/* =====================================================================
   home.css  —  SEO 博客主题（对应原 www.yyjianglai.top 的首页 template_id=4）
   顶栏：logo + 4 菜单 + 微信扫码；主区：轮播 + 10 篇文章；侧栏：4 个 widget
   ===================================================================== */

:root {
  --c-primary:   #5b8def;   /* 主品牌色：柔和蓝紫（接近原模板色调） */
  --c-primary-2: #6e62d6;
  --c-text:      #222;
  --c-text-soft: #555;
  --c-muted:     #999;
  --c-line:      #e5e7eb;
  --c-line-2:    #f1f3f5;
  --c-bg:        #f4f6fa;
  --c-card:      #ffffff;
  --c-tag:       #4a91f3;
  --shadow-card: 0 2px 12px rgba(15, 23, 42, .06);
  --radius:      6px;
  --radius-lg:   10px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
               "Source Han Sans CN", sans-serif;
  font-size: 14px;
  line-height: 1.6;
}
a { color: var(--c-text); text-decoration: none; transition: color .2s; }
a:hover { color: var(--c-primary); }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }

/* === 1. 最外层 box-wrap：960 居中 === */
.box-wrap {
  width: 1100px;
  max-width: 100%;
  margin: 0 auto 30px;
  background: var(--c-card);
  box-shadow: var(--shadow-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 24px;
}

/* === 2. 顶栏 header（深色 logo 区 + 菜单 + 微信） === */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  background: var(--c-card);
  border-bottom: 1px solid var(--c-line-2);
  position: relative;
}
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo-wrap .logo {
  height: 44px;
  width: auto;
}
.logo-wrap h2 {
  margin: 0;
  font-size: 16px;
  color: var(--c-text);
  font-weight: 500;
}
.logo-wrap .sub-title {
  font-size: 12px;
  color: var(--c-muted);
  margin-top: 2px;
}

.menu-header-container { flex: 1; padding: 0 24px; }
.menu {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
}
.navbar-item { position: relative; }
.navbar-item > a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 16px;
  height: 44px;
  font-size: 14px;
  color: var(--c-text-soft);
  border-bottom: 2px solid transparent;
  transition: all .2s;
}
.navbar-item > a:hover,
.navbar-item.current-menu-item > a {
  color: var(--c-primary);
  border-bottom-color: var(--c-primary);
}
.navbar-item > a i {
  font-size: 14px;
  font-style: normal;
  color: inherit;
  opacity: .8;
}

.wx-code {
  display: flex;
  align-items: center;
  gap: 6px;
  position: relative;
  cursor: pointer;
  color: var(--c-text-soft);
  font-size: 13px;
}
.wx-code > i {
  font-style: normal;
  color: var(--c-primary);
  font-size: 16px;
}
.wx-code .wx-code-img {
  position: absolute;
  top: 100%;
  right: 0;
  width: 120px;
  height: 120px;
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 6px;
  margin-top: 8px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s;
  z-index: 5;
  box-shadow: var(--shadow-card);
}
.wx-code:hover .wx-code-img { opacity: 1; }

/* === 3. 主区 main + aside === */
.main {
  padding: 22px 22px 28px;
}

/* ---- 5 屏轮播 ---- */
.slider-container {
  position: relative;
  margin-bottom: 24px;
  border-radius: var(--radius);
  overflow: hidden;
}
.slider {
  display: flex;
  width: 100%;
  overflow: hidden;
  position: relative;
}
.slider__item {
  flex: 0 0 100%;
  display: block;
  position: relative;
  aspect-ratio: 16/5;
  overflow: hidden;
  color: #fff;
}
.slider__item .pic-cover-item-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.slider__caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 14px 22px;
  background: linear-gradient(transparent, rgba(0, 0, 0, .65));
  color: #fff;
}
.slider__caption h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 500;
}
.slider__switch {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 50px;
  background: rgba(0, 0, 0, .35);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background .2s;
  user-select: none;
  font-style: normal;
}
.slider__switch:hover { background: rgba(0, 0, 0, .55); }
.slider__switch--prev { left: 0; }
.slider__switch--next { right: 0; }

/* ---- 10 篇文章 post-list（2 列响应式） ---- */
.post-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.post-item {
  background: var(--c-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--c-line-2);
  transition: transform .25s, box-shadow .25s, border-color .25s;
  display: flex;
  flex-direction: column;
}
.post-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(15, 23, 42, .08);
  border-color: transparent;
}
.post-item-cover {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.post-item-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .5s;
}
.hover-scale:hover { transform: scale(1.05); }
.post-categories {
  position: absolute;
  bottom: 8px;
  left: 8px;
  display: flex;
  gap: 4px;
}
.post-categories li a {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 3px;
  background: rgba(91, 141, 239, .9);
  color: #fff;
  font-size: 12px;
}
.post-item-title {
  padding: 12px 14px 6px;
  display: block;
}
.post-item-title h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--c-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-item:hover .post-item-title h3 { color: var(--c-primary); }
.post-item-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 14px;
  margin-top: 4px;
}
.post-item-footer .tag-wrap { color: var(--c-muted); font-size: 12px; }
.post-item-meta {
  font-size: 12px;
  color: var(--c-muted);
}
.post-item-summary {
  padding: 8px 14px 14px;
  margin: 0;
  font-size: 13px;
  color: var(--c-text-soft);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* === 4. 侧栏 aside（与 main 同层，右列） === */
.aside {
  padding: 22px 22px 28px 0;
}
.block-wrap {
  background: var(--c-card);
  border-radius: var(--radius);
  border: 1px solid var(--c-line-2);
  margin-bottom: 20px;
  overflow: hidden;
}
.block-title {
  margin: 0;
  padding: 12px 16px;
  border-bottom: 1px solid var(--c-line-2);
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.block-title i {
  font-style: normal;
  font-size: 12px;
  color: var(--c-muted);
}

/* 大图推荐（5 张卡） */
.mcdas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 10px;
}
.photo-item {
  position: relative;
  display: block;
  aspect-ratio: 1/1;
  overflow: hidden;
  border-radius: 4px;
}
.photo-item-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.photo-item-inner {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 8px 10px;
  background: linear-gradient(transparent, rgba(0, 0, 0, .65));
  color: #fff;
}
.photo-item-title {
  margin: 0;
  font-size: 12px;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.photo-item.photo-ddt {
  grid-column: 1 / -1;
  aspect-ratio: 16/9;
}
.photo-item.photo-ddt .photo-item-title { font-size: 13px; }

/* 最新发布 / 热门文章（小型列表） */
#side-top-ll .mcdas,
#side-hot-cmt-item ul {
  display: flex;
  flex-direction: column;
}
.front-end-item, .mclas {
  display: flex;
  gap: 10px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--c-line-2);
  align-items: center;
}
.front-end-item:last-child, .mclas:last-child { border-bottom: none; }
.front-end-item-img {
  width: 80px;
  height: 56px;
  object-fit: cover;
  border-radius: 4px;
  flex-shrink: 0;
}
.front-end-item-text {
  font-size: 12px;
  color: var(--c-text-soft);
  flex: 1;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.mclas .list-img {
  width: 70px;
  height: 70px;
  flex-shrink: 0;
  border-radius: 4px;
  overflow: hidden;
}
.mclas .list-img img {
  width: 100%; height: 100%; object-fit: cover;
}
.mclas .list-content {
  flex: 1;
  min-width: 0;
}
.mclas .list-content a { color: var(--c-text); }
.mclas .list-content h3 {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.mclas .post-date {
  font-size: 11px;
  color: var(--c-muted);
}

/* 标签列表 */
#divTags ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px;
}
#divTags ul li a {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 3px;
  background: var(--c-line-2);
  font-size: 12px;
  color: var(--c-text-soft);
}
#divTags ul li a:hover {
  background: var(--c-primary);
  color: #fff;
}

/* === 5. footer === */
.footer {
  background: var(--c-line-2);
  color: var(--c-text-soft);
  padding: 20px;
  text-align: center;
  font-size: 12px;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}
.footer a { color: var(--c-text-soft); }
.footer a:hover { color: var(--c-primary); }
.footer img { display: inline-block; vertical-align: middle; }

/* === 6. 响应式 === */
@media (max-width: 900px) {
  .box-wrap { width: 100%; border-radius: 0; margin-top: 0; }
  .header { flex-wrap: wrap; padding: 12px 16px; gap: 8px; }
  .menu-header-container { width: 100%; padding: 12px 0 0; order: 3; }
  .menu { justify-content: center; flex-wrap: wrap; }
  .main, .aside { padding: 14px; }
  .post-list { grid-template-columns: 1fr; gap: 14px; }
  .mcdas { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .header { padding: 10px 12px; }
  .menu-header-container { padding: 8px 0 0; }
  .navbar-item > a { padding: 0 10px; font-size: 13px; }
  .mcdas { grid-template-columns: 1fr; }
  .slider__item { aspect-ratio: 16/7; }
}