/* ==========================================================================
   银河娱乐中心 · A3TE 中文站  共享样式 /assets/site.css
   深空基底 · 轨道层 · Bento 模块
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  margin: 0;
  min-height: 100%;
  background-color: #060B1F;
  color: #93A0C8;
  font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; }
hr { border: 0; }

::selection { background: rgba(108, 76, 241, .55); color: #E8ECFF; }

/* ---------- 2. 变量 ---------- */
:root {
  --gx-void: #060B1F;
  --gx-galaxy: #101A3C;
  --gx-orbit: #1E2E63;
  --gx-nebula-panel: #241454;
  --gx-nebula: #6C4CF1;
  --gx-cyan: #22D3EE;
  --gx-gold: #F5B942;
  --gx-mint: #5EEAD4;
  --gx-star: #E8ECFF;
  --gx-dust: #93A0C8;

  --gx-font-head: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --gx-font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --gx-font-mono: ui-monospace, SFMono-Regular, "JetBrains Mono", "Noto Sans Mono CJK SC", Consolas, "Courier New", monospace;

  --gx-radius-s: 14px;
  --gx-radius-m: 20px;
  --gx-radius-l: 28px;
  --gx-radius-pill: 999px;

  --gx-ease: cubic-bezier(.22, .61, .36, 1);
  --gx-fast: 160ms;
  --gx-base: 240ms;

  --gx-line: rgba(34, 211, 238, .16);
  --gx-line-strong: rgba(34, 211, 238, .42);
  --gx-gap: 24px;
  --gx-shell-max: 1280px;
}

/* ---------- 3. 深空背景 ---------- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(900px 620px at 8% -6%, rgba(108, 76, 241, .30), transparent 62%),
    radial-gradient(760px 520px at 96% 2%, rgba(34, 211, 238, .15), transparent 60%),
    radial-gradient(1100px 700px at 50% 108%, rgba(36, 20, 84, .70), transparent 64%),
    linear-gradient(180deg, #060B1F 0%, #080E28 46%, #060B1F 100%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .5;
  background-image:
    radial-gradient(1.4px 1.4px at 24px 36px, rgba(232, 236, 255, .85), transparent 60%),
    radial-gradient(1.1px 1.1px at 132px 92px, rgba(34, 211, 238, .70), transparent 60%),
    radial-gradient(1.2px 1.2px at 208px 168px, rgba(232, 236, 255, .55), transparent 60%),
    radial-gradient(1px 1px at 76px 224px, rgba(140, 110, 255, .85), transparent 60%),
    radial-gradient(1.3px 1.3px at 268px 268px, rgba(232, 236, 255, .45), transparent 60%);
  background-size: 300px 300px;
  background-repeat: repeat;
}

/* ---------- 4. 排版 ---------- */
h1, h2, h3, h4 {
  font-family: var(--gx-font-head);
  font-weight: 800;
  color: var(--gx-star);
  letter-spacing: .04em;
  line-height: 1.28;
  margin: 0 0 .6em;
}
h1 { font-size: clamp(32px, 4.6vw, 52px); }
h2 { font-size: clamp(24px, 2.6vw, 32px); }
h3 { font-size: clamp(18px, 1.6vw, 20px); letter-spacing: .03em; }
h4 { font-size: 16px; letter-spacing: .02em; }

p { margin: 0 0 1rem; max-width: 42em; }
p:last-child { margin-bottom: 0; }

a { color: inherit; }

.gx-mono {
  font-family: var(--gx-font-mono);
  letter-spacing: .02em;
}

.gx-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--gx-font-mono);
  font-size: 12.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gx-cyan);
}
.gx-eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, var(--gx-cyan), transparent);
}

.gx-lead { font-size: 17px; color: var(--gx-dust); }

.gx-link {
  color: var(--gx-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--gx-fast) var(--gx-ease);
}
.gx-link:hover { color: var(--gx-gold); }

.gx-rule {
  height: 1px;
  border: 0;
  margin: 32px 0;
  background: linear-gradient(90deg, rgba(34, 211, 238, .5), rgba(108, 76, 241, .22), transparent);
}

.gx-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- 5. 布局工具 ---------- */
.gx-shell {
  width: min(var(--gx-shell-max), 100% - 48px);
  margin-inline: auto;
}

.gx-section {
  position: relative;
  padding: clamp(48px, 7vw, 96px) 0;
}

.gx-stack { display: grid; gap: 16px; align-content: start; }
.gx-cluster { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }

.gx-grid { display: grid; gap: var(--gx-gap); }
.gx-grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.gx-grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); }
.gx-grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr)); }

/* ---------- 6. 按钮 ---------- */
.gx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: var(--gx-radius-pill);
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: .03em;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--gx-fast) var(--gx-ease),
              border-color var(--gx-fast) var(--gx-ease),
              color var(--gx-fast) var(--gx-ease),
              box-shadow var(--gx-fast) var(--gx-ease),
              transform var(--gx-fast) var(--gx-ease);
}

.gx-btn--gold {
  background: linear-gradient(135deg, #F5B942, #E09A1F);
  color: #1A1103;
  border-color: rgba(245, 185, 66, .9);
}
.gx-btn--gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(245, 185, 66, .26);
}

.gx-btn--cyan {
  background: linear-gradient(135deg, rgba(34, 211, 238, .22), rgba(108, 76, 241, .26));
  color: var(--gx-star);
  border-color: var(--gx-line-strong);
}
.gx-btn--cyan:hover {
  transform: translateY(-2px);
  border-color: var(--gx-gold);
  box-shadow: 0 10px 26px rgba(34, 211, 238, .18);
}

.gx-btn--ghost {
  background: rgba(16, 26, 60, .6);
  color: var(--gx-star);
  border-color: var(--gx-line-strong);
}
.gx-btn--ghost:hover {
  transform: translateY(-2px);
  border-color: var(--gx-gold);
  color: var(--gx-gold);
}

.gx-btn--sm { padding: 8px 14px; font-size: 13px; }

.gx-icon-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--gx-line-strong);
  border-radius: var(--gx-radius-pill);
  background: rgba(16, 26, 60, .72);
  color: var(--gx-star);
  font-family: var(--gx-font-mono);
  font-size: 13.5px;
  letter-spacing: .08em;
  text-decoration: none;
  cursor: pointer;
  transition: border-color var(--gx-fast) var(--gx-ease),
              color var(--gx-fast) var(--gx-ease),
              background var(--gx-fast) var(--gx-ease);
}
.gx-icon-btn:hover {
  border-color: var(--gx-gold);
  color: var(--gx-gold);
}

.gx-search__icon {
  position: relative;
  flex: none;
  width: 13px;
  height: 13px;
  border: 2px solid currentColor;
  border-radius: 50%;
}
.gx-search__icon::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -3px;
  width: 7px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transform: rotate(45deg);
}

.gx-copy {
  flex: none;
  padding: 4px 10px;
  border: 1px solid rgba(245, 185, 66, .55);
  border-radius: var(--gx-radius-pill);
  background: transparent;
  color: var(--gx-gold);
  font-family: var(--gx-font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  cursor: pointer;
  transition: background var(--gx-fast) var(--gx-ease),
              border-color var(--gx-fast) var(--gx-ease),
              color var(--gx-fast) var(--gx-ease);
}
.gx-copy:hover { background: rgba(245, 185, 66, .14); }
.gx-copy[data-copied="true"] {
  border-color: var(--gx-mint);
  color: var(--gx-mint);
  background: rgba(94, 234, 212, .1);
}

/* ---------- 7. 标签 / 胶囊 ---------- */
.gx-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border: 1px solid rgba(245, 185, 66, .6);
  border-radius: var(--gx-radius-pill);
  background: rgba(245, 185, 66, .08);
  color: var(--gx-star);
  font-family: var(--gx-font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  text-decoration: none;
}
.gx-tag--cyan {
  border-color: rgba(34, 211, 238, .55);
  background: rgba(34, 211, 238, .08);
  color: var(--gx-cyan);
}
.gx-tag--mint {
  border-color: rgba(94, 234, 212, .55);
  background: rgba(94, 234, 212, .08);
  color: var(--gx-mint);
}

.gx-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid rgba(34, 211, 238, .28);
  border-radius: var(--gx-radius-pill);
  background: rgba(16, 26, 60, .7);
  color: var(--gx-dust);
  font: inherit;
  font-size: 13.5px;
  cursor: pointer;
  transition: background var(--gx-fast) var(--gx-ease),
              border-color var(--gx-fast) var(--gx-ease),
              color var(--gx-fast) var(--gx-ease);
}
.gx-pill:hover { color: var(--gx-star); border-color: var(--gx-cyan); }
.gx-pill[aria-pressed="true"] {
  background: linear-gradient(140deg, rgba(108, 76, 241, .5), rgba(34, 211, 238, .2));
  border-color: rgba(245, 185, 66, .7);
  color: var(--gx-star);
}
.gx-pill__count {
  font-family: var(--gx-font-mono);
  font-size: 11px;
  opacity: .85;
}

/* ---------- 8. 卡片与图片容器 ---------- */
.gx-card {
  position: relative;
  padding: clamp(18px, 2vw, 26px);
  border: 1px solid var(--gx-line);
  border-radius: var(--gx-radius-l);
  background: linear-gradient(160deg, var(--gx-galaxy), rgba(16, 26, 60, .7));
  transition: transform var(--gx-fast) var(--gx-ease),
              background var(--gx-fast) var(--gx-ease),
              border-color var(--gx-fast) var(--gx-ease),
              box-shadow var(--gx-fast) var(--gx-ease);
}
.gx-card:hover {
  transform: translateY(-4px);
  background: linear-gradient(160deg, var(--gx-orbit), rgba(30, 46, 99, .72));
  border-color: rgba(245, 185, 66, .55);
  box-shadow: 0 18px 40px rgba(2, 4, 14, .55);
}
.gx-card--nebula {
  background: linear-gradient(160deg, rgba(36, 20, 84, .92), rgba(16, 26, 60, .75));
}
.gx-card--focus {
  background:
    radial-gradient(120% 130% at 10% 0%, rgba(108, 76, 241, .45), rgba(6, 11, 31, .92) 70%),
    linear-gradient(160deg, var(--gx-galaxy), rgba(6, 11, 31, .9));
  border-color: rgba(34, 211, 238, .3);
}

.gx-figure {
  position: relative;
  display: block;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--gx-line);
  border-radius: var(--gx-radius-l);
  background:
    radial-gradient(120% 120% at 22% 0%, rgba(108, 76, 241, .42), rgba(6, 11, 31, .92) 72%),
    var(--gx-galaxy);
  isolation: isolate;
}
.gx-figure > img,
.gx-figure > svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gx-figure--16x9 { aspect-ratio: 16 / 9; }
.gx-figure--4x3 { aspect-ratio: 4 / 3; }
.gx-figure--1x1 { aspect-ratio: 1 / 1; }
.gx-figure--tall { aspect-ratio: 3 / 4; }

.gx-figure__orbit {
  position: absolute;
  inset: 12%;
  border: 1px solid rgba(34, 211, 238, .32);
  border-radius: 50%;
  pointer-events: none;
}
.gx-figure__orbit::after {
  content: "";
  position: absolute;
  inset: 18%;
  border: 1px dashed rgba(245, 185, 66, .26);
  border-radius: 50%;
}

.gx-figure__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 16px 18px;
  color: var(--gx-star);
  font-size: 13.5px;
  background: linear-gradient(0deg, rgba(6, 11, 31, .92), transparent);
}

/* ---------- 9. 面包屑 ---------- */
.gx-breadcrumb { margin: 0 0 20px; }
.gx-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  list-style: none;
  font-family: var(--gx-font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--gx-dust);
}
.gx-breadcrumb__list > li { display: inline-flex; align-items: center; gap: 10px; }
.gx-breadcrumb__list > li + li::before {
  content: "/";
  color: rgba(147, 160, 200, .5);
}
.gx-breadcrumb__link {
  color: var(--gx-dust);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--gx-fast) var(--gx-ease),
              border-color var(--gx-fast) var(--gx-ease);
}
.gx-breadcrumb__link:hover { color: var(--gx-cyan); border-color: var(--gx-cyan); }
.gx-breadcrumb__current { color: var(--gx-star); }

/* ---------- 10. 跳转链接 ---------- */
.gx-skip {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 0 0 var(--gx-radius-s) var(--gx-radius-s);
  background: var(--gx-gold);
  color: #1A1103;
  font-weight: 700;
  text-decoration: none;
  transition: top var(--gx-fast) var(--gx-ease);
}
.gx-skip:focus { top: 0; }

/* ---------- 11. 头部 ---------- */
.gx-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: linear-gradient(180deg, rgba(6, 11, 31, .95), rgba(6, 11, 31, .74));
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--gx-line);
  transition: background var(--gx-base) var(--gx-ease),
              box-shadow var(--gx-base) var(--gx-ease);
}
.gx-header[data-compact="true"] {
  background: rgba(6, 11, 31, .94);
  box-shadow: 0 14px 42px rgba(2, 4, 14, .7);
}

.gx-header__bar {
  width: min(var(--gx-shell-max), 100% - 48px);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 0;
  transition: padding var(--gx-base) var(--gx-ease);
}
.gx-header[data-compact="true"] .gx-header__bar { padding: 8px 0; }

.gx-header__left {
  display: flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
}

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

/* 品牌 */
.gx-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  min-width: 0;
}
.gx-brand__mark {
  position: relative;
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, #E8ECFF 0 3px, transparent 4px),
    conic-gradient(from 210deg, #6C4CF1, #22D3EE 38%, #241454 74%, #6C4CF1);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, .5), 0 0 18px rgba(108, 76, 241, .55);
}
.gx-brand__mark::after {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px solid rgba(232, 236, 255, .5);
  border-radius: 50%;
}
.gx-brand__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.gx-brand__name {
  font-family: var(--gx-font-head);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.3;
  letter-spacing: .06em;
  color: var(--gx-star);
  white-space: nowrap;
}
.gx-brand__meta {
  font-family: var(--gx-font-mono);
  font-size: 10.5px;
  line-height: 1.4;
  letter-spacing: .24em;
  color: var(--gx-cyan);
  white-space: nowrap;
}
.gx-brand__tag {
  padding-left: 14px;
  border-left: 1px solid rgba(34, 211, 238, .24);
  font-family: var(--gx-font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  color: var(--gx-dust);
  white-space: nowrap;
}
.gx-header[data-compact="true"] .gx-brand__tag { opacity: .7; }

/* 导航 */
.gx-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}
.gx-nav__list {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}
.gx-nav__item { list-style: none; }
.gx-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: var(--gx-radius-pill);
  color: var(--gx-dust);
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: .02em;
  text-decoration: none;
  transition: color var(--gx-fast) var(--gx-ease),
              background var(--gx-fast) var(--gx-ease),
              border-color var(--gx-fast) var(--gx-ease);
}
.gx-nav__link:hover {
  color: var(--gx-star);
  background: var(--gx-orbit);
  border-color: var(--gx-line-strong);
}
.gx-nav__link[aria-current="page"] {
  color: var(--gx-star);
  background: rgba(108, 76, 241, .24);
  border-color: rgba(245, 185, 66, .6);
}
.gx-nav__link[aria-current="page"]::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gx-gold);
  box-shadow: 0 0 10px var(--gx-gold);
}

.gx-nav__tail {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* 汉堡按钮 */
.gx-burger {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border: 1px solid var(--gx-line-strong);
  border-radius: var(--gx-radius-pill);
  background: rgba(16, 26, 60, .85);
  color: var(--gx-star);
  font-family: var(--gx-font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  cursor: pointer;
}
.gx-burger__lines {
  position: relative;
  display: block;
  width: 18px;
  height: 12px;
}
.gx-burger__lines::before,
.gx-burger__lines::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--gx-cyan);
  transition: transform var(--gx-fast) var(--gx-ease), top var(--gx-fast) var(--gx-ease);
}
.gx-burger__lines::before { top: 0; }
.gx-burger__lines::after { top: 10px; }
.gx-burger[aria-expanded="true"] { border-color: rgba(245, 185, 66, .7); }
.gx-burger[aria-expanded="true"] .gx-burger__lines::before { top: 5px; transform: rotate(45deg); }
.gx-burger[aria-expanded="true"] .gx-burger__lines::after { top: 5px; transform: rotate(-45deg); }

/* 阅读进度光带 */
.gx-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  background: rgba(30, 46, 99, .6);
}
.gx-progress__fill {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--gx-cyan), var(--gx-nebula) 55%, var(--gx-gold));
  transition: transform 90ms linear;
}

/* ---------- 12. 页脚 ---------- */
.gx-footer {
  position: relative;
  overflow: hidden;
  margin-top: clamp(48px, 7vw, 96px);
  padding: clamp(40px, 6vw, 72px) 0 28px;
  border-top: 1px solid var(--gx-line);
  background: linear-gradient(180deg, rgba(6, 11, 31, 0) 0%, rgba(16, 26, 60, .78) 30%, rgba(36, 20, 84, .62) 100%);
}
.gx-footer__aura {
  position: absolute;
  top: -160px;
  left: -12%;
  width: 60%;
  height: 420px;
  pointer-events: none;
  background: radial-gradient(closest-side, rgba(108, 76, 241, .34), transparent 72%);
}

.gx-footer__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.5fr .8fr .8fr .8fr 1.2fr;
  gap: 32px;
}

.gx-footer__brand { min-width: 0; }
.gx-brand--footer { margin-bottom: 4px; }
.gx-footer__note {
  margin: 14px 0 16px;
  max-width: 34ch;
  font-size: 14px;
  color: var(--gx-dust);
}

.gx-footer__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
}
.gx-chip {
  padding: 6px 12px;
  border: 1px solid var(--gx-line);
  border-radius: var(--gx-radius-pill);
  background: rgba(16, 26, 60, .62);
  font-family: var(--gx-font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--gx-dust);
}

.gx-footer__col { min-width: 0; }
.gx-footer__title {
  margin: 0 0 14px;
  font-family: var(--gx-font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--gx-star);
}
.gx-footer__links {
  display: grid;
  gap: 10px;
  list-style: none;
}
.gx-footer__links a {
  color: var(--gx-dust);
  font-size: 14.5px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--gx-fast) var(--gx-ease),
              border-color var(--gx-fast) var(--gx-ease);
}
.gx-footer__links a:hover { color: var(--gx-cyan); border-color: var(--gx-cyan); }

.gx-footer__contact { min-width: 0; }
.gx-contact-list {
  display: grid;
  gap: 12px;
  list-style: none;
}
.gx-contact-item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--gx-line);
  border-radius: var(--gx-radius-s);
  background: rgba(16, 26, 60, .62);
}
.gx-contact-item__label {
  flex: 0 0 100%;
  font-family: var(--gx-font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--gx-cyan);
}
.gx-contact-item__value {
  flex: 1 1 auto;
  min-width: 0;
  color: var(--gx-star);
  font-family: var(--gx-font-mono);
  font-size: 14px;
  letter-spacing: .02em;
  word-break: break-word;
}

.gx-footer__legal {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 28px;
  margin-top: clamp(28px, 4vw, 48px);
  padding-top: 20px;
  border-top: 1px solid rgba(34, 211, 238, .12);
}
.gx-footer__legal-item {
  margin: 0;
  font-size: 13px;
  color: var(--gx-dust);
}

/* 返回顶部 */
.gx-top {
  position: fixed;
  right: clamp(16px, 3vw, 32px);
  bottom: clamp(16px, 3vw, 32px);
  z-index: 70;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border: 1px solid var(--gx-line-strong);
  border-radius: var(--gx-radius-pill);
  background: rgba(16, 26, 60, .92);
  color: var(--gx-star);
  font-family: var(--gx-font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: opacity var(--gx-fast) var(--gx-ease),
              transform var(--gx-fast) var(--gx-ease),
              visibility var(--gx-fast) linear,
              border-color var(--gx-fast) var(--gx-ease),
              background var(--gx-fast) var(--gx-ease);
}
.gx-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.gx-top:hover { border-color: var(--gx-gold); background: var(--gx-orbit); }
.gx-top__icon {
  width: 11px;
  height: 11px;
  border-top: 2px solid currentColor;
  border-left: 2px solid currentColor;
  border-radius: 1px;
  transform: rotate(45deg);
}

/* ---------- 13. 焦点可见 ---------- */
:focus-visible {
  outline: 2px solid var(--gx-gold);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ---------- 14. 平板 / 移动 ---------- */
@media (max-width: 1023px) {
  .gx-header__bar {
    min-height: 64px;
    padding: 10px 0;
    gap: 12px;
  }
  .gx-header[data-compact="true"] .gx-header__bar { padding: 8px 0; }
  .gx-brand__tag { display: none; }
  .gx-burger { display: inline-flex; }

  .gx-nav {
    position: fixed;
    left: 12px;
    right: 12px;
    top: 78px;
    z-index: 88;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    max-height: calc(100dvh - 100px);
    overflow-y: auto;
    padding: 22px;
    border: 1px solid var(--gx-line-strong);
    border-radius: 26px;
    background: linear-gradient(165deg, rgba(36, 20, 84, .97), rgba(6, 11, 31, .99));
    box-shadow: 0 32px 80px rgba(2, 4, 14, .85);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity var(--gx-fast) var(--gx-ease),
                transform var(--gx-fast) var(--gx-ease),
                visibility var(--gx-fast) linear;
  }
  .gx-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .gx-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }
  .gx-nav__link {
    justify-content: space-between;
    padding: 13px 16px;
    border: 1px solid rgba(34, 211, 238, .14);
    border-radius: 16px;
    background: rgba(16, 26, 60, .5);
    font-size: 16px;
  }
  .gx-nav__link[aria-current="page"]::before { order: 2; }
  .gx-nav__tail {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .gx-nav__tail .gx-btn,
  .gx-nav__tail .gx-icon-btn {
    width: 100%;
    justify-content: center;
    padding: 12px 18px;
    font-size: 15px;
  }
  body[data-nav-open="true"] { overflow: hidden; }

  .gx-footer__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
  }
  .gx-footer__brand { grid-column: 1 / -1; }
  .gx-footer__contact { grid-column: 1 / -1; }
}

@media (max-width: 767px) {
  .gx-shell { width: calc(100% - 32px); }
  .gx-header__bar { width: calc(100% - 32px); }
  .gx-section { padding: 44px 0; }

  .gx-brand__name { font-size: 16px; }
  .gx-brand__mark { width: 30px; height: 30px; }
  .gx-nav { top: 72px; padding: 18px; border-radius: 22px; }

  .gx-footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
  .gx-footer__brand,
  .gx-footer__contact { grid-column: 1 / -1; }

  .gx-footer__legal { flex-direction: column; align-items: flex-start; gap: 8px; }
  .gx-top__label { display: none; }
  .gx-top { padding: 12px; border-radius: 50%; }
}

@media (max-width: 479px) {
  .gx-shell { width: calc(100% - 24px); }
  .gx-header__bar { width: calc(100% - 24px); }
  .gx-brand__meta { letter-spacing: .16em; }
  .gx-grid { gap: 16px; }
  .gx-card { border-radius: var(--gx-radius-m); }
  .gx-figure { border-radius: var(--gx-radius-m); }
}

@media (max-width: 360px) {
  .gx-brand__meta { display: none; }
  .gx-burger__label { display: none; }
}

/* ---------- 15. 减弱动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .gx-card:hover,
  .gx-btn:hover { transform: none; }
  .gx-top { transform: none; }
  .gx-progress__fill { transition: none; }
}