/* Shared styles for haoduoniutech.com
   Plain CSS, no framework, no build step. */

:root {
  --paper: #f7f4ee;
  --paper-edge: #efe9df;
  --ink: #1c1a17;
  --ink-soft: #5a544b;
  --rule: #d9d2c5;
  --bp-red: #7a1f1f;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.page {
  max-width: 680px;
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}

.site-header {
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1.25rem;
  margin-bottom: 2.5rem;
}

.site-name {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin: 0;
}

.site-name a {
  color: inherit;
  text-decoration: none;
}

.site-nav {
  margin-top: 0.6rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  margin-right: 1.25rem;
}

.site-nav a:hover {
  color: var(--ink);
  text-decoration: underline;
}

h1 {
  font-size: 1.9rem;
  font-weight: 600;
  line-height: 1.3;
  margin: 0 0 1.25rem;
}

h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 2.25rem 0 0.75rem;
}

p {
  margin: 0 0 1.1rem;
}

a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 2px;
}

ul {
  margin: 0 0 1.1rem;
  padding-left: 1.25rem;
}

li {
  margin-bottom: 0.35rem;
}

.lead {
  font-size: 1.05rem;
}

.muted {
  color: var(--ink-soft);
}

.legal-name {
  font-weight: 600;
}

.zh {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Noto Sans CJK SC", sans-serif;
}

.bp-section {
  border-top: 1px solid var(--rule);
  margin-top: 2.5rem;
  padding-top: 2rem;
}

.bp-numbers {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  color: var(--bp-red);
  font-weight: 600;
}

.note-line {
  border-top: 1px solid var(--rule);
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.site-footer {
  border-top: 1px solid var(--rule);
  margin-top: 3rem;
  padding-top: 1.25rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.site-footer .legal-name {
  color: var(--ink);
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.contact-list li {
  margin-bottom: 0.6rem;
}

.contact-list .label {
  display: inline-block;
  width: 7rem;
  color: var(--ink-soft);
}

.meta {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-top: 0.25rem;
}

@media (max-width: 540px) {
  .page {
    padding: 2.5rem 1.25rem 4rem;
  }
  h1 {
    font-size: 1.6rem;
  }
  .contact-list .label {
    display: block;
    width: auto;
  }
}