/**
 * Documentation and Manuals Page Enhanced Styles
 * Responsive design with sticky sidebar and mobile navigation
 */

/* ========================================
   Desktop Sticky Sidebar Implementation
   ======================================== */
@media (min-width: 992px) {
    .sidebar-sticky-wrapper {
        position: relative;
        height: 100%;
    }

    .sidebar-sticky {
        position: sticky;
        top: 20px;
        max-height: calc(100vh - 40px);
        overflow-y: auto;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }


    /* Firefox scrollbar support */
    .sidebar-sticky {
        scrollbar-width: thin;
        scrollbar-color: var(--thm-ase) var(--thm-f3);
    }
}

/* ========================================
   Mobile Navigation Styles
   ======================================== */
.manuals-mobile-nav {
    display: none;
}

@media (max-width: 991px) {
    .manuals-mobile-nav {
        display: block;
        background: var(--color-white, #fff);
        border-bottom: 2px solid var(--thm-f3, #f3f3f3);
        position: sticky;
        top: 48px;
        z-index: 100;
        margin: -15px -15px 20px -15px;
        padding: 0;
        box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .mobile-nav-wrapper {
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
        padding: 0 15px;
    }

    /* Safari/Chrome/WebKit 隐藏滚动条 */
    .mobile-nav-wrapper::-webkit-scrollbar {
        display: none;
        width: 0;
        height: 0;
    }


    .mobile-nav-list {
        display: flex;
        flex-wrap: nowrap;
        padding: 12px 0;
        margin: 0;
        list-style: none;
        gap: 10px;
        min-width: min-content;
    }

    .mobile-nav-item {
        flex: 0 0 auto;
    }

    .mobile-nav-btn {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: 14px 18px;
        border: 2px solid var(--thm-f3, #f3f3f3);
        border-radius: 12px;
        background: var(--color-white, #fff);
        color: var(--thm-gray, #8e8e8e);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        min-width: 100px;
        cursor: pointer;
        position: relative;
        overflow: hidden;
        white-space: nowrap;
    }

    .mobile-nav-btn i {
        font-size: 1.5rem;
        margin-bottom: 6px;
        transition: transform 0.3s ease;
    }

    .mobile-nav-btn span {
        font-size: 12px;
        font-weight: 500;
        letter-spacing: 0.02em;
    }

    .mobile-nav-btn::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: var(--thm-line);
        transform: translateY(100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: -1;
    }

    .mobile-nav-btn.active::before {
        transform: translateY(0);
    }

    .mobile-nav-btn.active {
        color: var(--color-white, #fff);
        border-color: transparent;
    }

    .mobile-nav-btn.active i {
        transform: scale(1.1);
    }

    /* Hide desktop sidebar on mobile */
    .col-xxl-3.col-xl-3.col-lg-3 {
        display: none !important;
    }

    /* Full width content on mobile */
    .col-xxl-9.col-xl-9.col-lg-9 {
        width: 100%;
        padding: 0;
    }
}

/* ========================================
   Manual Item Styles
   ======================================== */
.manual-item {
    background: var(--color-white, #fff);
    border: 1px solid var(--thm-f3, #f3f3f3);
    border-radius: 12px;
    margin-bottom: 15px;
    transition: all 0.3s ease;
    overflow: hidden;
}

.manual-item:hover {
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
    border-color: var(--thm-base, #55C6EF);
}

.manual-info {
    padding: 5px 0;
}

.manual-title {
    color: var(--thm-black, #14296C);
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: color 0.3s ease;
}

.manual-item:hover .manual-title {
    color: var(--thm-base, #55C6EF);
}

.manual-title i {
    color: var(--thm-base, #55C6EF);
    font-size: 18px;
}

.manual-description {
    font-size: 14px;
    line-height: 1.6;
    color: var(--thm-gray, #8e8e8e);
}

/* ========================================
   Sidebar Widget Styles
   ======================================== */
.atf-sidebar-widget {
    background: var(--color-white, #fff);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.08);
}

.atf-widget-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--thm-black, #14296C);
    margin-bottom: 20px;
    padding-bottom: 12px;
    position: relative;
}

.atf-widget-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: var(--thm-line);
    transition: width 0.3s ease;
}

.atf-sidebar-widget:hover .atf-widget-title::after {
    width: 100%;
}

.atf-sidebar-widget .list-group-item {
    border: none;
    padding: 14px 18px;
    margin-bottom: 8px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--thm-f6, #F1F8FF);
    position: relative;
    overflow: hidden;
}

.atf-sidebar-widget .list-group-item:hover {
    background: var(--thm-f3, #f3f3f3);
    transform: translateX(8px);
}

.atf-sidebar-widget .list-group-item.active {
    background: var(--thm-line);
    color: var(--color-white, #fff);
    font-weight: 500;
}

/* ========================================
   Content Area Styles
   ======================================== */
.tab-content {
    background: var(--color-white, #fff);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.08);
    min-height: 600px;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-pane {
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ========================================
   Action Button Styles
   ======================================== */
.atf-themes-btn {
    background: var(--thm-line);
    color: var(--color-white, #fff);
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 500;
    position: relative;
    overflow: hidden;
}

.atf-themes-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.atf-themes-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(31, 114, 195, 0.4);
    color: var(--color-white, #fff);
}

.atf-themes-btn:hover::before {
    width: 300px;
    height: 300px;
}

.atf-themes-btn i {
    font-size: 16px;
}

/* Video trigger button specific styles */
.video-trigger {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.video-trigger:hover {
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

/* ========================================
   Video Modal Styles
   ======================================== */
.modal-content {
    border: none;
    border-radius: 15px;
    overflow: hidden;
}

.modal-header {
    background: var(--thm-line);
    color: var(--color-white, #fff);
    border: none;
    padding: 15px 20px;
}

.modal-header .btn-close {
    filter: brightness(0) invert(1);
    opacity: 0.8;
}

.modal-header .btn-close:hover {
    opacity: 1;
}

.modal-body video {
    width: 100%;
    height: auto;
    display: block;
}

/* ========================================
   Loading and Error States
   ======================================== */
.spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3em;
}

.list-group-item.text-center {
    padding: 40px;
    background: var(--thm-f6, #F1F8FF);
    border-radius: 12px;
}

.list-group-item.text-danger {
    color: var(--color-orange, #8c3743) !important;
}

/* ========================================
   Responsive Adjustments
   ======================================== */
@media (max-width: 768px) {
    .atf-section-padding {
        padding: 40px 0;
    }

    .manuals-mobile-nav {
        margin: -10px -10px 15px -10px;
    }

    .mobile-nav-btn {
        min-width: 90px;
        padding: 12px 15px;
    }

    .mobile-nav-btn i {
        font-size: 1.3rem;
    }

    .mobile-nav-btn span {
        font-size: 11px;
    }

    .tab-content {
        padding: 20px 15px;
        border-radius: 10px;
    }

    .manual-item {
        margin-bottom: 10px;
    }

    .manual-title {
        font-size: 15px;
    }

    .manual-description {
        font-size: 13px;
    }
}

@media (max-width: 576px) {
    .manuals-mobile-nav {
        margin: -5px -5px 10px -5px;
    }

    .mobile-nav-list {
        gap: 6px;
        padding: 10px 0;
    }

    .mobile-nav-btn {
        min-width: 80px;
        padding: 10px 12px;
    }

    .atf-themes-btn {
        padding: 10px 18px;
        font-size: 14px;
    }
}


/* ========================================
   Print Styles
   ======================================== */
@media print {
    .manuals-mobile-nav,
    .col-xxl-3.col-xl-3.col-lg-3,
    .atf-themes-btn {
        display: none !important;
    }

    .col-xxl-9.col-xl-9.col-lg-9 {
        width: 100% !important;
    }

    .tab-pane {
        display: block !important;
        opacity: 1 !important;
        page-break-inside: avoid;
    }

    .manual-item {
        page-break-inside: avoid;
        border: 1px solid #ddd;
        margin-bottom: 10px;
    }
}


@media (min-width: 992px) {
    .manual-sidebar {
        background: var(--color-white, #fff);
        border-radius: 15px;
        padding: 25px;
        box-shadow: 0 5px 30px rgba(0, 0, 0, 0.08);
        position: sticky;
        top: 120px;
        max-height: calc(100vh - 140px);
        overflow-y: auto;
    }

    /* 移除其他元素的sticky定位 */
    .sidebar-sticky-wrapper,
    .sidebar-sticky {
        position: relative !important;
    }
}

/* ============================================================
   V2 Manual Page Overrides
   说明：
   - 手册页统一移动导航、手册卡片和侧边栏控件。
   ============================================================ */

.manuals-mobile-nav,
.manual-item,
.atf-sidebar-widget,
.manual-sidebar {
    background: var(--v2-bg-primary);
    border: 1px solid var(--v2-bg-divider);
    border-radius: var(--v2-radius-lg);
    box-shadow: var(--v2-shadow-card);
}

.mobile-nav-btn {
    border-color: var(--v2-bg-divider);
    color: var(--v2-text-secondary);
}

.mobile-nav-btn::before {
    background: var(--v2-primary-500);
}

.mobile-nav-btn.active,
.manual-item:hover .manual-title,
.manual-title i {
    color: var(--v2-primary-500);
}

.manual-item:hover {
    border-color: var(--v2-primary-200);
    box-shadow: var(--v2-shadow-card-hover);
}

/* Manual page V2 alignment */
.atf-page-heading[style*="--manual-ban-bg"] .atf-page-heading-title {
    color: var(--v2-text-inverse) !important;
    font-weight: 500;
    text-shadow: 0 14px 34px rgba(var(--v2-bg-dark-rgb), 0.38);
}

.atf-page-heading[style*="--manual-ban-bg"] .atf-post-label {
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(var(--v2-bg-dark-rgb), 0.18);
    box-shadow: var(--v2-shadow-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.atf-page-heading[style*="--manual-ban-bg"] .atf-post-label,
.atf-page-heading[style*="--manual-ban-bg"] .atf-post-label > span,
.atf-page-heading[style*="--manual-ban-bg"] .atf-post-label > span a,
.atf-page-heading[style*="--manual-ban-bg"] .atf-post-label > span:last-child,
.atf-page-heading[style*="--manual-ban-bg"] .atf-post-label > span:not(:has(a)),
.atf-page-heading[style*="--manual-ban-bg"] .atf-post-label > span:not(:last-child)::after {
    color: rgba(255, 255, 255, 0.9) !important;
}

.manuals-mobile-nav,
.manual-item,
.manual-sidebar,
.atf-sidebar-widget,
.tab-content,
.modal-content,
.list-group-item.text-center,
.atf-sidebar-widget .list-group-item,
.manual-list .list-group-item {
    border-radius: 8px;
}

.mobile-nav-btn {
    border-radius: 8px;
}

.atf-widget-title,
.manual-sidebar .atf-widget-title,
.content-header .atf-widget-title {
    font-size: 24px;
    line-height: 32px;
    font-weight: 500;
    color: var(--v2-text-heading);
    letter-spacing: 0;
}

.manual-list .list-group-item,
.manual-item,
.manual-description,
.content-header .text-muted {
    font-size: 16px;
    line-height: 24px;
}

.manual-title {
    font-size: 18px;
    line-height: 26px;
    font-weight: 500;
}

@media (max-width: 767px) {
    .atf-widget-title,
    .manual-sidebar .atf-widget-title,
    .content-header .atf-widget-title {
        font-size: 20px;
        line-height: 28px;
        font-weight: 500;
    }

    .mobile-nav-btn {
        padding: 10px 12px;
    }
}

/* Sales policy page visual alignment */
.atf-page-heading[style*="--sales-policy-ban-bg"] + #about .wow,
#about .atf-section-title {
    visibility: visible !important;
}

.atf-page-heading[style*="--sales-policy-ban-bg"] + #about .atf-section-title h5 {
    font-size: 20px;
    line-height: 28px;
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0;
    border-radius: 8px;
}

.atf-page-heading[style*="--sales-policy-ban-bg"] + #about .atf-section-title h2 {
    font-size: 32px;
    line-height: 40px;
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0;
}

.atf-page-heading[style*="--sales-policy-ban-bg"] + #about .atf-section-title p {
    font-size: 16px;
    line-height: 24px;
}

.atf-page-heading[style*="--sales-policy-ban-bg"] + #about + .atf-Subscribe-area .atf-subscribe-panel,
.atf-page-heading[style*="--sales-policy-ban-bg"] + #about + .atf-Subscribe-area .atf-subscribe-form,
.atf-page-heading[style*="--sales-policy-ban-bg"] + #about + .atf-Subscribe-area .atf-subscribe-input,
.atf-page-heading[style*="--sales-policy-ban-bg"] + #about + .atf-Subscribe-area .atf-subscribe-btn {
    border-radius: 8px;
}

.atf-page-heading[style*="--sales-policy-ban-bg"] + #about + .atf-Subscribe-area .atf-subscribe-copy h3 {
    font-size: 24px;
    line-height: 32px;
    font-weight: 500;
}

.atf-page-heading[style*="--sales-policy-ban-bg"] + #about + .atf-Subscribe-area .atf-subscribe-input,
.atf-page-heading[style*="--sales-policy-ban-bg"] + #about + .atf-Subscribe-area .atf-subscribe-btn {
    font-size: 16px;
    line-height: 24px;
}

@media (max-width: 767px) {
    .atf-page-heading[style*="--sales-policy-ban-bg"] + #about .atf-section-title h5,
    .atf-page-heading[style*="--sales-policy-ban-bg"] + #about .atf-section-title h2,
    .atf-page-heading[style*="--sales-policy-ban-bg"] + #about + .atf-Subscribe-area .atf-subscribe-copy h3 {
        font-size: 20px;
        line-height: 28px;
        font-weight: 500;
    }

    .atf-page-heading[style*="--sales-policy-ban-bg"] + #about .atf-section-title h2 {
        font-size: 24px;
        line-height: 32px;
    }
}

/* ============================================================
   Manuals product catalog navigation
   ============================================================ */

.manuals-catalog-section {
    background: var(--v2-bg-secondary, #f4f6f9);
}

.manuals-catalog-section .manuals-layout-row {
    align-items: flex-start;
}

.manuals-catalog-section .manual-sidebar,
.manuals-catalog-section .tab-content {
    border: 1px solid var(--v2-bg-divider, #e3e8ef);
    border-radius: var(--v2-radius-lg, 12px);
    background: var(--v2-bg-primary, #fff);
    box-shadow: var(--v2-shadow-card, 0 10px 30px rgba(26, 48, 82, 0.08));
}

.manuals-catalog-section .manual-sidebar {
    padding: 20px;
}

.manuals-catalog-section .manual-sidebar .atf-widget-title {
    margin-bottom: 16px;
}

.manuals-desktop-menu,
.manuals-desktop-submenu,
.manuals-mobile-nav-list {
    margin: 0;
    padding: 0;
    list-style: none;
}

.manuals-desktop-menu {
    display: grid;
    gap: 8px;
}

.manuals-desktop-parent,
.manuals-desktop-primary,
.manuals-desktop-child {
    width: 100%;
    min-height: 44px;
    border: 1px solid transparent;
    color: var(--v2-text-heading, #18202b);
    background: transparent;
    font: inherit;
    text-align: left;
    cursor: pointer;
    transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.manuals-desktop-parent,
.manuals-desktop-primary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--v2-radius-md, 8px);
    font-size: 15px;
    line-height: 22px;
    font-weight: 500;
}

.manuals-desktop-label {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.manuals-desktop-label > i {
    flex: 0 0 20px;
    width: 20px;
    color: var(--v2-primary-500, #2f6bd9);
    text-align: center;
}

.manuals-desktop-parent:hover,
.manuals-desktop-primary:hover,
.manuals-desktop-child:hover {
    border-color: var(--v2-primary-100, #dce8ff);
    background: var(--v2-primary-50, #f1f6ff);
    color: var(--v2-primary-600, #2459bd);
}

.manuals-desktop-parent.active,
.manuals-desktop-primary.active {
    border-color: var(--v2-primary-100, #dce8ff);
    background: var(--v2-primary-50, #f1f6ff);
    color: var(--v2-primary-600, #2459bd);
}

.manuals-desktop-chevron {
    flex: 0 0 auto;
    font-size: 12px;
    transition: transform 180ms ease;
}

.manuals-desktop-menu-item.open .manuals-desktop-chevron {
    transform: rotate(180deg);
}

.manuals-desktop-submenu {
    display: none;
    gap: 4px;
    margin-top: 4px;
    padding: 4px 0 4px 30px;
}

.manuals-desktop-menu-item.open .manuals-desktop-submenu {
    display: grid;
}

.manuals-desktop-child {
    position: relative;
    padding: 9px 12px;
    border-radius: var(--v2-radius-sm, 6px);
    color: var(--v2-text-secondary, #596579);
    font-size: 14px;
    line-height: 20px;
}

.manuals-desktop-child::before {
    position: absolute;
    top: 50%;
    left: -14px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--v2-bg-divider, #d9e0e8);
    content: '';
    transform: translateY(-50%);
}

.manuals-desktop-child.active {
    color: var(--v2-primary-600, #2459bd);
    background: var(--v2-primary-50, #f1f6ff);
    font-weight: 600;
}

.manuals-desktop-child.active::before {
    background: var(--v2-primary-500, #2f6bd9);
}

.manuals-desktop-parent:focus-visible,
.manuals-desktop-primary:focus-visible,
.manuals-desktop-child:focus-visible,
.manuals-nav-button:focus-visible,
.manuals-catalog-section .atf-themes-btn:focus-visible,
.manuals-catalog-section [data-manual-reload]:focus-visible {
    outline: 3px solid rgba(47, 107, 217, 0.3);
    outline-offset: 2px;
}

.manuals-catalog-section .tab-content {
    min-height: 520px;
    padding: 28px;
    animation: none;
}

.manuals-catalog-section .tab-pane {
    animation: none;
}

.manuals-catalog-section .content-header {
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--v2-bg-divider, #e3e8ef);
}

.manuals-catalog-section .content-header .atf-widget-title {
    margin: 0;
    padding: 0;
}

.manuals-catalog-section .content-header .atf-widget-title::after {
    display: none;
}

.manuals-catalog-section .manual-list {
    display: grid;
    gap: 12px;
}

.manuals-catalog-section .manual-item {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr) auto;
    align-items: center;
    gap: 16px;
    min-height: 88px;
    margin: 0;
    padding: 16px;
    border: 1px solid var(--v2-bg-divider, #e3e8ef);
    border-radius: var(--v2-radius-md, 8px);
    background: var(--v2-bg-primary, #fff);
    box-shadow: none;
    transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.manuals-catalog-section .manual-item:hover {
    border-color: var(--v2-primary-200, #b9d0fa);
    box-shadow: var(--v2-shadow-card-hover, 0 12px 32px rgba(26, 48, 82, 0.12));
    transform: translateY(-2px);
}

.manual-card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--v2-radius-md, 8px);
    color: var(--v2-primary-600, #2459bd);
    background: var(--v2-primary-50, #f1f6ff);
    font-size: 20px;
}

.manuals-catalog-section .manual-info {
    min-width: 0;
    padding: 0;
}

.manuals-catalog-section .manual-title {
    display: block;
    margin: 0 0 4px;
    color: var(--v2-text-heading, #18202b);
    font-size: 17px;
    line-height: 24px;
    font-weight: 600;
}

.manuals-catalog-section .manual-description {
    margin: 0;
    color: var(--v2-text-secondary, #596579);
    font-size: 14px;
    line-height: 22px;
}

.manuals-catalog-section .atf-themes-btn {
    min-width: 132px;
    min-height: 44px;
    padding: 10px 16px;
    border-radius: var(--v2-radius-md, 8px);
    white-space: nowrap;
}

.manuals-catalog-section .atf-themes-btn:hover {
    box-shadow: 0 8px 20px rgba(47, 107, 217, 0.24);
    transform: translateY(-1px);
}

.manual-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    min-height: 180px;
    padding: 32px;
    border: 1px dashed var(--v2-bg-divider, #d9e0e8);
    border-radius: var(--v2-radius-md, 8px);
    color: var(--v2-text-secondary, #596579);
    background: var(--v2-bg-secondary, #f4f6f9);
    text-align: center;
}

.manual-state > i {
    color: var(--v2-primary-500, #2f6bd9);
    font-size: 28px;
}

.manual-state > p {
    margin: 0;
}

.manual-error-state > i,
.manual-error-state > p {
    color: var(--v2-error-500, #c64242);
}

@media (min-width: 992px) {
    .manuals-catalog-section .manual-sidebar {
        top: 104px;
        max-height: calc(100vh - 128px);
        overflow-y: auto;
        scrollbar-width: thin;
        scrollbar-color: var(--v2-bg-divider, #d9e0e8) transparent;
    }

    .manuals-mobile-nav {
        display: none !important;
    }
}

@media (max-width: 991px) {
    .manuals-catalog-section {
        padding-top: 0;
    }

    .manuals-catalog-section > .container {
        max-width: 100%;
        padding-right: 12px;
        padding-left: 12px;
    }

    .manuals-catalog-section .manuals-layout-row {
        margin-right: 0;
        margin-left: 0;
        margin-top: 16px;
    }

    .manuals-catalog-section .desktop-sidebar {
        display: none !important;
    }

    .manuals-catalog-section .content-area {
        width: 100%;
    }

    .manuals-mobile-nav {
        position: sticky;
        top: 48px;
        z-index: 100;
        display: block;
        margin: 0 -12px;
        padding: 8px 0;
        border: 0;
        border-bottom: 1px solid var(--v2-bg-divider, #e3e8ef);
        border-radius: 0;
        background: rgba(255, 255, 255, 0.96);
        box-shadow: 0 8px 22px rgba(26, 48, 82, 0.08);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
    }

    .manuals-mobile-nav-row {
        overflow-x: auto;
        overflow-y: hidden;
        padding: 0 12px;
        scrollbar-width: none;
        -ms-overflow-style: none;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior-inline: contain;
    }

    .manuals-mobile-nav-row::-webkit-scrollbar {
        display: none;
        width: 0;
        height: 0;
    }

    .manuals-mobile-secondary-wrapper {
        margin-top: 8px;
        padding-top: 8px;
        border-top: 1px solid var(--v2-bg-divider, #e3e8ef);
    }

    .manuals-mobile-secondary-wrapper.is-hidden {
        display: none;
    }

    .manuals-mobile-nav-list {
        display: flex;
        flex-wrap: nowrap;
        gap: 8px;
        min-width: max-content;
    }

    .manuals-mobile-nav-item {
        flex: 0 0 auto;
    }

    .manuals-mobile-primary-button,
    .manuals-mobile-secondary-button {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        min-height: 44px;
        padding: 9px 14px;
        border: 1px solid var(--v2-bg-divider, #d9e0e8);
        border-radius: 999px;
        color: var(--v2-text-heading, #18202b);
        background: var(--v2-bg-primary, #fff);
        font-size: 14px;
        line-height: 20px;
        font-weight: 600;
        white-space: nowrap;
        cursor: pointer;
        touch-action: manipulation;
        transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease;
        scroll-snap-align: center;
    }

    .manuals-mobile-primary-button.active,
    .manuals-mobile-secondary-button.active {
        border-color: var(--v2-primary-500, #2f6bd9);
        color: var(--v2-text-inverse, #fff);
        background: var(--v2-primary-500, #2f6bd9);
    }

    .manuals-mobile-secondary-button {
        min-height: 44px;
        padding: 8px 13px;
        color: var(--v2-text-secondary, #596579);
        font-size: 13px;
    }

    .manuals-catalog-section .tab-content {
        min-height: 420px;
        padding: 20px;
    }
}

@media (max-width: 767px) {
    .manuals-catalog-section .content-area {
        padding-right: 0;
        padding-left: 0;
    }

    .manuals-catalog-section .tab-content {
        padding: 16px;
    }

    .manuals-catalog-section .content-header {
        margin-bottom: 16px;
        padding-bottom: 12px;
    }

    .manuals-catalog-section .manual-list {
        gap: 10px;
    }

    .manuals-catalog-section .manual-item {
        grid-template-columns: 40px minmax(0, 1fr);
        gap: 12px;
        padding: 14px;
    }

    .manual-card-icon {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }

    .manuals-catalog-section .manual-title {
        font-size: 16px;
        line-height: 23px;
    }

    .manuals-catalog-section .manual-description {
        font-size: 14px;
        line-height: 21px;
    }

    .manuals-catalog-section .atf-themes-btn {
        grid-column: 1 / -1;
        width: 100%;
        min-width: 0;
        margin-top: 2px;
    }

    .manual-state {
        min-height: 160px;
        padding: 24px 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .manuals-catalog-section *,
    .manuals-catalog-section *::before,
    .manuals-catalog-section *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}