/* 預熱活動頁 */
.warm-up-page {
  --warm-up-accent: #09eecc;
  --warm-up-accent-soft: #63c0ae;
  --warm-up-card-bg: rgba(8, 18, 40, 0.72);
  --warm-up-border: rgba(9, 151, 247, 0.22);
  position: relative;
  width: 100%;
  padding: clamp(2.5rem, 6vw, 4rem) clamp(1.25rem, 4vw, 5rem)
    clamp(5rem, 10vw, 7rem);
  overflow-x: clip;
}

.warm-up-page::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 14% 20%, rgba(255, 255, 255, 0.35), transparent),
    radial-gradient(1px 1px at 82% 16%, rgba(120, 180, 255, 0.4), transparent),
    radial-gradient(1px 1px at 48% 78%, rgba(255, 255, 255, 0.28), transparent);
}

.warm-up-page__inner {
  position: relative;
  z-index: 1;
  max-width: 75rem;
  margin: 0 auto;
}

/* Hero */
.warm-up-page__hero {
  margin-bottom: clamp(3rem, 8vw, 5rem);
  text-align: center;
}

.warm-up-page__hero-title {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 5.5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0.04em;
  color: #fff;
}

.warm-up-page__hero-subtitle {
  margin: 0 0 clamp(1.5rem, 4vw, 2rem);
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.08em;
  background: linear-gradient(90deg, #2066b1 0%, #63c0ae 45.67%, #75c4ec 99.99%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

@supports not ((-webkit-background-clip: text) or (background-clip: text)) {
  .warm-up-page__hero-subtitle {
    color: #6CE5C6;
    background: none;
    -webkit-text-fill-color: currentColor;
  }
}

.warm-up-page__period {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.35rem 0.5rem;
  margin: 0;
  padding: 0.65rem 1.25rem;
  border: 1px solid var(--warm-up-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  font-size: clamp(0.875rem, 2vw, 1rem);
  line-height: 1.5;
}

.warm-up-page__period span {
  color: #fbfbfb;
}

.warm-up-page__period-icon {
  width: 1.125rem;
  height: 1.125rem;
  color: var(--warm-up-accent-soft);
}

.warm-up-page__period strong {
  font-weight: 500;
  color: #6ce5c6;
}

/* Section head */
.warm-up-page__section {
  margin-bottom: clamp(3rem, 8vw, 5rem);
}

.warm-up-page__section-head {
  margin-bottom: clamp(1.75rem, 4vw, 2.5rem);
  text-align: center;
}

.warm-up-page__section-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.375rem, 3vw, 1.75rem);
  font-weight: 700;
  line-height: 1.4;
  color: #fff;
}

.warm-up-page__section-line {
  display: block;
  width: 3rem;
  height: 3px;
  margin: 0 auto;
  border: none;
  border-radius: 999px;
  background: linear-gradient(90deg, #2066b1 0%, var(--warm-up-accent-soft) 50%, #75c4ec 100%);
}

/* Venues */
.warm-up-page__venues {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(1rem, 2.5vw, 1.5rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.warm-up-page__venue {
  display: flex;
  flex: 0 1 calc((100% - 2 * clamp(1rem, 2.5vw, 1.5rem)) / 3);
  flex-direction: column;
  min-width: min(100%, 16rem);
  max-width: calc((100% - 2 * clamp(1rem, 2.5vw, 1.5rem)) / 3);
  padding: 0;
  border: 1px solid var(--warm-up-border);
  border-radius: 0.875rem;
  background: var(--warm-up-card-bg);
  overflow: hidden;
}

.warm-up-page__venue-head {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: clamp(1rem, 2.5vw, 1.25rem);
  text-align: left;
}

.warm-up-page__venue-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: #0997F733;
  border-top: 1.22px solid #0997F74D;
}

.warm-up-page__venue-icon img {
  display: block;
  width: 1.125rem;
  height: 1.125rem;
  object-fit: contain;
}

.warm-up-page__venue-name {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  color: #fff;
}

.warm-up-page__venue-address {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.55);
}

.warm-up-page__venue-media {
  position: relative;
  width: 100%;
  margin: 0;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.warm-up-page__venue-media::before,
.warm-up-page__venue-media::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  z-index: 1;
  height: 35%;
  pointer-events: none;
}

.warm-up-page__venue-media::before {
  top: 0;
  background: linear-gradient(
    to bottom,
    rgba(8, 18, 40, 0.92) 0%,
    rgba(8, 18, 40, 0.35) 55%,
    transparent 100%
  );
}

.warm-up-page__venue-media::after {
  bottom: 0;
  background: linear-gradient(
    to top,
    rgba(8, 18, 40, 0.92) 0%,
    rgba(8, 18, 40, 0.35) 55%,
    transparent 100%
  );
}

.warm-up-page__venue-media:last-child {
  flex: 1 1 auto;
  aspect-ratio: auto;
  min-height: clamp(10rem, 24vw, 14rem);
}

.warm-up-page__venue-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.warm-up-page__venue-media + .warm-up-page__venue-foot {
  margin-top: clamp(1.25rem, 3vw, 1.5rem);
  padding: clamp(0.75rem, 2vw, 1rem) clamp(1rem, 2.5vw, 1.25rem)
    clamp(1rem, 2.5vw, 1.25rem);
}

.warm-up-page__venue-foot {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.warm-up-page__venue-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: fit-content;
  padding: 0.75rem 1rem;
  border: 1px solid #6CE5C6;
  border-radius: 10rem;
  background: #6CE5C60D;
  color: var(--warm-up-accent);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.4;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.warm-up-page__venue-btn img {
  display: block;
  width: 1rem;
  height: 1rem;
}

.warm-up-page__venue-btn:hover {
  background: rgba(9, 238, 204, 0.18);
  border-color: #6CE5C6;
}

.warm-up-page__venue-note {
  margin: 0;
  font-size: 0.75rem;
  line-height: 1.5;
  text-align: center;
  color: rgba(255, 255, 255, 0.4);
}

/* Process steps */
.warm-up-page__steps-panel {
  padding: clamp(1.75rem, 4vw, 2.5rem) clamp(1rem, 3vw, 1.5rem);
  border-radius: 2rem;
  border: 1px solid #0AEECC4D;
  background: linear-gradient(
    135deg,
    rgba(9, 151, 247, 0.058) 0%,
    rgba(10, 238, 204, 0.058) 100%
  );
}

.warm-up-page__steps {
  --step-gap: clamp(2.75rem, 6vw, 5.5rem);
  --step-arrow-size: clamp(5rem, 12vw, 8.5rem);
  --step-icon-size: 7rem;
  --step-arrow-offset: calc(var(--step-icon-size) / 2 - 0.84375rem);
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  column-gap: var(--step-gap);
  row-gap: clamp(1.25rem, 3vw, 2rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.warm-up-page__step {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 0;
  padding: 0 clamp(0.25rem, 1vw, 0.5rem);
  text-align: center;
}

.warm-up-page__step-arrow {
  position: absolute;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--step-arrow-size);
  margin: 0;
  padding: 0;
  pointer-events: none;
  transform: translateX(-50%);
}

.warm-up-page__step-arrow:nth-child(2) {
  grid-column: 1 / 3;
  grid-row: 1;
  top: var(--step-arrow-offset);
  left: 50%;
}

.warm-up-page__step-arrow:nth-child(4) {
  grid-column: 2 / 4;
  grid-row: 1;
  top: var(--step-arrow-offset);
  left: 50%;
}

.warm-up-page__step-arrow:nth-child(6) {
  grid-column: 3 / 5;
  grid-row: 1;
  top: var(--step-arrow-offset);
  left: 50%;
}

.warm-up-page__step-arrow img {
  display: block;
  width: var(--step-arrow-size);
  max-width: none;
  height: auto;
}

.warm-up-page__step-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 7rem;
  height: 7rem;
  border: 3px solid #8097f7;
  padding: 0.5rem;
  border-radius: 50%;
  overflow: hidden;
  box-sizing: border-box;
}

.warm-up-page__step-icon img {
  display: block;
  width: 88%;
  height: 88%;
  object-fit: contain;
}

.warm-up-page__step-num {
  margin: 0;
  padding: 0.15rem 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.4;
  color: #8097f7;
}

.warm-up-page__step-title {
  margin: 0;
  padding: 0.2rem 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.45;
  color: #ECF2F7;
}

.warm-up-page__step-desc {
  margin: 0;
  padding: 0.2rem 0.5rem;
  font-size: 1rem;
  line-height: 1.6;
  color: #ECF2F7;
}

/* Platform */
.warm-up-page__platforms {
  --platforms-gap: clamp(1rem, 2.5vw, 1.5rem);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--platforms-gap);
  align-items: stretch;
  justify-content: center;
}

.warm-up-page__platform:last-child:nth-child(odd):not(:only-child) {
  grid-column: 1 / -1;
  justify-self: center;
  width: calc((100% - var(--platforms-gap)) / 2);
}

.warm-up-page__platform {
  --platform-padding-x: clamp(1.75rem, 4vw, 2.5rem);
  --platform-padding-y: clamp(2.5rem, 5.5vw, 3rem);
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
  gap: clamp(0.75rem, 2vw, 1.25rem);
  min-width: 0;
  height: 100%;
  padding: var(--platform-padding-y) var(--platform-padding-x);
  border: 1px solid #6ce5c64d;
  border-radius: 1rem;
  background: linear-gradient(
    135deg,
    rgba(9, 151, 247, 0.058) 0%,
    rgba(10, 238, 204, 0.058) 100%
  );
  overflow: hidden;
}

.warm-up-page__platform-content {
  flex: 1 1 0;
  min-width: 0;
  max-width: none;
}

.warm-up-page__platform-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.125rem, 2.2vw, 1.5rem);
  font-weight: 700;
  line-height: 1.4;
  color: #fff;
}

.warm-up-page__platform-title-accent {
  background: linear-gradient(90deg, #2066b1 0%, #63c0ae 45.67%, #75c4ec 99.99%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

@supports not ((-webkit-background-clip: text) or (background-clip: text)) {
  .warm-up-page__platform-title-accent {
    color: #6ce5c6;
    background: none;
    -webkit-text-fill-color: currentColor;
  }
}

.warm-up-page__platform-desc {
  margin: 0 0 2.5rem;
  font-size: clamp(0.875rem, 1.6vw, 1rem);
  line-height: 1.75;
  color: #ECF2F7;
}

.warm-up-page__platform-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.125rem;
  border: 1px solid #6ce5c6;
  border-radius: 999px;
  background: linear-gradient(90deg, #2066b1 0%, #63c0ae 45.67%, #75c4ec 99.99%);
  color: #001430;
  font-size: clamp(0.8125rem, 1.5vw, 0.9375rem);
  line-height: 1.4;
  text-decoration: none;
  box-shadow: 0 4px 18px rgba(32, 102, 177, 0.28);
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    filter 0.25s ease,
    border-color 0.25s ease,
    color 0.25s ease;
}

.warm-up-page__platform-btn span[aria-hidden="true"] {
  display: inline-block;
  transition: transform 0.25s ease;
}

.warm-up-page__platform-btn:hover {
  transform: translateY(-2px);
  border-color: #09eecc;
  color: #fff;
  filter: brightness(1.08);
  box-shadow:
    0 10px 28px rgba(108, 229, 198, 0.35),
    0 0 0 1px rgba(108, 229, 198, 0.25);
}

.warm-up-page__platform-btn:hover span[aria-hidden="true"] {
  transform: translateX(0.25rem);
}

.warm-up-page__platform-btn:active {
  transform: translateY(0);
  filter: brightness(1);
  box-shadow: 0 4px 14px rgba(32, 102, 177, 0.22);
}

.warm-up-page__platform-visual {
  display: flex;
  flex: 0 1 42%;
  align-items: center;
  align-self: stretch;
  justify-content: flex-end;
  min-width: 0;
  margin-block: calc(-1 * var(--platform-padding-y));
  margin-right: calc(-1 * var(--platform-padding-x));
  margin-left: 0;
}

.warm-up-page__platform-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: right center;
}

@media (max-width: 1024px) {
  .warm-up-page__venue {
    flex: 0 1 calc((100% - clamp(1rem, 2.5vw, 1.5rem)) / 2);
    max-width: calc((100% - clamp(1rem, 2.5vw, 1.5rem)) / 2);
  }

  .warm-up-page__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .warm-up-page__step-arrow:nth-child(2) {
    grid-column: 1 / 3;
    grid-row: 1;
  }

  .warm-up-page__step-arrow:nth-child(4) {
    display: none;
  }

  .warm-up-page__step-arrow:nth-child(6) {
    grid-column: 1 / 3;
    grid-row: 2;
  }
}

@media (max-width: 640px) {
  .warm-up-page__venue,
  .warm-up-page__step {
    max-width: 22rem;
  }

  .warm-up-page__steps {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
  }

  .warm-up-page__step {
    width: 100%;
  }

  .warm-up-page__step-arrow {
    position: static;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 22rem;
    margin-block: clamp(1.5rem, 5vw, 2.25rem);
    padding: 0;
    transform: none;
    --step-arrow-size: clamp(5.5rem, 52vw, 8rem);
    min-height: var(--step-arrow-size);
  }

  .warm-up-page__step-arrow:nth-child(2),
  .warm-up-page__step-arrow:nth-child(4),
  .warm-up-page__step-arrow:nth-child(6) {
    grid-column: unset;
    grid-row: unset;
    top: auto;
    left: auto;
  }

  .warm-up-page__step-arrow:nth-child(4) {
    display: flex;
  }

  .warm-up-page__step-arrow img {
    display: block;
    width: var(--step-arrow-size);
    height: auto;
    flex-shrink: 0;
    transform: rotate(90deg);
  }

  .warm-up-page__platforms {
    grid-template-columns: 1fr;
  }

  .warm-up-page__platform:last-child:nth-child(odd):not(:only-child) {
    grid-column: auto;
    justify-self: stretch;
    width: auto;
  }

  .warm-up-page__platform {
    flex-direction: column;
    flex-wrap: wrap;
    text-align: center;
  }

  .warm-up-page__platform-content {
    max-width: none;
    flex: 0;
  }

  .warm-up-page__platform-visual {
    align-self: center;
    width: calc(100% + 2 * var(--platform-padding-x));
    margin-block: 0 calc(-1 * var(--platform-padding-y));
    margin-inline: calc(-1 * var(--platform-padding-x));
  }

  .warm-up-page__platform-visual img {
    object-position: center;
  }

  .warm-up-page__platform-btn {
    margin-inline: auto;
  }
}