/* ============================================================
   go-file 主题「Nebula」— 为 老孙博客 (imsun.org) 定制
   设计语言与博客 nebula 主题一致:
   紫青粉渐变 / 16px 圆角卡片 / 明暗双模式自适应
   自包含样式,不再依赖 bulma.min.css
   ============================================================ */

/* ---------- 设计令牌 ---------- */
:root {
    color-scheme: light dark;

    --bg: #f4f6fb;
    --bg-soft: #eceff7;
    --surface: #ffffff;
    --surface-soft: #f8faff;
    --surface-hover: #f2f5fd;

    --ink: #172136;
    --ink-soft: #3f485c;
    --muted: #657086;
    --faint: #98a2b8;

    --border: rgba(15, 23, 42, .1);
    --border-strong: rgba(15, 23, 42, .17);

    --accent: #4967d8;
    --accent-strong: #3f5fce;
    --accent-soft: rgba(73, 103, 216, .12);
    --grad: linear-gradient(120deg, #7c3aed, #06b6d4 55%, #f472b6);
    /* 按钮专用渐变:整体加深,保证白字对比度 */
    --grad-btn: linear-gradient(120deg, #6d28d9, #2563eb 55%, #db2777);

    --ok: #16a34a;
    --ok-soft: rgba(22, 163, 74, .12);
    --warn: #d97706;
    --danger: #dc2626;
    --danger-soft: rgba(220, 38, 38, .1);

    --radius: 16px;
    --radius-s: 10px;
    --shadow-card: 0 0 0 1px rgba(0, 0, 0, .05), 0 1px 2px -1px rgba(0, 0, 0, .06), 0 18px 42px -18px rgba(30, 36, 54, .16);
    --shadow-pop: 0 12px 40px -8px rgba(15, 23, 42, .25);
    --nav-h: 64px;

    --font-sans: "Alimama FangYuanTi VF", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Courier New", monospace;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #070b14;
        --bg-soft: #0b1120;
        --surface: rgba(13, 19, 34, .82);
        --surface-soft: rgba(19, 28, 47, .6);
        --surface-hover: rgba(255, 255, 255, .06);

        --ink: #e7ecf8;
        --ink-soft: #c3cbdd;
        --muted: #8b95ab;
        --faint: #5d6878;

        --border: rgba(255, 255, 255, .1);
        --border-strong: rgba(255, 255, 255, .16);

        --accent: #5f7de9;
        --accent-strong: #6c88ee;
        --accent-soft: rgba(85, 117, 227, .18);

        --grad-btn: linear-gradient(120deg, #6d28d9, #0e7490 55%, #be185d);

        --shadow-card: 0 0 0 1px rgba(255, 255, 255, .07), 0 18px 48px -12px rgba(0, 0, 0, .45);
        --shadow-pop: 0 16px 48px -8px rgba(0, 0, 0, .6);
    }
}

/* ---------- 基础 ---------- */
* {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background:
        radial-gradient(1100px 460px at 12% -10%, rgba(124, 58, 237, .07), transparent 60%),
        radial-gradient(900px 420px at 95% -6%, rgba(6, 182, 212, .08), transparent 55%),
        var(--bg);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.65;
    overflow-wrap: break-word;
}

body > div:first-of-type:not(.modal) {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 100vh;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color .15s ease;
}

a:hover {
    color: var(--accent-strong);
}

::selection {
    background: rgba(73, 103, 216, .25);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--ink);
    line-height: 1.35;
    margin: 0 0 .5em;
}

img, svg, video {
    max-width: 100%;
}

code {
    font-family: var(--font-mono);
    font-size: .9em;
    background: var(--accent-soft);
    border-radius: 6px;
    padding: .1em .4em;
}

pre code {
    display: block;
    padding: 12px 14px;
    overflow-x: auto;
}

hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 12px 0;
}

/* ---------- 布局 ---------- */
.container {
    width: 100%;
    max-width: 980px;
    margin: 0 auto;
    padding: 0 18px;
}

.normal-container {
    padding: 22px 0 8px;
    flex: 1;
}

.narrow-container {
    padding: 40px 0;
    flex: 1;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    padding: 20px 22px;
}

/* ---------- 顶部导航 ---------- */
.topnav {
    position: sticky;
    top: 0;
    z-index: 900;
    min-height: var(--nav-h);
    background: color-mix(in srgb, var(--surface) 78%, transparent);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}

.topnav-inner {
    min-height: var(--nav-h);
    display: flex;
    align-items: center;
    gap: 18px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--ink);
    white-space: nowrap;
}

.brand:hover {
    color: var(--ink);
}

.brand-mark {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--grad);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 6px 16px -6px rgba(124, 58, 237, .55);
    flex: none;
}

.brand-mark svg {
    width: 19px;
    height: 19px;
}

.nav-menu {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    display: inline-block;
    padding: 7px 14px;
    border-radius: 999px;
    color: var(--ink-soft);
    font-weight: 500;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--accent);
    background: var(--accent-soft);
}

.nav-link.is-current {
    color: var(--accent);
    background: var(--accent-soft);
    font-weight: 600;
}

.nav-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.nav-search {
    position: relative;
    display: flex;
    align-items: center;
    min-width: 0;
}

.nav-search svg {
    position: absolute;
    left: 11px;
    width: 15px;
    height: 15px;
    color: var(--faint);
    pointer-events: none;
}

.nav-search input {
    width: 190px;
    max-width: 100%;
    height: 38px;
    padding: 0 12px 0 33px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--surface-soft);
    color: var(--ink);
    font: inherit;
    font-size: 14px;
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease, width .2s ease;
}

.nav-search input::placeholder {
    color: var(--muted);
    opacity: 1;
}

.nav-search input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
    width: 230px;
}

.nav-upload {
    white-space: nowrap;
}

/* 登录后的用户下拉 */
.nav-user {
    position: relative;
}

.nav-user-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 38px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--surface-soft);
    color: var(--ink);
    font: inherit;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
}

.nav-user-btn svg {
    width: 13px;
    height: 13px;
    color: var(--muted);
    transition: transform .15s ease;
}

.nav-user:hover .nav-user-btn svg,
.nav-user:focus-within .nav-user-btn svg {
    transform: rotate(180deg);
}

.nav-user-menu {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    min-width: 170px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-s);
    box-shadow: var(--shadow-pop);
    padding: 6px;
    display: none;
    z-index: 950;
}

.nav-user:hover .nav-user-menu,
.nav-user:focus-within .nav-user-menu {
    display: block;
}

.nav-user-menu a {
    display: block;
    padding: 9px 12px;
    border-radius: 8px;
    color: var(--ink-soft);
    font-size: 14px;
}

.nav-user-menu a:hover {
    background: var(--surface-hover);
    color: var(--accent);
}

.nav-user-menu hr {
    margin: 6px 4px;
}

/* 移动端汉堡按钮 */
.nav-burger {
    display: none;
    margin-left: auto;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--surface-soft);
    cursor: pointer;
    padding: 0 9px;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
}

.nav-burger span {
    display: block;
    height: 2px;
    border-radius: 2px;
    background: var(--ink-soft);
    transition: transform .2s ease, opacity .2s ease;
}

.nav-burger.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-burger.is-active span:nth-child(2) {
    opacity: 0;
}

.nav-burger.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    height: 38px;
    padding: 0 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    font: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: transform .12s ease, box-shadow .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
    -webkit-user-select: none;
    user-select: none;
}

.btn svg {
    width: 15px;
    height: 15px;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 8px 20px -8px rgba(73, 103, 216, .65);
}

.btn-primary:hover {
    background: var(--accent-strong);
    color: #fff;
}

.btn-grad {
    background: var(--grad-btn);
    color: #fff;
    box-shadow: 0 8px 22px -8px rgba(124, 58, 237, .6);
}

.btn-grad:hover {
    color: #fff;
    filter: brightness(1.06);
}

.btn-outline {
    border-color: var(--border-strong);
    background: var(--surface-soft);
    color: var(--ink-soft);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-ghost {
    background: transparent;
    color: var(--ink-soft);
}

.btn-ghost:hover {
    background: var(--surface-hover);
    color: var(--accent);
}

.btn-danger {
    background: var(--danger-soft);
    color: var(--danger);
}

.btn-danger:hover {
    background: var(--danger);
    color: #fff;
}

.btn[disabled],
.btn.is-disabled {
    opacity: .45;
    pointer-events: none;
}

/* 图标按钮(文件卡片操作区) */
.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 9px;
    border: 1px solid var(--border);
    background: var(--surface-soft);
    color: var(--muted);
    cursor: pointer;
    transition: color .15s ease, border-color .15s ease, background .15s ease, transform .12s ease;
}

.icon-btn svg {
    width: 17px;
    height: 17px;
}

.icon-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-soft);
    transform: translateY(-1px);
}

.icon-btn.is-danger:hover {
    color: var(--danger);
    border-color: var(--danger);
    background: var(--danger-soft);
}

/* ---------- 表单 ---------- */
.field {
    margin-bottom: 16px;
}

.label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--ink-soft);
    margin-bottom: 7px;
}

.input,
.textarea,
.select select {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: var(--radius-s);
    background: var(--surface-soft);
    color: var(--ink);
    font: inherit;
    font-size: 14px;
    padding: 9px 13px;
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease;
}

.input:focus,
.textarea:focus,
.select select:focus,
.input.url-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.input,
.select select {
    height: auto;
    min-height: 42px;
    line-height: 1.5;
}

.input::placeholder,
.textarea::placeholder {
    color: var(--muted);
    opacity: 1;
}

.textarea {
    min-height: 96px;
    resize: vertical;
    line-height: 1.6;
}

.select {
    display: inline-block;
    position: relative;
    width: 100%;
    min-width: 0;
}

.select:not(.is-multiple) {
    height: auto;
}

.select select {
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
}

.select select:not([multiple]) {
    padding-right: 36px;
}

.select select option {
    background: var(--bg-soft);
    color: var(--ink);
}

.select:not(.is-multiple):not(.is-loading)::after {
    content: "";
    position: absolute;
    right: 14px;
    top: 50%;
    width: 7px;
    height: 7px;
    margin-top: 0;
    border: 0;
    border-radius: 0;
    border-right: 2px solid var(--muted);
    border-bottom: 2px solid var(--muted);
    transform: translateY(-70%) rotate(45deg);
    pointer-events: none;
}

.select:not(.is-multiple):not(.is-loading):hover::after {
    border-color: var(--ink-soft);
}

/* Bulma has-addons 形态(main.js 动态生成的内容也走这层) */
.field.has-addons,
.field.is-grouped {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.field.has-addons .control,
.field.is-grouped .control {
    display: flex;
    flex: 1 1 160px;
    min-width: 0;
}

.field.has-addons .control.is-expanded,
.field.is-grouped .control.is-expanded {
    flex: 1 1 240px;
}

.field.has-addons .control .input {
    flex: 1;
    width: auto;
}

.field.has-addons .button,
.field.is-grouped .button,
.field.has-addons .btn,
.field.is-grouped .btn {
    flex: none;
    height: auto;
    min-height: 40px;
}

/* ---------- 文件卡片(首页) ---------- */
.file-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.file-card {
    display: flex;
    gap: 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    padding: 18px 20px;
    transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
    animation: card-in .4s ease backwards;
}

.file-card:hover {
    transform: translateY(-2px);
    border-color: rgba(73, 103, 216, .35);
}

.file-card:nth-child(1) { animation-delay: .02s; }
.file-card:nth-child(2) { animation-delay: .05s; }
.file-card:nth-child(3) { animation-delay: .08s; }
.file-card:nth-child(4) { animation-delay: .11s; }
.file-card:nth-child(5) { animation-delay: .14s; }

@keyframes card-in {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.file-main {
    flex: 1;
    min-width: 0;
}

.nebula-file-name {
    display: inline-block;
    max-width: 100%;
    font-size: 16.5px;
    font-weight: 650;
    color: var(--ink);
    line-height: 1.45;
    word-break: break-all;
}

.nebula-file-name:hover {
    color: var(--accent);
}

.file-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 8px;
    margin-top: 7px;
}

.meta-chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 2.5px 10px;
    border-radius: 999px;
    background: var(--surface-soft);
    border: 1px solid var(--border);
    color: var(--muted);
    font-size: 12.5px;
    white-space: nowrap;
}

.meta-chip svg {
    width: 12px;
    height: 12px;
    flex: none;
}

.file-desc {
    margin: 10px 0 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.7;
}

/* 文件类型徽标:JS 依据扩展名填 data-family 与文本 */
.file-ext {
    flex: none;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .04em;
    color: #fff;
    background: linear-gradient(135deg, #64748b, #334155);
    box-shadow: 0 8px 18px -8px rgba(15, 23, 42, .45);
    align-self: flex-start;
    margin-top: 2px;
}

.file-ext[data-family="archive"] { background: linear-gradient(135deg, #f59e0b, #d97706); }
.file-ext[data-family="image"]  { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.file-ext[data-family="video"]  { background: linear-gradient(135deg, #ec4899, #be185d); }
.file-ext[data-family="audio"]  { background: linear-gradient(135deg, #06b6d4, #0e7490); }
.file-ext[data-family="doc"]    { background: linear-gradient(135deg, #3b82f6, #1d4ed8); }
.file-ext[data-family="code"]   { background: linear-gradient(135deg, #10b981, #047857); }

.file-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: none;
    align-self: center;
}

.dl-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 34px;
    padding: 0 15px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 13.5px;
    font-weight: 650;
    transition: background .15s ease, color .15s ease, transform .12s ease;
}

.dl-btn svg {
    width: 15px;
    height: 15px;
}

.dl-btn:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-1px);
}

/* ---------- 空状态 ---------- */
.empty-state {
    text-align: center;
    padding: 56px 20px 48px;
    background: var(--surface);
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius);
}

.empty-state > .empty-state-icon {
    display: block;
    width: 74px;
    height: 74px;
    margin: 0 auto;
    color: var(--muted);
}

.empty-state .empty-title {
    margin: 14px 0 4px;
    font-size: 17px;
    font-weight: 650;
    color: var(--ink-soft);
}

.empty-state .empty-text {
    margin: 0 0 18px;
    color: var(--muted);
    font-size: 14px;
}

/* ---------- 分页 ---------- */
.pagination {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin: 26px 0 10px;
}

.page-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 40px;
    padding: 0 22px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--ink-soft);
    font-size: 14px;
    font-weight: 550;
    box-shadow: var(--shadow-card);
    transition: color .15s ease, border-color .15s ease, transform .12s ease;
}

.page-btn:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-1px);
}

.page-btn.is-disabled {
    opacity: .45;
    pointer-events: none;
}

/* ---------- 文件管理器(explorer) ---------- */
.explorer-card {
    padding: 6px 0;
    overflow: hidden;
}

.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.explorer-table {
    width: 100%;
    min-width: 560px;
    border-collapse: collapse;
    font-size: 14px;
}

.explorer-table th {
    text-align: left;
    font-size: 12.5px;
    font-weight: 650;
    letter-spacing: .03em;
    color: var(--muted);
    padding: 12px 18px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.explorer-table td {
    padding: 12px 18px;
    border-bottom: 1px solid var(--border);
    color: var(--ink-soft);
    white-space: nowrap;
}

.explorer-table tr:last-child td {
    border-bottom: none;
}

.explorer-table tbody tr {
    transition: background .12s ease;
}

.explorer-table tbody tr:hover {
    background: var(--surface-hover);
}

.cell-name {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.cell-name svg {
    width: 19px;
    height: 19px;
    flex: none;
}

.cell-name .icon-folder { color: #f59e0b; }
.cell-name .icon-file { color: var(--faint); }

.folder-link {
    font-weight: 600;
    color: var(--ink);
}

.folder-link:hover {
    color: var(--accent);
}

.file-link {
    color: var(--ink-soft);
    word-break: break-all;
}

.file-link:hover {
    color: var(--accent);
}

.cell-time {
    color: var(--muted);
    font-size: 13px;
}

.cell-ops {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    vertical-align: middle;
}

.cell-ops .icon-btn {
    width: 30px;
    height: 30px;
    border: none;
    background: transparent;
}

.cell-ops .icon-btn:hover {
    background: var(--accent-soft);
}

/* README 渲染区 */
.readme-card {
    margin-top: 14px;
    line-height: 1.75;
}

.readme-card h1, .readme-card h2, .readme-card h3 {
    border-bottom: 1px solid var(--border);
    padding-bottom: 6px;
}

.readme-card img {
    border-radius: var(--radius-s);
}

.readme-card table {
    border-collapse: collapse;
}

.readme-card table td, .readme-card table th {
    border: 1px solid var(--border);
    padding: 6px 10px;
}

/* ---------- 图床 ---------- */
.dropzone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-align: center;
    min-height: 260px;
    padding: 40px 20px;
    background:
        radial-gradient(500px 200px at 50% 0%, var(--accent-soft), transparent 70%),
        var(--surface);
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius);
    transition: border-color .15s ease, background .15s ease;
}

.dropzone:hover {
    border-color: var(--accent);
}

.dropzone > svg {
    width: 58px;
    height: 58px;
    color: var(--accent);
    opacity: .9;
    margin-bottom: 8px;
}

#imageDropZonePrompt {
    margin: 0;
    font-size: 17px;
    font-weight: 650;
    color: var(--ink);
}

.dropzone-hint {
    margin: 0;
    font-size: 13.5px;
    color: var(--muted);
}

.upload-result {
    margin-top: 14px;
}

.upload-result .url-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}

.upload-result .url-row .input {
    flex: 1 1 240px;
    font-family: var(--font-mono);
    font-size: 13px;
}

/* ---------- 登录页 ---------- */
.auth-wrap {
    max-width: 400px;
    margin: 0 auto;
}

.auth-card {
    padding: 34px 32px 28px;
}

.auth-logo {
    width: 52px;
    height: 52px;
    margin: 0 auto 14px;
    border-radius: 15px;
    background: var(--grad);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 10px 24px -8px rgba(124, 58, 237, .55);
}

.auth-logo svg {
    width: 27px;
    height: 27px;
}

.auth-title {
    text-align: center;
    font-size: 21px;
    margin: 0 0 20px;
}

.auth-actions {
    display: flex;
    gap: 10px;
    margin-top: 22px;
}

.auth-actions .btn {
    flex: 1;
}

/* ---------- 管理后台 ---------- */
.content-tab {
    color: var(--ink);
}

.content-tab h1,
.content-tab h2,
.content-tab h3,
.content-tab h4,
.content-tab h5,
.content-tab h6,
.content-tab strong {
    color: var(--ink);
}

.content-tab .help,
.content-tab .heading {
    color: var(--muted);
}

.content-tab .has-text-grey {
    color: var(--muted) !important;
}

.content-tab .table {
    background: var(--surface-soft);
    color: var(--ink);
}

.content-tab .table th,
.content-tab .table thead td,
.content-tab .table tfoot td {
    color: var(--ink-soft);
}

#statSection > .level,
#statSection .level-right {
    flex-wrap: wrap;
    gap: 12px;
}

#statSection .level-right {
    margin-left: 0;
    min-width: 0;
    max-width: 100%;
}

#statSection .level-right .level-item {
    min-width: 0;
    max-width: 100%;
    margin: 0;
}

#statRangeButtons .button.is-info {
    background: var(--accent-soft);
    border-color: var(--accent);
    color: var(--accent-strong);
}

.tabs {
    border-bottom: 1px solid var(--border);
    margin-bottom: 20px;
}

.tabs ul {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.tabs li a {
    display: inline-block;
    padding: 10px 16px;
    border-bottom: 2px solid transparent;
    color: var(--muted);
    font-weight: 550;
    font-size: 14.5px;
    cursor: pointer;
    transition: color .15s ease, border-color .15s ease;
}

.tabs li a:hover {
    color: var(--accent);
}

.tabs li.is-active a {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.stat-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
}

.stat-chip {
    display: inline-flex;
    align-items: stretch;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border);
    font-size: 13px;
}

.stat-chip .chip-key {
    padding: 6px 12px;
    background: var(--surface-soft);
    color: var(--muted);
    font-weight: 550;
}

.stat-chip .chip-val {
    padding: 6px 12px;
    background: var(--accent-soft);
    color: var(--accent);
    font-weight: 700;
}

.content-tab h3 {
    font-size: 16.5px;
    margin: 22px 0 12px;
}

.content-tab h3:first-child {
    margin-top: 0;
}

.admin-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 34px;
}

.admin-block {
    margin-bottom: 20px;
}

.btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

#reqChart, #urlChart, #ipChart {
    background: var(--surface-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-s);
    margin-top: 14px;
}

/* ---------- 视频页 ---------- */
.video-layout {
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(240px, 1.4fr);
    gap: 18px;
    align-items: start;
}

.video-title {
    font-size: 19px;
    margin: 0 0 12px;
    word-break: break-all;
}

#videoPlayer {
    width: 100%;
    max-height: 72vh;
    border-radius: var(--radius);
    background: #000;
    box-shadow: var(--shadow-card);
    display: block;
}

.playlist-card {
    padding: 14px 8px 14px 0;
}

.playlist-title {
    font-size: 14px;
    font-weight: 650;
    color: var(--muted);
    padding: 0 0 10px 18px;
    border-bottom: 1px solid var(--border);
}

.video-sidebar {
    max-height: 62vh;
    overflow-y: auto;
    padding-left: 10px;
}

.playlist-item {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px 10px;
    border-radius: var(--radius-s);
    color: var(--ink-soft);
    font-size: 13.5px;
    line-height: 1.5;
    cursor: pointer;
    transition: background .12s ease, color .12s ease;
}

.playlist-item svg {
    width: 16px;
    height: 16px;
    flex: none;
}

.playlist-item:hover {
    background: var(--accent-soft);
    color: var(--accent);
}

.playlist-item .icon-folder { color: #f59e0b; }

/* ---------- 帮助页 ---------- */
.help-title {
    font-size: 19px;
    margin-bottom: 14px;
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    width: fit-content;
}

.prose h4 {
    margin: 20px 0 8px;
    font-size: 15.5px;
}

.prose ul {
    margin: 0;
    padding-left: 20px;
    color: var(--ink-soft);
}

.prose li {
    margin-bottom: 6px;
}

.prose .del {
    color: var(--faint);
}

/* ---------- 提示条(messageToast) ---------- */
.message {
    display: block;
    border-radius: var(--radius-s);
    border: 1px solid var(--border);
    background: var(--surface);
    padding: 13px 16px;
    margin-bottom: 16px;
    font-size: 14px;
    color: var(--ink-soft);
}

.message.is-danger {
    border-color: rgba(220, 38, 38, .35);
    background: var(--danger-soft);
    color: var(--danger);
    font-weight: 550;
}

.message .message-body {
    padding: 0;
}

/* ---------- Toast(#toast) ---------- */
#toast {
    visibility: hidden;
    display: block;
    flex: none;
    min-height: 0;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 34px;
    z-index: 99999;
    width: fit-content;
    max-width: min(86vw, 480px);
    margin: 0 auto;
    padding: 12px 22px;
    border-radius: 999px;
    background: rgba(23, 33, 54, .94);
    color: #f5f7ff;
    font-size: 14px;
    line-height: 1.5;
    overflow-wrap: anywhere;
    text-align: center;
    box-shadow: var(--shadow-pop);
    pointer-events: none;
}

#toast.is-success {
    border-left: none;
}

#toast.is-danger {
    background: rgba(153, 27, 27, .95);
}

#toast.show {
    visibility: visible;
    animation: toast-in .35s ease, toast-out .4s ease 2.5s;
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateY(14px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes toast-out {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(14px);
    }
}

/* ---------- 进度条 ---------- */
progress.progress {
    appearance: none;
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    border: none;
    border-radius: 999px;
    overflow: hidden;
    background: var(--bg-soft);
    display: block;
}

progress.progress::-webkit-progress-bar {
    background: var(--bg-soft);
    border-radius: 999px;
}

progress.progress::-webkit-progress-value {
    background: var(--grad);
    border-radius: 999px;
    transition: width .2s ease;
}

progress.progress::-moz-progress-bar {
    background: var(--accent);
    border-radius: 999px;
}

.upload-card {
    margin-bottom: 16px;
}

.upload-card .page-card-title,
.upload-card .upload-status {
    font-size: 15px;
    font-weight: 650;
    color: var(--ink-soft);
    margin-bottom: 10px;
}

.upload-detail {
    margin-top: 10px;
    font-size: 13px;
    color: var(--muted);
    font-family: var(--font-mono);
}

/* ---------- 公告浮层 ---------- */
#notice {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 800;
    width: min(23rem, calc(100vw - 32px));
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-pop);
    padding: 18px 18px 16px;
    animation: card-in .35s ease;
}

#notice .notice-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 8px;
}

#notice .notice-title svg {
    width: 17px;
    height: 17px;
    color: var(--warn);
}

#notice .notice-body {
    color: var(--ink-soft);
    font-size: 14px;
    padding-bottom: 14px;
}

#notice .notice-ok {
    float: right;
    height: 32px;
    padding: 0 16px;
    font-size: 13px;
}

/* ---------- 模态框 ---------- */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
}

.modal.is-active {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-background {
    position: absolute;
    inset: 0;
    background: rgba(7, 11, 20, .55);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
}

.modal-content {
    position: relative;
    width: 100%;
    max-width: 560px;
    max-height: 86vh;
    overflow-y: auto;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-pop);
    padding: 24px;
    animation: modal-in .22s ease;
}

@keyframes modal-in {
    from {
        opacity: 0;
        transform: translateY(14px) scale(.98);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--muted);
    font-size: 17px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--surface-hover);
    color: var(--danger);
}

.modal-title {
    font-size: 16.5px;
    font-weight: 700;
    color: var(--ink);
    margin: 0 0 16px;
    padding-right: 30px;
    word-break: break-all;
}

.modal-text {
    color: var(--ink-soft);
    font-size: 14.5px;
}

/* 上传对话框 */
.upload-drop-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 26px 16px;
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius-s);
    color: var(--muted);
    font-size: 14px;
    margin-bottom: 18px;
    transition: border-color .15s ease, background .15s ease;
}

.upload-drop-hint svg {
    width: 24px;
    height: 24px;
    color: var(--accent);
    flex: none;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 18px;
}

/* 二维码弹窗 */
#qrcodeModal .modal-content {
    max-width: 250px;
    width: auto;
    text-align: center;
}

#qrcode {
    display: block;
    margin: 4px auto 0;
    border-radius: 10px;
}

/* 预览弹窗 */
.center-container {
    display: flex;
    align-items: center;
    justify-content: center;
}

.center-container audio {
    width: 100%;
}

.center-container iframe {
    border: none;
    border-radius: 10px;
    background: #fff;
}

/* ---------- 页脚 ---------- */
.site-footer {
    margin-top: 40px;
    border-top: 1px solid var(--border);
    padding: 22px 0 26px;
    background: var(--surface-soft);
}

.site-footer .footer-inner {
    text-align: center;
    font-size: 13.5px;
    color: var(--muted);
}

.site-footer p {
    margin: 0;
}

/* ---------- Bulma 兼容层 ----------
   main.js 与管理页脚本会动态生成 Bulma 风格的标记
   (如上传结果行、配置项、新版本下载按钮),以下样式保证它们融入新主题。 */
.box {
    background: var(--surface);
    color: var(--ink);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    padding: 20px 22px;
}

.media {
    display: flex;
    min-width: 0;
}

.media-content {
    flex: 1;
    min-width: 0;
}

.content {
    min-width: 0;
    width: 100%;
}

.title, .subtitle {
    color: var(--ink);
    font-weight: 700;
}

.title.is-5, .subtitle.is-5 {
    font-size: 16px;
    margin: 0 0 10px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    height: 38px;
    padding: 0 18px;
    border-radius: 999px;
    border: 1px solid var(--border-strong);
    background: var(--surface-soft);
    color: var(--ink-soft);
    font: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: background .15s ease, color .15s ease, border-color .15s ease;
    -webkit-user-select: none;
    user-select: none;
}

.button:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.button.is-light {
    background: var(--surface-soft);
    border-color: var(--border);
    color: var(--ink-soft);
}

.button.is-loading {
    color: transparent !important;
    pointer-events: none;
    position: relative;
}

.button.is-loading::after {
    content: "";
    position: absolute;
    width: 15px;
    height: 15px;
    border: 2px solid var(--accent);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin .6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: 999px;
    background: var(--surface-soft);
    border: 1px solid var(--border);
    color: var(--muted);
    font-size: 12.5px;
    white-space: nowrap;
}

.tags {
    display: inline-flex;
}

.tags.has-addons .tag {
    border-radius: 0;
}

.tags.has-addons .tag:first-child {
    border-radius: 999px 0 0 999px;
    border-right: none;
    background: var(--surface-soft);
}

.tags.has-addons .tag:last-child {
    border-radius: 0 999px 999px 0;
    background: var(--accent-soft);
    color: var(--accent);
    font-weight: 650;
}

.tags.has-addons .tag.is-dark:first-child {
    background: var(--surface-soft);
    color: var(--muted);
}

.tags.has-addons .tag.is-info:last-child { color: #0e7490; background: rgba(6, 182, 212, .14); }
.tags.has-addons .tag.is-success:last-child { color: #166534; background: var(--ok-soft); }
.tags.has-addons .tag.is-primary:last-child { color: var(--accent-strong); background: var(--accent-soft); }

@media (prefers-color-scheme: dark) {
    .tags.has-addons .tag.is-info:last-child { color: #67e8f9; }
    .tags.has-addons .tag.is-success:last-child { color: #86efac; }
}

.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.table th, .table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    text-align: left;
}

.table.is-hoverable tbody tr:not(.is-selected):hover {
    background: var(--surface-hover);
}

.columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.column {
    min-width: 0;
}

.center-container h2 {
    font-size: 20px;
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: 999px;
    border: 2px solid transparent;
    background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--faint);
}

.hide-scrollbar::-webkit-scrollbar,
.modal-content::-webkit-scrollbar,
.video-sidebar::-webkit-scrollbar {
    display: none;
}

.hide-scrollbar,
.modal-content,
.video-sidebar {
    scrollbar-width: none;
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
    .video-layout {
        grid-template-columns: 1fr;
    }

    .admin-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-burger {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: var(--nav-h);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        margin: 0 12px;
        padding: 14px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        box-shadow: var(--shadow-pop);
    }

    .nav-menu.is-active {
        display: flex;
    }

    .topnav {
        position: relative;
    }

    .nav-links {
        flex-direction: column;
        align-items: stretch;
    }

    .nav-link {
        padding: 11px 14px;
        border-radius: var(--radius-s);
    }

    .nav-actions {
        margin-left: 0;
        flex-direction: column;
        align-items: stretch;
    }

    .nav-search input,
    .nav-search input:focus {
        width: 100%;
    }

    .nav-user-menu {
        position: static;
        display: block;
        box-shadow: none;
        border: none;
        background: transparent;
        padding: 0 0 0 10px;
    }

    .topnav-inner {
        gap: 10px;
    }

    .file-card {
        flex-wrap: wrap;
        padding: 16px;
    }

    .file-ext {
        width: 44px;
        height: 44px;
        border-radius: 12px;
        font-size: 10px;
    }

    .file-actions {
        width: 100%;
        justify-content: flex-end;
        padding-top: 4px;
    }

    .dl-btn {
        margin-left: auto;
    }

    .columns {
        grid-template-columns: 1fr;
    }

    .pagination {
        flex-wrap: wrap;
    }

    .page-btn {
        flex: 1;
        justify-content: center;
        padding: 0 14px;
    }

    .normal-container {
        padding-top: 16px;
    }

    .card {
        padding: 16px;
    }

    #notice {
        right: 12px;
        bottom: 12px;
        width: calc(100vw - 24px);
    }

    .modal.is-active {
        padding: 12px;
        align-items: flex-end;
    }

    .modal-content {
        max-width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
}

/* ============================================================
   classic 基础样式覆盖层
   theme-nebula.css 加载于 bulma.min.css 与 app.css 之后,
   以下规则抵消基础样式中会渗入 Nebula 页面的部分
   (注意部分基础规则带 id / 更高特异性,必须用同特异性覆盖)
   ============================================================ */

/* classic: nav { margin-bottom: 16px } */
nav.topnav {
    margin-bottom: 0;
}

/* classic 隐藏了 body 滚动条,Nebula 恢复显示 */
body::-webkit-scrollbar {
    display: block;
    width: 10px;
}

/* classic: .pagination a { border: none } 特异性更高,会去掉分页按钮边框 */
.pagination a.page-btn {
    border: 1px solid var(--border);
    overflow: visible;
}

.pagination a.page-btn:hover {
    border-color: var(--accent);
}

/* classic: #searchInput:focus 的灰色阴影 */
#searchInput:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

/* classic: #imageDropZone 的内边距与虚线框 */
#imageDropZone {
    padding: 40px 20px;
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius);
    min-height: 260px;
}

/* classic: .box .article 白底大字号(公告/进度等基础页面复用) */
.box .article {
    background: transparent;
    padding: 0;
    margin: 0;
    font-size: inherit;
    line-height: inherit;
}

/* 屏幕阅读器专用(mirrors Bulma 的 .is-sr-only) */
.is-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* text-copy 页面(与主站共享 header,由本主题负责样式) */
.textcopy-shell {
    min-height: 100vh;
    max-width: 760px;
    margin: 0 auto;
    padding: 26px 18px 30px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.textcopy-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.textcopy-head h1 {
    margin: 0 0 4px;
    font-size: 21px;
}

.textcopy-head p {
    margin: 0;
    color: var(--muted);
    font-size: 13.5px;
}

.textcopy-area {
    flex: 1;
    min-height: 50vh;
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.7;
}