.support-page{--support-content:92rem;background:var(--paper);width:100%;overflow:clip}.support-page__hero{width:min(100%, var(--support-content));padding:clamp(5.5rem, 9vw, 9rem) var(--page-gutter) clamp(4.25rem, 7vw, 7rem);border-bottom:1px solid var(--line);margin:0 auto;display:grid}.support-page__back{width:fit-content;color:var(--muted);letter-spacing:.02em;transition:color .16s var(--ease-out), transform .16s var(--ease-out);align-items:center;gap:.55rem;margin-bottom:clamp(3rem,6vw,5.5rem);font-size:.76rem;font-weight:680;display:inline-flex}.support-page__back span{font-size:1rem;line-height:1}.support-page__label,.support-section__label{color:var(--gold);letter-spacing:.15em;text-transform:uppercase;margin:0;font-size:.72rem;font-weight:760}.support-page__hero h1{letter-spacing:-.065em;text-wrap:balance;max-width:68rem;margin:1.6rem 0 0;font-size:clamp(3.2rem,7vw,7rem);font-weight:630;line-height:.94}.support-page__lede{max-width:48rem;color:var(--muted);margin:2rem 0 0;font-size:clamp(1rem,1.5vw,1.28rem);line-height:1.75}html:lang(zh-CN) .support-page__hero h1{font-family:var(--font-cjk);letter-spacing:.035em;font-weight:600;line-height:1.14}html:lang(zh-CN) .support-page__lede{letter-spacing:.015em}.guide-grid{width:min(100%, var(--support-content));padding:0 var(--page-gutter) clamp(6rem, 10vw, 10rem);grid-template-columns:repeat(3,minmax(0,1fr));margin:0 auto;display:grid}.guide-grid__item{border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-width:0;min-height:22rem;transition:background-color .18s var(--ease-out), transform .15s var(--ease-out);align-content:space-between;gap:3rem;padding:clamp(1.5rem,2.6vw,2.5rem);display:grid}.guide-grid__item:nth-child(3n){border-right:0}.guide-grid__number{color:var(--gold);letter-spacing:.14em;font-size:.72rem;font-weight:760}.guide-grid__item h2{letter-spacing:-.045em;text-wrap:balance;max-width:18rem;margin:0;font-size:clamp(1.65rem,2.4vw,2.5rem);font-weight:620;line-height:1.08}html:lang(zh-CN) .guide-grid__item h2{font-family:var(--font-cjk);letter-spacing:.025em;font-weight:600;line-height:1.2}.guide-grid__item p{max-width:25rem;color:var(--muted);margin:1rem 0 0;font-size:.9rem}.guide-grid__open{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:1rem;padding-top:1.1rem;font-size:.75rem;font-weight:720;display:flex}.guide-grid__open span:last-child{font-size:1rem}.guide-document{width:min(100%, var(--support-content));padding:0 var(--page-gutter) clamp(6rem, 10vw, 10rem);gap:0;margin:0 auto;display:grid}.guide-section{border-bottom:1px solid var(--line);grid-template-columns:minmax(13rem,.45fr) minmax(0,1fr);gap:clamp(2rem,7vw,8rem);padding:clamp(4rem,8vw,8rem) 0;display:grid}.guide-section:last-child{border-bottom:0}.guide-section__index{color:var(--gold);letter-spacing:.14em;align-self:start;font-size:.72rem;font-weight:760;position:sticky;top:7rem}.guide-section__body{min-width:0}.guide-section h2{letter-spacing:-.05em;text-wrap:balance;max-width:48rem;margin:0;font-size:clamp(2rem,4.2vw,4rem);font-weight:620;line-height:1.04}html:lang(zh-CN) .guide-section h2,html:lang(zh-CN) .contact-section h2,html:lang(zh-CN) .authorization-section h2{font-family:var(--font-cjk);letter-spacing:.03em;font-weight:600;line-height:1.18}.guide-section__intro{max-width:52rem;color:var(--muted);margin:1.5rem 0 0;font-size:clamp(1rem,1.35vw,1.15rem);line-height:1.8}.guide-steps,.guide-notes,.contact-prepare{margin:2rem 0 0;padding:0;list-style:none}.guide-steps{counter-reset:guide-step}.guide-steps li{border-top:1px solid var(--line);counter-increment:guide-step;grid-template-columns:2.25rem minmax(0,1fr);gap:1rem;padding:1.15rem 0;display:grid}.guide-steps li:before{color:var(--gold);content:counter(guide-step, decimal-leading-zero);font-size:.72rem;font-weight:760}.guide-notes li{border-left:2px solid var(--gold);background:var(--canvas);color:var(--muted);padding:1rem 1.2rem;font-size:.88rem}.guide-section .media-frame{width:100%;margin-top:clamp(2.5rem,5vw,4.5rem)}.contact-layout,.authorization-body{width:min(100%, var(--support-content));padding:0 var(--page-gutter) clamp(6rem, 10vw, 10rem);margin:0 auto}.contact-direct{border-bottom:1px solid var(--line);grid-template-columns:minmax(18rem,.8fr) minmax(0,1.2fr);gap:clamp(3rem,8vw,9rem);padding:clamp(4.5rem,8vw,8rem) 0;display:grid}.contact-phone{align-content:start;gap:1.2rem;display:grid}.contact-phone__label{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-size:.75rem;font-weight:700}.contact-phone__number{letter-spacing:-.045em;overflow-wrap:anywhere;width:fit-content;transition:color .16s var(--ease-out), transform .15s var(--ease-out);font-size:clamp(1.65rem,3.4vw,3.25rem);font-weight:610;line-height:1.1}.contact-prepare{max-width:37rem}.contact-prepare li{border-top:1px solid var(--line);padding:1rem 0}.contact-privacy{color:var(--gold);margin:1.5rem 0 0;font-size:.86rem;font-weight:680}.contact-section,.authorization-section{border-bottom:1px solid var(--line);padding:clamp(4.5rem,8vw,8rem) 0}.contact-section:last-child,.authorization-section:last-child{border-bottom:0}.contact-section__head,.authorization-section__head{grid-template-columns:minmax(13rem,.45fr) minmax(0,1fr);gap:clamp(2rem,7vw,8rem);margin-bottom:clamp(3rem,6vw,5rem);display:grid}.contact-section h2,.authorization-section h2{letter-spacing:-.05em;text-wrap:balance;max-width:50rem;margin:0;font-size:clamp(2rem,4.2vw,4rem);font-weight:620;line-height:1.04}.contact-section__intro,.authorization-section__intro{max-width:46rem;color:var(--muted);margin:1rem 0 0}.qr-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(2rem,5vw,5rem);max-width:58rem;margin-left:auto;display:grid}.price-rows{margin:0}.price-row{border-top:1px solid var(--line);grid-template-columns:minmax(0,1fr) auto;align-items:baseline;gap:2rem;padding:clamp(1.3rem,2vw,1.8rem) 0;display:grid}.price-row:last-child{border-bottom:1px solid var(--line)}.price-row dt{min-width:0;font-size:clamp(1rem,1.4vw,1.2rem);font-weight:570}.price-row dd{letter-spacing:-.055em;margin:0;font-size:clamp(1.7rem,3vw,3rem);font-weight:620;line-height:1}.price-note{color:var(--muted);margin:1.5rem 0 0;font-size:.86rem}.currency-note{width:fit-content;color:var(--gold);letter-spacing:.12em;margin-bottom:1.5rem;font-size:.72rem;font-weight:760;display:inline-flex}.purchase-steps{counter-reset:purchase-step;margin:0;padding:0;list-style:none}.purchase-steps li{border-top:1px solid var(--line);counter-increment:purchase-step;grid-template-columns:3rem minmax(9rem,.42fr) minmax(0,1fr);gap:clamp(1rem,3vw,3rem);padding:1.6rem 0;display:grid}.purchase-steps li:before{color:var(--gold);content:counter(purchase-step, decimal-leading-zero);font-size:.72rem;font-weight:760}.purchase-steps strong{font-weight:650}.purchase-steps span{color:var(--muted)}.registered-email-note{border-left:2px solid var(--gold);background:var(--canvas);margin:2rem 0 0;padding:1.25rem 1.5rem;font-size:.92rem;font-weight:620}.support-cta{border:1px solid var(--line-strong);width:fit-content;transition:border-color .16s var(--ease-out), transform .15s var(--ease-out);border-radius:999px;align-items:center;gap:.6rem;margin-top:2rem;padding:.85rem 1.15rem;font-size:.78rem;font-weight:700;display:inline-flex}.guide-grid__item:active,.support-page__back:active,.contact-phone__number:active,.support-cta:active{transform:scale(.97)}@media (hover:hover) and (pointer:fine){.guide-grid__item:hover{background:var(--canvas)}.support-page__back:hover,.contact-phone__number:hover{color:var(--ink)}.support-page__back:hover{transform:translate(-.2rem)}.support-cta:hover{border-color:var(--ink)}}@media (width<=64rem){.guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.guide-grid__item:nth-child(3n){border-right:1px solid var(--line)}.guide-grid__item:nth-child(2n){border-right:0}.guide-section,.contact-section__head,.authorization-section__head{grid-template-columns:minmax(10rem,.32fr) minmax(0,1fr);gap:3rem}.contact-direct{grid-template-columns:1fr}}@media (width<=42rem){.support-page__hero{padding-top:4.5rem;padding-bottom:3.75rem}.support-page__hero h1{font-size:clamp(2.75rem,13vw,4.5rem)}html:lang(zh-CN) .support-page__hero h1{letter-spacing:.025em;font-size:clamp(2.55rem,11.5vw,4rem)}.guide-grid{grid-template-columns:1fr}.guide-grid__item,.guide-grid__item:nth-child(2n),.guide-grid__item:nth-child(3n){border-right:0;min-height:17.5rem}.guide-section,.contact-section__head,.authorization-section__head{grid-template-columns:1fr;gap:1.5rem}.guide-section__index{position:static}.guide-section h2,.contact-section h2,.authorization-section h2{font-size:clamp(2rem,10vw,3rem)}.qr-grid{grid-template-columns:1fr;gap:3rem;max-width:24rem;margin-left:auto;margin-right:auto}.price-row{gap:1rem}.price-row dd{white-space:nowrap}.purchase-steps li{grid-template-columns:2rem minmax(0,1fr)}.purchase-steps span{grid-column:2}}@media (prefers-reduced-motion:reduce){.support-page__back,.guide-grid__item,.contact-phone__number,.support-cta{transition:none}}