:root {
  --navy: #16305c;
  --navy-deep: #0e2042;
  --navy-soft: #e8eef8;
  --accent: #1f6fd1;
  --accent-ink: #0b4a99;
  --ink: #1c2330;
  --ink-sub: #4a5568;
  --ink-mute: #6b7585;
  --line: #d9dfe8;
  --line-soft: #edf1f6;
  --bg: #ffffff;
  --bg-alt: #f5f7fb;
  --ok: #1d7a46;
  --ok-bg: #e7f5ec;
  --run: #0b5cad;
  --run-bg: #e3effc;
  --warn: #8a5a00;
  --warn-bg: #fff5df;
  --ng: #b42318;
  --ng-bg: #fdecea;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgba(16, 32, 66, .06), 0 8px 24px rgba(16, 32, 66, .08);
  --font: "Segoe UI", "Yu Gothic UI", "Yu Gothic", "Meiryo", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Microsoft YaHei UI", "PingFang SC", system-ui, sans-serif;
  --mono: "Cascadia Mono", "Consolas", "BIZ UDGothic", ui-monospace, monospace;
  --wrap: 1160px;
  --header-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--bg);
  overflow-wrap: anywhere;
  line-break: strict;
}

:lang(en) body, body:lang(en) { line-height: 1.65; }

img { max-width: 100%; height: auto; display: block; }

a { color: var(--accent-ink); text-underline-offset: 3px; }
a:hover { color: var(--navy); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

h1, h2, h3 { line-height: 1.4; color: var(--navy-deep); margin: 0 0 .6em; font-weight: 700; letter-spacing: .01em; }
p { margin: 0 0 1em; }
b, strong { font-weight: 700; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 860px; }

.icon { width: 1.1em; height: 1.1em; fill: currentColor; flex: none; vertical-align: -.18em; }

.skip { position: absolute; left: -9999px; top: 0; background: var(--navy); color: #fff; padding: 8px 16px; z-index: 100; }
.skip:focus { left: 8px; top: 8px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  min-height: 44px; padding: 10px 22px;
  border: 1px solid transparent; border-radius: var(--radius-sm);
  font: inherit; font-weight: 700; line-height: 1.3; text-decoration: none; cursor: pointer;
  transition: background-color .15s, border-color .15s, color .15s;
}
.btn-sm { min-height: 38px; padding: 6px 16px; font-size: .92rem; }
.btn-lg { min-height: 52px; padding: 12px 28px; font-size: 1.05rem; }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-deep); color: #fff; }
.btn-ghost { background: #fff; color: var(--navy); border-color: var(--navy); }
.btn-ghost:hover { background: var(--navy-soft); color: var(--navy-deep); }
.btn-light { background: #fff; color: var(--navy); }
.btn-light:hover { background: var(--navy-soft); color: var(--navy-deep); }
.btn-text { background: none; border: 1px solid var(--line); color: var(--ink-sub); min-height: 36px; padding: 4px 12px; font-size: .88rem; font-weight: 600; }
.btn-text:hover { border-color: var(--navy); color: var(--navy); }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(1.4) blur(6px);
}
.header-inner { display: flex; align-items: center; gap: 24px; min-height: var(--header-h); }
.brand { display: inline-flex; flex-shrink: 0; white-space: nowrap; align-items: center; gap: 10px; color: var(--navy-deep); font-weight: 800; font-size: 1.2rem; text-decoration: none; letter-spacing: .02em; }
.brand:hover { color: var(--navy); }
.site-nav { display: flex; align-items: center; gap: 20px; margin-left: auto; }
.nav-links { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-links a { display: block; white-space: nowrap; padding: 8px 10px; color: var(--ink); text-decoration: none; font-size: .94rem; font-weight: 600; border-radius: var(--radius-sm); border-bottom: 2px solid transparent; }
.nav-links a:hover { background: var(--bg-alt); color: var(--navy); }
.nav-links a[aria-current="page"] { color: var(--navy); border-bottom-color: var(--navy); border-radius: 0; }
.lang-switch { display: flex; align-items: center; gap: 2px; color: var(--ink-mute); font-size: .86rem; }
.lang-switch .icon { margin-right: 4px; }
.lang-switch a { white-space: nowrap; padding: 4px 8px; color: var(--ink-sub); text-decoration: none; border-radius: 4px; border: 1px solid transparent; }
.lang-switch a:hover { background: var(--bg-alt); color: var(--navy); }
.lang-switch a[aria-current="true"] { color: var(--navy); font-weight: 700; border-color: var(--line); background: #fff; }
.nav-cta { white-space: nowrap; }
.menu-toggle { display: none; }

.hero { background: linear-gradient(180deg, #f3f6fb 0%, #fff 100%); border-bottom: 1px solid var(--line-soft); padding: 72px 0 80px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.eyebrow { display: inline-block; margin: 0 0 16px; padding: 2px 12px; border: 1px solid var(--navy); border-radius: 999px; color: var(--navy); font-size: .86rem; font-weight: 700; }
.hero-title { font-size: clamp(2rem, 4.2vw, 3.1rem); line-height: 1.3; margin-bottom: 24px; }
.hero-title span { display: block; }
.hero-title-accent { color: var(--accent-ink); }
.hero-lead { font-size: 1.08rem; color: var(--ink-sub); max-width: 34em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 16px; }
.hero-note { font-size: .88rem; color: var(--ink-mute); margin: 0; }

.mock { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; font-size: .9rem; }
.mock-bar { display: flex; align-items: center; gap: 6px; padding: 10px 14px; background: var(--navy); color: #fff; }
.mock-dot { width: 9px; height: 9px; border-radius: 50%; background: rgba(255, 255, 255, .45); }
.mock-title { margin-left: 8px; font-weight: 600; font-size: .84rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mock-run { margin-left: auto; padding: 2px 10px; border: 1px solid rgba(255, 255, 255, .6); border-radius: 4px; font-size: .8rem; font-weight: 700; white-space: nowrap; }
.mock-steps { list-style: none; margin: 0; padding: 12px; display: grid; gap: 8px; }
.mock-steps li { display: grid; grid-template-columns: 28px 1fr auto; align-items: center; gap: 10px; padding: 9px 12px; border: 1px solid var(--line); border-left-width: 4px; border-radius: var(--radius-sm); background: #fff; }
.mock-steps li.is-indent { margin-left: 28px; }
.mock-no { width: 24px; height: 24px; display: grid; place-items: center; border-radius: 50%; background: var(--bg-alt); color: var(--ink-sub); font-size: .78rem; font-weight: 700; }
.mock-text { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mock-state { font-size: .78rem; font-weight: 700; padding: 1px 8px; border-radius: 4px; border: 1px solid var(--line); color: var(--ink-mute); white-space: nowrap; }
.mock-steps li.is-done { border-left-color: var(--ok); }
.mock-steps li.is-done .mock-state { color: var(--ok); background: var(--ok-bg); border-color: transparent; }
.mock-steps li.is-running { border-left-color: var(--run); background: var(--run-bg); border-style: solid dashed solid solid; }
.mock-steps li.is-running .mock-state { color: #fff; background: var(--run); border-color: transparent; }

.section { padding: 88px 0; }
.section-tight { padding: 40px 0 88px; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.section-title { font-size: clamp(1.6rem, 3vw, 2.1rem); text-align: center; }
.section-title::after { content: ""; display: block; width: 40px; height: 3px; margin: 16px auto 0; background: var(--navy); border-radius: 2px; }
.section-lead { text-align: center; color: var(--ink-sub); max-width: 44em; margin: 0 auto 48px; }
.note { font-size: .88rem; color: var(--ink-mute); }

.cards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.card { position: relative; padding: 28px 24px 24px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.card h3 { font-size: 1.08rem; margin-bottom: .5em; }
.card p { font-size: .94rem; color: var(--ink-sub); margin: 0; }
.card-icon { width: 40px; height: 40px; padding: 8px; margin-bottom: 16px; fill: var(--navy); background: var(--navy-soft); border-radius: 8px; }
.badge { position: absolute; top: 16px; right: 16px; display: inline-flex; align-items: center; gap: 4px; padding: 1px 10px; border: 1px solid var(--warn); border-radius: 999px; background: var(--warn-bg); color: var(--warn); font-size: .76rem; font-weight: 700; line-height: 1.7; }

.steps { list-style: none; margin: 48px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; counter-reset: none; }
.steps li { padding: 28px 24px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.steps h3 { font-size: 1.12rem; }
.steps p { color: var(--ink-sub); font-size: .95rem; margin: 0; }
.step-no { display: inline-grid; place-items: center; width: 36px; height: 36px; margin: 0 12px 12px 0; border-radius: 50%; background: var(--navy); color: #fff; font-weight: 800; font-size: 1rem; vertical-align: middle; }

.func-table { margin: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.func-table > div { display: grid; grid-template-columns: 220px 1fr; border-top: 1px solid var(--line); }
.func-table > div:first-child { border-top: 0; }
.func-table dt { padding: 18px 24px; background: var(--bg-alt); font-weight: 700; color: var(--navy-deep); border-right: 1px solid var(--line); }
.func-table dd { margin: 0; padding: 18px 24px; color: var(--ink-sub); }

.shot { margin: 0 auto; max-width: 1080px; }
.shot a { display: block; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: #fff; }
.shot figcaption { margin-top: 14px; text-align: center; font-size: .9rem; color: var(--ink-mute); }

.spec { width: 100%; border-collapse: collapse; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.spec th, .spec td { padding: 14px 20px; border-top: 1px solid var(--line); text-align: left; vertical-align: top; }
.spec tr:first-child th, .spec tr:first-child td { border-top: 0; }
.spec tbody th { width: 220px; background: var(--bg-alt); color: var(--navy-deep); font-weight: 700; border-right: 1px solid var(--line); }
.spec thead th { background: var(--navy); color: #fff; font-weight: 700; }
.spec-compact td.num { width: 90px; font-family: var(--mono); font-weight: 700; text-align: center; border-right: 1px solid var(--line); }
#requirements .spec { max-width: 900px; margin: 0 auto; }
#requirements .note { text-align: center; margin-top: 16px; }

.section-download { background: var(--navy-soft); }
.download-card { max-width: 760px; margin: 0 auto; padding: 32px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.platform { display: flex; align-items: center; gap: 8px; margin: 0 0 16px; font-weight: 700; color: var(--navy-deep); }
.platform::before { content: ""; width: 18px; height: 18px; flex: none; background:
  linear-gradient(var(--accent), var(--accent)) 0 0 / 8px 8px no-repeat,
  linear-gradient(var(--accent), var(--accent)) 10px 0 / 8px 8px no-repeat,
  linear-gradient(var(--accent), var(--accent)) 0 10px / 8px 8px no-repeat,
  linear-gradient(var(--accent), var(--accent)) 10px 10px / 8px 8px no-repeat; }
.state { margin: 0; }
.state-loading { color: var(--ink-mute); display: flex; align-items: center; gap: 10px; }
.state-loading::before { content: ""; width: 18px; height: 18px; border: 3px solid var(--line); border-top-color: var(--navy); border-radius: 50%; animation: spin .9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .state-loading::before { animation: none; } html { scroll-behavior: auto; } }

.state-box { display: flex; gap: 14px; padding: 18px 20px; border: 1px solid var(--line); border-left-width: 5px; border-radius: var(--radius-sm); }
.state-box .icon { width: 26px; height: 26px; margin-top: 2px; }
.state-box h3 { font-size: 1.05rem; margin: 0 0 4px; }
.state-box p { margin: 0; color: var(--ink-sub); font-size: .94rem; }
.state-box .btn { margin-top: 12px; }
.state-pending { border-left-color: var(--warn); background: var(--warn-bg); }
.state-pending .icon, .state-pending h3 { color: var(--warn); }
.state-error { border-left-color: var(--ng); background: var(--ng-bg); }
.state-error .icon, .state-error h3 { color: var(--ng); }

.release-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-bottom: 18px; }
.release-version { margin: 0; font-size: 1.6rem; color: var(--navy-deep); }
.release-tag { display: inline-flex; align-items: center; gap: 4px; padding: 1px 10px; border-radius: 999px; background: var(--ok-bg); color: var(--ok); border: 1px solid var(--ok); font-size: .78rem; font-weight: 700; }
.release-meta { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; margin: 0 0 20px; font-size: .94rem; }
.release-meta dt { color: var(--ink-mute); }
.release-meta dd { margin: 0; color: var(--ink); }
.hash { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.hash code { font-family: var(--mono); font-size: .84rem; word-break: break-all; background: var(--bg-alt); padding: 2px 8px; border-radius: 4px; }
.release-notes { margin: 0 0 24px; padding: 16px 20px; background: var(--bg-alt); border-radius: var(--radius-sm); }
.release-notes h3 { font-size: .98rem; margin: 0 0 6px; }
.release-notes p { margin: 0; white-space: pre-line; font-size: .94rem; color: var(--ink-sub); }
.release-actions .btn { width: 100%; }

.download-help { max-width: 760px; margin: 24px auto 0; }
.help { margin-top: 12px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); }
.help > summary, .faq summary { cursor: pointer; list-style: none; position: relative; padding: 14px 48px 14px 20px; font-weight: 700; color: var(--navy-deep); }
.help > summary::-webkit-details-marker, .faq summary::-webkit-details-marker { display: none; }
.help > summary::after, .faq summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); width: 24px; height: 24px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; font-weight: 400; color: var(--navy); line-height: 1; }
.help[open] > summary::after, .faq details[open] summary::after { content: "−"; }
.help > :not(summary) { margin-left: 20px; margin-right: 20px; }
.help > :last-child { margin-bottom: 16px; }
.help ol { padding-left: 1.4em; }
.link-arrow { display: inline-block; margin-top: 16px; font-weight: 700; }
.link-arrow::after { content: " →"; }

.code { margin: 0 0 1em; padding: 14px 16px; background: #0f1b33; color: #e6edf7; border-radius: var(--radius-sm); font-family: var(--mono); font-size: .86rem; line-height: 1.6; overflow-x: auto; white-space: pre; }
.code code { font-family: inherit; }

.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { padding-left: 52px; }
.faq summary::before { content: "Q"; position: absolute; left: 12px; top: 14px; width: 26px; height: 26px; display: grid; place-items: center; background: var(--navy); color: #fff; border-radius: 4px; font-size: .84rem; font-weight: 800; line-height: 1; }
.faq details p { position: relative; margin: 0; padding: 0 20px 20px 52px; color: var(--ink-sub); }
.faq details p::before { content: "A"; position: absolute; left: 12px; top: 0; width: 26px; height: 26px; display: grid; place-items: center; border: 1px solid var(--navy); color: var(--navy); border-radius: 4px; font-size: .84rem; font-weight: 800; line-height: 1; }

.cta-band { background: var(--navy); color: #fff; padding: 56px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; }
.cta-band h2 { color: #fff; font-size: clamp(1.3rem, 2.4vw, 1.7rem); margin-bottom: .3em; }
.cta-band p { margin: 0; color: rgba(255, 255, 255, .85); }

.page-head { padding: 56px 0 8px; background: linear-gradient(180deg, #f3f6fb 0%, #fff 100%); }
.page-head h1 { font-size: clamp(1.8rem, 3.4vw, 2.4rem); text-align: center; }
.page-head .section-lead { margin-bottom: 0; }

.toc { padding: 20px 24px; margin-bottom: 40px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg-alt); }
.toc h2 { font-size: 1rem; margin-bottom: 8px; }
.toc ol { margin: 0; padding-left: 1.5em; columns: 2; column-gap: 32px; }
.toc li { break-inside: avoid; }

.guide-steps { list-style: none; margin: 0; padding: 0; }
.guide-steps > li { padding: 32px 0; border-top: 1px solid var(--line); }
.guide-steps > li:first-child { border-top: 0; padding-top: 0; }
.guide-steps h2 { display: flex; align-items: center; font-size: 1.35rem; }
.guide-steps h2 .step-no { margin-bottom: 0; }
.sub-steps { padding-left: 1.4em; }
.tip { display: flex; gap: 10px; padding: 12px 16px; border: 1px solid var(--warn); border-left-width: 5px; border-radius: var(--radius-sm); background: var(--warn-bg); color: #4d3500; font-size: .94rem; }
.tip .icon { color: var(--warn); margin-top: .3em; }
.guide-block { margin-top: 48px; }
.guide-block h2 { font-size: 1.35rem; padding-bottom: 8px; border-bottom: 2px solid var(--navy); }

.prose ul { padding-left: 1.4em; }
.prose li { margin-bottom: .4em; }
.check-list { list-style: none; padding: 0 !important; }
.check-list li { position: relative; padding-left: 30px; margin-bottom: .6em; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: .15em; width: 20px; height: 20px; display: grid; place-items: center; border-radius: 50%; background: var(--ok); color: #fff; font-size: .72rem; font-weight: 800; line-height: 1; }
.send-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.send-box { padding: 18px 20px; border: 1px solid var(--line); border-top-width: 4px; border-radius: var(--radius-sm); background: #fff; }
.send-box h3 { display: flex; align-items: center; gap: 8px; font-size: 1.02rem; }
.send-box ul { margin: 0; padding-left: 1.3em; }
.send-yes { border-top-color: var(--accent); }
.send-yes h3 { color: var(--accent-ink); }
.send-no { border-top-color: var(--ink-mute); border-style: dashed; border-top-style: solid; }
.send-no h3 { color: var(--ink-sub); }

.site-footer { background: var(--navy-deep); color: rgba(255, 255, 255, .82); padding: 56px 0 28px; font-size: .92rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.brand-footer { color: #fff; }
.brand-footer:hover { color: #fff; }
.brand-footer img { background: #fff; border-radius: 6px; padding: 2px; }
.footer-tagline { margin-top: 12px; }
.footer-heading { color: #fff; font-size: .95rem; margin-bottom: 10px; }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 6px; }
.footer-links a { color: rgba(255, 255, 255, .82); text-decoration: none; }
.footer-links a:hover { color: #fff; text-decoration: underline; }
.footer-bottom { margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .16); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 32px; }
.footer-bottom p { margin: 0; }
.footer-note { font-size: .78rem; color: rgba(255, 255, 255, .6); max-width: 46em; }

@media (max-width: 1080px) {
  .nav-links a { padding: 8px 6px; font-size: .9rem; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 1240px) {
  .menu-toggle {
    display: inline-flex; align-items: center; gap: 8px; margin-left: auto;
    min-height: 40px; padding: 6px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm);
    background: #fff; color: var(--navy); font: inherit; font-weight: 700; font-size: .9rem; cursor: pointer;
  }
  .menu-bars, .menu-bars::before, .menu-bars::after { display: block; width: 16px; height: 2px; background: currentColor; border-radius: 1px; position: relative; }
  .menu-bars::before, .menu-bars::after { content: ""; position: absolute; left: 0; }
  .menu-bars::before { top: -5px; }
  .menu-bars::after { top: 5px; }
  .site-nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; gap: 12px; padding: 12px 24px 20px; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 12px 20px rgba(16, 32, 66, .08); }
  .site-nav.is-open { display: flex; }
  .nav-links { flex-direction: column; }
  .nav-links a { padding: 12px 8px; font-size: 1rem; border-bottom: 1px solid var(--line-soft); border-radius: 0; }
  .nav-links a[aria-current="page"] { border-bottom-color: var(--line-soft); border-left: 3px solid var(--navy); }
  .lang-switch { padding: 4px 0; }
  .lang-switch a { padding: 8px 12px; }
  .nav-cta { width: 100%; }
  .hero { padding: 48px 0 56px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid > :first-child { grid-column: 1 / -1; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  .wrap { padding: 0 16px; }
  .section { padding: 60px 0; }
  .section-lead { margin-bottom: 32px; }
  .cards { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .mock-steps li { grid-template-columns: 24px 1fr; }
  .mock-state { grid-column: 2; justify-self: start; }
  .mock-steps li.is-indent { margin-left: 16px; }
  .func-table > div { grid-template-columns: 1fr; }
  .func-table dt { border-right: 0; border-bottom: 1px solid var(--line); padding: 12px 16px; }
  .func-table dd { padding: 12px 16px; }
  .spec tbody th, .spec tbody td { display: block; width: auto; border-right: 0; }
  .spec tbody th { padding: 10px 16px 4px; border-top: 1px solid var(--line); }
  .spec tbody td { padding: 4px 16px 12px; border-top: 0; }
  .spec-compact tbody tr { display: grid; grid-template-columns: 56px 1fr; }
  .spec-compact tbody td { display: block; padding: 10px 12px; border-top: 1px solid var(--line); }
  .spec-compact td.num { width: auto; }
  .download-card { padding: 20px; }
  .release-meta { grid-template-columns: 1fr; gap: 0; }
  .release-meta dd { margin-bottom: 8px; }
  .toc ol { columns: 1; }
  .send-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
}
.price-notice { display: flex; flex-wrap: wrap; gap: 6px 12px; align-items: baseline; max-width: 860px; margin: 0 auto 32px; padding: 14px 18px; border: 2px dashed var(--warn); border-radius: var(--radius-sm); background: var(--warn-bg); color: var(--ink); font-size: .95rem; }
.price-notice strong { color: var(--warn); }
.price-notice strong::before { content: "⚠ "; }
.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; align-items: stretch; }
.plan { display: flex; flex-direction: column; padding: 24px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.plan-featured { border: 2px solid var(--navy); }
.plan h3 { font-size: 1.2rem; margin: 12px 0 8px; }
.price-flag { align-self: flex-start; margin: 0; padding: 2px 10px; border: 1px dashed var(--warn); border-radius: 999px; background: var(--warn-bg); color: var(--warn); font-size: .78rem; font-weight: 700; }
.price-flag::before { content: "⚠ "; }
.plan-price { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; margin: 0 0 12px; }
.plan-amount { font-size: 2rem; font-weight: 800; color: var(--navy); line-height: 1.2; text-decoration: underline dashed var(--warn) 2px; text-underline-offset: 6px; }
.plan-unit { font-size: .88rem; color: var(--ink-sub); }
.plan-desc { color: var(--ink-sub); font-size: .94rem; }
@media (max-width: 860px) { .plans { grid-template-columns: 1fr; } }