:root {
    --top-bar-bg: #004066;
    --top-bar-text: #ffffff;
    --header-bg: #ffffff;
    --nav-link-color: #000000;
    --nav-link-active: #ff0000;
    --search-bg: #ffffff;
    --search-text: #999999;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    padding-top: 110px;
}

.header {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.top-bar {
    width: 100%;
    background: var(--top-bar-bg);
    padding: 8px 0;
}

.top-bar-container {
    max-width: 1920px;
    width: 90%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
}

.top-bar-left {
    display: flex;
    gap: 30px;
}

.top-bar-link {
    font-family: 'Arial', 'Helvetica', sans-serif;
    font-size: 14px;
    color: var(--top-bar-text);
    text-decoration: none;
  
    letter-spacing: 1px;
    font-weight: 500;
}

.top-bar-link:hover {
    text-decoration: underline;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 30px;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-input {
    width: 180px;
    height: 26px;
    padding: 0 12px 0 30px;
    border: none;
    border-radius: 13px;
    background: var(--search-bg);
    font-family: 'Arial', 'Helvetica', sans-serif;
    font-size: 12px;
    color: var(--search-text);
}

.search-input::placeholder {
    color: var(--search-text);
}

.search-box img {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 13px;
    height: 13px;
}

.header-main {
    width: 100%;
    background: var(--header-bg);
    padding: 15px 0;
}

.header-container {
    max-width: 1920px;
    width: 90%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon img {
    height: 65px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4rem;
    margin-right: 4rem;
}

.nav-link {
    font-family: 'Arial', 'Helvetica', sans-serif;
    font-size: 14px;
    color: var(--nav-link-color);
    text-decoration: none;
    letter-spacing: 1px;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 10px 15px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    height: 40px;
    line-height: 40px;
}

.nav-link:hover {
    color: var(--nav-link-active);
}

.nav-link.active {
    color: #FF3FBEDF;
    font-weight: 600;
    background: transparent;
}

.nav-item {
    position: relative;
    display: flex;
    align-items: center;
}

.nav-item--dropdown {
    cursor: pointer;
}

.nav-dropdown {
    position: absolute;
    top: calc(100% + 15px);
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: var(--header-bg);
    min-width: 200px;
    padding: 10px 0;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1002;
}

.nav-item--dropdown:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown__item {
    display: block;
    padding: 12px 20px;
    font-family: 'Arial', 'Helvetica', sans-serif;
    font-size: 14px;
    color: var(--nav-link-color);
    text-decoration: none;
    letter-spacing: 0.5px;
    transition: all 0.2s ease;
    border-bottom: 1px solid #f5f5f5;
}

.nav-dropdown__item:last-child {
    border-bottom: none;
}

.nav-dropdown__item:hover {
    color: var(--nav-link-active);
    background: #f8f9fa;
    padding-left: 25px;
}

.nav-dropdown__item.active {
    color: #FF3FBEDF;
    font-weight: 600;
    background: #E0F4FF;
}

.nav-link-mobile {
    display: none;
}

.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
}

.mobile-search-btn {
    display: none;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-left: 10px;
}

.mobile-search-btn img {
    width: 20px;
    height: 20px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--nav-link-color);
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

@media screen and (max-width: 1024px) {
    .top-bar-container {
        gap: 20px;
    }
    
    .top-bar-left {
        gap: 20px;
    }
    
    .top-bar-link {
        font-size: 12px;
    }
    
    .search-input {
        width: 140px;
    }
    
    .nav-menu {
        gap: 30px;
    }
    
    .nav-link {
        font-size: 12px;
    }
    
    .logo-icon img {
        height: 55px;
    }
}

@media screen and (max-width: 768px) {
    body {
        padding-top: 70px;
    }
    
    .top-bar {
        display: none;
    }
    
    .nav-menu {
        display: flex;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        background: var(--header-bg);
        flex-direction: column;
        gap: 0;
        margin-right: 0;
        padding: 70px 0 20px 0;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 1001;
    }
    
    .nav-menu.active {
        display: flex;
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        font-size: 16px;
        padding: 15px 30px;
        border-bottom: 1px solid #f0f0f0;
        display: block;
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .mobile-search-btn {
        display: flex;
    }
    
    .nav-link-mobile {
        display: block;
    }
    
    .nav-item {
        height: auto;
    }
    
    .nav-item--dropdown {
        display: block;
        cursor: pointer;
    }
    
    .nav-dropdown {
        position: static;
        top: auto;
        left: auto;
        transform: none;
        opacity: 1;
        visibility: visible;
        background: transparent;
        min-width: auto;
        padding: 0;
        border-radius: 0;
        box-shadow: none;
        display: none;
        transition: none;
        z-index: auto;
    }
    
    .nav-item--dropdown.active .nav-dropdown {
        display: block;
    }
    
    .nav-dropdown__item {
        padding: 12px 30px 12px 50px;
        font-size: 14px;
        border-bottom: 1px solid #f0f0f0;
        background: #fafafa;
    }
    
    .nav-dropdown__item:last-child {
        border-bottom: 1px solid #f0f0f0;
    }
    
    .nav-dropdown__item:hover {
        background: #f0f0f0;
        padding-left: 55px;
    }
    
    .logo-icon img {
        height: 45px;
    }
}

@media screen and (max-width: 480px) {
    .top-bar-left {
        display: none;
    }
    
    .search-input {
        width: 100px;
    }
    
    .nav-menu {
        padding: 15px 0;
    }
    
    .nav-link {
        font-size: 14px;
        padding: 12px 20px;
    }
    
    .logo-icon img {
        height: 35px;
    }
    
    .mobile-menu-btn {
        width: 35px;
        height: 35px;
        gap: 5px;
    }
    
    .mobile-menu-btn span {
        width: 22px;
    }
}

.breadcrumb-bar {
    width: 100%;
    background: #f8f8f8;
    padding: 8px 0;
    border-bottom: 1px solid #e0e0e0;
}

.breadcrumb-container {
    max-width: 1920px;
    width: 90%;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Arial', 'Helvetica', sans-serif;
    font-size: 13px;
    color: #666666;
}

.breadcrumb-home {
    display: flex;
    align-items: center;
    gap: 5px;
    color: #666666;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb-home:hover {
    color: var(--nav-link-active);
}

.breadcrumb-home-icon {
    font-size: 14px;
}

.breadcrumb-separator {
    color: #999999;
    font-weight: bold;
}

.breadcrumb-current {
    color: var(--nav-link-active);
    font-weight: 600;
}