@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400&display=swap');

*, *::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;
    --on-primary:    #ffffff;
    --ink:           #26251e;
    --body:          #5a5852;
    --body-strong:   #26251e;
    --muted:         #807d72;
    --muted-soft:    #a09c92;
    --hairline:      #e6e5e0;
    --hairline-soft: #efeee8;
    --hairline-strong:#cfcdc4;
    --success:       #1f8a65;
    --error:         #cf2d56;
    --r-xs: 4px;
    --r-sm: 6px;
    --r-md: 8px;
    --r-lg: 12px;
    --r-xl: 16px;
    --r-pill: 9999px;
}

html { scroll-behavior: smooth; }

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

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

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.nav-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.2px;
    flex-shrink: 0;
}
.nav-logo span { color: var(--primary); }

.nav-links {
    display: flex;
    list-style: none;
    gap: 4px;
    align-items: center;
}
.nav-links a {
    font-size: 14px;
    font-weight: 500;
    color: var(--body);
    padding: 6px 10px;
    border-radius: var(--r-sm);
    transition: color 0.15s, background 0.15s;
}
.nav-links a:hover,
.nav-links a.active {
    color: var(--ink);
    background: var(--surface-strong);
}

.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 16px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}
.nav-hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--ink);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

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

.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(--r-pill);
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -1.5px;
    color: var(--ink);
    max-width: 720px;
    margin-bottom: 20px;
}

.hero-sub {
    font-size: 18px;
    line-height: 1.5;
    color: var(--body);
    max-width: 560px;
    margin-bottom: 32px;
}

.hero-image {
    margin-top: 48px;
    border-radius: var(--r-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
    max-height: 480px;
}
.hero-image img {
    width: 100%;
    height: 480px;
    object-fit: cover;
}

.section {
    padding: 80px 0;
    border-bottom: 1px solid var(--hairline-soft);
}

.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;
    line-height: 1.2;
    letter-spacing: -0.72px;
    color: var(--ink);
    margin-bottom: 16px;
}

.section-sub {
    font-size: 16px;
    color: var(--body);
    max-width: 640px;
    margin-bottom: 48px;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.article-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--r-lg);
    overflow: hidden;
    transition: border-color 0.15s;
}
.article-card:hover { border-color: var(--hairline-strong); }

.article-card-img {
    height: 200px;
    overflow: hidden;
}
.article-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}
.article-card:hover .article-card-img img { transform: scale(1.03); }

.article-card-body {
    padding: 24px;
}

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

.article-card h3 {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--ink);
    margin-bottom: 10px;
}

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

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.info-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--r-lg);
    padding: 24px;
}
.info-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 12px;
}
.info-card p, .info-card li {
    font-size: 15px;
    color: var(--body);
    line-height: 1.6;
}
.info-card ul { padding-left: 18px; }
.info-card li { margin-bottom: 6px; }

.article-hero {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline);
}
.article-hero .breadcrumb {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 16px;
}
.article-hero .breadcrumb a { color: var(--muted); }
.article-hero .breadcrumb a:hover { color: var(--primary); }
.article-hero h1 {
    font-size: 42px;
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.8px;
    color: var(--ink);
    max-width: 760px;
    margin-bottom: 16px;
}
.article-hero .article-meta {
    font-size: 13px;
    color: var(--muted);
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.article-layout {
    padding: 48px 0 80px;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 48px;
    align-items: start;
}

.article-body h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.3px;
    color: var(--ink);
    margin: 40px 0 14px;
    line-height: 1.25;
}
.article-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    margin: 28px 0 10px;
}
.article-body p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--body);
    margin-bottom: 18px;
}
.article-body ul, .article-body ol {
    padding-left: 22px;
    margin-bottom: 18px;
}
.article-body li {
    font-size: 16px;
    line-height: 1.7;
    color: var(--body);
    margin-bottom: 8px;
}
.article-body figure {
    margin: 32px 0;
    border-radius: var(--r-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
}
.article-body figure img {
    width: 100%;
    height: 360px;
    object-fit: cover;
}
.article-body figcaption {
    padding: 10px 16px;
    font-size: 13px;
    color: var(--muted);
    background: var(--canvas-soft);
}

.article-sidebar {
    position: sticky;
    top: 80px;
}
.sidebar-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--r-lg);
    padding: 24px;
    margin-bottom: 20px;
}
.sidebar-card h4 {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 14px;
}
.sidebar-card ul { list-style: none; padding: 0; }
.sidebar-card li { border-bottom: 1px solid var(--hairline-soft); }
.sidebar-card li:last-child { border-bottom: none; }
.sidebar-card li a {
    display: block;
    padding: 10px 0;
    font-size: 14px;
    color: var(--body);
    line-height: 1.4;
}
.sidebar-card li a:hover { color: var(--primary); }

.highlight-box {
    background: var(--canvas-soft);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--primary);
    border-radius: var(--r-md);
    padding: 20px 24px;
    margin: 28px 0;
}
.highlight-box p {
    font-size: 15px;
    color: var(--body-strong);
    margin: 0;
}

.page-hero {
    padding: 64px 0 48px;
    border-bottom: 1px solid var(--hairline);
}
.page-hero h1 {
    font-size: 42px;
    font-weight: 400;
    letter-spacing: -0.8px;
    color: var(--ink);
    margin-bottom: 12px;
}
.page-hero p {
    font-size: 18px;
    color: var(--body);
}

.page-content {
    padding: 48px 0 80px;
    max-width: 760px;
}
.page-content h2 {
    font-size: 26px;
    font-weight: 400;
    letter-spacing: -0.3px;
    color: var(--ink);
    margin: 36px 0 12px;
}
.page-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
    margin: 24px 0 8px;
}
.page-content p {
    font-size: 16px;
    line-height: 1.7;
    color: var(--body);
    margin-bottom: 16px;
}
.page-content ul, .page-content ol {
    padding-left: 22px;
    margin-bottom: 16px;
}
.page-content li {
    font-size: 16px;
    line-height: 1.7;
    color: var(--body);
    margin-bottom: 6px;
}

.contact-form {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--r-lg);
    padding: 32px;
    max-width: 560px;
}
.contact-form h2 {
    font-size: 22px;
    font-weight: 400;
    letter-spacing: -0.1px;
    color: var(--ink);
    margin-bottom: 24px;
}
.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(--r-md);
    padding: 12px 16px;
    font-size: 15px;
    font-family: inherit;
    color: var(--ink);
    line-height: 1.5;
    transition: border-color 0.15s;
    outline: none;
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--ink);
}
.form-group textarea { resize: vertical; min-height: 100px; }

.btn-primary {
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: var(--r-md);
    padding: 10px 20px;
    height: 40px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-primary:hover { background: var(--primary-active); color: var(--on-primary); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.form-message {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: var(--r-md);
    font-size: 14px;
    display: none;
}
.form-message.success {
    background: #d4edda;
    color: var(--success);
    border: 1px solid #b8dfc8;
    display: block;
}
.form-message.error {
    background: #fde8ec;
    color: var(--error);
    border: 1px solid #f5c6ce;
    display: block;
}

.cookie-banner {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 48px);
    max-width: 640px;
    background: var(--ink);
    color: var(--canvas);
    border-radius: var(--r-lg);
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    z-index: 1000;
    box-shadow: 0 4px 24px rgba(38,37,30,0.18);
}
.cookie-banner.hidden { display: none; }
.cookie-text {
    font-size: 14px;
    line-height: 1.5;
    flex: 1;
}
.cookie-text a { color: var(--canvas-soft); text-decoration: underline; }
.cookie-actions { display: flex; gap: 8px; flex-shrink: 0; }
.btn-cookie-accept {
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: var(--r-md);
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
}
.btn-cookie-accept:hover { background: var(--primary-active); }
.btn-cookie-reject {
    background: transparent;
    color: var(--canvas);
    border: 1px solid rgba(247,247,244,0.3);
    border-radius: var(--r-md);
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
}
.btn-cookie-reject:hover { background: rgba(247,247,244,0.08); }

.site-footer {
    background: 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-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 12px;
}
.footer-logo span { color: var(--primary); }
.footer-desc {
    font-size: 14px;
    color: var(--body);
    line-height: 1.6;
}
.footer-col h4 {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a {
    font-size: 14px;
    color: var(--body);
}
.footer-col a:hover { color: var(--primary); }
.footer-col address { font-style: normal; }
.footer-col address p {
    font-size: 14px;
    color: var(--body);
    margin-bottom: 6px;
}
.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 24px 0;
    border-top: 1px solid var(--hairline-soft);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.footer-bottom p {
    font-size: 13px;
    color: var(--muted);
}

@media (max-width: 1024px) {
    .article-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { position: static; }
}

@media (max-width: 768px) {
    .hero h1 { font-size: 36px; letter-spacing: -0.8px; }
    .section-title { font-size: 28px; }
    .article-hero h1 { font-size: 30px; }
    .page-hero h1 { font-size: 30px; }
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--canvas);
        flex-direction: column;
        padding: 12px 24px 20px;
        border-bottom: 1px solid var(--hairline);
        gap: 0;
    }
    .nav-links.open { display: flex; }
    .nav-links li { width: 100%; }
    .nav-links a { display: block; padding: 10px 0; border-radius: 0; border-bottom: 1px solid var(--hairline-soft); }
    .nav-hamburger { display: flex; }
    .site-nav { position: relative; }
    .article-grid { grid-template-columns: 1fr; }
    .info-grid { grid-template-columns: 1fr; }
    .footer-inner { grid-template-columns: 1fr; gap: 24px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .cookie-banner { flex-direction: column; align-items: flex-start; }
    .hero-image img { height: 260px; }
}

@media (max-width: 640px) {
    .hero { padding: 48px 0; }
    .section { padding: 48px 0; }
    .hero h1 { font-size: 28px; }
    .contact-form { padding: 20px; }
}