/* 文件职责：官网排版、配色及响应式布局。跨文件共享量：index.html 语义类名。函数职责：无函数，样式按组件分组。输入输出：不同视口映射为自适应布局。算法公式：内容宽度=min(视口减两侧留白,1200px)。边界/并发：320px 起无固定底栏，缩放及减弱动态偏好均可访问。 */
:root{--ink:#172321;--muted:#606a67;--accent:#fb693b;--line:#dce1dd;--paper:#f3f5f2;--max:1200px;font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;color:var(--ink);background:#fff;font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:24px}body{margin:0}a{color:inherit;text-decoration:none}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible{outline:3px solid var(--accent);outline-offset:5px}img{display:block;width:100%;height:auto}h1,h2,h3,p,figure{margin:0}h2{font-size:clamp(28px,3vw,40px);font-weight:600;line-height:1.4;letter-spacing:-.03em}p{line-height:1.8}a,span,p{overflow-wrap:break-word}.section-wrap{width:min(calc(100% - 80px),var(--max));margin-inline:auto}.skip-link{position:fixed;top:12px;left:12px;z-index:20;background:white;padding:12px;transform:translateY(-180%)}.skip-link:focus{transform:none}.site-header{background:#fff}.header-inner{width:min(calc(100% - 80px),1360px);min-height:92px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;gap:13px;align-items:center}.brand-symbol{font:bold 43px/1 Arial;letter-spacing:-8px;padding-right:8px;color:var(--ink)}.brand-symbol span{color:#f06435}.brand-name{font-size:23px;line-height:1.15;font-weight:700;letter-spacing:2px}.brand-name>span{display:block;font:9px/1.8 Arial;letter-spacing:2px}.header-inner nav{display:flex;gap:42px;font-size:15px;font-weight:600}.header-inner nav a{padding:33px 0}.header-inner nav .nav-current{border-bottom:3px solid var(--accent)}.header-contact{font-size:15px;padding:12px 18px;border:1px solid var(--line);display:flex;gap:25px}.header-contact:hover{border-color:var(--ink)}.hero{background:var(--ink);color:#fff;overflow:hidden}.hero-inner{max-width:1440px;margin:auto;min-height:584px;display:grid;grid-template-columns:.9fr 1.1fr;align-items:center}.hero-copy{padding:66px 36px 64px max(40px,calc((100vw - 1200px)/2));position:relative;z-index:1}.eyebrow{font-family:Arial,"Microsoft YaHei",sans-serif;letter-spacing:2.2px;font-size:12px;font-weight:600;color:#bbcac1;margin-bottom:25px}.eyebrow.dark{color:#59665e}.hero h1{font-size:clamp(48px,5.5vw,76px);font-weight:600;line-height:1.2;letter-spacing:-.05em;margin-bottom:28px}.hero-intro{font-size:20px;letter-spacing:3px;margin-bottom:12px}.hero-description{color:#c0c9c3;font-size:16px;margin-bottom:32px}.button{padding:16px 22px;display:inline-flex;align-items:center;justify-content:space-between;gap:45px;font-size:15px;font-weight:600;min-height:52px}.button-primary{background:var(--accent);color:#18201d}.button-primary:hover{background:#ff825b}.hero-visual{align-self:stretch;min-width:0;display:flex;flex-direction:column;justify-content:center;background:#e9eeeb;margin:36px 40px 36px 0;position:relative}.hero-visual:before{content:"";position:absolute;left:-20px;top:36px;width:40px;height:3px;background:var(--accent)}.hero-visual img{object-fit:contain;padding:35px;width:100%;height:440px;mix-blend-mode:multiply}.hero-visual figcaption{display:flex;justify-content:space-between;gap:20px;padding:24px 30px;color:#445048;font-size:12px;letter-spacing:1px;border-top:1px solid #cad3cc;margin:0 25px}.hero-bottom{border-top:1px solid #35423b;display:flex;justify-content:space-between;gap:20px;max-width:1360px;margin:auto;padding:21px 40px;color:#bdc7bf;font-size:13px}.hero-bottom a{display:flex;gap:32px}.products{padding-block:95px 75px;scroll-margin-top:26px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:43px}.section-heading .eyebrow{margin-bottom:14px}.section-heading>p{color:var(--muted);font-size:16px}.product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}.product-card{min-width:0;border-bottom:1px solid var(--line);padding-bottom:22px}.product-image{position:relative;aspect-ratio:1.17;background:var(--paper);overflow:hidden}.product-image img{height:100%;object-fit:contain;padding:25px 17px;mix-blend-mode:multiply;transition:transform .35s}.product-card:hover img{transform:scale(1.045)}.product-number{position:absolute;top:13px;left:15px;color:#6a776f;font:12px Arial;z-index:1}.product-copy{padding-top:23px}.product-label{font:11px Arial;letter-spacing:1.35px;color:#67746b}.product-copy h3{font-size:22px;margin:9px 0 12px;line-height:1.4}.product-copy p{font-size:15px;color:var(--muted);min-height:81px}.product-copy a{font-size:14px;font-weight:600;display:flex;align-items:center;justify-content:space-between;margin-top:22px;padding-block:8px}.product-copy a span{color:#d4532e;font-size:21px}.product-note{font-size:13px;color:#747d77;margin-top:28px}.selection{background:#1c2a24;color:white;padding-block:72px}.selection-inner{display:grid;grid-template-columns:1fr 1.12fr;gap:90px}.selection-intro .eyebrow{color:#9eafa4;margin-bottom:20px}.selection-intro h2{font-size:37px;margin-bottom:22px}.selection-intro>p:not(.eyebrow){color:#bfcac1;font-size:16px}.text-link{margin-top:30px;display:inline-flex;gap:70px;border-bottom:1px solid #687a6d;padding-bottom:12px;font-size:15px}.text-link span{color:var(--accent)}.selection-list{list-style:none;margin:0;padding:0}.selection-list li{display:flex;gap:25px;border-top:1px solid #47564b;padding:23px 0}.selection-list li:last-child{padding-bottom:0}.selection-list li>span{font:12px Arial;color:#eb855b;padding-top:6px}.selection-list h3{font-size:18px;font-weight:500;margin-bottom:8px}.selection-list p{font-size:14px;color:#c2ccc5;line-height:1.7}.about{display:grid;grid-template-columns:1fr 1fr;gap:90px;padding-block:93px}.about .eyebrow{margin-bottom:18px}.about h2{font-size:34px}.about-copy h3{font-size:20px;margin:8px 0 19px}.about-copy p{color:var(--muted);font-size:16px}.about-location{border-top:1px solid var(--line);margin-top:29px;padding-top:17px;display:flex;justify-content:space-between;font-size:13px;color:#5d6d62}.about-location span:last-child{letter-spacing:2px;font:12px Arial}.contact{background:#f0f2ee;border-top:1px solid var(--line)}.contact-inner{display:grid;grid-template-columns:1fr 1fr;gap:90px;padding-block:58px}.contact .eyebrow{margin-bottom:15px}.contact h2{font-size:34px}.contact h2+p{color:var(--muted);margin-top:15px;font-size:15px}.contact-details{border-left:1px solid #ccd4cc;padding-left:44px;align-self:center}.contact-company{font-size:16px;font-weight:600;margin-bottom:14px}.contact-details p[data-contact-placeholder]{font-size:14px;color:var(--muted)}.contact-domain{display:flex;justify-content:space-between;gap:30px;font-size:24px;max-width:340px;margin-top:13px;font-family:Arial}.contact-domain span{color:#ca532f}.site-footer{background:#fff}.footer-inner{display:flex;gap:24px;align-items:center;justify-content:space-between;min-height:100px;padding-block:28px}.footer-brand{font-size:22px;font-weight:700;white-space:nowrap}.footer-brand span{font:10px Arial;letter-spacing:1.5px;margin-left:8px;color:#637267}.footer-inner p,.footer-inner>a:last-child{font-size:12px;color:#657068}.footer-inner>a:last-child{white-space:nowrap}
@media(min-width:1500px){.hero-copy{padding-left:120px}}@media(max-width:1050px){.header-inner nav{gap:24px}.hero-inner{grid-template-columns:1fr 1fr}.hero-copy{padding-left:40px}.hero-visual{margin-right:30px}.hero-visual img{height:400px;padding:22px}.hero-visual figcaption{padding:20px 0;margin:0 20px;font-size:11px}.product-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px 24px}.product-image{aspect-ratio:1.5}.product-copy p{min-height:0}.selection-inner,.about,.contact-inner{gap:45px}}@media(max-width:700px){.section-wrap,.header-inner{width:calc(100% - 40px)}.header-inner{min-height:78px;gap:10px;flex-wrap:wrap;padding-top:15px}.brand-symbol{font-size:34px}.brand-name{font-size:20px}.header-contact{margin-left:auto;font-size:13px;padding:10px 13px;gap:16px}.header-inner nav{order:3;width:100%;justify-content:space-between;font-size:14px;gap:16px}.header-inner nav a{padding:16px 0 13px}.hero-inner{grid-template-columns:1fr;min-height:0}.hero-copy{padding:45px 24px 38px}.hero h1{font-size:57px;margin-bottom:20px}.hero .eyebrow{font-size:11px;margin-bottom:22px}.hero-intro{font-size:19px;margin-bottom:10px}.hero-description{font-size:15px;margin-bottom:25px}.hero-visual{margin:0 20px 24px;min-height:260px}.hero-visual:before{left:18px;top:-1px;width:36px}.hero-visual img{height:260px;padding:25px}.hero-visual figcaption{font-size:11px;margin:0 18px;padding:15px 0}.hero-bottom{padding:19px 20px;font-size:11px;gap:18px}.hero-bottom a{gap:10px;white-space:nowrap}.products{padding-block:55px 45px}.section-heading{display:block;margin-bottom:29px}.section-heading>p{margin-top:17px;font-size:14px}.section-heading>p br{display:none}.section-heading h2{font-size:28px}.product-grid{gap:30px 17px}.product-image{aspect-ratio:1.03}.product-image img{padding:19px 10px}.product-number{top:10px;left:10px;font-size:11px}.product-copy{padding-top:16px}.product-label{font-size:9px;letter-spacing:.6px}.product-copy h3{font-size:19px;margin-top:8px}.product-copy p{font-size:14px;line-height:1.8}.product-copy a{font-size:13px;margin-top:12px;gap:6px}.product-note{font-size:12px;line-height:1.8}.selection{padding-block:47px}.selection-inner,.about,.contact-inner{grid-template-columns:1fr;gap:32px}.selection-intro h2{font-size:30px}.selection-intro>p:not(.eyebrow){font-size:15px}.selection-list li{padding:20px 0;gap:18px}.selection-list h3{font-size:18px}.selection-list p{font-size:14px}.about{padding-block:52px}.about h2,.contact h2{font-size:29px}.about-copy h3{font-size:18px}.about-copy p{font-size:15px}.contact-inner{padding-block:45px;gap:30px}.contact-details{border-left:0;border-top:1px solid #ccd4cc;padding:24px 0 0}.contact-domain{font-size:25px}.footer-inner{flex-wrap:wrap;padding-block:26px;gap:17px}.footer-inner p{order:3;width:100%;font-size:11px}.footer-inner>a:last-child{margin-left:auto}.eyebrow{font-size:11px;letter-spacing:1.7px}}@media(max-width:360px){.hero h1{font-size:49px}.hero-bottom{flex-direction:column}.product-grid{grid-template-columns:1fr}.product-image{aspect-ratio:1.5}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}
/* 文件职责：公开联系方式排版。跨文件共享量：index.html 的 contact-method 类名。函数职责：无函数，约束电话及邮箱宽度。输入输出：电话和邮箱文本。算法公式：无。边界/并发：窄屏自然换行，不产生固定底部遮挡。 */
.contact-method{display:block;width:fit-content;max-width:100%;padding-block:8px;font-family:Arial,"Microsoft YaHei",sans-serif}.contact-method>span{display:block;font-size:12px;color:#606a67;margin-bottom:6px;font-family:"Microsoft YaHei",sans-serif}.contact-phone{font-size:29px;letter-spacing:.4px}.contact-email{font-size:18px}a.contact-method:hover{color:#b44725}.contact-website{font-family:Arial,sans-serif;font-size:13px;color:#667369;margin-top:14px;letter-spacing:1px}@media(max-width:700px){.contact-phone{font-size:27px}.contact-email{font-size:18px}}
/* 文件职责：暖风机系列及系列导航布局。跨文件共享量：index.html 的 series-nav、fan-* 类名。函数职责：无函数，使用栅格适配图片与介绍。输入输出：宽屏双栏，窄屏单栏。算法公式：双栏比例为1.15:1，间距随视口缩减。边界/并发：图片按完整比例展示，长文字自然换行，页脚仍处于正常文档流。 */
.series-nav{display:flex;gap:32px;border-bottom:1px solid var(--line);margin-bottom:42px;font-size:16px}.series-nav a{padding:0 0 16px;display:inline-flex;gap:35px}.series-nav .series-active{border-bottom:3px solid var(--accent);font-weight:600}.series-nav a:hover{color:#b44725}.fan-series{padding-bottom:86px;scroll-margin-top:35px}.fan-layout{display:grid;grid-template-columns:1.15fr 1fr;gap:58px;align-items:center;border-top:1px solid var(--line);padding-top:72px}.fan-visual{background:#f01e14}.fan-visual img{width:100%;height:auto;object-fit:contain}.fan-visual figcaption{background:#172321;color:#d2ddd4;font-size:13px;padding:17px 22px;letter-spacing:1px}.fan-copy .eyebrow{margin-bottom:16px}.fan-copy h2{font-size:38px}.fan-lead{font-size:21px;margin-top:11px}.fan-description{font-size:16px;color:var(--muted);margin-top:20px;max-width:420px}.fan-features{margin:26px 0}.fan-features div{display:grid;grid-template-columns:95px 1fr;gap:14px;border-top:1px solid var(--line);padding:12px 0;font-size:14px}.fan-features dt{font-weight:600}.fan-features dd{margin:0;color:var(--muted);line-height:1.7}.fan-button{background:var(--ink);color:white;padding:14px 20px;gap:35px}.fan-button:hover{background:#30463a}.fan-button span{color:#ff9e7c}.fan-note{font-size:12px;color:#747d77;margin-top:17px}@media(max-width:1050px){.fan-layout{gap:32px}.fan-copy h2{font-size:32px}.fan-description{font-size:15px}.fan-features div{grid-template-columns:80px 1fr;gap:8px}}@media(max-width:700px){.series-nav{gap:28px;margin-bottom:32px;font-size:14px}.series-nav a{gap:20px;padding-bottom:13px}.fan-series{padding-bottom:47px}.fan-layout{grid-template-columns:1fr;gap:29px;padding-top:36px}.fan-visual figcaption{font-size:12px;padding:15px 17px}.fan-copy h2{font-size:29px}.fan-lead{font-size:19px}.fan-description{font-size:15px;margin-top:15px}.fan-features{margin-block:22px}.fan-features div{grid-template-columns:88px 1fr;gap:12px;font-size:14px}.fan-note{font-size:12px}}
/* 文件职责：新增产品实拍与型号区域的响应式排版。跨文件共享量：index.html 的 model-* 类名和 series-nav 导航。函数职责：无函数，宽屏三栏、窄屏单栏展示完整照片。输入输出：不同视口宽度下的图片和型号排版。算法公式：宽屏使用repeat(3,minmax(0,1fr))均分内容区，照片容器宽高比4:3。边界/并发：照片object-fit:contain不裁切；型号不拆字，系列导航可换行，不遮挡页脚。 */
.model-series{padding-bottom:84px;scroll-margin-top:30px}.model-series>.section-heading{padding-top:45px;border-top:1px solid var(--line);margin-bottom:34px}.model-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:25px}.model-card{min-width:0;border-bottom:1px solid var(--line)}.model-image{aspect-ratio:4/3;background:var(--paper);display:flex;align-items:center;overflow:hidden}.model-image img{height:100%;width:100%;object-fit:contain}.model-caption{padding:22px 0 25px}.model-caption h3{font-size:22px;line-height:1.5;margin-top:9px;display:flex;align-items:center;flex-wrap:wrap;gap:12px}.model-caption .model-code{font-family:Arial,sans-serif;font-size:27px;font-weight:600;letter-spacing:.6px}.model-variant{font-size:13px;font-weight:400;color:var(--muted);border:1px solid var(--line);padding:3px 9px}.series-nav{flex-wrap:wrap;column-gap:32px;row-gap:14px}.hero-intro{letter-spacing:1.5px}@media(max-width:850px){.model-grid{gap:18px}.model-caption h3{font-size:20px}.model-caption .model-code{font-size:24px}}@media(max-width:700px){.series-nav{gap:14px 23px}.series-nav a{gap:12px}.model-series{padding-bottom:49px}.model-series>.section-heading{padding-top:30px;margin-bottom:25px}.model-grid{grid-template-columns:1fr;gap:29px}.model-image{aspect-ratio:4/3}.model-caption{padding:18px 0 21px}.model-caption h3{font-size:22px}.model-caption .model-code{font-size:27px}.hero-intro{font-size:17px;letter-spacing:.8px}}