/* =========================================================
   皇冠入口 · 共享样式表 /assets/site.css
   夜间服务台视觉体系：深墨蓝夜幕 / 皇冠金灯带 / 暖瓷白导视牌
   ========================================================= */

/* ---------- 1. 变量 ---------- */
:root {
  --cg-night: #08111E;
  --cg-ink: #0F1B2D;
  --cg-ink-soft: #16263D;
  --cg-gold: #C8A24A;
  --cg-gold-deep: #8C6B26;
  --cg-gold-hi: #E6C77A;
  --cg-ceramic: #F5F1E8;
  --cg-paper: #E4DCCB;
  --cg-teal: #6F8A8A;
  --cg-teal-deep: #45605F;
  --cg-crimson: #7A2E2E;
  --cg-steel: #A9B4C0;

  --cg-line-gold: rgba(200, 162, 74, 0.38);
  --cg-line-soft: rgba(200, 162, 74, 0.18);
  --cg-line-ink: rgba(15, 27, 45, 0.14);

  --cg-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, "Times New Roman", serif;
  --cg-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --cg-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Courier New", monospace;

  --cg-radius-xs: 8px;
  --cg-radius-sm: 14px;
  --cg-radius-md: 22px;
  --cg-radius-lg: 32px;
  --cg-radius-pill: 999px;

  --cg-shell: 1180px;
  --cg-gutter: clamp(16px, 4vw, 40px);
  --cg-ease: cubic-bezier(0.22, 0.68, 0.28, 1);

  --cg-shadow-card: 0 1px 0 rgba(255, 255, 255, 0.65) inset, 0 18px 44px -30px rgba(15, 27, 45, 0.55);
  --cg-shadow-lift: 0 28px 64px -36px rgba(8, 17, 30, 0.8);
}

/* ---------- 2. Reset 与中文排版 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--cg-ceramic);
  color: var(--cg-ink);
  font-family: var(--cg-sans);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg,
video { max-width: 100%; }
img { height: auto; }

button,
input,
select,
textarea { font: inherit; color: inherit; }
button { background: none; border: 0; }

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

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

h1,
h2,
h3,
h4,
p { margin: 0; }

:where(h1, h2, h3, h4) {
  font-family: var(--cg-serif);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.012em;
  text-wrap: balance;
}

p { text-wrap: pretty; }

::selection {
  background: var(--cg-gold);
  color: var(--cg-night);
}

:focus-visible {
  outline: 2px solid var(--cg-gold-hi);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 3. 排版工具 ---------- */
.cg-h1 { font-size: clamp(38px, 6.4vw, 88px); }
.cg-h2 { font-size: clamp(26px, 3.6vw, 48px); }
.cg-h3 { font-size: clamp(20px, 2.2vw, 26px); }

.cg-lead {
  font-size: clamp(16px, 1.3vw, 19px);
  line-height: 1.8;
  color: var(--cg-teal-deep);
}

.cg-index {
  display: inline-flex;
  align-items: center;
  gap: 0.55em;
  font-family: var(--cg-mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--cg-gold-deep);
}

.cg-num {
  font-family: var(--cg-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.cg-rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: linear-gradient(90deg, var(--cg-gold), rgba(200, 162, 74, 0));
}
.cg-rule--soft {
  background: linear-gradient(90deg, var(--cg-line-ink), rgba(15, 27, 45, 0));
}

/* ---------- 4. 布局容器 ---------- */
.cg-container {
  width: min(var(--cg-shell), 100% - (var(--cg-gutter) * 2));
  margin-inline: auto;
}

.cg-prose { max-width: 64ch; }

.cg-stack > * + * { margin-block-start: var(--cg-stack, 1.1em); }

.cg-cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.cg-grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}
.cg-grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.cg-grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 258px), 1fr)); }

/* ---------- 5. 按钮 ---------- */
.cg-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  min-height: 48px;
  padding: 12px 26px;
  font-family: var(--cg-sans);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.08em;
  border: 1px solid transparent;
  border-radius: var(--cg-radius-pill);
  cursor: pointer;
  transition: transform 0.22s var(--cg-ease), background-color 0.22s var(--cg-ease),
    color 0.22s var(--cg-ease), border-color 0.22s var(--cg-ease), box-shadow 0.22s var(--cg-ease);
}
.cg-btn:hover { transform: translateY(-2px); }
.cg-btn:active { transform: translateY(0); }

.cg-btn--gold {
  background: linear-gradient(135deg, var(--cg-gold-hi), var(--cg-gold) 62%, #A9832F);
  color: #132035;
  border-color: rgba(230, 199, 122, 0.6);
  box-shadow: 0 16px 34px -20px rgba(200, 162, 74, 0.9);
}
.cg-btn--gold:hover { box-shadow: 0 20px 40px -18px rgba(230, 199, 122, 0.85); }

.cg-btn--ghost {
  background: transparent;
  color: var(--cg-ceramic);
  border-color: rgba(200, 162, 74, 0.55);
}
.cg-btn--ghost:hover {
  background: rgba(200, 162, 74, 0.12);
  border-color: var(--cg-gold-hi);
}

.cg-btn--ink {
  background: var(--cg-ink);
  color: var(--cg-ceramic);
  border-color: rgba(15, 27, 45, 0.2);
}
.cg-btn--ink:hover { background: var(--cg-ink-soft); }

.cg-btn--sm {
  min-height: 40px;
  padding: 8px 18px;
  font-size: 13px;
}

/* ---------- 6. 面包屑 ---------- */
.cg-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cg-teal);
}
.cg-crumbs li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.cg-crumbs li + li::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--cg-gold);
  opacity: 0.75;
}
.cg-crumbs a {
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--cg-ease), border-color 0.2s var(--cg-ease);
}
.cg-crumbs a:hover {
  color: var(--cg-gold-deep);
  border-bottom-color: currentColor;
}
.cg-crumbs [aria-current="page"] { color: var(--cg-ink); }

/* ---------- 7. 卡片 / 标签 / 框景 ---------- */
.cg-card {
  position: relative;
  background: var(--cg-ceramic);
  color: var(--cg-ink);
  border: 1px solid rgba(15, 27, 45, 0.08);
  border-radius: var(--cg-radius-md);
  padding: clamp(20px, 2.6vw, 30px);
  box-shadow: var(--cg-shadow-card);
}

.cg-card--night {
  background: linear-gradient(160deg, #152539, var(--cg-ink) 58%, #0A1524);
  color: var(--cg-ceramic);
  border-color: var(--cg-line-gold);
  box-shadow: var(--cg-shadow-lift);
}
.cg-card--night .cg-lead { color: rgba(245, 241, 232, 0.76); }
.cg-card--night .cg-index { color: var(--cg-gold); }

.cg-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 5px 12px;
  border: 1px solid var(--cg-line-gold);
  border-radius: var(--cg-radius-pill);
  background: rgba(200, 162, 74, 0.08);
  color: var(--cg-gold-deep);
  font-size: 12px;
  letter-spacing: 0.1em;
  line-height: 1.5;
}
.cg-tag--teal {
  border-color: rgba(111, 138, 138, 0.5);
  background: rgba(111, 138, 138, 0.14);
  color: var(--cg-teal-deep);
}
.cg-tag--crimson {
  border-color: rgba(122, 46, 46, 0.35);
  background: rgba(122, 46, 46, 0.09);
  color: var(--cg-crimson);
}
.cg-card--night .cg-tag,
.cg-frame .cg-tag { color: var(--cg-gold-hi); }
.cg-card--night .cg-tag--teal { color: #A7C2C1; }
.cg-card--night .cg-tag--crimson { color: #E4A5A5; border-color: rgba(228, 165, 165, 0.4); background: rgba(122, 46, 46, 0.3); }

.cg-frame {
  position: relative;
  padding: clamp(20px, 3.4vw, 44px);
  border: 1px solid var(--cg-line-gold);
  border-radius: var(--cg-radius-lg);
  background: linear-gradient(168deg, rgba(22, 38, 61, 0.92), rgba(8, 17, 30, 0.97));
  box-shadow: inset 0 0 0 1px rgba(8, 17, 30, 0.6), 0 44px 96px -64px rgba(0, 0, 0, 0.95);
  color: var(--cg-ceramic);
}
.cg-frame::before,
.cg-frame::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 1px solid var(--cg-gold-hi);
  opacity: 0.85;
}
.cg-frame::before {
  inset-block-start: -1px;
  inset-inline-start: -1px;
  border-width: 1px 0 0 1px;
  border-start-start-radius: var(--cg-radius-lg);
}
.cg-frame::after {
  inset-block-end: -1px;
  inset-inline-end: -1px;
  border-width: 0 1px 1px 0;
  border-end-end-radius: var(--cg-radius-lg);
}
.cg-frame__scale {
  height: 8px;
  background-image: repeating-linear-gradient(90deg, var(--cg-line-gold) 0 1px, transparent 1px 14px);
  opacity: 0.85;
}

/* ---------- 8. 影像容器 ---------- */
.cg-media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  isolation: isolate;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--cg-line-soft);
  border-radius: var(--cg-radius-md);
  background: linear-gradient(160deg, var(--cg-ink-soft), #0A1524);
}
.cg-media img,
.cg-media video,
.cg-media svg {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cg-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(8, 17, 30, 0) 52%, rgba(8, 17, 30, 0.48));
}
.cg-media--wide { aspect-ratio: 21 / 9; }
.cg-media--tall { aspect-ratio: 3 / 4; }
.cg-media--square { aspect-ratio: 1 / 1; }

.cg-media--empty::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(135deg, rgba(200, 162, 74, 0.16) 0 1px, transparent 1px 14px);
}

.cg-media__caption {
  position: absolute;
  inset-block-end: 0;
  inset-inline: 0;
  z-index: 2;
  margin: 0;
  padding: 14px clamp(14px, 2vw, 20px);
  font-family: var(--cg-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cg-gold-hi);
  text-transform: uppercase;
}

/* ---------- 9. 跳转链接与进度条 ---------- */
.cg-skip {
  position: fixed;
  z-index: 120;
  inset-block-start: 8px;
  inset-inline-start: 8px;
  transform: translateY(-180%);
  padding: 12px 20px;
  border-radius: var(--cg-radius-pill);
  background: var(--cg-gold);
  color: var(--cg-night);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  transition: transform 0.22s var(--cg-ease);
}
.cg-skip:focus,
.cg-skip:focus-visible {
  transform: translateY(0);
  outline: 2px solid var(--cg-ceramic);
  outline-offset: 2px;
}

.cg-progress {
  position: fixed;
  inset-block-start: 0;
  inset-inline-start: 0;
  width: 100%;
  height: 3px;
  z-index: 90;
  pointer-events: none;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cg-gold), var(--cg-gold-hi));
  box-shadow: 0 0 14px rgba(230, 199, 122, 0.55);
}

/* ---------- 10. 页头 ---------- */
.cg-header {
  position: relative;
  z-index: 50;
  color: var(--cg-ceramic);
  background: radial-gradient(120% 160% at 50% -20%, #182A44 0%, var(--cg-ink) 48%, var(--cg-night) 100%);
  border-bottom: 1px solid var(--cg-line-gold);
}

.cg-header__inner {
  position: relative;
  width: min(var(--cg-shell), 100% - 32px);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 14px;
  padding-block: clamp(16px, 2.4vw, 26px) 10px;
}
.cg-header__inner::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(200, 162, 74, 0.5), rgba(230, 199, 122, 0.95), rgba(200, 162, 74, 0.5), transparent);
}

.cg-header__tick {
  font-family: var(--cg-mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--cg-steel);
  text-transform: uppercase;
  white-space: nowrap;
}
.cg-header__tick--start { justify-self: start; }
.cg-header__tick--end { justify-self: end; }

.cg-brand {
  display: grid;
  justify-items: center;
  gap: 4px;
  padding: 4px 14px;
  border-radius: var(--cg-radius-sm);
  color: var(--cg-ceramic);
  text-decoration: none;
  transition: color 0.25s var(--cg-ease);
}
.cg-brand__crown {
  display: block;
  width: clamp(26px, 4vw, 36px);
  height: clamp(17px, 2.6vw, 23px);
  background: linear-gradient(180deg, var(--cg-gold-hi), var(--cg-gold) 58%, #96742B);
  clip-path: polygon(0 100%, 4% 26%, 23% 56%, 50% 4%, 77% 56%, 96% 26%, 100% 100%);
  filter: drop-shadow(0 2px 10px rgba(200, 162, 74, 0.5));
  transition: transform 0.32s var(--cg-ease);
}
.cg-brand:hover .cg-brand__crown { transform: translateY(-2px) scale(1.05); }
.cg-brand:hover .cg-brand__name { color: var(--cg-gold-hi); }

.cg-brand__name {
  font-family: var(--cg-serif);
  font-weight: 900;
  font-size: clamp(21px, 3.2vw, 30px);
  line-height: 1.15;
  letter-spacing: 0.14em;
  text-indent: 0.14em;
  transition: color 0.25s var(--cg-ease);
}
.cg-brand__sub {
  font-family: var(--cg-mono);
  font-size: 10px;
  letter-spacing: 0.28em;
  color: var(--cg-steel);
  text-transform: uppercase;
  text-indent: 0.28em;
}

/* ---------- 11. 导航 ---------- */
.cg-nav {
  position: relative;
  width: 100%;
  border-top: 1px solid var(--cg-line-soft);
}
.cg-nav__list {
  width: min(var(--cg-shell), 100% - 32px);
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(2px, 1.8vw, 26px);
  padding-block: 4px 10px;
}
.cg-nav__link {
  position: relative;
  display: inline-block;
  padding: 10px 6px 12px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: rgba(245, 241, 232, 0.72);
  border-radius: var(--cg-radius-xs);
  transition: color 0.22s var(--cg-ease);
}
.cg-nav__link::after {
  content: "";
  position: absolute;
  inset-inline: 6px;
  inset-block-end: 6px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cg-gold), var(--cg-gold-hi));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s var(--cg-ease);
}
.cg-nav__link:hover,
.cg-nav__link:focus-visible { color: var(--cg-ceramic); }
.cg-nav__link:hover::after { transform: scaleX(0.62); }
.cg-nav__link[aria-current="page"] {
  color: var(--cg-gold-hi);
  font-weight: 500;
}
.cg-nav__link[aria-current="page"]::after { transform: scaleX(1); }

/* 移动导航按钮（桌面隐藏） */
.cg-navtoggle { display: none; }

/* ---------- 12. 页脚 ---------- */
.cg-footer {
  position: relative;
  color: var(--cg-ceramic);
  background: radial-gradient(150% 130% at 50% 0%, #16283F 0%, var(--cg-ink) 42%, var(--cg-night) 100%);
  border-top: 1px solid var(--cg-line-gold);
  padding-block: clamp(40px, 6vw, 76px) 0;
}
.cg-footer::before {
  content: "";
  position: absolute;
  inset-block-start: -1px;
  inset-inline-start: 50%;
  width: min(420px, 62%);
  height: 2px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, var(--cg-gold-hi), transparent);
  box-shadow: 0 0 26px 4px rgba(200, 162, 74, 0.32);
}

.cg-footer__inner {
  width: min(var(--cg-shell), 100% - (var(--cg-gutter) * 2));
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 56px);
  align-items: start;
}

.cg-footer__lead {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.cg-footer__eyebrow {
  font-family: var(--cg-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--cg-gold);
}
.cg-footer__title {
  margin-block: 14px 10px;
  max-width: 15em;
  font-family: var(--cg-serif);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.26;
  letter-spacing: -0.01em;
  color: var(--cg-ceramic);
}
.cg-footer__desc {
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--cg-steel);
}
.cg-footer__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-block-start: 22px;
}

.cg-footer__nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(158px, 1fr));
  gap: clamp(20px, 3vw, 36px);
}
.cg-footer__col {
  display: flex;
  flex-direction: column;
}
.cg-footer__heading {
  margin-block-end: 14px;
  padding-block-end: 10px;
  border-bottom: 1px solid var(--cg-line-soft);
  font-family: var(--cg-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.26em;
  color: var(--cg-gold);
}
.cg-footer__list {
  display: grid;
  gap: 10px;
}
.cg-footer__list a,
.cg-footer__list span {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.78);
  overflow-wrap: anywhere;
}
.cg-footer__list a {
  display: inline;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--cg-ease), border-color 0.2s var(--cg-ease);
}
.cg-footer__list a:hover {
  color: var(--cg-gold-hi);
  border-bottom-color: rgba(230, 199, 122, 0.7);
}

.cg-footer__base {
  width: min(var(--cg-shell), 100% - (var(--cg-gutter) * 2));
  margin: clamp(32px, 4vw, 56px) auto 0;
  padding-block: 20px clamp(24px, 3vw, 36px);
  border-top: 1px solid var(--cg-line-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  font-size: 12px;
  line-height: 1.9;
  color: var(--cg-steel);
}
.cg-footer__legal { max-width: 62ch; }
.cg-footer__icp {
  font-family: var(--cg-mono);
  letter-spacing: 0.06em;
  color: var(--cg-steel);
}

/* ---------- 13. 滚动显现 ---------- */
[data-reveal] {
  transition: opacity 0.65s var(--cg-ease), transform 0.65s var(--cg-ease);
}
[data-js="on"] [data-reveal]:not([data-reveal="in"]) {
  opacity: 0;
  transform: translateY(18px);
}

/* ---------- 14. 响应式：桌面加强 ---------- */
@media (min-width: 900px) {
  .cg-footer__inner {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
    gap: clamp(40px, 5vw, 72px);
  }
}

@media (min-width: 861px) and (max-width: 1080px) {
  .cg-nav__link { font-size: 12px; letter-spacing: 0.1em; }
  .cg-header__tick { letter-spacing: 0.16em; }
}

/* ---------- 15. 响应式：移动端与平板 ---------- */
@media (max-width: 860px) {
  .cg-header__inner {
    grid-template-columns: 1fr auto;
    gap: 10px;
    padding-block: 14px 12px;
  }
  .cg-header__tick { display: none; }

  .cg-brand {
    justify-items: start;
    gap: 2px;
    padding: 0;
  }
  .cg-brand__name { font-size: 22px; letter-spacing: 0.12em; }
  .cg-brand__sub { font-size: 9px; letter-spacing: 0.22em; }

  .cg-navtoggle {
    display: inline-flex;
    position: absolute;
    inset-block-start: 50%;
    inset-inline-end: 0;
    transform: translateY(-50%);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    min-width: 48px;
    min-height: 48px;
    padding: 6px 12px;
    border: 1px solid var(--cg-line-gold);
    border-radius: var(--cg-radius-sm);
    background: rgba(8, 17, 30, 0.62);
    color: var(--cg-ceramic);
    cursor: pointer;
    transition: border-color 0.2s var(--cg-ease), background-color 0.2s var(--cg-ease);
  }
  .cg-navtoggle:hover {
    border-color: var(--cg-gold-hi);
    background: rgba(200, 162, 74, 0.12);
  }
  .cg-navtoggle__bars {
    display: grid;
    gap: 5px;
    width: 20px;
  }
  .cg-navtoggle__bars span {
    display: block;
    height: 1.5px;
    width: 100%;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--cg-gold-hi), var(--cg-gold));
    transition: transform 0.26s var(--cg-ease);
  }
  .cg-header[data-open] .cg-navtoggle__bars span:first-child { transform: translateY(3.25px) rotate(45deg); }
  .cg-header[data-open] .cg-navtoggle__bars span:last-child { transform: translateY(-3.25px) rotate(-45deg); }
  .cg-navtoggle__label {
    font-family: var(--cg-mono);
    font-size: 9px;
    letter-spacing: 0.18em;
    color: var(--cg-steel);
  }

  .cg-nav {
    max-height: 0;
    overflow: hidden;
    border-top: 1px solid transparent;
    transition: max-height 0.34s var(--cg-ease), border-color 0.3s var(--cg-ease);
  }
  .cg-header[data-open] .cg-nav,
  .cg-nav[data-open] {
    max-height: min(72vh, 540px);
    overflow-y: auto;
    border-top-color: var(--cg-line-soft);
  }

  .cg-nav__list {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px clamp(16px, 4vw, 24px) 20px;
  }
  .cg-nav__link {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 10px 14px;
    font-size: 15px;
    letter-spacing: 0.1em;
    border-left: 2px solid transparent;
    border-radius: 0 var(--cg-radius-sm) var(--cg-radius-sm) 0;
  }
  .cg-nav__link::after { display: none; }
  .cg-nav__link[aria-current="page"] {
    color: var(--cg-gold-hi);
    background: rgba(200, 162, 74, 0.1);
    border-left-color: var(--cg-gold);
  }

  .cg-footer { padding-block: clamp(36px, 8vw, 56px) 0; }
  .cg-footer__list a,
  .cg-footer__list span { font-size: 13px; }
}

@media (max-width: 520px) {
  .cg-btn { width: 100%; }
  .cg-footer__actions .cg-btn { width: 100%; }
  .cg-footer__base {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  .cg-crumbs { font-size: 11px; letter-spacing: 0.08em; }
}

/* ---------- 16. 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-js="on"] [data-reveal]:not([data-reveal="in"]) {
    opacity: 1;
    transform: none;
  }
  .cg-btn:hover { transform: none; }
  .cg-brand:hover .cg-brand__crown { transform: none; }
}