:root {
  --primary: #006eff;
  --primary2: #13adff;
  --primary-grad: linear-gradient(90deg, #006eff, #13adff);
  --bg: #f5f6f8;
  --card: #ffffff;
  --ink: #333333;
  --muted: #999999;
  --line: #eeeeee;
  --price: #ff4800;
  --topbar: #1f2329;
  --radius: 4px;
  --shadow: 0 0 10px rgba(0, 0, 0, .05);
  --font: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --wp: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 14px;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary2); }
img { max-width: 100%; height: auto; vertical-align: middle; }
.wrap { width: min(var(--wp), calc(100% - 24px)); margin: 0 auto; }

/* top bar */
.topbar {
  background: var(--topbar);
  color: #c8c9cc;
  font-size: 12px;
  line-height: 32px;
}
.topbar .wrap { display: flex; justify-content: space-between; gap: 12px; }
.topbar a { color: #c8c9cc; }
.topbar a:hover { color: #fff; }
.topbar .em { color: #ffd666; }

/* header */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 64px;
  padding: 8px 0;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: .5px;
  white-space: nowrap;
}
.brand-mark {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--primary-grad);
  color: #fff; display: grid; place-items: center;
  font-size: 14px; font-weight: 800;
}
.nav {
  display: flex; flex-wrap: wrap; gap: 4px 2px; flex: 1;
}
.nav a {
  color: #505050;
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 15px;
  font-weight: 500;
}
.nav a:hover, .nav a.active {
  color: var(--primary);
  background: rgba(0, 110, 255, .06);
}
.header-actions { display: flex; align-items: center; gap: 8px; }
.search-mini {
  display: flex; align-items: center;
  border: 1px solid #e5e5e5; border-radius: 20px;
  overflow: hidden; background: #fafafa;
}
.search-mini input {
  border: 0; outline: 0; background: transparent;
  padding: 7px 12px; width: 140px; font-size: 13px;
}
.search-mini button {
  border: 0; background: transparent; color: #8590a6;
  padding: 0 12px 0 0; cursor: pointer;
}
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 8px 14px; border-radius: 4px; border: 0;
  font-weight: 600; cursor: pointer; font-size: 13px;
  text-decoration: none !important;
}
.btn-primary {
  color: #fff !important;
  background-image: var(--primary-grad);
  box-shadow: 0 5px 10px 0 rgba(16, 110, 253, .25);
}
.btn-primary:hover { filter: brightness(1.05); color: #fff !important; }
.btn-ghost {
  background: #fff; border: 1px solid #e5e5e5; color: #505050 !important;
}
.btn-tg {
  background: #229ed9; color: #fff !important;
}
.btn-lg { padding: 12px 22px; font-size: 15px; }

/* notice */
.notice-bar {
  background: #fff7e8;
  border: 1px solid #ffe1a6;
  color: #ad6800;
  padding: 10px 14px;
  border-radius: var(--radius);
  margin: 16px 0 0;
  font-size: 13px;
}

/* layout */
.main { padding: 16px 0 48px; }
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 16px;
  margin-top: 16px;
}
@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { order: 2; }
}

.panel {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 14px 16px 18px;
}
.panel-hd {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px; padding-bottom: 10px;
  border-bottom: 1px solid #f0f0f0;
}
.panel-hd h2, .panel-hd h1 {
  margin: 0; font-size: 18px; font-weight: 700;
  position: relative; padding-left: 10px;
}
.panel-hd h2::before, .panel-hd h1::before {
  content: ""; position: absolute; left: 0; top: 4px; bottom: 4px;
  width: 3px; border-radius: 2px; background: var(--primary-grad);
}
.panel-hd .more { color: var(--muted); font-size: 12px; }

/* cards - yxymk style */
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
@media (max-width: 1100px) { .card-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 780px) { .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .card-grid { grid-template-columns: 1fr; } }

.card-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .3s;
}
.card-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.card-item .cover {
  display: block;
  aspect-ratio: 3 / 2;
  background: #eef2f7 center/cover no-repeat;
  overflow: hidden;
}
.card-item .cover img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .35s;
}
.card-item:hover .cover img { transform: scale(1.05); }
.card-item .title {
  display: -webkit-box !important;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  padding: 12px 12px 0;
  min-height: 48px;
  font-size: 15px;
  color: var(--ink);
  letter-spacing: .3px;
  line-height: 1.4;
  font-weight: 600;
}
.card-item .title:hover { color: var(--primary); }
.card-item .meta-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 12px 0; color: var(--muted); font-size: 12px;
}
.card-item .cat {
  color: #70b4f9;
  background: rgba(0, 132, 255, .1);
  padding: 2px 6px;
  border-radius: 2px;
  font-size: 12px;
}
.card-item .cat:hover {
  background-image: var(--primary-grad);
  color: #fff;
}
.card-foot {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 12px 12px; color: #bdbdbd; font-size: 12px;
}
.card-foot .price {
  color: var(--price);
  font-weight: 700;
  font-size: 14px;
}
.sticky-tag {
  position: absolute; top: 8px; left: 8px;
  background-image: var(--primary-grad);
  color: #fff; font-size: 12px; padding: 2px 6px; border-radius: 2px;
  z-index: 2;
}
.card-cover-wrap { position: relative; }

/* sidebar */
.side-block { margin-bottom: 14px; }
.side-block h3 {
  margin: 0 0 10px; font-size: 15px; padding-left: 8px;
  border-left: 3px solid var(--primary);
}
.side-cats { display: flex; flex-wrap: wrap; gap: 8px; }
.side-cats a {
  background: #f4faff; color: #3385ff;
  border: 1px solid #d6ebff;
  padding: 6px 10px; border-radius: 3px; font-size: 13px;
}
.side-cats a:hover {
  background-image: var(--primary-grad); color: #fff; border-color: transparent;
}
.side-list { list-style: none; margin: 0; padding: 0; }
.side-list li {
  padding: 8px 0; border-bottom: 1px dashed #f0f0f0;
  display: flex; gap: 8px; align-items: flex-start;
}
.side-list li:last-child { border-bottom: 0; }
.side-list .num {
  width: 18px; height: 18px; border-radius: 3px;
  background: #eef2f7; color: #8590a6;
  font-size: 12px; display: grid; place-items: center; flex-shrink: 0;
}
.side-list li:nth-child(-n+3) .num {
  background-image: var(--primary-grad); color: #fff;
}
.side-list a {
  color: #505050; font-size: 13px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.side-list a:hover { color: var(--primary); }

/* detail / category */
.breadcrumb {
  color: var(--muted); font-size: 13px; margin: 12px 0;
}
.breadcrumb a { color: var(--muted); }
.cate-intro {
  color: #666; background: #fff; border: 1px solid var(--line);
  padding: 12px 14px; border-radius: var(--radius); margin-bottom: 14px;
}
.item-detail {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 22px;
}
.item-detail h1 { margin: 0 0 12px; font-size: 24px; line-height: 1.35; }
.item-meta {
  display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center;
  color: var(--muted); margin-bottom: 16px; font-size: 13px;
}
.item-meta .price { color: var(--price); font-size: 20px; font-weight: 800; }
.tag {
  display: inline-block; background: rgba(0,132,255,.1); color: #3385ff;
  border-radius: 2px; padding: 2px 8px; font-size: 12px; margin-right: 4px;
}
.item-cover img, .gallery img {
  width: 100%; border-radius: 4px; border: 1px solid var(--line); display: block;
}
.gallery {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px; margin: 14px 0;
}
.cta-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0; }
.prose {
  border-top: 1px solid #f0f0f0; padding-top: 16px; font-size: 15px; color: #404040;
}
.prose h2 { font-size: 18px; margin: 1.2em 0 .6em; }
.prose img { border-radius: 4px; }
.faq { margin-top: 24px; }
.faq details {
  background: #fafafa; border: 1px solid var(--line); border-radius: 4px;
  padding: 12px 14px; margin-bottom: 8px;
}
.faq summary { cursor: pointer; font-weight: 600; }
.pagination { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 18px; }
.pagination a, .pagination .current {
  min-width: 32px; text-align: center; padding: 6px 10px;
  border: 1px solid var(--line); background: #fff; border-radius: 3px; color: #666;
}
.pagination .current {
  background-image: var(--primary-grad); color: #fff; border-color: transparent;
}
.search-form { display: flex; gap: 8px; margin-bottom: 14px; }
.search-form input {
  flex: 1; padding: 10px 12px; border: 1px solid #e5e5e5; border-radius: 4px;
  background: #fff; font-size: 14px;
}

/* footer */
.site-footer {
  background: #1f2329; color: #8a8f99; padding: 28px 0;
  font-size: 13px; margin-top: 20px;
}
.site-footer a { color: #b0b4bc; }
.site-footer a:hover { color: #fff; }
.footer-inner { display: grid; gap: 6px; }
.muted { color: var(--muted); }
.center { text-align: center; padding: 40px 0; }

.float-tg {
  position: fixed; right: 16px; bottom: 20px; z-index: 60;
  background: #229ed9; color: #fff !important;
  padding: 12px 16px; border-radius: 24px; font-weight: 700;
  box-shadow: 0 8px 20px rgba(34, 158, 217, .35);
  text-decoration: none !important;
}
@media (max-width: 720px) {
  .nav { width: 100%; }
  .search-mini input { width: 100px; }
  .brand { font-size: 17px; }
}