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150);--container:1440px;--gutter:64px;--gap-columns:32px;--section-gap-s:120px;--section-gap:144px;--section-gap-l:176px;--z-base:1;--z-raised:10;--z-dropdown:100;--z-sticky:200;--z-sticky-nav:300;--z-modal:400;--z-toast:500;--z-tooltip:600;--color-paper:oklch(97.6% .011 88);--color-paper-2:oklch(96.5% .02 160);--color-paper-3:oklch(93% .036 160);--color-ink:oklch(21% .025 170);--color-ink-2:oklch(31% .02 170);--color-muted:oklch(49% .024 165);--color-rule:oklch(86.5% .022 140);--color-accent:oklch(50% .13 160);--color-accent-deep:oklch(42% .11 162);--color-accent-soft:oklch(88% .08 160);--color-accent-ink:oklch(99% .006 160);--color-focus:oklch(45% .14 160);--p-mon:oklch(85% .052 22);--p-tue:oklch(87.5% .058 64);--p-wed:oklch(91.5% .064 98);--p-thu:oklch(86.5% .075 160);--p-fri:oklch(87% .048 210);--p-sat:oklch(84% .045 270);--p-sun:oklch(84% .048 322);--light:oklch(99.4% .016 84);--glint:oklch(100% 0 0);--font-display:var(--font-body);--font-body:"PingFang SC", "Microsoft YaHei", 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var(--color-paper-2,var(--color-paper)), var(--color-paper-3,var(--color-paper)));position:relative;overflow:hidden}[data-slot]>img{object-fit:cover;z-index:1;width:100%;height:100%;position:absolute;inset:0}[data-slot]:has(>img)>:not(img):not([data-keep]){display:none!important}@media (width<=60rem){:root{--gutter:24px;--section-gap-s:80px;--section-gap:96px;--section-gap-l:120px}}@media (width<=40rem){:root{--gutter:16px;--section-gap-s:56px;--section-gap:72px;--section-gap-l:96px;--gap-columns:16px}}@media (prefers-reduced-motion:reduce){:not(.keep-motion),:not(.keep-motion):before,:not(.keep-motion):after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}[data-slot]>img{filter:saturate(.85)contrast(.94)}:root{--color-paper:oklch(99.2% .004 210);--color-paper-2:oklch(96.8% .022 210);--color-paper-3:oklch(93% .035 210);--color-ink:oklch(24% .105 270);--color-ink-2:oklch(35% .08 270);--color-muted:oklch(48% .055 265);--color-rule:oklch(86% .025 250);--color-accent:oklch(52% .095 205);--color-accent-deep:oklch(44% .085 205);--color-accent-soft:oklch(92% .04 205);--color-accent-ink:oklch(99.6% .002 210);--color-focus:oklch(40% .13 250);--color-transparent:transparent;--color-shadow:oklch(24% .04 250/.07);--font-body:"PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--font-display:var(--font-body);--font-outlier:var(--font-body);--container:1440px;--gutter:64px;--gap-columns:64px;--radius-card:24px;--radius-input:14px;--tracking-display:-.035em;--text-display:clamp(3rem, 6.5vw, 5.75rem);--text-section:clamp(2rem, 3.5vw, 3.25rem)}body{font-synthesis:none}a{text-decoration:none}button,a,summary{-webkit-tap-highlight-color:var(--color-transparent)}a:hover{color:var(--color-accent-deep)}:focus-visible{outline:3px solid 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minmax(0,1fr);align-items:center;display:grid}.hero h1{letter-spacing:-.045em;max-width:none;line-height:1.23}.hero-description{color:var(--color-muted);font-size:var(--text-lead);margin-top:var(--space-lg);line-height:1.8}.hero-figure{justify-self:start;width:100%;min-width:0;max-width:488px;margin:0}.product-mat{background:var(--color-paper-2);padding:var(--space-lg);border-radius:var(--radius-card)}.today-crop{aspect-ratio:1/1.05;border-radius:var(--radius-input);position:relative;overflow:clip}.today-crop img{width:100%;height:auto;position:absolute;inset:0;transform:translateY(-14.5%)}figcaption{color:var(--color-muted);font-size:var(--text-sm);padding-top:var(--space-md);text-align:center}figcaption span{font-size:var(--text-xs);margin-top:var(--space-2xs);display:block}.download-actions{gap:var(--space-md);margin-top:var(--space-xl);flex-wrap:wrap;display:flex}.button{gap:var(--space-sm);min-height:52px;padding:var(--space-sm) var(--space-lg);border:1px solid var(--color-transparent);border-radius:var(--radius-input);text-align:center;white-space:nowrap;transition:transform var(--dur-micro) var(--ease-out);justify-content:center;align-items:center;font-size:18px;font-weight:700;line-height:1.4;display:inline-flex}.button svg{flex-shrink:0}.button-primary{background:var(--color-accent);color:var(--color-accent-ink)}.button-primary:hover{background:var(--color-accent-deep);color:var(--color-accent-ink)}.button-secondary{border-color:var(--color-ink);color:var(--color-ink);background:var(--color-transparent)}.button-secondary:hover{background:var(--color-paper-2);color:var(--color-ink)}.button:active{transform:translateY(1px)}.hero .button{min-width:220px}.download-note{font-size:var(--text-sm);color:var(--color-muted);margin-top:var(--space-md)}@media (width>=1440px){.hero{min-height:656px}}@media (width<=70rem){:root{--gutter:40px;--gap-columns:40px}.hero h1{font-size:clamp(3rem,6.2vw,4.6rem)}.button{padding-inline:var(--space-md)}.hero 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h1{font-size:clamp(2.6rem,8vw,4rem)}.hero-description{margin-top:var(--space-lg);font-size:18px}.desktop-break{display:none}.hero-figure{width:100%;max-width:540px;margin-inline:auto}.download-actions{margin-top:var(--space-lg)}.hero .button{min-width:0}}@media (width<=25rem){:root{--gutter:20px}.button{gap:var(--space-xs);min-height:52px;font-size:16px}.download-actions{gap:var(--space-sm)}.product-mat{padding:var(--space-md)}}.feature-strip{padding-block:var(--space-xl);grid-template-columns:repeat(4,minmax(0,1fr));display:grid}.feature-strip a{gap:var(--space-xs);text-align:center;padding-inline:var(--space-lg);flex-direction:column;display:flex}.feature-strip a+a{border-left:1px solid var(--color-rule)}.feature-strip strong{font-size:var(--text-xl);font-weight:700}.feature-strip span{color:var(--color-muted);font-size:var(--text-md)}.section-space{padding-block:var(--space-3xl)}.section-copy h2,.practice-section h2,.section-heading h2,.download-band h2{line-height:1.3}.section-intro{color:var(--color-muted);font-size:var(--text-lead);margin-top:var(--space-lg)}.learning-section{align-items:center;gap:var(--gap-columns);grid-template-columns:minmax(0,1fr) minmax(0,1fr);display:grid}.plan-figure{margin:0}.plan-mat{background:var(--color-paper-2);padding:var(--space-xl);border-radius:var(--radius-card)}.plan-crop{aspect-ratio:1/1.8;border-radius:var(--radius-input);width:100%;max-width:340px;margin-inline:auto;position:relative;overflow:clip}.plan-crop img{width:100%;height:auto;position:absolute;inset:0;transform:translateY(-3%)}.learning-steps{padding-left:var(--space-xl);margin-block:var(--space-xl);list-style:decimal-leading-zero}.learning-steps li{padding-left:var(--space-sm);padding-block:var(--space-lg);border-bottom:1px solid var(--color-rule)}.learning-steps li:first-child{padding-top:0}.learning-steps li::marker{color:var(--color-accent);font-weight:700}.learning-steps h3{font-size:var(--text-lg);line-height:1.5}.learning-steps p{color:var(--color-muted);margin-top:var(--space-xs)}.text-link{color:var(--color-accent-deep);text-underline-offset:6px;padding-block:var(--space-xs);text-decoration:underline;display:inline-block}.text-link:hover{color:var(--color-ink)}.practice-section{background:var(--color-paper-2)}.practice-columns{gap:var(--gap-columns);margin-top:var(--space-2xl);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.practice-columns article{border-top:1px solid var(--color-rule);padding-top:var(--space-xl)}.practice-columns h3{font-size:var(--text-xl);line-height:1.5}.practice-columns p{max-width:30em;color:var(--color-muted);margin-block:var(--space-lg)}.section-heading{gap:var(--space-lg);margin-bottom:var(--space-xl);justify-content:space-between;align-items:end;display:flex}.section-heading .text-link{flex-shrink:0}.faq-list{border-top:1px solid var(--color-rule)}.faq-list details{border-bottom:1px solid var(--color-rule);scroll-margin-top:var(--space-lg)}.faq-list summary{justify-content:space-between;align-items:center;gap:var(--space-lg);padding-block:var(--space-lg);font-size:var(--text-lg);cursor:pointer;list-style:none;display:flex}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:hover{color:var(--color-accent-deep)}.faq-list summary span{flex-shrink:0;font-size:28px}.faq-list details[open] summary span{transform:rotate(45deg)}.faq-list details p{color:var(--color-muted);padding-bottom:var(--space-lg);max-width:50em;line-height:1.8}.download-band{background:var(--color-paper-2);padding-block:var(--space-2xl)}.download-band-inner{justify-content:space-between;align-items:center;gap:var(--gap-columns);display:flex}.download-band h2{font-size:clamp(2rem,3vw,2.75rem)}.download-band p{color:var(--color-muted);margin-top:var(--space-md)}.download-band .button{flex-shrink:0}.subpage{padding-top:var(--space-2xl);padding-bottom:var(--space-3xl)}.page-heading{margin-bottom:var(--space-2xl)}.page-heading h1,.not-found h1{font-size:clamp(2.6rem,5vw,4.5rem);line-height:1.25}.page-heading p,.not-found p{color:var(--color-muted);font-size:var(--text-lead);margin-top:var(--space-lg)}.platform-grid{gap:var(--gap-columns);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.platform-section{padding-top:var(--space-xl);border-top:1px solid var(--color-rule);scroll-margin-top:var(--space-lg)}.platform-section h2{align-items:center;gap:var(--space-md);font-size:36px;display:flex}.platform-section h2 svg{width:32px;height:32px}.platform-section>p{color:var(--color-muted);margin-top:var(--space-md)}.release-state{margin-block:var(--space-xl);padding-block:var(--space-lg)}.availability{font-size:var(--text-lg);font-weight:700}.release-state>p+p{margin-top:var(--space-xs);color:var(--color-muted)}.release-state .button{margin-top:var(--space-lg)}.button:disabled{opacity:.55;cursor:not-allowed;transform:none}.button-primary:disabled:hover{background:var(--color-accent)}.button-secondary:disabled:hover{background:var(--color-transparent)}.install-action{margin-block:var(--space-xl)}.install-guide h3{font-size:var(--text-lg);line-height:1.5}.install-guide ol{padding-left:var(--space-lg);margin-block:var(--space-lg)}.install-guide li{margin-bottom:var(--space-sm)}.install-guide>p{color:var(--color-muted);font-size:var(--text-sm)}.help-notice{border-top:1px solid var(--color-rule);margin-top:var(--space-2xl);padding-top:var(--space-xl)}.help-notice h2{font-size:28px;line-height:1.4}.help-notice p{color:var(--color-muted);margin-top:var(--space-md)}.help-notice a{margin-top:var(--space-lg);margin-right:var(--space-lg)}.not-found{min-height:60vh}.not-found .button{margin-top:var(--space-xl)}.site-footer{padding-top:var(--space-2xl);padding-bottom:var(--space-lg)}.footer-top{justify-content:space-between;align-items:flex-start;gap:var(--space-xl);display:flex}.footer-top p{color:var(--color-muted);margin-top:var(--space-md)}.footer-top nav{gap:var(--space-lg);padding-top:var(--space-sm);flex-wrap:wrap;align-items:center;display:flex}.footer-top nav a{white-space:nowrap;padding-block:var(--space-xs)}.footer-bottom{gap:var(--space-lg);border-top:1px solid var(--color-rule);padding-top:var(--space-lg);margin-top:var(--space-2xl);color:var(--color-muted);font-size:var(--text-sm);flex-wrap:wrap;display:flex}.footer-bottom>a:last-child{margin-left:auto}@media (width<=59.99rem){.section-space{padding-block:var(--space-2xl)}.feature-strip{row-gap:var(--space-xl);grid-template-columns:repeat(2,minmax(0,1fr))}.feature-strip a{padding-inline:var(--space-xs)}.feature-strip a:nth-child(3){border-left:0}.feature-strip strong{font-size:var(--text-lg)}.feature-strip span{font-size:var(--text-sm)}.learning-section{gap:var(--space-xl);grid-template-columns:minmax(0,1fr)}.section-copy{grid-row:1}.plan-figure{width:100%;max-width:540px;margin-inline:auto}.plan-mat{padding:var(--space-lg)}.practice-columns{margin-top:var(--space-xl);gap:var(--space-xl);grid-template-columns:minmax(0,1fr)}.practice-columns article{padding-top:var(--space-lg)}.section-heading{display:block}.section-heading .text-link{margin-top:var(--space-md)}.download-band-inner{align-items:flex-start;gap:var(--space-lg);flex-direction:column}.platform-grid{gap:var(--space-2xl);grid-template-columns:minmax(0,1fr)}.subpage{padding-top:var(--space-xl);padding-bottom:var(--space-2xl)}.page-heading{margin-bottom:var(--space-xl)}.footer-top{gap:var(--space-lg);flex-direction:column}.footer-bottom{margin-top:var(--space-xl)}.faq-list summary{font-size:18px}}@media (width<=22rem){.hero .download-actions{flex-direction:column}.feature-strip strong{font-size:18px}.feature-strip span{font-size:13px}}