:root {
  --primary-bg: #FAF8F5; /* 奶白色主調 */
  --secondary: #8C7A6B;  /* 單一副色 (文字與邊框) */
  --secondary-tint: rgba(140, 122, 107, 0.06);
  --secondary-tint-hover: rgba(140, 122, 107, 0.12);
  --secondary-border: rgba(140, 122, 107, 0.25);
  --secondary-shadow: rgba(140, 122, 107, 0.08);
}

/* 全局重設與字體排版 */
*, *::before, *::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  max-width: 100vw;
  overflow-x: hidden; 
  background-color: var(--primary-bg);
  color: var(--secondary);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--secondary);
  text-decoration: none;
  transition: opacity 0.2s ease, color 0.2s ease;
}

a:hover, a:focus {
  opacity: 0.8;
}

/* 媒體元素 */
img, video, iframe {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
}

/* 經典 Box-View 現代升級 */
.site-wrapper {
  padding: 10px 0;
}

.box-view {
  background-color: var(--primary-bg);
  border: 2px solid var(--secondary);
  border-radius: 24px; 
  margin: 24px auto;
  max-width: 1140px;
  padding: 32px;
  box-shadow: 0 10px 30px var(--secondary-shadow);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

/* Header 頁首設計 */
.site-header {
  padding: 24px 36px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.branding .site-title {
  margin: 0;
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.branding .site-title a {
  color: var(--secondary);
}

.branding .site-description {
  margin: 6px 0 0 0;
  font-size: 0.95rem;
  opacity: 0.85;
  font-weight: 400;
}

/* 導覽功能選單 */
.main-navigation ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.main-navigation li a {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 50px;
  border: 1.5px solid transparent;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.25s ease;
}

.main-navigation li a:hover,
.main-navigation li.current-menu-item > a {
  border-color: var(--secondary);
  background-color: var(--secondary-tint);
}

/* 手機版漢堡選單按鈕 */
.menu-toggle {
  display: none;
  background: transparent;
  border: 2px solid var(--secondary);
  border-radius: 12px;
  padding: 8px 12px;
  cursor: pointer;
  flex-direction: column;
  gap: 4px;
  justify-content: center;
  align-items: center;
}

.hamburger-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--secondary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* 文章網格 (Modern Grid) */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.post-card {
  background-color: var(--primary-bg);
  border: 2px solid var(--secondary-border);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.post-card:hover {
  transform: translateY(-4px);
  border-color: var(--secondary);
  box-shadow: 0 12px 28px var(--secondary-shadow);
}

.post-card-thumbnail {
  width: 100%;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background-color: var(--secondary-tint);
}

.post-card-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  transition: transform 0.4s ease;
}

.post-card:hover .post-card-thumbnail img {
  transform: scale(1.04);
}

.post-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.post-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.825rem;
  margin-bottom: 12px;
  opacity: 0.9;
}

.post-card-category a {
  background-color: var(--secondary-tint);
  border: 1px solid var(--secondary-border);
  padding: 3px 10px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.8rem;
}

.post-card-title {
  margin: 0 0 12px 0;
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1.35;
}

.post-card-title a {
  color: var(--secondary);
}

.post-card-excerpt {
  font-size: 0.95rem;
  margin-bottom: 20px;
  flex-grow: 1;
  opacity: 0.9;
}

.post-card-excerpt p {
  margin: 0;
}

.post-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1.5px solid var(--secondary-tint-hover);
  font-size: 0.875rem;
  font-weight: 600;
}

.btn-read-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 50px;
  border: 1.5px solid var(--secondary);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.25s ease;
}

.btn-read-more:hover {
  background-color: var(--secondary);
  color: var(--primary-bg);
  opacity: 1;
}

.post-card-author {
  opacity: 0.8;
  font-weight: 500;
}

/* 分頁 (Pagination) */
.pagination-container {
  margin-top: 40px;
  display: flex;
  justify-content: center;
}

.pagination-container .nav-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.pagination-container .page-numbers {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border-radius: 12px;
  border: 1.5px solid var(--secondary-border);
  font-weight: 600;
  font-size: 0.9rem;
}

.pagination-container .page-numbers.current,
.pagination-container .page-numbers:hover {
  background-color: var(--secondary);
  color: var(--primary-bg);
  border-color: var(--secondary);
}

/* 單篇文章頁 (Single Post) */
.single-post-container {
  padding: 40px 48px;
}

.single-article .entry-header {
  margin-bottom: 28px;
  text-align: center;
}

.entry-meta-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 0.9rem;
  margin-bottom: 12px;
}

.entry-category a {
  background-color: var(--secondary-tint);
  border: 1px solid var(--secondary-border);
  padding: 4px 14px;
  border-radius: 50px;
  font-weight: 600;
}

.entry-title {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.25;
  margin: 12px 0 20px 0;
}

.entry-author-bar {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background-color: var(--secondary-tint);
  padding: 8px 18px;
  border-radius: 50px;
  border: 1px solid var(--secondary-border);
}

.author-avatar img {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--secondary);
}

.author-info {
  display: flex;
  flex-direction: column;
  text-align: left;
  font-size: 0.85rem;
}

.author-name {
  font-weight: 700;
}

.post-time {
  opacity: 0.8;
  font-size: 0.78rem;
}

.single-featured-wrapper {
  margin: 32px 0;
  border-radius: 20px;
  overflow: hidden;
  border: 2px solid var(--secondary-border);
}

.single-featured-image {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  border-radius: 0;
}

.entry-content {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 32px;
}

.entry-content p {
  margin-bottom: 1.5em;
}

.entry-content blockquote {
  margin: 24px 0;
  padding: 18px 24px;
  border-left: 4px solid var(--secondary);
  background-color: var(--secondary-tint);
  border-radius: 0 16px 16px 0;
  font-style: italic;
}

.entry-footer {
  padding-top: 20px;
  border-top: 1.5px solid var(--secondary-border);
  margin-bottom: 30px;
}

.entry-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.9rem;
}

.tags-label {
  font-weight: 700;
}

.entry-tags a {
  padding: 4px 12px;
  border-radius: 50px;
  border: 1px solid var(--secondary-border);
  background-color: var(--secondary-tint);
  font-size: 0.825rem;
}

/* 文章上下頁導覽 */
.post-navigation {
  margin: 32px 0;
  padding: 20px 0;
  border-top: 1.5px solid var(--secondary-border);
  border-bottom: 1.5px solid var(--secondary-border);
}

.nav-links {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-weight: 600;
  font-size: 0.95rem;
}

/* 留言區塊 (Comments) */
.comments-area {
  margin-top: 40px;
  padding-top: 20px;
}

.comments-title, .comment-reply-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--secondary-border);
  padding-bottom: 10px;
}

.comment-list {
  list-style: none;
  padding: 0;
  margin: 0 0 40px 0;
}

.comment-list li.comment {
  background-color: var(--secondary-tint);
  border: 1.5px solid var(--secondary-border);
  border-radius: 18px;
  padding: 20px;
  margin-bottom: 20px;
}

.comment-list .comment-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.comment-author img {
  border-radius: 50%;
  margin-right: 10px;
  float: left;
}

.comment-meta {
  font-size: 0.85rem;
  opacity: 0.8;
  margin-bottom: 10px;
}

.reply a {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 50px;
  border: 1.5px solid var(--secondary);
  font-size: 0.825rem;
  font-weight: 600;

}

.reply a:hover {
  background-color: var(--secondary);
  color: var(--primary-bg);
}

/* 表單與輸入框 */
.comment-form-styled input[type="text"],
.comment-form-styled input[type="email"],
.comment-form-styled input[type="url"],
.comment-form-styled textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--secondary-border);
  border-radius: 14px;
  background-color: var(--primary-bg);
  color: var(--secondary);
  font-family: inherit;
  font-size: 0.95rem;
  margin-top: 6px;
  margin-bottom: 16px;
  transition: border-color 0.25s ease;
}

.comment-form-styled input:focus,
.comment-form-styled textarea:focus {
  outline: none;
  border-color: var(--secondary);
}

.form-submit input[type="submit"] {
  background-color: var(--secondary);
  color: var(--primary-bg);
  border: 2px solid var(--secondary);
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
}

.form-submit input[type="submit"]:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

/* Footer 頁尾設計 */
.site-footer {
  padding: 28px 36px;
  position: relative;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}

.footer-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.footer-tagline {
  margin: 4px 0 0 0;
  font-size: 0.9rem;
  opacity: 0.8;
}

.footer-navigation ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 16px;
}

.copyright {
  font-size: 0.875rem;
  opacity: 0.8;
  margin-top: 8px;
}

/* 回頁頂按鈕 */
.back-to-top {
  position: absolute;
  right: 28px;
  bottom: 24px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--primary-bg);
  border: 2px solid var(--secondary);
  color: var(--secondary);
  font-size: 1.2rem;
  font-weight: bold;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s ease;
}

.back-to-top:hover {
  background-color: var(--secondary);
  color: var(--primary-bg);
}

/* 手機版與響應式螢幕優化 */
@media screen and (max-width: 768px) {
  .box-view {
    margin: 12px;
    border-radius: 18px;
    padding: 20px 16px;
  }
  
  .site-header {
    padding: 16px 20px;
  }

  .menu-toggle {
    display: flex;
  }

  .main-navigation {
    display: none;
    width: 100%;
    margin-top: 16px;
  }

  .main-navigation.is-active {
    display: block;
  }

  .main-navigation ul {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .main-navigation li a {
    text-align: center;
    width: 100%;
  }

  .posts-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .single-post-container {
    padding: 20px 16px;
  }

  .entry-title {
    font-size: 1.6rem;
  }

  .nav-links {
    flex-direction: column;
    gap: 12px;
  }

  .back-to-top {
    position: static;
    margin-top: 12px;
  }
}