/**
 * 功能面板样式（重构版）
 * @package Westlife
 * @version 1.0.0
 *
 * 目录
 * 1) 基础结构（容器/对话框/头部/内容区）
 * 2) 区块卡片（标题/空状态）
 * 3) 列表：文章（日期方格·一行布局）
 * 4) 列表：最新评论（头像在中间，右侧信息）
 * 5) 年份统计（3+1 布局）
 * 6) 关键词标签（# + 数字角标）
 * 7) 顶部评论榜（头像角标）
 * 8) 交互与状态（悬浮、阴影）
 * 9) 暗色模式
 * 10) 响应式
 */

/* =========================
   1) 基础结构
   ========================= */

/* 面板容器 */
.site-panel {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2vh;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.site-panel.is-open {
  opacity: 1;
  pointer-events: auto;
}

/* 背景遮罩 */
.site-panel-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(8px) saturate(120%);
  -webkit-backdrop-filter: blur(8px) saturate(120%);
}

/* 对话框主体 */
.site-panel-dialog {
  position: relative;
  z-index: 1;
  width: min(1100px, 70vw);
  max-width: 1100px;
  max-height: 85vh;
  background: var(--color-background);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
  overflow: hidden;
  transform: translateY(10px) scale(0.98);
  opacity: 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.site-panel.is-open .site-panel-dialog {
  transform: translateY(0) scale(1);
  opacity: 1;
}

/* 头部 */
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
  background: inherit;
  position: sticky;
  top: 0;
  z-index: 2;
}
.panel-header h3 {
  margin: 0;
  font-size: 1.05rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.panel-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-background-light);
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.2s;
}
.panel-close:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
}

/* 内容区（左右两栏，可滚动） */
.panel-content {
  flex: 1 1 auto;
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 1rem 1.25rem 1.25rem;
  overflow: auto;
}
.panel-left,
.panel-right {
  min-width: 0;
  overflow: auto;
  padding-right: 4px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.panel-left::-webkit-scrollbar,
.panel-right::-webkit-scrollbar {
  display: none;
}

/* 背景动态特效（移植自首页评论飘动模块） */
.panel-content {
  position: relative;
}
.panel-content .floating-bg-effects {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0; /* 置于内容之下 */
  overflow: hidden;
}
.panel-content .bg-particle {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(59, 130, 246, 0.2) 0%,
    rgba(147, 197, 253, 0.1) 30%,
    transparent 70%
  );
  filter: blur(20px);
  animation: floatGlow 20s infinite ease-in-out;
  opacity: 0.8;
}
.panel-content .bg-particle:nth-child(1) {
  width: 150px;
  height: 150px;
  top: -10%;
  left: 8%;
  animation-delay: 0s;
  animation-duration: 15s;
}
.panel-content .bg-particle:nth-child(2) {
  width: 200px;
  height: 200px;
  top: 48%;
  left: 65%;
  animation-delay: 3s;
  animation-duration: 18s;
}
.panel-content .bg-particle:nth-child(3) {
  width: 120px;
  height: 120px;
  top: 28%;
  left: 82%;
  animation-delay: 6s;
  animation-duration: 20s;
}
.panel-content .bg-particle:nth-child(4) {
  width: 180px;
  height: 180px;
  top: 72%;
  left: 22%;
  animation-delay: 9s;
  animation-duration: 16s;
}
.panel-content .bg-particle:nth-child(5) {
  width: 140px;
  height: 140px;
  top: 12%;
  left: 42%;
  animation-delay: 12s;
  animation-duration: 22s;
}

@keyframes floatGlow {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
    opacity: 0.4;
  }
  20% {
    transform: translate(30px, -30px) scale(1.2);
    opacity: 0.6;
  }
  40% {
    transform: translate(-20px, 20px) scale(0.9);
    opacity: 0.5;
  }
  60% {
    transform: translate(25px, 15px) scale(1.1);
    opacity: 0.7;
  }
  80% {
    transform: translate(-15px, -10px) scale(0.95);
    opacity: 0.4;
  }
}
.panel-content .floating-bg-effects::before,
.panel-content .floating-bg-effects::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(59, 130, 246, 0.1);
  animation: ripple 8s infinite ease-out;
}
.panel-content .floating-bg-effects::before {
  width: 300px;
  height: 300px;
  top: 20%;
  left: 30%;
  animation-delay: 0s;
}
.panel-content .floating-bg-effects::after {
  width: 250px;
  height: 250px;
  top: 60%;
  left: 70%;
  animation-delay: 4s;
}
@keyframes ripple {
  0% {
    transform: scale(0.8);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.2);
    opacity: 0.3;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}
[data-theme="dark"] .panel-content .bg-particle {
  background: radial-gradient(
    circle,
    rgba(59, 130, 246, 0.25) 0%,
    rgba(147, 197, 253, 0.12) 30%,
    transparent 70%
  );
}
[data-theme="dark"] .panel-content .floating-bg-effects::before,
[data-theme="dark"] .panel-content .floating-bg-effects::after {
  border-color: rgba(59, 130, 246, 0.15);
}

/* =========================
   2) 区块卡片
   ========================= */

.panel-section {
  background: var(--color-card-background);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  padding: 1rem;
}
.panel-section + .panel-section {
  margin-top: 1rem;
}
.panel-section h4 {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}
.panel-empty {
  color: var(--color-text-light);
  text-align: center;
  padding: 0.75rem 0;
}

/* =========================
   3) 列表：文章（日期方格·一行布局）
   ========================= */

/* 容器 */
.panel-posts {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* 单条：左日期方格 / 中标题 / 右图标+数量 */
.panel-post-item a.panel-post-row {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  color: var(--color-text);
  text-decoration: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

/* 左侧日期方格（两行等分：YYYY / MMDD） */
.post-datebox {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  padding: 0;
  display: grid;
  grid-template-rows: 1fr 1fr;
  align-items: stretch;
  justify-items: center;
  line-height: 1;
  background: var(--color-background-light);
  border: 1px solid var(--color-border);
  user-select: none;
}
.post-datebox .date-top,
.post-datebox .date-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.5px;
}

/* 标题（单行省略） */
.panel-post-title {
  margin: 0;
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 右侧数值（胶囊） */
.panel-post-count {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text-light);
  font-size: 0.75rem; /* 更小的字体 */
  font-weight: 400;
  background: transparent;
}
.panel-post-count .count {
  line-height: 1;
}

/* =========================
   4) 列表：最新评论（头像在中间，右侧信息）
   ========================= */

.panel-comments {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel-comment-item a {
  display: flex;
  align-items: center; /* 头像垂直居中到整条 */
  gap: 14px;
  padding: 12px 14px;
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  text-decoration: none;
  color: var(--color-text);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

/* 头像 */
.panel-comment-avatar {
  flex: 0 0 56px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-background-light);
}
.panel-comment-avatar img,
.panel-comment-avatar .avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  display: block;
}

/* 文本区 */
.panel-comment-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.panel-comment-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.panel-comment-author {
  font-weight: 700;
  color: var(--color-text);
}
.panel-comment-time {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--color-text-light);
}
.panel-comment-excerpt {
  margin: 0;
  color: var(--color-text);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}
.panel-comment-foot {
  margin-top: 2px;
}
.panel-comment-post {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--color-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.panel-comment-post i {
  color: var(--color-primary);
}

/* =========================
   5) 年份统计（3+1 布局）
   ========================= */

.panel-archives {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.panel-archive-item a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 14px;
  background: var(--color-background);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  text-decoration: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
/* 统计胶囊 */
.panel-archive-count {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--color-background);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  font-size: 12px;
}
/* “全部文章”独占下一行 */
.panel-archives .panel-archive-item:last-child {
  grid-column: 1 / -1;
}

/* =========================
   6) 关键词标签（# + 数字角标）
   ========================= */

.panel-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.panel-tags a {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 0.25rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--color-text);
  line-height: 1.2;
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease,
    border-color 0.2s ease;
}
.panel-tags a::before {
  content: "#";
  margin-right: 2px;
  color: var(--color-primary);
  font-weight: 600;
}
.panel-tags a::after {
  content: attr(data-count);
  position: absolute;
  top: -0.45em;
  right: -0.35em;
  font-size: 10px;
  line-height: 1;
  font-weight: 600;
  color: var(--color-text-light);
  background: none;
  border: 0;
  padding: 0;
}
.panel-tags a:not([data-count])::after,
.panel-tags a[data-count=""]::after {
  content: none;
}

/* =========================
   7) 顶部评论榜（头像角标）
   ========================= */

.panel-top-commenters {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}
.commenter-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
}
.commenter-avatar {
  position: relative;
  display: inline-block;
  line-height: 0;
  --badge-offset: 9.4px; /* 64px 头像：r*(1-1/√2) ≈ 32*0.293 */
}
.commenter-avatar img,
.commenter-avatar .avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: block;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
  object-fit: cover;
}
.commenter-badge {
  position: absolute;
  top: 0;
  right: 0;
  transform: translate(50%, -50%)
    translate(calc(-1 * var(--badge-offset)), var(--badge-offset));
  z-index: 2;
  width: 22px;
  height: 22px;
  padding: 0;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: 12px;
  line-height: 1;
  border: 2px solid var(--color-card-background);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.25);
}
.commenter-name {
  max-width: 88px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* =========================
   8) 交互与状态（悬浮、阴影）
   ========================= */

/* 简洁悬浮：仅描边 + 轻阴影（不蓝底、不位移） */
.panel-post-item a.panel-post-row:hover,
.panel-archive-item a:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}
.panel-comment-item a:hover {
  background: var(--color-background);
  border-color: var(--color-primary);
  color: var(--color-text);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  transform: none;
}
/* 文章条目悬浮时，右侧胶囊跟随主色 */
.panel-post-item a.panel-post-row:hover .panel-post-count {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
/* 标签悬浮：仅文字主色 + 轻底 */
.panel-tags a:hover {
  color: var(--color-primary);
  text-decoration: underline;
  background: var(--color-background-light);
  border-color: var(--color-border);
}

/* =========================
   9) 暗色模式
   ========================= */

[data-theme="dark"] .site-panel-dialog {
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.4);
}
[data-theme="dark"] .panel-section {
  background: var(--color-background);
  border-color: var(--color-border);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
}
[data-theme="dark"] .panel-comment-item a {
  background: var(--color-background);
  border-color: var(--color-border);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
}
[data-theme="dark"] .panel-comment-item a:hover {
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
}
[data-theme="dark"] .panel-post-item a.panel-post-row {
  background: var(--color-background);
  border-color: var(--color-border);
}
[data-theme="dark"] .post-datebox {
  background: var(--color-background);
}
[data-theme="dark"] .panel-post-item a.panel-post-row:hover {
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.28);
}
[data-theme="dark"] .panel-archive-item a:hover {
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.28);
}
[data-theme="dark"] .panel-tags a {
  background: var(--color-background);
  border-color: var(--color-border);
  color: var(--color-text);
}
[data-theme="dark"] .panel-tags a::before {
  color: var(--color-primary);
}
[data-theme="dark"] .panel-tags a::after {
  color: var(--color-text-light);
}
[data-theme="dark"] .panel-comment-time {
  color: var(--color-text-light);
}
[data-theme="dark"] .panel-comment-post,
[data-theme="dark"] .panel-comment-post i {
  color: var(--color-text-light);
}
[data-theme="dark"] .commenter-badge {
  border-color: var(--color-background);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.45);
}

/* =========================
   10) 响应式
   ========================= */

/* 布局收缩为单栏 */
@media (max-width: 992px) {
  .site-panel-dialog {
    width: 92vw;
    max-height: 90vh;
  }
  .panel-content {
    grid-template-columns: 1fr;
  }
  .panel-top-commenters {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* 小屏微调 */
@media (max-width: 768px) {
  .panel-archives {
    grid-template-columns: repeat(2, 1fr);
  }
  .panel-archives .panel-archive-item:last-child {
    grid-column: 1 / -1;
  }
}

/* 更小屏：对话框与头像/日期缩小 */
@media (max-width: 576px) {
  .site-panel-dialog {
    width: 96vw;
    border-radius: 12px;
  }
  .panel-comment-avatar {
    flex-basis: 40px;
    width: 40px;
    height: 40px;
  }
  .panel-comment-avatar img {
    width: 40px;
    height: 40px;
  }
  .panel-comment-time {
    font-size: 11px;
  }
  .panel-top-commenters {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .panel-post-item a.panel-post-row {
    grid-template-columns: 48px 1fr auto;
    gap: 10px;
    padding: 8px 10px;
  }
  .post-datebox {
    width: 48px;
    height: 48px;
  }
  .post-datebox .date-top,
  .post-datebox .date-bottom {
    font-size: 13px;
  }
}

/* 极小屏：再收紧日期与间距 */
@media (max-width: 480px) {
  .panel-archives {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 380px) {
  .post-datebox {
    width: 44px;
    height: 44px;
  }
  .panel-post-item a.panel-post-row {
    grid-template-columns: 44px 1fr auto;
    gap: 8px;
    padding: 7px 9px;
  }
  .post-datebox .date-top,
  .post-datebox .date-bottom {
    font-size: 11px;
  }
}

/* =========================
   11) 深色模式适配
   ========================= */
[data-theme="dark"] .site-panel-backdrop {
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(10px) saturate(130%);
}

[data-theme="dark"] .site-panel-dialog {
  background: var(--color-background);
  color: var(--color-text);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  border: 1px solid var(--color-border);
}

[data-theme="dark"] .panel-header {
  border-bottom-color: var(--color-border);
}

[data-theme="dark"] .panel-close {
  border-color: var(--color-border);
  background: var(--color-background-light);
  color: var(--color-text);
}

[data-theme="dark"] .panel-close:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

[data-theme="dark"] .panel-section {
  background: var(--color-card-background);
  border-color: var(--color-border);
}

[data-theme="dark"] .panel-empty {
  color: var(--color-text-light);
}

[data-theme="dark"] .panel-post-row:hover {
  background: var(--color-background-light);
}

[data-theme="dark"] .panel-comment-item:hover {
  background: var(--color-background-light);
}