/* ================================================
   ChongwuPet layout.css
   ============================================== */
.site-header,
.site-main {
  width: 100%;
  background: #fff;
}

.site-header {
  margin: 0;
  background: #fff;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

html,
body {
  width: 100%;
  overflow-x: hidden;
}

@media (min-width:1024px) {

  html,
  body {
    width: auto;
    overflow-x: visible;
  }
}

@supports (overscroll-behavior-y: contain) {

  html,
  body {
    overscroll-behavior-y: contain;
  }
}

/* ===== 模块头 ===== */
.module-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 15px;
  align-items: center;
  gap: 8px;
}

.module-title {
  font-size: clamp(26px, 1.6vw, 30px);
  font-weight: 500;
  margin: 0;
  color: var(--primary-color);
}

/* ===== 卡片通用样式 ===== */
.cards {
  display: grid;
  gap: clamp(20px, 1.5vw, 28px);
  margin-bottom: 30px;
}

@media (min-width:1024px) {
  .cards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.card {
  border-radius: var(--radius);
}

.card .card-link {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr;
  height: 100%;
  text-decoration: none;
  color: inherit;
  background: #fff;
  border-radius: var(--radius);
  border: var(--border-color) 1px solid;
  overflow: hidden;
}

.card .card-link:hover .card-title {
  text-decoration: none;
}

.card .card-link:focus-visible {
  outline-offset: -2px;
}

/* 图片区 */
.card .card-media {
  width: 100%;
  aspect-ratio: 3/2;
  background:
    linear-gradient(rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.5)),
    url('/assets/images/default-600x400.webp') no-repeat center center;
  background-size: cover;
  overflow: hidden;
  position: relative;
}

.card .card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
    transform: scale(1);
    transition: transform .36s var(--ease-smooth);
    will-change: transform;
}

.card .card-link:hover .card-media img,
.card .card-link:focus-visible .card-media img {
  transform: scale(1.1);
}

@media (prefers-reduced-motion:reduce) {
  .card .card-media img {
    transition: none;
  }
}

/* 文本区 */
.card .card-body {
  padding: 20px;
}

.card .card-title {
  font-size: clamp(22px, 1.6vw, 22px);
  font-weight: 500;
  line-height: 1.35;
  color: var(--text-color-primary);
  margin: 0 0 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card .card-link:hover .card-title {
  color: var(--primary-color);
  text-decoration: underline;
}

.card .card-text {
  font-size: 14px;
  color: var(--text-color-secondary);
  line-height: 1.7;
  margin: 0;
  flex: 1 1 auto;
}

.card .update-time {
  display: flex;
  margin-top: 10px;
  font-size: 12px;
  color: var(--text-color-secondary);
  white-space: nowrap;
  align-self: flex-start;
}

/* 信息型简卡：芯片区 */
.cards .card .card-body .card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 15px;
  padding: 0;
  list-style: none;
}

.cards .card .card-body .card-meta .meta-chip {
  font-size: 12px;
  line-height: 1;
  padding: 5px 8px;
  border-radius: 999px;
  background: #f3f5f7;
  border: 1px solid var(--border-color);
}

/* 让卡片在列表里等高 */
.cards,
.cards.scroller,
.cards.featured-cards,
.updates-cards {
  align-items: stretch;
  grid-auto-rows: auto;
}

@media (min-width:1024px) {

  .cards,
  .cards.scroller,
  .cards.featured-cards,
  .updates-cards {
    grid-auto-rows: 1fr;
  }
}

.cards>.card {
  display: flex;
}

.cards>.card>.card-link,
.card .card-body {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
}

@media (min-width:1024px) {
  /* hover：排除 .featured-cards 与 .image-cards */
  .cards:not(.featured-cards):not(.image-cards) > .card > .card-link:hover {
    box-shadow:
      0 1px 2px rgba(0, 0, 0, .08),
      0 2px 6px rgba(0, 0, 0, .06);
    border-color: color-mix(in srgb, var(--primary-color) 10%, var(--border-color));
  }

  /* focus/active 同样排除 */
  .cards:not(.featured-cards):not(.image-cards) > .card > .card-link:focus,
  .cards:not(.featured-cards):not(.image-cards) > .card > .card-link:active {
    outline: none;
    border-color: var(--primary-color);
    box-shadow:
      0 0 0 3px color-mix(in srgb, var(--primary-color) 28%, transparent),
      0 4px 12px rgba(0, 0, 0, .08);
  }
}


/* 急症 */
.cards .card .card-body .card-meta .meta-chip.is-emergency {
  --chip-bg: #ffe4e6;
  --chip-fg: #be123c;
  --chip-bd: #fda4af;
}

/* 严重/风险分级 (Lv1→Lv5) */
.cards .card .card-body .card-meta .meta-chip.is-severity.is-sev-1 {
  --chip-bg: #f6fff8;
  --chip-fg: #137333;
  --chip-bd: #cdebd6;
}

.cards .card .card-body .card-meta .meta-chip.is-severity.is-sev-2 {
  --chip-bg: #fffae3;
  --chip-fg: #92400e;
  --chip-bd: #fde68a;
}

.cards .card .card-body .card-meta .meta-chip.is-severity.is-sev-3 {
  --chip-bg: #fdf1e5;
  --chip-fg: #b45309;
  --chip-bd: #fed7aa;
}

.cards .card .card-body .card-meta .meta-chip.is-severity.is-sev-4 {
  --chip-bg: #fef2f2;
  --chip-fg: #f53e3e;
  --chip-bd: #ffc8c8;
}

.cards .card .card-body .card-meta .meta-chip.is-severity.is-sev-5 {
  --chip-bg: #ffe1e1;
  --chip-fg: #be1717;
  --chip-bd: #ff9999;
}

/* 统一应用：背景/文字/边框 */
.cards .card .card-body .card-meta .meta-chip.is-emergency,
.cards .card .card-body .card-meta .meta-chip.is-severity {
  background: var(--chip-bg);
  /* color: var(--chip-fg); */
  border: 1px solid var(--chip-bd);
}

.cards.scroller {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 85%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scroll-snap-stop: always;
  margin-inline-start: calc(var(--gutter-safe-left) * -1);
  margin-inline-end: calc(var(--gutter-safe-right) * -1);
  padding-inline: var(--gutter-safe-left) var(--gutter-safe-right);
  scroll-padding-inline: var(--gutter-safe-left) var(--gutter-safe-right);
  -ms-overflow-style: none;
  scrollbar-width: none;
}

@media (min-width:1024px) {
  .cards.scroller {
    overflow-x: visible;
  }
}

.cards.scroller::-webkit-scrollbar {
  display: none;
}

.cards.scroller>* {
  scroll-snap-align: start;
  min-width: 0;
}

.module:has(.cards.scroller),
.container:has(.cards.scroller) {
  overflow-x: visible;
}

@media (min-width:1024px) {
  .cards.scroller {
    margin-inline-start: 0;
    margin-inline-end: 0;
    padding-inline: 0;
  }

  .cards.scroller::-webkit-scrollbar {
    display: initial;
  }

  .cards.scroller>* {
    scroll-snap-align: none;
  }
}

.cards.scroller.is-dragging a {
  pointer-events: none;
}

.cards.scroller.is-dragging {
  cursor: grabbing;
}

/* 卡片小箭头 */
.cards .card .card-link::after {
  content: "";
  position: absolute;
  right: 10px;
  bottom: 10px;
  width: 20px;
  height: 20px;
  font-size: 20px;
  background-color: var(--primary-color);
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 12h12m0 0-5-5m5 5-5 5' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  mask-repeat: no-repeat;
  mask-position: center;
  mask-size: 100% 100%;
  opacity: .9;
  pointer-events: none;
  transition: transform .18s ease, opacity .18s ease;
}

@media (min-width:1024px) {
  .cards .card .card-link::after {
    right: 15px;
    transform: translateX(0);
    opacity: 0;
    transition: transform .5s var(--ease-smooth);
    will-change: transform;
  }

  .cards .card .card-link:hover::after,
  .cards .card .card-link:focus-visible::after {
    transform: translateX(5px);
    opacity: 1;
  }
}

/* 最近更新 ========== */
.module-updates {
  padding-bottom: 50px;
}

@media (min-width:1024px) {
  .updates-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
  }
}

.updates-cards .card .card-body {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  padding: 14px 16px;
}

@media (min-width:1024px) {
  .updates-cards .card .card-body {
    padding: 0;
  }
}

.updates-cards .card .card-link::after {
  background: none;
}

.updates-cards .card .card-link {
  align-items: stretch;
  gap: 0;
  padding: 0;
}

@media (min-width:1024px) {
  .updates-cards .card .card-link {
    flex-direction: revert;
    align-items: center;
    padding: 20px;
  }

  .cards.updates-cards .card .card-link {
    /* flex-direction: column; */
    flex: 1 1 auto;
    min-height: 100%;
  }
}

.updates-cards .card.card--with-thumb .card-media {
  width: 100%;
  flex: 0 0 auto;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-radius: var(--radius) var(--radius) 0 0;
}

.updates-cards .card .card-media .card-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.updates-cards .card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

@media (min-width:1024px) {
  .updates-cards .card .card-link::after {
    background-color: var(--primary-color);
    -webkit-mask-size: 100% 100%;
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 12h12m0 0-5-5m5 5-5 5' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    mask-repeat: no-repeat;
    mask-position: center;
  }

  .updates-cards .card.card--with-thumb .card-media {
    width: revert;
    flex: revert;
    aspect-ratio: revert;
    overflow: revert;
    border-radius: revert;
  }

  .updates-cards .card .card-media .card-thumb-img {
    width: revert;
    height: revert;
    object-fit: revert;
    display: revert;
  }

  .updates-cards .card {
    overflow: revert;
  }
}

@media (min-width:1024px) {
  .updates-cards .card.card--with-thumb .card-media {
    flex: 0 0 160px;
    width: 160px;
    aspect-ratio: 3 / 2;
    border-radius: var(--radius);
    overflow: hidden;
  }

  .updates-cards .card .card-media .card-thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }
}


@media (min-width:1024px) {
  .updates-cards .card>.card-link {
    display: flex;
    flex-direction: column;
    height: 100%;
  }

  .updates-cards .card .card-body {
    flex: 1 1 auto;
  }


  .updates-cards .card:has(.card-media) .card-media {
    grid-column: 1;
    grid-row: 1 / span 2;
  }

  .updates-cards .card:has(.card-media)>.card-link {
    display: grid;
    grid-template-columns: 160px 1fr;
    column-gap: 20px;
    align-items: stretch;
    --media-w: 160px;
    --media-h: calc(var(--media-w) * 2 / 3);
  }

  .updates-cards .card:has(.card-media) .card-body {
    grid-column: 2;
    grid-row: 1;
  }
}

/* === Fix: 有图时更新时间贴底 === */
@media (min-width:1024px) {

  /* 左图固定尺寸（grid 项不吃 flex，显式给高宽） */
  .updates-cards .card.card--with-thumb .card-media {
    width: var(--media-w);
    height: var(--media-h);
    overflow: hidden;
    border-radius: var(--radius);
  }

  .updates-cards .card.card--with-thumb .card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }

  /* 右列变纵向 flex，并至少与左图同高 */
  .updates-cards .card.card--with-thumb .card-body {
    display: flex;
    flex-direction: column;
    min-height: var(--media-h);
  }

  /* 时间元素用 auto 顶边距压到右列底部（有图/无图通用） */
  .updates-cards .card .update-time {
    margin-top: auto;
    border-top: 0;
    padding-top: 6px;
  }
}


.cat-hero {
  padding: 20px 0;
}

@media (min-width:1024px) {
  .cat-hero {
    display: flex;
    align-items: center;
    gap: 20px;
  }
}

.cat-hero h1 {
  font-size: clamp(36px, 6vw, 50px);
  margin-bottom: 10px;
  color: var(--primary-color);
}

.cat-hero p {
  font-size: clamp(14px, 4vw, 16px);
  color: var(--text-color-secondary);
}

/* 页码 */
.pagination {
  position: relative;
  z-index: 3;
  margin: 0 0 30px;
  text-align: center;
}

.pagination a,
.page-numbers {
  margin: 0 5px;
  padding: 8px 12px;
  background: var(--background-alt-color);
  color: var(--text-color-primary);
  border-radius: 4px;
  text-decoration: none;
  border: 1px solid var(--border-color);
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.pagination a:hover,
.page-numbers.current {
  color: var(--background-color);
  background: var(--primary-color-800);
  border: 1px solid var(--primary-color-800);
}

/* ===== 404 页面：整屏居中 ===== */
.error-page {
  min-height: auto;
  display: flex;
  align-items: center;
}

@media (min-width:1024px) {
  .error-page {
    min-height: calc(100vh - var(--nav-h, 80px) - var(--footer-h, 106px));
  }
}

.error-page .container {
  width: 100%;
}

.error-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 14px;
  padding: 24px 0;
}

@media (min-width:1024px) {
  .error-content {
    margin-bottom: 50px;
  }
}

/* 404页面 ========== */
.error-code img {
  width: clamp(200px, 30vw, 350px);
}

.error-title {
  font-size: clamp(22px, 3.4vw, 28px);
  margin: 0;
  color: var(--text-color-primary);
  font-weight: 700;
}

.error-desc {
  color: var(--text-color-secondary);
  font-size: 14px;
}

.error-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 8px;
}

.error-actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--background-color, #fff);
  color: var(--text-color-primary, #222);
  text-decoration: none;
}

.error-actions .btn:hover {
  background: var(--primary-color);
  border-color: var(--primary-color);
  color: #fff;
  font-weight: 500;
}

.error-search {
  display: flex;
  align-items: stretch;
  gap: 8px;
  width: min(520px, 100%);
  margin-top: 6px;
}

.error-search input[type="search"] {
  flex: 1 1 auto;
  min-width: 0;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: #fff;
  transition: border-color .15s ease, box-shadow .15s ease;
}

.error-search input[type="search"]::placeholder {
  color: var(--text-color-secondary);
  opacity: 1;
}

.error-search input[type="search"]:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.0);
  box-shadow: 0 0 0 3px rgba(98, 0, 238, .2);
}

@supports (color: color-mix(in srgb, #000 0%, #fff 0%)) {
  .error-search input[type="search"]:focus {
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary-color) 20%, transparent);
  }
}

.error-search button[type="submit"] {
  flex: 0 0 auto;
  height: 40px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid var(--primary-color);
  background: var(--primary-color);
  color: #fff;
  white-space: nowrap;
  cursor: pointer;
  font-weight: 500;
}


.ams-ads {
  position: relative;
  display: flex;
  width: 100%;
  max-height: 120px;
  margin-bottom: 30px;
  background: #f5f5f5;
  overflow: hidden;
  justify-content: center;
  align-items: center;
  text-align: center;
  line-height: 0;
}

.ams-ads>a,
.ams-ads>div,
.ams-ads>ins,
.ams-ads>iframe {
  display: block;
  margin: 0 auto;
}

.ams-ads img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}

.ams-ads ins.adsbygoogle {
  display: block !important;
  margin: 0 auto !important;
}

@media print {
  .ams-ads {
    display: none !important;
  }
}

/* 移动端：彻底隐藏 */
@media (max-width:1023px){
  #back-to-top { display: none !important; }
}

/* 桌面端：显示，默认透明，滚动后加 .is-visible 才可点 */
@media (min-width:1024px){
  #back-to-top{
    display: flex;                 /* 关键：不要再有全局 display:none 覆盖 */
    position: fixed;
    left: 50%;
    bottom: 85px;
    transform: translateX(-50%) translateY(8px);
    z-index: 9999;                 /* 提高层级，防止被盖住 */
    width: 40px; height: 40px;
    border-radius: 999px;
    align-items: center; justify-content: center;
    background: #fff;
    border: 1px solid var(--border-color, #e5e7eb);
    color: var(--text-color-primary, #111);
    box-shadow: 0 6px 18px rgba(0,0,0,.08);
    opacity: 0; pointer-events: none;
    transition: opacity .18s, transform .18s, box-shadow .18s;
    cursor: pointer;
  }
  #back-to-top.is-visible{
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
  }
  #back-to-top:hover{ box-shadow: 0 10px 24px rgba(0,0,0,.12); }
  #back-to-top .btn-icon{ font-size:20px; transform: rotate(-90deg); }
}


.back-to-top .sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap; border: 0;
  clip-path: inset(50%);
}