@font-face{font-family:'Archivo';font-style:normal;font-weight:400;font-display:swap;src:url('https://rockbreaking.com.cn/wp-content/uploads/2026/08/fonts/archivo-normal-400.woff2') format('woff2');}
@font-face{font-family:'Archivo';font-style:normal;font-weight:600;font-display:swap;src:url('https://rockbreaking.com.cn/wp-content/uploads/2026/08/fonts/archivo-normal-600.woff2') format('woff2');}
@font-face{font-family:'Archivo';font-style:normal;font-weight:700;font-display:swap;src:url('https://rockbreaking.com.cn/wp-content/uploads/2026/08/fonts/archivo-normal-700.woff2') format('woff2');}
@font-face{font-family:'Archivo';font-style:normal;font-weight:800;font-display:swap;src:url('https://rockbreaking.com.cn/wp-content/uploads/2026/08/fonts/archivo-normal-800.woff2') format('woff2');}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400;font-display:swap;src:url('https://rockbreaking.com.cn/wp-content/uploads/2026/08/fonts/jetbrains-normal-400.woff2') format('woff2');}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:500;font-display:swap;src:url('https://rockbreaking.com.cn/wp-content/uploads/2026/08/fonts/jetbrains-normal-500.woff2') format('woff2');}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:600;font-display:swap;src:url('https://rockbreaking.com.cn/wp-content/uploads/2026/08/fonts/jetbrains-normal-600.woff2') format('woff2');}

/* ============ tokens ============ */
:root{
  --bg:#0b0d10;
  --bg-2:#0f1216;
  --panel:#151a20;
  --panel-2:#1a212a;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.18);
  --fg:#eef1f4;
  --fg-strong:#f7f9fb;
  --muted:#97a1ad;
  --accent:#ff6a00;          /* single accent: safety orange, vala-family */
  --accent-ink:#ff9436;      /* accent for small text on dark (8.4:1) */
  --ok:#4cbf82;
  --bad:#e0604f;
  --font-display:'Archivo','Helvetica Neue',Arial,sans-serif;
  --font-body:'Archivo','Helvetica Neue',Arial,sans-serif;
  --font-mono:'JetBrains Mono',Consolas,'Courier New',monospace;
  --container:1180px;
  --pad:24px;
  --ease:cubic-bezier(.16,1,.3,1);
}
/* shape system: all UI surfaces sharp (radius 0). Only the device frame is rounded. */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--fg);
  font-family:var(--font-body);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
::selection{background:var(--accent);color:#0b0d10}
img{display:block;max-width:100%}
a{color:var(--fg);text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--line-strong)}
a:hover{color:var(--fg-strong)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.skip-link{position:absolute;left:-999px;top:0;background:var(--accent);color:#0b0d10;padding:10px 16px;font-weight:700;z-index:100}
.skip-link:focus{left:0}
.wrap{max-width:var(--container);margin:0 auto;padding:0 var(--pad)}

/* ============ typography ============ */
h1,h2,h3,h4{font-family:var(--font-display);color:var(--fg-strong);line-height:1.08;letter-spacing:-.02em;font-weight:700}
h1{font-size:clamp(40px,7vw,80px);font-weight:800;letter-spacing:-.03em;line-height:.98;text-wrap:balance}
h2{font-size:clamp(28px,4.2vw,46px);font-weight:700;letter-spacing:-.02em;line-height:1.06;text-wrap:balance}
h3{font-size:20px;font-weight:600;letter-spacing:-.01em;line-height:1.25}
p{max-width:65ch}
.mono{font-family:var(--font-mono)}
.caps{font-family:var(--font-mono);font-size:12px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.sect{padding:clamp(72px,9vw,124px) 0}
.sect-dark{background:var(--bg-2)}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:52px;padding:0 28px;border:1px solid transparent;
  font-family:var(--font-body);font-size:15px;font-weight:600;letter-spacing:.02em;
  text-decoration:none;cursor:pointer;border-radius:0;transition:transform .18s var(--ease),background .2s,color .2s,border-color .2s;
}
.btn:active{transform:translateY(1px) scale(.99)}
.btn-primary{background:var(--accent);color:#0b0d10}
.btn-primary:hover{background:#ff7f26;color:#0b0d10}
.btn-primary:focus-visible{outline-color:var(--accent)}
.btn-ghost{border-color:var(--line-strong);color:var(--fg-strong);background:transparent}
.btn-ghost:hover{border-color:var(--fg-strong);background:rgba(255,255,255,.04);color:var(--fg)}
.btn svg{flex:none}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;text-underline-offset:4px}
.link-arrow svg{transition:transform .2s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ============ site nav: zd-nav spec below ============ */.brand{font-family:var(--font-display);font-weight:800;font-size:19px;letter-spacing:.02em;color:var(--fg-strong);text-decoration:none;display:flex;align-items:baseline;gap:10px}
.brand em{font-style:italic;font-weight:400;color:var(--muted);font-size:13px;letter-spacing:.08em}
/* ============ site nav (zd-nav spec v1.0, black-gold, site-wide) ============ */
.zd-nav{background:#0f0f1a;position:sticky;top:0;z-index:10000;box-shadow:0 2px 10px rgba(0,0,0,.25);font-family:'Segoe UI',Roboto,'Helvetica Neue','Microsoft YaHei',Arial,sans-serif;}
.zd-nav .wrap{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;padding:0 30px;}
.zd-nav a{text-decoration:none;}
.zd-nav .brand{display:flex;align-items:center;gap:12px;padding:14px 0;}
.zd-nav .brand .logo{width:44px;height:44px;background:linear-gradient(135deg,#d4a24e,#b8862d);border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:18px;}
.zd-nav .brand .name{color:#fff;font-size:19px;font-weight:700;}
.zd-nav .toggle{display:none;background:none;border:none;color:#fff;font-size:26px;cursor:pointer;padding:14px 0;}
.zd-nav .menu{display:flex;align-items:center;gap:0;flex-wrap:wrap;list-style:none;margin:0;padding:0;}
.zd-nav .menu > li{margin:0;position:relative;}
.zd-nav .menu > li > a{color:#ecf0f1;padding:22px 18px;display:block;font-size:15px;font-weight:500;transition:background .3s ease;}
.zd-nav .menu > li > a:hover{background:rgba(255,255,255,.08);}
.zd-nav .dropdown{position:absolute;top:100%;left:0;background:#fff;min-width:270px;box-shadow:0 8px 24px rgba(0,0,0,.18);border-radius:8px;padding:8px 0;display:none;}
.zd-nav .has-dropdown:hover .dropdown{display:block;}
.zd-nav .dropdown a{color:#2c2c2c;padding:11px 20px;display:block;font-size:14px;transition:background .2s ease;}
.zd-nav .dropdown a:hover{background:#f5f3f0;}
.zd-nav .dropdown-group{padding:8px 20px 4px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:#b8862d;}
.zd-nav .dropdown-sep{height:1px;background:#ece6dd;margin:6px 14px;}
.zd-nav .cta{background:#d4a24e;color:#fff !important;padding:10px 22px;border-radius:6px;margin:0 0 0 12px;font-weight:600;}
.zd-nav .cta:hover{filter:brightness(1.06);}
.zd-nav .dropdown a[aria-current="page"]{background:#f5f3f0;font-weight:700;color:#b8862d;}
@media(max-width:768px){
  .zd-nav .toggle{display:block;}
  .zd-nav .menu{display:none;width:100%;flex-direction:column;}
  .zd-nav .menu.open{display:flex;}
  .zd-nav .menu > li{width:100%;}
  .zd-nav .menu > li > a{padding:15px 0;border-bottom:1px solid rgba(255,255,255,.08);}
  .zd-nav .dropdown{position:static;box-shadow:none;background:#16213e;min-width:0;border-radius:0;padding:0;}
  .zd-nav .has-dropdown.open .dropdown{display:block;}
  .zd-nav .dropdown a{color:#ecf0f1;padding:12px 24px;}
  .zd-nav .dropdown a[aria-current="page"]{background:rgba(255,255,255,.1);color:#d4a24e;}
  .zd-nav .dropdown-group{padding:12px 24px 4px;color:#d4a24e;}
  .zd-nav .dropdown-sep{background:rgba(255,255,255,.15);margin:6px 24px;}
  .zd-nav .cta{margin:12px 0;}
}


/* ============ hero ============ */
.hero{position:relative;min-height:calc(100dvh - 73px);display:flex;align-items:flex-end;overflow:hidden;background:var(--bg)}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.5;animation:heroIn 2.6s var(--ease) both}
@keyframes heroIn{from{transform:scale(1.06);opacity:.35}to{transform:scale(1);opacity:.5}}
.hero-scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,16,.55) 0%,rgba(11,13,16,.35) 35%,rgba(11,13,16,.92) 78%,#0b0d10 100%)}
.hero-grid{position:relative;z-index:2;width:100%;padding:150px 0 72px;display:grid;grid-template-columns:minmax(0,9fr) minmax(0,3fr);gap:40px;align-items:end}
.hero-eyebrow{display:inline-flex;align-items:center;gap:10px;margin-bottom:22px}
.hero-eyebrow::before{content:"";width:34px;height:2px;background:var(--accent)}
.hero h1{margin-bottom:24px}
.hero h1 em{font-style:italic;font-weight:400}
.hero-sub{color:var(--muted);font-size:clamp(16px,1.6vw,19px);max-width:58ch;margin-bottom:36px}
.hero-sub strong{color:var(--fg-strong);font-weight:600}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px}
.hero-tag{margin-top:34px;display:flex;gap:22px;flex-wrap:wrap}
.hero-tag span{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}

/* mobile fullscreen hero video (hidden on desktop, banner image used instead) */
.hero-video-bg{display:none;position:absolute;inset:0;width:100%;height:100%;object-fit:cover}

/* ============ stats band ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stat{padding:44px 28px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat .stat-num{font-family:var(--font-mono);font-weight:600;font-size:clamp(34px,4vw,52px);line-height:1;color:var(--fg-strong);letter-spacing:-.02em;display:flex;align-items:baseline;gap:4px}
.stat .stat-num small{font-size:.45em;color:var(--accent-ink)}
.stat .stat-label{margin-top:12px;font-size:13.5px;color:var(--muted);letter-spacing:.02em}

/* ============ sections common ============ */
.sect-head{margin-bottom:clamp(40px,6vw,64px)}
.sect-head .caps{display:block;margin-bottom:14px}
.sect-head p{color:var(--muted);margin-top:16px;font-size:17px}

/* why */
.why-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:28px}
.why-media{position:relative;background:var(--panel);overflow:hidden;min-height:380px}
.why-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.why-media .why-media-cap{position:absolute;left:0;bottom:0;right:0;padding:28px 22px 20px;background:linear-gradient(180deg,transparent,rgba(11,13,16,.85));font-size:12.5px;color:var(--muted);font-family:var(--font-mono);letter-spacing:.04em}
.why-feats{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line)}
.why-feat{background:var(--bg-2);padding:30px 26px;display:flex;flex-direction:column;gap:14px;transition:background .25s}
.why-feat:hover{background:var(--panel)}
.why-feat svg{width:22px;height:22px;color:var(--accent);flex:none}
.why-feat h3{font-size:17.5px}
.why-feat p{font-size:14.5px;color:var(--muted);line-height:1.6}

/* field video showcase */
.showcase{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:56px;align-items:center}
.showcase-copy .caps{display:block;margin-bottom:14px}
.showcase-copy p{color:var(--muted);margin:18px 0 26px}
.showcase-meta{display:flex;flex-wrap:wrap;gap:10px}
.showcase-meta span{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);padding:7px 12px}
.phone-wrap{display:flex;flex-direction:column;align-items:center}
.phone{width:100%;max-width:320px;aspect-ratio:9/17;position:relative;background:var(--panel-2);border:6px solid #262d36;border-radius:26px;box-shadow:0 40px 80px rgba(0,0,0,.45);overflow:hidden}
.phone-notch{position:absolute;top:8px;left:50%;transform:translateX(-50%);width:90px;height:16px;background:#262d36;border-radius:20px;z-index:3}
.phone video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.phone-cap{width:100%;max-width:320px;text-align:center;margin:16px auto 0;font-size:13px;color:var(--muted)}

/* how it works */
.flow-phases{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);margin-bottom:28px}
.phase{background:var(--bg-2);padding:34px 30px;position:relative}
.phase .phase-num{font-family:var(--font-mono);font-size:13px;font-weight:600;color:var(--accent-ink);display:block;margin-bottom:16px;letter-spacing:.06em}
.phase h3{margin-bottom:12px;font-size:19px}
.phase p{font-size:14.5px;color:var(--muted)}
.flow-img{position:relative;background:var(--panel);overflow:hidden;border:1px solid var(--line)}
.flow-img img{width:100%;height:auto}
.flow-cap{padding:16px 20px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);font-family:var(--font-mono);letter-spacing:.03em}

/* specs */
.specs-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:28px}
.spec-card{background:var(--panel);border:1px solid var(--line);display:flex;flex-direction:column}
.spec-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:24px 28px;border-bottom:1px solid var(--line)}
.spec-head h3{font-size:22px;font-family:var(--font-mono);font-weight:600;letter-spacing:.01em}
.spec-badge{font-family:var(--font-mono);font-size:11.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;padding:6px 10px;border:1px solid var(--line-strong);color:var(--muted)}
.spec-card.primary .spec-head{background:linear-gradient(90deg,rgba(255,106,0,.14),transparent 70%)}
.spec-card.primary .spec-badge{border-color:rgba(255,106,0,.5);color:var(--accent-ink)}
.spec-body{padding:10px 28px 26px;flex:1}
.spec-group{padding:16px 0;border-bottom:1px solid var(--line)}
.spec-group:last-child{border-bottom:0}
.spec-group-title{font-family:var(--font-mono);font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.spec-row{display:flex;justify-content:space-between;gap:18px;padding:7px 0;font-size:14.5px}
.spec-row dl{display:flex;justify-content:space-between;gap:18px;width:100%}
.spec-row dt{color:var(--muted)}
.spec-row dd{font-family:var(--font-mono);font-weight:500;text-align:right;color:var(--fg-strong)}
.specs-note{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;background:var(--panel);border:1px solid var(--line);padding:20px 26px}
.specs-note p{font-size:14.5px;color:var(--muted);margin:0}

/* components */
.comp-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:28px;align-items:stretch}
.comp-media{background:var(--panel);overflow:hidden;border:1px solid var(--line);display:flex;align-items:center}
.comp-media img{width:100%;height:100%;object-fit:cover}
.comp-list{display:grid;gap:1px;background:var(--line)}
.comp-item{background:var(--bg-2);padding:26px 26px 24px;display:grid;grid-template-columns:44px 1fr;gap:18px;align-items:start;transition:background .25s}
.comp-item:hover{background:var(--panel)}
.comp-item svg{width:24px;height:24px;color:var(--accent);margin-top:2px}
.comp-item h3{font-size:17px;margin-bottom:8px}
.comp-item p{font-size:14.5px;color:var(--muted)}

/* comparison table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);background:var(--panel)}
table.cmp{width:100%;border-collapse:collapse;min-width:640px}
.cmp th,.cmp td{padding:18px 24px;text-align:left;border-bottom:1px solid var(--line);font-size:15px}
.cmp thead th{font-family:var(--font-mono);font-size:12px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);font-weight:600}
.cmp thead th:first-child{width:34%}
.cmp thead th.col-co2{color:var(--accent-ink)}
.cmp tbody tr:last-child td{border-bottom:0}
.cmp td.col-co2{font-weight:600;color:var(--fg-strong)}
.cmp td.metric{color:var(--muted)}
.cmp .ok,.cmp .no{display:inline-flex;align-items:center;gap:8px}
.cmp .ok svg{color:var(--ok)} .cmp .no svg{color:var(--bad)}
.tbl-intro{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:18px}

/* reusable vs disposable */
.tubes{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.tube{background:var(--panel);border:1px solid var(--line);overflow:hidden;display:flex;flex-direction:column}
.tube-media{aspect-ratio:21/10;overflow:hidden;position:relative}
.tube-media img{width:100%;height:100%;object-fit:cover}
.tube-body{padding:28px;display:flex;flex-direction:column;gap:16px;flex:1}
.tube-body h3{font-size:21px}
.tube-body ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.tube-body li{display:flex;gap:12px;font-size:15px;color:var(--muted);line-height:1.55}
.tube-body li svg{flex:none;width:18px;height:18px;color:var(--accent);margin-top:3px}
.tube-best{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.tube-best strong{color:var(--fg-strong);font-weight:600}

/* applications */
.apps{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line)}
.app{background:var(--bg-2);padding:30px 28px;display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;transition:background .25s}
.app:hover{background:var(--panel)}
.app .app-idx{font-family:var(--font-mono);font-size:13px;color:var(--accent-ink);font-weight:600;padding-top:4px}
.app h3{font-size:17px;margin-bottom:7px}
.app p{font-size:14.5px;color:var(--muted)}

/* case study */
.case{background:radial-gradient(140% 120% at 85% 0%,rgba(255,106,0,.08),transparent 55%),var(--panel);border:1px solid var(--line)}
.case-inner{padding:clamp(40px,6vw,76px);display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:56px;align-items:start}
.case-stats{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line)}
.case-stat{background:var(--bg-2);padding:26px 24px}
.case-stat .num{font-family:var(--font-mono);font-weight:600;font-size:clamp(30px,3.4vw,44px);color:var(--fg-strong);letter-spacing:-.02em;line-height:1}
.case-stat .num small{font-size:.45em;color:var(--accent-ink);font-weight:600}
.case-stat span{display:block;margin-top:10px;font-size:13px;color:var(--muted)}
.case-copy .caps{display:block;margin-bottom:14px}
.case-copy h2{margin-bottom:20px}
.case-copy p{color:var(--muted);margin-bottom:18px}
.case-copy p strong{color:var(--fg-strong);font-weight:600}

/* trust band */
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.trust-item{background:var(--bg-2);padding:34px 28px}
.trust-item .t-num{font-family:var(--font-display);font-weight:800;font-size:30px;color:var(--fg-strong);letter-spacing:-.01em}
.trust-item .t-label{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-top:8px;display:block}
.trust-item .t-sub{font-size:13.5px;color:var(--muted);margin-top:4px}

/* faq */
.faq{max-width:820px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 6px;font-family:var(--font-display);font-size:18px;font-weight:600;color:var(--fg-strong);letter-spacing:-.01em;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .faq-icon{flex:none;width:28px;height:28px;border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;color:var(--accent);transition:transform .25s var(--ease);border-radius:0}
.faq-item[open] summary .faq-icon{transform:rotate(45deg)}
.faq-item .faq-a{padding:0 6px 26px;color:var(--muted);max-width:62ch}
.faq-item .faq-a p{margin-bottom:12px}
.faq-item .faq-a p:last-child{margin-bottom:0}

/* cta + form */
.cta-band{background:radial-gradient(120% 100% at 15% 0%,rgba(255,106,0,.10),transparent 55%),var(--bg-2);border-top:1px solid var(--line)}
.cta-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:56px;align-items:start}
.cta-copy .caps{display:block;margin-bottom:14px}
.cta-copy h2{margin-bottom:20px}
.cta-copy p{color:var(--muted);margin-bottom:28px}
.cta-reply{display:flex;flex-wrap:wrap;gap:12px}
.cta-reply span{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);padding:7px 12px}
.contact-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;align-items:center}
.contact-links a{display:inline-flex;align-items:center;gap:9px;text-decoration:none;font-weight:600;font-size:15px}
.contact-links a svg{width:19px;height:19px;color:var(--accent)}
.contact-links .sep{color:var(--muted);font-family:var(--font-mono);font-size:13px}
.form-card{background:var(--panel);border:1px solid var(--line);padding:clamp(26px,4vw,40px)}
.form-card h3{font-size:22px;margin-bottom:6px}
.form-card .form-sub{font-size:14px;color:var(--muted);margin-bottom:26px}
.cta-stack{display:flex;flex-direction:column;gap:14px}
.cta-stack .btn{width:100%}
.form-note{font-size:12.5px;color:var(--muted);margin-top:16px}

/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--bg-2);padding:64px 0 40px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;margin-bottom:52px}
.foot-brand .brand{margin-bottom:14px}
.foot-brand p{font-size:14px;color:var(--muted)}
.foot-col h4{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);margin-bottom:16px;font-weight:600}
.foot-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.foot-col a{font-size:14px;color:var(--muted);text-decoration:none}
.foot-col a:hover{color:var(--fg-strong)}
.foot-col .mono{font-size:13px;color:var(--muted);display:block;margin-bottom:10px}
.foot-bottom{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.foot-bottom p{font-size:13px;color:var(--muted);margin:0}
.foot-bottom .mono{font-size:12px}

[data-reveal].is-in{opacity:1;transform:none}

/* ============ floating WhatsApp button ============ */
.wa-fab{position:fixed;right:22px;top:50%;transform:translateY(-50%);z-index:9000;width:56px;height:56px;border-radius:50%;background:#25d366;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 8px 24px rgba(0,0,0,.38);transition:transform .25s var(--ease),background .25s,opacity .25s var(--ease)}
.wa-fab:hover{transform:translateY(-50%) scale(1.07);background:#1fbd5b;color:#fff}
.wa-fab svg{width:30px;height:30px}
.wa-fab::before{content:"";position:absolute;inset:-5px;border-radius:50%;background:rgba(37,211,102,.4);z-index:-1;animation:waPulse 2.6s var(--ease) infinite}
@keyframes waPulse{0%{transform:scale(.9);opacity:.75}70%{transform:scale(1.4);opacity:0}100%{transform:scale(1.4);opacity:0}}
@media (max-width:768px){
  .wa-fab{right:14px;top:50%;transform:translateY(-50%);width:52px;height:52px}
  .wa-fab svg{width:28px;height:28px}
}
@media (prefers-reduced-motion:reduce){
  .wa-fab::before{animation:none;display:none}
}

/* tawk chat window open: hide WhatsApp FAB */
.wa-fab.wa-hidden{opacity:0;pointer-events:none;transform:translateY(-50%) scale(.85)}

/* ============ responsive ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;padding-top:120px}
  .hero-bg{display:none}
  .hero-video-bg{display:block}
  .why-grid,.showcase,.comp-grid,.case-inner,.cta-grid{grid-template-columns:1fr}
  .why-media{min-height:300px}
  .case-inner{gap:40px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(n+3){border-top:1px solid var(--line)}
}
@media (max-width:768px){
  .hero{min-height:calc(100dvh - 54px)}
  .flow-phases,.specs-grid,.tubes{grid-template-columns:1fr}
  .why-feats,.apps{grid-template-columns:1fr}
  .trust{grid-template-columns:1fr 1fr}
  .sect{padding:64px 0}
  .phone{max-width:280px}
}
@media (max-width:480px){
  .stats{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .trust{grid-template-columns:1fr}
  .hero-ctas .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  [data-reveal]{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* faq v2 page-hero additions */
.page-hero{background:radial-gradient(140% 120% at 80% 0%,rgba(255,106,0,.12),transparent 55%),var(--bg-2);border-bottom:1px solid var(--line);padding:60px 20px;text-align:center}
.page-hero .kick{font-family:var(--mono);font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-ink)}
.page-hero h1{font-size:clamp(30px,5vw,48px);font-weight:800;letter-spacing:-.02em;line-height:1.08;color:var(--fg-strong);max-width:900px;margin:14px auto 16px}
.page-hero p{margin:0 auto;max-width:680px;color:var(--muted)}

/* ===== industry applications page ===== */
.jump-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.jump-row a{font-family:var(--mono);font-size:12.5px;font-weight:600;letter-spacing:.04em;color:var(--muted);background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:9px 18px}
.jump-row a:hover{color:var(--fg-strong);border-color:rgba(255,255,255,.25)}
.ind-head{max-width:860px;margin-bottom:34px}
.ind-head .kick{display:block;margin-bottom:14px}
.ind-head h2{font-size:clamp(23px,3.4vw,34px);font-weight:800;letter-spacing:-.01em;color:var(--fg-strong);line-height:1.2}
.ind-head p{margin-top:12px;color:var(--muted)}
.prods-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.prod-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:20px}
.prod-card h4{font-size:15.5px;color:var(--fg-strong);margin-bottom:8px}
.prod-card p{font-size:13.5px;color:var(--muted);line-height:1.55}
.prod-card a{display:inline-block;margin-top:12px;font-family:var(--mono);font-size:12.5px;font-weight:600;letter-spacing:.04em;color:var(--accent-ink)}
.metrics-mini{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.metrics-mini span{background:var(--bg-2);border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-family:var(--mono);font-size:12px;color:var(--fg-strong)}
.consult-row{margin-top:30px}
@media(max-width:1024px){.prods-row{grid-template-columns:1fr}}
.consultant{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:26px}
.consultant .who{display:flex;align-items:center;gap:16px}
.consultant .ava{width:56px;height:56px;border-radius:50%;background:linear-gradient(135deg,#ff6a00,#b85c00);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}
.consultant h3{font-size:17px;color:var(--fg-strong)}
.consultant .role{font-size:13px;color:var(--muted);margin-top:2px}