/* =========================================================
   凯迪软件下载 kaidisoft — 白色软件下载站风格
   ========================================================= */
:root {
  --kd-primary: #2563eb;
  --kd-primary-dark: #1d4ed8;
  --kd-green: #16a34a;
  --kd-text: #1f2937;
  --kd-text-light: #6b7280;
  --kd-border: #e5e7eb;
  --kd-bg-soft: #f6f8fb;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 14px;
  color: var(--kd-text);
  background: #ffffff;
  line-height: 1.7;
}
a { color: var(--kd-primary); text-decoration: none; }
a:hover { color: var(--kd-primary-dark); }
img { max-width: 100%; }
.kd-container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* ---------- 头部 ---------- */
.kd-header { background: #fff; border-bottom: 1px solid var(--kd-border); position: sticky; top: 0; z-index: 100; }
.kd-header-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.kd-logo { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 700; color: var(--kd-text); white-space: nowrap; }
.kd-logo:hover { color: var(--kd-primary); }
.kd-logo-icon { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 8px; background: var(--kd-primary); color: #fff; font-size: 18px; }
.kd-logo-img { height: 38px; width: auto; display: block; }
.kd-nav ul { display: flex; list-style: none; margin: 0; padding: 0; gap: 4px; flex-wrap: wrap; }
.kd-nav a { display: block; padding: 8px 14px; border-radius: 6px; color: var(--kd-text); font-size: 15px; }
.kd-nav a:hover, .kd-nav li.active a { background: var(--kd-bg-soft); color: var(--kd-primary); }
.kd-search { margin-left: auto; }
.kd-search form { display: flex; }
.kd-search input { width: 220px; height: 34px; padding: 0 12px; border: 1px solid var(--kd-border); border-right: none; border-radius: 6px 0 0 6px; outline: none; font-size: 13px; }
.kd-search input:focus { border-color: var(--kd-primary); }
.kd-search button { height: 34px; padding: 0 16px; border: none; border-radius: 0 6px 6px 0; background: var(--kd-primary); color: #fff; cursor: pointer; }
.kd-search button:hover { background: var(--kd-primary-dark); }
.kd-menu-btn { display: none; margin-left: auto; background: none; border: none; cursor: pointer; padding: 8px; }
.kd-menu-btn span { display: block; width: 22px; height: 2px; background: var(--kd-text); margin: 5px 0; }

/* ---------- Hero 搜索区 ---------- */
.kd-hero { text-align: center; padding: 48px 0 32px; }
.kd-hero h1 { margin: 0 0 8px; font-size: 30px; color: var(--kd-text); }
.kd-hero p { margin: 0 0 20px; color: var(--kd-text-light); }
.kd-hero-search { display: flex; max-width: 560px; margin: 0 auto; }
.kd-hero-search input { flex: 1; height: 46px; padding: 0 16px; border: 2px solid var(--kd-primary); border-right: none; border-radius: 8px 0 0 8px; outline: none; font-size: 15px; }
.kd-hero-search button { height: 46px; padding: 0 28px; border: none; border-radius: 0 8px 8px 0; background: var(--kd-primary); color: #fff; font-size: 15px; cursor: pointer; }
.kd-hero-search button:hover { background: var(--kd-primary-dark); }

/* ---------- 分类导航 ---------- */
.kd-cat-nav { border: 1px solid var(--kd-border); border-radius: 8px; background: #fff; padding: 4px 8px; margin-bottom: 8px; }
.kd-cat-nav ul { display: flex; flex-wrap: wrap; list-style: none; margin: 0; padding: 0; }
.kd-cat-nav a { display: block; padding: 8px 14px; border-radius: 6px; color: var(--kd-text); font-size: 14px; }
.kd-cat-nav a:hover { background: var(--kd-bg-soft); color: var(--kd-primary); }

/* ---------- 区块 ---------- */
.kd-section { margin: 24px 0 32px; }
.kd-section-head { display: flex; align-items: center; justify-content: space-between; border-bottom: 2px solid var(--kd-primary); margin-bottom: 16px; padding-bottom: 8px; }
.kd-section-head h2 { margin: 0; font-size: 18px; color: var(--kd-text); padding-left: 10px; border-left: 4px solid var(--kd-primary); line-height: 1.2; }
.kd-more { font-size: 13px; }

/* ---------- 软件卡片网格 ---------- */
.kd-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; list-style: none; margin: 0; padding: 0; }
.kd-card { border: 1px solid var(--kd-border); border-radius: 8px; padding: 14px; background: #fff; transition: box-shadow .2s, transform .2s; }
.kd-card:hover { box-shadow: 0 4px 16px rgba(37, 99, 235, .1); transform: translateY(-2px); }
.kd-card-link { display: flex; align-items: center; gap: 10px; }
.kd-icon { display: inline-flex; align-items: center; justify-content: center; flex: none; width: 46px; height: 46px; border-radius: 10px; background: linear-gradient(135deg, #3b82f6, #2563eb); color: #fff; font-size: 20px; font-weight: 700; }
.kd-icon-sm { width: 40px; height: 40px; font-size: 17px; border-radius: 8px; }
.kd-icon-lg { width: 64px; height: 64px; font-size: 28px; border-radius: 14px; }
.kd-card-title { display: block; color: var(--kd-text); font-size: 15px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kd-card:hover .kd-card-title { color: var(--kd-primary); }
.kd-card-meta { display: flex; flex-wrap: wrap; gap: 4px 12px; margin: 10px 0 0; font-size: 12px; color: var(--kd-text-light); min-height: 16px; }
.kd-card-date { margin-left: auto; }

/* ---------- 通用列表 ---------- */
.kd-list { list-style: none; margin: 0; padding: 0; }
.kd-list li { display: flex; align-items: center; border-bottom: 1px dashed var(--kd-border); padding: 9px 2px; }
.kd-list li a:first-child { flex: 1; color: var(--kd-text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kd-list li a:first-child:hover { color: var(--kd-primary); }
.kd-list-date { font-size: 12px; color: var(--kd-text-light); }
.kd-list-lg .kd-list-item { display: flex; align-items: center; gap: 14px; border: 1px solid var(--kd-border); border-radius: 8px; padding: 14px; margin-bottom: 12px; }
.kd-list-item-title { display: block; font-size: 16px; font-weight: 600; color: var(--kd-text); }
.kd-list-item-title:hover { color: var(--kd-primary); }
.kd-list-info { flex: 1; min-width: 0; }
.kd-list-info .kd-card-meta { margin: 4px 0; }
.kd-list-summary { margin: 4px 0 0; font-size: 13px; color: var(--kd-text-light); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ---------- 按钮 ---------- */
.kd-btn { display: inline-block; padding: 8px 22px; border-radius: 6px; background: var(--kd-green); color: #fff; font-size: 14px; border: none; cursor: pointer; white-space: nowrap; }
.kd-btn:hover { background: #15803d; color: #fff; }
.kd-btn-sm { padding: 5px 16px; font-size: 13px; }
.kd-btn-lg { padding: 12px 34px; font-size: 16px; }
.kd-btn-scroll { background: var(--kd-primary); }
.kd-btn-scroll:hover { background: var(--kd-primary-dark); }

/* ---------- 面包屑 ---------- */
.kd-breadcrumb { padding: 16px 0 8px; font-size: 13px; color: var(--kd-text-light); }
.kd-breadcrumb span { margin: 0 6px; }
.kd-breadcrumb em { font-style: normal; color: var(--kd-text); }

/* ---------- 文章页 ---------- */
.kd-article { border: 1px solid var(--kd-border); border-radius: 8px; padding: 24px; background: #fff; }
.kd-article-title { margin: 0 0 16px; font-size: 24px; line-height: 1.4; }
.kd-down-box { display: flex; align-items: center; gap: 16px; background: var(--kd-bg-soft); border: 1px solid var(--kd-border); border-radius: 8px; padding: 16px; margin-bottom: 24px; }
.kd-down-info { flex: 1; min-width: 0; }
.kd-down-meta { margin: 0; display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 13px; color: var(--kd-text-light); }
.kd-article-body { font-size: 15px; overflow-wrap: break-word; }
.kd-article-body h2, .kd-article-body h3 { border-left: 4px solid var(--kd-primary); padding-left: 10px; }
.kd-article-body img { border-radius: 6px; }
.kd-article-body table { border-collapse: collapse; width: 100%; }
.kd-article-body td, .kd-article-body th { border: 1px solid var(--kd-border); padding: 6px 10px; }
.kd-tags { margin-top: 20px; }
.kd-tags a { display: inline-block; margin: 0 8px 8px 0; padding: 3px 12px; border-radius: 4px; background: var(--kd-bg-soft); color: var(--kd-text-light); font-size: 12px; }
.kd-tags a:hover { color: var(--kd-primary); }
.kd-post-nav { margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--kd-border); font-size: 14px; }
.kd-post-nav p { margin: 4px 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- 评论 ---------- */
.kd-comment { border-bottom: 1px dashed var(--kd-border); padding: 12px 2px; }
.kd-comment-head strong { color: var(--kd-primary); }
.kd-comment-time { margin-left: 10px; font-size: 12px; color: var(--kd-text-light); }
.kd-comment-body { margin-top: 4px; }
.kd-compost-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 10px; }
.kd-compost .ipt { height: 36px; padding: 0 12px; border: 1px solid var(--kd-border); border-radius: 6px; outline: none; }
.kd-compost .ipt:focus { border-color: var(--kd-primary); }
.kd-compost .verifyimg { height: 36px; cursor: pointer; }
.kd-compost-user { color: var(--kd-primary); }
.kd-compost-text { width: 100%; padding: 10px 12px; border: 1px solid var(--kd-border); border-radius: 6px; outline: none; font-family: inherit; font-size: 14px; resize: vertical; }
.kd-compost-text:focus { border-color: var(--kd-primary); }
.kd-compost-foot { margin-top: 10px; display: flex; align-items: center; gap: 14px; }

/* ---------- 分页 ---------- */
.kd-pagebar { margin: 24px 0; text-align: center; }
.kd-pagebar a, .kd-pagebar span { display: inline-block; min-width: 34px; padding: 6px 10px; margin: 0 3px; border: 1px solid var(--kd-border); border-radius: 6px; color: var(--kd-text); font-size: 13px; }
.kd-pagebar span, .kd-pagebar a:hover { background: var(--kd-primary); border-color: var(--kd-primary); color: #fff; }

/* ---------- 空状态 / 404 ---------- */
.kd-empty { padding: 40px 20px; text-align: center; color: var(--kd-text-light); border: 1px dashed var(--kd-border); border-radius: 8px; }
.kd-404 h1 { font-size: 64px; margin: 0; color: var(--kd-primary); }

/* ---------- 页脚 ---------- */
.kd-footer { margin-top: 48px; border-top: 1px solid var(--kd-border); background: var(--kd-bg-soft); padding: 24px 0; text-align: center; color: var(--kd-text-light); font-size: 13px; }
.kd-footer p { margin: 4px 0; }
.kd-footer-links a { color: var(--kd-text-light); margin: 0 2px; }
.kd-footer-links a:hover { color: var(--kd-primary); }
.kd-footer-links span { margin: 0 6px; color: var(--kd-border); }

/* ---------- 返回顶部 ---------- */
.kd-backtop {
  display: none;
  position: fixed;
  right: 28px;
  bottom: 48px;
  z-index: 200;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--kd-primary);
  box-shadow: 0 4px 12px rgba(37, 99, 235, .35);
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .25s, transform .25s;
}
.kd-backtop.show { display: flex; opacity: 1; transform: translateY(0); }
.kd-backtop:hover { background: var(--kd-primary-dark); }
@media (max-width: 860px) {
  .kd-backtop { display: none !important; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .kd-menu-btn { display: block; }
  .kd-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--kd-border); box-shadow: 0 8px 16px rgba(0,0,0,.06); }
  .kd-nav.open { display: block; }
  .kd-nav ul { flex-direction: column; padding: 8px; }
  .kd-search { display: none; }
  .kd-hero h1 { font-size: 24px; }
  .kd-grid { grid-template-columns: repeat(auto-fill, minmax(45%, 1fr)); }
  .kd-down-box { flex-wrap: wrap; }
  .kd-down-box .kd-btn-lg { width: 100%; text-align: center; }
  .kd-list-lg .kd-list-item { flex-wrap: wrap; }
  .kd-list-summary { display: none; }
}