:root {
  --color-black: #000000;
  --color-white: #ffffff;
  --color-dark: #34363c;
  --color-charcoal: #333333;
  --color-gray: #cccccc;
  --color-gray-600: #666666;
  --color-gray-400: #999999;
  --color-gray-300: #8f8f8f;
}

* {
  box-sizing: border-box;
}

body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  font-size: 16px;
  color: var(--color-gray);
  font-family: "Noto Sans CJK SC", "Helvetica Neue", Helvetica, "Hiragino Sans GB", "Microsoft YaHei", "Apple Color Emoji", "Segoe UI Symbol", Arial, sans-serif;
  font-style: normal;
  font-variant: normal;
  font-weight: 400;
  font-stretch: normal;
  line-height: 1.5;
  background-color: #34363c;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin-bottom: 0;
}

p {
  margin-bottom: 0;
}

.custom-container {
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
}


.sptb {
  padding: 100px 0;
}

.spt {
  padding-top: 100px;
}

.spb {
  padding-bottom: 100px;
}

/* 单行截断 */
.text-ellipsis-1 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-word;
}

/* 超出两行显示省略号 */
.text-ellipsis-2 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-word;
}

/* 超出三行显示省略号 */
.text-ellipsis-3 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
  text-overflow: ellipsis;
  word-break: break-word;
}



/* 案例 */
.case-section {
  background-color: #232323;
}

.section-head-title {
  font-size: 26px;
  font-weight: 600;
  color: var(--color-white);
  line-height: 1;
  letter-spacing: 1px;
  border-bottom: solid 1px var(--color-gray-600);
}

@media (max-width: 768px) {
  .section-head-title {
    font-size: 20px;
  }
}

.case-one-wrap {
  position: relative;
  /* border-radius: 15px;
  border: solid 1px var(--color-gray-600); */
}

.case-one-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}



/* 底部 */
footer {
  background-color: #fefefe;
}

.footer-info,
.footer-info p {
  color: var(--color-gray-300);
  font-size: 16px;
  line-height: 30px;
}

.footer-info p:not(:has(img)) {
  padding: 0 12px;
}

.footer-info img {
  width: 100%;
}


.case-section-bg {
  background-color: var(--color-white);
}

.page-content {
  color: var(--color-gray-300);
  font-size: 16px;
  line-height: 30px;
}

.page-content h1,
.page-content h2,
.page-content h3,
.page-content h4,
.page-content h5,
.page-content h6 {
  color: var(--color-charcoal);
  margin-bottom: 10px;
}

.page-content img {
  max-width: 100%;
  width: 100%;
}