:root {
  --ink:#17130f;--paper:#f6f4f1;--paper-deep:#ece8e2;--white:#fff;
  --red:#e42320;--red-dark:#a91413;--coral:#ef6b5c;--gold:#d6a443;
  --green:#2e7d5b;--muted:#756e66;--line:#e5e0d9;--soft:#f1ede8;
  --shadow:0 22px 60px rgba(23,19,15,.10);--radius:24px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;overflow-x:hidden;color:var(--ink);background:var(--paper);font-family:Manrope,Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit}button,a{-webkit-tap-highlight-color:transparent}.skip-link{position:fixed;z-index:1000;top:10px;left:10px;padding:10px 14px;transform:translateY(-150%);border-radius:10px;color:#fff;background:#111}.skip-link:focus{transform:none}.topline{height:8px;background:linear-gradient(90deg,var(--red) 0 76%,var(--gold) 76%)}
.masthead{color:#fff;background:radial-gradient(circle at 85% 10%,rgba(228,35,32,.34),transparent 34%),radial-gradient(circle at 15% 90%,rgba(239,107,92,.14),transparent 35%),linear-gradient(135deg,#17130f,#211713 68%,#481412)}.masthead__bar{display:flex;max-width:1320px;margin:auto;padding:22px 34px;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid rgba(255,255,255,.14)}.brand{display:flex;align-items:center;gap:13px;text-decoration:none}.brand__mark{display:grid;width:46px;height:46px;place-items:center;border-radius:15px;color:#fff;background:var(--red);font-size:31px;font-weight:900;line-height:1}.brand__copy{display:grid;line-height:1.1}.brand__copy strong{font-size:17px;letter-spacing:.08em}.brand__copy small{margin-top:5px;color:var(--coral);font-size:11px;text-transform:uppercase;letter-spacing:.14em}.masthead__actions,.action-row,.final-panel__actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px}.masthead__content{display:grid;max-width:1320px;margin:auto;padding:68px 34px 78px;grid-template-columns:minmax(0,1.3fr) minmax(300px,.7fr);gap:64px;align-items:center}.eyebrow,.chapter-label{margin:0 0 10px;color:var(--coral);font-size:12px;font-weight:900;letter-spacing:.14em}.masthead h1{max-width:780px;margin:0;font-size:clamp(42px,6vw,78px);line-height:.98;letter-spacing:-.055em}.lead{max-width:760px;margin:25px 0;color:rgba(255,255,255,.8);font-size:20px}.release-badge{display:inline-flex;padding:10px 14px;align-items:center;gap:10px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:rgba(255,255,255,.07);font-size:13px}.release-badge span{color:rgba(255,255,255,.62)}.hero-note{padding:30px;border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);background:rgba(23,19,15,.56);box-shadow:var(--shadow)}.hero-note>strong{font-size:22px}.hero-note p,.hero-note li{color:rgba(255,255,255,.74)}.hero-note ul{margin:18px 0 0;padding-left:20px}
.button{display:inline-flex;min-height:44px;padding:10px 17px;align-items:center;justify-content:center;border:1px solid transparent;border-radius:12px;font:inherit;font-weight:850;text-decoration:none;cursor:pointer}.button--small{min-height:40px;padding:8px 14px;font-size:13px}.button--primary{color:#fff;background:var(--red);box-shadow:0 10px 22px rgba(228,35,32,.22)}.button--primary:hover{background:var(--red-dark)}.button--ghost{color:#fff;border-color:rgba(255,255,255,.32);background:transparent}.button--light{border-color:var(--line);background:#fff}.button--light:hover{color:var(--red);border-color:#efb6b4}.toc-toggle{display:none;color:#fff;border-color:rgba(255,255,255,.3);background:transparent}
.guide-grid{display:grid;max-width:1380px;margin:0 auto;padding:38px 34px 90px;grid-template-columns:285px minmax(0,1fr);gap:34px}.toc{position:sticky;top:24px;max-height:calc(100vh - 48px);overflow:auto;align-self:start;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 12px 35px rgba(23,19,15,.06)}.toc__title{display:flex;padding:20px;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line)}.toc__title span{color:var(--red);font-size:11px;font-weight:900}.toc nav{display:grid;padding:10px}.toc nav a{padding:9px 11px;border-radius:9px;color:#574f49;font-size:13px;text-decoration:none}.toc nav a:hover{color:var(--red);background:#fff0ef}.toc__help{margin:8px;padding:16px;border-radius:14px;background:#fff2f0}.toc__help p{margin:6px 0 0;color:var(--muted);font-size:12px}.content{min-width:0}.intro-panel,.chapter,.final-panel{margin-bottom:28px;padding:clamp(25px,4vw,46px);border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 14px 42px rgba(23,19,15,.06)}.intro-panel h2,.final-panel h2{margin:0 0 8px;font-size:clamp(28px,4vw,44px);line-height:1.08;letter-spacing:-.035em}.intro-panel>p,.final-panel p{color:var(--muted)}.feature-grid{display:grid;margin-top:28px;grid-template-columns:repeat(3,1fr);gap:14px}.feature{display:grid;padding:20px;border:1px solid var(--line);border-radius:16px;background:#faf8f6;gap:6px}.feature b{display:grid;width:32px;height:32px;place-items:center;border-radius:50%;color:#fff;background:var(--red)}.feature p{margin:0;color:var(--muted);font-size:13px}.chapter__head{display:grid;grid-template-columns:66px 1fr;gap:20px}.chapter__number{display:grid;width:62px;height:62px;place-items:center;border-radius:18px;color:#fff;background:var(--red);font-size:20px;font-weight:900;box-shadow:0 10px 24px rgba(228,35,32,.2)}.chapter__head h2{margin:0;font-size:clamp(28px,4vw,42px);line-height:1.08;letter-spacing:-.035em}.chapter__head p:not(.chapter-label){margin:8px 0;color:var(--muted)}.chapter-label{color:var(--red)}.steps{display:grid;margin:30px 0;padding:0;counter-reset:step;gap:12px;list-style:none}.steps li{position:relative;display:grid;min-height:70px;padding:15px 18px 15px 62px;border:1px solid var(--line);border-radius:15px;background:#fcfbfa}.steps li::before{position:absolute;left:17px;top:16px;display:grid;width:34px;height:34px;place-items:center;border-radius:50%;color:#fff;background:var(--red);font-weight:900;counter-increment:step;content:counter(step)}.steps strong{font-size:15px}.steps span{color:var(--muted);font-size:13px}
.screenshot{margin:26px 0;overflow:hidden;border:1px solid #d8d1c9;border-radius:19px;background:var(--paper-deep);box-shadow:0 18px 45px rgba(23,19,15,.10)}.screenshot__open{display:block;width:100%;padding:0;border:0;background:transparent;font:inherit;text-align:left;cursor:zoom-in}.screenshot__frame{position:relative;display:block;overflow:hidden;background:#17130f;aspect-ratio:1440/950}.screenshot img{display:block;width:100%;height:100%;object-fit:cover}.screenshot__zoom{position:absolute;right:16px;bottom:16px;padding:8px 12px;border-radius:999px;color:#fff;background:rgba(23,19,15,.82);font-size:12px;font-weight:850;box-shadow:0 6px 20px rgba(0,0,0,.24)}.image-pin{position:absolute;left:var(--pin-x);top:var(--pin-y);display:grid;width:34px;height:34px;place-items:center;transform:translate(-50%,-50%);border:3px solid #fff;border-radius:50%;color:#fff;background:var(--red);font-size:14px;font-weight:950;box-shadow:0 4px 14px rgba(23,19,15,.48)}.screenshot figcaption{padding:13px 18px;color:var(--muted);background:#fff;font-size:12px}.screenshot figcaption strong{color:var(--ink)}.screenshot__open:focus-visible{outline:4px solid var(--gold);outline-offset:-4px}
.callout{display:grid;margin:18px 0;padding:18px;grid-template-columns:34px 1fr;gap:13px;border-radius:15px}.callout__icon{display:grid;width:32px;height:32px;place-items:center;border-radius:50%;font-weight:900}.callout p{margin:2px 0}.callout--success{border:1px solid #bce0ce;background:#edf8f2}.callout--success .callout__icon{color:#fff;background:var(--green)}.callout--danger{border:1px solid #edc7c3;background:#fff3f1}.callout--danger .callout__icon{color:#fff;background:var(--red)}.faq{display:grid;gap:10px}.faq details{padding:18px;border:1px solid var(--line);border-radius:14px}.faq summary{font-weight:850;cursor:pointer}.faq p{margin:10px 0 0;color:var(--muted)}.final-panel{color:#fff;background:radial-gradient(circle at 90% 0,rgba(239,107,92,.28),transparent 35%),linear-gradient(135deg,#17130f,#531513)}.final-panel__top p{color:rgba(255,255,255,.72)}.footer{color:#fff;background:#17130f}.footer__inner{display:flex;max-width:1320px;margin:auto;padding:28px 34px;align-items:center;justify-content:space-between}.footer__inner div{display:grid}.footer small{color:rgba(255,255,255,.58)}.footer a{text-decoration:none}
.shot-dialog{width:min(96vw,1500px);max-width:none;padding:0;border:0;border-radius:18px;background:#17130f;box-shadow:0 35px 100px rgba(0,0,0,.55)}.shot-dialog::backdrop{background:rgba(10,8,7,.86);backdrop-filter:blur(4px)}.shot-dialog img{display:block;width:100%;height:auto;max-height:88vh;object-fit:contain}.shot-dialog p{margin:0;padding:10px 16px;color:rgba(255,255,255,.72);font-size:12px;text-align:center}.shot-dialog__close{position:absolute;z-index:2;top:10px;right:10px;display:grid;width:42px;height:42px;place-items:center;border:1px solid rgba(255,255,255,.25);border-radius:50%;color:#fff;background:rgba(23,19,15,.84);font-size:28px;line-height:1;cursor:pointer}
@media(max-width:980px){.masthead__content{grid-template-columns:1fr;gap:28px}.guide-grid{grid-template-columns:1fr}.toc{position:fixed;z-index:100;top:0;right:0;bottom:0;width:min(88vw,360px);max-height:none;transform:translateX(105%);border-radius:0;transition:transform .2s}.toc.is-open{transform:none}.toc-toggle{display:inline-flex}.feature-grid{grid-template-columns:1fr}}
@media(max-width:700px){.masthead__bar{padding:16px 18px;align-items:flex-start}.masthead__actions{justify-content:flex-end}.masthead__actions .button--ghost{display:none}.masthead__content{padding:48px 20px 55px}.masthead h1{font-size:43px}.guide-grid{padding:22px 14px 60px}.intro-panel,.chapter,.final-panel{padding:24px 18px;border-radius:18px}.chapter__head{grid-template-columns:48px 1fr}.chapter__number{width:46px;height:46px;border-radius:13px;font-size:15px}.image-pin{width:28px;height:28px;border-width:2px;font-size:12px}.screenshot__zoom{display:none}.footer__inner{padding:24px 18px;align-items:flex-start;flex-direction:column;gap:12px}}
@media print{.topline,.masthead__actions,.toc,.action-row,.final-panel__actions,.screenshot__zoom,.shot-dialog{display:none!important}.masthead{color:#111;background:#fff}.masthead__bar{border-bottom:1px solid #ccc}.brand__mark{border:1px solid #ccc}.brand__copy small,.lead,.hero-note p,.hero-note li{color:#444}.hero-note{background:#fff;box-shadow:none}.guide-grid{display:block;max-width:none;padding:0}.intro-panel,.chapter,.final-panel{break-inside:avoid;box-shadow:none}.chapter{break-before:page}.final-panel{color:#111;background:#fff}.footer{display:none}.screenshot{box-shadow:none}}