:root {
  --primary-color: #6366f1;
  --primary-hover: #4f46e5;
  --danger-color: #ef4444;
  --danger-hover: #dc2626;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --bg-color: #f9fafb;
  --card-bg: #ffffff;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --border-color: #e5e7eb;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.header {
  background: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.tabs {
  display: flex;
  gap: 0.5rem;
}

.tab {
  padding: 0.5rem 1rem;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-size: 1rem;
  cursor: pointer;
  border-radius: 0.5rem;
  transition: all 0.2s;
}

.tab:hover {
  background: var(--bg-color);
}

.tab.active {
  background: var(--primary-color);
  color: white;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.user-menu {
  position: relative;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background 0.2s;
}

.user-info:hover {
  background: var(--bg-color);
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--border-color);
}

.username {
  font-weight: 500;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  min-width: 150px;
  display: none;
  overflow: hidden;
}

.dropdown-menu.show {
  display: block;
}

.dropdown-item {
  width: 100%;
  padding: 0.75rem 1rem;
  border: none;
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: background 0.2s;
}

.dropdown-item:hover {
  background: var(--bg-color);
}

.lang-switch {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  background: var(--card-bg);
  border-radius: 0.5rem;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s;
}

.lang-switch:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.main-content {
  flex: 1;
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

.list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.list-header h2 {
  font-size: 1.5rem;
}

.btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--primary-color);
  color: white;
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-secondary {
  background: var(--bg-color);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--border-color);
}

.btn-danger {
  background: var(--danger-color);
  color: white;
}

.btn-danger:hover {
  background: var(--danger-hover);
}

.btn-block {
  width: 100%;
}

.chatroom-list, .post-list {
  display: grid;
  gap: 1rem;
}

.chatroom-item, .post-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 1rem;
  cursor: pointer;
  transition: all 0.2s;
}

.chatroom-item:hover, .post-item:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow);
}

.chatroom-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.chatroom-name-cell {
  flex: 1;
  font-weight: 600;
  font-size: 1.1rem;
  padding: 0.5rem;
  background: var(--bg-color);
  border-radius: 0.375rem;
  border: 1px solid var(--border-color);
}

.heat-cell {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-width: 6rem;
  text-align: right;
}

.heat-icon {
  font-size: 1rem;
  margin-left: 0.125rem;
}

.chatroom-info-item {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.chatroom-name {
  font-weight: 600;
  font-size: 1.1rem;
}

.favorite-star {
  color: var(--warning-color);
  margin-right: 0.25rem;
}

.chatroom-meta {
  display: flex;
  gap: 1rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.heat-value {
  font-size: 1.25rem;
  font-weight: 700;
  min-width: 2.5rem;
  text-align: right;
}

.file-input-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.file-name {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.chatroom-countdown {
  color: var(--warning-color);
  font-weight: 500;
}

.post-item {
  display: flex;
  gap: 1rem;
}

.post-media {
  width: 120px;
  height: 120px;
  border-radius: 0.5rem;
  object-fit: cover;
  background: var(--border-color);
  flex-shrink: 0;
}

.post-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

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

.post-excerpt {
  color: var(--text-secondary);
  font-size: 0.875rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.post-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tag {
  padding: 0.25rem 0.5rem;
  background: var(--bg-color);
  border-radius: 0.25rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.post-meta {
  display: flex;
  justify-content: space-between;
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: auto;
}

.popular-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.popular-tag {
  padding: 0.5rem 1rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 2rem;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
}

.popular-tag:hover, .popular-tag.active {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 2rem;
}

.page-btn {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border-color);
  background: var(--card-bg);
  border-radius: 0.25rem;
  cursor: pointer;
  transition: all 0.2s;
}

.page-btn:hover, .page-btn.active {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

.page-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.chatroom-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.chatroom-header h2 {
  flex: 1;
}

.chatroom-actions {
  display: flex;
  gap: 0.5rem;
}

.chatroom-messages {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  height: 500px;
  overflow-y: auto;
  padding: 1rem;
  margin-bottom: 1rem;
}

.message {
  margin-bottom: 1rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.message-time-center {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.75rem;
  margin-bottom: 0.25rem;
  width: 100%;
}

.message-body {
  display: flex;
  gap: 0.75rem;
  position: relative;
  padding-left: 30px;
  max-width: 80%;
}

.message.own-message {
  align-items: flex-end;
}

.message.own-message .message-body {
  flex-direction: row-reverse;
  padding-left: 0;
  padding-right: 30px;
}

.recall-btn {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  border: none;
  background: var(--bg-color);
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  z-index: 10;
}

.recall-btn:hover {
  background: var(--danger-color);
  color: white;
}

.own-message .recall-btn {
  left: auto;
  right: 0;
}

.message-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--border-color);
  flex-shrink: 0;
}

.message-content {
  flex: 1;
}

.message-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.message-nickname {
  font-weight: 600;
  font-size: 0.875rem;
}

.message-time {
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.message-text {
  background: var(--bg-color);
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  display: inline-block;
}

.message-image {
  max-width: 300px;
  border-radius: 0.5rem;
  margin-top: 0.5rem;
}

.chatroom-input {
  display: flex;
  gap: 0.5rem;
}

.chatroom-input input[type="text"] {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: 1rem;
}

.post-detail {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.post-detail-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.post-detail-meta {
  display: flex;
  gap: 1rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.post-detail-content {
  margin-bottom: 1rem;
  line-height: 1.8;
}

.post-detail-media {
  width: 100%;
  max-height: 500px;
  object-fit: contain;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
}

.post-detail-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.like-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  background: var(--card-bg);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s;
}

.like-btn:hover {
  border-color: var(--danger-color);
  color: var(--danger-color);
}

.like-btn.liked {
  background: var(--danger-color);
  color: white;
  border-color: var(--danger-color);
}

.post-comments {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 1.5rem;
}

.post-comments h3 {
  margin-bottom: 1rem;
}

.comment-form {
  margin-bottom: 1.5rem;
}

.comment-form textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: 1rem;
  resize: vertical;
  min-height: 80px;
  margin-bottom: 0.5rem;
}

.comment-item {
  display: flex;
  gap: 0.75rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
}

.comment-item:last-child {
  border-bottom: none;
}

.comment-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--border-color);
  flex-shrink: 0;
}

.comment-content {
  flex: 1;
}

.comment-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.comment-nickname {
  font-weight: 600;
  font-size: 0.875rem;
}

.comment-time {
  color: var(--text-secondary);
  font-size: 0.75rem;
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal.show {
  display: flex;
}

.modal-content {
  background: var(--card-bg);
  border-radius: 0.5rem;
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  font-size: 1.25rem;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-secondary);
  line-height: 1;
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
}

.modal-sm {
  max-width: 400px;
}

.modal-sm .modal-body p {
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.6;
}

.auth-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.auth-tab, .auth-subtab {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  background: var(--card-bg);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s;
}

.auth-tab:hover, .auth-subtab:hover {
  border-color: var(--primary-color);
}

.auth-tab.active, .auth-subtab.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: 1rem;
}

.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none;
  border-color: var(--primary-color);
}

.expire-days-input {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.expire-days-input input {
  width: 100px;
  flex-shrink: 0;
}

.expire-hint {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.birthday-selects {
  display: flex;
  gap: 0.5rem;
}

.birthday-select {
  flex: 1;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: 1rem;
  background: white;
  cursor: pointer;
}

.birthday-select:focus {
  outline: none;
  border-color: var(--primary-color);
}

.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text-primary);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 2000;
}

.toast.show {
  opacity: 1;
}

.toast.success {
  background: var(--success-color);
}

.toast.error {
  background: var(--danger-color);
}

.emoji-picker-container {
  position: relative;
}

.emoji-btn {
  font-size: 1.5rem;
  padding: 0.5rem;
  min-width: 40px;
}

.emoji-picker {
  position: absolute;
  bottom: 100%;
  left: 0;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  padding: 0.5rem;
  margin-bottom: 0.5rem;
  z-index: 100;
}

.emoji-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 0.25rem;
  max-height: 200px;
  overflow-y: auto;
}

.emoji-item {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  border-radius: 0.25rem;
  transition: background 0.2s;
}

.emoji-item:hover {
  background: var(--bg-color);
}

.btn-icon {
  padding: 0.5rem;
  min-width: 40px;
  font-size: 1.5rem;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-icon:hover {
  background: var(--bg-color);
}

.chatroom-menu-dropdown {
  position: absolute;
  top: 60px;
  right: 2rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  min-width: 150px;
  z-index: 100;
  overflow: hidden;
}

.menu-item {
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: background 0.2s;
}

.menu-item:hover {
  background: var(--bg-color);
}

.chatroom-announcement {
  background: #fef3c7;
  border-bottom: 1px solid #fcd34d;
  padding: 0.75rem 1rem;
}

.announcement-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: #92400e;
}

.announcement-content {
  color: #78350f;
  font-size: 0.875rem;
}

.btn-close {
  background: transparent;
  border: none;
  font-size: 1.25rem;
  cursor: pointer;
  color: #92400e;
  line-height: 1;
}

.members-list {
  max-height: 400px;
  overflow-y: auto;
}

.member-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.member-item:last-child {
  border-bottom: none;
}

.member-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.member-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--border-color);
}

.member-name {
  font-weight: 500;
}

.member-badge {
  font-size: 0.75rem;
  padding: 0.125rem 0.5rem;
  background: var(--primary-color);
  color: white;
  border-radius: 0.25rem;
}

.btn-icon.active {
  color: var(--warning-color);
}

.user-profile {
  text-align: center;
  padding: 1rem 0;
}

.profile-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--border-color);
  margin-bottom: 1rem;
}

.profile-nickname {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.profile-email {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.profile-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contacts-list {
  display: grid;
  gap: 1rem;
}

.contact-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  transition: all 0.2s;
}

.contact-item:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow);
}

.contact-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--border-color);
}

.contact-info {
  flex: 1;
}

.contact-name {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.contact-email {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.friend-request-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.friend-request-item:last-child {
  border-bottom: none;
}

.friend-request-info {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.friend-request-actions {
  display: flex;
  gap: 0.5rem;
}

.clickable-avatar {
  cursor: pointer;
  transition: transform 0.2s;
}

.clickable-avatar:hover {
  transform: scale(1.1);
}

@media (max-width: 768px) {
  .header {
    padding: 1rem;
  }

  .header-left {
    gap: 1rem;
  }

  .logo {
    font-size: 1.25rem;
  }

  .main-content {
    padding: 1rem;
  }

  .post-item {
    flex-direction: column;
  }

  .post-media {
    width: 100%;
    height: 200px;
  }

  .chatroom-input {
    flex-wrap: wrap;
  }

  .chatroom-input input[type="text"] {
    width: 100%;
  }
}

.voice-btn {
  font-size: 1.25rem;
  padding: 0.5rem;
  min-width: 40px;
  position: relative;
}

.voice-btn.recording {
  background: var(--danger-color);
  color: white;
  border-color: var(--danger-color);
}

.voice-recording {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 1rem 2rem;
  border-radius: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 1000;
}

.voice-recording.cancelled {
  background: rgba(239, 68, 68, 0.9);
}

.voice-recording-indicator {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
}

.recording-dot {
  width: 12px;
  height: 12px;
  background: var(--danger-color);
  border-radius: 50%;
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.2);
  }
}

.voice-recording-wave {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 30px;
}

.voice-recording-wave span {
  width: 4px;
  background: white;
  border-radius: 2px;
  animation: wave 0.5s infinite ease-in-out;
}

.voice-recording-wave span:nth-child(1) { animation-delay: 0s; height: 10px; }
.voice-recording-wave span:nth-child(2) { animation-delay: 0.1s; height: 20px; }
.voice-recording-wave span:nth-child(3) { animation-delay: 0.2s; height: 30px; }
.voice-recording-wave span:nth-child(4) { animation-delay: 0.3s; height: 20px; }
.voice-recording-wave span:nth-child(5) { animation-delay: 0.4s; height: 10px; }

@keyframes wave {
  0%, 100% {
    transform: scaleY(0.5);
  }
  50% {
    transform: scaleY(1);
  }
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 0.875rem;
  line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
  margin-top: 0.25rem;
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.terms-link {
  display: block;
  font-size: 0.875rem;
  color: var(--primary-color);
  text-decoration: none;
  margin-top: 0.25rem;
}

.terms-link:hover {
  text-decoration: underline;
}

.terms-section {
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.terms-section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.terms-section h4 {
  font-size: 1.125rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.terms-section p {
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.terms-section ul {
  margin-left: 1.5rem;
  margin-bottom: 0.75rem;
}

.terms-section li {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.voice-hint {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.7);
}

.message-voice {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-color);
  padding: 0.5rem 0.75rem;
  border-radius: 1rem;
  cursor: pointer;
  max-width: 200px;
}

.message-voice.playing {
  background: var(--primary-color);
  color: white;
}

.voice-play-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-color);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  flex-shrink: 0;
}

.message-voice.playing .voice-play-btn {
  background: white;
  color: var(--primary-color);
}

.voice-duration {
  font-size: 0.875rem;
  white-space: nowrap;
}

.voice-progress {
  flex: 1;
  height: 3px;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 2px;
  overflow: hidden;
}

.message-voice.playing .voice-progress {
  background: rgba(255, 255, 255, 0.3);
}

.voice-progress-bar {
  height: 100%;
  background: var(--primary-color);
  width: 0%;
  transition: width 0.1s;
}

.message-voice.playing .voice-progress-bar {
  background: white;
}

.context-menu {
  position: fixed;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-lg);
  min-width: 120px;
  z-index: 1000;
  overflow: hidden;
}

.context-menu-item {
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: background 0.2s;
  font-size: 0.875rem;
}

.context-menu-item:hover {
  background: var(--bg-color);
}

.message-recalled {
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.875rem;
}

.password-input-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  position: relative;
}

.password-input-wrapper input {
  flex: 1;
  padding-right: 40px;
}

.password-toggle-btn {
  position: absolute;
  right: 8px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  padding: 4px 8px;
  color: var(--text-secondary);
  border-radius: 4px;
  transition: all 0.2s;
}

.password-toggle-btn:hover {
  background: var(--bg-color);
  color: var(--primary-color);
}