@charset "UTF-8";

/*
 * index.css - 首页样式
 * 根据Figma设计图完全重构
 */

/* ===================== 主视觉区域 ===================== */
.hero-section {
    position: relative;
    width: 100vw;
    height: 100vh;
    min-height: 954px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 背景视频 */
.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

/* 备用背景图片（当视频不支持时） */
.hero-bg-fallback {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
}

/* 背景遮罩 */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.1);
    z-index: 2;
}

/* 主内容 */
.hero-content {
    position: relative;
    z-index: 3;
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
    text-align: center;
    padding: 0 60px;
}

/* 英文副标题 */
.hero-subtitle {
    font-weight: normal;
    font-size: 100px;
    color: rgba(255, 255, 255, 0.4);
    text-align: center;
    line-height: 1.4;
    margin: 0 auto;
    margin-bottom: 0;
    letter-spacing: 0.1em;
}

/* 中文主标题 */
.hero-title {
    font-family: Alimama ShuHeiTi, Alimama ShuHeiTi;
    font-weight: bold;
    font-size: 140px;
    line-height: 1.4;
    color: #FFFFFF;
    margin-bottom: 60px;
    text-align: center;
    letter-spacing: 0.05em;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* 第一个字和空格后第一个字保持白色 */
.title-first,
.title-space-first {
    color: #FFFFFF;
}

/* 其他字符为蓝色 */
.title-colored {
    color: #9AC9FF;
}

/* LOGO区域 */
.hero-logo {
    position: absolute;
    top: 19px;
    left: 260px;
    width: 194px;
    height: 68px;
    z-index: 4;
}

.logo-group {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.ymstp-logo {
    margin-top: 16px;
}

.logo-decoration {
    margin-top: 0;
}

.logo-text {
    position: absolute;
    bottom: 0;
    left: 9px;
    width: 120px;
    height: 16px;
}

/* 右侧装饰元素 */
.hero-decoration {
    position: absolute;
    top: 433px;
    right: 30px;
    width: 18px;
    height: 70px;
    z-index: 3;
}

.decoration-dots {
    position: relative;
    width: 100%;
    height: 100%;
}

.dot {
    position: absolute;
    border-radius: 50%;
}

.dot-1 {
    top: 0;
    left: 4px;
    width: 10px;
    height: 10px;
    background: rgba(0, 0, 0, 0.2);
}

.dot-2 {
    bottom: 0;
    left: 4px;
    width: 10px;
    height: 10px;
    background: rgba(0, 0, 0, 0.2);
}

.dot-group {
    position: absolute;
    top: 26px;
    left: 0;
    width: 18px;
    height: 18px;
}

.dot-3 {
    top: 4px;
    left: 4px;
    width: 10px;
    height: 10px;
    background: #FFFFFF;
}

.dot-4 {
    top: 0;
    left: 0;
    width: 18px;
    height: 18px;
    background: none;
    border: 0.5px solid #FFFFFF;
}

/* ===================== 数据展示区域 ===================== */
.data-section {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.6);
    padding: 32px 0;
    z-index: 5;
}

.data-container {
    max-width: 1920px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 465px;
    padding: 0 60px;
}

.data-item {
    display: flex;
    align-items: center;
    gap: 20px;
    color: #FFFFFF;
}

.data-icon {
    flex-shrink: 0;
}

.icon-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    /* border: 2px solid; */
    /* border-image: linear-gradient(180deg, #D8FBFF 0%, #7BA5FF 100%) 1; */
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
}

.data-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}

.data-number {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.data-number .number {
    font-family: 'DINPro', Arial, sans-serif;
    font-weight: 700;
    font-size: 40px;
    line-height: 1;
    color: #FFFFFF;
}

.data-number .unit {
    font-family: 'Source Han Sans CN', 'Microsoft YaHei', Arial, sans-serif;
    font-weight: 400;
    font-size: 14px;
    line-height: 1.43;
    color: #FFFFFF;
}

.data-label {
    font-family: 'Source Han Sans CN', 'Microsoft YaHei', Arial, sans-serif;
    font-weight: 500;
    font-size: 14px;
    line-height: 1.43;
    color: #FFFFFF;
    text-transform: uppercase;
}

/* ===================== 响应式设计 ===================== */

/* 1200px以下 - 中等屏幕 */
@media (max-width: 1200px) {
    .hero-content {
        max-width: 1200px;
        padding: 0 40px;
    }
    
    .hero-subtitle {
        font-size: 80px;
    }
    
    .hero-title {
        font-size: 120px;
        margin-bottom: 50px;
    }
    
    .data-container {
        max-width: 1200px;
        gap: 300px;
        padding: 0 40px;
    }
}

/* 768px以下 - 平板 */
@media (max-width: 768px) {
    .hero-section {
        min-height: 700px;
        height: 100vh;
    }
    
    .hero-content {
        padding: 0 30px;
    }
    
    .hero-subtitle {
        font-size: 60px;
        margin-bottom: 10px;
    }
    
    .hero-title {
        font-size: 80px;
        margin-bottom: 40px;
        line-height: 1.2;
    }
    
    /* 数据展示区域调整 */
    .data-section {
        padding: 25px 0;
    }
    
    .data-container {
        flex-wrap: wrap;
        gap: 40px;
        padding: 0 30px;
        justify-content: center;
    }
    
    .data-item {
        justify-content: center;
        gap: 15px;
        width: auto;
        min-width: 200px;
        flex: 0 1 auto;
    }
    
    .icon-circle {
        width: 50px;
        height: 50px;
    }
    
    .icon-circle img {
        width: 30px;
        height: 30px;
    }
    
    .data-number .number {
        font-size: 32px;
    }
    
    .data-number .unit {
        font-size: 12px;
    }
    
    .data-label {
        font-size: 12px;
        text-align: center;
    }
    
    .data-content {
        align-items: center;
    }
}

/* 480px以下 - 手机 */
@media (max-width: 480px) {
    .hero-section {
        min-height: 600px;
        height: 100vh;
    }
    
    .hero-content {
        padding: 0 20px;
    }
    
    .hero-subtitle {
        font-size: 40px;
        margin-bottom: 15px;
        line-height: 1.3;
    }
    
    .hero-title {
        font-size: 50px;
        margin-bottom: 30px;
        line-height: 1.1;
        letter-spacing: 0.02em;
    }
    
    /* 数据展示区域调整 */
    .data-section {
        padding: 20px 0;
    }
    
    .data-container {
        gap: 20px;
        padding: 0 20px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .data-item {
        gap: 8px;
        min-width: 140px;
        flex: 0 1 auto;
        text-align: center;
    }
    
    .icon-circle {
        width: 40px;
        height: 40px;
    }
    
    .icon-circle img {
        width: 24px;
        height: 24px;
    }
    
    .data-content {
        align-items: center;
        gap: 2px;
    }
    
    .data-number {
        align-items: baseline;
        gap: 2px;
        justify-content: center;
    }
    
    .data-number .number {
        font-size: 24px;
        line-height: 1.2;
    }
    
    .data-number .unit {
        font-size: 10px;
        line-height: 1.2;
    }
    
    .data-label {
        font-size: 10px;
        line-height: 1.3;
        text-align: center;
    }
    
    /* 装饰元素隐藏 */
    .hero-decoration {
        display: none;
    }
    
    /* LOGO区域调整 */
    .hero-logo {
        top: 15px;
        left: 20px;
        width: 120px;
        height: 42px;
    }
    
    .logo-group {
        transform: scale(0.7);
        transform-origin: left top;
    }
}

/* 360px以下 - 超小屏幕 */
@media (max-width: 360px) {
    .hero-section {
        min-height: 550px;
    }
    
    .hero-content {
        padding: 0 15px;
    }
    
    .hero-subtitle {
        font-size: 32px;
        margin-bottom: 10px;
    }
    
    .hero-title {
        font-size: 40px;
        margin-bottom: 25px;
        letter-spacing: 0;
    }
    
    .data-section {
        padding: 15px 0;
    }
    
    .data-container {
        gap: 15px;
        padding: 0 15px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .data-item {
        min-width: 120px;
        gap: 6px;
        flex: 0 1 auto;
    }
    
    .icon-circle {
        width: 32px;
        height: 32px;
    }
    
    .icon-circle img {
        width: 20px;
        height: 20px;
    }
    
    .data-number .number {
        font-size: 20px;
    }
    
    .data-number .unit {
        font-size: 9px;
    }
    
    .data-label {
        font-size: 9px;
    }
    
    .hero-logo {
        left: 15px;
        width: 100px;
        height: 35px;
    }
    
    .logo-group {
        transform: scale(0.6);
    }
}

/* 横屏模式优化 */
@media (max-width: 768px) and (orientation: landscape) {
    .hero-section {
        min-height: 500px;
        height: 100vh;
    }
    
    .hero-subtitle {
        font-size: 50px;
        margin-bottom: 5px;
    }
    
    .hero-title {
        font-size: 60px;
        margin-bottom: 20px;
    }
    
    .data-section {
        padding: 15px 0;
    }
    
    .data-container {
        flex-direction: row;
        gap: 50px;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .data-item {
        flex-direction: row;
        gap: 10px;
        max-width: 200px;
    }
}

/* 超高分辨率优化 */
@media (min-width: 1921px) {
    .hero-content {
        max-width: 2400px;
        padding: 0 80px;
    }
    
    .hero-subtitle {
        font-size: 120px;
    }
    
    .hero-title {
        font-size: 160px;
        margin-bottom: 80px;
    }
    
    .data-container {
        max-width: 2400px;
        gap: 600px;
        padding: 0 80px;
    }
    
    .data-section {
        padding: 40px 0;
    }
}