* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-weight: 300;
}

body {
  font-family: Source Sans Pro, sans-serif;
  color: #fff;
}

a {
  text-decoration: none;
  color: inherit;          /* 继承父元素颜色（取消蓝色） */
}

.wrapper {
  background: #01a982;
  background: linear-gradient(to bottom right, #01a982 0, #60ae80 100%);
  overflow: hidden;
  padding: 0 32px;
}

.bg-bubbles,
.wrapper {
  position: absolute;
  left: 0;
  width: 100%;
  height: 100%;
}

.bg-bubbles {
  top: 0;
  z-index: 1;
}

.bg-bubbles li {
  position: absolute;
  list-style: none;
  display: block;
  width: 40px;
  height: 40px;
  background-color: hsla(0, 0%, 100%, 0.15);
  bottom: -160px;
  animation: square 25s infinite;
  transition-timing-function: linear;
}

.bg-bubbles li:nth-child(1) {
  left: 10%;
}

.bg-bubbles li:nth-child(2) {
  left: 20%;
  width: 80px;
  height: 80px;
  animation-delay: 2s;
  animation-duration: 17s;
}

.bg-bubbles li:nth-child(3) {
  left: 25%;
  animation-delay: 4s;
}

.bg-bubbles li:nth-child(4) {
  left: 40%;
  width: 60px;
  height: 60px;
  animation-duration: 22s;
  background-color: hsla(0, 0%, 100%, 0.25);
}

.bg-bubbles li:nth-child(5) {
  left: 70%;
}

.bg-bubbles li:nth-child(6) {
  left: 80%;
  width: 120px;
  height: 120px;
  animation-delay: 3s;
  background-color: hsla(0, 0%, 100%, 0.2);
}

.bg-bubbles li:nth-child(7) {
  left: 32%;
  width: 160px;
  height: 160px;
  animation-delay: 7s;
}

.bg-bubbles li:nth-child(8) {
  left: 55%;
  width: 20px;
  height: 20px;
  animation-delay: 15s;
  animation-duration: 40s;
}

.bg-bubbles li:nth-child(9) {
  left: 25%;
  width: 10px;
  height: 10px;
  animation-delay: 2s;
  animation-duration: 40s;
  background-color: hsla(0, 0%, 100%, 0.3);
}

.bg-bubbles li:nth-child(10) {
  left: 90%;
  width: 160px;
  height: 160px;
  animation-delay: 11s;
}

@keyframes square {
  0% {
    transform: translateY(0);
  }
  to {
    transform: translateY(-700px) rotate(600deg);
  }
}

.main {
  padding: 20px 0 10px;
  z-index: 999;
  position: relative;
}

.main h1 {
  font-size: 40px;
  text-align: center;
  color: #fff;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.content {
  margin: 0 auto;
  max-width: 430px;
  background: #fff;
  border-radius: 5px;
}

p.footer {
  font-size: 16px;
  text-align: center;
  color: #fff;
  font-weight: 500;
  margin-top: 10px;
}

.content-top h2 {
  font-size: 22px;
  color: #fff;
  text-align: center;
  background: #02a982;
  padding: 12px 0;
  border-radius: 5px;
}

.content-top p {
  text-align: center;
  font-size: 16px;
  color: #000;
}

.content-top ul li {
  display: block;
  font-size: 15px;
  color: #000;
  line-height: 1.6em;
  padding: 1em 0;
  border-bottom: 1px solid #e2e0de;
}

.content-top ul li a {
  color: #fff;
  font-weight: 400;
}

.content-top {
  padding: 1.6em;
}

@media (max-width: 1500px) {
  .container h1 {
    font-size: 60px;
  }
  form button,
  form input {
    width: 500px;
  }
}

@media (max-width: 992px) {
  .main h1 {
    font-size: 36px;
  }
  .content-top h2 {
    font-size: 20px;
    padding: 10px 0;
  }
  .content-top p,
  .content-top ul li,
  p.footer {
    font-size: 14px;
  }
}

@media (max-width: 768px) {
  .main {
    padding: 20px 0 10px;
  }
  .main h1 {
    font-size: 34px;
  }
  .wrapper {
    padding: 0 24px;
  }
}

@media (max-width: 576px) {
  .main h1 {
    font-size: 32px;
    margin-bottom: 10px;
  }
  .main {
    padding: 20px 0 10px;
  }
  .content-top h2 {
    font-size: 18px;
  }
  .wrapper {
    padding: 0 16px;
  }
}

@media (max-width: 480px) {
  .main {
    padding: 20px 0 10px;
  }
  .main h1 {
    font-size: 28px;
  }
  p.footer {
    margin-top: 10px;
    font-size: 14px;
  }
}

.icon-container {
	display: flex;
	justify-content: center;
	width: 100%;
}

.icon-container img {
	margin-top: 4px;
}

.icon-container figure {
	text-align: center;
	margin: 2px 32px;
}

.icon-container figcaption {
	font-size: 14px;
	color: #666;
}

.referandroid {
	text-align: center;
	margin-top: 2px;
	font-size: 14px;
	color: #666;
}