/* =========================================
   设计令牌
   ========================================= */
:root {
  /* 颜色系统 */
  --bg-dock: rgba(255, 255, 255, 0.4);
  --bg-card: rgba(255, 255, 255, 0.35);
  --bg-button: rgba(255, 255, 255, 0.4);
  --bg-gallery: rgba(255, 255, 255, 0.4);
  --bg-hover: rgba(0, 0, 0, 0.05);
  --bg-active: rgba(0, 0, 0, 0.1);
  --bg-main: rgba(255, 255, 255, 0.25);

  /* 边框 */
  --border-glass: 2px solid rgba(255, 255, 255, 0.3);
  --border-light: 2px solid rgba(255, 255, 255, 0.5);

  /* 阴影 */
  --shadow-sm: 0 5px 10px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 7px 20px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
  --shadow-xxl: 0 20px 40px rgba(0, 0, 0, 0.1);
  --shadow-inset: inset 0 4px 10px rgba(0, 0, 0, 0.1);

  /* 圆角 */
  --radius-sm: 20px;
  --radius-md: 30px;
  --radius-lg: 40px;
  --radius-xl: 60px;
  --radius-max: 75px;
  --radius-pill: 9999px;

  /* 动画时长 */
  --time-fast: 0.15s;
  --time-normal: 0.3s;
  --time-slow: 0.8s;

  /* 文字颜色 */
  --text-primary: #333;
  --text-secondary: #666;

  /* 主题色 */
  --color-org: #00b351;
  --color-gld: #64acff;
  --color-ldc: #ffcc66;

  /* 功能色 */
  --color-selection: rgba(171, 138, 255, 0.35);
  --color-divider: rgba(0, 0, 0, 0.2);

  /* 渐变 */
  --gradient-page: linear-gradient(135deg, #D3E7FF 0%, #EAE2FF 100%);
  --gradient-wallpaper: linear-gradient(135deg, #e8f4ff 0%, #d7e4ff 50%, #e8fffe 100%);

  /* 布局 */
  --header-height: 80px;
  --content-max-width: 1300px;
}

/* =========================================
   基础重置
   ========================================= */

/* HarmonyOS Sans SC：优先使用本地已安装字体，否则从 jsDelivr npm CDN 加载 woff2 */
@font-face {
    font-family: "HarmonyOS Sans SC";
    src: local("HarmonyOS Sans SC Light"),
         url("https://cdn.jsdelivr.net/npm/@ayahub/webfont-harmony-sans-sc@1.0.0/fonts/HarmonyOS_Sans_SC_Light.woff2") format("woff2");
    font-weight: 300;
    font-display: swap;
}
@font-face {
    font-family: "HarmonyOS Sans SC";
    src: local("HarmonyOS Sans SC Regular"), local("HarmonyOS Sans SC"),
         url("https://cdn.jsdelivr.net/npm/@ayahub/webfont-harmony-sans-sc@1.0.0/fonts/HarmonyOS_Sans_SC_Regular.woff2") format("woff2");
    font-weight: 400;
    font-display: swap;
}
@font-face {
    font-family: "HarmonyOS Sans SC";
    src: local("HarmonyOS Sans SC Medium"),
         url("https://cdn.jsdelivr.net/npm/@ayahub/webfont-harmony-sans-sc@1.0.0/fonts/HarmonyOS_Sans_SC_Medium.woff2") format("woff2");
    font-weight: 500;
    font-display: swap;
}
@font-face {
    font-family: "HarmonyOS Sans SC";
    src: local("HarmonyOS Sans SC Bold"),
         url("https://cdn.jsdelivr.net/npm/@ayahub/webfont-harmony-sans-sc@1.0.0/fonts/HarmonyOS_Sans_SC_Bold.woff2") format("woff2");
    font-weight: 700;
    font-display: swap;
}

* {
  box-sizing: border-box;
}

html {
  zoom: 90%;
}

body {
  margin: 0;
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--gradient-page);
  background-attachment: fixed;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  opacity: 0;
  transition: opacity 0.15s ease;
}

::selection {
  background: var(--color-selection);
  color: inherit;
}

::-moz-selection {
  background: var(--color-selection);
  color: inherit;
}

img {
  -webkit-user-drag: none;
  user-select: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  border: none;
  background: none;
  font-family: inherit;
  cursor: pointer;
}

/* =========================================
   壁纸层 - 动态渐变光斑（视差滚动）
   ========================================= */
.wallpaper-layer {
  --blob1-x: 48%;
  --blob1-y: 28%;
  --blob2-x: 52%;
  --blob2-y: 32%;
  --blob3-x: 45%;
  --blob3-y: 25%;
  --blob4-x: 55%;
  --blob4-y: 30%;
  --blob-scale: 0.7;
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: visible;
  background: var(--gradient-wallpaper);
}

.wallpaper-layer::before,
.wallpaper-layer::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  will-change: transform;
  transition: none;
}

.wallpaper-layer::before {
  width: 65vmax;
  height: 65vmax;
  background: radial-gradient(circle, rgba(45, 136, 240, 0.45) 0%, rgba(45, 136, 240, 0.15) 45%, transparent 65%);
  top: var(--blob1-y);
  left: var(--blob1-x);
  transform: translate3d(-50%, -50%, 0) scale(var(--blob-scale));
}

.wallpaper-layer::after {
  width: 60vmax;
  height: 60vmax;
  background: radial-gradient(circle, rgba(171, 138, 255, 0.45) 0%, rgba(171, 138, 255, 0.15) 45%, transparent 65%);
  top: var(--blob2-y);
  left: var(--blob2-x);
  transform: translate3d(-50%, -50%, 0) scale(var(--blob-scale));
}

.wallpaper-layer .blob {
  position: absolute;
  border-radius: 50%;
  will-change: transform;
  transition: none;
}

.wallpaper-layer .blob-1 {
  width: 40vmax;
  height: 40vmax;
  background: radial-gradient(circle, rgba(100, 194, 220, 0.4) 0%, rgba(100, 194, 220, 0.12) 40%, transparent 60%);
  top: var(--blob3-y);
  left: var(--blob3-x);
  transform: translate3d(-50%, -50%, 0) scale(var(--blob-scale));
}

.wallpaper-layer .blob-2 {
  width: 35vmax;
  height: 35vmax;
  background: radial-gradient(circle, rgba(140, 200, 255, 0.4) 0%, rgba(140, 200, 255, 0.12) 40%, transparent 60%);
  top: var(--blob4-y);
  left: var(--blob4-x);
  transform: translate3d(-50%, -50%, 0) scale(var(--blob-scale));
}

/* =========================================
   玻璃态效果
   ========================================= */

/* 统一的磨砂玻璃基础样式 */
.glass-effect {
  background-color: var(--bg-dock);
  backdrop-filter: saturate(150%) blur(8px);
  -webkit-backdrop-filter: saturate(150%) blur(8px);
}

header,
.dock,
.dock-tooltip,
.dock button {
  background-color: var(--bg-dock);
  backdrop-filter: saturate(150%) blur(8px);
  -webkit-backdrop-filter: saturate(150%) blur(8px);
  transition: transform var(--time-normal) ease;
}

.card {
  background-color: var(--bg-card);
  transition: transform var(--time-normal) ease;
}

/* =========================================
   布局框架
   ========================================= */

/* 页头 */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 10px 0;
  z-index: 20;
  text-align: center;
  box-shadow: var(--shadow-md);
  border: var(--border-glass);
}

/* 主内容区 */
main {
  width: var(--content-max-width);
  max-width: 90%;
  margin: 120px auto 60px;
  padding: 20px 60px;
  display: flex;
  flex-direction: column;
  gap: 0;
  background-color: var(--bg-main);
  border-radius: var(--radius-max);
  box-shadow: var(--shadow-xxl);
  border: var(--border-glass);
}

/* Logo */
.logo-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.logo-group img {
  height: 40px;
}

/* =========================================
   Dock 侧边栏
   ========================================= */
.dock {
  position: fixed;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px;
  border-radius: var(--radius-xl);
  border: var(--border-glass);
  box-shadow: var(--shadow-md);
  z-index: 10;
}

.dock-item {
  position: relative;
}

.dock-divider {
  border: none;
  height: 2px;
  background: var(--color-divider);
  margin: 10px 0;
}

/* =========================================
   按钮系统
   ========================================= */

/* Dock 按钮 */
.dock button {
  width: 50px;
  height: 50px;
  padding: 0;
  border-radius: 50%;
  border: var(--border-glass);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition:
    transform var(--time-fast) ease,
    background-color var(--time-fast) ease;
}

.dock button:hover {
  transform: scale(1.08);
  background-color: var(--bg-active);
}

.dock button:active {
  transform: scale(0.85);
}

.dock button img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

/* Dock 提示框 */
.dock-tooltip {
  position: absolute;
  right: 100%;
  top: 50%;
  margin-right: 20px;
  padding: 10px 13px;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-50%);
  transition:
    opacity var(--time-normal) ease,
    background-color var(--time-normal) ease;
}

.dock-item:hover .dock-tooltip {
  opacity: 1;
}

/* 小圆按钮 */
.pill-button {
  display: inline-block;
  min-width: 100px;
  margin: 5px;
  padding: 15px 25px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  color: var(--text-primary);
  text-align: center;
  text-decoration: none;
  background-color: var(--bg-button);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  user-select: none;
  transition:
    transform var(--time-fast) ease,
    background-color var(--time-fast) ease;
}

.pill-button:hover {
  transform: scale(1.08);
  background-color: var(--bg-hover);
}

.pill-button:active {
  transform: scale(0.85);
}

/* 大按钮 */
.big-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 150px;
  height: 80px;
  border-radius: var(--radius-pill);
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
  background-color: var(--bg-button);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  pointer-events: auto;
  transition:
    transform var(--time-fast) ease,
    background-color var(--time-fast) ease;
}

.big-button:hover {
  transform: scale(1.05);
  background-color: var(--bg-hover);
}

.big-button:active {
  transform: scale(0.85);
  background-color: var(--bg-active);
}

/* =========================================
   卡片系统
   ========================================= */

/* 基础卡片 */
.card {
  width: 100%;
  max-width: 1600px;
  margin: 30px auto;
  padding: 60px;
  border-radius: var(--radius-xl);
  background: var(--bg-card);
  box-shadow: var(--shadow-xxl);
  border: var(--border-glass);
  pointer-events: auto;
}

/* =========================================
   动画系统
   ========================================= */

/* 入场动画初始状态 */
header {
  transform: translateY(-100%);
  opacity: 0;
  will-change: transform, opacity;
  transition:
    transform var(--time-slow) cubic-bezier(0.2, 0.8, 0.4, 1),
    opacity var(--time-slow) ease,
    background-color var(--time-normal) ease;
}

.card,
.logo-group,
#welcome-section {
  transform: translateY(40px);
  opacity: 0;
  will-change: transform, opacity;
  transition:
    transform var(--time-slow) cubic-bezier(0.2, 0.8, 0.4, 1),
    opacity var(--time-slow) ease;
}

.dock button {
  transform: translateX(30px);
  opacity: 0;
  will-change: transform, opacity;
  transition:
    transform 0.6s cubic-bezier(0.2, 0.8, 0.4, 1),
    opacity 0.6s ease,
    background-color var(--time-normal) ease;
}

/* 入场动画激活状态 */
.animate-in {
  transform: translate(0, 0) !important;
  opacity: 1 !important;
  will-change: auto;
}

/* 无障碍：动效敏感用户直接跳过所有入场动画 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  header,
  .card,
  .logo-group,
  #welcome-section,
  .dock button,
  .page-hero,
  .hero-section,
  .corner-kaomoji {
    transform: none !important;
    opacity: 1 !important;
  }
}

/* =========================================
   工具类
   ========================================= */
.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-secondary {
  color: var(--text-secondary);
}

/* =========================================
   工具页面布局（水印 / 提词器 / 数据加密等）
   ========================================= */
body.tool-page header {
  position: sticky;
}

body.tool-page main {
  width: var(--content-max-width);
  max-width: 90%;
  margin: 60px auto;
  padding: 60px;
}

.tool-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.tool-title {
  text-align: center;
  margin-top: 0;
  font-size: 24px;
  font-weight: 700;
}

/* =========================================
   角落颜文字
   ========================================= */
.corner-kaomoji {
  position: fixed;
  bottom: 30px;
  left: 30px;
  z-index: 50;
  cursor: pointer;
  user-select: none;
  -webkit-user-drag: none;
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.corner-kaomoji.animate-in {
  opacity: 1;
  transform: translateX(0);
}

.corner-kaomoji .face {
  display: block;
  font-size: 32px;
  line-height: 1;
  padding: 16px 22px;
  border-radius: 9999px;
  background: var(--bg-dock);
  backdrop-filter: saturate(150%) blur(8px);
  -webkit-backdrop-filter: saturate(150%) blur(8px);
  border: var(--border-glass);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s ease, background-color 0.25s ease;
  transform: scale(1);
}

.corner-kaomoji:hover .face {
  transform: scale(1.1);
  background: var(--bg-gallery);
}

.corner-kaomoji:active .face {
  transform: scale(0.9);
}

.corner-kaomoji .bubble {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 0;
  transform: translateY(10px);
  white-space: nowrap;
  text-align: left;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  background: var(--bg-button);
  backdrop-filter: saturate(150%) blur(8px);
  -webkit-backdrop-filter: saturate(150%) blur(8px);
  border: var(--border-glass);
  box-shadow: var(--shadow-sm);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-primary);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.corner-kaomoji .bubble.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 540px) {
  .corner-kaomoji { bottom: 110px; left: 20px; }
  .corner-kaomoji .face { font-size: 24px; padding: 12px 16px; }
  .corner-kaomoji .bubble { font-size: 12px; padding: 8px 14px; }
}

/* =========================================
   移动端响应式样式
   ========================================= */
@media (max-width: 900px) {
  main {
    margin-top: 40px;
    padding: 15px 0;
  }

  .card {
    padding: 40px 30px;
    margin: 25px auto;
  }
}

@media (max-width: 768px) {
  main {
    margin-top: 100px;
    padding: 15px 0;
  }

  .card {
    padding: 30px 20px;
    margin: 20px auto;
  }
}

@media (max-width: 540px) {
  header {
    padding: 8px 0;
  }

  .logo-group img {
    height: 32px;
  }

  main {
    margin-top: 80px;
    padding: 10px 0;
    max-width: 95%;
  }

  .card {
    padding: 30px 20px;
    margin: 20px auto;
  }

  .pill-button {
    min-width: 80px;
    padding: 12px 18px;
    font-size: 14px;
  }

  .big-button {
    width: 130px;
    height: 70px;
    font-size: 14px;
  }

  .dock {
    position: fixed;
    right: 50%;
    transform: translateX(50%);
    bottom: 20px;
    top: auto;
    left: auto;
    flex-direction: row;
    padding: 10px 15px;
    gap: 10px;
    border-radius: var(--radius-pill);
    max-width: 90%;
    overflow-x: auto;
  }

  .dock-tooltip {
    display: none;
  }

  .dock-divider {
    display: none;
  }
}

/* =========================================
   通用 Hero 入场动画（多个子页面共用）
   ========================================= */
.page-hero {
  text-align: center;
  margin: 0 auto;
  max-width: 900px;
  padding: 30px;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.4, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.4, 1);
}

.page-hero.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.page-hero-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--text-primary);
}

.page-hero-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 2;
}

/* 透明卡片覆盖（changelog / history 等页面） */
.card-transparent {
  width: calc(97% - 80px);
  max-width: 1600px;
  margin: 40px auto;
  padding: 0;
  background: transparent;
  box-shadow: none;
  border: none;
  pointer-events: auto;
}

@media (max-width: 768px) {
  .card-transparent { width: calc(100% - 40px); margin: 20px auto; }
  .page-hero { padding: 20px 16px; }
  .page-hero-title { font-size: 26px; }
  .page-hero-subtitle { font-size: 15px; }
}

@media (max-width: 540px) {
  .card-transparent { width: calc(100% - 20px); margin: 15px auto; }
  .page-hero { padding: 16px 12px; }
  .page-hero-title { font-size: 24px; }
  .page-hero-subtitle { font-size: 14px; line-height: 1.8; }
}