:root{color-scheme:dark;--kh-bg: #12131a;--kh-surface: #1a1c26;--kh-surface-raised: #232634;--kh-surface-sunken: #0e0f15;--kh-surface-hover: #262a39;--kh-border: #2e3244;--kh-border-strong: #6d7590;--kh-focus-ring: #7aa2ff;--kh-text: #e7e9ee;--kh-text-muted: #a8adbe;--kh-text-subtle: #858b9e;--kh-accent: #7aa2ff;--kh-accent-hover: #9ab8ff;--kh-accent-on: #0e1220;--kh-accent-subtle: #1e2740;--kh-accent-subtle-text: #a9c3ff;--kh-success: #4ec98a;--kh-warning: #e0a44a;--kh-warning-text: #eab76e;--kh-warning-subtle: #2b2216;--kh-danger: #f0707c;--kh-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--kh-font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--kh-radius: 10px;--kh-radius-lg: 16px;--kh-page: 1120px;--kh-gutter: 24px;--kh-shadow: 0 1px 2px rgb(0 0 0 / .28), 0 8px 24px rgb(0 0 0 / .22);--kh-shadow-lift: 0 2px 4px rgb(0 0 0 / .3), 0 18px 48px rgb(0 0 0 / .34)}:root[data-theme=light]{color-scheme:light;--kh-bg: #f7f7f9;--kh-surface: #ffffff;--kh-surface-raised: #ffffff;--kh-surface-sunken: #f0f0f4;--kh-surface-hover: #eceef3;--kh-border: #dfe1e8;--kh-border-strong: #83879c;--kh-focus-ring: #3355cc;--kh-text: #1b1c22;--kh-text-muted: #55596b;--kh-text-subtle: #767b8f;--kh-accent: #3355cc;--kh-accent-hover: #2a47ad;--kh-accent-on: #ffffff;--kh-accent-subtle: #e6ebfb;--kh-accent-subtle-text: #25409c;--kh-success: #1a7f4b;--kh-warning: #9a6300;--kh-warning-text: #7d5000;--kh-warning-subtle: #fdf1dc;--kh-danger: #c22a34;--kh-shadow: 0 1px 2px rgb(24 25 32 / .06), 0 8px 24px rgb(24 25 32 / .07);--kh-shadow-lift: 0 2px 4px rgb(24 25 32 / .08), 0 18px 48px rgb(24 25 32 / .12)}*,*:before,*:after{box-sizing:border-box}*{margin:0}html{scroll-behavior:smooth;scroll-padding-top:88px}body{background:var(--kh-bg);color:var(--kh-text);font-family:var(--kh-font);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}img,svg{display:block;max-width:100%}a{color:var(--kh-accent);text-decoration:none}a:hover{color:var(--kh-accent-hover);text-decoration:underline}button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}:focus-visible{outline:2px solid var(--kh-focus-ring);outline-offset:2px;border-radius:4px}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.kh-wrap{width:100%;max-width:var(--kh-page);margin-inline:auto;padding-inline:var(--kh-gutter)}.kh-section{padding-block:96px;border-top:1px solid var(--kh-border)}.kh-section--plain{border-top:none}.kh-section__eyebrow{font-size:.78rem;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--kh-accent-subtle-text);margin-bottom:12px}.kh-section__title{font-size:clamp(1.65rem,3.4vw,2.3rem);line-height:1.2;letter-spacing:-.02em;font-weight:650;max-width:22ch}.kh-section__lede{margin-top:16px;max-width:62ch;color:var(--kh-text-muted);font-size:1.05rem}.kh-reveal{opacity:1}.kh-reveal--armed{opacity:0;transform:translateY(14px);transition:opacity .52s cubic-bezier(.22,1,.36,1),transform .52s cubic-bezier(.22,1,.36,1)}.kh-reveal--shown{opacity:1;transform:none}.kh-header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--kh-bg) 86%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--kh-border)}.kh-header__inner{display:flex;align-items:center;gap:20px;height:64px}.kh-header__brand{display:flex;align-items:center;gap:10px;font-weight:640;letter-spacing:-.01em;color:var(--kh-text)}.kh-header__brand:hover{text-decoration:none;color:var(--kh-text)}.kh-header__nav{display:flex;gap:22px;margin-left:auto}.kh-header__nav a{color:var(--kh-text-muted);font-size:.93rem}.kh-header__nav a:hover{color:var(--kh-text);text-decoration:none}.kh-header__actions{display:flex;align-items:center;gap:10px;margin-left:auto}.kh-header__nav+.kh-header__actions{margin-left:22px}@media(max-width:880px){.kh-header__nav{display:none}}.kh-iconbutton{display:grid;place-items:center;width:36px;height:36px;border-radius:var(--kh-radius);border:1px solid var(--kh-border);color:var(--kh-text-muted);background:var(--kh-surface)}.kh-iconbutton:hover{color:var(--kh-text);background:var(--kh-surface-hover)}.kh-button{display:inline-flex;align-items:center;gap:9px;padding:11px 20px;border-radius:var(--kh-radius);font-weight:560;font-size:.96rem;border:1px solid transparent;transition:background-color .16s ease,border-color .16s ease,transform .16s ease}.kh-button:hover{text-decoration:none;transform:translateY(-1px)}.kh-button--primary{background:var(--kh-accent);color:var(--kh-accent-on)}.kh-button--primary:hover{background:var(--kh-accent-hover);color:var(--kh-accent-on)}.kh-button--ghost{background:var(--kh-surface);border-color:var(--kh-border-strong);color:var(--kh-text)}.kh-button--ghost:hover{background:var(--kh-surface-hover);color:var(--kh-text)}.kh-hero{position:relative;padding-block:88px 72px;overflow:hidden}.kh-hero__grid{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(var(--kh-border) 1px,transparent 1px),linear-gradient(90deg,var(--kh-border) 1px,transparent 1px);background-size:64px 64px;-webkit-mask-image:radial-gradient(120% 90% at 78% 8%,rgb(0 0 0 / .85),transparent 62%);mask-image:radial-gradient(120% 90% at 78% 8%,rgb(0 0 0 / .85),transparent 62%);opacity:.9}.kh-hero__inner{position:relative;display:grid;gap:44px;grid-template-columns:minmax(0,1fr)}.kh-hero__copy{max-width:62ch}.kh-hero__title{font-size:clamp(2.2rem,5.2vw,3.4rem);line-height:1.07;letter-spacing:-.033em;font-weight:680;max-width:19ch}.kh-hero__lede{margin-top:20px;font-size:1.14rem;color:var(--kh-text-muted);max-width:52ch}.kh-hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}.kh-hero__meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:22px;font-size:.87rem;color:var(--kh-text-subtle)}.kh-hero__meta span{display:inline-flex;align-items:center;gap:7px}.kh-hero__shot{border-radius:var(--kh-radius-lg);border:1px solid var(--kh-border);background:var(--kh-surface-sunken);box-shadow:var(--kh-shadow-lift);overflow:hidden}.kh-hero__shot img{width:100%;height:auto}.kh-notice{display:flex;gap:14px;padding:16px 18px;border-radius:var(--kh-radius);border:1px solid var(--kh-warning);background:var(--kh-warning-subtle);color:var(--kh-text)}.kh-notice__icon{flex:none;color:var(--kh-warning-text);margin-top:2px}.kh-notice strong{display:block;margin-bottom:3px;color:var(--kh-warning-text)}.kh-notice p{font-size:.93rem;color:var(--kh-text-muted)}.kh-notice--top{margin-top:40px}.kh-pitch{display:grid;gap:22px;grid-template-columns:repeat(auto-fit,minmax(min(250px,100%),1fr));margin-top:44px}.kh-pitch__item{padding:24px;border-radius:var(--kh-radius);border:1px solid var(--kh-border);background:var(--kh-surface)}.kh-pitch__item h3{font-size:1.02rem;font-weight:620;margin-bottom:8px}.kh-pitch__item p{color:var(--kh-text-muted);font-size:.95rem}.kh-spotlight{display:grid;gap:44px;margin-top:44px}.kh-spotlight__points{display:grid;gap:26px 40px;grid-template-columns:repeat(auto-fit,minmax(min(300px,100%),1fr))}.kh-spotlight__point{display:grid;grid-template-columns:auto minmax(0,1fr);gap:14px;align-items:start}.kh-spotlight__marker{width:9px;height:9px;margin-top:9px;border-radius:50%;background:var(--kh-accent)}.kh-spotlight__point h4{font-size:.98rem;font-weight:620;margin-bottom:3px}.kh-spotlight__point p{color:var(--kh-text-muted);font-size:.94rem}.kh-features{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(min(290px,100%),1fr));margin-top:44px}.kh-feature{padding:24px;border-radius:var(--kh-radius);border:1px solid var(--kh-border);background:var(--kh-surface);transition:border-color .18s ease,background-color .18s ease}.kh-feature:hover{border-color:var(--kh-border-strong);background:var(--kh-surface-raised)}.kh-feature h3{font-size:1rem;font-weight:620;margin-bottom:9px}.kh-feature p{color:var(--kh-text-muted);font-size:.93rem}.kh-arch{display:grid;gap:44px;margin-top:44px;grid-template-columns:minmax(0,1fr)}@media(min-width:900px){.kh-arch{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}.kh-arch__diagram{display:grid;gap:10px;padding:24px;border-radius:var(--kh-radius-lg);border:1px solid var(--kh-border);background:var(--kh-surface-sunken);font-family:var(--kh-font-mono);font-size:.84rem}.kh-arch__box{padding:16px 18px;border-radius:var(--kh-radius);border:1px solid var(--kh-border);background:var(--kh-surface)}.kh-arch__box strong{display:block;font-family:var(--kh-font);font-size:.95rem;margin-bottom:5px}.kh-arch__box span{color:var(--kh-text-subtle);line-height:1.55}.kh-arch__box--main{border-color:var(--kh-accent);background:var(--kh-accent-subtle)}.kh-arch__box--main strong{color:var(--kh-accent-subtle-text)}.kh-arch__bridge{display:flex;align-items:center;gap:12px;padding-inline:8px;color:var(--kh-text-subtle);font-size:.78rem}.kh-arch__bridge:before,.kh-arch__bridge:after{content:"";flex:1;height:1px;background:var(--kh-border-strong)}.kh-arch__list{display:grid;gap:18px;margin-top:26px;padding:0;list-style:none}.kh-arch__list li{display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;color:var(--kh-text-muted);font-size:.95rem}.kh-arch__list svg{margin-top:3px;color:var(--kh-success);flex:none}.kh-shots{display:grid;gap:52px;margin-top:44px}.kh-shot figure{margin:0}.kh-shot__frame{border-radius:var(--kh-radius);border:1px solid var(--kh-border);background:var(--kh-surface-sunken);box-shadow:var(--kh-shadow);overflow:hidden}.kh-shot__frame img{width:100%;height:auto}.kh-shot figcaption{margin-top:12px;color:var(--kh-text-muted);font-size:.9rem}.kh-shots__note{margin-top:32px;padding:18px 20px;border-radius:var(--kh-radius);border:1px solid var(--kh-border);background:var(--kh-surface-sunken);color:var(--kh-text-muted);font-size:.9rem;max-width:78ch}.kh-shots__note code{font-family:var(--kh-font-mono);font-size:.85em;color:var(--kh-text)}@media(max-width:700px){.kh-shot,.kh-shot figure,.kh-shot__frame,.kh-hero__shot{min-width:0}.kh-shot__frame,.kh-hero__shot{overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch;scrollbar-width:thin}.kh-shot__frame img,.kh-hero__shot img{width:760px;max-width:none;height:auto}.kh-shot__pan{display:block}}.kh-shot__pan{display:none;margin-top:4px;color:var(--kh-text-subtle);font-size:.82rem}.kh-honest{margin-top:44px;border:1px solid var(--kh-border);border-radius:var(--kh-radius-lg);overflow:hidden}.kh-honest__row{display:grid;gap:6px 28px;padding:22px 24px;border-bottom:1px solid var(--kh-border);grid-template-columns:minmax(0,1fr);background:var(--kh-surface)}.kh-honest__row:last-child{border-bottom:none}@media(min-width:860px){.kh-honest__row{grid-template-columns:minmax(190px,.85fr) minmax(0,2fr);align-items:baseline}}.kh-honest__area{font-weight:620;font-size:.98rem}.kh-honest__who{display:block;margin-top:2px;font-weight:400;font-size:.84rem;color:var(--kh-text-subtle)}.kh-honest__position{color:var(--kh-text-muted);font-size:.95rem}.kh-download{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(min(280px,100%),1fr));margin-top:40px}.kh-download__card{display:flex;flex-direction:column;gap:12px;padding:26px;border-radius:var(--kh-radius-lg);border:1px solid var(--kh-border);background:var(--kh-surface)}.kh-download__card--primary{border-color:var(--kh-accent);background:var(--kh-surface-raised)}.kh-download__platform{display:flex;align-items:center;gap:10px;font-size:1.06rem;font-weight:640}.kh-download__how{font-size:.95rem;color:var(--kh-accent-subtle-text);font-weight:560}.kh-download__detail{color:var(--kh-text-muted);font-size:.9rem}.kh-download__command{overflow-x:auto;padding:10px 12px;border-radius:var(--kh-radius);border:1px solid var(--kh-border);background:var(--kh-surface-sunken)}.kh-download__command code{font-family:var(--kh-font-mono);font-size:.82rem;white-space:nowrap;color:var(--kh-text)}.kh-download__cta{margin-top:auto;padding-top:6px}.kh-faq{margin-top:40px;max-width:82ch}.kh-faq__item{border-bottom:1px solid var(--kh-border)}.kh-faq__item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 4px;cursor:pointer;font-weight:580;font-size:1.01rem;list-style:none}.kh-faq__item summary::-webkit-details-marker{display:none}.kh-faq__item summary svg{flex:none;color:var(--kh-text-subtle);transition:transform .2s ease}.kh-faq__item[open] summary svg{transform:rotate(45deg)}.kh-faq__answer{padding:0 4px 22px;color:var(--kh-text-muted);font-size:.96rem;max-width:72ch}.kh-footer{border-top:1px solid var(--kh-border);padding-block:44px 56px;color:var(--kh-text-subtle);font-size:.9rem}.kh-footer__inner{display:flex;flex-wrap:wrap;gap:20px 32px;align-items:center}.kh-footer__links{display:flex;flex-wrap:wrap;gap:20px;margin-left:auto}.kh-footer__brand{display:flex;align-items:center;gap:10px;color:var(--kh-text);font-weight:620}.kh-footer__note{flex-basis:100%;max-width:74ch;line-height:1.65}