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

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

html { scroll-behavior: smooth; }

body {
  background: var(--canvas);
  color: var(--body);
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

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

h1, h2, h3, h4 {
  color: var(--ink);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 { font-size: 2.5rem; letter-spacing: -0.05em; line-height: 1.1; }
h2 { font-size: 1.625rem; letter-spacing: -0.03em; }
h3 { font-size: 1.25rem; letter-spacing: -0.01em; line-height: 1.3; }
h4 { font-size: 1rem; font-weight: 600; letter-spacing: 0; }

p { margin-bottom: 1rem; color: var(--body); }

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

ul { list-style: none; }

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

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.site-logo {
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

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

.site-nav > ul > li { position: relative; }

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

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

.has-dropdown:hover .dropdown { display: block; }

.dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 12px);
  left: -16px;
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 8px;
  padding: 8px 0;
  min-width: 240px;
  z-index: 200;
}

.dropdown li a {
  display: block;
  padding: 8px 16px;
  font-size: 14px;
  color: var(--body);
  white-space: nowrap;
}

.dropdown li a:hover { background: var(--canvas); 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: var(--ink);
  border-radius: 2px;
  transition: all 0.2s;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: var(--on-primary);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  height: 40px;
  border-radius: 8px;
  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;
  justify-content: center;
  background: var(--surface-card);
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--hairline-strong);
  cursor: pointer;
  transition: border-color 0.15s;
  text-decoration: none;
}

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

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

.hero-label {
  display: inline-block;
  background: var(--surface-strong);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 9999px;
  margin-bottom: 24px;
}

.hero h1 { margin-bottom: 20px; max-width: 700px; }

.hero-desc {
  font-size: 16px;
  color: var(--body);
  max-width: 560px;
  margin-bottom: 40px;
  line-height: 1.5;
}

.hero-image {
  margin-top: 48px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--hairline);
  max-height: 480px;
}

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

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

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

.section-head { margin-bottom: 40px; }
.section-head h2 { margin-bottom: 12px; }
.section-head p { font-size: 16px; color: var(--body); max-width: 540px; }

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

.card {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
  transition: border-color 0.15s;
}

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

.card-image {
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 20px;
  aspect-ratio: 16/9;
}

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

.card-tag {
  display: inline-block;
  background: var(--surface-strong);
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.88px;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 9999px;
  margin-bottom: 12px;
}

.card h3 { margin-bottom: 10px; font-size: 1.1rem; }
.card p { font-size: 14px; color: var(--body); margin-bottom: 16px; }
.card-link { font-size: 14px; font-weight: 500; color: var(--ink); }
.card-link:hover { color: var(--primary); }

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

.article-row {
  display: grid;
  grid-template-columns: 1fr 140px;
  gap: 24px;
  align-items: center;
  padding: 24px 0;
  border-bottom: 1px solid var(--hairline-soft);
}

.article-row:hover .article-title { color: var(--primary); }

.article-meta { font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.article-title { font-size: 1.05rem; color: var(--ink); font-weight: 400; margin-bottom: 8px; }
.article-excerpt { font-size: 14px; color: var(--body); }
.article-img { border-radius: 8px; overflow: hidden; aspect-ratio: 3/2; }
.article-img img { width: 100%; height: 100%; object-fit: cover; }

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

.info-block {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 28px;
}

.info-block h3 { margin-bottom: 12px; font-size: 1.1rem; }
.info-block p, .info-block li { font-size: 14px; color: var(--body); line-height: 1.6; }
.info-block ul { padding-left: 0; }
.info-block ul li { padding: 4px 0; border-bottom: 1px solid var(--hairline-soft); }
.info-block ul li:last-child { border-bottom: none; }
.info-block ul li::before { content: "—"; margin-right: 8px; color: var(--muted); }

.contact-section { background: var(--canvas-soft); }

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

.contact-info h2 { margin-bottom: 16px; }
.contact-info p { font-size: 15px; color: var(--body); margin-bottom: 24px; }

.contact-detail { margin-bottom: 12px; font-size: 14px; color: var(--body); }
.contact-detail strong { color: var(--ink); }

.contact-form {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 32px;
}

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

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--surface-card);
  color: var(--ink);
  font-family: var(--font-base);
  font-size: 15px;
  padding: 12px 16px;
  height: 44px;
  border-radius: 8px;
  border: 1px solid var(--hairline-strong);
  outline: none;
  transition: border-color 0.15s;
}

.form-group textarea { height: auto; min-height: 100px; 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 { font-size: 12px; color: var(--error); margin-top: 4px; display: none; }
.form-error.show { display: block; }

.form-submit-msg {
  font-size: 14px;
  color: var(--success);
  padding: 12px 16px;
  background: #f0faf6;
  border-radius: 8px;
  border: 1px solid #b3e0cf;
  margin-top: 16px;
  display: none;
}

.form-submit-msg.show { display: block; }

.form-loading {
  display: none;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  margin-top: 12px;
}

.form-loading.show { display: flex; }

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--hairline-strong);
  border-top-color: var(--ink);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.article-page { padding: 60px 0 80px; }
.article-layout { display: grid; grid-template-columns: 1fr 300px; gap: 60px; align-items: start; }

.article-header { margin-bottom: 32px; }
.article-header h1 { font-size: 2rem; margin-bottom: 16px; }
.article-byline { font-size: 13px; color: var(--muted); margin-bottom: 24px; }

.article-hero-img {
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 32px;
  border: 1px solid var(--hairline);
}

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

.article-body h2 { font-size: 1.4rem; margin: 32px 0 14px; }
.article-body h3 { font-size: 1.15rem; margin: 24px 0 10px; }
.article-body p { font-size: 15px; color: var(--body); line-height: 1.7; margin-bottom: 16px; }
.article-body ul, .article-body ol { padding-left: 20px; margin-bottom: 16px; }
.article-body li { font-size: 15px; color: var(--body); line-height: 1.7; margin-bottom: 6px; }
.article-body ul li { list-style: disc; }
.article-body ol li { list-style: decimal; }
.article-body a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--hairline-strong); }
.article-body a:hover { color: var(--primary); text-decoration-color: var(--primary); }

.article-note {
  background: var(--canvas-soft);
  border-left: 3px solid var(--hairline-strong);
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
  margin: 24px 0;
  font-size: 14px;
  color: var(--body);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 24px 0;
  background: var(--surface-card);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--hairline);
}

.data-table th {
  background: var(--surface-strong);
  color: var(--ink);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 10px 16px;
  text-align: left;
}

.data-table td { padding: 10px 16px; border-bottom: 1px solid var(--hairline-soft); color: var(--body); }
.data-table tr:last-child td { border-bottom: none; }

.article-sidebar { position: sticky; top: 80px; }

.sidebar-widget {
  background: var(--surface-card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
}

.sidebar-widget h4 { font-size: 13px; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }

.sidebar-links li { padding: 6px 0; border-bottom: 1px solid var(--hairline-soft); }
.sidebar-links li:last-child { border-bottom: none; }
.sidebar-links a { font-size: 14px; color: var(--body); }
.sidebar-links a:hover { color: var(--ink); }

.page-content { padding: 60px 0 80px; max-width: 720px; }
.page-content h1 { margin-bottom: 24px; }
.page-content h2 { margin: 36px 0 14px; font-size: 1.3rem; }
.page-content p { font-size: 15px; color: var(--body); line-height: 1.7; margin-bottom: 16px; }
.page-content ul { padding-left: 20px; margin-bottom: 16px; }
.page-content ul li { list-style: disc; font-size: 15px; color: var(--body); line-height: 1.7; margin-bottom: 6px; }
.page-content .updated { font-size: 13px; color: var(--muted); margin-bottom: 32px; }

.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 28px; display: flex; align-items: center; gap: 8px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb span { color: var(--muted-soft); }

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

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 48px;
}

.footer-brand { display: block; font-size: 1rem; font-weight: 600; color: var(--ink); margin-bottom: 12px; }

.footer-col p { font-size: 14px; color: var(--body); line-height: 1.6; }

.footer-col h4 { font-size: 13px; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }

.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a { font-size: 14px; color: var(--body); }
.footer-col ul li a:hover { color: var(--ink); }

.footer-disclaimer { font-size: 12px; color: var(--muted-soft); margin-top: 12px; line-height: 1.5; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--hairline-soft);
  font-size: 13px;
  color: var(--muted);
}

.cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 24px;
  right: 24px;
  max-width: 560px;
  margin: 0 auto;
  background: var(--surface-card);
  border: 1px solid var(--hairline-strong);
  border-radius: 12px;
  padding: 20px 24px;
  z-index: 9999;
  box-shadow: 0 2px 12px rgba(38,37,30,0.08);
}

.cookie-inner p { font-size: 14px; color: var(--body); margin-bottom: 16px; }
.cookie-btns { display: flex; gap: 10px; }

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

@media (max-width: 768px) {
  h1 { font-size: 1.8rem; }
  .hero { padding: 48px 0; }
  .section { padding: 48px 0; }
  .cards-grid { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .article-row { grid-template-columns: 1fr; }
  .article-img { display: none; }

  .nav-toggle { display: flex; }

  .site-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--canvas);
    border-bottom: 1px solid var(--hairline);
    padding: 16px 24px;
  }

  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav > ul > li { border-bottom: 1px solid var(--hairline-soft); }
  .site-nav a { display: block; padding: 12px 0; }
  .dropdown { display: none !important; position: static; border: none; padding: 0 16px; }
  .has-dropdown.open .dropdown { display: block !important; }
}

@media (max-width: 640px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .cookie-banner { left: 12px; right: 12px; bottom: 12px; }
}