:root {
  --db-color-primary: #0A1F44;
  --db-color-primary-light: #1B3B6F;
  --db-color-white: #FFFFFF;
  --db-color-gold: #D4A843;
  --db-color-red: #E63946;
  --db-color-ice: #A8C4E0;
  --db-color-muted: #4A5D7B;
  --db-color-bg-light: #F5F7FA;
  --db-color-border: #7A6A4A;
  --db-color-dark-brown: #2A1F0C;
  --db-font-heading: Montserrat Black, "Noto Sans SC", sans-serif;
  --db-font-body: "Noto Sans SC", system-ui, sans-serif;
  --db-font-data: "JetBrains Mono", monospace;
  --db-space-px: 24px;
  --db-space-lg: 48px;
  --db-width-max: 1280px;
  --db-width-content: 1200px;
  --db-header-h: 72px;
  --db-transition-fast: 0.2s ease;
  --db-transition-normal: 0.3s ease;
  --db-shadow: 0 4px 24px rgba(10, 31, 68, 0.08);
}

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

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

body {
  font-family: var(--db-font-body);
  background-color: var(--db-color-white);
  color: var(--db-color-primary);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeSpeed;
}

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

ul,
ol {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--db-color-gold);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

.db-skip-link,
.db-header__skip {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 2000;
  background: var(--db-color-gold);
  color: var(--db-color-primary);
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 0 0 6px 6px;
  transition: top 0.2s ease;
}

.db-skip-link:focus-visible,
.db-header__skip:focus-visible {
  top: 0;
}

.db-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--db-color-primary);
  border-bottom: 3px solid var(--db-color-gold);
  color: var(--db-color-white);
}

.db-header__inner {
  max-width: var(--db-width-max);
  margin: 0 auto;
  padding: 0 var(--db-space-px);
  min-height: var(--db-header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: relative;
}

.db-header__brand {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-shrink: 0;
}

.db-header__logo {
  font-family: var(--db-font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--db-color-white);
  position: relative;
  text-transform: uppercase;
  transform: skewX(-2deg);
}

.db-header__logo::after {
  content: "";
  display: block;
  width: 100%;
  height: 4px;
  margin-top: 2px;
  background: linear-gradient(90deg, var(--db-color-gold) 0%, var(--db-color-red) 100%);
  transform: skewX(-10deg);
}

.db-header__tagline {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--db-color-ice);
  text-transform: uppercase;
  white-space: nowrap;
}

.db-header__nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 4px;
  transition: border-color var(--db-transition-fast);
}

.db-header__nav-toggle:hover {
  border-color: var(--db-color-gold);
}

.db-header__nav-toggle-line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--db-color-white);
  transition: transform 0.2s ease, background 0.2s ease;
}

.db-header__nav-toggle[aria-expanded="true"] .db-header__nav-toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.db-header__nav-toggle[aria-expanded="true"] .db-header__nav-toggle-line:nth-child(2) {
  opacity: 0;
}

.db-header__nav-toggle[aria-expanded="true"] .db-header__nav-toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.db-header__nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.db-header__nav-link {
  display: block;
  padding: 10px 14px;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.88);
  border-bottom: 2px solid transparent;
  transition: color var(--db-transition-fast), border-color var(--db-transition-fast), background var(--db-transition-fast);
  white-space: nowrap;
}

.db-header__nav-link:hover {
  color: var(--db-color-gold);
  border-bottom-color: var(--db-color-gold);
  background: rgba(212, 168, 67, 0.08);
}

.db-header__nav-link[aria-current="page"] {
  color: var(--db-color-white);
  border-bottom-color: var(--db-color-gold);
  font-weight: 700;
  background: linear-gradient(180deg, rgba(212, 168, 67, 0) 0%, rgba(212, 168, 67, 0.18) 100%);
}

.db-scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 300;
  pointer-events: none;
  background: transparent;
}

.db-scroll-progress::after {
  content: "";
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--db-color-gold) 0%, var(--db-color-red) 100%);
  transition: width 0.1s linear;
  will-change: width;
}

@media (max-width: 1024px) {
  .db-header__inner {
    flex-wrap: wrap;
  }

  .db-header__nav {
    order: 3;
    flex-basis: 100%;
    display: none;
    padding-top: 12px;
    padding-bottom: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }

  .db-header__nav[data-open] {
    display: block;
  }

  .db-header__nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .db-header__nav-link {
    padding: 14px 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.9rem;
    border-left: 3px solid transparent;
  }

  .db-header__nav-link:hover {
    border-left-color: var(--db-color-gold);
  }

  .db-header__nav-link[aria-current="page"] {
    border-left-color: var(--db-color-gold);
  }

  .db-header__nav-toggle {
    display: flex;
  }
}

@media (max-width: 640px) {
  :root {
    --db-space-px: 16px;
  }

  .db-header__inner {
    padding: 0 16px;
    min-height: 64px;
  }

  .db-header__tagline {
    display: none;
  }

  .db-header__logo {
    font-size: 1.25rem;
  }
}

.db-footer {
  background-color: var(--db-color-primary);
  color: var(--db-color-white);
  border-top: 4px solid var(--db-color-red);
  margin-top: 0;
}

.db-footer__inner {
  max-width: var(--db-width-max);
  margin: 0 auto;
  padding: 56px var(--db-space-px) 40px;
}

.db-footer__brand {
  margin-bottom: 40px;
  max-width: 720px;
}

.db-footer__logo {
  font-family: var(--db-font-heading);
  font-size: 1.75rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  transform: skewX(-2deg);
  display: inline-block;
  position: relative;
  margin-bottom: 12px;
}

.db-footer__logo::after {
  content: "";
  display: block;
  width: 72px;
  height: 4px;
  background: linear-gradient(90deg, var(--db-color-gold) 0%, var(--db-color-red) 100%);
  transform: skewX(-10deg);
  margin-top: 4px;
}

.db-footer__about {
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 16px;
}

.db-footer__trust {
  font-size: 0.82rem;
  line-height: 1.8;
  color: var(--db-color-ice);
  margin-top: 12px;
}

.db-footer__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.db-footer__heading {
  font-family: var(--db-font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--db-color-gold);
  margin-bottom: 16px;
  padding-left: 12px;
  position: relative;
}

.db-footer__heading::before {
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  bottom: 3px;
  width: 4px;
  background: linear-gradient(180deg, var(--db-color-gold), var(--db-color-red));
  transform: skewX(-10deg);
}

.db-footer__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.db-footer__link {
  font-size: 0.86rem;
  color: rgba(255, 255, 255, 0.75);
  transition: color var(--db-transition-fast), padding-left var(--db-transition-fast);
}

.db-footer__link:hover {
  color: var(--db-color-gold);
  padding-left: 4px;
}

.db-footer__contact {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.db-footer__contact-line {
  font-size: 0.86rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
}

.db-footer__meta {
  background: #071530;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.db-footer__meta-inner {
  max-width: var(--db-width-max);
  margin: 0 auto;
  padding: 16px var(--db-space-px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 24px;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.55);
}

.db-footer__copyright,
.db-footer__icp {
  margin: 0;
}

.db-footer__meta-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.db-footer__meta-sep {
  color: rgba(255, 255, 255, 0.3);
}

@media (max-width: 960px) {
  .db-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .db-footer__inner {
    padding: 40px 16px 24px;
  }

  .db-footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .db-footer__meta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

.db-section {
  padding: 64px 0;
}

.db-section[data-dark] {
  background-color: var(--db-color-primary);
  color: var(--db-color-white);
}

.db-section[data-light] {
  background-color: var(--db-color-bg-light);
  color: var(--db-color-primary);
}

.db-container {
  max-width: var(--db-width-content);
  margin: 0 auto;
  padding: 0 var(--db-space-px);
}

.db-container--narrow {
  max-width: 760px;
}

.db-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--db-font-body);
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 12px 24px;
  border-radius: 4px;
  transition: background var(--db-transition-fast), color var(--db-transition-fast), transform var(--db-transition-fast), box-shadow var(--db-transition-fast);
  cursor: pointer;
  position: relative;
  border: 2px solid transparent;
}

.db-btn--primary {
  background: var(--db-color-gold);
  color: var(--db-color-primary);
}

.db-btn--primary:hover {
  background: #c99a3d;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(212, 168, 67, 0.3);
}

.db-btn--secondary {
  background: transparent;
  color: var(--db-color-gold);
  border-color: var(--db-color-gold);
}

.db-btn--secondary:hover {
  background: rgba(212, 168, 67, 0.08);
  transform: translateY(-2px);
}

.db-btn--red {
  background: var(--db-color-red);
  color: var(--db-color-white);
}

.db-btn--red:hover {
  background: #c92b38;
  transform: translateY(-2px);
}

.db-breadcrumb {
  padding: 16px 0;
  background: var(--db-color-bg-light);
  border-top: 1px solid transparent;
  border-bottom: 1px solid var(--db-color-border);
  margin-bottom: 40px;
}

.db-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--db-color-muted);
}

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

.db-breadcrumb a {
  color: var(--db-color-muted);
  transition: color var(--db-transition-fast);
}

.db-breadcrumb a:hover {
  color: var(--db-color-gold);
}

.db-breadcrumb [aria-current="page"] {
  color: var(--db-color-primary);
  font-weight: 600;
}

.db-divider {
  height: 4px;
  background: linear-gradient(90deg, var(--db-color-gold) 0%, rgba(212, 168, 67, 0.4) 60%, transparent 100%);
  transform: skewX(-10deg);
  border: none;
  margin: 32px 0;
}

.db-divider--fullwidth {
  width: 100%;
  margin: 0;
}

.db-img-frame {
  position: relative;
  background: var(--db-color-bg-light);
  border: 1px solid var(--db-color-border);
  overflow: hidden;
  aspect-ratio: 16 / 9;
}

.db-img-frame::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 32px;
  height: 32px;
  border-top: 3px solid var(--db-color-gold);
  border-left: 3px solid var(--db-color-gold);
  z-index: 2;
}

.db-img-frame::after {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 32px;
  height: 32px;
  border-bottom: 3px solid var(--db-color-gold);
  border-right: 3px solid var(--db-color-gold);
  z-index: 2;
}

.db-img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.db-img-frame--portrait {
  aspect-ratio: 3 / 4;
}

.db-panel {
  background: var(--db-color-white);
  border: 1px solid var(--db-color-ice);
  box-shadow: var(--db-shadow);
  border-radius: 2px;
}

.db-panel__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--db-color-ice);
  background: var(--db-color-bg-light);
  gap: 12px;
  flex-wrap: wrap;
}

.db-panel__title {
  font-family: var(--db-font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.db-panel__body {
  padding: 20px;
}

.db-data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}

.db-data-table th,
.db-data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--db-color-ice);
  text-align: left;
  white-space: nowrap;
}

.db-data-table th {
  font-weight: 600;
  color: var(--db-color-muted);
  background: var(--db-color-bg-light);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.76rem;
}

.db-data-table td {
  font-family: var(--db-font-data);
  font-variant-numeric: tabular-nums;
}

.db-data-table tr:last-child td {
  border-bottom: none;
}

.db-data-table tr:hover td {
  background: rgba(168, 196, 224, 0.12);
}

.db-tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 2px;
}

.db-tag--red {
  background: rgba(230, 57, 70, 0.1);
  color: var(--db-color-red);
  border-left: 3px solid var(--db-color-red);
}

.db-tag--gold {
  background: rgba(212, 168, 67, 0.1);
  color: #a98431;
  border-left: 3px solid var(--db-color-gold);
}

.db-tag--blue {
  background: rgba(27, 59, 111, 0.08);
  color: var(--db-color-primary-light);
  border-left: 3px solid var(--db-color-primary-light);
}

.db-text--muted {
  color: var(--db-color-muted);
}

.db-text--accent {
  color: var(--db-color-gold);
}

.db-text--data {
  font-family: var(--db-font-data);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.db-heading {
  font-family: var(--db-font-heading);
  font-weight: 900;
  line-height: 1.15;
  transform: skewX(-2deg);
  letter-spacing: -0.01em;
}

.db-heading--h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.db-heading--h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
}

.db-lead {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--db-color-muted);
}

.db-text-center {
  text-align: center;
}

@media (max-width: 1024px) {
  .db-header__nav-list .db-header__nav-link {
    font-size: 0.78rem;
    padding: 10px 10px;
  }
}

@media (max-width: 768px) {
  .db-nav {
    order: 3;
    flex-basis: 100%;
    display: none;
    padding: 12px 0 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
  }

  .db-nav[data-open] {
    display: block;
  }

  .db-nav-list {
    flex-direction: column;
    gap: 0;
  }

  .db-nav-link {
    display: block;
    padding: 14px 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}