/* 全局效果 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-size: 14px;
    font-family: Helvetica, "Microsoft Yahei", sans-serif;
}

body {
    background: url(image/bj.jpg);
}

img {
    width: 100%;
}

/* 滚动效果 */
html {
    scroll-behavior: smooth;
}

/* 色彩信息 */
:root {
    --primary-color: #ff434f;
    --secondary-color: #e3e3e3;
    --text-color-lightest: #e7e9ec;
    --text-color-darker: #2e2e2e;
    --text-color-dark: #494949;
    --text-color-gray: #8b8b8b;
    --text-color-dark-gray: #727272;
    --text-color-light-gray: #c6c6c6;
    --backdrop-color: rgba(42, 42, 42, 0.69);
}

/* 头部信息 */
header {
    width: 100vw;
    height: 80px;
    display: grid;
    padding: 0 40px;
    grid-template-columns: 1fr 2fr;
    align-items: center;
    position: relative;
    z-index: 200;
}

.logo {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-color-lightest);
}

header nav {
    justify-self: end;
}

header nav a {
    color: var(--text-color-lightest);
    text-decoration: none;
    margin: 0 24px;
}

header .burgar {
    display: none;
}

header.sticky {
    position: fixed;
    background-color: white;
    box-shadow: 0 0 18px rgba(0, 0, 0, 0.2);
    animation: dropDowm 0.5s ease-in-out forwards;
}

header.sticky .logo,
header.sticky nav a {
    color: black;
}

/* 顶部栏滑动效果 */
@keyframes dropDowm {
    from {
        transform: translateY(-100px);
    }

    to {
        transform: translateY(0);
    }
}

.glide {
    position: relative;
    top: -80px;
    z-index: 50;
}

.glide__slide img,
.glide__slide video {
    width: 100vw;
    height: 100vh;
    object-fit: cover;
}

.slide-caption {
    position: absolute;
    z-index: 70;
    color: var(--text-color-lightest);
    text-align: center;
    max-width: 60vw;
}

.glide__slide {
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide-caption h1 {
    font-size: 54px;
    font-weight: 600;
}

.slide-caption h3 {
    font-size: 24px;
    margin: 48px 0;
}

.slide-caption.left {
    max-width: 80vw;
    text-align: left;
}

.slide-caption>* {
    opacity: 0;
}

.backdrop {
    background: var(--backdrop-color);
    z-index: 60;
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    opacity: 0.5;
}

.explore-btn {
    padding: 14px 32px;
    background-color: rgb(72, 129, 235);
    border: 0;
    border-radius: 4px;
    color: var(--text-color-lightest);
    font-size: 18px;
    cursor: pointer;
    outline: none;
}

/* 主要内容通用样式 */
.content-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

section {
    display: grid;
    justify-items: center;
    max-width: 1180px;
    padding: 0 80px;
}

.section-bg {
    position: relative;
}

.section-bg::before {
    content: "";
    display: block;
    position: absolute;
    background-color: #f9fbfb;
    width: 100vw;
    height: 100%;
    z-index: -1;
}

.title1 {
    margin-top: 80px;
    font-size: 34px;
    color: var(--text-color-darker);
}

.title1::after {
    content: "";
    display: block;
    width: 80%;
    height: 4px;
    background-color: var(--primary-color);
    margin-top: 14px;
    transform: translateX(10%);
}

.intro {
    margin: 28px 0 60px 0;
    font-size: 18px;
    color: var(--text-color-gray);
}

/* 新闻动态 */
.news-infor {
    font-size: 18px;
    margin-top: 88px;
}

.news {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    column-gap: 24px;
}

.new {
    box-shadow: 0px 0px 24px rgba(0, 0, 0, 0.1);
    padding: 24px;
    transition: 0.4s;
    margin: 20px;
}

.act-image-wrapper {
    height: 255px;
    overflow: hidden;
    margin: -24px;
    margin-bottom: 0;
}

.act-image-wrapper img {
    min-height: 300px;
    object-fit: cover;
}

.new .meta {
    margin-top: 20px;
    margin-bottom: 12px;
    color: var(--text-color-darker);
    font-size: 12px;
    display: flex;
}

.new .meta>p:last-child {
    margin-left: 26px;
}

.act-title {
    color: var(--text-color-dark);
    font-size: 18px;
    margin-bottom: 24px;
}

.new article {
    color: var(--text-color-gray);
    letter-spacing: 0.54px;
    line-height: 24px;
    width: 400px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.readmore-btn {
    border: 0;
    color: white;
    background-color: var(--primary-color);
    border-radius: 4px;
    padding: 6px 14px;
    margin-top: 24px;
    cursor: pointer
}

.new:hover {
    transform: translateY(-20px) scale(1.05);
    box-shadow: 0px 0px 36px rgba(0, 0, 0, 0.1);
}

/* 关于我们 */
.about-us {
    padding-bottom: 32px;
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: 126px 126px;
}

.feature {
    display: grid;
    grid-template-areas:
        "icon title"
        "icon content";
    grid-template-columns: 60px 1fr;
    grid-template-rows: 1fr 3fr;
}

.feature-title {
    grid-area: title;
    font-size: 18px;
    color: var(--text-color-darker);
}

.feature-content {
    grid-area: content;
    color: var(--text-color-gray);
}

/* 团队介绍 */
.team-intro {
    margin-top: 48px;
    padding-top: 62px;
    padding-bottom: 52px;
}

.team-members {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    column-gap: 24px;
    margin-top: 86px;
}

.team-member {
    background-color: white;
    box-shadow: 0px 0px 24px rgba(0, 0, 0, 0.2);
    text-align: center;
    padding-bottom: 28px;
    transition: 0.4s;
    display: grid;
    justify-items: center;
}

.profile-image {
    overflow: hidden;
}

.profile-image img {
    width: 100%;
    height: 264px;
    object-fit: cover;
    object-position: top;
}

.team-member .name {
    margin-top: 18px;
    font-size: 18px;
    font-weight: 500;
    color: var(--text-color-dark);
}

.team-member .position {
    color: var(--text-color-dark-gray);
    margin-top: 12px;
    margin-bottom: 18px;
}

.social-links {
    width: 100%;
    max-width: 150px;
    display: flex;
    justify-content: space-between;
    padding: 0 42px;
}

.social-links li {
    list-style: none;
}

.social-links li img {
    color: var(--text-color-dark);
    text-decoration: none;
}

.team-member:hover {
    transform: translateY(-20px) scale(1.05);
    box-shadow: 0px 0px 36px rgba(0, 0, 0, 0.1);
}

.video_team a {
    color: var(--text-color-darker);
}

/* 作品风采 */
.showcases {
    max-width: unset;
    padding: 0;
    padding-top: 72px;
}

.filter-btns {
    margin-top: 54px;
    margin-bottom: 38px;
}

.filter-btn {
    margin: 0 7px;
    background-color: var(--secondary-color);
    border: 0;
    color: var(--text-color-dark-gray);
    padding: 8px 18px;
    border-radius: 4px;
    cursor: pointer;
    transition: 0.4s;
}

.filter-btn:focus,
.filter-btn:active {
    outline: none;
}

.filter-btn:active,
.filter-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

.showcases .cases {
    width: 100vw;
}

.showcases .case-item {
    width: 25vw;
    height: 20vw;
    overflow: hidden;
}

.case-item img {
    height: 100%;
    object-fit: cover;
}

/* 底部信息 */
footer {
    margin-top: 124px;
    background-color: #181818;
    display: grid;
    justify-content: center;
    padding-top: 72px;
    padding-bottom: 24px;
}

.footer-menus {
    width: 100%;
    max-width: 1180px;
    display: grid;
    grid-template-columns: 3fr repeat(4, 2fr);
    padding: 0 80px;
    position: relative;
    margin-left: 50px;
}

.menu-title {
    font-size: 16px;
    color: white;
    font-weight: 500;
    margin-bottom: 20px;
}

.contact-us {
    justify-self: start;
    color: var(--text-color-lightest);
}

.contact-us p:not(:first-child) {
    padding-bottom: 16px;
}

.menu-items li {
    list-style: none;
    padding-bottom: 8px;
}

.menu-items li a {
    text-decoration: none;
    font-weight: 300;
    color: var(--text-color-lightest);
}

.icp-info {
    margin-top: 24px;
    margin-bottom: 16px;
}

.icp-info,
.rights {
    grid-column: 1/-1;
    justify-self: center;
    color: white;
}

.icp-info a,
.rights a {
    color: var(--text-color-lightest);
}

/* 返回顶部箭头 */
.scrollToTop {
    display: none;
    position: relative;
    z-index: 300;
}

.scrollToTop a {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    position: fixed;
    bottom: 60px;
    right: 30px;
}