/* ===== 左侧导航栏（即梦风格） ===== */
.side-nav {
  position: fixed;
  top: 0;
  left: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 150;
  height: 100vh;
  padding: 12px 0;
  box-sizing: border-box;
  overflow: visible !important;
  overflow-x: visible !important;
  overflow-y: visible !important;
}

/* Logo 区域 */
.side-nav-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 0 12px;
}

.side-nav-logo img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: contain;
}

.side-nav-logo span {
  font-size: 11px;
  font-weight: 600;
  color: var(--text2, #ccc);
  letter-spacing: 2px;
}

[data-theme="light"] .side-nav-logo span {
  color: #333;
}

/* ===== 主导航区域 ===== */
.side-nav-main {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: auto;
  margin-bottom: auto;
  overflow: visible !important;
}

.side-nav-bottom {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 12px;
  overflow: visible !important;
}

/* 积分显示区域 */
.side-nav-balance {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 6px 4px;
  gap: 2px;
  color: var(--text3, #888);
  font-size: 10px;
  line-height: 1.2;
  transition: color 0.2s;
}

.side-nav-balance svg {
  width: 16px;
  height: 16px;
}

.side-nav-balance span {
  font-size: 9px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 36px;
  text-align: center;
}

[data-theme="light"] .side-nav-balance {
  color: #666;
}

.side-nav-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  border-radius: 8px;
  color: var(--text3, #888);
  text-decoration: none;
  transition: all 0.2s ease;
  position: relative;
  cursor: pointer;
}

.side-nav-btn:hover {
  background: rgba(108, 92, 231, 0.2);
  color: var(--text, #fff);
}

.side-nav-btn.active {
  background: rgba(108, 92, 231, 0.3);
  color: var(--accent, #6c5ce7);
}

.side-nav-btn svg {
  width: 20px;
  height: 20px;
}

/* 分隔线 */
.side-nav-divider {
  width: 24px;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  margin: 2px auto;
}

/* 用户头像按钮 */
.side-nav-user {
  position: relative;
}

.side-nav-user .side-nav-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  display: none;
}

.side-nav-user .side-nav-icon {
  display: block;
}

.side-nav-user.has-avatar .side-nav-icon {
  display: none;
}

.side-nav-user.has-avatar .side-nav-avatar {
  display: block !important;
}

/* ===== 侧边栏收起/展开按钮 ===== */
.side-nav-toggle {
  position: fixed;
  top: 50%;
  left: 62px;
  transform: translateY(-50%);
  width: 16px;
  height: 32px;
  background: rgba(30, 30, 30, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  color: var(--text3, #888);
  cursor: pointer;
  z-index: 149;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
  backdrop-filter: blur(8px);
  padding: 0;
}

.side-nav-toggle:hover {
  background: rgba(108, 92, 231, 0.3);
  color: var(--accent, #6c5ce7);
  border-color: rgba(108, 92, 231, 0.3);
}

.side-nav-toggle svg {
  width: 10px;
  height: 10px;
}

/* 收起时，toggle 按钮移到左侧边缘 */
body.side-nav-collapsed .side-nav-toggle {
  left: 2px;
}

/* 浅色主题下的收起/展开按钮 */
[data-theme="light"] .side-nav-toggle {
  background: rgba(255, 255, 255, 0.8);
  border-color: rgba(0, 0, 0, 0.1);
  color: #666;
}

[data-theme="light"] .side-nav-toggle:hover {
  background: rgba(108, 92, 231, 0.15);
  color: var(--accent, #6c5ce7);
  border-color: rgba(108, 92, 231, 0.3);
}

/* ===== 侧边栏收起状态 ===== */
.side-nav.collapsed {
  left: -52px;
  opacity: 0;
  pointer-events: none;
  transition: left 0.25s ease, opacity 0.25s ease;
}

.side-nav:not(.collapsed) {
  transition: left 0.25s ease, opacity 0.25s ease;
}

/* ===== 内容区域缩进 ===== */
body:not(.side-nav-collapsed) .app {
  margin-left: 64px;
  transition: margin-left 0.25s ease;
}

body.side-nav-collapsed .app {
  margin-left: 0;
  transition: margin-left 0.25s ease;
}

/* 画布页面不缩进 */
body.canvas-page .app {
  margin-left: 0 !important;
}

/* 用户菜单弹出 */
.side-nav-user-menu {
  position: fixed;
  left: 60px;
  top: 50%;
  transform: translateY(-50%);
  width: 240px;
  background: rgba(30, 30, 30, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 12px;
  display: none;
  z-index: 200;
  backdrop-filter: blur(12px);
}

.side-nav-user-menu.open {
  display: block;
}

.side-nav-user-menu .um-section {
  margin-bottom: 10px;
}

.side-nav-user-menu .um-label {
  font-size: 11px;
  color: var(--text3, #888);
  margin-bottom: 4px;
}

.side-nav-user-menu .um-key {
  font-size: 12px;
  color: var(--text, #fff);
  background: rgba(255, 255, 255, 0.05);
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
  word-break: break-all;
}

.side-nav-user-menu .um-stats {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.side-nav-user-menu .um-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
}

.side-nav-user-menu .um-stat-icon {
  width: 16px;
  text-align: center;
}

.side-nav-user-menu .um-stat-label {
  flex: 1;
  color: var(--text3, #888);
  margin-left: 4px;
}

.side-nav-user-menu .um-stat-val {
  color: var(--text, #fff);
  font-weight: 600;
}

.side-nav-user-menu .um-actions {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.side-nav-user-menu .um-action-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.05);
  border: none;
  border-radius: 6px;
  color: var(--text, #fff);
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s;
}

.side-nav-user-menu .um-action-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.side-nav-user-menu .um-action-btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* 更多菜单 */
.side-nav-more-menu {
  position: fixed;
  left: 60px;
  bottom: 20px;
  width: 200px;
  background: rgba(30, 30, 30, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 8px;
  display: none;
  z-index: 200;
  backdrop-filter: blur(12px);
}

.side-nav-more-menu.open {
  display: block;
}

.side-nav-more-menu .more-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--text, #fff);
  font-size: 13px;
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: background 0.2s;
}

.side-nav-more-menu .more-item:hover {
  background: rgba(255, 255, 255, 0.1);
}

.side-nav-more-menu .more-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.side-nav-more-menu .more-item-static {
  cursor: default;
  pointer-events: auto;
}
.side-nav-more-menu .more-item-static:hover {
  background: transparent;
}

/* ============================================
   "更多"弹窗（ICP备案 + 联系我们）
   ============================================
   架构说明：
   - 原方案：纯CSS checkbox hack（#sideNavMoreToggle:checked ~ .side-nav-icp-popup）
   - 问题：只能通过再次点击"更多"按钮关闭，点击外部无效（::before z-index:-1 无法捕获点击）
   - 新方案：Vue v-if 控制 + 遮罩层（.side-nav-icp-backdrop），点击遮罩层即可关闭
   - 弹窗内部 @click.stop 阻止冒泡，防止点击弹窗内容时触发遮罩关闭
   ============================================ */

/* 遮罩层：覆盖全屏，点击关闭弹窗 */
.side-nav-icp-backdrop {
  position: fixed;
  inset: 0;
  z-index: 199;
}

/* ICP备案弹窗 - Vue控制显示 */
.side-nav-icp-popup {
  position: fixed;
  left: 60px;
  bottom: 20px;
  width: 220px;
  background: rgba(30, 30, 30, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 12px;
  z-index: 200;
  backdrop-filter: blur(12px);
}

/* 以下为旧版纯CSS checkbox方案（已废弃，保留以防回退） */
.side-nav-more-toggle { display: none }
#sideNavMoreToggle:checked ~ .side-nav-icp-popup { display: block }

.side-nav-icp-popup .icp-link {
  display: block;
  text-align: center;
  color: var(--text3, #888);
  font-size: 12px;
  text-decoration: none;
  padding: 6px 0;
  transition: color 0.2s;
}

.side-nav-icp-popup .icp-link:hover {
  color: var(--accent, #6c5ce7);
}

.side-nav-icp-popup .more-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin: 6px 0;
}

.side-nav-icp-popup .contact-us-link {
  display: block;
  text-align: center;
  color: var(--text3, #888);
  font-size: 12px;
  text-decoration: none;
  padding: 6px 0;
  cursor: pointer;
  transition: color 0.2s;
  background: none;
  border: none;
  width: 100%;
}

.side-nav-icp-popup .contact-us-link:hover {
  color: var(--accent, #6c5ce7);
}

/* 浅色主题适配 */
[data-theme="light"] .side-nav-icp-popup {
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .side-nav-icp-popup .icp-link {
  color: #666;
}

[data-theme="light"] .side-nav-icp-popup .more-divider {
  background: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .side-nav-icp-popup .contact-us-link {
  color: #666;
}

[data-theme="light"] .side-nav-icp-popup {
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(0, 0, 0, 0.1);
}

/* 主题切换按钮 */
.side-nav-theme-btn {
  position: relative;
}

/* 旧版入口按钮 */
.side-nav-old-btn {
  background: rgba(255, 165, 0, 0.15) !important;
  border: 1px solid rgba(255, 165, 0, 0.3);
}

.side-nav-old-btn:hover {
  background: rgba(255, 165, 0, 0.25) !important;
  border-color: rgba(255, 165, 0, 0.5);
}

.side-nav-old-btn svg {
  color: #ffa500;
}

[data-theme="light"] .side-nav-old-btn {
  background: rgba(255, 165, 0, 0.1) !important;
  border-color: rgba(255, 165, 0, 0.25);
}

[data-theme="light"] .side-nav-old-btn:hover {
  background: rgba(255, 165, 0, 0.2) !important;
}

/* 浅色主题适配 */

[data-theme="light"] .side-nav-btn {
  color: var(--text3, #666);
}

[data-theme="light"] .side-nav-btn:hover {
  background: rgba(108, 92, 231, 0.1);
  color: var(--text, #333);
}

[data-theme="light"] .side-nav-btn.active {
  background: rgba(108, 92, 231, 0.15);
}

[data-theme="light"] .side-nav-divider {
  background: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .side-nav-user-menu,
[data-theme="light"] .side-nav-more-menu {
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .side-nav-btn::after {
  background: rgba(255, 255, 255, 0.95);
  color: var(--text, #333);
  border-color: rgba(0, 0, 0, 0.1);
}

/* 联系我们弹窗 */
.contact-us-modal{position:fixed;inset:0;z-index:220;display:none;align-items:center;justify-content:center;padding:24px 16px;box-sizing:border-box}
.contact-us-modal-dim{position:absolute;inset:0;background:color-mix(in srgb,#0a0c10 55%,transparent)}
.contact-us-modal-panel{position:relative;z-index:1;width:min(340px,calc(100vw - 32px));max-height:calc(100vh - 48px);border-radius:14px;border:1px solid var(--border);background:var(--bg2);box-shadow:0 20px 50px color-mix(in srgb,#000 45%,transparent);box-sizing:border-box;overflow:hidden;display:flex;flex-direction:column}
.contact-us-modal-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--border);flex-shrink:0}
.contact-us-modal-title{margin:0;font-size:16px;font-weight:700;color:var(--text)}
.contact-us-modal-x{width:32px;height:32px;border:none;border-radius:8px;background:transparent;color:var(--text3);font-size:20px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}
.contact-us-modal-x:hover{background:var(--bg3);color:var(--text)}
.contact-us-modal-body{padding:16px;display:flex;flex-direction:column;justify-content:center;align-items:center;overflow:auto}
.contact-us-modal-img{max-width:100%;height:auto;vertical-align:middle;border-radius:8px}