* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    color: #102033;
    background:
        radial-gradient(circle at 18% 12%, rgba(19, 163, 165, 0.22), transparent 28%),
        radial-gradient(circle at 88% 18%, rgba(20, 86, 217, 0.18), transparent 30%),
        linear-gradient(135deg, #eef5fb 0%, #f8fafc 52%, #e8eef6 100%);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

button,
input {
    font: inherit;
}

.login-shell {
    display: grid;
    place-items: center;
    min-height: 100vh;
    padding: 28px 16px;
}

.login-panel {
    width: min(100%, 430px);
    padding: 30px;
    border: 1px solid rgba(22, 72, 112, 0.12);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 26px 70px rgba(15, 39, 71, 0.18);
}

.brand p {
    margin: 0 0 8px;
    color: #136f96;
    font-size: 13px;
    font-weight: 900;
}

.brand h1 {
    margin: 0;
    color: #0b2540;
    font-size: 30px;
    line-height: 1.2;
}

.brand span {
    display: block;
    margin-top: 10px;
    color: #5a6d82;
    line-height: 1.6;
}

.login-form {
    display: grid;
    gap: 16px;
    margin-top: 28px;
}

.login-form label {
    display: grid;
    gap: 8px;
    color: #24364a;
    font-size: 14px;
    font-weight: 900;
}

.login-form input {
    height: 48px;
    width: 100%;
    border: 1px solid #d6e1ec;
    border-radius: 14px;
    padding: 0 14px;
    color: #102033;
    background: #f7fafc;
    outline: none;
}

.login-form input:focus {
    border-color: #1677ff;
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(22, 119, 255, 0.12);
}

.login-form button {
    height: 50px;
    border: 0;
    border-radius: 14px;
    color: #ffffff;
    background: linear-gradient(135deg, #1456d9, #13a3a5);
    box-shadow: 0 14px 26px rgba(20, 86, 217, 0.24);
    font-weight: 900;
    cursor: pointer;
}

.account-tip {
    margin-top: 20px;
    padding: 14px;
    border-radius: 16px;
    background: #f1f6fb;
    color: #5a6d82;
    font-size: 13px;
    line-height: 1.7;
}

.account-tip strong {
    color: #102033;
}

.account-tip p {
    margin: 4px 0 0;
}

.toast {
    position: fixed;
    left: 50%;
    bottom: 24px;
    max-width: min(86vw, 360px);
    padding: 11px 15px;
    border-radius: 999px;
    color: #ffffff;
    background: #182334;
    transform: translateX(-50%);
    box-shadow: 0 16px 34px rgba(15, 23, 42, 0.24);
}