:root{--bg:#fff;--surface:#f5f7f9;--panel:#fff;--text:#101d2b;--muted:#627081;--line:#dfe5eb;--blue:#086ad8;--blue2:#eaf3ff;--orange:#ff6a18;--green:#18965d;--header:rgba(255,255,255,.94);--shadow:0 12px 38px rgba(17,36,54,.08);--font:Inter,"PingFang SC","Microsoft YaHei",sans-serif;color-scheme:light}
.bottom-nav button{border:0;background:transparent;color:inherit;font:inherit}.toast{pointer-events:none}@media(max-width:720px){.bottom-nav button{display:grid;place-items:center;color:var(--muted);font-size:11px;touch-action:manipulation;-webkit-tap-highlight-color:transparent}}
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*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:78px}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.65;-webkit-font-smoothing:antialiased}body.lock{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit;color:inherit}button{cursor:pointer}img,video{display:block;width:100%}.shell{width:min(1180px,calc(100% - 48px));margin:auto}::view-transition-old(root),::view-transition-new(root){animation:none;mix-blend-mode:normal}::view-transition-new(root){z-index:9999}::view-transition-old(root){z-index:1}
.site-header{position:sticky;z-index:90;top:0;background:var(--header);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.header-inner{height:72px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:11px}.brand>span:last-child{display:grid}.brand strong{font-size:17px;line-height:1.1}.brand small{margin-top:4px;color:var(--muted);font:9px ui-monospace,Consolas,monospace;letter-spacing:.12em}.brand-mark{position:relative;width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--blue);font:800 11px ui-monospace,Consolas,monospace}.brand-mark:after{content:"";position:absolute;top:-1px;right:-1px;width:7px;height:7px;background:var(--orange)}.desktop-nav{display:flex;gap:24px;margin-left:auto}.desktop-nav a{color:var(--muted);font-size:14px;font-weight:600}.desktop-nav a:hover{color:var(--blue)}.theme-toggle,.menu-button{height:40px;padding:0 13px;border:1px solid var(--line);background:var(--panel);font-size:12px;font-weight:700}.theme-toggle{position:relative;min-width:50px;overflow:hidden;transition:border-color .2s,color .2s,transform .2s}.theme-toggle:hover,.menu-button:hover{border-color:var(--blue);color:var(--blue)}.theme-toggle.switching{animation:theme-toggle-pop .62s cubic-bezier(.2,.9,.25,1)}@keyframes theme-toggle-pop{0%{transform:scale(1)}36%{transform:scale(.82) rotate(-4deg)}70%{transform:scale(1.1) rotate(2deg)}100%{transform:scale(1) rotate(0)}}.nav-contact,.primary-button{display:inline-flex;align-items:center;justify-content:center;background:var(--blue);color:#fff;font-weight:700}.nav-contact{height:42px;padding:0 17px;font-size:13px}.menu-button,.mobile-nav{display:none}.mobile-nav{padding:8px 20px 18px;background:var(--panel);border-bottom:1px solid var(--line)}.mobile-nav a{display:block;padding:12px 4px;border-bottom:1px solid var(--line);font-size:14px}html.theme-fallback body,html.theme-fallback .site-header,html.theme-fallback .catalog-card,html.theme-fallback .resource-item,html.theme-fallback .contact-card,html.theme-fallback button{transition:background-color .42s ease,color .42s ease,border-color .42s ease,box-shadow .42s ease}
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.reviews{overflow:hidden;background:var(--surface);border-block:1px solid var(--line)}.review-wall{display:grid;gap:12px;overflow:hidden}.review-lane{overflow:hidden}.review-flow{display:flex;gap:14px;width:max-content;animation:reviews-left 46s linear infinite}.lane-1 .review-flow{animation-name:reviews-right;animation-duration:52s;transform:translateX(-50%)}.lane-2 .review-flow{animation-duration:58s}.review-lane:hover .review-flow{animation-play-state:paused}.review-card{width:360px;padding:0;display:grid;grid-template-columns:145px 1fr;border:1px solid var(--line);background:var(--panel);color:inherit;text-align:left;overflow:hidden}.review-media{position:relative;height:132px;background:#0b1118;overflow:hidden}.review-media video{height:100%;object-fit:cover}.review-media i{position:absolute;left:8px;bottom:8px;padding:3px 6px;background:rgba(5,10,15,.78);color:#fff;font-size:9px;font-style:normal}.review-copy{display:grid;align-content:center;padding:14px}.review-copy small{color:var(--blue);font-size:10px}.review-copy b{margin:6px 0;font-size:13px;font-weight:600}.review-copy em{color:var(--muted);font-size:10px;font-style:normal}@keyframes reviews-left{to{transform:translateX(-50%)}}@keyframes reviews-right{to{transform:translateX(0)}}
.features{background:var(--bg)}.compat-rule{display:grid;grid-template-columns:repeat(3,1fr);margin-bottom:28px;border:1px solid var(--line)}.compat-rule>div{display:grid;grid-template-columns:38px 1fr;gap:10px;padding:18px;border-right:1px solid var(--line)}.compat-rule>div:last-child{border:0}.compat-rule b{color:var(--blue);font:700 11px ui-monospace,Consolas,monospace}.compat-rule span{display:grid}.compat-rule strong{font-size:14px}.compat-rule small{margin-top:3px;color:var(--muted);font-size:11px}.feature-switch{display:flex;width:max-content;margin-bottom:34px;border:1px solid var(--line)}.feature-switch button{padding:12px 20px;border:0;border-right:1px solid var(--line);background:var(--panel);color:var(--muted);font-size:12px}.feature-switch button:last-child{border:0}.feature-switch button.active{background:var(--blue);color:#fff}.capability-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:64px}.capability-copy>span{color:var(--blue);font:10px ui-monospace,Consolas,monospace}.capability-copy h3{margin:17px 0 12px;font-size:30px;line-height:1.25}.capability-copy>p{color:var(--muted);font-size:14px}.cap-note{margin-top:26px;padding:17px;border-left:3px solid var(--orange);background:var(--surface)}.cap-note b{font-size:13px}.cap-note p{margin:4px 0 0;color:var(--muted);font-size:12px}.capability-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-left:1px solid var(--line)}.cap-item{min-height:118px;padding:18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.cap-item span{color:var(--blue);font:10px ui-monospace,Consolas,monospace}.cap-item h4{margin:14px 0 4px;font-size:15px}.cap-item p{margin:0;color:var(--muted);font-size:11px}
.tutorials{background:var(--bg);border-top:1px solid var(--line)}.resources{background:var(--surface);border-block:1px solid var(--line)}.resource-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:80px}.resource-intro p{color:var(--muted);font-size:14px}.safety-note,.tutorial-note{margin-top:24px;padding:14px;font-size:11px}.safety-note{border:1px solid rgba(255,106,24,.35);color:var(--orange)}.tutorial-note{border:1px solid rgba(8,106,216,.35);color:var(--blue)}.resource-tab-buttons,.tutorial-tab-buttons{display:flex;border-bottom:1px solid var(--line)}.resource-tab-buttons button,.tutorial-tab-buttons button{flex:1;padding:14px;border:0;background:transparent;color:var(--muted);font-size:13px}.resource-tab-buttons button.active,.tutorial-tab-buttons button.active{color:var(--blue);border-bottom:2px solid var(--blue)}.resource-item{display:grid;grid-template-columns:44px 1fr 72px;align-items:center;gap:14px;padding:17px 0;border-bottom:1px solid var(--line)}.file-type{width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line);color:var(--blue);font:10px ui-monospace,Consolas,monospace}.resource-item small{color:var(--muted);font-size:10px}.resource-item h3{margin:2px 0;font-size:15px}.resource-item p{margin:0;color:var(--muted);font-size:11px}.resource-item button{min-width:38px;height:38px;padding:0 9px;border:1px solid var(--line);background:transparent;color:var(--blue);font-size:11px}
.faq-layout{display:grid;grid-template-columns:.5fr 1fr;gap:90px}.faq-title p{color:var(--muted);font-size:13px}.faq-item{border-bottom:1px solid var(--line)}.faq-item:first-child{border-top:1px solid var(--line)}.faq-question{width:100%;display:grid;grid-template-columns:40px 1fr 28px;align-items:center;padding:18px 0;border:0;background:transparent;text-align:left}.faq-question span{color:var(--blue);font:11px ui-monospace,Consolas,monospace}.faq-question b{font-size:15px}.faq-question i:before{content:"+";color:var(--muted);font-size:20px;font-style:normal}.faq-item.open .faq-question i:before{content:"−"}.faq-answer{display:grid;grid-template-rows:0fr;transition:.25s}.faq-answer>p{overflow:hidden;margin:0;color:var(--muted);font-size:13px}.faq-item.open .faq-answer{grid-template-rows:1fr}.faq-item.open .faq-answer>p{padding:0 0 20px 40px}
.contact{padding-top:30px}.contact-card{display:grid;grid-template-columns:1fr 230px 300px;gap:30px;align-items:center;padding:38px 42px;border:1px solid var(--line);background:var(--surface)}.contact-copy h2{font-size:clamp(32px,3.8vw,48px)}.contact-copy p{color:var(--muted);font-size:13px}.wechat-order{display:flex;align-items:center;gap:14px}.wechat-qr{flex:0 0 100px;padding:6px;background:#fff}.wechat-qr img{aspect-ratio:1;object-fit:cover}.wechat-order>div:last-child{display:grid}.wechat-order strong{font-size:15px}.wechat-order small{color:var(--muted);font-size:11px}.wechat-contact{display:grid;padding:20px;border:1px solid var(--line);background:var(--panel);text-align:left}.wechat-contact small,.wechat-contact span{color:var(--muted);font-size:11px}.wechat-contact strong{font:750 23px ui-monospace,Consolas,monospace}.wechat-contact b{margin-top:11px;color:var(--blue);font-size:12px}footer{padding:28px 0 92px;border-top:1px solid var(--line)}footer>div{display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:11px}.bottom-nav{display:none}
dialog{width:min(760px,calc(100% - 28px));max-height:calc(100svh - 28px);padding:0;border:1px solid var(--line);background:var(--panel);color:var(--text);box-shadow:var(--shadow)}dialog::backdrop{background:rgba(1,5,9,.7);backdrop-filter:blur(5px)}.modal-card{position:relative;padding:36px}.modal-card>button{position:absolute;z-index:2;top:12px;right:12px;padding:8px 10px;border:1px solid var(--line);background:var(--panel);font-size:11px}.modal-product{display:grid;grid-template-columns:250px 1fr;gap:25px;align-items:center;margin-bottom:24px}.modal-product>img{height:190px;object-fit:contain;background:var(--surface)}.modal-head span,.review-modal-head>span{color:var(--blue);font:11px ui-monospace,Consolas,monospace}.modal-head h2,.review-modal-head h2{margin:5px 0 12px;font-size:30px}.modal-head p,.review-modal-head p{color:var(--muted);font-size:12px}.modal-video-button{margin-top:10px;padding:8px 10px;border:1px solid var(--line);background:transparent;color:var(--blue)}.modal-spec-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.modal-spec-grid div{display:grid;padding:14px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.modal-spec-grid small{color:var(--muted);font-size:10px}.modal-spec-grid b{font-size:13px}.modal-section{margin-top:22px}.modal-section h3{color:var(--blue);font-size:14px}.modal-section p{color:var(--muted);font-size:13px}.modal-tags{display:flex;gap:7px;flex-wrap:wrap}.modal-tags span{padding:5px 8px;border:1px solid var(--line);font-size:11px}.review-screenshot{max-height:60vh;margin-top:20px;object-fit:contain;background:var(--surface)}.review-modal-card>small{display:block;margin-top:10px;color:var(--muted);font-size:10px}.toast{position:fixed;z-index:200;left:50%;bottom:28px;padding:11px 17px;background:var(--text);color:var(--bg);font-size:12px;opacity:0;transform:translate(-50%,16px);transition:.2s}.toast.show{opacity:1;transform:translate(-50%,0)}
@media(max-width:1040px){.desktop-nav,.nav-contact{display:none}.theme-toggle{margin-left:auto}.menu-button{display:block}.mobile-nav.open{display:block}.hero-layout{grid-template-columns:1fr}.hero-copy{padding-right:0}.hero-visual{height:500px;margin:0 calc((100% - 100vw)/2)}.catalog-grid{grid-template-columns:repeat(3,1fr)}.contact-card{grid-template-columns:1fr 230px}.contact-copy{grid-column:1/-1}}
@media(max-width:720px){html{scroll-padding-top:64px}.shell{width:calc(100% - 30px)}.header-inner{height:62px;gap:9px}.brand strong{font-size:15px}.brand small{display:none}.brand-mark{width:34px;height:34px}.theme-toggle,.menu-button{height:36px;padding:0 9px}.section{padding:68px 0}.hero-layout{min-height:0}.hero-copy{padding:60px 0 34px}.eyebrow{font-size:10px}.hero h1{font-size:clamp(46px,14vw,66px)}.hero-sub{font-size:14px}.hero-actions{align-items:stretch;flex-direction:column;gap:16px}.text-button{text-align:center}.stats{width:100%;margin-top:36px}.stats div{min-width:0;flex:1;padding-right:10px;margin-right:10px}.stats strong{font-size:20px}.stats small{font-size:10px}.hero-visual{height:330px}.hero-visual:before{display:none}.hero-product{right:12px;bottom:12px;min-width:0;padding:11px 13px}.hero-product strong{font-size:14px}.section-head{display:block}.section-head p{margin-top:14px}.section-head h2,.resource-intro h2,.faq-title h2,.contact-copy h2{font-size:36px}.catalog-toolbar{grid-template-columns:1fr}.catalog-tabs{height:46px}.catalog-tabs button{min-width:86px}.catalog-status span{display:block;margin:4px 0 0}.catalog-grid{grid-template-columns:1fr 1fr}.catalog-card-body{padding:12px}.catalog-title-row{align-items:flex-start}.catalog-model h3{font-size:14px}.catalog-video{font-size:9px}.catalog-prices{grid-template-columns:1fr}.catalog-prices span:last-child{text-align:left}.review-card{width:315px;grid-template-columns:125px 1fr}.review-media{height:125px}.compat-rule{grid-template-columns:1fr}.compat-rule>div{border-right:0;border-bottom:1px solid var(--line)}.compat-rule>div:last-child{border:0}.feature-switch{width:100%;overflow-x:auto}.feature-switch button{min-width:max-content}.capability-layout,.resource-layout,.faq-layout{grid-template-columns:1fr;gap:34px}.capability-grid{grid-template-columns:1fr}.contact-card{grid-template-columns:1fr;padding:28px 20px}.contact-copy{grid-column:auto}.wechat-order{justify-content:flex-start}.wechat-contact{width:100%}footer{padding-bottom:95px}footer>div{display:grid;gap:14px}.bottom-nav{position:fixed;z-index:80;left:9px;right:9px;bottom:8px;display:grid;grid-template-columns:repeat(5,1fr);height:54px;border:1px solid var(--line);background:var(--header);backdrop-filter:blur(14px);box-shadow:var(--shadow)}.bottom-nav a{display:grid;place-items:center;color:var(--muted);font-size:11px}.modal-card{padding:28px 20px}.modal-product{grid-template-columns:1fr}.modal-product>img{height:175px}.modal-spec-grid{grid-template-columns:1fr 1fr}}
@media(max-width:450px){.catalog-grid{grid-template-columns:1fr}.catalog-image{aspect-ratio:16/10}.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}.stats div{min-width:0;margin:0;padding:0 7px}.stats div:first-child{padding-left:0}.stats div:last-child{padding-right:0}.stats strong{font-size:clamp(17px,5vw,20px);white-space:nowrap}.stats small{font-size:9px;line-height:1.4}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}
.catalog-card[hidden]{display:none}.catalog-more{display:block;margin:28px auto 0;padding:13px 24px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--text);font:800 15px/1.2 inherit;cursor:pointer;box-shadow:var(--shadow);transition:.2s ease}.catalog-more:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-1px)}.catalog-more[hidden]{display:none}
.accessories{background:var(--bg);border-bottom:1px solid var(--line)}.accessory-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.accessory-card{min-height:210px;display:flex;flex-direction:column;padding:23px;border:1px solid var(--line);background:var(--panel);transition:transform .2s,border-color .2s,box-shadow .2s}.accessory-card:hover{transform:translateY(-3px);border-color:var(--blue);box-shadow:var(--shadow)}.accessory-card small{color:var(--blue);font:700 10px ui-monospace,Consolas,monospace;letter-spacing:.08em}.accessory-card h3{margin:18px 0 8px;font-size:18px;line-height:1.35}.accessory-card p{margin:0;color:var(--muted);font-size:12px}.accessory-card a{margin-top:auto;padding-top:18px;color:var(--blue);font-size:12px;font-weight:700}@media(max-width:1040px){.accessory-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:720px){.accessory-grid{grid-template-columns:1fr 1fr;gap:10px}.accessory-card{min-height:190px;padding:16px}.accessory-card h3{margin-top:12px;font-size:15px}.accessory-card p{font-size:11px}.bottom-nav a{position:relative;z-index:1;touch-action:manipulation}}@media(max-width:450px){.catalog-grid{grid-template-columns:1fr 1fr}.catalog-image{aspect-ratio:4/3}.catalog-card-body{padding:10px}.catalog-title-row{display:grid;gap:7px}.catalog-model h3{font-size:13px}.catalog-video{width:max-content}.catalog-card-body>p{font-size:10px}.catalog-prices{gap:5px}.catalog-prices strong{font-size:10px}}

/* 购买判断与服务说明 */
.buying-guide{padding:62px 0;background:var(--surface);border-block:1px solid var(--line)}
.buying-guide-head{display:flex;align-items:end;justify-content:space-between;gap:40px;margin-bottom:28px}
.buying-guide-head span{color:var(--blue);font:700 11px ui-monospace,Consolas,monospace;letter-spacing:.12em}
.buying-guide-head h2{margin:8px 0 0;font-size:clamp(30px,3.4vw,44px);line-height:1.1;letter-spacing:-.04em}
.buying-guide-head>p{max-width:430px;margin:0;color:var(--muted);font-size:14px}
.buying-guide-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
.buying-guide-grid article{min-height:245px;display:flex;flex-direction:column;padding:22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--panel)}
.buying-guide-grid small{color:var(--blue);font:700 10px ui-monospace,Consolas,monospace;letter-spacing:.08em}
.buying-guide-grid h3{margin:26px 0 9px;font-size:18px;line-height:1.35}
.buying-guide-grid p{margin:0;color:var(--muted);font-size:13px;line-height:1.75}
.buying-guide-grid article>b{margin-top:auto;padding-top:18px;color:var(--orange);font-size:12px}
.price-equation{display:flex;align-items:center;flex-wrap:wrap;gap:5px}
.price-equation span{padding:2px 5px;background:var(--blue2);color:var(--blue);font-size:11px;font-weight:700}
.price-equation i{color:var(--orange);font-style:normal;font-weight:800}

/* 商品详情中的交付、价格和质保 */
dialog{overflow:auto}
.modal-delivery-grid{display:grid;grid-template-columns:1.35fr 1fr;border:1px solid var(--line)}
.modal-delivery-grid>div{padding:15px 17px}
.modal-delivery-grid>div+div{border-left:1px solid var(--line);background:var(--surface)}
.modal-delivery-grid small,.modal-price-note small,.modal-service small{color:var(--blue);font:700 10px ui-monospace,Consolas,monospace;letter-spacing:.06em}
.modal-delivery-grid ul{margin:10px 0 0;padding-left:18px;color:var(--muted);font-size:12px}
.modal-delivery-grid li+li{margin-top:4px}
.modal-price-note{display:grid;gap:5px;margin-top:16px;padding:15px 17px;border-left:3px solid var(--orange);background:var(--surface)}
.modal-price-note b{font-size:13px}
.modal-service{display:grid;grid-template-columns:repeat(3,1fr);margin-top:16px;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.modal-service span{display:grid;padding:13px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.modal-service b{font-size:13px}
.modal-service-note{margin:12px 0 0;color:var(--muted);font-size:11px}
.modal-contact-button,.consult-template-button{border:0;background:var(--blue);color:#fff;font-weight:700}
.modal-contact-button{width:100%;margin-top:18px;padding:13px 18px}
.consult-template-button{margin-top:14px;padding:10px 14px;font-size:12px}
.contact-copy>small{display:block;margin-top:9px;color:var(--muted);font-size:11px}

@media(max-width:1040px){.buying-guide-grid{grid-template-columns:repeat(2,1fr)}.buying-guide-grid article{min-height:220px}}
@media(max-width:720px){.buying-guide{padding:48px 0}.buying-guide-head{display:block}.buying-guide-head>p{margin-top:12px}.buying-guide-grid article{min-height:210px;padding:17px}.buying-guide-grid h3{margin-top:18px;font-size:16px}.buying-guide-grid p{font-size:12px}.modal-delivery-grid{grid-template-columns:1fr}.modal-delivery-grid>div+div{border-left:0;border-top:1px solid var(--line)}}
@media(max-width:360px){.buying-guide-grid{grid-template-columns:1fr}.buying-guide-grid article{min-height:0}.modal-service{grid-template-columns:1fr}}