/* ==========================================================================
   易胜博登陆平台中文站 · 共享外框样式 /assets/site.css
   夜航图 × 刊物报头：深海蓝分区、青色描边、琥珀金数字
   ========================================================================== */

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

/* ---------- 2. Tokens ---------- */
:root {
  --deep-sea: #071C2E;
  --night-navy: #0F3350;
  --electric-cyan: #2BE3DA;
  --cyan-ink: #0C7C74;
  --amber-gold: #FFB43C;
  --amber-deep: #8A5A00;
  --violet: #7A5CFF;
  --violet-ink: #4A32C7;
  --coral: #FF7A5C;
  --coral-ink: #B33A1E;
  --claret: #9E2B5B;
  --paper: #F2F5F8;
  --ink: #0B1116;
  --slate: #7C8FA3;

  --surface: var(--paper);
  --surface-alt: #E6ECF2;
  --text: var(--ink);
  --text-inverse: var(--paper);
  --text-muted: var(--slate);
  --rule: rgba(11, 17, 22, .14);
  --rule-inverse: rgba(242, 245, 248, .16);

  --font-display: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  --font-editorial: "Songti SC", "STSong", "SimSun", Georgia, "Times New Roman", serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, "Courier New", monospace;

  --step-1: .875rem;
  --step-2: 1rem;
  --step-3: clamp(1.03rem, 1.3vw, 1.125rem);
  --step-4: clamp(1.28rem, 2vw, 1.5rem);
  --step-5: clamp(1.6rem, 3vw, 2.125rem);
  --step-6: clamp(2rem, 5vw, 3.25rem);
  --step-7: clamp(2.5rem, 8vw, 4.75rem);

  --shell: 1220px;
  --gutter: clamp(20px, 5vw, 64px);
  --space-1: .5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;

  --radius-xs: 4px;
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --shadow-soft: 0 22px 48px -30px rgba(7, 28, 46, .55);
  --shadow-lift: 0 34px 64px -34px rgba(7, 28, 46, .6);
}

/* ---------- 3. Base ---------- */
body {
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--step-3);
  line-height: 1.8;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -.015em;
  line-height: 1.24;
  text-wrap: balance;
}
p { text-wrap: pretty; }
::selection { background: var(--electric-cyan); color: var(--deep-sea); }
a:focus-visible, button:focus-visible, summary:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--electric-cyan);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}
.numeric {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}

/* ---------- 4. Layout helpers ---------- */
.shell {
  width: min(100% - (var(--gutter) * 2), var(--shell));
  margin-inline: auto;
}
.grid { display: grid; gap: clamp(16px, 2.4vw, 32px); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(215px, 1fr)); }
.grid--split { grid-template-columns: minmax(0, 1fr); }
@media (min-width: 900px) {
  .grid--split { grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: clamp(24px, 3vw, 56px); }
}

.section { padding: clamp(42px, 7vw, 96px) 0; }
.section--tight { padding-top: 0; }
.section--paper { background: var(--paper); color: var(--text); }
.section--alt { background: var(--surface-alt); color: var(--text); }
.section--navy { background: var(--night-navy); color: var(--text-inverse); }
.section--deep { background: var(--deep-sea); color: var(--text-inverse); }
.section--claret { background: var(--claret); color: var(--paper); }
.section--violet { background: var(--violet); color: var(--paper); }
.section--navy .section__lead, .section--deep .section__lead, .section--claret .section__lead {
  color: rgba(242, 245, 248, .78);
}

.section__head { margin-bottom: clamp(22px, 3vw, 40px); }
.section__title { font-size: var(--step-5); }
.section__lead {
  margin-top: var(--space-2);
  max-width: 42em;
  font-size: var(--step-2);
  color: var(--text-muted);
}

.chapter { display: flex; align-items: center; gap: clamp(.7rem, 1.6vw, 1.2rem); margin-bottom: var(--space-2); }
.chapter__num {
  font-family: var(--font-mono);
  font-size: var(--step-2);
  letter-spacing: .1em;
  color: var(--amber-gold);
}
.chapter__label { font-size: var(--step-1); letter-spacing: .26em; opacity: .78; }
.chapter__rule { flex: 1; height: 1px; background: currentColor; opacity: .22; min-width: 24px; }
.section--paper .chapter__num, .section--alt .chapter__num { color: var(--cyan-ink); }

.band {
  padding: clamp(20px, 3vw, 34px) 0;
  background: var(--night-navy);
  color: var(--paper);
}
.band--cyan { background: linear-gradient(90deg, var(--electric-cyan), #0FB9C4 70%, var(--violet)); color: var(--deep-sea); }
.band--claret { background: var(--claret); }
.band__track {
  display: flex;
  gap: clamp(16px, 2.6vw, 38px);
  overflow-x: auto;
  padding-bottom: .6rem;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}
.band__item { flex: 0 0 auto; min-width: min(78vw, 320px); scroll-snap-align: start; }
.band__track::-webkit-scrollbar { height: 6px; }
.band__track::-webkit-scrollbar-thumb { background: rgba(43, 227, 218, .45); border-radius: 999px; }

/* ---------- 5. Buttons / tags / filter ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .94rem;
  letter-spacing: .06em;
  line-height: 1;
  padding: .85rem 1.5rem;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s var(--ease), background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn--amber { background: var(--amber-gold); color: var(--deep-sea); }
.btn--amber:hover { background: #FFC463; }
.btn--cyan { background: var(--electric-cyan); color: var(--deep-sea); }
.btn--ghost { background: transparent; color: var(--paper); border-color: var(--rule-inverse); }
.btn--ghost:hover { border-color: var(--electric-cyan); color: var(--electric-cyan); }
.btn--line { background: transparent; color: var(--cyan-ink); border-color: rgba(12, 124, 116, .45); }
.btn--line:hover { background: rgba(12, 124, 116, .08); }
.btn--sm { padding: .62rem 1.1rem; font-size: .84rem; }
.btn--block { width: 100%; }

.tag {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .78rem;
  letter-spacing: .1em;
  padding: .32rem .72rem;
  border-radius: 999px;
  background: rgba(43, 227, 218, .16);
  color: var(--cyan-ink);
}
.tag--violet { background: rgba(122, 92, 255, .16); color: var(--violet-ink); }
.tag--coral { background: rgba(255, 122, 92, .2); color: var(--coral-ink); }
.tag--amber { background: rgba(255, 180, 60, .22); color: var(--amber-deep); }

.filter { display: flex; flex-wrap: wrap; gap: .5rem; }
.filter__btn {
  font-family: var(--font-display);
  font-size: .86rem;
  letter-spacing: .06em;
  padding: .55rem 1.05rem;
  border-radius: 999px;
  border: 1px solid var(--rule);
  background: rgba(255, 255, 255, .6);
  color: var(--text-muted);
  cursor: pointer;
  transition: color .18s var(--ease), background-color .18s var(--ease), border-color .18s var(--ease);
}
.filter__btn:hover { color: var(--cyan-ink); border-color: rgba(12, 124, 116, .5); }
.filter__btn[aria-pressed="true"] {
  background: var(--deep-sea);
  border-color: var(--deep-sea);
  color: var(--electric-cyan);
}

/* ---------- 6. Cards ---------- */
.card {
  position: relative;
  background: #FFFFFF;
  color: var(--text);
  border-radius: var(--radius-md);
  padding: clamp(20px, 2.4vw, 30px);
  box-shadow: var(--shadow-soft);
}
.card--plain { background: transparent; box-shadow: none; border: 1px solid var(--rule); }
.card--navy { background: var(--night-navy); color: var(--paper); box-shadow: var(--shadow-lift); }
.card--deep { background: var(--deep-sea); color: var(--paper); box-shadow: var(--shadow-lift); }
.card--claret { background: var(--claret); color: var(--paper); box-shadow: var(--shadow-lift); }
.card__label {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--amber-gold);
}
.card__title { margin-top: .5rem; font-size: var(--step-4); }
.card__text { margin-top: .6rem; font-size: var(--step-2); line-height: 1.75; opacity: .88; }
.card__link {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  margin-top: var(--space-2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .9rem;
  color: var(--cyan-ink);
  border-bottom: 1px solid rgba(12, 124, 116, .4);
}
.card--navy .card__link, .card--deep .card__link, .card--claret .card__link {
  color: var(--electric-cyan);
  border-color: rgba(43, 227, 218, .5);
}

/* ---------- 7. Media ---------- */
.figure { display: grid; gap: .7rem; }
.figure__caption { font-size: .85rem; line-height: 1.65; color: var(--text-muted); }
.media {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background:
    radial-gradient(120% 130% at 22% 12%, rgba(43, 227, 218, .28), transparent 58%),
    linear-gradient(140deg, var(--deep-sea), var(--night-navy) 62%, rgba(122, 92, 255, .5));
}
.media__img { width: 100%; height: 100%; object-fit: cover; }
.media--hero { aspect-ratio: 16 / 10; border-radius: var(--radius-lg); }
.media--wide { aspect-ratio: 21 / 9; }
.media--landscape { aspect-ratio: 4 / 3; }
.media--square { aspect-ratio: 1 / 1; }
.media--portrait { aspect-ratio: 3 / 4; }

/* ---------- 8. Prose ---------- */
.prose { max-width: min(100%, 42em); }
.prose > * + * { margin-top: var(--space-3); }
.prose h2 { font-size: var(--step-5); }
.prose h3 { font-size: var(--step-4); }
.prose h2 + p, .prose h3 + p { margin-top: var(--space-2); }
.prose ul, .prose ol { padding-left: 1.3em; list-style: disc; }
.prose ol { list-style: decimal; }
.prose li + li { margin-top: .5rem; }
.prose a { color: var(--cyan-ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(12, 124, 116, .5); }
.prose strong { font-weight: 700; }
.prose blockquote {
  border-left: 3px solid var(--electric-cyan);
  padding: .4rem 0 .4rem 1.2rem;
  color: var(--text-muted);
  font-family: var(--font-editorial);
  font-size: var(--step-4);
  line-height: 1.6;
}
.prose code {
  font-family: var(--font-mono);
  font-size: .92em;
  background: rgba(11, 17, 22, .06);
  padding: .12em .4em;
  border-radius: var(--radius-xs);
}
.prose hr { border: 0; height: 1px; background: var(--rule); }

/* ---------- 9. Breadcrumbs / toc / table / accordion ---------- */
.breadcrumbs { font-size: .85rem; color: var(--text-muted); }
.breadcrumbs__list { display: flex; flex-wrap: wrap; align-items: center; gap: .45rem; }
.breadcrumbs__item { display: inline-flex; align-items: center; }
.breadcrumbs__item::after { content: "/"; margin-left: .45rem; color: rgba(11, 17, 22, .28); }
.breadcrumbs__item:last-child::after { display: none; }
.breadcrumbs__link { color: var(--cyan-ink); }
.breadcrumbs__link[aria-current="page"] { color: var(--text-muted); }

.toc { position: sticky; top: 1.5rem; font-size: .92rem; }
.toc__title {
  font-family: var(--font-display);
  font-size: .78rem;
  letter-spacing: .22em;
  color: var(--text-muted);
  margin-bottom: .9rem;
}
.toc__list { display: grid; gap: .4rem; border-left: 1px solid var(--rule); padding-left: 1rem; }
.toc__link { display: block; padding: .12rem 0; color: var(--text-muted); transition: color .18s var(--ease); }
.toc__link:hover { color: var(--cyan-ink); }
.toc__link[aria-current="true"] { color: var(--ink); font-weight: 700; }

.table { font-size: var(--step-2); }
.table caption { text-align: left; padding-bottom: .7rem; font-size: .85rem; color: var(--text-muted); }
.table th, .table td { padding: .85rem 1rem; text-align: left; border-bottom: 1px solid var(--rule); }
.table th { font-size: .8rem; font-weight: 600; letter-spacing: .12em; color: var(--text-muted); }
.table .numeric { color: var(--amber-deep); }
.table--striped tbody tr:nth-child(odd) { background: rgba(11, 17, 22, .03); }

.accordion { border-top: 1px solid var(--rule); }
.accordion__item { border-bottom: 1px solid var(--rule); }
.accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 0;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-3);
  list-style: none;
}
.accordion__trigger::-webkit-details-marker { display: none; }
.accordion__trigger::after { content: "+"; font-family: var(--font-mono); color: var(--cyan-ink); }
.accordion__item[open] .accordion__trigger::after { content: "–"; }
.accordion__panel { padding: 0 0 1.35rem; max-width: 42em; font-size: var(--step-2); line-height: 1.8; }

/* ---------- 10. Header ---------- */
.skip-link {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translate(-50%, -150%);
  z-index: 80;
  padding: .7rem 1.4rem;
  background: var(--amber-gold);
  color: var(--deep-sea);
  font-weight: 700;
  font-size: .9rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  transition: transform .18s var(--ease);
}
.skip-link:focus { transform: translate(-50%, 0); }

.scroll-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  z-index: 70;
  background: rgba(7, 28, 46, .12);
  pointer-events: none;
}
.scroll-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--electric-cyan), var(--violet) 58%, var(--amber-gold));
  transition: width .12s linear;
}

.site-header { position: relative; z-index: 40; background: var(--deep-sea); color: var(--paper); }

.header-strip {
  background: linear-gradient(90deg, var(--night-navy), var(--deep-sea) 58%, var(--night-navy));
  border-bottom: 1px solid rgba(242, 245, 248, .08);
}
.header-strip__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 40px;
  flex-wrap: wrap;
}
.header-strip__mark {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-size: .78rem;
  letter-spacing: .08em;
  color: rgba(242, 245, 248, .62);
}
.header-strip__mark::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--electric-cyan);
  box-shadow: 0 0 0 3px rgba(43, 227, 218, .18);
}
.utility-nav__list { display: flex; flex-wrap: wrap; align-items: center; gap: clamp(.9rem, 2.4vw, 2rem); }
.utility-nav__link {
  display: inline-block;
  padding: .5rem 0;
  font-size: .8rem;
  letter-spacing: .08em;
  color: rgba(242, 245, 248, .72);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.utility-nav__link:hover, .utility-nav__link:focus-visible {
  color: var(--electric-cyan);
  border-color: var(--electric-cyan);
}

.masthead {
  position: relative;
  padding: clamp(16px, 2.6vw, 28px) 0 clamp(12px, 1.8vw, 18px);
  background: radial-gradient(120% 190% at 50% -50%, rgba(43, 227, 218, .16), transparent 62%);
}
.masthead__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
}
.masthead__edition {
  grid-column: 1;
  justify-self: start;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--amber-gold);
  white-space: nowrap;
}
.masthead__brand { grid-column: 2; position: relative; display: block; padding: .35rem .6rem; text-align: center; }
.masthead__brand::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -2px;
  transform: translateX(-50%);
  width: min(360px, 80%);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(43, 227, 218, .85), transparent);
}
.masthead__title {
  display: block;
  font-family: var(--font-editorial);
  font-weight: 700;
  font-size: clamp(1.55rem, 4.6vw, 2.6rem);
  letter-spacing: .14em;
  line-height: 1.15;
  color: var(--paper);
  transition: color .2s var(--ease);
}
.masthead__brand:hover .masthead__title, .masthead__brand:focus-visible .masthead__title { color: var(--electric-cyan); }
.masthead__sub {
  display: block;
  margin-top: .42rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .2em;
  color: rgba(43, 227, 218, .9);
}
.masthead__actions { grid-column: 3; justify-self: end; display: flex; align-items: center; gap: .6rem; }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 40px;
  border: 1px solid rgba(43, 227, 218, .45);
  border-radius: var(--radius-sm);
  color: var(--electric-cyan);
  cursor: pointer;
  transition: border-color .18s var(--ease), background-color .18s var(--ease);
}
.nav-toggle:hover { background: rgba(43, 227, 218, .1); }
.nav-toggle__bars { position: relative; display: block; width: 18px; height: 2px; background: currentColor; transition: background-color .2s var(--ease); }
.nav-toggle__bars::before, .nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform .22s var(--ease);
}
.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }
[data-nav-toggle][aria-expanded="true"] .nav-toggle__bars { background: transparent; }
[data-nav-toggle][aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
[data-nav-toggle][aria-expanded="true"] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

.primary-nav {
  background: linear-gradient(180deg, rgba(15, 51, 80, .95), rgba(7, 28, 46, .95));
  border-top: 1px solid rgba(242, 245, 248, .12);
  border-bottom: 1px solid rgba(43, 227, 218, .24);
}
.primary-nav__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 3vw, 2.5rem);
  flex-wrap: wrap;
  padding: .5rem 0;
}
.primary-nav__list { display: flex; align-items: center; gap: clamp(.7rem, 2.2vw, 2rem); }
.primary-nav__link {
  position: relative;
  display: block;
  padding: .72rem .2rem;
  font-size: .98rem;
  letter-spacing: .05em;
  color: rgba(242, 245, 248, .82);
  transition: color .18s var(--ease);
}
.primary-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: .3rem;
  height: 2px;
  background: var(--electric-cyan);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .22s var(--ease);
}
.primary-nav__link:hover, .primary-nav__link:focus-visible { color: var(--electric-cyan); }
.primary-nav__link:hover::after, .primary-nav__link:focus-visible::after { transform: scaleX(1); }
.primary-nav__link[aria-current="page"] { color: var(--electric-cyan); }
.primary-nav__link[aria-current="page"]::after { transform: scaleX(1); background: var(--amber-gold); }
.primary-nav__cta { display: none; }

/* ---------- 11. Footer ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(36px, 6vw, 72px);
  background: var(--deep-sea);
  color: var(--paper);
  border-top: 1px solid rgba(43, 227, 218, .22);
}
.skyline {
  position: relative;
  height: clamp(96px, 15vw, 168px);
  overflow: hidden;
  background:
    radial-gradient(130% 160% at 50% 132%, rgba(43, 227, 218, .2), transparent 62%),
    linear-gradient(180deg, rgba(15, 51, 80, 0), rgba(15, 51, 80, .55));
}
.skyline::before {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 100%;
  background-image:
    repeating-linear-gradient(90deg, rgba(6, 22, 36, .94) 0 4%, transparent 4% 9%),
    repeating-linear-gradient(90deg, rgba(15, 51, 80, .85) 0 6%, transparent 6% 13%),
    repeating-linear-gradient(90deg, rgba(28, 74, 110, .72) 0 3%, transparent 3% 8%);
  background-size: 100% 82%, 100% 58%, 100% 36%;
  background-position: 0 100%, 3% 100%, -2% 100%;
  background-repeat: no-repeat;
}
.skyline::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(43, 227, 218, .7), transparent);
}
.site-footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  padding: clamp(28px, 4vw, 56px) 0 clamp(22px, 3vw, 38px);
}
@media (min-width: 860px) {
  .site-footer__inner { grid-template-columns: minmax(240px, 1.05fr) minmax(0, 2fr); }
}
.footer-brand__link {
  display: inline-block;
  font-family: var(--font-editorial);
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--paper);
  transition: color .18s var(--ease);
}
.footer-brand__link:hover, .footer-brand__link:focus-visible { color: var(--electric-cyan); }
.footer-brand__line {
  margin-top: .5rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  color: rgba(43, 227, 218, .85);
}
.footer-brand__meta { margin-top: .9rem; font-size: .88rem; line-height: 1.7; color: rgba(242, 245, 248, .6); }
.footer-contact {
  margin-top: var(--space-2);
  padding-top: var(--space-2);
  border-top: 1px dashed rgba(242, 245, 248, .18);
  font-size: .88rem;
  line-height: 1.7;
  color: rgba(242, 245, 248, .82);
}
.footer-contact .numeric { color: var(--amber-gold); }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: clamp(18px, 2.6vw, 34px); }
.footer-col__title {
  font-family: var(--font-display);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--amber-gold);
  margin-bottom: .9rem;
}
.footer-col__list { display: grid; gap: .55rem; }
.footer-col__link {
  display: inline-block;
  font-size: .95rem;
  color: rgba(242, 245, 248, .78);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.footer-col__link:hover, .footer-col__link:focus-visible {
  color: var(--electric-cyan);
  border-color: rgba(43, 227, 218, .6);
}
.footer-legal { background: rgba(11, 17, 22, .55); border-top: 1px solid rgba(242, 245, 248, .1); }
.footer-legal__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem 1.8rem;
  padding: 1rem 0;
  font-size: .82rem;
  line-height: 1.7;
  color: rgba(242, 245, 248, .66);
}
.footer-legal__item { display: inline-flex; align-items: center; gap: .4rem; }
.footer-legal__brand { color: rgba(242, 245, 248, .5); }
.footer-legal .numeric { color: var(--electric-cyan); }

/* ---------- 12. Reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .55s var(--ease), transform .55s var(--ease);
}
[data-reveal="in"] { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: 70ms; }
[data-reveal-delay="2"] { transition-delay: 140ms; }
[data-reveal-delay="3"] { transition-delay: 210ms; }
[data-reveal-delay="4"] { transition-delay: 280ms; }

/* ---------- 13. Responsive ---------- */
@media (max-width: 1080px) {
  .masthead__edition { font-size: .72rem; letter-spacing: .08em; }
}
@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .masthead__cta { display: none; }
  .primary-nav__inner {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    max-height: 0;
    padding: 0;
    overflow: hidden;
    visibility: hidden;
    transition: max-height .26s var(--ease), padding .26s var(--ease);
  }
  [data-nav][data-open] .primary-nav__inner {
    max-height: min(72vh, 560px);
    padding: .4rem 0 1.3rem;
    overflow-y: auto;
    visibility: visible;
  }
  .primary-nav__list { flex-direction: column; align-items: stretch; gap: 0; width: 100%; }
  .primary-nav__link {
    padding: .9rem .3rem;
    font-size: 1rem;
    border-bottom: 1px solid rgba(242, 245, 248, .1);
  }
  .primary-nav__link::after { display: none; }
  .primary-nav__link[aria-current="page"] {
    background: linear-gradient(90deg, rgba(43, 227, 218, .14), transparent);
    border-bottom-color: rgba(43, 227, 218, .4);
  }
  .primary-nav__cta { display: inline-flex; margin-top: 1.1rem; width: 100%; }
}
@media (max-width: 720px) {
  .header-strip__mark { display: none; }
  .header-strip__inner { justify-content: center; }
  .masthead__inner { gap: .5rem; }
  .masthead__title { letter-spacing: .1em; }
  .site-footer__inner { padding-top: clamp(22px, 6vw, 34px); }
  .footer-legal__inner { justify-content: flex-start; }
}
@media (max-width: 460px) {
  .masthead__edition { display: none; }
  .masthead__inner { grid-template-columns: auto 1fr auto; }
  .masthead__brand { grid-column: 2; }
  .utility-nav__list { gap: .9rem; }
  .utility-nav__link { font-size: .74rem; }
}

/* ---------- 14. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
  .btn:hover { transform: none; }
  .scroll-progress__bar { transition: none; }
}