/* About Page Styles */
.page-about {
    background-color: #030506;
    color: #fff;
    font-family: 'Microsoft YaHei', sans-serif;
}
.site-header{
    background: linear-gradient(0deg, rgba(0,0,0,0.1) 0%, #030506 100%);
}

/* Hero Section */
.about-hero {
    height: 900px;
    background:  url('img/about-top.png');
    background-size: cover;
    background-position: center top;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.about-hero .hero-content {
    margin-top: 60px;
    padding-left: 20px;
}

.about-hero h1 {
    font-size: 56px;
    font-weight: 300;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: 2px;
    position: relative;
    display: flex;
    align-items: center;
}

.about-hero h1::before {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 24px 24px 0 0;
    border-color: #FED800 transparent transparent transparent;
    margin-right: 15px;
    margin-top: -40px; /* Adjust alignment */
}

.about-hero .subtitle {
    font-size: 36px;
    font-weight: 300;
    color: rgba(255, 255, 255, 1);
    padding-left: 40px; /* Align with text start (triangle width + gap) */
    background: none;
    -webkit-text-fill-color: initial;
}

/* Intro Section */
.about-intro {
    padding: 120px 0;
}

.intro-content {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 180px;
    gap: 10px;
}
.intro-top{
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.intro-left {
    flex: 0 0 45%;
    transform: translateY(-25px);
}

.intro-right {
    flex: 1;
    transform: translateY(10px);
}

.section-label {
    display: block;
    font-weight: 400;
    font-size: 32px;
    color: #FFFFFF;
    line-height: 48px;
    margin-bottom: 46px;
}

.intro-content h2 {
    font-weight: 400;
    font-size: 42px;
    color: #FFFFFF;
    margin-bottom: 0;
    letter-spacing: 1px;
    position: relative;
    display: inline-block;
    line-height: 1.3;
}

.intro-content h2::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 12px;
    background-color: #FED800;
}

.intro-text-block {
    font-weight: 400;
    font-size: 20px;
    color: #E6E6E6;
    line-height: 48px;
    text-align: justify;
}

/* Stats Card */
.stats-card {
    background: #050505;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 30px;
    padding: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    overflow: hidden;
    margin-bottom: 100px;
    height: 534px;
    gap: 240px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

/* Right Bottom Gradient Border */
.stats-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 50px; 
    padding: 20px; /* Border width */
    background: radial-gradient(circle at bottom right, #35300a 0%, transparent 25%); 
    -webkit-mask: 
       linear-gradient(#fff 0 0) content-box, 
       linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude; 
    pointer-events: none;
    z-index: 10;
}

.stats-visual {
    flex: 0 0 40%;
    position: relative;
    z-index: 2;
    padding: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
    transform: scale(1.1); /* Slight pop */
}

.stats-info {
    flex: 1;
    z-index: 2;
    padding: 60px 80px 60px 20px;
}

.stat-items {
    display: flex;
    gap: 60px;
    margin-bottom: 40px;
}

.stat-item .stat-value {
    color: #FED800;
    margin-bottom: 8px;
}

.stat-item .stat-value .num {
   font-weight: 400;
    font-size: 48px;
    color: #FED800;
}

.stat-item .stat-value .unit {
    font-weight: 400;
    font-size: 22px;
    color: #81817E;
    margin-left: 18px;
}

.stat-item .stat-label {
    font-weight: 400;
    font-size: 22px;
    color: #81817E;
    text-align: left;
}

.stats-desc p {
    font-size: 24px;
    color: #FFFFFF;
    line-height: 38px;
    opacity: 0.54;
}

.stats-visual {
    width: 300px;
    height: 300px;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Simple placeholder for the gold cube visual */
.gold-cube-graphic {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, #FED800 0%, #B8860B 100%);
    border-radius: 20px;
    box-shadow: 0 0 30px rgba(254, 216, 0, 0.3);
    position: relative;
    z-index: 2;
    transform: rotate(45deg);
}

.orbit-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 240px;
    height: 240px;
    border: 1px solid rgba(254, 216, 0, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%) rotateX(60deg);
}

/* Fields Section */
.about-fields {
    padding-bottom: 100px;
}

.fields-showcase {
    height: 723px;
    background-color: #0F0F0F;
    background-image: url('img/about-bottom.png');
    background-size: contain;
    background-position: top left;
    border-radius: 4px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.field-display-area {
    flex: 1;
    display: flex;
    align-items: center;
    padding: 0 100px;
    position: relative;
}

.field-content {
    position: relative;
    width: 700px;
    z-index: 2;
    padding-left: 20px;
}

.field-number {
    font-family: 'Arial', sans-serif;
    font-size: 140px;
    font-weight: 700;
    color: transparent;
    -webkit-text-stroke: 1px #A2A2A2;
    position: absolute;
    top: 80px;
    left: -20px;
    z-index: -1;
    opacity: 0.6;
    line-height: 1;
}
.field-info{
    width: 780px;
    display: flex;
    justify-content: space-between;
    position: absolute;
    top: 120px;
    left: -15px;
}

.field-info h3 {
    font-weight: 400;
    font-size: 32px;
    color: #FFFFFF;
    margin-bottom: 24px;
    font-weight: 500;
    position: relative;
    letter-spacing: 2px;
}

.field-info p {
    font-size: 16px;
    color: rgba(255, 255, 255, 1);
    line-height: 33px;
    margin-bottom: 0;
    max-width: 500px;
}

.nav-controls {
    position: absolute;
    right: 150px;
    bottom: 80px;
    display: flex;
    gap: 20px;
    z-index: 10;
}

.nav-btn {
    width: 55px;
    height: 55px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0, 0.1);
}
.nav-btn img {
    height: 100%;
    width: 100%;
}
.nav-btn.active{
    background: #fed800;
}
.next img{
    transform: scaleX(-1);
    filter: brightness(0);
}



/* Tabs Section */
.fields-tabs {
    height: 245px;
    background: #151515;
    display: flex;
    width: 100%;
}

.field-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.field-tab::after {
    content: '';
    position: absolute;
    right: 0;
    top: 30%;
    height: 40%;
    width: 1px;
    background: rgba(255, 255, 255, 0.1);
}

.field-tab:last-child::after {
    display: none;
}

.field-tab.active {
    background: #FED800;
    color: #000;
}

.field-tab.active::after {
    display: none;
}

/* Icons */
.tab-icon {
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}
.tab-icon::after{
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 45%;
    width: 35px;
    height: 2px;
    background: #B9B9B9;
}
.active .tab-icon::after{
    background: #030506;
}

.tab-icon img {
    height: 50px;
    width: auto;
    display: block;
    filter: brightness(0) invert(1); /* White icons for inactive */
    transition: all 0.3s;
}
.field-tab:hover .tab-icon img {
    filter: brightness(0); /* Black icons for active */
}
.field-tab:hover .tab-icon::after{
    background: #030506;
}

.field-tab.active .tab-icon img {
    filter: brightness(0); /* Black icons for active */
}

.field-tab span {
    font-size: 18px;
    letter-spacing: 1px;
}

.field-tab:hover, .field-tab.active {
    background: #FED800;
    color: #000;
}

/* Contact Section */
.about-contact {
    padding: 80px 0;
    background-color: #030506;
}

.contact-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.contact-en {
    font-size: 60px;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.03);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    z-index: 0;
    letter-spacing: 10px;
}
.news-section-title {
    position: relative;
    display: inline-block;
    z-index: 1;
    font-weight: 300;
    font-size: 50px;
    color: #FFFFFF;
    line-height: 74px;
}

.news-section-title::before {
    content: attr(data-en);
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 61px;
    font-weight: bold;
    color: rgba(254, 216, 0, 0.1); /* Subtle yellow tint */
    z-index: -1;
    white-space: nowrap;
    text-transform: uppercase;
    font-family: Arial, sans-serif;
    letter-spacing: 2px;
    background: linear-gradient(to bottom, #FDD01F 0%, #030506 65%);
    opacity:0.8;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.contact-cn {
    font-size: 32px;
    color: #fff;
    position: relative;
    z-index: 1;
}

.sparkle-icon {
    width: 36px;
    height: 91px;
    position: absolute;
    top: 0;
    right: 30%;
}

.contact-map {
    width: 1380px;
    height: 445px;
    margin: 0 auto;
    background: #111; /* Map bg placeholder */
    border-radius: 10px;
    margin-bottom: 60px;
    position: relative;
    overflow: hidden;
    background-image: url('img/map.png'); /* User needs to provide */
    background-size: cover;
    opacity: 0.6;
}

.map-point {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    background: #FED800;
    border-radius: 50%;
    box-shadow: 0 0 0 5px rgba(254, 216, 0, 0.3);
}

.contact-form-section {
    max-width: 1380px;
    margin: 0 auto;
}

.contact-form-section h3 {
    font-weight: 400;
    font-size: 32px;
    color: #FFFFFF;
    margin-bottom: 59px;
}

.form-row {
    display: flex;
    gap: 60px;
    margin-bottom: 43px;
}

.input-group {
    flex: 1;
    gap: 60px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    height: 70px;

    background: #161616;
    border: none;
    padding: 15px 20px;
    color: #fff;
    font-size: 20px;
    border-radius: 4px;
    transition: all 0.3s;
}

.contact-form textarea {
    height: 260px;
    resize: none;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: #fff;
    opacity: 1;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #FED800;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
}

.form-actions {
    display: flex;
    gap: 20px;
}

.btn-submit, .btn-reset {
    padding: 12px 40px;
    border-radius: 12px;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-submit {
    background: #514103;
    color: #fff;
    border: none;
}

.btn-submit:hover {
    background: #FED800;
    color: #000;
}

.btn-reset {
    background: #FED800;
    color: #030506;
    border: none;
}

.btn-reset:hover {
    background: #E6C200;
}

/* Responsive */
@media (max-width: 768px) {
    .about-intro {
        padding: 60px 0;
    }

    .intro-content {
        margin-bottom: 60px;
    }

    .intro-top {
        flex-direction: column;
        gap: 30px;
    }
    
    .intro-left, .intro-right {
        width: 100%;
        flex: auto;
        transform: none;
    }

    .section-label {
        font-size: 24px;
        margin-bottom: 20px;
        line-height: 1.5;
    }

    .intro-content h2 {
        font-size: 28px;
    }

    .intro-content h2::after {
        height: 8px;
        bottom: 2px;
    }

    .intro-text-block p {
        font-size: 14px;
        line-height: 1.8;
    }

    .about-hero {
        height: 300px;
        padding-top: 60px;
        background-position: center;
    }

    .about-hero .hero-content {
        margin-top: 0;
        padding-left: 0;
    }
    
    .about-hero h1 {
        font-size: 28px;
    }
    
    .about-hero h1::before {
        border-width: 12px 12px 0 0;
        margin-right: 8px;
        margin-top: -20px;
    }

    .about-hero .subtitle {
        font-size: 14px;
        padding-left: 20px; 
    }

    .stats-card {
        flex-direction: column;
        height: auto;
        gap: 0;
        margin-bottom: 60px;
        padding: 20px 0;
    }
    
    .stats-visual {
        width: 100%;
        padding: 20px;
        flex: auto;
    }
    
    .visual-img {
        transform: none;
        max-height: 200px;
    }

    .stats-info {
        padding: 20px 30px;
        text-align: center;
        flex: auto;
    }

    .stat-items {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
        gap: 20px;
    }

    .stat-item {
        flex: 0 0 45%;
        text-align: center;
    }

    .stat-item .stat-label {
        text-align: center;
        font-size: 14px;
    }

    .stat-item .stat-value .num {
        font-size: 32px;
    }

    .stat-item .stat-value .unit {
        font-size: 14px;
        margin-left: 4px;
    }

    .stats-desc p {
        font-size: 16px;
        line-height: 1.6;
    }
    
    .fields-showcase {
        height: auto;
        min-height: 600px;
        background-size: cover;
        background-position: center;
    }

    .field-display-area {
        padding: 40px 20px;
        flex-direction: column;
    }

    .field-content {
        width: 100%;
        padding-left: 0;
    }

    .field-number {
        font-size: 80px;
        top: 0;
        left: 0;
        position: relative;
        margin-bottom: -40px;
        opacity: 0.3;
    }

    .field-info {
        width: 100%;
        position: relative;
        top: auto;
        left: auto;
        flex-direction: column;
        gap: 20px;
        margin-top: 20px;
    }

    .field-info h3 {
        font-size: 24px;
        margin-bottom: 10px;
    }

    .field-info p {
        font-size: 14px;
        line-height: 1.6;
        max-width: 100%;
    }

    .nav-controls {
        position: relative;
        right: auto;
        bottom: auto;
        margin-top: 40px;
        justify-content: flex-end;
        width: 100%;
    }

    .fields-tabs {
        flex-wrap: wrap;
        height: auto;
    }

    .field-tab {
        flex: 0 0 50%;
        padding: 20px 0;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .field-tab::after {
        display: none;
    }

    
    .contact-map {
        width: 100%;
        height: 250px;
        margin-bottom: 40px;
    }
    
    .news-section-title {
        font-size: 32px;
        line-height: 1.4;
    }
    
    .news-section-title::before {
        font-size: 40px;
        top: -15px;
    }
    
    .sparkle-icon {
        display: none;
    }

    .contact-form-section h3 {
        font-size: 24px;
        margin-bottom: 30px;
    }

    .form-row {
        flex-direction: column;
        gap: 20px;
        margin-bottom: 20px;
    }
    
    .input-group {
        gap: 20px;
    }

    .contact-form input,
    .contact-form textarea {
        height: 50px;
        font-size: 16px;
    }

    .contact-form textarea {
        height: 150px;
    }

    .form-actions {
        justify-content: center;
    }

    .btn-submit, .btn-reset {
        width: 48%;
        padding: 10px 0;
        font-size: 16px;
    }
}