/* ===== 像素风格基础 ===== */
  @font-face {
    font-family: 'Pixel';
    src: url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');
  }

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

  :root {
    --bg-deep: #1a1c2c;
    --bg-dark: #2b2d42;
    --panel: #3a3f5c;
    --panel-light: #4a5078;
    --accent: #ffcd75;
    --accent-2: #ef7d57;
    --green: #38b764;
    --red: #b13e53;
    --blue: #41a6f6;
    --cyan: #73eff7;
    --purple: #a44bbd;
    --white: #f4f4f4;
    --border: #11111b;
    --shadow: #0d0d15;
    --font-scale: 1.15; /* 默认字体缩放倍率 */
  }

  /* 字体缩放：zoom 全局缩放所有 px/em 单位 */
  body { zoom: var(--font-scale); }

  html, body {
    min-height: 100%;
    font-family: 'Press Start 2P', 'Courier New', monospace;
    background: var(--bg-deep);
    color: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: none;
    image-rendering: pixelated;
  }

  body {
    background-image:
      linear-gradient(rgba(26,28,44,0.9), rgba(26,28,44,0.9)),
      radial-gradient(circle at 20% 30%, rgba(65,166,246,0.08) 0%, transparent 40%),
      radial-gradient(circle at 80% 70%, rgba(173,75,189,0.08) 0%, transparent 40%);
  }

  /* ===== 像素边框工具类 ===== */
  .pixel-box {
    border: 4px solid var(--border);
    box-shadow:
      0 0 0 4px var(--panel),
      8px 8px 0 0 var(--shadow);
    background: var(--panel);
  }

  .btn {
    font-family: inherit;
    font-size: clamp(12px, 2.8vw, 16px);
    padding: 16px 24px;
    background: var(--panel-light);
    color: var(--white);
    border: 3px solid var(--border);
    box-shadow: 4px 4px 0 0 var(--shadow);
    cursor: pointer;
    transition: transform 0.08s, background 0.15s;
    text-align: center;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
  }
  .btn:hover { background: var(--accent); color: var(--border); }
  .btn:active { transform: translate(4px, 4px); box-shadow: 0 0 0 0 var(--shadow); }
  .btn:disabled { opacity: 0.4; cursor: not-allowed; }

  /* 小按钮（游戏战绩页用） */
  .btn-sm {
    font-family: inherit;
    font-size: clamp(9px, 1.8vw, 11px);
    padding: 8px 12px;
    background: var(--panel-light);
    color: var(--white);
    border: 2px solid var(--border);
    box-shadow: 3px 3px 0 0 var(--shadow);
    cursor: pointer;
    transition: transform 0.08s, background 0.15s;
    text-align: center;
    user-select: none;
    flex: 1;
  }
  .btn-sm:hover { background: var(--accent); color: var(--border); }
  .btn-sm:active { transform: translate(3px, 3px); box-shadow: none; }

  /* IQ 答题选项按钮 */
  .iq-opt { font-family: inherit; font-size: clamp(11px, 2.3vw, 14px); padding: 10px 20px; background: var(--panel-light); color: var(--white); border: 2px solid var(--border); box-shadow: 3px 3px 0 0 var(--shadow); cursor: pointer; transition: all 0.08s; flex: 1; min-width: 60px; text-align: center; }
  .iq-opt:hover { background: var(--cyan); color: var(--border); transform: translateY(-1px); }
  .iq-opt:active { transform: translate(3px, 3px); box-shadow: none; }

  .btn-accent { background: var(--accent-2); color: var(--white); }
  .btn-accent:hover { background: var(--accent); color: var(--border); }

  /* ===== 主容器（居中适配） ===== */
  #app {
    width: 100%;
    min-height: 100vh;
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    position: relative;
  }

  .screen {
    width: 100%;
    max-height: 100%;
    display: none;
    flex-direction: column;
    animation: fadeIn 0.25s ease;
  }
  .screen.active { display: flex; }

  @keyframes fadeIn {
    from { opacity: 0; transform: scale(0.96); }
    to { opacity: 1; transform: scale(1); }
  }

  /* ===== 加载画面 ===== */
  #loading {
    position: fixed;
    inset: 0;
    background: var(--bg-deep);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
    z-index: 100;
    transition: opacity 0.5s;
  }
  #loading.hide { opacity: 0; pointer-events: none; }

  .loader-title {
    font-size: clamp(14px, 4vw, 22px);
    color: var(--accent);
    text-shadow: 3px 3px 0 var(--shadow);
    text-align: center;
    line-height: 1.8;
  }
  .loader-sub {
    font-size: clamp(10px, 2vw, 12px);
    color: var(--cyan);
    letter-spacing: 1px;
  }
  .loading-bar-wrap {
    width: 240px;
    max-width: 70vw;
    height: 24px;
    border: 4px solid var(--border);
    background: var(--bg-dark);
    box-shadow: 4px 4px 0 var(--shadow);
    position: relative;
  }
  .loading-bar {
    height: 100%;
    width: 0%;
    background: repeating-linear-gradient(90deg, var(--green) 0 8px, var(--accent) 8px 16px);
    transition: width 0.15s;
  }
  .loading-pct {
    margin-top: 4px;
    font-size: clamp(10px, 2vw, 12px);
    color: var(--white);
  }
  .blink { animation: blink 1s steps(2) infinite; }
  @keyframes blink { 50% { opacity: 0; } }

  /* ===== 主菜单 ===== */
  .menu-title {
    text-align: center;
    line-height: 1.6;
    margin-bottom: 28px;
  }
  .menu-title .big {
    font-size: clamp(16px, 5vw, 28px);
    color: var(--accent);
    text-shadow: 4px 4px 0 var(--shadow);
    display: block;
    margin-bottom: 10px;
  }
  .menu-title .ver { font-size: clamp(11px, 2.5vw, 13px); color: var(--cyan); }

  .menu-buttons {
    display: flex;
    flex-direction: column;
    gap: 14px;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
  }
  .menu-hint {
    text-align: center;
    font-size: clamp(10px, 1.8vw, 12px);
    color: #8888aa;
    margin-top: 20px;
    line-height: 1.8;
  }

  /* ===== 通用面板（优化间距） ===== */
  .panel {
    background: var(--panel);
    border: 4px solid var(--border);
    box-shadow: 6px 6px 0 var(--shadow);
    padding: 16px;
    width: 100%;
    overflow-y: auto;
  }
  .panel-title {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    font-size: clamp(12px, 3.5vw, 16px);
    color: var(--accent);
    text-align: center;
    margin-bottom: 12px;
    text-shadow: 2px 2px 0 var(--shadow);
  }
  .panel-sub {
    font-size: clamp(10px, 2vw, 12px);
    color: var(--cyan);
    text-align: center;
    margin-bottom: 12px;
    line-height: 1.8;
  }

  /* ===== 游戏设置 ===== */
  .setting-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 16px 0;
    flex-wrap: wrap;
  }
  .setting-row label { font-size: clamp(11px, 2vw, 13px); color: var(--white); }
  .setting-input {
    font-family: inherit;
    font-size: 14px;
    width: 120px;
    padding: 10px;
    background: var(--bg-dark);
    color: var(--accent);
    border: 3px solid var(--border);
    text-align: center;
  }
  .setting-input:focus { outline: none; border-color: var(--accent); }

  /* ===== 英雄选择 ===== */
  .hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    margin-bottom: 18px;
  }
  .hero-card {
    background: var(--bg-dark);
    border: 3px solid var(--border);
    padding: 16px;
    cursor: pointer;
    transition: border-color 0.15s, transform 0.08s;
  }
  .hero-card:hover { border-color: var(--accent); }
  .hero-card.selected { border-color: var(--green); background: var(--panel-light); }
  .hero-card .hname { font-size: 12px; color: var(--accent); margin-bottom: 8px; }
  .hero-card .hskill { font-size: clamp(10px, 2vw, 12px); color: var(--cyan); line-height: 1.8; }

  /* ===== 游戏进行 ===== */
  .game-top {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    font-size: 9px;
    margin-bottom: 16px;
    flex-wrap: wrap;
  }
  .stat {
    background: var(--bg-dark);
    border: 2px solid rgba(255,255,255,0.08);
    padding: 8px 8px;
    flex: 1;
    text-align: center;
    min-width: 65px;
  }
  .stat .slabel { color: #9998bb; font-size: clamp(9px, 1.8vw, 11px); display: block; margin-bottom: 3px; }
  .stat .sval { color: var(--accent); font-size: clamp(11px, 2.2vw, 13px); }

  .rules {
    font-size: clamp(10px, 2vw, 12px);
    color: #aaaacc;
    line-height: 1.9;
    background: var(--bg-dark);
    border: 2px solid rgba(255,255,255,0.08);
    padding: 12px;
    margin-bottom: 14px;
  }
  .rules .rnum { color: var(--accent); }

  .guess-input-row {
    display: flex;
    gap: 10px;
    margin-bottom: 12px;
  }
  .guess-input {
    flex: 1;
    font-family: inherit;
    font-size: 16px;
    padding: 14px;
    background: var(--bg-dark);
    color: var(--accent);
    border: 3px solid var(--border);
    text-align: center;
  }
  .guess-input:focus { outline: none; border-color: var(--accent); }

  .feedback {
    min-height: 56px;
    font-size: clamp(11px, 2.2vw, 13px);
    line-height: 1.8;
    padding: 10px;
    background: var(--bg-dark);
    border: 2px solid rgba(255,255,255,0.08);
    margin-bottom: 10px;
    overflow-y: auto;
  }
  .fb-high { color: var(--red); }
  .fb-low { color: var(--blue); }
  .fb-win { color: var(--green); }
  .fb-info { color: var(--cyan); }

  .attempts-dots {
    display: flex;
    gap: 6px;
    justify-content: center;
    margin-bottom: 14px;
    flex-wrap: wrap;
  }
  .dot {
    width: 16px; height: 16px;
    border: 2px solid var(--border);
    background: var(--bg-dark);
  }
  .dot.used { background: var(--accent-2); }
  .dot.win { background: var(--green); }

  /* ===== 源码查看 ===== */
  #srcScreen .panel { padding: 0; }
  .src-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
    padding: 12px 16px;
  }
  .src-head .panel-title { padding: 0; margin: 0; }
  .src-head .btn-sm { flex: 0 0 auto; }
  #srcScreen .panel-title {
    margin-bottom: 8px;
    padding: 10px 16px;
    min-height: auto;
    font-size: clamp(11px, 2.8vw, 14px);
  }
  .src-scroll {
    background: #14151f;
    border: 3px solid var(--border);
    max-height: 55vh;
    overflow: auto;
    padding: 16px;
  }
  pre.src-code {
    font-family: 'Courier New', monospace;
    font-size: 11px;
    line-height: 1.5;
    color: #c8c8e0;
    white-space: pre;
    tab-size: 4;
  }
  .src-meta {
    text-align: center;
    padding: 16px;
    font-size: clamp(11px, 2.2vw, 13px);
    color: var(--cyan);
    line-height: 2;
    border-top: 3px solid var(--border);
  }
  .src-meta .creator { color: var(--accent); font-size: clamp(14px, 3vw, 16px); }
  .src-meta .site { color: var(--green); }

  /* ===== 底部操作 ===== */
  .action-bar {
    display: flex;
    gap: 10px;
    margin-top: 16px;
    flex-wrap: wrap;
  }
  .action-bar .btn { flex: 1; min-width: 120px; }

  .back-btn {
    position: absolute;
    top: 8px;
    left: 8px;
    font-size: clamp(8px, 1.5vw, 10px);
    padding: 8px 12px;
  }

  /* ===== 字体大小滑块 ===== */
  .font-slider-wrap {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 2px dashed var(--border);
  }
  .font-slider-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
  }
  .font-slider-label span { font-size: clamp(10px, 2vw, 13px); color: var(--cyan); }
  .font-slider-label b { color: var(--accent); }
  input[type=range] {
    -webkit-appearance: none;
    width: 100%;
    height: 10px;
    background: var(--bg-dark);
    border: 2px solid var(--border);
    outline: none;
    cursor: pointer;
  }
  input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 22px; height: 22px;
    background: var(--green);
    border: 3px solid var(--border);
    box-shadow: 2px 2px 0 var(--shadow);
    cursor: pointer;
  }
  input[type=range]::-moz-range-thumb {
    width: 22px; height: 22px;
    background: var(--green);
    border: 3px solid var(--border);
    box-shadow: 2px 2px 0 var(--shadow);
    cursor: pointer;
  }

  /* ===== 编程经历折叠区 ===== */
  .docx-section {
    border-top: 3px solid var(--border);
    background: var(--bg-dark);
  }
  .docx-toggle {
    width: 100%;
    text-align: center;
    padding: 10px;
    background: var(--panel-light);
    border: none;
    border-bottom: 2px solid var(--border);
    color: var(--cyan);
    font-family: inherit;
    font-size: clamp(9px, 2vw, 11px);
    cursor: pointer;
    user-select: none;
  }
  .docx-toggle:hover { background: var(--accent); color: var(--border); }
  .docx-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    padding: 0 14px;
  }
  .docx-body.open { max-height: 300px; overflow-y: auto; padding: 14px; }
  .docx-body p {
    font-size: clamp(9px, 1.8vw, 11px);
    line-height: 1.9;
    color: #bbbccd;
    margin-bottom: 8px;
    font-family: 'Courier New', monospace;
  }

  /* ===== 弹窗 ===== */
  .overlay {
    position: fixed;
    inset: 0;
    background: rgba(13,13,21,0.85);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 50;
    padding: 16px;
  }
  .overlay.active { display: flex; }
  .modal {
    background: var(--panel);
    border: 4px solid var(--border);
    box-shadow: 8px 8px 0 var(--shadow);
    padding: 24px;
    max-width: 520px;
    width: 90vw;
    text-align: center;
  }
  .modal h3 {
    font-size: clamp(12px, 3vw, 15px);
    color: var(--accent);
    margin-bottom: 16px;
    text-shadow: 2px 2px 0 var(--shadow);
    line-height: 1.6;
  }
  .modal p { font-size: clamp(10px, 2vw, 13px); line-height: 2; color: var(--white); margin-bottom: 8px; }
  .modal .modal-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; justify-content: center; }
  .modal .modal-actions .btn {
    flex: 1 1 100px;
    min-width: 90px;
    white-space: normal;
    line-height: 1.4;
    font-size: clamp(9px, 1.8vw, 11px);
    padding: 12px 10px;
  }

  /* ===== 英雄详细（减少边框嵌套） ===== */
  .hero-detail {
    background: var(--bg-dark);
    border: 2px solid var(--border);
    padding: 12px;
    margin-bottom: 10px;
  }
  .hero-detail .hd-name { font-size: 12px; color: var(--accent); margin-bottom: 10px; }
  .hero-detail .hd-skill { font-size: clamp(10px, 2vw, 12px); color: var(--cyan); line-height: 2; }

  /* ===== 游戏管理（优化版：减少嵌套框、统一视觉） ===== */
  .data-tabs {
    display: flex;
    gap: 6px;
    margin-bottom: 14px;
    flex-wrap: wrap;
  }
  .tab-btn {
    font-family: inherit;
    font-size: clamp(10px, 2.2vw, 12px);
    padding: 8px 14px;
    background: var(--bg-dark);
    color: #8888aa;
    border: 2px solid var(--border);
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    transition: all 0.15s;
  }
  .tab-btn:hover { background: var(--panel-light); color: var(--white); }
  .tab-btn.active {
    background: var(--accent-2);
    color: var(--white);
    border-color: var(--accent);
  }
  .tab-content { display: none; }
  .tab-content.active { display: block; animation: fadeIn 0.2s ease; }

  /* 框案卡片 — 扁平化，少嵌套 */
  .profile-card {
    background: var(--bg-dark);
    border: 2px solid rgba(255,255,255,0.08);
    padding: 14px;
    text-align: center;
  }

  /* 头像选择器 */
  .avatar-picker-wrap {
    margin-bottom: 14px;
  }
  .avatar-picker-label {
    font-size: clamp(10px, 2vw, 12px);
    color: var(--cyan);
    margin-bottom: 8px;
  }
  .avatar-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 6px;
  }
  .avatar-opt {
    width: 44px; height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    background: var(--panel);
    border: 2px solid var(--border);
    cursor: pointer;
    transition: all 0.1s;
    image-rendering: pixelated;
    user-select: none;
  }
  .avatar-opt:hover { border-color: var(--accent); transform: translateY(-2px); }
  .avatar-opt.selected {
    border-color: var(--green);
    background: var(--panel-light);
    box-shadow: 0 0 0 2px var(--green);
  }
  .profile-avatar-lg {
    width: 56px; height: 56px;
    background: var(--panel-light);
    border: 2px solid var(--border);
    margin: 0 auto 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    image-rendering: pixelated;
  }
  .profile-name { margin-bottom: 12px; }
  .profile-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 6px;
    margin-bottom: 14px;
  }
  .ps-item {
    background: var(--panel);
    border: 1px solid rgba(255,255,255,0.08);
    padding: 8px 4px;
    text-align: center;
  }
  .ps-item b { display: block; font-size: clamp(9px, 1.8vw, 11px); color: #9998bb; margin-bottom: 3px; }
  .ps-item span { font-size: clamp(12px, 2.3vw, 15px); color: var(--accent); }

  /* ===== 头像选择弹面板 ===== */
  #avatarModal {
    display:none;
    position:fixed;
    inset:0;z-index:300;
    background:rgba(0,0,0,0.8);
    align-items:center;justify-content:center;
    padding:20px;
    animation:fadeIn 0.15s ease;
  }
  #avatarModal.active{display:flex;}
  .avatar-modal-box{
    background:var(--panel);
    border:4px solid var(--border);
    box-shadow:8px 8px 0 var(--shadow);
    padding:20px;
    max-width:420px;width:90%;
    text-align:center;
  }
  .avatar-modal-title{
    color:var(--accent);font-size:clamp(13px,3vw,16px);
    margin-bottom:14px;text-shadow:2px 2px 0 var(--shadow);
  }
  .avatar-modal-grid{
    display:flex;flex-wrap:wrap;gap:10px;
    justify-content:center;margin-bottom:16px;
  }
  .avatar-modal-opt{
    width:50px;height:50px;
    display:flex;align-items:center;justify-content:center;
    font-size:28px;background:var(--bg-dark);
    border:2px solid var(--border);cursor:pointer;
    transition:all 0.1s;image-rendering:pixelated;
  }
  .avatar-modal-opt:hover{border-color:var(--accent);transform:scale(1.1);}
  .avatar-modal-opt.selected{border-color:var(--green);background:var(--panel-light);}

  /* 历史列表 / 排行榜 — 减少边框嵌套 */
  .history-list, .rank-list {
    max-height: 42vh;
    overflow-y: auto;
    background: var(--bg-dark);
    border: 2px solid var(--border);
  }
  .empty-hint {
    text-align: center;
    padding: 24px;
    color: #666688;
    font-size: clamp(10px, 2vw, 12px);
  }
  .h-row, .r-row {
    display: grid;
    grid-template-columns: 40px 1fr 80px 80px 60px;
    gap: 4px;
    padding: 8px 10px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    align-items: center;
    font-size: clamp(10px, 2vw, 12px);
  }
  .h-row:hover, .r-row:hover { background: var(--panel-light); }
  .h-row.header, .r-row.header {
    background: var(--panel);
    color: var(--cyan);
    position: sticky;
    top: 0;
    z-index: 2;
  }
  .h-row .idx, .r-row .idx { color: #667788; text-align: center; }
  .r-row.gold { color: var(--gold, #ffd700) !important; }
  .r-row.silver { color: var(--silver, #c0c0c0) !important; }
  .r-row.bronze { color: var(--bronze, #cd7f32) !important; }
  .h-score { color: var(--green); }
  .h-gold { color: var(--accent); }
  .h-gem { color: var(--purple); }

  /* 截图预览区 */
  #screenshotPreview {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(0,0,0,0.85);
    align-items: center;
    justify-content: center;
    padding: 20px;
  }
  #screenshotPreview.active { display: flex; }
  #screenshotPreview img {
    max-width: 90vw;
    max-height: 85vh;
    border: 4px solid var(--border);
    box-shadow: 8px 8px 0 var(--shadow);
  }

  /* ===== 响应式：平板/手机 ===== */
  @media (max-width: 480px) {
    .btn { padding: 12px 14px; }
    .menu-buttons { gap: 10px; }
    .game-top { font-size: 9px; }
    .stat { min-width: 60px; padding: 6px; }
    .guess-input { font-size: 14px; padding: 12px; }
    .src-scroll { max-height: 45vh; }
    pre.src-code { font-size: clamp(8px, 2.5vw, 11px); }
    .back-btn { font-size: 7px; padding: 6px 10px; }
  }

  @media (min-width: 768px) {
    .hero-grid { grid-template-columns: 1fr; } /* 保持单列，信息更清晰 */
  }

  /* 滚动条像素化 */
  ::-webkit-scrollbar { width: 10px; height: 10px; }
  ::-webkit-scrollbar-track { background: var(--bg-dark); }
  ::-webkit-scrollbar-thumb { background: var(--panel-light); border: 2px solid var(--border); }