html {
    scroll-behavior: smooth;
    margin: 0;
    padding: 0;
}
body {
    background: #fff;
    color: #1e2a2e;
    line-height: 1.7;
    padding: 0;
    margin: 0;
    overflow-x: hidden; /* 禁止横向滚动条 */
}
img {
    max-width: 100%;
    display: block;
}
a {
    text-decoration: none;
    color: inherit;
}
ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* 锚点偏移补偿 */
[id] {
    scroll-margin-top: 80px;
}

/* ===== 导航 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #ffffffef;
    backdrop-filter: blur(8px);
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    z-index: 999;
    padding: 12px 0;
    transition: box-shadow 0.3s ease;
}
.nav-container {
    max-width: 1280px;
    margin: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
}
.logo {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 1px;
    background: linear-gradient(135deg, #005f73, #0a7e8c);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.nav-links {
    display: flex;
    gap: 28px;
    align-items: center;
}
.nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: #1e2a2e;
    transition: 0.2s;
}
.nav-links a:hover {
    color: #005f73;
}
.contact-btn {
    background: #005f73;
    color: #fff !important;
    padding: 8px 18px;
    border-radius: 40px;
    transition: 0.2s;
}
.contact-btn:hover {
    background: #0a7e8c;
    transform: scale(0.98);
}
.hamburger {
    display: none;
    border: none;
    background: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}
.hamburger span {
    width: 24px;
    height: 2px;
    background: #1e2a2e;
    border-radius: 2px;
    transition: 0.2s;
}

/* ===== 移动端菜单 ===== */
.mobile-menu {
    position: fixed;
    top: 66px;
    left: 0;
    width: 100%;
    background: #fff;
    box-shadow: 0 12px 20px rgba(0,0,0,0.1);
    z-index: 998;
    display: none;
    transform: translateY(-10px);
    transition: all 0.2s ease;
}
.mobile-menu.active {
    display: block;
    transform: translateY(0);
}
.mobile-menu a {
    display: block;
    padding: 14px 24px;
    border-bottom: 1px solid #edf2f7;
    color: #1e2a2e;
    font-weight: 500;
}
.mobile-menu a:active {
    background: #f0f9fa;
}
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.35);
    z-index: 997;
    display: none;
    backdrop-filter: blur(2px);
}
.menu-overlay.active {
    display: block;
}

/* ===== Hero 全屏无空白 ===== */
.hero {
    margin-top: 66px;
    padding: 80px 0; /* 去掉左右内边距 */
    text-align: center;
    color: #fff;
    background: url('https://assets.chenyidz.com/dierci-chenyidz/images/beijing.jpg') center center/cover no-repeat;
    position: relative;
    z-index: 1;
    width: 100vw; /* 全屏宽度 */
    margin-left: calc(-50vw + 50%); /* 拉满全屏 */
}
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
}
.hero h1 {
    font-size: 40px;
    margin-bottom: 16px;
    font-weight: 700;
    position: relative;
    z-index: 2;
    padding: 0 20px;
}
.hero p {
    font-size: 18px;
    max-width: 720px;
    margin: 0 auto 28px;
    opacity: 0.95;
    position: relative;
    z-index: 2;
    padding: 0 20px;
}
.hero .btn {
    position: relative;
    z-index: 2;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-block;
    background: #fff;
    color: #005f73;
    padding: 12px 30px;
    border-radius: 40px;
    font-weight: 600;
    transition: 0.2s;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}
.btn:hover {
    background: #f0f7f8;
    transform: translateY(-2px);
}

/* ===== 全局内容去空白 ===== */
.section {
    max-width: 1280px;
    margin: 0 auto;
    padding: 30px 16px; /* 减少内边距 */
}
.section-title {
    text-align: center;
    font-size: 2rem;
    margin: 0 0 24px 0;
    color: #003d4d;
    position: relative;
    padding-bottom: 12px;
}
.section-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 3px;
    background: #005f73;
    border-radius: 3px;
}

/* ===== 简介/配套/实景 ===== */
.intro-content {
    display: flex;
    gap: 30px;
    align-items: center;
    margin: 0;
}
.intro-img {
    flex: 1;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    background: #f0f4f5;
}
.intro-img img {
    width: 100%;
    height: 320px;
    object-fit: cover;
    transition: 0.3s;
}
.intro-text {
    flex: 1;
    font-size: 1rem;
    line-height: 1.75;
    padding: 0;
    margin: 0;
}

/* ===== 参数卡片 ===== */
.params-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 0;
}
.param-card {
    background: #f8fafc;
    padding: 24px;
    border-radius: 24px;
    transition: 0.2s;
    border: 1px solid #eef2f6;
}
.param-card h3 {
    margin-bottom: 18px;
    color: #005f73;
}

/* ===== 周边配套 ===== */
.amenities-list li {
    margin-bottom: 10px;
    font-size: 1rem;
}

/* ===== 租赁模块 ===== */
.rental-highlight {
    background: linear-gradient(145deg, #f4f9fb, #ffffff);
    padding: 40px 20px;
    border-radius: 36px;
    text-align: center;
    box-shadow: 0 12px 28px rgba(0,0,0,0.04);
    border: 1px solid #e0edf0;
    margin: 0;
}
.phone-number {
    font-size: 36px;
    font-weight: 800;
    color: #005f73;
    margin: 10px 0;
    letter-spacing: 1px;
}
.phone-number a {
    display: inline-block;
    padding: 4px 8px;
}
.area-badge {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin: 20px 0;
}
.area-badge span {
    background: #eef2f9;
    color: #005f73;
    padding: 6px 16px;
    border-radius: 40px;
    font-weight: 500;
    font-size: 0.9rem;
}

/* ===== 数据亮点条 ===== */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 30px;
    padding: 0;
}
.stat-item {
    text-align: center;
    padding: 24px 10px;
    background: #fff;
    border-radius: 20px;
    border: 1px solid #eef2f6;
    transition: transform 0.2s, box-shadow 0.2s;
}
.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,95,115,0.08);
}
.stat-num {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: #005f73;
    line-height: 1.2;
}
.stat-label {
    display: block;
    font-size: 14px;
    color: #7a8e95;
    margin-top: 6px;
}

/* ===== 实景展示 ===== */
.show-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    padding: 0;
}
.show-card {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    cursor: pointer;
}
.show-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.show-card:hover img {
    transform: scale(1.06);
}
.show-caption {
    position: absolute;
    bottom: 12px;
    left: 12px;
    background: rgba(0,0,0,0.55);
    color: #fff;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    backdrop-filter: blur(4px);
}

/* ===== 地图板块 ===== */
.map-info {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, #f0f7f8, #f8fafc);
    border-radius: 24px;
    border: 1px solid #e0edf0;
    margin: 0;
}
.map-icon {
    font-size: 48px;
    margin-bottom: 16px;
}
.map-address {
    font-size: 22px;
    font-weight: 600;
    color: #003d4d;
    margin-bottom: 8px;
}
.map-traffic {
    font-size: 16px;
    color: #5a7a84;
    margin-bottom: 20px;
}
.map-btns {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.map-btn {
    font-size: 15px;
    padding: 12px 24px;
}
.map-tag-bar {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}
.map-tag {
    background: #e0f0f2;
    color: #005f73;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}

/* ===== 页脚 去底部空白 ===== */
.footer {
    background: #0d1b1e;
    color: #a0b8bd;
    text-align: center;
    padding: 40px 24px 20px;
    margin: 0;
}
.footer-inner {
    max-width: 800px;
    margin: 0 auto;
}
.footer-brand {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
    letter-spacing: 1px;
}
.footer-divider {
    width: 60px;
    height: 1px;
    background: rgba(255,255,255,0.15);
    margin: 20px auto;
}
.footer .update-time {
    background: rgba(255,255,255,0.08);
    color: #6c8a8f;
    font-size: 13px;
    display: inline-block;
    padding: 4px 12px;
    border-radius: 40px;
}

/* ===== 移动端底部条 ===== */
.mobile-call-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #005f73;
    z-index: 999;
    text-align: center;
    box-shadow: 0 -4px 12px rgba(0,0,0,0.1);
}
.mobile-call-btn {
    color: #fff;
    padding: 14px;
    display: block;
    font-weight: 700;
    font-size: 18px;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    body {
        padding-bottom: 30px;
    }
    .nav-links {
        display: none;
    }
    .hamburger {
        display: flex;
    }
    .intro-content {
        flex-direction: column;
        gap: 20px;
    }
    .params-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .hero {
        padding: 60px 0;
    }
    .hero h1 {
        font-size: 28px;
    }
    .mobile-call-bar {
        display: block;
    }
    .phone-number {
        font-size: 32px;
    }
    .section {
        padding: 20px 12px;
    }
    .section-title {
        margin-bottom: 20px;
        font-size: 1.5rem;
    }
    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    .stat-num {
        font-size: 1.5rem;
    }
    .map-address {
        font-size: 18px;
    }
    .show-grid-3 {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .show-card {
        aspect-ratio: 16/9;
    }
    .show-caption {
        font-size: 12px;
        bottom: 8px;
        left: 8px;
        padding: 3px 10px;
    }
}
@media (min-width: 769px) and (max-width: 1024px) {
    .params-grid {
        grid-template-columns: repeat(2,1fr);
    }
}