/* =============================================
  zero-carbon-system 炭削くん ページ専用CSS
============================================= */
.tk_main {
  --tk-navy: #003a63;
  --tk-teal: #0077bb;
  --tk-teal-light: #eaf5fb;
  --tk-green: #0077bb;
  --tk-blue: #0077bb;
  --tk-blue-dark: #005a91;
  --tk-blue-light: #eaf5fb;
  --tk-pink: #f60;
  --tk-border: #dce8f0;
  background: #fff;
}
.tk_main img { max-width: 100%; }

/* ---------- 共通 ---------- */
.tk_section {
  max-width: 1184px;
  margin: 0 auto 100px;
  padding: 0 24px;
}
.tk_bar_ttl {
  background: var(--tk-teal);
  color: #fff;
  font-size: 2.2rem;
  font-weight: 700;
  padding: 15px 20px;
  margin: 0 0 24px;
  border-radius: 4px;
}
.tk_center_ttl {
  text-align: center;
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--tk-blue);
  margin: 0 0 30px;
}

/* ---------- Hero ---------- */
.tk_hero {
  display: flex;
  width: 100%;
  height: 400px;
  margin: 0;
  padding: 0;
}

.tk_hero_left {
  flex: 0 0 42%;
  background: linear-gradient(135deg, var(--tk-navy) 0%, var(--tk-blue) 100%);
  color: #fff;
  padding: 40px 60px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.tk_hero_en {
  font-size: 4rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  margin: 0 0 5px;
}

.tk_hero_ja {
  font-size: 6rem;
  font-weight: 700;
  margin: 0 0 22px;
}

.tk_hero_desc {
  max-width: 450px;
  font-size: 2.4rem;
  line-height: 1.4;
  margin: 0 auto;
  font-weight: 600;
}

.tk_hero_right {
  flex: 1;
  height: 400px;
  position: relative;
  overflow: hidden;
}

.tk_hero_right img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
}

/* ---------- タブレット ---------- */
@media screen and (min-width: 768px) and (max-width: 1024px) {
  .tk_hero {
    height: auto;
    min-height: 320px;
  }
  .tk_hero_left {
    padding: 32px 24px;
  }
  .tk_hero_en {
    font-size: 2.4rem;
  }
  .tk_hero_ja {
    font-size: 3.6rem;
    margin: 0 0 16px;
  }
  .tk_hero_desc {
    max-width: 100%;
    font-size: 1.6rem;
  }
  .tk_hero_right {
    height: auto;
  }
}

/* ---------- スマホ ---------- */
@media screen and (max-width: 767px) {

  .tk_hero {
    flex-direction: column;
    height: auto;
  }

  .tk_hero_left {
    width: 100%;
    flex: none;
    padding: 24px 20px;
  }

  .tk_hero_en {
    font-size: 1.6rem;
    margin: 0 0 4px;
  }

  .tk_hero_ja {
    font-size: 2.6rem;
    margin: 0 0 12px;
  }

  .tk_hero_desc {
    max-width: 100%;
    font-size: 1.3rem;
    line-height: 1.6;
  }

  .tk_hero_right {
    width: 100%;
    height: 160px;
    flex: none;
  }

  .tk_hero_right img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

}

/* ---------- 導入実績バナー ---------- */
.tk_users_banner {
  text-align: center;
  color: #F60;
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.6;
  margin: 26px auto 20px;
  padding: 20px 20px;
}
@media screen and (max-width: 599px) {
  .tk_users_banner { 
    font-size: 2.0rem; 
    padding: 16px 20px;
    text-align: left;
  }
}

/* ---------- CTAボタン ---------- */
.tk_cta {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin: 50px auto 70px;
  padding: 0 20px;
}
.tk_cta_btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 30px 56px;
  border-radius: 8px;
  font-size: 2.2rem;
  font-weight: 800;
  text-decoration: none;
  color: #fff;
  background: var(--tk-blue);
  transition: transform .2s ease;
}
.tk_cta_btn:hover {
  transform: translateY(-4px);
}
.tk_cta_btn.tk_cta_btn-accent {
  background: #00bfff;
}
@media screen and (max-width: 599px) {
  .tk_cta_btn { font-size: 1.8rem; padding: 22px 28px; width: 100%; }
}

.tk_recommend_ttl {
  position: relative;
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--tk-navy);
  letter-spacing: 0.02em;
  padding-bottom: 22px;
  margin-bottom: 46px;
}
.tk_recommend_ttl::before {
  content: "";
  display: block;
  width: 64px;
  height: 5px;
  background: linear-gradient(90deg, var(--tk-pink) 0%, #ff8c3a 100%);
  border-radius: 3px;
  margin: 0 auto 18px;
}
.tk_recommend_ttl::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 120px;
  height: 3px;
  background: var(--tk-border);
  border-radius: 2px;
}
@media screen and (max-width: 599px) {
  .tk_recommend_ttl { font-size: 2.4rem; }
}

/* ---------- おすすめリスト ---------- */
.tk_recommend_list {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: 900px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.tk_recommend_list li {
  display: flex;
  align-items: center;
  gap: 24px;
  background: #fff;
  border-left: 6px solid var(--tk-pink);
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0,58,99,0.1);
  padding: 24px 28px;
  font-size: 2.0rem;
  font-weight: 700;
  line-height: 1.8;
  color: var(--tk-navy);
  margin-bottom: 0;
  transition: transform .2s ease, box-shadow .2s ease;
}
.tk_recommend_check {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--tk-pink) 0%, #ff8c3a 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 14px rgba(255,102,0,0.35);
}
.tk_recommend_check svg { width: 22px; height: 22px; }
.tk_recommend_list mark {
  background: #fff59d;
  color: inherit;
  padding: 0 4px;
  font-weight: 700;
}
@media screen and (max-width: 599px) {
  .tk_recommend_list li { flex-direction: row; font-size: 1.5rem; padding: 20px; gap: 16px; }
}


/* ---------- NEWS ---------- */
.tk_news_list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.tk_news_item {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 14px 0;
  border-bottom: 1px solid var(--tk-border);
  font-size: 1.8rem;
}
.tk_news_date {
  flex: none;
  width: 140px;
}
.tk_news_tag {
  flex: none;
  background: #fff1e0;
  color: var(--tk-pink);
  font-size: 1.2rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 3px;
}
.tk_news_txt {
  flex: 1 1 auto;
}
.tk_news_more {
  text-align: right;
  margin-top: 16px;
}
.tk_news_more a {
  font-size: 1.4rem;
  color: var(--tk-blue);
  text-decoration: none;
}
@media screen and (max-width: 767px) {

  .tk_news_date {
    width: auto;
    white-space: nowrap;
  }

}

/* ---------- 企業を取り巻く環境 ---------- */
.tk_env_item {
  display: flex;
  align-items: center;
  gap: 32px;
  background: var(--tk-teal-light);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
}
.tk_env_item img {
  flex: none;
  width: 220px;
  border-radius: 6px;
}
.tk_env_item p {
  font-size: 1.8rem;
  line-height: 1.6;
  margin: 0;
}
@media screen and (max-width: 767px) {
  .tk_env_item { flex-direction: column; }
  .tk_env_item img { width: 100%; }
}

/* ---------- サービス概要 ---------- */
.tk_service_bg {
  background-color: #cfe6f5;
  background-image: repeating-linear-gradient(
    -45deg,
    rgba(255,255,255,0.6) 0,
    rgba(255,255,255,0.6) 3px,
    transparent 3px,
    transparent 14px
  );
  padding: 50px 0 60px;
  margin-bottom: 50px;
}
.tk_service_lead {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.8;
  color: #222;
  margin: 0 0 40px;
}
@media screen and (max-width: 599px) {
  .tk_service_lead { 
  text-align: left;
  }
}

.tk_point_grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 50px 30px;
}
.tk_point_card {
  position: relative;
  background: #fff;
  border-radius: 14px;
  padding: 44px 24px 32px;
  text-align: center;
  box-shadow: 0 10px 28px rgba(0,58,99,0.12);
  border-top: 6px solid var(--tk-pink);
  transition: transform .2s ease, box-shadow .2s ease;
}

.tk_point_num {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--tk-pink) 0%, #ff8c3a 100%);
  color: #fff;
  font-weight: 700;
  margin: -68px auto 18px;
  box-shadow: 0 8px 18px rgba(255,102,0,0.35);
  border: 4px solid #fff;
}
.tk_point_num span { font-size: 1.1rem; letter-spacing: 0.05em; }
.tk_point_num b { font-size: 2.6rem; line-height: 1; }
.tk_point_ttl {
  font-size: 2.0rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--tk-navy);
  margin: 0 0 20px;
  min-height: 88px;
}
.tk_point_img {
  width: 100%;
  border-radius: 8px;
  margin-bottom: 18px;
}
.tk_point_txt {
  font-size: 1.8rem;
  line-height: 1.6;
  text-align: left;
  margin: 0;
}
@media screen and (max-width: 900px) {
  .tk_point_grid { grid-template-columns: 1fr; }
  .tk_point_ttl { min-height: auto; }
}


/* ---------- ご利用の流れ ---------- */
.tk_step_grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 50px 24px;
}
.tk_step_card {
  position: relative;
  text-align: center;
  background: #fff;
  border-radius: 14px;
  padding: 44px 20px 28px;
  box-shadow: 0 10px 28px rgba(0,58,99,0.12);
  border-top: 6px solid var(--tk-teal);
  transition: transform .2s ease, box-shadow .2s ease;
}
.tk_step_card:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -20px;
  width: 0;
  height: 0;
  border-top: 10px solid transparent;
  border-bottom: 10px solid transparent;
  border-left: 14px solid var(--tk-teal);
  transform: translateY(-50%);
}
.tk_step_badge {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 92px;
  height: 92px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--tk-navy) 0%, var(--tk-teal) 100%);
  color: #fff;
  font-weight: 700;
  margin: -68px auto 18px;
  box-shadow: 0 8px 18px rgba(0,58,99,0.35);
  border: 4px solid #fff;
}
.tk_step_badge span { font-size: 1.1rem; letter-spacing: 0.05em; }
.tk_step_badge b { font-size: 2.6rem; line-height: 1; }
.tk_step_img {
  width: 100%;
  border-radius: 8px;
  margin-bottom: 16px;
  background: var(--tk-teal-light);
}
.tk_step_ttl {
  font-size: 2.0rem;
  font-weight: 700;
  color: var(--tk-navy);
  margin: 0 0 12px;
}
.tk_step_txt {
  font-size: 1.8rem;
  line-height: 1.6;
  margin: 0;
  text-align: left;
}
@media screen and (max-width: 900px) {
  .tk_step_grid { grid-template-columns: repeat(2, 1fr); gap: 60px 24px; }
  .tk_step_card:not(:last-child)::after { display: none; }
}
@media screen and (max-width: 599px) {
  .tk_step_grid { grid-template-columns: 1fr; }
}


/* ---------- ご利用料金 ---------- */
.tk_price_bg {
  background: #fff2e6;
  padding: 50px 0;
  margin-bottom: 50px;
}
.tk_price_note {
  font-size: 1.8rem;
  max-width: 700px;
  margin: 0 0 24px;
  text-align: center; 
}
.tk_price_table {
  width: 100%;
  max-width: 700px;
  margin: 0 auto 16px;
  border-collapse: collapse;
  background: #fff;
}
.tk_price_table th,
.tk_price_table td {
  border: 1px solid var(--tk-border);
  padding: 16px;
  font-size: 2.0rem;
  text-align: center;
}
@media screen and (max-width: 599px) {
  .tk_price_table th,
  .tk_price_table td { 
  font-size: 1.7rem;
  }
}

.tk_price_table th {
  background: var(--tk-teal);
  color: #fff;
  font-weight: 700;
}
.tk_price_kome {
  max-width: 700px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
  font-size: 1.6rem;
  line-height: 1.4;
}


/* ---------- お役立ち資料 ---------- */
.tk_doc_wrap {
  display: flex;
  gap: 24px;
  align-items: stretch;
  flex-wrap: wrap;
  justify-content: center;
}

.tk_doc_card {
  position: relative;
  width: 380px;
  flex: 0 0 380px;
  background: #fff;
  border: none;
  border-radius: 14px;
  padding: 32px 28px 84px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  box-shadow: 0 10px 28px rgba(0,58,99,0.12);
  border-top: 6px solid var(--tk-pink);
  transition: transform .2s ease, box-shadow .2s ease;
  text-decoration: none;
}

.tk_doc_card::after {
  content: "資料をみる ＞";
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  background: var(--tk-pink);
  color: #fff;
  font-size: 1.4rem;
  font-weight: 700;
  padding: 12px 28px;
  border-radius: 999px;
  white-space: nowrap;
  transition: background .2s ease;
}

.tk_doc_card img {
  width: 100%;
  max-width: 340px;
  border-radius: 8px;
  margin-bottom: 20px;
}
.tk_doc_card p {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--tk-navy);
  line-height: 1.6;
  margin: 0;
}
.tk_doc_placeholder {
  width: 100%;
  max-width: 240px;
  height: 160px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--tk-teal-light) 0%, #d7ecf7 100%);
  border: 2px dashed var(--tk-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tk-blue-dark);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 20px;
}
.tk_doc_sub {
  font-size: 1.3rem;
  color: #555;
  font-weight: 400;
  line-height: 1.7;
  margin-top: 10px;
}
@media screen and (max-width: 767px) {
  .tk_doc_wrap { flex-direction: column; }
}

/* ---------- スマホ ---------- */
@media screen and (max-width: 767px) {
  .tk_doc_wrap {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }

  .tk_doc_card {
    width: 100%;
    max-width: 380px;
    flex: 0 1 auto;
    box-sizing: border-box;
  }

  .tk_doc_card img {
    width: 100%;
    max-width: 100%;
  }
}

/* ---------- 5分でわかる動画 ---------- */
.tk_video_wrap {
  display: block;
  max-width: 640px;
  margin: 0 auto;
  position: relative;
}
.tk_video_wrap img {
  width: 50%;
  border-radius: 6px;
  display: block;
  margin: 0 auto;
}
@media screen and (max-width: 599px) {
  .tk_video_wrap img { 
  width: 100%;
  }
}

.tk_video_play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
}
.tk_video_play svg { width: 26px; height: 26px; color: #fff; }

/* アコーディオン コンテンツ バック水色（共通CSSのセレクタが .l_main.m_pages 限定のため、tk_mainページ用に個別定義） */
.tk_main .m_bdr_blr_pastel_blue {
  border-radius: 5px;
  background: #f4f9ff;
  padding: 2.3rem 2.5rem;
  margin-top: 10px;
  box-sizing: border-box;
}

/* ---------- よくあるご質問 ---------- */
.tk_faq_list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.tk_faq_item {
  background: var(--tk-teal-light);
  border-radius: 8px;
  padding: 20px 24px;
  margin-bottom: 16px;
}
.tk_faq_q {
  font-size: 2.0rem;
  font-weight: 700;
  color: var(--tk-teal);
  margin: 0 0 10px;
}
.tk_faq_a {
  font-size: 1.8rem;
  line-height: 1.6;
  margin: 0;
}

/* ---------- お問い合わせ ---------- */
.tk_contact_bg {
  background: var(--tk-teal-light);
  padding: 50px 20px;
  text-align: center;
}

.tk_contact_ttl {
  font-size: 2.4rem;
  font-weight: 700;
  margin: 0 0 20px;
}

.tk_contact_sub {
  font-size: 2.2rem;
  color: #f60;
  font-weight: 700;
  margin: 0 0 10px;
}

.tk_contact_tel_row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.tk_contact_tel {
  font-size: 5rem;
  font-weight: 700;
  color: #222;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  line-height: 1;
}

/* フリーダイヤルマーク */
.tk_free_icon {
  width: 64px;
  height: auto;
  flex: none;
  display: block;
}

.tk_contact_logo {
  height: 55px;
  width: auto;
}

.tk_contact_time {
  font-size: 1.8rem;
  font-weight: 700;
  color: #666;
  margin: 0;
}


/* ---------- スマホ ---------- */
@media screen and (max-width: 767px) {

  .tk_contact_bg {
    padding: 32px 15px;
  }

  .tk_contact_ttl {
    font-size: 1.8rem;
    margin-bottom: 14px;
  }

  .tk_contact_sub {
    font-size: 1.6rem;
    margin-bottom: 12px;
  }

  .tk_contact_tel_row {
    gap: 10px;
  }

  .tk_contact_tel {
    font-size: 3.2rem;
    gap: 7px;
  }

  /* フリーダイヤルマーク */
  .tk_free_icon {
    width: 42px;
  }

  .tk_contact_logo {
    height: 40px;
  }

  .tk_contact_time {
    font-size: 1.3rem;
    line-height: 1.6;
  }

}