/* ============================================================
   一诺CMS - 组件样式 (Components)
   幻灯推荐、广告位、评论区等独立组件
   ============================================================ */

/* === Iconify 图标基础样式 === */
iconify-icon {
  display: inline-block;
  width: 1em;
  height: 1em;
  vertical-align: -0.125em;
}
iconify-icon[inline] {
  vertical-align: -0.15em;
}
/* 按钮内的图标 */
button iconify-icon,
.btn-submit iconify-icon,
.header-search button iconify-icon {
  font-size: 1.25em;
}
/* 导航图标 */
.nav-icon iconify-icon,
.mbn-icon iconify-icon {
  font-size: 1.2em;
  vertical-align: -0.2em;
}
/* 空状态大图标 */
.empty-icon iconify-icon {
  font-size: 3rem;
  opacity: 0.3;
}
/* 卡片内大图标 */
.card iconify-icon:not([inline]) {
  font-size: 2rem;
}
/* 标题内图标 */
.card-header iconify-icon,
h2 iconify-icon {
  margin-right: 0.3em;
}
/* 文章元数据图标 */
.article-meta iconify-icon,
.article-item-meta iconify-icon {
  margin-right: 0.15em;
  font-size: 0.9em;
  opacity: 0.7;
}
/* 幻灯导航按钮 */
.slideshow-btn iconify-icon {
  font-size: 1.5rem;
}

/* === 图文幻灯推荐 === */
.slideshow {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-gray-800);
  aspect-ratio: 16 / 9;
  margin-bottom: var(--space-6);
}

.slideshow-track {
  display: flex;
  height: 100%;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.slideshow-slide {
  flex: 0 0 100%;
  position: relative;
  height: 100%;
}

.slideshow-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slideshow-slide .slide-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-8) var(--space-6) var(--space-6);
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  color: var(--color-white);
}

.slideshow-slide .slide-category {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-2);
}

.slideshow-slide .slide-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-2);
}

.slideshow-slide .slide-title a {
  color: var(--color-white);
}

.slideshow-slide .slide-meta {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.7);
}

/* 幻灯导航按钮 */
.slideshow-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(4px);
  border: none;
  color: var(--color-white);
  font-size: var(--font-size-xl);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast);
  z-index: 10;
}

.slideshow-btn:hover {
  background: rgba(255,255,255,0.4);
}

.slideshow-btn.prev { left: var(--space-4); }
.slideshow-btn.next { right: var(--space-4); }

/* 幻灯指示器 */
.slideshow-dots {
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-2);
  z-index: 10;
}

.slideshow-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.4);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.slideshow-dot.active {
  background: var(--color-white);
  width: 28px;
  border-radius: var(--radius-full);
}

/* 幻灯缩略图导航 */
.slideshow-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-3);
  margin-bottom: var(--space-6);
}

.slideshow-thumb {
  display: block;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  opacity: 0.85;
  transition: opacity var(--transition-fast);
  aspect-ratio: 16/9;
  text-decoration: none;
}

.slideshow-thumb:hover {
  opacity: 1;
}

.slideshow-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* === 推荐卡片区 === */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.featured-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.featured-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.featured-card img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.featured-card-body {
  padding: var(--space-4);
}

.featured-card-body h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.featured-card-body h4 a {
  color: var(--color-text-primary);
}

.featured-card-body h4 a:hover {
  color: var(--color-primary);
}

.featured-card-body .fc-meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

/* === 两栏文章列表 === */
.article-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.article-grid-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.article-grid-card:hover {
  box-shadow: var(--shadow-lg);
}

.article-grid-card img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.article-grid-card .agc-body {
  padding: var(--space-4);
}

.article-grid-card .agc-body h4 {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-2);
}

.article-grid-card .agc-body h4 a {
  color: var(--color-text-primary);
}

.article-grid-card .agc-body h4 a:hover {
  color: var(--color-primary);
}

/* === 评论区 === */
.comment-section {
  margin-top: var(--space-8);
}

.comment-form textarea {
  width: 100%;
  min-height: 100px;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  resize: vertical;
  outline: none;
  transition: border-color var(--transition-fast);
}

.comment-form textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.comment-form-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: var(--space-3);
}

.btn-submit {
  padding: var(--space-2) var(--space-6);
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-submit:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(166, 61, 47, 0.25);
}

.btn-submit:active {
  transform: translateY(0);
  box-shadow: none;
}

.comment-list {
  margin-top: var(--space-6);
}

.comment-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.comment-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  background: var(--color-gray-200);
}

.comment-body {
  flex: 1;
}

.comment-author {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-1);
}

.comment-time {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  margin-left: var(--space-3);
}

.comment-content {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-2);
}

.comment-actions {
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}

.comment-actions a {
  margin-right: var(--space-3);
  color: var(--color-text-tertiary);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.comment-actions a:hover {
  color: var(--color-primary);
}

.comment-actions a.comment-like.liked {
  color: var(--color-primary);
}

/* 评论置顶/精华角标 */
.comment-badge {
  margin-left: var(--space-2);
  padding: 0 var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.comment-badge-top {
  color: var(--color-primary);
  background: var(--color-primary-bg);
}

.comment-badge-best {
  color: var(--color-warning);
  background: #f7efe0;
}

/* 回复目标用户名 */
.comment-reply-target {
  color: var(--color-primary);
  margin-right: var(--space-2);
}

/* 子评论盖楼：缩进 + 左侧引线 */
.comment-children {
  margin-top: var(--space-4);
  padding-left: var(--space-6);
  border-left: 2px solid var(--color-border-light);
}

.comment-children .comment-item {
  padding: var(--space-3) 0;
  border-bottom: none;
}

.comment-children .comment-avatar {
  width: 32px;
  height: 32px;
}

/* 内联回复框 */
.comment-reply-box {
  margin-top: var(--space-3);
  background: var(--color-gray-50);
  border-radius: var(--radius-md);
  padding: var(--space-3);
}

.reply-textarea {
  width: 100%;
  min-height: 70px;
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-family-base);
  font-size: var(--font-size-sm);
  resize: vertical;
  outline: none;
  transition: border-color var(--transition-fast);
}

.reply-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.reply-box-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.reply-cancel {
  padding: var(--space-2) var(--space-4);
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.reply-cancel:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* === 评论登录提示条 === */
.comment-login-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-3);
  background: var(--color-primary-bg);
  border: 1px solid var(--color-primary-border);
  border-radius: var(--radius-md);
}

.comment-login-bar-text {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.comment-login-btn {
  padding: var(--space-1) var(--space-4);
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition-fast);
}

.comment-login-btn:hover {
  background: var(--color-primary-dark);
}

/* === 登录/注册弹窗 === */
.auth-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background: rgba(36, 31, 24, 0.5);
}

.auth-modal {
  width: 100%;
  max-width: 400px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.auth-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-border-light);
}

.auth-modal-header h3 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  font-family: var(--font-family-serif);
}

.auth-modal-close {
  border: none;
  background: none;
  font-size: var(--font-size-2xl);
  line-height: 1;
  color: var(--color-text-tertiary);
  cursor: pointer;
  padding: 0 var(--space-2);
  transition: color var(--transition-fast);
}

.auth-modal-close:hover {
  color: var(--color-primary);
}

.auth-modal-body {
  padding: var(--space-6);
}

.auth-modal-error {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
}

/* === 通知横幅 === */
.alert {
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-4);
  font-size: var(--font-size-sm);
}

.alert-info {
  background: #eef0f4;
  color: #3d4a5c;
  border: 1px solid #d4dae2;
}

.alert-success {
  background: #edf3ec;
  color: #3f5c3f;
  border: 1px solid #cdddcb;
}

.alert-warning {
  background: #f8f0e0;
  color: #7a5818;
  border: 1px solid #e8d6ad;
}

.alert-danger {
  background: #f8ece8;
  color: #8c2f24;
  border: 1px solid #e7cfc5;
}

/* === 空状态 === */
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-4);
  color: var(--color-text-tertiary);
}

.empty-state .empty-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
}

.empty-state p {
  font-size: var(--font-size-sm);
}

/* === Skeleton 加载占位 === */
.skeleton {
  background: linear-gradient(90deg, var(--color-gray-100) 25%, var(--color-gray-200) 50%, var(--color-gray-100) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-text {
  height: 16px;
  margin-bottom: var(--space-2);
}

.skeleton-text:last-child {
  width: 60%;
}

.skeleton-thumb {
  aspect-ratio: 16/9;
}

/* === 移动端底部导航 === */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  z-index: var(--z-fixed);
  padding: var(--space-2) 0;
  padding-bottom: env(safe-area-inset-bottom, var(--space-2));
}

.mobile-bottom-nav-inner {
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.mobile-bottom-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
  padding: var(--space-1) var(--space-3);
}

.mobile-bottom-nav a .mbn-icon {
  font-size: var(--font-size-xl);
}

.mobile-bottom-nav a.active {
  color: var(--color-primary);
}

/* === 移动端侧边抽屉 === */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-bg-overlay);
  z-index: calc(var(--z-fixed) + 1);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.sidebar-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-sidebar {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 100%;
  background: var(--color-white);
  z-index: calc(var(--z-fixed) + 2);
  transform: translateX(-100%);
  transition: transform var(--transition-normal);
  overflow-y: auto;
  padding-bottom: var(--space-8);
}

.mobile-sidebar.open {
  transform: translateX(0);
}

/* === 移动端搜索弹窗 === */
.mobile-search-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-bg-overlay);
  z-index: calc(var(--z-fixed) + 3);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.mobile-search-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-search-panel {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--color-bg-card);
  z-index: calc(var(--z-fixed) + 4);
  padding: var(--space-3) var(--container-padding);
  box-shadow: var(--shadow-md);
  transform: translateY(-100%);
  transition: transform var(--transition-normal);
}

.mobile-search-panel.open {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transform: translateY(0);
}

.mobile-search-form {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
}

.mobile-search-icon {
  position: absolute;
  left: var(--space-4);
  color: var(--color-text-tertiary);
  font-size: var(--font-size-lg);
  pointer-events: none;
  flex-shrink: 0;
}

.mobile-search-form input {
  flex: 1;
  min-width: 0;
  width: 100%;
  padding: var(--space-3) var(--space-12) var(--space-3) var(--space-10);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-base);
  background: var(--color-white);
  color: var(--color-text-primary);
  outline: none;
  transition: all var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
}

.mobile-search-form input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.mobile-search-submit {
  position: absolute;
  right: var(--space-1);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.mobile-search-submit:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 2px 8px -2px rgba(166, 61, 47, 0.4);
}

.mobile-search-cancel {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  flex-shrink: 0;
  padding: var(--space-2) var(--space-5);
  transition: all var(--transition-fast);
}

.mobile-search-cancel:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* === 文章列表条目（简洁版） === */
.article-item-simple {
  transition: background var(--transition-fast);
}
.article-item-simple:hover {
  background: var(--color-bg-hover);
}
.article-item-simple:last-child {
  border-bottom: none !important;
}

/* === 模态弹窗 === */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: var(--z-fixed);
  align-items: center;
  justify-content: center;
}
.modal.active {
  display: flex;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  animation: fadeIn 0.2s ease;
}

.modal-content {
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  width: 90%;
  max-width: 460px;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp 0.25s ease;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-border-light);
}
.modal-header h3 {
  margin: 0;
  font-size: var(--font-size-lg);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text-tertiary);
  line-height: 1;
  padding: 0 var(--space-1);
}
.modal-close:hover { color: var(--color-text); }

.modal-body {
  padding: var(--space-6);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* ===== 登录/注册：tab 切换 + 第三方登录 ===== */
.auth-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-5);
}
.auth-tab {
  flex: 1;
  text-align: center;
  padding: var(--space-3) var(--space-2);
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  user-select: none;
}
.auth-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: var(--font-weight-medium);
}
.auth-tab-panel { display: none; }
.auth-tab-panel.active { display: block; }

/* 图标内嵌输入框（登录/注册） */
.auth-field {
  position: relative;
}
.auth-field .auth-field-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-tertiary);
  font-size: var(--font-size-lg);
  pointer-events: none;
  transition: color var(--transition-fast);
}
.auth-field input {
  width: 100%;
  padding: var(--space-3) var(--space-4) var(--space-3) calc(var(--space-4) + 28px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  font-size: var(--font-size-sm);
  background: var(--color-white);
  color: var(--color-text-primary);
  outline: none;
  transition: all var(--transition-fast);
}
.auth-field input::placeholder {
  color: var(--color-text-tertiary);
}
.auth-field input:hover {
  border-color: var(--color-gray-400);
}
.auth-field input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-bg);
}
.auth-field:focus-within .auth-field-icon {
  color: var(--color-primary);
}

/* 第三方登录分割线 */
.oauth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: var(--space-5) 0;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-xs);
}
.oauth-divider::before,
.oauth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.oauth-buttons {
  display: flex;
  gap: var(--space-3);
}
.oauth-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-white);
  color: var(--color-text-primary);
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}
.oauth-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.oauth-btn .oauth-icon { font-size: var(--font-size-lg); }
.oauth-btn-wechat .oauth-icon { color: #07c160; }
.oauth-btn-qq .oauth-icon { color: #12b7f5; }
.oauth-btn-alipay .oauth-icon { color: #1677ff; }
.oauth-btn-wechat:hover { border-color: #07c160; color: #07c160; }
.oauth-btn-qq:hover { border-color: #12b7f5; color: #12b7f5; }
.oauth-btn-alipay:hover { border-color: #1677ff; color: #1677ff; }

/* 短信验证码发送按钮 */
.sms-code-btn {
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 var(--space-4);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-xl);
  color: var(--color-primary);
  background: transparent;
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}
.sms-code-btn:hover:not(:disabled) { background: var(--color-primary); color: var(--color-white); }
.sms-code-btn:disabled {
  color: var(--color-text-tertiary);
  border-color: var(--color-border);
  cursor: not-allowed;
  background: var(--color-gray-50);
}

/* ===== 注册协议勾选 ===== */
.agreement-box {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: var(--space-1);
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  line-height: 1.7;
}
.agreement-box input[type="checkbox"] {
  margin-top: 3px;
  accent-color: var(--color-primary);
  cursor: pointer;
  flex-shrink: 0;
}
.agreement-link {
  color: var(--color-primary);
  cursor: pointer;
  text-decoration: none;
}
.agreement-link:hover {
  text-decoration: underline;
}

/* ===== 协议弹窗 ===== */
.agreement-modal-mask {
  position: fixed;
  inset: 0;
  background: var(--color-bg-overlay);
  z-index: var(--z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}
.agreement-modal-mask.open {
  display: flex;
}
.agreement-modal {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  max-width: 640px;
  width: 100%;
  max-height: 82vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
}
.agreement-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--color-border);
}
.agreement-modal-header h3 {
  font-size: var(--font-size-lg);
  font-family: var(--font-family-serif);
  font-weight: var(--font-weight-semibold);
}
.agreement-modal-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-xl);
  line-height: 1;
  padding: var(--space-1);
  transition: color var(--transition-fast);
}
.agreement-modal-close:hover {
  color: var(--color-text-primary);
}
.agreement-modal-body {
  padding: var(--space-5) var(--space-6);
  overflow-y: auto;
  font-size: var(--font-size-sm);
  line-height: 1.8;
  color: var(--color-text-primary);
}
.agreement-modal-body .agreement-meta {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-xs);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px dashed var(--color-border);
}
.agreement-modal-body h4 {
  font-size: var(--font-size-base);
  margin: var(--space-5) 0 var(--space-2);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
}
.agreement-modal-body h4:first-child {
  margin-top: 0;
}
.agreement-modal-body p {
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
}
.agreement-modal-body strong {
  color: var(--color-text-primary);
}
.agreement-modal-footer {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
}