:root {
    --logo-size: 18px;
    --logo-color: #333333;
    --nav-size: 14px;
    --primary-color: #14a800;
    --secondary-color: #ff6c37;
    --white: #ffffff;
    --light-gray: #f5f5f5;
    --medium-gray: #e0e0e0;
    --dark-gray: #181818;
    --text-color: #333333;
    --text-light: #666666;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

a {
    text-decoration: none;
    color: var(--text-color);
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    overflow-x: hidden;
}

.ellipsis {
  white-space: nowrap;     /* 禁止换行 */
  overflow: hidden;        /* 超出隐藏 */
  text-overflow: ellipsis; /* 显示省略号... */
  width: 100%;             /* 必须给宽度！ */
  display: block;          /* 行内元素需要加 */
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: var(--white);
    border-bottom: 1px solid var(--medium-gray);
    /* box-shadow: var(--shadow); */
    position: sticky;
    top: 0;
    z-index: 1000;
    height: 70px;
}

.header-nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 0;
    height: 100%;
}

.header-nav-left {
    display: flex;
    align-items: center;
    gap: 50px;
    height: 100%;
}

.header-nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.home-logo {
    font-size: var(--logo-size);
    font-weight: bold;
    color: var(--logo-color);
    text-decoration: none;
}

.header-nav-menu {
    display: flex;
    list-style: none;
    gap: 0px;
    height: 100%;
    align-items: center;
}

.header-nav-menu li {
    height: 100%;
    display: flex;
    align-items: center;
}

.header-nav-menu li a {
    text-decoration: none;
    color: var(--text-color);
    font-size: var(--nav-size);
    font-weight: 500;
    transition: var(--transition);
    padding: 0 25px 0 10px;
    height: 100%;
    display: flex;
    gap: 7px;
    align-items: center;
}

.header-nav-menu li a:hover {
    color: var(--primary-color);
}

.header-nav-item {
    position: relative;
}

.header-nav-item>a .icon {
    transition: transform 0.3s ease;
    width: 12px;
    height: 12px;
}

.header-dropdown-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--white);
    /* box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15); */
    border-radius: 0;
    padding: 30px;
    display: none;
    width: 100vw;
    max-width: 100%;
    z-index: 999;
    max-height: 600px;
    overflow-y: auto;
    border-bottom: 1px solid var(--medium-gray);
    margin: 0;
}

.header-dropdown-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

.header-dropdown-content-03 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 10px;
}

.header-dropdown-content-03 .header-dropdown-content-left {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
}

.header-dropdown-content-03 .header-dropdown-content-right {
    display: grid;
}

.header-nav-item:hover .header-dropdown-menu {
    display: block;
}

.header-nav-item:hover .icon {
    transform: rotate(180deg);
}

.header-dropdown-menu:hover {
    display: block;
}

.header-dropdown-column h4 {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 15px;
    color: var(--dark-gray);
}

.header-dropdown-column ul {
    list-style: none;
}

.header-dropdown-column ul li {
    margin-bottom: 10px;
}

.header-dropdown-column ul li a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.header-dropdown-column ul li a:hover {
    color: var(--primary-color);
}

.header-dropdown-column p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.5;
    margin-top: 5px;
}

.header-dropdown-column-03 {
    margin-bottom: 10px;
    padding: 10px;
    border-radius: var(--border-radius);
}

.header-dropdown-column-03:hover {
    cursor: pointer;
    background-color: var(--light-gray);
}

.header-dropdown-column-03 h4 {
    font-size: 16px;
    font-weight: normal;
    margin-bottom: 5px;
    color: var(--dark-gray);
}

.header-dropdown-column-03 p {
    color: var(--text-light);
    font-size: 14px;
}

.header-dropdown-column-03s {
    margin-bottom: 10px;
    border-radius: var(--border-radius);
}

.header-dropdown-column-03s h4 {
    font-size: 16px;
    font-weight: normal;
    margin-bottom: 5px;
    color: var(--dark-gray);
}

.home-resource-links {
    margin-top: 10px;
}

.header-dropdown-column-03s .home-resource-links a {
    padding: 0;
}

.home-resource-link {
    width: 100%;
    display: block;
    padding: 10px;
    border: 1px solid;
    border-color: var(--text-light);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--text-color);
    margin-bottom: 10px;
    transition: var(--transition);
    font-size: 14px;
}

.home-resource-link:hover {
    background-color: var(--text-light);
    color: var(--white);
}

.header-search-with-dropdown {
    position: relative;
    display: flex;
    align-items: center;
}

.header-search-input {
    padding: 8px 12px;
    border: 1px solid var(--medium-gray);
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    width: 200px;
    transition: var(--transition);
}

.header-search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    width: 250px;
}

.header-search-dropdown {
    padding: 10px 0;
    position: relative;
}

.header-dropdown-toggle {
    padding: 8px 12px;
    border: 1px solid var(--medium-gray);
    border-left: none;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    background-color: var(--white);
    cursor: pointer;
    transition: var(--transition);
}

.header-dropdown-toggle:hover {
    background-color: var(--light-gray);
}

.header-search-dropdown-menu {
    position: absolute;
    top: 40px;
    left: 0;
    right: auto;
    background-color: var(--white);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-radius: var(--border-radius);
    padding: 8px 0;
    display: none;
    z-index: 1000;
    margin-top: 8px;
    border: 1px solid var(--medium-gray);
    min-width: 280px;
}

.header-search-dropdown-menu.show {
    display: block;
}

.header-dropdown-item {
    display: flex;
    align-items: center;
    align-items: flex-start;
    gap: 12px;
    padding: 4px 16px;
    text-decoration: none;
    color: var(--text-color);
    transition: var(--transition);
}

.header-dropdown-item:hover {
    background-color: var(--light-gray);
}

.header-dropdown-item .icon {
    width: 20px;
    margin-top: 6px;
    flex-shrink: 0;
}

.header-dropdown-item .title {
    font-weight: 500;
    font-size: 14px;
    display: block;
}

.header-dropdown-item .desc {
    font-size: 13px;
    color: var(--text-light);
    display: block;
}

.item-content {
    display: flex;
    flex-direction: column;
}

.header-dropdown-item div {
    flex: 1;
}

.header-search-with-dropdown {
    position: relative;
}

.header-dropdown-toggle {
    padding: 6.5px 12px;
    border: 1px solid var(--medium-gray);
    border-left: none;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    background-color: var(--white);
    cursor: pointer;
    transition: var(--transition);
    height: 100%;
    display: flex;
    gap: 5px;
    align-items: center;
}

.header-dropdown-toggle .icon {
    width: 14px;
}

.header-dropdown-toggle:hover {
    background-color: var(--light-gray);
}

.header-nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-search-container {
    position: relative;
}

@media (max-width: 768px) {
    .header-nav-left {
        gap: 15px;
    }

    .header-nav-right {
        gap: 10px;
    }

    .header-dropdown-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .header-dropdown-content-03 .header-dropdown-content-left {
        grid-template-columns: 1fr;
    }

    .header-search-dropdown-menu {
        left: auto;
        right: 0;
        min-width: 250px;
    }
}

@media (max-width: 480px) {
    .header-nav-left {
        gap: 10px;
    }

    .header-nav-right {
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .header-dropdown-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .header-dropdown-content-03 .header-dropdown-content-left {
        grid-template-columns: 1fr;
    }

    .header-search-with-dropdown {
        width: 100%;
        margin-top: 10px;
    }

    .header-search-input {
        width: 100%;
    }
}

.home-language-selector {
    color: var(--text-color);
    cursor: pointer;
    position: relative;
}

.home-language-toggle {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 14px;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.home-language-toggle .icon {
    width: 12px;
    transition: transform 0.3s ease;
}

.home-language-selector.active .home-language-toggle .icon {
    transform: rotate(180deg);
}

.home-language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--white);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-radius: var(--border-radius);
    padding: 8px 0;
    display: none;
    z-index: 1000;
    margin-top: 8px;
    border: 1px solid var(--medium-gray);
    min-width: 150px;
}

.home-language-dropdown.show {
    display: block;
}

.home-language-option {
    padding: 10px 16px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
}

.home-language-option:hover {
    background-color: var(--light-gray);
}

.home-language-option.active {
    color: var(--primary-color);
    font-weight: 500;
}

/* 语言选择弹窗 */
.home-language-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.home-language-modal.show {
    display: flex;
}

.home-language-modal-content {
    background-color: var(--white);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
}

.home-language-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--medium-gray);
    flex-shrink: 0;
}

.home-language-modal-header h3 {
    font-size: 18px;
    font-weight: 500;
    color: var(--dark-gray);
}

.home-language-modal-close {
    background: none;
    border: none;
    font-size: 28px;
    color: var(--text-light);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.home-language-modal-close:hover {
    background-color: var(--light-gray);
    color: var(--dark-gray);
}

.home-language-modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.home-language-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.home-language-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.home-language-item:hover {
    background-color: var(--light-gray);
}

.home-language-item.active {
    background-color: var(--primary-color);
    color: var(--white);
}

.home-flag-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    object-fit: cover;
}

.home-language-item span {
    font-size: 14px;
}

.home-btn {
    padding: 8px 16px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.home-btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.home-btn-secondary {
    background-color: var(--white);
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.home-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

@media (max-width: 768px) {
    .home-language-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .home-language-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 1100px) {
    .header-nav-menu {
        display: none;
    }

    .home-mobile-menu-btn {
        display: block;
        margin-left: 10px;
    }

    .header-nav-actions {
        gap: 10px;
    }

    .header-search-input {
        width: 150px;
    }

    .header-search-input:focus {
        width: 200px;
    }
}

@media (max-width: 768px) {
    .header-nav-right {
        display: none;
    }

    .header-nav-actions {
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .header-search-container {
        order: 3;
        width: 100%;
        margin-top: 10px;
    }

    .header-search-input {
        width: 100%;
    }
}

.main-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Footer */
footer {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 80px 0 40px;
    margin: 24px;
    border-radius: var(--border-radius);
}

.home-footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.home-footer-column h3 {
    font-size: 14px;
    color: var(--white);
    font-weight: normal;
    margin-bottom: 20px;
}

.home-footer-column ul {
    list-style: none;
}

.home-footer-column ul li {
    margin-bottom: 10px;
}

.home-footer-column ul li a {
    font-size: 14px;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

.home-footer-column ul li a:hover {
    color: var(--white);
}

.social-links {
    display: flex;
    font-size: 14px;
    gap: 15px;
}

.home-footer-bottom-right {
    display: flex;
    gap: 15px;
}

.home-footer-bottom-right a {
    color: var(--white);
    text-decoration: none;
    font-size: 14px;
}

.home-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Mobile Menu */
.home-mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-color);
}

/* Mobile Menu Overlay */
.home-mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    z-index: 2000;
    flex-direction: column;
}

.home-mobile-menu-overlay.active {
    display: flex;
}

.home-mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid var(--medium-gray);
    height: 70px;
}

.home-mobile-menu-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-color);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.home-mobile-menu-body {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.home-mobile-menu-list {
    list-style: none;
}

.home-mobile-menu-item {
    border-bottom: 1px solid var(--light-gray);
}

.home-mobile-menu-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    text-decoration: none;
    color: var(--text-color);
    font-size: 18px;
    font-weight: 500;
}

.home-mobile-menu-link .icon {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}

.home-mobile-menu-item.active .home-mobile-menu-link .icon {
    transform: rotate(180deg);
}

.home-mobile-submenu {
    display: none;
    padding: 0 0 20px 20px;
}

.home-mobile-menu-item.active .home-mobile-submenu {
    display: block;
}

.home-mobile-submenu a {
    display: block;
    padding: 10px 0;
    text-decoration: none;
    color: var(--text-light);
    font-size: 14px;
}

.home-mobile-menu-footer {
    padding: 20px;
    border-top: 1px solid var(--medium-gray);
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.home-mobile-search-container {
    display: flex;
    gap: 10px;
}

.home-mobile-search-input {
    flex: 1;
    padding: 12px;
    border: 1px solid var(--medium-gray);
    border-radius: var(--border-radius);
    font-size: 14px;
}

.home-mobile-search-btn {
    padding: 12px 20px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 14px;
}

.home-mobile-language-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    background-color: var(--light-gray);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 14px;
    color: var(--text-color);
}

/* Responsive Design */
@media (max-width: 1100px) {
    .header-nav-menu {
        display: none;
    }

    .home-mobile-menu-btn {
        display: block;
        margin-left: 10px;
    }

    .header-nav-actions {
        gap: 10px;
    }

    .header-search-input {
        width: 150px;
    }

    .header-search-input:focus {
        width: 200px;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-search {
        flex-direction: column;
    }

    .hero-search-btn {
        padding: 15px;
    }

    .expert-categories {
        grid-template-columns: repeat(2, 1fr);
    }

    .experts-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .section-title {
        font-size: 28px;
    }
}

@media (max-width: 768px) {
    .header-nav-right {
        display: none;
    }

    .header-nav-actions {
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .header-search-container {
        order: 3;
        width: 100%;
        margin-top: 10px;
    }

    .header-search-input {
        width: 100%;
    }

    .hero h1 {
        font-size: 28px;
    }

    .expert-categories {
        grid-template-columns: 1fr;
    }

    .experts-list {
        grid-template-columns: 1fr;
    }

    .features-grid,
    .process-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

.home-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.home-section-header .home-btn {
    margin-top: 50px;
}


.home-section-title {
    font-size: 36px;
    font-weight: bold;
    color: var(--dark-gray);
}

.home-section-title-01 {
    margin-top: 70px;
    margin-bottom: 32px;
}

.home-section-title-02 {
    margin-top: 70px;
    margin-bottom: 32px;
}

.home-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.home-feature-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.home-feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.home-feature-card h3 {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 15px;
    color: var(--dark-gray);
}

.home-feature-card p {
    color: var(--text-light);
    margin-bottom: 20px;
}