:root {
  --red: #A63C2B;
  --blue: #1C5D8C;
  --green: #3C7A4D;
  --cream: #F5F2EA;
  --purple: #4B3576;
  --wine: #7A2E3D;
  --gold: #D9A62E;
  --ink: #1F2937;
  --card: #E8E5DC;
  --radius: 20px 8px 20px 8px;
  --radius-mini: 8px 20px 8px 20px;
  --font-heading: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
}

ul, ol {
  list-style: none;
}

a {
  color: inherit;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

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

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
  box-shadow: 0 0 0 6px rgba(217, 166, 46, 0.3);
}

::selection {
  background: var(--gold);
  color: var(--ink);
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 8px;
  z-index: 2000;
  transform: translateY(-220%);
  background: var(--gold);
  color: var(--ink);
  font-weight: 700;
  padding: 8px 18px;
  border: 2px solid var(--ink);
  border-radius: var(--radius-mini);
  box-shadow: 4px 4px 0 var(--ink);
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.boot-progress {
  display: block;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  z-index: 1500;
  background: linear-gradient(90deg, var(--red), var(--gold), var(--green), var(--blue));
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.1s linear;
  box-shadow: 0 2px 0 rgba(245, 242, 234, 0.6);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--cream);
  border-bottom: 3px solid var(--ink);
  box-shadow: 4px 4px 0 rgba(31, 41, 55, 0.08);
}

.site-header::after {
  content: "";
  display: block;
  height: 5px;
  background: repeating-linear-gradient(90deg, var(--red) 0 16px, var(--gold) 16px 20px, var(--blue) 20px 36px, var(--cream) 36px 40px);
}

.header-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 48px);
}

.status-rail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  padding: 12px 0;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  min-width: 0;
}

.brand-lockup:hover .brand-mark {
  transform: translateY(-2px) rotate(-2deg);
}

.brand-mark {
  position: relative;
  flex: none;
  width: 48px;
  height: 48px;
  background: var(--red);
  border: 2px solid var(--ink);
  border-radius: var(--radius-mini);
  box-shadow: 3px 3px 0 var(--ink);
  overflow: hidden;
  transition: transform 0.2s ease;
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 4px;
  background: linear-gradient(135deg, var(--gold) 0 45%, var(--blue) 45% 100%);
  border: 2px solid var(--ink);
  border-radius: 4px 12px 4px 12px;
}

.brand-mark::after {
  content: "百";
  position: absolute;
  inset: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--cream);
  text-shadow: 1px 1px 0 var(--ink);
}

.brand-text {
  display: block;
  min-width: 0;
}

.brand-name {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.brand-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--wine);
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.sys-status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-left: auto;
  padding: 8px 14px;
  background: var(--purple);
  color: var(--cream);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: 3px 3px 0 rgba(31, 41, 55, 0.2);
}

.status-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-item + .status-item::before {
  content: "";
  width: 1px;
  height: 16px;
  margin-right: 14px;
  background: rgba(245, 242, 234, 0.4);
}

.status-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: rgba(245, 242, 234, 0.72);
}

.status-value {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--gold);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 900;
  color: var(--ink);
  background: var(--gold);
  border: 2px solid var(--ink);
  border-radius: var(--radius-mini);
  box-shadow: 2px 2px 0 var(--ink);
  cursor: pointer;
}

.nav-toggle:hover {
  background: var(--cream);
}

.nav-toggle-label {
  font-weight: 700;
}

.nav-toggle-icon {
  position: relative;
  width: 18px;
  height: 2px;
  background: currentColor;
  display: inline-block;
  transition: background 0.2s ease;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s ease, top 0.2s ease;
}

.nav-toggle-icon::before {
  top: -6px;
}

.nav-toggle-icon::after {
  top: 6px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 10px;
}

.main-nav {
  flex: 1;
  min-width: 0;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.nav-link {
  position: relative;
  display: block;
  padding: 8px 12px;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--ink);
  background: transparent;
  border: 2px solid transparent;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.nav-link:hover {
  background: var(--card);
  border-color: var(--ink);
}

.nav-link[aria-current="page"] {
  background: var(--blue);
  color: var(--cream);
  border-color: var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
}

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: -4px;
  height: 4px;
  background: var(--gold);
  clip-path: polygon(0 50%, 100% 0, 100% 100%, 0 50%);
}

.nav-shortcuts {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  border-left: 2px dashed var(--wine);
  padding-left: 14px;
}

.shortcut-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--wine);
  margin-right: 2px;
}

.shortcut-link {
  display: inline-block;
  padding: 5px 9px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--blue);
  background: var(--cream);
  border: 2px solid var(--blue);
  border-radius: var(--radius-mini);
  text-decoration: none;
  box-shadow: 2px 2px 0 rgba(28, 93, 140, 0.2);
}

.shortcut-link:hover {
  background: var(--blue);
  color: var(--cream);
  box-shadow: 2px 2px 0 var(--ink);
}

.container {
  max-width: 1440px;
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 48px);
}

.page-shell {
  padding-block: clamp(32px, 6vw, 80px);
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: clamp(16px, 3vw, 32px);
}

.card {
  display: block;
  padding: clamp(18px, 3vw, 28px);
  background: var(--cream);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: 5px 5px 0 rgba(31, 41, 55, 0.16);
}

.card > p {
  margin-top: 8px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--blue);
  background: var(--cream);
  border: 2px solid var(--ink);
  border-radius: 6px 16px 6px 16px;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 3.5rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
}

.section-subtitle {
  max-width: 62ch;
  font-size: 1rem;
  color: var(--blue);
  margin-bottom: 24px;
}

.breadcrumbs {
  margin-bottom: 24px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--wine);
}

.breadcrumb-link {
  color: var(--blue);
  text-decoration: none;
}

.breadcrumb-item[aria-current="page"] {
  color: var(--ink);
  font-weight: 700;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--cream);
  background: var(--blue);
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  box-shadow: 4px 4px 0 var(--ink);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
}

.btn:hover {
  background: var(--purple);
  transform: translate(-1px, -1px);
  box-shadow: 5px 5px 0 var(--ink);
}

.btn:active {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 var(--ink);
}

.btn--secondary {
  color: var(--blue);
  background: transparent;
  box-shadow: 4px 4px 0 rgba(31, 41, 55, 0.18);
}

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

[data-filter-trigger] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink);
  background: var(--card);
  border: 2px solid var(--ink);
  border-radius: var(--radius-mini);
  box-shadow: 2px 2px 0 var(--ink);
  cursor: pointer;
}

[data-filter-trigger]:hover {
  background: var(--cream);
}

[data-filter-trigger][aria-pressed="true"] {
  background: var(--red);
  color: var(--cream);
}

.image-shell {
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  min-height: 180px;
  background: var(--blue);
  border: 2px solid var(--ink);
  border-radius: 8px 20px 8px 20px;
  box-shadow: 4px 4px 0 rgba(31, 41, 55, 0.18);
}

.image-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(217, 166, 46, 0.25) 0 5%, transparent 5% 25%, rgba(245, 242, 234, 0.1) 25% 30%, transparent 30%),
    linear-gradient(45deg, transparent 0 40%, rgba(31, 41, 55, 0.22) 40% 44%, transparent 44%),
    radial-gradient(circle at 70% 30%, rgba(217, 166, 46, 0.28), transparent 28%);
}

.image-shell::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 20%;
  border-top: 2px solid rgba(245, 242, 234, 0.5);
  background: repeating-linear-gradient(90deg, rgba(28, 93, 140, 0.28) 0 1px, transparent 1px 8px);
}

.image-shell img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-shell--16x9 {
  aspect-ratio: 16 / 9;
}

.image-shell--4x3 {
  aspect-ratio: 4 / 3;
}

.image-shell--square {
  aspect-ratio: 1 / 1;
}

.image-shell--portrait {
  aspect-ratio: 3 / 4;
}

.site-footer {
  position: relative;
  margin-top: auto;
  background: var(--ink);
  color: var(--cream);
  border-top: 6px solid var(--red);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 100%;
  height: 6px;
  background: repeating-linear-gradient(90deg, var(--card) 0 14px, var(--wine) 14px 18px, var(--gold) 18px 34px, var(--ink) 34px 38px);
}

.footer-grid {
  max-width: 1440px;
  margin-inline: auto;
  padding: 56px clamp(16px, 4vw, 48px) 28px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr 1.6fr;
  gap: 32px;
}

.footer-brand {
  min-width: 0;
}

.brand-lockup--footer {
  color: var(--cream);
}

.brand-lockup--footer .brand-sub {
  color: var(--gold);
}

.brand-lockup--footer .brand-name {
  color: var(--cream);
}

.trust-statement {
  margin-top: 16px;
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(245, 242, 234, 0.72);
  border-left: 4px solid var(--red);
  padding-left: 12px;
}

.footer-section {
  min-width: 0;
}

.footer-heading {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  text-transform: uppercase;
  padding-bottom: 8px;
  margin-bottom: 16px;
  border-bottom: 1px dashed rgba(245, 242, 234, 0.25);
}

.footer-links {
  display: grid;
  gap: 8px;
  font-size: 0.9rem;
}

.footer-links a {
  color: var(--cream);
  text-decoration: none;
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--gold);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.footer-contact {
  display: grid;
  gap: 10px;
  font-size: 0.9rem;
}

.contact-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: rgba(245, 242, 234, 0.6);
}

.contact-value {
  display: inline-block;
  color: var(--cream);
  line-height: 1.5;
}

.footer-note {
  margin-top: 16px;
  font-size: 0.85rem;
  color: rgba(245, 242, 234, 0.75);
  border-left: 3px solid var(--green);
  padding-left: 10px;
  line-height: 1.7;
}

.footer-bottom {
  max-width: 1440px;
  margin-inline: auto;
  padding: 16px clamp(16px, 4vw, 48px) 28px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px 20px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: rgba(245, 242, 234, 0.7);
  border-top: 1px dashed rgba(245, 242, 234, 0.25);
}

.footer-address {
  font-style: normal;
}

@media (max-width: 1100px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 900px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-shell {
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 0;
    border-top: 2px solid var(--blue);
  }

  .nav-shell[data-open] {
    display: flex;
    animation: navDrop 0.18s ease;
  }

  .nav-list {
    flex-direction: column;
  }

  .nav-link {
    width: 100%;
  }

  .nav-shortcuts {
    border-left: none;
    border-top: 1px dashed var(--wine);
    padding-left: 0;
    padding-top: 12px;
    margin-top: 4px;
  }

  @keyframes navDrop {
    from {
      opacity: 0;
      transform: translateY(-4px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

@media (max-width: 640px) {
  .status-rail {
    gap: 8px;
  }

  .sys-status {
    order: 3;
    width: 100%;
    margin-left: 0;
    justify-content: space-between;
    padding: 8px 10px;
  }

  .status-item + .status-item::before {
    display: none;
  }

  .nav-toggle {
    margin-left: auto;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    grid-column: auto;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .brand-sub {
    display: none;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
  }

  .brand-name {
    font-size: 1.1rem;
  }

  .sys-status {
    font-size: 0.78rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}