.contact-page {
    min-height: 100vh;
    margin: 0;
    background:
        linear-gradient(rgba(28, 45, 66, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(28, 45, 66, 0.025) 1px, transparent 1px),
        #f7f7f4;
    background-size: 72px 72px;
    color: var(--color-biwa-blue);
}

.contact-page-header {
    width: 100%;
    min-height: 82px;
    padding: 20px clamp(24px, 5vw, 80px);
    border-bottom: 1px solid rgba(28, 45, 66, 0.1);
    background: rgba(249, 249, 247, 0.92);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.contact-logo {
    display: inline-flex;
    align-items: center;
}

.contact-logo img {
    width: clamp(132px, 14vw, 190px);
    height: auto;
}

.contact-header-actions,
.contact-lang-switch {
    display: flex;
    align-items: center;
}

.contact-header-actions {
    gap: clamp(18px, 3vw, 44px);
}

.contact-back-link {
    color: var(--color-biwa-blue);
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-decoration: none;
}

.contact-back-link::before {
    content: "←";
    margin-right: 9px;
}

.contact-lang-switch {
    gap: 4px;
}

.contact-lang-btn {
    min-width: 36px;
    padding: 8px 7px;
    border: 0;
    border-bottom: 1px solid transparent;
    background: transparent;
    color: rgba(28, 45, 66, 0.5);
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.7rem;
    letter-spacing: 0.06em;
}

.contact-lang-btn:hover,
.contact-lang-btn:focus-visible,
.contact-lang-btn.active {
    border-bottom-color: var(--color-sand-gold);
    color: var(--color-biwa-blue);
}

.contact-main {
    width: min(1120px, calc(100% - 48px));
    margin: 0 auto;
    padding: clamp(80px, 10vw, 140px) 0 clamp(80px, 10vw, 140px);
}

.contact-intro {
    margin-bottom: 54px;
    text-align: center;
}

.contact-kicker {
    display: block;
    margin-bottom: 20px;
    color: var(--color-sand-gold);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.18em;
}

.contact-title {
    margin: 0;
    color: var(--color-biwa-blue);
    font-family: var(--font-serif);
    font-size: clamp(2.25rem, 5vw, 3.6rem);
    font-weight: 400;
    letter-spacing: 0.12em;
}

.contact-title-line {
    width: 56px;
    height: 1px;
    margin: 26px auto 0;
    background: var(--color-sand-gold);
}

.inquiry-form-container {
    padding: clamp(38px, 6vw, 76px);
    border: 1px solid rgba(28, 45, 66, 0.1);
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 18px 60px rgba(28, 45, 66, 0.04);
}

.inquiry-form {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.form-row-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 30px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.form-group label {
    color: var(--color-biwa-blue);
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px 18px;
    border: 1px solid rgba(28, 45, 66, 0.14);
    border-radius: 0;
    outline: none;
    background: var(--color-pure-white);
    color: var(--color-text-dark);
    font-family: var(--font-sans);
    font-size: 0.94rem;
    line-height: 1.6;
    transition: border-color 180ms ease, box-shadow 180ms ease;
}

.form-group textarea {
    min-height: 190px;
    resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(28, 45, 66, 0.34);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-sand-gold);
    box-shadow: 0 0 0 4px rgba(197, 168, 128, 0.1);
}

.form-select {
    appearance: none;
    padding-right: 46px !important;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg%20width%3D%2224%22%20height%3D%2224%22%20viewBox%3D%220%200%2024%2024%22%20fill%3D%22none%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%3E%3Cpath%20d%3D%22M7%2010L12%2015L17%2010%22%20stroke%3D%22%231C2D42%22%20stroke-width%3D%221.5%22%20stroke-linecap%3D%22round%22%20stroke-linejoin%3D%22round%22%2F%3E%3C%2Fsvg%3E");
    background-position: right 14px center;
    background-repeat: no-repeat;
    background-size: 18px;
}

.form-status-msg {
    min-height: 24px;
    text-align: center;
    font-size: 0.82rem;
    line-height: 1.6;
}

.form-submit-wrap {
    padding-top: 10px;
    text-align: center;
}

.form-submit-wrap .cta-btn {
    min-width: 210px;
    border: 0;
    cursor: pointer;
}

.form-submit-wrap .cta-btn:disabled {
    cursor: wait;
    opacity: 0.58;
}

.contact-footer {
    padding: 28px clamp(24px, 5vw, 80px);
    background: var(--color-biwa-blue);
    color: rgba(255, 255, 255, 0.65);
    display: flex;
    justify-content: space-between;
    gap: 24px;
    font-size: 0.66rem;
    line-height: 1.6;
    letter-spacing: 0.06em;
}

.contact-footer-brand {
    color: var(--color-pure-white);
    letter-spacing: 0.12em;
}

@media (max-width: 720px) {
    .contact-page-header {
        min-height: 72px;
        padding: 16px 20px;
    }

    .contact-header-actions {
        gap: 10px;
    }

    .contact-back-link {
        font-size: 0;
    }

    .contact-back-link::before {
        margin: 0;
        font-size: 1rem;
    }

    .contact-lang-btn {
        min-width: 30px;
        padding-inline: 4px;
    }

    .contact-main {
        width: min(100% - 28px, 1120px);
        padding-top: 62px;
    }

    .contact-intro {
        margin-bottom: 38px;
    }

    .inquiry-form-container {
        padding: 32px 20px;
    }

    .form-row-2 {
        grid-template-columns: 1fr;
        gap: 26px;
    }

    .contact-footer {
        flex-direction: column;
    }
}