:root {
  --ink: #172a3a;
  --ink-soft: #52616b;
  --paper: #f7f4ed;
  --paper-deep: #eee9dd;
  --white: #fffdf8;
  --teal: #0b7189;
  --teal-soft: #dcecef;
  --coral: #df6c4f;
  --amber: #cc9b3f;
  --line: rgba(23, 42, 58, 0.16);
  --serif: "Microsoft YaHei", "微软雅黑", sans-serif;
  --sans: "Microsoft YaHei", "微软雅黑", sans-serif;
  --mono: "Microsoft YaHei", "微软雅黑", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); line-height: 1.65; }
body.dark { --ink: #f5f0e7; --ink-soft: #b3c0c4; --paper: #101c25; --paper-deep: #172832; --white: #15242e; --teal-soft: #1d3a44; --line: rgba(245, 240, 231, 0.18); }
body.dark .site-header, body.dark .contact-section { background: #0c161d; }
body.dark .button-quiet { color: var(--ink); border-color: var(--line); }
body.dark .project-visual, body.dark .research-visual { background: #23353e; }

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
.container { width: min(1160px, calc(100% - 48px)); margin: 0 auto; }

.site-header { position: sticky; top: 0; z-index: 20; background: var(--ink); color: #f7f4ed; border-bottom: 1px solid rgba(255,255,255,.12); }
.nav-wrap { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { display: grid; place-items: center; width: 37px; height: 37px; border: 1px solid rgba(255,255,255,.55); font: 500 12px var(--mono); letter-spacing: 0; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.15; }
.brand-copy strong { font-size: 12px; letter-spacing: .14em; }
.brand-copy small { margin-top: 5px; color: #9db4bb; font: 10px var(--mono); letter-spacing: .08em; }
.site-nav { display: flex; align-items: center; gap: 25px; font-size: 13px; }
.site-nav a { color: #d5e0e0; transition: color .2s ease; }
.site-nav a:hover { color: #fff; }
.icon-btn { display: inline-grid; place-items: center; width: 36px; height: 36px; padding: 0; border: 1px solid rgba(255,255,255,.3); background: transparent; color: inherit; cursor: pointer; }
.icon-btn svg { width: 16px; height: 16px; }
.nav-toggle { display: none; }

.hero { position: relative; overflow: hidden; min-height: 690px; padding: 116px 0 90px; background: var(--ink); color: #f8f3ea; }
.hero-grid { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 82px; align-items: start; }
.eyebrow, .section-kicker, .meta-row, .focus-line, .role-note span, .project-label, .portrait-note span, .award-year, .practice-log span { font: 500 11px var(--mono); letter-spacing: .08em; }
.eyebrow { display: flex; align-items: center; gap: 9px; color: #9ec1c6; }
.eyebrow-dot { width: 7px; height: 7px; background: var(--coral); border-radius: 50%; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 28px; font-size: clamp(48px, 7vw, 90px); line-height: 1.02; letter-spacing: -.02em; font-weight: 800; }
h1 em { color: #8cc5c8; font-style: normal; }
.hero-lede { max-width: 720px; margin-bottom: 32px; color: #cad7d7; font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { min-height: 48px; display: inline-flex; align-items: center; gap: 10px; padding: 0 18px; border: 1px solid transparent; font-size: 13px; font-weight: 700; transition: transform .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button svg { width: 16px; height: 16px; }
.button-primary { background: var(--coral); color: #fff; }
.button-primary:hover { background: #ed7e61; }
.button-quiet { border-color: rgba(255,255,255,.35); color: #f8f3ea; }
.button-quiet:hover { background: rgba(255,255,255,.08); }
.hero-facts { display: flex; gap: 34px; margin-top: 64px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.2); }
.hero-facts div { display: flex; flex-direction: column; gap: 4px; }
.hero-facts strong { font-size: 21px; font-weight: 700; color: #fff; }
.hero-facts span { color: #9db4bb; font-size: 11px; }
.hero-profile { width: 100%; }
.portrait-frame { position: relative; width: 184px; border: 1px solid rgba(255,255,255,.48); padding: 8px; }
.portrait-frame::before { content: ""; position: absolute; top: -10px; right: -10px; width: 58px; height: 58px; border-top: 2px solid var(--coral); border-right: 2px solid var(--coral); }
.portrait-frame img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; filter: saturate(.86); }
.portrait-stamp { position: absolute; bottom: 24px; right: 24px; padding: 9px 11px; background: var(--coral); color: #fff; font: 500 10px/1.25 var(--mono); letter-spacing: .12em; }
.portrait-note { margin: 17px 0 0; color: #9db4bb; font-size: 12px; line-height: 1.9; }
.portrait-note span { color: var(--coral); margin-right: 8px; }
.profile-identity { margin: 18px 0 20px; }
.profile-identity h2 { margin: 0; color: #fff; font-size: 25px; line-height: 1.2; }
.profile-identity p { margin: 5px 0 0; color: #9db4bb; font-size: 11px; }
.profile-details { margin: 0; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.2); }
.profile-details div { display: grid; grid-template-columns: 36px 1fr; gap: 8px; padding: 9px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
.profile-details dt { color: #8cc5c8; font-size: 11px; }
.profile-details dd { margin: 0; color: #d9e5e3; font-size: 11px; line-height: 1.7; }
.hero-resume-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 28px; max-width: 760px; border-top: 1px solid rgba(255,255,255,.2); }
.hero-resume-grid > div { min-height: 103px; padding: 17px 0 15px; border-bottom: 1px solid rgba(255,255,255,.15); }
.hero-resume-grid span { display: block; color: #8cc5c8; font-size: 11px; }
.hero-resume-grid strong { display: block; margin: 7px 0 4px; color: #fff; font-size: 16px; }
.hero-resume-grid small { color: #b8caca; font-size: 11px; line-height: 1.6; }
.scroll-cue { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); display: flex; align-items: center; gap: 10px; color: #7e9ba3; font: 10px var(--mono); letter-spacing: .15em; }
.scroll-cue span { width: 36px; height: 1px; background: var(--coral); }

.intro-band { padding: 72px 0; background: var(--paper-deep); }
.intro-grid { display: grid; grid-template-columns: 1fr 2.3fr 1fr; gap: 40px; align-items: start; }
.section-kicker { color: var(--teal); }
.intro-statement { margin: 0; max-width: 660px; font-family: var(--serif); font-size: clamp(28px, 4vw, 45px); line-height: 1.2; }
.intro-aside { margin: 8px 0 0; color: var(--ink-soft); font-size: 13px; }

.section { padding: 126px 0; }
.section-tint { background: var(--teal-soft); }
.section-heading { max-width: 700px; margin-bottom: 58px; }
.section-heading h2, .community-band h2, .contact-section h2 { margin: 13px 0 17px; font-size: clamp(34px, 4.4vw, 59px); line-height: 1.08; letter-spacing: -.02em; }
.section-heading > p:last-child { margin-bottom: 0; color: var(--ink-soft); max-width: 600px; }
.research-feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, .9fr); gap: 62px; padding-bottom: 74px; border-bottom: 1px solid var(--line); }
.meta-row { display: flex; flex-wrap: wrap; gap: 13px; color: var(--teal); }
.meta-row span + span::before { content: "/"; margin-right: 13px; color: var(--line); }
.research-feature h3, .research-row h3, .project-copy h3 { margin: 17px 0 3px; font-size: clamp(25px, 3vw, 38px); line-height: 1.15; }
.research-subtitle { margin-bottom: 20px; color: var(--ink-soft); font-size: 14px; }
.research-feature-copy > p:not(.research-subtitle):not(.role-note) { max-width: 630px; font-size: 15px; }
.metric-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 37px 0 30px; }
.metric-row div { padding-top: 13px; border-top: 2px solid var(--coral); }
.metric-row strong { display: block; color: var(--coral); font-size: 27px; line-height: 1.1; }
.metric-row span { display: block; margin-top: 6px; color: var(--ink-soft); font-size: 11px; }
.role-note { margin: 0; color: var(--ink-soft); font-size: 12px; }
.role-note span { margin-right: 10px; color: var(--coral); }
.research-visual { align-self: center; margin: 0; padding: 12px; background: var(--white); border: 1px solid var(--line); }
.research-visual img { width: 100%; aspect-ratio: 1.7 / 1; object-fit: contain; background: #fff; }
figcaption { margin-top: 9px; color: var(--ink-soft); font: 10px var(--mono); letter-spacing: .02em; }
.research-row { display: grid; grid-template-columns: 56px minmax(0, 1fr) 190px; gap: 25px; padding: 42px 0; border-bottom: 1px solid var(--line); }
.research-row-index { font: 500 18px var(--mono); color: var(--coral); }
.research-row h3 { font-size: 28px; }
.research-row p:not(.research-subtitle) { max-width: 660px; margin-bottom: 0; color: var(--ink-soft); font-size: 14px; }
.research-row .role-note { margin-top: 18px; }
.research-result { align-self: end; padding-left: 20px; border-left: 1px solid var(--line); }
.research-result strong { display: block; color: var(--teal); font-size: 29px; line-height: 1.1; }
.research-result span { display: block; margin-top: 5px; font-size: 12px; }
.research-result small { display: block; margin-top: 13px; color: var(--ink-soft); font-size: 11px; }
.focus-line { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 17px; padding-top: 27px; color: var(--ink-soft); }
.focus-line span:first-child { color: var(--coral); margin-right: 10px; }
.focus-line span:not(:first-child)::before { content: "•"; margin-right: 17px; color: var(--amber); }

.split-heading { display: flex; justify-content: space-between; gap: 45px; align-items: end; max-width: none; }
.split-heading > p { max-width: 265px; margin-bottom: 2px; font-size: 13px; }
.project-feature { display: grid; grid-template-columns: 1.2fr .8fr; gap: 70px; align-items: start; }
.project-visual { margin: 0; padding: 12px; background: var(--white); border: 1px solid var(--line); }
.project-visual img { width: 100%; aspect-ratio: 1.75 / 1; object-fit: cover; object-position: center top; }
.project-label { margin-bottom: 10px; color: var(--coral); }
.project-copy h3 { max-width: 450px; }
.project-copy > p:not(.project-label) { color: var(--ink-soft); font-size: 14px; }
.project-points { margin-top: 27px; }
.project-points > div { display: grid; grid-template-columns: 30px 1fr; gap: 13px; padding: 14px 0; border-top: 1px solid var(--line); }
.project-points span { color: var(--coral); font: 500 11px var(--mono); }
.project-points p { margin: 0; font-size: 13px; }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.tag-list span, .tag-list a { padding: 5px 9px; border: 1px solid var(--line); color: var(--ink-soft); font: 11px var(--mono); }
.tag-list a:hover { border-color: var(--coral); color: var(--coral); }

.health-project { background: var(--paper); }
.health-feature { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; padding-top: 8px; }
.health-intro > p { max-width: 420px; color: var(--ink-soft); font-size: 15px; }
.health-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 35px; }
.health-stats div { padding-top: 13px; border-top: 2px solid var(--teal); }
.health-stats strong { display: block; color: var(--teal); font-size: 30px; line-height: 1; }
.health-stats span { display: block; margin-top: 7px; color: var(--ink-soft); font-size: 11px; }
.health-points { border-top: 1px solid var(--line); }
.health-points > div { display: grid; grid-template-columns: 33px 1fr; gap: 15px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.health-points span { color: var(--coral); font: 500 11px var(--mono); }
.health-points p { margin: 0; color: var(--ink-soft); font-size: 13px; }

.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; padding: 32px 0 63px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.highlight-stat { padding-right: 20px; border-right: 1px solid var(--line); }
.highlight-stat:last-child { border-right: 0; }
.highlight-stat strong { display: block; color: var(--coral); font-size: 52px; line-height: 1; }
.highlight-stat span { display: block; margin: 11px 0 13px; font-size: 13px; font-weight: 700; }
.highlight-stat p { margin: 0; color: var(--ink-soft); font-size: 12px; }
.awards-list { display: grid; grid-template-columns: repeat(2, 1fr); column-gap: 72px; }
.award-item { display: grid; grid-template-columns: 58px 1fr; gap: 16px; padding: 21px 0; border-bottom: 1px solid var(--line); }
.award-year { padding-top: 4px; color: var(--teal); }
.award-item strong { display: block; font-size: 14px; }
.award-item div span { display: block; margin-top: 4px; color: var(--ink-soft); font-size: 12px; }

.community-band { padding: 104px 0; background: var(--coral); color: #fff9f1; }
.community-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 100px; align-items: end; }
.community-band .section-kicker { color: #ffddaf; }
.community-band h2 { max-width: 520px; }
.community-band p:not(.section-kicker) { max-width: 500px; margin: 0; color: #ffe8d4; font-size: 14px; }
.practice-log { border-top: 1px solid rgba(255,255,255,.42); }
.practice-log > div { display: grid; grid-template-columns: 80px 1fr; gap: 15px; padding: 17px 0; border-bottom: 1px solid rgba(255,255,255,.42); }
.practice-log span { color: #ffddaf; }
.practice-log strong { font-size: 15px; }
.practice-log small { grid-column: 2; color: #ffe8d4; font-size: 11px; }

.future-section { background: var(--paper-deep); }
.future-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; border-top: 1px solid var(--line); }
.future-grid article { padding: 23px 20px 0 0; border-right: 1px solid var(--line); }
.future-grid article:last-child { border-right: 0; }
.future-grid span { color: var(--coral); font: 500 11px var(--mono); }
.future-grid h3 { margin: 16px 0 11px; font-size: 21px; line-height: 1.25; }
.future-grid p { margin: 0; color: var(--ink-soft); font-size: 13px; }

.contact-section { padding: 108px 0 90px; background: var(--ink); color: #f8f3ea; }
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 100px; align-items: end; }
.contact-section .section-kicker { color: #8cc5c8; }
.contact-section h2 { max-width: 620px; }
.contact-section p:not(.section-kicker) { max-width: 500px; margin: 0; color: #cad7d7; font-size: 14px; }
.contact-actions { border-top: 1px solid rgba(255,255,255,.28); }
.contact-link { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 21px 0; border-bottom: 1px solid rgba(255,255,255,.28); font-size: 14px; }
.contact-link:hover { color: #8cc5c8; }
.contact-link svg { width: 17px; height: 17px; }
.site-footer { padding: 22px 0; background: #0e1e27; color: #8da6ad; font: 10px var(--mono); }
.site-footer .container { display: flex; justify-content: space-between; gap: 20px; align-items: center; }
.site-footer a { display: inline-grid; place-items: center; width: 28px; height: 28px; border: 1px solid rgba(255,255,255,.25); color: #f8f3ea; }
.site-footer svg { width: 13px; height: 13px; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal[data-delay="120"] { transition-delay: .12s; }
.hero .reveal { opacity: 1; transform: none; }
.hero .reveal[data-delay="120"] { transition-delay: 0s; }

@media (max-width: 900px) {
  .hero-grid, .research-feature, .project-feature, .health-feature, .community-grid, .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero { padding-top: 82px; }
  .hero-profile { display: grid; grid-template-columns: 184px minmax(0, 1fr); column-gap: 24px; align-items: start; }
  .profile-identity { grid-column: 2; }
  .profile-details { grid-column: 1 / -1; grid-row: auto; margin-top: 0; }
  .profile-identity { margin-top: 14px; }
  .intro-grid { grid-template-columns: 1fr 2fr; }
  .intro-aside { grid-column: 2; }
  .research-result { border-left: 0; border-top: 1px solid var(--line); padding: 18px 0 0; }
  .community-grid, .contact-grid { gap: 54px; }
}
@media (max-width: 680px) {
  .container { width: min(100% - 32px, 1160px); }
  .nav-wrap { min-height: 68px; }
  .nav-toggle { display: inline-grid; }
  .site-nav { position: absolute; top: 68px; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 9px 16px 16px; background: var(--ink); border-bottom: 1px solid rgba(255,255,255,.14); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 11px 0; border-bottom: 1px solid rgba(255,255,255,.12); }
  .site-nav .icon-btn { margin-top: 10px; align-self: flex-start; }
  .hero { min-height: auto; padding: 70px 0 74px; }
  .hero-profile { display: block; }
  .hero-resume-grid { grid-template-columns: 1fr; }
  h1 { font-size: clamp(40px, 12vw, 58px); }
  .hero-lede { font-size: 15px; }
  .hero-facts { gap: 20px; margin-top: 45px; }
  .hero-facts strong { font-size: 17px; }
  .scroll-cue { display: none; }
  .intro-band { padding: 52px 0; }
  .intro-grid { display: block; }
  .intro-statement { margin: 25px 0 20px; font-size: 32px; }
  .intro-aside { max-width: 430px; }
  .section { padding: 82px 0; }
  .section-heading { margin-bottom: 42px; }
  .metric-row { grid-template-columns: 1fr; gap: 18px; }
  .research-row { grid-template-columns: 35px 1fr; gap: 13px; }
  .research-result { grid-column: 2; }
  .split-heading { display: block; }
  .split-heading > p { margin-top: 23px; }
  .health-stats { gap: 10px; }
  .highlight-grid { grid-template-columns: repeat(2, 1fr); row-gap: 30px; }
  .highlight-stat:nth-child(2) { border-right: 0; }
  .highlight-stat strong { font-size: 42px; }
  .awards-list { grid-template-columns: 1fr; }
  .future-grid { grid-template-columns: 1fr; }
  .future-grid article { padding-right: 0; padding-bottom: 25px; border-right: 0; border-bottom: 1px solid var(--line); }
  .future-grid article:last-child { border-bottom: 0; }
  .community-band { padding: 78px 0; }
  .practice-log > div { grid-template-columns: 70px 1fr; }
  .contact-section { padding: 78px 0 66px; }
  .site-footer .container { align-items: flex-start; flex-wrap: wrap; }
}