/**
 * 分類／標籤頁：主視覺、分類切換膠囊、分類與標籤的視覺區隔
 *
 * @package Yafun2027
 */

/* 文末標籤的基礎樣式（源自 Dyad；需在下方「分類 vs 標籤」之前） */

.tags-links a:hover,
.tags-links a:focus {
  background-color: #e0e0e0;
  color: #777;
  text-decoration: none;
}

.tags-links a:last-of-type {
  margin-right: 0;
}

/* ==========================================================================
   分類／標籤頁：主視覺
   ========================================================================== */

.yf-archive-hero {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 42vh;
  padding: calc(var(--yf-header-h, 90px) + 6rem) 8% 6rem;
  overflow: hidden;
  background: var(--color-ink);
  color: #fff;
}

.yf-archive-hero-media {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  transform-origin: 60% 50%;
  animation: yf-banner-kenburns 24s ease-in-out infinite alternate;
}

.yf-archive-hero.has-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(15, 22, 18, 0.85) 0%, rgba(15, 22, 18, 0.45) 50%, rgba(15, 22, 18, 0.3) 100%);
}

.yf-archive-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 72rem;
}

.yf-archive-hero-label {
  display: block;
  margin-bottom: 0.2em;
  font-family: var(--font-pen);
  font-size: 2.6rem;
  font-weight: 500;
  color: #f1e3c4;
  transform: rotate(-1.5deg);
  transform-origin: left;
}

.yf-archive-hero .page-title {
  margin: 0;
  padding: 0;
  font-size: clamp(3.4rem, 5vw, 6rem);
  line-height: 1.25;
  letter-spacing: 0.08em;
  text-align: left;
  color: #fff;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.35);
}

.yf-archive-hero-desc {
  margin-top: 1.4rem;
  font-family: var(--font-kai);
  font-size: 1.8rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
}

.yf-archive-hero-desc p {
  margin: 0;
}

.yf-archive-hero-stats {
  margin: 2rem 0 0;
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.75);
}

.yf-archive-hero-stats strong {
  font-size: 2rem;
  color: #fff;
}

.yf-archive-hero-stats time {
  font-family: var(--font-pen);
  font-size: 2rem;
  font-weight: 500;
  color: #f1e3c4;
}

@keyframes yf-hero-settle {
  to { transform: scale(1); }
}
/* ==========================================================================
   分類切換膠囊
   ========================================================================== */

.yf-term-nav {
  background: var(--color-paper);
  border-bottom: 1px solid #e4e0d4;
  padding: 1.6rem 8%;
}

.yf-term-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.yf-term-nav-children {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px dashed #dcd7c8;
}

.yf-term-nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.4em 1.1em;
  border: 1px solid #d6d1c2;
  border-radius: 999px;
  background: #fff;
  color: var(--color-ink);
  font-size: 1.5rem;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s, background-color 0.2s;
}

.yf-term-nav a span {
  font-size: 1.2rem;
  color: var(--color-muted);
}

.yf-term-nav a:hover,
.yf-term-nav a:focus-visible {
  border-color: var(--color-leaf);
  color: var(--color-leaf);
  text-decoration: none;
}

.yf-term-nav a.is-current {
  background: var(--color-leaf);
  border-color: var(--color-leaf);
  color: #fff;
}

.yf-term-nav a.is-current span {
  color: rgba(255, 255, 255, 0.8);
}

.yf-term-nav a.is-parent {
  border-style: dashed;
}

/* 手機：膠囊改為橫向滑動 */
@media (max-width: 767px) {
  .yf-archive-hero {
    min-height: 0;
    padding: 6rem 2rem 4rem;
  }

  .yf-term-nav {
    padding: 1.2rem 0;
  }

  .yf-term-nav ul {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding: 0 2rem;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .yf-term-nav ul::-webkit-scrollbar {
    display: none;
  }
}
/* ==========================================================================
   分類 vs 標籤：視覺區隔
   - 分類（文章屬於哪個欄目）：綠色外框圓角膠囊、霞鶩文楷
   - 標籤（文章提到的物種／主題）：「#」開頭、淺底方角小籤、較小字
   ========================================================================== */

.tags-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
  margin: 5rem 0 0;
  padding-top: 2.4rem;
  border-top: 1px solid #e9e5da;
  text-align: left;
  font-size: 1.4rem;
}

.tags-links::before {
  content: "標籤";
  margin-right: 0.4rem;
  font-size: 1.3rem;
  letter-spacing: 0.2em;
  color: var(--color-muted);
}

.tags-links a,
.site-footer .widget .tagcloud a,
.site-footer .widget.widget_tag_cloud a {
  border-radius: 4px;
}

.tags-links a {
  margin: 0;
  padding: 0.3em 0.8em;
  background-color: var(--color-paper);
  color: var(--color-text);
  font-size: 1.4rem;
  letter-spacing: 0.04em;
  transition: background-color 0.2s, color 0.2s;
}

.tags-links a::before,
.site-footer .widget .tagcloud a::before,
.site-footer .widget.widget_tag_cloud a::before {
  content: "#";
  margin-right: 0.2em;
  opacity: 0.55;
}

.tags-links a:hover,
.tags-links a:focus-visible {
  background-color: var(--color-ocean);
  color: #fff;
  text-decoration: none;
}

/* 搜尋浮層的熱門標籤也加上 # */
.yf-search-hot a::before {
  content: "#";
  margin-right: 0.15em;
  opacity: 0.6;
}

@media (prefers-reduced-motion: reduce) {
  .tags-links a {
    transition: none;
  }
}

/* body 已補位時，分類／標籤／搜尋主視覺不需再預留頁首高度 */
@media only screen and (max-width: 1200px) {
  .yf-archive-hero {
    padding-top: 6rem;
  }
}

@media (max-width: 767px) {
  .yf-archive-hero {
    padding-top: 4rem;
  }
}

/* 手機／平板：分類切換列捲動時吸附在頁首下方；頁首往下捲收起時跟著貼齊螢幕頂端 */
@media only screen and (max-width: 1200px) {
  /* 父主題 .site-content 為 overflow: hidden，會讓 sticky 失效；改用 clip 保留裁切但不建立捲動容器 */
  .archive .site-content {
    overflow: visible;
    overflow: clip;
  }

  .yf-term-nav {
    position: -webkit-sticky;
    position: sticky;
    top: var(--yf-header-h, 64px);
    z-index: 40;
    transition: top 0.6s cubic-bezier(0.33, 1, 0.68, 1);
    box-shadow: 0 6px 16px -10px rgba(31, 42, 36, 0.35);
  }

  html.yf-header-is-hidden .yf-term-nav {
    top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .yf-term-nav {
    transition: none;
  }
}