/* ==========================================================================
   惠团好店 — 品牌官网 主样式
   Brand: 安徽惠团网络科技有限公司  |  Primary: #8FC31F (来自LOGO)
   ========================================================================== */

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,textarea,select{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
::selection{background:var(--lime);color:#0B0F05}

/* ---------- Tokens ---------- */
:root{
  --lime:#8FC31F;
  --lime-2:#A9DC2F;
  --lime-3:#6E9C16;
  --lime-4:#4C6E0B;
  --lime-soft:#EFF6DC;
  --lime-line:#DCE9BD;

  --ink:#0D1207;
  --ink-2:#151B0D;
  --ink-3:#232B17;

  --body:#3B4632;
  --muted:#6E7A61;
  --line:#E4E8D9;
  --cream:#F7F8F0;
  --cream-2:#F1F3E7;
  --white:#fff;
  --warm:#FF7A2F;

  --max:min(1240px,92vw);
  --pad:clamp(20px,4vw,48px);
  --r-sm:10px;
  --r:16px;
  --r-lg:24px;
  --r-xl:34px;

  --shadow-s:0 2px 10px rgba(20,30,8,.06);
  --shadow:0 24px 60px -30px rgba(18,26,6,.35);
  --shadow-l:0 40px 90px -40px rgba(18,26,6,.45);

  --font:"HarmonyOS Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"SF Mono",ui-monospace,"JetBrains Mono",Menlo,Consolas,monospace;

  --ease:cubic-bezier(.22,.61,.36,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
}

html{scroll-padding-top:88px}
body{
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--body);
  background:var(--white);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.nav-open{overflow:hidden}

/* ---------- Layout ---------- */
.wrap{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:var(--pad)}
.section{padding-block:clamp(64px,9vw,132px);position:relative}
.section--tight{padding-block:clamp(48px,6vw,84px)}
.section--cream{background:var(--cream)}
.section--dark{background:var(--ink);color:#D7DEC9}
.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4{color:#fff}

/* ---------- Typography ---------- */
h1,h2,h3,h4{color:var(--ink);font-weight:700;line-height:1.15;letter-spacing:-.02em;text-wrap:balance}
.h1{font-size:clamp(38px,6.4vw,84px);line-height:1.04;letter-spacing:-.035em}
.h2{font-size:clamp(28px,4vw,52px);line-height:1.14;letter-spacing:-.03em}
.h3{font-size:clamp(21px,2.2vw,28px);line-height:1.3}
.h4{font-size:clamp(17px,1.5vw,20px);line-height:1.4}
.lead{font-size:clamp(15px,1.35vw,18px);line-height:1.9;color:var(--muted)}
.p-lg{font-size:clamp(16px,1.3vw,18px);line-height:1.95}
.acc{color:var(--lime-3)}
.acc-bg{background:linear-gradient(transparent 62%,rgba(143,195,31,.32) 0)}
.dark .lead,.section--dark .lead{color:#9FAE8C}

.eyebrow{
  display:inline-flex;align-items:center;gap:12px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--lime-3);font-weight:600;margin-bottom:20px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor;opacity:.8}
.section--dark .eyebrow{color:var(--lime-2)}
.eyebrow .num{font-family:var(--mono);letter-spacing:.05em;opacity:.75}

.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:clamp(24px,5vw,80px);margin-bottom:clamp(36px,4.5vw,64px)}
.sec-head .txt{max-width:720px}
.sec-head__side{flex:0 0 auto;max-width:310px;padding-bottom:6px}
@media(max-width:900px){.sec-head{flex-direction:column;align-items:flex-start}.sec-head__side{max-width:none}}

/* ---------- Buttons ---------- */
.btn{
  --bg:var(--lime);--fg:#0B0F05;
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:52px;padding:0 26px;border-radius:100px;border:1px solid transparent;
  background:var(--bg);color:var(--fg);font-size:15px;font-weight:600;letter-spacing:.01em;
  cursor:pointer;white-space:nowrap;
  transition:transform .35s var(--ease),background .3s,box-shadow .35s,color .3s,border-color .3s;
  box-shadow:0 10px 30px -14px rgba(143,195,31,.9);
}
.btn:hover{transform:translateY(-2px);background:var(--lime-2);box-shadow:0 18px 40px -16px rgba(143,195,31,.85)}
.btn:active{transform:translateY(0)}
.btn svg{width:16px;height:16px;transition:transform .35s var(--ease)}
.btn:hover svg{transform:translateX(3px)}

.btn--dark{--bg:var(--ink);--fg:#fff;box-shadow:0 12px 30px -16px rgba(13,18,7,.8)}
.btn--dark:hover{background:var(--ink-3);box-shadow:0 18px 40px -18px rgba(13,18,7,.7)}
.btn--ghost{--bg:transparent;--fg:var(--ink);border-color:rgba(13,18,7,.18);box-shadow:none}
.btn--ghost:hover{background:rgba(13,18,7,.04);border-color:rgba(13,18,7,.4)}
.btn--light{--bg:rgba(255,255,255,.1);--fg:#fff;border-color:rgba(255,255,255,.3);backdrop-filter:blur(8px);box-shadow:none}
.btn--light:hover{background:rgba(255,255,255,.18);border-color:rgba(255,255,255,.55)}
.btn--sm{height:44px;padding:0 20px;font-size:14px}

.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);padding-bottom:4px;transition:.3s}
.link-arrow svg{width:14px;height:14px;transition:transform .35s var(--ease)}
.link-arrow:hover{border-color:var(--lime);color:var(--lime-3)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- Header ---------- */
.hdr{position:fixed;inset:0 0 auto;z-index:120;transition:background .4s,box-shadow .4s,backdrop-filter .4s}
.hdr__in{display:flex;align-items:center;justify-content:space-between;gap:24px;height:78px;transition:height .4s var(--ease)}
.hdr__brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.hdr__brand img{width:40px;height:40px;border-radius:50%;transition:transform .5s var(--ease)}
.hdr__brand:hover img{transform:rotate(-8deg) scale(1.04)}
.hdr__brandtxt{display:flex;flex-direction:column;justify-content:center}
.hdr__brand b{display:block;font-size:16px;font-weight:700;letter-spacing:.02em;color:#fff;line-height:1.1}
.hdr__brandtxt span{display:block;font-size:10px;letter-spacing:.14em;color:rgba(255,255,255,.62);text-transform:uppercase;margin-top:5px;line-height:1}
.hdr.is-solid .hdr__brandtxt span,.hdr--static .hdr__brandtxt span{color:var(--muted)}

.hdr__nav{display:flex;align-items:center;gap:4px}
.hdr__nav a{
  position:relative;padding:10px 15px;border-radius:100px;font-size:14.5px;font-weight:500;
  color:rgba(255,255,255,.82);transition:color .3s,background .3s;
}
.hdr__nav a::after{content:"";position:absolute;left:15px;right:15px;bottom:6px;height:2px;border-radius:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease)}
.hdr__nav a:hover{color:#fff}
.hdr__nav a:hover::after,.hdr__nav a.is-active::after{transform:scaleX(1)}
.hdr__nav a.is-active{color:#fff;font-weight:600}

.hdr__right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.hdr__tel{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:#fff;letter-spacing:.02em}
.hdr__tel svg{width:16px;height:16px;color:var(--lime)}
.hdr__tel:hover{color:var(--lime)}

/* scrolled / light-page state */
.hdr.is-solid{background:rgba(255,255,255,.92);backdrop-filter:blur(18px) saturate(160%);box-shadow:0 1px 0 var(--line),0 14px 40px -30px rgba(13,18,7,.4)}
.hdr.is-solid .hdr__in{height:66px}
.hdr.is-solid .hdr__brand b{color:var(--ink)}
.hdr.is-solid .hdr__brand span{color:var(--muted)}
.hdr.is-solid .hdr__nav a{color:var(--body)}
.hdr.is-solid .hdr__nav a:hover,.hdr.is-solid .hdr__nav a.is-active{color:var(--ink)}
.hdr.is-solid .hdr__tel{color:var(--ink)}
.hdr.is-solid .hdr__tel:hover{color:var(--lime-3)}
.hdr.is-solid .btn--light{--bg:var(--ink);--fg:#fff;border-color:transparent}



/* page with no dark hero: header starts solid */
.hdr--static{background:rgba(255,255,255,.92);backdrop-filter:blur(18px) saturate(160%);box-shadow:0 1px 0 var(--line)}
.hdr--static .hdr__brand b{color:var(--ink)}
.hdr--static .hdr__brand span{color:var(--muted)}
.hdr--static .hdr__nav a{color:var(--body)}
.hdr--static .hdr__nav a.is-active,.hdr--static .hdr__nav a:hover{color:var(--ink)}
.hdr--static .hdr__tel{color:var(--ink)}
.hdr--static .btn--light{--bg:var(--ink);--fg:#fff;border-color:transparent}

/* burger */
.burger{display:none;width:44px;height:44px;border:0;background:transparent;position:relative;cursor:pointer;padding:0}
.burger i{position:absolute;left:11px;right:11px;height:2px;background:#fff;border-radius:2px;transition:.35s var(--ease)}
.burger i:nth-child(1){top:16px}
.burger i:nth-child(2){top:22px}
.burger i:nth-child(3){top:28px}
.hdr.is-solid .burger i,.hdr--static .burger i{background:var(--ink)}
body.nav-open .burger i:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.nav-open .burger i:nth-child(2){opacity:0}
body.nav-open .burger i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* drawer */
.drawer{position:fixed;inset:0;z-index:110;background:var(--ink);color:#fff;padding:100px var(--pad) 40px;display:flex;flex-direction:column;gap:6px;transform:translateY(-102%);transition:transform .55s var(--ease-out);overflow-y:auto}
body.nav-open .drawer{transform:none}
.drawer a.d-link{display:flex;align-items:baseline;gap:14px;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:26px;font-weight:600;color:#fff;letter-spacing:-.01em}
.drawer a.d-link i{font-family:var(--mono);font-size:12px;font-style:normal;color:var(--lime)}
.drawer__foot{margin-top:auto;padding-top:36px;display:grid;gap:14px}
.drawer__foot .tel{font-size:26px;font-weight:700;color:var(--lime);letter-spacing:-.01em}
.drawer__foot p{font-size:13px;color:#8B9A78;line-height:1.8}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:calc(100svh - 78px);display:flex;flex-direction:column;justify-content:flex-start;padding-top:calc(78px + clamp(30px,4.4vh,64px));padding-bottom:0;overflow:hidden;background:var(--ink);isolation:isolate}
.hero__bg{position:absolute;inset:0;z-index:-2}
.hero__bg img{width:100%;height:100%;object-fit:cover;object-position:50% 42%;transform:scale(1.06);animation:heroZoom 18s var(--ease-out) forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero__bg::after{content:"";position:absolute;inset:0;background:
  linear-gradient(100deg,rgba(9,13,4,.94) 0%,rgba(9,13,4,.82) 38%,rgba(9,13,4,.35) 66%,rgba(9,13,4,.55) 100%),
  linear-gradient(to top,rgba(9,13,4,.96) 0%,rgba(9,13,4,.1) 42%,transparent 70%)}
.hero__noise{position:absolute;inset:0;z-index:-1;opacity:.5;background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);background-size:4px 4px;mix-blend-mode:overlay;pointer-events:none}

.hero__in{position:relative;padding-block:0 clamp(22px,2.8vw,40px)}
.hero__top{display:inline-flex;align-items:center;gap:10px;padding:7px 8px 7px 14px;border:1px solid rgba(255,255,255,.22);border-radius:100px;background:rgba(255,255,255,.07);backdrop-filter:blur(10px);margin-bottom:26px}
.hero__top span{font-size:12.5px;letter-spacing:.04em;color:rgba(255,255,255,.85)}
.hero__top b{margin-left:2px;font-size:11.5px;font-weight:600;color:#0B0F05;background:var(--lime);padding:4px 10px;border-radius:100px;letter-spacing:.02em}
.hero__slogan{display:flex;align-items:center;gap:14px;margin:-8px 0 16px;font-size:clamp(13px,1.15vw,15.5px);font-weight:500;letter-spacing:.34em;color:var(--lime-2)}
.hero__slogan::before{content:"";flex:0 0 34px;height:1px;background:var(--lime)}
.hero h1{color:#fff;max-width:14em}
.hero h1 em{font-style:normal;color:var(--lime-2);position:relative}
.hero__sub{max-width:600px;margin-top:26px;font-size:clamp(15px,1.3vw,17.5px);line-height:1.95;color:rgba(255,255,255,.74)}
.hero__acts{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:36px}
.hero__meta{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:34px}
.hero__meta li{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.62);letter-spacing:.02em}
.hero__meta svg{width:15px;height:15px;color:var(--lime);flex:0 0 auto}

.hero>.wrap:not(.hero__in){margin-top:auto;padding-top:clamp(20px,3.6vh,56px)}
.hero__stats{position:relative;border-top:1px solid rgba(255,255,255,.14);display:grid;grid-template-columns:repeat(4,1fr)}
.hero__stats li{padding:26px 22px 30px;border-right:1px solid rgba(255,255,255,.1)}
.hero__stats li:last-child{border-right:0}
.hero__stats b{display:block;white-space:nowrap;font-size:clamp(28px,3.4vw,44px);font-weight:700;color:#fff;line-height:1;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.hero__stats b em{font-style:normal;font-size:.55em;color:var(--lime);margin-left:2px}
.hero__stats li>span{display:block;margin-top:11px;font-size:12.5px;color:rgba(255,255,255,.55);letter-spacing:.03em}
@media(max-width:820px){
  .hero__stats{grid-template-columns:repeat(2,1fr)}
  .hero__stats li:nth-child(2){border-right:0}
  .hero__stats li:nth-child(1),.hero__stats li:nth-child(2){border-bottom:1px solid rgba(255,255,255,.1)}
  .hero__stats li{padding:20px 16px 24px}
}

/* ---------- Marquee ---------- */
.marquee{overflow:hidden;background:var(--lime);color:#0B0F05;padding-block:13px;border-block:1px solid rgba(13,18,7,.12)}
.marquee__track{display:flex;width:max-content;animation:marquee 38s linear infinite}
.marquee:hover .marquee__track{animation-play-state:paused}
.marquee span{display:inline-flex;align-items:center;gap:22px;padding-right:22px;font-size:14px;font-weight:600;letter-spacing:.06em;white-space:nowrap}
.marquee span::after{content:"";width:5px;height:5px;border-radius:50%;background:rgba(13,18,7,.45)}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- Page hero (sub pages) ---------- */
.phero{padding-top:calc(78px + clamp(48px,7vw,96px));padding-bottom:clamp(40px,6vw,72px);background:var(--cream);position:relative;overflow:hidden}
.phero::before{content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(143,195,31,.2),transparent 68%);pointer-events:none}
.phero__crumb{display:flex;gap:10px;font-size:12.5px;color:var(--muted);margin-bottom:22px;letter-spacing:.04em}
.phero__crumb a:hover{color:var(--lime-3)}
.phero__crumb i{font-style:normal;opacity:.45}
.phero h1{max-width:20em;font-size:clamp(32px,5vw,62px)}
.phero__sub{max-width:660px;margin-top:22px;font-size:clamp(15px,1.3vw,17px);line-height:1.95;color:var(--muted)}
.phero__tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px}
.phero__tags li{font-size:12.5px;padding:6px 14px;border-radius:100px;border:1px solid var(--lime-line);background:#fff;color:var(--lime-4)}

/* ---------- Cards: pain points ---------- */
.pain{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.pain__item{background:var(--white);padding:32px 26px 30px;position:relative;transition:background .4s}
.pain__item::after{content:"";position:absolute;left:0;top:0;width:100%;height:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease)}
.pain__item:hover{background:var(--cream)}
.pain__item:hover::after{transform:scaleX(1)}
.pain__idx{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.1em}
.pain__item h3{font-size:19px;margin:16px 0 10px}
.pain__item p{font-size:13.5px;line-height:1.85;color:var(--muted)}
.pain__fix{margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);display:flex;gap:8px;align-items:flex-start;font-size:13px;color:var(--lime-4);font-weight:600;line-height:1.7}
.pain__fix svg{width:14px;height:14px;flex:0 0 auto;margin-top:4px;color:var(--lime-3)}
@media(max-width:1000px){.pain{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.pain{grid-template-columns:1fr}}

/* ---------- Capability grid ---------- */
.cap{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,1.6vw,22px)}
.cap__item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:clamp(24px,2.4vw,34px);overflow:hidden;
  transition:transform .45s var(--ease),box-shadow .45s,border-color .45s;
}
.cap__item::before{content:"";position:absolute;inset:auto -40% -70% auto;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(143,195,31,.16),transparent 70%);opacity:0;transition:opacity .5s}
.cap__item:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--lime-line)}
.cap__item:hover::before{opacity:1}
.cap__ico{width:50px;height:50px;border-radius:14px;display:grid;place-items:center;background:var(--lime-soft);color:var(--lime-4);border:1px solid var(--lime-line);margin-bottom:22px;transition:.45s var(--ease)}
.cap__ico svg{width:23px;height:23px}
.cap__item:hover .cap__ico{background:var(--lime);color:#0B0F05;border-color:var(--lime);transform:rotate(-6deg)}
.cap__item h3{font-size:20px;margin-bottom:10px}
.cap__item p{font-size:14px;line-height:1.85;color:var(--muted);min-height:3.7em}
.cap__tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:18px}
.cap__tags i{font-style:normal;font-size:11.5px;padding:4px 10px;border-radius:6px;background:var(--cream-2);color:var(--muted);letter-spacing:.02em}
.cap__no{position:absolute;top:24px;right:26px;font-family:var(--mono);font-size:11px;color:#C3CCB1;letter-spacing:.1em}
@media(max-width:980px){.cap{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.cap{grid-template-columns:1fr}}

/* ---------- Split feature ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,80px);align-items:center}
.split--rev .split__media{order:2}
.split__media{position:relative;border-radius:var(--r-xl);overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow)}
.split__media img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease-out)}
.split__media:hover img{transform:scale(1.05)}
.split__badge{position:absolute;left:20px;bottom:20px;right:20px;display:flex;align-items:center;gap:14px;padding:14px 18px;border-radius:14px;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);box-shadow:0 16px 40px -22px rgba(0,0,0,.5)}
.split__badge b{font-size:26px;letter-spacing:-.03em;color:var(--ink);line-height:1}
.split__badge b em{font-style:normal;font-size:.5em;color:var(--lime-3);margin-left:1px}
.split__badge span{font-size:12px;color:var(--muted);line-height:1.5}
.split__list{margin-top:28px;display:grid;gap:2px}
.split__list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.split__list li:last-child{border-bottom:0}
.split__list svg{width:19px;height:19px;flex:0 0 auto;color:var(--lime-3);margin-top:4px}
.split__list b{display:block;font-size:15.5px;color:var(--ink);font-weight:600;margin-bottom:3px}
.split__list p{font-size:13.5px;color:var(--muted);line-height:1.8}
@media(max-width:880px){.split{grid-template-columns:1fr}.split--rev .split__media{order:0}.split__media{aspect-ratio:16/11}}

/* ---------- Timeline / steps ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative;counter-reset:step}
.steps::before{content:"";position:absolute;left:0;right:0;top:27px;height:1px;background:var(--line)}
.steps__line{position:absolute;left:0;top:27px;height:1px;width:0;background:var(--lime);transition:width 1.6s var(--ease-out)}
.steps.is-in .steps__line{width:100%}
.steps__item{position:relative;padding:0 clamp(10px,1.4vw,26px) 0 0}
.steps__dot{width:54px;height:54px;border-radius:50%;background:#fff;border:1px solid var(--line);display:grid;place-items:center;font-family:var(--mono);font-size:13px;color:var(--muted);position:relative;z-index:1;transition:.45s var(--ease)}
.steps__item:hover .steps__dot{background:var(--lime);border-color:var(--lime);color:#0B0F05;transform:scale(1.06)}
.steps__item h3{font-size:17px;margin:24px 0 10px}
.steps__item p{font-size:13.5px;line-height:1.85;color:var(--muted);padding-right:8px}
.steps__item ul{margin-top:12px;display:grid;gap:5px}
.steps__item ul li{font-size:12.5px;color:var(--lime-4);display:flex;gap:7px;align-items:flex-start}
.steps__item ul li::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--lime);margin-top:9px;flex:0 0 auto}
@media(max-width:980px){
  .steps{grid-template-columns:1fr;gap:0}
  .steps::before{left:26px;right:auto;top:0;bottom:0;width:1px;height:auto}
  .steps__line{display:none}
  .steps__item{display:grid;grid-template-columns:54px 1fr;gap:22px;padding:0 0 30px}
  .steps__item h3{margin-top:10px;grid-column:2}
  .steps__item p,.steps__item ul{grid-column:2}
}

/* ---------- Stats dark band ---------- */
.band{position:relative;overflow:hidden;background:var(--ink);border-radius:var(--r-xl);padding:clamp(34px,4.5vw,64px)}
.band::before{content:"";position:absolute;right:-120px;top:-140px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle,rgba(143,195,31,.28),transparent 66%)}
.band__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(20px,3vw,44px);position:relative}
.band__item{border-left:1px solid rgba(255,255,255,.14);padding-left:clamp(16px,2vw,26px)}
.band__item:first-child{border-left:0;padding-left:0}
.band__item b{display:block;white-space:nowrap;font-size:clamp(30px,4vw,54px);line-height:1;color:#fff;letter-spacing:-.04em;font-variant-numeric:tabular-nums}
.band__item b em{font-style:normal;font-size:.48em;color:var(--lime);margin-left:3px}
.band__item>span{display:block;margin-top:12px;font-size:13px;color:#93A17E;line-height:1.6}
@media(max-width:820px){.band__grid{grid-template-columns:repeat(2,1fr);gap:28px}.band__item:nth-child(3){border-left:0;padding-left:0}}

/* ---------- Case cards ---------- */
.cfilter{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:clamp(24px,3vw,38px)}
.cfilter button{
  border:1px solid var(--line);background:#fff;border-radius:100px;padding:9px 18px;
  font-size:13.5px;color:var(--body);cursor:pointer;transition:.3s var(--ease);font-weight:500;
}
.cfilter button:hover{border-color:var(--lime-line);background:var(--lime-soft);color:var(--lime-4)}
.cfilter button.is-on{background:var(--ink);color:#fff;border-color:var(--ink)}

.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,26px)}
.case{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:transform .45s var(--ease),box-shadow .45s,border-color .45s;display:flex;flex-direction:column}
.case:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--lime-line)}
.case__shot{position:relative;aspect-ratio:16/11;overflow:hidden;background:var(--cream-2)}
.case__shot img{width:100%;height:100%;object-fit:cover;object-position:top center;transition:transform .8s var(--ease-out)}
.case:hover .case__shot img{transform:scale(1.04)}
.case__shot::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(13,18,7,.5),transparent 45%);opacity:.85}
.case__tag{position:absolute;left:14px;top:14px;z-index:2;font-size:11.5px;font-weight:600;padding:5px 11px;border-radius:100px;background:rgba(255,255,255,.94);color:var(--lime-4);letter-spacing:.03em}
.case__body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}
.case__body h3{font-size:17.5px;line-height:1.4;margin-bottom:6px}
.case__body .cat{font-size:12px;color:var(--muted);letter-spacing:.04em}
.case__data{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.case__data b{display:block;font-size:20px;color:var(--ink);letter-spacing:-.02em;line-height:1.1;font-variant-numeric:tabular-nums}
.case__data b em{font-style:normal;font-size:.62em;color:var(--lime-3)}
.case__data span{display:block;font-size:11.5px;color:var(--muted);margin-top:5px}
.case__note{margin-top:16px;font-size:12.5px;line-height:1.8;color:var(--muted);border-left:2px solid var(--lime-line);padding-left:12px;flex:1}
@media(max-width:980px){.cases{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.cases{grid-template-columns:1fr}}

/* ---------- Cert / qualification ---------- */
.certs{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(12px,1.5vw,18px)}
.cert{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 20px;display:flex;gap:14px;align-items:flex-start;transition:.4s var(--ease)}
.cert:hover{border-color:var(--lime-line);box-shadow:var(--shadow-s);transform:translateY(-3px)}
.cert__ico{width:38px;height:38px;border-radius:10px;background:var(--lime-soft);display:grid;place-items:center;flex:0 0 auto;color:var(--lime-4)}
.cert__ico svg{width:19px;height:19px}
.cert b{display:block;font-size:13.5px;color:var(--ink);line-height:1.5;font-weight:600}
.cert span{display:block;font-size:11.5px;color:var(--muted);margin-top:4px;line-height:1.5}
@media(max-width:1000px){.certs{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.certs{grid-template-columns:1fr}}

/* ---------- Model cards ---------- */
.models{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,24px)}
.model{position:relative;border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(26px,2.6vw,36px);background:#fff;transition:.45s var(--ease);display:flex;flex-direction:column}
.model:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--lime-line)}
.model--hl{background:var(--ink);border-color:var(--ink);color:#C9D3B8}
.model--hl h3,.model--hl b{color:#fff}
.model--hl .model__no{color:var(--lime)}
.model--hl .model__list li{border-color:rgba(255,255,255,.12);color:#B4C0A2}
.model__no{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.1em}
.model h3{font-size:21px;margin:14px 0 10px}
.model__desc{font-size:13.5px;line-height:1.85;color:var(--muted);min-height:3.4em}
.model--hl .model__desc{color:#A6B491}
.model__list{margin-top:20px;display:grid;gap:0;flex:1}
.model__list li{display:flex;gap:10px;padding:11px 0;border-top:1px solid var(--line);font-size:13px;line-height:1.7;color:var(--body)}
.model__list svg{width:15px;height:15px;color:var(--lime-3);flex:0 0 auto;margin-top:4px}
.model--hl .model__list svg{color:var(--lime-2)}
.model__foot{margin-top:22px}
@media(max-width:920px){.models{grid-template-columns:1fr}}

/* ---------- Process ---------- */
.proc{display:grid;grid-template-columns:repeat(5,1fr);gap:clamp(10px,1.4vw,18px);counter-reset:p}
.proc__item{position:relative;padding-top:26px;border-top:2px solid var(--line);transition:border-color .4s}
.proc__item:hover{border-color:var(--lime)}
.proc__item b{font-family:var(--mono);font-size:12px;color:var(--lime-3);letter-spacing:.08em}
.proc__item h4{font-size:16px;margin:10px 0 8px}
.proc__item p{font-size:12.5px;line-height:1.8;color:var(--muted)}
@media(max-width:900px){.proc{grid-template-columns:repeat(2,1fr);gap:24px}}

/* ---------- CTA ---------- */
.cta{position:relative;overflow:hidden;background:var(--ink);color:#fff;isolation:isolate}
.cta__bg{position:absolute;inset:0;z-index:-1}
.cta__bg img{width:100%;height:100%;object-fit:cover;opacity:.32}
.cta__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(9,13,4,.96),rgba(9,13,4,.72) 60%,rgba(9,13,4,.5))}
.cta__in{padding-block:clamp(60px,8vw,110px);display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(30px,5vw,70px);align-items:center}
.cta h2{color:#fff;font-size:clamp(28px,4.2vw,54px);letter-spacing:-.03em}
.cta p{color:rgba(255,255,255,.72);margin-top:20px;max-width:520px;line-height:1.95;font-size:15.5px}
.cta__acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.cta__card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-lg);padding:clamp(24px,2.6vw,34px);backdrop-filter:blur(14px)}
.cta__card h4{color:#fff;font-size:15px;letter-spacing:.02em;margin-bottom:18px;display:flex;align-items:center;gap:9px}
.cta__card h4 svg{width:16px;height:16px;color:var(--lime)}
.cta__row{display:flex;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:13.5px}
.cta__row:last-child{border-bottom:0;padding-bottom:0}
.cta__row span{color:rgba(255,255,255,.5)}
.cta__row b{color:#fff;font-weight:600;text-align:right}
.cta__row b.tel{color:var(--lime);font-size:16px;letter-spacing:.02em}
@media(max-width:880px){.cta__in{grid-template-columns:1fr}}

/* ---------- Footer ---------- */
.ftr{background:#0A0E05;color:#8D9B79;padding-top:clamp(50px,6vw,80px);font-size:13.5px}
.ftr__top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:clamp(26px,4vw,60px);padding-bottom:clamp(36px,4vw,54px);border-bottom:1px solid rgba(255,255,255,.09)}
.ftr__brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.ftr__brand img{width:44px;height:44px}
.ftr__brand b{display:block;color:#fff;font-size:17px;line-height:1.2}
.ftr__brand span{display:block;font-size:10px;letter-spacing:.22em;color:#6C7A58;margin-top:4px}
.ftr__desc{line-height:1.95;font-size:13px;max-width:300px;color:#7F8D6C}
.ftr h5{color:#fff;font-size:13px;font-weight:600;letter-spacing:.06em;margin-bottom:16px;opacity:.9}
.ftr li{margin-bottom:10px;line-height:1.7}
.ftr a{transition:color .3s}
.ftr a:hover{color:var(--lime)}
.ftr__contact li{display:flex;gap:10px;align-items:flex-start;line-height:1.75}
.ftr__contact svg{width:15px;height:15px;flex:0 0 auto;color:var(--lime);margin-top:5px}
.ftr__tel{color:var(--lime-2);font-size:19px;font-weight:700;letter-spacing:.02em;display:block;margin-bottom:4px}
.ftr__bot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;padding-block:24px;font-size:12px;color:#6A7757}
.ftr__bot a:hover{color:var(--lime)}
.ftr__bot p{line-height:1.9}
@media(max-width:900px){.ftr__top{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.ftr__top{grid-template-columns:1fr;gap:30px}}

/* ---------- Side dock ---------- */
.dock{position:fixed;right:18px;bottom:104px;z-index:90;display:flex;flex-direction:column;gap:10px}
.dock a,.dock button{
  width:48px;height:48px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);display:grid;place-items:center;color:var(--ink);cursor:pointer;
  box-shadow:0 10px 30px -18px rgba(13,18,7,.5);transition:.35s var(--ease);position:relative;
}
.dock svg{width:19px;height:19px}
.dock a:hover,.dock button:hover{background:var(--lime);border-color:var(--lime);color:#0B0F05;transform:translateY(-2px)}
.dock a::after{
  content:attr(data-tip);position:absolute;right:calc(100% + 10px);top:50%;transform:translateY(-50%) translateX(6px);
  background:var(--ink);color:#fff;font-size:12px;padding:6px 11px;border-radius:8px;white-space:nowrap;
  opacity:0;pointer-events:none;transition:.3s
}
.dock a:hover::after{opacity:1;transform:translateY(-50%)}
.dock__top{opacity:0;pointer-events:none}
.dock__top.is-on{opacity:1;pointer-events:auto}
@media(max-width:900px){.dock{display:none}}

/* ---------- Mobile bottom bar ---------- */
.mbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:95;background:rgba(255,255,255,.96);backdrop-filter:blur(16px);border-top:1px solid var(--line);padding:8px 10px calc(8px + env(safe-area-inset-bottom));grid-template-columns:1fr 1fr;gap:8px}
.mbar a{height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:600}
.mbar a svg{width:17px;height:17px}
.mbar a.ghost{border:1px solid var(--line);color:var(--ink)}
.mbar a.solid{background:var(--lime);color:#0B0F05}
@media(max-width:900px){.mbar{display:grid}body{padding-bottom:62px}}

/* ---------- Reveal animation ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease-out),transform .9s var(--ease-out)}
.rv.is-in{opacity:1;transform:none}
.no-anim .rv{opacity:1 !important;transform:none !important}
.no-anim *,.no-anim *::before,.no-anim *::after{transition:none !important;animation:none !important}
.rv-d1{transition-delay:.08s}.rv-d2{transition-delay:.16s}.rv-d3{transition-delay:.24s}
.rv-d4{transition-delay:.32s}.rv-d5{transition-delay:.4s}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .rv{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ---------- Misc ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag-row li{font-size:12px;padding:6px 13px;border-radius:100px;border:1px solid var(--line);color:var(--muted);transition:.3s}
.tag-row li:hover{border-color:var(--lime);color:var(--lime-4);background:var(--lime-soft)}
.divider{height:1px;background:var(--line);border:0;margin:0}
.note{font-size:12px;color:var(--muted);line-height:1.8}

/* ---------- Forms ---------- */
.form{display:grid;gap:16px}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:grid;gap:8px}
.field label{font-size:12.5px;font-weight:600;color:var(--ink);letter-spacing:.02em}
.field label i{font-style:normal;color:var(--warm)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);background:#fff;border-radius:12px;padding:13px 15px;
  font-size:14px;color:var(--ink);transition:.3s;outline:none;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--lime);box-shadow:0 0 0 4px rgba(143,195,31,.14)}
.field input::placeholder,.field textarea::placeholder{color:#A9B39C}
.form__note{font-size:12px;color:var(--muted);line-height:1.8}
.form__ok{display:none;padding:18px;border-radius:14px;background:var(--lime-soft);border:1px solid var(--lime-line);color:var(--lime-4);font-size:14px;line-height:1.8}
.form__ok.is-on{display:block}
@media(max-width:620px){.form__row{grid-template-columns:1fr}}

/* ---------- Contact page ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(26px,4vw,60px);align-items:flex-start}
.info-card{background:var(--cream);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(24px,2.6vw,34px)}
.info-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line)}
.info-item:last-child{border-bottom:0;padding-bottom:0}
.info-item:first-child{padding-top:0}
.info-item svg{width:18px;height:18px;color:var(--lime-3);flex:0 0 auto;margin-top:4px}
.info-item span{display:block;font-size:11.5px;color:var(--muted);letter-spacing:.06em;margin-bottom:4px}
.info-item b{display:block;font-size:15px;color:var(--ink);font-weight:600;line-height:1.6}
.info-item a.tel{font-size:22px;color:var(--lime-4);letter-spacing:-.01em}
@media(max-width:880px){.contact-grid{grid-template-columns:1fr}}

/* ---------- About page ---------- */
.tl{position:relative;padding-left:26px;display:grid;gap:0}
.tl::before{content:"";position:absolute;left:3px;top:8px;bottom:8px;width:1px;background:var(--line)}
.tl__item{position:relative;padding:0 0 30px}
.tl__item::before{content:"";position:absolute;left:-28px;top:7px;width:9px;height:9px;border-radius:50%;background:#fff;border:2px solid var(--lime)}
.tl__item b{display:block;font-family:var(--mono);font-size:12px;color:var(--lime-3);letter-spacing:.06em;margin-bottom:6px}
.tl__item h4{font-size:16px;margin-bottom:6px}
.tl__item p{font-size:13.5px;color:var(--muted);line-height:1.85}

.team{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(12px,1.6vw,20px)}
.team__item{border:1px solid var(--line);border-radius:var(--r);padding:24px 20px;background:#fff;transition:.4s var(--ease)}
.team__item:hover{transform:translateY(-4px);box-shadow:var(--shadow-s);border-color:var(--lime-line)}
.team__item b{display:block;font-size:15px;color:var(--ink);margin-bottom:8px}
.team__item p{font-size:12.5px;color:var(--muted);line-height:1.8}
.team__item i{display:block;font-family:var(--mono);font-size:11px;color:#C0C9AE;font-style:normal;margin-bottom:12px}
@media(max-width:900px){.team{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.team{grid-template-columns:1fr}}

/* ---------- Service page blocks ---------- */
.svc{display:grid;gap:clamp(24px,3vw,36px)}
.svc__item{display:grid;grid-template-columns:56px 1.05fr 1fr;gap:clamp(20px,3vw,44px);padding-block:clamp(24px,3vw,36px);border-top:1px solid var(--line);align-items:start;transition:.4s}
.svc__item:last-child{border-bottom:1px solid var(--line)}
.svc__item:hover{background:var(--cream)}
.svc__no{font-family:var(--mono);font-size:13px;color:#C0C9AE;letter-spacing:.1em;padding-top:6px}
.svc__head h3{font-size:clamp(20px,2vw,26px);margin-bottom:10px}
.svc__head p{font-size:13.5px;color:var(--muted);line-height:1.9;max-width:34em}
.svc__tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.svc__tags i{font-style:normal;font-size:11.5px;padding:4px 10px;border-radius:6px;background:var(--cream-2);color:var(--muted)}
.svc__body{display:grid;gap:12px}
.svc__body li{display:flex;gap:11px;font-size:13.5px;line-height:1.8;color:var(--body)}
.svc__body svg{width:16px;height:16px;color:var(--lime-3);flex:0 0 auto;margin-top:4px}
@media(max-width:900px){.svc__item{grid-template-columns:1fr;gap:14px}.svc__no{padding-top:0}}

/* ---------- Data table ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;-webkit-overflow-scrolling:touch}
table.res{width:100%;border-collapse:collapse;min-width:760px;font-size:13.5px}
table.res th{
  text-align:left;padding:15px 22px;background:var(--cream);font-size:11.5px;letter-spacing:.12em;
  color:var(--muted);font-weight:600;border-bottom:1px solid var(--line);white-space:nowrap;
}
table.res td{padding:17px 22px;border-bottom:1px solid var(--line);color:var(--body);line-height:1.65;vertical-align:top}
table.res tr:last-child td{border-bottom:0}
table.res tbody tr{transition:background .3s}
table.res tbody tr:hover{background:var(--cream)}
table.res td b{color:var(--ink);font-weight:600}
table.res .res-out{color:var(--lime-4);font-weight:600}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  cursor:pointer;padding:22px 0;font-size:clamp(15px,1.5vw,17px);font-weight:600;color:var(--ink);
  list-style:none;display:flex;justify-content:space-between;gap:24px;align-items:center;transition:color .3s;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--lime-4)}
.faq summary::after{content:"+";font-size:22px;font-weight:400;color:var(--lime-3);line-height:1;flex:0 0 auto;transition:transform .3s}
.faq details[open] summary::after{content:"−"}
.faq details p{padding:0 0 22px;font-size:14px;color:var(--muted);line-height:1.95;max-width:820px}

/* ---------- Header responsive ---------- */
@media(max-width:1080px){
  .hdr__nav{display:none}
  .hdr__tel{display:none}
  .hdr .hdr__right>.btn{display:none}
  .burger{display:block}
  .hdr__in{height:66px}
}
@media(max-width:420px){
  .hdr__brand b{font-size:15px}
  .hdr__brand img{width:36px;height:36px}
}

/* ---------- Statement (image quote band) ---------- */
.statement{position:relative;display:flex;align-items:center;min-height:clamp(320px,42vw,520px);background:var(--ink);overflow:hidden;isolation:isolate}
.statement>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 16%;z-index:-2}
.statement::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(95deg,rgba(9,13,4,.97) 0%,rgba(9,13,4,.86) 32%,rgba(9,13,4,.5) 62%,rgba(9,13,4,.24) 100%)}
.statement__in{padding-block:clamp(48px,7vw,80px);position:relative}
.statement .eyebrow{color:var(--lime-2)}
.statement__q{font-size:clamp(21px,2.8vw,36px);color:#fff;font-weight:700;line-height:1.55;letter-spacing:-.01em;max-width:20em}
.statement__s{display:block;margin-top:24px;font-size:12.5px;color:rgba(255,255,255,.55);letter-spacing:.1em}

/* ============================================================
   大屏适配：内容栏宽、字号、间距按屏幕宽度等比放大
   （针对 2K / 4K 显示器，避免内容挤在中间一小条）
   ============================================================ */
@media(min-width:1560px){
  :root{--max:min(1400px,92vw)}
  .h1{font-size:clamp(84px,5.2vw,96px)}
  .h2{font-size:clamp(46px,3.05vw,58px)}
  .hero__sub{max-width:680px;font-size:clamp(17px,1.15vw,19px)}
  .phero__sub{max-width:720px;font-size:clamp(16px,1.1vw,18px)}
  .hero__stats b{font-size:clamp(40px,2.9vw,54px)}
  .lead,.p-lg{font-size:clamp(17px,1.15vw,20px)}
  .marquee span{font-size:15px}
}
@media(min-width:1920px){
  :root{--max:min(1620px,90vw);--pad:56px}
  body{font-size:17px}
  .h1{font-size:clamp(94px,5.1vw,112px)}
  .h2{font-size:clamp(54px,3.05vw,68px)}
  .h3{font-size:clamp(24px,1.6vw,31px)}
  .hero{min-height:calc(100svh - 88px)}
  .hero__slogan{font-size:16px}
  .hero__sub{max-width:720px}
  .hero__stats b{font-size:clamp(48px,2.9vw,60px)}
  .section{padding-block:clamp(100px,7.6vw,150px)}
  .pain p,.cap p,.model__desc,.case p,.faq details p{font-size:15px}
  .ftr__desc{font-size:13.5px;max-width:340px}
  .note{font-size:12.5px}
  table.res{font-size:14.5px}
  .marquee span{font-size:16px}
}
@media(min-width:2200px){
  :root{--max:min(1880px,88vw);--pad:64px}
  body{font-size:18px}
  .h1{font-size:clamp(112px,5.2vw,132px)}
  .h2{font-size:clamp(64px,3vw,80px)}
  .h3{font-size:clamp(28px,1.6vw,34px)}
  .hero__sub{max-width:800px;font-size:20px}
  .hero__stats b{font-size:clamp(56px,2.7vw,70px)}
  .section{padding-block:clamp(120px,6.6vw,180px)}
  .pain p,.cap p,.model__desc,.case p,.faq details p{font-size:16px}
  .marquee span{font-size:18px}
}
@media(min-width:2900px){
  :root{--max:min(2400px,85vw);--pad:80px}
  .h1{font-size:clamp(140px,5.2vw,168px)}
  .h2{font-size:clamp(84px,3vw,100px)}
  .hero__sub{max-width:920px;font-size:22px}
  .hero__stats b{font-size:clamp(72px,2.7vw,88px)}
  .hero__slogan{font-size:20px}
  .marquee span{font-size:20px}
}

/* ---------- 大屏细节修正：标题列宽、CTA、页脚栅格 ---------- */
@media(min-width:1560px){
  .sec-head .txt{max-width:820px}
  .cta h2{font-size:clamp(40px,3.4vw,58px)}
}
@media(min-width:1920px){
  .sec-head .txt{max-width:920px}
  .ftr__top{grid-template-columns:1.7fr .85fr .85fr 1.3fr;gap:40px}
  .ftr__desc{max-width:360px}
  .cta h2{font-size:clamp(46px,3.2vw,66px)}
  .cta p{font-size:16.5px;max-width:560px}
}
@media(min-width:2200px){
  .h2{font-size:clamp(58px,2.8vw,74px)}
  .sec-head .txt{max-width:1060px}
  .cta h2{font-size:clamp(56px,2.8vw,76px)}
  .ftr__top{gap:56px}
}
@media(min-width:2900px){
  .h2{font-size:clamp(76px,2.6vw,94px)}
  .sec-head .txt{max-width:1240px}
}

/* ---------- 超大屏正文可读性 ---------- */
@media(min-width:2200px){
  .ftr__desc{font-size:15px;max-width:400px}
  .ftr li{font-size:14.5px}
  .ftr h5{font-size:14.5px}
  .ftr__bot{font-size:13.5px}
  .hero__meta li{font-size:14.5px}
  .pain__idx,.cap__no{font-size:12.5px}
  .tag-row li{font-size:13.5px}
}
@media(min-width:2900px){
  .ftr__desc{font-size:16.5px;max-width:460px}
  .ftr li{font-size:16px}
  .ftr h5{font-size:16px}
  .ftr__bot{font-size:15px}
}

/* ---------- 4K / 超宽屏（视口 2900px 以上）整体等比放大 ---------- */
@media(min-width:2900px){
  :root{--max:min(2400px,85vw);--pad:80px}
  body{font-size:20px}
  .h1{font-size:clamp(160px,5.4vw,196px)}
  .h2{font-size:clamp(84px,3vw,108px)}
  .h3{font-size:clamp(30px,1.6vw,40px)}
  .hero{min-height:calc(100svh - 96px)}
  .hero__slogan{font-size:22px}
  .hero__top span{font-size:16px}
  .hero__top b{font-size:14px;padding:6px 14px}
  .hero__sub{max-width:1040px;font-size:24px}
  .hero__stats b{font-size:clamp(80px,2.7vw,104px)}
  .hero__stats li>span{font-size:16px}
  .hero__meta li{font-size:17px}
  .hdr__nav a{font-size:17px;padding:12px 20px}
  .hdr__brand b{font-size:20px}
  .hdr__brandtxt span{font-size:12px}
  .hdr__in{height:88px}
  .btn{font-size:16px;padding:17px 30px}
  .eyebrow{font-size:13px}
  .section{padding-block:clamp(140px,6vw,220px)}
  .pain p,.cap p,.model__desc,.case p,.faq details p{font-size:18px}
  .pain h3,.cap h3{font-size:26px}
  .sec-head .txt{max-width:1500px}
  .marquee span{font-size:22px}
  .ftr__desc{font-size:18px;max-width:560px}
  .ftr li{font-size:17px}
  .ftr h5{font-size:17px}
  .ftr__bot{font-size:15px}
  table.res{font-size:17px}
}
@media(min-width:3600px){
  :root{--max:min(3000px,82vw);--pad:96px}
  body{font-size:22px}
  .h1{font-size:clamp(200px,5.2vw,250px)}
  .h2{font-size:clamp(110px,2.9vw,132px)}
  .hero__sub{max-width:1180px;font-size:27px}
  .hero__stats b{font-size:clamp(104px,2.6vw,132px)}
  .pain p,.cap p,.model__desc,.case p,.faq details p{font-size:20px}
  .marquee span{font-size:25px}
  .ftr__desc{font-size:20px;max-width:640px}
  .ftr li,.ftr h5{font-size:19px}
}

/* ============================================================
   首屏高度自适应：让「内容 + 绿色跑马灯」整体落在一屏之内
   标题同时受宽度与高度约束，矮屏自动收敛
   ============================================================ */
.hero h1{font-size:clamp(34px,min(6.2vw,8.4vh),140px)}
@media(max-height:980px){
  .hero{padding-top:calc(78px + clamp(16px,2.6vh,30px))}
  .hero__in{padding-block:0 clamp(14px,2.2vh,26px)}
  .hero__top{margin-bottom:18px}
  .hero__slogan{margin-bottom:12px}
  .hero__sub{margin-top:18px;line-height:1.85}
  .hero__acts{margin-top:26px}
  .hero__meta{margin-top:22px}
  .hero__stats li{padding:20px 20px 22px}
  .hero__stats b{font-size:clamp(26px,min(3.4vw,4.6vh),44px)}
  .hero__stats li>span{margin-top:8px}
}
@media(max-height:820px){
  .hero{padding-top:calc(78px + 10px)}
  .hero__sub{margin-top:14px;line-height:1.7}
  .hero__acts{margin-top:18px}
  .hero__meta{margin-top:14px}
  .hero__stats li{padding:14px 16px 16px}
  .hero__stats b{font-size:clamp(24px,min(3vw,5vh),38px)}
  .hero__stats li>span{margin-top:6px;font-size:11.5px}
}
@media(max-height:700px){
  .hero__slogan,.hero__meta{display:none}
  .hero__top{margin-bottom:14px}
  .hero__sub{margin-top:12px}
  .hero__acts{margin-top:16px}
}