:root {
    --color-bg: #fdfcfb;
    --color-text: #4a3f39;
    --color-sub: #5e534d;
    --color-accent: #b89c92;
    --color-line: #d8c9c2;
    --color-btn: #8e6f63;
    --color-btn-hover: #7a5e53;
    --color-btn-text: #ffffff;
    --font-en: "Jost", "Helvetica Neue", Arial, sans-serif;
    --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
    --font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  }

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

  html,
  body {
    margin: 0;
    padding: 0;
  }

  body {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-weight: 300;
    -webkit-font-smoothing: antialiased;
  }

  .closed {
    width: 100%;
    max-width: 640px;
    padding: 80px 24px;
    text-align: center;
  }

  /* ロゴ（画像ロゴに差し替える場合は .closed__logo 内を <img> に置き換え） */
  .closed__logo {
    margin: 0;
    font-family: var(--font-en);
    font-weight: 300;
    font-size: 40px;
    letter-spacing: 0.04em;
    line-height: 1;
  }

  .closed__logo img {
    display: block;
    max-width: 180px;
    height: auto;
    margin: 0 auto;
  }

  .closed__divider {
    width: 48px;
    height: 1px;
    margin: 40px auto;
    border: 0;
    background: var(--color-line);
  }

  .closed__label {
    margin: 0 0 24px;
    font-family: var(--font-en);
    font-weight: 400;
    font-size: 13px;
    letter-spacing: 0.3em;
    color: var(--color-accent);
  }

  .closed__title {
    margin: 0 0 40px;
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: 38px;
    line-height: 1.6;
    letter-spacing: 0.06em;
  }

  .closed__text {
    margin: 0 0 24px;
    font-size: 15px;
    line-height: 2;
    letter-spacing: 0.06em;
    color: var(--color-sub);
  }

  .closed__text:last-of-type {
    margin-bottom: 48px;
  }

  .closed__btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 340px;
    min-height: 64px;
    margin: 0 auto;
    padding: 0 48px;
    border-radius: 999px;
    background: var(--color-btn);
    color: var(--color-btn-text);
    font-weight: 500;
    font-size: 16px;
    letter-spacing: 0.1em;
    text-decoration: none;
    transition: background-color 0.2s ease;
  }

  .closed__btn::after {
    content: "";
    position: absolute;
    right: 28px;
    top: 50%;
    width: 8px;
    height: 8px;
    border-top: 1.5px solid currentColor;
    border-right: 1.5px solid currentColor;
    transform: translateY(-50%) rotate(45deg);
  }

  .closed__btn:hover {
    background: var(--color-btn-hover);
  }

  .closed__btn:focus-visible {
    outline: 2px solid var(--color-btn);
    outline-offset: 4px;
  }

  .sp-only {
    display: none;
  }

  /* スマートフォン */
  @media (max-width: 600px) {
    .closed {
      padding: 64px 20px;
    }

    .closed__logo img {
      max-width: 140px;
    }

    .closed__divider {
      margin: 32px auto;
    }

    .closed__label {
      font-size: 11px;
      margin-bottom: 20px;
    }

    .closed__title {
      font-size: 26px;
      margin-bottom: 32px;
    }

    .closed__text {
      font-size: 14px;
    }

    .closed__text:last-of-type {
      margin-bottom: 40px;
    }

    .closed__btn {
      min-height: 56px;
      font-size: 15px;
    }

    .sp-only {
      display: inline;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    .closed__btn {
      transition: none;
    }
  }