/* ======================================================
   Duefy — base stylesheet
   ====================================================== */

/* a11y: skip-to-content（屏幕阅读器/键盘用户跳过 nav 到主内容） */
.skip-link {
    position: absolute; top: 0; left: 0;
    background: #4F46E5; color: #fff; padding: 8px 16px;
    border-radius: 0 0 6px 0; z-index: 10000;
    text-decoration: none; font-weight: 600;
    transform: translateY(-100%);
    transition: transform .15s;
}
.skip-link:focus { transform: translateY(0); outline: none; }

/* a11y: 全局键盘 focus 可见样式（鼠标点击不会触发，仅键盘） */
:focus-visible {
    outline: 2px solid #4F46E5;
    outline-offset: 2px;
    border-radius: 4px;
}
/* a11y: 尊重用户的减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

:root {
    --primary:        #4F46E5;
    --primary-dark:   #4338CA;
    --danger:         #DC2626;
    --success:        #16A34A;
    --warning:        #D97706;
    --text:           #1F2937;
    --text-muted:     #6B7280;
    --border:         #E5E7EB;
    --bg:             #F9FAFB;
    --bg-card:        #FFFFFF;
    --radius:         10px;
    --shadow:         0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
    --space:          16px;
    --font:           -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    /* surface aliases for components */
    --bg-tertiary:    #F3F4F6;
    --accent-light:   #EEF2FF;
    --input-bg:       #FFFFFF;
}

/* ===== 暗色模式 ===== */
[data-theme="dark"] {
    --primary:        #818CF8;
    --primary-dark:   #6366F1;
    --danger:         #F87171;
    --success:        #34D399;
    --warning:        #FBBF24;
    --text:           #F9FAFB;
    --text-muted:     #9CA3AF;
    --border:         #374151;
    --bg:             #111827;
    --bg-card:        #1F2937;
    --bg-tertiary:    #374151;
    --accent-light:   #1E1B4B;
    --input-bg:       #1F2937;
    --shadow:         0 1px 3px rgba(0,0,0,.4), 0 1px 2px rgba(0,0,0,.3);
}
[data-theme="dark"] body { color-scheme: dark; }

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    font-family: var(--font);
    color: var(--text);
    background: var(--bg);
    font-size: 15px;
    line-height: 1.5;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1 { font-size: 24px; }
h2 { font-size: 18px; }

.muted { color: var(--text-muted); font-weight: 400; }
.link { color: var(--primary); cursor: pointer; }
.link-danger { color: var(--danger); }

/* ---------- Navbar ---------- */
.navbar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}
.nav-inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    height: 60px;
    gap: 28px;
}
.brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 20px;
    color: var(--primary);
}
.brand:hover { text-decoration: none; }
.nav-menu { display: flex; gap: 22px; flex: 1; }
.nav-menu a { color: var(--text-muted); font-weight: 500; }
.nav-menu a:hover { color: var(--text); text-decoration: none; }
.nav-menu a.active { color: var(--primary); }
.nav-user { display: flex; align-items: center; gap: 12px; }
.nav-username { font-weight: 500; }

/* ---------- Layout ---------- */
.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 28px 24px 60px;
}
.page-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 22px;
}
.head-actions { display: flex; gap: 10px; }
.footer {
    border-top: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-muted);
    font-size: 13px;
    padding: 18px 0;
}
.footer .nav-inner { height: auto; }

/* ---------- Card ---------- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 22px;
    margin-bottom: 20px;
}
.card-narrow { max-width: 560px; }
.card-medium { max-width: 720px; }
.card-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* ---------- Stat cards ---------- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card { padding: 18px; }

/* Customizer-reorderable lower cards (risk_clients / ai_assistant / recent_activity) */
.dashboard-stack { display: flex; flex-direction: column; }
.dashboard-stack > .card { margin-bottom: 20px; }

/* 发票相关 4 入口横排（/invoice/、/invoice/import/ 等兄弟页顶部 toolbar） */
.invoice-actions-bar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.invoice-actions-bar .btn { display: inline-flex; align-items: center; gap: 6px; }
.invoice-actions-bar .btn.is-current {
    background: #EEF2FF;
    border-color: #C7D2FE;
    color: #4F46E5;
    pointer-events: none;
}
.stat-label { color: var(--text-muted); font-size: 13px; margin-bottom: 6px; }
.stat-value { font-size: 26px; font-weight: 700; }
.stat-danger .stat-value { color: var(--danger); }

/* ---------- Forms ---------- */
.form-group { margin-bottom: 16px; }
.form-row { display: flex; gap: 14px; }
.form-row .form-group { flex: 1; }
label {
    display: block;
    font-weight: 500;
    font-size: 14px;
    margin-bottom: 6px;
}
input, select, textarea {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 15px;
    font-family: var(--font);
    background: var(--input-bg);
    color: var(--text);
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}
textarea { resize: vertical; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    padding: 9px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    background: var(--border);
    color: var(--text);
    transition: background .15s, opacity .15s;
}
.btn:hover { text-decoration: none; opacity: .9; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger  { background: var(--danger); color: #fff; }
.btn-outline {
    background: var(--bg-card);
    border-color: var(--border);
    color: var(--text);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-block { display: block; width: 100%; text-align: center; }
.btn-sm { padding: 5px 11px; font-size: 13px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.action-bar { display: flex; gap: 10px; margin-top: 18px; flex-wrap: wrap; }

/* ---------- Table ---------- */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td {
    text-align: left;
    padding: 11px 12px;
    border-bottom: 1px solid var(--border);
}
.table th {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .03em;
    color: var(--text-muted);
}
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: var(--bg); }
.row-actions { display: flex; gap: 12px; }

/* ---------- Badges ---------- */
.badge {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
}
.badge-plan      { background: #EEF2FF; color: var(--primary); }
.badge-pending   { background: #F3F4F6; color: #4B5563; }
.badge-active    { background: #DBEAFE; color: #1D4ED8; }
.badge-paid      { background: #DCFCE7; color: #15803D; }
.badge-paused    { background: #FEF3C7; color: #B45309; }
.badge-cancelled { background: #FEE2E2; color: #B91C1C; }
.badge-log-queued  { background: #F3F4F6; color: #4B5563; }
.badge-log-sent    { background: #DBEAFE; color: #1D4ED8; }
.badge-log-opened  { background: #E0E7FF; color: #4338CA; }
.badge-log-clicked { background: #DCFCE7; color: #15803D; }
.badge-log-bounced { background: #FEE2E2; color: #B91C1C; }
.badge-log-failed  { background: #FEE2E2; color: #B91C1C; }

/* ---------- Detail list ---------- */
.detail-list {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 8px 14px;
}
.detail-list dt { color: var(--text-muted); font-size: 14px; }
.detail-list dd { font-size: 14px; }

/* ---------- Timeline ---------- */
.timeline { list-style: none; }
.timeline li {
    border-left: 2px solid var(--border);
    padding: 0 0 16px 16px;
    position: relative;
}
.timeline li:before {
    content: "";
    position: absolute;
    left: -6px; top: 4px;
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--primary);
}
.tl-head { display: flex; gap: 10px; align-items: center; }
.tl-date { font-size: 12px; color: var(--text-muted); }
.tl-subject { font-weight: 500; margin: 4px 0; }
.tl-meta { font-size: 12px; }
.step-tone { font-weight: 600; font-size: 13px; }
.tl-when { font-size: 12px; }
.timeline li .btn-sm { margin-top: 6px; }
.reply-body {
    font-size: 14px; color: var(--text, #1F2937);
    background: #F9FAFB; border-radius: 8px;
    padding: 10px 12px; margin: 6px 0;
    white-space: pre-wrap;
}
.ai-box { font-size: 13px; margin: 6px 0; }
.ai-summary { color: var(--text-muted, #6B7280); margin-left: 6px; }
.badge-new {
    background: #DC2626; color: #fff;
    font-size: 11px; padding: 2px 7px; border-radius: 10px;
}
.badge-intent {
    background: #EEF2FF; color: #4F46E5;
    font-size: 11px; padding: 2px 8px; border-radius: 10px;
    text-transform: capitalize;
}
.reply-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }

/* ---------- Filter tabs ---------- */
.filter-tabs { display: flex; gap: 6px; margin-bottom: 16px; }
.filter-tabs a {
    padding: 6px 14px;
    border-radius: 8px;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 14px;
}
.filter-tabs a:hover { background: var(--bg-card); text-decoration: none; }
.filter-tabs a.active { background: var(--primary); color: #fff; }

/* ---------- Misc ---------- */
.empty { padding: 28px; text-align: center; color: var(--text-muted); }
.pagination { display: flex; gap: 12px; align-items: center; }
.code-block {
    background: #1F2937;
    color: #E5E7EB;
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 12px;
    overflow-x: auto;
    margin: 12px 0 16px;
}
.import-errors {
    margin-top: 14px;
    padding: 12px;
    background: #FEF2F2;
    border-radius: 8px;
    font-size: 13px;
}
.import-errors li { margin-left: 18px; }

/* ---------- Auth pages ---------- */
.auth-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
}
.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 36px;
    width: 100%;
    max-width: 400px;
}
.auth-brand {
    font-weight: 700;
    font-size: 22px;
    color: var(--primary);
    text-align: center;
    margin-bottom: 18px;
}
.auth-title { font-size: 21px; text-align: center; }
.auth-sub {
    color: var(--text-muted);
    text-align: center;
    font-size: 14px;
    margin: 6px 0 22px;
}
.auth-divider {
    text-align: center;
    margin: 18px 0;
    position: relative;
    color: var(--text-muted);
    font-size: 13px;
}
.auth-divider:before {
    content: "";
    position: absolute;
    top: 50%; left: 0; right: 0;
    height: 1px;
    background: var(--border);
}
.auth-divider span { background: var(--bg-card); padding: 0 10px; position: relative; }
.auth-foot { text-align: center; margin-top: 18px; font-size: 14px; }
.auth-slogan {
    text-align: center;
    font-size: 13px;
    color: var(--primary, #4F46E5);
    font-weight: 600;
    margin: 4px 0 14px;
}
.auth-slogan-cta { margin: 12px 0 0; }
.empty-cta { text-align: center; padding: 32px 16px; }
.empty-slogan {
    font-size: 20px;
    font-weight: 700;
    color: var(--text, #1E1B2E);
    margin-bottom: 6px;
}
.empty-cta .btn { margin-top: 14px; }
.form-link {
    display: inline-block;
    margin-top: 6px;
    font-size: 13px;
    color: var(--primary, #4F46E5);
    text-decoration: none;
}
.form-link:hover { text-decoration: underline; }
.msg-box {
    padding: 16px;
    border-radius: 8px;
    text-align: center;
    margin: 10px 0;
}
.msg-error   { background: #FEE2E2; color: #B91C1C; }
.msg-success { background: #DCFCE7; color: #15803D; }
.msg-warning { background: #FEF3C7; color: #B45309; }
.msg-info    { background: #EEF2FF; color: var(--primary); }

/* ---------- Toast ---------- */
#toast-root {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 9999;
}
.toast {
    padding: 12px 18px;
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    box-shadow: var(--shadow);
    animation: toast-in .2s ease;
}
.toast-success { background: var(--success); }
.toast-error   { background: var(--danger); }
.toast-info    { background: var(--primary); }
@keyframes toast-in { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; } }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
    .nav-inner { padding: 0 14px; gap: 14px; }
    .nav-menu { gap: 14px; }
    .nav-username { display: none; }
    .container { padding: 20px 14px 50px; }
    .stat-grid { grid-template-columns: 1fr 1fr; }
    .grid-2 { grid-template-columns: 1fr; }
    .form-row { flex-direction: column; gap: 0; }
    .table { font-size: 13px; }
    .table th, .table td { padding: 8px; }
}

/* ======================================================
   Settings pages
   ====================================================== */
.settings-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 24px;
}
.settings-nav { display: flex; flex-direction: column; gap: 2px; }
.settings-nav a {
    padding: 10px 14px;
    border-radius: 8px;
    color: var(--text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.settings-nav a svg { flex-shrink: 0; }

/* 通用：图标与文字内联对齐（按钮里、提示里都用） */
.icon-inline {
    display: inline-block;
    vertical-align: -3px;
    margin-right: 4px;
}
.settings-nav a:hover { background: #F3F4F6; }
.settings-nav a.active { background: #EEF2FF; color: var(--primary); }
.settings-nav-danger { color: var(--danger) !important; }
.settings-content { min-width: 0; }
.settings-content .card { margin-bottom: 20px; }
.input-readonly { background: #F9FAFB; color: var(--text-muted); }

/* toggle switch */
.toggle-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 0; border-bottom: 1px solid var(--border);
    gap: 16px;
}
.toggle-title { font-weight: 600; font-size: 14px; }
.toggle-desc  { font-size: 13px; }
.switch { position: relative; display: inline-block; width: 44px; height: 24px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
    position: absolute; inset: 0; cursor: pointer;
    background: #CBD5E1; border-radius: 24px; transition: background .15s;
}
.slider:before {
    content: ""; position: absolute; height: 18px; width: 18px;
    left: 3px; bottom: 3px; background: #fff; border-radius: 50%; transition: transform .15s;
}
.switch input:checked + .slider { background: var(--primary); }
.switch input:checked + .slider:before { transform: translateX(20px); }

/* banners / danger zone */
.info-banner {
    background: #EEF2FF; color: #3730A3;
    padding: 14px 16px; border-radius: 8px; font-size: 14px;
}
.info-banner-ok { background: #ECFDF5; color: #065F46; }
.danger-zone { border: 1px solid #FCA5A5; }
.danger-zone h2 { color: var(--danger); }

.plan-box {
    display: flex; align-items: center; justify-content: space-between;
    background: #F9FAFB; border-radius: 8px; padding: 16px 18px; margin-bottom: 16px;
}
.plan-name { font-size: 22px; font-weight: 700; color: var(--text); }

.badge-unread {
    background: var(--danger); color: #fff;
    border-radius: 11px; padding: 2px 8px; font-size: 12px;
    text-decoration: none;
}

@media (max-width: 720px) {
    .settings-layout { grid-template-columns: 1fr; }
    .settings-nav { flex-direction: row; flex-wrap: wrap; }
}

/* ---- auth page header + Google button ---- */
.auth-header {
    max-width: 420px; margin: 0 auto 16px; padding-top: 28px;
    display: flex; align-items: center; justify-content: space-between;
}
.auth-logo { font-size: 20px; font-weight: 800; color: var(--primary); text-decoration: none; }
.auth-back { font-size: 14px; color: var(--text-muted); text-decoration: none; }
.auth-back:hover { color: var(--primary); }
.btn-google {
    display: flex; align-items: center; justify-content: center; gap: 10px;
    background: #fff; border: 1px solid #ddd; color: #333; font-weight: 500;
}
.btn-google:hover { box-shadow: 0 2px 8px rgba(0,0,0,.15); }
.btn-google svg { flex-shrink: 0; }

/* ---- AI assistant card ---- */
.ai-assistant-card { border: 1px solid #C7D2FE; background: linear-gradient(180deg,#fff,#F5F3FF); }
.ai-header { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; }
.ai-icon { font-size: 20px; }
.ai-title { font-weight: 700; font-size: 16px; color: var(--text); }
.ai-badge { background: #EEF2FF; color: var(--primary); font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 10px; }
.ai-suggestions { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.ai-suggestions button {
    background: #fff; border: 1px solid var(--border); border-radius: 16px;
    padding: 6px 12px; font-size: 13px; color: var(--text); cursor: pointer; width: auto;
}
.ai-suggestions button:hover { border-color: var(--primary); color: var(--primary); }
.ai-input-row { display: flex; gap: 8px; }
.ai-input-row input { flex: 1; }
.ai-input-row button {
    background: var(--primary); color: #fff; border: none; border-radius: 8px;
    padding: 9px 16px; font-weight: 600; cursor: pointer; white-space: nowrap;
}
.ai-answer {
    margin-top: 14px; padding: 14px; background: #fff;
    border: 1px solid var(--border); border-radius: 8px; font-size: 14px; line-height: 1.6;
}
/* ---- AI risk alert (Dashboard) ---- */
.ai-alert-card { border: 1px solid #FCA5A5; background: #FEF2F2; }
.ai-alert-header { font-size: 15px; color: #991B1B; margin-bottom: 12px; }
.ai-alert-row { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-top: 1px solid #FECACA; font-size: 14px; }
.ai-alert-hint { color: var(--text-muted); font-size: 13px; flex: 1; }
/* ---- client score badges ---- */
.score-badge { padding: 2px 8px; border-radius: 12px; font-weight: 700; font-size: 12px; }
.score-a { background: #D1FAE5; color: #065F46; }
.score-b { background: #DBEAFE; color: #1E40AF; }
.score-c { background: #FEF3C7; color: #92400E; }
.score-d { background: #FEE2E2; color: #991B1B; }
.score-f { background: #4B0082; color: #fff; }
/* ---- AI strategy box (invoice view) ---- */
.ai-strategy-box { border: 1px solid #C7D2FE; background: #F5F3FF; border-radius: 10px; padding: 16px; margin: 16px 0; }
.ai-strategy-header { display: flex; align-items: center; gap: 8px; font-size: 14px; margin-bottom: 8px; }
.ai-strategy-text { color: var(--text); font-size: 14px; line-height: 1.6; }
.ai-strategy-actions { display: flex; gap: 8px; margin-top: 10px; }
.btn-ai { background: #4F46E5; color: #fff; }

/* ---- AI email modal ---- */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(17,24,39,.55);
    display: flex; align-items: flex-start; justify-content: center;
    z-index: 1000; padding: 40px 16px; overflow-y: auto;
}
.modal-box {
    background: var(--bg-card); color: var(--text); border-radius: 12px; padding: 24px;
    width: 100%; max-width: 560px; position: relative;
    box-shadow: 0 20px 50px rgba(0,0,0,.25);
}
.modal-box h3 { margin: 0 0 16px; font-size: 18px; }
.modal-close {
    position: absolute; top: 12px; right: 14px; background: none; border: none;
    font-size: 24px; line-height: 1; color: var(--text-muted); cursor: pointer;
}
.modal-actions { display: flex; gap: 8px; margin-top: 16px; }
.ai-body-edit {
    border: 1px solid var(--border); border-radius: 8px; padding: 12px;
    min-height: 220px; max-height: 360px; overflow-y: auto;
    font-size: 14px; line-height: 1.6; background: #fff;
}
.ai-body-edit:focus { outline: 2px solid var(--primary); outline-offset: -1px; }

/* ---- integrations ---- */
.int-section-title { font-size: 14px; color: var(--text-muted); margin: 22px 0 10px; text-transform: uppercase; letter-spacing: .04em; }
.integration-item {
    display: flex; align-items: center; gap: 14px;
    padding: 14px 0; border-bottom: 1px solid var(--border);
}
.integration-logo {
    width: 44px; height: 44px; border-radius: 9px; background: var(--bg);
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; color: var(--primary); flex-shrink: 0;
}
.integration-info { flex: 1; }
.integration-info strong { color: var(--text); }
.integration-info p { font-size: 13px; margin: 2px 0; }
.integration-status.connected { color: #15803D; font-size: 13px; font-weight: 600; margin-right: 8px; }
.integration-actions { display: flex; gap: 8px; flex-shrink: 0; }
.integration-item-soon { opacity: .65; }
.badge-coming-soon { background: #FEF3C7; color: #92400E; }
.webhook-url-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 8px 0; }
.webhook-url-row code {
    background: var(--bg); padding: 8px 12px; border-radius: 7px;
    font-size: 12px; word-break: break-all; flex: 1; min-width: 200px;
}

/* ===== 迁移页面 ===== */
.migrate-page { max-width: 900px; margin: 0 auto; padding: 40px 24px; }
.migrate-hero { text-align: center; margin-bottom: 48px; }
.migrate-hero h1 { font-size: 36px; font-weight: 800; color: #111; margin-bottom: 12px; }
.migrate-hero p  { font-size: 18px; color: #6B7280; }

.migrate-section { margin-bottom: 48px; }
.migrate-section h2 { font-size: 22px; font-weight: 700; margin-bottom: 16px; }

/* 来源卡片 */
.migrate-api-grid, .migrate-csv-grid {
    display: grid; gap: 16px; margin-top: 16px;
}
.migrate-api-grid { grid-template-columns: repeat(3, 1fr); }
.migrate-csv-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }

.migrate-source-card {
    border: 2px solid #E5E7EB; border-radius: 12px; padding: 20px;
    text-decoration: none; color: #111; transition: all 0.2s;
    display: flex; flex-direction: column; align-items: center; text-align: center;
}
.migrate-source-card:hover { border-color: #4F46E5; box-shadow: 0 4px 12px rgba(79,70,229,0.15); }
.migrate-card-api { border-color: #10B981; }
.migrate-source-logo { font-size: 24px; font-weight: 800; color: #4F46E5; margin-bottom: 8px; }
.migrate-source-name { font-weight: 700; font-size: 16px; }
.migrate-source-desc { font-size: 13px; color: #6B7280; margin-top: 4px; }
.migrate-badge { background: #EEF2FF; color: #4F46E5; padding: 2px 8px; border-radius: 10px; font-size: 12px; margin-top: 8px; }
.migrate-badge-easy { background: #D1FAE5; color: #065F46; }

/* 对比表格 */
.migrate-compare { display: flex; gap: 16px; align-items: center; margin: 24px 0; }
.migrate-compare-item { flex: 1; border: 2px solid #E5E7EB; border-radius: 12px; padding: 20px; }
.migrate-compare-new  { border-color: #4F46E5; background: #EEF2FF; }
.migrate-compare-brand { font-weight: 800; font-size: 18px; margin-bottom: 8px; }
.migrate-compare-price { font-size: 28px; font-weight: 800; color: #4F46E5; margin-bottom: 12px; }
.migrate-compare-features { display: flex; flex-direction: column; gap: 6px; font-size: 14px; }
.migrate-compare-arrow { font-size: 32px; color: #4F46E5; flex-shrink: 0; }

/* 上传区 */
.migrate-import-box { background: #F9FAFB; border-radius: 16px; padding: 32px; margin-bottom: 40px; }
.migrate-dropzone {
    border: 2px dashed #D1D5DB; border-radius: 12px; padding: 40px;
    text-align: center; cursor: pointer; transition: all 0.2s; background: #fff;
}
.migrate-dropzone:hover, .migrate-dropzone.drag-over {
    border-color: #4F46E5; background: #EEF2FF;
}
.migrate-dropzone-icon { font-size: 48px; margin-bottom: 12px; }

/* 预览 */
.migrate-stats { display: flex; gap: 24px; margin: 16px 0; }
.migrate-stat { background: #fff; border-radius: 8px; padding: 12px 16px; font-size: 14px; }
.migrate-stat strong { display: block; font-size: 24px; color: #111; }
.migrate-stat-green strong { color: #065F46; }
.migrate-stat-blue strong  { color: #1E40AF; }
.migrate-preview-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.migrate-preview-table th { background: #F3F4F6; padding: 8px 12px; text-align: left; }
.migrate-preview-table td { padding: 8px 12px; border-bottom: 1px solid #F3F4F6; }
.migrate-warning { background: #FEF3C7; border-left: 4px solid #F59E0B; padding: 12px 16px; border-radius: 0 8px 8px 0; margin: 16px 0; font-size: 14px; }

/* 导出引导 */
.migrate-export-guide { background: #fff; border-radius: 8px; padding: 16px 20px; margin-bottom: 24px; border: 1px solid #E5E7EB; }
.migrate-export-guide h3 { font-size: 16px; margin-bottom: 10px; }
.migrate-export-guide ol { margin: 0; padding-left: 20px; font-size: 14px; line-height: 2; }

/* 保证区块 */
.migrate-guarantee { text-align: center; padding: 32px; background: #F0FDF4; border-radius: 12px; margin-bottom: 40px; }
.migrate-guarantee-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 16px; font-size: 14px; color: #065F46; }

/* FAQ */
.migrate-faq { margin-bottom: 40px; }
.migrate-faq h2 { font-size: 22px; font-weight: 700; margin-bottom: 16px; }
.migrate-faq details { border: 1px solid #E5E7EB; border-radius: 8px; margin-bottom: 8px; }
.migrate-faq summary { padding: 16px 20px; cursor: pointer; font-weight: 600; }
.migrate-faq details p { padding: 0 20px 16px; color: #4B5563; }

/* 迁移成功横幅 */
.migration-success-banner {
    background: linear-gradient(135deg, #4F46E5, #7C3AED);
    color: #fff; border-radius: 12px; padding: 20px 24px;
    display: flex; align-items: center; gap: 16px; margin-bottom: 24px;
}
.migration-success-icon { font-size: 32px; flex-shrink: 0; }
.migration-success-content { flex: 1; }
.migration-success-content strong { display: block; font-size: 16px; margin-bottom: 4px; }
.migration-bonus { display: block; margin-top: 6px; font-size: 13px; opacity: 0.9; }

/* 落地页迁移入口 */
.migrate-cta-section {
    max-width: 900px; margin: 0 auto; padding: 48px 24px; text-align: center;
}
.migrate-cta-section h2 { font-size: 22px; font-weight: 700; color: #111; margin-bottom: 8px; }
.migrate-cta-section p { font-size: 16px; color: #6B7280; margin-bottom: 24px; }
.migrate-cta-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px; max-width: 720px; margin: 0 auto;
}
.migrate-cta-grid a {
    border: 1px solid #E5E7EB; border-radius: 10px; padding: 14px 18px;
    text-decoration: none; color: #4F46E5; font-weight: 600; font-size: 14px;
    background: #fff; transition: all 0.2s;
}
.migrate-cta-grid a:hover {
    border-color: #4F46E5; background: #EEF2FF; box-shadow: 0 4px 12px rgba(79,70,229,0.15);
}

/* 迁移历史空状态 */
.migrate-history-empty { text-align: center; padding: 32px; color: #6B7280; }
.migrate-history-empty p { margin-bottom: 16px; }

/* 响应式 */
@media (max-width: 768px) {
    .migrate-api-grid { grid-template-columns: 1fr; }
    .migrate-compare   { flex-direction: column; }
    .migrate-compare-arrow { transform: rotate(90deg); }
    .migrate-guarantee-grid { grid-template-columns: 1fr 1fr; }
    .migrate-stats      { flex-direction: column; }
}

/* ========================================================================
   Migration lifecycle — added for migration lifecycle feature
   ======================================================================== */

/* --- Text & badge helpers --- */
.text-warning { color: #B45309; }
.text-muted   { color: #6B7280; }

.badge-danger,
.badge-warning,
.badge-info {
    display: inline-block;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 8px;
    line-height: 1.6;
}
.badge-danger  { background: #FEE2E2; color: #B91C1C; }
.badge-warning { background: #FEF3C7; color: #B45309; }
.badge-info    { background: #DBEAFE; color: #1D4ED8; }

/* --- Dual upload (Chaser) --- */
.migrate-dual-upload {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 8px;
}
.migrate-upload-col label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #374151;
    margin-bottom: 8px;
}
.migrate-dropzone-sm {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: 120px;
    padding: 20px;
    text-align: center;
    border: 2px dashed #E5E7EB;
    border-radius: 12px;
    background: #F9FAFB;
    color: #6B7280;
    cursor: pointer;
    transition: border-color .2s, background .2s;
}
.migrate-dropzone-sm:hover,
.migrate-dropzone-sm.drag-over {
    border-color: #4F46E5;
    background: #EEF2FF;
}
.migrate-dropzone-sm.has-file {
    border-style: solid;
    border-color: #4F46E5;
    background: #EEF2FF;
}
.migrate-dropzone-sm input[type="file"] { display: none; }
.migrate-dropzone-sm-text { font-size: 14px; }
.migrate-dropzone-sm-file {
    font-size: 13px;
    font-weight: 600;
    color: #4F46E5;
}
.migrate-dual-upload-actions {
    margin-top: 16px;
}

/* --- Import progress bar --- */
.migrate-progress-box {
    margin-top: 20px;
    padding: 20px;
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    background: #F9FAFB;
}
.migrate-progress-header {
    font-size: 15px;
    font-weight: 600;
    color: #374151;
    margin-bottom: 12px;
}
.migrate-progress-bar-wrap {
    width: 100%;
    height: 10px;
    background: #E5E7EB;
    border-radius: 8px;
    overflow: hidden;
}
.migrate-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #6366F1, #4F46E5);
    border-radius: 8px;
    transition: width .3s ease;
}
.migrate-progress-msg {
    margin-top: 10px;
    font-size: 14px;
    color: #4F46E5;
    font-weight: 500;
}
.migrate-progress-steps {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 12px;
    font-size: 13px;
    color: #6B7280;
}

/* --- Data quality report --- */
.migrate-quality-report {
    margin: 16px 0;
    padding: 16px 20px;
    border: 1px solid #FCD34D;
    border-radius: 12px;
    background: #FFFBEB;
}
.migrate-quality-report h4 {
    margin: 0 0 6px;
    font-size: 15px;
    color: #B45309;
}
.migrate-quality-report p { font-size: 14px; color: #6B7280; margin: 6px 0; }
.migrate-quality-report a { color: #4F46E5; font-weight: 600; }
.migrate-quality-table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0;
    font-size: 13px;
}
.migrate-quality-table th,
.migrate-quality-table td {
    text-align: left;
    padding: 8px 10px;
    border-bottom: 1px solid #FDE68A;
}
.migrate-quality-table th {
    font-weight: 600;
    color: #92400E;
    background: #FEF3C7;
}

/* --- Cancel flow --- */
.cancel-flow-page {
    max-width: 640px;
    margin: 48px auto;
    padding: 0 20px;
}
.cancel-flow-container {
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    padding: 32px;
}
.cancel-step h1 { font-size: 24px; margin: 0 0 8px; color: #111827; }
.cancel-step h2 { font-size: 20px; margin: 0 0 8px; color: #111827; }
.cancel-step p  { color: #6B7280; font-size: 14px; }
.cancel-reasons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 20px;
}
.cancel-reason-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    cursor: pointer;
    font-size: 15px;
    transition: border-color .2s, background .2s;
}
.cancel-reason-item:hover { border-color: #4F46E5; background: #EEF2FF; }
.cancel-reason-item input[type="radio"] { accent-color: #4F46E5; }
.cancel-actions {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-top: 24px;
}
.save-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
}
.save-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 18px;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    background: #F9FAFB;
}
.save-option strong { color: #111827; font-size: 15px; }
.save-option p { margin: 4px 0 0; font-size: 13px; color: #6B7280; }

/* --- Quick activate card --- */
.quick-activate-card {
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    padding: 20px;
    background: #fff;
    margin-bottom: 20px;
}
.qa-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
    font-weight: 600;
    color: #111827;
}
.qa-invoices {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.qa-invoice-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    font-size: 14px;
}
.qa-client { font-weight: 500; color: #111827; }
.qa-amount { font-weight: 600; color: #111827; }
.qa-status { font-size: 13px; color: #6B7280; }
.qa-action { text-align: right; }
.qa-footer {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid #E5E7EB;
    font-size: 14px;
    color: #6B7280;
}

/* --- Migration ROI card --- */
.migration-roi-card {
    border: 1px solid #C7D2FE;
    border-radius: 12px;
    padding: 24px;
    background: #EEF2FF;
    margin-bottom: 20px;
}
.roi-header {
    font-size: 16px;
    font-weight: 700;
    color: #4F46E5;
    margin-bottom: 16px;
}
.roi-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 16px;
}
.roi-stat {
    text-align: center;
    padding: 12px;
    background: #fff;
    border-radius: 8px;
}
.roi-value { font-size: 24px; font-weight: 700; color: #4F46E5; }
.roi-label { font-size: 13px; color: #6B7280; margin-top: 4px; }
.roi-footer {
    margin-top: 16px;
    font-size: 14px;
    color: #4338CA;
}

/* --- Migration banner stats / autoconfig --- */
.migration-stats-row {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin: 12px 0;
}
.migration-autoconfig {
    margin-top: 12px;
    padding: 16px;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    background: #F9FAFB;
}
.migration-config-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 14px;
    color: #374151;
}

/* --- Export data section --- */
.export-data-section {
    border: 1px solid #E5E7EB;
    border-radius: 12px;
    padding: 24px;
    background: #fff;
}
.export-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 16px;
}

/* --- Migration lifecycle responsive --- */
@media (max-width: 768px) {
    .migrate-dual-upload   { grid-template-columns: 1fr; }
    .qa-invoice-row        { grid-template-columns: 1fr 1fr; }
    .cancel-flow-page      { margin: 24px auto; }
    .cancel-flow-container { padding: 20px; }
    .save-option           { flex-direction: column; align-items: flex-start; }
}

/* ===== Onboarding 路径选择页 ===== */
.onboarding-body { background: #F3F4F6; min-height: 100vh; }
.onboarding-page { max-width: 860px; margin: 0 auto; padding: 40px 24px; }
.onboarding-header { text-align: center; margin-bottom: 40px; }
.onboarding-welcome { text-align: center; margin-bottom: 32px; }
.onboarding-welcome h1 { font-size: 32px; font-weight: 800; }
.onboarding-welcome p  { font-size: 18px; color: #6B7280; }

.onboarding-paths {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.onboarding-path-card {
    background: #fff;
    border: 2px solid #E5E7EB;
    border-radius: 16px;
    padding: 24px;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}
.onboarding-path-card:hover { border-color: #4F46E5; box-shadow: 0 4px 16px rgba(79,70,229,0.1); }
.onboarding-path-card.selected { border-color: #4F46E5; background: #EEF2FF; }
.onboarding-path-recommended { border-color: #10B981; }
.path-badge {
    position: absolute; top: 16px; right: 16px;
    background: #10B981; color: #fff;
    padding: 2px 10px; border-radius: 10px;
    font-size: 12px; font-weight: 700;
}
.path-icon  { font-size: 36px; margin-bottom: 12px; }
.path-title { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.path-desc  { font-size: 14px; color: #6B7280; line-height: 1.5; }
.path-time  { font-size: 13px; color: #9CA3AF; margin-top: 12px; }
.onboarding-path-browse { grid-column: span 2; }
.onboarding-skip { text-align: center; margin-top: 24px; color: #9CA3AF; }
.btn-link { background: none; border: none; cursor: pointer;
            color: #6B7280; text-decoration: underline; }

/* ===== Dashboard 空状态 ===== */
.dashboard-empty { max-width: 800px; margin: 40px auto; }
.empty-hero { text-align: center; margin-bottom: 32px; }
.empty-hero h2 { font-size: 28px; font-weight: 800; color: #111; }
.empty-options { display: flex; flex-direction: column; gap: 16px; }
.empty-option {
    display: flex; align-items: flex-start; gap: 20px;
    background: #fff; border: 2px solid #E5E7EB;
    border-radius: 12px; padding: 24px;
}
.empty-option-primary { border-color: #4F46E5; background: #EEF2FF; }
.empty-option-icon { font-size: 32px; flex-shrink: 0; }
.empty-option-content h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.empty-option-content p  { color: #6B7280; margin-bottom: 16px; }
.empty-option-formats    { font-size: 12px; color: #9CA3AF; margin-top: 8px; }
.empty-manual-buttons    { display: flex; align-items: center; gap: 12px; }
.empty-footer { text-align: center; margin-top: 24px; color: #6B7280; font-size: 14px; }

/* ===== Import 提示横幅 ===== */
.import-hint-banner {
    display: flex; align-items: center; gap: 12px;
    background: #EEF2FF; border: 1px solid #C7D2FE;
    border-radius: 8px; padding: 12px 16px; margin-bottom: 24px;
}
.import-hint-icon { font-size: 18px; }
.import-hint-close {
    margin-left: auto; background: none; border: none;
    cursor: pointer; color: #9CA3AF; font-size: 16px;
}

/* ===== Client 下拉框 ===== */
.client-select-wrap { display: flex; gap: 8px; align-items: flex-start; }
.client-select-container { flex: 1; position: relative; }
.client-search-input-wrap {
    display: flex; align-items: center;
    border: 1px solid #D1D5DB; border-radius: 8px;
    background: #fff; cursor: pointer;
}
.client-search-input-wrap input {
    flex: 1; border: none; outline: none;
    padding: 10px 12px; background: transparent; cursor: pointer;
}
.client-search-arrow { padding: 0 12px; color: #9CA3AF; }
.client-dropdown {
    position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; border: 1px solid #E5E7EB;
    border-radius: 8px; box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    z-index: 100; max-height: 280px; overflow-y: auto; margin-top: 4px;
}
.client-dropdown-item {
    display: flex; flex-direction: column;
    padding: 10px 14px; cursor: pointer;
}
.client-dropdown-item:hover { background: #F3F4F6; }
.client-item-name  { font-weight: 600; font-size: 14px; }
.client-item-email { font-size: 12px; }
.client-dropdown-create {
    display: flex; align-items: center; gap: 8px;
    padding: 10px 14px; cursor: pointer;
    background: #EEF2FF; color: #4F46E5; font-weight: 600;
}
.client-dropdown-footer {
    padding: 10px 14px; cursor: pointer;
    border-top: 1px solid #F3F4F6;
    color: #4F46E5; font-weight: 600; font-size: 14px;
}
.client-dropdown-footer:hover { background: #F3F4F6; }
.client-dropdown-empty { padding: 20px; text-align: center; color: #6B7280; }
.client-selected {
    display: flex; align-items: center; gap: 8px;
    padding: 10px 12px; background: #F0FDF4;
    border: 1px solid #10B981; border-radius: 8px;
    font-weight: 600;
}
.client-add-btn { white-space: nowrap; flex-shrink: 0; }

/* ===== 快速添加客户弹窗（modal-overlay/modal-box/modal-close 已在前面定义）===== */
.modal-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 24px; border-bottom: 1px solid #E5E7EB;
}
.modal-header h3 { font-size: 18px; font-weight: 700; margin: 0; }
.modal-body   { padding: 24px; }
.modal-footer {
    padding: 16px 24px; border-top: 1px solid #E5E7EB;
    display: flex; gap: 12px; justify-content: flex-end;
}

/* ===== Onboarding 进度条 ===== */
.onboarding-progress {
    background: #EEF2FF; border: 1px solid #C7D2FE;
    border-radius: 12px; padding: 16px 20px; margin-bottom: 24px;
}
.op-header { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.op-title  { font-weight: 700; font-size: 14px; }
.op-count  { color: #6B7280; font-size: 13px; }
.op-skip   { margin-left: auto; background: none; border: none;
             cursor: pointer; color: #9CA3AF; font-size: 13px; }
.op-bar    { height: 6px; background: #C7D2FE; border-radius: 3px; margin-bottom: 12px; }
.op-bar-fill { height: 100%; background: #4F46E5; border-radius: 3px; transition: width 0.3s; }
.op-steps  { display: flex; gap: 0; flex-wrap: wrap; }
.op-step   { display: flex; align-items: center; gap: 6px;
             font-size: 13px; color: #9CA3AF; margin-right: 20px; }
.op-step.done   { color: #065F46; }
.op-step.active { color: #4F46E5; font-weight: 700; }
.op-step-icon   { font-size: 14px; }
.op-step a      { color: inherit; text-decoration: underline; }

/* ===== CSV 导入结果摘要 ===== */
.import-result-summary {
    margin-top: 16px; padding: 14px 16px; border-radius: 10px;
    border: 1px solid transparent; font-size: 14px;
}
.import-result-summary.is-success { background: #ECFDF5; border-color: #6EE7B7; }
.import-result-summary.has-errors { background: #FEF2F2; border-color: #FCA5A5; }
.import-result-summary.is-warning { background: #FFFBEB; border-color: #FCD34D; }
.import-result-summary .result-headline { font-size: 15px; }
.import-result-summary .result-headline strong { font-size: 18px; }
.import-result-summary .result-clients { margin-top: 4px; }
.import-result-summary .result-errors {
    margin: 12px 0 0; padding-left: 20px; font-size: 13px; color: #6B7280;
    max-height: 240px; overflow-y: auto;
}
.import-result-summary .result-errors li { margin-bottom: 4px; }
.import-result-summary .text-danger { color: #DC2626; }

/* ===== 第一次激活庆祝弹窗 ===== */
.celebrate-modal { text-align: center; padding: 40px 32px; }
.celebrate-modal h2 { font-size: 28px; font-weight: 800; margin-bottom: 12px; }

/* ===== 首次收款庆祝条 (Onboarding v2 Step 5) ===== */
.first-payment-celebration {
    background: linear-gradient(135deg, #ECFDF5 0%, #D1FAE5 100%);
    border: 1px solid #6EE7B7; border-radius: 12px;
    padding: 16px 20px; margin-bottom: 24px;
}
.celebration-content   { display: flex; align-items: center; gap: 16px; }
.celebration-icon      { font-size: 32px; flex: 0 0 auto; }
.celebration-text      { flex: 1; line-height: 1.4; }
.celebration-text strong { display: block; font-size: 16px; color: #065F46; }
.celebration-text span   { font-size: 13px; color: #047857; }
.celebration-close     { background: none; border: none; cursor: pointer;
                         color: #047857; font-size: 18px; }

/* 响应式 */
@media (max-width: 768px) {
    .onboarding-paths { grid-template-columns: 1fr; }
    .onboarding-path-browse { grid-column: auto; }
    .op-steps { gap: 8px; }
    .op-step  { margin-right: 0; }
}

/* ============================================================
   Optimization Part 1 — recurring, credit, tags, bulk, partial
   payments, reconciliation, multi-currency
   ============================================================ */

/* --- shared utility helpers --- */
.text-green { color: #059669; }
.btn-danger-outline {
    color: #B91C1C; border-color: #FCA5A5;
}
.btn-danger-outline:hover { background: #FEF2F2; }
.required { color: #DC2626; }
.checkbox-label {
    display: flex; align-items: center; gap: 8px;
    font-weight: 500; cursor: pointer;
}
.checkbox-label input[type="checkbox"] { width: auto; margin: 0; }

/* --- 任务 1：重复发票 --- */
.recurring-options-box {
    background: #EEF2FF; border: 1px solid #C7D2FE;
    border-radius: var(--radius); padding: 16px; margin-bottom: 16px;
}
.recurring-preview {
    margin-top: 8px; font-size: 13px; color: #4338CA;
    background: #fff; border-radius: 8px; padding: 8px 12px;
}
.recurring-badge { font-size: 13px; margin-left: 4px; cursor: default; }
.recurring-info-card {
    background: #EEF2FF; border: 1px solid #C7D2FE;
    border-radius: var(--radius); padding: 16px 20px; margin-bottom: 24px;
}
.recurring-info-card h4 { margin: 0 0 12px; font-size: 15px; }
.recurring-info-row {
    display: flex; justify-content: space-between;
    font-size: 14px; padding: 4px 0;
}
.recurring-info-row span { color: var(--text-muted); }

/* --- 任务 2：信用控制 --- */
.credit-section h3 { margin: 0 0 16px; font-size: 16px; }
.credit-bar-wrap { margin-bottom: 20px; }
.credit-bar-label {
    display: flex; justify-content: space-between;
    font-size: 13px; color: var(--text-muted); margin-bottom: 6px;
}
.credit-bar {
    height: 10px; background: #E5E7EB;
    border-radius: 5px; overflow: hidden;
}
.credit-bar-fill { height: 100%; border-radius: 5px; transition: width .3s; }
.credit-bar-ok      { background: #10B981; }
.credit-bar-warning { background: #D97706; }
.credit-bar-danger  { background: #DC2626; }
.credit-bar-pct {
    margin-top: 6px; font-size: 13px; color: var(--text-muted);
    display: flex; align-items: center; gap: 8px;
}
.credit-limit-form label {
    display: block; font-weight: 600; font-size: 13px; margin-bottom: 6px;
}
.credit-limit-form .input-row {
    display: flex; gap: 8px; align-items: center; flex-wrap: wrap;
}
.credit-limit-form .input-row input { max-width: 200px; }

/* --- 任务 6：黑名单 --- */
.blacklist-warning {
    display: flex; gap: 14px; align-items: flex-start;
    background: #FEF2F2; border: 1px solid #FCA5A5;
    border-radius: var(--radius); padding: 16px 20px; margin-bottom: 24px;
}
.blacklist-icon { font-size: 24px; line-height: 1; }
.blacklist-body { flex: 1; }
.blacklist-body strong { color: #B91C1C; }
.blacklist-body p { margin: 4px 0 0; font-size: 14px; }
.blacklist-warning .btn { flex-shrink: 0; }
.blacklist-badge { font-size: 13px; margin-left: 4px; cursor: default; }

/* --- 任务 4：批量操作 --- */
.invoice-list-controls {
    display: flex; justify-content: space-between;
    align-items: center; gap: 16px; flex-wrap: wrap;
}
.tag-filter select { min-width: 160px; }
.bulk-action-bar {
    display: none; align-items: center; gap: 16px; flex-wrap: wrap;
    background: #EEF2FF; border: 1px solid #C7D2FE;
    border-radius: var(--radius); padding: 10px 16px; margin-bottom: 16px;
}
.bulk-count { font-weight: 700; font-size: 14px; color: #4338CA; }
.bulk-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.invoice-table .invoice-checkbox-col {
    width: 40px; text-align: center;
}
.invoice-table .invoice-checkbox-col input { width: auto; margin: 0; cursor: pointer; }
.invoice-row.selected { background: #F5F3FF; }

/* --- 任务 5：标签 --- */
.tag-chip {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 3px 10px; border-radius: 999px;
    font-size: 12px; font-weight: 600; line-height: 1.6;
}
.tag-color-dot {
    width: 9px; height: 9px; border-radius: 50%;
    display: inline-block; flex-shrink: 0;
}
.tag-remove {
    background: none; border: none; cursor: pointer;
    font-size: 14px; line-height: 1; color: inherit; padding: 0;
    opacity: .7;
}
.tag-remove:hover { opacity: 1; }
.invoice-tags-section { position: relative; }
.invoice-tags-display {
    display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
}
.tag-add-btn {
    background: none; border: 1px dashed var(--border);
    border-radius: 999px; padding: 3px 12px;
    font-size: 12px; cursor: pointer; color: var(--text-muted);
}
.tag-add-btn:hover { border-color: var(--primary); color: var(--primary); }
.tag-picker {
    margin-top: 12px; border: 1px solid var(--border);
    border-radius: var(--radius); padding: 8px;
    max-width: 280px; box-shadow: var(--shadow);
}
.tag-picker-item {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 8px; border-radius: 6px;
    font-size: 13px; cursor: pointer;
}
.tag-picker-item:hover { background: var(--bg); }
.tag-picker-empty { padding: 6px 8px; font-size: 13px; }
.tag-picker-footer {
    border-top: 1px solid var(--border);
    margin-top: 6px; padding-top: 6px; font-size: 13px;
}
.tag-create-form { max-width: 420px; }
.tag-color-choices { display: flex; gap: 10px; flex-wrap: wrap; }
.tag-color-swatch {
    width: 28px; height: 28px; border-radius: 50%;
    cursor: pointer; border: 2px solid transparent;
    box-shadow: 0 0 0 1px var(--border);
}
.tag-color-swatch.selected {
    border-color: #fff;
    box-shadow: 0 0 0 2px var(--primary);
}
.tag-manage-list { display: flex; flex-direction: column; gap: 10px; }
.tag-manage-row {
    display: flex; align-items: center; gap: 14px;
    padding: 8px 0; border-bottom: 1px solid var(--border);
}
.tag-usage { font-size: 13px; margin-left: auto; }

/* --- 任务 7：部分付款 --- */
.payment-status-card { display: flex; flex-direction: column; gap: 14px; }
.payment-amounts { display: flex; flex-direction: column; gap: 6px; }
.payment-amount-row {
    display: flex; justify-content: space-between; font-size: 14px;
}
.payment-progress-bar {
    height: 10px; background: #E5E7EB;
    border-radius: 5px; overflow: hidden;
}
.payment-progress-fill {
    height: 100%; background: #10B981;
    border-radius: 5px; transition: width .3s;
}
.partial-payment-history h4 {
    margin: 0 0 8px; font-size: 14px;
}
.pp-row {
    display: flex; gap: 12px; flex-wrap: wrap; align-items: baseline;
    font-size: 13px; padding: 6px 0;
    border-bottom: 1px solid var(--border);
}
.pp-date   { color: var(--text-muted); min-width: 90px; }
.pp-method { font-weight: 600; }
.pp-amount { color: #059669; font-weight: 700; margin-left: auto; }
.pp-note   { width: 100%; font-size: 12px; }

/* --- 任务 8：自动对账 --- */
.recon-summary {
    display: flex; gap: 32px; flex-wrap: wrap;
}
.recon-summary-item { display: flex; flex-direction: column; gap: 2px; }
.recon-summary-label {
    font-size: 12px; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: .04em;
}
.recon-table-head {
    display: grid; grid-template-columns: 2fr 1.2fr 2fr;
    gap: 16px; padding: 8px 12px;
    font-size: 12px; font-weight: 700; text-transform: uppercase;
    color: var(--text-muted); border-bottom: 2px solid var(--border);
}
.recon-row {
    display: grid; grid-template-columns: 2fr 1.2fr 2fr;
    gap: 16px; padding: 14px 12px; align-items: center;
    border-bottom: 1px solid var(--border);
}
.recon-row-confirmed { background: #F0FDF4; }
.recon-bank-date { font-size: 12px; color: var(--text-muted); }
.recon-bank-desc { font-weight: 600; font-size: 14px; }
.recon-bank-amount { font-weight: 700; color: var(--text); }
.recon-bank-ref { font-size: 12px; }
.recon-conf-bar {
    height: 8px; background: #E5E7EB;
    border-radius: 4px; overflow: hidden;
}
.recon-conf-fill { height: 100%; border-radius: 4px; }
.recon-conf-high { background: #10B981; }
.recon-conf-mid  { background: #D97706; }
.recon-conf-low  { background: #DC2626; }
.recon-conf-pct  { font-size: 12px; margin-top: 4px; color: var(--text-muted); }
.recon-conf-none { font-size: 13px; }
.recon-invoice-select { width: 100%; }
.recon-confirmed-tag { font-size: 12px; margin-top: 4px; }
.recon-footer-bar {
    display: flex; gap: 12px; margin-top: 16px;
}

/* --- 任务 9：多货币 --- */
.dashboard-currency-setting {
    display: flex; align-items: center; gap: 8px;
    font-size: 13px; color: var(--text-muted); margin-bottom: 12px;
}
.dashboard-currency-setting select { width: auto; }
.currency-breakdown {
    margin-top: 12px; padding-top: 12px;
    border-top: 1px solid var(--border);
}
.currency-breakdown-row {
    display: flex; gap: 10px; align-items: baseline;
    font-size: 13px; padding: 3px 0;
}
.cb-currency { font-weight: 700; min-width: 42px; }
.cb-amount   { font-variant-numeric: tabular-nums; }
.cb-converted { margin-left: auto; font-size: 12px; }
.currency-rate-note { margin-top: 6px; font-size: 11px; }

/* --- credit note / reconciliation status badges --- */
.badge-cn-draft   { background: #F3F4F6; color: #4B5563; }
.badge-cn-issued  { background: #DBEAFE; color: #1D4ED8; }
.badge-cn-applied { background: #D1FAE5; color: #065F46; }
.badge-cn-void    { background: #FEE2E2; color: #B91C1C; }
.badge-recon-processing { background: #FEF3C7; color: #B45309; }
.badge-recon-done       { background: #D1FAE5; color: #065F46; }
.badge-recon-failed     { background: #FEE2E2; color: #B91C1C; }

@media (max-width: 768px) {
    .recon-table-head { display: none; }
    .recon-row {
        grid-template-columns: 1fr; gap: 8px;
        padding: 14px 8px;
    }
    .invoice-list-controls { flex-direction: column; align-items: stretch; }
}

/* ======================================================
   Part 2 — optimization components
   ====================================================== */

/* ----- dark mode toggle button ----- */
.dark-mode-toggle {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    width: 34px; height: 34px;
    font-size: 16px; line-height: 1;
    cursor: pointer;
    display: inline-flex; align-items: center; justify-content: center;
}
.dark-mode-toggle:hover { border-color: var(--primary); }

/* ----- nav search button ----- */
.nav-search-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 13px;
    color: var(--text-muted);
    cursor: pointer;
    display: inline-flex; align-items: center; gap: 6px;
}
.nav-search-btn:hover { border-color: var(--primary); color: var(--text); }
.nav-search-hint kbd {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 4px; padding: 1px 5px; font-size: 11px;
}

/* ----- global search modal ----- */
.global-search-box {
    background: var(--bg-card); color: var(--text);
    border-radius: 14px; width: 100%; max-width: 600px;
    box-shadow: 0 24px 60px rgba(0,0,0,.3);
    overflow: hidden; position: relative; align-self: flex-start;
}
.global-search-input-wrap {
    display: flex; align-items: center; gap: 10px;
    padding: 14px 18px; border-bottom: 1px solid var(--border);
}
.global-search-icon { font-size: 18px; }
#global-search-input {
    flex: 1; border: none; padding: 4px 0; font-size: 16px;
    background: transparent; color: var(--text);
}
#global-search-input:focus { outline: none; box-shadow: none; }
.global-search-esc {
    background: var(--bg-tertiary); border: 1px solid var(--border);
    border-radius: 5px; padding: 2px 8px; font-size: 12px; cursor: pointer;
    color: var(--text-muted);
}
.global-search-results { max-height: 60vh; overflow-y: auto; }
.search-quick-actions { padding: 10px; }
.search-quick-item, .search-result-item {
    display: flex; align-items: center; gap: 12px;
    padding: 11px 14px; border-radius: 8px;
    text-decoration: none; color: var(--text);
}
.search-quick-item:hover,
.search-result-item:hover,
.search-result-item.search-result-selected {
    background: var(--bg-tertiary); text-decoration: none;
}
.search-quick-item kbd, .search-result-type {
    margin-left: auto; font-size: 11px;
    background: var(--bg-tertiary); border: 1px solid var(--border);
    border-radius: 4px; padding: 1px 6px; color: var(--text-muted);
}
.search-result-icon { font-size: 18px; }
.search-result-content { min-width: 0; flex: 1; }
.search-result-title { font-weight: 600; }
.search-result-title mark {
    background: var(--accent-light); color: var(--primary); border-radius: 2px;
}
.search-result-subtitle { font-size: 12px; }
.search-result-type { text-transform: capitalize; }
.search-no-results { padding: 28px 20px; text-align: center; color: var(--text-muted); }
.search-no-results a { color: var(--primary); }

/* ----- keyboard shortcut hint toast (轻量浅色版) ----- */
.shortcut-hint-toast {
    position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
    background: rgba(255,255,255,0.92);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border: 1px solid #E5E7EB;
    color: #6B7280;
    padding: 8px 16px; border-radius: 20px;
    font-size: 13px; display: flex; align-items: center; gap: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08); z-index: 200;
    transition: opacity 0.5s ease;
    animation: shortcut-hint-fade-in 0.3s ease;
}
.shortcut-hint-toast kbd {
    background: #F3F4F6; border: 1px solid #D1D5DB; border-radius: 4px;
    padding: 1px 6px; font-size: 12px; font-family: monospace; color: #374151;
}
.shortcut-hint-toast button {
    background: none; border: none; color: #9CA3AF; cursor: pointer;
    font-size: 14px; padding: 0; line-height: 1;
}
.shortcut-hint-toast button:hover { color: #374151; }
@keyframes shortcut-hint-fade-in {
    from { opacity: 0; transform: translateX(-50%) translateY(8px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}
.invoice-row.keyboard-selected {
    outline: 2px solid var(--primary); outline-offset: -2px;
}

/* ----- dashboard customizer ----- */
.page-head-actions { display: flex; align-items: center; gap: 10px; }
.dashboard-customizer-overlay {
    position: fixed; inset: 0; background: rgba(17,24,39,.45); z-index: 900;
}
.dashboard-customizer {
    position: fixed; top: 0; right: 0; bottom: 0; width: 340px; max-width: 90vw;
    background: var(--bg-card); color: var(--text);
    box-shadow: -10px 0 40px rgba(0,0,0,.2); z-index: 901;
    display: flex; flex-direction: column;
}
.customizer-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 18px 20px; border-bottom: 1px solid var(--border);
}
.customizer-header h3 { margin: 0; font-size: 17px; }
.customizer-header button {
    background: none; border: none; font-size: 18px; cursor: pointer; color: var(--text-muted);
}
.customizer-body { padding: 18px 20px; flex: 1; overflow-y: auto; }
.customizer-card-list { margin-top: 12px; display: flex; flex-direction: column; gap: 8px; }
.customizer-card-item {
    display: flex; align-items: center; gap: 10px;
    background: var(--bg-tertiary); border: 1px solid var(--border);
    border-radius: 8px; padding: 10px 12px; cursor: grab;
}
.customizer-card-item.dragging { opacity: .5; }
.customizer-card-item .drag-handle { color: var(--text-muted); cursor: grab; }
.customizer-card-item .card-label { flex: 1; font-size: 14px; }
.customizer-footer {
    padding: 16px 20px; border-top: 1px solid var(--border);
    display: flex; gap: 10px;
}
.toggle-small { position: relative; display: inline-block; width: 38px; height: 22px; }
.toggle-small input { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle-slider-small {
    position: absolute; inset: 0; background: var(--border);
    border-radius: 999px; transition: background .15s; cursor: pointer;
}
.toggle-slider-small::before {
    content: ""; position: absolute; width: 16px; height: 16px;
    left: 3px; top: 3px; background: #fff; border-radius: 50%;
    transition: transform .15s;
}
.toggle-small input:checked + .toggle-slider-small { background: var(--primary); }
.toggle-small input:checked + .toggle-slider-small::before { transform: translateX(16px); }

/* ----- mobile bottom nav ----- */
.mobile-bottom-nav {
    display: none;
    position: fixed; bottom: 0; left: 0; right: 0;
    background: var(--bg-card); border-top: 1px solid var(--border);
    padding: 8px 0 env(safe-area-inset-bottom, 8px);
    z-index: 100; flex-direction: row; justify-content: space-around;
}
.mobile-nav-item {
    display: flex; flex-direction: column; align-items: center;
    text-decoration: none; color: var(--text-muted);
    font-size: 11px; gap: 2px; padding: 4px 12px; transition: color .2s;
}
.mobile-nav-item.active { color: var(--primary); }
.mobile-nav-icon { font-size: 20px; }
.mobile-nav-add { position: relative; }
.mobile-nav-add-btn {
    width: 48px; height: 48px; background: var(--primary);
    color: #fff; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 28px; margin-top: -16px;
    box-shadow: 0 4px 12px rgba(79,70,229,.4);
}

/* ----- mobile dashboard simplified view ----- */
.d-mobile-only { display: none; }
.mobile-stats-row { display: flex; gap: 10px; margin-bottom: 18px; }
.mobile-stat {
    flex: 1; background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 10px; padding: 14px; text-align: center;
}
.mobile-stat-value { font-size: 20px; font-weight: 800; }
.mobile-stat-label { font-size: 11px; color: var(--text-muted); }
.mobile-invoice-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 10px; padding: 14px; margin-bottom: 10px;
}
.mic-client { font-weight: 700; }
.mic-amount { font-size: 18px; margin: 4px 0; }
.mic-status { font-size: 12px; color: var(--text-muted); }
.mic-status.overdue { color: var(--danger); font-weight: 600; }
.mic-actions { display: flex; gap: 8px; margin-top: 10px; }

@media (max-width: 768px) {
    .mobile-bottom-nav { display: flex; }
    body { padding-bottom: 72px; }
    .d-mobile-only { display: block !important; }
    .d-desktop-only { display: none !important; }
    .btn { min-height: 44px; }
    input, select, textarea { min-height: 44px; font-size: 16px; }
    .nav-search-hint { display: none; }
    .dashboard-customizer { width: 100%; }
}

/* ----- API docs page ----- */
.api-docs-page {
    display: grid; grid-template-columns: 220px 1fr; gap: 40px; padding: 24px 0;
}
.api-docs-sidebar { position: sticky; top: 24px; align-self: start; }
.api-docs-sidebar h2 { font-size: 15px; margin-bottom: 12px; }
.api-docs-sidebar nav { display: flex; flex-direction: column; gap: 4px; }
.api-docs-sidebar nav a {
    color: var(--text-muted); text-decoration: none; font-size: 14px;
    padding: 6px 10px; border-radius: 6px;
}
.api-docs-sidebar nav a:hover { background: var(--bg-tertiary); color: var(--text); }
.api-docs-content section { margin: 36px 0; }
.api-docs-content h1 { font-size: 28px; margin-bottom: 8px; }
.api-docs-content h2 {
    font-size: 20px; margin-bottom: 12px;
    padding-bottom: 8px; border-bottom: 1px solid var(--border);
}
.api-docs-content h4 { font-size: 13px; text-transform: uppercase;
    color: var(--text-muted); margin: 16px 0 8px; letter-spacing: .04em; }
.api-docs-content pre {
    background: var(--bg-tertiary); border: 1px solid var(--border);
    border-radius: 8px; padding: 14px 16px; overflow-x: auto; font-size: 13px;
}
.api-docs-content code { font-family: monospace; }
.api-endpoint {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 10px; padding: 18px 20px; margin-bottom: 16px;
}
.endpoint-header { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.method {
    font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 4px;
    text-transform: uppercase;
}
.method.get  { background: #DBEAFE; color: #1D4ED8; }
.method.post { background: #DCFCE7; color: #15803D; }
.api-params { width: 100%; border-collapse: collapse; font-size: 13px; }
.api-params th, .api-params td {
    text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--border);
}
.api-params th { color: var(--text-muted); }

/* ----- invoice templates library ----- */
.templates-hero { text-align: center; padding: 36px 0 24px; }
.templates-hero h1 { font-size: 30px; margin-bottom: 10px; }
.templates-hero p { color: var(--text-muted); max-width: 620px; margin: 0 auto; }
.templates-filter {
    display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin-bottom: 28px;
}
.filter-btn {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 999px; padding: 6px 16px; font-size: 13px; cursor: pointer;
    color: var(--text);
}
.filter-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.templates-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px; padding-bottom: 40px;
}
.template-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 12px; overflow: hidden; display: flex; flex-direction: column;
}
.template-preview { padding: 18px; }
.template-preview-mock { border-radius: 8px; padding: 16px; }
.mock-inv-header { font-weight: 800; font-size: 15px; margin-bottom: 12px; }
.mock-inv-lines { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.mock-line { height: 8px; background: rgba(0,0,0,.08); border-radius: 4px; }
.mock-line.short { width: 60%; }
.mock-inv-total {
    color: #fff; font-size: 11px; font-weight: 700;
    padding: 6px 10px; border-radius: 4px; display: inline-block;
}
.template-info { padding: 0 18px 12px; }
.template-info h3 { font-size: 16px; margin-bottom: 4px; }
.template-info p { font-size: 13px; }
.template-actions { display: flex; gap: 8px; padding: 0 18px 14px; }
.template-cta {
    margin-top: auto; padding: 14px 18px;
    border-top: 1px solid var(--border); background: var(--bg-tertiary);
}
.template-cta p { font-size: 12px; color: var(--text-muted); margin-bottom: 8px; }

/* ----- calculators index page ----- */
.calculators-hero { text-align: center; padding: 36px 0 24px; }
.calculators-hero h1 { font-size: 30px; margin-bottom: 10px; }
.calculators-hero p { color: var(--text-muted); max-width: 620px; margin: 0 auto; }
.calculators-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px; margin-bottom: 36px;
}
.calculator-tool-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 12px; padding: 24px; text-decoration: none; color: var(--text);
    display: flex; flex-direction: column;
}
.calculator-tool-card:hover { border-color: var(--primary); text-decoration: none; }
.tool-card-icon { font-size: 32px; margin-bottom: 10px; }
.calculator-tool-card h3 { font-size: 17px; margin-bottom: 6px; }
.calculator-tool-card p { font-size: 13px; flex: 1; }
.tool-card-link { color: var(--primary); font-weight: 600; font-size: 14px; margin-top: 12px; }
.calculators-cta, .calculator-cta, .tool-cta {
    background: var(--accent-light); border-radius: 12px;
    padding: 28px; text-align: center; margin-top: 20px;
}
.calculators-cta h3, .tool-cta h3 { font-size: 18px; margin-bottom: 6px; }

/* ----- calculator pages ----- */
.calculator-page { max-width: 640px; margin: 0 auto; padding: 28px 0; }
.calculator-page h1 { font-size: 28px; margin-bottom: 8px; }
.calculator-page > p { color: var(--text-muted); margin-bottom: 20px; }
.calculator-box {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 12px; padding: 24px;
}
.input-currency { display: flex; align-items: center; }
.input-currency span {
    padding: 9px 12px; border: 1px solid var(--border); border-right: none;
    border-radius: 8px 0 0 8px; background: var(--bg-tertiary); color: var(--text-muted);
}
.input-currency input { border-radius: 0 8px 8px 0; }
.radio-group { display: flex; gap: 18px; flex-wrap: wrap; }
.radio-group label { display: flex; align-items: center; gap: 6px; font-size: 14px; }
.radio-group input { width: auto; min-height: auto; }
.calculator-result {
    background: var(--accent-light); border-radius: 10px;
    padding: 20px; margin: 18px 0; text-align: center;
}
.result-value { font-size: 36px; font-weight: 800; color: var(--primary); }
.result-label { color: var(--text-muted); font-size: 13px; }
.result-benchmark { margin-top: 10px; font-size: 14px; font-weight: 600; }
.result-row {
    display: flex; justify-content: space-between;
    padding: 6px 0; font-size: 14px; text-align: left;
}
.result-row.result-total {
    border-top: 1px solid var(--border); margin-top: 6px;
    padding-top: 12px; font-size: 16px;
}
.calculator-related { margin-top: 16px; text-align: center; font-size: 13px; }
.calculator-related a { color: var(--primary); }

/* ----- subject line generator tool ----- */
.tool-page { padding: 28px 0; }
.tool-container { max-width: 720px; margin: 0 auto; }
.tool-header { text-align: center; margin-bottom: 24px; }
.tool-header h1 { font-size: 28px; margin-bottom: 8px; }
.tool-header p { color: var(--text-muted); }
.tool-box {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 12px; padding: 24px;
}
.form-row { display: flex; gap: 16px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 200px; }
.tone-selector { display: flex; gap: 10px; flex-wrap: wrap; }
.tone-option {
    flex: 1; min-width: 130px; border: 1px solid var(--border);
    border-radius: 10px; padding: 12px; cursor: pointer; text-align: center;
}
.tone-option input { width: auto; min-height: auto; }
.tone-option span { display: block; font-weight: 600; margin: 4px 0 2px; }
.tone-option small { color: var(--text-muted); }
.tone-option:has(input:checked) {
    border-color: var(--primary); background: var(--accent-light);
}
.btn-lg { padding: 12px 22px; font-size: 16px; }
.subjects-result { margin-top: 22px; }
.subjects-list { display: flex; flex-direction: column; gap: 8px; margin: 12px 0; }
.subject-item {
    display: flex; align-items: center; gap: 12px;
    background: var(--bg-tertiary); border: 1px solid var(--border);
    border-radius: 8px; padding: 10px 14px;
}
.subject-text { flex: 1; font-size: 14px; }

/* ----- 2FA pages ----- */
.tfa-enabled-status { margin: 16px 0; }
.tfa-setup-steps { margin: 18px 0; }
.setup-step {
    display: flex; gap: 14px; padding: 14px 0;
    border-bottom: 1px solid var(--border);
}
.setup-step:last-child { border-bottom: none; }
.step-num {
    flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%;
    background: var(--primary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 14px;
}
.input-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.input-row input { width: auto; flex: 1; min-width: 160px; }
.btn-danger-outline {
    background: var(--bg-card); border: 1px solid var(--danger); color: var(--danger);
}
.backup-codes-box {
    background: var(--accent-light); border-radius: 10px;
    padding: 20px; margin-top: 20px;
}
.backup-codes-grid {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 8px; margin: 14px 0;
}
.backup-code {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 6px; padding: 8px; text-align: center;
    font-family: monospace; font-size: 15px; letter-spacing: 2px;
}
.auth-icon { font-size: 48px; text-align: center; }
.btn-link {
    background: none; border: none; cursor: pointer;
    text-decoration: underline; font-size: 14px;
}

/* ======================================================
   Trial lifecycle — banners, extension page, billing plans
   ====================================================== */

/* ===== 试用状态横幅 ===== */
.trial-banner {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px 16px;
    padding: 10px 20px;
    font-size: 14px;
    line-height: 1.4;
    border-bottom: 1px solid var(--border);
}
.trial-banner > span { flex: 1 1 280px; }
.trial-banner strong { font-weight: 700; }

.trial-banner-warning {
    background: #FEF3C7;
    color: #92400E;
}
[data-theme="dark"] .trial-banner-warning {
    background: #422006;
    color: #FCD34D;
}
.trial-banner-danger {
    background: #FEE2E2;
    color: #991B1B;
}
[data-theme="dark"] .trial-banner-danger {
    background: #450A0A;
    color: #FCA5A5;
}
.trial-banner-info {
    background: var(--accent-light);
    color: var(--primary-dark);
}
[data-theme="dark"] .trial-banner-info {
    color: #C7D2FE;
}
.trial-banner-sticky {
    position: sticky;
    top: 0;
    z-index: 50;
}

.trial-banner-btn {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 8px;
    background: var(--primary);
    color: #fff;
    font-weight: 700;
    font-size: 13px;
    text-decoration: none;
    white-space: nowrap;
}
.trial-banner-btn:hover { background: var(--primary-dark); text-decoration: none; }

.trial-banner-link {
    font-size: 13px;
    font-weight: 600;
    color: inherit;
    text-decoration: underline;
    white-space: nowrap;
}
.trial-banner-link:hover { opacity: .8; }

.trial-banner-close {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    color: inherit;
    opacity: .6;
    padding: 4px;
}
.trial-banner-close:hover { opacity: 1; }

/* ===== 试用延期页面 ===== */
.trial-extend-page {
    padding: 40px 16px;
    display: flex;
    justify-content: center;
}
.trial-extend-container {
    width: 100%;
    max-width: 540px;
}
.extend-form,
.extend-used,
.extend-not-eligible,
.extend-success {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: 36px 32px;
}
.trial-extend-container h1 {
    font-size: 24px;
    text-align: center;
    margin-bottom: 10px;
    color: var(--text);
}
.trial-extend-container > div > p {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.extend-reasons {
    margin: 8px 0 24px;
}
.extend-reasons > p {
    text-align: left;
    color: var(--text);
    margin-bottom: 12px;
}
.extend-reason-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    margin-bottom: 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    transition: border-color .15s, background .15s;
}
.extend-reason-item:hover {
    border-color: var(--primary);
}
.extend-reason-item input[type="radio"] {
    margin-top: 3px;
    accent-color: var(--primary);
    flex-shrink: 0;
}
.extend-reason-item:has(input:checked) {
    border-color: var(--primary);
    background: var(--accent-light);
}
.extend-reason-item span {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.extend-reason-item strong {
    font-size: 14px;
    color: var(--text);
}
.extend-reason-item small {
    font-size: 13px;
    color: var(--text-muted);
}

.extend-response-card {
    margin-top: 20px;
    padding: 18px 20px;
    background: var(--accent-light);
    border-radius: 12px;
    text-align: center;
}
.extend-response-card strong {
    display: block;
    font-size: 15px;
    color: var(--primary-dark);
    margin-bottom: 6px;
}
[data-theme="dark"] .extend-response-card strong { color: #C7D2FE; }
.extend-response-card p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

/* ===== 到期提示（billing 页面）===== */
.expired-notice {
    background: var(--accent-light);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px 28px;
    margin-bottom: 24px;
}
.expired-notice h2 {
    color: var(--text);
    margin-bottom: 8px;
}

/* ===== 计划选择器 ===== */
.billing-cycle-toggle {
    display: inline-flex;
    gap: 4px;
    padding: 4px;
    margin: 16px 0 24px;
    background: var(--bg-tertiary);
    border-radius: 10px;
}
.billing-cycle-btn {
    border: none;
    cursor: pointer;
    background: transparent;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 14px;
    padding: 8px 18px;
    border-radius: 8px;
    transition: background .15s, color .15s;
}
.billing-cycle-btn.active {
    background: var(--bg-card);
    color: var(--text);
    box-shadow: var(--shadow);
}
.billing-cycle-save {
    display: inline-block;
    margin-left: 6px;
    padding: 1px 7px;
    border-radius: 8px;
    background: #10B981;
    color: #fff;
    font-size: 11px;
    font-weight: 700;
}

.billing-plan-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
@media (max-width: 720px) {
    .billing-plan-selector { grid-template-columns: 1fr; }
}

.plan-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
}
.plan-card-highlight {
    border-color: var(--primary);
    box-shadow: 0 4px 16px rgba(79,70,229,0.18);
}
.plan-card-badge {
    position: absolute;
    top: -11px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 10px;
    white-space: nowrap;
}
.plan-card-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}
.plan-card-price {
    display: flex;
    align-items: baseline;
    gap: 4px;
}
.plan-card-amount {
    font-size: 32px;
    font-weight: 800;
    color: var(--text);
}
.plan-card-period {
    font-size: 14px;
    color: var(--text-muted);
}
.plan-card-cycle-note {
    font-size: 12px;
    margin-bottom: 16px;
}
.plan-card-features {
    list-style: none;
    margin: 0 0 20px;
    padding: 0;
    flex: 1;
}
.plan-card-features li {
    font-size: 13px;
    color: var(--text);
    padding: 5px 0;
    border-bottom: 1px solid var(--border);
}
.plan-card-features li:last-child { border-bottom: none; }
.plan-card-extra { color: var(--primary); font-weight: 600; }

.plan-card-btn { margin-top: auto; }

/* ======================================================
   反馈系统 — Feedback system
   ====================================================== */

/* ===== 固定反馈按钮（右下角 widget）===== */
.feedback-widget {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 500;
}
@media (max-width: 768px) {
    /* 手机端：底部导航栏上方 */
    .feedback-widget { bottom: 80px; }
}

.feedback-trigger {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 8px 16px;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    font-size: 14px;
    color: var(--text);
    transition: all 0.2s;
}
.feedback-trigger:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 4px 12px rgba(79,70,229,0.15);
}
.feedback-trigger-icon { font-size: 16px; }

@media (max-width: 768px) {
    /* 手机端只显示图标 */
    .feedback-trigger-label { display: none; }
    .feedback-trigger { padding: 10px; border-radius: 50%; }
}

.feedback-panel {
    position: absolute;
    bottom: 48px;
    right: 0;
    width: 300px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    overflow: hidden;
}
@media (max-width: 768px) {
    .feedback-panel {
        position: fixed;
        bottom: 90px;
        right: 12px;
        left: 12px;
        width: auto;
    }
}

.feedback-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 14px;
    color: var(--text);
}
.feedback-panel-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 18px;
    line-height: 1;
}

.feedback-type-selector {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.feedback-type-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 14px;
    cursor: pointer;
    text-align: left;
    font-size: 14px;
    color: var(--text);
    transition: all 0.15s;
}
.feedback-type-btn:hover {
    background: var(--accent-light);
    border-color: var(--primary);
    color: var(--primary);
}

.feedback-content { padding: 12px; }
.feedback-back {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 8px;
    padding: 0;
}
.feedback-type-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}
.feedback-content textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px;
    font-size: 13px;
    resize: none;
    font-family: inherit;
    background: var(--input-bg);
    color: var(--text);
    transition: border-color 0.15s;
}
.feedback-content textarea:focus {
    outline: none;
    border-color: var(--primary);
}
.feedback-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 6px 0 10px;
    font-size: 12px;
}
.feedback-meta select {
    font-size: 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 2px 6px;
    background: var(--input-bg);
    color: var(--text);
}
.feedback-success .feedback-success-inner {
    text-align: center;
    padding: 16px;
    color: var(--text);
}
.feedback-success-emoji { font-size: 32px; margin-bottom: 8px; }
.feedback-success p { margin: 4px 0; }

/* ===== 功能请求页面 /feedback/ ===== */
.feedback-page { padding: 8px 0 32px; }
.feedback-page-container {
    max-width: 720px;
    margin: 0 auto;
}
.feedback-page-header { margin-bottom: 20px; }
.feedback-page-header h1 { font-size: 26px; margin-bottom: 6px; }
.feedback-page-header p { color: var(--text-muted); font-size: 15px; }

.feedback-submit-inline {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}
.feedback-submit-input-wrap {
    display: flex;
    gap: 8px;
}
.feedback-submit-input-wrap input {
    flex: 1;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 14px;
    font-family: inherit;
    background: var(--input-bg);
    color: var(--text);
}
.feedback-submit-input-wrap input:focus {
    outline: none;
    border-color: var(--primary);
}
.feedback-submit-input-wrap .btn { flex-shrink: 0; }
.feedback-inline-success {
    margin-top: 10px;
    color: var(--success);
    font-size: 14px;
    font-weight: 600;
}

.feedback-features-list { margin-bottom: 28px; }
.feedback-features-list h2,
.feedback-shipped h2 {
    font-size: 18px;
    margin-bottom: 12px;
}
.feedback-empty {
    padding: 28px;
    text-align: center;
    color: var(--text-muted);
    background: var(--bg-card);
    border: 1px dashed var(--border);
    border-radius: var(--radius);
}

.feedback-feature-item {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
    margin-bottom: 10px;
    box-shadow: var(--shadow);
}
.feedback-feature-item.feedback-feature-planned {
    border-color: var(--primary);
    background: var(--accent-light);
}
.feedback-feature-vote { flex-shrink: 0; }
.vote-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    width: 52px;
    padding: 8px 0;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.15s;
}
.vote-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}
.vote-btn.voted {
    background: var(--accent-light);
    border-color: var(--primary);
    color: var(--primary);
}
.vote-arrow { font-size: 11px; line-height: 1; }
.vote-count { font-size: 15px; font-weight: 700; line-height: 1; }

.feedback-feature-content { flex: 1; min-width: 0; }
.feedback-feature-text {
    font-size: 14px;
    color: var(--text);
    line-height: 1.45;
}
.feedback-feature-meta {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 8px;
}
.feedback-category-tag {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 12px;
    background: var(--bg-tertiary);
    color: var(--text-muted);
    text-transform: capitalize;
}
.feedback-status-tag {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 600;
}
.feedback-status-planned {
    background: var(--accent-light);
    color: var(--primary);
}
.feedback-status-reviewing {
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

.feedback-shipped {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow);
}
.feedback-shipped p { font-size: 13px; margin-bottom: 10px; }
.feedback-shipped-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    font-size: 14px;
    color: var(--text);
}
.shipped-check {
    color: var(--success);
    font-weight: 700;
    flex-shrink: 0;
}
.shipped-votes { font-size: 12px; flex-shrink: 0; }

/* ===== Dashboard 第一笔收款嵌入式星评反馈 ===== */
.impact-feedback {
    text-align: center;
}
.impact-feedback-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 10px;
}
.impact-stars {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-bottom: 6px;
}
.star-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 28px;
    line-height: 1;
    padding: 2px;
    opacity: 0.3;
    transition: opacity 0.12s;
}
.star-btn:hover { opacity: 1; }
#impact-feedback-comment {
    max-width: 420px;
    margin: 10px auto 0;
}
#impact-feedback-comment input {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 9px 12px;
    font-size: 14px;
    font-family: inherit;
    background: var(--input-bg);
    color: var(--text);
}
#impact-feedback-comment input:focus {
    outline: none;
    border-color: var(--primary);
}
.impact-feedback-actions {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 8px;
}

/* ===================================================================
   API Keys (Settings → API Keys) + API Reference docs page
   =================================================================== */

/* ----- shared helpers ----- */
.text-link {
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
}
.text-link:hover { text-decoration: underline; }
.badge-muted { background: var(--bg-tertiary); color: var(--text-muted); }

/* ----- settings section header ----- */
.settings-section-header { margin-bottom: 18px; }
.settings-section-header h2 { margin: 0 0 6px; font-size: 18px; }
.settings-section-header p {
    color: var(--text-muted); font-size: 14px; margin: 0 0 8px; line-height: 1.5;
}

/* ----- API keys list ----- */
.api-keys-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }
.api-key-row {
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 10px; padding: 14px 16px;
}
.api-key-row.api-key-revoked { opacity: .6; }
.api-key-info { min-width: 0; flex: 1; }
.api-key-name { font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.api-key-preview { margin-bottom: 4px; }
.api-key-preview code {
    font-family: monospace; font-size: 13px;
    background: var(--bg-tertiary); border-radius: 4px; padding: 2px 7px;
    color: var(--text);
}
.api-key-meta { font-size: 12px; }
.api-key-actions { flex-shrink: 0; }
.api-keys-empty {
    text-align: center; padding: 28px 16px; margin-bottom: 20px;
    background: var(--bg-tertiary); border-radius: 10px;
}
.api-keys-empty p { margin: 0; }
.api-key-generate {
    border-top: 1px solid var(--border); padding-top: 18px; margin-top: 4px;
}
.api-key-generate .form-row { align-items: flex-end; }

/* ----- new key modal extras ----- */
.new-key-warning {
    background: #FEF3C7; color: #92400E; border-radius: 8px;
    padding: 10px 12px; font-size: 13px; line-height: 1.5; margin-bottom: 14px;
}
.new-key-display {
    display: flex; align-items: center; gap: 10px;
    background: var(--bg-tertiary); border: 1px solid var(--border);
    border-radius: 8px; padding: 10px 12px; margin-bottom: 16px;
}
.new-key-display code {
    flex: 1; min-width: 0; font-family: monospace; font-size: 13px;
    word-break: break-all; color: var(--text);
}
.new-key-tips { font-size: 13px; color: var(--text-muted); }
.new-key-tips p { margin: 0 0 6px; }
.new-key-tips ul { margin: 0; padding-left: 20px; }
.new-key-tips li { margin-bottom: 3px; }

/* ----- API docs page (task 6) ----- */
.api-docs-layout {
    display: grid; grid-template-columns: 240px 1fr; gap: 40px;
    max-width: 1100px; margin: 0 auto; padding: 24px 0 48px;
}
.api-docs-nav { position: sticky; top: 24px; align-self: start; }
.api-docs-nav-logo { margin-bottom: 18px; }
.api-docs-nav-logo a { font-size: 18px; font-weight: 700; color: var(--text); }
.api-docs-nav-logo span {
    display: block; font-size: 12px; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: .05em; margin-top: 2px;
}
.api-docs-nav nav { display: flex; flex-direction: column; gap: 2px; }
.api-docs-nav nav a {
    color: var(--text-muted); text-decoration: none; font-size: 14px;
    padding: 6px 10px; border-radius: 6px;
}
.api-docs-nav nav a:hover { background: var(--bg-tertiary); color: var(--text); }
.api-nav-section {
    font-size: 11px; text-transform: uppercase; letter-spacing: .05em;
    color: var(--text-muted); font-weight: 700;
    margin: 16px 0 4px; padding: 0 10px;
}
.api-nav-section:first-child { margin-top: 0; }

.api-docs-content { min-width: 0; }
.api-docs-content h1 { font-size: 28px; margin-bottom: 8px; }
.api-docs-content > p { color: var(--text-muted); line-height: 1.6; }
.api-docs-content section { margin: 36px 0; scroll-margin-top: 24px; }
.api-docs-content h2 {
    font-size: 20px; margin-bottom: 12px;
    padding-bottom: 8px; border-bottom: 1px solid var(--border);
}
.api-docs-content h4 {
    font-size: 13px; text-transform: uppercase; letter-spacing: .04em;
    color: var(--text-muted); margin: 16px 0 8px;
}
.api-docs-content ul, .api-docs-content ol {
    padding-left: 22px; line-height: 1.7; color: var(--text);
}
.api-docs-content section > p { line-height: 1.6; }

.api-info-box {
    background: var(--accent-light); border-radius: 8px;
    padding: 12px 14px; margin: 16px 0; font-size: 14px;
}
.api-info-box code {
    font-family: monospace; margin-left: 8px;
    background: var(--bg-card); border-radius: 4px; padding: 2px 7px;
}
.api-warning {
    background: #FEF3C7; color: #92400E; border-radius: 8px;
    padding: 10px 14px; font-size: 13px; line-height: 1.5; margin: 14px 0;
}

/* code blocks inside docs (extends existing .code-block) */
.code-block-header {
    display: flex; align-items: center; justify-content: space-between;
    background: #111827; color: #9CA3AF;
    font-size: 12px; padding: 7px 12px;
    border-radius: 8px 8px 0 0; margin: 12px 0 0;
}
.code-block-header + pre,
.code-block-header ~ pre { margin-top: 0; border-radius: 0 0 8px 8px; }
.code-copy-btn {
    background: transparent; border: 1px solid #374151; color: #D1D5DB;
    font-size: 11px; padding: 2px 9px; border-radius: 4px; cursor: pointer;
}
.code-copy-btn:hover { background: #1F2937; color: #fff; }
.api-docs-content pre {
    background: #1F2937; color: #E5E7EB; border-radius: 8px;
    padding: 14px 16px; overflow-x: auto; font-size: 13px;
    margin: 12px 0 16px; line-height: 1.55;
}
.api-docs-content pre code { font-family: monospace; color: inherit; }

/* API reference tables */
.api-table {
    width: 100%; border-collapse: collapse; font-size: 13px; margin: 8px 0 16px;
}
.api-table th, .api-table td {
    text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border);
    vertical-align: top;
}
.api-table th { color: var(--text-muted); font-weight: 600; }
.api-table code {
    font-family: monospace; background: var(--bg-tertiary);
    border-radius: 4px; padding: 1px 6px;
}

/* endpoint cards */
.api-endpoint {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 10px; padding: 18px 20px; margin-bottom: 16px;
}
.api-endpoint-header {
    display: flex; align-items: center; gap: 10px; margin-bottom: 8px;
}
.api-endpoint-header code {
    font-family: monospace; font-size: 14px; font-weight: 600; color: var(--text);
}
.api-method {
    font-size: 11px; font-weight: 700; padding: 3px 9px; border-radius: 4px;
    text-transform: uppercase; letter-spacing: .03em;
}
.api-method-get  { background: #DBEAFE; color: #1D4ED8; }
.api-method-post { background: #DCFCE7; color: #15803D; }

@media (max-width: 860px) {
    .api-docs-layout { grid-template-columns: 1fr; gap: 20px; }
    .api-docs-nav { position: static; }
    .api-key-row { flex-direction: column; align-items: flex-start; }
}

/* ---- GDPR data request row (settings) + footer legal links ---- */
.settings-danger-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.settings-danger-item h4 {
    margin: 0 0 4px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
}
.settings-danger-item p {
    margin: 0;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.6;
}
.settings-danger-item .btn {
    flex-shrink: 0;
}

.footer-legal-links {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 16px;
}
.footer-legal-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 13px;
}
.footer-legal-links a:hover {
    color: var(--primary);
}
@media (max-width: 600px) {
    .settings-danger-item { flex-direction: column; align-items: flex-start; }
}

/* ===== Register trust elements (UX v2) ===== */
.register-trust {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}
.register-trust-items {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 6px;
}
.register-testimonial {
    margin-top: 20px;
    padding: 16px;
    background: var(--bg-soft, #F9FAFB);
    border-radius: 8px;
    text-align: center;
}
.register-testimonial-text {
    font-size: 14px;
    color: var(--text);
    font-style: italic;
    margin-bottom: 6px;
}
.register-testimonial-author {
    font-size: 12px;
    color: var(--text-muted);
}

/* ===== Stripe Connect nudge card (UX v2) ===== */
.stripe-nudge-card {
    display: flex;
    align-items: center;
    gap: 16px;
    background: linear-gradient(135deg, #EEF2FF, #F0FDF4);
    border: 1px solid #C7D2FE;
    border-radius: 12px;
    padding: 20px 24px;
    margin-bottom: 20px;
}
.stripe-nudge-icon { font-size: 32px; flex-shrink: 0; }
.stripe-nudge-content { flex: 1; }
.stripe-nudge-content h3 { font-size: 16px; font-weight: 700; margin-bottom: 4px; color: #1F2937; }
.stripe-nudge-content p  { color: #4B5563; font-size: 14px; margin-bottom: 8px; }
.stripe-nudge-stat {
    font-size: 13px; color: #065F46;
    background: #D1FAE5; padding: 4px 10px;
    border-radius: 20px; display: inline-block;
}
.stripe-nudge-actions {
    display: flex; flex-direction: column;
    gap: 8px; flex-shrink: 0; align-items: flex-end;
}
.stripe-nudge-card .btn-link {
    background: none; border: none; cursor: pointer;
    font-size: 13px; padding: 0; text-decoration: underline;
}
@media (max-width: 768px) {
    .stripe-nudge-card { flex-direction: column; align-items: flex-start; }
    .stripe-nudge-actions { align-items: flex-start; }
}

/* ===== In-app Tooltips (UX v2) ===== */
.duefy-tooltip {
    background: #1F2937;
    color: #fff;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
    animation: tooltip-in 0.2s ease;
}
@keyframes tooltip-in {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}
.duefy-tooltip-content { padding: 14px 16px; }
.duefy-tooltip-content p {
    font-size: 13px;
    line-height: 1.5;
    margin-bottom: 10px;
    color: #E5E7EB;
}
.duefy-tooltip-content em  { color: #A5B4FC; font-style: normal; }
.duefy-tooltip-content strong { color: #fff; }
.duefy-tooltip-close {
    background: #4F46E5;
    color: #fff;
    border: none;
    border-radius: 6px;
    padding: 6px 12px;
    font-size: 12px;
    cursor: pointer;
    font-weight: 600;
}
.duefy-tooltip-arrow {
    width: 10px; height: 10px;
    background: #1F2937;
    position: absolute;
    left: 50%; transform: translateX(-50%) rotate(45deg);
}
.duefy-tooltip-bottom .duefy-tooltip-arrow { top: -5px; }
.duefy-tooltip-top    .duefy-tooltip-arrow { bottom: -5px; }

/* ===== Sample data (UX v2) ===== */
.empty-sample-data {
    margin-top: 24px;
    text-align: center;
}
.empty-sample-data p {
    margin-bottom: 8px;
    font-size: 14px;
}
.sample-data-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    background: #FFF7ED;
    border: 1px solid #FED7AA;
    color: #9A3412;
    border-radius: 10px;
    padding: 12px 18px;
    margin-bottom: 20px;
    font-size: 14px;
}
.sample-data-banner strong { font-weight: 700; }
.sample-data-banner .btn { flex-shrink: 0; }

/* ===== 付费订阅状态横幅 ===== */
.sub-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    font-size: 14px;
    flex-wrap: wrap;
}
.sub-banner > span { flex: 1 1 280px; }
.sub-banner strong { font-weight: 700; }
.sub-banner-danger {
    background: #FEE2E2;
    color: #991B1B;
}
[data-theme="dark"] .sub-banner-danger {
    background: #3F1D1D;
    color: #FCA5A5;
}
.sub-banner-warning {
    background: #FEF3C7;
    color: #92400E;
}
[data-theme="dark"] .sub-banner-warning {
    background: #3A2E12;
    color: #FCD34D;
}
.sub-banner-info {
    background: #EEF2FF;
    color: #3730A3;
}
[data-theme="dark"] .sub-banner-info {
    background: #1E2240;
    color: #A5B4FC;
}
.sub-banner-sticky {
    position: sticky;
    top: 0;
    z-index: 200;
}
.sub-banner-btn {
    background: var(--primary);
    color: #fff !important;
    padding: 6px 14px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}
.sub-banner-btn:hover {
    background: var(--primary-dark);
    text-decoration: none;
}
.sub-banner-btn-outline {
    background: transparent;
    color: var(--primary) !important;
    border: 1px solid var(--primary);
}
.sub-banner-btn-outline:hover {
    background: var(--primary);
    color: #fff !important;
}
.sub-banner-close {
    background: none;
    border: none;
    cursor: pointer;
    opacity: 0.5;
    font-size: 16px;
    color: inherit;
    line-height: 1;
}
.sub-banner-close:hover { opacity: 1; }

/* ===== Billing 当前计划详情 ===== */
.billing-current-plan {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 16px;
    background: var(--bg-card);
}
.billing-plan-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}
.billing-plan-header h3 {
    margin: 0;
    font-size: 16px;
}
.plan-badge {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    background: #EEF2FF;
    color: var(--primary);
}
[data-theme="dark"] .plan-badge {
    background: #2A2F4A;
}
.billing-plan-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.billing-detail-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    padding: 9px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.billing-detail-row:last-child { border-bottom: none; }
.billing-detail-row > span { color: var(--text-muted); }
.billing-detail-row strong {
    font-weight: 600;
    text-align: right;
}
.billing-plan-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 16px;
}
.text-danger { color: var(--danger) !important; }

/* ===== Auth 页面（登录/注册重设计）===== */
.auth-page {
    width: 100%;
    max-width: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

/* Logo（替代"Back to Homepage"按钮）*/
.auth-logo-wrap { width: 100%; }
.auth-logo {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 20px;
    font-weight: 800;
    color: #4F46E5;
    text-decoration: none;
}
.auth-logo span { color: var(--text); }
.auth-logo:hover { opacity: 0.85; }

.auth-subtitle {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 16px;
    text-align: center;
}

/* 账号切换链接（放最上方）*/
.auth-switch {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
    text-align: center;
}
.auth-switch a {
    color: #4F46E5;
    font-weight: 600;
    text-decoration: none;
}
.auth-switch a:hover { text-decoration: underline; }

/* 表单元素 */
.form-label-optional {
    font-size: 11px;
    color: #9CA3AF;
    font-weight: 400;
    margin-left: 4px;
}
.form-label-link {
    float: right;
    font-size: 13px;
    color: #4F46E5;
    font-weight: 400;
    text-decoration: none;
}
.form-label-link:hover { text-decoration: underline; }

.required { color: #DC2626; }

.form-group-inline { margin-bottom: 14px; }
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
    cursor: pointer;
}

/* 密码输入框 */
.input-password-wrap {
    position: relative;
    display: flex;
    align-items: center;
}
.input-password-wrap input {
    flex: 1;
    padding-right: 44px;
}
.btn-toggle-password {
    position: absolute;
    right: 10px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    color: #9CA3AF;
    padding: 4px;
    line-height: 1;
}

/* 密码强度条 */
.password-strength {
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    margin-top: 6px;
    overflow: hidden;
}
.password-strength-bar {
    height: 100%;
    width: 0;
    border-radius: 2px;
    transition: width 0.3s, background 0.3s;
}
.password-strength-label {
    font-size: 12px;
    margin-top: 3px;
    font-weight: 500;
}

/* 表单错误 */
.form-error {
    background: #FEF2F2;
    color: #DC2626;
    border: 1px solid #FECACA;
    border-radius: 6px;
    padding: 10px 14px;
    font-size: 13px;
    margin-top: 12px;
}

/* 信任元素 */
.register-trust {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* 用户评价 */
.register-testimonial {
    margin-top: 12px;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    text-align: center;
}
.register-testimonial p {
    font-size: 13px;
    color: var(--text);
    font-style: italic;
    margin-bottom: 4px;
}
.register-testimonial span {
    font-size: 12px;
    color: #9CA3AF;
}

/* 底部备注 */
.auth-footer-note {
    font-size: 12px;
    color: #9CA3AF;
    text-align: center;
    line-height: 1.5;
}
.auth-footer-note a { color: #6B7280; }

/* ===== 邮箱验证提示条 ===== */
.verify-banner {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #FEF3C7;
    border-bottom: 1px solid #FDE68A;
    padding: 10px 20px;
    font-size: 14px;
    color: #92400E;
    flex-wrap: wrap;
}
.verify-banner-icon { font-size: 16px; flex-shrink: 0; }
.verify-banner span { flex: 1; min-width: 200px; }
.verify-banner-link {
    background: none;
    border: 1px solid #92400E;
    border-radius: 5px;
    padding: 3px 10px;
    font-size: 13px;
    color: #92400E;
    cursor: pointer;
    font-weight: 600;
    white-space: nowrap;
}
.verify-banner-link:disabled { opacity: 0.5; cursor: not-allowed; }
.verify-banner-close {
    background: none;
    border: none;
    cursor: pointer;
    color: #92400E;
    opacity: 0.6;
    font-size: 16px;
    flex-shrink: 0;
}
.verify-banner-close:hover { opacity: 1; }

/* Auth 重设计：Google 按钮占满整行 */
.btn-google { width: 100%; }