@charset "UTF-8";

/* =========================================
   変数の定義（テーマカラー）
========================================= */
:root {
    --brand-dark: #1f2937;
    --brand-main: #ffca00;
    --brand-accent: #ff891f;
    --bg-light: #f8f9fa;
    --text-main: #374151;
    --text-light: #6b7280;
}

/* =========================================
   リセット＆ベーススタイル
========================================= */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { 
    font-family: 'Zen Maru Gothic', 'Noto Sans JP', sans-serif; 
    color: var(--text-main); 
    background-color: #fff; 
    line-height: 1.6; 
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ユーティリティ */
.container { max-width: 1000px; margin: 0 auto; padding: 0 20px; }
.text-center { text-align: center; }
.text-gradient { background: linear-gradient(90deg, var(--brand-accent), var(--brand-main)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;  color: transparent;}
.bg-light { background-color: var(--bg-light); }
.text-accent { color: var(--brand-accent); }
.text-red { color: #ef4444; }
.text-link {
    color: var(--brand-accent);
    text-decoration: underline;
    font-weight: 700;
    transition: opacity 0.3s ease;
    display: inline-flex;
    align-items: center;
}

.text-link:hover {
    opacity: 0.7;
    text-decoration: none;
}

/* ボタン */
.btn {  display: inline-flex; align-items: center; justify-content: center;  background: linear-gradient(90deg, #ff9d00, #ff6b00);  color: #fff; font-weight: 900; border-radius: 50px;  transition: all 0.3s ease;  box-shadow: 0 4px 10px rgba(255, 107, 0, 0.3); }
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 15px rgba(255, 157, 0, 0.4); }
.btn-large { padding: 20px 50px; font-size: 1.3rem; }
.btn-small { padding: 10px 24px; font-size: 0.95rem; }

/* タグ（角丸） */
.tag { display: inline-block; vertical-align: middle; padding: 4px 16px; border-radius: 20px; font-weight: 900; font-size: 0.85rem; margin: 0 4px; text-align: center;}
.tag-main { background-color: var(--brand-main); color: var(--brand-dark); }
.tag-accent { background-color: var(--brand-accent); color: #fff; }

/* =========================================
   ヘッダー
========================================= */
.header { position: fixed; top: 0; left: 0; width: 100%; height: 80px; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(8px); z-index: 100; box-shadow: 0 1px 3px rgba(0,0,0,0.05); display: flex; align-items: center; }
.header-inner { display: flex; justify-content: space-between; align-items: center; width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.header-logo img { height: 24px; }
.desktop-nav { display: none; align-items: center; gap: 30px; font-weight: 700; color: #4b5563; }
.desktop-nav a:not(.btn):hover { color: var(--brand-accent); }
.mobile-menu-btn {  display: flex;  flex-direction: column;  justify-content: space-between;  width: 28px;  height: 20px;  background: none; 
 border: none;  cursor: pointer;  padding: 0; z-index: 105; }
.mobile-menu-btn .bar { width: 100%; height: 3px; background-color: var(--brand-dark); border-radius: 3px; transition: all 0.3s ease;}
.mobile-menu-btn.is-active .bar:nth-child(1) { transform: translateY(8.5px) rotate(45deg);}
.mobile-menu-btn.is-active .bar:nth-child(2) { opacity: 0;}
.mobile-menu-btn.is-active .bar:nth-child(3) { transform: translateY(-8.5px) rotate(-45deg);}

/* モバイルメニュー */
.mobile-nav { display: none; position: absolute; top: 80px; left: 0; width: 100%; background: #fff; border-top: 1px solid #f3f4f6; box-shadow: 0 4px 6px rgba(0,0,0,0.05); padding: 10px 20px 20px; z-index: 99; }
.mobile-nav.is-active { display: block; }
.mobile-nav a { display: block; padding: 15px; font-weight: 700; border-bottom: 1px solid #f3f4f6; }
.mobile-nav a.btn { margin-top: 15px; text-align: center; border: none; }

/* =========================================
   ヒーローセクション
========================================= */
.hero { position: relative; min-height: 85vh; display: flex; align-items: center; justify-content: center; padding: 100px 20px 60px; text-align: center; overflow: hidden; }
#network-canvas { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 0; opacity: 0.6; pointer-events: none; }
.hero-content { position: relative; z-index: 10; max-width: 800px; }
.hero-catch { font-weight: 900; font-size: 1.2rem; letter-spacing: 0.1em; color: var(--brand-dark); margin-bottom: 20px; }
.hero-logo img { max-width: 100%; height: auto; margin-bottom: 40px; filter: drop-shadow(0 10px 15px rgba(0,0,0,0.1)); }
.hero-desc { font-size: 1.2rem; font-weight: 700; line-height: 2; margin-bottom: 20px; }

/* =========================================
   共通セクションスタイル
========================================= */
.section { padding: 90px 0; }
.section-title { font-size: 2.2rem; font-weight: 900; color: var(--brand-dark); text-align: center; margin-bottom: 15px; }
.section-subtitle { text-align: center; font-size: 1.1rem; font-weight: 700; margin-bottom: 50px; color: var(--text-light); }

/* =========================================
   特典セクション
========================================= */
.benefits-grid { display: grid; grid-template-columns: 1fr; gap: 30px; margin-bottom: 20px; }
.benefit-card { background: #fff; border-radius: 12px; padding: 30px; box-shadow: 0 5px 15px rgba(0,0,0,0.03); }
.benefit-card.main { border: 2px solid var(--brand-main); }
.benefit-card.accent { border: 2px solid var(--brand-accent); }
.benefit-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 25px; }
.benefit-title { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.benefit-title .tag { margin: 0; padding: 6px 20px; font-size: 1rem; }
.benefit-title .sub-text { font-size: 0.85rem; color: var(--text-light); font-weight: 700; padding-left: 4px; }
.benefit-icon { width: 85px; height: 85px; flex-shrink: 0; }
.benefit-icon img { width: 100%; height: 100%; object-fit: contain; }
.benefit-price { text-align: center; border-radius: 12px; padding: 30px 10px; }
.benefit-card.main .benefit-price { background-color: #fffdf5; border: 1px solid #fef08a; }
.benefit-card.accent .benefit-price { background-color: #fffaf5; border: 1px solid #fed7aa; }
.price-label { font-size: 1.05rem; font-weight: 700; color: var(--brand-dark); margin-bottom: 8px; }
.price-value { font-size: 4rem; font-weight: 900; color: var(--brand-dark); line-height: 1; font-family: 'Arial', sans-serif; letter-spacing: -1px; }
.price-value span { font-size: 1.5rem; font-family: 'Zen Maru Gothic', 'Noto Sans JP', sans-serif; letter-spacing: normal; margin-left: 5px; }
.gift-image-container { display: flex; flex-direction: column; align-items: center; justify-content: center;flex-shrink:0; width: 160px;}
.gift-appeal-img { width: 140px; height: 140px; object-fit: contain; display: block; margin-bottom: 15px;}
.gift-annotation { display: flex; flex-direction: column; align-items: center; text-align: center; line-height: 1.4;}
.gift-sub { font-size: 0.85rem; color: #6b7280; font-weight: 700;}
.gift-main { font-size: 1.2rem; font-weight: 900; color: var(--brand-dark);}

/* =========================================
   概要セクション
========================================= */
.overview-box { background: var(--bg-light); border-radius: 24px; padding: 50px; }
.overview-list { display: flex; flex-direction: column; }
.overview-item { border-bottom: 1px dashed #d1d5db; padding: 30px 0; }
.overview-item:first-child { padding-top: 0; }
.overview-item:last-child { border-bottom: none; padding-bottom: 0; }
.overview-head { display: flex; align-items: center; font-size: 1.3rem; font-weight: 900; color: var(--brand-dark); margin-bottom: 15px; }
.overview-head i { color: #9ca3af; margin-right: 15px; font-size: 1.5rem; width: 24px; text-align: center; }
.overview-body { padding-left: 0; }
.overview-target-box { display: flex; flex-direction: column; gap: 15px; }
.target-card { background: #fff; border: 1px solid #e5e7eb; border-radius: 12px; padding: 15px 20px; display: flex; align-items: center; gap: 15px; font-weight: 900; font-size: 1.1rem; }
.condition-card { background: #fff; border: 1px solid #e5e7eb; border-radius: 12px; padding: 15px 20px; font-weight: 700; line-height: 1.6; margin-bottom: 10px; }

/* =========================================
   流れセクション
========================================= */
.flow-container { position: relative; padding-left: 35px; margin-top: 40px; }
.flow-container::before { content: ''; position: absolute; top: 0; bottom: -80px; left: 33px; width: 3px; background: var(--brand-dark); border-radius: 3px; }
.flow-step { display: flex; align-items: flex-start; margin-bottom: 40px; position: relative; z-index: 10; }
.step-number { width: 68px; height: 68px; background: #fff; border: 4px solid var(--brand-dark); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; font-weight: 900; flex-shrink: 0; margin-right: 25px; margin-left: -34px; box-shadow: 0 4px 6px rgba(0,0,0,0.1); color: var(--brand-dark); }
.step-card { background: #fff; border: 2px solid #f3f4f6; border-radius: 16px; padding: 30px; flex-grow: 1; box-shadow: 0 4px 15px rgba(0,0,0,0.03); }
.step-card h3 { font-size: 1.4rem; font-weight: 900; margin-bottom: 15px; display: flex; align-items: center; }
.step-card h3 i { color: #6b7280; margin-right: 10px; }
.step-card p { font-weight: 500; }
.step-alert { background: #fef2f2; border-left: 4px solid #ef4444; padding: 15px; border-radius: 0 8px 8px 0; margin-top: 15px; font-weight: 700; font-size: 0.9rem; display: flex; align-items: flex-start; gap: 10px; }

/* ギフトアピール枠 */
.gift-appeal { 
    background: linear-gradient(135deg, #fffbeb, #fff7ed); 
    border: 1px solid #ffedd5; 
    border-radius: 24px; 
    padding: 50px; 
    margin-top: 80px; 
    display: flex; 
    justify-content: center;
    gap: 100px;
    align-items: center; 
    position: relative; 
    overflow: hidden; 
    box-shadow: 0 10px 25px rgba(255, 137, 31, 0.1); 
}
.gift-appeal-text h3 { font-size: 2.2rem; font-weight: 900; margin-bottom: 20px; }
.gift-appeal-text p { background: rgba(255,255,255,0.9); backdrop-filter: blur(4px); padding: 20px 30px; border-radius: 12px; font-weight: 700; border: 1px solid #fff; display: inline-block; line-height: 1.8; }
.gift-circle { width: 160px; height: 160px; background: #fff; border: 4px solid #fef3c7; border-radius: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center; box-shadow: 0 10px 25px rgba(0,0,0,0.1); z-index: 10; animation: float 3s ease-in-out infinite; }
.gift-circle i { font-size: 3rem; color: var(--brand-accent); margin-bottom: 10px; }

/* =========================================
   注意事項・フッター
========================================= */
.notes-box { background: #fff; border: 2px solid #e5e7eb; border-radius: 20px; padding: 40px; }
.notes-box h3 { font-size: 1.2rem; font-weight: 900; margin-bottom: 20px; display: flex; align-items: center; color: var(--brand-dark); }
.notes-box h3 i { color: #9ca3af; margin-right: 10px; }
.notes-box ul { padding-left: 20px; list-style-type: disc; font-weight: 500; display: flex; flex-direction: column; gap: 12px; font-size: 0.95rem; color: #4b5563; }

.footer { background: #111827; color: #9ca3af; text-align: center; padding: 40px 20px; border-top: 4px solid var(--brand-accent); font-weight: 500; font-size: 0.9rem; }

/* =========================================
   アニメーション用クラス
========================================= */
.fade-in-up { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-in-up.visible { opacity: 1; transform: translateY(0); }
@keyframes float { 0% { transform: translateY(0px); } 50% { transform: translateY(-10px); } 100% { transform: translateY(0px); } }

/* =========================================
   レスポンシブ（スマホ対応等）
========================================= */
@media (min-width: 768px) {
    .desktop-nav { display: flex; }
    .mobile-menu-btn { display: none; }
    .benefits-grid { grid-template-columns: 1fr 1fr; }
    .hero-desc { font-size: 1.3rem; }
    .overview-item { display: flex; align-items: flex-start; }
    .overview-head { width: 220px; flex-shrink: 0; margin-bottom: 0; padding-top: 16px; }
    .overview-item:first-child .overview-body { padding-top: 16px; }
    .overview-body { flex: 1; padding-left: 20px; }
    .target-card { flex-direction: row; }
}

@media (max-width: 767px) {
    .section-title { font-size: 1.8rem; }
    .flow-container { padding-left: 0; }
    .flow-container::before { display: none; }
    .flow-step { flex-direction: column; align-items: center; text-align: center; }
    .step-number { margin: 0 0 15px 0; }
    .step-alert { text-align: left; }
    .gift-appeal { flex-direction: column; text-align: center; padding: 30px; }
    .gift-circle { margin-top: 30px; }
    .overview-box { padding: 30px 20px; }
    .target-card { flex-direction: column; text-align: center; }
    .gift-appeal { flex-direction: column; text-align: center; padding: 40px 20px; gap: 40px; }
    .gift-image-container { margin-top: 30px; }
    .btn-large { padding: 14px 30px; font-size: 1.05rem; width: 100%; max-width: 300px; box-sizing: border-box; }
}