:root{
  --bg:#0d1021;
  --bg2:#12162b;
  --card:#161a30;
  --card2:#1b2040;
  --border:#232850;
  --text:#e8eaf6;
  --text2:#9aa0c0;
  --text3:#6b7199;
  --up:#16c784;
  --down:#ea3943;
  --accent:#2d6cff;
  --accent2:#1e5fff;
  --gold:#f0b90b;
  --radius:12px;
  --tabbar-h:56px;
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  font-size:14px;
  overflow-x:hidden;
}
#app{max-width:520px;margin:0 auto;min-height:100vh;position:relative;background:var(--bg)}
.page{padding-bottom:calc(var(--tabbar-h) + 20px)}
[hidden]{display:none !important}
.icon{width:20px;height:20px;vertical-align:middle}
::-webkit-scrollbar{display:none}
input,button{font-family:inherit;outline:none;border:none}

/* ========== 顶栏 ========== */
.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(13,16,33,.96);
  backdrop-filter:blur(10px);
  padding:10px 14px 8px;
  border-bottom:1px solid rgba(35,40,80,.4);
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.logo{font-size:18px;font-weight:800;letter-spacing:.3px}
.logo-accent{color:var(--gold)}
.logo.small{font-size:17px}
.topbar-badge{
  font-size:10px;color:var(--gold);
  border:1px solid rgba(240,185,11,.5);
  border-radius:4px;padding:1px 6px;
  letter-spacing:1px;
}
.searchbar{
  display:flex;align-items:center;gap:8px;
  background:var(--card2);border-radius:8px;
  padding:8px 10px;color:var(--text3);
}
.searchbar input{
  flex:1;background:none;border:none;color:var(--text);font-size:13px;
}
.searchbar input::placeholder{color:var(--text3)}

/* ========== 行情 tab ========== */
.market-tabs{
  display:flex;gap:4px;padding:10px 14px 6px;
  border-bottom:1px solid rgba(35,40,80,.3);
  overflow-x:auto;position:sticky;top:96px;z-index:40;
  background:var(--bg);
}
.mtab{
  flex-shrink:0;padding:5px 14px;border-radius:16px;
  color:var(--text2);font-size:13px;cursor:pointer;
}
.mtab.active{background:var(--accent);color:#fff;font-weight:600}

.coin-table-head{
  display:flex;padding:10px 14px 6px;font-size:12px;color:var(--text3);
}
.cth-name{flex:1.3}
.cth-price{flex:1;text-align:right}
.cth-chg{width:88px;text-align:right}

/* ========== 币种列表 ========== */
.coin-list{padding:0 6px}
.coin-item{
  display:flex;align-items:center;padding:11px 8px;
  border-radius:10px;cursor:pointer;
}
.coin-item:active{background:var(--card2)}
.ci-left{flex:1.3;display:flex;align-items:center;gap:10px;min-width:0}
.ci-logo{
  width:34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:13px;color:#fff;flex-shrink:0;
}
.ci-names{min-width:0}
.ci-sym{font-size:15px;font-weight:700}
.ci-full{font-size:11px;color:var(--text3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ci-mid{flex:1;text-align:right}
.ci-price{font-size:15px;font-weight:700;font-variant-numeric:tabular-nums}
.ci-right{width:88px;text-align:right}
.ci-chg{
  display:inline-block;min-width:70px;padding:4px 8px;border-radius:5px;
  font-size:13px;font-weight:600;text-align:center;color:#fff;
}
.up{color:var(--up)}
.down{color:var(--down)}
.ci-chg.up{background:rgba(22,199,132,.15);color:var(--up)}
.ci-chg.down{background:rgba(234,57,67,.15);color:var(--down)}
.loading{text-align:center;color:var(--text3);padding:30px 0}

/* ========== 详情页 ========== */
.back-btn{display:flex;align-items:center;cursor:pointer;padding:2px}
.back-btn .icon{width:24px;height:24px;color:var(--text2)}
.detail-title{font-size:16px;font-weight:700;display:flex;align-items:baseline;gap:6px}
.d-sym{font-size:17px}
.d-name{font-size:13px;color:var(--text3);font-weight:400}
.fav-btn{font-size:20px;color:var(--text3);cursor:pointer;padding:2px 6px}
.fav-btn.on{color:var(--gold)}

.detail-price-block{padding:14px 16px 10px}
.dp-price{font-size:32px;font-weight:800;font-variant-numeric:tabular-nums}
.dp-chg{display:flex;align-items:center;gap:10px;margin-top:6px}
.chg-pill{padding:3px 10px;border-radius:5px;font-size:13px;font-weight:600;color:#fff}
.chg-pill.up{background:rgba(22,199,132,.18);color:var(--up)}
.chg-pill.down{background:rgba(234,57,67,.18);color:var(--down)}
.chg-amount{font-size:12px;color:var(--text2)}

.detail-stats{
  display:flex;margin:6px 14px 0;background:var(--card);
  border-radius:var(--radius);padding:10px 6px;
}
.dstat{flex:1;text-align:center}
.ds-label{display:block;font-size:10px;color:var(--text3);margin-bottom:4px}
.ds-val{font-size:12px;font-weight:600;font-variant-numeric:tabular-nums}

/* K线 */
.kline-tabs{
  display:flex;gap:2px;padding:10px 14px 4px;overflow-x:auto;
}
.ktab{
  flex-shrink:0;padding:4px 12px;font-size:12px;color:var(--text2);
  border-radius:14px;cursor:pointer;
}
.ktab.active{background:var(--accent);color:#fff}
.kline-wrap{
  position:relative;margin:6px 10px;background:var(--card);
  border-radius:var(--radius);overflow:hidden;
}
#klineCanvas{display:block;width:100%;height:340px}
.kline-tip{
  position:absolute;top:8px;left:8px;z-index:5;
  background:rgba(13,16,33,.92);border:1px solid var(--border);
  border-radius:8px;padding:8px 10px;font-size:11px;line-height:1.7;
  color:var(--text2);pointer-events:none;
}
.kline-tip b{color:var(--text);font-size:12px}

/* 盘口 / 成交 */
.book-title{
  display:flex;gap:16px;padding:10px 16px 6px;
  border-bottom:1px solid rgba(35,40,80,.3);
}
.bt-tab{font-size:14px;color:var(--text2);padding-bottom:6px;cursor:pointer;position:relative}
.bt-tab.active{color:var(--text);font-weight:700}
.bt-tab.active::after{
  content:"";position:absolute;bottom:0;left:0;right:0;height:2px;
  background:var(--accent);border-radius:2px;
}
.book-panel{padding:6px 14px}
.book-head{
  display:flex;font-size:11px;color:var(--text3);
  padding:4px 0;border-bottom:1px solid rgba(35,40,80,.25);
}
.book-head span{flex:1;text-align:right}
.book-head span:first-child{text-align:left}
.book-row{
  display:flex;align-items:center;position:relative;
  padding:3.5px 0;font-size:12px;
}
.book-row>span{flex:1;text-align:right;position:relative;z-index:1;font-variant-numeric:tabular-nums}
.book-row>span:first-child{text-align:left;font-weight:600}
.book-row .depth-bg{
  position:absolute;top:0;bottom:0;right:0;border-radius:2px;z-index:0;
}
.ask-row .depth-bg{background:rgba(234,57,67,.12)}
.bid-row .depth-bg{background:rgba(22,199,132,.12)}
.ask-row>span:first-child{color:var(--down)}
.bid-row>span:first-child{color:var(--up)}
.book-mid{
  text-align:center;padding:8px 0;font-size:15px;font-weight:800;
  border-top:1px dashed rgba(35,40,80,.4);border-bottom:1px dashed rgba(35,40,80,.4);
  font-variant-numeric:tabular-nums;
}
.book-trades .book-row>span:first-child{color:var(--text2);font-weight:400}

/* 详情页操作按钮 */
.detail-actions{
  display:flex;gap:12px;padding:14px 14px 10px;
  position:sticky;bottom:calc(var(--tabbar-h) + 8px);z-index:30;
}
.da-btn{
  flex:1;padding:13px 0;border-radius:10px;
  font-size:15px;font-weight:700;color:#fff;cursor:pointer;
}
.da-btn.sell{background:linear-gradient(135deg,#ea3943,#d32f3f)}
.da-btn.buy{background:linear-gradient(135deg,#16c784,#0ea06a)}

/* ========== C2C ========== */
.c2c-asset-row{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px 8px;
}
.c2c-pair{display:flex;align-items:center;gap:2px;font-size:20px;font-weight:800}
.c2c-fiat{color:var(--text2);font-size:16px}
.c2c-pair .chev{width:18px;height:18px;color:var(--text3)}
.c2c-rate{text-align:right}
.c2c-rate-label{display:block;font-size:10px;color:var(--text3)}
.c2c-rate-val{font-size:12px;color:var(--text2)}

.c2c-tabs{
  display:flex;margin:8px 16px;background:var(--card);border-radius:10px;padding:3px;
}
.c2ctab{
  flex:1;text-align:center;padding:9px 0;border-radius:8px;
  font-size:14px;font-weight:600;color:var(--text2);cursor:pointer;
}
.c2ctab.active{background:var(--accent);color:#fff}

.c2c-filter-row{padding:4px 16px 8px;overflow-x:auto}
#payFilterWrap{display:flex;gap:8px}
.cf-item{
  flex-shrink:0;padding:5px 14px;border-radius:14px;
  font-size:12px;color:var(--text2);border:1px solid var(--border);cursor:pointer;
}
.cf-item.active{color:#fff;border-color:var(--accent);background:rgba(45,108,255,.15)}

.merchant-list{padding:0 12px 10px}
.merchant-card{
  background:var(--card);border-radius:var(--radius);
  padding:13px;margin-bottom:10px;cursor:pointer;
  border:1px solid transparent;
}
.merchant-card:active{border-color:var(--accent)}
.mc-head{display:flex;align-items:center;gap:10px}
.mc-avatar{
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;color:#fff;
}
.mc-info{flex:1;min-width:0}
.mc-name{font-size:14px;font-weight:700;display:flex;align-items:center;gap:6px}
.mc-tag{
  font-size:9px;color:var(--gold);border:1px solid rgba(240,185,11,.5);
  border-radius:3px;padding:0 4px;
}
.mc-stats{font-size:10px;color:var(--text3);margin-top:2px}
.mc-side{
  font-size:13px;font-weight:700;padding:4px 10px;border-radius:6px;color:#fff;
}
.mc-side.buy{background:rgba(22,199,132,.15);color:var(--up)}
.mc-side.sell{background:rgba(234,57,67,.15);color:var(--down)}
.mc-ad{margin-top:9px;font-size:12px;color:var(--text2);line-height:1.5}
.mc-bottom{
  display:flex;align-items:flex-end;justify-content:space-between;margin-top:9px;
}
.mc-price{font-size:16px;font-weight:800;font-variant-numeric:tabular-nums}
.mc-price small{font-size:10px;color:var(--text3);font-weight:400;margin-left:3px}
.mc-limit{font-size:11px;color:var(--text3);text-align:right;line-height:1.6}
.mc-pays{display:flex;gap:6px;margin-top:9px}
.pay-chip{
  display:flex;align-items:center;gap:3px;
  font-size:10px;color:var(--text2);
  background:var(--card2);border-radius:4px;padding:2px 6px;
}
.pay-chip .icon{width:12px;height:12px}
.c2c-empty{text-align:center;color:var(--text3);padding:50px 0}

/* ========== 弹窗 ========== */
.mask{
  position:fixed;inset:0;z-index:200;
  background:rgba(0,0,0,.65);
  display:flex;align-items:flex-end;justify-content:center;
}
.sheet{
  width:100%;max-width:520px;
  background:var(--bg2);border-radius:16px 16px 0 0;
  padding:10px 16px calc(20px + env(safe-area-inset-bottom));
  animation:slideUp .25s ease;
}
@keyframes slideUp{from{transform:translateY(40px);opacity:.5}to{transform:none;opacity:1}}
.sheet-handle{
  width:36px;height:4px;border-radius:2px;background:var(--border);
  margin:0 auto 12px;
}
.sheet-title{font-size:17px;font-weight:800;text-align:center}
.sheet-merchant{text-align:center;font-size:12px;color:var(--text3);margin-top:4px}

.order-input-block{margin-top:14px;background:var(--card);border-radius:10px;padding:4px 14px}
.oi-row{display:flex;align-items:center;padding:12px 0}
.oi-row+.oi-row{border-top:1px solid rgba(35,40,80,.4)}
.oi-row label{width:56px;font-size:13px;color:var(--text2)}
.oi-input{flex:1;display:flex;align-items:center;gap:8px}
.oi-input input{
  flex:1;background:none;border:none;color:var(--text);
  font-size:20px;font-weight:700;text-align:right;font-variant-numeric:tabular-nums;
}
.oi-input input::placeholder{color:var(--text3);font-weight:400}
.oi-unit{font-size:13px;color:var(--text2);min-width:40px;text-align:left}
.oi-tip{font-size:11px;color:var(--text3);padding:8px 0 10px}

.pay-methods{margin-top:12px}
.pm-title{font-size:12px;color:var(--text2);margin-bottom:8px}
.pm-list{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.pm-item{
  display:flex;align-items:center;gap:8px;
  border:1px solid var(--border);border-radius:10px;
  padding:10px;font-size:12px;cursor:pointer;
}
.pm-item.active{border-color:var(--accent);background:rgba(45,108,255,.08)}
.pm-item .pm-check{
  width:16px;height:16px;border-radius:50%;border:1px solid var(--text3);
  margin-left:auto;display:flex;align-items:center;justify-content:center;
  color:transparent;font-size:11px;
}
.pm-item.active .pm-check{border-color:var(--accent);background:var(--accent);color:#fff}

.order-confirm{
  width:100%;margin-top:16px;padding:13px 0;border-radius:10px;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff;font-size:15px;font-weight:700;cursor:pointer;
}

/* 成功弹窗 */
.success-sheet{text-align:center;padding:30px 16px 24px}
.success-icon{
  width:56px;height:56px;border-radius:50%;margin:0 auto;
  background:rgba(22,199,132,.15);color:var(--up);
  display:flex;align-items:center;justify-content:center;
  font-size:28px;font-weight:800;
}
.success-title{font-size:18px;font-weight:800;margin-top:14px}
.success-desc{font-size:12px;color:var(--text2);margin-top:8px}
.success-close{
  width:100%;margin-top:18px;padding:13px 0;border-radius:10px;
  background:var(--accent);color:#fff;font-size:15px;font-weight:700;cursor:pointer;
}

/* ========== 底部导航 ========== */
.tabbar{
  position:fixed;bottom:0;left:0;right:0;z-index:100;
  max-width:520px;margin:0 auto;
  height:var(--tabbar-h);
  background:rgba(18,22,43,.97);
  backdrop-filter:blur(10px);
  border-top:1px solid rgba(35,40,80,.5);
  display:flex;
  padding-bottom:env(safe-area-inset-bottom);
}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:2px;font-size:10px;color:var(--text3);cursor:pointer;
}
.tab-icon{width:22px;height:22px}
.tab-item.active{color:var(--gold)}
.tabbar-spacer{height:var(--tabbar-h)}

/* toast */
.toast{
  position:fixed;left:50%;top:45%;transform:translate(-50%,-50%);
  z-index:300;background:rgba(0,0,0,.85);color:#fff;
  padding:10px 18px;border-radius:8px;font-size:13px;
  pointer-events:none;
}