/* ==================== 奥黛丽·赫本遗产基金会网站 - 自适应样式 ==================== */
/* 版本: 1.0.0 */
/* 设计策略: Mobile-First 响应式设计 */

/* ==================== CSS变量 - 设计令牌 ==================== */
:root {
  /* 主色调 */
  --color-primary: #5a9a9a;
  --color-primary-dark: #4a8a8a;
  --color-primary-light: #6aaaaa;

  /* 中性色 */
  --color-text-primary: #333;
  --color-text-secondary: #666;
  --color-text-muted: #888;
  --color-border: #d0d0d0;
  --color-bg-light: #f5f5f5;
  --color-bg-white: #fff;
  --color-year-diff: #e8e8e8;

  /* 间距 */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* 字体大小 - Mobile基础 */
  --font-size-title: 18px;
  --font-size-subtitle: 10px;
  --font-size-contact-label: 11px;
  --font-size-contact-value: 14px;
  --font-size-year: 40px;
  --font-size-year-mark: 18px;
  --font-size-enter: 14px;
  --font-size-footer: 11px;

  /* 容器宽度 */
  --content-max: 400px;
  --enter-image-max: 100%;

  /* 动画 */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease-in-out;
}

/* ==================== 全局样式重置 ==================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html, body {
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background-color: var(--color-bg-white);
}

/* ==================== 显示控制类 ==================== */
.mobile-only {
  display: flex !important;
}

.desktop-only {
  display: none !important;
}

/* ==================== 主容器 ==================== */
.container {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ==================== 页面容器 ==================== */
.page-container {
  position: relative;
  flex: 1;
  width: 100%;
  min-height: calc(100vh - 85px);
}

/* ==================== 页面通用样式 ==================== */
.page {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
  z-index: 1;
}

.page.active {
  opacity: 1;
  visibility: visible;
  z-index: 10;
}

/* ==================== 入口页面 - Mobile基础样式 ==================== */
#enter-page {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #000;
}

.enter-wrapper {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: 0 0 var(--space-lg) 0;
  overflow: hidden;
}

/* 人物图片区域 - Mobile全屏 */
.enter-image-section {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
  z-index: 1;
}

.enter-image-area {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: transform var(--transition-normal);
}

.enter-image-area:active {
  transform: scale(0.98);
}

.enter-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.9;
}

/* H5底部进入区域 - Mobile全面屏设计 */
.enter-footer-h5 {
  position: relative;
  padding: 8px 28px;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  flex-shrink: 0;
  margin-bottom: 80px;
  min-height: 36px;
  background-color: rgba(0, 0, 0, 0.25);
  border-radius: 4px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

.enter-footer-h5:active {
  background-color: rgba(0, 0, 0, 0.45);
  transform: scale(0.97);
}

.enter-footer-h5:active .enter-text-cn {
  letter-spacing: 5px;
}

/* Desktop/Tablet: 进入按钮区域 */
.enter-action-section {
  position: relative;
  padding: var(--space-sm) var(--space-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  flex-shrink: 0;
  margin-bottom: 80px;
  min-height: 44px;
  background-color: rgba(0, 0, 0, 0.35);
  border-radius: 4px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 移除 enter-action-section 的 mobile:active 样式，因为 mobile 端现在使用 enter-footer-h5 */

.enter-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) 0;
  background: transparent;
  border: none;
  cursor: pointer;
  position: relative;
}

.enter-text-cn {
  font-family: 'Times New Roman', 'PingFang SC', serif;
  font-size: var(--font-size-enter);
  font-weight: 300;
  color: #fff;
  letter-spacing: 4px;
  transition: all var(--transition-normal);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.enter-action-section:active .enter-text-cn {
  letter-spacing: 6px;
}

/* ==================== 统一页脚 - Mobile样式 ==================== */
.page-footer {
  width: 100%;
  padding: var(--space-md) var(--space-md) var(--space-lg);
  text-align: center;
  z-index: 100;
  flex-shrink: 0;
}

/* 入口页面页脚 - 透明背景 */
.page-container:has(#enter-page.active) + .page-footer {
  position: absolute;
  bottom: 0;
  left: 0;
  background-color: transparent;
  border-top: none;
}

.page-container:has(#enter-page.active) + .page-footer .copyright {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.8);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.page-container:has(#enter-page.active) + .page-footer .icp {
  font-size: 9px;
  color: rgba(255, 255, 255, 0.7);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.page-container:has(#enter-page.active) + .page-footer .icp a {
  color: rgba(255, 255, 255, 0.8);
}

/* 联系页面页脚 - 浅色背景 */
.page-container:has(#contact-page.active) + .page-footer {
  position: relative;
  background-color: var(--color-bg-light);
  border-top: 1px solid #e0e0e0;
}

.page-container:has(#contact-page.active) + .page-footer .copyright {
  font-size: var(--font-size-footer);
  color: #777;
  margin-bottom: var(--space-xs);
  letter-spacing: 0.5px;
}

.page-container:has(#contact-page.active) + .page-footer .icp {
  font-size: 10px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.page-container:has(#contact-page.active) + .page-footer .icp a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-normal);
}

.page-container:has(#contact-page.active) + .page-footer .icp a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

/* ==================== 联系页面 - Mobile基础样式 ==================== */
#contact-page {
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg-white);
  min-height: 100vh;
}

.contact-wrapper {
  flex: 1;
  width: 100%;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg-white);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
  padding: var(--space-lg) var(--space-md) var(--space-md);
  justify-content: center;
  min-height: calc(100vh - 85px);
}

/* 签名图片区域 - Mobile裁剪上半部分 */
.signature-area {
  width: 100%;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md) var(--space-sm);
  display: flex;
  justify-content: center;
}

.signature-image-wrapper {
  width: 100%;
  max-width: 300px;
  overflow: hidden;
}

.signature-image {
  width: 100%;
  height: auto;
  display: block;
  /* Mobile只显示上半部分 */
  clip-path: inset(0 0 35% 0);
  margin-bottom: -35%;
}

/* 标题区域 */
.estate-header {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--space-sm) var(--space-md);
  text-align: center;
}

.estate-title {
  font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: var(--font-size-title);
  font-weight: 500;
  color: var(--color-primary-dark);
  letter-spacing: 3px;
  margin-bottom: var(--space-xs);
  line-height: 1.3;
}

.estate-subtitle-en {
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: var(--font-size-subtitle);
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 2px;
  line-height: 1.3;
}

/* 中文联系信息 - Mobile纵向排列 */
.chinese-contact {
  width: 100%;
  max-width: var(--content-max);
  margin: var(--space-lg) auto;
  text-align: center;
  padding: 0 var(--space-md);
}

.contact-item-large {
  margin-bottom: var(--space-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

.contact-item-large:last-child {
  margin-bottom: 0;
}

.contact-label-large {
  font-size: var(--font-size-contact-label);
  color: var(--color-text-muted);
  letter-spacing: 2px;
  text-align: center;
  text-transform: uppercase;
}

.contact-value-large {
  font-size: var(--font-size-contact-value);
  color: var(--color-primary-dark);
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: all var(--transition-normal);
  font-weight: 500;
  text-align: center;
  line-height: 1.4;
  padding: var(--space-xs) var(--space-sm);
  border-radius: 4px;
  -webkit-tap-highlight-color: rgba(90, 154, 154, 0.2);
}

.contact-value-large:active {
  background-color: rgba(90, 154, 154, 0.1);
}

/* 纪念年份 - Mobile样式 */
.memorial-year {
  width: 100%;
  max-width: var(--content-max);
  margin: var(--space-lg) auto var(--space-xl);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  padding: 0 var(--space-md);
}

.year-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.line-left,
.line-right {
  flex: 1;
  height: 1px;
  background-color: var(--color-border);
  max-width: 50px;
}

.year-start,
.year-end {
  font-family: 'Times New Roman', Times, serif;
  font-size: var(--font-size-year-mark);
  font-weight: 400;
  color: var(--color-primary);
  letter-spacing: 1px;
}

.year-diff {
  font-family: 'Times New Roman', Times, serif;
  font-size: var(--font-size-year);
  font-weight: 300;
  color: var(--color-year-diff);
  letter-spacing: 1px;
  line-height: 1;
  margin: 0 4px;
  transition: color var(--transition-normal);
}

.memorial-year:active .year-diff {
  color: #d0d0d0;
}

/* ==================== 动画效果 ==================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page.active .enter-image-section,
.page.active .signature-area,
.page.active .estate-header,
.page.active .chinese-contact,
.page.active .memorial-year {
  animation: fadeIn 0.6s ease-out;
}

.page.active .enter-action-section {
  animation: fadeIn 0.8s ease-out 0.2s both;
}

/* ==================== 触摸优化 ==================== */
.enter-image-section,
.enter-action-section,
.memorial-year,
.contact-value-large {
  -webkit-tap-highlight-color: rgba(90, 154, 154, 0.2);
}

/* ==================== 小屏手机优化 (< 375px) ==================== */
@media screen and (max-width: 374px) {
  :root {
    --font-size-title: 16px;
    --font-size-contact-value: 13px;
    --font-size-year: 36px;
    --font-size-enter: 13px;
  }

  .enter-action-section {
    margin-bottom: 70px;
    padding: 6px 20px;
  }

  .signature-area {
    padding-top: var(--space-md);
  }

  .contact-item-large {
    margin-bottom: 12px;
  }
}

/* ==================== 大屏手机优化 (375px - 767px) ==================== */
@media screen and (min-width: 375px) and (max-width: 767px) {
  :root {
    --font-size-title: 19px;
    --font-size-contact-value: 15px;
    --font-size-year: 44px;
  }

  .enter-action-section {
    margin-bottom: 90px;
  }

  .signature-image-wrapper {
    max-width: 320px;
  }
}

/* ==================== Tablet断点 (768px - 1023px) ==================== */
@media screen and (min-width: 768px) {
  :root {
    --font-size-title: 22px;
    --font-size-subtitle: 12px;
    --font-size-contact-label: 13px;
    --font-size-contact-value: 17px;
    --font-size-year: 56px;
    --font-size-year-mark: 24px;
    --font-size-enter: 20px;
    --font-size-footer: 12px;
    --content-max: 600px;
  }

  .mobile-only {
    display: none !important;
  }

  .desktop-only {
    display: flex !important;
  }

  .desktop-only.inline {
    display: inline !important;
  }

  /* 入口页面 - Tablet样式 */
  .enter-wrapper {
    justify-content: center;
    padding: var(--space-xl);
  }

  .enter-image-section {
    position: relative;
    width: auto;
    height: auto;
    max-width: 95vw;
  }

  .enter-image-area {
    width: auto;
    max-width: 800px;
    height: auto;
  }

  .enter-image {
    width: 100%;
    height: auto;
    max-height: 65vh;
    object-fit: contain;
    border-radius: 4px;
  }

  .enter-action-section {
    position: relative;
    margin-bottom: 0;
    margin-top: var(--space-lg);
    background-color: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    flex-direction: column;
    padding: var(--space-md) var(--space-xl);
  }

  .enter-action-section:hover {
    transform: none;
  }

  .enter-action-section:hover .enter-button::after {
    width: 100px;
    opacity: 1;
  }

  .enter-action-section:hover .enter-text-cn {
    color: var(--color-primary-dark);
  }

  .enter-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-md);
    width: 100%;
    max-width: 300px;
  }

  .divider-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, #c0c0c0, transparent);
  }

  .divider-icon {
    font-size: 14px;
    color: var(--color-primary);
    opacity: 0.5;
  }

  .enter-button {
    padding: var(--space-sm) 0;
  }

  .enter-button::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 1px;
    background-color: var(--color-primary);
    transition: all var(--transition-normal);
    opacity: 0.6;
  }

  .enter-text-cn {
    font-size: var(--font-size-enter);
    color: var(--color-primary);
    letter-spacing: 8px;
    text-shadow: none;
  }

  .enter-text-en {
    font-size: 10px;
    color: #aaa;
    letter-spacing: 3px;
  }

  /* 页脚 - Tablet */
  .page-container:has(#enter-page.active) + .page-footer {
    position: relative;
    background-color: #000;
  }

  /* 联系页面 - Tablet */
  .contact-wrapper {
    padding: var(--space-2xl) var(--space-xl);
  }

  .signature-area {
    padding: var(--space-2xl) var(--space-xl) var(--space-lg);
  }

  .signature-image-wrapper {
    max-width: 450px;
  }

  .signature-image {
    clip-path: none;
    margin-bottom: 0;
  }

  .estate-header {
    padding: var(--space-md) var(--space-xl);
  }

  .estate-title {
    letter-spacing: 5px;
    margin-bottom: var(--space-sm);
  }

  .estate-subtitle-en {
    letter-spacing: 3px;
  }

  .chinese-contact {
    margin: var(--space-xl) auto;
  }

  .contact-item-large {
    margin-bottom: var(--space-lg);
    gap: var(--space-sm);
  }

  .contact-label-large {
    letter-spacing: 3px;
  }

  .contact-value-large:hover {
    color: var(--color-primary-dark);
  }

  .memorial-year {
    margin: var(--space-xl) auto var(--space-2xl);
  }

  .year-line {
    gap: var(--space-md);
  }

  .line-left,
  .line-right {
    max-width: 80px;
  }

  .memorial-year:hover .year-diff {
    color: #d0d0d0;
  }
}

/* ==================== Desktop断点 (1024px - 1439px) ==================== */
@media screen and (min-width: 1024px) {
  :root {
    --font-size-title: 24px;
    --font-size-subtitle: 13px;
    --font-size-contact-label: 14px;
    --font-size-contact-value: 16px;
    --font-size-year: 72px;
    --font-size-year-mark: 28px;
    --font-size-enter: 28px;
    --font-size-footer: 13px;
    --content-max: 800px;
  }

  .mobile-only {
    display: none !important;
  }

  .desktop-only {
    display: flex !important;
  }

  .page-container {
    min-height: calc(100vh - 95px);
  }

  /* 入口页面 - Desktop */
  .enter-wrapper {
    padding: var(--space-2xl) 40px;
  }

  .enter-image-section {
    max-width: 90vw;
  }

  .enter-image-area {
    max-width: 1200px;
  }

  .enter-image {
    max-height: 70vh;
  }

  .enter-action-section {
    margin-top: var(--space-xl);
    padding: var(--space-md) 40px;
  }

  .enter-divider {
    max-width: 350px;
    margin-bottom: var(--space-lg);
  }

  .enter-text-cn {
    letter-spacing: 12px;
    text-indent: 12px;
  }

  .enter-text-en {
    font-size: 11px;
    letter-spacing: 4px;
  }

  .enter-button::after {
    width: 76px;
  }

  .enter-action-section:hover .enter-button::after {
    width: 120px;
  }

  /* 联系页面 - Desktop */
  .contact-wrapper {
    padding: 40px var(--space-xl) var(--space-xl);
    min-height: calc(100vh - 95px);
  }

  .signature-area {
    padding: 40px 40px var(--space-lg);
    margin-bottom: var(--space-md);
  }

  .signature-image-wrapper {
    max-width: 700px;
  }

  .estate-header {
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
  }

  .estate-title {
    letter-spacing: 5px;
    margin-bottom: var(--space-sm);
  }

  .chinese-contact {
    margin: var(--space-xl) auto;
    padding: 0;
  }

  /* Desktop: 联系方式横向排列 */
  .contact-item-large {
    flex-direction: row;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-md);
  }

  .contact-label-large {
    text-align: right;
    min-width: 80px;
  }

  .contact-value-large {
    text-align: left;
  }

  .memorial-year {
    margin: var(--space-lg) auto var(--space-xl);
  }

  .year-line {
    gap: var(--space-lg);
  }

  .line-left,
  .line-right {
    max-width: 150px;
  }

  .year-diff {
    margin: 0 var(--space-xs);
  }

  /* 页脚 - Desktop */
  .page-footer {
    padding: var(--space-lg) var(--space-xl) var(--space-xl);
  }
}

/* ==================== Large断点 (>= 1440px) ==================== */
@media screen and (min-width: 1440px) {
  :root {
    --font-size-title: 26px;
    --font-size-subtitle: 14px;
    --font-size-contact-value: 17px;
    --font-size-year: 80px;
    --font-size-year-mark: 30px;
    --font-size-enter: 30px;
  }

  .mobile-only {
    display: none !important;
  }

  .desktop-only {
    display: flex !important;
  }

  .enter-image-area {
    max-width: 1400px;
  }

  .signature-image-wrapper {
    max-width: 800px;
  }

  .line-left,
  .line-right {
    max-width: 200px;
  }
}

/* ==================== 横屏手机优化 - 全屏图片+底部按钮 ==================== */
@media screen and (max-height: 500px) and (orientation: landscape) {
  .enter-wrapper {
    flex-direction: column;
    padding: 0 0 var(--space-md) 0;
    justify-content: flex-end;
  }

  .enter-image-section {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
  }

  .enter-image {
    object-fit: cover;
  }

  /* 横屏时进入按钮保持在底部 */
  .enter-footer-h5 {
    position: relative;
    margin-bottom: 60px;
    margin-top: 0;
    z-index: 2;
    background-color: rgba(0, 0, 0, 0.25);
  }

  /* 横屏时按钮文字统一为白色 */
  .enter-footer-h5 .enter-text-cn {
    color: #fff;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  }

  .contact-wrapper {
    padding: var(--space-md);
  }

  .signature-area {
    padding: var(--space-sm) var(--space-md);
  }

  .signature-image-wrapper {
    max-width: 200px;
  }

  .chinese-contact {
    margin: var(--space-sm) auto;
  }

  .contact-item-large {
    margin-bottom: var(--space-sm);
  }
}

/* ==================== Tablet横屏优化 (768px-1023px 且横屏) ==================== */
@media screen and (min-width: 768px) and (max-width: 1023px) and (orientation: landscape) {
  /* 覆盖Tablet断点的样式，横屏时恢复全屏 */
  .enter-wrapper {
    justify-content: flex-end;
    padding: 0 0 var(--space-md) 0;
  }

  .enter-image-section {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    z-index: 1;
  }

  .enter-image-area {
    width: 100%;
    max-width: none;
    height: 100%;
  }

  .enter-image {
    width: 100%;
    height: 100%;
    max-height: none;
    object-fit: cover;
    border-radius: 0;
  }

  /* 横屏时显示移动端按钮，隐藏桌面端按钮 */
  .mobile-only {
    display: flex !important;
  }

  .desktop-only {
    display: none !important;
  }

  .enter-footer-h5 {
    position: relative;
    margin-bottom: 60px;
    margin-top: 0;
    z-index: 2;
    background-color: rgba(0, 0, 0, 0.25);
  }

  /* 横屏时按钮文字颜色统一为白色 */
  .enter-footer-h5 .enter-text-cn {
    color: #fff;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  }
}

/* ==================== 打印样式 ==================== */
@media print {
  .enter-action-section,
  .memorial-year {
    display: none !important;
  }

  .page {
    position: relative;
    opacity: 1;
    visibility: visible;
  }

  #contact-page {
    page-break-before: always;
  }
}

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

/* ==================== 深色模式支持 ==================== */
@media (prefers-color-scheme: dark) {
  /* 保持网站原有设计，不强制深色模式 */
}