* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    height: 100vh;
    width: 100vw;
    font-family: 'Source Han Sans SC';
}

a {
    text-decoration: none;
}

body {
    background-repeat: no-repeat;
    background-image: url(/Images/new-login/right-icon.png), url(/images/new-login/top-left-2.png), url(/Images/new-login/top-left-1.png), url(/images/new-login/bottom-right-2.png), url(/Images/new-login/bottom-right-1.png);
    background-size: auto 58.64%, auto 54%, auto 74%, auto 100%, auto 100%;
    background-position: right 3% bottom 15%, left top, left top, right bottom, right bottom;
    position: relative;
    padding: 30vh 14vw;
    user-select: none;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    -khtml-user-select: none;
}

.logo {
    position: absolute;
    top: 28px;
    left: 28px;
}

.logo img {
    width: 172px;
}

.right-btns {
    position: absolute;
    right: 30px;
    top: 30px;
    display: flex;
    gap: 13px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.right-btns .icon {
    width: 42px;
    height: 42px;
    display: block;
}

.right-btns .text {
    font-size: 26px;
    color: #fff;
}

.form {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 30vw;
}

.form-title {
    font-size: 40px;
    margin-bottom: 30px;
}

.form-input-box {
    height: 70px;
    width: 100%;
    border-radius: 35px;
    background-color: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 35px 0 60px;
    background-repeat: no-repeat;
    background-position: left 20px center;
    background-size: auto 30px;
    position: relative;
}

.form-input-box .error {
    position: absolute;
    bottom: -20px;
    font-size: 14px;
    color: #ff0000;
}

.form-input-box.username {
    background-image: url(/Images/new-login/user-icon.png);
    margin-bottom: 22px;
}

.form-input-box.password {
    background-image: url(/Images/new-login/pwd-icon.png);
    margin-bottom: 10px;
}

.form-input-box .form-input {
    background: #f0f0f0;
    border: none;
    outline: none;
    height: 100%;
    width: 100%;
    font-size: 28px;
}

.forgot-pwd {
    width: 100%;
    height: 30px;
    line-height: 30px;
    text-align: right;
    font-size: 20px;
    margin-bottom: 30px;
}

.form .login-btn {
    width: 100%;
    height: 64px;
    border: none;
    border-radius: 32px;
    background-image: linear-gradient(to right, #6c7cfb, #2c9ff1);
    font-size: 28px;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}

.left-btns {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    display: flex;
    align-items: center;
}

.left-btns .system-links {
    width: 100px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    background-color: #fff;
    padding: 12px;
    border-top-right-radius: 12px;
    border-bottom-right-radius: 12px;
    border: 1px solid #b9bbce;
    border-left: none;
    box-shadow: 5px 5px 0px #00000029;
}

.left-btns .system-links .system-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.left-btns .system-links .system-link .system-icon {
    width: 60px;
    height: 60px;
    border-radius: 18px;
    background-position: center center;
    background-repeat: no-repeat;
}

.left-btns .system-links .system-link .system-icon.english {
    background-color: #4083f9;
    background-image: url(/Images/new-login/icon-english.png), linear-gradient(135deg, #fff0 55%, #ffffff33 55%, #ffffff00 100%);
    background-size: 38px auto, 100% 100%;
}

.left-btns .system-links .system-link .system-icon.math {
    background-color: #ff733c;
    background-image: url(/Images/new-login/icon-math.png), linear-gradient(135deg, #fff0 55%, #ffffff33 55%, #ffffff00 100%);
    background-size: auto 38px, 100% 100%;
}

.left-btns .system-links .system-link .system-icon.chinese {
    background-color: #27bea3;
    background-image: url(/Images/new-login/icon-chinese.png), linear-gradient(135deg, #fff0 55%, #ffffff33 55%, #ffffff00 100%);
    background-size: 40px auto, 100% 100%;
}

.left-btns .system-links .system-link .system-icon.physics {
    background-color: #6d7cfb;
    background-image: url(/Images/new-login/icon-physics.png), linear-gradient(135deg, #fff0 55%, #ffffff33 55%, #ffffff00 100%);
    background-size: auto 38px, 100% 100%;
}

.left-btns .system-links .system-link .system-icon.chemistry {
    background-color: #ba6dfb;
    background-image: url(/Images/new-login/icon-chemistry.png), linear-gradient(135deg, #fff0 55%, #ffffff33 55%, #ffffff00 100%);
    background-size: auto 38px, 100% 100%;
}

.left-btns .system-links .system-link .system-icon.login {
    background-color: #8fbe2a;
    background-image: url(/Images/new-login/icon-new.png), linear-gradient(135deg, #fff0 55%, #ffffff33 55%, #ffffff00 100%);
    background-size: 40px auto, 100% 100%;
}

.left-btns .system-links .system-link .system-icon.back-home {
    background-color: #ff8a00;
    background-image: url(/Images/new-login/icon-back.png), linear-gradient(135deg, #fff0 55%, #ffffff33 55%, #ffffff00 100%);
    background-size: 40px auto, 100% 100%;
}

.left-btns .system-links .system-link .system-text {
    font-size: 16px;
    line-height: 16px;
    margin-top: 10px;
    color: #000;
}