/* 未验证时：正文内容不可见且不可滚动，避免内容"闪现"（visibility:hidden 同时使其脱离 Tab 焦点链） */
  html[data-ag="pending"] body > *:not(#ag-root) { visibility: hidden !important; }
  html[data-ag="pending"], html[data-ag="pending"] body { overflow: hidden !important; }

  #ag-root {
    position: fixed;
    inset: 0;
    z-index: 2147483000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--theme, #ffffff);
    color: var(--primary, #1f1f1f);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    -webkit-font-smoothing: antialiased;
    animation: ag-fade 0.25s ease both;
  }
  #ag-root, #ag-root *, #ag-root *::before, #ag-root *::after { box-sizing: border-box; }
  #ag-root.ag-out { opacity: 0; transition: opacity 0.3s ease; }

  @keyframes ag-fade { from { opacity: 0; } to { opacity: 1; } }

  #ag-root .ag-card {
    position: relative;
    width: 100%;
    max-width: 430px;
    padding: 38px 30px 30px;
    text-align: center;
    background: var(--entry, #ffffff);
    border: 1px solid var(--border, #e6e6e6);
    border-radius: 18px;
    box-shadow: 0 18px 50px -12px rgba(0, 0, 0, 0.18), 0 4px 14px -6px rgba(0, 0, 0, 0.10);
  }

  #ag-root .ag-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    margin: 0 auto 18px;
    font-size: 30px;
    line-height: 1;
    border-radius: 50%;
    background: linear-gradient(135deg, #ff5f6d, #ffc371);
    box-shadow: 0 8px 22px -8px rgba(255, 95, 109, 0.7);
  }

  #ag-root .ag-title {
    margin: 0 0 10px;
    font-size: 21px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--primary, #1f1f1f);
  }

  #ag-root .ag-question {
    margin: 0 0 12px;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.6;
    color: var(--primary, #1f1f1f);
  }

  #ag-root .ag-desc {
    margin: 0 0 26px;
    font-size: 14px;
    line-height: 1.75;
    color: var(--secondary, #6b6b6b);
  }
  #ag-root .ag-desc b, #ag-root .ag-question b { color: var(--primary, #1f1f1f); }

  #ag-root .ag-actions { display: flex; flex-direction: column; gap: 10px; }

  #ag-root .ag-btn {
    width: 100%;
    padding: 13px 18px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    border: 0;
    border-radius: 11px;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    transition: transform 0.12s ease, box-shadow 0.2s ease, opacity 0.2s ease, background 0.2s ease;
  }
  #ag-root .ag-btn:active { transform: scale(0.985); }
  #ag-root .ag-btn:focus-visible { outline: 2px solid #ff5f6d; outline-offset: 2px; }

  #ag-root .ag-yes {
    background: linear-gradient(135deg, #ff5f6d, #ff8a5b);
    color: #ffffff;
    box-shadow: 0 8px 20px -10px rgba(255, 95, 109, 0.9);
  }
  #ag-root .ag-yes:hover { box-shadow: 0 10px 26px -10px rgba(255, 95, 109, 1); }

  #ag-root .ag-no {
    background: transparent;
    border: 1px solid var(--border, #e6e6e6);
    color: var(--secondary, #6b6b6b);
  }
  #ag-root .ag-no:hover { opacity: 0.8; }

  #ag-root .ag-foot {
    margin: 18px 0 0;
    font-size: 12px;
    line-height: 1.7;
    color: var(--secondary, #9a9a9a);
  }

  #ag-root .ag-loading {
    display: none;
    height: 4px;
    margin: 4px 0 0;
    overflow: hidden;
    border-radius: 99px;
    background: var(--tertiary, #e2e2e2);
  }
  #ag-root .ag-card.ag-bye .ag-loading { display: block; }
  #ag-root .ag-loading span {
    display: block;
    width: 40%;
    height: 100%;
    border-radius: 99px;
    background: linear-gradient(90deg, #ff5f6d, #ff8a5b);
    animation: ag-slide 1s ease-in-out infinite;
  }
  @keyframes ag-slide {
    0%   { transform: translateX(-110%); }
    100% { transform: translateX(280%); }
  }

  @media (prefers-reduced-motion: reduce) {
    #ag-root { animation: none; }
    #ag-root .ag-loading span { animation-duration: 1.8s; }
  }

  /* ── 会话背景图 ── */
  #ag-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
  }
  #ag-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: #ffffff;
    opacity: var(--ag-dim, 0.55);
  }
  /* 夜间模式用黑色蒙版，浓度独立控制（--ag-dim-dark） */
  [data-theme="dark"] #ag-bg::after {
    background: #000000;
    opacity: var(--ag-dim-dark, var(--ag-dim, 0.4));
  }
  /* 让正文容器透明，露出背景图（卡片仍保留自己的底色） */
  html[data-ag-bg] body,
  html[data-ag-bg] .list { background: transparent !important; }

  /* ── 右下角「下载背景图」按钮（半透明，悬停时变清晰） ── */
  #ag-dl {
    position: fixed;
    right: 16px;
    bottom: 16px;
    z-index: 900;
    padding: 9px 16px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 13px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--primary, #1f1f1f);
    background: rgba(255, 255, 255, 0.32);
    border: 1px solid rgba(120, 120, 120, 0.32);
    border-radius: 999px;
    box-shadow: none;
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
    cursor: pointer;
    opacity: 0.5;
    -webkit-appearance: none;
    appearance: none;
    transition: opacity 0.2s ease, background 0.2s ease, transform 0.12s ease;
  }
  #ag-dl:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.72);
    transform: translateY(-1px);
  }
  #ag-dl:active { transform: translateY(0); }
  #ag-dl:focus-visible { opacity: 1; outline: 2px solid #ff5f6d; outline-offset: 2px; }
  [data-theme="dark"] #ag-dl {
    background: rgba(0, 0, 0, 0.32);
    border-color: rgba(255, 255, 255, 0.22);
  }
  [data-theme="dark"] #ag-dl:hover { background: rgba(0, 0, 0, 0.62); }

  /* ── 下载确认弹窗（是 / 否） ── */
  #ag-dl-modal {
    position: fixed;
    inset: 0;
    z-index: 2147482500;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(0, 0, 0, 0.35);
    animation: ag-fade 0.18s ease both;
  }
  #ag-dl-modal[hidden] { display: none; }
  #ag-dl-modal, #ag-dl-modal * { box-sizing: border-box; }

  #ag-dl-modal .ag-dl-card {
    width: 100%;
    max-width: 340px;
    padding: 26px 24px 22px;
    text-align: center;
    background: var(--entry, #ffffff);
    color: var(--primary, #1f1f1f);
    border: 1px solid var(--border, #e6e6e6);
    border-radius: 16px;
    box-shadow: 0 18px 50px -12px rgba(0, 0, 0, 0.25), 0 4px 14px -6px rgba(0, 0, 0, 0.10);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  }
  #ag-dl-modal .ag-dl-title {
    margin: 0 0 8px;
    font-size: 18px;
    font-weight: 700;
  }
  #ag-dl-modal .ag-dl-text {
    margin: 0 0 20px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--secondary, #6b6b6b);
  }
  #ag-dl-modal .ag-dl-actions { display: flex; gap: 10px; }
  #ag-dl-modal .ag-dl-btn {
    flex: 1;
    padding: 11px 16px;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    border: 0;
    border-radius: 10px;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    transition: transform 0.12s ease, opacity 0.2s ease;
  }
  #ag-dl-modal .ag-dl-btn:active { transform: scale(0.97); }
  #ag-dl-modal .ag-dl-yes {
    background: linear-gradient(135deg, #ff5f6d, #ff8a5b);
    color: #ffffff;
    box-shadow: 0 8px 20px -10px rgba(255, 95, 109, 0.9);
  }
  #ag-dl-modal .ag-dl-no {
    background: transparent;
    border: 1px solid var(--border, #e6e6e6);
    color: var(--secondary, #6b6b6b);
  }
  #ag-dl-modal .ag-dl-no:hover { opacity: 0.8; }