:root {
  --ink: #142023;
  --ink-soft: #526064;
  --paper: #f4f4ef;
  --paper-deep: #e8e9e2;
  --line: #d6d9d1;
  --dark: #101719;
  --dark-soft: #182225;
  --dark-line: #304044;
  --lime: #c6df85;
  --lime-deep: #8eaf45;
  --blue: #9dc8da;
  --amber: #e6c28b;
  --white: #f4f6ef;
  --shadow: 0 18px 42px rgba(15, 24, 26, 0.1);
  --radius: 8px;
  --font-ui: "Microsoft YaHei UI", "Microsoft YaHei", "PingFang SC", "Noto Sans SC", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

button, a { font: inherit; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; }
img { max-width: 100%; }

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1240px, calc(100% - 64px));
  height: 76px;
  margin: 0 auto;
  transition: background 180ms ease, border 180ms ease, height 180ms ease;
}

.site-header.scrolled {
  height: 64px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 0 0 var(--radius) var(--radius);
  background: rgba(16, 23, 25, 0.9);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(198, 223, 133, 0.58);
  border-radius: 50%;
  color: var(--lime);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.brand-text { display: grid; gap: 0; }
.brand-text strong { color: var(--white); font-size: 14px; line-height: 1.1; font-weight: 700; }
.brand-text small { margin-top: 3px; color: rgba(244, 246, 239, 0.45); font-size: 12px; letter-spacing: 0.08em; line-height: 1; }

.site-nav { display: flex; align-items: center; gap: 32px; margin-left: auto; margin-right: 42px; }
.site-nav a { color: rgba(244, 246, 239, 0.68); font-size: 13px; transition: color 160ms ease; }
.site-nav a:hover { color: var(--lime); }

.header-action {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--lime);
  font-size: 13px;
  font-weight: 700;
}
.header-action span { font-size: 17px; line-height: 1; }
.mobile-menu { display: none; color: var(--lime); border: 0; background: transparent; font-size: 12px; }

.section-dark {
  color: var(--white);
  background: var(--dark);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.87fr) minmax(420px, 1.13fr);
  gap: clamp(40px, 7vw, 110px);
  min-height: 760px;
  padding: 162px max(32px, calc((100% - 1240px) / 2)) 102px;
  overflow: hidden;
}

.hero-copy { align-self: center; max-width: 570px; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--lime);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.eyebrow span { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.eyebrow-dark { color: var(--lime-deep); }
.hero h1, .section-heading h2, .contact-main h2 {
  margin: 28px 0 0;
  font-family: var(--font-ui);
  font-size: clamp(46px, 5.8vw, 84px);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.08;
}
.hero h1 em, .section-heading h2 em, .contact-main h2 em, .guard-copy h2 em { color: var(--lime); font-style: normal; }
.hero-lede { max-width: 500px; margin: 28px 0 0; color: rgba(244, 246, 239, 0.67); font-size: 16px; line-height: 1.85; }
.hero-actions { display: flex; align-items: center; gap: 26px; margin-top: 36px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--dark); background: var(--lime); }
.button-primary:hover { background: #d4ea9b; }
.button-large { min-height: 56px; padding: 0 25px; }
.text-link { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); font-size: 13px; font-weight: 700; }
.text-link span { font-size: 18px; line-height: 1; transition: transform 160ms ease; }
.text-link:hover span { transform: translateX(4px); }
.text-link-light { color: rgba(244, 246, 239, 0.78); }

.hero-product {
  display: grid;
  grid-template-columns: 1fr 96px;
  align-items: center;
  gap: 16px;
  max-width: 560px;
  margin-top: 30px;
  padding: 14px 16px 14px 18px;
  border: 1px solid rgba(198, 223, 133, 0.18);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(23, 34, 37, 0.95), rgba(18, 27, 29, 0.95));
  box-shadow: inset 0 1px 0 rgba(244, 246, 239, 0.05);
}
.hero-product-copy { min-width: 0; }
.hero-product-copy > span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--lime);
  font-size: 12px;
  font-weight: 700;
}
.hero-product-copy > span::before {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  content: "";
  background: currentColor;
}
.hero-product strong { display: block; margin-top: 8px; color: var(--white); font-size: 17px; line-height: 1.35; }
.hero-product p { max-width: 380px; margin: 6px 0 12px; color: rgba(244, 246, 239, 0.62); font-size: 13px; line-height: 1.65; }
.hero-product-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: rgba(244, 246, 239, 0.58);
  font-size: 12px;
}
.hero-product-flow b { font-weight: 500; }
.hero-product-flow i {
  width: 18px;
  height: 1px;
  background: rgba(198, 223, 133, 0.38);
}
.hero-product-qr {
  display: grid;
  justify-items: center;
  gap: 7px;
  padding: 7px;
  border: 1px solid rgba(244, 246, 239, 0.08);
  border-radius: 7px;
  background: rgba(244, 246, 239, 0.06);
}
.hero-product-qr img {
  display: block;
  width: 78px;
  height: 78px;
  object-fit: cover;
  border-radius: 5px;
  background: #fff;
}
.hero-product-qr span { color: rgba(244, 246, 239, 0.5); font-size: 12px; line-height: 1; }

.hero-meta {
  display: flex;
  gap: 48px;
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid var(--dark-line);
}
.hero-meta div { display: grid; gap: 1px; }
.hero-meta strong { color: var(--lime); font-family: var(--font-ui); font-size: 28px; font-weight: 700; line-height: 1; }
.hero-meta span { color: rgba(244, 246, 239, 0.48); font-size: 12px; }

.hero-visual { position: relative; align-self: center; min-height: 510px; padding: 28px 24px 24px; border: 1px solid #3b4b4e; background: #162024; box-shadow: 20px 24px 0 rgba(198, 223, 133, 0.14); }
.visual-topline { display: flex; justify-content: space-between; color: rgba(244, 246, 239, 0.42); font-family: Consolas, monospace; font-size: 12px; letter-spacing: 0.08em; }
.visual-window { margin-top: 22px; border: 1px solid #415154; background: #ecede5; color: var(--ink); box-shadow: 12px 14px 0 rgba(4, 9, 10, 0.28); }
.window-bar, .window-footer { display: flex; align-items: center; justify-content: space-between; min-height: 36px; padding: 0 12px; border-bottom: 1px solid #d5d8d0; color: #697478; font-family: Consolas, monospace; font-size: 12px; }
.window-footer { border-top: 1px solid #d5d8d0; border-bottom: 0; color: #6f8c3b; }
.window-dots { display: inline-flex; gap: 4px; }
.window-dots i { width: 6px; height: 6px; border-radius: 50%; background: #a1aba6; }
.window-status { color: #6d9035; }
.window-body { display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr); gap: 18px; padding: 18px; }
.window-art { display: grid; gap: 8px; }
.window-art img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border: 1px solid #c8cec7; }
.art-label { color: #7b8588; font-family: Consolas, monospace; font-size: 12px; }
.window-insight { display: grid; align-content: start; gap: 15px; }
.insight-title { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.insight-title span { font-size: 13px; font-weight: 800; }
.insight-title b { padding: 5px 6px; color: #5f8030; background: #dfeac5; font-size: 12px; font-weight: 700; letter-spacing: 0.02em; }
.window-insight p { margin: 0; color: #687277; font-size: 12px; line-height: 1.7; }
.score-list { display: grid; gap: 9px; }
.score-list div { display: grid; grid-template-columns: 42px 1fr 28px; align-items: center; gap: 7px; color: #7a8586; font-size: 12px; }
.score-list i { height: 5px; overflow: hidden; background: #d8ddd4; }
.score-list i b { display: block; height: 100%; background: #9ebd5c; }
.score-list strong { color: #374342; font-family: Consolas, monospace; font-size: 12px; }
.next-step { display: grid; gap: 5px; padding: 10px; border-left: 2px solid #a6c769; background: #e1e8d6; }
.next-step small { color: #76904a; font-family: Consolas, monospace; font-size: 12px; letter-spacing: 0.04em; }
.next-step strong { color: #4c5e43; font-size: 12px; line-height: 1.5; }
.visual-note { position: absolute; display: flex; align-items: center; gap: 7px; padding: 8px 10px; border: 1px solid #4a5b5f; color: rgba(244, 246, 239, 0.65); background: #101719; font-family: Consolas, monospace; font-size: 12px; letter-spacing: 0.03em; }
.visual-note span { color: var(--lime); }
.note-one { right: -14px; bottom: 72px; }
.note-two { bottom: 10px; left: -18px; }

.signal-strip { display: flex; align-items: center; justify-content: space-between; gap: 30px; min-height: 88px; padding: 0 max(32px, calc((100% - 1240px) / 2)); border-bottom: 1px solid var(--line); background: #ebede5; }
.signal-strip p { margin: 0; color: #788183; font-size: 12px; }
.signal-items { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 25px; color: #8a9290; font-family: Consolas, monospace; font-size: 12px; letter-spacing: 0.04em; text-transform: uppercase; }
.signal-items span::before { display: inline-block; width: 4px; height: 4px; margin: 0 8px 2px 0; border-radius: 50%; content: ""; background: #b7c3b1; }

.section { padding: 130px max(32px, calc((100% - 1240px) / 2)); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 60px; margin-bottom: 65px; }
.section-heading h2 { max-width: 710px; margin-top: 21px; color: var(--ink); font-size: clamp(37px, 4.3vw, 63px); }
.section-heading p { max-width: 320px; margin: 0 0 7px; color: var(--ink-soft); font-size: 14px; line-height: 1.85; }
.heading-compact { margin-bottom: 50px; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.feature-card { position: relative; display: flex; flex-direction: column; min-height: 320px; padding: 27px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #f7f8f2; }
.feature-card h3 { margin: auto 0 15px; font-size: 25px; line-height: 1.25; font-weight: 700; }
.feature-card p { max-width: 290px; margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.75; }
.card-index { color: #8b9691; font-family: Consolas, monospace; font-size: 12px; letter-spacing: 0.04em; }
.feature-card-dark { color: var(--white); border-color: var(--dark); background: var(--dark); }
.feature-card-dark p { color: rgba(244, 246, 239, 0.61); }
.feature-card-dark .card-index { color: var(--lime); }
.feature-card-amber { background: #eee4d1; border-color: #e1d0b0; }
.feature-card-blue { background: #dfeaf0; border-color: #c4d9e1; }
.feature-card-image { padding: 0; color: var(--white); border-color: var(--dark); background: var(--dark); }
.feature-card-image > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.43; filter: saturate(0.7); }
.feature-card-image::after { position: absolute; inset: 0; content: ""; background: rgba(16, 23, 25, 0.52); }
.image-card-overlay { position: relative; z-index: 1; display: flex; flex-direction: column; height: 100%; padding: 27px; }
.image-card-overlay .card-index { color: var(--lime); }
.image-card-overlay h3 { margin-top: auto; }
.image-card-overlay p { color: rgba(244, 246, 239, 0.7); }
.role-stack { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 24px; }
.role-stack span { padding: 6px 8px; border: 1px solid #3c4c4e; color: rgba(244, 246, 239, 0.75); font-family: Consolas, monospace; font-size: 12px; }
.mini-timeline { display: flex; align-items: center; gap: 0; margin-top: 27px; }
.mini-timeline span { position: relative; width: 25%; height: 1px; background: #b8c2b7; }
.mini-timeline span::after { position: absolute; top: -3px; right: -2px; width: 7px; height: 7px; border-radius: 50%; content: ""; background: #91ad6c; }
.ai-chip { display: flex; align-items: center; gap: 10px; margin-top: 26px; }
.ai-chip span { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; color: #705a2c; background: #f8e1ae; font-family: Consolas, monospace; font-size: 12px; font-weight: 800; }
.ai-chip b { color: #917b53; font-family: Consolas, monospace; font-size: 12px; letter-spacing: 0.04em; }
.invite-code { display: flex; align-items: end; justify-content: space-between; gap: 10px; margin-top: 25px; padding-top: 13px; border-top: 1px solid #d2d5cd; }
.invite-code small { display: grid; gap: 3px; color: #89918c; font-family: Consolas, monospace; font-size: 12px; letter-spacing: 0.04em; }
.invite-code strong { color: #4c5f55; font-family: Consolas, monospace; font-size: 20px; letter-spacing: 0.08em; }
.invite-code span { color: #84917a; font-size: 12px; }
.security-row { display: flex; align-items: center; gap: 9px; margin-top: 25px; color: #6e858c; font-family: Consolas, monospace; font-size: 12px; }
.security-row b { padding: 5px 8px; color: #3c6878; background: #c6dbe4; font-weight: 700; }
.security-row i { margin-left: auto; color: #6891a0; font-style: normal; font-size: 12px; letter-spacing: 0.04em; }

.reality-section { border-top: 1px solid var(--line); background: #f0f1eb; }
.reality-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(330px, 0.92fr); gap: 16px; }
.reality-card { display: grid; grid-template-rows: minmax(300px, 1fr) auto; overflow: hidden; border: 1px solid #d0d5cb; border-radius: var(--radius); background: #f8f9f3; }
.reality-card-large { grid-template-rows: minmax(360px, 1fr) auto; }
.reality-image-wrap { min-height: 0; padding: 18px; background: #e4e7df; }
.reality-image-wrap img { display: block; width: 100%; height: 100%; max-height: 590px; object-fit: cover; object-position: top center; border: 1px solid #cbd0c7; box-shadow: 8px 8px 0 rgba(67, 80, 73, 0.08); }
.reality-image-detail img { object-position: center 17%; }
.reality-copy { padding: 25px 26px 28px; }
.reality-copy h3 { max-width: 530px; margin: 12px 0 10px; font-size: 23px; line-height: 1.35; }
.reality-copy p { max-width: 560px; margin: 0; color: var(--ink-soft); font-size: 13px; line-height: 1.75; }

.workflow-section { padding-bottom: 104px; border-top: 1px solid var(--line); background: #e9ebe3; }
.workflow-line { display: grid; grid-template-columns: 1fr 72px 1fr 72px 1fr 72px 1fr; align-items: stretch; }
.workflow-step { min-height: 238px; padding: 23px; border: 1px solid #cbd0c7; background: #f6f7f1; }
.step-number { color: #8a9791; font-family: Consolas, monospace; font-size: 12px; }
.step-icon { display: grid; place-items: center; width: 46px; height: 46px; margin: 31px 0 24px; border: 1px solid #a9b99a; border-radius: 50%; color: #789345; font-family: Consolas, monospace; font-size: 12px; font-weight: 700; }
.workflow-step h3 { margin: 0; font-size: 19px; }
.workflow-step p { margin: 10px 0 0; color: var(--ink-soft); font-size: 12px; line-height: 1.7; }
.workflow-connector { align-self: center; height: 1px; background: #b4c1ab; }
.workflow-foot { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 31px; color: #7a8781; font-size: 12px; }

.roles-section { padding-top: 126px; padding-bottom: 136px; }
.roles-heading { margin-bottom: 50px; }
.roles-heading h2 { color: var(--white); }
.roles-heading p { color: rgba(244, 246, 239, 0.55); }
.role-showcase { display: grid; grid-template-columns: 190px 1fr; gap: 34px; }
.role-tabs { display: grid; align-content: start; gap: 8px; }
.role-tab { display: grid; grid-template-columns: 29px 1fr auto; align-items: center; gap: 6px; min-height: 72px; padding: 12px 10px; border: 1px solid transparent; color: rgba(244, 246, 239, 0.45); background: transparent; text-align: left; }
.role-tab span { align-self: start; font-family: Consolas, monospace; font-size: 12px; }
.role-tab strong { font-size: 14px; }
.role-tab small { grid-column: 2 / -1; color: inherit; font-size: 12px; }
.role-tab b { grid-row: 1 / span 2; grid-column: 3; font-size: 16px; font-weight: 400; }
.role-tab.active { border-color: #39484b; color: var(--lime); background: #192528; }
.role-panel { display: grid; grid-template-columns: minmax(0, 0.86fr) minmax(350px, 1.14fr); gap: 50px; min-height: 420px; padding: 34px; border: 1px solid #334346; background: #172225; }
.role-panel-copy { align-self: center; }
.panel-label { color: #879c8c; font-family: Consolas, monospace; font-size: 12px; letter-spacing: 0.04em; }
.role-panel-copy h3 { max-width: 430px; margin: 21px 0 16px; font-family: var(--font-ui); font-size: clamp(29px, 3.4vw, 45px); font-weight: 700; line-height: 1.18; }
.role-panel-copy p { max-width: 455px; margin: 0; color: rgba(244, 246, 239, 0.61); font-size: 14px; line-height: 1.8; }
.check-list { display: grid; gap: 11px; margin: 25px 0 0; padding: 0; list-style: none; color: rgba(244, 246, 239, 0.78); font-size: 12px; }
.check-list li::before { display: inline-block; width: 15px; margin-right: 5px; color: var(--lime); content: "✓"; font-family: Consolas, monospace; }
.role-panel-visual { align-self: center; min-height: 318px; padding: 17px; border: 1px solid #46585a; background: #ecede5; color: var(--ink); }
.dashboard-header { display: flex; align-items: center; justify-content: space-between; padding-bottom: 14px; border-bottom: 1px solid #ccd1c8; color: #707b79; font-family: Consolas, monospace; font-size: 12px; }
.dashboard-hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 14px; margin-top: 18px; }
.dashboard-hero img { width: 100%; aspect-ratio: 1.38; object-fit: cover; }
.dashboard-hero div { display: grid; align-content: center; gap: 6px; }
.dashboard-hero small, .dashboard-hero span { color: #7d8886; font-size: 12px; }
.dashboard-hero strong { font-size: 18px; }
.dashboard-list { display: grid; gap: 0; margin-top: 18px; border-top: 1px solid #d3d6ce; }
.dashboard-list span { display: grid; grid-template-columns: 55px 1fr auto; align-items: center; min-height: 32px; border-bottom: 1px solid #d3d6ce; color: #667171; font-size: 12px; }
.dashboard-list b { color: #8b9893; font-family: Consolas, monospace; font-weight: 400; }
.dashboard-list i { color: #769345; font-style: normal; font-size: 12px; }
.review-item { display: grid; grid-template-columns: 68px 1fr 18px; align-items: center; gap: 12px; padding: 17px 0; border-bottom: 1px solid #d3d6ce; }
.review-thumb img { display: block; width: 68px; aspect-ratio: 1; object-fit: cover; }
.review-item div:nth-child(2) { display: grid; gap: 3px; }
.review-item strong { font-size: 12px; }
.review-item span { color: #808a88; font-size: 12px; }
.review-item > b { color: #6f913d; font-size: 16px; font-weight: 400; }
.review-status { display: flex; align-items: center; gap: 5px; color: #799648 !important; }
.review-status i { width: 5px; height: 5px; border-radius: 50%; background: #92b54e; }
.review-status.waiting { color: #b09155 !important; }
.review-status.waiting i { background: #c8a363; }
.teacher-foot { margin-top: 17px; color: #7c8885; font-size: 12px; }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 22px; }
.metric-grid div { display: grid; gap: 4px; padding: 14px 10px; border: 1px solid #d3d7cf; }
.metric-grid small, .metric-grid span { color: #7e8986; font-size: 12px; }
.metric-grid strong { font-family: var(--font-ui); font-size: 27px; font-weight: 700; }
.metric-grid span { color: #6c9141; }
.audit-line { display: grid; grid-template-columns: 100px 1fr 62px; gap: 10px; align-items: center; min-height: 45px; border-bottom: 1px solid #d3d6ce; color: #7d8784; font-size: 12px; }
.audit-line b { color: #485452; font-weight: 600; }
.audit-line small { color: #9aa19d; text-align: right; }

.guide-section { background: var(--paper); }
.guide-layout { display: grid; grid-template-columns: 310px 1fr; gap: 64px; align-items: start; }
.guide-nav { display: grid; gap: 10px; }
.guide-tab { display: grid; grid-template-columns: 28px 1fr 17px; gap: 4px 9px; align-items: center; min-height: 88px; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius); color: #7c8884; background: #eff1ea; text-align: left; }
.guide-tab > span { align-self: start; color: #93a197; font-family: Consolas, monospace; font-size: 12px; }
.guide-tab strong { color: var(--ink); font-size: 14px; }
.guide-tab small { grid-column: 2; color: #84908b; font-size: 12px; }
.guide-tab b { grid-column: 3; grid-row: 1 / span 2; color: #829b50; font-size: 16px; font-weight: 400; }
.guide-tab.active { border-color: #97ad72; background: #e1e9d4; }
.guide-tab.active > span, .guide-tab.active strong { color: #60773c; }
.guide-content { min-height: 440px; padding: 29px 32px; border: 1px solid var(--line); background: #f8f9f3; }
.guide-pane-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 18px; border-bottom: 1px solid var(--line); color: #75817c; font-family: Consolas, monospace; font-size: 12px; letter-spacing: 0.03em; }
.guide-pane-head b { color: #9aad74; font-weight: 400; }
.guide-steps { display: grid; gap: 0; }
.guide-steps > div { display: grid; grid-template-columns: 34px 1fr; gap: 15px; padding: 21px 0; border-bottom: 1px solid var(--line); }
.guide-steps > div:last-child { border-bottom: 0; }
.guide-steps > div > span { display: grid; place-items: center; width: 28px; height: 28px; border: 1px solid #a9bc88; border-radius: 50%; color: #799344; font-family: Consolas, monospace; font-size: 12px; }
.guide-steps strong { display: block; margin: 1px 0 4px; font-size: 15px; }
.guide-steps p { margin: 0; color: var(--ink-soft); font-size: 12px; line-height: 1.7; }

.guard-section { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(400px, 1.1fr); gap: 120px; align-items: center; border-top: 1px solid var(--line); background: #e8eae2; }
.guard-copy h2 { margin: 22px 0 20px; font-family: var(--font-ui); font-size: clamp(37px, 4.1vw, 58px); font-weight: 700; line-height: 1.15; }
.guard-copy p { max-width: 470px; margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.85; }
.guard-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.guard-tags span { padding: 7px 10px; border: 1px solid #c8d0c2; color: #6e7d6b; font-size: 12px; }
.guard-board { padding: 29px; border: 1px solid #c2cbc0; background: #f6f8f1; box-shadow: 15px 15px 0 #cdd7c3; }
.guard-board-top { display: flex; justify-content: space-between; padding-bottom: 19px; border-bottom: 1px solid #d0d6cc; color: #748079; font-family: Consolas, monospace; font-size: 12px; }
.dimension { display: grid; grid-template-columns: 48px 1fr 30px; align-items: center; gap: 12px; min-height: 44px; border-bottom: 1px solid #dce0d8; color: #75827c; font-size: 12px; }
.dimension i { height: 7px; overflow: hidden; background: #e0e5dc; }
.dimension i b { display: block; height: 100%; background: #a8c371; }
.dimension strong { color: #53624d; font-family: Consolas, monospace; font-size: 12px; text-align: right; }
.guard-board-note { margin-top: 19px; padding: 10px; color: #6a8548; background: #e6efd7; font-family: Consolas, monospace; font-size: 12px; text-align: center; }

.contact-section { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr); gap: 100px; padding-top: 118px; padding-bottom: 118px; }
.contact-main h2 { max-width: 800px; margin-top: 22px; font-size: clamp(42px, 5.5vw, 75px); }
.contact-main p { max-width: 490px; margin: 27px 0 33px; color: rgba(244, 246, 239, 0.61); font-size: 14px; line-height: 1.8; }
.contact-side { align-self: end; padding-left: 26px; border-left: 1px solid #3b4a4d; }
.contact-code { margin-bottom: 36px; color: var(--lime); font-family: Consolas, monospace; font-size: 13px; letter-spacing: 0.03em; }
.contact-side-line { display: grid; gap: 4px; padding: 13px 0; border-bottom: 1px solid #2d3c3f; }
.contact-side-line span { color: rgba(244, 246, 239, 0.4); font-family: Consolas, monospace; font-size: 12px; letter-spacing: 0.04em; }
.contact-side-line b { color: rgba(244, 246, 239, 0.77); font-size: 12px; font-weight: 500; }
.site-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 92px; padding: 0 max(32px, calc((100% - 1240px) / 2)); background: #0c1213; }
.site-footer .brand-text strong { color: rgba(244, 246, 239, 0.8); }
.site-footer p { margin: 0; color: rgba(244, 246, 239, 0.42); font-size: 12px; }
.footer-note { color: rgba(244, 246, 239, 0.3); font-family: Consolas, monospace; font-size: 12px; }

[hidden] { display: none !important; }

@media (max-width: 1050px) {
  .site-header, .signal-strip, .site-footer { width: calc(100% - 48px); padding-right: 0; padding-left: 0; }
  .site-header.scrolled { width: calc(100% - 48px); padding: 0 14px; }
  .hero, .section { padding-right: 48px; padding-left: 48px; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-copy { max-width: 760px; }
  .hero-visual { width: min(720px, 100%); margin: 0 auto; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .role-panel { grid-template-columns: 1fr; }
  .role-panel-visual { width: 100%; max-width: 590px; }
  .guard-section { gap: 55px; }
}

@media (max-width: 760px) {
  .site-header, .signal-strip, .site-footer { width: calc(100% - 32px); }
  .site-header { height: 67px; }
  .site-header.scrolled { width: calc(100% - 32px); height: 58px; }
  .site-nav, .header-action { display: none; }
  .mobile-menu { display: block; }
  .site-header.menu-open { background: rgba(16, 23, 25, 0.96); }
  .site-header.menu-open .site-nav { position: absolute; top: 66px; right: 0; left: 0; display: grid; gap: 0; margin: 0; padding: 8px 0; border: 1px solid #304044; background: #111a1c; }
  .site-header.menu-open .site-nav a { padding: 12px 16px; }
  .hero, .section { padding-right: 22px; padding-left: 22px; }
  .hero { padding-top: 125px; padding-bottom: 70px; }
  .hero h1 { font-size: clamp(42px, 13vw, 64px); }
  .hero-lede { font-size: 14px; }
  .hero-product { grid-template-columns: 1fr 88px; gap: 13px; }
  .hero-product-qr img { width: 70px; height: 70px; }
  .hero-meta { gap: 24px; margin-top: 58px; }
  .hero-visual { min-height: auto; padding: 20px 14px 18px; box-shadow: 9px 10px 0 rgba(198, 223, 133, 0.14); }
  .visual-topline { font-size: 12px; }
  .window-body { grid-template-columns: 1fr; gap: 15px; padding: 13px; }
  .window-insight { gap: 10px; }
  .note-one { right: -7px; bottom: 63px; }
  .note-two { bottom: 5px; left: -7px; }
  .signal-strip { display: grid; gap: 10px; padding-top: 22px; padding-bottom: 22px; }
  .signal-items { justify-content: flex-start; gap: 12px 18px; }
  .section { padding-top: 82px; padding-bottom: 82px; }
  .section-heading { display: block; margin-bottom: 38px; }
  .section-heading h2, .guard-copy h2 { margin-top: 17px; font-size: clamp(35px, 11vw, 52px); }
  .section-heading p { margin-top: 22px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: 280px; }
  .reality-grid { grid-template-columns: 1fr; }
  .reality-card, .reality-card-large { grid-template-rows: auto auto; }
  .reality-image-wrap, .reality-card-large .reality-image-wrap { min-height: 0; padding: 12px; }
  .reality-image-wrap img { height: auto; max-height: none; }
  .workflow-line { grid-template-columns: 1fr; gap: 0; }
  .workflow-step { min-height: 0; padding: 22px; }
  .workflow-connector { width: 1px; height: 24px; margin-left: 25px; }
  .workflow-foot { align-items: flex-start; flex-direction: column; }
  .roles-section { padding-top: 82px; padding-bottom: 82px; }
  .role-showcase { grid-template-columns: 1fr; gap: 20px; }
  .role-tabs { grid-template-columns: repeat(3, 1fr); gap: 5px; }
  .role-tab { grid-template-columns: 1fr; min-height: 70px; padding: 10px; }
  .role-tab span { align-self: auto; }
  .role-tab small { grid-column: auto; }
  .role-tab b { display: none; }
  .role-panel { min-height: 0; padding: 22px; }
  .role-panel-copy h3 { font-size: 34px; }
  .role-panel-visual { min-height: 0; padding: 12px; }
  .guide-layout { grid-template-columns: 1fr; gap: 25px; }
  .guide-tab { min-height: 73px; }
  .guide-content { padding: 21px; }
  .guard-section { display: block; }
  .guard-board { margin-top: 40px; padding: 20px; box-shadow: 8px 8px 0 #cdd7c3; }
  .contact-section { display: block; padding-top: 82px; padding-bottom: 82px; }
  .contact-main h2 { font-size: clamp(40px, 12vw, 60px); }
  .contact-side { margin-top: 58px; padding-left: 17px; }
  .site-footer { display: grid; grid-template-columns: 1fr auto; gap: 10px; padding-top: 20px; padding-bottom: 20px; }
  .site-footer p { grid-column: 1 / -1; grid-row: 2; }
  .footer-note { grid-column: 2; grid-row: 1; }
}

@media (max-width: 390px) {
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 18px; }
  .hero-product { grid-template-columns: 1fr; }
  .hero-product-qr { justify-self: start; grid-template-columns: auto 1fr; align-items: center; }
  .hero-product-qr img { width: 82px; height: 82px; }
  .hero-meta { gap: 18px; }
  .hero-meta strong { font-size: 24px; }
  .window-bar { font-size: 12px; }
  .window-status { display: none; }
  .role-tabs { grid-template-columns: 1fr; }
  .role-tab { grid-template-columns: 29px 1fr; min-height: 56px; }
  .role-tab small { grid-column: 2; }
}