/* ===== 上埠电瓷网 · 青瓷墨韵主题 ===== */
:root {
  --ink: #1e2622;
  --ink-2: #2b3530;
  --celadon: #2f7a6b;
  --celadon-deep: #1f5a4e;
  --celadon-light: #4b9a88;
  --celadon-pale: #e3efe9;
  --amber: #d9983a;
  --amber-deep: #b87b22;
  --seal: #b0492f;
  --bg: #f5f3ec;
  --panel: #ffffff;
  --line: #e2ddd0;
  --text: #2c322e;
  --text-2: #6d7570;
  --text-3: #9aa19b;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 15px; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}
a { color: var(--text); text-decoration: none; }
a:hover { color: var(--celadon); text-decoration: underline; }
img { max-width: 100%; display: block; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 14px; }

.kaiti { font-family: "Kaiti SC", "STKaiti", "KaiTi", "Noto Serif SC", serif; }

/* ===== 印章 logo ===== */
.seal {
  display: inline-flex; align-items: center; justify-content: center;
  width: 54px; height: 54px; border-radius: 10px;
  background: var(--seal);
  color: #fff; font-size: 1.7rem;
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .35), 0 3px 8px rgba(0, 0, 0, .3);
  transform: rotate(-3deg);
}

/* ===== 头部（深色 masthead） ===== */
.masthead {
  background:
    radial-gradient(circle at 85% 20%, rgba(75, 154, 136, .18), transparent 45%),
    linear-gradient(120deg, #182019, var(--ink) 55%, var(--ink-2));
  color: #dfe6e1;
  border-bottom: 3px solid var(--amber);
}
.mast-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; padding-top: 24px; padding-bottom: 24px;
}
.brand { display: flex; align-items: center; gap: 16px; }
.brand:hover { text-decoration: none; }
.brand-text strong {
  display: block;
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
  font-size: 2rem; color: #fff; letter-spacing: 6px; line-height: 1.3;
}
.brand-text em {
  font-style: normal; font-size: .78rem; color: var(--celadon-light);
  letter-spacing: 3px;
}
.mast-right { text-align: right; flex-shrink: 0; }
.mast-date { font-size: .82rem; color: #a8b3ac; }
.mast-slogan {
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
  font-size: 1.05rem; color: var(--amber);
  letter-spacing: 4px; margin-top: 4px;
}

/* ===== 导航（青瓷条 + 内嵌搜索） ===== */
.nav { background: var(--celadon); box-shadow: 0 2px 6px rgba(30, 38, 34, .18); position: sticky; top: 0; z-index: 50; }
.nav-inner { display: flex; align-items: center; }
.nav-inner > a {
  color: #e4f0eb; padding: 12px 24px;
  font-size: 1rem; letter-spacing: 2px;
  position: relative; display: block;
}
.nav-inner > a:hover { background: var(--celadon-deep); color: #fff; text-decoration: none; }
.nav-inner > a.active { color: #fff; font-weight: 700; }
.nav-inner > a.active::after {
  content: ""; position: absolute; left: 20px; right: 20px; bottom: 6px;
  height: 3px; border-radius: 2px; background: var(--amber);
}
.nav-search { margin-left: auto; display: flex; padding: 7px 0; }
.nav-search input {
  width: 200px; height: 32px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .35);
  border-radius: 16px 0 0 16px;
  padding: 0 14px; font-size: .82rem; color: #fff; outline: none;
}
.nav-search input::placeholder { color: rgba(255, 255, 255, .6); }
.nav-search input:focus { background: rgba(255, 255, 255, .22); }
.nav-search button {
  height: 32px; padding: 0 16px;
  background: var(--amber); color: var(--ink);
  border: none; border-radius: 0 16px 16px 0;
  font-size: .82rem; font-weight: 700; cursor: pointer;
}
.nav-search button:hover { background: var(--amber-deep); color: #fff; }

/* ===== 公告条 ===== */
.notice-bar {
  background: #fdf9ef;
  border: 1px solid #eadfc4;
  border-left: 4px solid var(--amber);
  color: #7a6528;
  font-size: .85rem;
  padding: 8px 14px;
  margin-top: 14px;
  border-radius: 0 6px 6px 0;
}
.notice-bar b {
  display: inline-block; background: var(--seal); color: #fff;
  font-size: .72rem; border-radius: 3px; padding: 0 7px; margin-right: 8px;
  font-weight: 400;
}
.notice-bar a { color: var(--celadon); }

/* ===== 主区 ===== */
.main { margin-top: 14px; margin-bottom: 30px; }
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 16px;
  box-shadow: 0 1px 3px rgba(30, 38, 34, .05);
}
.panel-hd {
  display: flex; align-items: baseline; justify-content: space-between;
  padding: 14px 18px 10px;
  border-bottom: 1px solid var(--line);
}
.panel-hd h2 {
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
  font-size: 1.3rem; color: var(--ink); letter-spacing: 2px;
  display: flex; align-items: center; gap: 10px;
}
.panel-hd h2::before {
  content: ""; width: 8px; height: 8px;
  background: var(--amber);
  transform: rotate(45deg);
  flex-shrink: 0;
}
.panel-hd h2 .sub {
  font-family: sans-serif;
  font-size: .68rem; color: var(--text-3); font-weight: 400;
  letter-spacing: 2px; text-transform: uppercase;
}
.panel-hd .more { font-size: .8rem; color: var(--text-3); }
.panel-bd { padding: 14px 18px; }

/* ===== 首页 hero ===== */
.hero { display: grid; grid-template-columns: 1.65fr 1fr; gap: 16px; margin-bottom: 16px; }
.carousel {
  position: relative; border-radius: 8px; overflow: hidden;
  height: 330px; background: var(--ink);
  box-shadow: 0 4px 16px rgba(30, 38, 34, .18);
}
.carousel-slide {
  position: absolute; inset: 0;
  opacity: 0; transition: opacity .6s;
  display: flex; align-items: flex-end;
}
.carousel-slide.on { opacity: 1; }
.carousel-slide .bg { position: absolute; inset: 0; }
.carousel-slide img.bg { width: 100%; height: 100%; object-fit: cover; }
.carousel-slide .cap {
  position: relative; width: 100%;
  padding: 42px 22px 16px;
  color: #fff; font-size: 1.05rem; font-weight: 700;
  background: linear-gradient(transparent, rgba(20, 26, 22, .78));
}
.carousel-dots {
  position: absolute; right: 16px; bottom: 14px;
  display: flex; gap: 6px; z-index: 2;
}
.carousel-dots i {
  width: 22px; height: 4px; border-radius: 2px;
  background: rgba(255, 255, 255, .4); cursor: pointer;
  transition: background .3s;
}
.carousel-dots i.on { background: var(--amber); }

/* 要闻卡 */
.headline-card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.headline-card .hc-hd {
  background: var(--ink); color: var(--amber);
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
  font-size: 1.05rem; letter-spacing: 3px;
  padding: 10px 16px;
}
.headline-top {
  display: block;
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
  color: var(--seal); font-weight: 700; font-size: 1.12rem;
  padding: 12px 16px 8px;
  border-bottom: 1px dashed var(--line);
}
.headline-card ul { list-style: none; padding: 6px 16px 12px; }
.headline-card li {
  padding: 6px 0;
  font-size: .9rem;
  overflow: hidden; white-space: nowrap; text-overflow: ellipsis;
}
.headline-card li::before { content: "◆"; color: var(--celadon-light); font-size: .6rem; margin-right: 7px; vertical-align: 2px; }
.headline-card .tag {
  display: inline-block;
  font-size: .68rem; color: var(--celadon-deep);
  border: 1px solid var(--celadon-light);
  border-radius: 3px; padding: 0 4px; margin-right: 6px;
  line-height: 1.5;
}

/* ===== 数据条 ===== */
.stat-strip {
  display: flex; text-align: center;
  background: var(--ink);
  border-radius: 8px;
  padding: 16px 0;
  margin-bottom: 16px;
}
.stat-strip div { flex: 1; border-right: 1px solid rgba(255, 255, 255, .1); }
.stat-strip div:last-child { border-right: none; }
.stat-strip b {
  display: block; font-size: 1.45rem; color: var(--amber);
  font-family: Georgia, serif;
}
.stat-strip span { font-size: .76rem; color: #93a39a; letter-spacing: 2px; }

/* ===== 新闻列表 ===== */
.news-list { list-style: none; }
.news-list li {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 8px 0;
  border-bottom: 1px dotted var(--line);
  font-size: .92rem;
}
.news-list li:last-child { border-bottom: none; }
.news-list .t { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.news-list .t::before { content: "[" attr(data-cat) "]"; color: var(--celadon); margin-right: 6px; font-size: .84rem; }
.news-list .d { color: var(--text-3); font-size: .8rem; flex-shrink: 0; }
.news-list.no-cat .t::before { content: "◆"; color: var(--celadon-light); font-size: .6rem; vertical-align: 2px; }

/* 焦点新闻（带图） */
.feat { display: flex; gap: 14px; padding-bottom: 12px; margin-bottom: 6px; border-bottom: 1px solid var(--line); }
.feat-img { width: 210px; height: 120px; flex-shrink: 0; border-radius: 6px; overflow: hidden; }
.feat-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.feat-img:hover img { transform: scale(1.05); }
.feat-title {
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
  font-size: 1.1rem; font-weight: 700; color: var(--ink);
  display: block; margin-bottom: 6px; line-height: 1.5;
}
.feat-txt p {
  font-size: .82rem; color: var(--text-2);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.feat-txt .d { font-size: .75rem; color: var(--text-3); }

/* ===== 布局栅格 ===== */
.cols-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cols-2 { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; }
.cols-news { display: grid; grid-template-columns: 1.6fr 1fr; gap: 16px; }

/* 选项卡 */
.tab-heads { display: flex; gap: 6px; }
.tab-heads span {
  font-size: .82rem; color: var(--text-2);
  padding: 2px 12px; cursor: pointer;
  border-radius: 14px; border: 1px solid var(--line);
}
.tab-heads span.on { background: var(--celadon); border-color: var(--celadon); color: #fff; }

/* ===== 论坛版块卡 ===== */
.board-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.board-card {
  display: flex; gap: 14px; align-items: flex-start;
  border: 1px solid var(--line); border-radius: 8px;
  padding: 16px; background: #fff;
  transition: border-color .2s, box-shadow .2s;
}
.board-card:hover { border-color: var(--celadon-light); box-shadow: 0 4px 14px rgba(47, 122, 107, .12); text-decoration: none; }
.bc-icon {
  width: 52px; height: 52px; flex-shrink: 0;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.35rem; color: #fff;
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
}
.bc-body { min-width: 0; }
.bc-body b { font-size: 1.02rem; color: var(--ink); }
.bc-body b:hover { color: var(--celadon); }
.bc-body .num { font-size: .72rem; color: var(--text-3); font-weight: 400; margin-left: 8px; }
.bc-body p { font-size: .83rem; color: var(--text-2); margin-top: 3px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.bc-last { display: block; font-size: .75rem; color: var(--text-3); margin-top: 6px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.bc-last .lk { color: var(--celadon); }

/* ===== 帖子列表 ===== */
.thread-tools { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.btn {
  display: inline-block;
  background: var(--celadon); color: #fff;
  border: none; border-radius: 20px;
  padding: 8px 24px; font-size: .9rem;
  cursor: pointer; letter-spacing: 1px;
}
.btn:hover { background: var(--celadon-deep); color: #fff; text-decoration: none; }
.btn.amber { background: var(--amber); color: var(--ink); font-weight: 700; }
.btn.amber:hover { background: var(--amber-deep); color: #fff; }
.thread-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.thread-table th {
  background: var(--celadon-pale); color: var(--celadon-deep);
  font-weight: 700; font-size: .8rem;
  padding: 8px 10px; text-align: left;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.thread-table td { padding: 10px; border-bottom: 1px solid #eeeade; vertical-align: middle; }
.thread-table tr:hover td { background: #f7faf8; }
.thread-title { font-weight: 700; }
.thread-title .digest { color: var(--seal); font-size: .72rem; border: 1px solid var(--seal); border-radius: 3px; padding: 0 4px; margin-right: 6px; font-weight: 400; }
.thread-title .top-flag { color: #fff; background: var(--seal); font-size: .72rem; border-radius: 3px; padding: 1px 5px; margin-right: 6px; font-weight: 400; }
.thread-meta { font-size: .76rem; color: var(--text-3); margin-top: 2px; }
.thread-num { text-align: center; color: var(--text-2); width: 90px; font-size: .82rem; }
.thread-num b { display: block; color: var(--text); font-size: .95rem; }
.thread-last { width: 170px; font-size: .78rem; color: var(--text-3); }
.thread-last a { color: var(--celadon); display: block; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }

/* ===== 帖子详情 ===== */
.post { display: flex; border-bottom: 1px solid var(--line); }
.post-side {
  width: 150px; flex-shrink: 0;
  background: #f4f2ea;
  border-right: 1px solid var(--line);
  padding: 18px 10px; text-align: center;
}
.avatar {
  width: 64px; height: 64px; border-radius: 14px;
  margin: 0 auto 8px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.35rem;
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .3);
}
.post-side .uname { font-weight: 700; font-size: .9rem; }
.post-side .ulevel {
  display: inline-block; margin-top: 6px;
  font-size: .7rem; color: var(--amber-deep);
  border: 1px solid var(--amber); border-radius: 10px; padding: 0 8px;
}
.post-side .ustat { font-size: .72rem; color: var(--text-3); margin-top: 10px; text-align: left; padding: 0 8px; }
.post-main { flex: 1; padding: 14px 20px; min-width: 0; }
.post-head { font-size: .78rem; color: var(--text-3); border-bottom: 1px dashed var(--line); padding-bottom: 8px; margin-bottom: 12px; display: flex; justify-content: space-between; }
.post-head .floor { color: var(--celadon); font-weight: 700; }
.post-body { font-size: .95rem; min-height: 90px; }
.post-body p { margin-bottom: 12px; }
.post-actions { text-align: right; margin-top: 14px; }
.post-actions a { font-size: .8rem; color: var(--text-3); margin-left: 14px; }
.post-actions a:hover { color: var(--celadon); }
.thread-h1 {
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
  font-size: 1.45rem; color: var(--ink); margin-bottom: 6px;
}
.thread-info { font-size: .8rem; color: var(--text-3); margin-bottom: 14px; }
.thread-info span { margin-right: 16px; }
.reply-box textarea {
  width: 100%; height: 110px;
  border: 1px solid var(--line); border-radius: 8px;
  padding: 10px; font-size: .9rem; font-family: inherit;
  resize: vertical; outline: none; background: #fdfcf8;
}
.reply-box textarea:focus { border-color: var(--celadon-light); background: #fff; }
.reply-tip { font-size: .78rem; color: var(--text-3); margin: 8px 0 12px; }

/* ===== 新闻详情 ===== */
.article-hd { text-align: center; padding: 28px 20px 18px; border-bottom: 1px solid var(--line); }
.article-hd h1 {
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
  font-size: 1.55rem; color: var(--ink); margin-bottom: 12px; line-height: 1.6;
}
.article-hd .meta { font-size: .8rem; color: var(--text-3); }
.article-hd .meta span { margin: 0 10px; }
.article-bd { padding: 26px 34px; font-size: .98rem; }
.article-bd p { margin-bottom: 16px; text-indent: 2em; }
.article-bd .lead { color: var(--celadon-deep); font-weight: 700; }
.article-bd img { margin: 10px auto 18px; border-radius: 8px; }
.article-ft { padding: 0 34px 26px; font-size: .82rem; color: var(--text-3); }
.prev-next { display: flex; justify-content: space-between; padding: 14px 20px; border-top: 1px solid var(--line); font-size: .85rem; }

/* ===== 分页 ===== */
.pager { display: flex; justify-content: center; gap: 6px; padding: 16px 0 6px; }
.pager a, .pager span {
  min-width: 32px; height: 32px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: 16px;
  font-size: .85rem; color: var(--text-2);
  background: #fff; padding: 0 12px;
}
.pager a:hover { border-color: var(--celadon); color: var(--celadon); text-decoration: none; }
.pager .on { background: var(--celadon); border-color: var(--celadon); color: #fff; }

/* ===== 黄页 ===== */
.firm-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.firm {
  border: 1px solid var(--line); border-radius: 8px;
  padding: 14px 16px; background: #fff;
  border-left: 4px solid var(--celadon-light);
  transition: box-shadow .2s;
}
.firm:hover { box-shadow: 0 4px 14px rgba(47, 122, 107, .12); }
.firm h3 { font-size: 1rem; color: var(--celadon-deep); margin-bottom: 6px; }
.firm h3 .badge { font-size: .68rem; color: var(--amber-deep); border: 1px solid var(--amber); border-radius: 3px; padding: 0 5px; margin-left: 8px; font-weight: 400; }
.firm p { font-size: .83rem; color: var(--text-2); margin-bottom: 3px; }
.firm p b { color: var(--text); font-weight: 400; }
.firm .tags { margin-top: 8px; }
.firm .tags i {
  font-style: normal; font-size: .72rem;
  background: var(--celadon-pale); color: var(--celadon-deep);
  border-radius: 3px; padding: 1px 7px; margin-right: 6px;
}
.firm-filter { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.firm-filter span {
  font-size: .82rem; color: var(--text-2);
  border: 1px solid var(--line); border-radius: 16px;
  padding: 3px 14px; cursor: pointer; background: #fff;
}
.firm-filter span.on { background: var(--celadon); border-color: var(--celadon); color: #fff; }

/* ===== 侧栏 ===== */
.rank-list { list-style: none; counter-reset: rank; }
.rank-list li {
  counter-increment: rank;
  padding: 7px 0; font-size: .88rem;
  display: flex; justify-content: space-between; gap: 10px;
  border-bottom: 1px dotted var(--line);
}
.rank-list li:last-child { border-bottom: none; }
.rank-list li::before {
  content: counter(rank);
  width: 18px; height: 18px; flex-shrink: 0;
  background: #cfd6cd; color: #fff;
  font-size: .72rem; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  margin-top: 4px;
}
.rank-list li:nth-child(-n+3)::before { background: var(--seal); }
.rank-list .t { flex: 1; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.rank-list .n { color: var(--text-3); font-size: .76rem; flex-shrink: 0; }
.link-list { font-size: .85rem; }
.link-list a { display: inline-block; margin: 0 14px 8px 0; color: var(--text-2); }
.link-list a:hover { color: var(--celadon); }

/* ===== 广告位 ===== */
.ad-slot { position: relative; margin-bottom: 16px; }
.ad-slot img { width: 100%; border-radius: 8px; display: block; box-shadow: 0 2px 10px rgba(30, 38, 34, .12); }
.ad-slot .ad-tag {
  position: absolute; top: 6px; left: 8px;
  font-size: .62rem; color: rgba(255, 255, 255, .9);
  background: rgba(30, 38, 34, .45);
  padding: 0 7px; border-radius: 8px; line-height: 1.7;
  pointer-events: none;
}
.ad-slot a:hover { text-decoration: none; }
.ad-banner { margin-bottom: 16px; }
.ad-side .ad-slot { margin-bottom: 12px; }
.ad-side .ad-slot:last-child { margin-bottom: 0; }

/* ===== 关于页 ===== */
.about-bd { padding: 24px 30px; font-size: .95rem; }
.about-bd h3 {
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
  color: var(--celadon-deep); margin: 20px 0 10px; font-size: 1.2rem;
}
.about-bd h3:first-child { margin-top: 0; }
.about-bd p { margin-bottom: 12px; text-indent: 2em; }
.about-bd ul { margin: 0 0 12px 2em; }
.about-bd li { margin-bottom: 6px; }
.about-hero {
  height: 190px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; text-align: center;
  background:
    radial-gradient(circle at 80% 30%, rgba(217, 152, 58, .25), transparent 40%),
    linear-gradient(120deg, #182019, #1e2622 55%, #2f4a40);
}
.about-hero h2 {
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
  font-size: 2rem; letter-spacing: 6px;
}
.about-hero p { letter-spacing: 3px; font-size: .85rem; color: var(--celadon-light); margin-top: 8px; }

/* ===== 页脚 ===== */
.footer { background: var(--ink); color: #8f9b93; margin-top: 24px; border-top: 3px solid var(--amber); }
.footer-main { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 30px; padding: 30px 14px 22px; }
.f-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.f-logo .seal { width: 38px; height: 38px; font-size: 1.2rem; border-radius: 7px; }
.f-logo strong {
  font-family: "Kaiti SC", "STKaiti", "KaiTi", serif;
  color: #fff; font-size: 1.2rem; letter-spacing: 3px;
}
.f-brand p { font-size: .8rem; line-height: 1.9; }
.footer h4 { color: var(--amber); font-size: .92rem; margin-bottom: 12px; letter-spacing: 2px; }
.footer .f-col a { color: #8f9b93; font-size: .82rem; display: block; margin-bottom: 7px; }
.footer .f-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  text-align: center;
  font-size: .76rem;
  padding: 14px;
  color: #67716b;
}

/* ===== 返回顶部 ===== */
.backtop {
  position: fixed; right: 26px; bottom: 60px;
  width: 42px; height: 42px;
  background: var(--ink); color: var(--amber);
  border: 1px solid var(--amber); border-radius: 50%;
  font-size: 1.1rem; cursor: pointer;
  display: none; z-index: 99;
}
.backtop:hover { background: var(--celadon-deep); }

/* ===== 面包屑 ===== */
.crumbs { font-size: .8rem; color: var(--text-3); margin: 14px 0 10px; }
.crumbs a { color: var(--text-2); }
.crumbs a:hover { color: var(--celadon); }

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .hero, .cols-3, .cols-2, .cols-news, .firm-grid, .board-grid { grid-template-columns: 1fr; }
  .mast-inner { flex-wrap: wrap; }
  .mast-right { display: none; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .nav-inner > a { padding: 11px 13px; font-size: .9rem; }
  .nav-search { display: none; }
  .post-side { width: 100px; }
  .article-bd { padding: 20px 16px; }
  .stat-strip { flex-wrap: wrap; }
}