/* 俄交助手 · 深色科技风（方案 D） */
:root{
  --bg:#141d38; --bg-2:#1c2648; --card:rgba(255,255,255,.075); --card-solid:#1d2749;
  --text:#eef2ff; --ink:#eef2ff; --muted:#a9b6dd;
  --line:rgba(160,175,205,.32);
  --primary:#22d3ee; --primary-dark:#67e8f9; --primary-soft:rgba(34,211,238,.14);
  --violet:#a78bfa; --pink:#f472b6; --green:#34d399; --amber:#fbbf24; --red:#fb7185;
  --radius:16px; --shadow:0 10px 40px rgba(34,211,238,.08);
  --mobile-nav-h:104px; /* 手机底部标签栏高度（运行时会按真实高度更新） */
}
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--bg)}
html,body{height:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Segoe UI",system-ui,sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 620px at 8% -12%, rgba(88,48,168,.42) 0%, transparent 60%),
    radial-gradient(900px 520px at 100% 0%, rgba(14,74,96,.55) 0%, transparent 58%),
    radial-gradient(700px 400px at 50% 110%, rgba(44,42,102,.45) 0%, transparent 60%),
    var(--bg);
  display:flex;height:100vh;overflow:hidden;
}
button,input,textarea,select{font-family:inherit}
::selection{background:rgba(34,211,238,.35)}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:rgba(148,163,184,.25);border-radius:999px}
::-webkit-scrollbar-track{background:transparent}
a{color:var(--primary-dark)}

/* ---------- 侧边栏 ---------- */
.sidebar{width:252px;flex-shrink:0;padding:18px 14px;display:flex;flex-direction:column;
  background:rgba(22,31,60,.82);backdrop-filter:blur(14px);border-right:1px solid var(--line)}
.brand{display:flex;gap:10px;align-items:center;padding:4px 6px 16px;border-bottom:1px solid var(--line);margin-bottom:12px}
.logo{width:42px;height:42px;border-radius:13px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:20px;
  background:linear-gradient(135deg,var(--primary),var(--violet));box-shadow:0 6px 20px rgba(34,211,238,.25)}
.brand-name{font-weight:700;font-size:16px;letter-spacing:.4px}
.brand-sub{font-size:11px;color:var(--muted);margin-top:2px}
nav{display:flex;flex-direction:column;gap:4px}
.nav-btn{display:flex;align-items:center;gap:10px;padding:10px 12px;border:1px solid transparent;background:transparent;
  border-radius:12px;font-size:14px;color:var(--muted);cursor:pointer;text-align:left;transition:.18s}
.nav-btn:hover{background:rgba(255,255,255,.085);color:var(--text)}
.nav-btn.active{background:linear-gradient(90deg,rgba(34,211,238,.16),rgba(167,139,250,.12));
  border-color:rgba(34,211,238,.35);color:#fff;font-weight:600}
.badge{margin-left:auto;background:linear-gradient(90deg,var(--primary),var(--violet));color:#04121a;
  border-radius:999px;font-size:11px;padding:1px 8px;font-weight:700}
.auth-box{margin-top:14px;padding:12px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.055)}
.auth-hint{font-size:12px;color:var(--muted);line-height:1.6}
.auth-mail{font-size:12px;color:var(--primary-dark);word-break:break-all;margin-bottom:2px}
.side-note{margin-top:12px;font-size:11px;line-height:1.7;color:#dbf7ff;background:rgba(34,211,238,.10);
  border:1px solid rgba(34,211,238,.28);border-radius:12px;padding:9px 10px}
aside a{color:var(--primary-dark)}

/* ---------- 通用 ---------- */
main{flex:1;display:flex;flex-direction:column;min-width:0}
.view{display:none;height:100%;flex-direction:column;overflow:auto}
.view.active{display:flex}
.btn{border:0;border-radius:12px;padding:10px 16px;font-size:13px;font-weight:600;cursor:pointer;
  background:linear-gradient(90deg,var(--primary),var(--violet));color:#04121a;transition:.18s}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:rgba(255,255,255,.085);color:var(--text);border:1px solid var(--line);font-weight:500}
.btn.ghost:hover{border-color:rgba(34,211,238,.5);color:#fff;background:rgba(34,211,238,.10)}
.btn.small{padding:6px 12px;font-size:12px;border-radius:10px}
.btn.block{width:100%;margin-top:10px}
.btn.danger{background:rgba(251,113,133,.12);border:1px solid rgba(251,113,133,.5);color:#ffd7de}
.btn:disabled{opacity:.45;cursor:not-allowed;filter:none}
.muted{color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  backdrop-filter:blur(12px);box-shadow:var(--shadow)}
.note{font-size:12px;color:#ffe9b8;background:rgba(251,191,36,.10);border:1px solid rgba(251,191,36,.35);
  border-radius:12px;padding:9px 12px;line-height:1.7;margin-top:10px}
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%);z-index:120;
  background:rgba(8,11,26,.92);color:#fff;border:1px solid rgba(34,211,238,.45);border-radius:999px;
  padding:10px 20px;font-size:13px;box-shadow:0 10px 30px rgba(0,0,0,.5)}
.toast.error{border-color:rgba(251,113,133,.6);color:#ffd7de}
h1,h2,h3,h4{font-weight:700}
code{background:rgba(255,255,255,.11);border-radius:6px;padding:1px 6px;font-size:12px;color:var(--primary-dark)}

/* ---------- 智能问答 ---------- */
.chat-top{flex-shrink:0;display:flex;align-items:center;gap:12px;padding:12px 22px;
  background:rgba(22,31,60,.72);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.chat-avatar{width:42px;height:42px;border-radius:13px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:20px;
  background:linear-gradient(135deg,var(--primary),var(--violet));box-shadow:0 6px 20px rgba(34,211,238,.22)}
.chat-title{font-weight:700;color:#fff}
.chat-status{font-size:12px;color:var(--green)}
.chat-status.off{color:var(--amber)}
.chat-log{flex:1;overflow-y:auto;padding:22px;display:flex;flex-direction:column;gap:14px}
.chat-panel{flex-shrink:0;background:rgba(22,31,60,.72);backdrop-filter:blur(12px);border-top:1px solid var(--line)}
.quick-area{display:flex;flex-wrap:wrap;gap:8px;padding:10px 22px 2px}
.msg{display:flex;gap:10px;max-width:80%}
.msg.user{align-self:flex-end;flex-direction:row-reverse}
.msg .avatar{width:34px;height:34px;border-radius:11px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:16px;
  background:rgba(255,255,255,.095);border:1px solid var(--line)}
.msg.user .avatar{background:linear-gradient(135deg,var(--pink),var(--violet));border:0}
.bubble{padding:11px 15px;border-radius:16px;font-size:14px;line-height:1.8;word-break:break-word;white-space:pre-wrap;
  background:rgba(255,255,255,.085);border:1px solid var(--line);color:var(--text);box-shadow:0 6px 22px rgba(0,0,0,.25)}
.msg.bot .bubble{border-bottom-left-radius:4px}
.msg.user .bubble{background:linear-gradient(135deg,var(--primary),#38bdf8);color:#04121a;border:0;border-bottom-right-radius:4px;font-weight:500}
.bubble .src{font-size:11px;color:var(--muted);border-top:1px dashed var(--line);margin-top:8px;padding-top:6px;font-weight:400}
.bubble .disclaimer{font-size:11px;color:var(--muted);margin-top:6px;font-weight:400}
.msg.user .bubble .src,.msg.user .bubble .disclaimer{color:rgba(4,18,26,.68);border-color:rgba(4,18,26,.22)}
.typing .bubble{display:flex;gap:5px;align-items:center;padding:14px}
.typing .dot{width:7px;height:7px;border-radius:50%;background:rgba(148,163,184,.6);animation:blink 1.2s infinite}
.typing .dot:nth-child(2){animation-delay:.2s}.typing .dot:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}
.chip{border:1px solid var(--line);background:rgba(255,255,255,.085);color:var(--text);padding:7px 13px;border-radius:999px;
  font-size:13px;cursor:pointer;transition:.18s}
.chip:hover{border-color:rgba(34,211,238,.55);color:#fff;background:rgba(34,211,238,.12)}
.chip.active{background:linear-gradient(90deg,rgba(34,211,238,.22),rgba(167,139,250,.18));
  border-color:rgba(34,211,238,.55);color:#fff;font-weight:600}
.input-bar{display:flex;gap:10px;padding:12px 22px 16px}
#chatInput{flex:1;border:1px solid var(--line);border-radius:12px;padding:12px 16px;font-size:14px;
  background:rgba(255,255,255,.085);color:var(--text);outline:none}
#chatInput::placeholder{color:rgba(147,160,200,.7)}
#chatInput:focus{border-color:rgba(34,211,238,.6);box-shadow:0 0 0 3px rgba(34,211,238,.12)}
#sendBtn{border:0;border-radius:12px;padding:0 24px;font-size:14px;font-weight:700;cursor:pointer;
  background:linear-gradient(90deg,var(--primary),var(--violet));color:#04121a}
#sendBtn:hover{filter:brightness(1.08)}

/* ---------- 页面标题 / 列表 ---------- */
.view-head{flex-shrink:0;padding:18px 24px 12px;background:rgba(22,31,60,.68);border-bottom:1px solid var(--line)}
.view-head h2{font-size:19px;display:flex;align-items:center;gap:8px;color:#fff}
.view-head p{color:var(--muted);font-size:13px;margin-top:5px;line-height:1.7}
.chip-row{display:flex;gap:8px;flex-wrap:wrap;padding:12px 24px;background:rgba(22,31,60,.55);border-bottom:1px solid var(--line);flex-shrink:0}
.chip-row input[type=search]{background:rgba(255,255,255,.085);border:1px solid var(--line);border-radius:999px;
  padding:8px 14px;color:var(--text);flex:1;min-width:200px;outline:none;font-size:13px}
.chip-row input[type=search]::placeholder{color:rgba(147,160,200,.7)}
.chip-row input[type=search]:focus{border-color:rgba(34,211,238,.55)}
.project-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px;padding:20px 24px;align-content:start}
.proj-card{padding:18px;display:flex;flex-direction:column;gap:10px}
.proj-card h3{font-size:16px;color:#fff}
.proj-card .sub{font-size:12px;color:var(--muted)}
.proj-card .intro{font-size:13px;line-height:1.75;color:#d9e2ff;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.proj-meta{display:grid;grid-template-columns:1fr 1fr;gap:6px 12px;font-size:12px;color:var(--muted)}
.proj-meta b{color:var(--text);font-weight:600}
.proj-actions{display:flex;gap:8px;margin-top:auto;flex-wrap:wrap}
.proj-actions .btn{flex:1;min-width:110px}
.tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{font-size:11px;border:1px solid rgba(34,211,238,.4);color:var(--primary-dark);border-radius:999px;padding:2px 10px;background:rgba(34,211,238,.08)}
.tag.amber{border-color:rgba(251,191,36,.45);color:#fcd34d;background:rgba(251,191,36,.10)}
.tag.cyan{border-color:rgba(52,211,153,.45);color:#6ee7b7;background:rgba(52,211,153,.10)}

/* ---------- 弹层 ---------- */
.modal-mask{position:fixed;inset:0;z-index:90;display:flex;align-items:flex-start;justify-content:center;
  padding:6vh 16px;overflow:auto;background:rgba(8,13,30,.58);backdrop-filter:blur(6px)}
.modal{position:relative;width:100%;max-width:760px;border-radius:20px;padding:20px 24px;
  background:linear-gradient(180deg,rgba(34,45,86,.98),rgba(24,33,66,.98));
  border:1px solid rgba(34,211,238,.28);box-shadow:0 20px 60px rgba(0,0,0,.6)}
.modal-close{position:absolute;right:14px;top:12px;width:32px;height:32px;border-radius:10px;cursor:pointer;
  border:1px solid var(--line);background:rgba(255,255,255,.095);color:var(--text);font-size:14px}
.modal-close:hover{border-color:rgba(251,113,133,.6);color:#ffd7de}
.modal-body{line-height:1.85}
.detail-head{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:12px}
.detail-head h3{color:#fff;font-size:17px}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 18px;font-size:13px;margin:12px 0;color:#d9e2ff}
.detail-grid b{color:#fff}
.mini-list{list-style:none;font-size:13px;line-height:1.95;color:#d9e2ff}
.mini-list li::before{content:"• ";color:var(--primary)}
.mini-list li{padding:2px 0}
.step{font-size:13px;border-left:2px solid rgba(34,211,238,.4);padding:0 0 12px 14px;margin-left:6px}
.step .st{font-weight:600;color:#fff}
.step .sd{font-size:12px;color:var(--amber);font-weight:600}
.step .desc{font-size:12px;color:var(--muted)}

/* ---------- 匹配结果 ---------- */
.match-card{border:1px solid var(--line);border-radius:14px;padding:13px 15px;margin-top:10px;background:rgba(255,255,255,.065)}
.match-card.ok{border-color:rgba(52,211,153,.45);background:rgba(52,211,153,.07)}
.match-card.no{border-color:rgba(251,113,133,.4);background:rgba(251,113,133,.06)}
.match-card .mc-head{display:flex;justify-content:space-between;gap:8px;font-weight:700;color:#fff}
.reason-list,.gap-list{font-size:12px;margin-top:6px;list-style:none;line-height:1.85}
.reason-list{color:#a7f3d0}.reason-list li::before{content:"✔ ";color:var(--green)}
.gap-list{color:#fecdd3}.gap-list li::before{content:"✖ ";color:var(--red)}
.match-actions{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}

/* ---------- 我的计划 ---------- */
.plan-list{padding:20px 24px;display:flex;flex-direction:column;gap:16px}
.plan-card{padding:18px}
.plan-card .pc-head{display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap}
.plan-card b{color:#fff}
.plan-cols{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:12px}
.progress{height:8px;border-radius:999px;overflow:hidden;margin:8px 0;background:rgba(255,255,255,.13)}
.progress i{display:block;height:100%;border-radius:999px;transition:width .3s;
  background:linear-gradient(90deg,var(--primary),var(--violet))}
.check-item{display:flex;gap:10px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:13px;align-items:flex-start}
.check-item input{margin-top:3px;accent-color:var(--primary)}
.check-item .name{flex:1;color:#d9e2ff}
.check-item.done .name{color:var(--muted)}
.check-item small{display:block;color:var(--muted);margin-top:2px}
.empty-card{margin:20px 24px;padding:40px 20px;text-align:center;color:var(--muted);border-radius:16px;
  background:rgba(255,255,255,.095);border:1px dashed var(--line)}
.empty-card p{margin-bottom:14px}

/* ---------- 文书 ---------- */
.essay-wrap{display:grid;grid-template-columns:minmax(300px,420px) 1fr;gap:18px;padding:20px 24px;align-items:start}
.form-card{padding:18px;display:flex;flex-direction:column;gap:12px}
label{font-size:13px;color:#d9e2ff;display:flex;flex-direction:column;gap:6px}
input,textarea,select{border:1px solid var(--line);border-radius:12px;padding:11px 13px;font-size:14px;width:100%;outline:none;
  background:rgba(255,255,255,.085);color:var(--text)}
select option{background:#1d2749;color:#eef2ff}
input::placeholder,textarea::placeholder{color:rgba(147,160,200,.65)}
input:focus,textarea:focus{border-color:rgba(34,211,238,.6);box-shadow:0 0 0 3px rgba(34,211,238,.12)}
.result-card{padding:18px;line-height:1.85}
.part{border:1px solid var(--line);border-radius:14px;padding:13px 15px;margin:12px 0;background:rgba(255,255,255,.055)}
.part h4{color:var(--primary-dark);margin:0 0 6px;font-size:14px}
.part .guide{font-size:12px;color:var(--muted)}
.part .skel{font-size:13px;background:rgba(255,255,255,.085);border:1px solid var(--line);border-radius:10px;padding:11px;margin-top:8px;white-space:pre-wrap;color:#e4eaff}
.auth-modal{max-width:430px}
.auth-modal h3{margin-bottom:6px;color:#fff}
.code-row{display:flex;gap:8px;margin-top:10px}
.auth-modal input,.auth-modal textarea{margin-top:10px}

/* ---------- 管理端 ---------- */
#adminDashboardBody span,#adminPrograms li{color:#d9e2ff}
#adminPrograms li b{color:#fff}
#adminDashboard h3,#adminReviews h3,#adminProgramsWrap h3{color:var(--primary-dark)}
code{color:var(--primary-dark)}

/* ---------- 翻译 ---------- */
.tr-lang-row{display:flex;gap:10px;align-items:flex-end}
.tr-lang{flex:1;min-width:0}
.tr-swap{flex:0 0 auto;width:44px;height:44px;padding:0;font-size:16px;line-height:1}
.tr-input-label{position:relative}
.tr-counter{position:absolute;right:10px;bottom:9px;font-size:11px;color:var(--muted);pointer-events:none}
.tr-actions{display:flex;gap:8px;flex-wrap:wrap}
.tr-actions .tr-primary{flex:1;min-width:120px}
.tr-result-head{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.tr-route{font-size:12px;color:var(--primary-dark)}
.tr-result{white-space:pre-wrap;min-height:80px;margin-top:8px;font-size:15px;line-height:1.9;color:var(--text)}
.tr-result-actions{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.gloss-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px;margin-top:10px}
.gloss-item{border:1px solid var(--line);border-radius:12px;padding:9px 12px;background:rgba(255,255,255,.05)}
.gloss-item .zh{font-weight:700;color:var(--text)}
.gloss-item .ru{color:var(--primary-dark);margin-top:3px;word-break:break-word}
.gloss-item .en{color:var(--muted);font-size:12px;margin-top:2px}

/* ---------- 手机适配（≤900px：底部标签栏 + 全屏弹层 + 单列卡片） ---------- */
@media (max-width:900px){
  body{flex-direction:column;height:100vh;height:100dvh;overflow:hidden;overflow-x:hidden;-webkit-text-size-adjust:100%;
    padding-top:env(safe-area-inset-top);overscroll-behavior:none}

  /* 侧边栏 -> 底部标签栏（含访客/账号一行） */
  .sidebar{position:fixed;left:0;right:0;bottom:0;width:100%;height:auto;z-index:70;
    flex-direction:column;gap:4px;padding:5px 10px 5px;  /* 不留底部空白，标签栏贴底 */
    border-right:0;border-top:1px solid var(--line);background:rgba(20,29,56,.97);backdrop-filter:blur(16px)}
  .brand,.side-note{display:none}
  nav{flex-direction:row;gap:2px;margin:0;overflow:visible}
  .nav-btn{position:relative;flex:1 1 0;min-width:0;flex-direction:column;align-items:center;gap:2px;
    padding:5px 2px 4px;font-size:10px;text-align:center;border-radius:12px;white-space:nowrap}
  .nav-btn span{display:block;font-size:18px;line-height:1.1}
  .nav-btn .badge{position:absolute;top:2px;right:8px;margin:0}
  .auth-box{margin:0;padding:0 0 2px;border:0;background:transparent;display:flex;align-items:center;gap:6px;justify-content:center}
  .auth-hint{display:none}
  .auth-mail{flex:1;margin:0;font-size:11px;text-align:center;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .auth-box > div{display:flex;align-items:center;gap:8px;width:100%;justify-content:center}
  .auth-box .btn{margin:0;width:auto;padding:5px 10px;font-size:11px;white-space:nowrap}

  /* 主区域留出底部栏高度 */
  main{flex:1;min-height:0;padding-bottom:var(--mobile-nav-h)}  /* 标签栏实测高度已含底部安全区，避免重复留白 */
  .view{padding-bottom:0}

  /* 问答：紧凑 + 输入不缩放 */
  .chat-top{padding:10px 14px;gap:10px;position:sticky;top:0;z-index:20}
  .chat-avatar{width:36px;height:36px;font-size:18px;border-radius:11px}
  .chat-title{font-size:15px}
  .chat-log{padding:14px;gap:12px}
  .msg{max-width:94%}
  .msg .avatar{width:30px;height:30px;font-size:15px}
  .bubble{font-size:14px;padding:10px 13px}
  .quick-area{padding:8px 14px 2px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
  .quick-area::-webkit-scrollbar{display:none}
  .quick-area .chip{flex:0 0 auto}
  .input-bar{padding:10px 14px;gap:8px}
  #chatInput{font-size:16px;padding:11px 14px}  /* ≥16px 防止 iOS 自动放大 */
  #sendBtn{padding:0 18px;font-size:14px}

  /* 列表与筛选：横向滑动，卡片单列 */
  .view-head{padding:14px 16px 10px}
  .view-head h2{font-size:17px}
  .view-head p{font-size:12px}
  .chip-row{padding:10px 14px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
  .chip-row::-webkit-scrollbar{display:none}
  .chip-row .chip{flex:0 0 auto;min-height:36px}
  .chip-row input[type=search]{min-width:180px;font-size:16px}
  .project-grid{grid-template-columns:1fr;padding:14px;gap:12px}
  .proj-card{padding:16px}
  .proj-actions .btn{flex:1 1 45%}
  .plan-list{padding:14px}
  .plan-cols,.essay-wrap,.detail-grid{grid-template-columns:1fr}
  .essay-wrap{padding:14px;gap:14px}
  .empty-card{margin:14px}
  #planInfo{margin:14px 14px 0}
  #planReset{margin:0 14px 20px}

  /* 弹层 -> 底部全屏面板 */
  .modal-mask{align-items:flex-end;padding:0}
  .modal{max-width:100%;max-height:calc(92dvh - env(safe-area-inset-top));overflow:auto;border-radius:22px 22px 0 0;
    padding:20px 18px calc(20px + env(safe-area-inset-bottom));border-left:0;border-right:0;border-bottom:0}
  .auth-modal{max-width:100%}
  .modal-close{top:14px;right:14px;width:34px;height:34px}
  .toast{bottom:calc(var(--mobile-nav-h) + 12px);max-width:92vw;text-align:center}

  /* 管理端：面板边距与横向滚动 */
  #adminDashboard,#adminReviews,#adminProgramsWrap{margin:0 14px 14px !important}
  .admin-wrap{padding:14px}
  .detail-grid{grid-template-columns:1fr}

  /* 触控目标 */
  .btn{min-height:38px}
  .chip{min-height:34px}
}

  /* 翻译页：手机紧凑布局 */
  .tr-wrap{padding:12px;gap:10px}
  .tr-form{padding:14px;gap:10px}
  .tr-lang-row{gap:6px;flex-wrap:wrap}
  .tr-lang{flex:1 1 120px;min-width:0}
  .tr-swap{width:38px;height:38px}
  .tr-lang select{font-size:16px;padding:10px}
  .tr-swap{width:40px;height:40px;font-size:15px}
  #trInput{font-size:16px;min-height:116px}
  .tr-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .tr-actions .btn{min-height:42px;font-size:13px;padding:8px 10px}
  .tr-actions .tr-primary{grid-column:1/-1;font-size:15px}
  .tr-result-card{padding:14px}
  .tr-result{min-height:120px;word-break:break-word;overflow-wrap:anywhere}
  .tr-result-actions .btn{flex:1}
  .gloss-list{grid-template-columns:1fr;gap:8px}
  .gloss-item{padding:8px 10px;font-size:13px}
  .tr-counter{bottom:8px}

@media (max-width:480px){
  .nav-btn{min-width:56px;font-size:10px;padding:6px 6px}
  .nav-btn span{font-size:17px}
  .auth-box .btn{font-size:11px;padding:6px 10px}
  .proj-actions .btn{flex:1 1 100%}
  .view-head h2{font-size:16px}
  .chat-log{padding:12px}
}

/* 保证 hidden 属性始终生效（避免 display:flex 等覆盖导致弹窗关不掉） */
[hidden]{display:none !important}