* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
    background: #0a0a0a;
    color: #f5f5f5;
    line-height: 1.7;
}

html {
    scroll-behavior: smooth;
}

a {
    color: inherit;
}

/* ヒーロー */
.hero-sub {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 32px 24px;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
}

.logo-text {
    font-weight: 900;
    letter-spacing: 0.05em;
    font-size: 18px;
}

.nav-links {
    display: flex;
    gap: 28px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    font-size: 13px;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.nav-links a:hover {
    opacity: 1;
}

.hero-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
}

/* .hero-eyebrow {
    font-size: 12px;
    letter-spacing: 0.2em;
    opacity: 0.5;
    margin-bottom: 24px;
} */

.hero-eyebrow {
    font-size: 12px;
    letter-spacing: 0.2em;
    color: #e67e22;
    margin-bottom: 24px;
}

/* .hero-content h1 {
    font-size: 64px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
} */

.hero-content h1 {
    font-size: 88px;
    font-weight: 900;
    line-height: 1.05;
    margin-bottom: 24px;
    letter-spacing: -0.03em;
}

.hero-sub {
    font-size: 16px;
    opacity: 0.7;
    margin-bottom: 40px;
}

.btn {
    display: inline-block;
    background: #f5f5f5;
    color: #0a0a0a;
    text-decoration: none;
    padding: 16px 36px;
    font-weight: bold;
    font-size: 14px;
    letter-spacing: 0.05em;
    transition: opacity 0.2s;
    width: fit-content;
}

.btn:hover {
    opacity: 0.8;
}

.btn-light {
    background: #f5f5f5;
    color: #0a0a0a;
}

section {
    max-width: 1100px;
    margin: 0 auto;
    padding: 100px 24px;
}

.section-label {
    font-size: 12px;
    letter-spacing: 0.2em;
    opacity: 0.5;
    margin-bottom: 16px;
}

.section-label {
    font-size: 12px;
    letter-spacing: 0.2em;
    color: #e67e22;
    margin-bottom: 16px;
}

section h2 {
    font-size: 36px;
    font-weight: 900;
    margin-bottom: 56px;
    letter-spacing: -0.01em;
}

/* features */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.sub-feature-item {
    border-top: 1px solid rgba(245,245,245,0.2);
    padding-top: 24px;
}

/* .feature-num {
    display: block;
    font-size: 13px;
    opacity: 0.4;
    margin-bottom: 16px;
} */

.feature-num {
    display: block;
    font-size: 48px;
    font-weight: 900;
    opacity: 0.15;
    margin-bottom: 8px;
    line-height: 1;
}

.sub-feature-item h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.sub-feature-item p {
    font-size: 14px;
    opacity: 0.6;
}

/* price */
.price-list {
    display: flex;
    flex-direction: column;
}

.price-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 32px 0;
    border-bottom: 1px solid rgba(245,245,245,0.15);
    gap: 24px;
    flex-wrap: wrap;
}

.price-row.featured {
    opacity: 1;
}

.price-row:not(.featured) {
    opacity: 0.6;
}

.price-name {
    font-size: 24px;
    font-weight: 900;
    min-width: 140px;
}

/* .price-name {
    font-size: 32px;
    font-weight: 900;
    min-width: 140px;
    letter-spacing: -0.02em;
} */

.price-desc {
    font-size: 14px;
    flex: 1;
    min-width: 200px;
}

.price-value {
    font-size: 22px;
    font-weight: bold;
}

.price-value small {
    font-size: 13px;
    font-weight: normal;
    opacity: 0.6;
}

/* flow */
.flow-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.flow-item {
    text-align: center;
}

.flow-num {
    display: block;
    font-size: 32px;
    font-weight: 900;
    opacity: 0.3;
    margin-bottom: 12px;
}

.flow-item p {
    font-size: 14px;
}

/* cta */
.sub-cta {
    text-align: center;
    padding-bottom: 140px;
}

.sub-cta h2 {
    margin-bottom: 32px;
}

.sub-cta .btn {
    margin: 0 auto;
}

/*
footer {
    text-align: center;
    padding: 32px;
    font-size: 13px;
    opacity: 0.5;
}
*/

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 200;
    position: relative;
}

.menu-toggle:focus {
    outline: none;
}

.menu-toggle span {
    display: block;
    width: 26px;
    height: 2px;
    background: #f5f5f5;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-toggle.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

@media (max-width: 600px) {
    .menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        inset: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 36px;
        background: rgba(10, 10, 10, 0.98);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.35s ease;
        z-index: 150;
    }

    .nav-links.open {
        opacity: 1;
        visibility: visible;
    }

    .nav-links li {
        list-style: none;
    }

    .nav-links a {
        font-size: 22px;
        font-weight: 500;
        letter-spacing: 0.02em;
        color: #f5f5f5;
        text-decoration: none;
        position: relative;
        padding-bottom: 6px;
    }

    .nav-links a::after {
        content: "";
        position: absolute;
        left: 50%;
        bottom: 0;
        width: 0;
        height: 1px;
        background: #e67e22;
        transition: width 0.3s ease, left 0.3s ease;
    }

    .nav-links a:active::after {
        width: 100%;
        left: 0;
    }
}

footer {
    background: #0a0a0a;
    color: #f5f5f5;
    opacity: 0.5;
}

@media (max-width: 600px) {
    header {
        padding: 24px 16px;
    }

    .hero-content h1 {
        font-size: 40px;
        line-height: 1.3;
    }

    .hero-eyebrow {
        font-size: 11px;
    }

    .hero-sub {
        font-size: 14px;
    }

    main {
        padding: 24px 16px;
    }

    header h1 {
        font-size: 20px;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .flow-list {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    section h2 {
        font-size: 28px;
    }
}