/* Visual system: monochrome surfaces, one lime accent, 12px corners.
   Layers: sticky header 10; mobile CTA 20; toast 40; native dialogs top layer. */
:root{color-scheme:light;--bg:oklch(.992 0 0);--surface:oklch(.968 0 0);--ink:oklch(.195 .003 120);--muted:oklch(.46 .005 120);--line:oklch(.876 .003 120);--card:oklch(.992 0 0);--dark:oklch(.178 .004 120);--dark-muted:oklch(.74 .005 120);--lime:oklch(.902 .187 125);--lime-ink:oklch(.19 .03 125);--radius:12px;--ease:cubic-bezier(.22,1,.36,1)}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]){color-scheme:dark;--bg:oklch(.19 .003 120);--surface:oklch(.23 .003 120);--ink:oklch(.96 .002 120);--muted:oklch(.73 .005 120);--line:oklch(.36 .003 120);--card:oklch(.225 .003 120)}}
:root[data-theme="dark"]{color-scheme:dark;--bg:oklch(.19 .003 120);--surface:oklch(.23 .003 120);--ink:oklch(.96 .002 120);--muted:oklch(.73 .005 120);--line:oklch(.36 .003 120);--card:oklch(.225 .003 120)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 "Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;-webkit-font-smoothing:antialiased}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button{color:inherit}button:disabled{cursor:not-allowed}a,button,input,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible,[tabindex="0"]:focus-visible{outline:3px solid oklch(.62 .17 126);outline-offset:5px}h1,h2,h3,p{margin:0}h1,h2,h3{text-wrap:balance}p{text-wrap:pretty}h2{font-size:clamp(30px,3.2vw,42px);line-height:1.4;letter-spacing:-.035em;font-weight:750}h3{line-height:1.45}img{display:block;max-width:100%}[hidden]{display:none!important}.wrap{width:min(1200px,calc(100% - 80px));margin-inline:auto}.section{padding:100px 0}.skip-link{position:fixed;top:-80px;left:16px;z-index:40;padding:10px 16px;background:var(--lime);color:var(--lime-ink)}.skip-link:focus{top:10px}.notice{background:var(--surface);font-size:12px;color:var(--muted);border-bottom:1px solid var(--line)}.notice-inner{min-height:34px;display:flex;justify-content:space-between;align-items:center;gap:15px}.notice a{font-size:12px}.notice a:hover{text-decoration:underline}.header{position:sticky;top:0;z-index:10;background:var(--bg);border-bottom:1px solid var(--line)}.nav-row{height:82px;display:flex;align-items:center;justify-content:space-between;gap:32px}.brand{display:inline-flex;align-items:center;gap:14px;flex-shrink:0}.desktop-nav{display:flex;gap:32px;align-items:center;font-size:14px}.desktop-nav>a{padding:10px 0;position:relative}.desktop-nav>a:after{content:"";position:absolute;left:0;right:100%;bottom:3px;height:2px;background:var(--ink);transition:right .25s var(--ease)}.desktop-nav>a:hover:after{right:0}.nav-actions{display:flex;align-items:center;gap:18px}.theme-toggle{border:0;background:none;width:36px;height:40px;font-size:23px;line-height:1}.button{display:inline-flex;align-items:center;justify-content:center;gap:26px;min-height:54px;padding:14px 24px;border-radius:7px;font-size:15px;font-weight:700;line-height:1.4;transition:transform .2s var(--ease),background .2s;white-space:nowrap;border:1px solid transparent}.button:hover{transform:translateY(-2px)}.button:active{transform:translateY(0)}.button>span{font:24px/1 Arial,sans-serif}.button-small{min-height:42px;padding:10px 18px;font-size:14px;gap:20px}.button-small>span{font-size:20px}.button-dark{background:var(--ink);color:var(--bg)}.button-dark:hover{background:color-mix(in oklch,var(--ink),var(--bg) 14%)}.button-lime{background:var(--lime);color:var(--lime-ink)}.button-lime:hover{background:oklch(.94 .14 125)}.menu-toggle{display:none}.mobile-menu{display:none}
.hero{color:oklch(.97 .002 120);background:var(--dark);overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:20px;align-items:center;padding-top:64px;padding-bottom:56px;min-height:658px}.hero-copy{position:relative;z-index:1}.hero-label{font-size:13px;color:var(--dark-muted);display:flex;align-items:center;gap:10px;margin-bottom:24px}.label-mark{display:inline-flex;align-items:center;justify-content:center;color:var(--lime);font:22px/1 Arial,sans-serif}.hero h1{font-size:clamp(38px,4.3vw,59px);line-height:1.27;font-weight:750;letter-spacing:-.035em}.hero-rate{color:var(--lime);font:800 clamp(68px,7.5vw,96px)/1.12 Arial,sans-serif;letter-spacing:-.055em;white-space:nowrap}.percent{font-size:.6em;letter-spacing:-.06em}.hero-description{color:var(--dark-muted);line-height:1.9;margin:23px 0 28px;font-size:16px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.button-hero-secondary{border-color:oklch(.4 .003 120);color:oklch(.95 0 0);background:transparent}.button-hero-secondary:hover{background:oklch(.28 .003 120)}.invite-inline{display:flex;align-items:center;gap:18px;font-size:12px;margin-top:22px;color:var(--dark-muted)}.invite-inline strong{font-size:13px;color:oklch(.94 .002 120);letter-spacing:.04em}.invite-inline button{border:0;border-bottom:1px solid oklch(.45 0 0);padding:0 0 2px;color:var(--dark-muted);background:none;font-size:12px}.invite-inline button:disabled{opacity:.6}.hero-terms{font-size:11px;line-height:1.8;color:var(--dark-muted);max-width:480px;margin-top:16px}.hero-visual{position:relative;align-self:center;min-width:0;margin-right:-35px}.hero-art{width:100%;height:auto;aspect-ratio:1/1;object-fit:cover;object-position:91% center;mask-image:linear-gradient(to right,transparent 0%,black 11%,black 94%,transparent 100%)}.visual-caption{display:flex;align-items:center;justify-content:space-between;margin:0 38px;padding-top:18px;border-top:1px solid oklch(.37 .002 120);font-size:14px;color:oklch(.84 .004 120)}.caption-arrow{color:var(--lime);font:32px/1 Arial,sans-serif}.art-disclaimer{font-size:10px;color:var(--dark-muted);margin:8px 38px 0}.hero-bottom{border-top:1px solid oklch(.31 .003 120)}.trust-row{min-height:72px;display:flex;justify-content:space-between;align-items:center;gap:20px;font-size:13px;color:oklch(.8 .004 120)}.trust-row>span{display:flex;gap:12px;align-items:center}.trust-row b{color:var(--lime);font:20px/1 Arial,sans-serif}
.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:42px}.section-heading>p{max-width:390px;color:var(--muted);font-size:15px;line-height:1.9;margin-bottom:5px}.benefit-grid{display:grid;grid-template-columns:.9fr 1.25fr;gap:24px}.rebate-card,.welcome-card{border-radius:var(--radius);padding:36px}.rebate-card{background:var(--lime);color:var(--lime-ink);position:relative}.card-label{font-size:13px;font-weight:600}.rebate-number{display:flex;align-items:baseline;gap:7px;margin:20px 0 16px;line-height:1}.rebate-number .up-to{align-self:center;font-size:16px;margin-right:4px}.rebate-number strong{font:700 94px/.95 Arial,sans-serif;letter-spacing:-6px}.rebate-number>span:last-child{font:700 42px/1 Arial,sans-serif}.rebate-card h3{font-size:26px;margin-bottom:14px}.rebate-card>p:not(.card-note){font-size:15px;max-width:350px;line-height:1.8}.text-link{display:inline-flex;align-items:center;gap:20px;font-size:14px;font-weight:650;padding:8px 0}.text-link>span{font:22px/1 Arial,sans-serif;transition:transform .2s var(--ease)}.text-link:hover>span{transform:translate(3px,-3px)}.text-link:hover{text-decoration:underline;text-underline-offset:5px}.rebate-card>.text-link{margin-top:16px}.card-note{border-top:1px solid oklch(.68 .12 125);padding-top:18px;margin-top:20px;font-size:11px;line-height:1.8;max-width:360px}.welcome-card{background:var(--surface)}.welcome-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.outline-tag{font-size:11px;border:1px solid var(--line);padding:3px 9px;border-radius:4px;color:var(--muted)}.welcome-card h3{font-size:29px;letter-spacing:-.02em;margin:28px 0 13px}.welcome-card>p{color:var(--muted);font-size:15px;max-width:470px}.reward-list{list-style:none;padding:0;margin:24px 0 15px}.reward-list li{display:flex;justify-content:space-between;gap:16px;padding:11px 0;font-size:13px;border-bottom:1px solid var(--line)}.reward-list li>span:first-child{font-weight:650;white-space:nowrap}.reward-list li>span:last-child{color:var(--muted);text-align:right}.benefit-footnote{color:var(--muted);font-size:12px;line-height:1.9;margin-top:20px}
.calculator-section{background:var(--surface);padding:68px 0}.calculator-layout{display:grid;grid-template-columns:.78fr 1.25fr;gap:85px;align-items:center}.section-tag{font-size:13px;display:block;color:var(--muted);margin-bottom:15px}.calculator-copy h2{font-size:34px}.calculator-copy>p{font-size:14px;color:var(--muted);max-width:290px;margin:17px 0 14px}.calculator{background:var(--card);padding:32px;border-radius:var(--radius)}.calculator-fields{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}.calculator label{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12px;font-weight:600;margin-bottom:12px}.calculator label>span{font-size:11px;color:var(--muted);font-weight:400}.calculator label>output{font:700 18px/1 Arial,sans-serif}.calculator input[type="number"]{width:100%;height:48px;padding:10px 12px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--ink);font:600 21px/1.3 Arial,sans-serif}.calculator input[aria-invalid="true"]{border-color:oklch(.52 .17 28)}.calculator input[type="range"]{width:100%;height:20px;margin:15px 0 0;accent-color:var(--ink);cursor:pointer}.range-labels{display:flex;justify-content:space-between;font-size:10px;color:var(--muted)}.calculator-results{display:grid;grid-template-columns:1fr 1fr;gap:30px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}.calculator-results>div>span{display:block;font-size:12px;color:var(--muted);margin-bottom:8px}.calculator-results strong{font:650 36px/1.2 Arial,sans-serif;letter-spacing:-1px}.calculator-results small{font-size:11px;letter-spacing:0;font-weight:400}.calculator-results>div:first-child strong{color:oklch(.4 .11 130)}:root[data-theme="dark"] .calculator-results>div:first-child strong{color:var(--lime)}@media(prefers-color-scheme:dark){:root:not([data-theme="light"]) .calculator-results>div:first-child strong{color:var(--lime)}}#calculator-note{font-size:11px;color:var(--muted);line-height:1.85;margin-top:20px}.field-error{font-size:11px;line-height:1.6;color:oklch(.51 .17 28);margin-top:8px}
.guide-layout{display:grid;grid-template-columns:.84fr 1.25fr;gap:65px;align-items:start}.step-tabs{display:flex;flex-direction:column;gap:5px}.step-tab{display:flex;text-align:left;align-items:center;gap:20px;min-height:105px;padding:20px;background:transparent;border:1px solid transparent;border-bottom-color:var(--line);border-radius:0;width:100%;transition:background .25s var(--ease)}.step-tab[aria-selected="true"]{border-color:var(--line);border-radius:8px;background:var(--surface)}.step-number{font:600 17px/1 Arial,sans-serif;color:var(--muted);align-self:flex-start;padding-top:7px}.step-tab strong{font-size:18px;display:block;font-weight:650}.step-tab small{font-size:12px;color:var(--muted);display:block;margin-top:4px}.step-tab .step-arrow{font:24px/1 Arial,sans-serif;margin-left:auto;opacity:0}.step-tab[aria-selected="true"] .step-arrow{opacity:1}.step-panel{border-radius:var(--radius);background:var(--surface);padding:36px;min-height:402px}.step-panel-label{font-size:12px;color:var(--muted)}.step-panel h3{font-size:27px;margin-top:13px;margin-bottom:14px}.step-panel>p{color:var(--muted);font-size:14px;line-height:1.9}.domain-check{margin:24px 0;background:var(--bg);padding:17px 20px;border-radius:6px}.domain-check>span{font-size:10px;color:var(--muted);display:block}.domain-check>strong{font:600 19px/2 Arial,sans-serif;overflow-wrap:anywhere}.domain-check small{display:block;font-size:10px;color:var(--muted);line-height:1.7}.step-panel .button{font-size:14px;min-height:48px;padding:12px 20px}.step-checklist{font-size:13px;padding-left:20px;line-height:2.2;margin:24px 0 26px}
.download-section{background:var(--dark);color:oklch(.97 .002 120);padding:78px 0}.download-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:95px;align-items:center}.download-copy .section-tag{color:var(--lime);font-size:12px}.download-copy h2{font-size:40px}.download-copy>p{font-size:14px;line-height:1.9;color:var(--dark-muted);margin-top:20px}.download-footer-note{display:flex;align-items:center;gap:14px;margin-top:27px;font-size:11px;color:var(--dark-muted)}.download-footer-note>span:first-child{color:var(--lime);font:25px/1 Arial,sans-serif}.download-options{display:flex;flex-direction:column;gap:15px}.download-option{display:flex;align-items:center;gap:18px;border:1px solid oklch(.37 .003 120);border-radius:10px;padding:22px 24px;transition:border-color .2s,background .2s}.download-option:hover{border-color:var(--lime);background:oklch(.22 .003 120)}.os-icon{font:650 18px/1 Arial,sans-serif;min-width:42px;height:42px;display:flex;align-items:center;justify-content:center;border-radius:8px;background:oklch(.95 0 0);color:var(--dark)}.android-icon{background:var(--lime);color:var(--lime-ink);font-size:24px}.download-option strong{font:650 20px/1.4 Arial,sans-serif}.download-option small{display:block;color:var(--dark-muted);font-size:11px;margin-top:5px}.download-arrow{font:25px/1 Arial,sans-serif;margin-left:auto}.download-options>p{font-size:11px;color:var(--dark-muted);line-height:1.9;margin-top:1px}
.faq-layout{display:grid;grid-template-columns:.78fr 1.25fr;gap:85px}.faq-layout h2{font-size:36px}.faq-layout>div:first-child>p{color:var(--muted);font-size:14px;line-height:1.9;max-width:240px;margin:19px 0}.faq-list{border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:22px 0;cursor:pointer;font-size:15px;font-weight:600}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary>span{font:26px/1 Arial,sans-serif;font-weight:300;color:var(--muted);transition:transform .25s var(--ease)}.faq-list details[open] summary>span{transform:rotate(45deg)}.faq-answer{font-size:13px;color:var(--muted);line-height:1.95;padding:0 30px 22px 0}.closing{background:var(--surface);padding:52px 0}.closing-inner{display:flex;justify-content:space-between;align-items:center;gap:40px}.closing-inner>div>span{font-size:12px;color:var(--muted)}.closing h2{font-size:30px;margin:8px 0 12px}.closing p{font-size:13px;color:var(--muted)}.closing .button{flex-shrink:0}
.footer{padding:50px 0 24px}.footer-top{display:flex;align-items:center;justify-content:space-between;gap:30px;margin-bottom:30px}.footer-top>div{display:flex;gap:24px;font-size:12px}.footer-top button{background:none;border:0;padding:0;font:inherit;cursor:pointer}.footer-top a:hover,.footer-top button:hover{text-decoration:underline;text-underline-offset:5px}.disclosure-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;padding:26px 0 28px;border-block:1px solid var(--line)}.disclosure-grid h3{font-size:11px;font-weight:650;margin-bottom:8px}.disclosure-grid p{font-size:11px;color:var(--muted);line-height:1.9}.footer-bottom{display:flex;justify-content:space-between;gap:25px;font-size:10px;color:var(--muted);padding-top:20px}.mobile-cta{display:none}dialog{position:fixed;border:0;border-radius:var(--radius);background:var(--bg);color:var(--ink);padding:38px;width:min(470px,calc(100% - 32px));max-height:calc(100dvh - 40px);overflow:auto}dialog::backdrop{background:oklch(.12 0 0 / .72)}dialog h2{font-size:27px;line-height:1.4;margin-bottom:16px;padding-right:14px}dialog p{color:var(--muted);font-size:14px;line-height:1.9;margin-bottom:18px}.dialog-close{position:absolute;top:10px;right:10px;border:0;background:transparent;width:36px;height:36px;font:28px/1 Arial,sans-serif}.dialog-symbol{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:var(--lime);color:var(--lime-ink);font:30px/1 Arial,sans-serif;border-radius:8px;margin-bottom:22px}dialog .dialog-note{font-size:12px;background:var(--surface);padding:12px 15px;border-radius:6px}dialog .button{width:100%;margin-top:8px}.toast{position:fixed;left:50%;bottom:25px;transform:translate(-50%,20px);padding:11px 22px;border-radius:8px;background:var(--ink);color:var(--bg);z-index:40;opacity:0;pointer-events:none;font-size:13px;transition:opacity .2s,transform .2s;max-width:calc(100% - 32px);text-align:center}.toast.visible{opacity:1;transform:translate(-50%,0)}.noscript-note{padding:15px;text-align:center;background:var(--surface);font-size:13px}
@media(min-width:1100px) and (prefers-reduced-motion:no-preference){.hero-copy{animation:hero-enter .75s var(--ease) both}.hero-visual{animation:art-enter 1.1s var(--ease) both}@keyframes hero-enter{from{transform:translateY(20px)}to{transform:translateY(0)}}@keyframes art-enter{from{transform:translate(25px,5px)}to{transform:translate(0)}}}
@media(max-width:1100px){.wrap{width:calc(100% - 56px)}.desktop-nav{gap:22px}.nav-row{gap:18px}.nav-actions{gap:10px}.hero-grid{gap:0;min-height:610px}.hero h1{font-size:46px}.hero-rate{font-size:82px}.hero-actions .button{padding:14px 19px;font-size:13px;gap:15px}.hero-visual{margin-right:-15px}.calculator-layout,.faq-layout{gap:50px}.download-grid{gap:50px}.guide-layout{gap:35px}.section{padding:80px 0}}
@media(max-width:900px){.desktop-nav{display:none}.nav-row{height:72px}.menu-toggle{display:flex;border:0;background:none;width:35px;height:40px;flex-direction:column;gap:6px;justify-content:center;align-items:center}.menu-toggle>span{display:block;width:19px;height:1.5px;background:var(--ink);transition:transform .2s}.menu-toggle[aria-expanded="true"]>span:first-child{transform:translateY(3.75px) rotate(45deg)}.menu-toggle[aria-expanded="true"]>span:last-child{transform:translateY(-3.75px) rotate(-45deg)}.mobile-menu:not([hidden]){display:grid;grid-template-columns:1fr 1fr;padding:5px 28px 18px;gap:6px}.mobile-menu a{padding:8px 12px;font-size:14px}.hero h1{font-size:39px}.hero-rate{font-size:70px}.hero-grid{padding-top:42px;padding-bottom:42px}.hero-description{font-size:14px}.hero-actions{gap:10px}.hero-actions .button{padding:13px 16px;gap:15px;min-height:48px}.hero-terms{font-size:10px}.hero-art{aspect-ratio:.86}.visual-caption{margin-inline:22px;font-size:12px}.art-disclaimer{margin-inline:22px}.section-heading h2{font-size:34px}.section-heading>p{font-size:13px}.rebate-card,.welcome-card{padding:28px}.welcome-card h3{font-size:25px}.rebate-card h3{font-size:24px}.calculator-layout,.faq-layout{grid-template-columns:.8fr 1.2fr;gap:32px}.calculator{padding:25px}.calculator-fields,.calculator-results{gap:20px}.calculator-results strong{font-size:30px}.guide-layout{grid-template-columns:.85fr 1.15fr;gap:25px}.step-tab{gap:14px;padding:18px 14px}.step-tab strong{font-size:16px}.step-tab small{font-size:11px}.step-panel{padding:28px}.step-panel h3{font-size:24px}.download-grid{gap:35px}.download-copy h2{font-size:35px}.download-option{padding:20px;gap:14px}.download-option strong{font-size:18px}.faq-layout h2{font-size:31px}.closing h2{font-size:27px}.closing-inner{gap:25px}.footer-top{align-items:flex-start}}
@media(max-width:680px){html{scroll-padding-top:84px}.wrap{width:calc(100% - 40px)}.notice-inner{min-height:29px;font-size:10px;justify-content:center}.notice-inner>a{display:none}.nav-row{height:64px;gap:14px}.brand{gap:10px}.nav-actions{gap:5px}.nav-actions .button-small{display:none}.theme-toggle{width:33px;font-size:22px}.mobile-menu:not([hidden]){padding-inline:18px}.hero-grid{display:flex;flex-direction:column;align-items:stretch;padding-top:38px;padding-bottom:22px;gap:3px}.hero-label{font-size:11px;margin-bottom:22px}.hero h1{font-size:clamp(35px,9.8vw,52px);line-height:1.25;letter-spacing:-.035em}.hero-rate{font-size:clamp(68px,19.5vw,94px)}.hero-description{font-size:14px;margin:20px 0 23px;line-height:1.85}.hero-actions{display:grid;grid-template-columns:1.18fr 1fr;gap:10px}.hero-actions .button{font-size:12px;padding:13px 10px;gap:10px}.hero-actions .button>span{font-size:20px}.invite-inline{font-size:11px;margin-top:20px;gap:16px}.invite-inline strong,.invite-inline button{font-size:11px}.hero-terms{font-size:10px;line-height:1.8;margin-top:14px;max-width:100%}.hero-visual{margin:10px -9px 0}.hero-art{width:100%;height:280px;aspect-ratio:auto;object-position:right 48%;mask-image:linear-gradient(to bottom,transparent 0%,black 9%,black 86%,transparent 100%)}.visual-caption{margin:0 10px;padding-top:12px;font-size:12px}.caption-arrow{font-size:24px}.art-disclaimer{margin:5px 10px 0;font-size:9px}.trust-row{padding-block:15px;flex-wrap:wrap;gap:11px 20px;min-height:0;font-size:10px}.trust-row>span{gap:7px}.trust-row b{font-size:15px}.section{padding:58px 0}.section-heading{display:block;margin-bottom:29px}.section-heading h2{font-size:30px}.section-heading>p{font-size:13px;margin-top:16px;line-height:1.85}.section-heading>p br{display:none}.benefit-grid{grid-template-columns:1fr;gap:16px}.rebate-card,.welcome-card{padding:27px}.rebate-number{margin-top:22px}.rebate-number strong{font-size:83px}.rebate-card h3{font-size:23px}.rebate-card>p:not(.card-note),.welcome-card>p{font-size:14px}.rebate-card>p:not(.card-note){max-width:100%}.card-note{max-width:100%;font-size:10px}.welcome-card h3{font-size:25px;margin-top:25px}.card-label{font-size:12px}.outline-tag{font-size:10px}.reward-list li{font-size:11px;gap:10px}.text-link{font-size:13px}.benefit-footnote{font-size:10px;margin-top:17px}.calculator-section{padding:49px 0}.calculator-layout{grid-template-columns:1fr;gap:24px}.calculator-copy h2{font-size:30px}.section-tag{font-size:11px;margin-bottom:12px}.calculator-copy>p{max-width:100%;font-size:13px;margin-bottom:8px}.calculator-copy .text-link{padding-top:0}.calculator{padding:23px}.calculator-fields{gap:22px}.calculator label{font-size:11px;gap:4px}.calculator label>span{font-size:9px}.calculator label>output{font-size:16px}.calculator input[type="number"]{font-size:20px}.calculator-results{margin-top:24px;padding-top:20px;gap:18px}.calculator-results strong{font-size:30px}.calculator-results small{font-size:9px}.calculator-results>div>span{font-size:11px}.range-labels{font-size:9px}#calculator-note{font-size:10px;margin-top:17px}.guide-layout{grid-template-columns:1fr;gap:23px}.step-tabs{gap:5px}.step-tab{min-height:82px;padding:17px 18px;gap:20px}.step-tab strong{font-size:16px}.step-tab small{font-size:11px}.step-tab .step-arrow{opacity:.4}.step-panel{min-height:0;padding:27px}.step-panel h3{font-size:25px}.step-panel>p{font-size:13px}.step-panel .button{width:100%;min-height:49px}.domain-check{margin:22px 0}.download-section{padding:52px 0}.download-grid{grid-template-columns:1fr;gap:30px}.download-copy h2{font-size:34px}.download-copy>p{font-size:13px;line-height:1.9}.download-copy>p br{display:none}.download-footer-note{margin-top:22px;font-size:10px}.download-option{padding:20px 22px}.download-option strong{font-size:19px}.download-option small{font-size:11px}.download-options>p{font-size:10px}.faq-layout{grid-template-columns:1fr;gap:26px}.faq-layout h2{font-size:31px}.faq-layout>div:first-child>p{max-width:100%;margin:14px 0 5px;font-size:13px}.faq-list summary{padding:19px 0;font-size:13px;gap:18px}.faq-answer{font-size:12px;padding-right:16px}.closing{padding:39px 0}.closing-inner{flex-direction:column;align-items:flex-start;gap:23px}.closing h2{font-size:26px;margin-top:10px}.closing p{font-size:12px}.closing .button{width:100%;justify-content:space-between;padding-inline:22px;font-size:14px}.footer{padding:35px 0 100px}.footer-top{flex-direction:column;gap:25px;margin-bottom:23px}.footer-top>div{font-size:11px;gap:23px}.disclosure-grid{grid-template-columns:1fr;gap:21px;padding-block:23px}.disclosure-grid p{font-size:10px;line-height:1.9}.footer-bottom{flex-direction:column;gap:5px;font-size:9px;padding-top:16px}.mobile-cta{position:fixed;z-index:20;bottom:0;left:0;right:0;padding:11px 20px max(11px,env(safe-area-inset-bottom));display:flex;align-items:center;justify-content:space-between;gap:15px;background:var(--bg);border-top:1px solid var(--line)}.mobile-cta>div{display:flex;flex-direction:column;gap:0}.mobile-cta strong{font-size:16px;line-height:1.4}.mobile-cta>div>span{font-size:10px;color:var(--muted)}.mobile-cta .button{font-size:13px;min-height:43px;padding:11px 23px;gap:25px}.mobile-cta .button>span{font-size:21px}.toast{bottom:90px;font-size:12px}dialog{padding:31px 25px}dialog h2{font-size:25px}dialog p{font-size:13px}}
@media(max-width:360px){.wrap{width:calc(100% - 32px)}.hero-actions .button{font-size:11px;gap:7px}.hero h1{font-size:34px}.hero-rate{font-size:67px}.calculator{padding:20px}.calculator-fields{gap:16px}.calculator label{font-size:10px}.calculator-results strong{font-size:27px}.reward-list li{font-size:10px}.notice-inner{font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.button:hover{transform:none}}
.calculator-results strong{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px}.calculator-results output{max-width:100%;overflow-wrap:anywhere}
.faq-answer a{text-decoration:underline;text-underline-offset:3px;color:var(--ink)}.faq-list details[id]{scroll-margin-top:24px}
.domain-check a{text-decoration:underline;text-underline-offset:3px;color:var(--ink)}.domain-check strong{overflow-wrap:anywhere}
.brand .brand-mark{display:block;width:44px;height:44px;flex:none;border-radius:10px}
.brand-wordmark{display:flex;flex-direction:column;gap:5px;white-space:nowrap}
.brand-wordmark>b{font:800 24px/1.12 "Microsoft YaHei","PingFang SC",sans-serif;letter-spacing:.4px}
.brand-wordmark>span{font-size:10px;line-height:1.4;color:var(--muted);letter-spacing:.3px}
.platform-label{display:flex;align-items:center;gap:20px}
.platform-label .okx-logo{display:block;width:80px;height:24px;object-fit:contain;flex:none}
.platform-label>span{padding-left:20px;border-left:1px solid oklch(.43 .003 120);line-height:1.6}
.download-platform{margin-bottom:25px}
.download-platform .section-tag{margin:0}
@media(max-width:680px){.brand{gap:10px}.brand .brand-mark{width:36px;height:36px;border-radius:8px}.brand-wordmark{gap:4px}.brand-wordmark>b{font-size:21px}.brand-wordmark>span{font-size:9px;letter-spacing:0}.platform-label{gap:14px}.platform-label .okx-logo{width:67px;height:20px}.platform-label>span{padding-left:14px}.download-platform{margin-bottom:21px}.download-platform .section-tag{font-size:11px}}
@media(min-width:901px){.hero-grid{padding-top:46px;padding-bottom:46px}.hero-art{height:500px;aspect-ratio:auto}}
@media(max-width:680px){.calculator-results.is-large strong{font-size:18px;letter-spacing:-.5px}.domain-check strong{font-size:16px;letter-spacing:0}}