/* Astillo */

/* ベーススタイル */
:root {
  --primary-color: #1a3a6e;    /* ダークブルー */
  --secondary-color: #e63946;  /* アクセントレッド */
  --light-color: #f8f9fa;      /* ライトグレー */
  --dark-color: #212529;       /* ダークグレー */
  --text-color: #333333;       /* テキスト色 */
  --border-color: #dee2e6;     /* ボーダー色 */
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: #ffffff;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}
section {
  padding: 80px 0;
}
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--primary-color);
}
h1 {
  font-size: 2.5rem;
}
h2 {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 40px;
}
h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
}
p {
  margin-bottom: 20px;
}
img {
  max-width: 100%;
  height: auto;
}
.btn {
  display: inline-block;
  padding: 12px 30px;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
}
.btn-primary {
  background-color: var(--primary-color);
  color: white;
  border: 2px solid var(--primary-color);
}
.btn-primary:hover {
  background-color: transparent;
  color: var(--primary-color);
}
.btn-secondary {
  background-color: var(--secondary-color);
  color: white;
  border: 2px solid var(--secondary-color);
}
.btn-secondary:hover {
  background-color: transparent;
  color: var(--secondary-color);
}
.text-center {
  text-align: center;
}
.mb-4 {
  margin-bottom: 1.5rem;
}
.mt-4 {
  margin-top: 1.5rem;
}

/* ヒーローセクション 
#top_hero{
    background: url(../images/top-millingsystem.png) no-repeat center;
}*/
/* 価値提案セクション */
.value-props {
  background-color: var(--light-color);
}
.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
}
.value-card {
  background-color: white;
  border-radius: 8px;
  padding: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  text-align: center;
  transition: transform 0.3s ease;
}
.value-icon {
  font-size: 3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
}
#lp .value-props .material-icons {
    font-size: 77px;
    display: block;
}
/* 製品紹介セクション */
.products {
  background-color: white;
}

.product-tabs {
  display: flex;
  justify-content: center;
  margin-bottom: 40px;
}

.tab-btn {
  padding: 12px 30px;
  background-color: var(--light-color);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.tab-btn:first-child {
  border-radius: 4px 0 0 4px;
}

.tab-btn:last-child {
  border-radius: 0 4px 4px 0;
}

.tab-btn.active {
  background-color: var(--primary-color);
  color: white;
}
.product-card {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
  margin-bottom: 30px;
}
.product-card.end {
  margin-bottom: 0;
}

.product-image {
  flex: 1;
  min-width: 300px;
}

.product-info {
  flex: 1;
  min-width: 300px;
}

.product-features {
  list-style: none;
  margin-bottom: 30px;
}

.product-features li {
  margin-bottom: 10px;
  padding-left: 30px;
  position: relative;
}

.product-features li:before {
  content: "✓";
  color: var(--primary-color);
  position: absolute;
  left: 0;
  font-weight: bold;
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 30px;
}

.specs-table th, .specs-table td {
  padding: 12px 15px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.specs-table th {
  background-color: var(--light-color);
}

/* 技術優位性セクション */
.technology {
  background-color: var(--light-color);
}

.tech-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
}

.tech-image {
  flex: 1;
  min-width: 300px;
}

.tech-info {
  flex: 1;
  min-width: 300px;
}

.tech-features {
  list-style: none;
}

.tech-features li {
  margin-bottom: 15px;
  padding-left: 30px;
  position: relative;
}

.tech-features li:before {
  content: "✓";
  color: var(--primary-color);
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* 粉塵対策セクション */
.dust-control {
  background-color: white;
}

.dust-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
}

.dust-image {
  flex: 1;
  min-width: 300px;
}

.dust-info {
  flex: 1;
  min-width: 300px;
}

.dust-features {
  list-style: none;
}

.dust-features li {
  margin-bottom: 15px;
  padding-left: 30px;
  position: relative;
}

.dust-features li:before {
  content: "✓";
  color: var(--primary-color);
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* 用途別メリットセクション */
.applications {
  background-color: var(--light-color);
}

.app-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.app-card {
  background-color: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.app-image {
  height: 250px;
  background-size: cover;
  background-position: center;
}

.app-content {
  padding: 30px;
}

.app-features {
  list-style: none;
}

.app-features li {
  margin-bottom: 10px;
  padding-left: 30px;
  position: relative;
}

.app-features li:before {
  content: "✓";
  color: var(--primary-color);
  position: absolute;
  left: 0;
  font-weight: bold;
}
/* slider */
.video-slider {
  width: 90%;
  margin: 0 auto;
}
.video-slide {
  margin: 0 15px;
  transition: transform 0.3s ease;
}
.video-slide iframe {
  width: 100%;
  height: 315px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.2);
}
.slick-center .video-slide {
  transform: scale(1.1);
}
.slick-prev, .slick-next {
  width: 40px;
  height: 40px;
  z-index: 10;
}
/*.slick-prev::before {
  left: -50px;
  background: url('../images/arrow-left-blue.svg') no-repeat center center;
  background-size: contain;
  content: "" !important;
  color: transparent !important;
    opacity: 1 !important;
    width: 20px;
    height: 40px;
    display: block;
}
.slick-next::before {
  right: -50px;
  background: url('../images/arrow-right-blue.svg') no-repeat center center;
  background-size: contain;
}
.slick-prev:before,
.slick-next:before {
  content: "";
}*/
.slick-dots {
  bottom: -30px;
}
.slick-prev,
.slick-next {
  width: 20px;
  height: 40px;
  z-index: 10;
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
}
.slick-prev {
  background-image: url('../images/arrow-left-blue.svg') !important;
  background-size: contain;
  background-color: #ffff;
}
.slick-next {
  background-image: url('../images/arrow-right-blue.svg') !important;
}
.slick-prev:hover, .slick-prev:focus, .slick-next:hover, .slick-next:focus{
      background-size: contain;
    background: round;
}
/* Slickデフォルト矢印を完全に消す */
.slick-prev::before,
.slick-next::before {
  display: none;
}
/* レスポンシブデザイン */
@media (max-width: 992px) {
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .app-grid {
    grid-template-columns: 1fr;
  }
  h1 {
    font-size: 2.2rem;
  }
  h2 {
    font-size: 1.8rem;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: white;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    padding: 20px 0;
  }
  .nav-links.active {
    display: flex;
  }
  .nav-links li {
    margin: 0;
    text-align: center;
    padding: 10px 0;
  }
  .hamburger {
    display: block;
  }
  .value-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    padding: 100px 0;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .hero p {
    font-size: 1rem;
  }
  .hero-buttons {
    flex-direction: column;
    gap: 10px;
  }
  section {
    padding: 60px 0;
  }
  .product-card {
    gap: 0;
}
}

@media (max-width: 576px) {
  h1 {
    font-size: 1.8rem;
  }
  h2 {
    font-size: 1.5rem;
  }
  .product-tabs {
    flex-direction: column;
    width: 100%;
  }
  .tab-btn {
    width: 100%;
    border-radius: 0;
  }
  .tab-btn:first-child {
    border-radius: 4px 4px 0 0;
  }
  .tab-btn:last-child {
    border-radius: 0 0 4px 4px;
  }
  .contact-form {
    padding: 20px;
  }
}