@font-face {
  font-family: "Tianne Sans";
  src: url("/assets/Poppins-Regular.woff2") format("woff2");
  font-display: swap;
  font-weight: 400;
}

@font-face {
  font-family: "Tianne Sans";
  src: url("/assets/Poppins-SemiBold.woff2") format("woff2");
  font-display: swap;
  font-weight: 600;
}

:root {
  color: #f2f5fa;
  background: var(--site-background);
  font-family: "Tianne Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
  background: var(--site-background);
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: #f2f5fa;
  background:
    radial-gradient(900px 420px at 72% 13%, rgba(24, 59, 140, 0.1), transparent 62%),
    radial-gradient(700px 520px at 24% 70%, rgba(26, 49, 107, 0.05), transparent 66%),
    var(--site-background);
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.012) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.01) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.4), transparent 70%);
}

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

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

.cases-skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1100;
  padding: 10px 14px;
  color: #fff;
  background: #1d65dc;
  transform: translateY(-160%);
}

.cases-skip-link:focus {
  transform: none;
}

.applications-page {
  padding-bottom: 22px;
  overflow: hidden;
}

.applications-shell {
  width: min(calc(100% - 64px), 1274px);
  margin-inline: auto;
}

.applications-hero {
  position: relative;
  height: 302px;
  display: grid;
  grid-template-columns: 47% 53%;
  align-items: start;
  padding-top: 50px;
}

.applications-hero__copy {
  position: relative;
  z-index: 2;
}

.applications-eyebrow {
  margin: 0 0 20px;
  color: rgba(170, 181, 205, 0.67);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.045em;
  line-height: 1;
}

.applications-hero h1 {
  margin: 0;
  color: #f4f6fa;
  font-size: clamp(42px, 3.45vw, 57px);
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.08;
  text-shadow: 0 1px 18px rgba(255, 255, 255, 0.03);
}

.applications-hero__description {
  margin: 24px 0 0;
  color: rgba(228, 232, 239, 0.83);
  font-size: 17px;
  letter-spacing: 0.012em;
  line-height: 1.82;
}

.applications-hero__rule {
  width: 36px;
  height: 2px;
  margin-top: 29px;
  display: block;
  border-radius: 99px;
  background: #408aff;
  box-shadow: 0 0 10px rgba(64, 138, 255, 0.22);
}

.applications-hero__art {
  position: absolute;
  top: 17px;
  right: -1px;
  z-index: 1;
  width: 635px;
  height: 270px;
  overflow: hidden;
  opacity: 0.98;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 66% 54% at 56% 50%, #000 48%, rgba(0, 0, 0, 0.94) 68%, transparent 100%);
}

.applications-hero__art::after {
  position: absolute;
  inset: auto 8% 1%;
  height: 38%;
  content: "";
  background: radial-gradient(ellipse, rgba(29, 100, 255, 0.13), transparent 68%);
  filter: blur(17px);
}

.applications-hero__art img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: screen;
  filter: saturate(1.06) contrast(1.02);
  transform-origin: 58% 58%;
  animation: applications-hero-float 8s ease-in-out infinite;
}

.applications-cases {
  display: grid;
  gap: 16px;
}

.applications-case-card {
  --case-theme: #2878ff;
  --pointer-x: 62%;
  --pointer-y: 50%;
  position: relative;
  min-height: 185px;
  padding: 0 44px 0 30px;
  border: 1px solid color-mix(in srgb, var(--case-theme) 55%, transparent);
  border-radius: 13px;
  display: grid;
  grid-template-columns: 88px minmax(330px, 1fr) 360px 210px;
  align-items: center;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(6, 12, 27, 0.93), rgba(6, 11, 24, 0.76) 44%, rgba(4, 10, 22, 0.74)),
    radial-gradient(360px 160px at 61% 50%, color-mix(in srgb, var(--case-theme) 8%, transparent), transparent 65%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.015),
    0 16px 46px rgba(1, 3, 10, 0.08);
  transition: border-color 240ms ease, transform 240ms ease, box-shadow 240ms ease;
}

.applications-case-card::before,
.applications-case-card::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
}

.applications-case-card::before {
  background: linear-gradient(100deg, transparent 0 50%, color-mix(in srgb, var(--case-theme) 3%, transparent) 74%, transparent 100%);
}

.applications-case-card::after {
  z-index: 0;
  background: radial-gradient(420px 180px at var(--pointer-x) var(--pointer-y), color-mix(in srgb, var(--case-theme) 8%, transparent), transparent 66%);
  opacity: 0;
  transition: opacity 220ms ease;
}

.applications-case-card--purple {
  --case-theme: #a149f1;
}

.applications-case-card--cyan {
  --case-theme: #0fc3cf;
}

.applications-case-card__index,
.applications-case-card__copy,
.applications-case-card__visual,
.applications-case-card__link {
  position: relative;
  z-index: 1;
}

.applications-case-card__index {
  align-self: start;
  padding-top: 29px;
  color: var(--case-theme);
  font-size: 40px;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1;
  text-shadow: 0 0 18px color-mix(in srgb, var(--case-theme) 16%, transparent);
}

.applications-case-card__copy {
  align-self: center;
}

.applications-case-card__copy h2 {
  margin: 0;
  color: #f2f4f8;
  font-size: 27px;
  font-weight: 600;
  letter-spacing: 0.008em;
  line-height: 1.2;
}

.applications-case-card__rule {
  width: 28px;
  height: 2px;
  margin: 17px 0 16px;
  display: block;
  border-radius: 8px;
  background: var(--case-theme);
  box-shadow: 0 0 9px color-mix(in srgb, var(--case-theme) 24%, transparent);
}

.applications-case-card__copy p {
  margin: 0;
  color: rgba(218, 223, 232, 0.77);
  font-size: 15px;
  letter-spacing: 0.004em;
  line-height: 1.72;
}

.applications-case-card__visual {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  overflow: hidden;
  mask-image: radial-gradient(ellipse 62% 60% at center, #000 48%, rgba(0, 0, 0, 0.9) 67%, transparent 100%);
}

.applications-case-card__visual img {
  width: 330px;
  max-height: 172px;
  object-fit: contain;
  mix-blend-mode: screen;
  filter: saturate(1.05) contrast(1.03);
  transition: transform 350ms ease, filter 350ms ease;
}

/* 同比例素材中，成骨肽主体留白更少，因此单独收紧视觉尺寸。 */
.applications-case-card--blue .applications-case-card__visual img {
  width: 240px;
  max-height: 125px;
}

.applications-case-card__link {
  justify-self: end;
  color: var(--case-theme);
  font-size: 16px;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: filter 200ms ease;
}

.applications-case-card__link span {
  margin-left: 9px;
  display: inline-block;
  transition: transform 200ms ease;
}

.applications-cooperation {
  padding: 27px 0 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.applications-cooperation__button {
  min-width: 361px;
  height: 48px;
  padding: 0 22px;
  border: 1px solid rgba(37, 174, 255, 0.62);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  color: #eef6ff;
  background: linear-gradient(180deg, rgba(9, 22, 40, 0.72), rgba(6, 14, 27, 0.86));
  box-shadow: inset 0 0 30px rgba(31, 125, 255, 0.025);
  font-size: 17px;
  transition: border-color 200ms ease, background 200ms ease, transform 200ms ease;
}

.applications-cooperation__button svg {
  width: 27px;
  height: 27px;
  fill: none;
  stroke: #24b8ff;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.4;
}

.applications-cooperation__arrow {
  margin-left: 2px;
  color: #58c9ff;
  transition: transform 200ms ease;
}

.applications-cooperation > p {
  margin: 13px 0 0;
  color: rgba(211, 217, 227, 0.76);
  font-size: 14px;
  letter-spacing: 0.01em;
}

html.cases-motion [data-cases-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 500ms cubic-bezier(0.22, 1, 0.36, 1), transform 620ms cubic-bezier(0.22, 1, 0.36, 1);
}

html.cases-motion [data-cases-reveal][data-reveal-direction="up"]:not(.is-visible) {
  transform: translateY(-18px);
}

html.cases-motion [data-cases-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@keyframes applications-hero-float {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(0, -5px, 0) scale(1.006); }
}

@media (hover: hover) and (pointer: fine) {
  .applications-case-card:hover {
    border-color: color-mix(in srgb, var(--case-theme) 78%, transparent);
    box-shadow: 0 16px 46px rgba(1, 3, 10, 0.16), 0 0 26px color-mix(in srgb, var(--case-theme) 7%, transparent);
    transform: translateY(-2px);
  }

  .applications-case-card:hover::after {
    opacity: 1;
  }

  .applications-case-card:hover .applications-case-card__visual img {
    filter: saturate(1.1) contrast(1.05) brightness(1.03);
    transform: translateY(-3px) scale(1.018);
  }

  .applications-case-card__link:hover {
    filter: brightness(1.18);
  }

  .applications-case-card__link:hover span,
  .applications-cooperation__button:hover .applications-cooperation__arrow {
    transform: translateX(4px);
  }

  .applications-cooperation__button:hover {
    border-color: rgba(48, 190, 255, 0.9);
    background: linear-gradient(180deg, rgba(11, 28, 49, 0.94), rgba(6, 16, 31, 0.95));
    transform: translateY(-1px);
  }
}

.applications-case-card__link:focus-visible,
.applications-cooperation__button:focus-visible {
  outline: 2px solid #6ed7ff;
  outline-offset: 4px;
}

.applications-case-card__link:active,
.applications-cooperation__button:active {
  transform: translateY(1px);
}

@media (max-width: 1100px) {
  .applications-shell {
    width: min(calc(100% - 42px), 980px);
  }

  .applications-hero {
    grid-template-columns: 53% 47%;
  }

  .applications-hero__art {
    right: -50px;
    width: 520px;
    opacity: 0.82;
  }

  .applications-case-card {
    padding-right: 24px;
    grid-template-columns: 72px minmax(260px, 1fr) 260px 170px;
  }

  .applications-case-card__visual img {
    width: 280px;
  }

  .applications-case-card--blue .applications-case-card__visual img {
    width: 204px;
    max-height: 125px;
  }
}

@media (max-width: 820px) {
  .applications-shell {
    width: min(calc(100% - 32px), 720px);
  }

  .applications-hero {
    height: auto;
    min-height: 320px;
    padding-top: 42px;
    display: block;
  }

  .applications-hero__copy {
    max-width: 80%;
  }

  .applications-hero__art {
    top: 75px;
    right: -115px;
    width: 470px;
    height: 230px;
    opacity: 0.5;
  }

  .applications-hero__description {
    font-size: 15px;
  }

  .applications-cases {
    margin-top: 22px;
  }

  .applications-case-card {
    min-height: 230px;
    padding: 22px 20px 20px;
    grid-template-columns: 62px 1fr 150px;
    grid-template-areas:
      "index copy visual"
      "index link visual";
  }

  .applications-case-card__index {
    grid-area: index;
    padding-top: 2px;
    font-size: 34px;
  }

  .applications-case-card__copy {
    grid-area: copy;
    align-self: end;
  }

  .applications-case-card__visual {
    grid-area: visual;
    min-height: 180px;
  }

  .applications-case-card__visual img {
    width: 220px;
    max-width: 220px;
  }

  .applications-case-card--blue .applications-case-card__visual img {
    width: 160px;
    max-width: 160px;
    max-height: 125px;
  }

  .applications-case-card__link {
    grid-area: link;
    align-self: start;
    justify-self: start;
    padding-top: 16px;
  }
}

@media (max-width: 590px) {
  .applications-shell {
    width: calc(100% - 28px);
  }

  .applications-hero {
    min-height: 342px;
    padding-top: 34px;
  }

  .applications-hero__copy {
    max-width: none;
  }

  .applications-eyebrow {
    margin-bottom: 15px;
    font-size: 12px;
  }

  .applications-hero h1 {
    font-size: 42px;
  }

  .applications-hero__description {
    margin-top: 19px;
    padding-right: 20px;
    line-height: 1.75;
  }

  .applications-hero__description br,
  .applications-case-card__copy p br {
    display: none;
  }

  .applications-hero__rule {
    margin-top: 24px;
  }

  .applications-hero__art {
    top: 154px;
    right: -105px;
    width: 360px;
    height: 190px;
    opacity: 0.5;
  }

  .applications-cases {
    margin-top: 12px;
    gap: 12px;
  }

  .applications-case-card {
    min-height: 306px;
    padding: 22px 22px 20px;
    grid-template-columns: 52px 1fr;
    grid-template-areas:
      "index visual"
      "copy copy"
      "link link";
    align-items: start;
  }

  .applications-case-card__index {
    font-size: 32px;
  }

  .applications-case-card__visual {
    min-height: 132px;
    height: 132px;
    justify-content: end;
  }

  .applications-case-card__visual img {
    width: 205px;
    max-height: 132px;
  }

  .applications-case-card--blue .applications-case-card__visual img {
    width: 148px;
    max-width: 148px;
    max-height: 96px;
  }

  .applications-case-card__copy {
    align-self: start;
    padding-top: 6px;
  }

  .applications-case-card__copy h2 {
    font-size: 24px;
  }

  .applications-case-card__rule {
    margin: 13px 0 12px;
  }

  .applications-case-card__copy p {
    font-size: 14px;
  }

  .applications-case-card__link {
    padding-top: 13px;
    font-size: 15px;
  }

  .applications-cooperation {
    padding-top: 23px;
  }

  .applications-cooperation__button {
    width: 100%;
    min-width: 0;
    height: 50px;
    font-size: 16px;
  }

  .applications-cooperation > p {
    max-width: 310px;
    text-align: center;
    line-height: 1.65;
  }
}

@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;
  }

  html.cases-motion [data-cases-reveal] {
    opacity: 1;
    transform: none;
  }
}