/* =============================================
   設計語言：溫暖人文
   全白底 + 暖棕文字 + 赭紅點綴 + 21:9 海景大圖
   ============================================= */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@400;500;700&family=Noto+Serif+TC:wght@400;600;700&display=swap');

:root {
  --color-bg:           #ffffff;
  --color-bg-card:      #f3f3f3;   /* 卡片灰色底 */
  --color-bg-warm:      #eeeeee;
  --color-border:       #dedede;
  --color-border-light: #ebebeb;
  --color-text:         #2c2420;
  --color-text-muted:   #7a6f65;
  --color-text-light:   #a89d94;
  --color-accent:       #b85b35;
  --color-accent-dark:  #9a4828;
  --color-accent-bg:    #fbf0eb;
  --color-tag-bg:       #e2e2e2;
  --color-tag-text:     #555555;
  --font-sans:   'Noto Sans TC', -apple-system, sans-serif;
  --font-serif:  'Noto Serif TC', Georgia, serif;
  --font-mono:   'JetBrains Mono', 'Fira Code', monospace;
  --max-width:   700px;
  --radius:      6px;
  --radius-lg:   12px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 17px; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

/* =============================================
   容器
   ============================================= */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* =============================================
   導覽列
   ============================================= */
.site-header {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--color-border);
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-title {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}
.site-title:hover { color: var(--color-accent); }
.site-logo {
  width: 34px;
  height: 34px;
  object-fit: contain;
  border-radius: 6px;
  flex: 0 0 auto;
}

.site-nav { display: flex; gap: 1.75rem; }
.site-nav a {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  letter-spacing: 0.02em;
  position: relative;
  transition: color 0.15s;
}
.site-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 1.5px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform 0.2s ease;
}
.site-nav a:hover { color: var(--color-accent); }
.site-nav a:hover::after,
.site-nav a.active::after { transform: scaleX(1); }
.site-nav a.active { color: var(--color-accent); }

/* =============================================
   主要內容
   ============================================= */
.main-content {
  min-height: calc(100vh - 130px);
  padding: 0 0 4rem;
}

/* =============================================
   Hero 大圖（21:9）
   ============================================= */
.hero-image-wrap {
  padding: 1.5rem 1.5rem 0;
  max-width: calc(var(--max-width) + 3rem);
  margin: 0 auto;
}
.hero-image {
  display: block;
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  object-position: center;
  border-radius: 20px;
  box-shadow: 0 4px 28px rgba(0,0,0,0.11);
}
.posts-section { margin-top: 2.75rem; }

/* =============================================
   研究資料庫首頁
   ============================================= */
.research-home {
  --research-width: 1120px;
  max-width: var(--research-width);
  margin: 0 auto;
  padding: 1.5rem 1.5rem 4rem;
}
.research-home .posts-section { margin-top: 2.25rem; }
.research-hero {
  display: grid;
  gap: 1.2rem;
  align-items: stretch;
  padding: 1.4rem;
  border: 1px solid var(--color-border);
  border-radius: 18px;
  background:
    linear-gradient(90deg, rgba(5,20,36,0.88) 0%, rgba(7,34,54,0.74) 48%, rgba(5,20,36,0.4) 100%),
    url('../images/research-database-ocean-hero.jpg') center / cover no-repeat;
  box-shadow: 0 12px 38px rgba(44,36,32,0.08);
}
.research-kicker,
.section-heading span {
  display: inline-flex;
  color: var(--color-accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.research-hero .research-kicker {
  color: #dff7ff;
  text-shadow: 0 2px 8px rgba(0,0,0,0.35);
}
.research-hero h1 {
  margin: 0.4rem 0 0.65rem;
  max-width: 820px;
  font-family: var(--font-serif);
  font-size: clamp(1.55rem, 3.35vw, 2.55rem);
  line-height: 1.28;
  letter-spacing: 0;
  color: #ffffff;
  text-shadow: 0 3px 18px rgba(0,0,0,0.36);
}
.research-hero__statement span {
  display: block;
  white-space: nowrap;
}
.research-hero p {
  max-width: 720px;
  color: rgba(255,255,255,0.86);
  font-size: 1rem;
  line-height: 1.8;
  text-shadow: 0 2px 10px rgba(0,0,0,0.32);
}
.research-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1.25rem;
}
.research-stats div {
  padding: 0.85rem;
  border: 1px solid rgba(255,255,255,0.36);
  border-radius: 10px;
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.12);
}
.research-stats b {
  display: block;
  color: #1f2b34;
  font-family: var(--font-serif);
  font-size: 1.6rem;
  line-height: 1;
}
.research-stats span {
  display: block;
  margin-top: 0.35rem;
  color: rgba(31,43,52,0.72);
  font-size: 0.78rem;
}
.research-hero__panel {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  background: #ffffff;
}
.research-hero__panel > span {
  margin-bottom: 0.55rem;
  color: var(--color-text-light);
  font-size: 0.78rem;
  font-weight: 700;
}
.research-hero__panel a {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  color: var(--color-text);
  text-decoration: none;
}
.research-hero__panel img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 10px;
}
.research-hero__panel strong {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.45;
}
.research-hero__panel small { color: var(--color-text-muted); }
.topic-lab,
.research-shelf {
  margin-top: 2.2rem;
}
.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.7rem;
}
.section-heading h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.45rem;
  line-height: 1.25;
}
.topic-grid {
  display: grid;
  gap: 0.8rem;
}
.topic-card {
  min-height: 126px;
  padding: 1rem;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  background: #f7f7f7;
  color: var(--color-text);
  text-decoration: none;
  transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
}
.topic-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
  box-shadow: 0 10px 26px rgba(44,36,32,0.08);
  text-decoration: none;
}
.topic-card b {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.08rem;
  margin-bottom: 0.55rem;
}
.topic-card span {
  display: block;
  color: var(--color-text-muted);
  font-size: 0.86rem;
  line-height: 1.65;
}
.feature-grid {
  display: grid;
  gap: 1rem;
}
.feature-card {
  display: grid;
  grid-template-columns: 132px 1fr;
  min-height: 168px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  background: var(--color-bg-card);
}
.feature-card[hidden] {
  display: none;
}
.feature-card__image {
  display: block;
  min-height: 100%;
}
.feature-card__image img,
.feature-card__image span {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: linear-gradient(145deg, #d9d9d9, #a8a8a8);
}
.feature-card__body {
  padding: 1rem;
}
.feature-card__title {
  display: block;
  margin: 0.45rem 0 0.35rem;
  color: var(--color-text);
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.42;
  text-decoration: none;
}
.feature-card__title:hover { color: var(--color-accent); }
.feature-card__body p {
  color: var(--color-text-muted);
  font-size: 0.86rem;
  line-height: 1.65;
}
.latest-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}
.latest-pagination__btn,
.latest-pagination__page {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.15rem;
  min-height: 2.15rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: #ffffff;
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.latest-pagination__btn:hover,
.latest-pagination__page:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  text-decoration: none;
}
.latest-pagination__page--current {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: #ffffff;
}
.latest-pagination__page--current:hover {
  color: #ffffff;
}
.latest-pagination__btn--disabled {
  opacity: 0.45;
  pointer-events: none;
}
.latest-pagination__btn:disabled,
.latest-pagination__page:disabled {
  opacity: 0.45;
  cursor: default;
}
.latest-pagination__dots {
  display: inline-flex;
  align-items: center;
  min-height: 2.15rem;
  color: var(--color-text-light);
  font-weight: 700;
}
.compact-list {
  display: grid;
  gap: 0.65rem;
}
.compact-item {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 0.8rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--color-border-light);
}
.compact-item time {
  color: var(--color-text-light);
  font-size: 0.78rem;
  padding-top: 0.1rem;
}
.compact-item a {
  color: var(--color-text);
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.45;
  text-decoration: none;
}
.compact-item a:hover { color: var(--color-accent); }
.compact-item p {
  grid-column: 2;
  margin-top: -0.25rem;
  color: var(--color-text-muted);
  font-size: 0.84rem;
  line-height: 1.6;
}
.database-list {
  display: grid;
  gap: 0.9rem;
}

/* =============================================
   文章列表 header
   ============================================= */
.posts-header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
.posts-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-light);
}
.posts-count { font-size: 0.8rem; color: var(--color-text-light); }

/* =============================================
   文章卡片（帶縮圖 + 暖色底）
   ============================================= */
.post-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.post-card {
  display: flex;
  align-items: stretch;
  gap: 0;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s;
}
.post-card:hover {
  box-shadow: 0 4px 20px rgba(44,36,32,0.08);
  transform: translateY(-2px);
}

/* 縮圖區 */
.post-thumb-link {
  display: block;
  flex-shrink: 0;
  width: 140px;
}
.post-thumbnail {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
/* 無圖片時的漸層佔位 */
.post-thumb-placeholder {
  width: 100%;
  height: 100%;
  min-height: 120px;
  background: linear-gradient(145deg, #cecece 0%, #b8b8b8 50%, #a2a2a2 100%);
}

/* 內容區 */
.post-body {
  flex: 1;
  padding: 1.1rem 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.3rem;
}

.post-card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.post-card-meta time {
  font-size: 0.78rem;
  color: var(--color-text-light);
}
.reading-time {
  font-size: 0.78rem;
  color: var(--color-text-light);
}
.reading-time::before {
  content: "·";
  margin-right: 0.5rem;
  opacity: 0.4;
}
.view-count {
  font-size: 0.78rem;
  color: var(--color-text-light);
}
.view-count:not(:empty)::before {
  content: "·";
  margin-right: 0.5rem;
  opacity: 0.4;
}

.tag {
  display: inline-block;
  padding: 0.1rem 0.55rem;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  border-radius: 99px;
  font-size: 0.73rem;
  font-weight: 500;
}

.post-title-link {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  line-height: 1.45;
  transition: color 0.15s;
}
.post-title-link:hover { color: var(--color-accent); }

.post-excerpt {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2; /* 加這行 */
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-more {
  font-size: 0.8rem;
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  margin-top: 0.2rem;
  transition: gap 0.15s;
}
.read-more:hover { gap: 0.4rem; }

.empty-state {
  padding: 3rem;
  text-align: center;
  background: var(--color-bg-warm);
  border-radius: var(--radius-lg);
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* =============================================
   文章內頁
   ============================================= */
.post-header {
  padding: 2.5rem 0 2rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--color-border);
}
.post-header .post-card-meta { margin-bottom: 0.85rem; }
.post-header .post-card-meta time {
  font-size: 0.85rem;
  color: var(--color-text-light);
}
.post-header .post-title {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 0.75rem;
}
.post-header .post-description {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  border-left: 3px solid var(--color-accent);
  padding-left: 1rem;
  margin-top: 1rem;
}

.post-content h2 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 700;
  margin: 2.5rem 0 0.9rem;
}
.post-content h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
}
.post-content p { margin-bottom: 1.5rem; line-height: 1.85; }
.post-content a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
  transition: border-color 0.15s;
}
.post-content a:hover { border-bottom-color: var(--color-accent); }
.post-content ul,
.post-content ol { margin: 0.75rem 0 1.5rem 1.5rem; }
.post-content li { margin-bottom: 0.45rem; line-height: 1.75; }
.post-content blockquote {
  margin: 1.75rem 0;
  padding: 1rem 1.25rem 1rem 1.5rem;
  border-left: 3px solid var(--color-accent);
  background: var(--color-accent-bg);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--color-text-muted);
}
.post-content code {
  font-family: var(--font-mono);
  font-size: 0.83em;
  background: var(--color-bg-warm);
  border: 1px solid var(--color-border);
  padding: 0.12em 0.4em;
  border-radius: 4px;
  color: var(--color-accent-dark);
}
.post-content pre {
  background: #1e1a18;
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}
.post-content pre code {
  background: none; border: none;
  color: #e8ddd5; font-size: 0.87rem; padding: 0;
}
.post-content img {
  max-width: 100%; height: auto;
  border-radius: var(--radius-lg);
  margin: 1.5rem 0;
  border: 1px solid var(--color-border);
}
.post-content hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2.5rem 0;
}
.post-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}
.post-content th, .post-content td {
  padding: 0.6rem 1rem;
  border: 1px solid var(--color-border);
  text-align: left;
}
.post-content th { background: var(--color-bg-warm); font-weight: 600; }

.post-tags {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex; align-items: center;
  gap: 0.5rem; flex-wrap: wrap;
  font-size: 0.88rem; color: var(--color-text-muted);
}

/* =============================================
   分享 icon（正方形，出現在 meta 旁與文章底部）
   ============================================= */
.share-icons {
  display: inline-flex;
  gap: 0.35rem;
  align-items: center;
}
.share-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  text-decoration: none;
  color: #fff;
  transition: opacity 0.15s, transform 0.15s;
  flex-shrink: 0;
}
.share-icon:hover {
  opacity: 0.82;
  transform: translateY(-1px);
}
.share-icon--fb   { background: #1877F2; }
.share-icon--line { background: #06C755; }
.share-icon--wa   { background: #25D366; }

/* 底部分享區塊 */
.share-section {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.share-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-muted);
  white-space: nowrap;
}
.share-section .share-icons .share-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}
.share-section .share-icons .share-icon svg {
  width: 18px;
  height: 18px;
}

.related-posts {
  margin-top: 2.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}
.related-posts__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.related-posts__header span {
  color: var(--color-text-light);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.related-posts__header h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  line-height: 1.3;
}
.related-posts__grid {
  display: grid;
  gap: 0.85rem;
}
.related-post-card {
  display: grid;
  grid-template-columns: 96px 1fr;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-bg-card);
}
.related-post-card__image {
  display: block;
  min-height: 104px;
}
.related-post-card__image img,
.related-post-card__image span {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: linear-gradient(145deg, #d9d9d9, #a8a8a8);
}
.related-post-card__body {
  padding: 0.8rem 0.9rem;
}
.related-post-card__body time {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--color-text-light);
  font-size: 0.76rem;
}
.related-post-card__body a {
  color: var(--color-text);
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.45;
  text-decoration: none;
}
.related-post-card__body a:hover {
  color: var(--color-accent);
}

.post-navigation {
  display: flex;
  justify-content: space-between;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  gap: 1rem;
}
.post-navigation a {
  color: var(--color-accent);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  max-width: 45%;
  line-height: 1.5;
}
.post-navigation a:hover { color: var(--color-accent-dark); }
.next-post { margin-left: auto; text-align: right; }
.back-to-home { margin-top: 1.5rem; text-align: center; }
.back-to-home a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.88rem;
}
.back-to-home a:hover { color: var(--color-accent); }

/* =============================================
   獨立頁面
   ============================================= */
.page-header {
  padding-top: 2.5rem;
  padding-bottom: 1.75rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--color-border);
}
.page-header h1 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.page-content h2 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 2rem 0 0.75rem;
}
.page-content p { margin-bottom: 1.2rem; line-height: 1.8; }
.page-content ul { margin: 0.5rem 0 1.2rem 1.5rem; }
.page-content li { margin-bottom: 0.3rem; }
.page-content a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border);
}
.page-content a:hover { border-bottom-color: var(--color-accent); }
.page-content hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2rem 0;
}

/* =============================================
   頁尾
   ============================================= */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
  background: var(--color-bg-warm);
}
.site-footer .container {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1.25rem;
}
.footer-banner {
  display: block;
  width: 100%;
  max-height: 360px;
  object-fit: cover;
  border-radius: 18px;
}
.footer-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.site-footer p { font-size: 0.82rem; color: var(--color-text-light); }
.site-footer a { color: var(--color-text-light); text-decoration: none; }
.site-footer a:hover { color: var(--color-accent); }
.footer-links { display: flex; gap: 1.25rem; font-size: 0.82rem; }

/* =============================================
   分頁導覽 Pagination
   ============================================= */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin: 3rem 0 1rem;
  flex-wrap: wrap;
}

.pagination-pages {
  display: flex;
  gap: 0.35rem;
}

.pagination-page {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-text);
  border: 1px solid var(--color-border, #e5e5e5);
  transition: background 0.15s, color 0.15s;
}
.pagination-page:hover {
  background: var(--color-bg-warm);
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.pagination-page.current {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  transition: background 0.15s, color 0.15s;
}
.pagination-btn:hover {
  background: var(--color-accent);
  color: #fff;
}
.pagination-btn.disabled {
  color: #ccc;
  border-color: #e5e5e5;
  cursor: default;
  pointer-events: none;
}

/* =============================================
   RWD 手機版
   ============================================= */
@media (max-width: 600px) {
  html { font-size: 16px; }

  .site-header .container {
    gap: 0.45rem;
    padding: 0 0.9rem;
  }
  .site-title {
    flex: 0 1 auto;
    white-space: nowrap;
    font-size: clamp(0.78rem, 3.25vw, 0.98rem);
  }
  .site-nav {
    flex: 0 0 auto;
    gap: clamp(0.42rem, 2.2vw, 0.85rem);
    white-space: nowrap;
  }
  .site-nav a {
    white-space: nowrap;
    font-size: clamp(0.68rem, 2.85vw, 0.82rem);
  }

  .research-home { padding: 1rem 1rem 3rem; }
  .research-hero h1 { font-size: clamp(1.16rem, 6.3vw, 1.85rem); }
  .research-stats { grid-template-columns: 1fr; }
  .feature-card { grid-template-columns: 104px 1fr; min-height: 142px; }
  .section-heading { align-items: start; flex-direction: column; }

  .hero-image-wrap { padding: 1rem 1rem 0; }
  .hero-image { aspect-ratio: 16 / 9; border-radius: 14px; }

  .post-thumb-link { width: 100px; }
  .post-thumb-placeholder { min-height: 90px; }

  .post-header .post-title { font-size: 1.5rem; }
  .footer-meta { flex-direction: column; text-align: center; }
  .post-navigation { flex-direction: column; }
  .post-navigation a { max-width: 100%; }
}

@media (min-width: 760px) {
  .research-hero { grid-template-columns: minmax(0, 1fr) 300px; padding: 2rem; }
  .topic-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .database-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}