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

:root {
    --canvas: #f7f7f4;
    --canvas-soft: #fafaf7;
    --surface-card: #ffffff;
    --surface-strong: #e6e5e0;
    --hairline: #e6e5e0;
    --hairline-soft: #efeee8;
    --hairline-strong: #cfcdc4;
    --ink: #26251e;
    --body: #5a5852;
    --body-strong: #26251e;
    --muted: #807d72;
    --muted-soft: #a09c92;
    --primary: #f54e00;
    --primary-active: #d04200;
    --on-primary: #ffffff;
    --success: #1f8a65;
    --error: #cf2d56;
    --font-sans: 'Inter', system-ui, 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

html { scroll-behavior: smooth; }

body {
    background-color: var(--canvas);
    color: var(--body);
    font-family: var(--font-sans);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
}

a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--primary); }

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

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

.site-nav {
    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 {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    height: 100%;
}

.nav-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.11px;
    line-height: 1.4;
}

.nav-logo span { color: var(--primary); }

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
    padding: 6px 12px;
    border-radius: 6px;
    transition: color 0.15s, background-color 0.15s;
}

.nav-link:hover, .nav-link.active {
    color: var(--ink);
    background-color: var(--surface-strong);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--ink);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

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

.hero-band .container {
    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);
    padding: 4px 10px;
    border-radius: 9999px;
    margin-bottom: 20px;
}

.hero-title {
    font-size: 48px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -1.5px;
    color: var(--ink);
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 16px;
    line-height: 1.5;
    color: var(--body);
    max-width: 480px;
    margin-bottom: 32px;
}

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

.hero-img {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--hairline);
}

.hero-img 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;
    letter-spacing: -0.72px;
    color: var(--ink);
    margin-bottom: 16px;
}

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

.section-divider {
    border: none;
    border-top: 1px solid var(--hairline);
}

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

.card {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color 0.15s;
}

.card:hover { border-color: var(--hairline-strong); }

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-category {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 10px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.4;
    margin-bottom: 12px;
}

.card-excerpt {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    flex: 1;
    margin-bottom: 20px;
}

.card-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.card-link::after { content: ' →'; }

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

.info-card {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 24px;
}

.info-card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 10px;
}

.info-card-text {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
}

.site-footer {
    background-color: var(--canvas);
    border-top: 1px solid var(--hairline);
    padding: 64px 0 48px;
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 12px;
}

.footer-brand span { color: var(--primary); }

.footer-tagline {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
}

.footer-heading {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 14px;
    color: var(--body);
    line-height: 1.4;
}

.footer-links a:hover { color: var(--ink); }

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 24px 0;
    border-top: 1px solid var(--hairline);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p, .footer-bottom-links {
    font-size: 13px;
    color: var(--muted);
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
}

.footer-bottom-links a {
    color: var(--muted);
    font-size: 13px;
}

.footer-bottom-links a:hover { color: var(--ink); }

.article-header {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline);
}

.article-meta {
    font-size: 13px;
    color: var(--muted);
    margin-top: 16px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.article-title {
    font-size: 40px;
    font-weight: 400;
    letter-spacing: -1px;
    color: var(--ink);
    line-height: 1.15;
    max-width: 760px;
}

.article-desc {
    font-size: 18px;
    color: var(--body);
    line-height: 1.5;
    max-width: 680px;
    margin-top: 16px;
}

.article-body {
    padding: 64px 0;
}

.article-content {
    max-width: 760px;
}

.article-content h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.325px;
    color: var(--ink);
    margin: 48px 0 16px;
    line-height: 1.25;
}

.article-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    margin: 32px 0 12px;
    line-height: 1.4;
}

.article-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 20px;
    letter-spacing: 0.08px;
}

.article-content ul, .article-content ol {
    padding-left: 24px;
    margin-bottom: 20px;
}

.article-content li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 8px;
}

.article-content strong { color: var(--ink); font-weight: 600; }

.article-img-block {
    margin: 40px 0;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--hairline);
}

.article-img-block img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.article-img-caption {
    padding: 12px 16px;
    font-size: 13px;
    color: var(--muted);
    background-color: var(--canvas-soft);
    font-style: italic;
}

.callout {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--primary);
    border-radius: 0 8px 8px 0;
    padding: 20px 24px;
    margin: 32px 0;
}

.callout p {
    margin: 0;
    font-size: 15px;
    color: var(--body-strong);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 32px 0;
    font-size: 14px;
}

.data-table th {
    background-color: var(--canvas-soft);
    color: var(--ink);
    font-weight: 600;
    font-size: 11px;
    letter-spacing: 0.88px;
    text-transform: uppercase;
    text-align: left;
    padding: 12px 16px;
    border-bottom: 1px solid var(--hairline-strong);
}

.data-table td {
    color: var(--body);
    padding: 12px 16px;
    border-bottom: 1px solid var(--hairline-soft);
    vertical-align: top;
}

.data-table tr:last-child td { border-bottom: none; }

.code-label {
    font-family: var(--font-mono);
    font-size: 13px;
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 4px;
    padding: 2px 6px;
    color: var(--ink);
}

.related-section {
    background-color: var(--canvas-soft);
    border-top: 1px solid var(--hairline);
    padding: 64px 0;
}

.page-content {
    max-width: 760px;
    padding: 64px 0;
}

.page-content h1 {
    font-size: 36px;
    font-weight: 400;
    letter-spacing: -0.72px;
    color: var(--ink);
    margin-bottom: 24px;
}

.page-content h2 {
    font-size: 22px;
    font-weight: 400;
    color: var(--ink);
    margin: 40px 0 14px;
    letter-spacing: -0.11px;
}

.page-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 18px;
}

.page-content ul {
    padding-left: 24px;
    margin-bottom: 18px;
}

.page-content li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 8px;
}

.page-meta {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 40px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--hairline);
}

.contact-form {
    background-color: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: 12px;
    padding: 40px;
    margin-top: 48px;
    max-width: 600px;
}

.form-title {
    font-size: 22px;
    font-weight: 400;
    color: var(--ink);
    margin-bottom: 24px;
    letter-spacing: -0.11px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    background-color: var(--surface-card);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 16px;
    border: 1px solid var(--hairline-strong);
    border-radius: 8px;
    padding: 12px 16px;
    height: 44px;
    outline: none;
    transition: border-color 0.15s;
}

.form-input:focus { border-color: var(--ink); }
.form-input.invalid { border-color: var(--error); }

.form-input::placeholder { color: var(--muted-soft); }

.btn-submit {
    background-color: var(--ink);
    color: var(--canvas);
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    border: none;
    border-radius: 8px;
    padding: 12px 20px;
    height: 44px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.15s;
}

.btn-submit:hover { background-color: var(--primary); }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; }

.form-status {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    display: none;
}

.form-status.success {
    background-color: #e8f5f0;
    color: var(--success);
    border: 1px solid var(--success);
    display: block;
}

.form-status.error {
    background-color: #fde8ed;
    color: var(--error);
    border: 1px solid var(--error);
    display: block;
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--surface-card);
    border-top: 1px solid var(--hairline);
    padding: 20px 24px;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    box-shadow: 0 -4px 16px rgba(38,37,30,0.06);
}

.cookie-text {
    font-size: 14px;
    color: var(--body);
    max-width: 680px;
}

.cookie-text a { color: var(--ink); text-decoration: underline; }

.cookie-actions {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
}

.btn-cookie-accept {
    background-color: var(--ink);
    color: var(--canvas);
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 500;
    border: none;
    border-radius: 8px;
    padding: 8px 16px;
    cursor: pointer;
    transition: background-color 0.15s;
}

.btn-cookie-accept:hover { background-color: var(--primary); }

.btn-cookie-reject {
    background-color: transparent;
    color: var(--body);
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 500;
    border: 1px solid var(--hairline-strong);
    border-radius: 8px;
    padding: 8px 16px;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s;
}

.btn-cookie-reject:hover { border-color: var(--ink); color: var(--ink); }

.breadcrumb {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 20px;
    display: flex;
    gap: 6px;
    align-items: center;
    flex-wrap: wrap;
}

.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb span { color: var(--muted-soft); }

.disclaimer {
    background-color: var(--canvas-soft);
    border: 1px solid var(--hairline);
    border-radius: 8px;
    padding: 16px 20px;
    font-size: 13px;
    color: var(--muted);
    margin: 32px 0;
    line-height: 1.5;
}

@media (max-width: 1024px) {
    .hero-band .container { grid-template-columns: 1fr; }
    .hero-title { font-size: 40px; }
    .hero-img { max-height: 300px; }
    .cards-grid { grid-template-columns: repeat(2, 1fr); }
    .info-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background-color: var(--canvas);
        border-bottom: 1px solid var(--hairline);
        flex-direction: column;
        padding: 16px 24px;
        gap: 4px;
    }
    .nav-links.open { display: flex; }
    .nav-link { padding: 10px 12px; }
    .site-nav { position: relative; }
    .hero-band { padding: 48px 0; }
    .hero-title { font-size: 32px; letter-spacing: -0.5px; }
    .hero-desc { font-size: 15px; }
    .section { padding: 48px 0; }
    .section-title { font-size: 28px; }
    .cards-grid { grid-template-columns: 1fr; }
    .info-grid { grid-template-columns: 1fr; }
    .article-title { font-size: 28px; }
    .article-content h2 { font-size: 22px; }
    .contact-form { padding: 24px; }
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .cookie-banner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
    .hero-title { font-size: 26px; }
    .article-img-block img { height: 240px; }
    .data-table { font-size: 13px; }
    .data-table th, .data-table td { padding: 10px 12px; }
}