/* ==========================================
   main.css - 深圳奥迪通租车官网主样式文件
   配色升级版 v3.0 | 更新: 2026-04-05
   主色调: 天蓝 + 黄金/紫色/朱红点缀
   ========================================== */

/* ============ CSS变量定义 ============ */
:root {
    --primary: #0A6EBD;
    --primary-dark: #064A82;
    --primary-light: #3D9BE0;
    --secondary: #0B1D3A;
    --accent-gold: #D4A843;
    --accent-gold-dark: #B8891F;
    --accent-purple: #6B2D8B;
    --accent-red: #C0392B;
    --dark: #071225;
    --light: #F4F8FC;
    --gray: #DDE5EF;
    --light-blue: #E8F2FC;
    --blue: #0A6EBD;
    --green: #009c3b;
    --warn: #ff9800;
    --yellow: #f8b500;
    --accent: #C0392B;
    --purple: #6B2D8B;
    --gold: #D4A843;
    --transition: all 0.4s ease;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --font-family: 'Segoe UI', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
}

/* ============ 动画关键帧 ============ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}
.fade-in-up { animation: fadeInUp 0.6s ease forwards; }

/* ============ 基础重置 ============ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-family); color: #333; background: #fff; line-height: 1.6; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
a { text-decoration: none; transition: var(--transition); }
a:link, a:visited { color: #333; }
a:hover { color: var(--primary); }
/* ============ 列表通用 ============ */
ul, ol , ul > li{ list-style: none; }
ul { display: flex; }

/* ============ 标题样式 ============ */
h2 { color: var(--secondary); font-size: 2rem; font-weight: 700; letter-spacing: 0.1rem; text-align: center; margin: 2.5rem 0 2rem 0; }

/* ============ H1标题（参考GZ，简洁高级） ============ */
h1.hero-title {
    color: var(--secondary);
    font-size: 2.4rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1.5rem;
    letter-spacing: 0.06rem;
    line-height: 1.3;
}

/* ============ H1英雄标题（动感红色金属渐变） ============ */

/* 非hero的h1（如表格/卡片内标题） */
h1 {
    color: var(--secondary);
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    letter-spacing: 0.05rem;
}
h3 { font-size: 1.5rem; line-height: 2rem; letter-spacing: 0.1rem; font-weight: 600; }
h4 { font-size: 1.2rem; font-weight: 600; }

/* ============ 容器 ============ */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1rem; }

/* ============ 顶部栏 ============ */
.top { height: 3rem; background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%); }
.top div { position: fixed; top: 0; line-height: 3rem; color: white; font-size: 1.1rem; z-index: 31; }
.top .left { left: 0; border: 0 solid transparent; border-bottom: 3rem solid var(--primary); border-right: 40px solid transparent; width: calc(50% + 40px); }
.top .right { left: 50%; border: 0 solid transparent; border-top: 3rem solid var(--secondary); border-left: 40px solid transparent; width: 50%; }
.tel { left: 5%; font-weight: 500; }
.tel a:link, .tel a:active, .tel a:visited { color: white; }
.email { right: 5%; }

/* ============ 导航头部 ============ */
#site-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.2rem 1rem; background: #fff;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    position: sticky; top: 0; z-index: 100; max-width: 100%; overflow: visible;
    border-bottom: 2px solid transparent;
    background-image: linear-gradient(#fff, #fff), linear-gradient(90deg, var(--accent-gold), var(--primary), var(--accent-purple));
    background-origin: border-box; background-clip: padding-box, border-box;
    transition: padding 0.3s ease, box-shadow 0.3s ease, height 0.3s ease;
    min-height: 60px;
}
#site-header.scrolled {
    padding: 0.3rem 2rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    min-height: 85px;
}

/* 滚动时导航动态变小 - 已移至JS文件 */

/* SEO友好标题（隐藏但对搜索引擎可见） */
.site-title {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.logo-wrap { flex-shrink: 0; display: block; transition: transform 0.3s ease; }
.logo-wrap:hover { transform: scale(1.02); }
.logo-img { height: 100px; margin-top: -1rem; width: auto; display: block; transition: height 0.3s ease; }
.nav-list { display: flex; list-style: none; gap: 0.1rem; flex-wrap: wrap; justify-content: center; margin-right: 4rem; }
.nav-list > li, .nav-list > li > a {
    display: block; padding: 0.5rem 0.8rem; font-size: 0.95rem; color: #333;
    white-space: nowrap; border-radius: 6px;
    transition: color 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
    font-weight: 500; position: relative; text-decoration: none;
}
.nav-list > li > a:hover { background-color: var(--primary); color: #fff; }
.nav-list > li.present > span { 
    display: block; padding: 0.5rem 0.8rem;border-radius: 6px;
    background-color: var(--accent-gold); color: #fff; }

/* ============ 下拉菜单 ============ */
.nav-dropdown { position: relative; }
.nav-dropdown > a::after { content: ' ▾'; font-size: 1rem; vertical-align: middle; 
    color: var(--accent-gold-dark);}
.dropdown-menu {
    position: absolute; top: 100%; left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: #fff; border-radius: 10px;
    box-shadow: 0 10px 35px rgba(0,0,0,0.18);
    min-width: 140px; opacity: 0; visibility: hidden;
    transition: all 0.3s ease; z-index: 200;
    border-left: 3px solid var(--accent-gold);
    padding: 0.5rem 0; overflow: hidden;
}
.dropdown-menu::before {
    content: ''; position: absolute; top: -6px; left: 50%; transform: translateX(-50%);
    border-left: 6px solid transparent; border-right: 6px solid transparent;
    border-bottom: 6px solid var(--accent-gold);
}
.nav-dropdown:hover .dropdown-menu,
.nav-dropdown.open .dropdown-menu {
    opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.dropdown-menu li { display: block; border-bottom: 1px solid var(--light-blue); position: relative; transition: all 0.2s ease; }
.dropdown-menu li:last-child { border-bottom: none; }
.dropdown-menu a {
    display: block; padding: 0.5rem 0.8rem; color: #333; font-size: 0.95rem;
    width: 100%; border-radius: 0; background: transparent; transition: all 0.3s ease;
}
.dropdown-menu a:hover,
.dropdown-menu li.present a {
    background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; padding-left: 1.5rem;
}
.dropdown-menu li::before {
    content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 0;
    background: var(--accent-gold); transition: width 0.3s ease;
}
.dropdown-menu li:hover::before { width: 3px; }
.header-lang {
    position: absolute; top: 0.4rem; right: 0.8rem;
    z-index: 10;
}
.header-lang a {
    color: var(--primary); padding: 0.2rem 0.5rem; border: 2px solid var(--accent-gold);
    border-radius: 4px; font-weight: 500; transition: all 0.3s ease;
}
.header-lang a:hover { background: var(--accent-gold); color: #fff; }

/* ============ 手机端汉堡菜单按钮 ============ */
.mobile-menu-btn {
    display: none; /* 桌面端隐藏 */
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 36px; height: 36px;
    background: none; border: none; cursor: pointer;
    padding: 0; z-index: 110;
    position: relative;
}
.mobile-menu-btn span {
    display: block;
    width: 22px; height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.mobile-menu-btn span:nth-child(1) { transform: translateY(-6px); }
.mobile-menu-btn span:nth-child(3) { transform: translateY(6px); }
/* 汉堡按钮激活态 - 变X */
.mobile-menu-btn.active span:nth-child(1) { transform: rotate(45deg); }
.mobile-menu-btn.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.mobile-menu-btn.active span:nth-child(3) { transform: rotate(-45deg); }

/* ============ 英雄横幅区 ============ */
.hero-section {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 45%, var(--accent-purple) 100%);
    color: #fff; padding: 2rem 1rem 3rem; position: relative; overflow: hidden;
}
.hero-section::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 200"><circle cx="30" cy="30" r="20" fill="none" stroke="rgba(255,255,255,0.07)" stroke-width="0.8"/><circle cx="170" cy="50" r="30" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="0.5"/><rect x="140" y="140" width="35" height="35" rx="4" fill="none" stroke="rgba(255,255,255,0.06)" stroke-width="0.8"/><polygon points="50,160 80,180 50,200" fill="rgba(255,255,255,0.04)"/><line x1="100" y1="10" x2="100" y2="40" stroke="rgba(255,255,255,0.06)" stroke-width="0.5"/><line x1="85" y1="25" x2="115" y2="25" stroke="rgba(255,255,255,0.06)" stroke-width="0.5"/><circle cx="90" cy="170" r="12" fill="none" stroke="rgba(212,168,67,0.1)" stroke-width="1"/></svg>');
    background-size: 300px; pointer-events: none; animation: pulse 8s ease-in-out infinite;
}
.hero-section::after {
    content: ''; position: absolute; top: -10%; right: -5%;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(212,168,67,0.12) 0%, rgba(107,45,139,0.06) 40%, transparent 70%);
    pointer-events: none;
}
.hero-content { max-width: 1200px; margin: 0 auto 2rem; position: relative; z-index: 1; text-align: center; }
.hero-title { font-size: 2.8rem; font-weight: 700; line-height: 1.3; margin-bottom: 1rem; letter-spacing: 0.05rem; text-shadow: 0 2px 8px rgba(0,0,0,0.25); }
.hero-title-accent {
    font-size: 1.6rem; font-weight: 600; display: inline-block;
    background: linear-gradient(90deg, var(--accent-gold), #F5D78E, var(--accent-gold), #F5D78E);
    background-size: 200% auto;
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    animation: shimmer 4s linear infinite;
}
.hero-sub { font-size: 1.3rem; opacity: 0.95; margin-bottom: 1.5rem; font-weight: 300; }
.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.btn-hero-primary {
    display: inline-block; padding: 1rem 2.2rem;
    background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-gold-dark) 100%);
    color: #fff; border-radius: 8px; font-size: 1.15rem; font-weight: 700;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 18px rgba(212,168,67,0.4); border: none;
}
.btn-hero-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 35px rgba(212,168,67,0.6), 0 0 20px rgba(212,168,67,0.2); color: #fff;
}
.btn-hero-secondary {
    display: inline-block; padding: 1rem 2.2rem;
    background: transparent; color: #fff;
    border: 2px solid rgba(255,255,255,0.8); border-radius: 8px;
    font-size: 1.15rem; font-weight: 700; transition: all 0.3s ease;
}
.btn-hero-secondary:hover { background: rgba(255,255,255,0.15); color: #fff; transform: scale(1.02); border-color: #fff; }
.btn-hero-tertiary {
    display: inline-block; padding: 1rem 2.2rem;
    background: rgba(107,45,139,0.3); color: #fff;
    border: 2px solid rgba(255,255,255,0.5); border-radius: 8px;
    font-size: 1.15rem; font-weight: 700; transition: all 0.3s ease; backdrop-filter: blur(4px);
}
.btn-hero-tertiary:hover { background: rgba(107,45,139,0.5); color: #fff; transform: scale(1.02); }
.hero-trust { display: flex; gap: 1rem; flex-wrap: wrap; font-size: 1rem; opacity: 0.95; }
.hero-trust span {
    display: flex; align-items: center; gap: 0.3rem;
    background: rgba(255,255,255,0.1); backdrop-filter: blur(8px);
    padding: 0.4rem 0.8rem; border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.2); transition: background 0.3s ease;
}
.hero-trust span::before {
    content: "☑️";
}
.hero-trust span:hover { background: rgba(255,255,255,0.2); }
.hero-img-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; position: relative; z-index: 1; }
.hero-card {
    display: block; border-radius: 16px; overflow: hidden; position: relative;
    aspect-ratio: 16/9; box-shadow: 0 8px 30px rgba(0,0,0,0.3); transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.hero-card:hover { transform: translateY(-5px); box-shadow: 0 15px 40px rgba(0,0,0,0.4); }
.hero-card img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s ease; }
@media (min-width: 769px) {
    .hero-card { aspect-ratio: 16/11 !important; }
}
.hero-card:hover img { transform: scale(1.03); }
.hero-card-tag {
    position: absolute; bottom: 1rem; left: 1rem;
    background: rgba(11,29,58,0.9); color: #fff;
    padding: 0.5rem 1.2rem; border-radius: 50px; font-size: 1.05rem; font-weight: 700;
    backdrop-filter: blur(4px); border: 1px solid var(--accent-gold);
}

/* ============ 核心卖点区 ============ */
.section-usp { background: var(--light); padding: 1rem 0 3rem; }
.section-title {
    color: var(--secondary); font-size: 2rem; font-weight: 700;
    text-align: center; margin: 3rem 0 2.5rem 0; letter-spacing: 0.1rem;
    position: relative; display: inline-block; left: 50%; transform: translateX(-50%);
}
.section-title::after {
    content: ''; position: absolute; bottom: -12px; left: 50%; transform: translateX(-50%);
    width: 60px; height: 3px; background: linear-gradient(90deg, var(--accent-gold), var(--primary)); border-radius: 2px;
}
.usp-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.8rem; max-width: 1200px; margin: 0 auto; }
.usp-item {
    background: #fff; border-radius: 16px; padding: 2.2rem 1.8rem;
    box-shadow: 0 2px 16px rgba(0,0,0,0.06); text-align: center;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    border: 1px solid rgba(10,110,189,0.08); position: relative; overflow: hidden;
}
.usp-item::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, var(--accent-gold), var(--primary));
    transform: scaleX(0); transition: transform 0.4s ease; border-radius: 16px 16px 0 0;
}
.usp-item:hover { transform: translateY(-8px); box-shadow: 0 15px 40px rgba(10,110,189,0.15); }
.usp-item:hover::before { transform: scaleX(1); }
.usp-icon { font-size: 3rem; display: block; margin-bottom: 1rem; }
.usp-item h3 { font-size: 1.3rem; color: var(--secondary); margin-bottom: 1rem; font-weight: 700; }
.usp-item p { font-size: 1rem; color: #555; line-height: 1.8; }

/* ============ 服务项目区 ============ */
.section-services { background: #fff; padding: 1rem 0 3rem; }
.service-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.8rem; max-width: 1200px; margin: 0 auto; }
.service-card {
    background: #fff; border-radius: 16px; overflow: hidden;
    box-shadow: 0 2px 16px rgba(0,0,0,0.06); transition: transform 0.4s ease, box-shadow 0.4s ease; border: 1px solid var(--gray);
}
.service-card:hover { transform: translateY(-8px); box-shadow: 0 20px 50px rgba(107,45,139,0.15), 0 8px 25px rgba(0,0,0,0.08); }
.service-card img { width: 100%; height: 220px; object-fit: cover; display: block; transition: transform 0.5s ease; }
.service-card:hover img { transform: scale(1.03); }
.service-body { padding: 1.8rem; }
.service-body h3 { font-size: 1.3rem; color: var(--secondary); margin-bottom: 1rem; font-weight: 700; }
.service-body h3 a { color: inherit; }
.service-body h3 a:hover { color: var(--primary); }
.service-body p { font-size: 1rem; color: #555; line-height: 1.8; margin-bottom: 1rem; }
.service-tag {
    display: inline-block; background: var(--light-blue); color: var(--primary-dark);
    padding: 0.3rem 0.8rem; border-radius: 50px; font-size: 0.85rem;
    margin-right: 0.5rem; margin-bottom: 0.5rem; font-weight: 500;
    border: 1px solid rgba(10,110,189,0.15);
}
.service-link { display: inline-block; color: var(--primary); font-size: 1rem; font-weight: 600; margin-top: 0.5rem; transition: all 0.3s ease; }
.service-link:hover { color: var(--accent-gold-dark); transform: translateX(4px); }

/* ============ 场景区 ============ */
.section-scenes { background: linear-gradient(180deg, var(--light) 0%, #fff 100%); padding: 1rem 0 3rem; }
.scene-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 1rem; max-width: 1200px; margin: 0 auto; }
.scene-grid li {
    background: #fff; border-radius: 12px; padding: 1.3rem; text-align: center;
    border: 2px solid var(--gray); transition: all 0.4s ease; position: relative; overflow: hidden;
}
.scene-grid li::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    opacity: 0; transition: opacity 0.4s ease;
}
.scene-grid li:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: 0 8px 25px rgba(10,110,189,0.15); }
.scene-grid li:hover::before { opacity: 1; }
.scene-grid a { display: block; font-size: 1.05rem; color: #333; font-weight: 600; position: relative; z-index: 1; transition: color 0.3s ease; }
.scene-grid li:hover a { color: #fff; }

/* ============ 核心优势区 ============ */
.section-advantages { background: #fff; padding: 1rem 0 3rem; }
.advantage-list { max-width: 1200px; margin: 0 auto; }
.advantage-list li { display: block; gap: 0.5rem; padding: 1.5rem 1rem;
    border-bottom: 1px solid var(--gray); transition: all 0.3s ease; border-radius: 8px;
}
.advantage-list li:hover { background: var(--light); padding-left: 1rem; padding-right: 1rem; }
.advantage-list li:last-child { border-bottom: none; }
.adv-num {
    font-size: 2.2rem; font-weight: 700; flex-shrink: 0; line-height: 1.2;
    background: linear-gradient(135deg, var(--accent-purple), var(--primary));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.adv-content h3 { font-size: 1.35rem; color: var(--secondary); margin-bottom: 0.6rem; font-weight: 700; }
.adv-content p { font-size: 1rem; color: #555; line-height: 1.8; }

/* ============ FAQ区 ============ */
.section-faq { background: var(--light); padding: 1rem 0 3rem; }
.faq-list { max-width: 900px; margin: 0 auto; }
.faq-item {
    background: #fff; border-radius: 12px; margin-bottom: 1rem;
    overflow: hidden; box-shadow: 0 2px 10px rgba(0,0,0,0.05); transition: box-shadow 0.3s ease;
}
.faq-item:hover { box-shadow: 0 4px 18px rgba(10,110,189,0.1); }
.faq-q {
    padding: 1.3rem 1.8rem; font-size: 1.1rem; color: var(--secondary);
    cursor: pointer; font-weight: 700; display: flex;
    justify-content: space-between; align-items: center;
    transition: all 0.3s ease; border-left: 4px solid var(--accent-gold);
}
.faq-q:hover { background: var(--light-blue); }
.faq-q::after { content: '+'; font-size: 1.8rem; color: var(--primary); transition: transform 0.3s ease; font-weight: 300; }
.faq-item.open .faq-q { background: var(--light-blue); border-left-color: var(--primary); }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-item.open .faq-a { max-height: 400px; }
.faq-a p { padding: 0 1.8rem 1.3rem; font-size: 1rem; color: #555; line-height: 1.8; }
.faq-a a { color: var(--primary); text-decoration: underline; }

/* ============ 行动召唤区 ============ */
.section-cta {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--accent-purple) 50%, var(--primary) 100%);
    color: #fff; padding: 4.5rem 0; position: relative; overflow: visible;
    z-index: 1;
}
.section-cta::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(circle at 80% 20%, rgba(212,168,67,0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 1;
}
.cta-box {
    display: flex; align-items: center; justify-content: space-between;
    gap: 2.5rem; background: rgba(255,255,255,0.08);
    border-radius: 20px; padding: 3rem; padding-bottom: calc(3rem + 80px);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.1); position: relative; z-index: 1;
}
.cta-content h2 { font-size: 2rem; color: #fff; margin-bottom: 1rem; text-align: left; }
.cta-content p { font-size: 1.1rem; color: rgba(255,255,255,0.85); margin-bottom: 1.5rem; }
.button li:nth-child(1) .cta-button {
    background-image: url('../images/dianhua-100.png'), linear-gradient(135deg, var(--yellow) 0%, var(--accent-gold-dark) 100%);
    background-position: 7px center, 0 0;
    background-size: 3rem auto, auto;
    background-repeat: no-repeat, no-repeat;
    padding-left: 4rem;
  }
  .button li:nth-child(2) .cta-button {
    background-image: url('../images/weixin.png');
    background-position: 9px center, 0 0;
    background-size: 3rem auto, auto;
    background-repeat: no-repeat, no-repeat;
    padding-left: 4.2rem;

}
 .button li:nth-child(2) .cta-button:hover {
    background-image: url('../images/weixin.png');
}
.cta-content ul.button {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    padding: 0;
    list-style: none;
}
.cta-content ul.button li {
    list-style: none;
}
.cta-content ul.button .cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    color: #fff;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}
.cta-content ul.button .cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(212,168,67,0.4);   
}

.cta-content h2 { font-size: 2rem; color: #fff; margin-bottom: 1rem; text-align: left; }
.cta-content p { font-size: 1.1rem; color: rgba(255,255,255,0.85); margin-bottom: 1.5rem; }
.cta-btns { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn-primary-lg {
    display: inline-block; padding: 1.1rem 2.2rem;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
    color: #fff; border-radius: 8px; font-size: 1.05rem; font-weight: 700;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 15px rgba(212,168,67,0.4);
}
.btn-primary-lg:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 30px rgba(212,168,67,0.6), 0 0 25px rgba(212,168,67,0.2); color: #fff;
}
.btn-secondary-lg {
    display: inline-block; padding: 1.1rem 2.2rem;
    background: transparent; color: #fff;
    border: 2px solid rgba(255,255,255,0.7); border-radius: 8px;
    font-size: 1.05rem; font-weight: 700; transition: all 0.3s ease;
}
.btn-secondary-lg:hover { background: rgba(255,255,255,0.15); color: #fff; }
.cta-qr { text-align: center; flex-shrink: 0;  }
.cta-qr img {
    border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    border: 2px solid var(--accent-gold);
}
.cta-qr p { font-size: 0.9rem; color: rgba(255,255,255,0.8); margin-top: 0.6rem; }

/* CTA按钮容器 - 电脑端绝对定位在cta-content左上方 */
@media (min-width: 769px) {
    .section-cta .cta-box {
        display: flex !important;
    }
    .section-cta > ul.button {
        position: absolute;
        top: calc(30% + 9rem);
        left: 2rem;
        z-index: 50;
    }
    /* 确保按钮有背景色 - 第一个按钮有金色渐变 */
    .section-cta > ul.button li:first-child a {
        background: url('../images/dianhua-100.png') 1rem center / 3rem auto no-repeat,linear-gradient(135deg, var(--yellow) 0%, var(--accent-gold-dark) 100%) !important;
    }   
    /* 第二个按钮（微信）不需要背景色,但需要图标 */
    .section-cta > ul.button li:nth-child(2) button {
        padding-left: 5rem;
        background:  transparent url('../images/weixin.png') 1rem center / 3rem auto no-repeat !important;
    }
    .section-cta > ul.button li:nth-child(2) button:hover{
        background:  transparent url('../images/weixin.png') 1.3rem center / 3.5rem auto no-repeat !important;
    }
}


/* ============ 租车动态区 ============ */
/* ============ 租车动态 ============ */
.section-news { background: #fff; padding: 1rem 0 4rem; }

/* 标题行：标题居左，更多靠右 */
.news-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto 2rem;
  padding: 0 1rem;
  gap: 1rem;
}
.news-header .section-title {
  position: static;
  transform: none;
  display: block;
  text-align: left;
  margin: 0;
}

/* 更多按钮 */
.news-more-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  padding: 8px 20px;
  border: 2px solid var(--primary);
  border-radius: 50px;
  transition: all 0.3s ease;
  flex-shrink: 0;
}
.news-more-link .arrow {
  display: inline-block;
  transition: transform 0.3s ease;
}
.news-more-link:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(10,110,189,0.3);
}
.news-more-link:hover .arrow {
  transform: translateX(5px);
}

/* 卡片网格 */
.news-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  list-style: none;
}

/* 单张卡片 */
.news-card {
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--gray);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
  position: relative;
}
.news-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--accent-gold), var(--primary));
  opacity: 0;
  transition: opacity 0.35s ease;
  z-index: 1;
  border-radius: 14px 0 0 14px;
}
.news-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(10,110,189,0.12);
  border-color: var(--primary-light);
}
.news-card:hover::before { opacity: 1; }

/* 图片 */
.news-card-img {
  display: block;
  position: relative;
  overflow: hidden;
}
.news-card-img img {
  width: 100%;
  height: 165px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.news-card:hover .news-card-img img { transform: scale(1.05); }
.news-card-cat {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(10,110,189,0.88);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 50px;
  letter-spacing: 0.5px;
}

/* 卡片内容 */
.news-card-body { padding: 1rem 1.1rem 1.2rem; }

.news-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.7rem;
}
.news-date { display: flex; align-items: baseline; gap: 3px; }
.news-date .nd { font-size: 1.7rem; font-weight: 800; color: var(--accent-gold-dark); line-height: 1; }
.news-date .ny { font-size: 0.8rem; color: #999; }
.news-views { font-size: 0.8rem; color: #aaa; }
.news-views i { margin-right: 2px; }

.news-card-title {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: #222;
  line-height: 1.5;
  margin-bottom: 0.6rem;
  text-decoration: none;
  transition: color 0.25s ease;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-title:hover { color: var(--primary); }

.news-card-summary {
  font-size: 0.85rem;
  color: #777;
  line-height: 1.65;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 平板2列 / 手机1列 */
@media (max-width: 1024px) {
  .news-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .news-grid { grid-template-columns: 1fr; gap: 1rem; }
  .news-card-img img { height: 200px; }
  .news-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}

/* ============ 底部 ============ */
#site-footer {
    background: linear-gradient(180deg, var(--dark) 0%, var(--secondary) 100%);
    color: #fff; padding: 3.5rem 0 0;
}
.footer-inner { display: flex; gap: 3.5rem; flex-wrap: wrap; }
.footer-inner.container { background: transparent !important; box-shadow: none !important; }
.footer-brand { flex: 1; min-width: 220px; }
.footer-brand img { filter: brightness(0) invert(1); height: 55px; margin-bottom: 1.2rem; }
.footer-brand p { font-size: 0.95rem; color: rgba(255,255,255,0.7); line-height: 1.7; margin-bottom: 0.6rem; }
.footer-links { display: flex; gap: 2.5rem; flex: 2; flex-wrap: wrap; }
.footer-col { min-width: 150px; }
.footer-col h4 { font-size: 1.1rem; color: var(--primary-light); margin-bottom: 1rem; font-weight: 700; }
.footer-col ul { list-style: none; padding: 0; flex-direction: column; }
.footer-col li { margin-bottom: 0.6rem; }
.footer-col a { color: rgba(255,255,255,0.7); font-size: 0.95rem; transition: color 0.3s ease; }
.footer-col a:hover { color: var(--accent-gold); }
.footer-bottom { margin-top: 2.5rem; padding: 1.2rem; text-align: center; background: rgba(0,0,0,0.25); font-size: 0.9rem; color: rgba(255,255,255,0.5); }
.footer-bottom a { color: rgba(255,255,255,0.5); text-decoration: underline; }

/* ============ 微信悬浮 ============ */

/* ============ 通用底部（旧版兼容） ============ */
#bottom { margin-top: 2rem; padding: 1.5rem; background: var(--secondary); color: rgba(255,255,255,0.85); font-size: 0.9rem; line-height: 1.8; text-align: center; }
#bottom a { color: #fff; }

/* ============ 通用表格样式 ============ */
.biaoge { display: grid; width: 80%; gap: 2px; letter-spacing: 2px; line-height: 2.5rem; text-align: center; align-content: center; }
.biaoge div { word-wrap: break-word; overflow-wrap: break-word; align-content: center; }
.r1 { background-color: var(--primary); color: #fff; font-size: 1.4rem; }
.c1 { background-color: var(--green); border-left: var(--primary) 0.37rem solid; color: #fff; font-size: 1.2rem; }
.c1 a { display: block; color: #fff; }
.c1 a:hover { background: var(--primary); }
.bc { background-color: #ccd5e7; align-content: center; }

/* ============ 辅助类 ============ */
.mb10vh { margin-bottom: 10vh; }
.d_line { border-bottom: #cccccc 1px dotted; margin: 20px 0; height: 1px; clear: both; }
.ul_column { flex-direction: column; }
.img { display: flex; justify-content: center; }
.
.sm { text-align: left; }
.sm ol { padding-left: 1.5rem; }

/* ============ 按钮 ============ */
.btn { background: var(--secondary); color: #fff; }



/* ============ 分页 ============ */
.page { border: #e6e6e6 1px solid; padding: 3px 4px; background: #f5f5f5; margin: 5px; }
.pages { border: var(--purple) 1px solid; padding: 3px 4px; margin: 5px; background: var(--purple); color: #fff; }

/* ============ 移动端底部悬浮栏 ============ */

/* h1响应式 */





/* ============ 底部CTA按钮（桌面端显示在cta-box正下方） ============ */
/* 桌面端：ul.button显示在CTA区 */
ul.button {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 0;
    padding: 0;
    position: relative;
    top: 0;
}

ul.button li {
    display: inline-block;
}

ul.button li a,
ul.button li button {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

/* 电话按钮 - 桌面端样式（与Hero区一致） */
ul.button li:nth-child(1) a {
    display: inline-block; padding: 1rem 2.2rem;
    background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-gold-dark) 100%);
    color: #fff; border-radius: 8px; font-size: 1.15rem; font-weight: 700;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 18px rgba(212,168,67,0.4); border: none;
}
ul.button li:nth-child(1) a:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 35px rgba(212,168,67,0.6), 0 0 20px rgba(212,168,67,0.2); color: #fff;
}

/* 微信按钮 - 桌面端样式（与Hero区一致） */
ul.button li:nth-child(2) button {
    display: inline-block; padding: 1rem 2.2rem;
    background: transparent; color: #fff;
    border: 2px solid rgba(255,255,255,0.8); border-radius: 8px;
    font-size: 1.15rem; font-weight: 700; transition: all 0.3s ease;
}
ul.button li:nth-child(2) button:hover {
    background-image: url('../images/weixin.png')，rgba(255,255,255,0.15);
    background-position: 9px center, 0 0;
    color: #fff; transform: scale(1.02); border-color: #fff;
}

/* 手机端导航和英雄区优化 */
@media (max-width: 992px) {
    /* 覆盖 responsive.css 旧规则 */
    .nav-list {
        display: flex !important;
        position: static !important;
        background: none !important;
        box-shadow: none !important;
        padding: 0 !important;
        z-index: auto !important;
    }
    .nav-list.active {
        display: flex !important;
    }
    .mobile-menu-btn {
        display: flex !important;
    }
    .header-lang { display: none; }
    /* 769-992px区间：保持二级菜单hover显示，不做覆盖 */
}

    
    /* 英雄区：降低高度 */
    .hero-section {
        padding: 1.5rem 0.8rem 2rem;
    }
    
    .hero-title {
        font-size: 1.6rem;
    }
    
    .hero-title-accent {
        font-size: 1rem;
    }
    
    .hero-sub {
        font-size: 0.95rem;
        margin-bottom: 1rem;
    }
    
    .hero-btns {
        margin-bottom: 1rem;
        gap: 0.5rem;
    }
    
    .btn-hero-primary, .btn-hero-secondary, .btn-hero-tertiary {
        padding: 0.7rem 1.2rem;
        font-size: 0.95rem;
    }
    
    .hero-trust {
        gap: 0.5rem;
        display: grid;
        grid-template-columns: 1fr 1fr;
    }
    
    .hero-trust span {
        font-size: 0.8rem;
        padding: 0.3rem 0.6rem;
        justify-content: center;
    }
    
    .hero-img-grid {
        gap: 0.8rem;
    }
    
    .hero-card {
        aspect-ratio: 16/10;
    }

@media (max-width: 480px) {

/* 手机端：ul.button固定底部 - 恢复到原来状态 */

    /* 降低section-cta背景的层级 */
    .section-cta { z-index: 1; }
    .section-cta::before { z-index: 1; }
    
    /* 隐藏section-cta内的cta-box */
    .section-cta .cta-box {
        display: none;
    }
    
    /* 消除电脑端设置的绝对定位 */
    .section-cta > ul.button {
        position: fixed !important;
        top: auto !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        z-index: 9999 !important;
    }
    
    /* 手机端固定底部按钮 - 恢复到原来状态 */
    .section-cta > ul.button {
        display: flex !important;
        flex-direction: row !important;
        flex-wrap: nowrap !important;
        gap: 0 !important;
        width: 100%;
        margin: 0 !important;
        padding: 0 !important;
        background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-gold-dark) 100%);
    }

    .section-cta > ul.button li {
        flex: 1 1 50% !important;
        width: 50% !important;
        max-width: 50% !important;
        list-style: none;
        margin: 0 !important;
        padding: 0 !important;
        box-sizing: border-box;
    }
    
    .section-cta > ul.button li a,
    .section-cta > ul.button li button {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 100%;
        height: 46px;
        padding: 0 !important;
        margin: 0 !important;
        border: none !important;
        border-radius: 0 !important;
        color: #fff !important;
        font-size: 0.85rem !important;
        font-weight: 600 !important;
    }
  
    
    /* 电话按钮 - 手机端背景图标 */
    .section-cta > ul.button li:nth-child(1) a {
        background-image: url('../images/dianhua-100.png'), linear-gradient(135deg, var(--yellow) 0%, var(--accent-gold-dark) 100%) !important;
        background-position: 12px center, 0 0 !important;
        background-size: 2rem auto, auto !important;
        background-repeat: no-repeat, no-repeat !important;
    }
     .section-cta > ul.button li:nth-child(1) a:hover{
        background-image: url('../images/dianhua-100.png'), linear-gradient(135deg, var(--yellow) 0%, var(--accent-gold-dark) 100%) !important;

    }   
    /* 微信按钮 - 手机端背景图标 */
    .section-cta > ul.button li:nth-child(2) button {
                padding-left: 1.2rem !important;

   background:  url('../images/weixin.png') 1.3rem center / 1.8rem auto no-repeat , linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%) !important;
    }
    
    .section-cta > ul.button li a:hover,
    .section-cta > ul.button li button:hover {
        background: rgba(255,255,255,0.12);
    }
 }   
    /* 为main内容底部留出空间 */
    main {
        padding-bottom: 66px;
    }
}

/* ============ 服务优势模块 - 全新设计 ============ */
.service-section {
    padding: 4rem 1rem;
    background: linear-gradient(180deg, #f8fafc 0%, #fff 100%);
}

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

.service-title {
    font-size: 2rem;
    color: var(--primary);
    text-align: center;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.service-subtitle {
    text-align: center;
    color: #64748b;
    font-size: 1rem;
    margin-bottom: 2.5rem;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.service-card {
    background: #fff;
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(37,99,235,0.15);
    border-color: var(--primary);
}

.service-card-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent-gold));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-card:hover .service-card-bg {
    opacity: 1;
}

.service-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border-radius: 12px;
}

.service-icon img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.service-card h3 {
    font-size: 1.1rem;
    color: var(--primary);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.service-card p {
    font-size: 0.9rem;
    color: #64748b;
    line-height: 1.6;
    margin: 0;
}

.service-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    padding: 2rem;
    background: linear-gradient(135deg, var(--primary) 0%, #1e40af 100%);
    border-radius: 16px;
    margin-top: 1rem;
}

.stat-item {
    text-align: center;
    color: #fff;
}

.stat-num {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-gold);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* ============ 累计服务数据 ============ */
.partner-note {
    text-align: center;
    font-size: 1.1rem;
    color: #666;
    margin-top: 1.5rem;
}

.partner-note strong {
    color: var(--primary);
    font-size: 1.3rem;
}

.partner-note strong:last-child {
    color: var(--accent-gold);
}

/* 手机端响应式 */
@media (max-width: 768px) {
    .service-section {
        padding: 2.5rem 1rem;
    }
    
    .service-title {
        font-size: 1.5rem;
    }
    
    .service-subtitle {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }
    
    .service-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .service-card {
        padding: 1.25rem;
    }
    
    .service-icon {
        width: 50px;
        height: 50px;
    }
    
    .service-icon img {
        width: 26px;
        height: 26px;
    }
    
    .service-card h3 {
        font-size: 1rem;
    }
    
    .service-card p {
        font-size: 0.8rem;
    }
    
    .service-stats {
        flex-wrap: wrap;
        gap: 1.5rem;
        padding: 1.5rem;
    }
    
    .stat-item {
        flex: 1 1 45%;
    }
    
    .stat-num {
        font-size: 1.8rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .partner-note {
        font-size: 0.95rem;
    }
    
    .partner-note strong {
        font-size: 1.1rem;
    }
}

/* ============ 数据展示模块 ============ */
.section-stats {
    background: linear-gradient(135deg, #1a365d 0%, #2d3748 50%, #1a202c 100%);
    color: #fff;
    padding: 3.5rem 1rem;
    position: relative;
    overflow: hidden;
}

.section-stats::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 70%, rgba(212,168,67,0.08) 0%, transparent 50%);
    pointer-events: none;
}

.section-stats .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 !important;
    background: transparent !important;
    box-shadow: none !important;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stats-grid li {
    padding: 1rem;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.stats-grid li:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-5px);
}

.stats-grid .stat-num {
    font-size: 4rem;
    font-weight: 700;
    font-family: 'Arial', sans-serif;
    color: #FFD700;
    text-shadow: 0 2px 10px rgba(212,168,67,0.3);
    display: block;
    line-height: 1;
}

.stats-grid .stat-unit {
    font-size: 1.5rem;
    color: rgba(255,255,255,0.95);
    margin-left: 2px;
}

.stats-grid p {
    font-size: 1rem;
    color: rgba(255,255,255,0.8);
    margin-top: 0.5rem;
}

/* 手机端响应式 */
@media (max-width: 768px) {
    .section-stats {
        padding: 2.5rem 1rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .stats-grid .stat-num {
        font-size: 2.8rem;
    }
    
    .stats-grid .stat-unit {
        font-size: 1.2rem;
    }
    
    .stats-grid p {
        font-size: 0.9rem;
    }
}

/* ============ 视频展示区域 ============ */
.section-video {
    padding: 5rem 0;
    background: linear-gradient(180deg, #f8fafc 0%, #fff 100%);
}

.section-video .section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-video .section-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.section-video .section-subtitle {
    font-size: 1.1rem;
    color: var(--primary);
    font-weight: 500;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.video-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
}

.video-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 8 / 12;
    background: #000;
    overflow: hidden;
}

.video-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.video-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 72px;
    height: 72px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    pointer-events: none;
}

.video-play-btn i {
    font-size: 1.8rem;
    color: var(--primary);
    margin-left: 4px;
}

.video-wrapper:hover .video-play-btn {
    transform: translate(-50%, -50%) scale(1.1);
    background: var(--primary);
}

.video-wrapper:hover .video-play-btn i {
    color: #fff;
}

.video-wrapper video[playing] ~ .video-play-btn,
.video-wrapper video.playing ~ .video-play-btn {
    opacity: 0;
}

.video-info {
    padding: 1.5rem;
}

.video-info h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.video-info p {
    font-size: 0.95rem;
    color: #64748b;
}

/* 视频区域响应式 */
@media (max-width: 768px) {
    .section-video {
        padding: 3rem 0;
    }
    
    .section-video .section-title {
        font-size: 1.6rem;
    }
    
    .section-video .section-subtitle {
        font-size: 0.95rem;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .video-wrapper {
        aspect-ratio: 16 / 10;
    }
    
    .video-play-btn {
        width: 56px;
        height: 56px;
    }
    
    .video-play-btn i {
        font-size: 1.4rem;
    }
    
    .video-info {
        padding: 1.25rem;
    }
    
    .video-info h3 {
        font-size: 1.1rem;
    }
    
    .video-info p {
        font-size: 0.875rem;
    }
}