@charset "UTF-8";

/* ==========================================================================
   Hero
   PC はデザイン（1440×960）の比率を保って拡大縮小させるため cqw で指定
   ========================================================================== */
.p-hero {
  overflow: hidden;
  background: var(--color-white);
  border-bottom: 4px solid var(--color-border);
}

.p-hero__stage {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.875rem var(--gutter) 2.5rem;
}

.p-hero__logo {
  position: relative;
  width: 100%;
  max-width: 25rem;
  aspect-ratio: 574.76 / 482.45;
  margin-inline: auto;
}

.p-hero__logo img {
  position: absolute;
  max-width: none;
}

.p-hero__logo-main {
  top: 0;
  left: 0;
  width: 100%;
}

.p-hero__logo-advertising {
  top: 79.8%;
  left: 46.75%;
  width: 29.273%;
}

.p-hero__logo-association {
  top: 91.188%;
  left: 2.953%;
  width: 95.003%;
}

.p-hero__collage {
  position: relative;
  z-index: 0;
  background: var(--color-white);
  aspect-ratio: 880 / 720;
  margin: 1.25rem calc(var(--gutter) * -1) 0;
  overflow: hidden;
}

.p-hero__collage::before,
.p-hero__collage::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
}

.p-hero__collage::before {
  background: url("../images/top/hero-overlay.svg") no-repeat 0 0 / 100% 100%;
  mix-blend-mode: screen;
}

.p-hero__collage::after {
  background: linear-gradient(221.83deg, rgba(255, 255, 255, 0) 30.42%, rgba(255, 255, 255, 0.9) 98.64%);
}

.p-hero__collage-item {
  position: absolute;
  max-width: none;
  object-fit: cover;
  transform: rotate(20deg);
}

.p-hero__collage-item--01 { top: -24.055%; left: -10.58%; width: 59.049%; height: 50.944%; }
.p-hero__collage-item--02 { top: 13.474%; left: 81.256%; width: 41.656%; height: 67.885%; }
.p-hero__collage-item--03 { top: 50.182%; left: -36.405%; width: 41.682%; height: 72.171%; }
.p-hero__collage-item--04 { top: 3.473%; left: 50.707%; width: 34.358%; height: 23.441%; }
.p-hero__collage-item--05 { top: 40.65%; left: 14.304%; width: 21.589%; height: 14.371%; }
.p-hero__collage-item--06 { top: 90.984%; left: 2.832%; width: 59.049%; height: 50.944%; }
.p-hero__collage-item--07 { top: 83.696%; left: 74.47%; width: 34.37%; height: 23.56%; }
.p-hero__collage-item--08 { top: 23.071%; left: -21.321%; width: 34.421%; height: 23.525%; }
.p-hero__collage-item--09 { top: 33.484%; left: 36.92%; width: 34.377%; height: 56.022%; }

.p-hero__catch {
  position: relative;
  z-index: 1;
  margin-top: 1.5rem;
  font-size: clamp(1.25rem, 5.6vw, 2.25rem);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-sm);
  line-height: 1.18;
  white-space: nowrap;
}

.p-hero__lead {
  position: relative;
  z-index: 1;
  margin-top: 0.75rem;
  font-size: var(--fs-14);
  letter-spacing: var(--ls-sm);
  line-height: 1.6;
}

@media screen and (min-width: 768px) {
  .p-hero__stage {
    display: block;
    max-width: 90rem;
    aspect-ratio: 1440 / 960;
    margin-inline: auto;
    padding: 0;
    container-type: inline-size;
  }

  .p-hero__logo {
    position: absolute;
    top: 8.347%;
    left: 3.346%;
    z-index: 1;
    width: 39.914%;
    max-width: none;
  }

  .p-hero__collage {
    position: absolute;
    top: 18.958%;
    right: 0;
    width: 61.111%;
    margin: 0;
  }

  .p-hero__catch {
    position: absolute;
    top: 63.854%;
    left: 15.278%;
    margin: 0;
    font-size: 4.1667cqw;
  }

  .p-hero__lead {
    position: absolute;
    top: 81.979%;
    left: 15.278%;
    margin: 0;
    font-size: 1.6667cqw;
    white-space: nowrap;
  }
}

/* ==========================================================================
   Award banner（Figma: 広告賞バナー）
   ========================================================================== */
.p-award {
  padding: 1.875rem var(--gutter) 0;
}

.p-award__banner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: var(--container);
  height: 8.75rem;
  margin-inline: auto;
  overflow: hidden;
  background: url("../images/top/award-bg.svg") no-repeat 0 0 / 100% 100%;
  box-shadow: var(--shadow-sm);
}

.p-award__banner::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 29.483rem;
  height: 29.483rem;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow-glow);
  transform: translate(-50%, -50%) rotate(45deg);
}

.p-award__deco {
  position: absolute;
  z-index: 2;
  width: 6.25rem;
}

.p-award__deco--left {
  top: 0;
  left: 0;
}

.p-award__deco--right {
  right: 0;
  bottom: 0;
  transform: rotate(180deg);
}

.p-award__title,
.p-award__en,
.p-award__more {
  position: relative;
  z-index: 1;
  white-space: nowrap;
}

.p-award__title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-serif);
  font-size: 1.875rem;
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-md);
  line-height: 1.3;
}

.p-award__count {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 2.75rem;
  height: 2.75rem;
  font-size: var(--fs-10);
  letter-spacing: 0;
  color: var(--color-white);
  background: url("../images/top/award-circle.svg") no-repeat center / contain;
}

.p-award__count-num {
  font-size: var(--fs-13);
}

.p-award__en {
  font-family: var(--font-en);
  font-size: var(--fs-10);
  font-weight: var(--fw-extralight);
  letter-spacing: var(--ls-xl);
  line-height: var(--lh-normal);
  color: var(--color-gold);
}

.p-award__more {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.25rem;
  font-size: var(--fs-14);
  font-weight: var(--fw-demilight);
  letter-spacing: var(--ls-lg);
  line-height: var(--lh-normal);
}

.p-award__more .c-arrow {
  width: 0.875rem;
}

@media (hover: hover) {
  .p-award__banner:hover .c-arrow {
    transform: translateX(4px);
  }
}

@media screen and (min-width: 768px) {
  .p-award {
    padding-top: 2.5rem;
  }

  .p-award__banner {
    display: block;
    height: 10rem;
  }

  .p-award__deco {
    width: 11.875rem;
  }

  .p-award__title,
  .p-award__en,
  .p-award__more {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }

  .p-award__title {
    top: 1.2225rem;
    left: calc(50% + 0.25rem);
    align-items: flex-start;
    gap: 0.625rem;
    font-size: var(--fs-55);
    line-height: var(--lh-normal);
  }

  .p-award__count {
    width: 4.375rem;
    height: 4.375rem;
    margin-top: 0.375rem;
    font-size: var(--fs-16);
    line-height: var(--lh-normal);
  }

  .p-award__count-num {
    font-size: var(--fs-20);
  }

  .p-award__en {
    top: 5.7225rem;
    font-size: var(--fs-13);
  }

  .p-award__more {
    top: 7.16rem;
    margin: 0;
    font-size: var(--fs-22);
  }

  .p-award__more .c-arrow {
    width: 1.1875rem;
  }
}

/* ==========================================================================
   About
   ========================================================================== */
.p-about {
  padding: 2.5rem 0 var(--section-space);
}

.p-about__inner {
  display: grid;
  gap: 2.5rem;
}

.p-about__visual {
  width: 100%;
  max-width: 22.5rem;
  margin-inline: auto;
}

.p-about__logo {
  position: relative;
  aspect-ratio: 360 / 309;
  font-family: var(--font-en);
  white-space: nowrap;
  container-type: inline-size;
}

.p-about__logo > span {
  position: absolute;
  line-height: 1;
}

.p-about__logo-niigata,
.p-about__logo-ad {
  left: 50%;
  font-weight: var(--fw-black);
  color: transparent;
  -webkit-text-stroke: 1px var(--color-text);
  transform: translateX(-50%);
}

.p-about__logo-niigata {
  top: 11.928cqw;
  font-size: 17.978cqw;
}

.p-about__logo-ad {
  top: 23cqw;
  font-size: 54.179cqw;
  letter-spacing: -0.1em;
}

.p-about__logo-advertising {
  top: 65.57cqw;
  right: 34.481%;
  font-size: 2.463cqw;
  font-weight: var(--fw-light);
  letter-spacing: var(--ls-lg);
}

.p-about__logo-association {
  top: 72.86cqw;
  left: 50%;
  font-size: 8.619cqw;
  font-weight: var(--fw-thin);
  letter-spacing: var(--ls-xl);
  transform: translateX(-50%);
}

.p-about__devices {
  width: 100%;
}

.p-about__text {
  font-size: var(--fs-16);
  line-height: 2;
}

.p-about__body .c-btn {
  margin-top: 1.875rem;
}

@media screen and (min-width: 768px) {
  .p-about {
    padding-top: 2.625rem;
  }

  .p-about__inner {
    grid-template-columns: minmax(0, 22.5rem) minmax(0, 1fr);
    align-items: start;
  }

  .p-about__body {
    padding-top: 3.625rem;
  }

  .p-about__text {
    font-size: var(--fs-18);
    line-height: 2.4;
  }
}

/* ==========================================================================
   News
   ========================================================================== */
.p-news {
  padding-bottom: var(--section-space);
}

.p-news__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.25rem;
}

.p-news .c-news-list {
  margin-top: 1.875rem;
}

.p-news__more {
  display: flex;
  justify-content: flex-end;
  margin-top: 1.875rem;
}

.p-news__more .c-link-arrow {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

@media screen and (min-width: 768px) {
  .p-news .c-news-list {
    margin-top: 2.375rem;
  }

  .p-news__more {
    margin-top: 2.5rem;
  }
}

/* ==========================================================================
   Activity
   ========================================================================== */
.p-activity {
  padding-bottom: var(--section-space);
}

.p-activity__list {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.875rem;
}

.p-activity__card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border: 1px solid var(--color-border);
}

.p-activity__card--red { --overlay-color: var(--color-red); }
.p-activity__card--green { --overlay-color: var(--color-green); }
.p-activity__card--yellow { --overlay-color: var(--color-yellow); }

.p-activity__image {
  position: relative;
  aspect-ratio: 333 / 220;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
}

.p-activity__image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--overlay-color);
  mix-blend-mode: overlay;
}

.p-activity__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.p-activity__body {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  padding: 1.8125rem 1.875rem 2rem;
}

.p-activity__title {
  font-size: var(--fs-20);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-sm);
  line-height: var(--lh-normal);
}

.p-activity__text {
  margin-top: 0.625rem;
  line-height: 1.6;
}

.p-activity__link {
  align-self: flex-end;
  margin-top: auto;
  padding-top: 1.25rem;
  text-align: right;
}

@media screen and (min-width: 768px) {
  .p-activity__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    margin-top: 2.375rem;
  }

  .p-activity__card {
    min-height: 27.5rem;
  }
}

/* ==========================================================================
   Association
   ========================================================================== */
.p-association {
  padding-block: var(--section-space);
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.p-association__list {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.875rem;
}

.p-association__card {
  padding-bottom: 1.5625rem;
  text-align: center;
  background: var(--color-white);
  border-top: 1px solid var(--card-color);
  border-bottom: 1px solid var(--card-color);
}

.p-association__card--red { --card-color: var(--color-red); }
.p-association__card--green { --card-color: var(--color-green); }
.p-association__card--yellow { --card-color: var(--color-yellow); }

.p-association__tag {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 2.5rem;
  margin-top: -1px;
  font-size: var(--fs-14);
  font-weight: var(--fw-bold);
  line-height: var(--lh-normal);
  color: var(--color-white);
  background: var(--card-color);
}

.p-association__icon {
  width: 4.375rem;
  height: 4.375rem;
  margin: 0.625rem auto 0;
  object-fit: contain;
}

.p-association__title {
  margin-top: 0.8125rem;
  font-size: var(--fs-20);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-sm);
  line-height: var(--lh-normal);
  color: var(--card-color);
}

.p-association__text {
  margin-top: 1.25rem;
  padding-inline: 0.625rem;
  line-height: 1.6;
  text-align: left;
}

@media screen and (min-width: 768px) {
  .p-association__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-top: 2.375rem;
  }

  .p-association__card {
    min-height: 17.5rem;
  }
}

/* ==========================================================================
   Merit
   ========================================================================== */
.p-merit {
  padding-block: var(--section-space);
}

.p-merit__list {
  display: grid;
  margin-top: 1.875rem;
}

.p-merit__card {
  padding: 1.5rem 1.25rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top-width: 5px;
}

.p-merit__num {
  display: flex;
  align-items: center;
  gap: 0.3125rem;
  font-family: var(--font-en);
  font-size: var(--fs-30);
  font-weight: var(--fw-light);
  letter-spacing: var(--ls-xs);
  line-height: 1.1;
  color: var(--color-red);
}

.p-merit__num-label {
  font-size: var(--fs-18);
  font-weight: var(--fw-extralight);
  letter-spacing: 0;
  color: var(--color-text);
  text-decoration: underline;
  text-decoration-thickness: from-font;
  text-underline-position: from-font;
}

.p-merit__title {
  margin-top: 0.9375rem;
  font-size: var(--fs-20);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-sm);
  line-height: var(--lh-normal);
}

.p-merit__text {
  margin-top: 1.25rem;
  line-height: 1.6;
}

.p-merit__buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  margin-top: 2.375rem;
}

@media screen and (min-width: 768px) {
  .p-merit__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 2.375rem;
  }

  .p-merit__card {
    padding: 1.875rem;
  }
}

/* ==========================================================================
   Flow
   ========================================================================== */
.p-flow {
  padding-block: var(--section-space);
  color: var(--color-white);
  background:
    linear-gradient(rgba(17, 17, 17, 0.9), rgba(17, 17, 17, 0.63)),
    url("../images/top/flow-bg.jpg") no-repeat center / cover;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.p-flow__catch {
  margin-top: 1.25rem;
  font-size: var(--fs-20);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-sm);
  line-height: 1.6;
}

.p-flow__steps {
  display: grid;
  gap: 1.875rem;
  margin-top: 1.875rem;
}

.p-flow__step {
  position: relative;
}

.p-flow__num {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.3125rem;
  font-family: var(--font-en);
  font-size: var(--fs-30);
  font-weight: var(--fw-light);
  letter-spacing: var(--ls-xs);
  line-height: 1.1;
}

.p-flow__num::after {
  content: "";
  position: absolute;
  top: 1.0055rem;
  left: 5.8125rem;
  right: 0;
  max-width: 12.5rem;
  height: 0.3608rem;
  background: url("../images/top/flow-line.svg") no-repeat 0 0 / 100% 100%;
}

.p-flow__step--last .p-flow__num::after {
  top: 1.1563rem;
  height: 1px;
  background-image: url("../images/top/flow-line-last.svg");
}

.p-flow__num-label {
  font-size: var(--fs-18);
  font-weight: var(--fw-extralight);
  letter-spacing: 0;
}

.p-flow__title {
  margin-top: 1.1875rem;
  font-size: var(--fs-20);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-sm);
  line-height: var(--lh-normal);
}

.p-flow__text {
  margin-top: 0.625rem;
  line-height: 1.6;
}

.p-flow__buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2.5rem;
}

@media screen and (min-width: 768px) {
  .p-flow {
    width: calc(100% - 6.25rem);
    max-width: var(--container-wide);
    margin-inline: auto;
  }

  .p-flow__catch {
    margin-top: 1.75rem;
    font-size: var(--fs-30);
  }

  .p-flow__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 3.75rem;
    min-height: 8.75rem;
  }

  .p-flow__step:not(.p-flow__step--last)::after {
    content: "";
    position: absolute;
    top: 0;
    right: -2.875rem;
    width: 1.9361rem;
    height: 8.7631rem;
    background: url("../images/top/flow-sep.svg") no-repeat 0 0 / 100% 100%;
  }

  .p-flow__buttons {
    flex-direction: row;
    justify-content: flex-end;
    gap: 1.3125rem;
  }
}

/* ==========================================================================
   Sponsors
   ========================================================================== */
.p-sponsors {
  padding-block: var(--section-space);
}

.p-sponsors__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.625rem;
  margin-top: 1.875rem;
}

.p-sponsors__item {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 4.375rem;
  padding: 0.5rem;
  background: var(--color-white);
  border: 1px solid var(--color-border);
}

.p-sponsors__item img {
  width: 11.875rem;
  max-height: 100%;
  object-fit: contain;
}

.p-sponsors__item--trim img {
  outline: 1px solid var(--color-white);
  outline-offset: -1px;
}

.p-sponsors__item--thanks {
  position: relative;
  overflow: hidden;
  container-type: inline-size;
  background: none;
  border: 0;
}

.p-sponsors__thanks {
  position: absolute;
  top: 50%;
  left: 50%;
  font-family: var(--font-hand);
  font-size: 24.691cqw;
  line-height: var(--lh-normal);
  color: var(--color-gray-light);
  white-space: nowrap;
  transform: translate(calc(-50% + 8.23cqw), calc(-50% + 7cqw)) rotate(-7.48deg);
}

@media screen and (min-width: 768px) {
  .p-sponsors__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: 2.375rem;
  }

  .p-sponsors__item {
    height: 5.625rem;
    padding: 0.875rem;
  }
}

/* ==========================================================================
   70th anniversary badge（右下固定）
   ========================================================================== */
.p-anniv {
  position: fixed;
  right: 0.625rem;
  bottom: 0.625rem;
  z-index: 90;
  width: 15rem;
  height: 10rem;
  background: var(--color-gray-bg);
  box-shadow: var(--shadow-sm);
  transform: scale(0.6);
  transform-origin: right bottom;
}

.p-anniv__link {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  font-family: var(--font-serif);
  font-weight: var(--fw-bold);
}

.p-anniv__link > * {
  position: absolute;
}

.p-anniv__deco-left {
  top: 0;
  left: 0;
  width: 7.25rem;
}

.p-anniv__deco-right {
  right: 0;
  bottom: 0;
  width: 2.6875rem;
}

.p-anniv__logo {
  top: 0.5625rem;
  left: 7.4188rem;
  width: 6.4538rem;
}

.p-anniv__years {
  top: 3.1875rem;
  left: 0.625rem;
  padding: 0 0.3125rem 0.125rem;
  font-size: var(--fs-14);
  line-height: 1.193;
  white-space: nowrap;
  background: var(--color-gray-bg);
}

.p-anniv__num {
  font-size: var(--fs-20);
}

.p-anniv__num--green {
  color: var(--color-green);
}

.p-anniv__num--red {
  color: var(--color-red);
}

.p-anniv__text {
  top: 5.4375rem;
  left: 3.6875rem;
  font-size: var(--fs-16);
  letter-spacing: var(--ls-sm);
  line-height: 1.293;
  white-space: nowrap;
}

.p-anniv__text-sm {
  display: block;
  font-size: var(--fs-12);
}

.p-anniv__more {
  top: 8.125rem;
  left: 3.5625rem;
  display: flex;
  align-items: center;
  gap: 0.3125rem;
  height: 1.25rem;
  padding: 0.1875rem 0.625rem 0.25rem;
  font-size: var(--fs-10);
  letter-spacing: var(--ls-sm);
  line-height: 1.293;
  color: var(--color-white);
  white-space: nowrap;
  background: var(--color-text);
}

.p-anniv__more .c-arrow {
  width: 0.425rem;
  margin: -0.025rem;
}

@media (hover: hover) {
  .p-anniv__link:hover .c-arrow {
    transform: translateX(4px);
  }
}

.p-anniv__close {
  position: absolute;
  top: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
}

.p-anniv__close img {
  width: 0.9634rem;
}

@media screen and (min-width: 768px) {
  .p-anniv {
    right: 1.875rem;
    bottom: 1.875rem;
    transform: none;
  }
}