/* ================= ABOUT US 模块 ================= */
.about-section {
    padding: 100px 5%;
    background-color: #ffffff;
    overflow: hidden;
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 60px;
}

.about-text {
    flex: 1;
    position: relative;
}

.about-bg-text {
    position: absolute;
    top: -20px;
    left: -10px;
    font-size: 55px;
    font-weight: 900;
    color: #eef4fb;
    z-index: 0;
    letter-spacing: 0.05em;
    pointer-events: none;
    user-select: none;
}

.about-content {
    position: relative;
    z-index: 1;
}

.about-subtitle {
    font-size: 24px;
    font-weight: bold;
    color: #05325f;
    margin-bottom: 20px;
    letter-spacing: 0.1em;
}

.about-title {
    font-size: 38px;
    font-weight: bold;
    color: #05325f;
    line-height: 1.4;
    margin-bottom: 30px;
    letter-spacing: 0.05em;
}

.about-desc {
    font-size: 18px;
    font-weight: bold;
    line-height: 2;
    color: #05325f;
    margin-bottom: 40px;
    letter-spacing: 0.05em;
}

.about-btn {
    display: inline-block;
    background-color: #05325f;
    color: #ffffff;
    text-decoration: none;
    font-size: 16px;
    font-weight: bold;
    padding: 18px 60px;
    border-radius: 8px;
    transition: background-color 0.3s ease;
    letter-spacing: 0.1em;
}

.about-btn:hover {
    background-color: #0a4a8c;
}

.about-image {
    flex: 1;
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* ================= ITEMS (事業案内) 模块 ================= */
.items-section {
    background-color: #f3f3f3;
    padding: 80px 0 0 0;
    text-align: center;
    overflow: hidden;
}

.items-header {
    position: relative;
    display: inline-block;
    margin-bottom: 50px;
}

.items-bg-text {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 50px;
    font-weight: 900;
    color: #cce0f5;
    letter-spacing: 0.1em;
    z-index: 0;
    pointer-events: none;
    user-select: none;
    white-space: nowrap;
}

.items-title {
    position: relative;
    z-index: 1;
    font-size: 34px;
    font-weight: bold;
    color: #05325f;
    letter-spacing: 0.1em;
}

.items-image-wrapper {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
}

.items-image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    margin-bottom: 0;
}

/* ================= CORPORATE POLICY (事業方針) 模块 ================= */
.policy-section {
    width: 100%;
    padding: 120px 5%;
    background-image: url('https://aimg8.dlssyht.cn/u/2326272/ev_user_module_content_tmp/2026_07_01/tmp1782864643_2326272_s.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    color: #ffffff;
}

.policy-container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.policy-content {
    max-width: 800px;
}

.policy-header {
    position: relative;
    margin-bottom: 40px;
}

.policy-bg-text {
    position: absolute;
    top: -35px;
    left: 0;
    font-size: 56px;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.2);
    letter-spacing: 0.05em;
    z-index: 0;
    pointer-events: none;
    user-select: none;
    white-space: nowrap;
}

.policy-title-main {
    position: relative;
    z-index: 1;
    font-size: 28px;
    font-weight: bold;
    color: #ffffff;
    letter-spacing: 0.15em;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
}

.policy-subtitle {
    font-size: 34px;
    font-weight: bold;
    color: #ffffff;
    margin-bottom: 30px;
    letter-spacing: 0.05em;
    line-height: 1.4;
    text-shadow: 1px 1px 5px rgba(0, 0, 0, 0.5);
}

.policy-desc {
    font-size: 18px;
    font-weight: bold;
    line-height: 2;
    color: #ffffff;
    margin-bottom: 50px;
    letter-spacing: 0.05em;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.4);
}

.policy-btn {
    display: inline-block;
    background-color: #ffffff;
    color: #05325f;
    text-decoration: none;
    font-size: 16px;
    font-weight: bold;
    padding: 18px 60px;
    border-radius: 50px;
    transition: all 0.3s ease;
    letter-spacing: 0.1em;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.policy-btn:hover {
    background-color: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* ================= ACCEPTE MATERIALS (取扱品目) 模块 ================= */
.materials-section {
    background-color: #f5f8fa;
    padding: 100px 5%;
    overflow: hidden;
}

.materials-container {
    max-width: 1400px;
    margin: 0 auto;
}

.materials-header {
    text-align: center;
    position: relative;
    margin-bottom: 60px;
}

.materials-bg-text {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 55px;
    font-weight: 900;
    color: #dbeaf9;
    letter-spacing: 0.1em;
    z-index: 0;
    pointer-events: none;
    user-select: none;
    white-space: nowrap;
}

.materials-title {
    position: relative;
    z-index: 1;
    font-size: 34px;
    font-weight: bold;
    color: #05325f;
    letter-spacing: 0.1em;
}

.materials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.material-card {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    display: flex;
    flex-direction: column;
}

.material-card img {
    width: 100%;
    height: auto;
    display: block;
    margin-bottom: 25px;
    border-radius: 4px;
}

.material-card-title {
    font-size: 24px;
    font-weight: bold;
    color: #05325f;
    margin-bottom: 15px;
    letter-spacing: 0.05em;
}

.material-card-desc {
    font-size: 16px;
    line-height: 1.8;
    color: #05325f;
    letter-spacing: 0.05em;
}

/* ================= 首页专属响应式 ================= */
@media (max-width: 1024px) {
    .materials-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .about-section { padding: 60px 20px; }
    .about-container { flex-direction: column; gap: 40px; }
    .about-text { text-align: center; padding: 0; }
    .about-bg-text { top: -15px; left: 50%; transform: translateX(-50%); font-size: 40px; }
    .about-subtitle { font-size: 20px; }
    .about-title { font-size: 28px; }
    .about-desc { font-size: 16px; margin-bottom: 25px; text-align: left; }
    .about-btn { width: 100%; max-width: 300px; padding: 15px 0; }

    .items-section { padding: 50px 0 0 0; }
    .items-header { margin-bottom: 30px; }
    .items-bg-text { top: -18px; font-size: 36px; }
    .items-title { font-size: 24px; }
    .items-image-wrapper { padding: 0 15px; }

    .policy-section { padding: 80px 20px; }
    .policy-bg-text { font-size: 28px; top: -22px; }
    .policy-title-main { font-size: 22px; }
    .policy-subtitle { font-size: 26px; margin-bottom: 20px; }
    .policy-desc { font-size: 15px; margin-bottom: 35px; text-align: left; }
    .policy-btn { width: 100%; max-width: 300px; padding: 15px 0; text-align: center; }

    .materials-section { padding: 60px 20px; }
    .materials-bg-text { font-size: 34px; top: -15px; }
    .materials-title { font-size: 24px; }
    .material-card { padding: 20px; }
    .material-card-title { font-size: 20px; }
    .material-card-desc { font-size: 15px; text-align: left; }
}