* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body.seo-page {
    margin: 0;
    color: #111827;
    background: #ffffff;
    font-family:
        Pretendard,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        "Noto Sans KR",
        Arial,
        sans-serif;
    line-height: 1.7;
}

.seo-page a {
    color: inherit;
}

.seo-shell {
    width: min(1120px, calc(100% - 40px));
    margin: 0 auto;
}

.seo-header {
    border-bottom: 1px solid #e5e7eb;
    background: rgba(255, 255, 255, .96);
}

.seo-header-inner {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.seo-brand {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
}

.seo-brand img {
    display: block;
    max-height: 38px;
    max-width: 170px;
}

.seo-nav {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 14px;
    font-weight: 700;
}

.seo-nav a {
    text-decoration: none;
}

.seo-nav .seo-nav-cta {
    padding: 10px 17px;
    border-radius: 999px;
    background: #111827;
    color: #ffffff;
}

.seo-hero {
    padding: 92px 0 82px;
    background:
        radial-gradient(circle at 15% 15%, rgba(37, 99, 235, .11), transparent 34%),
        radial-gradient(circle at 85% 20%, rgba(14, 165, 233, .10), transparent 30%),
        #f8fafc;
}

.seo-eyebrow {
    margin: 0 0 14px;
    color: #2563eb;
    font-size: 15px;
    font-weight: 800;
    letter-spacing: .02em;
}

.seo-hero h1 {
    max-width: 880px;
    margin: 0;
    font-size: clamp(34px, 5vw, 60px);
    line-height: 1.16;
    letter-spacing: -.04em;
}

.seo-lead {
    max-width: 790px;
    margin: 24px 0 0;
    color: #475569;
    font-size: 19px;
    line-height: 1.8;
}

.seo-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 34px;
}

.seo-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 50px;
    padding: 0 22px;
    border: 1px solid #d1d5db;
    border-radius: 14px;
    background: #ffffff;
    font-weight: 800;
    text-decoration: none;
}

.seo-button.primary {
    border-color: #2563eb;
    background: #2563eb;
    color: #ffffff;
}

.seo-section {
    padding: 82px 0;
}

.seo-section.soft {
    background: #f8fafc;
}

.seo-section-head {
    max-width: 800px;
    margin-bottom: 36px;
}

.seo-section-head h2 {
    margin: 0;
    font-size: clamp(28px, 4vw, 42px);
    line-height: 1.3;
    letter-spacing: -.035em;
}

.seo-section-head p {
    margin: 16px 0 0;
    color: #64748b;
    font-size: 17px;
}

.seo-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.seo-card {
    min-height: 210px;
    padding: 28px;
    border: 1px solid #e5e7eb;
    border-radius: 22px;
    background: #ffffff;
    box-shadow: 0 12px 35px rgba(15, 23, 42, .045);
}

.seo-card .number {
    display: inline-flex;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
    border-radius: 11px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 14px;
    font-weight: 900;
}

.seo-card h3 {
    margin: 0;
    font-size: 20px;
    line-height: 1.45;
}

.seo-card p {
    margin: 12px 0 0;
    color: #64748b;
}

.seo-flow {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
}

.seo-flow-step {
    position: relative;
    padding: 24px 18px;
    border-radius: 18px;
    background: #0f172a;
    color: #ffffff;
    text-align: center;
}

.seo-flow-step small {
    display: block;
    margin-bottom: 8px;
    color: #93c5fd;
    font-weight: 800;
}

.seo-flow-step strong {
    display: block;
    font-size: 17px;
}

.seo-audience {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.seo-audience article {
    padding: 28px;
    border-radius: 20px;
    background: #ffffff;
    border: 1px solid #e5e7eb;
}

.seo-audience h3 {
    margin: 0 0 10px;
    font-size: 20px;
}

.seo-audience p {
    margin: 0;
    color: #64748b;
}

.seo-links {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.seo-link-card {
    display: block;
    padding: 26px;
    border: 1px solid #dbeafe;
    border-radius: 20px;
    background: #eff6ff;
    text-decoration: none;
}

.seo-link-card strong {
    display: block;
    margin-bottom: 8px;
    font-size: 19px;
}

.seo-link-card span {
    color: #475569;
}

.seo-faq {
    border-top: 1px solid #e5e7eb;
}

.seo-faq article {
    padding: 26px 0;
    border-bottom: 1px solid #e5e7eb;
}

.seo-faq h3 {
    margin: 0;
    font-size: 19px;
}

.seo-faq p {
    margin: 10px 0 0;
    color: #64748b;
}

.seo-bottom-cta {
    padding: 70px 0;
    background: #0f172a;
    color: #ffffff;
}

.seo-bottom-cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.seo-bottom-cta h2 {
    margin: 0;
    font-size: clamp(26px, 4vw, 38px);
    line-height: 1.3;
}

.seo-bottom-cta p {
    margin: 12px 0 0;
    color: #cbd5e1;
}

.seo-footer {
    padding: 34px 0;
    border-top: 1px solid #e5e7eb;
    color: #64748b;
    font-size: 14px;
}

.seo-footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.seo-footer a {
    text-decoration: none;
}

.seo-discovery-section {
    padding: 64px 20px;
    background: #f8fafc;
    border-top: 1px solid #e5e7eb;
}

.seo-discovery-inner {
    width: min(1080px, 100%);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
}

.seo-discovery-copy {
    max-width: 760px;
}

.seo-discovery-kicker {
    margin: 0 0 8px;
    color: #2563eb;
    font-size: 14px;
    font-weight: 900;
}

.seo-discovery-section h2 {
    margin: 0;
    color: #111827;
    font-size: clamp(25px, 3.5vw, 36px);
    line-height: 1.35;
}

.seo-discovery-section p {
    margin: 12px 0 0;
    color: #64748b;
    line-height: 1.7;
}

.seo-discovery-link {
    flex: 0 0 auto;
    padding: 14px 20px;
    border-radius: 14px;
    background: #2563eb;
    color: #ffffff !important;
    font-weight: 800;
    text-decoration: none;
}

@media (max-width: 860px) {
    .seo-grid,
    .seo-links {
        grid-template-columns: 1fr;
    }

    .seo-flow {
        grid-template-columns: 1fr;
    }

    .seo-audience {
        grid-template-columns: 1fr;
    }

    .seo-bottom-cta-inner,
    .seo-discovery-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .seo-nav a:not(.seo-nav-cta) {
        display: none;
    }
}

@media (max-width: 560px) {
    .seo-shell {
        width: min(100% - 28px, 1120px);
    }

    .seo-hero {
        padding: 64px 0 58px;
    }

    .seo-section {
        padding: 62px 0;
    }

    .seo-card {
        min-height: 0;
    }
}

/* SEO_PHASE2B1_BOTTOM_CTA_SECONDARY_FIX_V1 */
.seo-bottom-cta .seo-button:not(.primary) {
    color: #111827;
}


/* ==================================================
   SEO_PHASE2C1_INDIVIDUALIZED_LEARNING_V1
   ================================================== */

.seo-situation-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.seo-situation-card {
    padding: 26px 22px;
    border: 1px solid #e5e7eb;
    border-radius: 20px;
    background: #ffffff;
}

.seo-situation-card span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 42px;
    height: 30px;
    margin-bottom: 16px;
    padding: 0 10px;
    border-radius: 999px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 13px;
    font-weight: 900;
}

.seo-situation-card h3 {
    margin: 0;
    font-size: 19px;
    line-height: 1.45;
}

.seo-situation-card p {
    margin: 10px 0 0;
    color: #64748b;
}

.seo-parallel-board {
    display: grid;
    grid-template-columns: 180px 1fr 1fr 1fr;
    gap: 10px;
    align-items: stretch;
}

.seo-parallel-cell {
    min-height: 82px;
    padding: 18px;
    border: 1px solid #dbe3ef;
    border-radius: 16px;
    background: #ffffff;
}

.seo-parallel-cell.label {
    display: flex;
    align-items: center;
    background: #0f172a;
    color: #ffffff;
    font-weight: 900;
}

.seo-parallel-cell strong {
    display: block;
    margin-bottom: 5px;
    color: #111827;
}

.seo-parallel-cell p {
    margin: 0;
    color: #64748b;
    font-size: 14px;
}

.seo-operation-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.seo-operation-panel {
    padding: 30px;
    border-radius: 22px;
    border: 1px solid #e5e7eb;
    background: #ffffff;
}

.seo-operation-panel.problem {
    background: #fff7ed;
    border-color: #fed7aa;
}

.seo-operation-panel.solution {
    background: #eff6ff;
    border-color: #bfdbfe;
}

.seo-operation-panel .seo-panel-label {
    display: inline-block;
    margin-bottom: 15px;
    font-size: 13px;
    font-weight: 900;
    letter-spacing: .04em;
}

.seo-operation-panel.problem .seo-panel-label {
    color: #c2410c;
}

.seo-operation-panel.solution .seo-panel-label {
    color: #2563eb;
}

.seo-operation-panel h3 {
    margin: 0 0 18px;
    font-size: 23px;
    line-height: 1.4;
}

.seo-operation-panel ul {
    margin: 0;
    padding-left: 20px;
    color: #475569;
}

.seo-operation-panel li + li {
    margin-top: 10px;
}

.seo-boundary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}

.seo-boundary-card {
    padding: 28px;
    border-radius: 20px;
}

.seo-boundary-card.does {
    border: 1px solid #bfdbfe;
    background: #eff6ff;
}

.seo-boundary-card.does-not {
    border: 1px solid #e5e7eb;
    background: #f8fafc;
}

.seo-boundary-card h3 {
    margin: 0 0 16px;
    font-size: 21px;
}

.seo-boundary-card ul {
    margin: 0;
    padding-left: 20px;
    color: #475569;
}

.seo-boundary-card li + li {
    margin-top: 9px;
}

.seo-context-callout {
    margin-top: 30px;
    padding: 26px 28px;
    border-left: 5px solid #2563eb;
    border-radius: 0 18px 18px 0;
    background: #f8fafc;
}

.seo-context-callout strong {
    display: block;
    margin-bottom: 6px;
    font-size: 18px;
}

.seo-context-callout p {
    margin: 0;
    color: #64748b;
}

.seo-text-link {
    display: inline-block;
    margin-top: 14px;
    color: #2563eb !important;
    font-weight: 800;
    text-decoration: none;
}

.seo-text-link:hover {
    text-decoration: underline;
}

@media (max-width: 860px) {

    .seo-situation-grid {
        grid-template-columns: 1fr 1fr;
    }

    .seo-parallel-board {
        grid-template-columns: 1fr;
    }

    .seo-parallel-cell.label {
        min-height: 52px;
    }

    .seo-operation-compare,
    .seo-boundary {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {

    .seo-situation-grid {
        grid-template-columns: 1fr;
    }
}


/* ==================================================
   SEO_PHASE2C2_QUESTION_MANAGEMENT_V1
   ================================================== */

.seo-question-stage {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}

.seo-question-device {
    padding: 30px;
    border: 1px solid #dbe3ef;
    border-radius: 24px;
    background: #ffffff;
    box-shadow: 0 18px 45px rgba(15,23,42,.055);
}

.seo-question-device-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 24px;
}

.seo-question-device-head strong {
    font-size: 20px;
}

.seo-question-device-head span {
    padding: 6px 11px;
    border-radius: 999px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 12px;
    font-weight: 900;
}

.seo-question-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.seo-question-button {
    padding: 19px 16px;
    border: 1px solid #dbeafe;
    border-radius: 17px;
    background: #f8fbff;
    text-align: center;
}

.seo-question-button.primary {
    border-color: #93c5fd;
    background: #eff6ff;
}

.seo-question-button strong {
    display: block;
    margin-bottom: 4px;
    color: #111827;
    font-size: 17px;
}

.seo-question-button small {
    color: #64748b;
}

.seo-question-queue {
    display: grid;
    gap: 12px;
}

.seo-question-queue-item {
    display: grid;
    grid-template-columns: 46px 1fr auto;
    gap: 14px;
    align-items: center;
    padding: 17px 18px;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    background: #ffffff;
}

.seo-question-queue-number {
    display: inline-flex;
    width: 38px;
    height: 38px;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: #0f172a;
    color: #ffffff;
    font-size: 13px;
    font-weight: 900;
}

.seo-question-queue-copy strong {
    display: block;
    color: #111827;
}

.seo-question-queue-copy small {
    display: block;
    margin-top: 3px;
    color: #64748b;
}

.seo-question-status {
    padding: 6px 10px;
    border-radius: 999px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 12px;
    font-weight: 900;
}

.seo-question-path {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
}

.seo-question-path-step {
    position: relative;
    min-height: 150px;
    padding: 24px 20px;
    border: 1px solid #dbe3ef;
    border-radius: 20px;
    background: #ffffff;
}

.seo-question-path-step b {
    display: inline-flex;
    width: 34px;
    height: 34px;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    border-radius: 10px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 13px;
}

.seo-question-path-step strong {
    display: block;
    margin-bottom: 7px;
    font-size: 17px;
}

.seo-question-path-step p {
    margin: 0;
    color: #64748b;
    font-size: 14px;
}

.seo-question-access-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.seo-question-access-card {
    padding: 28px;
    border: 1px solid #e5e7eb;
    border-radius: 20px;
    background: #ffffff;
}

.seo-question-access-card .tag {
    display: inline-block;
    margin-bottom: 14px;
    color: #2563eb;
    font-size: 13px;
    font-weight: 900;
}

.seo-question-access-card h3 {
    margin: 0;
    font-size: 20px;
}

.seo-question-access-card p {
    margin: 11px 0 0;
    color: #64748b;
}

.seo-question-definition {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.seo-question-definition article {
    padding: 30px;
    border-radius: 22px;
}

.seo-question-definition .is {
    border: 1px solid #bfdbfe;
    background: #eff6ff;
}

.seo-question-definition .is-not {
    border: 1px solid #e5e7eb;
    background: #f8fafc;
}

.seo-question-definition h3 {
    margin: 0 0 16px;
    font-size: 21px;
}

.seo-question-definition ul {
    margin: 0;
    padding-left: 20px;
    color: #475569;
}

.seo-question-definition li + li {
    margin-top: 9px;
}

@media (max-width: 860px) {

    .seo-question-stage,
    .seo-question-definition {
        grid-template-columns: 1fr;
    }

    .seo-question-path {
        grid-template-columns: 1fr;
    }

    .seo-question-access-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {

    .seo-question-buttons {
        grid-template-columns: 1fr;
    }

    .seo-question-queue-item {
        grid-template-columns: 42px 1fr;
    }

    .seo-question-status {
        grid-column: 2;
        justify-self: start;
    }
}


/* ==================================================
   SEO_PHASE2C3_GRADING_REQUEST_MANAGEMENT_V1
   ================================================== */

.seo-grading-stage {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}

.seo-grading-device {
    padding: 30px;
    border: 1px solid #dbe3ef;
    border-radius: 24px;
    background: #ffffff;
    box-shadow: 0 18px 45px rgba(15,23,42,.055);
}

.seo-grading-device-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 22px;
}

.seo-grading-device-head strong {
    font-size: 20px;
}

.seo-grading-device-head span {
    padding: 6px 11px;
    border-radius: 999px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 12px;
    font-weight: 900;
}

.seo-grading-work {
    padding: 24px;
    border: 1px solid #e5e7eb;
    border-radius: 19px;
    background: #f8fafc;
}

.seo-grading-work small {
    display: block;
    margin-bottom: 9px;
    color: #64748b;
    font-weight: 800;
}

.seo-grading-work strong {
    display: block;
    margin-bottom: 18px;
    color: #111827;
    font-size: 19px;
}

.seo-grading-request-button {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 58px;
    padding: 12px 18px;
    border-radius: 16px;
    background: #2563eb;
    color: #ffffff;
    font-size: 18px;
    font-weight: 900;
}

.seo-grading-queue {
    display: grid;
    gap: 12px;
}

.seo-grading-queue-item {
    display: grid;
    grid-template-columns: 46px 1fr auto;
    align-items: center;
    gap: 14px;
    padding: 17px 18px;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    background: #ffffff;
}

.seo-grading-queue-number {
    display: inline-flex;
    width: 38px;
    height: 38px;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: #0f172a;
    color: #ffffff;
    font-size: 13px;
    font-weight: 900;
}

.seo-grading-queue-copy strong {
    display: block;
    color: #111827;
}

.seo-grading-queue-copy small {
    display: block;
    margin-top: 3px;
    color: #64748b;
}

.seo-grading-status {
    padding: 6px 10px;
    border-radius: 999px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 12px;
    font-weight: 900;
}

.seo-grading-flow {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
}

.seo-grading-flow-step {
    min-height: 155px;
    padding: 24px 20px;
    border: 1px solid #dbe3ef;
    border-radius: 20px;
    background: #ffffff;
}

.seo-grading-flow-step b {
    display: inline-flex;
    width: 34px;
    height: 34px;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    border-radius: 10px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 13px;
}

.seo-grading-flow-step strong {
    display: block;
    margin-bottom: 7px;
    font-size: 17px;
}

.seo-grading-flow-step p {
    margin: 0;
    color: #64748b;
    font-size: 14px;
}

.seo-grading-difference {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.seo-grading-difference article {
    padding: 30px;
    border-radius: 22px;
}

.seo-grading-difference .request-side {
    border: 1px solid #bfdbfe;
    background: #eff6ff;
}

.seo-grading-difference .learning-side {
    border: 1px solid #ddd6fe;
    background: #f5f3ff;
}

.seo-grading-difference .label {
    display: inline-block;
    margin-bottom: 14px;
    font-size: 13px;
    font-weight: 900;
}

.seo-grading-difference .request-side .label {
    color: #2563eb;
}

.seo-grading-difference .learning-side .label {
    color: #7c3aed;
}

.seo-grading-difference h3 {
    margin: 0 0 14px;
    font-size: 23px;
}

.seo-grading-difference p {
    margin: 0;
    color: #475569;
}

.seo-grading-difference ul {
    margin: 18px 0 0;
    padding-left: 20px;
    color: #475569;
}

.seo-grading-difference li + li {
    margin-top: 8px;
}

.seo-grading-highlight {
    margin-top: 24px;
    padding: 24px 26px;
    border-left: 5px solid #2563eb;
    border-radius: 0 18px 18px 0;
    background: #f8fafc;
}

.seo-grading-highlight strong {
    display: block;
    margin-bottom: 7px;
    font-size: 18px;
}

.seo-grading-highlight p {
    margin: 0;
    color: #64748b;
}

@media (max-width: 860px) {

    .seo-grading-stage,
    .seo-grading-difference {
        grid-template-columns: 1fr;
    }

    .seo-grading-flow {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {

    .seo-grading-queue-item {
        grid-template-columns: 42px 1fr;
    }

    .seo-grading-status {
        grid-column: 2;
        justify-self: start;
    }
}


/* ==================================================
   SEO_PHASE2C4_FOCUS_MODE_V1
   ================================================== */

.seo-focus-device-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}

.seo-focus-device {
    padding: 30px;
    border: 1px solid #dbe3ef;
    border-radius: 24px;
    background: #ffffff;
    box-shadow: 0 18px 45px rgba(15,23,42,.055);
}

.seo-focus-device-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 24px;
}

.seo-focus-device-head strong {
    font-size: 20px;
}

.seo-focus-status {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 12px;
    border-radius: 999px;
    background: #ecfdf5;
    color: #047857;
    font-size: 13px;
    font-weight: 900;
}

.seo-focus-status::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
}

.seo-focus-app-list {
    display: grid;
    gap: 12px;
}

.seo-focus-app {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 17px 18px;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    background: #ffffff;
}

.seo-focus-app strong {
    color: #111827;
}

.seo-focus-app span {
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 900;
}

.seo-focus-app.allow {
    border-color: #bbf7d0;
    background: #f0fdf4;
}

.seo-focus-app.allow span {
    background: #dcfce7;
    color: #15803d;
}

.seo-focus-app.limit {
    border-color: #fecaca;
    background: #fff7f7;
}

.seo-focus-app.limit span {
    background: #fee2e2;
    color: #b91c1c;
}

.seo-focus-principles {
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap: 18px;
}

.seo-focus-principle {
    padding: 28px;
    border: 1px solid #e5e7eb;
    border-radius: 20px;
    background: #ffffff;
}

.seo-focus-principle b {
    display: inline-flex;
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    margin-bottom: 17px;
    border-radius: 11px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 13px;
}

.seo-focus-principle h3 {
    margin: 0;
    font-size: 20px;
    line-height: 1.45;
}

.seo-focus-principle p {
    margin: 11px 0 0;
    color: #64748b;
}

.seo-focus-flow {
    display: grid;
    grid-template-columns: repeat(5, minmax(0,1fr));
    gap: 12px;
}

.seo-focus-flow-step {
    min-height: 155px;
    padding: 24px 20px;
    border: 1px solid #dbe3ef;
    border-radius: 20px;
    background: #ffffff;
}

.seo-focus-flow-step b {
    display: inline-flex;
    width: 34px;
    height: 34px;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    border-radius: 10px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 13px;
}

.seo-focus-flow-step strong {
    display: block;
    margin-bottom: 7px;
    font-size: 17px;
}

.seo-focus-flow-step p {
    margin: 0;
    color: #64748b;
    font-size: 14px;
}

.seo-focus-boundary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.seo-focus-boundary article {
    padding: 30px;
    border-radius: 22px;
}

.seo-focus-boundary .keep {
    border: 1px solid #bbf7d0;
    background: #f0fdf4;
}

.seo-focus-boundary .reduce {
    border: 1px solid #fecaca;
    background: #fff7f7;
}

.seo-focus-boundary .label {
    display: inline-block;
    margin-bottom: 14px;
    font-size: 13px;
    font-weight: 900;
}

.seo-focus-boundary .keep .label {
    color: #15803d;
}

.seo-focus-boundary .reduce .label {
    color: #b91c1c;
}

.seo-focus-boundary h3 {
    margin: 0 0 16px;
    font-size: 22px;
}

.seo-focus-boundary ul {
    margin: 0;
    padding-left: 20px;
    color: #475569;
}

.seo-focus-boundary li + li {
    margin-top: 9px;
}

.seo-focus-notice {
    margin-top: 24px;
    padding: 24px 26px;
    border-left: 5px solid #64748b;
    border-radius: 0 18px 18px 0;
    background: #f8fafc;
}

.seo-focus-notice strong {
    display: block;
    margin-bottom: 7px;
    font-size: 18px;
}

.seo-focus-notice p {
    margin: 0;
    color: #64748b;
}

.seo-focus-use-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: 18px;
}

.seo-focus-use-card {
    padding: 28px;
    border: 1px solid #e5e7eb;
    border-radius: 20px;
    background: #ffffff;
}

.seo-focus-use-card h3 {
    margin: 0;
    font-size: 20px;
}

.seo-focus-use-card p {
    margin: 11px 0 0;
    color: #64748b;
}

@media (max-width: 860px) {

    .seo-focus-device-layout,
    .seo-focus-boundary {
        grid-template-columns: 1fr;
    }

    .seo-focus-principles {
        grid-template-columns: 1fr;
    }

    .seo-focus-flow {
        grid-template-columns: 1fr;
    }

    .seo-focus-use-grid {
        grid-template-columns: 1fr;
    }
}


/* ==================================================
   SEO_PHASE2E_MAIN_TOPIC_HUB_V1
   ================================================== */

.seo-discovery-inner--stack {
    display: block;
}

.seo-discovery-copy--wide {
    max-width: 860px;
}

.seo-discovery-section h1 {
    margin: 0;
    color: #111827;
    font-size: clamp(30px, 4vw, 44px);
    line-height: 1.28;
    letter-spacing: -.035em;
}

.seo-home-topic-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 32px;
}

.seo-home-topic-card {
    display: block;
    min-height: 160px;
    padding: 24px;
    border: 1px solid #dbeafe;
    border-radius: 20px;
    background: #ffffff;
    text-decoration: none;
    box-shadow: 0 10px 30px rgba(15, 23, 42, .045);
}

.seo-home-topic-card strong {
    display: block;
    margin-bottom: 9px;
    color: #111827;
    font-size: 18px;
    line-height: 1.45;
}

.seo-home-topic-card span {
    display: block;
    color: #64748b;
    font-size: 14px;
    line-height: 1.7;
}

.seo-home-topic-card:hover {
    border-color: #93c5fd;
    transform: translateY(-2px);
}

@media (max-width: 860px) {

    .seo-home-topic-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 560px) {

    .seo-home-topic-grid {
        grid-template-columns: 1fr;
    }

    .seo-home-topic-card {
        min-height: 0;
    }
}