.sealbox {
    position: relative;
}
.sealbox .seal,
.sealbox .seal-small,
.sealbox .seal-solid,
.sealbox .seal-square {
    position: absolute;
    z-index: 9;
    pointer-events: none;
    box-sizing: border-box;
}
.seal-transparency {
    opacity: 0.75;
}

/* 方位：只控制位置，无rotate */
.sealbox .seal-tl {
    top: 10px;
    left: 10px;
}
.sealbox .seal-tc {
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
}
.sealbox .seal-tr {
    top: 10px;
    right: 10px;
}
.sealbox .seal-cl {
    top: 50%;
    left: 10px;
    transform: translateY(-50%);
}
.sealbox .seal-cc {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.sealbox .seal-cr {
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
}
.sealbox .seal-bl {
    bottom: 10px;
    left: 10px;
}
.sealbox .seal-bc {
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
}
.sealbox .seal-br {
    bottom: 10px;
    right: 10px;
}

/* 本体自带旋转，各自独立 */
.seal {
    width: 100px;
    height: 100px;
    border: 4px solid #c82423;
    border-radius: 50%;
    color: #c82423;
    font-size: 22px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    transform: rotate(-12deg);
    letter-spacing: 2px;
    user-select: none;
    box-shadow: 0 0 3px rgba(200, 36, 35, 0.4);
}
.seal-small {
    width: 60px;
    height: 60px;
    border: 2px solid #c82423;
    border-radius: 50%;
    color: #c82423;
    font-size: 14px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: rotate(-8deg);
    letter-spacing: 1px;
}
.seal-solid {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #c82423;
    color: #fff;
    font-size: 14px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: rotate(-8deg);
}
.seal-square {
    width: 70px;
    height: 70px;
    border: 2px solid #c82423;
    color: #c82423;
    font-size: 14px;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: rotate(-6deg);
    border-radius: 4px;
}