/* ============================================================
   汉堡网络技术练习网 - 游戏化闯关版样式
   ============================================================ */
* { margin:0; padding:0; box-sizing:border-box; }
:root {
    --bg-primary:#0a0e1a; --bg-secondary:#111827;
    --bg-card:rgba(17,24,39,0.85); --bg-card-hover:rgba(30,41,59,0.95);
    --text-primary:#e2e8f0; --text-secondary:#94a3b8; --text-muted:#64748b;
    --accent-cyan:#00d4ff; --accent-purple:#a855f7; --accent-pink:#ec4899;
    --accent-green:#10b981; --accent-red:#ef4444; --accent-yellow:#f59e0b;
    --border-color:rgba(0,212,255,0.2);
    --font-main:'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
}
html,body { height:100%; font-family:var(--font-main); background:var(--bg-primary); color:var(--text-primary); overflow-x:hidden; }
a { color:var(--accent-cyan); text-decoration:none; transition:color .3s; }
a:hover { color:var(--accent-purple); }

/* 背景 */
.bg-grid { position:fixed; top:0;left:0; width:100%;height:100%;
    background-image:linear-gradient(rgba(0,212,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(0,212,255,.03) 1px,transparent 1px);
    background-size:50px 50px; pointer-events:none; z-index:0; animation:gridMove 20s linear infinite; }
@keyframes gridMove { 0%{background-position:0 0} 100%{background-position:50px 50px} }
.bg-glow { position:fixed; top:-50%;left:-50%; width:200%;height:200%;
    background:radial-gradient(circle at 30% 20%,rgba(168,85,247,.08) 0%,transparent 40%),
               radial-gradient(circle at 70% 80%,rgba(0,212,255,.08) 0%,transparent 40%),
               radial-gradient(circle at 50% 50%,rgba(236,72,153,.05) 0%,transparent 50%);
    pointer-events:none; z-index:0; animation:glowPulse 8s ease-in-out infinite alternate; }
@keyframes glowPulse { 0%{opacity:.6;transform:scale(1)} 100%{opacity:1;transform:scale(1.05)} }
.bg-particles { position:fixed; top:0;left:0; width:100%;height:100%; pointer-events:none; z-index:0; overflow:hidden; }
.particle { position:absolute; width:3px;height:3px; background:var(--accent-cyan); border-radius:50%;
    box-shadow:0 0 6px var(--accent-cyan); animation:particleFloat linear infinite; }
@keyframes particleFloat { 0%{transform:translateY(100vh) scale(0);opacity:0} 10%{opacity:1} 90%{opacity:1} 100%{transform:translateY(-10vh) scale(1);opacity:0} }

/* 导航 */
.top-nav { position:relative; z-index:10; display:flex; justify-content:space-between; align-items:center;
    padding:12px 30px; background:rgba(10,14,26,.9); backdrop-filter:blur(10px); border-bottom:1px solid var(--border-color); }
.nav-left { display:flex; align-items:center; gap:15px; }
.nav-logo { width:36px;height:36px; border-radius:8px; box-shadow:0 0 10px rgba(0,212,255,.4); }
.nav-title { font-size:18px; font-weight:600;
    background:linear-gradient(90deg,var(--accent-cyan),var(--accent-purple)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.nav-right { display:flex; align-items:center; gap:20px; }
.nav-link { color:var(--text-secondary); font-size:14px; padding:6px 14px; border-radius:6px; transition:all .3s; }
.nav-link:hover,.nav-link.active { color:var(--accent-cyan); background:rgba(0,212,255,.1); }
.back-btn { color:var(--text-secondary); font-size:14px; padding:6px 14px; border-radius:6px; border:1px solid var(--border-color); transition:all .3s; }
.back-btn:hover { color:var(--accent-cyan); border-color:var(--accent-cyan); background:rgba(0,212,255,.1); }
.user-info { display:flex; align-items:center; gap:10px; }
.user-avatar { width:32px;height:32px; border-radius:50%; border:2px solid var(--accent-cyan); box-shadow:0 0 8px rgba(0,212,255,.4); }
.user-nick { font-size:14px; }
.logout-btn { font-size:12px; color:var(--text-muted); padding:4px 10px; border:1px solid var(--border-color); border-radius:4px; transition:all .3s; }
.logout-btn:hover { color:var(--accent-red); border-color:var(--accent-red); }

/* 主内容 */
.main-content { position:relative; z-index:1; max-width:1200px; margin:0 auto; padding:30px 20px; }
.page-header { text-align:center; margin-bottom:30px; }
.page-title { font-size:32px; font-weight:700;
    background:linear-gradient(90deg,var(--accent-cyan),var(--accent-purple),var(--accent-pink));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; margin-bottom:8px; }
.page-subtitle { color:var(--text-muted); font-size:14px; }
.loading-text { text-align:center; color:var(--text-muted); padding:40px; font-size:14px; }

/* 登录页 */
.login-page { display:flex; align-items:center; justify-content:center; min-height:100vh; }
.login-container { position:relative; z-index:1; width:100%; max-width:420px; padding:20px; }
.login-box { background:var(--bg-card); backdrop-filter:blur(20px); border:1px solid var(--border-color);
    border-radius:20px; padding:40px 35px; box-shadow:0 0 40px rgba(0,212,255,.15); animation:loginBoxIn .8s ease-out; }
@keyframes loginBoxIn { from{opacity:0;transform:translateY(30px) scale(.95)} to{opacity:1;transform:translateY(0) scale(1)} }
.login-logo { text-align:center; margin-bottom:20px; }
.logo-img { width:80px;height:80px; border-radius:20px; box-shadow:0 0 30px rgba(0,212,255,.4); animation:logoFloat 3s ease-in-out infinite; }
@keyframes logoFloat { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-5px)} }
.login-title { text-align:center; font-size:22px; font-weight:700;
    background:linear-gradient(90deg,var(--accent-cyan),var(--accent-purple)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; margin-bottom:4px; }
.login-subtitle { text-align:center; font-size:16px; margin-bottom:6px; }
.login-desc { text-align:center; font-size:12px; color:var(--text-muted); margin-bottom:30px; letter-spacing:2px; }
.login-form { display:flex; flex-direction:column; gap:20px; }
.form-group label { display:block; font-size:13px; color:var(--text-secondary); margin-bottom:8px; letter-spacing:1px; }
.input-wrap { position:relative; display:flex; align-items:center; }
.input-icon { position:absolute; left:14px; font-size:16px; opacity:.6; }
.input-wrap input { width:100%; padding:12px 14px 12px 42px; background:rgba(0,0,0,.3);
    border:1px solid var(--border-color); border-radius:10px; color:var(--text-primary); font-size:14px; outline:none; transition:all .3s; }
.input-wrap input:focus { border-color:var(--accent-cyan); box-shadow:0 0 0 3px rgba(0,212,255,.15); }
.input-wrap input::placeholder { color:var(--text-muted); }
.btn-login { position:relative; width:100%; padding:14px;
    background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple)); border:none; border-radius:10px;
    color:white; font-size:16px; font-weight:600; letter-spacing:4px; cursor:pointer; overflow:hidden; transition:all .3s; }
.btn-login:hover { transform:translateY(-2px); box-shadow:0 5px 20px rgba(0,212,255,.4); }
.btn-login:active { transform:translateY(0); }
.btn-login.loading .btn-text { opacity:0; }
.btn-login.loading .btn-loader { display:block; }
.btn-loader { display:none; position:absolute; top:50%;left:50%; width:20px;height:20px; margin:-10px 0 0 -10px;
    border:2px solid rgba(255,255,255,.3); border-top-color:white; border-radius:50%; animation:spin .8s linear infinite; }
@keyframes spin { to{transform:rotate(360deg)} }
.login-msg { text-align:center; font-size:13px; min-height:20px; margin-top:-10px; }
.login-msg.error { color:var(--accent-red); }
.login-msg.success { color:var(--accent-green); }
.login-footer { text-align:center; margin-top:25px; font-size:11px; color:var(--text-muted); opacity:.5; }

/* 大类卡片 */
.category-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:20px; }
.category-card { position:relative; background:var(--bg-card); backdrop-filter:blur(10px);
    border:1px solid var(--border-color); border-radius:16px; padding:24px; cursor:pointer; overflow:hidden; transition:all .4s cubic-bezier(.175,.885,.32,1.275); }
.category-card::before { content:''; position:absolute; top:0;left:0; width:100%;height:3px;
    background:linear-gradient(90deg,var(--card-color,var(--accent-cyan)),transparent); opacity:0; transition:opacity .3s; }
.category-card:hover { transform:translateY(-6px); border-color:var(--card-color,var(--accent-cyan));
    box-shadow:0 10px 30px rgba(0,0,0,.3),0 0 20px var(--card-color,var(--accent-cyan)); background:var(--bg-card-hover); }
.category-card:hover::before { opacity:1; }
.card-icon { font-size:36px; margin-bottom:12px; display:inline-block; filter:drop-shadow(0 0 8px var(--card-color,var(--accent-cyan))); }
.card-name { font-size:17px; font-weight:600; margin-bottom:6px; }
.card-desc { font-size:12px; color:var(--text-muted); margin-bottom:16px; line-height:1.5; min-height:36px; }
.card-progress { display:flex; justify-content:space-between; align-items:center; font-size:12px; color:var(--text-secondary); margin-bottom:8px; }
.card-progress-bar { height:6px; background:rgba(255,255,255,.08); border-radius:3px; overflow:hidden; }
.card-progress-fill { height:100%; background:linear-gradient(90deg,var(--card-color,var(--accent-cyan)),var(--accent-purple));
    border-radius:3px; transition:width .6s ease; box-shadow:0 0 8px var(--card-color,var(--accent-cyan)); }
.card-level-badge { display:inline-block; padding:2px 8px; background:rgba(0,212,255,.15); color:var(--accent-cyan); border-radius:10px; font-size:11px; font-weight:600; }
.card-tag { display:inline-block; padding:2px 8px; background:rgba(168,85,247,.15); color:var(--accent-purple); border-radius:10px; font-size:10px; font-weight:600; margin-left:6px; }

/* 练习页 */
.practice-main { position:relative; z-index:1; max-width:800px; margin:0 auto; padding:30px 20px; }

/* 关卡地图 */
.level-map { background:var(--bg-card); border:1px solid var(--border-color); border-radius:16px;
    padding:20px; margin-bottom:20px; overflow-x:auto; }
.map-title { font-size:14px; color:var(--text-muted); margin-bottom:16px; text-align:center; }
.map-nodes { display:flex; align-items:center; justify-content:center; flex-wrap:wrap; gap:8px; }
.map-node { display:flex; flex-direction:column; align-items:center; gap:4px; min-width:60px; position:relative; }
.map-node-icon { width:44px;height:44px; border-radius:50%; display:flex; align-items:center; justify-content:center;
    font-size:20px; background:rgba(255,255,255,.05); border:2px solid var(--border-color); transition:all .3s; }
.map-node.passed .map-node-icon { background:linear-gradient(135deg,var(--accent-green),var(--accent-cyan)); border-color:var(--accent-green); box-shadow:0 0 12px rgba(16,185,129,.4); }
.map-node.current .map-node-icon { background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple)); border-color:var(--accent-cyan);
    box-shadow:0 0 16px rgba(0,212,255,.5); animation:nodePulse 1.5s ease-in-out infinite; }
@keyframes nodePulse { 0%,100%{box-shadow:0 0 16px rgba(0,212,255,.5)} 50%{box-shadow:0 0 28px rgba(0,212,255,.8)} }
.map-node.locked .map-node-icon { opacity:.4; filter:grayscale(1); }
.map-node-name { font-size:10px; color:var(--text-muted); text-align:center; max-width:70px; }
.map-node.current .map-node-name { color:var(--accent-cyan); font-weight:600; }
.map-node.passed .map-node-name { color:var(--accent-green); }
.map-connector { width:20px; height:2px; background:var(--border-color); flex-shrink:0; }
.map-connector.passed { background:linear-gradient(90deg,var(--accent-green),var(--accent-cyan)); }

/* 进度条 */
.progress-bar-wrap { background:var(--bg-card); border:1px solid var(--border-color); border-radius:12px; padding:16px 20px; margin-bottom:24px; }
.progress-info { display:flex; justify-content:space-between; margin-bottom:10px; font-size:14px; }
.progress-info span:first-child { color:var(--accent-cyan); font-weight:600; }
.progress-info span:last-child { color:var(--text-muted); }
.progress-bar { height:8px; background:rgba(255,255,255,.08); border-radius:4px; overflow:hidden; }
.progress-fill { height:100%; width:0%; background:linear-gradient(90deg,var(--accent-cyan),var(--accent-purple),var(--accent-pink));
    border-radius:4px; transition:width .6s ease; box-shadow:0 0 10px var(--accent-cyan); }

/* 题目卡片 */
.question-card { background:var(--bg-card); backdrop-filter:blur(10px); border:1px solid var(--border-color);
    border-radius:16px; padding:30px; box-shadow:0 0 30px rgba(0,212,255,.08); }
.question-type { display:inline-block; padding:4px 12px; background:rgba(168,85,247,.15); color:var(--accent-purple);
    border-radius:20px; font-size:12px; font-weight:600; margin-bottom:16px; }
.question-title { font-size:18px; line-height:1.7; margin-bottom:24px; white-space:pre-wrap; }
.options-list { display:flex; flex-direction:column; gap:12px; }
.option-item { display:flex; align-items:center; gap:14px; padding:14px 18px; background:rgba(0,0,0,.25);
    border:1px solid var(--border-color); border-radius:10px; cursor:pointer; transition:all .3s; user-select:none; }
.option-item:hover { border-color:var(--accent-cyan); background:rgba(0,212,255,.08); transform:translateX(4px); }
.option-item.selected { border-color:var(--accent-cyan); background:rgba(0,212,255,.15); box-shadow:0 0 15px rgba(0,212,255,.2); }
.option-item.correct { border-color:var(--accent-green); background:rgba(16,185,129,.15); }
.option-item.wrong { border-color:var(--accent-red); background:rgba(239,68,68,.15); }
.option-item.disabled { pointer-events:none; opacity:.7; }
.option-letter { width:28px;height:28px; display:flex; align-items:center; justify-content:center;
    background:rgba(0,212,255,.15); color:var(--accent-cyan); border-radius:50%; font-size:13px; font-weight:700; flex-shrink:0; }
.option-item.selected .option-letter { background:var(--accent-cyan); color:var(--bg-primary); }
.option-item.correct .option-letter { background:var(--accent-green); color:white; }
.option-item.wrong .option-letter { background:var(--accent-red); color:white; }
.option-text { font-size:15px; line-height:1.5; }

/* 填空/正则输入框 */
.blank-input, .regex-input { width:100%; padding:14px 16px; background:rgba(0,0,0,.3);
    border:1px solid var(--border-color); border-radius:10px; color:var(--text-primary); font-size:15px;
    font-family:'Courier New',monospace; outline:none; transition:all .3s; }
.blank-input:focus, .regex-input:focus { border-color:var(--accent-cyan); box-shadow:0 0 0 3px rgba(0,212,255,.15); }
.regex-hint { font-size:12px; color:var(--text-muted); margin-top:8px; padding:10px; background:rgba(0,0,0,.2); border-radius:6px; border-left:3px solid var(--accent-yellow); }

.submit-area { margin-top:24px; text-align:center; }
.btn-submit { padding:12px 40px; background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple));
    border:none; border-radius:10px; color:white; font-size:15px; font-weight:600; cursor:pointer; transition:all .3s; letter-spacing:2px; }
.btn-submit:hover:not(:disabled) { transform:translateY(-2px); box-shadow:0 5px 20px rgba(0,212,255,.4); }
.btn-submit:disabled { opacity:.4; cursor:not-allowed; }

/* 结果面板 */
.result-panel { text-align:center; padding:30px; background:var(--bg-card); border:1px solid var(--border-color);
    border-radius:16px; margin-top:20px; animation:resultIn .5s ease-out; }
@keyframes resultIn { from{opacity:0;transform:scale(.9)} to{opacity:1;transform:scale(1)} }
.result-icon { font-size:60px; margin-bottom:16px; }
.result-icon.correct { animation:bounce .6s ease; }
.result-icon.wrong { animation:shake .5s ease; }
@keyframes bounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-15px)} }
@keyframes shake { 0%,100%{transform:translateX(0)} 25%{transform:translateX(-10px)} 75%{transform:translateX(10px)} }
.result-text { font-size:22px; font-weight:700; margin-bottom:12px; }
.result-text.correct { color:var(--accent-green); }
.result-text.wrong { color:var(--accent-red); }
.test-results { margin:16px 0; text-align:left; }
.test-case-item { display:flex; align-items:center; gap:10px; padding:8px 12px; margin-bottom:6px;
    background:rgba(0,0,0,.2); border-radius:6px; font-size:13px; font-family:'Courier New',monospace; }
.test-case-item.pass { border-left:3px solid var(--accent-green); }
.test-case-item.fail { border-left:3px solid var(--accent-red); }
.test-case-input { flex:1; color:var(--text-secondary); word-break:break-all; }
.test-case-expected { color:var(--text-muted); font-size:11px; }
.test-case-status { font-weight:700; }
.test-case-status.pass { color:var(--accent-green); }
.test-case-status.fail { color:var(--accent-red); }
.result-explanation { font-size:14px; color:var(--text-secondary); line-height:1.7; margin-bottom:20px;
    padding:14px; background:rgba(0,0,0,.2); border-radius:8px; border-left:3px solid var(--accent-cyan); text-align:left; }
.btn-next { padding:12px 40px; background:linear-gradient(135deg,var(--accent-green),var(--accent-cyan));
    border:none; border-radius:10px; color:white; font-size:15px; font-weight:600; cursor:pointer; transition:all .3s; letter-spacing:2px; }
.btn-next:hover { transform:translateY(-2px); box-shadow:0 5px 20px rgba(16,185,129,.4); }

/* 排行榜 */
.rank-tabs { display:flex; justify-content:center; align-items:center; gap:15px; margin-top:16px; flex-wrap:wrap; }
.rank-tab { padding:8px 24px; background:var(--bg-card); border:1px solid var(--border-color); border-radius:20px;
    color:var(--text-secondary); font-size:14px; cursor:pointer; transition:all .3s; }
.rank-tab.active { background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple)); color:white; border-color:transparent; }
.rank-select { padding:8px 16px; background:var(--bg-card); border:1px solid var(--border-color); border-radius:8px;
    color:var(--text-primary); font-size:14px; outline:none; cursor:pointer; }
.rank-select option { background:var(--bg-secondary); }
.leaderboard-wrap { background:var(--bg-card); border:1px solid var(--border-color); border-radius:16px; overflow:hidden; margin-top:20px; }
.leaderboard-table { width:100%; border-collapse:collapse; }
.leaderboard-table th { padding:16px; text-align:left; font-size:13px; color:var(--text-muted); font-weight:600;
    text-transform:uppercase; letter-spacing:1px; border-bottom:1px solid var(--border-color); background:rgba(0,0,0,.2); }
.leaderboard-table td { padding:14px 16px; font-size:14px; border-bottom:1px solid rgba(255,255,255,.04); }
.leaderboard-table tbody tr { transition:background .2s; }
.leaderboard-table tbody tr:hover { background:rgba(0,212,255,.05); }
.rank-num { display:inline-flex; align-items:center; justify-content:center; width:32px;height:32px; border-radius:50%; font-weight:700; font-size:14px; }
.rank-1 { background:linear-gradient(135deg,#ffd700,#ff8c00); color:#1a1a1a; box-shadow:0 0 12px rgba(255,215,0,.5); }
.rank-2 { background:linear-gradient(135deg,#c0c0c0,#808080); color:#1a1a1a; }
.rank-3 { background:linear-gradient(135deg,#cd7f32,#8b4513); color:white; }
.rank-other { background:rgba(255,255,255,.08); color:var(--text-muted); }
.rank-user { display:flex; align-items:center; gap:12px; }
.rank-user img { width:36px;height:36px; border-radius:50%; border:2px solid var(--border-color); }
.rank-user-name { font-weight:500; }
.rank-level { color:var(--accent-cyan); font-weight:600; }
.rank-correct { color:var(--accent-green); font-weight:600; }

/* 响应式 */
@media (max-width:768px) {
    .top-nav { padding:10px 15px; flex-wrap:wrap; gap:10px; }
    .nav-title { font-size:14px; }
    .nav-link { font-size:12px; padding:4px 8px; }
    .user-nick { display:none; }
    .page-title { font-size:24px; }
    .category-grid { grid-template-columns:1fr; }
    .question-card { padding:20px; }
    .question-title { font-size:16px; }
    .login-box { padding:30px 20px; }
    .map-nodes { justify-content:flex-start; }
}

/* ============================================================
   追加样式：排行榜领奖台 + HTML预览 + 饼干游戏
   ============================================================ */

/* 前三名领奖台 */
.top3-podium { margin-bottom: 30px; }
.podium-container { display:flex; justify-content:center; align-items:flex-end; gap:20px; padding:20px 0; }
.podium-item { display:flex; flex-direction:column; align-items:center; width:140px; }
.podium-avatar-wrap { position:relative; margin-bottom:8px; }
.podium-medal { position:absolute; top:-8px; right:-8px; font-size:24px; z-index:2;
    filter:drop-shadow(0 2px 4px rgba(0,0,0,.3)); }
.podium-avatar { width:64px; height:64px; border-radius:50%; border:3px solid var(--accent-cyan);
    box-shadow:0 0 16px rgba(0,212,255,.4); object-fit:cover; }
.podium-avatar-fallback { width:64px; height:64px; border-radius:50%; display:flex; align-items:center; justify-content:center;
    font-size:24px; font-weight:700; color:white; background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple));
    border:3px solid var(--accent-cyan); box-shadow:0 0 16px rgba(0,212,255,.4); }
.podium-name { font-size:15px; font-weight:700; color:var(--text-primary); margin-bottom:2px; text-align:center; word-break:break-all; }
.podium-userid { font-size:11px; color:var(--text-muted); margin-bottom:8px; }
.podium-stats { display:flex; gap:10px; margin-bottom:8px; }
.podium-level { color:var(--accent-cyan); font-size:12px; font-weight:600; }
.podium-correct { color:var(--accent-green); font-size:12px; font-weight:600; }
.podium-base { width:100%; border-radius:12px 12px 0 0; display:flex; align-items:center; justify-content:center;
    font-size:14px; font-weight:700; color:white; transition:height .5s ease; }
.podium-first .podium-base { background:linear-gradient(180deg,#ffd700,#ff8c00); box-shadow:0 -4px 20px rgba(255,215,0,.3); height:160px; }
.podium-second .podium-base { background:linear-gradient(180deg,#c0c0c0,#808080); box-shadow:0 -4px 16px rgba(192,192,192,.3); height:120px; }
.podium-third .podium-base { background:linear-gradient(180deg,#cd7f32,#8b4513); box-shadow:0 -4px 12px rgba(205,127,50,.3); height:90px; }
.podium-first { transform:translateY(-10px); }
.podium-first .podium-avatar, .podium-first .podium-avatar-fallback { width:72px; height:72px; border-color:#ffd700; box-shadow:0 0 20px rgba(255,215,0,.5); }

/* 排行榜列表头像 */
.rank-avatar-fallback { width:36px; height:36px; border-radius:50%; display:flex; align-items:center; justify-content:center;
    font-size:14px; font-weight:700; color:white; background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple)); flex-shrink:0; }
.rank-user-id { font-size:11px; color:var(--text-muted); margin-top:2px; }

/* HTML预览题型 */
.html-preview-container { margin:16px 0; }
.html-split { display:flex; gap:12px; }
.html-editor-panel, .html-preview-panel { flex:1; min-width:0; }
.panel-label { font-size:12px; color:var(--text-muted); margin-bottom:6px; padding:4px 8px;
    background:rgba(0,212,255,.1); border-radius:4px; display:inline-block; }
.html-editor { width:100%; height:180px; padding:12px; background:rgba(0,0,0,.4);
    border:1px solid var(--border-color); border-radius:8px; color:#a5f3fc; font-family:'Courier New',monospace;
    font-size:13px; line-height:1.5; resize:vertical; outline:none; transition:border-color .3s; }
.html-editor:focus { border-color:var(--accent-cyan); box-shadow:0 0 0 3px rgba(0,212,255,.15); }
.html-preview-box { height:180px; background:white; border-radius:8px; overflow:hidden; border:1px solid var(--border-color); }
.preview-iframe { width:100%; height:100%; border:none; background:white; }

/* 饼干收集游戏 */
.game-question { font-size:16px; line-height:1.8; margin-bottom:16px; padding:14px 18px;
    background:linear-gradient(135deg,rgba(168,85,247,.1),rgba(0,212,255,.1)); border-radius:10px;
    border-left:4px solid var(--accent-purple); white-space:pre-wrap; }
.game-container { position:relative; height:320px; background:linear-gradient(180deg,#1a1a2e 0%,#16213e 50%,#0f3460 100%);
    border-radius:16px; overflow:hidden; border:1px solid var(--border-color); margin-bottom:12px; }
.game-area { position:absolute; top:0; left:0; right:0; bottom:50px; }
.game-ground { position:absolute; bottom:0; left:0; right:0; height:50px;
    background:linear-gradient(180deg,transparent,rgba(16,185,129,.2)); border-top:2px solid rgba(16,185,129,.3); }
.game-player { position:absolute; bottom:8px; left:50%; transform:translateX(-50%); display:flex; flex-direction:column; align-items:center;
    transition:left .3s ease; }
.player-avatar { font-size:36px; animation:playerIdle 2s ease-in-out infinite; }
@keyframes playerIdle { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-4px)} }
.player-name-tag { font-size:10px; color:var(--accent-cyan); background:rgba(0,0,0,.6); padding:2px 8px; border-radius:10px; margin-top:2px; white-space:nowrap; }
.player-happy .player-avatar { animation:playerJump .5s ease; }
@keyframes playerJump { 0%{transform:translateY(0) scale(1)} 50%{transform:translateY(-20px) scale(1.2)} 100%{transform:translateY(0) scale(1)} }
.player-sad .player-avatar { animation:playerShake .5s ease; }
@keyframes playerShake { 0%,100%{transform:translateX(0)} 25%{transform:translateX(-5px)} 75%{transform:translateX(5px)} }

.game-cookie { position:absolute; cursor:pointer; display:flex; flex-direction:column; align-items:center;
    transition:transform .2s, opacity .3s; animation:cookieFloat 3s ease-in-out infinite; user-select:none; }
@keyframes cookieFloat { 0%,100%{transform:translateY(0) rotate(-5deg)} 50%{transform:translateY(-8px) rotate(5deg)} }
.game-cookie:hover { transform:scale(1.2); z-index:10; }
.cookie-emoji { font-size:32px; filter:drop-shadow(0 2px 4px rgba(0,0,0,.3)); }
.cookie-label { font-size:11px; font-weight:700; color:white; background:rgba(0,0,0,.7); padding:2px 8px;
    border-radius:10px; margin-top:-4px; white-space:nowrap; }
.cookie-collected { animation:cookieCollect .6s ease forwards; }
@keyframes cookieCollect { 0%{transform:scale(1);opacity:1} 50%{transform:scale(1.5) rotate(180deg);opacity:.8} 100%{transform:scale(0) translateY(-100px);opacity:0} }
.cookie-wrong { animation:cookieWrong .5s ease; }
@keyframes cookieWrong { 0%{transform:scale(1)} 25%{transform:scale(1.2) translateX(-5px)} 50%{transform:scale(.9) translateX(5px)} 75%{transform:scale(1.1)} 100%{transform:scale(1)} }
.game-hint { text-align:center; font-size:13px; color:var(--text-muted); padding:8px;
    background:rgba(245,158,11,.1); border-radius:8px; border:1px dashed rgba(245,158,11,.3); }

/* 响应式 */
@media (max-width:768px) {
    .podium-container { gap:8px; }
    .podium-item { width:100px; }
    .podium-avatar, .podium-avatar-fallback { width:48px; height:48px; }
    .podium-first .podium-avatar, .podium-first .podium-avatar-fallback { width:56px; height:56px; }
    .podium-name { font-size:12px; }
    .podium-base { font-size:12px; }
    .html-split { flex-direction:column; }
    .html-editor, .html-preview-box { height:140px; }
    .game-container { height:260px; }
}