/* ========================= Contact Us Page Styles ========================= */



/* 通用 a 标签样式 */

a,

a:link,

a:visited,

a:hover,

a:active {

    color: white;

    text-decoration: none;

}



/* Hero Section */

.contact-hero-section {

    position: relative;

    width: 100%;

    height: calc((350/1918) * 100vw);

    min-height: 280px;

    background-image: url('/images/kalex_01.png');

    background-size: cover;

    background-position: center center;

    background-repeat: no-repeat;

    display: flex;

    align-items: center;

    justify-content: center;

}



.hero-overlay {

    position: relative;

    z-index: 2;

    text-align: left;

    color: var(--white);

    padding: calc((40/1918) * 100vw);

    width: 100%;

    max-width: 1730px;

    margin: 0 auto;

}



.contact-hero-section::before {

    content: '';

    position: absolute;

    top: 0;

    left: 0;

    right: 0;

    bottom: 0;

    background-color: rgba(0, 0, 0, 0.5);

    z-index: 1;

}



.hero-title {

    font-family: var(--font-heading);

    font-size: calc((48/1918) * 100vw);

    font-weight: bold;

    margin: 0 0 calc((15/1918) * 100vw) 0;

    letter-spacing: 2px;

}



.hero-subtitle {

    font-family: var(--font-body);

    font-size: calc((20/1918) * 100vw);

    margin: 0;

    opacity: 0.95;

}



/* Tab Navigation */

.contact-tabs {

    display: flex;

    gap: calc((80/1918) * 100vw);

    margin-bottom: calc((40/1918) * 100vw);

    border-bottom: 2px solid var(--brand-gray-light);

    justify-content: flex-start; /* 靠左对齐 */

    width: 100%;

}



.contact-tab {

    background: none;

    border: none;

    font-family: var(--font-heading);

    font-size: calc((24/1918) * 100vw);

    font-weight: 600;

    color: var(--text-gray-700);

    padding: calc((15/1918) * 100vw) 0;

    padding-bottom: calc((15/1918) * 100vw);

    cursor: pointer;

    position: relative;

    transition: color 0.3s ease;

}



.contact-tab.active {

    color: var(--brand-primary);

}



.contact-tab.active::after {

    content: '';

    position: absolute;

    bottom: -2px;

    left: 0;

    right: 0;

    height: 3px;

    background-color: var(--brand-primary);

}



.contact-tab:hover {

    color: var(--brand-primary);

}



/* Main Content Wrapper */

.contact-content-wrapper {

    display: flex;

    flex-direction: column;

    gap: calc((60/1918) * 100vw);

    width: 100%;

}



/* Top Row: Company Info + Shenzhen Office */

.contact-top-row {

    display: grid;

    grid-template-columns: 1fr 1fr;

    gap: calc((60/1918) * 100vw);

}



.contact-info-column {

    display: flex;

    flex-direction: column;

    gap: calc((40/1918) * 100vw);

}



.shenzhen-office-column {

    display: flex;

    flex-direction: column;

}



/* Bottom Row: Online Message + Form */

.contact-bottom-row {

    display: grid;

    grid-template-columns: 1fr 1fr;

    gap: calc((60/1918) * 100vw);

}



.message-title-column {

    display: flex;

    flex-direction: column;

}



.message-form-column {

    display: flex;

    flex-direction: column;

}



/* Company Introduction */

.contact-intro {

    margin-bottom: calc((20/1918) * 100vw);

}



.contact-section-title {

    font-family: var(--font-heading);

    font-size: calc((18/1918) * 100vw);

    font-weight: 600;

    color: var(--text-gray-700);

    margin: 0 0 calc((15/1918) * 100vw) 0;

}



.contact-intro-text {

    font-family: var(--font-body);

    font-size: calc((18/1918) * 100vw);

    color: var(--text-gray-500);

    margin: 0;

    line-height: 1.6;

}



/* Contact Information Section */

.contact-info-section {

    display: flex;

    flex-direction: column;

    gap: calc((25/1918) * 100vw);

}



.contact-info-item {

    display: flex;

    gap: calc((20/1918) * 100vw);

    padding: calc((20/1918) * 100vw);

    background-color: var(--brand-bg-light);

    border-radius: calc((8/1918) * 100vw);

    transition: transform 0.3s ease, box-shadow 0.3s ease;

}



.contact-info-item:hover {

    transform: translateY(-2px);

    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);

}



.contact-icon-wrapper {

    width: calc((50/1918) * 100vw);

    height: calc((50/1918) * 100vw);

    min-width: 40px;

    min-height: 40px;

    max-width: 50px;

    max-height: 50px;

    display: flex;

    align-items: center;

    justify-content: center;

    background-color: var(--white);

    border-radius: 50%;

    color: var(--brand-primary);

}



.contact-icon {

    width: calc((28/1918) * 100vw);

    height: calc((28/1918) * 100vw);

    min-width: 24px;

    min-height: 24px;

    max-width: 28px;

    max-height: 28px;

}



.contact-info-content {

    flex: 1;

}



.contact-info-label {

    font-family: var(--font-heading);

    font-size: calc((18/1918) * 100vw);

    font-weight: 600;

    color: var(--text-gray-700);

    margin: 0 0 calc((8/1918) * 100vw) 0;

}



.contact-info-value {

    font-family: var(--font-body);

    font-size: calc((16/1918) * 100vw);

    color: var(--text-gray-500);

    margin: 0;

    line-height: 1.6;

}



.contact-info-value a {

    color: var(--brand-primary);

    text-decoration: none;

    transition: color 0.3s ease;

}



.contact-info-value a:hover {

    color: var(--brand-primary-dark);

    text-decoration: underline;

}



/* Form Section */

.contact-form-section {

    margin-top: calc((40/1918) * 100vw);

}



.form-section-title {

    font-family: var(--font-heading);

    font-size: calc((28/1918) * 100vw);

    font-weight: 600;

    color: var(--text-gray-700);

    margin: 0 0 calc((10/1918) * 100vw) 0;

    position: relative;

    display: inline-block;

    cursor: pointer;

    transition: color 0.3s ease;

}



.form-section-title:hover {

    color: var(--brand-primary);

}



.title-underline {

    display: block;

    width: 100%; /* 和文字一样长 */

    height: 3px;

    background-color: var(--brand-primary);

    margin-top: calc((8/1918) * 100vw);

}



.form-section-subtitle {

    font-family: var(--font-body);

    font-size: calc((16/1918) * 100vw);

    color: var(--text-gray-500);

    margin: 0 0 calc((30/1918) * 100vw) 0;

}



/* Form Image */

.form-image-wrapper {

    width: 100%;

    border-radius: calc((8/1918) * 100vw);

    overflow: hidden;

    margin-top: calc((20/1918) * 100vw);

}



.form-side-image {

    width: 100%;

    height: auto;

    object-fit: cover;

    display: block;

}



/* Form Styles */

.contact-form {

    display: flex;

    flex-direction: column;

    gap: calc((20/1918) * 100vw);

    width: 100%;

}



.form-group {

    display: flex;

    flex-direction: column;

    width: 100%;

}



.form-label {

    font-family: var(--font-body);

    font-size: calc((16/1918) * 100vw);

    color: var(--text-gray-700);

    margin-bottom: calc((8/1918) * 100vw);

    font-weight: 500;

}



.form-input,

.form-textarea {

    font-family: var(--font-body);

    font-size: calc((16/1918) * 100vw);

    padding: calc((12/1918) * 100vw) calc((16/1918) * 100vw);

    border: 2px solid var(--brand-gray-light);

    border-radius: calc((8/1918) * 100vw);

    transition: border-color 0.3s ease, box-shadow 0.3s ease;

    background-color: var(--white);

    color: var(--text-gray-700);

    width: 100%;

    box-sizing: border-box;

}



.form-input:focus,

.form-textarea:focus {

    outline: none;

    border-color: var(--brand-primary);

    box-shadow: 0 0 0 3px rgba(80, 162, 111, 0.1);

}



.form-input::placeholder,

.form-textarea::placeholder {

    color: var(--text-gray-500);

    opacity: 0.7;

}



.form-textarea {

    resize: vertical;

    min-height: calc((120/1918) * 100vw);

}



.error-message {

    font-family: var(--font-body);

    font-size: calc((14/1918) * 100vw);

    color: #dc3545;

    margin-top: calc((6/1918) * 100vw);

    display: none;

}



.form-group.error .form-input,

.form-group.error .form-textarea {

    border-color: #dc3545;

}



.form-group.error .error-message {

    display: block;

}



.success-message {

    font-family: var(--font-body);

    font-size: calc((16/1918) * 100vw);

    color: var(--brand-primary);

    background-color: rgba(80, 162, 111, 0.1);

    padding: calc((15/1918) * 100vw);

    border-radius: calc((4/1918) * 100vw);

    border-left: 4px solid var(--brand-primary);

    margin-top: calc((20/1918) * 100vw);

}



.form-submit-btn {

    /* 布局 */

    width: 100%;

    display: block;

    box-sizing: border-box;

    

    /* 间距 */

    padding: calc((12/1918) * 100vw) calc((40/1918) * 100vw);

    margin-top: calc((10/1918) * 100vw);

    margin-left: 0;

    margin-right: 0;

    

    /* 外观 */

    background-color: var(--brand-primary);

    color: white !important;

    border: none;

    border-radius: calc((8/1918) * 100vw);

    

    /* 字体 */

    font-family: var(--font-body);

    font-size: calc((16/1918) * 100vw);

    font-weight: 500;

    

    /* 交互 */

    cursor: pointer;

    transition: background-color 0.3s ease, transform 0.2s ease;

}



.form-submit-btn:hover {

    background-color: var(--brand-primary-dark);

    color: white !important;

    transform: translateY(-1px);

}



.form-submit-btn:active {

    color: white !important;

    transform: translateY(0);

}



/* Form Section in Bottom Row */

.message-title-column .contact-form-section {

    margin-top: 0;

}



/* Secondary Office Box */

.secondary-office-box {

    background-color: var(--brand-bg-light);

    padding: calc((40/1918) * 100vw);

    border-radius: calc((8/1918) * 100vw);

    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);

}



.office-heading {

    font-family: var(--font-body);

    font-size: calc((24/1918) * 100vw);

    font-weight: normal;

    color: var(--text-gray-700);

    margin: 0 0 calc((10/1918) * 100vw) 0;

}



.office-company {

    font-family: var(--font-heading);

    font-size: calc((24/1918) * 100vw);

    font-weight: 600;

    color: var(--text-gray-700);

    margin: 0 0 calc((25/1918) * 100vw) 0;

}



.office-detail {

    display: flex;

    gap: calc((8/1918) * 100vw);

    margin-bottom: calc((15/1918) * 100vw);

    font-family: var(--font-body);

    font-size: calc((16/1918) * 100vw);

    align-items: baseline;

}



.office-label {

    font-weight: 600;

    color: var(--text-gray-700);

    white-space: nowrap;

    flex-shrink: 0;

}



.office-value {

    color: var(--text-gray-500);

    line-height: 1.6;

    flex: 1;

}



.office-value a {

    color: var(--brand-primary);

    text-decoration: none;

    transition: color 0.3s ease;

}



.office-value a:hover {

    color: var(--brand-primary-dark);

    text-decoration: underline;

}



/* QR Code Section */

.qr-code-section {

    margin-top: calc((30/1918) * 100vw);

    text-align: left;

}



.qr-code-image {

    width: calc((180/1918) * 100vw);

    height: calc((180/1918) * 100vw);

    max-width: 180px;

    max-height: 180px;

    border: 2px solid var(--white);

    border-radius: calc((8/1918) * 100vw);

    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);

}



.qr-code-label {

    font-family: var(--font-body);

    font-size: calc((16/1918) * 100vw);

    font-weight: 600;

    color: var(--brand-primary);

    margin-top: calc((12/1918) * 100vw);

    margin-bottom: 0;

}



/* ========================= Contact Page Responsive ========================= */



/* Tablet */

@media (max-width: 1024px) {

    .contact-top-row,

    .contact-bottom-row {

        grid-template-columns: 1fr;

    }



    .hero-title {

        font-size: calc((36/1918) * 100vw);

    }



    .hero-subtitle {

        font-size: calc((18/1918) * 100vw);

    }

}



/* Mobile */

@media (max-width: 768px) {

    .contact-hero-section {

        height: 220px;

        min-height: 220px;

        background-size: cover;

    }



    .hero-title {

        font-size: 32px;

    }



    .hero-subtitle {

        font-size: 16px;

    }



    .contact-tabs {

        gap: 30px;

    }



    .contact-tab {

        font-size: 18px;

        padding: 12px 0;

    }



    .contact-intro {

        display: flex;

        flex-direction: column;

        gap: 15px !important;

        margin-bottom: 20px !important;

    }



    .contact-section-title {

        font-size: 16px;

        margin: 0 !important;

        padding-top: 15px !important;

    }



    .contact-intro-text {

        font-size: 16px;

        margin: 0 !important;

    }



    .form-section-title {

        font-size: 22px;

    }



    .form-section-subtitle {

        font-size: 14px;

    }



    .contact-info-label {

        font-size: 16px;

    }



    .contact-info-value {

        font-size: 14px;

    }



    .form-label {

        font-size: 14px;

    }



    .form-input,

    .form-textarea {

        font-size: 16px;

        padding: 12px 16px;

        width: 100%;

        max-width: 100%;

        box-sizing: border-box;

    }



    .office-heading {

        font-size: 20px;

    }



    .office-company {

        font-size: 22px;

    }



    .office-detail {

        font-size: 14px;

    }



    .contact-info-item {

        /* flex-direction: column !important; */

        align-items: flex-start !important;

        padding: 16px !important;

        gap: 12px !important;

    }



    .contact-icon-wrapper {

        width: 40px;

        height: 40px;

        min-width: 40px;

        min-height: 40px;

    }



    .contact-icon {

        width: 24px;

        height: 24px;

        min-width: 24px;

        min-height: 24px;

    }

    

    .contact-form {

        width: 100%;

        max-width: 100%;

        padding: 0;

        margin: 0;

    }

    

    .form-group {

        width: 100%;

        max-width: 100%;

        padding: 0;

        margin: 0;

        margin-bottom: 15px;

    }

    

    .form-submit-btn {

        width: 100% !important;

        max-width: 100%;

        font-size: 16px;

        padding: 14px 20px;

        min-height: 48px;

        border-radius: 8px;

        margin-left: 0 !important;

        margin-right: 0 !important;

        box-sizing: border-box !important;

        display: block;

    }

    

    .message-form-column {

        width: 100%;

        max-width: 100%;

        padding: 0;

        overflow: hidden;

    }



    .secondary-office-box {

        padding: 24px;

    }



    .qr-code-image {

        width: 150px;

        height: 150px;

    }



    .qr-code-label {

        font-size: 14px;

    }



    /* Stack columns on mobile */

    .contact-top-row,

    .contact-bottom-row {

        grid-template-columns: 1fr;

    }

}