* {
    box-sizing: border-box;
}

:root {
    font-family:
        "Microsoft YaHei",
        "PingFang SC",
        Arial,
        sans-serif;

    color: #5f4b55;
    background: #fff6fa;
}

body {
    display: grid;
    min-height: 100vh;
    grid-template-rows: auto 1fr auto;
    margin: 0;
    background:
        radial-gradient(circle at top right,
            #f9dbe7 0,
            transparent 34%),
        #fff6fa;
}

.site-header {
    display: flex;
    min-height: 72px;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 0 28px;
    border-bottom: 1px solid #efd2de;
    background: rgba(255, 255, 255, 0.88);
}

.home-link {
    display: inline-flex;
    min-height: 40px;
    align-items: center;
    justify-content: center;
    padding: 0 18px;
    color: #815f6d;
    font-weight: 700;
    text-decoration: none;
    border: 1px solid #e5b7c8;
    border-radius: 999px;
    background: #ffffff;
}

.home-link:hover {
    color: #ffffff;
    background: #d77da0;
    border-color: #d77da0;
}

.site-name {
    color: #725763;
    font-weight: 700;
}

.login-main {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px 20px;
}

.login-card {
    width: min(100%, 430px);
    padding: 38px;
    border: 1px solid #efd4df;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 18px 50px rgba(174, 112, 137, 0.14);
}

.login-heading {
    margin-bottom: 30px;
}

.login-label {
    margin: 0 0 10px;
    color: #d287a4;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
}

.login-heading h1 {
    margin: 0;
    color: #604751;
    font-size: 32px;
}

.login-description {
    margin: 12px 0 0;
    color: #8c707c;
    font-size: 15px;
    line-height: 1.7;
}

.login-form {
    display: grid;
    gap: 12px;
}

.login-form label {
    color: #725763;
    font-size: 15px;
    font-weight: 700;
}

.login-form input {
    width: 100%;
    min-height: 48px;
    margin-bottom: 8px;
    padding: 0 14px;
    color: #5f4b55;
    font: inherit;
    background: #fffafd;
    border: 1px solid #e8c8d4;
    border-radius: 12px;
    outline: none;
}

.login-form input:focus {
    border-color: #d77da0;
    box-shadow: 0 0 0 3px rgba(215, 125, 160, 0.16);
}

.login-message {
    min-height: 22px;
    margin: 0;
    color: #b44f67;
    font-size: 14px;
    line-height: 1.5;
}

.login-message.success {
    color: #397a56;
}

#loginButton,
#changePasswordButton {
    min-height: 50px;
    color: #ffffff;
    font: inherit;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    background: #d77da0;
    border: 0;
    border-radius: 12px;
}

#loginButton:hover,
#changePasswordButton:hover {
    background: #c96e92;
}

#loginButton:disabled,
#changePasswordButton:disabled {
    cursor: wait;
    opacity: 0.65;
}

.login-help {
    margin: 22px 0 0;
    color: #9b7a87;
    font-size: 14px;
    line-height: 1.6;
    text-align: center;
}

footer {
    padding: 20px;
    color: #a27c8c;
    text-align: center;
}

footer p {
    margin: 0;
}

@media (max-width: 600px) {
    .site-header {
        min-height: 64px;
        padding: 0 16px;
    }

    .home-link {
        min-height: 38px;
        padding: 0 14px;
        font-size: 14px;
    }

    .site-name {
        font-size: 14px;
    }

    .login-main {
        align-items: flex-start;
        padding: 32px 16px;
    }

    .login-card {
        padding: 28px 22px;
        border-radius: 20px;
    }

    .login-heading h1 {
        font-size: 28px;
    }
}