/* 投资账本 · 深色金色主题（参照 BTC 现货账本视觉语言） */
:root{
  --bg:#0a0d12; --panel:#11161e; --panel2:#171e28; --line:#27303d;
  --txt:#f1f3f7; --muted:#929dad;
  --gold:#f3aa37; --gold-lt:#f7c453; --gold-dk:#e8930c;
  --green:#4cdda8; --red:#fa7584; --blue:#9bbdff;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{
  margin:0; color:var(--txt);
  background:radial-gradient(ellipse 70% 40% at 90% -10%,#252013 0,transparent 70%),var(--bg);
  font:14px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
a{color:var(--gold);text-decoration:none}
a:hover{text-decoration:underline}

/* ---- 顶栏 ---- */
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;
  max-width:1200px;margin:0 auto;padding:28px 24px 0}
.brand{display:flex;align-items:center;gap:14px}
.coin{width:48px;height:48px;flex:none}
.eyebrow{color:var(--gold);font-size:11px;font-weight:750;letter-spacing:.17em;text-transform:uppercase}
.brand h1{margin:2px 0 0;font-size:23px;letter-spacing:-.03em;font-weight:750}
.top-actions{display:flex;gap:9px;align-items:center;flex-wrap:wrap}
.top-actions .btn.active{border-color:var(--gold);color:var(--gold)}

/* ---- 按钮 ---- */
.btn{display:inline-block;border:1px solid var(--line);background:#151b24;color:var(--txt);
  border-radius:11px;padding:9px 14px;font-weight:600;cursor:pointer;text-decoration:none}
.btn:hover,.pill:hover{border-color:#756341;text-decoration:none}
.btn.primary,.btn-warm{background:var(--gold);color:#1c170f;border-color:var(--gold);font-weight:750}
.btn-warm:hover,.btn.primary:hover{filter:brightness(1.06)}
.btn.ghost{background:transparent}
.btn.small{padding:6px 12px;font-size:12px}
.btn.danger{color:var(--red)}
button{border:1px solid var(--line);background:#151b24;color:var(--txt);
  border-radius:11px;padding:9px 16px;font-weight:600;cursor:pointer}
button:hover{border-color:#756341}
button.primary{background:var(--gold);color:#1c170f;border-color:var(--gold);font-weight:750}
button.primary:hover{filter:brightness(1.06)}
button.ghost{background:transparent}
button.small{padding:6px 12px;font-size:12px}
button.danger{background:#3a2222;color:var(--red);border-color:#5a2f33}
.link-danger{background:none;border:none;color:var(--red);cursor:pointer;font-size:13px;padding:6px 8px}
.link-danger:hover{text-decoration:underline}

/* ---- 布局 ---- */
.container{max-width:1200px;margin:0 auto;padding:28px 24px 80px}
.foot{margin-top:23px;color:#748092;font-size:12px;line-height:1.7;text-align:center;padding-bottom:30px}
.foot a{color:#aab8cc}

/* ---- 卡片 ---- */
.card{border:1px solid var(--line);background:linear-gradient(145deg,#151b24,#10151d);
  border-radius:19px;padding:23px}
.label{color:var(--muted);font-size:13px}
.caption{color:var(--muted);font-size:12px}
.mini{color:var(--muted);font-size:11px}
.hint{color:var(--muted);font-size:12px}
.inline{display:flex;gap:9px;align-items:center;flex-wrap:wrap}
.pos{color:var(--green)!important}
.neg{color:var(--red)!important}
.mut{color:var(--muted)}

/* ---- Hero：大价格卡 + 2x2 指标 ---- */
.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:16px;margin-top:6px}
.price-card{background:linear-gradient(120deg,#2b2418,#171b22 65%);border-color:#51412b}
.huge{font-size:clamp(32px,4vw,53px);font-weight:770;line-height:1.15;letter-spacing:-.05em;
  font-variant-numeric:tabular-nums;margin:14px 0 8px}
.price-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:20px}
.metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.metric strong{display:block;font-size:clamp(21px,2.6vw,30px);letter-spacing:-.04em;
  margin-top:12px;font-variant-numeric:tabular-nums;font-weight:750}
.metric small{color:var(--muted);display:block;margin-top:4px}

/* ---- 分节标题 ---- */
.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:31px 0 13px}
.section-title h2{font-size:18px;margin:0;letter-spacing:-.01em}
.section-title span{color:var(--muted);font-size:12px}

/* ---- 统计 4 格 ---- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}
.stat b{display:block;font-size:20px;margin-top:7px;font-variant-numeric:tabular-nums;font-weight:750}

/* ---- 图表卡 ---- */
.chart-card{margin-top:15px}
.chart-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;flex-wrap:wrap}
.chart-top h2{margin:0;font-size:18px}
.chart-total{font-size:27px;font-weight:750;letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.chart-frame{overflow:hidden;margin-top:12px}
.chart-frame svg{width:100%;height:auto;display:block;max-height:320px}
.chart-legend{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:12px;margin-top:6px}
.legend-line{display:inline-block;width:21px;height:3px;vertical-align:middle;margin-right:6px;border-radius:2px;background:var(--gold)}
.legend-line.alt{background:var(--blue)}
.chart-note{color:var(--muted);font-size:12px;margin:10px 0 0}

/* ---- 表格 ---- */
.table-scroll{overflow:auto;border:1px solid var(--line);border-radius:12px;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;white-space:nowrap;text-align:right;
  font-variant-numeric:tabular-nums;font-size:14px}
th{color:var(--muted);font-weight:500;font-size:11px;background:#171e28}
th,td{padding:13px 12px;border-bottom:1px solid #252d38}
tr:last-child td{border-bottom:0}
th:first-child,td:first-child{text-align:left}
.type{font-size:11px;border-radius:6px;padding:4px 7px;background:#244337;color:var(--green);white-space:nowrap}
.type.sell{background:#482d31;color:#ff9ca5}
.tag{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;white-space:nowrap}
.tag.stock{background:#1d3a5f;color:#8fc3ff}
.tag.crypto{background:#3f2f5f;color:#cfa8ff}
.tag.buy{background:#244337;color:var(--green)}
.tag.sell{background:#482d31;color:#ff9ca5}
.stale{font-size:11px;color:#e0a63c}

/* ---- 表单 ---- */
.layout{display:grid;grid-template-columns:minmax(330px,.82fr) minmax(0,1.5fr);gap:17px;align-items:start}
.form-card h3,.history h3{font-size:16px;margin:0 0 18px}
.seg{display:inline-flex;gap:4px;background:#0a0e14;border:1px solid var(--line);padding:4px;border-radius:11px}
.seg.grid2{display:grid;grid-template-columns:1fr 1fr;width:100%;margin-bottom:19px}
.seg-btn{border:0;background:transparent;color:var(--muted);padding:9px 16px;border-radius:8px;
  font-weight:600;cursor:pointer;font-size:14px;text-decoration:none;display:inline-block;text-align:center}
.seg-btn:hover{color:var(--txt);text-decoration:none}
.seg-btn.active{background:#27303b;color:#fff}
.seg-btn.active-buy{background:var(--gold);color:#1c170f;font-weight:700}
.seg-btn.active-sell{background:#30301e;color:#ffd38b;font-weight:700}
.seg.sm .seg-btn{padding:6px 12px;font-size:12px}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.field{display:block;min-width:0}
.field.wide{grid-column:span 2}
.field span{display:block;color:#bdc4cf;font-size:12px;margin-bottom:6px}
.field label{font-size:12px;color:var(--muted)}
.field input,.field select{width:100%;border-radius:9px;border:1px solid #37404d;background:#0b1017;
  color:var(--txt);padding:10px 11px;outline:none;min-height:42px}
.field input:focus,.field select:focus{border-color:var(--gold)}
.field input::placeholder{color:#586271}
input,select,textarea{background:#0b1017;border:1px solid #37404d;color:var(--txt);
  border-radius:9px;padding:10px 11px;min-width:0}
input:focus,select:focus{outline:none;border-color:var(--gold)}
input[type="datetime-local"],input[type="date"],input[type="time"]{color-scheme:dark}
.form-actions{display:flex;gap:9px;margin-top:17px}
.form-actions .primary{flex:1}

/* ---- 试算面板 ---- */
.calc-preview{background:#0b1017;border:1px solid var(--line);border-radius:9px;
  padding:12px 14px;margin-top:14px}
.cp-row{display:flex;justify-content:space-between;align-items:center;padding:3px 0;font-size:13px}
.cp-row span{color:var(--muted)}
.cp-row b{font-weight:600;font-variant-numeric:tabular-nums}
.cp-row.total{border-top:1px solid var(--line);margin-top:6px;padding-top:9px}
.cp-row.total b{color:var(--gold);font-size:15px}

/* ---- 历史 ---- */
.history-head{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.history-head h3{margin:0}
.tabs{display:flex;gap:5px}
.tabs button{border:0;background:transparent;color:var(--muted);padding:6px 10px;border-radius:8px}
.tabs button.active{background:#27303b;color:#fff}

/* ---- 提示 / 空态 ---- */
.flash-wrap{margin-bottom:12px}
.flash{padding:10px 14px;border-radius:11px;margin-bottom:8px;font-size:14px;border:1px solid var(--line)}
.flash.ok{background:#244337;color:var(--green)}
.flash.error{background:#482d31;color:#ffb3b3}
.empty{text-align:center;color:var(--muted);padding:52px 15px}
.notice{min-height:19px;color:var(--red);font-size:12px;margin-top:10px}

/* ---- 登录页 ---- */
.login-wrap{min-height:72vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px 12px}
.login-card{width:100%;max-width:400px;background:linear-gradient(145deg,#151b24,#10151d);
  border:1px solid var(--line);border-radius:19px;padding:44px 40px 36px;text-align:center;
  position:relative;overflow:hidden;box-shadow:0 24px 70px rgba(0,0,0,.5)}
.login-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--gold-lt),var(--gold-dk),var(--gold-lt))}
.logo-lg{width:72px!important;height:72px!important;margin:0 auto 18px;
  filter:drop-shadow(0 6px 18px rgba(243,170,55,.45))}
.login-title{margin:10px 0 8px;font-size:30px;letter-spacing:10px;text-indent:10px;font-weight:700}
.login-tag{color:var(--muted);font-size:13px;margin:0 0 26px;letter-spacing:1px}
.login-card form{display:flex;flex-direction:column;gap:14px}
.login-card input{width:100%;text-align:center;font-size:15px;padding:13px;letter-spacing:3px}
.login-card button{width:100%}
.login-foot{margin-top:22px;color:var(--muted);font-size:12px;letter-spacing:1px}
.err{color:var(--red);font-size:13px;margin-top:8px}

.status-dot{width:7px;height:7px;display:inline-block;border-radius:50%;background:var(--muted);margin-right:5px}
.status-dot.ok{background:var(--green)}
details.manual summary{list-style:none;cursor:pointer;display:inline-block}
details.manual summary::-webkit-details-marker{display:none}
.coin-txt{display:grid;place-items:center;width:48px;height:48px;border-radius:16px;flex:none;
  background:var(--gold);color:#19150c;font-size:28px;font-weight:800;box-shadow:0 6px 26px #f3aa3733}
.coin-txt.stock{background:#1d3a5f;color:#8fc3ff;box-shadow:none;font-size:24px}

/* ---- 详情页头 ---- */
.asset-head{display:flex;justify-content:space-between;align-items:center;margin:6px 0 16px;flex-wrap:wrap;gap:12px}
.asset-title{display:flex;align-items:center;gap:14px}
.asset-title h2{margin:2px 0 0;font-size:22px;letter-spacing:-.02em}

/* ---- 响应式 ---- */
@media(max-width:900px){
  .hero,.layout{grid-template-columns:1fr}
  .metrics{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .container{padding:20px 14px 55px}
  .top{padding:20px 14px 0;flex-direction:column;align-items:flex-start}
  .card{padding:17px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .stat b{font-size:18px}
  .huge{font-size:38px}
  .chart-total{font-size:23px}
  th,td{padding:8px 6px;font-size:12px}
  .section-title{margin:24px 0 10px}
  .fields{grid-template-columns:1fr}
  .field.wide{grid-column:span 1}
}