*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --canvas: #f7f7f4;
    --canvas-soft: #fafaf7;
    --surface-card: #ffffff;
    --surface-strong: #e6e5e0;
    --primary: #f54e00;
    --primary-active: #d04200;
    --ink: #26251e;
    --body: #5a5852;
    --body-strong: #26251e;
    --muted: #807d72;
    --muted-soft: #a09c92;
    --on-primary: #ffffff;
    --hairline: #e6e5e0;
    --hairline-soft: #efeee8;
    --hairline-strong: #cfcdc4;
    --semantic-success: #1f8a65;
    --semantic-error: #cf2d56;
    --rounded-xs: 4px;
    --rounded-sm: 6px;
    --rounded-md: 8px;
    --rounded-lg: 12px;
    --rounded-xl: 16px;
    --rounded-pill: 9999px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
    background-color: var(--canvas);
    color: var(--body);
    font-family: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--ink); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.site-header {
    background-color: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 64px;
    display: flex;
    align-items: center;
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 32px;
}

.site-logo { font-size: 18px; font-weight: 600; color: var(--ink); letter-spacing: -0.3px; flex-shrink: 0; }
.site-logo:hover { color: var(--primary); }

.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a { font-size: 14px; font-weight: 500; color: var(--body); line-height: 1.4; }
.main-nav a:hover { color: var(--ink); }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background-color: var(--ink); border-radius: 2px; }

.hero-band {
    background-color: var(--canvas);
    padding: 80px 0;
    border-bottom: 1px solid var(--hairline);
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.hero-label {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    background-color: var(--surface-strong);
    border-radius: var(--rounded-pill);
    padding: 4px 10px;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 48px;
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -1.2px;
    color: var(--ink);
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 16px;
    line-height: 1.6;
    color: var(--body);
    max-width: 480px;
    margin-bottom: 8px;
}

.hero-meta { font-size: 13px; color: var(--muted); margin-top: 12px; }

.hero-image { border-radius: var(--rounded-lg); overflow: hidden; border: 1px solid var(--hairline); }
.hero-image img { width: 100%; height: 360px; object-fit: cover; }

.section { padding: 80px 0; }

.section-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 12px;
}

.section-title {
    font-size: 36px;
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.72px;
    color: var(--ink);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 16px;
    line-height: 1.6;
    color: var(--body);
    max-width: 600px;
    margin-bottom: 48px;
}

.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.cards-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }

.feature-card {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    padding: 24px;
}

.feature-card-label { font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.feature-card-title { font-size: 18px; font-weight: 600; color: var(--ink); line-height: 1.4; margin-bottom: 12px; }
.feature-card-desc { font-size: 14px; color: var(--body); line-height: 1.6; }

.article-card {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.article-card-image img { width: 100%; height: 220px; object-fit: cover; }
.article-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.article-card-category { font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.article-card-title { font-size: 20px; font-weight: 400; letter-spacing: -0.11px; color: var(--ink); line-height: 1.3; margin-bottom: 12px; }
.article-card-excerpt { font-size: 14px; color: var(--body); line-height: 1.6; margin-bottom: 20px; flex: 1; }
.article-card-meta { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 12px; }
.article-card-read { font-size: 14px; font-weight: 500; color: var(--primary); }
.article-card-read:hover { color: var(--primary-active); }

.info-band {
    background-color: var(--surface-card);
    border-top: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
    padding: 80px 0;
}

.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.info-image { border-radius: var(--rounded-lg); overflow: hidden; border: 1px solid var(--hairline); }
.info-image img { width: 100%; height: 400px; object-fit: cover; }

.info-content .section-title { margin-bottom: 20px; }
.info-content p { font-size: 16px; line-height: 1.6; color: var(--body); margin-bottom: 16px; }

.info-list { margin-top: 20px; display: flex; flex-direction: column; gap: 12px; }
.info-list-item { display: flex; gap: 12px; align-items: flex-start; }
.info-list-dot { width: 6px; height: 6px; background-color: var(--primary); border-radius: 50%; margin-top: 8px; flex-shrink: 0; }
.info-list-text { font-size: 15px; color: var(--body); line-height: 1.5; }

.contact-band { background-color: var(--canvas); padding: 80px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }

.contact-info h2 { font-size: 26px; font-weight: 400; letter-spacing: -0.325px; color: var(--ink); margin-bottom: 16px; }
.contact-info p { font-size: 16px; color: var(--body); line-height: 1.6; margin-bottom: 24px; }

.contact-details { display: flex; flex-direction: column; gap: 12px; }
.contact-detail { display: flex; flex-direction: column; gap: 2px; }
.contact-detail-label { font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); }
.contact-detail-value { font-size: 15px; color: var(--body-strong); }

.contact-form { background-color: var(--surface-card); border: 1px solid var(--hairline); border-radius: var(--rounded-lg); padding: 32px; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 500; color: var(--ink); margin-bottom: 6px; }
.form-group input,
.form-group textarea {
    width: 100%;
    background-color: var(--surface-card);
    border: 1px solid var(--hairline-strong);
    border-radius: var(--rounded-md);
    padding: 12px 16px;
    font-size: 16px;
    font-family: inherit;
    color: var(--ink);
    transition: border-color 0.15s;
    height: 44px;
}
.form-group textarea { height: 120px; resize: vertical; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--ink); }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--muted-soft); }

.btn-primary {
    background-color: var(--primary);
    color: var(--on-primary);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 18px;
    height: 40px;
    border-radius: var(--rounded-md);
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: background-color 0.15s;
    display: inline-flex;
    align-items: center;
}
.btn-primary:hover { background-color: var(--primary-active); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.form-message { display: none; margin-top: 16px; padding: 12px 16px; border-radius: var(--rounded-md); font-size: 14px; line-height: 1.4; }
.form-message.success { background-color: #d4f0e5; color: var(--semantic-success); display: block; }
.form-message.error { background-color: #fde8ed; color: var(--semantic-error); display: block; }

.article-page { max-width: 780px; margin: 0 auto; padding: 60px 24px; }
.article-page-label { font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.article-page-title { font-size: 42px; font-weight: 400; line-height: 1.15; letter-spacing: -1px; color: var(--ink); margin-bottom: 16px; }
.article-page-meta { font-size: 13px; color: var(--muted); margin-bottom: 32px; padding-bottom: 32px; border-bottom: 1px solid var(--hairline); }
.article-page-image { border-radius: var(--rounded-lg); overflow: hidden; border: 1px solid var(--hairline); margin-bottom: 40px; }
.article-page-image img { width: 100%; max-height: 480px; object-fit: cover; }
.article-page-image figcaption { padding: 10px 16px; font-size: 13px; color: var(--muted); background-color: var(--canvas-soft); border-top: 1px solid var(--hairline-soft); }

.article-body h2 { font-size: 26px; font-weight: 400; letter-spacing: -0.325px; color: var(--ink); margin-top: 48px; margin-bottom: 16px; }
.article-body h3 { font-size: 20px; font-weight: 600; color: var(--ink); margin-top: 32px; margin-bottom: 12px; }
.article-body p { font-size: 16px; line-height: 1.7; color: var(--body); margin-bottom: 20px; }
.article-body ul, .article-body ol { padding-left: 24px; margin-bottom: 20px; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { font-size: 16px; line-height: 1.7; color: var(--body); margin-bottom: 6px; }
.article-body a { color: var(--primary); border-bottom: 1px solid var(--hairline-strong); }
.article-body a:hover { color: var(--primary-active); border-color: var(--primary-active); }

.article-info-box {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--primary);
    border-radius: var(--rounded-md);
    padding: 20px 24px;
    margin: 32px 0;
    font-size: 15px;
    color: var(--body);
    line-height: 1.6;
}

.article-table { width: 100%; border-collapse: collapse; margin: 32px 0; font-size: 14px; }
.article-table th { background-color: var(--surface-strong); color: var(--ink); font-weight: 600; text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--hairline-strong); }
.article-table td { padding: 12px 16px; color: var(--body); border-bottom: 1px solid var(--hairline-soft); }
.article-table tr:last-child td { border-bottom: none; }

.article-related { margin-top: 60px; padding-top: 40px; border-top: 1px solid var(--hairline); }
.article-related h2 { font-size: 22px; font-weight: 400; color: var(--ink); margin-bottom: 24px; }
.related-list { display: flex; flex-direction: column; gap: 12px; }
.related-item {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--rounded-md);
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    transition: border-color 0.15s;
}
.related-item:hover { border-color: var(--hairline-strong); }
.related-item-title { font-size: 15px; font-weight: 500; color: var(--ink); }
.related-item-arrow { font-size: 14px; color: var(--primary); flex-shrink: 0; }

.page-content { max-width: 780px; margin: 0 auto; padding: 60px 24px; }
.page-content h1 { font-size: 36px; font-weight: 400; letter-spacing: -0.72px; color: var(--ink); margin-bottom: 8px; }
.page-content .page-updated { font-size: 13px; color: var(--muted); margin-bottom: 40px; padding-bottom: 32px; border-bottom: 1px solid var(--hairline); }
.page-content h2 { font-size: 24px; font-weight: 400; color: var(--ink); margin-top: 40px; margin-bottom: 16px; }
.page-content p { font-size: 16px; line-height: 1.7; color: var(--body); margin-bottom: 20px; }
.page-content ul { padding-left: 24px; list-style: disc; margin-bottom: 20px; }
.page-content li { font-size: 16px; line-height: 1.7; color: var(--body); margin-bottom: 6px; }
.page-content a { color: var(--primary); }

.site-footer { background-color: var(--canvas); border-top: 1px solid var(--hairline); padding: 64px 0 48px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand { font-size: 16px; font-weight: 600; color: var(--ink); display: block; margin-bottom: 12px; }
.footer-desc { font-size: 14px; color: var(--body); line-height: 1.6; }
.footer-heading { font-size: 11px; font-weight: 600; letter-spacing: 0.88px; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col ul li, .footer-col ul a { font-size: 14px; color: var(--body); line-height: 1.5; }
.footer-col ul a:hover { color: var(--ink); }
.footer-bottom { border-top: 1px solid var(--hairline); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.footer-bottom p { font-size: 14px; color: var(--muted); }

.cookie-banner { position: fixed; bottom: 0; left: 0; right: 0; background-color: var(--ink); color: var(--canvas); padding: 20px 24px; z-index: 999; display: none; }
.cookie-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cookie-text { font-size: 14px; line-height: 1.5; color: #c9c7c0; }
.cookie-text a { color: var(--canvas); border-bottom: 1px solid rgba(247,247,244,0.3); }
.cookie-actions { display: flex; gap: 12px; flex-shrink: 0; }
.cookie-btn { font-size: 13px; font-weight: 500; padding: 8px 16px; border-radius: var(--rounded-md); border: none; cursor: pointer; font-family: inherit; transition: opacity 0.15s; }
.cookie-btn:hover { opacity: 0.85; }
.cookie-btn-accept { background-color: var(--primary); color: var(--on-primary); }
.cookie-btn-reject { background-color: transparent; color: var(--canvas); border: 1px solid rgba(247,247,244,0.3); }

.breadcrumb { padding: 16px 0; border-bottom: 1px solid var(--hairline-soft); }
.breadcrumb-list { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.breadcrumb-list li { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.breadcrumb-list li:not(:last-child)::after { content: '/'; color: var(--muted-soft); }
.breadcrumb-list a { color: var(--muted); }
.breadcrumb-list a:hover { color: var(--ink); }
.breadcrumb-list li:last-child { color: var(--body-strong); }

@media (max-width: 1024px) {
    .hero-title { font-size: 38px; }
    .cards-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .main-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background-color: var(--canvas);
        border-bottom: 1px solid var(--hairline);
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 24px;
        gap: 16px;
    }
    .main-nav.open { display: flex; }
    .hero-inner { grid-template-columns: 1fr; gap: 32px; }
    .hero-title { font-size: 32px; letter-spacing: -0.8px; }
    .section { padding: 48px 0; }
    .cards-grid { grid-template-columns: 1fr; }
    .cards-grid-2 { grid-template-columns: 1fr; }
    .info-grid { grid-template-columns: 1fr; gap: 32px; }
    .contact-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }
    .article-page-title { font-size: 30px; }
    .section-title { font-size: 26px; }
    .cookie-inner { flex-direction: column; align-items: flex-start; }
    .hero-band { padding: 48px 0; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 26px; }
    .container { padding: 0 16px; }
}