:root {
  --navy: #0b1e38;
  --ink: #14233a;
  --muted: #647188;
  --blue: #0b63d8;
  --blue-dark: #0752b7;
  --blue-soft: #eef5ff;
  --page: #f6f8fc;
  --panel: #ffffff;
  --line: #dce5f2;
  --shadow: 0 16px 40px rgba(26, 64, 114, .08);
  color-scheme: light;
}

* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}
body {
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  background: #fff;
  color: var(--ink);
  font-family: Inter, Pretendard, Arial, "Malgun Gothic", sans-serif;
  line-height: 1.6;
  word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}
body > main { flex: 1 0 auto; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin-top: 0; }
[hidden] { display: none !important; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid #78aef2;
  outline-offset: 3px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.skip-link {
  position: fixed;
  top: -70px;
  left: 18px;
  z-index: 100;
  padding: 11px 16px;
  background: var(--navy);
  color: #fff;
  border-radius: 6px;
}
.skip-link:focus { top: 12px; }
.content-shell, .header-inner, .hero-inner {
  width: min(1080px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid #e6edf7;
  backdrop-filter: blur(12px);
}
.header-inner {
  position: relative;
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 36px;
}
@media (min-width: 1251px) {
  .site-header .header-inner > .auth-menu + .header-notifications { margin-left: -28px; }
}
.auth-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
  margin-left: auto;
}
.auth-menu button, .auth-menu a {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  text-decoration: none;
  min-height: 32px;
  padding: 0 9px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: #66748a;
  font-family: inherit;
  font-size: 11px;
  letter-spacing: 0;
  font-weight: 700;
}
.auth-menu button:hover, .auth-menu a:hover {
  color: var(--blue);
  background: var(--blue-soft);
}
.auth-profile { position: relative; }
.profile-trigger {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 34px;
  padding: 3px 8px !important;
  border: 1px solid #dce6f3 !important;
  border-radius: 999px !important;
  background: #fff !important;
  color: var(--navy) !important;
}
.profile-avatar { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--blue-soft); color: var(--blue); font-size: 11px; font-weight: 800; }
.profile-name { max-width: 112px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 11px; }
.profile-chevron { color: #788397; font-size: 13px; }
.profile-popover { position: absolute; z-index: 40; top: calc(100% + 8px); right: 0; width: 188px; padding: 12px; border: 1px solid #e1e8f2; border-radius: 10px; background: #fff; box-shadow: 0 12px 30px rgba(19, 42, 75, .14); }
.profile-popover[hidden], .auth-profile[hidden] { display: none; }
.profile-caption { margin: 0 0 10px; color: #748197; font-size: 11px; }
.profile-feedback { margin: 0 0 9px; color: #c2413a; font-size: 11px; line-height: 1.5; }
.profile-feedback[hidden] { display: none; }
.auth-menu .profile-admin { display: block; min-height: 34px; margin-bottom: 6px; padding: 9px; border: 1px solid #dce6f3; border-radius: 6px; color: var(--blue); font-size: 12px; font-weight: 700; text-align: center; text-decoration: none; }
.auth-menu .profile-admin:hover { background: var(--blue-soft); }
.auth-menu .profile-admin[hidden] { display: none; }
.auth-menu .profile-logout { display: flex; align-items: center; justify-content: center; width: 100%; min-height: 34px; border-radius: 6px; background: #f2f6fb; color: var(--navy); font-size: 12px; text-align: center; }
.auth-menu .profile-logout:hover { background: var(--blue-soft); color: var(--blue); }
.auth-menu .profile-switch { display: flex; align-items: center; justify-content: center; width: 100%; min-height: 34px; margin-bottom: 6px; border: 1px solid #dce6f3; border-radius: 6px; background: #fff; color: var(--navy); font-size: 12px; font-weight: 700; text-align: center; }
.auth-menu .profile-switch:hover { background: var(--blue-soft); color: var(--blue); }
.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-shrink: 0;
  color: var(--navy);
  font-size: 18px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.04em;
}
.brand b, .site-footer strong span { color: var(--blue); }
.brand small {
  display: block;
  margin-top: 5px;
  color: #788397;
  font-size: 7px;
  font-weight: 700;
  letter-spacing: .08em;
}
.brand-mark {
  width: 33px;
  height: 33px;
  display: block;
  flex: none;
  object-fit: contain;
}
.main-nav {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 32px;
  white-space: nowrap;
}
.main-nav a {
  padding: 10px 14px;
  color: #526177;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 700;
  transition: color .2s, background .2s;
}
.main-nav a:hover {
  color: var(--blue);
  background: var(--blue-soft);
}
.main-nav a.is-active {
  color: #fff;
  background: var(--blue);
}
.button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 800;
  transition: background .2s, transform .2s;
}
.button:hover { transform: translateY(-2px); }
.button-primary {
  color: #fff;
  background: var(--blue);
}
.button-primary:hover { background: var(--blue-dark); }

.auth-dialog {
  width: min(440px, calc(100% - 32px));
  max-height: calc(100dvh - 32px);
  padding: 0;
  overflow: visible;
  border: 0;
  border-radius: 16px;
  background: transparent;
  color: var(--ink);
}
.auth-dialog::backdrop {
  background: rgba(6, 19, 38, .55);
  backdrop-filter: blur(3px);
}
.auth-card {
  position: relative;
  max-height: calc(100dvh - 32px);
  overflow-y: auto;
  padding: 28px;
  border: 1px solid #dce5f2;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(5, 25, 55, .25);
}
.auth-close {
  position: absolute;
  top: 14px;
  right: 16px;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: #718096;
  font-size: 24px;
  line-height: 1;
}
.auth-close:hover { background: #edf2f8; color: var(--navy); }
.auth-panel h2 {
  margin-bottom: 5px;
  color: var(--navy);
  font-size: 25px;
  letter-spacing: -.035em;
}
.auth-panel > p {
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 13px;
}
.social-buttons { display: grid; gap: 10px; }
.social-button {
  position: relative;
  width: 100%;
  min-height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 1px solid #dce3ec;
  border-radius: 9px;
  background: #fff;
  color: #25344a;
  font-size: 14px;
  font-weight: 750;
  transition: transform .15s, box-shadow .15s;
}
.social-button:hover { transform: translateY(-1px); box-shadow: 0 5px 14px rgba(30, 54, 85, .1); }
.social-mark {
  position: absolute;
  left: 16px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  font-weight: 900;
}
.google-mark { color: #4285f4; font-size: 20px; }
.naver-mark { border-radius: 4px; background: #03c75a; color: #fff; font-size: 16px; }
.social-naver { border-color: #00843c; background: #00843c; color: #fff; }
.social-naver .naver-mark { background: #fff; color: #00843c; }
.kakao-mark { border-radius: 50%; background: #191919; color: #fee500; font-size: 12px; }
.social-kakao { border-color: #fee500; background: #fee500; color: #191919; }
.auth-consents {
  display: grid;
  gap: 2px;
  margin: 18px 0 0;
  padding: 12px 13px;
  border: 1px solid #e3eaf3;
  border-radius: 9px;
  background: #f8faff;
}
.auth-consents[hidden] { display: none; }
.auth-consents legend {
  padding: 0 5px;
  color: #657389;
  font-size: 12px;
  font-weight: 700;
}
.auth-consent-all {
  display: block;
  margin: 0 0 7px 0;
  padding: 5px 9px;
  border: 1px solid #c8d9f2;
  border-radius: 6px;
  background: #fff;
  color: var(--blue);
  font: inherit;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
}
.auth-consent-all:hover,
.auth-consent-all[aria-pressed="true"] { background: #edf4ff; border-color: var(--blue); }
.auth-check {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 30px;
  margin: 0;
  color: #657389;
  font-size: 12px;
}
.auth-check input { flex: 0 0 auto; accent-color: var(--blue); }
.auth-check strong { color: var(--blue); }
.auth-check label { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.auth-check a { margin-left: auto; color: var(--blue); font-weight: 700; text-decoration: underline; text-underline-offset: 2px; white-space: nowrap; }
.auth-feedback {
  min-height: 20px;
  margin: 14px 0 0;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
  text-align: center;
}

.hero {
  position: relative;
  overflow: hidden;
  background-color: #fff;
  background-image:
    linear-gradient(rgba(33, 103, 190, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(33, 103, 190, .04) 1px, transparent 1px);
  background-size: 36px 36px;
  border-bottom: 1px solid #e8eef7;
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding-top: 78px;
  padding-bottom: 62px;
  text-align: center;
}
.hero h1 {
  margin-bottom: 14px;
  color: var(--navy);
  font-size: clamp(49.92px, 6.24vw, 70.72px);
  line-height: 1;
  letter-spacing: -.075em;
}
.hero h1 span {
  color: var(--blue);
  font-weight: 900;
}
.hero-copy {
  margin-bottom: 34px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 600;
}
.hero-search {
  max-width: 720px;
  min-height: 60px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 6px 7px 6px 18px;
  background: #fff;
  border: 1px solid #9ebfea;
  border-radius: 12px;
  box-shadow: 0 10px 24px rgba(17, 79, 158, .13);
}
.hero-search svg {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--blue);
  stroke-width: 2;
}
.hero-search input {
  min-width: 0;
  flex: 1;
  padding: 0;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font-size: 15px;
}
.hero-search input::placeholder { color: #8a94a3; opacity: 1; }
.hero-search button {
  align-self: stretch;
  min-width: 76px;
  border: 0;
  border-radius: 8px;
  background: var(--blue);
  color: #fff;
  font-weight: 800;
}
.hero-search button:hover { background: var(--blue-dark); }
.quick-search {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 17px;
  color: #8994a5;
  font-size: 12px;
}
.quick-search > span { margin-right: 2px; font-weight: 700; }
.quick-search button {
  padding: 6px 11px;
  border: 0;
  border-radius: 999px;
  background: #edf2f9;
  color: #54647b;
  font-size: 12px;
}
.quick-search button:hover {
  background: #dfeafb;
  color: var(--blue);
}
.search-feedback {
  min-height: 22px;
  margin: 10px 0 0;
  color: var(--blue);
  font-size: 13px;
  font-weight: 700;
}
.site-search-results {
  max-width: 720px;
  max-height: min(52vh, 460px);
  margin: 10px auto 0;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: var(--shadow);
  text-align: left;
}
.site-search-result {
  display: block;
  padding: 14px 17px;
  border-bottom: 1px solid var(--line);
  color: inherit;
  text-align: left;
}
.site-search-result:last-child { border-bottom: 0; }
.site-search-result:hover, .site-search-result:focus-visible { background: var(--blue-soft); }
.site-search-result-page {
  display: block;
  margin-bottom: 3px;
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
}
.site-search-result-title {
  display: block;
  margin-bottom: 3px;
  color: var(--navy);
  font-size: 14px;
  font-weight: 800;
}
.site-search-result-snippet {
  display: block;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}
.site-search-empty { padding: 18px; color: var(--muted); text-align: center; }

.services-section { padding: 78px 0 86px; background: var(--page); border-top: 1px solid #e8edf5; }
.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
  margin-bottom: 36px;
}
.section-kicker {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}
.section-heading h2 {
  margin-bottom: 0;
  color: var(--navy);
  font-size: clamp(30px, 4vw, 40px);
  line-height: 1.25;
  letter-spacing: -.045em;
}
.section-heading > p {
  max-width: none;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}
.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-height: 235px;
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.service-card:hover {
  transform: translateY(-4px);
  border-color: #aac6eb;
  box-shadow: var(--shadow);
}
.service-number {
  position: absolute;
  top: 24px;
  right: 26px;
  color: #a9b6c8;
  font-size: 12px;
  font-weight: 800;
}
.service-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  margin-bottom: 24px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 10px;
  font-size: 17px;
  font-weight: 900;
}
.service-card h3 {
  margin-bottom: 9px;
  font-size: 21px;
  letter-spacing: -.025em;
}
.service-card p {
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 14px;
}
.service-tag {
  margin-top: auto;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
}

.conversion-section {
  padding: 78px 0 90px;
  background: var(--page);
  border-top: 1px solid #e8edf5;
}
.conversion-heading { margin-bottom: 30px; }
.conversion-board {
  overflow: hidden;
  background: #fff;
  border: 1px solid #d5e0ef;
  border-radius: 16px;
  box-shadow: var(--shadow);
}
.conversion-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 8px;
  background: #edf2f8;
  gap: 6px;
}
.conversion-tabs button {
  min-height: 48px;
  padding: 10px 14px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: #647187;
  font-size: 14px;
  font-weight: 800;
}
.conversion-tabs button[aria-selected="true"] {
  background: #fff;
  color: var(--blue);
  box-shadow: 0 3px 10px rgba(36, 68, 108, .08);
}
.conversion-panel { padding: 30px; }
.conversion-panel .tool-panel-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 24px; }
.conversion-panel .tool-panel-heading h2 { margin: 0 0 3px; color: var(--navy); font-size: 24px; }
.conversion-panel .tool-panel-heading p { margin: 0; color: var(--muted); font-size: 13px; }
.conversion-panel .tool-status { padding: 5px 9px; border-radius: 999px; color: var(--blue); background: #eaf2ff; font-size: 11px; font-weight: 800; }
.conversion-panel .calculator-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.conversion-panel .calculator-card { min-width: 0; padding: 20px; border: 1px solid #e1e9f4; border-radius: 12px; background: #f4f7fc; }
.conversion-panel .calculator-card h3 { margin: 0 0 18px; color: var(--navy); font-size: 17px; }
.conversion-panel .field { display: block; min-width: 0; }
.conversion-panel .field > span { display: block; margin-bottom: 6px; color: #647289; font-size: 12px; font-weight: 700; }
.conversion-panel .field input, .conversion-panel .field select { width: 100%; min-height: 44px; padding: 9px 11px; border: 1px solid #d6e1f0; border-radius: 7px; color: var(--ink); background: #fff; }
.conversion-panel .conversion-direction { margin-bottom: 14px; }
.conversion-panel .conversion-inputs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.conversion-panel .result-box { overflow-wrap: anywhere; margin-top: 18px; padding: 17px; border: 1px solid #d7e5f7; border-radius: 9px; background: #fff; }
.conversion-panel .result-box > span { display: block; color: #748197; font-size: 11px; }
.conversion-panel .result-box strong { display: block; margin-top: 3px; color: var(--blue); font-size: 24px; font-variant-numeric: tabular-nums; }
.conversion-panel .result-box small { color: #68768a; font-size: 11px; }
.conversion-panel .formula-note { margin: 15px 0 0; color: #728096; font-size: 12px; }
.converter-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.converter-card {
  min-width: 0;
  padding: 22px;
  background: #f3f7fd;
  border: 1px solid #e2eaf5;
  border-radius: 12px;
}
.converter-card header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.converter-card h3 {
  margin-bottom: 0;
  font-size: 19px;
}
.converter-card header span {
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
}
.converter-card label {
  display: block;
  margin: 22px 0 7px;
  color: #68768b;
  font-size: 12px;
  font-weight: 700;
}
.value-input {
  min-height: 48px;
  display: flex;
  align-items: center;
  background: #fff;
  border: 1px solid #dce5f1;
  border-radius: 8px;
}
.value-input input {
  width: 100%;
  min-width: 0;
  padding: 11px 8px 11px 12px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  text-align: right;
  font-size: 17px;
  font-variant-numeric: tabular-nums;
}
.value-input span {
  padding-right: 13px;
  color: #7b8798;
  font-size: 14px;
}
.converter-card dl { margin: 12px 0 0; }
.converter-card dl div {
  min-height: 34px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 7px 3px;
  border-bottom: 1px solid #e1e8f2;
  font-size: 12px;
}
.converter-card dl div:last-child { border-bottom: 0; }
.converter-card dt { color: #66748a; }
.converter-card dd {
  margin: 0;
  color: var(--blue);
  font-weight: 900;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.panel-intro {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 18px;
}
.panel-intro strong { font-size: 16px; }
.panel-intro span { color: var(--muted); font-size: 13px; }
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
th, td {
  min-width: 110px;
  padding: 14px;
  border: 1px solid var(--line);
  text-align: center;
}
thead th { background: var(--blue-soft); color: #315782; }
tbody th { background: #f8fafc; }
.condition-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.condition-grid article {
  padding: 24px;
  background: #f3f7fd;
  border: 1px solid #e0e8f4;
  border-radius: 12px;
}
.condition-grid article > span {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
}
.condition-grid strong {
  color: var(--ink);
  font-size: 19px;
}
.condition-grid p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 13px;
}
.reference-note {
  margin: 0;
  padding: 0 30px 24px;
  color: #758197;
  font-size: 12px;
}

.site-footer {
  background: #101d33;
  color: #fff;
}
.footer-inner {
  min-height: 88px;
  display: flex;
  align-items: center;
  gap: 44px;
}
.footer-inner strong { font-size: 18px; }
.footer-inner p {
  margin: 3px 0 0;
  color: #9daabd;
  font-size: 12px;
}
.footer-inner nav {
  display: flex;
  justify-content: flex-end;
  order: 3;
  gap: 24px;
  margin-left: auto;
  color: #bec8d6;
  font-size: 13px;
  transform: translateY(8px);
}
.footer-inner nav a:hover { color: #fff; }
.footer-inner small { color: #7f8da1; font-size: 11px; }
.footer-inner .footer-admin-meta { order: 2; color: #bfd7fb; font-variant-numeric: tabular-nums; white-space: nowrap; }

.search-match { animation: search-pulse 1.4s ease; }
@keyframes search-pulse {
  0%, 100% { box-shadow: none; }
  35% { box-shadow: 0 0 0 5px rgba(11, 99, 216, .18), var(--shadow); }
}

@media (max-width: 900px) {
  .header-inner { gap: 18px; }
  .brand small { display: none; }
  .main-nav { gap: 18px; }
  .main-nav a { font-size: 12px; }
  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }
  .section-heading > p { max-width: 560px; }
  .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .converter-grid, .conversion-panel .calculator-grid { grid-template-columns: 1fr; }
  .conversion-panel .tool-panel-heading { align-items: flex-start; flex-direction: column; gap: 8px; }
  .service-card { min-height: 0; }
  .footer-inner { flex-wrap: wrap; padding-block: 20px; gap: 18px 28px; }
  .footer-inner nav { order: 3; width: 100%; margin-left: 0; transform: none; }
  .footer-inner small { margin-left: auto; }
}

@media (max-width: 640px) {
  html { scroll-padding-top: 118px; }
  .content-shell, .header-inner, .hero-inner { width: calc(100% - 32px); }
  .header-inner { min-height: 106px; flex-wrap: wrap; gap: 8px 12px; padding-top: 8px; }
  .auth-menu { order: 2; margin-left: auto; }
  .brand { font-size: 20px; gap: 8px; }
  .brand { order: 1; }
  .brand-mark { width: 29px; height: 29px; }
  .brand small { display: none; }
  .main-nav {
    position: static;
    order: 3;
    width: 100%;
    transform: none;
    justify-content: space-between;
    gap: 18px;
    overflow-x: auto;
    border-top: 1px solid #e6edf7;
  }
  .main-nav a { padding: 8px 10px; font-size: 12px; }
  .auth-card { padding: 24px 20px; }
  .hero-inner { padding-top: 58px; padding-bottom: 44px; }
  .hero h1 { font-size: 49.92px; }
  .hero-copy { margin-bottom: 28px; font-size: 15px; }
  .hero-search { min-height: 54px; padding-left: 13px; gap: 9px; }
  .hero-search input { font-size: 13px; }
  .hero-search button { min-width: 60px; }
  .quick-search > span { width: 100%; }
  .services-section, .conversion-section { padding-block: 58px; }
  .section-heading { margin-bottom: 26px; }
  .section-heading h2 { font-size: 30px; }
  .section-heading > p { font-size: 13px; white-space: normal; }
  .service-card { padding: 24px; }
  .service-grid { grid-template-columns: 1fr; }
  .conversion-tabs { gap: 3px; padding: 6px; }
  .conversion-tabs button { min-height: 44px; padding: 8px 5px; font-size: 12px; }
  .conversion-panel { padding: 16px; }
  .converter-card { padding: 19px; }
  .panel-intro { flex-direction: column; gap: 4px; }
  .condition-grid { grid-template-columns: 1fr; }
  .reference-note { padding: 0 16px 18px; line-height: 1.7; }
  .footer-inner { flex-direction: row; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px 12px; padding-block: 18px; }
  .footer-inner strong { font-size: 16px; }
  .footer-inner p { font-size: 11px; }
  .footer-inner nav { order: 1; width: auto; flex-wrap: nowrap; gap: 8px; margin-left: auto; font-size: 11px; white-space: nowrap; transform: translateY(4px); }
  .footer-inner .footer-admin-meta { order: 3; flex-basis: 100%; margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}