:root {
  --bg: #F3F6F4;
  --ink: #163022;
  --dim: #4A5C52;
  --bar: #1F3D2B;
  --head: #2D6A4F;
  --card: #FFFFFF;
  --line: #D5E0D8;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: auto; }

body {
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
}

svg { display: block; }
a { color: var(--head); text-decoration: none; }
a:hover { text-decoration: underline; }

.bar {
  background: var(--bar);
  color: #E8F5EE;
}

.bar-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
  gap: 20px;
}

.sign {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #E8F5EE;
  font-weight: 700;
}

.sign:hover { color: #fff; text-decoration: none; }
.sign svg { width: 30px; height: 30px; }

.menu {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  justify-content: flex-end;
}

.menu a {
  color: #CDE5D6;
  font-size: 13px;
}

.menu a:hover { color: #fff; }

.page {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 36px 0 48px;
}

.hero h1 {
  font-size: clamp(26px, 3.2vw, 38px);
  margin-bottom: 14px;
  line-height: 1.35;
}

.hero p {
  color: var(--dim);
  font-size: 17px;
  max-width: 48em;
  margin-bottom: 10px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 28px;
  margin-top: 28px;
  align-items: start;
}

.main > section { margin-bottom: 40px; }

.main h2 {
  font-size: 24px;
  margin-bottom: 10px;
}

.intro {
  color: var(--dim);
  margin-bottom: 14px;
}

.symptoms {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}

.sym {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 16px 14px 14px;
  min-height: 220px;
}

.sym svg { width: 36px; height: 36px; margin-bottom: 8px; }
.sym h3 { font-size: 17px; margin-bottom: 8px; }
.sym p { color: var(--dim); font-size: 14px; }

table.compat {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  font-size: 14px;
}

.compat th,
.compat td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.compat th { background: var(--head); color: #fff; }

.steps-h {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}

.st {
  background: var(--card);
  border-top: 4px solid var(--head);
  padding: 12px 10px;
}

.st span {
  display: block;
  color: var(--head);
  font-size: 12px;
  margin-bottom: 6px;
}

.st h3 { font-size: 15px; margin-bottom: 6px; }
.st p { color: var(--dim); font-size: 13px; }

.two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 16px;
}

.panel h3 { margin-bottom: 8px; }
.panel p { color: var(--dim); margin-bottom: 8px; }

.four {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.chip {
  background: var(--card);
  padding: 14px;
  border-left: 5px solid var(--head);
}

.chip svg { width: 32px; height: 32px; margin-bottom: 8px; }
.chip h3 { font-size: 16px; margin-bottom: 6px; }
.chip p { color: var(--dim); font-size: 14px; }

.recover {
  background: #E6F0EA;
  padding: 16px 18px;
}

.recover ol { padding-left: 20px; }
.recover li { margin-bottom: 8px; color: var(--dim); }

.bound p { color: var(--dim); margin-bottom: 10px; }

.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 12px 14px;
  margin-bottom: 10px;
}

.faq-item h3 { font-size: 16px; margin-bottom: 6px; }
.faq-item p { color: var(--dim); font-size: 14px; margin-bottom: 6px; }

.side {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 16px 14px;
  position: sticky;
  top: 16px;
}

.side h3 {
  font-size: 16px;
  margin-bottom: 10px;
  color: var(--bar);
}

.side li {
  list-style: none;
  padding: 8px 0;
  border-bottom: 1px dashed var(--line);
  color: var(--dim);
  font-size: 13px;
}

.side p { color: var(--dim); font-size: 13px; margin-top: 12px; }

.end {
  background: var(--bar);
  color: #D5E6DB;
  padding: 28px 0;
}

.end-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.end p { margin-bottom: 8px; font-size: 14px; }

@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
  .side { position: static; }
  .symptoms, .steps-h, .two { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .bar-inner { flex-direction: column; align-items: flex-start; padding: 12px 0; }
}