* {
    margin: 0;
    padding: 0;
    font-family: 'Trebuchet MS', 'Hiragino Sans', sans-serif;
}

body {
    overflow-x: hidden;
    background: #fff;
}

ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

p {
    color: #444;
    font-size: 17px;
    line-height: 31px;
    margin-bottom: 24px;
    word-wrap: break-word;
}

.header {
    display: none;
}

.baner-content {
    width: 100%;
    padding: 80px 40px;
}

.split-images {
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto 50px;
}

.split-images .img-left,
.split-images .img-right {
    flex: 1;
    height: 280px;
    background: url(../img/banner_bg.jpg);
    background-size: cover;
    background-position: center;
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
    display: block;
}

.split-images .img-left {
    clip-path: polygon(0 0, 90% 0, 100% 100%, 0% 100%);
}

.split-images .img-right {
    clip-path: polygon(10% 0, 100% 0, 100% 100%, 0% 100%);
}

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

.baner-content .text-content h2 {
    font-size: 48px;
    font-weight: 700;
    color: #8b4513;
    letter-spacing: -0.5px;
}

.center-navigation {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    padding: 0 40px;
    margin: 40px 0;
}

.center-navigation a {
    color: #8b4513;
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    padding: 14px 26px;
    background: #fff;
    border: 2px solid #8b4513;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 25px;
}

.center-navigation a:hover {
    background: #8b4513;
    color: #fff;
}

#portfolio {
    padding: 60px 0;
    background: #fdf5e6;
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 40px;
}

.inner-container .row {
    margin: 0;
}

.inner-container .col-md-4 {
    display: none;
}

.inner-container .col-md-8 {
    width: 100%;
    padding: 0;
}

.symmetric-content {
    background: #fff;
    padding: 50px;
    box-shadow: 0 8px 30px rgba(139, 69, 19, 0.15);
    border-left: 8px solid #8b4513;
    border-right: 8px solid #8b4513;
}

.projects-holder-3 h3 {
    font-size: 36px;
    font-weight: 700;
    color: #8b4513;
    margin-bottom: 32px;
    text-align: center;
}

.projects-holder-3 p {
    font-size: 17px;
    line-height: 31px;
    color: #444;
}

.projects-holder-3 img {
    display: none;
}

footer {
    background: #8b4513;
    padding: 60px 40px;
    margin-top: 80px;
}

footer .logo {
    margin-bottom: 40px;
}

footer .logo a {
    color: #fff;
    text-decoration: none;
    font-size: 22px;
    font-weight: 700;
    display: block;
    text-align: center;
}

.footer-nav-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    max-width: 900px;
    margin: 0 auto 35px;
}

.footer-nav-grid a {
    color: #fff;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    padding: 16px;
    background: rgba(255,255,255,0.15);
    display: block;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.3);
    transition: all 0.3s;
    border-radius: 8px;
}

.footer-nav-grid a:hover {
    background: rgba(255,255,255,0.25);
}

footer p {
    color: rgba(255,255,255,0.9);
    font-size: 13px;
    text-align: center;
    margin: 0;
}

@media (max-width: 991px) {
    .footer-nav-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .split-images {
        flex-direction: column;
        gap: 20px;
        padding: 0 30px;
    }
    
    .split-images .img-left,
    .split-images .img-right {
        height: 200px;
        clip-path: none;
    }
    
    .baner-content .text-content h2 {
        font-size: 34px;
    }
    
    .center-navigation {
        flex-direction: column;
        padding: 0 30px;
        gap: 10px;
    }
    
    .center-navigation a {
        padding: 12px 20px;
    }
    
    .content-wrapper {
        padding: 0 30px;
    }
    
    .symmetric-content {
        padding: 35px 25px;
    }
    
    .projects-holder-3 h3 {
        font-size: 28px;
    }
    
    .footer-nav-grid {
        grid-template-columns: 1fr;
    }
}

/* containerの幅制限を解除 */
.container {
    max-width: none;
    width: 100%;
}