/* ==========================================
   CSS 变量配置
   ========================================== */
:root {
    /* 颜色系统 */
    --color-black: #000000;
    --color-white: #ffffff;
    --color-gray-light: #cccccc;
    --color-gray-medium: #888888;
    --color-gray-dark: #333333;

    /* 字体系统 - 移除 Google Fonts，使用系统默认字体栈 */
    --font-primary: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 16px;
    --font-size-large: 1.25rem;
    --font-size-xlarge: 2rem;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;

    /* 过渡时长 */
    --transition-fast: 0.3s;
    --transition-medium: 0.4s;
    --transition-slow: 0.6s;
    --transition-ease: ease-in-out;

    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
}

/* ==========================================
   全局重置与基础样式
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--color-black);
    color: var(--color-white);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ==========================================
   粒子特效画布
   ========================================== */
.particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    /* 不阻挡页面交互 */
    z-index: 1;
    /* 在背景之上，但在内容之下 */
    opacity: 0;
    transition: opacity 0.8s ease;
}

.particle-canvas.active {
    opacity: 1;
}

/* 当项目页面激活时，隐藏粒子特效 */
.project-page.active~.particle-canvas {
    opacity: 0 !important;
    visibility: hidden;
}

/* ==========================================
   Loading 页面样式
   ========================================== */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-black);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    visibility: visible;
    transition: opacity var(--transition-slow) var(--transition-ease),
        visibility 0s var(--transition-slow);
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.enter-button {
    color: var(--color-white);
    font-size: var(--font-size-large);
    font-weight: var(--font-weight-light);
    letter-spacing: 0.2em;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-white);
    background-color: transparent;
    transition: all var(--transition-fast) var(--transition-ease);
}

.enter-button:hover {
    background-color: var(--color-white);
    color: var(--color-black);
    transform: scale(1.05);
}

/* ==========================================
   首页 - 暗黑模式
   ========================================== */
.home-page {
    position: relative;
    min-height: 100vh;
    display: flex;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow) var(--transition-ease);
}

.home-page.active {
    opacity: 1;
    visibility: visible;
}

/* 左侧：视频与设计宣言 */
.home-left {
    width: 100vw;
    /* 默认全屏宽度 */
    height: 100vh;
    position: relative;
    display: flex;
    /* 保持 flex 用于内部居中 */
    flex-direction: column;
    justify-content: center;
    /* 垂直居中 */
    align-items: center;
    padding: var(--spacing-xl);
    background-color: var(--color-black);
    gap: var(--spacing-lg);
    /* 视频和文字的间距 */
    transition: width 0.5s cubic-bezier(0.77, 0, 0.175, 1);
    /* 添加宽度过渡动画，与菜单一致 */
}

/* 当菜单打开时，左侧宽度收缩为 70% */
.home-page.menu-active .home-left {
    width: 70vw;
}

.video-container {
    position: relative;
    /* 改为相对定位 */
    width: 80%;
    /* 限制宽度以匹配设计感 */
    max-width: 600px;
    /* aspect-ratio: 16 / 9; */
    height: auto;
    overflow: visible;
    /* 允许视频自适应 */
    flex-shrink: 0;
    z-index: 10;
    /* 确保视频在粒子特效之上 */
}

.bg-video {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    /* 确保不裁剪 */
    opacity: 1;
    /* 取消透明度 */
    position: relative;
    z-index: 10;
    /* 确保视频在粒子特效之上 */
    border-radius: 12px;
    /* 增加圆角 */

    /* 增强多层阴影效果 */
    box-shadow:
        0 0 80px rgba(0, 0, 0, 0.8),
        0 0 160px rgba(0, 0, 0, 0.6),
        0 0 240px rgba(0, 0, 0, 0.4),
        inset 0 0 60px rgba(0, 0, 0, 0.3),
        0 0 40px rgba(255, 220, 150, 0.2);
    /* 外层深阴影 + 大范围扩散 + 超大范围氛围 + 内阴影 + 淡金色发光 */

    /* 增强渐变遮罩，从50%开始淡出 */
    -webkit-mask-image: radial-gradient(ellipse 100% 100% at center,
            rgba(0, 0, 0, 1) 40%,
            rgba(0, 0, 0, 0.9) 50%,
            rgba(0, 0, 0, 0.7) 65%,
            rgba(0, 0, 0, 0.4) 80%,
            rgba(0, 0, 0, 0) 95%);
    mask-image: radial-gradient(ellipse 100% 100% at center,
            rgba(0, 0, 0, 1) 40%,
            rgba(0, 0, 0, 0.9) 50%,
            rgba(0, 0, 0, 0.7) 65%,
            rgba(0, 0, 0, 0.4) 80%,
            rgba(0, 0, 0, 0) 95%);
}

.design-manifesto {
    position: relative;
    z-index: 10;
    /* 确保文字在粒子特效之上 */
    max-width: 600px;
    text-align: center;
    /* 文字居中 */
    margin-top: 0;
}

.manifesto-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    font-style: italic;
    /* 斜体 */
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
    letter-spacing: 0.05em;
}

.manifesto-text {
    font-size: 1rem;
    font-weight: var(--font-weight-light);
    color: var(--color-white);
    line-height: 1.6;
}

.manifesto-text strong {
    font-weight: var(--font-weight-bold);
}

.personal-info {
    position: absolute;
    bottom: var(--spacing-md);
    /* 向下移一点 */
    left: var(--spacing-xl);
    /* 向右移一点 */
    text-align: left;
    color: var(--color-white);
    font-style: italic;
    font-size: 0.8rem;
    /* 字号再小一点 */
    line-height: 1.5;
    z-index: 10;
}

.personal-info p {
    margin: 0;
    font-weight: var(--font-weight-light);
    /* 不加粗 */
}

/* 菜单切换按钮 */
.menu-toggle {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    z-index: 1000;
    width: 40px;
    height: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    cursor: pointer;
    background: transparent;
    border: none;
    transition: all 0.3s ease;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--color-white);
    transition: all 0.3s ease;
}

/* 按钮激活状态（变成 X） */
.menu-toggle.active span:nth-child(1) {
    transform: translateY(14px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-14px) rotate(-45deg);
}

/* 语言切换按钮 */
.lang-toggle {
    position: fixed;
    top: var(--spacing-md);
    right: calc(var(--spacing-md) + 60px);
    /* 在菜单按钮左侧 */
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.5rem 0.8rem;
    background: transparent;
    border: 1px solid var(--color-white);
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-white);
    transition: all var(--transition-fast) var(--transition-ease);
}

.lang-toggle:hover {
    background-color: var(--color-white);
    color: var(--color-black);
}

.lang-option {
    opacity: 0.5;
    transition: opacity var(--transition-fast) var(--transition-ease);
    cursor: pointer;
}

.lang-option.active {
    opacity: 1;
    font-weight: var(--font-weight-bold);
}

.lang-divider {
    opacity: 0.5;
    user-select: none;
}

.lang-toggle:hover .lang-option {
    opacity: 0.8;
}

.lang-toggle:hover .lang-option.active {
    opacity: 1;
}

/* 右侧：项目导航菜单 - 默认隐藏/移出 */
.home-right {
    position: fixed;
    /* 不再占据文档流，改为 fixed 抽屉 */
    top: 0;
    right: 0;
    width: 30%;
    /* 占比 30% */
    min-width: 350px;
    height: 100vh;
    background-color: var(--color-black);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    border-left: 1px solid var(--color-gray-dark);
    transform: translateX(100%);
    /* 默认移出屏幕 */
    transition: transform 0.5s cubic-bezier(0.77, 0, 0.175, 1);
    z-index: 900;
}

.home-right.active {
    transform: translateX(0);
    /* 激活时滑入 */
}

/* 导航相关样式微调 */
.project-nav {
    width: 100%;
}

.nav-title {
    font-size: var(--font-size-xlarge);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    color: var(--color-white);
}

.nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.nav-item {
    transition: transform var(--transition-fast) var(--transition-ease);
}

.nav-link {
    display: grid;
    grid-template-columns: 2.5rem 1fr;
    /* 序号宽度 + 内容 */
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    /* 减少左右 padding 以对齐 */
    font-size: var(--font-size-large);
    color: var(--color-white);
    /* 默认为白色 */
    transition: all var(--transition-fast) var(--transition-ease);
    border-left: none;
    /* 移除原来的左边框 */
    text-decoration: none;
    align-items: baseline;
}

.nav-link:hover {
    color: var(--color-white);
    transform: translateX(10px);
    /* 向右移动而不是缩放 */
    /* border-left-color: var(--color-white); */
}

.project-number {
    /* font-family: 'Roboto', sans-serif; */
    /* 使用更机械的字体 */
    font-weight: var(--font-weight-light);
    font-size: 1.1rem;
    color: var(--color-white);
    font-style: italic;
}

.project-info {
    display: flex;
    flex-direction: column;
}

.project-name {
    font-weight: var(--font-weight-bold);
    font-size: 1.1rem;
    font-style: italic;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.2rem;
}

.project-subtitle {
    font-size: 0.85rem;
    font-weight: var(--font-weight-light);
    color: var(--color-gray-light);
    font-style: italic;
    line-height: 1.3;
}

.nav-item-other {
    margin-top: var(--spacing-lg);
    /* 增加间距 */
    padding-top: var(--spacing-sm);
    border-top: none;
    /* 移除分割线 */
}

/* ==========================================
   项目详情页 - 纯白模式
   ========================================== */
.project-page {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-white);
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    /* 改为顶部对齐 */
    padding-top: 50px;
    /* 稍微减少顶部空间 */
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow) var(--transition-ease);
}

.project-page.active {
    opacity: 1;
    visibility: visible;
}

.back-button {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    font-size: var(--font-size-large);
    color: var(--color-black);
    padding: var(--spacing-xs) var(--spacing-sm);
    z-index: 200;
    transition: all var(--transition-fast) var(--transition-ease);
}

.back-button:hover {
    transform: translateX(-5px);
    opacity: 0.7;
}

/* ==========================================
   Swiper 3D Coverflow 样式
   ========================================== */
.swiper-container {
    width: 100%;
    max-width: 1600px;
    height: calc(100vh - 80px);
    /* 减去顶部间距 */
    padding-top: 1rem;
    padding-bottom: 2rem;
}

.swiper-slide {
    background-position: center;
    background-size: cover;
    width: auto;
    /* 宽度自适应 */
    max-width: 65%;
    /* 关键：限制最大宽度，给两侧留出空间 */
    height: 85%;
    /* 留出一些空间给阴影和倒影 */
    display: flex;
    justify-content: center;
    align-items: center;
    user-select: none;
    /* 防止拖拽时出现蓝色选中高亮 */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.swiper-slide img {
    display: block;
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    /* 关键：限制高度 */
    object-fit: contain;
    /* 基础边框，防止白底图与背景融为一体 */
    border: 1px solid rgba(0, 0, 0, 0.08);
    outline: none;
    transition: all 0.3s ease;
    /* 图片保护：禁用拖拽和选择 */
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    pointer-events: none;
    /* 禁止直接交互 */
    -webkit-user-drag: none;
    /* 禁止拖拽 */
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
}

/* 激活状态的图片：添加柔和的四周阴影（无偏移，不显厚度），使其浮起 */
.swiper-slide-active img {
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.1);
    border-color: rgba(0, 0, 0, 0.15);
    /* 稍微加深边框 */
}

/* 优化 Swiper 阴影 - 不要太黑 */
/* 既然用户不想要遮罩，这里也可以简化 */
/*
.swiper-slide-shadow-left,
.swiper-slide-shadow-right {
    opacity: 0 !important;
}
*/
.swiper-slide-shadow-left,
.swiper-slide-shadow-right {
    opacity: 0.3 !important;
    /* 强制减淡阴影，默认可能是 1 */
}

/* 非激活状态的 Slide 稍微透明一点，增加层次感，而不是单纯变黑 */
.swiper-slide:not(.swiper-slide-active) {
    opacity: 0.6;
    transition: opacity 0.3s;
}

.swiper-slide:not(.swiper-slide-active):hover {
    opacity: 0.9;
    /* 鼠标悬停时变亮 */
    cursor: pointer;
}

/* 初始状态下隐藏左侧图片（上一张） */
/* 默认隐藏所有 Slide */
.swiper-container.initial-state .swiper-slide {
    opacity: 0 !important;
    visibility: hidden;
    pointer-events: none;
}

/* 强制显示当前 Active Slide */
.swiper-container.initial-state .swiper-slide-active {
    opacity: 1 !important;
    visibility: visible;
    pointer-events: auto;
}

/* 强制显示 Active 之后的所有 Slide（即右侧可见） */
.swiper-container.initial-state .swiper-slide-active~.swiper-slide {
    opacity: 0.6 !important;
    /* 恢复默认非激活状态透明度 */
    visibility: visible;
    pointer-events: auto;
}

/* 针对 Hover 效果的特例处理（可选，确保右侧 Hover 仍有效） */
.swiper-container.initial-state .swiper-slide-active~.swiper-slide:hover {
    opacity: 0.9 !important;
}

/* 导航箭头 - 黑色反色 */
.swiper-button-prev,
.swiper-button-next {
    color: var(--color-black) !important;
    width: 44px !important;
    height: 44px !important;
}

.swiper-button-prev:hover,
.swiper-button-next:hover {
    opacity: 0.7;
}

/* 分页器 - 黑色反色 */
.swiper-pagination-bullet {
    background-color: var(--color-gray-medium) !important;
}

.swiper-pagination-bullet-active {
    background-color: var(--color-black) !important;
}

/* 键盘提示 */
.keyboard-hint {
    position: absolute;
    bottom: 0.5rem;
    /* 稍微靠底部 */
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.85rem;
    color: var(--color-gray-medium);
    font-weight: var(--font-weight-light);
    z-index: 50;
    /* 确保层级 */
}

/* 调整分页器位置，避免与文字重叠 */
.swiper-pagination {
    bottom: 2.5rem !important;
    /* 向上移动，位于文字上方 */
}

/* ==========================================
   黑白过渡层
   ========================================== */
.transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-black);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition-slow) var(--transition-ease);
}

.transition-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ==========================================
   图片加载指示器
   ========================================== */
.image-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 100;
    opacity: 1;
    transition: opacity 0.3s ease;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-top-color: #000;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.image-loader p {
    color: var(--color-gray-medium);
    font-size: 0.9rem;
    font-weight: var(--font-weight-light);
}

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

/* 平板 */
@media (max-width: 1024px) {
    .home-page {
        flex-direction: column;
    }

    .home-left {
        min-height: 60vh;
    }

    .home-right {
        width: 100%;
        border-left: none;
        border-top: 1px solid var(--color-gray-dark);
    }

    .swiper-container {
        width: 95%;
        height: 60vh;
    }

    .swiper-slide {
        width: 500px;
    }
}

/* 手机 */
@media (max-width: 768px) {
    :root {
        --font-size-base: 14px;
    }

    /* 首页左侧：改为可滚动的 flex 列，底部留出聊天按钮空间 */
    .home-left {
        padding: var(--spacing-md) var(--spacing-md) 90px var(--spacing-md);
        height: auto;
        min-height: 100vh;
        overflow-y: auto;
        justify-content: flex-start;
        padding-top: 80px;
    }

    /* 视频容器：宽度自适应，高度自动 */
    .video-container {
        width: 90%;
        height: auto;
        max-height: 40vh;
    }

    /* 宣言文字：字号稍小，减少占用空间 */
    .manifesto-title {
        font-size: 1.2rem;
        margin-bottom: var(--spacing-sm);
    }

    .manifesto-text {
        font-size: 0.85rem;
    }

    /* 底部个人信息：从绝对定位改为正常流，跟随内容排列 */
    .personal-info {
        position: relative;
        bottom: auto;
        left: auto;
        text-align: center;
        margin-top: var(--spacing-sm);
    }

    /* 目录菜单：全屏弹出，顶部对齐，底部留出聊天按钮空间 */
    .home-right {
        width: 100vw;
        min-width: unset;
        overflow-y: auto;
        /* 改为顶部对齐，让内容从上往下排，padding-bottom 才能生效 */
        align-items: flex-start;
        justify-content: flex-start;
        /* 增加顶部间距，让 Content 标题与语言切换按钮拉开距离 */
        padding-top: 80px;
        padding-bottom: 120px;
    }

    /* 导航内容居中显示 */
    .project-nav {
        width: 100%;
        padding: 0 var(--spacing-md);
    }

    /* 减少 Content 标题间距和字号 */
    .nav-title {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-lg);
    }

    /* 数字与标题顶部对齐 */
    .nav-link {
        font-size: 1rem;
        align-items: flex-start;
    }

    .project-number {
        font-size: 1.2rem;
        /* 微调上边距，与标题首行对齐 */
        padding-top: 0.1rem;
    }

    /* Other Work 与上方项目间距一致，不要额外大间距 */
    .nav-item-other {
        margin-top: 0;
        padding-top: 0;
    }

    /* 作品页：竖屏时全屏显示 */
    .project-page {
        padding-top: 60px;
    }

    /* 竖屏模式下的 Swiper 容器：全屏，overflow:hidden 裁掉第三张 */
    .swiper-container.mobile-vertical {
        width: 100%;
        height: calc(100vh - 60px);
        padding: 0;
        position: relative;
        overflow: hidden;
    }

    /* 竖屏模式下的 Slide：高度约为容器 70%，图片居中 */
    .swiper-container.mobile-vertical .swiper-slide {
        width: 100% !important;
        max-width: 100%;
        /* slidesPerView:1.4，每张约占容器 71% 高度 */
        height: calc((100vh - 60px) / 1.4) !important;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 !important;
    }

    /* 竖屏模式下的图片：填满 slide，保持比例 */
    .swiper-container.mobile-vertical .swiper-slide img {
        max-height: 100%;
        max-width: 100%;
        width: auto;
        height: auto;
        object-fit: contain;
        display: block;
    }

    /* 竖屏模式下：分页点覆盖在图片右侧 */
    .swiper-container.mobile-vertical .swiper-pagination {
        position: absolute;
        right: 8px;
        top: 50%;
        transform: translateY(-50%);
        left: auto;
        bottom: auto;
        width: auto;
        display: flex;
        flex-direction: column;
        gap: 6px;
        z-index: 10;
    }

    .swiper-container.mobile-vertical .swiper-pagination-bullet {
        margin: 0 !important;
        width: 6px;
        height: 6px;
    }

    /* 竖屏模式下：隐藏左右箭头 */
    .swiper-container.mobile-vertical~.swiper-button-prev,
    .swiper-container.mobile-vertical~.swiper-button-next {
        display: none !important;
    }

    /* 横屏模式（移动端）：图片更大，接近桶面端效果 */
    .swiper-container:not(.mobile-vertical) {
        width: 100%;
        height: 80vh;
        padding-top: var(--spacing-sm);
        padding-bottom: var(--spacing-sm);
    }

    .swiper-container:not(.mobile-vertical) .swiper-slide {
        width: 70vw;
        max-width: 70vw;
    }

    .swiper-button-prev,
    .swiper-button-next {
        display: none;
    }

    .keyboard-hint {
        display: none;
    }

    /* 减少项目列表间距，让 Other Work 不被遮挡 */
    .nav-list {
        gap: var(--spacing-sm);
    }
}

/* 移动端横屏：确保目录可以上下滚动，作品页接近桌面端效果 */
@media (max-width: 900px) and (orientation: landscape) {
    .home-right {
        overflow-y: auto;
        height: 100vh;
        align-items: flex-start;
        justify-content: flex-start;
        padding-top: 40px;
        padding-bottom: 80px;
    }

    .project-nav {
        width: 100%;
        padding: 0 var(--spacing-md);
    }

    /* 横屏时恢复左右导航箭头 */
    .swiper-button-prev,
    .swiper-button-next {
        display: flex;
    }

    /* 横屏时作品页：去掉顶部 padding，让 Swiper 占满全屏 */
    .project-page {
        padding-top: 0;
        justify-content: center;
    }

    /* 横屏 Swiper 容器：几乎全屏，只留底部给分页点 */
    .swiper-container:not(.mobile-vertical) {
        height: calc(100vh - 40px);
        padding-top: 0;
        padding-bottom: 0;
    }

    /* 横屏分页点：移到底部，不占图片空间 */
    .swiper-container:not(.mobile-vertical) .swiper-pagination {
        bottom: 4px !important;
    }

    /* 横屏 Back 按钮：固定在左上角 */
    .back-button {
        top: 8px;
        left: var(--spacing-md);
    }
}

/* 超小屏幕 */
@media (max-width: 480px) {
    .home-left {
        padding: var(--spacing-sm);
    }

    .home-right {
        padding: var(--spacing-sm);
    }

    .nav-list {
        gap: var(--spacing-sm);
    }

    .back-button {
        top: var(--spacing-sm);
        left: var(--spacing-sm);
        font-size: 1rem;
    }
}

/* ==========================================
   工具类
   ========================================== */
.hidden {
    display: none !important;
}

/* ==========================================
   Chat Widget 样式
   ========================================== */
.chat-widget {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9995;
    /* 在粒子之上，但在 Loading 之下 */
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    font-family: var(--font-primary);
}

.chat-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-black);
    border: 1px solid rgba(255, 220, 150, 0.3);
    /* 淡金色边框 */
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5), 0 0 10px rgba(255, 220, 150, 0.1);
    color: var(--color-white);
    font-size: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.chat-toggle:hover {
    transform: scale(1.1);
    border-color: rgba(255, 220, 150, 0.8);
    box-shadow: 0 0 25px rgba(255, 220, 150, 0.2);
}

.chat-hint {
    position: absolute;
    right: 80px;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--color-white);
    color: var(--color-black);
    padding: 10px 15px;
    border-radius: 20px;
    border-bottom-right-radius: 4px;
    font-size: 0.9rem;
    font-weight: var(--font-weight-medium);
    white-space: nowrap;
    opacity: 1;
    visibility: visible;
    transition: all 0.3s cubic-bezier(0.19, 1, 0.22, 1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    animation: hintBounce 3s infinite ease-in-out;
    pointer-events: none;
    /* 不阻挡点击 */
}

/* 聊天窗口打开或者按钮隐藏时，隐藏提示 */
.chat-toggle.hidden~.chat-hint {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-50%) translateX(20px);
}

@keyframes hintBounce {

    0%,
    100% {
        transform: translateY(-50%) translateX(0);
    }

    50% {
        transform: translateY(-50%) translateX(-5px);
    }
}

.chat-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 400px;
    /* 增大宽度 */
    height: 700px;
    /* 再次增大高度 */
    max-height: 80vh;
    /* 防止在小屏幕上溢出 */
    max-width: 90vw;
    /* 防止在极小屏幕上溢出 */
    background-color: rgba(10, 10, 10, 0.95);
    /* 深色背景 */
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 220, 150, 0.2);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 1;
    transform: translateY(0) scale(1);
    transition: all 0.3s cubic-bezier(0.19, 1, 0.22, 1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
}

.chat-window.hidden {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
}

.chat-header {
    padding: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.05);
}

.chat-title {
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    letter-spacing: 1px;
    font-size: 0.9rem;
}

.chat-close {
    color: var(--color-gray-medium);
    font-size: 24px;
    line-height: 1;
    padding: 0 5px;
}

.chat-close:hover {
    color: var(--color-white);
}

.chat-messages {
    flex: 1;
    padding: 15px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

/* 滚动条样式 */
.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

.message {
    max-width: 90%;
    /* 增加宽度以减少不必要的换行 */
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 0.9rem;
    line-height: 1.5;
    word-wrap: break-word;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.bot {
    align-self: flex-start;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border-bottom-left-radius: 2px;
}

.message.user {
    align-self: flex-end;
    background-color: rgba(255, 220, 150, 0.2);
    /* 淡金色背景 */
    border: 1px solid rgba(255, 220, 150, 0.3);
    color: var(--color-white);
    border-bottom-right-radius: 2px;
}

/* 快速回复建议 */
.quick-replies {
    padding: 10px 10px 15px;
    /* 稍微减少左右 padding */
    display: flex;
    gap: 5px;
    /* 减少间距 */
    flex-wrap: nowrap;
    /* 强制不换行 */
    justify-content: center;
    /* 居中对齐 */
    overflow-x: hidden;
    /* 隐藏滚动条 */
}

/* 移除滚动条样式 */
.quick-replies::-webkit-scrollbar {
    display: none;
}

.quick-reply-btn {
    white-space: nowrap;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    padding: 5px 8px;
    /* 减少按钮内边距 */
    border-radius: 15px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    flex-shrink: 0;
    /* 防止按钮被压缩变形 */
}

.quick-reply-btn:hover {
    background: rgba(255, 220, 150, 0.2);
    border-color: rgba(255, 220, 150, 0.4);
    transform: translateY(-2px);
}

/* 输入区域 */
.chat-input-area {
    padding: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    gap: 10px;
    background-color: rgba(0, 0, 0, 0.3);
}

#chat-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 8px 15px;
    color: var(--color-white);
    font-family: inherit;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.3s;
}

#chat-input:focus {
    border-color: rgba(255, 220, 150, 0.5);
}

#chat-send {
    background-color: rgba(255, 220, 150, 0.8);
    color: var(--color-black);
    border-radius: 20px;
    padding: 0 15px;
    font-size: 0.9rem;
    font-weight: var(--font-weight-bold);
    transition: all 0.2s;
}

#chat-send:hover {
    background-color: rgb(255, 220, 150);
    transform: scale(1.05);
}

/* 正在输入动画 */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 10px 14px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    border-bottom-left-radius: 2px;
    align-self: flex-start;
    width: fit-content;
    margin-bottom: 10px;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out both;
}

.typing-dot:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes typing {

    0%,
    80%,
    100% {
        transform: scale(0);
    }

    40% {
        transform: scale(1);
    }
}

/* 工具类 */
.hidden {
    display: none !important;
}

.no-scroll {
    overflow: hidden;
}