:root {
  --bg: #ffffff;
  --surface: #f7f8fa;
  --surface-blue: #f1f6ff;
  --surface-raised: #ffffff;
  --ink: #101214;
  --ink-soft: #4f555d;
  --ink-dim: #808791;
  --line: #e2e5e9;
  --line-strong: #cfd4da;
  --blue: #0878f9;
  --blue-dark: #0064d8;
  --blue-soft: #eaf3ff;
  --green: #1eaa5b;
  --green-soft: #eaf8f0;
  --amber: #b97900;
  --amber-soft: #fff7e6;
  --red: #d83b3b;
  --red-soft: #fff0f0;
  --shadow-sm: 0 8px 24px rgba(16, 24, 40, .06);
  --shadow-md: 0 24px 70px rgba(30, 48, 70, .11);
  --ease: cubic-bezier(.16, 1, .3, 1);
  --mono: "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  --sans: Inter, "Segoe UI", "Microsoft YaHei UI", sans-serif;
  color-scheme: light;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
}

* { box-sizing: border-box; }
html { min-width: 320px; scroll-behavior: smooth; }
body { margin: 0; min-height: 100vh; overflow-x: hidden; background: var(--bg); }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
svg { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.skip-link { position: fixed; z-index: 100; top: -64px; left: 24px; padding: 12px 18px; color: #fff; background: var(--blue); border-radius: 8px; font-weight: 700; }
.skip-link:focus { top: 16px; }

.boot-screen { position: fixed; z-index: 90; inset: 0; display: grid; place-content: center; gap: 24px; background: #fff; transition: opacity 480ms ease, visibility 480ms; }
body.is-ready .boot-screen { opacity: 0; visibility: hidden; }
.boot-logo { position: relative; color: var(--ink); font-size: 32px; font-weight: 800; letter-spacing: -.06em; }
.boot-logo span { position: absolute; right: -10px; top: -4px; width: 7px; height: 7px; border-radius: 50%; background: var(--blue); animation: boot-dot 800ms ease-in-out infinite alternate; }
.boot-track { width: 150px; height: 3px; overflow: hidden; border-radius: 10px; background: #edf0f3; }
.boot-track i { display: block; width: 52px; height: 100%; border-radius: inherit; background: var(--blue); animation: boot-track 900ms var(--ease) infinite; }

.topbar { position: sticky; z-index: 40; top: 0; height: 72px; background: rgba(255,255,255,.9); border-bottom: 1px solid rgba(220,224,229,.78); backdrop-filter: saturate(180%) blur(18px); }
.nav-shell, main, footer { width: min(1240px, calc(100% - 56px)); margin-inline: auto; }
.nav-shell { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 34px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; }
.brand > svg { width: 30px; height: 30px; color: var(--blue); fill: currentColor; stroke: none; }
.brand > span { display: flex; align-items: baseline; gap: 8px; }
.brand b { font-size: 19px; line-height: 1; letter-spacing: -.04em; }
.brand small { color: var(--ink-dim); font-size: 12px; }
nav { display: flex; align-items: center; gap: 32px; margin-right: auto; }
nav a { position: relative; padding: 25px 0; color: #30343a; text-decoration: none; font-size: 14px; }
nav a::after { content: ""; position: absolute; right: 0; bottom: 17px; left: 0; height: 2px; background: var(--blue); transform: scaleX(0); transition: transform 220ms ease; }
nav a:hover::after { transform: scaleX(1); }
.system-meta { display: flex; align-items: center; gap: 18px; color: var(--ink-dim); font: 500 11px/1 var(--mono); }
.node { color: #3f474f; }
.node i { display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(30,170,91,.1); animation: node-pulse 2.2s ease-in-out infinite; }

main { padding-bottom: 112px; }
.hero { position: relative; min-height: 630px; display: grid; grid-template-columns: .92fr 1.08fr; align-items: center; gap: 56px; padding: 76px 0 86px; overflow: clip; }
.hero::before { content: ""; position: absolute; z-index: -2; width: 680px; height: 680px; right: -150px; top: -90px; border-radius: 50%; background: radial-gradient(circle, rgba(220,236,255,.94), rgba(241,247,255,.42) 52%, transparent 70%); }
.hero-copy { position: relative; z-index: 3; animation: intro-up 800ms var(--ease) both; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 23px; color: #68707a; font: 600 11px/1 var(--mono); letter-spacing: .12em; }
.eyebrow span { width: 26px; height: 2px; background: var(--blue); }
h1 { margin: 0; font-size: clamp(52px, 6vw, 80px); line-height: 1.03; letter-spacing: -.065em; font-weight: 720; }
h1 em { color: var(--blue); font-style: normal; }
.hero-lead { max-width: 560px; margin: 28px 0 0; color: var(--ink-soft); font-size: 17px; line-height: 1.85; }
.hero-actions { display: flex; align-items: center; gap: 26px; margin-top: 35px; }
.primary-link { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 16px; padding: 0 22px; color: #fff; background: var(--blue); border-radius: 7px; box-shadow: 0 12px 25px rgba(8,120,249,.2); text-decoration: none; font-size: 14px; font-weight: 650; transition: transform 220ms ease, background 220ms ease, box-shadow 220ms ease; }
.primary-link svg { width: 19px; height: 19px; transition: transform 220ms ease; }
.primary-link:hover { transform: translateY(-2px); background: var(--blue-dark); box-shadow: 0 16px 34px rgba(8,120,249,.28); }
.primary-link:hover svg { transform: translateX(3px); }
.quiet-link { min-height: 44px; display: inline-flex; align-items: center; color: #363b41; text-decoration: none; font-size: 14px; border-bottom: 1px solid #8a9097; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 43px; color: #6d747d; font-size: 11px; }
.hero-facts span { display: flex; align-items: center; gap: 8px; }
.hero-facts b { color: var(--blue); font: 600 9px/1 var(--mono); }

.hero-visual { position: relative; min-height: 500px; isolation: isolate; animation: visual-in 1000ms 100ms var(--ease) both; }
.hero-visual::before { content: ""; position: absolute; z-index: -1; inset: 35px 0 0 20px; border-radius: 52% 48% 46% 54% / 56% 40% 60% 44%; background: linear-gradient(145deg, #f6f9ff, #dfeeff); transform: rotate(-4deg); }
.visual-orbit { position: absolute; border: 1px solid rgba(8,120,249,.16); border-radius: 50%; animation: orbit-spin 22s linear infinite; }
.visual-orbit::after { content: ""; position: absolute; width: 9px; height: 9px; top: 16%; left: 12%; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 6px rgba(8,120,249,.09); }
.orbit-one { width: 420px; height: 420px; top: 40px; left: 80px; }
.orbit-two { width: 330px; height: 330px; top: 85px; left: 125px; animation-direction: reverse; animation-duration: 17s; }
.server-stack { position: absolute; width: 440px; height: 240px; top: 150px; right: 17px; transform: perspective(900px) rotateY(-7deg); }
.server-unit { position: absolute; right: 0; width: 415px; height: 112px; display: flex; align-items: center; padding: 0 24px; border-radius: 14px; background: linear-gradient(155deg, #39424e, #171c22); border: 1px solid rgba(255,255,255,.28); box-shadow: 0 28px 55px rgba(25,40,58,.23), inset 0 1px rgba(255,255,255,.18); }
.server-back { top: 0; right: 38px; opacity: .88; transform: scale(.92); }
.server-back span { width: 190px; height: 50px; border-radius: 6px; background: linear-gradient(180deg, #232a32, #12161a); border: 1px solid #4d5865; }
.server-back i { width: 7px; height: 7px; margin-left: 10px; border-radius: 50%; background: #3fe585; box-shadow: 0 0 8px #3fe585; }
.server-main { top: 91px; }
.server-brand { width: 85px; color: #e8edf2; font: 650 10px/1 var(--mono); letter-spacing: .06em; }
.server-slots { flex: 1; display: grid; grid-template-columns: repeat(4,1fr); gap: 7px; }
.server-slots span { height: 55px; border-radius: 5px; background: linear-gradient(#222931,#12161b); border: 1px solid #53606d; box-shadow: inset 0 0 0 3px #1a2027; }
.server-lights { width: 34px; display: grid; justify-items: end; gap: 7px; }
.server-lights i { width: 6px; height: 6px; border-radius: 50%; background: #37da7e; box-shadow: 0 0 9px rgba(55,218,126,.8); animation: server-light 1.8s ease-in-out infinite alternate; }
.server-lights i:nth-child(2) { animation-delay: -.6s; }
.server-lights i:nth-child(3) { animation-delay: -1.2s; }
.license-card { position: absolute; z-index: 4; width: 250px; height: 155px; left: 16px; top: 112px; padding: 20px; overflow: hidden; color: #fff; border-radius: 16px; background: linear-gradient(135deg, #0878f9, #0059c8 62%, #004697); box-shadow: 0 30px 55px rgba(7,83,177,.28); transform: rotate(-7deg); animation: card-float 5s ease-in-out infinite; }
.license-card::after { content: ""; position: absolute; width: 170px; height: 220px; right: -80px; top: -80px; border: 30px solid rgba(255,255,255,.1); border-radius: 50%; }
.card-top { position: relative; z-index: 2; display: flex; justify-content: space-between; font: 600 9px/1 var(--mono); letter-spacing: .12em; }
.card-top i { width: 20px; height: 14px; border-radius: 3px; background: #dfeeff; opacity: .8; }
.license-card strong { position: relative; z-index: 2; display: block; margin-top: 31px; font-size: 15px; letter-spacing: .02em; }
.license-card code { position: relative; z-index: 2; display: block; margin-top: 12px; font-size: 13px; }
.license-card small { position: relative; z-index: 2; display: block; margin-top: 14px; font: 500 8px/1 var(--mono); letter-spacing: .12em; opacity: .72; }
.status-float { position: absolute; z-index: 5; right: 0; bottom: 30px; min-width: 214px; display: flex; align-items: center; gap: 13px; padding: 14px 17px; border: 1px solid rgba(217,222,228,.8); border-radius: 12px; background: rgba(255,255,255,.88); box-shadow: var(--shadow-sm); backdrop-filter: blur(14px); animation: status-float 4.2s 500ms ease-in-out infinite; }
.status-float > i { width: 12px; height: 12px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 6px var(--green-soft); }
.status-float span { display: grid; gap: 4px; }
.status-float b { font-size: 12px; }
.status-float small { color: var(--ink-dim); font-size: 10px; }

.trust-strip { min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 0 26px; border-block: 1px solid var(--line); color: #777e87; }
.trust-strip p { margin: 0; font: 600 10px/1 var(--mono); letter-spacing: .08em; }
.trust-strip div { display: flex; align-items: center; gap: 16px; font-size: 11px; }
.trust-strip i { width: 3px; height: 3px; border-radius: 50%; background: #b8bdc4; }

.section-heading { max-width: 740px; margin: 108px auto 42px; text-align: center; scroll-margin-top: 110px; }
.section-heading > p { margin: 0 0 12px; color: var(--blue); font-size: 12px; font-weight: 700; letter-spacing: .12em; }
.section-heading h2 { margin: 0; font-size: clamp(34px, 4vw, 50px); letter-spacing: -.045em; }
.section-heading > span { display: block; margin-top: 17px; color: var(--ink-soft); line-height: 1.75; }

.workspace { display: grid; grid-template-columns: minmax(0,1.08fr) minmax(390px,.92fr); align-items: start; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow-md); overflow: clip; }
.panel { min-width: 0; padding: 34px; }
.catalog-panel { background: #fbfcfd; }
.checkout-panel { position: sticky; top: 84px; min-height: 650px; background: #fff; border-left: 1px solid var(--line); }
.panel-head { min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.panel-head > div { display: flex; align-items: center; gap: 13px; }
.panel-head h3 { margin: 0 0 5px; font-size: 15px; }
.panel-head p { margin: 0; color: var(--ink-dim); font-size: 11px; }
.index { width: 34px; height: 34px; display: grid; place-items: center; color: var(--blue); background: var(--blue-soft); border-radius: 9px; font: 650 10px/1 var(--mono); }
.panel-state { min-height: 27px; display: inline-flex; align-items: center; padding: 0 10px; color: var(--amber); background: var(--amber-soft); border-radius: 100px; font-size: 9px; font-weight: 700; }
.panel-state.ready { color: var(--green); background: var(--green-soft); }
.panel-state.error { color: var(--red); background: var(--red-soft); }

.product-grid { display: grid; gap: 12px; margin-top: 24px; }
.product-card { position: relative; width: 100%; min-height: 138px; display: grid; grid-template-columns: 1fr auto; gap: 18px; padding: 21px; overflow: hidden; color: var(--ink); text-align: left; background: #fff; border: 1px solid var(--line); border-radius: 12px; transition: transform 260ms var(--ease), border-color 220ms ease, box-shadow 260ms ease; }
.product-card::before { content: ""; position: absolute; top: 0; bottom: 0; left: 0; width: 4px; background: var(--blue); transform: scaleY(0); transition: transform 280ms var(--ease); }
.product-card:hover { transform: translateY(-3px); border-color: #b9cde5; box-shadow: 0 13px 28px rgba(30,60,95,.08); }
.product-card[aria-pressed="true"] { border-color: var(--blue); background: linear-gradient(105deg, #fff, #f5f9ff); box-shadow: 0 12px 30px rgba(8,120,249,.11); }
.product-card[aria-pressed="true"]::before { transform: scaleY(1); }
.product-card h3 { margin: 0 0 7px; font-size: 17px; }
.product-card p { margin: 0; color: var(--ink-soft); font-size: 12px; line-height: 1.6; }
.product-meta { display: flex; flex-wrap: wrap; gap: 7px 13px; margin-top: 15px; color: var(--ink-dim); font: 500 9px/1 var(--mono); }
.product-price { align-self: center; text-align: right; }
.product-price strong { display: block; color: var(--ink); font-size: 26px; line-height: 1; letter-spacing: -.04em; }
.product-price small { color: var(--ink-dim); font-size: 9px; }
.badge { display: inline-block; margin-bottom: 10px; padding: 5px 8px; color: #fff; background: var(--blue); border-radius: 100px; font-size: 8px; font-weight: 700; }
.product-skeleton { height: 138px; border: 1px solid var(--line); border-radius: 12px; background: linear-gradient(100deg, #f4f5f7 30%, #fff 45%, #f4f5f7 60%); background-size: 300% 100%; animation: skeleton 1.5s ease infinite; }
.catalog-empty { padding: 44px 20px; color: var(--ink-dim); text-align: center; border: 1px dashed var(--line-strong); border-radius: 12px; line-height: 1.7; }

.stage { padding-top: 25px; }
.stage[hidden] { display: none; }
.empty-selection { min-height: 142px; display: grid; place-items: center; align-content: center; gap: 8px; color: var(--ink-dim); border: 1px dashed var(--line-strong); border-radius: 12px; background: var(--surface); }
.empty-selection b { color: #555d66; font-size: 13px; }
.empty-selection > span:last-child { font-size: 11px; }
.empty-icon { width: 40px; height: 40px; display: grid; place-items: center; margin-bottom: 3px; color: var(--blue); background: var(--blue-soft); border-radius: 50%; }
.empty-icon svg { width: 21px; height: 21px; }
.selected-summary { position: relative; min-height: 142px; padding: 22px; overflow: hidden; background: linear-gradient(120deg, #f5f9ff, #fff); border: 1px solid #cfe1f8; border-radius: 12px; }
.selected-summary::after { content: ""; position: absolute; top: 0; left: -50%; width: 30%; height: 100%; background: linear-gradient(90deg, transparent, rgba(8,120,249,.08), transparent); animation: summary-scan 4s ease-in-out infinite; }
.selected-summary > span { color: var(--blue); font: 650 9px/1 var(--mono); letter-spacing: .09em; }
.selected-summary h3 { margin: 12px 0 7px; font-size: 21px; }
.selected-summary p { margin: 0; color: var(--ink-soft); font-size: 12px; line-height: 1.6; }
.summary-line { display: flex; justify-content: space-between; gap: 18px; margin-top: 15px; padding-top: 13px; border-top: 1px solid #dbe7f5; }
.summary-line span { color: var(--ink-dim); font: 500 9px/1 var(--mono); }
.summary-line strong { color: var(--blue); font-size: 15px; }

form { margin-top: 24px; }
form > label:not(.consent) { display: block; margin-bottom: 9px; color: #444a51; font-size: 13px; font-weight: 650; }
.input-shell { height: 52px; display: flex; align-items: center; gap: 11px; padding: 0 14px; background: #fff; border: 1px solid var(--line-strong); border-radius: 8px; transition: border-color 200ms ease, box-shadow 200ms ease; }
.input-shell:focus-within { border-color: var(--blue); box-shadow: 0 0 0 4px rgba(8,120,249,.1); }
.input-shell svg { flex: 0 0 auto; width: 19px; height: 19px; color: var(--ink-dim); }
.input-shell input { width: 100%; height: 100%; padding: 0; color: var(--ink); background: transparent; border: 0; outline: 0; font-size: 16px; }
.input-shell input::placeholder { color: #9aa0a8; }
form > small { display: block; margin-top: 8px; color: var(--ink-dim); font-size: 11px; }
.field-error { min-height: 18px; margin: 6px 0; color: var(--red); font-size: 11px; }
.consent { min-height: 44px; display: flex; align-items: center; gap: 10px; color: var(--ink-soft); font-size: 12px; cursor: pointer; }
.consent input { width: 18px; height: 18px; margin: 0; accent-color: var(--blue); }
.issue-button { position: relative; width: 100%; min-height: 54px; display: flex; align-items: center; justify-content: space-between; margin-top: 15px; padding: 0 20px; color: #fff; background: var(--blue); border: 0; border-radius: 8px; font-size: 13px; font-weight: 700; transition: transform 200ms ease, background 200ms ease, box-shadow 200ms ease, opacity 200ms ease; }
.issue-button svg { width: 21px; height: 21px; }
.issue-button:hover:not(:disabled) { transform: translateY(-1px); background: var(--blue-dark); box-shadow: 0 12px 26px rgba(8,120,249,.22); }
.issue-button:disabled { cursor: not-allowed; opacity: .35; }
.issue-button.is-loading span { color: transparent; }
.issue-button.is-loading::before { content: ""; position: absolute; width: 18px; height: 18px; left: calc(50% - 9px); border: 2px solid rgba(255,255,255,.38); border-top-color: #fff; border-radius: 50%; animation: spin 700ms linear infinite; }

.order-identity > span, .payment-box > div > span, .vault-head { color: var(--ink-dim); font-size: 10px; font-weight: 700; letter-spacing: .06em; }
.order-identity > div { min-height: 56px; display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 9px; padding: 0 8px 0 15px; background: var(--surface); border: 1px solid var(--line); border-radius: 9px; }
.order-identity code { overflow: hidden; color: var(--blue); text-overflow: ellipsis; white-space: nowrap; font: 650 13px/1 var(--mono); }
.icon-button { flex: 0 0 auto; width: 42px; height: 42px; display: grid; place-items: center; color: var(--ink-soft); background: #fff; border: 1px solid var(--line); border-radius: 7px; }
.icon-button svg { width: 17px; height: 17px; }
.timeline { position: relative; margin: 31px 6px; }
.timeline-track { position: absolute; top: 14px; right: 11%; left: 11%; height: 2px; background: #e2e6ea; }
.timeline-track i { display: block; height: 100%; width: 0; background: var(--blue); transition: width 500ms var(--ease); }
.timeline-track i.is-awaiting { width: 50%; }
.timeline-track i.is-delivered { width: 100%; }
.timeline-steps { position: relative; display: grid; grid-template-columns: repeat(3,1fr); }
.timeline-steps span { display: grid; justify-items: center; gap: 8px; color: var(--ink-dim); text-align: center; }
.timeline-steps i { width: 30px; height: 30px; display: grid; place-items: center; color: #8e959d; background: #fff; border: 1px solid var(--line-strong); border-radius: 50%; font: 650 10px/1 var(--mono); }
.timeline-steps b { font-size: 10px; font-weight: 600; }
.timeline-steps span.active { color: var(--ink); }
.timeline-steps span.active i { color: #fff; background: var(--blue); border-color: var(--blue); box-shadow: 0 0 0 5px var(--blue-soft); }
.payment-box { min-height: 114px; display: grid; grid-template-columns: 72px 1fr; gap: 17px; align-items: center; padding: 20px; background: var(--surface-blue); border: 1px solid #d7e7fa; border-radius: 12px; }
.payment-box[hidden] { display: none; }
.payment-box p { margin: 8px 0 7px; color: #24292f; font-size: 13px; line-height: 1.6; }
.payment-box small { color: var(--ink-dim); font-size: 10px; }
.payment-signal { position: relative; width: 66px; height: 66px; display: grid; place-items: center; }
.payment-signal::after { content: "¥"; position: relative; z-index: 2; width: 32px; height: 32px; display: grid; place-items: center; color: #fff; background: var(--blue); border-radius: 50%; font-weight: 700; }
.payment-signal span { position: absolute; inset: 5px; border: 1px solid rgba(8,120,249,.32); border-radius: 50%; animation: signal-wave 2.4s ease-out infinite; }
.payment-signal span:nth-child(2) { animation-delay: .8s; }
.payment-signal span:nth-child(3) { animation-delay: 1.6s; }
.vault { position: relative; margin-top: 19px; padding: 20px; overflow: hidden; background: linear-gradient(135deg, #f0f8f4, #f8fcfa); border: 1px solid #bfe4cf; border-radius: 12px; animation: vault-enter 520ms var(--ease) both; }
.vault[hidden] { display: none; }
.vault::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent, rgba(30,170,91,.08), transparent); transform: translateY(-100%); animation: vault-scan 2.6s ease-in-out infinite; }
.vault-head { position: relative; z-index: 2; display: flex; justify-content: space-between; gap: 12px; }
.secure-tag { color: var(--green); }
.license-line { position: relative; z-index: 2; min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 14px 0; padding: 0 10px 0 13px; background: #fff; border: 1px solid #cfe8da; border-radius: 8px; }
.license-line code { overflow: hidden; color: #187e47; text-overflow: ellipsis; white-space: nowrap; font: 650 14px/1 var(--mono); }
.license-line button { min-width: 66px; height: 36px; color: #187e47; background: var(--green-soft); border: 0; border-radius: 6px; font-size: 10px; font-weight: 700; }
.copy-license { position: relative; z-index: 2; width: 100%; min-height: 47px; display: flex; align-items: center; justify-content: center; gap: 9px; color: #fff; background: var(--green); border: 0; border-radius: 8px; font-size: 11px; font-weight: 700; }
.copy-license svg { width: 17px; height: 17px; }
.order-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 18px; color: var(--ink-dim); font-size: 10px; }
.text-button { min-height: 44px; padding: 0 8px; color: var(--blue); background: transparent; border: 0; font-size: 10px; font-weight: 700; }

.security-section { margin-top: 120px; padding: 96px 0; border-radius: 24px; background: var(--surface); scroll-margin-top: 90px; }
.section-heading.compact { margin: 0 auto 45px; }
.protocols { display: grid; grid-template-columns: repeat(3,1fr); padding: 0 46px; }
.protocols article { min-height: 250px; padding: 30px; border-right: 1px solid var(--line); }
.protocols article:last-child { border-right: 0; }
.protocol-icon { width: 54px; height: 54px; display: grid; place-items: center; margin-bottom: 30px; color: var(--blue); background: #fff; border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow-sm); }
.protocol-icon svg { width: 25px; height: 25px; }
.protocols article small { color: var(--blue); font: 650 9px/1 var(--mono); }
.protocols article b { display: block; margin-top: 15px; font-size: 18px; }
.protocols article p { margin: 13px 0 0; color: var(--ink-soft); font-size: 13px; line-height: 1.8; }

.toast { position: fixed; z-index: 70; right: 24px; bottom: 24px; max-width: min(380px,calc(100% - 48px)); padding: 14px 18px; color: #fff; background: #23272d; border-radius: 8px; box-shadow: 0 18px 45px rgba(0,0,0,.18); opacity: 0; transform: translateY(16px); pointer-events: none; transition: opacity 220ms ease, transform 300ms var(--ease); }
.toast.is-visible { opacity: 1; transform: translateY(0); }
.toast.is-error { background: var(--red); }
footer { min-height: 150px; display: flex; align-items: center; justify-content: space-between; gap: 28px; padding: 35px 0; border-top: 1px solid var(--line); }
.footer-brand { gap: 8px; }
.footer-brand b { font-size: 18px; }
.footer-brand small { color: var(--ink-dim); }
footer p { margin: 12px 0 0; color: var(--ink-dim); font-size: 11px; }
.footer-meta { display: flex; gap: 24px; color: var(--ink-dim); font-size: 10px; }

:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
@keyframes boot-dot { to { transform: scale(1.55); opacity: .4; } }
@keyframes boot-track { from { transform: translateX(-60px); } to { transform: translateX(170px); } }
@keyframes node-pulse { 50% { box-shadow: 0 0 0 9px rgba(30,170,91,0); } }
@keyframes intro-up { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: translateY(0); } }
@keyframes visual-in { from { opacity: 0; transform: translateX(25px) scale(.97); } to { opacity: 1; transform: none; } }
@keyframes orbit-spin { to { transform: rotate(360deg); } }
@keyframes card-float { 50% { transform: rotate(-5deg) translateY(-12px); } }
@keyframes status-float { 50% { transform: translateY(-7px); } }
@keyframes server-light { to { opacity: .35; } }
@keyframes skeleton { from { background-position: 100% 0; } to { background-position: -100% 0; } }
@keyframes summary-scan { 0%,20% { transform: translateX(-100%); } 65%,100% { transform: translateX(580%); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes signal-wave { 0% { transform: scale(.45); opacity: 0; } 35% { opacity: 1; } 100% { transform: scale(1.15); opacity: 0; } }
@keyframes vault-enter { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
@keyframes vault-scan { 0%,20% { transform: translateY(-100%); } 75%,100% { transform: translateY(120%); } }

@media (max-width: 1040px) {
  nav { display: none; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 70px; }
  .hero-copy { max-width: 700px; }
  .hero-visual { width: min(680px,100%); margin: 0 auto; }
  .workspace { grid-template-columns: 1fr; }
  .checkout-panel { position: static; min-height: 0; border-top: 1px solid var(--line); border-left: 0; }
}

@media (max-width: 720px) {
  .nav-shell, main, footer { width: min(100% - 30px,1240px); }
  .topbar { height: 66px; }
  .brand small, .clock { display: none; }
  .system-meta { font-family: var(--sans); }
  .hero { gap: 35px; padding: 50px 0 60px; }
  h1 { font-size: clamp(44px,14vw,66px); }
  .hero-lead { font-size: 15px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 15px; }
  .hero-facts { display: grid; gap: 11px; }
  .hero-visual { min-height: 370px; width: 100%; margin-bottom: -38px; }
  .server-stack { right: -10px; transform: perspective(900px) rotateY(-7deg) scale(.72); transform-origin: right center; }
  .license-card { left: 0; top: 95px; transform: rotate(-7deg) scale(.84); transform-origin: left top; }
  .orbit-one { left: 2%; width: 320px; height: 320px; }
  .orbit-two { left: 12%; width: 260px; height: 260px; }
  .status-float { right: 0; bottom: 15px; }
  .trust-strip { align-items: flex-start; flex-direction: column; padding: 20px 5px; }
  .trust-strip div { flex-wrap: wrap; }
  .section-heading { margin-top: 82px; }
  .workspace { margin-inline: -1px; border-radius: 13px; }
  .panel { padding: 24px 18px; }
  .panel-head > div { align-items: flex-start; }
  .product-card { grid-template-columns: 1fr; }
  .product-price { text-align: left; }
  .timeline-steps b { font-size: 9px; }
  .payment-box { grid-template-columns: 1fr; }
  .payment-signal { display: none; }
  .vault-head { flex-direction: column; }
  .order-footer { align-items: flex-start; flex-direction: column; }
  .security-section { margin-inline: -15px; padding: 72px 15px; border-radius: 0; }
  .protocols { grid-template-columns: 1fr; padding: 0; }
  .protocols article { min-height: 0; padding: 28px 12px; border-right: 0; border-bottom: 1px solid var(--line); }
  .protocols article:last-child { border-bottom: 0; }
  footer { min-height: 170px; align-items: flex-start; justify-content: center; flex-direction: column; }
  .footer-meta { flex-wrap: wrap; gap: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .boot-screen { display: none; }
}