/* ============================================================
 * 江城市家居装修论坛 · 完整存档样式
 * ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: "Noto Sans SC", -apple-system, sans-serif;
  color: #2c2825;
  background: #f5f1ea;
  line-height: 1.85;
  font-size: 15.5px;
  letter-spacing: 0.012em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  margin: 0;
}
@media (min-width: 768px) { body { font-size: 16px; } }

body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(184,151,90,0.025), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(184,151,90,0.02), transparent 50%);
  z-index: 0;
}

/* 阅读进度条 */
.progress-bar {
  position: fixed; top: 0; left: 0;
  height: 1.5px; width: 0%;
  background: linear-gradient(to right, #b8975a, #c9a96e);
  z-index: 100;
  transition: width 0.1s linear;
}

/* 头部 */
.forum-mast {
  border-bottom: 1px solid #e5dfd2;
  background: rgba(245, 241, 234, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 40;
}
.forum-mast .inner {
  max-width: 64rem;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.forum-mast .brand { display: flex; align-items: center; gap: 10px; min-width: 0; color: inherit; text-decoration: none; }
.forum-mast .logo {
  width: 32px; height: 32px;
  border-radius: 3px;
  background: #2c2825;
  color: #f5f1ea;
  display: flex; align-items: center; justify-content: center;
  font-family: "Noto Serif SC", serif;
  font-size: 14px;
  flex-shrink: 0;
}
.forum-mast .label { font-size: 10px; letter-spacing: 0.18em; color: #8a8278; text-transform: uppercase; }
.forum-mast .title { font-family: "Noto Serif SC", serif; font-weight: 600; color: #2c2825; font-size: 15px; line-height: 1.2; }

.main-nav { display: none; gap: 4px; }
@media (min-width: 768px) { .main-nav { display: flex; align-items: center; } }
.main-nav a {
  color: #5a554d;
  font-size: 0.88em;
  padding: 4px 10px;
  border-radius: 3px;
  text-decoration: none;
  transition: all 0.25s;
}
.main-nav a:hover { color: #2c2825; background: rgba(184, 151, 90, 0.08); }
.main-nav a.active { color: #8a6f3a; background: rgba(184, 151, 90, 0.1); }

.user-area { display: flex; align-items: center; gap: 8px; }
.user-area a { color: #5a554d; font-size: 12px; text-decoration: none; white-space: nowrap; }
.user-area a:hover { color: #2c2825; }
.user-area .sep { color: #8a8278; font-size: 12px; }

/* 主体 */
.container {
  max-width: 64rem;
  margin: 0 auto;
  padding: 24px 16px 64px;
  position: relative;
  z-index: 1;
}
@media (min-width: 640px) { .container { padding-left: 20px; padding-right: 20px; } }

/* 面包屑 */
.breadcrumb {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78em;
  color: #8a8278;
  margin-bottom: 0.6em;
}
.breadcrumb a { color: #8a8278; transition: color 0.2s; text-decoration: none; }
.breadcrumb a:hover { color: #8a6f3a; }
.breadcrumb .sep { margin: 0 0.4em; color: #c4baa0; }
.breadcrumb .current { color: #5a554d; }

/* 版块标题 */
.forum-header { margin-bottom: 28px; }
.forum-header h1 {
  font-family: "Noto Serif SC", serif;
  font-size: 1.7em;
  font-weight: 600;
  color: #2c2825;
  line-height: 1.2;
  letter-spacing: -0.005em;
  margin: 0 0 4px 0;
}
@media (min-width: 640px) { .forum-header h1 { font-size: 2em; } }
.forum-header .sub {
  font-size: 0.92em;
  color: #5a554d;
  margin: 4px 0 0 0;
}
.forum-header .archive-tag {
  display: inline-block;
  margin-top: 8px;
  padding: 3px 10px;
  background: #ece8df;
  color: #6b665e;
  border: 1px solid #d8d0bd;
  border-radius: 2px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72em;
  letter-spacing: 0.06em;
}

/* 顶部 disclaimer */
.top-disclaimer {
  margin: 18px 0 26px;
  padding: 1em 1.2em;
  background: #fdfaf3;
  border: 1px solid #e5dfd2;
  border-left: 3px solid #d4c8ad;
  border-radius: 4px;
  font-family: "Noto Serif SC", serif;
  font-style: italic;
  color: #6b665e;
  line-height: 1.85;
  font-size: 0.92em;
}
.top-disclaimer p { margin: 0.2em 0; }
.top-disclaimer .last-line {
  color: #8a8278;
  transition: color 0.6s;
  cursor: pointer;
}
.top-disclaimer .last-line:hover { color: #2c2825; }

/* 帖子标题 / 目录 */
.toc {
  background: #fdfaf3;
  border: 1px solid #e5dfd2;
  border-radius: 6px;
  margin-bottom: 28px;
  overflow: hidden;
}
.toc-head {
  background: linear-gradient(180deg, #f1eadc, #ebe2cd);
  border-bottom: 1px solid #d8d0bd;
  padding: 0.7em 1.1em;
  font-family: "Noto Serif SC", serif;
  font-weight: 600;
  font-size: 0.95em;
  color: #2c2825;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.toc-head .meta {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72em;
  color: #8a8278;
  font-weight: 400;
}
.toc ol {
  list-style: none;
  margin: 0; padding: 0;
  counter-reset: toc;
}
.toc li {
  counter-increment: toc;
  padding: 0.55em 1.1em;
  border-top: 1px solid #ece5d5;
  display: flex;
  align-items: baseline;
  gap: 0.7em;
  font-size: 0.9em;
}
.toc li:first-child { border-top: 0; }
.toc li::before {
  content: counter(toc, decimal-leading-zero);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78em;
  color: #a39a8a;
  flex-shrink: 0;
}
.toc li a {
  color: #2c2825;
  font-family: "Noto Serif SC", serif;
  text-decoration: none;
  transition: color 0.2s;
  flex: 1;
}
.toc li a:hover { color: #8a6f3a; }
.toc li .by {
  font-size: 0.82em;
  color: #8a8278;
  font-family: "Noto Sans SC", sans-serif;
}

/* 帖子卡片 */
.thread-card {
  background: #fdfaf3;
  border: 1px solid #e5dfd2;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(44, 40, 37, 0.025);
  transition: box-shadow 0.4s ease;
  margin-bottom: 36px;
  scroll-margin-top: 80px;
}
.thread-card:hover { box-shadow: 0 2px 14px rgba(44, 40, 37, 0.045); }

.thread-head {
  background: linear-gradient(180deg, #f1eadc, #ebe2cd);
  border-bottom: 1px solid #d8d0bd;
  padding: 1em 1.2em;
}
.thread-head h2 {
  font-family: "Noto Serif SC", serif;
  font-weight: 600;
  font-size: 1.18em;
  color: #2c2825;
  line-height: 1.4;
  margin: 0 0 0.3em 0;
}
@media (min-width: 640px) { .thread-head h2 { font-size: 1.28em; } }
.thread-head .meta {
  font-size: 0.8em;
  color: #8a8278;
  font-family: "IBM Plex Mono", monospace;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3em 1em;
}
.thread-head .meta .author { color: #5a554d; }
.thread-head .meta .author.is-op { color: #8a6f3a; }
.thread-head .meta .author.is-mod { color: #5a7388; }
.thread-head .meta .author.is-system { color: #2c2825; }

/* 标签 */
.badge {
  display: inline-block;
  padding: 1.5px 7px;
  font-size: 0.7em;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: 2px;
  vertical-align: 2px;
  margin-right: 5px;
  font-family: "Noto Sans SC", sans-serif;
}
.badge-top { background: #f4e6d8; color: #c47b54; border: 1px solid #e8cfb4; }
.badge-fine { background: #f1eadc; color: #8a6f3a; border: 1px solid #ddd0b0; }
.badge-locked { background: #ece8df; color: #6b665e; border: 1px solid #d8d0bd; }
.badge-hot { background: #f4e1d8; color: #b85a3c; border: 1px solid #e8c2b0; }
.badge-verified {
  display: inline-block;
  margin-left: 6px;
  padding: 1px 6px;
  font-size: 0.7em;
  color: #5a7388;
  background: #e8eef3;
  border: 1px solid #c8d6e1;
  border-radius: 2px;
  letter-spacing: 0.04em;
  vertical-align: 1px;
}

/* 楼层 */
.reply {
  border-top: 1px solid #ece5d5;
  padding: 1.05em 1.2em;
  transition: background 0.6s ease;
  position: relative;
}
.reply.op-post { border-top: 0; padding-top: 1.4em; }
.reply:hover { background: rgba(232, 220, 195, 0.1); }

.reply-head {
  display: flex;
  align-items: flex-start;
  gap: 0.7em;
  margin-bottom: 0.6em;
}
.avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, #d8d0bd, #c4baa0);
  color: #5a554d;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: "Noto Serif SC", serif;
  font-weight: 600;
  font-size: 0.95em;
  flex-shrink: 0;
  user-select: none;
  margin-top: 1px;
}
.avatar-mod {
  background: linear-gradient(135deg, #b9c5d1, #8ea5b9);
  color: #fff;
  position: relative;
}
.avatar-mod::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 1px solid rgba(90, 115, 136, 0.18);
  animation: ring-breathe 6s ease-in-out infinite;
}
@keyframes ring-breathe {
  0%, 100% { transform: scale(1); opacity: 0.4; }
  50% { transform: scale(1.05); opacity: 0.1; }
}
.avatar-op { background: linear-gradient(135deg, #d4b88a, #b8975a); color: #fff; }
.avatar-system { background: #2c2825; color: #f5f1ea; font-size: 0.65em; }
.avatar-property { background: linear-gradient(135deg, #c0c8b8, #95a085); color: #fff; }
.avatar-corrupt {
  background: #1a1815;
  color: #5a554d;
}

.reply-meta {
  flex: 1;
  min-width: 0;
  font-size: 0.86em;
  line-height: 1.4;
}
.reply-meta .row1 {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.3em 0.7em;
}
.username {
  color: #2c2825;
  font-weight: 500;
  font-size: 0.98em;
}
.username.is-op { color: #8a6f3a; }
.username.is-mod { color: #5a7388; font-weight: 500; }
.username.is-system { color: #2c2825; font-family: "IBM Plex Mono", monospace; font-size: 0.92em; letter-spacing: 0.02em; }

.timestamp {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82em;
  color: #8a8278;
  letter-spacing: 0.015em;
}
.floor-num {
  font-family: "IBM Plex Mono", monospace;
  color: #8a8278;
  font-weight: 500;
  font-size: 0.85em;
  letter-spacing: 0.02em;
}

.post-body {
  margin-left: calc(34px + 0.7em);
  font-size: 0.97em;
  color: #2c2825;
}
@media (max-width: 640px) {
  .post-body { margin-left: 0; }
}
.post-body p { margin: 0.55em 0; }
.post-body p:first-child { margin-top: 0; }
.post-body p:last-child { margin-bottom: 0; }

strong { color: #2c2825; font-weight: 600; }
del { color: #a39a8a; }
em { color: #5a554d; }

/* 引用块 */
blockquote.q {
  margin: 1em 0;
  padding: 0.6em 1.1em;
  border-left: 2.5px solid #d4c8ad;
  background: rgba(232, 220, 195, 0.18);
  color: #5a554d;
  font-style: italic;
  border-radius: 2px;
  animation: q-breathe 8s ease-in-out infinite;
}
@keyframes q-breathe {
  0%, 100% { background: rgba(232, 220, 195, 0.18); }
  50% { background: rgba(232, 220, 195, 0.26); }
}

/* @提及 */
.mention {
  color: #5a7388;
  cursor: pointer;
  text-decoration: none;
  border-bottom: 1px dotted rgba(90, 115, 136, 0.35);
  transition: all 0.2s;
}
.mention:hover { color: #3a5168; border-bottom-color: #3a5168; }

/* 图片占位符 */
.img-placeholder {
  display: inline-block;
  margin: 0.4em 0.3em 0.4em 0;
  padding: 0.55em 0.95em;
  background: #f0eadd;
  border: 1px dashed #d4c8ad;
  color: #8a8278;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78em;
  border-radius: 3px;
  letter-spacing: 0.02em;
}

/* 旁白文字（楼主沉默了11小时） */
.narrator {
  text-align: center;
  font-style: italic;
  color: #8a8278;
  padding: 1.2em 1em;
  font-family: "Noto Serif SC", serif;
  font-size: 0.88em;
  border-top: 1px dashed #d4c8ad;
  border-bottom: 1px dashed #d4c8ad;
  margin: 0;
  background: rgba(232, 220, 195, 0.08);
}

/* 圆圈ID */
.id-circle {
  color: #2c2825;
  letter-spacing: 0.03em;
  animation: dot-pulse 3s ease-in-out infinite;
}
@keyframes dot-pulse {
  0%, 100% { opacity: 0.85; }
  50% { opacity: 1; }
}

/* 视频描述块 */
.video-desc {
  margin: 1em 0;
  padding: 1em 1.2em;
  background: #f0eadd;
  border: 1px solid #d4c8ad;
  border-radius: 3px;
  font-family: "Noto Serif SC", serif;
  font-style: italic;
  color: #5a554d;
  line-height: 1.9;
  font-size: 0.94em;
}
.video-desc .head {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78em;
  color: #8a8278;
  font-style: normal;
  letter-spacing: 0.06em;
  margin-bottom: 0.6em;
  padding-bottom: 0.4em;
  border-bottom: 1px dashed #d4c8ad;
}
.video-desc p { margin: 0.45em 0; }

/* 实时回复 */
.realtime-feed {
  background: #2c2825;
  color: #d8d0bd;
  border-radius: 4px;
  margin: 0.5em 0 0;
  padding: 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82em;
}
.realtime-feed .header {
  background: #1a1815;
  padding: 0.5em 1em;
  font-size: 0.86em;
  color: #b8975a;
  letter-spacing: 0.06em;
  border-radius: 4px 4px 0 0;
}
.realtime-feed .item {
  padding: 0.5em 1em;
  border-top: 1px solid rgba(216, 208, 189, 0.08);
  display: flex;
  gap: 0.7em;
  align-items: baseline;
}
.realtime-feed .item:first-of-type { border-top: 0; }
.realtime-feed .item .ts {
  color: #8a8278;
  font-size: 0.86em;
  flex-shrink: 0;
}
.realtime-feed .item .who { color: #c9a96e; font-size: 0.86em; flex-shrink: 0; }
.realtime-feed .item .who.dots { color: #d8d0bd; }
.realtime-feed .item .text { color: #d8d0bd; flex: 1; }
.realtime-feed .item.complete .text { color: #5a554d; letter-spacing: 0.05em; }
.realtime-feed .more {
  padding: 0.6em 1em;
  text-align: center;
  color: #5a554d;
  font-style: italic;
  border-top: 1px solid rgba(216, 208, 189, 0.08);
  font-size: 0.82em;
}

/* 系统通知 */
.system-notice {
  background: linear-gradient(180deg, #fdfaf3, #f5f1ea);
  border: 1px solid #d8d0bd;
  border-radius: 6px;
  padding: 1.6em 1.4em;
  transition: all 1.8s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center center;
}
.system-notice.contracting {
  letter-spacing: -0.02em;
  transform: scaleX(0.94);
}
.system-stats {
  margin: 0.8em 0;
  padding: 0.8em 1em;
  background: rgba(44, 40, 37, 0.04);
  border-left: 2px solid #b8975a;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.86em;
  color: #5a554d;
}
.system-stats div { margin: 0.25em 0; }
.system-warning {
  margin: 1em 0;
  padding: 0.8em 1.1em;
  border: 1px dashed #c47b54;
  border-radius: 3px;
  color: #8a4a3a;
  background: rgba(196, 123, 84, 0.06);
  font-family: "Noto Serif SC", serif;
  text-align: center;
  font-size: 0.95em;
  letter-spacing: 0.02em;
}
.central-dot-wrap {
  text-align: center;
  margin: 2em 0 0.6em;
}
.central-dot {
  display: inline-block;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #2c2825;
  transition: width 4s cubic-bezier(0.4, 0, 0.2, 1),
              height 4s cubic-bezier(0.4, 0, 0.2, 1);
}
.central-dot.grown { width: 18px; height: 18px; }

/* 锁帖 + 未通过审核 */
.thread-locked-bar {
  text-align: center;
  padding: 1em;
  background: #f0eadd;
  border: 1px dashed #c4baa0;
  border-radius: 3px;
  color: #8a8278;
  font-family: "Noto Serif SC", serif;
  font-style: italic;
  font-size: 0.92em;
  margin-top: 1em;
}

.moderation-block {
  border: 1px dashed #c4baa0;
  background: #f0eadd;
  padding: 1.1em 1.2em;
  border-radius: 4px;
  text-align: center;
  color: #8a8278;
  font-size: 0.92em;
  cursor: pointer;
  transition: all 0.5s ease;
  font-family: "IBM Plex Mono", monospace;
  letter-spacing: 0.05em;
  margin-top: 0;
}
.moderation-block:hover {
  background: #e8e0cc;
  color: #5a554d;
}
.hidden-reply {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 1s ease, opacity 1.2s ease;
}
.hidden-reply.revealed {
  max-height: 4000px;
  opacity: 1;
}

/* 角落小圆点 */
.corner-dot {
  position: fixed;
  right: 16px; bottom: 18px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #2c2825;
  opacity: 0;
  transition: opacity 1.6s ease, transform 0.4s ease, width 0.6s, height 0.6s;
  cursor: pointer;
  z-index: 50;
}
.corner-dot.visible { opacity: 0.5; }
.corner-dot:hover { opacity: 0.85; transform: scale(1.3); }
.corner-dot::after {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 1px solid rgba(44, 40, 37, 0);
  animation: corner-pulse 4s ease-in-out infinite;
}
@keyframes corner-pulse {
  0%, 100% { transform: scale(0.8); opacity: 0; }
  50% { transform: scale(1.4); opacity: 0.25; }
}
.corner-tip {
  position: fixed;
  right: 32px; bottom: 14px;
  background: #2c2825;
  color: #f5f1ea;
  padding: 8px 12px;
  font-size: 0.78em;
  border-radius: 3px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s;
  font-family: "IBM Plex Mono", monospace;
  z-index: 51;
  letter-spacing: 0.02em;
}
.corner-tip.show { opacity: 1; }

/* 章节分隔 */
.thread-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  color: #c4baa0;
  margin: 2em 0;
  user-select: none;
}
.thread-divider::before, .thread-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: #e5dfd2;
}
.thread-divider span {
  font-family: "Noto Serif SC", serif;
  font-size: 0.82em;
  letter-spacing: 0.3em;
}

/* 最终页脚 */
footer.final {
  margin-top: 60px;
  padding: 28px 0 12px;
  text-align: center;
  border-top: 1px solid #e5dfd2;
}
footer.final .meta {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78em;
  color: #8a8278;
  line-height: 1.8;
}
footer.final .meta .small { font-size: 0.85em; opacity: 0.6; }

::selection { background: rgba(184, 151, 90, 0.28); color: #2c2825; }
a { color: inherit; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* 折叠/展开按钮 */
.thread-foldbar {
  text-align: center;
  padding: 0.8em;
  background: rgba(232, 220, 195, 0.18);
  border-top: 1px solid #ece5d5;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8em;
  color: #8a8278;
  cursor: pointer;
  transition: all 0.3s;
}
.thread-foldbar:hover { background: rgba(232, 220, 195, 0.4); color: #5a554d; }

/* ============================================================
 * 多页面拆分新增样式
 * ============================================================ */

/* 论坛首页 · 版块分组 */
.section-group {
  background: #fdfaf3;
  border: 1px solid #e5dfd2;
  border-radius: 6px;
  margin-bottom: 22px;
  overflow: hidden;
}
.section-group .group-head {
  background: linear-gradient(180deg, #f1eadc, #ebe2cd);
  border-bottom: 1px solid #d8d0bd;
  padding: 0.7em 1.1em;
  font-family: "Noto Serif SC", serif;
  font-weight: 600;
  font-size: 0.98em;
  color: #2c2825;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.section-group .group-head .small {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72em;
  color: #8a8278;
  font-weight: 400;
}

.board-row {
  display: grid;
  grid-template-columns: 44px 1fr 96px 152px;
  gap: 14px;
  align-items: center;
  padding: 0.85em 1.1em;
  border-top: 1px solid #ece5d5;
}
.board-row:first-child { border-top: 0; }
.board-row:hover { background: rgba(232, 220, 195, 0.18); }
@media (max-width: 640px) {
  .board-row {
    grid-template-columns: 38px 1fr;
    grid-template-rows: auto auto;
    row-gap: 6px;
    column-gap: 12px;
  }
  .board-row .board-stats,
  .board-row .board-last { grid-column: 2 / 3; }
}

.board-icon {
  width: 44px; height: 44px;
  border-radius: 4px;
  background: linear-gradient(135deg, #d4b88a, #b8975a);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Noto Serif SC", serif;
  font-size: 1.1em;
  font-weight: 600;
  flex-shrink: 0;
  user-select: none;
}
.board-icon.muted { background: linear-gradient(135deg, #c4baa0, #a8a08e); }
.board-icon.special { background: #2c2825; color: #f5f1ea; }
.board-icon.dim { background: linear-gradient(135deg, #c8c8c0, #a8a8a0); }

.board-info .board-title {
  font-family: "Noto Serif SC", serif;
  font-weight: 600;
  font-size: 1.02em;
  color: #2c2825;
  text-decoration: none;
  display: inline-block;
}
.board-info .board-title:hover { color: #8a6f3a; }
.board-info .board-title.special { color: #8a6f3a; }
.board-info .board-desc {
  font-size: 0.82em;
  color: #8a8278;
  margin-top: 2px;
  line-height: 1.5;
}
.board-info .board-tags {
  margin-top: 4px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72em;
  color: #a39a8a;
}
.board-stats {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78em;
  color: #8a8278;
  text-align: right;
  line-height: 1.55;
}
.board-stats .num { color: #5a554d; font-weight: 500; }
.board-last {
  font-size: 0.78em;
  color: #8a8278;
  line-height: 1.5;
}
.board-last .post {
  color: #5a554d;
  font-family: "Noto Serif SC", serif;
  display: block;
  font-size: 0.96em;
  margin-bottom: 1px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.board-last .post a { color: inherit; text-decoration: none; }
.board-last .post a:hover { color: #8a6f3a; }
.board-last .ts { font-family: "IBM Plex Mono", monospace; font-size: 0.86em; }

/* 站点公告条 */
.site-notice {
  background: #fdfaf3;
  border: 1px solid #e5dfd2;
  border-left: 3px solid #b8975a;
  border-radius: 4px;
  padding: 0.9em 1.1em;
  font-size: 0.9em;
  color: #5a554d;
  margin-bottom: 22px;
  line-height: 1.75;
}
.site-notice strong { color: #8a6f3a; }
.site-notice .lbl {
  display: inline-block;
  background: #b8975a;
  color: #fff;
  padding: 1px 8px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78em;
  letter-spacing: 0.08em;
  border-radius: 2px;
  margin-right: 8px;
}

/* 板块说明卡 */
.board-intro {
  background: #fdfaf3;
  border: 1px solid #e5dfd2;
  border-radius: 6px;
  padding: 1em 1.2em;
  margin-bottom: 22px;
  font-size: 0.9em;
  color: #5a554d;
  line-height: 1.8;
}
.board-intro .row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 18px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78em;
  color: #8a8278;
  margin-top: 0.55em;
  padding-top: 0.55em;
  border-top: 1px dashed #e5dfd2;
}
.board-intro .row span strong { color: #5a554d; font-weight: 500; }

/* 板块功能条 */
.board-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  flex-wrap: wrap;
  gap: 8px;
}
.board-toolbar .btn {
  font-family: "Noto Serif SC", serif;
  background: #2c2825;
  color: #f5f1ea;
  padding: 0.45em 1.1em;
  border-radius: 3px;
  font-size: 0.88em;
  text-decoration: none;
  transition: background 0.25s;
  border: 0;
  cursor: pointer;
}
.board-toolbar .btn:hover { background: #1a1815; }
.board-toolbar .filters {
  display: flex;
  gap: 4px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8em;
}
.board-toolbar .filters a {
  color: #8a8278;
  padding: 4px 10px;
  border-radius: 3px;
  text-decoration: none;
}
.board-toolbar .filters a:hover { color: #2c2825; background: rgba(184, 151, 90, 0.08); }
.board-toolbar .filters a.active { color: #8a6f3a; background: rgba(184, 151, 90, 0.12); }

/* 帖子列表（版块页） */
.thread-list {
  background: #fdfaf3;
  border: 1px solid #e5dfd2;
  border-radius: 6px;
  overflow: hidden;
}
.thread-list .list-head {
  background: linear-gradient(180deg, #f1eadc, #ebe2cd);
  border-bottom: 1px solid #d8d0bd;
  padding: 0.6em 1.1em;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.74em;
  letter-spacing: 0.08em;
  color: #8a8278;
  text-transform: uppercase;
  display: grid;
  grid-template-columns: 1fr 84px 84px 140px;
  gap: 12px;
  align-items: center;
}
@media (max-width: 768px) {
  .thread-list .list-head { display: none; }
}
.thread-row {
  display: grid;
  grid-template-columns: 1fr 84px 84px 140px;
  gap: 12px;
  align-items: center;
  padding: 0.85em 1.1em;
  border-top: 1px solid #ece5d5;
  transition: background 0.25s;
}
.thread-row:hover { background: rgba(232, 220, 195, 0.18); }
@media (max-width: 768px) {
  .thread-row {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 0.9em 1.1em;
  }
}

.thread-row .tr-main {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
  min-width: 0;
}
.thread-row .tr-title {
  font-family: "Noto Serif SC", serif;
  font-weight: 500;
  font-size: 1em;
  color: #2c2825;
  text-decoration: none;
  line-height: 1.45;
}
.thread-row .tr-title:hover { color: #8a6f3a; }
.thread-row .tr-author {
  font-size: 0.82em;
  color: #8a8278;
  display: block;
  width: 100%;
  margin-top: 2px;
}
.thread-row .tr-author .by-mod { color: #5a7388; }
.thread-row .tr-author .by-op { color: #8a6f3a; }
.thread-row .tr-author .by-system { color: #2c2825; font-family: "IBM Plex Mono", monospace; font-size: 0.94em; }

.thread-row .tr-stat {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82em;
  color: #8a8278;
  text-align: center;
}
.thread-row .tr-stat .n { color: #5a554d; font-weight: 500; display: block; }
.thread-row .tr-stat .lbl { font-size: 0.78em; opacity: 0.7; }
@media (max-width: 768px) {
  .thread-row .tr-stat {
    text-align: left;
    display: inline-block;
    margin-right: 14px;
  }
  .thread-row .tr-stat .n,
  .thread-row .tr-stat .lbl { display: inline; }
  .thread-row .tr-stat .lbl::before { content: " "; }
  .thread-row .tr-last { font-size: 0.78em; }
}
.thread-row .tr-last {
  font-size: 0.78em;
  color: #8a8278;
  line-height: 1.5;
  min-width: 0;
}
.thread-row .tr-last .who {
  color: #5a554d;
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.thread-row .tr-last .ts { font-family: "IBM Plex Mono", monospace; font-size: 0.92em; }

/* 分页 */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  margin-top: 24px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.84em;
}
.pagination a, .pagination span {
  padding: 5px 11px;
  border: 1px solid #e5dfd2;
  background: #fdfaf3;
  color: #5a554d;
  text-decoration: none;
  border-radius: 3px;
  min-width: 32px;
  text-align: center;
}
.pagination a:hover { background: rgba(184, 151, 90, 0.12); color: #2c2825; border-color: #d4c8ad; }
.pagination .current {
  background: #2c2825;
  color: #f5f1ea;
  border-color: #2c2825;
}
.pagination .disabled { color: #c4baa0; cursor: not-allowed; }

/* 帖内翻页导航 */
.thread-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 12px;
  margin-top: 36px;
  padding: 16px 0;
  border-top: 1px solid #e5dfd2;
  border-bottom: 1px solid #e5dfd2;
}
.thread-nav .nav-link {
  text-decoration: none;
  color: #5a554d;
  font-size: 0.86em;
  line-height: 1.5;
  display: block;
  min-width: 0;
}
.thread-nav .nav-link.prev { text-align: left; }
.thread-nav .nav-link.next { text-align: right; }
.thread-nav .nav-link.up { text-align: center; align-self: center; }
.thread-nav .nav-link:hover .title { color: #8a6f3a; }
.thread-nav .nav-link .dir {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.72em;
  letter-spacing: 0.1em;
  color: #8a8278;
  text-transform: uppercase;
  display: block;
}
.thread-nav .nav-link .title {
  font-family: "Noto Serif SC", serif;
  color: #2c2825;
  display: block;
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.thread-nav .nav-link.up .title { color: #5a554d; }
.thread-nav .nav-link.disabled { opacity: 0.4; pointer-events: none; }
@media (max-width: 640px) {
  .thread-nav {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .thread-nav .nav-link.up,
  .thread-nav .nav-link.prev,
  .thread-nav .nav-link.next { text-align: left; }
}

/* 回复框（占位） */
.reply-box {
  background: #fdfaf3;
  border: 1px solid #e5dfd2;
  border-radius: 6px;
  padding: 1em 1.2em;
  margin-top: 28px;
  color: #8a8278;
  font-size: 0.88em;
  line-height: 1.7;
}
.reply-box .lbl {
  font-family: "Noto Serif SC", serif;
  font-weight: 600;
  color: #2c2825;
  margin-bottom: 0.4em;
}
.reply-box .pseudo-input {
  margin-top: 0.6em;
  background: #f5f1ea;
  border: 1px dashed #d4c8ad;
  border-radius: 3px;
  padding: 0.9em 1em;
  color: #a39a8a;
  font-style: italic;
  min-height: 60px;
}
.reply-box .actions {
  margin-top: 0.7em;
  display: flex;
  gap: 8px;
  align-items: center;
}
.reply-box .actions button {
  background: #c4baa0;
  color: #fff;
  border: 0;
  padding: 6px 14px;
  font-family: "Noto Serif SC", serif;
  font-size: 0.86em;
  border-radius: 3px;
  cursor: not-allowed;
  opacity: 0.7;
}
.reply-box .actions .hint {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.76em;
  color: #a39a8a;
}

/* 主题元信息（帖子页头部下） */
.thread-meta-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
  font-size: 0.84em;
  color: #8a8278;
}
.thread-meta-bar .ops {
  display: flex;
  gap: 4px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.94em;
}
.thread-meta-bar .ops a {
  color: #8a8278;
  padding: 3px 9px;
  border-radius: 3px;
  text-decoration: none;
  border: 1px solid transparent;
}
.thread-meta-bar .ops a:hover {
  color: #2c2825;
  border-color: #d4c8ad;
  background: #fdfaf3;
}
.thread-meta-bar .stat {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.94em;
}

/* ============================================================
 * 手机端优化（追加段）
 * 仅通过媒体查询覆盖与补充，不影响桌面端表现
 * ============================================================ */

/* ---------- 全局兜底：长串符号/中文不撑破布局 ---------- */
.post-body,
.reply,
.realtime-feed,
.system-stats,
.thread-row .tr-main,
.video-desc,
.board-info,
.board-last {
  overflow-wrap: break-word;
  word-break: break-word;
}

/* 帖内图片自适应（兜底，即使 HTML 没有 inline style 也安全） */
.post-body img {
  max-width: 100%;
  height: auto;
  border-radius: 3px;
  display: block;
  margin: 0.7em 0;
}

/* 全局触摸优化 */
html { -webkit-tap-highlight-color: transparent; text-size-adjust: 100%; }
a, button, .moderation-block, .corner-dot {
  -webkit-tap-highlight-color: rgba(184, 151, 90, 0.18);
}

/* hidden-reply 放大上限，防止手机长内容被切 */
.hidden-reply.revealed { max-height: 12000px; }

/* ============================================================
 * 主要断点 ≤ 640px
 * ============================================================ */
@media (max-width: 640px) {

  /* ---------- 基础排版 ---------- */
  body {
    font-size: 16px;
    line-height: 1.8;
  }
  .container {
    padding: 18px 14px calc(56px + env(safe-area-inset-bottom));
  }

  /* 进度条略加厚 */
  .progress-bar { height: 2px; }

  /* ---------- 顶部导航条 ---------- */
  .forum-mast .inner {
    padding: 10px 14px;
    gap: 10px;
  }
  .forum-mast .logo {
    width: 30px; height: 30px;
    font-size: 13px;
  }
  .forum-mast .label {
    font-size: 9px;
    letter-spacing: 0.14em;
  }
  .forum-mast .title {
    font-size: 14px;
    max-width: 58vw;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .user-area a {
    font-size: 12px;
    padding: 6px 4px;
    min-height: 32px;
    display: inline-flex;
    align-items: center;
  }
  .user-area .sep { font-size: 11px; }

  /* ---------- 面包屑 ---------- */
  .breadcrumb {
    font-size: 0.76em;
    margin-bottom: 0.7em;
    line-height: 1.75;
  }
  .breadcrumb .sep { margin: 0 0.3em; }

  /* ---------- 版块/帖子页大标题 ---------- */
  .forum-header { margin-bottom: 22px; }
  .forum-header h1 { font-size: 1.55em; }
  .forum-header .sub { font-size: 0.9em; line-height: 1.7; }
  .forum-header .archive-tag {
    font-size: 0.68em;
    padding: 3px 8px;
  }

  /* ---------- 顶部 disclaimer ---------- */
  .top-disclaimer {
    padding: 0.9em 1em;
    font-size: 0.92em;
    line-height: 1.85;
    margin: 14px 0 22px;
  }

  /* ---------- 站点公告 ---------- */
  .site-notice {
    padding: 0.85em 1em;
    font-size: 0.9em;
    margin-bottom: 18px;
    line-height: 1.75;
  }
  .site-notice .lbl {
    margin-right: 6px;
  }

  /* ---------- 板块介绍 ---------- */
  .board-intro {
    padding: 0.95em 1em;
    font-size: 0.92em;
  }
  .board-intro .row {
    flex-direction: column;
    gap: 3px;
    font-size: 0.76em;
  }

  /* ---------- 工具栏 ---------- */
  .board-toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .board-toolbar .btn {
    text-align: center;
    padding: 0.7em 1.1em;
    font-size: 0.92em;
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .board-toolbar .filters {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 2px;
    scrollbar-width: none;
  }
  .board-toolbar .filters::-webkit-scrollbar { display: none; }
  .board-toolbar .filters a {
    flex-shrink: 0;
    padding: 6px 12px;
    min-height: 32px;
    display: inline-flex;
    align-items: center;
  }

  /* ---------- 主题列表（版块页） ---------- */
  .thread-row {
    padding: 0.95em 1em;
  }
  .thread-row .tr-title {
    font-size: 1.02em;
    line-height: 1.5;
  }
  .thread-row .tr-author {
    font-size: 0.78em;
  }
  .thread-row .tr-stat {
    font-size: 0.78em;
  }
  .thread-row .tr-last { margin-top: 2px; }

  /* ---------- 帖子卡片 / 楼层 ---------- */
  .thread-card { margin-bottom: 26px; border-radius: 5px; }
  .thread-head { padding: 0.9em 1em; }
  .thread-head h2 {
    font-size: 1.1em;
    line-height: 1.5;
  }
  .thread-head .meta {
    font-size: 0.76em;
    gap: 0.2em 0.8em;
  }

  .reply { padding: 1em 1em; }
  .reply.op-post { padding-top: 1.2em; }

  .reply-head {
    gap: 0.6em;
    margin-bottom: 0.55em;
  }
  .avatar {
    width: 32px; height: 32px;
    font-size: 0.9em;
  }
  .reply-meta { font-size: 0.84em; }
  .reply-meta .row1 { gap: 0.25em 0.6em; }
  .timestamp { font-size: 0.8em; }
  .floor-num { font-size: 0.83em; }

  /* ---------- 主题元信息条 ---------- */
  .thread-meta-bar {
    font-size: 0.82em;
    gap: 8px;
    margin-bottom: 14px;
    align-items: flex-start;
  }
  .thread-meta-bar .ops {
    gap: 2px;
    flex-wrap: wrap;
  }
  .thread-meta-bar .ops a {
    padding: 6px 10px;
    min-height: 32px;
    display: inline-flex;
    align-items: center;
  }

  /* ---------- 引用块 ---------- */
  blockquote.q {
    padding: 0.6em 0.95em;
    margin: 0.85em 0;
  }

  /* ---------- 视频描述块 ---------- */
  .video-desc {
    padding: 0.9em 1em;
    font-size: 0.92em;
    line-height: 1.85;
  }
  .video-desc .head { font-size: 0.74em; }

  /* ---------- 实时回复 feed（关键） ---------- */
  .realtime-feed { font-size: 0.78em; }
  .realtime-feed .header {
    font-size: 0.82em;
    padding: 0.55em 0.9em;
    letter-spacing: 0.04em;
    line-height: 1.6;
  }
  .realtime-feed .item {
    padding: 0.65em 0.9em;
    flex-wrap: wrap;       /* 关键：允许换行 */
    gap: 0.3em 0.7em;
  }
  .realtime-feed .item .ts { font-size: 0.82em; }
  .realtime-feed .item .who { font-size: 0.84em; }
  .realtime-feed .item .text {
    flex: 1 1 100%;        /* 关键：正文换到下一行 */
    margin-top: 3px;
    line-height: 1.6;
  }
  .realtime-feed .more {
    padding: 0.65em 0.9em;
    font-size: 0.82em;
  }

  /* ---------- 系统通知 ---------- */
  .system-notice { padding: 1.2em 1em; }
  .system-stats {
    padding: 0.75em 0.85em;
    font-size: 0.8em;
  }
  .system-stats div {
    margin: 0.35em 0;
    line-height: 1.7;
  }
  .system-warning {
    font-size: 0.92em;
    padding: 0.8em 0.95em;
    line-height: 1.7;
  }

  /* ---------- 帖内翻页 ---------- */
  .thread-nav {
    margin-top: 28px;
    padding: 12px 0;
    gap: 6px;
  }
  .thread-nav .nav-link {
    padding: 8px 4px;
    min-height: 44px;
    font-size: 0.86em;
  }

  /* ---------- 回复框 ---------- */
  .reply-box {
    padding: 0.95em 1em;
    margin-top: 20px;
  }
  .reply-box .pseudo-input {
    min-height: 52px;
    padding: 0.85em 0.95em;
  }
  .reply-box .actions {
    flex-direction: column;
    align-items: stretch;
    gap: 7px;
  }
  .reply-box .actions button {
    padding: 9px 14px;
    width: 100%;
    min-height: 38px;
  }
  .reply-box .actions .hint { text-align: center; }

  /* ---------- 分页 ---------- */
  .pagination {
    margin-top: 18px;
    gap: 5px;
  }
  .pagination a,
  .pagination span {
    padding: 7px 13px;
    min-width: 36px;
    min-height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  /* ---------- 锁帖条 / 审核块 ---------- */
  .thread-locked-bar {
    padding: 0.9em;
    font-size: 0.88em;
  }
  .moderation-block {
    padding: 1.1em 1em;
    min-height: 56px;
    font-size: 0.86em;
    display: flex;
    align-items: center;
    justify-content: center;
    letter-spacing: 0.04em;
  }

  /* ---------- 章节分隔 ---------- */
  .thread-divider {
    gap: 10px;
    margin: 1.6em 0;
  }
  .thread-divider span {
    font-size: 0.76em;
    letter-spacing: 0.22em;
  }

  /* ---------- 页脚 ---------- */
  footer.final {
    margin-top: 40px;
    padding: 22px 0 10px;
  }
  footer.final .meta { font-size: 0.74em; }

  /* ---------- 首页板块行 ---------- */
  .section-group .group-head {
    padding: 0.7em 1em;
    font-size: 0.94em;
  }
  .board-row {
    padding: 0.9em 1em;
    column-gap: 10px;
    row-gap: 6px;
  }
  .board-icon {
    width: 38px; height: 38px;
    font-size: 1em;
    grid-row: 1 / 2;
  }
  .board-info .board-title {
    font-size: 0.98em;
    line-height: 1.45;
  }
  .board-info .board-desc {
    font-size: 0.8em;
    line-height: 1.55;
    margin-top: 3px;
  }
  .board-info .board-tags {
    font-size: 0.7em;
    margin-top: 4px;
  }
  .board-stats {
    text-align: left;       /* 关键：手机端改回左对齐 */
    font-size: 0.76em;
    line-height: 1.5;
  }
  .board-last {
    font-size: 0.76em;
    line-height: 1.5;
  }

  /* ---------- 角落小圆点（iOS 安全区 + 扩大触摸区） ---------- */
  .corner-dot {
    right: 14px;
    bottom: calc(14px + env(safe-area-inset-bottom));
  }
  .corner-dot::before {
    content: "";
    position: absolute;
    inset: -16px;            /* 扩大热区，但视觉点保持 6px */
  }
  .corner-tip {
    right: 30px;
    bottom: calc(10px + env(safe-area-inset-bottom));
    max-width: calc(100vw - 56px);
    font-size: 0.74em;
  }
}

/* ============================================================
 * 极窄屏 ≤ 380px（小屏老款手机）
 * ============================================================ */
@media (max-width: 380px) {
  body { font-size: 15.5px; }
  .container {
    padding: 14px 12px calc(48px + env(safe-area-inset-bottom));
  }

  .forum-mast .inner { padding: 9px 12px; gap: 8px; }
  .forum-mast .logo { width: 28px; height: 28px; font-size: 12px; }
  .forum-mast .label { display: none; }      /* 极窄屏隐藏英文 LABEL */
  .forum-mast .title { font-size: 13.5px; max-width: 52vw; }
  .user-area a { font-size: 11.5px; padding: 6px 3px; }

  .forum-header h1 { font-size: 1.42em; }
  .thread-head h2 { font-size: 1.05em; }
  .thread-head, .reply { padding-left: 0.85em; padding-right: 0.85em; }
  .reply-box { padding-left: 0.85em; padding-right: 0.85em; }

  .breadcrumb { font-size: 0.72em; }
  .top-disclaimer, .site-notice, .board-intro { padding: 0.85em 0.9em; }

  .realtime-feed { font-size: 0.74em; }
  .system-stats { font-size: 0.76em; padding: 0.65em 0.75em; }
}

/* ============================================================
 * 横屏小高度手机（不让 sticky header 吃掉太多视野）
 * ============================================================ */
@media (max-width: 900px) and (max-height: 480px) and (orientation: landscape) {
  .forum-mast .inner { padding: 6px 14px; }
  .forum-mast .logo { width: 26px; height: 26px; font-size: 12px; }
  .forum-mast .label { font-size: 8px; }
  .forum-mast .title { font-size: 13px; }
  .container { padding-top: 14px; }
}

/* ============================================================
 * 高分屏（视网膜）下的微调
 * ============================================================ */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  body { -webkit-font-smoothing: antialiased; }
  .badge { letter-spacing: 0.035em; }
}