/* ============================================================
   Union Prime Energy — optimized stylesheet
   Replaces 45 WordPress/Elementor stylesheets (899 KB) with one file.
   Font: system stack (0 bytes downloaded).
   ============================================================ */

:root{
  --brand:#2a9d8f;
  --brand-dark:#0a8577;
  --brand-deep:#0a6b5e;
  --ink:#0d1b1a;
  --body:#41514f;
  --muted:#6b7c7a;
  --soft:#ecf4f3;
  --soft-2:#f6faf9;
  --line:#dbe6e4;
  --white:#fff;
  --amber:#f4a259;

  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(13,27,26,.06),0 4px 14px rgba(13,27,26,.06);
  --shadow:0 10px 30px rgba(13,27,26,.10);
  --shadow-lg:0 24px 60px rgba(13,27,26,.16);

  --container:1180px;
  --gutter:clamp(1.1rem,4vw,2.5rem);
  --section:clamp(3.5rem,8vw,6.5rem);

  --font:"Segoe UI",-apple-system,BlinkMacSystemFont,Inter,Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);color:var(--body);background:var(--white);
  font-size:clamp(1rem,.97rem + .18vw,1.075rem);line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-dark);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{color:var(--ink);line-height:1.15;margin:0 0 .6em;font-weight:700;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,1.3rem + 3.4vw,4rem)}
h2{font-size:clamp(1.7rem,1.2rem + 2vw,2.7rem)}
h3{font-size:clamp(1.15rem,1.05rem + .5vw,1.4rem)}
p{margin:0 0 1.1em}
ul{margin:0 0 1.1em;padding-left:1.15rem}
:focus-visible{outline:3px solid var(--brand);outline-offset:3px;border-radius:4px}

.container{width:min(100% - var(--gutter)*2,var(--container));margin-inline:auto}
.section{padding-block:var(--section)}
.section--soft{background:var(--soft-2)}
.section--tint{background:var(--soft)}
.section--dark{background:linear-gradient(135deg,var(--brand-dark),var(--brand));color:#eafaf7}
.section--dark h2,.section--dark h3{color:#fff}
.center{text-align:center}
.lead{font-size:clamp(1.02rem,.98rem + .35vw,1.2rem);color:var(--body);max-width:62ch}
.eyebrow{
  display:inline-flex;align-items:center;gap:.55rem;font-size:.79rem;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--brand-dark);margin-bottom:1rem
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--brand);display:block}
.center .eyebrow{justify-content:center}
.skip{position:absolute;left:-9999px;top:0;background:var(--brand-dark);color:#fff;padding:.7rem 1.1rem;z-index:100}
.skip:focus{left:1rem;top:1rem}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.85rem 1.5rem;border-radius:999px;font-weight:600;font-size:.97rem;
  border:1.5px solid transparent;cursor:pointer;transition:transform .18s var(--ease),box-shadow .18s,background .18s,color .18s;
  text-decoration:none!important;line-height:1.2
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(42,157,143,.32)}
.btn--primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(42,157,143,.4)}
.btn--ghost{border-color:var(--brand);color:var(--brand-dark);background:none}
.btn--ghost:hover{background:var(--brand);color:#fff}
.btn--outline{border-color:var(--brand);color:var(--brand-dark)}
.btn--outline:hover{background:var(--brand);color:#fff}
.btn--light{background:#fff;color:var(--brand-deep)}
.btn--light:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn--sm{padding:.6rem 1.05rem;font-size:.88rem}
.btn-row{display:flex;flex-wrap:wrap;gap:.85rem;margin-top:1.6rem}
.center .btn-row{justify-content:center}

/* ---------- header ---------- */
.header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:saturate(160%) blur(10px);transition:background .25s,box-shadow .25s,padding .25s}
.header__inner{display:flex;align-items:center;gap:1.5rem;padding-block:1rem}
.header__logo img{height:38px;width:auto}
.header__logo .logo--dark{display:none}
.header__nav{margin-left:auto;display:flex;align-items:center;gap:1.6rem}
.header__nav a{color:var(--ink);font-weight:500;font-size:.96rem;position:relative;padding-block:.35rem}
.header__nav a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--brand);transition:right .25s var(--ease)}
.header__nav a:hover::after,.header__nav a[aria-current="page"]::after{right:0}
.header__nav a[aria-current="page"]{color:var(--brand-dark);font-weight:600}
.header__cta{margin-left:.4rem}
.header__toggle{display:none;background:none;border:0;padding:.4rem;cursor:pointer}
.header__toggle span{display:block;width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.header__toggle span+span{margin-top:6px}

.header.is-stuck{background:rgba(255,255,255,.94);backdrop-filter:saturate(160%) blur(12px);box-shadow:0 1px 0 var(--line),0 8px 26px rgba(13,27,26,.06)}
.header.is-stuck .header__nav a{color:var(--ink)}
.header.is-stuck .header__nav a[aria-current="page"]{color:var(--brand-dark)}
.header.is-stuck .header__toggle span{background:var(--ink)}
.header.is-stuck .header__logo .logo--light{display:none}
.header.is-stuck .header__logo .logo--dark{display:block}
.header.is-stuck .btn--ghost{border-color:var(--brand);color:var(--brand-dark);background:none}
.header.is-stuck .btn--ghost:hover{background:var(--brand);color:#fff}

/* ---------- hero ---------- */
.hero{position:relative;margin-top:-86px;padding-top:86px;min-height:min(86svh,700px);display:flex;align-items:center;color:var(--ink);overflow:hidden}
.hero__bg{position:absolute;inset:0;z-index:-2}
/* 照片已缩到画布上（底部延伸留白），人物小腿落在 71% 处、不再贴着底边；
   object-position 竖向偏上，避免超宽视口下裁掉头部 */
.hero__bg img{width:100%;height:100%;object-fit:cover;object-position:58% 40%}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(100deg,#fff 0%,#fff 27%,rgba(255,255,255,.93) 38%,rgba(255,255,255,.52) 49%,rgba(255,255,255,.12) 57%,rgba(255,255,255,0) 64%)
}
.hero__inner{padding-block:clamp(4rem,12vw,7rem)}
.hero h1{color:var(--ink);max-width:20ch}
.hero p{color:var(--body);max-width:56ch;font-size:clamp(1.05rem,1rem + .45vw,1.3rem);margin-bottom:0}
.hero__badges{display:flex;flex-wrap:wrap;gap:.6rem 1.4rem;margin-top:2.4rem;padding-top:1.6rem;border-top:1px solid var(--line);font-size:.9rem;color:var(--body)}
.hero__badges span{display:flex;align-items:center;gap:.5rem}
.hero__badges svg{flex:none;color:var(--brand)}

/* ---------- grids ---------- */
.grid{display:grid;gap:clamp(1.1rem,3vw,2rem)}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(270px,1fr))}
.grid--4{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.split{display:grid;gap:clamp(2rem,5vw,4rem);align-items:center;grid-template-columns:1fr}
@media(min-width:900px){.split--2{grid-template-columns:1.05fr .95fr}.split--2.rev>*:first-child{order:2}}

/* ---------- cards ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(1.5rem,3vw,2.1rem);box-shadow:var(--shadow-sm);transition:transform .22s var(--ease),box-shadow .22s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card__icon{width:52px;height:52px;border-radius:14px;background:var(--soft);color:var(--brand-dark);display:grid;place-items:center;margin-bottom:1.15rem}
.card h3{margin-bottom:.5rem}
.card p:last-child{margin-bottom:0}
.card__num{font-size:2.6rem;font-weight:800;color:var(--soft);line-height:1;margin-bottom:-.35rem;letter-spacing:-.04em}

.feature{display:flex;gap:1rem;align-items:flex-start}
.feature__dot{flex:none;width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;display:grid;place-items:center;margin-top:.15rem}
.feature h3{font-size:1.12rem;margin-bottom:.35rem}
.feature p{margin:0;font-size:.97rem}

.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1.5rem;text-align:center}
.stat b{display:block;font-size:clamp(2rem,1.5rem + 2vw,3.1rem);color:#fff;font-weight:800;letter-spacing:-.03em;line-height:1}
.stat span{display:block;margin-top:.5rem;font-size:.9rem;color:#d9f4ef;letter-spacing:.04em}

.quote{background:#fff;border-radius:var(--radius-lg);padding:clamp(1.8rem,4vw,2.8rem);box-shadow:var(--shadow);border-left:5px solid var(--brand)}
.quote p{font-size:clamp(1.05rem,1rem + .5vw,1.35rem);color:var(--ink);font-style:italic;margin-bottom:1.2rem}
.quote footer{font-size:.92rem;color:var(--muted)}
.quote footer b{color:var(--ink);display:block}

/* ---------- projects ---------- */
.project{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:#08120f;box-shadow:var(--shadow);display:flex;flex-direction:column}
.project img{aspect-ratio:4/3;object-fit:cover;width:100%;transition:transform .5s var(--ease)}
.project:hover img{transform:scale(1.04)}
.project__body{position:absolute;inset:auto 0 0 0;padding:1.4rem 1.5rem;color:#fff;background:linear-gradient(to top,rgba(4,30,27,.94),rgba(4,30,27,.55) 55%,transparent)}
.project__body h3{color:#fff;margin-bottom:.25rem;font-size:1.2rem}
.project__meta{font-size:.88rem;color:#bfe0dc}
.tags{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.7rem}
.tag{font-size:.75rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;background:rgba(42,157,143,.22);border:1px solid rgba(42,157,143,.5);color:#d8f2ee;padding:.22rem .6rem;border-radius:999px}

/* ---------- CTA band ---------- */
.cta{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--brand-deep),var(--brand-dark) 60%,var(--brand));color:#fff;border-radius:var(--radius-lg);padding:clamp(2.2rem,5vw,3.6rem)}
.cta h2{color:#fff;max-width:26ch}
.cta p{color:#d6ece9;max-width:60ch;margin-bottom:0}
.cta__actions{margin-top:1.8rem;display:flex;flex-wrap:wrap;gap:.85rem}

/* ---------- contact ---------- */
.info-list{list-style:none;padding:0;margin:0;display:grid;gap:1.1rem}
.info-list li{display:flex;gap:.9rem;align-items:flex-start}
.info-list svg{flex:none;color:var(--brand);margin-top:.2rem}
.info-list b{display:block;color:var(--ink);font-size:.86rem;text-transform:uppercase;letter-spacing:.08em}
.form{display:grid;gap:1rem}
.field{display:grid;gap:.4rem}
.field label{font-size:.87rem;font-weight:600;color:var(--ink)}
.field input,.field select,.field textarea{
  font:inherit;padding:.8rem .95rem;border:1.5px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);transition:border-color .18s,box-shadow .18s
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(42,157,143,.14);outline:none}
.field textarea{min-height:130px;resize:vertical}
.form__row{display:grid;gap:1rem;grid-template-columns:1fr 1fr}
@media(max-width:600px){.form__row{grid-template-columns:1fr}}
.form__note{font-size:.82rem;color:var(--muted);margin:0}

/* ---------- footer ---------- */
.footer{background:var(--soft-2);color:var(--body);border-top:1px solid var(--line);padding-block:clamp(2.8rem,6vw,4rem);font-size:.94rem}
.footer__grid{display:grid;gap:2.4rem;grid-template-columns:repeat(auto-fit,minmax(215px,1fr))}
.footer h4{color:var(--ink);font-size:.83rem;letter-spacing:.13em;text-transform:uppercase;margin-bottom:1rem}
.footer a{color:var(--brand-dark)}
.footer a:hover{color:var(--brand)}
.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:.55rem}
.footer__brand img{height:40px;width:auto;margin-bottom:1rem}
.footer__bottom{margin-top:2.8rem;padding-top:1.4rem;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:.6rem 1.4rem;justify-content:space-between;font-size:.86rem;color:var(--muted)}
.socials{display:flex;gap:.6rem}
.socials a{width:36px;height:36px;border-radius:50%;background:rgba(10,107,94,.10);display:grid;place-items:center;transition:background .2s,transform .2s}
.socials a:hover{background:var(--brand);color:#fff;transform:translateY(-2px)}

/* ---------- page hero (inner pages) ---------- */
.page-hero{position:relative;margin-top:-86px;padding-top:86px;color:var(--ink);overflow:hidden}
.page-hero__bg{position:absolute;inset:0;z-index:-2}
.page-hero__bg img{width:100%;height:100%;object-fit:cover;object-position:64% center}
.page-hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,#fff 0%,#fff 36%,rgba(255,255,255,.88) 52%,rgba(255,255,255,.42) 70%,rgba(255,255,255,.10) 88%,rgba(255,255,255,0) 100%)}
.page-hero__inner{padding-block:clamp(3.2rem,9vw,5.5rem)}
.page-hero h1{color:var(--ink);max-width:24ch;margin-bottom:.5rem}
.page-hero p{color:var(--body);max-width:60ch;margin-bottom:0}
/* 品牌色页头（联系我们页）：深青底 → 文字必须用浅色，否则对比度不达标 */
.page-hero--brand{background:linear-gradient(120deg,var(--brand-deep),var(--brand-dark) 70%,var(--brand));color:#fff}
.page-hero--brand h1{color:#fff}
.page-hero--brand p{color:rgba(255,255,255,.92)}
.page-hero--brand .crumbs{color:rgba(255,255,255,.78)}
.page-hero--brand .crumbs a{color:#fff;text-decoration-color:rgba(255,255,255,.45)}
.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:1rem}
.crumbs a{color:var(--brand-dark)}

/* ---------- misc ---------- */
/* Content is visible by default; only the `js` class (set inline in <head>)
   enables the hide-then-fade-in, so a missing/blocked script can never leave
   the page blank. */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.js .reveal.is-visible{opacity:1;transform:none}
.checklist{list-style:none;padding:0;margin:0;display:grid;gap:.7rem}
.checklist li{display:flex;gap:.7rem;align-items:flex-start}
.checklist svg{flex:none;color:var(--brand);margin-top:.25rem}
.badge-row{display:flex;flex-wrap:wrap;gap:.5rem}
.badge{background:#fff;border:1px solid var(--line);border-radius:999px;padding:.4rem .9rem;font-size:.83rem;font-weight:600;color:var(--brand-dark)}

@media(max-width:860px){
  .header__nav{
    position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;
    gap:0;padding:.6rem var(--gutter) 1.2rem;box-shadow:var(--shadow);display:none
  }
  .header__nav a{color:var(--ink)!important;padding:.85rem 0;border-bottom:1px solid var(--line)}
  .header__nav a::after{display:none}
  .header__nav .header__cta{margin:1rem 0 0}
  .header.is-open .header__nav{display:flex}
  .header__toggle{display:block;margin-left:auto}
  .header__nav .btn--ghost{border-color:var(--brand);color:var(--brand-dark)!important}
  .header.is-open{background:#fff}
  .header.is-open .header__toggle span{background:var(--ink)}
  .header.is-open .header__logo .logo--light{display:none}
  .header.is-open .header__logo .logo--dark{display:block}
  .hero,.page-hero{margin-top:-80px;padding-top:80px}
  /* 窄屏：横向渐变只盖住左边一条，文字会压在照片上 -> 改为竖向浅色渐变，保证可读 */
  .hero__bg::after{
    background:
      linear-gradient(180deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.88) 42%,rgba(255,255,255,.74) 72%,rgba(255,255,255,.58) 100%)
  }
  .hero__bg img{object-position:74% center}
  .page-hero__bg::after{
    background:
      linear-gradient(180deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.86) 55%,rgba(255,255,255,.66) 100%)
  }
  .page-hero__bg img{object-position:70% center}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none}
}
@media print{.header,.footer,.cta{display:none}}