/* =========================================================
       全局重置与硬性布局规则
       ========================================================= */
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      overflow-x: hidden;
    }

    body {
      overflow-x: hidden;
      background: #e8e8e8;
      font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      -webkit-font-smoothing: antialiased;
      perspective: 1400px;
    }

    /* 最外层 1920px 居中画布，所有内容嵌套其中 */
    .wrap-1920 {
      width: 1920px;
      margin: 0 auto;
      position: relative;
      overflow: hidden;
      background-color: #ffffff;
      background-image: url('../assets/images/screenshot_244_955.webp');
      background-size: 1920px auto;
      background-position: center top;
      background-repeat: no-repeat;
      height: 8660px;
    }

    /* =========================================================
       顶部固定导航栏
       ========================================================= */
    .nav-bar {
      position: fixed;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 1920px;
      height: 80px;
      z-index: 999;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 72px;
      background: #FEFAF3;
      border-bottom: 1px solid rgba(0, 0, 0, 0.06);
      /* 父容器本身不使用 transform 做动画，仅用于居中；子元素动画基于 transform/opacity */
      will-change: auto;
    }

    .nav-logo {
      display: flex;
      align-items: center;
      cursor: pointer;
      transform-origin: 50% 50%;
      transition: transform 0.25s ease;
    }

    .nav-logo img {
      width: 333px;
      height: 36px;
      display: block;
      object-fit: contain;
      pointer-events: none;
    }

    .nav-logo:hover {
      transform: scale(1.03);
    }

    .nav-logo:active {
      transform: scale(0.98);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 48px;
    }

    .nav-btn {
      display: block;
      width: 150px;
      height: 45px;
      cursor: pointer;
      transform-origin: 50% 50%;
      transition: transform 0.25s ease;
      will-change: transform;
    }

    .nav-btn img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: contain;
      pointer-events: none;
    }

    .nav-btn:hover {
      transform: scale(1.08);
    }

    .nav-btn:active {
      transform: scale(0.96);
    }

    /* =========================================================
       全屏区块基础样式
       ========================================================= */
    .screen-1080 {
      width: 1920px;
      height: 1080px;
      position: relative;
      overflow: hidden;
      transform-origin: 50% 50%;
    }

    /* =========================================================
       Screen-Home：首页背景 + 可点击数字图形 + 花瓣飘落
       ========================================================= */
    #home {
      background: transparent;
    }

    /* 背景层：使用新背景图 */
    .home-bg-layer {
      position: absolute;
      inset: 0;
      pointer-events: none;
      z-index: 0;
    }

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

    /* 首页图形组合容器：整体水平居中，内部元素保持相对位置 */
    .home-graphics-wrap {
      position: absolute;
      top: 0;
      left: 50%;
      width: 1056px;
      height: 100%;
      margin-left: -528px;
      z-index: 5;
      pointer-events: none;
    }

    .home-graphics-wrap > * {
      pointer-events: auto;
    }

    /* 首页可点击元素通用样式 */
    .home-clickable {
      position: absolute;
      cursor: pointer;
      z-index: 5;
      transform-origin: 50% 50%;
      will-change: transform;
      transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
    }

    .home-clickable img {
      width: 100%;
      height: 100%;
      display: block;
      pointer-events: none;
    }

    .home-clickable:hover {
      transform: scale(1.05);
    }

    .home-clickable.bouncing {
      animation: graphicBounce 0.4s ease-out;
    }

    /* 草坪：可点击数字图形，点击触发花瓣 + 回弹 */
    .digital-graphic {
      position: absolute;
      top: 587px;
      left: 0;
      width: 1056px;
      height: 376px;
      cursor: pointer;
      z-index: 5;
      will-change: transform;
      transform-origin: 50% 50%;
      transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
    }

    .digital-graphic:hover {
      transform: scale(1.03);
    }

    .digital-graphic:active {
      transform: scale(0.97);
    }

    /* 点击数字图形的回弹动画：scale 1 -> 1.15 -> 1，0.4s ease-out */
    .digital-graphic.bouncing {
      animation: graphicBounce 0.4s ease-out;
    }

    @keyframes graphicBounce {
      0% { transform: scale(1); }
      40% { transform: scale(1.15); }
      100% { transform: scale(1); }
    }

    .digital-graphic img {
      width: 100%;
      height: 100%;
      display: block;
    }

    /* 首页各导航图标定位（依据 Figma 244_955 帧导出坐标） */
    .home-hello {
      top: 206px;
      left: 34px;
      width: 494px;
      height: 274px;
    }

    .home-home-icon {
      top: 414px;
      left: 503px;
      width: 299px;
      height: 200px;
    }

    .home-garden {
      top: 480px;
      left: 888px;
      width: 113px;
      height: 188px;
    }

    .home-catalog {
      top: 202px;
      left: 763px;
      width: 168px;
      height: 212px;
    }

    /* 飘落的花瓣容器 */
    .petal-layer {
      position: absolute;
      inset: 0;
      pointer-events: none;
      z-index: 20;
      overflow: hidden;
    }

    .petal {
      position: absolute;
      width: var(--petal-size, 22px);
      height: var(--petal-size, 22px);
      top: -40px;
      pointer-events: none;
      will-change: transform, opacity;
      transform-origin: 50% 50%;
    }

    /* 花瓣飘落关键帧：随机性由 JS 控制 size/duration/sway/rotate，仅 transform + opacity */
    @keyframes petalFall {
      0% {
        transform: translateY(0) translateX(0) rotate(0deg);
        opacity: 1;
      }
      25% {
        transform: translateY(290px) translateX(var(--sway-a, 60px)) rotate(calc(var(--petal-rotate, 360deg) * 0.25));
        opacity: 1;
      }
      50% {
        transform: translateY(580px) translateX(var(--sway-b, -60px)) rotate(calc(var(--petal-rotate, 360deg) * 0.5));
        opacity: 1;
      }
      75% {
        transform: translateY(870px) translateX(var(--sway-a, 60px)) rotate(calc(var(--petal-rotate, 360deg) * 0.75));
        opacity: 1;
      }
      100% {
        transform: translateY(1160px) translateX(0) rotate(var(--petal-rotate, 360deg));
        opacity: 0;
      }
    }

    @keyframes slowRotate {
      from { transform: rotate(0deg); }
      to { transform: rotate(360deg); }
    }

    @keyframes floatY {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-24px); }
    }

    /* 滚动提示 */
    .scroll-hint {
      position: absolute;
      bottom: 48px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 8px;
      color: #6b6b7b;
      font-size: 14px;
      animation: floatY 2.2s ease-in-out infinite;
    }

    .scroll-hint .mouse {
      width: 24px;
      height: 38px;
      border: 2px solid #6b6b7b;
      border-radius: 14px;
      position: relative;
    }

    .scroll-hint .mouse::after {
      content: "";
      position: absolute;
      top: 6px;
      left: 50%;
      transform: translateX(-50%);
      width: 4px;
      height: 6px;
      background: #6b6b7b;
      border-radius: 2px;
      animation: scrollDot 1.6s ease-in-out infinite;
    }

    @keyframes scrollDot {
      0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
      50% { opacity: 0.3; transform: translateX(-50%) translateY(10px); }
    }

    /* =========================================================
       Screen-About：可拖拽纸条布局（仅本区块修改）
       硬性约束：所有动画元素 transform-origin:50% 50% !important；
       仅使用 transform / opacity；父容器不添加任何动画 transform。
       ========================================================= */
    .screen-about {
      background: #FAFCF1;
      user-select: none;
    }

    /* --- 1. 背景：1920×1080 铺满整个区块 --- */
    .about-bg-layer {
      position: absolute;
      inset: 0;
      z-index: 0;
      pointer-events: none;
      overflow: hidden;
    }

    .about-bg-layer img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
      object-position: center center;
    }

    /* --- 2. 可拖拽纸条层 --- */
    .about-notes-layer {
      position: absolute;
      inset: 0;
      z-index: 5;
    }

    .about-note {
      position: absolute;
      cursor: grab;
      transform-origin: 50% 50% !important;
      will-change: transform;
      filter: drop-shadow(0 10px 28px rgba(0, 0, 0, 0.12));
      transition: filter 0.2s ease;
    }

    .about-note:active {
      cursor: grabbing;
      filter: drop-shadow(0 16px 40px rgba(0, 0, 0, 0.18));
    }

    .about-note img {
      width: 100%;
      height: auto;
      display: block;
      pointer-events: none;
      transform-origin: 50% 50% !important;
      will-change: transform;
    }

    /* 点击/拖拽开始时的回弹动画：scale 1 -> 1.15 -> 1，0.4s ease-out */
    .about-note.bouncing img {
      animation: noteBounce 0.4s ease-out;
    }

    @keyframes noteBounce {
      0% {
        transform: scale(1);
      }
      50% {
        transform: scale(1.15);
      }
      100% {
        transform: scale(1);
      }
    }

    /* --- 3. hello 1：左右轻微抖动循环动画 --- */
    .about-hello {
      position: absolute;
      left: 1490px;
      top: 750px;
      width: 278px;
      height: 154px;
      z-index: 5;
      pointer-events: none;
      transform-origin: 50% 50%;
      will-change: transform;
      animation: helloShake 1.4s ease-in-out infinite;
    }

    .about-hello img {
      width: 100%;
      height: 100%;
      display: block;
    }

    @keyframes helloShake {
      0%, 100% { transform: translateX(0); }
      25% { transform: translateX(-5px); }
      75% { transform: translateX(5px); }
    }

    /* --- 4. 装饰元素：右下角纸飞机 --- */
    .about-plane {
      position: absolute;
      right: 120px;
      bottom: 110px;
      width: 92px;
      height: 92px;
      z-index: 6;
      pointer-events: none;
      transform-origin: 50% 50% !important;
      filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.08));
    }

    /* =========================================================
       Screen-Project：目录 → 打开的目录本 → 详情页
       ========================================================= */
    #project {
      background: #FEFAF3;
      position: relative;
      overflow: hidden;
    }

    /* Project 背景：已隐藏，保持页面干净 */
    .project-bg-layer {
      position: absolute;
      inset: 0;
      z-index: 0;
      pointer-events: none;
      overflow: hidden;
      display: none;
    }

    .project-bg-layer img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
      object-position: center top;
    }

    .project-stage {
      position: relative;
      width: 1920px;
      height: 1080px;
    }

    /* 目录首帧：4 个选项在 16:9 画布内水平均匀居中、垂直居中 */
    .project-catalog {
      position: absolute;
      inset: 0;
      z-index: 5;
      display: flex;
      justify-content: space-evenly;
      align-items: center;
      transition: opacity 0.5s ease, transform 0.5s ease;
      will-change: transform, opacity;
      transform-origin: 50% 50%;
      perspective: 1200px;
      transform-style: preserve-3d;
    }

    .project-catalog.hidden {
      opacity: 0;
      pointer-events: none;
      transform: scale(0.95);
    }

    /* 可点击目录选项：作品集目录文件夹样式 308x412 */
    .catalog-option {
      position: relative;
      width: 308px;
      height: 412px;
      flex-shrink: 0;
      cursor: pointer;
      transform-origin: 50% 50%;
      transition: transform 0.5s ease, filter 0.35s ease;
      will-change: transform, opacity;
      /* 初始状态：从底部 1200px 外滑入 */
      opacity: 0;
      transform: translateY(1200px);
      z-index: 1;
      filter: drop-shadow(0 14px 28px rgba(0, 0, 0, 0.12));
    }

    /* Project 提示文字：位于卡片下方 */
    .project-hint-text {
      position: absolute;
      left: 50%;
      bottom: 186px;
      transform: translateX(-50%);
      z-index: 6;
      color: #008A04;
      font-size: 24px;
      font-weight: 600;
      letter-spacing: 2px;
      font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      white-space: nowrap;
      pointer-events: none;
      opacity: 0;
    }

    /* 光标闪烁 */
    .project-hint-text.typing::after,
    .project-hint-text.typing-done::after {
      content: '|';
      margin-left: 2px;
      color: #008A04;
      animation: projectHintCaret 0.7s step-end infinite;
    }

    .project-hint-text.typing-done::after {
      animation-duration: 1.1s;
    }

    .project-hint-text.caret-hidden::after {
      content: none;
      animation: none;
    }

    @keyframes projectHintCaret {
      0%, 100% { opacity: 1; }
      50% { opacity: 0; }
    }

    #project.in-view .project-hint-text {
      opacity: 1;
      transition: opacity 0.4s ease;
      transition-delay: 0.6s;
    }

    /* Project 进入视口：目录选项从底部向上滑入， stagger 延迟 */
    #project.in-view .catalog-option {
      animation: optionSlideUp 0.9s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
    }

    #project.in-view .catalog-option:nth-child(1) { animation-delay: 0.05s; }
    #project.in-view .catalog-option:nth-child(2) { animation-delay: 0.15s; }
    #project.in-view .catalog-option:nth-child(3) { animation-delay: 0.25s; }
    #project.in-view .catalog-option:nth-child(4) { animation-delay: 0.35s; }

    @keyframes optionSlideUp {
      0% {
        opacity: 0;
        transform: translateY(1200px);
      }
      100% {
        opacity: 1;
        transform: translateY(0);
      }
    }

    .catalog-option img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: contain;
      pointer-events: none;
    }

    .catalog-option:hover {
      z-index: 10;
      filter: drop-shadow(0 28px 56px rgba(0, 0, 0, 0.22));
    }

    /* 悬停时内部图片回弹：scale 1 -> 1.15 -> 1，0.4s ease-out */
    .catalog-option:hover img {
      animation: catalogBounce 0.4s ease-out;
    }

    @keyframes catalogBounce {
      0% { transform: scale(1); }
      50% { transform: scale(1.15); }
      100% { transform: scale(1); }
    }

    /* 点击目录：书本左右翻页动效 */
    .catalog-option.flipping-left {
      animation: optionFlipLeft 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
      pointer-events: none;
    }

    .catalog-option.flipping-right {
      animation: optionFlipRight 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
      pointer-events: none;
    }

    @keyframes optionFlipLeft {
      0% {
        opacity: 1;
        transform: translateY(0) rotateY(0deg) scale(1);
      }
      50% {
        opacity: 0.9;
        transform: translateY(0) rotateY(-90deg) scale(0.92);
      }
      100% {
        opacity: 0;
        transform: translateY(0) rotateY(-180deg) scale(0.85);
      }
    }

    @keyframes optionFlipRight {
      0% {
        opacity: 1;
        transform: translateY(0) rotateY(0deg) scale(1);
      }
      50% {
        opacity: 0.9;
        transform: translateY(0) rotateY(90deg) scale(0.92);
      }
      100% {
        opacity: 0;
        transform: translateY(0) rotateY(180deg) scale(0.85);
      }
    }

    /* 打开的目录本 */
    .project-open-book {
      position: absolute;
      top: 50%;
      left: 50%;
      width: 710px;
      height: 505px;
      transform: translate(-50%, -50%) scale(0.9);
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
      will-change: transform, opacity;
      cursor: pointer;
      transform-origin: 50% 50%;
    }

    .project-open-book.active {
      transform: translate(-50%, -50%) scale(1);
      opacity: 1;
      pointer-events: auto;
    }

    .project-open-book > img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: contain;
    }

    .project-open-book.active:hover {
      transform: translate(-50%, -50%) scale(1.02);
    }

    /* 目录本内掉落图片 */
    .open-book-images {
      position: absolute;
      inset: 0;
      pointer-events: auto;
    }

    .open-book-img {
      position: absolute;
      opacity: 0;
      transform: translateY(-100px) rotate(0deg);
      transition: transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.6s ease;
      will-change: transform, opacity;
      transform-origin: 50% 50%;
      cursor: grab;
      user-select: none;
    }

    .open-book-img:active {
      cursor: grabbing;
    }

    .open-book-img:nth-child(1) {
      left: 0;
      top: 0;
      width: 710px;
      height: 505px;
      --img-rotate: -2deg;
    }

    .open-book-img:nth-child(2) {
      left: 402px;
      top: 27px;
      width: 342px;
      height: 450px;
      --img-rotate: 3deg;
    }

    .project-open-book.active .open-book-img:nth-child(1) {
      opacity: 1;
      transform: translateY(0) rotate(var(--img-rotate));
      transition-delay: 0.2s;
    }

    .project-open-book.active .open-book-img:nth-child(2) {
      opacity: 1;
      transform: translateY(0) rotate(var(--img-rotate));
      transition-delay: 0.38s;
    }

    /* 作品集目录详情页全图：宽度 1920px，按图片自然高度撑满整页 */
    .detail-content.detail-full {
      padding: 0;
      display: block;
      height: auto;
      min-height: calc(100vh - 80px);
      overflow: visible;
    }

    .detail-content.detail-full img {
      width: 1920px;
      height: auto;
      display: block;
      flex-shrink: 0;
    }

    /* =========================================================
       项目详情子页面（单文件内模拟独立页面）
       ========================================================= */
    .project-detail {
      position: fixed;
      top: 0;
      left: 50%;
      width: 1920px;
      height: 100vh;
      margin-left: -960px;
      z-index: 900;
      background: #ffffff;
      opacity: 0;
      pointer-events: none;
      transform: translateY(40px);
      transition: opacity 0.55s ease, transform 0.55s cubic-bezier(0.2, 0.8, 0.2, 1);
      will-change: transform, opacity;
      overflow-y: auto;
      overflow-x: hidden;
    }

    .project-detail.active {
      opacity: 1;
      pointer-events: auto;
      transform: translateY(0);
    }

    /* 详情页翻页弹出：从 scale 0.85 + rotateY 翻转至正常 */
    .project-detail.flip-pop {
      animation: detailFlipPop 0.65s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
    }

    @keyframes detailFlipPop {
      0% {
        opacity: 0;
        transform: translateY(40px) scale(0.82) rotateY(-18deg);
      }
      55% {
        opacity: 1;
        transform: translateY(0) scale(1.02) rotateY(6deg);
      }
      100% {
        opacity: 1;
        transform: translateY(0) scale(1) rotateY(0deg);
      }
    }

    .detail-nav {
      position: fixed;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 1920px;
      height: 64px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 24px;
      border-bottom: 1px solid rgba(0, 0, 0, 0.06);
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      z-index: 1000;
      box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
    }

    .detail-back {
      display: flex;
      align-items: center;
      gap: 10px;
      background: none;
      border: none;
      font-size: 16px;
      color: #4a4a5a;
      cursor: pointer;
      padding: 8px 16px;
      border-radius: 8px;
      transition: background 0.2s ease, transform 0.2s ease;
      will-change: transform;
      transform-origin: 50% 50%;
    }

    .detail-back:hover {
      background: rgba(0, 0, 0, 0.06);
      transform: translateX(-6px);
    }

    .detail-title {
      font-size: 24px;
      font-weight: 700;
      color: #1a1a2e;
    }

    .detail-content {
      height: 1000px;
      display: flex;
      padding: 80px 120px;
      gap: 80px;
    }

    .detail-visual {
      width: 720px;
      height: 720px;
      border-radius: 20px;
      background: linear-gradient(135deg, #e0e7ff, #f3e8ff);
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
    }

    .detail-visual svg {
      width: 300px;
      height: 300px;
      opacity: 0.8;
    }

    .detail-text {
      flex: 1;
      padding-top: 40px;
    }

    .detail-text h3 {
      font-size: 52px;
      font-weight: 800;
      color: #1a1a2e;
      margin-bottom: 32px;
    }

    .detail-text p {
      font-size: 20px;
      color: #5a5a6e;
      line-height: 1.8;
      margin-bottom: 28px;
    }

    .detail-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 40px;
    }

    .detail-tag {
      padding: 10px 22px;
      background: #f1f5f9;
      border-radius: 30px;
      font-size: 15px;
      color: #475569;
    }

    /* ===== Project 卡片与详情页切换优化 ===== */
    .card, .page {
      will-change: transform, opacity;
      backface-visibility: hidden;
      transform: translateZ(0);
    }

    .page {
      transition: opacity 0.4s ease, transform 0.4s ease;
    }

    .page.hidden {
      opacity: 0;
      transform: translateY(30px) scale(0.98);
      pointer-events: none;
    }

    .page.active {
      opacity: 1;
      transform: translateY(0) scale(1);
      pointer-events: auto;
    }

    .card {
      cursor: pointer;
      pointer-events: auto;
    }

    .card * {
      pointer-events: none;
    }

    /* =========================================================
       Screen-PortfolioOpen：打开的目录
       硬性约束：动画仅 transform/opacity；transform-origin:50% 50%
       ========================================================= */
    #portfolioOpen {
      background: #FEFAF3;
      position: relative;
      overflow: hidden;
    }

    #portfolioOpen .portfolio-open-bg {
      position: absolute;
      inset: 0;
      z-index: 0;
      pointer-events: none;
      display: none;
    }

    #portfolioOpen .portfolio-open-bg img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
    }

    /* 作品集标题：手写涂鸦出现 */
    #portfolioOpen .portfolio-open-title {
      position: absolute;
      left: 533px;
      top: 0;
      width: 855px;
      height: 103px;
      z-index: 2;
      opacity: 0;
      transform: scale(0.85);
      transform-origin: 50% 50%;
      will-change: transform, opacity;
    }

    #portfolioOpen .portfolio-open-title img {
      width: 100%;
      height: 100%;
      display: block;
    }

    /* 首页图标：左右轻微抖动循环 */
    #portfolioOpen .portfolio-open-home {
      position: absolute;
      left: 1122px;
      top: 819px;
      width: 299px;
      height: 200px;
      z-index: 2;
      transform-origin: 50% 50%;
      will-change: transform;
      animation: portfolioHomeShake 1.4s ease-in-out infinite;
    }

    #portfolioOpen .portfolio-open-home img {
      width: 100%;
      height: 100%;
      display: block;
    }

    @keyframes portfolioHomeShake {
      0%, 100% { transform: translateX(0); }
      25% { transform: translateX(-5px); }
      75% { transform: translateX(5px); }
    }

    /* 文件夹组合：居中于画面 */
    #portfolioOpen .folder-composition {
      position: absolute;
      left: 451px;
      top: 62.5px;
      width: 1018px;
      height: 955px;
      z-index: 1;
    }

    #portfolioOpen .folder-base {
      position: absolute;
      left: 0;
      top: 0;
      width: 1018px;
      height: 955px;
      z-index: 0;
      pointer-events: none;
    }

    #portfolioOpen .folder-base img {
      width: 100%;
      height: 100%;
      display: block;
    }

    #portfolioOpen .folder-item {
      position: absolute;
      opacity: 0;
      transform: translateY(-220px);
      transform-origin: 50% 50%;
      will-change: transform, opacity;
      z-index: 1;
      cursor: grab;
      touch-action: none;
      user-select: none;
    }

    #portfolioOpen .folder-item:active {
      cursor: grabbing;
    }

    #portfolioOpen .folder-item img {
      width: 100%;
      height: 100%;
      display: block;
    }

    #portfolioOpen .folder-book {
      left: 167px;
      top: 225px;
      width: 710px;
      height: 505px;
    }

    #portfolioOpen .folder-sticky {
      left: 0;
      top: 248px;
      width: 482px;
      height: 482px;
    }

    #portfolioOpen .folder-grid {
      left: 676px;
      top: 140px;
      width: 342px;
      height: 450px;
    }

    /* 进入视口后触发掉落与涂鸦动画（仅触发一次） */
    #portfolioOpen.in-view .folder-book {
      animation: folderDrop 0.85s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
    }

    #portfolioOpen.in-view .folder-sticky {
      animation: folderDrop 0.85s cubic-bezier(0.2, 0.8, 0.2, 1) 0.14s forwards;
    }

    #portfolioOpen.in-view .folder-grid {
      animation: folderDrop 0.85s cubic-bezier(0.2, 0.8, 0.2, 1) 0.28s forwards;
    }

    #portfolioOpen.in-view .portfolio-open-title {
      animation: doodleAppear 0.7s cubic-bezier(0.2, 0.8, 0.2, 1) 0.55s forwards;
    }

    @keyframes folderDrop {
      0% {
        opacity: 0;
        transform: translateY(-220px) rotate(var(--folder-rotate, 0deg));
      }
      100% {
        opacity: 1;
        transform: translateY(0) rotate(var(--folder-rotate, 0deg));
      }
    }

    @keyframes doodleAppear {
      0% {
        opacity: 0;
        transform: scale(0.85);
      }
      100% {
        opacity: 1;
        transform: scale(1);
      }
    }

    /* 打字机文字：居中显示 */
    #portfolioOpen .portfolio-typewriter {
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      z-index: 10;
      width: 1100px;
      text-align: center;
      pointer-events: none;
    }

    #portfolioOpen .typewriter-text {
      font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      font-size: 24px;
      font-weight: 700;
      line-height: 1.9;
      color: #3a3a3a;
      white-space: pre-line;
      letter-spacing: 0.04em;
    }

    #portfolioOpen .typewriter-cursor {
      display: inline-block;
      width: 2px;
      height: 1.1em;
      background: #3a3a3a;
      margin-left: 4px;
      vertical-align: middle;
      animation: cursorBlink 0.85s step-end infinite;
      transform-origin: 50% 50%;
    }

    @keyframes cursorBlink {
      0%, 100% { opacity: 1; }
      50% { opacity: 0; }
    }

    /* =========================================================
       Screen-Garden：灵感库（参考 screenshot_195_194）
       硬性约束：动画仅 transform/opacity；transform-origin:50% 50%
       ========================================================= */
    #garden {
      background: transparent;
      position: relative;
      overflow: hidden;
      width: 1920px;
      height: 2100px;
    }

    /* 背景层：使用 screenshot_257_518.png 铺满 */
    .garden-bg {
      position: absolute;
      inset: 0;
      z-index: 0;
      pointer-events: none;
    }

    .garden-bg img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
    }

    /* 花园图标：底部盆栽，左右轻微抖动循环 */
    .garden-plant {
      position: absolute;
      left: 903px;
      top: 1882px;
      width: 113px;
      height: 188px;
      z-index: 6;
      transform-origin: 50% 50%;
      will-change: transform;
      animation: gardenShake 1.4s ease-in-out infinite;
    }

    .garden-plant img {
      width: 100%;
      height: 100%;
      display: block;
    }

    @keyframes gardenShake {
      0%, 100% { transform: translateX(0); }
      25% { transform: translateX(-5px); }
      75% { transform: translateX(5px); }
    }

    /* --- 1. 左右分栏主容器 --- */
    .garden-main {
      position: absolute;
      top: 300px;
      left: 0;
      width: 1920px;
      height: 1562px;
      display: flex;
      padding: 0;
      z-index: 5;
    }

    /* --- 2. 左侧时间轴区域（746px） --- */
    .garden-timeline {
      width: 746px;
      height: 1575px;
      position: relative;
      margin-top: -13px;
      overflow: hidden;
    }

    .garden-timeline-board {
      position: absolute;
      left: 0;
      top: 0;
      width: 761px;
      height: 1575px;
      will-change: transform, opacity;
      transform-origin: 50% 50% !important;
    }

    .garden-timeline-board > img {
      width: 100%;
      height: 100%;
      display: block;
      pointer-events: none;
    }

    /* 马赛克遮罩层 */
    .garden-timeline-mosaic {
      position: absolute;
      inset: 0;
      z-index: 2;
      display: grid;
      grid-template-columns: repeat(8, 1fr);
      grid-template-rows: repeat(16, 1fr);
      pointer-events: none;
    }

    .mosaic-tile {
      background: #e8f5d6;
      opacity: 1;
      will-change: opacity;
      transform-origin: 50% 50%;
    }

    #garden.in-view .mosaic-tile {
      animation: mosaicReveal 0.45s ease-out forwards;
      animation-delay: calc(var(--row, 0) * 0.08s);
    }

    @keyframes mosaicReveal {
      to { opacity: 0; }
    }

    /* --- 3. 右侧瀑布流区域（1164px） --- */
    .garden-waterfall {
      width: 1164px;
      height: 1596px;
      display: flex;
      align-items: flex-start;
      overflow: hidden;
      margin-top: 4px;
      margin-left: 10px;
    }

    .garden-waterfall-col {
      position: relative;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      row-gap: 32px;
    }

    .garden-waterfall-col:nth-child(1) { margin-top: -303px; }
    .garden-waterfall-col:nth-child(2) { margin-top: 1px; margin-left: 12px; }
    .garden-waterfall-col:nth-child(3) { margin-top: -303px; margin-left: 12px; }

    .note-card {
      width: 380px;
      flex-shrink: 0;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      background: #ffffff;
      padding: 18px;
      row-gap: 16px;
      opacity: 0;
      transform: translateY(50px);
      will-change: transform, opacity;
      transform-origin: 50% 50% !important;
      animation-fill-mode: both;
      transition: transform 0.25s ease, opacity 0.25s ease;
      box-shadow: 0px 10px 7px 0px rgba(0, 0, 0, 0.25);
    }

    .note-card:hover {
      transform: translateY(-4px);
      opacity: 0.95;
    }

    .note-card .note-thumb {
      width: 344px;
      height: 459px;
      overflow: hidden;
      flex-shrink: 0;
    }

    .note-card .note-thumb img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
    }

    .note-card .note-text {
      width: 344px;
      font-family: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", SimHei, Arial, Helvetica, sans-serif;
      font-size: 13px;
      line-height: 1.5;
      color: #000000;
      text-align: center;
    }

    .note-card .note-meta {
      width: 105px;
      align-self: center;
      font-family: ABeeZee, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", SimHei, Arial, Helvetica, sans-serif;
      font-size: 15px;
      line-height: 19px;
      color: #000000;
      text-align: center;
      letter-spacing: 0;
    }

    #garden.in-view .note-card {
      animation: cardFadeIn 0.55s cubic-bezier(0.2, 0.8, 0.2, 1) both;
      animation-delay: var(--delay, 0s);
    }

    @keyframes cardFadeIn {
      from { opacity: 0; transform: translateY(50px); }
      to { opacity: 1; transform: translateY(0); }
    }

    /* 瀑布流自动循环滚动：仅 transform，避免 reflow */
    .garden-waterfall-scroll {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      row-gap: 32px;
      will-change: transform;
      transform-origin: 50% 50% !important;
      animation: waterfallScroll var(--scroll-duration, 20s) linear infinite;
    }

    .garden-waterfall-col:hover .garden-waterfall-scroll,
    .garden-waterfall-scroll.paused {
      animation-play-state: paused;
    }

    @keyframes waterfallScroll {
      from { transform: translateY(0); }
      to { transform: translateY(-50%); }
    }

    /* 循环轨道内的卡片不再执行入场动画，保持可见 */
    #garden.in-view .garden-waterfall-scroll .note-card {
      animation: none !important;
      opacity: 1 !important;
      transform: translateY(0) !important;
    }

    /* --- 4. 右下角添加按钮 --- */
    .garden-add-btn {
      position: fixed;
      right: 60px;
      bottom: 60px;
      z-index: 9999;
      display: flex;
      align-items: center;
      gap: 12px;
      cursor: pointer;
      transform-origin: 100% 50%;
      will-change: transform, opacity;
      transition: opacity 0.3s ease;
      opacity: 1;
    }

    .garden-add-btn.hidden {
      opacity: 0 !important;
      pointer-events: none !important;
    }

    .garden-add-btn .btn-icon {
      width: 56px;
      height: 56px;
      border-radius: 50%;
      background: #008A04;
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 28px;
      box-shadow: 0 8px 24px rgba(0, 138, 4, 0.35);
      transition: transform 0.3s ease;
      transform-origin: 50% 50%;
      flex-shrink: 0;
    }

    .garden-add-btn:hover .btn-icon {
      transform: scale(1.08);
    }

    .garden-add-btn .btn-label {
      font-size: 16px;
      color: #008A04;
      font-weight: 600;
      opacity: 1;
      transition: opacity 0.3s ease, transform 0.3s ease;
      transform-origin: 100% 50%;
      white-space: nowrap;
    }

    .garden-add-btn.collapsed .btn-label {
      opacity: 0;
      transform: translateX(20px);
      pointer-events: none;
    }

    /* 按钮收起/展开切换小箭头 */
    .garden-add-btn .btn-toggle {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: rgba(0, 138, 4, 0.12);
      color: #008A04;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      transition: transform 0.3s ease, opacity 0.3s ease;
      transform-origin: 50% 50%;
      flex-shrink: 0;
    }

    .garden-add-btn.collapsed .btn-toggle {
      transform: rotate(180deg);
    }

    /* 当 body 等祖先带 perspective 导致 fixed 定位相对于 body 时，
       通过 JS 实时更新 --garden-scroll-y 让按钮保持在视口右下角 */
    .garden-add-btn.perspective-fix {
      top: calc(var(--garden-scroll-y, 0px) + 100vh - 60px - var(--garden-btn-height, 56px));
      bottom: auto;
    }

    /* --- 5. 添加弹窗（主组件 screenshot_300_471.png） --- */
    .garden-modal-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.5);
      z-index: 10000;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.3s ease;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .garden-modal-overlay.active {
      opacity: 1;
      pointer-events: auto;
    }

    /* 弹窗打开时隐藏添加按钮，避免在 perspective 容器下出现层级异常 */
    .garden-add-btn.modal-open {
      opacity: 0 !important;
      pointer-events: none !important;
    }

    .garden-modal-overlay.perspective-fix {
      top: var(--garden-scroll-y, 0px);
      left: 0;
      right: auto;
      bottom: auto;
      width: 100vw;
      height: 100vh;
    }

    .garden-modal {
      position: relative;
      width: 395px;
      height: 594px;
      background: url('../assets/images/screenshot_300_471.webp') no-repeat center / 100% 100%;
      transform: scale(0.92);
      opacity: 0;
      transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.3s ease;
      transform-origin: 50% 50%;
    }

    .garden-modal-overlay.active .garden-modal {
      transform: scale(1);
      opacity: 1;
    }

    .garden-modal-preview {
      position: absolute;
      top: 10px;
      left: 10px;
      width: 375px;
      height: 455px;
      overflow: hidden;
      cursor: pointer;
    }

    .garden-modal-preview img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
    }

    .garden-modal-preview .preview-placeholder {
      display: none;
    }

    .garden-modal-preview input[type="file"] {
      position: absolute;
      inset: 0;
      opacity: 0;
      cursor: pointer;
    }

    .garden-modal-body {
      position: absolute;
      top: 470px;
      left: 20px;
      width: 355px;
      height: 86px;
      background: #ffffff;
    }

    .garden-modal-body .modal-text {
      width: 100%;
      height: 54px;
      border: none;
      outline: none;
      font-size: 13px;
      line-height: 1.55;
      color: #000000;
      text-align: center;
      font-family: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
      resize: none;
      background: transparent;
    }

    .garden-modal-body .modal-text::placeholder {
      color: #a2a2a2;
    }

    .garden-modal-body .modal-date {
      display: block;
      width: 130px;
      height: 24px;
      margin: 2px auto 0;
      border: none;
      outline: none;
      font-size: 15px;
      line-height: 24px;
      color: #000000;
      text-align: center;
      font-family: FZLanTingHeiS-R-GB, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
      background: transparent;
    }

    .garden-modal-body .modal-date::placeholder {
      color: #999999;
    }

    .garden-modal .btn-submit {
      position: absolute;
      left: 50%;
      bottom: 6px;
      transform: translateX(-50%);
      padding: 6px 36px;
      font-size: 14px;
      cursor: pointer;
      border: none;
      border-radius: 4px;
      background: #008A04;
      color: #ffffff;
      font-family: inherit;
      transition: transform 0.2s ease, opacity 0.2s ease;
      transform-origin: 50% 50%;
      box-shadow: 0 4px 14px rgba(0, 138, 4, 0.35);
    }

    .garden-modal .btn-submit:hover {
      transform: translateX(-50%) scale(1.05);
    }

    /* =========================================================
       Screen-Contact：三纸条轮播（参考 screenshot_212_229）
       硬性约束：动画仅 transform/opacity；transform-origin:50% 50%
       ========================================================= */
    #contact {
      background: transparent;
      position: relative;
      overflow: hidden;
      height: 1080px;
    }

    .contact-bg {
      position: absolute;
      inset: 0;
      z-index: 0;
      pointer-events: none;
    }

    .contact-bg img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
    }

    .contact-carousel {
      position: relative;
      width: 1920px;
      height: 1080px;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .contact-card {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      transform-origin: 50% 50%;
      cursor: pointer;
      will-change: transform, opacity;
      user-select: none;
      transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1),
                  opacity 0.4s ease;
    }

    .contact-card img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: contain;
      pointer-events: none;
    }

    /* 三个纸条按参考图分别设定尺寸 */
    .contact-info-card {
      width: 500px;
      height: 860px;
    }

    /* 联系方式卡片上的简历链接热区 */
    .contact-resume-link {
      position: absolute;
      left: 120px;
      top: 405px;
      width: 160px;
      height: 55px;
      display: none;
      cursor: pointer;
      z-index: 20;
      border-radius: 8px;
      transition: background 0.25s ease;
    }

    .contact-info-card.active .contact-resume-link {
      display: block;
    }

    .contact-resume-link:hover {
      background: rgba(255, 255, 255, 0.15);
    }

    .contact-message-card {
      width: 800px;
      height: 560px;
    }

    .contact-note-card {
      width: 600px;
      height: 720px;
    }

    /* 便利贴可编辑文字，覆盖原图文字 */
    .contact-note-text {
      position: absolute;
      top: 340px;
      left: 190px;
      width: 220px;
      height: 40px;
      font-family: "Encode Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", SimHei, Arial, Helvetica, sans-serif;
      font-size: 21px;
      letter-spacing: 0;
      color: #000000;
      text-align: center;
      line-height: 40px;
      white-space: nowrap;
      overflow: hidden;
      outline: none;
      user-select: text;
      cursor: text;
      z-index: 5;
      background: #3d8cce;
      border-radius: 2px;
      transform-origin: 50% 50%;
    }

    .contact-note-text:empty::before {
      content: attr(data-placeholder);
      color: #000000;
      pointer-events: none;
    }

    .contact-note-text:focus {
      background: #3d8cce;
      box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.5);
    }

    .contact-card.active {
      transform: translate(-50%, -50%) scale(1);
      opacity: 1;
      z-index: 10;
    }

    .contact-card.left {
      transform: translate(-50%, -50%) translateX(-420px) scale(0.78) rotate(-5deg);
      opacity: 0.65;
      z-index: 5;
    }

    .contact-card.right {
      transform: translate(-50%, -50%) translateX(420px) scale(0.78) rotate(5deg);
      opacity: 0.65;
      z-index: 5;
    }

    .contact-card:hover {
      opacity: 1;
    }

    .contact-card.active:hover {
      transform: translate(-50%, -50%) scale(1.02);
    }

    /* 目录 1：右上角装饰图标，左右轻微抖动循环 */
    .contact-catalog {
      position: absolute;
      top: 120px;
      right: 130px;
      width: 168px;
      height: 212px;
      z-index: 20;
      pointer-events: none;
      transform-origin: 50% 50%;
      will-change: transform;
      animation: contactCatalogShake 1.4s ease-in-out infinite;
    }

    .contact-catalog img {
      width: 100%;
      height: 100%;
      display: block;
    }

    @keyframes contactCatalogShake {
      0%, 100% { transform: translateX(0); }
      25% { transform: translateX(-5px); }
      75% { transform: translateX(5px); }
    }

    /* --- 轮播指示器 --- */
    .contact-dots {
      position: absolute;
      bottom: 50px;
      left: 50%;
      transform: translateX(-50%);
      display: flex;
      gap: 14px;
      z-index: 20;
    }

    .contact-dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: rgba(0, 0, 0, 0.2);
      cursor: pointer;
      transition: transform 0.25s ease, background 0.25s ease;
      transform-origin: 50% 50%;
    }

    .contact-dot.active {
      background: #000000;
      transform: scale(1.3);
    }

    /* --- 联系页三张纸条（静态布局，参考 screenshot_212_229） --- */
    .contact-note-item {
      position: absolute;
      transform-origin: 50% 50%;
      will-change: transform;
      cursor: pointer;
      transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1),
                  filter 0.25s ease;
      filter: drop-shadow(0 14px 34px rgba(0, 0, 0, 0.12));
    }

    .contact-note-item img {
      width: 100%;
      height: auto;
      display: block;
      pointer-events: none;
    }

    .contact-note-item:hover {
      transform: scale(1.04);
      filter: drop-shadow(0 20px 48px rgba(0, 0, 0, 0.18));
      z-index: 30;
    }

    .contact-note-item.bouncing {
      animation: contactNoteBounce 0.4s ease-out;
    }

    @keyframes contactNoteBounce {
      0% { transform: scale(1); }
      50% { transform: scale(1.15); }
      100% { transform: scale(1); }
    }

    .contact-note-blue {
      left: 70px;
      top: 420px;
      width: 420px;
      z-index: 12;
    }

    .contact-note-message {
      left: 50%;
      top: 460px;
      width: 1080px;
      transform: translateX(-50%);
      z-index: 14;
    }

    .contact-note-message:hover {
      transform: translateX(-50%) scale(1.04);
    }

    .contact-note-message.bouncing {
      animation: contactMessageBounce 0.4s ease-out;
    }

    @keyframes contactMessageBounce {
      0% { transform: translateX(-50%) scale(1); }
      50% { transform: translateX(-50%) scale(1.15); }
      100% { transform: translateX(-50%) scale(1); }
    }

    .contact-note-info {
      right: 70px;
      top: 320px;
      width: 400px;
      z-index: 13;
    }

    /* =========================================================
       Screen-Ending：结尾页（罐子 + 星光）
       硬性约束：动画仅 transform/opacity；transform-origin:50% 50%
       ========================================================= */
    #ending {
      background: transparent;
      position: relative;
      overflow: hidden;
      width: 1920px;
      height: 1080px;
    }

    .ending-bg {
      position: absolute;
      inset: 0;
      z-index: 0;
      pointer-events: none;
    }

    .ending-bg img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
    }

    /* 罐子：居中显示，保持原图比例 */
    .ending-jar {
      position: absolute;
      inset: 0;
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 0;
      pointer-events: none;
    }

    .ending-jar img {
      width: 760px;
      height: auto;
      display: block;
      object-fit: contain;
    }

    /* 蝴蝶结：顶部装饰带 */
    .ending-bow {
      position: absolute;
      top: 100px;
      left: 50%;
      transform: translateX(-50%);
      width: 1920px;
      height: auto;
      z-index: 1;
      pointer-events: none;
    }

    .ending-bow img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* 星光：自然飘落，倒三角区域分布，尺寸 1~30px 随机 */
    .ending-stars {
      position: absolute;
      top: 0;
      left: 0;
      width: 1920px;
      height: 1080px;
      z-index: 2;
      pointer-events: none;
      overflow: hidden;
    }

    .ending-star {
      position: absolute;
      left: 50%;
      top: 0;
      width: var(--size);
      height: var(--size);
      margin-left: calc(var(--size) * -0.5);
      transform-origin: 50% 50%;
      will-change: transform, opacity;
      opacity: 0;
      animation: starFall var(--duration) linear var(--delay) infinite;
    }

    .ending-star img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: contain;
      pointer-events: none;
    }

    @keyframes starFall {
      0% {
        transform: translate(var(--start-x), var(--start-y)) rotate(0deg);
        opacity: 0;
      }
      6% {
        opacity: 1;
      }
      94% {
        opacity: 1;
      }
      100% {
        transform: translate(var(--end-x), 1120px) rotate(var(--rotate));
        opacity: 0;
      }
    }

    /* =========================================================
       网域：底部 1920×80 横条
       ========================================================= */
    #domain {
      width: 1920px;
      height: 80px;
      position: relative;
      overflow: hidden;
      background: transparent;
    }

    #domain img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
    }

    /* 留言按钮：固定在结尾区块右下角 */
    .message-btn-wrap {
      position: absolute;
      bottom: 60px;
      right: 60px;
      width: 211px;
      height: 78px;
      z-index: 998;
      transform-origin: 50% 50%;
      animation: floatMessage 3.2s ease-in-out infinite;
    }

    .message-btn {
      width: 100%;
      height: 100%;
      padding: 0;
      background: transparent;
      border: none;
      border-radius: 0;
      cursor: pointer;
      transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
      will-change: transform;
      transform-origin: 50% 50%;
    }

    .message-btn img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: contain;
      pointer-events: none;
    }

    .message-btn:hover {
      transform: scale(1.08);
    }

    .message-btn:active {
      transform: scale(0.96);
    }

    @keyframes floatMessage {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-10px); }
    }

    /* =========================================================
       留言弹窗
       ========================================================= */
    .popup-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100vw;
      height: 100vh;
      z-index: 9999;
      background: rgba(0, 0, 0, 0.55);
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.35s ease;
      will-change: opacity, transform;
      transform: translateY(var(--popup-scroll-y, 0px));
    }

    .popup-overlay.active {
      opacity: 1;
      pointer-events: auto;
    }

    .popup-modal {
      position: relative;
      width: 393px;
      height: 651px;
      background: transparent;
      border-radius: 0;
      padding: 0;
      box-shadow: none;
      transform: scale(0.88);
      opacity: 0;
      transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1),
                  opacity 0.35s ease;
      will-change: transform, opacity;
      transform-origin: 50% 50%;
    }

    .popup-overlay.active .popup-modal {
      transform: scale(1);
      opacity: 1;
    }

    .popup-send-img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: contain;
      pointer-events: none;
    }

    .popup-header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 28px;
    }

    .popup-header h3 {
      font-size: 28px;
      font-weight: 800;
      color: #1a1a2e;
    }

    .popup-close {
      width: 40px;
      height: 40px;
      border: none;
      background: #f1f5f9;
      border-radius: 50%;
      cursor: pointer;
      font-size: 22px;
      color: #64748b;
      transition: background 0.2s ease, transform 0.2s ease;
      will-change: transform;
      transform-origin: 50% 50%;
    }

    .popup-close:hover {
      background: #e2e8f0;
      transform: rotate(90deg);
    }

    .popup-form label {
      display: block;
      font-size: 15px;
      color: #475569;
      margin-bottom: 10px;
      font-weight: 600;
    }

    .popup-form input,
    .popup-form textarea {
      width: 100%;
      border: 1px solid #e2e8f0;
      border-radius: 12px;
      padding: 14px 18px;
      font-size: 16px;
      color: #1e293b;
      margin-bottom: 22px;
      outline: none;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
      font-family: inherit;
    }

    .popup-form input:focus,
    .popup-form textarea:focus {
      border-color: #5b6cff;
      box-shadow: 0 0 0 3px rgba(91, 108, 255, 0.12);
    }

    .popup-form textarea {
      min-height: 130px;
      resize: vertical;
    }

    .popup-submit {
      width: 100%;
      padding: 16px;
      background: #5b6cff;
      color: #ffffff;
      font-size: 18px;
      font-weight: 700;
      border: none;
      border-radius: 12px;
      cursor: pointer;
      transition: transform 0.2s ease, background 0.2s ease;
      will-change: transform;
      transform-origin: 50% 50%;
    }

    .popup-submit:hover {
      background: #4f5ee6;
    }

    .popup-submit:active {
      transform: scale(0.98);
    }