:root{color-scheme:light;--background:#f7f8fa;--ink:#1d1d1f;--muted:#737780;--line:#eceef2;--blue:#386de8;--dark:#292c33;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--background);font-synthesis:none;}
*{box-sizing:border-box;}body{margin:0;}button,input,a{-webkit-tap-highlight-color:transparent;}button,input{font:inherit;}button,a{touch-action:manipulation;}button{cursor:pointer;}a{color:inherit;text-decoration:none;}button:disabled{cursor:wait;opacity:.65;}img,svg{vertical-align:middle;}[hidden]{display:none!important;}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #8aa7f0;outline-offset:4px;}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;}.skip-link{position:fixed;top:-100px;left:20px;background:white;padding:12px;z-index:10;border-radius:10px;}.skip-link:focus{top:10px;}
.store-header,.store-footer{width:min(1328px,calc(100% - 112px));margin:auto;}.store-header{height:100px;display:flex;align-items:center;justify-content:space-between;gap:24px;position:relative;}.brand{display:inline-flex;align-items:center;gap:9px;font-size:23px;letter-spacing:-1px;font-weight:750;}.brand img{width:31px;height:31px;}.brand-dot{color:#9c9fa7;}.service-nav{position:absolute;left:50%;transform:translateX(-50%);display:flex;gap:3px;background:#e9ebefb3;padding:5px;border:1px solid #eceef2;border-radius:100px;}.service-nav a{display:flex;align-items:center;justify-content:center;gap:6px;white-space:nowrap;min-width:98px;padding:11px 12px;font-size:12px;color:var(--muted);border-radius:100px;transition:background .2s,color .2s,box-shadow .2s;}.service-nav a[aria-current="page"]{background:white;color:var(--ink);box-shadow:0 2px 5px #20243108;}.service-nav a:hover{color:var(--ink);}.service-nav svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.5;}.nav-symbol{font-size:19px;line-height:15px;color:var(--blue);}.header-note{color:#858a94;font-size:11px;}
.store-main{width:min(1120px,calc(100% - 112px));margin:0 auto;min-height:calc(100svh - 172px);display:grid;align-items:center;padding:28px 0 42px;}.service-view{scroll-margin-top:180px;display:grid;grid-template-columns:minmax(0,1fr) 430px;gap:90px;align-items:center;}.product-stage{min-width:0;align-self:stretch;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:12px 0 32px;}.product-art{position:relative;width:100%;height:370px;display:grid;place-items:center;isolation:isolate;}.product-glow{position:absolute;width:420px;max-width:100%;height:350px;z-index:-1;background:radial-gradient(ellipse,#e6edff 0%,#eef2fc80 40%,transparent 70%);filter:blur(15px);}.product-mascot{width:min(355px,82%);height:auto;filter:drop-shadow(0 22px 20px #8a9bc51a);transform:translateY(-9px);}.floating-label{position:absolute;bottom:11px;left:50%;transform:translateX(-50%);font-size:9px;letter-spacing:1.7px;white-space:nowrap;color:#9499a6;}.floating-label span{color:#8a9ee8;margin-right:6px;}.product-caption{margin-top:38px;}.product-caption h2{font-size:21px;font-weight:600;letter-spacing:-.5px;margin:0 0 10px;}.product-caption p{font-size:12px;color:#9297a3;margin:0;}.stage-indicator{display:flex;align-items:center;gap:6px;margin-top:32px;}.stage-indicator span{width:5px;height:5px;border-radius:20px;background:#dde0e6;}.stage-indicator .active{width:18px;background:#9fa5b3;}
.service-card{width:100%;border:1px solid var(--line);border-radius:28px;background:#fff;padding:32px;box-shadow:0 12px 35px #20243103;}.card-heading{margin-bottom:26px;}.product-eyebrow{display:block;font-size:9px;letter-spacing:1.65px;color:#9a9faa;font-weight:600;}.card-heading h1{font-size:38px;letter-spacing:-1.8px;font-weight:650;line-height:1.15;margin:8px 0 10px;}.card-heading>p{font-size:14px;color:#85858b;margin:0;}.plan-list{margin:0;padding:0;border:0;display:grid;gap:10px;}.plan-option{display:flex;align-items:center;gap:11px;position:relative;padding:17px 16px;border:1px solid #e6e8ed;border-radius:15px;cursor:pointer;transition:border-color .2s,background .2s,box-shadow .2s;min-height:78px;}.plan-option:hover{background:#fafbfc;border-color:#cbd3e7;}.plan-option:has(input:checked){border-color:#94a6dd;background:#f9faff;box-shadow:inset 0 0 0 1px #94a6dd26;}.plan-option:has(input:focus-visible){outline:3px solid #a6bbed;outline-offset:3px;}.plan-option input{position:absolute;inset:0;width:100%;height:100%;opacity:0;margin:0;cursor:pointer;}.selection-dot{flex:none;width:17px;height:17px;border:1px solid #dce0e8;border-radius:50%;background:white;display:grid;place-items:center;}.plan-option input:checked+.selection-dot{background:#5279df;border-color:#5279df;}.plan-option input:checked+.selection-dot:after{content:"";width:7px;height:4px;border-left:1.5px solid white;border-bottom:1.5px solid white;transform:translateY(-1px) rotate(-45deg);}.plan-details{display:flex;flex-direction:column;gap:5px;}.plan-details strong{font-size:13px;font-weight:600;}.plan-details>span{font-size:11px;color:#9a9faa;}.plan-price{font-size:22px;letter-spacing:-.8px;margin-left:auto;white-space:nowrap;}.plan-price>span{font-size:11px;letter-spacing:0;margin-right:3px;}.contact-line{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;margin:25px 0 23px;color:#565b66;}.wechat-label{display:flex;align-items:center;gap:6px;font-size:11px;color:#9398a2;}.wechat-label svg{width:18px;height:18px;fill:none;stroke:#62a77a;stroke-width:1.4;}.quote-line{border-top:1px solid #f0f1f3;padding-top:21px;display:flex;align-items:center;justify-content:space-between;margin-bottom:21px;}.quote-line>div>span{font-size:12px;color:#8f949f;}.quote-line small{display:block;margin-top:5px;color:#a0a5af;font-size:10px;}.quote-line p{margin:0;display:flex;align-items:baseline;gap:4px;}.quote-line p>span{font-size:15px;}.quote-line strong{font-size:28px;letter-spacing:-1px;font-weight:550;}.primary-button{border:1px solid var(--dark);display:flex;align-items:center;justify-content:center;gap:13px;min-height:48px;padding:13px 20px;border-radius:11px;color:white;background:var(--dark);width:100%;font-size:12px;transition:background .2s,transform .2s;box-shadow:0 2px 3px #2024310a;}.primary-button:hover{background:#41444b;}.primary-button:active{transform:translateY(1px);}.primary-button>span{font-size:17px;}.card-footnote{font-size:10px;line-height:1.8;color:#a0a5af;text-align:center;margin:15px 0 0;}.phone-art{width:300px;max-width:78%;height:auto;filter:drop-shadow(0 18px 30px #8a9bc51a);}.service-steps{margin:35px 0 40px;padding:0;list-style:none;display:grid;gap:30px;}.service-steps li{display:flex;gap:16px;align-items:flex-start;}.service-steps li>span{display:grid;place-items:center;flex:none;width:32px;height:32px;border-radius:10px;background:#f0f3fc;font-size:11px;color:#6585db;}.service-steps h2{font-size:14px;margin:0 0 8px;font-weight:600;}.service-steps p{font-size:12px;color:#9297a3;line-height:1.9;margin:0;}.sms-card .contact-line{padding-top:24px;border-top:1px solid var(--line);}
.store-footer{min-height:72px;border-top:1px solid #e5e7ed;display:flex;gap:20px;align-items:center;justify-content:space-between;font-size:10px;color:#9a9faa;}.store-footer p{margin:0;}.store-footer a{padding:15px 0;}.store-footer a:hover{color:var(--ink);}.store-footer a span{margin-left:5px;}.contact-dialog{width:min(410px,calc(100% - 40px));border:1px solid var(--line);border-radius:26px;padding:34px;background:white;color:var(--ink);box-shadow:0 25px 100px #20243124;}.contact-dialog::backdrop{background:#24293338;backdrop-filter:blur(5px);}.dialog-close{position:absolute;right:16px;top:12px;width:32px;height:32px;border:0;background:transparent;border-radius:50%;color:#999ea8;font-size:24px;}.dialog-close:hover{background:#f1f2f5;}.dialog-icon{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:#eef3ff;color:var(--blue);font-size:24px;margin-bottom:25px;}.contact-dialog h2{font-size:25px;letter-spacing:-.7px;margin:10px 0;}.contact-dialog #contact-description{font-size:13px;color:#868c97;line-height:1.8;margin-bottom:26px;}.wechat-field{font-size:12px;color:#747b88;display:grid;gap:10px;}.wechat-field input{width:100%;min-width:0;background:#f8f9fb;border:1px solid #e6e8ed;border-radius:10px;padding:14px;font-size:19px;letter-spacing:.5px;color:var(--ink);}.contact-dialog .primary-button{margin-top:18px;}.copy-status{font-size:11px;line-height:1.9;color:#959ba7;min-height:40px;margin:16px 0 0;overflow-wrap:anywhere;}.noscript-notice{font-size:13px;text-align:center;padding:20px;color:var(--muted);}
@media(min-width:1500px){.store-main{padding-top:40px;padding-bottom:60px;}.product-art{height:410px;}.product-mascot{width:385px;}}
@media(max-width:1100px){.store-header,.store-footer{width:calc(100% - 64px);}.header-note{display:none;}.store-header{justify-content:flex-start;}.store-main{width:calc(100% - 64px);}.service-view{grid-template-columns:minmax(0,1fr) 400px;gap:35px;}.product-mascot{width:90%;}.product-art{height:330px;}.service-nav{left:auto;right:0;transform:none;}.service-card{padding:28px;}.product-caption h2{font-size:18px;}}
@media(max-width:800px){.store-header,.store-footer{width:calc(100% - 40px);}.store-main{width:calc(100% - 40px);}.service-view{grid-template-columns:minmax(0,1fr) 360px;gap:28px;}.service-card{padding:26px;}.product-art{height:270px;}.product-caption h2{font-size:16px;}.product-caption p{font-size:10px;}.floating-label{font-size:7px;letter-spacing:1px;}.service-nav a{min-width:85px;padding:11px 10px;}}
@media(max-width:700px){.store-header{height:132px;align-items:flex-start;padding-top:24px;}.brand{font-size:22px;}.brand img{width:28px;height:28px;}.service-nav{right:auto;left:50%;top:77px;transform:translateX(-50%);width:max-content;max-width:100%;padding:4px;gap:1px;}.service-nav a{min-width:0;padding:10px 13px;font-size:11px;gap:4px;}.service-nav svg{width:13px;height:13px;}.nav-symbol{font-size:16px;}.store-main{padding:0 0 28px;min-height:calc(100svh - 202px);}.service-view{grid-template-columns:1fr;gap:20px;}.product-stage{padding:0;}.product-art{height:220px;}.product-mascot{width:205px;max-width:75%;transform:translateY(-2px);}.product-glow{height:200px;width:300px;}.floating-label{bottom:5px;font-size:7px;letter-spacing:1.6px;}.product-caption{margin-top:12px;}.product-caption h2{font-size:16px;margin:0 0 7px;}.product-caption p{font-size:10px;}.stage-indicator{margin-top:15px;}.stage-indicator span{height:4px;}.service-card{padding:26px;border-radius:24px;}.card-heading{margin-bottom:25px;}.card-heading h1{font-size:34px;margin-top:8px;}.card-heading>p{font-size:13px;}.plan-option{min-height:76px;padding:16px 14px;}.plan-price{font-size:22px;}.store-footer{font-size:9px;min-height:70px;gap:10px;}.store-footer>p:nth-child(2){display:none;}.phone-art{width:190px;height:215px;}.service-steps{gap:27px;margin:30px 0 35px;}.sms-art+.product-caption{margin-top:12px;}}
@media(max-width:359px){.service-nav a{padding:10px;font-size:10px;}.service-card{padding:22px;}.product-art{height:200px;}.product-mascot{width:185px;}.contact-dialog{padding:28px;}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{transition:none!important;scroll-behavior:auto!important;}}

/* The catalogue is a home panel; only its explicit details link opens an article. */
.tutorial-view{display:block;width:100%;max-width:880px;margin-inline:auto;}
.catalog-heading{margin-bottom:34px;}
.catalog-heading h1{font-size:34px;letter-spacing:-1.2px;line-height:1.5;margin:20px 0 14px;font-weight:650;}
.catalog-heading>p{font-size:14px;line-height:1.9;color:var(--muted);margin:0;}
.inline-tutorial-list{display:grid;gap:20px;}
.inline-tutorial-card{display:grid;grid-template-columns:80px minmax(0,1fr);gap:28px;align-items:center;padding:32px;background:white;border:1px solid var(--line);border-radius:28px;}
.inline-tutorial-icon{width:80px;height:96px;display:grid;place-items:center;background:#f0f3fb;color:#5279df;font-size:43px;border-radius:20px;}
.inline-tutorial-tag{font-size:11px;color:#8f949f;margin:0 0 13px;}
.inline-tutorial-content h2{font-size:23px;line-height:1.6;letter-spacing:-.6px;margin:0 0 12px;font-weight:650;}
.inline-tutorial-summary{font-size:14px;line-height:1.9;color:var(--muted);margin:0;}
.inline-tutorial-meta{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:15px;margin-top:24px;font-size:11px;color:#8f949f;}
.inline-tutorial-meta a{color:var(--blue);padding:8px 0;}
.inline-tutorial-meta a:hover{text-decoration:underline;text-underline-offset:4px;}
@media(max-width:700px){.tutorial-view{padding-top:32px;}.catalog-heading{margin-bottom:26px;}.catalog-heading h1{font-size:27px;margin-top:17px;}.catalog-heading>p{font-size:13px;}.inline-tutorial-card{grid-template-columns:1fr;padding:26px;gap:20px;border-radius:24px;}.inline-tutorial-icon{width:52px;height:52px;border-radius:15px;font-size:30px;}.inline-tutorial-content h2{font-size:21px;}.inline-tutorial-summary{font-size:13px;}}
.store-main:has(.tutorial-view:not([hidden])){align-items:start;}