/* ==============================
   RY7博客：蓝紫科技毛玻璃样式
   ============================== */

:root {
  --ry7-ink: #071a3a;
  --ry7-cyan: #38bdf8;
  --ry7-violet: #8b5cf6;
  --ry7-surface: rgba(255, 255, 255, 0.76);
  --ry7-line: rgba(56, 189, 248, 0.24);
  --ry7-display: Bahnschrift, "Microsoft YaHei UI", sans-serif;
  --ry7-body: "Microsoft YaHei UI", "PingFang SC", sans-serif;
  --ry7-mono: "Cascadia Code", "JetBrains Mono", monospace;
}

body {
  font-family: var(--ry7-body);
}

::selection {
  color: #fff;
  background: #4f46e5;
}

/* 首页背景缓慢移动 */
#page-header.full_page {
  background-position: center;
  background-size: 110% 110%;
  animation: backgroundMove 15s ease-in-out infinite alternate;
}

@keyframes backgroundMove {
  0% {
    background-position: left top;
  }

  100% {
    background-position: right bottom;
  }
}

/* 文章卡片、侧边栏和文章页面毛玻璃 */
#recent-posts > .recent-post-item,
#aside-content .card-widget,
#post,
#page,
#archive,
#tag,
#category {
  background: rgba(255, 255, 255, 0.72) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 18px;
  box-shadow: 0 8px 30px rgba(30, 64, 175, 0.15);
}

/* 卡片悬停动画 */
#recent-posts > .recent-post-item,
#aside-content .card-widget {
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

#recent-posts > .recent-post-item:hover,
#aside-content .card-widget:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 38px rgba(59, 130, 246, 0.25);
}

/* 导航栏毛玻璃 */
#page-header.nav-fixed #nav {
  background: rgba(4, 18, 52, 0.72) !important;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

/* 首页标题增加蓝色光晕 */
#site-title,
#site-subtitle {
  text-shadow:
    0 0 10px rgba(56, 189, 248, 0.85),
    0 0 24px rgba(99, 102, 241, 0.7);
}

#site-title {
  font-family: var(--ry7-display);
  font-weight: 700;
  letter-spacing: 0.04em;
}

/* 博客的签名元素：把首页定义为一座信号日志站 */
#page-header.full_page #site-info::before {
  display: table;
  margin: 0 auto 0.8rem;
  padding: 0.32rem 0.72rem;
  border: 1px solid rgba(103, 232, 249, 0.52);
  border-radius: 999px;
  background: rgba(4, 18, 52, 0.46);
  box-shadow: 0 0 24px rgba(56, 189, 248, 0.18);
  color: #cffafe;
  content: "RY7 / SIGNAL LOG";
  font-family: var(--ry7-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  line-height: 1.4;
}

/* 让导航、标题和元信息具有一致的信号站语言 */
#nav .menus_items .menus_item > a,
#aside-content .item-headline,
#post-info .post-meta,
.post-meta-date,
.article-sort-item-year {
  font-family: var(--ry7-mono);
}

#aside-content .card-info .author-info-name {
  font-family: var(--ry7-display);
  letter-spacing: 0.04em;
}

#aside-content .card-info .avatar-img img {
  border: 2px solid rgba(103, 232, 249, 0.72);
  box-shadow:
    0 0 0 6px rgba(56, 189, 248, 0.08),
    0 10px 28px rgba(49, 46, 129, 0.22);
}

/* 资料卡联系方式：GitHub + 一键复制邮箱 */
#aside-content .card-info .card-info-social-icons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
}

#aside-content .card-info .card-info-social-icons .social-icon,
#aside-content .card-info .ry7-email-copy {
  display: inline-grid;
  width: 2.35rem;
  height: 2.35rem;
  margin: 0;
  place-items: center;
  border: 1px solid rgba(56, 189, 248, 0.18);
  border-radius: 0.75rem;
  background: rgba(224, 242, 254, 0.66);
  color: #2563eb !important;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease,
    color 0.2s ease;
}

#aside-content .card-info .card-info-social-icons .social-icon:hover,
#aside-content .card-info .ry7-email-copy:hover {
  border-color: rgba(56, 189, 248, 0.58);
  background: rgba(186, 230, 253, 0.86);
  color: #4338ca !important;
  transform: translateY(-2px);
}

#aside-content .card-info .card-info-social-icons .social-icon i {
  color: #2563eb !important;
}

#aside-content .card-info .ry7-email-status {
  min-height: 1.35rem;
  margin-top: 0.45rem;
  color: #0369a1;
  font-family: var(--ry7-body);
  font-size: 0.76rem;
  line-height: 1.35rem;
  opacity: 0;
  transform: translateY(-3px);
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
}

#aside-content .card-info .ry7-email-status.is-visible {
  opacity: 1;
  transform: translateY(0);
}

#aside-content .card-info .ry7-email-status.is-error {
  color: #b45309;
}

/* 左侧欢迎卡：用信号轨道而不是默认公告样式 */
#aside-content .card-announcement {
  position: relative;
  overflow: hidden;
}

#aside-content .card-announcement::before {
  position: absolute;
  top: 1.1rem;
  bottom: 1.1rem;
  left: 0;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--ry7-cyan), var(--ry7-violet));
  content: '';
}

#aside-content .card-announcement .ry7-welcome-icon {
  color: #0284c7 !important;
  filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.35));
}

#aside-content .card-announcement .announcement_content {
  color: #334155;
  line-height: 1.85;
}

#article-container h2 {
  border-left: 3px solid var(--ry7-cyan);
  padding-left: 0.72rem;
}

#article-container a:not(.headerlink) {
  text-decoration-color: rgba(56, 189, 248, 0.55);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

#footer {
  border-top: 1px solid rgba(56, 189, 248, 0.22);
  background: linear-gradient(135deg, #061a3a 0%, #172554 58%, #312e81 100%);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--ry7-cyan);
  outline-offset: 3px;
}

/* 深色模式下的卡片 */
[data-theme='dark'] #recent-posts > .recent-post-item,
[data-theme='dark'] #aside-content .card-widget,
[data-theme='dark'] #post,
[data-theme='dark'] #page,
[data-theme='dark'] #archive,
[data-theme='dark'] #tag,
[data-theme='dark'] #category {
  background: rgba(15, 23, 42, 0.75) !important;
  border-color: rgba(96, 165, 250, 0.2);
}

/* 手机端取消上浮，避免触摸时跳动 */
@media screen and (max-width: 768px) {
  #recent-posts > .recent-post-item:hover,
  #aside-content .card-widget:hover {
    transform: none;
  }

  #page-header.full_page #site-info::before {
    font-size: 0.64rem;
    letter-spacing: 0.14em;
  }
}

[data-theme='dark'] #aside-content .card-info .card-info-social-icons .social-icon,
[data-theme='dark'] #aside-content .card-info .ry7-email-copy {
  border-color: rgba(96, 165, 250, 0.25);
  background: rgba(30, 41, 59, 0.78);
  color: #7dd3fc !important;
}

[data-theme='dark'] #aside-content .card-info .card-info-social-icons .social-icon i {
  color: #7dd3fc !important;
}

[data-theme='dark'] #aside-content .card-announcement .announcement_content {
  color: #cbd5e1;
}

[data-theme='dark'] #aside-content .card-info .ry7-email-status {
  color: #7dd3fc;
}

@media (prefers-reduced-motion: reduce) {
  #page-header.full_page {
    animation: none;
  }

  #recent-posts > .recent-post-item,
  #aside-content .card-widget {
    transition: none;
  }
}