:root {
    --primary: #2E7D32;
    --primary-light: #4CAF50;
    --primary-pale: #E8F5E9;
    --secondary: #388E3C;
    --tertiary: #1B5E20;
    --earth: #8D6E63;
    --earth-light: #D7CCC8;
    --sky: #4CAF50;
    --tech-blue: #2196F3;
    --tech-gray: #607D8B;
    --text-dark: #263238;
    --text-gray: #546E7A;
    --white: #ffffff;
    --light-gray: #FAFAFA;
    --medium-gray: #F5F5F5;
    --border-gray: #eee;
    --overlay-bg: #23550a;
    --playlist-bg: #f8f8f8;
    --video-display-bg: #f0f4f0;
    --video-wrapper-bg: #e8ede8;
    --hover-light: #f0f0f0;
    --gallery-bg: #fff;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 24px rgba(46, 125, 50, 0.15);
    --section-padding: 8%;
    --section-padding-mobile: 5%;
    --section-padding-sm: 4%;
    --gap-large: 4rem;
    --gap-medium: 3rem;
    --gap-small: 2rem;
    --gap-xs: 1rem;
    --radius-small: 4px;
    --radius-medium: 6px;
    --radius-large: 8px;
    --radius-xl: 12px;
    --radius-circle: 50%;
    --transition-fast: 0.2s;
    --transition-normal: 0.3s;
    --transition-slow: 0.4s;
    --font-xs: 0.85rem;
    --font-sm: 0.9rem;
    --font-base: 1.1rem;
    --font-md: 1rem;
    --font-lg: 1.1rem;
    --font-xl: 1.3rem;
    --font-xxl: 1.8rem;
    --font-xxxl: 2.4rem;
    --logo-height: 34px;
    --logo-height-mobile: 30px;
    --btn-padding-h: 1.6rem;
    --btn-padding-v: 0.7rem;
    --btn-radius: 30px;
    --img-max-width: 420px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: var(--light-gray);
    line-height: 1.7;
    scroll-behavior: smooth;
}

img {
    max-width: 100%;
    height: auto;
}

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

ul, ol {
    list-style: none;
}

header {
    background-color: var(--white);
    padding: 1rem var(--section-padding);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 99;
}

.header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    height: var(--logo-height);
    flex-shrink: 0;
}

nav {
    display: flex;
    align-items: center;
}

nav a {
    margin: 0 0.9rem;
    padding: 0.4rem 0;
    text-decoration: none;
    color: var(--text-dark);
    font-size: var(--font-base);
    transition: color 0.3s ease;
    position: relative;
    white-space: nowrap;
    flex-shrink: 0;
}

nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: width 0.3s ease;
}

nav a:hover {
    color: var(--primary);
}

nav a:hover::after,
nav a.active::after {
    width: 100%;
}

nav a.active {
    color: var(--primary);
}

.desktop-nav {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}


nav a:last-child {
    background-color: var(--primary);
    color: var(--white);
    padding: 0.3rem 1rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: 0.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    white-space: nowrap;
}

nav a:last-child::after {
    display: none;
}

nav a:last-child:hover {
    background-color: var(--primary-light);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

nav a.contact-btn {
    background-color: var(--primary);
    color: var(--white);
    padding: 0.3rem 1rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: 0.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    white-space: nowrap;
}

nav a.contact-btn::after {
    display: none;
}

nav a.contact-btn:hover {
    background-color: var(--primary-light);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.mobile-nav {
    display: none;
}

.lang-dropdown {
    position: relative;
    flex-shrink: 0;
}

.lang-toggle {
    text-decoration: none;
    color: var(--text-dark);
    font-size: var(--font-base);
    cursor: pointer;
    padding: 0.2rem 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: all 0.3s ease;
    border-radius: var(--btn-radius);
    border: 1px solid var(--primary);
    background: var(--white);
}

.lang-toggle:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: var(--primary-pale);
}

.lang-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--white);
    min-width: 140px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    border-radius: var(--radius-large);
    display: none;
    z-index: 100;
    overflow: hidden;
    border: 1px solid var(--border-gray);
    animation: dropdownFade 0.2s ease;
}

@keyframes dropdownFade {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.lang-menu.show {
    display: block;
}

.lang-menu a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 1.2rem;
    color: var(--text-dark);
    text-decoration: none;
    font-size: var(--font-sm);
    margin: 0;
    transition: all 0.2s ease;
    border-bottom: 1px solid var(--border-gray);
    text-align: center;
}

.lang-menu a:last-child {
    border-bottom: none;
}

.lang-menu a:hover {
    background-color: var(--primary-pale);
    color: var(--primary);
}

.hero {
    background: linear-gradient(rgba(46, 125, 50, 0), rgba(46, 125, 50, 0.5)), var(--bg-image, url(/zb_users/theme/xmh_a/images/beijing.png)) center/cover no-repeat;
    color: var(--white);
    padding: 10rem var(--section-padding);
    position: relative;
    overflow: hidden;
}

.elementor-shape-bottom {
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.elementor-shape-bottom svg {
    display: block;
    width: calc(100% + 1.3px);
    height: 85px;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
}

.elementor-shape-fill {
    fill: var(--primary-pale);
}

.hero h1 {
    font-size: var(--font-xxxl);
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    text-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

.hero h1::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 2.8rem;
    background-color: var(--white);
    margin-right: 1.2rem;
    border-radius: var(--radius-small);
}

.hero p {
    font-size: var(--font-lg);
    opacity: 0.95;
    text-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

.about-section {
    padding: 5rem var(--section-padding);
    background-color: var(--primary-pale);
}

.about-header {
    display: flex;
    align-items: flex-start;
    gap: var(--gap-medium);
    margin-bottom: 3.5rem;
    flex-wrap: wrap;
}

.about-header h2 {
    font-size: var(--font-xxl);
    color: var(--text-dark);
    white-space: nowrap;
}

.about-header h2::after {
    content: '';
    display: block;
    width: 70px;
    height: 4px;
    background-color: var(--primary);
    margin-top: 0.6rem;
    border-radius: 2px;
}

.about-header p {
    font-size: var(--font-md);
    color: var(--text-gray);
    max-width: 700px;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap-large);
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image::before {
    content: '';
    position: absolute;
    top: -15px;
    left: -15px;
    width: 350px;
    height: 350px;
    background-image: radial-gradient(circle, var(--primary) 2px, transparent 2px);
    background-size: 22px 22px;
    opacity: 0.4;
    z-index: 0;
}

.about-image img {
    width: 100%;
    max-width: var(--img-max-width);
    position: relative;
    z-index: 1;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow);
    transform: translateX(100px);
}

.about-content.reverse-deco .about-image::before {
    left: auto;
    right: -15px;
}

.about-text h3 {
    color: var(--primary);
    margin-bottom: 1.2rem;
    font-size: var(--font-xl);
}

.about-text p {
    color: var(--text-gray);
    margin-bottom: 1.6rem;
    font-size: var(--font-md);
    line-height: 1.8;
}

.facility {
    margin-bottom: 1.8rem;
    padding: 1rem;
    background: rgba(255,255,255,0.6);
    border-radius: var(--radius-large);
}

.facility h4 {
    display: flex;
    align-items: center;
    color: var(--text-dark);
    margin-bottom: 0.6rem;
    font-size: 1.05rem;
}

.facility h4::before {
    content: '';
    display: inline-block;
    width: 22px;
    height: 22px;
    background-color: var(--primary);
    margin-right: 0.6rem;
    -webkit-mask-image: url('data:image/svg+xml;utf8,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"%3E%3Cpath d="M19 3H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm-5 14H7v-2h7v2zm3-4H7v-2h10v2zm0-4H7V7h10v2z"%3E%3C/path%3E%3C/svg%3E');
    mask-image: url('data:image/svg+xml;utf8,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"%3E%3Cpath d="M19 3H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm-5 14H7v-2h7v2zm3-4H7v-2h10v2zm0-4H7V7h10v2z"%3E%3C/path%3E%3C/svg%3E');
    -webkit-mask-size: contain;
    mask-size: contain;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
}

.facility p {
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 0;
}

.btn-wrap {
    text-align: right;
}

.btn-wrap.left-align {
    text-align: left;
}

.btn {
    display: inline-block;
    background-color: var(--primary);
    color: var(--white);
    text-decoration: none;
    padding: 0.7rem 1.6rem;
    border-radius: 30px;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 3px 8px rgba(46, 125, 50, 0.25);
}

.btn:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 5px 12px rgba(46, 125, 50, 0.3);
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    border-radius: var(--radius-circle);
    background: rgba(46, 125, 50, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 2;
    transition: all 0.3s ease;
}

.play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 14px 0 14px 24px;
    border-color: transparent transparent transparent var(--white);
}

.play-btn:hover {
    background: var(--primary);
    transform: translate(-50%, -50%) scale(1.1);
}

.video-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.85);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 20px;
}

.video-modal.show {
    display: flex;
}

.video-box {
    position: relative;
    width: 100%;
    max-width: 900px;
}

.video-box video {
    width: 100%;
    border-radius: var(--radius-large);
    outline: none;
}

.close-modal {
    position: absolute;
    top: -35px;
    right: 0;
    color: var(--white);
    font-size: 28px;
    cursor: pointer;
}

.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.85);
    align-items: center;
    justify-content: center;
    flex-direction: column;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    max-width: 90%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-large);
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
    animation: zoomIn 0.3s ease;
    display: block;
}

.close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    z-index: 10001;
    cursor: pointer;
}

.close:hover,
.close:focus {
    color: #bbb;
}

#caption {
    margin: 15px auto 0;
    display: block;
    text-align: center;
    color: #f1f1f1;
    font-size: var(--font-lg);
    max-width: 90%;
    padding: 10px 0;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes zoomIn {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.products-section {
    background: #F5F5F5 url(/zb_users/theme/xmh_a/images/beijing.png) center/cover no-repeat;
    padding: 5rem 8%;
    text-align: center;
    color: var(--text-dark);
    position: relative;
    margin-bottom: 5rem;
}

.elementor-background-overlay {
    background-color: #23550a;
    opacity: 0.81;
    transition: background 0.3s, border-radius 0.3s, opacity 0.3s;
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
    position: absolute;
    z-index: 1;
}

.products-inner {
    position: relative;
    z-index: 2;
    color: #fff;
}

.products-section h2 {
    margin-bottom: 0.8rem;
    font-size: 1.8rem;
    color: #fff;
}

.products-section .subtitle {
    font-size: 1rem;
    margin-bottom: 3.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.product-item {
    text-align: center;
    padding: 1.5rem 1rem;
    background: #ffffff6b;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.product-item:hover {
    transform: translateY(-6px);
}

.product-icon {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background-color: var(--primary-pale);
    margin: 0 auto 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: inset 0 2px 8px rgba(0,0,0,0.06);
    overflow: hidden;
}

.product-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.product-item h3 {
    font-size: 1.15rem;
}

.contact-section {
    background-color: var(--primary);
    color: var(--white);
    padding: 4.5rem 8%;
    text-align: center;
}

.contact-section h2 {
    margin-bottom: 1.2rem;
    font-size: 1.8rem;
}

.contact-section p {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 1rem;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.95;
}

.contact-btn {
    background-color: var(--white);
    color: var(--primary);
    border: none;
    padding: 0.7rem 1.6rem;
    border-radius: 30px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-weight: 500;
}

.contact-btn:hover {
    background-color: #f0f0f0;
    transform: translateY(-2px);
}

.contact-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
    align-items: start;
}

.contact-info h3 {
    color: var(--primary);
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--text-gray);
    font-size: 0.98rem;
    line-height: 1.8;
    margin-bottom: 0.8rem;
}

.contact-tel,
.contact-email {
    font-weight: 500;
}

.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.2rem;
}

.contact-form .form-item {
    display: flex;
    flex-direction: column;
}

.contact-form .form-full {
    grid-column: 1 / -1;
    margin-bottom: 1.2rem;
}

.contact-form .form-item label {
    color: var(--text-dark);
    margin-bottom: 0.4rem;
    font-size: 0.95rem;
}

.contact-form .form-item input,
.contact-form .form-item textarea {
    padding: 0.75rem 1rem;
    border: 1px solid var(--earth-light);
    border-radius: 6px;
    font-size: 0.95rem;
    background: #fff;
    outline: none;
    transition: border-color 0.3s;
}

.contact-form .form-item input:focus,
.contact-form .form-item textarea:focus {
    border-color: var(--primary);
}

.form-submit {
    text-align: right;
}

.quote-form {
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

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

.form-item label {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-item input,
.form-item textarea {
    padding: 0.8rem 1rem;
    border: 1px solid var(--earth-light);
    border-radius: 6px;
    font-size: 0.95rem;
    background: #fff;
    outline: none;
    transition: border-color 0.3s;
}

.form-item input:focus,
.form-item textarea:focus {
    border-color: var(--primary);
}

.form-full {
    grid-column: 1 / -1;
}

.form-btn-wrap {
    margin-top: 1rem;
}

.video-player-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.video-playlist {
    background: #f8f8f8;
    border-right: 1px solid #eee;
    display: flex;
    flex-direction: column;
}

.playlist-header {
    padding: 1rem;
    background: var(--primary);
    color: #fff;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.playlist-header span {
    font-weight: normal;
    opacity: 0.8;
    font-size: 0.9rem;
}

.playlist-items {
    overflow-y: auto;
    flex: 1;
    max-height: 500px;
}

.playlist-item {
    display: flex;
    align-items: center;
    padding: 0.8rem 1rem;
    cursor: pointer;
    transition: background 0.2s;
    border-left: 3px solid transparent;
}

.playlist-item.active {
    background: #e8f5e9;
    border-left-color: var(--primary);
}

.playlist-item:hover {
    background: #f0f0f0;
}

.playlist-item .playlist-thumb {
    position: relative;
}

.playlist-item .thumb {
    width: 80px;
    height: 50px;
    object-fit: cover;
    border-radius: 4px;
    margin-right: 0.8rem;
    position: relative;
}

.playlist-item .play-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    background: rgba(0,0,0,0.6);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.playlist-item .play-icon::after {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 5px 0 5px 8px;
    border-color: transparent transparent transparent #fff;
}

.playlist-item .info {
    flex: 1;
}

.playlist-item .title {
    font-size: 0.95rem;
    color: var(--text-dark);
    margin-bottom: 0.2rem;
}

.playlist-item .duration {
    font-size: 0.85rem;
    color: var(--text-gray);
}

.video-display {
    background: #f0f4f0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.video-display video {
    width: 100%;
    display: block;
}

.video-wrapper {
    position: relative;
    width: 100%;
    max-width: 100%;
    aspect-ratio: 16/9;
    background: #e8ede8;
    overflow: hidden;
}

.video-wrapper video {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

.video-poster-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: opacity 0.4s ease;
    z-index: 3;
}

.video-poster-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.video-play-btn {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    background: rgba(46, 125, 50, 0.88);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.video-play-btn:hover {
    background: rgba(46, 125, 50, 1);
    transform: scale(1.12);
    box-shadow: 0 6px 32px rgba(0, 0, 0, 0.45);
}

.video-play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 15px 0 15px 26px;
    border-color: transparent transparent transparent #fff;
    margin-left: 4px;
}

.gallery-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.gallery-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    background: #fff;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gallery-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.gallery-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
}

.gallery-zoom-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    font-size: 2rem;
    font-weight: bold;
    color: var(--white);
    background-color: rgba(46, 125, 50, 0.8);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 2;
    cursor: pointer;
}

.gallery-item:hover .gallery-zoom-icon {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.gallery-name {
    position: absolute;
    right: 0;
    bottom: 0;
    background: linear-gradient(to left, rgba(46, 125, 50, 0.85), transparent);
    color: #fff;
    padding: 8px 16px;
    font-size: 15px;
    white-space: nowrap;
}

footer {
    background-color: var(--white);
    padding: 4rem var(--section-padding);
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    border-top: 1px solid var(--earth-light);
}

.footer-logo {
    height: 34px;
    margin-bottom: 1.2rem;
}

.footer-about {
    font-size: 0.95rem;
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1.8rem;
}

.social-links a {
    color: var(--primary);
    margin-right: 1rem;
    font-size: 1.2rem;
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--primary-light);
}

.footer-links h4,
.footer-contact h4 {
    color: var(--text-dark);
    margin-bottom: 1.2rem;
    font-size: 1.1rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-links h4::after,
.footer-contact h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background: var(--primary);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--text-gray);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-contact p {
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 0.8rem;
}

.copyright {
    background-color: var(--primary);
    color: var(--white);
    text-align: center;
    padding: 1.2rem;
    font-size: 1.3rem;
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

@media (max-width: 992px) {
    .video-player-container {
        grid-template-columns: 1fr;
    }
    .video-playlist {
        border-right: none;
        border-top: 1px solid var(--border-gray);
    }
    .gallery-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        padding: 0.8rem var(--section-padding);
    }
    .logo {
        height: var(--logo-height-mobile);
    }
    .header-top {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
    .desktop-nav {
        display: none !important;
    }
    .mobile-nav {
        display: flex !important;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        margin-top: 0.8rem;
        padding: 0.5rem 0;
        border-top: 1px solid var(--border-gray);
        justify-content: flex-start;
    }
    .mobile-nav::-webkit-scrollbar {
        display: none;
    }
    .mobile-nav a {
        margin: 0 0.7rem;
        padding: 0.4rem 0;
        font-size: var(--font-sm);
    }
    .mobile-nav a.contact-btn {
        margin-left: 0.5rem;
        padding: 0.4rem 0.8rem;
    }
    .lang-dropdown {
        flex-shrink: 0;
    }
    .about-content {
        grid-template-columns: 1fr;
    }
    .about-image img {
        transform: translateX(0);
    }
    .about-image::before {
        width: 200px;
        height: 200px;
        top: -10px;
        left: -10px;
        background-size: 18px 18px;
    }
    .about-content.reverse-deco .about-image::before {
        left: auto;
        right: -10px;
    }
    footer {
        grid-template-columns: 1fr 1fr;
    }
    footer > div:first-child {
        grid-column: 1 / -1;
    }
    .hero {
        padding: 4rem var(--section-padding-mobile);
    }
    .hero h1 {
        font-size: var(--font-xxl);
    }
    .form-row,
    .contact-row,
    .contact-form .form-row {
        grid-template-columns: 1fr;
        gap: var(--gap-xs);
    }
    .modal-content {
        max-width: 95%;
        max-height: 70vh;
    }
    .close {
        top: 15px;
        right: 20px;
        font-size: 30px;
    }
    #caption {
        font-size: var(--font-md);
        max-width: 95%;
    }
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 22px;
    }
    .contact-row {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 576px) {
    .about-image::before {
        width: 150px;
        height: 150px;
        top: -8px;
        left: -8px;
        background-size: 15px 15px;
    }
    .about-content.reverse-deco .about-image::before {
        left: auto;
        right: -8px;
    }
    .gallery-list {
        grid-template-columns: 1fr;
    }
}