/* ==========================================================================
   PG会馆 · /assets/site.css
   共享外壳：头部框架、页脚层次、排版基线、通用组件
   ========================================================================== */

:root {
  /* 色彩体系 */
  --ink: #0B1B2B;
  --ink-soft: #12324A;
  --paper: #F4EFE6;
  --paper-2: #E7DECD;
  --card: #FFFDF9;
  --cyan: #12B7BE;
  --cyan-soft: #9FE3E5;
  --amber: #EFA43A;
  --orange: #CC4A26;
  --mist: #6C7E8B;

  --line-dark: rgba(11, 27, 43, 0.16);
  --line-dark-strong: rgba(11, 27, 43, 0.32);
  --line-light: rgba(244, 239, 230, 0.2);
  --line-cyan: rgba(159, 227, 229, 0.34);

  /* 形状 */
  --radius: 14px;
  --radius-sm: 10px;
  --radius-pill: 999px;

  /* 排版 */
  --font-display: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", SimSun, Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  /* 尺寸 */
  --wrap: 1200px;
  --gutter: clamp(18px, 4vw, 40px);
  --header-pad: 14px;
  --ease: cubic-bezier(.2, .7, .3, 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, dl, dd, figure, blockquote {
  margin: 0;
}

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

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

table {
  border-collapse: collapse;
  width: 100%;
}

/* ---------- 基础排版 ---------- */
body {
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.85;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.16;
  text-wrap: balance;
}

h1 { font-size: clamp(34px, 5.4vw, 60px); }
h2 { font-size: clamp(24px, 3vw, 36px); }
h3 { font-size: clamp(18px, 2vw, 24px); }
h4 { font-size: 17px; }

p { text-wrap: pretty; }

strong { font-weight: 700; }

code, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.94em;
}

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

.site-header :focus-visible,
.site-footer :focus-visible,
.panel--ink :focus-visible {
  outline-color: var(--amber);
}

/* ---------- 布局容器 ---------- */
.container {
  width: min(100% - var(--gutter) * 2, var(--wrap));
  margin-inline: auto;
}

.section {
  padding-block: clamp(38px, 5.6vw, 84px);
}

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 24px;
  padding-bottom: 14px;
  margin-bottom: clamp(18px, 2.6vw, 32px);
  border-bottom: 1px solid var(--line-dark);
}

.section__title {
  font-size: clamp(22px, 2.8vw, 32px);
}

.section__note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}

.grid--halves,
.grid--thirds,
.grid--aside {
  grid-template-columns: minmax(0, 1fr);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--stack-gap, 16px);
}

.rule {
  height: 1px;
  border: 0;
  background: var(--line-dark);
  margin-block: clamp(20px, 3vw, 34px);
}

/* ---------- 头部骨架 ---------- */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 300;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--amber);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  transform: translateY(-160%);
  transition: transform 180ms var(--ease);
}

.skip-link:focus-visible {
  transform: translateY(0);
  outline-color: var(--paper);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: var(--ink);
  color: var(--paper);
  border-bottom: 1px solid var(--line-cyan);
}

.scroll-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  z-index: 3;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan-soft) 55%, var(--amber) 100%);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 120ms linear;
}

.site-header__frame {
  position: relative;
  padding-left: 3px;
}

.site-header__frame::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--amber));
}

.site-header__frame::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  opacity: 0.5;
  pointer-events: none;
  background-image: repeating-linear-gradient(90deg, var(--line-cyan) 0 1px, transparent 1px 16px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-block: var(--header-pad);
  transition: padding-block 200ms var(--ease);
}

.site-header[data-scrolled] {
  --header-pad: 8px;
}

/* 品牌字标 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  min-height: 44px;
}

.brand__mark {
  position: relative;
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  border: 1px solid var(--cyan);
  border-radius: 6px;
  background: linear-gradient(150deg, rgba(18, 183, 190, 0.24), rgba(18, 50, 74, 0.1));
}

.brand__mark::before,
.brand__mark::after {
  content: "";
  position: absolute;
  background: var(--amber);
}

.brand__mark::before {
  left: 50%;
  top: 5px;
  bottom: 5px;
  width: 1px;
  transform: translateX(-0.5px);
}

.brand__mark::after {
  top: 50%;
  left: 5px;
  right: 5px;
  height: 1px;
  transform: translateY(-0.5px);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand__name {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand__domain {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--cyan-soft);
  text-transform: lowercase;
  transition: opacity 200ms var(--ease);
}

.site-header[data-scrolled] .brand__domain {
  opacity: 0;
}

/* 移动导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  min-width: 44px;
  padding: 0 14px 0 12px;
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--paper);
  background: rgba(18, 50, 74, 0.6);
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

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

.nav-toggle__bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
  width: 16px;
  height: 12px;
}

.nav-toggle__bars span {
  display: block;
  height: 1.5px;
  width: 100%;
  background: currentColor;
  border-radius: 1px;
  transition: transform 200ms var(--ease), opacity 160ms var(--ease);
}

.site-header[data-open] .nav-toggle__bars span:nth-child(1) { transform: translateY(5.25px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.site-header[data-open] .nav-toggle__bars span:nth-child(3) { transform: translateY(-5.25px) rotate(-45deg); }

/* 一级导航 */
.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 30px);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.primary-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 24px);
  flex-wrap: wrap;
}

.primary-nav__item {
  display: flex;
}

.primary-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 2px;
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: rgba(244, 239, 230, 0.76);
  transition: color 160ms var(--ease);
}

.primary-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 6px;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 180ms var(--ease);
}

.primary-nav__link:hover {
  color: var(--paper);
}

.primary-nav__link:hover::after {
  transform: scaleX(1);
}

.primary-nav__link[aria-current="page"] {
  color: var(--paper);
}

.primary-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--amber);
}

.primary-nav__cta {
  flex: 0 0 auto;
}

/* 移动端底部索引带 */
.mobile-index {
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 130;
  background: var(--ink);
  border-top: 1px solid var(--line-cyan);
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.mobile-index__list {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  width: min(100% - 24px, var(--wrap));
  margin-inline: auto;
}

.mobile-index__item {
  flex: 1 1 0;
  display: flex;
}

.mobile-index__link {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: rgba(244, 239, 230, 0.7);
  border-top: 2px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.mobile-index__link[aria-current="page"] {
  color: var(--cyan-soft);
  border-top-color: var(--amber);
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--ink-soft);
  color: var(--paper);
  border-top: 1px solid var(--line-cyan);
  padding-block: clamp(34px, 5vw, 64px) 20px;
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 6px;
  opacity: 0.45;
  background-image: repeating-linear-gradient(90deg, var(--line-cyan) 0 1px, transparent 1px 16px);
}

.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 1fr)) minmax(0, 1.3fr);
  gap: clamp(22px, 3.4vw, 44px);
  padding-top: 10px;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}

.footer__wordmark {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.footer__tagline {
  font-family: var(--font-serif);
  font-size: 15.5px;
  font-weight: 600;
  color: var(--cyan-soft);
  letter-spacing: 0.02em;
}

.footer__memo {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(244, 239, 230, 0.66);
  max-width: 30ch;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__heading {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer__item {
  display: flex;
}

.footer__link {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  font-size: 14px;
  color: rgba(244, 239, 230, 0.82);
  border-bottom: 1px solid transparent;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

.footer__link:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan);
}

.footer__brand-link {
  font-size: 13px;
  color: var(--amber);
  border-bottom-color: rgba(239, 164, 58, 0.4);
}

.footer__brand-link:hover {
  color: var(--paper);
  border-bottom-color: var(--amber);
}

.footer__contact {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer__line {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
  color: rgba(244, 239, 230, 0.86);
}

.footer__assist {
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(244, 239, 230, 0.58);
  margin-top: 6px;
  max-width: 34ch;
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 22px;
  margin-top: clamp(26px, 4vw, 46px);
  padding-top: 16px;
  border-top: 1px solid var(--line-light);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: rgba(244, 239, 230, 0.55);
  font-variant-numeric: tabular-nums;
}

.footer__copy,
.footer__icp,
.footer__issue {
  margin: 0;
}

.footer__issue {
  color: rgba(159, 227, 229, 0.7);
}

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-align: center;
  transition: background-color 160ms var(--ease), color 160ms var(--ease), border-color 160ms var(--ease), transform 160ms var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

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

.btn--amber:hover {
  background: #f3b45f;
  border-color: #f3b45f;
}

.btn--cyan {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #04222a;
}

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

.btn--ghost {
  background: transparent;
  border-color: var(--line-dark-strong);
  color: var(--ink);
}

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

.panel--ink .btn--ghost,
.site-footer .btn--ghost {
  border-color: var(--line-light);
  color: var(--paper);
}

.panel--ink .btn--ghost:hover,
.site-footer .btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan-soft);
}

/* ---------- 面板 ---------- */
.panel {
  background: var(--card);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
}

.panel--tint {
  background: var(--paper-2);
}

.panel--ink {
  background: var(--ink);
  color: var(--paper);
  border-color: rgba(159, 227, 229, 0.24);
}

.panel--slant {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 32px), 0 100%);
  padding-bottom: 32px;
}

.panel__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 18px;
  padding: clamp(14px, 2vw, 20px) clamp(16px, 2.4vw, 26px);
  border-bottom: 1px solid var(--line-dark);
}

.panel--ink .panel__head {
  border-bottom-color: rgba(159, 227, 229, 0.24);
}

.panel__title {
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 700;
  letter-spacing: -0.005em;
}

.panel__body {
  padding: clamp(16px, 2.4vw, 26px);
}

/* ---------- 文本层级 ---------- */
.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.eyebrow--cyan { color: var(--cyan); }
.eyebrow--amber { color: var(--amber); }

.lede {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(16px, 1.7vw, 18.5px);
  line-height: 1.9;
  color: var(--ink-soft);
  max-width: 62ch;
}

.panel--ink .lede {
  color: rgba(244, 239, 230, 0.82);
}

.text-link {
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line-dark-strong);
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

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

/* ---------- 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
  padding: 2px 11px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line-dark);
  background: var(--card);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
  color: var(--ink-soft);
  transition: border-color 160ms var(--ease), color 160ms var(--ease), background-color 160ms var(--ease);
}

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

.tag--cyan {
  background: rgba(18, 183, 190, 0.12);
  border-color: rgba(18, 183, 190, 0.5);
  color: #0a5b60;
}

.tag--amber {
  background: rgba(239, 164, 58, 0.16);
  border-color: rgba(239, 164, 58, 0.55);
  color: #8a5a11;
}

.tag--outline {
  background: transparent;
  border-style: dashed;
  color: var(--mist);
}

/* ---------- 卡片 ---------- */
.card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 18px;
  background: var(--card);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-sm);
  transition: border-color 160ms var(--ease), background-color 160ms var(--ease);
}

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

.card__meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}

/* ---------- 面包屑 ---------- */
.crumbs {
  padding-block: 14px;
}

.crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.crumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.crumbs__item + .crumbs__item::before {
  content: "/";
  color: var(--line-dark-strong);
}

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

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

/* ---------- 分段切换 ---------- */
.tabs {
  display: block;
}

.tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-bottom: 4px;
}

.tabs__tab {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-pill);
  background: var(--card);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  transition: background-color 160ms var(--ease), color 160ms var(--ease), border-color 160ms var(--ease);
}

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

.tabs__tab[aria-selected="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.tabs__panel {
  padding-top: clamp(16px, 2.4vw, 26px);
}

.tabs__panel[hidden] {
  display: none;
}

/* ---------- 图片容器基础规则 ---------- */
.media {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(11, 27, 43, 0.14);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 90% at 18% 0%, rgba(18, 183, 190, 0.26), transparent 62%),
    linear-gradient(158deg, var(--ink-soft) 0%, var(--ink) 72%);
}

.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 4 / 5; }

.media__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.55) contrast(1.06) brightness(0.94);
}

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(198deg, rgba(239, 164, 58, 0.18) 0%, transparent 46%),
    linear-gradient(0deg, rgba(11, 27, 43, 0.44) 0%, transparent 58%);
}

.media__caption {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 入场上浮 ---------- */
html.has-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 240ms var(--ease), transform 240ms var(--ease);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .grid--halves { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--thirds { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 960px) {
  .grid--aside { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
}

@media (max-width: 1080px) {
  .primary-nav { gap: 12px; }
  .primary-nav__link { font-size: 13px; letter-spacing: 0.03em; }
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 880px) {
  body { padding-bottom: 64px; }

  .site-header__inner {
    flex-wrap: wrap;
    row-gap: 12px;
  }

  .nav-toggle { display: inline-flex; }

  .primary-nav {
    display: none;
    order: 3;
    flex: 1 0 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 10px 0 18px;
    border-top: 1px solid var(--line-cyan);
    margin-top: 4px;
  }

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

  .primary-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .primary-nav__link {
    width: 100%;
    min-height: 48px;
    font-size: 15px;
    letter-spacing: 0.04em;
    border-bottom: 1px solid rgba(159, 227, 229, 0.14);
  }

  .primary-nav__link::after { display: none; }

  .primary-nav__link[aria-current="page"] {
    color: var(--cyan-soft);
    padding-left: 10px;
    box-shadow: inset 3px 0 0 var(--amber);
  }

  .primary-nav__cta {
    margin-top: 14px;
    width: 100%;
    min-height: 48px;
    font-size: 14px;
  }

  .mobile-index { display: block; }

  .brand__domain { font-size: 10px; }
}

@media (max-width: 560px) {
  body { font-size: 15px; line-height: 1.8; }

  .footer__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 26px;
  }

  .footer__legal {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .section__head { align-items: flex-start; }
}

@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;
  }

  .btn:hover { transform: none; }

  html.has-reveal [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .scroll-progress { transition: none; }
}