:root {
    --ocean-900: #083f4d;
    --ocean-800: #0d5d6f;
    --ocean-700: #117387;
    --turquoise: #54c3bd;
    --sun: #fff496;
    --cream: #fffdf3;
    --coral: #ec7c60;
    --ink: #21353c;
    --muted: #64757a;
  }

  * {
    box-sizing: border-box;
  }

  body,
  h1,
  h2,
  h3,
  p,
  ol,
  ul {
    margin: 0;
  }

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

  img {
    max-width: 100%;
  }

  button {
    color: inherit;
    font: inherit;
  }

  html {
    scroll-behavior: smooth;
    scroll-padding-top: 88px;
  }

  body {
    min-height: max(884px, 100dvh);
    margin: 0;
    color: var(--ink);
    background:
      radial-gradient(circle at 8% 16%, rgba(84, 195, 189, 0.11), transparent 24rem),
      radial-gradient(circle at 92% 42%, rgba(255, 244, 150, 0.28), transparent 28rem),
      var(--cream);
    font-family: 'Plus Jakarta Sans', 'Noto Sans JP', sans-serif;
    line-height: 1.5;
  }

  .container {
    width: 100%;
  }

  .mx-auto {
    margin-right: auto;
    margin-left: auto;
  }

  .mt-3 {
    margin-top: 0.75rem;
  }

  .flex {
    display: flex;
  }

  .hidden {
    display: none;
  }

  .contents {
    display: contents;
  }

  .flex-grow {
    flex-grow: 1;
  }

  .h-\[76px\] {
    height: 76px;
  }

  .items-center {
    align-items: center;
  }

  .justify-between {
    justify-content: space-between;
  }

  .gap-6 {
    gap: 1.5rem;
  }

  .px-4,
  .\!px-4 {
    padding-right: 1rem;
    padding-left: 1rem;
  }

  .py-8 {
    padding-top: 2rem;
    padding-bottom: 2rem;
  }

  .\!py-2 {
    padding-top: 0.5rem !important;
    padding-bottom: 0.5rem !important;
  }

  .\!px-4 {
    padding-right: 1rem !important;
    padding-left: 1rem !important;
  }

  .\!mt-0 {
    margin-top: 0 !important;
  }

  .text-center {
    text-align: center;
  }

  .text-xs {
    font-size: 0.75rem;
    line-height: 1rem;
  }

  .text-sm {
    font-size: 0.875rem;
    line-height: 1.25rem;
  }

  .text-\[1rem\] {
    font-size: 1rem;
  }

  .text-\[1\.05rem\] {
    font-size: 1.05rem;
  }

  .text-\[1\.1rem\] {
    font-size: 1.1rem;
  }

  .sticky {
    position: sticky;
  }

  .top-0 {
    top: 0;
  }

  .z-50 {
    z-index: 50;
  }

  @media (min-width: 640px) {
    .container {
      max-width: 640px;
    }
  }

  @media (min-width: 768px) {
    .container {
      max-width: 768px;
    }
  }

  @media (min-width: 1024px) {
    .container {
      max-width: 1024px;
    }

    .lg\:flex {
      display: flex;
    }
  }

  @media (min-width: 1280px) {
    .container {
      max-width: 1280px;
    }
  }

  @media (min-width: 1536px) {
    .container {
      max-width: 1536px;
    }
  }

  a,
  button {
    -webkit-tap-highlight-color: transparent;
  }

  :focus-visible {
    outline: 3px solid var(--sun);
    outline-offset: 4px;
  }

  .site-shell {
    min-height: 100vh;
    overflow-x: hidden;
  }

  .site-header {
    background: rgba(255, 253, 243, 0.9);
    border-bottom: 1px solid rgba(13, 93, 111, 0.12);
    backdrop-filter: blur(14px);
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--ocean-900);
    font-weight: 800;
    letter-spacing: 0.02em;
  }

  .brand-mark {
    display: grid;
    width: 3.15rem;
    height: 3.15rem;
    place-items: center;
    overflow: hidden;
    border: 2px solid var(--ocean-800);
    border-radius: 50%;
    background: white;
    box-shadow: 3px 3px 0 var(--ocean-800);
  }

  .brand-mark img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
  }

  .brand small {
    display: block;
    color: var(--ocean-700);
    font-size: 0.72rem;
    font-weight: 700;
    line-height: 1.15;
  }

  .nav-link {
    position: relative;
    color: var(--ocean-900);
    font-size: 0.88rem;
    font-weight: 700;
  }

  .nav-link::after {
    position: absolute;
    right: 0;
    bottom: -0.45rem;
    left: 0;
    height: 3px;
    border-radius: 99px;
    background: var(--coral);
    content: '';
    opacity: 0;
    transform: scaleX(0.5);
    transition: 180ms ease;
  }

  .nav-link:hover::after {
    opacity: 1;
    transform: scaleX(1);
  }

  .hero {
    --hero-curve-offset: 3.25rem;
    position: relative;
    z-index: 1;
    overflow: hidden;
    padding: clamp(3rem, 7vw, 6rem) 0 clamp(4.5rem, 8vw, 7rem);
    color: white;
    background:
      radial-gradient(circle at 76% 20%, rgba(255, 244, 150, 0.3), transparent 14rem),
      linear-gradient(135deg, var(--ocean-900) 0%, var(--ocean-800) 54%, #15969b 100%);
    -webkit-mask-image: radial-gradient(
      ellipse 64% 6rem at 50% calc(100% + var(--hero-curve-offset)),
      transparent 0 calc(100% - 1px),
      #000 100%
    );
    mask-image: radial-gradient(
      ellipse 64% 6rem at 50% calc(100% + var(--hero-curve-offset)),
      transparent 0 calc(100% - 1px),
      #000 100%
    );
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
  }

  .hero::before,
  .hero::after {
    position: absolute;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 50%;
    content: '';
  }

  .hero::before {
    top: -12rem;
    left: -8rem;
    width: 30rem;
    height: 30rem;
  }

  .hero::after {
    right: -7rem;
    bottom: -13rem;
    width: 28rem;
    height: 28rem;
  }

  .hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 0.82fr) minmax(420px, 1.18fr);
    gap: clamp(2rem, 5vw, 4.5rem);
    align-items: center;
  }

  .hero-kicker,
  .section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 1rem;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
  }

  .hero-kicker {
    color: var(--sun);
  }

  .hero-title {
    max-width: 11em;
    margin: 0;
    font-family: 'Zen Maru Gothic', 'Noto Sans JP', sans-serif;
    font-size: clamp(2.65rem, 5.7vw, 5.25rem);
    font-weight: 900;
    line-height: 1.05;
    letter-spacing: -0.045em;
  }

  .hero-title span {
    color: var(--sun);
  }

  .hero-lead {
    max-width: 35rem;
    margin-top: 1.5rem;
    color: rgba(255, 255, 255, 0.84);
    font-size: clamp(1rem, 1.7vw, 1.13rem);
    line-height: 1.9;
  }

  .hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 1.75rem;
  }

  .hero-stat {
    display: flex;
    min-height: 4.5rem;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.17);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
  }

  .hero-stat .material-symbols-outlined {
    color: var(--sun);
  }

  .hero-stat-label {
    display: block;
    color: rgba(255, 255, 255, 0.66);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
  }

  .hero-stat strong {
    display: block;
    font-size: 0.97rem;
    line-height: 1.35;
  }

  .hero-organizer {
    margin-top: 1rem;
    color: rgba(255, 255, 255, 0.76);
    font-size: 0.78rem;
    line-height: 1.7;
  }

  .hero-organizer a {
    color: white;
    font-weight: 700;
    text-decoration: underline;
    text-decoration-color: rgba(255, 244, 150, 0.58);
    text-underline-offset: 0.25rem;
  }

  .hero-organizer a:hover {
    color: var(--sun);
  }

  .hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1.6rem;
    padding: 0.85rem 1.15rem;
    border-radius: 999px;
    color: var(--ocean-900);
    background: var(--sun);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.16);
    font-weight: 800;
    transition: 180ms ease;
  }

  .hero-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.2);
  }

  .map-card {
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 1.5rem;
    background: white;
    box-shadow: 0 26px 60px rgba(0, 27, 35, 0.32);
    transform: rotate(0.35deg);
  }

  .map-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.15rem;
    color: var(--ocean-900);
    background: rgba(255, 253, 243, 0.97);
  }

  .map-card-title {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 800;
  }

  .map-card-title .material-symbols-outlined {
    color: var(--coral);
  }

  .map-card-note {
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 600;
  }

  .map-frame {
    height: clamp(340px, 42vw, 515px);
  }

  .map-frame iframe {
    display: block;
    width: 100%;
    height: 100%;
  }

  .howto-section {
    position: relative;
    z-index: 0;
    margin-top: -3.25rem;
    padding: calc(clamp(4rem, 8vw, 7rem) + 3.25rem) 0 clamp(4rem, 8vw, 7rem);
    background:
      radial-gradient(circle at 88% 18%, rgba(84, 195, 189, 0.2), transparent 20rem),
      white;
  }

  .howto-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(17rem, 0.65fr);
    gap: clamp(1.5rem, 4vw, 3rem);
    align-items: stretch;
  }

  .steps-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .step-card {
    position: relative;
    min-height: 10.5rem;
    padding: 1.35rem;
    overflow: hidden;
    border: 1px solid rgba(13, 93, 111, 0.13);
    border-radius: 1.25rem;
    background: var(--cream);
  }

  .step-number {
    display: grid;
    width: 2.35rem;
    height: 2.35rem;
    margin-bottom: 1rem;
    place-items: center;
    border: 2px solid var(--ocean-800);
    border-radius: 50%;
    color: var(--ocean-900);
    background: var(--sun);
    box-shadow: 2px 2px 0 var(--ocean-800);
    font-weight: 900;
  }

  .step-title {
    color: var(--ocean-900);
    font-size: 1rem;
    font-weight: 900;
    line-height: 1.55;
  }

  .step-note {
    margin-top: 0.65rem;
    color: var(--muted);
    font-size: 0.84rem;
    line-height: 1.75;
  }

  .line-card {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 1.5rem;
    border-radius: 1.5rem;
    color: var(--ink);
    background: #eafff2;
    box-shadow: 0 14px 34px rgba(6, 199, 85, 0.14);
    text-align: center;
  }

  .line-label {
    color: #079447;
    font-size: 0.76rem;
    font-weight: 900;
    letter-spacing: 0.14em;
  }

  .line-title {
    margin-top: 0.35rem;
    color: var(--ocean-900);
    font-family: 'Zen Maru Gothic', 'Noto Sans JP', sans-serif;
    font-size: 1.4rem;
    font-weight: 900;
  }

  .line-qr {
    display: block;
    width: min(100%, 15rem);
    margin: 1.1rem auto;
  }

  .line-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    width: 100%;
    padding: 0.85rem 1rem;
    border-radius: 999px;
    color: white;
    background: #06c755;
    font-size: 0.88rem;
    font-weight: 900;
    transition: filter 160ms ease, transform 160ms ease;
  }

  .line-link:hover {
    filter: brightness(0.93);
    transform: translateY(-2px);
  }

  @media (max-width: 900px) {
    .howto-layout {
      grid-template-columns: 1fr;
    }

    .line-card {
      max-width: 32rem;
      width: 100%;
      margin: 0 auto;
    }
  }

  @media (max-width: 540px) {
    .steps-grid {
      grid-template-columns: 1fr;
    }

    .step-card {
      min-height: auto;
    }
  }

  .content-section {
    position: relative;
    padding: clamp(4rem, 8vw, 7rem) 0;
  }

  .section-heading {
    max-width: 46rem;
    margin: 0 auto clamp(2rem, 5vw, 3.5rem);
    text-align: center;
  }

  .section-kicker {
    color: var(--coral);
  }

  .section-title {
    margin: 0;
    color: var(--ocean-900);
    font-family: 'Zen Maru Gothic', 'Noto Sans JP', sans-serif;
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 900;
    line-height: 1.18;
    letter-spacing: -0.025em;
  }

  .section-copy {
    margin-top: 0.9rem;
    color: var(--muted);
    line-height: 1.8;
  }

  .store-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }

  .store-card {
    display: grid;
    grid-template-columns: 3.5rem 4rem minmax(0, 1fr) auto;
    gap: 1rem;
    align-items: center;
    min-width: 0;
    min-height: 8rem;
    padding: 1.15rem;
    border: 1px solid rgba(13, 93, 111, 0.12);
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.86);
    box-shadow: 0 9px 24px rgba(8, 63, 77, 0.07);
    transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
  }

  .store-photo {
    display: block;
    width: 4rem;
    height: 4rem;
    object-fit: contain;
  }

  .store-card:hover {
    border-color: rgba(13, 93, 111, 0.28);
    box-shadow: 0 16px 34px rgba(8, 63, 77, 0.13);
    transform: translateY(-3px);
  }

  .store-number {
    display: grid;
    width: 3.5rem;
    height: 3.5rem;
    place-items: center;
    border: 2px solid var(--ocean-800);
    border-radius: 50%;
    color: var(--ocean-900);
    background: var(--sun);
    box-shadow: 3px 3px 0 var(--ocean-800);
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 1.1rem;
    font-weight: 800;
  }

  .store-name {
    color: var(--ink);
    font-size: 1.02rem;
    font-weight: 800;
    line-height: 1.45;
  }

  .tojin-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.28rem;
    margin-top: 0.45rem;
    padding: 0.3rem 0.62rem;
    border-radius: 999px;
    color: white;
    background: var(--coral);
    font-size: 0.7rem;
    font-weight: 800;
    line-height: 1;
    letter-spacing: 0.02em;
  }

  .tojin-badge .material-symbols-outlined {
    font-size: 0.9rem;
  }

  .store-address {
    margin-top: 0.35rem;
    color: var(--muted);
    font-size: 0.79rem;
    line-height: 1.6;
  }

  .map-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.28rem;
    padding: 0.64rem 0.78rem;
    border: 1px solid rgba(13, 93, 111, 0.19);
    border-radius: 0.8rem;
    color: var(--ocean-800);
    background: #edfafa;
    font-size: 0.78rem;
    font-weight: 800;
    white-space: nowrap;
    transition: 180ms ease;
  }

  .map-button:hover {
    border-color: var(--ocean-800);
    color: white;
    background: var(--ocean-800);
  }

  .map-button .material-symbols-outlined {
    font-size: 1rem;
  }

  .faq-section {
    padding: clamp(4rem, 8vw, 7rem) 0;
    background: white;
  }

  .faq-list {
    display: grid;
    max-width: 56rem;
    gap: 0.85rem;
    margin: 0 auto;
  }

  .faq-item {
    overflow: hidden;
    border: 1px solid rgba(13, 93, 111, 0.14);
    border-radius: 1.1rem;
    background: var(--cream);
    box-shadow: 0 8px 22px rgba(8, 63, 77, 0.06);
  }

  .faq-item summary {
    position: relative;
    display: flex;
    min-height: 4rem;
    align-items: center;
    gap: 1rem;
    padding: 1rem 3.5rem 1rem 1.2rem;
    color: var(--ocean-900);
    cursor: pointer;
    font-size: 0.98rem;
    font-weight: 800;
    line-height: 1.6;
    list-style: none;
  }

  .faq-item summary::-webkit-details-marker {
    display: none;
  }

  .faq-item summary::after {
    position: absolute;
    top: 50%;
    right: 1.2rem;
    display: grid;
    width: 1.8rem;
    height: 1.8rem;
    place-items: center;
    border-radius: 50%;
    color: white;
    background: var(--ocean-800);
    content: '+';
    font-size: 1.2rem;
    font-weight: 500;
    line-height: 1;
    transform: translateY(-50%);
  }

  .faq-item[open] summary::after {
    content: '−';
  }

  .faq-item[open] summary {
    border-bottom: 1px solid rgba(13, 93, 111, 0.1);
    background: rgba(84, 195, 189, 0.08);
  }

  .faq-answer {
    padding: 1rem 1.2rem 1.2rem;
    color: var(--muted);
    font-size: 0.9rem;
    line-height: 1.85;
  }

  .faq-answer a {
    color: var(--ocean-800);
    font-weight: 800;
    text-decoration: underline;
    text-underline-offset: 0.2rem;
  }

  .sponsors-section {
    padding: clamp(4rem, 8vw, 7rem) 0;
    background:
      linear-gradient(rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0.75)),
      repeating-linear-gradient(135deg, rgba(84, 195, 189, 0.12) 0 2px, transparent 2px 18px);
  }

  .sponsor-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.8rem;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .sponsor-card {
    display: flex;
    min-height: 5rem;
    align-items: center;
    padding: 1rem 1.1rem;
    border: 1px solid rgba(13, 93, 111, 0.12);
    border-radius: 1rem;
    color: var(--ink);
    background: white;
    box-shadow: 0 7px 20px rgba(8, 63, 77, 0.06);
    font-size: 0.9rem;
    font-weight: 700;
  }

  .sponsor-link {
    display: flex;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    color: var(--ocean-800);
    transition: color 160ms ease;
  }

  .sponsor-link:hover {
    color: var(--coral);
  }

  .sponsor-link .material-symbols-outlined {
    flex: 0 0 auto;
    font-size: 1rem;
  }

  .site-footer {
    color: rgba(255, 255, 255, 0.76);
    background: var(--ocean-900);
  }

  .footer-title {
    color: white;
    font-family: 'Zen Maru Gothic', 'Noto Sans JP', sans-serif;
    font-size: 1.1rem;
    font-weight: 900;
  }

  .footer-title a {
    text-decoration: underline;
    text-decoration-color: rgba(255, 255, 255, 0.28);
    text-underline-offset: 0.25rem;
  }

  .footer-title a:hover {
    color: var(--sun);
  }

  .footer-label {
    margin-bottom: 0.3rem;
    color: var(--sun);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.16em;
  }

  .footer-note {
    max-width: 44rem;
    margin: 1rem auto 0;
    font-size: 0.76rem;
    line-height: 1.8;
  }

  .footer-updated {
    margin-top: 0.5rem;
    color: rgba(255, 255, 255, 0.58);
    font-size: 0.7rem;
  }

  .floating-top {
    position: fixed;
    right: max(1rem, env(safe-area-inset-right));
    bottom: max(1rem, env(safe-area-inset-bottom));
    z-index: 45;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.72rem 0.92rem;
    border: 2px solid white;
    border-radius: 999px;
    color: white;
    background: var(--ocean-800);
    box-shadow: 0 8px 24px rgba(8, 63, 77, 0.26);
    font-size: 0.76rem;
    font-weight: 900;
    transition: background 160ms ease, transform 160ms ease;
  }

  .floating-top:hover {
    background: var(--ocean-900);
    transform: translateY(-2px);
  }

  .floating-top .material-symbols-outlined {
    font-size: 1rem;
  }

  @media (min-width: 1280px) {
    .store-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }
  }

  @media (max-width: 900px) {
    .hero-grid {
      grid-template-columns: 1fr;
    }

    .hero-copy {
      max-width: 42rem;
    }

    .map-card {
      transform: none;
    }

    .sponsor-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  @media (max-width: 700px) {
    .store-grid {
      grid-template-columns: 1fr;
    }

    .store-card {
      grid-template-columns: 3.25rem 4rem minmax(0, 1fr);
      align-items: start;
      min-height: auto;
    }

    .store-number,
    .store-photo {
      width: 3.25rem;
      height: 3.25rem;
      grid-row: 1 / span 2;
    }

    .store-photo {
      width: 4rem;
      height: 4rem;
    }

    .map-button {
      grid-column: 3;
      justify-self: start;
    }

  }

  @media (max-width: 540px) {
    .hero {
      padding-top: 2.5rem;
    }

    .hero-title {
      font-size: clamp(2.45rem, 12vw, 3.6rem);
    }

    .hero-stat {
      width: 100%;
    }

    .map-card-header {
      align-items: flex-start;
      flex-direction: column;
    }

    .map-frame {
      height: 370px;
    }

    .sponsor-grid {
      grid-template-columns: 1fr;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    html {
      scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
      transition-duration: 0.01ms !important;
    }
  }