:root {
  --paper: #F5E9D3;
  --paper-deep: #EAD9BE;
  --ink: #2D2A26;
  --gold: #C9A76A;
  --gold-bright: #E3C982;
  --red: #B03A2E;
  --red-deep: #8A1C0F;
  --blue: #1F3A5F;
  --green: #1E6F50;
  --white-warm: #FFF9F0;
  --font-display: "STXingkai", "华文行楷", "LiShu", "隶书", "KaiTi", "楷体", "SimSun", "宋体", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "微软雅黑", system-ui, -apple-system, sans-serif;
  --container-w: 1200px;
  --radius: 14px;
  --spacing-xs: 6px;
  --spacing-sm: 12px;
  --spacing-md: 24px;
  --spacing-lg: 40px;
  --spacing-xl: 64px;
  --shadow-panel: 0 2px 16px rgba(45, 42, 38, 0.07);
  --shadow-cta: 0 4px 14px rgba(176, 58, 46, 0.28);
  --transition: 0.3s ease;
}

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

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

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

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

a {
  color: var(--blue);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--red);
}

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

ul,
ol {
  list-style: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

.site-container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: var(--red);
  color: var(--paper);
  font-weight: 600;
  padding: 12px 24px;
  text-decoration: none;
  border-bottom-right-radius: var(--radius);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.skip-link:focus {
  left: 0;
}

/* ========== HEADER ========== */

.site-header {
  background: var(--paper);
  border-top: 5px solid var(--ink);
  border-bottom: 2px solid var(--gold);
  position: relative;
  z-index: 100;
}

.header-inner {
  padding-top: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
}

.masthead {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xs) 0;
}

.masthead::before,
.masthead::after {
  content: "";
  display: block;
  height: 1px;
  width: 72px;
  background: var(--gold);
  margin: 0 var(--spacing-md);
}

.masthead::before {
  background: linear-gradient(90deg, transparent, var(--gold));
}

.masthead::after {
  background: linear-gradient(90deg, var(--gold), transparent);
}

.nav-toggle {
  display: none;
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 2px solid var(--gold);
  border-radius: 10px;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.nav-toggle:hover {
  background: rgba(201, 167, 106, 0.15);
  border-color: var(--red);
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
}

.brand-coin {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ink);
  white-space: nowrap;
}

.brand-sub {
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  color: var(--gold);
  text-transform: uppercase;
  text-align: center;
}

.navrow {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xs) 0 var(--spacing-sm);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-link {
  position: relative;
  display: block;
  padding: 6px 2px;
  color: var(--ink);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: color var(--transition);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--red);
  transition: right var(--transition);
}

.nav-link:hover {
  color: var(--red);
}

.nav-link:hover::after,
.nav-link[aria-current="page"]::after {
  right: 0;
}

.nav-link[aria-current="page"] {
  color: var(--red);
  font-weight: 600;
}

.header-cta {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--red);
  color: var(--paper);
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.06em;
  padding: 10px 22px;
  border: 2px solid var(--gold);
  border-radius: 999px;
  box-shadow: var(--shadow-cta);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.header-cta:hover {
  background: var(--red-deep);
  color: var(--paper);
  transform: translateY(-50%) translateY(-1px);
  box-shadow: 0 6px 18px rgba(138, 28, 15, 0.35);
}

.cta-star {
  width: 16px;
  height: 16px;
}

/* ========== FOOTER ========== */

.site-footer {
  background: var(--red-deep);
  color: var(--paper);
  border-top: 4px solid var(--gold);
  margin-top: var(--spacing-xl);
}

.footer-inner {
  padding-top: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
}

.footer-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid rgba(201, 167, 106, 0.3);
}

.footer-copy-col {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  margin-bottom: var(--spacing-xs);
}

.footer-coin {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--gold-bright);
}

.footer-copyright {
  font-size: 0.85rem;
  color: rgba(245, 233, 211, 0.8);
}

.footer-address {
  font-size: 0.8rem;
  color: rgba(245, 233, 211, 0.65);
}

.footer-link-col {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-heading {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--gold-bright);
  letter-spacing: 0.15em;
  margin-bottom: var(--spacing-xs);
  position: relative;
  padding-bottom: 6px;
}

.footer-heading::after {
  content: "";
  display: block;
  width: 36px;
  height: 2px;
  background: var(--gold);
  margin-top: 6px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav a {
  color: rgba(245, 233, 211, 0.85);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color var(--transition), padding-left var(--transition);
}

.footer-nav a:hover {
  color: var(--gold-bright);
  padding-left: 6px;
}

.footer-service {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm) var(--spacing-lg);
  padding-top: var(--spacing-md);
}

.footer-service-line {
  font-size: 0.82rem;
  color: rgba(245, 233, 211, 0.7);
  letter-spacing: 0.04em;
}

/* ========== BUTTONS ========== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.92rem;
  font-weight: 600;
  font-family: var(--font-body);
  letter-spacing: 0.05em;
  border-radius: 999px;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.2s ease, box-shadow var(--transition);
}

.btn:active {
  transform: scale(0.98);
}

.btn-gold {
  background: var(--gold);
  color: var(--ink);
  border-color: var(--gold-bright);
  box-shadow: 0 3px 10px rgba(201, 167, 106, 0.35);
}

.btn-gold:hover {
  background: var(--gold-bright);
  color: var(--ink);
  box-shadow: 0 5px 16px rgba(201, 167, 106, 0.45);
}

.btn-red {
  background: var(--red);
  color: var(--paper);
  border-color: var(--gold);
  box-shadow: var(--shadow-cta);
}

.btn-red:hover {
  background: var(--red-deep);
  color: var(--paper);
}

.btn-outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--gold);
}

.btn-outline:hover {
  background: rgba(201, 167, 106, 0.1);
  border-color: var(--red);
  color: var(--red);
}

/* ========== TO TOP ========== */

.to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--red);
  color: var(--paper);
  border: 2px solid var(--gold);
  box-shadow: 0 4px 14px rgba(138, 28, 15, 0.3);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition), background var(--transition), color var(--transition);
  z-index: 90;
}

.to-top svg {
  width: 22px;
  height: 22px;
}

.to-top.to-top-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.to-top:hover {
  background: var(--gold);
  color: var(--red-deep);
}

/* ========== BREADCRUMBS ========== */

.breadcrumbs {
  margin: var(--spacing-md) 0;
  font-size: 0.85rem;
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.breadcrumbs li + li::before {
  content: "/";
  color: var(--gold);
}

.breadcrumbs a {
  color: var(--blue);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--red);
}

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

/* ========== CONTENT SECTIONS ========== */

.section {
  padding: var(--spacing-xl) 0;
}

.section-tight {
  padding: var(--spacing-md) 0;
}

.section-heading {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.08em;
  line-height: 1.35;
  margin-bottom: var(--spacing-sm);
}

.section-heading::before {
  content: "◆ ";
  color: var(--red);
  font-size: 0.8em;
  vertical-align: 0.15em;
}

.section-kicker {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: var(--spacing-xs);
}

/* ========== GRIDS ========== */

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

/* ========== MEDIA FRAMES ========== */

.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  background: var(--paper-deep);
  border: 1px solid rgba(201, 167, 106, 0.45);
  border-radius: var(--radius);
  aspect-ratio: 4 / 3;
}

.media-frame[data-ratio="wide"] {
  aspect-ratio: 16 / 9;
}

.media-frame[data-ratio="portrait"] {
  aspect-ratio: 3 / 4;
}

.media-frame[data-ratio="square"] {
  aspect-ratio: 1 / 1;
}

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

/* ========== TAGS ========== */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  margin: 4px 4px 4px 0;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  border-radius: 999px;
}

.tag-gold {
  background: rgba(201, 167, 106, 0.18);
  color: var(--gold);
  border: 1px solid rgba(201, 167, 106, 0.4);
}

.tag-red {
  background: rgba(176, 58, 46, 0.12);
  color: var(--red);
  border: 1px solid rgba(176, 58, 46, 0.3);
}

.tag-blue {
  background: rgba(31, 58, 95, 0.08);
  color: var(--blue);
  border: 1px solid rgba(31, 58, 95, 0.3);
}

.tag-green {
  background: rgba(30, 111, 80, 0.1);
  color: var(--green);
  border: 1px solid rgba(30, 111, 80, 0.3);
}

/* ========== PANELS ========== */

.panel {
  background: var(--white-warm);
  border: 1px solid rgba(201, 167, 106, 0.4);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-panel);
}

.panel-label {
  display: inline-block;
  background: var(--blue);
  color: var(--paper);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: var(--spacing-sm);
}

.panel-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.83rem;
  color: var(--ink);
}

.panel-status::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
}

.panel-status[data-state="warn"]::before {
  background: var(--gold);
}

.panel-status[data-state="off"]::before {
  background: var(--red);
}

/* ========== REVEAL MOTION ========== */

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* ========== FOCUS ========== */

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
  border-radius: 4px;
}

.nav-toggle:focus-visible,
.header-cta:focus-visible,
.btn:focus-visible,
.to-top:focus-visible {
  outline-color: var(--red);
}

/* ========== REDUCED MOTION ========== */

@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;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .header-cta:hover,
  .btn:hover {
    transform: none;
  }

  .to-top {
    transition: none;
  }
}

/* ========== RESPONSIVE ========== */

@media (max-width: 992px) {
  .masthead::before,
  .masthead::after {
    width: 36px;
  }

  .brand-name {
    font-size: 1.7rem;
  }

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

  .navrow {
    justify-content: center;
    padding-right: 120px;
  }

  .site-nav {
    gap: var(--spacing-md);
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .masthead {
    padding: var(--spacing-xs) 0;
  }

  .masthead::before,
  .masthead::after {
    display: none;
  }

  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
  }

  .brand-name {
    font-size: 1.5rem;
    letter-spacing: 0.06em;
  }

  .brand-sub {
    font-size: 0.55rem;
  }

  .brand-coin {
    width: 38px;
    height: 38px;
  }

  .navrow {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--paper);
    border-top: 2px solid var(--gold);
    border-bottom: 2px solid var(--gold);
    box-shadow: 0 12px 24px rgba(45, 42, 38, 0.14);
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-lg);
    z-index: 110;
  }

  .navrow[data-open] {
    display: flex;
  }

  .site-nav {
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
  }

  .nav-link {
    display: block;
    text-align: center;
    padding: 10px 0;
    font-size: 1rem;
    border-bottom: 1px solid rgba(201, 167, 106, 0.2);
  }

  .nav-link::after {
    display: none;
  }

  .header-cta {
    position: static;
    transform: none;
    width: 100%;
    justify-content: center;
    margin-top: var(--spacing-sm);
  }

  .header-cta:hover {
    transform: none;
  }

  .footer-cols {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .footer-service {
    flex-direction: column;
    text-align: center;
    gap: var(--spacing-xs);
  }

  .to-top {
    right: 16px;
    bottom: 16px;
    width: 42px;
    height: 42px;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-lg: 28px;
    --spacing-xl: 44px;
    --spacing-md: 18px;
  }

  .brand-name {
    font-size: 1.3rem;
  }

  .brand-coins {
    width: 34px;
    height: 34px;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .section-heading {
    font-size: 1.5rem;
  }

  .header-cta {
    padding: 12px 18px;
    font-size: 0.84rem;
  }
}