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

:root {
    --primary-color: #0e4050;
    --secondary-color: #1e6a7d;
    --accent-color: #aad4e5;
    --text-dark: #333;
    --text-muted: #718096;
    --text-gray: #4a5568;
    --border-light: #e2e8f0;
    --bg-light: #f7fafc;
    --bg-hover: #e0f0f5;
    --white: #fff;
    --transition-fast: 0.2s;
    --transition-normal: 0.3s;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 85px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: var(--white);
    padding: 8px 16px;
    z-index: 10001;
    text-decoration: none;
    border-radius: 0 0 4px 0;
}
.skip-link:focus {
    top: 0;
}

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

.header-main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: nowrap;
}

.logo {
    display: flex !important;
    align-items: center !important;
    gap: 16px !important;
    text-decoration: none !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
}
.logo-img {
    display: block;
    width: auto;
    height: 80px;
    max-width: 100%;
    object-fit: contain;
}
.logo-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    line-height: 1.2;
}
.logo-main {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}
.logo-main span {
    color: var(--secondary-color);
}
.logo-subtitle {
    font-size: 14px;
    opacity: 0.8;
    color: var(--text-muted);
    margin-top: 2px;
}
@media (max-width: 768px) {
    .logo-img { height: 64px; }
    .logo-main { font-size: 24px; }
    .logo-subtitle { font-size: 12px; }
}
@media (max-width: 550px) {
    .logo-img { height: 52px; }
    .logo-main { font-size: 20px; }
    .logo-subtitle { font-size: 10px; }
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 26px;
    color: var(--primary-color);
    cursor: pointer;
    padding: 8px;
    flex-shrink: 0;
    margin-left: auto;
}

.nav {
    display: flex;
    gap: clamp(12px, 1.8vw, 28px);
    align-items: center;
    margin: 0 auto;
}
.nav-item {
    position: relative;
}
.nav-link,
.nav-home {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: clamp(13px, 1.6vw, 15px);
    padding: 20px 0;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: color var(--transition-normal);
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    white-space: nowrap;
}
.nav-link:hover,
.nav-link:focus,
.nav-home:hover,
.nav-home:focus {
    color: var(--secondary-color);
    outline: none;
}
.nav-link i {
    font-size: 11px;
}

.mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--white);
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
    min-width: 700px;
    max-width: 90vw;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal) ease, visibility var(--transition-normal) ease;
    border-radius: 8px;
    margin-top: 10px;
    display: flex;
    overflow: hidden;
    z-index: 100;
}
.nav-item:hover .mega-menu,
.nav-item:focus-within .mega-menu,
.nav-item.menu-hover .mega-menu {
    opacity: 1;
    visibility: visible;
}

.mega-menu-categories {
    background: var(--bg-light);
    width: 250px;
    padding: 20px 0;
}
.mega-category {
    padding: 12px 25px;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-gray);
    font-weight: 500;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    font-family: inherit;
    font-size: 14px;
}
.mega-category:hover,
.mega-category:focus,
.mega-category.active {
    background: var(--white);
    color: var(--secondary-color);
    outline: none;
}
.mega-category i {
    font-size: 12px;
}

.mega-menu-items {
    flex: 1;
    padding: 25px 30px;
}
.mega-items-group {
    display: none;
}
.mega-items-group.active {
    display: block;
}
.mega-item-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.mega-item {
    color: var(--text-gray);
    text-decoration: none;
    padding: 10px 15px;
    border-radius: 6px;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}
.mega-item:hover,
.mega-item:focus {
    background: var(--bg-hover);
    color: var(--secondary-color);
    outline: 2px solid var(--secondary-color);
    outline-offset: -2px;
}
.mega-item i {
    color: var(--secondary-color);
    font-size: 14px;
}
.mega-more {
    color: var(--secondary-color);
    font-weight: 600;
}
.simple-dropdown {
    min-width: 220px !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
}
.simple-dropdown .mega-menu-items {
    width: 100% !important;
    padding: 15px !important;
}
.simple-dropdown .mega-item-list {
    grid-template-columns: 1fr !important;
}
.mega-menu.services-two-column {
    min-width: 780px;
    width: max-content;
    max-width: none;
}
.mega-menu.services-two-column .mega-item-list {
    display: grid;
    grid-template-columns: repeat(2, auto);
    gap: 8px 20px;
}
.mega-menu.services-two-column .mega-item {
    white-space: nowrap;
}
.mega-menu.products-four-column {
    min-width: 320px;
    width: max-content;
}

.nav-search-box {
    position: relative;
    display: flex;
    align-items: center;
    border: 1px solid var(--border-light);
    border-radius: 40px;
    background: var(--white);
    margin-left: 8px;
    transition: all var(--transition-normal);
    height: 36px;
    flex-shrink: 0;
}
.nav-search-box:focus-within {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(30,106,125,0.1);
}
.nav-search-input-inline {
    border: none;
    background: transparent;
    padding: 8px 12px;
    font-size: 13px;
    outline: none;
    color: var(--text-dark);
    width: 110px;
    transition: width 0.25s;
}
.nav-search-input-inline:focus {
    width: 160px;
}
.nav-search-input-inline::placeholder {
    color: #a0aec0;
}
.nav-search-inline-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 8px 12px 8px 4px;
    cursor: pointer;
    transition: color var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}
.nav-search-inline-btn:hover {
    color: var(--secondary-color);
}

.search-suggestions {
    position: absolute;
    top: calc(100% + 8px);
    left: -170px;
    width: 520px;
    max-width: calc(100vw - 40px);
    min-width: 100%;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 12px 50px rgba(0,0,0,0.18);
    max-height: 460px;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 1000;
    border: 1px solid #edf2f7;
    display: none;
    padding: 6px 0;
    scrollbar-width: thin;
    scrollbar-color: var(--secondary-color) #f7fafc;
}
.search-suggestions::-webkit-scrollbar {
    width: 8px;
}
.search-suggestions::-webkit-scrollbar-track {
    background: #f7fafc;
    border-radius: 0 14px 14px 0;
    margin: 6px 0;
}
.search-suggestions::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 10px;
    border: 2px solid #f7fafc;
    opacity: 0.8;
    transition: all 0.2s;
}
.search-suggestions::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
    opacity: 1;
}
.suggestions-section {
    padding: 4px 0;
}
.search-suggestions-title {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    padding: 6px 18px 10px;
    display: flex;
    align-items: center;
    gap: 6px;
    border-bottom: 1px solid #f1f5f9;
    margin-bottom: 2px;
}
.search-suggestions-title i {
    font-size: 10px;
    color: var(--secondary-color);
}
.search-suggestions-title .section-sub {
    color: #cbd5e0;
    font-weight: 400;
    font-size: 10px;
    margin-left: 4px;
    text-transform: none;
    letter-spacing: 0;
}
.history-list {
    padding: 2px 10px;
}
.history-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.15s ease;
    font-size: 14px;
    color: var(--primary-color);
    margin-bottom: 2px;
}
.history-item:hover {
    background: #f0f7fa;
}
.history-item i.fa-clock {
    color: #cbd5e0;
    font-size: 12px;
    width: 16px;
    text-align: center;
}
.history-item .history-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: 500;
}
.history-item .remove-history {
    margin-left: auto;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #cbd5e0;
    font-size: 10px;
    opacity: 0;
    transition: all 0.2s;
    cursor: pointer;
    flex-shrink: 0;
}
.history-item:hover .remove-history {
    opacity: 1;
}
.history-item .remove-history:hover {
    background: #fee2e2;
    color: #e53e3e;
}
.clear-history-btn {
    display: block;
    width: calc(100% - 36px);
    margin: 10px 18px 6px;
    padding: 8px;
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    background: #f8fafc;
    border: 1px solid #e2edf2;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: 'Inter', sans-serif;
}
.clear-history-btn:hover {
    background: #edf2f7;
    color: var(--primary-color);
    border-color: #cbd5e0;
}
.results-list {
    padding: 2px 0;
}
.suggestion-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 11px 18px;
    cursor: pointer;
    border-bottom: 1px solid #f8fafc;
    transition: all 0.15s ease;
    text-decoration: none;
    color: inherit;
}
.suggestion-item:last-child {
    border-bottom: none;
}
.suggestion-item:hover {
    background: #f0f7f9;
}
.suggestion-catalog {
    font-size: 11px;
    font-weight: 700;
    color: var(--secondary-color);
    background: #e6f4f1;
    padding: 4px 9px;
    border-radius: 8px;
    white-space: nowrap;
    margin-top: 1px;
    flex-shrink: 0;
    font-family: 'Courier New', monospace;
    letter-spacing: 0.3px;
}
.suggestion-name {
    font-size: 14px;
    color: var(--primary-color);
    line-height: 1.5;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    word-break: break-word;
    font-weight: 500;
    padding-right: 4px;
}
.suggestions-empty {
    padding: 35px 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

.footer {
    background: #1a202c;
    color: var(--white);
    padding: 40px 40px 20px;
}
.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 30px;
}
.footer-brand .logo-main {
    color: var(--white);
    font-size: 24px;
}
.footer-brand .logo-main span {
    color: var(--accent-color);
}
.legal-notice {
    font-size: 12px;
    color: #a0aec0;
    margin-top: 12px;
}
.footer-bottom {
    max-width: 1400px;
    margin: 20px auto 0;
    padding-top: 15px;
    border-top: 1px solid #2d3748;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}
.social-links {
    display: flex;
    gap: 15px;
}
.social-links a {
    width: 40px;
    height: 40px;
    background: #2d3748;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: all var(--transition-normal);
}
.footer-column ul {
    list-style: none;
}
.footer-column a {
    color: #cbd5e0;
    text-decoration: none;
    font-size: 14px;
}
.friend-links-wrapper {
    max-width: 1400px;
    margin: 20px auto 0;
    padding: 6px 0;
    background: #1a202c;
}
.friend-links-container {
    display: flex;
    justify-content: flex-start;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 8px 28px;
    font-size: 13px;
}
.friend-link-label {
    color: #8aaebc;
    font-weight: 500;
    letter-spacing: 0.5px;
    margin-right: 4px;
}
.friend-links-container a {
    color: #bdd8e2;
    text-decoration: none;
    transition: color 0.2s ease;
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.friend-links-container a i {
    font-size: 12px;
    color: #6fa8bc;
}
.friend-links-container a:hover {
    color: #ffffff;
}
.friend-links-container a:hover i {
    color: var(--secondary-color);
}
.footer-hr {
    margin: 0;
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}
@media (max-width: 768px) {
    .footer {
        padding: 30px 20px 15px;
    }
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 20px;
    }
    .friend-links-wrapper {
        margin: 16px auto 0;
        padding: 4px 0;
    }
    .friend-links-container {
        gap: 6px 18px;
    }
    .friend-link-label, .friend-links-container a {
        font-size: 11px;
    }
}

.float-bar {
    position: fixed;
    right: 20px;
    bottom: 20%;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
}
.float-btn {
    width: 52px;
    height: 52px;
    border-radius: 30px;
    background: white;
    box-shadow: 0 4px 15px rgba(14,64,80,0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--primary-color);
    font-size: 10px;
    font-weight: 500;
    line-height: 1.2;
    white-space: nowrap;
    transition: all var(--transition-normal) ease;
    border: none;
    cursor: pointer;
    outline: none;
}
.float-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(14,64,80,0.25);
}
.float-btn:focus-visible {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}
.float-btn.top-btn {
    background: var(--primary-color);
    color: white;
}

.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(2px);
    z-index: 998;
}
.mobile-overlay.active {
    display: block;
}
.mobile-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 85%;
    max-width: 320px;
    height: 100vh;
    background: #ffffff;
    z-index: 999;
    padding: 20px 0 40px;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition-normal) cubic-bezier(0.2, 0.9, 0.4, 1.1);
    box-shadow: -5px 0 25px rgba(0,0,0,0.08);
    display: flex;
    flex-direction: column;
}
.mobile-nav.active {
    transform: translateX(0);
}
.mobile-nav-header {
    display: flex;
    justify-content: flex-end;
    padding: 12px 20px;
    border-bottom: 1px solid #eef2f6;
    margin-bottom: 20px;
}
.mobile-nav-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--primary-color);
    cursor: pointer;
}
.mobile-nav-item {
    border-bottom: 1px solid #f0f2f5;
    margin: 0 16px;
}
.mobile-nav-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 8px;
    color: #1f2a3e;
    font-weight: 500;
    font-size: 16px;
    text-decoration: none;
    background: none;
    border: none;
    width: 100%;
    cursor: pointer;
}
.mobile-nav-link i {
    font-size: 14px;
    color: #8a9bb5;
    transition: transform var(--transition-fast);
}
.mobile-submenu {
    display: none;
    padding: 8px 0 16px 20px;
    background: #fafcff;
    border-radius: 12px;
    margin-top: -8px;
    margin-bottom: 8px;
}
.mobile-submenu.active {
    display: block;
}
.mobile-submenu a {
    display: block;
    padding: 12px 12px;
    color: #4a5b7a;
    font-size: 14px;
    text-decoration: none;
    border-radius: 10px;
}

.privacy-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.6);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    display: none;
}
.privacy-modal-content {
    background: var(--white);
    width: 90%;
    max-width: 800px;
    max-height: 85vh;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 35px rgba(0,0,0,0.3);
    animation: modalFadeIn var(--transition-normal) ease;
}
@keyframes modalFadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}
.privacy-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-light);
    background: var(--primary-color);
    color: var(--white);
}
.privacy-modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
}
.privacy-modal-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--white);
    transition: color var(--transition-fast);
    line-height: 1;
}
.privacy-modal-close:hover {
    color: var(--accent-color);
}
.privacy-modal-body {
    padding: 24px 32px;
    overflow-y: auto;
    flex: 1;
    line-height: 1.6;
    color: var(--text-dark);
}
.privacy-modal-body h3 {
    font-size: 1.4rem;
    margin-bottom: 16px;
    color: var(--primary-color);
}
.privacy-modal-body h4 {
    font-size: 1.1rem;
    margin: 20px 0 10px;
    color: var(--primary-color);
}
.privacy-modal-body p {
    margin-bottom: 12px;
}
.privacy-modal-body ul {
    margin: 8px 0 16px 20px;
}
.privacy-modal-body li {
    margin-bottom: 6px;
}

@media (max-width: 992px) {
    .header-main {
        padding: 10px 20px;
    }
    .nav {
        display: none;
    }
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }
    .mega-menu.services-two-column {
        min-width: 480px;
        max-width: 90vw;
    }
}
@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .float-btn {
        width: 44px;
        height: 44px;
    }
    .mega-menu.services-two-column {
        min-width: 260px;
    }
    .mega-menu.services-two-column .mega-item-list {
        grid-template-columns: 1fr;
    }
    .search-suggestions {
        width: 100%;
        left: 0;
        right: 0;
        max-height: 380px;
    }
}