/* 深色主题,红涨绿跌(A股习惯) */
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: #131722; color: #d1d5db; font: 14px/1.6 "Segoe UI", "Microsoft YaHei", sans-serif; }
a { color: #7cb1ff; text-decoration: none; cursor: pointer; }
a:hover { text-decoration: underline; }

header { display: flex; justify-content: space-between; align-items: center; padding: 12px 20px; background: #1b2130; border-bottom: 1px solid #2a3245; }
header h1 { font-size: 18px; color: #fff; }
#account-bar { font-size: 14px; }

nav { display: flex; gap: 4px; padding: 8px 20px 0; background: #1b2130; }
.tab { background: none; border: none; color: #9ca3af; padding: 8px 16px; cursor: pointer; font-size: 14px; border-radius: 6px 6px 0 0; }
.tab.active { background: #131722; color: #fff; font-weight: 600; }
.tab-page { display: none; padding: 16px 20px; }
.tab-page.active { display: block; }

.cards { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.card { background: #1b2130; border-radius: 8px; padding: 10px 16px; min-width: 140px; }
.card-name { color: #9ca3af; font-size: 12px; }
.card-price { font-size: 20px; font-weight: 700; }

.row { display: flex; gap: 16px; flex-wrap: wrap; }
.col { flex: 1; min-width: 380px; }
.col.narrow { flex: 0 0 300px; }
h3 { margin: 12px 0 8px; font-size: 15px; color: #fff; }

table { width: 100%; border-collapse: collapse; margin-top: 8px; }
th, td { padding: 6px 8px; text-align: right; border-bottom: 1px solid #232a3d; white-space: nowrap; }
th { color: #9ca3af; font-weight: 500; font-size: 12px; }
th:first-child, td:first-child { text-align: left; }

.up { color: #e0393e; }
.down { color: #1ca35b; }
.muted { color: #9ca3af; font-size: 12px; }
.err { color: #f59e0b; }

.btns button { background: #232a3d; border: none; color: #d1d5db; padding: 6px 14px; cursor: pointer; border-radius: 6px; margin-right: 6px; }
.btns button.active { background: #2f6fed; color: #fff; }

.chip { display: inline-block; background: #1b2130; border-radius: 14px; padding: 3px 10px; margin: 0 6px 6px 0; cursor: pointer; }
.chip:hover { background: #232a3d; }

#quote-panel { background: #1b2130; border-radius: 8px; padding: 12px 16px; min-height: 64px; }
.quote-name { font-size: 16px; font-weight: 700; color: #fff; margin-right: 10px; }
.quote-price { font-size: 26px; font-weight: 700; margin-right: 8px; }

#kline-chart { height: 420px; background: #1b2130; border-radius: 8px; margin-top: 12px; }

#trade-panel { display: flex; align-items: center; gap: 10px; margin-top: 12px; }
#qty-input { width: 120px; padding: 8px; background: #232a3d; border: 1px solid #2a3245; color: #fff; border-radius: 6px; }
#trade-panel button { flex: 0 0 90px; padding: 9px 0; border: none; border-radius: 6px; cursor: pointer; color: #fff; font-size: 14px; font-weight: 600; }
#trade-panel .buy { background: #e0393e; }
#trade-panel .sell { background: #1ca35b; }
#trade-result { margin-top: 10px; white-space: pre-wrap; background: #1b2130; border-radius: 8px; padding: 10px 14px; min-height: 20px; }

#search-input { width: 100%; padding: 8px; background: #232a3d; border: 1px solid #2a3245; color: #fff; border-radius: 6px; }

/* 登录遮罩 */
#login-overlay { position: fixed; inset: 0; background: rgba(6, 9, 16, 0.82); display: flex; align-items: center; justify-content: center; z-index: 99; }
#login-overlay.hidden { display: none; }
.login-box { background: #1b2130; border: 1px solid #2a3245; border-radius: 10px; padding: 28px 32px; width: 320px; display: flex; flex-direction: column; gap: 10px; }
.login-box h2 { color: #fff; font-size: 18px; }
.login-box input { padding: 9px 10px; background: #232a3d; border: 1px solid #2a3245; color: #fff; border-radius: 6px; }
.login-box button { padding: 10px 0; background: #2f6fed; border: none; color: #fff; font-size: 14px; font-weight: 600; border-radius: 6px; cursor: pointer; }
.login-box button:hover { background: #2560d4; }