.wf{background:var(--background)}.wf-hero{position:relative;display:flex;align-items:flex-end;min-height:min(88vh,860px);overflow:hidden;background:#000}.wf-hero-img{object-fit:cover;opacity:.8;transform:scale(1.04)}.wf-hero:after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(180deg,rgba(7,7,8,.55) 0,rgba(7,7,8,.1) 35%,rgba(7,7,8,.82) 75%,var(--background) 100%),linear-gradient(90deg,rgba(7,7,8,.72),transparent 62%)}.wf-hero-in{position:relative;z-index:2;width:100%;padding-top:clamp(96px,16vh,180px);padding-bottom:clamp(48px,8vh,96px)}.wf-gens{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:22px}.wf-gens a{display:inline-flex;align-items:center;height:34px;padding:0 14px;border:1px solid var(--kw-line-3);border-radius:999px;background:rgba(7,7,8,.45);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);font-size:13.5px;color:var(--kw-ink-2);transition:background-color .2s,color .2s,border-color .2s}.wf-gens a:hover{border-color:rgba(243,239,231,.5);color:var(--kw-ink)}.wf-gens a[aria-current=page]{border-color:var(--kw-ink);background:var(--kw-ink);color:#0b0b0c}.wf-h1{max-width:62rem;font-size:clamp(42px,5.4vw,92px)}.wf-lead{max-width:40rem;margin-top:20px}.wf-cta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:28px}.wf-hint{margin:14px 0 0;font-size:13px;color:var(--kw-mute)}.wf-hero-cap{position:absolute;z-index:2;right:var(--kw-gut);bottom:22px;max-width:300px;margin:0;font:400 11.5px/1.45 var(--font-mono-stack);text-align:right;color:rgba(243,239,231,.55)}.wf-why{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,300px),1fr));gap:14px;margin:clamp(28px,4vh,44px) 0 0;padding:0;list-style:none}.wf-why li{padding:22px;border:1px solid var(--kw-line);border-radius:18px;background:var(--kw-bg-1);font-size:14.5px;line-height:1.6;color:var(--kw-ink-2)}.wf-why b{display:block;margin-bottom:12px;font:400 40px/1 var(--font-display);color:var(--kw-warm)}.wf-nle{overflow:hidden;border:1px solid var(--kw-line-2);border-radius:22px;background:#09090b;box-shadow:0 50px 120px -50px rgba(0,0,0,.95)}.wf-nle-top{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);border-bottom:1px solid var(--kw-line)}.wf-mon{position:relative;aspect-ratio:16/10;border-right:1px solid var(--kw-line);background:#000}.wf-mon .kc-clip-media{position:absolute;inset:0}.wf-mon .kc-clip-media :is(img,video){position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.wf-mon .kc-clip-pause{position:absolute;z-index:3;right:12px;bottom:12px}.wf-mon-lbl,.wf-mon-tc{position:absolute;z-index:2;top:12px;padding:5px 8px;border-radius:5px;background:rgba(0,0,0,.6);font:500 12px/1 var(--font-mono-stack)}.wf-mon-tc{left:14px;color:var(--kw-warm)}.wf-mon-lbl{right:14px;max-width:55%;overflow:hidden;letter-spacing:.06em;white-space:nowrap;text-overflow:ellipsis;text-transform:uppercase;color:#fff}.wf-insp{display:flex;flex-direction:column;gap:12px;padding:20px 22px}.wf-insp-h{margin:0;font:500 12px/1 var(--font-mono-stack);letter-spacing:.12em;text-transform:uppercase;color:var(--kw-mute)}.wf-insp ol{display:grid;gap:10px;margin:0;padding:0;list-style:none}.wf-insp li{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--kw-line);border-radius:12px;transition:border-color .3s,background-color .3s}.wf-insp li.is-on{border-color:var(--tone);background:color-mix(in srgb,var(--tone) 8%,transparent)}.wf-insp b{display:block;font-size:14px;font-weight:500;line-height:1.35;color:var(--kw-ink)}.wf-insp small{font-size:12.5px;color:var(--kw-mute)}.wf-tracks{position:relative;padding:14px 18px 18px;font:500 11.5px/1 var(--font-mono-stack);color:var(--kw-mute)}.wf-ruler{position:relative;height:22px;margin-left:56px;border-bottom:1px solid var(--kw-line)}.wf-ruler span{position:absolute;top:0;transform:translateX(-50%)}.wf-ruler span:first-child{transform:none}.wf-ruler span:last-child{transform:translateX(-100%)}.wf-trk{display:grid;grid-template-columns:56px minmax(0,1fr);align-items:center;height:40px;margin-top:8px}.wf-lane{position:relative;height:100%;border-radius:8px;background:rgba(243,239,231,.02)}.wf-blk{position:absolute;top:4px;bottom:4px;display:flex;align-items:center;overflow:hidden;padding:0 10px;border-radius:7px;background:linear-gradient(90deg,var(--tone),color-mix(in srgb,var(--tone) 70%,#fff));font:500 12px/1 var(--font-sans),sans-serif;white-space:nowrap;text-overflow:ellipsis;color:#0b0b0c}.wf-blk-src{background:linear-gradient(90deg,#3b3b44,#2b2b31);color:var(--kw-ink-2)}.wf-blk-out{background:linear-gradient(90deg,#f3efe7,#fff)}.wf-ph{position:absolute;z-index:3;top:8px;bottom:6px;left:calc(74px + (100% - 92px) * var(--ph, .58));width:2px;background:var(--kw-warm);box-shadow:0 0 12px var(--kw-warm)}.wf-ph:before{content:"";position:absolute;top:-6px;left:-5px;border:6px solid transparent;border-top:6px solid var(--kw-warm)}.wf-note{margin:12px 2px 0;font-size:12.5px;color:var(--kw-faint)}.wf-set{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:14px;margin:clamp(28px,4vh,44px) 0 0;padding:0;list-style:none}.wf-set li>:is(a,div){display:flex;flex-direction:column;gap:10px;height:100%;padding:22px;border:1px solid var(--kw-line-2);border-radius:18px;background:var(--kw-bg-2);transition:border-color .3s}.wf-set li>a:hover{border-color:var(--tone,var(--kw-line-3))}.wf-set-sym{align-self:flex-start;min-width:40px;height:36px;font-size:15px}.wf-set b{font-size:16.5px;font-weight:500;line-height:1.35;color:var(--kw-ink)}.wf-set-r{font-size:14px;line-height:1.6;color:var(--kw-mute)}.wf-set-go{display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding-top:6px;font-size:13.5px;font-weight:500;color:var(--kw-teal)}.wf-set-go svg{width:15px;height:15px}.wf-lvc{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.wf-lvc>div{padding:24px;border:1px solid var(--kw-line);border-radius:20px;background:var(--kw-bg-1)}.wf-lvc>.wf-lvc-local{border-color:rgba(45,212,191,.45);background:linear-gradient(160deg,rgba(45,212,191,.08),transparent 55%),var(--kw-bg-1)}.wf-lvc h2{margin:0 0 10px;font:400 28px/1.1 var(--font-display);color:var(--kw-ink)}.wf-lvc p{margin:0;font-size:14.5px;line-height:1.65;color:var(--kw-ink-2)}.wf-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:28px;margin:clamp(28px,4vh,44px) 0 0;padding:0;list-style:none}.wf-step-no{display:block;margin-bottom:12px;font:italic 400 40px/1 var(--font-display);color:var(--kw-warm)}.wf-steps h3{margin:0 0 6px;font-size:18px;font-weight:500;line-height:1.35;color:var(--kw-ink)}.wf-steps p{margin:0;font-size:15px;line-height:1.65;color:var(--kw-mute)}.wf-overview .kw-lead{max-width:46rem;margin-top:18px}.wf-more{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,180px),1fr));gap:10px;margin:clamp(28px,4vh,44px) 0 0;padding:0;list-style:none}.wf-more a{position:relative;display:flex;align-items:flex-end;aspect-ratio:4/5;overflow:hidden;padding:14px;border:1px solid var(--kw-line-2);border-radius:16px;isolation:isolate;font:400 22px/1.15 var(--font-display);color:var(--kw-ink)}.wf-more a img{z-index:-2;object-fit:cover;opacity:.75;transition:transform .8s var(--kw-ease),opacity .3s}.wf-more a:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,transparent 40%,rgba(7,7,8,.9))}.wf-more a:hover img{transform:scale(1.06);opacity:.95}.wf-cross-h{margin:32px 0 12px;font:500 12px/1.4 var(--font-mono-stack);letter-spacing:.1em;text-transform:uppercase;color:var(--kw-mute)}.wf-chips{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}.wf-chips a{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 14px;border:1px solid var(--kw-line-2);border-radius:999px;font-size:13.5px;color:var(--kw-ink-2);transition:border-color .2s,color .2s}.wf-chips a:hover{border-color:var(--kw-teal);color:var(--kw-ink)}.wf-chips svg{width:14px;height:14px}.wf-faq{display:grid;grid-template-columns:minmax(0,.7fr) minmax(0,1.3fr);gap:24px 56px;align-items:start}.wf-faq dl{margin:0;border-top:1px solid var(--kw-line)}.wf-faq dl>div{padding:22px 0;border-bottom:1px solid var(--kw-line)}.wf-faq dt{font:400 clamp(21px,1.9vw,27px)/1.25 var(--font-display);letter-spacing:-.01em;color:var(--kw-ink)}.wf-faq dd{margin:10px 0 0;font-size:15.5px;line-height:1.7;color:var(--kw-ink-2)}.wf-tail.has-sticky{padding-bottom:128px}.wf-rel{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,250px),1fr));gap:12px;margin:26px 0 0;padding:0;list-style:none}.wf-rel a{display:flex;flex-direction:column;gap:10px;height:100%;padding:18px 18px 20px;border:1px solid var(--kw-line);border-radius:16px;background:var(--kw-bg-1);transition:border-color .3s,transform .5s var(--kw-ease)}.wf-rel a:hover{border-color:var(--kw-line-2);transform:translateY(-3px)}.wf-rel-sym{min-width:42px;height:38px;font-size:16px}.wf-doc-mark,.wf-rel-sym{align-self:flex-start}.wf-rel b{font-weight:500;line-height:1.35;color:var(--kw-ink)}.wf-rel span:not(.kw-sym){font-size:13.5px;line-height:1.55;color:var(--kw-mute)}.wf-guides-title{margin-top:clamp(56px,8vh,88px)}.wf-foot{max-width:48rem;margin:36px 0 0;font-size:14.5px;line-height:1.7;color:var(--kw-ink-2)}.wf-foot a{color:var(--kw-teal);text-decoration:underline;text-decoration-color:rgba(45,212,191,.35);text-underline-offset:4px}.wf-tm{margin:36px 0 0;padding-top:18px;border-top:1px solid var(--kw-line);font-size:12px;line-height:1.6;color:var(--kw-faint)}html:is([lang=zh-Hans],[lang=zh-Hant],[lang=ja],[lang=ko]) .wf-h1{font-size:clamp(32px,4vw,64px)}html:is([lang=zh-Hans],[lang=zh-Hant],[lang=ja],[lang=ko]) :is(.wf-faq dt,.wf-lvc h2,.wf-more a){font-size:clamp(18px,1.5vw,22px);font-weight:500;line-height:1.4}html:is([lang=zh-Hans],[lang=zh-Hant],[lang=ja],[lang=ko]) :is(.wf-insp-h,.wf-cross-h,.wf-mon-lbl){letter-spacing:.04em}html:is([lang=zh-Hans],[lang=zh-Hant],[lang=ja],[lang=ko]) :is(.wf-step-no){font-style:normal}@media (max-width:1100px){.wf-faq,.wf-nle-top{grid-template-columns:minmax(0,1fr)}.wf-mon{border-right:0;border-bottom:1px solid var(--kw-line)}}@media (max-width:760px){.wf-lvc{grid-template-columns:minmax(0,1fr)}.wf-hero-cap{display:none}.wf-ruler{margin-left:44px}.wf-trk{grid-template-columns:44px minmax(0,1fr)}.wf-ph{left:calc(62px + (100% - 80px) * var(--ph, .58))}}@media (prefers-reduced-motion:reduce){.wf-chips a,.wf-gens a,.wf-insp li,.wf-more a img,.wf-rel a{transition:none}.wf-more a:hover img,.wf-rel a:hover{transform:none}}