* {
    box-sizing: border-box;
    min-width: 0;
}

html {
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    overscroll-behavior-x: none;
}

body {
    margin: 0;
    color: #21313c;
    background: #f4f7f8;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.65;
    max-width: 100%;
    width: 100%;
    overflow-x: hidden;
    overscroll-behavior-x: none;
}

a {
    color: #087ca7;
    overflow-wrap: anywhere;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

.site-header {
    background: #082032;
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 2147483000;
    width: 100%;
    max-width: 100%;
    isolation: isolate;
}

.adsbygoogle {
    position: relative;
    z-index: 1;
    width: 100%;
}

.ad-slot {
    position: relative;
    display: grid;
    place-items: center;
    width: min(100%, 970px);
    min-height: 90px;
    margin: 14px auto 24px;
    overflow: hidden;
    background: #f8fbfc;
    border: 1px solid #d7e8ee;
    border-radius: 8px;
}

.top-ad-slot {
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .72);
}

.top-ad-unit {
    min-height: 90px;
}

.ad-slot-label {
    position: absolute;
    top: 6px;
    left: 12px;
    z-index: 2;
    color: #6e8793;
    font-size: 10px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: .08em;
    text-transform: uppercase;
    pointer-events: none;
}

.ad-slot.is-filled {
    background: transparent;
    border-color: transparent;
    box-shadow: none;
}

.ad-slot.is-filled .ad-slot-label {
    display: none;
}

.ad-slot.is-unfilled {
    min-height: 0;
    height: 0;
    margin: 0;
    border: 0;
    box-shadow: none;
    background: transparent;
}

.ad-slot.is-unfilled .ad-slot-label {
    display: none;
}

.header-inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    max-width: 1180px;
    margin: 0 auto;
    padding: 16px 20px;
}

.logo {
    color: #fff;
    font-size: 24px;
    font-weight: 700;
    letter-spacing: .04em;
    text-decoration: none;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-check {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.nav-toggle {
    display: none;
}

.main-nav a {
    color: #d9eef7;
    padding: 8px 12px;
    border-radius: 6px;
    text-decoration: none;
}

.main-nav a:hover,
.main-nav a.active {
    color: #082032;
    background: #c8f1ff;
}

.container {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    background: #fff;
    min-height: calc(100vh - 190px);
    overflow-x: clip;
}

main {
    padding: 0 20px 36px;
    max-width: 100%;
    overflow-x: clip;
}

.hero {
    margin: 0 -20px 24px;
}

.hero picture,
.number-hero-banner picture {
    display: block;
}

.hero img {
    width: 100%;
}

.number-switcher {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 18px;
    margin: 20px 0 18px;
    padding: 16px;
    border: 1px solid #d7e8ee;
    border-radius: 8px;
    background: #f7fbfd;
}

.number-switcher label {
    color: #0c5d7a;
    font-weight: 700;
}

.number-switcher select {
    width: min(100%, 480px);
    padding: 10px 12px;
    border: 1px solid #b9ccd5;
    border-radius: 6px;
    color: #102a3a;
    background: #fff;
    font-size: 16px;
}

.number-intro {
    max-width: 1040px;
}

.number-hero-banner {
    margin: 4px -20px 28px;
    overflow: hidden;
    border-top: 1px solid #dce8ec;
    border-bottom: 1px solid #dce8ec;
    background: #edf8fc;
}

.number-hero-banner img {
    width: 100%;
    aspect-ratio: 1200 / 420;
    object-fit: cover;
}

.number-facts-panel {
    width: 100%;
    max-width: none;
    margin: 24px 0 0;
}

article,
.content-block {
    max-width: 900px;
    min-width: 0;
}

h1,
h2,
h3 {
    color: #102a3a;
    line-height: 1.25;
    overflow-wrap: anywhere;
    word-break: break-word;
}

h1 {
    margin: 24px 0 14px;
    font-size: 44px;
    text-wrap: balance;
}

h2 {
    margin: 30px 0 10px;
    font-size: 24px;
}

p {
    margin: 0 0 14px;
    font-size: 17px;
    overflow-wrap: break-word;
}

.breadcrumb {
    display: flex;
    flex-wrap: nowrap;
    gap: 8px;
    margin: 0;
    padding: 14px 20px;
    list-style: none;
    border-bottom: 1px solid #dce8ec;
    overflow-x: auto;
    overflow-y: hidden;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    max-width: 100%;
    overscroll-behavior-inline: contain;
}

.breadcrumb li {
    flex: 0 0 auto;
    white-space: nowrap;
}

.breadcrumb li + li::before {
    content: "/";
    margin-right: 8px;
    color: #77919f;
}

.tool-panel {
    display: grid;
    grid-template-columns: minmax(320px, 42%) 1fr;
    gap: 24px;
    align-items: start;
    margin: 24px 0;
}

.number-card {
    border: 1px solid #dce8ec;
    border-radius: 8px;
    overflow: hidden;
    background: #edf8fc;
    box-shadow: 0 10px 28px rgba(8, 32, 50, .08);
}

.number-card img {
    width: 100%;
    aspect-ratio: 1200 / 630;
    object-fit: cover;
}

.number-details {
    width: 100%;
    border: 1px solid #dce8ec;
    border-collapse: separate;
    border-spacing: 0;
    border-radius: 8px;
    background: #fbfdfe;
    box-shadow: 0 10px 26px rgba(8, 32, 50, .06);
    table-layout: fixed;
    overflow: hidden;
}

.number-details caption {
    padding: 12px;
    color: #0c5d7a;
    background: #f6fbfd;
    border-bottom: 1px solid #dce8ec;
    font-size: 18px;
    font-weight: 700;
    text-align: left;
}

.number-details th,
.number-details td {
    padding: 12px;
    border-bottom: 1px solid #dce8ec;
    text-align: left;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.number-details th {
    width: 42%;
    color: #0c5d7a;
    background: #edf8fc;
}

.number-details tr:last-child th,
.number-details tr:last-child td {
    border-bottom: 0;
}

.expanded-number {
    display: block;
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: break-all;
    font-family: Consolas, "Courier New", monospace;
    line-height: 1.45;
}

.db-content {
    margin-top: 18px;
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.db-content *,
.faq-content * {
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.db-content table,
.faq-content table {
    display: block;
    width: 100%;
    overflow-x: auto;
}

.db-content pre,
.db-content code,
.faq-content pre,
.faq-content code {
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.db-content img,
.faq-content img {
    max-width: 100%;
    height: auto;
}

.select-row {
    margin: 0 0 16px;
}

.select-row label {
    display: block;
    margin-bottom: 6px;
    font-weight: 700;
}

.select-row select {
    width: 100%;
    max-width: 380px;
    padding: 10px 12px;
    border: 1px solid #b9ccd5;
    border-radius: 6px;
    font-size: 16px;
    background: #fff;
}

.table-wrap {
    overflow-x: auto;
    margin-top: 24px;
}

.table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

.table caption {
    padding: 12px;
    color: #0c5d7a;
    font-size: 20px;
    font-weight: 700;
    text-align: left;
}

.table th,
.table td {
    padding: 12px;
    border-bottom: 1px solid #dce8ec;
    text-align: left;
    overflow-wrap: anywhere;
}

.table th {
    background: #edf8fc;
}

.seo-article {
    max-width: 980px;
}

.converter-panel {
    margin: 24px 0 30px;
    padding: 20px;
    border: 1px solid #d7e8ee;
    border-radius: 8px;
    background: #f7fbfd;
}

.converter-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 16px;
}

.eyebrow {
    margin: 0 0 6px;
    color: #0c5d7a;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.converter-head h1 {
    margin-top: 0;
}

.converter-form {
    display: grid;
    gap: 14px;
}

.converter-input-row {
    display: grid;
    gap: 8px;
}

.converter-input-row label,
.converter-options span {
    color: #0c5d7a;
    font-weight: 700;
}

.converter-input-row textarea,
.converter-options select,
.result-text {
    width: 100%;
    border: 1px solid #b9ccd5;
    border-radius: 6px;
    color: #102a3a;
    background: #fff;
    font: inherit;
}

.converter-input-row textarea {
    min-height: 96px;
    padding: 12px;
    resize: vertical;
}

.converter-options {
    display: grid;
    grid-template-columns: minmax(160px, 1fr) minmax(200px, 1fr) auto;
    gap: 12px;
    align-items: end;
}

.converter-options label {
    display: grid;
    gap: 6px;
}

.converter-options select {
    min-height: 44px;
    padding: 9px 10px;
}

.btn-like {
    min-height: 44px;
    padding: 10px 18px;
    border: 0;
    border-radius: 6px;
    color: #fff;
    background: #087ca7;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
}

.btn-like:hover {
    background: #0c5d7a;
}

.result-panel {
    margin-top: 18px;
    padding: 16px;
    border: 1px solid #c9e4ec;
    border-radius: 8px;
    background: #fff;
}

.result-panel h2 {
    margin: 0;
}

.result-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}

.copy-result-button {
    flex: 0 0 auto;
    min-height: 38px;
    padding: 8px 14px;
    border: 1px solid #18864b;
    border-radius: 6px;
    color: #fff;
    background: #18864b;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
}

.copy-result-button:hover,
.copy-result-button:focus-visible {
    color: #fff;
    background: #0f6f3a;
    border-color: #0f6f3a;
}

.copy-result-button.is-copied {
    border-color: #0b7f5a;
    color: #fff;
    background: #0b7f5a;
}

.result-text {
    min-height: 128px;
    padding: 12px;
    resize: vertical;
}

.quick-answer-text {
    margin: 0 0 12px;
    color: #102a3a;
    font-size: 18px;
    font-weight: 800;
    line-height: 1.45;
}

.copy-result-status {
    margin: 8px 0 0;
    color: #1a6b46;
    font-size: 14px;
    font-weight: 800;
}

.copy-result-status.is-error {
    color: #8a1f1f;
}

.number-practice-panel {
    margin-top: 18px;
    padding: 16px;
    border: 1px solid #b9dfce;
    border-radius: 8px;
    background: #fff;
}

.practice-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.practice-head h2 {
    margin: 0;
}

.practice-subtitle {
    margin: 5px 0 0;
    color: #0f6f56;
    font-size: 13px;
    font-weight: 800;
}

.practice-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(70px, 1fr));
    gap: 8px;
    margin: 0;
}

.practice-stats div {
    padding: 8px 10px;
    border: 1px solid #d7e8df;
    border-radius: 6px;
    background: #f7fbf9;
}

.practice-stats dt {
    color: #516f61;
    font-size: 12px;
    font-weight: 800;
}

.practice-stats dd {
    margin: 2px 0 0;
    color: #0d3024;
    font-size: 22px;
    font-weight: 900;
}

.practice-levels {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.practice-levels button {
    min-height: 34px;
    padding: 7px 11px;
    border: 1px solid #b9dfce;
    border-radius: 999px;
    color: #0f5d45;
    background: #f3fbf7;
    font: inherit;
    font-size: 14px;
    font-weight: 800;
    cursor: pointer;
}

.practice-levels button[aria-pressed="true"] {
    color: #fff;
    border-color: #0b7f5a;
    background: #0b7f5a;
}

.practice-card {
    display: grid;
    gap: 12px;
    margin-top: 14px;
}

.practice-word {
    margin: 0;
    padding: 13px 14px;
    border: 1px dashed #9fd2bd;
    border-radius: 8px;
    color: #102a3a;
    background: #f7fbf9;
    font-size: 24px;
    font-weight: 900;
    line-height: 1.25;
    overflow-wrap: anywhere;
}

.practice-form label {
    display: block;
    margin-bottom: 6px;
    color: #0c5d7a;
    font-size: 13px;
    font-weight: 800;
}

.practice-answer-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
}

.practice-answer-row input {
    min-height: 44px;
    font-size: 18px;
    font-weight: 800;
}

.practice-feedback {
    min-height: 22px;
    margin: 0;
    color: #516f61;
    font-weight: 800;
}

.practice-feedback[data-state="success"] {
    color: #0b6b42;
}

.practice-feedback[data-state="error"] {
    color: #8a1f1f;
}

.practice-feedback[data-state="done"] {
    color: #0c5d7a;
}

.practice-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.grammar-insights-panel {
    margin-top: 18px;
    padding: 16px;
    border: 1px solid #c9e4ec;
    border-radius: 8px;
    background: #fff;
}

.grammar-insights-panel h2 {
    margin-top: 0;
}

.grammar-insight-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.grammar-insight {
    padding: 14px;
    border: 1px solid #dce8ec;
    border-radius: 8px;
    background: #f7fbfd;
}

.grammar-insight h3 {
    margin: 0 0 8px;
    color: #0c5d7a;
    font-size: 17px;
}

.grammar-insight p {
    margin: 0;
    font-size: 15px;
    white-space: pre-line;
}

.place-value-panel {
    margin-top: 18px;
    padding: 16px;
    border: 1px solid #c9e4ec;
    border-radius: 8px;
    background: #fff;
}

.place-value-panel h2 {
    margin-top: 0;
}

.number-questions-panel {
    margin-top: 18px;
    padding: 16px;
    border: 1px solid #c9e4ec;
    border-radius: 8px;
    background: #fff;
}

.number-questions-panel h2 {
    margin-top: 0;
}

.number-questions-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.number-question-item {
    padding: 14px;
    border: 1px solid #dce8ec;
    border-radius: 8px;
    background: #f9fcfd;
}

.number-question-item h3 {
    margin: 0 0 8px;
    color: #0c5d7a;
    font-size: 17px;
}

.number-question-item p {
    margin: 0;
    font-size: 15px;
}

.place-value-expanded {
    padding: 12px;
    border: 1px solid #dce8ec;
    border-radius: 6px;
    background: #f7fbfd;
    font-family: Consolas, "Courier New", monospace;
    font-size: 15px;
    line-height: 1.5;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.place-value-panel .table-wrap {
    margin-top: 14px;
}

.place-value-table th:first-child {
    width: 42%;
}

.place-value-table td:nth-child(2),
.place-value-table td:nth-child(3) {
    width: 90px;
    font-weight: 800;
}

.place-value-table td:nth-child(4) {
    font-family: Consolas, "Courier New", monospace;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.number-sequence-panel {
    margin-top: 18px;
    padding: 16px;
    border: 1px solid #c9e4ec;
    border-radius: 8px;
    background: #fff;
}

.table-section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 10px;
}

.table-section-head h2 {
    margin: 0;
}

.table-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-end;
}

.table-search {
    display: grid;
    grid-template-columns: auto minmax(220px, 420px) auto;
    align-items: center;
    gap: 10px;
    margin: 0 0 12px;
    padding: 12px;
    border: 1px solid #dce8ec;
    border-radius: 8px;
    background: #f7fbfd;
}

.table-search label,
.table-search-status {
    color: #0c5d7a;
    font-size: 14px;
    font-weight: 800;
}

.table-search input {
    width: 100%;
    min-height: 42px;
    padding: 8px 12px;
    border: 1px solid #b8d2dc;
    border-radius: 6px;
    color: #102a3a;
    background: #fff;
    font: inherit;
}

.table-search input:focus {
    border-color: #087ca7;
    box-shadow: 0 0 0 3px rgba(8, 124, 167, .14);
    outline: 0;
}

.table-action-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 8px 14px;
    border: 1px solid #087ca7;
    border-radius: 6px;
    color: #087ca7;
    background: #fff;
    font: inherit;
    font-weight: 800;
    line-height: 1.2;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
}

.table-action-button:hover,
.table-action-button:focus-visible {
    color: #fff;
    background: #087ca7;
}

.table-action-button.is-print {
    border-color: #2d6f9f;
    color: #1f5f8d;
    background: #f2f8fc;
}

.table-action-button.is-print:hover,
.table-action-button.is-print:focus-visible {
    color: #fff;
    background: #2d6f9f;
}

.table-action-button.is-pdf {
    border-color: #c62828;
    color: #b71c1c;
    background: #fff5f5;
}

.table-action-button.is-pdf:hover,
.table-action-button.is-pdf:focus-visible {
    color: #fff;
    background: #c62828;
}

.table-action-button.is-csv {
    border-color: #18864b;
    color: #08783f;
    background: #f1fbf5;
}

.table-action-button.is-csv:hover,
.table-action-button.is-csv:focus-visible {
    color: #fff;
    background: #18864b;
}

.btn-like:disabled,
.table-action-button:disabled,
.practice-answer-row input:disabled {
    cursor: wait;
    opacity: .68;
}

.number-sequence-table th:first-child {
    width: 28%;
}

.number-sequence-table td {
    overflow-wrap: anywhere;
    word-break: break-word;
}

.converter-meta {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin: 14px 0 0;
}

.converter-meta div {
    padding: 12px;
    border: 1px solid #dce8ec;
    border-radius: 8px;
    background: #f7fbfd;
}

.converter-meta dt {
    color: #0c5d7a;
    font-size: 13px;
    font-weight: 800;
}

.converter-meta dd {
    margin: 4px 0 0;
    overflow-wrap: anywhere;
}

.conversion-error {
    margin-top: 16px;
    padding: 12px 14px;
    border: 1px solid #f0b8b8;
    border-radius: 8px;
    color: #8a1f1f;
    background: #fff6f6;
    font-weight: 700;
}

.page-section-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding: 10px;
    border: 1px solid #d7e8df;
    border-radius: 8px;
    background: #f8fcfa;
    overflow-x: auto;
    scrollbar-width: thin;
}

.page-section-nav span {
    flex: 0 0 auto;
    color: #516f61;
    font-size: 13px;
    font-weight: 900;
}

.page-section-nav a {
    flex: 0 0 auto;
    padding: 7px 10px;
    border: 1px solid #c3dfd2;
    border-radius: 999px;
    color: #0f5d45;
    background: #fff;
    font-size: 13px;
    font-weight: 800;
    text-decoration: none;
    white-space: nowrap;
}

.page-section-nav a:hover,
.page-section-nav a:focus-visible {
    color: #fff;
    border-color: #0b7f5a;
    background: #0b7f5a;
}

.example-table-section {
    max-width: 980px;
    margin-top: 26px;
}

.grammar-profile-section {
    max-width: 980px;
    margin-top: 26px;
}

.grammar-profile-section .table th {
    width: 210px;
}

.number-step-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.step-link {
    display: grid;
    gap: 3px;
    padding: 14px;
    border: 1px solid #c9e4ec;
    border-radius: 8px;
    background: #fff;
    text-decoration: none;
}

.step-link:hover {
    border-color: #087ca7;
    background: #f6fbfd;
}

.step-link[aria-disabled="true"] {
    color: #77919f;
    background: #f4f7f8;
    cursor: default;
}

.step-link span {
    color: #0c5d7a;
    font-size: 13px;
    font-weight: 800;
    text-transform: uppercase;
}

.step-link strong {
    color: #102a3a;
    overflow-wrap: anywhere;
}

.number-detail-content,
.number-facts-panel .content-block,
.number-detail-content .db-content,
.number-detail-content .detail-faq {
    width: 100%;
    max-width: none;
}

.quick-answer-panel {
    margin: 16px 0 18px;
    padding: 16px 18px;
    border: 1px solid #b8dcca;
    border-radius: 8px;
    background: #f2fbf6;
}

.quick-answer-panel h2 {
    margin: 0 0 8px;
    color: #006b4a;
    font-size: 22px;
}

.quick-answer-panel p {
    margin: 0;
    color: #102a3a;
    font-size: 18px;
}

.quick-answer-panel strong {
    color: #006b4a;
}

.number-learning-callout,
.nearby-large-numbers {
    margin-top: 24px;
}

.nearby-large-numbers .table-wrap {
    margin-top: 0;
}

.nearby-large-numbers .is-current-row {
    background: #f2fbf6;
}

.nearby-large-numbers .is-current-row td:first-child {
    color: #006b4a;
    font-weight: 900;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin: 24px 0;
}

.feature-grid div {
    border: 1px solid #dce8ec;
    border-radius: 8px;
    padding: 16px;
    background: #f7fbfd;
}

.feature-grid h2 {
    margin: 0 0 8px;
    color: #0c5d7a;
    font-size: 18px;
}

.feature-grid p {
    margin: 0;
    font-size: 15px;
}

.worksheet-callout {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin: 24px 0;
    padding: 18px;
    border: 1px solid #b8dcca;
    border-radius: 8px;
    background: #f2fbf6;
}

.worksheet-callout h2 {
    margin: 0 0 6px;
    color: #006b4a;
    font-size: 22px;
}

.worksheet-callout p {
    margin: 0;
}

.scale-note {
    margin: 24px 0;
    padding: 16px 18px;
    border: 1px solid #dce8ec;
    border-radius: 8px;
    background: #f7fbfd;
}

.scale-note h2 {
    margin: 0 0 8px;
    color: #0c5d7a;
    font-size: 22px;
}

.scale-note p {
    margin: 0;
}

.formula-panel,
.scale-comparison {
    display: grid;
    gap: 16px;
    margin: 24px 0;
    padding: 18px;
    border: 1px solid #c9e4ec;
    border-radius: 8px;
    background: #fbfdfe;
}

.formula-panel h2,
.scale-comparison h2 {
    margin-top: 0;
}

.formula-panel p:last-child,
.scale-comparison p:last-child {
    margin-bottom: 0;
}

.formula-box {
    padding: 16px;
    border: 1px solid #b8dcca;
    border-radius: 8px;
    background: #f2fbf6;
}

.formula-box span {
    display: block;
    color: #006b4a;
    font-size: 13px;
    font-weight: 900;
    text-transform: uppercase;
}

.formula-box strong {
    display: block;
    margin-top: 4px;
    color: #082032;
    font-family: Consolas, "Courier New", monospace;
    font-size: 30px;
    line-height: 1.2;
    overflow-wrap: anywhere;
}

.formula-box p {
    margin: 8px 0 0;
    color: #38586a;
    font-size: 15px;
}

.formula-example-grid,
.scale-comparison-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.scale-comparison-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.formula-example-grid div,
.scale-comparison-grid div {
    padding: 14px;
    border: 1px solid #dce8ec;
    border-radius: 8px;
    background: #fff;
}

.formula-example-grid strong,
.formula-example-grid span {
    display: block;
}

.formula-example-grid strong,
.scale-comparison-grid h3 {
    margin: 0 0 6px;
    color: #0c5d7a;
    font-size: 17px;
}

.formula-example-grid span,
.scale-comparison-grid p {
    margin: 0;
    color: #38586a;
    font-size: 15px;
}

.number-formula-panel {
    margin: 18px 0 24px;
}

.worksheet-callout-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-end;
}

.worksheet-hub {
    margin-top: 22px;
}

.worksheet-hub-head {
    max-width: 820px;
    margin-bottom: 16px;
}

.worksheet-hub-head h2,
.worksheet-hub-head p {
    margin: 0;
}

.worksheet-hub-head p {
    margin-top: 6px;
    color: #38586a;
}

.worksheet-card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.worksheet-card {
    display: grid;
    gap: 12px;
    align-content: start;
    padding: 18px;
    border: 1px solid #c9e4ec;
    border-radius: 8px;
    background: #fff;
}

.worksheet-card-kind {
    justify-self: start;
    padding: 5px 9px;
    border: 1px solid #9dd7bd;
    border-radius: 999px;
    color: #006b4a;
    background: #f2fbf6;
    font-size: 13px;
    font-weight: 900;
}

.worksheet-card h3 {
    margin: 0;
    font-size: 24px;
}

.worksheet-card p {
    margin: 0;
}

.worksheet-card ul {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.worksheet-card li {
    padding: 6px 9px;
    border: 1px solid #dce8ec;
    border-radius: 6px;
    color: #0c5d7a;
    background: #f7fbfd;
    font-size: 13px;
    font-weight: 800;
}

.seo-table caption {
    background: #f6fbfd;
    border-bottom: 1px solid #dce8ec;
}

.seo-faq {
    max-width: 900px;
    margin-top: 30px;
    padding-top: 8px;
}

.seo-faq h2 {
    margin-bottom: 16px;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.faq-item {
    border: 1px solid #dce8ec;
    border-radius: 8px;
    padding: 16px;
    background: #fbfdfe;
}

.faq-item h3 {
    margin: 0 0 8px;
    color: #0c5d7a;
    font-size: 18px;
}

.faq-item p {
    margin: 0;
    font-size: 15px;
}

.worksheet-builder,
.worksheet-preview {
    margin-top: 18px;
}

.worksheet-builder {
    padding: 18px;
    border: 1px solid #c9e4ec;
    border-radius: 8px;
    background: #fff;
}

.worksheet-builder-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.worksheet-builder-head h2,
.worksheet-builder-head p {
    margin: 0;
}

.worksheet-builder-head p {
    margin-top: 6px;
    color: #38586a;
}

.worksheet-id {
    padding: 8px 10px;
    border: 1px solid #dce8ec;
    border-radius: 6px;
    color: #0c5d7a;
    background: #f7fbfd;
    font-size: 13px;
    font-weight: 800;
    white-space: nowrap;
}

.worksheet-form {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) minmax(130px, .45fr);
    gap: 14px;
}

.worksheet-form label {
    display: grid;
    gap: 6px;
    color: #0c5d7a;
    font-weight: 800;
}

.worksheet-form select {
    min-height: 42px;
    padding: 8px 10px;
    border: 1px solid #b8d2dc;
    border-radius: 6px;
    color: #102a3a;
    background: #fff;
    font: inherit;
}

.worksheet-actions {
    display: flex;
    flex-wrap: wrap;
    grid-column: 1 / -1;
    gap: 8px;
}

.zero-practice {
    margin-top: 18px;
    padding: 18px;
    border: 1px solid #b8dcca;
    border-radius: 8px;
    background: linear-gradient(180deg, #f2fbf6 0%, #fff 100%);
}

.zero-practice-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.zero-practice-head h2,
.zero-practice-head p {
    margin: 0;
}

.zero-practice-head p {
    margin-top: 6px;
    color: #38586a;
}

.zero-practice-level {
    min-width: 112px;
    padding: 8px 12px;
    border: 1px solid #9dd7bd;
    border-radius: 6px;
    color: #006b4a;
    background: #fff;
    font-size: 14px;
    font-weight: 900;
    text-align: center;
}

.zero-practice-layout {
    display: grid;
    grid-template-columns: minmax(220px, .75fr) minmax(0, 1.25fr);
    gap: 16px;
    align-items: stretch;
}

.zero-practice-side,
.zero-question-card {
    border: 1px solid #d7e8ee;
    border-radius: 8px;
    background: #fff;
}

.zero-practice-side {
    display: grid;
    align-content: start;
    gap: 14px;
    padding: 14px;
}

.zero-practice-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
}

.zero-practice-stats div {
    padding: 10px;
    border: 1px solid #dce8ec;
    border-radius: 6px;
    background: #f7fbfd;
}

.zero-practice-stats span {
    display: block;
    color: #0c5d7a;
    font-size: 12px;
    font-weight: 800;
}

.zero-practice-stats strong {
    display: block;
    margin-top: 4px;
    color: #082032;
    font-size: 22px;
    line-height: 1;
}

.zero-level-buttons {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.zero-level-buttons button {
    min-height: 38px;
    padding: 8px 10px;
    border: 1px solid #9dd7bd;
    border-radius: 999px;
    color: #006b4a;
    background: #fff;
    font: inherit;
    font-weight: 800;
    cursor: pointer;
}

.zero-level-buttons button.is-active,
.zero-level-buttons button:hover,
.zero-level-buttons button:focus-visible {
    color: #fff;
    background: #00845d;
    outline: 0;
}

.zero-progress-track {
    height: 10px;
    overflow: hidden;
    border-radius: 999px;
    background: #dce8ec;
}

.zero-progress-track span {
    display: block;
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: #00845d;
    transition: width .22s ease;
}

.zero-question-card {
    padding: 18px;
}

.zero-question-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.zero-question-meta span {
    padding: 6px 9px;
    border: 1px solid #dce8ec;
    border-radius: 999px;
    color: #0c5d7a;
    background: #f7fbfd;
    font-size: 13px;
    font-weight: 900;
}

.zero-question-card h3 {
    margin: 0;
    color: #082032;
    font-size: 32px;
    line-height: 1.12;
    overflow-wrap: anywhere;
}

.zero-question-card p {
    margin: 10px 0 0;
    color: #38586a;
}

.zero-answer-field {
    display: grid;
    gap: 7px;
    margin-top: 16px;
    color: #0c5d7a;
    font-weight: 800;
}

.zero-answer-field input {
    width: min(260px, 100%);
    min-height: 46px;
    padding: 8px 12px;
    border: 1px solid #b8d2dc;
    border-radius: 6px;
    color: #082032;
    background: #fff;
    font: inherit;
    font-size: 22px;
    font-weight: 900;
}

.zero-answer-field input:focus {
    border-color: #00845d;
    box-shadow: 0 0 0 3px rgba(0, 132, 93, .14);
    outline: 0;
}

.zero-practice-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.zero-feedback {
    min-height: 44px;
    margin-top: 14px;
    padding: 10px 12px;
    border: 1px solid #dce8ec;
    border-radius: 6px;
    color: #38586a;
    background: #f7fbfd;
    font-weight: 700;
}

.zero-feedback.is-correct {
    border-color: #9dd7bd;
    color: #006b4a;
    background: #f2fbf6;
}

.zero-feedback.is-wrong {
    border-color: #f0c2b8;
    color: #8a321e;
    background: #fff7f4;
}

.worksheet-page {
    max-width: 840px;
    padding: 26px;
    border: 1px solid #d0e1e8;
    border-radius: 8px;
    background: #fff;
}

.worksheet-page-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid #dce8ec;
}

.worksheet-brand {
    color: #006b4a;
    font-size: 13px;
    font-weight: 900;
    text-transform: uppercase;
}

.worksheet-page h2 {
    margin: 4px 0 0;
    font-size: 24px;
}

.worksheet-meta {
    color: #38586a;
    font-size: 14px;
    font-weight: 800;
    text-align: right;
}

.worksheet-question-list {
    display: grid;
    gap: 16px;
    margin: 22px 0 0;
    padding-left: 24px;
}

.worksheet-question-list li {
    padding-left: 4px;
}

.worksheet-answer-line {
    display: block;
    width: min(320px, 100%);
    height: 1px;
    margin-top: 12px;
    background: #66808c;
}

.worksheet-faq {
    margin-top: 30px;
}

@media print {
    .site-header,
    .site-footer,
    .breadcrumb,
    .worksheet-intro,
    .worksheet-builder,
    .worksheet-faq,
    .back-to-top,
    .ad-slot,
    .adsbygoogle {
        display: none !important;
    }

    body {
        background: #fff !important;
    }

    .container {
        max-width: none;
        padding: 0;
    }

    .worksheet-preview {
        margin: 0;
    }

    .worksheet-page {
        max-width: none;
        border: 0;
        border-radius: 0;
        padding: 0;
    }
}

.detail-faq {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    max-width: 980px;
    margin-top: 36px;
    padding: 22px;
    border: 1px solid #d7e8ee;
    border-radius: 8px;
    background: linear-gradient(180deg, #f6fbfd 0%, #fff 100%);
}

.detail-faq h2 {
    grid-column: 1 / -1;
    margin: 0 0 4px;
    color: #102a3a;
}

.detail-faq h3 {
    margin: 16px 0 0;
    padding: 14px 16px 6px;
    border: 1px solid #dce8ec;
    border-bottom: 0;
    border-radius: 8px 8px 0 0;
    color: #0c5d7a;
    background: #edf8fc;
    font-size: 18px;
}

.detail-faq h3 + p {
    margin: 0;
    padding: 0 16px 16px;
    border: 1px solid #dce8ec;
    border-top: 0;
    border-radius: 0 0 8px 8px;
    background: #fff;
    font-size: 16px;
}

.detail-faq .faq-item {
    margin: 0;
    padding: 16px;
    border: 1px solid #dce8ec;
    border-radius: 8px;
    background: #fff;
}

.detail-faq .faq-item h3 {
    margin: 0 0 8px;
    padding: 0;
    border: 0;
    border-radius: 0;
    color: #0c5d7a;
    background: transparent;
    font-size: 18px;
}

.detail-faq .faq-item p {
    margin: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    font-size: 16px;
}

.links {
    columns: 2;
    padding-left: 22px;
}

.links li {
    margin: 0 0 8px;
}

.site-footer {
    max-width: 1180px;
    margin: 0 auto;
    color: #d9eef7;
    background: #082032;
}

.footer-inner {
    display: grid;
    grid-template-columns: minmax(240px, 1.5fr) repeat(3, minmax(160px, 1fr));
    gap: 28px;
    padding: 38px 28px 30px;
}

.footer-logo {
    display: inline-block;
    margin-bottom: 12px;
    color: #fff;
    font-size: 24px;
    font-weight: 800;
    letter-spacing: .03em;
    text-decoration: none;
}

.footer-brand p,
.footer-column p {
    margin: 0;
    color: #b8d0dc;
    font-size: 15px;
}

.footer-mail {
    display: inline-flex;
    margin-top: 16px;
    color: #082032;
    background: #c8f1ff;
    border-radius: 6px;
    padding: 9px 12px;
    font-weight: 700;
    text-decoration: none;
}

.footer-column h2 {
    margin: 0 0 12px;
    color: #fff;
    font-size: 16px;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.footer-column ul {
    display: grid;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.footer-column a {
    color: #d9eef7;
    text-decoration: none;
}

.footer-column a:hover,
.footer-bottom a:hover {
    color: #c8f1ff;
    text-decoration: underline;
}

.footer-muted-list li {
    color: #9fb9c6;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    padding: 16px 28px;
    border-top: 1px solid rgba(200, 241, 255, .18);
    color: #9fb9c6;
    background: rgba(0, 0, 0, .16);
}

.footer-bottom p {
    margin: 0;
    font-size: 14px;
}

.footer-bottom a {
    color: #d9eef7;
    text-decoration: none;
}

.back-to-top {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 80;
    display: inline-grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border: 1px solid #0b7f5a;
    border-radius: 999px;
    color: #fff;
    background: #0b7f5a;
    box-shadow: 0 12px 28px rgba(8, 32, 50, .18);
    font-size: 22px;
    font-weight: 900;
    line-height: 1;
    text-decoration: none;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition: opacity .18s ease, transform .18s ease, background .18s ease;
}

.back-to-top:hover,
.back-to-top:focus-visible {
    border-color: #087ca7;
    background: #087ca7;
}

.back-to-top.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

@media (max-width: 720px) {
    body {
        position: relative;
    }

    .site-header {
        box-shadow: 0 10px 24px rgba(8, 32, 50, .16);
        overflow: visible;
        z-index: 2147483000;
    }

    .header-inner {
        align-items: center;
        gap: 14px;
        padding: 14px 18px;
        z-index: 2147483001;
    }

    .logo {
        font-size: 22px;
        letter-spacing: .02em;
    }

    .nav-toggle {
        display: inline-flex;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
        width: 44px;
        height: 44px;
        margin-left: auto;
        border: 1px solid rgba(200, 241, 255, .38);
        border-radius: 8px;
        background: rgba(255, 255, 255, .06);
        cursor: pointer;
        position: relative;
        z-index: 2147483003;
    }

    .nav-toggle span {
        display: block;
        width: 20px;
        height: 2px;
        margin: 0 auto;
        border-radius: 999px;
        background: #fff;
        transition: transform .2s ease, opacity .2s ease;
    }

    .main-nav {
        position: fixed;
        top: 66px;
        left: 18px;
        right: 18px;
        z-index: 2147483002;
        display: grid;
        gap: 6px;
        width: auto;
        max-height: calc(100dvh - 86px);
        overflow-y: auto;
        padding: 10px;
        border: 1px solid #d7edf5;
        border-radius: 8px;
        background: #fff;
        box-shadow: 0 18px 40px rgba(8, 32, 50, .18);
        opacity: 0;
        transform: translateY(-8px);
        visibility: hidden;
        transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
    }

    .main-nav a {
        color: #102a3a;
        width: 100%;
        padding: 12px 14px;
        border-radius: 6px;
        font-weight: 700;
    }

    .main-nav a:hover,
    .main-nav a.active {
        color: #082032;
        background: #c8f1ff;
    }

    .nav-check:checked ~ .main-nav {
        opacity: 1;
        transform: translateY(0);
        visibility: visible;
    }

    .nav-check:checked + .nav-toggle span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav-check:checked + .nav-toggle span:nth-child(2) {
        opacity: 0;
    }

    .nav-check:checked + .nav-toggle span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .container {
        width: 100%;
        max-width: 100%;
        overflow-x: clip;
    }

    main {
        padding: 0 12px 28px;
        overflow: hidden;
    }

    article,
    .seo-article {
        width: 100%;
        max-width: 100%;
    }

    .breadcrumb {
        padding: 12px;
        font-size: 15px;
        margin: 0;
        width: 100%;
    }

    .number-switcher {
        display: grid;
        gap: 8px;
        margin: 14px 0 16px;
        padding: 12px;
    }

    .number-switcher select {
        width: 100%;
    }

    .number-hero-banner {
        margin: 0 -12px 22px;
        padding: 12px;
        background: #f6fbfd;
    }

    .number-hero-banner img {
        aspect-ratio: auto;
        height: auto;
        border: 1px solid #d7e8ee;
        border-radius: 8px;
        object-fit: contain;
    }

    .number-facts-panel {
        max-width: 100%;
        margin: 18px 0 0;
    }

    h1 {
        font-size: 30px;
        line-height: 1.15;
        overflow-wrap: break-word;
        word-break: normal;
    }

    h2 {
        font-size: 24px;
    }

    .tool-panel {
        width: 100%;
        max-width: 100%;
        grid-template-columns: 1fr;
        gap: 18px;
        margin: 18px 0;
        min-width: 0;
    }

    .number-card {
        width: 100%;
    }

    .content-block {
        width: 100%;
        max-width: 100%;
    }

    .select-row select {
        max-width: none;
    }

    .number-details,
    .number-details tbody,
    .number-details tr,
    .number-details th,
    .number-details td {
        display: block;
        width: 100%;
    }

    .number-details {
        border: 0;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
        overflow: visible;
    }

    .number-details caption {
        display: block;
        width: 100%;
        margin: 0 0 10px;
        padding: 14px;
        border: 1px solid #dce8ec;
        border-radius: 8px;
        background: #f6fbfd;
        font-size: 17px;
        line-height: 1.35;
        text-align: left;
    }

    .number-details tbody {
        display: grid;
        gap: 10px;
    }

    .number-details tr {
        overflow: hidden;
        border: 1px solid #dce8ec;
        border-radius: 8px;
        background: #fbfdfe;
    }

    .number-details th,
    .number-details td {
        border-bottom: 0;
        padding: 10px 12px;
    }

    .number-details th {
        background: #edf8fc;
        font-size: 15px;
    }

    .number-details td {
        padding-top: 0;
        background: #fff;
        font-size: 16px;
    }

    .number-details tr:last-child {
        border-bottom: 0;
    }

    .expanded-number {
        font-size: 13px;
        line-height: 1.35;
    }

    .links {
        columns: 1;
    }

    .links a {
        overflow-wrap: anywhere;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .formula-panel,
    .scale-comparison {
        padding: 14px;
    }

    .formula-example-grid,
    .formula-example-grid.compact,
    .scale-comparison-grid {
        grid-template-columns: 1fr;
    }

    .formula-box strong {
        font-size: 24px;
    }

    .worksheet-card-grid {
        grid-template-columns: 1fr;
    }

    .worksheet-callout,
    .zero-practice-head,
    .worksheet-builder-head,
    .worksheet-page-head {
        align-items: stretch;
        flex-direction: column;
    }

    .worksheet-form,
    .zero-practice-layout {
        grid-template-columns: 1fr;
    }

    .worksheet-id,
    .zero-practice-level {
        width: 100%;
        white-space: normal;
    }

    .worksheet-callout-actions {
        justify-content: stretch;
    }

    .worksheet-callout-actions .btn-like,
    .worksheet-callout-actions .table-action-button {
        flex: 1 1 100%;
    }

    .worksheet-actions,
    .zero-practice-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .zero-practice-stats {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .zero-practice-stats div {
        padding: 9px 7px;
    }

    .zero-practice-stats strong {
        font-size: 20px;
    }

    .zero-question-card h3 {
        font-size: 26px;
    }

    .zero-answer-field input {
        width: 100%;
    }

    .worksheet-meta {
        text-align: left;
    }

    .converter-panel {
        margin-top: 16px;
        padding: 14px;
    }

    .page-section-nav {
        margin-top: 14px;
        padding: 8px;
    }

    .converter-head {
        display: block;
    }

    .converter-options,
    .converter-meta,
    .grammar-insight-list,
    .number-questions-list,
    .practice-answer-row,
    .number-step-nav {
        grid-template-columns: 1fr;
    }

    .practice-head {
        gap: 10px;
        flex-direction: column;
    }

    .number-practice-panel {
        padding: 12px;
    }

    .practice-stats {
        width: 100%;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 6px;
    }

    .practice-stats div {
        padding: 7px 8px;
    }

    .practice-stats dt {
        font-size: 11px;
    }

    .practice-stats dd {
        font-size: 18px;
    }

    .practice-levels {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 7px;
        margin-top: 12px;
    }

    .practice-levels button {
        width: 100%;
        min-height: 36px;
        padding: 7px 8px;
        font-size: 13px;
    }

    .practice-levels button:last-child {
        grid-column: 1 / -1;
    }

    .practice-card {
        gap: 10px;
        margin-top: 12px;
    }

    .practice-word {
        font-size: 21px;
        padding: 11px 12px;
    }

    .practice-actions {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .table-section-head {
        align-items: stretch;
        flex-direction: column;
    }

    .table-actions {
        justify-content: stretch;
    }

    .table-search {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .table-search-status {
        justify-self: start;
    }

    .table-action-button {
        flex: 1 1 150px;
    }

    .grammar-profile-section .table th {
        width: auto;
    }

    .btn-like {
        width: 100%;
    }

    .faq-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .detail-faq {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-top: 28px;
        padding: 14px;
    }

    .detail-faq h3 {
        padding: 12px 12px 6px;
        font-size: 17px;
    }

    .detail-faq h3 + p {
        padding: 0 12px 14px;
        font-size: 15px;
    }

    .footer-inner {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 30px 20px 24px;
    }

    .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
        padding: 16px 20px;
    }

    .footer-mail {
        width: 100%;
        justify-content: center;
        text-align: center;
    }

    .back-to-top {
        right: 14px;
        bottom: 14px;
        width: 40px;
        height: 40px;
        font-size: 20px;
    }

    .ad-slot {
        width: 100%;
        min-height: 74px;
        margin: 10px auto 18px;
        border-radius: 0;
        border-left: 0;
        border-right: 0;
    }

    .top-ad-unit {
        min-height: 74px;
    }
}