:root{
  --brand:#f5222f;
  --brand-2:#ff5a53;
  --brand-deep:#cc0f1a;
  --brand-ink:#8c1620;
  --brand-50:#ffe3e9;
  --accent:#f5222f;
  --accent-deep:#cc0f1a;
  --accent-50:#ffe3e9;
  --ink:#33333b;
  --muted:#66666b;
  --line:#dcdfe6;
  --bg-soft:#f7f7f7;
  --white:#ffffff;
  --radius:16px;
  --shadow:0 16px 40px rgba(122,10,22,.08);
  --shadow-lg:0 24px 60px rgba(122,10,22,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
[id]{scroll-margin-top:92px}
[id]{scroll-margin-top:92px}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased}
img,svg{display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:1160px;margin:0 auto;padding:0 24px}
section{padding:56px 0}
.section-head{max-width:640px;margin-bottom:30px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{display:inline-flex;align-items:center;font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-50);border:1px solid #f8b9c3;padding:5px 14px;border-radius:999px;margin-bottom:16px;letter-spacing:.5px}
.kicker > * + *{margin-left:8px}
.kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
h2{font-size:34px;font-size:clamp(26px,3.4vw,38px);line-height:1.25;color:#262A31;font-weight:700;letter-spacing:.5px}
.section-head .lead{color:var(--muted);font-size:16.5px;margin-top:14px}
h3{font-weight:700;color:#262A31}
.btn{display:inline-flex;align-items:center;justify-content:center;font-weight:600;
.btn > * + *{margin-left:8px}font-size:15.5px;padding:13px 26px;border-radius:12px;border:1px solid transparent;cursor:pointer;transition:all .25s ease;white-space:nowrap}
.btn svg{width:17px;height:17px}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 10px 24px rgba(230,0,18,.3)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 10px 24px rgba(230,0,18,.3)}
.btn-ghost{background:#fff;color:var(--brand-deep);border-color:#f5c2ca}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-50);transform:translateY(-2px)}
.btn-lg{padding:16px 32px;font-size:16.5px}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid rgba(220,223,231,.9)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{display:flex;align-items:center;font-weight:800;font-size:20px;color:#262A31}
.logo > * + *{margin-left:12px}
.logo-mark{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--brand),#ff5a53);color:#fff;display:flex;align-items:center;justify-content:center;font-size:21px;font-weight:800;box-shadow:0 6px 16px rgba(230,0,18,.28)}
.logo small{display:block;font-size:10.5px;font-weight:500;color:var(--muted);letter-spacing:1.5px;line-height:1.2}
.nav-links{display:flex;align-items:center;font-size:14.5px;color:#33333B}
.nav-links > * + *{margin-left:18px}
.nav-links a{position:relative;transition:color .2s;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;border-radius:2px;background:var(--brand);transition:width .25s}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after{width:100%}
.nav-right{display:flex;align-items:center;}
.nav-right > * + *{margin-left:18px}
.nav-tel{display:flex;align-items:center;font-weight:700;color:#262A31;font-size:15px}
.nav-tel > * + *{margin-left:8px}
.nav-tel svg{width:16px;height:16px;color:var(--accent)}
.nav-tels{display:flex;flex-direction:column;align-items:flex-end;line-height:1.25}
.nav-tels > * + *{margin-top:1px}
.nav-tels .nav-tel{font-size:16px}
.nav-cta{padding:10px 20px;font-size:14.5px}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center}
.nav-toggle > * + *{margin-top:5px}
.nav-toggle span{width:18px;height:2px;background:var(--brand-ink);border-radius:2px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:480px){
  .logo{font-size:18px}
  .logo > * + *{margin-left:10px}
  .logo-mark{width:36px;height:36px;font-size:18px;border-radius:10px}
  .logo small{display:none}
  .nav-cta{padding:8px 12px;font-size:13px}
  .nav-right > * + *{margin-left:12px}
}

/* ---------- Hero ---------- */
.hero{position:relative;padding:56px 0 62px;overflow:hidden;background:radial-gradient(900px 480px at 12% -10%,#ffe9eb 0%,rgba(255,233,235,0) 60%),radial-gradient(700px 420px at 100% 0%,#fff1ec 0%,rgba(255,241,236,0) 55%),var(--white)}
.hero-inner{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;background:#fff;border:1px solid var(--line);box-shadow:0 4px 14px rgba(122,10,22,.05);color:var(--brand-deep);font-size:13.5px;font-weight:600;padding:8px 16px;border-radius:999px;margin-bottom:18px}
.eyebrow > * + *{margin-left:10px}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:#2fbf71;box-shadow:0 0 0 4px rgba(47,191,113,.15)}
.hero h1{font-size:44px;font-size:clamp(32px,4.6vw,52px);line-height:1.22;font-weight:800;color:#262A31;letter-spacing:.5px}
.hero h1 .grad{background:linear-gradient(92deg,#c00010 12%,#ff4d4d 58%,#ff5831 112%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:var(--muted);font-size:17px;margin:14px 0 20px;max-width:540px}
.hero-sub b{color:var(--brand-deep);font-weight:600}
.hero-cta{display:flex;flex-wrap:wrap}
.hero-cta > * + *{margin-left:16px}
.hero-trust{display:flex;flex-wrap:wrap;margin-top:20px;color:#66666B;font-size:14.5px}
.hero-trust > * + *{margin-left:22px}
.hero-trust li{display:flex;align-items:center;}
.hero-trust li > * + *{margin-left:8px}
.hero-trust svg{width:17px;height:17px;color:#2fbf71}

/* Hero 右侧软件演示卡片 */
.hero-visual{position:relative}
.app-card{border-radius:20px;background:#82201c;padding:18px;box-shadow:0 34px 80px rgba(96,5,14,.45);transform:perspective(1200px) rotateY(-4deg) rotateX(2deg)}
.app-top{display:flex;align-items:center;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.12)}
.app-top > * + *{margin-left:10px}
.app-top .dots{display:flex;}
.app-top .dots > * + *{margin-left:6px}
.app-top .dots i{width:10px;height:10px;border-radius:50%}
.app-top .dots i:nth-child(1){background:#ff5f57}.app-top .dots i:nth-child(2){background:#febc2e}.app-top .dots i:nth-child(3){background:#28c840}
.app-top span{color:rgba(255,255,255,.85);font-size:13px;margin-left:6px;font-weight:600}
.app-top .tag{margin-left:auto;font-size:11.5px;color:#ffffff;background:rgba(255,88,49,.16);padding:3px 10px;border-radius:999px;border:1px solid rgba(255,88,49,.45)}
.app-body{display:grid;grid-template-columns:46px 1fr;gap:14px;padding-top:14px}
.app-side{display:flex;flex-direction:column;}
.app-side > * + *{margin-top:8px}
.app-side i{height:22px;border-radius:6px;background:rgba(255,255,255,.09)}
.app-side i.on{background:rgba(255,255,255,.24)}
.app-main{background:#f8f9fb;border-radius:12px;padding:16px}
.app-kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px}
.kpi{background:#fff;border:1px solid #f0dfe3;border-radius:10px;padding:10px 12px}
.kpi b{display:block;font-size:15px;color:#82201c}
.kpi span{font-size:11px;color:#99999B}
.kpi.up b{color:#ff5831}
.kpi.down b{color:#2fbf71}
.chart-title{font-size:12px;color:#66666B;margin:4px 0 10px;font-weight:600}
.bars{display:flex;align-items:flex-end;height:64px;padding-bottom:0}
.bars > * + *{margin-left:7px}
.bars i{flex:1;border-radius:5px 5px 2px 2px;background:linear-gradient(180deg,#ff8478,#d40012)}
.bars i.hl{background:linear-gradient(180deg,#ffb199,#ff5831)}
.bars i:nth-child(1){height:46%}.bars i:nth-child(2){height:62%}.bars i:nth-child(3){height:40%}.bars i:nth-child(4){height:72%}.bars i:nth-child(5){height:58%}.bars i:nth-child(6){height:88%}
.float-card{position:absolute;background:#fff;border-radius:14px;box-shadow:0 18px 44px rgba(122,10,22,.18);padding:14px 16px;display:flex;align-items:center;font-size:13.5px;color:#33333B;border:1px solid #f0dfe3}
.float-card > * + *{margin-left:11px}
.float-card .ic{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex:none}
.float-card svg{width:19px;height:19px}
.float-card b{display:block;color:#82201c;font-size:13.5px}
.f1{top:-26px;left:-38px;animation:floaty 5s ease-in-out infinite}
.f2{bottom:-24px;right:-18px;animation:floaty 5s ease-in-out 2.5s infinite}
.f1 .ic{background:#ffe3e9;color:var(--brand)}
.f2 .ic{background:var(--brand-50);color:var(--brand)}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

/* ---------- 数据条 ---------- */
.stat-strip{background:var(--brand-ink);color:#fff;padding:20px 0;position:relative;z-index:2}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat-grid .num{font-size:34px;font-weight:800;color:#fff;line-height:1.2}
.stat-grid .num em{font-style:normal;color:#ff5831}
.stat-grid .lab{font-size:13.5px;color:#f6c6cd;margin-top:4px}

/* ---------- 通用卡片 ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px;transition:all .3s ease;position:relative;overflow:hidden}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:#f4a7b2}
.card .ic{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:11px}
.card .ic svg{width:26px;height:26px}
.card h3{font-size:18.5px;margin-bottom:8px}
.card p{font-size:14.5px;color:var(--muted)}
.ic-blue{background:var(--brand-50);color:var(--brand)}
.ic-orange{background:#ffeae6;color:#ee4017}
.ic-green{background:#e5f6ec;color:#12925a}
.ic-purple{background:#ece7f9;color:#6b52c9}

/* ---------- 产品中心 ---------- */
#products{background:var(--bg-soft)}
.product-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.p-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px 18px;transition:all .3s ease;display:flex;flex-direction:column}
.p-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.p-head{display:flex;align-items:flex-start;margin-bottom:10px}
.p-head > * + *{margin-left:12px}
.p-logo{width:58px;height:58px;border-radius:15px;flex:none;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:19px}
.p-logo svg{width:28px;height:28px}
.lg-blue{background:linear-gradient(135deg,#ff5a53,#f5222f)}
.lg-orange{background:linear-gradient(135deg,#ff9a4d,#ee4017)}
.lg-green{background:linear-gradient(135deg,#4cc98a,#1e9e5a)}
.lg-purple{background:linear-gradient(135deg,#9d8bff,#6b52c9)}
.lg-navy{background:linear-gradient(135deg,#5292e5,#3d5cc7)}
.lg-cyan{background:linear-gradient(135deg,#31c2c4,#0da5ca)}
.p-name{font-size:22px;font-weight:800;color:#262A31;display:flex;align-items:center;flex-wrap:wrap}
.p-name > * + *{margin-left:10px}
.p-tag{font-size:11.5px;font-weight:600;color:var(--brand);background:var(--brand-50);border:1px solid #f8b9c3;padding:2px 10px;border-radius:999px}
.p-fit{font-size:13px;color:#66666B;margin-top:3px}
.p-list{margin:5px 0 12px;display:grid;gap:7px}
.p-list li{display:flex;font-size:14.5px;color:#3D3D3D;align-items:flex-start}
.p-list li > * + *{margin-left:10px}
.p-list svg{width:17px;height:17px;color:#2fbf71;flex:none;margin-top:4px}
.p-card .btn{margin-top:auto;align-self:flex-start}
.more-row{display:flex;flex-wrap:wrap;justify-content:center;margin-top:22px}
.more-row > * + *{margin-left:10px}
.chip{background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 20px;font-size:14px;color:#66666B;display:inline-flex;align-items:center}
.chip > * + *{margin-left:8px}
.chip b{color:var(--brand-deep)}
.chip svg{width:15px;height:15px;color:var(--accent)}

/* ---------- 服务 ---------- */
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.s-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px;position:relative;transition:all .3s}
.s-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;border-radius:4px 0 0 4px;background:transparent;transition:.3s}
.s-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.s-card:hover::before{background:var(--brand)}
.s-num{font-size:13px;font-weight:700;color:#9AA0A8;letter-spacing:1px}
.s-card .ic{width:48px;height:48px;border-radius:13px;display:flex;align-items:center;justify-content:center;margin:8px 0 10px}
.s-card .ic svg{width:24px;height:24px}
.s-card h3{font-size:18px;margin-bottom:10px}
.s-card ul{display:grid;gap:7px}
.s-card ul li{font-size:14px;color:var(--muted);padding-left:18px;position:relative}
.s-card ul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--accent)}

/* ---------- 为什么选择 ---------- */
#why{background:var(--bg-soft)}
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.reasons{display:grid;gap:11px}
.reason{display:flex;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 18px;transition:.3s}
.reason > * + *{margin-left:14px}
.reason:hover{box-shadow:var(--shadow);border-color:#f4a7b2;transform:translateX(4px)}
.reason .ic{width:46px;height:46px;border-radius:12px;flex:none;display:flex;align-items:center;justify-content:center}
.reason .ic svg{width:23px;height:23px}
.reason h3{font-size:17px;margin-bottom:5px}
.reason p{font-size:14px;color:var(--muted)}
.promise-card{background:var(--brand-ink);border-radius:20px;padding:24px 24px;color:#fff;position:relative;overflow:hidden}
.promise-card::after{content:"";position:absolute;right:-70px;top:-70px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.05)}
.promise-card::before{content:"";position:absolute;right:40px;bottom:-90px;width:180px;height:180px;border-radius:50%;background:rgba(255,88,49,.16)}
.promise-card h3{color:#fff;font-size:22px;margin-bottom:6px}
.promise-card .sub{color:#f6c6cd;font-size:14.5px;margin-bottom:14px}
.promise{display:flex;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.promise > * + *{margin-left:12px}
.promise:last-child{border-bottom:none;padding-bottom:0}
.promise .ic{width:42px;height:42px;border-radius:11px;background:rgba(255,255,255,.09);display:flex;align-items:center;justify-content:center;color:#ff5831;flex:none}
.promise .ic svg{width:21px;height:21px}
.promise b{display:block;color:#fff;font-size:15.5px;margin-bottom:2px}
.promise span{font-size:13.5px;color:#f6c6cd;line-height:1.6}

/* ---------- 服务流程 ---------- */
.process-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;counter-reset:step}
.step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 10px;text-align:center;position:relative;transition:.3s}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#f4a7b2}
.step .dot-n{width:32px;height:32px;margin:0 auto 7px;border-radius:50%;background:var(--brand-50);color:var(--brand);font-weight:800;font-size:14px;display:flex;align-items:center;justify-content:center;position:relative}
.step:not(:last-child) .dot-n::after{content:"";position:absolute;left:calc(50% + 26px);width:calc(100% - 26px);top:50%;height:1.5px;background:repeating-linear-gradient(90deg,var(--line) 0 5px,transparent 5px 9px)}
.step h3{font-size:15.5px;margin-bottom:6px}
.step p{font-size:12.5px;color:var(--muted);line-height:1.55}

/* ---------- 场景 ---------- */
#scenarios{background:var(--bg-soft)}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.scene{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 18px;transition:.3s;display:flex;flex-direction:column}
.scene:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.scene .who{font-size:12.5px;font-weight:600;color:var(--accent-deep);background:var(--accent-50);display:inline-block;padding:3px 10px;border-radius:999px;align-self:flex-start;margin-bottom:10px}
.scene h3{font-size:20px;margin-bottom:10px}
.scene p{font-size:14.5px;color:var(--muted);margin-bottom:16px}
.scene .btns{display:flex;align-items:center;margin-top:auto}
.scene .btns > * + *{margin-left:16px}
.scene .btns a{font-weight:600;color:var(--brand);display:inline-flex;align-items:center;font-size:14.5px}
.scene .btns a > * + *{margin-left:6px}
.scene .btns svg{width:16px;height:16px;transition:transform .25s}
.scene:hover .btns a svg{transform:translateX(4px)}

/* ---------- 关于 ---------- */
#about .about-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.about-brand{background:linear-gradient(150deg,#7c1821,#d8333c 55%,#ff5c4d);border-radius:20px;color:#fff;padding:30px 32px;min-height:280px;display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden}
.about-brand::after{content:"";position:absolute;width:280px;height:280px;border-radius:50%;border:1px dashed rgba(255,255,255,.2);right:-70px;bottom:-90px}
.about-brand .big{font-size:44px;font-weight:800;letter-spacing:2px;margin-bottom:6px}
.about-brand .en{font-size:13px;letter-spacing:5px;color:#ffc9cf;text-transform:uppercase}
.about-brand p{font-size:14.5px;color:#ffe6ea;margin-top:26px;max-width:340px;line-height:1.9}
.about-text h3{font-size:20px;margin:0 0 8px}
.about-text p{color:var(--muted);font-size:15px;margin-bottom:10px}
.about-text p b{color:var(--brand-deep)}
.values{display:flex;flex-wrap:wrap;margin-top:13px}
.values > * + *{margin-left:8px}
.values li{font-size:13.5px;font-weight:600;color:var(--brand-deep);background:var(--brand-50);border:1px solid #f8b9c3;border-radius:999px;padding:7px 16px;display:flex;align-items:center;}
.values li > * + *{margin-left:8px}
.values svg{width:14px;height:14px;color:var(--accent)}

/* ---------- 常见问题 FAQ ---------- */
#faq{background:var(--bg-soft)}
.faq-list{max-width:880px;margin:0 auto;display:grid;gap:11px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;transition:.28s;overflow:hidden}
.faq-item:hover{border-color:#f4a7b2}
.faq-item[open]{box-shadow:var(--shadow);border-color:#f4a7b2}
.faq-item summary{display:flex;align-items:flex-start;padding:16px 18px;cursor:pointer;list-style:none;user-select:none}
.faq-item summary > * + *{margin-left:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus{outline:2px solid var(--brand);outline-offset:-4px;border-radius:14px}
.faq-item summary:focus{outline:2px solid var(--brand);outline-offset:-4px;border-radius:14px}
.faq-item summary:focus-visible{outline:2px solid var(--brand);outline-offset:-4px;border-radius:14px}
.faq-item summary h3{flex:1;font-size:16.5px;line-height:1.6;color:#262A31;font-weight:700;transition:color .22s}
.faq-item:hover summary h3,.faq-item[open] summary h3{color:var(--brand)}
.faq-item summary::after{content:"";flex:none;width:24px;height:24px;margin-top:2px;border-radius:50%;background:var(--brand-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%23f5222f' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px 8px no-repeat;transition:transform .3s,background-color .3s}
.faq-item[open] summary::after{transform:rotate(180deg);background-color:var(--brand);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")}
.faq-item[open] summary{padding-bottom:12px}
.faq-a{padding:0 18px 18px}
.faq-a p{font-size:14.8px;color:var(--muted);line-height:1.85;margin:0 0 9px}
.faq-a p:last-child{margin-bottom:0}
.faq-a ul{display:grid;gap:7px;margin:2px 0 11px}
.faq-a li{position:relative;padding-left:17px;font-size:14.5px;color:var(--muted);line-height:1.75}
.faq-a li::before{content:"";position:absolute;left:1px;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand-2)}
.faq-a b{color:var(--brand-deep);font-weight:600}
.faq-cta{max-width:880px;margin:20px auto 0;text-align:center;font-size:14.5px;color:var(--muted)}
.faq-cta span{display:block}
.faq-cta .btn{margin-top:12px}

/* ---------- 联系我们 ---------- */
#contact{background:linear-gradient(160deg,#6c1219 0%,#ab2129 55%,#d8333c 100%);position:relative;overflow:hidden}
#contact::before,#contact::after{content:"";position:absolute;border-radius:50%;border:1.5px dashed rgba(255,255,255,.14)}
#contact::before{width:420px;height:420px;left:-160px;top:-160px}
#contact::after{width:560px;height:560px;right:-220px;bottom:-220px}
.contact-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:start;position:relative;z-index:1}
#contact .kicker{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.2);color:#ffffff}
#contact h2{color:#fff}
#contact .section-head .lead{color:#f3c2c8}
.contact-items{display:grid;gap:10px;margin-top:18px}
.c-item{display:flex;align-items:flex-start;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:12px 14px;backdrop-filter:blur(6px)}
.c-item > * + *{margin-left:12px}
.qr-card{margin-top:10px;display:flex;align-items:center;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:14px;padding:12px 16px;backdrop-filter:blur(6px)}
.qr-card > * + *{margin-left:16px}
.qr-card img{width:104px;height:104px;border-radius:12px;flex:none;display:block}
.qr-card b{display:block;color:#fff;font-size:16px;margin-bottom:5px}
.qr-card span{display:block;color:rgba(255,255,255,.78);font-size:13.5px;line-height:1.65}
.c-item .ic{width:40px;height:40px;border-radius:11px;background:rgba(255,255,255,.12);color:#ffffff;display:flex;align-items:center;justify-content:center;flex:none}
.c-item .ic svg{width:20px;height:20px}
.c-item b{display:block;color:#fff;font-size:14px;margin-bottom:2px}
.c-item span{color:#f3c2c8;font-size:13.5px}
.c-item .ph{color:#ffd9de}
.form-card{background:#fff;border-radius:18px;padding:24px;box-shadow:var(--shadow-lg)}
.form-card h3{font-size:21px;margin-bottom:6px}
.form-card .fsub{color:var(--muted);font-size:13.5px;margin-bottom:14px}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.f-group{margin-bottom:11px}
.f-group label{display:block;font-size:13.5px;font-weight:600;color:#33333B;margin-bottom:7px}
.f-group label em{color:#f5222f;font-style:normal}
.f-group input,.f-group select,.f-group textarea{width:100%;border:1.5px solid var(--line);border-radius:11px;padding:12px 14px;font-size:14.5px;font-family:inherit;color:var(--ink);background:#fff;outline:none;transition:.25s;appearance:none}
.f-group textarea{resize:vertical;min-height:92px}
.f-group select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%2366666B' stroke-width='2'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.f-group input:focus,.f-group select:focus,.f-group textarea:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(230,0,18,.1)}
.form-card .btn{width:100%;margin-top:6px}
.form-note{font-size:12.5px;color:#99999B;text-align:center;margin-top:14px;line-height:1.7}
.msg-ok{display:none;margin-top:14px;background:#e7f6ec;border:1px solid #bfe6cf;color:#14794a;border-radius:12px;padding:13px 16px;font-size:14px;text-align:center}
.msg-ok.show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:#5e0f16;color:#e9b4bb;padding:44px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px;padding-bottom:30px}
.site-footer h4{color:#fff;font-size:15.5px;margin-bottom:12px;font-weight:700}
.foot-grid a{display:block;font-size:14px;margin-bottom:11px;transition:.2s}
.foot-grid a:hover{color:#ff5831}
.foot-desc{font-size:14px;line-height:1.9;margin:10px 0 14px}
.foot-contact li{display:flex;font-size:14px;margin-bottom:8px;align-items:flex-start}
.foot-contact li > * + *{margin-left:10px}
.foot-contact svg{width:16px;height:16px;color:#ff5831;flex:none;margin-top:4px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.09);padding:20px 0;font-size:13px;color:#d3a0a8}
.foot-bottom .container{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center}
.foot-bottom .container > * + *{margin-left:26px}
.foot-bottom .disc{width:100%;margin-top:6px;font-size:12px;color:#bd8d95;line-height:1.7}
.foot-bottom a{color:#f0c3c9;text-decoration:none;border-bottom:1px solid rgba(240,195,201,.45);transition:color .2s,border-color .2s}
.foot-bottom a:hover{color:#fff;border-bottom-color:#fff}

/* ---------- 动画 ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:1279px){
  .nav-links > * + *{margin-left:13px;font-size:14px}
  .nav-tels .nav-tel{font-size:15px}
}
@media(max-width:1180px){
  .nav-links{position:fixed;left:0;right:0;top:76px;background:#fff;flex-direction:column;padding:10px 24px 22px;}
  .nav-links > * + *{margin-left:0;margin-top:0}
  .nav-links{border-bottom:1px solid var(--line);box-shadow:0 20px 40px rgba(122,10,22,.12);display:none;z-index:99}
  .nav-links.open{display:flex}
  .nav-links a{width:100%;padding:13px 0;border-bottom:1px solid #eceef1}
  .nav-links a::after{display:none}
  .nav-toggle{display:flex}
}
@media(max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:70px}
  .hero-visual{max-width:560px;margin:0 auto;width:100%}
  .product-grid{grid-template-columns:1fr}
  .cards,.service-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(3,1fr)}
  .scene-grid{grid-template-columns:1fr 1fr}
  .why-grid,.about-grid,.contact-grid{grid-template-columns:1fr;gap:44px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  section{padding:44px 0}
  .nav-tel{display:none}
  .cards,.service-grid,.scene-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr 1fr}
  .step:nth-child(even) .dot-n::after{display:none}
  .f1{left:6px;top:-22px}
  .f2{right:4px}
  .f-row{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .stat-grid .num{font-size:27px}
  .form-card{padding:26px 20px}
  .hero{padding:42px 0 54px}
  .faq-item summary{padding:14px 15px}
  .faq-item[open] summary{padding-bottom:10px}
  .faq-item summary h3{font-size:15.5px}
  .faq-a{padding:0 15px 16px}
}

/* ---------- 产品卡操作区（主页产品中心用） ---------- */
.p-actions{display:flex;align-items:center;flex-wrap:wrap;margin-top:auto}
.p-actions > * + *{margin-left:16px}
.p-card .p-actions .btn{margin-top:0;align-self:auto}
.p-more{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center}
.p-more > * + *{margin-left:5px;transition:margin .25s}
.p-more:hover > * + *{margin-left:9px}
.p-name a{transition:color .2s}
.p-name a:hover{color:var(--brand)}

/* ---------- 通用文字内链 ---------- */
.xlink{font-size:14px;font-weight:600;color:var(--brand);transition:color .2s}
.xlink:hover{color:var(--brand-deep)}
.p-note .xlink{font-size:13.5px}

/* ---------- 产品中心的「选型对比」入口条 ---------- */
.cmp-entry{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;background:linear-gradient(120deg,#8c1620 0%,#c31622 55%,#f5222f 100%);border-radius:18px;padding:22px 26px;margin-top:20px;box-shadow:0 18px 44px rgba(122,10,22,.18)}
.cmp-entry > * + *{margin-left:22px}
.cmp-entry b{display:block;color:#fff;font-size:19px;margin-bottom:6px}
.cmp-entry span{color:#f6c6cd;font-size:14.5px;line-height:1.7;display:block;max-width:620px}
.cmp-entry .btn{background:#fff;color:var(--brand-deep);flex:none}
.cmp-entry .btn:hover{background:#fff5f6;transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.18)}
@media(max-width:760px){
  .cmp-entry{padding:20px 18px}
  .cmp-entry .btn{width:100%}
}

/* ---------- 404 页面 ---------- */
.nf-wrap{padding:84px 0 96px;background:var(--bg-soft)}
.nf-inner{max-width:660px;margin:0 auto;text-align:center}
.nf-code{font-size:104px;font-weight:800;line-height:1;letter-spacing:-2px;color:var(--brand-50);margin-bottom:16px}
.nf-title{font-size:26px;font-weight:700;margin:0 0 14px}
.nf-text{font-size:15px;color:var(--muted);margin:0 0 26px}
.nf-links{display:flex;flex-wrap:wrap;justify-content:center;margin-bottom:30px}
.nf-links > * + *{margin-left:10px}
.nf-link{display:inline-block;padding:10px 20px;border:1px solid var(--line);border-radius:999px;font-size:14px;font-weight:600;color:var(--ink);background:#fff;transition:.22s}
.nf-link:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow)}
.nf-tel{font-size:14px;margin-bottom:0}
.nf-tel a{font-size:20px;font-weight:700;color:var(--brand);text-decoration:none}
.nf-tel a:hover{color:var(--brand-deep)}
@media(max-width:760px){
  .nf-wrap{padding:56px 0 64px}
  .nf-code{font-size:76px}
  .nf-title{font-size:21px}
}