/* ============================================================
   拾来运转 — Modern Design System v2
   Inspired by Linear / Stripe / Vercel
   ============================================================ */

/* ----- CSS Variables ----- */
:root {
  --color-bg:        #f8fafc;
  --color-surface:   #ffffff;
  --color-border:    #e2e8f0;
  --color-border-light: #f1f5f9;

  --color-text:      #0f172a;
  --color-text-secondary: #64748b;
  --color-text-muted: #94a3b8;

  --color-primary:        #6366f1;
  --color-primary-hover:  #4f46e5;
  --color-primary-light:  #eef2ff;
  --color-primary-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);

  --color-success:        #10b981;
  --color-success-light:  #ecfdf5;
  --color-warning:        #f59e0b;
  --color-warning-light:  #fffbeb;
  --color-danger:         #ef4444;
  --color-danger-light:   #fef2f2;
  --color-info:           #3b82f6;
  --color-info-light:     #eff6ff;

  --radius-sm:   8px;
  --radius-md:   12px;
  --radius-lg:   16px;
  --radius-xl:   20px;

  --shadow-xs:   0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm:   0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:   0 4px 6px rgba(0,0,0,0.04), 0 2px 4px rgba(0,0,0,0.04);
  --shadow-lg:   0 10px 25px rgba(0,0,0,0.06), 0 4px 10px rgba(0,0,0,0.04);
  --shadow-xl:   0 20px 40px rgba(0,0,0,0.08), 0 8px 16px rgba(0,0,0,0.04);

  --font-sans:   -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  --font-mono:   "JetBrains Mono", "Fira Code", "Cascadia Code", monospace;

  --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   350ms cubic-bezier(0.4, 0, 0.2, 1);

  --navbar-height: 64px;
}

/* ----- Reset & Base ----- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--color-primary-hover);
}

/* ----- Typography ----- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

/* ----- Scrollbar ----- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ============================================================
   NAVBAR — Glassmorphism
   ============================================================ */
#mainNav {
  background: rgba(255,255,255,0.95) !important;
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
  height: var(--navbar-height);
}
#mainNav.scrolled {
  box-shadow: var(--shadow-md);
  border-bottom-color: transparent;
}

#mainNav .navbar-brand {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: var(--color-primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
#mainNav .navbar-brand i {
  -webkit-text-fill-color: #6366f1;
  font-size: 1.3rem;
}

#mainNav .nav-link {
  color: var(--color-text-secondary) !important;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 0.875rem !important;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}
#mainNav .nav-link:hover {
  color: var(--color-text) !important;
  background: var(--color-primary-light);
}
#mainNav .nav-link.active {
  color: var(--color-primary) !important;
  background: var(--color-primary-light);
}

/* Navbar action buttons */
#mainNav .btn {
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.4rem 0.875rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

#btnCheckin {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  border: none;
  color: #7c2d12;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.25);
}
#btnCheckin:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}
#btnCheckin:active {
  transform: translateY(0);
}
#btnCheckin:disabled {
  pointer-events: auto;
}

/* 移动端折叠菜单 */
@media (max-width: 991.98px) {
  #mainNav .navbar-collapse.show,
  #mainNav .navbar-collapse.collapsing {
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 0.75rem 1rem;
    margin-top: 0.5rem;
  }
}

/* Points display in nav */
#navPoints span {
  font-weight: 600;
  font-size: 0.9rem;
  background: var(--color-primary-light);
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  color: var(--color-primary);
}

/* Dropdown */
.dropdown-menu {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem;
  margin-top: 0.5rem;
  animation: dropdownIn 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}
@keyframes dropdownIn {
  from { opacity: 0; transform: translateY(-6px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.dropdown-item {
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.dropdown-item:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.dropdown-divider {
  margin: 0.375rem 0;
  border-color: var(--color-border);
}

/* Static navbar (login/register pages) */
.navbar.navbar-dark:not(#mainNav) {
  background: rgba(255,255,255,0.95) !important;
  border-bottom: 1px solid var(--color-border);
}
.navbar.navbar-dark:not(#mainNav) .navbar-brand {
  font-weight: 700;
  background: var(--color-primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  background: var(--color-surface);
  transition: box-shadow var(--transition-normal);
}
.card:hover {
  box-shadow: var(--shadow-md);
}
.card-header {
  background: transparent;
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 1.25rem;
  font-weight: 650;
}
.card-body {
  padding: 1.25rem;
}
.card-footer {
  background: transparent;
  border-top: 1px solid var(--color-border);
}

/* Card with lifted effect on hover */
.card-lift:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ============================================================
   STAT CARDS
   ============================================================ */
.stat-card {
  border: 1px solid var(--color-border) !important;
  border-radius: var(--radius-lg) !important;
  background: var(--color-surface);
  padding: 1.25rem !important;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), opacity var(--transition-normal);
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: 3px 3px 0 0;
  opacity: 0;
  transition: opacity var(--transition-normal);
}
.stat-card:hover::before {
  opacity: 1;
}
.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.stat-card .stat-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}
.stat-card .stat-icon i {
  transition: transform var(--transition-normal);
}
.stat-card:hover .stat-icon i {
  transform: scale(1.12);
}
.stat-card .stat-number {
  font-size: 2rem;
  font-weight: 750;
  letter-spacing: -0.03em;
  color: var(--color-text);
  line-height: 1.2;
  transition: color var(--transition-normal);
}
.stat-card .stat-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-top: 0.15rem;
}

/* Colored top accent per stat */
.stat-card.accent-warning::before  { background: var(--color-warning); }
.stat-card.accent-success::before  { background: var(--color-success); }
.stat-card.accent-info::before     { background: var(--color-info); }
.stat-card.accent-muted::before    { background: var(--color-text-muted); }

.stat-card.stat-active {
  transform: translateY(-2px);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.35), var(--shadow-md);
  border-color: rgba(124, 58, 237, 0.5) !important;
}
.stat-card.stat-active::before {
  opacity: 1;
}
.stat-card.stat-active .stat-number {
  color: #7c3aed;
}

/* ============================================================
   ITEM CARDS (index grid)
   ============================================================ */
.item-card {
  border: 1px solid var(--color-border) !important;
  border-radius: var(--radius-lg) !important;
  background: var(--color-surface);
  overflow: hidden;
  height: 100%;
  cursor: pointer;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}
.item-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: #c7d2fe !important;
}
.item-card .card-img-top {
  height: 190px;
  object-fit: cover;
  background: #f1f5f9;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.item-card:hover .card-img-top {
  transform: scale(1.04);
}
.item-card .card-body {
  padding: 1rem;
}
.item-card .card-title {
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.375rem;
}
.item-card .card-text {
  font-size: 0.825rem;
  color: var(--color-text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
}

/* ============================================================
   BADGES & TAGS
   ============================================================ */
.badge {
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.3em 0.65em;
  border-radius: 6px;
}
.badge-lost    { background: #fef3c7; color: #92400e; }
.badge-found   { background: #d1fae5; color: #065f46; }
.badge-open    { background: #dbeafe; color: #1e40af; }
.badge-closed  { background: #f1f5f9; color: #475569; }
.badge-deleted { background: #fee2e2; color: #991b1b; }

.badge-admin {
  background: var(--color-danger);
  color: #fff;
  font-size: 0.6rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  letter-spacing: 0.05em;
  vertical-align: middle;
  margin-left: 4px;
}
.badge-pinned {
  background: linear-gradient(135deg, #10b981, #34d399);
  color: #fff;
  font-size: 0.7rem;
  animation: pinnedPulse 2.2s ease infinite;
}
@keyframes pinnedPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  50%      { box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
}

.badge-pushed {
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  color: #fff;
  font-size: 0.7rem;
  animation: pushedPulse 2.2s ease infinite;
}
@keyframes pushedPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(124, 58, 237, 0.4); }
  50%      { box-shadow: 0 0 0 7px rgba(124, 58, 237, 0); }
}

/* Bounty badge */
.bounty-badge {
  background: linear-gradient(135deg, #f97316, #f59e0b);
  color: #fff;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 9999px;
  font-size: 0.78rem;
  animation: bountyPulse 2s ease infinite;
}
@keyframes bountyPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.45); }
  50%      { box-shadow: 0 0 0 8px rgba(245, 158, 11, 0); }
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  font-weight: 600;
  font-size: 0.875rem;
  padding: 0.5rem 1.125rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
}
.btn:active {
  transform: scale(0.97) !important;
}

/* Primary */
.btn-primary {
  background: var(--color-primary-gradient);
  border: none;
  color: #fff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.25);
}
.btn-primary:hover {
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
  transform: translateY(-1px);
  color: #fff;
}
.btn-primary:active {
  box-shadow: 0 2px 6px rgba(99, 102, 241, 0.2);
}

/* Success */
.btn-success {
  background: linear-gradient(135deg, #10b981, #059669);
  border: none;
  color: #fff;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.25);
}
.btn-success:hover {
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.4);
  transform: translateY(-1px);
  color: #fff;
}

/* Warning */
.btn-warning {
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  border: none;
  color: #7c2d12;
}
.btn-warning:hover {
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
  transform: translateY(-1px);
}

/* Outline */
.btn-outline-primary {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}
.btn-outline-primary:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-1px);
}
.btn-outline-secondary {
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}
.btn-outline-secondary:hover {
  background: #f1f5f9;
  color: var(--color-text);
}

/* Danger */
.btn-danger {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  border: none;
}
.btn-danger:hover {
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.35);
  transform: translateY(-1px);
}

/* ============================================================
   FORMS & INPUTS
   ============================================================ */
.form-control,
.form-select {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.875rem;
  font-size: 0.9rem;
  font-weight: 450;
  background: var(--color-surface);
  color: var(--color-text);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: var(--shadow-xs);
}
.form-control:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
  outline: none;
}
.form-control::placeholder {
  color: var(--color-text-muted);
}
.form-label {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-text);
  margin-bottom: 0.375rem;
}
.form-text {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.input-group-text {
  background: #f8fafc;
  border: 1.5px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}
.form-check-input:focus {
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}
.form-check-input:checked {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ============================================================
   MODALS
   ============================================================ */
.modal-content {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}
.modal-header {
  border-bottom: 1px solid var(--color-border);
  padding: 1.125rem 1.25rem;
}
.modal-title {
  font-weight: 650;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}
.modal-body {
  padding: 1.25rem;
}
.modal-footer {
  border-top: 1px solid var(--color-border);
  padding: 1rem 1.25rem;
}
.modal.fade .modal-dialog {
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  transform: translateY(12px) scale(0.97);
  opacity: 0;
}
.modal.show .modal-dialog {
  transform: translateY(0) scale(1);
  opacity: 1;
}

/* ============================================================
   TABS & PILLS
   ============================================================ */
.nav-pills .nav-link {
  color: var(--color-text-secondary);
  font-weight: 550;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.nav-pills .nav-link:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.nav-pills .nav-link.active {
  background: var(--color-primary-gradient);
  color: #fff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.nav-tabs .nav-link {
  color: var(--color-text-secondary);
  font-weight: 550;
  font-size: 0.875rem;
  border: none;
  padding: 0.625rem 1rem;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.nav-tabs .nav-link:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
}
.nav-tabs .nav-link.active {
  color: var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  background: transparent;
}

/* ============================================================
   PAGINATION
   ============================================================ */
.pagination .page-link {
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-weight: 500;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  margin: 0 2px;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  background: var(--color-surface);
}
.pagination .page-link:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.pagination .page-item.active .page-link {
  background: var(--color-primary-gradient);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 2px 6px rgba(99, 102, 241, 0.25);
}
.pagination .page-item.disabled .page-link {
  color: var(--color-text-muted);
  background: #f8fafc;
}

/* ============================================================
   ALERTS
   ============================================================ */
.alert {
  border: none;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.875rem 1rem;
}
.alert-danger  { background: var(--color-danger-light);  color: #991b1b; }
.alert-success { background: var(--color-success-light); color: #065f46; }
.alert-warning { background: var(--color-warning-light); color: #92400e; }
.alert-info    { background: var(--color-info-light);    color: #1e40af; }

/* ============================================================
   CONVERSATION LIST
   ============================================================ */
.conversation-item {
  display: flex;
  align-items: center;
  padding: 0.875rem 1rem;
  cursor: pointer;
  border-bottom: 1px solid var(--color-border-light);
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  border-radius: var(--radius-sm);
  margin: 2px 6px;
}
.conversation-item:hover {
  background: var(--color-primary-light);
}
.conversation-item.active {
  background: #eef2ff;
  border-left: 3px solid var(--color-primary);
}
.conversation-item .conv-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  margin-right: 10px;
  object-fit: cover;
  background: #e2e8f0;
  border: 2px solid var(--color-border);
}
.conversation-item .conv-name {
  font-weight: 650;
  font-size: 0.9rem;
  letter-spacing: -0.01em;
}
.conversation-item .conv-preview {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.unread-badge {
  background: var(--color-danger);
  color: #fff;
  border-radius: 9999px;
  min-width: 20px;
  height: 20px;
  font-size: 0.68rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}

/* ============================================================
   CHAT LAYOUT — 左右面板滚动
   ============================================================ */
#conversationList {
  min-height: 0 !important;
}
#chatWindow {
  overflow: hidden;
}
#chatMessages {
  min-height: 0 !important;
}

/* ============================================================
   CHAT MESSAGES
   ============================================================ */
.chat-msg-row {
  margin-bottom: 16px;
}
.chat-msg-row.msg-sent { text-align: right; }
.chat-msg-row.msg-recv { text-align: left; }
.chat-msg-row .msg-bubble {
  display: inline-block;
  max-width: 70%;
  padding: 10px 15px;
  border-radius: 18px;
  font-size: 0.925rem;
  line-height: 1.65;
  text-align: left;
  white-space: pre-wrap;
  word-break: normal;
  overflow-wrap: break-word;
  animation: msgIn 0.2s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.chat-msg-row.msg-sent .msg-bubble {
  background: var(--color-primary-gradient);
  color: #fff;
  border-bottom-right-radius: 6px;
}
.chat-msg-row.msg-recv .msg-bubble {
	background: #cbd5e1 !important;
	color: #1e293b !important;
	border-bottom-left-radius: 6px;
}
.chat-msg-row .msg-time {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  margin-top: 3px;
}
.chat-msg-row.msg-sent .msg-time { text-align: right; }

/* ---- Chat Input Row ---- */
.chat-input-row .input-group {
  flex: 1;
  width: auto;
}

/* ---- Icon Buttons ---- */
.btn-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  padding: 0;
}
.btn-icon:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ---- File Preview ---- */
.file-preview {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-size: 0.8rem;
  margin-bottom: 6px;
}
.file-preview .preview-thumb {
  width: 42px;
  height: 42px;
  object-fit: cover;
  border-radius: 6px;
  flex-shrink: 0;
}
.file-preview .preview-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 500;
  min-width: 0;
}
.file-preview .preview-size {
  color: var(--color-text-muted);
  font-size: 0.72rem;
  white-space: nowrap;
}

/* ---- Emoji Picker ---- */
.emoji-picker {
  position: absolute;
  bottom: 46px;
  left: 0;
  width: 280px;
  max-height: 220px;
  overflow-y: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 4px;
  z-index: 1000;
}
.emoji-item {
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  border-radius: 4px;
  transition: background var(--transition-fast);
}
.emoji-item:hover {
  background: var(--color-primary-light);
}

/* ---- Image in Messages ---- */
.msg-bubble .msg-image {
  display: block;
  max-width: 240px;
  max-height: 320px;
  border-radius: 10px;
  margin-bottom: 4px;
  cursor: pointer;
}
.msg-bubble .msg-text {
  display: block;
  margin-top: 4px;
}

/* ============================================================
   NOTIFICATIONS
   ============================================================ */
.notification-item {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--color-border-light);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  border-radius: var(--radius-sm);
  margin-bottom: 2px;
}
.notification-item:hover {
  background: #f8fafc;
}
.notification-item.unread {
  background: #eef2ff;
  border-left: 3px solid var(--color-primary);
}

/* ============================================================
   SHOP CARDS
   ============================================================ */
.shop-card {
  border: 1px solid var(--color-border) !important;
  border-radius: var(--radius-lg) !important;
  overflow: hidden;
  height: 100%;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  position: relative;
}
.shop-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.shop-card .card-img-top {
  height: 200px;
  object-fit: contain;
  background: #f8fafc;
  padding: 12px;
}
.shop-card .points-tag {
  position: absolute;
  top: 10px;
  right: 10px;
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  color: #7c2d12;
  padding: 4px 12px;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 0.8rem;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
}
.shop-card.stock-out {
  opacity: 0.55;
}

/* Odds badge */
.odds-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--color-danger);
  background: var(--color-danger-light);
  border: 1px solid #fecaca;
  border-radius: 6px;
  padding: 2px 8px;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.odds-badge:hover {
  background: var(--color-danger);
  color: #fff;
}

/* ============================================================
   TABLES
   ============================================================ */
.table {
  font-size: 0.875rem;
  border-collapse: separate;
  border-spacing: 0;
}
.table thead th {
  background: #f8fafc;
  font-weight: 650;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  padding: 0.75rem 1rem;
  border-bottom: 2px solid var(--color-border);
}
.table tbody td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: middle;
}
.table-hover tbody tr:hover {
  background: #f8fafc;
}

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty-state i {
  color: #cbd5e1;
}
.empty-state p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: 0.75rem;
}

/* ============================================================
   PAGE HERO / HEADER
   ============================================================ */
.page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.page-header h3 {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin: 0;
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.anim-fade-up {
  animation: fadeInUp 0.45s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}
.anim-stagger > * {
  animation: fadeInUp 0.45s cubic-bezier(0.4, 0, 0.2, 1) backwards;
}
.anim-stagger > *:nth-child(1) { animation-delay: 0s; }
.anim-stagger > *:nth-child(2) { animation-delay: 0.06s; }
.anim-stagger > *:nth-child(3) { animation-delay: 0.12s; }
.anim-stagger > *:nth-child(4) { animation-delay: 0.18s; }
.anim-stagger > *:nth-child(5) { animation-delay: 0.24s; }
.anim-stagger > *:nth-child(6) { animation-delay: 0.30s; }
.anim-stagger > *:nth-child(7) { animation-delay: 0.36s; }
.anim-stagger > *:nth-child(8) { animation-delay: 0.42s; }

/* ============================================================
   TOAST
   ============================================================ */
.toast-container {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast-msg {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1.125rem;
  box-shadow: var(--shadow-lg);
  font-weight: 550;
  font-size: 0.875rem;
  animation: toastIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  max-width: 360px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.toast-msg.success { border-left: 3px solid var(--color-success); }
.toast-msg.error   { border-left: 3px solid var(--color-danger); }
.toast-msg.info    { border-left: 3px solid var(--color-info); }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ============================================================
   SPINNER / LOADING
   ============================================================ */
.spinner-border {
  border-width: 0.15em;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet */
@media (max-width: 991.98px) {
  .stat-card .stat-number { font-size: 1.55rem; }
  .stat-card .stat-icon   { font-size: 1.3rem; }
  .item-card .card-img-top { height: 155px; }
}

/* Mobile */
@media (max-width: 767.98px) {
  /* 消息页：左右面板改为上下布局 */
  .messages-layout {
    flex-direction: column !important;
  }
  .messages-sidebar {
    width: 100% !important;
    height: auto !important;
    max-height: 40vh;
    border-right: none !important;
    border-bottom: 2px solid var(--color-border);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
  }
  .messages-main {
    border-radius: 0 0 var(--radius-lg) var(--radius-lg) !important;
  }

  #chatWindow {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    background: #fff;
  }

  .stat-card {
    padding: 0.875rem !important;
    border-radius: var(--radius-md) !important;
  }
  .stat-card .stat-number { font-size: 1.3rem; }
  .stat-card .stat-icon   { font-size: 1.15rem; }
  .stat-card .stat-label  { font-size: 0.72rem; }

  .item-card .card-img-top { height: 135px; }
  .item-card .card-title   { font-size: 0.9rem; }
  .item-card .card-text    { font-size: 0.78rem; }

  main.container {
    padding-left: 0.75rem !important;
    padding-right: 0.75rem !important;
  }

  .card-body, .card .card-body {
    padding: 1rem;
  }
}

/* Small mobile */
@media (max-width: 575.98px) {
  #homeTabs .nav-link {
    font-size: 0.8rem;
    padding: 0.4rem 0.75rem;
  }

  .stat-card .stat-number { font-size: 1.15rem; }
  .stat-card .stat-icon   { font-size: 1rem; }

  .item-card .card-body   { padding: 0.6rem; }
  .item-card .card-img-top { height: 115px; }
}

/* ----- AI润色按钮 (必须在全局CSS中定义，SPA注入时@property才能生效) ----- */
@property --border-angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}
.btn-ai-polish {
  position: relative;
  padding: 2px 10px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #7c3aed, #a855f7);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  animation: purplePulse 2.2s ease infinite;
}
@keyframes purplePulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(124, 58, 237, 0.4); }
  50%      { box-shadow: 0 0 0 7px rgba(124, 58, 237, 0); }
}
.btn-ai-polish:hover {
  background: linear-gradient(135deg, #6d28d9, #9333ea);
}
.btn-ai-polish:disabled {
  animation: none;
  box-shadow: none;
  color: #a78bfa;
  background: #fff;
  cursor: not-allowed;
}
.btn-ai-polish::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 8px;
  padding: 2px;
  background: conic-gradient(from var(--border-angle),
    rgba(124,58,237,0) 0deg,
    rgba(124,58,237,0) 250deg,
    rgba(168,85,247,0.2) 270deg,
    rgba(168,85,247,0.5) 290deg,
    #a855f7 310deg,
    #c084fc 335deg,
    #a855f7 348deg,
    rgba(124,58,237,0) 351deg,
    rgba(124,58,237,0) 360deg
  );
  animation: borderSpin 3s linear infinite;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  display: none;
}
.btn-ai-polish:disabled::before {
  display: block;
}
@keyframes borderSpin {
  to { --border-angle: 360deg; }
}

/* ============================================================
   CREDIT RULES POPOVER
   ============================================================ */
.credit-rules-icon {
  color: #94a3b8;
  font-size: 0.85rem;
  cursor: pointer;
  margin-left: 4px;
  vertical-align: middle;
  transition: color var(--transition-fast);
}
.credit-rules-icon:hover {
  color: var(--color-primary);
}

.credit-rules-popover {
  --bs-popover-max-width: 300px;
  --bs-popover-border-radius: var(--radius-md);
  --bs-popover-border-color: var(--color-border);
  --bs-popover-box-shadow: var(--shadow-lg);
}
.credit-rules-popover .popover-header {
  font-size: 0.85rem;
  font-weight: 650;
  padding: 0.75rem 1rem;
  background: #f8fafc;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  letter-spacing: -0.01em;
}
.credit-rules-popover .popover-body {
  padding: 0.625rem 0;
}

.rules-list {
  display: flex;
  flex-direction: column;
}
.rules-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.375rem 1rem;
  font-size: 0.8rem;
  line-height: 1.6;
}
.rules-label {
  font-weight: 550;
}
.rules-value {
  color: var(--color-text-secondary);
  font-weight: 500;
  margin-left: 1rem;
  white-space: nowrap;
}
.rules-label.label-base   { color: #6366f1; }
.rules-label.label-danger { color: #ef4444; }
.rules-label.label-warn   { color: #d97706; }
.rules-label.label-info   { color: #3b82f6; }
.rules-label.label-success{ color: #059669; }
.rules-divider {
  height: 1px;
  background: var(--color-border);
  margin: 0.25rem 0.75rem;
}