@charset "UTF-8";

/* =========================================================
   Variables & Reset
   ========================================================= */
:root {
  --color-black: #333333;
  --color-white: #ffffff;
  --color-gray: #e6e6f0;
  --color-gray-02: #b4b4b4;
  --color-gray-03: #403d3c;
  --color-primary: #3f3ce0;
  --color-sub: #ffff64;
  --color-sub-02: #ffff8f;
  --font-family-base: "Noto Sans JP", sans-serif;
  --font-family-accent: "Jost", sans-serif;
  --font-family-mincho: "Zen Old Mincho", serif;
  --content-width-sm: 1000px;
  --content-width: 1000px;
  --content-width-lg: 1200px;

  --z-index-back: -1;
  --z-index-default: 1;
  --z-index-deco: 100;
  --z-index-menu: 200;
  --z-index-modal: 300;
}

body {
  font-family: var(--font-family-base);
  color: var(--color-black);
}

@media screen and (min-width: 768px) {
  .u_br_sp {
    display: none;
  }
}

@media screen and (min-width: 1080px) {
  .u_br_tab {
    display: none;
  }
}

.u_br_pc {
  display: none;
}
@media screen and (min-width: 768px) {
  .u_br_pc {
    display: block;
  }
}

.l_container {
  width: min(92%, var(--content-width));
  margin-inline: auto;
}
.l_container-lg {
  width: min(92%, var(--content-width-lg));
  margin-inline: auto;
}

/* =========================================================
   Header
   ========================================================= */
.l_header {
  background-color: var(--color-white);
  padding: 16px 0;
}
.l_header_inner {
  display: flex;
  align-items: center;
}

.m_contact-btn_link {
  min-width: 180px;
}

/* =========================================================
   KV (Key Visual)
   ========================================================= */
.lp_kv {
  position: relative;
  width: 100%;
  min-height: 500px;
  height: 80vh;
  max-height: 720px;
  padding: 60px 0;
  background-image: url("../images/keyholder/kv.webp");
  background-size: cover;
  background-position: center bottom;
  background-repeat: no-repeat;
}
@media screen and (max-width: 767px) {
  .lp_kv {
    height: auto;

    background-position: center top;
  }
}

.lp_kv_inner {
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding-bottom: 60px;
}
@media screen and (min-width: 768px) {
  .lp_kv_inner {
    justify-content: flex-end;
    padding-bottom: 0;
  }
}

.lp_kv_content {
  max-width: 600px;
  position: relative;
  z-index: var(--z-index-default);
}

.lp_kv_product-name {
  text-shadow: 0 0 5px var(--color-white),1px 1px 10px var(--color-white), -1px -1px 10px var(--color-white), -1px 1px 10px var(--color-white), 1px -1px 10px var(--color-white), 0px 1px 10px var(--color-white), 0 -1px 10px var(--color-white), -1px 0 10px var(--color-white), 1px 0 10px var(--color-white);
  font-size: 44px;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--color-black);
  margin-bottom: 20px;
}
@media screen and (max-width: 767px) {
  .lp_kv_product-name {
    font-size: 32px;
    margin-bottom: 15px;
  }
}

.lp_kv_copy-main {
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 16px;
  line-height: 1.6;
}
@media screen and (max-width: 767px) {
  .lp_kv_copy-main {
    font-size: 18px;
  }
}
.lp_kv_copy-main__bg {
  background-color: var(--color-white);
  padding: 6px 16px;
  display: inline-block;
  color: var(--color-black);
}

.lp_kv_copy-sub {
  text-shadow: 0 0 5px var(--color-white),1px 1px 10px var(--color-white), -1px -1px 10px var(--color-white), -1px 1px 10px var(--color-white), 1px -1px 10px var(--color-white), 0px 1px 10px var(--color-white), 0 -1px 10px var(--color-white), -1px 0 10px var(--color-white), 1px 0 10px var(--color-white);
  font-size: 15px;
  line-height: 1.8;
  font-weight: 500;
  color: var(--color-black);
  margin: 0;
}
@media screen and (max-width: 767px) {
  .lp_kv_copy-sub {
    font-size: 14px;
  }
}

/* ターゲット層のホワイトボックス */
.lp_kv_target {
  position: absolute;
  bottom: 60px;
  right: 0;
  background-color: var(--color-white);
  padding: 20px 24px;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  z-index: 2;
}
@media screen and (max-width: 767px) {
  .lp_kv_target {
    position: relative;
    bottom: auto;
    right: auto;
    margin-top: 30px;
    width: max-content;
  }
}

.lp_kv_target-list {
  margin-bottom: 8px;
  font-weight: 500;
}

.lp_kv_target-item {
  font-size: 15px;

  position: relative;
  padding-left: 24px;
  margin-bottom: 6px;
  color: var(--color-black);
}
@media screen and (max-width: 767px) {
  .lp_kv_target-item {
    font-size: 14px;
  }
}
.lp_kv_target-item:last-child {
  margin-bottom: 0;
}

/* チェックボックスアイコン (SVG) */
.lp_kv_target-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 2px;
  width: 16px;
  height: 16px;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%23333333" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><rect x="3" y="3" width="18" height="18" rx="2" ry="2"></rect><polyline points="9 11 12 14 22 4"></polyline></svg>');
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
}

.lp_kv_target-suffix {
  font-size: 15px;
  display: block;
  color: var(--color-black);
}
@media screen and (max-width: 767px) {
  .lp_kv_target-suffix {
    font-size: 14px;
  }
}
/* =========================================================
   Concept Section
   ========================================================= */
.lp_concept {
  background-image: repeating-linear-gradient(
    -45deg,
    #d4e1fd,
    #d4e1fd 8px,
    #ffffff 4px,
    #ffffff 10px
  );
  padding: 80px 0 20px;
  overflow: hidden;
}

.m_concept-box {
  background-color: var(--color-primary);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 72px 20px;
  max-width: 720px;
  margin: 40px auto 0;
  box-shadow: 0 10px 20px rgba(59, 54, 204, 0.15);
}
@media screen and (min-width: 768px) {
  .m_concept-box {
    min-height: 220px;
    margin: 80px auto 0;
    padding: 56px 20px;
  }
}

.m_concept-box_visual {
  position: absolute;
  width: 60%;
  max-width: 200px;
  /* display: flex;
  justify-content: center;
  margin-bottom: 20px; */
  aspect-ratio: 1097/1476;
  top: 0;
  left: 0;
  translate: 0 -50%;
}
@media screen and (min-width: 1024px) {
  .m_concept-box_visual {
    max-width: 240px;
  }
}

.m_concept-box_content {
  color: var(--color-white);
  position: relative;
  z-index: var(--z-index-default);
  text-align: center;
}
@media screen and (min-width: 768px) {
  .m_concept-box_content {
    text-align: left;
  }
}

.m_concept-box_lead {
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 16px;
  line-height: 1.5;
  letter-spacing: 0.05em;
}
@media screen and (min-width: 768px) {
  .m_concept-box_lead {
    font-size: 20px;
    margin-bottom: 20px;
  }
}

.m_concept-box_lead-yellow {
  color: var(--color-sub);
}

.m_concept-box_desc {
  font-size: 14px;
  line-height: 1.8;
}
@media screen and (min-width: 768px) {
  .m_concept-box_desc {
    font-size: 15px;
  }
}

/* =========================================================
   Feature Section
   ========================================================= */
.lp_feature {
  background-color: var(--color-gray); /* 全体のグレーがかった背景 */
}
@media screen and (min-width: 768px) {
  .lp_feature {
  }
}

.lp_feature_header {
  margin-top: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
@media screen and (min-width: 768px) {
  .lp_feature_header {
    gap: 15px;
    flex-direction: row;
  }
}

.lp_feature_title-img {
  max-width: 320px;
  width: 100%;
}
@media screen and (min-width: 768px) {
  .lp_feature_title-img {
  }
}

.lp_feature_title-text {
  font-size: 18px;
  font-weight: bold;
  letter-spacing: 0.1em;
}
@media screen and (min-width: 768px) {
  .lp_feature_title-text {
    font-size: 24px;
  }
}

/* === ハーフフレームのレイアウトを移植 === */
.lp_feature_list {
  display: flex;
  flex-direction: column;
  box-shadow: 0 0 0 100vmax var(--color-white); /* 画面端まで白背景を伸ばす */
  clip-path: inset(0 -100vmax);
  gap: 20px;
  max-width: 720px; /* .l_container__xs 相当の幅 */
  background: var(--color-white);
  margin-inline: auto;
}
@media screen and (min-width: 768px) {
  .lp_feature_list {
    gap: 30px;
  }
}

.m_feature-card {
  margin-inline: auto;
  max-width: 320px;
  background-color: var(--color-gray); /* 全体背景と同じグレーがかった色 */
  box-shadow: 0 0 0 100vmax var(--color-gray); /* 画面端まで背景色を伸ばす */
  clip-path: inset(0 -100vmax);
  padding: 32px 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
  width: 100%;
}
@media screen and (min-width: 768px) {
  .m_feature-card {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 40px 0;
    max-width: none;
  }
}

.m_feature-card_info {
  color: var(--color-gray-03);
  flex: 1;
}

.m_feature-card_label {
  position: relative;
  display: flex;
  gap: 8px;
  align-items: baseline;
  padding-bottom: 5px;
  margin-bottom: 20px;
  min-width: 200px;
  font-weight: 300;
}
@media screen and (min-width: 768px) {
  .m_feature-card_label {
    min-width: 280px;
    margin-bottom: 30px;
  }
}

.m_feature-card_label::after {
  content: "";
  position: absolute;
  left: -80px;
  bottom: 0;
  width: 90%;
  height: 1px;
  background-color: var(--color-gray-03);
  z-index: 1;
}

.m_feature-card_label-text {
  font-size: 24px;

  letter-spacing: 0.1em;
  position: relative;
  z-index: var(--z-index-default);
  font-family: var(--font-family-accent);
}
@media screen and (min-width: 768px) {
  .m_feature-card_label-text {
    font-size: 32px;
  }
}

.m_feature-card_label-num {
  font-size: 56px;
  text-shadow:
    1px 1px 0 var(--color-gray-03),
    -1px -1px 0 var(--color-gray-03),
    -1px 1px 0 var(--color-gray-03),
    1px -1px 0 var(--color-gray-03),
    0px 1px 0 var(--color-gray-03),
    0-1px 0 var(--color-gray-03),
    -1px 0 0 var(--color-gray-03),
    1px 0 0 var(--color-gray-03);
  line-height: 1;
  color: var(--color-sub-02);

  position: relative;
  z-index: var(--z-index-default);
  font-family: var(--font-family-accent);
}
@media screen and (min-width: 768px) {
  .m_feature-card_label-num {
    font-size: 80px;
  }
}

.m_feature-card_title {
  font-size: 20px;
  font-weight: bold;
  line-height: 1.5;
  margin-bottom: 15px;
  letter-spacing: 0.05em;
}
@media screen and (min-width: 768px) {
  .m_feature-card_title {
    font-size: 24px;
    margin-bottom: 20px;
  }
}

.m_feature-card_desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-black);
}
@media screen and (min-width: 768px) {
  .m_feature-card_desc {
    font-size: 15px;
  }
}

.m_feature-card_img-wrapper {
  margin: 0;
}
@media screen and (min-width: 768px) {
  .m_feature-card_img-wrapper {
    width: 50%;
    box-shadow: 3px 3px 6px rgba(0, 0, 0, 0.1); /* ハーフフレームと同じ影 */
    border-radius: 8px;
  }
}

.m_feature-card_img {
  width: 100%;
  height: auto;
  vertical-align: bottom;
  border-radius: 8px;
}
/* =========================================================
   Utility
   ========================================================= */
.u_font-small {
  font-size: 12px;
  font-weight: normal;
  display: block;
  margin-top: 4px;
}
@media screen and (min-width: 768px) {
  .u_font-small {
    font-size: 14px;
  }
}

/* =========================================================
   Step Intro Section
   ========================================================= */
.lp_step-intro {
  background-color: var(--color-white);
  padding: 80px 0;
  position: relative;
  text-align: center;
}
@media screen and (min-width: 768px) {
  .lp_step-intro {
    padding: 100px 0 80px;
  }
}

.m_step-intro_title {
  font-size: 20px;
  font-weight: bold;
  color: var(--color-black);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
  position: relative;
}
@media screen and (min-width: 768px) {
  .m_step-intro_title {
    font-size: 28px;
    margin-bottom: 30px;
  }
}

.m_step-intro_title::before {
  content: "";
  width: 80px;
  position: absolute;
  background: url(../images/keyholder/03.webp) no-repeat center center/cover;
  aspect-ratio: 288/125;
  top: 0;
  left: 50%;
  translate: -50% -100%;
}
@media screen and (min-width: 768px) {
  .m_step-intro_title::before {
    left: 0;
    translate: 50% -100%;
    width: 100px;
  }
}

.m_step-intro_title-highlight {
  /* 黄色いマーカー線 */
  background: linear-gradient(transparent 60%, var(--color-sub) 60%);
  padding: 0 16px;
}

.m_step-intro_desc {
  font-size: 15px;
  font-weight: bold;
  color: var(--color-black);
}
@media screen and (min-width: 768px) {
  .m_step-intro_desc {
    font-size: 16px;
  }
}

/* =========================================================
   Step Slider Section
   ========================================================= */
.lp_step-slider {
  background-color: #bbded0;
  padding: 60px 0 80px;
  overflow: hidden;
}
@media screen and (min-width: 768px) {
  .lp_step-slider {
    padding: 100px 0 120px;
  }
}

/* Swiper Customize */
.js-step-swiper {
  width: 100%;
  padding-top: 50px; /* バッジがはみ出る分の余白 */
  padding-bottom: 60px; /* ページネーション用の余白 */
}

.swiper-slide.m_step-card {
  width: 90%;
  max-width: 280px;
  transition:
    transform 0.4s ease,
    opacity 0.4s ease;
  opacity: 0.7;
  transform: scale(0.85); /* 非アクティブ時は小さく */
}
@media screen and (min-width: 768px) {
  .swiper-slide.m_step-card {
    max-width: 340px;
  }
}

.swiper-slide-active.m_step-card {
  opacity: 1;
  transform: scale(1); /* 中央のスライドは等倍 */
}

.m_step-card_inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

/* バッジ (STEP 1, 2...) */
.m_step-card_badge {
  position: absolute;
  top: 0;
  left: 50%;
  font-family: var(--font-family-mincho);
  transform: translate(-50%, -50%);
  background-color: var(--color-primary);
  width: 70px;
  height: 70px;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  z-index: 2;
  box-shadow: 0 4px 10px rgba(59, 54, 204, 0.3);
}
@media screen and (min-width: 768px) {
  .m_step-card_badge {
    width: 80px;
    height: 80px;
  }
}

.m_step-card_badge-text {
  font-size: 12px;
  font-weight: bold;
  letter-spacing: 0.1em;
}

.m_step-card_badge-num {
  font-size: 24px;

  line-height: 1;
}
@media screen and (min-width: 768px) {
  .m_step-card_badge-num {
    font-size: 32px;
  }
}

.m_step-card_bg {
  background: var(--color-black);
  border-radius: 20px;
  padding: 10px;
  max-width: 240px;
  width: 100%;

  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

/* スマホ画面の画像ラッパー */
.m_step-card_img-wrapper {
  overflow: hidden;
  border-radius: 10px;
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 1;
  aspect-ratio: 560/1040;
}

.m_step-card_img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

/* テキストエリア */
.m_step-card_title {
  font-size: 18px;
  font-weight: bold;
  color: var(--color-black);
  margin: 30px 0 15px;
  letter-spacing: 0.05em;
  transition: font-size 0.4s ease;
}
.swiper-slide-active .m_step-card_title {
  font-size: 20px;
}
@media screen and (min-width: 768px) {
  .m_step-card_title {
    font-size: 20px;
  }
  .swiper-slide-active .m_step-card_title {
    font-size: 24px;
  }
}

.m_step-card_desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-black);
}
@media screen and (min-width: 768px) {
  .m_step-card_desc {
    font-size: 15px;
  }
}

/* Swiper UI */
.swiper-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  max-width: 500px;
  display: flex;
  justify-content: space-between;
  padding: 0 10px;
  z-index: 10;
}
@media screen and (min-width: 768px) {
  .swiper-button {
    max-width: 460px;
  }
}

.m_step-nav {
  position: static;
  color: var(--color-gray-03);
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-gray-03);
  border-radius: 50%;
  background-color: transparent;
  box-shadow: 0 0 5px var(--color-white);
}
.m_step-nav::after {
  font-size: 14px;
}
@media screen and (min-width: 768px) {
  .m_step-nav {
    width: 50px;
    height: 50px;
  }
  .m_step-nav::after {
    font-size: 18px;
  }
}

.m_step-pagination {
  bottom: 0;
}
.m_step-pagination .swiper-pagination-bullet {
  width: 12px;
  height: 12px;
  background-color: var(--color-white);
  opacity: 1;
  margin: 0 6px;
}
.m_step-pagination .swiper-pagination-bullet-active {
  background-color: var(--color-gray-02); /* アクティブ時のグレー */
}

/* =========================================================
   System Section
   ========================================================= */
.lp_system {
  position: relative;
  background-color: var(--color-white);
  padding: 60px 0 100px;
  overflow: hidden; /* 楕円背景のはみ出しを隠す */
}
@media screen and (min-width: 768px) {
  .lp_system {
    padding: 80px 0 140px;
  }
}

/* 背景のストライプ楕円（装飾） */
.lp_system::before {
  content: "";
  position: absolute;
  top: 180px; /* 写真の途中から開始 */
  left: 50%;
  transform: translateX(-50%);
  width: 250%;
  height: 1200px;
  border-radius: 50%;
  background-image: repeating-linear-gradient(
    -45deg,
    #e6e6ef,
    #e6e6ef 6px,
    #ffffff 6px,
    #ffffff 8px
  );
  z-index: 1;
}
@media screen and (min-width: 768px) {
  .lp_system::before {
    top: 220px;
    width: 150%; /* PC時は横幅を抑えめにして緩やかなカーブに */
    height: 60%;
  }
}

.lp_system_container {
  position: relative;
  z-index: var(--z-index-default); /* 背景の上にコンテンツを配置 */
}

/* 上部のイメージ写真（装飾として擬似要素で実装） */
.lp_system_visual {
  width: 100%;
  max-width: 500px;
  aspect-ratio: 16 / 10;
  margin: 0 auto 40px;
  position: relative;
}
.lp_system_visual {
  content: "";
}
@media screen and (min-width: 768px) {
  .lp_system_visual {
    margin: 0 auto 60px;
  }
}

.lp_system_header {
  text-align: center;
  margin-bottom: 80px;
}

.lp_system_title {
  font-size: 20px;
  font-weight: bold;
  color: var(--color-black);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}
@media screen and (min-width: 768px) {
  .lp_system_title {
    font-size: 26px;
  }
}
/* タイトルの白背景部分 */
.lp_system_title-inner {
  background-color: var(--color-white);
  padding: 4px 10px;
  display: inline-block;
}

.lp_system_desc {
  font-size: 14px;
  font-weight: bold;
  line-height: 1.8;
  color: var(--color-black);
}
@media screen and (min-width: 768px) {
  .lp_system_desc {
    font-size: 16px;
  }
}

/* --- ステップカードのリスト --- */
.lp_system_step-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 60px;
}
@media screen and (min-width: 768px) {
  .lp_system_step-list {
    flex-direction: row;
    justify-content: center;
    align-items: stretch;
    gap: 15px;
  }
}

.m_sys-card {
  position: relative;
  width: 100%;
  max-width: 280px;
}
@media screen and (min-width: 768px) {
  .m_sys-card {
    flex: 1;
    max-width: 300px;
  }
}

/* カード上部「step 1」 */
.m_sys-card_head {
  font-family: var(--font-family-accent);
  position: absolute;
  top: 0;
  left: 10px;
  translate: 0 -80%;
  color: var(--color-primary); /* 青色 */
  display: flex;
  align-items: baseline;
  z-index: 2;
}
@media screen and (min-width: 768px) {
  .m_sys-card_head {
    left: 20px;
  }
}
.m_sys-card_head-sub {
  font-size: 28px;
  font-weight: 600;
}
.m_sys-card_head-num {
  font-size: 64px;
  font-weight: 500;
  line-height: 0.8;
}

/* カード本体 */
.m_sys-card_body {
  background-color: var(--color-primary); /* 青色背景 */
  color: var(--color-white);
  border-radius: 12px;
  padding: 40px 15px 30px;
  text-align: center;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 10px 20px rgba(59, 54, 204, 0.2);
}

.m_sys-card_title {
  font-size: 16px;
  font-weight: bold;
  line-height: 1.5;
  margin-bottom: 25px;
  letter-spacing: 0.05em;
  min-height: 48px;
}
@media screen and (min-width: 768px) {
  .m_sys-card_title {
    font-size: 18px;
    min-height: 54px;
  }
}

/* カード内のアイコン（装飾として擬似要素で実装） */
.m_sys-card_icon {
  width: 80px;
  height: 80px;
  margin-bottom: 25px;
  position: relative;
}

.m_sys-card_icon-img {
  display: block;
  width: 100%;
  height: 100%;
}


.m_sys-card_desc {
  font-size: 13px;
  line-height: 1.6;
  font-weight: normal;
}
@media screen and (min-width: 768px) {
  .m_sys-card_desc {
    font-size: 14px;
  }
}

/* カード間の矢印（PC時のみ表示） */
.m_sys-arrow {
  display: none;
}
@media screen and (min-width: 768px) {
  .m_sys-arrow {
    display: block;
    width: 16px;
    height: 16px;
    align-self: center;
    border-top: 3px solid var(--color-primary);
    border-right: 3px solid var(--color-primary);
    transform: rotate(45deg);
    margin-top: 40px; /* カード本体の中心に合うように調整 */
  }
}

/* =========================================================
   Usecase Section
   ========================================================= */
.lp_usecase {
  position: relative;
  background-color: #d1e3f8; /* デザインに合わせた水色背景 */
  padding: 60px 0 80px;

  max-width: var(--content-width-lg);
  margin-inline: auto;
}
@media screen and (min-width: 768px) {
  .lp_usecase {
    padding: 100px 0 120px;
  }
}
@media screen and (min-width: 1240px) {
  .lp_usecase {
    border-radius: 20px;
    margin-bottom: 60px;
  }
}

/* 右上の装飾写真（擬似要素で実装） */
.lp_usecase::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  translate: 0 -50%;
  width: 220px;
  aspect-ratio: 756/977;
  background: url("../images/keyholder/04.webp") no-repeat right top;
  background-size: contain;
  z-index: var(--z-index-deco);
  pointer-events: none;
}
@media screen and (min-width: 768px) {
  .lp_usecase::before {
    translate: 0 -10%;
    width: 320px;
  }
}

.lp_usecase_header {
  margin-bottom: 40px;
  max-width: 400px;
  margin-inline: auto;
}
@media screen and (min-width: 768px) {
  .lp_usecase_header {
    margin-bottom: 60px;
    max-width: 640px;
  }
}

.lp_usecase_title {
  font-size: 20px;
  font-weight: bold;
  color: var(--color-black);
  margin-bottom: 15px;
  letter-spacing: 0.05em;
  line-height: 1.4;
}
@media screen and (min-width: 768px) {
  .lp_usecase_title {
    font-size: 28px;
    margin-bottom: 20px;
  }
}

.lp_usecase_desc {
  font-size: 13px;
  font-weight: bold;
  line-height: 1.8;
  color: var(--color-black);
}
@media screen and (min-width: 768px) {
  .lp_usecase_desc {
    font-size: 15px;
  }
}

/* --- ユースケース カードリスト --- */
.lp_usecase_list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 320px;
  margin-inline: auto;
}
@media screen and (min-width: 768px) {
  .lp_usecase_list {
    gap: 30px;
    max-width: none;
  }
}

.m_usecase-card {
  background-color: var(--color-white);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}
@media screen and (min-width: 768px) {
  .m_usecase-card {
    flex-direction: row;
    align-items: stretch;
  }
}

.m_usecase-card_img-wrapper {
  width: 100%;
}
@media screen and (min-width: 768px) {
  .m_usecase-card_img-wrapper {
    width: 35%;
    flex-shrink: 0;
  }
}

.m_usecase-card_img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.m_usecase-card_body {
  padding: 25px 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
@media screen and (min-width: 768px) {
  .m_usecase-card_body {
    padding: 30px 40px;
    width: 65%;
  }
}

.m_usecase-card_title {
  font-size: 18px;
  font-weight: bold;
  color: var(--color-black);
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}
@media screen and (min-width: 768px) {
  .m_usecase-card_title {
    font-size: 22px;
    margin-bottom: 15px;
  }
}

.m_usecase-card_subtitle {
  font-size: 13px;
  font-weight: bold;
  color: var(--color-black);
  margin-bottom: 15px;
  display: inline-block;
  border-bottom: 1px solid var(--color-black);
  padding-bottom: 4px;
  align-self: flex-start;
}
@media screen and (min-width: 768px) {
  .m_usecase-card_subtitle {
    font-size: 15px;
    margin-bottom: 20px;
  }
}

.m_usecase-card_text {
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-black);
}
@media screen and (min-width: 768px) {
  .m_usecase-card_text {
    font-size: 14px;
  }
}

/* =========================================================
   Shape Section
   ========================================================= */
.lp_shape {
  position: relative;
  background-color: #d8d8d8; /* グレー背景 */
  padding: 80px 0;
  z-index: 1;
}
@media screen and (min-width: 768px) {
  .lp_shape {
    padding: 100px 0;
  }
}

.lp_shape_container {
  position: relative;
}
/* 右上の装飾写真（犬のキーホルダー）を擬似要素で実装 */
.lp_shape_container::before {
  content: "";
  position: absolute;
  width: 150px;
  aspect-ratio: 476 / 657;
  background: url("../images/keyholder/32.webp") no-repeat center center;
  background-size: cover;
  z-index: var(--z-index-deco);
  pointer-events: none;
  right: 0;
  top: 0;
  translate: 10% -100%;
}
@media screen and (min-width: 768px) {
  .lp_shape_container::before {
    width: 200px;
    translate: -20% -100%;
  }
}

/* タイトルをパネルに被せる */
.lp_shape_header {
  position: absolute;
  top: -45px;
  left: 20px;
  z-index: 2;
}
@media screen and (min-width: 768px) {
  .lp_shape_header {
    top: -60px;
    left: 40px;
  }
}

.lp_shape_title {
  font-size: 56px;
  font-weight: bold;
  line-height: 1;
  font-family: var(--font-family-accent);
  color: var(--color-black);
  letter-spacing: 0.05em;
}
@media screen and (min-width: 768px) {
  .lp_shape_title {
    font-size: 72px;
  }
}

.lp_shape_subtitle {
  font-size: 14px;
  font-weight: bold;
  color: #9c8a78; /* Subカラー */
  letter-spacing: 0.05em;
  margin-top: 5px;
}
@media screen and (min-width: 768px) {
  .lp_shape_subtitle {
    font-size: 16px;
  }
}

.m_shape-panel {
  position: relative;
  z-index: 1;
  background-color: var(--color-white);
  border-radius: 16px;
  padding: 80px 20px 40px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
}
@media screen and (min-width: 768px) {
  .m_shape-panel {
    padding: 100px 40px 60px;
  }
}

.m_shape-panel_lead {
  text-align: center;
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 40px;
  letter-spacing: 0.05em;
  color: var(--color-black);
}
@media screen and (min-width: 768px) {
  .m_shape-panel_lead {
    font-size: 22px;
    margin-bottom: 60px;
  }
}

/* カードリスト */
.m_shape-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
  max-width: 800px;
  margin: 0 auto;
}
@media screen and (min-width: 768px) {
  .m_shape-list {
    flex-direction: row;
    justify-content: center;
    gap: 30px;
  }
}

.m_shape-card {
  text-align: center;
  flex: 1;
}

.m_shape-card_img-wrapper {
  max-width: 320px;
  margin-inline: auto;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 3px 3px 6px #f4f0ea;
  margin-bottom: 8px;
}
@media screen and (min-width: 768px) {
  .m_shape-card_img-wrapper {
    max-width: none;
  }
}

.m_shape-card_img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.m_shape-card_title {
  font-size: 20px;
  font-weight: bold;
  letter-spacing: 0.05em;
  color: var(--color-black);
  margin-bottom: 15px;
}
@media screen and (min-width: 768px) {
  .m_shape-card_title {
    font-size: 24px;
    margin-bottom: 20px;
  }
}

.m_shape-card_spec {
  font-weight: bold;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-black);
  display: inline-block;
  text-align: left; /* サイズのテキストは左揃えの方が見やすいため調整 */
}
@media screen and (min-width: 768px) {
  .m_shape-card_spec {
    font-size: 15px;
  }
}

/* =========================================================
   Message Section
   ========================================================= */
.lp_message {
  position: relative;
  /* ピンクと白の斜めストライプ背景 */
  background-image: repeating-linear-gradient(
    -45deg,
    #fae3e9,
    #fae3e9 8px,
    #ffffff 2px,
    #ffffff 10px
  );
  padding: 160px 0 100px;
  border-radius: 0 0 50% 50% / 0 0 100px 100px;
}
@media screen and (min-width: 768px) {
  .lp_message {
    padding: 100px 0 120px;
    border-radius: 0 0 50% 50% / 0 0 200px 200px;
  }
}

.lp_message_container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
}
@media screen and (min-width: 768px) {
  .lp_message_container {
    flex-direction: row;
    justify-content: center;
    align-items: center;
    gap: 0;
  }
}

/* 左側の画像エリア */
.lp_message_visual {
  width: 60%;

  aspect-ratio: 686/858;
  max-width: 200px;
  text-align: center;
  position: absolute;
  left: 0;
  top: 0;
  translate: 0% -45%;
  z-index: var(--z-index-deco);
}
@media screen and (min-width: 768px) {
  .lp_message_visual {
    width: 40%;

    translate: 10% -50%;
  }
}
@media screen and (min-width: 1024px) {
  .lp_message_visual {
    position: static;
    translate: 0;
    aspect-ratio: 484/1155;
  }
}

.lp_message_img {
  width: 100%;
  height: auto;
  display: block;
}

/* 右側のテキストエリア */
.lp_message_content {
  width: 100%;
  text-align: center;
}
@media screen and (min-width: 768px) {
  .lp_message_content {
    width: 60%;
  }
}

.lp_message_text {
  font-size: 14px;
  line-height: 2;
  color: var(--color-black);
  margin-bottom: 30px;
  font-weight: 500;
}
.lp_message_text:last-child {
  margin-bottom: 0;
}
@media screen and (min-width: 768px) {
  .lp_message_text {
    font-size: 16px;
    margin-bottom: 40px;
  }
}

/* 少し大きめのテキスト部分 */
.lp_message_text__large {
  font-size: 16px;
}
@media screen and (min-width: 768px) {
  .lp_message_text__large {
    font-size: 20px;
  }
}

/* 黄色いマーカー線 */
.lp_message_highlight {
  background: linear-gradient(transparent 50%, var(--color-sub) 50%);
  font-weight: bold;
  padding: 0 4px;
}

/* =========================================================
   CTA Section
   ========================================================= */
.lp_cta {
  background-color: var(--color-white);
  padding: 60px 0;
  text-align: center;
}
@media screen and (min-width: 768px) {
  .lp_cta {
    padding: 80px 0 100px;
  }
}

.lp_cta_text {
  font-size: 14px;
  line-height: 2;
  color: var(--color-black);
  margin-bottom: 30px;
  font-weight: bold;
}
@media screen and (min-width: 768px) {
  .lp_cta_text {
    font-size: 16px;
    margin-bottom: 40px;
  }
}

.m_cta-btn-wrap {
  margin-inline: auto;
  max-width: 320px;
}

.m_cta-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 16px;
  border-radius: 50px;
  text-decoration: none;
  font-size: 16px;
  font-weight: bold;
  letter-spacing: 0.05em;
  transition: all 0.3s ease;
}
@media screen and (min-width: 768px) {
  .m_cta-btn {
    font-size: 18px;
    padding: 16px 20px;
  }
}
.m_cta-btn-wrap:hover .m_cta-btn {
  scale: 0.95;
}

/* ボタン右側の三角アイコン */
.m_cta-btn_icon {
  display: inline-block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 6px 0 6px 10px;
  border-color: transparent transparent transparent var(--color-white);
  margin-left: 8px;
}
/* =========================================================
   Banner Section
   ========================================================= */
.lp_banner {
  width: 100%;
}

.m_banner {
  position: relative;
  width: 100%;

  margin: 0 auto;
  height: 250px;
  display: flex;
  align-items: flex-end; /* テキストを下部に配置 */
  padding: 30px;
  box-sizing: border-box;
}
@media screen and (min-width: 768px) {
  .m_banner {
    height: 350px;
    padding: 40px 60px;
  }
}

/* 擬似要素で画像を設定 */
.m_banner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("../images/keyholder/13.webp") no-repeat center center;
  background-size: cover;
  z-index: 1;
}

.m_banner_text {
  position: absolute;
  top: 20%;
  left: 10%; /* 左端から少し余白を取る */
  transform: translateY(-50%);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--color-black);
  margin: 0;
  text-shadow: 0 0 5px var(--color-white),1px 1px 10px var(--color-white), -1px -1px 10px var(--color-white), -1px 1px 10px var(--color-white), 1px -1px 10px var(--color-white), 0px 1px 10px var(--color-white), 0 -1px 10px var(--color-white), -1px 0 10px var(--color-white), 1px 0 10px var(--color-white);
  z-index: var(--z-index-default);
}
@media screen and (min-width: 768px) {
  .m_banner_text {
    font-size: 40px;
    top: 50%;
  }
}

/* =========================================================
   Fixed Button (追従ボタン)
   ========================================================= */
.m_fixed-btn {
  position: fixed;
  /* SP時は画面下部に配置 */
  bottom: 20px;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  text-decoration: none;

  transform-origin: right bottom;
  transition: opacity 0.3s ease;
}
@media screen and (min-width: 768px) {
  .m_fixed-btn {
    bottom: 40px;
  }
}

.m_fixed-btn:hover {
  opacity: 0.85;
}

.m_fixed-btn::before {
  content: "";
  aspect-ratio: 562 /679;
  background: url(../images/keyholder/01.webp) no-repeat center center/cover;
  width: 120px;
  position: absolute;
  z-index: 2; /* 緑の帯より手前に出す */
  left: 0;
  top: 50%;
  translate: -50% -50%;
}
@media screen and (min-width: 768px) {
  .m_fixed-btn::before {
    width: 140px;
  }
}

.m_fixed-btn_img {
  height: auto;
  display: block;
}

/* 緑色のボタン帯部分 */
.m_fixed-btn_body {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 12px 20px 12px 30px;
  border-radius: 8px 0 0 8px; /* 左側の上下だけ角丸にする */
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}
@media screen and (min-width: 768px) {
  .m_fixed-btn_body {
    padding: 16px 30px 16px 40px;
  }
}

.m_fixed-btn_text {
  font-size: 13px;
  font-weight: bold;
  line-height: 1.5;
  margin: 0;
  letter-spacing: 0.05em;
}
@media screen and (min-width: 768px) {
  .m_fixed-btn_text {
    font-size: 16px;
  }
}