:root{--accent:#cf2e2e;--accent-dark:#ad2020;--ink:#292d32;--muted:#71777e;--line:#e3e6e9;--surface:#fff;--soft:#f4f5f6;--navy:#263d51;--shadow:0 12px 32px rgba(32,49,65,.09);--radius:2px}
html{scroll-behavior:smooth}.weidun-support-page,.weidun-support-page *{box-sizing:border-box}.weidun-support-page{margin:0!important;padding:0!important;max-width:none!important;color:var(--ink);background:var(--surface);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased}.weidun-support-page img{display:block;max-width:100%}.weidun-support-page a{color:inherit}.weidun-support-page button,.weidun-support-page input,.weidun-support-page select,.weidun-support-page textarea{font:inherit}.weidun-support-page .container{width:min(1200px,calc(100% - 40px))!important;max-width:1200px!important;margin-inline:auto!important;padding-left:0!important;padding-right:0!important}.weidun-support-page .container:before,.weidun-support-page .container:after{display:none!important;content:none!important}.weidun-support-page .section{padding:82px 0 90px!important}.weidun-support-page .section-muted{background:var(--soft)!important}
.support-hero{position:relative;height:580px;display:grid;align-items:center;color:#fff;background:#335574 url("../images/hero-support.jpg") center 45%/cover no-repeat;overflow:hidden}.support-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,50,76,.82),rgba(30,65,94,.44) 50%,rgba(35,70,97,.12))}.hero-content{position:relative;z-index:1}.hero-label{margin:0 0 7px;color:rgba(255,255,255,.65);font-size:13px;letter-spacing:.14em}.hero-content h1{margin:0;font-size:clamp(42px,5vw,64px);line-height:1.2;letter-spacing:.04em}.hero-rule{display:block;width:44px;height:3px;margin:19px 0;background:#fff}.hero-content>p:last-child{max-width:560px;margin:0;color:rgba(255,255,255,.9);font-size:17px}
.support-breadcrumb{height:56px;display:flex;align-items:center;border-bottom:1px solid var(--line);background:#fff;color:#8a9095;font-size:13px}.support-breadcrumb .container{display:flex;align-items:center;gap:9px}.support-breadcrumb a{text-decoration:none;transition:color .2s ease}.support-breadcrumb a:hover,.support-breadcrumb a:focus-visible{color:var(--accent)}.support-breadcrumb span[aria-current=page]{color:#555c62}
.quick-entry{position:relative;margin:0;padding:0;z-index:2}.entry-grid{display:grid;grid-template-columns:1fr 1fr;box-shadow:var(--shadow)}.entry-item{min-height:138px;padding:28px 36px;display:flex;flex-direction:column;justify-content:center;background:#fff;text-decoration:none;border-right:1px solid var(--line);transition:transform .2s ease,box-shadow .2s ease}.entry-item:hover{transform:translateY(-3px)}.entry-item span{color:#8a9095;font-size:12px}.entry-item strong{margin:3px 0;color:var(--ink);font-size:22px}.entry-item small{color:var(--muted);font-size:13px}.entry-item-accent{background:var(--navy);border-right:0}.entry-item-accent span,.entry-item-accent small{color:rgba(255,255,255,.68)}.entry-item-accent strong{color:#fff}
.section{padding:82px 0 90px}.section-muted{background:var(--soft)}.section-heading{max-width:760px;margin:0 auto 44px;text-align:center}.section-heading h2{position:relative;display:inline-block;margin:0;font-size:28px;line-height:1.35}.section-heading h2:after{content:"";position:absolute;left:50%;bottom:-13px;width:24px;height:2px;background:var(--accent);transform:translateX(-50%)}.section-heading p{margin:24px 0 0;color:#878d92;font-size:14px}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-left:1px solid var(--line)}.feature-item{min-height:210px;padding:38px 40px;display:grid;grid-template-columns:52px 1fr;gap:22px;background:#fff;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.feature-item img,.after-sales-grid img{width:40px;height:40px;filter:invert(23%) sepia(88%) saturate(2468%) hue-rotate(345deg) brightness(88%) contrast(85%)}.feature-item h3,.after-sales-grid h3{margin:0 0 9px;font-size:18px}.feature-item p,.after-sales-grid p{margin:0;color:var(--muted);font-size:13px}
.dealer-panel,.after-entry{margin-top:28px;padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;background:var(--navy);color:#fff}.dealer-panel span,.after-entry span{color:rgba(255,255,255,.58);font-size:12px}.dealer-panel h3,.after-entry h3{margin:4px 0 5px;font-size:23px}.dealer-panel p,.after-entry p{margin:0;color:rgba(255,255,255,.7);font-size:13px}
.primary-button{display:inline-flex;min-width:116px;min-height:44px;align-items:center;justify-content:center;padding:10px 24px;border:1px solid var(--accent);border-radius:var(--radius);background:var(--accent);color:#fff;font-size:14px;font-weight:600;text-decoration:none;white-space:nowrap;cursor:pointer;transition:background-color .2s ease,border-color .2s ease,transform .15s ease}.primary-button:hover{background:var(--accent-dark);border-color:var(--accent-dark)}.primary-button:active{transform:translateY(1px)}.primary-button:focus-visible{outline:3px solid rgba(207,46,46,.24);outline-offset:3px}
.install-layout{display:grid;grid-template-columns:1.05fr .95fr;background:#fff;box-shadow:var(--shadow)}.install-layout>img{width:100%;height:100%;min-height:520px;object-fit:cover}.install-list{padding:28px 42px}.install-list article{display:grid;grid-template-columns:44px 1fr;gap:18px;padding:23px 0;border-bottom:1px solid var(--line)}.install-list article:last-child{border-bottom:0}.install-list article>span{color:var(--accent);font-size:18px;font-weight:700}.install-list h3{margin:0 0 3px;font-size:17px}.install-list p{margin:0;color:var(--muted);font-size:13px}
.after-entry{margin:0 0 28px;background:#334f65}.after-sales-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.after-sales-grid article{min-height:250px;padding:34px 28px;background:#fff;border:1px solid var(--line)}.after-sales-grid img{margin-bottom:22px}.after-sales-grid h3{font-size:17px}
.self-service-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.download-panel,.check-panel{min-height:390px;padding:44px 46px;background:#fff;border:1px solid var(--line)}.download-panel>span,.check-panel>span{color:var(--accent);font-size:13px}.download-panel h3,.check-panel h3{margin:4px 0 24px;font-size:24px}.resource-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}.resource-list p{margin:0;padding:13px 15px;background:var(--soft);color:#62686d;font-size:13px}.text-link{display:inline-block;margin-top:28px;color:var(--accent);font-weight:600;text-decoration:none}.issue-tags{display:flex;flex-wrap:wrap;gap:10px}.issue-tags span{padding:9px 13px;border:1px solid #d7dbde;color:#545a5f;font-size:13px}.check-panel>p{margin:28px 0 0;color:var(--muted);font-size:13px}
.partner-section{background:#fff}.partner-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:80px;align-items:center}.partner-layout h2{position:relative;margin:0 0 28px;font-size:30px}.partner-layout h2:after{content:"";position:absolute;left:0;bottom:-13px;width:24px;height:2px;background:var(--accent)}.partner-layout>div:first-child>p{margin:0 0 28px;color:var(--muted)}.partner-list{border-top:1px solid var(--line)}.partner-list p{margin:0;padding:18px 4px;border-bottom:1px solid var(--line);font-size:15px}
.promise-list{display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border:1px solid var(--line)}.promise-list article{min-height:205px;padding:35px 26px;border-right:1px solid var(--line)}.promise-list article:last-child{border-right:0}.promise-list h3{margin:0 0 22px;padding-bottom:13px;border-bottom:2px solid var(--accent);font-size:17px}.promise-list p{margin:0;color:var(--muted);font-size:13px}
.faq-container{max-width:960px}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{position:relative;padding:22px 46px 22px 4px;cursor:pointer;font-size:16px;font-weight:600;list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";position:absolute;right:8px;top:20px;color:var(--accent);font-size:22px}.faq-list details[open] summary:after{content:"−"}.faq-list details p{margin:0;padding:0 46px 23px 4px;color:var(--muted);font-size:14px}
.request-section{scroll-margin-top:20px}.request-layout{display:grid;grid-template-columns:.66fr 1.34fr;background:#fff;box-shadow:var(--shadow)}.request-layout aside{padding:50px 42px;background:var(--navy);color:#fff}.request-layout aside span{display:block;color:rgba(255,255,255,.62);font-size:13px}.request-layout aside a{display:block;margin:6px 0 22px;color:#fff;font-size:27px;font-weight:700;text-decoration:none}.request-layout aside p{margin:0;color:rgba(255,255,255,.7);font-size:13px}.form-panel{padding:46px 50px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 22px}.field{display:flex;flex-direction:column;gap:7px}.field-full{grid-column:1/-1}.field label{color:#3f454a;font-size:14px;font-weight:600}.field label span{color:var(--accent)}.field input,.field select,.field textarea{width:100%;border:1px solid #cfd4d8;border-radius:var(--radius);background:#fff;color:#24292e;outline:0;transition:border-color .2s ease,box-shadow .2s ease}.field input,.field select{height:46px;padding:0 13px}.field textarea{min-height:132px;padding:11px 13px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(207,46,46,.12)}.field [aria-invalid=true]{border-color:var(--accent)}.field small{color:#a61d24;font-size:12px}.field small:empty{display:none}.field-meta{display:flex;justify-content:space-between;gap:12px;color:#777d82}.field-meta small:last-child{display:block;color:#777d82}.submit-button{min-width:142px;margin-top:25px}.trap{position:absolute;left:-10000px;width:1px;height:1px;overflow:hidden}.form-status{margin:0 0 23px;padding:14px 17px;border-left:3px solid;font-size:13px}.form-status strong{display:block}.form-status.success{border-color:#33845d;background:#edf7f2;color:#285f47}.form-status.error{border-color:var(--accent);background:#fff0f0;color:#842329}.form-status ul{margin:5px 0 0;padding-left:18px}
@media(max-width:980px){.after-sales-grid{grid-template-columns:1fr 1fr}.promise-list{grid-template-columns:1fr 1fr}.promise-list article{border-bottom:1px solid var(--line)}.install-layout{grid-template-columns:1fr}.install-layout>img{max-height:420px;min-height:0}.partner-layout{grid-template-columns:1fr;gap:38px}.request-layout{grid-template-columns:1fr}}
@media(max-width:700px){.weidun-support-page .container{width:min(100% - 30px,1200px)!important}.support-hero{height:580px;background-position:58% center}.hero-content h1{font-size:42px}.hero-content>p:last-child{font-size:15px}.support-breadcrumb{height:50px}.quick-entry{margin:0;padding:0}.entry-grid,.feature-grid,.self-service-grid,.form-grid{grid-template-columns:1fr}.entry-item{min-height:128px;padding:24px}.section{padding:58px 0 64px}.section-heading{margin-bottom:34px}.section-heading h2{font-size:24px}.feature-item{min-height:0;padding:30px 24px;grid-template-columns:44px 1fr;gap:16px}.dealer-panel,.after-entry{padding:30px 24px;align-items:flex-start;flex-direction:column}.dealer-panel .primary-button,.after-entry .primary-button{width:100%}.install-list{padding:16px 25px}.install-list article{grid-template-columns:38px 1fr}.after-sales-grid,.promise-list{grid-template-columns:1fr}.after-sales-grid article{min-height:0}.download-panel,.check-panel{min-height:0;padding:34px 26px}.resource-list{grid-template-columns:1fr}.partner-layout{gap:30px}.partner-layout h2{font-size:25px}.promise-list article{min-height:0;border-right:0}.request-layout aside,.form-panel{padding:35px 25px}.field-full{grid-column:auto}.submit-button{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.weidun-support-page *,.weidun-support-page *:before,.weidun-support-page *:after{transition-duration:.01ms!important}}
@media print{.support-hero{height:260px}.primary-button,.request-section{display:none}.section{padding:35px 0}}