/* ============ 数港科技 · 全站样式 ============ */
:root{
  --primary:#0b63e5;
  --primary-dark:#084bb0;
  --primary-light:#e8f1fe;
  --accent:#ff7a1a;
  --ink:#17233d;
  --ink-2:#4e5b76;
  --ink-3:#8792a8;
  --line:#e6ebf3;
  --bg:#f5f7fb;
  --card:#ffffff;
  --ok:#12b76a;
  --danger:#e5484d;
  --radius:12px;
  --shadow:0 4px 20px rgba(23,35,61,.07);
  --shadow-lg:0 12px 40px rgba(23,35,61,.12);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC","Segoe UI",system-ui,sans-serif;color:var(--ink);background:var(--bg);font-size:15px;line-height:1.7}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul,ol{list-style:none}
.w{max-width:1200px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 26px;border-radius:8px;font-size:15px;cursor:pointer;border:none;transition:.2s;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px)}
.btn-outline{border:1px solid var(--primary);color:var(--primary);background:#fff}
.btn-outline:hover{background:var(--primary-light)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{filter:brightness(1.08)}
.btn-sm{padding:6px 16px;font-size:13px;border-radius:6px}
.tag{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12px;background:var(--primary-light);color:var(--primary)}
.tag-hot{background:#fff1e8;color:var(--accent)}

/* ---- 顶部 ---- */
.topbar{background:#fff;color:var(--ink-2);font-size:13px;border-bottom:1px solid var(--line)}
.topbar .w{display:flex;justify-content:space-between;align-items:center;height:36px}
.topbar a{color:var(--ink-2);margin-left:18px}
.topbar a:hover{color:var(--primary)}
.topbar .hot{color:var(--accent)}
.header{background:#fff;box-shadow:0 1px 0 var(--line);position:sticky;top:0;z-index:110}
.header .w{display:flex;align-items:center;height:68px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-img{height:38px;width:auto;display:block}
.logo .mark{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--primary),#3f8dff);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:19px;letter-spacing:-1px}
.logo .name{font-size:21px;font-weight:700;color:var(--ink)}
.logo .name small{display:block;font-size:10px;color:var(--ink-3);font-weight:400;letter-spacing:2px}
.nav{flex:1;display:flex;justify-content:flex-end;min-width:0}
.nav>ul{display:flex;align-items:center}
.nav>ul>li{position:relative;flex-shrink:0;white-space:nowrap}
.nav>ul>li>a{display:flex;align-items:center;padding:0 11px;height:68px;font-size:14px;color:var(--ink);position:relative;white-space:nowrap}
.nav>ul>li>a:hover,.nav>ul>li.cur>a{color:var(--primary)}
.nav>ul>li.cur>a::after{content:"";position:absolute;left:11px;right:11px;bottom:0;height:3px;border-radius:3px 3px 0 0;background:var(--primary)}
.nav .sub{position:absolute;top:68px;left:50%;transform:translateX(-50%) translateY(8px);background:#fff;border-radius:10px;box-shadow:var(--shadow-lg);padding:8px;min-width:170px;opacity:0;visibility:hidden;transition:.18s;z-index:10}
.nav>ul>li:hover .sub,.nav>ul>li.show .sub{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.nav .sub a{display:block;padding:9px 16px;border-radius:7px;font-size:14px;color:var(--ink-2);white-space:nowrap}
.nav .sub a:hover{background:var(--primary-light);color:var(--primary)}
.nav-cta{flex-shrink:0}
.nav-toggle{display:none;flex-direction:row;align-items:center;justify-content:center;gap:7px;width:auto;height:40px;padding:0 13px;border:1px solid var(--line);border-radius:9px;background:#fff;cursor:pointer}
.nav-toggle-icon{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:20px;height:20px;position:relative}
.nav-toggle-icon span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}
.nav-toggle-label{font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap}
.nav-toggle.open .nav-toggle-icon span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open .nav-toggle-icon span:nth-child(2){opacity:0}
.nav-toggle.open .nav-toggle-icon span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---- 移动端全屏分组菜单 ---- */
.mobile-nav{display:none;position:fixed;inset:0;z-index:1000;background:#f6f8fb;flex-direction:column}
.mobile-nav.open{display:flex}
.mobile-nav-head{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 18px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 8px rgba(0,0,0,.04)}
.mobile-nav-head span{font-size:17px;font-weight:700;color:var(--ink)}
.mobile-nav-brand{font-size:18px;font-weight:800;color:var(--primary);text-decoration:none;letter-spacing:.5px;line-height:1}
.mobile-nav-brand:active{opacity:.7}
.mobile-nav-close{width:36px;height:36px;border:none;border-radius:50%;background:#f2f3f5;color:var(--ink-2);font-size:20px;line-height:36px;text-align:center;cursor:pointer}
.mobile-nav-close:active{background:#e8eaed}
.mobile-nav-body{flex:1;overflow:auto;padding:0}
.mobile-nav-home{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:center;gap:6px;height:48px;margin:0;background:var(--primary);color:#fff;font-size:15px;font-weight:700;letter-spacing:1px;text-decoration:none;box-shadow:0 4px 12px rgba(13,43,102,.22)}
.mobile-nav-home:active{filter:brightness(.96)}
.mobile-nav-groups{padding:14px}
.mobile-nav-group{background:#fff;border-radius:14px;box-shadow:0 2px 10px rgba(13,43,102,.06);margin-bottom:14px;overflow:hidden}
.mobile-nav-cat{display:flex;align-items:center;justify-content:space-between;height:50px;padding:0 16px;font-size:16px;font-weight:700;color:var(--ink);border-bottom:1px solid #f0f2f5}
.mobile-nav-cat::after{content:">";font-size:14px;color:var(--ink-3)}
.mobile-nav-cat:active{background:#f6f8fb}
.mobile-nav-items{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:#f0f2f5}
.mobile-nav-item{display:flex;align-items:center;min-height:46px;padding:10px 10px;background:#fff;font-size:13px;color:var(--ink-2);line-height:1.35;word-break:break-word}
.mobile-nav-item:active{background:#f2f7ff;color:var(--primary)}
.mobile-nav-group:only-child .mobile-nav-items,.mobile-nav-group:last-child{margin-bottom:0}
body.mobile-nav-open{overflow:hidden}

/* ---- 页面横幅 ---- */
.page-hero{background:linear-gradient(120deg,#0d2b66 0%,#0b63e5 60%,#2f86ff 100%);color:#fff;padding:64px 0 56px;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;background:rgba(255,255,255,.06)}
.page-hero::after{content:"";position:absolute;right:120px;bottom:-180px;width:320px;height:320px;border-radius:50%;background:rgba(255,255,255,.05)}
.page-hero h1{font-size:34px;margin-bottom:12px;font-weight:700}
.page-hero p{color:rgba(255,255,255,.85);max-width:720px;font-size:16px}
.page-hero .crumb{font-size:13px;color:rgba(255,255,255,.65);margin-bottom:18px}
.page-hero .crumb a:hover{color:#fff}

/* ---- 通用板块 ---- */
.section{padding:64px 0}
.section.alt{background:#fff}
.sec-head{text-align:center;margin-bottom:42px}
.sec-head h2{font-size:28px;font-weight:700}
.sec-head .en{color:var(--ink-3);font-size:13px;letter-spacing:3px;text-transform:uppercase;margin-top:6px}
.sec-head .desc{color:var(--ink-2);margin-top:10px;font-size:15px}
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g5{grid-template-columns:repeat(5,1fr)}
.g6{grid-template-columns:repeat(6,1fr)}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;transition:.25s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card .ic{width:52px;height:52px;border-radius:12px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:16px}
.card h3{font-size:17px;margin-bottom:8px}
.card p{color:var(--ink-2);font-size:14px}
.cert-gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:24px}
.cert-gallery .cert{display:block;border:1px solid #e6ebf3;border-radius:10px;overflow:hidden;background:#fff;transition:.2s}
.cert-gallery .cert:hover{box-shadow:0 6px 18px rgba(13,43,102,.12);transform:translateY(-2px)}
.cert-gallery img{width:100%;height:210px;object-fit:contain;display:block;padding:8px}

/* ---- 表格 ---- */
.tbl-wrap{overflow-x:auto;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow)}
table.tbl{width:100%;border-collapse:collapse;min-width:720px}
.tbl th{background:var(--primary);color:#fff;padding:14px 16px;font-size:14px;font-weight:600;text-align:center;white-space:nowrap}
.tbl td{padding:13px 16px;text-align:center;font-size:14px;color:var(--ink-2);border-bottom:1px solid var(--line)}
.tbl tr:last-child td{border-bottom:none}
.tbl tbody tr:hover{background:var(--primary-light)}
.tbl .price{color:var(--accent);font-weight:700;font-size:16px}
.tbl .room{font-weight:600;color:var(--ink)}

/* ---- 价格卡 ---- */
.price-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.price-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.price-card .head{background:linear-gradient(135deg,#f0f7ff,#e8f1fe);color:var(--ink);padding:22px 24px;border-bottom:1px solid var(--line)}
.price-card .head h3{font-size:18px}
.price-card .head p{font-size:12px;color:var(--ink-3);margin-top:4px}
.price-card .body{padding:22px 24px;flex:1}
.price-card .spec{font-size:14px;color:var(--ink-2)}
.price-card .spec li{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px dashed var(--line)}
.price-card .spec li b{color:var(--ink);font-weight:600}
.price-card .price-line{padding:16px 24px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.price-card .p{color:var(--accent);font-size:24px;font-weight:700}
.price-card .p small{font-size:13px;color:var(--ink-3);font-weight:400}
.price-card .del{color:var(--ink-3);text-decoration:line-through;font-size:13px}

/* ---- 步骤 ---- */
.steps{display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap}
.steps .st{flex:1;min-width:120px;text-align:center;position:relative;padding:18px 8px}
.steps .st .n{width:44px;height:44px;margin:0 auto 10px;border-radius:50%;background:var(--primary-light);color:var(--primary);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:18px}
.steps .st p{font-size:14px;color:var(--ink-2)}
.steps .st:not(:last-child)::after{content:"→";position:absolute;right:-10px;top:30px;color:var(--ink-3)}

/* ---- 页脚 ---- */
.footer{background:linear-gradient(135deg,#0a1a36,#132548);color:rgba(255,255,255,.75);margin-top:60px;position:relative;overflow:hidden}
.footer::before{content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.05);pointer-events:none}
.footer::after{content:"";position:absolute;left:-60px;bottom:-60px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.04);pointer-events:none}
.footer .top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding:52px 0 40px;position:relative;z-index:1}
.footer h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer li{margin-bottom:10px;font-size:14px}
.footer a:hover{color:#fff}
.footer .brand .ft-logo{height:42px;width:auto;display:block;margin-bottom:14px;filter:brightness(0) invert(1)}
.footer .tel{font-size:22px;color:#fff;font-weight:700;margin:8px 0 4px}
.footer .copy{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;font-size:12.5px;color:rgba(255,255,255,.55);text-align:center;line-height:2;position:relative;z-index:1}
.footer .copy a:hover{color:#fff}

/* ---- 浮动客服 ---- */
.float-bar{position:fixed;right:14px;bottom:120px;z-index:99;display:flex;flex-direction:column;gap:8px}
.float-bar .fb{width:52px;background:#fff;border-radius:10px;box-shadow:var(--shadow-lg);text-align:center;padding:10px 4px;font-size:11px;color:var(--ink-2);cursor:pointer;position:relative}
.float-bar .fb .i{font-size:20px;display:block;margin-bottom:2px}
.float-bar .fb:hover{color:var(--primary)}
.float-bar .fb .pop{position:absolute;right:52px;top:50%;transform:translateY(-50%);background:#fff;border-radius:10px;box-shadow:var(--shadow-lg);padding:14px 18px;white-space:nowrap;opacity:0;visibility:hidden;pointer-events:none;text-align:left;transition:opacity .15s,visibility .15s}
.float-bar .fb:hover .pop,.float-bar .fb .pop:hover{opacity:1;visibility:visible;pointer-events:auto}
.float-bar .fb .pop b{color:var(--primary);font-size:16px}
.float-bar .fb .pop.qq-pop{width:200px;padding:12px 0;white-space:normal}
/* 鼠标从按钮滑向面板时经过的桥接区域，避免中间空隙导致面板消失 */
.float-bar .fb::before{content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);width:60px;height:120%;background:transparent;z-index:-1}
.qq-pop-wrap{max-height:360px;overflow-y:auto}
.qq-group{padding:0 14px;margin-bottom:10px}
.qq-group:last-child{margin-bottom:0}
.qq-group-title{font-size:12px;color:var(--ink-3);margin-bottom:6px;font-weight:500}
.qq-item{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:6px;text-decoration:none;color:var(--ink-1);transition:background .2s}
.qq-item:hover{background:#f2f7ff;color:var(--primary)}
.qq-icon{font-size:16px;line-height:1}
.qq-no{font-size:14px;font-weight:500;font-family:monospace}
.qq-pop-tip{padding:8px 14px 0;font-size:11px;color:var(--ink-3);border-top:1px solid #f0f0f0;margin-top:4px}
.qq-item .qq-no{flex:1;font-size:14px;font-weight:500;font-family:monospace;min-width:0;overflow:hidden;text-overflow:ellipsis}
.qq-item .qq-copy{margin-left:auto;width:24px;height:24px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:6px;background:#fff;font-size:13px;color:var(--ink-2);cursor:pointer;transition:.15s;flex:0 0 24px}
.qq-item .qq-copy svg{display:block}
.qq-item .qq-copy:hover{border-color:var(--primary);color:var(--primary);background:#f2f7ff}
.qq-item .qq-copy.copied{border-color:#52c41a;color:#52c41a;background:#f6ffed}
.footer #setQQ a{color:inherit;text-decoration:none;display:inline-flex;align-items:center;gap:6px;font-size:inherit;line-height:1.5}
.footer #setQQ a:hover{color:var(--primary)}
.footer .hotline-list{list-style:none;padding-left:0}
.footer .hotline-list li{position:relative;padding-left:12px}
.footer .hotline-list li::before{content:"•";position:absolute;left:0;color:rgba(255,255,255,.55);font-size:inherit;line-height:inherit}

/* ---- 会员/表单 ---- */
.auth-wrap{min-height:calc(100vh - 300px);display:flex;align-items:center;justify-content:center;padding:60px 20px}
.auth-card{background:#fff;border-radius:16px;box-shadow:var(--shadow-lg);width:420px;max-width:100%;padding:40px}
.auth-card h2{text-align:center;margin-bottom:6px}
.auth-card .sub{text-align:center;color:var(--ink-3);font-size:13px;margin-bottom:28px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:8px;font-size:14px;outline:none;transition:.2s;background:#fff;color:var(--ink);font-family:inherit}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(11,99,229,.12)}
.form-msg{padding:10px 14px;border-radius:8px;font-size:13px;margin-bottom:16px;display:none}
.form-msg.err{display:block;background:#fdecec;color:var(--danger)}
.form-msg.ok{display:block;background:#e7f8f0;color:var(--ok)}

/* ---- 会员中心 ---- */
.member-layout{display:grid;grid-template-columns:230px 1fr;gap:24px;padding:36px 0 60px;align-items:start}
.member-side{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.member-side .u{padding:24px 20px;background:linear-gradient(135deg,#10306b,#0b63e5);color:#fff}
.member-side .u .av{width:52px;height:52px;border-radius:50%;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;margin-bottom:10px}
.member-side .u p{font-size:15px;font-weight:600}
.member-side .u small{font-size:12px;color:rgba(255,255,255,.7)}
.member-side nav a{display:flex;align-items:center;gap:10px;padding:13px 20px;font-size:14px;color:var(--ink-2);border-left:3px solid transparent}
.member-side nav a:hover{background:var(--bg)}
.member-side nav a.on{color:var(--primary);background:var(--primary-light);border-left-color:var(--primary);font-weight:600}
.member-main{min-width:0}
.panel{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:26px;margin-bottom:22px}
.panel h3{font-size:17px;margin-bottom:18px;display:flex;align-items:center;justify-content:space-between}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{background:linear-gradient(135deg,#f6f9ff,#eef4ff);border-radius:10px;padding:20px}
.stat .v{font-size:26px;font-weight:700;color:var(--primary)}
.stat .l{font-size:13px;color:var(--ink-2);margin-top:4px}
.badge{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12px}
.badge.ok{background:#e7f8f0;color:var(--ok)}
.badge.warn{background:#fff6e8;color:#d98f00}
.badge.info{background:var(--primary-light);color:var(--primary)}
.badge.off{background:#f0f2f6;color:var(--ink-3)}
.badge.danger{background:#fdecec;color:var(--danger)}
.empty{text-align:center;color:var(--ink-3);padding:40px 0;font-size:14px}
.modal-mask{position:fixed;inset:0;background:rgba(13,23,48,.5);z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
.modal-mask.show{display:flex}
.modal{background:#fff;border-radius:14px;width:520px;max-width:100%;max-height:88vh;overflow:auto;padding:30px}
.modal h3{margin-bottom:20px}
.modal .x{float:right;cursor:pointer;font-size:20px;color:var(--ink-3)}

/* ---- 新闻 ---- */
.news-list li{background:#fff;border-radius:10px;box-shadow:var(--shadow);padding:18px 24px;margin-bottom:14px;display:flex;justify-content:space-between;align-items:center;gap:20px;transition:.2s}
.news-list li:hover{transform:translateX(4px)}
.news-list .t{font-size:15px;color:var(--ink)}
.news-list .t:hover{color:var(--primary)}
.news-list time{color:var(--ink-3);font-size:13px;flex-shrink:0}

/* ---- 其他 ---- */
.feature-line{display:flex;gap:14px;align-items:flex-start;background:#fff;border-radius:10px;padding:20px;box-shadow:var(--shadow)}
.feature-line .i{font-size:24px}
.kw-cloud{display:flex;flex-wrap:wrap;gap:10px}
.kw-cloud span{background:#fff;border:1px solid var(--line);padding:5px 14px;border-radius:20px;font-size:13px;color:var(--ink-2)}
.notice-bar{background:#fff7ee;border:1px solid #ffe3c8;color:#b25e00;border-radius:10px;padding:14px 18px;font-size:14px;margin-bottom:24px}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.rich p{margin-bottom:12px;color:var(--ink-2)}
.rich h4{margin:20px 0 10px;font-size:17px;color:var(--ink)}
.rich li{color:var(--ink-2);margin-bottom:8px;padding-left:18px;position:relative}
.rich li::before{content:"◆";position:absolute;left:0;color:var(--primary);font-size:10px;top:6px}
@media(max-width:1080px){
  .nav-cta{margin-left:auto}
  .nav-toggle{display:flex;margin-left:12px}
  .nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;box-shadow:var(--shadow-lg);max-height:82vh;overflow:auto;flex:none;justify-content:flex-start}
  .nav.open{display:block}
  .nav>ul{flex-direction:column;width:100%;overflow:visible}
  .nav>ul>li{position:static}
  .nav>ul>li>a{height:auto;padding:14px 18px;border-bottom:1px solid var(--line);font-size:15px}
  .nav>ul>li.cur>a::after{display:none}
  .nav .sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;min-width:0;padding:0 0 6px;display:block}
  .nav .sub a{padding:11px 18px 11px 36px;border-bottom:1px solid var(--line);white-space:normal}
  .two-col{grid-template-columns:1fr}
  .page-hero h1{font-size:26px}
}
@media(max-width:1024px){
  .g4,.g5,.g6{grid-template-columns:repeat(3,1fr)}
  .cert-gallery{grid-template-columns:repeat(3,1fr)}
  .footer .top{grid-template-columns:1fr 1fr}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .member-layout{grid-template-columns:1fr}
  .nav>ul>li>a{padding:0 10px;font-size:14px}
  .header .w{gap:10px}
}
@media(max-width:720px){
  .g2,.g3,.g4,.g5,.g6{grid-template-columns:1fr 1fr}
  .cert-gallery{grid-template-columns:1fr 1fr}
  /* 顶栏简化：手机端仅保留热线，隐藏登录等次要链接，避免拥挤 */
  .topbar .w{height:auto;padding:6px 0;font-size:12px}
  .topbar .w>span:last-child{display:none}
  /* 浮动客服改为底部固定工具栏，避免遮挡正文；底部增加安全区内边距，防止被手机系统导航条挡住 */
  .float-bar{left:0;right:0;bottom:0;top:auto;flex-direction:row;justify-content:space-around;height:auto;min-height:56px;padding:0 0 max(16px, env(safe-area-inset-bottom, 0)) 0;background:#fff;border-top:1px solid #e8ecf2;box-shadow:0 -2px 10px rgba(13,43,102,.08);gap:0}
  .float-bar .fb{flex:1;flex-direction:row;gap:4px;width:auto;padding:8px 2px;font-size:11px;border-radius:0;background:transparent;box-shadow:none}
  .float-bar .fb .i{font-size:18px;margin-bottom:0}
  .float-bar .fb::before{display:none}
  .float-bar .fb .pop{right:auto;left:50%;bottom:72px;top:auto;transform:translateX(-50%) translateY(6px)}
  .float-bar .fb:hover .pop{transform:translateX(-50%) translateY(0)}
  /* 手机端 QQ 面板改为相对于视口全屏宽度，避免左侧被屏幕边缘遮挡 */
  .float-bar .fb .pop.qq-pop{position:fixed;left:10px;right:10px;bottom:72px;top:auto;width:auto;transform:translateY(6px)}
  .float-bar .fb:hover .pop.qq-pop{transform:translateY(0)}
  body{padding-bottom:72px}
  /* 表格手机端强制不换行，用横向滚动查看完整数据 */
  .tbl-wrap{position:relative}
  .tbl-wrap::after{content:"";position:absolute;right:0;top:0;bottom:0;width:24px;background:linear-gradient(to right,transparent,rgba(0,0,0,.08));pointer-events:none}
  .tbl th,.tbl td{white-space:nowrap}
  /* 页脚两列 */
  .footer .top{grid-template-columns:1fr 1fr;gap:28px;padding:36px 0 28px}
  .footer h4,.footer .brand h4{font-size:15px;margin-bottom:14px}
  .footer li,.footer .brand li{font-size:13px;margin-bottom:6px;line-height:1.5}
  .footer #setQQ a{font-size:13px;line-height:1.55;gap:4px 6px;flex-wrap:wrap}
  .footer .tel{font-size:15px;margin:3px 0 5px}
  .footer .brand .ft-logo{height:36px;margin-bottom:10px}
  .footer .copy{font-size:12px;line-height:1.8;padding:16px 0}
  /* 首页 Hero 适配 */
  .hero-v2{padding:46px 0 58px}
  .hero-v2 h1{font-size:27px;word-break:break-word;overflow-wrap:anywhere}
  .hero-v2 .highlight{font-size:19px}
  .hero-v2 .sub{font-size:15px;margin:16px 0 22px}
  .hero-v2 .acts .btn-primary,.hero-v2 .acts .btn-outline{padding:12px 22px;font-size:15px}
  .section-v2{padding:54px 0}
  .sec-head-v2 h2{font-size:25px}
  .cta-band{padding:40px 18px}
  .cta-band h2{font-size:22px}
  /* 产品特性面板手机端单列，避免窄列标题换行 */
  .prod-pane.g3{grid-template-columns:1fr}
  .prod-pane .card h3{font-size:16px}
}
@media(max-width:480px){
  .g2,.g3,.g4,.g5,.g6{grid-template-columns:1fr}
  .cert-gallery{grid-template-columns:1fr}
  .footer .top{grid-template-columns:1fr;gap:24px;padding:32px 0 24px}
  .footer h4,.footer .brand h4{font-size:14px;margin-bottom:12px}
  .footer li,.footer .brand li{font-size:13px;margin-bottom:5px;line-height:1.45}
  .footer #setQQ a{font-size:13px;line-height:1.5;gap:4px 6px;flex-wrap:wrap}
  .footer .tel{font-size:15px;margin:3px 0 5px}
  .footer .copy{font-size:11.5px;padding:14px 0}
  .hero-v2 h1{font-size:24px}
  .hero-v2 .highlight{font-size:17px}
  .float-bar{left:0;right:0;bottom:0;top:auto;flex-direction:row;justify-content:space-around;height:auto;min-height:56px;padding:0 0 max(16px, env(safe-area-inset-bottom, 0)) 0;background:#fff;border-top:1px solid #e8ecf2;box-shadow:0 -2px 10px rgba(13,43,102,.08);gap:0}
  .float-bar .fb{flex:1;flex-direction:row;gap:4px;width:auto;padding:8px 2px;font-size:11px;border-radius:0;background:transparent;box-shadow:none}
  .float-bar .fb .i{font-size:18px;margin-bottom:0}
  .float-bar .fb::before{display:none}
  .float-bar .fb .pop.qq-pop{position:fixed;left:10px;right:10px;bottom:72px;top:auto;width:auto;transform:translateY(6px)}
  .float-bar .fb:hover .pop.qq-pop{transform:translateY(0)}
  body{padding-bottom:72px}
  .tbl-wrap{position:relative}
  .tbl-wrap::after{content:"";position:absolute;right:0;top:0;bottom:0;width:24px;background:linear-gradient(to right,transparent,rgba(0,0,0,.08));pointer-events:none}
  .tbl th,.tbl td{white-space:nowrap}
}

/* 机房介绍卡片 */
.room-card{text-align:left;padding:0;overflow:hidden;display:flex;flex-direction:column;transition:transform .18s ease,box-shadow .18s ease}
.room-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(13,43,102,.13)}
.room-card .room-cover{display:block;background:#eef3fa;line-height:0}
.room-card .room-cover img{width:100%;height:210px;object-fit:cover;display:block;transition:transform .3s ease}
.room-card .room-cover:hover img{transform:scale(1.03)}
.room-card .room-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.room-card .room-head{margin-bottom:10px}
.room-card .room-tag{display:inline-block;background:#e8f1ff;color:var(--primary,#0b63e5);font-size:12px;padding:3px 10px;border-radius:999px;margin-bottom:8px}
.room-card h3{font-size:17px}
.room-card p{color:#5b6b83;font-size:13.5px;line-height:1.9;flex:1}
.room-card .room-more{display:inline-block;margin-top:14px;color:var(--primary,#0b63e5);font-size:13.5px;font-weight:600}
.room-card .room-more:hover{text-decoration:underline}

/* 机房详情页正文 */
.room-detail{background:#fff;border-radius:12px;box-shadow:0 6px 24px rgba(13,43,102,.07);padding:34px 40px}
.room-detail h1{font-size:26px;margin-bottom:12px;color:#0d2b66}
.room-detail .meta{color:#93a1b7;font-size:13.5px;margin-bottom:20px;padding-bottom:18px;border-bottom:1px solid #eef2f7}
.room-detail .lead{color:#43506a;font-size:15px;line-height:2;margin-bottom:24px;background:#f6f9fe;border-left:3px solid var(--primary,#0b63e5);padding:16px 20px;border-radius:0 8px 8px 0}
.room-detail .body{color:#33415c;font-size:15px;line-height:1.95}
.room-detail .body img{max-width:100%;height:auto;border-radius:8px;margin:12px 0;display:block}
.room-detail .body p{margin:12px 0}
.room-detail .body h2,.room-detail .body h3{color:#0d2b66;margin:22px 0 10px}
.room-detail .body table{width:100%;border-collapse:collapse;margin:16px 0;font-size:14px}
.room-detail .body td,.room-detail .body th{border:1px solid #e3e9f2;padding:8px 12px}
@media(max-width:768px){.room-detail{padding:24px 18px}.room-card .room-cover img{height:180px}}

/* 全局 CTA 区块与按钮变体 */
.cta-band{background:linear-gradient(120deg,#0d2b66,#0b63e5);color:#fff;text-align:center;padding:52px 20px}
.cta-band h2{font-size:26px;margin-bottom:8px}
.cta-band p{color:rgba(255,255,255,.78);margin-bottom:22px;font-size:14px}
.center{text-align:center}
.btn-light{background:#fff;color:#0b63e5;margin:0 6px}
.btn-light:hover{background:#eaf2ff}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55);margin:0 6px}
.btn-ghost:hover{border-color:#fff}