/* ============================================================
   乐鱼赛事站 · 共享站点套件 /assets/site.css
   深潜观赛舱：深渊墨蓝 / 电光青 / 珊瑚橙
   ============================================================ */

/* ---------- 01 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, ul, ol, li, figure, blockquote, dl, dd {
  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%; }
hr { border: 0; }

/* ---------- 02 Tokens ---------- */
:root {
  --ink: #061A26;
  --ink-soft: #0A2434;
  --deep: #0B3C5D;
  --cyan: #1FC8DB;
  --cyan-soft: #7FE3EC;
  --coral: #FF6B4A;
  --coral-soft: #FFD9CF;
  --paper: #F4F7F8;
  --card: #FFFFFF;
  --text: #2A3B45;
  --text-soft: #4A5C66;
  --muted: #8FA6B2;
  --amber: #C4472C;
  --line: rgba(11, 60, 93, 0.14);
  --line-strong: rgba(11, 60, 93, 0.28);
  --shell: 1240px;
  --pad: clamp(18px, 4vw, 40px);
  --r-sm: 12px;
  --r: 20px;
  --r-lg: 32px;
  --sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 03 Base type ---------- */
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.02em;
  color: var(--text);
  background-color: var(--paper);
  background-image:
    radial-gradient(120% 70% at 100% 0%, rgba(31, 200, 219, 0.07), transparent 58%),
    radial-gradient(90% 60% at 0% 100%, rgba(11, 60, 93, 0.05), transparent 60%);
  background-repeat: no-repeat;
}

h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; color: var(--ink); }

#main-content { display: block; }
#main-content:focus { outline: none; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 6px;
}

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

/* ---------- 04 Utilities ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

.skip-link {
  position: absolute;
  top: -140%;
  left: 16px;
  z-index: 200;
  display: inline-block;
  padding: 12px 20px;
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  background: var(--cyan);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  transition: top 0.18s var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible { top: 0; }

/* ---------- 05 Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: transform 0.18s var(--ease), background-color 0.18s var(--ease),
    border-color 0.18s var(--ease), color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.btn:hover { transform: translateY(-2px); }

.btn__arrow {
  font-family: var(--mono);
  font-size: 14px;
  transition: transform 0.18s var(--ease);
}

.btn:hover .btn__arrow { transform: translateX(3px); }

.btn--primary {
  background: var(--coral);
  color: #2A1006;
  box-shadow: 0 10px 24px -18px rgba(255, 107, 74, 0.95);
}

.btn--primary:hover { background: #ff7f63; }

.btn--ghost {
  background: transparent;
  color: var(--cyan-soft);
  border-color: rgba(127, 227, 236, 0.55);
}

.btn--ghost:hover {
  background: rgba(31, 200, 219, 0.14);
  border-color: var(--cyan);
  color: #ffffff;
}

.btn--line {
  background: #ffffff;
  color: var(--deep);
  border-color: var(--line-strong);
}

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

/* ---------- 06 Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  isolation: isolate;
}

/* 上层：品牌带 */
.header-brandbar {
  position: relative;
  overflow: hidden;
  max-height: 160px;
  color: #EAF4F7;
  background-image:
    radial-gradient(80% 150% at 88% -30%, rgba(31, 200, 219, 0.30), transparent 62%),
    radial-gradient(70% 130% at 0% 130%, rgba(255, 107, 74, 0.16), transparent 60%),
    linear-gradient(100deg, #061A26 0%, #08283C 52%, #0B3C5D 100%);
  transition: max-height 0.24s var(--ease), opacity 0.18s var(--ease);
}

.header-brandbar::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    115deg,
    rgba(127, 227, 236, 0.10) 0 1px,
    transparent 1px 15px
  );
}

.header-brandbar__inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 40px);
  min-height: 78px;
  padding-block: 12px;
}

.site-header[data-condensed] .header-brandbar {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
}

/* 品牌标记：纯 CSS 鱼鳍 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  color: #ffffff;
}

.brand__mark {
  position: relative;
  display: block;
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  border-radius: 13px;
  border: 1px solid rgba(127, 227, 236, 0.55);
  background:
    radial-gradient(circle at 32% 24%, rgba(31, 200, 219, 0.95) 0%, rgba(31, 200, 219, 0.12) 52%, rgba(31, 200, 219, 0) 74%),
    var(--deep);
  overflow: hidden;
}

.brand__fin {
  position: absolute;
  display: block;
  border-radius: 50%;
}

.brand__fin--a {
  width: 28px;
  height: 28px;
  left: -8px;
  bottom: -10px;
  border: 2px solid var(--cyan-soft);
  opacity: 0.9;
}

.brand__fin--b {
  width: 15px;
  height: 15px;
  right: -3px;
  top: 5px;
  border: 2px solid var(--coral);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__name {
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.brand__meta {
  margin-top: 3px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan-soft);
}

.brandbar__note {
  position: relative;
  flex: 1 1 auto;
  padding-left: 18px;
  font-size: 14px;
  letter-spacing: 0.05em;
  color: rgba(234, 244, 247, 0.74);
  border-left: 1px solid rgba(127, 227, 236, 0.32);
}

.brandbar__note::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-left: -3.5px;
  border-radius: 50%;
  background: var(--cyan);
  transform: translateY(-50%);
}

/* 下层：栏目条 */
.header-navbar {
  position: relative;
  background: rgba(244, 247, 248, 0.95);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.header-navbar__inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 24px);
  min-height: 58px;
  padding-block: 6px;
}

.site-header[data-condensed] .header-navbar {
  box-shadow: 0 16px 30px -28px rgba(6, 26, 38, 0.95);
}

/* 移动菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 8px 14px 8px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: #ffffff;
  color: var(--deep);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.05em;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

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

.nav-toggle__glyph {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  width: 18px;
  height: 14px;
}

.nav-toggle__glyph span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: var(--deep);
  transition: background-color 0.18s var(--ease);
}

.nav-toggle__glyph span:nth-child(2) { width: 70%; }

.nav-toggle[aria-expanded="true"] { color: var(--ink); border-color: var(--cyan); }
.nav-toggle[aria-expanded="true"] .nav-toggle__glyph span { background: var(--cyan); }
.nav-toggle[aria-expanded="true"] .nav-toggle__glyph span:nth-child(2) { width: 100%; }

/* 主导航 */
.primary-nav {
  flex: 1 1 auto;
  min-width: 0;
}

.primary-nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px;
}

.primary-nav__item { display: block; }

.primary-nav__link {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.primary-nav__link::before {
  content: attr(data-index);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
  transition: color 0.18s var(--ease);
}

.primary-nav__link:hover {
  background: #ffffff;
  color: var(--deep);
  box-shadow: inset 0 0 0 1px var(--line-strong);
}

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

.primary-nav__link[aria-current="page"] {
  background: #ffffff;
  color: var(--deep);
  font-weight: 700;
  box-shadow: inset 0 0 0 1px rgba(31, 200, 219, 0.5);
}

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

.primary-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan);
}

/* 阅读进度线 */
.scroll-line {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  pointer-events: none;
}

.scroll-line__bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--cyan) 0%, #35d3c0 55%, var(--coral) 100%);
  transition: width 0.12s linear;
}

/* 移动端底部快捷坞 */
.dock { display: none; }

/* ---------- 07 Footer ---------- */
.site-footer {
  position: relative;
  overflow: hidden;
  margin-top: clamp(48px, 8vw, 96px);
  color: #D9E8ED;
  background-color: var(--ink);
  background-image:
    radial-gradient(85% 60% at 84% -12%, rgba(31, 200, 219, 0.20), transparent 62%),
    radial-gradient(70% 50% at 0% 110%, rgba(11, 60, 93, 0.85), transparent 65%);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    115deg,
    rgba(127, 227, 236, 0.07) 0 1px,
    transparent 1px 17px
  );
}

.footer-rule {
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(31, 200, 219, 0) 42%, rgba(255, 107, 74, 0.9) 100%);
}

.footer-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.25fr 1.5fr 1.35fr;
  gap: clamp(28px, 4vw, 60px);
  padding-block: clamp(40px, 6vw, 78px);
}

.footer-brand__title {
  font-size: clamp(24px, 2.6vw, 30px);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: #ffffff;
}

.footer-brand__line {
  margin-top: 12px;
  max-width: 30ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(217, 232, 237, 0.76);
}

.footer-brand__tag {
  margin-top: 18px;
  padding-top: 14px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(217, 232, 237, 0.55);
  border-top: 1px solid rgba(127, 227, 236, 0.22);
}

.footer-brand__tag .mono { color: var(--cyan-soft); }

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 40px);
}

.footer-col__title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: #ffffff;
}

.footer-col__title .mono {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.footer-col__list { margin-top: 16px; }

.footer-col__list li + li { margin-top: 2px; }

.footer-col__list a {
  display: inline-block;
  padding: 5px 0;
  font-size: 15px;
  color: rgba(217, 232, 237, 0.78);
  transition: color 0.18s var(--ease), transform 0.18s var(--ease);
}

.footer-col__list a:hover {
  color: var(--cyan-soft);
  transform: translateX(4px);
}

.footer-contact__list { margin-top: 16px; display: grid; gap: 12px; }

.footer-contact__list li {
  display: grid;
  gap: 2px;
}

.footer-contact__key {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.footer-contact__val {
  font-size: 15px;
  line-height: 1.6;
  color: rgba(233, 245, 248, 0.94);
  overflow-wrap: anywhere;
}

.footer-contact__note {
  margin-top: 16px;
  padding-left: 12px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(217, 232, 237, 0.6);
  border-left: 2px solid rgba(255, 107, 74, 0.7);
}

.footer-contact .btn { margin-top: 18px; }

.footer-base {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-block: 20px 26px;
  border-top: 1px solid rgba(127, 227, 236, 0.2);
}

.footer-base__legal {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(217, 232, 237, 0.62);
}

.footer-base__legal .mono { color: var(--cyan-soft); }

.footer-base__links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  font-size: 13px;
}

.footer-base__links a {
  color: rgba(217, 232, 237, 0.7);
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.footer-base__links a:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan);
}

/* ---------- 08 Page primitives ---------- */
.page-head {
  padding-block: clamp(32px, 5vw, 68px) clamp(6px, 2vw, 14px);
}

.page-head__eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-head__title {
  margin-top: 12px;
  font-size: clamp(34px, 6vw, 64px);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-head__lead {
  max-width: 58ch;
  margin-top: 18px;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--text-soft);
}

.breadcrumbs {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.breadcrumbs li + li::before {
  content: "/";
  font-family: var(--mono);
  color: rgba(11, 60, 93, 0.32);
}

.breadcrumbs a { color: var(--deep); }
.breadcrumbs a:hover { color: var(--amber); }
.breadcrumbs [aria-current="page"] { color: var(--text); font-weight: 600; }

.section { padding-block: clamp(44px, 6vw, 88px); }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 14px clamp(16px, 3vw, 32px);
  margin-bottom: clamp(22px, 3vw, 40px);
  padding-top: 18px;
  border-top: 1px solid var(--line-strong);
}

.section__index {
  font-family: var(--mono);
  font-size: clamp(32px, 5vw, 54px);
  font-weight: 700;
  line-height: 0.86;
  letter-spacing: -0.02em;
  color: rgba(11, 60, 93, 0.18);
}

.section__title {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 900;
  line-height: 1.2;
  color: var(--ink);
}

.section__note {
  margin-left: auto;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.prose {
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--text);
}

.prose > * + * { margin-top: 1.1em; }

.prose h2 {
  margin-top: 2em;
  font-size: clamp(22px, 2.6vw, 28px);
  line-height: 1.3;
  color: var(--ink);
}

.prose h3 {
  margin-top: 1.6em;
  font-size: 19px;
  color: var(--deep);
}

.prose ul { padding-left: 0; }

.prose li {
  position: relative;
  padding-left: 20px;
}

.prose li + li { margin-top: 0.5em; }

.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.74em;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.prose a {
  color: var(--amber);
  border-bottom: 1px solid rgba(196, 71, 44, 0.45);
}

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

.prose strong { color: var(--ink); }

.grid {
  display: grid;
  gap: clamp(16px, 2.2vw, 26px);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--asym { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(20px, 2.4vw, 30px);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r);
  transition: transform 0.18s var(--ease), border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.card:hover {
  transform: translateY(-2px);
  border-color: rgba(31, 200, 219, 0.75);
  box-shadow: 0 20px 42px -34px rgba(6, 26, 38, 0.85);
}

.card--cut { border-radius: var(--r-lg) 10px var(--r-lg) var(--r-lg); }

.card__index {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--muted);
  transition: color 0.18s var(--ease);
}

.card:hover .card__index { color: var(--coral); }

.card__title {
  margin-top: 8px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
}

.card__text {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-soft);
}

.card__link {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding-bottom: 2px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--deep);
  border-bottom: 1px solid rgba(31, 200, 219, 0.6);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.card__link:hover { color: var(--amber); border-bottom-color: var(--coral); }

.media {
  position: relative;
  display: block;
  overflow: hidden;
  isolation: isolate;
  aspect-ratio: 16 / 10;
  border-radius: var(--r);
  background-color: var(--deep);
  background-image:
    radial-gradient(120% 120% at 18% 8%, rgba(31, 200, 219, 0.5), transparent 56%),
    radial-gradient(90% 90% at 100% 100%, rgba(255, 107, 74, 0.28), transparent 60%),
    linear-gradient(160deg, #0B3C5D 0%, #061A26 72%);
}

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    115deg,
    rgba(127, 227, 236, 0.12) 0 1px,
    transparent 1px 18px
  );
  mix-blend-mode: screen;
}

.media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.96) contrast(1.04);
}

.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 4 / 5; }
.media--square { aspect-ratio: 1 / 1; }

.media__caption {
  position: absolute;
  left: 16px;
  bottom: 14px;
  z-index: 1;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(244, 247, 248, 0.86);
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: #ffffff;
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--deep);
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease), color 0.18s var(--ease);
}

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

.chip[aria-pressed="true"] {
  background: var(--coral);
  border-color: var(--coral);
  color: #2A1006;
  font-weight: 700;
}

/* ---------- 09 Responsive ---------- */
@media (max-width: 1080px) {
  .brandbar__note { display: none; }
  .footer-grid { grid-template-columns: 1fr 1.3fr; }
  .footer-contact { grid-column: 1 / -1; padding-top: 24px; border-top: 1px solid rgba(127, 227, 236, 0.18); }
  .footer-contact__list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .grid--2,
  .grid--3,
  .grid--asym { grid-template-columns: minmax(0, 1fr); }
  .primary-nav__link { padding: 9px 11px; font-size: 14px; }
  .primary-nav__link::before { display: none; }
  .primary-nav__link[aria-current="page"]::after { left: 11px; right: 11px; }
}

@media (max-width: 767px) {
  body { padding-bottom: calc(64px + env(safe-area-inset-bottom)); }

  .header-brandbar__inner { min-height: 58px; gap: 12px; padding-block: 9px; }
  .brand__mark { width: 34px; height: 34px; border-radius: 11px; }
  .brand__name { font-size: 17px; }
  .brand__meta { font-size: 10px; letter-spacing: 0.12em; }

  .header-navbar__inner { min-height: 54px; gap: 10px; }
  .nav-toggle { display: inline-flex; }

  .btn { padding: 11px 16px; font-size: 13px; gap: 7px; }
  .btn__arrow { font-size: 12px; }

  .primary-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 95;
    padding: 8px var(--pad) 18px;
    background: #ffffff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 28px 44px -34px rgba(6, 26, 38, 0.9);
  }

  .primary-nav[data-open] {
    display: block;
    animation: nav-in 0.18s ease-out both;
  }

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

  .primary-nav__link {
    display: flex;
    width: 100%;
    padding: 13px 8px;
    border-radius: 10px;
    font-size: 16px;
    border-bottom: 1px dashed rgba(11, 60, 93, 0.12);
  }

  .primary-nav__link::before { display: inline; }
  .primary-nav__link[aria-current="page"] { box-shadow: none; background: rgba(31, 200, 219, 0.1); }
  .primary-nav__link[aria-current="page"]::after { left: 8px; right: auto; width: 22px; bottom: 6px; }

  .dock {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 96;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding-bottom: env(safe-area-inset-bottom);
    background: rgba(6, 26, 38, 0.97);
    border-top: 1px solid rgba(31, 200, 219, 0.5);
  }

  .dock__link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 10px 6px;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.04em;
    color: rgba(220, 235, 239, 0.86);
    transition: background-color 0.18s var(--ease), color 0.18s var(--ease);
  }

  .dock__link:hover,
  .dock__link:active { background: rgba(31, 200, 219, 0.14); color: #ffffff; }

  .dock__link[aria-current="page"] { color: #ffffff; background: rgba(31, 200, 219, 0.18); }

  .dock__key {
    font-size: 10px;
    letter-spacing: 0.12em;
    color: var(--cyan);
  }

  .dock__label { display: block; }

  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 32px; padding-block: 40px 32px; }
  .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-contact { padding-top: 0; border-top: 0; }
  .footer-contact__list { grid-template-columns: minmax(0, 1fr); }
  .footer-base { flex-direction: column; align-items: flex-start; gap: 10px; }

  .section__note { margin-left: 0; }
}

@keyframes nav-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 10 Motion preferences ---------- */
@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,
  .card:hover { transform: none; }

  .scroll-line__bar { transition: none; }
}