/* ============================================================
   宝石会馆 · 共享样式 /assets/site.css
   模块化 Bento 信息板 · 居中刊头 · 宝石切面材质
   ============================================================ */

/* ---------- 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, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, picture, svg, video { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; }
table { border-collapse: collapse; width: 100%; }
hr { border: 0; }

/* ---------- 2. Tokens ---------- */
:root {
  --ink: #0A0A0D;
  --white: #FFFFFF;
  --paper: #F2F0EA;
  --ruby: #E01B3C;
  --ruby-soft: #FBE3E8;
  --sapphire: #1E3FD6;
  --emerald: #0F8A6A;
  --gold: #C9A227;
  --grey: #6B7280;
  --deep: #1A1A22;

  --line: rgba(201, 162, 39, .34);
  --line-ink: rgba(10, 10, 13, .09);
  --line-light: rgba(255, 255, 255, .12);

  --r-xl: 30px;
  --r-lg: 20px;
  --r-md: 14px;
  --r-pill: 999px;

  --shell: 1180px;
  --gutter: clamp(16px, 4vw, 44px);
  --gap: clamp(14px, 1.8vw, 22px);

  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Noto Sans Mono CJK SC", monospace;

  --shadow-rest: 0 1px 2px rgba(10, 10, 13, .05);
  --shadow-hover: 0 12px 30px rgba(10, 10, 13, .16);
  --ease: 180ms cubic-bezier(.2, .7, .3, 1);
}

/* ---------- 3. 基础中文排版 ---------- */
body {
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16.5px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: .02em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: .01em;
}
h1 { font-size: clamp(30px, 4.4vw, 50px); }
h2 { font-size: clamp(24px, 3.1vw, 36px); }
h3 { font-size: clamp(19px, 2.1vw, 25px); }
h4 { font-size: 18px; }
strong { font-weight: 700; }
small { font-size: 12.5px; }

.mono-index {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sapphire);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--gold);
}
.lede {
  font-size: clamp(16px, 1.7vw, 18.5px);
  line-height: 1.8;
  color: #3A3A42;
  max-width: 46em;
}
.section--ink .lede { color: rgba(255, 255, 255, .72); }
.prose { max-width: 68ch; }
.prose p + p { margin-top: 1.05em; }
.prose h2 { margin: 1.8em 0 .6em; }
.prose h3 { margin: 1.5em 0 .5em; }
.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;
}

/* 焦点反馈：两像素红宝石外环 + 两像素偏移 */
:focus-visible {
  outline: 2px solid var(--ruby);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ---------- 4. 容器与分区 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { padding: clamp(48px, 7vw, 96px) 0; }
.section--tight { padding: clamp(32px, 4.5vw, 60px) 0; }
.section--ink { background: var(--ink); color: rgba(255, 255, 255, .8); }
.section--ink h1, .section--ink h2, .section--ink h3, .section--ink h4 { color: #fff; }
.section--paper { background: var(--paper); }
.section--soft { background: var(--ruby-soft); }
.section--deep { background: var(--deep); color: rgba(255, 255, 255, .8); }
.section--deep h1, .section--deep h2, .section--deep h3 { color: #fff; }

.section-head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 60em;
  margin-bottom: clamp(24px, 3.4vw, 44px);
}
.section-title { font-size: clamp(26px, 3.2vw, 40px); }

.cut-rule {
  position: relative;
  height: 1px;
  background: var(--line);
  margin: clamp(22px, 3vw, 40px) 0;
}
.cut-rule::after {
  content: "";
  position: absolute;
  left: 0;
  top: -5px;
  width: 46px;
  height: 11px;
  background: var(--ruby);
  clip-path: polygon(0 50%, 18% 0, 100% 0, 82% 50%, 100% 100%, 18% 100%);
}

/* ---------- 5. Bento 网格 ---------- */
.bento {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gap);
  grid-auto-rows: minmax(120px, auto);
}
.bento__cell { grid-column: span 4; min-width: 0; }
.bento__cell--half { grid-column: span 6; }
.bento__cell--wide { grid-column: span 8; }
.bento__cell--full { grid-column: span 12; }
.bento__cell--tall { grid-row: span 2; }
.bento__cell--focus {
  grid-column: span 8;
  grid-row: span 2;
}
.grid-auto {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}
@media (max-width: 980px) {
  .bento { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .bento__cell { grid-column: span 3; }
  .bento__cell--half,
  .bento__cell--wide,
  .bento__cell--full,
  .bento__cell--focus { grid-column: span 6; }
  .bento__cell--tall,
  .bento__cell--focus { grid-row: auto; }
}
@media (max-width: 620px) {
  .bento { grid-template-columns: minmax(0, 1fr); }
  .bento__cell,
  .bento__cell--half,
  .bento__cell--wide,
  .bento__cell--full,
  .bento__cell--focus { grid-column: span 1; }
}

/* ---------- 6. 卡片 ---------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: clamp(18px, 2.4vw, 28px);
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line-ink);
  border-radius: var(--r-lg);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease), background var(--ease);
}
.card::after {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid transparent;
  border-radius: calc(var(--r-lg) - 6px);
  pointer-events: none;
  transition: border-color var(--ease);
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(201, 162, 39, .55);
}
.card:hover::after { border-color: rgba(224, 27, 60, .45); }
.card--white { background: var(--white); }
.card--deep {
  background: var(--deep);
  color: rgba(255, 255, 255, .82);
  border-color: var(--line-light);
}
.card--deep .card__title { color: #fff; }
.card--deep .card__text { color: rgba(255, 255, 255, .66); }
.card--focus {
  border-color: var(--ruby);
  box-shadow: inset 0 0 0 1px var(--ruby);
}
.card--focus::before {
  content: "";
  position: absolute;
  left: 0;
  top: clamp(18px, 2.4vw, 28px);
  width: 3px;
  height: 42px;
  border-radius: 0 3px 3px 0;
  background: var(--ruby);
}
.card__index {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--grey);
}
.card--deep .card__index { color: var(--gold); }
.card__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.3;
}
.card__text {
  font-size: 15.5px;
  line-height: 1.75;
  color: #4B4B54;
}
.card__foot {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

/* ---------- 7. 标签与状态 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border: 1px solid currentColor;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  line-height: 1.6;
  white-space: nowrap;
}
.tag--ruby { color: var(--ruby); }
.tag--sapphire { color: var(--sapphire); }
.tag--emerald { color: var(--emerald); }
.tag--gold { color: #8A6F14; }
.section--ink .tag--gold,
.section--deep .tag--gold,
.card--deep .tag--gold { color: var(--gold); }
.section--ink .tag--sapphire,
.card--deep .tag--sapphire { color: #8FA6FF; }
.section--ink .tag--emerald,
.card--deep .tag--emerald { color: #4FD1AA; }

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--emerald);
}
.status::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 0 3px rgba(15, 138, 106, .18);
}
.status--gold { color: var(--gold); }
.status--gold::before { background: var(--gold); box-shadow: 0 0 0 3px rgba(201, 162, 39, .18); }

.stat { display: flex; flex-direction: column; gap: 4px; }
.stat__value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.05;
  color: var(--ruby);
}
.stat__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--grey);
}
.section--ink .stat__label,
.card--deep .stat__label { color: rgba(255, 255, 255, .55); }

/* ---------- 8. 按钮与胶囊 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  background: transparent;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .04em;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--ease), background var(--ease), color var(--ease), border-color var(--ease), box-shadow var(--ease);
}
.btn--ruby {
  background: var(--ruby);
  color: #fff;
  box-shadow: 0 8px 22px rgba(224, 27, 60, .26);
}
.btn--ruby:hover { background: #C81634; transform: translateY(-2px); }
.btn--ink { background: var(--ink); color: #fff; }
.btn--ink:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn--outline { border-color: rgba(10, 10, 13, .25); color: var(--ink); }
.btn--outline:hover { border-color: var(--ruby); color: var(--ruby); }
.btn--gold { border-color: var(--gold); color: var(--gold); }
.btn--gold:hover { background: var(--gold); color: var(--ink); }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  background: transparent;
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: .04em;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease);
}
.pill--ruby { background: var(--ruby); color: #fff; }
.pill--ruby:hover { background: #C81634; }
.pill--ghost { border-color: rgba(255, 255, 255, .24); color: #fff; }
.pill--ghost:hover { border-color: var(--gold); color: #fff; }
.pill--sm { padding: 6px 14px; font-size: 12.5px; }

/* 纯前端筛选胶囊 */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid rgba(10, 10, 13, .16);
  border-radius: var(--r-pill);
  background: var(--white);
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}
.filter-pill:hover { border-color: var(--ruby); color: var(--ruby); }
.filter-pill[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}
.section--ink .filter-pill,
.section--deep .filter-pill {
  background: var(--deep);
  border-color: var(--line-light);
  color: rgba(255, 255, 255, .8);
}
.section--ink .filter-pill[aria-pressed="true"],
.section--deep .filter-pill[aria-pressed="true"] {
  background: var(--ruby);
  border-color: var(--ruby);
  color: #fff;
}
[data-filter-item][hidden] { display: none !important; }

/* ---------- 9. 图片容器（页面阶段放置图片） ---------- */
.media-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-lg);
  aspect-ratio: 16 / 10;
  background-color: var(--ink);
  background-image:
    radial-gradient(120% 95% at 18% 12%, rgba(30, 63, 214, .55), transparent 58%),
    radial-gradient(110% 90% at 82% 88%, rgba(224, 27, 60, .45), transparent 58%),
    radial-gradient(80% 70% at 70% 22%, rgba(15, 138, 106, .32), transparent 62%),
    linear-gradient(152deg, #16161D 0%, #0A0A0D 100%);
}
.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media-frame::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid var(--line);
  border-radius: calc(var(--r-lg) - 8px);
  pointer-events: none;
}
.media-frame--wide { aspect-ratio: 16 / 9; }
.media-frame--macro { aspect-ratio: 5 / 4; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame__note {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--grey);
}

/* ---------- 10. 面包屑与坐标索引 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--grey);
}
.breadcrumbs__link {
  text-decoration: none;
  color: var(--grey);
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}
.breadcrumbs__link:hover { color: var(--ruby); border-bottom-color: var(--ruby); }
.breadcrumbs__sep { color: var(--gold); }
.breadcrumbs__current { color: var(--ink); font-weight: 500; }
.section--ink .breadcrumbs__current,
.section--deep .breadcrumbs__current { color: #fff; }

.index-rail {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
}
.index-rail__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0 7px 12px;
  border-left: 2px solid var(--line);
  color: var(--grey);
  text-decoration: none;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}
.index-rail__link:hover { color: var(--ink); border-left-color: var(--gold); }
.index-rail__link.is-active,
.index-rail__link[aria-current="true"] {
  color: var(--ruby);
  border-left-color: var(--ruby);
  font-weight: 500;
}
.index-rail__num { color: var(--gold); }

/* ---------- 11. 表格基础 ---------- */
.table-wrap { overflow-x: auto; border-radius: var(--r-md); }
.table {
  min-width: 560px;
  font-size: 15px;
  background: var(--white);
}
.table th,
.table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line-ink);
}
.table th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--grey);
}
.table tbody tr:nth-child(even) { background: var(--ruby-soft); }

/* ---------- 12. 跳过链接 ---------- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -72px;
  z-index: 400;
  padding: 11px 20px;
  background: var(--ruby);
  color: #fff;
  border-radius: 0 0 var(--r-md) var(--r-md);
  font-size: 14px;
  text-decoration: none;
  transition: top var(--ease);
}
.skip-link:focus { top: 0; }

/* ---------- 13. 居中刊头导航 ---------- */
.site-header {
  position: relative;
  background: var(--ink);
  color: var(--white);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.site-header::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(112deg, transparent 0 63%, rgba(30, 63, 214, .16) 63% 63.4%, transparent 63.4%),
    linear-gradient(248deg, transparent 0 71%, rgba(224, 27, 60, .14) 71% 71.4%, transparent 71.4%),
    radial-gradient(60% 130% at 12% 0%, rgba(30, 63, 214, .18), transparent 70%),
    radial-gradient(55% 110% at 90% 100%, rgba(224, 27, 60, .16), transparent 70%);
}
.header-inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(14px, 2.2vw, 24px);
  padding-bottom: 0;
}

.utility-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 18px;
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .55);
}
.utility-bar__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.utility-bar__dot { color: var(--gold); font-size: 8px; line-height: 1; }
.utility-bar__cta { flex: 0 0 auto; }

.masthead {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: clamp(12px, 2vw, 22px) 0 clamp(14px, 2.2vw, 22px);
}
.masthead__brand {
  display: block;
  text-decoration: none;
  color: #fff;
}
.masthead__cn {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 6.6vw, 62px);
  line-height: 1.03;
  letter-spacing: .1em;
  text-indent: .1em;
}
.masthead__en {
  display: block;
  margin-top: 10px;
  font-size: 10.5px;
  letter-spacing: .4em;
  text-indent: .4em;
  color: var(--gold);
}
.masthead__tagline {
  margin-top: 12px;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .62);
  max-width: 28em;
}
.masthead__cut {
  position: relative;
  display: block;
  width: min(360px, 74%);
  height: 1px;
  margin-top: 16px;
  background: linear-gradient(90deg, transparent, var(--gold) 16%, var(--gold) 84%, transparent);
}
.masthead__cut::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 9px;
  height: 9px;
  transform: translate(-50%, -50%) rotate(45deg);
  background: var(--ruby);
  box-shadow: 0 0 0 3px var(--ink);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  margin-top: 16px;
  padding: 9px 16px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, .04);
  color: #fff;
  font-size: 13px;
  letter-spacing: .06em;
  cursor: pointer;
  transition: border-color var(--ease), background var(--ease);
}
.nav-toggle:hover { border-color: var(--gold); }
.nav-toggle[aria-expanded="true"] {
  border-color: var(--ruby);
  background: rgba(224, 27, 60, .18);
}
.nav-toggle__box {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  width: 16px;
  height: 12px;
}
.nav-toggle__box i {
  display: block;
  height: 1.5px;
  width: 100%;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--ease), opacity var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__box i:nth-child(1) { transform: translateY(4.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__box i:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__box i:nth-child(3) { transform: translateY(-4.5px) rotate(-45deg); }

.site-nav {
  position: relative;
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 12px 0 16px;
}
.site-nav::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -1px;
  width: 130px;
  height: 1px;
  transform: translateX(-50%);
  background: var(--ruby);
}
.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.nav-list__item { display: flex; }
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  color: rgba(255, 255, 255, .76);
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: .04em;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--ease), background var(--ease), border-color var(--ease);
}
.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, .07);
  border-color: rgba(201, 162, 39, .55);
}
.nav-link[aria-current="page"] {
  background: var(--ruby);
  border-color: var(--ruby);
  color: #fff;
}

/* ---------- 14. 滚动进度与底部客服胶囊 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 300;
  pointer-events: none;
}
.scroll-progress span {
  display: block;
  height: 100%;
  width: var(--progress, 0%);
  background: linear-gradient(90deg, var(--gold), var(--ruby));
  transition: width 120ms linear;
}

.dock-contact { display: none; }
@media (max-width: 1023px) {
  .dock-contact[data-visible="true"] {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    position: fixed;
    left: 50%;
    bottom: calc(16px + env(safe-area-inset-bottom));
    transform: translateX(-50%);
    z-index: 250;
    padding: 13px 24px;
    border-radius: var(--r-pill);
    background: var(--ruby);
    color: #fff;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: .04em;
    text-decoration: none;
    box-shadow: 0 12px 30px rgba(224, 27, 60, .38), inset 0 0 0 1px rgba(255, 255, 255, .16);
  }
}
.dock-contact__label { white-space: nowrap; }
.dock-contact__hint {
  font-size: 10.5px;
  letter-spacing: .12em;
  opacity: .82;
  white-space: nowrap;
}

/* ---------- 15. 复制的微提示 ---------- */
.copy-toast {
  position: fixed;
  left: 50%;
  bottom: calc(88px + env(safe-area-inset-bottom));
  z-index: 400;
  transform: translate(-50%, 10px);
  opacity: 0;
  pointer-events: none;
  padding: 10px 20px;
  border: 1px solid var(--gold);
  border-radius: var(--r-pill);
  background: var(--ink);
  color: #fff;
  font-size: 13.5px;
  letter-spacing: .04em;
  transition: opacity var(--ease), transform var(--ease);
}
.copy-toast[data-show="true"] {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- 16. 页脚 ---------- */
.site-footer {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: rgba(255, 255, 255, .7);
  padding: clamp(44px, 6vw, 80px) 0 26px;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold) 22%, var(--gold) 78%, transparent);
}
.site-footer::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(70% 130% at 100% 0%, rgba(30, 63, 214, .14), transparent 66%),
    radial-gradient(60% 110% at 0% 100%, rgba(15, 138, 106, .12), transparent 66%);
}
.footer-inner { position: relative; z-index: 1; }

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}
.footer-brand__link { display: inline-block; text-decoration: none; }
.footer-brand__cn {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 36px);
  letter-spacing: .08em;
  color: #fff;
}
.footer-brand__en {
  display: block;
  margin-top: 8px;
  font-size: 10.5px;
  letter-spacing: .36em;
  color: var(--gold);
}
.footer-brand__note {
  margin-top: 14px;
  max-width: 34em;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .62);
}
.footer-cta { margin-top: 22px; }

.footer-nav__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 22px;
  margin-top: 14px;
}
.footer-nav__link {
  display: inline-block;
  font-size: 14.5px;
  color: rgba(255, 255, 255, .78);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}
.footer-nav__link:hover { color: #fff; border-bottom-color: var(--ruby); }

.footer-rule {
  height: 1px;
  margin: clamp(26px, 4vw, 44px) 0 clamp(22px, 3.4vw, 34px);
  background: linear-gradient(90deg, var(--line), rgba(255, 255, 255, .04) 60%, transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(18px, 2.6vw, 32px);
}
.footer-block { min-width: 0; }
.footer-block__label {
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
}
.footer-block__value {
  font-size: 15.5px;
  line-height: 1.7;
  color: #fff;
  word-break: break-word;
}
.footer-block__note {
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(255, 255, 255, .5);
}
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  padding: 6px 13px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: var(--r-pill);
  background: transparent;
  color: rgba(255, 255, 255, .82);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  cursor: pointer;
  transition: border-color var(--ease), color var(--ease), background var(--ease);
}
.copy-btn:hover { border-color: var(--ruby); color: #fff; }
.copy-btn[data-copied="true"] {
  border-color: var(--emerald);
  color: #6EE7C2;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 26px;
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .1);
}
.footer-bottom__copy,
.footer-bottom__icp {
  font-size: 11.5px;
  letter-spacing: .1em;
  color: rgba(255, 255, 255, .5);
}
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}
.footer-legal__link {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: rgba(255, 255, 255, .68);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, .2);
  transition: color var(--ease), border-color var(--ease);
}
.footer-legal__link:hover { color: #fff; border-bottom-color: var(--ruby); }

/* ---------- 17. 响应式 ---------- */
@media (max-width: 1023px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .footer-top { grid-template-columns: minmax(0, 1fr); gap: 28px; }
}
@media (max-width: 860px) {
  html { scroll-padding-top: 72px; }
  .nav-toggle { display: inline-flex; }
  .site-nav { display: none; margin-top: 4px; }
  .site-nav[data-open="true"] { display: block; }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  .nav-list__item { display: block; }
  .nav-link {
    justify-content: flex-start;
    padding: 14px 16px;
    border-radius: var(--r-md);
    border-color: rgba(255, 255, 255, .12);
    background: var(--deep);
  }
  .nav-link:hover { background: #22222C; }
  .masthead__en { letter-spacing: .24em; text-indent: .24em; line-height: 1.9; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .utility-bar { justify-content: center; }
  .utility-bar__meta { font-size: 10.5px; letter-spacing: .12em; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-nav__list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-bottom { justify-content: flex-start; }
  .btn { width: 100%; }
  .filter-bar { width: 100%; }
}

/* ---------- 18. 无障碍与减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .card:hover,
  .btn:hover,
  .pill:hover { transform: none; }
  .scroll-progress span { transition: none; }
}