.sat-tool {
    --sat-ink: #162235;
    --sat-muted: #607086;
    --sat-soft: #f5f8fb;
    --sat-soft-2: #edf5f7;
    --sat-line: #d7e2ec;
    --sat-blue: #0b6fb3;
    --sat-blue-dark: #084f86;
    --sat-teal: #0f8f85;
    --sat-green: #16815f;
    --sat-amber: #b76505;
    --sat-red: #c83f32;
    --sat-card: #ffffff;
    --sat-shadow: 0 16px 36px rgba(18, 35, 56, .10);
    width: 100%;
    color: var(--sat-ink);
}
.sat-tool * { box-sizing: border-box; }
.sat-tool button,
.sat-tool input,
.sat-tool select,
.sat-tool textarea { font: inherit; }
.sat-shell {
    display: grid;
    gap: 16px;
}
.sat-notice {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    border: 1px solid #b9d8e7;
    border-left: 4px solid var(--sat-blue);
    border-radius: 8px;
    background: #f2f8fb;
    color: #29495f;
    font-size: 13px;
    line-height: 1.65;
}
.sat-notice-icon {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--sat-blue);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    font-weight: 900;
    font-size: 13px;
    margin-top: 1px;
}
.sat-board {
    display: grid;
    gap: 14px;
}
.sat-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}
.sat-step-tab {
    min-height: 68px;
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-areas: "num title" "num sub";
    align-items: center;
    column-gap: 10px;
    border: 1px solid var(--sat-line);
    border-radius: 8px;
    background: #fff;
    color: #16324c;
    padding: 12px;
    cursor: pointer;
    text-align: left;
    box-shadow: 0 8px 20px rgba(18, 35, 56, .05);
    transition: background .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.sat-step-tab:hover {
    border-color: rgba(11, 111, 179, .46);
    transform: translateY(-1px);
}
.sat-step-tab.active {
    border-color: var(--sat-blue);
    background: linear-gradient(180deg, #ffffff, #eef7fb);
    box-shadow: 0 12px 26px rgba(11, 111, 179, .14);
}
.sat-step-tab span {
    grid-area: num;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--sat-blue-dark);
    background: #e6f1f8;
    font-weight: 900;
}
.sat-step-tab.active span {
    color: #fff;
    background: var(--sat-blue);
}
.sat-step-tab b {
    grid-area: title;
    font-size: 15px;
    line-height: 1.2;
    color: #102a43;
}
.sat-step-tab small {
    grid-area: sub;
    color: var(--sat-muted);
    font-size: 12px;
}
.sat-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.28fr) minmax(300px, .72fr);
    gap: 16px;
    align-items: start;
}
.sat-main,
.sat-preview-card {
    background: var(--sat-card);
    border: 1px solid var(--sat-line);
    border-radius: 8px;
    box-shadow: var(--sat-shadow);
}
.sat-main {
    padding: 18px;
}
.sat-panel {
    display: none;
}
.sat-panel.active {
    display: grid;
    gap: 16px;
}
.sat-panel-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid #edf1f6;
}
.sat-panel-head h3 {
    margin: 0 0 6px;
    font-size: 18px;
    line-height: 1.3;
}
.sat-panel-head p {
    margin: 0;
    color: var(--sat-muted);
    line-height: 1.65;
    font-size: 13px;
}
.sat-section {
    border: 1px solid #e2eaf2;
    background: #fff;
    border-radius: 8px;
    padding: 15px;
    display: grid;
    gap: 12px;
}
.sat-section-title {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
}
.sat-section-title b {
    font-size: 15px;
}
.sat-section-title span {
    color: var(--sat-muted);
    font-size: 12px;
    line-height: 1.5;
    text-align: right;
}
.sat-choice-grid {
    display: grid;
    gap: 10px;
}
.sat-choice-grid.two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.sat-choice {
    min-height: 82px;
    border: 1px solid var(--sat-line);
    border-radius: 8px;
    background: #fff;
    color: #1d344d;
    padding: 13px;
    text-align: left;
    cursor: pointer;
    transition: border-color .18s ease, background .18s ease, transform .18s ease;
}
.sat-choice:hover {
    border-color: rgba(11, 111, 179, .45);
    background: #f7fbfd;
}
.sat-choice.active {
    border-color: var(--sat-blue);
    background: #eef7fb;
}
.sat-choice b {
    display: block;
    font-size: 14px;
    margin-bottom: 6px;
}
.sat-choice span {
    display: block;
    color: var(--sat-muted);
    font-size: 12px;
    line-height: 1.55;
}
.sat-content-box,
.sat-type-settings {
    display: none;
}
.sat-content-box.active,
.sat-type-settings.active {
    display: grid;
}
.sat-textarea {
    width: 100%;
    min-height: 190px;
    resize: vertical;
    border: 1px solid #d6e0eb;
    border-radius: 8px;
    padding: 12px;
    outline: none;
    background: #fbfcff;
    color: var(--sat-ink);
    line-height: 1.65;
}
.sat-textarea:focus,
.sat-field input:focus,
.sat-field select:focus {
    border-color: var(--sat-blue);
    box-shadow: 0 0 0 3px rgba(11, 111, 179, .12);
}
.sat-grid {
    display: grid;
    gap: 12px;
}
.sat-grid.two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.sat-grid.four {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}
.sat-field {
    display: grid;
    gap: 6px;
}
.sat-field.wide {
    grid-column: span 2;
}
.sat-field span,
.sat-check span {
    color: #34485f;
    font-weight: 800;
    font-size: 13px;
}
.sat-field input,
.sat-field select {
    width: 100%;
    min-height: 40px;
    border: 1px solid #d6e0eb;
    border-radius: 7px;
    background: #fff;
    color: var(--sat-ink);
    padding: 9px 10px;
    outline: none;
}
.sat-field input[type="color"] {
    padding: 4px;
}
.sat-check {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
}
.sat-check.inline {
    align-self: end;
    border: 1px solid #dfe7f0;
    border-radius: 999px;
    padding: 8px 11px;
    background: #fff;
}
.sat-check input {
    accent-color: var(--sat-blue);
}
.sat-drop {
    border: 2px dashed #b8c8d8;
    border-radius: 8px;
    background: linear-gradient(180deg, #fbfdff, #f4f8fb);
    min-height: 132px;
    display: grid;
    place-items: center;
    gap: 8px;
    text-align: center;
    padding: 22px;
    cursor: pointer;
}
.sat-drop.dragging {
    border-color: var(--sat-blue);
    background: #eef7fb;
}
.sat-drop strong {
    font-size: 16px;
}
.sat-drop span {
    color: var(--sat-muted);
    font-size: 13px;
}
.sat-hidden {
    display: none !important;
}
.sat-file-list {
    display: grid;
    gap: 8px;
    max-height: 230px;
    overflow: auto;
}
.sat-file-item {
    display: grid;
    grid-template-columns: 46px minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    border: 1px solid #e5ecf3;
    border-radius: 8px;
    background: #fbfcff;
    padding: 8px 10px;
}
.sat-file-thumb {
    width: 46px;
    height: 46px;
    border-radius: 7px;
    border: 1px solid #e1e8f0;
    background: #eef3f7;
    object-fit: cover;
}
.sat-file-info {
    min-width: 0;
}
.sat-file-info b {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 13px;
}
.sat-file-info span,
.sat-file-size,
.sat-more,
.sat-preview-line {
    color: var(--sat-muted);
    font-size: 12px;
}
.sat-file-size {
    white-space: nowrap;
}
.sat-preview-line {
    line-height: 1.6;
}
.sat-preset-row,
.sat-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.sat-actions.end {
    justify-content: flex-end;
}
.sat-actions.spread {
    justify-content: space-between;
}
.sat-btn,
.sat-pill {
    border: 1px solid #cfdbe7;
    background: #fff;
    color: #24384f;
    border-radius: 7px;
    min-height: 38px;
    padding: 9px 13px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    font-weight: 800;
    transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
}
.sat-btn:hover,
.sat-pill:hover {
    border-color: var(--sat-blue);
    color: var(--sat-blue-dark);
}
.sat-btn.primary {
    color: #fff;
    background: var(--sat-blue);
    border-color: var(--sat-blue);
}
.sat-btn.primary:hover {
    color: #fff;
    background: var(--sat-blue-dark);
    transform: translateY(-1px);
}
.sat-btn.accent {
    color: #fff;
    background: var(--sat-teal);
    border-color: var(--sat-teal);
}
.sat-btn:disabled {
    opacity: .55;
    cursor: not-allowed;
    transform: none;
}
.sat-pill {
    min-height: 34px;
    border-radius: 999px;
    font-size: 13px;
    padding: 7px 12px;
}
.sat-pill.active {
    color: #fff;
    border-color: var(--sat-blue);
    background: var(--sat-blue);
}
.sat-preview-card {
    overflow: hidden;
    position: sticky;
    top: 12px;
}
.sat-preview-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-bottom: 1px solid #edf1f6;
    background: #f7fafc;
}
.sat-preview-head b {
    display: block;
    font-size: 16px;
    margin-bottom: 3px;
}
.sat-preview-head span {
    color: var(--sat-muted);
    font-size: 12px;
}
.sat-mini-stats {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
}
.sat-mini-stats span {
    border: 1px solid #dce6ef;
    border-radius: 999px;
    padding: 5px 8px;
    background: #fff;
    color: #38516b;
    font-weight: 800;
}
.sat-canvas-stage {
    min-height: 420px;
    padding: 16px;
    display: grid;
    place-items: center;
    background:
        linear-gradient(45deg, #eef3f7 25%, transparent 25%),
        linear-gradient(-45deg, #eef3f7 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #eef3f7 75%),
        linear-gradient(-45deg, transparent 75%, #eef3f7 75%);
    background-size: 22px 22px;
    background-position: 0 0, 0 11px, 11px -11px, -11px 0;
    overflow: auto;
}
.sat-canvas-stage canvas {
    display: block;
    max-width: 100%;
    max-height: 72vh;
    height: auto;
    width: auto;
    background: #0b1320;
    box-shadow: 0 10px 28px rgba(18, 35, 56, .18);
}
.sat-summary {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    background: #e6edf4;
    border-top: 1px solid #e6edf4;
}
.sat-summary div {
    background: #fbfcff;
    padding: 11px;
}
.sat-summary span {
    display: block;
    color: var(--sat-muted);
    font-size: 12px;
    margin-bottom: 4px;
}
.sat-summary b {
    font-size: 14px;
}
.sat-progress {
    display: none;
    height: 24px;
    border-radius: 999px;
    background: #e7eef5;
    overflow: hidden;
}
.sat-progress-bar {
    width: 0%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    background: linear-gradient(90deg, var(--sat-blue), var(--sat-teal));
    font-size: 12px;
    font-weight: 900;
    transition: width .18s ease;
}
.sat-status {
    min-height: 22px;
    color: var(--sat-muted);
    font-size: 13px;
    line-height: 1.6;
}
.sat-status.success { color: var(--sat-green); }
.sat-status.error { color: var(--sat-red); }
.sat-status.warn { color: var(--sat-amber); }
.sat-result-section {
    display: none;
    border: 1px solid #e2eaf2;
    background: #fff;
    border-radius: 8px;
    padding: 15px;
    gap: 12px;
}
.sat-result-section.active {
    display: grid;
}
.sat-result-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}
.sat-result-item {
    border: 1px solid #e5ecf3;
    background: #fbfcff;
    border-radius: 8px;
    padding: 10px;
    display: grid;
    gap: 8px;
}
.sat-result-item b {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 13px;
}
.sat-result-item span {
    color: var(--sat-muted);
    font-size: 12px;
}
.sat-result-item a {
    color: var(--sat-blue-dark);
    font-weight: 800;
    text-decoration: none;
}
.sat-result-item a:hover {
    text-decoration: underline;
}
@media (max-width: 1100px) {
    .sat-layout {
        grid-template-columns: 1fr;
    }
    .sat-preview-card {
        position: static;
    }
    .sat-grid.four {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}
@media (max-width: 720px) {
    .sat-tabs,
    .sat-choice-grid.two,
    .sat-grid.two,
    .sat-grid.four,
    .sat-summary,
    .sat-result-grid {
        grid-template-columns: 1fr;
    }
    .sat-panel-head,
    .sat-section-title,
    .sat-preview-head {
        display: grid;
    }
    .sat-section-title span {
        text-align: left;
    }
    .sat-main,
    .sat-section,
    .sat-canvas-stage {
        padding: 13px;
    }
    .sat-field.wide {
        grid-column: auto;
    }
    .sat-file-item {
        grid-template-columns: 42px minmax(0, 1fr);
    }
    .sat-file-size {
        grid-column: 2;
    }
}