:root {
    --bg: #f4f7fb;
    --surface: #ffffff;
    --text: #162032;
    --muted: #667085;
    --line: #dfe5ee;
    --primary: #176b87;
    --primary-dark: #11576f;
    --primary-soft: #e7f4f7;
    --danger: #b42318;
    --success: #067647;
    --shadow: 0 10px 28px rgba(22, 32, 50, .07);
}
* { box-sizing: border-box; }
html { min-height: 100%; }
body { margin: 0; min-height: 100vh; background: var(--bg); color: var(--text); font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif; line-height: 1.55; }
a { color: var(--primary); text-decoration: none; }
button, input, textarea { font: inherit; }
.container { width: min(1180px, calc(100% - 36px)); margin-inline: auto; }
.site-header { background: #102f3c; color: #fff; box-shadow: 0 2px 12px rgba(0,0,0,.12); }
.header-inner { min-height: 68px; display: flex; align-items: center; gap: 28px; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; white-space: nowrap; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 9px; background: #5ac0c8; color: #0b3340; }
.main-nav { display: flex; gap: 6px; flex: 1; }
.main-nav a { color: #d8e7ec; padding: 9px 11px; border-radius: 7px; font-size: 14px; }
.main-nav a:hover { background: rgba(255,255,255,.1); color: #fff; }
.account-area { display: flex; align-items: center; gap: 8px; font-size: 14px; }
.badge, .tag, .count-pill { display: inline-block; padding: 2px 8px; border-radius: 999px; background: var(--primary-soft); color: var(--primary-dark); font-size: 12px; white-space: nowrap; }
.page-content { min-height: calc(100vh - 136px); padding-block: 38px 60px; }
.site-footer { min-height: 68px; display: flex; align-items: center; color: var(--muted); font-size: 13px; border-top: 1px solid var(--line); background: #fff; }
.page-heading { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 24px; }
.page-heading h1, .login-intro h1 { margin: 4px 0 6px; font-size: clamp(26px, 4vw, 38px); letter-spacing: -.03em; }
.page-heading p, .section-heading p { margin: 0; color: var(--muted); }
.eyebrow { color: var(--primary); text-transform: uppercase; letter-spacing: .12em; font-size: 12px; font-weight: 700; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow); padding: 24px; }
.card h2 { margin-top: 0; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 22px; }
.stat-card { background: linear-gradient(140deg, #fff, #f2fafb); border: 1px solid #dbe9ed; border-radius: 14px; padding: 22px; }
.stat-card span { color: var(--muted); font-size: 14px; display: block; }
.stat-card strong { display: block; font-size: 34px; margin-top: 5px; }
.quick-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.quick-links a { display: flex; flex-direction: column; padding: 18px; border: 1px solid var(--line); border-radius: 10px; color: var(--text); }
.quick-links a:hover { border-color: #79afb9; background: #f7fcfd; }
.quick-links span { color: var(--muted); font-size: 13px; margin-top: 4px; }
.button { display: inline-flex; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 8px; padding: 9px 15px; cursor: pointer; font-weight: 600; font-size: 14px; }
.button-primary { color: #fff; background: var(--primary); }
.button-primary:hover { background: var(--primary-dark); }
.button-secondary { color: var(--primary-dark); background: var(--primary-soft); border-color: #bcdde2; }
.button-ghost { background: transparent; color: inherit; border-color: currentColor; }
.button-danger { color: var(--danger); background: #fff1f0; border-color: #f7c8c4; }
.button-small { padding: 6px 10px; font-size: 12px; }
.button-block { width: 100%; margin-top: 14px; }
.button:disabled { opacity: .48; cursor: not-allowed; }
.inline-form { display: inline; margin: 0; }
.login-shell { display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 9vw; max-width: 1020px; margin: 6vh auto; }
.login-intro p { max-width: 560px; font-size: 18px; }
.login-intro .muted { font-size: 14px; }
.login-card { padding: 30px; }
.muted { color: var(--muted); }
.form-group { margin-bottom: 17px; }
.form-label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 14px; }
.form-control { width: 100%; border: 1px solid #cbd5e1; border-radius: 8px; background: #fff; padding: 10px 12px; color: var(--text); }
textarea.form-control { min-height: 100px; resize: vertical; }
.form-control:focus { outline: 3px solid rgba(23, 107, 135, .14); border-color: var(--primary); }
.form-control[readonly] { background: #f3f5f7; color: #536071; }
.is-invalid { border-color: var(--danger); }
.form-hint { color: var(--muted); font-size: 12px; margin-top: 4px; }
.form-error { color: var(--danger); font-size: 12px; margin-top: 4px; }
.checkbox-row { display: flex; align-items: center; gap: 8px; margin: 13px 0; }
.checkbox-row input, .selection-card input { width: 17px; height: 17px; accent-color: var(--primary); }
.form-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-actions { display: flex; gap: 10px; margin-top: 22px; }
.form-card { max-width: 820px; }
.flash-stack { display: grid; gap: 8px; margin-bottom: 18px; }
.flash { padding: 11px 14px; border-radius: 8px; border: 1px solid; }
.flash-success { color: #05603a; background: #ecfdf3; border-color: #abefc6; }
.flash-danger { color: #912018; background: #fef3f2; border-color: #fecdca; }
.flash-warning, .flash-info { color: #1849a9; background: #eff8ff; border-color: #b2ddff; }
.notice { padding: 14px 17px; border-radius: 10px; margin-bottom: 20px; }
.notice-info { color: #1849a9; background: #eff8ff; border: 1px solid #b2ddff; }
.section-heading { display: flex; justify-content: space-between; align-items: start; gap: 18px; margin-bottom: 18px; }
.section-heading h2 { margin-bottom: 3px; }
.selection-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 22px; }
.selection-card { display: flex; align-items: start; gap: 12px; border: 1px solid var(--line); border-radius: 10px; padding: 17px; cursor: pointer; }
.selection-card:hover { border-color: #79afb9; background: #f7fcfd; }
.selection-card span { display: flex; flex-direction: column; min-width: 0; }
.selection-card code { color: var(--primary); margin: 3px 0; }
.selection-card small { color: var(--muted); }
.empty-state { text-align: center; padding: 56px 24px; }
.empty-state.compact { padding: 30px; box-shadow: none; }
.empty-icon { font-size: 50px; color: #8eb8c0; line-height: 1; }
.admin-grid { display: grid; grid-template-columns: minmax(280px, .7fr) minmax(560px, 1.5fr); gap: 20px; align-items: start; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; text-align: left; border-bottom: 1px solid var(--line); padding: 10px 12px; white-space: nowrap; }
td { border-bottom: 1px solid #edf0f4; padding: 13px 12px; vertical-align: middle; }
tbody tr:last-child td { border-bottom: 0; }
code { font-family: Consolas, monospace; font-size: .88em; overflow-wrap: anywhere; }
.status { display: inline-block; border-radius: 999px; padding: 3px 9px; background: #f2f4f7; color: #475467; font-size: 12px; white-space: nowrap; }
.status-completed { color: var(--success); background: #ecfdf3; }
.status-failed { color: var(--danger); background: #fef3f2; }
.status-pending { color: #854a0e; background: #fffaeb; }
.actions { white-space: nowrap; }
.upload-layout { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(280px, .7fr); gap: 20px; align-items: start; }
.upload-file-heading { margin-top: 30px; }
.file-drop { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 145px; padding: 24px; border: 2px dashed #9fc5cc; border-radius: 12px; background: #f7fcfd; text-align: center; cursor: pointer; }
.file-drop:hover { border-color: var(--primary); background: #f0f9fa; }
.file-drop input { width: min(100%, 380px); margin-bottom: 12px; }
.file-drop-title { font-weight: 700; }
.file-drop-hint { color: var(--muted); font-size: 13px; margin-top: 3px; }
.selected-file-info { display: grid; grid-template-columns: 1fr 180px; gap: 14px; margin-top: 15px; padding: 14px; border-radius: 9px; background: #f6f8fa; }
.selected-file-info div { display: flex; flex-direction: column; min-width: 0; }
.selected-file-info span { color: var(--muted); font-size: 12px; }
.selected-file-info strong { overflow-wrap: anywhere; }
.upload-message { margin-top: 12px; }
.upload-actions { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }
.upload-status-card { position: sticky; top: 20px; }
.upload-status-card h2 { margin: 5px 0; }
.upload-progress { height: 18px; margin-top: 22px; overflow: hidden; border-radius: 999px; background: #e5e9ef; border: 1px solid #d2dae4; }
.upload-progress-bar { width: 0; height: 100%; background: linear-gradient(90deg, var(--primary), #49a8b5); transition: width .15s ease-out; }
[data-upload-state="failed"] .upload-progress-bar { background: var(--danger); }
[data-upload-state="completed"] .upload-progress-bar { background: var(--success); }
.upload-progress-meta { display: flex; justify-content: space-between; gap: 12px; margin-top: 9px; }
.upload-progress-meta strong { color: var(--primary-dark); font-size: 20px; }
.upload-progress-meta span, .upload-chunk-info { color: var(--muted); font-size: 13px; }
.upload-chunk-info { margin-top: 7px; }
.incomplete-card { margin-top: 20px; }
.incomplete-list { display: grid; gap: 10px; }
.incomplete-item { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 15px; border: 1px solid var(--line); border-radius: 10px; background: #fbfcfd; }
.incomplete-item > div:first-child { display: flex; flex-direction: column; min-width: 0; }
.incomplete-item strong, .incomplete-item span, .incomplete-item small { overflow-wrap: anywhere; }
.incomplete-item span, .incomplete-item small { color: var(--muted); }
.incomplete-actions { display: flex; gap: 8px; flex-shrink: 0; }
.detail-card { max-width: 920px; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 11px; overflow: hidden; }
.detail-field { display: flex; flex-direction: column; min-height: 92px; padding: 18px; background: #fff; }
.detail-field-wide { grid-column: 1 / -1; }
.detail-field > span { color: var(--muted); font-size: 13px; margin-bottom: 5px; }
.detail-field strong { font-weight: 600; }
.detail-error { background: #fff7f6; color: var(--danger); }
.break-text { overflow-wrap: anywhere; }
@media (max-width: 900px) {
    .header-inner { flex-wrap: wrap; padding-block: 12px; gap: 10px; }
    .main-nav { order: 3; width: 100%; overflow-x: auto; }
    .account-area { margin-left: auto; }
    .login-shell, .admin-grid, .upload-layout { grid-template-columns: 1fr; gap: 26px; }
    .quick-links, .selection-grid { grid-template-columns: 1fr 1fr; }
    .upload-status-card { position: static; }
}
@media (max-width: 620px) {
    .container { width: min(100% - 24px, 1180px); }
    .brand span:last-child { display: none; }
    .account-area > span { display: none; }
    .page-content { padding-top: 24px; }
    .page-heading { align-items: start; flex-direction: column; }
    .stats-grid, .quick-links, .selection-grid, .form-columns, .selected-file-info, .detail-grid { grid-template-columns: 1fr; }
    .detail-field-wide { grid-column: auto; }
    .incomplete-item { align-items: start; flex-direction: column; }
    .incomplete-actions { width: 100%; }
    .card { padding: 18px; }
    .login-shell { margin-top: 0; }
}