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

html,
body {
    margin: 0;
    padding: 0;
    background: #f3f5f7;
    color: #222;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

body {
    min-height: 100vh;
}

.page {
    display: flex;
    flex-direction: column;
    max-width: 480px;
    margin: 0 auto;
    min-height: 100vh;
    background: #f3f5f7;
}

.hero {
    display: block;
    position: relative;
    z-index: 1;
    width: 100%;
    height: auto;
    object-fit: contain;
    vertical-align: middle;
}

.panel {
    position: relative;
    z-index: 2;
    margin: 0;
    padding: 16px 14px 14px;
    background: #fff;
    border-radius: 0;
    box-shadow: none;
}

.form {
    margin: 0;
}

.field {
    display: block;
    width: 100%;
    height: 36px;
    padding: 0 12px;
    border: 1px solid #e2e2e2;
    border-radius: 4px;
    background: #fff;
    color: #222;
    font-size: 14px;
    outline: none;
}

.field::placeholder {
    color: #c4c4c4;
}

.field:focus {
    border-color: #0b1340;
}

.btn {
    display: block;
    width: 100%;
    height: 36px;
    margin-top: 12px;
    border: 0;
    border-radius: 4px;
    background: #0b1340;
    color: #fff;
    font-size: 14px;
    letter-spacing: 1px;
    cursor: pointer;
}

.btn:disabled {
    opacity: 0.7;
    cursor: wait;
}

.result {
    min-height: 110px;
    margin-top: 12px;
    padding: 10px 12px;
    border: 1px solid #e2e2e2;
    border-radius: 4px;
    background: #fff;
    color: #c4c4c4;
    font-size: 14px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
}

.result.is-first {
    color: #167a3a;
}

.result.is-repeat {
    color: #b45309;
}

.result.is-error,
.result.is-not_found {
    color: #c81e1e;
}

.foot-banner {
    display: block;
    position: relative;
    z-index: 1;
    width: 100%;
    height: auto;
    object-fit: contain;
    margin-top: 0;
    vertical-align: middle;
}

.guide {
    margin: 20px 4px 0;
}

.guide-title {
    margin: 0 0 10px;
    font-size: 16px;
    font-weight: 600;
    color: #222;
}

.guide-list {
    margin: 0;
    padding-left: 22px;
    color: #333;
    font-size: 14px;
    line-height: 1.8;
}

.guide-list li + li {
    margin-top: 6px;
}

.guide-list em {
    font-style: normal;
    color: #d11a2a;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}