:root {
    --white: #FFFFFF;
    --primary: #00A6EC;
    --primary-dark: #0089C4;
    --secondary: #40C567;
    --secondary-dark: #35A555;
    --text-dark: #333333;
    --text-light: #666666;
    --bg-light: #F7FAFC;
    --bg-white: #FFFFFF;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --radius: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--text-dark);
    line-height: 1.8;
    background: var(--bg-white);
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 1000;
    background: url('../assets/header-bg.png') center no-repeat;
    background-size: cover;
    backdrop-filter: blur(12px);
    box-shadow: 0 2px 20px rgba(0,166,236,0.08);
    transition: all .3s ease;
}
.nav-inner {
    max-width: 1200px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 40px;
}
.logo {
    font-size: 24px; font-weight: 800; color: var(--primary);
    letter-spacing: 0; display: flex; align-items: center; gap: 10px;
    cursor: pointer; text-decoration: none; transition: opacity .25s;
}
.logo:hover { opacity: .78; }
.logo-img {
    width: 172px;
    height: auto;
    display: block;
}
.logo-icon {
    width: 42px; height: 42px; background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 22px;
}
.nav-links { display: flex; gap: 36px; list-style: none; }
.nav-links a {
    text-decoration: none; color: var(--white); font-size: 15px; font-weight: 500;
    position: relative; transition: color .3s;
}
.nav-links a::after {
    content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
    background: var(--primary); transition: width .3s; border-radius: 2px;
}
.nav-links a:hover { color: var(--primary); }
.nav-links a:hover::after { width: 100%; }
.nav-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff !important;
    padding: 10px 26px; border-radius: 50px; font-size: 14px; font-weight: 600;
    transition: transform .3s, box-shadow .3s;
}
.nav-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 25px rgba(0,166,236,0.35); }
.nav-btn::after { display: none; }

/* ===== 英雄区 ===== */
.hero {
    min-height: 92vh; display: flex; align-items: center;
    padding-top: 70px;
    background: linear-gradient(160deg, #EBF6FF 0%, #E8FFF4 45%, #F0FAFF 100%);
    position: relative; overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; top: -200px; right: -200px;
    width: 700px; height: 700px; border-radius: 50%;
    background: radial-gradient(circle, rgba(0,166,236,0.07) 0%, transparent 70%);
}
.hero::after {
    content: ''; position: absolute; bottom: -150px; left: -150px;
    width: 500px; height: 500px; border-radius: 50%;
    background: radial-gradient(circle, rgba(64,197,103,0.06) 0%, transparent 70%);
}
.hero-inner {
    max-width: 1200px; margin: 0 auto; padding: 60px 40px;
    display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
    position: relative; z-index: 1;
}
.hero-tag {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(0,166,236,0.08); color: var(--primary);
    padding: 8px 18px; border-radius: 50px; font-size: 13px; font-weight: 600;
    margin-bottom: 28px; border: 1px solid rgba(0,166,236,0.15);
}
.hero-tag span {
    width: 8px; height: 8px; background: var(--primary); border-radius: 50%; animation: pulse 2s infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }
.hero h1 {
    font-size: 52px; line-height: 1.2; font-weight: 800; margin-bottom: 24px; color: var(--text-dark);
    letter-spacing: 0;
}
.hero h1 .highlight { background: linear-gradient(135deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p { font-size: 16px; color: var(--text-light); margin-bottom: 40px; max-width: 600px; line-height: 1.9; }
.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; }
.btn-primary {
    display: inline-flex; align-items: center; gap: 10px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff;
    padding: 16px 38px; border-radius: 50px; text-decoration: none;
    font-size: 16px; font-weight: 600; transition: all .3s;
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 35px rgba(0,166,236,0.32); }
.btn-outline {
    display: inline-flex; align-items: center; gap: 10px;
    background: #fff; color: var(--primary); padding: 16px 38px; border-radius: 50px;
    text-decoration: none; font-size: 16px; font-weight: 600; border: 2px solid var(--primary); transition: all .3s;
}
.btn-outline:hover { background: var(--primary); color: #fff; }
.hero-visual { position: relative; }
.hero-phone-mockup {
    width: 300px; height: 534px; background: linear-gradient(180deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 44px; padding: 14px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.18), inset 0 0 0 2px rgba(255,255,255,0.05);
    margin-left: auto;
}
.phone-screen {
    position: relative;
    width: 100%; height: 100%; border-radius: 34px; overflow: hidden;
    background: #fff;
    color: #fff; text-align: center;
}
.phone-carousel {
    position: absolute; inset: 0;
    width: 100%; height: 100%;
}
.phone-carousel .carousel-slide img {
    width: 100%; height: 100%; object-fit: cover; display: block;
}
.phone-carousel .phone-carousel-dots {
    bottom: 18px;
}
.phone-carousel .carousel-dot {
    width: 7px; height: 7px;
    background: rgba(255,255,255,.62);
    box-shadow: 0 1px 4px rgba(0,0,0,.18);
}
.phone-carousel .carousel-dot.active {
    width: 22px;
    background: #fff;
}
.phone-screen > .app-icon,
.phone-screen > h3,
.phone-screen > p {
    display: none;
}
.phone-screen .app-icon { font-size: 64px; margin-bottom: 8px; }
.phone-screen h3 { font-size: 22px; font-weight: 700; }
.phone-screen p { font-size: 13px; opacity: 0.85; }
.float-badge {
    position: absolute; background: #fff; border-radius: 16px; padding: 16px 22px;
    box-shadow: var(--shadow); animation: float 4s ease-in-out infinite;
}
.float-badge.badge1 { top: -36px; right: 15px; animation-delay: 0s; }
.float-badge.badge2 { width: 180px; bottom: 80px; left: -20px; animation-delay: 1.5s; text-align: center; }
.float-badge.badge3 { top: 140px; left: -20px; animation-delay: 0.75s; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-12px)} }
.badge-num { font-size: 28px; font-weight: 800; color: var(--primary); }
.badge-label { font-size: 12px; color: var(--text-light); margin-top: 2px; }
.badge-num.green { color: var(--secondary); }
.mini-program-card {
    width: 180px;
    height: 180px;
    padding: 12px;
    text-align: center;
}
.mini-program-card img {
    width: 120px;
    height: 120px;
    display: block;
    margin: 0 auto 8px;
}

/* ===== 业务板块 ===== */
.section { padding: 100px 0; }
.section-header { text-align: center; margin-bottom: 65px; }
.section-tag {
    display: inline-block; background: rgba(0,166,236,0.08); color: var(--primary);
    padding: 6px 20px; border-radius: 50px; font-size: 13px; font-weight: 600;
    margin-bottom: 16px; letter-spacing: 2px; text-transform: uppercase;
}
.section-header h2 { font-size: 40px; font-weight: 800; margin-bottom: 18px; letter-spacing: 0; }
.section-header p { font-size: 17px; color: var(--text-light); max-width: 600px; margin: 0 auto; }

/* 核心业务 - 直通车 */
.bus-feature {
    background: linear-gradient(165deg, #F0F9FF 0%, #EEFFF5 100%); padding: 100px 0;
}
.feature-grid {
    max-width: 1100px; margin: 0 auto; display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; padding: 0 26px;
}
.feature-card-main {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, var(--primary), #0090D0);
    border-radius: var(--radius); padding: 48px; color: #fff;
    display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
    box-shadow: 0 20px 60px rgba(0,166,236,0.25);
}
.feature-media { min-width: 0; }
.feature-carousel {
    position: relative; height: 420px; min-height: 320px;
    border-radius: 12px; overflow: hidden;
    background: rgba(255,255,255,.12);
    box-shadow: inset 0 0 0 1px rgba(255,255,255,.18), 0 18px 45px rgba(0,64,110,.18);
}
.carousel-track { position: relative; width: 100%; height: 100%; }
.carousel-slide {
    position: absolute; inset: 0; opacity: 0;
    transition: opacity .55s ease;
}
.carousel-slide.active { opacity: 1; }
.carousel-slide img {
    width: 100%; height: 100%; object-fit: cover; display: block;
}
.carousel-btn {
    position: absolute; top: 50%; transform: translateY(-50%);
    width: 40px; height: 40px; border: 0; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,.88); color: var(--primary-dark);
    font-size: 26px; line-height: 1; cursor: pointer;
    box-shadow: 0 8px 24px rgba(0,0,0,.16);
    transition: background .25s, transform .25s;
    z-index: 2;
}
.carousel-btn:hover { background: #fff; transform: translateY(-50%) scale(1.06); }
.carousel-btn.prev { left: 16px; }
.carousel-btn.next { right: 16px; }
.carousel-dots {
    position: absolute; left: 0; right: 0; bottom: 16px;
    display: flex; justify-content: center; gap: 9px; z-index: 2;
}
.carousel-dot {
    width: 9px; height: 9px; border: 0; border-radius: 50%;
    background: rgba(255,255,255,.55); cursor: pointer;
    transition: width .25s, background .25s;
}
.carousel-dot.active { width: 24px; border-radius: 999px; background: #fff; }
.feature-card-main h3 { font-size: 34px; font-weight: 800; margin-bottom: 16px; }
.feature-card-main p { font-size: 16px; opacity: .88; line-height: 1.85; margin-bottom: 24px; }
.feature-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.ftag { background: rgba(255,255,255,.2); padding: 6px 16px; border-radius: 50px; font-size: 13px; backdrop-filter: blur(4px); }
.feature-list { list-style: none; }
.feature-list li {
    display: flex; align-items: center; gap: 12px; margin-bottom: 14px;
    font-size: 15px; opacity: .92;
}
.feature-list li::before { content: '✓'; font-weight: bold; }

.feature-card {
    display: flex; flex-direction: column; align-items: center; text-align: center;
    background: #fff; border-radius: var(--radius); padding: 36px;
    box-shadow: var(--shadow); border: 1px solid rgba(0,0,0,0.04);
    transition: all .35s ease; cursor: default; position: relative; overflow: hidden;
}
.feature-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary)); opacity: 0;
    transition: opacity .35s;
}
.feature-card:hover { transform: translateY(-8px); box-shadow: 0 16px 45px rgba(0,0,0,0.12); }
.feature-card:hover::before { opacity: 1; }
.fc-icon {
    width: 62px; height: 62px; border-radius: 16px; display: flex; align-items: center; justify-content: center;
    font-size: 30px; margin-bottom: 20px;
}
.feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: var(--text-light); line-height: 1.75; }

/* 文化宣传 */
.culture-section { background: var(--bg-light); }
.culture-grid {
    max-width: 1140px; margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; padding: 0 40px;
}
.culture-card {
    background: #fff; border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow); transition: all .35s;
}
.culture-card:hover { transform: translateY(-6px); box-shadow: 0 16px 45px rgba(0,0,0,0.11); }
.cc-img {
    width: 100%; height: 220px; display: block; object-fit: cover;
}
.culture-card:nth-child(1) .cc-img { background: linear-gradient(135deg, #E0F2FE, #BAE6FD); }
.culture-card:nth-child(2) .cc-img { background: linear-gradient(135deg, #DCFCE7, #BBF7D0); }
.culture-card:nth-child(3) .cc-img { background: linear-gradient(135deg, #FEF3C7, #FDE68A); }
.cc-body { padding: 28px; }
.cc-body h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.cc-body p { font-size: 14px; color: var(--text-light); line-height: 1.75; }

/* APP下载 */
.download-section {
    background: linear-gradient(170deg, #111827 0%, #1e293b 50%, #0f172a 100%);
    color: #fff; position: relative; overflow: hidden;
}
.download-section::before {
    content: '';
    position: absolute; top: -300px; right: -200px; width: 650px; height: 650px;
    background: radial-gradient(circle, rgba(0,166,236,0.12) 0%, transparent 70%);
}
.dl-inner { max-width: 900px; margin: 0 auto; text-align: center; padding: 100px 40px; position: relative; z-index: 1; }
.dl-inner h2 { font-size: 44px; font-weight: 800; margin-bottom: 18px; letter-spacing: 0; }
.dl-inner p { font-size: 17px; opacity: .7; margin-bottom: 55px; max-width: 550px; margin-left: auto; margin-right: auto; }
.qr-grid { display: flex; justify-content: center; gap: 34px; flex-wrap: wrap; }
.qr-item { text-align: center; width: 210px; }
.qr-box {
    width: 190px; height: 190px; padding: 16px; background: #fff; border-radius: 22px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 18px; box-shadow: 0 10px 40px rgba(0,0,0,0.25);
    font-size: 68px; color: var(--text-light);
}
.qr-box img { width: 100%; height: 100%; display: block; object-fit: cover; }
.qr-item strong { display: block; font-size: 17px; font-weight: 700; margin-bottom: 4px; }
.qr-item span { font-size: 13px; opacity: .55; }

/* 联系我们 */
.contact-inner { max-width: 1080px; margin: 0 auto; display: grid; grid-template-columns: 1.2fr .8fr; gap: 50px; padding: 0 40px; }
.contact-info { background: #fff; border-radius: var(--radius); padding: 46px; box-shadow: var(--shadow); }
.ci-item { display: flex; gap: 18px; margin-bottom: 28px; align-items: flex-start; }
.ci-icon {
    width: 50px; height: 50px; min-width: 50px; border-radius: 14px;
    display: flex; align-items: center; justify-content: center; font-size: 24px;
    background: rgba(0,166,236,0.08); color: var(--primary);
}
.ci-content h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.ci-content p { font-size: 14px; color: var(--text-light); }
.map-container {
    background: #e8eaed;
    border-radius: var(--radius); min-height: 380px; width: 100%;
    box-shadow: var(--shadow);
    overflow: hidden;
}

/* 页脚 */
.footer {
    background: #0f172a; color: #94a3b8; padding: 50px 0 30px;
    text-align: center;
}
.footer-logo {
    font-size: 18px; font-weight: 800; color: #fff; margin-bottom: 16px;
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
}
/* filter: brightness(0) invert(1); */
.footer-logo img { width: 130px; height: auto; display: block; opacity: .96; }
.footer p { font-size: 14px; margin-bottom: 8px; opacity: .7; }
.footer a { color: inherit; text-decoration: none; }
.footer a:hover { color: #fff; }
.footer-divider { width: 60px; height: 2px; background: linear-gradient(90deg, var(--primary), var(--secondary)); margin: 24px auto; border-radius: 2px; }
.icp-info { font-size: 12px; opacity: .45; margin-top: 20px; }

/* 响应式 */
@media (max-width: 900px) {
    .hero-inner { grid-template-columns: 1fr; text-align: center; padding: 40px 24px; gap: 40px; }
    .hero h1 { font-size: 36px; }
    .hero p { margin: 0 auto 36px; }
    .hero-actions { justify-content: center; flex-direction: column; align-items: center; }
    .hero-actions a { width: 100%; max-width: 280px; justify-content: center; padding: 14px 20px; }
    .logo-img { width: 150px; }
    .hero-phone-mockup { margin: 0 auto; width: 260px; height: 510px; }
    .float-badge { display: none; }
    .feature-card-main { grid-template-columns: 1fr; text-align: center; }
    .feature-carousel { height: 320px; }
    .feature-tags { justify-content: center; }
    .feature-list { display: flex; flex-wrap: wrap; justify-content: center; column-gap: 24px; row-gap: 8px; }
    .culture-grid { grid-template-columns: 1fr; }
    .contact-inner { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .section-header h2 { font-size: 30px; }
    .dl-inner h2 { font-size: 32px; }
}