/* ==========================================================================
   银芒开发 YINMANG — 设计系统 v2
   方向：编辑式排版 / 发丝线 / 单一朱红强调 / 金属银氛围
   ========================================================================== */

:root{
  --ink:#12110F;
  --ink-2:#2B2925;
  --ink-3:#403D37;
  --paper:#F3F1EB;
  --paper-2:#E9E6DD;
  --white:#FFFFFF;
  --line:#D8D3C7;
  --line-2:#E6E2D8;
  --muted:#6C6861;
  --muted-2:#98948C;
  --accent:#BE3A26;
  --accent-2:#9E2F1E;
  --accent-soft:#F3E3DE;

  --r:2px;
  --wrap:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;background:var(--paper);color:var(--ink-2);
  font-family:var(--sans);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;line-height:1.15;letter-spacing:-.025em;text-wrap:balance}
p{margin:0;text-wrap:pretty}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--accent);color:#fff}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px}
.wrap-narrow{max-width:920px}

/* ---------- 排版基础 ---------- */

.kicker{
  display:flex;align-items:center;gap:14px;
  font-family:var(--mono);font-size:11px;font-weight:500;
  letter-spacing:.2em;text-transform:uppercase;color:var(--muted);
  margin-bottom:26px;
}
.kicker i{font-style:normal;color:var(--accent);font-weight:600}
.kicker::after{content:"";flex:1;height:1px;background:var(--line);max-width:80px}
.on-ink .kicker{color:rgba(243,241,235,.55)}
.on-ink .kicker::after{background:rgba(243,241,235,.22)}

.sec{padding:120px 0;border-top:1px solid var(--line);position:relative}
.sec-paper{background:var(--paper)}
.sec-white{background:var(--white)}
.sec-ink{background:var(--ink);color:rgba(243,241,235,.72);border-top-color:rgba(243,241,235,.12)}
.sec-ink h2,.sec-ink h3,.sec-ink h4{color:var(--paper)}
.sec-flush{border-top:none}

.sec-head{max-width:760px;margin-bottom:64px}
.sec-head h2{font-size:clamp(28px,3.5vw,44px);line-height:1.16;margin-bottom:20px}
.sec-head p{font-size:16.5px;line-height:1.78;color:var(--muted)}
.sec-ink .sec-head p{color:rgba(243,241,235,.6)}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .kicker{justify-content:center}
.sec-head.center .kicker::after{display:none}

.lead{font-size:17px;line-height:1.8}

/* ---------- 按钮 ---------- */

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:52px;padding:0 28px;border-radius:var(--r);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease);
}
.btn svg{width:16px;height:16px;flex:none;transition:transform .3s var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn-ink{background:var(--ink);color:var(--paper)}
.btn-ink:hover{background:var(--accent);color:#fff}
.btn-line{border-color:var(--ink);color:var(--ink)}
.btn-line:hover{background:var(--ink);color:var(--paper)}
.btn-paper{background:var(--paper);color:var(--ink)}
.btn-paper:hover{background:var(--accent);color:#fff}
.btn-line-light{border-color:rgba(243,241,235,.35);color:var(--paper)}
.btn-line-light:hover{border-color:var(--paper);background:rgba(243,241,235,.08)}
.btn-sm{height:44px;padding:0 20px;font-size:14px}

.tlink{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:11.5px;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;color:var(--ink);padding-bottom:4px;
  border-bottom:1px solid var(--line);transition:color .25s,border-color .25s;
}
.tlink svg{width:14px;height:14px;transition:transform .3s var(--ease)}
.tlink:hover{color:var(--accent);border-color:var(--accent)}
.tlink:hover svg{transform:translate(2px,-2px)}

.ico{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 头部 ---------- */

.hd{position:fixed;top:0;left:0;right:0;z-index:120}
.hd::before{
  content:"";position:absolute;inset:0;border-bottom:1px solid transparent;
  background:transparent;transition:background .35s,border-color .35s,backdrop-filter .35s;
}
.hd.solid::before{
  background:rgba(243,241,235,.94);backdrop-filter:saturate(160%) blur(14px);
  border-bottom-color:var(--line);
}
.hd-in{
  position:relative;z-index:2;max-width:var(--wrap);margin:0 auto;padding:0 32px;
  height:78px;display:flex;align-items:center;gap:44px;
}

.logo{display:flex;align-items:center;gap:12px;flex:none}
/* 芯片轮廓随底色反白，晶核恒为朱红；单色印刷时轮廓变实心，晶核融进去 */
.logo-mark{
  width:30px;height:30px;flex:none;display:block;color:var(--paper);
  transition:transform .6s var(--ease);
}
.logo:hover .logo-mark{transform:rotate(-7deg)}
.logo-txt{display:flex;flex-direction:column;line-height:1.05}
.logo-name{font-size:17.5px;font-weight:700;letter-spacing:.02em;color:var(--paper);transition:color .3s}
.logo-sub{font-family:var(--mono);font-size:8px;letter-spacing:.34em;color:rgba(243,241,235,.42);margin-top:5px;transition:color .3s}

.nav{display:flex;align-items:center;gap:32px;margin-left:auto}
.nav a{
  position:relative;font-size:14.5px;font-weight:500;color:rgba(243,241,235,.72);
  padding:6px 0;transition:color .22s;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav a:hover{color:var(--paper)}
.nav a:hover::after{transform:scaleX(1)}
.nav a.on{color:var(--paper)}
.nav a.on::after{transform:scaleX(1);background:var(--accent)}

.hd-act{display:flex;align-items:center;gap:18px;flex:none}
.hd-tel{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:13px;font-weight:500;letter-spacing:.02em;
  color:rgba(243,241,235,.72);transition:color .22s;
}
.hd-tel:hover{color:var(--paper)}
.hd-tel svg{width:14px;height:14px}
.hd-btn{
  display:inline-flex;align-items:center;height:42px;padding:0 20px;border-radius:var(--r);
  background:var(--paper);color:var(--ink);font-size:14px;font-weight:600;
  transition:background .25s,color .25s;
}
.hd-btn:hover{background:var(--accent);color:#fff}

/* 滚动后浅底 */
.hd.solid .logo-mark{color:var(--ink)}
.hd.solid .logo-name{color:var(--ink)}
.hd.solid .logo-sub{color:var(--muted-2)}
.hd.solid .nav a{color:var(--muted)}
.hd.solid .nav a:hover{color:var(--ink)}
.hd.solid .nav a.on{color:var(--ink)}
.hd.solid .hd-tel{color:var(--ink-2)}
.hd.solid .hd-btn{background:var(--ink);color:var(--paper)}
.hd.solid .hd-btn:hover{background:var(--accent);color:#fff}

.burger{
  display:none;width:44px;height:44px;border:1px solid rgba(243,241,235,.3);
  border-radius:var(--r);background:transparent;color:var(--paper);
  align-items:center;justify-content:center;cursor:pointer;
}
.hd.solid .burger{border-color:var(--line);color:var(--ink)}
.burger svg{width:19px;height:19px}

/* 抽屉 */
.dw{position:fixed;inset:0;z-index:140;background:rgba(18,17,15,.5);opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}
.dw.open{opacity:1;visibility:visible}
.dw-p{
  position:absolute;top:0;right:0;bottom:0;width:min(88vw,360px);background:var(--paper);
  transform:translateX(100%);transition:transform .4s var(--ease);
  display:flex;flex-direction:column;padding:24px 24px 32px;
}
.dw.open .dw-p{transform:none}
.dw-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:24px;border-bottom:1px solid var(--line)}
.dw-top .logo-mark{color:var(--ink)}
.dw-top .logo-name{color:var(--ink)}
.dw-top .logo-sub{color:var(--muted-2)}
.dw-x{width:40px;height:40px;border:1px solid var(--line);background:none;border-radius:var(--r);display:grid;place-items:center;cursor:pointer;color:var(--ink)}
.dw-x svg{width:17px;height:17px}
.dw-nav{display:flex;flex-direction:column;padding-top:8px}
.dw-nav a{
  display:flex;align-items:baseline;gap:14px;
  padding:18px 0;border-bottom:1px solid var(--line-2);
  font-size:19px;font-weight:600;color:var(--ink);
}
.dw-nav a span{font-family:var(--mono);font-size:10px;color:var(--muted-2);letter-spacing:.1em}
.dw-nav a.on{color:var(--accent)}
.dw-f{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:28px}

/* ---------- Hero ---------- */

.hero{position:relative;background:var(--ink);color:var(--paper);overflow:hidden;padding:168px 0 0}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.hero-rays{
  position:absolute;inset:0;
  background:repeating-conic-gradient(from 205deg at 8% 112%,
    rgba(243,241,235,.16) 0deg .3deg, rgba(243,241,235,0) .3deg 2.4deg);
  mask-image:radial-gradient(circle at 8% 112%, #000 0%, rgba(0,0,0,.55) 34%, transparent 66%);
  -webkit-mask-image:radial-gradient(circle at 8% 112%, #000 0%, rgba(0,0,0,.55) 34%, transparent 66%);
}
.hero-glow{
  position:absolute;left:-18%;bottom:-58%;width:1100px;height:1100px;border-radius:50%;
  background:radial-gradient(circle,rgba(190,58,38,.22) 0%,rgba(190,58,38,0) 62%);
  filter:blur(10px);
}
.hero-in{position:relative;z-index:2}
.hero h1{
  font-size:clamp(40px,6.2vw,82px);line-height:1.06;letter-spacing:-.04em;
  color:var(--paper);font-weight:700;max-width:15em;margin-bottom:30px;
}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{
  font-size:17px;line-height:1.85;color:rgba(243,241,235,.62);max-width:620px;margin-bottom:40px;
}
.hero-sub b{color:var(--paper);font-weight:600}
.hero-act{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:22px}
.hero-note{
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:rgba(243,241,235,.55);
  text-transform:uppercase;
}
.hero-index{
  position:absolute;right:32px;top:50%;transform:translateY(-50%);
  display:flex;flex-direction:column;gap:14px;text-align:right;z-index:2;
}
.hero-index span{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;color:rgba(243,241,235,.45);
  text-transform:uppercase;
}
.hero-index span b{color:var(--paper);font-weight:500}

.stat-row{
  position:relative;z-index:2;margin-top:96px;
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(243,241,235,.14);
}
.stat{padding:38px 32px 42px;border-right:1px solid rgba(243,241,235,.14)}
.stat:first-child{padding-left:0}
.stat:last-child{border-right:none}
.stat b{
  display:block;font-size:clamp(30px,3.4vw,46px);font-weight:700;
  letter-spacing:-.035em;line-height:1;color:var(--paper);font-variant-numeric:tabular-nums;
}
.stat b i{font-style:normal;font-size:.46em;color:var(--accent);margin-left:3px;font-weight:600;letter-spacing:0}
.stat s{
  display:block;text-decoration:none;margin-top:14px;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;
  text-transform:uppercase;color:rgba(243,241,235,.42);
}

/* ---------- 行业条 ---------- */

.band{border-bottom:1px solid var(--line);background:var(--paper)}
.band-in{display:flex;align-items:center;gap:40px;padding:26px 0;flex-wrap:wrap}
.band-l{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted-2);flex:none;
}
.band-list{display:flex;gap:14px 36px;flex-wrap:wrap;flex:1}
.band-list span{font-size:14.5px;color:var(--ink-2);font-weight:500}
.band-list span::before{content:"·";color:var(--accent);margin-right:10px;font-weight:700}
.band-list span:first-child::before{display:none}

/* ---------- 服务索引（行式列表） ---------- */

.svc-list{border-top:1px solid var(--line)}
.svc-row{
  display:grid;grid-template-columns:52px minmax(150px,.8fr) minmax(0,1.6fr) 186px 30px;
  gap:28px;align-items:center;
  padding:26px 0;border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),color .3s var(--ease),padding .3s var(--ease);
}
.svc-no{
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--muted-2);
  transition:color .3s;
}
.svc-name{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:-.01em;transition:color .3s}
.svc-desc{font-size:14px;line-height:1.7;color:var(--muted);transition:color .3s}
.svc-tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end}
.svc-tags span{
  font-family:var(--mono);font-size:10px;letter-spacing:.08em;
  color:var(--muted);border:1px solid var(--line);padding:3px 7px;border-radius:2px;
  transition:border-color .3s,color .3s;
}
.svc-arw{display:grid;place-items:center;color:var(--muted-2);transition:color .3s,transform .35s var(--ease)}
.svc-arw svg{width:18px;height:18px}

.svc-row:hover{background:var(--ink);padding-left:20px;padding-right:20px}
.svc-row:hover .svc-no{color:var(--accent)}
.svc-row:hover .svc-name{color:var(--paper)}
.svc-row:hover .svc-desc{color:rgba(243,241,235,.6)}
.svc-row:hover .svc-tags span{color:rgba(243,241,235,.6);border-color:rgba(243,241,235,.24)}
.svc-row:hover .svc-arw{color:var(--accent);transform:translateX(4px)}

/* ---------- 案例卡（发丝线网格） ---------- */

.case-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);border-left:1px solid var(--line);
  background:var(--white);
}
.case-card{
  display:flex;flex-direction:column;
  padding:30px 28px 26px;
  border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--white);cursor:pointer;
  transition:background .28s var(--ease);
}
.case-card:hover{background:var(--paper)}
.case-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:26px}
.case-cat{
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink);border:1px solid var(--line);padding:3px 8px;border-radius:2px;
}
.case-year{font-family:var(--mono);font-size:10px;letter-spacing:.1em;color:var(--muted-2)}
.case-metric{
  font-size:40px;font-weight:700;letter-spacing:-.04em;line-height:1;color:var(--accent);
  margin-bottom:6px;font-variant-numeric:tabular-nums;
}
.case-metric s{display:block;text-decoration:none;font-family:var(--mono);font-size:10px;letter-spacing:.12em;color:var(--muted-2);margin-top:9px;font-weight:400}
.case-card h3{font-size:18px;line-height:1.4;margin:22px 0 10px;letter-spacing:-.015em}
.case-card p{font-size:13.5px;line-height:1.72;color:var(--muted)}
.case-foot{
  margin-top:auto;padding-top:20px;display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.case-stack{display:flex;gap:6px;flex-wrap:wrap}
.case-stack span{font-family:var(--mono);font-size:9.5px;letter-spacing:.06em;color:var(--muted-2)}
.case-more{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink);display:inline-flex;align-items:center;gap:5px}
.case-more svg{width:12px;height:12px}
.case-card:hover .case-more{color:var(--accent)}

/* ---------- 筛选 ---------- */

.fbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:28px}
.chip{
  height:38px;padding:0 16px;border-radius:2px;cursor:pointer;
  border:1px solid var(--line);background:transparent;color:var(--ink-2);
  font-size:13.5px;font-weight:500;transition:all .22s var(--ease);
  display:inline-flex;align-items:center;gap:8px;
}
.chip em{font-style:normal;font-family:var(--mono);font-size:10px;color:var(--muted-2)}
.chip:hover{border-color:var(--ink)}
.chip.on{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.chip.on em{color:rgba(243,241,235,.5)}

.sbox{position:relative;margin-left:auto;width:280px;flex:none}
.sbox svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--muted-2)}
.sbox input{
  width:100%;height:40px;border-radius:2px;border:1px solid var(--line);
  background:transparent;padding:0 14px 0 40px;font-size:14px;font-family:inherit;color:var(--ink);
  outline:none;transition:border-color .2s;
}
.sbox input::placeholder{color:var(--muted-2)}
.sbox input:focus{border-color:var(--ink)}

.res-n{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--muted);margin-bottom:22px}
.res-n b{color:var(--ink);font-weight:600}
.empty{
  grid-column:1/-1;padding:80px 24px;text-align:center;color:var(--muted);
  border-right:1px solid var(--line);border-bottom:1px solid var(--line);
}
.empty b{display:block;color:var(--ink);font-size:16px;margin-bottom:8px}

/* ---------- AI 专区 ---------- */

.tabs{display:flex;flex-wrap:wrap;border-bottom:1px solid rgba(243,241,235,.16);margin-bottom:56px}
.tab{
  position:relative;padding:18px 26px 18px 0;margin-right:26px;
  background:none;border:none;cursor:pointer;
  font-size:14.5px;font-weight:600;color:rgba(243,241,235,.45);
  transition:color .25s;display:flex;align-items:baseline;gap:9px;
}
.tab em{font-style:normal;font-family:var(--mono);font-size:9.5px;letter-spacing:.1em;color:rgba(243,241,235,.3)}
.tab::after{
  content:"";position:absolute;left:0;right:26px;bottom:-1px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .35s var(--ease);
}
.tab:hover{color:rgba(243,241,235,.8)}
.tab.on{color:var(--paper)}
.tab.on em{color:var(--accent)}
.tab.on::after{transform:scaleX(1)}

.tab-p{display:none}
.tab-p.on{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:start;animation:fade .5s var(--ease) both}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

.tab-p h3{font-size:clamp(22px,2.4vw,30px);line-height:1.25;margin-bottom:18px}
.tab-p > div > p{font-size:15.5px;line-height:1.8;color:rgba(243,241,235,.6);margin-bottom:32px}

.flist{display:flex;flex-direction:column}
.flist li{
  display:grid;grid-template-columns:26px 1fr;gap:14px;
  padding:16px 0;border-top:1px solid rgba(243,241,235,.12);
}
.flist li:last-child{border-bottom:1px solid rgba(243,241,235,.12)}
.flist b{display:block;font-size:14.5px;color:var(--paper);font-weight:600;margin-bottom:3px}
.flist span{font-size:13px;line-height:1.65;color:rgba(243,241,235,.5)}
.flist i{
  font-style:normal;font-family:var(--mono);font-size:10px;letter-spacing:.08em;
  color:var(--accent);padding-top:4px;
}

/* 终端面板 */
.term{border:1px solid rgba(243,241,235,.16);background:rgba(243,241,235,.028);border-radius:var(--r);display:flex;flex-direction:column}
.term-bar{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:13px 18px;border-bottom:1px solid rgba(243,241,235,.12);
  font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(243,241,235,.45);
}
.term-bar .live{display:inline-flex;align-items:center;gap:7px;color:var(--accent)}
.term-bar .live::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent)}
.term-body{padding:24px 22px;display:flex;flex-direction:column;gap:16px;flex:1}
.tq{font-size:13.5px;line-height:1.7;color:var(--paper);display:grid;grid-template-columns:18px 1fr;gap:8px}
.tq i{font-style:normal;font-family:var(--mono);color:var(--accent);font-size:12px}
.ta{font-size:13px;line-height:1.85;color:rgba(243,241,235,.68);padding-left:26px;border-left:1px solid rgba(243,241,235,.14)}
.ta b{color:var(--paper);font-weight:600}
.ta .hl{color:var(--accent);font-weight:600}
.term-foot{
  display:flex;justify-content:space-between;gap:12px;padding:13px 18px;
  border-top:1px solid rgba(243,241,235,.12);
  font-family:var(--mono);font-size:9.5px;letter-spacing:.1em;color:rgba(243,241,235,.35);
}

.ttrace{display:flex;flex-direction:column;gap:7px;padding-top:16px;border-top:1px solid rgba(243,241,235,.1)}
.ttrace i{
  font-style:normal;font-family:var(--mono);font-size:10px;letter-spacing:.04em;
  color:rgba(243,241,235,.38);display:flex;gap:10px;align-items:baseline;
}
.ttrace i::before{content:"→";color:var(--accent);flex:none}
.ttrace i b{color:rgba(243,241,235,.62);font-weight:500}
.ttrace i s{margin-left:auto;text-decoration:none;color:rgba(243,241,235,.28)}

/* ---------- 流程 ---------- */

.flow{display:grid;grid-template-columns:repeat(6,1fr);border-top:1px solid var(--line)}
.flow-s{padding:28px 24px 0 0;border-right:1px solid var(--line)}
.flow-s:last-child{border-right:none;padding-right:0}
.flow-no{font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--accent);margin-bottom:22px}
.flow-s h4{font-size:16px;margin-bottom:8px}
.flow-s p{font-size:13px;line-height:1.7;color:var(--muted)}

/* ---------- 数据 ---------- */

.nums{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.num{padding:36px 32px 8px;border-right:1px solid var(--line)}
.num:first-child{padding-left:0}
.num:last-child{border-right:none}
.num b{display:block;font-size:clamp(32px,3.6vw,48px);font-weight:700;letter-spacing:-.04em;line-height:1;color:var(--ink);font-variant-numeric:tabular-nums}
.num b i{font-style:normal;font-size:.42em;color:var(--accent);margin-left:3px}
.num s{display:block;text-decoration:none;font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);margin-top:14px}

/* ---------- 优势 ---------- */

.adv{display:grid;grid-template-columns:1fr 1fr;gap:0;border-top:1px solid var(--line)}
.adv-i{padding:34px 40px 34px 0;border-bottom:1px solid var(--line)}
.adv-i:nth-child(even){padding-left:40px;padding-right:0;border-left:1px solid var(--line)}
.adv-no{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;color:var(--muted-2);margin-bottom:16px}
.adv-i h4{font-size:17px;margin-bottom:9px}
.adv-i p{font-size:14px;line-height:1.75;color:var(--muted)}

/* ---------- 技术栈 ---------- */

.stack{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid rgba(243,241,235,.14)}
.stack-c{padding:30px 26px 34px 0;border-right:1px solid rgba(243,241,235,.14)}
.stack-c:last-child{border-right:none}
.stack-c h5{
  font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:rgba(243,241,235,.4);margin-bottom:20px;font-weight:500;
}
.stack-c li{font-size:13.5px;color:rgba(243,241,235,.78);padding:7px 0;display:flex;align-items:baseline;gap:9px}
.stack-c li::before{content:"";width:4px;height:1px;background:var(--accent);flex:none;transform:translateY(-3px)}

/* ---------- 评价 ---------- */

.quotes{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}
.qt{padding:34px 32px 34px 0;border-right:1px solid var(--line)}
.qt:last-child{border-right:none;padding-right:0}
.qt:nth-child(2),.qt:nth-child(3){padding-left:32px}
.qt p{font-size:15px;line-height:1.85;color:var(--ink-2);margin-bottom:26px}
.qt-w{display:flex;align-items:center;gap:12px;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;color:var(--muted-2);text-transform:uppercase}
.qt-w b{color:var(--ink);font-weight:600;letter-spacing:.02em}
.qt-w::before{content:"";width:22px;height:1px;background:var(--accent)}

/* ---------- CTA ---------- */

.cta{position:relative;background:var(--ink);color:rgba(243,241,235,.7);overflow:hidden;padding:88px 0;border-top:none}
.cta-bg{
  position:absolute;inset:0;
  background:repeating-conic-gradient(from 205deg at 92% 120%,
    rgba(243,241,235,.13) 0deg .3deg, rgba(243,241,235,0) .3deg 2.6deg);
  mask-image:radial-gradient(circle at 92% 120%, #000 0%, transparent 60%);
  -webkit-mask-image:radial-gradient(circle at 92% 120%, #000 0%, transparent 60%);
  pointer-events:none;
}
.cta-in{position:relative;z-index:2;display:grid;grid-template-columns:1.3fr .7fr;gap:56px;align-items:end}
.cta h2{font-size:clamp(26px,3.2vw,40px);color:var(--paper);line-height:1.18;margin-bottom:18px}
.cta p{font-size:15.5px;line-height:1.8;max-width:560px}
.cta-act{display:flex;flex-direction:column;gap:12px}
.cta-act .btn{width:100%}
.cta-note{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;color:rgba(243,241,235,.35);text-align:center;text-transform:uppercase}

/* ---------- 页头（内页） ---------- */

.ph{position:relative;background:var(--ink);color:rgba(243,241,235,.66);overflow:hidden;padding:150px 0 72px}
.ph-bg{
  position:absolute;inset:0;
  background:repeating-conic-gradient(from 205deg at 88% -30%,
    rgba(243,241,235,.12) 0deg .3deg, rgba(243,241,235,0) .3deg 2.6deg);
  mask-image:radial-gradient(circle at 88% -30%, #000 0%, transparent 62%);
  -webkit-mask-image:radial-gradient(circle at 88% -30%, #000 0%, transparent 62%);
  pointer-events:none;
}
.ph .wrap{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:rgba(243,241,235,.5);margin-bottom:28px}
.crumb a:hover{color:var(--paper)}
.crumb svg{width:11px;height:11px}
.ph h1{font-size:clamp(32px,4.4vw,58px);line-height:1.1;letter-spacing:-.035em;color:var(--paper);max-width:16em;margin-bottom:24px}
.ph p{font-size:16.5px;line-height:1.8;max-width:640px}

/* ---------- 服务详情 ---------- */

.sd{display:grid;grid-template-columns:.92fr 1.08fr;gap:72px;padding:64px 0;border-bottom:1px solid var(--line);align-items:start}
.sd:last-child{border-bottom:none}
.sd-no{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;color:var(--accent);margin-bottom:20px}
.sd h2{font-size:clamp(24px,2.8vw,34px);line-height:1.22;margin-bottom:18px}
.sd .lead{font-size:15.5px;line-height:1.82;color:var(--muted);margin-bottom:28px}
.sd-pts{display:grid;grid-template-columns:1fr 1fr;gap:10px 24px;margin-bottom:30px}
.sd-pts li{display:flex;gap:9px;font-size:13.5px;line-height:1.65;color:var(--ink-2)}
.sd-pts svg{width:14px;height:14px;color:var(--accent);flex:none;margin-top:4px;stroke-width:2.2}
.sd-panel{border:1px solid var(--line);background:var(--white);padding:8px 24px}
.sd-panel h5{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);padding:20px 0 12px;border-bottom:1px solid var(--line);font-weight:500}
.sd-r{display:grid;grid-template-columns:96px 1fr;gap:16px;padding:14px 0;border-bottom:1px solid var(--line-2);font-size:13.5px}
.sd-r:last-child{border-bottom:none}
.sd-r b{color:var(--muted-2);font-weight:500;font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;padding-top:3px}
.sd-r span{color:var(--ink-2)}

/* ---------- 报价 ---------- */

.price{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.pc{padding:36px 32px 34px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;flex-direction:column;background:var(--white)}
.pc.hot{background:var(--ink);color:rgba(243,241,235,.7)}
.pc.hot h4,.pc.hot .pn{color:var(--paper)}
.pc-tag{font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:16px;min-height:14px}
.pc h4{font-size:18px;margin-bottom:8px}
.pc .sub{font-size:13.5px;line-height:1.7;color:var(--muted);margin-bottom:26px;min-height:48px}
.pc.hot .sub{color:rgba(243,241,235,.55)}
.pn{font-size:34px;font-weight:700;letter-spacing:-.04em;line-height:1;color:var(--ink)}
.pn i{font-style:normal;font-size:13px;color:var(--muted);font-weight:400;letter-spacing:0;margin-left:6px}
.pc.hot .pn i{color:rgba(243,241,235,.45)}
.pcy{font-family:var(--mono);font-size:10px;letter-spacing:.12em;color:var(--muted-2);margin:10px 0 26px;text-transform:uppercase}
.pc.hot .pcy{color:rgba(243,241,235,.4)}
.pl{display:flex;flex-direction:column;gap:10px;margin-bottom:30px}
.pl li{display:flex;gap:9px;font-size:13.5px;line-height:1.65}
.pl svg{width:13px;height:13px;color:var(--accent);flex:none;margin-top:4px;stroke-width:2.4}
.pc .btn{margin-top:auto;width:100%}

/* ---------- FAQ ---------- */

.faq{border-top:1px solid var(--line)}
.fi{border-bottom:1px solid var(--line)}
.fq{
  width:100%;display:flex;align-items:center;gap:20px;text-align:left;
  padding:24px 0;background:none;border:none;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);font-family:inherit;line-height:1.6;
  transition:color .22s;
}
.fq:hover{color:var(--accent)}
.fq .pm{margin-left:auto;width:22px;height:22px;position:relative;flex:none}
.fq .pm::before,.fq .pm::after{
  content:"";position:absolute;background:currentColor;transition:transform .3s var(--ease),opacity .3s;
}
.fq .pm::before{left:0;right:0;top:50%;height:1px;transform:translateY(-50%)}
.fq .pm::after{top:0;bottom:0;left:50%;width:1px;transform:translateX(-50%)}
.fi.on .fq{color:var(--accent)}
.fi.on .pm::after{transform:translateX(-50%) rotate(90deg);opacity:0}
.fa{max-height:0;overflow:hidden;transition:max-height .4s var(--ease)}
.fa p{font-size:14.5px;line-height:1.85;color:var(--muted);padding:0 0 26px;max-width:840px}

/* ---------- 关于 ---------- */

.about-g{display:grid;grid-template-columns:1.05fr .95fr;gap:72px;align-items:start}
.about-v{background:var(--ink);color:rgba(243,241,235,.7);padding:40px;position:relative;overflow:hidden}
.about-v::before{
  content:"";position:absolute;inset:0;
  background:repeating-conic-gradient(from 210deg at 100% 0%,
    rgba(243,241,235,.1) 0deg .3deg, rgba(243,241,235,0) .3deg 2.8deg);
  mask-image:radial-gradient(circle at 100% 0%, #000 0%, transparent 62%);
  -webkit-mask-image:radial-gradient(circle at 100% 0%, #000 0%, transparent 62%);
}
.about-v > *{position:relative;z-index:2}
.about-q{font-size:20px;line-height:1.6;color:var(--paper);font-weight:600;letter-spacing:-.015em;margin-bottom:40px}
.about-q em{font-style:normal;color:var(--accent)}
.about-stats{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid rgba(243,241,235,.16)}
.about-stats div{padding:20px 0 16px;border-bottom:1px solid rgba(243,241,235,.16)}
.about-stats div:nth-child(odd){padding-right:20px;border-right:1px solid rgba(243,241,235,.16)}
.about-stats div:nth-child(even){padding-left:20px}
.about-stats b{display:block;font-size:24px;font-weight:700;color:var(--paper);letter-spacing:-.03em;line-height:1}
.about-stats s{display:block;text-decoration:none;font-family:var(--mono);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:rgba(243,241,235,.4);margin-top:9px}

.tl-i{
  display:grid;grid-template-columns:150px 1fr;gap:40px;
  padding:28px 0;border-top:1px solid var(--line);
}
.tl-i b{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--accent);font-weight:500}
.tl-i h4{font-size:16.5px;margin-bottom:7px}
.tl-i p{font-size:14px;line-height:1.75;color:var(--muted)}

.team{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.tm{padding:30px 26px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--white)}
.tm .role{font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.tm h4{font-size:16px;margin-bottom:8px}
.tm p{font-size:13px;line-height:1.7;color:var(--muted)}

.certs{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.cert{
  padding:22px 20px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:12px;font-size:13px;font-weight:600;color:var(--ink-2);background:var(--white);
}
.cert svg{width:17px;height:17px;color:var(--accent);flex:none}

/* ---------- 联系 ---------- */

.ct-g{display:grid;grid-template-columns:1.06fr .94fr;gap:72px;align-items:start}
.form-b{background:var(--white);border:1px solid var(--line);padding:40px 36px}
.form-b h3{font-size:21px;margin-bottom:8px}
.form-b > p{font-size:13.5px;color:var(--muted);margin-bottom:30px}
.fld{margin-bottom:20px}
.fld label{
  display:block;font-family:var(--mono);font-size:10px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);margin-bottom:9px;
}
.fld label em{color:var(--accent);font-style:normal}
.fld input,.fld textarea,.fld select{
  width:100%;border:1px solid var(--line);border-radius:var(--r);background:var(--paper);
  padding:13px 14px;font-size:14.5px;font-family:inherit;color:var(--ink);
  outline:none;transition:border-color .2s,background .2s;appearance:none;
}
.fld select{
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236C6861' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;background-size:15px;padding-right:38px;
}
.fld input:focus,.fld textarea:focus,.fld select:focus{border-color:var(--ink);background:var(--white)}
.fld textarea{resize:vertical;min-height:112px;line-height:1.75}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.ferr{font-family:var(--mono);font-size:10px;letter-spacing:.06em;color:var(--accent);margin-top:6px;display:none}
.fld.bad input,.fld.bad textarea,.fld.bad select{border-color:var(--accent);background:#FDF6F4}
.fld.bad .ferr{display:block}
.fnote{font-size:11.5px;line-height:1.7;color:var(--muted-2);margin-top:18px}
.fok{
  display:none;margin-top:20px;padding:15px 18px;border:1px solid #C6D9C6;background:#F1F7F1;
  color:#2C5B32;font-size:13px;align-items:center;gap:10px;
}
.fok.show{display:flex}
.fok svg{width:16px;height:16px;flex:none}

.cc{border-top:1px solid var(--line)}
.cc-i{display:grid;grid-template-columns:40px 1fr;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.cc-i .ic{width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r);display:grid;place-items:center;color:var(--ink)}
.cc-i .ic svg{width:17px;height:17px}
.cc-i b{display:block;font-family:var(--mono);font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);margin-bottom:5px;font-weight:500}
.cc-i strong{display:block;font-size:16px;color:var(--ink);font-weight:600;letter-spacing:.01em}
.cc-i small{display:block;font-size:12.5px;color:var(--muted);margin-top:4px;line-height:1.6}
.hrs{background:var(--ink);color:rgba(243,241,235,.65);padding:26px 24px;margin-top:24px}
.hrs h4{color:var(--paper);font-size:10px;margin-bottom:16px;font-family:var(--mono);letter-spacing:.14em;text-transform:uppercase;font-weight:500}
.hrs div{display:flex;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px solid rgba(243,241,235,.12);font-size:13px}
.hrs div:last-child{border-bottom:none}
.hrs b{color:var(--paper);font-weight:600}

/* ---------- 页脚 ---------- */

.ft{background:var(--ink);color:rgba(243,241,235,.55);padding:72px 0 0;border-top:1px solid rgba(243,241,235,.14)}
.ft-t{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;padding-bottom:56px;border-bottom:1px solid rgba(243,241,235,.14)}
.ft-b .logo-mark{color:var(--paper)}
.ft-b .logo-name{color:var(--paper)}
.ft-b .logo-sub{color:rgba(243,241,235,.4)}
.ft-b p{font-size:13.5px;line-height:1.8;color:rgba(243,241,235,.5);margin:22px 0 24px;max-width:320px}
.ft-c{display:flex;flex-direction:column;gap:10px;font-size:13.5px}
.ft-c a,.ft-c span{display:flex;align-items:center;gap:9px;color:rgba(243,241,235,.62);transition:color .2s}
.ft-c a:hover{color:var(--paper)}
.ft-c svg{width:14px;height:14px;color:rgba(243,241,235,.3);flex:none}
.ft-col h5{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;
  color:rgba(243,241,235,.35);margin-bottom:20px;font-weight:500;
}
.ft-col a{display:block;font-size:13.5px;color:rgba(243,241,235,.62);padding:6px 0;transition:color .2s}
.ft-col a:hover{color:var(--paper)}
.ft-n{font-size:11.5px;line-height:1.7;color:rgba(243,241,235,.42);padding:24px 0}
.ft-bot{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:22px 0 30px;border-top:1px solid rgba(243,241,235,.14);
  font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;color:rgba(243,241,235,.35);
}
.ft-bot .l{display:flex;gap:24px;flex-wrap:wrap}
.ft-bot a:hover{color:var(--paper)}

/* ---------- 弹窗 ---------- */

.md{position:fixed;inset:0;z-index:200;display:flex;align-items:center;justify-content:center;padding:24px;opacity:0;visibility:hidden;transition:opacity .28s,visibility .28s}
.md.open{opacity:1;visibility:visible}
.md-bg{position:absolute;inset:0;background:rgba(18,17,15,.55);backdrop-filter:blur(4px)}
.md-b{
  position:relative;z-index:2;width:100%;max-width:860px;max-height:88vh;overflow-y:auto;
  background:var(--paper);border:1px solid var(--ink);
  transform:translateY(14px);transition:transform .34s var(--ease);
}
.md.open .md-b{transform:none}
.md-x{
  position:absolute;top:18px;right:18px;z-index:3;width:36px;height:36px;
  border:1px solid rgba(243,241,235,.3);background:transparent;color:var(--paper);
  display:grid;place-items:center;cursor:pointer;transition:background .2s,color .2s;
}
.md-x:hover{background:var(--paper);color:var(--ink)}
.md-x svg{width:15px;height:15px}
.md-h{background:var(--ink);color:rgba(243,241,235,.6);padding:40px 44px 34px;position:relative;overflow:hidden}
.md-h::before{
  content:"";position:absolute;inset:0;
  background:repeating-conic-gradient(from 205deg at 100% 130%,
    rgba(243,241,235,.12) 0deg .3deg, rgba(243,241,235,0) .3deg 2.6deg);
  mask-image:radial-gradient(circle at 100% 130%, #000 0%, transparent 60%);
  -webkit-mask-image:radial-gradient(circle at 100% 130%, #000 0%, transparent 60%);
}
.md-h > *{position:relative;z-index:2}
.md-cat{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.md-h h3{font-size:clamp(21px,2.6vw,29px);color:var(--paper);line-height:1.3;margin-bottom:20px}
.md-m{display:flex;flex-wrap:wrap;gap:8px 26px;font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:rgba(243,241,235,.45)}
.md-m span{display:flex;align-items:center;gap:7px}
.md-m svg{width:12px;height:12px;color:rgba(243,241,235,.35)}
.md-bd{padding:36px 44px 44px}
.md-bd h4{
  font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--accent);margin-bottom:14px;font-weight:500;
}
.md-bd h4:not(:first-child){margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.md-bd p{font-size:14.5px;line-height:1.85;color:var(--ink-2)}
.md-l{display:flex;flex-direction:column}
.md-l li{display:grid;grid-template-columns:20px 1fr;gap:10px;font-size:14px;line-height:1.75;color:var(--ink-2);padding:10px 0;border-bottom:1px solid var(--line-2)}
.md-l li:last-child{border-bottom:none}
.md-l li::before{content:"—";color:var(--accent);font-family:var(--mono);font-size:11px;padding-top:3px}
.res{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.res div{padding:20px 18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--white)}
.res b{display:block;font-size:24px;font-weight:700;color:var(--accent);letter-spacing:-.03em;line-height:1.1}
.res s{display:block;text-decoration:none;font-family:var(--mono);font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);margin-top:8px}
.tags{display:flex;flex-wrap:wrap;gap:7px}
.tags span{font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;color:var(--ink-2);border:1px solid var(--line);padding:5px 9px}

/* ---------- 回到顶部 ---------- */

.top{
  position:fixed;right:28px;bottom:28px;z-index:90;width:44px;height:44px;
  border:1px solid var(--ink);background:var(--paper);color:var(--ink);
  display:grid;place-items:center;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:all .3s var(--ease);
}
.top.show{opacity:1;visibility:visible;transform:none}
.top:hover{background:var(--ink);color:var(--paper)}
.top svg{width:16px;height:16px}

/* ---------- 动效 ---------- */

[data-rv]{opacity:0;transform:translateY(16px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
[data-rv].in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */

@media (max-width:1120px){
  .nav{gap:22px}
  .hd-tel{display:none}
  .hero-index{display:none}
  .svc-row{grid-template-columns:44px minmax(150px,1fr) minmax(0,1.4fr) 34px;gap:22px}
  .svc-tags{display:none}
  .tab-p.on{grid-template-columns:1fr;gap:44px}
  .sd{grid-template-columns:1fr;gap:36px;padding:52px 0}
  .about-g,.ct-g{grid-template-columns:1fr;gap:44px}
  .cta-in{grid-template-columns:1fr;gap:34px;align-items:start}
  .ft-t{grid-template-columns:1fr 1fr;gap:40px}
  .stack{grid-template-columns:repeat(3,1fr)}
  .team,.certs{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:900px){
  .nav{display:none}
  .burger{display:flex}
  .hd-in{gap:20px;height:70px}
  .sec{padding:84px 0}
  .hero{padding:132px 0 0}
  .stat-row{margin-top:64px;grid-template-columns:1fr 1fr}
  .stat{padding:26px 20px 30px}
  .stat:nth-child(odd){padding-left:0}
  .stat:nth-child(2){border-right:none}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid rgba(243,241,235,.14)}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .price{grid-template-columns:1fr}
  .quotes{grid-template-columns:1fr}
  .qt{padding:30px 0 !important;border-right:none;border-bottom:1px solid var(--line)}
  .qt:last-child{border-bottom:none}
  .adv{grid-template-columns:1fr}
  .adv-i{padding:28px 0 !important;border-left:none !important}
  .flow{grid-template-columns:repeat(3,1fr)}
  .flow-s{padding:24px 20px 24px 0;border-bottom:1px solid var(--line)}
  .flow-s:nth-child(3n){border-right:none}
  .nums{grid-template-columns:1fr 1fr}
  .num{padding:26px 20px 6px}
  .num:nth-child(odd){padding-left:0}
  .num:nth-child(2){border-right:none}
  .tl-i{grid-template-columns:1fr;gap:8px;padding:22px 0}
  .md-h,.md-bd{padding-left:26px;padding-right:26px}
  .form-b{padding:28px 22px}
  .frow{grid-template-columns:1fr}
  .sbox{width:100%;margin-left:0;margin-top:4px}
}

@media (max-width:680px){
  .wrap{padding:0 20px}
  .hd-in{padding:0 20px}
  .hero h1{font-size:clamp(34px,9.2vw,46px)}
  .hero-sub{font-size:15.5px}
  .hero-act .btn{flex:1;min-width:150px}
  .case-grid{grid-template-columns:1fr}
  .stack{grid-template-columns:1fr 1fr}
  .stack-c{padding:24px 18px 26px 0}
  .team,.certs{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr 1fr}
  .flow-s:nth-child(3n){border-right:1px solid var(--line)}
  .flow-s:nth-child(2n){border-right:none}
  .svc-row{grid-template-columns:34px 1fr 28px;gap:16px;padding:20px 0}
  .svc-desc{display:none}
  .sd-pts{grid-template-columns:1fr}
  .res{grid-template-columns:1fr}
  .md{padding:0;align-items:flex-end}
  .md-b{max-height:92vh;border-left:none;border-right:none;border-bottom:none}
  .about-stats b{font-size:20px}
  .ft-t{grid-template-columns:1fr;gap:36px}
  .ft-bot{flex-direction:column;align-items:flex-start;gap:12px}
  .top{right:16px;bottom:16px;width:40px;height:40px}
  .band-in{gap:16px}
  .band-list{gap:10px 22px}
  .band-in{flex-direction:column;align-items:flex-start;gap:14px}
  .band-in .fbar{width:100%;margin-left:0}
  .ph h1{font-size:clamp(27px,7.6vw,34px)}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  [data-rv]{opacity:1;transform:none}
}