/* ═══ 移动端专用 CSS（≤768px 全面覆盖优化）═══ */
@media (max-width: 768px) {

  /* ── 基础 ── */
  html { -webkit-text-size-adjust: 100%; }
  body { overflow-x: hidden; }
  .container, .mc-page main, main, .noir-container, .noir-main {
    padding-left: .75rem !important;
    padding-right: .75rem !important;
  }
  .page-title { font-size: 1.35rem !important; margin: .8rem 0 .6rem !important; }
  .section-label { font-size: .85rem !important; margin: 1.6rem 0 .7rem !important; }
  .back, .back-link { font-size: .8rem; }
  h1 { font-size: 1.4rem; }
  h2 { font-size: 1.15rem; }
  h3 { font-size: 1rem; }

  /* ── 面板/卡片 ── */
  .panel, .card, .noir-card, .auth-card, .al-panel, .cm-card, .tt-panel {
    padding: .9rem !important;
    border-radius: 12px !important;
    margin-bottom: .7rem;
  }
  .btn { padding: .55rem .85rem; font-size: .85rem; }

  /* ── 表单 ── */
  input[type=text], input[type=password], input[type=email], input[type=search],
  input[type=file], select, textarea {
    font-size: 16px !important;
    padding: .6rem .7rem;
    max-width: 100%;
    box-sizing: border-box;
  }
  .noir-form-group, .form-group { margin-bottom: .7rem; }
  .noir-label, label { font-size: .82rem; }

  /* ── 导航站 hero ── */
  .hero { padding: 1.6rem .9rem 1rem !important; }
  .hero h1 { font-size: 1.5rem !important; }
  .hero .hero-badge { font-size: .65rem; }
  .hero p { font-size: .85rem; }
  .grid, .nav-cards, .nav-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: .6rem !important;
  }
  .nav-card { padding: .9rem .7rem !important; }
  .nav-card h3 { font-size: .88rem !important; }
  .nav-card p { font-size: .7rem !important; }
  .nav-card .icon { width: 28px !important; height: 28px !important; }

  /* ── 同学录（实际类名）── */
  .class-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 10px !important; }
  .class-grid-wrap { padding: 0 10px 36px !important; }
  .class-card { padding: .8rem !important; }
  .class-card .card-name { font-size: .95rem !important; }
  .class-card .card-gender { font-size: .75rem !important; }
  .class-card .card-avatar, .class-card .avatar-preview-wrap { width: 46px !important; height: 46px !important; }

  /* ── 相册 ── */
  .al-hdr { padding: 22px 10px 10px !important; }
  .al-hdr h1 { font-size: 1.3rem !important; }
  .al-bar { padding: 0 10px 10px !important; gap: .4rem !important; flex-wrap: wrap; }
  .al-btn { padding: .45rem .7rem !important; font-size: .78rem !important; }
  .al-tabs { flex-wrap: wrap; gap: .35rem; padding: 0 10px !important; }
  .al-tabs .al-tab, .al-tabs .tab { padding: .4rem .75rem !important; font-size: .78rem !important; }
  .al-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 8px !important; padding: 0 10px !important; }
  .al-photo img { border-radius: 8px; }
  .sp-wrap { width: 100vw !important; border-radius: 0 !important; }
  .sp-stage video, .sv-stage img { max-height: 44vh !important; }
  .sp-controls { flex-wrap: wrap; padding: 6px 8px; }
  .sp-time { display: none; }
  .sp-brand { font-size: .64rem; }

  /* ── 语音室 ── */
  .voice-salon-grid { grid-template-columns: 1fr !important; gap: 10px !important; margin-top: 10px !important; }
  .noir-card-header { padding: .6rem .8rem !important; }

  /* ── AI 聊天 ── */
  #sidebar { width: 80vw !important; min-width: 80vw !important; }
  .noir-message-bubble { max-width: 92% !important; }
  #toolbar, #input-area { padding: .5rem .6rem !important; }

  /* ── 音乐 ── */
  .player { width: 100% !important; border-radius: 16px 16px 0 0 !important; }
  .playlist { padding: .4rem !important; }
  .playlist-item { padding: .45rem .6rem !important; }

  /* ── 图灵测试 ── */
  .tt-grid { grid-template-columns: 1fr !important; gap: .6rem; }
  .tt-panel { min-height: 220px !important; }

  /* ── 账户页 ── */
  .acct-wrap { padding: 0 10px !important; }
  .acct-card { border-radius: 16px !important; }
  .acct-topbar { flex-wrap: wrap; gap: 10px; padding: 14px !important; }
  .acct-topbar .avatar-circle { width: 44px !important; height: 44px !important; font-size: 1.15rem !important; }
  .acct-topbar #refreshBtn { padding: .4rem .8rem !important; font-size: .78rem !important; margin-left: auto; }
  .acct-topbar #topbarRole { width: 100%; }
  .acct-body { min-height: 0 !important; }
  .acct-menu { gap: 2px !important; padding: 6px !important; }
  .acct-menu button { white-space: nowrap; flex: 0 0 auto; padding: .5rem .75rem !important; font-size: .8rem !important; gap: 4px; }
  .acct-menu .menu-icon { width: 15px !important; height: 15px !important; }
  .acct-content { padding: 14px 12px !important; }
  .acct-content .panel, .acct-content .noir-card { padding: .8rem !important; }
  .acct-content .section-label { font-size: .85rem !important; margin: 1.2rem 0 .6rem !important; }
  .profile-row { flex-wrap: wrap; gap: .3rem; padding: .45rem 0 !important; }
  .profile-row .pv { font-size: .8rem; }
  .status-badge, .sinh-role-badge { font-size: .72rem !important; padding: 2px 8px !important; }
  .role-user-row { flex-wrap: wrap; gap: .4rem !important; padding: .5rem 0 !important; }
  .grant-btn { padding: .35rem .7rem !important; font-size: .75rem !important; }

  /* ── 博客 ── */
  .blog-grid { grid-template-columns: 1fr !important; gap: 10px !important; padding: 0 10px 32px !important; }
  .blog-card { padding: .8rem !important; }
  .blog-header { padding: 20px 10px 8px !important; }
  .blog-bar { padding: 0 10px !important; flex-wrap: wrap; gap: .4rem; }

  /* ── 工具页 ── */
  .tool-box { padding: .8rem !important; }

  /* ── 弹窗/Toast ── */
  .sinh-modal-box { width: 92vw !important; padding: 18px 16px !important; }
  #sinhToastWrap { top: 64px; right: 8px; max-width: 86vw; }

  /* ── 表格与长内容：防溢出 ── */
  table { display: block; overflow-x: auto; white-space: nowrap; }
  pre, code { max-width: 100%; overflow-x: auto; }

  /* ── 安全区（刘海屏）── */
  .navbar, #siteNav { padding-top: env(safe-area-inset-top); }
  body.has-nav { padding-top: calc(52px + env(safe-area-inset-top)); }
}

/* ═══ 手机端导航栏（完整重写，覆盖历史规则）═══ */
@media (max-width: 768px) {
  #siteNav .container {
    display: flex !important;
    align-items: center;
    gap: 6px !important;
    flex-wrap: nowrap !important;
    padding: 0 8px !important;
  }
  #siteNav .nav-back {
    padding: .28rem .5rem !important;
    font-size: .72rem !important;
    flex: 0 0 auto;
    white-space: nowrap;
  }
  #siteNav .nav-logo {
    font-size: .88rem !important;
    gap: 5px !important;
    margin-right: auto;
    flex: 0 1 auto;
    min-width: 0;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  #siteNav .nav-logo-icon { width: 22px !important; height: 22px !important; }
  #siteNav .nav-sel-btn { padding: .25rem .5rem !important; font-size: .72rem !important; }
  #siteNav .btn-primary, #siteNav .btn {
    padding: .28rem .55rem !important;
    font-size: .72rem !important;
    border-radius: 8px !important;
  }
  #siteNav .menu-toggle { padding: 5px 7px !important; flex: 0 0 auto; }
  #siteNav .nav-sel { flex: 0 0 auto; }
}