/* 基本スタイル */
:root {
    --primary: #000000;
    --secondary: #D4AF37;
    --accent: #8A6D3B;
    --dark: #333333;
    --light: #FFFFFF;
    --gold: #D4AF37;
    --gold-light: rgba(212, 175, 55, 0.2);
    --gray: #666666;
    --light-gray: #f8f8f8;
    --off-white: #FAFAFA;
}

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

body {
    font-family: 'M PLUS Rounded 1c', 'Hiragino Kaku Gothic Pro', sans-serif;
    background-color: var(--light);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 100px 0;
    position: relative;
}

h2 {
    font-size: 3rem;
    margin-bottom: 40px;
    text-align: center;
    position: relative;
    display: inline-block;
    letter-spacing: 0.1em;
    font-weight: 800;
    background: linear-gradient(to right, var(--dark), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.8;
}

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

/* 和柄パターン */
.pattern {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    opacity: 0.05;
}

.pattern-seigaiha {
    background-color: var(--light);
    background-image: radial-gradient(circle at 100% 150%, var(--light) 24%, var(--gold) 24%, var(--gold) 28%, var(--light) 28%, var(--light) 36%, var(--gold) 36%, var(--gold) 40%, transparent 40%, transparent),
    radial-gradient(circle at 0 150%, var(--light) 24%, var(--gold) 24%, var(--gold) 28%, var(--light) 28%, var(--light) 36%, var(--gold) 36%, var(--gold) 40%, transparent 40%, transparent),
    radial-gradient(circle at 50% 100%, var(--gold) 10%, var(--light) 10%, var(--light) 23%, var(--gold) 23%, var(--gold) 30%, var(--light) 30%, var(--light) 43%, var(--gold) 43%, var(--gold) 50%, var(--light) 50%, var(--light) 63%, var(--gold) 63%, var(--gold) 71%, transparent 71%, transparent),
    radial-gradient(circle at 100% 50%, var(--gold) 5%, var(--light) 5%, var(--light) 15%, var(--gold) 15%, var(--gold) 20%, var(--light) 20%, var(--light) 29%, var(--gold) 29%, var(--gold) 34%, var(--light) 34%, var(--light) 44%, var(--gold) 44%, var(--gold) 49%, transparent 49%, transparent),
    radial-gradient(circle at 0 50%, var(--gold) 5%, var(--light) 5%, var(--light) 15%, var(--gold) 15%, var(--gold) 20%, var(--light) 20%, var(--light) 29%, var(--gold) 29%, var(--gold) 34%, var(--light) 34%, var(--light) 44%, var(--gold) 44%, var(--gold) 49%, transparent 49%, transparent);
    background-size: 100px 50px;
}

.pattern-asanoha {
    background-color: var(--light);
    background-image: 
        linear-gradient(30deg, var(--gold) 12%, transparent 12.5%, transparent 87%, var(--gold) 87.5%, var(--gold)),
        linear-gradient(150deg, var(--gold) 12%, transparent 12.5%, transparent 87%, var(--gold) 87.5%, var(--gold)),
        linear-gradient(30deg, var(--gold) 12%, transparent 12.5%, transparent 87%, var(--gold) 87.5%, var(--gold)),
        linear-gradient(150deg, var(--gold) 12%, transparent 12.5%, transparent 87%, var(--gold) 87.5%, var(--gold)),
        linear-gradient(60deg, var(--gold) 25%, transparent 25.5%, transparent 75%, var(--gold) 75%, var(--gold)),
        linear-gradient(60deg, var(--gold) 25%, transparent 25.5%, transparent 75%, var(--gold) 75%, var(--gold));
    background-size: 80px 140px;
    background-position: 0 0, 0 0, 40px 70px, 40px 70px, 0 0, 40px 70px;
}

.link-text {
    text-decoration: none;
    color: #D4AF37;
}

.link-text:hover {
    opacity: 0.4;
}

/* ヘッダー */
header {
    background-color: rgba(255, 255, 255, 0.98);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    padding: 15px 0;
    border-bottom: 3px solid var(--gold);
}

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

.logo {
    display: flex;
    align-items: center;
}

.logo-image {
    height: 50px;
    width: auto;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 10px;
    transition: all 0.3s ease;
}

nav ul li a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 15px;
    border-radius: 20px;
}

nav ul li a:hover {
    background: linear-gradient(to right, var(--gold), var(--gold-light));
    color: var(--dark);
    box-shadow: 0 4px 10px rgba(212, 175, 55, 0.3);
}

.hamburger {
    display: none;
    cursor: pointer;
    width: 30px;
    height: 25px;
    position: relative;
}

.hamburger span {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background: var(--dark);
    border-radius: 3px;
    opacity: 1;
    left: 0;
    transform: rotate(0deg);
    transition: .25s ease-in-out;
}

.hamburger span:nth-child(1) {
    top: 0px;
}

.hamburger span:nth-child(2),
.hamburger span:nth-child(3) {
    top: 10px;
}

.hamburger span:nth-child(4) {
    top: 20px;
}

.hamburger.open span:nth-child(1) {
    top: 10px;
    width: 0%;
    left: 50%;
}

.hamburger.open span:nth-child(2) {
    transform: rotate(45deg);
}

.hamburger.open span:nth-child(3) {
    transform: rotate(-45deg);
}

.hamburger.open span:nth-child(4) {
    top: 10px;
    width: 0%;
    left: 50%;
}

/* メインビジュアル */
.hero {
    height: 100vh;
    min-height: 600px;
    width: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 80px;
    padding-bottom: 100px;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.6), rgba(212, 175, 55, 0.4));
    z-index: 2;
}

.hero-content {
    color: var(--light);
    max-width: 800px;
    z-index: 4;
    padding: 40px;
    position: relative;
    text-align: center;
}

.hero-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* background: rgba(0, 0, 0, 0.3); */
    z-index: -1;
    border-radius: 20px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 2px solid rgba(212, 175, 55, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.wave-container {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    z-index: 3;
    pointer-events: none;
}

.wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 150px;
}

.wave .shape-fill {
    fill: var(--light);
}

.catchphrase {
    font-size: 4.5rem;
    margin-bottom: 20px;
    font-weight: 900;
    letter-spacing: 3px;
    text-shadow: 0 5px 100px rgba(0, 0, 0, 0.3);
    line-height: 1.2;
    background: linear-gradient(to right, var(--dark), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.sub-catchphrase {
    font-size: 1.5rem;
    margin-bottom: 20px;
    font-weight: 900;
    letter-spacing: 3px;
    text-shadow: 0 5px 100px rgba(0, 0, 0, 0.3);
    line-height: 1.2;
    background: linear-gradient(to right, var(--dark), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.lead {
    font-size: 1.5rem;
    margin-bottom: 40px;
    line-height: 1.8;
    color: var(--dark);
    text-shadow: 1px 1px 3px rgba(255, 255, 255, 0.5);
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(45deg, var(--gold), var(--gold-light));
    color: var(--dark);
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: bold;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(212, 175, 55, 0.5);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: all 0.5s ease;
    z-index: -1;
}

.btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

.btn:hover::before {
    left: 100%;
}

/* リード文セクション */
.intro {
    position: relative;
    padding: 100px 0;
    overflow: hidden;
    background-color: var(--off-white);
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    padding: 60px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.08);
    z-index: 2;
}

.intro::before,
.intro::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    z-index: 1;
}

.intro::before {
    background: linear-gradient(45deg, var(--gold-light), var(--gold-light));
    top: -100px;
    left: -100px;
    opacity: 0.5;
}

.intro::after {
    background: linear-gradient(45deg, var(--gold-light), var(--gold-light));
    bottom: -100px;
    right: -100px;
    opacity: 0.5;
}

.sun-symbol {
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, var(--gold), var(--secondary));
    border-radius: 50%;
    box-shadow: 0 0 30px rgba(212, 175, 55, 0.5);
    z-index: 3;
}

.sun-rays {
    position: absolute;
    width: 120px;
    height: 120px;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.sun-ray {
    position: absolute;
    width: 4px;
    height: 30px;
    background: var(--gold);
    left: 58px;
    top: 45px;
    border-radius: 2px;
}

.sun-ray:nth-child(1) {
    transform: rotate(0deg) translateY(-45px);
}

.sun-ray:nth-child(2) {
    transform: rotate(45deg) translateY(-45px);
}

.sun-ray:nth-child(3) {
    transform: rotate(90deg) translateY(-45px);
}

.sun-ray:nth-child(4) {
    transform: rotate(135deg) translateY(-45px);
}

.sun-ray:nth-child(5) {
    transform: rotate(180deg) translateY(-45px);
}

.sun-ray:nth-child(6) {
    transform: rotate(225deg) translateY(-45px);
}

.sun-ray:nth-child(7) {
    transform: rotate(270deg) translateY(-45px);
}

.sun-ray:nth-child(8) {
    transform: rotate(315deg) translateY(-45px);
}

/* サービス説明セクション */
.services {
    background-color: white;
    position: relative;
    overflow: hidden;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    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='%23D4AF37' fill-opacity='0.05'%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");
    opacity: 0.5;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    grid-gap: 30px;
    margin-top: 50px;
}

.service-item {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.service-item:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(to right, var(--gold), var(--gold-light));
}

.service-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1), rgba(212, 175, 55, 0.05));
    border-radius: 20px;
    transition: all 0.3s ease;
}

.service-item:hover .service-icon {
    transform: scale(1.1) rotate(10deg);
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.2), rgba(212, 175, 55, 0.1));
}

.service-icon svg {
    width: 45px;
    height: 45px;
    fill: url(#service-icon-gradient);
}

.service-title {
    font-size: 1.8rem;
    margin-bottom: 15px;
    font-weight: 800;
    color: var(--dark);
    position: relative;
    display: inline-block;
}

.service-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: linear-gradient(to right, var(--gold), var(--gold-light));
    border-radius: 3px;
}

/* 料金セクション */
.pricing {
    background: linear-gradient(135deg, var(--off-white), white);
    position: relative;
    overflow: hidden;
}

.pricing::before,
.pricing::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    z-index: 0;
}

.pricing::before {
    background: linear-gradient(45deg, rgba(212, 175, 55, 0.05), rgba(212, 175, 55, 0.03));
    top: -200px;
    right: -200px;
}

.pricing::after {
    background: linear-gradient(45deg, rgba(212, 175, 55, 0.05), rgba(212, 175, 55, 0.03));
    bottom: -200px;
    left: -200px;
}

.price-card {
    max-width: 500px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
    position: relative;
    z-index: 1;
    transform: perspective(1000px) rotateY(5deg);
    transition: all 0.5s ease;
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.price-card:hover {
    transform: perspective(1000px) rotateY(0);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.1);
}

.price-header {
    background: linear-gradient(45deg, var(--gold), var(--gold-light));
    color: var(--dark);
    padding: 40px 30px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.price-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(rgba(255, 255, 255, 0.3), transparent);
    transform: rotate(30deg);
}

.price-title {
    font-size: 2.2rem;
    margin-bottom: 15px;
    font-weight: 900;
    letter-spacing: 2px;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.price-amount {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.price-period {
    font-size: 1.2rem;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

.price-body {
    padding: 40px 30px;
}

.price-features {
    list-style: none;
    margin-bottom: 30px;
}

.price-features li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    padding-left: 35px;
    font-size: 1.1rem;
}

.price-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--gold);
    font-weight: bold;
    font-size: 1.3rem;
}

.price-btn {
    display: block;
    width: 100%;
    text-align: center;
    padding: 18px;
    background: linear-gradient(45deg, var(--gold), var(--gold-light));
    color: var(--dark);
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    margin-top: 30px;
    box-shadow: 0 10px 20px rgba(212, 175, 55, 0.2);
    border: 1px solid rgba(212, 175, 55, 0.3);
}

.price-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(212, 175, 55, 0.3);
}

/* サービスの流れセクション */
.flow {
    background-color: var(--off-white);
    position: relative;
    overflow: hidden;
}

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

.flow-steps {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin: 60px 0 40px;
    position: relative;
}

.flow-steps::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50px;
    width: 4px;
    background: linear-gradient(to bottom, var(--gold), var(--gold-light));
    z-index: 1;
}

.flow-step {
    display: flex;
    position: relative;
    z-index: 2;
}

.flow-step-number {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(45deg, var(--gold), var(--gold-light));
    color: var(--dark);
    font-size: 2.5rem;
    font-weight: 900;
    border-radius: 50%;
    margin-right: 30px;
    box-shadow: 0 10px 20px rgba(212, 175, 55, 0.3);
    flex-shrink: 0;
    position: relative;
}

.flow-step-number::before {
    content: '';
    position: absolute;
    width: 110px;
    height: 110px;
    border: 2px dashed var(--gold);
    border-radius: 50%;
    animation: spin 30s linear infinite;
}

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

.flow-step-content {
    background: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    flex-grow: 1;
    border-left: 4px solid var(--gold);
}

.flow-step-title {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 15px;
    color: var(--dark);
}

.flow-step-desc {
    font-size: 1.1rem;
    color: var(--dark);
}

/* 実績セクション */
.portfolio {
    background: white;
    position: relative;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    grid-gap: 40px;
    margin-top: 50px;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    transform: translateY(0) scale(1);
}

.portfolio-item:hover {
    transform: translateY(-15px) scale(1.03);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);
}

.portfolio-image {
    width: 100%;
    height: 300px;
    background: #f0f0f0;
    position: relative;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.5s ease;
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.8), rgba(212, 175, 55, 0.6));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    opacity: 0;
    transition: all 0.3s ease;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-title {
    color: white;
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 15px;
    transform: translateY(30px);
    transition: all 0.4s ease;
    opacity: 0;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.portfolio-category {
    color: white;
    font-size: 1.2rem;
    transform: translateY(30px);
    transition: all 0.4s ease;
    opacity: 0;
    transition-delay: 0.1s;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    padding: 5px 15px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
}

.portfolio-item:hover .portfolio-title,
.portfolio-item:hover .portfolio-category {
    transform: translateY(0);
    opacity: 1;
}

.portfolio-info {
    padding: 25px;
    background: white;
}

.portfolio-client {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 10px;
    color: var(--dark);
    background: linear-gradient(to right, var(--dark), var(--gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.portfolio-desc {
    font-size: 1rem;
    color: var(--dark);
}

/* お問い合わせセクション */
.contact {
    background: var(--off-white);
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 15px;
    background: linear-gradient(to right, var(--gold-light), var(--gold), var(--gold-light), var(--gold), var(--gold-light));
    background-size: 500% 100%;
    animation: gradient-move 20s linear infinite;
}

@keyframes gradient-move {
    0% {
        background-position: 0% 0%;
    }
    100% {
        background-position: 500% 0%;
    }
}

.contact-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
    background: white;
    padding: 60px;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
}

.contact-text {
    margin-bottom: 40px;
    font-size: 1.3rem;
    position: relative;
}

.line-btn {
    display: inline-flex;
    align-items: center;
    padding: 18px 50px;
    background: #06C755;
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.4rem;
    font-weight: 900;
    transition: all 0.3s ease;
    box-shadow: 0 10px 25px rgba(6, 199, 85, 0.3);
    position: relative;
    overflow: hidden;
}

.line-btn svg {
    margin-right: 15px;
    width: 30px;
    height: 30px;
}

.line-btn::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: all 0.5s ease;
}

.line-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(6, 199, 85, 0.4);
}

.line-btn:hover::before {
    left: 100%;
}

/* フッター */
footer {
    background: var(--dark);
    color: white;
    padding: 80px 0 30px;
    position: relative;
}

.footer-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.footer-pattern svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 80px;
}

.footer-pattern .shape-fill {
    fill: var(--light);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    grid-gap: 50px;
    margin-bottom: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}

.footer-logo-image {
    height: 40px;
    width: auto;
    margin-right: 15px;
}

.footer-desc {
    margin-bottom: 25px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.05rem;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: linear-gradient(45deg, var(--gold), var(--gold-light));
    transform: translateY(-5px) rotate(10deg);
    box-shadow: 0 10px 20px rgba(212, 175, 55, 0.3);
}

.footer-social svg {
    fill: white;
    width: 20px;
    height: 20px;
}

.footer-title {
    font-size: 1.4rem;
    margin-bottom: 25px;
    font-weight: 800;
    position: relative;
    padding-bottom: 15px;
    color: white;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(to right, var(--gold), var(--gold-light));
    border-radius: 2px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 15px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding-left: 20px;
    font-size: 1.05rem;
}

.footer-links a::before {
    content: '❯';
    position: absolute;
    left: 0;
    color: var(--gold);
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: white;
    padding-left: 25px;
}

.footer-links a:hover::before {
    left: 5px;
    color: var(--gold);
}

.footer-contact-item {
    display: flex;
    margin-bottom: 20px;
    align-items: flex-start;
}

.footer-contact-icon {
    margin-right: 15px;
    color: var(--gold);
    font-size: 1.2rem;
}

.footer-contact-text {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.05rem;
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 1rem;
}

/* レスポンシブデザイン */
@media (max-width: 992px) {
    .catchphrase {
        font-size: 3.5rem;
    }
    
    .lead {
        font-size: 1.3rem;
    }
}

@media (max-width: 768px) {
    .catchphrase {
        font-size: 2.8rem;
    }
    
    .lead {
        font-size: 1.2rem;
    }
    
    .service-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .intro-content,
    .contact-content {
        padding: 40px 25px;
    }
    
    h2 {
        font-size: 2.5rem;
    }
    
    .hamburger {
        display: block;
        z-index: 1002;
    }
    
    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: white;
        padding: 80px 20px 20px;
        transition: all 0.5s ease;
        box-shadow: 0 0 30px rgba(0, 0, 0, 0.1);
        z-index: 1001;
        display: flex;
        justify-content: flex-start;
        align-items: flex-start;
    }
    
    nav.open {
        right: 0;
    }
    
    nav ul {
        flex-direction: column;
        width: 100%;
    }
    
    nav ul li {
        margin-bottom: 20px;
        width: 100%;
    }
    
    nav ul li a {
        display: block;
        padding: 15px;
        text-align: center;
        width: 100%;
    }
    
    .flow-step {
        flex-direction: column;
    }
    
    .flow-step-number {
        margin-right: 0;
        margin-bottom: 20px;
        align-self: center;
    }
    
    .flow-steps::before {
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 480px) {
    .hero {
        min-height: 650px;
        padding-top: 100px;
    }
    
    .catchphrase {
        font-size: 2.3rem;
        margin-top: 20px;
    }
    
    .lead {
        font-size: 1.1rem;
    }
    
    .hero-content {
        padding: 25px;
    }
    
    .btn {
        padding: 12px 30px;
        font-size: 1rem;
    }
    
    .wave-container {
        bottom: -1px;
    }
    
    .wave svg {
        height: 100px;
    }
}