:root { --pri: #1890ff; --bg: #f0f2f5; --card: #fff; --bdr: #e8e8e8; --txt: #333; --sub: #888; --ok: #52c41a; --warn: #faad14; --err: #ff4d4f; }
* { box-sizing: border-box; margin: 0; padding: 0; outline: none; }
body { font-family: -apple-system, 'Segoe UI', sans-serif; background: var(--bg); color: var(--txt); height: 100vh; display: flex; flex-direction: column; overflow: hidden; font-size: 13px; }

header { background: #001529; color: #fff; height: 56px; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; flex-shrink: 0; }
.logo { font-size: 16px; font-weight: bold; display: flex; align-items: center; gap: 8px; }
.nav { display: flex; gap: 5px; }
.nav-btn { padding: 8px 16px; border-radius: 4px; cursor: pointer; opacity: 0.7; transition: .3s; font-size: 13px; user-select: none; }
.nav-btn:hover { opacity: 1; background: rgba(255,255,255,0.1); }
.nav-btn.active { opacity: 1; background: var(--pri); color: #fff; }

.page { flex: 1; display: none; overflow: hidden; }
.page.active { display: flex; }

.calc-layout { flex: 1; display: grid; grid-template-columns: 260px 320px 1fr; gap: 12px; padding: 12px; overflow: hidden; }
.panel { background: var(--card); border-radius: 4px; border: 1px solid var(--bdr); display: flex; flex-direction: column; overflow: hidden; }
.p-head { padding: 10px 15px; background: #fafafa; border-bottom: 1px solid var(--bdr); font-weight: bold; display: flex; justify-content: space-between; align-items: center; min-height: 42px; }
.p-body { padding: 15px; overflow-y: auto; flex: 1; }
.flex-col { display: flex; flex-direction: column; }
.pad10 { padding: 10px !important; }
.bold { font-weight: bold; margin-bottom: 4px; }

.fg { margin-bottom: 10px; }
.fl { display: block; font-size: 12px; color: var(--sub); margin-bottom: 4px; }
.fc { width: 100%; padding: 5px 8px; border: 1px solid var(--bdr); border-radius: 4px; font-size: 13px; transition: .3s; }
.fc:focus { border-color: var(--pri); box-shadow: 0 0 0 2px rgba(24,144,255,.2); }
.row { display: flex; gap: 6px; }
.col { flex: 1; }
select.fc { cursor: pointer; }

.feat-list { list-style: none; max-height: 280px; overflow-y: auto; border: 1px solid var(--bdr); border-radius: 4px; margin-bottom: 10px; }
.feat-item { padding: 7px 10px; border-bottom: 1px solid var(--bdr); cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: .2s; position: relative; font-size: 12px; }
.feat-item:hover { background: #f5f5f5; }
.feat-item.active { background: #e6f7ff; border-left: 3px solid var(--pri); }
.feat-del { width: 18px; height: 18px; border-radius: 50%; background: #fff1f0; color: #cf1322; display: none; align-items: center; justify-content: center; font-size: 9px; cursor: pointer; border: 1px solid #ffa39e; flex-shrink: 0; margin-left: 6px; }
.feat-item:hover .feat-del { display: flex; }
.tag { font-size: 10px; padding: 1px 5px; border-radius: 3px; }
.tag-r { background: #fff7e6; color: #d46b08; }
.tag-f { background: #f6ffed; color: #389e0d; }

.mode-switch { display: flex; border: 1px solid var(--bdr); border-radius: 4px; overflow: hidden; margin-bottom: 10px; }
.mode-btn { flex: 1; padding: 4px 0; text-align: center; font-size: 11px; cursor: pointer; background: #fff; transition: .2s; border: none; color: var(--sub); }
.mode-btn.active { background: var(--pri); color: #fff; }

.ed-title { font-size: 12px; font-weight: bold; color: var(--pri); margin-bottom: 8px; }
.empty-hint { text-align: center; color: #bbb; padding: 20px; font-size: 11px; }

.res-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 12px; }
.res-box { padding: 10px; border-radius: 4px; text-align: center; border: 1px solid #d9eaff; background: #f0faff; }
.res-box.g { border-color: #b7eb8f; background: #f6ffed; }
.rv { font-size: 20px; font-weight: bold; color: var(--pri); margin: 2px 0; }
.res-box.g .rv { color: var(--ok); }
.rl { font-size: 11px; color: var(--sub); }
.unit { font-size: 12px; font-weight: normal; }

.ctable { width: 100%; border-collapse: collapse; font-size: 11px; margin-bottom: 12px; table-layout: fixed; }
.ctable th, .ctable td { padding: 5px 3px; text-align: center; border-bottom: 1px solid var(--bdr); word-break: break-all; }
.ctable th { background: #fafafa; color: var(--sub); font-weight: 600; white-space: nowrap; }
.info-box { font-size: 11px; color: #8c8c8c; background: #fffbe6; border: 1px solid #ffe58f; padding: 6px 8px; border-radius: 4px; line-height: 1.5; margin-bottom: 10px; }

.detail-box { background: #f9f9f9; border: 1px solid var(--bdr); border-radius: 4px; padding: 8px; margin-bottom: 10px; font-size: 11px; flex: 1; overflow-y: auto; min-height: 100px; }
.detail-item { margin-bottom: 6px; padding-bottom: 6px; border-bottom: 1px dashed #eee; }
.detail-item:last-child { border-bottom: none; margin-bottom: 0; }
.detail-title { font-weight: bold; color: var(--pri); margin-bottom: 3px; }
.quality-tag { display: inline-block; padding: 1px 5px; border-radius: 3px; font-size: 10px; }
.q-good { background: #d9f7be; color: #389e0d; }
.q-normal { background: #ffe58f; color: #d46b08; }
.q-rough { background: #ffccc7; color: #cf1322; }

.btn { padding: 5px 12px; border: none; border-radius: 4px; cursor: pointer; font-size: 12px; display: inline-flex; align-items: center; gap: 5px; transition: .3s; }
.bp { background: var(--pri); color: #fff; } .bp:hover { background: #40a9ff; }
.bo { background: #fff; border: 1px solid var(--bdr); color: var(--txt); } .bo:hover { border-color: var(--pri); color: var(--pri); }
.bg { background: #f6ffed; border: 1px solid #b7eb8f; color: #389e0d; } .bg:hover { background: #d9f7be; }
.bb { width: 100%; justify-content: center; padding: 7px; }
.bs { padding: 3px 8px; font-size: 11px; }

.lib-page { flex: 1; padding: 20px; overflow-y: auto; display: flex; flex-direction: column; }
.lib-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; flex-shrink: 0; }
.lib-title { font-size: 18px; font-weight: bold; }

.tool-tabs { display: flex; gap: 6px; margin-bottom: 15px; flex-wrap: wrap; flex-shrink: 0; }
.tool-tab { padding: 6px 16px; border-radius: 20px; border: 1px solid var(--bdr); background: #fff; cursor: pointer; font-size: 12px; transition: .3s; user-select: none; display: flex; align-items: center; gap: 5px; }
.tool-tab:hover { border-color: var(--pri); color: var(--pri); }
.tool-tab.active { background: var(--pri); color: #fff; border-color: var(--pri); }
.tool-tab .tab-count { background: rgba(0,0,0,.08); padding: 1px 6px; border-radius: 10px; font-size: 10px; }
.tool-tab.active .tab-count { background: rgba(255,255,255,.3); }

.data-table { width: 100%; border-collapse: collapse; background: #fff; font-size: 13px; }
.data-table th, .data-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--bdr); }
.data-table th { background: #fafafa; font-weight: 600; color: var(--sub); font-size: 12px; text-transform: uppercase; position: sticky; top: 0; z-index: 1; }
.data-table tr:hover { background: #fafafa; }
.data-table input, .data-table select { width: 100%; padding: 4px 6px; border: 1px solid transparent; border-radius: 3px; font-size: 12px; background: transparent; transition: .2s; }
.data-table input:hover, .data-table select:hover { border-color: var(--bdr); background: #fff; }
.data-table input:focus, .data-table select:focus { border-color: var(--pri); background: #fff; outline: none; }
.table-wrap { flex: 1; overflow-y: auto; border-radius: 4px; border: 1px solid var(--bdr); }
.act-btn { padding: 2px 8px; font-size: 11px; border-radius: 3px; cursor: pointer; border: none; margin-right: 4px; }
.act-del { background: #fff1f0; color: #cf1322; } .act-del:hover { background: #ffccc7; }

.modal-mask { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,.4); display: none; z-index: 999; align-items: center; justify-content: center; }
.modal { background: #fff; border-radius: 8px; padding: 20px; width: 320px; }
.modal h3 { margin: 0 0 15px; font-size: 15px; }
.add-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }

.mat-bar { height: 70px; background: #fff; border-top: 1px solid var(--bdr); padding: 6px 20px; display: flex; gap: 10px; overflow-x: auto; align-items: center; flex-shrink: 0; }
.mc { min-width: 150px; padding: 5px 8px; border: 1px solid var(--bdr); border-radius: 4px; cursor: pointer; transition: .2s; font-size: 11px; flex-shrink: 0; }
.mc:hover, .mc.active { border-color: var(--pri); background: #e6f7ff; }
.mc-n { font-weight: bold; color: var(--pri); margin-bottom: 1px; font-size: 12px; }
.mc-i { color: var(--sub); line-height: 1.3; }
.hidden { display: none !important; }