/* ==========================================================================
   尊龙游艺会馆 · 全站共享样式 /assets/site.css
   夜幕深棕黑 · 唐卡朱红 · 鎏金 · 高原靛蓝 · 松石绿 · 霓虹青
   ========================================================================== */

/* ---------- 1. 变量 ---------- */
:root {
  --ink: #14100F;
  --ink-2: #1B1614;
  --indigo: #1B2A4A;
  --maroon: #4A1F1A;
  --cream: #F2E8D5;
  --paper: #FFF8EA;
  --red: #C8342B;
  --gold: #D8A63A;
  --green: #2E8C86;
  --neon: #6FD3C7;
  --smoke: #6B625C;

  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --header-h: 98px;
  --maxw: 1200px;
  --gutter: clamp(18px, 4vw, 48px);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 20px);
}

body,
h1, h2, h3, h4, h5,
p, figure, blockquote, dl, dd, ul, ol {
  margin: 0;
}

ul[class],
ol[class] {
  list-style: none;
  padding: 0;
}

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

a { color: inherit; }

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

table { border-collapse: collapse; }

::selection {
  background: var(--gold);
  color: #1a1208;
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100%;
  background-color: var(--ink);
  background-image:
    radial-gradient(1000px 620px at 88% -12%, rgba(200, 52, 43, .18), transparent 70%),
    radial-gradient(900px 720px at -12% 18%, rgba(27, 42, 74, .55), transparent 70%);
  color: rgba(242, 232, 213, .9);
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.2;
  color: var(--paper);
}

p { text-wrap: pretty; }

a { text-decoration-thickness: 1px; text-underline-offset: 3px; }

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- 4. 布局容器 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: clamp(48px, 8vw, 104px);
  position: relative;
}

.section--cream {
  background: var(--cream);
  color: #241b16;
}

.section--cream .display-title,
.section--cream .section-title { color: var(--ink); }

.section--cream .lede { color: #3a2f28; }

.section--cream .eyebrow { color: var(--red); }

.section--cream .stat-num { color: var(--red); }

.section--cream .stat-label { color: var(--smoke); }

.section--cream .rule {
  background: linear-gradient(90deg, rgba(200, 52, 43, .55), rgba(216, 166, 58, .35), transparent);
}

.section--indigo {
  background: linear-gradient(160deg, #1B2A4A 0%, #16203a 60%, #14100F 100%);
}

.grid {
  display: grid;
  gap: clamp(18px, 2.6vw, 32px);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--split { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }

.stack > * + * { margin-top: clamp(14px, 2vw, 24px); }

/* ---------- 5. 文字与标注 ---------- */
.display-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 6vw, 88px);
  line-height: 1.06;
  letter-spacing: -.01em;
  color: var(--paper);
}

.section-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.6vw, 44px);
  line-height: 1.18;
  letter-spacing: .01em;
  color: var(--paper);
}

.lede {
  max-width: 62ch;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.85;
  color: rgba(242, 232, 213, .82);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .26em;
  color: var(--gold);
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
  opacity: .7;
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}

.vnote {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 12px;
  letter-spacing: .28em;
  color: var(--gold);
  opacity: .85;
}

.tick-scale {
  height: 10px;
  color: var(--gold);
  background-image: repeating-linear-gradient(90deg, currentColor 0 1px, transparent 1px 12px);
  opacity: .38;
}

.rule {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, rgba(216, 166, 58, .7), rgba(216, 166, 58, .18), transparent);
}

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid rgba(216, 166, 58, .5);
  border-radius: 0;
  background: transparent;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: .12em;
  text-decoration: none;
  cursor: pointer;
  transition: background .22s var(--ease), border-color .22s var(--ease),
              color .22s var(--ease), box-shadow .22s var(--ease);
}

.btn--gold {
  background: linear-gradient(180deg, #D8A63A, #B9862A);
  border-color: var(--gold);
  color: #1a1208;
  font-weight: 700;
}

.btn--gold:hover,
.btn--gold:focus-visible {
  background: linear-gradient(180deg, #E5B64D, #C79330);
  box-shadow: 0 0 0 1px rgba(216, 166, 58, .55), 0 14px 30px -16px rgba(216, 166, 58, .9);
}

.btn--red {
  background: var(--red);
  border-color: var(--red);
  color: var(--paper);
  font-weight: 700;
}

.btn--red:hover,
.btn--red:focus-visible {
  background: #d94339;
  box-shadow: 0 14px 30px -18px rgba(200, 52, 43, .95);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(216, 166, 58, .08);
}

.btn--sm {
  padding: 8px 14px;
  font-size: 13px;
  letter-spacing: .08em;
}

/* ---------- 7. 组件：标签 / 框景 / 卡片 / 数据 ---------- */
.exhibit-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border: 1px solid rgba(216, 166, 58, .38);
  background: rgba(20, 16, 15, .55);
  color: var(--gold);
  font-size: 12px;
  letter-spacing: .2em;
  line-height: 1.6;
}

.exhibit-label::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--gold);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border: 1px solid rgba(216, 166, 58, .45);
  color: var(--gold);
  font-size: 12px;
  letter-spacing: .14em;
  line-height: 1.7;
}

.tag--red {
  border-color: rgba(200, 52, 43, .65);
  color: #e5736b;
  background: rgba(200, 52, 43, .14);
}

.tag--gold {
  border-color: rgba(216, 166, 58, .65);
  color: var(--gold);
  background: rgba(216, 166, 58, .12);
}

.tag--green {
  border-color: rgba(46, 140, 134, .7);
  color: var(--neon);
  background: rgba(46, 140, 134, .16);
}

.frame {
  position: relative;
  padding: clamp(18px, 3vw, 40px);
  border: 1px solid rgba(216, 166, 58, .32);
  background: rgba(27, 42, 74, .18);
}

.frame::before,
.frame::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 1px solid var(--gold);
  pointer-events: none;
}

.frame::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.frame::after {
  right: -1px;
  bottom: -1px;
  border-top: 0;
  border-left: 0;
}

.card {
  position: relative;
  padding: clamp(18px, 2.6vw, 28px);
  border: 1px solid rgba(216, 166, 58, .22);
  background: linear-gradient(180deg, rgba(74, 31, 26, .55), rgba(20, 16, 15, .6));
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}

.card:hover,
.card:focus-within {
  border-color: rgba(216, 166, 58, .6);
  box-shadow: 0 0 0 1px rgba(216, 166, 58, .18), 0 22px 44px -32px #000;
}

.stat {
  display: grid;
  gap: 6px;
  align-content: start;
}

.stat-num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 12px;
  letter-spacing: .2em;
  color: rgba(242, 232, 213, .6);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
  line-height: 1.7;
}

.data-table caption {
  caption-side: top;
  padding-bottom: 12px;
  text-align: left;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--gold);
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(216, 166, 58, .2);
}

.data-table thead th {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--gold);
  border-bottom-color: rgba(216, 166, 58, .45);
}

.data-table tbody tr:nth-child(even) {
  background: rgba(74, 31, 26, .28);
}

.data-table tbody td:first-child {
  font-family: var(--font-mono);
  color: var(--gold);
  white-space: nowrap;
}

/* ---------- 8. 图片容器基础规则 ---------- */
.media-figure {
  margin: 0;
  display: grid;
  gap: 10px;
}

.media {
  position: relative;
  display: block;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 4 / 3;
  border: 1px solid rgba(216, 166, 58, .28);
  background-color: #1a1512;
  background-image:
    radial-gradient(120% 90% at 20% 10%, rgba(200, 52, 43, .22), transparent 62%),
    radial-gradient(100% 80% at 85% 92%, rgba(46, 140, 134, .2), transparent 64%);
}

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .5;
  background-image: repeating-linear-gradient(90deg, rgba(216, 166, 58, .16) 0 1px, transparent 1px 40px);
}

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

.media--wide { aspect-ratio: 16 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }

.media-caption {
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: .08em;
  color: rgba(242, 232, 213, .55);
}

.section--cream .media-caption { color: var(--smoke); }

/* ---------- 9. 面包屑 ---------- */
.breadcrumb {
  font-size: 12.5px;
  letter-spacing: .12em;
  color: rgba(242, 232, 213, .55);
}

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

.breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(216, 166, 58, .55);
}

.breadcrumb a { text-decoration: none; }

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

.breadcrumb [aria-current="page"] { color: var(--cream); }

.section--cream .breadcrumb { color: var(--smoke); }

.section--cream .breadcrumb [aria-current="page"] { color: var(--ink); }

/* ---------- 10. 滚动显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

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

/* ---------- 11. 复制轻提示 ---------- */
.copy-toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 400;
  max-width: calc(100vw - 40px);
  padding: 12px 20px;
  border: 1px solid rgba(216, 166, 58, .6);
  background: rgba(20, 16, 15, .96);
  color: var(--paper);
  font-size: 14px;
  letter-spacing: .06em;
  opacity: 0;
  transform: translate(-50%, 16px);
  pointer-events: none;
  transition: opacity .25s var(--ease), transform .25s var(--ease);
}

.copy-toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- 12. 跳转链接 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  padding: 10px 16px;
  background: var(--gold);
  color: #1a1208;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform .2s var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
}

/* ---------- 13. 头部 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  color: var(--cream);
  background: rgba(20, 16, 15, .96);
  border-bottom: 1px solid rgba(216, 166, 58, .28);
  transition: background .25s var(--ease), border-color .25s var(--ease),
              box-shadow .25s var(--ease);
}

.site-header[data-state="top"] {
  background: linear-gradient(180deg, rgba(20, 16, 15, .8) 0%, rgba(20, 16, 15, .38) 58%, rgba(20, 16, 15, 0) 100%);
  border-bottom-color: transparent;
  box-shadow: none;
}

.site-header[data-state="solid"] {
  background: rgba(20, 16, 15, .97);
  border-bottom-color: rgba(216, 166, 58, .34);
  box-shadow: 0 22px 44px -34px #000;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* 顶部刻度栏 */
.header-rail {
  border-bottom: 1px solid rgba(216, 166, 58, .16);
}

.rail-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 8px;
  font-size: 11px;
  line-height: 1.2;
  letter-spacing: .18em;
  color: rgba(242, 232, 213, .55);
}

.rail-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.rail-dot {
  width: 5px;
  height: 5px;
  flex: 0 0 auto;
  background: var(--green);
  box-shadow: 0 0 8px var(--neon);
}

/* 主栏 */
.header-inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2.4vw, 32px);
  min-height: 68px;
  padding-block: 10px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  border: 1px solid rgba(216, 166, 58, .55);
  background: radial-gradient(circle at 30% 20%, rgba(200, 52, 43, .38), rgba(20, 16, 15, 0) 72%);
  color: var(--gold);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  line-height: 1;
  box-shadow: inset 0 0 0 3px rgba(20, 16, 15, .65), inset 0 0 0 4px rgba(216, 166, 58, .22);
}

.brand-text {
  display: grid;
  gap: 2px;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.2;
  letter-spacing: .04em;
  color: var(--paper);
}

.brand-tag {
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: .22em;
  color: rgba(242, 232, 213, .58);
}

/* 导航 */
.site-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.6vw, 24px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-item { display: block; }

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 10px 2px;
  color: rgba(242, 232, 213, .78);
  font-size: 15px;
  letter-spacing: .06em;
  text-decoration: none;
  transition: color .2s var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .25s var(--ease), height .25s var(--ease), background-color .25s var(--ease);
}

.nav-link:hover,
.nav-link:focus-visible { color: var(--paper); }

.nav-link:hover::after,
.nav-link:focus-visible::after { transform: scaleX(1); }

.nav-link[aria-current="page"] { color: var(--paper); }

.nav-link[aria-current="page"]::after {
  height: 2px;
  background: var(--red);
  transform: scaleX(1);
}

.nav-index {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .02em;
  color: var(--gold);
  opacity: .85;
}

.nav-aside { display: none; }

.nav-aside-label {
  font-size: 11px;
  letter-spacing: .26em;
  color: var(--gold);
}

.nav-aside-line {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(242, 232, 213, .72);
}

.nav-aside-cta {
  margin-top: 14px;
  justify-self: start;
}

/* 右侧动作区 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.header-cta { white-space: nowrap; }

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid rgba(216, 166, 58, .45);
  background: transparent;
  color: var(--paper);
  font-size: 12px;
  letter-spacing: .2em;
  cursor: pointer;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
}

.nav-toggle-bars {
  display: grid;
  gap: 4px;
  width: 20px;
}

.nav-toggle-bar {
  display: block;
  height: 1px;
  background: currentColor;
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}

.site-header[data-open="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.site-header[data-open="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }

.site-header[data-open="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.nav-toggle-label { white-space: nowrap; }

/* 阅读进度光带 */
.scroll-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  transform: scaleX(var(--sp, 0));
  transform-origin: left center;
  background: linear-gradient(90deg, var(--red), var(--gold) 55%, var(--neon));
  transition: transform .12s linear;
}

/* ---------- 14. 页脚 ---------- */
.site-footer {
  position: relative;
  padding-top: clamp(36px, 6vw, 76px);
  background-color: var(--ink);
  background-image:
    radial-gradient(760px 380px at 8% 0%, rgba(74, 31, 26, .75), transparent 70%),
    radial-gradient(700px 420px at 96% 12%, rgba(27, 42, 74, .7), transparent 72%);
  color: var(--cream);
  border-top: 1px solid rgba(216, 166, 58, .3);
}

.footer-crest {
  height: 14px;
  background-image: repeating-linear-gradient(90deg, rgba(216, 166, 58, .55) 0 1px, transparent 1px 22px);
  opacity: .45;
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  padding-block: clamp(30px, 4vw, 56px);
}

.footer-brand {
  display: grid;
  align-content: start;
  gap: 10px;
}

.footer-brand-line {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.2;
  letter-spacing: .04em;
  color: var(--paper);
}

.footer-brand-sub {
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--gold);
}

.footer-brand-summary {
  max-width: 30ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(242, 232, 213, .66);
}

.footer-stamp {
  justify-self: start;
  margin-top: 6px;
  padding: 6px 12px;
  border: 1px solid rgba(216, 166, 58, .35);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .24em;
  color: rgba(216, 166, 58, .8);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 2.4vw, 32px);
  align-content: start;
}

.footer-col { display: grid; align-content: start; gap: 14px; }

.footer-col-title {
  font-family: var(--font-body);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .24em;
  color: var(--gold);
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(216, 166, 58, .22);
}

.footer-links {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  letter-spacing: .04em;
  color: rgba(242, 232, 213, .76);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.footer-link::before {
  content: "";
  width: 10px;
  height: 1px;
  background: var(--gold);
  opacity: .55;
  transition: width .25s var(--ease), background-color .25s var(--ease);
}

.footer-link:hover,
.footer-link:focus-visible { color: var(--paper); }

.footer-link:hover::before,
.footer-link:focus-visible::before {
  width: 20px;
  background: var(--neon);
}

.footer-contact {
  display: grid;
  align-content: start;
  gap: 14px;
}

.footer-contact-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-contact-item {
  display: grid;
  gap: 2px;
}

.contact-key {
  font-size: 10.5px;
  letter-spacing: .24em;
  color: rgba(216, 166, 58, .85);
}

.contact-val {
  font-size: 14.5px;
  line-height: 1.65;
  color: rgba(242, 232, 213, .84);
  word-break: break-word;
}

.contact-val--num {
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: .06em;
  color: var(--paper);
}

.footer-legal {
  margin-top: clamp(8px, 2vw, 20px);
  padding-block: 22px;
  border-top: 1px solid rgba(242, 232, 213, .12);
  background: rgba(0, 0, 0, .28);
}

.legal-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 28px;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(242, 232, 213, .55);
}

.legal-copy { letter-spacing: .08em; }

.legal-note { color: rgba(216, 166, 58, .82); }

.legal-icp {
  font-family: var(--font-mono);
  letter-spacing: .04em;
}

/* ---------- 15. 响应式 ---------- */
@media (max-width: 1080px) {
  .nav-list { gap: 10px; }
  .nav-index { display: none; }
  .nav-link { font-size: 14px; }
}

@media (max-width: 1000px) {
  .footer-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
  .footer-contact { grid-column: 1 / -1; }
  .footer-contact-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  :root { --header-h: 62px; }

  .header-rail { display: none; }

  .header-inner { min-height: 62px; padding-block: 9px; }

  .header-cta { display: none; }

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

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    display: none;
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
    padding: 20px var(--gutter) 36px;
    background: linear-gradient(180deg, rgba(20, 16, 15, .99) 0%, rgba(27, 42, 74, .99) 100%);
    border-top: 1px solid rgba(216, 166, 58, .22);
    border-bottom: 1px solid rgba(216, 166, 58, .34);
    box-shadow: 0 44px 64px -44px #000;
  }

  .site-header[data-open="true"] .site-nav { display: block; }

  body[data-nav-open="true"] { overflow: hidden; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-item { border-bottom: 1px solid rgba(242, 232, 213, .1); }

  .nav-link {
    display: flex;
    width: 100%;
    justify-content: flex-start;
    gap: 14px;
    padding: 15px 0;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 21px;
    letter-spacing: .06em;
    color: rgba(242, 232, 213, .9);
  }

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

  .nav-link[aria-current="page"] { color: var(--gold); }

  .nav-index {
    display: inline-block;
    font-size: 11px;
    align-self: center;
  }

  .nav-aside {
    display: grid;
    gap: 4px;
    margin-top: 24px;
    padding-top: 22px;
    border-top: 1px solid rgba(216, 166, 58, .28);
  }

  .grid--2,
  .grid--3,
  .grid--split { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 760px) {
  body { font-size: 16px; }

  .brand-tag { display: none; }

  .data-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}

@media (max-width: 640px) {
  .footer-inner { grid-template-columns: minmax(0, 1fr); }
  .footer-contact-list { grid-template-columns: minmax(0, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .legal-inner { flex-direction: column; align-items: flex-start; }
  .brand-mark { width: 38px; height: 38px; font-size: 17px; }
}

/* ---------- 16. 动效降级 ---------- */
@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: 0ms !important;
  }

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

  .scroll-progress { transition: none; }
}