/* =========================================================
   华洋网络 solution 系列落地页 重制版样式 solution2.css
   适用：/wxkf/ 系列页面（2026-10 重制，真实文字 + 卡片版式）
   依赖：
   - 页面根节点通过 style="--ac:#主题色" 指定主题色
   - 彩色区块通过 style="--bg:#背景色" 指定背景
   - responsive.js 负责注入 .m-nav-btn 汉堡按钮与菜单开合
   ========================================================= */

.solution-m{--ac:#3aa556;position:relative;z-index:10;}

/* ---------- 头部 + Hero ---------- */
.headban{
    position:relative;display:flex;flex-direction:column;
    height:auto;min-height:560px;
    background:url(/css/img/solute-ban.jpg) no-repeat center center;
    background-size:cover;overflow:hidden;
}
.headban::before{
    content:"";position:absolute;left:0;top:0;right:0;bottom:0;z-index:1;
    background:linear-gradient(180deg,rgba(13,17,22,.78) 0%,rgba(13,17,22,.42) 52%,rgba(13,17,22,.8) 100%);
}
.headban .hb-bar{
    position:relative;z-index:6;width:100%;max-width:1200px;margin:0 auto;
    display:flex;align-items:center;justify-content:space-between;
    padding:22px 20px;box-sizing:border-box;
}
.headban .hb-logo{float:none;display:inline-block;padding:0;}
.headban .hb-logo img{height:42px;width:auto;vertical-align:middle;}
.headban .hb-nav{float:none;display:block;height:auto;overflow:visible;}
.headban .hb-nav ul{list-style:none;margin:0;padding:0;display:flex;}
.headban .hb-nav li{float:none;display:block;margin:0 0 0 34px;}
.headban .hb-nav li a{
    display:block;padding:8px 2px 10px;font-size:15px;font-weight:bold;
    color:rgba(255,255,255,.82);border-top:3px solid transparent;
    transition:color .25s,border-color .25s;
}
.headban .hb-nav li a:hover{color:#fff;}
.headban .hb-nav li.on .nav1,
.headban .hb-nav li .nav1:hover{color:#4fd07f;border-color:#4fd07f;padding:8px 2px 10px;}
.headban .hb-nav li.on .nav2,
.headban .hb-nav li .nav2:hover{color:#918dff;border-color:#918dff;padding:8px 2px 10px;}
.headban .hb-nav li.on .nav3,
.headban .hb-nav li .nav3:hover{color:#ffc14d;border-color:#ffc14d;padding:8px 2px 10px;}
.headban .hb-nav li.on .nav4,
.headban .hb-nav li .nav4:hover{color:#ff7a52;border-color:#ff7a52;padding:8px 2px 10px;}
.headban .m-nav-btn{display:none;}

.headban .hb-hero{
    position:relative;z-index:6;flex:1;width:100%;max-width:1200px;margin:0 auto;
    display:flex;flex-direction:column;justify-content:center;
    padding:20px 20px 110px;box-sizing:border-box;
}
.headban .hb-en{font-size:20px;letter-spacing:1px;color:rgba(255,255,255,.5);font-weight:300;}
.headban .hb-hero h1{margin:10px 0 18px;font-size:46px;line-height:1.3;color:var(--ac);font-weight:700;}
.headban .hb-hero p{margin:0;max-width:680px;font-size:15px;line-height:2.1;color:rgba(255,255,255,.85);}

/* ---------- 区块通用 ---------- */
.sol-sec{padding:64px 20px;}
.sol-wrap{max-width:1200px;margin:0 auto;}
.sol-en{display:block;font-size:15px;letter-spacing:.5px;opacity:.55;margin-bottom:6px;}

/* ---------- 优势卡片 ---------- */
.sol-adv{background:#fff;}
.sol-adv .sol-title{text-align:center;font-size:28px;color:#333;font-weight:700;margin:0;}
.sol-adv .sol-title::after{
    content:"";display:block;width:40px;height:3px;border-radius:2px;
    background:var(--ac);margin:16px auto 0;
}
.sol-cards{
    list-style:none;max-width:1200px;margin:42px auto 0;padding:0;
    display:grid;grid-template-columns:repeat(4,1fr);gap:22px;
}
.sol-cards li{
    background:#f7faf8;border-radius:12px;padding:34px 20px 28px;text-align:center;
    transition:transform .3s,box-shadow .3s;
}
.sol-cards li:hover{transform:translateY(-5px);box-shadow:0 12px 28px rgba(0,0,0,.08);}
.sol-cards img{width:66px;height:66px;object-fit:contain;}
.sol-cards h4{margin:16px 0 10px;font-size:17px;color:#333;font-weight:700;}
.sol-cards p{margin:0;font-size:13px;line-height:1.9;color:#8b948f;}

/* ---------- 彩色主题区 ---------- */
/* 叠层加深：亮金 #f2b400 这类浅品牌色上白字对比度不足，统一压暗到可读范围 */
.sol-theme{background:linear-gradient(rgba(14,13,8,.55),rgba(14,13,8,.55)),var(--bg,#3aa556);color:#fff;}
.sol-theme .sol-en{opacity:.8;font-weight:300;}
.sol-theme h2{font-size:30px;font-weight:700;margin:0 0 16px;color:#fff;}
.sol-theme .sol-desc{max-width:780px;margin:0 0 34px;font-size:14px;line-height:2.05;color:#fff;opacity:1;}

.sol-feats{list-style:none;margin:0;padding:0;max-width:1040px;
    display:grid;grid-template-columns:1fr 1fr;gap:26px 48px;}
.sol-feats li{position:relative;padding-left:18px;}
.sol-feats li::before{
    content:"";position:absolute;left:0;top:9px;width:8px;height:8px;
    border-radius:50%;background:#fff;
}
.sol-feats h4{margin:0 0 6px;font-size:16px;font-weight:700;color:#fff;}
.sol-feats p{margin:0;font-size:13px;line-height:1.9;color:rgba(255,255,255,.95);opacity:1;}

/* 功能点胶囊（赛事平台） */
.sol-chips{list-style:none;margin:4px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:12px;max-width:960px;}
.sol-chips li{
    border:1px solid rgba(255,255,255,.75);border-radius:999px;padding:9px 22px;
    font-size:14px;background:rgba(255,255,255,.14);color:#fff;font-weight:500;
}

/* 阶段数字（设计标准） */
.sol-stats{display:flex;flex-wrap:wrap;gap:16px 56px;margin:30px 0 0;}
.sol-stats span{font-size:14px;color:rgba(255,255,255,.95);opacity:1;}
.sol-stats b{font-size:44px;font-weight:700;margin-right:8px;color:#fff;}

/* A/B/C 标准卡片（设计标准） */
.sol-stds{list-style:none;margin:36px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:22px;max-width:1080px;}
.sol-stds li{background:rgba(255,255,255,.16);border-radius:12px;padding:26px 22px;}
.sol-stds .sol-letter{display:block;font-size:34px;font-weight:700;color:var(--lt,#2ee6a8);line-height:1;margin-bottom:14px;}
.sol-stds h4{margin:0 0 8px;font-size:16px;font-weight:700;color:#fff;}
.sol-stds p{margin:0;font-size:13px;line-height:1.9;color:rgba(255,255,255,.95);opacity:1;}

/* ---------- 浅色内容区 ---------- */
.sol-light{background:#f5f7f6;color:#4a5550;}
.sol-light .sol-en{color:#9aa5a0;opacity:1;}
.sol-light h2{font-size:28px;color:#333;margin:0 0 12px;font-weight:700;}
.sol-light .sol-lead{font-size:16px;color:var(--ac);margin:0 0 14px;font-weight:600;}
.sol-light .sol-para{max-width:860px;margin:0;font-size:14px;line-height:2.05;color:#6b756f;}
.sol-light .sol-tag{margin:22px 0 0;font-size:13px;color:#9aa5a0;}

/* 客户案例（赛事平台） */
.sol-cases{list-style:none;margin:30px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;max-width:1080px;}
.sol-cases li{background:#fff;border-radius:10px;padding:22px 18px;box-shadow:0 4px 14px rgba(0,0,0,.05);}
.sol-cases h4{margin:0 0 6px;font-size:15px;color:#333;font-weight:700;}
.sol-cases p{margin:0;font-size:12px;color:#98a29c;}
.sol-cases + .sol-stats{margin-top:34px;}
.sol-light .sol-stats span{opacity:1;color:#55605a;}
.sol-light .sol-stats b{color:var(--ac);}

/* 大数字服务区（设计标准第二屏） */
.sol-big{display:flex;align-items:baseline;gap:26px;margin:18px 0 10px;flex-wrap:wrap;}
.sol-big b{font-size:56px;font-weight:700;color:var(--ac);line-height:1;}
.sol-big i{font-style:normal;font-size:34px;font-weight:700;color:var(--ac);opacity:.85;}
.sol-big em{font-style:normal;font-size:15px;color:#7c8680;}

/* ---------- 统一页脚：solution 页自带深色底，不依赖 body 背景 ---------- */
/* 旧版固定页脚给 body 预留的 313px 空位，改为文档流页脚后必须清零 */
body{padding-bottom:0 !important;}
.idxfooter{position:relative !important;left:auto;bottom:auto;background:#181818;
    padding:45px 0 40px;min-height:0;z-index:1;}
/* solution.css 的全局 .w1200{height:100%} 会把页脚内层撑到整个视口高，必须还原为内容高 */
.idxfooter .w1200{height:auto !important;}
.idxfooter .w1200{max-width:1200px;margin:0 auto;}
.idxfooter .idx-footerleft h1{color:#96cdb4;}
.idxfooter .idx-footerleft h2,
.idxfooter .idx-footerleft p{color:#a3a3a3;}
.idxfooter .idx-footerleft .lamp{opacity:1;top:-25px;}
.idxfooter .idx-footerleft .lamp img{display:block;}
.idxfooter .idx-footerright a{opacity:.9;}
.idxfooter .idx-footerright a:hover{opacity:1;}

/* =========================================================
   ≤ 991px 平板竖屏 / 大屏手机
   ========================================================= */
@media (max-width:991px){
    .headban{min-height:430px;}
    .headban .hb-bar{padding:14px 16px;}
    .headban .hb-logo img{height:38px;}

    /* 汉堡按钮（responsive.js 注入到 .headban 根节点） */
    .headban .m-nav-btn{
        display:block;position:absolute;right:14px;top:15px;
        width:38px;height:36px;padding:8px 9px;box-sizing:border-box;
        cursor:pointer;z-index:1002;border-radius:8px;background:rgba(255,255,255,.14);
    }
    .headban .m-nav-btn span{display:block;height:2px;border-radius:1px;background:#fff;margin:5px 0;transition:all .3s;}
    .headban.nav-open .m-nav-btn span:nth-child(1){transform:translateY(7px) rotate(45deg);}
    .headban.nav-open .m-nav-btn span:nth-child(2){opacity:0;}
    .headban.nav-open .m-nav-btn span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

    /* 下拉抽屉菜单 */
    .headban .hb-nav{
        display:none;position:absolute;top:64px;right:12px;z-index:1001;
        width:216px;background:rgba(16,20,25,.95);border-radius:10px;
        padding:6px 0;box-shadow:0 12px 30px rgba(0,0,0,.4);
    }
    .headban.nav-open .hb-nav{display:block;}
    .headban .hb-nav ul{display:block;}
    .headban .hb-nav li{margin:0;}
    .headban .hb-nav li a{
        padding:0 18px;line-height:47px;height:auto;border-top:none;
        border-left:3px solid transparent;color:rgba(255,255,255,.9) !important;font-size:14px;
    }
    .headban .hb-nav li.on .nav1{color:#4fd07f !important;border-left-color:#4fd07f;padding:0 18px;}
    .headban .hb-nav li.on .nav2{color:#918dff !important;border-left-color:#918dff;padding:0 18px;}
    .headban .hb-nav li.on .nav3{color:#ffc14d !important;border-left-color:#ffc14d;padding:0 18px;}
    .headban .hb-nav li.on .nav4{color:#ff7a52 !important;border-left-color:#ff7a52;padding:0 18px;}

    .headban .hb-hero{padding:10px 18px 80px;}
    .headban .hb-en{font-size:14px;}
    .headban .hb-hero h1{font-size:30px;margin:8px 0 12px;}
    .headban .hb-hero p{font-size:13.5px;line-height:1.95;}

    .sol-sec{padding:46px 18px;}
    .sol-adv .sol-title{font-size:22px;}
    .sol-cards{grid-template-columns:1fr 1fr;gap:14px;margin-top:30px;}
    .sol-theme h2{font-size:23px;}
    .sol-feats{grid-template-columns:1fr;gap:20px;}
    .sol-stds{grid-template-columns:1fr;}
    .sol-cases{grid-template-columns:1fr 1fr;}
    .sol-big b{font-size:42px;}
    .sol-big i{font-size:26px;}
    .sol-stats b{font-size:34px;}
}

/* =========================================================
   ≤ 480px 小屏手机
   ========================================================= */
@media (max-width:480px){
    .sol-cards{grid-template-columns:1fr;}
    .sol-cases{grid-template-columns:1fr;}
    .headban .hb-hero h1{font-size:26px;}
    .sol-chips li{padding:8px 16px;font-size:13px;}
}