/* ============================================
   Lumora - Mindfulness App Hero Section
   ============================================ */

/* Fallback font from Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700;800;900&display=swap');

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-style: normal;
}

html, body {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
    background: #000;
    color: #fff;
    overflow-x: auto;
    overflow-y: auto;
    height: auto;
    min-height: 100%;
    font-style: normal !important;
}

body {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
    font-style: normal !important;
}

/* ============================================
   Liquid Glass Effect
   ============================================ */
.liquid-glass {
    background: rgba(255, 255, 255, 0.01);
    background-blend-mode: luminosity;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border: none;
    box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.liquid-glass::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1.4px;
    background: linear-gradient(180deg,
        rgba(255,255,255,0.45) 0%, rgba(255,255,255,0.15) 20%,
        rgba(255,255,255,0) 40%, rgba(255,255,255,0) 60%,
        rgba(255,255,255,0.15) 80%, rgba(255,255,255,0.45) 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

/* ============================================
   Hero Section Container
   ============================================ */
.lumora-hero {
    position: relative;
    width: 100%;
    min-height: 100vh;
    overflow: visible;
    background: #000;
}

/* 视频层固定在顶部 */
.video-layer,
.frosted-overlay,
.png-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    pointer-events: none;
}

.video-layer {
    z-index: 0;
}

.png-overlay {
    z-index: 1;
}

.frosted-overlay {
    z-index: 1;
}

/* ============================================
   Background Video Layer
   ============================================ */
.video-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1000ms ease-in-out;
    z-index: 0;
    background: #1a1a2e; /* 备用背景色，防止视频加载失败时全�?*/
}

.video-layer.active {
    opacity: 1;
}

.video-layer video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.video-label {
    position: absolute;
    bottom: 24px;
    right: 24px;
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.6);
    z-index: 1;
}

/* ============================================
   PNG Overlay with Train-Bob Animation
   ============================================ */
.png-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    pointer-events: none;
    animation: train-bob 3s ease-in-out infinite;
    transform: scale(1.03);
}

@keyframes train-bob {
    0%, 100% { transform: scale(1.03) translateY(0); }
    50% { transform: scale(1.03) translateY(-6px); }
}

/* ============================================
   Frosted Glass Overlay (over video, under content)
   ============================================ */
.frosted-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    background: rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(6px) saturate(1.2);
    -webkit-backdrop-filter: blur(6px) saturate(1.2);
}

/* ============================================
   Content Layer
   ============================================ */
.content-layer {
    position: relative;
    z-index: 2;
    display: block;
    min-height: 100vh;
    padding: 24px 32px;
}

/* ============================================
   Navigation
   ============================================ */
.hero-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.logo {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-style: normal;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 60%;
    position: relative;
    display: inline-block;
    /* ShinyText gradient applied to text itself */
    background-image: linear-gradient(
        120deg,
        #b5b5b5 0%,
        #b5b5b5 35%,
        #ffffff 50%,
        #b5b5b5 65%,
        #b5b5b5 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shiny-text-sweep 2s ease-in-out infinite;
}

@keyframes shiny-text-sweep {
    0% {
        background-position: 150% center;
    }
    100% {
        background-position: -50% center;
    }
}

/* Pause on hover */
.shiny-text:hover {
    animation-play-state: paused;
}

.nav-pill {
    display: none;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 9999px;
}

@media (min-width: 768px) {
    .nav-pill { display: flex; }
}

.nav-pill a {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 6px;
    transition: color 0.2s;
}

.nav-pill a:hover {
    color: #fff;
}

.nav-cta {
    background: #fff !important;
    color: #000 !important;
    font-weight: 600;
    padding: 8px 20px !important;
    border-radius: 9999px !important;
}

/* Hamburger Button */
.hamburger-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    cursor: pointer;
    position: relative;
}

@media (min-width: 768px) {
    .hamburger-btn { display: none; }
}

.icon-menu, .icon-close {
    position: absolute;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.icon-menu {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

.icon-close {
    opacity: 0;
    transform: rotate(-90deg) scale(0.75);
}

.hamburger-btn.open .icon-menu {
    opacity: 0;
    transform: rotate(90deg) scale(0.75);
}

.hamburger-btn.open .icon-close {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

/* 菜单标签 */
.menu-label {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.6rem;
    color: rgba(255, 255, 255, 0.6);
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.hamburger-btn:hover .menu-label,
.hamburger-btn:active .menu-label {
    opacity: 1;
}

/* 移动端始终显示标�?*/
@media (max-width: 767px) {
    .menu-label {
        opacity: 1;
        bottom: -18px;
        font-size: 0.55rem;
    }
}

/* ============================================
   Mobile Menu Overlay
   ============================================ */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 500ms cubic-bezier(0.4, 0, 0.2, 1), visibility 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu-overlay.open {
    opacity: 1;
    visibility: visible;
}

.mobile-menu-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.mobile-link {
    font-family: 'Instrument Serif', serif;
    font-size: 1.875rem;
    color: #fff;
    text-decoration: none;
    opacity: 0;
    transform: translateY(1rem);
    transition: opacity 500ms cubic-bezier(0.4, 0, 0.2, 1), transform 500ms cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: var(--delay, 0ms);
}

.mobile-menu-overlay.open .mobile-link {
    opacity: 1;
    transform: translateY(0);
}

.mobile-cta {
    display: inline-block;
    margin-top: 16px;
    padding: 14px 32px;
    border-radius: 9999px;
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    text-decoration: none;
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 500ms cubic-bezier(0.4, 0, 0.2, 1), transform 500ms cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: var(--delay, 0ms);
}

.mobile-menu-overlay.open .mobile-cta {
    opacity: 1;
    transform: scale(1);
}

/* ============================================
   Hero Content (Centered)
   ============================================ */
.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 16px;
    padding: 20px 0;
    min-height: calc(100vh - 100px);
    transition: color 700ms ease;
}

.hero-content.dark-mode {
    color: #182C41;
}

.hero-content.dark-mode .badge,
.hero-content.dark-mode .email-input-wrapper {
    color: #182C41;
}

.hero-content.dark-mode .hero-heading,
.hero-content.dark-mode .hero-subtext {
    color: #182C41;
}

.hero-content.dark-mode .switch-btn {
    color: #182C41;
}

.hero-content.dark-mode .switch-btn:not(.active) {
    opacity: 0.5;
}

/* Badge */
.badge {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.75rem;
    padding: 8px 20px;
    border-radius: 9999px;
    white-space: nowrap;
    color: rgba(255, 255, 255, 0.9);
    transition: color 700ms ease;
}

/* Heading */
.hero-heading {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-style: normal;
    font-size: 2.25rem;
    line-height: 1.1;
    max-width: 4xl;
    color: #fff;
    transition: color 700ms ease;
}

@media (min-width: 640px) { .hero-heading { font-size: 3rem; } }
@media (min-width: 768px) { .hero-heading { font-size: 4.5rem; } }
@media (min-width: 1024px) { .hero-heading { font-size: 5.5rem; } }

/* Subtext */
.hero-subtext {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.95rem;
    line-height: 1.7;
    max-width: 36rem;
    color: rgba(255, 255, 255, 0.85);
    transition: color 700ms ease;
}

/* Email Input */
.email-input-wrapper {
    display: flex;
    align-items: center;
    padding: 6px 6px 6px 20px;
    border-radius: 9999px;
    max-width: 20rem;
    width: 100%;
    margin: 0 auto;
    transition: color 700ms ease;
}

@media (min-width: 640px) {
    .email-input-wrapper { max-width: 24rem; }
}

/* Enroll button standalone (no wrapper) */
.enroll-btn {
    display: inline-block;
    padding: 14px 40px;
    background: #fff;
    color: #000;
    border-radius: 9999px;
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 8px;
}

.enroll-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.2);
}

.email-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.875rem;
    color: #fff;
    min-width: 0;
}

.email-input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.email-cta {
    background: #fff;
    color: #000;
    border: none;
    padding: 10px 20px;
    border-radius: 9999px;
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: transform 0.2s;
}

.email-cta:hover {
    transform: scale(1.05);
}

/* Video Switcher */
.video-switcher {
    display: flex;
    gap: 24px;
    margin-top: 8px;
}

.switch-btn {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.8rem;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: #fff;
    cursor: pointer;
    padding: 4px 0;
    transition: all 0.3s ease, color 700ms ease;
}

.switch-btn.active {
    border-bottom-color: #fff;
    opacity: 1;
}

.switch-btn:not(.active) {
    opacity: 0.5;
}

.switch-btn:hover:not(.active) {
    opacity: 0.8;
}

/* ============================================
   Fold Text Animation (3D fold unfold)
   ============================================ */
.fold-text-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    margin: 0 auto 20px;
    perspective: 700px;
    width: 100%;
}

.fold-text-line {
    display: flex;
    justify-content: center;
    flex-wrap: nowrap;
    line-height: 1.2;
    width: 100%;
}

.fold-char {
    display: inline-block;
    font-family: 'Noto Sans SC', 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', sans-serif;
    font-size: clamp(3rem, 12vw, 7rem);
    font-weight: 800;
    letter-spacing: -4px;
    color: #ffffff;
    transform-origin: top center;
    transform: rotateX(-90deg) scaleY(0);
    opacity: 0;
    /* Crease shading effect */
    text-shadow: 0 1px 0 rgba(0, 0, 0, 0.55);
    will-change: transform, opacity;
}

/* 缩小第二、三行文�?*/
.fold-char-small {
    font-size: clamp(1.8rem, 6vw, 3.5rem) !important;
    letter-spacing: -2px;
}

/* Responsive sizing */
@media (max-width: 768px) {
    .fold-char {
        letter-spacing: -2px;
    }
}

@media (max-width: 480px) {
    .fold-char {
        letter-spacing: -1px;
    }
}

/* ============================================
   Bottom Stats
   ============================================ */
.bottom-stats {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding-top: 24px;
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
}

@media (min-width: 640px) {
    .bottom-stats { font-size: 0.875rem; }
}

.stat-divider {
    display: none;
}

@media (min-width: 640px) {
    .stat-divider { display: inline; }
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 767px) {
    .content-layer {
        padding: 16px 20px;
    }

    .hero-nav {
        flex-wrap: wrap;
        gap: 12px;
    }

    .logo {
        font-size: 0.85rem;
        max-width: 100%;
        text-align: center;
        width: 100%;
    }

    .nav-pill {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 8px;
    }

    .nav-pill a {
        font-size: 0.8rem;
        padding: 6px 10px;
    }

    .hamburger-btn {
        width: 40px;
        height: 40px;
    }

    .video-switcher {
        gap: 12px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .switch-btn {
        font-size: 0.75rem;
        padding: 4px 8px;
    }

    .bottom-stats {
        flex-wrap: wrap;
        gap: 8px 12px;
        padding-top: 16px;
    }

    .bottom-stats p {
        font-size: 0.7rem;
        line-height: 1.7;
    }

    /* Fold Text 移动端优�?*/
    .fold-text-wrapper {
        gap: 6px;
    }

    .fold-char {
        letter-spacing: -2px;
    }

    .fold-char-small {
        letter-spacing: -1px;
    }

    /* Badge 移动端优�?*/
    .badge {
        font-size: 0.7rem;
        padding: 6px 16px;
    }

    /* 报名按钮移动端优�?*/
    .enroll-btn {
        padding: 12px 32px;
        font-size: 0.85rem;
    }
}

/* 小屏幕手机优�?*/
@media (max-width: 480px) {
    .content-layer {
        padding: 10px 14px;
    }

    /* 顶部导航栏优�?*/
    .hero-nav {
        padding: 8px 0;
    }

    .logo {
        font-size: 0.7rem;
        max-width: 60%;
    }

    .hamburger-btn {
        width: 36px;
        height: 36px;
    }

    .icon-menu, .icon-close {
        width: 18px;
        height: 18px;
    }

    /* Badge 标语缩小 */
    .badge {
        font-size: 0.6rem;
        padding: 5px 12px;
        margin-bottom: 8px;
    }

    /* 主标题文字缩�?*/
    .fold-char {
        font-size: clamp(2rem, 9vw, 4rem);
        letter-spacing: -1px;
    }

    .fold-char-small {
        font-size: clamp(1.2rem, 4.5vw, 2.2rem);
        letter-spacing: -0.3px;
    }

    .fold-text-wrapper {
        gap: 4px;
        margin-bottom: 12px;
    }

    /* 报名按钮优化 */
    .enroll-btn {
        padding: 10px 28px;
        font-size: 0.8rem;
        margin-bottom: 12px;
    }

    /* 选项卡变得更显眼 */
    .video-switcher {
        gap: 6px;
        background: rgba(255, 255, 255, 0.05);
        padding: 6px;
        border-radius: 9999px;
        margin-bottom: 12px;
    }

    .switch-btn {
        font-size: 0.75rem;
        padding: 6px 12px;
        border-radius: 9999px;
        border-bottom: none;
        opacity: 0.6;
        transition: all 0.3s ease;
    }

    .switch-btn.active {
        background: rgba(255, 255, 255, 0.15);
        border-bottom: none;
        opacity: 1;
        font-weight: 600;
    }

    .switch-btn:not(.active):hover {
        opacity: 0.8;
    }

    /* 底部描述文字缩小 */
    .bottom-stats {
        padding-top: 12px;
    }

    .bottom-stats p {
        font-size: 0.6rem;
        line-height: 1.5;
        color: rgba(255, 255, 255, 0.4);
    }

    /* 背景视频优化 - 压缩播放 */
    .video-layer video {
        object-fit: cover;
        filter: brightness(0.7);
    }

    .frosted-overlay {
        background: rgba(0, 0, 0, 0.35);
        backdrop-filter: blur(4px) saturate(1.1);
        -webkit-backdrop-filter: blur(4px) saturate(1.1);
    }
}

/* ============================================
   隐藏原始模板的多余区�?
   （How It Works, Features, Experience, Pricing, Community, Get Started�?
   ============================================ */
#how-it-works,
#features,
#experience,
#pricing,
#community,
#get-started,
.site-footer,
.back-to-top {
    display: none !important;
}

/* ============================================
   移动端响应式适配（竖�?+ 横屏�?
   ============================================ */
@media (max-width: 767px) {
    /* 基础设置 */
    html, body {
        overflow-x: hidden;
        overflow-y: auto;
        height: auto;
        min-height: 100%;
        -webkit-overflow-scrolling: touch;
    }
    
    /* Hero区域 */
    .lumora-hero {
        min-height: 100vh;
        height: auto;
        overflow: visible;
    }
    
    .content-layer {
        padding: 20px 14px 10px; /* 顶部增加内边距，让整体下�?*/
        min-height: 100vh;
        height: auto;
    }
    
    /* 导航�?*/
    .hero-nav {
        flex-wrap: wrap;
        gap: 6px;
        padding: 4px 0 8px; /* 底部增加间距 */
    }
    
    .logo {
        font-size: 0.65rem;
        max-width: 70%;
        white-space: nowrap;
    }
    
    .hamburger-btn {
        width: 34px;
        height: 34px;
    }
    
    .icon-menu, .icon-close {
        width: 16px;
        height: 16px;
    }
    
    /* 主标题区�?*/
    .hero-content {
        gap: 0;
        padding: 0;
        min-height: 100vh; /* 占满全屏高度 */
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: space-between; /* 上下分布 */
        align-items: center;
    }
    
    /* 上半部分：导航栏后的空白区域 */
    .hero-content > .hero-nav {
        margin-bottom: auto; /* 推到顶部 */
    }
    
    /* Badge标语 - 显著缩小 */
    .badge {
        font-size: 0.48rem;
        padding: 3px 8px;
        margin-bottom: 4px;
        line-height: 1.4;
    }
    
    /* 折叠文字 - 黄色主标题缩�?*/
    .fold-text-wrapper {
        gap: 2px;
        margin-bottom: 0;
    }
    
    .fold-char {
        font-size: clamp(1.4rem, 6vw, 2.8rem); /* 进一步缩�?*/
        letter-spacing: -1px;
    }
    
    .fold-char-small {
        font-size: clamp(0.85rem, 3.2vw, 1.6rem); /* 进一步缩�?*/
        letter-spacing: -0.5px;
    }
    
    /* 中间区域容器：标�?+ 报名按钮 + 视频切换�?*/
    .middle-section {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 10px;
        flex: 1;
        justify-content: flex-start; /* 改为靠上对齐 */
        padding-top: 15vh; /* 从顶部向�?5%视口高度，让内容位于红框位置 */
    }
    
    /* 报名按钮 */
    .enroll-btn {
        padding: 7px 20px;
        font-size: 0.7rem;
        margin-top: 12px;
        margin-bottom: 0;
    }
    
    /* 视频切换按钮 */
    .video-switcher {
        gap: 3px;
        background: rgba(255, 255, 255, 0.05);
        padding: 4px;
        border-radius: 9999px;
        margin-bottom: 0;
    }
    
    .switch-btn {
        font-size: 0.6rem;
        padding: 3px 6px;
        min-width: 40px;
        border-radius: 9999px;
        border-bottom: 2px solid transparent;
        opacity: 0.6;
        /* 清除所有选中/焦点残留 */
        outline: none !important;
        -webkit-tap-highlight-color: transparent !important;
        -webkit-touch-callout: none !important;
        user-select: none !important;
        -webkit-user-select: none !important;
    }
    
    .switch-btn:focus,
    .switch-btn:focus-visible,
    .switch-btn:active {
        outline: none !important;
        box-shadow: none !important;
        -webkit-tap-highlight-color: transparent !important;
    }
    
    .switch-btn.active {
        background: rgba(255, 255, 255, 0.15);
        border-bottom-color: #fff;
        opacity: 1;
        font-weight: 600;
    }
    
    /* 底部描述文字 - 固定在屏幕底部但上移 */
    .bottom-stats {
        position: fixed;
        bottom: 8vh; /* 从底部向上偏�?%视口高度 */
        left: 0;
        right: 0;
        padding: 8px 14px 12px;
        background: transparent; /* 移除渐变背景，避免黑�?*/
        z-index: 10;
    }
    
    .bottom-stats p {
        font-size: 0.42rem;
        line-height: 1.45;
        color: rgba(255, 255, 255, 0.35);
        letter-spacing: 0.15px;
        text-align: center;
        max-width: 700px;
        margin: 0 auto;
        /* 添加文字阴影增强可读�?*/
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8), 0 0 10px rgba(0, 0, 0, 0.5);
    }
    
    /* 移动端导航链接 - 垂直排列在视频切换器下方，带边缘发光效果 */
    .nav-links-mobile {
        display: flex;
        flex-direction: column;
        gap: 12px;
        margin-top: 16px;
        width: 100%;
        max-width: 280px;
    }
    
    .nav-link-item {
        position: relative;
        display: block;
        padding: 10px 20px;
        background: rgba(18, 15, 23, 0.3); /* 更透明的背景 */
        border: 1px solid rgba(192, 132, 252, 0.2);
        border-radius: 28px;
        color: rgba(255, 255, 255, 0.75);
        text-decoration: none;
        font-size: 0.75rem;
        text-align: center;
        transition: all 0.3s ease;
        overflow: hidden;
        backdrop-filter: blur(8px); /* 增强毛玻璃效果 */
        -webkit-backdrop-filter: blur(8px);
        /* 边缘发光效果 */
        box-shadow: 
            0 0 12px rgba(192, 132, 252, 0.1),
            0 0 24px rgba(244, 114, 182, 0.06),
            inset 0 0 12px rgba(56, 189, 248, 0.03);
    }
    
    /* 渐变边框发光层 */
    .nav-link-item::before {
        content: '';
        position: absolute;
        inset: -2px;
        border-radius: 30px;
        background: linear-gradient(
            135deg,
            rgba(192, 132, 252, 0.3) 0%,
            rgba(244, 114, 182, 0.2) 50%,
            rgba(56, 189, 248, 0.3) 100%
        );
        z-index: -1;
        opacity: 0.4;
        filter: blur(8px);
        transition: opacity 0.3s ease;
    }
    
    /* 内部高光层 */
    .nav-link-item::after {
        content: '';
        position: absolute;
        inset: 0;
        border-radius: 28px;
        background: linear-gradient(
            135deg,
            rgba(192, 132, 252, 0.05) 0%,
            transparent 50%,
            rgba(56, 189, 248, 0.05) 100%
        );
        pointer-events: none;
    }
    
    .nav-link-item:hover,
    .nav-link-item:active {
        background: rgba(18, 15, 23, 0.5);
        border-color: rgba(192, 132, 252, 0.4);
        color: #fff;
        box-shadow: 
            0 0 18px rgba(192, 132, 252, 0.2),
            0 0 36px rgba(244, 114, 182, 0.1),
            inset 0 0 18px rgba(56, 189, 248, 0.06);
    }
    
    .nav-link-item:hover::before,
    .nav-link-item:active::before {
        opacity: 0.7;
        filter: blur(10px);
    }
    
    /* 视频标签 */
    .video-label {
        font-size: 7px;
        bottom: 6px;
        right: 6px;
    }
    
    /* 磨砂遮罩 */
    .frosted-overlay {
        background: rgba(0, 0, 0, 0.3);
        backdrop-filter: blur(3px) saturate(1.1);
        -webkit-backdrop-filter: blur(3px) saturate(1.1);
    }
    
    /* 视频层高�?*/
    .video-layer,
    .frosted-overlay,
    .png-overlay {
        height: 100vh;
    }
}

/* 横屏手机优化 */
@media (max-width: 767px) and (orientation: landscape) {
    .content-layer {
        padding: 16px 18px 10px; /* 顶部增加内边�?*/
    }
    
    .logo {
        font-size: 0.75rem;
        max-width: 55%;
    }
    
    .badge {
        font-size: 0.5rem;
        padding: 4px 10px;
    }
    
    .fold-char {
        font-size: clamp(1.6rem, 4vw, 3rem); /* 横屏也缩�?*/
    }
    
    .fold-char-small {
        font-size: clamp(0.9rem, 2.5vw, 2rem); /* 横屏也缩�?*/
    }
    
    .enroll-btn {
        padding: 8px 24px;
        font-size: 0.75rem;
    }
    
    .switch-btn {
        font-size: 0.65rem;
        padding: 4px 8px;
    }
    
    .bottom-stats p {
        font-size: 0.5rem; /* 横屏也缩�?*/
    }
    
    .video-layer,
    .frosted-overlay,
    .png-overlay {
        height: 100vh;
    }
}

.section-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.section-label {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.5);
    display: block;
    margin-bottom: 16px;
}

.section-heading {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-style: normal;
    font-size: 2.5rem;
    line-height: 1.2;
    color: #fff;
    margin-bottom: 16px;
}

@media (min-width: 768px) {
    .section-heading { font-size: 3.5rem; }
}

.section-subtext {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 1.05rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin-bottom: 60px;
}

/* Steps Grid */
.steps-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .steps-grid { grid-template-columns: repeat(3, 1fr); }
}

.step-card {
    padding: 40px 32px;
    border-radius: 20px;
}

.step-number {
    font-family: 'Instrument Serif', serif;
    font-style: normal;
    font-size: 3rem;
    color: rgba(255, 255, 255, 0.15);
    margin-bottom: 16px;
}

.step-card h3 {
    font-family: 'Instrument Serif', serif;
    font-style: normal;
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 12px;
}

.step-card p {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.95rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.7);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

@media (min-width: 640px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .features-grid { grid-template-columns: repeat(3, 1fr); }
}

.feature-item {
    padding: 8px 0;
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.feature-item h3 {
    font-family: 'Instrument Serif', serif;
    font-style: normal;
    font-size: 1.25rem;
    color: #fff;
    margin-bottom: 8px;
}

.feature-item p {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.9rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.65);
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    align-items: start;
}

@media (min-width: 768px) {
    .pricing-grid { grid-template-columns: repeat(3, 1fr); }
}

.pricing-card {
    padding: 40px 32px;
    border-radius: 20px;
    position: relative;
}

.pricing-card.featured {
    background: rgba(255, 255, 255, 0.04);
    transform: scale(1.02);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: #fff;
    color: #000;
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.pricing-tier {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 8px;
}

.pricing-price {
    font-family: 'Instrument Serif', serif;
    font-style: normal;
    font-size: 3rem;
    color: #fff;
    margin-bottom: 24px;
}

.pricing-price span {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 400;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    padding: 8px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-btn {
    width: 100%;
    padding: 14px 24px;
    border-radius: 9999px;
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
    border: none;
}

.pricing-btn:hover {
    transform: scale(1.03);
}

.pricing-btn.primary {
    background: #fff;
    color: #000;
}

/* Testimonials Grid */
.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 60px;
}

@media (min-width: 768px) {
    .testimonials-grid { grid-template-columns: repeat(3, 1fr); }
}

.testimonial-card {
    padding: 32px;
    border-radius: 20px;
}

.testimonial-text {
    font-family: 'Instrument Serif', serif;
    font-style: normal;
    font-size: 1.1rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
}

.author-name {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
}

.author-role {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
}

.community-cta-wrapper {
    text-align: center;
}

.community-cta-text {
    font-family: 'Instrument Serif', serif;
    font-style: normal;
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 20px;
}

.community-cta-btn {
    display: inline-block;
    padding: 16px 40px;
    border-radius: 9999px;
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: #fff;
    text-decoration: none;
    transition: transform 0.2s;
}

.community-cta-btn:hover {
    transform: scale(1.05);
}

/* Footer */
.site-footer {
    background: #050505;
    padding: 80px 32px 40px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-brand {
    margin-bottom: 60px;
}

.footer-logo {
    font-family: 'Instrument Serif', serif;
    font-style: normal;
    font-size: 1.75rem;
    color: #fff;
    text-decoration: none;
    display: block;
    margin-bottom: 8px;
}

.footer-brand p {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

@media (min-width: 768px) {
    .footer-links { grid-template-columns: repeat(3, 1fr); }
}

.footer-col h4 {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    padding: 4px 0;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 24px;
}

.footer-bottom p {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.3);
}

/* Responsive for page sections */
@media (max-width: 767px) {
    .page-section {
        padding: 60px 20px;
    }

    .section-heading {
        font-size: 2rem;
    }

    .section-subtext {
        font-size: 0.95rem;
        margin-bottom: 40px;
    }

    .step-card,
    .pricing-card,
    .testimonial-card {
        padding: 28px 24px;
    }

    .site-footer {
        padding: 60px 20px 30px;
    }
}

/* ============================================
   Page 4: Immersive Experience
   ============================================ */
.experience-section {
    background: #0a0a0a;
}

.experience-showcase {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

@media (min-width: 768px) {
    .experience-showcase {
        grid-template-columns: 1.5fr 1fr;
        gap: 48px;
    }
}

.experience-video-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.experience-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.experience-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.3);
    transition: opacity 0.3s;
}

.experience-video-wrapper:hover .experience-overlay {
    opacity: 0;
}

.play-indicator {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    margin-bottom: 12px;
}

.experience-label {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 1px;
}

.experience-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.detail-item {
    padding: 24px;
    border-radius: 16px;
    text-align: center;
}

.detail-value {
    font-family: 'Instrument Serif', serif;
    font-style: normal;
    font-size: 2rem;
    color: #fff;
    margin-bottom: 4px;
}

.detail-label {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================
   Page 7: Get Started + FAQ
   ============================================ */
.get-started-section {
    background: #0a0a0a;
}

.final-cta-wrapper {
    text-align: center;
    margin-bottom: 80px;
}

.email-input-wrapper.large {
    max-width: 28rem;
    margin: 0 auto 16px;
    padding: 8px 8px 8px 24px;
}

.email-cta.large {
    padding: 12px 24px;
    font-size: 0.9rem;
}

.cta-note {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
}

.faq-section {
    max-width: 800px;
    margin: 0 auto;
}

.faq-heading {
    font-family: 'Instrument Serif', serif;
    font-style: normal;
    font-size: 2rem;
    color: #fff;
    margin-bottom: 32px;
    text-align: center;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    border-radius: 16px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
}

.faq-question span {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.95rem;
    font-weight: 500;
    color: #fff;
}

.faq-chevron {
    flex-shrink: 0;
    color: rgba(255, 255, 255, 0.5);
    transition: transform 0.3s ease;
}

.faq-item.open .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
    max-height: 200px;
    padding: 0 24px 20px;
}

.faq-answer p {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', system-ui, sans-serif;
    font-size: 0.9rem;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive for experience & FAQ */
@media (max-width: 767px) {
    .experience-details {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .detail-item {
        padding: 16px;
    }

    .detail-value {
        font-size: 1.5rem;
    }

    .faq-heading {
        font-size: 1.5rem;
    }

    .faq-question {
        padding: 16px 20px;
    }

    .faq-question span {
        font-size: 0.9rem;
    }

    .faq-item.open .faq-answer {
        padding: 0 20px 16px;
    }
}

/* ============================================
   Back to Top Button
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.4s ease, visibility 0.4s ease, transform 0.4s ease;
    border: none;
    color: #fff;
}

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

.back-to-top:hover {
    transform: translateY(-3px);
}

@media (max-width: 767px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}