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Countdown
File size: 25,574 Bytes
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<!DOCTYPE html>
<html lang="zh-TW">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Classroom Hub - 自適應倒數看板</title>
  <style>
    :root {
      --bg-gradient: radial-gradient(circle at 15% 15%, #0f172a 0%, #020617 100%);
      --card-bg: rgba(30, 41, 59, 0.55);
      --card-border: rgba(255, 255, 255, 0.12);
      --card-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
      --primary-text: #ffffff;
      --secondary-text: #94a3b8;
      --badge-bg: rgba(255, 255, 255, 0.08);
    }

    /* 全域主題樣式切換 */
    body[data-theme="dark-slate"] {
      --bg-gradient: radial-gradient(circle at 15% 15%, #1e293b 0%, #020617 100%);
      --card-bg: rgba(30, 41, 59, 0.55);
      --card-border: rgba(255, 255, 255, 0.12);
      --primary-text: #ffffff;
      --secondary-text: #94a3b8;
      --badge-bg: rgba(255, 255, 255, 0.08);
    }
    body[data-theme="midnight-purple"] {
      --bg-gradient: radial-gradient(circle at 20% 20%, #2e1065 0%, #0b0217 100%);
      --card-bg: rgba(46, 16, 101, 0.4);
      --card-border: rgba(192, 132, 252, 0.2);
      --primary-text: #ffffff;
      --secondary-text: #d8b4fe;
      --badge-bg: rgba(192, 132, 252, 0.12);
    }
    body[data-theme="forest-calm"] {
      --bg-gradient: radial-gradient(circle at 20% 20%, #064e3b 0%, #021a14 100%);
      --card-bg: rgba(6, 78, 59, 0.4);
      --card-border: rgba(52, 211, 153, 0.2);
      --primary-text: #ffffff;
      --secondary-text: #a7f3d0;
      --badge-bg: rgba(52, 211, 153, 0.12);
    }
    body[data-theme="minimal-light"] {
      --bg-gradient: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
      --card-bg: rgba(255, 255, 255, 0.85);
      --card-border: rgba(203, 213, 225, 0.8);
      --card-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
      --primary-text: #0f172a;
      --secondary-text: #64748b;
      --badge-bg: rgba(0, 0, 0, 0.06);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
      user-select: none;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans TC", sans-serif;
    }

    body {
      width: 100vw;
      height: 100vh;
      overflow: hidden;
      background: var(--bg-gradient);
      color: var(--primary-text);
      position: relative;
      transition: background 0.4s ease;
    }

    /* 頂部輕量時鐘 */
    .top-bar {
      position: absolute;
      top: 20px;
      left: 50%;
      transform: translateX(-50%);
      text-align: center;
      pointer-events: none;
      z-index: 5;
    }
    .live-clock {
      font-size: 2.2rem;
      font-weight: 700;
      color: var(--primary-text);
      letter-spacing: -0.5px;
      font-feature-settings: "tnum";
      text-shadow: 0 4px 12px rgba(0,0,0,0.4);
    }
    .live-date {
      font-size: 0.85rem;
      color: var(--secondary-text);
      letter-spacing: 2px;
    }

    #canvas-workspace {
      width: 100vw;
      height: 100vh;
      position: absolute;
      top: 0;
      left: 0;
    }

    /* =========================================
       自適應卡片容器 (Container Query 架構)
       ========================================= */
    .board-card {
      position: absolute;
      background: var(--card-bg);
      border: 1px solid var(--card-border);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-radius: 24px;
      box-shadow: var(--card-shadow);
      display: flex;
      flex-direction: column;
      overflow: hidden;
      transition: border 0.2s, box-shadow 0.2s;
      container-type: size; /* 讓內部元件能根據卡片尺寸等比自適應 */
    }

    /* 分類主題色 */
    .board-card[data-cat="exam"] { --cat-color: #38bdf8; }
    .board-card[data-cat="sports"] { --cat-color: #f97316; }
    .board-card[data-cat="event"] { --cat-color: #ec4899; }
    .board-card[data-cat="life"] { --cat-color: #10b981; }

    .board-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: clamp(4px, 1.8cqh, 8px);
      background: var(--cat-color);
      z-index: 2;
    }

    .board-card.highlight {
      border: 1.8px solid #fbbf24;
      box-shadow: 0 15px 35px rgba(251, 191, 36, 0.25);
    }
    .board-card.highlight::before {
      background: #fbbf24;
      height: clamp(5px, 2.2cqh, 10px);
    }

    /* 卡片內部排版：使用容器單位 (cqw, cqh) */
    .card-content-box {
      width: 100%;
      height: 100%;
      padding: clamp(14px, 6cqw, 36px) clamp(16px, 7cqw, 40px);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .card-header-area {
      display: flex;
      flex-direction: column;
      gap: clamp(4px, 1.5cqh, 10px);
    }

    .card-title-row {
      display: flex;
      align-items: center;
      gap: clamp(8px, 2.5cqw, 16px);
    }

    .icon-wrapper {
      width: clamp(28px, 11cqw, 54px);
      height: clamp(28px, 11cqw, 54px);
      border-radius: clamp(8px, 2.5cqw, 14px);
      background: rgba(255, 255, 255, 0.08);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--cat-color);
      flex-shrink: 0;
    }
    .icon-wrapper svg {
      width: 60%;
      height: 60%;
    }
    .board-card.highlight .icon-wrapper {
      color: #fbbf24;
      background: rgba(251, 191, 36, 0.16);
    }

    .card-title {
      font-size: clamp(1rem, 6.5cqw, 2.2rem);
      font-weight: 600;
      color: var(--primary-text);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      line-height: 1.2;
    }

    .card-date {
      font-size: clamp(0.75rem, 4.2cqw, 1.15rem);
      color: var(--secondary-text);
      letter-spacing: 0.5px;
    }

    /* 倒數主核心：天數動態膨脹填滿中段 */
    .countdown-body {
      flex: 1;
      display: flex;
      align-items: baseline;
      justify-content: center;
      gap: clamp(4px, 1.5cqw, 12px);
      min-height: 0;
    }

    .countdown-digits {
      font-size: clamp(2.8rem, 24cqw, 14rem); /* 隨寬度與高度巨大化放大 */
      font-weight: 800;
      line-height: 0.95;
      letter-spacing: -2px;
      font-feature-settings: "tnum";
      color: var(--primary-text);
    }

    .board-card.highlight .countdown-digits {
      color: #fbbf24;
      text-shadow: 0 0 clamp(15px, 5cqw, 35px) rgba(251, 191, 36, 0.45);
    }

    .countdown-unit {
      font-size: clamp(0.9rem, 5.5cqw, 2.2rem);
      color: var(--secondary-text);
      font-weight: 500;
    }

    /* 底部狀態膠囊標籤 */
    .card-footer-status {
      align-self: center;
      font-size: clamp(0.7rem, 3.8cqw, 1.05rem);
      padding: clamp(4px, 1.5cqh, 8px) clamp(10px, 4cqw, 24px);
      border-radius: 999px;
      background: var(--badge-bg);
      color: var(--secondary-text);
      font-weight: 500;
      white-space: nowrap;
    }
    .board-card.highlight .card-footer-status {
      background: rgba(251, 191, 36, 0.15);
      color: #fbbf24;
    }

    /* 編輯排版模式樣式 */
    .is-editing .board-card {
      border: 1.5px dashed #38bdf8 !important;
      cursor: move;
    }
    .resize-handle {
      display: none;
      position: absolute;
      right: 2px;
      bottom: 2px;
      width: 24px;
      height: 24px;
      cursor: se-resize;
      background: linear-gradient(135deg, transparent 50%, rgba(56, 189, 248, 0.8) 50%);
      border-bottom-right-radius: 18px;
      z-index: 10;
    }
    .is-editing .resize-handle {
      display: block;
    }

    /* 編輯浮動狀態條 */
    .edit-banner {
      display: none;
      position: fixed;
      top: 16px;
      right: 20px;
      background: rgba(15, 23, 42, 0.95);
      border: 1px solid #38bdf8;
      backdrop-filter: blur(8px);
      padding: 8px 16px;
      border-radius: 12px;
      z-index: 1000;
      align-items: center;
      gap: 12px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    }
    .is-editing .edit-banner {
      display: flex;
    }

    /* 齒輪圖示 */
    .settings-trigger {
      position: fixed;
      bottom: 20px;
      right: 20px;
      width: 46px;
      height: 46px;
      border-radius: 50%;
      background: rgba(15, 23, 42, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.15);
      backdrop-filter: blur(8px);
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      color: #94a3b8;
      opacity: 0.25;
      transition: all 0.2s;
      z-index: 500;
    }
    .settings-trigger:hover {
      opacity: 1;
      transform: rotate(30deg);
      color: #fff;
    }

    /* 彈窗與抽屜 */
    .modal-backdrop {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.75);
      backdrop-filter: blur(10px);
      z-index: 2000;
      align-items: center;
      justify-content: center;
    }
    .modal-box {
      background: #1e293b;
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: 16px;
      padding: 28px;
      width: 320px;
      text-align: center;
      color: #fff;
    }
    .modal-box input {
      width: 100%;
      padding: 10px;
      border-radius: 8px;
      border: 1px solid #334155;
      background: #0f172a;
      color: #fff;
      font-size: 1.2rem;
      text-align: center;
      letter-spacing: 6px;
      margin: 15px 0 20px;
      outline: none;
    }
    .btn {
      padding: 8px 16px;
      border-radius: 8px;
      border: none;
      font-weight: 600;
      cursor: pointer;
      font-size: 0.85rem;
    }
    .btn-primary { background: #38bdf8; color: #0f172a; }
    .btn-secondary { background: #334155; color: #fff; }
    .btn-success { background: #10b981; color: #fff; }
    .btn-danger { background: #ef4444; color: #fff; }

    .admin-drawer {
      display: none;
      position: fixed;
      top: 0;
      right: 0;
      width: 520px;
      max-width: 92vw;
      height: 100vh;
      background: #0f172a;
      border-left: 1px solid #334155;
      box-shadow: -15px 0 40px rgba(0,0,0,0.6);
      z-index: 2100;
      flex-direction: column;
      color: #e2e8f0;
    }
    .drawer-header {
      padding: 20px;
      border-bottom: 1px solid #1e293b;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .drawer-content {
      padding: 20px;
      overflow-y: auto;
      flex: 1;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .theme-control-box {
      background: #1e293b;
      border: 1px solid #334155;
      border-radius: 10px;
      padding: 14px;
      display: flex;
      justify-content: space-between;
      align-items: center;
    }
    .item-row {
      background: #1e293b;
      border: 1px solid #334155;
      border-radius: 10px;
      padding: 14px;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .item-inputs {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
    }
    .item-row input, .item-row select, .theme-control-box select {
      background: #0f172a;
      border: 1px solid #334155;
      color: #fff;
      padding: 7px 10px;
      border-radius: 6px;
      font-size: 0.85rem;
    }
  </style>
</head>
<body data-theme="dark-slate">

  <!-- 頂部即時時鐘 -->
  <div class="top-bar">
    <div class="live-clock" id="liveClock">00:00:00</div>
    <div class="live-date" id="liveDate">LOADING CALENDAR...</div>
  </div>

  <!-- 自由自適應畫布 -->
  <div id="canvas-workspace"></div>

  <!-- 編輯狀態控制頂列 -->
  <div class="edit-banner" id="editBanner">
    <span style="font-size:0.85rem; color:#38bdf8;">✦ 自由排版中：拖動卡片改變位置，拉右下角角標縮放</span>
    <button class="btn btn-secondary" onclick="openAdminDrawer()">設定與項目</button>
    <button class="btn btn-success" onclick="exitEditMode()">完成並鎖定</button>
  </div>

  <!-- 右下角隱密齒輪 -->
  <div class="settings-trigger" onclick="openAuthModal()" title="排版設定">
    <svg width="22" height="22" fill="currentColor" viewBox="0 0 24 24">
      <path d="M19.14 12.94c.04-.3.06-.61.06-.94 0-.32-.02-.64-.07-.94l2.03-1.58c.18-.14.23-.41.12-.61l-1.92-3.32c-.12-.22-.37-.29-.59-.22l-2.39.96c-.5-.38-1.03-.7-1.62-.94l-.36-2.54c-.04-.24-.24-.41-.48-.41h-3.84c-.24 0-.43.17-.47.41l-.36 2.54c-.59.24-1.13.57-1.62.94l-2.39-.96c-.22-.08-.47 0-.59.22L2.74 8.87c-.12.21-.08.47.12.61l2.03 1.58c-.05.3-.09.63-.09.94s.02.64.07.94l-2.03 1.58c-.18.14-.23.41-.12.61l1.92 3.32c.12.22.37.29.59.22l2.39-.96c.5.38 1.03.7 1.62.94l.36 2.54c.05.24.24.41.48.41h3.84c.24 0 .44-.17.47-.41l.36-2.54c.59-.24 1.13-.56 1.62-.94l2.39.96c.22.08.47 0 .59-.22l1.92-3.32c.12-.22.07-.47-.12-.61l-2.01-1.58zM12 15.6c-1.98 0-3.6-1.62-3.6-3.6s1.62-3.6 3.6-3.6 3.6 1.62 3.6 3.6-1.62 3.6-3.6 3.6z"/>
    </svg>
  </div>

  <!-- 密碼 Modal -->
  <div class="modal-backdrop" id="authModal">
    <div class="modal-box">
      <h3>進入看板管理</h3>
      <p style="color:#94a3b8; font-size:0.8rem; margin-top:6px;">請輸入管理員密碼</p>
      <input type="password" id="authPassword" placeholder="PIN" maxlength="6" onkeydown="if(event.key==='Enter') verifyPassword()">
      <div style="display:flex; justify-content:center; gap:8px;">
        <button class="btn btn-secondary" onclick="closeAuthModal()">取消</button>
        <button class="btn btn-primary" onclick="verifyPassword()">解鎖排版</button>
      </div>
    </div>
  </div>

  <!-- 側拉管理抽屜 -->
  <div class="admin-drawer" id="adminDrawer">
    <div class="drawer-header">
      <h3>看板設定與項目管理</h3>
      <button class="btn btn-secondary" onclick="closeAdminDrawer()">關閉</button>
    </div>
    
    <div class="drawer-content">
      <!-- 主題風格選擇區塊 -->
      <div class="theme-control-box">
        <span style="font-weight:600;">整體版面風格</span>
        <select id="themeSelect" onchange="changeTheme(this.value)">
          <option value="dark-slate">深邃板岩灰 (Dark Slate)</option>
          <option value="midnight-purple">星夜紫韻 (Midnight Purple)</option>
          <option value="forest-calm">靜謐青綠 (Forest Calm)</option>
          <option value="minimal-light">晨光清透 (Minimal Light)</option>
        </select>
      </div>

      <div style="display:flex; justify-content:space-between; align-items:center; margin-top:8px;">
        <span style="font-size:0.85rem; color:#94a3b8;">倒數項目清單</span>
        <button class="btn btn-primary" onclick="addNewEvent()">+ 新增卡片</button>
      </div>

      <div id="editorItemList" style="display:flex; flex-direction:column; gap:10px;"></div>
    </div>

    <div style="padding:16px; border-top:1px solid #1e293b; display:flex; justify-content:flex-end;">
      <button class="btn btn-success" onclick="saveEditorList()">儲存並發布</button>
    </div>
  </div>

  <script>
    // 精緻 SVG 向量圖示庫
    const ICONS = {
      exam: `<svg fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24"><path d="M4 19.5A2.5 2.5 0 0 1 6.5 17H20"></path><path d="M6.5 2H20v20H6.5A2.5 2.5 0 0 1 4 19.5v-15A2.5 2.5 0 0 1 6.5 2z"></path></svg>`,
      sports: `<svg fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24"><path d="M6 9H4.5a2.5 2.5 0 0 1 0-5H6"></path><path d="M18 9h1.5a2.5 2.5 0 0 0 0-5H18"></path><path d="M4 22h16"></path><path d="M10 14.66V17c0 .55-.45 1-1 1H7v4h10v-4h-2c-.55 0-1-.45-1-1v-2.34c3.08-.63 5.4-3.3 5.4-6.66V4H4v4c0 3.36 2.32 6.03 5.4 6.66z"></path></svg>`,
      event: `<svg fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24"><path d="M4 15s1-1 4-1 5 2 8 2 4-1 4-1V3s-1 1-4 1-5-2-8-2-4 1-4 1z"></path><line x1="4" y1="22" x2="4" y2="15"></line></svg>`,
      life: `<svg fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24"><circle cx="12" cy="12" r="10"></circle><polyline points="12 6 12 12 16 14"></polyline></svg>`
    };

    // 初始預設資料
    const DEFAULT_DATA = {
      theme: "dark-slate",
      cards: [
        { id: '1', title: "第一次定期評量", date: "2026-10-15", cat: "exam", highlight: false, x: 100, y: 150, w: 300, h: 250 },
        { id: '2', title: "校慶運動大會", date: "2026-11-20", cat: "sports", highlight: false, x: 100, y: 430, w: 300, h: 250 },
        { id: '3', title: "國中教育會考", date: "2027-05-15", cat: "exam", highlight: true, x: 440, y: 150, w: 420, h: 530 }
      ]
    };

    let appState = loadAppData();
    let isEditing = false;

    function loadAppData() {
      const saved = localStorage.getItem("classroom_dashboard_data");
      return saved ? JSON.parse(saved) : DEFAULT_DATA;
    }

    function saveAppData() {
      localStorage.setItem("classroom_dashboard_data", JSON.stringify(appState));
    }

    // 切換主題
    function changeTheme(themeName) {
      appState.theme = themeName;
      document.body.setAttribute("data-theme", themeName);
    }

    // 渲染整個自由畫布
    function renderBoard() {
      document.body.setAttribute("data-theme", appState.theme);
      const ws = document.getElementById("canvas-workspace");
      ws.innerHTML = "";

      const today = new Date();
      today.setHours(0,0,0,0);

      appState.cards.forEach(card => {
        const target = new Date(card.date + "T00:00:00");
        const diffDays = Math.ceil((target - today) / (1000 * 60 * 60 * 24));
        const displayDays = diffDays >= 0 ? diffDays : 0;
        const badgeText = diffDays > 0 ? `倒數 ${diffDays} 天` : (diffDays === 0 ? "🔥 就是今天" : "已圓滿結束");

        const el = document.createElement("div");
        el.className = `board-card ${card.highlight ? 'highlight' : ''}`;
        el.id = `card-${card.id}`;
        el.setAttribute("data-cat", card.cat);
        el.style.left = `${card.x}px`;
        el.style.top = `${card.y}px`;
        el.style.width = `${card.w}px`;
        el.style.height = `${card.h}px`;

        el.innerHTML = `
          <div class="card-content-box">
            <div class="card-header-area">
              <div class="card-title-row">
                <div class="icon-wrapper">${ICONS[card.cat] || ICONS.life}</div>
                <div class="card-title">${card.title}</div>
              </div>
              <div class="card-date">${card.date.replace(/-/g, '.')}</div>
            </div>
            
            <div class="countdown-body">
              <span class="countdown-digits">${displayDays}</span>
              <span class="countdown-unit">天</span>
            </div>
            
            <div class="card-footer-status">${badgeText}</div>
          </div>
          <div class="resize-handle"></div>
        `;

        makeDraggable(el, card);
        makeResizable(el.querySelector('.resize-handle'), card, el);

        ws.appendChild(el);
      });
    }

    // 拖動定位
    function makeDraggable(el, cardData) {
      let isDragging = false;
      let startX, startY, initLeft, initTop;

      el.addEventListener('mousedown', (e) => {
        if (!isEditing || e.target.classList.contains('resize-handle')) return;
        isDragging = true;
        startX = e.clientX;
        startY = e.clientY;
        initLeft = el.offsetLeft;
        initTop = el.offsetTop;
        el.style.zIndex = 100;

        function onMouseMove(e) {
          if (!isDragging) return;
          const newX = Math.max(0, Math.min(window.innerWidth - el.offsetWidth, initLeft + (e.clientX - startX)));
          const newY = Math.max(0, Math.min(window.innerHeight - el.offsetHeight, initTop + (e.clientY - startY)));
          el.style.left = `${newX}px`;
          el.style.top = `${newY}px`;
          cardData.x = newX;
          cardData.y = newY;
        }

        function onMouseUp() {
          isDragging = false;
          el.style.zIndex = '';
          window.removeEventListener('mousemove', onMouseMove);
          window.removeEventListener('mouseup', onMouseUp);
          saveAppData();
        }

        window.addEventListener('mousemove', onMouseMove);
        window.addEventListener('mouseup', onMouseUp);
      });
    }

    // 右下角拖拉自適應縮放
    function makeResizable(handle, cardData, cardEl) {
      let isResizing = false;
      let startW, startH, startX, startY;

      handle.addEventListener('mousedown', (e) => {
        if (!isEditing) return;
        e.stopPropagation();
        isResizing = true;
        startX = e.clientX;
        startY = e.clientY;
        startW = cardEl.offsetWidth;
        startH = cardEl.offsetHeight;

        function onMouseMove(e) {
          if (!isResizing) return;
          // 限制最小尺寸，避免過小破版
          const newW = Math.max(200, startW + (e.clientX - startX));
          const newH = Math.max(160, startH + (e.clientY - startY));

          cardEl.style.width = `${newW}px`;
          cardEl.style.height = `${newH}px`;
          cardData.w = newW;
          cardData.h = newH;
          // container query 會自動完成內部文字與數字等比自適應放大，不需手動換算
        }

        function onMouseUp() {
          isResizing = false;
          window.removeEventListener('mousemove', onMouseMove);
          window.removeEventListener('mouseup', onMouseUp);
          saveAppData();
        }

        window.addEventListener('mousemove', onMouseMove);
        window.addEventListener('mouseup', onMouseUp);
      });
    }

    // 密碼與狀態
    function openAuthModal() {
      document.getElementById("authPassword").value = "";
      document.getElementById("authModal").style.display = "flex";
      document.getElementById("authPassword").focus();
    }
    function closeAuthModal() {
      document.getElementById("authModal").style.display = "none";
    }
    function verifyPassword() {
      if (document.getElementById("authPassword").value === "902") {
        closeAuthModal();
        enterEditMode();
      } else {
        alert("密碼錯誤");
      }
    }

    function enterEditMode() {
      isEditing = true;
      document.body.classList.add("is-editing");
    }

    function exitEditMode() {
      isEditing = false;
      document.body.classList.remove("is-editing");
      saveAppData();
    }

    // 抽屜面板控制
    function openAdminDrawer() {
      document.getElementById("themeSelect").value = appState.theme;
      renderDrawerEditor();
      document.getElementById("adminDrawer").style.display = "flex";
    }
    function closeAdminDrawer() {
      document.getElementById("adminDrawer").style.display = "none";
    }

    function renderDrawerEditor() {
      const container = document.getElementById("editorItemList");
      container.innerHTML = "";
      appState.cards.forEach((item, index) => {
        const row = document.createElement("div");
        row.className = "item-row";
        row.innerHTML = `
          <div class="item-inputs">
            <input type="text" value="${item.title}" placeholder="名稱" onchange="appState.cards[${index}].title=this.value">
            <input type="date" value="${item.date}" onchange="appState.cards[${index}].date=this.value">
          </div>
          <div style="display:flex; justify-content:space-between; align-items:center;">
            <select onchange="appState.cards[${index}].cat=this.value">
              <option value="exam" ${item.cat==='exam'?'selected':''}>學業考試 (書本)</option>
              <option value="sports" ${item.cat==='sports'?'selected':''}>運動競賽 (獎盃)</option>
              <option value="event" ${item.cat==='event'?'selected':''}>校慶活動 (旗幟)</option>
              <option value="life" ${item.cat==='life'?'selected':''}>常態生活 (時鐘)</option>
            </select>
            <label style="font-size:0.8rem; color:#cbd5e1; display:flex; align-items:center; gap:4px; cursor:pointer;">
              <input type="checkbox" ${item.highlight ? 'checked':''} onchange="appState.cards[${index}].highlight=this.checked"> 重要高亮
            </label>
            <button class="btn btn-danger" style="padding:4px 8px;" onclick="removeCard(${index})">刪除</button>
          </div>
        `;
        container.appendChild(row);
      });
    }

    function addNewEvent() {
      const todayStr = new Date().toISOString().split('T')[0];
      appState.cards.push({
        id: String(Date.now()),
        title: "新倒數目標",
        date: todayStr,
        cat: "exam",
        highlight: false,
        x: 100 + (appState.cards.length * 30),
        y: 200,
        w: 280,
        h: 220
      });
      renderDrawerEditor();
    }

    function removeCard(idx) {
      appState.cards.splice(idx, 1);
      renderDrawerEditor();
    }

    function saveEditorList() {
      saveAppData();
      renderBoard();
      closeAdminDrawer();
    }

    // 即時時鐘
    function updateClock() {
      const now = new Date();
      const h = String(now.getHours()).padStart(2, '0');
      const m = String(now.getMinutes()).padStart(2, '0');
      const s = String(now.getSeconds()).padStart(2, '0');
      document.getElementById("liveClock").textContent = `${h}:${m}:${s}`;
      document.getElementById("liveDate").textContent = now.toLocaleDateString('zh-TW', {
        year: 'numeric', month: 'long', day: 'numeric', weekday: 'long'
      });
    }
    setInterval(updateClock, 1000);
    updateClock();

    // 啟動渲染
    renderBoard();
  </script>
</body>
</html>