: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;
    --semantic-success: #1f8a65;
    --semantic-error: #cf2d56;
    --section: 80px;
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-pill: 9999px;
}

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

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

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

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

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

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

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.wordmark {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.3px;
}

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

.primary-nav ul {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--muted);
    line-height: 1.4;
    transition: color 0.15s;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

.hero-band {
    padding: var(--section) 0 calc(var(--section) * 0.75);
    border-bottom: 1px solid var(--hairline);
}

.hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    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: var(--surface-strong);
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    margin-bottom: 24px;
}

.hero-h1 {
    font-size: 52px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 20px;
}

.hero-sub {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    margin-bottom: 32px;
    max-width: 480px;
}

.hero-img-wrap {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
    aspect-ratio: 4/3;
}

.hero-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.section-band {
    padding: var(--section) 0;
}

.section-band + .section-band { border-top: 1px solid var(--hairline); }

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

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

.section-sub {
    font-size: 16px;
    color: var(--body);
    line-height: 1.6;
    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: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.feature-card-img {
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 20px;
    aspect-ratio: 16/9;
}

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

.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: 10px;
}

.feature-card-body {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 16px;
}

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

.feature-card-link:hover { color: var(--primary-active); }

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

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

.article-h1 {
    font-size: 42px;
    font-weight: 400;
    color: var(--ink);
    line-height: 1.15;
    letter-spacing: -1px;
    margin-bottom: 16px;
    max-width: 800px;
}

.article-lede {
    font-size: 18px;
    color: var(--body);
    line-height: 1.6;
    max-width: 720px;
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 64px;
    padding: 48px 0 var(--section);
    align-items: start;
}

.article-body h2 {
    font-size: 26px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.325px;
    line-height: 1.25;
    margin: 40px 0 16px;
}

.article-body h3 {
    font-size: 20px;
    font-weight: 500;
    color: var(--ink);
    line-height: 1.3;
    margin: 28px 0 12px;
}

.article-body p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.7;
    margin-bottom: 20px;
}

.article-body ul, .article-body ol {
    margin: 0 0 20px 20px;
    font-size: 16px;
    color: var(--body);
    line-height: 1.7;
}

.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }

.article-body li { margin-bottom: 6px; }

.article-body a {
    color: var(--primary);
    text-decoration: underline;
    text-decoration-color: rgba(245,78,0,0.3);
}

.article-body a:hover { text-decoration-color: var(--primary); }

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

.article-figure {
    margin: 32px 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
}

.article-figure img {
    width: 100%;
    height: 320px;
    object-fit: cover;
}

.article-figure figcaption {
    padding: 10px 16px;
    font-size: 13px;
    color: var(--muted);
    background: var(--canvas-soft);
    border-top: 1px solid var(--hairline);
}

.info-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    margin: 28px 0;
}

.info-box-title {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 10px;
}

.article-sidebar { position: sticky; top: 84px; }

.sidebar-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 16px;
}

.sidebar-card-title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--muted);
    margin-bottom: 14px;
}

.sidebar-card ul li {
    padding: 6px 0;
    border-bottom: 1px solid var(--hairline-soft);
    font-size: 14px;
}

.sidebar-card ul li:last-child { border-bottom: none; }

.sidebar-card ul li a { color: var(--body); }
.sidebar-card ul li a:hover { color: var(--ink); }

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

.page-h1 {
    font-size: 42px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -1px;
    line-height: 1.15;
    margin-bottom: 12px;
}

.page-sub {
    font-size: 16px;
    color: var(--body);
    max-width: 600px;
}

.page-content {
    padding: 48px 0 var(--section);
    max-width: 780px;
}

.page-content h2 {
    font-size: 26px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.325px;
    margin: 36px 0 14px;
}

.page-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin: 24px 0 10px;
}

.page-content p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.7;
    margin-bottom: 18px;
}

.page-content ul, .page-content ol {
    margin: 0 0 18px 20px;
    font-size: 16px;
    color: var(--body);
    line-height: 1.7;
}

.page-content ul { list-style: disc; }
.page-content ol { list-style: decimal; }
.page-content li { margin-bottom: 6px; }

.page-content a { color: var(--primary); text-decoration: underline; }

.btn-primary {
    display: inline-flex;
    align-items: center;
    background: var(--primary);
    color: var(--on-primary);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 18px;
    height: 40px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: background 0.15s;
    text-decoration: none;
}

.btn-primary:hover { background: var(--primary-active); color: var(--on-primary); }

.btn-secondary {
    display: inline-flex;
    align-items: center;
    background: var(--surface-card);
    color: var(--ink);
    font-size: 14px;
    font-weight: 500;
    padding: 10px 18px;
    height: 40px;
    border-radius: var(--radius-md);
    border: 1px solid var(--hairline-strong);
    cursor: pointer;
    transition: background 0.15s;
    text-decoration: none;
}

.btn-secondary:hover { background: var(--canvas-soft); }

.contact-form-wrap {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 32px;
    max-width: 560px;
}

.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: var(--surface-card);
    border: 1px solid var(--hairline-strong);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    height: 44px;
    font-size: 16px;
    color: var(--ink);
    font-family: inherit;
    outline: none;
    transition: border-color 0.15s;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--ink);
}

.form-group textarea {
    height: auto;
    min-height: 100px;
    resize: vertical;
}

.form-msg {
    display: none;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 14px;
    margin-top: 16px;
}

.form-msg.success {
    background: #e6f4ef;
    color: var(--semantic-success);
    border: 1px solid #b8ddd0;
    display: block;
}

.form-msg.loading {
    background: var(--canvas-soft);
    color: var(--muted);
    border: 1px solid var(--hairline);
    display: block;
}

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

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 48px;
}

.footer-brand {
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    display: block;
    margin-bottom: 10px;
}

.footer-tagline {
    font-size: 14px;
    color: var(--muted);
    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: 14px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 8px; }

.footer-link {
    font-size: 14px;
    color: var(--body);
    transition: color 0.15s;
}

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

.footer-disclaimer {
    font-size: 12px;
    color: var(--muted-soft);
    line-height: 1.6;
    margin-top: 14px;
}

.footer-bottom {
    border-top: 1px solid var(--hairline);
    padding: 20px 0;
    font-size: 13px;
    color: var(--muted);
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--ink);
    color: var(--canvas);
    z-index: 999;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.cookie-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
}

.cookie-inner p {
    font-size: 14px;
    color: rgba(247,247,244,0.85);
    line-height: 1.5;
}

.cookie-inner p a { color: var(--primary); text-decoration: underline; }

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

.cookie-banner .btn-primary { background: var(--primary); }
.cookie-banner .btn-secondary {
    background: transparent;
    color: var(--canvas);
    border-color: rgba(247,247,244,0.3);
}

.breadcrumb {
    font-size: 13px;
    color: var(--muted);
    padding: 16px 0 0;
    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); }

.articles-index {
    padding: var(--section) 0;
}

.articles-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.article-row {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 0;
    background: var(--surface-card);
    transition: background 0.1s;
}

.article-row:hover { background: var(--canvas-soft); }
.article-row + .article-row { border-top: 1px solid var(--hairline); }

.article-row-img {
    width: 120px;
    height: 90px;
    object-fit: cover;
}

.article-row-body {
    padding: 16px 20px;
}

.article-row-meta {
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 4px;
}

.article-row-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 4px;
    line-height: 1.4;
}

.article-row-excerpt {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
}

@media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; gap: 40px; }
    .hero-h1 { font-size: 42px; }
    .article-layout { grid-template-columns: 1fr; gap: 40px; }
    .article-sidebar { position: static; }
    .cards-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .primary-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--canvas);
        border-bottom: 1px solid var(--hairline);
        padding: 16px 24px;
    }
    .primary-nav.open { display: block; }
    .primary-nav ul { flex-direction: column; gap: 16px; }
    .hero-h1 { font-size: 32px; letter-spacing: -0.5px; }
    .section-title { font-size: 26px; }
    .cards-grid { grid-template-columns: 1fr; }
    .cards-grid-2 { grid-template-columns: 1fr; }
    .article-h1 { font-size: 28px; }
    .page-h1 { font-size: 28px; }
    .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
    .article-row { grid-template-columns: 80px 1fr; }
    .article-row-img { width: 80px; height: 70px; }
}

@media (max-width: 480px) {
    .footer-inner { grid-template-columns: 1fr; }
    .cookie-inner { flex-direction: column; align-items: flex-start; }
}