.code-page {
    width: 100%;
    min-height: 100vh;
    padding-top: 88px;
    background: #f2f4f9;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}
/* === QR GENERATOR - RESPONSIVE & CÂN XỨNG HOÀN TOÀN === */

/* Container tổng thể */
.code-operate-container {
    width: 100%;
    display: flex;
    justify-content: center;
}

.code-operate-container .el-row {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    justify-content: center;
    gap: 24px;
    max-width: 1280px;
    /* Giới hạn độ rộng tối đa để cân bố cục */
    margin: 0 auto;
    padding: 0 16px;
    box-sizing: border-box;
}

/* Hai khối chính */
.code-operate-box {
    flex: 1 1 48%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.05);
    padding: 24px;
    transition: all 0.3s ease;
    min-width: 380px;
    box-sizing: border-box;
}

.code-operate-box:hover {
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
}

/* Textarea mở rộng đều */
.code-data-box-outer,
.code-data-box {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.code-data-box .el-textarea__inner {
    flex: 1;
    width: 100%;
    min-height: 300px;
    resize: none;
    padding: 14px 16px;
    border-radius: 10px;
    border: 1px solid #dcdfe6;
    position: relative;
}
.breadcrumb-box {
    display: flex;
    align-items: center;
}
.code-page .breadcrumb-box-pc {
    display: flex;
}
.code-page .breadcrumb-box-mobile {
    display: none;
}
.breadcrumb-box a {
    width: auto !important;
}
.code-page .code-operate-desc-mobile {
    display: none;
}

.code-container {
    width: 100%;
    min-height: calc(100vh - 88px);
    overflow: hidden auto;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-bottom: 20px;
}

.code-menu-box {
    width: 320px;
    height: calc(100vh - 88px);
    background: #ffffff;
    border-radius: 0px 0px 4px 4px;
    padding: 58px 16px 16px;
    position: absolute;
    left: 10%;
    top: 88px;
}

.code-menu-title {
    font-size: clamp(1rem, 0.609rem + 0.64vw, 1.375rem);
    color: #22252a;
    line-height: 58px;
    background: #ffffff;
    position: absolute;
    height: 58px;
    top: 0;
    left: 0;
    padding-left: 16px;
    z-index: 5;
}

.code-type-list {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.code-menu-box:hover .code-type-list {
    overflow: hidden auto;
}

.code-page .el-menu {
    border: none;
}

.code-page .el-submenu {
    margin-right: 8px;
    border-radius: 4px;
    background: #ffffff;
}

.code-page .el-menu-item {
    margin: 10px 8px 10px 0;
    border-radius: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: pre-wrap;
    display: flex;
    align-items: center;
    line-height: 25px;
    height: 50px;
}

.code-page .el-submenu__title {
    margin: 10px 0;
    border-radius: 4px;
}

.code-page .el-submenu:first-child .el-submenu__title {
    margin-top: 0;
}

.code-page .el-menu-item:first-child {
    margin-top: 0;
}

.code-page .el-submenu:last-child .el-submenu__title {
    margin-bottom: 0;
}

.code-page .el-submenu .el-menu-item {
    background: none;
    margin: 0 8px 0 0;
    min-width: 100%;
    padding: 0 20px 0 45px;
}

.code-page .el-submenu__title:hover {
    /* background-color: rgba(34, 85, 244, 0.08) !important; */
    color: #2255f4 !important;
}

.code-page .el-menu-item:focus {
    background-color: none !important;
}

.code-page .el-menu-item:hover {
    /* background-color: rgba(34, 85, 244, 0.08) !important; */
    color: #2255f4 !important;
}

.code-page .el-submenu.is-active .el-submenu__title {
    border-bottom: none !important;
}

.code-page .el-menu-item.is-active {
    background-color: rgba(34, 85, 244, 0.08) !important;
    color: #2255f4;
}
.code-page a {
    color: inherit;
}
.code-page .el-menu-item a {
    width: 100%;
    flex-shrink: 0;
    display: block;
    overflow: inherit;
    word-wrap: break-word;
    word-break: normal;
    max-height: 50px;
    /* text-overflow: inherit; */
}
.menu-title {
    width: calc(100% - 10px) !important;
    overflow: hidden !important;
    /* text-overflow: ellipsis !important; */
    vertical-align: middle;
    display: flex !important;
    align-items: center;
    height: 50px;
}
.menu-title img {
    width: 24px;
    height: 24px;
    display: inline-block;
}
.menu-title span {
    flex-shrink: 0;
    padding-left: 10px;
    display: inline-block;
    width: calc(100% - 40px);
    word-wrap: break-word;
    word-break: break-all;
    line-height: 25px;
    overflow: hidden;
    white-space: pre-wrap;
    max-height: 50px;
}

.code-main {
    width: calc(100% - 10% - 320px - 10% - 24px);
    margin-left: calc(320px + 24px);
}

/* --- PHẦN GIỚI THIỆU --- */
.introduction-wrapper {
    width: 100%;
    max-width: 1100px;
    margin: 24px auto 0;
    padding: 0 15px;
}
.code-operate-desc {
    width: 100%;
    background: #ffffff;
    border-radius: 10px;
    padding: 24px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border-left: 5px solid #2255f4;
}
.operate-desc-title {
    font-size: 26px;
    color: #22252a;
    line-height: 36px;
    font-weight: 700;
    margin-bottom: 0;
}
.separator-line {
    width: 60px;
    height: 3px;
    background: #2255f4;
    margin: 10px 0 20px 0;
    border-radius: 2px;
}
.operate-desc-text {
    margin-top: 10px;
    font-size: 16px;
    color: #52575e;
    line-height: 26px;
}
.code-page .code-operate-desc-pc {
    display: none;
}
/* --- HẾT PHẦN GIỚI THIỆU --- */

/* --- KHỐI CHỨC NĂNG CHÍNH VÀ CÂN BẰNG CHIỀU CAO (FLEX STRETCH) --- */
.code-operate-container {
    width: 100%;
    max-width: 1100px;
    margin: 24px auto 12px;
    padding: 0 15px;
}
.code-operate-container .el-row {
    margin: 0 -12px;
    /* BƯỚC QUAN TRỌNG: Kéo giãn các cột bằng nhau theo cột cao nhất */
    align-items: stretch;
    min-height: 520px; /* Chiều cao tối thiểu cho toàn bộ khối trên desktop */
}
.code-operate-col {
    padding: 12px;
}

/* KHỐI DATA VÀ PREVIEW CHUNG */
.code-operate-box {
    width: 100%;
    padding: 20px;
    overflow: hidden;
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.3s ease;

    /* === FLEXBOX CỘT CON === */
    display: flex;
    flex-direction: column;
    height: 100%; /* Đảm bảo khối này chiếm hết chiều cao của cột */
}
.code-operate-box:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.code-operate-box-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid #f0f0f0;
    flex-shrink: 0;
}

.code-operate-box-header img {
    width: 32px;
    height: 32px;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.code-operate-box-header img:hover {
    opacity: 1;
}

.code-operate-title {
    font-size: 20px;
    color: #22252a;
    line-height: 28px;
    font-weight: 600;
}

/* --- ĐIỀU CHỈNH CỘT DATA (LEFT): Textarea kéo sát nút --- */

.code-data-box-outer {
    width: 100%;
    flex-grow: 1;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    min-height: 400px;
    padding-bottom: 0 !important; /* Loại bỏ padding tiềm năng */
}

.code-data-box {
    width: 100%;
    flex-grow: 1;
}

.code-data-box-title {
    font-size: 16px;
    color: #7f8792;
    line-height: 24px;
    margin-bottom: 10px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.code-data {
    /* KHẮC PHỤC CUỐI CÙNG: Loại bỏ mọi margin/padding xung đột trong khối này */
    margin-bottom: 0 !important;
    padding-bottom: 0 !important;
    height: 100%;
}

.code-data .el-textarea__inner {
    height: 100%;
}

.code-data-qr {
    height: 100%;
}

/* THÊM QUY TẮC NHẮM VÀO EL-TEXTAREA ĐỂ ĐẢM BẢO CHIỀU CAO */
.code-data-qr.el-textarea {
    height: 100%;
    margin-bottom: 0 !important;
}

.code-data-qr .el-textarea__inner {
    height: 100% !important;
    min-height: 300px;
    border-radius: 6px;
}

.code-Sequence-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 16px 0;
}

.code-Sequence-box-item {
    width: 30%;
    flex-shrink: 0;
}

.code-Sequence-box-item .el-input-number .el-input__inner {
    text-align: left;
}

.code-tip {
    font-size: 14px;
    color: #7f8792;
    line-height: 18px;
    display: flex;
    flex-shrink: 0;
}

.code-tip-text {
    overflow: hidden auto;
    width: 100%;
}

/* --- ĐIỀU CHỈNH CỘT PREVIEW (RIGHT) --- */
.code-form-operate-box {
    height: 100%;
    min-height: 480px;
}

.code-preview-box {
    width: 100%;
    /* Chiếm hết không gian còn lại giữa Header và Button Download */
    flex-grow: 1;
    min-height: 400px;
    background: #f5f8fc;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    font-size: 16px;
    color: #7f8792;
    line-height: 22px;
    position: relative;
    text-align: center;
    border-radius: 6px;
}

.code-preview-box .reset-box {
    position: absolute;
    text-align: center;
    margin-top: 34px;
    bottom: 10px;
    font-size: 16px;
    line-height: 22px;
    cursor: pointer;
    color: #2255f4;
}

.code-preview-box .reset-box i {
    margin-right: 4px;
}

.code-form-operate-box .code-preview-box {
    margin-top: 0;
    padding: 30px 20px;
}

.code-preview-box img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}
/* --- HẾT KHỐI DATA VÀ PREVIEW --- */

/* --- CẢI THIỆN NÚT BẤM --- */
.code-set-btngroup {
    display: flex;
    align-items: center;
    margin-top: 20px;
    justify-content: space-between;
    gap: 10px;
    flex-shrink: 0;
}

.code-set-btngroup .el-button {
    width: 48%;
    height: 44px;
    background: #2255f4;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    color: #ffffff;
    line-height: 44px;
    padding: 0;
    text-align: center;
    border: none;
    transition: all 0.3s ease;
}

.code-dowload {
    width: 100% !important;
    margin-top: 15px;
}

.code-set-btngroup .el-button:last-child {
    background: #f5f8fc;
    color: #7f8792;
    border: 1px solid #dcdfe6;
}

.code-set-btngroup .el-button:hover {
    background: #1e4bd4;
}

.code-set-btngroup .el-button:active {
    background: rgba(33, 80, 223, 1);
}

.code-set-btngroup .el-button:last-child:hover {
    background: #eaeff6;
    color: #52575e;
    border-color: #bfc4cd;
}

.code-set-btngroup .el-button:last-child:active {
    background: rgba(34, 85, 244, 0.1);
}
/* --- HẾT CẢI THIỆN NÚT BẤM --- */

.code-introduce-box {
    width: 100%;
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.code-introduce-title {
    font-size: 24px;
    color: #22252a;
    line-height: 36px;
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.code-tutorial-header .code-introduce-title {
    width: 70%;
}

.code-introduce-container {
    width: calc(100% + 24px);
    margin: 4px -12px;
}

.code-introduce-container ::-webkit-scrollbar {
    width: 3px;
    /* display: none; */
}

.code-introduce-item {
    background: #ffffff;
    border-radius: 4px;
    margin: 12px;
    padding: 16px;
}

.code-introduce-img-box {
    margin-bottom: 16px;
    height: 8vw;
}

.code-introduce-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.code-introduce-item-title {
    font-size: 18px;
    color: #22252a;
    line-height: 28px;
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    word-break: break-all;
}

.code-introduce-item-text {
    font-size: 16px;
    color: #7f8792;
    line-height: 28px;
    height: 90px;
    margin-top: 8px;
    word-break: break-all;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
}

.code-introduce-item-text:hover {
    overflow: hidden auto;
    text-overflow: unset;
    display: block;
}

.code-form-introduce-container {
    width: 100%;
    margin: 16px 0;
}

.code-form-introduce-item {
    width: 100%;
    height: 16.25vw;
    padding: 24px;
    background: #ffffff;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.code-form-introduce-item-left {
    height: calc(16.25vw - 48px);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
}

.code-form-introduce-item-left a {
    color: #2255f4;
    font-size: clamp(0.875rem, 0.645rem + 0.4vw, 1.125rem);
    line-height: 28px;
}

.list-style {
    border-radius: 50%;
    width: 6px;
    height: 6px;
    background: #d6dce6;
    margin-right: 8px;
    flex-shrink: 0;
    margin-top: 12px;
}

.code-form-introduce-item .code-introduce-item-text {
    font-size: clamp(0.875rem, 0.645rem + 0.4vw, 1.125rem);
    color: #7b89a1;
    margin-top: 0;
}

.code-form-introduce-item img {
    width: 37%;
    height: 100%;
    margin-bottom: 0;
    margin-left: 40px;
}

.code-tutorial-box {
    width: 100%;
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.code-tutorial-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.code-tutorial-container {
    width: 100%;
    margin: 16px 0;
    background: #ffffff;
    border-radius: 4px;
    padding: 24px;
}

.code-form-introduce-box .code-tutorial-container {
    margin: 24px auto 0;
}

.code-tutorial-item {
    font-size: 16px;
    color: #535d6c;
    line-height: 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    cursor: pointer;
}

.code-tutorial-item:hover {
    color: #2255f4;
}

.code-tutorial-container .el-col:nth-child(2n-1) .code-tutorial-item {
    padding-right: 44px;
}

.code-tutorial-container .el-col:nth-child(2n) .code-tutorial-item {
    padding-left: 44px;
}

.code-tutorial-left {
    display: flex;
    align-items: center;
    width: 70%;
}

.code-tutorial-title {
    white-space: nowrap;
    word-break: break-all;
    overflow: hidden;
    text-overflow: ellipsis;
}

.code-tutorial-circle {
    width: 6px;
    height: 6px;
    background: #d6dce6;
    border-radius: 50%;
    flex-shrink: 0;
    margin-right: 8px;
}

.code-tutorial-time {
    flex-shrink: 0;
}

.explore-more {
    width: auto !important;
    font-size: 16px !important;
    color: #2255f4 !important;
    line-height: 22px !important;
    cursor: pointer;
    display: inline-block !important;
}

.code-type-show-row {
    width: calc(100% + 24px);
    margin: 4px -12px;
}

.code-type-show-col {
    background: #ffffff;
    border-radius: 4px;
    margin: 12px;
    padding: 16px;
}

.code-type-show-row a {
    width: 100%;
    height: 100%;
}

.code-type-show-img-bg {
    width: 100%;
    height: 8vw;
    background: #f5f8fc;
    padding: 13px;
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}

.code-type-show-col img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.code-type-show-title {
    font-size: 18px;
    color: #22252a;
    line-height: 28px;
    text-align: center;
    overflow: hidden;
    white-space: nowrap;
}
.copy-dialog-wrapper {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    overflow: hidden;
    margin: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 29, 33, 0.6);
    z-index: 2000;
}
.copy-dialog-box {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 36%;
    background: #ffffff;
    border-radius: 4px;
    padding: 32px;
}
.copy-dialog-header {
    width: 100%;
    font-size: 20px;
    color: #22252a;
    line-height: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
}

.copy-form-item {
    margin-bottom: 16px;
}
.copy-form-item-title {
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 16px;
    color: #7f8792;
    line-height: 24px;
    margin-bottom: 10px;
}
.copy-form-item .el-input__inner {
    color: #22252a;
    /* border-right: none; */
}
.copy-form-item .el-input-group__append {
    background: none;
    padding: 0 16px;
}
.copy-form-item .el-button {
    margin-right: 0;
    margin-left: 0;
}

/* --- CẬP NHẬT MEDIA QUERIES --- */

@media (max-width: 1669px) {
    .introduction-wrapper {
        max-width: 100%;
    }
    .code-operate-container {
        max-width: 100%;
    }
    .code-data-box-outer {
        min-height: 440px;
    }
    .code-data .el-textarea__inner {
        height: 170px;
    }

    .code-data-qr .el-textarea__inner {
        height: 100% !important;
        min-height: 360px;
    }
    .code-preview-box {
        min-height: 360px;
    }
    /* Khối Preview phải chiếm 100% chiều cao của cột */
    .code-form-operate-box {
        height: 100%;
    }
    /* Đặt min-height nhỏ hơn 461px để nó co giãn theo cột Data */
    .code-form-operate-box .code-preview-box {
        min-height: 390px;
    }
}

@media (max-width: 1480px) {
    .code-menu-box {
        width: 260px;
    }

    .code-main {
        width: calc(100% - 10% - 260px - 10% - 24px);
        margin-left: calc(260px + 24px);
    }

    .code-data-box-outer {
        min-height: 380px;
    }
    .code-data .el-textarea__inner {
        height: 170px;
    }
    .code-preview-box {
        min-height: 300px;
    }

    .code-data-qr .el-textarea__inner {
        height: 100% !important;
        min-height: 300px;
    }

    .code-form-operate-box {
        height: 100%;
    }
    .code-form-operate-box .code-preview-box {
        min-height: 330px;
    }

    .code-introduce-img-box {
        margin-bottom: 10px;
    }

    .code-introduce-item-title {
        font-size: 18px;
    }

    .code-introduce-item-text {
        font-size: 14px;
        height: 60px;
        line-height: 20px;
        margin-top: 5px;
    }

    .code-form-introduce-item .code-introduce-item-text {
        font-size: 14px;
    }

    .code-tip {
        font-size: 12px;
        line-height: 18px;
    }
}

@media (max-width: 1200px) {
    /* Đặt lại giới hạn width khi sidebar bị ẩn */
    .introduction-wrapper {
        max-width: 100%;
        padding: 0 12px;
    }
    .code-operate-container {
        max-width: 100%;
        padding: 0 12px;
    }

    .code-page .breadcrumb-box {
        display: none;
    }
    .code-data-box-outer {
        height: auto;
        min-height: 250px;
    }
    .code-preview-box {
        height: 250px;
        min-height: 250px;
        padding: 20px;
    }

    .code-data-qr .el-textarea__inner {
        height: 100% !important;
        min-height: 200px;
    }

    .code-form-operate-box {
        height: auto;
    }
    .code-form-operate-box .code-preview-box {
        height: 250px;
        min-height: 250px;
    }

    .code-introduce-img-box {
        margin-bottom: 10px;
    }

    .code-introduce-img-box {
        height: 15vw;
    }
    .code-form-introduce-item {
        height: 100%;
        flex-direction: column-reverse;
        justify-content: center;
        border-radius: 4px;
        padding: 16px 16px 20px;
    }

    .code-form-introduce-item img {
        width: 100%;
        margin: 0;
        height: 100%;
        margin-bottom: 12px;
    }

    .code-form-introduce-item .code-introduce-item-text {
        font-size: 14px;
        height: 100%;
        line-height: 20px;
        margin-top: 5px;
    }

    .code-form-introduce-item-left a {
        font-size: 14px;
        margin-top: 12px;
    }

    .code-form-introduce-item-left {
        height: 100%;
    }
    .code-form-introduce-box .code-tutorial-container {
        margin: 16px auto 0;
    }

    .code-tutorial-item {
        width: 100%;
    }

    .code-introduce-item-text {
        -webkit-line-clamp: unset;
        height: 100%;
    }

    .code-tutorial-container .el-col:nth-child(2n-1) .code-tutorial-item {
        padding-right: 0;
    }

    .code-tutorial-container .el-col:nth-child(2n) .code-tutorial-item {
        padding-left: 0;
    }
}

@media (max-width: 992px) {
    /* Điều chỉnh phần giới thiệu trên mobile */
    .introduction-wrapper {
        margin: 16px 0 0 0;
        padding: 0 12px;
    }
    .code-operate-desc {
        padding: 16px;
    }
    .operate-desc-title {
        font-size: 20px;
        line-height: 30px;
    }
    .operate-desc-text {
        font-size: 14px;
        line-height: 22px;
    }

    .code-container {
        width: 90%;
        flex-direction: column;
        padding: 0 0 24px;
    }
    .code-page .code-operate-desc {
        display: none;
    }
    .code-page .breadcrumb-box-mobile {
        display: flex;
    }
    .code-page .code-operate-desc-mobile {
        display: block;
    }
    .code-page .breadcrumb-box-pc {
        display: none;
    }
    /* Thêm khoảng cách giữa 2 cột khi xếp chồng */
    .code-operate-container .el-row > .el-col-24:nth-child(2) {
        margin-top: 24px;
    }

    .code-operate-desc {
        margin-bottom: 24px;
    }

    .code-menu-box {
        width: 100%;
        max-height: 400px;
        height: 100%;
        background: #ffffff;
        border-radius: 0px 0px 4px 4px;
        padding: 58px 16px 16px;
        position: relative;
        left: 0;
        top: 0 !important;
    }

    .code-type-list {
        width: 100%;
        max-height: calc(400px - 65px);
        height: 100%;
        overflow: hidden auto;
    }

    .code-main {
        width: 100%;
        margin-left: 0;
    }

    .qr-code-main {
        margin: 0;
    }

    .code-operate-container {
        margin: 0 0 12px -12px;
    }

    .code-operate-col {
        padding: 0 12px;
    }

    .code-operate-container .code-operate-box:last-child {
        margin-top: 24px;
    }

    .code-data-box-outer {
        height: auto;
        min-height: 180px;
    }

    .code-preview-box {
        height: 180px;
        min-height: 180px;
    }

    .code-data-qr .el-textarea__inner {
        height: 100% !important;
        min-height: 150px;
    }

    .code-form-operate-box {
        height: auto;
    }
    .code-form-operate-box .code-preview-box {
        margin-top: 15px;
        height: 180px;
        min-height: 180px;
    }
    /* Chuyển nút sang xếp chồng và full width */
    .code-set-btngroup {
        flex-direction: column;
        gap: 10px;
    }
    .code-set-btngroup .el-button {
        width: 100%;
    }

    .code-operate-box-header img {
        width: 30px;
        height: 30px;
    }

    .code-operate-title {
        font-size: 20px;
    }

    .code-tip {
        height: 100%;
        margin-bottom: 2vw;
    }

    .code-Sequence-box {
        flex-direction: column;
        justify-content: center;
    }

    .code-Sequence-box-item {
        width: 100%;
        margin-bottom: 16px;
    }

    .code-Sequence-box-item:last-child {
        margin-bottom: 0;
    }

    .code-introduce-title {
        font-size: 18px;
        line-height: 28px;
    }

    .code-introduce-img-box {
        height: 176px;
    }

    .code-type-show-img-bg {
        height: 20vw;
        margin-bottom: 8px;
    }

    .code-type-show-title {
        font-size: 14px;
    }
    .copy-dialog-box {
        width: 90%;
        padding: 16px;
    }
}
/* --- HẾT CẬP NHẬT MEDIA QUERIES --- */
/* === QR GENERATOR - RESPONSIVE & CÂN XỨNG HOÀN TOÀN === */

/* Container tổng thể */
.code-operate-container {
    width: 100%;
    display: flex;
    justify-content: center;
}

.code-operate-container .el-row {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    justify-content: center;
    gap: 24px;
    max-width: 1280px; /* Giới hạn độ rộng tối đa để cân bố cục */
    margin: 0 auto;
    padding: 0 16px;
    box-sizing: border-box;
}

/* Hai khối chính */
.code-operate-box {
    flex: 1 1 48%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.05);
    padding: 24px;
    transition: all 0.3s ease;
    min-width: 380px;
    box-sizing: border-box;
}

.code-operate-box:hover {
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.08);
}

/* Textarea mở rộng đều */
.code-data-box-outer,
.code-data-box {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.code-data-box .el-textarea__inner {
    flex: 1;
    width: 100%;
    min-height: 300px;
    resize: none;
    padding: 14px 16px;
    border-radius: 10px;
    border: 1px solid #dcdfe6;
    font-size: 15px;
    line-height: 22px;
    transition: all 0.25s ease;
    box-sizing: border-box;
}

.code-data-box .el-textarea__inner:focus {
    border-color: #2264f4;
    box-shadow: 0 0 0 3px rgba(34, 100, 244, 0.15);
    outline: none;
}

/* Preview */
.code-preview-box {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f6f8fc;
    border-radius: 10px;
    padding: 24px;
    min-height: 300px;
    box-sizing: border-box;
}

/* Nút */
.code-set-btngroup {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 20px;
}

.code-set-btngroup .el-button {
    flex: 1;
    height: 46px;
    font-size: 16px;
    border-radius: 8px;
}

/* === RESPONSIVE === */

/* Desktop ≥1200px */
@media (min-width: 1200px) {
    .code-operate-container .el-row {
        flex-wrap: nowrap;
        justify-content: center;
    }
}

/* Laptop / Tablet ngang (992–1199px) */
@media (min-width: 992px) and (max-width: 1199px) {
    .code-operate-container .el-row {
        flex-wrap: nowrap;
        justify-content: center;
    }

    .code-operate-box {
        flex: 1 1 48%;
        min-width: 380px;
    }

    .code-preview-box,
    .code-data-box .el-textarea__inner {
        min-height: 320px;
    }
}

/* Tablet dọc (768–991px) */
@media (min-width: 768px) and (max-width: 991px) {
    .code-operate-container .el-row {
        flex-wrap: wrap;
        justify-content: center;
    }

    .code-operate-box {
        flex: 1 1 90%;
        max-width: 600px;
        min-width: 360px;
    }

    .code-preview-box,
    .code-data-box .el-textarea__inner {
        min-height: 300px;
    }
}

/* Mobile (<768px) */
@media (max-width: 767px) {
    .code-operate-container .el-row {
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .code-operate-box {
        width: 100%;
        max-width: 600px;
        min-width: auto;
        padding: 20px;
        margin: 0 auto;
    }

    .code-preview-box,
    .code-data-box .el-textarea__inner {
        min-height: 260px;
    }

    .code-set-btngroup {
        flex-direction: column;
    }

    .code-set-btngroup .el-button {
        width: 100%;
    }
}

/* --- FIX KHOẢNG TRẮNG TEXTAREA DƯỚI 1200PX --- */

/* Giúp khối Data chiếm toàn bộ chiều cao hộp */
.code-operate-box {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* Cho phép vùng chứa textarea mở rộng toàn bộ chiều cao còn lại */
.code-data-box-outer {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* Đảm bảo textarea chiếm đều phần giữa, không bị co lên */
.code-data-box {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: stretch;
}

.code-data-box .el-textarea {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.code-data-box .el-textarea__inner {
    flex: 1;
    min-height: 0; /* tránh bị giới hạn chiều cao */
    height: 100%;
    resize: none;
}

/* Căn đều khoảng cách giữa textarea và nút */
.code-set-btngroup {
    margin-top: 16px;
}