/* ==========================================================================
   浩瀚体育 · /assets/site.css
   共享外壳样式：reset / 变量 / 中文排版 / 品牌轨道 / 刊头导航 / 页脚 / 通用组件
   ========================================================================== */

/* 1. reset ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 150px;
}
body, h1, h2, h3, h4, h5, p, ul, ol, li, figure, blockquote, dl, dd { margin: 0; padding: 0; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
img, svg, video { display: block; max-width: 100%; height: auto; }
table { border-collapse: collapse; width: 100%; }
input, select, textarea { font: inherit; color: inherit; }

/* 2. 变量 ---------------------------------------------------------------- */
:root {
  /* 色彩：深蓝绿底色 + 荧光青 / 赛场橙 双强调 */
  --bg-deep: #06181C;
  --panel: #0B2429;
  --card: #123138;
  --grid: #1E4A52;
  --grid-soft: rgba(30, 74, 82, 0.55);
  --cyan: #46F2D0;
  --cyan-dim: #1FA391;
  --orange: #FF8A3D;
  --orange-soft: #FFC08A;
  --text: #EAF6F5;
  --muted: #9BB8B6;
  --faint: #6C8A8B;
  --focus: #FFE9A8;
  --ink: #04191C;
  --ink-warm: #241008;

  /* 字体 */
  --font-head: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", system-ui, sans-serif;
  --font-data: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --fs-display: clamp(2.8rem, 7vw, 5.5rem);
  --fs-h1: clamp(2rem, 3.6vw, 3rem);
  --fs-h2: 1.5rem;
  --fs-h3: 1.15rem;
  --fs-body: 1rem;
  --fs-caption: 0.8125rem;

  /* 结构与节奏 */
  --rail-w: 88px;
  --shell: 5vw;
  --gap: 24px;
  --maxw: 1560px;
  --r-lg: 20px;
  --r-md: 14px;
  --r-pill: 999px;

  --t-micro: 120ms;
  --t-state: 220ms;
  --t-enter: 420ms;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* 3. 基础排版 ------------------------------------------------------------- */
body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-left: var(--rail-w);
  background-color: var(--bg-deep);
  background-image:
    radial-gradient(120% 80% at 88% -10%, rgba(70, 242, 208, 0.07), transparent 60%),
    radial-gradient(80% 60% at 0% 100%, rgba(255, 138, 61, 0.05), transparent 65%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.75;
  font-weight: 400;
  letter-spacing: 0.01em;
}
#main-content { flex: 1 1 auto; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.18;
  color: var(--text);
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); font-weight: 700; }
h3 { font-size: var(--fs-h3); font-weight: 700; }
h4 { font-size: 1rem; font-weight: 700; }
p { line-height: 1.75; }
strong, b { font-weight: 700; }
code, kbd, samp, time, .mono { font-family: var(--font-data); letter-spacing: 0; }
::selection { background: var(--cyan); color: var(--ink); }

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

.skip-link {
  position: fixed;
  left: calc(var(--rail-w) + 16px);
  top: -120px;
  z-index: 300;
  padding: 10px 20px;
  border-radius: var(--r-pill);
  background: var(--cyan);
  color: var(--ink);
  font-weight: 800;
  font-size: 0.875rem;
  transition: top var(--t-state) var(--ease);
}
.skip-link:focus { top: 16px; }

/* 4. 布局容器 ------------------------------------------------------------- */
.shell { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--shell); }
.section { padding-block: clamp(44px, 6vw, 88px); }
.section + .section { border-top: 1px solid var(--grid-soft); }
.rule { height: 1px; border: 0; background: var(--grid); }

.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--gap); }
.col-3 { grid-column: span 3; }
.col-4 { grid-column: span 4; }
.col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; }
.col-7 { grid-column: span 7; }
.col-8 { grid-column: span 8; }
.col-12 { grid-column: span 12; }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 20px;
  margin-bottom: clamp(20px, 3vw, 36px);
}
.section-head__index {
  font-family: var(--font-data);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--orange);
}
.section-head__title { font-size: var(--fs-h2); font-weight: 700; letter-spacing: -0.02em; }
.section-head__lede { flex: 1 1 100%; max-width: 62ch; color: var(--muted); font-size: 0.9375rem; }

.prose { max-width: 68ch; color: var(--text); }
.prose p + p { margin-top: 1.05em; }
.prose h2 { margin: 1.8em 0 0.6em; }
.prose h3 { margin: 1.5em 0 0.5em; }
.prose ul { margin: 1em 0; }
.prose ul li { position: relative; padding-left: 20px; margin-top: 0.45em; color: var(--muted); }
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 10px;
  height: 1px;
  background: var(--cyan);
}
.prose a { color: var(--cyan); border-bottom: 1px solid rgba(70, 242, 208, 0.35); }
.prose a:hover { border-bottom-color: var(--cyan); }

.lede { font-size: 1.0625rem; color: var(--muted); max-width: 64ch; line-height: 1.8; }
.eyebrow {
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--cyan);
  text-transform: uppercase;
}

/* 5. 品牌轨道 ------------------------------------------------------------- */
.brand-rail {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--rail-w);
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 18px 0 22px;
  background: var(--panel);
  border-right: 1px solid var(--grid);
}
.rail__brand { display: block; }
.rail__brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: var(--r-md);
  background: linear-gradient(150deg, var(--cyan), var(--cyan-dim));
  color: var(--ink);
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0;
}
.rail__nav {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding-top: 8px;
}
.rail__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  padding: 11px 6px;
  border-radius: var(--r-pill);
  color: var(--muted);
  transition: color var(--t-state) var(--ease), background-color var(--t-micro) linear;
}
.rail__link:hover { color: var(--cyan); background: var(--card); }
.rail__num {
  font-family: var(--font-data);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--faint);
  transition: color var(--t-state) linear;
}
.rail__label {
  writing-mode: vertical-rl;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}
.rail__link[aria-current="page"],
.rail__link.is-active { color: var(--cyan); }
.rail__link[aria-current="page"] .rail__num,
.rail__link.is-active .rail__num { color: var(--orange); }
.rail__link[aria-current="page"] { background: var(--card); }
.rail__foot {
  writing-mode: vertical-rl;
  padding: 12px 5px;
  border: 1px solid var(--grid);
  border-radius: var(--r-pill);
  font-family: var(--font-data);
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  color: var(--faint);
  transition: color var(--t-state) linear, border-color var(--t-state) linear;
}
.rail__foot:hover { color: var(--orange); border-color: var(--orange); }

/* 6. 刊头与导航 ----------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 150;
  background: linear-gradient(180deg, rgba(6, 24, 28, 0.99), rgba(6, 24, 28, 0.93));
  border-bottom: 1px solid var(--grid);
  backdrop-filter: blur(8px);
}
.masthead { border-bottom: 1px solid var(--grid-soft); }
.masthead__grid {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 18px var(--shell) 12px;
  display: grid;
  grid-template-columns: 3fr 5fr 4fr;
  gap: var(--gap);
  align-items: end;
}
.masthead__lead { display: flex; align-items: flex-end; padding-bottom: 6px; }
.masthead__kicker {
  font-family: var(--font-data);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--muted);
  line-height: 1.6;
}
.masthead__brand { text-align: center; }
.masthead__logo {
  display: inline-block;
  font-family: var(--font-head);
  font-size: clamp(1.75rem, 3.1vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--text);
  transition: color var(--t-state) linear;
}
.masthead__logo:hover { color: var(--cyan); }
.masthead__sub {
  margin-top: 4px;
  font-family: var(--font-data);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--faint);
}
.masthead__aside {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  padding-bottom: 4px;
}
.masthead__meta {
  font-family: var(--font-data);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.cta-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--r-pill);
  background: var(--orange);
  color: var(--ink-warm);
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  transition: background-color var(--t-state) linear, color var(--t-state) linear;
}
.cta-pill::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.cta-pill:hover { background: var(--orange-soft); }

.nav-bar {
  position: relative;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--shell);
  display: flex;
  align-items: center;
}
.site-nav {
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}
.site-nav__list {
  grid-column: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(6px, 1.8vw, 26px);
}
.site-nav__utility {
  grid-column: 3;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}
.site-nav__link {
  position: relative;
  display: inline-block;
  padding: 14px 2px;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--muted);
  transition: color var(--t-state) linear;
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 9px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t-state) var(--ease), background-color var(--t-state) linear;
}
.site-nav__link:hover { color: var(--text); }
.site-nav__link:hover::after { transform: scaleX(1); background: var(--grid); }
.site-nav__link[aria-current="page"] { color: var(--cyan); }
.site-nav__link[aria-current="page"]::after { transform: scaleX(1); background: var(--cyan); }
.site-nav__util {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid var(--grid);
  border-radius: var(--r-pill);
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  transition: color var(--t-state) linear, border-color var(--t-state) linear;
}
.site-nav__util:hover { color: var(--cyan); border-color: var(--cyan); }
.site-nav__util[aria-current="page"] { color: var(--cyan); border-color: var(--cyan); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border: 1px solid var(--grid);
  border-radius: var(--r-pill);
  color: var(--text);
  font-size: 0.875rem;
  font-weight: 700;
  transition: border-color var(--t-state) linear, color var(--t-state) linear;
}
.nav-toggle:hover { border-color: var(--cyan); color: var(--cyan); }
.nav-toggle__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: background-color var(--t-micro) linear;
}
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--t-state) var(--ease);
}
.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: var(--grid-soft);
  overflow: hidden;
}
.scroll-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--cyan-dim), var(--cyan));
}

/* 7. 页脚 ---------------------------------------------------------------- */
.site-footer {
  margin-top: auto;
  background: var(--panel);
  border-top: 1px solid var(--grid);
}
.footer__band { padding: clamp(36px, 5vw, 64px) 0 clamp(28px, 4vw, 48px); }
.footer__inner { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--shell); }
.footer__grid {
  display: grid;
  grid-template-columns: 4fr 5fr 3fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}
.footer__logo {
  font-family: var(--font-head);
  font-size: 1.375rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.footer__tagline { margin-top: 10px; font-size: 0.9375rem; color: var(--text); }
.footer__note {
  margin-top: 10px;
  max-width: 34ch;
  font-size: var(--fs-caption);
  line-height: 1.7;
  color: var(--faint);
}
.footer__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }

.footer__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.footer__heading {
  font-family: var(--font-data);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  color: var(--orange);
  margin-bottom: 12px;
}
.footer__links { display: flex; flex-direction: column; gap: 8px; }
.footer__link {
  position: relative;
  display: inline-block;
  padding-left: 12px;
  font-size: 0.9375rem;
  color: var(--muted);
  transition: color var(--t-state) linear;
}
.footer__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 6px;
  height: 1px;
  background: var(--grid);
  transition: background-color var(--t-state) linear, width var(--t-state) var(--ease);
}
.footer__link:hover { color: var(--cyan); }
.footer__link:hover::before { width: 10px; background: var(--cyan); }
.footer__link[aria-current="page"] { color: var(--cyan); }
.footer__link[aria-current="page"]::before { width: 10px; background: var(--orange); }

.footer__contact { min-width: 0; }
.footer__contact-list { display: flex; flex-direction: column; gap: 10px; }
.footer__contact-item { display: flex; flex-direction: column; gap: 2px; }
.footer__contact-label {
  font-family: var(--font-data);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  color: var(--faint);
}
.footer__contact-value {
  font-family: var(--font-data);
  font-size: 0.8125rem;
  color: var(--text);
  word-break: break-all;
}
.footer__hint {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--grid-soft);
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--faint);
}

.footer__legal { border-top: 1px solid var(--grid); background: var(--bg-deep); }
.footer__legal-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
  align-items: center;
  padding-block: 16px;
}
.footer__icp,
.footer__copy,
.footer__meta {
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: var(--faint);
}
.footer__icp { color: var(--muted); }

/* 8. 通用组件 ------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border: 1px solid var(--grid);
  border-radius: var(--r-pill);
  background: var(--card);
  color: var(--text);
  font-size: 0.9375rem;
  font-weight: 700;
  transition: color var(--t-state) linear, border-color var(--t-state) linear, background-color var(--t-state) linear;
}
.btn:hover { color: var(--cyan); border-color: var(--cyan); }
.btn--primary { background: var(--orange); border-color: var(--orange); color: var(--ink-warm); }
.btn--primary:hover { background: var(--orange-soft); border-color: var(--orange-soft); color: var(--ink-warm); }
.btn--ghost { background: transparent; }

.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border: 1px solid var(--grid);
  border-radius: var(--r-pill);
  font-family: var(--font-data);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.tag--cyan { color: var(--cyan); border-color: rgba(70, 242, 208, 0.4); }
.tag--orange { color: var(--orange-soft); border-color: rgba(255, 138, 61, 0.45); }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 16px 0 4px;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.breadcrumb a { color: var(--muted); transition: color var(--t-state) linear; }
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb__sep { color: var(--grid); }
.breadcrumb [aria-current="page"] { color: var(--cyan); }

.card {
  background: var(--card);
  border: 1px solid var(--grid);
  border-radius: var(--r-lg);
  padding: clamp(16px, 2vw, 24px);
  transition: border-color var(--t-state) linear;
}
.card:hover { border-color: rgba(70, 242, 208, 0.5); }
.card__label {
  font-family: var(--font-data);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.card__title { margin-top: 8px; font-size: var(--fs-h3); font-weight: 700; letter-spacing: -0.02em; }
.card__text { margin-top: 8px; font-size: 0.9375rem; color: var(--muted); }

.stat-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--grid);
  border-radius: var(--r-lg);
  background: var(--card);
}
.stat-card__label {
  font-family: var(--font-data);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.stat-card__value {
  font-family: var(--font-data);
  font-size: 1.75rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--cyan);
}
.stat-card__note { font-size: var(--fs-caption); color: var(--faint); }

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 14px 0;
  border-top: 1px solid var(--grid);
  border-bottom: 1px solid var(--grid);
}
.filter-btn {
  padding: 8px 16px;
  border: 1px solid var(--grid);
  border-radius: var(--r-pill);
  font-family: var(--font-data);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--muted);
  transition: color var(--t-state) linear, border-color var(--t-state) linear, background-color var(--t-state) linear;
}
.filter-btn:hover { color: var(--cyan); border-color: var(--cyan); }
.filter-btn[aria-pressed="true"] { background: var(--cyan); border-color: var(--cyan); color: var(--ink); }
.filter-bar__count {
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--faint);
}
[data-filter-item] { transition: opacity var(--t-micro) linear; }
.is-dim { opacity: 0; }
.is-hidden { display: none; }

/* 9. 媒体容器（页面阶段放置图片占位） ------------------------------------ */
.media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--grid);
  border-radius: var(--r-lg);
  background: var(--card);
}
.media--wide { aspect-ratio: 16 / 9; }
.media--std { aspect-ratio: 4 / 3; }
.media--square { aspect-ratio: 1 / 1; }
.media--portrait { aspect-ratio: 3 / 4; }
.media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05) brightness(0.95);
}
.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(155deg, rgba(70, 242, 208, 0.16), rgba(6, 24, 28, 0.42));
}
.media--warm::after {
  background: linear-gradient(155deg, rgba(255, 138, 61, 0.16), rgba(6, 24, 28, 0.44));
}
.media--grid::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(70, 242, 208, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(70, 242, 208, 0.14) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 85%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 85%);
}
.media > * { z-index: 2; }
.media__tag {
  position: absolute;
  left: 14px;
  top: 14px;
  padding: 4px 12px;
  border-radius: var(--r-pill);
  background: rgba(6, 24, 28, 0.78);
  border: 1px solid var(--grid);
  font-family: var(--font-data);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--cyan);
}
.media__caption {
  margin-top: 10px;
  font-family: var(--font-data);
  font-size: var(--fs-caption);
  color: var(--muted);
}

/* 10. 动效与响应式 ------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--t-enter) var(--ease), transform var(--t-enter) var(--ease);
}
[data-reveal].is-in { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  :root { --rail-w: 0px; }
  html { scroll-padding-top: 120px; }
  body { padding-left: 0; padding-bottom: 74px; }
  .skip-link { left: 16px; }
  .brand-rail {
    inset: auto 0 0 0;
    width: auto;
    flex-direction: row;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-right: 0;
    border-top: 1px solid var(--grid);
    background: rgba(11, 36, 41, 0.97);
    backdrop-filter: blur(8px);
    overflow-x: auto;
    overflow-y: hidden;
  }
  .rail__brand-mark { width: 34px; height: 34px; border-radius: 10px; font-size: 0.9375rem; }
  .rail__nav {
    flex: 1 1 auto;
    flex-direction: row;
    align-items: center;
    gap: 6px;
    padding-top: 0;
  }
  .rail__link {
    flex-direction: row;
    gap: 6px;
    padding: 8px 12px;
    white-space: nowrap;
  }
  .rail__label { writing-mode: horizontal-tb; font-size: 0.8125rem; letter-spacing: 0.04em; }
  .rail__num { display: none; }
  .rail__foot {
    writing-mode: horizontal-tb;
    padding: 8px 14px;
    font-size: 0.6875rem;
    letter-spacing: 0.1em;
    white-space: nowrap;
  }
}

@media (max-width: 900px) {
  .masthead__grid {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    gap: 10px;
    padding: 14px var(--shell) 12px;
  }
  .masthead__brand { order: 1; }
  .masthead__aside { order: 2; align-items: center; }
  .masthead__lead { order: 3; justify-content: center; padding-bottom: 0; }
  .masthead__kicker { text-align: center; }

  .nav-bar { justify-content: space-between; padding-block: 8px; }
  .nav-toggle { display: inline-flex; }
  .site-nav { display: none; flex: 0 0 auto; }
  .site-nav[data-open="true"] {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 140;
    max-height: 72vh;
    overflow-y: auto;
    padding: 8px var(--shell) 20px;
    background: var(--panel);
    border-bottom: 1px solid var(--grid);
    box-shadow: 0 18px 32px rgba(2, 12, 14, 0.55);
  }
  .site-nav[data-open="true"] .site-nav__list {
    grid-column: auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .site-nav[data-open="true"] .site-nav__link {
    display: block;
    padding: 14px 4px;
    border-bottom: 1px solid var(--grid-soft);
    font-size: 1.0625rem;
  }
  .site-nav[data-open="true"] .site-nav__link::after { display: none; }
  .site-nav[data-open="true"] .site-nav__utility {
    grid-column: auto;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 10px;
    padding-top: 16px;
  }

  .grid { grid-template-columns: repeat(6, 1fr); }
  .col-3, .col-4, .col-5, .col-6, .col-7, .col-8 { grid-column: span 6; }
}

@media (max-width: 720px) {
  .footer__grid { grid-template-columns: 1fr; }
  .footer__cols { grid-template-columns: repeat(2, 1fr); gap: 20px 16px; }
  .footer__note { max-width: none; }
}

@media (max-width: 520px) {
  .rail__foot { display: none; }
  .footer__cols { grid-template-columns: 1fr; }
  .footer__legal-inner { flex-direction: column; align-items: flex-start; gap: 6px; }
}

@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;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}