/* ==========================================================================
   Songboard app.css — 设计令牌 + 通用组件 + 后台布局（手写，无任何外部依赖）
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root {
    --sb-primary: #f79ab5;
    --sb-accent: #fbd0dd;
    --sb-bg: #fff5f8;
    --sb-card: #ffffff;
    --sb-text: #5a4a52;
    --sb-subtext: #a58a96;
    --sb-danger: #e8798f;
    --sb-radius: 20px;
    --sb-radius-sm: 14px;
    --sb-font: 'Varela Round', '幼圆', 'YouYuan', 'Yuanti SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --sb-shadow: 0 6px 24px rgba(247, 154, 181, .16);
    --sb-shadow-lg: 0 18px 48px rgba(90, 74, 82, .22);
    --sb-line: #f6e2ea;
}

/* ---------- reset 补充 ---------- */
*, *::before, *::after { box-sizing: border-box; }
/* hidden 属性必须赢过任何作者样式里的 display（否则 JS 的 el.hidden 会被
   .board-song{display:flex} 之类覆盖而失效） */
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: var(--sb-font);
    font-size: 14px;
    line-height: 1.6;
    color: var(--sb-text);
    background: var(--sb-bg);
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }
img, svg { max-width: 100%; display: inline-block; vertical-align: middle; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--sb-primary); }
input[type="checkbox"], input[type="radio"] { accent-color: var(--sb-primary); }
::selection { background: var(--sb-accent); color: var(--sb-text); }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--sb-accent); border-radius: 999px; border: 2px solid var(--sb-bg); }
::-webkit-scrollbar-track { background: transparent; }
.sb-no-scroll { overflow: hidden; }

/* ---------- 按钮 ---------- */
.sb-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 22px;
    border: none;
    border-radius: 999px;
    background: var(--sb-primary);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
    text-decoration: none;
    cursor: pointer;
    white-space: nowrap;
    box-shadow: 0 4px 14px rgba(247, 154, 181, .35);
    transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, color .18s ease;
    -webkit-tap-highlight-color: transparent;
}
.sb-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(247, 154, 181, .45); }
.sb-btn:active { transform: translateY(0) scale(.97); }
.sb-btn:focus-visible { outline: 3px solid var(--sb-accent); outline-offset: 2px; }
.sb-btn--ghost {
    background: transparent;
    color: var(--sb-primary);
    border: 2px solid var(--sb-accent);
    box-shadow: none;
}
.sb-btn--ghost:hover { background: rgba(251, 208, 221, .3); box-shadow: 0 6px 16px rgba(247, 154, 181, .22); }
.sb-btn--sm { padding: 6px 14px; font-size: 13px; }
.sb-btn--danger { background: var(--sb-danger); box-shadow: 0 4px 14px rgba(232, 121, 143, .35); }
.sb-btn--danger:hover { box-shadow: 0 8px 20px rgba(232, 121, 143, .45); }
.sb-btn--ghost.sb-btn--danger { background: transparent; color: var(--sb-danger); border-color: rgba(232, 121, 143, .45); box-shadow: none; }
.sb-btn--ghost.sb-btn--danger:hover { background: rgba(232, 121, 143, .1); }
.sb-btn:disabled, .sb-btn[aria-disabled="true"] {
    opacity: .55;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ---------- 卡片 ---------- */
.sb-card {
    background: var(--sb-card);
    border: 1px solid rgba(251, 208, 221, .5);
    border-radius: var(--sb-radius);
    box-shadow: var(--sb-shadow);
    padding: 22px;
}

/* ---------- 页头/表单排版小工具 ---------- */
.sb-page-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 20px; }
.sb-page-head .sb-page-head__spacer { flex: 1; }
.sb-page-title { font-size: 21px; font-weight: 700; }
.sb-field { margin-bottom: 16px; }
.sb-label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.sb-hint { display: block; font-size: 12px; color: var(--sb-subtext); margin-top: 5px; }
.field-error { display: block; color: var(--sb-danger); font-size: 12.5px; margin-top: 6px; }

/* ---------- 表单控件 ---------- */
.sb-input, .sb-select, .sb-textarea {
    width: 100%;
    padding: 10px 16px;
    border: 2px solid var(--sb-accent);
    border-radius: var(--sb-radius-sm);
    background: #fff;
    color: var(--sb-text);
    font-size: 14px;
    line-height: 1.5;
    transition: border-color .18s ease, box-shadow .18s ease;
}
.sb-input:focus, .sb-select:focus, .sb-textarea:focus {
    outline: none;
    border-color: var(--sb-primary);
    box-shadow: 0 0 0 4px rgba(247, 154, 181, .18);
}
.sb-input::placeholder, .sb-textarea::placeholder { color: var(--sb-subtext); opacity: .75; }
.sb-input.is-invalid, .sb-select.is-invalid, .sb-textarea.is-invalid { border-color: var(--sb-danger); }
.sb-select {
    appearance: none;
    -webkit-appearance: none;
    padding-right: 38px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5' fill='none' stroke='%23a58a96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 15px center;
    cursor: pointer;
}
.sb-textarea { min-height: 110px; resize: vertical; border-radius: 16px; }

/* ---------- 表格 ---------- */
.sb-table-wrap { overflow-x: auto; border-radius: var(--sb-radius-sm); }
.sb-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    background: var(--sb-card);
}
.sb-table th {
    text-align: left;
    padding: 12px 14px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--sb-subtext);
    background: #fff0f5;
    white-space: nowrap;
}
.sb-table th:first-child { border-radius: var(--sb-radius-sm) 0 0 var(--sb-radius-sm); }
.sb-table th:last-child { border-radius: 0 var(--sb-radius-sm) var(--sb-radius-sm) 0; }
.sb-table td { padding: 12px 14px; border-bottom: 1px dashed var(--sb-line); vertical-align: middle; }
.sb-table tbody tr { transition: background-color .15s ease; }
.sb-table tbody tr:hover { background: #fff8fb; }
.sb-table tbody tr:last-child td { border-bottom: none; }

/* ---------- Toast ---------- */
.sb-toast-stack {
    position: fixed;
    top: 18px;
    right: 18px;
    z-index: 1200;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
    max-width: min(90vw, 360px);
    pointer-events: none;
}
.sb-toast {
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--sb-card);
    border: 2px solid var(--sb-accent);
    border-radius: 18px;
    box-shadow: 0 8px 24px rgba(90, 74, 82, .14);
    font-size: 14px;
    color: var(--sb-text);
    cursor: pointer;
    opacity: 0;
    transform: translateX(24px) scale(.96);
    transition: opacity .3s ease, transform .3s cubic-bezier(.34, 1.56, .64, 1);
}
.sb-toast.is-in { opacity: 1; transform: none; }
.sb-toast.is-out { opacity: 0; transform: translateY(-10px) scale(.94); }
.sb-toast__decor { flex-shrink: 0; font-size: 13px; }
.sb-toast__msg { word-break: break-word; }
.sb-toast--success { border-color: #bfe9d3; }
.sb-toast--success .sb-toast__decor { color: #3f9573; }
.sb-toast--error { border-color: #f6c3cd; }
.sb-toast--error .sb-toast__decor { color: var(--sb-danger); }
.sb-toast--info { border-color: #cfe6f8; }
.sb-toast--info .sb-toast__decor { color: #4a7fb5; }

/* ---------- 弹窗（<x-modal> 与 SB.confirm 共用） ---------- */
.sb-modal {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity .22s ease, visibility .22s ease;
}
.sb-modal.is-open { opacity: 1; visibility: visible; }
.sb-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(90, 74, 82, .38);
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
}
.sb-modal__panel {
    position: relative;
    width: 100%;
    max-width: 460px;
    max-height: min(86vh, 720px);
    overflow: auto;
    padding: 22px 24px;
    background: var(--sb-card);
    border-radius: var(--sb-radius);
    box-shadow: var(--sb-shadow-lg);
    transform: scale(.92);
    transition: transform .22s ease;
}
.sb-modal.is-open .sb-modal__panel {
    transform: scale(1);
    animation: pop .3s cubic-bezier(.34, 1.56, .64, 1);
}
.sb-modal__head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.sb-modal__title { font-size: 17px; font-weight: 700; }
.sb-modal__close {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 50%;
    background: var(--sb-bg);
    color: var(--sb-subtext);
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
    transition: background-color .18s ease, color .18s ease, transform .18s ease;
}
.sb-modal__close:hover { background: var(--sb-accent); color: #fff; transform: rotate(90deg); }
.sb-modal__close:focus-visible { outline: 3px solid var(--sb-accent); outline-offset: 2px; }

/* SB.confirm 专属 */
.sb-confirm__panel { max-width: 350px; text-align: center; padding: 26px 24px 22px; }
.sb-confirm__kaomoji { font-size: 30px; color: var(--sb-primary); letter-spacing: 1px; margin-bottom: 10px; }
.sb-confirm.sb-confirm--danger .sb-confirm__kaomoji { color: var(--sb-danger); }
.sb-confirm__title { font-size: 17px; font-weight: 700; }
.sb-confirm__message { margin-top: 8px; color: var(--sb-subtext); font-size: 13.5px; word-break: break-word; }
.sb-confirm__actions { display: flex; justify-content: center; gap: 12px; margin-top: 20px; }

/* ---------- 开关（<x-switch>） ---------- */
.sb-switch {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    cursor: pointer;
    -webkit-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}
.sb-switch__input { position: absolute; opacity: 0; width: 1px; height: 1px; margin: 0; pointer-events: none; }
.sb-switch__track {
    flex-shrink: 0;
    width: 44px;
    height: 25px;
    background: #e9dde3;
    border-radius: 999px;
    transition: background-color .2s ease;
}
.sb-switch__thumb {
    display: block;
    width: 19px;
    height: 19px;
    margin: 3px 0 0 3px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(90, 74, 82, .25);
    transition: transform .22s cubic-bezier(.34, 1.56, .64, 1);
    text-align: center;
}
.sb-switch__thumb::after {
    content: '';
    display: block;
    font-size: 11px;
    line-height: 19px;
    color: var(--sb-primary);
}
.sb-switch__input:checked + .sb-switch__track { background: var(--sb-primary); }
.sb-switch__input:checked + .sb-switch__track .sb-switch__thumb { transform: translateX(19px); }
.sb-switch__input:checked + .sb-switch__track .sb-switch__thumb::after { content: '♥'; }
.sb-switch__input:focus-visible + .sb-switch__track { box-shadow: 0 0 0 4px rgba(247, 154, 181, .25); }
.sb-switch__input:disabled + .sb-switch__track { opacity: .5; }
.sb-switch__input:disabled ~ .sb-switch__label { opacity: .6; }
.sb-switch__label { font-size: 14px; }

/* ---------- 标签（<x-tag>） ---------- */
.sb-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 11px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.7;
    white-space: nowrap;
}
.sb-tag--pink { background: #ffe3ec; color: #d4608a; }
.sb-tag--blue { background: #dff0fd; color: #4a7fb5; }
.sb-tag--green { background: #ddf5ea; color: #3f9573; }
.sb-tag--yellow { background: #fdf3d1; color: #a8862d; }
.sb-tag--purple { background: #ece3fb; color: #7d5fc0; }
.sb-tag--gray { background: #f0edef; color: #857a80; }

/* ---------- 分页 ---------- */
.sb-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin: 22px 0 6px;
}
.sb-page {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 13px;
    border: 2px solid var(--sb-accent);
    border-radius: 999px;
    background: var(--sb-card);
    color: var(--sb-text);
    font-size: 13.5px;
    text-decoration: none;
    transition: transform .18s ease, border-color .18s ease, color .18s ease, box-shadow .18s ease;
}
a.sb-page:hover {
    transform: translateY(-2px);
    border-color: var(--sb-primary);
    color: var(--sb-primary);
    box-shadow: 0 6px 14px rgba(247, 154, 181, .28);
}
a.sb-page:focus-visible { outline: 3px solid var(--sb-accent); outline-offset: 2px; }
.sb-page.is-current {
    background: var(--sb-primary);
    border-color: var(--sb-primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(247, 154, 181, .4);
}
.sb-page.is-disabled { opacity: .45; }
.sb-page--gap { border: none; background: transparent; color: var(--sb-subtext); padding: 0 2px; min-width: 0; }

/* ---------- 空状态（<x-empty>） ---------- */
.sb-empty { text-align: center; padding: 46px 20px; color: var(--sb-subtext); }
.sb-empty__kaomoji {
    display: inline-block;
    font-size: 34px;
    color: var(--sb-primary);
    letter-spacing: 1px;
    animation: float 3.2s ease-in-out infinite;
}
.sb-empty__text { margin-top: 14px; font-size: 14px; }
.sb-empty__extra { margin-top: 16px; }

/* ---------- 动画 ---------- */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-9px); }
}
@keyframes pop {
    0% { transform: scale(.85); opacity: .4; }
    60% { transform: scale(1.04); }
    100% { transform: scale(1); opacity: 1; }
}
@keyframes note-fly {
    0% { transform: translate(0, 0) rotate(0) scale(1); opacity: 1; }
    100% { transform: translate(14px, -56px) rotate(18deg) scale(1.35); opacity: 0; }
}

/* ---------- guest 布局（首页 / 登录 / 注册壳） ---------- */
.sb-guest {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--sb-bg);
    background-image:
        radial-gradient(circle at 12% 18%, rgba(251, 208, 221, .5), transparent 42%),
        radial-gradient(circle at 88% 78%, rgba(251, 208, 221, .42), transparent 40%);
}
.sb-guest__header { display: flex; justify-content: center; padding: 24px 16px 8px; }
.sb-guest__logo {
    display: inline-flex;
    align-items: baseline;
    gap: 8px;
    font-size: 22px;
    font-weight: 700;
    color: var(--sb-primary);
    text-decoration: none;
}
.sb-guest__logo small { font-size: 12px; font-weight: 600; color: var(--sb-subtext); letter-spacing: 2px; }
.sb-guest__logo-note { display: inline-block; animation: float 2.6s ease-in-out infinite; }
.sb-guest__main { flex: 1; display: flex; align-items: center; justify-content: center; padding: 16px 16px 40px; }
.sb-guest__footer { text-align: center; padding: 18px; font-size: 12px; color: var(--sb-subtext); }

/* ---------- dashboard 布局 ---------- */
.sb-drawer-checkbox { display: none; }
.sb-shell { display: flex; min-height: 100vh; }
.sb-sidebar {
    position: sticky;
    top: 0;
    z-index: 900;
    flex-shrink: 0;
    width: 232px;
    height: 100vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    padding: 20px 14px 16px;
    background: var(--sb-card);
    border-right: 1px solid var(--sb-line);
}
.sb-logo { padding: 4px 12px 18px; }
.sb-logo a { font-size: 19px; font-weight: 700; color: var(--sb-primary); text-decoration: none; }
.sb-logo small { display: block; margin-top: 2px; font-size: 11px; color: var(--sb-subtext); letter-spacing: 1px; }
.sb-nav { display: flex; flex-direction: column; gap: 4px; }
.sb-nav__group-title { padding: 16px 12px 6px; font-size: 11px; color: var(--sb-subtext); letter-spacing: 1px; }
.sb-nav__link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    border-radius: var(--sb-radius-sm);
    color: var(--sb-text);
    font-size: 14.5px;
    text-decoration: none;
    transition: background-color .18s ease, color .18s ease, transform .18s ease;
}
.sb-nav__link:hover { background: var(--sb-bg); color: var(--sb-primary); transform: translateX(2px); }
.sb-nav__link:focus-visible { outline: 3px solid var(--sb-accent); outline-offset: -1px; }
.sb-nav__link.is-active {
    background: var(--sb-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(247, 154, 181, .35);
}
.sb-nav__emoji { font-size: 17px; line-height: 1; }
.sb-sidebar__foot { margin-top: auto; padding: 16px 12px 4px; font-size: 11.5px; color: var(--sb-subtext); }
.sb-dash-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.sb-topbar {
    position: sticky;
    top: 0;
    z-index: 800;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: rgba(255, 245, 248, .86);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--sb-line);
}
.sb-topbar__spacer { flex: 1; }
.sb-topbar__user { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; }
.sb-topbar__avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--sb-accent);
    background: var(--sb-card);
}
.sb-topbar__avatar--fallback {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
}
.sb-topbar__name { max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sb-topbar__logout { margin: 0; }
.sb-content { flex: 1; width: 100%; max-width: 1080px; margin: 0 auto; padding: 26px 28px 44px; }
.sb-hamburger { display: none; }
.sb-drawer-mask { display: none; }

/* ---------- guest 页面内容（首页 hero / 登录注册卡片） ---------- */
.sb-home { width: 100%; max-width: 880px; }
.sb-hero { text-align: center; padding: 12px 8px 34px; }
.sb-hero__kaomoji {
    display: inline-block;
    font-size: 32px;
    color: var(--sb-primary);
    letter-spacing: 2px;
    animation: float 3s ease-in-out infinite;
}
.sb-hero__title { margin-top: 14px; font-size: clamp(26px, 5vw, 38px); font-weight: 700; }
.sb-hero__sub { margin-top: 12px; font-size: 15px; color: var(--sb-subtext); }
.sb-hero__actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; margin-top: 24px; }
.sb-hero__demo { margin-top: 16px; font-size: 13px; color: var(--sb-subtext); }
.sb-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.sb-feature { text-align: center; padding: 26px 20px; transition: transform .2s ease, box-shadow .2s ease; }
.sb-feature:hover { transform: translateY(-4px); box-shadow: var(--sb-shadow-lg); }
.sb-feature__emoji { font-size: 30px; }
.sb-feature__title { margin-top: 10px; font-size: 16px; font-weight: 700; }
.sb-feature__text { margin-top: 8px; font-size: 13px; color: var(--sb-subtext); text-align: justify; }
@media (max-width: 768px) {
    .sb-features { grid-template-columns: 1fr; }
}

.sb-auth-card { width: 100%; max-width: 400px; padding: 30px 30px 24px; }
.sb-auth-card__divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 16px 0;
    color: var(--sb-subtext);
    font-size: 12px;
}
.sb-auth-card__divider::before,
.sb-auth-card__divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--sb-line);
}
.sb-auth-card__title { font-size: 22px; font-weight: 700; text-align: center; }
.sb-auth-card__sub { margin: 6px 0 22px; text-align: center; font-size: 13px; color: var(--sb-subtext); }
.sb-check { display: inline-flex; align-items: center; gap: 7px; font-size: 13.5px; cursor: pointer; }
.sb-auth-card__submit { width: 100%; margin-top: 4px; }
.sb-auth-card__foot { margin-top: 18px; text-align: center; font-size: 13px; color: var(--sb-subtext); }

/* ---------- 后台通用小组件（统计卡 / 工具栏 / 代码块） ---------- */
.sb-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-bottom: 20px; }
.sb-stat { padding: 16px 20px; }
.sb-stat__num { font-size: 24px; font-weight: 700; color: var(--sb-primary); line-height: 1.2; }
.sb-stat__label { margin-top: 4px; font-size: 12.5px; color: var(--sb-subtext); }
.sb-toolbar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.sb-toolbar__search { display: flex; gap: 8px; flex: 1; min-width: 200px; max-width: 340px; }
.sb-toolbar__spacer { flex: 1; }
.sb-code {
    font-family: Consolas, Monaco, 'Courier New', monospace;
    font-size: 13px;
    letter-spacing: 1px;
    background: var(--sb-bg);
    border-radius: 8px;
    padding: 3px 9px;
}
.sb-row-actions { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.sb-row-actions form { margin: 0; }
.sb-filter-tabs { display: inline-flex; gap: 8px; flex-wrap: wrap; }
.sb-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
@media (max-width: 480px) {
    .sb-grid-2 { grid-template-columns: 1fr; }
}
.sb-badge { font-size: 13px; margin-left: 4px; }
.sb-cell-sub { display: block; font-size: 12px; color: var(--sb-subtext); }
.sb-cell-note {
    display: inline-block;
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    vertical-align: bottom;
}

/* ---------- 移动端（≤768px） ---------- */
@media (max-width: 768px) {
    .sb-sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        height: 100vh;
        height: 100dvh;
        transform: translateX(-105%);
        transition: transform .26s ease;
        box-shadow: 0 0 40px rgba(90, 74, 82, .2);
    }
    #sb-drawer:checked ~ .sb-shell .sb-sidebar { transform: translateX(0); }
    .sb-drawer-mask {
        display: block;
        position: fixed;
        inset: 0;
        z-index: 850;
        background: rgba(90, 74, 82, .35);
        opacity: 0;
        pointer-events: none;
        transition: opacity .26s ease;
    }
    #sb-drawer:checked ~ .sb-shell .sb-drawer-mask { opacity: 1; pointer-events: auto; }
    .sb-hamburger {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        border: 2px solid var(--sb-accent);
        border-radius: 12px;
        background: var(--sb-card);
        color: var(--sb-primary);
        font-size: 17px;
        cursor: pointer;
    }
    .sb-topbar { padding: 10px 14px; gap: 8px; }
    .sb-topbar__name { max-width: 90px; }
    .sb-content { padding: 18px 14px 36px; }
    .sb-toast-stack { top: 12px; right: 12px; left: 12px; max-width: none; align-items: stretch; }
    .sb-modal__panel { max-height: 84vh; }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
}