/* v79 step 配色：深红家族三档（中深红 / 深红 / 更深红） */
  body[data-tool="storystep"]   { --step-color: #C46A5E; --step-color-d: #A85648; --step-color-bg: rgba(196,106,94,0.10); --step-color-soft: rgba(196,106,94,0.18); }
  body[data-tool="imagestep"]   { --step-color: #A85648; --step-color-d: #863F33; --step-color-bg: rgba(168,86,72,0.10); --step-color-soft: rgba(168,86,72,0.18); }
  body[data-tool="seedancevid"] { --step-color: #7E3A30; --step-color-d: #5A2820; --step-color-bg: rgba(126,58,48,0.10); --step-color-soft: rgba(126,58,48,0.18); }
  body[data-tool="home"]        { --step-color: #65625D; --step-color-d: #3D3B37; --step-color-bg: rgba(101,98,93,0.10); --step-color-soft: rgba(101,98,93,0.18); }
  /* fallback */
  body:not([data-tool])         { --step-color: #C46A5E; --step-color-d: #A85648; --step-color-bg: rgba(196,106,94,0.10); --step-color-soft: rgba(196,106,94,0.18); }

  :root {
    /* 2026-05-23 迁移至 ai-agent-design-tokens（玫瑰豆沙 + 冷米 + glass 三层） */
    /* 保留变量名（--bg / --text / --brand-red / step 配色等），只改值 */
    --bg: #f5f6f8;                            /* --app-bg-page 冷米 */
    --bg-soft: #f8fafc;                       /* --app-surface-muted */
    --card: rgba(255,255,255,0.72);           /* --app-surface-glass */
    --card-h: rgba(255,255,255,0.86);         /* --app-surface-glass-hover */
    --card-solid: #FFFFFF;                    /* --app-surface */
    --card-soft: #fcfcfd;                     /* --app-surface-soft */
    --text: #111827;                          /* --app-text-strong */
    --text-2: #4b5563;                        /* --app-text-secondary */
    --text-3: #6b7280;                        /* --app-text-muted */
    --text-mute: #9aa4af;                     /* --app-text-subtle */
    --text-disabled: #a5afb8;                 /* --app-text-disabled */
    --line: rgba(139,157,175,0.14);           /* --app-border */
    --line-soft: rgba(139,157,175,0.10);      /* --app-border-soft */
    --line-warm: rgba(139,157,175,0.14);      /* 同 line（统一冷调） */
    --line-strong: #e5e7eb;                   /* --app-border-strong */
    --accent: #1D1B18;                        /* 深炭 — hero-pill active 保留 */
    --accent-soft: rgba(29,27,24,0.06);
    --accent-deep: #000000;
    --brand-red: #b87d75;                     /* 玫瑰豆沙 — 链接 / 主 CTA / 竖条 */
    --brand-red-hover: #a06a63;
    --brand-red-soft: rgba(184,125,117,0.10);
    --brand-red-ring: rgba(184,125,117,0.24);
    --nav-accent: #2f5d8a;                    /* --app-nav-accent 蓝 */
    --nav-accent-soft: rgba(47,93,138,0.10);
    --gold: #C89B3C;                          /* 深底 hero 关键词 accent 保留 */
    --ok: #A85648;                            /* anim-tools 自定义状态色保留 */
    --ok-soft: rgba(168,86,72,0.10);
    --ok-deep: #863F33;
    --warn: #C9A86E;
    --warn-soft: rgba(201,168,110,0.10);
    --warn-deep: #8A6C2E;
    --err: #C4796E;
    --err-soft: rgba(196,121,110,0.10);
    --link: #8895AD;
    --code-bg: rgba(0,0,0,0.03);
    /* status 三色（ai-agent-design-tokens 新增语义层） */
    --status-success: #22c55e;
    --status-success-soft: rgba(34,197,94,0.10);
    --status-warning: #fbbf24;
    --status-warning-soft: rgba(251,191,36,0.14);
    --status-danger: #c4342d;
    --status-danger-soft: rgba(196,52,45,0.08);
    /* 中性 hover bg（原 --warm-bg #FBF9F4 暖白，统一到冷调 soft） */
    --warm-bg: #fcfcfd;
    /* 圆角阶梯 ai-agent-design-tokens 8/10/12/16/20 */
    --r-sm: 8px;
    --r-md: 10px;
    --r-lg: 12px;
    --r-xl: 16px;
    --r-panel: 20px;
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  html, body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft Yahei", sans-serif;
    font-size: 14.5px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    height: 100vh;
    overflow: hidden;
  }
  /* body 装饰光晕（v18 alpha 减半，配冷调底）*/
  body::before {
    content: '';
    position: fixed;
    top: -12%; left: -6%;
    width: 40%; height: 40%;
    background: radial-gradient(ellipse, rgba(201,132,154,0.02) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
  }
  body::after {
    content: '';
    position: fixed;
    bottom: -8%; right: -6%;
    width: 35%; height: 35%;
    background: radial-gradient(ellipse, rgba(155,139,181,0.015) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
  }
  .app { position: relative; z-index: 1; }
  button { font-family: inherit; cursor: pointer; border: none; background: none; }
  input, textarea, select { font-family: inherit; }
  textarea { resize: vertical; }

  /* ============ Layout（v27 无 sidebar，单列居中） ============ */
  .app {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;   /* 旧 topbar/substatus 已删（2026-07-02），单行占满；原 64px auto 1fr 是给它们留行 */
    height: 100vh;
  }
  /* v27 topbar — brand 左 / stepper 居中 / 文档右 */
  .topbar {
    grid-column: 1 / -1;
    background: rgba(255,255,255,0.78);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    border-bottom: 1px solid var(--line);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 0 28px;
    gap: 24px;
    box-shadow: 0 0 0 0.5px rgba(255,255,255,0.3) inset;
    /* Round 2 NEW HIGH 1：给 .canvas-topbar-avatar absolute 一个 contain context */
    position: relative;
  }
  .brand {
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.01em;
    color: var(--text);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    transition: opacity 120ms;
    justify-self: start;
  }
  .brand:hover { opacity: 0.7; }
  .brand img { height: 36px; width: auto; display: block; }
  .brand small { display: none; }
  .topbar-spacer { display: none; }
  /* 右侧控件簇：占 grid 第 3 列右对齐；margin-right 给 absolute 头像（right:16,w:32）让位 */
  .atb-topbar-right {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    justify-self: end;
    margin-right: 32px;
  }
  .top-btn {
    color: var(--text-3);
    font-size: 12.5px;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 6px;
    border: 1px solid var(--line);
    background: transparent;
    transition: all 160ms cubic-bezier(0.16, 1, 0.3, 1);
    flex-shrink: 0;
  }
  .top-btn:hover { background: var(--warm-bg); border-color: var(--text-mute); color: var(--text); }

  /* ============ Sidebar (v27 已隐藏，仅保留兼容 js) ============ */
  .sidebar {
    display: none !important;
  }
  .sidebar-legacy {
    grid-row: 3;
    grid-column: 1;
    background: var(--bg-soft);
    border-right: 1px solid var(--line);
    overflow-y: auto;
    padding: 8px 0 24px;
    min-height: 0;
  }
  .nav-cat {
    padding: 18px 20px 8px;
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-weight: 600;
  }
  .nav-cat-toggle {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    user-select: none;
    transition: color .12s;
  }
  .nav-cat-toggle:hover { color: var(--text-2); }
  .nav-cat-arrow {
    font-size: 10px;
    width: 10px;
    color: var(--text-mute);
  }
  .nav-item {
    display: flex;
    align-items: center;
    padding: 8px 18px 8px 17px;
    margin: 0 8px;
    cursor: pointer;
    color: var(--text-2);
    font-size: 13px;
    border-radius: 6px;
    border-left: 0;
    transition: all 120ms cubic-bezier(0.16, 1, 0.3, 1);
    user-select: none;
    gap: 8px;
    position: relative;
  }
  .nav-item:hover {
    background: var(--warm-bg);
    color: var(--text);
  }
  .nav-item.active {
    background: #FFFFFF;
    color: var(--text);
    font-weight: 600;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
  }
  .nav-item.active::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 8px;
    bottom: 8px;
    width: 3px;
    background: var(--brand-red);
    border-radius: 0 2px 2px 0;
  }
  .nav-num {
    font-size: 11px;
    color: var(--text-mute);
    width: 18px;
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
    font-weight: 500;
  }
  .nav-item.active .nav-num { color: var(--brand-red); }
  .nav-tag {
    margin-left: auto;
    font-size: 9.5px;
    color: var(--text-mute);
    background: #F0EDE5;
    padding: 1px 6px;
    border-radius: 6px;
    border: 1px solid var(--line);
    font-weight: 500;
    letter-spacing: 0.02em;
  }
  .nav-tag.todo { color: var(--text-mute); }
  .nav-tag.api { color: var(--brand-red); border-color: var(--brand-red-soft); background: var(--brand-red-soft); }

  /* ============ Main（v27 居中宽屏） ============ */
  .main {
    grid-row: 1;   /* 旧三行布局(topbar/substatus/main)时是 row 3；topbar/substatus 删后 .app 单行,main 必须回 row 1，否则 row1(1fr)空占撑出大空隙 */
    grid-column: 1;
    overflow-y: auto;
    padding: 36px 32px 80px;
    background: var(--bg);
    min-height: 0;
  }
  .main-inner { max-width: 1280px; margin: 0 auto; padding: 0; }

  /* ============ v26 全局图片兜底 — 防上传图撑满 ============ */
  .main-inner img {
    max-width: 100%;
  }
  /* 任何 .card / .atb-card 内裸 img（未指定高度类） */
  .card > img,
  .atb-card > img,
  .card .helper + img {
    max-height: 320px;
    object-fit: contain;
    display: block;
  }

  /* ============ v26 响应式 ============ */
  @media (max-width: 1100px) {
    .app {
      grid-template-columns: 200px 1fr;
    }
    .main { padding: 24px 18px 48px; }
    .tool-title { font-size: 22px; }
  }
  @media (max-width: 820px) {
    .app {
      grid-template-columns: 1fr;
      grid-template-rows: 56px auto auto 1fr;
    }
    .sidebar {
      grid-row: 3;
      grid-column: 1;
      max-height: 240px;
      border-right: none;
      border-bottom: 1px solid var(--line);
    }
    .main { grid-row: 4; grid-column: 1; padding: 20px 14px 40px; }
    .atb-stepper { display: none !important; }
    .atb-substatus { padding: 8px 14px 8px 18px; }
    .tool-title { font-size: 20px; }
    .tool-desc { font-size: 13px; }
  }

  /* v27 Tool header · 居中、简洁，与 hero/stepper 风格一致 */
  .tool-head {
    margin-bottom: 24px;
    padding-bottom: 0;
    border-bottom: none;
    text-align: center;
  }
  .tool-cat {
    font-size: 11px;
    color: var(--ok-deep);
    letter-spacing: 0.22em;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 12px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
  }
  .tool-cat::before,
  .tool-cat::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 1px;
    background: var(--ok);
    opacity: 0.5;
  }
  .tool-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 0;
    letter-spacing: -0.02em;
    line-height: 1.3;
    color: var(--text);
  }
  .tool-desc {
    color: var(--text-2);
    font-size: 14px;
    line-height: 1.7;
    max-width: 640px;
    font-weight: 400;
    margin: 0 auto;
  }

  /* v25 Cards — 暖白底 + 极淡阴影（替代老玻璃，更克制）*/
  .card {
    background: #FFFFFF;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 22px 24px;
    margin-bottom: 16px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.025);
    transition: box-shadow 160ms cubic-bezier(0.16, 1, 0.3, 1);
  }
  .card-title {
    font-size: 11.5px;
    color: var(--text-3);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .card-title .helper {
    font-size: 11.5px;
    color: var(--text-mute);
    text-transform: none;
    letter-spacing: 0;
    font-weight: 400;
  }

  /* v25 Form controls */
  .field { margin-bottom: 14px; }
  .field:last-child { margin-bottom: 0; }
  .field label {
    display: block;
    font-size: 12.5px;
    color: var(--text-2);
    margin-bottom: 6px;
    font-weight: 500;
  }
  .input, .textarea, .select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 9px 12px;
    background: #FFFFFF;
    color: var(--text);
    font-size: 14px;
    line-height: 1.55;
    transition: border-color 120ms, box-shadow 120ms;
  }
  .input::placeholder, .textarea::placeholder { color: var(--text-mute); }
  .input:focus, .textarea:focus, .select:focus {
    outline: none;
    border-color: var(--ok);
    box-shadow: 0 0 0 3px rgba(126,168,141,0.15);
  }
  .textarea { font-family: inherit; min-height: 90px; resize: vertical; }
  .textarea.code-style {
    font-family: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
    font-size: 12.5px;
    background: var(--code-bg);
  }

  .field-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .field-row.three { grid-template-columns: repeat(3, 1fr); }
  .field-row.four { grid-template-columns: repeat(4, 1fr); }

  /* v30 按钮 · radius 8 方圆角 · step 配色 var */
  .actions {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
  }
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border: 1px solid var(--line);
    background: #FFFFFF;
    color: var(--text-2);
    padding: 0 16px;
    height: 32px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    transition: all 160ms cubic-bezier(0.16, 1, 0.3, 1);
    line-height: 1;
    cursor: pointer;
    font-family: inherit;
    white-space: nowrap;
  }
  .btn:hover { border-color: var(--step-color, var(--ok)); color: var(--step-color-d, var(--ok-deep)); background: var(--warm-bg); }
  .btn.primary {
    background: var(--step-color, var(--ok));
    color: #FFFFFF;
    border-color: var(--step-color, var(--ok));
  }
  .btn.primary:hover { background: var(--step-color-d, var(--ok-deep)); border-color: var(--step-color-d, var(--ok-deep)); }
  .btn.dark {
    background: var(--step-color-bg, var(--ok-soft));
    color: var(--step-color-d, var(--ok-deep));
    border: 1px solid var(--step-color, var(--ok));
  }
  .btn.dark:hover { background: var(--step-color, var(--ok)); color: #FFFFFF; border-color: var(--step-color, var(--ok)); }
  .btn.primary:disabled, .btn:disabled {
    opacity: .45;
    cursor: not-allowed;
  }
  .btn.atb-is-btn-mini {
    padding: 0 11px;
    height: 26px;
    font-size: 11.5px;
    border-radius: 6px;
  }

  /* Result containers */
  .empty-result {
    text-align: center;
    color: var(--text-mute);
    padding: 32px 16px;
    font-size: 13.5px;
  }
  .loading-line {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-2);
    font-size: 13.5px;
  }
  .spinner {
    width: 14px;
    height: 14px;
    border: 1.5px solid var(--brand-red-soft);
    border-top-color: var(--brand-red);
    border-radius: 50%;
    animation: spin .8s linear infinite;
  }
  @keyframes spin { to { transform: rotate(360deg); } }

  /* Compliance result styles */
  .score-row {
    display: flex;
    align-items: center;
    gap: 18px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line-soft);
    margin-bottom: 16px;
  }
  .score-circle {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    border: 2.5px solid var(--ok);
    color: var(--ok);
    font-size: 22px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }
  .score-circle.warn { border-color: var(--warn); color: var(--warn); }
  .score-circle.err { border-color: var(--err); color: var(--err); }
  .score-info { flex: 1; }
  .score-label {
    font-size: 12px;
    padding: 2px 10px;
    border-radius: 99px;
    font-weight: 500;
    display: inline-block;
    margin-bottom: 4px;
  }
  .score-label.pass { background: var(--ok-soft); color: var(--ok); }
  .score-label.review { background: var(--warn-soft); color: var(--warn); }
  .score-label.fail { background: var(--err-soft); color: var(--err); }
  .score-meta { font-size: 13px; color: var(--text-2); }

  .check-group {
    border-bottom: 1px solid var(--line-soft);
    padding: 12px 0;
  }
  .check-group:last-child { border-bottom: none; padding-bottom: 0; }
  .check-group:first-child { padding-top: 0; }
  .check-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
  }
  .check-name {
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text);
  }
  .check-status {
    font-size: 11.5px;
    padding: 2px 8px;
    border-radius: 99px;
    font-weight: 500;
  }
  .check-status.ok { background: var(--ok-soft); color: var(--ok); }
  .check-status.warn { background: var(--warn-soft); color: var(--warn); }
  .check-status.fail { background: var(--err-soft); color: var(--err); }
  .check-detail {
    font-size: 12.5px;
    color: var(--text-2);
    line-height: 1.55;
  }
  .check-detail .hit {
    display: inline-block;
    background: var(--bg-soft);
    border: 1px solid var(--line);
    padding: 1px 8px;
    border-radius: 4px;
    margin: 2px 4px 2px 0;
    font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
    font-size: 12px;
    color: var(--text);
  }
  .check-detail .hit.warn { border-color: #ECE0CC; background: var(--warn-soft); color: var(--warn); }
  .check-detail .hit.fail { border-color: #ECCFC4; background: var(--err-soft); color: var(--err); }
  .check-detail .arrow { color: var(--text-mute); margin: 0 4px; }
  .check-detail .replacement {
    color: var(--ok);
    font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
    font-size: 12px;
    background: var(--ok-soft);
    border: 1px solid #DCE6D5;
    padding: 1px 6px;
    border-radius: 4px;
  }

  /* Toggle */
  .toggle-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--line-soft);
  }
  .toggle-row:last-child { border-bottom: none; }
  .toggle-row .toggle-info { flex: 1; min-width: 0; }
  .toggle-row .toggle-name { font-size: 13.5px; color: var(--text); margin-bottom: 2px; }
  .toggle-row .toggle-desc { font-size: 12px; color: var(--text-3); line-height: 1.5; }
  .switch {
    position: relative;
    width: 36px;
    height: 20px;
    background: var(--line);
    border-radius: 99px;
    cursor: pointer;
    transition: background .15s;
    flex-shrink: 0;
  }
  .switch::after {
    content: "";
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    background: white;
    border-radius: 50%;
    transition: transform .15s;
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
  }
  .switch.on { background: var(--accent); }
  .switch.on::after { transform: translateX(16px); }

  /* Output for tool 1 (creative expand) */
  .config-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 14px;
  }
  .config-cell {
    text-align: center;
    padding: 12px 10px;
    background: var(--bg-soft);
    border-radius: 6px;
    border: 1px solid var(--line);
  }
  .config-cell .k {
    font-size: 11px;
    color: var(--text-3);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
  }
  .config-cell .v {
    font-size: 13.5px;
    color: var(--text);
    font-weight: 600;
  }
  .group-strip {
    display: grid;
    gap: 8px;
    margin-top: 14px;
  }
  .group-card {
    border: 1px solid var(--line);
    border-radius: 5px;
    padding: 10px 14px;
    background: var(--bg-soft);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
  }
  .group-card .gn {
    font-size: 11px;
    color: var(--text-mute);
    letter-spacing: 0.04em;
    width: 80px;
    flex-shrink: 0;
  }
  .group-card .gt { font-size: 13.5px; font-weight: 600; flex: 1; min-width: 0; }
  .group-card .gh { font-size: 12.5px; color: var(--text-2); }

  /* xlsx tool */
  .file-info {
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: 5px;
    padding: 10px 14px;
    font-size: 12.5px;
    color: var(--text-2);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .file-info b { color: var(--text); font-weight: 600; }

  /* placeholder card */
  .placeholder-card {
    background: var(--card);
    border: 1px dashed var(--line);
    border-radius: 8px;
    padding: 60px 24px;
    text-align: center;
  }
  .placeholder-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-2);
  }
  .placeholder-card p {
    color: var(--text-3);
    font-size: 13.5px;
    line-height: 1.6;
    max-width: 480px;
    margin: 0 auto;
  }

  /* Modal */
  .modal-mask {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.3);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
  }
  .modal-mask.show { display: flex; }
  .modal {
    background: var(--card);
    border-radius: 10px;
    padding: 28px 32px;
    width: 540px;
    max-width: 90vw;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
  }
  .modal-title {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 6px;
  }
  .modal-sub {
    font-size: 13px;
    color: var(--text-3);
    margin-bottom: 20px;
  }
  .modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
  }

  /* v25 Toast — UTEN 风（深炭半透 + backdrop-blur + pill） */
  .toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: rgba(28,25,23,0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: #FFFFFF;
    padding: 11px 20px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.01em;
    z-index: 200;
    opacity: 0;
    transition: all 200ms cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
    box-shadow: 0 4px 16px rgba(0,0,0,0.18);
  }
  .toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

  /* Scrollbar refinement */
  .sidebar::-webkit-scrollbar, .main::-webkit-scrollbar { width: 8px; }
  .sidebar::-webkit-scrollbar-thumb, .main::-webkit-scrollbar-thumb {
    background: var(--line);
    border-radius: 4px;
  }

  /* ===== Tool 2 storyboard: direction cards + acts ===== */
  .direction-card {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 12px 14px;
    margin-bottom: 8px;
    background: var(--bg-soft);
  }
  .direction-card.selected {
    border-color: var(--accent);
    background: var(--accent-soft);
  }
  .direction-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
  }
  .direction-title { font-size: 13.5px; font-weight: 600; margin-bottom: 3px; }
  .direction-desc { font-size: 12.5px; color: var(--text-2); line-height: 1.55; }
  .direction-rate { flex-shrink: 0; text-align: right; }
  .direction-stars {
    color: var(--accent);
    font-size: 13px;
    letter-spacing: 1.5px;
    display: block;
    margin-bottom: 4px;
    font-variant-numeric: tabular-nums;
  }
  .direction-tag {
    font-size: 10.5px;
    background: var(--accent);
    color: white;
    padding: 1px 8px;
    border-radius: 99px;
    font-weight: 500;
  }
  .acts-grid { display: grid; gap: 10px; }
  .act-card {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 12px 14px;
    background: var(--card);
  }
  .act-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
  }
  .act-no { font-size: 13px; font-weight: 600; color: var(--text); }
  .act-pct { font-size: 11.5px; color: var(--text-3); font-variant-numeric: tabular-nums; }
  .act-goal {
    font-size: 13px;
    color: var(--text-2);
    margin-bottom: 8px;
    line-height: 1.55;
  }
  .act-beats {
    margin: 0 0 8px 16px;
    padding: 0;
    font-size: 12.5px;
    color: var(--text-2);
    line-height: 1.6;
  }
  .act-beats li { margin-bottom: 2px; }
  .act-meta {
    font-size: 11.5px;
    color: var(--text-3);
    display: flex;
    gap: 16px;
    padding-top: 6px;
    border-top: 1px solid var(--line-soft);
  }

  /* ===== Tool 3 shotlist: group blocks + table ===== */
  .group-block {
    margin-bottom: 22px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line-soft);
  }
  .group-block:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
  }
  .group-block-head {
    display: flex;
    gap: 12px;
    align-items: baseline;
    margin-bottom: 8px;
    padding: 6px 0;
    font-size: 13px;
    flex-wrap: wrap;
  }
  .group-block-head b { font-weight: 600; color: var(--text); }
  .shotlist-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12.5px;
  }
  .shotlist-table th, .shotlist-table td {
    border: 1px solid var(--line);
    padding: 6px 10px;
    vertical-align: top;
    text-align: left;
    line-height: 1.5;
  }
  .shotlist-table th {
    background: var(--bg-soft);
    font-weight: 600;
    color: var(--text);
    font-size: 11.5px;
  }
  .shotlist-table td { color: var(--text-2); }

  /* ===== Tool 6 seedance: 6 segment cards + dark video prompt ===== */
  .seg-list { display: grid; gap: 8px; }
  .seg-card {
    border: 1px solid var(--line);
    border-radius: 5px;
    padding: 10px 14px;
    background: var(--bg-soft);
  }
  .seg-head {
    font-size: 11.5px;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 4px;
    letter-spacing: 0.02em;
  }
  .seg-body {
    font-size: 12.5px;
    color: var(--text-2);
    line-height: 1.6;
  }
  .video-prompt-dark {
    background: #1F1B17;
    color: #E8DDD0;
    padding: 14px 16px;
    border-radius: 6px;
    font-family: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
    font-size: 12px;
    line-height: 1.7;
    white-space: pre-wrap;
    max-height: 320px;
    overflow-y: auto;
    margin-top: 14px;
  }
  .video-prompt-dark .tag-hl {
    color: #E8B89A;
    font-weight: 600;
  }

  /* ===== Tool 4 reasoning: 3-layer compile cards ===== */
  .layer-card {
    border: 1px solid var(--line);
    border-radius: 6px;
    margin-bottom: 12px;
    overflow: hidden;
  }
  .layer-card.layer-1 { border-left: 3px solid #B5907A; }
  .layer-card.layer-2 { border-left: 3px solid #3D3B37; }
  .layer-card.layer-3 { border-left: 3px solid #5C7A53; }
  .layer-head {
    background: var(--bg-soft);
    padding: 10px 14px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    display: flex;
    gap: 10px;
    align-items: center;
    border-bottom: 1px solid var(--line);
  }
  .layer-tag {
    font-size: 10.5px;
    background: var(--card);
    color: var(--text-3);
    padding: 2px 8px;
    border-radius: 99px;
    font-weight: 500;
    letter-spacing: 0.04em;
    border: 1px solid var(--line);
  }
  .layer-body {
    padding: 12px 14px;
    background: var(--card);
  }
  .kv {
    font-size: 12.5px;
    color: var(--text-2);
    line-height: 1.6;
    padding: 4px 0;
  }
  .kv b {
    display: inline-block;
    width: 84px;
    color: var(--text-3);
    font-weight: 600;
    font-size: 11.5px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }
  .brief-row {
    margin-bottom: 8px;
    line-height: 1.7;
  }
  .brief-row:last-child { margin-bottom: 0; }
  .brief-label {
    display: inline-block;
    font-size: 10.5px;
    padding: 2px 9px;
    border-radius: 99px;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-right: 8px;
    margin-bottom: 4px;
    vertical-align: middle;
  }
  .brief-label.dom { background: #3D3B37; color: white; }
  .brief-label.pre { background: var(--ok); color: white; }
  .brief-label.avo { background: var(--err); color: white; }

  .tag-soft, .tag-dom, .tag-pre, .tag-avo {
    display: inline-block;
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 4px;
    margin: 2px 4px 2px 0;
    border: 1px solid var(--line);
    background: var(--bg-soft);
    color: var(--text-2);
  }
  .tag-dom { border-color: #ECC8B6; background: var(--accent-soft); color: var(--accent-deep); }
  .tag-pre { border-color: #DCE6D5; background: var(--ok-soft); color: var(--ok); }
  .tag-avo { border-color: #ECCFC4; background: var(--err-soft); color: var(--err); }

  .final-prompt {
    background: #FAF1EA;
    border: 1px solid var(--accent-soft);
    border-radius: 5px;
    padding: 12px 14px;
    font-size: 13px;
    line-height: 1.7;
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", sans-serif;
  }

  /* ===== Home page ===== */
  .hero-block {
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line);
  }
  .step-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
  .step-card {
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 24px 22px 22px;
    transition: transform .15s, box-shadow .15s;
    display: flex;
    flex-direction: column;
    min-height: 200px;
  }
  .step-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.05);
  }
  .step-card-num {
    font-size: 11.5px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 4px;
  }
  .step-card-icon {
    font-size: 36px;
    margin-bottom: 10px;
    line-height: 1;
  }
  .step-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
  }
  .step-card-desc {
    font-size: 13.5px;
    color: var(--text-2);
    line-height: 1.6;
    margin-bottom: 16px;
    flex: 1;
  }
  .step-card-btn {
    align-self: flex-start;
    padding: 8px 22px;
  }
  @media (max-width: 720px) {
    .step-grid { grid-template-columns: 1fr; }
  }

  /* ===== Story Step (Step 1 故事侧合并版) ===== */
  .atb-ss-tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--line);
  }
  /* v29 storystep · 即梦风顶部输入框（参考即梦 prompt box） */
  .atb-ss-prompt-box {
    background: #FFFFFF;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 16px 18px 12px;
    margin: 0 auto 28px;
    max-width: 920px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    transition: border-color 160ms, box-shadow 160ms;
  }
  .atb-ss-prompt-box:focus-within {
    border-color: var(--ok);
    box-shadow: 0 0 0 3px rgba(126,168,141,0.10);
  }
  .atb-ss-prompt-text {
    width: 100%;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--text);
    font-size: 14px;
    line-height: 1.65;
    font-family: inherit;
    resize: none;
    padding: 0;
    min-height: 56px;
  }
  .atb-ss-prompt-text::placeholder { color: var(--text-mute); }
  .atb-ss-prompt-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--line-soft);
  }
  .atb-ss-prompt-config {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
    flex: 1;
    min-width: 0;
  }
  .atb-ss-prompt-sep {
    width: 1px;
    height: 14px;
    background: var(--line);
    margin: 0 4px;
    display: inline-block;
  }
  .atb-ss-pill {
    display: inline-flex;
    align-items: center;
    height: 26px;
    padding: 0 10px;
    border-radius: 6px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-3);
    font-size: 12px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all 120ms cubic-bezier(0.16, 1, 0.3, 1);
    line-height: 1;
    white-space: nowrap;
  }
  .atb-ss-pill:hover { background: var(--warm-bg); color: var(--text); }
  .atb-ss-pill.on {
    background: var(--step-color-bg);
    color: var(--step-color-d);
    border-color: var(--step-color);
  }
  .atb-ss-prompt-send {
    flex-shrink: 0;
    width: 36px; height: 36px;
    border-radius: 50%;
    background: var(--text);
    color: #FFFFFF;
    border: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 160ms;
    font-family: inherit;
  }
  .atb-ss-prompt-send:hover { background: #000; }
  .atb-ss-prompt-send:disabled { opacity: 0.4; cursor: not-allowed; }

  /* 上传文件 chips 行 */
  .atb-ss-attach-row { display: flex; flex-wrap: wrap; gap: 8px; }
  .atb-ss-attach-row:not(:empty) { margin-top: 12px; }
  .atb-ss-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    max-width: 220px;
    padding: 5px 7px 5px 5px;
    border: 1px solid var(--line);
    border-radius: 9px;
    background: var(--warm-bg);
  }
  .atb-ss-chip.is-parsing { opacity: 0.65; }
  .atb-ss-chip.is-error { border-color: var(--err); background: rgba(193,90,90,0.06); }
  .atb-ss-chip-thumb {
    width: 28px; height: 28px;
    border-radius: 6px;
    background-size: cover;
    background-position: center;
    flex-shrink: 0;
  }
  .atb-ss-chip-ico {
    width: 28px; height: 28px;
    border-radius: 6px;
    display: inline-flex; align-items: center; justify-content: center;
    background: #FFFFFF;
    border: 1px solid var(--line-soft);
    font-size: 14px;
    flex-shrink: 0;
  }
  .atb-ss-chip-meta { display: flex; flex-direction: column; min-width: 0; line-height: 1.25; }
  .atb-ss-chip-name {
    font-size: 12px; color: var(--text);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  }
  .atb-ss-chip-sub { font-size: 10.5px; color: var(--text-3); }
  .atb-ss-chip.is-error .atb-ss-chip-sub { color: var(--err); }
  .atb-ss-chip-x {
    flex-shrink: 0;
    width: 18px; height: 18px;
    border: 0; background: transparent;
    color: var(--text-mute);
    font-size: 15px; line-height: 1;
    cursor: pointer; border-radius: 4px;
  }
  .atb-ss-chip-x:hover { background: rgba(0,0,0,0.06); color: var(--text); }

  /* 输入框左侧工具按钮（上传 / 配置折叠开关） */
  .atb-ss-prompt-tools { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; min-width: 0; }
  .atb-ss-tool-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    height: 30px;
    padding: 0 11px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #FFFFFF;
    color: var(--text-2);
    font-size: 12.5px;
    font-family: inherit;
    cursor: pointer;
    transition: all 140ms;
  }
  .atb-ss-tool-btn:hover { background: var(--warm-bg); color: var(--text); border-color: var(--text-mute); }
  .atb-ss-caret { font-size: 9px; opacity: 0.6; transition: transform 160ms; }

  /* 配置下拉框（方向 / 时长 / 画幅 各一个，点开各自菜单） */
  .atb-ss-dd { position: relative; display: inline-block; }
  .atb-ss-dd-btn {
    display: inline-flex; align-items: center; gap: 6px;
    height: 30px; padding: 0 10px;
    border: 1px solid var(--line); border-radius: 8px;
    background: #FFFFFF; color: var(--text-2);
    font-size: 12.5px; font-family: inherit; cursor: pointer;
    transition: all 140ms; white-space: nowrap;
  }
  .atb-ss-dd-btn:hover,
  .atb-ss-dd.is-open .atb-ss-dd-btn { background: var(--warm-bg); color: var(--text); border-color: var(--text-mute); }
  .atb-ss-dd-k { color: var(--text-3); }
  .atb-ss-dd-v { color: var(--text); font-weight: 500; }
  .atb-ss-dd.is-open .atb-ss-caret { transform: rotate(180deg); }
  .atb-ss-dd-menu {
    display: none;
    position: absolute; top: calc(100% + 6px); left: 0;
    min-width: 100%;
    flex-direction: column; gap: 2px;
    padding: 5px;
    background: #FFFFFF;
    border: 1px solid var(--line);
    border-radius: 10px;
    box-shadow: 0 8px 22px rgba(0,0,0,0.10);
    z-index: 40;
  }
  .atb-ss-dd.is-open .atb-ss-dd-menu { display: flex; }
  .atb-ss-dd-opt {
    text-align: left;
    padding: 7px 12px;
    border: 0; border-radius: 6px;
    background: transparent; color: var(--text-2);
    font-size: 12.5px; font-family: inherit; cursor: pointer;
    white-space: nowrap;
  }
  .atb-ss-dd-opt:hover { background: var(--warm-bg); color: var(--text); }
  .atb-ss-dd-opt.on { background: var(--step-color-bg); color: var(--step-color-d); }

  /* v29 创意卡 section 标题 */
  .atb-ss-cards-section { max-width: 1280px; margin: 0 auto; }
  .atb-ss-cards-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
  }
  .atb-ss-cards-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.005em;
  }
  .atb-ss-cards-hint {
    font-size: 12px;
    color: var(--text-3);
  }

  /* v29 创意卡 modal · render to body, z-index 顶 */
  .atb-ss-modal-mask {
    position: fixed;
    inset: 0;
    background: rgba(28,25,23,0.48);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 16px;
    animation: atb-ss-modal-fade 200ms ease;
  }
  @keyframes atb-ss-modal-fade {
    from { opacity: 0; }
    to { opacity: 1; }
  }
  .atb-ss-modal {
    position: relative;
    background: #FFFFFF;
    border-radius: 16px;
    max-width: 820px; /* v81: 680 → 820，为 inline 编辑 + AI 对话区留空间 */
    width: 100%;
    max-height: 88vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.18);
    animation: atb-ss-modal-pop 260ms cubic-bezier(0.16, 1, 0.3, 1);
  }
  @keyframes atb-ss-modal-pop {
    from { opacity: 0; transform: translateY(20px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
  }
  .atb-ss-modal-close {
    position: absolute;
    top: 14px; right: 14px;
    width: 28px; height: 28px;
    border-radius: 50%;
    background: var(--warm-bg);
    border: 1px solid var(--line);
    color: var(--text-2);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 120ms;
    z-index: 2;
  }
  .atb-ss-modal-close:hover { background: var(--text); color: #FFFFFF; border-color: var(--text); }
  /* v31 modal head · 同卡片雾感色板 */
  .atb-ss-modal-head {
    padding: 32px 28px 24px;
    border-bottom: 1px solid var(--line-soft);
    position: relative;
    background: linear-gradient(160deg, var(--cc-from, #F0EDE5) 0%, var(--cc-to, #E5E1D7) 100%);
  }
  .atb-ss-modal-head[data-vertical="CP情缘"]   { --cc-from: #FBE9EB; --cc-to: #F4D7D7; }
  .atb-ss-modal-head[data-vertical="萌宠IP"]   { --cc-from: #F8ECD7; --cc-to: #F0DDBE; }
  .atb-ss-modal-head[data-vertical="古风大片"] { --cc-from: #E5EBF1; --cc-to: #D5DCE5; }
  .atb-ss-modal-head[data-vertical="武侠打斗"] { --cc-from: #ECE6DA; --cc-to: #DBD4C5; }
  .atb-ss-modal-head[data-vertical="二创"]     { --cc-from: #E5ECDC; --cc-to: #D5DDC4; }

  .atb-ss-modal-title {
    font-size: 22px;
    font-weight: 700;
    color: #1D1B18;
    margin: 0 0 10px;
    letter-spacing: -0.015em;
    line-height: 1.35;
  }
  .atb-ss-modal-highlight {
    font-size: 14px;
    color: #1D1B18;
    line-height: 1.55;
    margin: 0 0 8px;
    font-weight: 600;
    letter-spacing: -0.005em;
  }
  .atb-ss-modal-synopsis {
    font-size: 13px;
    color: rgba(0,0,0,0.68);
    line-height: 1.75;
    margin: 0;
  }
  /* hook 开场钩子段（白底 body 里） */
  .atb-ss-modal-hook {
    font-size: 13px;
    color: var(--text-2);
    line-height: 1.75;
    margin: 0;
    padding: 12px 14px;
    background: var(--warm-bg, #FBF9F4);
    border-left: 3px solid var(--text-mute);
    border-radius: 6px;
  }
  .atb-ss-modal-mask[data-vertical="CP情缘"]   .atb-ss-modal-hook { border-left-color: #C9849A; }
  .atb-ss-modal-mask[data-vertical="萌宠IP"]   .atb-ss-modal-hook { border-left-color: #C9A86E; }
  .atb-ss-modal-mask[data-vertical="古风大片"] .atb-ss-modal-hook { border-left-color: #8895AD; }
  .atb-ss-modal-mask[data-vertical="武侠打斗"] .atb-ss-modal-hook { border-left-color: #65625D; }
  .atb-ss-modal-mask[data-vertical="二创"]     .atb-ss-modal-hook { border-left-color: #7EA88D; }
  /* 分镜节拍列表 */
  .atb-ss-modal-beats {
    margin: 0;
    padding: 0;
    list-style: none;
    counter-reset: beat;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .atb-ss-modal-beats li {
    counter-increment: beat;
    font-size: 12.5px;
    color: var(--text-2);
    line-height: 1.6;
    padding: 8px 12px 8px 32px;
    background: var(--warm-bg, #FBF9F4);
    border-radius: 6px;
    position: relative;
  }
  .atb-ss-modal-beats li::before {
    content: counter(beat);
    position: absolute;
    left: 10px;
    top: 8px;
    width: 18px;
    height: 18px;
    background: #FFFFFF;
    color: var(--text-3);
    font-size: 10.5px;
    font-weight: 700;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-variant-numeric: tabular-nums;
    border: 1px solid var(--line);
  }
  .atb-ss-modal-beat-time {
    color: var(--text-3);
    font-size: 11.5px;
    font-variant-numeric: tabular-nums;
    margin-right: 4px;
  }
  .atb-ss-modal-beat-anchor {
    display: inline-flex;
    align-items: center;
    font-size: 10.5px;
    color: var(--step-color-d, var(--ok-deep));
    background: var(--step-color-bg, var(--ok-soft));
    padding: 0 6px;
    height: 16px;
    border-radius: 4px;
    margin-right: 6px;
    font-weight: 500;
    line-height: 1;
  }
  /* 标签 */
  .atb-ss-modal-tag {
    display: inline-flex;
    align-items: center;
    font-size: 11.5px;
    color: var(--text-2);
    background: var(--warm-bg, #FBF9F4);
    border: 1px solid var(--line);
    padding: 0 10px;
    height: 22px;
    border-radius: 6px;
    line-height: 1;
  }
  .atb-ss-modal-tags { display: flex; gap: 6px; flex-wrap: wrap; }
  .atb-ss-modal-body {
    padding: 18px 28px 4px;
    display: flex;
    flex-direction: column;
    gap: 18px;
  }
  .atb-ss-modal-section { display: flex; flex-direction: column; gap: 10px; }
  .atb-ss-modal-section-label {
    font-size: 11px;
    color: var(--text-3);
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
  }
  .atb-ss-modal-chars {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
  }
  .atb-ss-modal-char {
    display: inline-flex;
    align-items: center;
    height: 26px;
    padding: 0 12px;
    border-radius: 6px;
    background: var(--ok-soft);
    color: var(--ok-deep);
    border: 1px solid var(--ok);
    font-size: 12.5px;
    font-weight: 500;
    line-height: 1;
  }
  .atb-ss-modal-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px 18px;
  }
  @media (max-width: 580px) {
    .atb-ss-modal-grid { grid-template-columns: 1fr; }
  }
  .atb-ss-modal-kv {
    display: flex;
    align-items: baseline;
    gap: 8px;
    font-size: 12.5px;
  }
  .atb-ss-modal-kv .k {
    flex-shrink: 0;
    width: 60px;
    color: var(--text-3);
    font-weight: 500;
  }
  .atb-ss-modal-kv .v {
    color: var(--text);
    font-weight: 500;
  }
  .atb-ss-modal-tags {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin-top: 4px;
  }
  .atb-ss-modal-beats {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .atb-ss-modal-beat {
    display: grid;
    grid-template-columns: 22px 70px 1fr;
    gap: 10px;
    align-items: baseline;
    padding: 6px 10px;
    background: var(--warm-bg);
    border-radius: 6px;
    font-size: 12.5px;
  }
  .atb-ss-modal-beat-n {
    color: var(--text-mute);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
  }
  .atb-ss-modal-beat-t {
    color: var(--ok-deep);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    font-size: 11.5px;
  }
  .atb-ss-modal-beat-d {
    color: var(--text-2);
    line-height: 1.55;
  }
  .atb-ss-modal-config { display: flex; flex-direction: column; gap: 10px; }
  .atb-ss-modal-config-row {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
  }
  .atb-ss-modal-config-k {
    flex-shrink: 0;
    width: 50px;
    color: var(--text-3);
    font-size: 12.5px;
    font-weight: 500;
  }
  .atb-ss-modal-foot {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 28px 24px;
    border-top: 1px solid var(--line-soft);
    margin-top: 14px;
  }
  /* modal 内 .btn.primary 按 vertical 颜色 (--cc-tag-bg 是各 vertical 的深色) */
  .atb-ss-modal-mask[data-vertical="CP情缘"]   .atb-ss-modal .btn.primary { background: #C9849A; border-color: #C9849A; }
  .atb-ss-modal-mask[data-vertical="CP情缘"]   .atb-ss-modal .btn.primary:hover { background: #A86B80; border-color: #A86B80; }
  .atb-ss-modal-mask[data-vertical="萌宠IP"]   .atb-ss-modal .btn.primary { background: #C9A86E; border-color: #C9A86E; }
  .atb-ss-modal-mask[data-vertical="萌宠IP"]   .atb-ss-modal .btn.primary:hover { background: #8A6C2E; border-color: #8A6C2E; }
  .atb-ss-modal-mask[data-vertical="古风大片"] .atb-ss-modal .btn.primary { background: #8895AD; border-color: #8895AD; }
  .atb-ss-modal-mask[data-vertical="古风大片"] .atb-ss-modal .btn.primary:hover { background: #4B5468; border-color: #4B5468; }
  .atb-ss-modal-mask[data-vertical="武侠打斗"] .atb-ss-modal .btn.primary { background: #65625D; border-color: #65625D; }
  .atb-ss-modal-mask[data-vertical="武侠打斗"] .atb-ss-modal .btn.primary:hover { background: #3D3B37; border-color: #3D3B37; }
  .atb-ss-modal-mask[data-vertical="二创"]     .atb-ss-modal .btn.primary { background: #7EA88D; border-color: #7EA88D; }
  .atb-ss-modal-mask[data-vertical="二创"]     .atb-ss-modal .btn.primary:hover { background: #4A8A6E; border-color: #4A8A6E; }
  /* modal 内 chip active 也按 vertical */
  .atb-ss-modal-mask[data-vertical="CP情缘"]   .atb-ss-chip.active { background: #C9849A; border-color: #C9849A; }
  .atb-ss-modal-mask[data-vertical="萌宠IP"]   .atb-ss-chip.active { background: #C9A86E; border-color: #C9A86E; }
  .atb-ss-modal-mask[data-vertical="古风大片"] .atb-ss-chip.active { background: #8895AD; border-color: #8895AD; }
  .atb-ss-modal-mask[data-vertical="武侠打斗"] .atb-ss-chip.active { background: #65625D; border-color: #65625D; }
  .atb-ss-modal-mask[data-vertical="二创"]     .atb-ss-chip.active { background: #7EA88D; border-color: #7EA88D; }
  /* modal 内角色 chip */
  .atb-ss-modal-mask[data-vertical="CP情缘"]   .atb-ss-modal-char { background: rgba(201,132,154,0.12); color: #A86B80; border-color: #C9849A; }
  .atb-ss-modal-mask[data-vertical="萌宠IP"]   .atb-ss-modal-char { background: rgba(201,168,110,0.14); color: #8A6C2E; border-color: #C9A86E; }
  .atb-ss-modal-mask[data-vertical="古风大片"] .atb-ss-modal-char { background: rgba(136,149,173,0.14); color: #4B5468; border-color: #8895AD; }
  .atb-ss-modal-mask[data-vertical="武侠打斗"] .atb-ss-modal-char { background: rgba(101,98,93,0.12); color: #3D3B37; border-color: #65625D; }
  .atb-ss-modal-mask[data-vertical="二创"]     .atb-ss-modal-char { background: rgba(126,168,141,0.12); color: #4A8A6E; border-color: #7EA88D; }

  /* v26 storystep · 已生成脚本卡 — 左信息 / 右按钮（自适应换行） */
  .atb-ss-script-head {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 18px;
    align-items: flex-start;
  }
  .atb-ss-script-meta { min-width: 0; }
  .atb-ss-script-label {
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 10px;
  }
  .atb-ss-script-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 6px;
    letter-spacing: -0.015em;
    line-height: 1.35;
  }
  .atb-ss-script-summary {
    color: var(--text-2);
    font-size: 14px;
    line-height: 1.7;
    margin: 0;
  }
  .atb-ss-script-hint {
    margin-top: 10px;
    font-size: 12px;
    color: var(--text-3);
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
  }
  .atb-ss-script-hint span:not(.atb-ss-script-hint-sep) {
    font-weight: 600;
    color: var(--text-mute);
  }
  .atb-ss-script-hint-sep { color: var(--text-mute); opacity: 0.5; }
  .atb-ss-script-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
    flex-wrap: wrap;
    justify-content: flex-end;
  }
  .atb-ss-script-actions-bottom {
    margin-top: 18px;
  }
  /* v83-B: 顶部 banner 右下角 导出 Excel 按钮位 */
  .atb-ss-script-head { align-items: flex-end; }
  .atb-ss-script-head-actions {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    flex-shrink: 0;
  }
  @media (max-width: 760px) {
    .atb-ss-script-head { grid-template-columns: 1fr; align-items: flex-start; }
    .atb-ss-script-head-actions { justify-content: flex-start; }
    .atb-ss-script-actions { justify-content: flex-start; }
    .atb-ss-script-actions-bottom { justify-content: flex-start; }
  }

  /* v25 storystep tabs：Claude.ai 风下划线，active 深炭 */
  .atb-ss-tab {
    border: none;
    background: transparent;
    padding: 12px 18px;
    font-size: 13.5px;
    color: var(--text-3);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: all 120ms cubic-bezier(0.16, 1, 0.3, 1);
    font-family: inherit;
    font-weight: 500;
  }
  .atb-ss-tab:hover { color: var(--text); }
  .atb-ss-tab.active {
    color: var(--text);
    border-bottom-color: var(--text);
    font-weight: 600;
  }
  .atb-ss-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }
  /* v30 chip · radius 6 方圆角 + step 配色 */
  .atb-ss-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    background: #FFFFFF;
    color: var(--text-2);
    padding: 0 12px;
    height: 28px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 120ms cubic-bezier(0.16, 1, 0.3, 1);
    font-family: inherit;
    line-height: 1;
    white-space: nowrap;
  }
  .atb-ss-chip:hover { border-color: var(--step-color, var(--ok)); color: var(--step-color-d, var(--ok-deep)); background: var(--warm-bg); }
  .atb-ss-chip.active {
    background: var(--step-color, var(--ok));
    color: #FFFFFF;
    border-color: var(--step-color, var(--ok));
  }
  .atb-ss-config-row {
    display: flex;
    gap: 16px;
  }
  /* v25 UTEN posts-table 风：暖白底 + 暖灰头 + 行 hover 暖白 */
  .atb-ss-tl-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
  }
  .atb-ss-tl-table th,
  .atb-ss-tl-table td {
    border-bottom: 1px solid var(--line-soft);
    padding: 12px 10px;
    text-align: left;
    vertical-align: top;
  }
  .atb-ss-tl-table tbody tr {
    transition: background 120ms;
  }
  .atb-ss-tl-table tbody tr:hover {
    background: var(--warm-bg);
  }
  .atb-ss-tl-table th {
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-weight: 600;
    background: transparent;
    border-bottom: 1px solid var(--line);
    padding-bottom: 10px;
  }
  .atb-ss-tl-time {
    width: 64px;
    color: var(--text);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    font-size: 12.5px;
    white-space: nowrap;
  }
  .atb-ss-tl-shot {
    color: var(--text);
    line-height: 1.65;
  }
  .atb-ss-tl-chars {
    width: 140px;
  }
  .atb-ss-charcards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 10px;
  }
  .atb-ss-charcard {
    background: var(--bg-soft, #FAF7F3);
    border: 1px solid var(--line, #E8E2D8);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 12.5px;
    line-height: 1.6;
  }
  .atb-ss-charcard-name {
    font-size: 14.5px;
    font-weight: 600;
    color: var(--accent-deep);
    margin-bottom: 6px;
  }
  .atb-ss-charcard-row {
    display: flex;
    gap: 8px;
    margin-top: 3px;
    color: var(--text-2);
  }
  .atb-ss-charcard-key {
    flex-shrink: 0;
    width: 60px;
    font-size: 11px;
    color: var(--text-3);
    font-weight: 500;
  }
  .atb-ss-charcard-warn { color: #C77F2E; }
  .atb-ss-charcard-warn .atb-ss-charcard-key { color: #C77F2E; }
  .atb-ss-charcard-needsref {
    border-color: #E89B9B;
    background: linear-gradient(135deg, #FFE5E5 0%, #FFEFEF 100%);
  }
  .atb-ss-charcard-warn-banner {
    margin-top: 6px;
    padding: 6px 8px;
    background: rgba(232, 155, 155, 0.2);
    border-left: 3px solid #A94545;
    border-radius: 3px;
    font-size: 11px;
    color: #A94545;
    line-height: 1.5;
  }
  .atb-ss-charcard-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
  }
  .atb-ss-charcard-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
  }
  .atb-ss-charcard-refimg {
    margin-top: 8px;
    margin-bottom: 4px;
    cursor: zoom-in;
    border-radius: 6px;
    overflow: hidden;
    background: #FFF;
    border: 1px solid var(--line, #E8E2D8);
  }
  .atb-ss-charcard-refimg img {
    width: 100%;
    max-height: 200px;
    object-fit: contain;
    display: block;
  }

  .atb-ss-beats-details {
    margin-top: 10px;
    border-top: 1px dashed var(--line, #E8E2D8);
    padding-top: 8px;
  }
  .atb-ss-beats-details summary {
    cursor: pointer; user-select: none;
    font-size: 11.5px; color: var(--text-3);
    padding: 4px 0;
  }
  .atb-ss-beats-details summary:hover { color: var(--accent-deep); }
  .atb-ss-beats-details[open] summary { color: var(--accent-deep); margin-bottom: 6px; }
  .atb-ss-beats-table {
    width: 100%; border-collapse: collapse;
    font-size: 11.5px; line-height: 1.55;
    background: var(--bg-soft, #FAF7F3);
    border-radius: 6px; overflow: hidden;
  }
  .atb-ss-beats-table th {
    background: var(--bg-soft-2, #F5F0E8);
    color: var(--text-2);
    font-weight: 600; font-size: 11px;
    padding: 5px 8px; text-align: left;
  }
  .atb-ss-beats-table td {
    padding: 5px 8px; vertical-align: top;
    border-top: 1px solid var(--line, #E8E2D8);
    color: var(--text);
  }
  .atb-ss-beats-table .atb-ss-beat-t { color: var(--accent-deep); white-space: nowrap; font-variant-numeric: tabular-nums; font-weight: 600; }
  .atb-ss-beats-table .atb-ss-beat-cam { color: var(--text-2); font-size: 11px; }
  .atb-ss-beats-table .atb-ss-beat-focus { color: var(--text-2); font-size: 11px; font-weight: 500; }
  .atb-ss-beats-table .atb-ss-beat-sfx { color: var(--text-3); font-size: 11px; font-style: italic; }
  .atb-ss-beats-table .atb-ss-beat-dlg { color: var(--text-2); font-size: 11px; }
  .atb-ss-env-details {
    margin-top: 10px;
    border-top: 1px dashed var(--line, #E8E2D8);
    padding-top: 8px;
  }
  .atb-ss-env-details summary {
    cursor: pointer; user-select: none;
    font-size: 11.5px; color: var(--text-3);
    padding: 4px 0;
  }
  .atb-ss-env-details summary:hover { color: var(--accent-deep); }
  .atb-ss-env-details[open] summary { color: var(--accent-deep); margin-bottom: 4px; }
  .atb-ss-env-body {
    background: var(--bg-soft, #FAF7F3);
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 11.5px;
    line-height: 1.65;
    color: var(--text);
  }
  .atb-ss-env-body > div { margin-top: 2px; }
  .atb-ss-env-body > div:first-child { margin-top: 0; }
  .atb-ss-env-key {
    display: inline-block;
    width: 56px;
    color: var(--text-3);
    font-size: 11px;
    font-weight: 500;
    margin-right: 6px;
  }
  /* timeline 详情行：env + beats 抽出来跨满 timeline 6 列，避免被 shot td 压窄 */
  .atb-ss-tl-detail-row td {
    padding: 4px 12px 14px;
    background: #FFFFFF;
    border-top: none;
  }
  .atb-ss-tl-detail-row .atb-ss-env-details,
  .atb-ss-tl-detail-row .atb-ss-beats-details {
    margin-top: 0;
    border-top: none;
    padding-top: 0;
  }
  .atb-ss-tl-detail-row .atb-ss-env-details { margin-bottom: 6px; }
  .atb-ss-tl-detail-row .atb-ss-beats-table {
    font-size: 12.5px;
    line-height: 1.6;
    table-layout: fixed;
  }
  .atb-ss-tl-detail-row .atb-ss-beats-table th,
  .atb-ss-tl-detail-row .atb-ss-beats-table td {
    padding: 7px 10px;
    word-break: break-word;
    overflow-wrap: break-word;
  }
  .atb-ss-tl-detail-row .atb-ss-beats-table .nsh-tag {
    display: inline-block;
    white-space: nowrap;
  }
  .atb-ss-tl-detail-row .atb-ss-beats-table .atb-ss-beat-cam,
  .atb-ss-tl-detail-row .atb-ss-beats-table .atb-ss-beat-focus,
  .atb-ss-tl-detail-row .atb-ss-beats-table .atb-ss-beat-sfx,
  .atb-ss-tl-detail-row .atb-ss-beats-table .atb-ss-beat-dlg {
    font-size: 12px;
  }
  /* 脚本生成中骨架条（复用 atb-pulse 动画） */
  .atb-ss-skeleton-bar {
    background: var(--atb-wg100, #F5F0E8);
    border-radius: 4px;
    height: 14px;
    animation: atb-pulse 1.5s ease-in-out infinite;
  }
  .atb-ss-skeleton-bar.is-tall { height: 22px; }
  .atb-ss-skeleton-bar.is-small { height: 11px; }
  .hero-eyebrow {
    font-size: 11.5px;
    color: var(--text-3);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 12px;
    font-weight: 600;
  }
  .hero-title {
    font-size: 28px;
    font-weight: 600;
    margin: 0 0 12px;
    letter-spacing: -0.01em;
    line-height: 1.3;
  }
  .hero-lede {
    color: var(--text-2);
    font-size: 14.5px;
    line-height: 1.7;
    max-width: 720px;
    margin: 0;
  }
  .flow-pipeline {
    display: flex;
    flex-wrap: nowrap;
    align-items: stretch;
    gap: 6px;
    overflow-x: auto;
    padding: 4px 0;
  }
  .flow-stage {
    flex: 1;
    min-width: 140px;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 12px 14px;
    background: var(--bg);
  }
  .stage-label {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 6px;
  }
  .stage-api {
    font-size: 10px;
    background: var(--accent-soft);
    color: var(--accent-deep);
    padding: 1px 7px;
    border-radius: 99px;
    font-weight: 500;
    white-space: nowrap;
  }
  .stage-desc {
    font-size: 11.5px;
    color: var(--text-3);
    margin-bottom: 10px;
    min-height: 28px;
    line-height: 1.45;
  }
  .stage-tools { display: flex; flex-direction: column; gap: 4px; }
  .tool-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: 4px;
    cursor: pointer;
    font-family: inherit;
    text-align: left;
    font-size: 12.5px;
    color: var(--text);
    transition: all .12s;
  }
  .tool-chip:hover {
    background: var(--accent-soft);
    border-color: #ECC8B6;
    color: var(--accent-deep);
  }
  .tool-chip .tc-num {
    font-size: 11px;
    color: var(--text-3);
    font-variant-numeric: tabular-nums;
    width: 22px;
    flex-shrink: 0;
    text-align: right;
  }
  .tool-chip:hover .tc-num { color: var(--accent); }
  .tool-chip-mini {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    background: var(--bg-soft);
    border: 1px solid var(--line);
    border-radius: 99px;
    cursor: pointer;
    font-family: inherit;
    font-size: 11.5px;
    color: var(--text-2);
    margin-right: 4px;
    transition: all .12s;
  }
  .tool-chip-mini:hover {
    border-color: var(--accent);
    color: var(--accent-deep);
  }
  .flow-arrow {
    display: flex;
    align-items: center;
    color: var(--text-mute);
    font-size: 16px;
    flex-shrink: 0;
    padding: 0 4px;
  }
  .api-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .api-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border: 1px solid var(--line);
    border-radius: 5px;
    background: var(--bg);
  }
  .api-card.ok {
    background: var(--ok-soft);
    border-color: #DCE6D5;
  }
  .api-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
  }
  .api-card.ok .api-icon { background: var(--ok); color: white; }
  .api-card.warn .api-icon { background: var(--warn); color: white; }
  .api-info { flex: 1; min-width: 0; }
  .api-name {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text);
  }
  .api-meta {
    font-size: 11.5px;
    color: var(--text-3);
    margin-top: 1px;
  }
  .quick-start {
    margin: 0;
    padding-left: 20px;
    font-size: 13.5px;
    color: var(--text-2);
    line-height: 1.7;
  }
  .quick-start li { margin-bottom: 8px; }
  .quick-start li b { color: var(--text); }
  @media (max-width: 1100px) {
    .flow-pipeline { flex-wrap: wrap; }
  }

  /* ===== Tool 13: NSH Creative Studio (vertical tabs + card grid) ===== */
  .nsh-tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--line);
    margin: 0 -4px;
    padding: 0 4px;
  }
  .nsh-tab {
    padding: 8px 16px;
    border: none;
    background: transparent;
    font-family: inherit;
    font-size: 13.5px;
    color: var(--text-2);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all .12s;
    margin-bottom: -1px;
  }
  .nsh-tab:hover { color: var(--text); }
  .nsh-tab.active {
    color: var(--accent-deep);
    border-bottom-color: var(--accent);
    font-weight: 600;
  }
  .nsh-cards-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  @media (max-width: 800px) {
    .nsh-cards-grid { grid-template-columns: 1fr; }
  }
  .nsh-card {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 14px 16px;
    background: var(--card);
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .nsh-card-title {
    font-size: 14.5px;
    font-weight: 600;
    color: var(--text);
  }
  .nsh-card-meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }
  .nsh-meta-line {
    font-size: 11.5px;
    color: var(--text-2);
  }
  .nsh-meta-line b {
    color: var(--text-3);
    font-weight: 600;
    margin-right: 4px;
  }
  .nsh-card-hook {
    font-size: 13px;
    color: var(--text-2);
    line-height: 1.55;
    background: var(--bg-soft);
    padding: 8px 10px;
    border-radius: 4px;
    border-left: 2px solid var(--accent);
  }
  .nsh-card-detail {
    font-size: 12px;
    color: var(--text-3);
  }
  .nsh-card-detail summary {
    cursor: pointer;
    font-size: 11.5px;
    color: var(--text-3);
    margin-bottom: 4px;
    user-select: none;
  }
  .nsh-card-detail summary:hover { color: var(--text-2); }
  .nsh-beats {
    margin: 6px 0 6px 18px;
    padding: 0;
    font-size: 12px;
    color: var(--text-2);
    line-height: 1.55;
  }
  .nsh-beats li { margin-bottom: 2px; }
  .nsh-card-style {
    font-size: 11.5px;
    color: var(--text-3);
    font-style: italic;
    padding-top: 6px;
  }
  .nsh-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
  }
  .nsh-tag {
    font-size: 10.5px;
    background: var(--accent-soft);
    color: var(--accent-deep);
    padding: 2px 7px;
    border-radius: 99px;
    font-weight: 500;
  }
  .nsh-card-actions {
    margin-top: auto;
    padding-top: 6px;
  }

  /* ===== Tool 5 gptprompt: structured blocks ===== */
  .struct-list { display: grid; gap: 8px; }
  .struct-block {
    border-left: 3px solid var(--line);
    padding: 8px 12px;
    background: var(--bg-soft);
    border-radius: 0 5px 5px 0;
  }
  .struct-block.block-ip { border-left-color: #B47B27; }
  .struct-block.block-lock { border-left-color: var(--accent); }
  .struct-block.block-scene { border-left-color: var(--text-3); }
  .struct-block.block-style { border-left-color: var(--ok); }
  .struct-block.block-slop { border-left-color: var(--err); }
  .struct-label {
    font-size: 10.5px;
    color: var(--text-3);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 4px;
  }
  .struct-body {
    font-size: 12.5px;
    color: var(--text-2);
    line-height: 1.55;
  }

  /* ===== imagestep (Step 2) — is- 前缀 ===== */
  .atb-is-topbar { border-color: var(--accent-soft); }
  .atb-is-emptyhint { background: var(--bg-soft, #FAF7F3); }

  /* v27 Lightbox · 浅暗底 + 圆角 + 极简控件 */
  .aat-lb-ov {
    position: fixed; inset: 0;
    background: rgba(28,25,23,0.78);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 200;
    display: none;
    align-items: center; justify-content: center;
    cursor: zoom-out;
    animation: aat-lb-fade 200ms ease;
  }
  @keyframes aat-lb-fade {
    from { opacity: 0; backdrop-filter: blur(0px); }
    to { opacity: 1; backdrop-filter: blur(12px); }
  }
  .aat-lb-ov.show { display: flex; }
  .aat-lb-ov img {
    max-width: 88vw; max-height: 88vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.45);
    cursor: default;
    animation: aat-lb-pop 240ms cubic-bezier(0.16, 1, 0.3, 1);
  }
  @keyframes aat-lb-pop {
    from { opacity: 0; transform: scale(0.96); }
    to { opacity: 1; transform: scale(1); }
  }
  .aat-lb-close, .aat-lb-download {
    position: fixed; top: 24px;
    color: rgba(255,255,255,0.85);
    font-size: 18px;
    cursor: pointer; z-index: 201;
    opacity: 1;
    transition: all 160ms cubic-bezier(0.16, 1, 0.3, 1);
    width: 40px; height: 40px;
    display: flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 50%;
    user-select: none;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }
  .aat-lb-close:hover, .aat-lb-download:hover {
    background: rgba(255,255,255,0.16);
    border-color: rgba(255,255,255,0.25);
    color: #fff;
  }
  .aat-lb-close { right: 24px; }
  .aat-lb-download { right: 76px; font-size: 16px; }

  /* 任务进行中 badge（扒自 comic-studio-v4）*/
  .aat-task-badge {
    margin: 8px 12px 4px;
    padding: 6px 10px;
    background: linear-gradient(135deg, #FFF1E0 0%, #FFE5C4 100%);
    border: 1px solid #F5C281;
    border-radius: 6px;
    font-size: 11.5px;
    color: #8B5A1F;
    cursor: pointer;
    user-select: none;
    transition: background .15s;
    line-height: 1.5;
  }
  .aat-task-badge:hover { background: #FFE5C4; }
  .aat-task-badge .aat-task-spinner {
    display: inline-block;
    width: 10px; height: 10px;
    border: 2px solid #C77F2E;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.9s linear infinite;
    vertical-align: -1px;
    margin-right: 5px;
  }
  @keyframes spin { to { transform: rotate(360deg); } }
  .aat-task-list {
    margin: 4px 12px 0;
    background: var(--bg-soft, #FAF7F3);
    border-radius: 6px;
    padding: 6px 10px;
    font-size: 11px;
    color: var(--text-2);
    line-height: 1.6;
  }
  .aat-task-list-item { margin-top: 2px; display: flex; gap: 6px; align-items: center; }
  .aat-task-list-item:first-child { margin-top: 0; }
  .aat-task-list-item .dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: #C77F2E;
    flex-shrink: 0;
  }

  /* legacy script warning banner */
  .atb-is-legacy-banner {
    background: linear-gradient(135deg, #FFF1E0 0%, #FFE5C4 100%);
    border: 1px solid #F5C281;
    margin-bottom: 14px;
  }

  /* assetlib banner */
  .atb-is-assetlib-banner {
    background: linear-gradient(135deg, #FFF6E5 0%, #FFEFD5 100%);
    border: 1px solid #F5D9A8;
    margin-bottom: 14px;
  }
  .atb-is-assetlib-banner.atb-is-assetlib-ready {
    background: linear-gradient(135deg, #E8F5E9 0%, #DCEFD7 100%);
    border-color: #A5D6A7;
  }
  .atb-is-assetlib-row {
    display: flex; justify-content: space-between; align-items: center;
    gap: 16px; flex-wrap: wrap;
  }
  .atb-is-assetlib-text { flex: 1; min-width: 240px; }
  .atb-is-assetlib-title { font-size: 14px; font-weight: 600; }
  .atb-is-assetlib-desc {
    font-size: 12px; color: var(--text-2);
    margin-top: 4px; line-height: 1.55;
  }
  .atb-is-assetlib-actions { display: flex; gap: 6px; flex-wrap: wrap; }
  .atb-is-assetlib-btn { white-space: nowrap; }

  /* v26 imagestep 双栏布局 — 左人物卡 / 右九宫格分镜 */
  .atb-atb-is-layout {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  /* v27 ctx 卡 · 紧凑左信息右按钮 + chip 化数字 */
  .atb-atb-is-ctx {
    background: #FFFFFF;
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 16px 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    box-shadow: 0 1px 3px rgba(0,0,0,0.025);
  }
  .atb-atb-is-ctx-left {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
    flex: 1;
  }
  .atb-atb-is-ctx-main {
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 0;
  }
  .atb-atb-is-ctx-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.005em;
  }
  .atb-atb-is-ctx-meta {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
  }
  .atb-atb-is-ctx-pill {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: 11.5px;
    color: var(--text-2);
    background: var(--warm-bg, #FBF9F4);
    padding: 0 10px;
    height: 22px;
    border-radius: 6px;
    border: 1px solid var(--line);
    font-variant-numeric: tabular-nums;
    line-height: 1;
  }
  .atb-atb-is-ctx-pill-n {
    color: var(--ok-deep);
    font-weight: 700;
  }
  .atb-atb-is-ctx-right { flex-shrink: 0; }

  /* v28 单栏 main · 每 panel 内部自适应 grid，避免左右不齐 */
  .atb-atb-is-main {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .atb-atb-is-col {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  /* bridge 卡 — 第三层（Seedance prompt 浮在双栏底下） */
  .atb-atb-is-bridge {
    background: #FFFFFF;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.025);
  }
  .atb-atb-is-bridge-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
  }
  .atb-atb-is-bridge-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.005em;
  }
  .atb-atb-is-bridge-meta {
    font-size: 11.5px;
    color: var(--text-3);
    margin-top: 2px;
    font-variant-numeric: tabular-nums;
  }
  .atb-atb-is-bridge-cta {
    background: var(--ok);
    color: #FFFFFF;
    border: 1px solid var(--ok);
    border-radius: 6px;
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    transition: background 160ms, border-color 160ms;
  }
  .atb-atb-is-bridge-cta:hover { background: var(--ok-deep); border-color: var(--ok-deep); }

  /* 单栏时人物卡 panel 内部 grid 改 2 列（双栏时已经够窄了，保持单列） */
  @media (min-width: 1281px) {
    .atb-is-tr-grid { grid-template-columns: 1fr; }
    .atb-is-grid-grid { grid-template-columns: 1fr; }
  }

  /* v26 imagestep topbar — 左右双栏 + 数字 stat 卡（保留兼容 — 当前不再用） */
  .atb-is-topbar { padding: 18px 22px; margin-bottom: 14px; }
  .atb-is-topbar-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 18px;
    align-items: center;
  }
  .atb-is-topbar-meta { min-width: 0; }
  .atb-is-topbar-label {
    font-size: 11px;
    color: var(--text-3);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 6px;
  }
  .atb-is-topbar-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 10px;
    letter-spacing: -0.005em;
    line-height: 1.4;
  }
  .atb-is-topbar-stats {
    display: flex;
    align-items: baseline;
    gap: 18px;
    flex-wrap: wrap;
    font-size: 12px;
    color: var(--text-2);
  }
  .atb-is-stat {
    display: inline-flex;
    align-items: baseline;
    gap: 4px;
  }
  .atb-is-stat-n {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    font-variant-numeric: tabular-nums;
  }
  .atb-is-stat-sub {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-mute);
  }
  .atb-is-stat-k {
    font-size: 11.5px;
    color: var(--text-3);
    letter-spacing: 0.04em;
  }
  .atb-is-stat-sep {
    width: 1px;
    height: 14px;
    background: var(--line);
    display: inline-block;
    align-self: center;
  }
  .atb-is-topbar-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
    flex-wrap: wrap;
  }
  @media (max-width: 820px) {
    .atb-is-topbar-grid { grid-template-columns: 1fr; }
    .atb-is-topbar-actions { justify-content: flex-start; }
  }

  /* v26 panel — 收紧 + SVG icon 适配 */
  .atb-is-panel { padding: 0; overflow: hidden; }
  .atb-is-panel-head {
    display: flex; align-items: baseline; gap: 10px;
    padding: 14px 20px;
    user-select: none;
    border-bottom: 1px solid transparent;
  }
  .atb-is-panel-arrow {
    display: inline-block; width: 12px;
    color: var(--text-mute); font-size: 11px;
    transition: transform 160ms cubic-bezier(0.16, 1, 0.3, 1);
  }
  .atb-is-panel-arrow.open { transform: rotate(90deg); color: var(--text); }
  .atb-is-panel-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px; height: 24px;
    border-radius: 6px;
    background: var(--warm-bg, #FBF9F4);
    color: var(--text-2);
    flex-shrink: 0;
  }
  .atb-is-panel-icon svg { display: block; }
  .atb-is-panel-title {
    font-weight: 700;
    font-size: 14px;
    color: var(--text);
    letter-spacing: -0.005em;
  }
  .atb-is-panel-sub {
    margin-left: auto;
    font-size: 11.5px;
    color: var(--text-3);
    font-variant-numeric: tabular-nums;
  }
  .atb-is-panel-body {
    padding: 6px 20px 20px 20px;
    border-top: 1px solid var(--line-soft, #EFEAE3);
  }

  /* element rows */
  .atb-is-elem-section { margin: 14px 0 4px 0; }
  .atb-is-elem-section-head {
    font-size: 13px; font-weight: 600;
    color: var(--text-2);
    padding-bottom: 6px;
    border-bottom: 1px dashed var(--line-soft, #EFEAE3);
    margin-bottom: 8px;
  }
  .atb-is-elem-empty {
    font-size: 12.5px; color: var(--text-3);
    padding: 6px 0; font-style: italic;
  }
  .atb-is-elem-row {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 6px;
    border-bottom: 1px solid var(--line-soft, #EFEAE3);
  }
  .atb-is-elem-row:last-child { border-bottom: none; }
  .atb-is-elem-thumb {
    width: 44px; height: 44px;
    border-radius: 5px; object-fit: cover;
    border: 1px solid var(--line);
    background: var(--card);
    flex-shrink: 0;
  }
  .atb-is-elem-thumb-empty {
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; color: var(--text-3);
    background: var(--bg-soft, #FAF7F3);
  }
  .atb-is-elem-meta { flex: 1; min-width: 0; }
  .atb-is-elem-name { font-size: 13px; font-weight: 500; }
  .atb-is-elem-count {
    color: var(--text-3); font-weight: 400; font-size: 11.5px; margin-left: 4px;
  }
  .atb-is-elem-err {
    font-size: 11.5px; color: var(--err);
    margin-top: 3px;
  }
  .atb-is-elem-actions {
    display: flex; gap: 5px;
    align-items: center;
    flex-wrap: wrap;
  }
  .atb-is-elem-busy {
    display: flex; align-items: center; gap: 6px;
    font-size: 12px; color: var(--text-3);
  }
  .atb-is-elem-source {
    display: inline-flex;
    align-items: center;
    font-size: 11px;
    color: var(--ok-deep);
    background: var(--ok-soft);
    padding: 0 9px;
    height: 20px;
    border-radius: 6px;
    line-height: 1;
    font-weight: 500;
  }
  .atb-is-status-dot {
    display: inline-block; width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--text-3); flex-shrink: 0;
  }
  .atb-is-status-dot.ok { background: var(--ok); }
  .atb-is-status-dot.busy { background: var(--accent); animation: is-pulse 1.2s infinite; }
  .atb-is-status-dot.err { background: var(--err); }
  @keyframes is-pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
  .atb-is-btn-mini {
    padding: 3px 10px; font-size: 11.5px;
  }

  /* v42 主区左右双 panel —— 人物卡 + 场景卡同行 */
  .atb-is-row-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    align-items: stretch;
  }
  @media (max-width: 880px) {
    .atb-is-row-2col { grid-template-columns: 1fr; }
  }

  /* ==========================================================================
     2026-05-16 统一故事板（unified storyboard）— Step 2 单一入口
     ========================================================================== */
  .atb-is-uni-panel {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
  }
  .atb-is-uni-section {
    padding: 20px 24px;
    border-bottom: 1px solid var(--line);
  }
  .atb-is-uni-section:last-child { border-bottom: none; }
  .atb-is-uni-section-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
  }
  .atb-is-uni-section-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.005em;
  }
  .atb-is-uni-section-sub {
    font-size: 11.5px;
    color: var(--text-3);
    flex: 1;
  }
  .atb-is-uni-redo {
    background: transparent;
    border: 1px solid var(--line);
    color: var(--text-3);
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 11.5px;
    cursor: pointer;
    font-family: inherit;
  }
  .atb-is-uni-redo:hover {
    color: var(--text);
    border-color: var(--text-3);
  }

  /* 脚本预览 */
  .atb-is-uni-script-preview {
    background: var(--warm-bg, #FBF9F4);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 14px 16px;
    font-size: 12px;
    line-height: 1.65;
    color: var(--text-2);
    margin: 0;
    max-height: 220px;
    overflow-y: auto;
    white-space: pre-wrap;
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  }

  /* 资产准备区 */
  .atb-is-uni-tip {
    background: var(--warm-bg, #FBF9F4);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 10px 14px;
    font-size: 12px;
    color: var(--text-2);
    margin-bottom: 14px;
    line-height: 1.6;
  }
  .atb-is-uni-empty {
    padding: 24px 0;
    text-align: center;
  }
  .atb-is-uni-empty-desc {
    margin: 0 0 14px;
    font-size: 12.5px;
    color: var(--text-3);
    line-height: 1.6;
  }
  .atb-is-uni-cta-main {
    padding: 10px 22px;
    font-size: 13px;
    font-weight: 500;
  }
  .atb-is-uni-busy {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    padding: 36px 0;
    background: var(--warm-bg, #FBF9F4);
    border: 1px dashed var(--line);
    border-radius: 8px;
  }
  .atb-is-uni-busy .spinner {
    width: 22px;
    height: 22px;
  }
  .atb-is-uni-busy-text {
    font-size: 12px;
    color: var(--text-3);
    text-align: center;
  }
  .atb-is-uni-busy-text > div {
    margin-bottom: 4px;
  }
  .atb-is-uni-busy-sub {
    font-size: 11px;
    color: var(--text-mute);
    font-variant-numeric: tabular-nums;
  }
  .atb-is-uni-busy-large {
    padding: 48px 0;
  }
  .atb-is-uni-validation {
    background: rgba(196, 121, 110, 0.06);
    border: 1px solid var(--err-soft);
    border-radius: 6px;
    padding: 10px 14px;
    margin-bottom: 12px;
  }
  .atb-is-uni-validation-item {
    font-size: 11.5px;
    color: var(--err-soft, #A03328);
    line-height: 1.7;
  }
  .atb-is-uni-error-block {
    text-align: center;
    padding: 24px 0;
  }

  /* 资产卡 grid */
  .atb-is-asset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 10px;
  }
  .atb-is-asset-card {
    background: #FFFFFF;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .atb-is-asset-card-head {
    display: flex;
    gap: 12px;
    align-items: flex-start;
  }
  .atb-is-asset-thumb {
    width: 56px;
    height: 56px;
    border-radius: 6px;
    object-fit: cover;
    border: 1px solid var(--line);
    cursor: zoom-in;
    flex-shrink: 0;
  }
  .atb-is-asset-thumb-empty {
    width: 56px;
    height: 56px;
    border-radius: 6px;
    border: 1px dashed var(--line);
    background: var(--warm-bg, #FBF9F4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10.5px;
    color: var(--text-mute);
    flex-shrink: 0;
    cursor: default;
  }
  .atb-is-asset-card-meta {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .atb-is-asset-card-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
  }
  .atb-is-asset-kind {
    font-size: 10.5px;
    color: var(--text-3);
    font-weight: 400;
    background: var(--warm-bg, #FBF9F4);
    padding: 1px 6px;
    border-radius: 4px;
    border: 1px solid var(--line);
  }
  .atb-is-asset-priority {
    font-size: 10.5px;
    font-weight: 500;
    padding: 1px 6px;
    border-radius: 4px;
    border: 1px solid;
  }
  .atb-is-asset-priority-critical {
    color: #8A2E20;
    background: rgba(196, 52, 45, 0.08);
    border-color: rgba(196, 52, 45, 0.18);
  }
  .atb-is-asset-priority-recommended {
    color: #6B4F22;
    background: rgba(201, 168, 110, 0.10);
    border-color: rgba(201, 168, 110, 0.25);
  }
  .atb-is-asset-priority-optional {
    color: var(--text-3);
    background: transparent;
    border-color: var(--line);
  }
  .atb-is-asset-hint-input {
    font-size: 11.5px;
    color: var(--text-2);
    background: transparent;
    border: 1px solid transparent;
    border-radius: 4px;
    padding: 3px 6px;
    width: 100%;
    font-family: inherit;
    line-height: 1.5;
  }
  .atb-is-asset-hint-input:hover {
    border-color: var(--line);
  }
  .atb-is-asset-hint-input:focus {
    outline: none;
    border-color: var(--text-3);
    background: var(--warm-bg, #FBF9F4);
  }

  /* 三态 radio */
  .atb-is-tri-radio-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
  }
  .atb-is-tri-radio {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 10px 8px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #FFFFFF;
    cursor: pointer;
    text-align: center;
    transition: border-color 160ms, background 160ms;
  }
  .atb-is-tri-radio:hover:not(.disabled) {
    border-color: var(--text-3);
    background: var(--warm-bg, #FBF9F4);
  }
  .atb-is-tri-radio input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
  }
  .atb-is-tri-radio.active {
    border-color: var(--text);
    background: var(--warm-bg, #FBF9F4);
  }
  .atb-is-tri-radio.disabled {
    opacity: 0.5;
    cursor: not-allowed;
  }
  .atb-is-tri-radio-label {
    font-size: 11.5px;
    font-weight: 500;
    color: var(--text);
    line-height: 1.3;
  }
  .atb-is-tri-radio-hint {
    font-size: 10px;
    color: var(--text-3);
    line-height: 1.3;
  }
  .atb-is-tri-radio.active .atb-is-tri-radio-hint {
    color: var(--text-2);
  }

  /* 输出区：done 大图 */
  .atb-is-uni-result {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .atb-is-uni-result-img-wrap {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--warm-bg, #FBF9F4);
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
    cursor: zoom-in;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .atb-is-uni-result-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
  }
  .atb-is-uni-result-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
  }

  /* ==========================================================================
     2026-05-16 PM v2 多段故事板 + 反馈重生
     ========================================================================== */
  /* 段落规划区 */
  .atb-is-seg-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }
  .atb-is-seg-card {
    background: #FFFFFF;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .atb-is-seg-card-head {
    display: flex;
    gap: 8px;
    align-items: center;
  }
  .atb-is-seg-title-input {
    flex: 1;
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    background: transparent;
    border: 1px solid transparent;
    border-radius: 4px;
    padding: 4px 6px;
    font-family: inherit;
  }
  .atb-is-seg-title-input:hover {
    border-color: var(--line);
  }
  .atb-is-seg-title-input:focus {
    outline: none;
    border-color: var(--text-3);
    background: var(--warm-bg, #FBF9F4);
  }
  .atb-is-seg-dur-wrap {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 2px 6px;
    background: #FFFFFF;
  }
  .atb-is-seg-dur-input {
    width: 36px;
    border: none;
    background: transparent;
    font-size: 12px;
    color: var(--text);
    text-align: right;
    font-family: inherit;
    font-variant-numeric: tabular-nums;
  }
  .atb-is-seg-dur-input:focus {
    outline: none;
  }
  .atb-is-seg-dur-unit {
    font-size: 11px;
    color: var(--text-3);
  }
  .atb-is-seg-del {
    width: 22px;
    height: 22px;
    border: 1px solid var(--line);
    background: #FFFFFF;
    color: var(--text-3);
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
  }
  .atb-is-seg-del:hover {
    color: var(--err-soft, #A03328);
    border-color: var(--err-soft, #A03328);
  }
  .atb-is-seg-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    padding: 0 6px;
  }
  .atb-is-seg-meta-item {
    font-size: 11.5px;
    color: var(--text-2);
    line-height: 1.5;
  }
  .atb-is-seg-meta-key {
    color: var(--text-3);
    margin-right: 4px;
  }
  .atb-is-seg-warn {
    color: var(--err-soft, #A03328);
    font-size: 11px;
  }
  .atb-is-seg-foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 4px 0;
    border-top: 1px solid var(--line);
    margin-top: 8px;
  }
  .atb-is-seg-foot-stat {
    font-size: 11.5px;
    color: var(--text-3);
  }

  /* N 张故事板卡列表 — 按段数自适应（Cam 2026-05-16 反馈：不要每张独占一行） */
  .atb-is-sb-list {
    display: grid;
    gap: 16px;
  }
  .atb-is-sb-list[data-count="1"] { grid-template-columns: minmax(0, 720px); justify-content: center; }
  .atb-is-sb-list[data-count="2"] { grid-template-columns: 1fr 1fr; }
  .atb-is-sb-list[data-count="3"] { grid-template-columns: 1fr 1fr 1fr; }
  .atb-is-sb-list[data-count="4"] { grid-template-columns: 1fr 1fr; }
  .atb-is-sb-card {
    background: #FFFFFF;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .atb-is-sb-head {
    display: flex;
    gap: 8px;
    align-items: center;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--line);
  }
  .atb-is-sb-head-num {
    font-size: 10.5px;
    color: var(--text-3);
    background: var(--warm-bg, #FBF9F4);
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 1px 6px;
    font-variant-numeric: tabular-nums;
  }
  .atb-is-sb-head-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    flex: 1;
  }
  .atb-is-sb-head-meta {
    font-size: 11px;
    color: var(--text-3);
    font-variant-numeric: tabular-nums;
  }
  .atb-is-sb-pending {
    aspect-ratio: 16 / 9;
    background: var(--warm-bg, #FBF9F4);
    border: 1px dashed var(--line);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .atb-is-sb-pending-text {
    font-size: 12px;
    color: var(--text-mute);
  }
  .atb-is-sb-busy {
    aspect-ratio: 16 / 9;
    background: var(--warm-bg, #FBF9F4);
    border: 1px dashed var(--line);
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
  }
  .atb-is-sb-busy .spinner {
    width: 20px;
    height: 20px;
  }
  .atb-is-sb-busy-text {
    font-size: 12px;
    color: var(--text-3);
    text-align: center;
  }
  .atb-is-sb-busy-text > div {
    margin-bottom: 3px;
  }
  .atb-is-sb-img-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--warm-bg, #FBF9F4);
    border: 1px solid var(--line);
    border-radius: 6px;
    overflow: hidden;
    cursor: zoom-in;
  }
  .atb-is-sb-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
  }
  .atb-is-sb-ver-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 2px 7px;
    font-size: 10.5px;
    color: var(--text-2);
    font-weight: 500;
    font-variant-numeric: tabular-nums;
  }
  .atb-is-sb-actions {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
  }
  .atb-is-sb-failed {
    aspect-ratio: 16 / 9;
    background: rgba(196, 121, 110, 0.04);
    border: 1px dashed var(--err-soft, #A03328);
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px;
  }

  /* 反馈区（默认折叠） */
  .atb-is-fb-collapsed {
    padding: 6px 0 0;
    border-top: 1px solid var(--line);
  }
  .atb-is-fb-toggle {
    background: transparent;
    border: 1px dashed var(--line);
    color: var(--text-3);
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 11.5px;
    cursor: pointer;
    font-family: inherit;
    width: 100%;
    text-align: center;
    transition: border-color 160ms, color 160ms;
  }
  .atb-is-fb-toggle:hover {
    color: var(--text);
    border-color: var(--text-3);
    background: var(--warm-bg, #FBF9F4);
  }
  .atb-is-fb-open {
    padding-top: 10px;
    border-top: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    gap: 10px;
  }
  .atb-is-fb-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .atb-is-fb-head-title {
    font-size: 12px;
    font-weight: 500;
    color: var(--text);
  }
  .atb-is-fb-toggle-close {
    background: transparent;
    border: 1px solid var(--line);
    color: var(--text-3);
    width: 22px;
    height: 22px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
  }
  .atb-is-fb-toggle-close:hover {
    color: var(--text);
    border-color: var(--text-3);
  }
  .atb-is-fb-textarea {
    width: 100%;
    min-height: 64px;
    background: var(--warm-bg, #FBF9F4);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 8px 10px;
    font-size: 12px;
    color: var(--text);
    line-height: 1.55;
    font-family: inherit;
    resize: vertical;
    box-sizing: border-box;
  }
  .atb-is-fb-textarea:focus {
    outline: none;
    border-color: var(--text-3);
    background: #FFFFFF;
  }
  .atb-is-fb-extras {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
  .atb-is-fb-extras-label {
    font-size: 11px;
    color: var(--text-3);
  }
  .atb-is-fb-extras-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  .atb-is-fb-extra-thumb {
    position: relative;
    width: 64px;
    height: 64px;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--line);
  }
  .atb-is-fb-extra-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: zoom-in;
    display: block;
  }
  .atb-is-fb-extra-del {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 18px;
    height: 18px;
    border: none;
    background: rgba(0, 0, 0, 0.55);
    color: #FFFFFF;
    border-radius: 50%;
    cursor: pointer;
    font-size: 12px;
    line-height: 1;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: inherit;
  }
  .atb-is-fb-extra-add {
    width: 64px;
    height: 64px;
    border: 1px dashed var(--line);
    border-radius: 4px;
    background: var(--warm-bg, #FBF9F4);
    color: var(--text-3);
    cursor: pointer;
    font-size: 11px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: border-color 160ms, color 160ms;
  }
  .atb-is-fb-extra-add:hover {
    color: var(--text);
    border-color: var(--text-3);
  }
  .atb-is-fb-actions {
    display: flex;
    gap: 8px;
    align-items: center;
  }

  /* 历史 modal */
  .atb-is-hist-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
  }
  .atb-is-hist-modal {
    background: #FFFFFF;
    border: 1px solid var(--line);
    border-radius: 10px;
    max-width: 880px;
    width: 100%;
    max-height: 88vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.10);
    display: flex;
    flex-direction: column;
  }
  .atb-is-hist-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--line);
  }
  .atb-is-hist-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
  }
  .atb-is-hist-close {
    background: transparent;
    border: 1px solid var(--line);
    color: var(--text-3);
    width: 26px;
    height: 26px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    padding: 0;
    font-family: inherit;
  }
  .atb-is-hist-grid {
    padding: 16px 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 12px;
  }
  .atb-is-hist-card {
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
    background: #FFFFFF;
    display: flex;
    flex-direction: column;
    position: relative;
  }
  .atb-is-hist-card.active {
    border-color: var(--text);
    border-width: 1.5px;
  }
  .atb-is-hist-card-img {
    aspect-ratio: 16 / 9;
    background: var(--warm-bg, #FBF9F4);
    cursor: zoom-in;
    overflow: hidden;
  }
  .atb-is-hist-card-img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
  }
  .atb-is-hist-card-meta {
    padding: 8px 12px;
    border-top: 1px solid var(--line);
  }
  .atb-is-hist-card-ver {
    font-size: 12px;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 4px;
    font-variant-numeric: tabular-nums;
  }
  .atb-is-hist-card-fb {
    font-size: 11px;
    color: var(--text-3);
    line-height: 1.5;
  }
  .atb-is-hist-card-current {
    position: absolute;
    top: 6px;
    right: 6px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 1px 6px;
    font-size: 10.5px;
    color: var(--text-2);
  }
  .atb-is-hist-card > .btn {
    margin: 0 12px 12px;
  }

  /* v42 turnaround cards —— auto-fill 150px，panel 内一行能塞 3-4 张小卡 */
  .atb-is-panel-body > .atb-is-tr-card { display: none; }
  .atb-is-tr-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
    align-items: stretch;
  }
  @media (max-width: 480px) {
    .atb-is-tr-grid { grid-template-columns: 1fr; }
  }
  .atb-is-tr-card {
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #FFFFFF;
    display: flex; flex-direction: column;
    gap: 8px;
    height: 100%;
  }
  .atb-is-tr-head {
    font-size: 12.5px; font-weight: 600;
    color: var(--text);
    letter-spacing: -0.005em;
    min-height: 16px;
  }
  /* v41 大上传区 — 占满 card 宽度的 aspect 16:9 dashed box */
  .atb-is-tr-uploadzone {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 16 / 9;
    width: 100%;
    background: var(--warm-bg, #FBF9F4);
    border: 1.5px dashed var(--line);
    border-radius: 8px;
    cursor: pointer;
    overflow: hidden;
    transition: border-color 160ms, background 160ms;
  }
  .atb-is-tr-uploadzone:hover {
    border-color: var(--accent-deep, #C77F2E);
    background: #F8F2E7;
  }
  .atb-is-tr-uploadzone.has-image {
    border-style: solid;
    background: #FFF;
  }
  .atb-is-tr-uploadzone-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
  }
  .atb-is-tr-uploadzone-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    color: var(--text-mute);
    text-align: center;
    padding: 8px;
  }
  .atb-is-tr-uploadzone-icon {
    color: var(--text-3);
    margin-bottom: 2px;
    width: 22px;
    height: 22px;
  }
  .atb-is-tr-uploadzone-label {
    font-size: 11.5px;
    font-weight: 500;
    color: var(--text-2);
  }
  .atb-is-tr-uploadzone-hint {
    font-size: 10px;
    color: var(--text-3);
    line-height: 1.35;
    display: none; /* 缩小卡片后 hint 占空间，鼠标 hover title 已足够 */
  }
  .atb-is-tr-uploadzone-overlay {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 4px 10px;
    background: rgba(0,0,0,0.55);
    color: #FFF;
    font-size: 11.5px;
    border-radius: 4px;
    opacity: 0;
    transition: opacity 160ms;
    pointer-events: none;
  }
  .atb-is-tr-uploadzone.has-image:hover .atb-is-tr-uploadzone-overlay {
    opacity: 1;
  }
  /* 主 CTA 按钮 — 用于"出 9 区设定图 / 出 5 区场景图"等大动作 */
  .atb-is-tr-cta {
    width: 100%;
    padding: 6px 10px;
    font-size: 11.5px;
    font-weight: 500;
  }
  .atb-is-tr-cta-hint {
    margin-top: 3px;
    font-size: 9.5px;
    color: var(--text-3);
    text-align: center;
    line-height: 1.35;
  }
  /* 双 CTA 并排（无 ref 时：[上传参考图] + [AI 自己生成]） */
  .atb-is-tr-cta-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
  }
  .atb-is-tr-cta-half {
    padding: 6px 6px;
    font-size: 11px;
    font-weight: 500;
    text-align: center;
    line-height: 1.3;
    cursor: pointer;
    width: 100%;
  }
  /* 取消按钮（generating 卡住时清状态） */
  .atb-is-tr-cta-cancel {
    padding: 4px 12px;
    font-size: 10.5px;
    color: var(--text-3);
    background: transparent;
    border: 1px solid var(--line);
  }
  .atb-is-tr-cta-cancel:hover {
    color: var(--err, #c44);
    border-color: var(--err, #c44);
  }
  /* generating 接管 uploadzone 位置：同样 aspect 16:9 + dashed 框 + spinner 居中 */
  .atb-is-tr-busy-zone {
    aspect-ratio: 16 / 9;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--warm-bg, #FBF9F4);
    border: 1.5px dashed var(--line);
    border-radius: 8px;
  }
  .atb-is-tr-busy-zone .spinner {
    width: 22px;
    height: 22px;
  }
  .atb-is-tr-busy-text {
    font-size: 11px;
    color: var(--text-3);
  }
  /* 生成结果图：跟 uploadzone 同 16:9 aspect 保持视觉一致（之前 min-height 220 在小卡里硬拉高） */
  .atb-is-tr-card .atb-is-tr-cardimg-wrap {
    width: 100%;
    aspect-ratio: 16 / 9;
    min-height: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .atb-is-tr-card .atb-is-tr-busy {
    width: 100%;
    aspect-ratio: 16 / 9;
    min-height: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .atb-is-tr-card .atb-is-tr-actions {
    margin-top: auto;
  }
  /* v27 turnaround 生成结果图 — contain 保留完整图 + 棋盘纹理底 */
  .atb-is-tr-cardimg-wrap {
    position: relative;
    border: 1px solid var(--line);
    border-radius: 10px;
    overflow: hidden;
    background:
      linear-gradient(45deg, #F0EDE5 25%, transparent 25%),
      linear-gradient(-45deg, #F0EDE5 25%, transparent 25%),
      linear-gradient(45deg, transparent 75%, #F0EDE5 75%),
      linear-gradient(-45deg, transparent 75%, #F0EDE5 75%);
    background-size: 14px 14px;
    background-position: 0 0, 0 7px, 7px -7px, -7px 0px;
    background-color: #FAF7F0;
    cursor: zoom-in;
    transition: transform 200ms cubic-bezier(0.16, 1, 0.3, 1);
  }
  .atb-is-tr-cardimg-wrap:hover { transform: scale(1.005); }
  .atb-is-tr-cardimg-wrap::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 70%, rgba(0,0,0,0.04) 100%);
    pointer-events: none;
  }
  .atb-is-tr-formlabel {
    position: absolute;
    top: 8px; left: 8px;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text);
    font-size: 10.5px;
    font-weight: 600;
    padding: 3px 9px;
    border-radius: 6px;
    letter-spacing: 0.04em;
    z-index: 2;
    border: 1px solid var(--line);
  }
  .atb-is-tr-img {
    width: 100%;
    height: 220px;
    object-fit: contain;
    display: block;
    position: relative;
    z-index: 1;
  }
  .atb-is-tr-actions {
    display: flex; gap: 6px;
    flex-wrap: wrap; align-items: center;
    margin-top: 2px;
  }
  .atb-is-tr-busy {
    display: flex; gap: 8px; align-items: center;
    font-size: 12px; color: var(--text-3);
    padding: 32px 0;
    justify-content: center;
    background: var(--warm-bg, #FBF9F4);
    border: 1px dashed var(--line);
    border-radius: 6px;
  }

  /* v26 grid panel — 九宫格分镜 2 列 + 图片限高 240px */
  .atb-is-grid-batch-actions {
    display: flex; gap: 10px; align-items: center;
    flex-wrap: wrap;
    padding: 0 0 14px 0;
    border-bottom: 1px solid var(--line-soft, #EFEAE3);
    margin-bottom: 14px;
  }
  .atb-is-grid-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    align-items: stretch;
  }
  @media (max-width: 880px) {
    .atb-is-grid-grid { grid-template-columns: 1fr; }
  }
  .atb-is-grid-card {
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 10px;
    margin: 0;
    background: #FFFFFF;
    display: flex; flex-direction: column;
    gap: 12px;
    height: 100%;
  }
  .atb-is-grid-head {
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-height: 40px;
  }
  .atb-is-grid-head .helper {
    font-size: 12px;
    font-weight: 400;
    color: var(--text-3);
    line-height: 1.5;
  }
  .atb-is-grid-card .atb-is-grid-actions {
    margin-top: auto;
  }
  .atb-is-grid-card .atb-is-tech-inline {
    margin-top: 4px;
  }
  .atb-is-grid-img {
    width: 100%;
    height: 260px;
    object-fit: contain;
    border: 1px solid var(--line);
    border-radius: 10px;
    display: block;
    cursor: zoom-in;
    background:
      linear-gradient(45deg, #F0EDE5 25%, transparent 25%),
      linear-gradient(-45deg, #F0EDE5 25%, transparent 25%),
      linear-gradient(45deg, transparent 75%, #F0EDE5 75%),
      linear-gradient(-45deg, transparent 75%, #F0EDE5 75%);
    background-size: 14px 14px;
    background-position: 0 0, 0 7px, 7px -7px, -7px 0px;
    background-color: #FAF7F0;
    transition: transform 200ms cubic-bezier(0.16, 1, 0.3, 1), box-shadow 200ms;
  }
  .atb-is-grid-img:hover {
    transform: scale(1.005);
    box-shadow: 0 4px 16px rgba(126,168,141,0.10);
  }
  .atb-is-grid-actions {
    display: flex; gap: 6px;
    flex-wrap: wrap; align-items: center;
  }
  .atb-is-grid-busy {
    display: flex; gap: 8px; align-items: center;
    font-size: 12px; color: var(--text-3);
    padding: 32px 0;
    justify-content: center;
    background: var(--warm-bg, #FBF9F4);
    border: 1px dashed var(--line);
    border-radius: 6px;
  }
  /* 全局图片防撑满：任何 .atb-is-panel-body 内未限高的 img 兜底 */
  .atb-is-panel-body img:not(.atb-is-elem-thumb):not(.atb-is-tr-userref-thumb):not(.atb-is-tr-img):not(.atb-is-grid-img) {
    max-width: 100%;
    max-height: 320px;
    object-fit: contain;
  }

  /* tech detail (折叠 JSON / prompt) */
  .atb-is-tech {
    margin-top: 14px;
    border-top: 1px dashed var(--line-soft, #EFEAE3);
    padding-top: 8px;
  }
  .atb-is-tech.atb-is-tech-inline {
    margin-top: 8px;
    border-top: none;
    padding-top: 0;
  }
  .atb-is-tech > summary {
    cursor: pointer;
    font-size: 11.5px;
    color: var(--text-3);
    padding: 4px 0;
    list-style: none;
  }
  .atb-is-tech > summary::-webkit-details-marker { display: none; }
  .atb-is-tech > summary:hover { color: var(--accent); }
  .atb-is-tech-pre {
    background: var(--code-bg, #F4EFE6);
    padding: 10px 12px;
    border-radius: 5px;
    font-family: 'JetBrains Mono', 'SF Mono', Menlo, monospace;
    font-size: 11px;
    line-height: 1.55;
    color: #4A4A48;
    margin: 6px 0 0 0;
    max-height: 280px;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
  }

  /* ===== Modal (用于 editGridPrompt / 改 video prompt 重生) ===== */
  .atb-is-modal-mask {
    position: fixed; inset: 0;
    background: rgba(20, 18, 14, 0.45);
    z-index: 999;
    display: flex; align-items: center; justify-content: center;
    padding: 24px;
  }
  .atb-is-modal {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 22px 24px 18px;
    width: 100%;
    max-width: 640px;
    max-height: 88vh;
    box-shadow: 0 12px 32px rgba(20, 18, 14, 0.18);
    display: flex; flex-direction: column;
  }
  .atb-is-modal h3 {
    font-size: 15px; font-weight: 600;
    margin: 0 0 12px 0;
    color: var(--text-1, #1F1D19);
  }
  .atb-is-modal textarea {
    flex: 1;
    width: 100%;
    min-height: 200px;
    border: 1px solid var(--line);
    border-radius: 5px;
    padding: 10px 12px;
    font-family: 'JetBrains Mono', 'SF Mono', Menlo, monospace;
    font-size: 12.5px;
    line-height: 1.55;
    resize: vertical;
    box-sizing: border-box;
  }
  .atb-is-modal textarea:focus {
    outline: none; border-color: var(--accent);
  }
  .atb-is-modal .atb-is-modal-actions {
    display: flex; gap: 8px; justify-content: flex-end;
    margin-top: 14px;
  }

  /* ===== Step 3 视频卡 / Step 4 拼接卡 ===== */
  .vs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-top: 8px;
  }
  @media (max-width: 720px) { .vs-grid { grid-template-columns: 1fr; } }
  .vs-card {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 12px 14px;
    background: #fff;
    display: flex; flex-direction: column; gap: 8px;
  }
  .vs-card.failed { border-color: var(--err, #C26D4F); }
  .vs-card .vs-card-head {
    display: flex; justify-content: space-between; align-items: center;
    font-size: 13px; font-weight: 600;
  }
  .vs-card .vs-card-status {
    font-size: 11.5px; font-weight: 400;
    color: var(--text-3);
  }
  .vs-card video {
    width: 100%;
    border: 1px solid var(--line-soft);
    border-radius: 4px;
    background: #000;
  }
  .vs-card-empty {
    padding: 28px 12px;
    text-align: center;
    color: var(--text-3);
    font-size: 12px;
    background: var(--bg-soft);
    border-radius: 4px;
  }
  .vs-card-actions {
    display: flex; flex-wrap: wrap; gap: 6px;
    margin-top: 4px;
  }
  .vs-pre {
    font-size: 11px; color: var(--text-3);
    line-height: 1.5;
    max-height: 60px; overflow: hidden;
    border-left: 2px solid var(--line);
    padding-left: 8px;
  }
  .vs-banner {
    padding: 12px 14px;
    background: var(--accent-soft);
    border-radius: 5px;
    font-size: 13px;
    color: var(--accent-deep);
    margin-bottom: 14px;
  }
  .vs-banner b { color: var(--accent-deep); }
  .vs-thumbs {
    display: flex; gap: 8px; flex-wrap: wrap;
    margin-top: 6px;
  }
  .vs-thumb {
    width: 100%;
    max-width: 180px;
    border: 1px solid var(--line-soft);
    border-radius: 4px;
    background: #000;
  }

  /* =====================================================================
     ATB Design System v14 (Sprint 1)
     Claude.ai 风格统一层 — 纯白 / 细字 400-500 / 0.5px hair / 极淡阴影
     老类（.card / .btn / .atb-ss-* / .atb-is-* / .sv-*）过渡期保留，
     新组件用 .atb-* 前缀，Sprint 3-5 模块迁移时再 search-replace markup。
     ===================================================================== */

  :root {
    /* ----- 暖白底（UTEN 标准 #f5f5f0，比纯白略带温度）----- */
    --atb-wg0:   #FFFFFF;
    --atb-wg50:  #f5f5f0;   /* 主底色 — 暖米灰 */
    --atb-wg100: #ececea;   /* 次级容器 */
    --atb-wg200: #e5e5e5;   /* 1px 实边 */
    --atb-wg300: #B0ACA5;   /* hair border + t5 文字 */
    --atb-wg400: #89847E;   /* t4 提示文字 */
    --atb-wg500: #65625D;   /* t3 次要文字 */
    --atb-wg700: #3D3B37;   /* t2 正文 */
    --atb-wg900: #1D1B18;   /* t1 主标题 */

    /* ----- Glassmorphism（玻璃面板）----- */
    --atb-glass:       rgba(255,255,255,0.72);
    --atb-glass-hover: rgba(255,255,255,0.85);
    --atb-glass-border: rgba(0,0,0,0.06);
    --atb-glass-inset: 0 0 0 0.5px rgba(255,255,255,0.4) inset;

    /* ----- UTEN Brand 体系（v25 升级）-----
       --atb-brand 保留深炭，给 hero-pill active / 选中态 / 默认 CTA 用。
       --atb-red 是 UTEN brand 红，仅用于：a) 链接 b) 主 CTA c) Hero 4px 竖条 d) 紧急
       --atb-gold 仅用于深色 Hero 上的关键词 accent。
       ----- */
    --atb-brand:        #1D1B18;     /* 深炭，hero-pill active fill */
    --atb-brand-hover:  #000000;
    --atb-brand-soft:   rgba(29,27,24,0.06);

    --atb-red:          #b87d75;     /* 玫瑰豆沙 — 跟主 brand 一致（原 #C4342D） */
    --atb-red-hover:    #a06a63;
    --atb-red-soft:     rgba(184,125,117,0.10);
    --atb-red-bg:       rgba(184,125,117,0.05);

    --atb-gold:         #C89B3C;     /* hero accent */

    /* ----- UTEN 7 色调色板（语义化，每色 3 档：主/深/10% bg）----- */
    --atb-pink:    #C9849A;    --atb-pink-d:    #A86B80;   --atb-pink-bg:    rgba(201,132,154,0.10);
    --atb-mauve:   #9B8BB5;    --atb-mauve-d:   #7A6A93;   --atb-mauve-bg:   rgba(155,139,181,0.10);
    --atb-sage:    #7EA88D;    --atb-sage-d:    #4A8A6E;   --atb-sage-bg:    rgba(126,168,141,0.10);
    --atb-amber:   #C9A86E;    --atb-amber-d:   #8A6C2E;   --atb-amber-bg:   rgba(201,168,110,0.10);
    --atb-slate:   #8895AD;    --atb-slate-d:   #4B5468;   --atb-slate-bg:   rgba(136,149,173,0.12);
    --atb-coral:   #C4796E;    --atb-coral-d:   #8A4E45;   --atb-coral-bg:   rgba(196,121,110,0.10);

    /* ----- 状态色 alias（保留旧名字给老代码兼容）----- */
    --atb-success:      var(--atb-sage);
    --atb-success-soft: var(--atb-sage-bg);
    --atb-warning:      var(--atb-amber);
    --atb-warning-soft: var(--atb-amber-bg);
    --atb-danger:       var(--atb-coral);
    --atb-danger-soft:  var(--atb-coral-bg);
    --atb-info:         var(--atb-slate);
    --atb-info-soft:    var(--atb-slate-bg);

    /* ----- 字号 scale（UTEN 8 级，v25 上调 display/h1/h2 字号）----- */
    --atb-fs-display: 34px;   /* Hero h1 */
    --atb-fs-h1:      26px;   /* Section title */
    --atb-fs-h2:      22px;   /* Workbench Hero / 大模块标题 */
    --atb-fs-h3:      17px;   /* Card title */
    --atb-fs-h4:      15px;   /* 子模块标题 */
    --atb-fs-body:    14px;
    --atb-fs-small:   12.5px;
    --atb-fs-caption: 12px;   /* meta / chip / button */
    --atb-fs-micro:   11px;   /* tiny: footer / hint */

    /* ----- 间距 8pt scale ----- */
    --atb-sp-1: 4px;
    --atb-sp-2: 8px;
    --atb-sp-3: 12px;
    --atb-sp-4: 16px;
    --atb-sp-5: 24px;
    --atb-sp-6: 32px;
    --atb-sp-7: 48px;
    --atb-sp-8: 64px;

    /* ----- 圆角 v18（对齐 controversy-report：12px 大卡 / 6px chip）----- */
    --atb-radius-sm:   6px;
    --atb-radius-md:   12px;
    --atb-radius-lg:   16px;
    --atb-radius-pill: 9999px;

    /* ----- 阴影（玻璃风格：内白边 inset + 极淡外阴影）----- */
    --atb-shadow-1: var(--atb-glass-inset), 0 1px 4px rgba(0,0,0,0.02);
    --atb-shadow-2: var(--atb-glass-inset), 0 2px 8px rgba(0,0,0,0.025);
    --atb-shadow-3: 0 0 0 0.5px rgba(255,255,255,0.4) inset, 0 4px 16px rgba(0,0,0,0.04);

    /* ----- 边框 ----- */
    --atb-border-hair: 1px solid var(--atb-glass-border);
    --atb-border-line: 1px solid var(--atb-wg300);
    --atb-border-dash: 1px dashed var(--atb-wg200);

    /* ----- 过渡 ----- */
    --atb-ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
    --atb-ease-inout: cubic-bezier(0.4, 0, 0.2, 1);
    --atb-trans-fast: 120ms var(--atb-ease-out);
    --atb-trans-slow: 240ms var(--atb-ease-inout);

    /* ----- 5 vertical 色（对齐品牌晨报 pink/amber/slate/coral/sage 色板）----- */
    --vert-cp-bar:    #C9849A;  --vert-cp-bg:    rgba(201,132,154,0.10);  --vert-cp-fg:    #A86B80;
    --vert-pet-bar:   #C9A86E;  --vert-pet-bg:   rgba(201,168,110,0.10);  --vert-pet-fg:   #8A6C2E;
    --vert-epic-bar:  #8895AD;  --vert-epic-bg:  rgba(136,149,173,0.12);  --vert-epic-fg:  #4B5468;
    --vert-wuxia-bar: #65625D;  --vert-wuxia-bg: rgba(101,98,93,0.10);    --vert-wuxia-fg: #2D2C29;
    --vert-meme-bar:  #7EA88D;  --vert-meme-bg:  rgba(126,168,141,0.10);  --vert-meme-fg:  #426E54;
  }

  /* ===== atb-card（v25：暖白底 + 极淡阴影） ===== */
  .atb-card {
    background: #FFFFFF;
    border: 1px solid var(--atb-glass-border);
    border-radius: var(--atb-radius-md);
    padding: var(--atb-sp-5);
    box-shadow: 0 1px 3px rgba(0,0,0,0.025);
    transition: box-shadow var(--atb-trans-fast), border-color var(--atb-trans-fast), background var(--atb-trans-fast);
  }
  .atb-card:hover {
    background: var(--atb-glass-hover);
    box-shadow: var(--atb-shadow-2);
  }
  .atb-card--flat  { box-shadow: var(--atb-glass-inset); }
  .atb-card--flat:hover { box-shadow: var(--atb-glass-inset); }
  .atb-card--ghost { background: rgba(0,0,0,0.025); border-color: transparent; box-shadow: none; backdrop-filter: none; -webkit-backdrop-filter: none; }
  .atb-card--ghost:hover { background: rgba(0,0,0,0.035); box-shadow: none; }
  .atb-card--inset { padding: var(--atb-sp-4); }
  .atb-card--lg    { padding: var(--atb-sp-6); }

  /* ===== atb-btn · v30 radius 8 + step 配色 ===== */
  .atb-btn-primary {
    display: inline-flex; align-items: center; justify-content: center; gap: var(--atb-sp-2);
    background: var(--step-color, var(--atb-sage));
    color: #FFFFFF;
    border: 1px solid var(--step-color, var(--atb-sage));
    border-radius: 8px;
    padding: 0 16px;
    height: 32px;
    font-size: 13px;
    font-weight: 500;
    line-height: 1;
    transition: all 160ms var(--atb-ease-out);
    cursor: pointer;
    font-family: inherit;
    white-space: nowrap;
  }
  .atb-btn-primary:hover { background: var(--step-color-d, var(--atb-sage-d)); border-color: var(--step-color-d, var(--atb-sage-d)); }
  .atb-btn-primary:disabled,
  .atb-btn-primary[disabled] { opacity: 0.4; cursor: not-allowed; pointer-events: none; }
  .atb-btn-primary--lg { padding: 0 22px; height: 38px; font-size: 14px; }

  .atb-btn-dark {
    display: inline-flex; align-items: center; justify-content: center; gap: var(--atb-sp-2);
    background: var(--step-color-bg, var(--atb-sage-bg));
    color: var(--step-color-d, var(--atb-sage-d));
    border: 1px solid var(--step-color, var(--atb-sage));
    border-radius: 8px;
    padding: 0 16px;
    height: 32px;
    font-size: 13px;
    font-weight: 500;
    line-height: 1;
    transition: all 160ms var(--atb-ease-out);
    cursor: pointer;
    font-family: inherit;
    white-space: nowrap;
  }
  .atb-btn-dark:hover { background: var(--step-color, var(--atb-sage)); color: #FFFFFF; }

  .atb-btn-ghost {
    display: inline-flex; align-items: center; justify-content: center; gap: var(--atb-sp-2);
    background: #FFFFFF;
    color: var(--atb-wg700);
    border: 1px solid var(--atb-glass-border);
    border-radius: 8px;
    padding: 0 16px;
    height: 32px;
    font-size: 13px;
    font-weight: 500;
    line-height: 1;
    transition: all 160ms var(--atb-ease-out);
    cursor: pointer;
    font-family: inherit;
    white-space: nowrap;
  }
  .atb-btn-ghost:hover { background: var(--warm-bg, #FBF9F4); border-color: var(--step-color, var(--atb-sage)); color: var(--step-color-d, var(--atb-sage-d)); }
  .atb-btn-ghost:disabled,
  .atb-btn-ghost[disabled] { opacity: 0.4; cursor: not-allowed; pointer-events: none; }

  .atb-btn-text {
    display: inline-flex; align-items: center; gap: var(--atb-sp-1);
    background: transparent;
    border: none;
    color: var(--atb-wg700);
    font-size: 13px;
    font-weight: 500;
    padding: var(--atb-sp-1) var(--atb-sp-2);
    transition: color var(--atb-trans-fast);
    cursor: pointer;
    font-family: inherit;
  }
  .atb-btn-text:hover { color: var(--atb-sage-d); }

  /* ===== atb-tag · v28 静态徽章（非交互） ===== */
  .atb-tag {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 0 8px;
    height: 20px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 500;
    background: var(--atb-wg100);
    color: var(--atb-wg700);
    border: 1px solid var(--atb-glass-border);
    line-height: 1;
  }
  .atb-tag--brand   { background: var(--atb-red-soft);     color: var(--atb-red);       border-color: transparent; font-weight: 500; }
  .atb-tag--success { background: var(--atb-success-soft); color: var(--atb-sage-d);    border-color: transparent; font-weight: 500; }
  .atb-tag--warning { background: var(--atb-warning-soft); color: var(--atb-amber-d);   border-color: transparent; font-weight: 500; }
  .atb-tag--danger  { background: var(--atb-danger-soft);  color: var(--atb-coral-d);   border-color: transparent; font-weight: 500; }
  .atb-tag--info    { background: var(--atb-info-soft);    color: var(--atb-slate-d);   border-color: transparent; font-weight: 500; }
  .atb-tag--dark    { background: var(--atb-wg900);        color: #FFFFFF;              border-color: transparent; font-weight: 500; }

  /* ===== atb-input / textarea / select ===== */
  .atb-input,
  .atb-textarea,
  .atb-select {
    width: 100%;
    border: var(--atb-border-hair);
    border-radius: var(--atb-radius-md);
    padding: var(--atb-sp-2) var(--atb-sp-3);
    background: var(--atb-wg0);
    color: var(--atb-wg900);
    font-size: var(--atb-fs-body);
    line-height: 1.55;
    transition: border-color var(--atb-trans-fast);
    font-family: inherit;
  }
  .atb-input:focus,
  .atb-textarea:focus,
  .atb-select:focus {
    outline: none;
    border: 1px solid var(--atb-sage);
    box-shadow: 0 0 0 3px rgba(126,168,141,0.15);
  }
  .atb-input::placeholder,
  .atb-textarea::placeholder { color: var(--atb-wg500); }

  /* ===== atb-chip · v30 radius 6 + step 配色 ===== */
  .atb-chip {
    display: inline-flex; align-items: center; gap: 5px;
    border: 1px solid var(--atb-glass-border);
    background: #FFFFFF;
    color: var(--atb-wg700);
    padding: 0 12px;
    height: 28px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 120ms var(--atb-ease-out);
    line-height: 1;
    white-space: nowrap;
  }
  .atb-chip:hover { border-color: var(--step-color, var(--atb-sage)); color: var(--step-color-d, var(--atb-sage-d)); }
  .atb-chip.is-active {
    background: var(--step-color, var(--atb-sage));
    color: #FFFFFF;
    border-color: var(--step-color, var(--atb-sage));
  }
  .atb-chip-count {
    color: var(--atb-wg500);
    font-size: 11px;
    margin-left: 2px;
    font-variant-numeric: tabular-nums;
  }
  .atb-chip.is-active .atb-chip-count { color: rgba(255,255,255,0.7); }

  /* ===== atb-tab (underline tab, Claude.ai style) ===== */
  .atb-tab {
    border: none;
    background: transparent;
    padding: var(--atb-sp-3) var(--atb-sp-4);
    font-size: var(--atb-fs-body);
    font-weight: 400;
    color: var(--atb-wg500);
    cursor: pointer;
    border-bottom: 1px solid transparent;
    margin-bottom: -1px;
    transition: color var(--atb-trans-fast), border-color var(--atb-trans-fast);
    font-family: inherit;
    line-height: 1.4;
  }
  .atb-tab:hover { color: var(--atb-wg900); }
  .atb-tab.is-active {
    color: var(--atb-wg900);
    border-bottom-color: var(--atb-wg900);
    font-weight: 500;
  }

  /* ===== atb 字号 helper（实用类，按需用）===== */
  .atb-display { font-size: var(--atb-fs-display); line-height: 1.25; font-weight: 400; letter-spacing: -0.01em; color: var(--atb-wg900); }
  .atb-h1      { font-size: var(--atb-fs-h1);      line-height: 1.3;  font-weight: 500; color: var(--atb-wg900); }
  .atb-h2      { font-size: var(--atb-fs-h2);      line-height: 1.4;  font-weight: 500; color: var(--atb-wg900); }
  .atb-h3      { font-size: var(--atb-fs-h3);      line-height: 1.5;  font-weight: 500; color: var(--atb-wg900); }
  .atb-body    { font-size: var(--atb-fs-body);    line-height: 1.6;  font-weight: 400; color: var(--atb-wg900); }
  .atb-small   { font-size: var(--atb-fs-small);   line-height: 1.55; font-weight: 400; color: var(--atb-wg700); }
  .atb-caption { font-size: var(--atb-fs-caption); line-height: 1.5;  font-weight: 400; color: var(--atb-wg500); }
  .atb-micro   { font-size: var(--atb-fs-micro);   line-height: 1.4;  font-weight: 500; color: var(--atb-wg500); letter-spacing: 0.06em; text-transform: uppercase; }

  /* ===== atb-divider ===== */
  .atb-divider { height: 1px; background: var(--atb-wg300); border: none; margin: var(--atb-sp-5) 0; }
  .atb-divider--dashed { background: none; border-top: var(--atb-border-dash); }

  /* ===== atb-stack (vertical flex helper) ===== */
  .atb-stack    { display: flex; flex-direction: column; gap: var(--atb-sp-3); }
  .atb-stack-1  { gap: var(--atb-sp-1); }
  .atb-stack-2  { gap: var(--atb-sp-2); }
  .atb-stack-4  { gap: var(--atb-sp-4); }
  .atb-stack-5  { gap: var(--atb-sp-5); }

  /* ===== atb-row (horizontal flex helper) ===== */
  .atb-row    { display: flex; align-items: center; gap: var(--atb-sp-3); }
  .atb-row-2  { display: flex; align-items: center; gap: var(--atb-sp-2); }
  .atb-row-4  { display: flex; align-items: center; gap: var(--atb-sp-4); }
  .atb-row-between { display: flex; align-items: center; justify-content: space-between; gap: var(--atb-sp-3); }

  /* ===== 共享动画（原 ATB Home Hero 段随「首页删除」清理，仅保留跨组件复用的） ===== */
  /* atb-pulse：脚本生成中骨架条复用（见 ~L1969）；另有同名 @media 定义在下方 */
  @keyframes atb-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(126,168,141,0.4); }
    50%      { box-shadow: 0 0 0 6px rgba(126,168,141,0); }
  }

  /* 全局渐入动效（IntersectionObserver 控制 in-view class） */
  .atb-fade-in {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 480ms var(--atb-ease-out), transform 480ms var(--atb-ease-out);
  }
  .atb-fade-in.in-view {
    opacity: 1;
    transform: translateY(0);
  }

  /* =====================================================================
     ATB Topbar Stepper + Substatus (S2b)
     ===================================================================== */
  /* v27 stepper · 居中胶囊 · 马卡龙柔色 · active=sage 柔绿 fill */
  .atb-stepper {
    display: none;
    align-items: center;
    gap: 6px;
    flex: 0 1 auto;
    margin: 0;
    justify-self: center;
  }
  .atb-stepper.is-visible { display: inline-flex; }

  .atb-stepper-item {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 8px 14px;
    height: auto;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    font-family: inherit;
    color: var(--atb-wg500);
    transition: all 200ms var(--atb-ease-out);
    line-height: 1.2;
    white-space: nowrap;
  }
  .atb-stepper-item:hover {
    background: var(--warm-bg);
    color: var(--atb-wg900);
  }
  .atb-stepper-item-num {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.04em;
    font-variant-numeric: tabular-nums;
    opacity: 0.55;
  }
  .atb-stepper-item-label {
    font-size: 13px;
    font-weight: 500;
  }
  .atb-stepper-dot {
    display: none;
  }
  .atb-stepper-line {
    width: 18px;
    height: 1px;
    background: var(--atb-wg300);
    display: inline-block;
    opacity: 0.4;
  }
  .atb-stepper-item--idle { color: var(--atb-wg500); }
  /* active = 当前 step，按 step 配色 */
  .atb-stepper-item--active {
    background: var(--step-color-bg, var(--atb-amber-bg));
    border-color: var(--step-color, var(--atb-amber));
    color: var(--step-color-d, var(--atb-amber-d));
  }
  .atb-stepper-item--active .atb-stepper-item-num { opacity: 1; color: var(--step-color-d, var(--atb-amber-d)); }
  .atb-stepper-item--active .atb-stepper-item-label { font-weight: 600; }
  /* done = 已完成（sage 柔绿 ✓） */
  .atb-stepper-item--done   {
    color: var(--atb-sage-d);
    background: transparent;
  }
  .atb-stepper-item--done .atb-stepper-item-num {
    color: var(--atb-sage);
    opacity: 1;
  }
  .atb-stepper-item--done .atb-stepper-item-num::after {
    content: '✓';
    margin-left: 4px;
    font-weight: 700;
  }

  /* v27 substatus · 极简一行（不再大色块 amber 条） */
  .atb-substatus {
    grid-column: 1 / -1;
    display: none;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    background: transparent;
    border-bottom: 1px solid var(--line);
    min-height: 36px;
    gap: 12px;
  }
  .atb-substatus.is-visible { display: flex; }
  .atb-substatus-left {
    display: flex;
    align-items: baseline;
    gap: 8px;
    min-width: 0;
    flex: 1;
    flex-wrap: wrap;
  }
  .atb-substatus-title {
    font-size: 11px;
    color: var(--atb-wg500);
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
  }
  .atb-substatus-desc {
    font-size: 12px;
    color: var(--atb-wg700);
    line-height: 1.5;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .atb-substatus-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
  }
  .atb-substatus-desc-warn { color: var(--atb-amber-d); }

  /* =====================================================================
     ATB Creative Card · Step 1 选卡 (S3)
     ===================================================================== */
  /* v18: vertical 分布堆叠条（5 立场色阶可视化分类占比）*/
  .atb-vert-distribution { margin-bottom: var(--atb-sp-4); }
  .atb-vert-bar {
    display: flex;
    height: 8px;
    border-radius: var(--atb-radius-pill);
    overflow: hidden;
    background: var(--atb-wg200);
  }
  .atb-vert-bar-seg {
    transition: opacity 120ms var(--atb-ease-out);
    cursor: default;
  }
  .atb-vert-bar-seg:hover { opacity: 0.85; }
  .atb-vert-bar-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--atb-sp-4);
    margin-top: var(--atb-sp-2);
    font-size: var(--atb-fs-caption);
    color: var(--atb-wg500);
  }
  .atb-vert-bar-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
  }
  .atb-vert-bar-legend-dot {
    width: 8px; height: 8px; border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
  }
  /* v30 创意卡 · 一行 5 张 + 渐变 banner + 标题居中 + 白底信息条 */
  .atb-cc-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 16px;
  }
  @media (max-width: 1280px) { .atb-cc-grid { grid-template-columns: repeat(4, 1fr); } }
  @media (max-width: 1024px) { .atb-cc-grid { grid-template-columns: repeat(3, 1fr); } }
  @media (max-width: 720px)  { .atb-cc-grid { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 480px)  { .atb-cc-grid { grid-template-columns: 1fr; } }

  .atb-cc {
    position: relative;
    background: #FFFFFF;
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 0;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    display: flex;
    flex-direction: column;
    transition: all 220ms cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
    width: 100%;
    box-shadow: 0 1px 3px rgba(0,0,0,0.03);
  }
  .atb-cc:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(0,0,0,0.08);
    border-color: var(--cc-tag-bg, var(--text-mute));
  }
  .atb-cc.is-selected {
    border: 2px solid var(--cc-tag-bg, var(--ok));
    box-shadow: 0 8px 24px rgba(0,0,0,0.10);
  }
  .atb-cc.is-selected .atb-cc-banner { padding: 19px 18px 21px; }

  /* v31 banner 渐变 — 雾感高 key 低饱和 pastel（参考琳界点 Top 8 风） */
  .atb-cc-banner {
    position: relative;
    padding: 22px 20px 24px;
    min-height: 138px;
    flex-shrink: 0;                     /* 防列 flex 里被压缩致色块不满高（某些浏览器） */
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    /* 实色打底 + 渐变叠加：修「同一张卡上半有色下半露白」跨浏览器 bug —— 某些浏览器/显示器把这层浅渐变
       只渲染了一部分、剩下露出卡片白底(#FFF)。实色兜底(用渐变末端色 --cc-to)保证渐变没铺满的地方也是同色不留白；
       Mac/Chrome 上不透明渐变照常盖住实色、外观不变。 */
    background-color: var(--cc-to, #E5E1D7);
    background-image: linear-gradient(160deg, var(--cc-from, #F0EDE5) 0%, var(--cc-to, #E5E1D7) 100%);
  }
  .atb-cc-check {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.92);
    color: var(--cc-tag-bg, var(--ok));
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    line-height: 1;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  }
  .atb-cc-title {
    font-size: 15px;
    line-height: 1.45;
    font-weight: 700;
    color: var(--cc-title, #1D1B18);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    letter-spacing: -0.005em;
    padding: 0 4px;
  }
  .atb-cc-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 11px 14px;
    background: #FFFFFF;
    border-top: 1px solid var(--line-soft);
    min-height: 38px;
  }
  .atb-cc-author {
    font-size: 11.5px;
    color: var(--text-2);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
    line-height: 1.4;
  }
  .atb-cc-date {
    font-size: 11px;
    color: var(--text-mute);
    white-space: nowrap;
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
  }
  /* #2+#4 热点源行：小缩略图 + 《公告标题》，克制不抢眼 */
  .atb-cc-src {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 7px 14px 9px;
    background: #FFFFFF;
    border-top: 1px solid var(--line-soft);
  }
  .atb-cc-src-thumb {
    position: relative;
    width: 26px;
    height: 26px;
    border-radius: 5px;
    background-size: cover;
    background-position: center;
    background-color: var(--warm-bg, #F5F1EA);
    flex-shrink: 0;
    border: 1px solid var(--line-soft);
  }
  .atb-cc-src-play {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 9px;
    color: #FFFFFF;
    background: rgba(20,18,16,0.32);
    border-radius: 5px;
  }
  .atb-cc-src-clip {
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 12px;
    color: var(--text-mute);
    background: var(--warm-bg, #F5F1EA);
    border-radius: 5px;
  }
  .atb-cc-src-text {
    font-size: 10.5px;
    color: var(--text-mute);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.4;
    min-width: 0;
  }
  .atb-cc-src.is-original .atb-cc-src-text { color: var(--text-3); }

  /* Batch3: 公告素材选择器（Step 2 角色/场景设垫图） */
  .atb-is-nm-mask {
    position: fixed;
    inset: 0;
    z-index: 9000;
    background: rgba(20,18,16,0.42);
    backdrop-filter: blur(3px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px;
  }
  .atb-is-nm-modal {
    background: #FFFFFF;
    border-radius: 14px;
    width: min(760px, 92vw);
    max-height: 84vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 24px 60px rgba(0,0,0,0.22);
  }
  .atb-is-nm-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--line);
  }
  .atb-is-nm-title { font-size: 14px; font-weight: 600; color: var(--text); }
  .atb-is-nm-sub { font-size: 11.5px; color: var(--text-mute); margin-top: 3px; }
  .atb-is-nm-close {
    border: 0;
    background: transparent;
    font-size: 16px;
    color: var(--text-mute);
    cursor: pointer;
    line-height: 1;
    padding: 2px 4px;
  }
  .atb-is-nm-close:hover { color: var(--text); }
  .atb-is-nm-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 10px;
    padding: 16px 20px 20px;
    overflow-y: auto;
  }
  .atb-is-nm-thumb {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--line);
    cursor: pointer;
    transition: all 160ms cubic-bezier(0.16, 1, 0.3, 1);
    background: var(--warm-bg, #F5F1EA);
  }
  .atb-is-nm-thumb:hover {
    transform: translateY(-2px);
    border-color: var(--cc-tag-bg, var(--text-mute));
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
  }

  /* v31 5 vertical 雾感色板（L 88-94 / S 12-20 高级 pastel，参考琳界点 Top 8） */
  .atb-cc[data-vertical="CP情缘"]   { --cc-from: #FBE9EB; --cc-to: #F4D7D7; --cc-tag-bg: #C9849A; }   /* 雾粉 */
  .atb-cc[data-vertical="萌宠IP"]   { --cc-from: #F8ECD7; --cc-to: #F0DDBE; --cc-tag-bg: #C9A86E; }   /* 奶油米 */
  .atb-cc[data-vertical="古风大片"] { --cc-from: #E5EBF1; --cc-to: #D5DCE5; --cc-tag-bg: #8895AD; }   /* 雾蓝灰 */
  .atb-cc[data-vertical="武侠打斗"] { --cc-from: #ECE6DA; --cc-to: #DBD4C5; --cc-tag-bg: #65625D; }   /* 雾米灰 */
  .atb-cc[data-vertical="二创"]     { --cc-from: #E5ECDC; --cc-to: #D5DDC4; --cc-tag-bg: #7EA88D; }   /* 抹茶 */

  /* Filter bar */
  .atb-cc-filter {
    display: flex;
    align-items: center;
    gap: var(--atb-sp-3);
    margin-bottom: var(--atb-sp-4);
    flex-wrap: wrap;
  }
  .atb-cc-filter-chips {
    display: flex;
    gap: var(--atb-sp-2);
    flex-wrap: wrap;
    flex: 1;
    min-width: 0;
  }
  .atb-cc-filter-search {
    width: 240px;
    max-width: 100%;
  }

  /* Empty / loading / error */
  .atb-cc-empty {
    padding: var(--atb-sp-7) var(--atb-sp-4);
    text-align: center;
    color: var(--atb-wg500);
    font-size: var(--atb-fs-body);
    border: var(--atb-border-dash);
    border-radius: var(--atb-radius-md);
    background: var(--atb-wg50);
  }
  .atb-cc-empty-actions {
    margin-top: var(--atb-sp-4);
    display: inline-flex;
    gap: var(--atb-sp-3);
    flex-wrap: wrap;
    justify-content: center;
  }
  .atb-cc-skeleton {
    background: var(--atb-wg100);
    border-radius: var(--atb-radius-md);
    height: 170px;
    animation: atb-pulse 1.5s ease-in-out infinite;
  }
  @keyframes atb-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
  }

  @media (max-width: 720px) {
    .atb-cc-filter-search { width: 100%; }
    .atb-cc-grid { grid-template-columns: 1fr; }
  }

  /* =====================================================================
     ATB Step 2 三分区 (S4)
     ===================================================================== */
  .atb-is-layout {
    display: flex;
    flex-direction: column;
    gap: var(--atb-sp-5);
  }

  /* 顶部上下文 chip */
  .atb-is-ctx {
    background: var(--atb-wg50);
    border: var(--atb-border-hair);
    border-radius: var(--atb-radius-md);
    padding: var(--atb-sp-3) var(--atb-sp-4);
    display: flex;
    align-items: center;
    gap: var(--atb-sp-4);
    flex-wrap: wrap;
  }
  .atb-is-ctx-left {
    display: flex;
    align-items: center;
    gap: var(--atb-sp-3);
    flex: 1;
    min-width: 0;
  }
  .atb-is-ctx-tag {
    font-size: var(--atb-fs-caption);
    color: var(--atb-wg500);
    border-right: 1px solid var(--atb-wg300);
    padding-right: var(--atb-sp-3);
    flex-shrink: 0;
  }
  .atb-is-ctx-main {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
  }
  .atb-is-ctx-title {
    font-size: var(--atb-fs-h3);
    font-weight: 500;
    color: var(--atb-wg900);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .atb-is-ctx-meta {
    font-size: var(--atb-fs-caption);
    color: var(--atb-wg500);
  }
  .atb-is-ctx-right {
    display: flex;
    gap: var(--atb-sp-2);
    flex-shrink: 0;
  }

  /* 元素摘要 chip row */
  .atb-is-summary {
    display: flex;
    align-items: center;
    gap: var(--atb-sp-3);
    flex-wrap: wrap;
    padding: var(--atb-sp-2) 0;
  }
  .atb-is-summary-tag {
    font-size: var(--atb-fs-caption);
    color: var(--atb-wg700);
    background: var(--atb-wg100);
    padding: 2px var(--atb-sp-2);
    border-radius: var(--atb-radius-sm);
  }
  .atb-is-summary-action {
    margin-left: auto;
    display: flex;
    gap: var(--atb-sp-2);
  }

  /* 双栏主工作区 */
  .atb-is-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--atb-sp-4);
  }
  @media (max-width: 1100px) {
    .atb-is-main { grid-template-columns: 1fr; }
  }
  .atb-is-col {
    min-width: 0;  /* 让 grid 子项内部内容能 shrink 不撑大 */
  }

  /* 底部桥梁 */
  .atb-is-bridge {
    background: var(--atb-brand-soft);
    border: 1px solid rgba(61,59,55, 0.15);
    border-radius: var(--atb-radius-md);
    padding: var(--atb-sp-5);
    display: flex;
    flex-direction: column;
    gap: var(--atb-sp-4);
  }
  .atb-is-bridge-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--atb-sp-3);
    flex-wrap: wrap;
  }
  .atb-is-bridge-title {
    font-size: var(--atb-fs-h2);
    font-weight: 500;
    color: var(--atb-wg900);
  }
  .atb-is-bridge-meta {
    font-size: var(--atb-fs-caption);
    color: var(--atb-wg700);
  }
  .atb-is-bridge-cta {
    background: var(--atb-brand);
    color: var(--atb-wg0);
    border: 1px solid var(--atb-brand);
    border-radius: var(--atb-radius-md);
    padding: var(--atb-sp-3) var(--atb-sp-6);
    font-size: var(--atb-fs-body);
    font-weight: 500;
    cursor: pointer;
    transition: background var(--atb-trans-fast);
    font-family: inherit;
    align-self: flex-start;
  }
  .atb-is-bridge-cta:hover { background: var(--atb-brand-hover); }
  .atb-is-bridge-cta:disabled,
  .atb-is-bridge-cta[disabled] {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
  }
  .atb-is-bridge-progress {
    height: 2px;
    background: var(--atb-wg200);
    border-radius: 2px;
    overflow: hidden;
  }
  .atb-is-bridge-progress-bar {
    height: 100%;
    background: var(--atb-brand);
    transition: width var(--atb-trans-fast);
  }

  /* 抽屉 (S4b) */
  .atb-drawer-mask {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.15);
    backdrop-filter: blur(2px);
    z-index: 9000;
    display: none;
  }
  .atb-drawer-mask.is-open { display: block; }
  .atb-drawer {
    position: fixed;
    top: 0; right: 0; bottom: 0;
    width: 360px;
    max-width: 90vw;
    background: var(--atb-wg0);
    border-left: 1px solid var(--atb-wg300);
    box-shadow: var(--atb-shadow-3);
    z-index: 9001;
    transform: translateX(100%);
    transition: transform var(--atb-trans-slow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    visibility: hidden;
    pointer-events: none;
  }
  .atb-drawer.is-open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
  }
  .atb-drawer-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--atb-sp-4) var(--atb-sp-5);
    border-bottom: var(--atb-border-hair);
    flex-shrink: 0;
  }
  .atb-drawer-title {
    font-size: var(--atb-fs-h2);
    font-weight: 500;
    color: var(--atb-wg900);
  }
  .atb-drawer-close {
    width: 28px; height: 28px;
    border-radius: var(--atb-radius-sm);
    border: var(--atb-border-hair);
    background: var(--atb-wg0);
    cursor: pointer;
    color: var(--atb-wg700);
    font-size: 14px;
    line-height: 1;
    transition: border-color var(--atb-trans-fast), color var(--atb-trans-fast);
    font-family: inherit;
  }
  .atb-drawer-close:hover { border-color: var(--atb-wg500); color: var(--atb-wg900); }
  .atb-drawer-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--atb-sp-5);
    display: flex;
    flex-direction: column;
    gap: var(--atb-sp-4);
  }
  .atb-drawer-section-title {
    font-size: var(--atb-fs-micro);
    font-weight: 500;
    color: var(--atb-wg500);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: var(--atb-sp-2);
  }

  /* =====================================================================
     ATB Step 3 完成态总览 (S5a)
     ===================================================================== */
  .atb-co {
    background: var(--atb-wg0);
    border: var(--atb-border-hair);
    border-radius: var(--atb-radius-md);
    padding: var(--atb-sp-6);
    margin-bottom: var(--atb-sp-5);
    box-shadow: var(--atb-shadow-1);
    display: flex;
    flex-direction: column;
    gap: var(--atb-sp-5);
  }
  .atb-co-eyebrow {
    font-size: var(--atb-fs-micro);
    color: var(--atb-success);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-weight: 500;
  }
  .atb-co-title {
    font-size: var(--atb-fs-display);
    line-height: 1.25;
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--atb-wg900);
    margin: 0;
  }
  .atb-co-thumbs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--atb-sp-3);
  }
  .atb-co-thumb {
    border: var(--atb-border-hair);
    border-radius: var(--atb-radius-md);
    background: var(--atb-wg50);
    padding: var(--atb-sp-3);
    display: flex;
    flex-direction: column;
    gap: var(--atb-sp-2);
  }
  .atb-co-thumb video {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #000;
    border-radius: var(--atb-radius-sm);
    object-fit: cover;
  }
  .atb-co-thumb-label {
    font-size: var(--atb-fs-caption);
    color: var(--atb-wg700);
    font-weight: 500;
  }
  .atb-co-thumb-actions {
    display: flex;
    gap: var(--atb-sp-2);
  }
  .atb-co-pack {
    background: var(--atb-wg50);
    border: var(--atb-border-hair);
    border-radius: var(--atb-radius-md);
    padding: var(--atb-sp-4);
  }
  .atb-co-pack-title {
    font-size: var(--atb-fs-h3);
    font-weight: 500;
    color: var(--atb-wg900);
    margin-bottom: var(--atb-sp-3);
  }
  .atb-co-pack-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--atb-sp-2) 0;
    border-top: var(--atb-border-dash);
    font-size: var(--atb-fs-small);
    color: var(--atb-wg700);
  }
  .atb-co-pack-row:first-of-type { border-top: none; }
  .atb-co-cta-row {
    display: flex;
    gap: var(--atb-sp-3);
    flex-wrap: wrap;
  }

  /* ===========================================================================
   * v81 灵感卡 modal · inline 编辑态 + AI 对话区 + chip 增删
   * =========================================================================== */
  .atb-ss-editable {
    cursor: text;
    transition: background 120ms, box-shadow 120ms;
    border-radius: 6px;
    outline: none;
  }
  .atb-ss-editable:hover {
    background: rgba(255, 255, 255, 0.4);
  }
  .atb-ss-editable:focus {
    background: #FFFFFF;
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.35);
    outline: none;
  }
  /* 空字段显示 placeholder */
  .atb-ss-editable:empty:before {
    content: attr(data-placeholder);
    color: var(--text-mute);
    font-style: italic;
    pointer-events: none;
  }
  .atb-ss-modal-hint {
    font-size: 10.5px;
    color: var(--text-mute);
    font-weight: 400;
    letter-spacing: 0;
    text-transform: none;
    margin-left: 8px;
    font-style: italic;
  }
  /* chip 编辑容器 */
  .atb-ss-modal-chips-edit {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
  }
  /* 可删除 chip 共用样式（在原 .atb-ss-modal-char / .atb-ss-modal-tag 基础上加 hover 红 + ×） */
  .atb-ss-chip-del {
    cursor: pointer;
    transition: all 120ms;
    border: 1px solid var(--line);
  }
  .atb-ss-chip-del:hover {
    background: #FBE9EB !important;
    border-color: #C9849A !important;
    color: #8E3E50 !important;
  }
  .atb-ss-chip-x {
    margin-left: 5px;
    font-size: 12px;
    color: var(--text-mute);
    line-height: 1;
  }
  .atb-ss-chip-del:hover .atb-ss-chip-x { color: #8E3E50; }
  /* + 加号添加 */
  .atb-ss-chip-add {
    display: inline-flex;
    align-items: center;
    height: 26px;
    padding: 0 12px;
    border-radius: 6px;
    background: transparent;
    color: var(--text-mute);
    border: 1px dashed var(--line);
    font-size: 12px;
    cursor: pointer;
    transition: all 120ms;
  }
  .atb-ss-chip-add:hover {
    border-color: var(--text-2);
    color: var(--text-2);
    background: var(--warm-bg);
  }
  /* AI 对话区（v82-A: 暖黄渐变 → 浅暖底 + 标准灰线 + 黑底按钮，对齐 NSH 视觉） */
  .atb-ss-draft-ai {
    background: var(--warm-bg, #FBF9F4);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 14px 16px;
  }
  .atb-ss-draft-ai .atb-ss-modal-section-label {
    color: var(--text-2);
    margin-bottom: 4px;
  }
  .atb-ss-draft-ai .atb-ss-modal-hint {
    color: var(--text-mute);
    font-style: italic;
  }
  .atb-ss-draft-textarea {
    width: 100%;
    box-sizing: border-box;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: #FFFFFF;
    padding: 10px 12px;
    font-size: 13px;
    line-height: 1.55;
    color: var(--text);
    font-family: inherit;
    resize: vertical;
    min-height: 50px;
    margin-bottom: 10px;
    transition: border-color 120ms, box-shadow 120ms;
  }
  .atb-ss-draft-textarea:focus {
    outline: none;
    border-color: var(--text-2);
    box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.06);
  }
  .atb-ss-draft-ai .btn {
    background: var(--text);
    color: #FFFFFF;
    border-color: var(--text);
  }
  .atb-ss-draft-ai .btn:hover { background: #000; }
  .atb-ss-draft-ai .btn:disabled { opacity: 0.6; cursor: not-allowed; }
  .atb-ss-draft-reset-btn {
    margin-left: 8px;
    background: transparent !important;
    color: var(--text-mute) !important;
    border: 1px solid transparent !important;
    text-decoration: underline;
  }
  .atb-ss-draft-reset-btn:hover {
    background: rgba(0,0,0,0.04) !important;
    color: var(--text-2) !important;
    text-decoration: none;
  }

  /* ===========================================================================
   * v81 脚本页 beats inline 编辑（td 双击 → contenteditable）
   * =========================================================================== */
  .atb-ss-beat-edit {
    cursor: text;
    transition: background 100ms, box-shadow 100ms;
    border-radius: 3px;
    padding: 2px 4px;
  }
  .atb-ss-beat-edit:hover {
    background: rgba(99, 102, 241, 0.06);
  }
  .atb-ss-beat-edit:focus {
    background: #FFFFFF;
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.35);
    outline: none;
  }
  /* 脚本底部按钮左右两组布局 */
  .atb-ss-script-actions-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
  }
  .atb-ss-actions-left, .atb-ss-actions-right {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
  }

  /* ===========================================================================
   * v82-B / v83-C 资产卡缩略图状态：生成中 spinner（双圆环）/ 错误态
   * =========================================================================== */
  .atb-is-asset-thumb-loading {
    width: 56px;
    height: 56px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    background: linear-gradient(135deg, var(--warm-bg, #FBF9F4) 0%, #F4EFE5 100%);
    color: var(--text-2);
    border: 1px solid var(--line);
    border-radius: 6px;
    flex-shrink: 0;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.4);
    position: relative;
    overflow: hidden;
  }
  /* 顶部细脉冲条 */
  .atb-is-asset-thumb-loading::before {
    content: '';
    position: absolute;
    top: 0; left: -30%;
    width: 30%; height: 2px;
    background: linear-gradient(90deg, transparent, var(--text), transparent);
    animation: atb-is-thumb-shimmer 1.8s ease-in-out infinite;
  }
  @keyframes atb-is-thumb-shimmer {
    to { left: 100%; }
  }
  .atb-is-asset-thumb-loading .spinner {
    width: 20px;
    height: 20px;
    border: 2.2px solid var(--line);
    border-top-color: var(--text);
    border-radius: 50%;
    animation: atb-is-spin 850ms linear infinite;
  }
  @keyframes atb-is-spin {
    to { transform: rotate(360deg); }
  }
  .atb-is-asset-thumb-msg {
    font-size: 9.5px;
    color: var(--text-2);
    font-weight: 500;
    letter-spacing: 0.02em;
    line-height: 1;
  }
  .atb-is-asset-thumb-eta {
    font-size: 8.5px;
    color: var(--text-mute);
    line-height: 1;
  }
  .atb-is-asset-thumb-error {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #FBE9EB;
    color: #8E3E50;
    cursor: pointer;
    font-size: 11.5px;
    text-align: center;
    padding: 8px;
    border: 1px solid #E5C7CB;
    transition: background 120ms;
  }
  .atb-is-asset-thumb-error:hover { background: #F5D5D9; }
  /* AI 生成的 img 缩略图加 hover 提示 */
  .atb-is-asset-thumb {
    cursor: pointer;
    transition: opacity 120ms, transform 120ms;
  }
  .atb-is-asset-thumb:hover {
    opacity: 0.88;
  }

  /* ===========================================================================
   * v83-D 视频卡 ref 缩略 + prompt textarea
   * =========================================================================== */
  .sv-card-refs {
    margin-bottom: 12px;
    padding: 10px 12px;
    background: var(--warm-bg, #FBF9F4);
    border-radius: 8px;
  }
  .sv-card-refs-label {
    font-size: 11.5px;
    color: var(--text-2);
    margin-bottom: 8px;
    font-weight: 500;
  }
  .sv-card-refs-grid {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    align-items: center;
  }
  .sv-card-ref-item {
    position: relative;
    width: 64px; height: 64px;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--line);
    flex-shrink: 0;
  }
  .sv-card-ref-item img {
    width: 100%; height: 100%;
    object-fit: cover;
    cursor: zoom-in;
    display: block;
  }
  .sv-card-ref-remove {
    position: absolute;
    top: 2px; right: 2px;
    width: 18px; height: 18px;
    border-radius: 50%;
    background: rgba(0,0,0,0.55);
    color: #fff;
    border: 0;
    font-size: 12px;
    line-height: 1;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    padding: 0;
  }
  .sv-card-ref-remove:hover { background: rgba(0,0,0,0.85); }
  .sv-card-ref-add {
    width: 64px; height: 64px;
    border-radius: 6px;
    border: 1px dashed var(--line);
    background: transparent;
    color: var(--text-mute);
    font-size: 24px;
    cursor: pointer;
    flex-shrink: 0;
    transition: all 120ms;
  }
  .sv-card-ref-add:hover {
    border-color: var(--text-2);
    color: var(--text-2);
    background: rgba(0,0,0,0.02);
  }
  /* v94: 段2+ 的"上一段末帧"占位卡（生成时自动抽取，故只读占位） */
  .sv-card-ref-frame {
    width: 64px; height: 64px;
    border-radius: 6px;
    border: 1px dashed var(--line);
    background: var(--warm-bg, #FBF9F4);
    display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    text-align: center; gap: 1px;
    font-size: 9.5px; line-height: 1.2; color: var(--text-2);
    flex-shrink: 0; padding: 4px;
  }
  .sv-card-ref-frame span { color: var(--text-mute); font-size: 8.5px; }
  .sv-card-ref-arrow { color: var(--text-mute); font-size: 16px; flex-shrink: 0; }
  .sv-card-prompt {
    margin-bottom: 12px;
  }
  .sv-card-prompt-label {
    font-size: 11.5px;
    color: var(--text-2);
    margin-bottom: 4px;
    font-weight: 500;
  }
  .sv-card-prompt-text {
    width: 100%;
    box-sizing: border-box;
    border-radius: 6px;
    border: 1px solid var(--line);
    background: #FFFFFF;
    padding: 10px 12px;
    font-size: 12.5px;
    line-height: 1.6;
    color: var(--text);
    font-family: inherit;
    resize: vertical;
    min-height: 120px;
  }
  .sv-card-prompt-text:focus {
    outline: none;
    border-color: var(--text-2);
    box-shadow: 0 0 0 2px rgba(0,0,0,0.06);
  }

  /* ===========================================================================
   * v82-C lightbox 重新生成 按钮 + modal
   * =========================================================================== */
  .aat-lb-actions {
    position: absolute;
    top: 14px;
    left: 14px;
    display: flex;
    gap: 8px;
    z-index: 2;
  }
  .aat-lb-action-btn {
    background: rgba(255, 255, 255, 0.95);
    color: #1D1B18;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 6px;
    padding: 6px 12px;
    font-size: 12.5px;
    cursor: pointer;
    transition: background 120ms;
    font-family: inherit;
  }
  .aat-lb-action-btn:hover { background: #FFFFFF; }
  /* 重新生成 modal */
  .atb-is-regen-modal-mask {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
  }
  .atb-is-regen-modal {
    background: #FFFFFF;
    border-radius: 12px;
    max-width: 520px;
    width: 100%;
    padding: 22px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.20);
  }
  .atb-is-regen-modal h3 {
    margin: 0 0 6px;
    font-size: 15px;
    color: var(--text);
  }
  .atb-is-regen-modal p {
    color: var(--text-2);
    font-size: 12.5px;
    margin: 0 0 12px;
    line-height: 1.55;
  }
  .atb-is-regen-modal textarea {
    width: 100%;
    box-sizing: border-box;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: #FFFFFF;
    padding: 10px 12px;
    font-size: 13px;
    line-height: 1.55;
    color: var(--text);
    font-family: inherit;
    resize: vertical;
    min-height: 80px;
    margin-bottom: 14px;
  }
  .atb-is-regen-modal textarea:focus {
    outline: none;
    border-color: var(--text-2);
    box-shadow: 0 0 0 2px rgba(0,0,0,0.06);
  }
  .atb-is-regen-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
  }