/* ===== 帮助中心共用样式（与启明门户首页风格统一） ===== */
/* 主题色与首页一致：深蓝 #1a2b4c + 蓝青渐变 #4facfe → #00f2fe */
:root {
  --c-primary: #1a2b4c;
  --c-primary-light: #2d4a6f;
  --c-text: #333;
  --c-text-soft: #555;
  --c-text-mute: #777;
  --c-border: #e5e7eb;
  --c-bg-soft: #f8fafc;
  --c-bg-blue: #f0f4ff;
  --c-grad: linear-gradient(to right, #4facfe, #00f2fe);
  --c-grad-bg: linear-gradient(135deg, #f0f4ff, #e8eeff);
  --c-ok: #2e7d32;
  --c-ok-bg: #e8f5e9;
  --c-warn: #ef6c00;
  --c-warn-bg: #fff3e0;
  --c-err: #c62828;
  --c-err-bg: #ffebee;
  --c-info: #1565c0;
  --c-info-bg: #e3f2fd;
  --c-gray: #6b7280;
  --c-gray-bg: #f3f4f6;
  --shadow: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.08);
  --radius: 12px;
  --radius-sm: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
  color: var(--c-text);
  background: #fff;
  font-size: 15px;
}
a { color: #1d4ed8; text-decoration: none; transition: color 0.2s; }
a:hover { color: #00f2fe; text-decoration: underline; }
img { max-width: 100%; height: auto; }
code, kbd {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.88em;
  background: #f3f4f6;
  padding: 1px 6px;
  border-radius: 4px;
  color: #d6336c;
}
pre {
  background: #1a2b4c;
  color: #e2e8f0;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.65;
  margin: 12px 0;
}
pre code { background: transparent; color: inherit; padding: 0; }
::selection { background: #4facfe; color: #fff; }

/* ===== 顶部 hero ===== */
.docs-hero {
  background: linear-gradient(rgba(18,28,50,0.9), rgba(18,28,50,0.95)), url('/assets/market-155128.avif') no-repeat center center/cover;
  color: #fff;
  padding: 60px 20px 50px;
}
.docs-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}
.docs-hero-text { flex: 1; min-width: 280px; }
.docs-hero-text .crumb {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 12px;
}
.docs-hero-text .crumb a { color: rgba(255,255,255,0.7); }
.docs-hero-text h1 {
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  margin-bottom: 14px;
  line-height: 1.3;
  background: var(--c-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.docs-hero-text p {
  font-size: 1rem;
  color: rgba(255,255,255,0.85);
  max-width: 720px;
}
.docs-hero-search {
  flex: 0 0 320px;
  max-width: 100%;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.docs-hero-search .label {
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}
.docs-hero-search .quick-list {
  list-style: none;
  font-size: 14px;
}
.docs-hero-search .quick-list li {
  padding: 4px 0;
  color: rgba(255,255,255,0.85);
}
.docs-hero-search .quick-list li a { color: #4facfe; }
.docs-hero-search .quick-list li a:hover { color: #00f2fe; }

/* ===== 主体两栏布局 ===== */
.docs-body {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px 60px;
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  align-items: start;
}
.docs-side {
  position: sticky;
  top: 20px;
  background: var(--c-bg-soft);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 18px 20px;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
}
.docs-side h4 {
  font-size: 12px;
  letter-spacing: 1.5px;
  color: var(--c-text-mute);
  text-transform: uppercase;
  margin: 14px 0 6px;
}
.docs-side h4:first-child { margin-top: 0; }
.docs-side ul { list-style: none; }
.docs-side li { margin: 2px 0; }
.docs-side li a {
  display: block;
  padding: 6px 10px;
  border-radius: 6px;
  color: var(--c-text-soft);
  font-size: 14px;
  line-height: 1.5;
  transition: background 0.15s, color 0.15s;
}
.docs-side li a:hover { background: #fff; color: var(--c-primary); text-decoration: none; }
.docs-side li a.current {
  background: var(--c-grad);
  color: #fff;
  font-weight: 600;
}

.docs-content { min-width: 0; }
.docs-content h1 {
  font-size: 1.8rem;
  color: var(--c-primary);
  margin-bottom: 8px;
  line-height: 1.3;
}
.docs-content .lead {
  color: var(--c-text-soft);
  font-size: 1rem;
  margin-bottom: 26px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--c-border);
}
.docs-content h2 {
  font-size: 1.35rem;
  color: var(--c-primary);
  margin: 36px 0 14px;
  padding-left: 12px;
  border-left: 4px solid;
  border-image: var(--c-grad) 1;
  line-height: 1.4;
}
.docs-content h3 {
  font-size: 1.1rem;
  color: var(--c-primary);
  margin: 24px 0 10px;
}
.docs-content h4 {
  font-size: 1rem;
  color: var(--c-primary-light);
  margin: 18px 0 8px;
}
.docs-content p { margin: 10px 0; color: var(--c-text-soft); }
.docs-content ul, .docs-content ol {
  margin: 10px 0 14px 22px;
  color: var(--c-text-soft);
}
.docs-content li { margin: 4px 0; }
.docs-content strong { color: var(--c-primary); }
.docs-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 14px 0 18px;
  font-size: 14px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.docs-content th, .docs-content td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--c-border);
  text-align: left;
  vertical-align: top;
}
.docs-content th {
  background: var(--c-bg-soft);
  color: var(--c-primary);
  font-weight: 600;
  white-space: nowrap;
}
.docs-content tbody tr:last-child td { border-bottom: none; }
.docs-content tbody tr:hover { background: #fafbff; }

/* ===== 状态色块 ===== */
.tag {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  margin: 0 2px;
  white-space: nowrap;
  line-height: 1.5;
}
.tag.ok    { background: var(--c-ok-bg);   color: var(--c-ok); }
.tag.warn  { background: var(--c-warn-bg); color: var(--c-warn); }
.tag.err   { background: var(--c-err-bg);  color: var(--c-err); }
.tag.info  { background: var(--c-info-bg); color: var(--c-info); }
.tag.gray  { background: var(--c-gray-bg); color: var(--c-gray); }
.tag.grad  { background: var(--c-grad);    color: #fff; }

/* ===== Feature 卡片（与首页同款） ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin: 16px 0 24px;
}
.feature-card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 22px 20px;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.feature-card .icon {
  font-size: 1.6rem;
  margin-bottom: 8px;
  display: block;
}
.feature-card h4 {
  color: var(--c-primary);
  margin: 0 0 6px;
  font-size: 1rem;
}
.feature-card p {
  font-size: 13.5px;
  color: var(--c-text-mute);
  margin: 0;
  line-height: 1.65;
}

/* ===== 提示框 ===== */
.callout {
  border-left: 4px solid;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin: 14px 0;
  background: var(--c-bg-soft);
  font-size: 14px;
  line-height: 1.7;
}
.callout p { margin: 4px 0; color: var(--c-text-soft); }
.callout p:first-child { margin-top: 0; }
.callout p:last-child { margin-bottom: 0; }
.callout.tip    { border-color: #4facfe; background: #ecfeff; }
.callout.warn   { border-color: var(--c-warn); background: var(--c-warn-bg); }
.callout.danger { border-color: var(--c-err); background: var(--c-err-bg); }
.callout.info   { border-color: var(--c-info); background: var(--c-info-bg); }
.callout .ct {
  display: inline-block;
  font-weight: 700;
  margin-right: 6px;
  color: var(--c-primary);
  font-size: 13px;
  letter-spacing: 0.5px;
}

/* ===== 流程图（纯HTML/CSS） ===== */
.flow {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 14px 18px;       /* row-gap 14px（上下卡片间距）column-gap 18px */
  margin: 18px 0 22px;
}
.flow-step {
  flex: 1 1 150px;
  min-width: 150px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 14px 12px;
  text-align: center;
  position: relative;
}
.flow-step:last-child::after { display: none; }
.flow-step .no {
  width: 26px; height: 26px;
  background: var(--c-grad);
  color: #fff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 6px;
}
.flow-step .name {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-primary);
  margin-bottom: 2px;
}
.flow-step .desc {
  font-size: 12px;
  color: var(--c-text-mute);
  line-height: 1.5;
}
.flow-step:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -18px;
  top: 50%;
  transform: translateY(-50%);
  color: #4facfe;
  font-weight: 700;
  font-size: 1.1rem;
}
@media (max-width: 720px) {
  .flow { flex-direction: column; gap: 12px; }
  .flow-step { margin-bottom: 0; }
  .flow-step::after { display: none !important; }
  .flow-step:not(:last-child)::after {
    content: '↓';
    right: 50%;
    top: auto;
    bottom: -18px;
    transform: translateX(50%);
  }
}

/* ===== 步骤状态机 ===== */
.status-machine {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 20px;
}
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
  border: 1px solid;
  background: #fff;
}
.status-pill .dot { width: 8px; height: 8px; border-radius: 50%; }
.status-pill.st-muted { color: var(--c-text-mute); border-color: #e5e7eb; }
.status-pill.st-muted .dot { background: #9ca3af; }
.status-pill.p-203 { color: var(--c-info); border-color: #bbdefb; background: var(--c-info-bg); }
.status-pill.st-info .dot { background: var(--c-info); }
.status-pill.p-204 { color: var(--c-warn); border-color: #ffe0b2; background: var(--c-warn-bg); }
.status-pill.st-warn .dot { background: var(--c-warn); }
.status-pill.p-205 { color: var(--c-warn); border-color: #ffe0b2; background: var(--c-warn-bg); }
.status-pill.st-warn .dot { background: var(--c-warn); }
.status-pill.p-206 { color: var(--c-info); border-color: #90caf9; background: #e3f2fd; }
.status-pill.st-info .dot { background: var(--c-info); }
.status-pill.p-201 { color: var(--c-ok); border-color: #c8e6c9; background: var(--c-ok-bg); }
.status-pill.st-ok .dot { background: var(--c-ok); }
.status-pill.p-504 { color: var(--c-err); border-color: #ef9a9a; background: var(--c-err-bg); }
.status-pill.st-err .dot { background: var(--c-err); }

/* ===== FAQ ===== */
.faq-item {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  margin: 10px 0;
  transition: border-color 0.2s;
}
.faq-item:hover { border-color: #4facfe; }
.faq-q {
  font-weight: 600;
  color: var(--c-primary);
  margin-bottom: 6px;
  display: flex;
  gap: 8px;
}
.faq-q::before { content: 'Q'; color: #4facfe; font-weight: 700; }
.faq-a {
  color: var(--c-text-soft);
  font-size: 14px;
  padding-left: 22px;
  position: relative;
}
.faq-a::before {
  content: 'A';
  position: absolute;
  left: 0;
  top: 0;
  color: #00f2fe;
  font-weight: 700;
}

/* ===== 回到顶部 ===== */
.docs-foot-nav {
  display: flex;
  justify-content: space-between;
  margin: 40px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--c-border);
  font-size: 14px;
}
.docs-foot-nav a { color: var(--c-primary); }
.docs-foot-nav .prev::before { content: '← '; }
.docs-foot-nav .next::after { content: ' →'; }

/* ===== Footer（与首页同款） ===== */
.site-footer {
  background: var(--c-primary);
  color: rgba(255,255,255,0.7);
  padding: 22px 0;
  margin-top: 0;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
}
.footer-inner a { color: #4facfe; }
.footer-inner a:hover { color: #00f2fe; }
.footer-right a { color: rgba(255,255,255,0.45); }
.footer-right a:hover { color: rgba(255,255,255,0.75); }
@media (max-width: 640px) {
  .footer-inner { flex-direction: column; text-align: center; }
}

/* ===== 响应式 ===== */
@media (max-width: 960px) {
  .docs-body { grid-template-columns: 1fr; }
  .docs-side { position: static; max-height: none; }
}
@media (max-width: 600px) {
  .docs-hero { padding: 40px 16px 30px; }
  .docs-body { padding: 24px 16px 40px; gap: 24px; }
  .docs-content h1 { font-size: 1.4rem; }
  .docs-content h2 { font-size: 1.15rem; }
  .feature-grid { grid-template-columns: 1fr; }
}

/* status-pill 语义颜色 */
.status-pill.st-muted { color: var(--c-text-mute); border-color: #e5e7eb; }
.status-pill.st-info  { color: var(--c-info);    border-color: #bbdefb; background: var(--c-info-bg); }
.status-pill.st-warn  { color: var(--c-warn);    border-color: #ffe0b2; background: var(--c-warn-bg); }
.status-pill.st-ok    { color: var(--c-ok);      border-color: #c8e6c9; background: var(--c-ok-bg); }
.status-pill.st-err   { color: var(--c-err);     border-color: #ef9a9a; background: var(--c-err-bg); }