:root{
  --brand:#c8102e;
  --brand-dark:#8f0b20;
  --ink:#15181d;
  --ink-2:#4a5058;
  --ink-3:#8a9099;
  --line:#e6e9ee;
  --bg:#f7f8fa;
  --card:#fff;
  --radius:14px;
  --shadow:0 2px 14px rgba(20,24,30,.06);
  --shadow-l:0 8px 30px rgba(20,24,30,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
.wrap{max-width:1240px;margin:0 auto;padding:0 20px}
em{font-style:normal}

/* ---------- topbar ---------- */
.topbar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60}
.topbar-in{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;flex:0 1 auto;min-width:0;overflow:hidden}
.brand img{height:38px;width:auto}
.topnav{display:flex;gap:22px;margin-left:auto}
.topnav a{color:var(--ink-2);text-decoration:none;font-size:14px;transition:.2s;white-space:nowrap}
.topnav a:hover{color:var(--brand)}
/* 汉堡按钮默认隐藏，仅窄屏显示 */
.nav-toggle{display:none;position:relative}
.btn-top{
  background:var(--brand);color:#fff!important;padding:8px 18px;border-radius:8px;
  font-size:14px;text-decoration:none;white-space:nowrap;transition:.2s;flex:0 0 auto
}
.btn-top:hover{background:var(--brand-dark)}

/* ---------- hero（新版：左右分栏） ---------- */
.hero{
  background:linear-gradient(135deg,#15181d 0%,#241c20 52%,#4a1a22 100%);
  padding:66px 0 62px;position:relative;overflow:hidden
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(200,16,46,.28),transparent 66%);pointer-events:none
}
.hero::before{
  content:"";position:absolute;left:-100px;bottom:-180px;width:400px;height:400px;
  background:radial-gradient(circle,rgba(255,255,255,.05),transparent 70%);pointer-events:none
}
.hero-in{display:flex;align-items:center;gap:52px;position:relative;z-index:1}
.hero-copy{flex:1 1 58%;min-width:0}
.hero-art{flex:0 0 40%;min-width:0;position:relative}
.hero-art img{
  width:100%;border-radius:16px;opacity:.92;
  box-shadow:0 24px 60px rgba(0,0,0,.45);border:1px solid rgba(255,255,255,.08)
}
.hero-badge{
  display:inline-block;background:rgba(200,16,46,.16);border:1px solid rgba(200,16,46,.4);
  color:#ff8a9c;font-size:12.5px;padding:5px 15px;border-radius:999px;
  letter-spacing:.4px;margin-bottom:20px
}
.hero-title{
  font-size:42px;font-weight:800;color:#fff;line-height:1.28;letter-spacing:.5px
}
.hero-desc{margin-top:18px;font-size:16px;color:#b9bec7;line-height:1.85;max-width:640px}
.hero-acts{display:flex;gap:12px;margin-top:30px;flex-wrap:wrap}
.hero-acts .btn-primary{padding:13px 30px;font-size:15px}
.btn-ghost{
  display:inline-flex;align-items:center;background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.20);color:#e8eaee;
  padding:13px 26px;border-radius:9px;font-size:15px;font-weight:600;
  cursor:pointer;transition:.2s;text-decoration:none
}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.34);color:#fff}
.hero-points{
  display:flex;gap:36px;margin-top:38px;padding-top:28px;
  border-top:1px solid rgba(255,255,255,.10);list-style:none
}
.hero-points li{display:flex;flex-direction:column;gap:3px}
.hero-points b{font-size:22px;font-weight:800;color:#fff;line-height:1.2}
.hero-points span{font-size:12.5px;color:#8f959e}

/* ---------- 痛点引入 ---------- */
.pain-sec{background:#fff;border-bottom:1px solid var(--line)}
.pain-head{text-align:center;max-width:820px;margin:0 auto 44px}
.pain-q{
  font-size:26px;font-weight:700;color:var(--ink);line-height:1.5;
  padding-left:20px;padding-right:20px
}
.pain-a{margin-top:18px;font-size:15.5px;color:var(--ink-2);line-height:1.9}
.pain-a b{color:var(--brand)}
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.pain-item{
  background:#fafbfc;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 20px;position:relative;transition:.22s
}
.pain-item:hover{border-color:#f0c3cb;transform:translateY(-3px);box-shadow:var(--shadow)}
.pain-n{
  display:inline-block;font-size:12px;font-weight:800;color:var(--brand);
  background:rgba(200,16,46,.09);padding:3px 10px;border-radius:6px;margin-bottom:12px
}
.pain-item h3{font-size:17px;font-weight:700;margin-bottom:9px}
.pain-item p{font-size:13.5px;color:var(--ink-2);line-height:1.8}
.pain-conclusion{
  margin-top:32px;text-align:center;background:linear-gradient(120deg,#1c1f25,#3a1a20);
  border-radius:14px;padding:26px 24px;color:#fff
}
.pain-arrow{display:block;font-size:20px;color:var(--brand);margin-bottom:8px}
.pain-conclusion p{font-size:17px;font-weight:600;line-height:1.7}
.pain-conclusion b{color:#ff8a9c}

/* ---------- 公司介绍 ---------- */
.about-sec{background:var(--bg)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.about-copy>p{font-size:16px;color:var(--ink-2);line-height:1.9;margin-bottom:18px}
.about-do{display:grid;gap:12px;margin-bottom:22px}
.about-do-item{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:10px;padding:15px 18px
}
.about-do-tag{
  display:inline-block;font-size:12.5px;font-weight:700;color:var(--brand);
  background:rgba(200,16,46,.08);padding:2px 10px;border-radius:5px;margin-bottom:6px
}
.about-do-item p{font-size:14.5px;color:var(--ink-2);line-height:1.75}
.about-quote{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:20px 22px;font-size:15px;color:var(--ink-2);line-height:1.95;
  margin-bottom:18px;position:relative
}
.about-quote::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--brand);border-radius:3px
}
.about-quote b{color:var(--ink)}
.about-end{font-size:17px;font-weight:700;color:var(--ink)!important}
.about-art{position:relative}
.about-art img{width:100%;border-radius:16px;box-shadow:var(--shadow-l)}
.about-stat{
  position:absolute;left:-16px;bottom:26px;background:#fff;border-radius:14px;
  padding:16px 22px;box-shadow:0 10px 34px rgba(20,24,30,.16);
  display:flex;flex-direction:column;align-items:center;gap:2px
}
.about-stat b{font-size:34px;font-weight:800;color:var(--brand);line-height:1}
.about-stat span{font-size:12.5px;color:var(--ink-3);white-space:nowrap}
.mission-card{
  margin-top:44px;background:linear-gradient(120deg,#1c1f25 0%,#2e1c22 60%,#4a1a22 100%);
  border-radius:18px;padding:44px 40px;text-align:center;color:#fff
}
.mission-label{
  display:inline-block;font-size:13px;color:#ff8a9c;border:1px solid rgba(200,16,46,.42);
  background:rgba(200,16,46,.14);padding:5px 16px;border-radius:999px;margin-bottom:20px
}
.mission-main{font-size:23px;font-weight:600;line-height:1.75;color:#f2f4f6}
.mission-main b{color:#ff8a9c}
.mission-sub{margin-top:16px;font-size:15px;color:#9aa0a9;letter-spacing:1px}

/* ---------- 产品线 ---------- */
.lines-sec{background:#fff;border-bottom:1px solid var(--line)}
.lines-sec .sec-head p b{color:var(--brand)}
.line-card{
  display:grid;grid-template-columns:1fr 1.25fr;gap:38px;align-items:center;
  background:#fafbfc;border:1px solid var(--line);border-radius:18px;
  padding:32px;margin-bottom:26px;transition:.24s
}
.line-card:hover{border-color:#f0c3cb;box-shadow:var(--shadow-l)}
.line-art img{width:100%;border-radius:14px;box-shadow:0 8px 26px rgba(20,24,30,.10)}
.line-no{
  display:inline-block;font-size:12px;font-weight:700;color:var(--brand);
  background:rgba(200,16,46,.09);padding:3px 11px;border-radius:5px;margin-bottom:10px
}
.line-title{font-size:24px;font-weight:700;line-height:1.4}
.line-for{margin-top:6px;font-size:14px;color:var(--ink-3)}
.line-lead{margin-top:16px;font-size:15px;color:var(--ink);font-weight:600;line-height:1.75}
.line-desc{margin-top:8px;font-size:14.5px;color:var(--ink-2);line-height:1.85}
.line-desc b{color:var(--ink)}
.line-modules{
  margin-top:9px;font-size:14px;color:var(--brand);font-weight:600;line-height:1.9;
  background:rgba(200,16,46,.05);border-radius:9px;padding:12px 15px
}
.line-list{margin-top:16px;display:grid;gap:11px}
.line-list li{
  list-style:none;padding-left:24px;position:relative;
  font-size:14px;color:var(--ink-2);line-height:1.8
}
.line-list li::before{
  content:"";position:absolute;left:4px;top:9px;width:7px;height:7px;
  border-radius:50%;background:var(--brand)
}
.line-list li b{color:var(--ink);margin-right:8px}
.line-note{
  margin-top:18px;padding:14px 16px;background:#fff;border:1px dashed #e0c4ca;
  border-radius:10px;font-size:14px;color:var(--ink-2);line-height:1.85
}
.line-note b{color:var(--brand)}

/* ---------- 产品线对比表 ---------- */
.cmp-block{margin-top:40px}
.cmp-title{font-size:21px;font-weight:700;text-align:center;margin-bottom:20px}
.cmp-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:14px}
.cmp-table{width:100%;border-collapse:collapse;background:#fff;box-shadow:var(--shadow);min-width:760px}
.cmp-table th,.cmp-table td{padding:15px 18px;text-align:left;font-size:14px;line-height:1.7;border-bottom:1px solid var(--line)}
.cmp-table thead th{
  background:linear-gradient(180deg,#1c1f25,#2a1c21);color:#fff;font-weight:700;
  font-size:15px;vertical-align:bottom
}
.cmp-table thead th span{font-weight:400;font-size:12.5px;color:#9aa0a9}
.cmp-table .cmp-corner{background:linear-gradient(180deg,#1c1f25,#2a1c21);width:110px}
.cmp-table tbody th{
  background:#f7f8fa;font-weight:700;color:var(--ink);width:110px;
  font-size:13.5px;white-space:nowrap
}
.cmp-table tbody td{color:var(--ink-2)}
.cmp-table tbody tr:last-child th,.cmp-table tbody tr:last-child td{border-bottom:0}
.cmp-table tbody tr:hover td,.cmp-table tbody tr:hover th{background:#fdfafb}
.cmp-red{color:var(--brand)!important;font-weight:700;font-size:15px}
.cmp-hint{display:none;text-align:center;font-size:12px;color:var(--ink-3);margin-top:10px}

/* ---------- 为什么是梧桐 ---------- */
.trust-sec{background:var(--bg)}
.trust-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.trust-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 18px;transition:.22s;position:relative
}
.trust-item:hover{border-color:var(--brand);transform:translateY(-3px);box-shadow:var(--shadow-l)}
.trust-ico{
  display:flex;align-items:center;justify-content:center;width:38px;height:38px;
  border-radius:10px;background:rgba(200,16,46,.09);color:var(--brand);
  font-weight:800;font-size:14px;margin-bottom:13px
}
.trust-item h3{font-size:16px;font-weight:700;margin-bottom:8px;line-height:1.4}
.trust-item p{font-size:13px;color:var(--ink-2);line-height:1.8}

/* ---------- 定价区入口 ---------- */
.pricing-entry{padding:44px 0 8px}
.pe-card{
  background:linear-gradient(120deg,#1c1f25,#3a1a20);border-radius:18px;
  padding:38px 40px;display:flex;align-items:center;gap:28px;color:#fff
}
.pe-left{flex:1;min-width:0}
.pe-label{
  display:inline-block;font-size:12.5px;color:#ff8a9c;border:1px solid rgba(200,16,46,.4);
  background:rgba(200,16,46,.14);padding:4px 14px;border-radius:999px;margin-bottom:12px
}
.pe-left h2{font-size:23px;font-weight:700;margin-bottom:8px}
.pe-left p{font-size:14px;color:#a9afb8;line-height:1.8;max-width:640px}
.pe-card .btn-primary{white-space:nowrap;flex:0 0 auto}

/* ---------- sections ---------- */
.sec{padding:54px 0}
.sec-head{margin-bottom:26px;position:relative;padding-left:52px}
.sec-no{
  position:absolute;left:0;top:2px;font-size:30px;font-weight:800;color:var(--brand);
  opacity:.18;line-height:1
}
.sec-head h2{font-size:25px;font-weight:700;display:flex;align-items:center;gap:10px}
.sec-head h2 .cnt{font-size:15px;font-weight:600;color:var(--brand);background:rgba(200,16,46,.09);padding:2px 11px;border-radius:999px}
.sec-head p{margin-top:7px;color:var(--ink-3);font-size:14px}

/* ---------- tabs ---------- */
.tabs{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:22px}
.tab{
  background:#fff;border:1px solid var(--line);color:var(--ink-2);
  padding:9px 22px;border-radius:999px;font-size:14px;cursor:pointer;transition:.2s;font-family:inherit
}
.tab:hover{border-color:var(--brand);color:var(--brand)}
.tab.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.tabs.sub .tab{padding:7px 17px;font-size:13px}
.bulk-select{
  background:#fff;border:1px dashed var(--brand);color:var(--brand);
  padding:7px 17px;border-radius:999px;font-size:13px;cursor:pointer;margin-left:auto;transition:.2s;font-family:inherit
}
.bulk-select:hover{background:var(--brand);color:#fff}
.tab-panel{display:none}
.tab-panel.active{display:block}
.panel-tip{color:var(--ink-3);font-size:13px;margin-bottom:14px}

/* ---------- 版本卡 ---------- */
.ver-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(238px,1fr));gap:16px}
.ver-card{display:block;cursor:pointer}
.ver-card input{position:absolute;opacity:0;width:0;height:0}
.ver-inner{
  display:flex;flex-direction:column;background:var(--card);
  border:2px solid var(--line);border-radius:var(--radius);padding:22px 20px;
  height:100%;position:relative;transition:.22s
}
.ver-card:hover .ver-inner{border-color:var(--brand);box-shadow:var(--shadow-l);transform:translateY(-3px)}
.ver-card input:checked + .ver-inner{border-color:var(--brand);background:linear-gradient(180deg,#fff 0%,rgba(200,16,46,.045) 100%);box-shadow:0 8px 26px rgba(200,16,46,.16)}
.ver-check{
  position:absolute;top:16px;right:16px;width:20px;height:20px;border-radius:50%;
  border:2px solid #cdd3db;transition:.2s
}
.ver-card input:checked + .ver-inner .ver-check{background:var(--brand);border-color:var(--brand)}
.ver-card input:checked + .ver-inner .ver-check::after{
  content:"";position:absolute;left:5px;top:2px;width:5px;height:9px;
  border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)
}
.ver-name{font-size:16px;font-weight:700;padding-right:26px;margin-bottom:11px}
.ver-price{font-size:31px;font-weight:800;color:var(--brand);line-height:1.15}
.ver-price em{font-size:18px;font-weight:700;margin-right:2px}
.ver-renew{display:block;margin-top:5px;font-size:12.5px;color:var(--ink-3)}
.ver-desc{display:block;margin-top:9px;font-size:12.5px;color:var(--ink-3);line-height:1.5;min-height:36px}
.ver-badge{
  align-self:flex-start;margin-top:auto;background:rgba(31,122,255,.09);color:#1f7aff;
  font-size:11.5px;padding:3px 11px;border-radius:999px
}

/* ---------- 扩展端口 ---------- */
.ep-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(196px,1fr));gap:14px}
.ep-card{
  background:var(--card);border:2px solid var(--line);border-radius:var(--radius);
  padding:20px 18px;cursor:pointer;display:flex;flex-direction:column;
  position:relative;transition:.22s
}
.ep-card:hover{border-color:var(--brand);box-shadow:var(--shadow-l);transform:translateY(-3px)}
.ep-card input{position:absolute;opacity:0;width:0;height:0}
.ep-check{
  position:absolute;top:16px;right:16px;width:19px;height:19px;border-radius:5px;
  border:2px solid #cdd3db;transition:.2s
}
.ep-card input:checked ~ .ep-check{background:var(--brand);border-color:var(--brand)}
.ep-card input:checked ~ .ep-check::after{
  content:"";position:absolute;left:6px;top:2px;width:4px;height:9px;
  border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)
}
.ep-card input:checked{border-color:var(--brand)}
.ep-card:has(input:checked){border-color:var(--brand);background:linear-gradient(180deg,#fff,rgba(200,16,46,.045))}
.ep-name{font-size:15.5px;font-weight:700;padding-right:26px}
.ep-label{font-size:12px;color:var(--ink-3);margin-top:3px}
.ep-price{font-size:24px;font-weight:800;color:var(--brand);margin-top:12px}
.ep-price em{font-size:15px;margin-right:1px}

/* ---------- 插件 ---------- */
.plug-panel{display:none}
.plug-panel.active{display:block}
.plug-block{margin-bottom:22px}
.plug-cat{
  font-size:13px;font-weight:700;color:var(--ink-2);background:#eceff3;
  display:inline-block;padding:4px 14px;border-radius:6px;margin-bottom:12px
}
.plug-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(178px,1fr));gap:10px}
.plug-chip{display:block;cursor:pointer;position:relative}
.plug-chip input{position:absolute;opacity:0;width:0;height:0}
.chip-box{
  display:block;background:var(--card);border:1.5px solid var(--line);border-radius:10px;
  padding:11px 13px;font-size:13.5px;transition:.18s;position:relative
}
.chip-box .chip-cat{
  display:block;font-size:11px;color:var(--ink-3);background:none;padding:0;margin-top:2px
}
.chip-box .chip-price{
  display:block;font-style:normal;font-size:13px;font-weight:700;color:var(--brand);margin-top:4px
}
.plug-chip:hover .chip-box{border-color:var(--brand);box-shadow:var(--shadow)}
.plug-chip input:checked + .chip-box{border-color:var(--brand);background:rgba(200,16,46,.05)}
.plug-chip.is-locked .chip-box{background:#f4f6f8;border-style:dashed;cursor:default}
.plug-chip.is-locked:hover .chip-box{border-color:var(--line);box-shadow:none}
.chip-tag{
  font-style:normal;font-size:10.5px;color:var(--brand);background:rgba(200,16,46,.10);
  padding:1px 7px;border-radius:4px;margin-left:6px;vertical-align:middle
}

/* ---------- 服务 ---------- */
.svc-block{margin-bottom:30px}
.svc-head{display:flex;align-items:center;gap:12px;margin-bottom:13px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.svc-title{font-size:16.5px;font-weight:700}
.svc-count{font-size:12.5px;color:var(--ink-3)}
.svc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:11px}
.svc-card{
  background:var(--card);border:1.5px solid var(--line);border-radius:11px;
  padding:13px 15px;cursor:pointer;position:relative;transition:.18s;
  display:flex;align-items:flex-start;gap:11px
}
.svc-card:hover{border-color:var(--brand);box-shadow:var(--shadow)}
.svc-card input{position:absolute;opacity:0;width:0;height:0}
.svc-check{
  flex:0 0 auto;width:19px;height:19px;border-radius:5px;border:2px solid #cdd3db;
  margin-top:2px;transition:.2s
}
.svc-card input:checked ~ .svc-check{background:var(--brand);border-color:var(--brand)}
.svc-card input:checked ~ .svc-check::after{
  content:"";position:absolute;margin-left:5px;margin-top:2px;width:4px;height:9px;
  border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)
}
.svc-card:has(input:checked){border-color:var(--brand);background:rgba(200,16,46,.04)}
.svc-body{flex:1;min-width:0}
.svc-name{display:block;font-size:14px;font-weight:600}
.svc-meta{display:block;font-size:11.5px;color:var(--ink-3);margin-top:3px;line-height:1.5}
.svc-price{display:block;font-size:14px;font-weight:800;color:var(--brand);margin-top:5px}

/* ---------- 说明卡 ---------- */
.note-sec{padding-top:14px}
.note-card{
  background:linear-gradient(120deg,#1c1f25,#3a1a20);border-radius:18px;
  padding:38px 34px;text-align:center;color:#fff
}
.note-card h3{font-size:21px;font-weight:700;margin-bottom:9px}
.note-card p{color:#aeb4bd;font-size:14px;margin-bottom:22px}
.btn-primary{
  background:var(--brand);color:#fff;border:0;padding:12px 30px;border-radius:9px;
  font-size:15px;font-weight:600;cursor:pointer;transition:.2s;font-family:inherit
}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px)}
.btn-primary.full{width:100%;padding:13px}

/* ---------- footer ---------- */
.foot{background:#15181d;padding:34px 0;text-align:center}
.foot-logo{height:32px;margin:0 auto 12px;width:auto;opacity:.95}
.foot p{color:#767c86;font-size:13px}

/* ---------- FAB ---------- */
.fab{position:fixed;right:26px;bottom:26px;z-index:70}
.fab-btn{
  background:var(--brand);color:#fff;border:0;border-radius:999px;
  padding:12px 22px 12px 14px;display:flex;align-items:center;gap:11px;
  cursor:pointer;box-shadow:0 10px 30px rgba(200,16,46,.42);font-family:inherit;transition:.2s
}
.fab-btn:hover{background:var(--brand-dark);transform:translateY(-2px)}
.fab-count{
  background:#fff;color:var(--brand);width:32px;height:32px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px
}
.fab-text{text-align:left;font-size:13.5px;font-weight:600;line-height:1.35}
.fab-text i{font-style:normal;font-weight:400;font-size:11.5px;opacity:.85}

/* ---------- drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(15,18,22,.5);opacity:0;visibility:hidden;transition:.28s;z-index:90}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(430px,94vw);background:#fff;
  z-index:100;transform:translateX(100%);transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;box-shadow:-8px 0 40px rgba(0,0,0,.16)
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;padding:20px 22px;border-bottom:1px solid var(--line)}
.drawer-head h3{font-size:17px;font-weight:700;flex:1}
.drawer-close,.modal-head button{background:none;border:0;font-size:26px;color:var(--ink-3);cursor:pointer;line-height:1}
.drawer-body{flex:1;overflow-y:auto;padding:16px 22px}
.drawer-foot{border-top:1px solid var(--line);padding:16px 22px 20px;background:#fafbfc}
.sum-row{display:flex;justify-content:space-between;align-items:center;font-size:13.5px;color:var(--ink-2);margin-bottom:7px}
.sum-row b{font-size:19px;color:var(--brand);font-weight:800}
.drawer-foot .btn-primary{margin-top:11px}
.qgroup{margin-bottom:16px}
.qgroup-title{font-size:12.5px;font-weight:700;color:var(--ink-3);margin-bottom:7px;display:flex;align-items:center;gap:7px}
.qgroup-title::after{content:"";flex:1;height:1px;background:var(--line)}
.qrow{display:flex;justify-content:space-between;gap:12px;padding:7px 0;font-size:13px;border-bottom:1px dashed #eef1f4}
.qrow-name{color:var(--ink-2);flex:1;min-width:0}
.qrow-price{font-weight:700;white-space:nowrap}
.empty{text-align:center;color:var(--ink-3);padding:52px 0;font-size:14px}

/* ---------- modal ---------- */
.modal-mask{
  position:fixed;inset:0;background:rgba(15,18,22,.55);z-index:110;
  display:none;align-items:center;justify-content:center;padding:20px
}
.modal-mask.show{display:flex}
.modal{background:#fff;border-radius:16px;width:min(470px,100%);max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-l)}
.modal-head{display:flex;align-items:center;padding:20px 24px;border-bottom:1px solid var(--line)}
.modal-head h3{font-size:17px;font-weight:700;flex:1}
.modal-body{padding:22px 24px 26px}
.fld{margin-bottom:15px}
.fld label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px;font-weight:600}
.fld input,.fld textarea{
  width:100%;border:1.5px solid var(--line);border-radius:9px;padding:10px 13px;
  font-size:14px;font-family:inherit;transition:.18s;background:#fff
}
.fld input:focus,.fld textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,16,46,.09)}
.modal-total{
  display:flex;justify-content:space-between;align-items:center;
  background:#faf6f7;border-radius:10px;padding:12px 15px;margin:18px 0 16px;font-size:14px
}
.modal-total b{font-size:22px;color:var(--brand);font-weight:800}
.done-msg{text-align:center;padding:34px 20px}
.done-msg .ok{width:60px;height:60px;border-radius:50%;background:rgba(40,170,90,.12);color:#1e9c56;font-size:32px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.done-msg h4{font-size:18px;margin-bottom:8px}
.done-msg p{color:var(--ink-3);font-size:13.5px;margin-bottom:6px}
.done-code{font-size:22px;font-weight:800;color:var(--brand);letter-spacing:1.5px;margin:14px 0}

/* ---------- 悬停介绍 ----------
   说明：桌面端气泡由 assets/app.js 的 #tipLayer 统一渲染并做边界检测，
        因此这里不允许 :hover 显示内嵌 tipbox，否则会与 tipLayer 叠加出现两份介绍。
        .tip-open 仅供触屏长按场景使用。 */
.tipbox{
  display:none;position:absolute;left:50%;bottom:calc(100% + 11px);transform:translateX(-50%) translateY(5px);
  width:270px;background:#22262d;color:#e6e9ee;font-size:12.5px;line-height:1.75;
  padding:13px 15px;border-radius:11px;z-index:80;opacity:0;transition:.2s;
  box-shadow:0 10px 34px rgba(0,0,0,.30);pointer-events:none;text-align:left;white-space:normal
}
.tipbox::after{
  content:"";position:absolute;top:100%;left:50%;transform:translateX(-50%);
  border:7px solid transparent;border-top-color:#22262d
}
/* 仅触屏长按触发；桌面端一律由 JS 渲染，避免重复 */
.tip-open .tipbox{display:block;opacity:1;transform:translateX(-50%) translateY(0)}
.plug-chip .tipbox{width:250px}
.svc-card .tipbox{width:262px}

/* 移动端 tooltip 独立层 */
.tip-layer{position:fixed;inset:0;pointer-events:none;z-index:120;display:none}
.tip-layer .tipbox{
  display:block;position:absolute;opacity:1;transform:none;left:auto;bottom:auto;
  width:250px;pointer-events:none
}
.tip-layer .tipbox::after{display:none}

/* ============================================================
   响应式适配
   断点策略：
     ≥1400px  大屏 PC      多栏宽松布局
     1200-1399 常规 PC
     992-1199  小平板 / 笔电  2 列
     768-991   平板        2 列紧凑，导航折叠
     576-767   大屏手机     单列
     ≤575     手机         单列，紧凑
   ============================================================ */

/* ---------- 大屏 PC：放大留白与列数 ---------- */
@media (min-width:1500px){
  .wrap{max-width:1400px}
  .ver-grid{grid-template-columns:repeat(auto-fit,minmax(258px,1fr))}
  .ep-grid{grid-template-columns:repeat(auto-fit,minmax(216px,1fr))}
  .plug-grid{grid-template-columns:repeat(auto-fill,minmax(196px,1fr))}
  .svc-grid{grid-template-columns:repeat(auto-fill,minmax(292px,1fr))}
  .hero{padding:80px 0 72px}
  .hero-title{font-size:44px}
}

/* ---------- 常规 PC：收窄以适配 1366/1440 笔记本 ---------- */
@media (max-width:1399px){
  .ver-grid{grid-template-columns:repeat(auto-fit,minmax(224px,1fr))}
  .svc-grid{grid-template-columns:repeat(auto-fill,minmax(252px,1fr))}
  .plug-grid{grid-template-columns:repeat(auto-fill,minmax(166px,1fr))}
}

/* ---------- 小平板 / 小笔电（1024-1199）：两列 ---------- */
@media (max-width:1199px){
  .wrap{padding:0 18px}
  .sec{padding:46px 0}
  .hero{padding:52px 0 48px}
  .hero-title{font-size:33px}

  .ver-grid{grid-template-columns:repeat(2,1fr)}
  .ep-grid{grid-template-columns:repeat(3,1fr)}
  .plug-grid{grid-template-columns:repeat(3,1fr)}
  .svc-grid{grid-template-columns:repeat(2,1fr)}

  .sec-head h2{font-size:23px}
  .ver-price{font-size:28px}
  .drawer{width:min(400px,90vw)}
}

/* ---------- 平板（768-991）：两列 + 导航折叠为抽屉 ---------- */
@media (max-width:991px){
  .topbar-in{height:58px;gap:12px}
  .brand img{height:32px}

  /* 导航改为可展开面板 */
  .topnav{
    position:absolute;left:0;right:0;top:58px;
    background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;gap:0;padding:6px 0;margin-left:0;
    box-shadow:0 10px 26px rgba(20,24,30,.10);
    max-height:0;overflow:hidden;transition:max-height .28s ease
  }
  .topnav.open{max-height:340px}
  .topnav a{padding:12px 22px;font-size:15px;width:100%}
  .nav-toggle{
    display:flex!important;align-items:center;justify-content:center;
    width:40px;height:40px;border:1.5px solid var(--line);border-radius:9px;
    background:#fff;cursor:pointer;margin-left:auto;flex:0 0 auto
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative;transition:.2s}
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);transition:.2s
  }
  .nav-toggle span::before{top:-6px}
  .nav-toggle span::after{top:6px}
  .nav-toggle.act span{background:transparent}
  .nav-toggle.act span::before{transform:rotate(45deg);top:0}
  .nav-toggle.act span::after{transform:rotate(-45deg);top:0}
  .btn-top{padding:8px 15px;font-size:13.5px;flex:0 0 auto}
  .nav-toggle{margin-left:auto}

  .hero{padding:44px 0 42px}
  .hero-title{font-size:29px;line-height:1.35}
  .hero-desc{font-size:15px}

  .sec{padding:40px 0}
  .sec-head{margin-bottom:20px}
  .sec-head h2{font-size:21px}
  .sec-head p{font-size:13.5px}

  .ver-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .ep-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .plug-grid{grid-template-columns:repeat(2,1fr);gap:9px}
  .svc-grid{grid-template-columns:1fr;gap:10px}

  .ver-inner{padding:18px 16px}
  .ver-name{font-size:15px}
  .ver-price{font-size:26px}
  .ver-desc{display:none}

  .tab{padding:8px 17px;font-size:13.5px}
  .bulk-select{margin-left:0}

  .svc-card{padding:12px 14px}
  .note-card{padding:30px 22px}
  .note-card h3{font-size:18px}
  .drawer{width:min(440px,92vw)}
}

/* ---------- 手机（≤767）---------- */
@media (max-width:767px){
  .topbar-in{height:56px;padding:0 14px;gap:8px}
  .brand img{height:28px}
  .topnav{top:56px}
  /* 手机上顶栏空间紧张：后台按钮压缩，保证不换行不消失；汉堡置右 */
  .btn-top{padding:7px 11px;font-size:12.5px;border-radius:7px;white-space:nowrap;flex:0 0 auto;order:1}
  .nav-toggle{width:36px;height:36px;flex:0 0 auto;order:2;margin-left:4px}

  .wrap{padding:0 16px}
  .hero{padding:34px 0 34px}
  .hero-title{font-size:23px;line-height:1.4;letter-spacing:0}
  .hero-desc{font-size:14px;margin-top:10px}
  .hero-chips{margin-top:16px;gap:8px}
  .chip{padding:5px 13px;font-size:12px}

  .sec{padding:32px 0}
  .sec-head{padding-left:0;margin-bottom:16px}
  .sec-no{position:static;display:block;font-size:18px;margin-bottom:2px}
  .sec-head h2{font-size:19px;gap:7px;flex-wrap:wrap}
  .sec-head h2 .cnt{font-size:12.5px;padding:2px 9px}
  .sec-head p{font-size:13px;margin-top:5px}

  .tabs{gap:7px;margin-bottom:16px}
  .tab{padding:7px 15px;font-size:13px}
  .tabs.sub .tab{padding:6px 13px;font-size:12.5px}
  .bulk-select{padding:6px 14px;font-size:12.5px}

  /* 全部单列 */
  .ver-grid,.ep-grid,.plug-grid,.svc-grid{grid-template-columns:1fr}

  .ver-inner{padding:16px 15px}
  .ver-name{font-size:15px;margin-bottom:8px}
  .ver-price{font-size:25px}
  .ver-renew{font-size:12px}
  .ver-badge{margin-top:12px}

  .ep-card{padding:16px 15px}
  .ep-name{font-size:14.5px}
  .ep-price{font-size:21px;margin-top:9px}

  .chip-box{padding:10px 12px;font-size:13px}

  .svc-head{gap:9px}
  .svc-title{font-size:15px}
  .svc-card{padding:11px 13px;gap:9px}
  .svc-name{font-size:13.5px}
  .svc-meta{font-size:11px}
  .svc-price{font-size:13.5px;margin-top:4px}

  .note-card{padding:24px 18px;border-radius:14px}
  .note-card h3{font-size:16px;line-height:1.5}
  .note-card p{font-size:13px;margin-bottom:18px}
  .btn-primary{padding:11px 22px;font-size:14px}

  .foot{padding:26px 0}
  .foot-logo{height:27px}

  /* 悬浮报价按钮压缩 */
  .fab{right:12px;bottom:12px;left:12px}
  .fab-btn{width:100%;justify-content:center;padding:12px 18px}
  .fab-text{text-align:left}

  /* 抽屉全屏 */
  .drawer{width:100%;max-width:100%}
  .drawer-head{padding:16px 18px}
  .drawer-body{padding:14px 18px}
  .drawer-foot{padding:14px 18px 18px}
  .sum-row b{font-size:18px}

  .modal-body{padding:18px 20px 22px}
  .modal-total b{font-size:20px}

  /* 手机端禁用悬停气泡，改用长按 */
  .tipbox{display:none!important}
  .tip-layer .tipbox{display:block!important;width:calc(100vw - 24px);max-width:320px}
}

/* ---------- 超小屏（≤360）---------- */
@media (max-width:360px){
  .wrap{padding:0 12px}
  .hero-title{font-size:20px}
  .hero-desc{font-size:13px}
  .sec-head h2{font-size:17.5px}
  .ver-price{font-size:23px}
  .btn-top{padding:7px 12px;font-size:12.5px}
  .brand img{height:26px}
  .fab-text{font-size:12.5px}
  .fab-count{width:29px;height:29px;font-size:14px}
}

/* ---------- 触屏设备：去掉 hover 位移，避免误触 ---------- */
@media (hover:none){
  .ver-card:hover .ver-inner,
  .ep-card:hover,
  .svc-card:hover{transform:none}
  /* 触屏禁用内嵌气泡，统一走 #tipLayer */
  .tipbox{display:none!important}
  .tip-layer .tipbox{display:block!important;width:calc(100vw - 24px);max-width:320px}
}

/* ---------- 打印：隐藏交互元素 ---------- */
@media print{
  .topbar,.fab,.drawer,.drawer-mask,.tip-layer,.modal-mask,.btn-top{display:none!important}
  body{background:#fff}
  .sec{padding:18px 0;break-inside:avoid}
}

/* ============================================================
   新增区块（公司介绍 / 产品线 / 信任状）的响应式覆盖
   置于文件末尾以确保优先级，覆盖基础样式中的固定列数
   ============================================================ */

/* ---------- 大屏 PC ---------- */
@media (min-width:1500px){
  .hero{padding:76px 0 70px}
  .hero-title{font-size:48px}
  .hero-in{gap:64px}
  .pain-grid{gap:20px}
  .trust-grid{gap:18px}
  .line-card{padding:40px;gap:48px}
  .line-title{font-size:27px}
}

/* ---------- 常规 PC ---------- */
@media (max-width:1399px){
  .hero-title{font-size:38px}
  .hero-in{gap:42px}
  .pain-grid{grid-template-columns:repeat(4,1fr);gap:13px}
  .trust-grid{grid-template-columns:repeat(5,1fr);gap:12px}
  .line-card{grid-template-columns:1fr 1.2fr;gap:30px;padding:28px}
  .line-title{font-size:22px}
}

/* ---------- 小平板 / 小笔电（≤1199） ---------- */
@media (max-width:1199px){
  .hero{padding:52px 0 48px}
  .hero-title{font-size:32px;line-height:1.32}
  .hero-desc{font-size:15px;line-height:1.8}
  .hero-in{gap:32px}
  .hero-art{flex:0 0 38%}
  .hero-points{gap:26px;margin-top:30px;padding-top:22px}
  .hero-points b{font-size:19px}

  .pain-grid{grid-template-columns:repeat(2,1fr)}
  .pain-q{font-size:23px}
  .pain-a{font-size:14.5px}

  .about-grid{grid-template-columns:1fr 1fr;gap:30px}
  .mission-main{font-size:20px}
  .mission-card{padding:36px 30px}

  .line-card{grid-template-columns:1fr;gap:24px;padding:26px}
  .line-art{max-width:520px;margin:0 auto}
  .line-title{font-size:22px}

  .trust-grid{grid-template-columns:repeat(3,1fr)}
  .trust-item{padding:20px 16px}

  .pe-card{padding:32px 30px}
  .pe-left h2{font-size:20px}
}

/* ---------- 平板（≤991） ---------- */
@media (max-width:991px){
  .hero{padding:42px 0 40px}
  .hero-in{flex-direction:column;gap:30px;text-align:center}
  .hero-copy{flex:1 1 auto;width:100%}
  .hero-art{flex:1 1 auto;width:100%;max-width:560px}
  .hero-title{font-size:29px}
  .hero-desc{font-size:14.5px;margin:16px auto 0}
  .hero-br{display:none}
  .hero-acts{justify-content:center;margin-top:26px}
  .hero-points{justify-content:center;gap:32px;margin-top:30px;padding-top:24px}
  .hero-points li{align-items:center}

  .pain-head{margin-bottom:34px}
  .pain-q{font-size:21px}
  .pain-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .pain-item{padding:20px 17px}
  .pain-conclusion{padding:22px 18px}
  .pain-conclusion p{font-size:15px}

  .about-grid{grid-template-columns:1fr;gap:28px}
  .about-art{max-width:520px;margin:0 auto;width:100%}
  .about-stat{left:12px;bottom:14px;padding:12px 18px}
  .about-stat b{font-size:28px}
  .mission-card{padding:30px 22px;margin-top:32px}
  .mission-main{font-size:18px;line-height:1.7}
  .mob-br{display:none}

  .line-card{padding:22px;gap:20px}
  .line-title{font-size:20px}
  .line-list li{font-size:13.5px}
  .cmp-title{font-size:19px}
  .cmp-hint{display:block}
  .cmp-table th,.cmp-table td{padding:13px 14px;font-size:13.5px}

  .trust-grid{grid-template-columns:repeat(2,1fr);gap:12px}

  .pe-card{flex-direction:column;text-align:center;padding:28px 22px;gap:20px}
  .pe-left h2{font-size:19px}
}

/* ---------- 手机（≤767） ---------- */
@media (max-width:767px){
  .hero{padding:32px 0 34px}
  .hero-badge{font-size:11.5px;padding:4px 12px;margin-bottom:16px}
  .hero-title{font-size:24px;line-height:1.4}
  .hero-desc{font-size:13.5px;line-height:1.85;margin-top:14px}
  .hero-acts{margin-top:22px;gap:9px}
  .hero-acts .btn-primary,.btn-ghost{padding:11px 20px;font-size:14px;flex:1 1 auto;justify-content:center;text-align:center}
  .hero-points{gap:0;margin-top:26px;padding-top:20px;justify-content:space-between}
  .hero-points b{font-size:17px}
  .hero-points span{font-size:11px}
  .hero-art{max-width:100%}

  .pain-head{margin-bottom:26px}
  .pain-q{font-size:18px;padding:0}
  .pain-a{font-size:13.5px;line-height:1.85;margin-top:14px}
  .pain-grid{grid-template-columns:1fr;gap:10px}
  .pain-item{padding:16px 15px}
  .pain-item h3{font-size:16px;margin-bottom:6px}
  .pain-item p{font-size:13px;line-height:1.75}
  .pain-n{margin-bottom:9px}
  .pain-conclusion{margin-top:22px;padding:20px 16px;border-radius:12px}
  .pain-conclusion p{font-size:14px}

  .about-copy>p{font-size:14.5px}
  .about-do-item{padding:13px 15px}
  .about-do-item p{font-size:13.5px}
  .about-quote{font-size:13.5px;padding:16px 17px;line-height:1.85}
  .about-end{font-size:15px!important}
  .about-stat{left:8px;bottom:10px;padding:10px 15px}
  .about-stat b{font-size:23px}
  .about-stat span{font-size:11px}
  .mission-card{padding:26px 18px;margin-top:26px;border-radius:14px}
  .mission-label{font-size:12px;margin-bottom:15px}
  .mission-main{font-size:16px;line-height:1.75}
  .mission-sub{font-size:13px;margin-top:12px}

  .line-card{padding:18px;border-radius:14px;gap:18px;margin-bottom:18px}
  .line-title{font-size:18px}
  .line-for{font-size:12.5px}
  .line-lead{font-size:14px;margin-top:13px}
  .line-desc{font-size:13.5px}
  .line-modules{font-size:12.5px;padding:10px 12px;line-height:1.85}
  .line-list{gap:9px}
  .line-list li{font-size:13px;padding-left:20px}
  .line-note{font-size:13px;padding:12px 13px;margin-top:14px}
  .cmp-block{margin-top:28px}
  .cmp-title{font-size:17px;margin-bottom:14px}
  .cmp-table{min-width:680px}
  .cmp-table th,.cmp-table td{padding:11px 12px;font-size:13px}
  .cmp-table thead th{font-size:13.5px}
  .cmp-table thead th span{font-size:11px}
  .cmp-table tbody th{font-size:12.5px}
  .cmp-red{font-size:13.5px}

  .trust-grid{grid-template-columns:1fr;gap:10px}
  .trust-item{padding:16px 15px;display:flex;flex-direction:column}
  .trust-ico{margin-bottom:9px;width:32px;height:32px;font-size:12.5px}
  .trust-item h3{font-size:15px;margin-bottom:5px}
  .trust-item p{font-size:12.5px;line-height:1.75}

  .pricing-entry{padding:30px 0 4px}
  .pe-card{padding:22px 18px;border-radius:14px}
  .pe-left h2{font-size:17px}
  .pe-left p{font-size:13px}
}

/* ---------- 超小屏（≤360） ---------- */
@media (max-width:360px){
  .hero-title{font-size:21px}
  .hero-desc{font-size:12.5px}
  .hero-points b{font-size:15.5px}
  .hero-points span{font-size:10px}
  .btn-ghost{padding:10px 16px;font-size:13px}
  .pain-q{font-size:16.5px}
  .mission-main{font-size:15px}
  .line-title{font-size:17px}
  .pe-left h2{font-size:16px}
}