/*
Theme Name: riff-style02 Theme
Description: モダンな企業サイト向けWordPressテーマ
Author: RYO KAWAMURA
Version: 1.1
Text Domain: riff-theme
*/

/* ================================
   CSS変数の定義
================================ */
:root {
  --primary-color: #007cba;
  --secondary-color: #50575e;
  --accent-color: #fb923c;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --danger-color: #dc3545;
  --text-color: #333;
  --text-light: #666;
  --text-lighter: #999;
  --white: #ffffff;
  --black: #000000;
  --gray-50: #fafafa;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.15);
  --transition: all 0.3s ease;
  --transition-fast: all 0.15s ease;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --hero-overlay-opacity: 0.5;
  --hero-text-color: #ffffff;
  --hero-height: 100vh;
  --header-bg-color: #ffffff;
  --header-text-color: #333333;
  --logo-width: 200px;
  --logo-height: 50px;
  --container-max-width: 1200px;
  --container-padding: 20px;
  --footer-up-bg-color: #f8f9fa;
  --footer-up-text-color: #333333;
  --footer-up-btn-primary-color: #ff6b35;
  --footer-up-btn-secondary-color: #007cba;
}

/* ================================
   リセット & ベーススタイル（修正版）
================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

*:before,
*:after {
  box-sizing: border-box;
}

html {
  margin: 0 !important;
  padding: 0 !important;
  overflow-x: hidden !important;
  width: 100%;
  max-width: 100%;
  scroll-behavior: smooth;
}

a {
  text-decoration: none;
}

body {
  margin: 0 !important;
  padding: 0 !important;
  overflow-x: hidden !important;
  width: 100%;
  max-width: 100%;
  position: relative;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans",
    Meiryo, sans-serif;
  line-height: 1.7;
  color: var(--text-color);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ================================
   ヘッダー（完全版・隙間除去修正済み）
================================ */

/* ベースヘッダースタイル（隙間除去） */
.header {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  z-index: 1000;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  width: 100% !important;
  max-width: 100% !important;
}

/* ヘッダー上部（連絡先情報）の隙間除去 */
.header-top {
  background: var(--primary-color);
  color: var(--white);
  padding: 10px 0;
  font-size: 14px;
  margin: 0 !important;
  width: 100%;
}

.header-top .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0 auto !important;
  padding: 0 var(--container-padding);
}

/* メインヘッダーの隙間除去 */
.header-main {
  padding: 15px 0;
  transition: padding 0.3s ease;
  margin: 0 !important;
  width: 100%;
}

.header.scrolled .header-main {
  padding: 12px 0;
  margin: 0 !important;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0 !important;
  padding: 0 !important;
}

/* スマホ・タブレット用の隙間除去（修正版） */
@media (max-width: 1024px) {
  .container {
    padding: 0 15px;
    margin: 0 auto !important;
  }

  .header {
    margin: 0 !important;
    padding: 0 !important;
  }
}

@media (max-width: 768px) {
  html,
  body {
    margin: 0 !important;
    padding: 0 !important;
    overflow-x: hidden !important;
  }

  .header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
  }

  .header-top {
    display: none;
  }

  .header-main {
    padding: 12px 0;
    margin: 0 !important;
  }

  .header.scrolled .header-main {
    padding: 10px 0;
    margin: 0 !important;
  }

  .navigation {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }
}

@media (max-width: 480px) {
  .header-main {
    padding: 10px 0;
    margin: 0 !important;
  }

  .header.scrolled .header-main {
    padding: 8px 0;
    margin: 0 !important;
  }

  .logo-text {
    font-size: 28px;
  }

  .header-cta {
    padding: 10px 20px;
    font-size: 13px;
  }
}

/* iOS Safari対応（隙間除去） */
@supports (-webkit-touch-callout: none) {
  html,
  body {
    margin: 0 !important;
    padding: 0 !important;
    -webkit-overflow-scrolling: touch;
  }

  .header {
    position: fixed !important;
    top: 0 !important;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
  }
}

/* Android Chrome対応（隙間除去） */
@media screen and (-webkit-min-device-pixel-ratio: 0) and (min-resolution: 0.001dpcm) {
  .header {
    position: fixed !important;
    top: 0 !important;
    will-change: transform;
    margin: 0 !important;
    padding: 0 !important;
  }
}
/* ================================
   ユーティリティクラス
================================ */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  position: relative;
  z-index: 1;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -15px;
}

.row::after {
  content: "";
  display: table;
  clear: both;
}

.col-md-4 {
  flex: 0 0 33.333333%;
  max-width: 33.333333%;
  padding: 0 15px;
}

.col-md-6 {
  flex: 0 0 50%;
  max-width: 50%;
  padding: 0 15px;
}

.section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
  width: 100%;
  display: block;
  clear: both;
}

.section-header {
  margin-bottom: 60px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-color);
  font-family: "Roboto", sans-serif;
}

.section-subtitle {
  font-size: 1.2rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

.text-center {
  text-align: center !important;
}

.text-primary {
  color: var(--primary-color);
}

.bg-light {
  background: var(--gray-50) !important;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ================================
   ボタンスタイル
================================ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-color);
  color: var(--white);
  padding: 16px 32px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 16px;
  transition: var(--transition);
  border: 2px solid var(--accent-color);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  background: #1E3A8A;
  border-color: #1E3A8A;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px #1E3A8A;
  opacity: 1;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--primary-color);
  padding: 14px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 16px;
  transition: var(--transition);
  border: 2px solid var(--primary-color);
  text-decoration: none;
}

.btn-secondary:hover {
  background: var(--primary-color);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* ================================
   ヘッダー（完全版・重複削除済み）
================================ */

/* ベースヘッダースタイル */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* スクロール時のヘッダー（強化版） */
.header.scrolled {
  background: var(--header-scrolled-bg-color, #ffffff) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1) !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05) !important;
}

/* ヘッダースタイル：透明 */
.header-transparent {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.header-transparent.scrolled {
  background: var(--header-scrolled-bg-color, #ffffff) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

/* ヘッダースタイル：ソリッド */
.header-solid {
  background: var(--header-bg-color, #ffffff);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.header-solid.scrolled {
  background: var(--header-scrolled-bg-color, #ffffff) !important;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1) !important;
}

/* ヘッダースタイル：ミニマル */
.header-minimal {
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.header-minimal.scrolled {
  background: var(--header-scrolled-bg-color, #ffffff) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1) !important;
}

/* ヘッダー上部（連絡先情報） */
.header-top {
  background: var(--primary-color);
  color: var(--white);
  padding: 10px 0;
  font-size: 14px;
}

.header-top .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-contact {
  display: flex;
  gap: 30px;
}

.header-contact-item {
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  transition: var(--transition);
}

.header-contact-item:hover {
  opacity: 0.8;
}

/* メインヘッダー */
.header-main {
  padding: 15px 0;
  transition: padding 0.3s ease;
}

.header.scrolled .header-main {
  padding: 12px 0;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ロゴスタイル */
.logo {
  z-index: 1001;
  transition: all 0.3s ease;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-image {
  width: var(--logo-width);
  height: var(--logo-height);
  object-fit: contain;
  transition: var(--transition);
}

.logo-text {
  font-size: 32px;
  font-weight: 700;
  color: var(--hero-text-color, #ffffff);
  font-family: "Roboto", sans-serif;
  letter-spacing: -1px;
  transition: color 0.3s ease;
}

/* スクロール時のロゴテキスト色変更 */
.header.scrolled .logo-text {
  color: var(--header-scrolled-text-color, #333333) !important;
}

/* ナビゲーション */
.navigation {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav {
  display: flex;
  list-style: none;
  gap: 40px;
  margin: 0;
  padding: 0;
}

.nav a {
  color: var(--hero-text-color, #ffffff);
  font-weight: 500;
  position: relative;
  padding: 12px 0;
  font-size: 15px;
  transition: color 0.3s ease;
}

/* スクロール時のナビゲーションテキスト色変更 */
.header.scrolled .nav a {
  color: var(--header-scrolled-text-color, #333333) !important;
}

/* ナビゲーションホバー効果 */
.nav a:hover {
  color: var(--header-link-hover-color, #ff6b35) !important;
}

.nav .current-menu-item a,
.nav .current_page_item a {
  color: var(--header-hover-color, #ff6b35) !important;
}

/* スクロール時でもホバー色を維持 */
.header.scrolled .nav a:hover {
  color: var(--header-link-hover-color, #ff6b35) !important;
}

.header.scrolled .nav .current-menu-item a,
.header.scrolled .nav .current_page_item a {
  color: var(--header-hover-color, #ff6b35) !important;
}

/* ドロップダウンメニュー */
.nav .has-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  min-width: 200px;
  box-shadow: var(--shadow-lg);
  border-radius: var(--border-radius);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 1000;
  list-style: none;
  padding: 10px 0;
  margin: 0;
}

.has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a {
  display: block;
  padding: 12px 20px;
  color: var(--text-color) !important;
  border-bottom: none;
}

.dropdown-menu a:hover {
  background: var(--gray-100);
  color: var(--header-link-hover-color, #ff6b35) !important;
}

.dropdown-icon {
  margin-left: 4px;
  transition: var(--transition);
}

.has-dropdown:hover .dropdown-icon {
  transform: rotate(180deg);
}

/* ヘッダーアクション */
.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-cta {
  background: #FB923C;
  color: var(--white);
  padding: 12px 24px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition);
  white-space: nowrap;
  border: 2px solid #FB923C;
}

.header-cta:hover {
  background: #1E3A8A;
  border-color: #1E3A8A;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px #1E3A8A;
  opacity: 1;
}

/* モバイルメニューボタン */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
  z-index: 1001;
  border: none;
}

.hamburger-line {
  width: 25px;
  height: 3px;
  background: var(--hero-text-color, #ffffff);
  transition: all 0.3s ease;
  border-radius: 2px;
}

/* スクロール時のハンバーガーメニュー色変更 */
.header.scrolled .hamburger-line {
  background: var(--header-scrolled-text-color, #333333) !important;
}

/* ===================================
   モバイルメニュー関連のCSS（修正版・強制適用）
   =================================== */

/* モバイルメニューボタン */
.mobile-menu-toggle {
  display: none !important;
  flex-direction: column !important;
  justify-content: center !important;
  align-items: center !important;
  width: 44px !important;
  height: 44px !important;
  background: transparent !important;
  border: none !important;
  cursor: pointer !important;
  padding: 8px !important;
  transition: all 0.3s ease !important;
  position: relative !important;
  z-index: 1001 !important;
}

.mobile-menu-toggle:hover {
  background-color: rgba(255, 255, 255, 0.1) !important;
  border-radius: 4px !important;
}

.mobile-menu-toggle:focus {
  outline: 2px solid #ffffff !important;
  outline-offset: 2px !important;
}

/* ハンバーガーアイコン */
.hamburger-line {
  display: block !important;
  width: 24px !important;
  height: 2px !important;
  background-color: currentColor !important;
  margin: 3px 0 !important;
  transition: all 0.3s ease !important;
  transform-origin: center !important;
}

/* アクティブ状態のハンバーガーアイコン */
.mobile-menu-open .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px) !important;
}

.mobile-menu-open .hamburger-line:nth-child(2) {
  opacity: 0 !important;
}

.mobile-menu-open .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px) !important;
}

/* モバイルナビゲーション */
.mobile-nav {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100vh !important;
  z-index: 1000 !important;
  visibility: hidden !important;
  opacity: 0 !important;
  transition: all 0.3s ease !important;
}

.mobile-nav[aria-hidden="false"],
.mobile-nav.active {
  visibility: visible !important;
  opacity: 1 !important;
}

/* モバイルナビオーバーレイ */
.mobile-nav-overlay {
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  background-color: rgba(0, 0, 0, 0.8) !important;
  opacity: 0 !important;
  transition: opacity 0.3s ease !important;
}

.mobile-nav[aria-hidden="false"] .mobile-nav-overlay,
.mobile-nav.active .mobile-nav-overlay {
  opacity: 1 !important;
}

/* モバイルナビコンテンツ */
.mobile-nav-content {
  position: absolute !important;
  top: 0 !important;
  right: 0 !important;
  width: 100% !important;
  max-width: 100% !important;
  height: 100vh !important;
  background-color: #1a1a1a !important;
  color: #ffffff !important;
  transform: translateX(100%) !important;
  transition: transform 0.3s ease !important;
  overflow-y: auto !important;
  display: flex !important;
  flex-direction: column !important;
}

.mobile-nav[aria-hidden="false"] .mobile-nav-content,
.mobile-nav.active .mobile-nav-content {
  transform: translateX(0) !important;
}

/* モバイルナビヘッダー */
.mobile-nav-header {
  display: flex !important;
  justify-content: flex-end !important;
  align-items: center !important;
  padding: 20px !important;
  min-height: 70px !important;
  border-bottom: 1px solid #333 !important;
  background-color: #1a1a1a !important;
}

.mobile-nav-close {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 44px !important;
  height: 44px !important;
  background: transparent !important;
  border: none !important;
  cursor: pointer !important;
  border-radius: 4px !important;
  transition: background-color 0.2s ease !important;
  color: #ffffff !important;
}

.mobile-nav-close:hover {
  background-color: rgba(255, 255, 255, 0.1) !important;
}

.mobile-nav-close:focus {
  outline: 2px solid #ffffff !important;
  outline-offset: 2px !important;
}

.close-icon {
  font-size: 28px !important;
  line-height: 1 !important;
  color: #ffffff !important;
  font-weight: 300 !important;
}

/* モバイルナビメニュー */
.mobile-nav-menu {
  flex: 1 !important;
  padding: 0 !important;
  background-color: #1a1a1a !important;
}

/* 重要：メニューリストを縦並びに強制 */
.mobile-nav .nav-mobile,
.mobile-nav .nav-mobile ul,
.mobile-nav ul.nav-mobile {
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
  display: flex !important;
  flex-direction: column !important;
  width: 100% !important;
  background-color: #1a1a1a !important;
}

.mobile-nav .nav-mobile li,
.mobile-nav ul.nav-mobile li {
  border-bottom: 1px solid #333 !important;
  display: block !important;
  width: 100% !important;
  flex-direction: column !important;
  position: relative !important;
  background-color: #1a1a1a !important;
}

.mobile-nav .nav-mobile li:last-child,
.mobile-nav ul.nav-mobile li:last-child {
  border-bottom: none !important;
}

/* モバイルメニューアイテム */
.mobile-menu-item-wrapper {
  display: flex !important;
  align-items: center !important;
  position: relative !important;
  width: 100% !important;
  background-color: #1a1a1a !important;
}

.mobile-nav .nav-mobile a,
.mobile-nav ul.nav-mobile a,
.mobile-menu-link {
  flex: 1 !important;
  display: block !important;
  padding: 22px 24px !important;
  color: #ffffff !important;
  text-decoration: none !important;
  font-weight: 500 !important;
  font-size: 16px !important;
  letter-spacing: 0.5px !important;
  transition: all 0.2s ease !important;
  text-transform: uppercase !important;
  background-color: #1a1a1a !important;
  border: none !important;
  width: 100% !important;
}

.mobile-nav .nav-mobile a:hover,
.mobile-nav .nav-mobile a:focus,
.mobile-nav ul.nav-mobile a:hover,
.mobile-nav ul.nav-mobile a:focus,
.mobile-menu-link:hover,
.mobile-menu-link:focus {
  background-color: rgba(255, 255, 255, 0.05) !important;
  color: #ffffff !important;
}

.mobile-nav .nav-mobile .current-menu-item > a,
.mobile-nav .nav-mobile .active > a,
.mobile-nav ul.nav-mobile .current-menu-item > a,
.mobile-nav ul.nav-mobile .active > a {
  color: #ff6b35 !important;
  background-color: rgba(255, 107, 53, 0.1) !important;
}

/* サブメニュートグル */
.mobile-submenu-toggle {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 60px !important;
  height: 60px !important;
  background: transparent !important;
  border: none !important;
  cursor: pointer !important;
  transition: all 0.2s ease !important;
  color: #ffffff !important;
  font-size: 20px !important;
  position: absolute !important;
  right: 0 !important;
  top: 50% !important;
  transform: translateY(-50%) !important;
}

.mobile-submenu-toggle:hover {
  background-color: rgba(255, 255, 255, 0.1) !important;
  color: #ff6b35 !important;
}

.mobile-submenu-toggle:focus {
  outline: 2px solid #ffffff !important;
  outline-offset: 2px !important;
}

.submenu-icon {
  transition: transform 0.3s ease !important;
  font-size: 18px !important;
  font-weight: 300 !important;
}

.mobile-submenu-toggle.active .submenu-icon {
  transform: rotate(45deg) !important;
}

/* + アイコンのスタイル */
.mobile-submenu-toggle .submenu-icon::before {
  content: "+" !important;
  display: block !important;
}

.mobile-submenu-toggle.active .submenu-icon::before {
  content: "×" !important;
}

/* モバイルサブメニュー */
.mobile-submenu {
  display: none !important;
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
  background-color: #2a2a2a !important;
  width: 100% !important;
  flex-direction: column !important;
}

.mobile-submenu.active {
  display: flex !important;
  flex-direction: column !important;
}

.mobile-submenu li {
  border-bottom: 1px solid #404040 !important;
  display: block !important;
  width: 100% !important;
}

.mobile-submenu li:last-child {
  border-bottom: none !important;
}

.mobile-submenu .mobile-menu-link,
.mobile-submenu a {
  padding-left: 48px !important;
  font-weight: normal !important;
  color: #cccccc !important;
  font-size: 14px !important;
  text-transform: none !important;
  letter-spacing: 0.3px !important;
  background-color: #2a2a2a !important;
}

.mobile-submenu .mobile-menu-link:hover,
.mobile-submenu .mobile-menu-link:focus,
.mobile-submenu a:hover,
.mobile-submenu a:focus {
  background-color: rgba(255, 255, 255, 0.08) !important;
  color: #ffffff !important;
}

/* モバイル連絡先 */
.mobile-contact {
  padding: 30px 24px !important;
  border-top: 1px solid #333 !important;
  background-color: #1a1a1a !important;
}

.mobile-contact-title {
  margin: 0 0 20px 0 !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  color: #ffffff !important;
  text-transform: uppercase !important;
  letter-spacing: 1px !important;
}

.mobile-contact-item {
  display: flex !important;
  align-items: center !important;
  padding: 12px 0 !important;
  color: #cccccc !important;
  text-decoration: none !important;
  transition: color 0.2s ease !important;
  font-size: 14px !important;
}

.mobile-contact-item:hover,
.mobile-contact-item:focus {
  color: #ff6b35 !important;
}

.mobile-contact-item svg {
  margin-right: 12px !important;
  flex-shrink: 0 !important;
  width: 18px !important;
  height: 18px !important;
}

/* モバイルCTA */
.mobile-cta {
  padding: 24px !important;
  border-top: 1px solid #333 !important;
  background-color: #1a1a1a !important;
}

.mobile-cta .btn-primary {
  background: #ff6b35 !important;
  color: #ffffff !important;
  border: 2px solid #ff6b35 !important;
  padding: 16px 24px !important;
  font-weight: 600 !important;
  font-size: 14px !important;
  text-transform: uppercase !important;
  letter-spacing: 1px !important;
}

.mobile-cta .btn-primary:hover {
  background: transparent !important;
  color: #ff6b35 !important;
  border-color: #ff6b35 !important;
}

/* ソーシャルメディアアイコン */
.mobile-social {
  padding: 24px !important;
  border-top: 1px solid #333 !important;
  background-color: #1a1a1a !important;
}

.mobile-social-links {
  display: flex !important;
  gap: 16px !important;
  justify-content: flex-start !important;
}

.mobile-social-link {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 44px !important;
  height: 44px !important;
  background: transparent !important;
  border: 1px solid #555 !important;
  border-radius: 4px !important;
  color: #cccccc !important;
  text-decoration: none !important;
  transition: all 0.3s ease !important;
}

.mobile-social-link:hover {
  background: #ff6b35 !important;
  border-color: #ff6b35 !important;
  color: #ffffff !important;
  transform: translateY(-2px) !important;
}

.mobile-social-link svg {
  width: 20px !important;
  height: 20px !important;
}

/* ボディクラス：メニューオープン時 */
.mobile-menu-open {
  overflow: hidden !important;
}

/* レスポンシブ：モバイル表示 */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex !important;
  }

  .navigation {
    display: none !important;
  }

  .header-cta {
    display: none !important;
  }
}

/* レスポンシブ：タブレット */
@media (min-width: 769px) and (max-width: 1024px) {
  .mobile-menu-toggle {
    display: flex !important;
  }

  .navigation {
    display: none !important;
  }
}

/* レスポンシブ：デスクトップ */
@media (min-width: 1025px) {
  .mobile-menu-toggle {
    display: none !important;
  }

  .mobile-nav {
    display: none !important;
  }
}

/* 小さなスマートフォン対応 */
@media (max-width: 480px) {
  .mobile-nav-content {
    width: 100% !important;
  }

  .mobile-nav .nav-mobile a,
  .mobile-nav ul.nav-mobile a,
  .mobile-menu-link {
    padding: 20px 20px !important;
    font-size: 15px !important;
  }

  .mobile-submenu .mobile-menu-link,
  .mobile-submenu a {
    padding-left: 40px !important;
    font-size: 13px !important;
  }

  .mobile-contact,
  .mobile-cta,
  .mobile-social {
    padding: 20px !important;
  }
}

/* 既存のスタイルを強制的に上書き */
.mobile-nav ul,
.mobile-nav ol,
.mobile-nav .nav,
.mobile-nav .menu {
  display: flex !important;
  flex-direction: column !important;
  list-style: none !important;
  background-color: #1a1a1a !important;
  color: #ffffff !important;
}

.mobile-nav li {
  display: block !important;
  width: 100% !important;
  background-color: #1a1a1a !important;
}

/* WordPress標準のメニュークラスも強制上書き */
.mobile-nav .menu-item {
  display: block !important;
  width: 100% !important;
  background-color: #1a1a1a !important;
}

.mobile-nav .menu-item a {
  color: #ffffff !important;
  background-color: #1a1a1a !important;
  display: block !important;
  width: 100% !important;
}

/* アクセシビリティ：動きを抑制する設定 */
@media (prefers-reduced-motion: reduce) {
  .mobile-nav,
  .mobile-nav-content,
  .mobile-nav-overlay,
  .hamburger-line,
  .submenu-icon,
  .mobile-social-link {
    transition: none !important;
  }

  .mobile-social-link:hover {
    transform: none !important;
  }
}

/* 削除されたアンダーライン効果の無効化 */
.nav a::after {
  display: none !important;
}

.nav .current-menu-item a::after,
.nav .current_page_item a::after {
  display: none !important;
}

/* ================================
   ヘッダースクロール時スタイル強化（追加）
================================ */

/* 基本的なスクロール時スタイル */
.header.scrolled {
  background: var(--header-scrolled-bg-color, #ffffff) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1) !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05) !important;
}

/* 透明ヘッダー専用スクロール時スタイル */
.header-transparent.scrolled {
  background: var(--header-scrolled-bg-color, #ffffff) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

/* ミニマルヘッダー専用スクロール時スタイル */
.header-minimal.scrolled {
  background: var(--header-scrolled-bg-color, #ffffff) !important;
  backdrop-filter: blur(20px) !important;
  -webkit-backdrop-filter: blur(20px) !important;
}

/* スクロール時のテキスト色変更 */
.header.scrolled .nav a {
  color: var(--header-scrolled-text-color, #333333) !important;
}

.header.scrolled .logo-text {
  color: var(--header-scrolled-text-color, #333333) !important;
}

/* 透明・ミニマルヘッダーの初期テキスト色 */
.header-transparent .nav a,
.header-minimal .nav a,
.header-transparent .logo-text,
.header-minimal .logo-text {
  color: var(--hero-text-color, #ffffff) !important;
  transition: color 0.3s ease !important;
}

/* スクロール時のテキスト色変更（透明・ミニマル） */
.header-transparent.scrolled .nav a,
.header-minimal.scrolled .nav a,
.header-transparent.scrolled .logo-text,
.header-minimal.scrolled .logo-text {
  color: var(--header-scrolled-text-color, #333333) !important;
}

/* ソリッドヘッダーのテキスト色（常に同じ） */
.header-solid .nav a,
.header-solid .logo-text {
  color: var(--header-text-color, #333333) !important;
}

/* ハンバーガーメニューのスクロール時色変更 */
.header-transparent .hamburger-line,
.header-minimal .hamburger-line {
  background: var(--hero-text-color, #ffffff) !important;
  transition: background-color 0.3s ease !important;
}

.header-transparent.scrolled .hamburger-line,
.header-minimal.scrolled .hamburger-line {
  background: var(--header-scrolled-text-color, #333333) !important;
}

.header-solid .hamburger-line {
  background: var(--header-text-color, #333333) !important;
}

/* CTAボタンのスクロール時調整 */
.header-cta {
  transition: all 0.3s ease !important;
}

/* ホバー効果の強化 */
.header .nav a:hover,
.header.scrolled .nav a:hover {
  color: var(--header-link-hover-color, #ff6b35) !important;
}

/* デバッグ用クラス（開発時のみ使用） */
.header.force-scrolled {
  background: var(--header-scrolled-bg-color, #ffffff) !important;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1) !important;
}

.header.force-scrolled .nav a,
.header.force-scrolled .logo-text {
  color: var(--header-scrolled-text-color, #333333) !important;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .header.scrolled {
    padding: 10px 0 !important;
  }

  .header.scrolled .header-main {
    padding: 10px 0 !important;
  }
}

/* iOS Safariでの backdrop-filter 対応 */
@supports (backdrop-filter: blur(20px)) or (-webkit-backdrop-filter: blur(20px)) {
  .header-transparent {
    background: rgba(255, 255, 255, 0.1) !important;
  }

  .header-minimal {
    background: transparent !important;
  }

  .header-transparent.scrolled,
  .header-minimal.scrolled {
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
  }
}

/* backdrop-filter が使えない場合のフォールバック */
@supports not (
  (backdrop-filter: blur(20px)) or (-webkit-backdrop-filter: blur(20px))
) {
  .header-transparent {
    background: rgba(255, 255, 255, 0.9) !important;
  }

  .header-transparent.scrolled {
    background: var(--header-scrolled-bg-color, #ffffff) !important;
  }
}

/* ================================
   ヒーローセクション（修正版）
================================ */
.hero {
  height: var(--hero-height);
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary-color), #0096d7);
  z-index: 1;
  width: 100%;
  float: none;
  clear: both;
}

.hero::after {
  content: "";
  display: table;
  clear: both;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-bg-image,
.hero-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.hero-video-fallback {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-gradient {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    #0096d7 50%,
    var(--accent-color) 100%
  );
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, var(--hero-overlay-opacity));
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  text-align: left;
  color: var(--hero-text-color);
}

.hero-inner {
  max-width: 600px;
  width: 100%;
  margin-left: 80px;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.hero-subtitle {
  font-size: 18px;
  font-weight: 400;
  margin-bottom: 20px;
  opacity: 0.9;
  letter-spacing: 3px;
  text-transform: uppercase;
  display: block;
  width: 100%;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  margin-bottom: 30px;
  line-height: 1.2;
  font-family: "Roboto", sans-serif;
  letter-spacing: -2px;
  display: block;
  width: 100%;
}

.hero-description {
  font-size: 20px;
  margin-bottom: 50px;
  opacity: 0.9;
  line-height: 1.8;
  max-width: 600px;
  display: block;
  width: 100%;
}

.hero-actions {
  margin-bottom: 40px;
  display: flex;
  justify-content: flex-start;
  width: 100%;
}

.hero-button {
  background: #fb923c;
  color: var(--white);
  padding: 20px 40px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 18px;
  transition: var(--transition);
  box-shadow: 0 8px 30px rgba(255, 107, 53, 0.3);
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.hero-button:hover {
  background: #1E3A8A;
  transform: translateY(-3px);
  box-shadow: 0 12px 40px #1E3A8A;
  opacity: 1;
}

.hero-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: var(--transition);
}

.hero-button:hover::before {
  left: 100%;
}

.button-icon {
  transition: var(--transition);
}

.hero-button:hover .button-icon {
  transform: translateX(4px);
}

/* ヒーローセクション - スクロールインジケーター修正 */
.hero-scroll {
  position: absolute;
  bottom: 70px;
  right: 40px;
  z-index: 3;
  color: var(--hero-text-color);
  opacity: 0.8;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

/* スクロールインジケーターの内部要素 */
.scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: inherit;
  animation: bounce 2s infinite;
  text-decoration: none;
}

.scroll-text {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

/* ================================
   メインコンテンツ（修正版）
================================ */
.main-content {
  position: relative;
  z-index: 2;
  width: 100%;
  display: block;
  float: none;
  clear: both;
  background: #ffffff;
  min-height: 100vh;
  margin-top: 0 !important;
  padding-top: 0 !important;
}

.hero + .main-content {
  margin-top: 0;
  position: relative;
  z-index: 2;
}

/* ================================
   アニメーション（修正版）
================================ */
/* フォールバック: JavaScriptが無効でも表示されるように */
.fade-in {
  opacity: 1;
  transform: translateY(0);
  transition: all 0.8s ease;
  position: relative;
  z-index: 1;
}

/* JavaScript有効時のアニメーション */
.js .fade-in {
  opacity: 0;
  transform: translateY(30px);
}

.js .fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 3秒後に強制表示（フォールバック） */
.fade-in-fallback {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* Hero部分のテキストは初期状態で表示 */
.hero .fade-in {
  opacity: 1;
  transform: translateY(0);
  animation: heroFadeIn 1s ease forwards;
}

.hero .fade-in[data-delay="0.2s"] {
  animation-delay: 0.2s;
}

.hero .fade-in[data-delay="0.4s"] {
  animation-delay: 0.4s;
}

.hero .fade-in[data-delay="0.6s"] {
  animation-delay: 0.6s;
}

.hero .fade-in[data-delay="0.8s"] {
  animation-delay: 0.8s;
}

.hero .fade-in[data-delay="1s"] {
  animation-delay: 1s;
}

@keyframes heroFadeIn {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ================================
   セクションスタイル
================================ */
.about-content {
  margin-top: 60px;
}

.about-text h3 {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-bottom: 15px;
  font-weight: 600;
  position: relative;
  padding-left: 20px;
}

.about-text h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 100%;
  background: linear-gradient(
    180deg,
    var(--primary-color),
    var(--accent-color)
  );
  border-radius: 2px;
}

.about-text p {
  margin-bottom: 30px;
  line-height: 1.8;
  color: var(--text-light);
}

.about-image {
  padding-left: 40px;
  position: relative;
}

.about-image::before {
  content: "";
  position: absolute;
  top: 20px;
  left: 20px;
  right: 20px;
  bottom: 20px;
  border: 2px solid var(--primary-color);
  border-radius: var(--border-radius-lg);
  opacity: 0.3;
  z-index: 0;
}

.about-image img {
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow);
  position: relative;
  z-index: 1;
}

.services-grid {
  margin-top: 60px;
  position: relative;
  z-index: 1;
}

.services-section {
  position: relative;
  overflow: hidden;
}

.services-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23f0f0f0" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
  z-index: 0;
}

.service-item {
  text-align: center;
  padding: 40px 20px;
  background: var(--white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
  position: relative;
  border: 1px solid var(--gray-200);
}

.service-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(0, 124, 186, 0.05),
    rgba(255, 107, 53, 0.05)
  );
  opacity: 0;
  transition: var(--transition);
  border-radius: var(--border-radius-lg);
}

.service-item:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.service-item:hover::before {
  opacity: 1;
}

.service-icon {
  width: 80px;
  height: 80px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 30px;
  color: var(--white);
  position: relative;
  z-index: 1;
}

.service-icon::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(0, 124, 186, 0.2), transparent);
  border-radius: 50%;
  opacity: 0;
  transition: var(--transition);
}

.service-item:hover .service-icon::before {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.2);
}

.service-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-color);
}

.service-description {
  color: var(--text-light);
  line-height: 1.7;
}

.blog-grid {
  margin-top: 60px;
}

.blog-item {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
  position: relative;
}

.blog-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  transform: scaleX(0);
  transition: var(--transition);
  z-index: 1;
}

.blog-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.blog-item:hover::before {
  transform: scaleX(1);
}

.blog-image {
  overflow: hidden;
}

.blog-image img {
  transition: var(--transition);
}

.blog-item:hover .blog-image img {
  transform: scale(1.05);
}

.blog-content {
  padding: 30px;
}

.blog-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 15px;
}

.blog-title a {
  color: var(--text-color);
}

.blog-title a:hover {
  color: var(--primary-color);
}

.blog-excerpt {
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 20px;
}

.blog-meta {
  font-size: 14px;
  color: var(--text-lighter);
}

/* ================================
   フッタースタイル
================================ */
.footer {
  background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
  color: var(--white);
  padding: 80px 0 0;
  margin-top: 100px;
  position: relative;
  z-index: 3;
  width: 100%;
  clear: both;
}

.footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gray-300), transparent);
}

.footer-content {
  margin-bottom: 60px;
}

.footer-section {
  margin-bottom: 40px;
}

.footer-logo-image {
  max-width: 180px;
  height: auto;
  margin-bottom: 20px;
  filter: brightness(0) invert(1);
}

.footer-logo-text {
  font-size: 28px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  font-family: "Roboto", sans-serif;
}

.footer-description {
  margin-bottom: 30px;
}

.footer-description p {
  color: var(--gray-300);
  line-height: 1.8;
  font-size: 15px;
}

.footer-contact {
  margin-top: 30px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 15px;
}

.footer-contact-item a {
  color: var(--gray-300);
  transition: var(--transition);
  font-size: 15px;
}

.footer-contact-item a:hover {
  color: var(--white);
  opacity: 1;
}

.footer-contact-item svg {
  color: var(--primary-color);
  flex-shrink: 0;
}

.footer-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 25px;
  color: var(--white);
  position: relative;
  padding-bottom: 10px;
}

.footer-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--accent-color);
}

.footer-menu {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-menu li {
  margin-bottom: 12px;
}

.footer-menu a {
  color: var(--gray-300);
  font-size: 15px;
  transition: var(--transition);
  position: relative;
  padding-left: 0;
}

.footer-menu a:hover {
  color: var(--white);
  padding-left: 10px;
  opacity: 1;
}

.footer-menu a::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 1px;
  background: var(--accent-color);
  transition: var(--transition);
}

.footer-menu a:hover::before {
  width: 6px;
}

.footer-widget-content {
  color: var(--gray-300);
  line-height: 1.8;
}

.footer-widget-content p {
  margin-bottom: 20px;
  font-size: 15px;
}

.footer-cta {
  margin-top: 20px;
}

.footer-social {
  text-align: center;
  padding: 40px 0;
  border-top: 1px solid var(--gray-700);
  border-bottom: 1px solid var(--gray-700);
  margin: 40px 0;
}

.footer-social-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--white);
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.social-link {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gray-700);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  color: var(--white);
}

.social-link:hover {
  background: var(--primary-color);
  transform: translateY(-3px);
  opacity: 1;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 30px 0;
  border-top: 1px solid var(--gray-700);
  flex-wrap: wrap;
  gap: 20px;
}

.footer-copyright p {
  color: var(--gray-400);
  font-size: 14px;
  margin: 0;
}

.footer-bottom-nav {
  display: flex;
  gap: 30px;
}

.footer-bottom-nav a {
  color: var(--gray-400);
  font-size: 14px;
  transition: var(--transition);
}

.footer-bottom-nav a:hover {
  color: var(--white);
  opacity: 1;
}

/* ページトップへ戻るボタン */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top-button {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-color);
  color: var(--white);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(255, 107, 53, 0.3);
}

.back-to-top-button:hover {
  background: #e55a2b;
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(255, 107, 53, 0.4);
}

.back-to-top-button:active {
  transform: translateY(-1px);
}

/* フッターウィジェットのスタイル */
.footer-widget h3.widget-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 25px;
  color: var(--white);
  position: relative;
  padding-bottom: 10px;
}

.footer-widget h3.widget-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--accent-color);
}

.footer-widget ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-widget ul li {
  margin-bottom: 12px;
}

.footer-widget ul li a {
  color: var(--gray-300);
  font-size: 15px;
  transition: var(--transition);
}

.footer-widget ul li a:hover {
  color: var(--white);
  opacity: 1;
}

/* ================================
   メガメニュースタイル
================================ */

/* メガメニューコンテナ */
.megamenu-container {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  max-width: 1200px;
  background: var(--white);
  box-shadow: var(--shadow-lg);
  border-radius: var(--border-radius);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(10px);
  transition: var(--transition);
  z-index: 1000;
  padding: 0;
  margin-top: 0;
  border: 1px solid var(--gray-200);
}

/* メガメニューが表示される時 */
.has-megamenu:hover .megamenu-container {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* メガメニューコンテンツ */
.megamenu-content {
  padding: 40px;
  width: 100%;
}

/* 共通ヘッダースタイル */
.megamenu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 30px;
  padding-bottom: 15px;
  border-bottom: 2px solid var(--gray-200);
}

.megamenu-header h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-color);
  margin: 0;
  font-family: "Roboto", sans-serif;
}

.megamenu-view-all {
  color: var(--primary-color);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: var(--transition);
}

.megamenu-view-all:hover {
  color: var(--accent-color);
  opacity: 1;
}

.megamenu-view-all::after {
  content: "→";
  font-size: 16px;
  transition: var(--transition);
}

.megamenu-view-all:hover::after {
  transform: translateX(3px);
}

/* 通常のドロップダウンメニューのホバー効果も調整 */
.has-dropdown > a:hover {
  color: var(--header-hover-color, #ff6b35);
}

.has-dropdown:hover .dropdown-icon {
  transform: rotate(180deg);
}

/* 既存のアンダーライン効果を無効化 */

.nav .current-menu-item a::after,
.nav .current_page_item a::after {
  display: none !important;
}

/* ニュース/ブログタイプのメガメニュー */
.megamenu-news {
  width: 100%;
}

.megamenu-posts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.megamenu-post-item {
  display: flex;
  gap: 15px;
  padding: 20px;
  background: var(--gray-50);
  border-radius: var(--border-radius);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.megamenu-post-item:hover {
  background: var(--white);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.megamenu-post-image {
  flex-shrink: 0;
  width: 80px;
  height: 60px;
  overflow: hidden;
  border-radius: 6px;
}

.megamenu-post-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.megamenu-post-item:hover .megamenu-post-image img {
  transform: scale(1.05);
}

.megamenu-post-content {
  flex: 1;
  min-width: 0;
}

.megamenu-post-title {
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 8px 0;
  line-height: 1.4;
}

.megamenu-post-title a {
  color: var(--text-color);
  text-decoration: none;
  transition: var(--transition);
}

.megamenu-post-title a:hover {
  color: var(--primary-color);
  opacity: 1;
}

.megamenu-post-date {
  font-size: 12px;
  color: var(--text-lighter);
  display: block;
  margin-bottom: 5px;
}

.megamenu-post-excerpt {
  font-size: 12px;
  color: var(--text-light);
  line-height: 1.4;
  margin: 0;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* サービスタイプのメガメニュー */
.megamenu-services {
  width: 100%;
}

.megamenu-service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.megamenu-service-item {
  text-align: center;
  padding: 30px 20px;
  background: var(--gray-50);
  border-radius: var(--border-radius-lg);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
  position: relative;
}

.megamenu-service-item:hover {
  background: var(--white);
  box-shadow: var(--shadow);
  transform: translateY(-5px);
}

.megamenu-service-icon {
  width: 80px;
  height: 80px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  color: var(--white);
  transition: var(--transition);
}

.megamenu-service-item:hover .megamenu-service-icon {
  background: var(--accent-color);
  transform: scale(1.1);
}

.megamenu-service-item h4 {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 15px 0;
  color: var(--text-color);
}

.megamenu-service-item p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
  margin: 0 0 20px 0;
}

.megamenu-service-link {
  color: var(--primary-color);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: var(--transition);
}

.megamenu-service-link:hover {
  color: var(--accent-color);
  opacity: 1;
}

.megamenu-service-link::after {
  content: "→";
  font-size: 14px;
  transition: var(--transition);
}

.megamenu-service-link:hover::after {
  transform: translateX(3px);
}

/* ページタイプのメガメニュー */
.megamenu-pages {
  width: 100%;
}

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

.megamenu-page-item {
  display: flex;
  gap: 20px;
  padding: 25px;
  background: var(--gray-50);
  border-radius: var(--border-radius-lg);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.megamenu-page-item:hover {
  background: var(--white);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.megamenu-page-image {
  flex-shrink: 0;
  width: 120px;
  height: 90px;
  overflow: hidden;
  border-radius: var(--border-radius);
}

.megamenu-page-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.megamenu-page-item:hover .megamenu-page-image img {
  transform: scale(1.05);
}

.megamenu-page-content {
  flex: 1;
}

.megamenu-page-content h4 {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 10px 0;
  line-height: 1.4;
}

.megamenu-page-content h4 a {
  color: var(--text-color);
  text-decoration: none;
  transition: var(--transition);
}

.megamenu-page-content h4 a:hover {
  color: var(--primary-color);
  opacity: 1;
}

.megamenu-page-content p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.5;
  margin: 0;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

/* メガメニューのアニメーション強化 */
.has-megamenu .dropdown-icon {
  transform: rotate(0deg);
  transition: var(--transition);
}

.has-megamenu:hover .dropdown-icon {
  transform: rotate(180deg);
}

/* スクロール時のメガメニュー調整 */
.header.scrolled .megamenu-container {
  box-shadow: var(--shadow-lg), 0 -2px 10px rgba(0, 0, 0, 0.05);
}

/* ================================
   レスポンシブデザイン（統合版）
================================ */
@media (max-width: 1024px) {
  .container {
    padding: 0 15px;
  }

  .nav {
    gap: 30px;
  }

  .section {
    padding: 80px 0;
  }

  .hero-inner {
    margin-left: 40px;
    max-width: 500px;
  }

  .hero-scroll {
    bottom: 30px;
    right: 30px;
  }

  .main-content {
    margin-top: 0;
  }

  .megamenu-content {
    padding: 30px;
  }

  .megamenu-posts {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .megamenu-service-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .megamenu-page-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .header-main {
    padding: 12px 0;
  }

  .navigation {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 2rem;
  }

  .col-md-4,
  .col-md-6 {
    flex: 0 0 100%;
    max-width: 100%;
    margin-bottom: 30px;
  }

  .about-image {
    padding-left: 0;
    margin-top: 40px;
  }

  .service-item {
    margin-bottom: 30px;
  }

  .footer {
    padding: 60px 0 0;
    margin-top: 60px;
  }

  .footer-content {
    margin-bottom: 40px;
  }

  .footer-section {
    margin-bottom: 50px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 20px;
  }

  .footer-bottom-nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
  }

  .back-to-top-button {
    width: 48px;
    height: 48px;
  }

  /* メガメニューのモバイル対応 */
  .megamenu-container {
    display: none !important;
  }

  .has-megamenu .dropdown-icon {
    display: none;
  }

  .has-megamenu .dropdown-menu {
    display: block;
  }
}

@media (max-width: 767px) {
  .hero {
    min-height: 70vh;
    padding: 20px 0;
    justify-content: center;
  }

  .hero-content {
    text-align: center;
    justify-content: center;
    padding: 0 15px;
  }

  .hero-inner {
    align-items: center;
    margin-left: 0;
    max-width: 100%;
    padding: 0;
  }

  .hero-subtitle {
    font-size: 16px;
    letter-spacing: 2px;
    margin-bottom: 15px;
  }

  .hero-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    letter-spacing: -1px;
  }

  .hero-description {
    font-size: 18px;
    margin-bottom: 30px;
    line-height: 1.6;
    max-width: 100%;
  }

  .hero-button {
    padding: 16px 32px;
    font-size: 16px;
  }

  .hero-actions {
    margin-bottom: 30px;
    justify-content: center;
  }

  .hero-scroll {
    bottom: 20px;
    right: 20px;
    left: auto;
  }

  .scroll-text {
    font-size: 12px;
  }

  .main-content {
    margin-top: 0 !important;
    padding-top: 0 !important;
  }

  .megamenu-posts {
    grid-template-columns: 1fr;
  }

  .megamenu-service-grid {
    grid-template-columns: 1fr;
  }

  .megamenu-post-item,
  .megamenu-page-item {
    flex-direction: column;
    text-align: center;
  }

  .megamenu-post-image,
  .megamenu-page-image {
    width: 100%;
    height: 120px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 10px;
  }

  .hero {
    min-height: 60vh;
  }

  .hero-inner {
    padding: 0;
    margin-left: 0;
  }

  .hero-subtitle {
    font-size: 14px;
    letter-spacing: 1px;
  }

  .hero-title {
    font-size: 2rem;
    margin-bottom: 15px;
  }

  .hero-description {
    font-size: 16px;
    margin-bottom: 25px;
  }

  .hero-button {
    padding: 14px 28px;
    font-size: 15px;
  }

  .hero-actions {
    margin-bottom: 20px;
  }

  .hero-scroll {
    bottom: 15px;
    right: 15px;
  }

  .scroll-text {
    font-size: 11px;
  }

  .scroll-indicator {
    gap: 4px;
  }

  .header-cta {
    padding: 10px 20px;
    font-size: 13px;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .section {
    padding: 50px 0;
  }

  .service-item {
    padding: 30px 15px;
  }

  .service-title {
    font-size: 1.25rem;
  }

  .about-text h3 {
    font-size: 1.25rem;
  }

  .blog-content {
    padding: 20px;
  }

  .footer {
    padding: 50px 0 0;
  }

  .footer-logo-image {
    max-width: 150px;
  }

  .footer-logo-text {
    font-size: 24px;
  }

  .footer-title {
    font-size: 18px;
  }

  .footer-bottom-nav {
    flex-direction: column;
    gap: 15px;
  }

  .social-links {
    gap: 15px;
  }

  .social-link {
    width: 40px;
    height: 40px;
  }
}

/* ================================
   プリント用スタイル
================================ */
@media print {
  .header,
  .hero-button,
  .mobile-menu-toggle,
  .hero-scroll,
  .back-to-top {
    display: none;
  }

  .hero {
    height: auto;
    min-height: auto;
    padding: 50px 0;
    page-break-inside: avoid;
  }

  .hero-background,
  .hero-overlay {
    display: none;
  }

  .hero-content {
    color: #000;
  }

  .hero-title,
  .hero-subtitle,
  .hero-description {
    opacity: 1;
    transform: none;
    animation: none;
  }

  body {
    font-size: 12pt;
    line-height: 1.4;
    color: #000;
  }

  .section {
    padding: 30px 0;
    page-break-inside: avoid;
  }

  .service-item,
  .blog-item {
    page-break-inside: avoid;
  }
}

/* ================================
   アクセシビリティ
================================ */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }

  .hero .fade-in {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .hero-scroll .scroll-indicator {
    animation: none;
  }

  .megamenu-container,
  .megamenu-post-item,
  .megamenu-service-item,
  .megamenu-page-item,
  .megamenu-post-image img,
  .megamenu-page-image img {
    transition: none !important;
  }

  .has-megamenu:hover .dropdown-icon {
    transform: none !important;
  }

  .post-card,
  .service-item,
  .post-thumbnail img,
  .pagination .page-numbers {
    transition: none;
  }

  .post-card:hover,
  .service-item:hover {
    transform: none;
  }
}

/* ================================
   高コントラストモード対応
================================ */
@media (prefers-contrast: high) {
  :root {
    --primary-color: #0000ff;
    --accent-color: #ff0000;
    --text-color: #000000;
    --text-light: #333333;
  }

  .hero-overlay {
    background: rgba(0, 0, 0, 0.8);
  }

  .hero-content {
    color: #ffffff;
  }

  .hero-button {
    background: #000000;
    color: #ffffff;
    border: 2px solid #ffffff;
  }

  .megamenu-container {
    border: 2px solid var(--text-color);
  }

  .megamenu-post-item,
  .megamenu-service-item,
  .megamenu-page-item {
    border: 1px solid var(--text-color);
  }

  .post-card {
    border: 2px solid var(--text-color);
  }

  .service-item {
    border: 2px solid var(--text-color);
  }

  .blog-filters {
    border: 2px solid var(--text-color);
  }
}

/* ================================
   パフォーマンス最適化
================================ */
.megamenu-container {
  will-change: opacity, visibility, transform;
}

.megamenu-post-item,
.megamenu-service-item,
.megamenu-page-item {
  will-change: transform, box-shadow;
}

/* ================================
   フロントページ・ブログページ用スタイル
================================ */
.front-page .hero {
  display: flex;
}

.front-page .page-content {
  background: var(--white);
  padding: 60px 0;
}

.front-page .page-content-inner {
  background: var(--gray-50);
  padding: 40px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
}

.blog-page .main-content {
  background: var(--gray-50);
  min-height: calc(100vh - 200px);
}

.blog-header {
  position: relative;
}

.blog-header::before {
  content: "";
  position: absolute;
  top: -50px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  border-radius: 2px;
}

.blog-filters {
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.blog-filters select,
.blog-filters input {
  background: var(--white);
  border: 1px solid var(--gray-300);
  transition: var(--transition);
}

.blog-filters select:focus,
.blog-filters input:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(0, 124, 186, 0.1);
}

.posts-grid {
  position: relative;
}

.post-card {
  position: relative;
  overflow: hidden;
}

.post-thumbnail a {
  display: block;
  position: relative;
  overflow: hidden;
}

.post-thumbnail a::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.1);
  opacity: 0;
  transition: var(--transition);
}

.post-card:hover .post-thumbnail a::after {
  opacity: 1;
}

.post-title a:hover {
  color: var(--primary-color);
}

.post-categories a:hover {
  background: var(--accent-color);
  transform: translateY(-1px);
}

.post-meta time {
  font-weight: 500;
}

.post-meta a:hover {
  color: var(--primary-color);
}

.pagination {
  margin: 60px 0 40px;
}

.pagination .page-numbers {
  position: relative;
  overflow: hidden;
}

.pagination .page-numbers::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: var(--transition);
}

.pagination .page-numbers:hover::before {
  left: 100%;
}

.no-posts {
  position: relative;
}

.no-posts::before {
  content: "";
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  border-radius: 2px;
}

@media (max-width: 767px) {
  .blog-filters {
    padding: 15px;
  }

  .blog-filters > div {
    gap: 15px;
  }

  .blog-filters .filter-categories,
  .blog-filters .filter-sort {
    width: 100%;
  }

  .blog-filters form {
    width: 100%;
    flex-direction: column;
    gap: 10px;
  }

  .blog-filters input[type="search"] {
    min-width: auto;
    width: 100%;
  }

  .blog-filters button {
    width: 100%;
    justify-content: center;
  }

  .posts-grid {
    gap: 20px;
  }

  .post-content {
    padding: 20px !important;
  }

  .post-title {
    font-size: 16px !important;
  }

  .post-excerpt {
    font-size: 13px !important;
  }

  .post-meta {
    font-size: 11px !important;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .blog-header h1 {
    font-size: 2rem;
  }

  .blog-header .breadcrumb {
    font-size: 12px;
  }
}

/* ================================
   フロントページ専用セクション
================================ */

/* WHO WE ARE セクション */
.riff-who-section {
  padding: 100px 0;
  background: var(--white);
}

.riff-who-content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: flex-start;
  gap: 80px;
}

.riff-who-left {
  flex: 1;
  max-width: 500px;
}

.riff-who-title {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 20px;
  font-family: "Roboto", sans-serif;
  letter-spacing: -1px;
}

.riff-who-subtitle {
  font-size: 1.5rem;
  color: var(--text-color);
  margin-bottom: 15px;
  font-weight: 500;
  line-height: 1.4;
}

.riff-who-description {
  font-size: 1.25rem;
  color: var(--text-light);
  margin-bottom: 0;
  line-height: 1.6;
}

.riff-who-right {
  flex: 1;
  max-width: 500px;
  padding-top: 40px;
}

.riff-who-detail {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 40px;
}

.riff-who-button-wrap {
  text-align: right;
}

.riff-who-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-color);
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: var(--transition);
  border-bottom: 2px solid transparent;
  padding-bottom: 4px;
}

.riff-who-button:hover {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  opacity: 1;
}

.riff-who-button svg {
  transition: var(--transition);
}

.riff-who-button:hover svg {
  transform: translateX(4px);
}
/* ================================
   SERVICE セクション ホバー効果強化（修正版）
================================ */

/* 基本的なカードのホバー効果を強制適用 */
.riff-service-card-new {
  flex: 1;
  min-width: 380px;
  max-width: 450px;
  position: relative;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) !important;
  cursor: pointer;
}

.riff-service-wrapper {
  position: relative;
  height: 100%;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) !important;
  background: var(--white);
}

/* ホバー時のメイン効果 */
.riff-service-card-new:hover .riff-service-wrapper,
.riff-service-card-new.hover .riff-service-wrapper {
  transform: translateY(-12px) !important;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15) !important;
}

.riff-service-link {
  display: block;
  text-decoration: none;
  color: inherit;
  height: 100%;
  position: relative;
}

.riff-service-image-container {
  position: relative;
  height: 480px;
  overflow: hidden;
  background: var(--gray-200);
}

.riff-service-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94) !important;
}

/* 画像のホバー効果 */
.riff-service-card-new:hover .riff-service-image,
.riff-service-card-new.hover .riff-service-image {
  transform: scale(1.08) !important;
}

/* グラデーションオーバーレイ */
.riff-service-gradient-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 35%;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.8) 0%,
    rgba(0, 0, 0, 0.6) 30%,
    rgba(0, 0, 0, 0.3) 70%,
    transparent 100%
  );
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) !important;
  z-index: 1;
}

/* ホバー時のグラデーション効果 */
.riff-service-card-new:hover .riff-service-gradient-overlay,
.riff-service-card-new.hover .riff-service-gradient-overlay {
  height: 45% !important;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.9) 0%,
    rgba(0, 0, 0, 0.7) 30%,
    rgba(0, 0, 0, 0.4) 70%,
    transparent 100%
  ) !important;
}

/* テキストコンテンツ */
.riff-service-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 30px;
  color: var(--white);
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  min-height: 120px;
}

.riff-service-card-title {
  font-size: 2.25rem;
  font-weight: 700;
  margin: 0;
  font-family: "Roboto", sans-serif;
  letter-spacing: 1px;
  text-transform: uppercase;
  line-height: 1.2;
  color: var(--white);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  flex: 1;
  transition: all 0.3s ease !important;
}

/* タイトルのホバー効果 */
.riff-service-card-new:hover .riff-service-card-title,
.riff-service-card-new.hover .riff-service-card-title {
  text-shadow: 0 3px 12px rgba(0, 0, 0, 0.5) !important;
  transform: translateY(-5px) !important;
}

.riff-service-arrow {
  width: 56px;
  height: 56px;
  background: #ff6b35;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 2px solid #ff6b35;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) !important;
  flex-shrink: 0;
  margin-left: 20px;
}

/* 矢印のホバー効果 */
.riff-service-card-new:hover .riff-service-arrow,
.riff-service-card-new.hover .riff-service-arrow {
  background: #ff6b35 !important;
  border-color: #ff6b35 !important;
  transform: translateY(-5px) scale(1.1) !important;
}

.riff-service-arrow svg {
  width: 20px;
  height: 20px;
  color: var(--white);
  transition: all 0.3s ease !important;
}

/* SVGアイコンのホバー効果 */
.riff-service-card-new:hover .riff-service-arrow svg,
.riff-service-card-new.hover .riff-service-arrow svg {
  transform: translateX(4px) !important;
}

/* パララックス効果のためのグロー */
.riff-service-card-new::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent,
    rgba(255, 255, 255, 0.05),
    transparent
  );
  transform: rotate(45deg);
  transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  opacity: 0;
  z-index: 1;
  pointer-events: none;
}

.riff-service-card-new:hover::before {
  opacity: 1;
  transform: rotate(45deg) translate(50%, 50%);
}

/* フォーカス状態 */
.riff-service-link:focus {
  outline: 3px solid var(--primary-color);
  outline-offset: 4px;
  border-radius: 16px;
}

.riff-service-link:focus .riff-service-wrapper {
  transform: translateY(-8px);
  box-shadow: 0 16px 48px rgba(0, 124, 186, 0.2);
}

/* 代替画像用スタイル */
.riff-service-no-image {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--gray-300), var(--gray-400));
  position: relative;
}

.riff-service-placeholder {
  color: var(--white);
  font-size: 18px;
  font-weight: 600;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* デバッグ用のクラス（開発時のみ） */
.debug-hover .riff-service-card-new {
  border: 2px solid red !important;
}

.debug-hover .riff-service-gradient-overlay {
  border: 2px solid blue !important;
}

/* タッチデバイス対応 */
@media (hover: none) and (pointer: coarse) {
  .riff-service-gradient-overlay {
    height: 40%;
  }

  .riff-service-card-new:active .riff-service-wrapper {
    transform: translateY(-4px);
  }

  .riff-service-card-new:active .riff-service-gradient-overlay {
    height: 50%;
  }
}

/* NEWS セクション */
.riff-news-section {
  padding: 100px 0;
  background: var(--white);
}

.riff-news-filters {
  max-width: var(--container-max-width);
  margin: 0 auto 60px;
  padding: 0 var(--container-padding);
  text-align: center;
}

.riff-news-filter-buttons {
  display: inline-flex;
  gap: 40px;
  border-bottom: 1px solid var(--gray-300);
  padding-bottom: 0;
}

.riff-news-filter-btn {
  background: none;
  border: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-lighter);
  cursor: pointer;
  padding: 15px 0;
  position: relative;
  transition: var(--transition);
  font-family: "Roboto", sans-serif;
  letter-spacing: 1px;
}

.riff-news-filter-btn.active,
.riff-news-filter-btn:hover {
  color: var(--accent-color);
}

.riff-news-filter-btn::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-color);
  transition: var(--transition);
}

.riff-news-filter-btn.active::after,
.riff-news-filter-btn:hover::after {
  width: 100%;
}

.riff-news-grid {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.riff-news-item {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.riff-news-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.riff-news-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.riff-news-image {
  height: 200px;
  overflow: hidden;
}

.riff-news-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.riff-news-item:hover .riff-news-image img {
  transform: scale(1.05);
}

.riff-news-content {
  padding: 25px;
}

.riff-news-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.riff-news-meta time {
  font-size: 14px;
  color: var(--text-lighter);
}

.riff-news-category {
  background: var(--accent-color);
  color: var(--white);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.riff-news-item-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
  line-height: 1.4;
  color: var(--text-color);
}

.riff-news-button-wrap {
  max-width: var(--container-max-width);
  margin: 60px auto 0;
  padding: 0 var(--container-padding);
}

.riff-news-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-color);
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: var(--transition);
  border-bottom: 2px solid transparent;
  padding-bottom: 4px;
}

.riff-news-button:hover {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  opacity: 1;
}

.riff-news-button svg {
  transition: var(--transition);
}

.riff-news-button:hover svg {
  transform: translateX(4px);
}

/* COMPANY セクション */
.riff-company-section {
  padding: 100px 0;
}

.riff-company-content {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.riff-company-images {
  display: flex;
  gap: 20px;
  margin-bottom: 60px;
  height: 400px;
}

.riff-company-image-left,
.riff-company-image-right {
  flex: 1;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.riff-company-images img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.riff-company-images img:hover {
  transform: scale(1.02);
}

.riff-company-text {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.riff-company-description {
  font-size: 1.1rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 40px;
}

.riff-company-button-wrap {
  text-align: center;
}

.riff-company-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-color);
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: var(--transition);
  border-bottom: 2px solid transparent;
  padding-bottom: 4px;
}

.riff-company-button:hover {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  opacity: 1;
}

.riff-company-button svg {
  transition: var(--transition);
}

.riff-company-button:hover svg {
  transform: translateX(4px);
}

/* ================================
   シンプルなNEWSセクション
================================ */

/* NEWSセクション（シンプル版） */
.riff-news-section-simple {
  padding: 100px 0;
  background: var(--white);
  width: 100%;
  position: relative;
  z-index: 1;
}

.riff-news-container-simple {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 40px;
  width: 100%;
}

.riff-news-header-simple {
  margin-bottom: 60px;
  text-align: center;
}

.riff-news-title-simple {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 15px;
  font-family: "Roboto", sans-serif;
  letter-spacing: -1px;
  line-height: 1.1;
}

.riff-news-subtitle-simple {
  font-size: 1.1rem;
  color: var(--text-light);
  margin-bottom: 0;
  line-height: 1.6;
}

/* ニュースリスト */
.riff-news-list-simple {
  margin-bottom: 60px;
}

.riff-news-item-simple {
  border-bottom: 1px solid var(--gray-200);
  transition: all 0.3s ease;
}

.riff-news-item-simple:last-child {
  border-bottom: none;
}

.riff-news-item-simple:hover {
  background: var(--gray-50);
}

.riff-news-link-simple {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 25px 20px;
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
  position: relative;
}

.riff-news-link-simple:hover {
  color: inherit;
  text-decoration: none;
}

/* ニュースコンテンツ */
.riff-news-content-simple {
  flex: 1;
  min-width: 0;
}

.riff-news-meta-simple {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.riff-news-date-simple {
  font-size: 14px;
  color: var(--text-lighter);
  font-weight: 500;
  font-family: "Roboto", monospace;
  letter-spacing: 0.5px;
}

.riff-news-category-simple {
  background: var(--accent-color);
  color: var(--white);
  font-size: 11px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 3px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1;
}

.riff-news-title-item-simple {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
  line-height: 1.5;
  color: var(--text-color);
  transition: color 0.3s ease;
}

.riff-news-link-simple:hover .riff-news-title-item-simple {
  color: var(--primary-color);
}

/* 矢印アイコン */
.riff-news-arrow-simple {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--gray-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: 20px;
  transition: all 0.3s ease;
  color: var(--text-lighter);
}

.riff-news-link-simple:hover .riff-news-arrow-simple {
  background: var(--primary-color);
  color: var(--white);
  transform: translateX(5px);
}

.riff-news-arrow-simple svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
}

.riff-news-link-simple:hover .riff-news-arrow-simple svg {
  transform: translateX(2px);
}

/* ボタン */
.riff-news-button-wrap-simple {
  text-align: center;
}

.riff-news-button-simple {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--primary-color);
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: all 0.3s ease;
  border: 2px solid var(--primary-color);
  padding: 15px 30px;
  border-radius: 50px;
  background: transparent;
}

.riff-news-button-simple:hover {
  background: var(--primary-color);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 124, 186, 0.3);
  text-decoration: none;
}

.riff-news-button-simple svg {
  transition: transform 0.3s ease;
}

.riff-news-button-simple:hover svg {
  transform: translateX(4px);
}

/* ================================
   レスポンシブ対応
================================ */

@media (max-width: 1024px) {
  .riff-news-container-simple {
    padding: 0 30px;
  }

  .riff-news-title-simple {
    font-size: 2.5rem;
  }
}

@media (max-width: 768px) {
  .riff-news-section-simple {
    padding: 80px 0;
  }

  .riff-news-container-simple {
    padding: 0 20px;
  }

  .riff-news-title-simple {
    font-size: 2.2rem;
  }

  .riff-news-subtitle-simple {
    font-size: 1rem;
  }

  .riff-news-header-simple {
    margin-bottom: 40px;
  }

  .riff-news-list-simple {
    margin-bottom: 40px;
  }

  .riff-news-link-simple {
    padding: 20px 15px;
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
  }

  .riff-news-content-simple {
    width: 100%;
  }

  .riff-news-meta-simple {
    gap: 12px;
  }

  .riff-news-title-item-simple {
    font-size: 1rem;
  }

  .riff-news-arrow-simple {
    align-self: flex-end;
    margin-left: 0;
    width: 36px;
    height: 36px;
  }

  .riff-news-arrow-simple svg {
    width: 14px;
    height: 14px;
  }

  .riff-news-button-simple {
    padding: 12px 24px;
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .riff-news-section-simple {
    padding: 60px 0;
  }

  .riff-news-container-simple {
    padding: 0 15px;
  }

  .riff-news-title-simple {
    font-size: 1.8rem;
  }

  .riff-news-subtitle-simple {
    font-size: 0.95rem;
  }

  .riff-news-link-simple {
    padding: 18px 12px;
  }

  .riff-news-meta-simple {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .riff-news-date-simple {
    font-size: 13px;
  }

  .riff-news-category-simple {
    font-size: 10px;
    padding: 3px 6px;
  }

  .riff-news-title-item-simple {
    font-size: 0.95rem;
    margin-top: 5px;
  }

  .riff-news-arrow-simple {
    width: 32px;
    height: 32px;
  }

  .riff-news-arrow-simple svg {
    width: 12px;
    height: 12px;
  }

  .riff-news-button-simple {
    padding: 10px 20px;
    font-size: 14px;
  }
}

/* ================================
   アニメーション効果
================================ */

.riff-news-item-simple {
  position: relative;
  overflow: hidden;
}

.riff-news-item-simple::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--primary-color);
  transform: scaleY(0);
  transition: transform 0.3s ease;
  transform-origin: bottom;
}

.riff-news-item-simple:hover::before {
  transform: scaleY(1);
}

/* ================================
   アクセシビリティ
================================ */

.riff-news-link-simple:focus {
  outline: 3px solid rgba(0, 124, 186, 0.3);
  outline-offset: 2px;
}

.riff-news-button-simple:focus {
  outline: 3px solid rgba(0, 124, 186, 0.3);
  outline-offset: 2px;
}

/* ================================
   高コントラストモード対応
================================ */

@media (prefers-contrast: high) {
  .riff-news-item-simple {
    border-bottom-color: #000000;
  }

  .riff-news-category-simple {
    background: #000000;
    color: #ffffff;
  }

  .riff-news-arrow-simple {
    border: 2px solid #000000;
  }

  .riff-news-button-simple {
    border-color: #000000;
    color: #000000;
  }

  .riff-news-button-simple:hover {
    background: #000000;
    color: #ffffff;
  }
}

/* ================================
   アニメーション削減対応
================================ */

@media (prefers-reduced-motion: reduce) {
  .riff-news-item-simple,
  .riff-news-link-simple,
  .riff-news-arrow-simple,
  .riff-news-arrow-simple svg,
  .riff-news-button-simple,
  .riff-news-title-item-simple,
  .riff-news-item-simple::before {
    transition: none !important;
  }

  .riff-news-link-simple:hover .riff-news-arrow-simple {
    transform: none !important;
  }

  .riff-news-button-simple:hover {
    transform: none !important;
  }
}

/* ================================
   印刷対応
================================ */

@media print {
  .riff-news-section-simple {
    padding: 30px 0;
    page-break-inside: avoid;
  }

  .riff-news-button-wrap-simple {
    display: none !important;
  }

  .riff-news-item-simple {
    border-bottom: 1px solid #000000;
    break-inside: avoid;
    margin-bottom: 10px;
  }

  .riff-news-link-simple {
    padding: 15px 0;
    display: block;
  }

  .riff-news-arrow-simple {
    display: none;
  }

  .riff-news-category-simple {
    background: #000000 !important;
    color: #ffffff !important;
  }

  .riff-news-title-simple,
  .riff-news-subtitle-simple,
  .riff-news-title-item-simple,
  .riff-news-date-simple {
    color: #000000 !important;
  }
}

/* BLOG セクション */
.riff-blog-section {
  padding: 100px 0;
  background: var(--white);
}

.riff-blog-grid {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin-top: 60px;
}

.riff-blog-item {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.riff-blog-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}

.riff-blog-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.riff-blog-image {
  height: 180px;
  overflow: hidden;
}

.riff-blog-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.riff-blog-item:hover .riff-blog-image img {
  transform: scale(1.05);
}

.riff-blog-content {
  padding: 20px;
}

.riff-blog-meta {
  margin-bottom: 12px;
}

.riff-blog-meta time {
  font-size: 13px;
  color: var(--text-lighter);
}

.riff-blog-item-title {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 10px 0;
  line-height: 1.4;
  color: var(--text-color);
}

.riff-blog-excerpt {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.5;
  margin: 0;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.riff-blog-button-wrap {
  max-width: var(--container-max-width);
  margin: 60px auto 0;
  padding: 0 var(--container-padding);
}

.riff-blog-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-color);
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: var(--transition);
  border-bottom: 2px solid transparent;
  padding-bottom: 4px;
}

.riff-blog-button:hover {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  opacity: 1;
}

.riff-blog-button svg {
  transition: var(--transition);
}

.riff-blog-button:hover svg {
  transform: translateX(4px);
}

/* ================================
   レスポンシブ対応
================================ */

@media (max-width: 1024px) {
  .riff-who-content {
    gap: 60px;
  }

  .riff-service-grid {
    gap: 15px;
  }

  .riff-news-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
  }

  .riff-blog-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
  }

  .riff-company-images {
    gap: 15px;
    height: 350px;
  }
}

@media (max-width: 768px) {
  .riff-who-content {
    flex-direction: column;
    gap: 40px;
  }

  .riff-who-left,
  .riff-who-right {
    max-width: 100%;
  }

  .riff-who-right {
    padding-top: 0;
  }

  .riff-who-title {
    font-size: 2.5rem;
  }

  .riff-who-subtitle {
    font-size: 1.25rem;
  }

  .riff-who-description {
    font-size: 1.1rem;
  }

  .riff-who-button-wrap {
    text-align: left;
  }

  .riff-service-grid {
    flex-direction: column;
    gap: 20px;
  }

  .riff-service-image {
    height: 300px;
  }

  .riff-news-filter-buttons {
    gap: 30px;
  }

  .riff-news-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .riff-blog-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .riff-company-images {
    flex-direction: column;
    height: auto;
    gap: 20px;
  }

  .riff-company-image-left,
  .riff-company-image-right {
    height: 200px;
  }
}

@media (max-width: 480px) {
  .section {
    padding: 60px 0;
  }

  .riff-who-title {
    font-size: 2rem;
  }

  .riff-who-subtitle {
    font-size: 1.1rem;
  }

  .riff-who-description {
    font-size: 1rem;
  }

  .riff-service-image {
    height: 250px;
  }

  .riff-service-card-title {
    font-size: 1.5rem;
  }

  .riff-news-filter-buttons {
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .riff-news-filter-btn {
    font-size: 14px;
    padding: 12px 0;
  }

  .riff-blog-grid {
    grid-template-columns: 1fr;
  }

  .riff-company-image-left,
  .riff-company-image-right {
    height: 180px;
  }

  .riff-company-description {
    font-size: 1rem;
  }
}

/* ================================
   アニメーション強化
================================ */

.riff-service-card {
  position: relative;
  overflow: hidden;
}

.riff-service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: var(--transition);
  z-index: 2;
}

.riff-service-card:hover::before {
  left: 100%;
}

.riff-news-item,
.riff-blog-item {
  position: relative;
  overflow: hidden;
}

.riff-news-item::after,
.riff-blog-item::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  transform: scaleX(0);
  transition: var(--transition);
  z-index: 1;
}

.riff-news-item:hover::after,
.riff-blog-item:hover::after {
  transform: scaleX(1);
}

/* ダークモード対応 */
@media (prefers-color-scheme: dark) {
  .riff-who-section,
  .riff-news-section,
  .riff-blog-section {
    background: var(--gray-900);
  }

  .riff-news-item,
  .riff-blog-item {
    background: var(--gray-800);
    border-color: var(--gray-700);
  }

  .riff-news-filter-buttons {
    border-bottom-color: var(--gray-700);
  }
}

/* プリント用スタイル */
@media print {
  .riff-who-section,
  .riff-service-section,
  .riff-news-section,
  .riff-company-section,
  .riff-blog-section {
    padding: 30px 0;
    page-break-inside: avoid;
  }

  .riff-news-filters,
  .riff-who-button,
  .riff-news-button,
  .riff-company-button,
  .riff-blog-button {
    display: none;
  }

  .riff-service-grid,
  .riff-news-grid,
  .riff-blog-grid {
    display: block;
  }

  .riff-service-card,
  .riff-news-item,
  .riff-blog-item {
    page-break-inside: avoid;
    margin-bottom: 20px;
  }
}

/* ================================
   画像読み込み状態とアクセシビリティ
================================ */

/* ================================
   SERVICEセクション - モバイル表示修正
================================ */

/* 既存のモバイル対応を上書き - border-radius削除とレイアウト修正 */
@media (max-width: 768px) {
  .riff-service-section-fullwidth {
    padding: 60px 0; /* 既存の設定を維持 */
  }

  .riff-service-grid-new {
    flex-direction: column;
    gap: 20px;
    align-items: center;
  }

  .riff-service-card-new {
    min-width: 100%;
    max-width: 100%;
    width: 100%;
  }

  /* サービスカードのborder-radiusを0に */
  .riff-service-wrapper {
    border-radius: 0 !important;
    overflow: hidden;
  }

  /* 画像コンテナの高さとborder-radius修正 */
  .riff-service-image-container {
    height: 250px !important;
    border-radius: 0 !important;
    overflow: hidden;
  }

  /* 画像のborder-radius削除 */
  .riff-service-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0 !important;
  }

  /* プレースホルダー画像のborder-radius削除 */
  .riff-service-no-image {
    border-radius: 0 !important;
  }

  /* コンテンツ部分の調整 */
  .riff-service-content {
    padding: 20px;
    min-height: 80px;
  }

  .riff-service-card-title {
    font-size: 1.5rem;
  }

  .riff-service-arrow {
    width: 44px;
    height: 44px;
  }

  .riff-service-arrow svg {
    width: 16px;
    height: 16px;
  }
}

@media (max-width: 480px) {
  .riff-service-card-new {
    min-width: 100%;
    max-width: 100%;
  }

  .riff-service-image-container {
    height: 220px !important;
  }

  .riff-service-card-title {
    font-size: 1.3rem;
  }

  .riff-service-content {
    padding: 18px;
    min-height: 70px;
  }
}

/* ================================
   COMPANYセクション - モバイル画像表示修正（完全版）
================================ */

/* モバイル表示でのCOMPANYセクション修正 */
@media (max-width: 768px) {
  .riff-company-section-fullwidth {
    padding: 80px 0;
  }

  .riff-company-content-new {
    flex-direction: column;
    gap: 40px;
  }

  /* 画像コンテナの完全修正 */
  .riff-company-images-new {
    display: flex !important;
    flex-direction: column !important;
    width: 100% !important;
    height: auto !important;
    gap: 20px !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  /* 個別画像コンテナの修正 */
  .riff-company-image-left-new,
  .riff-company-image-right-new {
    width: 100% !important;
    height: 200px !important;
    border-radius: 0 !important;
    overflow: hidden !important;
    margin: 0 !important;
    padding: 0 !important;
    flex-shrink: 0 !important;
    position: relative !important;
  }

  /* 画像自体の修正 */
  .riff-company-images-new img {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
    object-position: center !important;
    border-radius: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    display: block !important;
  }

  /* img-responsiveクラスの上書き */
  .riff-company-images-new img.img-responsive {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
  }

  /* テキスト部分の調整 */
  .riff-company-text-new {
    flex: 1;
    max-width: 100%;
    width: 100%;
  }

  .riff-company-description-new {
    font-size: 1.1rem;
  }
}

/* 480px以下での更なる調整 */
@media (max-width: 480px) {
  .riff-company-section-fullwidth {
    padding: 60px 0;
  }

  /* 画像コンテナの隙間をスマホでは少し小さく */
  .riff-company-images-new {
    gap: 15px !important; /* スマホでは15pxの隙間 */
  }

  .riff-company-image-left-new,
  .riff-company-image-right-new {
    height: 180px !important;
  }

  .riff-company-description-new {
    font-size: 1rem;
  }
}

/* 360px以下での調整 */
@media (max-width: 360px) {
  .riff-company-image-left-new,
  .riff-company-image-right-new {
    height: 160px !important;
  }
}

/* ================================
   COMPANYセクション - 追加の安全策
================================ */

/* すべてのモバイルサイズでの共通設定 */
@media (max-width: 768px) {
  /* flex設定の強制適用 */
  .riff-company-section-fullwidth .riff-company-images-new {
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    justify-content: flex-start !important;
  }

  /* 画像コンテナの基本設定を強制 */
  .riff-company-section-fullwidth .riff-company-image-left-new,
  .riff-company-section-fullwidth .riff-company-image-right-new {
    flex: none !important;
    width: 100% !important;
    min-width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  /* 画像の基本設定を強制 */
  .riff-company-section-fullwidth .riff-company-images-new img {
    max-width: 100% !important;
    height: 100% !important;
    vertical-align: top !important;
  }
}

/* ================================
   ホバー効果の無効化（モバイル用）
================================ */

@media (max-width: 768px) {
  .riff-company-images-new img:hover {
    transform: none !important;
  }
}

/* ================================
   読み込み状態での対応
================================ */

@media (max-width: 768px) {
  .riff-company-images-new img.loading,
  .riff-company-images-new img.loaded,
  .riff-company-images-new img.error {
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
    border-radius: 0 !important;
  }
}

/* ================================
   追加の安全策 - 全体的なborder-radius削除
================================ */

/* SERVICEセクションの関連要素すべてのborder-radiusを0に */
.riff-service-section-fullwidth .riff-service-wrapper,
.riff-service-section-fullwidth .riff-service-image-container,
.riff-service-section-fullwidth .riff-service-image,
.riff-service-section-fullwidth .riff-service-no-image {
  border-radius: 0 !important;
}

/* COMPANYセクションの関連要素すべてのborder-radiusを0に */
.riff-company-section-fullwidth .riff-company-image-left-new,
.riff-company-section-fullwidth .riff-company-image-right-new,
.riff-company-section-fullwidth .riff-company-images-new img {
  border-radius: 0 !important;
}

/* 画像の読み込み状態でも確実にborder-radiusを0に */
.riff-service-image.loading,
.riff-service-image.loaded,
.riff-service-image.error,
.riff-company-images-new img.loading,
.riff-company-images-new img.loaded,
.riff-company-images-new img.error {
  border-radius: 0 !important;
}

/* 画像読み込み中のスタイル */
.riff-service-image img.loading,
.riff-news-image img.loading,
.riff-blog-image img.loading,
.riff-company-images img.loading {
  opacity: 0.3;
  filter: blur(2px);
}

.riff-service-image img.loaded,
.riff-news-image img.loaded,
.riff-blog-image img.loaded,
.riff-company-images img.loaded {
  opacity: 1;
  filter: none;
}

.riff-service-image img.error,
.riff-news-image img.error,
.riff-blog-image img.error,
.riff-company-images img.error {
  opacity: 0.5;
  filter: grayscale(100%);
}

/* ローディングアニメーション */
.riff-service-image,
.riff-news-image,
.riff-blog-image,
.riff-company-image-left,
.riff-company-image-right {
  position: relative;
}

.riff-service-image::before,
.riff-news-image::before,
.riff-blog-image::before,
.riff-company-image-left::before,
.riff-company-image-right::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top: 3px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1;
}

.riff-service-image img.loading + ::before,
.riff-news-image img.loading + ::before,
.riff-blog-image img.loading + ::before,
.riff-company-image-left img.loading + ::before,
.riff-company-image-right img.loading + ::before {
  opacity: 1;
}

@keyframes spin {
  0% {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  100% {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

/* フォーカス管理 */
.riff-news-filter-btn:focus,
.riff-who-button:focus,
.riff-news-button:focus,
.riff-company-button:focus,
.riff-blog-button:focus,
.riff-service-link:focus,
.riff-news-link:focus,
.riff-blog-link:focus {
  outline: 3px solid var(--primary-color);
  outline-offset: 2px;
  border-radius: 4px;
}

/* 高コントラストモード対応 */
@media (prefers-contrast: high) {
  .riff-service-overlay {
    background: rgba(0, 0, 0, 0.9);
  }

  .riff-news-category {
    background: var(--text-color);
    color: var(--white);
  }

  .riff-news-item,
  .riff-blog-item {
    border: 2px solid var(--text-color);
  }
}

/* 減らしたアニメーション設定 */
@media (prefers-reduced-motion: reduce) {
  .riff-service-card,
  .riff-news-item,
  .riff-blog-item,
  .riff-service-image img,
  .riff-news-image img,
  .riff-blog-image img,
  .riff-company-images img {
    transition: none !important;
    transform: none !important;
  }

  .riff-service-card:hover,
  .riff-news-item:hover,
  .riff-blog-item:hover {
    transform: none !important;
  }

  .riff-service-card::before {
    display: none;
  }

  @keyframes spin {
    0%,
    100% {
      transform: translate(-50%, -50%) rotate(0deg);
    }
  }
}

/* セマンティックな要素のスタイル調整 */
.riff-who-section h2,
.riff-service-section h2,
.riff-news-section h2,
.riff-company-section h2,
.riff-blog-section h2 {
  position: relative;
}

.riff-who-section h2::after,
.riff-service-section h2::after,
.riff-news-section h2::after,
.riff-company-section h2::after,
.riff-blog-section h2::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  border-radius: 2px;
}

/* パンくずリストのスタイル（必要に応じて） */
.riff-breadcrumb {
  font-size: 14px;
  color: var(--text-lighter);
  margin-bottom: 20px;
}

.riff-breadcrumb a {
  color: var(--primary-color);
  text-decoration: none;
}

.riff-breadcrumb a:hover {
  text-decoration: underline;
}

.riff-breadcrumb .separator {
  margin: 0 8px;
  color: var(--text-lighter);
}

/* スキップリンク */
.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary-color);
  color: var(--white);
  padding: 8px;
  text-decoration: none;
  border-radius: 4px;
  transition: top 0.3s ease;
  z-index: 100000;
}

.skip-link:focus {
  top: 6px;
}

/* 印刷時の調整 */
@media print {
  .riff-news-filters,
  .riff-who-button-wrap,
  .riff-news-button-wrap,
  .riff-company-button-wrap,
  .riff-blog-button-wrap {
    display: none !important;
  }

  .riff-service-grid,
  .riff-news-grid,
  .riff-blog-grid {
    display: block !important;
  }

  .riff-service-card,
  .riff-news-item,
  .riff-blog-item {
    display: block !important;
    break-inside: avoid;
    margin-bottom: 1cm;
    box-shadow: none !important;
    border: 1px solid #000 !important;
  }

  .riff-who-content {
    flex-direction: column !important;
  }

  .riff-company-images {
    flex-direction: column !important;
    height: auto !important;
  }
}

/* ================================
   サービス透明度設定用スタイル
================================ */

.toplevel_page_riff-theme-settings .service-opacity-slider,
.riff-theme-settings_page_riff-front-sections .service-opacity-slider {
  width: 300px;
  margin-right: 15px;
  -webkit-appearance: none;
  appearance: none;
  height: 8px;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(0, 124, 186, 0.3) 25%,
    rgba(0, 124, 186, 0.7) 75%,
    rgba(0, 124, 186, 1) 100%
  );
  border-radius: 4px;
  outline: none;
  transition: all 0.3s ease;
}

.toplevel_page_riff-theme-settings .service-opacity-slider:hover,
.riff-theme-settings_page_riff-front-sections .service-opacity-slider:hover {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.2) 0%,
    rgba(0, 124, 186, 0.4) 25%,
    rgba(0, 124, 186, 0.8) 75%,
    rgba(0, 124, 186, 1) 100%
  );
}

.toplevel_page_riff-theme-settings
  .service-opacity-slider::-webkit-slider-thumb,
.riff-theme-settings_page_riff-front-sections
  .service-opacity-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  background: #007cba;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 124, 186, 0.3);
  border: 3px solid #ffffff;
}

.toplevel_page_riff-theme-settings
  .service-opacity-slider::-webkit-slider-thumb:hover,
.riff-theme-settings_page_riff-front-sections
  .service-opacity-slider::-webkit-slider-thumb:hover {
  background: #005a87;
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0, 124, 186, 0.4);
}

.toplevel_page_riff-theme-settings .service-opacity-slider::-moz-range-thumb,
.riff-theme-settings_page_riff-front-sections
  .service-opacity-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  background: #007cba;
  border-radius: 50%;
  cursor: pointer;
  border: 3px solid #ffffff;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 124, 186, 0.3);
}

.toplevel_page_riff-theme-settings
  .service-opacity-slider::-moz-range-thumb:hover,
.riff-theme-settings_page_riff-front-sections
  .service-opacity-slider::-moz-range-thumb:hover {
  background: #005a87;
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0, 124, 186, 0.4);
}

.toplevel_page_riff-theme-settings .opacity-display,
.riff-theme-settings_page_riff-front-sections .opacity-display {
  display: inline-block;
  min-width: 50px;
  font-weight: 700;
  color: #007cba;
  background: linear-gradient(135deg, #f0f8ff, #e6f3ff);
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 14px;
  border: 2px solid rgba(0, 124, 186, 0.2);
  text-align: center;
  transition: all 0.3s ease;
}

.toplevel_page_riff-theme-settings .opacity-display:hover,
.riff-theme-settings_page_riff-front-sections .opacity-display:hover {
  background: linear-gradient(135deg, #e6f3ff, #cce7ff);
  border-color: rgba(0, 124, 186, 0.4);
  transform: translateY(-1px);
}

/* サービス設定セクションのスタイル改良 */
.toplevel_page_riff-theme-settings h3,
.riff-theme-settings_page_riff-front-sections h3 {
  background: linear-gradient(135deg, #007cba, #0096d7);
  color: #ffffff;
  padding: 15px 20px;
  margin: 30px 0 0 0;
  border-radius: 8px 8px 0 0;
  font-size: 16px;
  font-weight: 600;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  position: relative;
}

.toplevel_page_riff-theme-settings h3::after,
.riff-theme-settings_page_riff-front-sections h3::after {
  content: "";
  position: absolute;
  bottom: -8px;
  left: 20px;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-top: 8px solid #0096d7;
}

.toplevel_page_riff-theme-settings h3 + .form-table,
.riff-theme-settings_page_riff-front-sections h3 + .form-table {
  margin-top: 0;
  border-radius: 0 0 8px 8px;
  border-top: none;
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .toplevel_page_riff-theme-settings .service-opacity-slider,
  .riff-theme-settings_page_riff-front-sections .service-opacity-slider {
    width: 100%;
    max-width: 250px;
    margin-bottom: 10px;
  }

  .toplevel_page_riff-theme-settings .opacity-display,
  .riff-theme-settings_page_riff-front-sections .opacity-display {
    display: block;
    margin-top: 10px;
    width: 80px;
  }
}

/* ================================
   フルワイズセクション用スタイル（新版）
================================ */

/* 共通のコンテナスタイル */
.riff-who-container,
.riff-service-container,
.riff-news-container,
.riff-company-container,
.riff-blog-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 60px;
  width: 100%;
}

/* 共通の見出しスタイル（左寄せ） */
.riff-who-title-new,
.riff-service-title-new,
.riff-news-title-new,
.riff-company-title-new,
.riff-blog-title-new {
  font-size: 4rem;
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 20px;
  font-family: "Roboto", sans-serif;
  letter-spacing: -2px;
  text-align: left;
  line-height: 1.1;
}

.riff-who-subtitle-new,
.riff-service-subtitle-new,
.riff-news-subtitle-new,
.riff-company-subtitle-new,
.riff-blog-subtitle-new {
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 40px;
  text-align: left;
  line-height: 1.6;
}

/* ================================
   WHO WE ARE セクション（新版）
================================ */
.riff-who-section-fullwidth {
  padding: 120px 0;
  background: var(--white);
  width: 100%;
  position: relative;
  z-index: 1;
}

.riff-who-content-wrapper {
  display: flex;
  align-items: flex-start;
  gap: 100px;
  min-height: 400px;
}

.riff-who-left {
  flex: 1;
  max-width: 600px;
}

.riff-who-description-new {
  font-size: 1.4rem;
  color: var(--text-color);
  margin-bottom: 0;
  line-height: 1.6;
  font-weight: 500;
}

.riff-who-right-new {
  flex: 1;
  max-width: 600px;
  padding-top: 60px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.riff-who-detail-new {
  font-size: 1.1rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 50px;
}

.riff-who-button-wrap-new {
  text-align: left;
}

.riff-who-button-new {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--accent-color);
  font-weight: 600;
  font-size: 18px;
  text-decoration: none;
  transition: var(--transition);
  border-bottom: 2px solid transparent;
  padding-bottom: 6px;
}

.riff-who-button-new:hover {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  opacity: 1;
}

.riff-who-button-new svg {
  transition: var(--transition);
}

.riff-who-button-new:hover svg {
  transform: translateX(6px);
}

/* ================================
   SERVICE セクション（新版）
================================ */
.riff-service-section-fullwidth {
  padding: 120px 0;
  background: var(--gray-50);
  width: 100%;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.riff-service-section-fullwidth::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(
      circle at 20% 80%,
      rgba(0, 124, 186, 0.08) 0%,
      transparent 50%
    ),
    radial-gradient(
      circle at 80% 20%,
      rgba(255, 107, 53, 0.08) 0%,
      transparent 50%
    );
  pointer-events: none;
  z-index: 0;
}

.riff-service-container {
  position: relative;
  z-index: 1;
}

.riff-service-header {
  margin-bottom: 80px;
}

.riff-service-grid-new {
  display: flex;
  gap: 40px;
  justify-content: center;
  flex-wrap: wrap;
}

.riff-service-card-new {
  flex: 1;
  min-width: 380px;
  max-width: 450px;
  position: relative;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ================================
   NEWS セクション（新版）
================================ */
.riff-news-section-fullwidth {
  padding: 120px 0;
  background: var(--white);
  width: 100%;
  position: relative;
  z-index: 1;
}

.riff-news-header {
  margin-bottom: 60px;
}

.riff-news-filters-new {
  margin-bottom: 80px;
}

.riff-news-filter-buttons {
  display: flex;
  gap: 50px;
  border-bottom: 1px solid var(--gray-300);
  padding-bottom: 0;
  justify-content: flex-start;
}

.riff-news-grid-new {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 80px;
}

.riff-news-item-new {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.riff-news-item-new:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow);
}

.riff-news-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.riff-news-image-new {
  height: 220px;
  overflow: hidden;
}

.riff-news-image-new img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.riff-news-item-new:hover .riff-news-image-new img {
  transform: scale(1.05);
}

.riff-news-content-new {
  padding: 30px;
}

.riff-news-meta-new {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.riff-news-meta-new time {
  font-size: 14px;
  color: var(--text-lighter);
  font-weight: 500;
}

.riff-news-category-new {
  background: var(--accent-color);
  color: var(--white);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.riff-news-item-title-new {
  font-size: 1.3rem;
  font-weight: 600;
  margin: 0;
  line-height: 1.4;
  color: var(--text-color);
}

.riff-news-button-wrap-new {
  text-align: left;
}

.riff-news-button-new {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--accent-color);
  font-weight: 600;
  font-size: 18px;
  text-decoration: none;
  transition: var(--transition);
  border-bottom: 2px solid transparent;
  padding-bottom: 6px;
}

.riff-news-button-new:hover {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  opacity: 1;
}

.riff-news-button-new svg {
  transition: var(--transition);
}

.riff-news-button-new:hover svg {
  transform: translateX(6px);
}

/* ================================
   COMPANY セクション（新版）
================================ */
.riff-company-section-fullwidth {
  padding: 120px 0;
  background: var(--gray-50);
  width: 100%;
  position: relative;
  z-index: 1;
}

.riff-company-header {
  margin-bottom: 80px;
}

.riff-company-content-new {
  display: flex;
  align-items: center;
  gap: 100px;
  flex-direction: column;
}

.riff-company-images-new {
  flex: 1;
  display: flex;
  gap: 30px;
  height: 500px;
}

.riff-company-image-left-new,
.riff-company-image-right-new {
  flex: 1;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.riff-company-images-new img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.riff-company-images-new img:hover {
  transform: scale(1.02);
}

.riff-company-text-new {
  flex: 1;
  max-width: 600px;
}

.riff-company-description-new {
  font-size: 1.3rem;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 50px;
}

.riff-company-button-wrap-new {
  text-align: left;
}

.riff-company-button-new {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--accent-color);
  font-weight: 600;
  font-size: 18px;
  text-decoration: none;
  transition: var(--transition);
  border-bottom: 2px solid transparent;
  padding-bottom: 6px;
}

.riff-company-button-new:hover {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  opacity: 1;
}

.riff-company-button-new svg {
  transition: var(--transition);
}

.riff-company-button-new:hover svg {
  transform: translateX(6px);
}

/* ================================
   BLOG セクション（新版）
================================ */
.riff-blog-section-fullwidth {
  padding: 120px 0;
  background: var(--white);
  width: 100%;
  position: relative;
  z-index: 1;
}

.riff-blog-header {
  margin-bottom: 80px;
}

.riff-blog-grid-new {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 80px;
}

.riff-blog-item-new {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.riff-blog-item-new:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow);
}

.riff-blog-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.riff-blog-image-new {
  height: 200px;
  overflow: hidden;
}

.riff-blog-image-new img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.riff-blog-item-new:hover .riff-blog-image-new img {
  transform: scale(1.05);
}

.riff-blog-content-new {
  padding: 25px;
}

.riff-blog-meta-new {
  margin-bottom: 15px;
}

.riff-blog-meta-new time {
  font-size: 14px;
  color: var(--text-lighter);
  font-weight: 500;
}

.riff-blog-item-title-new {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 15px 0;
  line-height: 1.4;
  color: var(--text-color);
}

.riff-blog-excerpt-new {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
  margin: 0;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.riff-blog-button-wrap-new {
  text-align: left;
}

.riff-blog-button-new {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--accent-color);
  font-weight: 600;
  font-size: 18px;
  text-decoration: none;
  transition: var(--transition);
  border-bottom: 2px solid transparent;
  padding-bottom: 6px;
}

.riff-blog-button-new:hover {
  color: var(--primary-color);
  border-bottom-color: var(--primary-color);
  opacity: 1;
}

.riff-blog-button-new svg {
  transition: var(--transition);
}

.riff-blog-button-new:hover svg {
  transform: translateX(6px);
}

/* ================================
   レスポンシブ対応（新版）
================================ */

/* タブレット対応 */
@media (max-width: 1200px) {
  .riff-who-container,
  .riff-service-container,
  .riff-news-container,
  .riff-company-container,
  .riff-blog-container {
    padding: 0 40px;
  }

  .riff-who-content-wrapper {
    gap: 60px;
  }

  .riff-company-content-new {
    gap: 60px;
  }

  .riff-service-grid-new {
    gap: 30px;
  }

  .riff-service-card-new {
    min-width: 350px;
  }

  .riff-news-grid-new,
  .riff-blog-grid-new {
    gap: 30px;
  }
}

@media (max-width: 1024px) {
  .riff-who-title-new,
  .riff-service-title-new,
  .riff-news-title-new,
  .riff-company-title-new,
  .riff-blog-title-new {
    font-size: 3.5rem;
  }

  .riff-who-content-wrapper {
    gap: 50px;
  }

  .riff-company-content-new {
    gap: 50px;
  }

  .riff-company-images-new {
    height: 400px;
    gap: 20px;
  }

  .riff-news-grid-new {
    grid-template-columns: repeat(2, 1fr);
  }

  .riff-blog-grid-new {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* タブレット・スマートフォン対応 */
@media (max-width: 768px) {
  .riff-who-container,
  .riff-service-container,
  .riff-news-container,
  .riff-company-container,
  .riff-blog-container {
    padding: 0 20px;
  }

  .riff-who-section-fullwidth,
  .riff-service-section-fullwidth,
  .riff-news-section-fullwidth,
  .riff-company-section-fullwidth,
  .riff-blog-section-fullwidth {
    padding: 80px 0;
  }

  .riff-who-title-new,
  .riff-service-title-new,
  .riff-news-title-new,
  .riff-company-title-new,
  .riff-blog-title-new {
    font-size: 2.8rem;
    margin-bottom: 15px;
  }

  .riff-who-subtitle-new,
  .riff-service-subtitle-new,
  .riff-news-subtitle-new,
  .riff-company-subtitle-new,
  .riff-blog-subtitle-new {
    font-size: 1.1rem;
    margin-bottom: 30px;
  }

  .riff-who-content-wrapper {
    flex-direction: column;
    gap: 40px;
  }

  .riff-who-right-new {
    padding-top: 0;
  }

  .riff-who-description-new {
    font-size: 1.2rem;
  }

  .riff-service-grid-new {
    flex-direction: column;
    gap: 25px;
    align-items: center;
  }

  .riff-service-card-new {
    min-width: 300px;
    max-width: 100%;
  }

  .riff-news-filter-buttons {
    gap: 30px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .riff-news-grid-new {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .riff-company-content-new {
    flex-direction: column;
    gap: 40px;
  }

  .riff-company-images-new {
    height: auto;
    flex-direction: column;
  }

  .riff-company-image-left-new,
  .riff-company-image-right-new {
    height: 250px;
  }

  .riff-company-description-new {
    font-size: 1.1rem;
  }

  .riff-blog-grid-new {
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
  }
}

/* スマートフォン対応 */
@media (max-width: 480px) {
  .riff-who-container,
  .riff-service-container,
  .riff-news-container,
  .riff-company-container,
  .riff-blog-container {
    padding: 0 15px;
  }

  .riff-who-section-fullwidth,
  .riff-service-section-fullwidth,
  .riff-news-section-fullwidth,
  .riff-company-section-fullwidth,
  .riff-blog-section-fullwidth {
    padding: 60px 0;
  }

  .riff-who-title-new,
  .riff-service-title-new,
  .riff-news-title-new,
  .riff-company-title-new,
  .riff-blog-title-new {
    font-size: 2.2rem;
    letter-spacing: -1px;
  }

  .riff-who-subtitle-new,
  .riff-service-subtitle-new,
  .riff-news-subtitle-new,
  .riff-company-subtitle-new,
  .riff-blog-subtitle-new {
    font-size: 1rem;
  }

  .riff-who-description-new {
    font-size: 1.1rem;
  }

  .riff-who-detail-new {
    font-size: 1rem;
  }

  .riff-service-card-new {
    min-width: 280px;
  }

  .riff-news-filter-buttons {
    gap: 20px;
  }

  .riff-news-filter-btn {
    font-size: 14px;
    padding: 12px 0;
  }

  .riff-company-image-left-new,
  .riff-company-image-right-new {
    height: 200px;
  }

  .riff-company-description-new {
    font-size: 1rem;
  }

  .riff-blog-grid-new {
    grid-template-columns: 1fr;
  }

  .riff-who-button-new,
  .riff-news-button-new,
  .riff-company-button-new,
  .riff-blog-button-new {
    font-size: 16px;
  }
}

/* ================================
   アニメーション効果（新版）
================================ */
.riff-news-item-new,
.riff-blog-item-new {
  position: relative;
  overflow: hidden;
}

.riff-news-item-new::after,
.riff-blog-item-new::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
  transform: scaleX(0);
  transition: var(--transition);
  z-index: 1;
}

.riff-news-item-new:hover::after,
.riff-blog-item-new:hover::after {
  transform: scaleX(1);
}

/* フォーカス管理 */
.riff-who-button-new:focus,
.riff-news-button-new:focus,
.riff-company-button-new:focus,
.riff-blog-button-new:focus,
.riff-news-link:focus,
.riff-blog-link:focus {
  outline: 3px solid var(--primary-color);
  outline-offset: 2px;
  border-radius: 4px;
}

/* 高コントラストモード対応 */
@media (prefers-contrast: high) {
  .riff-news-category-new {
    background: var(--text-color);
    color: var(--white);
  }

  .riff-news-item-new,
  .riff-blog-item-new {
    border: 2px solid var(--text-color);
  }
}

/* アニメーション削減対応 */
@media (prefers-reduced-motion: reduce) {
  .riff-news-item-new,
  .riff-blog-item-new,
  .riff-news-image-new img,
  .riff-blog-image-new img,
  .riff-company-images-new img {
    transition: none !important;
    transform: none !important;
  }

  .riff-news-item-new:hover,
  .riff-blog-item-new:hover {
    transform: none !important;
  }
}

/* プリント用スタイル */
@media print {
  .riff-who-section-fullwidth,
  .riff-service-section-fullwidth,
  .riff-news-section-fullwidth,
  .riff-company-section-fullwidth,
  .riff-blog-section-fullwidth {
    padding: 30px 0;
    page-break-inside: avoid;
  }

  .riff-news-filters-new,
  .riff-who-button-wrap-new,
  .riff-news-button-wrap-new,
  .riff-company-button-wrap-new,
  .riff-blog-button-wrap-new {
    display: none !important;
  }

  .riff-service-grid-new,
  .riff-news-grid-new,
  .riff-blog-grid-new {
    display: block !important;
  }

  .riff-service-card-new,
  .riff-news-item-new,
  .riff-blog-item-new {
    display: block !important;
    break-inside: avoid;
    margin-bottom: 1cm;
    box-shadow: none !important;
    border: 1px solid #000 !important;
  }

  .riff-who-content-wrapper,
  .riff-company-content-new {
    flex-direction: column !important;
  }

  .riff-company-images-new {
    flex-direction: column !important;
    height: auto !important;
  }
}

/* ================================
   FOOTER-UP CTA セクション（参考サイト準拠・完全版）
================================ */

.riff-footer-up-section {
  padding: 0;
  position: relative;
  z-index: 2;
  width: 100%;
  overflow: hidden;
  margin: 0;
  background: var(--footer-up-bg-color, #f8f9fa);
}

/* コンテナ */
.riff-footer-up-container {
  max-width: 100%;
  margin: 0;
  padding: 0;
  position: relative;
  z-index: 3;
  width: 100%;
}

/* CTAボタンコンテナ */
.riff-footer-up-cta-buttons {
  display: flex;
  gap: 0;
  justify-content: center;
  align-items: stretch;
  max-width: 100%;
  margin: 0;
  position: relative;
  z-index: 3;
  height: 240px;
}

/* CTAボタン共通スタイル（参考サイト準拠） */
.riff-footer-up-cta-button {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 60px 80px;
  background: var(--footer-up-bg-color, #f8f9fa);
  color: var(--footer-up-text-color, #333333);
  text-decoration: none;
  border-radius: 0;
  transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
  overflow: hidden;
  height: 100%;
  box-shadow: none;
  border: 2px solid #e0e0e0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* ボタン間の境界線 */
.riff-footer-up-cta-button:first-child {
  border-right: 1px solid #e0e0e0;
}

/* 背景オーバーレイ（通常時は不透明、ホバー時に透明に） */
.riff-footer-up-cta-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--footer-up-bg-color, #f8f9fa);
  transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  opacity: 1;
  z-index: 1;
}

/* ホバー時に背景画像を表示 */
.riff-footer-up-cta-button:hover::before {
  opacity: 0;
}

/* ホバー時のボタン全体の変化 */
.riff-footer-up-cta-button:hover {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(0);
  box-shadow: inset 0 0 0 1000px rgba(0, 0, 0, 0.4);
  text-decoration: none;
}

/* CTAボタンコンテンツ */
.riff-footer-up-cta-content {
  flex: 1;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  z-index: 2;
  transition: all 0.4s ease;
}

.riff-footer-up-cta-title {
  font-size: 3.5rem;
  font-weight: 700;
  margin: 0 0 8px 0;
  line-height: 1.1;
  font-family: "Roboto", sans-serif;
  letter-spacing: 2px;
  color: inherit;
  text-shadow: none;
  text-transform: uppercase;
  transition: all 0.4s ease;
}

.riff-footer-up-cta-subtitle {
  font-size: 1.1rem;
  margin: 0;
  opacity: 0.8;
  color: inherit;
  font-weight: 400;
  line-height: 1.4;
  transition: all 0.4s ease;
}

/* ホバー時のテキスト効果 */
.riff-footer-up-cta-button:hover .riff-footer-up-cta-title {
  color: #ffffff;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  transform: translateY(-5px);
}

.riff-footer-up-cta-button:hover .riff-footer-up-cta-subtitle {
  color: #ffffff;
  opacity: 0.9;
  transform: translateY(-3px);
}

/* CTAボタン矢印 */
.riff-footer-up-cta-arrow {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  background: rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: 30px;
  transition: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
  z-index: 2;
}

.riff-footer-up-cta-button:hover .riff-footer-up-cta-arrow {
  background: rgba(255, 255, 255, 0.2);
  transform: translateX(8px) scale(1.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.riff-footer-up-cta-arrow svg {
  width: 28px;
  height: 28px;
  color: inherit;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.riff-footer-up-cta-button:hover .riff-footer-up-cta-arrow svg {
  transform: translateX(4px);
  color: #ffffff;
}

/* ホバー時のグロー効果 */
.riff-footer-up-cta-button::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.1),
    transparent
  );
  transition: left 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  z-index: 1;
}

.riff-footer-up-cta-button:hover::after {
  left: 100%;
}

/* 個別のボタン背景画像設定用のクラス */
.riff-footer-up-contact {
  background-image: var(--contact-bg-image, none);
}

.riff-footer-up-recruit {
  background-image: var(--recruit-bg-image, none);
}

/* ================================
   レスポンシブ対応
================================ */

/* 大画面 */
@media (min-width: 1400px) {
  .riff-footer-up-cta-buttons {
    height: 280px;
  }

  .riff-footer-up-cta-button {
    padding: 80px 100px;
  }

  .riff-footer-up-cta-title {
    font-size: 4rem;
  }

  .riff-footer-up-cta-subtitle {
    font-size: 1.2rem;
  }

  .riff-footer-up-cta-arrow {
    width: 72px;
    height: 72px;
    margin-left: 40px;
  }

  .riff-footer-up-cta-arrow svg {
    width: 32px;
    height: 32px;
  }
}

/* タブレット大 */
@media (max-width: 1024px) {
  .riff-footer-up-cta-buttons {
    height: 220px;
  }

  .riff-footer-up-cta-button {
    padding: 50px 60px;
  }

  .riff-footer-up-cta-title {
    font-size: 3rem;
    letter-spacing: 1.5px;
  }

  .riff-footer-up-cta-subtitle {
    font-size: 1rem;
  }

  .riff-footer-up-cta-arrow {
    width: 56px;
    height: 56px;
    margin-left: 25px;
  }

  .riff-footer-up-cta-arrow svg {
    width: 24px;
    height: 24px;
  }
}

/* タブレット */
@media (max-width: 768px) {
  .riff-footer-up-cta-buttons {
    flex-direction: column;
    height: auto;
  }

  .riff-footer-up-cta-button {
    padding: 40px 50px;
    height: 180px;
  }

  .riff-footer-up-cta-button:first-child {
    border-right: 2px solid #e0e0e0;
    border-bottom: 1px solid #e0e0e0;
  }

  .riff-footer-up-cta-title {
    font-size: 2.5rem;
    letter-spacing: 1px;
  }

  .riff-footer-up-cta-subtitle {
    font-size: 0.95rem;
  }

  .riff-footer-up-cta-arrow {
    width: 52px;
    height: 52px;
    margin-left: 20px;
  }

  .riff-footer-up-cta-arrow svg {
    width: 22px;
    height: 22px;
  }
}

/* スマートフォン大 */
@media (max-width: 480px) {
  .riff-footer-up-cta-button {
    padding: 35px 30px;
    height: 160px;
  }

  .riff-footer-up-cta-title {
    font-size: 2rem;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
  }

  .riff-footer-up-cta-subtitle {
    font-size: 0.9rem;
  }

  .riff-footer-up-cta-arrow {
    width: 48px;
    height: 48px;
    margin-left: 15px;
  }

  .riff-footer-up-cta-arrow svg {
    width: 20px;
    height: 20px;
  }
}

/* 超小画面 */
@media (max-width: 360px) {
  .riff-footer-up-cta-button {
    padding: 30px 25px;
    height: 140px;
  }

  .riff-footer-up-cta-title {
    font-size: 1.8rem;
  }

  .riff-footer-up-cta-subtitle {
    font-size: 0.85rem;
  }

  .riff-footer-up-cta-arrow {
    width: 44px;
    height: 44px;
    margin-left: 12px;
  }

  .riff-footer-up-cta-arrow svg {
    width: 18px;
    height: 18px;
  }
}

/* ================================
   アクセシビリティ対応
================================ */

.riff-footer-up-cta-button:focus {
  outline: 3px solid rgba(0, 123, 186, 0.6);
  outline-offset: -3px;
}

.riff-footer-up-cta-button:focus:not(:focus-visible) {
  outline: none;
}

.riff-footer-up-cta-button:focus-visible {
  outline: 3px solid rgba(0, 123, 186, 0.6);
  outline-offset: -3px;
}

/* キーボードナビゲーション対応 */
.riff-footer-up-cta-button:active {
  transform: scale(0.98);
}

/* タッチデバイス対応 */
@media (hover: none) and (pointer: coarse) {
  .riff-footer-up-cta-button:active::before {
    opacity: 0.3;
  }
}

/* ================================
   高コントラストモード対応
================================ */

@media (prefers-contrast: high) {
  .riff-footer-up-cta-button {
    border: 3px solid #000000;
  }

  .riff-footer-up-cta-button:hover {
    background: #000000;
    color: #ffffff;
  }

  .riff-footer-up-cta-arrow {
    background: #000000;
    color: #ffffff;
  }
}

/* ================================
   アニメーション無効化対応
================================ */

@media (prefers-reduced-motion: reduce) {
  .riff-footer-up-cta-button,
  .riff-footer-up-cta-arrow,
  .riff-footer-up-cta-arrow svg,
  .riff-footer-up-cta-button::before,
  .riff-footer-up-cta-button::after,
  .riff-footer-up-cta-content,
  .riff-footer-up-cta-title,
  .riff-footer-up-cta-subtitle {
    transition: none !important;
    animation: none !important;
  }

  .riff-footer-up-cta-button:hover {
    transform: none !important;
  }

  .riff-footer-up-cta-button:hover .riff-footer-up-cta-arrow {
    transform: none !important;
  }
}

/* ================================
   印刷対応
================================ */

@media print {
  .riff-footer-up-section {
    padding: 30px 0;
    page-break-inside: avoid;
    background: #ffffff !important;
    color: #000000 !important;
    border-top: 2px solid #000000;
  }

  .riff-footer-up-cta-button {
    border: 2px solid #000000 !important;
    color: #000000 !important;
    background: #ffffff !important;
    box-shadow: none !important;
    height: auto !important;
    padding: 20px !important;
  }

  .riff-footer-up-cta-title,
  .riff-footer-up-cta-subtitle {
    color: #000000 !important;
    font-size: 18px !important;
  }

  .riff-footer-up-cta-arrow {
    background: #000000 !important;
    color: #ffffff !important;
  }

  .riff-footer-up-cta-arrow svg {
    color: #ffffff !important;
  }
}

/* ================================
   パフォーマンス最適化
================================ */

.riff-footer-up-cta-button {
  will-change: transform, box-shadow, color;
  transform: translateZ(0);
}

.riff-footer-up-cta-buttons {
  transform: translateZ(0);
}

/* ================================
   新しいフッタースタイル（フルワイド対応・ロゴ選択対応）
================================ */

.riff-new-footer {
  background: var(--riff-footer-bg-color, #2c3e50);
  color: var(--riff-footer-text-color, #ffffff);
  padding: 60px 0 0;
  margin-top: 100px;
  position: relative;
  z-index: 3;
  width: 100%;
  clear: both;
}

.riff-new-footer-container {
  max-width: var(--riff-footer-fullwidth, 1200px);
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

/* ================================
   会社情報・SNSセクション
================================ */
.riff-new-footer-info {
  margin-bottom: 40px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

/* ブランド（ロゴ・タイトル） */
.riff-new-footer-brand {
  margin-bottom: 20px;
}

.riff-new-footer-logo {
  width: var(--riff-footer-logo-width, 180px);
  height: var(--riff-footer-logo-height, 50px);
  object-fit: contain;
  filter: brightness(0) invert(1);
  transition: all 0.3s ease;
}

.riff-new-footer-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--riff-footer-text-color, #ffffff);
  margin: 0;
  font-family: "Roboto", sans-serif;
  line-height: 1.2;
}

/* 会社情報 */
.riff-new-footer-company {
  margin-bottom: 25px;
  line-height: 1.6;
}

.riff-new-footer-company-name {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 8px 0;
  color: var(--riff-footer-text-color, #ffffff);
}

.riff-new-footer-address {
  font-size: 14px;
  margin: 0;
  color: var(--riff-footer-text-color, #ffffff);
  opacity: 0.8;
  line-height: 1.5;
}

/* SNSアイコン */
.riff-new-footer-social {
  display: flex;
  gap: 15px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.riff-new-footer-social-link {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--riff-footer-link-color, #ecf0f1);
  transition: all 0.3s ease;
  text-decoration: none;
  flex-shrink: 0;
}

.riff-new-footer-social-link:hover {
  background: var(--riff-footer-link-hover-color, #ff6b35);
  color: #ffffff;
  transform: translateY(-3px);
  opacity: 1;
}

.riff-new-footer-social-link svg {
  width: 20px;
  height: 20px;
}

/* プラットフォーム別色設定 */
.riff-social-instagram:hover {
  background: #e4405f !important;
}

.riff-social-twitter:hover {
  background: #000000 !important;
}

.riff-social-facebook:hover {
  background: #1877f2 !important;
}

.riff-social-youtube:hover {
  background: #ff0000 !important;
}

.riff-social-tiktok:hover {
  background: #000000 !important;
}

.riff-social-line:hover {
  background: #00b900 !important;
}

/* ================================
   ナビゲーションメニュー（フルワイド対応）
================================ */
.riff-new-footer-nav {
  margin-bottom: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  width: 100%;
}

.riff-new-footer-menu {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  width: 100%;
  justify-content: flex-start;
}

.riff-new-footer-menu li {
  margin: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  flex-shrink: 0;
}

.riff-new-footer-menu li:last-child {
  border-right: none;
}

.riff-new-footer-menu a {
  display: block;
  padding: 12px 25px;
  color: var(--riff-footer-link-color, #ecf0f1);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s ease;
  position: relative;
  white-space: nowrap;
}

.riff-new-footer-menu a:hover {
  color: var(--riff-footer-link-hover-color, #ff6b35);
  background: rgba(255, 255, 255, 0.05);
  opacity: 1;
}

.riff-new-footer-menu a::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--riff-footer-link-hover-color, #ff6b35);
  transition: width 0.3s ease;
}

.riff-new-footer-menu a:hover::before {
  width: 100%;
}

/* フルワイド時のメニュー調整 */
.riff-new-footer-container[style*="max-width: 100%"] .riff-new-footer-menu {
  justify-content: flex-start;
}

/* ================================
   コピーライト（背景色対応・隙間調整）
================================ */
.riff-new-footer-copyright {
  background: var(--riff-footer-copyright-bg-color, #1a252f);
  color: var(--riff-footer-copyright-text-color, #ffffff);
  text-align: left;
  padding: 20px 0;
  margin: 20px 0 0 0;
  width: 100%;
  position: relative;
}

/* フルワイド時のコピーライト調整 */
.riff-new-footer-copyright::before {
  content: "";
  position: absolute;
  left: -9999px;
  right: -9999px;
  top: 0;
  bottom: 0;
  background: var(--riff-footer-copyright-bg-color, #1a252f);
  z-index: -1;
}

.riff-new-footer-copyright p {
  margin: 0;
  font-size: 14px;
  color: var(--riff-footer-copyright-text-color, #ffffff);
  opacity: 0.9;
  position: relative;
  z-index: 1;
}

/* ================================
   ページトップへ戻るボタン（既存スタイルを保持）
================================ */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all 0.3s ease;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top-button {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-color, #ff6b35);
  color: #ffffff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(255, 107, 53, 0.3);
}

.back-to-top-button:hover {
  background: #e55a2b;
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(255, 107, 53, 0.4);
}

.back-to-top-button:active {
  transform: translateY(-1px);
}

/* ================================
   レスポンシブ対応（フルワイド考慮）
================================ */

/* 大画面でのフルワイド調整 */
@media (min-width: 1400px) {
  .riff-new-footer-container {
    padding: 0 60px;
  }

  .riff-new-footer-menu a {
    padding: 12px 30px;
  }
}

/* タブレット大 */
@media (max-width: 1024px) {
  .riff-new-footer-container {
    padding: 0 30px;
  }

  .riff-new-footer-menu a {
    padding: 12px 20px;
    font-size: 14px;
  }

  .riff-new-footer-social {
    gap: 12px;
  }

  .riff-new-footer-social-link {
    width: 36px;
    height: 36px;
  }

  .riff-new-footer-social-link svg {
    width: 18px;
    height: 18px;
  }
}

/* タブレット */
@media (max-width: 768px) {
  .riff-new-footer {
    padding: 40px 0 0;
    margin-top: 60px;
  }

  .riff-new-footer-container {
    padding: 0 20px;
  }

  .riff-new-footer-social {
    gap: 12px;
    margin-bottom: 25px;
  }

  .riff-new-footer-social-link {
    width: 36px;
    height: 36px;
  }

  .riff-new-footer-social-link svg {
    width: 18px;
    height: 18px;
  }

  .riff-new-footer-menu {
    flex-direction: column;
    gap: 0;
  }

  .riff-new-footer-menu li {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
  }

  .riff-new-footer-menu li:last-child {
    border-bottom: none;
  }

  .riff-new-footer-menu a {
    padding: 15px 0;
    white-space: normal;
  }

  .riff-new-footer-nav {
    padding: 15px 0;
  }

  .riff-new-footer-copyright {
    padding: 15px 0;
    margin: 15px 0 0 0;
  }

  .back-to-top {
    bottom: 20px;
    right: 20px;
  }

  .back-to-top-button {
    width: 48px;
    height: 48px;
  }

  /* ロゴサイズの調整 */
  .riff-new-footer-logo {
    max-width: 150px;
    height: auto;
  }

  .riff-new-footer-title {
    font-size: 24px;
  }
}

/* スマートフォン */
@media (max-width: 480px) {
  .riff-new-footer {
    padding: 30px 0 0;
    margin-top: 40px;
  }

  .riff-new-footer-container {
    padding: 0 15px;
  }

  .riff-new-footer-title {
    font-size: 22px;
  }

  .riff-new-footer-company-name {
    font-size: 16px;
  }

  .riff-new-footer-address {
    font-size: 13px;
  }

  .riff-new-footer-social {
    gap: 10px;
    margin-bottom: 20px;
  }

  .riff-new-footer-social-link {
    width: 32px;
    height: 32px;
  }

  .riff-new-footer-social-link svg {
    width: 16px;
    height: 16px;
  }

  .riff-new-footer-menu a {
    font-size: 14px;
    padding: 12px 0;
  }

  .riff-new-footer-nav {
    margin-bottom: 15px;
    padding: 12px 0;
  }

  .riff-new-footer-copyright {
    padding: 15px 0;
    margin: 15px 0 0 0;
  }

  .riff-new-footer-copyright p {
    font-size: 12px;
  }

  .back-to-top {
    bottom: 15px;
    right: 15px;
  }

  .back-to-top-button {
    width: 44px;
    height: 44px;
  }

  /* ロゴサイズの調整 */
  .riff-new-footer-logo {
    max-width: 120px;
    height: auto;
  }

  .riff-new-footer-title {
    font-size: 20px;
  }
}

/* 超小画面 */
@media (max-width: 360px) {
  .riff-new-footer-container {
    padding: 0 12px;
  }

  .riff-new-footer-menu a {
    font-size: 13px;
    padding: 10px 0;
  }

  .riff-new-footer-logo {
    max-width: 100px;
    height: auto;
  }

  .riff-new-footer-title {
    font-size: 18px;
  }
}

/* ================================
   アクセシビリティ対応
================================ */
.riff-new-footer-social-link:focus,
.riff-new-footer-menu a:focus {
  outline: 3px solid rgba(255, 255, 255, 0.5);
  outline-offset: 2px;
  border-radius: 4px;
}

.riff-new-footer-social-link:focus:not(:focus-visible),
.riff-new-footer-menu a:focus:not(:focus-visible) {
  outline: none;
}

.riff-new-footer-social-link:focus-visible,
.riff-new-footer-menu a:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.5);
  outline-offset: 2px;
  border-radius: 4px;
}

/* キーボードナビゲーション対応 */
.riff-new-footer-social-link:active,
.riff-new-footer-menu a:active {
  transform: scale(0.98);
}

/* 高コントラストモード対応 */
@media (prefers-contrast: high) {
  .riff-new-footer {
    border-top: 2px solid #ffffff;
  }

  .riff-new-footer-social-link {
    border: 2px solid #ffffff;
  }

  .riff-new-footer-menu a {
    border: 1px solid transparent;
  }

  .riff-new-footer-menu a:hover {
    border-color: #ffffff;
  }

  .riff-new-footer-logo {
    filter: brightness(0) invert(1) contrast(2);
  }
}

/* アニメーション削減対応 */
@media (prefers-reduced-motion: reduce) {
  .riff-new-footer-social-link,
  .riff-new-footer-menu a,
  .back-to-top,
  .back-to-top-button,
  .riff-new-footer-logo {
    transition: none !important;
  }

  .riff-new-footer-social-link:hover,
  .back-to-top-button:hover {
    transform: none !important;
  }
}

/* 印刷対応 */
@media print {
  .riff-new-footer {
    background: #ffffff !important;
    color: #000000 !important;
    page-break-inside: avoid;
    margin-top: 2cm;
    padding: 1cm 0 0 !important;
    border-top: 2px solid #000000;
  }

  .riff-new-footer-social,
  .back-to-top {
    display: none !important;
  }

  .riff-new-footer-title,
  .riff-new-footer-company-name,
  .riff-new-footer-address,
  .riff-new-footer-menu a {
    color: #000000 !important;
  }

  .riff-new-footer-nav {
    border-color: #000000 !important;
  }

  .riff-new-footer-menu li {
    border-color: #000000 !important;
  }

  .riff-new-footer-logo {
    filter: none !important;
  }

  .riff-new-footer-copyright {
    background: #f0f0f0 !important;
    color: #000000 !important;
    padding: 0.5cm 0 !important;
    margin: 0.5cm 0 0 0 !important;
  }

  .riff-new-footer-copyright p {
    color: #000000 !important;
  }
}

/* ダークモード対応 */
@media (prefers-color-scheme: dark) {
  .riff-new-footer-logo {
    filter: brightness(0) invert(1);
  }
}

/* ================================
   既存フッタースタイルとの競合回避
================================ */

/* 新しいフッターが使用される場合、既存のフッタースタイルを無効化 */
.riff-new-footer ~ .footer {
  display: none;
}

/* 既存のフッター関連クラスとの競合を防ぐ */
.riff-new-footer * {
  box-sizing: border-box;
}

/* 既存のCSSリセットが適用されない場合の対応 */
.riff-new-footer ul,
.riff-new-footer li {
  list-style: none;
  margin: 0;
  padding: 0;
}

.riff-new-footer a {
  text-decoration: none;
}

.riff-new-footer p,
.riff-new-footer h3 {
  margin: 0;
}

/* ================================
   パフォーマンス最適化
================================ */
.riff-new-footer-social-link,
.riff-new-footer-menu a {
  will-change: transform, background-color;
}

.back-to-top {
  will-change: opacity, transform;
}

.riff-new-footer-logo {
  will-change: filter;
}

/* ================================
   フルワイド時の追加スタイル
================================ */

/* フルワイド設定時のコンテナ調整 */
.riff-new-footer-fullwidth .riff-new-footer-container {
  max-width: 100% !important;
  padding-left: 40px !important;
  padding-right: 40px !important;
}

@media (max-width: 1024px) {
  .riff-new-footer-fullwidth .riff-new-footer-container {
    padding-left: 30px !important;
    padding-right: 30px !important;
  }
}

@media (max-width: 768px) {
  .riff-new-footer-fullwidth .riff-new-footer-container {
    padding-left: 20px !important;
    padding-right: 20px !important;
  }
}

@media (max-width: 480px) {
  .riff-new-footer-fullwidth .riff-new-footer-container {
    padding-left: 15px !important;
    padding-right: 15px !important;
  }
}

/* メニューのフルワイド時の調整 */
.riff-new-footer-fullwidth .riff-new-footer-menu {
  width: 100%;
  justify-content: flex-start;
}

/* コピーライトのフルワイド調整 */
.riff-new-footer-fullwidth .riff-new-footer-copyright::before {
  left: -100vw;
  right: -100vw;
}

/* ロゴサイズの動的調整クラス */
.riff-footer-logo-custom-size {
  width: var(--riff-footer-logo-width, 180px) !important;
  height: var(--riff-footer-logo-height, 50px) !important;
}

/* タイトル表示時の調整 */
.riff-new-footer-title {
  max-width: 100%;
  word-wrap: break-word;
  hyphens: auto;
}

/* ================================
   右余白修正用CSS（フッター関連の問題を解決）
================================ */

/* HTMLとBODYの横スクロール防止を強化 */
html {
  overflow-x: hidden !important;
  width: 100%;
  max-width: 100%;
}

body {
  overflow-x: hidden !important;
  width: 100%;
  max-width: 100%;
  position: relative;
}

/* フッターコピーライト部分の疑似要素を調整 */
.riff-new-footer-copyright::before {
  content: "";
  position: absolute;
  left: -100vw !important;
  right: -100vw !important;
  top: 0;
  bottom: 0;
  background: var(--riff-footer-copyright-bg-color, #1a252f);
  z-index: -1;
}

/* フルワイド時のコピーライト調整も安全な値に変更 */
.riff-new-footer-fullwidth .riff-new-footer-copyright::before {
  left: -100vw !important;
  right: -100vw !important;
}

/* フッター全体のコンテナも安全に調整 */
.riff-new-footer {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  position: relative;
}

.riff-new-footer-container {
  width: 100%;
  max-width: var(--riff-footer-fullwidth, 1200px);
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  overflow-x: hidden;
}

/* メインコンテンツ全体も安全に */
.main-content {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

/* 全体的なコンテナの安全性を確保 */
.container {
  max-width: var(--container-max-width);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--container-padding);
  overflow-x: hidden;
}

/* 追加の安全策：すべてのセクションで横スクロールを防止 */
.section,
.riff-who-section,
.riff-service-section,
.riff-news-section,
.riff-company-section,
.riff-blog-section,
.riff-who-section-fullwidth,
.riff-service-section-fullwidth,
.riff-news-section-fullwidth,
.riff-company-section-fullwidth,
.riff-blog-section-fullwidth,
.riff-footer-up-section {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

/* レスポンシブ対応での追加調整 */
@media (max-width: 768px) {
  html,
  body {
    overflow-x: hidden !important;
    max-width: 100vw !important;
  }

  .riff-new-footer-copyright::before {
    left: -50vw !important;
    right: -50vw !important;
  }
}

@media (max-width: 480px) {
  .riff-new-footer-copyright::before {
    left: -20vw !important;
    right: -20vw !important;
  }
}

/* ===================================
   モバイルメニュー関連のCSS
   =================================== */

/* モバイルメニューボタン */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  transition: all 0.3s ease;
  position: relative;
  z-index: 1001;
}

.mobile-menu-toggle:hover {
  background-color: rgba(0, 0, 0, 0.1);
  border-radius: 4px;
}

.mobile-menu-toggle:focus {
  outline: 2px solid #007cba;
  outline-offset: 2px;
}

/* ハンバーガーアイコン */
.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: currentColor;
  margin: 3px 0;
  transition: all 0.3s ease;
  transform-origin: center;
}

/* アクティブ状態のハンバーガーアイコン */
.mobile-menu-open .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-open .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ===================================
   モバイルメニュー関連のCSS（修正版）
   =================================== */

/* モバイルメニューボタン */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  transition: all 0.3s ease;
  position: relative;
  z-index: 1001;
}

.mobile-menu-toggle:hover {
  background-color: rgba(0, 0, 0, 0.1);
  border-radius: 4px;
}

.mobile-menu-toggle:focus {
  outline: 2px solid #007cba;
  outline-offset: 2px;
}

/* ハンバーガーアイコン */
.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: currentColor;
  margin: 3px 0;
  transition: all 0.3s ease;
  transform-origin: center;
}

/* アクティブ状態のハンバーガーアイコン */
.mobile-menu-open .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-open .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* モバイルナビゲーション */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: 1000;
  visibility: hidden;
  opacity: 0;
  transition: all 0.3s ease;
}

.mobile-nav[aria-hidden="false"] {
  visibility: visible;
  opacity: 1;
}

/* モバイルナビオーバーレイ */
.mobile-nav-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-nav[aria-hidden="false"] .mobile-nav-overlay {
  opacity: 1;
}

/* モバイルナビコンテンツ */
.mobile-nav-content {
  position: absolute;
  top: 0;
  right: 0;
  width: 320px;
  max-width: 85vw;
  height: 100vh;
  background-color: #ffffff;
  box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
  transform: translateX(100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.mobile-nav[aria-hidden="false"] .mobile-nav-content {
  transform: translateX(0);
}

/* モバイルナビヘッダー */
.mobile-nav-header {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid #e0e0e0;
  min-height: 60px;
}

.mobile-nav-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.mobile-nav-close:hover {
  background-color: rgba(0, 0, 0, 0.1);
}

.mobile-nav-close:focus {
  outline: 2px solid #007cba;
  outline-offset: 2px;
}

.close-icon {
  font-size: 24px;
  line-height: 1;
  color: #333;
}

/* モバイルナビメニュー */
.mobile-nav-menu {
  flex: 1;
  padding: 1rem 0;
}

.nav-mobile {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-mobile li {
  border-bottom: 1px solid #f0f0f0;
}

.nav-mobile li:last-child {
  border-bottom: none;
}

/* モバイルメニューアイテム */
.mobile-menu-item-wrapper {
  display: flex;
  align-items: center;
}

.mobile-menu-link {
  flex: 1;
  display: block;
  padding: 1rem 1.5rem;
  color: #333;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
}

.mobile-menu-link:hover,
.mobile-menu-link:focus {
  background-color: #f8f9fa;
  color: #007cba;
}

.nav-mobile .active > .mobile-menu-link {
  color: #007cba;
  background-color: #f0f8ff;
}

/* サブメニュートグル */
.mobile-submenu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-right: 0.5rem;
}

.mobile-submenu-toggle:hover {
  background-color: rgba(0, 0, 0, 0.1);
  border-radius: 4px;
}

.mobile-submenu-toggle:focus {
  outline: 2px solid #007cba;
  outline-offset: 2px;
}

.submenu-icon {
  transition: transform 0.2s ease;
}

.mobile-submenu-toggle.active .submenu-icon {
  transform: rotate(180deg);
}

/* モバイルサブメニュー */
.mobile-submenu {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  background-color: #f8f9fa;
}

.mobile-submenu li {
  border-bottom: 1px solid #e9ecef;
}

.mobile-submenu li:last-child {
  border-bottom: none;
}

.mobile-submenu .mobile-menu-link {
  padding-left: 2.5rem;
  font-weight: normal;
  color: #666;
}

.mobile-submenu .mobile-menu-link:hover,
.mobile-submenu .mobile-menu-link:focus {
  background-color: #e9ecef;
  color: #333;
}

/* モバイル連絡先 */
.mobile-contact {
  padding: 1.5rem;
  border-top: 1px solid #e0e0e0;
  background-color: #f8f9fa;
}

.mobile-contact-title {
  margin: 0 0 1rem 0;
  font-size: 1rem;
  font-weight: 600;
  color: #333;
}

.mobile-contact-item {
  display: flex;
  align-items: center;
  padding: 0.75rem 0;
  color: #666;
  text-decoration: none;
  transition: color 0.2s ease;
}

.mobile-contact-item:hover,
.mobile-contact-item:focus {
  color: #007cba;
}

.mobile-contact-item svg {
  margin-right: 0.75rem;
  flex-shrink: 0;
}

/* モバイルCTA */
.mobile-cta {
  padding: 1.5rem;
  border-top: 1px solid #e0e0e0;
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
}

/* ボディクラス：メニューオープン時 */
.mobile-menu-open {
  overflow: hidden;
}

/* レスポンシブ：モバイル表示 */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .navigation {
    display: none;
  }

  .header-cta {
    display: none;
  }
}

/* レスポンシブ：タブレット */
@media (min-width: 769px) and (max-width: 1024px) {
  .mobile-menu-toggle {
    display: flex;
  }

  .navigation {
    display: none;
  }
}

/* レスポンシブ：デスクトップ */
@media (min-width: 1025px) {
  .mobile-menu-toggle {
    display: none;
  }

  .mobile-nav {
    display: none;
  }
}

/* アクセシビリティ：動きを抑制する設定 */
@media (prefers-reduced-motion: reduce) {
  .mobile-nav,
  .mobile-nav-content,
  .mobile-nav-overlay,
  .hamburger-line,
  .submenu-icon {
    transition: none;
  }
}

/* ハイコントラストモード対応 */
@media (prefers-contrast: high) {
  .mobile-nav-content {
    border: 2px solid #000;
  }

  .mobile-menu-link,
  .mobile-contact-item {
    border: 1px solid transparent;
  }

  .mobile-menu-link:focus,
  .mobile-contact-item:focus {
    border-color: #000;
  }
}

/* ダークモード対応（オプション） */
@media (prefers-color-scheme: dark) {
  .mobile-nav-content {
    background-color: #1a1a1a;
    color: #ffffff;
  }

  .mobile-nav-header {
    border-bottom-color: #333;
  }

  .close-icon {
    color: #ffffff;
  }

  .mobile-menu-link {
    color: #ffffff;
  }

  .mobile-menu-link:hover,
  .mobile-menu-link:focus {
    background-color: #2a2a2a;
    color: #64b5f6;
  }

  .nav-mobile .active > .mobile-menu-link {
    color: #64b5f6;
    background-color: #1e3a5f;
  }

  .mobile-submenu {
    background-color: #2a2a2a;
  }

  .mobile-submenu li {
    border-bottom-color: #333;
  }

  .mobile-submenu .mobile-menu-link {
    color: #cccccc;
  }

  .mobile-contact {
    background-color: #2a2a2a;
    border-top-color: #333;
  }

  .mobile-contact-title {
    color: #ffffff;
  }

  .mobile-contact-item {
    color: #cccccc;
  }

  .mobile-contact-item:hover,
  .mobile-contact-item:focus {
    color: #64b5f6;
  }

  .mobile-cta {
    border-top-color: #333;
  }
}

/* ================================
   BLOGセクション スライダー修正CSS
   ================================ */

/* スライダートラックの基本設定修正 */
.riff-blog-slider-track {
  width: 100% !important; /* 33.333%を100%に上書き */
  display: flex !important;
  transition: transform 0.4s ease !important;
  position: relative !important;
}

/* スライダーアイテムの基本設定 */
.riff-blog-slider-track .riff-blog-item-enhanced,
.riff-blog-slider-track .riff-blog-item-new {
  flex: 0 0 auto !important;
  margin-right: 30px !important;
  box-sizing: border-box !important;
}

/* 最後のアイテムのマージン調整 */
.riff-blog-slider-track .riff-blog-item-enhanced:last-child,
.riff-blog-slider-track .riff-blog-item-new:last-child {
  margin-right: 0 !important;
}

/* スライダーコンテナの設定 */
.riff-blog-slider-container {
  overflow: hidden !important;
  position: relative !important;
  width: 100% !important;
}

/* スライダーのナビゲーションボタン対応 */
.riff-blog-slider-nav {
  display: flex !important;
  justify-content: center !important;
  gap: 15px !important;
  margin-top: 40px !important;
}

.riff-blog-slider-btn {
  width: 48px !important;
  height: 48px !important;
  border-radius: 50% !important;
  background: var(--gray-200) !important;
  border: none !important;
  cursor: pointer !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: all 0.3s ease !important;
  color: var(--text-color) !important;
}

.riff-blog-slider-btn:hover {
  background: var(--primary-color) !important;
  color: var(--white) !important;
  transform: translateY(-2px) !important;
}

.riff-blog-slider-btn:disabled {
  opacity: 0.5 !important;
  cursor: not-allowed !important;
  transform: none !important;
}

.riff-blog-slider-btn svg {
  width: 20px !important;
  height: 20px !important;
}

/* ドットインジケーター */
.riff-blog-slider-dots {
  display: flex !important;
  justify-content: center !important;
  gap: 8px !important;
  margin-top: 30px !important;
}

.riff-blog-slider-dot {
  width: 12px !important;
  height: 12px !important;
  border-radius: 50% !important;
  background: var(--gray-300) !important;
  border: none !important;
  cursor: pointer !important;
  transition: all 0.3s ease !important;
}

.riff-blog-slider-dot.active {
  background: var(--primary-color) !important;
  transform: scale(1.2) !important;
}

.riff-blog-slider-dot:hover {
  background: var(--accent-color) !important;
}

/* ================================
   レスポンシブ対応
   ================================ */

/* タブレット大（1024px以下） */
@media (max-width: 1024px) {
  .riff-blog-slider-track .riff-blog-item-enhanced,
  .riff-blog-slider-track .riff-blog-item-new {
    width: calc(50% - 15px) !important; /* 2列表示 */
    margin-right: 30px !important;
  }
}

/* タブレット（768px以下） */
@media (max-width: 768px) {
  .riff-blog-slider-track .riff-blog-item-enhanced,
  .riff-blog-slider-track .riff-blog-item-new {
    width: calc(50% - 10px) !important; /* 2列表示（間隔縮小） */
    margin-right: 20px !important;
  }

  /* ナビゲーションボタンを小さく */
  .riff-blog-slider-btn {
    width: 40px !important;
    height: 40px !important;
  }

  .riff-blog-slider-btn svg {
    width: 16px !important;
    height: 16px !important;
  }
}

/* スマートフォン（480px以下） */
@media (max-width: 480px) {
  .riff-blog-slider-track .riff-blog-item-enhanced,
  .riff-blog-slider-track .riff-blog-item-new {
    width: 100% !important; /* 1列表示 */
    margin-right: 15px !important;
  }

  /* ナビゲーション調整 */
  .riff-blog-slider-nav {
    margin-top: 30px !important;
    gap: 10px !important;
  }

  .riff-blog-slider-btn {
    width: 36px !important;
    height: 36px !important;
  }

  .riff-blog-slider-btn svg {
    width: 14px !important;
    height: 14px !important;
  }

  /* ドットインジケーター調整 */
  .riff-blog-slider-dots {
    gap: 6px !important;
    margin-top: 20px !important;
  }

  .riff-blog-slider-dot {
    width: 10px !important;
    height: 10px !important;
  }
}

/* 超小画面（360px以下） */
@media (max-width: 360px) {
  .riff-blog-slider-track .riff-blog-item-enhanced,
  .riff-blog-slider-track .riff-blog-item-new {
    margin-right: 10px !important;
  }

  .riff-blog-slider-btn {
    width: 32px !important;
    height: 32px !important;
  }

  .riff-blog-slider-btn svg {
    width: 12px !important;
    height: 12px !important;
  }
}

/* ================================
   既存のBLOGセクションとの競合回避
   ================================ */

/* 通常のグリッド表示には影響を与えない */
.riff-blog-grid-enhanced .riff-blog-item-enhanced,
.riff-blog-grid-new .riff-blog-item-new {
  width: auto !important;
  flex: none !important;
  margin-right: 0 !important;
}

/* フィルター機能がある場合の調整 */
.riff-blog-section-enhanced .riff-blog-grid-enhanced {
  display: grid !important;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)) !important;
  gap: 30px !important;
}

/* ================================
   アクセシビリティ対応
   ================================ */

.riff-blog-slider-btn:focus,
.riff-blog-slider-dot:focus {
  outline: 3px solid rgba(0, 124, 186, 0.3) !important;
  outline-offset: 2px !important;
}

.riff-blog-slider-btn:focus:not(:focus-visible),
.riff-blog-slider-dot:focus:not(:focus-visible) {
  outline: none !important;
}

/* キーボードナビゲーション対応 */
.riff-blog-slider-btn:active {
  transform: scale(0.95) !important;
}

/* ================================
   アニメーション無効化対応
   ================================ */

@media (prefers-reduced-motion: reduce) {
  .riff-blog-slider-track,
  .riff-blog-slider-btn,
  .riff-blog-slider-dot {
    transition: none !important;
    animation: none !important;
  }

  .riff-blog-slider-btn:hover,
  .riff-blog-slider-dot.active {
    transform: none !important;
  }
}

/* ================================
   高コントラストモード対応
   ================================ */

@media (prefers-contrast: high) {
  .riff-blog-slider-btn {
    border: 2px solid #000000 !important;
  }

  .riff-blog-slider-btn:hover {
    background: #000000 !important;
    color: #ffffff !important;
  }

  .riff-blog-slider-dot {
    border: 2px solid #000000 !important;
  }

  .riff-blog-slider-dot.active {
    background: #000000 !important;
  }
}

/* ================================
   印刷対応
   ================================ */

@media print {
  .riff-blog-slider-nav,
  .riff-blog-slider-dots {
    display: none !important;
  }

  .riff-blog-slider-track {
    display: block !important;
    width: 100% !important;
    transform: none !important;
  }

  .riff-blog-slider-track .riff-blog-item-enhanced,
  .riff-blog-slider-track .riff-blog-item-new {
    width: 100% !important;
    margin: 0 0 1cm 0 !important;
    break-inside: avoid !important;
    flex: none !important;
    display: block !important;
  }
}

/* ================================
   パフォーマンス最適化
   ================================ */

.riff-blog-slider-track {
  will-change: transform !important;
}

.riff-blog-slider-btn,
.riff-blog-slider-dot {
  will-change: transform, background-color !important;
}