:root {
            --nav-bg: #0b1f3a;
            --accent: #1f8f62;
            --accent-hover: #178556;
            --bg: #f7f9fc;
            --text: #1c2430;
            --muted: #5a6370;
            --card: #ffffff;
            --warning: #ff6b35;
            --success: #10b981;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body { font-family: "Noto Sans JP", "Hiragino Sans", "Segoe UI", Arial, sans-serif; color: var(--text); background: var(--bg); line-height: 1.7; }

        /* Header & Navigation */
header { position: sticky; top: 0; z-index: 100; background: var(--nav-bg); color: #fff; box-shadow: 0 2px 20px rgba(0,0,0,0.15); }
.nav { display: flex; align-items: center; justify-content: space-between; padding: 14px 32px; max-width: 1400px; margin: 0 auto; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; letter-spacing: 0.02em; color: #fff; text-decoration: none; }
.brand-logo { height: 32px; width: auto; display: block; }
.brand-text { color: #fff; }
.nav-links { display: flex; align-items: center; gap: 8px; }
        .nav-links a { color: #e8edf7; padding: 8px 14px; text-decoration: none; font-size: 14px; border-radius: 6px; transition: all 0.2s; }
        .nav-links a:hover { background: rgba(255,255,255,0.1); color: #fff; }
        .nav-cta { background: var(--accent) !important; color: #fff !important; font-weight: 600; }
        .nav-cta:hover { background: var(--accent-hover) !important; }

        /* Mobile Menu */
        .mobile-menu-btn { display: none; background: none; border: none; color: #fff; font-size: 24px; cursor: pointer; padding: 8px; }

        /* Promo Banner */
        .promo-banner { background: linear-gradient(90deg, #ff6b35, #ff8c42); color: #fff; text-align: center; padding: 12px 16px; font-weight: 600; }
        .promo-banner .countdown { display: inline-flex; gap: 8px; margin-left: 12px; }
        .promo-banner .time-box { background: rgba(0,0,0,0.2); padding: 4px 10px; border-radius: 4px; font-size: 14px; }

        /* Hero Section */
.hero { padding: 80px 24px 70px; background: linear-gradient(135deg, #0c203f 0%, #12305a 50%, #1a4580 100%); color: #fff; text-align: center; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E"); }
.hero .content { position: relative; z-index: 1; }
.hero h1 { font-size: clamp(26px, 5vw, 40px); margin: 0 0 20px; line-height: 1.3; }
.hero p { max-width: 720px; margin: 0 auto 32px; color: #c8d9ff; font-size: clamp(15px, 2.5vw, 18px); }
.hero .buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-highlight { margin: 18px auto 0; max-width: 720px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18); border-radius: 14px; padding: 14px 16px; display: flex; gap: 10px; align-items: center; justify-content: center; color: #e8f3ff; }
.hero-highlight .badge { display: inline-block; background: #1f8f62; color: #fff; padding: 4px 10px; border-radius: 999px; font-weight: 700; font-size: 12px; letter-spacing: 0.05em; }
.hero-highlight span { font-size: 14px; line-height: 1.6; }

        /* Buttons */
        .btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: 15px; transition: all 0.25s; border: none; cursor: pointer; }
        .btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 14px rgba(31, 143, 98, 0.4); }
        .btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(31, 143, 98, 0.5); }
        .btn-secondary { background: rgba(255,255,255,0.1); color: #fff; border: 2px solid rgba(255,255,255,0.3); }
        .btn-secondary:hover { background: rgba(255,255,255,0.2); border-color: rgba(255,255,255,0.5); }
        .btn-outline { background: transparent; color: var(--accent); border: 2px solid var(--accent); }
        .btn-outline:hover { background: var(--accent); color: #fff; }

        /* Stats Bar */
        .stats-bar { background: #fff; padding: 32px 24px; box-shadow: 0 4px 20px rgba(0,0,0,0.06); }
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; max-width: 1000px; margin: 0 auto; text-align: center; }
        .stat-item { }
        .stat-number { font-size: clamp(28px, 4vw, 42px); font-weight: 800; color: var(--accent); line-height: 1.2; }
        .stat-label { font-size: 13px; color: var(--muted); margin-top: 4px; }

        /* Sections */
        .section { padding: 80px 24px; }
        .section h2 { text-align: center; margin-bottom: 16px; font-size: clamp(22px, 4vw, 30px); color: var(--nav-bg); }
        .section-subtitle { text-align: center; color: var(--muted); margin-bottom: 48px; max-width: 600px; margin-left: auto; margin-right: auto; }
        .content { max-width: 1200px; margin: 0 auto; }

        /* Cards */
        .cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
        .card { background: var(--card); border-radius: 16px; padding: 28px; box-shadow: 0 8px 30px rgba(12, 32, 63, 0.08); transition: all 0.3s; border: 1px solid rgba(0,0,0,0.04); }
        .card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(12, 32, 63, 0.12); }
        .card-icon { width: 56px; height: 56px; background: linear-gradient(135deg, #e8f5f0, #d0ebe2); border-radius: 14px; display: flex; align-items: center; justify-content: center; margin-bottom: 18px; font-size: 26px; }
        .card h3 { margin: 0 0 12px; color: var(--nav-bg); font-size: 18px; }
        .card p { color: var(--muted); font-size: 14px; line-height: 1.7; margin: 0; }

        /* Plan Cards */
        .plan-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
        .plan-card { background: var(--card); border-radius: 16px; padding: 32px 28px; box-shadow: 0 8px 30px rgba(12, 32, 63, 0.08); transition: all 0.3s; border: 2px solid transparent; position: relative; overflow: hidden; }
        .plan-card:hover { transform: translateY(-4px); box-shadow: 0 16px 50px rgba(12, 32, 63, 0.15); }
        .plan-card.featured { border-color: var(--accent); }
        .plan-card.featured::before { content: '人気No.1'; position: absolute; top: 16px; right: -32px; background: var(--accent); color: #fff; padding: 6px 40px; font-size: 12px; font-weight: 700; transform: rotate(45deg); }
        .plan-card.performance { border-color: var(--warning); }
        .plan-card.performance::before { content: '成果報酬型'; position: absolute; top: 16px; right: -28px; background: var(--warning); color: #fff; padding: 6px 40px; font-size: 12px; font-weight: 700; transform: rotate(45deg); }
        .plan-name { font-size: 20px; font-weight: 700; color: var(--nav-bg); margin-bottom: 8px; }
        .plan-volume { font-size: 14px; color: var(--muted); margin-bottom: 16px; }
        .plan-price { font-size: 32px; font-weight: 800; color: var(--accent); margin-bottom: 6px; }
        .plan-price .currency { font-size: 16px; font-weight: 600; }
        .plan-price .period { font-size: 14px; color: var(--muted); font-weight: 400; }
        .plan-original-price { font-size: 14px; color: #999; text-decoration: line-through; margin-bottom: 8px; }
        .plan-discount { display: inline-block; background: #fff0eb; color: var(--warning); padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: 700; margin-bottom: 12px; }
        .plan-features { list-style: none; padding: 0; margin: 20px 0; }
        .plan-features li { padding: 8px 0; font-size: 14px; color: var(--text); display: flex; align-items: center; gap: 10px; }
        .plan-features li::before { content: '✓'; color: var(--accent); font-weight: 700; }
        .plan-card .btn { width: 100%; justify-content: center; margin-top: 8px; }

        /* Steps */
        .steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; counter-reset: steps; }
        .step { background: var(--card); border-radius: 16px; padding: 28px; box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06); position: relative; }
        .step-number { position: absolute; top: -12px; left: 24px; width: 36px; height: 36px; background: var(--accent); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 16px; }
        .step h3 { margin: 12px 0 10px; font-size: 17px; color: var(--nav-bg); }
        .step p { color: var(--muted); font-size: 14px; margin: 0; }

        /* Trust Section */
        .trust-section { background: linear-gradient(180deg, #f0f4f8, #fff); }
        .trust-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 32px; }
        .trust-card { text-align: center; padding: 32px; }
        .trust-icon { font-size: 48px; margin-bottom: 16px; }
        .trust-card h3 { font-size: 18px; color: var(--nav-bg); margin-bottom: 10px; }
        .trust-card p { color: var(--muted); font-size: 14px; }

        /* Testimonials */
        .testimonials { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
        .testimonial { background: #fff; border-radius: 16px; padding: 28px; box-shadow: 0 4px 20px rgba(0,0,0,0.06); }
        .testimonial-content { font-size: 15px; color: var(--text); line-height: 1.8; margin-bottom: 20px; position: relative; padding-left: 24px; }
        .testimonial-content::before { content: '"'; position: absolute; left: 0; top: -8px; font-size: 48px; color: var(--accent); opacity: 0.3; font-family: serif; }
        .testimonial-author { display: flex; align-items: center; gap: 12px; }
        .testimonial-avatar { width: 48px; height: 48px; background: linear-gradient(135deg, var(--accent), #2ecc71); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 700; font-size: 18px; }
        .testimonial-info { }
        .testimonial-name { font-weight: 600; color: var(--nav-bg); font-size: 15px; }
        .testimonial-company { font-size: 13px; color: var(--muted); }

        /* Payment Section */
        .payment-box { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }

        /* Contact Section */
        .contact { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; }
        form label { display: block; font-weight: 600; margin-bottom: 8px; font-size: 14px; }
        form input, form textarea { width: 100%; padding: 12px 16px; border: 2px solid #e5e9ef; border-radius: 8px; font-size: 15px; transition: border-color 0.2s; }
        form input:focus, form textarea:focus { outline: none; border-color: var(--accent); }
        form textarea { min-height: 120px; resize: vertical; }
        .errors { background: #ffe5e5; color: #a12626; border: 1px solid #f3b1b1; padding: 12px 16px; border-radius: 10px; margin-bottom: 16px; }

        /* Footer */
        footer { background: var(--nav-bg); color: #fff; padding: 48px 24px 32px; }
        .footer-content { max-width: 1200px; margin: 0 auto; text-align: center; }
        .footer-brand { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
        .footer-links { display: flex; justify-content: center; gap: 24px; margin: 20px 0; flex-wrap: wrap; }
        .footer-links a { color: #a8b5c8; text-decoration: none; font-size: 14px; transition: color 0.2s; }
        .footer-links a:hover { color: #fff; }
        .footer-copy { color: #6b7a8f; font-size: 13px; margin-top: 24px; }

        /* Back to Top */
        .back-to-top { position: fixed; bottom: 24px; right: 24px; width: 48px; height: 48px; background: var(--accent); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; text-decoration: none; box-shadow: 0 4px 16px rgba(31,143,98,0.4); opacity: 0; visibility: hidden; transition: all 0.3s; z-index: 99; }
        .back-to-top.visible { opacity: 1; visibility: visible; }
        .back-to-top:hover { transform: translateY(-4px); }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
        }

        @media (max-width: 768px) {
            .nav { padding: 12px 18px; }
            .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--nav-bg); flex-direction: column; padding: 16px; gap: 4px; border-top: 1px solid rgba(255,255,255,0.1); }
            .nav-links.active { display: flex; }
            .nav-links a { padding: 12px 16px; }
            .mobile-menu-btn { display: block; }
            .hero { padding: 60px 20px 50px; }
            .section { padding: 60px 20px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-number { font-size: 28px; }
            .promo-banner { font-size: 14px; padding: 10px 12px; }
            .promo-banner .countdown { display: flex; margin-left: 0; margin-top: 8px; }
        }

        @media (max-width: 480px) {
            .nav { padding: 10px 14px; }
            .brand { font-size: 15px; }
            .hero h1 { font-size: 24px; }
            .hero .buttons { flex-direction: column; width: 100%; }
            .hero .buttons .btn { width: 100%; justify-content: center; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
            .stat-number { font-size: 24px; }
            .stat-label { font-size: 11px; }
            .cards, .plan-cards { grid-template-columns: 1fr; }
            .steps { grid-template-columns: 1fr; }
            .plan-card.featured::before, .plan-card.performance::before { font-size: 10px; padding: 4px 32px; right: -36px; }
        }