* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html, body {
    width: 100%;
    height: 100%;
    scroll-behavior: smooth; /* 平滑滚动 */
}
body {
    font-family: "Noto Sans SC", sans-serif;
    background: #F5F5DC;
    color: #2C2C2C;
    line-height: 1.6;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 顶部导航 */
.header {
    background: #8B4515;
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-family: "Ma Shan Zheng", cursive;
}
.nav {
    display: flex;
    gap: 25px;
}
.nav a {
    color: #fff;
    text-decoration: none;
    transition: 0.3s;
}
.nav a:hover {
    color: #D2B48C;
}
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 22px;
    cursor: pointer;
}
.mobile-menu {
    display: none;
    background: #8B4515;
    padding: 15px;
}
.mobile-menu a {
    display: block;
    color: #fff;
    padding: 10px 0;
    text-decoration: none;
}

/* Banner样式（视频+图片适配） */
.banner {
    position: relative;
    width: 100%;
    height: calc(100vh - 70px);
    overflow: hidden;
}
/* PC端视频背景 */
.banner-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}
/* 移动端图片背景（默认隐藏） */
.banner-img {
    display: none;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
/* Banner遮罩层 */
.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
}
.banner-text h2 {
    font-size: 50px;
    font-family: "Ma Shan Zheng", cursive;
    margin-bottom: 10px;
}
.banner-text p {
    font-size: 20px;
    margin-bottom: 20px;
}
.btn {
    display: inline-block;
    background: #CD5C5C;
    color: #fff;
    padding: 12px 25px;
    border-radius: 6px;
    text-decoration: none;
    font-family: "Ma Shan Zheng", cursive;
    transition: 0.3s;
}
.btn:hover {
    background: #b94b4b;
}

/* 通用板块样式 */
.main {
    padding: 60px 0;
}
.section {
    margin-bottom: 80px;
}
.section-title {
    text-align: center;
    margin-bottom: 40px;
}
.section-title h2 {
    font-size: 36px;
    font-family: "Ma Shan Zheng", cursive;
    color: #8B4515;
    margin-bottom: 10px;
}
.section-title .line {
    width: 80px;
    height: 3px;
    background: #CD5C5C;
    margin: 0 auto;
}

/* 搜索框 */
.search-box {
    max-width: 600px;
    margin: 0 auto 30px;
    position: relative;
}
.search-box input {
    width: 100%;
    padding: 14px 15px;
    border: 1px solid #D2B48C;
    border-radius: 6px;
    outline: none;
    font-size: 15px;
}
.search-box button {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: #8B4515;
    color: #fff;
    border: none;
    padding: 8px 15px;
    border-radius: 4px;
    cursor: pointer;
}
#clear-search {
    right: 50px;
    background: none;
    color: #999;
    display: none;
}

/* 查看所有按钮 */
.toggle-box {
    text-align: center;
    margin-bottom: 20px;
}
.btn-toggle {
    background: #8B4515;
    color: #fff;
    border: none;
    padding: 12px 25px;
    border-radius: 6px;
    font-family: "Ma Shan Zheng", cursive;
    font-size: 16px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: 0.3s;
}
.btn-toggle:hover {
    background: #703610;
}

/* 人物网格 */
.person-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 15px;
}
@media (min-width: 640px) { .person-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 768px) { .person-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1024px) { .person-grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 1280px) { .person-grid { grid-template-columns: repeat(7, 1fr); } }

.person-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    cursor: pointer;
    transition: 0.3s;
}
.person-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}
.person-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}
.person-info {
    padding: 12px;
    text-align: center;
}
.person-info h3 {
    font-family: "Ma Shan Zheng", cursive;
    color: #8B4515;
    font-size: 18px;
}
.person-info p {
    color: #666;
    font-size: 14px;
}

/* 百业信息卡片样式 */
.industry-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 20px;
    padding: 0 10px;
}
/* 平板及以上一行3个卡片 */
@media (min-width: 768px) {
    .industry-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
}

.industry-card {
    background: #fff;
    border-radius: 10px;
    padding: 30px 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #f0e6d2;
}
.industry-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    border-color: #8B4515;
}

.industry-icon {
    width: 80px;
    height: 80px;
    line-height: 80px;
    margin: 0 auto 20px;
    background: #f8f2e4;
    border-radius: 50%;
    color: #8B4515;
    font-size: 32px;
}

.industry-card h3 {
    font-family: "Ma Shan Zheng", cursive;
    font-size: 24px;
    color: #8B4515;
    margin-bottom: 15px;
}

.industry-card p {
    color: #555;
    font-size: 15px;
    line-height: 1.7;
}

/* 照片网格 */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 20px;
}
@media (min-width:768px) { .photo-grid { grid-template-columns: repeat(2,1fr); } }
@media (min-width:1024px) { .photo-grid { grid-template-columns: repeat(3,1fr); } }
.photo-item {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    cursor: pointer;
}
.photo-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: 0.3s;
}
.photo-item:hover img {
    transform: scale(1.05);
}
.photo-info {
    padding: 15px;
}
.photo-info h3 {
    font-family: "Ma Shan Zheng", cursive;
    color: #8B4515;
    font-size: 18px;
}

/* 风景网格 */
.scenery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}
@media (min-width:768px) { .scenery-grid { grid-template-columns: repeat(4,1fr); } }
.scenery-item {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    cursor: pointer;
}
.scenery-item img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    transition: 0.3s;
}
.scenery-item:hover img {
    transform: scale(1.05);
}
.scenery-info {
    padding: 10px;
    text-align: center;
}
.scenery-info h3 {
    font-family: "Ma Shan Zheng", cursive;
    color: #8B4515;
    font-size: 16px;
}

/* 公告板块 */
.announce-box {
    background: #fff;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.announce-item {
    border-left: 4px solid #CD5C5C;
    padding-left: 15px;
    margin-bottom: 25px;
}
.announce-item:nth-child(2) { border-color: #8B4515; }
.announce-item:nth-child(3) { border-color: #D2B48C; }
.announce-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}
.announce-head h3 {
    font-family: "Ma Shan Zheng", cursive;
    color: #8B4515;
    font-size: 20px;
}
.announce-head span {
    color: #999;
    font-size: 14px;
}
.announce-detail {
    color: #CD5C5C;
    text-decoration: none;
    margin-top: 8px;
    display: inline-block;
}

/* 大图弹窗 */
.modal-image {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.95);
    z-index: 999999 !important;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal-image img {
    max-width: 95%;
    max-height: 90vh;
    object-fit: contain;
    cursor: pointer;
}
.modal-image button {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(0,0,0,0.5);
    color: #fff;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    z-index: 10;
}

/* 人物详情弹窗 */
.modal-person {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.9);
    z-index: 99999 !important;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal-content {
    background: #fff;
    border-radius: 10px;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow: auto;
    position: relative;
}
#close-modal {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(0,0,0,0.3);
    color: #fff;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    z-index: 10;
    cursor: pointer;
}
.person-cover-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    cursor: pointer;
}
.person-detail-info {
    padding: 30px;
}
.person-detail-info h2 {
    font-family: "Ma Shan Zheng", cursive;
    color: #8B4515;
    font-size: 30px;
    margin-bottom: 5px;
}
.person-detail-info p {
    color: #D2B48C;
    font-size: 18px;
    margin-bottom: 20px;
}
.person-desc-box h3 {
    font-family: "Ma Shan Zheng", cursive;
    color: #8B4515;
    font-size: 22px;
    margin-bottom: 10px;
}

/* 公告弹窗 */
.modal-announce {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.9);
    z-index: 99999 !important;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.modal-announce-content {
    background: #fff;
    padding: 40px;
    border-radius: 10px;
    max-width: 700px;
    width: 100%;
    position: relative;
}
#close-announce-modal {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(0,0,0,0.3);
    color: #fff;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    right: 30px;
    bottom: 30px;
    background: #8B4515;
    color: #fff;
    border: none;
    border-radius: 50px;
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}
.back-to-top.show {
    opacity: 1;
    visibility: visible;
}
.back-to-top:hover {
    background: #703610;
    transform: translateY(-3px);
}
.back-to-top i {
    font-size: 18px;
}

/* 移动端适配 */
@media (max-width: 768px) {
    /* 移动端只显示图片Banner，隐藏视频 */
    .banner-video {
        display: none !important;
    }
    .banner-img {
        display: block !important;
    }
    
    /* 返回顶部按钮适配 */
    .back-to-top span {
        display: none;
    }
    .back-to-top {
        width: 50px;
        height: 50px;
        border-radius: 50%;
        padding: 0;
        justify-content: center;
    }
    
    /* 移动端导航适配 */
    .nav {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
    }
}

/* 底部 */
.footer {
    background: #8B4515;
    color: #fff;
    text-align: center;
    padding: 50px 20px;
}
.footer h2 {
    font-family: "Ma Shan Zheng", cursive;
    font-size: 28px;
    margin-bottom: 15px;
}
.footer p {
    margin-bottom: 10px;
    opacity: 0.9;
}