/* ===== Sanyi Environmental — 前端视觉（内容驱动 / 工业深板条 + 环保绿） ===== */
:root{
  --primary:#0E9F6E;
  --primary-dark:#0B7A41;
  --secondary-light:#457B9D;
  --accent:#1E293B;
  --accent-2:#334155;
  --ink:#1f2730;
  --muted:#64748b;
  --gray:#64748b;
  --bg:#ffffff;
  --white:#ffffff;
  --dark:#1E293B;
  --bg-soft:#F3F7F4;
  --line:#e5e9ee;
  --radius:14px;
  --radius-sm:8px;
  --pill:999px;
  --shadow:0 6px 18px rgba(0,0,0,.08);
  --shadow-lg:0 14px 40px rgba(0,0,0,.14);
  --transition:.2s;
  --maxw:1300px;
  --header-h:64px;
  --whatsapp:#25D366;
  --facebook:#1877F2;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{overflow-x:hidden}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;font-size:15px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{line-height:1.2;font-weight:800;color:var(--accent)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.section-head{text-align:center;max-width:760px;margin:0 auto 40px}
.section-head h2{font-size:34px;margin-bottom:10px}
.section-head p{color:var(--muted)}
.block-title{font-size:24px;margin-bottom:20px;color:var(--accent)}

/* icons */
.i-mini{width:16px;height:16px;display:inline-block;vertical-align:-3px}
.i-hero{width:84px;height:84px}
.i-up{width:20px;height:20px;transform:rotate(-90deg)}

/* buttons */
.btn{display:inline-block;padding:13px 28px;border-radius:var(--pill);font-weight:700;font-size:15px;cursor:pointer;border:2px solid transparent;transition:.2s}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1)}

/* ===== top utility bar ===== */
.topbar-util{background:var(--accent);color:#cbd5e1;font-size:13px}
.nav-util-inner{display:flex;align-items:center;justify-content:space-between;height:38px}
.util-left{display:flex;gap:18px;align-items:center}
.util-certs{color:#9ae6c4;font-weight:600;letter-spacing:.5px}
.util-right{display:flex;gap:14px;align-items:center}
.lang-switch{display:flex;gap:4px}
.lang-switch a{padding:3px 12px;border-radius:var(--pill);color:#cbd5e1;border:1px solid rgba(255,255,255,.18)}
.lang-switch a.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.util-wa{display:inline-flex;align-items:center;gap:5px;color:#fff;font-weight:600}
.util-wa:hover{color:#9ae6c4}
.util-phone{display:inline-flex;align-items:center;gap:5px;color:#fff;font-weight:600}
.util-phone:hover{color:#9ae6c4}

/* ===== main nav ===== */
.main-nav{background:var(--accent);position:sticky;top:0;z-index:50;border-top:1px solid rgba(255,255,255,.06)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h)}
.brand{font-size:22px;font-weight:800;color:#fff;letter-spacing:.5px}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-menu a{padding:9px 14px;color:#cbd5e1;border-radius:8px;font-weight:600;font-size:15px;transition:.2s}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-menu a.active{color:#fff}
.nav-menu a.btn-quote{background:var(--primary);color:#fff;margin-left:8px}
.nav-menu a.btn-quote:hover{background:var(--primary-dark)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.nav-toggle span{width:24px;height:2px;background:#fff;display:block}

/* ===== hero ===== */
.hero{position:relative;color:#fff;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:
  radial-gradient(1200px 500px at 80% -10%,rgba(14,159,110,.35),transparent),
  linear-gradient(120deg,#1E293B 0%,#0f172a 60%,#1E293B 100%)}
.hero-inner{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding:80px 0 90px}
.hero-badge{display:inline-block;background:rgba(14,159,110,.18);color:#9ae6c4;border:1px solid rgba(14,159,110,.5);
  padding:6px 16px;border-radius:var(--pill);font-size:13px;font-weight:700;margin-bottom:18px}
.hero-text h1{color:#fff;font-size:48px;line-height:1.1;margin-bottom:18px}
.hero-sub{color:#cbd5e1;font-size:18px;max-width:520px;margin-bottom:28px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-visual{position:relative}
.hero-card{aspect-ratio:4/3;border-radius:20px;background:linear-gradient(135deg,rgba(14,159,110,.5),rgba(30,41,59,.7));
  display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.85);box-shadow:var(--shadow-lg)}
.hero-card .i-hero{width:120px;height:120px}
.hero-float-badge{position:absolute;bottom:18px;left:-10px;background:#fff;color:var(--accent);padding:10px 18px;border-radius:var(--pill);
  font-weight:700;font-size:13px;display:inline-flex;align-items:center;gap:6px;box-shadow:var(--shadow)}

/* ===== stats strip ===== */
.stats-strip{background:var(--bg-soft)}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:36px 0}
.stat{text-align:center}
.stat-value{font-size:40px;font-weight:800;color:var(--primary)}
.stat-label{color:var(--muted);font-size:14px;margin-top:4px}

/* ===== intro ===== */
.intro{padding:64px 0 20px}
.intro-inner{text-align:center;max-width:820px;margin:0 auto}
.intro-inner h2{font-size:30px;margin-bottom:12px}
.intro-inner p{color:var(--muted);font-size:17px}

/* ===== products (home + page) ===== */
.products-home{padding:30px 0 70px}
.products-page{padding:20px 0 70px}
.cat-sticky{position:sticky;top:var(--header-h);background:rgba(255,255,255,.96);backdrop-filter:blur(6px);
  display:flex;gap:8px;padding:12px 0;margin-bottom:24px;border-bottom:1px solid var(--line);z-index:20;overflow-x:auto}
.cat-sticky a{padding:8px 18px;border-radius:var(--pill);background:var(--bg-soft);color:var(--accent-2);font-weight:700;white-space:nowrap}
.cat-sticky a.active{background:var(--primary);color:#fff}
.group-block{margin-bottom:48px;scroll-margin-top:120px}
.group-title{font-size:22px;margin-bottom:18px;padding-left:12px;border-left:4px solid var(--primary)}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.product-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.22s;display:flex;flex-direction:column}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.product-thumb{aspect-ratio:4/3;width:100%;object-fit:cover;background:var(--bg-soft)}
.product-thumb.placeholder{display:flex;align-items:center;justify-content:center;font-size:46px;font-weight:800;color:rgba(30,41,59,.18);
  background:linear-gradient(135deg,#e8f5ee,#dbe7f0)}
.product-body{padding:18px 18px 20px}
.product-body h4{font-size:17px;margin-bottom:6px;color:var(--accent)}
.product-tag{color:var(--muted);font-size:14px;min-height:40px}
.model-badge{display:inline-block;margin-top:10px;background:var(--primary);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:var(--pill)}

/* ===== advantages ===== */
.advantages{background:var(--bg-soft);padding:70px 0}
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.adv-card{background:#fff;border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.adv-icon{width:54px;height:54px;color:var(--primary);background:var(--bg-soft);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.adv-icon svg{width:28px;height:28px}
.adv-card h4{font-size:18px;margin-bottom:8px}
.adv-card p{color:var(--muted);font-size:14px}

/* ===== applications ===== */
.applications{padding:70px 0}
.app-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.app-card{text-align:center;padding:24px 14px;border:1px solid var(--line);border-radius:var(--radius);transition:.2s}
.app-card:hover{border-color:var(--primary);box-shadow:var(--shadow)}
.app-icon{width:48px;height:48px;color:var(--primary);margin:0 auto 12px;display:flex;align-items:center;justify-content:center}
.app-icon svg{width:30px;height:30px}
.app-card h4{font-size:15px;margin-bottom:6px}
.app-card p{color:var(--muted);font-size:13px}

/* ===== CTA band ===== */
.cta-band{background:linear-gradient(120deg,var(--primary),var(--primary-dark));color:#fff;padding:60px 0;text-align:center}
.cta-inner h2{color:#fff;font-size:30px;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.88);margin-bottom:22px;font-size:17px}
.cta-band .btn-primary{background:#fff;color:var(--primary);border-color:#fff}
.cta-band .btn-primary:hover{background:rgba(255,255,255,.9)}

/* ===== page hero ===== */
.page-hero{background:linear-gradient(120deg,#1E293B,#0f172a);color:#fff;padding:64px 0}
.page-hero h1{color:#fff;font-size:40px;margin-bottom:10px}
.page-hero p{color:#cbd5e1;font-size:17px;max-width:680px}
.page-hero.slim{padding:40px 0}

/* ===== detail ===== */
.detail-hero{padding:36px 0 10px}
.crumb{font-size:13px;color:var(--muted);margin-bottom:22px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.crumb a:hover{color:var(--primary)}
.crumb .cur{color:var(--accent);font-weight:600}
.detail-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.detail-media .detail-thumb{width:100%;aspect-ratio:4/3;border-radius:var(--radius);object-fit:cover;background:var(--bg-soft)}
.detail-thumb.placeholder{display:flex;align-items:center;justify-content:center;font-size:62px;font-weight:800;color:rgba(30,41,59,.18);
  background:linear-gradient(135deg,#e8f5ee,#dbe7f0)}
.group-chip{display:inline-block;background:var(--bg-soft);color:var(--primary);font-weight:700;font-size:13px;padding:4px 14px;border-radius:var(--pill);margin-bottom:12px}
.detail-info h1{font-size:36px;margin-bottom:10px}
.detail-tag{color:var(--primary);font-weight:600;margin-bottom:12px}
.detail-summary{color:var(--muted);font-size:16px;margin-bottom:22px}
.detail-cta{display:flex;gap:12px;flex-wrap:wrap}

/* models */
.models{padding:30px 0}
.model-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.model-tab{padding:9px 20px;border:1px solid var(--line);background:#fff;border-radius:var(--pill);font-weight:700;color:var(--accent-2);cursor:pointer}
.model-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.model-panel{display:none}
.model-panel.active{display:block}
.model-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px;align-items:center}

/* spec table */
.spec-table{width:100%;border-collapse:collapse}
.spec-table th,.spec-table td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);font-size:14px}
.spec-table th{color:var(--muted);font-weight:600;width:45%}
.spec-table tr:hover{background:var(--bg-soft)}

/* features */
.features{padding:20px 0}
.feature-list{list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.feature-list li{display:flex;gap:10px;align-items:flex-start;color:var(--ink)}
.feature-list .i-mini{color:var(--primary);margin-top:4px;flex:0 0 auto}

/* desc */
.detail-desc{padding:20px 0 40px}
.detail-desc p{color:var(--muted);font-size:16px;white-space:pre-line}

/* related */
.related{padding:50px 0;background:var(--bg-soft)}

/* ===== about ===== */
.about-intro{padding:60px 0}
.about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}
.about-text h2{font-size:30px;margin-bottom:16px}
.about-text p{color:var(--muted);font-size:16px;white-space:pre-line}
.about-figure{aspect-ratio:1/1;border-radius:20px;background:linear-gradient(135deg,#e8f5ee,#dbe7f0);
  display:flex;align-items:center;justify-content:center;color:rgba(30,41,59,.22)}
.factory-strip{background:var(--bg-soft);padding:36px 0}
.certs{padding:30px 0;text-align:center}
.cert-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.cert-pill{background:#fff;border:1px solid var(--line);color:var(--accent);font-weight:700;padding:8px 20px;border-radius:var(--pill)}
.milestones{padding:50px 0}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tl-item{border-left:3px solid var(--primary);padding-left:16px}
.tl-year{font-size:22px;font-weight:800;color:var(--primary)}
.tl-text{color:var(--muted);font-size:14px;margin-top:6px}

/* ===== cases ===== */
.case-cat{padding:30px 0}
.case-list{display:flex;flex-direction:column;gap:28px}
.case-card{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.22s}
.case-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.case-card.reverse{direction:rtl}
.case-card.reverse>*{direction:ltr}
.case-thumb{aspect-ratio:16/10;border-radius:12px;object-fit:cover;background:var(--bg-soft)}
.case-thumb.placeholder{display:flex;align-items:center;justify-content:center;font-size:54px;font-weight:800;color:rgba(30,41,59,.18);
  background:linear-gradient(135deg,#e8f5ee,#dbe7f0)}
.case-body h4{font-size:20px;margin-bottom:10px}
.case-body p{color:var(--muted);margin-bottom:14px}
.case-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--accent-2);margin-bottom:12px}
.case-meta .i-mini{color:var(--primary)}
.case-machine{background:var(--bg-soft);color:var(--primary);padding:3px 12px;border-radius:var(--pill);font-weight:700}
.case-more{display:inline-flex;align-items:center;gap:5px;color:var(--primary);font-weight:700;font-size:14px}
.case-more .i-mini{transition:.2s}
.case-card:hover .case-more .i-mini{transform:translateX(4px)}

/* ===== news ===== */
.news-page{padding:40px 0 70px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.22s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.news-thumb{aspect-ratio:16/9;object-fit:cover;background:var(--bg-soft)}
.news-thumb.placeholder{display:flex;align-items:center;justify-content:center;font-size:44px;font-weight:800;color:rgba(30,41,59,.18);
  background:linear-gradient(135deg,#e8f5ee,#dbe7f0)}
.news-body{padding:18px;flex:1;display:flex;flex-direction:column}
.news-meta{display:flex;gap:10px;font-size:12px;color:var(--muted);margin-bottom:8px}
.news-cat{background:var(--bg-soft);color:var(--primary);padding:2px 10px;border-radius:var(--pill);font-weight:700}
.news-body h4{font-size:17px;margin-bottom:8px;color:var(--accent)}
.news-body p{color:var(--muted);font-size:14px;flex:1}
.pager{display:flex;gap:8px;justify-content:center;margin-top:36px}
.pager a{padding:8px 14px;border:1px solid var(--line);border-radius:8px;color:var(--accent-2);font-weight:700}
.pager a.active{background:var(--primary);color:#fff;border-color:var(--primary)}

/* article */
.article{padding:30px 0 50px}
.article-inner{max-width:820px}
.article-cover{width:100%;border-radius:var(--radius);margin-bottom:24px}
.article-body{font-size:17px;color:var(--ink);white-space:pre-line}
.article-nav{display:flex;justify-content:space-between;gap:16px;margin-top:36px;border-top:1px solid var(--line);padding-top:24px}
.article-nav a{color:var(--primary);font-weight:700;max-width:48%}

/* ===== contact ===== */
.contact-page{padding:50px 0 70px}
.contact-grid{display:grid;grid-template-columns:1.4fr .8fr;gap:40px;align-items:start}
.form-intro{color:var(--muted);margin-bottom:20px}
.contact-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.form-row{margin-bottom:16px}
.form-row.two{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-form label{display:block;font-weight:600;font-size:14px;margin-bottom:6px;color:var(--accent)}
.contact-form input,.contact-form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:15px;font-family:inherit;background:#fff}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--primary)}
.contact-info{background:var(--bg-soft);border-radius:var(--radius);padding:28px}
.contact-info h3{font-size:20px;margin-bottom:16px}
.ci-row{display:flex;align-items:center;gap:10px;margin-bottom:12px;color:var(--accent-2)}
.ci-row .i-mini{color:var(--primary)}
.ci-row a:hover{color:var(--primary)}
.cert-row{margin-top:14px;gap:8px}

/* thanks */
.thanks-page{padding:100px 0;text-align:center}
.thanks-inner{max-width:560px;margin:0 auto}
.thanks-icon{width:80px;height:80px;color:var(--primary);background:var(--bg-soft);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 20px}
.thanks-icon .i-hero{width:44px;height:44px}
.thanks-inner h1{font-size:32px;margin-bottom:12px}
.thanks-inner p{color:var(--muted);margin-bottom:24px}

/* ===== footer ===== */
.site-footer{background:var(--accent);color:#cbd5e1;padding-top:50px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:30px;padding-bottom:36px;align-items:stretch}
.footer-brand,.footer-col{display:flex;flex-direction:column;justify-content:flex-start;height:100%}
.footer-brand .brand{color:#fff;font-size:20px;margin-bottom:14px}
.footer-brand p{font-size:14px;margin-bottom:16px;max-width:340px}
.footer-contact>div{display:flex;align-items:center;gap:8px;font-size:13px;margin-bottom:8px}
.footer-contact a{color:#cbd5e1}
.footer-contact a:hover{color:#9ae6c4}
.footer-contact .i-mini{color:#9ae6c4}
.footer-social{display:flex;gap:10px;margin-top:16px}
.footer-social a{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.1);color:#fff;transition:background .2s,transform .2s}
.footer-social a:hover{background:rgba(255,255,255,.2);transform:translateY(-2px)}
.footer-social a svg{width:20px;height:20px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:14px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:9px}
.footer-col a{color:#cbd5e1;font-size:14px}
.footer-col a:hover{color:#9ae6c4}
.footer-bar{border-top:1px solid rgba(255,255,255,.1);padding:16px 0;font-size:13px;color:#94a3b8}
.footer-bar .container{text-align:center}
.footer-tech{margin-left:8px}
.footer-tech a{color:#9ae6c4}
.footer-tech a:hover{text-decoration:underline}

/* ===== float buttons（对齐 sanyingslipform.com） ===== */
.float-buttons {
  position: fixed; right: 1.5rem; bottom: 1.5rem;
  z-index: 9999; display: flex; flex-direction: column; gap: 0.75rem;
}
.float-btn {
  width: 52px; height: 52px; border-radius: 50%; border: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--white); box-shadow: var(--shadow-lg);
  transition: var(--transition); position: relative;
  cursor: pointer; -webkit-tap-highlight-color: transparent; user-select: none;
}
.float-btn:hover { transform: scale(1.1); }
.float-btn svg { width: 24px; height: 24px; }

.float-btn-label {
  position: absolute; right: 60px;
  background: var(--dark); color: var(--white);
  padding: 0.4rem 0.75rem; border-radius: var(--radius-sm);
  font-size: 0.8rem; white-space: nowrap;
  opacity: 0; visibility: hidden; transition: var(--transition);
}
.float-btn:hover .float-btn-label { opacity: 1; visibility: visible; }

.float-whatsapp { background: var(--whatsapp); }
.float-facebook { background: var(--facebook); }
.float-email { background: var(--secondary-light); }
.float-inquiry { background: var(--primary); }
.float-top { background: var(--gray); opacity: 0; visibility: hidden; transition: var(--transition); }
.float-top.visible { opacity: 1; visibility: visible; }

/* ===== responsive ===== */
@media (max-width:1024px){
  .product-grid,.adv-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
  .app-grid{grid-template-columns:repeat(3,1fr)}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .hero-inner{grid-template-columns:1fr}
  .hero-visual{max-width:480px}
  .detail-grid,.about-grid,.model-grid,.case-card,.contact-grid{grid-template-columns:1fr}
  .case-card.reverse{direction:ltr}
}
@media (max-width:680px){
  .topbar-util{font-size:12px}
  .util-certs{display:none}
  .util-left{gap:10px}
  .util-right{gap:10px}
  .main-nav{position:sticky;top:0}
  .nav-inner{height:56px}
  .brand{font-size:20px}
  .nav-menu{position:absolute;top:56px;left:0;right:0;background:var(--accent);flex-direction:column;align-items:stretch;
    padding:12px;gap:4px;display:none;border-top:1px solid rgba(255,255,255,.1);box-shadow:0 12px 24px rgba(0,0,0,.2)}
  .nav-menu.open{display:flex}
  .nav-toggle{display:flex}
  .nav-menu a.btn-quote{margin:6px 0 0}
  .hero-inner{padding-top:50px;padding-bottom:60px}
  .hero-text h1{font-size:30px;line-height:1.15;margin-bottom:14px}
  .hero-sub{font-size:16px;margin-bottom:22px}
  .hero-badge{margin-bottom:14px}
  .stats-row{grid-template-columns:repeat(2,1fr);gap:14px}
  .stat-value{font-size:30px}
  .product-grid,.adv-grid,.news-grid,.app-grid,.timeline{grid-template-columns:1fr}
  .feature-list{grid-template-columns:1fr}
  .section-head h2{font-size:26px}
  .page-hero h1{font-size:30px}
  .page-hero{padding:70px 0 50px}
  .float-buttons { right: 1rem; bottom: 1rem; }
  .float-btn { width: 46px; height: 46px; }
  .float-btn svg { width: 20px; height: 20px; }
  /* 头部文案左右留白 + 右上角图标只显示图形 */
  .container{padding:0 20px}
  .util-txt{display:none}
  .util-right{gap:12px}
  .util-wa,.util-phone{font-size:0}
  .util-wa .i-mini,.util-phone .i-mini{width:18px;height:18px}
  /* 底部移动端单列，避免挤压显示不全 */
  .footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:28px}
  .footer-brand p{max-width:none}
  .footer-bar .container{font-size:12px;line-height:1.9}
  .footer-tech{display:block;margin:6px 0 0}
}