:root {
  color-scheme: light;
  --ink: #1d1d1f;
  --ink-soft: #424245;
  --muted: #6e6e73;
  --line: #e6e6e8;
  --wash: #f5f6f8;
  --blue: #0071e3;
  --blue-dark: #005bb7;
  --white: #ffffff;
  --max: 1180px;
  --radius: 24px;
  --shadow: 0 24px 70px rgba(25, 40, 65, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans CJK SC",
    "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  z-index: 30;
  height: 2px;
  background: var(--blue);
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  transform: translateY(-160%);
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(230, 230, 232, 0.88);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(18px);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 48px), var(--max));
  min-height: 70px;
  margin: 0 auto;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  font-weight: 650;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.4vw, 34px);
}

.site-nav a {
  color: var(--ink-soft);
  font-size: 14px;
  text-decoration: none;
  transition: color 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--blue-dark);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(420px, 0.92fr);
  gap: clamp(54px, 7vw, 106px);
  align-items: center;
  width: min(calc(100% - 48px), var(--max));
  min-height: calc(100vh - 70px);
  margin: 0 auto;
  padding: 68px 0 82px;
  scroll-margin-top: 72px;
}

.hero-copy {
  max-width: 680px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 22px;
  color: var(--blue-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.hero h1 {
  margin: 0;
  font-size: clamp(72px, 9vw, 128px);
  font-weight: 680;
  letter-spacing: -0.075em;
  line-height: 0.98;
}

.hero-role {
  margin-top: 34px;
}

.hero-role p {
  margin: 0;
  color: var(--ink);
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.5;
}

.hero-role p + p {
  color: var(--muted);
  font-weight: 500;
}

.hero-lead {
  max-width: 650px;
  margin: 28px 0 0;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.8;
}

.hero-actions {
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 23px;
  border-radius: 999px;
  background: var(--blue);
  color: var(--white);
  font-size: 15px;
  font-weight: 650;
  text-decoration: none;
  transition: background 160ms ease;
}

.button:hover,
.button:focus-visible {
  background: var(--blue-dark);
}

.hero-location {
  margin: 38px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.portrait-card {
  margin: 0;
}

.portrait-frame {
  overflow: hidden;
  aspect-ratio: 4 / 5;
  border: 1px solid #dfe2e8;
  border-radius: var(--radius);
  background: #dfe4ec;
  box-shadow: var(--shadow);
}

.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 34%;
}

.ability-strip {
  padding: 34px max(24px, calc((100vw - var(--max)) / 2));
  background: var(--ink);
  color: var(--white);
}

.ability-strip ul {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ability-strip li {
  display: flex;
  align-items: center;
  min-height: 68px;
  padding: 0 26px;
  border-left: 1px solid rgba(255, 255, 255, 0.16);
  font-size: 14px;
  line-height: 1.65;
}

.ability-strip li:first-child {
  padding-left: 0;
  border-left: 0;
}

.ability-strip li:last-child {
  padding-right: 0;
}

.section {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
  padding: clamp(96px, 11vw, 150px) 0;
  scroll-margin-top: 72px;
}

.section + .section {
  border-top: 1px solid var(--line);
}

.section-heading {
  max-width: 760px;
  margin-bottom: clamp(54px, 7vw, 84px);
}

.section-heading-wide {
  max-width: 880px;
}

.section-heading h2,
.channel-section h2 {
  margin: 0;
  font-size: clamp(42px, 5vw, 68px);
  font-weight: 610;
  letter-spacing: -0.055em;
  line-height: 1.16;
}

.section-intro {
  max-width: 740px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(290px, 0.55fr);
  gap: clamp(48px, 8vw, 112px);
}

.timeline-block > h3,
.profile-facts h3 {
  margin: 0 0 28px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.timeline {
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  display: grid;
  grid-template-columns: 66px 1fr;
  gap: 30px;
  padding: 0 0 34px;
}

.timeline li:not(:last-child) {
  margin-bottom: 34px;
  border-bottom: 1px solid var(--line);
}

.timeline time,
.timeline-now {
  padding-top: 2px;
  color: var(--blue-dark);
  font-size: 14px;
  font-weight: 700;
}

.timeline p {
  margin: 0;
  color: var(--ink-soft);
}

.profile-facts {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.profile-facts > div {
  padding: 26px;
  border-radius: 18px;
  background: var(--wash);
}

.profile-facts h3 {
  margin-bottom: 14px;
  color: var(--ink);
}

.profile-facts p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.profile-facts p + p {
  margin-top: 8px;
}

.expertise-section {
  width: 100%;
  padding-right: max(24px, calc((100vw - var(--max)) / 2));
  padding-left: max(24px, calc((100vw - var(--max)) / 2));
  background: var(--wash);
}

.expertise-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin: 0;
  padding: 0;
  border-top: 1px solid #d8dade;
  list-style: none;
}

.expertise-list li {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 18px;
  min-height: 190px;
  padding: 34px 34px 34px 0;
  border-bottom: 1px solid #d8dade;
}

.expertise-list li:nth-child(odd) {
  border-right: 1px solid #d8dade;
}

.expertise-list li:nth-child(even) {
  padding-right: 0;
  padding-left: 34px;
}

.expertise-list > li > span {
  color: var(--blue-dark);
  font-size: 12px;
  font-weight: 750;
}

.expertise-list h3 {
  margin: 0;
  font-size: 21px;
  font-weight: 650;
  letter-spacing: -0.025em;
  line-height: 1.4;
}

.expertise-list p {
  margin: 11px 0 0;
  color: var(--muted);
}

.practice-section {
  border-top: 0 !important;
}

.practice-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(58px, 9vw, 130px);
  align-items: start;
}

.practice-layout .section-heading {
  margin: 0;
}

.practice-copy {
  padding-top: 42px;
  border-top: 1px solid var(--ink);
}

.practice-copy p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.9;
}

.practice-copy p + p {
  margin-top: 26px;
}

.channel-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(50px, 8vw, 110px);
  align-items: end;
  padding: clamp(80px, 10vw, 126px) max(24px, calc((100vw - var(--max)) / 2));
  background: var(--ink);
  color: var(--white);
}

.channel-section .section-kicker {
  color: #74b7ff;
}

.channel-section > p {
  max-width: 660px;
  margin: 0;
  color: #c8c8ce;
  font-size: 18px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  padding: 28px max(24px, calc((100vw - var(--max)) / 2));
  background: var(--ink);
  color: #b5b5ba;
  font-size: 12px;
}

.site-footer p {
  margin: 0;
}

:focus-visible {
  outline: 3px solid #72b8ff;
  outline-offset: 4px;
}

@media (max-width: 980px) {
  .site-nav {
    max-width: 70vw;
    overflow-x: auto;
    padding: 8px 0;
    scrollbar-width: none;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .site-nav a {
    flex: 0 0 auto;
  }

  .hero {
    grid-template-columns: 1fr 0.8fr;
    gap: 40px;
  }

  .ability-strip ul {
    grid-template-columns: repeat(2, 1fr);
  }

  .ability-strip li,
  .ability-strip li:first-child,
  .ability-strip li:last-child {
    min-height: 78px;
    padding: 12px 22px;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    border-left: 1px solid rgba(255, 255, 255, 0.16);
  }

  .ability-strip li:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }

  .ability-strip li:nth-child(-n + 2) {
    border-top: 0;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav-shell,
  .hero,
  .section {
    width: min(calc(100% - 32px), var(--max));
  }

  .nav-shell {
    min-height: 62px;
  }

  .wordmark {
    font-size: 14px;
  }

  .site-nav {
    max-width: 54vw;
    gap: 20px;
  }

  .site-nav a {
    font-size: 13px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 56px 0 76px;
  }

  .hero-copy {
    display: contents;
  }

  .eyebrow {
    order: 1;
  }

  .hero h1 {
    order: 2;
    font-size: clamp(68px, 22vw, 92px);
  }

  .hero-role {
    order: 3;
    margin-top: 4px;
  }

  .hero-role p {
    font-size: 19px;
  }

  .hero-lead {
    order: 4;
    margin-top: 2px;
  }

  .portrait-card {
    order: 5;
    margin-top: 14px;
  }

  .hero-actions {
    order: 6;
    margin-top: 10px;
  }

  .hero-location {
    order: 7;
    margin-top: 8px;
  }

  .portrait-frame {
    aspect-ratio: 1 / 1;
    border-radius: 20px;
  }

  .portrait-frame img {
    object-position: center 23%;
  }

  .ability-strip ul {
    grid-template-columns: 1fr;
  }

  .ability-strip li,
  .ability-strip li:first-child,
  .ability-strip li:last-child,
  .ability-strip li:nth-child(odd) {
    min-height: 60px;
    padding: 14px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
    border-left: 0;
  }

  .ability-strip li:first-child {
    border-top: 0;
  }

  .section {
    padding: 86px 0;
  }

  .section-heading {
    margin-bottom: 50px;
  }

  .section-heading h2,
  .channel-section h2 {
    font-size: clamp(38px, 12vw, 52px);
  }

  .timeline li {
    grid-template-columns: 54px 1fr;
    gap: 16px;
  }

  .expertise-section {
    padding-right: 16px;
    padding-left: 16px;
  }

  .expertise-list {
    grid-template-columns: 1fr;
  }

  .expertise-list li,
  .expertise-list li:nth-child(even) {
    min-height: 0;
    padding: 28px 0;
    border-right: 0;
  }

  .practice-layout,
  .channel-section {
    grid-template-columns: 1fr;
  }

  .practice-layout {
    gap: 46px;
  }

  .practice-copy {
    padding-top: 30px;
  }

  .site-footer {
    flex-direction: column;
    gap: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}