:root{--wine:#98191d;--gold:#b88b48;--ink:#1d1b1b;--muted:#5f5955;--cream:#faf8f4;--line:#eee7df;--container:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:96px}section[id]{scroll-margin-top:96px}body{margin:0;color:var(--ink);background:#fff;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;font-size:14px}img{display:block;max-width:100%}a{text-decoration:none;color:inherit}.container{width:min(calc(100% - 80px),var(--container));margin:auto}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.site-header{height:80px;background:#fffdfb;border-bottom:1px solid #eee7de;position:sticky;top:0;z-index:10}.header-inner{height:80px;display:flex;align-items:center}.brand img{width:250px;height:auto;max-height:72px}.main-nav{margin-left:auto;display:flex;align-items:center;gap:30px;font-weight:600;font-size:12px}.main-nav a{white-space:nowrap}.main-nav a:first-child{color:var(--wine);position:relative}.main-nav a:first-child:before{content:"";position:absolute;width:10px;height:2px;background:var(--wine);top:-15px;left:50%;transform:translateX(-50%)}.nav-cta{background:var(--wine);color:#fff;padding:10px 21px;border-radius:2px}.menu-toggle{display:none;border:0;background:transparent;padding:8px}.menu-toggle span:not(.sr-only){display:block;width:25px;height:2px;background:#252525;margin:5px}
.hero{height:365px;position:relative;overflow:hidden;background:#f9f6f1}.hero-copy{position:relative;z-index:2;padding-top:48px}.hero h1{margin:0;font-size:32px;line-height:1.18;letter-spacing:-.03em}.hero h1 span,.hero h1 strong{display:block}.hero h1 strong{margin-top:5px;color:var(--wine)}.hero-copy>p{margin:17px 0 0;line-height:1.75;color:#302c29;font-size:13px}.hero-actions{display:flex;gap:15px;margin-top:19px}.button{font-weight:700;padding:9px 22px;border-radius:2px;font-size:13px}.primary{background:var(--wine);color:#fff}.secondary{border:1px solid var(--wine);color:var(--wine);background:#fff}.hero small{display:block;margin-top:13px;color:#665f58;font-size:10px}.hero-media{position:absolute;inset:0 0 0 46%;z-index:1}.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center}.hero-media:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#faf8f4 0%,rgba(250,248,244,.92) 10%,rgba(250,248,244,0) 43%)}
.section{padding:25px 0}.heading{text-align:center;margin:0 auto 17px}.heading h2{font-size:21px;line-height:1.25;margin:0;font-weight:800}.heading p{font-size:12px;color:var(--muted);margin:6px 0 0}.scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.scenario-grid article{height:157px;position:relative;overflow:hidden;border-radius:3px;color:#fff;background:#222}.scenario-grid img{width:100%;height:100%;object-fit:cover}.scenario-grid article:after{content:"";position:absolute;inset:45% 0 0;background:linear-gradient(transparent,rgba(0,0,0,.88))}.scenario-grid div{position:absolute;z-index:1;bottom:10px;left:13px}.scenario-grid h3{margin:0;font-size:16px}.scenario-grid p{margin:3px 0 0;font-size:11px;line-height:1.35}
.service{padding-top:22px}.service-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(6,1fr)}.service-steps li{min-width:0;text-align:center;position:relative}.service-steps li:not(:last-child):after{content:"";height:1px;background:#e9e0d8;position:absolute;top:19px;left:57%;right:-43%;z-index:-1}.service-steps b{display:grid;place-items:center;width:39px;height:39px;border-radius:50%;margin:0 auto 8px;background:#fff;border:1px solid var(--line);color:var(--wine);font-size:19px}.service-steps strong{display:block;font-size:12px}.service-steps span{display:block;margin-top:4px;color:var(--muted);font-size:10px;line-height:1.4}
.packages{background:#fcfbf9}.package-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.package-grid article{height:116px;border:1px solid var(--line);border-radius:4px;text-align:center;position:relative;overflow:hidden;padding:9px;background:#fff}.package-grid h3{font-size:13px;margin:0}.package-grid p{font-size:10px;color:var(--muted);margin:3px 0}.package-grid img{height:72px;width:100%;object-fit:cover;object-position:center bottom}
.cases{padding-top:25px}.case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}.case-grid article{height:92px;overflow:hidden;position:relative;border-radius:3px;background:var(--wine);color:#fff}.case-grid img{width:100%;height:100%;object-fit:cover}.case-grid article:after{content:"";position:absolute;inset:48% 0 0;background:linear-gradient(transparent,rgba(117,0,0,.92))}.case-grid b,.case-grid span{position:absolute;z-index:1;left:10px}.case-grid b{bottom:22px;font-size:13px}.case-grid span{bottom:8px;font-size:10px}
.brands{background:#fcfbf9}.brand-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px}.brand-card{min-width:0;height:80px;padding:8px;display:grid;place-items:center;border:0;border-radius:0;background:transparent;box-shadow:none}.brand-card img{display:block;max-width:min(75%,150px);max-height:52px;width:auto;height:auto;object-fit:contain}.brand-name{max-width:100%;text-align:center;color:#37322f;font-size:14px;font-weight:600;line-height:1.25;overflow-wrap:anywhere}.faq{background:#fcfbf9}.faq-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.faq details{min-height:45px;border:1px solid var(--line);border-radius:3px;padding:11px;font-size:11px}.faq summary{cursor:pointer;font-weight:600}.faq details p{color:var(--muted);font-size:10px;line-height:1.5}.faq summary::marker{color:var(--wine)}
.contact{background:linear-gradient(105deg,#8e080d,#b20d0f 60%,#781014);color:#fff;padding:25px 0}.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:35px}.contact h2{font-size:23px;line-height:1.2;margin:0}.contact p{font-size:12px;line-height:1.55}.contact small{font-size:10px}.contact h3{margin:2px 0 10px;font-size:22px}.qr{width:91px;height:91px;background:#fff;color:#333;display:grid;place-items:center;text-align:center;margin:auto;font-size:12px}.contact-qr{display:flex;flex-direction:column;align-items:center;gap:9px}.contact-qr small{font-size:12px}footer{background:#282828;color:#dedede;padding:0;font-size:9px;line-height:1.4}
@media(max-width:780px){.container{width:min(calc(100% - 32px),var(--container))}.site-header,.header-inner{height:70px}.brand img{width:175px;height:auto;max-height:52px}.menu-toggle{display:block;margin-left:auto}.main-nav{display:none;position:absolute;left:16px;right:16px;top:70px;padding:12px;background:#fff;box-shadow:0 12px 35px #0002;flex-direction:column;gap:0}.main-nav.is-open{display:flex}.main-nav a{padding:10px;width:100%}.main-nav a:first-child:before{display:none}.nav-cta{text-align:center}.hero{height:auto;padding-bottom:25px}.hero-copy{padding-top:43px}.hero h1{font-size:34px}.hero-copy>p{font-size:14px}.hero-copy br{display:none}.hero-actions{flex-direction:column}.button{text-align:center;width:100%;padding:13px}.hero-media{position:relative;inset:auto;width:calc(100% - 32px);height:320px;margin:25px auto 0}.hero-media:after{display:none}.section{padding:32px 0}.heading h2{font-size:20px}.scenario-grid,.package-grid,.case-grid{grid-template-columns:1fr 1fr;gap:10px}.scenario-grid article{height:145px}.service-steps{grid-template-columns:repeat(2,1fr);gap:20px 0}.service-steps li:after{display:none}.faq-grid{grid-template-columns:1fr}.contact-grid{grid-template-columns:1fr;text-align:center;gap:18px}.contact h2{font-size:25px}.contact h3{font-size:20px}.cases .heading{margin-bottom:17px}}
/* Final reference proportion lock: preserve content while restoring vertical rhythm. */
@media (min-width:781px){
  .section{padding:64px 0}.heading{margin-bottom:32px}.scenarios{padding-top:64px}
  .scenario-grid{gap:22px}.scenario-grid article{height:auto;aspect-ratio:4 / 3}.scenario-grid h3{font-size:18px}.scenario-grid p{font-size:13px}
  .service{padding:64px 0 68px}.service-steps{padding-top:8px}.service-steps li{min-height:166px;padding:0 12px 12px}.service-steps b{width:58px;height:58px;margin-bottom:16px;font-size:21px}.service-steps strong{font-size:15px}.service-steps span{font-size:13px;line-height:1.65}.service-steps li:not(:last-child):after{top:29px}
  .packages{padding:64px 0 68px}.package-grid{gap:22px}.package-grid article{height:286px;padding:16px}.package-grid img{height:auto;aspect-ratio:4 / 3;margin-top:12px;object-fit:cover}.package-grid h3{margin-top:9px;font-size:16px}.package-grid p{font-size:13px}
  .cases{padding:48px 0 68px}.case-grid{gap:14px}.case-grid article{height:auto;aspect-ratio:5 / 3}.case-grid article:after{inset:auto 0 0;height:66px}.case-grid b{bottom:35px;font-size:16px}.case-grid span{bottom:14px;font-size:12px}
  .brands{padding:64px 0 68px}.brand-grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}.brand-card{height:80px;padding:8px}.brand-name{font-size:14px}
  .faq{padding:64px 0 68px}.faq-grid{gap:14px}.faq details{min-height:78px;padding:17px 20px}.faq summary{min-height:40px;display:flex;align-items:center;font-size:15px}.faq details p{font-size:13px;line-height:1.6}
  .contact{min-height:210px;padding:0}.contact-grid{min-height:210px;grid-template-columns:1.1fr .9fr;gap:0;align-items:center}.contact h2{max-width:370px;font-size:30px}.contact p{max-width:380px;font-size:14px;line-height:1.75}.contact .qr{width:128px;height:128px;padding:10px}.contact-qr{gap:10px}.contact-qr small{font-size:12px}footer{min-height:50px;padding:0;display:flex;align-items:center}footer .container{white-space:nowrap}
}
@media (max-width:780px){
  .section{padding:48px 0}.heading{margin-bottom:30px}.heading h2{font-size:24px}.heading p{font-size:13px;line-height:1.65}
  .scenario-grid,.package-grid,.case-grid{gap:12px}.scenario-grid article{height:auto;aspect-ratio:4 / 3}.scenario-grid h3{font-size:15px}.scenario-grid p{font-size:12px;line-height:1.45}
  .service{padding:48px 0}.service-steps{gap:26px 14px}.service-steps li{min-height:164px;padding:0 6px 8px}.service-steps b{width:54px;height:54px;margin-bottom:14px;font-size:19px}.service-steps strong{font-size:15px}.service-steps span{font-size:13px;line-height:1.55}
  .packages{padding:48px 0}.package-grid article{height:250px;padding:12px}.package-grid img{height:auto;aspect-ratio:4 / 3;margin-top:10px;object-fit:cover}.package-grid h3{font-size:14px;margin-top:8px}.package-grid p{font-size:12px;line-height:1.45}
  .cases{padding:36px 0 48px}.case-grid article{height:auto;aspect-ratio:5 / 3}.case-grid article:after{inset:auto 0 0;height:62px}.case-grid b{bottom:34px;font-size:14px}.case-grid span{bottom:13px;font-size:11px}
  .brands{padding:36px 0 48px}.brand-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px 10px}.brand-card{height:72px;padding:6px}.brand-card img{max-width:min(75%,100px);max-height:40px}.brand-name{font-size:12px;line-height:1.3}
  .faq{padding:36px 0 48px}.faq-grid{gap:12px}.faq details{min-height:72px;padding:16px}.faq summary{min-height:38px;display:flex;align-items:center;font-size:14px}.faq details p{font-size:13px;line-height:1.55}
  .contact{min-height:356px;padding:0}.contact-grid{min-height:356px;grid-template-columns:1fr;gap:24px;text-align:center}.contact h2{font-size:27px}.contact p{font-size:14px;line-height:1.7}.contact .qr{width:128px;height:128px;padding:10px}.contact-qr{gap:9px}.contact-qr small{font-size:12px}footer{min-height:0;padding:9px 0;display:block;font-size:9px;line-height:1.45}footer .container{white-space:normal}
}
@media (max-width:780px){
  .service{padding:30px 0}
  .service .heading{margin-bottom:16px}
  .service .heading h2{font-size:22px;line-height:1.2}
  .service-steps{gap:14px}
  .service-steps li{min-height:112px;padding:0 4px 4px}
  .service-steps b{width:50px;height:50px;margin-bottom:8px;font-size:18px}
  .service-steps strong{font-size:14px}
  .service-steps span{margin-top:2px;font-size:12px;line-height:1.42}
  .packages{padding:36px 0 48px}
}
@media (max-width:780px){
  .package-grid{column-gap:12px;row-gap:10px}
  .package-grid article{height:170px}
}
@media (max-width:780px){
  .cases .case-title-ending{white-space:nowrap}
}
@media (max-width:780px){
  .mobile-module-order{display:flex;flex-direction:column}
  .mobile-module-order .cases{order:1}
  .mobile-module-order .packages{order:2}
}

/* Brand wall visual normalization: transparent cards remain absent. */
.brands .brand-grid{column-gap:16px;row-gap:13px}
.brands .brand-card{width:160px;height:60px;margin:0 auto;padding:7px;display:grid;place-items:center}
.brands .brand-card img{max-width:145px;max-height:46px;width:auto;height:auto;object-fit:contain}
.brands .brand-name{display:block;white-space:nowrap;color:#37322f;font-size:18px;font-weight:600;line-height:1;text-align:center}

@media(max-width:780px){
  .brands .brand-grid{column-gap:10px;row-gap:8px}
  .brands .brand-card{width:105px;height:48px;padding:7px}
  .brands .brand-card img{max-width:95px;max-height:34px;width:auto;height:auto;object-fit:contain}
  .brands .brand-name{font-size:13px;line-height:1;white-space:nowrap}
}

.brands .brand-card img[src$="midea.png"]{max-height:40px}
.brands .brand-card img[src$="vatti.png"]{max-width:128px}
@media(max-width:780px){
  .brands .brand-card img[src$="midea.png"]{max-height:30px}
  .brands .brand-card img[src$="vatti.png"]{max-width:84px}
}

.contact .qr{width:180px;height:180px;padding:0;display:block;object-fit:contain}
@media(max-width:780px){
  .contact .qr{width:160px;height:160px;padding:0;display:block;object-fit:contain}
}