/* common */
.need-area {
    --need-top-color: var(--blue-light-color);
}
/* common */

/* chain-area */
.chain-area .base-maxwidth {
    position: relative;
    color: var(--white-color);
}

.chain-title {
    position: absolute;
    top: 78px;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    text-align: center;
}

.chain-list {
    position: absolute;
    bottom: 78px;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    gap: 35px 70px;
}

.chain-list li {
    width: calc(50% - 18px);
    max-width: 556px;
    padding: 10px 30px;
    border: 1px solid var(--white-color);
    border-radius: 50px;
    backdrop-filter: blur(10px);
    font-size: 30px;
    text-align: center;
}

/* 笔记本小屏 */
@media (max-width: 1480px) {
    .chain-title {
        top: 60px;
    }

    .chain-list {
        bottom: 60px;
        gap: 30px 50px;
    }

    .chain-list li {
        max-width: 480px;
        padding: 10px 26px;
        font-size: 26px;
    }
}

/* 平板 */
@media (max-width: 1024px) {
    .chain-title {
        top: 50px;
    }

    .chain-title h2 {
        font-size: 26px;
    }

    .chain-list {
        bottom: 50px;
        gap: 10px 20px;
    }

    .chain-list li {
        max-width: 300px;
        padding: 10px 24px;
        font-size: 16px;
    }
}

/* 手机 */
@media (max-width: 768px) {
    .chain-title {
        top: 40px;
    }

    .chain-title h2 {
        font-size: 20px;
    }

    .chain-list {
        bottom: 40px;
        gap: 20px;
    }

    .chain-list li {
        max-width: 100%;
        width: calc(50% - 10px);
        margin: 0 auto;
        padding: 10px 22px;
    }
}

/* 小屏手机 */
@media (max-width: 580px) {
    .chain-area img {
        min-height: 500px;
        object-fit: cover;
    }

    .chain-title {
        top: 30px;
    }

    .chain-list {
        bottom: 30px;
        flex-direction: column;
    }

    .chain-list li {
        width: 100%;
        padding: 8px 10px;
    }
}

/* chain-area */

/* operation-area */
.operation-area {
    background: var(--blue-light-color);
}

.operation-list {
    margin-top: 88px;
    gap: 50px 30px;
}

.operation-list li {
    --operation-color: var(--light-color);
    
    position: relative;
    flex: 1;
    max-width: 366px;
    padding: 76px 25px 54px;
    background: var(--white-color);
    border-radius: 20px;
    transition: all .3s;
    text-align: center;
}

.operation-number {
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 90px;
    height: 90px;
    border: 3px solid var(--white-color);
    border-radius: 50%;
    background: var(--operation-color);
    color: var(--white-color);
    font-size: 30px;
}

.operation-area h3 {
    min-height: 40px;
    font-size: 18px;
}

.operation-area p {
    margin-top: 24px;
    color: var(--text-light-color);
    transition: all .3s;
}

.operation-list li:hover {
    background: var(--operation-color);
    color: var(--white-color);
}

.operation-list li:hover p {
    color: var(--white-color);
}

/* operation-area 响应式 */
@media (max-width: 1480px) {
  .operation-list {
    margin-top: 70px;
    gap: 40px 25px;
  }
  .operation-list li {
    max-width: 320px;
    padding: 70px 20px 45px;
  }
  .operation-number {
    width: 80px;
    height: 80px;
    font-size: 26px;
  }
}

@media (max-width: 1200px) {
  .operation-list {
    margin-top: 60px;
    gap: 45px 20px;
  }
  .operation-list li {
    max-width: 290px;
    padding: 65px 20px 40px;
  }
  .operation-number {
    top: -35px;
    width: 75px;
    height: 75px;
  }
}

@media (max-width: 991px) {
  .operation-list {
    flex-wrap: wrap;
  }
  .operation-list li {
    flex: 0 0 calc(50% - 15px);
    max-width: none;
  }
}

@media (max-width: 768px) {
  .operation-list {
    margin-top: 50px;
    gap: 50px 20px;
  }
  .operation-number {
    width: 70px;
    height: 70px;
    font-size: 24px;
  }
  .operation-area p {
    margin-top: 18px;
  }
}

/* 统一使用 480px 断点 */
@media (max-width: 480px) {
  .operation-list li {
    flex: 0 0 100%;
    padding: 55px 20px 30px;
  }
  .operation-number {
    top: -30px;
    width: 65px;
    height: 65px;
    font-size: 22px;
    border-width: 2px;
  }
  .operation-area h3 {
    font-size: 16px;
    min-height: auto;
  }
  .operation-area p {
    margin-top: 15px;
    font-size: 14px;
  }
}
/* operation-area */

/* tech-area */

.tech-left {
    margin-right: 100px;
}

.tech-left img {
    border-radius: 20px;
    display: block;
}

.tech-list li {
    margin-top: 30px;
}

.tech-list h3 {
    display: flex;
    align-items: center;
    width: fit-content;
    min-width: 280px;
    padding: 10px 20px;
    border-radius: 25px;
    background: var(--purple-color);
    font-size: 18px;
    color: var(--white-color);
}

.tech-list li:nth-child(2n) h3 {
    background: var(--red-color);
}

.tech-list h4 {
    display: flex;
    align-items: center;
    margin-top: 18px;
    font-size: 18px;
}

.tech-list h3 svg,
.tech-list h4 img {
    margin: 0 5px 0 0;
}

.tech-list h4,
.tech-list p {
    margin-left: 20px;
}

.tech-list p {
    margin-top: 8px;
    color: var(--text-light-color);
}

/* tech-area 响应式适配 */
@media (max-width: 1480px) {
  .tech-left {
    margin-right: 70px;
  }
}
@media (max-width: 1200px) {
  .tech-left {
    margin-right: 50px;
  }
}
@media (max-width: 991px) {
  .tech-area .base-maxwidth {
      flex-direction: column;
  }

  .tech-left {
    margin-right: 0;
    margin-bottom: 40px;
  }
}
@media (max-width: 768px) {
  .tech-list li {
    margin-top: 24px;
  }
}
@media (max-width: 480px) {
  .tech-list li {
    margin-top: 20px;
  }
  .tech-list h3 {
    font-size: 16px;
  }
  .tech-list p {
    margin-top: 6px;
    font-size: 14px;
  }
}
/* tech-area */