/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", "Noto Sans JP", sans-serif;
  color: #2a313c;
  line-height: 1.6;
}

.pc {
  display: block;
}

.sp {
  display: none;
}

@media (max-width: 768px) {
  .pc {
    display: none;
  }
  .sp {
    display: block;
  }
}

/* Common Typography */
h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: #2a313c;
}

h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 1rem;
}

p {
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 1rem;
  color: #2a313c;
}

.section-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.section-label {
  font-family: "Josefin Sans", sans-serif;
  font-weight: 600;
  font-size: 20px;
  color: rgba(130, 130, 130, 0.5);
  letter-spacing: 6px;
  text-align: center;
}

h2.section-title {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  font-size: 32px;
  color: #2a313c;
  letter-spacing: 3.2px;
  text-align: center;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  h2 {
    font-size: 24px;
  }

  h3 {
    font-size: 18px;
  }

  p {
    font-size: 14px;
  }

  h2.section-title {
    font-size: 24px;
    letter-spacing: 2px;
  }

  .section-label {
    font-size: 16px;
    letter-spacing: 4px;
  }
}

/* Common Container */
.container {
  max-width: 1200px;
  width: 92%;
  margin: 0 auto;
}

/* Common Button Styles */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 5px;
  text-decoration: none;
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700;
  box-shadow: 3px 4px 4px rgba(0, 0, 0, 0.25);
  transition: all 0.3s ease-in-out;
  white-space: nowrap;
}

.btn svg {
  width: 20px;
  height: 20px;
  transition: fill 0.3s ease-in-out;
}

.btn-primary {
  background: linear-gradient(83deg, #f6471c 21.74%, #fda317 129.8%);
  color: #ffffff;
}

.btn-primary:hover {
  background: linear-gradient(83deg, #e03a14 21.74%, #ed9214 129.8%);
  transform: translateY(-2px);
}

.btn-secondary {
  background: linear-gradient(135deg, #cbe8eb, #e8f3f4);
  color: #137f89;
}

.btn-secondary:hover {
  background: linear-gradient(135deg, #b8dde1, #d5eef0);
  transform: translateY(-2px);
}

/* Header Styles */
.header {
  background: #ffffff;
  box-shadow: 0 4px 4px rgba(0, 0, 0, 0.25);
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo img {
  height: 58px;
  width: auto;
}

.navigation {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.navigation a {
  text-decoration: none;
  color: #2a313c;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  transition: color 0.3s ease-in-out;
}

.navigation a:hover {
  color: #f6471c;
}

.header-cta {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.header .btn {
  padding: 10px 25px;
  font-size: 14px;
  letter-spacing: 1.4px;
  width: 220px;
}

/* Header Mobile Styles */
@media (max-width: 768px) {
  .header .container {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem 0;
  }

  .navigation {
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  .navigation a {
    font-size: 12px;
  }

  .header-cta {
    flex-direction: column;
    width: 100%;
    gap: 1rem;
  }

  .header .btn {
    width: 100%;
    max-width: 280px;
  }
}

@media (max-width: 480px) {
  .navigation {
    gap: 1rem;
  }

  .navigation a {
    font-size: 11px;
  }

  .header .btn {
    font-size: 12px;
    letter-spacing: 1px;
    padding: 8px 20px;
  }
}

/* Hero Section */
.hero {
  background-image: url("images/mv-background.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 100px 0;
  /*  min-height: 724px; */
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    270deg,
    rgba(255, 255, 255, 0) 0.2%,
    #fff 28.93%,
    #fff 99.8%
  );
  z-index: 1;
}

.hero-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
  position: relative;
  z-index: 2;
}

.hero-text {
  flex: 1;
  max-width: 600px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.hero-logo {
  max-width: 500px;
}

.hero-logo img {
  width: 100%;
  height: auto;
  max-width: 500px;
  object-fit: contain;
  object-position: center;
}

.hero-description {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.7;
  color: #2a313c;
  letter-spacing: 0.36px;
  margin-bottom: 0;
}

.hero-cta {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.hero-image {
  flex: 1;
  max-width: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image img {
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
}

.btn-large {
  padding: 15px 0;
  font-size: 16px;
  letter-spacing: 1.6px;
  width: 270px;
  gap: 1.25rem;
}

.btn-large svg {
  width: 33px;
  height: 33px;
}

/* Hero Mobile Styles */
@media (max-width: 768px) {
  .hero {
    padding: 60px 0;
    min-height: auto;
  }

  .hero-content {
    flex-direction: column;
    gap: 2rem;
    text-align: center;
  }

  .hero-text {
    max-width: 100%;
    order: 1;
  }

  .hero-image {
    max-width: 100%;
    order: 2;
  }

  .hero-logo {
    max-width: 100%;
  }

  .hero-description {
    font-size: 16px;
  }

  .hero-cta {
    justify-content: center;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .btn-large {
    /* width: 100%; */
    max-width: 320px;
  }
}

@media (max-width: 480px) {
  .hero-description {
    font-size: 14px;
  }

  .btn-large {
    font-size: 14px;
    letter-spacing: 1.2px;
    padding: 12px 0;
    gap: 1rem;
  }

  .btn-large svg {
    width: 28px;
    height: 28px;
  }
}

/* Problem Section */
.problem-section {
  background-color: #ebf0e9;
  padding: 80px 0;
  position: relative;
}

.problem-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
}

.problem-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  max-width: 1200px;
  width: 100%;
  align-items: stretch;
  justify-content: center;
}

.problem-card {
  background-color: #ffffff;
  border-radius: 20px;
  padding: 40px 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
}

.problem-card-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 35px;
  width: fit-content;
}

.card-header {
  position: relative;
}

.card-title {
  background-color: #137f89;
  padding: 10px 10px;
  border-radius: 5px;
  text-align: center;
  width: 320px;
}

.card-title h3 {
  color: #ffffff;
  margin-bottom: 0;
}

.card-arrow {
  position: absolute;
  bottom: -25px;
  left: 50%;
  transform: scaleY(-1) translateX(-50%);
}

.card-arrow img {
  width: 42px;
  height: 34px;
}

.card-description {
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 500;
  font-size: 18px;
  color: #2a313c;
  text-align: center;
  letter-spacing: 0.72px;
  line-height: normal;
  width: 347px;
  margin-bottom: 0;
}

.section-arrow {
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  width: 120px;
}

.section-arrow img {
  width: 100%;
  height: auto;
}

/* Problem Section Mobile Styles */
@media (max-width: 768px) {
  .problem-section {
    padding: 60px 0;
  }

  .problem-cards {
    flex-direction: column;
    gap: 20px;
    align-items: center;
  }

  /*   .card-title {
    width: 100%;
    max-width: 300px;
    font-size: 18px;
    padding: 8px 10px;
  } */

  .card-description {
    width: 100%;
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .problem-section {
    padding: 40px 0;
  }

  .section-title {
    font-size: 20px;
    letter-spacing: 1.5px;
  }

  .section-label {
    font-size: 14px;
    letter-spacing: 3px;
  }

  .problem-card {
    padding: 30px 15px;
  }

  .card-title {
    font-size: 16px;
    padding: 8px;
  }

  .card-description {
    font-size: 14px;
  }

  .section-arrow {
    bottom: -30px;
    width: 80px;
  }
}

/* Solution Section */
.solution-section {
  background-color: #f4f4f4;
  padding: 80px 0;
}

.solution-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 50px;
  max-width: 1200px;
  margin: 0 auto;
}

.solution-text {
  max-width: 800px;
  text-align: center;
}

.solution-text p {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 18px;
  font-weight: 400;
  line-height: 1.44;
  color: #000000;
  letter-spacing: 1.8px;
  margin-bottom: 0;
}

.solution-text p:first-child {
  margin-bottom: 1rem;
}

.solution-text .highlight {
  font-weight: 700;
  color: #f6471c;
}

.solution-image {
  max-width: 500px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.solution-image img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.solution-cta {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  cursor: pointer;
}

.solution-cta .btn img {
  width: 33px;
  height: 33px;
}

/* Solution Section Mobile Styles */
@media (max-width: 768px) {
  .solution-section {
    padding: 60px 0;
  }

  .solution-content {
    gap: 40px;
  }

  .solution-text p {
    font-size: 16px;
    letter-spacing: 1.2px;
  }

  .solution-cta {
    flex-direction: column;
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .solution-section {
    padding: 40px 0;
  }

  .solution-content {
    gap: 30px;
  }

  .solution-text p {
    font-size: 14px;
    letter-spacing: 1px;
  }
}

/* Points Section */
.points-section {
  background-color: #ffffff;
  padding: 80px 0;
}

.points-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 50px;
  max-width: 1200px;
  margin: 0 auto;
}

.points-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  max-width: 800px;
  width: 100%;
}

.points-card {
  background-color: #e5e5e5;
  border-radius: 10px;
  padding: 40px 30px;
  position: relative;
}

.points-card-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}

.points-number {
  position: absolute;
  top: 15px;
  left: 20px;
  font-family: "Inter", sans-serif;
  font-size: 60px;
  font-weight: 700;
  color: rgba(246, 71, 28, 0.3);
  line-height: 1;
}

.points-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: auto;
  padding: 30px 0;
  background-color: #ffffff;
}

.points-icon img {
  width: auto;
  height: 80px;
  object-fit: contain;
}

.points-title {
  color: #f6471c;
  text-align: center;
  margin-bottom: 0;
}

.points-description {
  text-align: left;
}

.points-cta {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

/* Points Section Mobile Styles */
@media (max-width: 768px) {
  .points-section {
    padding: 60px 0;
  }

  .points-content {
    gap: 40px;
  }

  .points-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 400px;
  }

  .points-card {
    padding: 30px 20px;
  }

  .points-number {
    font-size: 50px;
    left: 15px;
  }

  .points-cta {
    flex-direction: column;
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .points-section {
    padding: 40px 0;
  }

  .points-content {
    gap: 30px;
  }
}

/* Flexible Section */
.flexible-section {
  background-color: #f4f4f4;
  padding: 80px 0;
}

.flexible-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 50px;
  max-width: 1200px;
  margin: 0 auto;
}

.flexible-text {
  max-width: 800px;
  text-align: center;
}

.flexible-text p {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 16px;
  font-weight: 400;
  color: #2a313c;
  line-height: 1.6;
  letter-spacing: 0.5px;
  margin-bottom: 1rem;
}

.flexible-text p:last-child {
  margin-bottom: 0;
}

.flexible-text .highlight {
  font-weight: 700;
  color: #f6471c;
}

.systems-comparison {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 600px;
  width: 100%;
}

.systems-comparison img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

/* Flexible Section Mobile Styles */
@media (max-width: 768px) {
  .flexible-section {
    padding: 60px 0;
  }

  .flexible-content {
    gap: 40px;
  }

  .flexible-text p {
    font-size: 14px;
  }

  .systems-comparison {
    flex-direction: column;
    gap: 20px;
  }
}

@media (max-width: 480px) {
  .flexible-section {
    padding: 40px 0;
  }

  .flexible-content {
    gap: 30px;
  }

  .flexible-text p {
    font-size: 13px;
  }
}