/* ============================================================
   问鼎娱乐会馆 · /assets/site.css
   暗夜会馆 + 金色导航线 · 共享外壳与基础组件
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, ol, ul, pre {
  margin: 0;
}

ul, ol { padding: 0; }

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

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

table { border-collapse: collapse; }

::selection { background: var(--k-gold); color: #041214; }

/* ---------- 2. 变量 ---------- */
:root {
  /* 品牌色 */
  --k-deep: #06282B;
  --k-ink: #041214;
  --k-slate: #123C3F;
  --k-silver: #E8F1EF;
  --k-gold: #E7B24A;
  --k-gold-hi: #FFD98A;
  --k-cinnabar: #C0392B;
  --k-spark: #37D6C0;
  --k-ash: #9BB0AE;

  /* 字体 */
  --font-display: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Noto Sans SC', 'Source Han Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'Roboto Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-serif: 'Noto Serif SC', 'Songti SC', 'SimSun', serif;

  /* 形状 */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-pill: 999px;

  /* 线条与投影 */
  --line: rgba(155, 176, 174, 0.22);
  --line-gold: rgba(231, 178, 74, 0.42);
  --shadow-1: 0 18px 40px -26px rgba(0, 0, 0, 0.9);
  --shadow-2: 0 30px 70px -40px rgba(0, 0, 0, 1);

  /* 度量 */
  --wrap: 1280px;
  --gut: clamp(16px, 4vw, 40px);
  --ease: cubic-bezier(0.22, 0.68, 0.32, 1);
}

/* ---------- 3. 基础排版 ---------- */
body {
  background-color: var(--k-deep);
  background-image:
    radial-gradient(52% 40% at 84% 2%, rgba(55, 214, 192, 0.10), transparent 66%),
    radial-gradient(42% 36% at 2% 96%, rgba(231, 178, 74, 0.07), transparent 72%);
  color: var(--k-silver);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.85;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.24;
  color: var(--k-silver);
}

h1 { font-size: clamp(2.2rem, 5vw, 4.2rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }
h4 { font-size: 1.0625rem; }

p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--k-gold-hi); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--k-gold); }

strong, b { font-weight: 700; }

/* ---------- 4. 无障碍与焦点 ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--k-gold-hi);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.wd-skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 120;
  padding: 10px 20px;
  border-radius: var(--r-pill);
  background: linear-gradient(135deg, var(--k-gold-hi), var(--k-gold));
  color: #041214;
  font-weight: 700;
  font-size: 0.875rem;
  text-decoration: none;
  box-shadow: 0 12px 28px -14px rgba(231, 178, 74, 0.95);
  transform: translateY(-200%);
  transition: transform 0.22s var(--ease);
}
.wd-skip-link:focus { transform: translateY(0); color: #041214; }

/* ---------- 5. 布局骨架 ---------- */
.wd-wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: var(--gut);
  padding-right: var(--gut);
}
.wd-wrap--narrow { max-width: 900px; }

.wd-stack {
  display: grid;
  gap: clamp(18px, 2.4vw, 28px);
}

.wd-grid {
  display: grid;
  gap: clamp(16px, 2.2vw, 26px);
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 760px) {
  .wd-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .wd-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1060px) {
  .wd-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.wd-split {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 960px) {
  .wd-split { grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); }
  .wd-split--wide-aside { grid-template-columns: minmax(0, 3fr) minmax(0, 9fr); }
  .wd-split--flip .wd-split__aside { order: 2; }
}
.wd-split__aside,
.wd-split__main { min-width: 0; }

/* ---------- 6. 面板块 ---------- */
.wd-panel {
  position: relative;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(158deg, rgba(18, 60, 63, 0.72), rgba(6, 40, 43, 0.92));
  box-shadow: var(--shadow-1), inset 0 1px 0 rgba(232, 241, 239, 0.05);
}
.wd-panel--plain { background: rgba(18, 60, 63, 0.42); }
.wd-panel--ink {
  background: linear-gradient(158deg, rgba(4, 18, 20, 0.96), rgba(6, 40, 43, 0.9));
  border-color: rgba(231, 178, 74, 0.26);
}
.wd-panel--accent { border-left: 3px solid var(--k-cinnabar); }

/* ---------- 7. 章节切口与横线 ---------- */
.wd-rule {
  position: relative;
  height: 1px;
  border: 0;
  margin: clamp(24px, 4vw, 44px) 0;
  background: linear-gradient(90deg,
    rgba(231, 178, 74, 0) 0%,
    rgba(231, 178, 74, 0.7) 18%,
    rgba(55, 214, 192, 0.5) 55%,
    rgba(231, 178, 74, 0.7) 82%,
    rgba(231, 178, 74, 0) 100%);
}
.wd-rule::after {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 34%;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, rgba(231, 178, 74, 0), var(--k-gold-hi));
  transform-origin: left center;
  animation: wd-current 7s var(--ease) infinite;
}
@keyframes wd-current {
  0%   { transform: scaleX(0.02); opacity: 0; }
  12%  { opacity: 1; }
  50%  { transform: scaleX(1); opacity: 0.9; }
  88%  { opacity: 0.55; }
  100% { transform: scaleX(0.02); opacity: 0; }
}

.wd-chapter {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.wd-chapter__no {
  flex: 0 0 auto;
  padding: 2px 9px;
  border: 1px solid rgba(231, 178, 74, 0.5);
  border-radius: 6px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  color: var(--k-gold);
}
.wd-chapter__line {
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(90deg, rgba(231, 178, 74, 0.6), rgba(231, 178, 74, 0));
}

.wd-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--k-spark);
}

/* ---------- 8. 数字锚点与数据结构 ---------- */
.wd-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--k-gold);
}
.wd-num__unit {
  display: inline-block;
  margin-left: 6px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--k-ash);
  letter-spacing: 0;
}

.wd-metric {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-left: 2px solid var(--k-gold);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: rgba(18, 60, 63, 0.5);
}
.wd-metric__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--k-ash);
}
.wd-metric__value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  line-height: 1.1;
  color: var(--k-gold);
}
.wd-metric__cond {
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--k-ash);
}

/* ---------- 9. 按钮与标签 ---------- */
.wd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease),
              background-color 0.2s var(--ease), color 0.2s var(--ease),
              border-color 0.2s var(--ease);
}
.wd-btn--gold {
  background: linear-gradient(135deg, var(--k-gold-hi), var(--k-gold) 55%, #b9862c);
  color: #0a1f21;
  box-shadow: 0 10px 24px -14px rgba(231, 178, 74, 0.95);
}
.wd-btn--gold:hover {
  color: #0a1f21;
  transform: translateY(-2px);
  box-shadow: 0 16px 30px -14px rgba(231, 178, 74, 1);
}
.wd-btn--ghost {
  background: transparent;
  border-color: rgba(232, 241, 239, 0.28);
  color: var(--k-silver);
}
.wd-btn--ghost:hover { border-color: var(--k-gold); color: var(--k-gold-hi); }
.wd-btn--spark {
  background: rgba(55, 214, 192, 0.12);
  border-color: rgba(55, 214, 192, 0.5);
  color: var(--k-spark);
}
.wd-btn--spark:hover {
  background: rgba(55, 214, 192, 0.2);
  border-color: var(--k-spark);
  color: var(--k-spark);
  transform: translateY(-2px);
}
.wd-btn--sm { padding: 6px 13px; font-size: 0.8125rem; }

.wd-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 11px;
  border: 1px solid rgba(155, 176, 174, 0.35);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--k-ash);
}
.wd-tag--gold { border-color: rgba(231, 178, 74, 0.6); color: var(--k-gold); }
.wd-tag--spark { border-color: rgba(55, 214, 192, 0.6); color: var(--k-spark); }
.wd-tag--alert { border-color: rgba(192, 57, 43, 0.75); color: #E8756A; }

/* ---------- 10. 卡片 ---------- */
.wd-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(16px, 2.2vw, 22px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(18, 60, 63, 0.5);
  color: inherit;
  text-decoration: none;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease),
              box-shadow 0.25s var(--ease);
}
.wd-card:hover,
.wd-card:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(231, 178, 74, 0.6);
  box-shadow: var(--shadow-2);
}
.wd-card__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.0625rem;
  line-height: 1.4;
  color: var(--k-silver);
}
.wd-card__text {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--k-ash);
}
.wd-card__meta {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: rgba(155, 176, 174, 0.8);
}

/* ---------- 11. 数据表格 ---------- */
.wd-table {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  font-size: 0.9375rem;
  overflow: hidden;
}
.wd-table caption {
  padding: 0 0 12px;
  text-align: left;
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--k-ash);
}
.wd-table th,
.wd-table td {
  padding: 12px 15px;
  border-bottom: 1px solid rgba(155, 176, 174, 0.16);
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
}
.wd-table thead th {
  background: rgba(18, 60, 63, 0.9);
  color: var(--k-gold);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  white-space: nowrap;
}
.wd-table tbody tr:nth-child(even) { background: rgba(18, 60, 63, 0.42); }
.wd-table tbody tr:last-child td { border-bottom: 0; }
.wd-table td .wd-num { font-size: 1.5rem; }

/* ---------- 12. 可展开内容组 ---------- */
.wd-disclosure {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(18, 60, 63, 0.42);
  overflow: hidden;
}
.wd-disclosure + .wd-disclosure { margin-top: 10px; }
.wd-disclosure__trigger {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  border: 0;
  background: none;
  color: var(--k-silver);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.6;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.wd-disclosure__trigger:hover {
  color: var(--k-gold-hi);
  background: rgba(231, 178, 74, 0.06);
}
.wd-disclosure__icon {
  flex: 0 0 auto;
  position: relative;
  width: 16px;
  height: 16px;
  transition: transform 0.25s var(--ease);
}
.wd-disclosure__icon::before,
.wd-disclosure__icon::after {
  content: "";
  position: absolute;
  background: var(--k-gold);
  border-radius: 2px;
}
.wd-disclosure__icon::before { left: 0; top: 7px; width: 16px; height: 2px; }
.wd-disclosure__icon::after { left: 7px; top: 0; width: 2px; height: 16px; }
.wd-disclosure__trigger[aria-expanded="true"] .wd-disclosure__icon { transform: rotate(135deg); }
.wd-disclosure__panel { padding: 0 18px 18px; }
.wd-disclosure__panel[hidden] { display: none; }

/* ---------- 13. 标签页 ---------- */
.wd-tabs { display: block; }
.wd-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  padding: 0;
  list-style: none;
}
.wd-tabs__btn {
  padding: 8px 16px;
  border: 1px solid rgba(155, 176, 174, 0.3);
  border-radius: var(--r-pill);
  background: rgba(18, 60, 63, 0.5);
  color: var(--k-ash);
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease),
              background-color 0.2s var(--ease);
}
.wd-tabs__btn:hover { color: var(--k-silver); border-color: rgba(231, 178, 74, 0.5); }
.wd-tabs__btn[aria-selected="true"] {
  background: linear-gradient(135deg, var(--k-gold-hi), var(--k-gold));
  border-color: var(--k-gold);
  color: #041214;
}
.wd-tabs__panel[hidden] { display: none; }

/* ---------- 14. 月份时间轴 ---------- */
.wd-timeline {
  margin: 0;
  padding: 0 0 0 18px;
  list-style: none;
  border-left: 1px solid rgba(231, 178, 74, 0.35);
}
.wd-timeline__item { position: relative; }
.wd-timeline__item::before {
  content: "";
  position: absolute;
  left: -23px;
  top: 16px;
  width: 9px;
  height: 9px;
  border: 1px solid rgba(231, 178, 74, 0.55);
  border-radius: 50%;
  background: var(--k-slate);
  transition: background-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.wd-timeline__item.is-active::before {
  background: var(--k-gold);
  box-shadow: 0 0 12px rgba(231, 178, 74, 0.85);
}
.wd-timeline__btn {
  display: flex;
  width: 100%;
  align-items: baseline;
  gap: 10px;
  padding: 10px 0;
  border: 0;
  background: none;
  color: var(--k-ash);
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}
.wd-timeline__btn:hover { color: var(--k-silver); transform: translateX(3px); }
.wd-timeline__btn[aria-selected="true"] { color: var(--k-gold); }
.wd-timeline__month {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: 0.04em;
}
.wd-timeline__note {
  font-size: 0.8125rem;
  color: rgba(155, 176, 174, 0.85);
}

/* ---------- 15. 横向入口索引 ---------- */
.wd-index-rail {
  display: flex;
  gap: 12px;
  padding: 4px 4px 16px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(231, 178, 74, 0.6) transparent;
}
.wd-index-rail::-webkit-scrollbar { height: 6px; }
.wd-index-rail::-webkit-scrollbar-track { background: rgba(155, 176, 174, 0.14); border-radius: 3px; }
.wd-index-rail::-webkit-scrollbar-thumb { background: rgba(231, 178, 74, 0.65); border-radius: 3px; }
.wd-index-rail__item {
  flex: 0 0 min(78vw, 280px);
  scroll-snap-align: start;
}

/* ---------- 16. 图片容器 ---------- */
.wd-figure {
  position: relative;
  display: block;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(150deg, #0A3438, #041214);
  box-shadow: var(--shadow-2);
}
.wd-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(60% 55% at 22% 12%, rgba(55, 214, 192, 0.16), transparent 62%);
}
.wd-figure > img,
.wd-figure > picture > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.wd-figure--21x9 { aspect-ratio: 21 / 9; }
.wd-figure--16x9 { aspect-ratio: 16 / 9; }
.wd-figure--4x3  { aspect-ratio: 4 / 3; }
.wd-figure--3x4  { aspect-ratio: 3 / 4; }
.wd-figure__ph {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: rgba(232, 241, 239, 0.42);
  text-align: center;
}
.wd-figure__cap {
  margin-top: 10px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--k-ash);
}

/* ---------- 17. 面包屑 ---------- */
.wd-breadcrumb {
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--k-ash);
}
.wd-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.wd-breadcrumb li + li::before {
  content: "／";
  margin-right: 6px;
  color: rgba(155, 176, 174, 0.5);
}
.wd-breadcrumb a { color: var(--k-ash); text-decoration: none; }
.wd-breadcrumb a:hover { color: var(--k-gold); }
.wd-breadcrumb [aria-current="page"] { color: var(--k-silver); }

/* ---------- 18. 正文区 ---------- */
.wd-prose {
  max-width: 68ch;
  font-size: 1.0625rem;
  line-height: 1.85;
}
.wd-prose > * + * { margin-top: 1.05em; }
.wd-prose h2,
.wd-prose h3 {
  margin-top: 1.6em;
  font-family: var(--font-display);
  font-weight: 900;
}
.wd-prose h2 { font-size: clamp(1.4rem, 2.4vw, 1.9rem); }
.wd-prose h3 { font-size: clamp(1.15rem, 1.8vw, 1.4rem); }
.wd-prose a { color: var(--k-gold-hi); text-decoration-color: rgba(231, 178, 74, 0.5); }
.wd-prose strong { color: var(--k-silver); }
.wd-prose ul,
.wd-prose ol { padding-left: 1.3em; }
.wd-prose li + li { margin-top: 0.4em; }
.wd-prose blockquote {
  padding: 4px 0 4px 18px;
  border-left: 2px solid var(--k-gold);
  color: var(--k-ash);
}

/* ---------- 19. 滚动进度与呈现 ---------- */
.wd-progress {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 90;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--k-gold), var(--k-spark));
  pointer-events: none;
}

[data-motion="on"] .wd-rise {
  opacity: 0;
  transform: translateY(14px);
}
[data-motion="on"] .wd-rise.is-in {
  opacity: 1;
  transform: none;
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

/* ---------- 20. 悬浮胶囊头部 ---------- */
.wd-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(4, 18, 20, 0.86);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid rgba(231, 178, 74, 0.24);
}
.wd-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  pointer-events: none;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(231, 178, 74, 0.7) 18%,
    rgba(55, 214, 192, 0.55) 50%,
    rgba(231, 178, 74, 0.7) 82%,
    transparent 100%);
  opacity: 0.55;
}

.wd-header__rail {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 10px var(--gut);
}

.wd-brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
  padding: 7px 16px 7px 9px;
  border: 1px solid rgba(231, 178, 74, 0.34);
  border-radius: var(--r-pill);
  background: linear-gradient(135deg, rgba(18, 60, 63, 0.92), rgba(4, 18, 20, 0.92));
  box-shadow: inset 0 1px 0 rgba(232, 241, 239, 0.06);
  color: var(--k-silver);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.wd-brand:hover {
  border-color: var(--k-gold);
  color: var(--k-silver);
  transform: translateY(-1px);
}
.wd-brand__glyph {
  position: relative;
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(140deg, var(--k-gold-hi), var(--k-gold) 46%, #8a6420);
  box-shadow: 0 0 0 1px rgba(231, 178, 74, 0.5), 0 6px 14px -6px rgba(231, 178, 74, 0.75);
}
.wd-brand__glyph::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1.5px solid rgba(4, 18, 20, 0.78);
  border-right-color: transparent;
  border-bottom-color: transparent;
  border-radius: 2px;
  transform: rotate(-45deg);
}
.wd-brand__stack {
  display: flex;
  flex-direction: column;
  line-height: 1.18;
  min-width: 0;
}
.wd-brand__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.wd-brand__sub {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--k-ash);
  white-space: nowrap;
}

.wd-nav {
  margin-left: auto;
  min-width: 0;
}
.wd-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 4px;
  list-style: none;
  border: 1px solid rgba(155, 176, 174, 0.22);
  border-radius: var(--r-pill);
  background: rgba(18, 60, 63, 0.5);
}
.wd-nav__item { display: block; }
.wd-nav__link {
  display: block;
  padding: 7px 15px;
  border-radius: var(--r-pill);
  color: var(--k-ash);
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.5;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.wd-nav__link:hover {
  color: var(--k-silver);
  background: rgba(232, 241, 239, 0.07);
}
.wd-nav__link[aria-current="page"] {
  color: #041214;
  background: linear-gradient(135deg, var(--k-gold-hi), var(--k-gold) 60%, #c9912f);
  font-weight: 700;
  box-shadow: 0 6px 16px -8px rgba(231, 178, 74, 0.9);
}
.wd-nav__foot { display: none; }

.wd-header__acts {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
}

.wd-burger {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid rgba(155, 176, 174, 0.3);
  border-radius: var(--r-pill);
  background: rgba(18, 60, 63, 0.7);
  color: var(--k-silver);
  font-size: 0.8125rem;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.wd-burger:hover { border-color: var(--k-gold); color: var(--k-gold-hi); }
.wd-burger__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: background-color 0.2s var(--ease);
}
.wd-burger__bars::before,
.wd-burger__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.22s var(--ease), top 0.22s var(--ease);
}
.wd-burger__bars::before { top: -5px; }
.wd-burger__bars::after { top: 5px; }
.wd-burger[aria-expanded="true"] .wd-burger__bars { background: transparent; }
.wd-burger[aria-expanded="true"] .wd-burger__bars::before { top: 0; transform: rotate(45deg); }
.wd-burger[aria-expanded="true"] .wd-burger__bars::after { top: 0; transform: rotate(-45deg); }

/* ---------- 21. 页脚 ---------- */
.wd-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 96px);
  background: var(--k-ink);
  border-top: 1px solid rgba(231, 178, 74, 0.28);
  color: var(--k-ash);
  font-size: 0.9rem;
  line-height: 1.8;
}
.wd-footer::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  height: 2px;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(231, 178, 74, 0.85) 22%,
    rgba(55, 214, 192, 0.6) 52%,
    rgba(231, 178, 74, 0.85) 80%,
    transparent 100%);
  opacity: 0.7;
}

.wd-footer__grid {
  display: grid;
  gap: clamp(26px, 3.2vw, 44px);
  grid-template-columns: minmax(0, 1fr);
  padding: clamp(36px, 5vw, 64px) 0 clamp(24px, 3vw, 36px);
}
@media (min-width: 720px) {
  .wd-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1024px) {
  .wd-footer__grid { grid-template-columns: 1.7fr 1fr 1fr 1fr; }
}

.wd-footer__brand { min-width: 0; }
.wd-footer__glyph {
  display: inline-block;
  width: 22px;
  height: 22px;
  margin-right: 10px;
  border-radius: 6px;
  vertical-align: middle;
  background: linear-gradient(140deg, var(--k-gold-hi), var(--k-gold) 50%, #8a6420);
  box-shadow: 0 6px 14px -8px rgba(231, 178, 74, 0.9);
}
.wd-footer__name {
  display: inline-block;
  margin: 0;
  vertical-align: middle;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--k-silver);
}
.wd-footer__tag {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  color: var(--k-ash);
}
.wd-footer__facts {
  display: grid;
  gap: 9px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.875rem;
  line-height: 1.7;
}
.wd-footer__facts li {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 10px;
}
.wd-footer__fact-k {
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: rgba(155, 176, 174, 0.78);
}
.wd-footer__fact-v { color: var(--k-silver); word-break: break-word; }

.wd-footer__col { min-width: 0; }
.wd-footer__title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(231, 178, 74, 0.22);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--k-gold);
}
.wd-footer__list {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.wd-footer__link {
  display: inline-block;
  color: var(--k-ash);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}
.wd-footer__link:hover { color: var(--k-gold-hi); padding-left: 5px; }

.wd-footer__band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding: 18px 0 30px;
  border-top: 1px solid rgba(155, 176, 174, 0.16);
}
.wd-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.wd-footer__copy {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  color: rgba(155, 176, 174, 0.8);
}

/* ---------- 22. 移动端头部状态 ---------- */
@media (max-width: 1023px) {
  .wd-burger { display: inline-flex; }

  .wd-nav {
    position: fixed;
    left: 12px;
    right: 12px;
    top: 70px;
    z-index: 70;
    margin: 0;
    padding: 12px;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    border: 1px solid rgba(231, 178, 74, 0.34);
    border-radius: var(--r-lg);
    background: rgba(4, 18, 20, 0.98);
    box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.95);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(0.985);
    transition: opacity 0.22s var(--ease), transform 0.22s var(--ease),
                visibility 0.22s linear;
  }
  .wd-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
  }
  .wd-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: none;
  }
  .wd-nav__link {
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 1rem;
  }
  .wd-nav__foot {
    display: block;
    margin: 12px 0 0;
    padding: 12px 14px 4px;
    border-top: 1px solid rgba(155, 176, 174, 0.18);
    font-size: 0.75rem;
    line-height: 1.75;
    color: var(--k-ash);
  }
}

@media (max-width: 900px) {
  .wd-brand__sub { display: none; }
}

@media (max-width: 767px) {
  .wd-btn--spark { display: none; }
  .wd-header__acts { margin-left: auto; }
  .wd-brand__name { font-size: 0.9375rem; }
  .wd-figure--21x9 { aspect-ratio: 16 / 9; }
}

@media (max-width: 480px) {
  .wd-brand { gap: 8px; padding: 6px 12px 6px 8px; }
  .wd-brand__glyph { width: 22px; height: 22px; }
  .wd-btn { padding: 8px 13px; font-size: 0.8125rem; }
  .wd-burger { padding: 8px 12px; }
  .wd-burger__txt { display: none; }
}

/* ---------- 23. Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  html { scroll-behavior: auto; }
  .wd-rule::after {
    animation: none;
    width: 34%;
    opacity: 0.6;
    transform: none;
  }
  [data-motion="on"] .wd-rise,
  [data-motion="on"] .wd-rise.is-in {
    opacity: 1;
    transform: none;
  }
}