* {
  box-sizing: border-box;
}

body.pc-single-page {
  --theme: #ff2442;
  --theme-dark: #e51f38;
  --theme-soft: #fff1f3;
  --text-main: #1f2933;
  --text-sub: #667085;
  --text-light: #98a2b3;
  --line: #edf0f3;
  --page-bg: #f6f7f8;
  --card-bg: #fff;
  margin: 0;
  min-width: 1200px;
  color: var(--text-main);
  background: var(--page-bg);
  font: 14px/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}

.pc-single-page a {
  color: inherit;
  text-decoration: none;
}

.pc-single-page a:hover {
  color: var(--theme);
}

.pc-single-page img {
  display: block;
  max-width: 100%;
}

.pc-single-page button,
.pc-single-page input {
  font: inherit;
}

.pcs-wrap {
  width: 1200px;
  margin: 0 auto;
}

.pcs-topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 72px;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
  transition: box-shadow .18s ease, border-color .18s ease;
}

.pcs-topbar.is-stuck {
  border-bottom-color: rgba(255, 36, 66, .16);
  box-shadow: 0 10px 28px rgba(15, 23, 42, .08);
}

.pcs-topbar-inner {
  height: 72px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.pcs-brand {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.pcs-brand img {
  width: auto;
  max-width: 150px;
  max-height: 46px;
  object-fit: contain;
}

.pcs-brand span {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.pcs-nav {
  height: 72px;
  min-width: 0;
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  gap: 26px;
  overflow: hidden;
}

.pcs-nav a {
  position: relative;
  flex: 0 0 auto;
  color: #222;
  font-size: 16px;
  line-height: 72px;
  white-space: nowrap;
}

.pcs-nav a:hover,
.pcs-nav a.active {
  color: var(--theme);
}

.pcs-nav a.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 14px;
  width: 18px;
  height: 3px;
  border-radius: 3px;
  background: var(--theme);
  transform: translateX(-50%);
}

.pcs-search {
  width: 290px;
  height: 40px;
  margin-left: auto;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  overflow: hidden;
  border: 1px solid transparent;
  border-radius: 6px;
  background: #f2f3f5;
}

.pcs-search:focus-within {
  border-color: var(--theme);
  background: #fff;
}

.pcs-search input {
  min-width: 0;
  flex: 1 1 auto;
  height: 40px;
  padding: 0 14px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text-main);
}

.pcs-search input::placeholder {
  color: #a0a6b0;
}

.pcs-search button {
  width: 68px;
  height: 30px;
  margin-right: 5px;
  border: 0;
  border-radius: 5px;
  background: #fff;
  color: var(--theme);
  cursor: pointer;
}

.pcs-main {
  min-height: calc(100vh - 180px);
  padding-bottom: 42px;
}

.pcs-hero {
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.pcs-crumb {
  height: 46px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-light);
  font-size: 13px;
}

.pcs-crumb a {
  color: #667085;
}

.pcs-crumb em {
  font-style: normal;
  color: var(--text-sub);
}

.pcs-hero-content {
  padding: 26px 0 44px;
}

.pcs-hero-content span {
  color: var(--theme);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
}

.pcs-hero-content h1 {
  margin: 8px 0 10px;
  color: #111827;
  font-size: 40px;
  line-height: 1.2;
  letter-spacing: 0;
}

.pcs-hero-content p {
  width: 620px;
  margin: 0;
  color: var(--text-sub);
  font-size: 16px;
  line-height: 1.8;
}

.pcs-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 24px;
  margin-top: 24px;
  align-items: start;
}

.pcs-side {
  position: sticky;
  top: 96px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.pcs-side-title {
  padding: 0 10px 14px;
  border-bottom: 1px solid var(--line);
  color: #111827;
  font-size: 18px;
  font-weight: 800;
}

.pcs-side-list {
  padding-top: 10px;
}

.pcs-side-list a {
  height: 44px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  border-radius: 6px;
  color: #4b5563;
  font-size: 15px;
}

.pcs-side-list a:hover,
.pcs-side-list a.active {
  background: var(--theme-soft);
  color: var(--theme);
  font-weight: 700;
}

.pcs-article {
  min-width: 0;
  padding: 34px 44px 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.pcs-article-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.pcs-article-head span {
  color: var(--theme);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
}

.pcs-article-head h2 {
  margin: 6px 0 0;
  color: #111827;
  font-size: 28px;
  line-height: 1.35;
  letter-spacing: 0;
}

.pcs-rich {
  padding-top: 28px;
  color: #344054;
  font-size: 16px;
  line-height: 2;
  word-break: break-word;
}

.pcs-rich:empty::before {
  content: "暂无内容";
  color: var(--text-light);
}

.pcs-rich p {
  margin: 0 0 18px;
}

.pcs-rich h1,
.pcs-rich h2,
.pcs-rich h3,
.pcs-rich h4 {
  margin: 30px 0 14px;
  color: #111827;
  line-height: 1.35;
  letter-spacing: 0;
}

.pcs-rich h1 { font-size: 28px; }
.pcs-rich h2 { font-size: 24px; }
.pcs-rich h3 { font-size: 20px; }
.pcs-rich h4 { font-size: 18px; }

.pcs-rich img {
  max-width: 100%;
  height: auto !important;
  margin: 22px auto;
  border-radius: 8px;
}

.pcs-rich table {
  width: 100% !important;
  margin: 22px 0;
  border-collapse: collapse;
  border: 1px solid var(--line);
}

.pcs-rich th,
.pcs-rich td {
  padding: 12px 14px;
  border: 1px solid var(--line);
  color: #344054;
  text-align: left;
}

.pcs-rich th {
  background: #f8fafc;
  color: #111827;
  font-weight: 700;
}

.pcs-rich ul,
.pcs-rich ol {
  margin: 0 0 18px;
  padding-left: 24px;
}

.pcs-rich li {
  margin-bottom: 8px;
}

.pcs-rich a {
  color: var(--theme);
}

.pch-footer {
  margin-top: 0;
  padding: 28px 0 34px;
  background: #fff;
  border-top: 1px solid var(--line);
}

.pch-footer .pch-wrap {
  width: 1200px;
  margin: 0 auto;
}

.pch-footer-main {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
}

.pch-footer-left {
  min-width: 0;
}

.pch-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 12px;
  color: #555;
}

.pch-footer-info {
  color: var(--text-light);
  font-size: 13px;
}

.pc-single-page .pch-footer-icp {
  flex: 0 0 auto;
  color: #9ca3af;
  font-size: 13px;
  white-space: nowrap;
}

.pc-single-page .pch-footer-icp:hover {
  color: var(--theme);
}