/* ===========================================================
   BathVue — site stylesheet
   Palette: Ink #0F1A24 | Cyan #14B8C4 | Deep #0E8FA8
   =========================================================== */

:root{
  --ink:#0F1A24;
  --ink-2:#1B2A36;
  --cyan:#14B8C4;
  --cyan-deep:#0E8FA8;
  --body:#3C4A56;
  --muted:#7A8A97;
  --line:#E5E9EC;
  --alt:#F6F8F9;
  --white:#fff;
  --radius:4px;
  --max:1180px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Inter","Helvetica Neue",Helvetica,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
  font-size:16px;line-height:1.65;color:var(--body);background:var(--white);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:clip;
}
@media(max-width:760px){.br-lg{display:none}}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.15;letter-spacing:-.01em;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.hero-inner>*,.split>*,.pdp-grid>*,.two-col>*,.contact-grid>*{min-width:0}

/* ---------- draft ribbon ---------- */
.draft-bar{
  position:fixed;top:0;left:0;right:0;z-index:999;height:28px;
  background:#B45309;color:#fff;font-size:11.5px;letter-spacing:.08em;
  display:flex;align-items:center;justify-content:center;gap:8px;font-weight:600;
}
body.has-draft{padding-top:28px}
body.has-draft .site-header{top:28px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);
  backdrop-filter:saturate(1.2) blur(10px);border-bottom:1px solid var(--line);
}
.header-inner{height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px}
.brand img{height:38px;width:auto}
.nav{display:flex;align-items:center;gap:34px}
.nav a{font-size:14px;font-weight:500;color:var(--ink-2);position:relative;padding:6px 0;transition:color .2s}
.nav a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--cyan);
  transition:right .28s var(--ease);
}
.nav a:hover{color:var(--ink)}
.nav a:hover::after,.nav a.active::after{right:0}
.nav a.active{color:var(--ink)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;font-size:14px;font-weight:600;letter-spacing:.01em;
  border-radius:var(--radius);border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),background .2s,color .2s,border-color .2s;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--ink-2)}
.btn-cyan{background:var(--cyan);color:#04262B}
.btn-cyan:hover{background:#19CBD9}
.btn-ghost{background:transparent;color:var(--ink);border-color:#CBD5DC}
.btn-ghost:hover{border-color:var(--ink)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-outline-light:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.header .btn{height:40px;padding:0 18px}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:4px;cursor:pointer}
.burger span{display:block;width:18px;height:1.6px;background:var(--ink);margin:4px auto}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.hero::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(1100px 500px at 78% 18%,rgba(20,184,196,.20),transparent 62%);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.02fr .98fr;
  gap:56px;align-items:center;padding:88px 0 92px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:11px;letter-spacing:.24em;
  text-transform:uppercase;color:#8FD9E1;font-weight:600;margin-bottom:22px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--cyan)}
.hero h1{color:#fff;font-size:clamp(34px,4.1vw,54px);font-weight:300;letter-spacing:-.02em}
.hero h1 b{font-weight:700}
.hero p.lead{margin-top:20px;font-size:17px;line-height:1.75;color:#B7C4CE;max-width:520px}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-media{position:relative}
.hero-media img{
  width:100%;height:auto;aspect-ratio:10/8.6;object-fit:cover;object-position:center 38%;
  border-radius:6px;box-shadow:0 30px 60px -22px rgba(0,0,0,.65);
}
.hero-media .tag{
  position:absolute;left:-14px;bottom:26px;background:#fff;color:var(--ink);
  padding:12px 16px;border-radius:4px;font-size:12px;font-weight:600;letter-spacing:.06em;
  box-shadow:0 14px 30px -12px rgba(0,0,0,.45);
}
.hero-media .tag small{display:block;font-weight:500;color:var(--muted);letter-spacing:.02em;margin-top:2px}

/* ---------- trust strip ---------- */
.trust{background:var(--ink-2);color:#C8D3DC;border-top:1px solid rgba(255,255,255,.07)}
.trust ul{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.08)}
.trust li{background:var(--ink-2);padding:26px 24px;display:flex;gap:14px;align-items:flex-start}
.trust .ico{width:30px;height:30px;flex:0 0 30px;color:var(--cyan)}
.trust b{display:block;color:#fff;font-size:14px;font-weight:600;margin-bottom:3px}
.trust span{font-size:12.5px;line-height:1.55;color:#93A3AF}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section.alt{background:var(--alt)}
.section-head{max-width:660px;margin-bottom:44px}
.section-head .kicker{
  font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--cyan-deep);
  font-weight:700;margin-bottom:14px;
}
.section-head h2{font-size:clamp(26px,3vw,38px);font-weight:600}
.section-head p{margin-top:16px;font-size:15.5px;color:var(--body)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- product cards ---------- */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.pcard{border:1px solid var(--line);border-radius:6px;overflow:hidden;background:#fff;transition:box-shadow .3s var(--ease),transform .3s var(--ease)}
.pcard:hover{box-shadow:0 24px 48px -28px rgba(15,26,36,.35);transform:translateY(-3px)}
.pcard .ph{background:#EDF1F3;aspect-ratio:4/3;overflow:hidden}
.pcard .ph img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.pcard:hover .ph img{transform:scale(1.03)}
.pcard .pb{padding:24px 24px 26px}
.pcard h3{font-size:20px;margin-bottom:8px}
.pcard .spec{font-size:12.5px;letter-spacing:.04em;color:var(--muted);margin-bottom:16px}
.pcard .meta{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--body);margin-bottom:20px}
.pcard .meta span::before{content:"·";margin-right:8px;color:var(--cyan)}
.pcard .meta span:first-child::before{content:none;margin:0}
.link-arrow{font-size:13.5px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:8px}
.link-arrow::after{content:"→";transition:transform .25s var(--ease)}
.pcard:hover .link-arrow::after{transform:translateX(4px)}

/* ---------- feature grid ---------- */
.features{display:grid;grid-template-columns:repeat(2,1fr);gap:34px 48px}
.feature{display:flex;gap:18px}
.feature .num{
  font-size:12px;font-weight:700;color:var(--cyan-deep);letter-spacing:.1em;
  border-top:2px solid var(--cyan);padding-top:8px;flex:0 0 34px;
}
.feature h4{font-size:17px;margin-bottom:8px}
.feature p{font-size:14px;line-height:1.7;color:var(--body)}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split img{border-radius:6px;box-shadow:0 26px 54px -30px rgba(15,26,36,.45)}
.split ul.checks{margin-top:24px;display:grid;gap:12px}
.split ul.checks li{position:relative;padding-left:26px;font-size:14.5px;line-height:1.65}
.split ul.checks li::before{
  content:"";position:absolute;left:0;top:8px;width:12px;height:7px;
  border-left:2px solid var(--cyan);border-bottom:2px solid var(--cyan);transform:rotate(-45deg);
}

/* ---------- process ---------- */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
.step{padding:28px 24px 0 0;border-right:1px solid var(--line);position:relative}
.step:last-child{border-right:none}
.step .n{font-size:11px;letter-spacing:.2em;color:var(--cyan-deep);font-weight:700;margin-bottom:10px}
.step h4{font-size:16px;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--body);line-height:1.65}

/* ---------- spec table ---------- */
.spec-table{width:100%;border-collapse:collapse;font-size:14px;background:#fff;border:1px solid var(--line)}
.spec-table th,.spec-table td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.spec-table th{
  background:var(--alt);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);font-weight:700;width:34%;
}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none}
.spec-table td b{color:var(--ink);font-weight:600}

/* ---------- CTA band ---------- */
.cta{background:var(--ink);color:#fff;padding:72px 0;position:relative;overflow:hidden}
.cta::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,184,196,.28),transparent 68%);
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta h2{color:#fff;font-size:clamp(24px,2.6vw,32px);font-weight:600}
.cta p{color:#A9B8C3;margin-top:10px;font-size:14.5px}

/* ---------- forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid #D3DCE3;border-radius:4px;font:inherit;font-size:14.5px;
  color:var(--ink);background:#fff;transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(20,184,196,.14);
}
.field textarea{min-height:118px;resize:vertical}
.field .hint{font-size:12px;color:var(--muted)}
.form-note{font-size:12px;color:var(--muted);line-height:1.7}
.form-msg{margin-top:14px;font-size:13.5px;padding:12px 14px;border-radius:4px;display:none}
.form-msg.ok{display:block;background:#ECFBF6;border:1px solid #9FE3CE;color:#146B4E}
.form-msg.err{display:block;background:#FEF2F2;border:1px solid #F6BFBF;color:#9B2C2C}

/* ---------- contact aside ---------- */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}
.info-card{background:var(--alt);border:1px solid var(--line);border-radius:6px;padding:30px}
.info-card h4{font-size:15px;margin-bottom:18px}
.info-row{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed #DCE3E8;font-size:14px}
.info-row:last-child{border-bottom:none}
.info-row .k{color:var(--muted);flex:0 0 92px;font-size:12.5px;letter-spacing:.04em}
.info-row .v{color:var(--ink);font-weight:500}
.todo{color:#B45309;font-size:12px;background:#FFF7ED;border:1px dashed #F5C08A;padding:2px 6px;border-radius:3px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#8FA0AD;padding:60px 0 26px;font-size:13.5px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.site-footer img.flogo{height:34px;margin-bottom:16px}
.site-footer .slogan{color:#C6D2DB;font-size:13px;letter-spacing:.02em}
.site-footer h5{color:#fff;font-size:12px;letter-spacing:.16em;text-transform:uppercase;margin:0 0 14px;font-weight:700}
.site-footer li{margin-bottom:9px;font-size:13px}
.site-footer a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:22px;font-size:12px;color:#6E7E8B;flex-wrap:wrap}

/* ---------- product detail ---------- */
.pdp-hero{background:var(--alt);padding:56px 0 64px;border-bottom:1px solid var(--line)}
.breadcrumb{font-size:12.5px;color:var(--muted);margin-bottom:22px}
.breadcrumb a:hover{color:var(--ink)}
.pdp-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:start}
.pdp-gallery img{border-radius:6px;border:1px solid var(--line);background:#fff}
.pdp-title{font-size:clamp(26px,3vw,36px);font-weight:600;margin-bottom:10px}
.pdp-sub{font-size:14px;color:var(--muted);letter-spacing:.03em;margin-bottom:22px}
.pdp-lead{font-size:15.5px;line-height:1.75;margin-bottom:26px}
.kv{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:26px 0}
.kv div{border-left:2px solid var(--cyan);padding-left:12px}
.kv b{display:block;font-size:18px;color:var(--ink);line-height:1.2}
.kv span{font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.pdp-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
.pdp-body{padding:72px 0}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}

/* ---------- misc ---------- */
.pill{display:inline-block;font-size:11px;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--cyan-deep);background:rgba(20,184,196,.1);padding:5px 10px;border-radius:3px}
.center{text-align:center}
.mt-32{margin-top:32px}
.mt-48{margin-top:48px}

/* ---------- responsive ---------- */
@media(max-width:980px){
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:64px 0 68px}
  .hero-media{order:-1}
  .trust ul{grid-template-columns:repeat(2,1fr)}
  .cards,.features,.split,.pdp-grid,.two-col,.contact-grid,.form-grid{grid-template-columns:1fr}
  .process{grid-template-columns:repeat(2,1fr);gap:24px 0;border-top:none}
  .step{border-right:none;border-top:1px solid var(--line);padding-top:20px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:760px){
  .nav{display:none}
  .nav.open{
    display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;
    background:#fff;border-bottom:1px solid var(--line);padding:8px 24px 18px;
  }
  .nav.open a{padding:13px 0;border-bottom:1px solid var(--line);width:100%}
  .burger{display:block}
  .header-inner{position:relative}
  .section{padding:60px 0}
  .kv{grid-template-columns:1fr 1fr}
  .pdp-body{padding:52px 0}
  .trust ul{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media print{
  .site-header,.draft-bar,.cta,.site-footer,.pdp-actions{display:none}
}