/* ============================================================
   新葡京指南 Shared Site CSS
   ============================================================ */

/* ---------- 1. CSS 变量 ---------- */
:root {
  --color-navy: #0A1F44;
  --color-gold: #D4B106;
  --color-pale-gold: #F1E6A3;
  --color-deep-blue: #1D3557;
  --color-white: #FFFFFF;
  --color-red: #E63946;
  --color-slate: #6C757D;
  --color-ink: #212529;

  --font-heading: Georgia, 'Times New Roman', serif;
  --font-body: Helvetica, 'PingFang SC', 'Microsoft YaHei', sans-serif;

  --container-max: 1320px;
  --header-height: 4.125rem;
  --radius-sm: 2px;
  --radius-md: 4px;
  --transition-fast: 200ms ease;
  --transition-base: 300ms ease;
}

/* ---------- 2. Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-height) + 1rem);
}

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-white);
  min-height: 100vh;
}

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

a {
  color: var(--color-deep-blue);
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

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

button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  background: none;
  color: inherit;
  cursor: pointer;
}

ul,
ol {
  list-style: none;
}

/* ---------- 3. 焦点状态 ---------- */
:focus {
  outline: 2px solid var(--color-gold);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

.site-header :focus {
  outline-color: var(--color-gold);
}

.site-footer :focus {
  outline-color: var(--color-gold);
}

/* ---------- 4. 中文排版 ---------- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  line-height: 1.25;
  color: var(--color-navy);
  font-weight: bold;
  letter-spacing: 0.01em;
  margin-bottom: 0.75em;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.625rem);
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.625rem);
}

h3 {
  font-size: clamp(1.375rem, 3vw, 1.875rem);
}

h4 {
  font-size: clamp(1.2rem, 2vw, 1.375rem);
}

h5 {
  font-size: 1.125rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: 1rem;
  line-height: 1.7;
}

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

.text-small {
  font-size: 0.85rem;
}

/* ---------- 5. 内容容器与分区 ---------- */
.site-container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2.5rem);
}

#main-content {
  display: block;
  scroll-margin-top: calc(var(--header-height) + 1rem);
}

.section-band {
  padding: clamp(3rem, 7vw, 5.5rem) 0;
}

.section-band--white {
  background: var(--color-white);
  color: var(--color-ink);
}

.section-band--pale-gold {
  background: var(--color-pale-gold);
  color: var(--color-ink);
}

.section-band--navy {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.85);
}

.section-band--deep-blue {
  background: var(--color-deep-blue);
  color: rgba(255, 255, 255, 0.85);
}

.section-band--navy h1,
.section-band--navy h2,
.section-band--navy h3,
.section-band--deep-blue h1,
.section-band--deep-blue h2,
.section-band--deep-blue h3 {
  color: var(--color-white);
}

.section-band--navy a:not(.btn),
.section-band--deep-blue a:not(.btn) {
  color: var(--color-pale-gold);
}

.section-band--navy a:not(.btn):hover,
.section-band--deep-blue a:not(.btn):hover {
  color: var(--color-gold);
}

/* ---------- 6. Skip Link ---------- */
.skip-link {
  position: fixed;
  top: -3.5rem;
  left: 1rem;
  z-index: 999;
  display: inline-block;
  padding: 0.55rem 1.25rem;
  background: var(--color-gold);
  color: var(--color-navy);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: bold;
  text-decoration: none;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  transition: top var(--transition-fast);
}

.skip-link:focus,
.skip-link:focus-visible {
  top: 1rem;
}

/* ---------- 7. 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-navy);
  border-bottom: 1px solid rgba(212, 177, 6, 0.3);
  box-shadow: 0 2px 16px rgba(10, 31, 68, 0.35);
}

.site-header::before {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--color-gold) 0%, var(--color-pale-gold) 50%, var(--color-gold) 100%);
}

.site-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2.5rem);
  min-height: var(--header-height);
}

.site-header__progress {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold) 0%, var(--color-red) 100%);
  pointer-events: none;
  z-index: 3;
  transition: width 100ms linear;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.site-header__brand:hover {
  color: inherit;
}

.site-header__brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, var(--color-gold) 0%, #f0d93a 100%);
  color: var(--color-navy);
  font-family: var(--font-heading);
  font-weight: bold;
  font-size: 1.25rem;
  border: 1px solid rgba(10, 31, 68, 0.2);
  transform: rotate(-3deg);
  box-shadow: 2px 2px 0 rgba(212, 177, 6, 0.3);
}

.site-header__brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.site-header__brand-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: bold;
  letter-spacing: 0.06em;
  color: var(--color-white);
  white-space: nowrap;
}

.site-header__brand-tag {
  margin-top: 0.1rem;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: var(--color-pale-gold);
  white-space: nowrap;
}

/* ---------- 8. 主导航 ---------- */
.site-nav__list {
  display: flex;
  align-items: center;
  counter-reset: nav-item;
  gap: 0.125rem;
}

.site-nav__item {
  counter-increment: nav-item;
}

.site-nav__link {
  display: block;
  padding: 0.45rem 0.75rem;
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  transition: color var(--transition-base), background-color var(--transition-base), border-color var(--transition-base);
}

.site-nav__link::before {
  content: counter(nav-item, decimal-leading-zero);
  font-size: 0.6rem;
  font-weight: bold;
  color: var(--color-gold);
  margin-right: 0.4rem;
  vertical-align: 0.1em;
  opacity: 0.7;
}

.site-nav__link:hover {
  color: var(--color-gold);
  border-color: rgba(212, 177, 6, 0.45);
  background: rgba(212, 177, 6, 0.08);
}

.site-nav__link[aria-current="page"] {
  color: var(--color-navy);
  background: var(--color-gold);
  border-color: var(--color-gold);
  font-weight: bold;
}

.site-nav__link[aria-current="page"]::before {
  color: var(--color-navy);
}

/* ---------- 9. 移动导航按钮 ---------- */
.site-nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0.625rem;
  border: 1px solid rgba(212, 177, 6, 0.5);
  border-radius: var(--radius-sm);
  background: rgba(212, 177, 6, 0.08);
}

.site-nav-toggle:hover,
.site-nav-toggle[aria-expanded="true"] {
  border-color: var(--color-gold);
  background: rgba(212, 177, 6, 0.15);
}

.site-nav-toggle__line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-gold);
  border-radius: 1px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.site-nav-toggle__line + .site-nav-toggle__line {
  margin-top: 5px;
}

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

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

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

/* ---------- 10. 页脚 ---------- */
.site-footer {
  position: relative;
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.82);
  border-top: 4px solid var(--color-gold);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 5rem;
  height: 4px;
  background: var(--color-red);
}

.site-footer::after {
  content: "";
  position: absolute;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 8rem;
  height: 8rem;
  border: 1px solid rgba(212, 177, 6, 0.12);
  border-radius: 50%;
  pointer-events: none;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 2.5rem;
  padding: 3rem 0 2.5rem;
}

.site-footer__brand-name {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--color-white);
  letter-spacing: 0.05em;
  line-height: 1.3;
}

.site-footer__brand-tag {
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  margin: 0.2rem 0 1rem;
}

.site-footer__trust {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.65);
  border-left: 2px solid var(--color-gold);
  padding-left: 1rem;
  margin-top: 0.75rem;
  line-height: 1.8;
}

.site-footer__col {
  font-size: 0.9rem;
}

.site-footer__heading {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: bold;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid rgba(212, 177, 6, 0.25);
}

.site-footer__links li + li {
  margin-top: 0.45rem;
}

.site-footer__links a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.85rem;
  text-decoration: none;
  transition: color var(--transition-fast), padding-left var(--transition-fast);
}

.site-footer__links a:hover {
  color: var(--color-gold);
  padding-left: 0.25rem;
}

.site-footer__contact-line {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
}

.site-footer__contact-line + .site-footer__contact-line {
  margin-top: 0.5rem;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 1.25rem 0 1.5rem;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.55);
}

.site-footer__copyright {
  margin: 0;
}

.site-footer__icp {
  color: rgba(212, 177, 6, 0.8);
  margin: 0;
}

/* ---------- 11. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65em 1.5em;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: bold;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.btn:hover {
  text-decoration: none;
}

.btn--gold {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-navy);
  box-shadow: 0 2px 0 rgba(10, 31, 68, 0.2);
}

.btn--gold:hover {
  background: #e0c31e;
  border-color: #e0c31e;
  color: var(--color-navy);
  box-shadow: 0 4px 12px rgba(212, 177, 6, 0.35);
}

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

.btn--outline:hover {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn--ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--color-white);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-gold);
  color: var(--color-gold);
}

/* ---------- 12. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.85rem;
  color: var(--color-slate);
  padding: 1rem 0;
}

.breadcrumb a {
  color: var(--color-deep-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.breadcrumb__sep {
  color: var(--color-slate);
  opacity: 0.6;
}

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

/* ---------- 13. 网格 ---------- */
.grid {
  display: grid;
  gap: 2rem;
}

.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* ---------- 14. 信息标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2em 0.8em;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: bold;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--color-navy);
  color: var(--color-navy);
  border-radius: var(--radius-sm);
  background: transparent;
  line-height: 1.6;
  text-decoration: none;
}

.tag--gold {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-navy);
}

.tag--navy {
  background: var(--color-navy);
  border-color: var(--color-navy);
  color: var(--color-white);
}

.tag--red {
  background: var(--color-red);
  border-color: var(--color-red);
  color: var(--color-white);
}

.tag--ghost {
  border-color: rgba(255, 255, 255, 0.6);
  color: var(--color-white);
}

/* ---------- 15. 区块标题 ---------- */
.section-title {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.section-title__line {
  flex: 1;
  min-width: 2rem;
  height: 1px;
  background: linear-gradient(90deg, var(--color-gold) 0%, transparent 100%);
}

.section-title__line:last-child {
  background: linear-gradient(90deg, transparent 0%, var(--color-gold) 100%);
}

.section-title__text {
  font-family: var(--font-heading);
  font-size: clamp(1.375rem, 3vw, 1.875rem);
  font-weight: bold;
  color: var(--color-navy);
  white-space: nowrap;
  margin: 0;
}

.section-title--light .section-title__text {
  color: var(--color-white);
}

/* ---------- 16. 图片占位容器 ---------- */
.figure {
  position: relative;
  overflow: hidden;
  min-height: 160px;
  background: linear-gradient(135deg, var(--color-pale-gold) 0%, rgba(212, 177, 6, 0.12) 100%);
  border: 1px solid rgba(10, 31, 68, 0.08);
}

.figure--16-9 {
  aspect-ratio: 16 / 9;
}

.figure--4-3 {
  aspect-ratio: 4 / 3;
}

.figure--1-1 {
  aspect-ratio: 1 / 1;
}

.figure img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--color-deep-blue);
  opacity: 0.6;
}

.figure__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  color: var(--color-white);
  background: rgba(10, 31, 68, 0.75);
}

/* ---------- 17. 面板 ---------- */
.panel {
  background: var(--color-white);
  border: 1px solid rgba(10, 31, 68, 0.1);
  border-left: 3px solid var(--color-gold);
  padding: 1.25rem 1.5rem;
  box-shadow: 2px 2px 0 rgba(10, 31, 68, 0.04);
}

.panel--navy {
  background: var(--color-deep-blue);
  border-color: rgba(255, 255, 255, 0.1);
  border-left-color: var(--color-gold);
  color: rgba(255, 255, 255, 0.85);
}

.panel--pale {
  background: var(--color-pale-gold);
  border-color: rgba(212, 177, 6, 0.4);
  border-left-color: var(--color-gold);
}

/* ---------- 18. 数据表格 ---------- */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.table th {
  background: var(--color-navy);
  color: var(--color-white);
  text-align: left;
  font-weight: bold;
  padding: 0.6rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.table td {
  padding: 0.6rem 1rem;
  border: 1px solid rgba(10, 31, 68, 0.12);
}

.table tbody tr:nth-child(even) {
  background: rgba(241, 230, 163, 0.25);
}

/* ---------- 19. 移动端适配 ---------- */
@media (max-width: 1024px) {
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .site-footer__brand-col {
    grid-column: 1 / -1;
  }
}

@media (max-width: 879px) {
  .site-header__inner {
    gap: 0.75rem;
  }

  .site-nav-toggle {
    display: block;
    flex-shrink: 0;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-navy);
    border-bottom: 1px solid rgba(212, 177, 6, 0.3);
    box-shadow: 0 12px 24px rgba(10, 31, 68, 0.3);
    max-height: 0;
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    transition: max-height var(--transition-base), opacity var(--transition-base), visibility 0s linear var(--transition-base);
  }

  .site-nav[data-open] {
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
    opacity: 1;
    visibility: visible;
    transition: max-height var(--transition-base), opacity var(--transition-base), visibility 0s;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem 1.25rem 1.5rem;
    gap: 0;
  }

  .site-nav__link {
    padding: 0.75rem 1rem;
    border: 1px solid transparent;
    border-radius: 0;
    font-size: 0.95rem;
  }

  .site-nav__item + .site-nav__item .site-nav__link {
    border-top-color: rgba(255, 255, 255, 0.08);
  }

  .site-nav__link[aria-current="page"] {
    border-radius: var(--radius-sm);
  }
}

@media (max-width: 640px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 1.75rem;
    padding-top: 2.5rem;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .site-header__brand-name {
    font-size: 1rem;
  }

  .site-header__brand-tag {
    display: none;
  }

  .site-header__brand-mark {
    width: 2.25rem;
    height: 2.25rem;
    font-size: 1.1rem;
  }
}

/* ---------- 20. 降级动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  html {
    scroll-behavior: auto;
  }
}