/* ==========================================================================
   大江体育入口 · 全站共享样式 /assets/site.css
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

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

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

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

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

a { color: inherit; }

/* ---------- tokens ---------- */
:root {
  --ink: #0B1533;
  --deep: #14224A;
  --black: #060B18;
  --white: #F2F5F7;
  --cyan: #23E5D0;
  --mist: #7FF2E4;
  --orange: #FF5A2E;
  --amber: #FFB020;
  --grey: #A8B3C4;
  --paper: #E9EDF1;

  --line: rgba(168, 179, 196, 0.26);
  --line-strong: rgba(168, 179, 196, 0.5);
  --muted: rgba(168, 179, 196, 0.7);
  --grain: rgba(255, 255, 255, 0.016);

  --font-num: "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-head: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-edit: Georgia, "Songti SC", "Noto Serif SC", "SimSun", serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;

  --shell: 1200px;
  --gutter: 24px;

  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --dur-state: 180ms;
  --dur-fold: 260ms;
}

/* ---------- base ---------- */
html { font-size: 16px; }

body {
  min-height: 100%;
  background-color: var(--ink);
  background-image:
    repeating-linear-gradient(0deg, var(--grain) 0 1px, transparent 1px 3px),
    repeating-linear-gradient(90deg, var(--grain) 0 1px, transparent 1px 4px);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

::selection {
  background: var(--cyan);
  color: var(--ink);
}

#main-content { display: block; }

/* ---------- layout ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gutter);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.rule {
  height: 1px;
  border: 0;
  background: var(--line);
  margin: 0;
}

.rule--amber { background: var(--amber); }

/* ---------- skip link ---------- */
.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -72px;
  z-index: 120;
  display: inline-block;
  padding: 10px 18px;
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: top var(--dur-state) var(--ease);
}

.skip-link:focus {
  top: 10px;
}

/* ---------- scroll meter ---------- */
.scroll-meter {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  z-index: 90;
  display: block;
  background: linear-gradient(90deg, var(--cyan), var(--mist));
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
}

/* ---------- masthead ---------- */
.ed-masthead {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(11, 21, 51, 0.96);
  border-bottom: 1px solid var(--line-strong);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.masthead-inner {
  position: relative;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 20px var(--gutter) 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.brand-mark {
  font-family: var(--font-edit);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: 0.18em;
  padding-left: 0.18em;
  color: var(--white);
  text-decoration: none;
  transition: color var(--dur-state) var(--ease);
}

.brand-mark:hover { color: var(--cyan); }

.brand-tagline {
  margin-top: 8px;
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--grey);
  text-align: center;
}

.masthead-anchor {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding: 5px 12px;
  background: var(--deep);
  border: 1px solid var(--line-strong);
  color: var(--white);
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.anchor-dot {
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 90, 46, 0.18);
  animation: anchor-pulse 2.4s var(--ease) infinite;
}

@keyframes anchor-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.masthead-navrow {
  position: relative;
  width: 100%;
  margin-top: 16px;
  padding: 10px 0 12px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 16px;
}

.nav-rule {
  justify-self: start;
  width: 100%;
  max-width: 180px;
  height: 8px;
  background-image: repeating-linear-gradient(90deg, var(--line-strong) 0 1px, transparent 1px 12px);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--white);
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: color var(--dur-state) var(--ease), border-color var(--dur-state) var(--ease);
}

.nav-toggle:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.nav-toggle-bars {
  position: relative;
  display: block;
  width: 14px;
  height: 2px;
  background: currentColor;
  transition: background var(--dur-state) var(--ease);
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 14px;
  height: 2px;
  background: currentColor;
  transition: transform var(--dur-state) var(--ease);
}

.nav-toggle-bars::before { top: -5px; }
.nav-toggle-bars::after { top: 5px; }

[data-nav-toggle][aria-expanded="true"] .nav-toggle-bars { background: transparent; }
[data-nav-toggle][aria-expanded="true"] .nav-toggle-bars::before { transform: translateY(5px) rotate(45deg); }
[data-nav-toggle][aria-expanded="true"] .nav-toggle-bars::after { transform: translateY(-5px) rotate(-45deg); }

.site-nav {
  display: flex;
  justify-content: center;
  min-width: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
}

.nav-list li + li a {
  border-left: 1px solid var(--line);
}

.nav-list a {
  position: relative;
  display: inline-block;
  padding: 6px 18px;
  color: var(--grey);
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur-state) var(--ease);
}

.nav-list a:hover { color: var(--cyan); }

.nav-list a[aria-current="page"] { color: var(--cyan); }

.nav-list a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 0;
  height: 2px;
  background: var(--cyan);
}

.masthead-utility {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 18px;
}

.util-link {
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  color: var(--grey);
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-decoration: none;
  transition: color var(--dur-state) var(--ease), border-color var(--dur-state) var(--ease);
}

.util-link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- footer ---------- */
.site-foot {
  position: relative;
  margin-top: 96px;
  padding: 56px 0 34px;
  background: var(--black);
  border-top: 1px solid var(--line-strong);
  background-image: repeating-linear-gradient(90deg, var(--grain) 0 1px, transparent 1px 5px);
}

.foot-inner {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.foot-anchor {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.foot-anchor-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.foot-anchor-label {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.26em;
  color: var(--grey);
}

.foot-anchor-value {
  font-family: var(--font-edit);
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--white);
}

.foot-scale {
  flex: 1 1 320px;
  max-width: 540px;
  display: flex;
}

.foot-scale li {
  position: relative;
  flex: 1 1 0;
  padding-top: 14px;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums lining-nums;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--grey);
}

.foot-scale li::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: var(--line);
}

.foot-scale li::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 7px;
  background: var(--line-strong);
  transition: height var(--dur-state) var(--ease), background var(--dur-state) var(--ease);
}

.foot-scale li[aria-current="step"] {
  color: var(--cyan);
}

.foot-scale li[aria-current="step"]::after {
  width: 2px;
  height: 12px;
  background: var(--amber);
}

.foot-cols {
  display: grid;
  grid-template-columns: 1fr 1.5fr 1fr;
  gap: 40px;
  padding: 36px 0 30px;
  border-bottom: 1px solid var(--line);
}

.foot-brand {
  font-family: var(--font-edit);
  font-size: 22px;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--white);
  margin-bottom: 12px;
}

.foot-line {
  font-size: 13px;
  line-height: 1.75;
  color: var(--grey);
  letter-spacing: 0.02em;
}

.foot-line--muted {
  margin-top: 12px;
  font-size: 12px;
  color: var(--muted);
}

.foot-col-title {
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-strong);
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.26em;
  color: var(--white);
}

.contact-list {
  display: flex;
  flex-direction: column;
}

.contact-list li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.contact-key {
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--grey);
}

.contact-val {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums lining-nums;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--white);
  word-break: break-word;
}

.copy-btn {
  padding: 4px 10px;
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--grey);
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: color var(--dur-state) var(--ease), border-color var(--dur-state) var(--ease), background var(--dur-state) var(--ease);
}

.copy-btn:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.copy-btn.is-done {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.foot-links ul {
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.foot-links a {
  display: inline-block;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--grey);
  text-decoration: none;
  transition: color var(--dur-state) var(--ease), padding-left var(--dur-state) var(--ease);
}

.foot-links a:hover {
  color: var(--cyan);
  padding-left: 6px;
}

.foot-note {
  max-width: 78ch;
  margin-top: 26px;
  font-size: 12px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- typography pieces ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--grey);
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--amber);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-strong);
}

.section-head__title {
  font-family: var(--font-head);
  font-size: clamp(20px, 2.4vw, 32px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--white);
}

.section-head__note {
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--grey);
}

.prose {
  width: 100%;
  max-width: 64ch;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--white);
}

.prose p { margin-bottom: 16px; }

.prose h2 {
  margin: 40px 0 14px;
  font-family: var(--font-head);
  font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.prose h3 {
  margin: 28px 0 12px;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.35;
}

.prose ul,
.prose ol {
  margin-bottom: 16px;
  padding-left: 20px;
  list-style: disc;
}

.prose ol { list-style: decimal; }

.prose li { margin-bottom: 8px; }

.prose a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(35, 229, 208, 0.4);
}

.prose a:hover { border-bottom-color: var(--cyan); }

.prose strong { font-weight: 700; color: var(--white); }

.prose hr {
  height: 1px;
  margin: 32px 0;
  border: 0;
  background: var(--line);
}

.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.crumbs li {
  display: flex;
  align-items: center;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--grey);
}

.crumbs li + li::before {
  content: "／";
  margin: 0 10px;
  color: var(--line-strong);
}

.crumbs a {
  color: var(--grey);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-state) var(--ease), border-color var(--dur-state) var(--ease);
}

.crumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

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

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  background: transparent;
  border: 1px solid var(--line-strong);
  color: var(--white);
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  cursor: pointer;
  transition: color var(--dur-state) var(--ease), background var(--dur-state) var(--ease), border-color var(--dur-state) var(--ease);
}

.btn:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.btn--primary {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
}

.btn--primary:hover {
  background: var(--mist);
  border-color: var(--mist);
  color: var(--ink);
}

.btn--mark {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

.btn--mark:hover {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink);
}

.btn--quiet {
  border-color: transparent;
  color: var(--grey);
  padding-left: 0;
  padding-right: 0;
}

.btn--quiet:hover {
  color: var(--cyan);
  border-color: transparent;
}

/* ---------- tags ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border: 1px solid currentColor;
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.4;
  white-space: nowrap;
}

.tag--round { color: var(--cyan); }
.tag--metric { color: var(--grey); }
.tag--amber { color: var(--amber); }

.tag--status {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

.tag--paper {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--ink);
}

/* ---------- numbers ---------- */
.num {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums lining-nums;
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 0.86;
  color: var(--white);
}

.num--score { font-size: clamp(72px, 14vw, 160px); }
.num--round { font-size: clamp(40px, 7vw, 72px); color: var(--cyan); }
.num--stat { font-size: clamp(32px, 5vw, 56px); }

/* ---------- media ---------- */
.media {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--deep);
  border: 1px solid var(--line);
}

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

.media--wide { aspect-ratio: 16 / 9; }
.media--band { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 3 / 4; }
.media--square { aspect-ratio: 1 / 1; }

.media__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  padding: 16px;
  background-image:
    repeating-linear-gradient(135deg, rgba(127, 242, 228, 0.06) 0 2px, transparent 2px 9px),
    linear-gradient(160deg, var(--deep), var(--black));
  color: var(--grey);
  font-family: var(--font-head);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
}

.figure { margin: 0; }

.figure__caption {
  margin-top: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--amber);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--grey);
}

/* ---------- accordion ---------- */
.accordion {
  border-top: 1px solid var(--line-strong);
}

.accordion__item {
  border-bottom: 1px solid var(--line);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  background: transparent;
  border: 0;
  text-align: left;
  color: var(--white);
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: color var(--dur-state) var(--ease);
}

.accordion__trigger:hover { color: var(--cyan); }

.accordion__sign {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  border: 1px solid var(--line-strong);
  color: inherit;
  transition: border-color var(--dur-state) var(--ease), background var(--dur-state) var(--ease);
}

.accordion__sign::before,
.accordion__sign::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform var(--dur-state) var(--ease), opacity var(--dur-state) var(--ease);
}

.accordion__sign::before {
  left: 5px;
  right: 5px;
  top: 10px;
  height: 1px;
}

.accordion__sign::after {
  top: 5px;
  bottom: 5px;
  left: 10px;
  width: 1px;
}

.accordion__trigger[aria-expanded="true"] { color: var(--cyan); }
.accordion__trigger[aria-expanded="true"] .accordion__sign { border-color: var(--cyan); }
.accordion__trigger[aria-expanded="true"] .accordion__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.accordion__panel {
  padding-bottom: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--grey);
}

.accordion__panel > * { max-width: 62ch; }

.accordion__panel[hidden] { display: none; }

@keyframes panel-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

.accordion__panel:not([hidden]) {
  animation: panel-in var(--dur-fold) var(--ease);
}

/* ---------- horizontal rail ---------- */
.rail {
  position: relative;
  border-top: 1px solid var(--line-strong);
  padding-top: 24px;
}

.rail__scale {
  display: flex;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}

.rail__node {
  position: relative;
  flex: 1 0 auto;
  min-width: 86px;
  padding: 16px 12px 8px 0;
  background: transparent;
  border: 0;
  text-align: left;
  color: var(--grey);
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums lining-nums;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color var(--dur-state) var(--ease);
}

.rail__node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 10px;
  background: var(--line-strong);
  transition: height var(--dur-state) var(--ease), background var(--dur-state) var(--ease);
}

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

.rail__node.is-active { color: var(--cyan); }

.rail__node.is-active::before {
  height: 16px;
  background: var(--amber);
}

/* ---------- reveal ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 320ms var(--ease), transform 320ms var(--ease);
}

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

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .foot-cols {
    grid-template-columns: 1fr 1fr;
  }
  .foot-identity {
    grid-column: 1 / -1;
  }
}

@media (max-width: 900px) {
  :root { --gutter: 18px; }

  .masthead-inner {
    padding-top: 16px;
    align-items: flex-start;
  }

  .brand-mark { align-self: center; }
  .brand-tagline { align-self: center; }

  .masthead-anchor {
    position: absolute;
    right: var(--gutter);
    top: 20px;
    margin-top: 0;
    font-size: 11px;
    letter-spacing: 0.06em;
  }

  .masthead-navrow {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 12px;
    margin-top: 18px;
  }

  .nav-rule { display: none; }

  .nav-toggle {
    display: inline-flex;
    grid-column: 1;
    justify-self: start;
  }

  .site-nav {
    position: absolute;
    left: calc(-1 * var(--gutter));
    right: calc(-1 * var(--gutter));
    top: calc(100% + 1px);
    display: none;
    flex-direction: column;
    justify-content: flex-start;
    background: var(--deep);
    border-top: 1px solid var(--line-strong);
    border-bottom: 1px solid var(--line-strong);
    box-shadow: 0 24px 48px rgba(6, 11, 24, 0.65);
    z-index: 50;
  }

  .site-nav[data-open] { display: flex; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .nav-list li + li a {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .nav-list a {
    display: block;
    padding: 14px var(--gutter);
    font-size: 16px;
  }

  .nav-list a[aria-current="page"]::after {
    left: var(--gutter);
    right: auto;
    width: 26px;
    bottom: 10px;
  }

  .masthead-utility {
    grid-column: 2;
    justify-self: end;
  }

  .site-foot { margin-top: 64px; padding-top: 40px; }

  .foot-anchor { gap: 18px; }

  .foot-scale {
    flex: 1 1 100%;
    max-width: none;
  }

  .foot-cols {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
    padding: 30px 0 24px;
  }

  .contact-list li {
    grid-template-columns: 76px minmax(0, 1fr) auto;
    gap: 10px;
  }
}

@media (max-width: 640px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }

  .brand-tagline { letter-spacing: 0.16em; }

  .masthead-anchor {
    position: static;
    align-self: center;
    margin-top: 14px;
  }

  .contact-list li {
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      "key btn"
      "val val";
    row-gap: 6px;
  }

  .contact-key { grid-area: key; }
  .contact-val { grid-area: val; }
  .copy-btn { grid-area: btn; }

  .num--score { font-size: clamp(60px, 22vw, 110px); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

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

  .anchor-dot { animation: none !important; opacity: 1; }
}