:root {
  --brand: #09428f;
  --brand-hover: #073674;
  --brand-soft: #eef4fb;
  --page-bg: #f5f6f8;
  --surface: #fff;
  --text-primary: #1d2430;
  --text-secondary: #566171;
  --border: #e1e5eb;
  --success: #216e4e;
  --warning: #8a5700;
  --danger: #b42318;
  --radius-control: 8px;
  --radius-panel: 14px;
  --shadow: 0 8px 28px rgb(27 42 68 / 7%);
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--page-bg); }
body { margin: 0; color: var(--text-primary); background: var(--page-bg); font-family: Arial, "Noto Sans", "Microsoft YaHei", sans-serif; font-size: 16px; line-height: 1.45; }
html[lang="zh-CN"] body { font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, a:focus-visible { outline: 3px solid rgb(9 66 143 / 30%); outline-offset: 2px; }

.login-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: linear-gradient(125deg, #f5f6f8 0%, #eaf1fb 100%); }
.login-card { width: min(100%, 430px); padding: 40px; background: #fff; border: 1px solid var(--border); border-radius: 18px; box-shadow: 0 18px 52px rgb(9 66 143 / 10%); }
.brand-logo { display: block; object-fit: contain; object-position: left center; width: 126px; height: auto; }
.login-card h1 { margin: 28px 0 8px; font-size: 1.5rem; letter-spacing: -.02em; }
.muted { color: var(--text-secondary); }
.login-card form { display: grid; gap: 16px; margin-top: 28px; }
label { display: grid; gap: 6px; color: var(--text-secondary); font-size: .88rem; font-weight: 700; }
input, select, textarea { width: 100%; min-height: 42px; padding: 9px 11px; border: 1px solid #cfd6df; border-radius: var(--radius-control); color: var(--text-primary); background: #fff; }
textarea { min-height: 74px; resize: vertical; }
input::placeholder { color: #8a95a5; }

.shell { min-height: 100vh; display: grid; grid-template-columns: 224px minmax(0, 1fr); }
.sidebar { position: sticky; top: 0; height: 100vh; padding: 24px 14px; background: #fff; border-right: 1px solid var(--border); display: flex; flex-direction: column; gap: 26px; }
.sidebar .brand-logo { margin-left: 10px; }
.nav { display: grid; gap: 4px; }
.nav button { width: 100%; display: flex; align-items: center; min-height: 42px; padding: 0 12px; border: 0; border-radius: 8px; color: #344154; background: transparent; text-align: left; font-size: .94rem; }
.nav button:hover { background: #f4f7fb; color: var(--brand); }
.nav button.active { background: var(--brand-soft); color: var(--brand); font-weight: 700; }
.nav button::before { content: ""; width: 7px; height: 7px; margin-right: 11px; border: 1.5px solid currentColor; border-radius: 50%; opacity: .8; }
.sidebar-foot { margin-top: auto; padding: 0 10px; color: var(--text-secondary); font-size: .78rem; }
.main { min-width: 0; }
.topbar { min-height: 72px; padding: 0 28px; display: flex; align-items: center; justify-content: space-between; gap: 18px; border-bottom: 1px solid var(--border); background: rgb(255 255 255 / 95%); }
.breadcrumb { display: flex; gap: 10px; align-items: center; min-width: 0; }
.breadcrumb h1 { margin: 0; font-size: 1.04rem; letter-spacing: -.01em; }
.breadcrumb span { color: var(--text-secondary); font-size: .86rem; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.language-switch { display: inline-flex; padding: 3px; background: #f1f3f6; border-radius: 7px; }
.language-switch button { padding: 6px 9px; border: 0; border-radius: 5px; color: var(--text-secondary); background: transparent; font-size: .82rem; }
.language-switch button.active { color: var(--brand); background: #fff; box-shadow: 0 1px 3px rgb(0 0 0 / 10%); font-weight: 700; }
.user-menu { color: var(--text-secondary); font-size: .86rem; }
.workspace { max-width: 1520px; margin: 0 auto; padding: 30px; }

.page-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 22px; }
.page-head h2 { margin: 0; font-size: 1.45rem; letter-spacing: -.025em; }
.page-head p { margin: 5px 0 0; color: var(--text-secondary); }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-panel); box-shadow: var(--shadow); }
.panel + .panel { margin-top: 20px; }
.panel-body { padding: 20px; }
.search-panel { display: grid; grid-template-columns: minmax(0, 1fr) 240px auto; gap: 10px; padding: 14px; }
.search-panel input { min-height: 48px; }
.buttons { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.button { min-height: 40px; padding: 9px 14px; border: 1px solid transparent; border-radius: var(--radius-control); color: #fff; background: var(--brand); font-weight: 700; font-size: .9rem; transition: background 150ms ease, border-color 150ms ease; }
.button:hover { background: var(--brand-hover); }
.button.secondary { color: var(--brand); border-color: #bfd0e8; background: #fff; }
.button.secondary:hover { background: var(--brand-soft); }
.button.quiet { color: var(--text-secondary); border-color: var(--border); background: #fff; font-weight: 600; }
.button.danger { background: var(--danger); }
.button:disabled { cursor: not-allowed; opacity: .52; }
.hint { margin: 10px 4px 0; color: var(--text-secondary); font-size: .83rem; }
.quote-tray { display: flex; align-items: center; gap: 16px; padding: 11px 13px; border: 1px solid #bfd0e8; border-radius: 10px; background: var(--brand-soft); }
.quote-tray p { margin: 2px 0 0; color: var(--text-secondary); font-size: .78rem; }
.inline-qty { display: inline-flex; align-items: center; gap: 5px; font-size: .76rem; }
.inline-qty input { width: 66px; min-height: 32px; }
.quote-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 15px; }
.save-status { display: inline-flex; min-height: 28px; align-items: center; padding: 3px 8px; border-radius: 99px; color: var(--success); background: #eaf5ef; font-size: .76rem; font-weight: 700; }
.save-status.saving { color: var(--warning); background: #fff4df; }
.save-status.failed { color: #fff; background: var(--danger); }
.danger-text { color: var(--danger); }

.result-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(315px, 1fr)); gap: 14px; margin-top: 18px; }
.part-card { padding: 17px; border: 1px solid var(--border); border-radius: 12px; background: #fff; transition: border-color 150ms ease, box-shadow 150ms ease; }
.part-card:hover { border-color: #b7cce6; box-shadow: 0 6px 18px rgb(9 66 143 / 8%); }
.part-top { display: flex; gap: 12px; justify-content: space-between; align-items: flex-start; }
.part-code { color: var(--brand); font-family: ui-monospace, "Cascadia Mono", monospace; font-size: .83rem; font-weight: 800; letter-spacing: .02em; }
.part-card h3 { margin: 6px 0 2px; font-size: 1rem; line-height: 1.35; }
.part-card h3 + p { margin: 0; color: var(--text-secondary); font-size: .85rem; }
.price { margin-top: 17px; color: var(--text-primary); font-size: 1.18rem; font-weight: 800; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.price small { display: block; margin-top: 2px; color: var(--text-secondary); font-size: .75rem; font-weight: 500; letter-spacing: 0; }
.status { display: inline-flex; align-items: center; min-height: 24px; padding: 3px 8px; border-radius: 99px; font-size: .75rem; font-weight: 700; white-space: nowrap; }
.status.ready { color: var(--success); background: #eaf5ef; }
.status.review, .status.pending { color: var(--warning); background: #fff4df; }
.status.verified { color: var(--success); background: #eaf5ef; }
.status.unverified { color: var(--warning); background: #fff4df; }
.card-actions { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-top: 15px; }
.text-button { padding: 6px 0; border: 0; color: var(--brand); background: transparent; font-weight: 700; font-size: .85rem; }

.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.metric { padding: 20px; }
.metric small { color: var(--text-secondary); font-size: .82rem; font-weight: 700; }
.metric strong { display: block; margin-top: 8px; font-size: 1.5rem; letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.metric p { margin: 3px 0 0; color: var(--text-secondary); font-size: .78rem; }

.quote-layout { display: grid; grid-template-columns: minmax(0, 1fr) 315px; gap: 20px; align-items: start; }
.quote-card { padding: 20px; }
.quote-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.quote-meta .wide { grid-column: span 2; }
.table-wrap { overflow-x: auto; margin-top: 20px; border: 1px solid var(--border); border-radius: 10px; }
table { width: 100%; border-collapse: collapse; min-width: 880px; }
th { position: sticky; top: 0; z-index: 1; padding: 11px; color: #425069; background: #f7f8fa; border-bottom: 1px solid var(--border); text-align: left; font-size: .76rem; font-weight: 800; white-space: nowrap; }
td { padding: 10px 11px; border-bottom: 1px solid #edf0f4; vertical-align: middle; font-size: .86rem; }
tr:last-child td { border-bottom: 0; }
td .compact { min-height: 34px; padding: 5px 7px; font-size: .84rem; }
.number { text-align: right; font-variant-numeric: tabular-nums; }
.quote-summary { padding: 20px; position: sticky; top: 92px; }
.quote-summary h3 { margin: 0 0 15px; font-size: 1rem; }
.total-row { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; color: var(--text-secondary); font-size: .9rem; }
.total-row strong { color: var(--text-primary); font-variant-numeric: tabular-nums; }
.total-row.grand { margin-top: 8px; padding-top: 15px; border-top: 1px solid var(--border); color: var(--text-primary); font-size: 1rem; font-weight: 800; }
.total-row.grand strong { color: var(--brand); font-size: 1.18rem; }
.quote-summary .buttons { display: grid; margin-top: 18px; }
.quote-summary .button { width: 100%; text-align: center; }

.two-column { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .8fr); gap: 20px; }
.list { display: grid; gap: 0; }
.list-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px; align-items: center; padding: 15px 0; border-bottom: 1px solid #edf0f4; }
.list-row:last-child { border-bottom: 0; }
.list-row h3 { margin: 0; font-size: .96rem; }
.list-row p { margin: 3px 0 0; color: var(--text-secondary); font-size: .83rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
.form-grid .wide { grid-column: span 2; }
.pending-list { display: grid; gap: 10px; }
.pending-item { padding: 14px; border: 1px solid var(--border); border-radius: 10px; }
.pending-item h3 { margin: 0; font-size: .94rem; }
.pending-item p { margin: 4px 0 0; color: var(--text-secondary); font-size: .83rem; }

.empty { padding: 38px 20px; border: 1px dashed #cfd6df; border-radius: 12px; color: var(--text-secondary); text-align: center; }
.toast-region { position: fixed; right: 18px; bottom: 18px; z-index: 10; display: grid; gap: 8px; width: min(390px, calc(100vw - 36px)); }
.toast { padding: 13px 15px; color: #fff; border-radius: 10px; background: #1d2430; box-shadow: 0 10px 28px rgb(0 0 0 / 18%); font-size: .88rem; }
.toast.error { background: var(--danger); }
.toast.success { background: var(--success); }
.detail-modal { position: fixed; inset: 0; z-index: 8; display: grid; place-items: end; background: rgb(12 25 42 / 34%); }
.detail-sheet { width: min(620px, 100%); height: 100%; overflow: auto; padding: 28px; background: #fff; box-shadow: -18px 0 40px rgb(0 0 0 / 12%); }
.detail-sheet header { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; }
.detail-sheet h2 { margin: 0; font-size: 1.3rem; }
.detail-section { margin-top: 26px; }
.detail-section h3 { margin: 0 0 8px; font-size: .92rem; }
.detail-section p { margin: 0; color: var(--text-secondary); white-space: pre-wrap; }

.batch-toolbar { display: flex; align-items: center; flex-wrap: wrap; gap: 10px 14px; margin-top: 14px; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; background: #f8fbff; font-size: .85rem; }
.batch-toolbar label { display: inline-flex; align-items: center; gap: 5px; color: var(--text-secondary); }
.batch-toolbar input:not([type="checkbox"]), .batch-toolbar select { min-height: 32px; max-width: 136px; padding: 4px 6px; }

/* V3: quote work is table-first; controls appear only after a user selects rows. */
.v3-search-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(295px, 1fr)); gap: 16px; }
.v3-part-card { display: flex; flex-direction: column; gap: 12px; min-height: 260px; }
.v3-part-card h3 { margin: 4px 0 0; font-size: 1.05rem; }
.v3-part-card p { margin: 0; color: var(--text-secondary); }
.v3-meta { display: flex; flex-wrap: wrap; gap: 8px; color: var(--text-secondary); font-size: .82rem; }
.v3-price-panel { padding: 11px 12px; background: #f5f8fc; border-radius: 9px; }
.v3-price-panel strong { display: block; color: var(--brand); font-size: 1.05rem; }
.v3-price-panel small { display: block; margin-top: 4px; color: var(--text-secondary); }
.v3-variants { font-size: .84rem; color: var(--text-secondary); }
.v3-variants summary { cursor: pointer; }
.v3-variants select { margin-top: 8px; }
.v3-card-actions { display: grid; grid-template-columns: 74px 1fr auto; gap: 8px; align-items: end; margin-top: auto; }
.v3-card-actions label { font-size: .8rem; color: var(--text-secondary); }
.v3-card-actions input, .v3-card-actions select { min-height: 36px; }
.v3-quote-head { display: flex; justify-content: space-between; gap: 16px; align-items: start; }
.v3-quote-basics { display: grid; grid-template-columns: minmax(220px, 1fr) 180px; gap: 12px; }
.v3-quote-basics .wide { grid-column: span 2; }
.v3-quote-more { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border); }
.v3-quote-more summary { cursor: pointer; color: var(--brand); font-weight: 600; }
.v3-quote-more .form-grid { margin-top: 12px; }
.v3-quote-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.v3-bulk-slot { min-height: 0; }
.v3-bulk-bar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 11px 13px; margin-top: 14px; border-radius: 10px; background: #edf4ff; border: 1px solid #bfd4f1; }
.v3-bulk-bar strong { color: var(--brand); margin-right: 4px; }
.v3-bulk-bar .text-button { padding: 6px 9px; }
.v3-quote-table { min-width: 1020px; }
.v3-quote-table th:first-child, .v3-quote-table td:first-child { width: 38px; text-align: center; }
.v3-quote-table input[type="checkbox"], .v3-quote-table input[type="checkbox"]:focus { width: 17px; min-width: 17px; height: 17px; min-height: 17px; padding: 0; accent-color: var(--brand); }
.v3-quote-table .compact { min-width: 74px; min-height: 34px; padding: 5px 7px; }
.v3-item-name { min-width: 180px; }
.v3-item-name strong, .v3-item-name small { display: block; }
.v3-item-name small { margin-top: 3px; color: var(--text-secondary); }
.v3-quote-footer { position: sticky; bottom: 12px; z-index: 3; display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 16px; padding: 13px 15px; border: 1px solid #c8d7ea; border-radius: 12px; background: rgb(255 255 255 / 96%); box-shadow: 0 8px 24px rgb(15 45 85 / 10%); backdrop-filter: blur(8px); }
.v3-totals { display: flex; gap: 22px; align-items: center; }
.v3-totals strong { color: var(--brand); font-size: 1.12rem; }
.v3-quote-list-card { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--border); }
.v3-quote-list-card:last-child { border-bottom: 0; }
.v3-trash-toggle { margin-right: auto; }
.v3-customs-copy { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.v3-current-name { font-size: 1.08rem; color: var(--text-primary); }
.v3-history-note { color: var(--text-secondary); font-size: .84rem; }

@media (max-width: 720px) {
  .v3-card-actions { grid-template-columns: 1fr 1fr; }
  .v3-card-actions select { grid-column: span 2; }
  .v3-quote-basics { grid-template-columns: 1fr; }
  .v3-quote-basics .wide { grid-column: span 1; }
  .v3-quote-head, .v3-quote-footer { align-items: stretch; flex-direction: column; }
  .v3-totals { justify-content: space-between; }
}

@media (max-width: 1050px) {
  .shell { grid-template-columns: 74px minmax(0, 1fr); }
  .sidebar { padding: 18px 10px; align-items: center; }
  .sidebar .brand-logo { width: 42px; margin: 0; object-position: left; }
  .nav button { width: 44px; padding: 0; justify-content: center; font-size: 0; }
  .nav button::before { width: 12px; height: 12px; margin: 0; }
  .sidebar-foot { display: none; }
  .quote-layout { grid-template-columns: 1fr; }
  .quote-summary { position: static; }
}
@media (max-width: 720px) {
  .shell { display: block; padding-bottom: 64px; }
  .sidebar { position: fixed; z-index: 5; bottom: 0; top: auto; width: 100%; height: 64px; padding: 7px; flex-direction: row; justify-content: space-around; border-top: 1px solid var(--border); border-right: 0; }
  .sidebar .brand-logo { display: none; }
  .nav { display: flex; width: 100%; justify-content: space-around; }
  .nav button { width: auto; min-width: 42px; height: 46px; }
  .topbar { min-height: 58px; padding: 0 14px; }
  .topbar .user-menu { display: none; }
  .breadcrumb span { display: none; }
  .workspace { padding: 18px 14px; }
  .page-head { display: block; }
  .page-head .buttons { margin-top: 14px; }
  .quote-tray { align-items: flex-start; flex-direction: column; }
  .search-panel { grid-template-columns: 1fr; }
  .metric-grid, .two-column { grid-template-columns: 1fr; }
  .quote-meta, .form-grid { grid-template-columns: 1fr; }
  .batch-toolbar { align-items: stretch; flex-direction: column; }
  .quote-meta .wide, .form-grid .wide { grid-column: span 1; }
  .login-card { padding: 30px 22px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }