/* ============================================
   style.css - 时间看板样式
   ============================================ */

/* ===== 全局 ===== */
  @import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

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

  :root {
    --bg: #0c0c14;
    --surface: #14141e;
    --surface2: #1c1c28;
    --surface3: #24243a;
    --border: #2a2a3e;
    --text: #e8e8f0;
    --text2: #8888a0;
    --text3: #5a5a72;
    --accent: #6c8cff;
    --accent2: #4a6aee;
    --accent-dim: rgba(108, 140, 255, 0.08);
    --accent-glow: rgba(108, 140, 255, 0.15);
    --green: #4ade80;
    --green-dim: rgba(74, 222, 128, 0.1);
    --red: #f87171;
    --orange: #fbbf24;
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  }

  body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    overflow-y: auto;
    line-height: 1.6;
  }

  /* ===== 头部 ===== */
  .header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(12, 12, 20, 0.88);
    backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--border);
    height: 60px;
    display: flex; align-items: center; justify-content: center;
    padding: 0 28px;
  }

  .header-inner {
    width: 100%; max-width: 800px;
    display: flex; align-items: center;
  }

  .header-left {
    display: flex; align-items: center; gap: 10px;
    cursor: pointer; position: relative; flex-shrink: 0;
  }

  .header-nav { flex: 1; display: flex; justify-content: flex-end; }

  .avatar {
    width: 36px; height: 36px; border-radius: 50%;
    object-fit: cover; border: 2px solid var(--border); transition: var(--transition);
  }
  .header-left:hover .avatar { border-color: var(--accent); }

  .site-info { display: flex; flex-direction: column; }
  .site-title { font-size: 14px; font-weight: 600; color: var(--text); letter-spacing: 0.3px; line-height: 1.3; }
  .site-domain { font-size: 11px; color: var(--text3); line-height: 1.3; }

  .nav { display: flex; gap: 2px; }

  .nav-tab {
    padding: 8px 18px; border-radius: var(--radius-sm);
    font-size: 13px; font-weight: 500; color: var(--text2);
    cursor: pointer; transition: var(--transition);
    border: none; background: none; white-space: nowrap;
  }
  .nav-tab:hover { color: var(--text); background: var(--surface2); }
  .nav-tab.active { color: var(--accent); background: var(--accent-dim); }

  /* ===== 节点弹窗 ===== */
  .node-popup {
    display: none; position: absolute; top: 52px; left: 0;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 8px;
    min-width: 240px; box-shadow: 0 16px 48px rgba(0,0,0,0.5);
    z-index: 150; animation: popDown 0.2s ease;
  }
  .node-popup.show { display: block; }
  @keyframes popDown {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  .node-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 12px; border-radius: var(--radius-sm);
    cursor: pointer; transition: var(--transition);
    text-decoration: none; color: var(--text);
  }
  .node-item:hover { background: var(--surface2); }
  .node-item.current { background: var(--accent-dim); border: 1px solid rgba(108,140,255,0.2); }

  .node-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
  .node-dot.cf { background: var(--green); }
  .node-dot.v6 { background: var(--accent); }
  .node-dot.gh { background: var(--orange); }

  .node-name { font-size: 14px; font-weight: 600; color: var(--text); }
  .node-url { font-size: 11px; color: var(--text3); margin-top: 1px; font-family: 'SF Mono', 'Consolas', monospace; }

  /* ===== 主面板 ===== */
  .main {
    padding-top: 80px; padding-bottom: 48px;
    max-width: 800px; margin: 0 auto;
    padding-left: 20px; padding-right: 20px;
  }

  .panel { display: none; animation: fadeIn 0.35s ease; }
  .panel.active { display: block; }
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
  }

  .card {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 40px 32px;
    position: relative; overflow: hidden;
  }

  /* ===== 时间面板 ===== */
  .time-card { text-align: center; }
  .time-card::after {
    content: ''; position: absolute;
    bottom: -40%; left: 50%; transform: translateX(-50%);
    width: 500px; height: 500px;
    background: radial-gradient(circle, var(--accent-glow), transparent 65%);
    pointer-events: none;
  }

  .time-clock {
    font-size: 68px; font-weight: 200; letter-spacing: 3px;
    color: var(--text); font-variant-numeric: tabular-nums;
    position: relative; z-index: 1;
  }
  .time-clock .sec { font-size: 32px; color: var(--accent); }
  .time-clock .ms { font-size: 20px; color: var(--text3); }

  .time-date {
    font-size: 16px; color: var(--text2); margin-top: 14px;
    position: relative; z-index: 1; font-weight: 300;
  }

  .time-chips {
    display: flex; justify-content: center; gap: 16px;
    margin-top: 24px; position: relative; z-index: 1; flex-wrap: wrap;
  }

  .chip {
    background: var(--surface2); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 8px 16px;
    font-size: 12px; color: var(--text2);
    display: flex; align-items: center; gap: 6px;
  }
  .chip b { color: var(--accent); font-weight: 700; }

  /* ===== 世界时钟 ===== */
  .world-clocks {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px; margin-top: 20px; position: relative; z-index: 1;
  }

  .wc-item {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 14px 16px;
    text-align: center; cursor: pointer; transition: var(--transition);
  }
  .wc-item:hover { border-color: var(--text3); }
  .wc-item.local-tz { border-color: var(--accent); box-shadow: 0 0 12px var(--accent-glow); }
  .wc-item.top-tz { border-color: var(--accent); box-shadow: 0 0 12px var(--accent-glow); }
  .wc-city {
    font-size: 11px; color: var(--text3); letter-spacing: 1px; margin-bottom: 6px;
  }
  .wc-item.local-tz .wc-city, .wc-item.top-tz .wc-city { color: var(--accent); }
  .wc-time {
    font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--text);
  }
  .wc-item.local-tz .wc-time, .wc-item.top-tz .wc-time { color: var(--accent); }
  .wc-date { font-size: 11px; color: var(--text3); margin-top: 2px; }

  /* ===== 校时面板 ===== */
  .diff-center { text-align: center; }
  .diff-big {
    font-size: 56px; font-weight: 200; font-variant-numeric: tabular-nums;
    margin: 16px 0 8px;
  }
  .diff-big.ok { color: var(--green); }
  .diff-big.warn { color: var(--orange); }
  .diff-big.bad { color: var(--red); }
  .diff-sub { font-size: 13px; color: var(--text2); }
  .diff-note { font-size: 11px; color: var(--orange); margin-top: 8px; opacity: 0.7; }

  .diff-grid {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 12px; margin-top: 28px;
  }
  .diff-cell {
    background: var(--surface2); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 14px 16px; text-align: center;
  }
  .diff-cell .dl { font-size: 10px; color: var(--text3); text-transform: uppercase; letter-spacing: 1px; }
  .diff-cell .dv { font-size: 18px; color: var(--text); margin-top: 4px; font-variant-numeric: tabular-nums; }

  /* ===== 考试面板 ===== */
  .exam-bar {
    display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px;
  }
  .exam-bar h2 { font-size: 18px; font-weight: 600; }
  .exam-bar-actions { display: flex; gap: 8px; }

  .btn {
    padding: 6px 16px; border-radius: 999px;
    font-size: 12px; font-weight: 500; cursor: pointer;
    border: 1px solid transparent; transition: var(--transition);
    font-family: inherit; white-space: nowrap;
    display: inline-flex; align-items: center; gap: 5px;
    background: var(--surface2); color: var(--text2);
  }
  .btn:hover { background: var(--surface3); color: var(--text); }
  .btn-accent { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
  .btn-accent:hover { background: var(--accent-dim); }
  .btn-ghost { background: var(--surface2); color: var(--text2); }
  .btn-ghost:hover { background: var(--surface3); color: var(--text); }
  .btn-red { background: transparent; color: var(--red); border: 1px solid rgba(248,113,113,0.3); }
  .btn-red:hover { background: rgba(248,113,113,0.1); border-color: var(--red); }
  .btn-green { background: transparent; color: var(--green); border: 1px solid rgba(74,222,128,0.3); }
  .btn-green:hover { background: var(--green-dim); border-color: var(--green); }
  .btn-icon {
    width: 28px; height: 28px; padding: 0;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 999px; background: var(--surface2);
    border: none; color: var(--text3);
    cursor: pointer; transition: var(--transition); font-size: 13px;
  }
  .btn-icon:hover { color: var(--text); background: var(--surface3); }

  .exam-empty {
    text-align: center; padding: 64px 20px; color: var(--text3);
  }
  .exam-empty .ico { font-size: 40px; margin-bottom: 12px; }
  .exam-empty p { font-size: 13px; }

  .exam-list { display: flex; flex-direction: column; gap: 10px; }

  .exam-row {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 16px 20px;
    display: flex; align-items: center; justify-content: space-between;
    transition: var(--transition); position: relative; cursor: default;
  }
  .exam-row.live { border-color: var(--accent); box-shadow: 0 0 16px var(--accent-glow); cursor: pointer; }
  .exam-row.live::before {
    content: ''; position: absolute; left: 0; top: 0; bottom: 0;
    width: 3px; background: var(--accent); border-radius: 3px 0 0 3px;
  }
  .exam-row.upcoming { border-color: var(--green); cursor: pointer; }
  .exam-row.upcoming::before {
    content: ''; position: absolute; left: 0; top: 0; bottom: 0;
    width: 3px; background: var(--green); border-radius: 3px 0 0 3px;
  }
  .exam-row.ended { opacity: 0.45; }

  .er-left { display: flex; align-items: center; gap: 14px; }
  .er-ico {
    width: 40px; height: 40px; border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; background: var(--surface2); border: 1px solid var(--border); flex-shrink: 0;
  }
  .exam-row.live .er-ico { background: var(--accent-dim); border-color: var(--accent); }

  .er-name { font-size: 14px; font-weight: 600; }
  .er-time { font-size: 11px; color: var(--text3); margin-top: 2px; }

  .er-right { display: flex; align-items: center; gap: 10px; text-align: right; }
  .er-cd { font-size: 22px; font-weight: 200; font-variant-numeric: tabular-nums; }
  .exam-row.live .er-cd { color: var(--accent); }
  .exam-row.upcoming .er-cd { color: var(--green); }
  .exam-row.ended .er-cd { color: var(--text3); font-size: 12px; }
  .er-tag { font-size: 10px; color: var(--text3); letter-spacing: 0.5px; }
  .er-fs-hint { font-size: 10px; color: var(--accent); opacity: 0.6; }

  /* ===== 弹窗 ===== */
  .overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,0.55); backdrop-filter: blur(10px);
    z-index: 200; align-items: center; justify-content: center;
  }
  .overlay.open { display: flex; }

  .modal {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 16px; padding: 28px;
    width: 92%; max-width: 440px;
    animation: modalUp 0.25s ease;
    box-shadow: 0 24px 64px rgba(0,0,0,0.4);
  }
  @keyframes modalUp {
    from { opacity: 0; transform: translateY(16px) scale(0.97); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
  }

  .modal h3 { font-size: 16px; font-weight: 600; margin-bottom: 20px; }

  .fg { margin-bottom: 16px; }
  .fg label {
    display: block; font-size: 11px; color: var(--text3);
    text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px;
  }

  .subj-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .subj-btn {
    padding: 10px 6px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--surface2);
    color: var(--text2); font-size: 13px; cursor: pointer;
    transition: var(--transition); font-family: inherit; text-align: center;
  }
  .subj-btn:hover { border-color: var(--accent); color: var(--text); }
  .subj-btn.sel { border-color: var(--accent); background: var(--accent-dim); color: var(--accent); }

  .input {
    width: 100%; padding: 10px 12px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--surface2);
    color: var(--text); font-size: 13px; font-family: inherit;
    outline: none; transition: var(--transition); color-scheme: dark;
  }
  .input:focus { border-color: var(--accent); }
  .input::placeholder { color: var(--text3); }

  input[type="datetime-local"]::-webkit-calendar-picker-indicator { filter: invert(0.6); cursor: pointer; }

  /* Custom duration dropdown */
  .dur-dropdown { position: relative; }
  .dur-trigger {
    width: 100%; padding: 10px 12px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--surface2);
    color: var(--text); font-size: 13px; font-family: inherit;
    cursor: pointer; transition: var(--transition);
    display: flex; align-items: center; justify-content: space-between;
    outline: none;
  }
  .dur-trigger:hover, .dur-trigger.open { border-color: var(--accent); }
  .dur-trigger .arrow {
    width: 0; height: 0; border-left: 4px solid transparent;
    border-right: 4px solid transparent; border-top: 5px solid var(--text3);
    transition: transform 0.2s; flex-shrink: 0;
  }
  .dur-trigger.open .arrow { transform: rotate(180deg); }
  .dur-list {
    display: none; position: absolute; top: calc(100% + 4px); left: 0; right: 0;
    background: var(--surface2); border: 1px solid var(--border);
    border-radius: var(--radius-sm); overflow: hidden; z-index: 50;
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  }
  .dur-list.open { display: block; }
  .dur-opt {
    padding: 10px 12px; font-size: 13px; color: var(--text2);
    cursor: pointer; transition: background 0.15s;
  }
  .dur-opt:hover { background: var(--surface3); color: var(--text); }
  .dur-opt.sel { background: var(--accent-dim); color: var(--accent); }

  .row2 { display: flex; gap: 10px; }
  .row2 .fg { flex: 1; }
  .hint { font-size: 11px; color: var(--text3); margin-top: 4px; }
  .modal-foot { display: flex; justify-content: flex-end; gap: 8px; margin-top: 24px; }

  /* 考试全屏 */
.fs {
    display: none; position: fixed; inset: 0; z-index: 300;
    background: var(--bg); flex-direction: column;
    cursor: default; user-select: none;
    overflow: hidden;
    scrollbar-width: none;
}
  .fs::-webkit-scrollbar { display: none; }
  .fs.show { display: flex; }

  .fs-bar {
    height: 52px;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 28px;
    background: rgba(12,12,20,0.85); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border); flex-shrink: 0;
  }
  .fs-bar-left {
    display: flex; align-items: center; gap: 10px;
    font-size: 15px; font-weight: 600; color: var(--text);
  }
  .fs-bar-left .sep { color: var(--text3); font-weight: 300; }
  .fs-bar-left .sub { color: var(--text2); font-weight: 400; font-size: 13px; }
  .fs-exit {
    background: none; border: 1px solid var(--border); color: var(--text2);
    font-size: 12px; cursor: pointer; padding: 6px 16px;
    border-radius: 999px; transition: var(--transition); font-family: inherit;
  }
  .fs-exit:hover { color: var(--text); border-color: var(--text3); }

  .fs-body {
    flex: 1; display: flex; flex-direction: row;
    position: relative; overflow: hidden;
    scrollbar-width: none;
  }
  .fs-body::-webkit-scrollbar { display: none; }

  .fs-glow {
    position: absolute; width: 600px; height: 600px; border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow), transparent 65%);
    pointer-events: none; animation: glow 4s ease-in-out infinite;
    top: 50%; left: 50%; transform: translate(-50%, -50%);
  }
  @keyframes glow {
    0%, 100% { transform: translate(-50%,-50%) scale(1); opacity: 0.3; }
    50% { transform: translate(-50%,-50%) scale(1.2); opacity: 0.6; }
  }

  /* LEFT sidebar */
  .fs-left {
    width: 280px; flex-shrink: 0;
    display: flex; flex-direction: column;
    background: var(--surface); border-right: 1px solid var(--border);
    overflow-y: auto; position: relative; z-index: 1;
    scrollbar-width: none;
  }
  .fs-left::-webkit-scrollbar { display: none; }
  .fs-left-head {
    padding: 28px 24px; text-align: center;
    border-bottom: 1px solid var(--border);
  }
  .fs-left-head .fs-ico { font-size: 48px; margin-bottom: 8px; }
  .fs-left-head .fs-name { font-size: 28px; font-weight: 700; margin-bottom: 6px; }
  .fs-left-head .fs-state {
    display: flex; align-items: center; justify-content: center; gap: 8px;
    font-size: 13px; letter-spacing: 2px; text-transform: uppercase;
  }
  .fs-left-head .fs-dot {
    width: 8px; height: 8px; border-radius: 50%;
    animation: pulse 1.4s ease-in-out infinite;
  }
  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.3; transform: scale(0.6); }
  }

  .fs-left-info { padding: 20px 24px; display: flex; flex-direction: column; gap: 14px; }
  .fs-li-row { display: flex; justify-content: space-between; align-items: center; }
  .fs-li-label { font-size: 12px; color: var(--text3); letter-spacing: 1px; }
  .fs-li-val { font-size: 15px; font-variant-numeric: tabular-nums; color: var(--text); }

  .fs-left-schedule {
    flex: 1; border-top: 1px solid var(--border);
    overflow-y: auto; padding: 16px;
    scrollbar-width: none;
  }
  .fs-left-schedule::-webkit-scrollbar { display: none; }
  .fs-left-schedule .fs-sched-title {
    font-size: 11px; color: var(--text3); letter-spacing: 2px;
    text-transform: uppercase; margin-bottom: 12px; text-align: center;
  }
  .fs-left-list { display: flex; flex-direction: column; gap: 6px; }
  .fs-left-item {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 12px; border-radius: var(--radius-sm);
    background: var(--surface2); border: 1px solid transparent;
    transition: var(--transition);
  }
  .fs-left-item.active { border-color: var(--accent); background: var(--accent-dim); }
  .fs-left-item.done { opacity: 0.4; }
  .fs-left-item .fs-li-ico { font-size: 16px; flex-shrink: 0; }
  .fs-left-item .fs-li-name { font-size: 13px; font-weight: 500; flex: 1; }
  .fs-left-item .fs-li-status { font-size: 11px; color: var(--text3); white-space: nowrap; }
  .fs-left-item.active .fs-li-status { color: var(--accent); }

  /* RIGHT main area */
  .fs-right {
    flex: 1; display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    position: relative; z-index: 1; padding: 40px;
    overflow-y: auto;
    scrollbar-width: none;
  }
  .fs-right::-webkit-scrollbar { display: none; }
  .fs-cd-label {
    font-size: 13px; color: var(--text3); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 8px;
  }
  .fs-cd {
    font-size: 96px; font-weight: 100; font-variant-numeric: tabular-nums;
    letter-spacing: 6px; text-shadow: 0 0 60px var(--accent-glow);
    margin-bottom: 24px;
  }
  .fs-time-row {
    display: flex; gap: 20px; flex-wrap: wrap; justify-content: center;
  }
  .fs-chip {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 999px; padding: 10px 24px;
    font-size: 14px; color: var(--text2);
    display: flex; align-items: center; gap: 8px;
  }
  .fs-chip b { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }

  /* ===== 作者面板 ===== */
  .author-wrap { text-align: center; }
  .author-wrap .av {
    width: 72px; height: 72px; border-radius: 50%;
    object-fit: cover; border: 2px solid var(--border); margin-bottom: 16px;
  }
  .author-wrap h3 { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
  .author-wrap p { font-size: 13px; color: var(--text2); margin-bottom: 24px; line-height: 1.8; }
  .author-wrap a {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 10px 28px; border-radius: var(--radius-sm);
    background: transparent; color: var(--accent); text-decoration: none;
    font-size: 13px; font-weight: 500; transition: var(--transition);
    border: 1px solid var(--accent);
  }
  .author-wrap a:hover { background: var(--accent-dim); }

  /* ===== 响应式 ===== */
  @media (max-width: 600px) {
    .header { padding: 0 14px; height: 54px; }
    .nav-tab { padding: 6px 10px; font-size: 12px; }
    .main { padding-top: 68px; padding-left: 14px; padding-right: 14px; }
    .card { padding: 28px 18px; }
    .time-clock { font-size: 42px; }
    .time-clock .sec { font-size: 22px; }
    .time-chips { gap: 8px; }
    .chip { padding: 6px 10px; font-size: 11px; }
    .diff-big { font-size: 36px; }
    .diff-grid { grid-template-columns: 1fr; }
    .subj-grid { grid-template-columns: repeat(3, 1fr); }
    .exam-row { flex-direction: column; align-items: flex-start; gap: 10px; }
    .er-right { align-self: flex-end; }
    .site-title { font-size: 13px; }
    .site-domain { font-size: 10px; }
    .avatar { width: 30px; height: 30px; }
    .world-clocks { grid-template-columns: repeat(2, 1fr); }
    .fs-body { flex-direction: column; }
    .fs-left { width: 100%; border-right: none; border-bottom: 1px solid var(--border); max-height: 40vh; scrollbar-width: none; }
    .fs-left::-webkit-scrollbar { display: none; }
    .fs-left-head { padding: 16px; }
    .fs-left-head .fs-ico { font-size: 36px; }
    .fs-left-head .fs-name { font-size: 22px; }
    .fs-right { padding: 24px 20px; }
    .fs-cd { font-size: 56px; letter-spacing: 3px; }
    .fs-time-row { gap: 10px; }
    .fs-chip { padding: 6px 14px; font-size: 12px; }
  }

  /* ===== 导航图标 ===== */
  .nav-tab { display: inline-flex; align-items: center; gap: 6px; }
  .nav-tab svg { width: 14px; height: 14px; flex-shrink: 0; }

  /* ===== 时间全屏 ===== */
  .time-fs {
    display: none; position: fixed; inset: 0; z-index: 300;
    background: var(--bg); flex-direction: column;
    align-items: center; justify-content: center;
    cursor: pointer; user-select: none;
    overflow: hidden;
    scrollbar-width: none;
  }
  .time-fs::-webkit-scrollbar { display: none; }
  .time-fs.show { display: flex; }
  .time-fs-clock {
    font-size: 120px; font-weight: 100; letter-spacing: 8px;
    color: var(--text); font-variant-numeric: tabular-nums;
    text-shadow: 0 0 80px var(--accent-glow);
  }
  .time-fs-clock .sec { font-size: 60px; color: var(--accent); }
  .time-fs-clock .ms { font-size: 32px; color: var(--text3); }
  .time-fs-date {
    font-size: 24px; color: var(--text2); margin-top: 20px;
    font-weight: 300; letter-spacing: 2px;
  }
  .time-fs-info {
    display: flex; gap: 24px; margin-top: 32px;
  }
  .time-fs-chip {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 999px; padding: 10px 28px;
    font-size: 15px; color: var(--text2);
  }
  .time-fs-chip b { color: var(--accent); font-weight: 600; }
  .time-fs-hint {
    position: absolute; bottom: 28px;
    font-size: 12px; color: var(--text3); opacity: 0.5;
  }
  .time-fs-glow {
    position: absolute; width: 700px; height: 700px; border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow), transparent 65%);
    pointer-events: none; animation: glow 4s ease-in-out infinite;
    top: 50%; left: 50%; transform: translate(-50%, -50%);
  }
  @media (max-width: 600px) {
    .time-fs-clock { font-size: 64px; letter-spacing: 4px; }
    .time-fs-clock .sec { font-size: 32px; }
    .time-fs-clock .ms { font-size: 20px; }
    .time-fs-date { font-size: 18px; }
    .time-fs-info { gap: 10px; flex-wrap: wrap; justify-content: center; }
    .time-fs-chip { padding: 8px 16px; font-size: 13px; }
  }