/* ============================================================
   FLOWPULSE 多页面官网 - 全站共享样式
   ============================================================ */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --navy:#0A2036;--navy-2:#0F2C49;--steel:#1B5E93;--blue:#2377B4;
  --accent:#0E9CB8;--accent-ink:#0B7D95;--ink:#16263A;--body:#3E5468;--muted:#6E8296;
  --bg:#F4F8FB;--bg2:#E9F1F7;--line:#D9E4EE;--card:#FFFFFF;
  --shadow:0 10px 30px rgba(10,32,54,.08);--shadow-lg:0 24px 60px rgba(10,32,54,.16);
  --radius:14px;--danger:#D64545;
  --font-display:"Barlow Condensed","Barlow","Noto Sans SC",system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","Barlow",system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);color:var(--body);background:var(--bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--ink);font-weight:600;line-height:1.18}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
::selection{background:var(--accent);color:#fff}

/* 流动线签名元素 */
.flowline{height:2px;width:120px;background:repeating-linear-gradient(90deg,var(--accent) 0 12px,transparent 12px 24px);background-size:24px 2px;animation:flowmove 1.4s linear infinite;margin:18px 0 0}
@keyframes flowmove{to{background-position:24px 0}}
.flowline--center{margin-left:auto;margin-right:auto}

/* ============ Header ============ */
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,32,54,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08)}
.topbar{background:var(--navy-2);border-bottom:1px solid rgba(255,255,255,.07)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:38px;font-size:13px;color:rgba(255,255,255,.78)}
.topbar a{color:rgba(255,255,255,.85);transition:color .2s;white-space:nowrap}
.topbar a:hover{color:var(--accent)}
.topbar .tb-right{display:flex;align-items:center;gap:18px}
.tb-phone{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:#fff!important;white-space:nowrap}
.tb-phone svg{width:15px;height:15px;color:var(--accent)}
.nav{display:flex;align-items:center;gap:24px;height:70px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;flex:none}
.brand-mark{width:38px;height:38px;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--steel));display:grid;place-items:center;color:#fff;flex:none}
.brand-name{font-family:var(--font-display);font-size:21px;font-weight:700;letter-spacing:.5px;line-height:1.1}
.brand-name small{display:block;font-family:var(--font-body);font-size:10px;font-weight:400;letter-spacing:2px;color:rgba(255,255,255,.7)}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;list-style:none;flex-wrap:nowrap}
.nav-links li{flex:none}
.nav-links a{color:rgba(255,255,255,.82);font-size:15px;font-weight:500;position:relative;padding:6px 0;transition:color .2s;white-space:nowrap}
.nav-links a:hover{color:#fff}
.nav-links a.active{color:var(--accent)}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);transition:width .25s}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-phone{display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:700;font-size:15.5px;letter-spacing:.3px;padding:9px 16px;border:1px solid rgba(255,255,255,.28);border-radius:999px;transition:.2s}
.nav-phone:hover{background:rgba(255,255,255,.1);border-color:var(--accent)}
.nav-phone svg{width:17px;height:17px;color:var(--accent)}
.lang-toggle{display:flex;border:1px solid rgba(255,255,255,.28);border-radius:999px;overflow:hidden}
.lang-toggle button{background:transparent;border:0;color:rgba(255,255,255,.75);font-size:13px;font-weight:600;padding:6px 13px;cursor:pointer;font-family:var(--font-body)}
.lang-toggle button.active{background:var(--accent);color:#fff}
.burger{display:none;background:none;border:0;width:42px;height:42px;cursor:pointer;flex-direction:column;justify-content:center;gap:5px;align-items:center}
.burger span{display:block;width:22px;height:2px;background:#fff;transition:.3s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ Buttons ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-weight:600;font-size:16px;padding:14px 28px;border-radius:999px;cursor:pointer;border:0;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 12px 30px rgba(14,156,184,.4)}
.btn-primary:hover{background:var(--accent-ink)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.45);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.18)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-2)}
.btn-line{background:#fff;color:var(--accent-ink);border:1px solid var(--accent)}
.btn-line:hover{background:rgba(14,156,184,.08)}

/* ============ Hero ============ */
.hero{position:relative;min-height:92vh;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,32,54,.5),rgba(10,32,54,.86)),url('https://aka.doubaocdn.com/s/QtFVpV1MUJ') center/cover no-repeat}
.hero-inner{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:120px 24px 90px;width:100%}
.hero-kicker{display:inline-flex;align-items:center;gap:10px;color:var(--accent);font-weight:600;font-size:14px;letter-spacing:2px;text-transform:uppercase}
.hero-kicker::before{content:"";width:34px;height:2px;background:var(--accent)}
.hero h1{font-size:clamp(40px,6vw,74px);font-weight:700;color:#fff;max-width:16ch;letter-spacing:.5px;text-wrap:pretty}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{max-width:62ch;color:rgba(255,255,255,.88);font-size:clamp(16px,1.5vw,19px);margin-top:22px;font-weight:300}
.hero-ctas{display:flex;flex-wrap:wrap;gap:16px;margin-top:34px}
.hero-phone{display:inline-flex;align-items:center;gap:12px;margin-top:26px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);border-radius:999px;padding:12px 22px;color:#fff;backdrop-filter:blur(6px)}
.hero-phone svg{width:20px;height:20px;color:var(--accent)}
.hero-phone .lbl{font-size:13px;color:rgba(255,255,255,.72);margin-right:2px}
.hero-phone b{font-size:20px;letter-spacing:.5px}
.hero-phone a{color:#fff}
.hero-phone a:hover{color:var(--accent)}
.hero-phone .sep{margin:0 6px;opacity:.5}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:36px}
.hero-badges span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.85);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);padding:8px 15px;border-radius:999px;backdrop-filter:blur(6px)}
.hero-badges svg{width:16px;height:16px;color:var(--accent);flex:none}
.hero-pipe{position:absolute;left:0;right:0;bottom:0;height:90px;background:repeating-linear-gradient(90deg,var(--accent) 0 10px,rgba(14,156,184,0) 10px 30px);opacity:.25;animation:flowmove 2.4s linear infinite;mask-image:linear-gradient(90deg,transparent,#000 20%,#000 80%,transparent)}

/* ============ Stats ============ */
.stats{background:var(--navy);border-top:1px solid rgba(255,255,255,.06)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:44px 0}
.stat{text-align:center}
.stat b{display:block;font-family:var(--font-display);font-size:44px;font-weight:700;color:#fff;line-height:1}
.stat b span{color:var(--accent)}
.stat small{display:block;margin-top:8px;color:rgba(255,255,255,.62);font-size:13.5px;letter-spacing:.5px}

/* ============ Section head ============ */
.section{padding:88px 0}
.sec-head{max-width:760px;margin-bottom:52px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-weight:700;font-size:13px;letter-spacing:2.5px;text-transform:uppercase}
.sec-eyebrow::before{content:"";width:26px;height:2px;background:var(--accent)}
.sec-head.center .sec-eyebrow::before{display:none}
.sec-head h2{font-size:clamp(30px,3.6vw,44px);font-weight:700;margin-top:14px;text-wrap:pretty}
.sec-head p{margin-top:16px;color:var(--muted);font-size:17px;font-weight:300}

/* ============ 页面横幅（内页顶部） ============ */
.page-banner{position:relative;background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 55%,var(--steel) 120%);color:#fff;padding:72px 0 56px;overflow:hidden}
.page-banner::after{content:"";position:absolute;left:0;right:0;bottom:0;height:56px;background:repeating-linear-gradient(90deg,var(--accent) 0 8px,rgba(14,156,184,0) 8px 26px);opacity:.22;animation:flowmove 2.2s linear infinite;mask-image:linear-gradient(90deg,transparent,#000 15%,#000 85%,transparent)}
.page-banner h1{color:#fff;font-size:clamp(30px,4vw,44px);font-weight:700}
.page-banner .sub{color:rgba(255,255,255,.78);font-size:16px;margin-top:12px;max-width:70ch;font-weight:300}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.66);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.82)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb svg{width:13px;height:13px;opacity:.7}

/* ============ 侧栏布局（产品中心 / 型号页） ============ */
.layout{display:grid;grid-template-columns:250px 1fr;gap:36px;align-items:start}
.aside{position:sticky;top:130px}
.catalog{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 18px;box-shadow:var(--shadow)}
.catalog h3{font-size:18px;margin-bottom:14px;padding-left:6px;display:flex;align-items:center;gap:8px}
.catalog h3 svg{width:18px;height:18px;color:var(--accent)}
.catalog .cgroup{margin-bottom:14px}
.catalog .cg-title{font-size:12.5px;font-weight:700;letter-spacing:1px;color:var(--muted);padding:2px 8px;margin-bottom:6px}
.catalog a{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--body);padding:8px 10px;border-radius:8px;transition:.18s}
.catalog a:hover{background:var(--bg2);color:var(--accent-ink)}
.catalog a.active{background:var(--navy);color:#fff;font-weight:600}
.catalog a.active:hover{background:var(--navy);color:#fff}
.catalog a svg{width:13px;height:13px;opacity:.7;flex:none}

/* ============ 产品/品类卡片 ============ */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.prod-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .25s,box-shadow .25s}
.prod-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.prod-card .media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg2)}
.prod-card .media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.prod-card:hover .media img{transform:scale(1.05)}
.prod-card .badge{position:absolute;top:14px;left:14px;background:var(--navy);color:#fff;font-size:12px;font-weight:600;letter-spacing:1px;padding:5px 12px;border-radius:999px;text-transform:uppercase}
.prod-card .body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.prod-card h3{font-size:22px;font-weight:600}
.prod-card p{font-size:14.5px;color:var(--body)}
.prod-card .spec{margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);font-size:13px;color:var(--steel);display:flex;flex-wrap:wrap;gap:6px 14px}
.prod-card .spec span{display:inline-flex;align-items:center;gap:6px}
.prod-card .spec svg{width:13px;height:13px;color:var(--accent);flex:none}
.prod-card .link{margin-top:14px;display:inline-flex;align-items:center;gap:6px;color:var(--accent);font-weight:600;font-size:14px}
.prod-card .link svg{width:15px;height:15px;transition:transform .2s}
.prod-card:hover .link svg{transform:translateX(3px)}

/* ============ 型号卡片（型号页） ============ */
.model-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px}
.model-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;position:relative;transition:box-shadow .2s,transform .2s;display:flex;flex-direction:column}
.model-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.model-card .mname{font-family:var(--font-display);font-size:20px;font-weight:700;color:var(--navy);letter-spacing:.3px;line-height:1.3}
.model-card .no{font-size:13px;color:var(--muted);font-weight:600;margin-top:6px;letter-spacing:.5px;font-family:Consolas,"Courier New",monospace}
.model-card .mspec{margin-top:14px;display:grid;gap:7px;padding-top:14px;border-top:1px dashed var(--line)}
.model-card .mspec div{display:flex;justify-content:space-between;gap:10px;font-size:13.5px}
.model-card .mspec .k{color:var(--muted);flex:none}
.model-card .mspec .v{color:var(--ink);text-align:right}
.model-card .inquiry{margin-top:auto;padding-top:18px}
.model-card .inquiry a{font-size:14px;font-weight:600;color:#fff;background:var(--accent);padding:9px 16px;border-radius:999px;display:inline-flex;align-items:center;gap:6px;transition:background .2s}
.model-card .inquiry a:hover{background:var(--accent-ink)}
.placeholder-note{margin-top:18px;background:#FFF6E9;border:1px solid #F0D9A8;color:#8A6420;font-size:13.5px;border-radius:10px;padding:12px 18px}

/* ============ 型号页品类介绍 ============ */
.prod-feature{display:grid;grid-template-columns:380px 1fr;gap:32px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);margin-bottom:44px}
.prod-feature .media{border-radius:10px;overflow:hidden}
.prod-feature .media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.prod-feature .fcopy h4{font-size:20px;margin-bottom:14px}
.prod-feature .spec{display:flex;flex-wrap:wrap;gap:10px 18px;font-size:13.5px;color:var(--steel)}
.prod-feature .spec span{display:inline-flex;align-items:center;gap:6px}
.prod-feature .spec svg{width:13px;height:13px;color:var(--accent)}
.models-title{font-size:26px;margin:8px 0 6px}
@media (max-width:760px){ .prod-feature{grid-template-columns:1fr} }

/* ============ 选型 ============ */
.sel-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
.sel-tab{border:1px solid var(--line);background:#fff;color:var(--body);font-family:var(--font-body);font-size:14.5px;font-weight:500;padding:11px 20px;border-radius:999px;cursor:pointer;transition:.2s}
.sel-tab:hover{border-color:var(--accent);color:var(--accent-ink)}
.sel-tab.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.sel-panel{display:none;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}
.sel-panel.active{display:grid}
.sel-panels{min-height:200px}
.sel-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;position:relative;transition:box-shadow .2s}
.sel-item:hover{box-shadow:var(--shadow)}
.sel-item .tier{position:absolute;top:-12px;left:22px;font-size:12px;font-weight:700;letter-spacing:1px;padding:4px 14px;border-radius:999px;color:#fff}
.tier-core{background:var(--accent)}
.tier-alt{background:var(--steel)}
.sel-item h4{font-size:20px;margin-top:6px}
.sel-item p{font-size:14px;margin-top:10px}
.tips{margin-top:60px;background:var(--navy);border-radius:var(--radius);padding:40px;color:#fff}
.tips h3{color:#fff;font-size:26px;margin-bottom:8px}
.tips .sub{color:rgba(255,255,255,.65);font-size:14.5px;margin-bottom:26px}
.tips-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 28px}
.tips-grid li{display:flex;gap:14px;font-size:14.5px;color:rgba(255,255,255,.88)}
.tips-grid svg{width:20px;height:20px;flex:none;color:var(--accent);margin-top:3px}

/* ============ 案例 ============ */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.case-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:transform .25s,box-shadow .25s}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.case-media{aspect-ratio:16/10;overflow:hidden}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.case-card:hover .case-media img{transform:scale(1.05)}
.case-body{padding:22px 24px 26px}
.case-body h3{font-size:21px}
.case-body p{font-size:14px;margin-top:8px}
.case-prod{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.case-prod span{font-size:12px;background:var(--bg2);color:var(--steel);border:1px solid var(--line);padding:4px 12px;border-radius:999px}

/* ============ 关于 ============ */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.about-media{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.about-media img{width:100%;height:100%;object-fit:cover}
.about-media .badge{position:absolute;left:20px;bottom:20px;background:rgba(10,32,54,.88);color:#fff;padding:12px 20px;border-radius:12px;font-size:14px;backdrop-filter:blur(6px)}
.about-copy h2{font-size:clamp(28px,3.4vw,40px);font-weight:700}
.about-copy>p{margin-top:18px;color:var(--body);font-size:16px;font-weight:300}
.about-points{margin-top:30px;display:grid;gap:22px}
.apoint{display:flex;gap:18px}
.apoint .ic{width:52px;height:52px;flex:none;border-radius:13px;background:#fff;border:1px solid var(--line);display:grid;place-items:center;color:var(--accent);box-shadow:var(--shadow)}
.apoint .ic svg{width:26px;height:26px}
.apoint h4{font-size:18px}
.apoint p{font-size:14px;color:var(--muted);margin-top:4px}

/* ============ 联系 ============ */
.contact{background:var(--navy);color:#fff}
.contact .sec-head h2{color:#fff}
.contact .sec-head p{color:rgba(255,255,255,.7)}
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:start}
.cform{background:#fff;border-radius:var(--radius);padding:34px;color:var(--body);box-shadow:var(--shadow-lg)}
.cform h3{font-size:24px;color:var(--ink);margin-bottom:6px}
.cform .form-sub{font-size:14px;color:var(--muted);margin-bottom:24px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink);margin-bottom:7px}
.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:14.5px;font-family:var(--font-body);color:var(--ink);background:#fff;transition:border .2s,box-shadow .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(14,156,184,.15)}
.field textarea{resize:vertical;min-height:96px}
.cform .btn{width:100%;justify-content:center;font-size:16px;padding:15px}
.cform .hint{font-size:12.5px;color:var(--muted);margin-top:14px;text-align:center}
.contact-info{display:grid;gap:22px}
.ci{display:flex;gap:16px;align-items:flex-start}
.ci .ic{width:50px;height:50px;flex:none;border-radius:13px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);display:grid;place-items:center;color:var(--accent)}
.ci .ic svg{width:24px;height:24px}
.ci b{display:block;color:#fff;font-size:16px;font-family:var(--font-display);letter-spacing:.3px}
.ci span{color:rgba(255,255,255,.72);font-size:14.5px}
.ci a{color:rgba(255,255,255,.85)}
.ci a:hover{color:var(--accent)}
.contact-extra{margin-top:30px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:22px}
.contact-extra b{color:#fff;font-family:var(--font-display);font-size:17px}
.contact-extra p{font-size:13.5px;color:rgba(255,255,255,.72);margin-top:6px}
.contact-extra ul{margin-top:12px;display:grid;gap:8px;font-size:13.5px;color:rgba(255,255,255,.82)}
.contact-extra li{display:flex;gap:10px;align-items:flex-start}
.contact-extra li svg{width:16px;height:16px;color:var(--accent);flex:none;margin-top:4px}
.cta-band{background:linear-gradient(135deg,var(--steel),var(--accent-ink));border-radius:var(--radius);padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;color:#fff}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,34px)}
.cta-band p{color:rgba(255,255,255,.85);margin-top:8px}
.cta-band .btn{background:#fff;color:var(--navy)}

/* ============ Footer ============ */
.footer{background:#071A2C;color:rgba(255,255,255,.7);padding:64px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:44px}
.footer h5{color:#fff;font-family:var(--font-display);font-size:17px;letter-spacing:.5px;margin-bottom:18px}
.footer a{display:block;font-size:14px;padding:5px 0;transition:color .2s}
.footer a:hover{color:var(--accent)}
.footer .brand-name{color:#fff}
.footer-about{font-size:14px;margin-top:16px;color:rgba(255,255,255,.62)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{display:inline;padding:0}

/* ============ Floating: WeChat / Call ============ */
.float-actions{position:fixed;right:22px;bottom:22px;z-index:90;display:flex;flex-direction:column;align-items:center;gap:12px}
.fa-btn{width:60px;height:60px;border-radius:50%;border:0;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;color:#fff;box-shadow:0 12px 30px rgba(10,32,54,.28);transition:transform .2s;font-family:inherit;position:relative}
.fa-btn:hover{transform:scale(1.08)}
.fa-btn i{font-style:normal;font-size:11px;font-weight:600;line-height:1}
.fa-call{background:linear-gradient(135deg,var(--accent),var(--steel))}
.fa-wechat{background:#07C160}
.fa-wechat:hover{background:#06b056}
.fa-tip{position:absolute;right:0;bottom:76px;width:250px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;box-shadow:0 16px 40px rgba(10,32,54,.18);opacity:0;transform:translateY(8px);pointer-events:none;transition:.22s}
.fa-tip.open{opacity:1;transform:none;pointer-events:auto}
.fa-tip b{display:block;color:var(--ink);font-size:14px;margin-bottom:6px}
.fa-tip span{display:block;font-size:13px;color:var(--body);margin-bottom:10px}
.fa-tip em{font-style:normal;font-weight:700;color:var(--accent-ink)}
.fa-tip button{background:var(--accent);color:#fff;border:0;border-radius:999px;padding:6px 16px;font-size:12.5px;font-weight:600;cursor:pointer}
.fa-tip button:hover{background:var(--accent-ink)}
@media (max-width:560px){ .fa-btn{width:54px;height:54px} .fa-btn i{display:none} }

/* ============ Reveal ============ */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* ============ Responsive ============ */
@media (max-width:1200px){
  .nav{gap:16px}
  .nav-links{gap:18px}
}
@media (max-width:1080px){
  .topbar .tb-tag{display:none}
}
@media (max-width:1024px){
  .grid3,.case-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid,.contact-grid{grid-template-columns:1fr;gap:40px}
  .layout{grid-template-columns:1fr}
  .aside{position:static}
  .catalog .cgroups{display:flex;flex-wrap:wrap;gap:6px}
  .catalog .cgroup{margin-bottom:0}
  .catalog a{display:inline-flex;padding:7px 12px}
}
@media (max-width:820px){
  .section{padding:68px 0}
  .nav-links{position:fixed;top:70px;left:0;right:0;background:var(--navy);flex-direction:column;align-items:flex-start;padding:24px 28px 34px;gap:18px;transform:translateY(-130%);transition:transform .35s;box-shadow:var(--shadow-lg)}
  .nav-links.open{transform:translateY(0)}
  .nav-links a{font-size:17px}
  .burger{display:flex}
  .nav-phone{display:none}
  .topbar .tb-tag{display:none}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:34px}
  .tips-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .grid2{grid-template-columns:1fr}
}
@media (max-width:560px){
  .grid3,.case-grid{grid-template-columns:1fr}
  .hero h1{font-size:38px}
  .footer-grid{grid-template-columns:1fr}
}