/* ============================================================
   水果666玩家 · 共享外壳样式 /assets/site.css
   夜市机台霓虹 × 工程蓝图网格
   ============================================================ */

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

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

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--f6-ink);
  color: var(--f6-white);
  font-family: var(--f6-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    radial-gradient(58vw 48vh at 84% -6%, rgba(255, 122, 26, .12), transparent 70%),
    radial-gradient(52vw 44vh at 4% 6%, rgba(139, 92, 246, .14), transparent 72%),
    radial-gradient(60vw 42vh at 52% 108%, rgba(47, 211, 255, .09), transparent 74%),
    linear-gradient(to right, rgba(36, 48, 79, .42) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(36, 48, 79, .42) 1px, transparent 1px);
  background-size: auto, auto, auto, 72px 72px, 72px 72px;
  background-position: 0 0, 0 0, 0 0, -1px -1px, -1px -1px;
}

img, svg, picture, video { max-width: 100%; display: block; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6, p, figure, blockquote { margin: 0; }
button { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }

:root {
  --f6-ink: #0A0D1C;
  --f6-panel: #121A33;
  --f6-line: #24304F;
  --f6-white: #F6F7FF;
  --f6-mist: #A8B1CF;
  --f6-orange: #FF7A1A;
  --f6-lime: #B8FF3D;
  --f6-cherry: #FF3D5F;
  --f6-grape: #8B5CF6;
  --f6-blue: #2FD3FF;

  --f6-rail: 112px;
  --f6-gutter: clamp(20px, 4vw, 64px);
  --f6-topbar: 64px;

  --f6-r-lg: 26px;
  --f6-r-md: 18px;
  --f6-r-sm: 12px;
  --f6-pill: 999px;

  --f6-display: "站酷庆科黄油体", "ZCOOL KuaiLe", "阿里巴巴普惠体 Heavy", "Alibaba PuHuiTi", "PingFang SC", "Microsoft YaHei", sans-serif;
  --f6-body: "思源黑体", "Source Han Sans SC", "Noto Sans CJK SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --f6-mono: "JetBrains Mono", "IBM Plex Mono", "等距更纱黑体", "Sarasa Mono SC", "SFMono-Regular", Consolas, monospace;

  --f6-ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 焦点与可访问性 ---------- */
:focus-visible {
  outline: 3px solid var(--f6-blue);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ============================================================
   头部
   ============================================================ */
.fs-header {
  position: relative;
  z-index: 60;
}

.fs-skip {
  position: fixed;
  top: 10px;
  left: 50%;
  z-index: 200;
  transform: translate(-50%, -190%);
  padding: 13px 22px;
  border-radius: var(--f6-pill);
  background: var(--f6-lime);
  color: #101707;
  font-family: var(--f6-body);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  transition: transform .2s var(--f6-ease);
}
.fs-skip:focus { transform: translate(-50%, 0); }

/* ---------- 滚动进度 ---------- */
.fs-progress {
  position: fixed;
  z-index: 75;
  pointer-events: none;
  background: rgba(36, 48, 79, .55);
}

@media (min-width: 992px) {
  .fs-progress {
    left: calc(var(--f6-rail) - 3px);
    top: 0;
    bottom: 0;
    width: 3px;
  }
  .fs-progress__bar {
    display: block;
    width: 100%;
    height: calc(var(--p, 0) * 1%);
    border-radius: 3px;
    background: linear-gradient(180deg, var(--f6-lime), var(--f6-blue) 55%, var(--f6-grape));
    transition: height .09s linear;
  }
}

@media (max-width: 991px) {
  .fs-progress {
    left: 0;
    right: 0;
    top: var(--f6-topbar);
    height: 3px;
  }
  .fs-progress__bar {
    display: block;
    height: 100%;
    width: calc(var(--p, 0) * 1%);
    background: linear-gradient(90deg, var(--f6-orange), var(--f6-lime));
    transition: width .09s linear;
  }
}

/* ---------- 移动顶栏 ---------- */
.fs-topbar { display: none; }

.fs-topbar__brand {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-right: auto;
}

.fs-topbar__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(140deg, var(--f6-orange), var(--f6-cherry));
  color: #180B03;
  font-family: var(--f6-display);
  font-size: 16px;
  font-weight: 800;
  line-height: 1;
  box-shadow: 0 6px 18px -8px rgba(255, 122, 26, .9);
}

.fs-topbar__name {
  font-family: var(--f6-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1;
  white-space: nowrap;
}

.fs-topbar__status {
  margin-right: 4px;
}

/* ---------- 状态胶囊与小圆点 ---------- */
.fs-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--f6-mono);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: .04em;
  color: var(--f6-lime);
  white-space: nowrap;
}

.fs-status--rail {
  font-size: 10px;
  line-height: 1.35;
  text-align: center;
  white-space: normal;
  color: rgba(184, 255, 61, .82);
}

.fs-dot {
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--f6-lime);
  box-shadow: 0 0 0 3px rgba(184, 255, 61, .18);
  animation: fs-pulse 3.6s ease-in-out infinite;
}

@keyframes fs-pulse {
  0%, 100% { box-shadow: 0 0 0 3px rgba(184, 255, 61, .18); }
  50% { box-shadow: 0 0 0 5px rgba(184, 255, 61, .06); }
}

/* ---------- 菜单按钮 ---------- */
.fs-burger {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 14px;
  border: 1px solid var(--f6-line);
  border-radius: var(--f6-r-sm);
  background: rgba(18, 26, 51, .85);
  color: var(--f6-white);
  cursor: pointer;
  transition: border-color .18s var(--f6-ease), color .18s var(--f6-ease);
}
.fs-burger:hover { border-color: rgba(47, 211, 255, .55); color: var(--f6-blue); }

.fs-burger__box {
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 18px;
}
.fs-burger__box span {
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .22s var(--f6-ease), opacity .18s var(--f6-ease);
}

.fs-burger__text {
  font-family: var(--f6-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .06em;
  line-height: 1;
}

.fs-header[data-nav-open] .fs-burger__box span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.fs-header[data-nav-open] .fs-burger__box span:nth-child(2) { opacity: 0; }
.fs-header[data-nav-open] .fs-burger__box span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 侧边轨道 ---------- */
.fs-rail {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 70;
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: var(--f6-rail);
  padding: 22px 10px 18px;
  background: linear-gradient(180deg, rgba(18, 26, 51, .97), rgba(10, 13, 28, .99));
  border-right: 1px solid var(--f6-line);
  overflow-y: auto;
  scrollbar-width: none;
}
.fs-rail::-webkit-scrollbar { display: none; }

.fs-rail::after {
  content: "";
  position: absolute;
  top: 0;
  right: -1px;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, var(--f6-orange), var(--f6-cherry) 26%, var(--f6-grape) 52%, var(--f6-blue) 76%, var(--f6-lime));
  opacity: .55;
  pointer-events: none;
}

.fs-rail__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--f6-line);
}

.fs-rail__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 13px;
}

.fs-rail__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  padding: 3px;
  border-radius: 15px;
  background: conic-gradient(from 200deg, var(--f6-orange), var(--f6-cherry), var(--f6-grape), var(--f6-blue), var(--f6-lime), var(--f6-orange));
  box-shadow: 0 10px 26px -14px rgba(255, 61, 95, .9);
}
.fs-rail__mark span {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  border-radius: 12px;
  background: #0A0D1C;
  color: var(--f6-lime);
  font-family: var(--f6-display);
  font-size: 21px;
  font-weight: 800;
  line-height: 1;
}

.fs-rail__word {
  writing-mode: vertical-rl;
  text-orientation: upright;
  font-family: var(--f6-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .16em;
  line-height: 1.1;
  color: var(--f6-white);
}

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

.fs-rail__link {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 10px 4px;
  border-radius: 14px;
  color: var(--f6-mist);
  transition: color .18s var(--f6-ease), background .18s var(--f6-ease);
}
.fs-rail__link::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 50%;
  width: 2px;
  height: 0;
  border-radius: 2px;
  background: var(--f6-orange);
  transform: translateY(-50%);
  transition: height .18s var(--f6-ease);
}
.fs-rail__link:hover {
  color: var(--f6-white);
  background: rgba(255, 122, 26, .1);
}
.fs-rail__link:hover::before { height: 60%; }
.fs-rail__link:hover .fs-rail__idx { color: var(--f6-orange); }

.fs-rail__idx {
  font-family: var(--f6-mono);
  font-size: 10px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: .1em;
  color: rgba(168, 177, 207, .58);
  transition: color .18s var(--f6-ease);
}

.fs-rail__label {
  font-family: var(--f6-body);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: .02em;
  text-align: center;
}

.fs-rail__link[aria-current="page"] {
  background: var(--f6-lime);
  color: #101707;
}
.fs-rail__link[aria-current="page"]::before { height: 0; }
.fs-rail__link[aria-current="page"] .fs-rail__idx { color: rgba(16, 23, 7, .62); }

.fs-rail__foot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 11px;
  margin-top: auto;
  padding-top: 15px;
  border-top: 1px solid var(--f6-line);
}

.fs-rail__cta {
  width: 100%;
  justify-content: center;
  padding: 11px 6px;
  font-size: 12px;
}

/* ---------- 遮罩 ---------- */
.fs-scrim { display: none; }

/* ============================================================
   主内容容器
   ============================================================ */
#main-content {
  position: relative;
  z-index: 1;
  margin-left: var(--f6-rail);
  min-height: 60vh;
}

.fs-wrap {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: var(--f6-gutter);
}

.fs-section { padding-block: clamp(40px, 6vw, 84px); }

/* ============================================================
   通用排版与组件
   ============================================================ */
.fs-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--f6-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: .14em;
  color: var(--f6-blue);
  text-transform: uppercase;
}
.fs-eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
}

.fs-display {
  font-family: var(--f6-display);
  font-size: clamp(2.4rem, 6vw, 5.6rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -.01em;
  color: var(--f6-white);
  text-wrap: balance;
}

.fs-title {
  font-family: var(--f6-display);
  font-size: clamp(1.7rem, 3.4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.005em;
  color: var(--f6-white);
}

.fs-lead {
  max-width: 62ch;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  line-height: 1.75;
  color: var(--f6-mist);
}

.fs-mono {
  font-family: var(--f6-mono);
  font-size: .92em;
  font-weight: 500;
  letter-spacing: .04em;
  font-variant-numeric: tabular-nums;
}

.fs-rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: var(--f6-line);
}

.fs-panel {
  background:
    linear-gradient(160deg, rgba(18, 26, 51, .94), rgba(12, 17, 36, .94));
  border: 1px solid var(--f6-line);
  border-radius: var(--f6-r-lg);
  padding: clamp(20px, 3vw, 34px);
}

/* ---------- 按钮 ---------- */
.fs-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: var(--f6-pill);
  font-family: var(--f6-body);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .02em;
  text-align: center;
  cursor: pointer;
  transition: transform .18s var(--f6-ease), background .18s var(--f6-ease), color .18s var(--f6-ease), box-shadow .18s var(--f6-ease);
}

.fs-btn--primary {
  background: linear-gradient(115deg, var(--f6-orange), #FFB03A);
  color: #17100A;
  box-shadow: 0 12px 26px -14px rgba(255, 122, 26, .95);
}
.fs-btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px -14px rgba(255, 122, 26, 1);
}

.fs-btn--ghost {
  border-color: var(--f6-line);
  background: rgba(18, 26, 51, .6);
  color: var(--f6-white);
}
.fs-btn--ghost:hover {
  border-color: rgba(47, 211, 255, .55);
  color: var(--f6-blue);
}

/* ---------- 标签 ---------- */
.fs-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--f6-line);
  border-radius: var(--f6-pill);
  background: rgba(18, 26, 51, .8);
  color: var(--f6-mist);
  font-family: var(--f6-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: .04em;
  white-space: nowrap;
}

.fs-chip--lime {
  background: var(--f6-lime);
  border-color: var(--f6-lime);
  color: #101707;
}
.fs-chip--orange {
  background: var(--f6-orange);
  border-color: var(--f6-orange);
  color: #1A0C02;
}
.fs-chip--cherry {
  background: rgba(255, 61, 95, .1);
  border-color: rgba(255, 61, 95, .6);
  color: var(--f6-cherry);
}

/* ---------- 图片容器 ---------- */
.fs-media {
  position: relative;
  display: block;
  overflow: hidden;
  border: 1px solid var(--f6-line);
  border-radius: var(--f6-r-lg);
  aspect-ratio: 16 / 10;
  background:
    linear-gradient(150deg, rgba(47, 211, 255, .16), transparent 56%),
    linear-gradient(320deg, rgba(255, 61, 95, .16), transparent 62%),
    #101830;
}
.fs-media > img,
.fs-media > picture,
.fs-media > picture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.fs-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 52%, rgba(10, 13, 28, .58));
}

.fs-media--wide { aspect-ratio: 21 / 9; }
.fs-media--square { aspect-ratio: 1 / 1; }
.fs-media--tall { aspect-ratio: 3 / 4; }

.fs-media__tag {
  position: absolute;
  left: 16px;
  bottom: 16px;
  z-index: 1;
}

/* ---------- 面包屑 ---------- */
.fs-crumbs {
  padding-block: 20px;
  font-family: var(--f6-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: .04em;
  color: var(--f6-mist);
}
.fs-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.fs-crumbs li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: var(--f6-line);
}
.fs-crumbs a {
  color: var(--f6-mist);
  transition: color .18s var(--f6-ease);
}
.fs-crumbs a:hover { color: var(--f6-blue); }
.fs-crumbs [aria-current="page"] { color: var(--f6-white); }

/* ---------- 长文正文 ---------- */
.fs-prose {
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--f6-white);
}
.fs-prose p + p { margin-top: 1em; }
.fs-prose h2,
.fs-prose h3 { margin-top: 1.8em; margin-bottom: .6em; }
.fs-prose ul,
.fs-prose ol {
  margin-top: .8em;
  padding-left: 1.3em;
  list-style: disc;
}
.fs-prose ol { list-style: decimal; }
.fs-prose li + li { margin-top: .4em; }
.fs-prose a {
  color: var(--f6-blue);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.fs-prose a:hover { color: var(--f6-lime); }
.fs-prose strong { color: var(--f6-white); }
.fs-prose code {
  padding: 2px 6px;
  border-radius: 6px;
  background: var(--f6-panel);
  font-family: var(--f6-mono);
  font-size: .88em;
  color: var(--f6-lime);
}

/* ---------- 滚动揭示 ---------- */
html.fs-js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .5s var(--f6-ease), transform .5s var(--f6-ease);
}
html.fs-js [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ============================================================
   页脚
   ============================================================ */
.fs-footer {
  position: relative;
  z-index: 1;
  margin-left: var(--f6-rail);
  overflow: hidden;
  background: linear-gradient(180deg, #0C1122 0%, #080B17 100%);
  border-top: 1px solid var(--f6-line);
}

.fs-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--f6-orange), var(--f6-cherry) 28%, var(--f6-grape) 54%, var(--f6-blue) 76%, var(--f6-lime));
  opacity: .9;
}

.fs-footer::after {
  content: "";
  position: absolute;
  right: -90px;
  top: -70px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  pointer-events: none;
  background: conic-gradient(from 0deg, transparent 0 68%, rgba(139, 92, 246, .2) 76%, rgba(47, 211, 255, .12) 84%, transparent 92%);
}

.fs-footer__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: clamp(26px, 4vw, 64px);
  max-width: 1280px;
  margin-inline: auto;
  padding: clamp(38px, 5vw, 66px) var(--f6-gutter) 0;
}

.fs-footer__lead { display: block; }

.fs-footer__brand {
  display: inline-flex;
  align-items: baseline;
  font-family: var(--f6-display);
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--f6-white);
}

.fs-footer__six {
  color: var(--f6-orange);
  text-shadow: 0 0 26px rgba(255, 122, 26, .55);
}

.fs-footer__tagline {
  margin-top: 15px;
  max-width: 34ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--f6-mist);
}

.fs-footer__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  margin-top: 20px;
}

.fs-footer__hours {
  font-family: var(--f6-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .04em;
  color: rgba(168, 177, 207, .8);
}

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

.fs-fcol__title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 15px;
  font-family: var(--f6-mono);
  font-size: 11px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: .16em;
  color: var(--f6-blue);
}
.fs-fcol__title::before {
  content: "";
  width: 14px;
  height: 1px;
  background: currentColor;
}

.fs-fcol__list {
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.fs-fcol__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14.5px;
  color: var(--f6-mist);
  transition: color .18s var(--f6-ease), transform .18s var(--f6-ease);
}
.fs-fcol__link::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--f6-line);
  transition: background .18s var(--f6-ease);
}
.fs-fcol__link:hover {
  color: var(--f6-lime);
  transform: translateX(3px);
}
.fs-fcol__link:hover::before { background: var(--f6-lime); }

.fs-footer__contact {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 30px;
  max-width: 1280px;
  margin: clamp(30px, 4vw, 46px) auto 0;
  padding: 20px var(--f6-gutter);
  border-top: 1px solid var(--f6-line);
  border-bottom: 1px solid var(--f6-line);
  font-family: var(--f6-mono);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: .02em;
  color: var(--f6-mist);
}

.fs-footer__addr {
  color: rgba(168, 177, 207, .8);
}

.fs-copy {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 4px 0;
  border: 0;
  border-bottom: 1px dashed var(--f6-line);
  background: none;
  color: var(--f6-white);
  font-family: var(--f6-mono);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: color .18s var(--f6-ease), border-color .18s var(--f6-ease);
}
.fs-copy:hover {
  color: var(--f6-blue);
  border-color: var(--f6-blue);
}

.fs-copy__text { white-space: nowrap; }

.fs-copy__hint {
  padding: 2px 7px;
  border-radius: var(--f6-pill);
  background: rgba(36, 48, 79, .9);
  font-size: 10px;
  letter-spacing: .08em;
  color: var(--f6-mist);
  transition: background .18s var(--f6-ease), color .18s var(--f6-ease);
}
.fs-copy[data-copied] .fs-copy__hint {
  background: var(--f6-lime);
  color: #101707;
}

.fs-footer__base {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  max-width: 1280px;
  margin-inline: auto;
  padding: 18px var(--f6-gutter) 28px;
  font-family: var(--f6-mono);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: .03em;
  color: rgba(168, 177, 207, .75);
}

.fs-footer__copy { margin: 0; }

.fs-footer__icp { margin: 0; color: var(--f6-mist); }

.fs-top-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 15px;
  border: 1px solid var(--f6-line);
  border-radius: var(--f6-pill);
  background: rgba(18, 26, 51, .75);
  color: var(--f6-mist);
  font-family: var(--f6-mono);
  font-size: 11px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: .05em;
  cursor: pointer;
  transition: color .18s var(--f6-ease), border-color .18s var(--f6-ease), transform .18s var(--f6-ease);
}
.fs-top-btn::before { content: "\2191"; }
.fs-top-btn:hover {
  color: var(--f6-lime);
  border-color: rgba(184, 255, 61, .5);
  transform: translateY(-1px);
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 991px) {
  :root { --f6-rail: 0px; }

  .fs-topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 95;
    display: flex;
    align-items: center;
    gap: 12px;
    height: var(--f6-topbar);
    padding: 0 16px;
    background: rgba(10, 13, 28, .93);
    border-bottom: 1px solid var(--f6-line);
    backdrop-filter: blur(10px);
  }

  #main-content { padding-top: var(--f6-topbar); }

  .fs-rail {
    top: var(--f6-topbar);
    z-index: 90;
    width: min(324px, 86vw);
    padding: 22px 18px 24px;
    border-right: 1px solid var(--f6-line);
    transform: translateX(-102%);
    transition: transform .26s var(--f6-ease);
    box-shadow: 40px 0 80px -40px rgba(0, 0, 0, .95);
  }
  .fs-rail[data-open] { transform: translateX(0); }
  .fs-rail::after { opacity: .8; }

  .fs-rail__head {
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    padding-bottom: 16px;
  }

  .fs-rail__brand {
    flex-direction: row;
    align-items: center;
    gap: 12px;
  }

  .fs-rail__mark { width: 42px; height: 42px; }
  .fs-rail__mark span { font-size: 19px; border-radius: 10px; }

  .fs-rail__word {
    writing-mode: horizontal-tb;
    text-orientation: mixed;
    font-size: 15px;
    letter-spacing: .02em;
  }

  .fs-rail__list { gap: 2px; margin-top: 10px; }

  .fs-rail__link {
    flex-direction: row;
    align-items: baseline;
    gap: 12px;
    padding: 14px 14px;
    border-radius: 14px;
    text-align: left;
  }
  .fs-rail__link::before { left: 4px; }
  .fs-rail__link:hover { background: rgba(255, 122, 26, .12); }
  .fs-rail__idx { font-size: 11px; }
  .fs-rail__label { font-size: 15px; text-align: left; }

  .fs-rail__foot {
    align-items: stretch;
    gap: 12px;
    margin-top: auto;
    padding-top: 18px;
  }
  .fs-rail__cta {
    width: 100%;
    padding: 14px 10px;
    font-size: 14px;
  }
  .fs-status--rail {
    font-size: 11px;
    text-align: center;
  }

  .fs-scrim {
    display: block;
    position: fixed;
    top: var(--f6-topbar);
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 85;
    background: rgba(5, 7, 16, .72);
    opacity: 0;
    visibility: hidden;
    transition: opacity .24s var(--f6-ease), visibility .24s var(--f6-ease);
  }
  .fs-header[data-nav-open] .fs-scrim {
    opacity: 1;
    visibility: visible;
  }

  .fs-footer { margin-left: 0; }

  .fs-footer__inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }
}

@media (max-width: 720px) {
  .fs-topbar__status { display: none; }
  .fs-footer__cols { gap: 22px; }
  .fs-footer__contact {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .fs-footer__base {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}

@media (max-width: 460px) {
  .fs-burger__text { display: none; }
  .fs-topbar__name { font-size: 14px; }
  .fs-footer__cols { grid-template-columns: minmax(0, 1fr); }
}

@media (min-width: 992px) and (max-height: 780px) {
  .fs-rail { gap: 10px; padding-top: 16px; padding-bottom: 14px; }
  .fs-rail__word { display: none; }
  .fs-rail__link { padding: 8px 4px; }
  .fs-rail__idx { font-size: 9px; }
  .fs-rail__label { font-size: 11px; }
  .fs-rail__foot { gap: 8px; padding-top: 12px; }
}

/* ============================================================
   减弱动效
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  html.fs-js [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
  .fs-btn--primary:hover,
  .fs-top-btn:hover,
  .fs-fcol__link:hover { transform: none !important; }
}