/* Shared foundations and complete demo routes retained from the existing frontend. */
h1,h2,h3,p{margin:0}img,svg{max-width:100%}button,a{touch-action:manipulation}[hidden]{display:none!important}
.button{width:100%}.button-small{width:auto}summary:focus-visible{outline:2px solid var(--blue);outline-offset:3px}
#app{min-height:62vh}.eyebrow{font-size:12px;font-weight:650;letter-spacing:2px;color:#acb5ca}
.journey{display:grid;grid-template-columns:repeat(3,1fr);margin:40px 0 0;padding:27px 24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.journey>div{display:grid;grid-template-columns:35px 1fr;column-gap:10px;padding-left:23px}.journey>div+div{border-left:1px solid var(--line);padding-left:40px}.step-number{grid-row:span 2;color:#77829d;font-size:12px;font-weight:600;line-height:2.1}.journey h3{font-size:14px;font-weight:650}.journey p{font-size:12px;color:#acb5ca;margin-top:3px}.home-help{display:grid;grid-template-columns:1fr 1.5fr;gap:65px;padding:60px 22px 75px}.home-help h2{font-size:27px;line-height:1.5;letter-spacing:-.6px;margin:14px 0 19px}.text-link{font-size:14px;color:var(--blue);display:inline-flex;align-items:center;gap:18px}.faq-list details{border-bottom:1px solid var(--line)}.faq-list details:first-child{border-top:1px solid var(--line)}summary{cursor:pointer;list-style:none;position:relative;padding:19px 30px 19px 0;font-size:14px;font-weight:550}summary::-webkit-details-marker{display:none}summary::after{content:"+";position:absolute;right:4px;top:16px;font-size:20px;color:#acb5ca;font-weight:400}details[open] summary::after{content:"−"}.faq-list details p{font-size:14px;color:#acb5ca;line-height:1.9;padding:0 25px 22px 0}.site-footer{max-width:1120px;margin:auto;padding:31px 4px 25px;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:flex-start;gap:20px;flex-wrap:wrap}.footer-brand{font-size:16px}.site-footer p{font-size:12px;color:#acb5ca;margin-top:10px}.footer-links{display:flex;gap:24px;font-size:13px;color:#acb5ca;padding-top:6px}.footer-note{width:100%;font-size:11px;color:#acb5ca;margin-top:8px}
.page-heading{padding:43px 0 30px}.page-heading .back-link{display:inline-block;color:#acb5ca;font-size:13px;margin-bottom:19px}.page-heading h1{font-size:clamp(27px,3vw,36px);letter-spacing:-1px;line-height:1.4;margin:10px 0}.page-heading>p:last-child{font-size:14px;color:#acb5ca}.panel{border:1px solid #30394f;background:#101728;border-radius:21px;padding:30px;box-shadow:0 7px 24px #33333305}.checkout-layout{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(280px,1fr);align-items:start;gap:28px;margin-bottom:65px}.section-heading{display:flex;gap:12px;align-items:center}.section-heading h2,.panel-title{font-size:18px;letter-spacing:-.3px}.form-number{width:27px;height:27px;display:grid;place-content:center;border-radius:8px;background:#182034;color:#acb5ca;font-size:12px;font-weight:650}.section-copy{font-size:13px;color:#acb5ca;margin-top:12px}.section-spaced{border-top:1px solid var(--line);padding-top:26px;margin-top:28px}.choice-fieldset{margin:20px 0 0;border:0;padding:0;min-width:0}.choice-fieldset legend{font-size:13px;color:#acb5ca;margin-bottom:10px;font-weight:550}.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.choice{display:flex;gap:10px;align-items:center;cursor:pointer;padding:13px 12px;border:1px solid #30394f;border-radius:11px;min-height:75px;transition:background .2s,border .2s}.choice:has(input:checked){border-color:#acb5ca;background:#182034;box-shadow:0 0 0 1px #a0a0a022}.choice input,.agreement input{accent-color:var(--blue);width:16px;height:16px;flex-shrink:0;margin:0}.choice strong{font-size:13px;display:block;font-weight:550}.choice small{font-size:11px;display:block;color:#acb5ca;line-height:1.6;margin-top:3px}.field-label{display:flex;justify-content:space-between;align-items:center;margin:22px 0 8px;font-size:13px;font-weight:550;color:#acb5ca}.field-label>span{font-size:11px;color:#acb5ca;font-weight:400}.form-input{width:100%;border:1px solid #30394f;background:#101728;padding:12px 13px;border-radius:9px;color:#f1f4fb;font-size:14px;min-height:46px;line-height:1.5;min-width:0}.form-input::placeholder{color:#acb5ca}.form-input[readonly]{background:#182034;color:#acb5ca}.field-note{font-size:12px;color:#acb5ca;margin-top:9px;line-height:1.7}.form-input:focus{border-color:#acb5ca}.payment-choice{gap:9px}.alipay{color:#1680d9;background:#e9f6ff}.wechat{color:#238a53;background:#182034}.inline-note{margin:20px 0;padding:13px 15px;background:#182034;border-radius:10px;font-size:12px;line-height:1.85;color:#acb5ca}.plain-list{padding:0 0 0 17px;color:#acb5ca;font-size:13px;margin:14px 0 22px;display:grid;gap:7px}.agreement{display:flex;gap:10px;align-items:flex-start;font-size:12px;color:#acb5ca;line-height:1.8;margin-bottom:22px;cursor:pointer}.agreement input{margin-top:3px}.form-error{font-size:13px;color:#bf4545;margin-bottom:13px}.unavailable-box{padding:20px;background:#182034;border:1px dashed #30394f;border-radius:12px}.unavailable-box strong{font-size:15px}.unavailable-box p{font-size:13px;color:#acb5ca;margin:6px 0 17px}.order-summary{padding:28px;background:#182034;border:1px solid #30394f;border-radius:21px}.summary-label{font-size:13px;color:#acb5ca}.summary-product{display:flex;gap:14px;align-items:center;margin:24px 0}.product-mark{display:grid;place-content:center;flex-shrink:0;width:45px;height:45px;border:1px solid #30394f;background:#30394f;border-radius:12px;color:#acb5ca;font-weight:650;font-size:22px}.summary-product h2{font-size:17px;letter-spacing:-.4px}.summary-product p{font-size:12px;color:#acb5ca;margin-top:4px}.order-summary dl{padding:22px 0;margin:0;border-top:1px solid #30394f;display:grid;gap:15px}.order-summary dl div,.detail-fields div{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px}.order-summary dt,.detail-fields dt{color:#acb5ca}.order-summary dd,.detail-fields dd{margin:0;color:#cad1e0;text-align:right}.summary-total{border-top:1px solid #30394f;padding-top:20px;display:flex;justify-content:space-between;align-items:center;gap:12px}.summary-total span{font-size:13px;color:#acb5ca}.summary-total strong{font-size:29px;letter-spacing:-1px}.summary-footnote{font-size:12px;color:#acb5ca;line-height:1.8;margin:10px 0 22px}.order-summary .text-link{font-size:12px}.payment-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:70px;max-width:900px;margin:0 auto 70px}.payment-panel{text-align:center}.payment-brand{display:inline-block;border-radius:7px;padding:3px 12px;font-size:13px;font-weight:600;margin-bottom:23px}.muted{color:#acb5ca;font-size:13px}.payment-amount{font-size:42px;line-height:1.5;font-weight:700;letter-spacing:-1px;margin:2px 0 24px}.payment-amount span{font-size:29px}.qr-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;max-width:220px;aspect-ratio:1;margin:0 auto 25px;border:1px dashed #30394f;border-radius:14px;background:repeating-linear-gradient(-45deg,#182034,#182034 6px,#182034 6px,#182034 7px);padding:20px}.qr-label{font-size:15px;font-weight:550;color:#acb5ca}.qr-placeholder p{font-size:12px;color:#acb5ca}.qr-placeholder small{font-size:11px;color:#77829d;line-height:1.8;margin-top:8px}.payment-order{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:18px 0;font-size:12px;color:#acb5ca;gap:15px}.payment-order strong{color:#acb5ca}.payment-panel .button+.button{margin-top:12px}.payment-hint{padding-top:55px}.payment-hint h2,.support-aside h2{font-size:25px;line-height:1.55;margin:12px 0 25px;letter-spacing:-.7px}.payment-hint ol,.support-aside ol{padding-left:20px;display:grid;gap:24px;color:#acb5ca}.payment-hint li,.support-aside li{padding-left:8px;font-size:13px}.payment-hint li strong,.support-aside li strong{font-size:14px;font-weight:550;color:#acb5ca}.payment-hint li p,.support-aside li p{font-size:13px;color:#acb5ca;margin-top:4px}.orders-panel{margin-bottom:75px;padding-bottom:10px}.search-row{display:flex;gap:13px;max-width:630px}.search-row button{white-space:nowrap;min-width:98px}.order-tabs{display:flex;gap:8px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:17px;margin-top:25px}.order-tabs button{font-size:13px;padding:7px 15px;border:0;border-radius:8px;background:transparent;color:#acb5ca}.order-tabs button:hover{background:#182034}.order-tabs button.selected{color:#acb5ca;background:#182034;font-weight:600}.order-row{display:flex;gap:18px;align-items:center;min-height:103px;padding:20px 7px;border-bottom:1px solid #182034;transition:background .15s}.order-row:last-child{border-bottom:0}.order-row:hover{background:#101728}.order-product-icon{height:42px;width:42px;display:grid;place-content:center;flex-shrink:0;font-size:24px;background:#182034;border:1px solid #30394f;color:#acb5ca;border-radius:10px}.order-info{flex:1;min-width:0}.order-info strong{font-size:15px;display:block;line-height:1.5;font-weight:550}.order-info>span{display:block;font-size:11px;color:#acb5ca;margin-top:7px;overflow-wrap:anywhere}.order-amount{font-size:14px;display:grid;text-align:right;min-width:90px;color:#acb5ca}.order-amount small{color:#acb5ca;font-size:10px}.status-tag{display:inline-flex;align-items:center;justify-content:center;padding:4px 10px;border-radius:7px;white-space:nowrap;font-size:11px;line-height:1.8;font-weight:550;min-width:66px}.status-tag.blue{color:#acb5ca;background:#182034}.status-tag.green{color:#4a9270;background:#182034}.status-tag.amber{color:#aa8034;background:#fff7e6}.status-tag.red{color:#b86c6a;background:#182034}.status-tag.muted{color:#acb5ca;background:#182034}.row-arrow{color:#77829d;margin-left:12px}.empty-state{padding:60px 20px;text-align:center;display:flex;align-items:center;flex-direction:column;gap:15px;margin-bottom:30px}.empty-symbol{background:#182034;color:#acb5ca;width:57px;height:57px;border-radius:17px;display:grid;place-content:center;font-size:28px}.empty-state h2{font-size:20px;margin-top:5px}.empty-state p{font-size:14px;color:#acb5ca;margin-bottom:8px}.detail-layout{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(255px,1fr);gap:26px;margin-bottom:70px}.detail-top{display:flex;justify-content:space-between;align-items:center;gap:15px}.detail-top .field-note{margin:0 0 4px}.detail-top h2{font-size:18px}.timeline{display:grid;grid-template-columns:repeat(3,1fr);margin:32px 0 30px;padding:28px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.timeline-step{display:flex;flex-direction:column;position:relative;align-items:center;text-align:center;gap:7px;padding:0 4px}.timeline-step::before{content:"";position:absolute;left:-50%;right:50%;top:14px;height:1px;background:#30394f;z-index:0}.timeline-step:first-child::before{display:none}.timeline-step>span{width:28px;height:28px;background:#182034;display:grid;place-content:center;border:1px solid #30394f;border-radius:50%;font-size:11px;color:#77829d;position:relative;z-index:1}.timeline-step.done>span{background:#182034;border-color:#77829d;color:#acb5ca}.timeline-step strong{font-size:12px;font-weight:550;color:#acb5ca;margin-top:3px}.timeline-step.done strong{color:#acb5ca}.timeline-step small{font-size:10px;color:#acb5ca}.detail-product{display:flex;gap:14px;align-items:center}.detail-product>div{flex:1}.detail-product h3{font-size:16px}.detail-product p{font-size:12px;color:#acb5ca;margin-top:3px}.detail-product>strong{font-size:19px;color:#cad1e0;white-space:nowrap}.detail-fields{margin:25px 0 26px;display:grid;gap:16px}.detail-actions{display:flex;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:22px;margin-top:27px}.scenario-panel{padding:24px}.scenario-panel .eyebrow{font-size:10px}.scenario-panel h3{font-size:16px;margin-top:12px}.scenario-panel .field-label{font-size:12px}.side-help{padding:26px 8px}.side-help h3{font-size:16px}.side-help p{font-size:13px;color:#acb5ca;margin:8px 0 15px}.side-help .text-link{font-size:13px}.delivery-box{border-top:1px solid var(--line);padding-top:23px}.delivery-box h3{font-size:16px}.delivery-box>p{font-size:13px;color:#acb5ca;margin-top:9px}.demo-delivery{padding:17px;background:#182034;border:1px dashed #30394f;border-radius:11px;margin:17px 0;display:grid;gap:8px;overflow-wrap:anywhere}.demo-delivery>span{font-size:12px;color:#acb5ca}.demo-delivery code{font-size:14px;color:#acb5ca;word-break:break-all}.demo-delivery small{font-size:11px;color:#acb5ca;line-height:1.8}.failure-box{background:#182034;color:#acb5ca;padding:17px;border-radius:11px;font-size:13px}.failure-box p{font-size:12px;margin-top:7px}.help-layout{display:grid;grid-template-columns:235px 1fr;gap:30px;margin-bottom:70px}.help-aside{padding:20px 12px;color:#acb5ca;font-size:13px}.help-aside .button{margin-top:13px}.help-aside hr{margin:24px 0;border:0;border-top:1px solid var(--line)}.help-aside .text-link{font-size:13px;margin-top:13px}.help-faq .faq-list details:first-child{border-top:0}.help-faq .faq-list details:last-child{border-bottom:0}.help-faq{padding:12px 30px}.support-aside{padding:25px 12px}.support-aside .side-help{border-top:1px solid var(--line);margin-top:30px;padding:26px 0 0}.ticket-result{max-width:690px;margin:0 auto 75px;padding:40px;text-align:center}.result-icon{display:grid;place-content:center;margin:0 auto 20px;width:56px;height:56px;background:#182034;color:#acb5ca;font-size:26px;border-radius:50%}.ticket-result>h2{font-size:23px}.ticket-result>p{font-size:13px;color:#acb5ca;margin:10px 0 25px}.ticket-copy{text-align:left;padding:19px 20px;border:1px solid #30394f;border-radius:12px}.ticket-copy strong{font-size:13px;color:#acb5ca}.ticket-copy p{margin-top:10px;font-size:14px;line-height:1.8;overflow-wrap:anywhere;white-space:pre-wrap}.ticket-result .detail-actions{justify-content:center}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:900px){.checkout-layout{grid-template-columns:minmax(0,1.5fr) minmax(245px,1fr);gap:20px}.panel{padding:23px}.choice-grid{grid-template-columns:1fr}.order-summary{padding:23px}.detail-layout{grid-template-columns:minmax(0,1fr) 245px;gap:20px}.payment-layout{gap:35px}.help-layout{grid-template-columns:200px 1fr;gap:20px}.row-arrow{margin-left:0}.order-row{gap:12px}.order-amount{min-width:74px}.summary-total strong{font-size:26px}}
@media(max-width:680px){.page-heading{padding:29px 3px 24px}.page-heading .back-link{margin-bottom:15px}.page-heading h1{font-size:29px;letter-spacing:-.7px}.page-heading>p:last-child{font-size:13px;line-height:1.85}.checkout-layout{display:flex;flex-direction:column;margin-bottom:45px}.order-summary{width:100%;order:-1;padding:23px}.summary-product{margin:16px 0}.order-summary dl{padding:17px 0;gap:11px}.summary-total{padding-top:16px}.summary-footnote{margin-bottom:12px}.checkout-form{width:100%}.checkout-layout>.panel{width:100%}.panel{padding:22px;border-radius:18px}.choice-grid{grid-template-columns:1fr 1fr;gap:9px}.choice{padding:13px 10px;gap:7px}.choice strong{font-size:12px}.choice small{font-size:10px}.choice input{width:15px;height:15px}.payment-choice{gap:6px;flex-wrap:wrap}.form-input{font-size:16px}.field-label{font-size:13px}.agreement{font-size:12px}.payment-layout{grid-template-columns:1fr;gap:20px;margin-bottom:45px}.payment-hint{padding:20px 10px}.payment-panel{padding:25px}.orders-panel{margin-bottom:45px;padding:20px 15px 8px}.search-row{gap:8px}.search-row .form-input{font-size:13px;padding:12px 10px}.search-row button{min-width:72px;font-size:12px;padding:9px 11px}.order-tabs{gap:4px;margin-top:20px;padding-bottom:13px}.order-tabs button{font-size:12px;padding:8px 10px}.order-row{display:grid;grid-template-columns:37px minmax(0,1fr) auto;gap:7px 10px;padding:19px 0;min-height:100px}.order-product-icon{width:34px;height:34px;font-size:21px;grid-row:1}.order-info strong{font-size:13px}.order-info>span{font-size:10px;margin-top:5px}.order-amount{font-size:13px;min-width:60px;align-self:start;padding-top:2px}.order-amount small{font-size:10px}.order-row .status-tag{grid-column:2;justify-self:start;font-size:10px;min-width:54px;padding:2px 9px}.row-arrow{grid-column:3;text-align:right;font-size:14px}.detail-layout{grid-template-columns:1fr;gap:20px;margin-bottom:45px}.detail-top h2{font-size:17px}.timeline{margin:25px 0;padding:23px 0}.timeline-step small{font-size:9px}.timeline-step strong{font-size:11px}.detail-product{gap:10px}.detail-product h3{font-size:15px}.detail-product>strong{font-size:17px}.detail-product .product-mark{width:38px;height:38px;border-radius:10px}.detail-fields div{font-size:12px}.detail-side{display:grid;grid-template-columns:1fr;gap:0}.scenario-panel{padding:22px}.side-help{padding:24px 8px 8px}.help-layout{grid-template-columns:1fr;gap:17px;margin-bottom:45px}.help-aside{display:none}.help-faq{padding:5px 21px}.support-aside{padding:12px 7px}.ticket-result{padding:25px;margin-bottom:45px}.ticket-result>h2{font-size:22px}.empty-state{padding:35px 12px}.empty-state h2{font-size:19px}}
@media(max-width:365px){.choice-grid{grid-template-columns:1fr}.hero h1{font-size:31px}.brand{font-size:16px}.plan{padding:23px}.order-row{column-gap:8px}.order-product-icon{display:none}.order-row{grid-template-columns:minmax(0,1fr) auto}.order-row .status-tag{grid-column:1}.row-arrow{grid-column:2}.search-row{flex-direction:column}.search-row button{align-self:flex-end}.detail-product>strong{font-size:15px}.detail-product h3{font-size:14px}.detail-product .product-mark{display:none}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.field-label,.choice-fieldset legend,.choice strong,.agreement,.plain-list,.order-tabs button,.choice.payment-choice strong{font-size:14px}.choice small,.timeline-step small,.order-info>span,.order-amount small{font-size:12px}.status-tag,.timeline-step strong,.detail-fields div,.detail-link,.button,.site-header nav a{font-size:14px}.hero-copy,.section-copy,.page-heading>p:last-child{font-size:15px}.plan-detail>p{font-size:14px}.choice{min-height:80px}.search-row .form-input{font-size:16px}.order-row .status-tag{font-size:13px}.detail-fields{row-gap:14px}.order-info>span{line-height:1.7}.timeline-step strong{font-size:13px}.timeline-step small{font-size:11px}
@media(max-width:640px){.hero-copy{font-size:14px}.button{font-size:14px}.choice-grid{grid-template-columns:1fr}.choice{min-height:68px}.search-row{flex-wrap:wrap}.search-row .form-input{flex:1;min-width:170px}.search-row button{min-height:46px;font-size:14px}.order-row{min-height:114px}.order-info strong{font-size:14px}.order-info>span{font-size:11px}.status-tag,.order-row .status-tag{font-size:12px}.timeline-step small{font-size:10px}.site-header nav a{font-size:13px}.detail-product h3{font-size:15px}.footer-links{font-size:14px}.field-label,.agreement,.plain-list{font-size:14px}.support-link{min-height:38px}}

@media(max-width:640px){.journey{grid-template-columns:1fr;gap:20px;padding:24px 0}.journey>div,.journey>div+div{border:0;padding:0;grid-template-columns:32px 1fr}.home-help{grid-template-columns:1fr;gap:24px;padding:36px 0}.home-help h2 br{display:none}.footer-links{width:100%;gap:24px}}