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

:root {
    color-scheme: light;
    --bg: #f8fafc;
    --bg-elevated: #f1f5f9;
    --panel: #ffffff;
    --surface: #f8fafc;
    --surface-2: #f1f5f9;
    --input-bg: #ffffff;
    --preview-bg: #f1f5f9;
    --text: #1e293b;
    --muted: #64748b;
    --border: #e2e8f0;
    --primary: #b05a5a;
    --primary-dark: #944848;
    --primary-light: #c87878;
    --primary-rgb: 176, 90, 90;
    --primary-deep-rgb: 148, 74, 74;
    --primary-gradient: linear-gradient(135deg, #b86868 0%, #a05050 100%);
    --primary-gradient-hover: linear-gradient(135deg, #944848 0%, #843f3f 100%);
    --primary-soft: rgba(176, 90, 90, 0.07);
    --primary-border: rgba(176, 90, 90, 0.2);
    --primary-muted: rgba(176, 90, 90, 0.12);
    --success: #059669;
    --success-bg: #ecfdf5;
    --success-text: #047857;
    --danger: #dc2626;
    --danger-bg: #fef2f2;
    --danger-text: #b91c1c;
    --warning-bg: #fffbeb;
    --warning-text: #b45309;
    --on-primary: #ffffff;
    --radius: 12px;
    --radius-pill: 999px;
    --radius-btn: 999px;
    --shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 8px 24px rgba(15, 23, 42, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    overflow: hidden;
}

.app-shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    height: 100vh;
    min-width: 0;
}

.app-header {
    flex-shrink: 0;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    z-index: 40;
}

.app-header-inner {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 0 24px;
    height: 96px;
    min-width: 0;
}

.app-header-brand {
    flex-shrink: 0;
}

.brand-lockup {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: inherit;
    min-width: 0;
}

.brand-lockup:hover .brand-name {
    color: var(--primary-dark);
}

.brand-logo {
    flex-shrink: 0;
    display: block;
    border-radius: 8px;
    object-fit: contain;
}

.brand-name {
    font-weight: 700;
    font-size: 1.08rem;
    color: var(--text);
    letter-spacing: 0.01em;
    white-space: nowrap;
}

.brand-lockup-header .brand-name {
    font-size: 1.12rem;
    background: linear-gradient(135deg, #1e293b 0%, #1e293b 15%, #d85050 55%, #c84848 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.brand-lockup-header:hover .brand-name {
    background: linear-gradient(135deg, #0f172a 0%, #0f172a 15%, #c84848 55%, #b83838 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.brand-lockup-nav {
    padding: 2px 0 10px;
}

.brand-lockup-nav .brand-name {
    font-size: 1rem;
}

.app-header-announce {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    border-radius: 999px;
    background: var(--primary-soft);
    border: 1px solid var(--primary-border);
}

.app-announce-icon {
    display: inline-flex;
    color: var(--primary);
    flex-shrink: 0;
}

.app-announce-icon svg {
    width: 20px;
    height: 20px;
}

.app-announce-badge {
    flex-shrink: 0;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--primary-dark);
    background: var(--panel);
    border: 1px solid var(--primary-border);
    border-radius: 999px;
    padding: 4px 10px;
}

.app-announce-track {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    mask-image: linear-gradient(90deg, transparent, #000 12px, #000 calc(100% - 12px), transparent);
}

.app-announce-marquee {
    display: flex;
    align-items: center;
    width: max-content;
    will-change: transform;
}

.app-announce-segment {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
    white-space: nowrap;
    padding-right: 4rem;
}

.app-announce-marquee.is-scroll {
    animation: app-announce-scroll var(--marquee-duration, 24s) linear infinite;
}

.app-announce-marquee.is-scroll:hover {
    animation-play-state: paused;
}

.app-announce-text {
    font-size: 0.92rem;
    color: var(--primary-dark);
}

@keyframes app-announce-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.app-header-actions {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.app-header-btn {
    /* 联系客服：保持方角圆角，不用全圆角胶囊 */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--panel);
    color: var(--muted);
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
    flex-shrink: 0;
}

.app-header-btn svg {
    width: 22px;
    height: 22px;
}

.app-header-btn:hover {
    border-color: var(--primary-border);
    color: var(--primary-dark);
    background: var(--primary-soft);
}

.app-header-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 52px;
    padding: 0 18px;
    border: 1px solid var(--primary-border);
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary-dark);
    font-size: 0.92rem;
    font-weight: 600;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}

.app-header-pill svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.app-header-pill:hover:not(:disabled) {
    border-color: var(--primary);
    background: var(--primary-muted);
    box-shadow: 0 1px 4px rgba(176, 90, 90, 0.12);
}

.app-header-pill:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    background: var(--surface-2);
    border-color: var(--border);
    color: var(--muted);
}

.app-header-points svg {
    color: #06b6d4;
    flex-shrink: 0;
}

.app-header-user-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    background: var(--surface-2);
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 700;
    overflow: hidden;
}

.app-header-user-avatar.has-user {
    background: var(--primary-gradient);
    color: var(--on-primary);
}

.app-header-user-avatar svg {
    display: block;
    width: 18px;
    height: 18px;
}

.app-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(15, 23, 42, 0.45);
}

.app-modal[hidden] {
    display: none !important;
}

.app-modal-card {
    width: min(420px, 100%);
    background: var(--panel);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    padding: 20px;
}

.app-modal-card-sm {
    width: min(380px, 100%);
}

.app-modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.app-modal-head h3 {
    font-size: 1.05rem;
    font-weight: 700;
}

.app-modal-close {
    border: none;
    background: transparent;
    color: var(--muted);
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
    padding: 0 4px;
}

.app-modal-close:hover {
    color: var(--text);
}

.app-modal-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.app-modal-tab {
    flex: 1;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--muted);
    border-radius: var(--radius-pill);
    padding: 8px 12px;
    font-size: 0.88rem;
    cursor: pointer;
}

.app-modal-tab.active {
    border-color: var(--primary-border);
    background: var(--primary-soft);
    color: var(--primary-dark);
    font-weight: 600;
}

.app-auth-form .field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 12px;
}

.app-auth-form .field span {
    font-size: 0.82rem;
    color: var(--muted);
}

.app-auth-form input {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.9rem;
    background: var(--input-bg);
    color: var(--text);
}

.app-auth-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(176, 90, 90, 0.14);
}

.app-auth-error {
    color: var(--danger);
    font-size: 0.82rem;
    margin-bottom: 10px;
}

.app-auth-hint {
    color: var(--primary-dark);
    font-size: 0.82rem;
    line-height: 1.5;
    margin-bottom: 10px;
    padding: 8px 10px;
    border-radius: 8px;
    background: var(--primary-soft);
    border: 1px solid var(--primary-border);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.app-support-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.app-support-qr-wrap {
    display: flex;
    justify-content: center;
    padding: 8px 0 4px;
}

.app-support-qr {
    width: 200px;
    height: 200px;
    object-fit: contain;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: #fff;
}

.app-support-row {
    display: grid;
    grid-template-columns: 72px 1fr auto;
    gap: 8px;
    align-items: center;
    font-size: 0.88rem;
}

.app-support-label {
    color: var(--muted);
}

.app-support-value {
    font-weight: 600;
    word-break: break-all;
}

.app-support-hint {
    font-size: 0.82rem;
    color: var(--muted);
    margin-top: 4px;
}

.app-account-menu {
    position: relative;
}

.app-account-menu-close {
    position: absolute;
    top: 14px;
    right: 14px;
}

.app-account-menu-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    padding-right: 28px;
}

.app-account-menu-avatar {
    width: 44px;
    height: 44px;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    color: var(--on-primary);
    font-weight: 700;
    font-size: 1rem;
}

.app-account-menu-name {
    font-weight: 700;
    font-size: 1rem;
}

.app-account-menu-email {
    font-size: 0.82rem;
    color: var(--muted);
}

.app-account-menu-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-radius: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    margin-bottom: 12px;
    font-size: 0.88rem;
}

.app-account-menu-meta strong {
    font-size: 0.86rem;
    color: var(--text);
    font-weight: 500;
}

.app-account-menu-points {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-radius: 10px;
    background: var(--primary-soft);
    border: 1px solid var(--primary-border);
    margin-bottom: 12px;
    font-size: 0.88rem;
}

.app-account-menu-points strong {
    font-size: 1.1rem;
    color: var(--primary-dark);
}

.app-account-ledger {
    margin-bottom: 12px;
}

.app-account-menu.is-ledger-only .app-account-ledger {
    margin-bottom: 0;
}

.app-account-menu.is-ledger-only .app-account-ledger-list {
    max-height: min(360px, 52vh);
}

.app-account-menu-actions {
    display: grid;
    gap: 12px;
    margin-bottom: 4px;
}

.app-account-ledger-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text);
}

.app-account-ledger-list {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--input-bg);
}

.app-account-ledger-list li {
    padding: 8px 10px;
    border-bottom: 1px solid var(--border);
    font-size: 0.75rem;
    line-height: 1.4;
}

.app-account-ledger-list li:last-child {
    border-bottom: none;
}

.app-account-ledger-item-note {
    color: var(--text);
    margin-bottom: 2px;
}

.app-account-ledger-item-meta {
    color: var(--muted);
    font-size: 0.68rem;
}

.app-account-ledger-delta.plus {
    color: #059669;
    font-weight: 600;
}

.app-account-ledger-delta.minus {
    color: var(--danger-text);
    font-weight: 600;
}

.app-account-ledger-empty {
    color: var(--muted);
    text-align: center;
}

.app-recharge-card {
    max-width: 420px;
}

.app-recharge-balance {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-radius: 10px;
    background: var(--primary-soft);
    border: 1px solid var(--primary-border);
    margin-bottom: 12px;
    font-size: 0.88rem;
}

.app-recharge-balance strong {
    font-size: 1.15rem;
    color: var(--primary-dark);
}

.app-recharge-hint {
    margin: 0 0 12px;
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.5;
}

.app-recharge-packages {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 12px;
}

.app-recharge-package {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 12px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--panel);
    cursor: pointer;
    text-align: left;
    transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}

.app-recharge-package:hover {
    border-color: var(--primary-border);
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.06);
}

.app-recharge-package.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-soft);
}

.app-recharge-package-top {
    display: flex;
    align-items: center;
    gap: 6px;
    width: 100%;
}

.app-recharge-package-title {
    font-weight: 700;
    font-size: 0.92rem;
}

.app-recharge-package-badge {
    font-size: 0.68rem;
    padding: 2px 6px;
    border-radius: 999px;
    background: var(--primary-soft);
    color: var(--primary-dark);
    border: 1px solid var(--primary-border);
}

.app-recharge-package-points {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.app-recharge-package-price {
    font-size: 0.82rem;
    color: var(--muted);
}

.app-recharge-error {
    margin: 0 0 10px;
    font-size: 0.82rem;
    color: #dc2626;
}

.app-recharge-actions {
    display: grid;
    gap: 12px;
}

.select option {
    background: var(--panel);
    color: var(--text);
}

.workspace {
    display: flex;
    flex: 1;
    min-height: 0;
    min-width: 0;
}

.nav-rail {
    width: 242px;
    background: var(--bg-elevated);
    border-right: 1px solid var(--border);
    padding: 16px 10px;
    flex-shrink: 0;
    overflow-y: auto;
}

.nav-brand {
    padding: 0 4px 12px;
}

.app-shell .nav-brand {
    display: none;
}

.nav-group-title {
    font-size: 0.7rem;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0 10px 8px;
}

.nav-group-tools {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}
.nav-group-space {
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

a.nav-item {
    text-decoration: none;
    display: flex;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    text-align: left;
    border: 1px solid transparent;
    background: transparent;
    padding: 10px 14px;
    border-radius: var(--radius-pill);
    font-size: 0.88rem;
    cursor: pointer;
    color: var(--text);
    margin-bottom: 4px;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.nav-item-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    color: var(--muted);
}

.nav-item-icon svg {
    display: block;
    width: 18px;
    height: 18px;
}

.nav-item:hover:not(.active):not(.disabled) {
    background: var(--surface-2);
}

.nav-item.active .nav-item-icon {
    color: var(--primary-dark);
}

.nav-item.active {
    background: var(--primary-soft);
    color: var(--primary-dark);
    font-weight: 600;
    border-color: var(--primary-border);
}
.nav-item.disabled { opacity: 0.45; cursor: not-allowed; }

.workspace-shell {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
}

.workspace-topbar {
    padding: 20px 28px 12px;
    border-bottom: 1px solid var(--border);
    background: var(--panel);
}

.workspace-topbar h1 { font-size: 1.35rem; font-weight: 700; }
.workspace-topbar p { display: none; }

.workspace-panels {
    display: flex;
    flex: 1;
    min-height: 0;
    overflow: hidden;
    gap: 16px;
    padding: 16px;
    background: var(--bg);
}

.config-panel {
    flex: 1 1 0;
    width: 50%;
    min-width: 0;
    min-height: 0;
    padding: 0;
    overflow: hidden;
    border-right: none;
    background: transparent;
    display: flex;
    flex-direction: column;
}

.config-panel-body {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-border) transparent;
}

.config-panel-body > .config-card:last-child {
    margin-bottom: 0;
}

.history-panel {
    flex: 1 1 0;
    width: 50%;
    min-width: 0;
    padding: 0;
    height: 100%;
    min-height: 0;
    background: transparent;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.side-panel-stack {
    display: flex;
    flex-direction: column;
    gap: 14px;
    flex: 1;
    height: 100%;
    min-height: 0;
    overflow: visible;
}

.side-panel-stack > .config-card {
    margin-bottom: 0;
}

.titles-card {
    flex: 0 0 auto;
    max-height: min(36vh, 340px);
    min-height: 0;
    margin-bottom: 0;
    overflow: visible;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 20;
}

.titles-card .card-head,
.titles-card .titles-toolbar,
.titles-card .hint-text,
.titles-card .tabs,
.titles-card .btn {
    flex-shrink: 0;
}

.titles-toolbar {
    display: flex;
    align-items: stretch;
    gap: 8px;
    margin-bottom: 6px;
    overflow: visible;
    position: relative;
    z-index: 30;
}

.platform-multi-select {
    flex: 1;
    min-width: 0;
    position: relative;
    z-index: 40;
}

.platform-multi-trigger {
    width: 100%;
    height: 100%;
    min-height: 36px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 0 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    background: var(--input-bg);
    font-size: 0.84rem;
    color: var(--text);
    cursor: pointer;
    text-align: left;
}

.platform-multi-trigger:hover {
    border-color: var(--primary-border);
}

.platform-multi-trigger[aria-expanded="true"] {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-soft);
}

.platform-multi-label {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.platform-multi-chevron {
    flex-shrink: 0;
    color: var(--muted);
    font-size: 0.75rem;
}

.platform-multi-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    z-index: 200;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    max-height: min(220px, 40vh);
    overflow-y: auto;
    padding: 6px;
}

.platform-multi-menu.is-fixed {
    position: fixed;
    right: auto;
}

.platform-multi-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 12px;
    border-radius: var(--radius-pill);
    cursor: pointer;
    font-size: 0.82rem;
    user-select: none;
}

.platform-multi-option:hover {
    background: var(--surface-2);
}

.platform-multi-option input {
    accent-color: var(--primary);
    flex-shrink: 0;
}

.titles-generate-btn {
    flex-shrink: 0;
    white-space: nowrap;
    min-height: 36px;
    padding-left: 14px;
    padding-right: 14px;
}

.titles-card .title-content {
    flex: 0 1 auto;
    min-height: 0;
    max-height: min(24vh, 220px);
    overflow-y: auto;
}

.titles-card .platform-pill-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 10px;
}

.history-card {
    flex: 1 1 0;
    min-height: 0;
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.history-scroll {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.history-card .history-list {
    flex: 0 1 auto;
    min-height: 0;
    overflow: visible;
}

.history-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    flex-shrink: 0;
}

.history-head h2 { font-size: 1rem; font-weight: 600; }

.config-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 14px;
    box-shadow: var(--shadow);
}

.config-card.compact { padding: 14px 16px; }

.card-head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.card-head.sub { margin-top: 14px; justify-content: space-between; }
.card-head h2, .card-head h3 { font-size: 0.92rem; font-weight: 600; flex: 1; min-width: 0; }

.field-grid { display: grid; gap: 10px; }
.field-grid.two { grid-template-columns: 1fr 1fr; margin-bottom: 14px; }
.field-grid.three { grid-template-columns: repeat(3, 1fr); margin-bottom: 14px; }

.field { display: flex; flex-direction: column; gap: 4px; }
.field > span { font-size: 0.75rem; color: var(--muted); font-weight: 500; }

.input, .select, .textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font: inherit;
    font-size: 0.88rem;
    background: var(--input-bg);
}

.textarea { min-height: 64px; resize: vertical; margin-top: 0; }
.input-readonly,
.input[readonly] {
    background: var(--surface);
    color: var(--text);
    cursor: default;
}
.config-card > .input { margin-bottom: 12px; }
.input:focus, .select:focus, .textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(176, 90, 90, 0.14);
}

.drop-zone {
    border: 1.5px dashed var(--border);
    border-radius: 10px;
    padding: 28px 16px;
    text-align: center;
    background: var(--surface);
    cursor: pointer;
    margin-bottom: 12px;
    transition: border-color 0.15s, background 0.15s;
}

/* A+ / 主图套图：参考图区紧凑，缩略图不必占满整行 */
.drop-zone:not(.studio-drop) {
    padding: 14px 12px;
}

.drop-zone:not(.studio-drop) .drop-hint {
    margin: 4px 0 10px;
}

.drop-zone:not(.studio-drop):has(.preview-grid:not(:empty)) {
    padding: 10px 12px;
    text-align: left;
}

.drop-zone:not(.studio-drop) .preview-area {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 0;
}

.drop-zone:not(.studio-drop) .preview-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    width: auto;
    max-width: 100%;
}

.drop-zone:not(.studio-drop) .preview-item {
    width: 64px;
    height: 64px;
    aspect-ratio: unset;
}

.drop-zone:not(.studio-drop) .preview-item.is-selected {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-soft);
}

.drop-zone:not(.studio-drop) .preview-area .btn,
.drop-zone:not(.studio-drop) .studio-ref-actions {
    flex-shrink: 0;
    margin: 0;
}

.studio-ref-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.drop-zone.drag-over, .drop-zone:hover { border-color: var(--primary); background: var(--primary-soft); }
.drop-title { font-weight: 600; font-size: 0.92rem; }
.drop-hint { color: var(--muted); font-size: 0.78rem; margin: 6px 0 12px; }

.preview-area { display: flex; flex-direction: column; align-items: stretch; gap: 10px; margin-bottom: 12px; }

.preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.preview-item {
    position: relative;
    aspect-ratio: 1;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: var(--input-bg);
}

.preview-item.is-previewable {
    cursor: zoom-in;
}

.preview-item.is-previewable .preview-remove {
    cursor: pointer;
}

.preview-item.is-previewable img {
    cursor: zoom-in;
    pointer-events: auto;
}

.preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.preview-remove {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 22px;
    height: 22px;
    border: none;
    border-radius: 999px;
    background: rgba(17, 24, 39, 0.72);
    color: #fff;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
}

.preset-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 4px; }

.preset-btn {
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--input-bg);
    font-size: 0.82rem;
    cursor: pointer;
    transition: all 0.15s;
}

.preset-btn.active {
    border-color: var(--primary);
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.preset-btn:hover:not(.active) {
    border-color: var(--primary-border);
    background: var(--surface-2);
    color: var(--text);
}

.module-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.module-card {
    position: relative;
    display: block;
    padding: 8px 28px 8px 10px;
    border: 1px solid var(--border);
    border-radius: 14px;
    cursor: pointer;
    background: var(--input-bg);
    transition: border-color 0.15s, background 0.15s;
}

.module-card:has(input:checked) {
    border-color: var(--primary);
    background: var(--primary-soft);
}

.module-card input {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 14px;
    height: 14px;
    margin: 0;
    accent-color: var(--primary);
}

.module-card-title {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.3;
    padding-right: 4px;
}

.module-card-desc {
    display: block;
    margin-top: 2px;
    font-size: 0.68rem;
    color: var(--muted);
    line-height: 1.35;
}

.module-card.module-recommended:has(input:checked) {
    border-color: var(--primary);
    background: var(--primary-soft);
}

.module-rec-badge {
    display: inline-block;
    margin-left: 4px;
    padding: 0 4px;
    font-size: 0.6rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--primary-dark);
    background: var(--primary-muted);
    border-radius: 4px;
    vertical-align: middle;
}

.module-select-count,
.module-select-hint {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--muted);
}

.info-tip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    margin-left: 2px;
    padding: 0;
    font-size: 0.62rem;
    font-weight: 700;
    font-style: italic;
    font-family: Georgia, "Times New Roman", serif;
    line-height: 1;
    color: var(--primary);
    border: 1px solid var(--primary-border);
    border-radius: 50%;
    background: var(--input-bg);
    cursor: pointer;
    vertical-align: middle;
}

.info-popover-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
    vertical-align: middle;
}

.module-type-head h2 {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    color: var(--text);
}

.workspace-topbar h1,
.card-head h2,
.history-head h2 {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.analysis-head h2 {
    flex: 1;
    min-width: 0;
}

.info-popover {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    z-index: 80;
    width: min(340px, calc(100vw - 48px));
    padding: 12px 14px;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    font-size: 0.78rem;
    font-weight: 400;
    line-height: 1.55;
    color: var(--text);
    text-align: left;
}

.info-popover.is-fixed {
    position: fixed;
    top: auto;
    left: auto;
    z-index: 1000;
    width: min(340px, calc(100vw - 24px));
}

.info-popover-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.info-popover-list li {
    margin-bottom: 8px;
}

.info-popover-list li:last-child {
    margin-bottom: 0;
}

.info-popover-list li::before {
    content: "· ";
    color: var(--muted);
}

.main-type-card {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 10px 36px 10px 10px;
}

.main-type-card .module-card-body {
    flex: 1;
    min-width: 0;
}

.main-type-card input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    width: 0;
    height: 0;
}

.main-type-card .module-check-indicator {
    position: absolute;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    border: 1.5px solid var(--border);
    border-radius: 50%;
    background: var(--input-bg);
    transition: background 0.15s, border-color 0.15s;
}

.main-type-card:has(input:checked) {
    border-color: var(--primary);
    background: var(--primary-soft);
}

.main-type-card:has(input:checked) .module-check-indicator {
    border-color: var(--primary);
    background: var(--primary);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' d='M2.5 6l2.5 2.5 5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 11px 11px;
}

.main-type-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.module-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.8rem;
    cursor: pointer;
    background: var(--input-bg);
    transition: all 0.15s;
}

.module-chip:has(input:checked) { border-color: var(--primary); background: var(--primary-soft); }
.module-chip input { accent-color: var(--primary); }

.generate-bar {
    flex-shrink: 0;
    position: relative;
    z-index: 5;
    background: var(--bg);
    border-top: 1px solid var(--border);
    padding: 12px 0 14px;
    margin-top: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
    box-shadow: 0 -6px 16px rgba(15, 23, 42, 0.06);
}

.generate-bar .btn {
    width: 100%;
    padding: 10px 18px;
    font-size: 0.88rem;
    font-weight: 500;
    min-height: 40px;
    box-sizing: border-box;
}

.generate-bar .btn-primary {
    border: 1px solid transparent;
}

.hint-text {
    font-size: 0.82rem;
    color: var(--muted);
    margin-bottom: 10px;
}

.generate-hint { font-size: 0.75rem; color: var(--muted); text-align: center; margin-top: 8px; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius-btn);
    border: none;
    font: inherit;
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.is-loading:disabled {
    opacity: 1;
    cursor: wait;
}
.btn-primary.is-loading {
    box-shadow: 0 0 0 3px rgba(176, 90, 90, 0.2);
}
.btn-primary.is-loading .spinner {
    display: inline-block !important;
    flex-shrink: 0;
}
.btn-primary { background: var(--primary-gradient); color: var(--on-primary); }
.btn-primary:hover:not(:disabled) { background: var(--primary-gradient-hover); }

.btn-label-row {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}
.btn-point-cost {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    height: auto;
    padding: 0;
    border: none;
    border-radius: 0;
    background: transparent;
    color: inherit;
    font-size: 0.88rem;
    font-weight: 700;
    line-height: 1;
    flex-shrink: 0;
    box-shadow: none;
}
.btn-point-cost-value {
    color: inherit;
    font-variant-numeric: tabular-nums;
}
.btn-point-cost svg {
    width: 15px;
    height: 15px;
    color: #67e8f9;
    flex-shrink: 0;
}
.btn-primary .btn-point-cost,
.btn-primary .btn-point-cost-value {
    color: #fff;
}
.btn-secondary .btn-point-cost,
.btn-secondary .btn-point-cost-value {
    color: var(--primary-dark);
}
.btn:disabled .btn-point-cost {
    opacity: 0.85;
}
.btn-secondary { background: var(--primary-soft); color: var(--primary-dark); border: 1px solid var(--primary-border); }
.btn-outline { background: transparent; color: var(--primary-dark); border: 1px solid var(--primary); }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-ghost:hover:not(:disabled) { background: var(--surface-2); border-color: var(--border); }
.btn-ghost:active:not(:disabled) { background: var(--surface); transform: scale(0.98); }
.btn-outline:hover:not(:disabled) { background: var(--primary-soft); }
.btn-outline:active:not(:disabled) { background: var(--primary-muted); transform: scale(0.98); }
.btn.is-loading { pointer-events: none; }
.analysis-head {
    justify-content: space-between;
    margin-bottom: 10px;
}

.analysis-head h2 {
    flex: 1;
}

.analysis-head .btn-reanalyze {
    margin-top: 0;
    flex-shrink: 0;
}

.btn-reanalyze { margin-top: 4px; }
.btn-reanalyze.is-loading {
    background: var(--primary-soft);
    border-color: var(--primary);
    color: var(--primary-dark);
    box-shadow: 0 0 0 3px rgba(176, 90, 90, 0.15);
}
.btn-sm { padding: 6px 14px; font-size: 0.78rem; }
.btn-block { width: 100%; }
.btn-xl { width: 100%; padding: 14px 20px; font-size: 1rem; font-weight: 600; border-radius: var(--radius-btn); }

.badge {
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
}
.badge-success { background: var(--success-bg); color: var(--success-text); }
.badge-secondary { background: var(--surface-2); color: var(--muted); }
.badge-primary { background: var(--primary-soft); color: var(--primary-dark); }

.analysis-scroll {
    max-height: min(340px, 42vh);
    overflow-y: auto;
    margin-bottom: 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-elevated);
    scrollbar-width: thin;
    scrollbar-color: var(--primary-border) transparent;
}

.analysis-scroll::-webkit-scrollbar { width: 6px; }
.analysis-scroll::-webkit-scrollbar-thumb {
    background: var(--primary-border);
    border-radius: 999px;
}

.analysis-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 8px 10px;
    margin-bottom: 0;
}

.analysis-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    flex-wrap: wrap;
}
.analysis-head-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.analysis-edit-input,
.analysis-edit-text,
.analysis-edit-lines {
    width: 100%;
    font-size: 0.82rem;
}
.analysis-edit-lines {
    min-height: 96px;
    resize: vertical;
}
.history-preview-item.is-failed .preview-image {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-2);
    border: 1px dashed var(--border);
    min-height: 120px;
}
.history-preview-item.is-loading .preview-image-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--surface) 0%, var(--primary-soft) 100%);
    border: 1px solid var(--primary-border);
    min-height: 120px;
}
.history-preview-item.is-loading .preview-image-loading::after {
    display: none;
}
.preview-loading-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px;
    z-index: 2;
}
.preview-loading-text {
    font-size: 0.75rem;
    color: var(--muted);
    font-weight: 600;
}
.preview-failed-body {
    text-align: center;
    padding: 12px;
    color: var(--muted, #6b7280);
    font-size: 0.78rem;
}
.preview-failed-body strong {
    display: block;
    color: var(--danger);
    margin-bottom: 6px;
}
.preview-retry-btn {
    margin-top: 8px;
}
.btn-cancel-generate {
    margin-top: 10px;
}
.analysis-item {
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 10px;
    font-size: 0.8rem;
}

.analysis-item.full { grid-column: unset; }
.analysis-item .label { font-size: 0.68rem; color: var(--muted); margin-bottom: 3px; }

.tag-list { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 4px; }
.tag { background: var(--primary-gradient); color: #fff; padding: 2px 8px; border-radius: 999px; font-size: 0.72rem; }

.history-empty {
    text-align: center;
    padding: 32px 16px;
    color: var(--muted);
    flex: 1;
}

.history-empty-art {
    width: 100%;
    max-width: 280px;
    height: 160px;
    margin: 0 auto 16px;
    border-radius: 12px;
    background: linear-gradient(135deg, #eef2ff 0%, #f5f3ff 100%);
    border: 1px solid var(--border);
}

.history-empty h3 { color: var(--text); font-size: 1rem; margin-bottom: 6px; }
.history-empty p { font-size: 0.82rem; line-height: 1.6; }

#historyGenerating {
    flex-shrink: 0;
}

.history-item-card.is-generating .history-progress-panel {
    margin-top: 4px;
}

.history-item-card.is-generating .progress-panel-body {
    padding: 14px 14px 10px;
    gap: 12px;
}

.history-item-card.is-generating .progress-panel-spinner {
    width: 40px;
    height: 40px;
}

.history-failed-card {
    background: var(--danger-bg);
    border: 1px solid #fecaca;
    border-radius: 12px;
    padding: 16px;
    color: var(--danger-text);
}

.history-failed-card strong {
    display: block;
    font-size: 0.92rem;
    margin-bottom: 8px;
}

.history-failed-card p {
    font-size: 0.82rem;
    line-height: 1.5;
    margin: 0;
}

.history-failed-hint {
    margin-top: 8px !important;
    color: var(--warning-text) !important;
    font-size: 0.78rem !important;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.history-date-divider {
    font-size: 0.78rem;
    color: var(--muted);
    font-weight: 600;
    padding: 4px 2px 0;
}

.history-item-card {
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
    box-shadow: var(--shadow);
}

.history-item-card.is-generating {
    border-color: var(--primary-border);
    background: linear-gradient(180deg, var(--panel) 0%, var(--primary-soft) 100%);
}

.history-item-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.history-item-title {
    font-size: 0.95rem;
    font-weight: 700;
    line-height: 1.4;
    flex: 1;
    min-width: 0;
}

.history-item-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    flex-wrap: wrap;
    justify-content: flex-end;
    max-width: 100%;
}

.history-item-actions .btn-cancel-generate,
.history-item-actions .btn-status-generating {
    box-sizing: border-box;
    height: 32px;
    width: 6rem;
    min-width: unset;
    min-height: unset;
    padding: 0 12px;
    font-size: 0.78rem;
    font-weight: 500;
    line-height: 1;
    border-radius: var(--radius-btn);
    flex-shrink: 0;
    white-space: nowrap;
    margin-top: 0;
    font-family: inherit;
}

.history-item-actions .btn-cancel-generate {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--primary-border);
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.history-item-actions .btn-status-generating {
    display: inline-grid;
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
    place-items: center;
    border: 1px solid transparent;
    background: var(--primary-gradient);
    color: #fff;
    cursor: default;
}

.history-item-actions .btn-status-generating:disabled {
    opacity: 1;
    cursor: default;
}

.history-item-actions .btn-status-generating .history-spinner.sm {
    grid-area: 1 / 1;
    justify-self: start;
    align-self: center;
}

.history-item-actions .btn-status-generating .btn-status-generating-text {
    grid-area: 1 / 1;
    justify-self: center;
    align-self: center;
    line-height: 1.2;
}

.history-item-actions .btn-download-all {
    width: auto;
    margin-bottom: 0;
    padding: 7px 12px;
    white-space: nowrap;
    flex-shrink: 0;
}

.btn-history-delete {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    background: var(--panel);
    color: var(--muted);
    font: inherit;
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
    flex-shrink: 0;
    white-space: nowrap;
}

.btn-history-delete:hover {
    color: var(--danger-text);
    border-color: #fecaca;
    background: var(--danger-bg);
}

.preview-delete-btn {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 34px;
    height: 34px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.72);
    color: #fff;
}

.preview-delete-btn:hover {
    background: rgba(185, 28, 28, 0.88);
}

.btn-status-generating {
    cursor: default;
    white-space: nowrap;
}

.history-item-actions .btn-status-generating {
    min-width: 0;
    margin: 0;
}

.btn-status-generating-text {
    line-height: 1.2;
}

.btn-download-all {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
    padding: 10px 16px;
    border: 1px solid var(--primary-border);
    border-radius: var(--radius-pill);
    background: var(--primary-soft);
    color: var(--primary-dark);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    margin-bottom: 4px;
}

.btn-download-all:hover:not(:disabled) {
    border-color: var(--primary-border);
    background: var(--primary-soft);
    color: var(--primary-dark);
}

.btn-download-all.is-disabled,
.btn-download-all:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.history-meta-tags,
.history-meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 10px;
}

.history-tag {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 500;
    background: var(--surface-2);
    color: var(--muted);
    border: 1px solid var(--border);
}

.history-tag.time { background: var(--surface); }
.history-tag.warn {
    background: var(--warning-bg);
    color: var(--warning-text);
    border-color: #fcd34d;
}
.history-tag.done {
    background: var(--success-bg);
    color: var(--success-text);
    border-color: #a7f3d0;
}
.history-tag.platform {
    background: var(--primary-soft);
    color: var(--primary-dark);
    border-color: var(--primary-border);
}

.history-scene-desc {
    font-size: 0.8rem;
    color: var(--muted);
    line-height: 1.6;
    margin-bottom: 12px;
}

.history-scene-summary {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 0.82rem;
    color: var(--text);
}

.history-mini-thumb {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    object-fit: cover;
    border: 1px solid var(--border);
    cursor: zoom-in;
    flex-shrink: 0;
    pointer-events: auto;
}

.history-progress-panel {
    border: 1px solid var(--primary-border);
    border-radius: 12px;
    overflow: hidden;
    background: var(--input-bg);
}

.progress-panel-head {
    padding: 8px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--primary-dark);
    background: var(--primary-soft);
    border-bottom: 1px solid var(--primary-muted);
}

.progress-panel-body {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 16px 12px;
}

.progress-panel-spinner {
    width: 52px;
    height: 52px;
    border: 3px solid var(--primary-muted);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    flex-shrink: 0;
}

.progress-panel-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.progress-panel-text strong {
    font-size: 0.92rem;
    color: var(--text);
}

.progress-message {
    font-size: 0.78rem;
    color: var(--muted);
}

.progress-sub {
    font-size: 0.72rem;
    color: var(--muted);
}

.progress-panel-bar {
    height: 4px;
    background: var(--primary-soft);
    margin: 0 16px 12px;
    border-radius: 999px;
    overflow: hidden;
}

.progress-panel-bar .progress-fill {
    height: 100%;
    background: var(--primary-gradient);
    transition: width 0.35s ease;
}

.progress-panel-workflow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 12px 12px;
    border-top: 1px solid var(--border);
    font-size: 0.75rem;
    color: var(--muted);
}

.workflow-step.active {
    color: var(--primary-dark);
    font-weight: 700;
}

.workflow-step.done {
    color: var(--muted);
}

.workflow-arrow {
    color: var(--border);
    font-size: 0.7rem;
}

.history-preview-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-top: 14px;
}

.history-preview-item {
    min-width: 0;
}

.preview-label {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 8px;
}

.preview-image {
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    background: var(--preview-bg);
    position: relative;
}

.preview-image.is-previewable {
    cursor: zoom-in;
    aspect-ratio: 1;
}

.preview-image.is-previewable img {
    cursor: zoom-in;
    pointer-events: auto;
    position: relative;
    z-index: 0;
}

.preview-image::after {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0);
    transition: background 0.2s;
    pointer-events: none;
    z-index: 1;
}

.preview-image:hover::after {
    background: rgba(15, 23, 42, 0.12);
}

.preview-image-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    z-index: 2;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.preview-image:hover .preview-image-overlay {
    opacity: 1;
    visibility: visible;
}

.preview-overlay-btn {
    pointer-events: none;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.15s, background 0.15s;
}

.preview-image:hover .preview-overlay-btn {
    pointer-events: auto;
}

.preview-overlay-btn:hover {
    transform: scale(1.05);
}

.preview-view-btn {
    width: 52px;
    height: 52px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.92);
    color: var(--primary-dark);
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.18);
}

.preview-download-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 34px;
    height: 34px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.72);
    color: #fff;
}

.preview-download-btn:hover {
    background: rgba(30, 41, 59, 0.92);
}

.preview-edit-btn {
    position: absolute;
    right: 10px;
    bottom: 10px;
    pointer-events: none;
    border: none;
    border-radius: 999px;
    padding: 8px 14px;
    background: rgba(15, 23, 42, 0.82);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    z-index: 3;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease, background 0.15s;
}

.preview-image:hover .preview-edit-btn {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

#studioDrop .preview-item.is-previewable,
#studioDrop .preview-item.is-previewable img,
.studio-drop .preview-item.is-previewable,
.studio-drop .preview-item.is-previewable img {
    cursor: zoom-in;
}

.preview-edit-btn:hover {
    background: rgba(15, 23, 42, 0.95);
}

.remake-modal {
    position: fixed;
    inset: 0;
    z-index: 12000;
    background: rgba(15, 23, 42, 0.45);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.remake-modal.show {
    display: flex;
}

.remake-modal-card {
    width: min(520px, 100%);
    background: var(--input-bg);
    border-radius: 14px;
    padding: 18px;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.25);
}

.remake-modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.remake-modal-head h3 {
    margin: 0;
    font-size: 1rem;
}

.remake-modal-close {
    border: none;
    background: transparent;
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
    color: var(--muted);
}

.remake-modal-preview {
    width: 100%;
    max-height: 220px;
    object-fit: contain;
    border-radius: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
}

.remake-modal-label {
    margin: 10px 0 8px;
    font-size: 0.82rem;
    color: var(--muted);
}

.remake-modal-input {
    min-height: 88px;
    margin-bottom: 12px;
}

.remake-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.preview-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.generating-live-grid {
    margin-bottom: 12px;
}

.history-spinner {
    width: 22px;
    height: 22px;
    border: 2.5px solid var(--primary-border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    flex-shrink: 0;
}

.history-spinner.sm {
    width: 14px;
    height: 14px;
    border-width: 2px;
}

.image-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.image-cell {
    aspect-ratio: 1;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
}

.image-grid img { width: 100%; height: 100%; object-fit: cover; display: block; }

.progress-fill { height: 100%; width: 0; background: var(--primary-gradient); transition: width 0.3s; }

.prompt-tabs { display: flex; gap: 6px; margin: 10px 0; }
.prompt-tab, .tab-btn {
    padding: 6px 16px;
    border: 1px solid var(--border);
    background: var(--input-bg);
    border-radius: var(--radius-pill);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.prompt-tab:not(.active):hover,
.tab-btn:not(.active):hover {
    border-color: var(--primary-border);
    background: var(--primary-soft);
    color: var(--primary-dark);
}
.prompt-tab.active, .tab-btn.active { background: var(--primary-gradient); color: #fff; border-color: transparent; }

.prompt-editor-content { display: none; max-height: 280px; overflow-y: auto; }
.prompt-editor-content.active { display: block; }
.prompt-item { margin-bottom: 8px; }
.prompt-item label { font-size: 0.72rem; color: var(--muted); }
.prompt-item-meta {
    font-size: 0.68rem;
    color: var(--muted);
    margin-bottom: 4px;
}

.prompt-item textarea { width: 100%; min-height: 56px; margin-top: 2px; padding: 8px; border: 1px solid var(--border); border-radius: 6px; font-size: 0.78rem; }

.platform-checkboxes { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-bottom: 8px; }
.checkbox-label, .radio-label { font-size: 0.82rem; display: flex; align-items: center; gap: 4px; cursor: pointer; }
.title-lang-row { display: flex; gap: 12px; margin-bottom: 10px; }
.title-card { background: var(--surface); border-radius: 8px; padding: 14px; margin-top: 10px; font-size: 0.85rem; }
.title-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
.keyword-list { display: flex; flex-wrap: wrap; gap: 4px; }
.bullet-list { list-style: none; font-size: 0.82rem; }
.bullet-list li::before { content: "✓ "; color: var(--success); }
.reasoning { margin-top: 8px; padding: 8px; background: var(--input-bg); border: 1px solid var(--border); border-radius: 6px; font-size: 0.78rem; color: var(--muted); }

.spinner {
    width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,0.35);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
.spinner-dark {
    border-color: rgba(176, 90, 90, 0.25);
    border-top-color: var(--primary);
}
@keyframes spin { to { transform: rotate(360deg); } }

.toast {
    position: fixed; bottom: 24px; left: 50%;
    transform: translateX(-50%) translateY(80px);
    background: #111827; color: #fff;
    padding: 12px 22px; border-radius: var(--radius-pill);
    opacity: 0; transition: all 0.3s; z-index: 1000; font-size: 0.88rem;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* —— 图片生成板块 —— */
.studio-shell {
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 0;
}
.studio-layout {
    display: grid;
    grid-template-columns: minmax(360px, 400px) minmax(0, 1fr) minmax(240px, 280px);
    gap: 16px;
    flex: 1;
    min-height: 0;
    padding: 16px;
    background: var(--bg);
}

/* 工具页（去背景/去水印/高清放大/图片翻译）：两栏布局，左侧栏与图片生成页同宽 */
.studio-layout.tool-layout {
    grid-template-columns: minmax(330px, 375px) minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr);
    align-items: stretch;
}
.studio-layout.tool-layout .studio-canvas-wrap {
    max-height: calc(100vh - 120px);
}

/* 图片生成页：左侧设置栏（约为原宽度的 75%）+ 右侧大画布 */
.studio-layout:not(.tool-layout) {
    grid-template-columns: minmax(330px, 375px) minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr);
    align-items: stretch;
}
.studio-layout:not(.tool-layout) .studio-canvas-wrap {
    max-height: calc(100vh - 120px);
}
.studio-sidebar,
.studio-history {
    overflow-y: auto;
    max-height: calc(100vh - 120px);
    min-width: 0;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-border) transparent;
}
.studio-sidebar::-webkit-scrollbar,
.studio-history::-webkit-scrollbar {
    width: 6px;
}
.studio-sidebar::-webkit-scrollbar-thumb,
.studio-history::-webkit-scrollbar-thumb {
    background: var(--primary-border);
    border-radius: 999px;
}
.studio-add-ref-btn {
    margin-top: 8px;
}

.studio-ref-actions .btn.active-ref {
    border-color: var(--primary);
    color: var(--primary-dark);
    background: var(--primary-soft);
}
.preview-ref-btn.is-active-ref {
    border-color: var(--primary);
    color: var(--primary-dark);
    background: var(--primary-soft);
}
.studio-sidebar .config-card,
.studio-history .config-card {
    width: 100%;
}
.studio-sidebar .select,
.studio-sidebar .textarea,
.studio-sidebar .btn-block {
    width: 100%;
    min-width: 0;
}
.studio-generate-prompt,
.studio-region-prompt {
    min-height: 90px;
}
.studio-generate-prompt {
    margin-bottom: 8px;
}
.studio-region-prompt {
    margin-bottom: 10px;
}
.studio-sidebar .config-card > .field + .studio-region-prompt,
.studio-sidebar .config-card > .field + .studio-generate-prompt {
    margin-top: 12px;
}
.studio-batch-row {
    margin-bottom: 0;
}
.studio-sidebar .config-card > .field:has(#studioModel) + .field {
    margin-top: 4px;
}
.studio-sidebar .config-card > .field:has(.studio-batch-row) {
    margin-bottom: 0;
}
.studio-sidebar .config-card > .field:has(.studio-batch-row) + .studio-spec-row {
    margin-top: 4px;
}
.studio-batch-row .preset-btn {
    flex: 1;
    min-width: 0;
    text-align: center;
}
.studio-ref-hint {
    margin: 0 0 10px;
    font-size: 0.75rem;
    line-height: 1.45;
}
.studio-image-stack.studio-has-ref::before {
    content: "参考图";
    position: absolute;
    top: 8px;
    left: 8px;
    z-index: 6;
    padding: 4px 10px;
    border-radius: 999px;
    background: var(--primary-gradient);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1.2;
    white-space: nowrap;
    pointer-events: none;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.18);
}
.studio-sidebar .select {
    padding-right: 28px;
}
.studio-field-stack {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 10px;
}
.studio-spec-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 12px;
    margin-bottom: 10px;
}
.studio-spec-row .field {
    min-width: 0;
    gap: 4px;
}
.studio-spec-row .field span {
    display: block;
    font-size: 0.78rem;
    color: var(--muted);
    margin: 0;
}
.studio-spec-row .select {
    width: 100%;
    min-width: 0;
}

/* 工具页：小标题与下拉框间距对齐图片生成页 */
.tool-layout .studio-sidebar .config-card > .field,
.tool-layout .tool-settings-panel > .field {
    gap: 4px;
}
.tool-layout .studio-sidebar .config-card > .field > span,
.tool-layout .tool-settings-panel > .field > span {
    margin: 0;
}
.tool-layout .studio-sidebar .config-card > .field:has(#toolModel) + .studio-spec-row {
    margin-top: 4px;
}
.tool-layout .studio-sidebar .config-card > .studio-spec-row {
    margin-bottom: 0;
}
.tool-layout .tool-settings-panel {
    margin-top: 4px;
}
body[data-tool-id="去水印"] .tool-layout .tool-settings-panel,
body[data-tool-id="高清放大"] .tool-layout .tool-settings-panel {
    margin-top: 12px;
}
body[data-tool-id="去水印"] .tool-settings-panel .btn-block,
body[data-tool-id="高清放大"] .tool-settings-panel .btn-block {
    margin-top: 0;
}

.studio-check {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin: 8px 0 12px;
    font-size: 0.82rem;
    line-height: 1.45;
}
.studio-check input {
    flex-shrink: 0;
    margin-top: 3px;
}
.studio-sidebar .btn-block {
    white-space: nowrap;
}
.studio-canvas-wrap {
    display: flex;
    flex-direction: column;
    min-height: 0;
    background: var(--surface);
    border-radius: 12px;
    border: 1px solid var(--border);
    padding: 12px;
}
.studio-canvas-stage {
    flex: 1;
    display: grid;
    place-items: center;
    min-height: 0;
    position: relative;
    overflow: hidden;
}
.studio-canvas-loading {
    position: absolute;
    inset: 0;
    z-index: 20;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(3px);
    border-radius: 8px;
}
.studio-canvas-loading[hidden] {
    display: none !important;
}
.studio-canvas-spinner {
    width: 44px;
    height: 44px;
    border: 3px solid var(--primary-muted);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    flex-shrink: 0;
}
.studio-canvas-loading-text {
    margin: 0;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--muted);
    text-align: center;
    padding: 0 16px;
}
.studio-canvas-stage.is-canvas-loading > .studio-empty,
.tool-canvas-stage.is-canvas-loading > .studio-empty {
    visibility: hidden;
}
.studio-empty { color: var(--muted); text-align: center; }
.studio-canvas-inner {
    position: relative;
    max-width: 100%;
    max-height: 100%;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin: auto;
}
.studio-canvas-inner.preview-image,
.studio-image-stack.preview-image {
    aspect-ratio: unset;
    border: none;
    background: transparent;
}
.studio-image-stack.preview-image {
    border-radius: 8px;
    overflow: visible;
}
.studio-image-stack {
    position: relative;
    display: inline-block;
    line-height: 0;
    max-width: 100%;
    max-height: 100%;
    flex-shrink: 0;
    vertical-align: middle;
}
/* 覆盖 .preview-image img 的 cover 裁剪，画布需完整显示全图 */
.studio-image-stack.preview-image img,
.studio-image-stack img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
    display: block;
    border-radius: 8px;
    vertical-align: top;
    position: relative;
    z-index: 2;
    cursor: zoom-in;
}
.studio-image-stack #studioMaskCanvas,
.studio-image-stack #reMaskCanvas {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    border-radius: 8px;
    z-index: 3;
}
.studio-canvas-inner:not(.studio-editing) .studio-image-stack #studioMaskCanvas,
.studio-canvas-inner:not(.studio-editing) .studio-image-stack #reMaskCanvas {
    pointer-events: none;
    z-index: 1;
}
.studio-canvas-inner.studio-editing .studio-image-stack #studioMaskCanvas,
.studio-canvas-inner.studio-editing .studio-image-stack #reMaskCanvas {
    pointer-events: auto;
    z-index: 5;
    cursor: crosshair;
}
.studio-image-stack .preview-image-overlay,
.studio-image-stack .preview-edit-btn,
.studio-image-stack .preview-ref-btn {
    z-index: 4;
}
.studio-canvas-inner:not(.studio-editing) #studioMaskCanvas,
.studio-canvas-inner:not(.studio-editing) #reMaskCanvas {
    pointer-events: none;
}
.studio-canvas-inner.studio-editing .studio-image-stack .preview-image-overlay,
.studio-canvas-inner.studio-editing .studio-image-stack .preview-edit-btn,
.studio-canvas-inner.studio-editing .studio-image-stack .preview-ref-btn {
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
}
.preview-ref-btn {
    position: absolute;
    left: 10px;
    bottom: 10px;
    pointer-events: auto;
    border: none;
    border-radius: 999px;
    padding: 8px 14px;
    background: var(--primary-gradient-hover);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    z-index: 3;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease, background 0.15s;
}
.preview-image:hover .preview-ref-btn {
    opacity: 1;
    visibility: visible;
}
.preview-ref-btn:hover {
    background: var(--primary-gradient-hover);
}
.studio-history-list { display: flex; flex-direction: column; gap: 12px; }
.studio-canvas-history {
    flex-shrink: 0;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}
.studio-canvas-history-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 8px;
}
.studio-canvas-history-head h2 {
    margin: 0;
    font-size: 0.88rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}
.studio-history-toggle {
    flex-shrink: 0;
    font-size: 0.75rem;
    padding: 4px 10px;
}
.studio-canvas-history.is-collapsed .studio-history-list,
.studio-canvas-history.is-collapsed .studio-history-empty {
    display: none;
}
.studio-canvas-history.is-collapsed {
    margin-top: 8px;
    padding-top: 8px;
}
.studio-canvas-history.is-collapsed .studio-canvas-history-head {
    margin-bottom: 0;
}
.studio-history-strip {
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 10px;
    overflow-x: auto;
    overflow-y: hidden;
    padding-bottom: 4px;
    min-height: 96px;
    scrollbar-width: thin;
}
.studio-history-strip::-webkit-scrollbar {
    height: 6px;
}
.studio-history-strip::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 999px;
}
.studio-history-strip .studio-history-preview {
    flex: 0 0 auto;
    width: 88px;
}
.studio-history-strip .studio-history-preview .preview-label {
    font-size: 0.68rem;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--muted);
}
.studio-history-strip .studio-history-thumb {
    width: 88px;
    height: 88px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--input-bg);
}
.studio-history-strip .studio-history-thumb.is-active {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-soft);
}
.studio-history-strip .preview-edit-btn,
.studio-history-strip .preview-ref-btn {
    display: none;
}
.studio-history-strip .preview-delete-btn,
.studio-history-strip .preview-download-btn {
    top: 2px;
    width: 26px;
    height: 26px;
}
.studio-history-strip .preview-delete-btn {
    left: 2px;
}
.studio-history-strip .preview-download-btn {
    right: 2px;
}
.studio-history-strip .preview-overlay-btn svg {
    width: 14px;
    height: 14px;
}
.studio-history-empty {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 88px;
    color: var(--muted);
    font-size: 0.78rem;
}
.studio-history-preview .preview-label {
    font-size: 0.75rem;
    margin-bottom: 4px;
}
.studio-history-thumb {
    aspect-ratio: 1;
    cursor: pointer;
}
.studio-history-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    cursor: pointer;
}
#studioMaskCanvas,
#reMaskCanvas {
    cursor: crosshair;
    touch-action: none;
}

.tool-layout .tool-canvas-stage {
    flex: 1;
    display: grid;
    place-items: center;
    min-height: 0;
    position: relative;
    overflow: hidden;
}
.tool-layout .tool-result-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 100%;
    max-height: 100%;
    width: 100%;
    height: 100%;
}
.tool-layout .tool-result-pane {
    position: relative;
    min-height: 0;
    padding: 0;
    border: none;
    background: transparent;
    overflow: visible;
    line-height: 0;
}
.tool-layout .tool-result-pane.has-alpha {
    background-color: #fff;
    background-image:
        linear-gradient(45deg, #e2e8f0 25%, transparent 25%),
        linear-gradient(-45deg, #e2e8f0 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #e2e8f0 75%),
        linear-gradient(-45deg, transparent 75%, #e2e8f0 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0;
    border-radius: 8px;
}
.tool-layout .tool-result-pane img {
    width: auto;
    height: auto;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    object-position: center;
    display: block;
    border-radius: 8px;
    cursor: zoom-in;
}

.tool-layout .tool-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    flex: 1;
    min-height: 0;
    padding: 16px;
}

.tool-pane-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--muted);
    margin-bottom: 8px;
}

.tool-pane-body {
    position: relative;
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    min-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.tool-pane-body.has-alpha {
    background-color: #fff;
    background-image:
        linear-gradient(45deg, #e2e8f0 25%, transparent 25%),
        linear-gradient(-45deg, #e2e8f0 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #e2e8f0 75%),
        linear-gradient(-45deg, transparent 75%, #e2e8f0 75%);
    background-size: 16px 16px;
    background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

.tool-pane-body img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
}

.tool-opt {
    display: none;
}
.tool-settings-panel {
    margin-top: 4px;
    padding-top: 0;
    border-top: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.tool-settings-panel > .field {
    margin: 0;
    gap: 4px;
}
.tool-settings-panel > .field > span {
    margin: 0;
}
.tool-settings-panel .btn-block {
    margin-top: 2px;
}
.studio-tool-row { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.studio-brush-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}
.studio-brush-row[hidden] {
    display: none !important;
}
.studio-brush-label {
    font-size: 0.82rem;
    color: var(--muted);
    flex-shrink: 0;
}
.studio-brush-presets {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0;
    flex: 1;
}
.brush-size-btn {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--input-bg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 0;
    color: var(--text);
    transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
}
.brush-size-btn:hover {
    border-color: var(--primary);
    background: var(--primary-soft);
}
.brush-size-btn.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-soft);
    background: var(--primary-soft);
    color: var(--primary-dark);
}
.brush-size-dot {
    display: block;
    border-radius: 50%;
    background: currentColor;
    flex-shrink: 0;
}
.brush-size-btn[data-brush="10"] .brush-size-dot {
    width: 8px;
    height: 8px;
}
.brush-size-btn[data-brush="18"] .brush-size-dot {
    width: 14px;
    height: 14px;
}
.brush-size-btn[data-brush="32"] .brush-size-dot {
    width: 22px;
    height: 22px;
}
.studio-tool.active { background: var(--primary-gradient); color: #fff; border-color: transparent; }
.studio-drop { cursor: pointer; padding: 20px; text-align: center; }
.studio-drop.has-preview { padding: 12px; }
.studio-drop.dragover { border-color: var(--primary); background: var(--primary-soft); }
.studio-upload-preview {
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: var(--input-bg);
}
.studio-upload-preview img {
    width: 100%;
    max-height: 220px;
    object-fit: contain;
    display: block;
    background: var(--input-bg);
    cursor: zoom-in;
    pointer-events: auto;
}
.studio-upload-preview-hint {
    margin: 0;
    padding: 8px 10px;
    font-size: 0.72rem;
    color: var(--muted);
    text-align: center;
    border-top: 1px solid var(--border);
    background: var(--surface);
    cursor: pointer;
}
.studio-upload-preview-hint:hover {
    color: var(--primary-dark);
    background: var(--primary-soft);
}
.studio-canvas-actions {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 10px;
}

.studio-placeholder {
    margin: 40px auto;
    max-width: 480px;
    text-align: center;
    padding: 48px 24px;
    background: var(--input-bg);
    border-radius: 16px;
    border: 1px solid var(--border);
}
.studio-placeholder h2 { margin-top: 0; }

@media (max-width: 1099px) {
    body { overflow: auto; }
    .app-shell {
        height: auto;
        min-height: 100dvh;
    }
    .app-header-inner {
        height: auto;
        min-height: 72px;
        padding: 10px 16px;
        flex-wrap: wrap;
        gap: 10px;
    }
    .app-header-announce {
        order: 3;
        flex: 1 1 100%;
    }
    .workspace-shell {
        height: auto;
        overflow: visible;
    }
    .workspace-panels {
        flex-direction: column;
        overflow: visible;
        min-height: auto;
    }
    .config-panel,
    .history-panel {
        width: 100%;
        flex: none;
        height: auto;
        min-height: 240px;
        max-height: none;
    }
    .side-panel-stack {
        height: auto;
        min-height: 0;
    }
    .titles-card {
        max-height: none;
    }
    .studio-layout,
    .studio-layout.tool-layout,
    .studio-layout:not(.tool-layout) {
        grid-template-columns: 1fr;
        min-height: auto;
    }
    .studio-sidebar,
    .studio-history {
        max-height: none;
    }
    .studio-layout:not(.tool-layout) .studio-canvas-wrap,
    .studio-layout.tool-layout .studio-canvas-wrap {
        max-height: none;
        min-height: 320px;
    }
    .nav-rail {
        width: 200px;
    }
}

@media (max-width: 960px) {
    .studio-layout { grid-template-columns: 1fr; }
    .studio-sidebar, .studio-history { max-height: none; }
    .studio-layout:not(.tool-layout) .studio-canvas-wrap {
        max-height: none;
    }
}

.lightbox {
    position: fixed; inset: 0; background: rgba(0,0,0,0.88);
    display: flex; align-items: center; justify-content: center; z-index: 15000; cursor: zoom-out;
}
.lightbox img { max-width: 92vw; max-height: 92vh; object-fit: contain; pointer-events: none; }

@media (max-width: 720px) {
    body { overflow: auto; }
    .app-shell {
        height: auto;
        min-height: 100dvh;
    }
    .app-header-inner {
        padding: 8px 12px;
        gap: 8px;
        min-height: 64px;
    }
    .app-header-brand .brand-name {
        font-size: 0.95rem;
    }
    .app-header-announce {
        padding: 8px 12px;
    }
    .app-announce-badge {
        display: none;
    }
    .app-header-btn,
    .app-header-pill {
        width: 44px;
        height: 44px;
    }
    .app-header-points {
        width: auto;
        min-width: 44px;
        padding: 0 10px;
        gap: 4px;
    }
    .app-header-points #pointsValue {
        font-size: 0.82rem;
    }
    .app-header-user #accountLabel {
        display: none;
    }
    .workspace {
        flex-direction: column;
        height: auto;
        min-height: 0;
        min-width: 0;
    }
    .workspace-shell { height: auto; overflow: visible; }
    .nav-rail {
        width: 100%;
        display: flex;
        gap: 8px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 10px 12px;
    }
    .nav-brand { display: none; }
    .nav-group {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-shrink: 0;
    }
    .nav-group-tools,
    .nav-group-space {
        margin-top: 0;
        padding-top: 0;
        border-top: none;
    }
    .nav-group-title { display: none; }
    .nav-item {
        flex-shrink: 0;
        white-space: nowrap;
        margin-bottom: 0;
        padding: 8px 12px;
    }
    .workspace-panels { flex-direction: column; overflow: visible; padding: 12px; gap: 12px; }
    .config-panel, .history-panel { width: 100%; }
    .module-grid { grid-template-columns: 1fr; }
    .preview-grid { grid-template-columns: repeat(2, 1fr); }
    .field-grid.three, .field-grid.two { grid-template-columns: 1fr; }
    .workspace-topbar { padding: 14px 16px 10px; }
    .workspace-topbar h1 { font-size: 1.12rem; }
    .app-modal { padding: 12px; align-items: flex-end; }
    .app-modal-card { width: 100%; max-height: calc(100dvh - 24px); overflow: auto; }
}

/* ── Task monitor ── */
body.monitor-standalone {
    margin: 0;
    min-height: 100vh;
    height: auto;
    overflow-x: hidden;
    overflow-y: auto;
    background: var(--bg);
}
.monitor-layout {
    max-width: 1400px;
    margin: 0 auto;
    padding: 16px 24px 48px;
    min-height: 100vh;
}
.monitor-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: var(--bg);
    padding-bottom: 8px;
    margin-bottom: 8px;
    border-bottom: 1px solid var(--border);
}
.monitor-main {
    padding-top: 8px;
}
.monitor-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0 4px 4px;
}
.monitor-tab {
    border: 1px solid var(--border);
    background: var(--panel);
    color: var(--muted);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
}
.monitor-tab:hover {
    color: var(--text);
    border-color: var(--primary-border);
}
.monitor-tab.active {
    background: var(--primary-soft);
    color: var(--primary-dark);
    border-color: var(--primary-border);
}
.monitor-tab-panel {
    display: none;
}
.monitor-tab-panel.active {
    display: block;
}
.monitor-grid-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.monitor-panels-single {
    grid-template-columns: 1fr;
    gap: 16px;
}
.monitor-panel-scroll {
    max-height: none;
    overflow: visible;
}
.monitor-shell { padding: 0; overflow: visible; }
.monitor-toolbar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 16px 0;
    flex-shrink: 0;
    margin-bottom: 16px;
}
.monitor-topbar-title h1 {
    margin: 0;
    font-size: 1.25rem;
    line-height: 1.3;
}
.monitor-topbar { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.monitor-subtitle { color: var(--muted); font-size: 0.875rem; margin: 4px 0 0; }
.monitor-topbar-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.monitor-toggle { display: inline-flex; align-items: center; gap: 6px; font-size: 0.8125rem; color: var(--muted); cursor: pointer; user-select: none; }
.monitor-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; margin-bottom: 16px; }
.monitor-grid-business { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.monitor-grid-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.monitor-section-title {
    font-size: 0.95rem;
    font-weight: 700;
    margin: 8px 0 12px;
    color: var(--text);
}
.monitor-subtable-wrap { max-height: 220px; margin-bottom: 20px; }
.monitor-ledger-panel { margin-top: 16px; }
.monitor-ledger-wrap { max-height: 320px; }
.monitor-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; box-shadow: var(--shadow); }
.monitor-card-label { font-size: 0.75rem; color: var(--muted); margin-bottom: 6px; }
.monitor-card-value { font-size: 1.35rem; font-weight: 700; line-height: 1.2; }
.monitor-card-hint { font-size: 0.72rem; color: var(--muted); margin-top: 6px; }
.monitor-panels { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 16px; align-items: start; }
.monitor-panel { margin-bottom: 0; }
.monitor-panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.monitor-table-wrap { overflow-x: auto; }
.monitor-table { width: 100%; border-collapse: collapse; font-size: 0.8125rem; }
.monitor-table th, .monitor-table td { padding: 10px 8px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.monitor-table th { position: sticky; top: 0; background: var(--panel); color: var(--muted); font-weight: 600; z-index: 1; }
.monitor-table tr.is-stuck { background: var(--warning-bg); }
.monitor-empty { text-align: center; color: var(--muted); padding: 24px !important; }
.monitor-status { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.monitor-status.is-active { background: var(--primary-soft); color: var(--primary-dark); }
.monitor-status.is-warn { background: var(--warning-bg); color: var(--warning-text); }
.monitor-status.is-error { background: var(--danger-bg); color: var(--danger-text); }
.monitor-status.is-ok { background: var(--success-bg); color: var(--success-text); }
.monitor-status.is-muted { background: var(--surface-2); color: var(--muted); }
.monitor-tag.warn { display: inline-block; margin-left: 4px; padding: 1px 6px; border-radius: 999px; background: var(--warning-bg); color: var(--warning-text); font-size: 0.68rem; font-weight: 700; }
.monitor-message { max-width: 220px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--muted); }
.monitor-actions { white-space: nowrap; }
.monitor-link { border: none; background: none; color: var(--primary-dark); cursor: pointer; font: inherit; padding: 0; text-decoration: underline; }
.monitor-side { display: flex; flex-direction: column; gap: 16px; }
.monitor-kv { display: grid; grid-template-columns: 88px 1fr; gap: 8px 10px; font-size: 0.8125rem; }
.monitor-kv dt { color: var(--muted); }
.monitor-kv dd { margin: 0; word-break: break-all; }
.monitor-events { max-height: 320px; overflow: auto; display: flex; flex-direction: column; gap: 8px; }
.monitor-event { border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; font-size: 0.78rem; }
.monitor-event-time { color: var(--muted); margin-bottom: 2px; }
.monitor-event-body { display: flex; gap: 8px; flex-wrap: wrap; }
.monitor-modal { position: fixed; inset: 0; z-index: 1000; display: grid; place-items: center; }
.monitor-modal[hidden] { display: none !important; }
.monitor-modal-backdrop { position: absolute; inset: 0; background: rgba(15, 23, 42, 0.35); }
.monitor-modal-card { position: relative; width: min(760px, calc(100vw - 32px)); max-height: calc(100vh - 48px); background: var(--panel); border-radius: var(--radius); box-shadow: 0 20px 40px rgba(15, 23, 42, 0.18); display: flex; flex-direction: column; }
.monitor-modal-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 16px; border-bottom: 1px solid var(--border); }
.monitor-modal-body { margin: 0; padding: 16px; overflow: auto; font-size: 0.78rem; line-height: 1.45; background: var(--surface); }

@media (max-width: 1200px) {
    .monitor-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .monitor-grid-business,
    .monitor-grid-5,
    .monitor-grid-6 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .monitor-panels { grid-template-columns: 1fr; }
}

/* —— 邀请有礼 —— */
.invite-shell {
    overflow: auto;
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}
.invite-page {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 28px 24px 40px;
    background: var(--bg);
    min-height: 0;
}
.invite-card {
    width: min(920px, 100%);
    padding: 28px 32px 24px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
}
.invite-card-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
}
.invite-gift-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--primary-soft);
    color: var(--primary-dark);
}
.invite-card-head h1 {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}
.invite-rules {
    margin: 0 0 22px;
    padding-left: 1.2em;
    color: var(--text);
    font-size: 0.92rem;
    line-height: 1.7;
}
.invite-rules li + li {
    margin-top: 6px;
}
.invite-share {
    background: linear-gradient(180deg, rgba(176, 90, 90, 0.05) 0%, rgba(148, 74, 74, 0.03) 100%);
    border: 1px solid var(--primary-border);
    border-radius: 14px;
    padding: 18px 18px 16px;
    margin-bottom: 22px;
}
.invite-share h2 {
    margin: 0 0 6px;
    font-size: 0.98rem;
    font-weight: 700;
}
.invite-share-hint {
    margin: 0 0 14px;
    font-size: 0.82rem;
    color: var(--muted);
    line-height: 1.55;
}
.invite-link-row {
    display: flex;
    gap: 10px;
    align-items: stretch;
}
.invite-link-field {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0 12px;
}
.invite-link-icon {
    color: var(--muted);
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
}
.invite-link-input {
    border: none;
    background: transparent;
    box-shadow: none;
    padding: 10px 0;
    min-width: 0;
    font-size: 0.84rem;
}
.invite-link-input:focus {
    outline: none;
    box-shadow: none;
}
.invite-link-row .btn-primary {
    flex-shrink: 0;
    white-space: nowrap;
    padding: 0 18px;
}
.invite-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 16px;
}
.invite-stat {
    display: flex;
    gap: 14px;
    padding: 20px 22px;
    background: var(--panel);
}
.invite-stat + .invite-stat {
    border-left: 1px solid var(--border);
}
.invite-stat-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.invite-stat-icon-user {
    background: rgba(176, 90, 90, 0.1);
    color: var(--primary-dark);
}
.invite-stat-icon-points {
    background: rgba(148, 74, 74, 0.08);
    color: var(--primary-dark);
}
.invite-stat-label {
    margin: 0 0 6px;
    font-size: 0.82rem;
    color: var(--muted);
}
.invite-stat-value {
    margin: 0 0 6px;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    color: var(--text);
}
.invite-stat-sub {
    margin: 0;
    font-size: 0.75rem;
    color: var(--muted);
    line-height: 1.5;
}
.invite-footnote {
    margin: 0;
    text-align: center;
    font-size: 0.78rem;
    color: var(--muted);
}
.invite-records-link-wrap {
    display: flex;
    justify-content: flex-end;
    margin-top: 10px;
}
.invite-records-link {
    border: 1px solid var(--primary-border);
    background: var(--primary-soft);
    color: var(--primary-dark);
    font: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    transition: background 0.15s, border-color 0.15s;
}
.invite-records-link:hover {
    text-decoration: none;
    background: var(--primary-muted);
    border-color: var(--primary);
}
.invite-records-modal {
    position: fixed;
    inset: 0;
    z-index: 12000;
    display: grid;
    place-items: center;
}
.invite-records-modal[hidden] {
    display: none !important;
}
.invite-records-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.35);
}
.invite-records-card {
    position: relative;
    width: min(520px, calc(100vw - 32px));
    max-height: calc(100vh - 48px);
    display: flex;
    flex-direction: column;
}
.invite-records-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.invite-records-list {
    padding: 0 16px 16px;
    overflow: auto;
    max-height: 420px;
}
.invite-records-empty {
    margin: 0;
    padding: 24px 0;
    text-align: center;
    color: var(--muted);
    font-size: 0.84rem;
}
.invite-record-row {
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}
.invite-record-row:last-child {
    border-bottom: none;
}
.invite-record-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 4px;
}
.invite-record-email {
    font-size: 0.88rem;
    font-weight: 600;
}
.invite-record-status {
    font-size: 0.75rem;
    color: var(--primary-dark);
    background: var(--primary-soft);
    padding: 2px 8px;
    border-radius: 999px;
}
.invite-record-meta {
    font-size: 0.75rem;
    color: var(--muted);
}

@media (max-width: 720px) {
    .invite-card {
        padding: 20px 18px 18px;
    }
    .invite-stats {
        grid-template-columns: 1fr;
    }
    .invite-stat + .invite-stat {
        border-left: none;
        border-top: 1px solid var(--border);
    }
    .invite-link-row {
        flex-direction: column;
    }
}