/* ==========================================================
   MAOXIN TECH · 端侧 AI 与边缘计算
   深色科技风 / 编号清单式布局
   ========================================================== */

:root{
  --bg:#080a0e;
  --bg-2:#0c1015;
  --bg-3:#11171e;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.14);
  --txt:#eef2f4;
  --txt-2:rgba(238,242,244,.66);
  --muted:#7f8d99;
  --acc:#ff8a1f;
  --acc-d:#e0620a;
  --acc-glow:rgba(255,138,31,.16);
  --r:4px;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --wrap:1280px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html,body{overflow-x:hidden}
body{
  margin:0;background:var(--bg);color:var(--txt);font-family:var(--sans);
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:clip;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;color:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.18;font-weight:700;letter-spacing:-.02em}
p{margin:0}
::selection{background:var(--acc);color:#05140e}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px}

/* ---------- 顶部信息条 ---------- */
.topline{background:#05070a;border-bottom:1px solid var(--line);font-size:12.5px;color:var(--muted)}
.topline .wrap{display:flex;align-items:center;justify-content:space-between;height:36px;gap:20px}
.topline .tl-l{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.topline b{color:var(--acc);font-weight:500;font-family:var(--mono);letter-spacing:.02em}
.topline .dot{width:4px;height:4px;border-radius:50%;background:var(--acc);display:inline-block;margin-right:7px;vertical-align:2px}
@media(max-width:820px){.topline .tl-r{display:none}}

/* ---------- 导航 ---------- */
.head{position:sticky;top:0;z-index:60;background:rgba(8,10,14,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:background .3s}
.head.solid{background:rgba(8,10,14,.96)}
.head-in{display:flex;align-items:center;gap:28px;height:74px}

.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.logo .mk{width:34px;height:34px;flex:0 0 auto;position:relative}
.logo .mk svg{width:100%;height:100%}
.logo-txt{display:flex;flex-direction:column;line-height:1.1}
.logo-txt strong{font-size:17px;letter-spacing:.04em}
.logo-txt span{font-family:var(--mono);font-size:9.5px;letter-spacing:.26em;color:var(--muted);margin-top:4px}

.nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav>li{position:relative}
.nav>li>a{display:block;padding:9px 14px;font-size:14px;color:var(--txt-2);white-space:nowrap;transition:color .2s;position:relative}
.nav>li>a:hover,.nav>li.on>a{color:var(--txt)}
.nav>li.on>a::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:1.5px;background:var(--acc)}
.drop{
  position:absolute;top:calc(100% + 6px);left:6px;min-width:184px;background:var(--bg-3);
  border:1px solid var(--line-2);padding:8px;opacity:0;visibility:hidden;transform:translateY(4px);
  transition:.22s;box-shadow:0 20px 44px -24px #000;
}
.nav>li:hover .drop{opacity:1;visibility:visible;transform:none}
.drop a{display:block;padding:9px 12px;font-size:13.5px;color:var(--txt-2);border-left:2px solid transparent;transition:.18s}
.drop a:hover{color:var(--acc);border-left-color:var(--acc);background:rgba(255,138,31,.06)}

.nav-cta{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;
  font-size:13.5px;font-weight:600;border:1px solid var(--line-2);color:var(--txt);background:transparent;
  border-radius:var(--r);transition:.22s;white-space:nowrap;
}
.btn:hover{border-color:var(--acc);color:var(--acc)}
.btn-acc{background:var(--acc);border-color:var(--acc);color:#04120c}
.btn-acc:hover{background:#5bffc4;border-color:#5bffc4;color:#04120c}
.btn-lg{padding:15px 30px;font-size:14.5px}
.btn .ar{transition:transform .24s}
.btn:hover .ar{transform:translateX(3px)}

.burger{display:none;width:42px;height:42px;border:1px solid var(--line-2);background:none;border-radius:var(--r);position:relative;flex:0 0 auto;margin-left:auto}
.burger i{position:absolute;left:11px;right:11px;height:1.5px;background:var(--txt);transition:.26s}
.burger i:nth-child(1){top:15px}
.burger i:nth-child(2){top:20.5px}
.burger i:nth-child(3){top:26px}
body.menu-open .burger i:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
body.menu-open .burger i:nth-child(2){opacity:0}
body.menu-open .burger i:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

.drawer{
  position:fixed;inset:0;z-index:70;background:var(--bg);transform:translateX(100%);visibility:hidden;
  transition:transform .36s cubic-bezier(.65,0,.3,1),visibility .36s;overflow:auto;padding:22px 24px 60px;
}
body.menu-open .drawer{transform:none;visibility:visible}
.drawer .d-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer .d-close{width:40px;height:40px;border:1px solid var(--line-2);background:none;border-radius:var(--r);font-size:20px}
.drawer nav a{display:block;padding:14px 0;border-bottom:1px solid var(--line);font-size:16.5px;font-weight:600}
.drawer nav .sub{display:flex;flex-wrap:wrap;gap:8px 14px;padding:10px 0 14px}
.drawer nav .sub a{padding:0;border:0;font-size:13px;font-weight:400;color:var(--muted)}
.drawer .d-foot{margin-top:26px;font-size:13px;color:var(--txt-2);line-height:2}
.drawer .d-foot b{display:block;font-family:var(--mono);font-size:21px;color:var(--acc);margin:8px 0 14px}

@media(max-width:1120px){.nav-cta .btn{display:none}}
@media(max-width:1040px){
  .nav{display:none}
  .burger{display:block}
  .head-in{height:66px}
}

/* ---------- 通用 ---------- */
.sec{padding:100px 0;position:relative}
.sec-sm{padding:64px 0}
.sec-alt{background:var(--bg-2)}
.sec-line{border-top:1px solid var(--line)}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:11px;
  letter-spacing:.22em;color:var(--acc);text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:20px;height:1px;background:var(--acc)}
h2.big{font-size:clamp(26px,3.2vw,40px)}
h2.big em{font-style:normal;display:block;font-size:.52em;font-weight:400;color:var(--txt-2);margin-top:14px;letter-spacing:0;line-height:1.6}
.sec-head{margin-bottom:54px}
.sec-head.row{display:flex;align-items:flex-end;justify-content:space-between;gap:36px;flex-wrap:wrap}
.lead{color:var(--txt-2);font-size:15.5px;max-width:660px;margin-top:18px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:96px 0 0;background:
  radial-gradient(900px 480px at 78% 12%,rgba(255,138,31,.1),transparent 66%),
  radial-gradient(700px 400px at 12% 88%,rgba(255,106,0,.09),transparent 70%),var(--bg);}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 60% 30%,#000,transparent 75%);
  -webkit-mask-image:radial-gradient(circle at 60% 30%,#000,transparent 75%);
}
.hero-in{position:relative;z-index:2;display:grid;grid-template-columns:1.04fr .96fr;gap:52px;align-items:center;padding-bottom:72px}
.tagline{
  display:inline-flex;align-items:center;gap:9px;padding:7px 13px;border:1px solid rgba(255,138,31,.3);
  background:rgba(255,138,31,.07);border-radius:100px;font-size:12.5px;color:var(--acc);margin-bottom:26px;
}
.tagline .pulse{width:6px;height:6px;border-radius:50%;background:var(--acc);box-shadow:0 0 0 0 rgba(255,138,31,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(255,138,31,0)}100%{box-shadow:0 0 0 0 rgba(255,138,31,0)}}
.hero h1{font-size:clamp(34px,5vw,66px);letter-spacing:-.035em;line-height:1.08}
.hero h1 em{font-style:normal;color:var(--acc);display:block}
.hero .sub{margin-top:24px;font-size:16.5px;color:var(--txt-2);max-width:480px}
.hero .acts{display:flex;gap:12px;margin-top:34px;flex-wrap:wrap}
.hero .meta{display:flex;gap:34px;margin-top:46px;flex-wrap:wrap}
.hero .meta div{font-family:var(--mono);font-size:11.5px;color:var(--muted);letter-spacing:.08em}
.hero .meta b{display:block;font-family:var(--sans);font-size:22px;color:var(--txt);letter-spacing:-.01em;margin-top:6px;font-weight:600}

.hero-vis{position:relative}
.hero-vis .frame{position:relative;border:1px solid var(--line-2);background:linear-gradient(160deg,rgba(255,138,31,.05),rgba(255,255,255,.015));padding:26px}
.hero-vis .frame::after{content:"";position:absolute;inset:0;border:1px solid transparent;box-shadow:inset 0 0 60px rgba(255,138,31,.06);pointer-events:none}
.hero-vis .corner{position:absolute;width:12px;height:12px;border:1px solid var(--acc)}
.hero-vis .c1{left:-1px;top:-1px;border-right:0;border-bottom:0}
.hero-vis .c2{right:-1px;top:-1px;border-left:0;border-bottom:0}
.hero-vis .c3{left:-1px;bottom:-1px;border-right:0;border-top:0}
.hero-vis .c4{right:-1px;bottom:-1px;border-left:0;border-top:0}
.hero-vis .cap{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-family:var(--mono);font-size:10.5px;color:var(--muted);letter-spacing:.14em;
  margin-top:16px;text-transform:uppercase;
  border:0;background:none;padding:0;border-radius:0;
}
.hero-vis .cap::before{display:none}
.hero-vis .cap span{white-space:nowrap}
.hero-vis svg{width:100%;height:auto;display:block}

@media(max-width:980px){
  .hero{padding:64px 0 0}
  .hero-in{grid-template-columns:1fr;gap:44px;padding-bottom:56px}
  .hero h1{font-size:clamp(30px,7.6vw,50px)}
  .hero-vis{max-width:520px;width:100%}
  .hero .meta{gap:26px;margin-top:36px}
}
@media(max-width:560px){
  .hero h1{font-size:clamp(28px,8.4vw,38px);line-height:1.14}
  .hero .sub{font-size:15px;margin-top:18px}
  .hero .meta b{font-size:19px}
  .hero-vis .frame{padding:16px}
  .hero-vis .cap{font-size:9.5px;letter-spacing:.08em;margin-top:12px}
  .tagline{font-size:11.5px;margin-bottom:20px}
}

/* 跑马灯 */
.ticker{border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden;background:#05070a}
.ticker-in{display:flex;gap:0;white-space:nowrap;animation:slide 34s linear infinite}
.ticker span{
  font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.16em;
  padding:15px 30px;border-right:1px solid var(--line);
}
.ticker span b{color:var(--acc);font-weight:500}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media(prefers-reduced-motion:reduce){.ticker-in{animation:none}}

/* ---------- 平台列表（横向行） ---------- */
.plat{border-top:1px solid var(--line)}
.plat-row{
  display:grid;grid-template-columns:56px 1.05fr 1.6fr auto;gap:32px;align-items:center;
  padding:34px 10px;border-bottom:1px solid var(--line);position:relative;transition:.28s;
}
.plat-row::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,138,31,.07),transparent 60%);opacity:0;transition:.28s}
.plat-row:hover::before{opacity:1}
.plat-row .no{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.1em}
.plat-row h3{font-size:21px;letter-spacing:-.01em}
.plat-row h3 small{display:block;font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.14em;margin-top:7px;font-weight:400;text-transform:uppercase}
.plat-row p{font-size:14px;color:var(--txt-2);line-height:1.8}
.plat-row .num{font-family:var(--mono);font-size:clamp(20px,2vw,27px);color:var(--acc);text-align:right;line-height:1;white-space:nowrap}
.plat-row .num small{display:block;font-size:10px;color:var(--muted);letter-spacing:.16em;margin-top:8px;text-transform:uppercase}
@media(max-width:900px){
  .plat-row{grid-template-columns:1fr;gap:14px;padding:26px 4px}
  .plat-row .no{display:none}
  .plat-row .num{text-align:left}
}

/* ---------- 方案网格 ---------- */
.sol-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.sol{
  background:var(--bg-2);padding:38px 34px 34px;position:relative;overflow:hidden;transition:.3s;min-height:280px;
  display:flex;flex-direction:column;
}
.sol:hover{background:var(--bg-3)}
.sol .idx{font-family:var(--mono);font-size:11.5px;color:var(--muted);letter-spacing:.14em;display:flex;justify-content:space-between}
.sol .idx span{color:var(--acc)}
.sol h3{font-size:23px;margin:22px 0 12px}
.sol p{font-size:14px;color:var(--txt-2);flex:1}
.sol .go{
  margin-top:24px;display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--acc);
  font-family:var(--mono);letter-spacing:.06em;
}
.sol .go i{font-style:normal;transition:transform .24s}
.sol:hover .go i{transform:translateX(4px)}
.sol .glyph{position:absolute;right:-10px;bottom:-14px;width:150px;height:150px;opacity:.13;pointer-events:none;transition:.35s}
.sol:hover .glyph{opacity:.24;transform:scale(1.04)}
@media(max-width:820px){.sol-grid{grid-template-columns:1fr}.sol{padding:30px 24px;min-height:0}}

/* ---------- 服务清单 ---------- */
.svc-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}
.svc-side{position:sticky;top:110px}
.svc-side h2{font-size:clamp(25px,2.8vw,36px)}
.svc-side p{color:var(--txt-2);font-size:15px;margin-top:18px}
.svc-side .btn{margin-top:28px}
.svc-list{border-top:1px solid var(--line)}
.svc-item{border-bottom:1px solid var(--line);padding:24px 0;transition:.25s}
.svc-item .h{display:flex;align-items:baseline;gap:18px}
.svc-item .no{font-family:var(--mono);font-size:11.5px;color:var(--acc);letter-spacing:.1em;flex:0 0 auto}
.svc-item h3{font-size:18px;font-weight:600;flex:1}
.svc-item .plus{font-family:var(--mono);color:var(--muted);font-size:14px}
.svc-item ul{margin-top:14px;padding-left:38px;display:block}
.svc-item ul li{font-size:13.8px;color:var(--txt-2);padding:5px 0;position:relative}
.svc-item ul li::before{content:"";position:absolute;left:-16px;top:14px;width:5px;height:1px;background:var(--acc)}
.svc-item:hover h3{color:var(--acc)}
@media(max-width:960px){.svc-layout{grid-template-columns:1fr;gap:34px}.svc-side{position:static}}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.flow div{background:var(--bg);padding:30px 26px}
.flow b{font-family:var(--mono);font-size:11.5px;color:var(--acc);letter-spacing:.14em;display:block;margin-bottom:16px}
.flow h4{font-size:16.5px;margin-bottom:10px}
.flow p{font-size:13.5px;color:var(--txt-2)}
@media(max-width:860px){.flow{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.flow{grid-template-columns:1fr}}

/* ---------- 页面头部 ---------- */
.phead{position:relative;padding:80px 0 66px;border-bottom:1px solid var(--line);overflow:hidden;
  background:radial-gradient(760px 320px at 82% 0%,rgba(255,138,31,.09),transparent 70%),var(--bg-2)}
.phead::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:48px 48px;mask-image:linear-gradient(120deg,#000,transparent 68%);
  -webkit-mask-image:linear-gradient(120deg,#000,transparent 68%);
}
.phead .wrap{position:relative;z-index:2}
.crumb{font-family:var(--mono);font-size:11.5px;color:var(--muted);letter-spacing:.08em;margin-bottom:20px}
.crumb a:hover{color:var(--acc)}
.crumb i{font-style:normal;margin:0 8px;opacity:.5}
.phead h1{font-size:clamp(30px,4vw,50px);letter-spacing:-.03em}
.phead .sub{margin-top:18px;color:var(--txt-2);font-size:15.5px;max-width:720px}

/* ---------- 规格表 ---------- */
.spec-wrap{display:grid;grid-template-columns:240px minmax(0,1fr);gap:56px;align-items:start}
.spec-wrap>*{min-width:0}
.spec-nav{position:sticky;top:100px}
.spec-nav .sn-t{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--muted);padding-bottom:14px;border-bottom:1px solid var(--line);text-transform:uppercase}
.spec-nav ul{margin-top:4px}
.spec-nav li a{display:block;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--txt-2);transition:.2s}
.spec-nav li a:hover,.spec-nav li a.on{color:var(--acc);padding-left:6px}
.spec-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.spec-hint{display:none;font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.08em;margin-bottom:12px}
.spec-table{width:100%;border-collapse:collapse;font-size:14px}
.spec-table th{
  text-align:left;font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--muted);
  font-weight:400;padding:0 16px 13px;border-bottom:1px solid var(--line-2);text-transform:uppercase;white-space:nowrap;
}
.spec-table td{padding:15px 16px;border-bottom:1px solid var(--line);vertical-align:top;color:var(--txt-2)}
.spec-table td:first-child{color:var(--txt);width:210px}
.spec-table tr:hover td{background:rgba(255,138,31,.03)}
@media(max-width:900px){
  .spec-wrap{grid-template-columns:1fr;gap:30px}
  .spec-nav{position:static}
  .spec-nav ul{display:flex;flex-wrap:wrap;gap:8px}
  .spec-nav li a{border:1px solid var(--line);padding:7px 12px;font-size:13px}
  .spec-nav .sn-t{display:none}
  .spec-table{min-width:620px}
  .spec-table td:first-child{width:104px;min-width:104px;white-space:nowrap}
  .spec-table th,.spec-table td{padding:13px 12px}
  .spec-table th{font-size:9.5px;letter-spacing:.08em}
  .spec-hint{display:block}
}

/* 能力标签 */
.caps{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.cap{
  display:inline-flex;align-items:center;gap:10px;padding:12px 18px;border:1px solid var(--line-2);
  background:rgba(255,255,255,.02);font-size:14px;border-radius:var(--r);
}
.cap::before{content:"";width:6px;height:6px;background:var(--acc);border-radius:1px;transform:rotate(45deg)}

/* 方案详情 */
.sol-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center}
.sol-hero .kicker{font-family:var(--mono);font-size:11.5px;color:var(--acc);letter-spacing:.16em;margin-bottom:16px}
.sol-hero h1{font-size:clamp(28px,3.6vw,44px)}
.sol-hero p{margin-top:18px;color:var(--txt-2);font-size:15.5px}
.sol-hero .aside{border:1px solid var(--line);padding:28px;background:var(--bg-2)}
.sol-hero .aside h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--muted);margin-bottom:18px}
.sol-hero .aside li{font-size:14px;padding:9px 0;border-bottom:1px dashed var(--line);color:var(--txt-2)}
.sol-hero .aside li:last-child{border:0}
@media(max-width:900px){.sol-hero{grid-template-columns:1fr;gap:30px}}

.block{margin-top:64px}
.block-h{display:flex;align-items:baseline;gap:16px;margin-bottom:26px}
.block-h h2{font-size:24px}
.block-h b{font-family:var(--mono);font-size:11px;color:var(--acc);letter-spacing:.14em}

.prose p{color:var(--txt-2);font-size:15.5px;margin-bottom:18px}
.prose p strong{color:var(--txt);font-weight:600}
.prose .hl{color:var(--acc)}

.adv-list{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.adv-list div{background:var(--bg-2);padding:26px 24px}
.adv-list h4{font-size:16px;margin-bottom:10px}
.adv-list p{font-size:13.8px;color:var(--txt-2)}
@media(max-width:760px){.adv-list{grid-template-columns:1fr}}

.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:20px 0}
.faq summary{
  list-style:none;cursor:pointer;font-size:16px;font-weight:600;display:flex;justify-content:space-between;gap:20px;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--acc);font-size:18px}
.faq details[open] summary::after{content:"−"}
.faq p{margin-top:14px;color:var(--txt-2);font-size:14.5px}

/* 其他方案 */
.others{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.others a{background:var(--bg-2);padding:24px;transition:.24s}
.others a:hover{background:var(--bg-3)}
.others small{font-family:var(--mono);font-size:10.5px;color:var(--muted);letter-spacing:.14em}
.others h4{font-size:16px;margin-top:12px}
.others span{display:block;font-size:12.5px;color:var(--acc);margin-top:12px;font-family:var(--mono)}
@media(max-width:760px){.others{grid-template-columns:1fr}}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.contact-grid .cell{background:var(--bg-2);padding:34px 32px}
.contact-grid .cell small{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--acc);text-transform:uppercase;margin-bottom:12px}
.contact-grid .cell b{display:block;font-size:20px;line-height:1.5;font-weight:600;word-break:break-word}
.contact-grid .cell p{font-size:13.5px;color:var(--muted);margin-top:9px}
.contact-grid .cell.wide{grid-column:1/-1}
.contact-grid .cell .mono{font-family:var(--mono);font-size:17px;letter-spacing:.01em}
@media(max-width:820px){
  .contact-grid{grid-template-columns:1fr}
  .contact-grid .cell.wide{grid-column:auto}
  .contact-grid .cell{padding:26px 22px}
  .contact-grid .cell b{font-size:17px}
  .contact-grid .cell .mono{font-size:15.5px;word-break:normal}
}

.qr{border:1px solid var(--line-2);background:#fff;padding:10px;width:136px;height:136px}
.qr svg{width:100%;height:100%;display:block}

/* 表单 */
.form{background:var(--bg-2);border:1px solid var(--line);padding:36px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:12.5px;margin-bottom:8px;color:var(--txt-2)}
.field label i{color:var(--acc);font-style:normal;margin-left:3px}
.field input,.field textarea,.field select{
  width:100%;padding:12px 14px;border:1px solid var(--line-2);background:#070a0d;color:var(--txt);
  font:inherit;font-size:14.5px;border-radius:var(--r);transition:.2s;
}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:0;border-color:var(--acc);box-shadow:0 0 0 3px rgba(255,138,31,.1)}
.form-ok{display:none;margin-top:16px;padding:13px 16px;border-left:2px solid var(--acc);background:rgba(255,138,31,.07);font-size:14px;color:var(--acc)}
.form-ok.show{display:block}
@media(max-width:640px){.form{padding:24px}.form-row{grid-template-columns:1fr}}

/* ---------- 页脚 ---------- */
.foot{background:#05070a;border-top:1px solid var(--line);padding:70px 0 0;margin-top:0}
.foot-top{display:grid;grid-template-columns:1.4fr .7fr .7fr 1.1fr;gap:44px;padding-bottom:46px;border-bottom:1px solid var(--line)}
.foot h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.2em;color:var(--muted);text-transform:uppercase;margin-bottom:18px}
.foot a{color:var(--txt-2);font-size:13.5px;transition:.2s}
.foot a:hover{color:var(--acc)}
.foot-links li{margin-bottom:10px}
.foot-brand p{font-size:13.5px;color:var(--muted);line-height:1.9;margin-top:18px;max-width:320px}
.foot-brand .tel{display:block;font-family:var(--mono);font-size:22px;color:var(--acc);margin-top:18px}
.foot-contact li{font-size:13.5px;color:var(--txt-2);margin-bottom:12px;line-height:1.7;display:flex;gap:9px}
.foot-contact li em{font-style:normal;color:var(--acc);font-family:var(--mono);font-size:11px;flex:0 0 auto;padding-top:3px;letter-spacing:.06em}
.foot-bot{display:flex;justify-content:space-between;gap:18px;padding:22px 0 28px;font-size:12px;color:#5c6873;flex-wrap:wrap}
@media(max-width:900px){.foot-top{grid-template-columns:1fr 1fr;gap:32px}.foot-brand{grid-column:1/-1}}
@media(max-width:540px){.foot-top{grid-template-columns:1fr}}

/* 悬浮 */
.floaty{position:fixed;right:22px;bottom:26px;z-index:50;display:flex;flex-direction:column;gap:10px}
.floaty a,.floaty button{
  width:46px;height:46px;border-radius:50%;background:var(--bg-3);border:1px solid var(--line-2);
  display:grid;place-items:center;color:var(--txt);transition:.22s;position:relative;
}
.floaty a:hover,.floaty button:hover{border-color:var(--acc);color:var(--acc)}
.floaty .hi{background:var(--acc);border-color:var(--acc);color:#04120c}
.floaty .hi:hover{background:#5bffc4;color:#04120c}
.floaty svg{width:19px;height:19px}
.floaty .tip{
  position:absolute;right:56px;top:50%;transform:translateY(-50%);background:#000;color:#fff;
  font-size:11.5px;padding:5px 10px;white-space:nowrap;opacity:0;pointer-events:none;transition:.2s;border:1px solid var(--line-2);
}
.floaty a:hover .tip,.floaty button:hover .tip{opacity:1}
@media(max-width:760px){.floaty{right:12px;bottom:14px}.floaty a,.floaty button{width:42px;height:42px}}

/* 动画 */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="2"]{transition-delay:.08s}
.reveal[data-d="3"]{transition-delay:.16s}
.reveal[data-d="4"]{transition-delay:.24s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}