/* ==========================================================================
   BITBOSS Design System · v1.0 (2026-11-07)
   Dark trading UI · 深色 · 数据密度高 · 等宽数字 + 中文无衬线
   ========================================================================== */
:root{
  --bg:#04070d; --bg2:#050b14; --panel:#0a1926; --panel2:#071320; --panel3:#0d2133;
  --line:rgba(56,189,248,.13); --line2:rgba(56,189,248,.26); --line3:rgba(56,189,248,.42);
  --cyan:#38e1ff; --cyan2:#7fe9ff; --green:#00e58f; --red:#ff2d5e; --amber:#ffb62e; --violet:#8b7dff;
  --txt:#e6f7fd; --txt2:#b9d6e4; --dim:#7b9bb1; --faint:#42596c;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --sans:"PingFang SC","Hiragino Sans GB",-apple-system,"Helvetica Neue",Arial,sans-serif;
  --sidebar:224px; --radius:2px;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{
  background:
    radial-gradient(1100px 620px at 46% -10%, rgba(0,92,132,.30), transparent 62%),
    radial-gradient(900px 560px at 100% 100%, rgba(0,74,110,.16), transparent 70%),
    var(--bg);
  color:var(--txt); font:13px/1.55 var(--sans); -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:rgba(56,189,248,.18)}
::-webkit-scrollbar-track{background:transparent}

/* ---------- app shell ---------- */
.app{display:grid;grid-template-columns:var(--sidebar) 1fr;min-height:100vh}
.sidebar{
  border-right:1px solid var(--line);background:linear-gradient(180deg,rgba(7,19,32,.9),rgba(4,10,18,.92));
  display:flex;flex-direction:column;padding:16px 0 12px;position:sticky;top:0;height:100vh;
}
.brand{display:flex;align-items:center;gap:10px;padding:0 16px 18px}
.brand .mark{width:30px;height:30px;display:grid;place-items:center;transform:rotate(45deg);
  border:1px solid rgba(56,225,255,.45);background:radial-gradient(circle,rgba(56,225,255,.16),transparent 70%);
  box-shadow:0 0 14px rgba(56,225,255,.22);flex:none}
.brand .mark span{transform:rotate(-45deg);font:700 15px var(--mono);color:#c8f4ff}
.brand .brand-logo{width:38px;height:38px;flex:none;object-fit:contain;
  filter:drop-shadow(0 0 9px rgba(255,190,60,.45))}
@media(max-width:520px){.brand .brand-logo{width:31px;height:31px}}
.brand b{display:block;font:700 13px var(--mono);letter-spacing:.10em;color:#e8fcff;white-space:nowrap}
.brand small{display:block;font:500 8.5px var(--mono);letter-spacing:.2em;color:var(--faint);margin-top:2px}
.nav{flex:1;overflow:auto}
.nav-group{padding:10px 16px 4px;font:600 9px var(--mono);letter-spacing:.18em;color:var(--faint)}
.nav a{display:flex;align-items:center;gap:9px;padding:8px 16px;color:var(--dim);font-size:12.5px;
  border-left:2px solid transparent;position:relative}
.nav a:hover{color:var(--txt);background:rgba(56,189,248,.04)}
.nav a.on{color:#eafcff;background:linear-gradient(90deg,rgba(56,225,255,.10),transparent 80%);
  border-left-color:var(--cyan)}
.nav a i{width:14px;text-align:center;font-style:normal;opacity:.85}
.nav a em{margin-left:auto;font:600 9px var(--mono);letter-spacing:.06em;color:var(--green);
  border:1px solid rgba(0,229,143,.35);padding:1px 5px;font-style:normal}
.side-foot{padding:12px 16px 0;border-top:1px solid var(--line);margin-top:8px}
.plan-chip{display:flex;align-items:center;justify-content:space-between;gap:8px;
  border:1px solid rgba(0,229,143,.3);background:rgba(0,229,143,.06);padding:8px 10px}
.plan-chip b{font:700 10px var(--mono);letter-spacing:.1em;color:#c9ffe9}
.plan-chip span{font:500 9.5px var(--mono);color:var(--dim)}
.user{display:flex;align-items:center;gap:9px;margin-top:12px;color:var(--txt2);font-size:12px}
.avatar{width:26px;height:26px;border-radius:50%;background:linear-gradient(135deg,#0e4a63,#0a2333);
  border:1px solid var(--line3);display:grid;place-items:center;font:600 10px var(--mono);color:#bfefff;flex:none}

/* ---------- main ---------- */
.main{min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;gap:14px;padding:12px 22px;border-bottom:1px solid var(--line);
  background:rgba(5,12,21,.7);position:sticky;top:0;z-index:20;backdrop-filter:blur(6px)}
.topbar h1{font:600 15px var(--sans);margin:0;letter-spacing:.02em}
.topbar .crumb{font:500 10px var(--mono);letter-spacing:.12em;color:var(--faint);text-transform:uppercase}
.topbar .spacer{flex:1}
.tb-status{display:flex;align-items:center;gap:7px;font:600 9.5px var(--mono);letter-spacing:.1em;
  color:#9fffd6;border:1px solid rgba(0,229,143,.35);background:rgba(0,229,143,.07);padding:5px 9px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green)}
.dot.red{background:var(--red);box-shadow:0 0 8px var(--red)}
.dot.amber{background:var(--amber);box-shadow:0 0 8px var(--amber)}
.icon-btn{width:30px;height:30px;display:grid;place-items:center;border:1px solid var(--line);
  background:transparent;color:var(--dim);cursor:pointer}
.icon-btn:hover{border-color:var(--line3);color:var(--txt)}
.content{padding:18px 22px 34px;flex:1;min-width:0}

/* ---------- grid / layout ---------- */
.grid{display:grid;gap:14px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g23{grid-template-columns:2fr 3fr}
.g32{grid-template-columns:3fr 2fr}
.g31{grid-template-columns:2.1fr 1fr}
.stack{display:flex;flex-direction:column;gap:14px}
.row{display:flex;align-items:center;gap:10px}
.row.wrap{flex-wrap:wrap}
.push{flex:1}
@media(max-width:1280px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:980px){.app{grid-template-columns:1fr}.sidebar{display:flex}
  .g2,.g3,.g23,.g32,.g31{grid-template-columns:1fr}}

/* ---------- card ---------- */
.card{position:relative;border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,28,46,.72),rgba(4,12,22,.9));padding:14px 16px}
.card.hot{border-color:rgba(0,229,143,.34)}
.card::before,.card::after{content:"";position:absolute;width:10px;height:10px;pointer-events:none;
  border-color:var(--line3);border-style:solid;opacity:.85}
.card::before{top:-1px;left:-1px;border-width:1px 0 0 1px}
.card::after{bottom:-1px;right:-1px;border-width:0 1px 1px 0}
.card-h{display:flex;align-items:center;gap:9px;margin:0 0 12px}
.card-h h3{margin:0;font:600 11px var(--mono);letter-spacing:.18em;color:var(--cyan);text-transform:uppercase}
.card-h .sep{flex:1}
.card-h .meta{font:500 9.5px var(--mono);letter-spacing:.08em;color:var(--faint)}
.tag{font:600 8.5px var(--mono);letter-spacing:.1em;padding:2px 6px;border:1px solid currentColor;color:var(--dim)}
.tag.live{color:#9dffdb;border-color:rgba(0,229,143,.45);background:rgba(0,229,143,.08)}
.tag.paper{color:#ffe2ac;border-color:rgba(255,182,46,.45);background:rgba(255,182,46,.08)}
.tag.sim{color:#c9c0ff;border-color:rgba(139,125,255,.45);background:rgba(139,125,255,.08)}
.tag.risk{color:#ffb3c4;border-color:rgba(255,45,94,.45);background:rgba(255,45,94,.08)}

/* ---------- stat / kpi ---------- */
.stat{border:1px solid var(--line);background:rgba(6,20,34,.55);padding:10px 12px}
.stat .k{font:600 9px var(--mono);letter-spacing:.16em;color:var(--faint);text-transform:uppercase}
.stat .v{font:700 22px/1.2 var(--mono);letter-spacing:-.01em;margin-top:5px}
.stat .d{font:500 10px var(--mono);color:var(--dim);margin-top:3px}
.up{color:var(--green)} .down{color:var(--red)} .warn{color:var(--amber)} .muted{color:var(--dim)}
.mono{font-family:var(--mono)} .small{font-size:11px} .xs{font-size:10px}
.bb{font-weight:700} .b{font-weight:600}

/* ---------- buttons ---------- */
.btn{cursor:pointer;border:1px solid var(--line2);background:transparent;color:var(--txt2);
  font:600 11.5px var(--mono);letter-spacing:.06em;padding:8px 14px;display:inline-flex;
  align-items:center;gap:7px;justify-content:center;transition:.15s}
.btn:hover{border-color:var(--line3);color:#eafcff}
.btn.pri{background:linear-gradient(90deg,rgba(0,229,143,.20),rgba(56,225,255,.14));
  border-color:rgba(0,229,143,.5);color:#dcfff2}
.btn.pri:hover{box-shadow:0 0 18px rgba(0,229,143,.18)}
.btn.warn{border-color:rgba(255,182,46,.45);color:#ffe3b0}
.btn.danger{border-color:rgba(255,45,94,.5);color:#ffc3d0}
.btn.ghost{border-color:transparent;color:var(--dim);padding:6px 8px}
.btn.sm{padding:5px 9px;font-size:10px}
.btn.blk{width:100%}
.btn:disabled{opacity:.4;cursor:not-allowed}

/* ---------- table ---------- */
.tbl{width:100%;border-collapse:collapse;font:12px var(--mono)}
.tbl th{font:600 9px var(--mono);letter-spacing:.14em;color:var(--faint);text-transform:uppercase;
  text-align:left;padding:7px 8px;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl td{padding:8px;border-bottom:1px solid rgba(56,189,248,.06);white-space:nowrap}
.tbl tbody tr:hover td{background:rgba(56,189,248,.03)}
.tbl .r{text-align:right}
.tbl td.wrap{white-space:normal}

/* ---------- pills / progress ---------- */
.pill{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);padding:3px 8px;
  font:600 9.5px var(--mono);letter-spacing:.08em;color:var(--dim)}
.pill.on{color:#a6ffdc;border-color:rgba(0,229,143,.35);background:rgba(0,229,143,.06)}
.pill.off{color:#ffc2d0;border-color:rgba(255,45,94,.35);background:rgba(255,45,94,.06)}
.bar{height:6px;background:rgba(56,189,248,.08);overflow:hidden;position:relative}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--cyan))}
.bar.amber>i{background:linear-gradient(90deg,var(--amber),#ff8c42)}
.bar.red>i{background:linear-gradient(90deg,var(--red),#ff6b8a)}

/* ---------- forms ---------- */
.field{display:flex;flex-direction:column;gap:6px}
.field label{font:600 10px var(--mono);letter-spacing:.1em;color:var(--dim);text-transform:uppercase}
.input,select.input,textarea.input{background:#0b1a28;border:1px solid var(--line);color:#eafaff;
  font:500 12.5px var(--mono);padding:9px 11px;outline:none;width:100%}
.input:focus{border-color:var(--line3);box-shadow:0 0 0 1px rgba(56,225,255,.18)}
.input::placeholder{color:#4d6a7e}
.hint{font-size:10.5px;color:var(--faint)}
.err{font-size:10.5px;color:var(--red)}

/* ---------- tabs / segmented ---------- */
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--line)}
.tabs button{border:0;background:transparent;color:var(--dim);font:600 11.5px var(--mono);letter-spacing:.06em;
  padding:9px 14px;cursor:pointer;border-bottom:2px solid transparent}
.tabs button.on{color:#eafcff;border-bottom-color:var(--cyan);background:rgba(56,189,248,.05)}
.seg{display:inline-flex;border:1px solid var(--line);background:rgba(8,24,40,.6)}
.seg button{border:0;background:transparent;color:var(--dim);font:600 10.5px var(--mono);
  letter-spacing:.06em;padding:7px 13px;cursor:pointer}
.seg button.on{background:rgba(56,225,255,.13);color:#eafcff;box-shadow:inset 0 0 0 1px rgba(56,225,255,.28)}

/* ---------- charts ---------- */
.chart{width:100%;display:block}
.legend{display:flex;gap:14px;flex-wrap:wrap;font:500 9.5px var(--mono);color:var(--dim)}
.legend i{display:inline-block;width:14px;height:2px;margin-right:5px;vertical-align:middle}

/* ---------- modal / drawer demo ---------- */
.overlay{position:fixed;inset:0;background:rgba(2,6,12,.72);backdrop-filter:blur(3px);display:none;
  place-items:center;z-index:60}
.overlay.show{display:grid}
.modal{width:min(560px,92vw);border:1px solid var(--line2);background:linear-gradient(180deg,#0b1e2f,#061020);
  padding:18px 20px;box-shadow:0 24px 80px rgba(0,0,0,.6)}
.modal h3{margin:0 0 4px;font:700 14px var(--mono);letter-spacing:.1em;color:#e8fcff}
.modal .sub{color:var(--dim);font-size:11.5px;margin-bottom:14px}

/* ---------- misc ---------- */
.divider{height:1px;background:var(--line);margin:12px 0}
.kbd{font:600 9.5px var(--mono);border:1px solid var(--line2);padding:1px 5px;color:var(--txt2)}
.list{display:flex;flex-direction:column}
.list .it{display:flex;align-items:center;gap:10px;padding:9px 0;border-bottom:1px solid rgba(56,189,248,.07)}
.list .it:last-child{border-bottom:0}
.code{background:#040c15;border:1px solid var(--line);padding:12px;font:11.5px/1.8 var(--mono);
  color:#cfeaf6;overflow:auto}
.code .cm{color:#4f7a90}.code .kw{color:#8b7dff}.code .st{color:#00e58f}.code .fn{color:#38e1ff}
.note{border-left:2px solid var(--amber);background:rgba(255,182,46,.05);padding:9px 12px;
  font-size:11px;color:#ffe3b0;line-height:1.7}
.note.cyan{border-color:var(--cyan);background:rgba(56,225,255,.05);color:#c9f0ff}
.note.red{border-color:var(--red);background:rgba(255,45,94,.06);color:#ffc9d6}
.empty{border:1px dashed var(--line2);padding:22px;text-align:center;color:var(--faint);font-size:11.5px}

/* ==========================================================================
   响应式 · 平板 / 折叠屏 / 手机
   断点：1180（小桌面/横屏折叠）· 980（平板竖屏/展开态折叠）· 760（手机横屏）
        520（手机竖屏/折叠屏收起态）
   ========================================================================== */
@media (max-width:1180px){
  .g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .g3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .g23,.g32,.g31{grid-template-columns:1fr}
  .kpi4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .lead{grid-template-columns:1fr 1fr}
  .credit{grid-template-columns:1fr}
}
@media (max-width:980px){
  .app{grid-template-columns:1fr}
  .sidebar{position:fixed;left:calc(-1 * var(--sidebar) - 8px);top:0;bottom:0;width:var(--sidebar);
    height:100vh;z-index:120;transition:left .22s ease;box-shadow:18px 0 48px rgba(0,0,0,.5)}
  .sidebar.open{left:0}
  .nav-backdrop{position:fixed;inset:0;background:rgba(2,6,12,.62);backdrop-filter:blur(2px);
    z-index:110;display:none}
  .nav-backdrop.show{display:block}
  .menu-btn{display:grid !important}
  .content{padding:14px 14px 30px}
  .topbar{padding:10px 14px;gap:10px}
  .topbar h1{font-size:13.5px}
  .topbar .crumb{font-size:9px;letter-spacing:.1em}
  .tb-status{font-size:8.5px;padding:4px 7px}
  .tb-status .tb-label{display:none}
  .grid{gap:11px}
  .mkt .it{min-width:112px;padding:8px 10px}
  .mkt .p{font-size:13px}
  .set{grid-template-columns:1fr}
  .set-nav{flex-direction:row;overflow-x:auto;border-bottom:1px solid var(--line)}
  .set-nav a{flex:none;border-left:0;border-bottom:2px solid transparent;white-space:nowrap}
  .set-nav a.on{border-bottom-color:var(--cyan)}
  table.tbl{min-width:620px}
  .tbl-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
}
@media (max-width:760px){
  .g2,.g3,.g4,.g23,.g32,.g31{grid-template-columns:1fr}
  .kpi4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .lead{grid-template-columns:1fr;gap:10px}
  .plans,.plan-big{grid-template-columns:1fr}
  .content{padding:12px 12px 26px}
  .card{padding:12px 12px}
  .card-h{margin-bottom:10px;flex-wrap:wrap;row-gap:6px}
  .stat .v{font-size:18px}
  .topbar .pill{display:none}
  .ws{grid-template-columns:1fr}
  .ws .thread{min-height:0}
  .form-tabs{gap:14px}
  .badges{gap:6px}
  .mkt{overflow-x:auto}
  .mkt .it{flex:none;width:124px}
  .auth{grid-template-columns:1fr}
  .auth-left{display:none}
  .auth-right{padding:26px 18px}
  .onb{padding:16px 12px 40px}
  .steps{overflow-x:auto}
  .step{min-width:150px}
}
@media (max-width:520px){
  :root{--sidebar:250px}
  .topbar{padding:9px 11px;gap:8px}
  .topbar h1{font-size:12.5px}
  .topbar .crumb{display:none}
  .topbar .tb-status .dot{margin-right:0}
  .tb-status{padding:4px 6px;font-size:8px}
  .content{padding:10px 10px 24px}
  .card{padding:11px 10px}
  .card::before,.card::after{display:none}
  .stat .v{font-size:17px}
  .stat .k{font-size:8px}
  .hdr-cta .btn{padding:7px 9px;font-size:10px}
  table.tbl{min-width:540px;font-size:11px}
  .tbl th{font-size:8px;padding:6px 6px}
  .tbl td{padding:6px 6px}
  .user{font-size:11px}
  .plan-chip{padding:6px 8px}
  .plan-chip b{font-size:9px}
  .cmt p{margin-left:16px}
  .note{padding:8px 10px;font-size:10.5px}
  .chart{height:auto}
}
/* 移动端顶部菜单按钮（默认隐藏） */
.menu-btn{display:none;width:30px;height:30px;place-items:center;border:1px solid var(--line);
  background:transparent;color:var(--txt2);cursor:pointer;flex:none}
.menu-btn:hover{border-color:var(--line3);color:#eafcff}

/* ==========================================================================
   移动端细节修正：min-width 溢出 / 横向滚动条 / 换行
   ========================================================================== */
@media (max-width:760px){
  .grid > *, .stack, .card, .card-h, .row, .tabs, .seg, .pipe, .lead, .credit{min-width:0}
  .card-h{flex-wrap:wrap;row-gap:7px}
  .card-h .seg{max-width:100%;overflow-x:auto}
  .card-h .meta{white-space:normal}
  .tabs{overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch}
  .tabs button{white-space:nowrap}
  .seg{max-width:100%;overflow-x:auto}
  .row{flex-wrap:wrap;row-gap:7px}
  .credit{grid-template-columns:1fr}
  .agent-row{flex-wrap:wrap;row-gap:5px}
  .agent-row .hint{white-space:normal;text-align:left}
  .pipe{overflow-x:auto}
  .pipe .n{white-space:nowrap}
  .mkt .it{width:132px}
  .steps{display:flex}
  .ws .card-h{row-gap:6px}
  .lead > div{min-width:0}
  .kpi4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .badges .badge{white-space:normal}
}
@media (max-width:520px){
  .card-h .seg{width:100%}
  .card-h .seg button{flex:1}
  .tabs button{padding:8px 10px;font-size:11px}
  .mkt .it{width:120px}
  .stat{padding:9px 10px}
  .agent-row{font-size:11.5px}
  .agent-ic{width:24px;height:24px;font-size:10px}
  .lead .big{font-size:20px}
  .credit .bar{margin-top:5px !important}
  .form-row{grid-template-columns:1fr;gap:5px;padding:9px 0}
  .plan-big .row{justify-content:flex-start}
}

/* ==========================================================================
   移动端溢出根治：min-width 链
   ========================================================================== */
html,body{max-width:100%;overflow-x:clip}
.stack,.card,.grid>*,.tbl-scroll,.thread,.msg,.bubble,.composer,.tools,.confirm,
.lead,.credit,.ws,.plan-big,.set,.form-row{min-width:0}
.tbl-scroll{max-width:100%}
.card{overflow-x:clip}
@media (max-width:760px){
  .kv{grid-template-columns:1fr}
  .msg .bubble{width:auto}
  .confirm .row,.composer .row{flex-wrap:wrap}
  .credit{grid-template-columns:1fr !important}
  .credit > div{width:100%}
  .lead,.credit,.ws,.plan-big,.set{width:auto}
}

/* ==========================================================================
   PC / 折叠屏 / 触控 细节优化（v1.1）
   ========================================================================== */
::selection{background:rgba(56,225,255,.26);color:#f0feff}
:focus-visible{outline:2px solid rgba(56,225,255,.55);outline-offset:2px}
a,.btn,.tabs button,.seg button,.toggle,.nav a{transition:color .15s,border-color .15s,background .15s,box-shadow .15s}
@media (hover:hover){
  .card:hover{border-color:rgba(56,189,248,.26)}
  .stat:hover{border-color:rgba(56,189,248,.24)}
  .plan:hover{border-color:rgba(56,189,248,.4)}
  .pcard:hover{border-color:rgba(56,225,255,.5);box-shadow:0 12px 34px rgba(0,0,0,.35)}
}
/* 超宽屏：内容居中，避免 2K/4K 拉太散 */
@media (min-width:1800px){
  .content{max-width:1740px;margin:0 auto;width:100%}
}
/* 触屏：按钮命中面积 */
@media (pointer:coarse){
  .btn{padding:9px 14px}
  .btn.sm{padding:7px 10px}
  .tabs button{padding:10px 14px}
  .seg button{padding:8px 14px}
  .nav a{padding:11px 16px}
  table.tbl td,table.tbl th{padding-top:9px;padding-bottom:9px}
}
/* 安全区 */
@supports (padding: env(safe-area-inset-bottom)){
  .ui-toasts{bottom:calc(18px + env(safe-area-inset-bottom))}
  @media (max-width:760px){
    .content{padding-bottom:calc(28px + env(safe-area-inset-bottom))}
    .ui-toasts{left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom))}
  }
}
/* ---------- 折叠屏：双屏/悬停姿态（渐进增强，不支持则忽略） ---------- */
@supports (viewport-segment-width: 0 0){
  @media (horizontal-viewport-segments: 2){
    .content{padding-left:8px;padding-right:8px}
    .grid.g2,.grid.g3,.grid.g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (vertical-viewport-segments: 2){
    .topbar{position:sticky;top:0}
    .content{overflow-y:auto}
  }
}
@media (spanning: single-fold-vertical){
  .app{grid-template-columns:var(--sidebar) 1fr}
  .content{padding-left:10px;padding-right:10px}
  .grid.g2,.grid.g3,.grid.g32,.grid.g23,.grid.g31{grid-template-columns:1fr 1fr}
  .grid.g4{grid-template-columns:repeat(2,1fr)}
}
@media (spanning: single-fold-horizontal){
  .topbar{position:relative}
  .content{padding-top:8px}
  .lead,.credit,.plan-big{grid-template-columns:1fr}
}
/* 横屏手机：紧凑顶栏 + 底部大按钮更好点 */
@media (orientation:landscape) and (max-height:520px){
  .topbar{padding:8px 12px}
  .topbar h1{font-size:12px}
  .content{padding:10px 12px 22px}
  .topbar .pill{display:none}
  .card{padding:11px 12px}
  .grid{gap:9px}
}

/* ==========================================================================
   商用 App 形态：底部 Tab 导航（≤900px，Fold 展开/手机/折叠收起通用）
   ========================================================================== */
.tabbar{display:none}
@media (max-width:900px){
  .tabbar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:100;gap:2px;
    background:rgba(5,12,21,.97);border-top:1px solid rgba(56,189,248,.16);
    padding:6px 6px calc(6px + env(safe-area-inset-bottom));
    backdrop-filter:blur(12px);box-shadow:0 -10px 30px rgba(0,0,0,.45)}
  .tabbar button{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;border:0;background:transparent;
    color:#6f93a8;font:600 9.5px var(--mono);letter-spacing:.04em;padding:5px 0;cursor:pointer;border-radius:4px}
  .tabbar button .ti{font-size:15px;line-height:1}
  .tabbar button.on{color:#38e1ff;background:rgba(56,225,255,.07)}
  .tabbar button.on .ti{text-shadow:0 0 10px rgba(56,225,255,.75)}
  .tabbar button:active{background:rgba(56,225,255,.12)}
  .content{padding-bottom:calc(78px + env(safe-area-inset-bottom)) !important}
  .tb-email{display:none}
  .tb-txt{display:none}
  .tb-status{padding:5px 7px}
  .topbar{gap:8px}
  .topbar h1{font-size:13px}
  .menu-btn{display:none !important}
}
@media (min-width:901px) and (max-width:980px){
  .menu-btn{display:grid !important}
}
/* 商用页面：隐藏内部/开发相关元素 */
.dev-only{display:none !important}
@media (max-width:760px){
  .mobile-hide{display:none !important}
  .topbar .crumb{display:none}
  .sidebar .plan-chip{display:none}
}
/* 移动端快捷操作 */
.mobile-quick{display:none}
@media (max-width:900px){
  .mobile-quick{display:block;margin-bottom:12px}
  .mobile-quick .mq-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}
  .mobile-quick .mq{display:flex;flex-direction:column;align-items:center;gap:5px;padding:11px 4px;
    border:1px solid rgba(56,189,248,.18);background:rgba(8,22,36,.6);color:#b9d6e4;
    font:600 9.5px var(--mono);letter-spacing:.04em;cursor:pointer}
  .mobile-quick .mq .i{font-size:16px;color:#38e1ff}
  .mobile-quick .mq:active{background:rgba(56,225,255,.08)}
}

/* 移动端顶栏精简 */
@media (max-width:760px){
  .tb-credits{display:none}
  .topbar .user .avatar{width:24px;height:24px;font-size:9px}
  .topbar .icon-btn{width:26px;height:26px}
}

/* ==========================================================================
   折叠屏商用细节：折叠展开（600–900）两列信息密度 + 顶栏精简
   ========================================================================== */
@media (max-width:900px){
  .ui-pal-btn{display:none !important}
  .topbar .icon-btn[title="通知"]{display:none}
  .topbar h1{font-weight:600;letter-spacing:.02em}
  .stat{padding:10px 12px}
  .stat .v{font-size:19px}
  .stat .d{font-size:10px}
  .card{padding:12px 13px}
  .card-h h3{font-size:10.5px}
  .mkt .it{min-width:118px;padding:8px 11px}
}
@media (min-width:600px) and (max-width:900px){
  .grid.g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mobile-quick .mq-grid{grid-template-columns:repeat(4,1fr)}
  .feats,.steps,.price-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:599px){
  .grid.g4{grid-template-columns:1fr}
}
@media (max-width:900px){ .mobile-quick .mq-grid{grid-template-columns:repeat(5,1fr)} }
/* 主题切换图标（太阳/月亮） */
.theme-btn svg,.btn[data-theme-btn] svg{display:block;pointer-events:none}
.theme-btn.on{color:#ffd27a;border-color:rgba(255,190,60,.45);background:rgba(255,190,60,.10)}

/* ---------- BITBOSS 图标系统 ---------- */
.bb-ic{display:inline-block;vertical-align:-.14em;flex:none}
.nav a i .bb-ic{width:15px;height:15px}
.nav a i{display:inline-flex;align-items:center;justify-content:center;width:16px}
.tabbar .ti .bb-ic{width:21px;height:21px}
.tabbar button.on .ti .bb-ic{filter:drop-shadow(0 0 6px rgba(56,225,255,.45))}
.mobile-quick .mq .i .bb-ic{width:20px;height:20px}
.mobile-quick .mq .i{display:inline-flex;align-items:center;justify-content:center}
.feat .ic .bb-ic{width:19px;height:19px}
.icon-btn .bb-ic{width:16px;height:16px}
.nt .ic .bb-ic{width:15px;height:15px}

/* ==========================================================================
   精修：顶栏控件统一 30×30（图标按钮 / 实时状态 / 命令面板 / 头像）
   ========================================================================== */
.topbar .icon-btn,
.topbar .ui-pal-btn{width:30px;min-width:30px;height:30px;padding:0;display:grid;place-items:center}
.topbar .pill{height:30px;display:inline-flex;align-items:center;padding:0 10px}
.topbar .tb-wallet.on{color:var(--amber);border-color:rgba(255,182,46,.45);background:rgba(255,182,46,.10)}
.topbar .tb-status{height:30px;display:inline-flex;align-items:center;gap:6px;padding:0 9px;border-radius:2px}
.topbar .user{gap:0;margin:0 0 0 1px}
.topbar .user .avatar{width:30px;height:30px;border-radius:50%;font-size:11px}
.topbar .ui-pal-btn .bb-ic{width:15px;height:15px}
@media(max-width:900px){
  .topbar .tb-status{width:30px;min-width:30px;justify-content:center;padding:0}
  .topbar .tb-status .tb-txt{display:none}
}
@media(max-width:520px){
  .topbar{padding:9px 11px;gap:7px}
  .topbar .icon-btn,.topbar .ui-pal-btn,.topbar .tb-status{width:28px;min-width:28px;height:28px}
  .topbar .user .avatar{width:28px;height:28px}
}
/* 侧栏 / Tab 激活态图标着色 */
.nav a.on i .bb-ic{color:var(--cyan)}
.tabbar button.on .ti .bb-ic{color:var(--cyan)}
.mobile-quick .mq .i .bb-ic{color:var(--cyan)}

/* 侧边栏布局精修：图标列对齐、分组节奏、底部区域收紧 */
.sidebar{padding-top:14px}
.brand{padding:0 16px 16px}
.nav a{padding:7.5px 16px;gap:10px;letter-spacing:.01em}
.nav a i{width:18px;height:16px;display:inline-flex;align-items:center;justify-content:center}
.nav a i .bb-ic{width:15px;height:15px}
.nav a.on{border-left-width:2px}
.nav-group{padding:11px 16px 4px}
.side-foot{padding:12px 16px 0;margin-top:auto}
.plan-chip{padding:7px 10px}

/* ==========================================================================
   顶栏精修：头像可上传 + 状态/额度/通知/语言/钱包 功能弹层
   ========================================================================== */
.topbar .user .avatar{width:30px;height:30px;padding:0;border:1px solid var(--line3);border-radius:50%;
  overflow:hidden;display:grid;place-items:center;cursor:pointer;background:linear-gradient(135deg,#0e4a63,#0a2333);
  color:#bfefff;font:600 11px var(--mono);position:relative}
.topbar .user .avatar:hover{border-color:rgba(56,225,255,.55);box-shadow:0 0 0 3px rgba(56,225,255,.08)}
.topbar .avatar .avatar-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:none}
.topbar .avatar.has-img .avatar-txt{display:none}
.topbar .avatar.has-img .avatar-img{display:block}
.side-foot .user .avatar{position:relative;overflow:hidden;cursor:pointer}
.side-foot .user .avatar .avatar-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:none}
.side-foot .user .avatar.has-img .avatar-txt{display:none}
.side-foot .user .avatar.has-img .avatar-img{display:block}
.topbar .tb-status{cursor:pointer;font-family:inherit}
.topbar .tb-status .dot{transition:background .2s,box-shadow .2s}
.topbar .tb-status.part{border-color:rgba(255,182,46,.45);background:rgba(255,182,46,.08);color:#ffd88a}
.topbar .tb-status.part .dot{background:var(--amber);box-shadow:0 0 8px var(--amber)}
.topbar .tb-status.off{border-color:rgba(255,45,94,.45);background:rgba(255,45,94,.08);color:#ffc3d0}
.topbar .tb-status.off .dot{background:var(--red);box-shadow:0 0 8px var(--red)}
.topbar .tb-credits{cursor:pointer;border:1px solid rgba(56,225,255,.32);background:rgba(56,225,255,.08);
  color:#bfefff;font:600 9.5px var(--mono);letter-spacing:.08em;border-radius:0}
.topbar .tb-credits:hover{border-color:rgba(56,225,255,.6);color:#eafcff}
.topbar .bell-dot{position:absolute;top:6px;right:6px;width:5px;height:5px;border-radius:50%;background:var(--red);
  box-shadow:0 0 6px var(--red);display:none}
.topbar .tb-bell{position:relative}
.topbar .tb-bell.unread .bell-dot{display:block}
.topbar .tb-pop{position:absolute;right:14px;top:calc(100% + 8px);min-width:290px;max-width:min(360px,92vw);
  border:1px solid rgba(56,189,248,.3);background:linear-gradient(180deg,rgba(8,26,42,.99),rgba(4,12,22,.99));
  box-shadow:0 24px 64px rgba(0,0,0,.6);z-index:60;display:none;padding:6px}
.topbar .tb-pop.show{display:block;animation:tb-pop-in .16s ease both}
@keyframes tb-pop-in{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.tb-pop-h{display:flex;align-items:center;gap:8px;padding:8px 10px;border-bottom:1px solid var(--line)}
.tb-pop-h b{font:600 12px var(--sans);color:var(--txt)}
.tb-pop-h .meta{margin-left:auto;font:500 8.5px var(--mono);color:var(--faint);letter-spacing:.1em}
.tb-menu button,.tb-menu a{display:flex;align-items:center;gap:10px;width:100%;padding:8px 10px;border:0;background:transparent;
  color:var(--dim);font:500 11.5px var(--sans);cursor:pointer;text-align:left;text-decoration:none}
.tb-menu button:hover,.tb-menu a:hover{background:rgba(56,225,255,.08);color:var(--txt)}
.tb-menu .bb-ic{width:15px;height:15px;color:var(--cyan)}
.tb-notif-i{display:flex;gap:10px;padding:9px 10px;text-decoration:none;border-bottom:1px solid rgba(56,189,248,.07)}
.tb-notif-i:hover{background:rgba(56,225,255,.06)}
.tb-notif-i time{font:500 8.5px var(--mono);color:var(--faint);padding-top:2px;flex:none;width:34px}
.tb-notif-i b{display:block;font:600 10.5px var(--sans);color:var(--txt)}
.tb-notif-i span{display:block;font:500 10px var(--sans);color:var(--dim);line-height:1.6;margin-top:2px}
.tb-pop-f{display:block;padding:9px 10px;text-align:center;color:var(--cyan);font:600 10.5px var(--mono);
  letter-spacing:.06em;text-decoration:none}
.tb-pop-f:hover{background:rgba(56,225,255,.06)}
.tb-kv{display:flex;align-items:center;gap:10px;padding:5px 0;font-size:12px;color:var(--dim)}
.tb-kv b{margin-left:auto;color:var(--txt);font-family:var(--mono);font-size:11.5px}
.tb-bar{height:6px;border:1px solid var(--line2);background:rgba(56,225,255,.06);margin-top:6px}
.tb-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--cyan),var(--green))}
.tb-health .up{color:var(--green)} .tb-health .down{color:var(--red)}
@media(max-width:900px){.topbar .tb-lang{display:none}}
@media(max-width:520px){.topbar .tb-bell{display:none}}

/* ---------- 英文模式：长词/表格换行，避免溢出卡片 ---------- */
html[data-lang="en"] .tbl{width:100%;table-layout:auto}
html[data-lang="en"] .tbl th,
html[data-lang="en"] .tbl td{white-space:normal;overflow-wrap:anywhere;word-break:break-word;line-height:1.45}
html[data-lang="en"] .tbl .mono,
html[data-lang="en"] .tbl .num,
html[data-lang="en"] .tbl .r{white-space:normal}
html[data-lang="en"] .card-h h3{overflow-wrap:anywhere}
html[data-lang="en"] .nav a{letter-spacing:0}
html[data-lang="en"] .stat .k,
html[data-lang="en"] .kv .k{letter-spacing:.02em}
html[data-lang="en"] .btn{white-space:nowrap}
html[data-lang="en"] .tag,
html[data-lang="en"] .pill{white-space:nowrap}
html[data-lang="en"] .topbar h1{overflow-wrap:anywhere}

/* 头像与顶栏图标严格对齐（按钮元素，覆盖默认样式） */
.topbar .user{display:flex;align-items:center;height:30px;margin:0 0 0 1px}
.topbar .user .avatar.tb-avatar{width:30px;height:30px;min-width:30px;min-height:30px;max-width:30px;max-height:30px;
  margin:0;padding:0;border:1px solid var(--line3);border-radius:50%;box-sizing:border-box;
  display:grid;place-items:center;line-height:1;flex:none;appearance:none;-webkit-appearance:none;overflow:hidden}
.topbar .user .avatar.tb-avatar .avatar-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
@media(max-width:520px){
  .topbar .user{height:28px;margin:0 0 0 1px}
  .topbar .user .avatar.tb-avatar{width:28px;height:28px;min-width:28px;min-height:28px;max-width:28px;max-height:28px}
}

/* ============================================================
   Multilingual / RTL support
   ============================================================ */
.lang-pop{position:fixed;z-index:120;min-width:190px;display:none;padding:5px;border:1px solid var(--line3);
  background:linear-gradient(180deg,rgba(8,22,36,.98),rgba(4,12,20,.98));box-shadow:0 18px 50px rgba(0,0,0,.55);
  backdrop-filter:blur(8px)}
.lang-pop.show{display:block}
.lang-pop-h{padding:5px 8px 7px;font:600 8px var(--mono);letter-spacing:.14em;color:var(--faint);border-bottom:1px solid var(--line)}
.lang-pop button{display:flex;align-items:center;gap:8px;width:100%;padding:7px 8px;border:0;background:transparent;
  color:var(--dim);font:500 11px var(--sans);cursor:pointer;text-align:left}
.lang-pop button:hover{background:rgba(56,225,255,.06);color:var(--txt)}
.lang-pop button.on{color:var(--cyan)}
.lang-pop button b{margin-left:auto;font:700 8px var(--mono);color:var(--faint)}
.lang-pop button.on b{color:var(--cyan)}
html[lang="ja-JP"] body,html[lang="ja-JP"] button,html[lang="ja-JP"] input,html[lang="ja-JP"] select{font-family:"Hiragino Sans","Yu Gothic","Noto Sans JP",-apple-system,"PingFang SC",sans-serif}
html[lang="ko-KR"] body,html[lang="ko-KR"] button,html[lang="ko-KR"] input,html[lang="ko-KR"] select{font-family:"Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic",-apple-system,"PingFang SC",sans-serif}
html[lang="ar-AE"] body,html[lang="ar-AE"] button,html[lang="ar-AE"] input,html[lang="ar-AE"] select{font-family:"Geeza Pro","Noto Naskh Arabic","Segoe UI",-apple-system,"PingFang SC",sans-serif}
html[dir="rtl"] body{direction:rtl}
html[dir="rtl"] .sidebar{border-right:0;border-left:1px solid var(--line)}
html[dir="rtl"] .push{margin-left:0;margin-right:auto}
html[dir="rtl"] .lang-pop button{text-align:right}
html[dir="rtl"] .topbar .tb-status .dot{margin-right:0;margin-left:6px}
html[dir="rtl"] .rs-row .s{text-align:left}