/* ==========================================================================
   A8看台 · 共享样式表 /assets/site.css
   深空蓝底 + 荧光青数字 + 暖橙行动点 + 球场绿状态
   ========================================================================== */

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

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

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

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

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

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

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

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

/* ---------- tokens ---------- */
:root {
  --a8-void: #050A16;
  --a8-panel: #0C1428;
  --a8-turf: #0A2E2C;
  --a8-indigo: #1A1240;
  --a8-oxblood: #3B1220;

  --a8-cyan: #35F1DE;
  --a8-orange: #FF7A2E;
  --a8-pitch: #35C46B;

  --a8-paper: #F3F0E7;
  --a8-ash: #2B3550;
  --a8-slate: #9DA8C0;

  --a8-font-display: 'A8 Display', 'Inter Tight', 'HarmonyOS Sans SC', 'Source Han Sans SC', system-ui, sans-serif;
  --a8-font-num: ui-monospace, 'JetBrains Mono', 'SFMono-Regular', 'Roboto Mono', monospace;
  --a8-font-body: 'PingFang SC', 'Noto Sans SC', 'Hiragino Sans GB', system-ui, sans-serif;

  --a8-shell: 1280px;
  --a8-gutter: clamp(1rem, 4vw, 3rem);
  --a8-rule: 1px solid var(--a8-ash);
  --a8-rule-soft: 1px solid rgba(43, 53, 80, 0.62);

  --a8-dur: 160ms;
  --a8-dur-fast: 140ms;
  --a8-ease: cubic-bezier(0.22, 0.61, 0.28, 1);

  --a8-hero: clamp(3.4rem, 9vw, 8.2rem);
  --a8-score: clamp(2.6rem, 6vw, 5.4rem);
  --a8-section: clamp(1.8rem, 3.4vw, 3rem);
  --a8-quote: clamp(1.25rem, 2vw, 1.6rem);
}

/* ---------- base ---------- */
html { background-color: var(--a8-void); }

body {
  min-height: 100vh;
  background-color: var(--a8-void);
  background-image:
    radial-gradient(900px 520px at 88% -8%, rgba(53, 241, 222, 0.08), transparent 70%),
    radial-gradient(760px 460px at 4% 4%, rgba(255, 122, 46, 0.06), transparent 70%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--a8-paper);
  font-family: var(--a8-font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

[hidden] { display: none !important; }

::selection {
  background: var(--a8-cyan);
  color: var(--a8-void);
}

/* ---------- focus ---------- */
:focus-visible {
  outline: 2px solid var(--a8-cyan);
  outline-offset: 2px;
  border-radius: 1px;
}

.a8-nav__link:focus-visible,
.a8-quick__list a:focus-visible,
.a8-fav:focus-visible,
.a8-burger:focus-visible {
  outline-offset: 0;
}

/* ---------- layout primitives ---------- */
.a8-shell {
  width: 100%;
  max-width: var(--a8-shell);
  margin-inline: auto;
  padding-inline: var(--a8-gutter);
}

.a8-grid { display: grid; gap: clamp(1.25rem, 3vw, 2.5rem); }

.a8-grid--rail {
  grid-template-columns: minmax(220px, 1fr) minmax(0, 3fr);
  align-items: start;
}

.a8-rail {
  position: sticky;
  top: 150px;
  align-self: start;
}

.a8-section { padding-block: clamp(2.5rem, 6vw, 5rem); }
.a8-section--tight { padding-block: clamp(1.75rem, 4vw, 3rem); }

.a8-scanline {
  height: 1px;
  border: 0;
  margin: 0;
  background: linear-gradient(90deg, transparent 0%, var(--a8-cyan) 18%, var(--a8-ash) 52%, transparent 100%);
  opacity: 0.7;
}

/* ---------- typography helpers ---------- */
.a8-display {
  font-family: var(--a8-font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 0.94;
  font-size: var(--a8-hero);
}

.a8-section-title {
  font-family: var(--a8-font-display);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.08;
  font-size: var(--a8-section);
}

.a8-num {
  font-family: var(--a8-font-num);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  letter-spacing: -0.01em;
}

.a8-label {
  font-family: var(--a8-font-num);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--a8-slate);
}

.a8-lead {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.72;
  color: #D8DCE7;
  max-width: 68ch;
}

.a8-note {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--a8-slate);
  max-width: 62ch;
}

.a8-anchor { scroll-margin-top: 170px; }

/* ---------- tag / label component ---------- */
.a8-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.35rem 0.72rem;
  border: 1px solid var(--a8-ash);
  border-radius: 2px;
  background: rgba(12, 20, 40, 0.6);
  font-family: var(--a8-font-num);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--a8-slate);
  transition: transform var(--a8-dur) var(--a8-ease),
              border-color var(--a8-dur) var(--a8-ease),
              color var(--a8-dur) var(--a8-ease);
}

.a8-tag__no {
  color: var(--a8-cyan);
  font-weight: 700;
}

.a8-tag:hover {
  transform: translateY(-2px);
  border-color: var(--a8-cyan);
  color: var(--a8-paper);
}

/* ---------- buttons ---------- */
.a8-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border: 1px solid var(--a8-ash);
  border-radius: 2px;
  background: transparent;
  color: var(--a8-paper);
  font-family: var(--a8-font-body);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.2;
  transition: transform var(--a8-dur) var(--a8-ease),
              border-color var(--a8-dur) var(--a8-ease),
              background-color var(--a8-dur) var(--a8-ease),
              color var(--a8-dur) var(--a8-ease);
}

.a8-btn--primary {
  background: var(--a8-orange);
  border-color: var(--a8-orange);
  color: #180A02;
  font-weight: 600;
}

.a8-btn--primary:hover { background: #FF9250; transform: translateY(-2px); }

.a8-btn--ghost:hover {
  border-color: var(--a8-cyan);
  color: var(--a8-cyan);
  transform: translateY(-2px);
}

/* ---------- favorite toggle ---------- */
.a8-favbtn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--a8-ash);
  border-radius: 2px;
  font-size: 0.85rem;
  color: var(--a8-slate);
  transition: background-color var(--a8-dur) var(--a8-ease),
              border-color var(--a8-dur) var(--a8-ease),
              color var(--a8-dur) var(--a8-ease),
              transform var(--a8-dur) var(--a8-ease);
}

.a8-favbtn::before {
  content: "";
  width: 8px;
  height: 8px;
  border: 1px solid currentColor;
  border-radius: 1px;
  transform: rotate(45deg);
}

.a8-favbtn:hover { border-color: var(--a8-cyan); color: var(--a8-cyan); transform: translateY(-2px); }

.a8-favbtn[aria-pressed="true"] {
  background: var(--a8-cyan);
  border-color: var(--a8-cyan);
  color: var(--a8-void);
  font-weight: 600;
}

.a8-favbtn[aria-pressed="true"]::before { background: var(--a8-void); border-color: var(--a8-void); }

/* ---------- filter tabs ---------- */
.a8-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.a8-filter__tab {
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--a8-ash);
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--a8-slate);
  transition: background-color var(--a8-dur) var(--a8-ease),
              border-color var(--a8-dur) var(--a8-ease),
              color var(--a8-dur) var(--a8-ease);
}

.a8-filter__tab:hover { border-color: var(--a8-cyan); color: var(--a8-paper); }

.a8-filter__tab[aria-selected="true"] {
  background: var(--a8-cyan);
  border-color: var(--a8-cyan);
  color: var(--a8-void);
  font-weight: 600;
}

.a8-filter__empty {
  padding: 1.5rem 0;
  font-size: 0.9rem;
  color: var(--a8-slate);
}

/* ---------- media containers ---------- */
.a8-media {
  position: relative;
  overflow: hidden;
  border: var(--a8-rule);
  border-radius: 2px;
  background-color: var(--a8-panel);
  background-image: linear-gradient(142deg, #0C1428 0%, #050A16 62%, #0A2E2C 100%);
}

.a8-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.a8-media--hero { aspect-ratio: 16 / 9; }
.a8-media--wide { aspect-ratio: 16 / 9; }
.a8-media--tall { aspect-ratio: 3 / 4; }
.a8-media--band { aspect-ratio: 16 / 6; }
.a8-media--square { aspect-ratio: 1 / 1; }

/* ---------- breadcrumb ---------- */
.a8-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding-block: 1.25rem 0;
  font-family: var(--a8-font-num);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--a8-slate);
}

.a8-breadcrumb li { display: inline-flex; align-items: center; gap: 0.5rem; }
.a8-breadcrumb li + li::before { content: "/"; color: var(--a8-ash); }
.a8-breadcrumb a:hover { color: var(--a8-cyan); }

/* ---------- prose ---------- */
.a8-prose {
  max-width: 66ch;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: #DEE2EB;
}

.a8-prose > * + * { margin-top: 1.1em; }
.a8-prose h2,
.a8-prose h3 {
  font-family: var(--a8-font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--a8-paper);
}
.a8-prose h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); margin-top: 2.2em; }
.a8-prose h3 { font-size: clamp(1.2rem, 1.7vw, 1.45rem); margin-top: 1.8em; }
.a8-prose strong { color: var(--a8-paper); font-weight: 600; }
.a8-prose a { color: var(--a8-cyan); border-bottom: 1px solid rgba(53, 241, 222, 0.4); }
.a8-prose a:hover { border-bottom-color: var(--a8-cyan); }

/* ==========================================================================
   共享页头
   ========================================================================== */

.a8-skip {
  position: fixed;
  left: var(--a8-gutter);
  top: -6rem;
  z-index: 200;
  padding: 0.6rem 1rem;
  background: var(--a8-cyan);
  color: var(--a8-void);
  font-family: var(--a8-font-num);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  border-radius: 2px;
  transition: top var(--a8-dur) var(--a8-ease);
}

.a8-skip:focus { top: 0.75rem; }

.a8-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: #050A16;
  border-bottom: var(--a8-rule);
}

/* --- 品牌条 --- */
.a8-header__brandbar {
  background: var(--a8-void);
  border-bottom: var(--a8-rule-soft);
}

.a8-brandbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 1.75rem;
  flex-wrap: wrap;
  padding-block: 0.65rem;
}

.a8-brandbar__id {
  display: flex;
  align-items: baseline;
  gap: 1.1rem;
  flex-wrap: wrap;
  min-width: 0;
}

.a8-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.a8-brand__mark {
  display: inline-block;
  padding: 0.2rem 0.42rem;
  background: var(--a8-cyan);
  color: var(--a8-void);
  border-radius: 2px;
  font-family: var(--a8-font-num);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
}

.a8-brand__text { display: inline-flex; align-items: baseline; gap: 0.55rem; }

.a8-brand__name {
  font-family: var(--a8-font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--a8-paper);
}

.a8-brand__sub {
  font-family: var(--a8-font-num);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--a8-slate);
}

.a8-brandbar__tagline {
  font-family: var(--a8-font-num);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--a8-slate);
}

.a8-brandbar__contact {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.a8-mini {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  font-size: 0.78rem;
  color: var(--a8-slate);
  transition: color var(--a8-dur) var(--a8-ease);
}

.a8-mini__k {
  font-family: var(--a8-font-num);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--a8-slate);
  opacity: 0.72;
}

.a8-mini__v {
  font-family: var(--a8-font-num);
  font-size: 0.78rem;
  color: var(--a8-paper);
  transition: color var(--a8-dur) var(--a8-ease);
}

.a8-mini:hover .a8-mini__v { color: var(--a8-cyan); }

/* --- 栏目条 --- */
.a8-navbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 56px;
}

.a8-nav { flex: 1 1 auto; min-width: 0; }

.a8-nav__list {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex-wrap: wrap;
}

.a8-nav__link {
  display: inline-block;
  padding: 0.9rem 0.95rem;
  border-bottom: 2px solid transparent;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--a8-slate);
  transition: color var(--a8-dur) var(--a8-ease),
              background-color var(--a8-dur) var(--a8-ease),
              border-color var(--a8-dur) var(--a8-ease);
}

.a8-nav__link:hover {
  color: var(--a8-paper);
  background: rgba(53, 241, 222, 0.06);
}

.a8-nav__link[aria-current="page"] {
  color: var(--a8-paper);
  border-bottom-color: var(--a8-cyan);
}

.a8-fav {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  flex: 0 0 auto;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--a8-ash);
  border-radius: 2px;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--a8-paper);
  transition: border-color var(--a8-dur) var(--a8-ease),
              transform var(--a8-dur) var(--a8-ease),
              color var(--a8-dur) var(--a8-ease);
}

.a8-fav::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--a8-cyan);
  border-radius: 1px;
  transform: rotate(45deg);
}

.a8-fav:hover {
  border-color: var(--a8-cyan);
  color: var(--a8-cyan);
  transform: translateY(-2px);
}

/* --- 汉堡按钮 --- */
.a8-burger {
  display: none;
  align-items: center;
  gap: 0.55rem;
  flex: 0 0 auto;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--a8-ash);
  border-radius: 2px;
  font-family: var(--a8-font-num);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--a8-slate);
  transition: border-color var(--a8-dur) var(--a8-ease), color var(--a8-dur) var(--a8-ease);
}

.a8-burger:hover { border-color: var(--a8-cyan); color: var(--a8-cyan); }

.a8-burger__bars {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: background-color var(--a8-dur) var(--a8-ease);
}

.a8-burger__bars::before,
.a8-burger__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform var(--a8-dur) var(--a8-ease);
}

.a8-burger__bars::before { top: -6px; }
.a8-burger__bars::after { top: 6px; }

[data-nav-toggle][aria-expanded="true"] .a8-burger__bars { background: transparent; }
[data-nav-toggle][aria-expanded="true"] .a8-burger__bars::before { transform: translateY(6px) rotate(45deg); }
[data-nav-toggle][aria-expanded="true"] .a8-burger__bars::after { transform: translateY(-6px) rotate(-45deg); }

/* --- 快捷条 --- */
.a8-header__quick {
  background: var(--a8-panel);
  border-top: var(--a8-rule-soft);
}

.a8-quick {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding-block: 0.5rem;
}

.a8-quick__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  flex: 0 0 auto;
  font-family: var(--a8-font-num);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--a8-cyan);
}

.a8-quick__chev {
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
  transition: transform var(--a8-dur) var(--a8-ease);
}

.a8-quick__toggle[aria-expanded="false"] .a8-quick__chev {
  transform: rotate(-135deg) translate(-1px, -1px);
}

.a8-quick__list {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  min-width: 0;
}

.a8-quick__list a {
  display: inline-block;
  padding: 0.26rem 0.72rem;
  border: 1px solid var(--a8-ash);
  border-radius: 999px;
  font-size: 0.78rem;
  color: var(--a8-slate);
  white-space: nowrap;
  transition: background-color var(--a8-dur) var(--a8-ease),
              border-color var(--a8-dur) var(--a8-ease),
              color var(--a8-dur) var(--a8-ease);
}

.a8-quick__list a:hover {
  background: var(--a8-cyan);
  border-color: var(--a8-cyan);
  color: var(--a8-void);
}

.a8-quick[data-collapsed="true"] .a8-quick__list > li:nth-child(n + 6) { display: none; }

/* ==========================================================================
   阅读进度线（脚本注入）
   ========================================================================== */
.a8-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  z-index: 90;
  pointer-events: none;
  background: transparent;
}

.a8-progress__bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--a8-cyan) 0%, #6FE9C8 55%, var(--a8-orange) 100%);
  box-shadow: 0 0 12px rgba(53, 241, 222, 0.5);
}

/* ==========================================================================
   共享页脚
   ========================================================================== */

.a8-footer {
  margin-top: clamp(3rem, 8vw, 7rem);
  background: var(--a8-panel);
  border-top: var(--a8-rule);
}

.a8-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: 2rem 2.5rem;
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}

.a8-footer__brand {
  font-family: var(--a8-font-display);
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--a8-paper);
}

.a8-footer__sign {
  margin-top: 0.35rem;
  font-family: var(--a8-font-num);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--a8-cyan);
}

.a8-footer__line {
  margin-top: 0.95rem;
  max-width: 34ch;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--a8-slate);
}

.a8-footer__icp {
  margin-top: 1rem;
  font-family: var(--a8-font-num);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--a8-slate);
}

.a8-footer__title {
  margin-bottom: 0.95rem;
  font-family: var(--a8-font-num);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--a8-slate);
}

.a8-footer__list li + li { margin-top: 0.5rem; }

.a8-footer__list a {
  font-size: 0.88rem;
  color: var(--a8-paper);
  opacity: 0.82;
  transition: color var(--a8-dur) var(--a8-ease), opacity var(--a8-dur) var(--a8-ease);
}

.a8-footer__list a:hover { color: var(--a8-cyan); opacity: 1; }

.a8-footer__contact { display: grid; gap: 0.75rem; }

.a8-footer__contact dt {
  font-family: var(--a8-font-num);
  font-size: 0.64rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--a8-slate);
  opacity: 0.8;
}

.a8-footer__contact dd {
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--a8-paper);
  overflow-wrap: anywhere;
}

.a8-footer__contact a {
  font-family: var(--a8-font-num);
  transition: color var(--a8-dur) var(--a8-ease);
}

.a8-footer__contact a:hover { color: var(--a8-cyan); }

.a8-footer__legal {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  flex-wrap: wrap;
  padding-block: 1.1rem;
  border-top: var(--a8-rule);
  font-family: var(--a8-font-num);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--a8-slate);
}

/* ==========================================================================
   响应式
   ========================================================================== */

@media (max-width: 1080px) {
  .a8-grid--rail { grid-template-columns: minmax(200px, 1fr) minmax(0, 2.6fr); }
  .a8-footer__grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .a8-footer__col--brand { grid-column: 1 / -1; }
}

@media (max-width: 880px) {
  .a8-grid--rail { grid-template-columns: 1fr; }
  .a8-rail { position: static; top: auto; }

  .a8-burger { display: inline-flex; }
  .a8-navbar { justify-content: space-between; }

  .a8-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: auto;
    width: min(88vw, 380px);
    padding: 5.5rem 1.5rem 2.5rem;
    background: var(--a8-panel);
    border-left: var(--a8-rule);
    overflow-y: auto;
    transform: translateX(101%);
    transition: transform var(--a8-dur) var(--a8-ease);
    z-index: 70;
  }

  .a8-nav[data-open="true"] { transform: translateX(0); }

  .a8-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .a8-nav__link {
    display: block;
    width: 100%;
    padding: 1rem 0 1rem 0.85rem;
    border-bottom: var(--a8-rule-soft);
    border-left: 2px solid transparent;
    font-size: 1.1rem;
  }

  .a8-nav__link:hover { background: transparent; color: var(--a8-cyan); }

  .a8-nav__link[aria-current="page"] {
    border-bottom-color: var(--a8-rule-soft);
    border-left-color: var(--a8-cyan);
    color: var(--a8-cyan);
  }

  .a8-quick { gap: 0.75rem; }
}

@media (max-width: 760px) {
  .a8-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .a8-brandbar__tagline { display: none; }
  .a8-brandbar__contact { gap: 1.1rem; }
  .a8-footer__grid { grid-template-columns: 1fr; gap: 2rem; }
  .a8-footer__legal { font-size: 0.7rem; }
  .a8-quick__list a { font-size: 0.74rem; }
}

/* ==========================================================================
   无障碍 · 减少动效
   ========================================================================== */
@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;
    transition-delay: 0ms !important;
  }

  .a8-btn:hover,
  .a8-btn--primary:hover,
  .a8-btn--ghost:hover,
  .a8-fav:hover,
  .a8-favbtn:hover,
  .a8-tag:hover { transform: none; }

  .a8-progress__bar { box-shadow: none; }
}