:root {
  --color-main: #17363d;
  --color-main-dark: #10282e;

  --color-sub: #f3f0e9;
  --color-surface: #ffffff;

  --color-accent: #d87943;
  --color-accent-hover: #be6130;

  --color-text: #202527;
  --color-text-light: #697174;

  --color-border: #d9d6cf;

  --font-sans: "Noto Sans JP", sans-serif;
  --font-serif: "Noto Serif JP", serif;

  --content-width: min(1120px, calc(100% - 32px));
  --transition: 0.35s ease;
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  --header-height: 84px;
}

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

html {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
  display: none;
}
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-sub);
  line-height: 1.8;
  word-break: break-word;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.skip-link,
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  white-space: nowrap;
  clip-path: inset(50%);
}

.skip-link:focus {
  width: auto;
  height: auto;
  padding: 12px 16px;
  background: #fff;
  color: #000;
  clip-path: none;
  left: 12px;
  top: 12px;
  z-index: 10000;
}

.section-heading {
  width: var(--content-width);
  margin: 0 auto 32px;
}

.section-heading p {
  margin: 0 0 8px;
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.2;
  color: var(--color-main);
  font-family: var(--font-serif);
}

.section-heading span {
  display: inline-block;
  margin-top: 10px;
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.button,
.button-link {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 56px;
  padding: 0 24px;
  border: 1px solid var(--color-main);
  transition: var(--transition);
}

.button--main {
  background: var(--color-main);
  color: #fff;
}

.button--main:hover,
.button--main:focus-visible {
  background: var(--color-main-dark);
}

.button--ghost {
  background: transparent;
  color: var(--color-main);
}

.button--ghost:hover,
.button--ghost:focus-visible,
.button-link:hover,
.button-link:focus-visible {
  background: #fff;
  color: var(--color-main);
  box-shadow: var(--shadow);
}

/* ========================================
   SITE HEADER
   背景透過・ロゴ左寄せ・NAV右寄せ
======================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  background: transparent;
  border-bottom: 0;
  backdrop-filter: none;
}

.site-header__inner {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: clamp(16px, 2vw, 32px);
  margin: 0;
  min-height: var(--header-height);
  /*
   * 参考画像のように、画面端へ寄せつつ
   * 端へ密着しすぎない余白だけ残す
   */
  padding: 0 clamp(16px, 2.4vw, 48px);
}

.site-logo {
  flex: 0 0 auto;
}

.site-logo img {
  width: auto;
  max-height: 56px;
}

/* ========================================
   GLOBAL NAVIGATION
======================================== */

.global-nav {
  margin-right: 0;
  margin-left: auto;
}

.global-nav__list {
  display: flex;
  align-items: stretch;
  gap: 0;
}

.global-nav__item {
  position: relative;
  display: flex;
  align-items: stretch;
}

.global-nav__item > a,
.nav-dropdown__toggle,
.global-nav__search {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 84px;
  padding: 0 14px;
  border: 0;
  background: transparent;
  color: var(--color-main);
  font-family: inherit;
  font-size: 0.89rem;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
}

.global-nav__item > a::after,
.nav-dropdown__toggle::after,
.global-nav__search::after {
  content: "";
  position: absolute;
  right: 14px;
  bottom: 18px;
  left: 14px;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.3s ease;
}

.global-nav__item > a:hover::after,
.global-nav__item > a:focus-visible::after,
.nav-dropdown__toggle:hover::after,
.nav-dropdown__toggle:focus-visible::after,
.global-nav__search:hover::after,
.global-nav__search:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left center;
}

/* 下向き矢印 */

.nav-dropdown__toggle span {
  position: relative;
  width: 8px;
  height: 8px;
  margin-left: 9px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform 0.25s ease;
}

.nav-dropdown.is-open .nav-dropdown__toggle span {
  transform: translateY(2px) rotate(225deg);
}

/* ドロップダウン本体 */

.nav-dropdown__menu {
  position: absolute;
  top: calc(100% + 1px);
  left: 50%;
  z-index: 100;
  display: grid;
  width: 440px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 18px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: 0 18px 40px rgba(16, 40, 46, 0.16);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(-8px);
  transition:
    opacity 0.25s ease,
    visibility 0.25s ease,
    transform 0.25s ease;
}

.nav-dropdown__menu a {
  display: flex;
  min-height: 94px;
  flex-direction: column;
  justify-content: center;
  padding: 18px;
  border-right: 1px solid var(--color-border);
  background: var(--color-surface);
  transition:
    background 0.25s ease,
    color 0.25s ease;
}

.nav-dropdown__menu a:last-child {
  border-right: 0;
}

.nav-dropdown__menu a:hover,
.nav-dropdown__menu a:focus-visible {
  background: var(--color-main);
  color: var(--color-surface);
}

.nav-dropdown__menu small {
  margin-bottom: 5px;
  color: var(--color-accent);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.11em;
}

.nav-dropdown__menu strong {
  font-size: 0.92rem;
  line-height: 1.55;
}

/* PCではホバー・フォーカスでも開く */

@media (min-width: 1081px) {
  .nav-dropdown:hover .nav-dropdown__menu,
  .nav-dropdown:focus-within .nav-dropdown__menu,
  .nav-dropdown.is-open .nav-dropdown__menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
  }
}

/* ========================================
   MOBILE NAVIGATION
======================================== */

@media (max-width: 1080px) {
  .menu-toggle {
    display: block;
  }

  .global-nav {
    position: fixed;
    top: 84px;
    right: 0;
    width: min(420px, 100%);
    height: calc(100dvh - 84px);
    margin: 0;
    padding: 18px;
    border-left: 1px solid var(--color-border);
    background: var(--color-surface);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.35s ease;
  }

  .global-nav.is-open {
    transform: translateX(0);
  }

  .global-nav__list {
    display: block;
  }

  .global-nav__item {
    display: block;
    border-bottom: 1px solid var(--color-border);
  }

  .global-nav__item > a,
  .nav-dropdown__toggle,
  .global-nav__search {
    width: 100%;
    min-height: 60px;
    justify-content: space-between;
    padding: 0 10px;
    text-align: left;
  }

  .global-nav__item > a::after,
  .nav-dropdown__toggle::after,
  .global-nav__search::after {
    display: none;
  }

  .nav-dropdown__menu {
    position: static;
    display: none;
    width: 100%;
    grid-template-columns: 1fr;
    padding: 0 0 12px;
    border: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .nav-dropdown.is-open .nav-dropdown__menu {
    display: grid;
  }

  .nav-dropdown__menu a {
    min-height: 76px;
    margin-top: 6px;
    padding: 13px 16px;
    border: 0;
    background: var(--color-sub);
  }
}

.menu-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 0;
  color: var(--color-main);
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  margin: 5px 0;
  background: currentColor;
}

.menu-toggle b {
  display: block;
  margin-top: 4px;
  font-size: 0.7rem;
}

.site-footer {
  padding: 64px 0 0;
  background: var(--color-main);
  color: #fff;
}

.site-footer__inner {
  width: var(--content-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
}

.site-footer__brand img {
  max-height: 70px;
  margin-bottom: 20px;
}

.site-footer__brand p {
  margin: 0;
  color: rgba(255, 255, 255, 0.8);
}

.site-footer__nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.site-footer__nav h3 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.site-footer__nav a {
  color: rgba(255, 255, 255, 0.82);
}

.site-footer__nav li + li {
  margin-top: 10px;
}

.site-footer__bottom {
  width: var(--content-width);
  min-height: 72px;
  margin: 48px auto 0;
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.bot-float {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 999;
  min-width: 140px;
  min-height: 56px;
  padding: 0 18px;
  border: 0;
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow);
  cursor: pointer;
}

.bot-float:hover,
.bot-float:focus-visible {
  background: var(--color-accent-hover);
}

.hp-field {
  position: absolute;
  left: -9999px;
}

@media (max-width: 1080px) {
  .menu-toggle {
    display: block;
  }

  .global-nav {
    position: fixed;
    top: 84px;
    right: 0;
    width: min(360px, 100%);
    height: calc(100dvh - 84px);
    padding: 24px;
    background: #fff;
    border-left: 1px solid var(--color-border);
    transform: translateX(100%);
    transition: var(--transition);
    overflow-y: auto;
  }

  .global-nav.is-open {
    transform: translateX(0);
  }

  .global-nav ul {
    display: block;
  }

  .global-nav li + li {
    margin-top: 16px;
  }
}

@media (max-width: 767px) {
  :root {
    --header-height: 74px;
  }
  .site-header__inner {
    padding-right: 16px;
    padding-left: 16px;
  }

  .site-logo img {
    max-height: 48px;
  }

  .site-footer__inner,
  .site-footer__nav {
    grid-template-columns: 1fr;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .bot-float {
    right: 12px;
    bottom: 12px;
    min-width: 124px;
    min-height: 50px;
  }
}