:root {
  --bg: #f8f5ef;
  --bg-soft: #f3f6fb;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --surface-tint: #edf3ff;
  --text: #171717;
  --muted: #6b6f76;
  --line: rgba(27, 27, 27, 0.08);
  --line-soft: rgba(27, 27, 27, 0.05);
  --accent: #2f66ff;
  --accent-soft: rgba(47, 102, 255, 0.1);
  --green-soft: #e8f6ee;
  --green-text: #2a8a56;
  --purple-soft: #f2ecff;
  --purple-text: #7d5bd1;
  --shadow: 0 26px 70px rgba(39, 53, 86, 0.08);
  --radius-hero: 36px;
  --radius-xl: 28px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 999px;
  --content-width: min(1380px, calc(100vw - clamp(24px, 4vw, 72px)));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 0% 0%, rgba(68, 122, 255, 0.14), transparent 24%),
    radial-gradient(circle at 100% 0%, rgba(231, 215, 189, 0.35), transparent 28%),
    linear-gradient(180deg, #fbfaf7 0%, var(--bg) 100%);
  font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", sans-serif;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.site-shell {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.site-shell::before,
.site-shell::after {
  content: "";
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(50px);
  opacity: 0.5;
  pointer-events: none;
  z-index: -1;
}

.site-shell::before {
  top: -140px;
  right: -140px;
  background: rgba(47, 102, 255, 0.13);
}

.site-shell::after {
  left: -140px;
  bottom: -180px;
  background: rgba(240, 225, 202, 0.55);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(16px);
  background: rgba(248, 245, 239, 0.8);
  border-bottom: 1px solid var(--line-soft);
}

.nav {
  width: var(--content-width);
  margin: 0 auto;
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "Manrope", sans-serif;
  font-size: 1.18rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.brand-mark {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: linear-gradient(135deg, #2f66ff, #7ea6ff);
  box-shadow: 0 0 0 6px rgba(47, 102, 255, 0.09);
}

.brand span:last-child {
  color: var(--muted);
  font-weight: 700;
}

.brand-home {
  font-size: 1.22rem;
  font-weight: 800;
}

.brand-home .brand-main {
  color: #1f2430;
}

.brand-home .brand-accent {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(18px, 1.8vw, 32px);
  color: #40444d;
  font-size: 0.96rem;
}

.nav-links a {
  position: relative;
  transition: color 180ms ease;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -13px;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 180ms ease;
}

.nav-links a:hover,
.nav-links a.is-active {
  color: var(--text);
}

.nav-links a:hover::after,
.nav-links a.is-active::after {
  transform: scaleX(1);
}

.nav-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.meta-pill,
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 10px 15px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 0.92rem;
}

.meta-pill strong,
.chip strong {
  color: var(--text);
}

.meta-icon {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.84);
  color: #5a5f67;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-soft);
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, #2f66ff, #5f8cff);
  box-shadow: 0 18px 30px rgba(47, 102, 255, 0.18);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.82);
}

.button-small {
  min-height: 40px;
  padding: 0 16px;
  border-radius: 12px;
  font-size: 0.9rem;
}

.nav-toggle {
  display: none;
}

.page {
  width: var(--content-width);
  margin: 0 auto;
  padding: 34px 0 84px;
}

.home-page {
  padding-top: 22px;
}

.panel,
.card,
.project-card,
.timeline-card,
.contact-card,
.research-card,
.case-card,
.home-hero-panel,
.home-section {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: var(--shadow);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 700;
}

.home-hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(440px, 0.95fr);
  gap: clamp(26px, 2.8vw, 40px);
  padding: clamp(28px, 3vw, 44px);
  border-radius: 34px;
  align-items: center;
}

.home-hero-copy {
  padding-inline: clamp(2px, 0.6vw, 8px);
}

.home-brand-dot {
  width: 92px;
  height: 92px;
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 102, 255, 0.1), transparent 68%);
  transform: translate(-30px, -16px);
  pointer-events: none;
}

.home-name,
.home-title,
.page-title,
.section-title,
.card h3,
.timeline-card h3,
.project-card h3,
.contact-card h3,
.research-card h3,
.case-card h3 {
  margin: 0;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  letter-spacing: -0.04em;
}

.home-name {
  position: relative;
  z-index: 1;
  font-size: clamp(3.25rem, 6vw, 4.5rem);
  line-height: 1;
}

.home-title {
  margin-top: 10px;
  font-size: clamp(2rem, 3.7vw, 3.25rem);
  line-height: 1.28;
}

.home-title span {
  color: var(--accent);
}

.home-summary,
.lead,
.intro-text {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: clamp(0.98rem, 1.1vw, 1.05rem);
  line-height: 1.95;
}

.status-row,
.hero-meta,
.page-meta,
.card-tags,
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.status-row {
  margin-top: 22px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.84);
  font-size: 0.92rem;
  font-weight: 700;
}

.status-green {
  color: var(--green-text);
}

.status-amber {
  color: #9a6b1b;
  background: rgba(255, 245, 223, 0.96);
}

.status-blue {
  color: var(--accent);
}

.status-purple {
  color: var(--purple-text);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.home-hero-scene {
  position: relative;
  min-height: clamp(360px, 38vw, 470px);
  display: grid;
  align-items: center;
}

.scene-glow {
  position: absolute;
  inset: 40px 120px 40px 40px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(231, 221, 204, 0.45), transparent 65%);
}

.home-photo-card {
  position: absolute;
  left: clamp(20px, 11%, 92px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: min(100%, 224px);
  padding: 14px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.88);
  box-shadow: 0 22px 52px rgba(39, 53, 86, 0.12);
}

.photo-dot {
  position: absolute;
  top: 14px;
  left: 14px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(47, 102, 255, 0.12);
}

.home-photo-card img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 16px;
}

.home-info-card {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  width: min(100%, 420px);
  padding: 24px 26px;
  padding-left: clamp(148px, 14vw, 186px);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(249, 251, 255, 0.88));
  border: 1px solid rgba(40, 52, 82, 0.08);
  box-shadow: 0 20px 44px rgba(39, 53, 86, 0.08);
}

.info-item {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 14px;
  align-items: start;
}

.info-item + .info-item {
  margin-top: 18px;
}

.info-icon {
  color: var(--accent);
  font-size: 1.05rem;
  line-height: 1.6;
}

.info-item strong {
  display: block;
  font-size: 1.02rem;
}

.info-item span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.94rem;
}

.mini-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.mini-tags span,
.mini-badge,
.card-tags span,
.tag,
.stat {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  background: var(--accent-soft);
  color: var(--accent);
}

.mini-tags span {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--line-soft);
  color: #5c6270;
}

.home-section {
  margin-top: 18px;
  padding: 18px 18px 14px;
  border-radius: 22px;
}

.home-section-dark {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 255, 0.94));
  border: 1px solid rgba(39, 53, 86, 0.08);
}

.home-section-dark .section-bar-title h3,
.home-section-dark .section-bar-title p,
.home-section-dark .section-link {
  color: var(--text);
}

.section-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 2px 10px 16px;
}

.section-bar-title {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.section-bar-title h3 {
  margin: 0;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: clamp(1.35rem, 2vw, 1.9rem);
}

.section-bar-title p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.section-icon {
  color: var(--accent);
  font-size: 1.1rem;
}

.section-link {
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 700;
}

.experience-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.experience-card,
.project-mini-card {
  min-width: 0;
  padding: 16px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(248, 250, 255, 0.9));
  border: 1px solid rgba(39, 53, 86, 0.08);
}

.experience-card-dark {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(248, 251, 255, 0.92));
  border: 1px solid rgba(39, 53, 86, 0.08);
}

.experience-card-dark .experience-head h4,
.experience-card-dark .experience-head span,
.experience-card-dark .experience-time {
  color: var(--text);
}

.experience-card-dark p {
  color: var(--muted);
}

.experience-card-dark .card-tags span {
  background: rgba(222, 243, 230, 0.88);
  color: #58956e;
}

.company-mark {
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  padding: 8px;
  background: #fff;
  border: 1px solid rgba(39, 53, 86, 0.08);
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  font-size: 1.15rem;
  color: #fff;
}

.company-mark img,
.intern-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.mark-xiaomi {
  background: #ff6a00;
}

.mark-shangri {
  background: #bca16d;
}

.mark-dcd {
  background: #ffcf2e;
  color: #2c2c2c;
}

.mark-zyb {
  background: linear-gradient(135deg, #77b8ff, #f9d44f);
  color: #f44336;
  font-size: 1rem;
}

.experience-head {
  margin-top: 14px;
}

.experience-head h4,
.project-mini-card h4,
.research-title-row h4 {
  margin: 0;
  font-size: 1.05rem;
}

.experience-head span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.9rem;
}

.experience-time,
.research-en {
  margin-top: 10px;
  color: #677083;
  font-size: 0.88rem;
}

.experience-card p,
.research-desc,
.card p,
.timeline-card p,
.project-card p,
.contact-card p,
.research-card p,
.case-card p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 0.94rem;
}

.card-tags {
  margin-top: 14px;
}

.card-tags span {
  background: rgba(222, 243, 230, 0.88);
  color: #58956e;
}

.home-lower-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(380px, 0.88fr);
  gap: 18px;
  margin-top: 18px;
}

.project-mini-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.project-mini-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: rgba(247, 250, 255, 0.92);
  border-radius: 14px;
  border: 1px solid var(--line-soft);
  margin-bottom: 12px;
}

.project-mini-card h4 {
  margin-top: 0;
  font-size: 0.98rem;
}

.project-mini-card-link {
  display: block;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.project-mini-card-link:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 38px rgba(39, 53, 86, 0.12);
  border-color: rgba(47, 102, 255, 0.18);
}

.mini-badge {
  margin-top: 10px;
  width: fit-content;
}

.mini-badge-blue {
  background: rgba(230, 239, 255, 0.95);
  color: #4673d8;
}

.mini-badge-green {
  background: rgba(222, 243, 230, 0.88);
  color: #58956e;
}

.mini-badge-purple {
  background: rgba(242, 236, 255, 0.92);
  color: #8a65db;
}

.project-mini-card-abstract {
  display: flex;
  flex-direction: column;
  justify-content: end;
  min-height: 100%;
  background:
    radial-gradient(circle at 70% 30%, rgba(137, 177, 255, 0.75), transparent 16%),
    radial-gradient(circle at 56% 34%, rgba(230, 241, 255, 0.85), transparent 26%),
    linear-gradient(180deg, rgba(242, 247, 255, 0.95), rgba(235, 242, 255, 0.9));
}

.research-home-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding: 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(247, 250, 255, 0.92));
  border: 1px solid rgba(39, 53, 86, 0.08);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(380px, 1.05fr);
  gap: 26px;
  align-items: start;
}

.contact-copy-block {
  padding-top: 18px;
}

.contact-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  font-weight: 700;
  font-size: 1rem;
}

.contact-label::before {
  content: "✧";
}

.contact-big-title {
  margin: 22px 0 16px;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: clamp(3rem, 5vw, 5rem);
  line-height: 1.08;
  letter-spacing: -0.05em;
}

.contact-big-title span {
  color: var(--accent);
}

.contact-lead {
  margin: 0;
  color: #566070;
  font-size: 1.05rem;
  line-height: 1.9;
}

.availability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 34px;
}

.availability-card,
.contact-quote,
.contact-profile-card,
.contact-method-card {
  padding: 20px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(247, 250, 255, 0.92));
  border: 1px solid rgba(39, 53, 86, 0.08);
  box-shadow: var(--shadow);
}

.availability-card {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 96px;
  text-align: center;
  font-size: 0.96rem;
  font-weight: 700;
  color: #24324d;
}

.contact-quote {
  margin-top: 28px;
  border-color: rgba(76, 112, 204, 0.22);
}

.contact-quote strong {
  display: block;
  color: var(--accent);
  font-size: 3rem;
  line-height: 1;
}

.contact-right {
  display: grid;
  gap: 18px;
}

.contact-profile-card {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 22px;
  align-items: center;
}

.contact-avatar {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  overflow: hidden;
  background: linear-gradient(180deg, #dceafe, #f5f8ff);
}

.contact-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contact-profile-main h3 {
  margin: 0;
  font-size: 2rem;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
}

.status-open {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  margin-left: 10px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(47, 102, 255, 0.1);
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 700;
}

.contact-profile-main p {
  margin: 14px 0 0;
  color: #445065;
  line-height: 1.8;
  font-size: 1rem;
}

.contact-method-card {
  display: grid;
  grid-template-columns: 70px minmax(0, 1fr) 48px;
  gap: 18px;
  align-items: center;
  color: inherit;
}

.method-icon,
.method-action {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(47, 102, 255, 0.08);
  color: var(--accent);
  font-size: 1.5rem;
}

.method-action {
  width: 48px;
  height: 48px;
  background: rgba(247, 249, 252, 0.95);
  color: #1c2230;
  border: 1px solid rgba(39, 53, 86, 0.08);
  font-size: 1.1rem;
}

.method-copy h4 {
  margin: 0;
  font-size: 1.05rem;
}

.method-copy p {
  margin: 8px 0 0;
  color: #445065;
  font-size: 0.98rem;
}

.abstract-orbit {
  width: 104px;
  height: 104px;
  margin: 0 auto 22px;
  border-radius: 50%;
  border: 2px solid rgba(113, 155, 255, 0.5);
  position: relative;
}

.abstract-orbit::before,
.abstract-orbit::after {
  content: "";
  position: absolute;
  inset: 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.abstract-orbit::before {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, #a5c1ff, #eff5ff);
}

.abstract-orbit::after {
  width: 138px;
  height: 54px;
  border: 2px solid rgba(113, 155, 255, 0.35);
}

.research-home {
  padding-bottom: 18px;
}

.research-home-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(220px, 1.1fr);
  gap: 14px;
}

.research-copy {
  padding: 8px 10px 10px;
}

.research-title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.research-title-row h4 {
  font-family: "Manrope", sans-serif;
  font-size: 1.1rem;
}

.research-desc {
  margin-top: 12px;
}

.research-figure-home {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  border-radius: 16px;
  border: 1px solid rgba(39, 53, 86, 0.08);
  background: rgba(255, 255, 255, 0.92);
}

.research-figure-home img {
  width: 100%;
  max-height: 280px;
  object-fit: contain;
  border-radius: 12px;
}

.section {
  margin-top: 34px;
}

.hero h1,
.page-title {
  margin: 16px 0 18px;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: clamp(2.45rem, 4vw, 4.4rem);
  line-height: 1.1;
}

.page-title {
  font-size: clamp(2rem, 3vw, 3.35rem);
}

.hero,
.split,
.grid-2 {
  display: grid;
  gap: 22px;
}

.hero {
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  align-items: stretch;
}

.grid-3,
.grid-4 {
  display: grid;
  gap: 18px;
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.hero-copy,
.hero-visual,
.card,
.timeline-card,
.project-card,
.research-card,
.case-card,
.contact-card,
.feature-band {
  padding: 24px;
  border-radius: var(--radius-xl);
}

.feature-band {
  background: linear-gradient(180deg, rgba(238, 244, 255, 0.92), rgba(255, 255, 255, 0.78));
}

.portrait-card,
.portrait-notes,
.media-frame,
.research-figure {
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.9);
}

.portrait-card img,
.project-card img,
.media-frame img,
.research-figure img {
  width: 100%;
  object-fit: cover;
}

.portrait-card img {
  aspect-ratio: 0.85;
}

.project-card img,
.media-frame img {
  aspect-ratio: 16 / 10;
}

.profile-stack {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 18px;
}

.portrait-notes,
.note-list,
.flow-list,
.stack-list {
  display: grid;
  gap: 12px;
}

.portrait-notes {
  padding: 20px;
  align-content: center;
}

.note-list div,
.flow-list div,
.stack-list div {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(234, 240, 251, 0.75);
  color: var(--text);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.section-title {
  font-size: clamp(1.7rem, 2vw, 2.2rem);
}

.impact {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  color: var(--text);
  font-weight: 700;
}

.tag-sand {
  background: rgba(239, 229, 213, 0.78);
  color: #8e6632;
}

.tag-sage {
  background: rgba(220, 232, 223, 0.9);
  color: #426c4b;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-card header,
.project-card header,
.research-card header,
.case-card header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: start;
}

.timeline-card .time,
.subtle {
  color: var(--muted);
  font-size: 0.92rem;
}

.split {
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
}

.site-footer {
  width: var(--content-width);
  margin: 0 auto 28px;
  padding: 24px 0 0;
  border-top: 1px solid var(--line-soft);
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.page-shell {
  display: grid;
  gap: 18px;
}

.page-intro-card {
  padding: 22px 24px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(246, 250, 255, 0.92));
  border: 1px solid rgba(39, 53, 86, 0.08);
  box-shadow: var(--shadow);
}

.page-intro-card-plain {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.page-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
}

.page-intro-card .page-title {
  margin-top: 10px;
  margin-bottom: 10px;
}

.page-intro-card .intro-text {
  margin-top: 0;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.page-chip {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(39, 53, 86, 0.08);
  color: #667085;
  font-size: 0.86rem;
}

.list-stack {
  display: grid;
  gap: 14px;
}

.intern-card {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 18px;
  padding: 18px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(248, 251, 255, 0.92));
  border: 1px solid rgba(39, 53, 86, 0.08);
}

.intern-mark {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  background: #fff;
  border: 1px solid rgba(39, 53, 86, 0.08);
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  font-size: 1.2rem;
  color: #fff;
}

.intern-body {
  min-width: 0;
}

.intern-top {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: start;
  flex-wrap: wrap;
}

.intern-top h3 {
  margin: 0;
  font-size: 1.1rem;
}

.intern-role {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.92rem;
}

.intern-time {
  color: #667085;
  font-size: 0.9rem;
  white-space: nowrap;
}

.intern-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
  gap: 18px;
}

.intern-summary,
.intern-side,
.panel-card,
.research-side-card,
.research-wide-card,
.project-showcase-card {
  padding: 18px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(248, 251, 255, 0.92));
  border: 1px solid rgba(39, 53, 86, 0.08);
}

.panel-card {
  height: 100%;
}

.panel-card h3,
.research-side-card h3,
.research-wide-card h3,
.project-showcase-card h3 {
  margin: 0;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: 1.1rem;
}

.panel-card p,
.research-side-card p,
.research-wide-card p,
.project-showcase-card p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.75;
  font-size: 0.94rem;
}

.ai-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.96fr);
  gap: 18px;
}

.ai-products-hero {
  padding: 32px 38px;
}

.ai-product-stack {
  display: grid;
  gap: 18px;
}

.ai-product-card {
  display: grid;
  grid-template-columns: minmax(360px, 0.85fr) minmax(0, 1.15fr);
  gap: 28px;
  align-items: center;
  padding: 28px 32px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(248, 251, 255, 0.92));
  border: 1px solid rgba(39, 53, 86, 0.08);
  box-shadow: var(--shadow);
}

.ai-product-copy {
  min-width: 0;
}

.ai-product-copy h2 {
  margin: 0;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: clamp(1.55rem, 2vw, 2rem);
  letter-spacing: -0.03em;
}

.ai-product-subtitle {
  margin: 8px 0 0;
  color: #566070;
  font-size: 1rem;
}

.ai-product-points {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.ai-product-points p {
  margin: 0;
  color: #566070;
  line-height: 1.75;
  font-size: 0.95rem;
}

.ai-product-points strong {
  color: var(--text);
}

.ai-product-link {
  margin-top: 20px;
}

.ai-product-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  padding: 10px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(39, 53, 86, 0.08);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.ai-product-visual:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 42px rgba(39, 53, 86, 0.12);
  border-color: rgba(47, 102, 255, 0.16);
}

.ai-product-visual img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  border-radius: 12px;
  display: block;
  background: #fff;
}

.module-pills,
.metric-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.module-pills span,
.metric-pills span {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(240, 246, 255, 0.92);
  color: #4673d8;
  font-size: 0.84rem;
}

.shoprag-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.shoprag-details {
  margin-top: 18px;
}

.button-disabled {
  opacity: 0.7;
  cursor: default;
  pointer-events: none;
}

.shoprag-visual-card {
  display: grid;
  align-content: start;
}

.shoprag-preview {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: contain;
  object-position: center top;
  background: linear-gradient(180deg, #f9fbff 0%, #f3f6fc 100%);
  padding: 10px;
  border-radius: 16px;
  border: 1px solid rgba(39, 53, 86, 0.08);
  box-shadow: 0 14px 30px rgba(39, 53, 86, 0.08);
}

.ai-ads-preview {
  aspect-ratio: 10 / 11;
  object-fit: cover;
  object-position: top center;
  background: #f8fbff;
}

.preview-caption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

.blue-diagram {
  min-height: 100%;
  display: grid;
  align-content: center;
  gap: 14px;
  padding: 20px;
  border-radius: 22px;
  background:
    radial-gradient(circle at 82% 20%, rgba(95, 140, 255, 0.22), transparent 18%),
    linear-gradient(180deg, rgba(245, 249, 255, 0.98), rgba(236, 243, 255, 0.94));
  border: 1px solid rgba(76, 112, 204, 0.12);
}

.diagram-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.diagram-hub {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #2f66ff, #7ea6ff);
  color: #fff;
  font-weight: 800;
  box-shadow: 0 16px 30px rgba(47, 102, 255, 0.2);
}

.diagram-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.diagram-node {
  padding: 12px 10px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(76, 112, 204, 0.12);
  color: #456198;
  font-size: 0.84rem;
  text-align: center;
}

.research-layout {
  display: grid;
  grid-template-columns: minmax(360px, 1.08fr) minmax(0, 0.92fr);
  gap: 18px;
  align-items: stretch;
}

.research-visual-card {
  height: 100%;
  padding: 18px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(244, 248, 255, 0.94));
  border: 1px solid rgba(39, 53, 86, 0.08);
  box-shadow: var(--shadow);
}

.research-visual-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.research-visual-head h3 {
  margin: 6px 0 0;
  font-family: "Noto Serif SC", "Source Han Serif SC", serif;
  font-size: 1.16rem;
}

.mini-label {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(240, 246, 255, 0.96);
  color: #4471d2;
  font-size: 0.8rem;
  font-weight: 700;
}

.mini-note {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(39, 53, 86, 0.08);
  color: #7a8599;
  font-size: 0.8rem;
  white-space: nowrap;
}

.research-visual-card img {
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(39, 53, 86, 0.08);
  display: block;
  aspect-ratio: 14 / 8.2;
  object-fit: contain;
  background: rgba(248, 251, 255, 0.92);
}

.project-showcase-card {
  display: block;
  color: inherit;
}

.research-side {
  display: grid;
  gap: 14px;
  height: 100%;
}

.research-wide-card {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.project-showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.project-showcase-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 14px;
  margin-bottom: 14px;
  border: 1px solid rgba(39, 53, 86, 0.08);
}

@media (max-width: 1280px) {
  .experience-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project-mini-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ai-grid,
  .research-layout,
  .intern-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1140px) {
  .home-hero-panel,
  .home-lower-grid,
  .ai-product-card,
  .contact-layout,
  .hero,
  .split,
  .grid-4,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .home-info-card {
    position: relative;
    top: auto;
    right: auto;
    transform: none;
    width: 100%;
    padding-left: 24px;
    margin-top: 18px;
  }

  .home-photo-card {
    position: relative;
    left: auto;
    top: auto;
    transform: none;
    margin-bottom: 12px;
  }

  .home-hero-scene {
    min-height: auto;
  }

  .research-home-grid {
    grid-template-columns: 1fr;
  }

  .project-showcase-grid,
  .research-wide-card,
  .availability-grid {
    grid-template-columns: 1fr;
  }

  .contact-profile-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .nav {
    position: relative;
    min-height: 74px;
  }

  .nav-toggle {
    display: inline-flex;
    width: 46px;
    height: 46px;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    border: 1px solid var(--line-soft);
    background: rgba(255, 255, 255, 0.86);
    font-size: 1.2rem;
  }

  .nav-links,
  .nav-meta {
    display: none;
  }

  .nav.is-open .nav-links,
  .nav.is-open .nav-meta {
    display: flex;
    position: absolute;
    left: 0;
    right: 0;
    top: 74px;
    padding: 16px;
    background: rgba(248, 245, 239, 0.97);
    border-bottom: 1px solid var(--line-soft);
    flex-direction: column;
    align-items: flex-start;
  }

  .nav.is-open .nav-meta {
    top: auto;
    margin-top: 190px;
  }

  .page {
    padding: 20px 0 72px;
  }

  .home-hero-panel,
  .home-section,
  .card,
  .timeline-card,
  .project-card,
  .research-card,
  .case-card,
  .contact-card,
  .feature-band {
    padding: 18px;
    border-radius: 22px;
  }

  .experience-grid,
  .project-mini-grid,
  .profile-stack,
  .diagram-grid {
    grid-template-columns: 1fr;
  }

  .intern-card {
    grid-template-columns: 1fr;
  }

  .contact-method-card {
    grid-template-columns: 1fr;
  }

  .section-bar,
  .section-head,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .research-visual-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .mini-note {
    white-space: normal;
  }

  .home-name {
    font-size: 2.7rem;
  }

  .home-title,
  .page-title {
    font-size: 2.2rem;
  }
}

@media (max-width: 560px) {
  .home-title {
    font-size: 2rem;
    line-height: 1.22;
  }

  .home-summary {
    font-size: 0.96rem;
  }

  .home-photo-card {
    width: 100%;
  }

  .button {
    width: 100%;
  }

  .hero-actions,
  .hero-actions-home {
    flex-direction: column;
  }

  .project-mini-grid,
  .experience-grid {
    grid-template-columns: 1fr;
  }
}