/* ============================================================
   新莆京娱馆 · 共享站点样式 /assets/site.css
   层次：重置 → 变量 → 基础排版 → 布局 → 组件 → 头部 → 页脚
   ============================================================ */

/* ---------- 1. 重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 128px;
}

body, h1, h2, h3, h4, h5, p, ul, ol, li, figure, figcaption,
blockquote, dl, dd, table, th, td, details, summary {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img, svg, video { display: block; max-width: 100%; height: auto; }
table { border-collapse: collapse; border-spacing: 0; }
summary { cursor: pointer; }
summary::-webkit-details-marker { display: none; }

/* ---------- 2. 变量 ---------- */
:root {
  --obsidian: #0A0C10;
  --panel: #14181F;
  --iron: #1F242C;
  --gold: #C9A24D;
  --gold-hi: #EBCB85;
  --jade: #2EB694;
  --signal: #F08147;
  --mist: #EDEFF2;
  --slate: #8C939C;
  --hair: #5C4A24;
  --hair-soft: rgba(92, 74, 36, .62);
  --line: rgba(237, 239, 242, .10);
  --ink-on-gold: #0A0C10;

  --sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;

  --wrap: 1264px;
  --gut: clamp(16px, 4vw, 40px);
  --ease: cubic-bezier(.22, .61, .36, 1);
  --dur-fast: 120ms;
  --dur-base: 180ms;
  --dur-panel: 220ms;
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(201, 162, 77, .06) 0, rgba(201, 162, 77, 0) 320px),
    var(--obsidian);
  color: var(--mist);
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(201, 162, 77, .32); color: #FFFFFF; }

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

.xpj-h1 {
  font-size: clamp(38px, 7vw, 64px);
  font-weight: 900;
  letter-spacing: .04em;
  line-height: 1.12;
}

.xpj-h2 {
  font-size: clamp(26px, 4vw, 44px);
  font-weight: 900;
  letter-spacing: .04em;
  line-height: 1.2;
}

.xpj-h3 {
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1.3;
}

.xpj-h4 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .06em;
  line-height: 1.5;
}

.xpj-p {
  font-size: 16px;
  line-height: 1.8;
  max-width: 68ch;
  color: var(--mist);
}

.xpj-lead {
  font-size: 17px;
  line-height: 1.8;
  max-width: 68ch;
  color: var(--slate);
}

.xpj-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--slate);
}

.xpj-eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--gold);
  flex: none;
}

.xpj-num {
  font-family: var(--mono);
  letter-spacing: .06em;
  font-variant-numeric: tabular-nums;
}

.xpj-num--xl {
  display: block;
  font-family: var(--mono);
  font-size: clamp(56px, 12vw, 132px);
  font-weight: 500;
  line-height: .92;
  letter-spacing: .04em;
  color: var(--gold);
}

.xpj-rule {
  height: 1px;
  border: 0;
  background: var(--hair-soft);
  width: 100%;
}

/* ---------- 4. 布局 ---------- */
.xpj-container {
  width: min(100% - (var(--gut) * 2), var(--wrap));
  margin-inline: auto;
}

.xpj-section {
  padding: clamp(48px, 7vw, 96px) 0;
  border-top: 1px solid var(--line);
}

.xpj-section--tight { padding: clamp(32px, 4.5vw, 60px) 0; }

.xpj-grid {
  display: grid;
  gap: clamp(16px, 2.2vw, 26px);
  grid-template-columns: 1fr;
}

@media (min-width: 760px) {
  .xpj-grid--2 { grid-template-columns: repeat(2, 1fr); }
  .xpj-grid--3 { grid-template-columns: repeat(2, 1fr); }
  .xpj-grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1080px) {
  .xpj-grid--3 { grid-template-columns: repeat(3, 1fr); }
  .xpj-grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- 5. 通用组件 ---------- */
.xpj-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid var(--hair-soft);
  background: transparent;
  color: var(--mist);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .12em;
  line-height: 1.4;
  transition: border-color var(--dur-fast) var(--ease),
              color var(--dur-fast) var(--ease),
              background-color var(--dur-fast) var(--ease);
}

.xpj-btn:hover {
  border-color: var(--gold);
  color: var(--gold-hi);
}

.xpj-btn--gold {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-on-gold);
  font-weight: 700;
}

.xpj-btn--gold:hover {
  background: var(--gold-hi);
  border-color: var(--gold-hi);
  color: var(--ink-on-gold);
}

.xpj-btn--ghost {
  border-color: var(--line);
  color: var(--slate);
}

.xpj-btn--ghost:hover {
  border-color: var(--gold);
  color: var(--gold-hi);
}

.xpj-btn--sm {
  padding: 8px 14px;
  font-size: 12px;
  letter-spacing: .16em;
}

.xpj-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  color: var(--slate);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  line-height: 1.6;
}

.xpj-tag--ok { color: var(--jade); border-color: rgba(46, 182, 148, .42); }
.xpj-tag--warn { color: var(--signal); border-color: rgba(240, 129, 71, .42); }

.xpj-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 3px 10px;
  border: 1px solid var(--hair-soft);
  color: var(--jade);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  line-height: 1.6;
  white-space: nowrap;
}

.xpj-status__dot {
  width: 6px;
  height: 6px;
  flex: none;
  background: currentColor;
  box-shadow: 0 0 0 3px rgba(46, 182, 148, .16);
  transition: box-shadow var(--dur-base) var(--ease), opacity var(--dur-base) var(--ease);
}

.xpj-status--warn { color: var(--signal); }
.xpj-status--warn .xpj-status__dot { box-shadow: 0 0 0 3px rgba(240, 129, 71, .18); }

.xpj-card {
  position: relative;
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--panel);
  border: 1px solid var(--hair-soft);
  transition: border-color var(--dur-fast) var(--ease);
}

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

.xpj-card--iron { background: var(--iron); }

.xpj-card--accent::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: 34px;
  height: 1px;
  background: var(--gold);
}

.xpj-card__idx {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--gold);
}

.xpj-card__title {
  margin-top: 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .04em;
  line-height: 1.4;
}

.xpj-card__text {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

.xpj-panel {
  background: var(--panel);
  border: 1px solid var(--hair-soft);
}

.xpj-panel + .xpj-panel { border-top: 0; }

.xpj-panel__head {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px clamp(16px, 2.4vw, 24px);
  list-style: none;
  transition: background-color var(--dur-base) var(--ease);
}

.xpj-panel__head:hover { background: var(--iron); }

.xpj-panel[open] > .xpj-panel__head {
  background: var(--iron);
  border-bottom: 1px solid var(--line);
}

.xpj-panel__num {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--gold);
  flex: none;
}

.xpj-panel__title {
  flex: 1 1 auto;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .05em;
  line-height: 1.6;
}

.xpj-panel__sign {
  position: relative;
  width: 12px;
  height: 12px;
  flex: none;
}

.xpj-panel__sign::before,
.xpj-panel__sign::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 1px;
  background: var(--gold);
}

.xpj-panel__sign::after {
  transform: rotate(90deg);
  transition: transform var(--dur-panel) var(--ease);
}

.xpj-panel[open] .xpj-panel__sign::after { transform: rotate(0deg); }

.xpj-panel__body {
  padding: 18px clamp(16px, 2.4vw, 24px) 22px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--slate);
}

.xpj-table {
  width: 100%;
  font-size: 14px;
}

.xpj-table th,
.xpj-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.xpj-table th {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--slate);
}

.xpj-table td { color: var(--mist); }

.xpj-table tbody tr:nth-child(odd) { background: rgba(31, 36, 44, .52); }

.xpj-figure {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--iron);
  border: 1px solid var(--hair-soft);
}

.xpj-figure--tall { aspect-ratio: 4 / 5; }
.xpj-figure--wide { aspect-ratio: 21 / 9; }

.xpj-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.86) contrast(1.06) brightness(.94);
}

.xpj-figure figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate);
  background: linear-gradient(180deg, rgba(10, 12, 16, 0), rgba(10, 12, 16, .94));
}

.xpj-figure--frame::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(201, 162, 77, .3);
  pointer-events: none;
}

.xpj-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate);
}

.xpj-crumb a { color: var(--slate); transition: color var(--dur-base) var(--ease); }
.xpj-crumb a:hover { color: var(--gold-hi); }
.xpj-crumb__sep { color: var(--hair); }
.xpj-crumb [aria-current="page"] { color: var(--mist); }

.xpj-toc {
  display: grid;
  gap: 0;
  border-left: 1px solid var(--line);
}

.xpj-toc__link {
  display: flex;
  gap: 12px;
  margin-left: -1px;
  padding: 8px 0 8px 14px;
  border-left: 1px solid transparent;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
  transition: color var(--dur-base) var(--ease),
              border-color var(--dur-base) var(--ease);
}

.xpj-toc__link:hover { color: var(--mist); }

.xpj-toc__link[aria-current="true"] {
  color: var(--gold-hi);
  border-left-color: var(--gold);
}

/* ---------- 6. 头部 ---------- */
.xpj-skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 12px 20px;
  background: var(--gold);
  color: var(--ink-on-gold);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .12em;
}

.xpj-skip:focus { left: 12px; top: 12px; }

.xpj-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(10, 12, 16, .95);
  border-bottom: 1px solid var(--hair-soft);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.xpj-header__tier {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg,
    rgba(201, 162, 77, .13) 0%,
    rgba(201, 162, 77, .03) 44%,
    rgba(201, 162, 77, 0) 74%);
}

.xpj-header__tierinner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 34px;
}

.xpj-header__note {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--slate);
  white-space: nowrap;
}

.xpj-header__meta {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 22px);
  font-size: 12px;
}

.xpj-header__quick {
  position: relative;
  color: var(--slate);
  font-size: 12px;
  letter-spacing: .12em;
  transition: color var(--dur-base) var(--ease);
}

.xpj-header__quick::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 100%;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease);
}

.xpj-header__quick:hover { color: var(--gold-hi); }
.xpj-header__quick:hover::after { transform: scaleX(1); }

.xpj-header__barinner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 66px;
}

.xpj-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  flex: none;
}

.xpj-brand__key {
  position: relative;
  width: 22px;
  height: 22px;
  flex: none;
  border: 1px solid var(--gold);
}

.xpj-brand__key::before {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px solid rgba(201, 162, 77, .5);
}

.xpj-brand__key::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2px;
  height: 9px;
  background: var(--gold);
  transform: translate(-50%, -50%);
}

.xpj-brand__text { display: block; }

.xpj-brand__name {
  display: block;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: .1em;
  line-height: 1.2;
  color: var(--mist);
}

.xpj-brand__region {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .2em;
  line-height: 1.6;
  color: var(--slate);
}

.xpj-navtoggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--hair-soft);
  color: var(--mist);
  font-size: 12px;
  letter-spacing: .18em;
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}

.xpj-navtoggle:hover { border-color: var(--gold); color: var(--gold-hi); }

.xpj-navtoggle__bars {
  display: grid;
  gap: 4px;
  width: 16px;
  flex: none;
}

.xpj-navtoggle__bars span {
  display: block;
  height: 1px;
  background: var(--gold);
  transition: transform var(--dur-base) var(--ease), opacity var(--dur-base) var(--ease);
}

.xpj-navtoggle[aria-expanded="true"] .xpj-navtoggle__bars span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.xpj-navtoggle[aria-expanded="true"] .xpj-navtoggle__bars span:nth-child(2) { opacity: 0; }

.xpj-navtoggle[aria-expanded="true"] .xpj-navtoggle__bars span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.xpj-navtoggle__label { white-space: nowrap; }

.xpj-nav {
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  display: none;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  background: var(--panel);
  border-top: 1px solid var(--hair-soft);
  border-bottom: 1px solid var(--hair-soft);
}

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

.xpj-nav__list {
  width: min(100% - (var(--gut) * 2), var(--wrap));
  margin-inline: auto;
  padding: 6px 0 16px;
}

.xpj-nav__item { display: block; }

.xpj-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--mist);
  transition: color var(--dur-base) var(--ease);
}

.xpj-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease);
}

.xpj-nav__link:hover { color: var(--gold-hi); }
.xpj-nav__link:hover::after { transform: scaleX(1); }
.xpj-nav__link[aria-current="page"] { color: var(--gold-hi); }
.xpj-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.xpj-nav__num {
  flex: none;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--slate);
  transition: color var(--dur-base) var(--ease);
}

.xpj-nav__link:hover .xpj-nav__num,
.xpj-nav__link[aria-current="page"] .xpj-nav__num { color: var(--gold); }

.xpj-header__rail {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: var(--line);
  overflow: hidden;
}

.xpj-header__railfill {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--gold), var(--gold-hi));
}

@media (max-width: 767px) {
  .xpj-header__note { display: none; }
}

@media (max-width: 559px) {
  .xpj-header__quick { display: none; }
}

@media (min-width: 1000px) {
  .xpj-header__tierinner { min-height: 36px; }
  .xpj-header__barinner { min-height: 72px; }
  .xpj-navtoggle { display: none; }

  .xpj-nav {
    display: block;
    position: static;
    max-height: none;
    overflow: visible;
    background: none;
    border: 0;
  }

  .xpj-nav__list {
    display: flex;
    align-items: center;
    gap: clamp(4px, 1.5vw, 24px);
    width: auto;
    margin: 0;
    padding: 0;
  }

  .xpj-nav__link {
    padding: 10px 0;
    border-bottom: 0;
    font-size: 15px;
    letter-spacing: .06em;
  }
}

/* ---------- 7. 页脚 ---------- */
.xpj-footer {
  margin-top: clamp(56px, 8vw, 100px);
  background: var(--panel);
  border-top: 1px solid var(--hair-soft);
}

.xpj-footer__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 56px);
  padding: clamp(40px, 6vw, 72px) 0 0;
}

.xpj-footer__brand { border-top: 1px solid var(--hair); padding-top: 18px; }

.xpj-footer__mark {
  display: block;
  position: relative;
  width: 24px;
  height: 24px;
  border: 1px solid var(--gold);
}

.xpj-footer__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2px;
  height: 10px;
  background: var(--gold);
  transform: translate(-50%, -50%);
}

.xpj-footer__name {
  margin-top: 14px;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: .1em;
  line-height: 1.3;
}

.xpj-footer__desc {
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--slate);
}

.xpj-footer__seal {
  margin-top: 16px;
  max-width: 30ch;
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate);
}

.xpj-footer__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(22px, 3vw, 32px);
}

.xpj-footer__col {
  border-top: 1px solid var(--hair);
  padding-top: 16px;
  min-width: 0;
}

.xpj-footer__title {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .14em;
  line-height: 1.6;
  color: var(--mist);
}

.xpj-footer__idx {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--gold);
}

.xpj-footer__links {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.xpj-footer__link {
  position: relative;
  display: inline-block;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
  transition: color var(--dur-base) var(--ease);
}

.xpj-footer__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease);
}

.xpj-footer__link:hover { color: var(--gold-hi); }
.xpj-footer__link:hover::after { transform: scaleX(1); }

.xpj-footer__contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: clamp(36px, 5vw, 56px);
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.xpj-footer__label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--slate);
}

.xpj-footer__value {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
  word-break: break-word;
}

.xpj-footer__note {
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate);
  max-width: 62ch;
}

.xpj-footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 24px;
  padding: 18px 0 30px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--slate);
}

.xpj-footer__legalgroup {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
}

.xpj-footer__copy { color: var(--slate); }

.xpj-footer__dot {
  width: 4px;
  height: 4px;
  background: var(--hair);
  flex: none;
}

.xpj-footer__legal-link {
  position: relative;
  color: var(--gold);
  transition: color var(--dur-base) var(--ease);
}

.xpj-footer__legal-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease);
}

.xpj-footer__legal-link:hover { color: var(--gold-hi); }
.xpj-footer__legal-link:hover::after { transform: scaleX(1); }

@media (min-width: 640px) {
  .xpj-footer__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .xpj-footer__contact { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 900px) {
  .xpj-footer__top { grid-template-columns: minmax(240px, 300px) 1fr; gap: clamp(32px, 5vw, 72px); }
  .xpj-footer__contact { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* ---------- 8. 回到顶部 ---------- */
.xpj-totop {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 60;
  display: grid;
  place-items: center;
  gap: 0;
  width: 48px;
  height: 48px;
  padding: 0;
  background: rgba(20, 24, 31, .94);
  border: 1px solid var(--hair-soft);
  color: var(--gold);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base) var(--ease),
              visibility var(--dur-base) var(--ease),
              border-color var(--dur-fast) var(--ease),
              color var(--dur-fast) var(--ease);
}

.xpj-totop[data-visible] { opacity: 1; visibility: visible; }
.xpj-totop:hover { border-color: var(--gold); color: var(--gold-hi); }

.xpj-totop__text {
  display: block;
  font-size: 9px;
  letter-spacing: .14em;
  color: var(--slate);
}

/* ---------- 9. 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

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