:root {
  --ink: #18212B;
  --ink-2: #1E2833;
  --ink-3: #2A3542;
  --ink-line: #35414E;
  --on-ink: #EEF1F3;
  --on-ink-muted: #A7B2BC;
  --paper: #F7F5F1;
  --surface: #FFFFFF;
  --line: #E4E1DB;
  --line-strong: #CFCAC2;
  --text: #1B2128;
  --muted: #5A626B;
  --aurora: #8FD0B9;
  --aurora-deep: #2E7D69;
  --aurora-tint: #E5F1EC;
  --display: "Figtree", system-ui, sans-serif;
  --body: "Source Sans 3", "Source Sans Pro", system-ui, sans-serif;
  --mono: "Figtree", system-ui, sans-serif;
  --wrap: 1200px;
  --gutter: 48px;
}
*, *::before, *::after { box-sizing: border-box; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--body);
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--aurora-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: #235F50; }
img { max-width: 100%; display: block; }
h1, h2, h3, h4, p { margin: 0; }
[hidden] { display: none !important; }
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { display: inline-block; width: 1em; height: 1em; flex: none; fill: currentColor; vertical-align: -.125em; }
.wrap { width: 100%; max-width: calc(var(--wrap) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }
.skip-link { position: absolute; left: 16px; top: -100px; z-index: 20; padding: 10px 16px; border-radius: 8px; background: var(--aurora); color: var(--ink) !important; font-weight: 600; }
.skip-link:focus { top: 16px; }

.eyebrow { font-family: var(--mono); font-size: 13px; letter-spacing: .01em; color: var(--muted); font-weight: 600; }
.display-xl { font-family: var(--display); font-weight: 400; font-size: 64px; line-height: 1.04; letter-spacing: -.025em; }
.display-l { font-family: var(--display); font-weight: 500; font-size: 48px; line-height: 1.08; letter-spacing: -.02em; }
.display-m { font-family: var(--display); font-weight: 600; font-size: 30px; line-height: 1.15; letter-spacing: -.01em; }
.lead { font-size: 21px; line-height: 1.6; color: var(--muted); }
.lead > * + * { margin-top: .8em; }
.muted { color: var(--muted); }

.btn { display: inline-flex; align-items: center; gap: 10px; min-height: 48px; padding: 0 22px; border-radius: 999px; font-family: var(--body); font-size: 17px; font-weight: 600; text-decoration: none !important; border: 1px solid transparent; cursor: pointer; transition: background .2s, border-color .2s, color .2s; white-space: nowrap; }
.btn .icon { font-size: 18px; }
.btn--primary { background: var(--aurora); color: var(--ink) !important; }
.btn--primary:hover { background: #A9DCCA; }
.btn--ghost-light { border-color: rgba(255,255,255,.55); color: #fff !important; background: rgba(255,255,255,.04); }
.btn--ghost-light:hover { border-color: #fff; background: rgba(255,255,255,.1); }
.btn--sm { min-height: 40px; padding: 0 16px; font-size: 15px; }
.textlink { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; text-decoration: none !important; }
.textlink .icon { font-size: 16px; }

.header { position: relative; z-index: 5; background: var(--ink); color: var(--on-ink); border-bottom: 1px solid var(--ink-line); }
.header--overlay { position: absolute; top: 0; left: 0; right: 0; background: transparent; border-bottom-color: rgba(255,255,255,.12); }
.header__row { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.brand { display: inline-flex; align-items: baseline; gap: 12px; color: #fff !important; text-decoration: none !important; }
.brand__mark { font-family: var(--display); font-weight: 400; font-size: 34px; line-height: 1; }
.brand__mark span { color: var(--aurora); }
.brand__name { font-family: var(--display); font-weight: 600; font-size: 18px; letter-spacing: .04em; color: var(--on-ink); }
.nav { display: flex; align-items: center; gap: 32px; }
.nav a { color: var(--on-ink) !important; text-decoration: none; font-size: 16px; font-weight: 600; opacity: .85; }
.nav a:hover, .nav a[aria-current] { opacity: 1; color: #fff !important; }
.nav a[aria-current] { box-shadow: inset 0 -2px 0 var(--aurora); padding-bottom: 4px; }
.nav__stores { display: flex; gap: 8px; padding-left: 24px; border-left: 1px solid rgba(255,255,255,.16); }
.nav__store { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 999px; border: 1px solid rgba(255,255,255,.2); opacity: 1 !important; }
.nav__store .icon { font-size: 18px; }
.menu-btn { display: none; width: 44px; height: 44px; border-radius: 999px; border: 1px solid rgba(255,255,255,.25); background: transparent; color: #fff; align-items: center; justify-content: center; cursor: pointer; }
.menu-btn .icon { font-size: 20px; }

.hero { position: relative; min-height: 900px; min-height: 100svh; display: flex; align-items: center; justify-content: center; color: #fff; text-align: center; overflow: hidden; background-color: var(--ink); background-size: cover; background-position: center; }
.hero::after { content: ""; position: absolute; inset: 0; background: rgba(6,10,16,.5); }
.hero__inner { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; gap: 36px; padding: 120px 24px; }
.hero__word { font-family: var(--display); font-weight: 300; font-size: min(168px, 13vw); line-height: .95; letter-spacing: -.035em; display: inline-flex; white-space: nowrap; }
.hero__char { display: inline-block; opacity: 0; transform: translateY(.32em); filter: blur(12px); animation: charIn 1000ms cubic-bezier(.16,.84,.24,1) forwards; animation-delay: calc(var(--i) * 60ms + 250ms); }
.hero__char--dot { color: var(--aurora); transform: translateY(0) scale(.2); filter: none; animation-name: dotIn; animation-duration: 600ms; }
.hero__rule { width: 96px; height: 1px; background: rgba(255,255,255,.6); transform: scaleX(0); animation: ruleIn 800ms cubic-bezier(.65,0,.35,1) 1300ms forwards; }
.hero__cta { opacity: 0; transform: translateY(12px); animation: fadeUp 700ms ease-out 1550ms forwards; }
@keyframes charIn { to { opacity: 1; transform: translateY(0); filter: blur(0); } }
@keyframes dotIn { 0% { opacity: 0; transform: scale(.2); } 70% { opacity: 1; transform: scale(1.25); } 100% { opacity: 1; transform: scale(1); } }
@keyframes ruleIn { to { transform: scaleX(1); } }
@keyframes fadeUp { to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) {
  .hero__char, .hero__rule, .hero__cta { animation: none !important; opacity: 1 !important; transform: none !important; filter: none !important; }
}

.section { padding: 128px 0; }
.section--ink { background: var(--ink-2); color: var(--on-ink); }
.section--ink .lead, .section--ink .muted { color: var(--on-ink-muted); }
.section--ink a { color: var(--aurora); }
.section--surface { background: var(--surface); }
.about { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 80px; align-items: start; }
.section-head { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 80px; align-items: end; margin-bottom: 64px; }

.apps { border-top: 1px solid var(--line-strong); }
.app-row { display: grid; grid-template-columns: 88px minmax(0, 1fr) auto; gap: 28px; align-items: center; padding: 28px 0; border-bottom: 1px solid var(--line); }
.app-icon { width: 88px; height: 88px; border-radius: 22px; box-shadow: 0 1px 2px rgba(11,16,23,.08), 0 8px 24px rgba(11,16,23,.08); }
.app-icon--sm { width: 56px; height: 56px; border-radius: 14px; }
.app-icon--xs { width: 32px; height: 32px; border-radius: 8px; box-shadow: none; }
.app-row__name { font-family: var(--display); font-weight: 600; font-size: 32px; line-height: 1.1; letter-spacing: -.01em; }
.app-row__desc { color: var(--muted); font-size: 18px; margin-top: 4px; max-width: 520px; }
.app-row__links { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; align-items: center; }
.pill { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface); color: var(--text) !important; font-size: 15px; font-weight: 600; text-decoration: none !important; white-space: nowrap; }
.pill:hover { border-color: var(--text); }
.pill .icon { font-size: 16px; }
.pill--accent { background: var(--ink); border-color: var(--ink); color: #fff !important; }
.pill--accent:hover { background: var(--ink-3); }

.help-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1px; background: var(--ink-line); border: 1px solid var(--ink-line); border-radius: 24px; overflow: hidden; }
.help-card { background: var(--ink-2); padding: 48px; display: flex; flex-direction: column; gap: 20px; align-items: flex-start; }
.help-card__title { font-family: var(--display); font-weight: 600; font-size: 28px; color: #fff; letter-spacing: -.01em; }
.help-card .muted { font-size: 18px; }
.help-card .muted > * + * { margin-top: .8em; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip-dark { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 0 14px 0 6px; border-radius: 999px; background: var(--ink-3); color: var(--on-ink) !important; text-decoration: none !important; font-size: 15px; font-weight: 600; }
.chip-dark img { width: 28px; height: 28px; border-radius: 7px; }
.chip-dark { transition: background .2s, box-shadow .2s, color .2s; }
.chip-dark:hover, .chip-dark:focus-visible { background: #2E3A47; color: #fff !important; box-shadow: inset 0 0 0 1px var(--aurora); }

.footer { background: var(--ink); color: var(--on-ink-muted); padding: 72px 0 40px; font-size: 15px; }
.footer__top { display: grid; grid-template-columns: minmax(0, 2fr) repeat(2, minmax(0, 1fr)); gap: 48px; padding-bottom: 48px; border-bottom: 1px solid var(--ink-line); }
.footer__label { font-family: var(--mono); font-size: 13px; letter-spacing: .01em; color: var(--on-ink-muted); margin-bottom: 16px; font-weight: 600; }
.footer__links { display: flex; flex-direction: column; gap: 10px; }
.footer a { color: var(--on-ink) !important; text-decoration: none; }
.footer a:hover { color: var(--aurora) !important; }
.footer__bottom { padding-top: 28px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer__bottom p { margin: 0; }

.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 15px; color: var(--muted); }
.crumbs a { color: var(--muted) !important; text-decoration: none; }
.crumbs a:hover { color: var(--text) !important; text-decoration: underline; }
.crumbs .icon { font-size: 12px; opacity: .6; }
.page-head { background: var(--surface); border-bottom: 1px solid var(--line); padding: 40px 0 48px; }
.page-head--hub { background: var(--ink) center / cover no-repeat; color: #fff; padding: 96px 0 104px; position: relative; border-bottom: 0; }
.page-head--hub::before { content: ""; position: absolute; inset: 0; background: rgba(6,10,16,.72); }
.page-head--hub > * { position: relative; }
.page-head--hub .lead { color: #C7D0D8; max-width: 720px; }
.page-head__stack { display: flex; flex-direction: column; gap: 20px; }
.search { position: relative; display: flex; align-items: center; max-width: 640px; }
.search > .icon { position: absolute; left: 20px; font-size: 20px; color: var(--muted); pointer-events: none; }
.search input { width: 100%; height: 60px; padding: 0 20px 0 54px; border-radius: 16px; border: 1px solid var(--line-strong); background: var(--surface); font: inherit; font-size: 18px; color: var(--text); }
.search input:focus { outline: 3px solid rgba(143,208,185,.55); outline-offset: 0; border-color: var(--aurora-deep); }
.search--hero { margin-top: 16px; }
.search--hero input { border-color: transparent; box-shadow: 0 12px 40px rgba(0,0,0,.35); }
.search kbd { position: absolute; right: 16px; font-family: var(--mono); font-size: 12px; color: var(--muted); border: 1px solid var(--line); border-radius: 6px; padding: 2px 7px; }
.search-results { position: absolute; top: calc(100% + 8px); left: 0; right: 0; z-index: 10; margin: 0; padding: 8px; list-style: none; max-height: 420px; overflow-y: auto; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); box-shadow: 0 24px 48px rgba(0,0,0,.25); text-align: left; }
.search-results a { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 10px; color: var(--text) !important; text-decoration: none; }
.search-results a:hover, .search-results a:focus, .search-results a.is-active { background: var(--paper); outline: none; }
.search-results img { width: 28px; height: 28px; border-radius: 7px; flex: none; }
.search-results__title { font-weight: 600; font-size: 16px; line-height: 1.35; }
.search-results__meta { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.search-results__empty { padding: 12px; color: var(--muted); font-size: 16px; }

.hub-section { padding: 80px 0 72px; }
.hub-section__head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 32px; }
.app-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.app-card { display: flex; flex-direction: column; gap: 18px; padding: 28px; border-radius: 20px; background: var(--surface); border: 1px solid var(--line); color: var(--text) !important; text-decoration: none !important; transition: border-color .2s, transform .2s, box-shadow .2s; }
.app-card:hover { border-color: var(--line-strong); box-shadow: 0 12px 32px rgba(11,16,23,.08); transform: translateY(-2px); }
.app-card__top { display: flex; align-items: center; gap: 16px; }
.app-card__name { font-family: var(--display); font-weight: 600; font-size: 26px; line-height: 1.1; letter-spacing: -.01em; }
.app-card__meta { font-family: var(--mono); font-size: 13px; color: var(--muted); margin-top: 2px; }
.app-card__cats { font-size: 15px; color: var(--muted); line-height: 1.5; }
.app-card__go { margin-top: auto; display: flex; align-items: center; justify-content: space-between; padding-top: 16px; border-top: 1px solid var(--line); font-weight: 600; color: var(--aurora-deep); font-size: 16px; }
.app-card__go .icon { font-size: 18px; }
.start-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.start-item { display: flex; flex-direction: column; gap: 12px; padding: 20px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); text-decoration: none !important; color: var(--text) !important; font-weight: 600; font-size: 16px; line-height: 1.35; }
.start-item:hover { border-color: var(--line-strong); }
.contact { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 40px; align-items: center; padding: 48px; border-radius: 24px; background: var(--ink-2); color: var(--on-ink); }
.contact .muted { color: var(--on-ink-muted); font-size: 18px; max-width: 640px; }
.contact .muted > * + * { margin-top: .8em; }
.contact a:not(.btn) { color: var(--aurora); }

.app-head { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 28px; align-items: center; margin-top: 28px; }
.app-head__title { font-family: var(--display); font-weight: 500; font-size: 56px; line-height: 1; letter-spacing: -.02em; }
.app-head__desc { color: var(--muted); font-size: 19px; margin-top: 8px; }
.app-head__desc .eyebrow { margin-left: 8px; }
.support-layout { display: flex; flex-wrap: wrap; gap: 56px; align-items: flex-start; padding: 48px 0 112px; }
.cat-nav { flex: 1 1 240px; max-width: 260px; display: flex; flex-direction: column; gap: 2px; }
.cat-nav__label { font-family: var(--mono); font-size: 13px; letter-spacing: .01em; color: var(--muted); padding: 0 12px 10px; font-weight: 600; }
.cat-btn { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 44px; padding: 0 12px; border: 0; border-radius: 10px; background: transparent; font: inherit; font-size: 16px; font-weight: 600; color: var(--text); text-align: left; cursor: pointer; white-space: nowrap; }
.cat-btn:hover { background: #EFECE6; }
.cat-btn__n { font-family: var(--mono); font-size: 12px; color: var(--muted); font-weight: 400; }
.cat-btn--on, .cat-btn--on:hover { background: var(--ink); color: #fff; }
.cat-btn--on .cat-btn__n { color: var(--on-ink-muted); }
.cat-nav__help { margin-top: 28px; padding: 20px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); font-size: 15px; display: flex; flex-direction: column; gap: 10px; white-space: normal; }
.cat-nav__help > div > * + * { margin-top: .6em; }
.topics-main { flex: 999 1 560px; min-width: 0; display: flex; flex-direction: column; gap: 48px; }
.topics-tools { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.topics-tools .search { flex: 1 1 360px; max-width: 520px; }
.topic-group__head { display: flex; align-items: baseline; gap: 12px; padding-bottom: 14px; border-bottom: 1px solid var(--line-strong); }
.topic-group__title { font-family: var(--display); font-weight: 600; font-size: 28px; letter-spacing: -.01em; }
.topic-group__n { font-family: var(--mono); font-size: 13px; color: var(--muted); }
.topic { display: grid; grid-template-columns: minmax(0, 1fr) auto 20px; gap: 20px; align-items: center; padding: 18px 16px; margin: 0 -16px; border-bottom: 1px solid var(--line); text-decoration: none !important; color: var(--text) !important; border-radius: 12px; }
.topic:hover { background: var(--surface); border-bottom-color: transparent; box-shadow: 0 0 0 1px var(--line); }
.topic__title { font-size: 19px; font-weight: 600; line-height: 1.35; }
.topic__ex { font-size: 16px; color: var(--muted); margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topic > .icon { font-size: 16px; color: var(--muted); }
.tag { display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 10px; border-radius: 999px; font-family: var(--mono); font-size: 12px; letter-spacing: .02em; white-space: nowrap; font-weight: 600; }
.tag .icon { font-size: 13px; }
.tag--visual { background: var(--aurora-tint); color: #276B5A; }
.tag--answer { background: #ECEEF1; color: #3E4855; }
.tag--plain { background: transparent; border: 1px solid var(--line-strong); color: var(--muted); }
.topic__badge-m { display: none; }
.empty { padding: 40px; border: 1px dashed var(--line-strong); border-radius: 16px; color: var(--muted); text-align: center; }

.guide-head { padding: 40px 0 0; }
.guide-head__title { font-family: var(--display); font-weight: 500; font-size: 60px; line-height: 1.04; letter-spacing: -.02em; margin-top: 24px; max-width: 900px; }
.guide-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin-top: 20px; color: var(--muted); font-size: 16px; }
.guide-meta__app { display: inline-flex; align-items: center; gap: 10px; color: var(--text) !important; text-decoration: none !important; font-weight: 600; }
.guide-layout { display: flex; flex-wrap: wrap; gap: 72px; align-items: flex-start; padding: 48px 0 96px; }
.guide-main { flex: 999 1 600px; min-width: 0; }
.guide-rail { flex: 1 1 280px; max-width: 320px; display: flex; flex-direction: column; gap: 28px; }
.rail-box { padding: 24px; border-radius: 18px; background: var(--surface); border: 1px solid var(--line); }
.rail-box--ink { background: var(--ink-2); border-color: var(--ink-2); color: var(--on-ink); }
.rail-box--ink .rail-box__label { color: var(--on-ink-muted); }
.rail-box--ink .rail-box__text { font-size: 16px; color: #C7D0D8; margin-bottom: 16px; }
.rail-box--ink .rail-box__text > * + * { margin-top: .6em; }
.rail-box--ink a:not(.btn) { color: var(--aurora); }
.rail-box__label { font-family: var(--mono); font-size: 13px; letter-spacing: .01em; color: var(--muted); margin-bottom: 14px; font-weight: 600; }
.rail-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.rail-list a { display: flex; gap: 12px; padding: 9px 0; color: var(--text) !important; text-decoration: none; font-size: 16px; line-height: 1.4; border-top: 1px solid var(--line); }
.rail-list li:first-child a { border-top: 0; padding-top: 0; }
.rail-list a:hover { color: var(--aurora-deep) !important; }
.rail-list__n { font-family: var(--mono); font-weight: 400; font-size: 13px; color: var(--muted); padding-top: 2px; min-width: 22px; }
.rail-list a[aria-current] { font-weight: 600; }
.rail-list__section { font-weight: 700; font-size: 14px; padding: 14px 0 6px; border-top: 1px solid var(--line); }
.rail-list__section:first-child { padding-top: 0; border-top: 0; }
.rail-list__section + li a { border-top: 0; }
.rail-list a[aria-current] .rail-list__n { color: var(--aurora-deep); }
.rail-box .textlink { margin-top: 16px; font-size: 15px; }
.toc-m { display: none; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); padding: 0 16px; margin-bottom: 8px; }
.toc-m summary { min-height: 48px; display: flex; align-items: center; justify-content: space-between; font-weight: 600; cursor: pointer; }
.toc-m .rail-list { padding-bottom: 12px; }
.seg { display: inline-flex; padding: 4px; border-radius: 999px; background: #ECE9E3; gap: 2px; margin-bottom: 32px; }
.seg__btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 40px; padding: 0 16px; border: 0; border-radius: 999px; background: transparent; font: inherit; font-size: 15px; font-weight: 600; color: var(--muted); cursor: pointer; }
.seg__btn .icon { font-size: 16px; }
.seg__btn[aria-pressed="true"] { background: var(--surface); color: var(--text); box-shadow: 0 1px 3px rgba(11,16,23,.12); }

.prose { font-size: 19px; line-height: 1.7; color: #1E2630; max-width: 680px; }
.prose > * + * { margin-top: 1.1em; }
.prose--answer > p:first-child { font-size: 23px; line-height: 1.55; color: var(--text); }
.prose strong { font-weight: 700; color: var(--text); }
.prose ol, .prose ul { padding-left: 1.4em; margin-bottom: 0; }
.prose li + li { margin-top: .5em; }
.prose li::marker { font-family: var(--mono); font-size: .8em; color: var(--muted); }
.prose h2, .prose h3 { font-family: var(--display); font-weight: 500; font-size: 30px; line-height: 1.2; margin-top: 1.8em; }
.prose img { width: 280px; height: auto; border: 10px solid var(--ink); border-radius: 18px; box-shadow: 0 2px 6px rgba(11,16,23,.12), 0 24px 48px rgba(11,16,23,.14); }

.steps { display: flex; flex-direction: column; list-style: none; margin: 0; padding: 0; }
.step { display: grid; grid-template-columns: 56px minmax(0, 1fr) 280px; gap: 32px; padding: 40px 0; border-top: 1px solid var(--line); align-items: start; scroll-margin-top: 24px; }
.step:first-child { border-top: 0; padding-top: 8px; }
.step__n { width: 48px; height: 48px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface); display: flex; align-items: center; justify-content: center; font-family: var(--mono); font-size: 15px; color: var(--text); }
.step__n--intro { border-style: dashed; color: var(--muted); }
.step__text { font-size: 20px; line-height: 1.6; padding-top: 8px; max-width: 460px; }
.step__text > * + * { margin-top: .8em; }
.step__text strong { font-weight: 700; }
.step__text ol, .step__text ul { padding-left: 1.3em; }
.step__kicker { font-family: var(--mono); font-size: 13px; letter-spacing: .01em; color: var(--muted); margin-bottom: 8px; font-weight: 600; }
.step__shots { display: flex; flex-direction: column; gap: 20px; }
.step--section { display: block; padding: 48px 0 0; border-top: 0; }
.step--section:first-child { padding-top: 0; }
.step--section + .step { border-top: 0; padding-top: 24px; }
.step__section { font-family: var(--display); font-weight: 600; font-size: 30px; line-height: 1.2; padding-bottom: 14px; border-bottom: 1px solid var(--line-strong); letter-spacing: -.01em; }
.shot { width: 280px; margin: 0; border-radius: 22px; padding: 10px; background: var(--ink); box-shadow: 0 2px 6px rgba(11,16,23,.12), 0 24px 48px rgba(11,16,23,.14); }
.shot img { display: block; width: 100%; height: auto; border-radius: 8px; }
.callout { display: flex; gap: 16px; padding: 22px 24px; border-radius: 16px; background: var(--aurora-tint); color: #1F4A3F; font-size: 17px; line-height: 1.6; }
.callout > .icon { font-size: 22px; flex: none; color: var(--aurora-deep); margin-top: 2px; }
.callout__body > * + * { margin-top: .8em; }

.pager { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 56px; }
.pager a { display: flex; flex-direction: column; gap: 6px; padding: 22px 24px; border-radius: 18px; border: 1px solid var(--line); background: var(--surface); color: var(--text) !important; text-decoration: none !important; }
.pager a:hover { border-color: var(--line-strong); }
.pager__dir { display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 13px; letter-spacing: .01em; color: var(--muted); font-weight: 600; }
.pager__dir .icon { font-size: 13px; }
.pager__title { font-size: 18px; font-weight: 600; line-height: 1.35; }
.pager a.pager--next { text-align: right; align-items: flex-end; grid-column: 2; }

.error-page { padding: 120px 0 140px; }
.error-page .lead { margin-top: 20px; max-width: 640px; }
.error-page .btn { margin-top: 36px; }

@media (max-width: 900px) {
  .wrap { padding: 0 20px; }
  .menu-btn { display: inline-flex; }
  .nav { display: none; }
  .header.is-open { background: var(--ink); }
  .header.is-open .header__row { flex-wrap: wrap; height: auto; min-height: 72px; padding-top: 14px; padding-bottom: 14px; }
  .header.is-open .nav { display: flex; order: 3; width: 100%; flex-direction: column; align-items: stretch; gap: 0; padding: 8px 0 12px; }
  .header.is-open .nav > a { padding: 14px 0; border-top: 1px solid var(--ink-line); }
  .header.is-open .nav a[aria-current] { box-shadow: none; color: var(--aurora) !important; }
  .header.is-open .nav__stores { padding: 16px 0 0; border-left: 0; border-top: 1px solid var(--ink-line); }
  .hero { min-height: 760px; min-height: 100svh; }
  .section { padding: 80px 0; }
  .about, .section-head { grid-template-columns: minmax(0, 1fr); gap: 24px; margin-bottom: 40px; }
  .display-xl { font-size: 42px; font-weight: 400; letter-spacing: -.025em; }
  .display-l { font-size: 36px; font-weight: 500; letter-spacing: -.02em; }
  .display-m { font-size: 26px; font-weight: 600; letter-spacing: -.01em; }
  .lead { font-size: 19px; }
  .app-row { grid-template-columns: 64px minmax(0, 1fr); gap: 16px 18px; padding: 24px 0; align-items: start; }
  .app-row .app-icon { width: 64px; height: 64px; border-radius: 16px; }
  .app-row__name { font-size: 26px; font-weight: 600; letter-spacing: -.01em; }
  .app-row__desc { font-size: 17px; }
  .app-row__links { grid-column: 1 / -1; justify-content: flex-start; }
  .help-grid { grid-template-columns: minmax(0, 1fr); border-radius: 20px; }
  .help-card { padding: 28px 24px; }
  .footer__top { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .page-head--hub { padding: 56px 0 64px; }
  .search kbd { display: none; }
  .hub-section { padding: 48px 0; }
  .app-cards { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .app-card { padding: 20px; gap: 14px; }
  .app-card__cats, .app-card__go { display: none; }
  .start-list { grid-template-columns: minmax(0, 1fr); gap: 0; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
  .start-item { flex-direction: row; align-items: center; border-radius: 0; border: 0; border-top: 1px solid var(--line); padding: 14px 16px; }
  .start-item:first-child { border-top: 0; }
  .contact { grid-template-columns: minmax(0, 1fr); padding: 28px 24px; gap: 24px; }
  .contact .btn { justify-content: center; }
  .page-head { padding: 24px 0 28px; }
  .app-head { grid-template-columns: auto minmax(0, 1fr); gap: 16px; margin-top: 20px; }
  .app-head .app-icon { width: 64px; height: 64px; border-radius: 16px; }
  .app-head__title { font-size: 38px; font-weight: 500; letter-spacing: -.02em; }
  .app-head__desc { font-size: 17px; }
  .app-head__links { grid-column: 1 / -1; justify-content: flex-start; }
  .support-layout { flex-direction: column; flex-wrap: nowrap; gap: 24px; padding: 0 0 72px; align-items: stretch; }
  .cat-nav { max-width: none; min-width: 0; flex: none; flex-direction: row; overflow-x: auto; gap: 8px; margin: 0 -20px; padding: 16px 20px; background: var(--paper); border-bottom: 1px solid var(--line); }
  .cat-nav__label, .cat-nav__help { display: none; }
  .cat-btn { min-height: 40px; border: 1px solid var(--line-strong); border-radius: 999px; padding: 0 14px; background: var(--surface); font-size: 15px; }
  .cat-btn--on, .cat-btn--on:hover { border-color: var(--ink); background: var(--ink); }
  .topics-main { gap: 36px; flex: none; }
  .topic { grid-template-columns: minmax(0, 1fr) 18px; gap: 12px; padding: 16px 12px; margin: 0 -12px; }
  .topic > .tag { display: none; }
  .topic__badge-m { display: inline-flex; margin-top: 8px; }
  .topic__title { font-size: 18px; }
  .topic__ex { white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; font-size: 15px; }
  .guide-head { padding-top: 24px; }
  .guide-head__title { font-size: 38px; margin-top: 16px; font-weight: 500; letter-spacing: -.02em; }
  .guide-layout { flex-direction: column; flex-wrap: nowrap; gap: 40px; padding: 28px 0 64px; }
  .guide-main, .guide-rail { flex: none; max-width: none; width: 100%; }
  .seg { display: flex; width: 100%; margin-bottom: 16px; }
  .seg__btn { flex: 1; padding: 0 10px; white-space: nowrap; }
  .seg__btn .icon { display: none; }
  .prose { font-size: 18px; }
  .prose--answer > p:first-child { font-size: 20px; }
  .prose img { width: 100%; max-width: 260px; }
  .step { grid-template-columns: 40px minmax(0, 1fr); gap: 16px; padding: 28px 0; }
  .step__n { width: 40px; height: 40px; font-size: 13px; }
  .step__text { font-size: 18px; padding-top: 6px; }
  .step__shots { grid-column: 2; }
  .shot { width: 100%; max-width: 260px; border-radius: 20px; }
  .pager { grid-template-columns: minmax(0, 1fr); }
  .pager a.pager--next { grid-column: auto; }
  .rail-toc--desktop { display: none; }
  .toc-m { display: block; }
  .error-page { padding: 72px 0 96px; }
}