/* ==========================================================================
   /assets/site.css — 博万游艺 全站共享样式
   夜间航图：深海墨蓝底 · 坐标网格 · 电光青路径 · 珊瑚橙行动 · 暖金编号
   ========================================================================== */

/* ---------- reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 24px);
}

:where(body, h1, h2, h3, h4, h5, p, ul, ol, li, figure, blockquote, dl, dt, dd) { margin: 0; }
:where(ul, ol) { list-style: none; padding: 0; }
:where(a) { color: inherit; text-decoration: none; }
:where(button) { font: inherit; color: inherit; background: transparent; border: 0; padding: 0; cursor: pointer; }
:where(img, svg) { display: block; max-width: 100%; }
:where(table) { border-collapse: collapse; width: 100%; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection {
  background: rgba(79, 216, 232, 0.32);
  color: #ffffff;
}

/* ---------- tokens ---------- */
:root {
  --ink-900: #050B14;
  --ink-800: #0B1726;
  --ink-700: #12253A;
  --line-600: #1E3A52;
  --line-soft: rgba(30, 58, 82, 0.62);

  --cyan: #4FD8E8;
  --cyan-dim: rgba(79, 216, 232, 0.14);
  --coral: #FF6B4A;
  --gold: #F2C879;
  --fog: #E8F2F7;
  --glacier: #9AB0C0;
  --paper: #EDF3F7;
  --paper-ink: #071019;

  --font-cn: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-num: "Space Grotesk", "Inter", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --wrap: 1200px;
  --gutter: clamp(16px, 4vw, 44px);
  --header-h: 78px;
  --service-h: 44px;

  --r-s: 8px;
  --r-m: 16px;
  --r-pill: 999px;

  --ease: cubic-bezier(.2, .7, .3, 1);
  --shadow-panel: 0 24px 60px -40px rgba(0, 0, 0, 0.95);
}

/* ---------- base ---------- */
body {
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.85;
  color: var(--fog);
  background-color: var(--ink-900);
  background-image:
    radial-gradient(1100px 640px at 82% -8%, rgba(79, 216, 232, 0.13), transparent 60%),
    radial-gradient(860px 520px at 2% 6%, rgba(255, 107, 74, 0.08), transparent 58%),
    repeating-linear-gradient(to right, rgba(30, 58, 82, 0.34) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(to bottom, rgba(30, 58, 82, 0.24) 0 1px, transparent 1px 88px);
  background-repeat: no-repeat, no-repeat, repeat, repeat;
  -webkit-font-smoothing: antialiased;
}

:where(body) {
  padding-bottom: calc(var(--service-h) + 8px);
}

h1, h2, h3, h4 {
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: 0.02em;
  color: var(--fog);
}

p { text-wrap: pretty; }

/* ---------- layout helpers ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.grid { display: grid; gap: clamp(16px, 2.4vw, 28px); }
.grid--asym { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.grid--two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--three { grid-template-columns: repeat(3, minmax(0, 1fr)); }

@media (max-width: 1080px) {
  .grid--three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .grid--asym,
  .grid--two,
  .grid--three { grid-template-columns: minmax(0, 1fr); }
}

.stack {
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 2vw, 22px);
}

.rule {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, var(--line-600), transparent);
}

/* ---------- typography atoms ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-num);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: currentColor;
  flex: none;
}

.sec-index {
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  font-variant-numeric: tabular-nums;
  color: var(--gold);
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55em;
  padding: 0.9em 1.6em;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: 15px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.02em;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease),
              background-color .22s var(--ease), color .22s var(--ease),
              border-color .22s var(--ease);
}
.btn:hover { transform: translateY(-1px); }

.btn--primary {
  background: linear-gradient(180deg, #7EE6F1, var(--cyan));
  color: #03141A;
  box-shadow: 0 16px 34px -22px var(--cyan);
}
.btn--primary:hover { box-shadow: 0 20px 40px -18px var(--cyan); }

.btn--accent {
  background: linear-gradient(180deg, #FF8467, var(--coral));
  color: #1A0703;
  box-shadow: 0 16px 34px -22px var(--coral);
}
.btn--accent:hover { box-shadow: 0 20px 40px -18px var(--coral); }

.btn--ghost {
  background: rgba(18, 37, 58, 0.55);
  border-color: var(--line-600);
  color: var(--fog);
}
.btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(79, 216, 232, 0.08);
}

/* ---------- chips ---------- */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 15px;
  border: 1px solid var(--line-600);
  border-radius: var(--r-pill);
  background: rgba(18, 37, 58, 0.62);
  color: var(--glacier);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}
.chip:hover {
  color: var(--fog);
  border-color: rgba(79, 216, 232, 0.6);
}
.chip.is-active,
.chip[aria-pressed="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #03141A;
  font-weight: 800;
}

/* ---------- panel ---------- */
.panel {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line-600);
  border-radius: var(--r-m);
  background: linear-gradient(180deg, rgba(18, 37, 58, 0.92), rgba(11, 23, 38, 0.92));
  box-shadow: var(--shadow-panel);
}
.panel::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(79, 216, 232, 0) 72%);
}

/* ---------- breadcrumb ---------- */
.breadcrumb {
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: rgba(154, 176, 192, 0.9);
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}
.breadcrumb li { display: flex; align-items: center; }
.breadcrumb li + li::before {
  content: "/";
  margin-inline: 8px;
  color: var(--line-600);
}
.breadcrumb a { color: rgba(154, 176, 192, 0.9); }
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb [aria-current="page"] { color: var(--fog); }

/* ---------- prose ---------- */
.prose {
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--fog);
}
.prose > * + * { margin-top: 1.05em; }
.prose h2 {
  font-size: clamp(20px, 2.4vw, 26px);
  color: var(--cyan);
  margin-top: 1.8em;
}
.prose h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--fog);
  margin-top: 1.5em;
}
.prose a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.prose ul {
  display: grid;
  gap: 0.4em;
  padding-left: 1.15em;
  list-style: disc;
}
.prose ol {
  display: grid;
  gap: 0.4em;
  padding-left: 1.4em;
  list-style: decimal;
}
.prose li::marker { color: var(--gold); }

/* ---------- figure (图片占位容器) ---------- */
.figure {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-600);
  border-radius: var(--r-m);
  background: linear-gradient(160deg, var(--ink-700), var(--ink-800) 70%, var(--ink-900));
  box-shadow: var(--shadow-panel);
}
.figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(to right, rgba(79, 216, 232, 0.16) 0 1px, transparent 1px 48px),
    repeating-linear-gradient(to bottom, rgba(79, 216, 232, 0.12) 0 1px, transparent 1px 48px);
  opacity: 0.55;
  mix-blend-mode: screen;
}
.figure--21x9 { aspect-ratio: 21 / 9; }
.figure--16x9 { aspect-ratio: 16 / 9; }
.figure--4x3  { aspect-ratio: 4 / 3; }
.figure--1x1  { aspect-ratio: 1 / 1; }
.figure--3x4  { aspect-ratio: 3 / 4; }
.figure-cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 14px 16px;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--fog);
  background: linear-gradient(transparent, rgba(5, 11, 20, 0.92));
}

/* ---------- skip link ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 50%;
  z-index: 200;
  transform: translate(-50%, -180%);
  padding: 12px 22px;
  border-radius: var(--r-pill);
  background: var(--cyan);
  color: #03141A;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.02em;
  transition: transform .26s var(--ease);
}
.skip-link:focus { transform: translate(-50%, 0); }

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(5, 11, 20, 0.94);
  border-bottom: 1px solid var(--line-soft);
  transition: background-color .35s var(--ease), box-shadow .35s var(--ease),
              border-color .35s var(--ease);
}
.site-header[data-stuck="true"] {
  background: #050B14;
  border-bottom-color: var(--line-600);
  box-shadow: 0 26px 54px -46px #000000;
}

.header-inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
  height: var(--header-h);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  transition: height .35s var(--ease);
}
.site-header[data-stuck="true"] .header-inner { height: 64px; }

/* brand */
.brand {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.brand-mark {
  display: grid;
  place-items: center;
  flex: none;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: linear-gradient(150deg, rgba(79, 216, 232, 0.95), rgba(79, 216, 232, 0.3));
  color: #03141A;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.02em;
  box-shadow: 0 0 0 1px rgba(79, 216, 232, 0.45), 0 8px 20px -14px var(--cyan);
  transition: box-shadow .25s var(--ease);
}
.brand:hover .brand-mark {
  box-shadow: 0 0 0 1px var(--cyan), 0 10px 24px -12px var(--cyan);
}
.brand-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}
.brand-name {
  font-size: 16px;
  font-weight: 900;
  letter-spacing: 0.06em;
  line-height: 1.15;
  color: var(--fog);
  white-space: nowrap;
}
.brand-tag {
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.24em;
  line-height: 1;
  color: var(--cyan);
  white-space: nowrap;
}

/* capsule nav */
.nav-capsule {
  justify-self: center;
  display: flex;
  align-items: center;
  padding: 5px;
  border: 1px solid var(--line-600);
  border-radius: var(--r-pill);
  background: linear-gradient(180deg, rgba(18, 37, 58, 0.94), rgba(11, 23, 38, 0.94));
  box-shadow: inset 0 1px 0 rgba(232, 242, 247, 0.07), 0 18px 40px -32px #000000;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-item { display: flex; }
.nav-link {
  display: block;
  padding: 8px 14px;
  border-radius: var(--r-pill);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--glacier);
  white-space: nowrap;
  transition: color .22s var(--ease), background-color .22s var(--ease);
}
.nav-link:hover {
  color: var(--fog);
  background: rgba(79, 216, 232, 0.12);
}
.nav-link[aria-current="page"] {
  color: #03141A;
  background: linear-gradient(180deg, #7EE6F1, var(--cyan));
  font-weight: 800;
  box-shadow: 0 6px 18px -12px var(--cyan);
}

/* header cta */
.header-cta {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  background: linear-gradient(180deg, #FF8467, var(--coral));
  color: #1A0703;
  font-size: 13.5px;
  font-weight: 800;
  letter-spacing: 0.02em;
  white-space: nowrap;
  box-shadow: 0 12px 26px -18px var(--coral);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease);
}
.header-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 30px -16px var(--coral);
}
.cta-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #1A0703;
  opacity: 0.72;
}

/* nav toggle */
.nav-toggle {
  display: none;
  justify-self: end;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--line-600);
  border-radius: var(--r-pill);
  background: rgba(18, 37, 58, 0.78);
  color: var(--fog);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}
.nav-toggle:hover { border-color: var(--cyan); color: var(--cyan); }
.nav-toggle-bars {
  display: grid;
  gap: 4px;
  width: 16px;
}
.nav-toggle-bars span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .26s var(--ease), opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:first-child {
  transform: translateY(3px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:last-child {
  transform: translateY(-3px) rotate(-45deg);
}
.nav-toggle-text { display: inline-block; }

/* header ruler */
.header-ruler {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(30, 58, 82, 0.52);
  background: rgba(5, 11, 20, 0.34);
}
.ruler-inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: 6px var(--gutter) 7px;
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  font-variant-numeric: tabular-nums;
  color: rgba(154, 176, 192, 0.8);
}
.ruler-path { white-space: nowrap; }
.ruler-dashes {
  flex: 1;
  height: 1px;
  background: repeating-linear-gradient(to right, rgba(30, 58, 82, 0.95) 0 6px, transparent 6px 14px);
}
.ruler-value {
  flex: none;
  font-weight: 700;
  color: var(--gold);
  white-space: nowrap;
}

/* scroll rail */
.scroll-rail {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  z-index: 3;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
  background: rgba(30, 58, 82, 0.75);
}
.scroll-rail-fill {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan), var(--gold) 68%, var(--coral));
  transition: transform .14s linear;
}

/* ---------- header responsive ---------- */
@media (max-width: 940px) {
  .header-inner {
    grid-template-columns: 1fr auto auto;
    height: 64px;
    gap: 10px;
  }
  .site-header[data-stuck="true"] .header-inner { height: 58px; }

  .brand-text { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-cta { padding: 9px 14px; font-size: 12.5px; }

  .nav-capsule {
    position: fixed;
    left: 50%;
    bottom: calc(var(--service-h) + 14px + env(safe-area-inset-bottom, 0px));
    width: min(460px, calc(100vw - 24px));
    transform: translate(-50%, 26px);
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
    border-radius: 20px;
    z-index: 75;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    background: linear-gradient(180deg, #12253A, #0B1726);
    box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.85), inset 0 1px 0 rgba(232, 242, 247, 0.08);
    transition: opacity .26s var(--ease), transform .3s var(--ease), visibility .26s;
  }
  .nav-capsule[data-open="true"] {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translate(-50%, 0);
  }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 3px;
  }
  .nav-item { display: block; }
  .nav-link {
    padding: 13px 16px;
    font-size: 15px;
    border-radius: 12px;
  }
  .nav-link[aria-current="page"] { border-radius: 12px; }
}

@media (max-width: 640px) {
  .header-ruler { display: none; }
}
@media (max-width: 520px) {
  .nav-toggle-text { display: none; }
  .header-cta { padding: 9px 13px; }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  margin-top: clamp(56px, 9vw, 120px);
  border-top: 1px solid var(--line-600);
  background:
    linear-gradient(180deg, rgba(11, 23, 38, 0.6), rgba(5, 11, 20, 0.97)),
    repeating-linear-gradient(to right, rgba(30, 58, 82, 0.38) 0 1px, transparent 1px 80px);
  padding-top: clamp(38px, 5.5vw, 68px);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3.6vw, 52px);
}

.footer-brand-mark {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--fog);
}
.footer-brand-tag {
  margin-top: 7px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--cyan);
}
.footer-note {
  margin-top: 16px;
  max-width: 26ch;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--glacier);
}

.footer-col-title {
  margin-bottom: 14px;
  font-family: var(--font-num);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--gold);
}
.footer-links { display: grid; gap: 2px; }
.footer-links a {
  display: inline-block;
  padding-block: 5px;
  font-size: 14.5px;
  color: var(--glacier);
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.footer-links a:hover {
  color: var(--fog);
  border-bottom-color: var(--cyan);
}

.footer-contact {
  margin-top: clamp(30px, 4.5vw, 54px);
  padding-top: clamp(22px, 3vw, 34px);
  border-top: 1px dashed rgba(30, 58, 82, 0.85);
}
.contact-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 16px 30px;
}
.contact-item dt {
  margin-bottom: 5px;
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: rgba(154, 176, 192, 0.85);
}
.contact-item dd {
  font-size: 14px;
  line-height: 1.7;
  color: var(--fog);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.footer-legal {
  margin-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid rgba(30, 58, 82, 0.7);
}
.footer-legal-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 22px;
  padding-block: 18px 22px;
  font-family: var(--font-num);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: rgba(154, 176, 192, 0.85);
}

@media (max-width: 900px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-note { max-width: none; }
}

/* ---------- fixed service bar ---------- */
.service-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 70;
  min-height: var(--service-h);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 6px var(--gutter) calc(6px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--line-600);
  background: linear-gradient(180deg, rgba(11, 23, 38, 0.97), rgba(5, 11, 20, 0.99));
  box-shadow: 0 -18px 40px -30px #000000;
}
.service-bar-cta {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 18px;
  border-radius: var(--r-pill);
  background: linear-gradient(180deg, #FF8467, var(--coral));
  color: #1A0703;
  font-size: 12.5px;
  font-weight: 800;
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}
.service-bar-cta::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #1A0703;
  box-shadow: 0 0 0 3px rgba(26, 7, 3, 0.18);
  animation: pulse-dot 2.4s var(--ease) infinite;
}
.service-bar-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px -16px var(--coral);
}
.service-bar-note {
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--glacier);
}

@keyframes pulse-dot {
  0%, 100% { opacity: 0.55; transform: scale(0.86); }
  50%      { opacity: 1;    transform: scale(1); }
}

@media (max-width: 520px) {
  .service-bar-note { display: none; }
  .service-bar-cta { font-size: 13px; padding: 8px 24px; }
}

/* ==========================================================================
   滚动显现
   ========================================================================== */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity .48s var(--ease) var(--d, 0ms),
    transform .48s var(--ease) var(--d, 0ms);
}
[data-reveal].is-in {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   可访问性 / 降低动效
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .skip-link,
  .nav-capsule,
  .nav-link,
  .nav-toggle,
  .nav-toggle-bars span,
  .header-cta,
  .brand-mark,
  .btn,
  .chip,
  .footer-links a,
  .scroll-rail-fill,
  .service-bar-cta {
    transition-duration: .01ms !important;
  }
  .service-bar-cta::before { animation: none; }
  .btn:hover { transform: none; }
}

@media (scripting: none) {
  [data-reveal] { opacity: 1; transform: none; }
}