* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft Yahei", sans-serif;
        }
        /* 头部导航 */
        .header-wrap {
            width: 100%;
            background:#ffffff;
            border-bottom:1px solid #f3f3f3;
        }
        .header-inner {
            max-width:1200px;
            margin:0 auto;
            display:flex;
            justify-content:space-between;
            align-items:center;
            padding:12px 20px;
        }
        .logo {
            display:flex;
            align-items:center;
            gap:6px;
            font-size:20px;
            font-weight:bold;
            color:#333;
        }
        .logo-icon {
            color:#27b346;
        }
        .nav-list {
            display:flex;
            gap:32px;
        }
        .nav-list a {
            text-decoration:none;
            color:#444;
            font-size:14px;
        }
        .nav-list a.active {
            color:#27b346;
        }
        .btn-login {
            background:#27b346;
            color:#fff;
            border:none;
            padding:8px 20px;
            border-radius:24px;
            cursor:pointer;
            font-size:14px;
        }

        /* Banner区域 背景可替换修改background-image */
        .banner-wrap {
            width:100%;
            /* 修改这里替换banner背景图 */
            background-image: url("../images/bg.png");
            background-color:#f8f8f8;
            background-size:cover;
            background-position:center;
            padding:150px 20px;
        }
        .banner-content {
            max-width:1100px;
            margin:0 auto;
            text-align:center;
        }
        .banner-main-title {
            position:relative;
        }
        .banner-green-big {
            font-size:80px;
            color:#27b346;
            font-weight:bold;
            display:inline-block;
        }
        .banner-right-tag {
            display:inline-block;
            background:#27b346;
            color:white;
            font-size:14px;
            padding:4px 10px;
            vertical-align:top;
            margin-top:12px;
        }
        .banner-black-title {
            font-size:48px;
            color:#333;
            font-weight:bold;
        }
        .banner-desc {
            margin-top:8px;
            font-size:15px;
            color:#555;
        }

        /* 中间活动模块 */
        .activity-wrap {
            width:100%;
            padding:60px 20px;
            background:#ffffff;
        }
        .activity-inner {
            max-width:900px;
            margin:0 auto;
        }
        .activity-top-text {
            text-align:center;
            margin-bottom:36px;
        }
        .activity-top-text h2 {
            font-size:20px;
            color:#222;
            margin-bottom:10px;
        }
        .activity-top-text p {
            font-size:14px;
            color:#666;
        }
        .card-row {
            display:flex;
            justify-content:center;
            gap:24px;
            flex-wrap:wrap;
        }
        .item-card {
            width:220px;
            border:1px solid #ddd;
            border-radius:8px;
            padding:24px 12px;
            text-align:center;
        }
        .card-word-num {
            font-size:28px;
            color:#27b346;
            font-weight:bold;
        }
        .card-share-text {
            font-size:14px;
            color:#444;
            margin:6px 0;
        }
        .card-tip {
            font-size:12px;
            color:#888;
        }

        /* ===新增独立二维码板块=== */
        .qr-wrap{
            width:100%;
            padding:50px 20px;
            background:#f7f7f7;
        }
        .qr-inner{
            max-width:900px;
            margin:0 auto;
            text-align:center;
        }
        .qr-title{
            font-size:18px;
            color:#333;
            margin-bottom:20px;
        }
        .qr-img-box{
            display:inline-block;
        }
        .qr-img-box img{
            width:220px;
            height:220px;
        }
        .qr-desc{
            margin-top:12px;
            font-size:14px;
            color:#666;
        }

        /* 页脚 */
        .footer-wrap {
            width:100%;
            background:#333c38;
            color:#cccccc;
            padding:40px 20px 24px;
        }
        .footer-inner {
            max-width:1100px;
            margin:0 auto;
            display:flex;
            justify-content:space-between;
            flex-wrap:wrap;
        }
        .footer-left .footer-logo {
            font-size:20px;
            color:#fff;
            font-weight:bold;
            margin-bottom:16px;
        }
        .footer-left p {
            font-size:13px;
            line-height:1.8;
        }
        .footer-qrcode-box {
            text-align:center;
        }
        .qrcode-block {
            width:120px;
            height:120px;
            border:1px solid #fff;
        }
        .copyright-text {
            width:100%;
            text-align:center;
            margin-top:32px;
            font-size:12px;
            color:#aaa;
        }

        /* 移动端适配 */
        @media(max-width:768px){
            .nav-list {
                gap:12px;
            }
            .banner-green-big {
                font-size:48px;
            }
            .banner-black-title {
                font-size:30px;
            }
            .card-row {
                flex-direction:column;
                align-items:center;
            }
            .item-card {
                width:260px;
            }
            .footer-inner {
                flex-direction:column;
                gap:30px;
            }
        }