:root {
    --bg: #f7f7ed;
    --card: #fff;
    --fg: #222;
    --muted: #666;
    --pri: #0a7c7c;
    --pri-hover: #086565;
    --danger: #b00020;
}

* {
    box-sizing: border-box
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans JP", sans-serif;
    background: var(--bg);
    color: var(--fg);
    line-height: 1.8
}

.container {
    max-width: 720px;
    margin: 2rem auto;
    padding: 0 1rem;

}

h1 {
    font-size: 1.6rem;
    margin: 1rem 0 1.25rem
}

.contact-container {
    --h1-illust: url("../images/watage03.png");
    --h1-illust-w: 40px;
    --h1-illust-ratio: 1 / 1;
}

.contact-container h1.has-illust {
    display: flex;
    align-items: center;
    gap: .6rem;
}

.contact-container h1.has-illust::before {
    content: "";
    inline-size: clamp(28px, 4vw, var(--h1-illust-w, 40px));
    block-size: auto;
    aspect-ratio: var(--h1-illust-ratio, 1 / 1);
    background-image: var(--h1-illust, none);
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    flex: 0 0 auto;
}

.card {
    background: var(--card);
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, .06)
}

.field {
    margin: 1rem 0
}

label {
    font-weight: 600;
    display: block;
    margin-bottom: .4rem
}

.req {
    color: var(--danger);
    font-weight: 700;
    margin-left: .25rem
}

input[type="text"],
input[type="email"],
select,
textarea {
    width: 100%;
    padding: .75rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    background: #fff
}

textarea {
    resize: vertical;
    min-height: 180px
}

.policy {
    margin: 1.25rem 0
}

.policy label {
    display: flex;
    gap: .5rem;
    align-items: center;
    font-weight: 500
}

.policy .policy-link {
    margin: .25rem 0 0 .5rem;
    color: var(--muted);
    font-size: .9rem
}

.actions {
    display: flex;
    gap: .75rem;
    margin-top: 1.25rem
}

.btn {
    display: inline-block;
    padding: .7rem 1rem;
    border-radius: 999px;
    text-decoration: none;
    border: 0;
    cursor: pointer;
    background: #e9e9e9
}

.btn.primary {
    background: var(--pri);
    color: #fff;
    font-weight: 700
}

.btn.primary:disabled {
    opacity: .5;
    cursor: not-allowed
}

.btn.primary:not(:disabled):hover {
    background: var(--pri-hover)
}

.alert {
    background: #fff4f4;
    border: 1px solid #ffd6d6;
    color: #6b0000;
    padding: .75rem 1rem;
    border-radius: 8px;
    margin: 0 0 1rem
}

.alert ul {
    margin: .5rem 0 0 1rem
}

.confirm {
    margin: .5rem 0 0
}

.confirm dt {
    font-weight: 700;
    margin-top: .75rem
}

.confirm dd {
    margin: .25rem 0 0;
    white-space: pre-wrap
}