/* 页面会嵌入系统小工具；根级通用规则必须止于侧栏边界，不能改写小工具内部。 */
.powell-flash-pc-page,
.powell-flash-pc-page *:not(.powell-flash-pc-widget-sidebar, .powell-flash-pc-widget-sidebar *) {
    box-sizing: border-box;
}

.powell-flash-pc-page {
    min-height: 100%;
    color: var(--ls-text);
}

.powell-flash-pc-page :is(h1, h2, h3, strong, b):not(.powell-flash-pc-widget-sidebar *) {
    font-weight: 400;
}

.powell-flash-pc-shell {
    padding-top: 16px;
}

.powell-flash-pc-loading,
.powell-flash-pc-error,
.powell-flash-pc-login {
    padding: 64px 24px;
    text-align: center;
}

.powell-flash-pc-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 16px;
}

.powell-flash-pc-topbar nav {
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 4px;
    color: var(--ls-text-secondary);
    font-size: 13px;
}

.powell-flash-pc-topbar nav a:hover {
    color: var(--ls-primary);
}

.powell-flash-pc-topbar-actions {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.powell-flash-pc-content-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 20px;
    align-items: start;
}

.powell-flash-pc-content-main {
    min-width: 0;
}

.powell-flash-pc-widget-sidebar {
    min-width: 0;
}

.powell-flash-pc-btn {
    display: inline-flex;
    min-height: 40px;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 0 16px;
    border: 1px solid var(--ls-border);
    border-radius: var(--ls-radius-lg);
    background: var(--ls-card-bg);
    color: var(--ls-text);
    font: inherit;
    font-weight: 400;
    cursor: pointer;
    transition: border-color var(--ls-transition), background-color var(--ls-transition), color var(--ls-transition);
}

.powell-flash-pc-btn.is-primary {
    border-color: var(--ls-primary);
    background: var(--ls-primary);
    color: var(--ls-card-bg);
}

.powell-flash-pc-btn:not(:disabled):hover {
    border-color: var(--ls-primary);
    background: var(--ls-primary-light);
    color: var(--ls-primary);
}

.powell-flash-pc-btn.is-primary:not(:disabled):hover {
    border-color: var(--ls-primary-hover);
    background: var(--ls-primary-hover);
    color: var(--ls-card-bg);
}

.powell-flash-pc-btn:disabled {
    cursor: not-allowed;
    opacity: .48;
}

.powell-flash-pc-page :is(a, button, input, textarea):focus-visible:not(.powell-flash-pc-widget-sidebar *) {
    outline: 0;
    outline-offset: 2px;
    box-shadow: none;
}

.powell-flash-pc-panel {
    padding: 8px 30px 32px;
    border: 1px solid var(--ls-border);
    border-radius: 14px;
    background: var(--ls-card-bg);
}

.powell-flash-pc-detail h1,
.powell-flash-pc-form h1 {
    margin: 0;
    color: var(--ls-text);
}

.powell-flash-pc-timeline {
    padding-top: 4px;
    animation: powell-flash-pc-timeline-in 220ms cubic-bezier(.16, 1, .3, 1) both;
}

.powell-flash-pc-new-items {
    position: sticky;
    top: 16px;
    z-index: 3;
    display: flex;
    justify-content: center;
    padding: 8px 0 4px;
}

.powell-flash-pc-new-items button {
    display: inline-flex;
    min-height: 40px;
    align-items: center;
    gap: 7px;
    padding: 0 16px;
    border: 1px solid color-mix(in srgb, var(--ls-primary) 38%, var(--ls-border));
    border-radius: 10px;
    background: var(--ls-card-bg);
    color: var(--ls-primary);
    font-size: 14px;
    font-weight: 400;
    cursor: pointer;
    transition: background-color 160ms ease, border-color 160ms ease, transform 160ms cubic-bezier(.16, 1, .3, 1);
}

.powell-flash-pc-new-items button:hover {
    border-color: var(--ls-primary);
    background: var(--ls-primary-light);
    transform: translateY(-1px);
}

.powell-flash-pc-new-items button:active {
    transform: translateY(0);
}

.powell-flash-pc-new-items button:focus-visible {
    outline: 2px solid color-mix(in srgb, var(--ls-primary) 46%, transparent);
    outline-offset: 2px;
}

.powell-flash-pc-new-items i {
    font-size: 16px;
}

@keyframes powell-flash-pc-timeline-in {
    from { clip-path: inset(0 0 12% 0); }
    to { clip-path: inset(0); }
}

.powell-flash-pc-day > h2 {
    position: relative;
    margin: 0 0 0 16px;
    padding: 24px 0 14px 26px;
    border-left: 1px dashed color-mix(in srgb, var(--ls-primary) 28%, var(--ls-border));
    font-size: 20px;
    font-weight: 400;
}

.powell-flash-pc-day > h2 > span {
    position: absolute;
    top: 29px;
    left: -8px;
    width: 16px;
    height: 16px;
    border-radius: 4px;
    background: color-mix(in srgb, var(--ls-primary) 62%, var(--ls-card-bg));
}

.powell-flash-pc-item {
    display: block;
    margin-left: 16px;
    padding-left: 26px;
    border-left: 1px dashed color-mix(in srgb, var(--ls-primary) 28%, var(--ls-border));
}

.powell-flash-pc-item > time {
    position: relative;
    display: block;
    padding-top: 20px;
    color: color-mix(in srgb, var(--ls-primary) 60%, var(--ls-text));
    font-size: 14px;
    font-weight: 400;
    line-height: 1.4;
}

.powell-flash-pc-item > time::before {
    position: absolute;
    box-sizing: content-box;
    top: 23px;
    left: -32px;
    width: 4px;
    height: 4px;
    border: 4px solid var(--ls-primary);
    border-radius: 50%;
    background: var(--ls-card-bg);
    content: "";
}

.powell-flash-pc-item-body {
    min-width: 0;
    padding: 10px 0 22px;
    border-bottom: 1px solid var(--ls-border);
}

.powell-flash-pc-item-body h2 {
    margin: 0 0 12px;
    font-size: 18px;
    line-height: 1.45;
}

.powell-flash-pc-item-body h2 a:hover {
    color: var(--ls-primary);
}

.powell-flash-pc-item-summary {
    margin: 0;
    color: var(--ls-text-secondary);
    font-size: 15px;
    line-height: 1.75;
    overflow-wrap: anywhere;
}

.powell-flash-pc-item-summary > a:first-child {
    color: var(--ls-text-secondary);
}

.powell-flash-pc-item-summary > a:first-child:hover {
    color: var(--ls-text);
}

.powell-flash-pc-inline-source {
    margin-left: 6px;
    color: var(--ls-text-secondary);
}

.powell-flash-pc-inline-source a {
    color: var(--ls-primary);
}

.powell-flash-pc-cover {
    display: block;
    width: min(520px, 100%);
    margin-top: 14px;
    padding: 0;
    overflow: hidden;
    border: 0;
    border-radius: 12px;
    background: var(--ls-bg);
    cursor: zoom-in;
}

.powell-flash-pc-cover img {
    display: block;
    width: 100%;
    max-height: 320px;
    object-fit: cover;
    transition: opacity var(--ls-transition);
}

.powell-flash-pc-cover:hover img {
    opacity: .88;
}

.powell-flash-pc-item-body footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-top: 16px;
    color: var(--ls-text-secondary);
    font-size: 13px;
}

.powell-flash-pc-item-poster {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 0;
    border: 0;
    background: transparent;
    color: inherit;
    cursor: pointer;
}

.powell-flash-pc-item-poster:hover {
    color: var(--ls-primary);
}

.powell-flash-pc-share-platforms {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 6px;
}

.powell-flash-pc-share-platforms > span {
    margin-right: 2px;
    color: var(--ls-text-secondary);
    font-size: 12px;
}

.powell-flash-pc-share-platforms button {
    display: grid;
    width: 30px;
    height: 30px;
    padding: 0;
    place-items: center;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--ls-text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: background-color var(--ls-transition), opacity var(--ls-transition);
}

.powell-flash-pc-share-platforms button:hover {
    background: var(--ls-primary-light);
    opacity: .76;
}

/* domain-palette: 第三方分享平台图标遵循各平台官方识别色。 */
.powell-flash-pc-share-platforms .is-wechat { color: #07c160; }
.powell-flash-pc-share-platforms .is-qzone { color: #f5a623; }
.powell-flash-pc-share-platforms .is-qq { color: #4c8bf5; }
.powell-flash-pc-share-platforms .is-weibo { color: #ff5d5d; }
.powell-flash-pc-share-platforms .is-telegram { color: #2aabee; }

.powell-flash-pc-wechat-share {
    display: grid;
    justify-items: center;
    gap: 10px;
    padding: 10px 0;
    color: var(--ls-text-secondary);
    font-size: 12px;
}

.powell-flash-pc-wechat-share img {
    display: block;
    width: 180px;
    height: 180px;
}

.powell-flash-pc-more {
    padding-top: 24px;
    text-align: center;
}

.powell-flash-pc-end {
    margin: 0;
    padding-top: 24px;
    color: var(--ls-text-secondary);
    font-size: 13px;
    text-align: center;
}

.powell-flash-pc-empty {
    padding: 80px 24px;
    color: var(--ls-text-secondary);
    text-align: center;
}

.powell-flash-pc-empty i {
    color: var(--ls-primary);
    font-size: 34px;
}

.powell-flash-pc-empty h2,
.powell-flash-pc-empty p {
    margin: 10px 0 0;
}

.powell-flash-pc-detail {
    padding: 38px 54px 32px;
    border: 1px solid var(--ls-border);
    border-radius: 14px;
    background: var(--ls-card-bg);
}

.powell-flash-pc-detail h1 {
    font-size: 32px;
    line-height: 1.38;
    overflow-wrap: anywhere;
}

.powell-flash-pc-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 14px;
    margin-top: 16px;
    color: var(--ls-text-secondary);
    font-size: 14px;
}

.powell-flash-pc-detail-meta a {
    color: var(--ls-primary);
}

.powell-flash-pc-detail-meta a:hover {
    text-decoration: underline;
}

.powell-flash-pc-detail-content {
    width: 100%;
    min-width: 0;
    margin-top: 30px;
    color: var(--ls-text);
    font-size: 18px;
    line-height: 2.05;
    text-align: justify;
    overflow-wrap: anywhere;
}

.powell-flash-pc-detail-content > p {
    margin: 0;
}

.powell-flash-pc-gallery {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    justify-items: center;
    gap: 16px;
    margin-top: 28px;
}

.powell-flash-pc-gallery button {
    display: block;
    width: fit-content;
    max-width: 80%;
    padding: 0;
    overflow: hidden;
    border: 0;
    border-radius: 12px;
    background: var(--ls-bg);
    cursor: zoom-in;
}

.powell-flash-pc-gallery img {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    transition: opacity var(--ls-transition);
}

.powell-flash-pc-gallery button:hover img {
    opacity: .88;
}

.powell-flash-pc-statement {
    display: grid;
    gap: 8px;
    margin-top: 28px;
    padding-top: 18px;
    border-top: 1px solid var(--ls-border);
    color: var(--ls-text-secondary);
    font-size: 12px;
    line-height: 1.7;
}

.powell-flash-pc-statement strong {
    color: var(--ls-text-secondary);
}

.powell-flash-pc-detail-share-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 26px;
}

.powell-flash-pc-publish-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    align-items: start;
}

.powell-flash-pc-form {
    padding: 26px;
    border: 1px solid var(--ls-border);
    border-radius: 14px;
    background: var(--ls-card-bg);
}

.powell-flash-pc-form > label {
    display: grid;
    gap: 8px;
    margin-top: 20px;
}

.powell-flash-pc-form label > span {
    font-size: 14px;
    font-weight: 400;
}

.powell-flash-pc-form input[type="text"],
.powell-flash-pc-form input[type="url"],
.powell-flash-pc-form textarea {
    width: 100%;
    min-height: 42px;
    padding: 9px 12px;
    border: 1px solid var(--ls-border);
    border-radius: 10px;
    background: var(--ls-card-bg);
    color: var(--ls-text);
    font: inherit;
    line-height: 1.65;
    resize: vertical;
}

.powell-flash-pc-form :is(input, textarea):focus {
    border-color: var(--ls-primary);
    outline: 0;
    box-shadow: none;
}

.powell-flash-pc-form :is(input, textarea)::placeholder {
    color: var(--ls-text-secondary);
    font-size: 13px;
    opacity: 1;
}

.powell-flash-pc-form fieldset {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 32px;
    padding: 0;
    border: 0;
}

.powell-flash-pc-form legend {
    grid-column: 1 / -1;
    padding-bottom: 10px;
    font-size: 14px;
    font-weight: 400;
}

.powell-flash-pc-choice {
    position: relative;
    display: flex;
    align-items: flex-start;
    gap: 9px;
    padding: 12px;
    border: 1px solid var(--ls-border);
    border-radius: 11px;
    background: var(--ls-card-bg);
    cursor: pointer;
    transition: border-color var(--ls-transition), background-color var(--ls-transition), color var(--ls-transition);
}

.powell-flash-pc-choice input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.powell-flash-pc-choice:hover {
    border-color: color-mix(in srgb, var(--ls-primary) 44%, var(--ls-border));
    background: color-mix(in srgb, var(--ls-primary) 4%, var(--ls-card-bg));
}

.powell-flash-pc-choice:has(input:checked) {
    border-color: var(--ls-primary);
    color: var(--ls-primary);
    background: var(--ls-primary-light);
}

.powell-flash-pc-choice > i {
    display: grid;
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    place-items: center;
    border-radius: 9px;
    background: color-mix(in srgb, var(--ls-primary) 8%, var(--ls-card-bg));
    color: var(--ls-text-secondary);
    font-size: 18px;
    transition: background-color var(--ls-transition), color var(--ls-transition);
}

.powell-flash-pc-choice:hover > i {
    color: var(--ls-primary);
}

.powell-flash-pc-choice:has(input:checked) > i {
    background: var(--ls-primary);
    color: var(--ls-card-bg);
}

.powell-flash-pc-choice:has(input:focus-visible) {
    outline: 2px solid color-mix(in srgb, var(--ls-primary) 42%, transparent);
    outline-offset: 2px;
}

.powell-flash-pc-choice span {
    display: grid;
    min-width: 0;
    align-self: center;
    gap: 3px;
}

.powell-flash-pc-choice small {
    color: var(--ls-text-secondary);
    font-size: 12px;
    font-weight: 400;
}

.powell-flash-pc-source-fields {
    display: grid;
    grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr);
    gap: 8px;
    margin-top: 20px;
}

.powell-flash-pc-source-fields label {
    display: grid;
    gap: 8px;
}

.powell-flash-pc-source-presets {
    display: flex;
    grid-column: 1 / -1;
    min-width: 0;
    align-items: flex-start;
    gap: 10px;
}

.powell-flash-pc-source-presets-label {
    flex: 0 0 auto;
    padding-top: 7px;
    color: var(--ls-text-secondary);
    font-size: 13px;
    line-height: 1.5;
}

.powell-flash-pc-source-presets > div {
    display: flex;
    min-width: 0;
    flex-wrap: wrap;
    gap: 7px;
}

.powell-flash-pc-source-presets button {
    min-height: 34px;
    padding: 0 12px;
    border: 1px solid var(--ls-border);
    border-radius: 999px;
    background: var(--ls-card-bg);
    color: var(--ls-text-secondary);
    font-size: 14px;
    font-weight: 400;
    line-height: 1.4;
    overflow-wrap: anywhere;
    cursor: pointer;
    transition: border-color 150ms ease, background-color 150ms ease, color 150ms ease;
}

.powell-flash-pc-source-presets button:hover {
    border-color: var(--ls-primary);
    background: var(--ls-primary-light);
    color: var(--ls-primary);
}

.powell-flash-pc-source-presets button:focus-visible {
    outline: 2px solid color-mix(in srgb, var(--ls-primary) 46%, transparent);
    outline-offset: 2px;
}

.powell-flash-pc-author-field[hidden],
.powell-flash-pc-source-fields[hidden] {
    display: none;
}

.powell-flash-pc-upload {
    display: grid;
    gap: 16px;
    margin-top: 20px;
    padding-top: 28px;
    border-top: 1px solid var(--ls-border);
}

.powell-flash-pc-upload > div:first-child {
    display: flex;
    justify-content: space-between;
    color: var(--ls-text-secondary);
    font-size: 13px;
}

.powell-flash-pc-upload > div:first-child strong {
    color: var(--ls-text);
    font-size: 14px;
}

.powell-flash-pc-upload-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, 112px);
    gap: 10px;
}

.powell-flash-pc-upload-add {
    display: grid;
    width: 112px;
    aspect-ratio: 1;
    place-content: center;
    justify-items: center;
    gap: 7px;
    padding: 10px;
    border: 1px dashed var(--ls-border);
    border-radius: 10px;
    color: var(--ls-text-secondary);
    background: color-mix(in srgb, var(--ls-primary) 5%, var(--ls-card-bg));
    font: inherit;
    font-size: 13px;
    font-weight: 400;
    cursor: pointer;
}

.powell-flash-pc-upload-add i {
    color: var(--ls-primary);
    font-size: 24px;
}

.powell-flash-pc-upload-add:hover {
    border-color: var(--ls-primary);
    color: var(--ls-primary);
    background: var(--ls-primary-light);
}

.powell-flash-pc-upload-add:disabled {
    cursor: not-allowed;
    opacity: .5;
}

.powell-flash-pc-upload-list figure {
    position: relative;
    aspect-ratio: 1;
    margin: 0;
    overflow: hidden;
    border-radius: 10px;
    background: var(--ls-bg);
}

.powell-flash-pc-upload-list img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.powell-flash-pc-upload-list figure button {
    position: absolute;
    top: 6px;
    right: 6px;
    display: grid;
    width: 28px;
    height: 28px;
    padding: 0;
    place-items: center;
    border: 0;
    border-radius: 8px;
    background: color-mix(in srgb, var(--ls-text) 72%, transparent);
    color: var(--ls-card-bg);
    cursor: pointer;
    transition: background-color var(--ls-transition);
}

.powell-flash-pc-upload-list figure button:hover {
    background: var(--ls-primary);
}

.powell-flash-pc-form > footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 24px;
    font-size: 14px;
}

.powell-flash-pc-publish-success {
    margin: 12px 0 0;
    padding: 10px 12px;
    border: 1px solid color-mix(in srgb, var(--ls-primary) 45%, var(--ls-border));
    border-radius: 9px;
    background: var(--ls-primary-light);
    color: var(--ls-primary);
    font-size: 13px;
    line-height: 1.6;
}

@media (prefers-reduced-motion: reduce) {
    .powell-flash-pc-timeline { animation: none; }
}