/* =========================================================
   奇异果赛场 /site.css — 共享外壳样式
   夜场墨绿底 · 果肉翡翠绿锚点 · 柠檬黄索引 · 红土橙警示
   ========================================================= */

/* ---------- 1. reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

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

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

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

a { color: inherit; }

table { border-collapse: collapse; }

summary { cursor: pointer; }

/* ---------- 2. 变量 ---------- */
:root {
  --kiwi: #4CAF50;
  --night: #0E1F16;
  --seed: #111411;
  --lemon: #E6FF3B;
  --clay: #D95C2B;
  --turf: #79D66B;
  --mist: #B7C4B4;
  --bone: #F3F0E7;
  --steel: #24352B;

  --font-display: "Noto Sans SC Condensed", "Arial Narrow", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, "Courier New", monospace;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;

  --rail-w: 56px;
  --header-h: 68px;
  --maxw: 1200px;
  --edge: clamp(16px, 2.6vw, 36px);

  --line-soft: rgba(183, 196, 180, 0.18);
  --line-green: rgba(76, 175, 80, 0.34);
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  background-color: var(--night);
  color: rgba(243, 240, 231, 0.9);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(58% 42% at 82% -6%, rgba(76, 175, 80, 0.16), transparent 72%),
    radial-gradient(52% 46% at 4% 104%, rgba(217, 92, 43, 0.10), transparent 72%);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--bone);
}

::selection {
  background: var(--lemon);
  color: var(--seed);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--lemon);
  outline-offset: 3px;
  border-radius: 2px;
}

#main-content { scroll-margin-top: calc(var(--header-h) + 12px); }

/* ---------- 4. 布局工具 ---------- */
.container {
  width: min(100% - 40px, var(--maxw));
  margin-inline: auto;
}

.section { padding-block: clamp(56px, 8vw, 112px); }
.section--tight { padding-block: clamp(32px, 5vw, 64px); }
.section--steel { background: var(--steel); }
.section--seed { background: var(--seed); }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: clamp(24px, 4vw, 48px);
}

.section__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(30px, 4.4vw, 56px);
  letter-spacing: -0.03em;
  line-height: 1.04;
  color: var(--bone);
}

.display {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(56px, 9vw, 120px);
  letter-spacing: -0.04em;
  line-height: 0.94;
  color: var(--bone);
  overflow-wrap: break-word;
}

.display em {
  font-style: normal;
  color: var(--kiwi);
}

.lede {
  max-width: 60ch;
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.7;
  color: rgba(243, 240, 231, 0.9);
}

.prose {
  max-width: 68ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: rgba(243, 240, 231, 0.86);
}

.prose p + p { margin-top: 1.1em; }
.prose strong { color: var(--bone); }

.micro {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lemon);
}

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

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.rule {
  height: 1px;
  border: 0;
  background: var(--line-soft);
}

.rule--lemon {
  background: linear-gradient(90deg, var(--lemon), rgba(230, 255, 59, 0));
}

/* ---------- 5. 按钮 / 标签 / 筛选片 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.06em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

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

.btn--primary {
  background: var(--kiwi);
  color: var(--seed);
}

.btn--primary:hover {
  background: var(--lemon);
  color: var(--seed);
}

.btn--ghost {
  background: transparent;
  border-color: rgba(76, 175, 80, 0.55);
  color: var(--bone);
}

.btn--ghost:hover {
  border-color: var(--lemon);
  color: var(--lemon);
}

.btn--clay {
  background: var(--clay);
  color: var(--bone);
}

.btn--clay:hover {
  background: #b84a20;
  color: var(--bone);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid currentColor;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.tag--clay { color: var(--clay); }
.tag--turf { color: var(--turf); }
.tag--lemon { color: var(--lemon); }
.tag--mist { color: var(--mist); }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid rgba(183, 196, 180, 0.35);
  border-radius: 999px;
  background: transparent;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 12.5px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.06em;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.chip:hover {
  border-color: var(--turf);
  color: var(--bone);
}

.chip[aria-pressed="true"],
.chip.is-active {
  border-color: var(--lemon);
  background: rgba(230, 255, 59, 0.08);
  color: var(--lemon);
}

/* ---------- 6. 形状组件 ---------- */
.cut-panel {
  position: relative;
  padding: clamp(20px, 3vw, 32px);
  padding-right: clamp(26px, 3.6vw, 44px);
  background: var(--steel);
  border-top: 1px solid rgba(76, 175, 80, 0.4);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.cut-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 26px;
  width: 3px;
  background: var(--kiwi);
}

.cut-panel--flat { background: var(--seed); }

.cut-panel--accent { border-top-color: var(--lemon); }

.cut-panel--accent::before { background: var(--lemon); }

.note-card {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--steel);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--kiwi);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.note-card:hover {
  background: #2a3d31;
  border-left-color: var(--lemon);
}

.media-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid rgba(121, 214, 107, 0.28);
  border-radius: 2px;
  background:
    repeating-linear-gradient(45deg, rgba(76, 175, 80, 0.10) 0 6px, rgba(14, 31, 22, 0) 6px 12px),
    linear-gradient(160deg, #16281D, #0B160F);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(243, 240, 231, 0.14) 1px, transparent 1px);
  background-size: 6px 6px;
  opacity: 0.55;
}

.media-frame img,
.media-frame video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

/* ---------- 7. 数据组件 ---------- */
.stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stat__value {
  font-family: var(--font-mono);
  font-size: clamp(34px, 5vw, 64px);
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--lemon);
}

.stat__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.data-table {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(243, 240, 231, 0.88);
}

.data-table th,
.data-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
}

.data-table thead th {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lemon);
  border-bottom-color: rgba(230, 255, 59, 0.4);
  white-space: nowrap;
}

.data-table th[data-num],
.data-table td[data-num] { text-align: right; }

.data-table tbody tr:hover { background: rgba(76, 175, 80, 0.08); }

.ruling-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(16px, 3vw, 40px);
  padding: clamp(20px, 3vw, 32px) var(--edge);
  background: linear-gradient(90deg, rgba(217, 92, 43, 0.20), rgba(14, 31, 22, 0.24));
  border-left: 4px solid var(--clay);
}

.ruling-bar__value {
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 500;
  line-height: 1.1;
  color: var(--lemon);
}

/* ---------- 8. 问答折叠 ---------- */
.accordion {
  border-top: 1px solid var(--line-soft);
}

.accordion__item {
  border-bottom: 1px solid var(--line-soft);
}

.accordion__item > .accordion__trigger {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  width: 100%;
  padding: 20px 0;
  list-style: none;
  background: none;
  border: 0;
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 500;
  line-height: 1.55;
  transition: color 0.2s ease;
}

.accordion__item > .accordion__trigger::-webkit-details-marker { display: none; }

.accordion__item > .accordion__trigger::marker { content: ""; }

.accordion__item > .accordion__trigger:hover { color: var(--lemon); }

.accordion__item[open] > .accordion__trigger { color: var(--lemon); }

.accordion__sign {
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.4;
  color: var(--kiwi);
}

.accordion__panel {
  max-width: 68ch;
  padding: 0 0 22px;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(243, 240, 231, 0.82);
}

.accordion__panel p + p { margin-top: 0.9em; }

/* ---------- 9. 面包屑 ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 26px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist);
}

.breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  transition: color 0.2s ease;
}

.breadcrumb a:hover { color: var(--lemon); }

.breadcrumb__sep { color: rgba(183, 196, 180, 0.45); }

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

/* ---------- 10. 动效 ---------- */
.reveal {
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.js-reveal .reveal {
  opacity: 0;
  transform: translateY(14px);
}

.js-reveal .reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 11. 头部 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 300;
  padding: 11px 18px;
  background: var(--lemon);
  color: var(--seed);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.1em;
  text-decoration: none;
  border-radius: 2px;
  transform: translateY(-220%);
  transition: transform 0.22s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--night);
  border-bottom: 1px solid var(--line-green);
  box-shadow: 0 18px 34px -30px rgba(0, 0, 0, 0.95);
}

.header-bar {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 48px);
  min-height: var(--header-h);
  padding: 0 var(--edge);
}

.header-bar__progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left center;
  background: linear-gradient(90deg, var(--kiwi), var(--lemon));
  pointer-events: none;
}

.frame-rail {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail-w);
  z-index: 90;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  background: var(--seed);
  border-right: 1px solid rgba(76, 175, 80, 0.28);
}

.frame-rail__word,
.frame-rail__mark {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1;
}

.frame-rail__word {
  font-weight: 600;
  letter-spacing: 0.36em;
  color: var(--mist);
}

.frame-rail__mark {
  font-weight: 600;
  letter-spacing: 0.26em;
  color: var(--lemon);
}

.frame-rail__line {
  flex: 1 1 auto;
  width: 1px;
  margin: 14px 0;
  background: linear-gradient(to bottom, transparent, rgba(230, 255, 59, 0.75), transparent);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  text-decoration: none;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: var(--kiwi);
  color: var(--seed);
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  clip-path: polygon(0 0, 100% 0, 100% 72%, 72% 100%, 0 100%);
}

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

.brand__text strong {
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--bone);
}

.brand__text em {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 10.5px;
  line-height: 1;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  padding: 9px 14px;
  background: transparent;
  border: 1px solid rgba(76, 175, 80, 0.5);
  border-radius: 2px;
  color: var(--bone);
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease;
}

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

.nav-toggle__bars {
  display: grid;
  gap: 4px;
  width: 18px;
}

.nav-toggle__bars i {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.nav-toggle__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 30px);
  margin-left: auto;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.6vw, 24px);
}

.nav__link {
  position: relative;
  display: inline-block;
  padding: 10px 2px 12px;
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: 0.04em;
  white-space: nowrap;
  text-decoration: none;
  color: var(--mist);
  transition: color 0.2s ease;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 5px;
  height: 2px;
  background: var(--lemon);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.25s ease;
}

.nav__link:hover { color: var(--bone); }
.nav__link:hover::after { transform: scaleX(1); }

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

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

.nav__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ---------- 12. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(64px, 9vw, 140px);
  padding: clamp(48px, 7vw, 88px) 0 32px;
  background: var(--seed);
  border-top: 1px solid var(--line-green);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 38%;
  height: 3px;
  background: linear-gradient(90deg, var(--kiwi), var(--lemon));
  pointer-events: none;
}

.site-footer::after {
  content: "";
  position: absolute;
  top: 0;
  right: -12%;
  width: 62%;
  height: 100%;
  pointer-events: none;
  background: repeating-linear-gradient(115deg, rgba(76, 175, 80, 0.055) 0 2px, transparent 2px 18px);
}

.site-footer > .container {
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(0, 1fr)) minmax(0, 1.2fr);
  gap: clamp(28px, 4vw, 56px);
}

.footer-brand__name {
  font-family: var(--font-display);
  font-size: clamp(24px, 2.6vw, 34px);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--bone);
}

.footer-brand__about {
  margin-top: 16px;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(243, 240, 231, 0.74);
}

.footer-brand__meta {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--kiwi);
}

.footer-links__title {
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lemon);
}

.footer-links__list li + li { border-top: 1px solid rgba(183, 196, 180, 0.12); }

.footer-links__list a {
  display: inline-block;
  padding: 6px 0;
  font-size: 14.5px;
  line-height: 1.6;
  text-decoration: none;
  color: rgba(243, 240, 231, 0.8);
  transition: color 0.2s ease, transform 0.2s ease;
}

.footer-links__list a:hover {
  color: var(--lemon);
  transform: translateX(3px);
}

.footer-contact__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 6px 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(243, 240, 231, 0.78);
}

.footer-contact__k {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--clay);
}

.footer-contact__note {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: clamp(32px, 5vw, 56px);
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.footer-base__icp { color: var(--mist); }

/* ---------- 13. 平板 ---------- */
@media (max-width: 1023px) {
  :root { --header-h: 62px; }

  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }

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

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-left: 0;
    padding: 6px 20px 26px;
    background: var(--night);
    border-bottom: 1px solid rgba(76, 175, 80, 0.42);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: max-height 0.34s ease, opacity 0.24s ease, visibility 0.34s ease;
  }

  .nav[data-open] {
    max-height: 84vh;
    overflow-y: auto;
    opacity: 1;
    visibility: visible;
  }

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

  .nav__list li + li { border-top: 1px solid rgba(183, 196, 180, 0.16); }

  .nav__link {
    display: block;
    padding: 16px 2px 16px 14px;
    font-size: 15px;
  }

  .nav__link::after { display: none; }

  .nav__link[aria-current="page"] {
    color: var(--kiwi);
    background: rgba(76, 175, 80, 0.07);
  }

  .nav__link[aria-current="page"]::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    width: 6px;
    height: 6px;
    margin-top: -3px;
    background: var(--kiwi);
  }

  .nav__actions {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding-top: 18px;
  }

  .nav__actions .btn { width: 100%; }
}

/* ---------- 14. 桌面框架 ---------- */
@media (min-width: 1024px) {
  body { padding-left: var(--rail-w); }
  .frame-rail { display: flex; }
}

/* ---------- 15. 手机 ---------- */
@media (max-width: 639px) {
  .container { width: min(100% - 32px, var(--maxw)); }

  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }

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

  .brand__text em { display: none; }

  .ruling-bar { border-left-width: 3px; }
}

/* ---------- 16. 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .js-reveal .reveal {
    opacity: 1;
    transform: none;
  }

  .btn:hover { transform: none; }
  .footer-links__list a:hover { transform: none; }
}