:root {
  --m-rose: #9f1239;
  --m-blush: #ffe4e6;
  --m-paper: #fff1f2;
  --m-wine: #4c0519;
  --m-pink: #fb7185;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

body.m-body {
  margin: 0;
  background: var(--m-paper);
  color: var(--m-wine);
  font: 16px/1.7 "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.m-alert-head {
  background: var(--m-wine);
  color: var(--m-blush);
}

.m-alert-head-inner {
  width: min(980px, calc(100% - 28px));
  margin: 0 auto;
  padding: 12px 0;
}

.m-brand {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}

.m-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin-top: 8px;
}

.m-nav a {
  color: var(--m-pink);
  text-decoration: none;
  font-size: 12px;
  border: 1px solid #9f1239;
  padding: 2px 8px;
}

.m-nav a:hover,
.m-nav a:focus {
  color: #fff;
  border-color: var(--m-pink);
}

.m-doc {
  width: min(980px, calc(100% - 28px));
  margin: 20px auto 56px;
}

.m-hero {
  background: var(--m-blush);
  border-left: 10px solid var(--m-rose);
  padding: 22px 22px 24px;
  margin-bottom: 28px;
}

.m-hero .m-tag {
  display: inline-block;
  background: var(--m-rose);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  margin-bottom: 10px;
}

.m-hero h1 {
  margin: 0 0 10px;
  font-size: 1.7rem;
  line-height: 1.35;
}

.m-hero p {
  margin: 0;
}

.m-sec {
  margin-bottom: 34px;
}

.m-sec h2 {
  margin: 0 0 12px;
  font-size: 1.3rem;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--m-rose);
}

.m-sec > p {
  margin: 0 0 12px;
}

.m-phenom {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.m-phenom-card {
  background: #fff;
  border-left: 8px solid var(--m-rose);
  padding: 14px 16px;
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 10px;
}

.m-phenom-card.m-alt {
  border-left-color: var(--m-pink);
}

.m-phenom-card.m-dim {
  border-left-color: var(--m-wine);
}

.m-phenom-card svg {
  width: 28px;
  height: 28px;
  color: var(--m-rose);
}

.m-phenom-card h3 {
  margin: 0 0 6px;
  font-size: 1.02rem;
}

.m-phenom-card p {
  margin: 0;
  font-size: 0.94rem;
}

.m-zebra {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
}

.m-zebra th {
  background: var(--m-rose);
  color: #fff;
  text-align: left;
  padding: 10px 12px;
}

.m-zebra td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--m-blush);
  vertical-align: top;
}

.m-zebra tr:nth-child(odd) td {
  background: #fff;
}

.m-zebra tr:nth-child(even) td {
  background: var(--m-blush);
}

.m-fix {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.m-fix-box {
  background: #fff;
  padding: 16px 16px 16px 72px;
  position: relative;
  border: 1px solid var(--m-pink);
}

.m-fix-box .m-num {
  position: absolute;
  left: 12px;
  top: 12px;
  width: 44px;
  height: 44px;
  background: var(--m-rose);
  color: #fff;
  font-weight: 800;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.m-fix-box h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.m-fix-box p {
  margin: 0;
  font-size: 0.94rem;
}

.m-back-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.m-back-pair article {
  background: #fff;
  padding: 16px;
}

.m-back-pair svg {
  width: 26px;
  height: 26px;
  color: var(--m-rose);
}

.m-back-pair h3 {
  margin: 8px 0 6px;
  font-size: 1.02rem;
}

.m-back-pair p {
  margin: 0;
  font-size: 0.94rem;
}

.m-habit {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.m-habit article {
  background: var(--m-blush);
  padding: 14px;
}

.m-habit h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.m-habit p {
  margin: 0;
  font-size: 0.9rem;
}

.m-habit svg {
  width: 22px;
  height: 22px;
  color: var(--m-wine);
}

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

.m-faq li {
  background: #fff;
  padding: 14px 16px;
  margin-bottom: 8px;
  border-top: 3px solid var(--m-rose);
}

.m-faq h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.m-faq p {
  margin: 0;
  font-size: 0.94rem;
}

.m-foot {
  background: var(--m-wine);
  color: var(--m-blush);
  padding: 24px 16px;
  font-size: 0.88rem;
}

.m-foot-inner {
  width: min(980px, calc(100% - 8px));
  margin: 0 auto;
}

.m-foot p {
  margin: 0 0 8px;
}

@media (max-width: 720px) {
  .m-back-pair,
  .m-habit {
    grid-template-columns: 1fr;
  }

  .m-phenom-card {
    grid-template-columns: 1fr;
  }
}