*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;color:#182847;background:#fff;font-family:Arial,'Microsoft YaHei',sans-serif;font-size:16px;line-height:1.8}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button,a,input,textarea{outline-offset:5px}button{cursor:pointer}img{max-width:100%;display:block}.wrap{max-width:1200px;margin:auto;padding:0 28px}.topbar{background:#132347;color:#b8c8e8;font-size:12px}.topbar .wrap{display:flex;justify-content:space-between;padding-top:7px;padding-bottom:7px}header{position:sticky;top:0;background:#ffffffed;backdrop-filter:blur(16px);z-index:10;border-bottom:1px solid #edf0f6}.nav{height:80px;display:flex;align-items:center;gap:28px}.brand{font-size:25px;font-weight:800;letter-spacing:-1px;margin-right:auto;color:#184ee3}.brand small{font-size:12px;letter-spacing:2px;display:block;color:#52627d;line-height:1}.links{display:flex;gap:23px;font-size:14px}.links a:hover,.links a[aria-current=page]{color:#2458ee}.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;background:#2558ec;color:white;border:1px solid #2558ec;padding:12px 25px;border-radius:6px;font-weight:600;font-size:14px}.btn:hover{background:#1742c5}.btn.light{background:white;color:#2345a2;border-color:#d7dfef}.menu{display:none;border:0;background:none;font-size:24px}.hero{overflow:hidden;background:radial-gradient(ellipse at 80% 35%,#dce7ff,transparent 58%),#f4f7fc;padding:82px 0 68px}.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center}.eyebrow{font-size:12px;letter-spacing:3px;color:#3764da;font-weight:bold}.hero h1{font-size:49px;line-height:1.35;letter-spacing:-2px;margin:20px 0}.hero h1 em{font-style:normal;color:#2558ec}.lead{color:#63718a;max-width:560px}.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}.hero-art{position:relative;transform:perspective(1000px) rotateY(-8deg);box-shadow:0 28px 65px #24488c28;border:8px solid white;border-radius:12px}.hero-art .label{position:absolute;bottom:-25px;left:-26px;background:white;padding:14px 22px;box-shadow:0 10px 30px #15305a15;font-size:13px;border-radius:7px}.trust{display:flex;gap:35px;font-size:13px;color:#6c7890;padding-top:35px}.section{padding:82px 0}.pale{background:#f4f7fc}.section-title{margin-bottom:36px}.section-title.center{text-align:center}.section-title h2{font-size:32px;line-height:1.4;margin:10px 0 12px}.section-title p{color:#758199;margin:0}.split-head{display:flex;justify-content:space-between;align-items:end;gap:25px}.grid{display:grid;gap:22px}.three{grid-template-columns:repeat(3,1fr)}.services{grid-template-columns:repeat(3,1fr)}.service{border:1px solid #e5eaf3;border-radius:9px;padding:30px;transition:.2s;background:white}.service:hover{transform:translateY(-5px);box-shadow:0 20px 38px #193b7810;border-color:#bacbfa}.icon{width:45px;height:45px;background:#edf2ff;color:#285bef;display:grid;place-items:center;font-size:22px;border-radius:12px}.service h3{font-size:20px;margin:20px 0 10px}.service p{color:#738097;font-size:14px}.service .more{font-size:13px;color:#2558ec}.number{font-size:46px;font-weight:800;color:#ccd8f5}.adv h3{font-size:21px}.adv p{font-size:14px;color:#748098}.case{border-radius:8px;overflow:hidden;border:1px solid #e4e9f2;background:white}.case button{display:block;width:100%;padding:0;border:0;background:none}.case img{aspect-ratio:16/10;object-fit:cover;transition:.3s}.case:hover img{transform:scale(1.025)}.case-copy{padding:20px}.case-copy h3{font-size:18px;margin:0 0 5px}.tag{color:#7f8ca5;font-size:12px}.case-copy .tag{display:flex;justify-content:space-between}.demo{font-size:11px;background:#f0f3fa;color:#687792;padding:1px 8px;border-radius:4px}.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:25px}.step{border-top:2px solid #dce5f9;padding-top:20px}.step b{font-size:27px;color:#2a58dc}.step h3{font-size:17px}.step p{font-size:13px;color:#738199}.article-card{padding:27px;background:#fff;border-top:3px solid #2e5be6;box-shadow:0 8px 30px #18386b08}.article-card h3{font-size:19px}.article-card p{font-size:14px;color:#758199}.faq{max-width:860px;margin:auto}details{border-bottom:1px solid #e2e7f0;padding:20px 0}summary{font-size:17px;font-weight:600;cursor:pointer}details p{font-size:14px;color:#6b7990}.contact{background:#14264d;color:white}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:85px}.contact h2{font-size:34px;line-height:1.4}.contact .phone{font-size:38px;font-weight:bold;letter-spacing:1px}.contact p{color:#b5c2dc}.contact form{background:#20365f;padding:28px;border-radius:10px}label{display:block;font-size:13px;margin-bottom:15px}input,textarea{display:block;width:100%;background:#fff;color:#182847;border:1px solid #cad3e3;border-radius:4px;padding:12px;margin-top:6px}textarea{resize:vertical}.form-note{font-size:12px!important}.form-output{white-space:pre-wrap;background:#0e1c37;padding:15px;font-size:13px;margin:15px 0}.footer{background:#0e1c37;color:#8f9db8;padding:44px 0;font-size:13px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}.footer .brand{display:block;color:white}.footer a{display:block;margin:5px 0}.copyright{border-top:1px solid #26334d;margin-top:25px;padding-top:20px;font-size:12px}.floating{position:fixed;right:20px;bottom:26px;z-index:12;box-shadow:0 7px 25px #1b3a6e30}.page-hero{background:#f0f4fd;padding:65px 0}.page-hero h1{font-size:38px;margin:10px 0}.breadcrumbs{font-size:13px;color:#7c89a1}.reading{max-width:860px;margin:auto;padding:60px 28px}.reading h2{font-size:25px;margin-top:35px}.reading p,.reading li{color:#5e6e88}.reading .callout{background:#f1f5fe;padding:25px;border-left:3px solid #2558ec}.modal{border:0;border-radius:10px;padding:15px;width:min(1000px,94vw);max-height:94vh}.modal::backdrop{background:#0d1e40cc}.modal-close{float:right;background:#172c51;color:white;border:0;padding:6px 15px;border-radius:5px;margin-bottom:10px}.modal img{width:100%}.modal p{clear:both;margin:10px;font-size:13px}.skip{position:absolute;left:-9999px}.skip:focus{left:15px;top:15px;background:#fff;padding:10px;z-index:100}@media(max-width:1000px){.links{gap:12px;font-size:12px}.nav{gap:14px}.nav>.btn{display:none}.hero h1{font-size:38px}.hero-grid{gap:25px}.contact-grid{gap:35px}}@media(max-width:720px){.wrap{padding:0 20px}.topbar .wrap{justify-content:center}.topbar span:last-child{display:none}.nav{height:68px}.brand{font-size:23px}.menu{display:block}.links{display:none;position:absolute;left:0;right:0;top:68px;background:white;padding:20px;font-size:16px;box-shadow:0 14px 20px #18284715}.links.open{display:grid;grid-template-columns:1fr 1fr;gap:18px}.hero{padding:45px 0 55px}.hero-grid{grid-template-columns:1fr;gap:45px}.hero h1{font-size:36px;letter-spacing:-1px}.hero-art{transform:none;margin:0 5px 15px}.hero-art .label{left:-5px}.trust{gap:12px;flex-wrap:wrap;font-size:12px}.section{padding:52px 0}.section-title h2{font-size:27px}.three,.services{grid-template-columns:1fr}.split-head{display:block}.steps{grid-template-columns:1fr 1fr}.contact-grid{grid-template-columns:1fr;gap:25px}.contact .phone{font-size:31px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.floating{right:12px;bottom:14px;font-size:12px;padding:9px 15px}.page-hero h1{font-size:30px}.service{padding:25px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;transform:none!important}}
/* V2 开封分站：保留 V1 布局，仅补充长标题与文字可访问性 */
.reading a:not(.btn){color:#2454d4;text-decoration:underline;text-underline-offset:3px}.breadcrumbs a{color:#2454d4}.reading h1{overflow-wrap:anywhere}.related{font-size:14px}.hero h1{font-size:46px}.footer .brand{font-size:25px}@media(max-width:720px){.hero h1{font-size:34px}.brand small{font-size:11px;letter-spacing:1px}.page-hero h1{overflow-wrap:anywhere}.contact h2{font-size:29px}}
/* V3：长内容服务页，正文直接输出到 HTML。 */
.service-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:58px;padding-top:55px;padding-bottom:70px;align-items:start}.service-toc{position:sticky;top:112px;border-left:2px solid #dce5fa;padding-left:20px;font-size:13px}.service-toc strong{display:block;margin-bottom:16px;color:#25395b}.service-toc a{display:block;margin:12px 0;color:#65758d}.service-toc a:hover{color:#2558ec}.service-body{min-width:0;max-width:850px}.service-body section{margin-bottom:40px;scroll-margin-top:110px}.service-body h2{font-size:26px;line-height:1.5;margin:0 0 20px;letter-spacing:-.5px}.service-body h3{font-size:19px;margin:28px 0 12px}.service-body p,.service-body li{font-size:15px;color:#53647e;line-height:1.95}.service-body li{margin:9px 0}.service-body ul,.service-body ol{padding-left:23px}.service-answer{background:#f0f5ff;border-left:3px solid #2558ec;padding:21px 24px;color:#263e69!important}.table-scroll{overflow-x:auto;border:1px solid #dce5f1;border-radius:6px;max-width:100%}.table-scroll:focus-visible{outline:2px solid #2558ec}.service-body table{border-collapse:collapse;width:100%;min-width:590px;font-size:13px;text-align:left}.service-body caption{caption-side:top;text-align:left;padding:14px 16px;background:#f4f7fc;font-weight:bold}.service-body th,.service-body td{padding:15px 17px;border-bottom:1px solid #e2e8f2;vertical-align:top}.service-body thead th{background:#eaf0fc;color:#294879}.service-body tbody th{width:20%;font-weight:600}.service-body td{color:#62728b}.service-body tr:last-child>*{border-bottom:0}.service-faq summary{font-size:16px}.service-faq details p{margin-bottom:3px}.service-cta{background:#f2f6ff;border-radius:10px;padding:30px;margin:40px 0}.service-cta h2{margin:10px 0}.service-cta .small-note{font-size:12px}.related-reading{border-top:1px solid #e2e8f2;padding-top:28px}.related-reading h2{font-size:20px}.related-reading a{color:#2454d4;text-decoration:underline;text-underline-offset:4px}@media(max-width:900px){.service-layout{grid-template-columns:1fr;gap:30px}.service-toc{position:static;border-left:0;border-bottom:1px solid #dce5fa;padding:0 0 22px;display:flex;gap:10px 20px;flex-wrap:wrap}.service-toc strong{width:100%;margin:0}.service-toc a{margin:0}.service-body{max-width:none}}@media(max-width:720px){.service-layout{padding-top:32px;padding-bottom:45px}.service-body h2{font-size:23px}.service-body h3{font-size:18px}.service-body p,.service-body li{font-size:15px}.service-cta{padding:22px}.service-answer{padding:18px}.service-toc{font-size:12px}.service-body section{margin-bottom:34px}}
/* 联系页首屏下方的微信咨询区 */
.contact-wechat{display:grid;grid-template-columns:1fr 240px;align-items:center;gap:40px;margin:36px auto 0;padding:28px 32px;max-width:900px;background:#fff;border:1px solid #dce4f5;border-radius:16px}.contact-wechat h2{font-size:clamp(22px,3vw,30px);line-height:1.4;margin:12px 0}.contact-wechat p{font-size:16px;line-height:1.8;color:#586b87}.contact-wechat a{color:#2455ef;font-weight:600}.contact-wechat figure{margin:0;text-align:center}.contact-wechat img{display:block;width:220px;max-width:100%;height:auto;margin:auto}.contact-wechat figcaption{font-size:14px;color:#586b87;margin-top:8px}@media(max-width:640px){.contact-wechat{grid-template-columns:1fr;padding:24px 20px;gap:20px}.contact-wechat figure{grid-row:2}}