@charset "UTF-8";
:root {
  color-scheme: light;
  --paper: #eef3f0;
  --sheet: #ffffff;
  --ink: #13201b;
  --ink_sub: #56655e;
  --rule: #d3ddd8;
  --line: rgba(211, 221, 216, .55);
  --green: #11694f;
  --green_soft: #ddebe5;
  --marker: #f6d55c;
  --toc_bg: rgba(255, 255, 255, .94);
  --shadow: 0 0 0 1px #d3ddd8, 0 8px 24px -12px rgba(19, 32, 27, .18);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --paper: #0e1412;
    --sheet: #151d1a;
    --ink: #e4ece8;
    --ink_sub: #9aaba3;
    --rule: #26322d;
    --line: rgba(38, 50, 45, .7);
    --green: #5cc9a0;
    --green_soft: #1b2b25;
    --marker: #e9c64a;
    --toc_bg: rgba(21, 29, 26, .94);
    --shadow: 0 0 0 1px #26322d, 0 8px 24px -12px rgba(0, 0, 0, .6);
  }
}
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background-color: var(--paper);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic UI", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: 0.02em;
}

a {
  color: var(--green);
  font-weight: 700;
  text-underline-offset: 3px;
}

p {
  margin: 0 0 10px;
}

.g_wrap {
  width: min(100%, 1180px);
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.g_back {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--green);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.g_hero {
  padding: 24px 0 8px;
}

.g_brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0 0;
  font-size: 16px;
  font-weight: 700;
}

.g_eyebrow {
  margin: 22px 0 6px;
  color: var(--green);
  font-family: "Spline Sans Mono", ui-monospace, monospace;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3em;
}

.g_title {
  display: inline;
  margin: 0;
  background: linear-gradient(transparent 62%, var(--marker) 62%, var(--marker) 92%, transparent 92%);
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  font-size: clamp(30px, 6.4vw, 48px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.04em;
}

.g_lead {
  max-width: 740px;
  margin: 18px 0 8px;
  color: var(--ink_sub);
}

.g_layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  margin-top: 28px;
}

.g_toc {
  position: sticky;
  top: 16px;
  z-index: 5;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  padding: 16px 10px;
  border-radius: 14px;
  background-color: var(--toc_bg);
  box-shadow: var(--shadow);
  scrollbar-width: none;
}
.g_toc::-webkit-scrollbar {
  display: none;
}

.g_toc_head {
  margin: 0 0 6px 10px;
  color: var(--green);
  font-family: "Spline Sans Mono", ui-monospace, monospace;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3em;
}

.g_toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: toc;
}

.g_toc li {
  margin: 0;
  counter-increment: toc;
}

.g_toc li + li {
  margin-top: 2px;
}

.g_toc a {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 38px;
  padding: 4px 10px;
  border-radius: 8px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color 0.2s, color 0.2s;
}
.g_toc a::before {
  content: counter(toc, decimal-leading-zero);
  flex-shrink: 0;
  color: var(--ink_sub);
  font-family: "Spline Sans Mono", ui-monospace, monospace;
  font-size: 12px;
}
.g_toc a:hover {
  background-color: var(--green_soft);
}
.g_toc a.is_now {
  background: var(--green);
  color: var(--sheet);
}
.g_toc a.is_now::before {
  color: var(--sheet);
}

.g_main {
  min-width: 0;
}

.g_sec {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 36px;
  align-items: start;
  margin-top: 22px;
  padding: 36px clamp(20px, 4vw, 48px);
  border-radius: 14px;
  background-color: var(--sheet);
  box-shadow: var(--shadow);
  scroll-margin-top: 20px;
}
.g_sec h2 {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--green);
  font-size: clamp(21px, 4.4vw, 27px);
  font-weight: 700;
  line-height: 1.5;
}

.g_sec_wide {
  grid-template-columns: minmax(0, 1fr);
}

.js_reveal .g_sec {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.js_reveal .g_sec.is_in {
  opacity: 1;
  transform: none;
}
.js_reveal .g_sec:target {
  opacity: 1;
  transform: none;
  transition: none;
}

.g_num {
  margin: 0;
  color: var(--green);
  font-family: "Spline Sans Mono", ui-monospace, monospace;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.2em;
}

.g_steps {
  margin: 4px 0 16px;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.g_steps li {
  position: relative;
  margin: 0;
  padding: 12px 0 12px 46px;
  border-bottom: 1px dashed var(--rule);
  counter-increment: step;
}
.g_steps li::before {
  content: counter(step);
  position: absolute;
  top: 12px;
  left: 0;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--green);
  color: var(--sheet);
  font-family: "Spline Sans Mono", ui-monospace, monospace;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
}

.g_list {
  margin: 4px 0 16px;
  padding-left: 1.3em;
}
.g_list li + li {
  margin-top: 8px;
}
.g_list li::marker {
  color: var(--green);
}

.g_tip {
  margin: 8px 0 0;
  padding: 12px 16px;
  border-left: 4px solid var(--marker);
  border-radius: 0 8px 8px 0;
  background: var(--green_soft);
  font-size: 15px;
}

.g_fig {
  position: sticky;
  top: 20px;
  margin: 0;
}
.g_fig img {
  display: block;
  width: 100%;
  height: auto;
  border: 5px solid #13201b;
  border-radius: 22px;
  background-color: var(--paper);
  box-shadow: 0 18px 36px -18px rgba(19, 32, 27, 0.45);
}
.g_fig figcaption {
  margin-top: 10px;
  color: var(--ink_sub);
  font-size: 14px;
  text-align: center;
}

.g_fig_pair {
  display: grid;
  gap: 14px;
  position: static;
}

.g_faq details {
  border-bottom: 1px dashed var(--rule);
}
.g_faq details[open] summary::after {
  transform: rotate(45deg);
}

.g_faq summary {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 12px 40px 12px 0;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}
.g_faq summary::-webkit-details-marker {
  display: none;
}
.g_faq summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 6px;
  margin-top: -14px;
  color: var(--green);
  font-size: 24px;
  line-height: 28px;
  transition: transform 0.2s;
}

.g_faq details p {
  padding: 0 0 14px;
}

.g_foot {
  margin-top: 40px;
  color: var(--ink_sub);
  font-size: 14px;
  text-align: center;
}

.g_open {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 36px;
  border-radius: 999px;
  background: var(--green);
  color: var(--sheet);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.g_links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 20px;
  margin: 22px 0 10px;
}
.g_links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

@media (prefers-reduced-motion: reduce) {
  .js_reveal .g_sec {
    opacity: 1;
    transform: none;
    transition: none;
  }
}
@media (max-width: 900px) {
  .g_layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    margin-top: 20px;
  }
  .g_toc {
    top: 0;
    max-height: none;
    margin: 0 -16px;
    padding: 8px 16px;
    overflow-x: auto;
    overflow-y: hidden;
    border-radius: 0;
    box-shadow: 0 1px 0 var(--rule);
    scrollbar-width: none;
  }
  .g_toc::-webkit-scrollbar {
    display: none;
  }
  .g_toc_head {
    display: none;
  }
  .g_toc ol {
    display: flex;
    gap: 6px;
    width: max-content;
  }
  .g_toc li {
    flex-shrink: 0;
  }
  .g_toc li + li {
    margin-top: 0;
  }
  .g_toc a {
    min-height: 40px;
    padding: 4px 14px;
    border: 1px solid var(--rule);
    border-radius: 999px;
  }
  .g_toc a.is_now {
    border-color: var(--green);
  }
  .g_sec {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    scroll-margin-top: 72px;
  }
  .g_fig {
    position: static;
    width: min(100%, 300px);
    margin: 0 auto;
  }
  .g_fig_pair {
    width: min(100%, 560px);
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .g_fig_pair figcaption {
    grid-column: 1/-1;
  }
}
@media (max-width: 640px) {
  .g_sec {
    padding: 28px 18px;
  }
  .g_fig img {
    border-width: 4px;
    border-radius: 16px;
  }
}