* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f5f5f5;
    color: #000;
}

.page-wrapper {
    width: 100%;
    max-width: 1000px;
    margin: auto;
}

header {
    background: #fff;
    padding: 0 20px;
    min-height: 70px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: #fff;
    padding: 0 20px;
    min-height: 70px;
}

.header-inner {
    min-height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #303030;
}

.header-left,
.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
    width: 260px;
}

.header-right {
    justify-content: flex-end;
}

.header-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0;
    border: 0;
    background: transparent;
    color: #000;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
}

.header-button svg,
.login-link svg {
    fill: #000;
    display: block;
}

.search-button {
    width: 18px;
    height: 18px;
    justify-content: center;
}

.header-logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.header-logo img {
    display: block;
    height: 36px;
    width: auto;
}

.login-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #000;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
}

.abo-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 34px;
    padding: 0 12px;
    background: #000;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
}

@media(max-width: 767px) {
    .site-header {
        padding: 0 16px;
        min-height: 58px;
    }

    .header-inner {
        min-height: 58px;
    }

    .header-left,
    .header-right {
        width: auto;
        gap: 14px;
    }

    .menu-button span {
        display: none;
    }

    .search-button,
    .login-link {
        display: none;
    }

    .header-logo img {
        height: 28px;
    }

    .abo-link {
        height: 30px;
        font-size: 14px;
        padding: 0 10px;
    }
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 13px 20px;
    background: #fff;
    border-bottom: 1px solid #252525;
    color: #000;
    font-size: 15px;
    font-weight: 700;
    overflow-x: auto;
    white-space: nowrap;
}

.breadcrumbs a,
.breadcrumbs span {
    display: inline-flex;
    align-items: center;
    color: #000;
    text-decoration: none;
}

.breadcrumbs a:not(.breadcrumb-home)::after {
    content: "";
    width: 8px;
    height: 8px;
    border-top: 1px solid #000;
    border-right: 1px solid #000;
    transform: rotate(45deg);
    margin-left: 8px;
    opacity: 0.8;
}

.breadcrumbs svg {
    width: 24px;
    height: 24px;
    fill: #000;
}

.ad-notice {
    padding: 12px 20px;
    background: #fff;
    color: #000;
    font-size: 14px;
    line-height: 1.4;
}

.ad-notice strong {
    color: #000;
    font-weight: 700;
}

@media(max-width: 767px) {
    .breadcrumbs {
        padding: 10px 16px;
        font-size: 13px;
    }

    .ad-notice {
        padding: 10px 16px;
        font-size: 12px;
    }
}

.article-page {
    background: #fff;
}

.article-section {
    padding: 40px 0 80px;
}

.article-inner {
    padding: 0 136px;
}

.article-label {
    margin: 0 0 22px;
    color: #000;
    font-size: 12px;
    line-height: 1.2;
    text-transform: uppercase;
}

.article-inner h1 {
    margin: 0 0 36px;
    color: #000;
    font-size: 46px;
    line-height: 1.14;
    font-weight: 800;
    letter-spacing: -1px;
}

.article-date {
    margin: 0 0 24px 24px;
    color: #000;
    font-size: 18px;
    text-decoration: underline;
}

.article-image {
    margin: 0 0 18px;
}

.article-image img {
    display: block;
    width: 100%;
    height: auto;
}

.article-image figcaption {
    margin-top: 14px;
    color: #666;
    font-size: 16px;
    line-height: 1.4;
}

.article-content {
    max-width: 700px;
}

.article-content p {
    margin: 0 0 24px;
    color: #000;
    font-size: 19px;
    line-height: 1.48;
    font-weight: 500;
}

.article-content .link {
    font-size: 21px;
}

.article-content strong {
    font-weight: 800;
}

.article-content h2 {
    margin: 42px 0 20px;
    color: #000;
    font-size: 30px;
    line-height: 1.18;
    font-weight: 800;
}

.cta-wrap {
    display: flex;
    justify-content: center;
    margin: 44px 0;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    max-width: 350px;
    padding: 12px 20px;
    background: #f28a00;
    color: #000;
    font-size: 16px;
    line-height: 1.25;
    font-weight: 700;
    text-align: center;
    text-decoration: none;
}

.article-content h3 {
    margin: 30px 0 10px;
    color: #000;
    font-size: 20px;
    line-height: 1.35;
    font-weight: 800;
}

.related-box {
    margin: 34px 0;
    padding: 18px 20px;
    background: #c96f00;
    border-left: 4px solid #f28a00;
}

.related-box p {
    margin: 0 0 8px;
    color: #666363;
    font-size: 14px;
}

.related-box a {
    color: #000;
    text-decoration: none;
}

.legal-note {
    margin-top: 70px;
    padding-top: 30px;
    border-top: 1px solid #333;
}

.legal-note p,
.legal-note h3 {
    color: #666363;
    font-size: 13px;
    line-height: 1.55;
    font-weight: 400;
}

.legal-note h3 {
    margin: 28px 0 12px;
    font-weight: 700;
}

@media(max-width: 767px) {
    .article-section {
        padding: 28px 0 60px;
    }

    .article-inner {
        padding: 0 24px;
    }

    .article-inner h1 {
        font-size: 34px;
        line-height: 1.12;
        margin-bottom: 28px;
    }

    .article-date {
        font-size: 16px;
    }

    .article-content p {
        font-size: 17px;
        line-height: 1.5;
    }

    .article-content h2 {
        font-size: 26px;
    }

    .cta-btn {
        max-width: 100%;
    }

    .article-content h3 {
        margin: 24px 0 8px;
        font-size: 17px;
        line-height: 1.35;
    }

    .related-box {
        margin: 26px 0;
        padding: 14px 16px;
    }

    .related-box p {
        font-size: 12px;
        line-height: 1.4;
    }

    .related-box a {
        font-size: 15px;
        line-height: 1.35;
    }

    .legal-note {
        margin-top: 45px;
        padding-top: 22px;
    }

    .legal-note p,
    .legal-note h3 {
        font-size: 11px;
        line-height: 1.5;
    }

    .legal-note h3 {
        margin: 22px 0 10px;
    }
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 45px;
    padding-top: 28px;
    border-top: 1px solid #333;
}

.article-tags span {
    display: inline-flex;
    align-items: center;
    padding: 7px 12px;
    border: 1px solid #3d3d3d;
    border-radius: 999px;
    background: #1f1f1f;
    color: #666363;
    font-size: 12px;
    line-height: 1.3;
    font-weight: 600;
}

@media(max-width: 767px) {
    .article-tags {
        gap: 8px;
        margin-top: 34px;
        padding-top: 22px;
    }

    .article-tags span {
        padding: 6px 10px;
        font-size: 11px;
    }
}

.faq-section {
    margin: 48px 0;
}

.faq-section h2 {
    color: #111;
}

.faq-item {
    margin-bottom: 4px;
    background: #fafafa;
}

.faq-item summary {
    position: relative;
    list-style: none;
    cursor: pointer;
    padding: 8px 14px 8px 28px;
    color: #111;
    font-size: 16px;
    line-height: 1.35;
    font-weight: 800;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::before {
    content: "";
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 7px solid #f28a00;
}

.faq-item[open] summary::before {
    transform: translateY(-50%) rotate(90deg);
}

.faq-item p {
    margin: 0;
    padding: 0 14px 14px 28px;
    color: #333;
    font-size: 15px;
    line-height: 1.5;
}

@media(max-width: 767px) {
    .faq-item summary {
        font-size: 14px;
        padding: 8px 12px 8px 26px;
    }

    .faq-item p {
        font-size: 13px;
        padding: 0 12px 12px 26px;
    }
}

.site-footer {
    background: #fff;
    padding: 56px 20px 34px;
    color: #d6d6d6;
}

.footer-inner {
    max-width: 920px;
    margin: 0 auto;
}

.footer-head {
    padding-bottom: 28px;
    border-bottom: 1px solid #3a3a3a;
}

.footer-head h2 {
    margin: 0 0 10px;
    color: #000;
    font-size: 28px;
    line-height: 1.2;
    font-weight: 800;
}

.footer-head p {
    margin: 0;
    color: #000;
    font-size: 15px;
    line-height: 1.5;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 70px;
    padding: 34px 0;
    border-bottom: 1px solid #3a3a3a;
}

.footer-grid h3 {
    margin: 0 0 16px;
    color: #000;
    font-size: 16px;
    line-height: 1.3;
    font-weight: 800;
}

.footer-grid p {
    margin: 0 0 14px;
    color: #000;
    font-size: 14px;
    line-height: 1.6;
    font-weight: 500;
}

.footer-grid a {
    color: #000;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.footer-bottom {
    padding-top: 22px;
    color: #999;
    font-size: 13px;
    line-height: 1.4;
}

@media(max-width: 767px) {
    .site-footer {
        padding: 40px 18px 28px;
    }

    .footer-head h2 {
        font-size: 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 28px 0;
    }

    .footer-grid p {
        font-size: 13px;
    }

    .footer-bottom {
        font-size: 12px;
    }
}