:root {
  --green: #12b767;
  --green-deep: #079653;
  --text: #171c23;
  --muted: #56616d;
  --line: #dfece7;
  --soft: #f2fbf7;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--text);
  font-family: "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
  background: #f7fbf9;
}
a { color: inherit; text-decoration: none; }
.wrap { width: min(100% - 44px, 960px); margin: 0 auto; }
header { border-bottom: 1px solid #e2ece8; background: #fff; }
.top {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 14px; font-size: 26px; font-weight: 850; }
.brand img { width: 42px; height: 42px; }
.links { display: flex; flex-wrap: wrap; gap: 18px; color: var(--green-deep); font-weight: 750; }
main { padding: 56px 0 72px; }
article {
  padding: 38px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(27, 74, 54, 0.07);
}
.visual-guide { padding: 0; overflow: hidden; }
.eyebrow { margin: 0 0 12px; color: var(--green-deep); font-size: 14px; font-weight: 850; }
h1 { max-width: 760px; margin: 0 0 18px; font-size: 38px; line-height: 1.22; }
h2 { margin: 34px 0 14px; font-size: 23px; line-height: 1.35; }
h3 { margin: 0 0 8px; font-size: 18px; }
p, li, td, th { color: var(--muted); font-size: 16px; line-height: 1.8; }
p { margin: 0 0 14px; }
ul, ol { margin: 0; padding-left: 24px; }
.lead { max-width: 780px; font-size: 18px; }
.scene-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}
.scene {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--soft);
}
.scene p { margin: 0; font-size: 15px; }
.note {
  margin-top: 18px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f7fbf9;
}
.guide-table {
  width: 100%;
  margin-top: 16px;
  border-collapse: collapse;
}
.guide-table th,
.guide-table td {
  padding: 13px 14px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.guide-table th { color: var(--text); background: var(--soft); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--green-deep);
  border-radius: 10px;
  color: #fff;
  background: var(--green-deep);
  font-weight: 800;
}
.button-secondary { color: var(--green-deep); background: #fff; }
.guide-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, .92fr);
  gap: 44px;
  align-items: center;
  padding: 48px 42px;
  background:
    radial-gradient(circle at 85% 18%, rgba(18, 183, 103, .16), transparent 34%),
    linear-gradient(135deg, #fff 0%, #f2fbf7 100%);
}
.guide-hero-copy h1 { margin-bottom: 18px; }
.guide-hero-copy .lead { max-width: 620px; }
.guide-hero-visual {
  min-height: 338px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 28px;
  border: 1px solid rgba(18, 183, 103, .2);
  border-radius: 28px;
  background: rgba(255, 255, 255, .86);
  box-shadow: 0 22px 44px rgba(22, 99, 65, .1);
}
.visual-stack-card {
  width: min(100%, 260px);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 15px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--text);
  background: #fff;
  font-weight: 800;
}
.visual-stack-trigger {
  color: #fff;
  border-color: var(--green);
  background: linear-gradient(135deg, var(--green), var(--green-deep));
}
.visual-stack-card img { width: 28px; height: 28px; }
.visual-stack-trigger img { filter: brightness(0) invert(1); }
.visual-stack-arrow { padding: 6px 0; color: var(--green-deep); font-size: 21px; font-weight: 900; }
.guide-section { padding: 46px 42px 0; }
.guide-section:last-child { padding-bottom: 48px; }
.guide-section-soft {
  margin-top: 46px;
  padding-bottom: 46px;
  background: var(--soft);
}
.section-heading { max-width: 720px; margin-bottom: 22px; }
.section-heading h2 { margin: 0 0 8px; font-size: 27px; }
.section-heading > p:last-child { margin-bottom: 0; }
.visual-scene-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.visual-card {
  position: relative;
  min-height: 190px;
  padding: 54px 20px 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
}
.visual-card::after {
  position: absolute;
  right: -18px;
  bottom: -34px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: rgba(18, 183, 103, .08);
  content: "";
}
.visual-number {
  position: absolute;
  top: 18px;
  left: 20px;
  color: var(--green);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: .08em;
}
.visual-card p { position: relative; z-index: 1; margin: 0; font-size: 15px; line-height: 1.65; }
.trigger-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.trigger-card {
  padding: 20px 16px;
  border: 1px solid rgba(18, 183, 103, .18);
  border-radius: 16px;
  background: #fff;
  text-align: center;
}
.trigger-icon {
  width: 50px;
  height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  border-radius: 14px;
  color: var(--green-deep);
  background: #e7f8ef;
}
.trigger-icon img { width: 27px; height: 27px; }
.trigger-key { font-size: 24px; }
.trigger-card h3 { font-size: 17px; }
.trigger-card p { margin: 0; font-size: 14px; line-height: 1.55; }
.helper-strip {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 18px;
  padding: 14px 18px;
  border: 1px dashed rgba(7, 150, 83, .34);
  border-radius: 14px;
  background: rgba(255, 255, 255, .72);
}
.helper-strip img { width: 28px; height: 28px; }
.helper-strip p { margin: 0; font-size: 15px; line-height: 1.6; }
.helper-strip strong { color: var(--text); }
.protection-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 14px;
  align-items: center;
}
.flow-step {
  position: relative;
  min-height: 210px;
  padding: 48px 18px 20px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
  text-align: center;
}
.flow-step > span {
  position: absolute;
  top: 14px;
  left: 16px;
  width: 25px;
  height: 25px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  background: var(--green);
  font-size: 13px;
  font-weight: 900;
}
.flow-step img { width: 40px; height: 40px; margin-bottom: 14px; }
.flow-step p { margin: 0; font-size: 14px; line-height: 1.55; }
.flow-arrow { color: var(--green); font-size: 25px; font-weight: 900; }
.compare-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.compare-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px;
  border: 1px solid rgba(18, 183, 103, .18);
  border-radius: 17px;
  background: #fff;
}
.compare-card > img { width: 42px; height: 42px; flex: 0 0 auto; }
.compare-card h3 { margin-bottom: 6px; }
.compare-card p { margin: 0; font-size: 15px; line-height: 1.65; }
.prepare-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  list-style: none;
  counter-reset: prepare;
}
.prepare-steps li {
  position: relative;
  min-height: 138px;
  padding: 46px 18px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
  counter-increment: prepare;
}
.prepare-steps li::before {
  position: absolute;
  top: 14px;
  left: 18px;
  color: var(--green);
  content: "0" counter(prepare);
  font-size: 13px;
  font-weight: 900;
}
.prepare-steps strong { display: block; margin-bottom: 6px; color: var(--text); }
.prepare-steps span { display: block; font-size: 14px; line-height: 1.6; }
.note-grid { display: grid; gap: 10px; margin-top: 22px; }
.note-grid details {
  padding: 0 17px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #f7fbf9;
}
.note-grid summary {
  padding: 15px 0;
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
}
.note-grid details p { margin: -2px 0 14px; font-size: 15px; line-height: 1.65; }
.actions-center { justify-content: center; }
.site-footer { padding: 28px 0 32px; color: #6d7781; background: #fff; border-top: 1px solid #e5f0eb; font-size: 13px; }
.site-footer-inner { width: min(100% - 112px, 1480px); margin: 0 auto; display: flex; align-items: center; justify-content: center; gap: 24px; flex-wrap: wrap; }
.site-footer-inner a:hover, .links a:hover { color: var(--green); text-decoration: underline; }
.site-footer-inner span + span::before { content: ""; width: 1px; height: 14px; display: inline-block; margin-right: 26px; background: #d8e5df; vertical-align: -2px; }
footer { padding: 26px 0; color: #7a858f; text-align: center; font-size: 13px; }
footer a:hover, .links a:hover { text-decoration: underline; }
.beian-police-link { display: inline-flex; align-items: center; gap: 4px; vertical-align: text-bottom; }
.beian-police-icon { width: 16px; height: 16px; flex: 0 0 auto; }

@media (max-width: 680px) {
  .top { align-items: flex-start; flex-direction: column; padding: 14px 0; }
  main { padding: 34px 0 52px; }
  article { padding: 24px; }
  h1 { font-size: 31px; }
  .scene-grid { grid-template-columns: 1fr; }
  .guide-table { display: block; overflow-x: auto; }
  .button { width: 100%; }
  .visual-guide { padding: 0; }
  .guide-hero { grid-template-columns: 1fr; gap: 30px; padding: 34px 24px; }
  .guide-hero-visual { min-height: 300px; padding: 22px; }
  .guide-section { padding: 36px 24px 0; }
  .guide-section:last-child { padding-bottom: 38px; }
  .guide-section-soft { margin-top: 36px; padding-bottom: 36px; }
  .section-heading h2 { font-size: 24px; }
  .visual-scene-grid,
  .compare-grid,
  .prepare-steps { grid-template-columns: 1fr; }
  .visual-card { min-height: 160px; }
  .trigger-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .protection-flow { grid-template-columns: 1fr; }
  .flow-step { min-height: 180px; }
  .flow-arrow { transform: rotate(90deg); text-align: center; }
  .helper-strip { align-items: flex-start; }
  .site-footer-inner { width: min(100% - 44px, 980px); gap: 12px; }
  .site-footer-inner span + span::before { display: none; }
}

@media (max-width: 420px) {
  .trigger-grid { grid-template-columns: 1fr; }
}
