/* ===== 主题变量 ===== */
:root, html[data-theme="light"] {
  --bg: #f4f6fa; --card: #ffffff; --text: #1c2330; --muted: #6b7688;
  --border: #e3e8f0; --accent: #2563eb; --accent-soft: #eaf1fe;
  --up: #d92f2f; --down: #0a8f4e; --hover: #f0f4fa;
  --shadow: 0 1px 4px rgba(20,35,70,.07);
}
html[data-theme="dark"] {
  --bg: #14181f; --card: #1d232d; --text: #e4e9f2; --muted: #8b95a7;
  --border: #2c3442; --accent: #5b8def; --accent-soft: #24304a;
  --up: #ff6b6b; --down: #4ade80; --hover: #252d3a;
  --shadow: 0 1px 4px rgba(0,0,0,.4);
}
html[data-theme="green"] {
  --bg: #e8f2e6; --card: #f7fcf5; --text: #22372a; --muted: #5e7a68;
  --border: #cfe3cd; --accent: #1d7a4f; --accent-soft: #ddf0e0;
  --up: #c22f2f; --down: #0a7d45; --hover: #edf6ea;
  --shadow: 0 1px 4px rgba(40,80,50,.1);
}
/* ===== 字号 ===== */
html[data-fs="sm"] { font-size: 13px; }
html[data-fs="md"] { font-size: 15px; }
html[data-fs="lg"] { font-size: 17px; }

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.55;
  transition: background .25s, color .25s;
}
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: .82rem; }

/* ===== 登录 ===== */
.login-layer { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; background: var(--bg); z-index: 100; }
.login-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 2.2rem 2.4rem; width: min(360px, 92vw); box-shadow: var(--shadow); text-align: center; }
.login-logo { font-size: 2.4rem; }
.login-card h1 { font-size: 1.25rem; margin: .4rem 0 .2rem; }
.login-sub { color: var(--muted); font-size: .82rem; margin-bottom: 1.4rem; }
.login-card input { width: 100%; padding: .6rem .8rem; margin-bottom: .8rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); font-size: .95rem; }
.login-card input:focus { outline: none; border-color: var(--accent); }
.login-card button { width: 100%; padding: .65rem; border: none; border-radius: 8px; background: var(--accent); color: #fff; font-size: 1rem; cursor: pointer; }
.login-err { color: var(--up); font-size: .85rem; margin-top: .7rem; min-height: 1.2em; }

/* ===== 顶栏 ===== */
.topbar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: .5rem; padding: .6rem 1rem; background: var(--card); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
.topbar-left { display: flex; align-items: center; gap: .5rem; }
.logo { font-size: 1.3rem; }
.title { font-weight: 700; font-size: 1.05rem; }
.topbar-right { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; }
.theme-switch, .fs-switch { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.tbtn, .fs-switch button { border: none; background: transparent; color: var(--muted); padding: .28rem .55rem; font-size: .78rem; cursor: pointer; }
.tbtn.active, .fs-switch button.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.ghost-btn { border: 1px solid var(--border); background: transparent; color: var(--muted); border-radius: 8px; padding: .3rem .7rem; font-size: .8rem; cursor: pointer; }
.ghost-btn:hover { color: var(--accent); border-color: var(--accent); }

/* ===== 布局 ===== */
.container { max-width: 1150px; margin: 0 auto; padding: 1rem; display: flex; flex-direction: column; gap: 1rem; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 1rem 1.1rem; box-shadow: var(--shadow); }
.card-head { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: .4rem; margin-bottom: .8rem; }
.card-head h2 { font-size: 1.02rem; }
.chart-lg { width: 100%; height: 420px; }
.chart-md { width: 100%; height: 300px; }

/* 添加行 */
.add-row { display: flex; gap: .5rem; }
.add-row input { flex: 1; min-width: 0; padding: .55rem .8rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); font-size: .92rem; }
.add-row input:focus { outline: none; border-color: var(--accent); }
.primary-btn { padding: .55rem 1.2rem; border: none; border-radius: 8px; background: var(--accent); color: #fff; font-size: .9rem; cursor: pointer; white-space: nowrap; }
.primary-btn:disabled { opacity: .45; cursor: not-allowed; }
.add-msg { font-size: .84rem; min-height: 1.3em; margin: .4rem 0 .2rem; }
.add-msg.err { color: var(--up); }
.add-msg.ok { color: var(--down); }

/* 基金列表 */
.fund-list { display: flex; flex-wrap: wrap; gap: .5rem; margin: .5rem 0; }
.fund-chip { display: inline-flex; align-items: center; gap: .45rem; background: var(--accent-soft); border: 1px solid var(--border); border-radius: 999px; padding: .3rem .5rem .3rem .8rem; font-size: .85rem; }
.fund-chip .tag { font-size: .68rem; padding: .06rem .4rem; border-radius: 4px; background: var(--card); color: var(--muted); }
.fund-chip input[type=checkbox] { accent-color: var(--accent); }
.fund-chip .mini-btn { border: none; background: transparent; cursor: pointer; color: var(--muted); font-size: .8rem; padding: 0 .15rem; }
.fund-chip .mini-btn:hover { color: var(--accent); }
.fund-chip .mini-btn.del:hover { color: var(--up); }
.compare-row { display: flex; align-items: center; gap: .7rem; flex-wrap: wrap; margin-top: .4rem; }
.rf-label { display: inline-flex; align-items: center; gap: .35rem; color: var(--muted); font-size: .82rem; }
.rf-label select { border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--text); padding: .2rem .35rem; }

/* 图表选项 */
.chart-opts { display: flex; gap: .8rem; font-size: .82rem; color: var(--muted); }
.chart-opts label { cursor: pointer; display: inline-flex; align-items: center; gap: .25rem; }
.chart-opts input { accent-color: var(--accent); }

/* 表格 */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .87rem; }
th, td { padding: .5rem .65rem; border-bottom: 1px solid var(--border); text-align: right; white-space: nowrap; }
th:first-child, td:first-child { text-align: left; position: sticky; left: 0; background: var(--card); }
th { color: var(--muted); font-weight: 600; font-size: .8rem; }
tbody tr:hover { background: var(--hover); }
td.fund-name { max-width: 220px; overflow: hidden; text-overflow: ellipsis; }
.up { color: var(--up); }
.down { color: var(--down); }
td.dim { color: var(--muted); }
.legend-sq { display: inline-block; width: .7em; height: .7em; border-radius: 2px; margin-right: .3em; vertical-align: baseline; }

.footer { text-align: center; color: var(--muted); font-size: .75rem; padding: 1rem 0 1.4rem; }

/* ===== 移动端 ===== */
@media (max-width: 800px) {
  .container { padding: .6rem; gap: .7rem; }
  .card { padding: .8rem .7rem; }
  .chart-lg { height: 300px; }
  .chart-md { height: 240px; }
  .add-row { flex-direction: row; }
  .add-row input { font-size: 16px; } /* 防 iOS 缩放 */
  .topbar { padding: .5rem .6rem; }
  th, td { padding: .4rem .45rem; }
  td.fund-name { max-width: 130px; }
}