: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;
    --success: #1f8a65;
    --error: #cf2d56;
    --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 {
    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;
}

a {
    color: var(--ink);
    text-decoration: none;
    transition: color 0.15s ease;
}

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

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

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

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

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

.nav-menu > li > a {
    font-size: 14px;
    font-weight: 500;
    color: var(--ink);
    line-height: 1.4;
}

.nav-menu > li > a:hover {
    color: var(--primary);
}

.nav-dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 8px 0;
    min-width: 240px;
    z-index: 200;
}

.dropdown-menu li a {
    display: block;
    padding: 10px 16px;
    font-size: 14px;
    color: var(--body);
}

.dropdown-menu li a:hover {
    color: var(--primary);
    background: var(--canvas-soft);
}

.nav-dropdown:hover .dropdown-menu {
    display: block;
}

.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: var(--ink);
    border-radius: 2px;
    transition: all 0.2s ease;
}

.site-hero {
    padding: 80px 0 64px;
    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);
    border-radius: var(--radius-pill);
    padding: 4px 10px;
    margin-bottom: 20px;
}

.hero-title {
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 400;
    color: var(--ink);
    line-height: 1.1;
    letter-spacing: -1.5px;
    max-width: 760px;
    margin-bottom: 20px;
}

.hero-sub {
    font-size: 18px;
    color: var(--body);
    max-width: 560px;
    line-height: 1.5;
    margin-bottom: 40px;
}

.hero-meta {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 40px;
}

.hero-image-wrap {
    margin-top: 48px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--hairline);
}

.hero-image-wrap img {
    width: 100%;
    height: 480px;
    object-fit: cover;
}

.section {
    padding: 80px 0;
}

.section + .section {
    border-top: 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: 12px;
}

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

.section-sub {
    font-size: 16px;
    color: var(--body);
    max-width: 600px;
    line-height: 1.5;
    margin-bottom: 48px;
}

.articles-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(--radius-lg);
    overflow: hidden;
    transition: border-color 0.15s ease;
}

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

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

.article-card-body {
    padding: 20px 24px 24px;
}

.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: 18px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.4;
    margin-bottom: 10px;
}

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

.article-card-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
}

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

.info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

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

.info-card-number {
    font-size: 36px;
    font-weight: 400;
    color: var(--primary);
    letter-spacing: -0.72px;
    margin-bottom: 8px;
}

.info-card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 8px;
}

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

.article-page {
    max-width: 760px;
    margin: 0 auto;
    padding: 64px 24px 80px;
}

.article-page-header {
    margin-bottom: 40px;
}

.article-breadcrumb {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 20px;
}

.article-breadcrumb a {
    color: var(--muted);
}

.article-breadcrumb a:hover {
    color: var(--primary);
}

.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: clamp(28px, 4vw, 46px);
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -1px;
    line-height: 1.15;
    margin-bottom: 16px;
}

.article-page-desc {
    font-size: 18px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 20px;
}

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

.article-hero-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    border: 1px solid var(--hairline);
    margin-bottom: 48px;
}

.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: 600;
    color: var(--ink);
    line-height: 1.35;
    margin: 28px 0 12px;
}

.article-body p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.65;
    margin-bottom: 20px;
}

.article-body ul,
.article-body ol {
    margin: 0 0 20px 20px;
}

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

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

.article-body li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.65;
    margin-bottom: 6px;
}

.article-body a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

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

.article-info-box {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius-md);
    padding: 20px 24px;
    margin: 32px 0;
}

.article-info-box p {
    margin-bottom: 0;
    font-size: 15px;
}

.article-img-block {
    margin: 32px 0;
}

.article-img-block img {
    width: 100%;
    border-radius: var(--radius-lg);
    border: 1px solid var(--hairline);
}

.article-img-caption {
    font-size: 13px;
    color: var(--muted);
    margin-top: 8px;
    line-height: 1.4;
}

.article-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0 32px;
    font-size: 15px;
}

.article-table th {
    background: var(--surface-strong);
    color: var(--ink);
    font-weight: 600;
    text-align: left;
    padding: 10px 14px;
    border: 1px solid var(--hairline);
}

.article-table td {
    padding: 10px 14px;
    border: 1px solid var(--hairline);
    color: var(--body);
    background: var(--surface-card);
}

.article-related {
    margin-top: 64px;
    padding-top: 40px;
    border-top: 1px solid var(--hairline);
}

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

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

.related-card {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: border-color 0.15s ease;
}

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

.related-card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.4;
    margin-bottom: 6px;
}

.related-card-cat {
    font-size: 12px;
    color: var(--muted);
}

.contact-section {
    padding: 80px 0;
    background: var(--canvas);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-info h2 {
    font-size: 36px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.72px;
    line-height: 1.2;
    margin-bottom: 16px;
}

.contact-info p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.5;
    margin-bottom: 24px;
}

.contact-detail {
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 8px;
}

.contact-form {
    background: var(--surface-card);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-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: var(--surface-card);
    color: var(--ink);
    border: 1px solid var(--hairline-strong);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    height: 44px;
    font-size: 15px;
    font-family: inherit;
    transition: border-color 0.15s ease;
    outline: none;
}

.form-group textarea {
    height: 120px;
    resize: vertical;
}

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

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

.form-error-msg {
    font-size: 12px;
    color: var(--error);
    margin-top: 4px;
    display: none;
}

.btn-submit {
    width: 100%;
    background: var(--ink);
    color: var(--canvas);
    border: none;
    border-radius: var(--radius-md);
    padding: 12px 20px;
    height: 44px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s ease;
}

.btn-submit:hover {
    background: #3a3930;
}

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.form-status.success {
    background: #e8f5f0;
    color: var(--success);
    border: 1px solid #c0dfd5;
}

.page-content {
    max-width: 760px;
    margin: 0 auto;
    padding: 64px 24px 80px;
}

.page-title {
    font-size: 46px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -1px;
    line-height: 1.15;
    margin-bottom: 16px;
}

.page-meta {
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 40px;
}

.page-body h2 {
    font-size: 26px;
    font-weight: 400;
    color: var(--ink);
    letter-spacing: -0.325px;
    margin: 40px 0 14px;
}

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

.page-body p {
    font-size: 16px;
    color: var(--body);
    line-height: 1.65;
    margin-bottom: 18px;
}

.page-body ul,
.page-body ol {
    margin: 0 0 18px 20px;
}

.page-body ul {
    list-style: disc;
}

.page-body ol {
    list-style: decimal;
}

.page-body li {
    font-size: 16px;
    color: var(--body);
    line-height: 1.65;
    margin-bottom: 6px;
}

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

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

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

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

.footer-desc {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
    margin-top: 12px;
    max-width: 240px;
}

.footer-col h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 14px;
}

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col ul li a {
    font-size: 14px;
    color: var(--body);
    line-height: 1.5;
}

.footer-col ul li a:hover {
    color: var(--primary);
}

.footer-bottom {
    max-width: 1200px;
    margin: 48px auto 0;
    padding: 24px 24px 0;
    border-top: 1px solid var(--hairline);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

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

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--surface-card);
    border-top: 1px solid var(--hairline);
    z-index: 9999;
    padding: 16px 24px;
}

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

.cookie-inner p {
    font-size: 14px;
    color: var(--body);
}

.cookie-inner p a {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.cookie-buttons {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.btn-cookie-accept {
    background: var(--ink);
    color: var(--canvas);
    border: none;
    border-radius: var(--radius-md);
    padding: 10px 18px;
    height: 40px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
}

.btn-cookie-reject {
    background: var(--surface-card);
    color: var(--ink);
    border: 1px solid var(--hairline-strong);
    border-radius: var(--radius-md);
    padding: 10px 18px;
    height: 40px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
}

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

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.disclaimer-box {
    background: var(--surface-strong);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    font-size: 13px;
    color: var(--muted);
    line-height: 1.5;
    margin-top: 32px;
}

@media (max-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .two-col {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    .nav-menu {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--surface-card);
        border-bottom: 1px solid var(--hairline);
        flex-direction: column;
        align-items: flex-start;
        padding: 16px 24px;
        gap: 0;
    }
    .nav-menu.open {
        display: flex;
    }
    .nav-menu > li {
        width: 100%;
        border-bottom: 1px solid var(--hairline-soft);
    }
    .nav-menu > li > a {
        display: block;
        padding: 12px 0;
    }
    .dropdown-menu {
        position: static;
        display: block;
        border: none;
        border-radius: 0;
        padding: 0 0 8px 16px;
    }
    .dropdown-menu li a {
        padding: 8px 0;
    }
    .hero-title {
        font-size: 32px;
        letter-spacing: -0.8px;
    }
    .hero-image-wrap img {
        height: 240px;
    }
    .articles-grid {
        grid-template-columns: 1fr;
    }
    .info-grid {
        grid-template-columns: 1fr;
    }
    .related-grid {
        grid-template-columns: 1fr;
    }
    .footer-container {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }
    .section-title {
        font-size: 28px;
    }
    .article-page-title {
        font-size: 28px;
    }
    .page-title {
        font-size: 32px;
    }
    .cookie-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 16px;
    }
    .site-hero {
        padding: 48px 0 40px;
    }
    .section {
        padding: 48px 0;
    }
}