/* ============================================================
   超圣游艺 · 全站共享样式  /assets/site.css
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

:root {
  --cs-deep: #061426;
  --cs-night: #0A1F3A;
  --cs-cyan: #00E5D4;
  --cs-coral: #FF6B4A;
  --cs-gold: #FFC857;
  --cs-fog: #F2F7FF;
  --cs-slate: #7D93AB;
  --cs-teal: #0B3B3A;
  --cs-violet: #6C5CE7;

  --cs-ink: #d5e3f2;
  --cs-line: rgba(125, 147, 171, .22);
  --cs-cyan-line: rgba(0, 229, 212, .18);

  --cs-shell: 1180px;
  --cs-gutter: clamp(1.05rem, 4vw, 2.75rem);
  --cs-radius: 20px;
  --cs-radius-lg: 26px;

  --cs-sans: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --cs-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--cs-deep);
  color: var(--cs-ink);
  font-family: var(--cs-sans);
  font-size: 1rem;
  line-height: 1.7;
  letter-spacing: .01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 12% -6%, rgba(0, 229, 212, .16), transparent 44%),
    radial-gradient(circle at 92% 6%, rgba(108, 92, 231, .18), transparent 42%),
    radial-gradient(circle at 68% 112%, rgba(11, 59, 58, .9), transparent 58%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .55;
  background-image: radial-gradient(rgba(242, 247, 255, .05) 1px, transparent 1px);
  background-size: 3px 3px;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-family: var(--cs-sans);
  font-weight: 800;
  letter-spacing: -.022em;
  line-height: 1.14;
  color: var(--cs-fog);
  text-wrap: balance;
}
h1 { font-size: clamp(1.9rem, 5vw, 3.1rem); }
h2 { font-size: clamp(1.4rem, 2.8vw, 2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.32rem); }

p { margin: 0; }

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

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

a {
  color: var(--cs-cyan);
  text-decoration: none;
  text-underline-offset: .22em;
}
a:hover { text-decoration: underline; }

button { font: inherit; color: inherit; }

[hidden] { display: none !important; }

:focus-visible {
  outline: 2px solid var(--cs-cyan);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 布局外壳 ---------- */
.cs-shell {
  width: 100%;
  max-width: var(--cs-shell);
  margin-inline: auto;
  padding-inline: var(--cs-gutter);
}

.cs-section { padding-block: clamp(1.9rem, 4.5vw, 3.2rem); }

.cs-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: .8rem 1.5rem;
  margin-bottom: clamp(1.1rem, 2.4vw, 1.8rem);
}

.cs-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--cs-mono);
  font-size: .7rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cs-cyan);
}
.cs-eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--cs-cyan);
  box-shadow: 0 0 12px rgba(0, 229, 212, .9);
}

/* ---------- 按钮 ---------- */
.cs-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  padding: .62rem 1.05rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--cs-sans);
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.cs-btn:hover { text-decoration: none; transform: translateY(-1px); }
.cs-btn:active { transform: translateY(0); }

.cs-btn--solid {
  background: linear-gradient(135deg, var(--cs-coral), #ff8a5c);
  color: #200a04;
  box-shadow: 0 12px 30px -16px rgba(255, 107, 74, .95), inset 0 0 0 1px rgba(255, 190, 160, .35);
}
.cs-btn--solid:hover { box-shadow: 0 18px 36px -14px rgba(255, 107, 74, 1); }

.cs-btn--ghost {
  background: rgba(0, 229, 212, .06);
  border-color: rgba(0, 229, 212, .4);
  color: var(--cs-cyan);
}
.cs-btn--ghost:hover {
  background: rgba(0, 229, 212, .14);
  border-color: var(--cs-cyan);
}

.cs-btn--quiet {
  background: transparent;
  border-color: rgba(125, 147, 171, .35);
  color: #c7d7e8;
}
.cs-btn--quiet:hover { border-color: rgba(0, 229, 212, .55); color: var(--cs-cyan); }

/* ---------- 标签 ---------- */
.cs-tag {
  display: inline-flex;
  align-items: center;
  gap: .32rem;
  padding: .22rem .6rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 229, 212, .35);
  background: rgba(0, 229, 212, .08);
  color: var(--cs-cyan);
  font-size: .73rem;
  font-weight: 600;
  letter-spacing: .05em;
  line-height: 1.6;
}
.cs-tag--coral {
  border-color: rgba(255, 107, 74, .45);
  background: rgba(255, 107, 74, .12);
  color: #ffb4a1;
}
.cs-tag--gold {
  border-color: rgba(255, 200, 87, .45);
  background: rgba(255, 200, 87, .12);
  color: var(--cs-gold);
}
.cs-tag--slate {
  border-color: rgba(125, 147, 171, .4);
  background: rgba(125, 147, 171, .1);
  color: #b9cbe0;
}

/* ---------- 跳转链接 ---------- */
.cs-skip {
  position: fixed;
  top: .75rem;
  left: .75rem;
  z-index: 300;
  padding: .65rem 1.05rem;
  border-radius: 999px;
  background: var(--cs-cyan);
  color: #04222a;
  font-size: .9rem;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-190%);
  transition: transform .18s ease;
}
.cs-skip:focus,
.cs-skip:focus-visible {
  transform: translateY(0);
  text-decoration: none;
  outline: 2px solid var(--cs-fog);
  outline-offset: 2px;
}

/* ---------- 页头 ---------- */
.cs-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 20, 38, .84);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  backdrop-filter: blur(16px) saturate(150%);
  border-bottom: 1px solid var(--cs-cyan-line);
  transition: background .28s ease, box-shadow .28s ease;
}
.cs-header[data-stuck] {
  background: rgba(5, 17, 32, .96);
  box-shadow: 0 22px 46px -34px rgba(0, 0, 0, .95);
}

.cs-header__inner {
  display: flex;
  align-items: center;
  gap: clamp(.55rem, 1.6vw, 1.4rem);
  min-height: 68px;
  padding-block: .6rem;
}

.cs-brand {
  display: inline-flex;
  align-items: center;
  gap: .68rem;
  flex: 0 0 auto;
  color: var(--cs-fog);
  text-decoration: none;
}
.cs-brand:hover { text-decoration: none; }

.cs-brand__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  border-radius: 12px;
  background: linear-gradient(150deg, #0d2d4e, #08192c);
  box-shadow: inset 0 0 0 1px rgba(0, 229, 212, .55), 0 0 24px -8px rgba(0, 229, 212, .9);
}
.cs-brand__mark::before {
  content: "";
  width: 12px;
  height: 12px;
  border: 2px solid var(--cs-cyan);
  border-radius: 2px;
  transform: rotate(45deg);
  box-shadow: 0 0 10px rgba(0, 229, 212, .7);
}
.cs-brand__mark::after {
  content: "";
  position: absolute;
  right: 8px;
  bottom: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cs-coral);
  box-shadow: 0 0 10px var(--cs-coral);
}

.cs-brand__text { display: block; line-height: 1.15; }
.cs-brand__name {
  display: block;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: .04em;
}
.cs-brand__sub {
  display: block;
  margin-top: .18rem;
  font-size: .6rem;
  letter-spacing: .18em;
  color: var(--cs-slate);
}

.cs-status {
  display: inline-flex;
  align-items: center;
  gap: .42rem;
  flex: 0 0 auto;
  padding: .28rem .62rem;
  border: 1px solid rgba(0, 229, 212, .28);
  border-radius: 999px;
  background: rgba(0, 229, 212, .07);
  color: var(--cs-cyan);
  font-size: .72rem;
  letter-spacing: .08em;
  white-space: nowrap;
}
.cs-status__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cs-cyan);
  box-shadow: 0 0 10px var(--cs-cyan);
  animation: cs-beacon 2.8s ease-in-out infinite;
}
@keyframes cs-beacon {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .35; transform: scale(.72); }
}

.cs-nav { margin-left: auto; }
.cs-nav__list { display: flex; align-items: center; gap: .12rem; }
.cs-nav__list li { display: flex; }
.cs-nav__list a {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: .34rem;
  padding: .5rem .62rem;
  border-radius: 10px;
  color: #b9cbe0;
  font-size: .93rem;
  font-weight: 600;
  text-decoration: none;
  transition: color .2s ease, background .2s ease;
}
.cs-nav__idx {
  font-family: var(--cs-mono);
  font-size: .64rem;
  letter-spacing: .06em;
  color: var(--cs-slate);
  transition: color .2s ease;
}
.cs-nav__label { white-space: nowrap; }
.cs-nav__list a:hover {
  color: var(--cs-fog);
  background: rgba(0, 229, 212, .08);
  text-decoration: none;
}
.cs-nav__list a:hover .cs-nav__idx { color: var(--cs-cyan); }
.cs-nav__list a[aria-current="page"] {
  color: var(--cs-fog);
  background: linear-gradient(180deg, rgba(0, 229, 212, .16), rgba(0, 229, 212, .03));
  box-shadow: inset 0 0 0 1px rgba(0, 229, 212, .3);
}
.cs-nav__list a[aria-current="page"] .cs-nav__idx { color: var(--cs-cyan); }
.cs-nav__list a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: .62rem;
  right: .62rem;
  bottom: -1px;
  height: 2px;
  border-radius: 2px;
  background: var(--cs-cyan);
  box-shadow: 0 0 12px rgba(0, 229, 212, .95);
}

.cs-nav__foot { display: none; }

.cs-header__cta {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-left: .35rem;
  flex: 0 0 auto;
}

.cs-navtoggle {
  display: none;
  align-items: center;
  gap: .5rem;
  margin-left: auto;
  padding: .5rem .8rem;
  border: 1px solid rgba(0, 229, 212, .35);
  border-radius: 12px;
  background: rgba(10, 31, 58, .7);
  color: var(--cs-fog);
  font-size: .86rem;
  font-weight: 700;
  cursor: pointer;
}
.cs-navtoggle:hover { border-color: var(--cs-cyan); color: var(--cs-cyan); }
.cs-navtoggle__icon { display: grid; gap: 4px; width: 16px; flex: 0 0 auto; }
.cs-navtoggle__icon span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .22s ease, opacity .22s ease;
}
.cs-navtoggle__text { white-space: nowrap; }
.cs-header[data-open] .cs-navtoggle__icon span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.cs-header[data-open] .cs-navtoggle__icon span:nth-child(2) { opacity: 0; }
.cs-header[data-open] .cs-navtoggle__icon span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.cs-header__rail {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}
.cs-header__progress {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cs-cyan), var(--cs-violet) 55%, var(--cs-coral));
  box-shadow: 0 0 12px rgba(0, 229, 212, .85);
}

@media (max-width: 1199px) {
  .cs-status { display: none; }
}

@media (max-width: 959px) {
  .cs-navtoggle { display: inline-flex; }
  .cs-header__cta { display: none; }
  .cs-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    margin-left: 0;
    max-height: calc(100vh - 68px);
    overflow-y: auto;
    padding: .8rem var(--cs-gutter) 1.15rem;
    background: linear-gradient(180deg, rgba(8, 25, 46, .99), rgba(6, 20, 38, .99));
    border-bottom: 1px solid rgba(0, 229, 212, .24);
    box-shadow: 0 30px 56px -34px rgba(0, 0, 0, 1);
  }
  .cs-header[data-open] .cs-nav { display: block; animation: cs-nav-in .24s ease both; }
  .cs-nav__list { flex-direction: column; align-items: stretch; gap: .18rem; }
  .cs-nav__list li { display: block; }
  .cs-nav__list a {
    width: 100%;
    align-items: center;
    padding: .82rem .8rem;
    font-size: 1rem;
    border-radius: 12px;
  }
  .cs-nav__list a[aria-current="page"]::after {
    left: 0;
    right: auto;
    top: .7rem;
    bottom: .7rem;
    width: 3px;
    height: auto;
  }
  .cs-nav__foot {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    margin-top: .85rem;
    padding-top: .9rem;
    border-top: 1px dashed rgba(125, 147, 171, .28);
  }
  .cs-nav__foot .cs-btn { flex: 1 1 140px; }
}

@keyframes cs-nav-in {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 419px) {
  .cs-navtoggle__text { display: none; }
}

/* ---------- 页脚 ---------- */
.cs-footer {
  position: relative;
  margin-top: clamp(3rem, 7vw, 5.5rem);
  padding-top: calc(clamp(2.4rem, 6vw, 4rem) + 2.6vw);
  padding-bottom: clamp(1.4rem, 4vw, 2.2rem);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(0, 229, 212, .16), transparent 55%),
    linear-gradient(165deg, #071c33 0%, #072a31 52%, var(--cs-teal) 100%);
  clip-path: polygon(0 2.6vw, 100% 0, 100% 100%, 0 100%);
}

.cs-footer__inner {
  display: grid;
  grid-template-columns: 1.5fr .9fr .9fr 1.35fr;
  gap: clamp(1.4rem, 3vw, 2.6rem);
  align-items: start;
}

.cs-footer__brand { display: grid; gap: 1rem; justify-items: start; }
.cs-brand--footer .cs-brand__name { font-size: 1.12rem; }

.cs-footer__tagline {
  max-width: 22ch;
  font-size: .9rem;
  line-height: 1.7;
  color: #a9bed4;
}
.cs-footer__cta { margin-top: .2rem; }

.cs-footer__title {
  margin: 0 0 .85rem;
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--cs-cyan);
}
.cs-footer__col { display: block; }

.cs-footer__list { display: grid; gap: .55rem; }
.cs-footer__list a {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  color: #c2d4e7;
  font-size: .94rem;
  text-decoration: none;
  transition: color .2s ease;
}
.cs-footer__list a::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border: 1px solid rgba(0, 229, 212, .55);
  transform: rotate(45deg);
  transition: background .2s ease, box-shadow .2s ease;
}
.cs-footer__list a:hover { color: var(--cs-cyan); text-decoration: none; }
.cs-footer__list a:hover::before {
  background: var(--cs-cyan);
  box-shadow: 0 0 10px rgba(0, 229, 212, .9);
}

.cs-footer__meta { display: grid; gap: .7rem; }
.cs-footer__meta p { display: grid; gap: .15rem; font-size: .92rem; line-height: 1.6; }
.cs-footer__meta-key {
  font-family: var(--cs-mono);
  font-size: .66rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cs-slate);
}
.cs-footer__meta-val { color: #d9e7f5; word-break: break-word; }

.cs-footer__base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: .5rem 1.6rem;
  margin-top: clamp(1.6rem, 4vw, 2.6rem);
  padding-top: 1.05rem;
  border-top: 1px dashed rgba(0, 229, 212, .22);
  font-size: .8rem;
  color: var(--cs-slate);
}
.cs-footer__note { max-width: 62ch; line-height: 1.7; }
.cs-footer__copy { font-family: var(--cs-mono); letter-spacing: .04em; }

@media (max-width: 1023px) {
  .cs-footer__inner { grid-template-columns: 1fr 1fr; }
  .cs-footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 599px) {
  .cs-footer {
    clip-path: polygon(0 18px, 100% 0, 100% 100%, 0 100%);
    padding-top: calc(2.2rem + 18px);
  }
  .cs-footer__inner { grid-template-columns: 1fr; }
}

/* ---------- Bento 网格 ---------- */
.cs-bento {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(.85rem, 1.6vw, 1.25rem);
}

.cs-tile {
  position: relative;
  grid-column: span 12;
  padding: clamp(1.05rem, 2.2vw, 1.6rem);
  border: 1px solid rgba(0, 229, 212, .14);
  border-radius: var(--cs-radius);
  background: linear-gradient(160deg, rgba(10, 31, 58, .94), rgba(7, 24, 44, .9));
  overflow: hidden;
}
.cs-tile::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 64px;
  height: 1px;
  background: var(--cs-cyan);
  box-shadow: 0 0 14px rgba(0, 229, 212, .9);
  opacity: .75;
}
.cs-tile--lift { transition: transform .28s ease, border-color .28s ease, box-shadow .28s ease; }
.cs-tile--lift:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 229, 212, .42);
  box-shadow: 0 26px 48px -34px rgba(0, 229, 212, .7);
}
.cs-tile--accent {
  background: linear-gradient(160deg, rgba(255, 107, 74, .16), rgba(10, 31, 58, .94) 62%);
  border-color: rgba(255, 107, 74, .32);
}
.cs-tile--accent::before { background: var(--cs-coral); box-shadow: 0 0 14px rgba(255, 107, 74, .9); }

@media (min-width: 640px) {
  .cs-tile--half { grid-column: span 6; }
  .cs-tile--third { grid-column: span 6; }
}
@media (min-width: 960px) {
  .cs-tile--half { grid-column: span 6; }
  .cs-tile--third { grid-column: span 4; }
  .cs-tile--fourth { grid-column: span 3; }
  .cs-tile--wide { grid-column: span 8; }
  .cs-tile--narrow { grid-column: span 4; }
  .cs-tile--full { grid-column: span 12; }
}

/* ---------- 图片容器基础 ---------- */
.cs-media {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--cs-radius);
  border: 1px solid rgba(0, 229, 212, .18);
  background:
    radial-gradient(120% 120% at 15% 0%, rgba(0, 229, 212, .18), transparent 55%),
    radial-gradient(120% 120% at 90% 100%, rgba(255, 107, 74, .14), transparent 55%),
    linear-gradient(150deg, #0a2038, #081a2e);
  aspect-ratio: 16 / 10;
  isolation: isolate;
}
.cs-media img { width: 100%; height: 100%; object-fit: cover; }
.cs-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .6;
  background-image: radial-gradient(rgba(242, 247, 255, .07) 1px, transparent 1px);
  background-size: 4px 4px;
}
.cs-media--wide { aspect-ratio: 21 / 9; }
.cs-media--tall { aspect-ratio: 3 / 4; }
.cs-media--square { aspect-ratio: 1 / 1; }

@media (max-width: 599px) {
  .cs-media--wide { aspect-ratio: 16 / 10; }
}

/* ---------- 面包屑 ---------- */
.cs-crumbs { margin-bottom: clamp(1rem, 2.4vw, 1.6rem); }
.cs-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem;
  font-size: .78rem;
  color: var(--cs-slate);
}
.cs-crumbs li { display: inline-flex; align-items: center; gap: .4rem; }
.cs-crumbs li + li::before { content: "/"; color: rgba(125, 147, 171, .55); }
.cs-crumbs a { color: #a9bed4; text-decoration: none; }
.cs-crumbs a:hover { color: var(--cs-cyan); text-decoration: none; }
.cs-crumbs [aria-current="page"] { color: var(--cs-fog); }

/* ---------- 正文 ---------- */
.cs-prose {
  max-width: 68ch;
  font-size: 1rem;
  line-height: 1.78;
  color: #cfddec;
}
.cs-prose > * + * { margin-top: 1.05em; }
.cs-prose h2 { margin-top: 2em; font-size: clamp(1.3rem, 2.4vw, 1.7rem); }
.cs-prose h3 { margin-top: 1.6em; font-size: 1.15rem; }
.cs-prose ul, .cs-prose ol { padding-left: 1.2rem; list-style: disc; }
.cs-prose ol { list-style: decimal; }
.cs-prose li + li { margin-top: .45em; }
.cs-prose strong { color: var(--cs-fog); font-weight: 700; }
.cs-prose a { color: var(--cs-cyan); text-decoration: underline; }

/* ---------- 主题筛选 ---------- */
.cs-filter { display: flex; flex-wrap: wrap; gap: .45rem; }
.cs-filter__btn {
  appearance: none;
  padding: .42rem .92rem;
  border-radius: 999px;
  border: 1px solid rgba(125, 147, 171, .32);
  background: rgba(10, 31, 58, .72);
  color: #b9cbe0;
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .03em;
  cursor: pointer;
  transition: color .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease;
}
.cs-filter__btn:hover { color: var(--cs-fog); border-color: rgba(0, 229, 212, .5); }
.cs-filter__btn[aria-pressed="true"] {
  color: #032a2c;
  background: linear-gradient(135deg, var(--cs-cyan), #5cf6e6);
  border-color: transparent;
  box-shadow: 0 10px 26px -14px rgba(0, 229, 212, .95);
}

/* ---------- 折叠面板 ---------- */
.cs-fold {
  border: 1px solid rgba(125, 147, 171, .24);
  border-radius: 16px;
  background: rgba(9, 26, 47, .72);
  overflow: hidden;
}
.cs-fold + .cs-fold { margin-top: .65rem; }
.cs-fold__btn {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  border: 0;
  background: none;
  color: var(--cs-fog);
  font-family: var(--cs-sans);
  font-size: 1rem;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
}
.cs-fold__btn:hover { color: var(--cs-cyan); }
.cs-fold__btn::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--cs-mono);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--cs-cyan);
  transition: transform .3s ease;
}
.cs-fold[data-open] .cs-fold__btn::after { transform: rotate(45deg); }

.cs-fold__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .34s cubic-bezier(.4, 0, .2, 1);
}
.cs-fold[data-open] .cs-fold__panel { grid-template-rows: 1fr; }
.cs-fold__inner { overflow: hidden; min-height: 0; }
.cs-fold__inner > * { margin-inline: 1.1rem; color: #c3d4e6; font-size: .96rem; line-height: 1.72; }
.cs-fold__inner > *:first-child { margin-top: 0; }
.cs-fold__inner > *:last-child { margin-bottom: 1.05rem; }

/* ---------- 显现 ---------- */
.cs-anim [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .6s ease, transform .6s cubic-bezier(.2, .7, .3, 1);
}
.cs-anim [data-reveal].is-in { opacity: 1; transform: none; }

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  .cs-anim [data-reveal] { opacity: 1; transform: none; transition: none; }
}