.app-shell {
    width: min(1540px, calc(100% - 32px));
    margin: 24px auto 48px;
}
.hero {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
    padding: 28px 32px;
    border: 1px solid #dbe4f0;
    border-radius: 18px;
    background: linear-gradient(135deg, #ffffff 0%, #f7faff 58%, #eef5ff 100%);
    box-shadow: 0 14px 42px rgba(15, 23, 42, 0.07);
}
.hero h1 {
    margin: 4px 0 10px;
    font-size: clamp(28px, 4vw, 46px);
    line-height: 1.08;
    letter-spacing: -0.04em;
}
.hero p {
    max-width: 900px;
    margin: 0;
    color: #64748b;
    line-height: 1.7;
}
.eyebrow {
    color: #2563eb;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.16em;
}
.hero button {
    flex: none;
    padding: 10px 17px;
    border: 1px solid #1d4ed8;
    border-radius: 10px;
    color: #fff;
    background: #2563eb;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.24);
    cursor: pointer;
}
.hero button:disabled {
    cursor: default;
    opacity: 0.55;
}
.workspace {
    display: grid;
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 20px;
    margin-top: 20px;
}
.sidebar {
    align-self: start;
    position: sticky;
    top: 18px;
    display: grid;
    gap: 7px;
    padding: 14px;
    border: 1px solid #dbe4f0;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.05);
}
.side-title {
    padding: 7px 10px 10px;
    color: #94a3b8;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.12em;
}
.sidebar button {
    display: grid;
    gap: 2px;
    width: 100%;
    padding: 10px 11px;
    border: 1px solid transparent;
    border-radius: 10px;
    text-align: left;
    color: #334155;
    background: transparent;
    cursor: pointer;
}
.sidebar button span {
    color: #94a3b8;
    font-size: 12px;
}
.sidebar button.active {
    border-color: #bfdbfe;
    color: #1d4ed8;
    background: #eff6ff;
}
.content {
    min-width: 0;
    padding: 22px;
    border: 1px solid #dbe4f0;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.05);
}
.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 18px;
    padding-bottom: 16px;
    border-bottom: 1px solid #e2e8f0;
}
.section-head span {
    color: #64748b;
    font-size: 12px;
}
.section-head h2 {
    margin: 2px 0 0;
    font-size: 26px;
}
.protocol-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 7px;
}
.protocol-tags span {
    padding: 5px 8px;
    border: 1px solid #dbeafe;
    border-radius: 999px;
    color: #1d4ed8;
    background: #f8fbff;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.state-message {
    padding: 24px;
    border: 1px dashed #cbd5e1;
    border-radius: 12px;
    color: #64748b;
    text-align: center;
}
.state-message.error,
.inline-error {
    color: #b91c1c;
    background: #fef2f2;
}
.intro-panel,
.explain-box,
.demo-block {
    margin-bottom: 18px;
    padding: 18px;
    border: 1px solid #dbe4f0;
    border-radius: 14px;
    background: #fbfdff;
}
.intro-panel h3,
.demo-block h3,
.endpoint-panel h3,
.protocol-panel h3 {
    margin: 0 0 8px;
}
.intro-panel p,
.explain-box p {
    margin: 4px 0 0;
    color: #64748b;
    line-height: 1.65;
}
.layer-flow {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 10px;
    margin-top: 18px;
}
.layer-flow div {
    display: grid;
    align-content: start;
    min-height: 126px;
    padding: 13px;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: #fff;
}
.layer-flow div > span {
    display: grid;
    place-items: center;
    width: 26px;
    height: 26px;
    margin-bottom: 10px;
    border-radius: 8px;
    color: #fff;
    background: #2563eb;
    font-weight: 800;
}
.layer-flow small {
    margin-top: 6px;
    color: #64748b;
    line-height: 1.45;
}
.capability-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}
.capability-card {
    padding: 16px;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
}
.capability-card h3 {
    margin: 0 0 10px;
    font-size: 15px;
}
.badge-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.badge-list span {
    padding: 4px 7px;
    border-radius: 7px;
    color: #475569;
    background: #f1f5f9;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 12px;
}
.amis-panel {
    min-width: 0;
    margin-bottom: 16px;
}
.amis-runtime {
    min-width: 0;
}
.inline-error {
    padding: 12px;
    border: 1px solid #fecaca;
    border-radius: 10px;
}
.frontend-layout {
    min-width: 0;
}
.frontend-horizontal {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}
.frontend-vertical {
    display: grid;
    gap: 12px;
}
.frontend-list {
    display: grid;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
}
.frontend-list .frontend-slot {
    border-bottom: 1px solid #e2e8f0;
    border-radius: 0;
}
.frontend-list .frontend-slot:last-child {
    border-bottom: 0;
}
.frontend-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}
.frontend-slot {
    min-width: 0;
    padding: 13px;
    border: 1px solid #dbe4f0;
    border-radius: 12px;
    background: #fff;
}
.frontend-vertical .frontend-slot {
    width: 100%;
}
.slot-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 10px;
}
.slot-meta strong {
    color: #0f172a;
}
.slot-meta span {
    padding: 3px 6px;
    border-radius: 6px;
    color: #1d4ed8;
    background: #eff6ff;
    font-size: 11px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.slot-meta code {
    max-width: 100%;
    color: #64748b;
    font-size: 11px;
    overflow-wrap: anywhere;
}
.slot-demo {
    min-width: 0;
    margin: 0;
}
.slot-table-wrap {
    overflow-x: auto;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
}
.slot-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
.slot-table th,
.slot-table td {
    padding: 12px;
    border-bottom: 1px solid #e2e8f0;
    text-align: left;
    vertical-align: top;
}
.slot-table th {
    color: #475569;
    background: #f8fafc;
}
.slot-table th:first-child,
.slot-table td:first-child {
    width: 64px;
}
.slot-table th:nth-child(2),
.slot-table td:nth-child(2) {
    width: 320px;
}
.slot-table tbody tr:last-child td {
    border-bottom: 0;
}
.mode-switch {
    display: inline-flex;
    gap: 5px;
    margin-bottom: 16px;
    padding: 4px;
    border: 1px solid #dbe4f0;
    border-radius: 10px;
    background: #f8fafc;
}
.mode-switch button {
    padding: 7px 14px;
    border: 0;
    border-radius: 7px;
    color: #64748b;
    background: transparent;
    cursor: pointer;
}
.mode-switch button.active {
    color: #1d4ed8;
    background: #fff;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}
.json-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}
.json-panel {
    min-width: 0;
    border: 1px solid #dbe4f0;
    border-radius: 12px;
    background: #0f172a;
    overflow: hidden;
}
.json-panel summary {
    padding: 12px 14px;
    color: #dbeafe;
    background: #172033;
    cursor: pointer;
    font-weight: 700;
}
.json-panel pre,
.protocol-panel pre {
    max-height: 560px;
    margin: 0;
    padding: 15px;
    overflow: auto;
    color: #dbeafe;
    background: #0f172a;
    font: 12px/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}
.doc-layout {
    display: grid;
    grid-template-columns: 0.85fr 1.65fr;
    gap: 14px;
    margin-bottom: 16px;
}
.endpoint-panel,
.protocol-panel {
    min-width: 0;
    padding: 16px;
    border: 1px solid #e2e8f0;
    border-radius: 13px;
}
.endpoint-panel code {
    display: block;
    margin-top: 7px;
    padding: 7px 9px;
    border-radius: 7px;
    color: #334155;
    background: #f1f5f9;
    font-size: 12px;
    overflow-wrap: anywhere;
}
.protocol-panel select {
    width: 100%;
    margin-bottom: 10px;
    padding: 8px 10px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    background: #fff;
}
.protocol-panel pre {
    border-radius: 9px;
}
.advanced-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}
.doc-case-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 14px;
}
.doc-case-tabs button {
    padding: 8px 10px;
    border: 1px solid #dbe4f0;
    border-radius: 8px;
    color: #475569;
    background: #fff;
    cursor: pointer;
}
.doc-case-tabs button.active {
    border-color: #93c5fd;
    color: #1d4ed8;
    background: #eff6ff;
}
.doc-case {
    margin-bottom: 18px;
    padding: 16px;
    border: 1px solid #dbe4f0;
    border-radius: 13px;
    background: #fbfdff;
}
.doc-case-head span {
    color: #2563eb;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.12em;
}
.doc-case-head h3 {
    margin: 5px 0 6px;
}
.doc-case-head p {
    margin: 0 0 14px;
    color: #64748b;
    line-height: 1.6;
}
.doc-preview {
    margin-bottom: 14px;
    padding: 14px;
    border: 1px solid #dbe4f0;
    border-radius: 12px;
    background: #fff;
}
.doc-preview h4 {
    margin: 0 0 10px;
}
.doc-code-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}
.code-panel {
    min-width: 0;
    border: 1px solid #dbe4f0;
    border-radius: 12px;
    background: #0f172a;
    overflow: hidden;
}
.code-panel h4 {
    margin: 0;
    padding: 12px 14px;
    color: #dbeafe;
    background: #172033;
}
.code-panel pre {
    min-height: 160px;
    max-height: 560px;
    margin: 0;
    padding: 15px;
    overflow: auto;
    color: #dbeafe;
    font: 12px/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}
@media (max-width: 1120px) {
    .layer-flow {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
    .frontend-horizontal,
    .frontend-cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}
@media (max-width: 820px) {
    .app-shell {
        width: min(100% - 18px, 1540px);
        margin-top: 10px;
    }
    .hero,
    .section-head {
        align-items: stretch;
        flex-direction: column;
    }
    .workspace {
        grid-template-columns: 1fr;
    }
    .sidebar {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .side-title {
        grid-column: 1 / -1;
    }
    .layer-flow,
    .capability-grid,
    .frontend-horizontal,
    .frontend-cards,
    .json-grid,
    .advanced-grid,
    .doc-layout,
    .doc-code-grid {
        grid-template-columns: 1fr;
    }
    .protocol-tags {
        justify-content: flex-start;
    }
}