:root {
  --xc-apricot: #F0812A;
  --xc-apricot-soft: #FFB871;
  --xc-green-deep: #0E3B33;
  --xc-green-mid: #14544A;
  --xc-steel: #55707E;
  --xc-steel-light: #D7E2E8;
  --xc-gold: #F2C14E;
  --xc-wine: #7A2138;
  --xc-indigo: #3A2E5C;
  --xc-paper: #F6F4EF;
  --xc-ink: #101619;

  --xc-line: rgba(16, 22, 25, 0.16);
  --xc-line-dark: rgba(215, 226, 232, 0.22);

  --xc-font-head: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
  --xc-font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, sans-serif;
  --xc-font-num: "SFMono-Regular", "JetBrains Mono", "Cascadia Mono", Consolas, "Liberation Mono", Menlo, monospace;

  --xc-shell: 1240px;
  --xc-gutter: 20px;
  --xc-step: 0;
  --xc-progress: 0;

  --xc-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--xc-paper);
  color: var(--xc-ink);
  font-family: var(--xc-font-body);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.01em;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--xc-font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.6em;
  color: var(--xc-ink);
}

h1 { font-size: clamp(2rem, 5.2vw, 4.5rem); }
h2 { font-size: clamp(1.55rem, 3.4vw, 2.6rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.55rem); }
p { margin: 0 0 1.15em; }

a { color: var(--xc-green-deep); text-decoration: none; }
a:hover { color: var(--xc-apricot); }
ul { margin: 0; padding: 0; list-style: none; }
li { margin: 0; }

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

/* ---------- skip link ---------- */
.xc-skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 999;
  background: var(--xc-gold);
  color: var(--xc-ink);
  padding: 12px 20px;
  font-weight: 700;
  border: 1px solid var(--xc-ink);
}
.xc-skip:focus {
  left: 8px;
  top: 8px;
}

/* ---------- progress ---------- */
.xc-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  background: rgba(14, 59, 51, 0.35);
  z-index: 60;
}
.xc-progress__bar {
  display: block;
  height: 100%;
  width: calc(var(--xc-progress) * 1%);
  background: linear-gradient(90deg, var(--xc-apricot), var(--xc-gold));
}

/* ---------- header ---------- */
.xc-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--xc-green-deep);
  color: var(--xc-paper);
  border-bottom: 1px solid var(--xc-line-dark);
}
.xc-header__inner {
  width: 100%;
  max-width: var(--xc-shell);
  margin: 0 auto;
  padding: 0 var(--xc-gutter);
  min-height: 66px;
  display: flex;
  align-items: center;
  gap: 18px;
}
.xc-header__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--xc-paper);
  flex: 0 0 auto;
  padding: 10px 0;
}
.xc-header__brand:hover { color: var(--xc-apricot-soft); }
.xc-brand__mark {
  width: 14px;
  height: 14px;
  background: var(--xc-apricot);
  box-shadow: inset 0 0 0 3px var(--xc-green-deep);
  border: 1px solid var(--xc-gold);
  flex: 0 0 auto;
}
.xc-brand__text { display: flex; flex-direction: column; line-height: 1.1; }
.xc-brand__name {
  font-family: var(--xc-font-head);
  font-weight: 900;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
}
.xc-brand__sub {
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--xc-steel-light);
  text-transform: uppercase;
}

/* nav */
.xc-nav { flex: 1 1 auto; min-width: 0; }
.xc-nav__list {
  display: flex;
  align-items: stretch;
  gap: 2px;
  flex-wrap: nowrap;
}
.xc-nav__item { display: flex; }
.xc-nav__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 22px 11px;
  color: var(--xc-steel-light);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  white-space: nowrap;
  border-bottom: 3px solid transparent;
  transition: color 0.16s var(--xc-ease), border-color 0.16s var(--xc-ease);
}
.xc-nav__link:hover {
  color: var(--xc-paper);
  border-bottom-color: var(--xc-steel);
}
.xc-nav__index {
  font-family: var(--xc-font-num);
  font-size: 0.66rem;
  color: var(--xc-steel);
  letter-spacing: 0.02em;
}
.xc-nav__link[aria-current="page"] {
  color: var(--xc-paper);
  border-bottom-color: var(--xc-apricot);
}
.xc-nav__link[aria-current="page"] .xc-nav__index { color: var(--xc-apricot); }
.xc-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 11px;
  bottom: -3px;
  width: 7px;
  height: 7px;
  background: var(--xc-gold);
  transform: translateY(3px);
}

/* actions */
.xc-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}
.xc-actions__ghost { color: var(--xc-steel-light); border-color: var(--xc-steel); }
.xc-actions__ghost:hover { color: var(--xc-gold); border-color: var(--xc-gold); }

/* buttons */
.xc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 16px;
  font-family: var(--xc-font-head);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  border: 1px solid transparent;
  border-radius: 0;
  cursor: pointer;
  text-align: center;
  transition: background-color 0.16s var(--xc-ease), color 0.16s var(--xc-ease), border-color 0.16s var(--xc-ease);
}
.xc-btn--primary {
  background: var(--xc-apricot);
  color: #14100c;
  border-color: var(--xc-apricot);
  box-shadow: 0 0 0 1px var(--xc-gold) inset;
}
.xc-btn--primary:hover { background: #ff9440; color: #14100c; }
.xc-btn--outline {
  background: transparent;
  color: var(--xc-green-deep);
  border-color: var(--xc-line);
}
.xc-btn--outline:hover {
  color: var(--xc-apricot);
  border-color: var(--xc-apricot);
}
.xc-btn--gold {
  background: transparent;
  color: var(--xc-ink);
  border-color: var(--xc-gold);
}
.xc-btn--gold:hover { background: var(--xc-gold); color: var(--xc-ink); }

/* nav toggle */
.xc-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 40px;
  padding: 0 9px;
  background: transparent;
  border: 1px solid var(--xc-steel);
  cursor: pointer;
}
.xc-nav-toggle__bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--xc-paper);
  transition: transform 0.2s var(--xc-ease), opacity 0.2s var(--xc-ease);
}
.xc-nav-toggle[aria-expanded="true"] .xc-nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.xc-nav-toggle[aria-expanded="true"] .xc-nav-toggle__bar:nth-child(2) { opacity: 0; }
.xc-nav-toggle[aria-expanded="true"] .xc-nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ribbon */
.xc-ribbon {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 7px var(--xc-gutter);
  background: var(--xc-green-mid);
  border-top: 1px solid var(--xc-line-dark);
  overflow: hidden;
}
.xc-ribbon__label {
  font-family: var(--xc-font-num);
  font-size: 0.68rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--xc-steel-light);
  white-space: nowrap;
}

/* ---------- layout ---------- */
.xc-main { display: block; }
.xc-shell {
  width: 100%;
  max-width: var(--xc-shell);
  margin: 0 auto;
  padding: 0 var(--xc-gutter);
}
.xc-prose { max-width: 68ch; }
.xc-lede {
  font-size: 1.08rem;
  line-height: 1.85;
  color: #2c3a3f;
  max-width: 62ch;
}
.xc-kicker {
  display: inline-block;
  font-family: var(--xc-font-num);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--xc-steel);
  border-top: 1px solid var(--xc-line);
  border-bottom: 1px solid var(--xc-line);
  padding: 5px 0;
}
.xc-section {
  position: relative;
  padding: clamp(48px, 8vw, 96px) 0;
  border-top: 1px solid var(--xc-line);
}
.xc-section__head { margin-bottom: 32px; max-width: 72ch; }
.xc-section__num {
  font-family: var(--xc-font-num);
  font-size: 0.86rem;
  letter-spacing: 0.24em;
  color: var(--xc-apricot);
  display: block;
  margin-bottom: 10px;
}
.xc-section__title { margin: 0 0 10px; }

/* breadcrumb */
.xc-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 18px 0;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--xc-steel);
}
.xc-breadcrumb__item { color: var(--xc-steel); }
.xc-breadcrumb__item a { color: var(--xc-green-deep); }
.xc-breadcrumb__item a:hover { color: var(--xc-apricot); }
.xc-breadcrumb__sep { color: var(--xc-steel-light); }

/* grid */
.xc-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: 1fr;
}
.xc-grid--cards { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.xc-rail {
  align-self: start;
  border-left: 1px solid var(--xc-line);
  padding-left: 18px;
}

/* card */
.xc-card {
  background: #fff;
  border: 1px solid var(--xc-line);
  border-top: 3px solid var(--xc-green-deep);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.xc-card--data {
  background: var(--xc-steel-light);
  border-top-color: var(--xc-steel);
}
.xc-card__tag {
  font-family: var(--xc-font-num);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--xc-apricot);
}
.xc-card__title { font-size: 1.12rem; margin: 0; }
.xc-card__meta {
  font-size: 0.78rem;
  color: var(--xc-steel);
  letter-spacing: 0.05em;
  margin-top: auto;
  border-top: 1px solid var(--xc-line);
  padding-top: 10px;
}

/* tabs */
.xc-tabs {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  border-bottom: 1px solid var(--xc-line);
  margin-bottom: 26px;
}
.xc-tab {
  appearance: none;
  background: transparent;
  border: 1px solid transparent;
  border-bottom: 3px solid transparent;
  padding: 12px 18px;
  font-family: var(--xc-font-head);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--xc-steel);
  cursor: pointer;
  transition: color 0.16s var(--xc-ease), border-color 0.16s var(--xc-ease), background-color 0.16s var(--xc-ease);
}
.xc-tab:hover { color: var(--xc-green-deep); background: rgba(240, 129, 42, 0.08); }
.xc-tab[aria-selected="true"] {
  color: var(--xc-ink);
  border-bottom-color: var(--xc-apricot);
  background: rgba(240, 129, 42, 0.12);
}
.xc-tabpanel { padding-top: 4px; }
.xc-tabpanel[hidden] { display: none; }

/* media */
.xc-media {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--xc-green-deep);
  border: 1px solid var(--xc-line-dark);
  overflow: hidden;
}
.xc-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, rgba(215, 226, 232, 0.12) 0 1px, transparent 1px 22px),
    repeating-linear-gradient(90deg, rgba(215, 226, 232, 0.12) 0 1px, transparent 1px 22px);
  pointer-events: none;
}
.xc-media img,
.xc-media__inner {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.xc-media--wide { aspect-ratio: 16 / 9; }
.xc-media--tall { aspect-ratio: 3 / 4; }
.xc-media__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  right: 0;
  padding: 10px 14px;
  background: rgba(14, 59, 51, 0.86);
  color: var(--xc-steel-light);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
}
.xc-figure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--xc-line-dark);
  border: 1px solid var(--xc-line-dark);
}
.xc-stat {
  background: var(--xc-green-mid);
  color: var(--xc-paper);
  padding: 22px 20px;
}
.xc-stat__num {
  display: block;
  font-family: var(--xc-font-num);
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  line-height: 1;
  color: var(--xc-gold);
  letter-spacing: -0.01em;
}
.xc-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--xc-steel-light);
}

/* disclosure */
.xc-disclosure {
  border-top: 1px solid var(--xc-line);
}
.xc-disclosure__btn {
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 18px 0;
  font-family: var(--xc-font-head);
  font-size: 1rem;
  font-weight: 800;
  color: var(--xc-ink);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
}
.xc-disclosure__btn::after {
  content: "＋";
  font-family: var(--xc-font-num);
  color: var(--xc-apricot);
  font-weight: 700;
}
.xc-disclosure__btn[aria-expanded="true"]::after { content: "－"; }
.xc-disclosure__panel { padding: 0 0 20px; color: #2c3a3f; }
.xc-disclosure__panel[hidden] { display: none; }

/* reveal */
.xc-reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s var(--xc-ease), transform 0.5s var(--xc-ease);
}
.xc-reveal[data-shown="true"] { opacity: 1; transform: none; }

/* to top */
.xc-to-top {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 55;
  background: var(--xc-green-deep);
  color: var(--xc-paper);
  border: 1px solid var(--xc-gold);
  padding: 11px 16px;
  font-family: var(--xc-font-num);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  cursor: pointer;
}
.xc-to-top:hover { background: var(--xc-apricot); color: var(--xc-ink); }
.xc-to-top[hidden] { display: none; }

/* ---------- footer ---------- */
.xc-footer {
  background: var(--xc-green-deep);
  color: var(--xc-steel-light);
  border-top: 3px solid var(--xc-apricot);
  margin-top: 40px;
}
.xc-footer__inner {
  width: 100%;
  max-width: var(--xc-shell);
  margin: 0 auto;
  padding: 52px var(--xc-gutter) 34px;
  display: grid;
  gap: 34px;
  grid-template-columns: 1fr;
}
.xc-footer__brandlink {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--xc-paper);
  font-family: var(--xc-font-head);
  font-weight: 900;
  font-size: 1.15rem;
  letter-spacing: 0.06em;
}
.xc-footer__brandlink:hover { color: var(--xc-apricot-soft); }
.xc-footer__brandlink .xc-brand__mark { border-color: var(--xc-gold); }
.xc-footer__tagline {
  margin: 12px 0 0;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--xc-steel-light);
}
.xc-footer__closing {
  margin: 14px 0 0;
  font-size: 0.9rem;
  color: var(--xc-paper);
  border-left: 3px solid var(--xc-gold);
  padding-left: 12px;
}
.xc-index {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 26px;
}
.xc-index__title {
  font-family: var(--xc-font-num);
  font-size: 0.7rem;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--xc-gold);
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--xc-line-dark);
}
.xc-index__list { display: grid; gap: 8px; }
.xc-index__link {
  color: var(--xc-steel-light);
  font-size: 0.86rem;
  letter-spacing: 0.04em;
}
.xc-index__link:hover { color: var(--xc-apricot); }
.xc-footer__hours {
  font-family: var(--xc-font-num);
  font-size: 0.95rem;
  color: var(--xc-paper);
  margin: 0 0 12px;
}
.xc-footer__contactlist { display: grid; gap: 8px; font-size: 0.84rem; }
.xc-footer__meta {
  border-top: 1px solid var(--xc-line-dark);
  background: rgba(16, 22, 25, 0.4);
}
.xc-footer__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  justify-content: space-between;
  padding: 16px var(--xc-gutter);
  max-width: 100%;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--xc-steel);
}
.xc-footer__meta p { margin: 0; }
.xc-footer__legal { color: var(--xc-steel-light); }

/* ---------- responsive ---------- */
@media (min-width: 720px) {
  :root { --xc-gutter: 28px; }
  .xc-footer__inner { grid-template-columns: 1.1fr 1.6fr; }
  .xc-grid--7-5 { grid-template-columns: 7fr 5fr; }
  .xc-grid--8-4 { grid-template-columns: 8fr 4fr; }
}

@media (min-width: 1000px) {
  :root { --xc-gutter: 36px; }
  .xc-footer__inner { grid-template-columns: 1fr 1.7fr 0.9fr; }
  .xc-rail { position: sticky; top: 96px; }
}

@media (max-width: 999px) {
  .xc-header__inner { flex-wrap: wrap; padding-top: 8px; padding-bottom: 8px; }
  .xc-nav-toggle { display: flex; margin-left: auto; }
  .xc-actions { order: 4; width: 100%; padding-bottom: 8px; }
  .xc-nav {
    order: 5;
    flex-basis: 100%;
    max-height: 0;
    overflow: hidden;
    border-top: 1px solid transparent;
    transition: max-height 0.3s var(--xc-ease), border-color 0.3s var(--xc-ease);
  }
  .xc-nav[data-open="true"] {
    max-height: 520px;
    border-top-color: var(--xc-line-dark);
  }
  .xc-nav__list { flex-direction: column; gap: 0; }
  .xc-nav__item { border-bottom: 1px solid rgba(215, 226, 232, 0.14); }
  .xc-nav__link { padding: 15px 2px; width: 100%; border-bottom: 0; }
  .xc-nav__link[aria-current="page"] { border-bottom: 0; box-shadow: inset 3px 0 0 var(--xc-apricot); }
  .xc-nav__link[aria-current="page"]::after { left: auto; right: 0; bottom: 50%; transform: translateY(50%); }
  .xc-ribbon--head { display: none; }
}

@media (max-width: 480px) {
  body { font-size: 15.5px; }
  .xc-actions { flex-wrap: wrap; }
  .xc-btn { flex: 1 1 auto; }
  .xc-ribbon { padding: 6px 14px; }
  .xc-ribbon__label { letter-spacing: 0.16em; font-size: 0.62rem; }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .xc-reveal { opacity: 1; transform: none; }
  .xc-nav { transition: none; }
}