:root {
  --ink: #1b1b22;
  --muted: #625f6a;
  --paper: #f8f5ef;
  --surface: #fffdf8;
  --line: #c5c0b4;
  --indigo: #3e418f;
  --indigo-deep: #282a68;
  --indigo-soft: #e7e7fa;
  --teal: #2f6b58;
  --teal-soft: #dcece4;
  --amber: #8a5919;
  --amber-soft: #f7e8c9;
  --coral: #b6483e;
  --coral-soft: #f6d9d4;
  font: 17px/1.65 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--indigo-deep); outline-offset: 3px; box-shadow: 0 0 0 6px #fff; }
button { font: inherit; }
code { font: .9em/1.5 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
.wrap { width: min(1080px, calc(100% - 40px)); margin: auto; }

.nav { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 28px 0 20px; }
.brand { color: var(--ink); font-weight: 850; font-size: 1.2rem; letter-spacing: -.04em; text-decoration: none; }
.brand span { color: var(--indigo); }
.lang { border: 1px solid var(--ink); padding: 7px 13px; color: var(--ink); font-size: .78rem; font-weight: 800; letter-spacing: .07em; text-decoration: none; background: transparent; }

.hero { overflow: hidden; background: radial-gradient(circle at 83% 48%, #ebeafa 0, transparent 29rem), var(--paper); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(360px, .98fr); gap: clamp(28px, 5vw, 76px); align-items: center; padding: 58px 0 82px; }
.hero-copy { position: relative; z-index: 1; padding-bottom: 6px; }
.eyebrow { display: inline-block; padding: 5px 12px; background: var(--indigo-soft); color: var(--indigo-deep); font-size: .78rem; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; }
h1, h2, h3 { font-family: "Iowan Old Style", Baskerville, "Songti TC", "Noto Serif TC", Georgia, "Times New Roman", serif; line-height: 1.04; letter-spacing: -.045em; }
h1 { margin: 17px 0; font-size: clamp(2.45rem, 5.1vw, 4.15rem); max-width: 690px; }
h1 strong { color: var(--indigo); }
.lead { color: var(--muted); font-size: 1.12rem; max-width: 570px; }

.command-cta { position: relative; margin-top: 34px; max-width: 530px; padding: 3px 0 2px 19px; border: 0; background: transparent; }
.command-cta::before { position: absolute; top: 0; bottom: 0; left: 0; width: 2px; background: var(--indigo); content: ""; }
.command-label { margin: 0 0 8px; color: var(--indigo-deep); font-size: .79rem; font-weight: 850; letter-spacing: .09em; text-transform: uppercase; }
.command-row { display: flex; align-items: stretch; gap: 9px; }
.command-row code { flex: 1; min-width: 0; overflow-x: auto; padding: 10px 12px; border: 1px solid var(--ink); background: var(--surface); box-shadow: 4px 4px 0 var(--indigo-soft); color: var(--ink); white-space: nowrap; }
.copy-button { display: none; align-items: center; justify-content: center; border: 1px solid var(--indigo); background: var(--indigo); color: #fff; padding: 10px 13px; cursor: pointer; font-size: .86rem; font-weight: 800; white-space: nowrap; }
.js .copy-button { display: inline-flex; }
.copy-button:hover { background: var(--indigo-deep); }
.prerequisites, .command-note, .copy-status { margin: 8px 0 0; font-size: .81rem; }
.prerequisites { color: var(--ink); font-weight: 700; }
.command-note { color: var(--muted); }
.copy-status { min-height: 1.6em; color: var(--teal); font-weight: 700; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.button { display: inline-flex; align-items: center; gap: 8px; padding: 12px 17px; border: 1px solid var(--indigo); background: var(--indigo); color: #fff; font-weight: 750; text-decoration: none; }
.button:hover { background: var(--indigo-deep); }
.button.secondary { padding: 2px 0 4px; border: 0; border-bottom: 1px solid currentColor; color: var(--indigo-deep); background: transparent; }
.button.secondary:hover { color: var(--indigo); background: transparent; }
.verification-links { margin: 14px 0 0; color: var(--muted); font-size: .88rem; }
.verification-links a, .footer a { color: var(--indigo-deep); font-weight: 750; }

.terminal { padding: 24px; border: 1px solid var(--ink); background: #1f2420; color: #eff1eb; font: .88rem/1.85 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
.terminal-label { margin: 0 0 11px; color: #f0d08a; font: 800 .73rem/1.2 Inter, ui-sans-serif, system-ui, sans-serif; letter-spacing: .1em; text-transform: uppercase; }
.terminal .dim { color: #b9c2b5; }
.terminal .ok { color: #a8d39b; }
.terminal .cmd { color: #f0d08a; }
.hero-art { position: relative; z-index: 0; margin: -4px -64px -14px -22px; aspect-ratio: 3 / 2; }
.hero-art::before { position: absolute; inset: 12% 4% 2% 12%; border-radius: 48% 9% 42% 8%; background: var(--indigo-soft); content: ""; transform: rotate(3deg); }
.hero-art img { position: relative; display: block; width: 100%; height: 100%; border-radius: 46% 7% 40% 8%; object-fit: cover; transform: rotate(-2deg); }

section { padding: 82px 0; }
section.alt { background: var(--surface); border-block: 1px solid var(--ink); }
.section-label { color: var(--teal); font-size: .8rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
h2 { font-size: clamp(1.75rem, 3vw, 2.55rem); margin: 9px 0 14px; }
.section-intro { color: var(--muted); max-width: 680px; margin: 0 0 35px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { padding: 25px; border-top: 5px solid var(--ink); background: transparent; }
.risk-card { border-color: var(--coral); }
.review-card { border-color: var(--amber); }
.valid-card { border-color: var(--teal); }
.card h3 { margin: 13px 0 8px; font-size: 1.15rem; }
.card p { margin: 0; color: var(--muted); font-size: .96rem; }
.icon { display: inline-flex; align-items: center; justify-content: center; min-width: 1.8rem; min-height: 1.8rem; padding: 3px 7px; font: 900 1.05rem/1 ui-monospace, monospace; }
.icon.coral { color: var(--coral); background: var(--coral-soft); }
.icon.amber { color: var(--amber); background: var(--amber-soft); }
.icon.teal { color: var(--teal); background: var(--teal-soft); }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; counter-reset: step; }
.step { position: relative; padding: 24px 20px; border-top: 1px solid var(--ink); }
.step::before { counter-increment: step; content: "0" counter(step); display: block; color: var(--indigo); font: 800 .8rem ui-monospace, monospace; }
.step h3 { margin: 15px 0 6px; }
.step p { color: var(--muted); margin: 0; font-size: .94rem; }

.feature { display: grid; grid-template-columns: 230px 1fr; gap: 24px; padding: 22px 0; border-top: 1px solid var(--line); }
.feature:first-child { border-top: 0; }
.feature b { color: var(--indigo-deep); }
.feature p { color: var(--muted); margin: 0; }

.quick { display: grid; grid-template-columns: .9fr 1.1fr; gap: 32px; align-items: center; padding: 34px; border: 1px solid var(--indigo-deep); background: var(--indigo); color: #fff; }
.quick .eyebrow { background: #fff; color: var(--indigo-deep); }
.quick h2 { margin-top: 0; }
.quick p { opacity: .93; }
.quick .terminal { background: #1f2420; }
.button.light { border-color: #fff; background: #fff; color: var(--indigo-deep); }
.button.light:hover { background: var(--indigo-soft); }
.quick a:focus-visible, .quick button:focus-visible { outline-color: #fff; box-shadow: 0 0 0 6px var(--amber-soft); }

.footer { padding: 38px 0; color: var(--muted); font-size: .9rem; }
.footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

.workflow-page { background: var(--paper); }
.workflow-hero { overflow: hidden; background: radial-gradient(circle at 81% 27%, #e7e7fa 0, transparent 26rem), var(--paper); }
.workflow-intro { display: grid; grid-template-columns: minmax(0, 1fr) 270px; gap: clamp(38px, 8vw, 126px); align-items: end; padding: 48px 0 74px; }
.workflow-intro h1 { max-width: 680px; }
.workflow-intro .lead { max-width: 620px; }
.back-link { display: inline-flex; gap: 8px; margin-bottom: 30px; color: var(--muted); font-size: .9rem; font-weight: 750; text-decoration: none; }
.back-link:hover { color: var(--indigo-deep); }
.workflow-principles { position: relative; padding: 20px 0 3px 23px; border-left: 2px solid var(--teal); color: var(--muted); }
.workflow-principles p { margin: 0 0 7px; color: var(--teal); font-size: .78rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.workflow-principles ul { margin: 0; padding-left: 18px; font-size: .92rem; }
.workflow-principles li + li { margin-top: 4px; }

.workflow-section { padding: 82px 0 98px; }
.workflow-wrap { display: grid; grid-template-columns: 188px minmax(0, 1fr); gap: clamp(28px, 6vw, 100px); align-items: start; }
.workflow-context { position: sticky; top: 24px; padding-top: 15px; border-top: 1px solid var(--indigo); color: var(--muted); font-size: .88rem; }
.workflow-context span { color: var(--indigo-deep); font-size: .76rem; font-weight: 850; letter-spacing: .09em; text-transform: uppercase; }
.workflow-context p { margin: 10px 0 0; }
.workflow-route { position: relative; max-width: 790px; }
.workflow-route::before { position: absolute; top: 24px; bottom: 25px; left: 24px; width: 1px; background: var(--line); content: ""; }
.route-step { position: relative; padding: 0 0 64px 82px; }
.route-step::before { position: absolute; z-index: 1; top: 12px; left: 17px; width: 15px; height: 15px; border: 3px solid var(--paper); border-radius: 50%; background: var(--indigo); box-shadow: 0 0 0 1px var(--indigo); content: ""; }
.route-number { display: block; color: var(--indigo); font: 800 .78rem/1 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; letter-spacing: .04em; }
.route-step > .route-number { position: absolute; top: 14px; left: 0; width: 12px; overflow: visible; transform: translateX(-29px) rotate(-90deg); transform-origin: center; }
.route-copy h2, .route-decision h2 { margin: 8px 0 13px; font-size: clamp(1.55rem, 2.5vw, 2.25rem); }
.route-copy > p { max-width: 660px; margin: 0; color: var(--muted); }
.creation-condition { max-width: 660px; margin: 15px 0 -8px; padding-left: 14px; border-left: 2px solid var(--amber); color: var(--muted); font-size: .93rem; }
.workflow-command { max-width: 535px; }
.workflow-command .command-note { max-width: 510px; }

.route-decision { position: relative; margin: 0 0 64px 82px; padding: 0 0 0; }
.route-decision::before { position: absolute; z-index: 1; top: 10px; left: -65px; width: 15px; height: 15px; border: 3px solid var(--paper); border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 1px var(--amber); content: ""; }
.route-decision > div:first-child > .route-number { margin-bottom: 10px; color: var(--amber); }
.branch-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; margin-top: 28px; }
.branch { padding: 20px 0 0; border-top: 3px solid var(--line); }
.branch-clear { border-color: var(--teal); }
.branch-review { border-color: var(--amber); }
.branch-state { color: var(--muted); font-size: .76rem; font-weight: 850; letter-spacing: .09em; text-transform: uppercase; }
.branch-clear .branch-state { color: var(--teal); }
.branch-review .branch-state { color: var(--amber); }
.branch h3 { margin: 11px 0 8px; font-size: 1.22rem; }
.branch p { margin: 0; color: var(--muted); font-size: .93rem; }
.branch > a { display: inline-flex; gap: 7px; margin-top: 18px; color: var(--indigo-deep); font-size: .9rem; font-weight: 800; text-decoration: none; }
.branch > a:hover { color: var(--indigo); }
.compact-command { margin-top: 20px; padding-left: 15px; }
.compact-command .command-row { gap: 7px; }
.compact-command .command-row code { padding: 8px 9px; font-size: .78rem; }
.compact-command .copy-button { padding: 8px 10px; font-size: .78rem; }
.compact-command .command-note { font-size: .76rem; }
.route-step-final { padding-bottom: 0; }
.route-step-final::before { background: var(--teal); box-shadow: 0 0 0 1px var(--teal); }

.workflow-support { padding: 75px 0; border-block: 1px solid var(--line); background: var(--surface); }
.support-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(36px, 8vw, 120px); }
.support-grid article { padding-top: 20px; border-top: 3px solid var(--indigo); }
.support-grid article + article { border-color: var(--teal); }
.support-grid h2 { max-width: 440px; font-size: clamp(1.45rem, 2.4vw, 2rem); }
.support-grid p { max-width: 500px; color: var(--muted); }
.inline-command { display: inline-block; max-width: 100%; overflow-x: auto; padding: 8px 10px; background: var(--paper); color: var(--indigo-deep); white-space: nowrap; }

@media (max-width: 760px) {
  .hero-grid, .quick { grid-template-columns: 1fr; gap: 26px; }
  .hero-art { margin: 0; }
  .grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .feature { grid-template-columns: 1fr; gap: 7px; }
  section { padding: 58px 0; }
  .workflow-intro, .workflow-wrap, .support-grid { grid-template-columns: 1fr; }
  .workflow-intro { gap: 32px; padding: 35px 0 58px; }
  .workflow-context { position: static; max-width: 520px; }
  .workflow-section { padding: 58px 0 70px; }
  .workflow-route::before { left: 18px; }
  .route-step { padding-left: 58px; }
  .route-step::before { left: 11px; }
  .route-step > .route-number { left: 0; transform: translateX(-25px) rotate(-90deg); }
  .route-decision { margin-left: 58px; }
  .route-decision::before { left: -47px; }
  .branch-grid { grid-template-columns: 1fr; gap: 30px; }
  .workflow-support { padding: 58px 0; }
}

@media (max-width: 430px) {
  .wrap { width: min(100% - 28px, 1080px); }
  .nav { padding: 15px 0; }
  .hero-grid { padding: 40px 0 55px; }
  .steps { grid-template-columns: 1fr; }
  .quick { padding: 25px; }
  .terminal { padding: 18px; font-size: .76rem; }
  .command-row { flex-direction: column; }
  .copy-button { width: 100%; }
}