/**
 * 组件样式
 * 卡片、按钮、导航、文章卡片等组件的样式定义
 */

/* ============================================
   卡片组件
   ============================================ */

/* 基础卡片 - 杂志风格 */
.card {
  background-color: var(--color-paper-primary);
  border: var(--border-thin) solid var(--color-paper-tertiary);
  padding: var(--space-5);
  transition: all var(--duration-normal) var(--ease-out);
}

.card:hover {
  border-color: var(--color-accent-rust);
  box-shadow: var(--shadow-lg);
}

/* 文章卡片 - 杂志封面风格 */
.post-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-paper-primary);
  overflow: hidden;
  position: relative;
}

.post-card__image {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}

.post-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.post-card:hover .post-card__image img {
  transform: scale(1.05);
}

/* 图片上的分类标签 */
.post-card__category {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-1) var(--space-3);
  background-color: var(--color-accent-rust);
  color: white;
}

.post-card__content {
  padding: var(--space-4);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.post-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: var(--leading-snug);
  margin-bottom: var(--space-3);
  color: var(--color-ink-primary);
}

.post-card__title a {
  color: inherit;
  border-bottom: none;
}

.post-card__title a:hover {
  color: var(--color-accent-rust);
}

.post-card__excerpt {
  font-size: var(--text-sm);
  color: var(--color-ink-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
  flex: 1;
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-ink-tertiary);
  font-family: var(--font-mono);
}

.post-card__meta time::before {
  content: '—';
  margin-right: var(--space-2);
  color: var(--color-paper-tertiary);
}

/* 特色文章卡片 - 大图展示 */
.post-card--featured {
  grid-column: span 2;
}

.post-card--featured .post-card__image {
  aspect-ratio: 21 / 9;
}

.post-card--featured .post-card__title {
  font-size: var(--text-xl);
}

.post-card--featured .post-card__content {
  padding: var(--space-6);
}

/* 横向卡片布局 */
.post-card--horizontal {
  flex-direction: row;
}

.post-card--horizontal .post-card__image {
  width: 40%;
  aspect-ratio: 4 / 3;
}

.post-card--horizontal .post-card__content {
  width: 60%;
}

/* 迷你卡片 - 侧边栏用 */
.post-card--mini {
  flex-direction: row;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  border-bottom: var(--border-thin) solid var(--color-paper-tertiary);
}

.post-card--mini:last-child {
  border-bottom: none;
}

.post-card--mini .post-card__image {
  width: 80px;
  height: 60px;
  aspect-ratio: auto;
  flex-shrink: 0;
}

.post-card--mini .post-card__content {
  padding: 0;
}

.post-card--mini .post-card__title {
  font-size: var(--text-sm);
  margin-bottom: var(--space-1);
}

.post-card--mini .post-card__meta {
  font-size: var(--text-xs);
}

/* ============================================
   导航组件
   ============================================ */

/* 主导航 */
.main-nav {
  background-color: var(--color-paper-primary);
  border-bottom: var(--border-thin) solid var(--color-paper-tertiary);
  position: sticky;
  top: 0;
  z-index: 100;
}

.main-nav__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

/* 站点 Logo */
.site-logo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-ink-primary);
  text-decoration: none;
  border-bottom: none;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.site-logo:hover {
  color: var(--color-accent-rust);
}

.site-logo__icon {
  width: 32px;
  height: 32px;
  background-color: var(--color-accent-rust);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  border-radius: var(--radius-sm);
}

/* 导航菜单 */
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu__item {
  position: relative;
}

.nav-menu__link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-ink-secondary);
  text-decoration: none;
  border-bottom: none;
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav-menu__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent-rust);
  transition: width var(--duration-normal) var(--ease-out);
}

.nav-menu__link:hover,
.nav-menu__link.active {
  color: var(--color-ink-primary);
}

.nav-menu__link:hover::after,
.nav-menu__link.active::after {
  width: 100%;
}

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-2);
  cursor: pointer;
}

/* 搜索按钮 */
.search-toggle {
  background: none;
  border: none;
  padding: var(--space-2);
  cursor: pointer;
  color: var(--color-ink-secondary);
  transition: color var(--duration-fast) var(--ease-out);
}

.search-toggle:hover {
  color: var(--color-accent-rust);
}

/* ============================================
   Hero 区域
   ============================================ */

.hero {
  padding: var(--space-12) 0;
  position: relative;
  overflow: hidden;
}

.hero__content {
  max-width: var(--content-narrow);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 700;
  line-height: var(--leading-tight);
  margin-bottom: var(--space-6);
  color: var(--color-ink-primary);
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-ink-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.hero__cta {
  display: flex;
  gap: var(--space-4);
}

/* 装饰性背景 */
.hero__decoration {
  position: absolute;
  top: 50%;
  right: -10%;
  transform: translateY(-50%);
  width: 500px;
  height: 500px;
  opacity: 0.05;
  pointer-events: none;
}

.hero__decoration svg {
  width: 100%;
  height: 100%;
}

/* ============================================
   文章列表布局
   ============================================ */

/* 网格布局 */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
}

/* 杂志风格网格 - 非对称 */
.post-grid--magazine {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-5);
}

.post-grid--magazine .post-card:nth-child(1) {
  grid-column: span 7;
  grid-row: span 2;
}

.post-grid--magazine .post-card:nth-child(2) {
  grid-column: span 5;
}

.post-grid--magazine .post-card:nth-child(3) {
  grid-column: span 5;
}

.post-grid--magazine .post-card:nth-child(n+4) {
  grid-column: span 4;
}

/* ============================================
   侧边栏组件
   ============================================ */

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
}

.sidebar__section {
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: var(--border-thin) solid var(--color-paper-tertiary);
}

.sidebar__section:last-child {
  border-bottom: none;
}

.sidebar__title {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-ink-tertiary);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: var(--border-thick) solid var(--color-accent-rust);
  display: inline-block;
}

/* 分类列表 */
.category-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.category-list__item {
  margin-bottom: var(--space-2);
}

.category-list__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  color: var(--color-ink-secondary);
  text-decoration: none;
  border-bottom: none;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
}

.category-list__link:hover {
  background-color: var(--color-paper-secondary);
  color: var(--color-ink-primary);
}

.category-list__count {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-tertiary);
  background-color: var(--color-paper-tertiary);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
}

/* 标签云 */
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  padding: var(--space-1) var(--space-3);
  background-color: var(--color-paper-secondary);
  color: var(--color-ink-secondary);
  text-decoration: none;
  border-bottom: none;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
}

.tag:hover {
  background-color: var(--color-accent-rust);
  color: white;
}

.tag--large {
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-4);
}

/* ============================================
   文章详情页组件
   ============================================ */

.article-header {
  text-align: center;
  padding: var(--space-10) 0 var(--space-8);
  max-width: var(--content-narrow);
  margin: 0 auto;
}

.article-header__category {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent-rust);
  margin-bottom: var(--space-4);
}

.article-header__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: var(--leading-tight);
  margin-bottom: var(--space-5);
  color: var(--color-ink-primary);
}

.article-header__meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-ink-tertiary);
}

.article-header__author {
  font-weight: 600;
  color: var(--color-ink-secondary);
}

.article-header__date {
  font-family: var(--font-mono);
}

.article-header__reading-time::before {
  content: '•';
  margin-right: var(--space-4);
  color: var(--color-paper-tertiary);
}

/* 文章封面图 */
.article-cover {
  width: 100%;
  margin-bottom: var(--space-8);
  position: relative;
}

.article-cover img {
  width: 100%;
  height: auto;
  max-height: 500px;
  object-fit: cover;
}

.article-cover__caption {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-ink-tertiary);
  margin-top: var(--space-3);
  font-style: italic;
}

/* 文章内容 */
.article-content {
  max-width: var(--content-narrow);
  margin: 0 auto;
}

/* 文章底部 */
.article-footer {
  max-width: var(--content-narrow);
  margin: var(--space-10) auto 0;
  padding-top: var(--space-6);
  border-top: var(--border-thin) solid var(--color-paper-tertiary);
}

.article-footer__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.article-footer__share {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.article-footer__share-label {
  font-size: var(--text-sm);
  color: var(--color-ink-tertiary);
}

/* ============================================
   分页组件
   ============================================ */

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin: var(--space-10) 0;
}

.pagination__link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-secondary);
  text-decoration: none;
  border: var(--border-thin) solid var(--color-paper-tertiary);
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast) var(--ease-out);
}

.pagination__link:hover {
  border-color: var(--color-accent-rust);
  color: var(--color-accent-rust);
}

.pagination__link.active {
  background-color: var(--color-accent-rust);
  border-color: var(--color-accent-rust);
  color: white;
}

.pagination__link--prev,
.pagination__link--next {
  padding: 0 var(--space-4);
}

/* ============================================
   Footer 组件
   ============================================ */

.footer {
  background-color: var(--color-ink-primary);
  color: var(--color-paper-primary);
  padding: var(--space-10) 0 var(--space-6);
  margin-top: var(--space-12);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

.footer__brand {
  max-width: 300px;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-paper-primary);
  margin-bottom: var(--space-4);
}

.footer__description {
  font-size: var(--text-sm);
  color: var(--color-ink-tertiary);
  line-height: var(--leading-relaxed);
}

.footer__heading {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-paper-primary);
  margin-bottom: var(--space-4);
}

.footer__links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer__link {
  display: block;
  padding: var(--space-1) 0;
  color: var(--color-ink-tertiary);
  text-decoration: none;
  border-bottom: none;
  font-size: var(--text-sm);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer__link:hover {
  color: var(--color-accent-rust-light);
}

.footer__bottom {
  padding-top: var(--space-6);
  border-top: var(--border-thin) solid var(--color-ink-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__copyright {
  font-size: var(--text-xs);
  color: var(--color-ink-tertiary);
}

.footer__social {
  display: flex;
  gap: var(--space-4);
}

.footer__social-link {
  color: var(--color-ink-tertiary);
  border-bottom: none;
  transition: color var(--duration-fast) var(--ease-out);
}

.footer__social-link:hover {
  color: var(--color-accent-rust-light);
}

/* ============================================
   阅读进度条
   ============================================ */

.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent-rust), var(--color-accent-bronze));
  z-index: 1000;
  transition: width 0.1s linear;
}

/* 暗黑模式下使用更亮的渐变色 */
@media (prefers-color-scheme: dark) {
  .reading-progress {
    background: linear-gradient(90deg, var(--color-accent-rust-light), var(--color-accent-gold));
  }
}

[data-theme="dark"] .reading-progress {
  background: linear-gradient(90deg, var(--color-accent-rust-light), var(--color-accent-gold));
}

/* ============================================
   搜索组件
   ============================================ */

.search-modal {
  position: fixed;
  inset: 0;
  background-color: rgba(26, 31, 46, 0.95);
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.search-modal.active {
  opacity: 1;
  visibility: visible;
}

.search-modal__container {
  width: 90%;
  max-width: 700px;
}

.search-modal__input {
  width: 100%;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  padding: var(--space-4) 0;
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--color-ink-tertiary);
  color: var(--color-paper-primary);
  outline: none;
  transition: border-color var(--duration-fast) var(--ease-out);
}

.search-modal__input:focus {
  border-color: var(--color-accent-rust);
}

.search-modal__input::placeholder {
  color: var(--color-ink-tertiary);
}

.search-modal__close {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  background: none;
  border: none;
  color: var(--color-ink-tertiary);
  cursor: pointer;
  font-size: var(--text-xl);
  transition: color var(--duration-fast) var(--ease-out);
}

.search-modal__close:hover {
  color: var(--color-paper-primary);
}

/* ============================================
   主题切换
   ============================================ */

.theme-toggle {
  background: none;
  border: var(--border-thin) solid var(--color-paper-tertiary);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  cursor: pointer;
  color: var(--color-ink-secondary);
  transition: all var(--duration-fast) var(--ease-out);
}

.theme-toggle:hover {
  border-color: var(--color-accent-rust);
  color: var(--color-accent-rust);
}

/* ============================================
   广告位容器
   ============================================ */

.ad-container {
  background-color: var(--color-paper-secondary);
  border: var(--border-thin) dashed var(--color-paper-tertiary);
  padding: var(--space-4);
  text-align: center;
  margin: var(--space-6) 0;
}

.ad-container__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-2);
}

.ad-container--sidebar {
  margin: var(--space-4) 0;
}

.ad-container--in-article {
  float: right;
  margin: var(--space-4) 0 var(--space-4) var(--space-4);
  max-width: 300px;
}

/* ============================================
   响应式调整
   断点值与 design-system.css 保持一致:
   --breakpoint-sm: 480px
   --breakpoint-md: 768px
   --breakpoint-lg: 1024px
   --breakpoint-xl: 1440px
   ============================================ */

@media (max-width: 1024px) {
  .sidebar {
    width: 100%;
    margin-top: var(--space-8);
  }

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

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-paper-primary);
    flex-direction: column;
    padding: var(--space-4);
    border-bottom: var(--border-thin) solid var(--color-paper-tertiary);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.active {
    display: flex;
  }

  .post-grid--magazine {
    grid-template-columns: 1fr;
  }

  .post-grid--magazine .post-card:nth-child(n) {
    grid-column: span 1;
    grid-row: span 1;
  }

  .post-card--horizontal {
    flex-direction: column;
  }

  .post-card--horizontal .post-card__image,
  .post-card--horizontal .post-card__content {
    width: 100%;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }

  .ad-container--in-article {
    float: none;
    margin: var(--space-4) 0;
    max-width: 100%;
  }
}

/* ============================================
   动效系统 - 编辑工匠精神
   ============================================ */

/* 页面加载淡入 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* 打字机效果 - 模拟老式打字机 */
@keyframes typewriter {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* 纸张飘落效果 */
@keyframes paperFloat {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-10px) rotate(2deg);
  }
}

/* 墨迹扩散 */
@keyframes inkSpread {
  from {
    transform: scale(0);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

/* 实用动画类 */
.animate-fade-in {
  animation: fadeIn 0.6s var(--ease-out) forwards;
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s var(--ease-out) forwards;
}

/* 交错动画 - 用于列表项 */
.animate-stagger > * {
  opacity: 0;
  animation: fadeInUp 0.5s var(--ease-out) forwards;
}

.animate-stagger > *:nth-child(1) { animation-delay: 0.1s; }
.animate-stagger > *:nth-child(2) { animation-delay: 0.2s; }
.animate-stagger > *:nth-child(3) { animation-delay: 0.3s; }
.animate-stagger > *:nth-child(4) { animation-delay: 0.4s; }
.animate-stagger > *:nth-child(5) { animation-delay: 0.5s; }
.animate-stagger > *:nth-child(6) { animation-delay: 0.6s; }

/* 卡片悬停动效 */
.card-hover-lift {
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.card-hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* 图片缩放悬停 */
.image-zoom {
  overflow: hidden;
}

.image-zoom img {
  transition: transform var(--duration-slow) var(--ease-out);
}

.image-zoom:hover img {
  transform: scale(1.05);
}

/* 下划线滑入效果 */
.underline-slide {
  position: relative;
}

.underline-slide::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent-rust);
  transition: width var(--duration-normal) var(--ease-out);
}

.underline-slide:hover::after {
  width: 100%;
}

/* 按钮按压效果 */
.btn-press {
  transition: transform var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}

.btn-press:active {
  transform: translateY(2px);
  box-shadow: var(--shadow-sm);
}

/* 打印机动效 - 用于标题 */
.typewriter-text {
  overflow: hidden;
  white-space: nowrap;
  animation: typewriter 2s steps(40, end);
}

/* 光标闪烁 */
.cursor-blink::after {
  content: '|';
  animation: blink 1s infinite;
  color: var(--color-accent-rust);
}

/* 纸张纹理背景 */
.paper-texture {
  background-image:
    radial-gradient(ellipse at 20% 30%, rgba(196, 92, 62, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(139, 105, 20, 0.02) 0%, transparent 50%);
  background-attachment: fixed;
}

/* 淡化滚动条容器 */
.scroll-fade {
  mask-image: linear-gradient(to bottom, black 90%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 90%, transparent 100%);
}

/* 聚焦环动画 */
@keyframes focusRing {
  0% { box-shadow: 0 0 0 0 rgba(196, 92, 62, 0.4); }
  50% { box-shadow: 0 0 0 4px rgba(196, 92, 62, 0.2); }
  100% { box-shadow: 0 0 0 0 rgba(196, 92, 62, 0); }
}

.focus-ring:focus {
  animation: focusRing 0.3s var(--ease-out);
}

/* 滚动触发动画的基础状态 */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* 导航栏滚动效果 */
.nav-scroll {
  transition: background-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.nav-scroll.scrolled {
  background-color: var(--color-paper-primary);
  box-shadow: var(--shadow-md);
}

/* 暗黑模式过渡 */
.theme-transition {
  transition: background-color var(--duration-slow) var(--ease-out),
              color var(--duration-slow) var(--ease-out),
              border-color var(--duration-slow) var(--ease-out);
}

/* 加载动画 - 旋转 */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.animate-spin {
  animation: spin 1s linear infinite;
}

/* 脉冲效果 */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.animate-pulse {
  animation: pulse 2s var(--ease-in-out) infinite;
}

/* 弹跳效果 */
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.animate-bounce {
  animation: bounce 2s var(--ease-in-out) infinite;
}

/* 摇晃效果 - 用于错误提示 */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

.animate-shake {
  animation: shake 0.3s var(--ease-out);
}

/* 墨水涟漪效果 */
.ink-ripple {
  position: relative;
  overflow: hidden;
}

.ink-ripple::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background-color: rgba(196, 92, 62, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s var(--ease-out), height 0.6s var(--ease-out);
}

.ink-ripple:hover::before {
  width: 200%;
  height: 200%;
}

/* 减少动画偏好支持 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}