.research-tool-shell {
    margin-bottom: 26px;
}

.research-workspace-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 260px;
    gap: 22px;
    align-items: stretch;
    margin-bottom: 22px;
    padding: 30px;
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(236, 253, 245, 0.78));
    box-shadow: var(--shadow-md);
}

.research-workspace-head h1 {
    margin: 16px 0 0;
    max-width: 920px;
    font-size: clamp(34px, 4.5vw, 58px);
    line-height: 0.98;
    letter-spacing: -0.06em;
}

.research-workspace-head p {
    max-width: 840px;
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 16px;
}

.research-tool-identity {
    display: grid;
    align-content: center;
    gap: 10px;
    padding: 20px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.78);
    box-shadow: var(--shadow-sm);
}

.research-tool-icon {
    width: 56px;
    height: 56px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #ffffff;
    font-weight: 900;
}

.research-tool-identity strong {
    font-size: 22px;
    line-height: 1.12;
    letter-spacing: -0.035em;
}

.research-tool-identity span:last-child {
    color: var(--muted);
    font-size: 13px;
    font-weight: 800;
}

.research-tool-layout {
    display: grid;
    grid-template-columns: minmax(320px, 0.82fr) minmax(0, 1.18fr);
    gap: 22px;
    align-items: start;
}

.research-card {
    border: 1px solid var(--line);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.research-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 17px 19px;
    border-bottom: 1px solid var(--line);
    background: rgba(248, 250, 252, 0.88);
}

.research-card-head span {
    display: block;
    color: var(--muted);
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.research-card-head h2 {
    margin: 5px 0 0;
    font-size: 18px;
    line-height: 1.1;
    letter-spacing: -0.035em;
}

.research-card-head strong {
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(15, 118, 110, 0.10);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 900;
    white-space: nowrap;
}

.research-field-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    padding: 19px;
}

.research-field {
    display: grid;
    gap: 7px;
}

.research-field-wide {
    grid-column: 1 / -1;
}

.research-field label {
    color: #334155;
    font-size: 13px;
    font-weight: 900;
}

.research-field input,
.research-field select,
.research-field textarea {
    width: 100%;
    min-height: 44px;
    border: 1px solid rgba(148, 163, 184, 0.48);
    border-radius: 14px;
    padding: 11px 12px;
    background: #ffffff;
    color: var(--text);
    font: inherit;
    font-size: 14px;
    outline: none;
}

.research-field textarea {
    min-height: 130px;
    resize: vertical;
}

.research-field input:focus,
.research-field select:focus,
.research-field textarea:focus {
    border-color: rgba(15, 118, 110, 0.58);
    box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.10);
}

.research-field small {
    color: var(--muted);
    font-size: 12px;
    line-height: 1.45;
}

.research-choice-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
}

.research-choice {
    display: grid;
    grid-template-columns: 18px minmax(0, 1fr);
    gap: 9px;
    align-items: start;
    min-height: 44px;
    padding: 10px;
    border: 1px solid rgba(148, 163, 184, 0.34);
    border-radius: 14px;
    background: #ffffff;
    color: #334155;
    font-size: 13px;
    font-weight: 750;
}

.research-choice input {
    width: 16px;
    min-height: 16px;
    margin-top: 2px;
    padding: 0;
}

.research-actions,
.research-output-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 17px 19px;
    border-top: 1px solid var(--line);
    background: rgba(248, 250, 252, 0.78);
}

.research-output {
    min-height: 560px;
}

.research-output-body {
    padding: 19px;
}

.research-empty-state {
    display: grid;
    place-items: center;
    min-height: 360px;
    gap: 8px;
    text-align: center;
    color: var(--muted);
}

.research-empty-state strong {
    color: var(--text);
    font-size: 20px;
    letter-spacing: -0.025em;
}

.research-summary-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 18px;
}

.research-summary-item {
    padding: 13px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: rgba(236, 253, 245, 0.46);
}

.research-summary-item span {
    display: block;
    color: var(--muted);
    font-size: 11px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.research-summary-item strong {
    display: block;
    margin-top: 7px;
    font-size: 26px;
    line-height: 1;
    letter-spacing: -0.04em;
}

.research-summary-item small {
    display: block;
    margin-top: 6px;
    color: var(--muted);
    font-size: 12px;
}

.research-result-block {
    padding: 18px 0;
    border-top: 1px solid var(--line);
}

.research-result-block:first-child {
    border-top: 0;
    padding-top: 0;
}

.research-result-block h3 {
    margin: 0 0 10px;
    font-size: 18px;
    line-height: 1.15;
    letter-spacing: -0.025em;
}

.research-result-block p {
    margin: 0 0 10px;
    color: #334155;
    font-size: 14px;
}

.research-result-block ul,
.research-result-block ol {
    margin: 0;
    padding-left: 20px;
    color: #334155;
    font-size: 14px;
}

.research-result-block li + li {
    margin-top: 7px;
}

.research-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: 14px;
}

.research-result-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 620px;
    background: #ffffff;
    font-size: 13px;
}

.research-result-table th,
.research-result-table td {
    padding: 10px 11px;
    border-bottom: 1px solid rgba(226, 232, 240, 0.9);
    text-align: left;
    vertical-align: top;
}

.research-result-table th {
    background: #f8fafc;
    color: #334155;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.research-result-table tr:last-child td {
    border-bottom: 0;
}

.research-code {
    overflow: auto;
    max-height: 420px;
    margin: 0;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #0f172a;
    color: #e2e8f0;
    font-family: Consolas, Monaco, 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.55;
    white-space: pre-wrap;
}

.research-flow {
    display: grid;
    gap: 9px;
}

.research-flow-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 15px;
    background: #ffffff;
}

.research-flow-item strong {
    font-size: 14px;
}

.research-flow-item span {
    color: var(--primary-dark);
    font-size: 20px;
    font-weight: 900;
}

.research-flow-item small {
    grid-column: 1 / -1;
    color: var(--muted);
}

.research-guide-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 22px;
}

.research-guide-item {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    gap: 12px;
    align-items: start;
    padding: 15px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.84);
    box-shadow: var(--shadow-sm);
}

.research-guide-item span {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: rgba(15, 118, 110, 0.10);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 900;
}

.research-guide-item p {
    margin: 0;
    color: #334155;
    font-size: 13px;
}

@media (max-width: 1100px) {
    .research-tool-layout,
    .research-workspace-head,
    .research-guide-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 680px) {
    .research-workspace-head {
        padding: 22px;
        border-radius: 24px;
    }

    .research-field-grid,
    .research-summary-grid,
    .research-choice-grid {
        grid-template-columns: 1fr;
    }

    .research-actions,
    .research-output-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .research-actions button,
    .research-actions .button-link,
    .research-output-actions button {
        width: 100%;
    }
}