.trade-process-wrap {
    width: 100%;
    max-width: 1920px;
    min-height: 520px;
    padding: 25px 30px;
    box-sizing: border-box;
    font-family: inherit;
    margin: 0 auto;
}
.trade-main-title {
    text-align: center;
    font-size: 36px;
    font-weight: normal;
    color: #32373B;
    margin: 0 0 10px 0;
}
.trade-sub-desc {
    text-align: center;
    font-size: 18px;
    color: #32373B;
    margin-bottom: 70px;
}
.timeline-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    position: relative;
    gap: 12px;
}
.timeline-container::before {
    content: "";
    position: absolute;
    height: 2px;
    background: #707c8c;
    left: calc(80px / 2);
    right: calc(80px / 2);
    top: 40px;
    z-index: 1;
}
.timeline-item {
    width: 10.6%;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 2;
    cursor: pointer; /* 增加手型光标提示可交互 */
}

/* ================= 核心圆圈样式及平滑过渡 ================= */
.timeline-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    font-weight: bold;
    color: #0BAF4D;
    background-color: #32373B;
    margin-bottom: 20px;
    border: 2px solid transparent; /* 预留边框防抖动 */
    box-sizing: border-box;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); /* 丝滑过渡曲线 */
}

/* 第9个原版绿色圆圈 */
.timeline-circle.gold-bg {
    background: #0BAF4D;
    color: #FFFFFF;
    box-shadow: 0 4px 14px rgba(11, 175, 77, 0.3);
}

/* ================= 鼠标悬停 (Hover) 核心交互动效 ================= */
/* 1~8 号圆圈悬停：微上浮 + 翻转为绿底白字 + 绿色氛围微光 */
.timeline-item:hover .timeline-circle {
    transform: translateY(-5px);
    background-color: #0BAF4D;
    color: #FFFFFF;
    box-shadow: 0 8px 20px rgba(11, 175, 77, 0.45);
}

/* 第9号圆圈悬停：反转为深灰底 + 翠绿发光字 + 深色上浮微光 */
.timeline-item:hover .timeline-circle.gold-bg {
    background-color: #32373B;
    color: #0BAF4D;
    border-color: #0BAF4D;
    box-shadow: 0 8px 20px rgba(50, 55, 59, 0.4);
}

/* 悬停时对应标题同步微变色高亮 */
.timeline-item:hover h4 {
    color: #0BAF4D;
}

/* 点击时微按压反馈 */
.timeline-item:active .timeline-circle {
    transform: translateY(-2px);
}

.timeline-item h4 {
    font-size: 15px;
    text-align: center;
    color: #32373B;
    margin: 0 0 8px 0;
    line-height: 1.35;
    font-weight: 700;
    transition: color 0.25s ease;
}
.timeline-item p {
    font-size: 13px;
    text-align: center;
    color: #32373B;
    margin: 0;
    line-height: 1.45;
}

/* 响应式适配 */
@media (max-width: 1200px) {
    .trade-process-wrap {
        padding: 20px 24px;
    }
    .trade-main-title {
        font-size: 36px;
    }
    .trade-sub-desc {
        font-size: 18px;
        margin-bottom: 35px;
    }
    .timeline-container {
        flex-wrap: wrap;
        gap: 32px;
        justify-content: center;
    }
    .timeline-container::before {
        display: none;
    }
    .timeline-item {
        width: 30%;
    }
}
@media (max-width: 768px) {
    .trade-process-wrap {
        min-height: auto;
        padding: 20px 16px;
    }
    .trade-main-title {
        font-size: 28px;
    }
    .timeline-container {
        flex-direction: column;
        gap: 24px;
    }
    .timeline-item {
        width: 100%;
        flex-direction: row;
        gap: 18px;
        align-items: flex-start;
    }
    .timeline-item > div {
        flex: 1;
    }
    .timeline-item h4 {
        text-align: left;
    }
    .timeline-item p {
        text-align: left;
    }
    .timeline-item:hover .timeline-circle {
        transform: translateY(0) scale(1.05); /* 移动端改为微放大 */
    }
}