:root{--primary:#0f766e;--primary-2:#0d9488;--ink:#10212b;--muted:#5b6b78;--soft:#f2fbfa;--line:#dbe7ee;--amber:#d8a03d;--amber-2:#f1c45c;--dark:#062a35;--r:18px;--shadow:0 18px 54px rgba(8,47,58,.12);--nav:68px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav)}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;color:var(--ink);line-height:1.75;background:#fff;padding-bottom:0}
a{text-decoration:none;color:inherit}img{display:block;max-width:100%}
.container{width:min(1200px,calc(100% - 48px));margin:auto}
.nav{position:fixed;inset:0 0 auto;height:var(--nav);z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(219,231,238,.9);box-shadow:0 10px 28px rgba(8,47,58,.06)}
.nav-inner{height:100%;display:flex;align-items:center;justify-content:space-between;width:min(1200px,calc(100% - 48px));margin:auto}
.nav-logo,.footer-logo{display:inline-flex;align-items:center;gap:10px;font-weight:900;color:var(--ink)}
.brand-mark{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:10px;background:linear-gradient(135deg,#dff7f3,#fff4d6);color:var(--primary);font-size:12px;box-shadow:inset 0 1px 0 #fff,0 8px 22px rgba(15,118,110,.16)}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none}
.nav-links a{display:inline-flex;padding:9px 13px;border-radius:999px;color:#233943;font-size:14px;font-weight:650}
.nav-links a:hover,.nav-links a.active{background:#e9f8f5;color:var(--primary)}
.nav-phone{margin-left:8px!important;background:linear-gradient(135deg,var(--primary),var(--primary-2))!important;color:#fff!important;padding:10px 20px!important;box-shadow:0 12px 28px rgba(15,118,110,.22)}
.hamburger{display:none;background:none;border:0;gap:5px;flex-direction:column}.hamburger span{display:block;width:26px;height:2px;background:var(--primary);border-radius:3px}
.mobile-overlay{display:none}.mobile-menu{position:fixed;top:0;right:-330px;width:310px;height:100vh;background:#fff;z-index:60;padding:92px 24px 24px;box-shadow:var(--shadow);transition:.35s;display:flex;flex-direction:column;gap:6px}
.mobile-menu.open{right:0}.mobile-menu a{padding:13px 14px;border-radius:12px;font-weight:700;color:var(--ink)}.mobile-menu a.active,.mobile-menu a:hover{background:var(--soft);color:var(--primary)}
.mobile-phone{background:linear-gradient(135deg,var(--primary),var(--primary-2))!important;color:#fff!important;text-align:center;margin-top:12px}.mobile-overlay.show{display:block;position:fixed;inset:0;background:rgba(6,42,53,.42);z-index:55}
.hero{position:relative;min-height:min(650px,100vh);display:grid;place-items:center;overflow:hidden;background:var(--dark);padding-top:var(--nav)}
.hero-media,.hero-shade{position:absolute;inset:0}.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.88}
.hero-shade{background:linear-gradient(90deg,rgba(6,42,53,.86),rgba(6,42,53,.36),rgba(6,42,53,.78)),linear-gradient(to top,rgba(6,42,53,.78),rgba(6,42,53,.12))}
.hero-content{position:relative;z-index:1;text-align:center;color:#fff;width:min(940px,calc(100% - 44px));padding:60px 0}
.hero-pill{display:inline-flex;gap:10px;align-items:center;padding:8px 10px 8px 16px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:999px;margin-bottom:22px;color:rgba(255,255,255,.82);font-size:14px}
.hero-pill b{background:linear-gradient(135deg,var(--amber),var(--amber-2));color:#10212b;border-radius:999px;padding:6px 12px}
.hero h1{font-size:clamp(42px,7vw,76px);line-height:1.05;font-weight:950;text-shadow:0 12px 28px rgba(0,0,0,.24)}
.hero p{font-size:clamp(17px,2vw,24px);color:rgba(255,255,255,.86);margin:18px 0 28px}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 24px;border-radius:999px;font-weight:850;border:1px solid transparent}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 14px 34px rgba(15,118,110,.28)}
.btn-ghost{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.08)}.btn-light{background:#fff;color:var(--primary)}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:34px auto 0;max-width:660px}.hero-stats div{padding:16px;border-radius:18px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14)}
.hero-stats strong{display:block;font-size:28px;color:#f5d98c}.hero-stats span{color:rgba(255,255,255,.72);font-size:13px}
.section,.diagnosis-section{padding:clamp(58px,8vw,96px) 0}.section-soft{background:linear-gradient(180deg,#f7fcfc,#eef8f7)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:28px}.section-head h2,.feature-text h2,.diagnosis-layout h2,.leak-estimator h2,.site-cta h2{font-size:clamp(28px,4vw,44px);line-height:1.16}
.eyebrow,.card-kicker{display:inline-flex;width:max-content;padding:5px 11px;border-radius:999px;background:#e9f8f5;color:var(--primary);font-size:13px;font-weight:850;margin-bottom:12px}
.diagnosis-section{margin-top:-34px;position:relative;z-index:3;padding-top:0}.diagnosis-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:28px;align-items:center;background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);padding:30px}
.diagnosis-layout p,.feature-text p,.leak-estimator p,.site-cta p{color:var(--muted);margin-top:10px}.diagnosis-panel{background:#f7fbfc;border:1px solid var(--line);border-radius:20px;padding:16px}
.diagnosis-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.diagnosis-tab{border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px;font-weight:850;color:var(--ink);cursor:pointer}.diagnosis-tab span{display:block;color:var(--primary);font-size:20px}.diagnosis-tab.active{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff}.diagnosis-tab.active span{color:#fff}
.diagnosis-result{margin-top:12px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px}.diagnosis-result p{color:var(--muted);margin:8px 0 12px}.diagnosis-result a{color:var(--primary);font-weight:900}
.service-grid-modern,.case-grid,.article-grid,.process-grid,.chip-grid,.stats-grid,.contact-grid{display:grid;gap:18px}.service-grid-modern{grid-template-columns:repeat(3,1fr)}
.service-card,.case-card,.article-list-card,.process-card,.chip-card,.contact-grid div{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 10px 32px rgba(8,47,58,.06);overflow:hidden;transition:.25s}
.service-card:hover,.case-card:hover,.article-list-card:hover,.process-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.service-card img,.case-card img{height:220px;width:100%;object-fit:cover}.service-card-body,.case-body{padding:20px}.service-card h3{margin-bottom:8px}.service-card p,.case-card p,.article-list-card p{color:var(--muted);font-size:15px}.text-link{display:inline-block;margin-top:14px;color:var(--primary);font-weight:900}
.tools-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center}.leak-estimator{background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow)}
.estimator-controls{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}.estimator-controls label{font-size:13px;color:var(--muted);font-weight:850}.estimator-controls select,.estimator-controls input{margin-top:6px;width:100%;border:1px solid var(--line);border-radius:12px;padding:12px;font:inherit}
.estimator-result{margin-top:14px;background:linear-gradient(135deg,#e9f8f5,#fff6dc);border-radius:14px;padding:15px;color:#0f5f67;font-weight:950}.modern-icons-img{border-radius:24px;box-shadow:var(--shadow);background:#fff}.modern-tool-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:14px}.modern-tool-cards div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}.modern-tool-cards span{color:var(--muted);font-size:14px}
.case-grid{grid-template-columns:repeat(2,1fr)}.case-meta,.mini-facts{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.case-meta b,.mini-facts span{background:#eef8f7;color:var(--primary);border-radius:999px;padding:5px 10px;font-size:13px}
.process-band{display:grid;grid-template-columns:.78fr 1.22fr;gap:30px;align-items:center}.process-grid{grid-template-columns:repeat(3,1fr)}.process-card{padding:22px}.process-card b{color:var(--amber);font-size:32px}.process-card h3{margin:6px 0}.process-card p{color:var(--muted);font-size:14px}
.page-banner{position:relative;min-height:320px;margin-top:var(--nav);display:grid;place-items:center;overflow:hidden;background:var(--dark);text-align:center;color:#fff}.banner-bg,.banner-overlay{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.banner-bg{opacity:.72}.banner-overlay{background:linear-gradient(90deg,rgba(6,42,53,.94),rgba(6,42,53,.62)),linear-gradient(to top,rgba(6,42,53,.9),transparent)}.banner-content{position:relative;width:min(920px,calc(100% - 40px));padding:40px 0}.banner-breadcrumb{display:flex;justify-content:center;gap:9px;color:rgba(255,255,255,.72);font-size:14px;margin-bottom:10px}.page-banner h1{font-size:clamp(34px,5vw,56px);line-height:1.08}.page-banner p{color:rgba(255,255,255,.8);margin-top:12px}
.feature-row{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:center}.feature-img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:24px;box-shadow:var(--shadow)}
.chip-grid{grid-template-columns:repeat(4,1fr)}.chip-card{padding:18px;font-weight:850}.chip-card span{color:var(--primary);margin-right:8px}
.filter-tabs{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:26px}.filter-tabs button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 18px;font-weight:850;cursor:pointer}.filter-tabs button.active{background:var(--primary);color:#fff}
.article-grid{grid-template-columns:repeat(3,1fr)}.article-list-card{padding:24px}.article-list-card span{color:var(--primary);font-weight:900;font-size:13px}.article-list-card h3{margin:10px 0}.article-list-card small{display:block;margin-top:14px;color:var(--primary);font-weight:850}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px}.article-card,.side-card{background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:0 10px 32px rgba(8,47,58,.06);padding:30px}.article-card h2{font-size:34px;line-height:1.2}.article-card h3{margin-top:24px}.article-card p{color:var(--muted);margin-top:12px}.article-meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:12px}.article-meta span{background:#eef8f7;color:var(--primary);border-radius:999px;padding:5px 10px;font-size:13px;font-weight:850}.side-card a{display:block;padding:12px 0;border-bottom:1px solid var(--line);color:var(--muted)}
.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}.faq-q{width:100%;background:#fff;border:0;padding:18px 20px;display:flex;justify-content:space-between;align-items:center;text-align:left;font-weight:900;font-size:16px;color:var(--ink);cursor:pointer}.faq-a{display:none;padding:0 20px 20px;color:var(--muted)}.faq-item.open .faq-a{display:block}
.stats-grid{grid-template-columns:repeat(4,1fr)}.stats-grid div{background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px;text-align:center}.stats-grid strong{display:block;font-size:36px;color:var(--primary)}.stats-grid span{color:var(--muted)}
.contact-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px}.contact-hero-card{background:linear-gradient(135deg,#e9f8f5,#fff6dc);border-radius:26px;padding:34px;box-shadow:var(--shadow)}.contact-hero-card h2{font-size:48px}.contact-grid{grid-template-columns:repeat(2,1fr)}.contact-grid div{padding:22px}.contact-grid strong{display:block}.contact-grid span{color:var(--muted)}
.site-cta{background:linear-gradient(135deg,var(--dark),#0f5f67);color:#fff;padding:58px 0}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:24px}.site-cta p{color:rgba(255,255,255,.72)}.footer{background:#041f28;color:rgba(255,255,255,.72);padding:46px 0 26px}.footer-grid{display:grid;grid-template-columns:1fr 1.1fr .8fr;gap:28px}.footer-logo{color:#fff}.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.footer-contact{display:grid;gap:4px}.footer-contact strong{font-size:24px;color:#fff}.copyright{text-align:center;margin-top:28px;color:rgba(255,255,255,.42);font-size:13px}
.floating-contact{position:fixed;right:22px;bottom:90px;z-index:70;display:grid;gap:10px}.floating-contact a,.back-top{border:0;border-radius:999px;box-shadow:0 14px 32px rgba(8,47,58,.2);font-weight:900}.floating-contact a{padding:12px 16px}.float-phone{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff}.float-diagnosis{background:linear-gradient(135deg,var(--amber),var(--amber-2));color:var(--ink)}.back-top{position:fixed;right:24px;bottom:28px;width:46px;height:46px;background:var(--primary);color:#fff;opacity:0;pointer-events:none;z-index:70}.back-top.show{opacity:1;pointer-events:auto}
.reveal{opacity:0;transform:translateY(22px);transition:.6s}.reveal.visible{opacity:1;transform:none}
@media(max-width:1024px){.nav-links{display:none}.hamburger{display:flex}.service-grid-modern,.article-grid,.process-grid{grid-template-columns:repeat(2,1fr)}.diagnosis-layout,.tools-grid,.process-band,.feature-row,.contact-layout,.article-layout{grid-template-columns:1fr}.chip-grid,.stats-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr}.footer-links{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){body{padding-bottom:72px}.container,.nav-inner{width:calc(100% - 32px)}.hero{min-height:520px}.hero-content{padding:32px 0}.hero-pill{flex-direction:column;border-radius:18px;gap:6px}.hero h1{font-size:36px}.hero p{font-size:16px;margin:12px 0 18px}.hero-actions .btn{width:100%}.hero-stats{grid-template-columns:repeat(3,1fr);gap:8px;margin-top:18px}.hero-stats div{padding:10px 6px}.hero-stats strong{font-size:20px}.hero-stats span{font-size:12px}.diagnosis-section{margin-top:0;padding-top:22px}.diagnosis-layout{padding:20px;border-radius:20px}.diagnosis-tabs{grid-template-columns:1fr}.diagnosis-tab{display:flex;align-items:center;gap:10px;text-align:left}.diagnosis-tab span{display:inline}.section,.diagnosis-section{padding:52px 0}.section-head{display:block}.section-head a{display:inline-block;margin-top:10px;color:var(--primary);font-weight:900}.service-grid-modern,.case-grid,.article-grid,.process-grid,.chip-grid,.stats-grid,.contact-grid{grid-template-columns:1fr}.service-card img,.case-card img{height:190px}.estimator-controls,.modern-tool-cards{grid-template-columns:1fr}.page-banner{min-height:190px;padding:42px 0}.page-banner h1{font-size:31px}.feature-img{aspect-ratio:16/11}.article-card,.side-card{padding:22px}.article-card h2{font-size:26px}.cta-inner{display:block}.cta-inner .btn{width:100%;margin-top:18px}.floating-contact{left:10px;right:10px;bottom:10px;grid-template-columns:1fr 1fr}.floating-contact a{text-align:center;border-radius:12px;padding:12px 8px}.back-top{right:16px;bottom:86px}.mobile-menu{width:min(84vw,310px)}}
@media(max-width:420px){.hero{min-height:500px}.hero h1{font-size:32px}.hero-stats strong{font-size:18px}.page-banner{min-height:174px}.page-banner h1{font-size:28px}.contact-hero-card h2{font-size:34px}}

/* Commercial polish layer */
.nav { box-shadow: 0 8px 26px rgba(8, 47, 58, .055); }
.nav-logo { font-size: 17px; }
.nav-links a { font-weight: 760; }
.hero { min-height: min(620px, 92vh); }
.hero-carousel, .hero-slide, .hero-shade { position: absolute; inset: 0; }
.hero-slide { opacity: 0; transition: opacity .9s ease; }
.hero-slide.active { opacity: 1; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-slide:nth-child(1) img { object-position: 58% center; }
.hero-slide:nth-child(2) img { object-position: center; }
.hero-slide:nth-child(3) img { object-position: 45% center; }
.hero-shade { background: linear-gradient(90deg, rgba(5, 31, 40, .9), rgba(5, 31, 40, .38), rgba(5, 31, 40, .76)), linear-gradient(to top, rgba(5, 31, 40, .75), rgba(5, 31, 40, .1)); }
.hero-content { padding-top: 42px; }
.hero h1 { font-size: clamp(46px, 6.8vw, 72px); letter-spacing: 0; }
.hero p { max-width: 760px; margin-left: auto; margin-right: auto; }
.hero-dots { position: absolute; z-index: 4; left: 50%; bottom: 28px; transform: translateX(-50%); display: flex; gap: 9px; }
.hero-dots button { width: 8px; height: 8px; border: 0; border-radius: 999px; background: rgba(255,255,255,.45); cursor: pointer; transition: .25s; }
.hero-dots button.active { width: 28px; background: #f1c45c; }
.hero-stats div, .diagnosis-layout, .service-card, .case-card, .article-list-card, .process-card, .article-card, .side-card { backdrop-filter: blur(10px); }
.section-head h2, .feature-text h2, .diagnosis-layout h2, .leak-estimator h2 { letter-spacing: 0; }
.service-card img, .case-card img, .feature-img, .modern-icons-img { filter: saturate(.94) contrast(.98); }
.service-card, .case-card, .article-list-card, .process-card { border-color: rgba(199, 220, 226, .86); }
.service-card-body, .case-body { padding: 22px; }
.service-card h3, .case-card h3 { font-size: 20px; line-height: 1.28; }
.floating-contact { bottom: 92px; }
.float-phone, .nav-phone, .btn-primary { background: linear-gradient(135deg, #0f766e, #0c8f87) !important; }
.float-diagnosis { background: linear-gradient(135deg, #d9a441, #f0c866) !important; }
.page-banner { min-height: 292px; }
.banner-overlay { background: linear-gradient(90deg, rgba(5, 31, 40, .9), rgba(5, 31, 40, .58)), linear-gradient(to top, rgba(5, 31, 40, .86), rgba(5, 31, 40, .08)); }
.banner-bg { filter: saturate(.92) contrast(.98); }
.contact-modal { position: fixed; inset: 0; z-index: 100; display: none; align-items: center; justify-content: center; padding: 20px; }
.contact-modal.show { display: flex; }
.contact-modal-backdrop { position: absolute; inset: 0; background: rgba(5,31,40,.48); backdrop-filter: blur(4px); }
.contact-dialog { position: relative; width: min(520px, 100%); background: #fff; border: 1px solid rgba(219,231,238,.95); border-radius: 26px; box-shadow: 0 32px 90px rgba(5,31,40,.28); padding: 32px; animation: dialogIn .22s ease; }
@keyframes dialogIn { from { opacity: 0; transform: translateY(14px) scale(.98); } to { opacity: 1; transform: none; } }
.contact-close { position: absolute; right: 18px; top: 16px; width: 34px; height: 34px; border: 0; border-radius: 50%; background: #eef7f8; color: #0f766e; font-size: 22px; cursor: pointer; }
.contact-dialog h2 { font-size: clamp(26px, 5vw, 34px); line-height: 1.18; margin: 4px 0 12px; letter-spacing: 0; }
.contact-dialog p { color: var(--muted); }
.contact-dialog-phone { margin: 18px 0; padding: 16px; border-radius: 18px; background: linear-gradient(135deg, #e9f8f5, #fff6dc); color: #0f5f67; font-size: 30px; font-weight: 950; text-align: center; letter-spacing: .5px; }
.contact-dialog-actions { display: grid; grid-template-columns: 1fr 120px; gap: 10px; }
.btn-ghost-dark { background: #eef7f8; color: #0f5f67; border-color: #dbe7ee; }
.contact-dialog-points { margin-top: 18px; display: grid; gap: 8px; color: #48606c; padding-left: 18px; font-size: 14px; }
@media (max-width: 768px) {
  .hero { min-height: 500px; }
  .hero-content { padding-top: 24px; }
  .hero h1 { font-size: 34px; letter-spacing: 0; }
  .hero-dots { bottom: 16px; }
  .page-banner { min-height: 168px; padding: 34px 0; }
  .page-banner h1 { font-size: 27px; }
  .contact-dialog { padding: 24px; border-radius: 22px; }
  .contact-dialog-actions { grid-template-columns: 1fr; }
  .contact-dialog-phone { font-size: 25px; }
}



/* Mobile final tuning */
@media (max-width: 768px) {
  body { overflow-x: hidden; padding-bottom: 66px; }
  .nav { height: 62px; }
  :root { --nav: 62px; }
  .hero { min-height: 456px; align-items: start; }
  .hero-content { width: calc(100% - 32px); padding: 22px 0 34px; }
  .hero-pill { flex-direction: row; max-width: 100%; margin-bottom: 14px; padding: 7px 8px 7px 12px; font-size: 13px; }
  .hero-pill b { padding: 5px 9px; }
  .hero h1 { font-size: 31px; line-height: 1.12; }
  .hero p { font-size: 15px; line-height: 1.55; margin: 10px auto 14px; }
  .hero-actions { gap: 9px; }
  .hero-actions .btn { min-height: 43px; padding: 9px 14px; font-size: 15px; }
  .hero-stats { width: 100%; max-width: none; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 7px; margin-top: 14px; }
  .hero-stats div { min-width: 0; border-radius: 14px; padding: 9px 4px; }
  .hero-stats strong { font-size: 18px; line-height: 1.15; }
  .hero-stats span { display: block; font-size: 11px; white-space: normal; line-height: 1.25; }
  .hero-dots { bottom: 12px; }
  .diagnosis-section { padding-top: 26px; }
  .diagnosis-layout { gap: 18px; }
  .diagnosis-layout h2 { font-size: 29px; }
  .floating-contact { left: 8px; right: 8px; bottom: 8px; gap: 8px; }
  .floating-contact a { min-height: 44px; display: flex; align-items: center; justify-content: center; font-size: 14px; line-height: 1.2; }
}
@media (max-width: 420px) {
  .hero { min-height: 440px; }
  .hero h1 { font-size: 29px; }
  .hero-actions .btn { font-size: 14px; }
  .hero-stats strong { font-size: 17px; }
}

/* Mobile overflow guard */
@media (max-width: 768px) {
  .hero-content, .diagnosis-layout, .container { max-width: calc(100vw - 32px); }
  .hero h1, .hero p { max-width: 100%; overflow-wrap: anywhere; }
  .hero-stats { grid-template-columns: repeat(3, calc((100vw - 46px) / 3)); justify-content: center; overflow: hidden; }
  .hero-stats div { width: 100%; max-width: 100%; }
  .floating-contact { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .floating-contact a { min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
}
@media (max-width: 360px) {
  .hero-stats { grid-template-columns: repeat(3, calc((100vw - 40px) / 3)); gap: 4px; }
  .hero-stats span { font-size: 10px; }
  .floating-contact a { font-size: 13px; }
}

/* Mobile overflow hard fix */
@media (max-width: 768px) {
  .hero-content { width: calc(100vw - 32px) !important; max-width: calc(100vw - 32px) !important; }
  .hero p { width: 100% !important; }
  .hero-stats { width: calc(100vw - 32px) !important; max-width: calc(100vw - 32px) !important; grid-template-columns: repeat(3, minmax(0, 1fr)) !important; margin-left: auto !important; margin-right: auto !important; }
  .hero-stats div { min-width: 0 !important; width: auto !important; }
  .floating-contact { width: calc(100vw - 16px) !important; max-width: calc(100vw - 16px) !important; }
}
/* Launch polish */
:root { --shadow: 0 10px 28px rgba(8,47,58,.075); --line:#d8e5e9; }
.nav { box-shadow: 0 4px 18px rgba(8,47,58,.045); }
.service-card,.case-card,.article-list-card,.process-card,.chip-card,.contact-grid div,.article-card,.side-card,.diagnosis-layout,.leak-estimator,.contact-hero-card { box-shadow: 0 8px 22px rgba(8,47,58,.055); }
.service-card:hover,.case-card:hover,.article-list-card:hover,.process-card:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(8,47,58,.085); }
.hero-stats div { backdrop-filter: none; background: rgba(255,255,255,.075); }
.brand-logo { position: relative; overflow: hidden; width: 32px; height: 32px; border-radius: 10px; background: linear-gradient(145deg,#e7fbf8,#fff4d6); border: 1px solid rgba(15,118,110,.16); box-shadow: inset 0 1px 0 #fff; }
.logo-core { position: relative; z-index: 2; color: #0f766e; font-weight: 900; font-size: 13px; }
.logo-drop { position: absolute; left: 7px; top: 5px; width: 18px; height: 21px; border-radius: 12px 12px 14px 14px; background: linear-gradient(180deg,#36c7bd,#0f766e); transform: rotate(45deg); opacity: .16; }
.logo-wave { position: absolute; left: -42%; right: -42%; bottom: 4px; height: 10px; background: linear-gradient(90deg,transparent,rgba(15,148,136,.42),transparent); border-radius: 999px; animation: logoWater 2.8s linear infinite; }
@keyframes logoWater { from { transform: translateX(-22%); } to { transform: translateX(22%); } }
.diagnosis-result a,.float-diagnosis { animation: softBounce 2.7s ease-in-out infinite; }
@keyframes softBounce { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-2px); } }
.beijing-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: start; }
.beijing-only { background: #fff; }
.beijing-only h2,.quality-system h2,.pro-tools h2 { line-height: 1.18; }
.district-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 18px; }
.district-tags span { border: 1px solid var(--line); background: #f7fbfb; color: #0f5f67; border-radius: 999px; padding: 7px 12px; font-weight: 800; font-size: 13px; }
.service-note { border: 1px solid var(--line); border-radius: 18px; padding: 22px; background: #f8fbfb; }
.service-note strong { display: block; color: var(--ink); margin-bottom: 5px; }
.service-note p { color: var(--muted); margin: 0 0 14px; }
.quality-system { background: linear-gradient(180deg,#f8fbfb,#fff); }
.quality-grid,.pro-tool-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.quality-grid > div,.pro-tool { border: 1px solid var(--line); background: #fff; border-radius: 18px; padding: 22px; }
.quality-grid p,.pro-tool p { color: var(--muted); margin-top: 8px; font-size: 15px; }
.tool-icon { display: inline-grid; place-items: center; width: 38px; height: 38px; margin-bottom: 12px; border-radius: 13px; background: linear-gradient(145deg,#e7fbf8,#fff4d6); color: #0f766e; font-weight: 950; box-shadow: inset 0 1px 0 #fff; }
.mini-form { display: grid; gap: 10px; margin: 16px 0 12px; }
.mini-form label { color: var(--muted); font-weight: 800; font-size: 13px; }
.mini-form select { width: 100%; margin-top: 5px; border: 1px solid var(--line); border-radius: 12px; padding: 11px 12px; background: #fff; font: inherit; }
.tool-result { border-radius: 14px; border: 1px solid #cfe5e4; background: #f2fbfa; color: #0f5f67; padding: 13px 14px; font-weight: 850; }
.material-tabs { display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; margin: 16px 0 12px; }
.material-tabs button { border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 9px 10px; color: var(--ink); font-weight: 850; cursor: pointer; }
.material-tabs button.active { background: #0f766e; color: #fff; border-color: #0f766e; }
.checklist label { display: flex; align-items: center; gap: 9px; color: #445b66; margin-top: 9px; }
.checklist input { width: 16px; height: 16px; accent-color: #0f766e; }
@media (max-width: 900px) {
  .beijing-grid,.quality-grid,.pro-tool-grid { grid-template-columns: 1fr; }
  .material-tabs { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
  .brand-logo { width: 30px; height: 30px; }
  .quality-grid > div,.pro-tool,.service-note { padding: 18px; border-radius: 16px; }
}


.hero.reveal,.page-banner.reveal{opacity:1!important;transform:none!important}
.reveal{opacity:1!important;transform:none!important}
@media (max-width: 520px){.hero-stats{display:none!important}.hero{min-height:390px!important}.hero-dots{bottom:10px!important}}