* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  max-width: 720px;
  margin: 0 auto;
  padding: 1.5rem;
  color: #1a1a1a;
  background: #fafafa;
  line-height: 1.5;
}

header {
  border-bottom: 1px solid #e0e0e0;
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}
header h1 { margin: 0; font-size: 1.5rem; }
header h1 a { color: inherit; text-decoration: none; }
header h1 a:hover { text-decoration: underline; }
.tagline { margin: 0.25rem 0 0; color: #666; font-size: 0.9rem; }

nav { margin-bottom: 1rem; }
nav a { color: #0066cc; text-decoration: none; font-size: 0.9rem; }
nav a:hover { text-decoration: underline; }

.hidden { display: none !important; }

h2 { font-size: 1.1rem; margin: 0 0 1rem; }

.forum-list ul, #topics { list-style: none; padding: 0; margin: 0; }
.forum-list li, #topics li {
  padding: 0.75rem;
  border-bottom: 1px solid #eee;
  background: #fff;
}
.forum-list li:hover, #topics li:hover { background: #f8f8f8; }
.forum-list a, #topics a {
  color: inherit;
  text-decoration: none;
  display: block;
}
.forum-list .meta, #topics .meta {
  font-size: 0.8rem;
  color: #888;
  margin-top: 0.25rem;
}

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: #1a1a1a;
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.btn:hover { background: #333; }

#thread { background: #fff; padding: 1rem; margin-bottom: 1rem; border: 1px solid #eee; }
#thread h3 { margin: 0 0 0.5rem; font-size: 1.1rem; }
#thread .meta { font-size: 0.8rem; color: #888; margin-bottom: 0.75rem; }
#thread .body { white-space: pre-wrap; }

#replies .reply {
  background: #fff;
  padding: 1rem;
  margin-bottom: 0.5rem;
  border: 1px solid #eee;
}
#replies .reply .meta { font-size: 0.8rem; color: #888; margin-bottom: 0.5rem; }
#replies .reply .body { white-space: pre-wrap; }

form textarea, form input[type="text"] {
  width: 100%;
  padding: 0.5rem;
  margin-bottom: 0.5rem;
  border: 1px solid #ddd;
  font-family: inherit;
  font-size: 1rem;
}
form button {
  padding: 0.5rem 1rem;
  background: #1a1a1a;
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
}

.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  padding: 1rem;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.forum-section .post h3 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}
.forum-section .post .meta {
  font-size: 0.8rem;
  color: #888;
  margin: 0 0 0.5rem;
}
.forum-section .post .body {
  margin: 0;
  font-size: 0.9rem;
  color: #444;
  line-height: 1.6;
}

.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  margin: 0;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.post .meta { font-size: 0.8rem; color: #888; margin: 0 0 0.5rem; }
.post .body { margin: 0; font-size: 0.9rem; color: #444; line-height: 1.6; }

.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  padding: 1rem;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.post .meta { font-size: 0.8rem; color: #888; margin: 0 0 0.5rem; }
.post .body { margin: 0; font-size: 0.9rem; color: #444; line-height: 1.6; }

.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  padding: 1rem;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.post .meta { font-size: 0.8rem; color: #888; margin: 0 0 0.5rem; }
.post .body { margin: 0; font-size: 0.9rem; color: #444; line-height: 1.6; }

.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  padding: 1rem;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.post .meta { font-size: 0.8rem; color: #888; margin: 0 0 0.5rem; }
.post .body { margin: 0; font-size: 0.9rem; color: #444; line-height: 1.6; }

.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  margin: 0;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.forum-section .post h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}
.forum-section .post .meta {
  font-size: 0.8rem;
  color: #888;
  margin-bottom: 0.5rem;
}
.forum-section .post .body {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* 纯静态版块与帖子 */
.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  margin: 0;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.post .meta { font-size: 0.8rem; color: #888; margin: 0 0 0.5rem; }
.post .body { margin: 0; font-size: 0.9rem; color: #444; line-height: 1.6; }

/* 纯静态版块与帖子 */
.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  margin: 0;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.post .meta { font-size: 0.8rem; color: #888; margin: 0 0 0.5rem; }
.post .body { margin: 0; font-size: 0.9rem; color: #444; line-height: 1.6; }

/* 纯静态版块与帖子 */
.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  margin: 0;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.post .meta { font-size: 0.8rem; color: #888; margin: 0 0 0.5rem; }
.post .body { margin: 0; font-size: 0.9rem; color: #444; line-height: 1.6; }

/* 纯静态版块与帖子 */
.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  margin: 0;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.post .meta { font-size: 0.8rem; color: #888; margin: 0 0 0.5rem; }
.post .body { margin: 0; font-size: 0.9rem; color: #444; line-height: 1.6; }

/* 纯静态版块与帖子 */
.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  margin: 0;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.forum-section .post h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}
.forum-section .post .meta {
  font-size: 0.8rem;
  color: #888;
  margin-bottom: 0.5rem;
}
.forum-section .post .body {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* 纯静态版块与帖子 */
.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  padding: 1rem;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.post .meta { font-size: 0.8rem; color: #888; margin: 0 0 0.5rem; }
.post .body { margin: 0; font-size: 0.9rem; color: #444; line-height: 1.6; }

/* 纯静态版块与帖子 */
.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  margin: 0;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.forum-section .post h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}
.forum-section .post .meta {
  font-size: 0.8rem;
  color: #888;
  margin-bottom: 0.5rem;
}
.forum-section .post .body {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
}

.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  margin: 0;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}
.post .meta {
  font-size: 0.8rem;
  color: #888;
  margin-bottom: 0.5rem;
}
.post .body {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
}

.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  padding: 1rem;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.post .meta { font-size: 0.8rem; color: #888; margin: 0 0 0.5rem; }
.post .body { margin: 0; font-size: 0.9rem; color: #444; line-height: 1.6; }

/* 纯静态版块与帖子 */
.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  padding: 1rem;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.post .meta { font-size: 0.8rem; color: #888; margin: 0 0 0.5rem; }
.post .body { margin: 0; font-size: 0.9rem; color: #444; line-height: 1.6; }

/* 纯静态版块与帖子 */
.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  margin: 0;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.post .meta { font-size: 0.8rem; color: #888; margin: 0 0 0.5rem; }
.post .body { margin: 0; font-size: 0.9rem; color: #444; line-height: 1.6; }

/* 纯静态版块与帖子 */
.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  margin: 0;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
}
.post .meta {
  font-size: 0.8rem;
  color: #888;
  margin-bottom: 0.5rem;
}
.post .body {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* 纯静态版块与帖子 */
.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  margin: 0;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 { margin: 0 0 0.5rem; font-size: 1rem; }
.post .meta { font-size: 0.8rem; color: #888; margin-bottom: 0.5rem; }
.post .body { margin: 0; line-height: 1.6; }

/* 纯静态版块与帖子 */
.forum-section {
  margin-bottom: 2rem;
  background: #fff;
  border: 1px solid #eee;
  overflow: hidden;
}
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  padding: 1rem;
  font-size: 1.1rem;
  border-bottom: 1px solid #eee;
}
.section-cover {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 4px;
}
.forum-section .post {
  padding: 1rem;
  border-top: 1px solid #f0f0f0;
}
.post-cover {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}
.post h3 { margin: 0 0 0.25rem; font-size: 1rem; }
.post .meta { font-size: 0.8rem; color: #888; margin: 0 0 0.5rem; }
.post .body { margin: 0; font-size: 0.9rem; color: #444; line-height: 1.6; }