@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700;900&display=swap');

/* ===========================
   CSS Variables - Orange Theme
=========================== */
:root {
    /* Primary Colors - Warm Orange */
    --primary: #FF8A1F;
    --primary-dark: #E67300;
    --primary-light: #FFF5EB;
    --primary-gradient: linear-gradient(135deg, #FF9F43 0%, #FF6B00 100%);

    /* Accent Colors - Trustworthy Blue */
    --accent: #2196F3;
    --accent-light: #E3F2FD;

    /* Success / Check */
    --success: #4CAF50;

    /* Background & Surface */
    --bg: #FFF9F5;
    --surface: #FFFFFF;

    /* Text Colors */
    --text-main: #333333;
    --text-secondary: #665A52;
    --text-muted: #999999;

    /* Borders */
    --border: #E0D5CC;
    --border-light: #F0E8E0;

    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(255, 255, 255, 0.8);
    --glass-shadow: 0 12px 40px rgba(255, 138, 31, 0.15);

    /* Layout */
    --w-max: 1200px;
    --header-height: 70px;

    /* Border Radius */
    --radius-xl: 32px;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 8px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 16px 60px rgba(0, 0, 0, 0.12);

    /* Ease */
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

    /* Font */
    --font-main: 'Noto Sans JP', sans-serif;
}

/* ===========================
   Base Reset
=========================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg);
    color: var(--text-main);
    font-family: var(--font-main);
    line-height: 1.8;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s var(--ease-out);
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: var(--w-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===========================
   Utility Classes
=========================== */
.highlight {
    color: var(--primary);
    background: linear-gradient(transparent 65%, rgba(255, 138, 31, 0.25) 65%);
    padding: 0 4px;
}

.highlight-white {
    color: white;
    text-decoration: underline;
    text-decoration-color: rgba(255, 255, 255, 0.5);
    text-underline-offset: 6px;
}

.highlight-gradient {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===========================
   Buttons
=========================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 100px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: all 0.3s var(--ease-out);
    font-family: var(--font-main);
}

.btn .icon {
    width: 20px;
    height: 20px;
}

.btn small {
    font-size: 0.85em;
    font-weight: 500;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 20px rgba(255, 107, 0, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 30px rgba(255, 107, 0, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary-light);
}

.btn-white {
    background: white;
    color: var(--primary);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.btn-white:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.btn-lg {
    padding: 18px 40px;
    font-size: 1.1rem;
}

/* ===========================
   Header
=========================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
}

.header-container {
    max-width: var(--w-max);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.4rem;
    font-weight: 900;
}

.logo-character {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-light);
}

.logo-accent {
    color: var(--primary);
}

.nav ul {
    display: flex;
    gap: 28px;
}

.nav a {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary);
    position: relative;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.3s;
}

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

.nav a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 10px 24px;
    font-size: 0.9rem;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-main);
    transition: 0.3s;
}

/* ===========================
   Hero Section
=========================== */
.hero {
    position: relative;
    padding-top: calc(var(--header-height) + 60px);
    padding-bottom: 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.35;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 50%, rgba(0, 0, 0, 0) 100%);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 50%, rgba(0, 0, 0, 0) 100%);
}

.hero-character {
    position: absolute;
    top: calc(var(--header-height) + 40px);
    right: 10%;
    width: 180px;
    height: 180px;
    animation: float 6s ease-in-out infinite;
    z-index: 5;
}

.hero-character img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: var(--shadow-lg);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(-5deg);
    }
    50% {
        transform: translateY(-15px) rotate(5deg);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
}

/* Hero Text Box with Semi-transparent White Background */
.hero-text-box {
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-radius: var(--radius-xl);
    padding: 48px;
    max-width: 700px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.6);
}

.hero-tag {
    display: inline-block;
    margin-bottom: 16px;
}

.hero-tag span {
    background: var(--primary);
    color: white;
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 700;
}

.hero-title {
    font-size: clamp(1.6rem, 4vw, 2.5rem);
    font-weight: 900;
    line-height: 1.4;
    color: var(--text-main);
    margin-bottom: 16px;
}

.hero-sub {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.9;
}

.hero-desc strong {
    color: var(--text-main);
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-price-badge {
    position: absolute;
    bottom: 40px;
    right: 0;
    background: white;
    padding: 24px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    text-align: center;
    border: 3px solid var(--primary);
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
}

.price-content {
    display: flex;
    align-items: baseline;
    gap: 4px;
    justify-content: center;
}

.price-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.price-value {
    font-size: 3rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
}

.price-value small {
    font-size: 1.2rem;
}

.price-sub {
    margin-top: 6px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-main);
}

.price-note {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 8px;
}

/* ===========================
   Trust Section
=========================== */
.trust-section {
    background: var(--primary);
    padding: 30px 0;
}

.trust-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}

.trust-item {
    text-align: center;
    color: white;
}

.trust-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 900;
    line-height: 1;
    margin-bottom: 4px;
}

.trust-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.trust-divider {
    width: 1px;
    height: 50px;
    background: rgba(255, 255, 255, 0.3);
}

/* ===========================
   Section Common
=========================== */
.section {
    padding: 70px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    padding: 6px 20px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    font-weight: 900;
    color: var(--text-main);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===========================
   Problem Section
=========================== */
.problem-section {
    background: var(--bg);
}

.problem-grid {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.problem-img-wrapper {
    position: absolute;
    right: -120px;
    bottom: -40px;
    width: 180px;
    z-index: 10;
}

.problem-img-wrapper img {
    width: 100%;
    height: auto;
    object-fit: contain;
}

.problem-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.problem-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    transition: all 0.3s var(--ease-out);
}

.problem-item:hover {
    transform: translateX(8px);
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.problem-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--primary-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.problem-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--primary);
}

.problem-text h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 4px;
}

.problem-text p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* ===========================
   Solution Arrow
=========================== */
.solution-arrow {
    padding: 40px 0;
    text-align: center;
    background: linear-gradient(180deg, var(--bg), var(--surface));
}

.arrow-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.arrow-character {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary);
    box-shadow: var(--shadow-md);
}

.arrow-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
}

.arrow-icon {
    width: 40px;
    height: 40px;
    stroke: var(--primary);
    animation: bounce 1s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(10px);
    }
}

/* ===========================
   About Section
=========================== */
.about-section {
    background: var(--surface);
}

.steps-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.step-card {
    flex: 1;
    min-width: 260px;
    max-width: 320px;
    padding: 40px 28px;
    background: var(--bg);
    border-radius: var(--radius-xl);
    text-align: center;
    position: relative;
    transition: all 0.4s var(--ease-out);
    border: 2px solid transparent;
}

.step-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.step-number {
    position: absolute;
    top: 16px;
    left: 24px;
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--primary);
    background: var(--primary-light);
    padding: 4px 12px;
    border-radius: 100px;
}

.step-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-light), var(--surface));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--primary);
}

.step-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 12px;
}

.step-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.step-card-character {
    padding-top: 20px;
}

.step-character {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 16px;
    border: 3px solid var(--primary);
}

.step-arrow {
    flex-shrink: 0;
}

.step-arrow svg {
    width: 32px;
    height: 32px;
    stroke: var(--border);
}

/* ===========================
   Speed Section
=========================== */
.speed-section {
    background: var(--primary-gradient);
    border-radius: var(--radius-xl);
    padding: 60px 40px;
    color: white;
    text-align: center;
}

.speed-header {
    margin-bottom: 40px;
}

.speed-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    padding: 6px 16px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 100px;
    margin-bottom: 16px;
}

.speed-header h3 {
    font-size: 2rem;
    font-weight: 900;
}

.speed-highlight {
    color: #FFE066;
    text-shadow: 0 0 30px rgba(255, 224, 102, 0.5);
}

.speed-header p {
    opacity: 0.9;
    margin-top: 8px;
}

.speed-grid {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.speed-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 24px 36px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    transition: all 0.3s var(--ease-out);
}

.speed-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.speed-card-icon {
    margin-bottom: 4px;
}

.speed-card-icon svg {
    width: 32px;
    height: 32px;
    stroke: white;
}

.speed-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.speed-time {
    font-size: 1rem;
    color: #FFE066;
}

.speed-time strong {
    font-size: 1.5rem;
    font-weight: 800;
}

/* ===========================
   Features Section
=========================== */
.features-section {
    background: var(--bg);
}

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

.feature-card {
    padding: 32px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    position: relative;
    transition: all 0.4s var(--ease-out);
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-main {
    grid-column: span 4;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 32px;
    padding: 48px;
    background: linear-gradient(135deg, var(--primary-light), var(--surface));
    border: 2px solid var(--primary);
}

.feature-main .feature-icon {
    flex-shrink: 0;
}

.feature-main .feature-icon svg {
    width: 64px;
    height: 64px;
}

.feature-main h3 {
    font-size: 1.5rem;
}

.feature-main p {
    max-width: 500px;
}

.feature-number {
    position: absolute;
    top: 16px;
    right: 20px;
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--primary);
}

.feature-icon {
    margin-bottom: 16px;
}

.feature-icon svg {
    width: 40px;
    height: 40px;
    stroke: var(--primary);
}

.feature-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.feature-content {
    flex: 1;
}

/* ===========================
   Service Section
=========================== */
.service-section {
    background: var(--surface);
}

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

/* Tablet: 2 columns */
@media (max-width: 1024px) {
    .service-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile: 1 column */
@media (max-width: 600px) {
    .service-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

.service-card {
    padding: 36px;
    background: var(--bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all 0.3s var(--ease-out);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.service-icon {
    margin-bottom: 16px;
}

.service-icon svg {
    width: 40px;
    height: 40px;
    stroke: var(--primary);
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--primary-light);
}

.service-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.service-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

.service-note {
    margin-top: 40px;
    padding: 24px;
    background: var(--primary-light);
    border-radius: var(--radius-lg);
    text-align: center;
}

.service-note p {
    font-size: 1rem;
    color: var(--text-main);
}

/* ===========================
   Output Examples Section
=========================== */
.output-examples-section {
    background: var(--surface);
}

.output-examples-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 1000px;
    margin: 0 auto;
}

.output-example-item {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s var(--ease-out);
}

.output-example-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.output-example-item img {
    width: 100%;
    height: auto;
    display: block;
}

@media (max-width: 768px) {
    .output-examples-grid {
        grid-template-columns: 1fr;
        gap: 24px;
        max-width: 500px;
    }
}

/* ===========================
   Price Section
=========================== */
.price-section {
    background: var(--bg);
}

.price-main-card {
    max-width: 500px;
    margin: 0 auto 50px;
    background: var(--surface);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 2px solid var(--primary);
    position: relative;
}

.price-character {
    position: absolute;
    top: -30px;
    right: -30px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid white;
    box-shadow: var(--shadow-md);
    z-index: 10;
}

.price-card-header {
    padding: 48px;
    background: var(--primary-gradient);
    color: white;
    text-align: center;
}

.price-card-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
    opacity: 0.9;
}

.price-card-amount {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
}

.price-yen {
    font-size: 1rem;
}

.price-number {
    font-size: 4.5rem;
    font-weight: 900;
    line-height: 1;
}

.price-unit {
    font-size: 1.5rem;
    font-weight: 600;
}

.price-card-features {
    padding: 40px 48px;
}

.price-feature {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-light);
}

.price-feature:last-child {
    border-bottom: none;
}

.check-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    stroke: var(--success);
}

/* ===========================
   Comparison Table
=========================== */
.comparison-wrapper {
    margin-bottom: 50px;
}

.comparison-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 32px;
    color: var(--text-main);
}

.comparison-table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.comparison-table {
    width: 100%;
    min-width: 700px;
    border-collapse: collapse;
    background: var(--surface);
}

.comparison-table th,
.comparison-table td {
    padding: 20px 16px;
    text-align: center;
    border-bottom: 1px solid var(--border-light);
}

.comparison-table th {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg);
}

.comparison-table td {
    font-size: 0.95rem;
    color: var(--text-main);
}

.row-label {
    font-weight: 600;
    text-align: left !important;
    background: var(--bg);
}

.th-highlight {
    background: var(--primary) !important;
    color: white !important;
    font-weight: 700;
}

.td-highlight {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
}

/* ===========================
   Merit Box
=========================== */
.merit-section {
    background: var(--surface);
}

.merit-box {
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: 60px;
    border: 1px solid var(--border-light);
}

.merit-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 32px;
}

.merit-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

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

.merit-icon {
    margin-bottom: 16px;
}

.merit-icon svg {
    width: 48px;
    height: 48px;
    stroke: var(--primary);
    margin: 0 auto;
}

.merit-item h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 16px;
}

.merit-item ul {
    text-align: left;
}

.merit-item li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.merit-item li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

/* ===========================
   Security Section
=========================== */
.security-section {
    background: var(--surface);
}

/* ===========================
   Use Case Section
=========================== */
.usecase-section {
    background: var(--bg);
}

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

.usecase-before,
.usecase-after {
    flex: 1;
    min-width: 280px;
    max-width: 400px;
}

.usecase-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.usecase-box {
    padding: 40px;
    background: var(--surface);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 2px dashed var(--border);
}

.usecase-box-result {
    border: 2px solid var(--primary);
    background: linear-gradient(135deg, var(--primary-light), var(--surface));
}

.usecase-icon {
    margin-bottom: 16px;
}

.usecase-icon svg {
    width: 48px;
    height: 48px;
    stroke: var(--primary);
    margin: 0 auto;
}

.usecase-box p {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 12px;
}

.usecase-note {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.usecase-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.usecase-character {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary);
}

.usecase-arrow svg {
    width: 40px;
    height: 40px;
    stroke: var(--primary);
}

/* ===========================
   Case Examples (導入イメージ)
=========================== */
.case-examples {
    margin-top: 60px;
}

.case-examples-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 16px;
}

.case-examples-desc {
    text-align: center;
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.case-examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.case-example-item {
    padding: 24px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: all 0.3s var(--ease-out);
}

.case-example-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.case-example-label {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary);
    background: var(--primary-light);
    padding: 4px 12px;
    border-radius: 100px;
    margin-bottom: 12px;
}

.case-example-item p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.case-example-item strong {
    color: var(--text-main);
}

/* ===========================
   Reasons Section (選ばれる理由)
=========================== */
.reasons-section {
    margin-top: 60px;
    padding: 48px;
    background: linear-gradient(135deg, var(--primary-light), var(--surface));
    border-radius: var(--radius-xl);
    border: 2px solid var(--primary);
}

.reasons-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 16px;
}

.reasons-desc {
    text-align: center;
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.reason-item {
    display: flex;
    gap: 16px;
    padding: 24px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
}

.reason-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 800;
}

.reason-content h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 8px;
}

.reason-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.reason-content strong {
    color: var(--text-main);
}

/* Tablet */
@media (max-width: 1024px) {
    .reasons-grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .case-examples {
        margin-top: 40px;
    }

    .case-examples-grid {
        max-width: 400px;
        margin: 0 auto;
    }

    .reasons-section {
        margin-top: 40px;
        padding: 32px 20px;
    }

    .reasons-grid {
        max-width: 400px;
        margin: 0 auto;
    }

    .reason-item {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
}

/* ===========================
   Flow Section
=========================== */
.flow-section {
    background: var(--surface);
}

.flow-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.flow-timeline::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), var(--primary-light));
}

.flow-item {
    display: flex;
    gap: 32px;
    margin-bottom: 40px;
    position: relative;
}

.flow-item:last-child {
    margin-bottom: 0;
}

.flow-number {
    width: 80px;
    height: 80px;
    background: var(--primary-gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 800;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.flow-content {
    padding: 24px 32px;
    background: var(--bg);
    border-radius: var(--radius-lg);
    flex: 1;
}

.flow-content h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 8px;
}

.flow-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* ===========================
   FAQ Section - Accordion
=========================== */
.faq-section {
    background: var(--bg);
}

.faq-accordion {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-accordion-item {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
    transition: all 0.3s var(--ease-out);
}

.faq-accordion-item:hover {
    border-color: var(--primary);
}

.faq-accordion-item.active {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.faq-accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
}

.faq-question {
    flex: 1;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
}

.faq-accordion-icon {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
    transition: transform 0.3s var(--ease-out);
    flex-shrink: 0;
}

.faq-accordion-item.active .faq-accordion-icon {
    transform: rotate(180deg);
}

.faq-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s var(--ease-out);
}

.faq-accordion-item.active .faq-accordion-content {
    max-height: 300px;
}

.faq-accordion-answer {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 0 24px 20px;
    border-top: 1px solid var(--border-light);
    padding-top: 16px;
    margin-top: 0;
}

.faq-accordion-answer p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.faq-icon {
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    flex-shrink: 0;
}

.faq-icon-a {
    background: var(--accent);
}

/* ===========================
   CTA Section
=========================== */
.cta-section {
    padding: 60px 0;
    background: var(--primary-gradient);
    color: white;
    text-align: center;
}

.cta-content {
    position: relative;
}

.cta-character {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid white;
    margin: 0 auto 24px;
    box-shadow: var(--shadow-lg);
}

.cta-content h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
    font-weight: 800;
    margin-bottom: 20px;
    color: white;
}

.cta-content p {
    font-size: 1.05rem;
    opacity: 0.9;
    margin-bottom: 36px;
}

/* ===========================
   Download Section
=========================== */
.download-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 32px;
    background: linear-gradient(135deg, var(--primary-light), var(--surface));
    border-radius: var(--radius-xl);
    border: 2px solid var(--primary);
}

.download-content {
    display: flex;
    align-items: center;
    gap: 20px;
}

.download-icon svg {
    width: 48px;
    height: 48px;
    stroke: var(--primary);
}

.download-text h4 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 4px;
}

.download-text p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.download-btn {
    flex-shrink: 0;
}

/* ===========================
   Footer
=========================== */
.site-footer {
    background: var(--surface);
    padding: 60px 0 40px;
    border-top: 1px solid var(--border-light);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-character {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-light);
}

.footer-company {
    text-align: right;
}

.footer-company p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===========================
   Reveal Animation
=========================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--ease-out);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================
   Responsive - Tablet
=========================== */
@media (max-width: 1024px) {
    .hero-character {
        width: 140px;
        height: 140px;
        right: 5%;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .feature-main {
        grid-column: span 2;
        flex-direction: column;
        text-align: center;
    }
}

/* ===========================
   Responsive - Mobile
=========================== */
@media (max-width: 768px) {
    :root {
        --header-height: 64px;
    }

    .section {
        padding: 50px 0;
    }

    .section-header {
        margin-bottom: 32px;
    }

    /* Center alignment for mobile */
    .container {
        text-align: center;
    }

    /* Lists keep left-aligned text but center the container */
    .problem-list,
    .service-list {
        text-align: left;
    }

    .merit-item ul {
        text-align: left;
        display: inline-block;
    }

    .merit-item {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .merit-grid {
        max-width: 400px;
        margin: 0 auto;
    }

    /* Service cards - icon/heading centered, list left-aligned but centered in card */
    .service-card {
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .service-card h3 {
        text-align: center;
    }

    .service-list {
        display: inline-block;
        text-align: left;
    }

    .service-grid {
        max-width: 400px;
        margin: 0 auto;
    }

    /* Feature cards center content */
    .feature-card {
        text-align: center;
    }

    .feature-card p {
        text-align: left;
    }

    .features-grid {
        max-width: 400px;
        margin: 0 auto;
    }

    /* Problem section center */
    .problem-grid {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .problem-list {
        width: 100%;
        max-width: 400px;
    }

    /* Header Mobile */
    .nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        padding: 40px 24px;
        transform: translateX(100%);
        transition: transform 0.4s var(--ease-out);
        z-index: 999;
    }

    .nav.active {
        transform: translateX(0);
    }

    .nav ul {
        flex-direction: column;
        align-items: center;
        gap: 24px;
    }

    .nav a {
        font-size: 1.1rem;
    }

    .nav-cta {
        display: none;
    }

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

    /* Hero Mobile */
    .hero {
        padding-top: calc(var(--header-height) + 20px);
        padding-bottom: 40px;
        min-height: auto;
    }

    .hero-character {
        display: none;
    }

    .hero-text-box {
        padding: 28px 20px;
        margin: 0 auto;
        text-align: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-title {
        font-size: 1.6rem;
    }

    .hero-desc {
        font-size: 0.95rem;
    }

    .hero-desc br {
        display: none;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-price-badge {
        position: relative;
        bottom: auto;
        right: auto;
        margin: 20px auto 0;
        padding: 16px 20px;
    }

    .price-value {
        font-size: 2.5rem;
    }

    /* Trust Mobile - 2 columns */
    .trust-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        justify-items: center;
    }

    .trust-divider {
        display: none;
    }

    .trust-number {
        font-size: 2rem;
    }

    .trust-item {
        width: 100%;
    }

    /* Problem Mobile */
    .problem-img-wrapper {
        position: relative;
        right: auto;
        bottom: auto;
        width: 120px;
        margin: 24px auto 0;
    }

    .problem-item {
        text-align: left;
    }

    /* Steps Mobile */
    .steps-wrapper {
        flex-direction: column;
    }

    .step-arrow {
        transform: rotate(90deg);
    }

    .step-card {
        max-width: 100%;
    }

    /* Features Mobile - 1 column for readability */
    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-main {
        grid-column: span 1;
    }

    .feature-card {
        padding: 24px 16px;
    }

    .feature-card h3 {
        font-size: 1rem;
    }

    .feature-card p {
        font-size: 0.85rem;
    }

    /* Speed Mobile */
    .speed-section {
        padding: 40px 24px;
    }

    .speed-header h3 {
        font-size: 1.5rem;
    }

    .speed-grid {
        gap: 10px;
    }

    .speed-card {
        flex: 1 1 100%;
        padding: 16px 20px;
        flex-direction: row;
        justify-content: flex-start;
        align-items: center;
        gap: 14px;
    }

    .speed-card-icon {
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .speed-card-icon svg {
        width: 36px;
        height: 36px;
    }

    .speed-label {
        font-size: 1.05rem;
        flex: 1;
    }

    .speed-time {
        font-size: 1rem;
        font-weight: 600;
        white-space: nowrap;
    }

    .speed-time strong {
        font-size: 1.3rem;
    }

    /* Price Mobile */
    .price-main-card {
        margin: 0 auto 40px;
    }

    .price-card-header {
        padding: 32px 24px;
    }

    .price-number {
        font-size: 3.5rem;
    }

    .price-card-features {
        padding: 32px 24px;
    }

    .price-character {
        width: 70px;
        height: 70px;
        top: -20px;
        right: -10px;
    }


    /* Use Case Mobile */
    .usecase-content {
        flex-direction: column;
    }

    .usecase-arrow {
        flex-direction: row;
    }

    .usecase-arrow svg {
        transform: rotate(90deg);
    }

    /* Flow Mobile */
    .flow-timeline {
        max-width: 400px;
        margin: 0 auto;
    }

    .flow-timeline::before {
        left: 24px;
    }

    .flow-number {
        width: 48px;
        height: 48px;
        font-size: 1rem;
    }

    .flow-content {
        padding: 20px 24px;
        text-align: left;
    }

    .flow-item {
        gap: 20px;
    }

    /* Merit Mobile */
    .merit-box {
        padding: 40px 24px;
    }

    /* CTA Mobile */
    .cta-section {
        padding: 50px 0;
    }

    .cta-character {
        width: 100px;
        height: 100px;
    }

    /* Footer Mobile */
    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-company {
        text-align: center;
    }
}

/* ===========================
   Responsive - Small Mobile
=========================== */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .section-title {
        font-size: 1.4rem;
    }

    .btn-lg {
        padding: 16px 28px;
        font-size: 1rem;
    }

    .step-card,
    .security-card {
        padding: 28px 20px;
    }

    /* Service cards - compact for 2 columns on small mobile */
    .service-card {
        padding: 20px 16px;
    }

    .service-card h3 {
        font-size: 1rem;
        margin-bottom: 12px;
        padding-bottom: 10px;
    }

    .service-list li {
        font-size: 0.8rem;
        margin-bottom: 8px;
        padding-left: 14px;
    }

    .service-list li::before {
        top: 8px;
        width: 4px;
        height: 4px;
    }

    .service-icon svg {
        width: 32px;
        height: 32px;
    }

    .faq-grid {
        max-width: 400px;
        margin: 0 auto;
    }

    .faq-item {
        padding: 24px 20px;
        text-align: left;
    }

    .faq-q {
        font-size: 1rem;
    }

    .hero-text-box {
        padding: 24px 20px;
    }

    /* Feature cards on small mobile */
    .feature-card {
        padding: 20px 14px;
    }

    .feature-number {
        font-size: 0.65rem;
        padding: 3px 8px;
        top: 10px;
        right: 10px;
    }

    .feature-icon {
        margin-bottom: 12px;
    }

    .feature-icon svg {
        width: 32px;
        height: 32px;
    }
}

/* ===========================
   Mobile Floating CTA Button
   =========================== */
.mobile-floating-cta {
    display: none;
}

@media (max-width: 768px) {
    .mobile-floating-cta {
        display: flex;
        align-items: center;
        gap: 8px;
        position: fixed;
        bottom: 24px;
        right: 16px;
        background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        color: white;
        padding: 14px 20px;
        border-radius: 50px;
        box-shadow: 0 4px 20px rgba(255, 138, 31, 0.4);
        text-decoration: none;
        font-size: 0.95rem;
        font-weight: 700;
        z-index: 998;
        transition: all 0.3s var(--ease-out);
    }

    .mobile-floating-cta:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 24px rgba(255, 138, 31, 0.5);
    }

    .mobile-floating-cta svg {
        width: 20px;
        height: 20px;
        stroke: white;
        flex-shrink: 0;
    }

    .mobile-floating-cta span {
        white-space: nowrap;
    }
}