:root {
  --black: #111111;
  --dark: #1a1a1a;
  --gray: #666;
  --light: #f5f5f3;
  --line: #dededb;
  --accent: #b9a36a;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family:
    "Noto Sans JP",
    "Helvetica Neue",
    Arial,
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    "Meiryo",
    sans-serif;
  color: #222;
  background: #fff;
  line-height: 1.8;
}

.noto {
  font-family: "Noto Sans JP", sans-serif;
  color: #333333;
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 0.05em;
}


/* =========================
   NAVIGATION
========================= */

.navbar {
  background: rgba(17, 17, 17, .96) !important;
  padding: 14px 0;
}

.navbar-brand img {
  height: 40px;
  width: auto;
  display: block;
}

.nav-link {
  color: rgba(255, 255, 255, .85) !important;
  font-size: .9rem;
  letter-spacing: .08em;
  transition: .2s;
}

.nav-link:hover {
  color: #fff !important;
}

/* =========================
   HERO
========================= */

.hero {
  position: relative;

  min-height: 650px;

  display: flex;
  align-items: center;

  color: #fff;

  overflow: hidden;

  background:
    linear-gradient(
      90deg,
      rgba(0, 0, 0, 0.78) 0%,
      rgba(0, 0, 0, 0.55) 45%,
      rgba(0, 0, 0, 0.25) 100%
    ),
    url("../img/35115773_m.jpg")
    center center / cover no-repeat;
}


/*
 * HEROの内容を必ず背景より前面にする
 */
.hero .container {
  position: relative;
  z-index: 10;
}


.hero-content {
  position: relative;
  z-index: 20;

  max-width: 760px;
}


.hero-label {
  position: relative;
  z-index: 20;

  display: inline-block;

  font-size: .8rem;
  letter-spacing: .25em;
  font-weight: 600;

  margin-bottom: 20px;

  color: #d8c58d;
}


.hero h1 {
  position: relative;
  z-index: 20;

  font-size: clamp(2.3rem, 5vw, 4.5rem);

  line-height: 1.2;

  font-weight: 700;

  letter-spacing: .04em;

  margin-bottom: 25px;

  color: #fff;
}


.hero p {
  position: relative;
  z-index: 20;

  font-size: clamp(1rem, 2vw, 1.2rem);

  color: rgba(255, 255, 255, .9);

  margin-bottom: 35px;
}


/* =========================
   HERO CONTACT BUTTON
========================= */

.c_btn {
  position: relative;

  z-index: 100;

  display: block;

  margin-top: 10px;

  visibility: visible;

  opacity: 1;
}


.c_btn a {
  position: relative;

  z-index: 101;

  display: inline-block;

  visibility: visible;

  opacity: 1;
}

/* =========================
   CUSTOM BUTTON
========================= */

.btn-custom-cool {
  position: relative;

  z-index: 101;

  display: inline-block;

  min-width: 260px;

  padding: 14px 30px;

  background: #b9a36a !important;

  color: #ffffff !important;

  border: 2px solid #b9a36a !important;

  border-radius: 3px;

  font-size: 1rem;

  font-weight: 700;

  letter-spacing: .08em;

  text-align: center;

  text-decoration: none;

  opacity: 1 !important;

  visibility: visible !important;

  box-shadow:
    0 5px 20px rgba(0, 0, 0, .35);

  transition:
    .3s ease;
}


.btn-custom-cool:hover {
  background: #ffffff !important;

  color: #111111 !important;

  border-color: #ffffff !important;

  transform: translateY(-2px);

  box-shadow:
    0 8px 25px rgba(0, 0, 0, .4);
}

/* =========================
   COMMON
========================= */

section {
  padding: 100px 0;
}

#strength,
#faq,
#contact {
  scroll-margin-top: 30px;
}

.section-label {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .25em;
  color: #999;
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 50px;
  letter-spacing: .04em;
}

.section-title span {
  display: block;
  font-size: .75rem;
  color: #aaa;
  letter-spacing: .2em;
  margin-top: 8px;
  font-weight: 500;
}


/* =========================
   INTRO
========================= */

.intro {
  background: #fff;
}

.intro-text {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

.intro-text h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.5;
  margin-bottom: 25px;
}

.intro-text p {
  color: #666;
  font-size: .95rem;
}


/* =========================
   SERVICES
========================= */

.services {
  background: var(--light);
}

.service-card {
  height: 100%;
  background: #fff;
  border: none;
  overflow: hidden;
  transition: .3s;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, .08);
}

.service-image {
  height: 230px;
  overflow: hidden;
}

.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s;
}

.service-card:hover .service-image img {
  transform: scale(1.05);
}

.service-content {
  padding: 30px;
}

.service-number {
  font-size: .75rem;
  color: #aaa;
  letter-spacing: .15em;
  margin-bottom: 8px;
}

.service-content h3 {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 15px;
}

.service-content p {
  font-size: .9rem;
  color: #666;
  margin-bottom: 20px;
}

.service-content ul {
  padding-left: 18px;
  margin: 0;
  color: #555;
  font-size: .85rem;
}

.service-content li {
  margin-bottom: 5px;
}


/* =========================
   STRENGTH
========================= */

.strength {
  background: #f9f9f7;
}

.strength-box {
  border-top: 1px solid var(--line);
  padding: 35px 0;
}

.strength-number {
  font-size: 2rem;
  font-weight: 700;
  color: #ccc;
}

.strength h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.strength p {
  color: #666;
  font-size: .9rem;
  margin: 0;
}

.strength-bg-number {
  top: -10px;
  right: 10px;
  font-size: 5rem;
  line-height: 1;
}


/* =========================
   COMPANY
========================= */

.company {
  background: var(--light);
}

.company-table {
  background: #fff;
}

.company-table th {
  width: 25%;
  background: #f1f1ef;
  font-weight: 600;
  white-space: nowrap;
}

.company-table th,
.company-table td {
  padding: 18px 20px;
  border-color: #ddd;
}

  /* FAQ */
  .faq {
    background: #f7f7f5;
  }

  .faq .accordion-item {
    background: transparent;
  }

  .faq .accordion-button {
    background: transparent;
    box-shadow: none;
    color: #222;
    font-size: 1rem;
    padding-top: 1.35rem;
    padding-bottom: 1.35rem;
  }

  .faq .accordion-button:not(.collapsed) {
    color: #111;
    background: transparent;
  }

  .faq .accordion-button::after {
    background-size: 1rem;
  }

  .faq .accordion-body {
    line-height: 1.9;
    padding-top: 0;
    padding-bottom: 1.35rem;
  }

  @media (max-width: 767.98px) {
    .faq .accordion-button {
      font-size: .95rem;
    }
  }

/* =========================
   CONTACT
========================= */

.contact {
  background: #151515;
  color: #fff;
  text-align: center;
}

.contact .section-label {
  color: #aaa;
}

.contact .section-title {
  color: #fff;
  margin-bottom: 20px;
}

.contact-text {
  color: #bbb;
  font-size: .9rem;
  margin-bottom: 35px;
}

.contact-tel {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: .05em;
  margin-bottom: 8px;
}

.contact-tel a {
  color: #fff;
  text-decoration: none;
}

.contact-mail {
  color: #aaa;
  font-size: .9rem;
  margin-bottom: 35px;
}

.contact-mail a {
  color: #ddd;
  text-decoration: none;
}


/* =========================
   FOOTER
========================= */

footer {
  background: #0b0b0b;
  color: #fff;
  padding: 55px 0 25px;
}

.footer-logo img {
  max-height: 35px;
  margin-bottom: 20px;
}

.footer-info {
  color: #ccc;
  font-size: 1rem;
}

.footer-info p {
  margin-bottom: 5px;
}

.copyright {
  border-top: 1px solid #222;
  margin-top: 40px;
  padding-top: 20px;
  color: #888;
  font-size: .7rem;
}


/* =========================
   MOBILE
========================= */

@media (max-width: 767px) {

  section {
    padding: 70px 0;
  }

  .hero {
    min-height: 560px;
  }

  .hero h1 {
    font-size: 2.3rem;
  }

  .hero p {
    font-size: .9rem;
  }

  .hero p br {
    display: none;
  }

  .service-image {
    height: 200px;
  }

  .company-table th,
  .company-table td {
    padding: 14px;
    font-size: .85rem;
  }

  .company-table th {
    width: 30%;
  }

  .c_btn {
    margin-top: 10px;
  }

  .btn-custom-cool {
    padding: .75rem 1.5rem;
  }

}