:root { --ink: #151612; --paper: #f1efe8; --white: #fbfaf5; --line: #cbc8bd; --acid: #d9ff43; --muted: #6f7169; --danger: #9a3726; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif; }
button, input, textarea { font: inherit; }
button { color: inherit; }
button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 3px solid #89a900; outline-offset: 3px; }
.hidden { display: none !important; }
.visuallyHidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.topbar { height: 78px; padding: 0 5vw; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 11px; color: inherit; text-decoration: none; }
.brandMark { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: var(--acid); font-family: Georgia, serif; font-style: italic; font-weight: 700; }
.brand > span:last-child { display: flex; flex-direction: column; gap: 2px; }
.brand strong { font-size: 16px; letter-spacing: .05em; }
.brand small { color: var(--muted); font-size: 9px; letter-spacing: .08em; }
.localBadge { display: flex; align-items: center; gap: 9px; color: #4d5147; font-size: 12px; }
.localBadge i { width: 8px; height: 8px; border-radius: 50%; background: #75a400; box-shadow: 0 0 0 4px #dbe7b6; }
.shortCopy { display: none; }
.hero { padding: 78px 5vw 72px; border-bottom: 1px solid var(--line); }
.breadcrumb { margin-bottom: 54px; display: flex; align-items: center; gap: 14px; color: var(--muted); font: 700 10px ui-monospace, monospace; }
.breadcrumb a { padding: 8px 11px; border: 1px solid var(--line); background: #e8e6de; color: var(--ink); text-decoration: none; }
.breadcrumb a:visited { color: var(--ink); }
.breadcrumb a:hover { background: var(--ink); color: var(--acid); }
.breadcrumb span::before { content: "/"; margin-right: 14px; color: #a2a49b; }
.eyebrow { margin: 0; font: 700 10px ui-monospace, monospace; letter-spacing: .2em; }
.hero h1 { max-width: 1200px; margin: 22px 0 30px; font-size: clamp(48px, 6.8vw, 102px); line-height: .93; letter-spacing: -.065em; }
.hero h1 em { color: #74776e; font-family: Georgia, "Songti SC", serif; font-weight: 400; }
.heroIntro { max-width: 760px; margin: 0; color: #595c55; font-size: 15px; line-height: 1.85; }
.workbench { margin: 70px 5vw 92px; display: grid; grid-template-columns: minmax(320px, .72fr) minmax(620px, 1.28fr); border: 1px solid var(--line); background: var(--white); box-shadow: 0 22px 60px rgb(45 46 39 / 8%); }
.sourcePanel { min-height: 900px; padding: 28px; background: #1a1b18; color: #fff; }
.dropzone { height: 100%; min-height: 844px; padding: 35px; border: 1px dashed #6c6e66; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.dropzone.dragging { border-color: var(--acid); background: #24261e; }
.markPreview { width: 116px; height: 116px; position: relative; display: grid; place-items: center; border: 1px solid #74766e; border-radius: 50%; }
.markPreview span { position: relative; z-index: 2; color: var(--acid); font: 700 14px ui-monospace, monospace; }
.markPreview i { position: absolute; width: 62px; height: 1px; background: #76786f; transform: rotate(0deg); }
.markPreview i:nth-of-type(2) { transform: rotate(60deg); }
.markPreview i:nth-of-type(3) { transform: rotate(120deg); }
.dropzone h2 { margin: 34px 0 11px; font-size: 24px; }
.dropzone p { max-width: 380px; margin: 0; color: #a6a89f; font-size: 12px; line-height: 1.8; }
.dropzone small { margin-top: 20px; color: #777970; font: 9px ui-monospace, monospace; letter-spacing: .15em; }
.primaryButton { margin-top: 30px; padding: 13px 28px; border: 0; background: var(--acid); font-weight: 800; cursor: pointer; }
.imageStage { min-height: 844px; height: 100%; display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; }
.imageStage img { max-width: 100%; max-height: 740px; object-fit: contain; box-shadow: 0 14px 45px #0009; }
.imageMeta { position: absolute; left: 0; right: 0; bottom: 0; padding: 12px; display: flex; justify-content: space-between; background: #0a0b09e8; color: #d2d3cd; font: 10px ui-monospace, monospace; }
.replaceButton { position: absolute; top: 0; right: 0; padding: 9px 13px; border: 1px solid #777; background: #111b; color: #fff; cursor: pointer; }
.configuration { min-width: 0; }
.moduleIntro { min-height: 74px; padding: 20px 30px; display: flex; align-items: center; gap: 25px; border-bottom: 1px solid var(--line); }
.moduleIntro span { font: 700 10px ui-monospace, monospace; letter-spacing: .15em; }
.moduleIntro p { margin: 0; color: var(--muted); font-size: 11px; }
.module { display: grid; grid-template-columns: 72px 1fr; border-bottom: 1px solid var(--line); }
.moduleRail { padding: 34px 0; display: flex; flex-direction: column; align-items: center; justify-content: space-between; border-right: 1px solid var(--line); color: #86887f; font: 700 10px ui-monospace, monospace; }
.moduleBody { padding: 32px 36px 38px; }
.moduleHeading { margin-bottom: 27px; display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.moduleHeading h2 { margin: 0 0 6px; font-size: 20px; }
.moduleHeading p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.6; }
.moduleHeading > b { padding: 5px 7px; border: 1px solid var(--line); color: #74766e; font: 700 8px ui-monospace, monospace; white-space: nowrap; }
.toggle input { position: absolute; opacity: 0; }
.toggle i { width: 40px; height: 22px; padding: 3px; display: block; border-radius: 20px; background: #c3c4bd; cursor: pointer; transition: .2s; }
.toggle i::after { content: ""; width: 16px; height: 16px; display: block; border-radius: 50%; background: #fff; transition: .2s; }
.toggle input:checked + i { background: var(--ink); }
.toggle input:checked + i::after { transform: translateX(18px); background: var(--acid); }
.twoFields { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.field, .twoFields label { margin-bottom: 18px; display: flex; flex-direction: column; gap: 8px; }
.field > span, .twoFields label > span { color: #71736b; font-size: 10px; }
input[type="text"], textarea { width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 0; background: #f7f5ee; color: var(--ink); outline: none; font-size: 12px; }
textarea { resize: vertical; line-height: 1.6; }
.strengthRow { display: grid; grid-template-columns: 90px 1fr 92px; gap: 16px; align-items: center; }
.strengthRow label, .strengthRow output { color: #71736b; font-size: 10px; }
input[type="range"] { width: 100%; accent-color: var(--ink); }
.moduleNote { margin: 20px 0 0; padding: 12px 14px; background: #ebe9e1; color: #686a63; font-size: 10px; line-height: 1.75; }
.module.off .moduleBody { opacity: .38; pointer-events: none; }
.packageContents { display: flex; flex-wrap: wrap; gap: 7px; }
.packageContents span { padding: 7px 9px; border: 1px solid var(--line); background: #f4f2eb; font: 9px ui-monospace, monospace; }
.analysisSection { padding: 98px 5vw; background: var(--ink); color: #f8f6ee; }
.analysisTitle { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: end; }
.analysisTitle .eyebrow { grid-column: 1 / -1; color: var(--acid); }
.analysisTitle h2 { margin: 10px 0 0; font-size: clamp(42px, 5vw, 70px); letter-spacing: -.05em; }
.analysisTitle > p:last-child { margin: 0; color: #aeb0a7; font-size: 12px; line-height: 1.8; }
.analysisGrid { margin-top: 50px; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid #4a4c45; border-left: 1px solid #4a4c45; }
.analysisGrid > div { min-height: 170px; padding: 25px; display: flex; flex-direction: column; border-right: 1px solid #4a4c45; border-bottom: 1px solid #4a4c45; }
.analysisGrid span { color: #9fa198; font-size: 10px; }
.analysisGrid strong { margin-top: auto; color: var(--acid); font: 700 clamp(19px, 2.2vw, 32px) ui-monospace, monospace; }
.analysisGrid small { margin-top: 7px; color: #909289; font-size: 9px; }
.interpretation { margin-top: 22px; padding: 22px 25px; border: 1px solid #4a4c45; color: #d7d8d2; font-size: 12px; line-height: 1.8; }
.resultSection { padding: 60px 5vw; display: grid; grid-template-columns: .65fr 1.35fr; gap: 50px; border-bottom: 1px solid var(--line); }
.resultStatus { display: flex; flex-direction: column; justify-content: center; }
.resultStatus span { color: var(--muted); font-size: 11px; }
.resultStatus strong { margin-top: 12px; word-break: break-all; font: 700 13px/1.6 ui-monospace, monospace; }
.resultActions { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.resultActions button, .verifyForm button { min-height: 52px; padding: 12px; border: 1px solid var(--ink); background: transparent; font-size: 11px; font-weight: 700; cursor: pointer; }
.resultActions .processButton { background: var(--acid); }
.resultActions button:disabled { opacity: .35; cursor: not-allowed; }
.error { grid-column: 1 / -1; margin: 14px 0 0; padding: 12px; background: #ffe4df; color: var(--danger); font-size: 11px; }
.verifySection { padding: 90px 5vw; display: grid; grid-template-columns: .7fr 1.3fr; gap: 7vw; }
.verifySection h2 { margin: 15px 0; font-size: 42px; letter-spacing: -.04em; }
.verifySection p:not(.eyebrow) { color: var(--muted); font-size: 12px; line-height: 1.8; }
.verifyForm { display: grid; grid-template-columns: repeat(2, 1fr); gap: 9px; }
.verifyForm input { min-width: 0; padding: 12px; border: 1px solid var(--line); background: var(--white); font-size: 11px; }
.verifyForm button { background: var(--ink); color: var(--acid); }
.verifyForm output { padding: 16px; display: flex; align-items: center; border: 1px solid var(--line); font-size: 11px; }
.verifyForm output.success { background: #e8f1c9; color: #365000; }
.verifyForm output.fail { background: #f4dfda; color: #7e2d20; }
.boundaries { margin: 0 5vw 80px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.boundaries > div { padding: 30px 3vw 0 0; border-right: 1px solid var(--line); }
.boundaries > div + div { padding-left: 3vw; }
.boundaries > div:last-child { border-right: 0; }
.boundaries span { color: #8a8c83; font: 10px ui-monospace, monospace; }
.boundaries h3 { margin: 18px 0 8px; font-size: 14px; }
.boundaries p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.75; }
.siteFooter { padding: 36px 5vw 38px; display: grid; grid-template-columns: minmax(260px, .75fr) minmax(0, 1.25fr); align-items: start; gap: 48px; border-top: 1px solid var(--line); color: #696c64; font: 12px/1.6 ui-monospace, monospace; letter-spacing: .02em; }
.footerBrand { display: flex; flex-direction: column; gap: 7px; }
.footerBrand strong { color: var(--ink); font-size: 14px; line-height: 1.35; letter-spacing: .01em; }
.footerLinks { display: grid; grid-template-columns: repeat(3, max-content); justify-content: end; gap: 12px 30px; }
.footerLinks a, .footerLinks a:visited { color: var(--ink); text-decoration: none; border-bottom: 1px solid #9a9c94; padding-bottom: 3px; white-space: nowrap; }
.footerLinks a:hover { border-color: var(--ink); }

@media (max-width: 1000px) {
  .workbench { grid-template-columns: 1fr; }
  .sourcePanel { min-height: 540px; }
  .dropzone, .imageStage { min-height: 484px; }
  .analysisTitle, .resultSection, .verifySection { grid-template-columns: 1fr; }
  .analysisGrid { grid-template-columns: repeat(2, 1fr); }
  .siteFooter { grid-template-columns: 1fr; gap: 26px; }
  .footerLinks { justify-content: start; }
}
@media (max-width: 640px) {
  .topbar { height: 68px; padding: 8px 16px; }
  .brand { gap: 8px; }
  .brandMark { width: 30px; height: 30px; }
  .brand strong { font-size: 14px; }
  .wideCopy { display: none; }
  .shortCopy { display: inline; }
  .localBadge { padding: 8px 10px; border-radius: 20px; background: #e4ead0; font-size: 10px; }
  .hero { padding: 55px 20px; }
  .breadcrumb { margin-bottom: 35px; gap: 8px; font-size: 9px; }
  .breadcrumb span::before { margin-right: 8px; }
  .hero h1 { font-size: 50px; }
  .heroIntro { font-size: 13px; }
  .workbench { margin: 38px 16px 65px; }
  .sourcePanel { min-height: 420px; padding: 16px; }
  .dropzone, .imageStage { min-height: 386px; }
  .dropzone { padding: 22px; }
  .module { grid-template-columns: 50px 1fr; }
  .moduleBody { padding: 26px 18px 30px; }
  .moduleHeading { flex-direction: column; }
  .twoFields { grid-template-columns: 1fr; gap: 0; }
  .strengthRow { grid-template-columns: 1fr; gap: 8px; }
  .analysisSection { padding: 70px 16px; }
  .analysisGrid { grid-template-columns: 1fr; }
  .resultSection, .verifySection { padding: 60px 16px; }
  .resultActions, .verifyForm { grid-template-columns: 1fr; }
  .boundaries { margin: 0 16px 60px; grid-template-columns: 1fr; }
  .boundaries > div, .boundaries > div + div { padding: 25px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .siteFooter { padding: 30px 20px 34px; gap: 24px; }
  .footerLinks { grid-template-columns: 1fr; gap: 13px; }
  .footerLinks a { white-space: normal; overflow-wrap: anywhere; }
}