:root {
  color-scheme: dark;
  --cyan: #57e8ff;
  --violet: #8b5cf6;
  --ink: #030712;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: #f8fbff;
  background:
    radial-gradient(circle at 18% 12%, rgba(87, 232, 255, .12), transparent 28%),
    radial-gradient(circle at 82% 16%, rgba(139, 92, 246, .16), transparent 30%),
    linear-gradient(180deg, #030712 0%, #07101e 52%, #030712 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

button { font: inherit; }

.case-page-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  height: 78px;
  padding: 0 clamp(18px, 4vw, 76px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  background: rgba(3, 7, 18, .76);
  backdrop-filter: blur(20px);
}

.case-page-header .brand {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
}

.case-page-header .brand img {
  display: block;
  width: clamp(168px, 16vw, 210px);
  height: 42px;
  object-fit: contain;
  object-position: left center;
}

.cases-page {
  position: relative;
  padding: 132px clamp(18px, 4vw, 76px) 80px;
}

.cases-page::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: .32;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(114, 183, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(114, 183, 255, .04) 1px, transparent 1px);
  background-size: 56px 56px;
  content: "";
}

.cases-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 520px);
  gap: clamp(30px, 7vw, 120px);
  align-items: end;
  width: min(1480px, 100%);
  margin: 0 auto 46px;
}

.cases-page-kicker {
  grid-column: 1 / -1;
  margin: 0 0 -18px;
  color: var(--cyan);
  font: 800 12px/1.2 ui-monospace, SFMono-Regular, Consolas, monospace;
  letter-spacing: .18em;
}

.cases-hero h1 {
  margin: 0;
  color: transparent;
  background: linear-gradient(96deg, #fff, #78ecff 44%, #a78bfa 78%);
  background-clip: text;
  -webkit-background-clip: text;
  font-size: clamp(40px, 5vw, 76px);
  line-height: 1.05;
  letter-spacing: 0;
}

.cases-hero p {
  max-width: 540px;
  margin: 0;
  color: rgba(205, 225, 240, .66);
  font-size: 16px;
  line-height: 1.9;
}

.case-library {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 26px;
  width: min(1480px, 100%);
  margin: 0 auto;
}

.case-sidebar {
  position: sticky;
  top: 102px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: max-content;
  padding: 16px;
  border: 1px solid rgba(122, 203, 255, .16);
  border-radius: 18px;
  background: rgba(5, 13, 28, .72);
  box-shadow: 0 24px 80px rgba(0, 0, 0, .28), inset 0 1px 0 rgba(255, 255, 255, .05);
  backdrop-filter: blur(18px);
}

.case-sidebar div {
  padding: 4px 4px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.case-sidebar span,
.case-toolbar span {
  display: block;
  margin-bottom: 5px;
  color: rgba(116, 232, 255, .72);
  font: 700 10px/1.2 ui-monospace, SFMono-Regular, Consolas, monospace;
  letter-spacing: .16em;
}

.case-sidebar strong,
.case-toolbar strong {
  color: rgba(245, 250, 255, .92);
  font-size: 18px;
}

.case-filter {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: 12px;
  color: rgba(216, 235, 248, .68);
  background: transparent;
  cursor: pointer;
  transition: .22s ease;
}

.case-filter em {
  color: rgba(152, 210, 244, .42);
  font-style: normal;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}

.case-filter:hover,
.case-filter.is-active {
  color: #fff;
  border-color: rgba(92, 230, 255, .34);
  background: linear-gradient(90deg, rgba(87, 232, 255, .12), rgba(139, 92, 246, .08));
}

.case-content {
  min-width: 0;
}

.case-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  padding: 16px 18px;
  border: 1px solid rgba(122, 203, 255, .14);
  border-radius: 18px;
  background: rgba(5, 13, 28, .52);
}

.case-toolbar a {
  flex: 0 0 auto;
  padding: 11px 16px;
  border: 1px solid rgba(122, 203, 255, .24);
  border-radius: 999px;
  color: rgba(232, 248, 255, .82);
  font-size: 14px;
  font-weight: 700;
  transition: .22s ease;
}

.case-toolbar a:hover {
  border-color: rgba(92, 230, 255, .62);
  background: rgba(87, 232, 255, .08);
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
}

.case-grid[data-layout="wide"] {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.case-grid[data-layout="wide"] .case-card-copy {
  min-height: 132px;
  padding: 19px 20px 22px;
}

.case-grid[data-layout="wide"] .case-card-copy h2 {
  font-size: 21px;
}

.case-grid[data-layout="wide"] .case-card-copy p {
  font-size: 14px;
  line-height: 1.7;
}

.case-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(122, 203, 255, .15);
  border-radius: 18px;
  color: inherit;
  background: linear-gradient(155deg, rgba(13, 27, 48, .92), rgba(5, 11, 24, .98));
  box-shadow: 0 24px 70px rgba(0, 0, 0, .3), inset 0 1px 0 rgba(255, 255, 255, .05);
  cursor: zoom-in;
  transition: transform .28s ease, border-color .28s ease, box-shadow .28s ease;
}

.case-card:hover {
  transform: translateY(-5px);
  border-color: rgba(92, 230, 255, .45);
  box-shadow: 0 28px 82px rgba(0, 0, 0, .38), 0 0 26px rgba(87, 232, 255, .1);
}

.case-thumb {
  position: relative;
  aspect-ratio: 16 / 11;
  overflow: hidden;
  background: #07101f;
}

.case-card[data-type="app"] .case-thumb,
.case-card[data-type="game"] .case-thumb {
  aspect-ratio: 9 / 21;
}

.case-card[data-type="pc"] .case-thumb {
  aspect-ratio: 16 / 9;
}

.case-card[data-type="screen"] .case-thumb {
  aspect-ratio: 16 / 9;
}

.case-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform .8s cubic-bezier(.2, .75, .2, 1), filter .28s ease;
}

.case-card:hover .case-thumb img {
  transform: scale(1.035);
  filter: saturate(1.08);
}

.case-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  padding: 6px 10px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  color: #f3fbff;
  background: rgba(3, 8, 18, .62);
  backdrop-filter: blur(10px);
  font-size: 12px;
  font-weight: 800;
}

.case-card-copy {
  min-height: 116px;
  padding: 16px 16px 18px;
}

.case-card-copy h2 {
  margin: 0 0 8px;
  color: rgba(248, 252, 255, .96);
  font-size: 18px;
  line-height: 1.35;
}

.case-card-copy p {
  margin: 0;
  color: rgba(198, 218, 236, .58);
  font-size: 13px;
  line-height: 1.65;
}

.case-empty {
  grid-column: 1 / -1;
  display: grid;
  min-height: 260px;
  place-content: center;
  padding: 34px;
  border: 1px dashed rgba(122, 203, 255, .24);
  border-radius: 18px;
  color: rgba(218, 238, 250, .72);
  background: rgba(5, 13, 28, .42);
  text-align: center;
}

.case-empty strong {
  margin-bottom: 10px;
  color: rgba(248, 252, 255, .94);
  font-size: 22px;
}

.case-empty p {
  margin: 0;
  font-size: 14px;
}

.case-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 30px;
  background: rgba(1, 4, 12, .9);
  backdrop-filter: blur(18px);
}

.case-lightbox.is-open {
  display: flex;
}

.case-lightbox img {
  display: block;
  width: auto;
  height: auto;
  max-width: 92vw;
  max-height: 86vh;
  object-fit: contain;
  border: 1px solid rgba(147, 210, 255, .28);
  border-radius: 20px;
  box-shadow: 0 42px 130px rgba(0, 0, 0, .72);
}

.case-lightbox p {
  position: absolute;
  bottom: 22px;
  left: 50%;
  margin: 0;
  transform: translateX(-50%);
  color: rgba(238, 248, 255, .82);
  font-weight: 700;
}

.case-lightbox-close {
  position: absolute;
  top: 22px;
  right: 22px;
  display: grid;
  width: 46px;
  height: 46px;
  padding: 0;
  place-items: center;
  border: 1px solid rgba(154, 215, 255, .3);
  border-radius: 50%;
  color: #fff;
  background: #071225;
  font-size: 28px;
  cursor: pointer;
}

@media (max-width: 900px) {
  .case-page-header { height: 66px; padding-inline: 16px; }
  .case-page-header .brand img { width: 140px; }
  .case-page-header .phone-link { display: none; }
  .cases-page { padding: 104px 16px 62px; }
  .cases-hero { grid-template-columns: 1fr; gap: 20px; margin-bottom: 28px; }
  .cases-page-kicker { margin-bottom: -8px; }
  .cases-hero h1 { font-size: clamp(38px, 12vw, 58px); }
  .case-library { grid-template-columns: 1fr; gap: 18px; }
  .case-sidebar { position: static; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); padding: 10px; }
  .case-sidebar div { grid-column: 1 / -1; }
  .case-filter { min-height: 42px; justify-content: center; gap: 8px; padding: 0 8px; font-size: 13px; }
  .case-toolbar { align-items: flex-start; flex-direction: column; }
  .case-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 13px; }
  .case-grid[data-layout="wide"] { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; }
  .case-card-copy { min-height: 122px; padding: 13px; }
  .case-grid[data-layout="wide"] .case-card-copy { min-height: 122px; padding: 14px; }
  .case-card-copy h2 { font-size: 15px; }
  .case-grid[data-layout="wide"] .case-card-copy h2 { font-size: 16px; }
  .case-card-copy p { font-size: 12px; }
  .case-grid[data-layout="wide"] .case-card-copy p { font-size: 12px; }
}

@media (max-width: 520px) {
  .case-sidebar { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .case-grid { grid-template-columns: 1fr; }
  .case-grid[data-layout="wide"] { grid-template-columns: 1fr; }
}