:root {
/* 颜色 */
--white: #e9e9e9;
--gray: #333;
--pink: #ff99cc;
--pink-dark: #ff6699;
--lightpink: #ffcce6;
/* 圆角 */
--button-radius: 0.7rem;
/* 大小 */
--max-width: 758px;
--max-height: 420px;
font-size: 16px;
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
}
body {
align-items: center;
background-color: var(--white);
background-attachment: fixed;
background-position: center;
background-repeat: no-repeat;
background-size: cover;
display: grid;
height: 100vh;
place-items: center;
.form_title {
font-weight: 300;
margin: 0;
margin-bottom: 1.25rem;
.link {
color: var(--gray);
font-size: 0.9rem;
margin: 1.5rem 0;
text-decoration: none;
.container {
border-radius: var(--button-radius);
box-shadow: 0 0.9rem 1.7rem rgba(0, 0, 0, 0.25), 0 0.7rem 0.7rem rgba(0, 0, 0, 0.22);
height: var(--max-height);
max-width: var(--max-width);
overflow: hidden;
position: relative;
width: 100%;
background-color: rgba(255, 255, 255, 0.4);
.container_form {
height: 100%;
position: absolute;
top: 0;
transition: all 0.6s ease-in-out;
.container--signin {
left: 0;
width: 50%;
z-index: 5;
.container.right-panel-active .container--signin {
transform: translateX(100%);
.container--signup {
opacity: 0;
z-index: 4;
.container.right-panel-active .container--signup {
animation: show 0.6s;
opacity: 1;
z-index: 8;
.container_overlay {
left: 50%;
transition: transform 0.6s ease-in-out;
z-index: 100;
.container.right-panel-active .container_overlay {
transform: translateX(-100%);
.overlay {
background-color: rgba(255, 255, 255, 0.25);
left: -100%;
transform: translateX(0);
width: 200%;
.container.right-panel-active .overlay {
transform: translateX(50%);
.overlay_panel {
display: flex;
flex-direction: column;
justify-content: center;
text-align: center;
.overlay--left {
transform: translateX(-20%);
.container.right-panel-active .overlay--left {
.overlay--right {
right: 0;
.container.right-panel-active .overlay--right {
transform: translateX(20%);
.btn {
background-color: var(--pink);
background-image: linear-gradient(90deg, var(--pink) 0%, var(--lightpink) 74%);
border-radius: 20px;
border: 0.2px solid var(--pink-dark);
color: var(--white);
cursor: pointer;
font-size: 0.8rem;
font-weight: bold;
letter-spacing: 0.1rem;
padding: 0.9rem 4rem;
text-transform: uppercase;
transition: transform 80ms ease-in;
.form > .btn {
margin-top: 1.5rem;
.btn:active {
transform: scale(0.95);
.btn:focus {
outline: none;
.form {
padding: 0 3rem;
.input {
background-color: #fff;
border: none;
padding: 0.9rem 0.9rem;
margin: 0.5rem 0;
@keyframes show {
0%, 49.99% {
50%, 100% {
.slidershow {
width: 100vw;
.slidershow--image {
background: no-repeat 50% 50%;
animation-name: kenburns;
animation-timing-function: linear;
animation-iteration-count: infinite;
animation-duration: 16s;
transform: scale(1.2);
.slidershow--image:nth-child(1) {
animation-name: kenburns-1;
z-index: 3;
.slidershow--image:nth-child(2) {
animation-name: kenburns-2;
z-index: 2;
.slidershow--image:nth-child(3) {
animation-name: kenburns-3;
z-index: 1;
.slidershow--image:nth-child(4) {
animation-name: kenburns-4;
z-index: 0;
@keyframes kenburns-1 {
0% {
1.5625% {
23.4375% {
26.5625% {
transform: scale(1);
100% {
@keyframes kenburns-2 {
48.4375% {
51.5625% {
@keyframes kenburns-3 {
73.4375% {
76.5625% {
@keyframes kenburns-4 {
98.4375% {