:root{--ink:#0b1320;--ink-2:#132134;--paper:#f4f1ea;--paper-2:#ebe6dc;--mint:#2bd4a6;--mint-dark:#159b7c;--coral:#ff7a5c;--white:#fff;--muted:#637083;--line:rgba(11,19,32,.12);--radius:22px;--shadow:0 24px 80px rgba(11,19,32,.14)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--paper);color:var(--ink);line-height:1.5}a{color:inherit}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.topbar{height:76px;display:flex;align-items:center;gap:34px;padding:0 clamp(18px,4vw,64px);background:rgba(244,241,234,.9);backdrop-filter:blur(18px);position:sticky;top:0;z-index:30;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-size:1.05rem;font-weight:800;letter-spacing:-.03em}.brand-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:11px;background:var(--ink);color:var(--mint);font-weight:900}.nav{display:flex;gap:26px;margin-left:auto}.nav a{text-decoration:none;color:#354257;font-size:.9rem;font-weight:650}.nav a:hover{color:var(--ink)}.lang-switch{display:flex;gap:4px;padding:4px;border:1px solid var(--line);border-radius:999px}.lang-switch button{border:0;background:transparent;padding:6px 9px;border-radius:999px;cursor:pointer;color:var(--muted);font-weight:750}.lang-switch button.active{background:var(--ink);color:var(--white)}.hero{max-width:1440px;margin:auto;min-height:calc(100vh - 76px);padding:clamp(54px,8vw,112px) clamp(20px,6vw,90px);display:grid;grid-template-columns:minmax(0,1.02fr) minmax(340px,.78fr);align-items:center;gap:clamp(38px,7vw,100px)}.hero-copy{max-width:690px}.eyebrow{font-size:.74rem;letter-spacing:.16em;font-weight:850;color:var(--mint-dark);margin:0 0 18px}.hero h1{font-size:clamp(2.85rem,5.25vw,5.45rem);line-height:.98;letter-spacing:-.055em;margin:0 0 28px;max-width:820px}html[lang="zh"] .hero h1{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;font-weight:800;letter-spacing:-.045em;line-height:1.04}.hero-lede{font-size:clamp(1.04rem,1.8vw,1.3rem);color:#4f5d70;max-width:680px;margin:0 0 28px}.trust-row{display:flex;flex-wrap:wrap;gap:8px;margin:0}.trust-row span{padding:8px 12px;border:1px solid var(--line);border-radius:999px;font-size:.82rem;font-weight:700;background:rgba(255,255,255,.4)}.button{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border-radius:999px;padding:13px 19px;font-weight:780;border:1px solid transparent;transition:.2s 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10px}.status-dot{width:7px;height:7px;background:var(--mint);border-radius:50%;box-shadow:0 0 0 4px rgba(43,212,166,.12)}.chat-messages{height:310px;overflow-y:auto;padding:22px;display:flex;flex-direction:column;gap:11px}.message{max-width:86%;padding:11px 13px;border-radius:16px;font-size:.93rem;white-space:pre-wrap}.message.assistant{align-self:flex-start;background:#19283c;color:#edf2f7;border-bottom-left-radius:4px}.message.user{align-self:flex-end;background:var(--mint);color:#071611;border-bottom-right-radius:4px;font-weight:590}.message.error{align-self:flex-start;background:#42231f;color:#ffd9cf}.quick-actions{display:flex;gap:7px;overflow-x:auto;padding:0 22px 16px}.quick-actions button{white-space:nowrap;border:1px solid rgba(255,255,255,.14);background:transparent;color:#d9e1ea;border-radius:999px;padding:8px 11px;cursor:pointer}.quick-actions button:hover{border-color:var(--mint);color:var(--mint)}.chat-form{padding:0 18px 18px}.chat-form textarea{width:100%;resize:none;border:1px solid rgba(255,255,255,.12);background:#111e2e;color:var(--white);border-radius:15px;padding:13px 14px;font:inherit;outline:none}.chat-form textarea:focus{border-color:var(--mint)}.chat-form-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:9px}.chat-state{min-height:1em;font-size:.75rem;color:#aab5c4}.send-button{border:0;background:var(--mint);color:#071611;border-radius:999px;padding:9px 16px;font-weight:850;cursor:pointer}.send-button:disabled{opacity:.45;cursor:wait}.chat-note{color:#8997a9;font-size:.71rem;margin:0;padding:0 22px 20px}.contact-fallback{padding:2px 4px 0}.contact-fallback>p{margin:0 0 9px;text-align:center;color:var(--muted);font-size:.78rem}.contact-fallback-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}.contact-fallback .button{width:100%;min-height:48px}.signal-strip{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);max-width:1440px;margin:auto}.signal-strip>div{padding:25px clamp(20px,4vw,55px);border-right:1px solid var(--line);display:flex;flex-direction:column;gap:4px}.signal-strip>div:last-child{border-right:0}.signal-strip strong{font-size:.92rem}.signal-strip span{color:var(--muted);font-size:.82rem}.section{padding:clamp(72px,9vw,120px) clamp(20px,6vw,90px)}.section-light{background:#fff}.section-heading{max-width:720px;margin:0 auto 48px;text-align:center}.section-heading h2,.area-copy h2,.final-cta h2{font-size:clamp(2.2rem,4.2vw,4.4rem);line-height:.98;letter-spacing:-.052em;margin:0 0 18px}.section-heading>p:last-child,.area-copy>p:last-child,.final-cta>p:not(.eyebrow){color:var(--muted);font-size:1.05rem}.appliance-grid{max-width:1200px;margin:auto;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.appliance-grid article{padding:30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:190px}.appliance-grid article>span{font-size:.72rem;color:var(--mint-dark);font-weight:850}.appliance-grid h3{font-size:1.28rem;margin:32px 0 8px}.appliance-grid p{margin:0;color:var(--muted);font-size:.9rem}.process-section{background:var(--ink);color:var(--white)}.section-heading.inverse .eyebrow{color:var(--mint)}.section-heading.inverse h2{color:var(--white)}.steps{max-width:1200px;margin:auto;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,.1)}.steps article{background:var(--ink);padding:38px}.steps article>span{display:grid;place-items:center;width:38px;height:38px;border:1px solid rgba(255,255,255,.18);border-radius:50%;color:var(--mint);font-weight:850}.steps h3{font-size:1.22rem;margin:40px 0 10px}.steps p{color:#9eabba;margin:0}.area-section{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;max-width:1300px;margin:auto}.area-copy{max-width:590px}.area-map{height:430px;background:var(--paper-2);border-radius:34px;position:relative;overflow:hidden;border:1px solid var(--line)}.ring{position:absolute;border:1px solid rgba(11,19,32,.16);border-radius:50%}.ring-a{width:360px;height:360px;left:50%;top:50%;transform:translate(-50%,-50%)}.ring-b{width:220px;height:220px;left:50%;top:50%;transform:translate(-50%,-50%)}.pin{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:78px;height:78px;border-radius:24px 24px 24px 5px;background:var(--coral);display:grid;place-items:center;font-weight:900;font-size:1.25rem;box-shadow:0 18px 45px rgba(255,122,92,.32)}.final-cta{background:var(--mint);padding:clamp(75px,10vw,130px) 20px;text-align:center}.final-cta .eyebrow{color:#0b5a47}.final-cta>p:not(.eyebrow){color:#17483d!important;margin-bottom:28px}footer{padding:38px clamp(20px,6vw,90px);background:var(--ink);color:#b8c2cf;display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:26px;font-size:.82rem}footer>div:first-child{display:flex;gap:10px;align-items:center}footer strong{color:var(--white)}.footer-links{display:flex;gap:18px}.footer-links a{text-decoration:none}.footer-links a:hover{color:var(--mint)}footer p{margin:0}@media(max-width:900px){.nav{display:none}.topbar{height:68px}.hero{grid-template-columns:1fr;padding-top:52px}.hero-copy{max-width:none}.hero h1{font-size:clamp(2.9rem,11vw,5.4rem)}.chat-column{max-width:650px;width:100%;justify-self:center}.signal-strip{grid-template-columns:1fr}.signal-strip>div{border-right:0;border-bottom:1px solid var(--line)}.signal-strip>div:last-child{border-bottom:0}.appliance-grid{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:1fr}.area-section{grid-template-columns:1fr}.area-map{height:320px}footer{grid-template-columns:1fr;text-align:center}footer>div:first-child,.footer-links{justify-content:center}}@media(max-width:560px){.topbar{padding:0 16px}.hero{padding-left:16px;padding-right:16px}.hero h1{font-size:2.7rem;line-height:1.02}.chat-head{padding:20px 18px 16px}.chat-messages{height:300px;padding:18px}.quick-actions{padding-left:18px;padding-right:18px}.contact-fallback-actions{grid-template-columns:1fr}.section{padding-left:16px;padding-right:16px}.appliance-grid{grid-template-columns:1fr}.area-map{height:260px}.ring-a{width:290px;height:290px}.ring-b{width:175px;height:175px}}