:root {
  --ink: #18231f;
  --muted: #6c746f;
  --line: #d8ddd5;
  --paper: #f4f5ef;
  --paper-deep: #e9ece4;
  --lime: #c8e86b;
  --lime-dark: #9ab83f;
  --serif: Georgia, 'Times New Roman', serif;
  --sans: 'Manrope', 'Microsoft YaHei', sans-serif;
  --mono: 'DM Mono', Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
.page-shell { overflow: hidden; }
.section-wrap { width: min(1160px, calc(100% - 80px)); margin: 0 auto; }
.site-header { width: min(1160px, calc(100% - 80px)); height: 88px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 13px; }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; background: var(--ink); color: var(--lime); font: 500 12px var(--mono); letter-spacing: .02em; }
.brand-copy { display: grid; gap: 2px; }
.brand-copy strong { font-size: 14px; letter-spacing: -.01em; }
.brand-copy span { color: var(--muted); font: 11px var(--mono); }
.main-nav { display: flex; gap: 34px; margin-left: 80px; font-size: 12px; color: #4f5853; }
.main-nav a, .header-contact, .text-link, .read-link, .contact-links a, .copy-email, .site-footer a { transition: color .2s ease, opacity .2s ease; }
.main-nav a:hover, .header-contact:hover, .text-link:hover, .read-link:hover, .contact-links a:hover, .copy-email:hover, .site-footer a:hover { color: var(--lime-dark); }
.header-contact { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 700; }
.header-contact svg { width: 15px; height: 15px; }
.hero { min-height: 615px; padding: 87px 0 102px; display: grid; grid-template-columns: 1.03fr .97fr; align-items: center; gap: 72px; }
.eyebrow { margin: 0 0 24px; color: var(--muted); font: 500 11px var(--mono); letter-spacing: .11em; }
.status-dot { display: inline-block; width: 7px; height: 7px; margin: 0 9px 1px 0; background: var(--lime-dark); border-radius: 50%; box-shadow: 0 0 0 5px rgba(154, 184, 63, .14); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 590px; margin-bottom: 25px; font-size: 78px; line-height: 1.03; letter-spacing: -.06em; font-weight: 700; }
h1 em { color: #56715f; font-family: var(--serif); font-weight: 400; letter-spacing: -.06em; }
.hero-intro { max-width: 500px; margin-bottom: 31px; color: #5f6862; font-size: 14px; line-height: 1.9; }
.hero-actions { display: flex; align-items: center; gap: 26px; margin-bottom: 54px; }
.button { display: inline-flex; align-items: center; gap: 12px; min-height: 47px; padding: 0 19px; font-size: 12px; font-weight: 700; }
.button-primary { background: var(--ink); color: var(--lime); }
.button-primary:hover { background: #33423a; }
.button svg { width: 16px; height: 16px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: #48564d; font-size: 12px; font-weight: 700; }
.text-link svg { width: 14px; height: 14px; }
.hero-meta { display: flex; gap: 24px; color: var(--muted); font: 11px var(--mono); }
.hero-meta span { display: inline-flex; align-items: center; gap: 7px; }
.hero-meta svg { width: 14px; height: 14px; }
.hero-visual { align-self: stretch; display: flex; flex-direction: column; justify-content: center; padding-top: 16px; }
.visual-topline { display: flex; justify-content: space-between; margin-bottom: 11px; color: #8a938b; font: 10px var(--mono); letter-spacing: .08em; }
.visual-signal { display: inline-flex; align-items: center; gap: 5px; color: var(--lime-dark); }
.visual-signal svg { width: 12px; height: 12px; }
.visual-frame { position: relative; height: 385px; overflow: hidden; background: var(--ink); }
.visual-frame:after { content: ''; position: absolute; inset: 0; background: rgba(17, 28, 23, .08); pointer-events: none; }
.visual-frame img { width: 100%; height: 100%; display: block; object-fit: cover; filter: saturate(.68) contrast(1.06); }
.visual-caption { position: absolute; z-index: 1; left: 28px; bottom: 25px; display: flex; align-items: flex-start; gap: 17px; color: #fff; }
.visual-caption span { color: var(--lime); font: 11px var(--mono); }
.visual-caption strong { font: 25px/1.12 var(--serif); letter-spacing: -.02em; }
.visual-note { display: flex; justify-content: space-between; align-items: center; padding: 15px 0 0; color: var(--muted); font: 10px var(--mono); }
.visual-note strong { color: #46534b; font: 12px var(--sans); }
.ticker { background: var(--ink); color: var(--lime); overflow: hidden; }
.ticker-track { display: flex; justify-content: center; align-items: center; gap: 29px; min-width: max-content; min-height: 54px; font: 11px var(--mono); letter-spacing: .13em; }
.ticker-dot { color: #6d7d69; font-size: 15px; }
.content-section { padding: 112px 0 120px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; padding-bottom: 29px; border-bottom: 1px solid var(--line); }
.section-heading .eyebrow { margin-bottom: 16px; }
h2 { margin-bottom: 0; font-size: 41px; letter-spacing: -.055em; line-height: 1.1; }
.section-side-note { color: var(--muted); font: 10px var(--mono); }
.notes-grid { display: grid; grid-template-columns: 1.48fr 1fr 1fr; border-bottom: 1px solid var(--line); }
.note-card { min-height: 310px; padding: 28px 26px 27px 0; display: flex; gap: 21px; border-right: 1px solid var(--line); }
.note-card + .note-card { padding-left: 25px; }
.note-card:last-child { border-right: 0; }
.note-index { color: #a2aaa2; font: 11px var(--mono); }
.note-body { display: flex; flex-direction: column; align-items: flex-start; }
.note-tag { margin-bottom: 17px; color: var(--lime-dark); font: 10px var(--mono); letter-spacing: .04em; }
.note-body h3 { max-width: 310px; margin-bottom: 15px; font-size: 20px; line-height: 1.31; letter-spacing: -.035em; }
.note-body > p:not(.note-tag) { margin-bottom: 20px; color: #778079; font-size: 12px; line-height: 1.75; }
.read-link { margin-top: auto; display: inline-flex; align-items: center; gap: 8px; color: #47564d; font-size: 11px; font-weight: 700; }
.read-link svg { width: 13px; height: 13px; }
.projects-section { padding-top: 0; }
.project-list { border-bottom: 1px solid var(--line); }
.project-row { display: grid; grid-template-columns: 70px 1fr auto; gap: 26px; align-items: center; padding: 29px 0; border-bottom: 1px solid var(--line); }
.project-row:last-child { border-bottom: 0; }
.project-number { color: #a2aaa2; font: 11px var(--mono); }
.project-title-line { display: flex; align-items: baseline; gap: 13px; margin-bottom: 9px; }
.project-title-line h3 { margin: 0; font-size: 23px; letter-spacing: -.04em; }
.project-status { color: #a2aaa2; font: 10px var(--mono); }
.project-info > p { max-width: 670px; margin-bottom: 13px; color: #69746c; font-size: 12px; line-height: 1.7; }
.project-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.project-tags span { padding: 5px 8px; color: #6b786d; border: 1px solid #ced5cb; font: 10px var(--mono); }
.download-button { display: inline-flex; align-items: center; gap: 9px; min-width: 98px; justify-content: center; height: 39px; border: 1px solid #b8c3b7; font-size: 11px; font-weight: 700; transition: all .2s ease; }
.download-button svg { width: 14px; height: 14px; }
.download-button:hover { border-color: var(--ink); background: var(--ink); color: var(--lime); }
.download-button.disabled { color: #a1aaa2; border-color: #d7ddd6; cursor: not-allowed; }
.about-section { display: grid; grid-template-columns: 1fr 1fr; gap: 103px; align-items: center; padding: 105px 0 124px; }
.about-photo { aspect-ratio: 1 / 1; max-width: 410px; overflow: hidden; background: var(--paper-deep); }
.about-photo img { width: 100%; height: 100%; display: block; object-fit: cover; filter: grayscale(1) saturate(.4); }
.about-copy h2 { max-width: 460px; margin-bottom: 26px; font-family: var(--serif); font-size: 60px; font-weight: 400; letter-spacing: -.045em; color: #456050; }
.about-copy > p:not(.eyebrow) { max-width: 440px; color: #69746c; font-size: 13px; line-height: 1.9; }
.contact-links { display: flex; flex-wrap: wrap; gap: 15px 24px; margin-top: 31px; padding-top: 21px; border-top: 1px solid var(--line); }
.contact-links a, .copy-email { display: inline-flex; align-items: center; gap: 8px; padding: 0; border: 0; background: none; color: #445248; font-size: 11px; font-weight: 700; cursor: pointer; }
.contact-links svg { width: 14px; height: 14px; color: var(--lime-dark); }
.site-footer { display: flex; justify-content: space-between; align-items: center; padding: 22px 0 27px; border-top: 1px solid var(--line); color: #89938b; font: 10px var(--mono); }
.site-footer a { display: inline-flex; align-items: center; gap: 7px; color: #66736a; }
.site-footer svg { width: 13px; height: 13px; }
.toast { position: fixed; left: 50%; bottom: 29px; z-index: 10; padding: 12px 17px; background: var(--ink); color: var(--lime); font: 11px var(--mono); opacity: 0; transform: translate(-50%, 18px); pointer-events: none; transition: opacity .25s ease, transform .25s ease; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 800px) {
  .section-wrap, .site-header { width: min(100% - 40px, 590px); }
  .site-header { height: 76px; }
  .main-nav { display: none; }
  .hero { grid-template-columns: 1fr; gap: 50px; padding: 63px 0 79px; }
  h1 { font-size: 61px; }
  .hero-intro { max-width: 540px; }
  .hero-actions { margin-bottom: 35px; }
  .hero-visual { padding-top: 0; }
  .visual-frame { height: min(78vw, 370px); }
  .content-section { padding: 78px 0 83px; }
  .section-heading { align-items: start; gap: 20px; }
  h2 { font-size: 36px; }
  .notes-grid { grid-template-columns: 1fr; }
  .note-card, .note-card + .note-card { min-height: unset; padding: 27px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .note-card:last-child { border-bottom: 0; }
  .note-body h3 { max-width: none; }
  .project-row { grid-template-columns: 35px 1fr; gap: 14px; }
  .download-button { grid-column: 2; justify-self: start; }
  .about-section { grid-template-columns: 1fr; gap: 48px; padding: 82px 0 91px; }
  .about-photo { max-width: none; width: min(100%, 410px); }
}

@media (max-width: 480px) {
  .section-wrap, .site-header { width: calc(100% - 32px); }
  .header-contact span { display: none; }
  .hero-meta { flex-direction: column; gap: 10px; }
  h1 { font-size: 49px; }
  .about-copy h2 { font-size: 49px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 19px; }
  .section-heading { flex-direction: column; }
  .section-side-note { margin-top: -5px; }
  .project-title-line { align-items: flex-start; flex-direction: column; gap: 5px; }
  .site-footer { align-items: flex-start; flex-direction: column; gap: 14px; }
}