/* ==========================================================================
   美高梅中文版 · 玩法数据档案
   共享样式表 /assets/site.css
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --emerald: #0B3D2E;
  --emerald-2: #14553F;
  --emerald-3: #0E4837;
  --gold: #D9B26A;
  --gold-bright: #F0D9A6;
  --gold-line: #8C6E3A;
  --ink: #111614;
  --warm: #F7F3EA;
  --cyan: #3DE0D0;
  --coral: #FF6B5A;
  --sage: #4A6B5E;

  --hairline: rgba(140, 110, 58, .42);
  --hairline-soft: rgba(140, 110, 58, .22);
  --row-alt: rgba(217, 178, 106, .07);

  --font-head: "Space Grotesk", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Serif SC", "Songti SC", "Source Han Serif SC", "SimSun", serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;

  --wrap: 1200px;
  --gutter: clamp(18px, 4vw, 40px);
  --band-y: clamp(56px, 8vw, 112px);
  --gap: clamp(16px, 2vw, 28px);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

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

body {
  margin: 0;
  background-color: var(--emerald);
  color: var(--warm);
  font-family: var(--font-body);
  font-size: clamp(16px, 0.4vw + 15px, 17.5px);
  line-height: 1.78;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

a { color: inherit; }

ul, ol { padding-left: 1.1em; }

[id] { scroll-margin-top: 132px; }

/* ---------- 3. 排版 ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  color: inherit;
  margin: 0 0 .62em;
  line-height: 1.18;
  letter-spacing: -.01em;
}

h1 { font-size: clamp(34px, 5.4vw, 64px); font-weight: 800; line-height: 1.06; letter-spacing: -.02em; }
h2 { font-size: clamp(24px, 3vw, 40px); font-weight: 700; line-height: 1.16; }
h3 { font-size: clamp(19px, 1.6vw, 24px); font-weight: 600; line-height: 1.32; }
h4 { font-size: 17px; font-weight: 600; letter-spacing: .02em; }

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

strong { font-weight: 600; }

hr { border: 0; height: 1px; background: var(--hairline); margin: 0; }

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

/* ---------- 4. 焦点与无障碍 ---------- */
a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -120px;
  z-index: 200;
  display: inline-block;
  padding: 12px 22px;
  background: var(--gold);
  color: var(--emerald);
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
  text-decoration: none;
  transition: top .22s var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible {
  top: 12px;
}

/* ---------- 5. 页头 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--emerald);
  color: var(--warm);
  border-bottom: 1px solid var(--hairline);
}

.progress-line {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 3;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--cyan), var(--gold));
}

.header-inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.masthead {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 14px;
  padding-block: clamp(14px, 2.2vw, 24px);
  border-bottom: 1px solid var(--hairline-soft);
}

.masthead-aside {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--sage);
  display: flex;
  align-items: center;
  gap: 9px;
  white-space: nowrap;
}

.masthead-aside--left { grid-column: 1; justify-self: start; }
.masthead-aside--right { grid-column: 3; justify-self: end; }

.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(61, 224, 208, .16);
  flex: none;
}

.masthead-brand {
  grid-column: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding-inline: clamp(8px, 3vw, 44px);
  text-decoration: none;
  color: inherit;
  text-align: center;
}

.masthead-mark {
  display: block;
  font-family: var(--font-head);
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: .1em;
  white-space: nowrap;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--gold);
}

.masthead-tagline {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .34em;
  color: var(--gold);
}

.desk-index-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid var(--gold-line);
  color: var(--gold-bright);
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .1em;
  text-decoration: none;
  transition: background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}

.desk-index-link:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--emerald);
}

.desk-index-arrow {
  display: inline-block;
  transition: transform .3s var(--ease);
}

.desk-index-link:hover .desk-index-arrow { transform: translateX(4px); }

.nav-toggle {
  display: none;
  grid-column: 3;
  justify-self: end;
  width: 44px;
  height: 40px;
  padding: 0;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--gold-line);
  color: var(--gold-bright);
  cursor: pointer;
  transition: border-color .25s var(--ease), background .25s var(--ease);
}

.nav-toggle:hover { border-color: var(--gold); background: rgba(217, 178, 106, .1); }

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 18px;
  height: 12px;
}

.nav-toggle-bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}

.nav-toggle-bars span:nth-child(1) { top: 0; }
.nav-toggle-bars span:nth-child(2) { top: 5.25px; }
.nav-toggle-bars span:nth-child(3) { top: 10.5px; }

.site-header[data-open] .nav-toggle-bars span:nth-child(1) { transform: translateY(5.25px) rotate(45deg); }
.site-header[data-open] .nav-toggle-bars span:nth-child(2) { opacity: 0; }
.site-header[data-open] .nav-toggle-bars span:nth-child(3) { transform: translateY(-5.25px) rotate(-45deg); }

.primary-nav { position: static; }

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: clamp(12px, 3.4vw, 44px);
  padding-block: 13px;
}

.nav-list a {
  position: relative;
  display: inline-block;
  padding: 6px 2px 9px;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .08em;
  color: rgba(247, 243, 234, .76);
  text-decoration: none;
  transition: color .25s var(--ease);
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 0;
  background: var(--gold);
  transition: width .3s var(--ease), background-color .25s var(--ease);
}

.nav-list a:hover { color: var(--warm); }
.nav-list a:hover::after { width: 100%; }

.nav-list a[aria-current="page"] { color: var(--gold-bright); }
.nav-list a[aria-current="page"]::after { width: 100%; background: var(--cyan); }

/* ---------- 6. 页脚 ---------- */
.site-footer {
  background: var(--ink);
  color: var(--warm);
  border-top: 1px solid var(--gold-line);
}

.footer-inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(44px, 7vw, 84px) var(--gutter) clamp(22px, 3vw, 34px);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(280px, 1.35fr);
  gap: clamp(28px, 5vw, 72px);
  padding-bottom: clamp(30px, 4vw, 52px);
  border-bottom: 1px solid var(--hairline-soft);
}

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

.footer-brand {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--warm);
}

.footer-tagline {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .32em;
  color: var(--gold);
}

.footer-note {
  margin: 0;
  max-width: 36ch;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(247, 243, 234, .58);
}

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

.footer-label {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .28em;
  color: var(--gold-line);
}

.footer-cols {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(118px, 1fr));
  gap: 0 clamp(16px, 2vw, 28px);
}

.footer-cols a {
  display: block;
  padding: 10px 0;
  border-bottom: 1px solid rgba(140, 110, 58, .2);
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .06em;
  color: rgba(247, 243, 234, .82);
  text-decoration: none;
  transition: color .25s var(--ease), border-color .25s var(--ease), padding-left .25s var(--ease);
}

.footer-cols a:hover {
  color: var(--gold-bright);
  border-color: var(--gold);
  padding-left: 8px;
}

.footer-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: clamp(20px, 3vw, 40px);
  padding-block: clamp(26px, 3.4vw, 46px);
  border-bottom: 1px solid var(--hairline-soft);
}

.footer-contact,
.footer-status,
.footer-legal { min-width: 0; }

.footer-line {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(247, 243, 234, .7);
  word-break: break-word;
}

.footer-line:last-child { margin-bottom: 0; }

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 32px;
  padding-top: clamp(18px, 2.4vw, 26px);
}

.footer-copy {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: rgba(247, 243, 234, .5);
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: rgba(247, 243, 234, .66);
  text-decoration: none;
  transition: color .25s var(--ease);
}

.footer-links a:hover { color: var(--gold-bright); }

/* ---------- 7. 布局与原语 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.band { padding-block: var(--band-y); }
.band--tight { padding-block: clamp(32px, 4.5vw, 60px); }
.band--tall { padding-block: clamp(72px, 11vw, 150px); }

.band--warm { background-color: var(--warm); color: var(--ink); }
.band--emerald { background-color: var(--emerald); color: var(--warm); }
.band--emerald-2 { background-color: var(--emerald-2); color: var(--warm); }
.band--ink { background-color: var(--ink); color: var(--warm); }

.rule { height: 1px; background: var(--hairline); border: 0; margin: 0; }
.band--warm .rule { background: rgba(140, 110, 58, .35); }

.grid { display: grid; gap: var(--gap); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--gold);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .28em;
  color: var(--gold);
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  flex: none;
}

.band--warm .eyebrow { color: var(--gold-line); }

.lead {
  font-size: clamp(17px, 1.2vw, 20px);
  line-height: 1.72;
  color: rgba(247, 243, 234, .84);
  max-width: 62ch;
}

.band--warm .lead { color: rgba(17, 22, 20, .78); }

/* ---------- 8. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border: 1px solid transparent;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .08em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}

.btn--gold { background: var(--gold); border-color: var(--gold); color: var(--emerald); }
.btn--gold:hover { background: var(--gold-bright); border-color: var(--gold-bright); }

.btn--ghost { background: transparent; border-color: var(--gold-line); color: var(--gold-bright); }
.btn--ghost:hover { background: rgba(217, 178, 106, .12); border-color: var(--gold); }

.btn--dark { background: var(--emerald); border-color: var(--emerald); color: var(--warm); }
.btn--dark:hover { background: var(--emerald-2); border-color: var(--gold-line); }

/* ---------- 9. 面包屑 ---------- */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--sage);
}

.band--warm .breadcrumb { color: var(--gold-line); }

.breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.breadcrumb li { display: inline-flex; align-items: center; gap: 8px; }

.breadcrumb li + li::before {
  content: "/";
  opacity: .45;
}

.breadcrumb a { color: inherit; text-decoration: none; }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb [aria-current="page"] { color: var(--gold); }

/* ---------- 10. 卡片与数据块 ---------- */
.card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 2.4vw, 32px);
  background: var(--emerald-2);
  border: 1px solid var(--gold-line);
  color: var(--warm);
  transition: border-color .25s var(--ease), background-color .25s var(--ease);
}

.card:hover { border-color: var(--gold); }

.card--light {
  background: var(--warm);
  border-color: rgba(140, 110, 58, .5);
  color: var(--ink);
}

.card--light:hover { border-color: var(--gold-line); }

.card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hairline-soft);
}

.card--light .card__head { border-bottom-color: rgba(140, 110, 58, .3); }

.card__body { flex: 1 1 auto; }
.card__body p:last-child { margin-bottom: 0; }

.card__foot {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--hairline-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--sage);
}

.stat { display: flex; flex-direction: column; }

.stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--gold);
}

.band--warm .stat__value { color: var(--gold-line); }

.stat__label {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--sage);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--gold);
  white-space: nowrap;
}

.tag--cyan { color: var(--cyan); }
.tag--coral { color: var(--coral); }
.tag--sage { color: var(--sage); }

/* ---------- 11. 档案表格 ---------- */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
}

.data-table caption {
  text-align: left;
  padding-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--sage);
}

.data-table th {
  padding: 12px 14px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--gold);
  border-bottom: 1px solid var(--gold-line);
  white-space: nowrap;
}

.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--hairline-soft);
  vertical-align: top;
}

.data-table tbody tr:nth-child(even) { background: var(--row-alt); }
.data-table tbody tr:hover { background: rgba(217, 178, 106, .13); }

/* ---------- 12. 折叠面板 ---------- */
.fold {
  border: 1px solid var(--gold-line);
  margin-bottom: -1px;
  background: transparent;
}

.fold summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
}

.fold summary::-webkit-details-marker { display: none; }

.fold summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--gold);
}

.fold[open] summary::after { content: "\2212"; }
.fold[open] summary { border-bottom: 1px solid var(--hairline-soft); }

.fold__body {
  padding: 16px 18px 20px;
  font-size: 15px;
  line-height: 1.75;
  opacity: .86;
}

/* ---------- 13. 图片容器 ---------- */
.media-frame {
  position: relative;
  display: block;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 10;
  background-color: var(--emerald-2);
  border: 1px solid var(--gold-line);
}

.media-frame img,
.media-frame svg,
.media-frame video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--square { aspect-ratio: 1 / 1; }
.media-frame--tall { aspect-ratio: 3 / 4; }

.media-frame[data-empty]::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(217, 178, 106, .12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(217, 178, 106, .12) 1px, transparent 1px);
  background-size: 100% 32px, 32px 100%;
}

.media-frame__label {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  padding: 7px 12px;
  background: var(--emerald);
  color: var(--gold-bright);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .2em;
}

/* ---------- 14. 滚动显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}

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

/* ---------- 15. 响应式：平板与手机 ---------- */
@media (max-width: 900px) {
  .masthead {
    grid-template-columns: 1fr auto 1fr;
    gap: 10px;
  }

  .masthead-aside { display: none; }

  .masthead-brand { padding-inline: 4px; }

  .masthead-mark {
    font-size: clamp(19px, 5vw, 24px);
    letter-spacing: .06em;
  }

  .masthead-tagline { font-size: 9px; letter-spacing: .28em; }

  .nav-toggle { display: inline-flex; }

  .primary-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    max-height: 0;
    overflow: hidden;
    visibility: hidden;
    background: var(--emerald-2);
    border-top: 1px solid var(--gold-line);
    border-bottom: 1px solid var(--gold-line);
    transition: max-height .35s var(--ease), visibility .35s linear;
  }

  .site-header[data-open] .primary-nav {
    max-height: 72vh;
    overflow-y: auto;
    visibility: visible;
    transition: max-height .35s var(--ease), visibility 0s linear;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px var(--gutter) 18px;
  }

  .nav-list li { border-bottom: 1px solid var(--hairline-soft); }
  .nav-list li:last-child { border-bottom: 0; }

  .nav-list a {
    display: block;
    padding: 15px 2px;
    font-size: 16px;
  }

  .nav-list a::after { display: none; }
  .nav-list a:hover { color: var(--gold-bright); }
  .nav-list a[aria-current="page"] { color: var(--cyan); }

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

@media (max-width: 560px) {
  [id] { scroll-margin-top: 108px; }

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

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

  .footer-links { gap: 16px; }
}

/* ---------- 16. 减少动态效果 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    transition-delay: 0s !important;
  }

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