/* Canton Laser — site stylesheet
   Light content surface, deep-navy brand panels, laser-orange accent.
   No external fonts, no CDN. */

:root{
  --ink:#0B1220;
  --ink-2:#39424F;
  --ink-3:#5C6675;
  --muted:#8A94A3;
  --line:#E4E8EF;
  --line-2:#EDF0F5;
  --bg:#FFFFFF;
  --soft:#F6F7F9;
  --soft-2:#FBFCFD;
  --navy:#0C1524;
  --navy-2:#132133;
  --accent:#F04E23;
  --accent-d:#D53F17;
  --accent-soft:#FFF3EE;
  --ok:#0E7C5A;
  --radius:14px;
  --radius-lg:20px;
  --maxw:1180px;
  --shadow-s:0 1px 2px rgba(11,18,32,.06);
  --shadow-m:0 10px 30px -12px rgba(11,18,32,.18);
  --shadow-l:0 24px 60px -24px rgba(11,18,32,.28);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink-2);
  font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.68;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
p{margin:0 0 1em}
h1,h2,h3,h4{color:var(--ink);margin:0 0 .5em;line-height:1.22;letter-spacing:-.021em;font-weight:700}
h1{font-size:clamp(2rem,4.4vw,3.35rem);letter-spacing:-.03em}
h2{font-size:clamp(1.5rem,2.8vw,2.15rem)}
h3{font-size:1.19rem}
h4{font-size:1rem}
ul,ol{margin:0 0 1em;padding-left:1.2em}
li{margin:.3em 0}
strong{color:var(--ink);font-weight:650}
code{background:var(--soft);padding:.1em .4em;border-radius:5px;font-size:.92em}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.container-narrow{max-width:820px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-sm{padding:52px 0}
.section-soft{background:var(--soft)}
.section-navy{background:var(--navy);color:#C9D2E0}
.section-navy h2,.section-navy h3,.section-navy h4{color:#fff}
.center{text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--accent);margin:0 0 14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:block}
.section-navy .eyebrow{color:#FF8A66}
.section-navy .eyebrow::before{background:#FF8A66}
.lead{font-size:1.075rem;color:var(--ink-3);max-width:70ch}
.sec-head{max-width:760px;margin-bottom:40px}
.sec-head p{margin-bottom:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;gap:18px;height:70px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:30px;height:30px;border-radius:8px;background:var(--navy);
  display:grid;place-items:center;position:relative;overflow:hidden;
}
.brand-mark::after{
  content:"";width:16px;height:3px;border-radius:2px;background:var(--accent);
  box-shadow:0 0 10px 1px rgba(240,78,35,.75);transform:rotate(-38deg);
}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-name{font-weight:800;letter-spacing:.06em;font-size:15.5px;color:var(--ink)}
.brand-sub{font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);font-weight:600}

.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-item{position:relative}
.nav-link{
  display:inline-flex;align-items:center;gap:5px;
  padding:9px 12px;border-radius:9px;
  font-size:14.5px;font-weight:600;color:var(--ink-2);
  transition:background .16s,color .16s;white-space:nowrap;
}
.nav-link:hover,.nav-link[aria-current="page"]{background:var(--soft);color:var(--ink)}
.nav-link[aria-current="page"]{color:var(--accent)}
.caret{width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-1px);opacity:.55}
.submenu{
  position:absolute;top:calc(100% + 8px);left:0;min-width:296px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-m);padding:8px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .16s,transform .16s,visibility .16s;
}
.nav-item:hover .submenu,.nav-item:focus-within .submenu{opacity:1;visibility:visible;transform:translateY(0)}
.submenu a{display:block;padding:9px 12px;border-radius:8px;font-size:14px;font-weight:550;color:var(--ink-2)}
.submenu a:hover{background:var(--soft);color:var(--ink)}
.submenu a span{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:1px}
.submenu .submenu-all{border-top:1px solid var(--line-2);margin-top:6px;padding-top:12px;color:var(--accent);font-weight:650}

.nav-right{display:flex;align-items:center;gap:10px;margin-left:6px;flex:0 0 auto}
.lang{display:flex;align-items:center;gap:2px;border:1px solid var(--line);border-radius:9px;padding:2px;flex:0 0 auto}
.lang a,.lang span{font-size:12.5px;font-weight:650;padding:5px 8px;border-radius:7px;color:var(--ink-3);white-space:nowrap}
.lang .is-active{background:var(--navy);color:#fff}
.lang .is-soon{color:#B4BCC8;cursor:not-allowed}
.lang .is-soon::after{content:"soon";font-size:7px;font-weight:700;letter-spacing:.02em;color:var(--accent);vertical-align:super;margin-left:2px}
/* header items must never shrink — squeezing them wrapped "中文" one character per line */
.nav-item,.brand-cta{flex:0 0 auto}
.nav-right .btn,.brand-cta{white-space:nowrap}
@media (max-width:1279px){
  .nav{gap:12px}
  .nav-link{padding:9px 9px;font-size:13.6px}
  .lang a,.lang span{padding:5px 6px;font-size:11.5px}
  .nav-right{gap:7px}
  .brand-cta{padding:10px 13px;font-size:13px}
  .brand-cta svg{width:15px;height:15px}
}
@media (max-width:1080px){
  .brand-sub{display:none}
  .nav-link{padding:8px 7px;font-size:13px}
  .lang .is-soon{display:none}
  .brand-cta{padding:9px 11px;font-size:12.5px}
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 20px;border-radius:10px;border:1px solid transparent;
  font-size:14.5px;font-weight:650;line-height:1.2;cursor:pointer;
  transition:transform .14s,background .16s,box-shadow .16s,border-color .16s;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px -8px rgba(240,78,35,.65)}
.btn-primary:hover{background:var(--accent-d);box-shadow:0 12px 26px -10px rgba(240,78,35,.7)}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{background:var(--navy-2)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:#C9D0DA;background:var(--soft-2)}
.btn-light{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.22)}
.btn-light:hover{background:rgba(255,255,255,.17)}
.btn-lg{padding:15px 26px;font-size:15.5px;border-radius:11px}
.btn-block{width:100%}
.btn-wa svg{width:17px;height:17px;flex:0 0 auto}

.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;
  border-radius:9px;align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:16px;height:1.8px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:1.8px;background:var(--ink)}
.nav-toggle span::before{top:-5px}.nav-toggle span::after{top:5px}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--navy);color:#D3DBE8;overflow:hidden;isolation:isolate}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:
    radial-gradient(760px 420px at 82% -8%,rgba(240,78,35,.30),transparent 62%),
    radial-gradient(620px 400px at 12% 108%,rgba(52,112,190,.30),transparent 60%),
    linear-gradient(180deg,#0C1524 0%,#0B1220 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 30%,#000 10%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 10%,transparent 78%);
}
.hero-inner{padding:88px 0 78px;display:grid;grid-template-columns:1.12fr .88fr;gap:56px;align-items:center}
.hero h1{color:#fff;margin-bottom:18px}
.hero h1 em{font-style:normal;color:#FF7A4D}
.hero p{color:#B9C4D6;font-size:1.09rem;max-width:56ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:38px;padding-top:26px;border-top:1px solid rgba(255,255,255,.13)}
.hero-meta div{font-size:13px;color:#93A1B8}
.hero-meta b{display:block;font-size:19px;color:#fff;font-weight:700;letter-spacing:-.01em;margin-bottom:1px}
.hero-visual{position:relative}
.hero-frame{
  border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(255,255,255,.15);
  background:#0A111E;box-shadow:var(--shadow-l);aspect-ratio:4/3.15;
}
.hero-badge{
  position:absolute;left:-14px;bottom:22px;background:#fff;color:var(--ink);
  border-radius:12px;padding:12px 16px;box-shadow:var(--shadow-m);
  display:flex;align-items:center;gap:11px;font-size:12.5px;font-weight:600;
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(14,124,90,.14)}
.hero-badge small{display:block;font-size:11px;color:var(--muted);font-weight:500}

/* page hero (inner pages) */
.page-hero{background:var(--navy);color:#C9D2E0;padding:52px 0 56px;position:relative;overflow:hidden;isolation:isolate}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(620px 300px at 84% 0%,rgba(240,78,35,.24),transparent 65%),linear-gradient(180deg,#0C1524,#0B1220);
}
.page-hero-sm{padding:34px 0 36px}
.page-hero-sm h1{max-width:34ch}
.page-hero .hero-actions{margin-top:22px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.page-hero h1{color:#fff;font-size:clamp(1.85rem,3.6vw,2.9rem);margin-bottom:14px;max-width:29ch}
.page-hero p{color:#AEBACD;font-size:1.03rem;max-width:66ch;margin:0}
.page-hero .eyebrow{color:#FF8A66}
.page-hero .eyebrow::before{background:#FF8A66}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:7px;font-size:12.5px;color:#8C99AF;margin-bottom:20px}
.crumbs a{color:#B8C3D4}
.crumbs a:hover{color:#fff}
.crumbs .sep{opacity:.45}
.crumbs .now{color:#7F8CA3}

/* ---------- images ---------- */
.media{position:relative;margin:0;overflow:hidden;border-radius:var(--radius);
  /* Product shots sit on a near-black plate, so the empty frame before a lazy
     image arrives is the same tone as the picture — no grey block that reads
     as a broken image. */
  background:radial-gradient(120% 120% at 50% 38%,#151D29 0%,#0A0E14 72%)}
.media picture{display:block;width:100%;height:100%}
.media img{width:100%;height:100%;object-fit:cover}
.media.is-missing{
  min-height:200px;display:grid;place-items:center;
  background:
    repeating-linear-gradient(135deg,#F1F3F7 0 10px,#F7F8FA 10px 20px);
  border:1px dashed #D2D8E2;
}
.media.is-missing::after{
  content:"IMAGE PLACEHOLDER\A" attr(data-label);
  white-space:pre-line;text-align:center;
  font-size:11px;line-height:1.7;letter-spacing:.08em;color:#98A2B3;
  font-weight:600;text-transform:uppercase;padding:18px;
}
.caption{margin-top:11px;font-size:12.4px;line-height:1.5;color:var(--ink-3)}
.gal-2{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:34px;max-width:660px}
.gal-2>*{min-width:0}
.gal-2 .media{aspect-ratio:4/3;background:#fff}
.gal-2 .media img{object-fit:contain}
.media-4x3{aspect-ratio:4/3}
.media-16x9{aspect-ratio:16/9}
.media-1x1{aspect-ratio:1/1}
.media-contain img{object-fit:contain;background:transparent}

/* dark-surface placeholders (hero, navy sections) */
.hero .media.is-missing,.section-navy .media.is-missing,.cta-band .media.is-missing{
  background:repeating-linear-gradient(135deg,rgba(255,255,255,.055) 0 12px,rgba(255,255,255,.015) 12px 24px);
  border-color:rgba(255,255,255,.16);
}
.hero .media.is-missing::after,.section-navy .media.is-missing::after{
  color:rgba(255,255,255,.34);letter-spacing:.12em;
}
/* quiet placeholders inside cards: label only, no shouting */
.card .media.is-missing::after{font-size:10px;letter-spacing:.06em;color:#AAB3C0}

/* ---------- cards ---------- */
.grid{display:grid;gap:22px}
.grid>*{min-width:0}
.grid>*{min-width:0}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s,box-shadow .18s,border-color .18s;
}
a.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-m);border-color:#D6DCE6}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.card-body h3{margin-bottom:7px}
.card-body p{font-size:14.5px;color:var(--ink-3);margin-bottom:16px}
.card-foot{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:13.5px;font-weight:650;color:var(--accent)}
.card-foot::after{content:"\2192";transition:transform .18s}
a.card:hover .card-foot::after{transform:translateX(3px)}

/* ---------- home quick-start strip (replaces the duplicate three big cards) ---------- */
.quickstart{margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.quickstart-title{margin:0 0 14px;font-size:12.2px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--muted)}
.quickstart-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.quickstart-item{
  display:block;padding:15px 17px;background:var(--soft);border:1px solid var(--line);
  border-radius:var(--radius);transition:border-color .18s,background .18s,box-shadow .18s;
}
.quickstart-item:hover{background:#fff;border-color:var(--accent);box-shadow:0 8px 22px -12px rgba(11,18,32,.28)}
.quickstart-item b{display:block;font-size:15.5px;color:var(--ink);margin-bottom:3px;letter-spacing:-.01em}
.quickstart-item>span:last-child{display:block;font-size:13.2px;line-height:1.5;color:var(--ink-3)}
.qs-tag{display:block;font-size:10.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:5px}
@media (max-width:820px){.quickstart-grid{grid-template-columns:1fr}}
.tag{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
  padding:4px 9px;border-radius:6px;background:var(--accent-soft);color:var(--accent-d);
  margin-bottom:12px;
}
.tag-neutral{background:var(--soft);color:var(--ink-3)}

/* feature grid */
.features{display:grid;gap:2px;grid-template-columns:repeat(4,1fr);background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.features>*{min-width:0}
.features>*{min-width:0}
.features-6{grid-template-columns:repeat(3,1fr)}
.feature{background:#fff;padding:28px 24px}
.feature .num{font-size:11px;font-weight:800;letter-spacing:.1em;color:var(--accent);margin-bottom:14px;display:block}
.feature h3{font-size:1rem;margin-bottom:6px}
.feature p{font-size:13.8px;color:var(--ink-3);margin:0}

/* bullets */
.ticks{list-style:none;padding:0;margin:0}
.ticks li{position:relative;padding-left:26px;margin:.55em 0;font-size:14.8px}
.ticks li::before{
  content:"";position:absolute;left:2px;top:.55em;width:11px;height:6px;
  border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg);
}
.ticks-lg li{font-size:15.5px;margin:.7em 0}

/* ---------- spec table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff;-webkit-overflow-scrolling:touch}
table.data{width:100%;border-collapse:collapse;font-size:14.3px;min-width:560px}
table.data th,table.data td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line-2);vertical-align:top}
table.data thead th{background:var(--soft);color:var(--ink);font-weight:650;font-size:12.5px;letter-spacing:.03em;text-transform:uppercase;white-space:nowrap;border-bottom:1px solid var(--line)}
table.data tbody tr:last-child td{border-bottom:none}
table.data tbody tr:hover td{background:var(--soft-2)}
table.data td strong{white-space:nowrap}
.mono{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* spec key-value */
.kv{display:grid;grid-template-columns:repeat(2,1fr);gap:0 34px;border-top:1px solid var(--line)}
.kv div{display:flex;justify-content:space-between;gap:18px;padding:13px 0;border-bottom:1px solid var(--line-2);font-size:14.3px}
.kv dt{color:var(--ink-3)}
.kv dd{margin:0;color:var(--ink);font-weight:600;text-align:right}

/* callout */
.callout{border-radius:var(--radius);padding:26px 28px;background:var(--accent-soft);border:1px solid #FFD9CB}
.callout h3{color:#8A2A0C;font-size:1.06rem;margin-bottom:10px;display:flex;align-items:center;gap:9px}
.callout h3::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
.callout ul{margin-bottom:0}
.callout li{color:#7A3B26;font-size:14.4px}
.callout li strong{color:#5E2A16}
.callout-neutral{background:var(--soft);border-color:var(--line)}
.callout-neutral h3{color:var(--ink)}
.callout-neutral h3::before{background:var(--ink)}
.callout-neutral li{color:var(--ink-3)}
.callout-neutral li strong{color:var(--ink)}

/* cert strip */
.cert-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(126px,1fr));gap:8px}
.cert{
  display:flex;align-items:center;flex-wrap:wrap;column-gap:7px;row-gap:4px;
  padding:9px 12px 10px;border-radius:8px;
  border:1px solid var(--line);background:#fff;font-size:12.5px;font-weight:650;color:var(--ink-2);
}
.cert::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ok);flex:0 0 auto}
.cert-code{flex:0 0 auto}
.cert-more{
  flex:1 0 100%;padding-left:13px;font-style:normal;font-weight:500;
  font-size:10px;line-height:1.35;color:var(--ink-3);letter-spacing:.01em;
}

/* faq */
.faq-list{border-top:1px solid var(--line)}
details.faq{border-bottom:1px solid var(--line);background:#fff}
details.faq summary{
  cursor:pointer;list-style:none;padding:18px 44px 18px 0;position:relative;
  font-weight:650;color:var(--ink);font-size:15.4px;line-height:1.5;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{
  content:"";position:absolute;right:8px;top:50%;
  width:11px;height:11px;margin-top:-7px;
  border-right:1.8px solid var(--ink-3);border-bottom:1.8px solid var(--ink-3);
  transform:rotate(45deg);transition:transform .18s;
}
details.faq[open] summary::after{transform:rotate(-135deg);margin-top:-3px}
details.faq .faq-a{padding:0 40px 20px 0;font-size:14.6px;color:var(--ink-3)}
details.faq .faq-a p:last-child{margin-bottom:0}

/* cta band */
.cta-band{
  background:var(--navy);color:#C9D2E0;border-radius:var(--radius-lg);
  padding:46px 48px;display:flex;align-items:center;justify-content:space-between;gap:40px;
  position:relative;overflow:hidden;isolation:isolate;
}
.cta-band::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(520px 240px at 88% 10%,rgba(240,78,35,.32),transparent 62%)}
.cta-band h2{color:#fff;margin-bottom:8px;font-size:clamp(1.35rem,2.4vw,1.85rem)}
.cta-band p{margin:0;color:#A9B6C9;font-size:14.6px;max-width:52ch}
.cta-band .actions{display:flex;gap:11px;flex-wrap:wrap;flex:0 0 auto}

/* split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split-rev .split-media{order:2}

/* steps */
.steps{counter-reset:s;display:grid;gap:20px;grid-template-columns:repeat(3,1fr)}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;counter-increment:s}
.step::before{content:"0" counter(s);display:block;font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--accent);margin-bottom:12px}
.step h3{font-size:1rem;margin-bottom:6px}
.step p{font-size:14px;color:var(--ink-3);margin:0}

/* form */
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.2px;font-weight:650;color:var(--ink);margin-bottom:7px}
.field label .req{color:var(--accent)}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border:1px solid #D8DEE8;border-radius:9px;
  font-size:14.6px;font-family:inherit;color:var(--ink);background:#fff;
  transition:border-color .16s,box-shadow .16s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(240,78,35,.13);
}
.field textarea{min-height:110px;resize:vertical}
.field .hint{font-size:12px;color:var(--muted);margin-top:6px}
.form-note{font-size:12.4px;color:var(--muted);margin-top:14px;line-height:1.6}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field-row>*{min-width:0}
@media (max-width:620px){.field-row{grid-template-columns:1fr;gap:0}.field-row .field{margin-bottom:18px}}
.field-row .field{margin-bottom:0}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-status{margin-top:14px;padding:13px 15px;border-radius:10px;font-size:13.8px;line-height:1.55;display:none}
.form-status.is-ok{display:block;background:#EAF7EE;border:1px solid #BFE3CB;color:#1B6B37}
.form-status.is-err{display:block;background:#FDEDEA;border:1px solid #F3C6BC;color:#8C2C1B}
.form-status a{text-decoration:underline;font-weight:600}
.form-alt{display:block;text-align:center;margin-top:16px;font-size:13.4px;color:var(--muted)}
.form-alt a{color:var(--accent);font-weight:650}
.btn[disabled]{opacity:.6;cursor:progress;transform:none}

/* footer */
.site-footer{background:#0A111D;color:#8E9CB0;padding:64px 0 30px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:44px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.09)}
.site-footer h4{color:#fff;font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:16px;font-weight:700}
.site-footer a{color:#8E9CB0;transition:color .14s}
.site-footer a:hover{color:#fff}
.footer-list{list-style:none;padding:0;margin:0}
.footer-list li{margin:.5em 0}
.footer-brand .brand-name{color:#fff}
.footer-brand p{font-size:13.6px;line-height:1.65;max-width:36ch;margin-top:16px}
.footer-wa{display:inline-flex;align-items:center;gap:7px;white-space:nowrap;margin-top:18px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);padding:9px 13px;border-radius:9px;color:#fff;font-weight:650;font-size:12.8px}
.footer-wa svg{width:16px;height:16px;flex:0 0 auto}
.footer-wa svg{width:16px;height:16px;flex:0 0 auto}
.footer-wa:hover{background:rgba(255,255,255,.11)}
.footer-hours{margin-top:13px;font-size:12.4px;color:rgba(255,255,255,.5);letter-spacing:.015em}
.footer-social{display:flex;gap:9px;margin-top:18px}
.footer-social .soc{
  width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);color:#fff;
  transition:background .18s,border-color .18s,transform .18s;
}
.footer-social .soc svg{width:16px;height:16px;fill:currentColor}
.footer-social .soc:hover{background:var(--accent);border-color:var(--accent);transform:translateY(-1px)}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:24px;font-size:12.6px;color:#66748A}
.qr-box{background:#fff;border-radius:10px;padding:8px;width:104px;margin-top:14px;position:relative}
.qr-box img{display:block;width:100%;height:auto;border-radius:6px}
.qr-box.is-missing{min-height:104px;display:grid;place-items:center;background:#F1F3F7;border:1px dashed #C9D0DA;color:#98A2B3;font-size:9px;text-align:center;letter-spacing:.06em;line-height:1.5;padding:8px}
.qr-box.is-missing::after{content:"WeChat QR";font-size:9.5px;letter-spacing:.1em;color:#98A2B3}
.qr-cap{font-size:11.5px;color:#66748A;margin-top:7px}

/* floating whatsapp */
.wa-float{
  position:fixed;right:18px;bottom:18px;z-index:90;
  display:none;align-items:center;gap:9px;
  background:var(--accent);color:#fff;font-weight:650;font-size:14px;
  padding:13px 18px;border-radius:999px;box-shadow:0 12px 30px -8px rgba(240,78,35,.6);
}
.wa-float svg{width:19px;height:19px}

/* prose (blog) */
.prose{font-size:16.6px;line-height:1.78;color:var(--ink-2);max-width:74ch}
.prose h2{font-size:1.5rem;margin:2.1em 0 .55em}
.prose h3{font-size:1.15rem;margin:1.7em 0 .5em}
.prose p{margin:0 0 1.15em}
.prose ul,.prose ol{margin:0 0 1.2em}
.prose li{margin:.45em 0}
.prose blockquote{
  margin:1.6em 0;padding:2px 0 2px 20px;border-left:3px solid var(--accent);
  color:var(--ink-3);font-style:normal;
}
.prose table{margin:1.6em 0}
.prose figure{margin:1.8em 0}
.prose figcaption{font-size:12.6px;color:var(--muted);margin-top:9px}
.prose a{color:var(--accent-d);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
.prose hr{border:none;border-top:1px solid var(--line);margin:2.4em 0}
.post-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--muted);margin-bottom:26px}
.post-meta span{display:inline-flex;align-items:center;gap:6px}

/* misc */
.pill-row{display:flex;flex-wrap:wrap;gap:8px}
.pill{font-size:12.4px;font-weight:600;padding:6px 12px;border-radius:999px;background:var(--soft);color:var(--ink-3);border:1px solid var(--line)}
.hr{height:1px;background:var(--line);border:none;margin:0}
.anchor-list{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
.anchor-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:13px 16px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-weight:600;color:var(--ink-2);background:#fff}
.anchor-list a:hover{border-color:#CBD3DF;background:var(--soft-2);color:var(--ink)}
.anchor-list a::after{content:"\2192";color:var(--accent);font-weight:700}
.muted{color:var(--muted)}
.small{font-size:13px}
.sr-only,.lang span.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;pointer-events:none}
.footnote{font-size:12.4px;color:var(--muted);margin-top:14px;line-height:1.65}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:64px 0 60px}
  .hero-visual{max-width:560px}
  .features,.features-6{grid-template-columns:repeat(2,1fr)}
  .g-4{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:32px}
  .split-rev .split-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .nav-menu{
    position:fixed;inset:70px 0 auto 0;background:#fff;flex-direction:column;
    align-items:stretch;gap:0;padding:10px 16px 24px;margin:0;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-m);
    max-height:calc(100vh - 70px);overflow-y:auto;
    display:none;
  }
  .nav-menu.is-open{display:flex}
  .nav-item{width:100%}
  .nav-link{width:100%;justify-content:space-between;padding:13px 8px;border-radius:0;border-bottom:1px solid var(--line-2);font-size:15.5px}
  .nav-link:hover{background:transparent}
  .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;padding:0 0 10px;min-width:0;display:none}
  .nav-item.is-open .submenu{display:block}
  .nav-item .submenu{transition:none}
  .nav-right{margin:16px 0 0;justify-content:space-between;width:100%}
  .nav-right .btn{flex:1}
  .nav-right .brand-cta{display:none}
  .g-3,.g-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 26px;gap:24px}
  .section{padding:56px 0}
  .kv{grid-template-columns:1fr}
  .wa-float{display:inline-flex}
  .page-hero{padding:38px 0 42px}
  .hero-frame{aspect-ratio:4/3}
}
@media (max-width:560px){
  .container,.container-narrow{padding:0 18px}
  .g-4{grid-template-columns:1fr}
  .features,.features-6{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band .actions{width:100%}
  .cta-band .actions .btn{width:100%}
  .hero-meta{gap:16px}
  .hero-meta b{font-size:17px}
}

/* ---------- print ---------- */
@media print{
  .site-header,.site-footer,.wa-float,.cta-band,.hero-actions,.nav-toggle{display:none!important}
  body{font-size:11pt;color:#000}
  .hero,.page-hero{background:#fff!important;color:#000!important;padding:0 0 12pt}
  .hero::before,.hero::after,.page-hero::before{display:none}
  .hero h1,.page-hero h1,.hero p,.page-hero p{color:#000!important}
  .section{padding:14pt 0}
  .card,.table-wrap{border:1px solid #ccc;box-shadow:none;break-inside:avoid}
  details.faq{break-inside:avoid}
  details.faq .faq-a{display:block!important}
  a[href^="http"]::after{content:" (" attr(href) ")";font-size:8pt;color:#555}
}

/* --- series model cards --- */
.model-card{display:flex;flex-direction:column}
.model-card .card-body{display:flex;flex-direction:column;flex:1}
.model-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:4px}
.model-head h3{margin:0}
.model-depth{font-size:12px;font-weight:800;letter-spacing:.02em;color:var(--accent-d);
  background:rgba(255,107,0,.1);padding:3px 9px;border-radius:5px;white-space:nowrap}
.model-specs{margin:12px 0 14px;padding:0;display:grid;gap:0;border-top:1px solid var(--line)}
.model-specs>div{display:flex;justify-content:space-between;gap:12px;padding:7px 0;
  border-bottom:1px solid var(--line);font-size:12.6px}
.model-specs dt{color:var(--ink-3);margin:0}
.model-specs dd{margin:0;font-weight:650;color:var(--ink);text-align:right}
.model-card .card-body>p{font-size:13.4px;line-height:1.55;color:var(--ink-2);margin:0}

/* --- crate contents --- */
.box-list{list-style:none;margin:14px 0 0;padding:0;display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:4px 26px}
.box-list li{position:relative;padding-left:16px;font-size:13.2px;color:var(--ink-2);line-height:1.8}
.box-list li::before{content:"";position:absolute;left:0;top:.72em;width:5px;height:5px;
  border-radius:50%;background:var(--accent)}
@media (max-width:620px){.box-list{grid-template-columns:1fr}}