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

body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", "Segoe UI", Roboto, sans-serif;
    line-height: 1.7;
    color: #333;
    background-color: #fff;
    font-size: 16px;
}
a { text-decoration: none;color:#111;}
img { border:0;}
ul,ol{list-style:none}

.container { 
    width: 75%;
    margin: 0 auto;
}
/* 本地字体备用方案 */
@font-face {
    font-family: 'LocalFallbackSerif';
    font-style: normal;
    font-weight: 400;
    src: local('Times New Roman'), local('Times'), serif;
}

@font-face {
    font-family: 'LocalFallbackSans';
    font-style: normal;
    font-weight: 400;
    src: local('Arial'), local('Helvetica'), sans-serif;
}

/* 导航栏容器 */
.navbar {
    z-index: 1000;
}

/* 导航栏内容 */
.nav-container {
    width: 1400px;
    margin: 0 auto;
    padding: 0 55px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90px;
}

/* 公司Logo */
.logo {
    text-decoration: none;
}

/* 桌面导航菜单 */
.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 40px;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    padding: 8px 0;
    transition: color 0.3s;
    position: relative;
}

.nav-link:hover {
    color: red;
}

/* 当前选中菜单项效果 */
.nav-link.active {
    color: #2563eb;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(to right, #2563eb, #4f46e5);
    border-radius: 2px;
}

/* 行动号召按钮 */
.cta-button {
    background: linear-gradient(to right, #f50000, #8807a9);
    color: white;
    border: none;
    padding: 2px 22px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
}

/* 移动端菜单按钮 */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: #1e293b;
    cursor: pointer;
    padding: 8px;
}

header { 
    position:fixed;
    top:0;
    left:0;
    overflow:hidden;
    width: 100%;
    z-index:9999;
}

header.active { 
    background: rgba(255,255,255,.9);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

header.active a { 
    color:#666;
}

header.active .cta-button { 
    color:#fff;
}

header.active .logo { 
    color:#111;
}

header.active .logo .brand-name { 
    color:#111;
}

header.active .logo .brand-url { 
    color:#111;
}

header.active .logo .logo-img{ 
    filter: brightness(0) saturate(100%) invert(16%) sepia(99%) saturate(7458%) hue-rotate(0deg);
}

.header { 
    width: 100%;
}

.banner {
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 100vh;
    background: linear-gradient( 90deg, #111 0.126%, #333 44.067%, #333 97.163% );
    background-size: cover;
}

#tqVideo { 
    width:100%;
    height:100%;
    object-fit: cover;
}

.banner_bottom { 
    position:absolute;
    left:0;
    bottom:-20px;
    width:100%;
}

/* 目标div样式 */
.zeoch-brand {
    width: 200px;
    height: 50px;
    display: flex;
    overflow: hidden;
    font-family: 'Segoe UI', Arial, sans-serif;
}

/* 第一列：图片 */
.image-col {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius:5px;
}

.logo-img {
    width: 90%;
    height: 90%;
    object-fit: contain;
    filter: brightness(0) invert(1);
    filter: brightness(0) invert(100%) saturate(100%) hue-rotate(0deg);
    filter: brightness(0) saturate(100%) invert(16%) sepia(99%) saturate(7458%) hue-rotate(0deg);
}

/* 第二列：文本区域 */
.text-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 2px;
    overflow: hidden;
}

.brand-name {
    font-weight: 700;
    font-size: 26px;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.2;
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
}

.brand-url {
    font-size: 18px;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 0.7;
}

/* 横幅样式 */
.banner .banner_fo { 
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:100%;
    z-index:2;
}

.banner .text {
    width:100%;
    height:100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center; 
    align-content: center;
}

.banner .text .n { 
    text-align:center;
    color:#fff;
    font-size:4rem;
    font-weight:900;
}

.banner .text .m { 
    text-align:center;
    color:#fff;
    font-size:2rem;
}
.banner_fo { 
    --gradient-color:#111;
    --gradient-size:110px;
    background: linear-gradient(to top, 
        transparent  10%,
        transparent  50%,
        #111 100%);
}


.mediaCarouselContainer,.mediaCarouselContainer main,.mediaCarouselContainer .videoDisplayPanel {
    width: 100%;
    height: 100%;
}


.videoDisplayPanel {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
    background-color: #1e293b;
}

.mediaSegment {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.mediaSegment.activeDisplay {
    opacity: 1;
}

.mediaSegment video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carouselControllers {
    position: absolute;
    bottom: 40px;
    right: 40px;
    display: flex;
    gap: 20px;
    z-index: 100;
}

.controllerButton {
    background-color: rgba(30, 41, 59, 0.7);
    border: 2px solid rgba(96, 165, 250, 0.3);
    color: #60a5fa;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.controllerButton:hover {
    background-color: rgba(96, 165, 250, 0.2);
    border-color: #60a5fa;
    transform: scale(1.15);
    box-shadow: 0 0 20px rgba(96, 165, 250, 0.4);
}

.positionIndicators {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 18px;
    z-index: 100;
}

.slideMarker {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: rgba(148, 163, 184, 0.5);
    cursor: pointer;
    transition: all 0.4s ease;
    border: 2px solid transparent;
}

.slideMarker.activeMarker {
    background-color: #60a5fa;
    transform: scale(1.3);
    box-shadow: 0 0 15px rgba(96, 165, 250, 0.7);
    border-color: #f8fafc;
}

.positionCounter {
    position: absolute;
    top: 40px;
    right: 40px;
    background-color: rgba(15, 23, 42, 0.7);
    color: #f8fafc;
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 1rem;
    z-index: 100;
    backdrop-filter: blur(10px);
    border: 1px solid #334155;
}

.mediaLoading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #f8fafc;
    font-size: 1.4rem;
    z-index: 5;
    background-color: rgba(15, 23, 42, 0.8);
    padding: 20px 40px;
    border-radius: 15px;
    border: 1px solid #334155;
}
.banner .video { width:100%;height:100%;}
.business-service{
    background: #f9fbff ;
    padding: 100px 0;
}
/* 唯一class：业务服务容器 */
.business-service-container {
    text-align: center;
}
/* 唯一class：标签提示 */
.business-service-tag span {
    background-color: #ff6b6b;
    color: white;
    font-size: calc(1.6rem - var(--eve));
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 20px;
}
/* 唯一class：主标题 */
.business-service-main-title {
    font-size: calc(3.8rem - var(--eve));
    font-weight: bold;
    color: #333;
    position: relative;
    display: inline-block;
}
/* 唯一class：主标题下划线装饰 */
.business-service-main-title span {
    display: inline-block;
    position: relative;
}
.business-service-main-title span::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: #fff056;
    z-index: 0;
}
.business-service-main-title img { width:calc(4rem - var(--eve));}

/* 唯一class：描述文本 */
.business-service-desc-text {
    color: #666;
    font-size: calc(1.2rem - var(--eve));
    margin: 15px 0 0.5vw;
}
/* 唯一class：数据统计容器 */
.business-service-stats-wrapper {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
}
/* 唯一class：单个数据项 */
.business-service-stat-single-item {
    text-align: center;
}
/* 唯一class：数据数字 */
.business-service-stat-number {
    font-size: calc(3.8rem - var(--eve));
    font-weight: bold;
    color: #333;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}
/* 唯一class：数据数字附属标记 */
.business-service-stat-number-mark {
    color: #ff6b6b;
    font-size: calc(3.3rem - var(--eve));
    margin-left: 5px;
}
/* 唯一class：数据文本说明 */
.business-service-stat-explain-text {
    color: #666;
    font-size: calc(1.3rem - var(--eve));
}
.business-service-tag i { font-size:2rem;}
.data-tool { margin-top:5vw;}
.data-tool-container { 
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    box-shadow: 0px 4px 14px 0px rgba(204, 213, 222, 0.5);
    
}
.data-tool-item { 
    width:25%;
    height: 22rem;
    margin-right: 2px;
    display: flex;
flex-direction: column;
justify-content: space-evenly;
align-items: center;
background: #fff;
}
.data-tool-h { font-size:1.6rem;font-weight:700;}
.data-tool-d { font-size:0.8rem;color:#666;background:#ecf1ff;width:100%;text-align:center;line-height:3rem;}
.data-tool-img { width: 15.3684rem;height: 11.2105rem;
    display: flex;
    flex-direction: column;
    justify-content: space-evenly;
    align-items: center;
}
.data-tool-img img { width:100%}
.data-tool-img i { font-size:10rem;color:#ecf1ff;}
/* 页面主体 */
.tabFixedWrapper {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    /*background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);*/
    /*min-height: 100vh;*/
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 5vw 0;
}

/* 主容器 */
.tabFixedContainer {
    
    background: rgba(255, 255, 255, 0.98);
    border-radius: 18px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    box-shadow: 0px 4px 14px 0px rgba(204, 213, 222, 0.5);
}

/* 标题区域 */
.tabFixedHeader {
    background: linear-gradient(90deg, #0f2027, #2c5364);
    background: #f0f5ff;
    color: #111;
    padding: 28px 40px;
    text-align: center;
}

.tabFixedTitle {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.tabFixedSubtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin: 0 auto;
    line-height: 1.6;
    color: #666;
}

/* 内容区域容器 - 固定高度 */
.tabFixedPanel {
    display: flex;
    height: calc(100vw - 60rem); /* 固定高度，避免抖动 */
    border-top: 1px solid #e2e8f0;
}

/* 左侧Tab列 */
.tabFixedSelector {
    width: 20rem;
    background: #f8fafc;
    border-right: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
}

/* Tab项样式 */
.tabFixedItem {
    padding: 24px 26px;
    cursor: pointer;
    border-bottom: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    flex: 1;
    min-height: calc((100vw - 60rem) / 6); /* 均匀分布高度 */
}

.tabFixedItem:hover {
    background-color: #f0f5ff;
}

/* 选中状态样式 */
.tabFixedActive {
    background-color: #f0f5ff;
    font-weight: 700;
    color: #0f2027;
}

/* 边框动画效果 - 从中间向上下展开，固定高度 */
.tabFixedActive::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    height: 0;
    width: 5px;
    background: linear-gradient(to bottom, #0f2027, #2c5364);
    border-radius: 2px 0 0 2px;
    box-shadow: 0 0 12px rgba(15, 32, 39, 0.5);
    animation: borderFixedExpand 0.6s ease-out forwards;
    transform-origin: center;
}

@keyframes borderFixedExpand {
    0% {
        height: 0;
        top: 50%;
    }
    100% {
        height: calc(100% + 1px); /* 覆盖整个Tab高度 */
        top: 0;
    }
}

/* Tab序号 */
.tabFixedNumber {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, #ff6b6b, #bf6bff);
    background: #ff6b6b;
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.1rem;
    margin-right: 16px;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(15, 32, 39, 0.3);
}

/* Tab内容 */
.tabFixedContent {
    flex: 1;
}

.tabFixedName {
    font-size: 1rem;
    margin-bottom: 6px;
    color: #1e293b;
}

.tabFixedDesc {
    font-size: 0.62rem;
    color: #64748b;
    line-height: 1.4;
}

/* 右侧内容区域 - 固定高度 */
.tabFixedDisplay {
    flex: 1;
    padding: 40px;
    padding-left: 50px;
    background: white;
    position: relative;
    overflow: hidden;
    height: 580px; /* 与容器高度一致 */
        height: calc(100vw - 60rem);
}

/* 内容卡片 - 绝对定位，固定高度 */
.contentFixedCard {
    position: absolute;
    width: calc(100% - 80px);
    height: calc(100% - 80px); /* 固定内容区域高度 */
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.4s ease, transform 0.4s ease;
    pointer-events: none;
    /*overflow-y: auto;*/ /* 内容过长时可以滚动 */
    padding-right: 10px; /* 为滚动条留空间 */
}

/* 自定义滚动条 */
.contentFixedCard::-webkit-scrollbar {
    width: 6px;
}

.contentFixedCard::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.contentFixedCard::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.contentFixedCard::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

.contentFixedActive {
    opacity: 1;
    transform: translateX(0);
    pointer-events: all;
}

/* 内容图标 */
.contentFixedIcon {
    width: 85px;
    height: 85px;
    background: linear-gradient(135deg, #0f2027, #2c5364);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    box-shadow: 0 8px 20px rgba(15, 32, 39, 0.2);
}

.contentFixedSymbol {
    font-size: 2.8rem;
    color: white;
}

/* 内容标题 */
.contentFixedTitle {
    font-size: 2.2rem;
    color: #0f2027;
    margin-bottom: 16px;
    font-weight: 800;
    line-height: 1.2;
}

/* 内容描述 - 固定最大高度 */
.contentFixedText {
    color: #999;
    line-height: 1.7;
    margin-bottom: 20px;
    font-size: 1.1rem;
    max-height: 120px; /* 限制描述高度 */
    overflow-y: auto;
}

/* 特性列表 - 固定高度区域 */
.featuresFixedList {
    margin-top: 15px;
    max-height: 220px; /* 限制列表高度 */
    overflow-y: auto;
    padding-right: 5px;
    max-height: calc(100vw - 70rem);
}

.featureFixedItem {
    padding: 12px 0;
    padding-left: 36px;
    position: relative;
    color: #475569;
    font-size: 1.05rem;
    border-bottom: 1px solid #f0f0f0;
}

.featureFixedItem:last-child {
    border-bottom: none;
}

.featureFixedItem::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 26px;
    height: 26px;
    background-color: #ff6b6b;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 0.9rem;
}
.featureFixedItem::before {
    content: '✓';
}
.featureFixedItem:nth-child(1)::before {
    content: '✓';
}

.featureFixedItem:nth-child(2)::before {
    content: '✓';
}

.featureFixedItem:nth-child(3)::before {
    content: '✓';
}

.featureFixedItem:nth-child(4)::before {
    content: '✓';
}

.featureFixedItem:nth-child(5)::before {
    content: '✓';
}

/* 页脚 */
.tabFixedFooter {
    padding: 20px;
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
    text-align: center;
    color: #64748b;
    font-size: 0.95rem;
}

.footerFixedHighlight {
    color: #0f2027;
    font-weight: 700;
}

/* 响应式设计 */
@media (max-width: 950px) {
    .tabFixedPanel {
        flex-direction: column;
        height: auto; /* 移动端取消固定高度 */
        min-height: 800px;
    }
    
    .tabFixedSelector {
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
        border-right: none;
        border-bottom: 1px solid #e2e8f0;
        height: auto;
    }
    
    .tabFixedItem {
        flex: 1;
        min-width: 150px;
        padding: 18px 15px;
        justify-content: center;
        text-align: center;
        flex-direction: column;
        min-height: auto;
    }
    
    /* 移动端边框动画 */
    .tabFixedActive::after {
        width: 100%;
        height: 5px;
        top: auto;
        bottom: 0;
        left: 0;
        right: auto;
        animation: borderFixedMobileExpand 0.6s ease-out forwards;
    }
    
    @keyframes borderFixedMobileExpand {
        0% {
            width: 0;
            left: 50%;
        }
        100% {
            width: 100%;
            left: 0;
        }
    }
    
    .tabFixedNumber {
        margin-right: 0;
        margin-bottom: 10px;
    }
    
    .tabFixedDisplay {
        height: 600px; /* 移动端固定内容区域高度 */
        padding: 30px;
    }
    
    .contentFixedCard {
        width: calc(100% - 60px);
        height: calc(100% - 60px);
    }
}

@media (max-width: 650px) {
    .tabFixedHeader {
        padding: 22px 20px;
    }
    
    .tabFixedTitle {
        font-size: 2rem;
    }
    
    .tabFixedSubtitle {
        font-size: 1rem;
    }
    
    .tabFixedItem {
        min-width: 130px;
        padding: 16px 12px;
    }
    
    .tabFixedName {
        font-size: 1.15rem;
    }
    
    .contentFixedTitle {
        font-size: 1.9rem;
    }
    
    .contentFixedText {
        font-size: 1.05rem;
        max-height: 150px;
    }
    
    .featuresFixedList {
        max-height: 250px;
    }
}

/* 平滑过渡效果 */
.tabFixedItem {
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.contentFixedCard {
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1), 
               transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 加载动画 */
@keyframes smoothAppear {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tabFixedContainer {
    animation: smoothAppear 0.8s ease-out;
}
:root {
    /* 主色调 - 量子蓝渐变 */
    --quantum-blue: #0d1b2a;
    --nebula-purple: #415a77;
    --starlight-teal: #4cc9f0;
    --singularity-pink: #f72585;
    --event-horizon: #7209b7;
    --chronos-gold: #ffd166;
    --void-black: #0a0a0f;
    --luminous-white: #f8f9fa;
    --neutrino-gray: #6c757d;
    --dark-matter: #1c1c2e;
    
    /* 界面变量 */
    --nexus-radius: 22px;
    --chrono-transition: all 0.45s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --quantum-shadow: 0 15px 35px rgba(13, 27, 42, 0.15);
    --singularity-shadow: 0 25px 50px rgba(13, 27, 42, 0.25);
    --hologram-glow: 0 0 25px rgba(76, 201, 240, 0.4);
}

.nexus { background: #f9fbff;padding:5vw 0;}

.nexus-container {
    position: relative;
    z-index: 1;
}

/* 量子信标 - 顶部区域 */
.quantum-beacon {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 50px;
    padding: 30px 40px;
    background: linear-gradient(135deg, rgba(13, 27, 42, 0.85), rgba(65, 90, 119, 0.7));
    backdrop-filter: blur(15px);
    border-radius: var(--nexus-radius);
    border: 1px solid rgba(76, 201, 240, 0.2);
    box-shadow: var(--quantum-shadow), inset 0 0 30px rgba(76, 201, 240, 0.1);
    position: relative;
    overflow: hidden;
}

.quantum-beacon::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(76, 201, 240, 0.05), transparent);
    animation: chrono-scan 8s infinite linear;
}

@keyframes chrono-scan {
    0% { left: -100%; }
    100% { left: 100%; }
}

.nexus-core {
    display: flex;
    align-items: center;
    gap: 20px;
}

.chronos-sphere {
    width: 70px;
    height: 70px;
    background: radial-gradient(circle, var(--starlight-teal) 0%, var(--quantum-blue) 70%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--luminous-white);
    font-size: 2rem;
    box-shadow: 0 0 30px var(--starlight-teal);
    position: relative;
    animation: pulsar 4s infinite ease-in-out;
}

@keyframes pulsar {
    0%, 100% { transform: scale(1); box-shadow: 0 0 30px var(--starlight-teal); }
    50% { transform: scale(1.05); box-shadow: 0 0 50px var(--starlight-teal); }
}

.nexus-core-text {
    display: flex;
    flex-direction: column;
}

.nexus-title {
    font-size: 2.8rem;
    font-weight: 800;
    background: linear-gradient(to right, var(--starlight-teal), var(--singularity-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.1;
    letter-spacing: 1px;
    text-shadow: 0 5px 15px rgba(76, 201, 240, 0.3);
}

.nexus-subtitle {
    font-size: 1rem;
    color: var(--starlight-teal);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-top: 8px;
    font-weight: 300;
}

.chronos-display {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 12px;
}

.temporal-stamp {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--luminous-white);
    background: rgba(13, 27, 42, 0.6);
    padding: 10px 25px;
    border-radius: 50px;
    border: 1px solid rgba(76, 201, 240, 0.3);
}

.dimensional-marker {
    display: flex;
    gap: 15px;
}

.phase-tag {
    background: linear-gradient(135deg, var(--singularity-pink), var(--event-horizon));
    color: var(--luminous-white);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 5px 15px rgba(247, 37, 133, 0.3);
}

/* 相位选择器 - Tab区域 */
.phase-selector {
    margin-bottom: 50px;
}

.selector-header {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 25px;
}

.dimensional-label {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111;
    display: flex;
    align-items: center;
    gap: 15px;
}

.dimensional-label::before {
    content: '';
    width: 50px;
    height: 3px;
    background: linear-gradient(to right, #ff6b6b, transparent);
    border-radius: 2px;
}

.active-phase {
    font-size: 1rem;
    color: var(--neutrino-gray);
    background: rgba(65, 90, 119, 0.3);
    padding: 8px 20px;
    border-radius: 50px;
    border: 1px solid rgba(76, 201, 240, 0.2);
}

.phase-matrix {
    /*background: linear-gradient(135deg, rgba(13, 27, 42, 0.85), rgba(28, 28, 46, 0.9));
    backdrop-filter: blur(10px);
    border-radius: var(--nexus-radius);
    border: 1px solid rgba(76, 201, 240, 0.15);
    box-shadow: var(--quantum-shadow);
    padding: 20px;*/
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    position: relative;
    overflow: hidden;
}


.quantum-tab {
    flex: 1;
    min-width: 200px;
    padding: 22px 30px;
    background: rgba(28, 28, 46, 0.6);
    background: #fff;
    border: 2px solid transparent;
    border-radius: 18px;
    font-size: 1.2rem;
    font-weight: 700;
    color: #111;
    cursor: pointer;
    transition: var(--chrono-transition);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    text-align: center;
    backdrop-filter: blur(5px);
}

.quantum-tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(76, 201, 240, 0.1), transparent);
    transition: left 0.7s;
}

.quantum-tab:hover::before {
    left: 100%;
}

.quantum-tab:hover {
    transform: translateY(-8px);
    /*
    background: rgba(76, 201, 240, 0.15);
    transform: translateY(-8px);
    box-shadow: var(--hologram-glow);
    border-color: rgba(76, 201, 240, 0.3);*/
}

.quantum-tab.active {
    /*background: linear-gradient(135deg, rgba(76, 201, 240, 0.2), rgba(114, 9, 183, 0.15));
    border-color: var(--starlight-teal);
    box-shadow: var(--hologram-glow), 0 10px 30px rgba(13, 27, 42, 0.3);*/
}

.tab-glyph {
    font-size: 1.5rem;
    color: var(--starlight-teal);
    transition: var(--chrono-transition);
}

.quantum-tab.active .tab-glyph {
    color: var(--chronos-gold);
    transform: scale(1.2) rotate(15deg);
    text-shadow: 0 0 15px var(--chronos-gold);
}

.entanglement-count {
    background: rgba(247, 37, 133, 0.2);
    color: var(--singularity-pink);
    font-size: 0.85rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 50px;
    transition: var(--chrono-transition);
}

.quantum-tab.active .entanglement-count {
    background: var(--singularity-pink);
    color: var(--luminous-white);
}

/* 现实场域 - 内容区域 */
.reality-field {
    /*background: linear-gradient(135deg, rgba(13, 27, 42, 0.9), rgba(28, 28, 46, 0.95));
    backdrop-filter: blur(15px);
    border-radius: var(--nexus-radius);
    border: 1px solid rgba(76, 201, 240, 0.2);
    box-shadow: var(--singularity-shadow);
    padding: 45px;*/
    min-height: 750px;
    position: relative;
    /*overflow: hidden;*/
}

.reality-field::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(76, 201, 240, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(100px, -100px);
    z-index: 0;
}

.phase-content {
    display: none;
    position: relative;
    z-index: 1;
}

.phase-content.active {
    display: block;
    animation: quantum-reveal 0.7s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes quantum-reveal {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.content-mantle {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(76, 201, 240, 0.2);
}

.mantle-core {
    max-width: 70%;
}

.phase-title {
    font-size: 3.2rem;
    font-weight: 900;
    background: linear-gradient(to right, var(--starlight-teal), var(--singularity-pink), var(--chronos-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.1;
    margin-bottom: 20px;
    text-shadow: 0 10px 30px rgba(76, 201, 240, 0.2);
}

.phase-description {
    color: var(--neutrino-gray);
    font-size: 1.3rem;
    line-height: 1.6;
    max-width: 800px;
}

.reality-metrics {
    display: flex;
    gap: 30px;
}

.metric-node {
    text-align: center;
    padding: 20px 30px;
    background: rgba(13, 27, 42, 0.5);
    border-radius: 20px;
    border: 1px solid rgba(76, 201, 240, 0.2);
    min-width: 140px;
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--starlight-teal);
    line-height: 1;
    margin-bottom: 8px;
    text-shadow: 0 0 15px rgba(76, 201, 240, 0.5);
}

.metric-label {
    font-size: 1rem;
    color: var(--neutrino-gray);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

/* 事件网格 - 文章布局 */
.event-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 35px;
}

@media (max-width: 1200px) {
    .event-grid {
        grid-template-columns: 1fr;
    }
}

.chrono-card {
    /*background: linear-gradient(135deg, rgba(28, 28, 46, 0.7), rgba(13, 27, 42, 0.8));*/
    background: #fff;
    border-radius: 25px;
    padding: 35px;
    transition: var(--chrono-transition);
    overflow: hidden;
    border: 1px solid rgba(76, 201, 240, 0.15);
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.chrono-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--starlight-teal), var(--singularity-pink));
    opacity: 0;
    transition: opacity 0.4s;
}

.chrono-card:hover {
    transform: translateY(-15px) scale(1.02);
    /*box-shadow: var(--singularity-shadow), 0 0 40px rgba(76, 201, 240, 0.2);
    border-color: rgba(76, 201, 240, 0.4);*/
}

.chrono-card:hover::before {
    opacity: 1;
}

.chrono-card:hover .event-glyph {
    transform: scale(1.15) rotate(10deg);
    background: linear-gradient(135deg, var(--starlight-teal), var(--quantum-blue));
    color: var(--luminous-white);
    box-shadow: 0 0 25px var(--starlight-teal);
}

.event-header {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}

.event-glyph {
    width: 70px;
    height: 70px;
    background: rgba(76, 201, 240, 0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--starlight-teal);
    font-size: 2rem;
    margin-right: 25px;
    transition: var(--chrono-transition);
    flex-shrink: 0;
}

.event-category-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.reality-strand {
    background: linear-gradient(135deg, rgba(247, 37, 133, 0.15), rgba(114, 9, 183, 0.1));
    color: var(--singularity-pink);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 700;
    display: inline-block;
    width: fit-content;
    border: 1px solid rgba(247, 37, 133, 0.3);
}

.temporal-coordinate {
    color: var(--neutrino-gray);
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.event-title {
    font-size: 0.9rem;
    font-weight: 800;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.3;
    flex-grow: 1;
    /*text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);*/
}

.event-description {
    color: var(--neutrino-gray);
    margin-bottom: 30px;
    line-height: 1.8;
    font-size: 0.8rem;
    -webkit-line-clamp: 2;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
}

.event-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 25px;
    border-top: 1px solid rgba(76, 201, 240, 0.2);
}

.entanglement-tags {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.quantum-tag {
    background: rgba(255, 209, 102, 0.1);
    background: #f9fbff;
    color: #666;
    padding: 6px 15px;
    border-radius: 50px;
    font-size: 0.5rem;
    font-weight: 600;
}
.nexus-portal {
    font-size: 0.6rem;
}

.nexus-portal {
    color: #111;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: var(--chrono-transition);
    padding: 10px 20px;
    border-radius: 12px;
    background: rgba(76, 201, 240, 0.1);
    background: #f9fbff;
}

.nexus-portal:hover {
    gap: 18px;
    transform: translateX(8px);
}

/* 量子奇点 - 页脚 */
.quantum-singularity {
    margin-top: 70px;
    text-align: center;
    color: var(--neutrino-gray);
    font-size: 1rem;
    padding: 40px 0 30px;
    border-top: 1px solid rgba(76, 201, 240, 0.2);
    position: relative;
}

.quantum-singularity::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--starlight-teal), transparent);
    border-radius: 0 0 2px 2px;
}

.singularity-links {
    display: flex;
    justify-content: center;
    gap: 35px;
    margin: 30px 0;
}

.dimensional-link {
    color: var(--starlight-teal);
    text-decoration: none;
    font-weight: 600;
    transition: var(--chrono-transition);
    position: relative;
    padding: 8px 0;
}

.dimensional-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--singularity-pink);
    transition: width 0.4s;
}

.dimensional-link:hover {
    color: var(--singularity-pink);
}

.dimensional-link:hover::after {
    width: 100%;
}

.hologram-network {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin-top: 30px;
}

.holo-node {
    width: 50px;
    height: 50px;
    background: rgba(28, 28, 46, 0.7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neutrino-gray);
    transition: var(--chrono-transition);
    border: 1px solid rgba(76, 201, 240, 0.2);
}

.holo-node:hover {
    background: var(--starlight-teal);
    color: var(--quantum-blue);
    transform: translateY(-8px) scale(1.1);
    border-color: var(--starlight-teal);
    box-shadow: 0 10px 25px rgba(76, 201, 240, 0.4);
}

/* 维度切换器 - 主题按钮 */
.dimensional-shifter {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(13, 27, 42, 0.9), rgba(28, 28, 46, 0.95));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), 0 0 20px rgba(76, 201, 240, 0.3);
    cursor: pointer;
    z-index: 100;
    transition: var(--chrono-transition);
    border: 2px solid rgba(76, 201, 240, 0.3);
}

.dimensional-shifter:hover {
    transform: rotate(45deg) scale(1.1);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(76, 201, 240, 0.5);
    border-color: var(--starlight-teal);
}

.dimensional-shifter i {
    font-size: 1.8rem;
    color: var(--starlight-teal);
}

/* 响应式设计 */
@media (max-width: 1100px) {
    .quantum-beacon {
        flex-direction: column;
        gap: 30px;
        align-items: flex-start;
        padding: 30px;
    }
    
    .chronos-display {
        align-items: flex-start;
    }
    
    .content-mantle {
        flex-direction: column;
        align-items: flex-start;
        gap: 30px;
    }
    
    .mantle-core {
        max-width: 100%;
    }
    
    .phase-title {
        font-size: 2.5rem;
    }
    
    .reality-field {
        padding: 30px;
    }
    
    .quantum-tab {
        min-width: calc(50% - 15px);
    }
}

@media (max-width: 768px) {
    .quantum-tab {
        min-width: 100%;
    }
    
    .event-grid {
        gap: 25px;
    }
    
    .chrono-card {
        padding: 25px;
    }
    
    .phase-title {
        font-size: 2rem;
    }
    
    .reality-metrics {
        width: 100%;
        justify-content: space-between;
    }
    
    .metric-node {
        min-width: 0;
        flex: 1;
        padding: 15px;
    }
    
    .nexus-title {
        font-size: 2.2rem;
    }
    
    .dimensional-shifter {
        width: 60px;
        height: 60px;
        bottom: 25px;
        right: 25px;
    }
}

/* 加载效果 */
@keyframes quantum-fluctuation {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

.quantum-loading {
    animation: quantum-fluctuation 1.5s infinite;
}

/* 波纹效果 */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(76, 201, 240, 0.3);
    transform: scale(0);
    animation: ripple 0.6s linear;
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}