/* =========================
   Design tokens
   ========================= */
:root {
  /* colors */
  --ink:        #081B33;   /* deep navy */
  --ink-2:      #0F2A4D;
  --ink-3:      #1B3A66;
  --paper:      #F5F7FA;
  --paper-2:    #FFFFFF;
  --line:       #E3E8EF;
  --line-2:     #D7DEE8;
  --text:       #0F1B2D;
  --text-2:     #4B5A6E;
  --text-3:     #8895A6;
  --text-onink: #E8EEF6;
  --text-onink-2: #A9B6C8;

  --cyan:       #14B8A6;   /* bio / life */
  --cyan-2:     #0E9A8B;
  --cyan-soft:  #5FD7C9;
  --gold:       #E89A3C;   /* warm / trust */
  --gold-2:     #C77F1F;
  --gold-soft:  #F2C079;

  /* type */
  --serif:  'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', serif;
  --sans:   'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --inter:  'Inter', var(--sans);
  --mono:   'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;

  /* layout */
  --container: 1200px;
  --gutter: 32px;
  --radius: 14px;
  --radius-lg: 22px;

  /* motion */
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* =========================
   Reset
   ========================= */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease); }
a:hover { color: var(--cyan); }
ul, ol { padding: 0; margin: 0; list-style: none; }
button { font: inherit; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 700; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* =========================
   Background decor (global) — 酷炫动态层
   ========================= */
.bg-decor,
.fg-decor {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.bg-decor { z-index: 0; }
.fg-decor { z-index: 2; }
.section, .nav, .footer { position: relative; z-index: 1; }

.bg-grid {
  position: absolute;
  inset: -2px;
  background-image:
    linear-gradient(rgba(20,184,166,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20,184,166,0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 75%);
  animation: gridShift 30s linear infinite;
}
@keyframes gridShift {
  0%   { background-position: 0 0, 0 0; }
  100% { background-position: 64px 64px, 64px 64px; }
}

.molecule {
  position: absolute;
  color: var(--cyan);
  filter: drop-shadow(0 0 28px rgba(20,184,166,0.22));
  animation: floatY 18s ease-in-out infinite;
}
.molecule--1 { top: 4%;  left: -140px; width: 380px; height: 380px; }
.molecule--2 { top: 58%; right: -120px; width: 300px; height: 300px; animation-delay: -6s; animation-duration: 22s; }
.molecule--3 { top: 22%; right: 8%;  width: 180px; height: 180px; animation-delay: -3s; animation-duration: 16s; color: var(--gold); filter: drop-shadow(0 0 20px rgba(232,154,60,0.28)); }
.molecule--4 { top: 78%; left: 12%;  width: 220px; height: 220px; animation-delay: -10s; animation-duration: 24s; }
@keyframes floatY {
  0%, 100% { transform: translateY(0)   rotate(0deg); }
  50%      { transform: translateY(-32px) rotate(10deg); }
}

/* DNA 双螺旋：左下角 */
.dna {
  position: absolute;
  left: 3.5%;
  top: 12vh;
  width: 130px;
  height: 80vh;
  opacity: .7;
  filter: drop-shadow(0 0 12px rgba(20,184,166,0.5));
  animation: dnaSpin 28s linear infinite;
  transform-origin: center;
}
@keyframes dnaSpin {
  0%   { transform: translateY(0)   rotate(0deg); }
  50%  { transform: translateY(-20px) rotate(2deg); }
  100% { transform: translateY(0)   rotate(0deg); }
}
.dna-strand--a { animation: waveA 8s ease-in-out infinite; }
.dna-strand--b { animation: waveB 8s ease-in-out infinite; }
@keyframes waveA {
  0%, 100% { transform: translateX(0); }
  50%      { transform: translateX(8px); }
}
@keyframes waveB {
  0%, 100% { transform: translateX(0); }
  50%      { transform: translateX(-8px); }
}
@media (max-width: 880px) { .dna { display: none; } }

/* 粒子流 */
.particles { position: absolute; inset: 0; }
.p {
  position: absolute;
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan), 0 0 24px rgba(20,184,166,0.4);
  opacity: 0;
  animation: particleRise 12s linear infinite;
}
.p--1  { left:  6%; bottom: 0;    animation-delay:  0s;  animation-duration: 14s; }
.p--2  { left: 14%; bottom: 0;    animation-delay: -3s;  animation-duration: 11s; background: var(--gold); box-shadow: 0 0 10px var(--gold), 0 0 20px rgba(232,154,60,0.4); }
.p--3  { left: 22%; bottom: 0;    animation-delay: -7s;  animation-duration: 13s; }
.p--4  { left: 32%; bottom: 0;    animation-delay: -1s;  animation-duration: 16s; }
.p--5  { left: 44%; bottom: 0;    animation-delay: -9s;  animation-duration: 10s; background: var(--gold); box-shadow: 0 0 10px var(--gold), 0 0 20px rgba(232,154,60,0.4); }
.p--6  { left: 56%; bottom: 0;    animation-delay: -4s;  animation-duration: 15s; }
.p--7  { left: 64%; bottom: 0;    animation-delay: -11s; animation-duration: 12s; }
.p--8  { left: 74%; bottom: 0;    animation-delay: -2s;  animation-duration: 17s; background: var(--gold); box-shadow: 0 0 10px var(--gold), 0 0 20px rgba(232,154,60,0.4); }
.p--9  { left: 82%; bottom: 0;    animation-delay: -6s;  animation-duration: 13s; }
.p--10 { left: 90%; bottom: 0;    animation-delay: -8s;  animation-duration: 14s; }
.p--11 { left: 38%; bottom: 0;    animation-delay: -13s; animation-duration: 18s; width: 3px; height: 3px; }
.p--12 { left: 70%; bottom: 0;    animation-delay: -10s; animation-duration: 15s; width: 3px; height: 3px; }
@keyframes particleRise {
  0%   { transform: translateY(0)    scale(0.8); opacity: 0; }
  10%  { opacity: 1; }
  50%  { opacity: .9; }
  90%  { opacity: .3; }
  100% { transform: translateY(-110vh) scale(1.2); opacity: 0; }
}

/* 顶部扫描光带 */
.scanline {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg,
    transparent 0%,
    rgba(20,184,166,0.0) 5%,
    rgba(20,184,166,0.8) 50%,
    rgba(20,184,166,0.0) 95%,
    transparent 100%);
  box-shadow: 0 0 18px rgba(20,184,166,0.6);
  animation: scanSweep 6s ease-in-out infinite;
  opacity: .75;
}
@keyframes scanSweep {
  0%, 100% { transform: translateY(0)   scaleX(0.4); opacity: 0; }
  10%      { opacity: .9; }
  50%      { transform: translateY(60vh) scaleX(1); opacity: .9; }
  90%      { opacity: .3; }
  100%     { transform: translateY(100vh) scaleX(0.4); opacity: 0; }
}

.bg-glow {
  position: absolute;
  width: 720px; height: 720px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: .35;
  animation: glowPulse 12s ease-in-out infinite;
}
.bg-glow--a {
  top: -200px; right: -200px;
  background: radial-gradient(circle, rgba(20,184,166,0.5), transparent 60%);
}
.bg-glow--b {
  bottom: -260px; left: -160px;
  background: radial-gradient(circle, rgba(232,154,60,0.32), transparent 60%);
  animation-delay: -6s;
}
@keyframes glowPulse {
  0%, 100% { transform: scale(1) translate(0, 0); }
  50%      { transform: scale(1.15) translate(20px, -10px); }
}

/* =========================
   Nav — 全屏背景 + 居中菜单
   ========================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  background: #061528;
  color: var(--text-onink);
  border-bottom: 1px solid #1B3A66;
}
.nav__inner {
  position: relative;
  width: 100%;
  max-width: 1320px;
  margin: 0 auto;
  padding: 16px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* 中间导航：绝对居中，相对 nav__inner */
.nav__links {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  gap: 28px;
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--text-onink-2);
}
.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text-onink);
}
.nav__brand:hover { color: var(--text-onink); }
.nav__brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border-radius: 10px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .04em;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--cyan-2) 100%);
  color: #fff;
  box-shadow: 0 6px 18px rgba(20,184,166,0.32);
}
.nav__brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.nav__brand-zh { font-family: var(--serif); font-size: 16px; letter-spacing: .12em; }
.nav__brand-en {
  font-family: var(--inter);
  font-size: 10px;
  letter-spacing: .32em;
  color: var(--text-onink-2);
  margin-top: 2px;
}
.nav__links {
  display: flex;
  gap: 28px;
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--text-onink-2);
}
.nav__links a { position: relative; padding: 6px 2px; }
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav__links a:hover { color: var(--text-onink); }
.nav__links a:hover::after { transform: scaleX(1); }
.nav__links-contact {
  color: var(--cyan-soft) !important;
  font-weight: 600;
}
.nav__links-contact::before {
  content: "●";
  color: var(--cyan);
  font-size: 8px;
  margin-right: 6px;
  vertical-align: middle;
  text-shadow: 0 0 6px var(--cyan);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 13px;
  letter-spacing: .08em;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-2) 100%);
  color: #1A1206;
  font-weight: 600;
  box-shadow: 0 6px 20px rgba(232,154,60,0.32);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.nav__cta:hover {
  color: #1A1206;
  transform: translateY(-1px);
  box-shadow: 0 10px 26px rgba(232,154,60,0.45);
}

/* 汉堡按钮（默认隐藏，< 880px 显示） */
.nav__burger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  padding: 0;
  background: rgba(20, 184, 166, 0.10);
  border: 1px solid rgba(20, 184, 166, 0.45);
  border-radius: 8px;
  color: var(--text-onink);
  cursor: pointer;
  position: relative;
  z-index: 70;
  transition: background .25s var(--ease), border-color .25s var(--ease);
}
.nav__burger:hover { background: rgba(20, 184, 166, 0.15); border-color: var(--cyan); }
.nav__burger span,
.nav__burger span::before,
.nav__burger span::after {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--text-onink);
  border-radius: 2px;
  transition: transform .3s var(--ease), top .3s var(--ease), opacity .2s var(--ease);
  position: relative;
}
.nav__burger span::before, .nav__burger span::after { content: ""; position: absolute; left: 0; }
.nav__burger span::before { top: -6px; }
.nav__burger span::after  { top:  6px; }
.nav--open .nav__burger span            { background: transparent; }
.nav--open .nav__burger span::before    { top: 0; transform: rotate(45deg); }
.nav--open .nav__burger span::after     { top: 0; transform: rotate(-45deg); }

/* =========================
   Section base
   ========================= */
.section {
  padding: 96px 0;
  position: relative;
}
.section__head { max-width: 820px; margin: 0 auto 52px; text-align: center; }
.section__head .eyebrow { justify-content: center; }
.section__title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.18;
  color: var(--text);
  margin-top: 16px;
  letter-spacing: -.005em;
  white-space: nowrap;
  max-width: 100%;
}
.section--profile .section__title,
.section--expertise .section__title,
.section--projects .section__title,
.section--honors .section__title { color: var(--text); }
.section--journey,
.section--contact {
  background: linear-gradient(180deg, #061528 0%, #081C36 100%);
  color: var(--text-onink);
}
.section--journey .section__title,
.section--contact .section__title { color: var(--text-onink); }
.section--journey .eyebrow,
.section--contact .eyebrow { color: var(--cyan-soft); }
.section--journey .section__head .eyebrow__line,
.section--contact .section__head .eyebrow__line { background: var(--cyan); }

.section__lede {
  margin-top: 18px;
  font-size: 16px;
  color: var(--text-2);
}
.section--journey .section__lede,
.section--contact .section__lede { color: var(--text-onink-2); }

.muted { color: var(--text-3); font-weight: 400; font-size: .85em; }
.accent { color: var(--cyan); }

/* Eyebrow */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--inter);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .32em;
  color: var(--cyan-2);
  text-transform: uppercase;
  white-space: nowrap;
}
.eyebrow__line {
  display: inline-block;
  width: 28px; height: 1px;
  background: var(--cyan);
}
.eyebrow--dark { color: var(--text-2); }
.eyebrow--dark .eyebrow__line { background: var(--text-2); }
.eyebrow--gold { color: var(--gold); }
.eyebrow--gold .eyebrow__line { background: var(--gold); }

/* =========================
   Hero
   ========================= */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 130px 0 70px;
  background: linear-gradient(180deg, #061528 0%, #08203D 100%);
  color: var(--text-onink);
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 30%, rgba(20,184,166,0.22), transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 80%, rgba(232,154,60,0.18), transparent 60%);
  pointer-events: none;
}
.hero__inner {
  position: relative;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: minmax(320px, 0.78fr) 1.22fr;
  gap: 72px;
  align-items: center;
}
.hero__portrait {
  position: relative;
  width: 100%;
  max-width: 380px;
  aspect-ratio: 3 / 4;
  margin: 0 auto;
}
.hero__portrait-frame {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0,0,0,0.55);
  background: #0E1F3A;
}
.hero__portrait-frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 18%;
  filter: saturate(1.05) contrast(1.04);
}
.hero__portrait-ring {
  position: absolute;
  inset: -16px;
  border: 1px solid rgba(20,184,166,0.45);
  border-radius: calc(var(--radius-lg) + 16px);
  pointer-events: none;
  animation: ringSpin 18s linear infinite;
}
@keyframes ringSpin {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
.hero__portrait-ring::before, .hero__portrait-ring::after {
  content: "";
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 14px var(--cyan);
}
.hero__portrait-ring::before { top: -5px; left: 24px; }
.hero__portrait-ring::after  { bottom: -5px; right: 24px; }

.hero__portrait-chip {
  position: absolute;
  bottom: -22px;
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  font-size: 13px;
  letter-spacing: .04em;
  background: rgba(15, 42, 77, 0.85);
  border: 1px solid rgba(20,184,166,0.35);
  color: var(--text-onink);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  white-space: nowrap;
}
.hero__portrait-chip .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .55; transform: scale(1.25); }
}

.hero__copy { max-width: 700px; }
.hero .eyebrow { color: var(--cyan-soft); }
.hero .eyebrow__line { background: var(--cyan); }

.hero__title {
  font-family: var(--serif);
  font-weight: 700;
  margin-top: 18px;
  display: flex;
  align-items: baseline;
  gap: 18px;
  flex-wrap: wrap;
}
.hero__title-cn {
  font-size: clamp(60px, 7.5vw, 110px);
  letter-spacing: .1em;
  line-height: .95;
  background: linear-gradient(180deg, #FFFFFF 0%, #A8BFD4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 40px rgba(20,184,166,0.18));
}
.hero__title-en {
  font-family: var(--inter);
  font-size: clamp(15px, 1.4vw, 19px);
  letter-spacing: .42em;
  color: var(--text-onink-2);
  font-weight: 500;
}

.hero__lede {
  margin-top: 22px;
  font-size: clamp(18px, 1.5vw, 21px);
  line-height: 1.6;
  color: var(--text-onink-2);
  max-width: 600px;
  letter-spacing: .005em;
}
.hero__lede em {
  font-style: normal;
  color: var(--cyan-soft);
  font-weight: 600;
  border-bottom: 1px dashed rgba(20,184,166,0.5);
  padding-bottom: 1px;
}

.hero__pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}
.hero__pills li {
  padding: 9px 20px;
  font-size: 14px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.20);
  background: rgba(255,255,255,0.04);
  color: var(--text-onink);
  letter-spacing: .04em;
  white-space: nowrap;
  transition: border-color .25s var(--ease), color .25s var(--ease), background .25s var(--ease);
}
.hero__pills li:hover {
  border-color: var(--cyan);
  color: var(--cyan-soft);
  background: rgba(20,184,166,0.08);
}

.hero__metrics {
  margin-top: 36px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 24px;
}
.metric__num {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1;
  color: var(--text-onink);
  letter-spacing: -.01em;
  white-space: nowrap;
}
.metric__num small {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 500;
  color: var(--cyan-soft);
  margin-left: 4px;
}
.metric__label {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-onink-2);
  letter-spacing: .04em;
  white-space: nowrap;
}

/* Hero 装饰：PCV2 衣壳分子模型（半透明，浮在右下角） */
.hero__bio {
  position: absolute;
  right: -120px;
  bottom: -80px;
  width: 520px;
  height: 520px;
  object-fit: contain;
  opacity: 0.18;
  filter: drop-shadow(0 0 30px rgba(20,184,166,0.25));
  animation: heroBioSpin 60s linear infinite, heroBioFloat 8s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}
.hero__bio-caption {
  position: absolute;
  right: 24px;
  bottom: 14px;
  font-family: var(--inter);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .12em;
  color: var(--cyan-soft);
  text-transform: uppercase;
  opacity: 0.7;
  pointer-events: none;
  z-index: 0;
}
@keyframes heroBioSpin {
  to { transform: rotate(360deg); }
}
@keyframes heroBioFloat {
  0%, 100% { translate: 0 0; }
  50%      { translate: 0 -14px; }
}
@media (max-width: 1100px) {
  .hero__bio { width: 380px; height: 380px; right: -80px; bottom: -60px; opacity: 0.14; }
}
@media (max-width: 880px) {
  .hero__bio { display: none; }
  .hero__bio-caption { display: none; }
}

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  font-size: 11px;
  letter-spacing: .32em;
  color: var(--text-onink-2);
  display: flex;
  align-items: center;
  flex-direction: column;
  gap: 10px;
  text-transform: uppercase;
}
.hero__scroll span {
  width: 1px;
  height: 36px;
  background: linear-gradient(180deg, transparent, var(--cyan));
  position: relative;
  overflow: hidden;
}
.hero__scroll span::after {
  content: "";
  position: absolute;
  top: -10px; left: 0;
  width: 100%; height: 10px;
  background: var(--cyan);
  animation: scrollDot 1.8s ease-in-out infinite;
}
@keyframes scrollDot {
  0%   { top: -10px; opacity: 0; }
  30%  { opacity: 1; }
  100% { top: 36px; opacity: 0; }
}

@media (max-width: 880px) {
  .hero { padding: 100px 0 70px; min-height: auto; }
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }
  .hero__portrait { max-width: 260px; }
  .hero__copy { margin: 0 auto; }
  .hero__pills { justify-content: center; }
  .hero__metrics { grid-template-columns: repeat(2, 1fr); row-gap: 24px; }
  .hero__scroll { display: none; }
  .section__title { white-space: normal; }
  .contact__title { white-space: normal; }
}

/* =========================
   Profile section
   ========================= */
.section--profile { background: var(--paper-2); }
.profile {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 60px;
  align-items: start;
}
.profile__text p {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.9;
  margin: 0 0 18px;
}
.profile__text strong { color: var(--text); font-weight: 600; }
.profile__text em {
  font-style: normal;
  color: var(--cyan-2);
  font-weight: 600;
  border-bottom: 1px dashed var(--cyan);
  padding-bottom: 1px;
}
.quote {
  margin: 30px 0 0;
  padding: 22px 26px;
  background: linear-gradient(135deg, #F1F8F6 0%, #FFF8EC 100%);
  border-left: 3px solid var(--cyan);
  border-radius: 0 12px 12px 0;
}
.quote p {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
  letter-spacing: .04em;
}
.quote footer {
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-2);
  letter-spacing: .12em;
}
.quote--light {
  background: rgba(255,255,255,0.06);
  border-left-color: var(--gold);
}
.quote--light p { color: var(--text-onink); }

.profile__card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 6px 22px;
  box-shadow: 0 18px 40px rgba(15, 27, 45, 0.06);
}
.profile__card-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 15px;
}
.profile__card-row:last-child { border-bottom: 0; }
.profile__card-row span {
  color: var(--text-3);
  font-size: 13px;
  letter-spacing: .08em;
  white-space: nowrap;
  flex-shrink: 0;
}
.profile__card-row b {
  color: var(--text);
  font-weight: 600;
  text-align: right;
  font-size: 15px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
@media (max-width: 820px) {
  .profile { grid-template-columns: 1fr; }
}

/* =========================
   Gallery — 横向滚动图册
   ========================= */
.section--gallery {
  background: linear-gradient(180deg, var(--paper) 0%, #EFF2F7 100%);
}
.gallery {
  position: relative;
  margin: 0 auto;
  max-width: 100%;
  padding: 0 var(--gutter);
}
.gallery__track {
  display: flex;
  gap: 18px;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: rgba(20,184,166,0.4) transparent;
  padding: 8px 4px 24px;
  -webkit-overflow-scrolling: touch;
  /* 左右渐进淡出（宽度 ≈ 页面留白的 3-4 倍，柔和过渡） */
  mask-image: linear-gradient(90deg,
    transparent 0,
    transparent 24px,
    #000 120px,
    #000 calc(100% - 120px),
    transparent calc(100% - 24px),
    transparent 100%);
  -webkit-mask-image: linear-gradient(90deg,
    transparent 0,
    transparent 24px,
    #000 120px,
    #000 calc(100% - 120px),
    transparent calc(100% - 24px),
    transparent 100%);
}
.gallery__track::-webkit-scrollbar { height: 6px; }
.gallery__track::-webkit-scrollbar-track { background: rgba(20,184,166,0.05); border-radius: 3px; }
.gallery__track::-webkit-scrollbar-thumb { background: rgba(20,184,166,0.45); border-radius: 3px; }
.gallery__track::-webkit-scrollbar-thumb:hover { background: rgba(20,184,166,0.7); }

.gallery__item {
  flex: 0 0 340px;
  height: 388px;                /* 固定总高：图片 308 + 标题 64 + 边框 */
  margin: 0;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  scroll-snap-align: start;
  position: relative;
  display: grid;
  grid-template-rows: 322px 64px;  /* 显式两行：图片 322 + 标题 64（硬编码，绝不浮动） */
  grid-template-columns: 1fr;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
  box-shadow: 0 6px 18px rgba(15, 27, 45, 0.04);
  cursor: zoom-in;               /* 提示可点击放大 */
}
.gallery__item:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  box-shadow: 0 16px 36px rgba(15, 27, 45, 0.10);
}
.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 14px;
  background: linear-gradient(135deg, #F2F8FB 0%, #FFF8EC 100%);
  display: block;
}
.gallery__item figcaption {
  height: 64px;                 /* 硬编码，所有卡片标题区同高 */
  padding: 8px 16px;
  border-top: 1px solid var(--line);
  background: var(--paper-2);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2px;
  min-width: 0;
  overflow: hidden;
}
.gallery__name {
  font-family: var(--serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
  letter-spacing: .01em;
  height: 20px;                 /* 锁死单行高度 */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.gallery__sub {
  font-family: var(--inter);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan-2);
  height: 14px;                 /* 锁死单行高度 */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 左右按钮 */
.gallery__nav {
  position: absolute;
  top: 158px; /* 图片区域 (380-64)/2 = 158 — 与图片视觉中心对齐 */
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--paper-2);
  border: 1px solid var(--line);
  color: var(--cyan-2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 5;
  box-shadow: 0 8px 20px rgba(15, 27, 45, 0.10);
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}
.gallery__nav:hover {
  background: var(--cyan);
  color: #fff;
  border-color: var(--cyan);
  transform: translateY(-1px);
}
.gallery__nav:disabled,
.gallery__nav[aria-disabled="true"] {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}
.gallery__nav svg { width: 18px; height: 18px; }
.gallery__nav--prev { left: calc(var(--gutter) - 6px); }
.gallery__nav--next { right: calc(var(--gutter) - 6px); }

.gallery__counter {
  position: absolute;
  right: var(--gutter);
  bottom: 0;
  font-family: var(--inter);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--text-2);
}
.gallery__current { color: var(--cyan-2); font-weight: 700; font-size: 14px; }
.gallery__sep    { margin: 0 4px; color: var(--text-3); }
.gallery__total  { color: var(--text-3); }

@media (max-width: 720px) {
  /* 移动端：全宽一图 + snap 翻页 */
  .gallery {
    position: relative;
  }
  .gallery__track {
    /* 去掉左右渐变 */
    mask-image: none;
    -webkit-mask-image: none;
    /* snap 模式 */
    scroll-snap-type: x mandatory;
    scroll-padding: 0;
    gap: 0;
    scrollbar-width: none;
  }
  .gallery__track::-webkit-scrollbar { display: none; }
  .gallery__item {
    flex: 0 0 calc(100vw - 2 * var(--gutter) - 80px);
    display: flex;
    flex-direction: column;
    aspect-ratio: 4 / 2.6;
    max-height: 300px;     /* 硬限制，防止图片撑爆 */
    overflow: hidden;
    border-radius: 12px;
    background: var(--paper-2);
    border: 1px solid var(--line);
    scroll-snap-align: start;
  }
  .gallery__item img {
    flex: 1 1 0;           /* 占满剩余空间，受 box 约束 */
    min-height: 0;         /* 允许 flex item 缩到比内容小 */
    width: 100%;
    max-width: 100%;
    object-fit: contain;
    padding: 10px;
    display: block;
  }
  .gallery__item figcaption {
    flex-shrink: 0;        /* 标题固定不压缩 */
    height: 56px;
    padding: 6px 14px;
  }
  /* 左右按钮：绝对定位，由 JS 同步位置确保两个按钮严格同高 */
  .gallery__nav  {
    position: absolute;
    width: 36px;
    height: 36px;
    margin-top: 0;         /* JS 会设置 top */
    transform: translateY(-50%);
    z-index: 5;
  }
  .gallery__nav--prev { left: 4px; }
  .gallery__nav--next { right: 4px; }
  /* counter 居中 */
  .gallery__counter {
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    bottom: -22px;
  }
}
@media (max-width: 480px) {
  .gallery__item { aspect-ratio: 4 / 3; }
  .gallery__item img { padding: 8px; }
  .gallery__item figcaption { height: 50px; padding: 4px 10px; }
  .gallery__name { font-size: 14px; height: 18px; }
  .gallery__sub  { font-size: 10px; height: 12px; }
}
.timeline {
  position: relative;
  margin: 0 auto;
  max-width: 1040px;
  padding: 8px 0 0;
}
.timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 60px 180px 32px 1fr;
  gap: 22px;
  align-items: center;
  padding: 18px 20px;
  border-radius: 12px;
  border: 1px solid transparent;
  transition: background .35s var(--ease), border-color .35s var(--ease), transform .35s var(--ease);
}
.timeline__item + .timeline__item { margin-top: 4px; }
.timeline__item:hover {
  background: rgba(20,184,166,0.04);
  border-color: rgba(20,184,166,0.18);
  transform: translateX(2px);
}

/* 中央时间轴线（贯穿全部 item） */
.timeline__node {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}
.timeline__node::before {
  content: "";
  position: absolute;
  top: -18px; bottom: -22px;
  left: 50%;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(20,184,166,0.45) 12%, rgba(20,184,166,0.45) 88%, transparent);
  transform: translateX(-50%);
}
.timeline__item:first-child .timeline__node::before { top: 50%; }
.timeline__item:last-child  .timeline__node::before { bottom: 50%; }

.timeline__node span {
  position: relative;
  z-index: 1;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: #0A2540;
  border: 2px solid var(--cyan);
  box-shadow: 0 0 10px rgba(20,184,166,0.45);
  transition: transform .3s var(--ease);
}
.timeline__item:hover .timeline__node span { transform: scale(1.25); }
.timeline__item--now .timeline__node span {
  width: 16px; height: 16px;
  background: var(--cyan);
  border-color: #fff;
  box-shadow: 0 0 0 4px rgba(20,184,166,0.25), 0 0 20px var(--cyan);
  animation: nodePulse 2s ease-in-out infinite;
}
@keyframes nodePulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(20,184,166,0.25), 0 0 20px var(--cyan); }
  50%      { box-shadow: 0 0 0 8px rgba(20,184,166,0.10), 0 0 28px var(--cyan); }
}

.timeline__no {
  font-family: var(--inter);
  font-size: 36px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -.02em;
  text-align: right;
  line-height: 1;
  opacity: .55;
  transition: opacity .3s var(--ease), color .3s var(--ease);
}
.timeline__item:hover .timeline__no { opacity: 1; }
.timeline__item--now .timeline__no { opacity: 1; color: var(--gold); }

.timeline__meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.timeline__year {
  font-family: var(--inter);
  font-size: 13px;
  font-weight: 600;
  color: var(--cyan-soft);
  letter-spacing: .04em;
}
.timeline__company {
  font-size: 12px;
  color: var(--text-onink-2);
  letter-spacing: .02em;
}

.timeline__body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.timeline__role {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--text-onink);
  letter-spacing: .01em;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.timeline__detail {
  color: var(--text-onink-2);
  font-size: 14px;
  line-height: 1.65;
}
.timeline__detail strong { color: var(--cyan-soft); font-weight: 600; }
.timeline__item--now .timeline__role { color: #fff; }
.timeline__item--now .timeline__detail { color: rgba(232,238,246,0.85); }

@media (max-width: 760px) {
  .timeline__item {
    grid-template-columns: 40px 24px 1fr;
    grid-template-areas: "no node body" ". meta meta";
    gap: 14px;
    padding: 14px 14px;
  }
  .timeline__no { grid-area: no; font-size: 26px; }
  .timeline__node { grid-area: node; }
  .timeline__body { grid-area: body; }
  .timeline__meta { grid-area: meta; flex-direction: row; gap: 12px; }
  .timeline__role { font-size: 18px; white-space: normal; }
  .timeline__detail { font-size: 13px; }
  .project__title { white-space: normal; }
  .exp-card h3 { white-space: normal; }
}

/* =========================
   Expertise (4 cards)
   ========================= */
.expertise {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.exp-card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px 26px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  position: relative;
  overflow: hidden;
}
.exp-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--cyan) 0%, transparent 50%);
  opacity: 0;
  transition: opacity .3s var(--ease);
  z-index: 0;
  pointer-events: none;
}
.exp-card > * { position: relative; z-index: 1; }
.exp-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 50px rgba(15, 27, 45, 0.10);
  border-color: var(--cyan);
}
.exp-card__icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #E6FBF7 0%, #F2F8FB 100%);
  color: var(--cyan-2);
  margin-bottom: 20px;
}
.exp-card__icon svg { width: 32px; height: 32px; }

/* 卡片配图：替代图标 */
.exp-card__figure {
  margin: 0 0 20px;
  height: 140px;
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(135deg, #F2F8FB 0%, #E6FBF7 100%);
  position: relative;
  border: 1px solid var(--line);
}
.exp-card__figure img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 8px;
  transition: transform .4s var(--ease);
}
.exp-card:hover .exp-card__figure img { transform: scale(1.05); }
.exp-card h3 {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: .02em;
  white-space: nowrap;
}
.exp-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  margin: 0 0 18px;
}
.exp-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  border-top: 1px dashed var(--line);
  padding-top: 14px;
}
.exp-card__tags li {
  font-size: 13px;
  color: var(--cyan-2);
  background: #ECF8F5;
  padding: 4px 10px;
  border-radius: 4px;
  letter-spacing: .04em;
  white-space: nowrap;
}
@media (max-width: 960px) { .expertise { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .expertise { grid-template-columns: 1fr; } }

.expertise__strip {
  margin-top: 36px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  padding: 18px 22px;
  background: #ECF8F5;
  border: 1px solid #D6F0E9;
  border-radius: var(--radius);
}
.strip__label {
  font-size: 12px;
  color: var(--cyan-2);
  letter-spacing: .12em;
  font-weight: 600;
}
.strip__items {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 14px;
  color: var(--text-2);
}
.strip__items span { position: relative; padding-left: 14px; }
.strip__items span::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  transform: translateY(-50%);
}

/* =========================
   Projects
   ========================= */
.projects {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.project {
  position: relative;
  padding: 30px 30px 26px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
  overflow: hidden;
}
.project::after {
  content: "";
  position: absolute;
  top: 0; right: 0;
  width: 160px; height: 160px;
  background: radial-gradient(circle at top right, rgba(20,184,166,0.10), transparent 70%);
  pointer-events: none;
}
.project:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(15, 27, 45, 0.08);
}
.project__no {
  font-family: var(--inter);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .3em;
  color: var(--cyan-2);
  white-space: nowrap;
}

/* 项目配图：右上角小图 + 左下角小标签 */
.project__figure {
  position: relative;
  margin: 0 0 16px;
  height: 200px;
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(135deg, #F2F8FB 0%, #FFF8EC 100%);
  border: 1px solid var(--line);
}
.project__figure img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 12px;
  transition: transform .5s var(--ease);
}
.project:hover .project__figure img { transform: scale(1.04); }
.project__figure figcaption {
  position: absolute;
  left: 12px;
  bottom: 10px;
  font-family: var(--inter);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #fff;
  background: rgba(8, 27, 51, 0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 5px 10px;
  border-radius: 4px;
  white-space: nowrap;
}
.project__title {
  font-family: var(--serif);
  font-size: 25px;
  color: var(--text);
  margin: 8px 0 4px;
  letter-spacing: .01em;
  line-height: 1.3;
  font-weight: 600;
}
.project__sub {
  font-size: 13px;
  color: var(--text-3);
  letter-spacing: .04em;
  margin-bottom: 18px;
}
.project__points {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px dashed var(--line);
  padding-top: 16px;
}
.project__points li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
}
.project__points li::before {
  content: "";
  position: absolute;
  left: 0; top: 10px;
  width: 6px; height: 6px;
  border: 1.5px solid var(--cyan);
  border-radius: 1px;
  transform: rotate(45deg);
}
.project__points strong { color: var(--text); font-weight: 600; }
.project__tag {
  display: inline-block;
  margin-top: 18px;
  padding: 6px 12px;
  font-size: 13px;
  color: var(--gold-2);
  background: #FBF1DF;
  border: 1px solid #F2DDA9;
  border-radius: 4px;
  letter-spacing: .04em;
  white-space: nowrap;
}
@media (max-width: 760px) { .projects { grid-template-columns: 1fr; } }

/* =========================
   Honors
   ========================= */
.honors {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.honor-block {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
}
.honor-block--wide { grid-column: 1 / -1; }
.honor-block__title {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--serif);
  font-size: 21px;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: .02em;
  white-space: nowrap;
}
.honor-block__title .num {
  font-family: var(--inter);
  font-size: 34px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0;
}
.honor-list { display: flex; flex-direction: column; gap: 14px; }
.honor-list li {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 16px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 14px;
  color: var(--text-2);
}
.honor-list li:last-child { border-bottom: 0; }
.hl-year {
  font-family: var(--inter);
  font-weight: 600;
  color: var(--cyan-2);
  font-size: 14px;
  white-space: nowrap;
}
.hl-body strong { color: var(--text); }
.honor-block__lede {
  font-size: 14px;
  color: var(--text-2);
  margin: 0 0 22px;
}
.ecosystem {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.eco {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
}
.eco__tag {
  font-family: var(--inter);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .12em;
  color: #fff;
  background: var(--ink);
  padding: 4px 8px;
  border-radius: 4px;
}
.eco__name { font-size: 14px; color: var(--text); font-weight: 500; }
@media (max-width: 820px) {
  .honors { grid-template-columns: 1fr; }
  .ecosystem { grid-template-columns: 1fr; }
}

.certs {
  margin-top: 28px;
  padding: 26px 30px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.certs__label {
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: .12em;
  margin-bottom: 14px;
  font-weight: 600;
}
.certs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.certs__list span {
  font-size: 13px;
  color: var(--text-2);
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: 6px;
  letter-spacing: .02em;
}

/* =========================
   AI 赋能 · 自我评价
   ========================= */
.ai-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.ai-card {
  position: relative;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px 26px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  overflow: hidden;
}
.ai-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 50px rgba(15, 27, 45, 0.10);
  border-color: var(--cyan);
}
.ai-card__figure {
  position: relative;
  width: 100%;
  height: 180px;
  margin: 0 0 18px;
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(135deg, #F2F8FB 0%, #FFF8EC 100%);
  border: 1px solid var(--line);
}
.ai-card__figure img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 10px;
  display: block;
  transition: transform .5s var(--ease);
}
.ai-card:hover .ai-card__figure img { transform: scale(1.04); }
.ai-card h3 {
  font-family: var(--serif);
  font-size: 19px;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: .01em;
  line-height: 1.4;
}
.ai-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.8;
  margin: 0;
}
.self-eval {
  margin-top: 36px;
  padding: 26px 30px;
  background: linear-gradient(135deg, #F1F8F6 0%, #FFF8EC 100%);
  border: 1px solid #D6F0E9;
  border-radius: var(--radius);
}
.self-eval__head {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--cyan-2);
  margin-bottom: 16px;
}
.self-eval__items {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.self-eval__items span {
  font-size: 13px;
  color: var(--text-2);
  background: var(--paper-2);
  border: 1px solid var(--line);
  padding: 7px 14px;
  border-radius: 999px;
  letter-spacing: .02em;
}
.self-eval__closing {
  margin: 18px 0 0;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: .06em;
}
@media (max-width: 960px) { .ai-grid { grid-template-columns: 1fr; } }
@media (max-width: 720px) {
  .ai-card { padding: 22px 18px 20px; }
  .ai-card__figure { height: 150px; }
  .ai-card__figure img { padding: 8px; }
  .ai-card h3 { font-size: 17px; }
  .ai-card p { font-size: 13px; }
  .self-eval { padding: 22px 18px; }
}

/* =========================
   市场全景图（嵌在 AI · SELF 段尾部）
   ========================= */
.eyebrow--accent {
  color: var(--cyan);
}
.eyebrow--accent .eyebrow__line {
  background: var(--cyan);
}
.market-figure {
  margin: 36px 0 0;
  padding: 28px 30px 26px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 12px 32px rgba(15, 27, 45, 0.06);
}
.market-figure__head {
  text-align: left;
  margin-bottom: 18px;
}
.market-figure__title {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.35;
  color: var(--text-1);
  margin: 10px 0 8px;
  font-weight: 600;
}
.market-figure__lede {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
  margin: 0;
  max-width: 780px;
}
.market-figure__frame {
  position: relative;
  border-radius: 14px;
  overflow: hidden;
  background: #fafbfc;
  border: 1px solid var(--line);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}
.market-figure__frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}
.market-figure__caption {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
  padding: 0;
}
.market-figure__chip {
  display: inline-flex;
  align-items: center;
  font-size: 12.5px;
  color: var(--text-1);
  background: rgba(34, 184, 207, 0.10);
  border: 1px solid rgba(34, 184, 207, 0.35);
  padding: 5px 11px;
  border-radius: 999px;
  font-weight: 500;
  letter-spacing: .01em;
}
.market-figure__chip--soft {
  color: var(--text-2);
  background: transparent;
  border-color: var(--line);
  font-weight: 400;
}
@media (max-width: 720px) {
  .market-figure { padding: 22px 18px 20px; }
  .market-figure__title { font-size: 18px; }
  .market-figure__lede { font-size: 13px; }
  .market-figure__chip { font-size: 12px; padding: 4px 9px; }
}

/* =========================
   Contact
   ========================= */
.section--contact { padding-bottom: 100px; }
.contact {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: start;
}
.contact__title {
  font-family: var(--serif);
  font-size: clamp(32px, 4vw, 50px);
  line-height: 1.25;
  color: var(--text-onink);
  margin-top: 18px;
  letter-spacing: .01em;
  white-space: nowrap;
  max-width: 100%;
}
.contact__lede {
  margin: 24px 0 32px;
  font-size: 16px;
  color: var(--text-onink-2);
  line-height: 1.8;
}
.contact__right {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact-card {
  display: block;
  padding: 22px 26px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius);
  color: var(--text-onink);
  transition: background .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease);
}
a.contact-card:hover {
  background: rgba(20,184,166,0.10);
  border-color: var(--cyan);
  color: var(--text-onink);
  transform: translateY(-2px);
}
.contact-card--static { background: linear-gradient(135deg, rgba(232,154,60,0.12), rgba(232,154,60,0.04)); border-color: rgba(232,154,60,0.30); }
.contact-card--wechat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  padding: 24px 26px 22px;
}
/* "访问官网"二维码：桌面隐藏，仅移动端展示（写在 .contact-card--wechat 之后，避免被覆盖） */
.contact-card--mobile-only { display: none; }
@media (max-width: 720px) {
  .contact-card--mobile-only { display: flex; }
}
.contact-card__qrcode {
  width: 160px;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.28);
  /* 保证 iOS 长按菜单（保存/分享）可用 */
  -webkit-touch-callout: default;
  touch-action: manipulation;
}
.contact-card__label {
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--text-onink-2);
  text-transform: uppercase;
  font-weight: 600;
}
.contact-card__value {
  margin-top: 6px;
  font-family: var(--serif);
  font-size: 22px;
  color: var(--text-onink);
  letter-spacing: .02em;
}
.contact-card__hint {
  margin-top: 6px;
  font-size: 12px;
  color: var(--text-onink-2);
  letter-spacing: .04em;
}
.contact-card__hint-sub {
  display: block;
  margin-top: 2px;
  font-size: 10px;
  letter-spacing: .08em;
  color: var(--gold-soft);
}

/* ---------- 二维码 Lightbox：点击放大 + 长按分享 ---------- */
.qr-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(8, 27, 51, 0.85); /* --ink 深海军蓝 */
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  z-index: 9999;
  -webkit-tap-highlight-color: transparent;
}
.qr-lightbox--open { display: flex; }
.qr-lightbox__img {
  width: min(320px, 80vw);
  background: #fff;
  padding: 16px;
  border-radius: 12px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  /* 保证 iOS 长按菜单（保存/分享）可用 */
  -webkit-touch-callout: default;
  touch-action: manipulation;
}
.qr-lightbox__tip {
  margin: 0;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--gold-soft);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.45);
}
.qr-lightbox__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  background: transparent;
  color: #fff;
  font-size: 34px;
  line-height: 1;
  cursor: pointer;
  opacity: 0.85;
  -webkit-tap-highlight-color: transparent;
}
.qr-lightbox__close:hover { opacity: 1; }

/* =========================
   Image Lightbox（图册点击放大）
   ========================= */
.img-lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(2, 10, 22, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease);
  padding: 40px 24px;
}
.img-lightbox--open {
  opacity: 1;
  pointer-events: auto;
}
.img-lightbox__close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  font-size: 28px;
  line-height: 1;
  border-radius: 50%;
  cursor: pointer;
  transition: background .2s var(--ease), border-color .2s var(--ease);
  -webkit-tap-highlight-color: transparent;
  z-index: 2;
}
.img-lightbox__close:hover {
  background: var(--cyan);
  border-color: var(--cyan);
}
.img-lightbox__figure {
  margin: 0;
  max-width: min(1100px, 95vw);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.img-lightbox__img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 12px;
  background: linear-gradient(135deg, #F2F8FB 0%, #FFF8EC 100%);
  padding: 16px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  /* 入场 */
  transform: scale(0.94);
  transition: transform .35s var(--ease);
}
.img-lightbox--open .img-lightbox__img { transform: scale(1); }
.img-lightbox__cap {
  text-align: center;
  color: #E8EEF6;
  min-width: 200px;
}
.img-lightbox__name {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  letter-spacing: .01em;
  margin-bottom: 4px;
}
.img-lightbox__sub {
  font-family: var(--inter);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan-soft);
}
@media (max-width: 720px) {
  .img-lightbox { padding: 24px 16px; }
  .img-lightbox__img { padding: 12px; max-height: 70vh; }
  .img-lightbox__name { font-size: 16px; }
  .img-lightbox__close { top: 12px; right: 12px; width: 40px; height: 40px; font-size: 24px; }
}

@media (max-width: 820px) { .contact { grid-template-columns: 1fr; gap: 40px; } }

/* =========================
   Footer
   ========================= */
.footer {
  background: #050F1F;
  color: var(--text-onink-2);
  padding: 24px 0;
  font-size: 12px;
  letter-spacing: .04em;
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.footer__meta { color: var(--cyan-soft); }

/* =========================
   Reveal on scroll
   ========================= */
.reveal {
  /* 默认就可见；JS 没跑时也保证内容显示 */
  opacity: 1;
  transform: none;
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.js .reveal:not(.is-in) {
  opacity: 0;
  transform: translateY(20px);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* ============================================================
   Mobile responsive — 统一断点：880 / 720 / 480
   ============================================================ */

/* ---------- 880px：平板及以下（多数 section 切单列） ---------- */
@media (max-width: 880px) {
  :root { --gutter: 22px; }

  .dna { display: none; }
  .molecule { display: none; }
  .scanline { display: none; }
  .p--7, .p--8, .p--9, .p--10, .p--11, .p--12 { display: none; }

  .nav__inner {
    padding: 12px var(--gutter);
    gap: 12px;
  }
  .nav__cta { padding: 8px 14px; font-size: 12px; }

  /* 移动端：汉堡按钮 + 右侧滑出抽屉 */
  .nav__burger { display: inline-flex; }

  /* 背景遮罩 */
  .nav__backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    opacity: 0;
    pointer-events: none;
    z-index: 48;
    transition: opacity .3s var(--ease);
  }
  .nav--open .nav__backdrop {
    opacity: 1;
    pointer-events: auto;
  }

  /* 右侧抽屉 */
  .nav__links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(82vw, 320px);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 84px 24px 32px;
    background: #061528;
    border-left: 1px solid #1B3A66;
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.55);
    z-index: 60;
    transform: translateX(100%);
    transition: transform .35s var(--ease);
  }
  .nav--open .nav__links { transform: translateX(0); }

  .nav__links a {
    padding: 18px 4px;
    font-size: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-onink);
  }
  .nav__links a:last-child { border-bottom: 0; }
  .nav__links a::after { display: none; }
  .nav__links a:hover { color: var(--cyan-soft); }
  .nav__links-contact {
    margin-top: 12px;
    padding-top: 22px !important;
    border-top: 1px solid rgba(20, 184, 166, 0.30) !important;
    font-size: 17px !important;
  }
  .nav__links-contact::before { font-size: 10px; }

  .section { padding: 80px 0; }
  .section__head { margin: 0 auto 40px; }
  .section__title { font-size: clamp(30px, 7vw, 44px); line-height: 1.22; }
  .section__lede { font-size: 15px; }

  .eyebrow { font-size: 12px; letter-spacing: .26em; }

  /* Hero */
  .hero { padding: 100px 0 60px; min-height: auto; }
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 44px;
    text-align: center;
  }
  .hero__portrait { max-width: 240px; }
  .hero__portrait-ring { inset: -10px; }
  .hero__copy { margin: 0 auto; max-width: 100%; }
  .hero__pills { justify-content: center; }
  .hero__lede { font-size: 17px; line-height: 1.65; max-width: 100%; }
  .hero__metrics {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 28px;
    text-align: center;
    margin-top: 28px;
    padding-top: 22px;
  }
  .metric__num { font-size: 36px; }
  .hero__scroll { display: none; }

  /* Profile */
  .profile { grid-template-columns: 1fr; gap: 40px; }
  .profile__text p { font-size: 15px; line-height: 1.8; }
  .quote p { font-size: 19px; }

  /* Journey */
  .timeline { max-width: 100%; }

  /* Expertise */
  .expertise { grid-template-columns: repeat(2, 1fr); }
  .exp-card { padding: 24px 20px 22px; }
  .exp-card h3 { font-size: 20px; }
  .exp-card__figure { height: 120px; margin-bottom: 16px; }

  /* Projects */
  .project { padding: 24px 22px 22px; }
  .project__title { font-size: 21px; }

  /* Honors */
  .honor-block { padding: 24px 22px; }
  .honor-block__title { font-size: 19px; }
  .honor-block__title .num { font-size: 30px; }

  /* Contact */
  .contact { grid-template-columns: 1fr; gap: 36px; }
  .contact__title { font-size: clamp(28px, 6vw, 36px); line-height: 1.3; }
  .contact-card { padding: 20px 22px; }
  .contact-card__value { font-size: 21px; }

  /* Footer */
  .footer__inner { flex-direction: column; text-align: center; gap: 8px; }
}

/* ---------- 720px：大屏手机 ---------- */
@media (max-width: 720px) {
  :root { --gutter: 18px; }

  .section { padding: 64px 0; }
  .section__head { margin: 0 auto 32px; }
  .section__title { font-size: clamp(26px, 7vw, 36px); }

  .nav__inner { padding: 11px var(--gutter); }
  .nav__brand-text { display: none; }
  .nav__cta { padding: 8px 12px; font-size: 12px; }

  /* Hero */
  .hero { padding: 88px 0 50px; }
  .hero__portrait { max-width: 200px; }
  .hero__portrait-chip { font-size: 12px; padding: 8px 14px; }
  .hero__title-cn { font-size: clamp(52px, 14vw, 76px); }
  .hero__title-en { font-size: 12px; letter-spacing: .28em; }
  .hero .eyebrow { font-size: 11px; letter-spacing: .2em; white-space: normal; text-align: center; }
  .hero__lede { font-size: 16px; }
  .hero__pills li { padding: 7px 14px; font-size: 13px; }
  .metric__num { font-size: 32px; }
  .metric__num small { font-size: 13px; }
  .metric__label { font-size: 12px; }

  /* Profile card */
  .profile__card-row { font-size: 14px; padding: 14px 0; }
  .profile__card-row b { font-size: 14px; }

  /* Timeline — 4 列变 3 列 */
  .timeline__item {
    grid-template-columns: 36px 22px 1fr;
    grid-template-areas:
      "no node body"
      ".  meta meta";
    gap: 12px 14px;
    padding: 14px;
  }
  .timeline__no { grid-area: no; font-size: 24px; }
  .timeline__node { grid-area: node; }
  .timeline__body { grid-area: body; }
  .timeline__meta {
    grid-area: meta;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px 14px;
  }
  .timeline__year { font-size: 12px; }
  .timeline__company { font-size: 11px; }
  .timeline__role { font-size: 16px; white-space: normal; }
  .timeline__detail { font-size: 13px; line-height: 1.6; }
  .timeline__no { white-space: nowrap; }

  /* Expertise — 1 列 */
  .expertise { grid-template-columns: 1fr; gap: 14px; }
  .expertise__strip { padding: 14px 16px; gap: 12px; }
  .strip__label { font-size: 11px; }
  .strip__items { font-size: 13px; gap: 6px 12px; }

  /* Projects — 1 列 */
  .projects { grid-template-columns: 1fr; gap: 14px; }
  .project { padding: 22px 20px 20px; }
  .project__figure { height: 160px; margin-bottom: 12px; }
  .project__title { font-size: 19px; white-space: normal; }
  .project__no { font-size: 12px; }
  .project__sub { font-size: 12px; }
  .project__points li { font-size: 13px; }

  /* Honors */
  .honors { grid-template-columns: 1fr; gap: 14px; }
  .ecosystem { grid-template-columns: 1fr; gap: 10px; }
  .eco__name { font-size: 13px; }
  .honor-list li { grid-template-columns: 56px 1fr; gap: 12px; font-size: 13px; }
  .certs { padding: 22px 18px; }
  .certs__list span { font-size: 12px; padding: 5px 10px; }

  /* Contact */
  .contact__lede { font-size: 15px; }
  .contact-card { padding: 18px 20px; }
  .contact-card__label { font-size: 11px; }
  .contact-card__value { font-size: 19px; letter-spacing: 0; }
  .contact-card__hint { font-size: 11px; }
  .contact-card__qrcode { width: 200px; }

  .quote p { font-size: 17px; }
}

/* ---------- 480px：小屏手机 ---------- */
@media (max-width: 480px) {
  :root { --gutter: 16px; }

  .section { padding: 56px 0; }
  .section__title { font-size: 26px; line-height: 1.25; }
  .section__head { margin: 0 auto 28px; }

  .nav__inner { padding: 10px var(--gutter); }
  .nav__brand-mark { width: 34px; height: 34px; font-size: 14px; }
  .nav__cta { padding: 7px 11px; font-size: 11px; }
  .nav__links { padding-top: 78px; }
  .nav__links a { padding: 16px 4px; font-size: 15px; }

  .hero { padding: 80px 0 44px; }
  .hero__portrait { max-width: 180px; }
  .hero__portrait-ring { inset: -8px; }
  .hero__portrait-ring::before, .hero__portrait-ring::after { width: 8px; height: 8px; }
  .hero__portrait-ring::before { left: 12px; }
  .hero__portrait-ring::after  { right: 12px; }
  .hero__portrait-chip { font-size: 11px; padding: 7px 12px; }
  .hero__title-cn { font-size: 48px; letter-spacing: .08em; }
  .hero__title-en { font-size: 11px; letter-spacing: .24em; }
  .hero .eyebrow { font-size: 10px; letter-spacing: .18em; }
  .hero__lede { font-size: 15px; line-height: 1.6; }
  .hero__pills { gap: 6px; margin-top: 20px; }
  .hero__pills li { padding: 6px 12px; font-size: 12px; }
  .hero__metrics { grid-template-columns: repeat(2, 1fr); row-gap: 22px; gap: 8px; padding-top: 20px; margin-top: 24px; }
  .metric__num { font-size: 28px; }
  .metric__num small { font-size: 12px; }
  .metric__label { font-size: 11px; }

  .profile__card { padding: 4px 16px; }
  .profile__card-row { font-size: 13px; padding: 12px 0; }
  .profile__card-row span { font-size: 12px; }
  .profile__card-row b { font-size: 13px; }

  .timeline__item { padding: 12px 12px; gap: 10px 12px; }
  .timeline__no { font-size: 20px; }
  .timeline__role { font-size: 15px; }
  .timeline__detail { font-size: 12px; }
  .timeline__year, .timeline__company { font-size: 11px; }

  .exp-card { padding: 22px 18px 20px; }
  .exp-card h3 { font-size: 18px; }
  .exp-card p { font-size: 13px; }
  .exp-card__tags li { font-size: 12px; padding: 3px 8px; }

  .project { padding: 22px 18px 20px; }
  .project__title { font-size: 17px; }

  .honor-block { padding: 22px 18px; }
  .honor-block__title { font-size: 17px; }
  .honor-block__title .num { font-size: 26px; }
  .honor-list li { grid-template-columns: 50px 1fr; font-size: 12px; padding: 10px 0; }
  .hl-year { font-size: 12px; }

  .contact__title { font-size: 24px; }
  .contact-card { padding: 16px 18px; }
  .contact-card__value { font-size: 17px; }

  .footer { padding: 20px 0; font-size: 11px; }
}

/* ============================================================
   手机端适配增强（只在 ≤820px 生效，桌面完全不受影响）
   目标：字够大、看得清、少滑动
   ============================================================ */
@media (max-width: 820px) {
  /* 1) 正文与说明文字放大，保证手机上不费眼 */
  body { font-size: 16px; }
  .hero__sub, .hero__lead { font-size: 15.5px; line-height: 1.85; }
  .profile__card-row { font-size: 15px; }
  .profile__card-row span { font-size: 13px; }
  .profile__card-row b { font-size: 15px; }
  .profile__text p, .section__lede, .lede { font-size: 15.5px; }
  .timeline__role { font-size: 16.5px; }
  .timeline__detail { font-size: 14.5px; line-height: 1.75; }
  .timeline__year, .timeline__company { font-size: 12.5px; }
  .exp-card h3 { font-size: 19px; }
  .exp-card p { font-size: 14.5px; line-height: 1.8; }
  .exp-card__tags li { font-size: 12.5px; }
  .project__title { font-size: 18px; }
  .project li, .project__points li, .project p { font-size: 14.5px; line-height: 1.8; }
  .honor-list li { font-size: 14.5px; }
  .hl-year { font-size: 12.5px; }
  .certs__list span { font-size: 13.5px; }
  .ai-card h3 { font-size: 18px; }
  .ai-card p { font-size: 14.5px; line-height: 1.8; }
  .contact-card__hint, .contact-card__hint-sub { font-size: 13px; }
  .footer { font-size: 12px; }

  /* 2) 装饰线条在手机上收敛，别压文字 */
  .fg-decor { opacity: .35; }
  .molecule { display: none; }

  /* 3) 板块间距收紧 */
  .section { padding-top: 56px; padding-bottom: 56px; }

  /* 4) 折叠：默认只露精华 */
  .m-folded > .timeline__item:nth-child(n+6),
  .m-folded > .exp-card:nth-child(n+3),
  .m-folded > .project:nth-child(n+3),
  .m-folded > .ai-card:nth-child(n+2),
  .m-folded.certs .certs__list > span:nth-child(n+5) { display: none; }

  /* 5) 展开按钮 */
  .m-more {
    display: block;
    width: 100%;
    margin: 14px auto 0;
    padding: 12px 0;
    font-size: 14.5px;
    color: #7FE3D2;
    background: rgba(20, 184, 166, .08);
    border: 1px solid rgba(20, 184, 166, .35);
    border-radius: 999px;
    cursor: pointer;
  }
}

@media (min-width: 821px) {
  .m-more { display: none !important; }
}

/* ============================================================
   手机端稳健性修复
   ─ 原因：旧版靠 .js + IntersectionObserver 做入场动画，
     手机 webview 里脚本一报错，全站内容就长期 opacity:0，
     只剩装饰 DNA，看起来像卡在加载页。
   处理：手机端彻底关掉「先隐藏再显现」，内容始终可见。
   ============================================================ */
@media (max-width: 880px) {
  .js .reveal:not(.is-in) { opacity: 1 !important; transform: none !important; }
  .reveal { transition: none !important; }
  /* 手机不再显示整屏的固定装饰，避免看着像加载动画 */
  .fg-decor { display: none !important; }
  .bg-decor .dna, .bg-decor .scanline, .bg-decor .noise { display: none !important; }
}

/* ============================================================
   v9：背景换成实验室图 + 历程改时间轴 + 去装饰更清爽
   ============================================================ */

/* 1) 全站背景：固定实验室图 + 柔化遮罩（浅色板块淡淡透出来） */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: url("./assets/bg-lab.webp") center / cover no-repeat;
  opacity: .30;
  z-index: -2;
  pointer-events: none;
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(245,247,250,.72) 0%, rgba(245,247,250,.86) 55%, rgba(245,247,250,.94) 100%);
  z-index: -1;
  pointer-events: none;
}

/* 2) 首屏：图片更清楚地出现在右侧 */
.hero {
  background:
    linear-gradient(90deg, rgba(6,16,28,.94) 0%, rgba(6,16,28,.86) 42%, rgba(6,16,28,.52) 72%, rgba(6,16,28,.34) 100%),
    url("./assets/bg-lab.webp") center / cover no-repeat !important;
}

/* 3) 深色板块也透出一点图 */
.section--journey,
.section--contact {
  background-image: linear-gradient(180deg, rgba(6,21,40,.92) 0%, rgba(8,28,54,.94) 100%), url("./assets/bg-lab.webp") !important;
  background-size: auto, cover !important;
  background-position: center, center !important;
  background-repeat: no-repeat !important;
}

/* 4) 浅色板块半透明，让底图轻微透出 */
.section--profile { background: rgba(248,250,252,.82); }
.section--gallery { background: linear-gradient(180deg, rgba(248,250,252,.86), rgba(239,242,247,.88)); }

/* 5) 收起装饰，界面更清爽 */
.fg-decor { display: none !important; }
.bg-decor .dna,
.bg-decor .molecule,
.bg-decor .particles,
.bg-decor .scanline,
.bg-decor .noise { display: none !important; }

/* 6) 历程：改成简洁时间轴（左年份 / 中轴线与点 / 右内容） */
.timeline {
  max-width: 900px;
  padding: 4px 0;
}
.timeline__item {
  grid-template-columns: 108px 24px 1fr;
  gap: 0 20px;
  align-items: start;
  padding: 0 0 26px;
  border: 0;
  border-radius: 0;
  background: none !important;
  transform: none !important;
}
.timeline__item:last-child { padding-bottom: 0; }
.timeline__no { display: none; }
.timeline__meta {
  display: block;
  padding-top: 3px;
  text-align: right;
}
.timeline__year {
  font-family: var(--inter);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--cyan-soft);
  white-space: nowrap;
}
.timeline__company {
  margin-top: 4px;
  font-size: 11.5px;
  line-height: 1.5;
  color: rgba(232,238,246,.55);
}
.timeline__node { align-items: flex-start; }
.timeline__node::before {
  top: 14px; bottom: -26px;
  background: linear-gradient(180deg, rgba(20,184,166,.5), rgba(20,184,166,.28));
}
.timeline__item:first-child .timeline__node::before { top: 14px; }
.timeline__item:last-child .timeline__node::before { bottom: calc(100% - 18px); }
.timeline__node span {
  margin-top: 8px;
  width: 10px; height: 10px;
  background: #0A2540;
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(20,184,166,.10);
}
.timeline__body {
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  padding-left: 2px;
}
.timeline__item:last-child .timeline__body { border-bottom: 0; }
.timeline__role {
  font-size: 17px;
  font-weight: 600;
  color: #fff;
  white-space: normal;
  line-height: 1.4;
}
.timeline__detail {
  margin-top: 6px;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(232,238,246,.72);
}

@media (max-width: 720px) {
  .timeline__item {
    grid-template-columns: 1fr;
    gap: 6px;
    padding-left: 22px;
    padding-bottom: 22px;
  }
  .timeline__meta { text-align: left; }
  .timeline__node {
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 12px;
  }
  .timeline__node span { margin-top: 6px; }
  .timeline__node::before { left: 5px; top: 14px; bottom: -22px; }
  .timeline__year { font-size: 12px; }
  .timeline__role { font-size: 16px; }
  .timeline__detail { font-size: 13.5px; }
}

/* 7) 时间轴微调：年份列加宽，公司名不折断 */
.timeline__item { grid-template-columns: 140px 24px 1fr; }
.timeline__company { font-size: 11.5px; }
@media (max-width: 720px) {
  .timeline__item { grid-template-columns: 1fr; }
}

/* 8) 首屏右下的分子装饰会压住数字，直接去掉，界面更干净 */
.hero__bio { display: none !important; }

/* 9) 首屏高度贴合一屏 */
.hero { padding-top: 84px; padding-bottom: 64px; }
.hero__metrics { margin-top: 34px; }

/* 10) 隐藏 PCV2 装饰说明文字（与数字重叠） */
.hero__bio-caption { display: none !important; }

/* 11) 手机时间轴顺序修正：年份在上，标题在下 */
@media (max-width: 720px) {
  .timeline__item {
    grid-template-areas: none;
    grid-template-columns: 1fr;
  }
  .timeline__meta { order: -1; margin-bottom: 2px; }
  .timeline__body { order: 1; }
  .timeline__year { font-size: 12px; letter-spacing: .06em; }
  .timeline__company { margin-top: 2px; }
}

/* 12) 手机时间轴：清掉旧版 grid-area，避免年份与标题叠在一起 */
@media (max-width: 720px) {
  .timeline__item { grid-template-areas: none !important; grid-template-columns: 1fr !important; }
  .timeline__meta,
  .timeline__body,
  .timeline__node,
  .timeline__no { grid-area: auto !important; }
  .timeline__meta { order: -1; }
  .timeline__body { order: 1; }
}

/* 13) 浅色板块让背景图更明显一些（仍保证文字对比） */
body::before { opacity: .42; }
body::after {
  background: linear-gradient(180deg, rgba(245,247,250,.62) 0%, rgba(245,247,250,.76) 55%, rgba(245,247,250,.86) 100%);
}
.section--profile { background: rgba(255,255,255,.74); }
.section--gallery { background: linear-gradient(180deg, rgba(255,255,255,.78), rgba(239,242,247,.82)); }
.section--expertise, .section--projects, .section--honors, .section--ai { background: rgba(255,255,255,.70); }

/* 14) 首屏高度：桌面留白，手机压回一屏 */
@media (max-width: 820px) {
  .hero { padding-top: 18px !important; padding-bottom: 18px !important; }
  .hero__metrics { margin-top: 18px; }
}

/* ============================================================
   v10：深色 → 浅色（首屏/历程/联系/导航/页脚）
   保留布局、字体与背景图，只换配色
   ============================================================ */
:root {
  --v10-ink: #12161A;
  --v10-ink-2: #4B5563;
  --v10-ink-3: #8B9299;
  --v10-line: #E6E4DD;
  --v10-accent: #0F6B5C;
  --v10-paper: #FBFAF7;
}

/* 1) 导航改成浅色玻璃条 */
.nav {
  background: rgba(251,250,247,.88) !important;
  border-bottom: 1px solid var(--v10-line) !important;
  color: var(--v10-ink) !important;
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
}
.nav a, .nav__links a, .nav__link, .brand, .brand span { color: var(--v10-ink) !important; }
.nav__links a:hover, .nav a:hover { color: var(--v10-accent) !important; }
.nav__links a::after { background: var(--v10-accent) !important; }
.nav .btn, .nav__cta { background: var(--v10-accent) !important; color: #fff !important; border-color: transparent !important; }
.nav__toggle span, .nav__burger span, .hamburger span { background: var(--v10-ink) !important; }

/* 2) 首屏浅色化：白纱盖住图，文字转深 */
.hero {
  background:
    linear-gradient(180deg, rgba(251,250,247,.72) 0%, rgba(251,250,247,.80) 45%, rgba(251,250,247,.94) 100%),
    url("./assets/bg-lab.webp") center / cover no-repeat !important;
  color: var(--v10-ink) !important;
}
.hero .eyebrow { color: var(--v10-accent) !important; }
.hero .eyebrow__line { background: var(--v10-accent) !important; }
.hero__title-cn,
.hero__title,
.hero__title-en { color: var(--v10-ink) !important; }
.hero__title-en { color: var(--v10-ink-3) !important; }
.hero__lede { color: var(--v10-ink-2) !important; }
.hero__lede em { color: var(--v10-accent) !important; font-style: normal; }
.hero__pills li {
  background: rgba(255,255,255,.75) !important;
  border: 1px solid rgba(15,107,92,.22) !important;
  color: var(--v10-accent) !important;
}
.metric__num { color: var(--v10-accent) !important; }
.metric__label { color: var(--v10-ink-3) !important; }
.metric { border-color: rgba(18,22,26,.10) !important; }
.hero__scroll { color: var(--v10-ink-3) !important; }
.hero__scroll span { background: var(--v10-ink-3) !important; }
.hero__portrait, .hero__figure, .hero__media { box-shadow: 0 18px 44px rgba(10,34,28,.12); }

/* 3) 历程板块浅色化 */
.section--journey {
  background-image:
    linear-gradient(180deg, rgba(244,245,241,.90) 0%, rgba(244,245,241,.94) 100%),
    url("./assets/bg-lab.webp") !important;
  background-size: auto, cover !important;
  background-position: center, center !important;
  color: var(--v10-ink) !important;
}
.section--journey .section__title { color: var(--v10-ink) !important; }
.section--journey .section__lede { color: var(--v10-ink-2) !important; }
.section--journey .eyebrow { color: var(--v10-accent) !important; }
.section--journey .eyebrow__line { background: var(--v10-accent) !important; }
.timeline__year { color: var(--v10-accent) !important; }
.timeline__company { color: var(--v10-ink-3) !important; }
.timeline__role { color: var(--v10-ink) !important; }
.timeline__detail { color: var(--v10-ink-2) !important; }
.timeline__detail strong { color: var(--v10-accent) !important; }
.timeline__body { border-bottom-color: var(--v10-line) !important; }
.timeline__node::before { background: linear-gradient(180deg, rgba(15,107,92,.45), rgba(15,107,92,.22)) !important; }
.timeline__node span {
  background: #fff !important;
  border-color: var(--v10-accent) !important;
  box-shadow: 0 0 0 4px rgba(15,107,92,.10) !important;
}
.timeline__item--now .timeline__role { color: var(--v10-accent) !important; }
.timeline__item--now .timeline__node span { background: var(--v10-accent) !important; border-color: #fff !important; }

/* 4) 联系板块浅色化 */
.section--contact {
  background-image:
    linear-gradient(180deg, rgba(251,250,247,.92) 0%, rgba(251,250,247,.96) 100%),
    url("./assets/bg-lab.webp") !important;
  background-size: auto, cover !important;
  background-position: center, center !important;
  color: var(--v10-ink) !important;
}
.section--contact .contact__title { color: var(--v10-ink) !important; }
.section--contact .contact__title .accent { color: var(--v10-accent) !important; }
.section--contact .contact__lede { color: var(--v10-ink-2) !important; }
.section--contact .eyebrow { color: var(--v10-accent) !important; }
.section--contact .eyebrow__line { background: var(--v10-accent) !important; }
.quote--light { color: var(--v10-ink-2) !important; border-left-color: var(--v10-accent) !important; }
.quote--light footer { color: var(--v10-ink-3) !important; }
.contact-card {
  background: rgba(255,255,255,.86) !important;
  border: 1px solid var(--v10-line) !important;
  color: var(--v10-ink) !important;
}
.contact-card__label { color: var(--v10-ink-3) !important; }
.contact-card__value { color: var(--v10-ink) !important; }
.contact-card__hint, .contact-card__hint-sub { color: var(--v10-ink-3) !important; }

/* 5) 页脚浅色 */
.footer { background: var(--v10-paper) !important; color: var(--v10-ink-3) !important; border-top: 1px solid var(--v10-line); }
.footer a { color: var(--v10-ink-2) !important; }

/* 15) 浅色化：修正首屏大字的渐变裁切（深色下好看，浅色下几乎看不见） */
.hero__title-cn,
.hero__title-en {
  background-image: none !important;
  -webkit-text-fill-color: currentColor !important;
  background-clip: border-box !important;
  -webkit-background-clip: border-box !important;
}
.hero__title-cn { color: var(--v10-ink) !important; }
.hero__title-en { color: var(--v10-ink-3) !important; }

/* 指标标签略加深，浅底上更清楚 */
.metric__label { color: #6B7280 !important; }

/* 首屏渐变文字里的强调保持墨绿 */
.hero__lede em { color: var(--v10-accent) !important; }

/* 16) 联系区引言与页脚：浅底上提高对比 */
.quote--light p, .quote--light { color: var(--v10-ink-2) !important; }
.section--contact .quote, .section--contact .quote p { color: var(--v10-ink-2) !important; }
.footer, .footer * { color: #6B7280 !important; }
.footer__meta, .footer a { color: var(--v10-ink-2) !important; }

/* 17) AI 板块底色（原来深蓝）转浅 */
.section--ai { background: rgba(246,248,246,.86) !important; }

/* ============================================================
   18) 时间轴改为「纵向中轴 + 左右交替」
   ============================================================ */
.timeline {
  position: relative;
  max-width: 940px;
  margin: 0 auto;
  padding: 8px 0 0;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, rgba(15,107,92,.05), rgba(15,107,92,.35) 8%, rgba(15,107,92,.35) 92%, rgba(15,107,92,.05));
  transform: translateX(-.5px);
}

.timeline__item {
  position: relative;
  display: block !important;
  width: 50%;
  padding: 0 46px 30px 0 !important;
  margin: 0 0 0 0 !important;
  text-align: right;
  border: 0 !important;
  background: none !important;
  transform: none !important;
}
.timeline__item:nth-child(even) {
  margin-left: 50% !important;
  padding: 0 0 30px 46px !important;
  text-align: left;
}
.timeline__item:last-child { padding-bottom: 0 !important; }

.timeline__no { display: none !important; }

.timeline__meta,
.timeline__body { grid-area: auto !important; }

.timeline__meta {
  display: block !important;
  padding-top: 0 !important;
  margin-bottom: 5px;
  text-align: inherit;
}
.timeline__year {
  display: inline-block;
  font-family: var(--inter);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--v10-accent) !important;
  background: rgba(15,107,92,.08);
  border-radius: 999px;
  padding: 2px 10px;
  white-space: nowrap;
}
.timeline__company {
  margin-top: 6px !important;
  font-size: 11.5px;
  color: #8B9299 !important;
}

.timeline__body {
  border-bottom: 0 !important;
  padding: 0 !important;
}
.timeline__role {
  font-size: 17px !important;
  line-height: 1.45 !important;
  color: var(--v10-ink) !important;
  white-space: normal !important;
  margin-bottom: 4px;
}
.timeline__detail {
  font-size: 13.5px !important;
  line-height: 1.75 !important;
  color: #4B5563 !important;
}

/* 中轴圆点 */
.timeline__node {
  position: absolute !important;
  top: 4px !important;
  bottom: auto !important;
  left: auto !important;
  right: -6px !important;
  width: 12px !important;
  height: 12px !important;
  margin: 0 !important;
  padding: 0 !important;
  z-index: 2;
}
.timeline__item:nth-child(even) .timeline__node { right: auto !important; left: -6px !important; }
.timeline__node::before { display: none !important; }
.timeline__node span {
  width: 11px !important; height: 11px !important;
  margin: 0 !important;
  background: #fff !important;
  border: 2px solid var(--v10-accent) !important;
  box-shadow: 0 0 0 4px rgba(15,107,92,.10) !important;
}
.timeline__item--now .timeline__node span {
  background: var(--v10-accent) !important;
  border-color: #fff !important;
  box-shadow: 0 0 0 5px rgba(15,107,92,.16) !important;
}

/* 手机：单列，竖线靠左，文字左对齐 */
@media (max-width: 820px) {
  .timeline { padding-left: 4px; }
  .timeline::before { left: 5px; top: 4px; bottom: 4px; }
  .timeline__item,
  .timeline__item:nth-child(even) {
    width: 100% !important;
    margin-left: 0 !important;
    padding: 0 0 24px 26px !important;
    text-align: left;
  }
  .timeline__node,
  .timeline__item:nth-child(even) .timeline__node {
    left: 0 !important; right: auto !important; top: 6px !important;
  }
  .timeline__node span { width: 10px !important; height: 10px !important; }
  .timeline__role { font-size: 16.5px !important; }
  .timeline__detail { font-size: 14px !important; }
}

/* 19) 浅色底上的标题强调色加深，避免浅青发白 */
.section .section__title .accent,
.section .contact__title .accent,
.section--journey .section__title .accent {
  background-image: none !important;
  -webkit-text-fill-color: currentColor !important;
  color: #0B5A4D !important;
}
.contact-card__value, .honor-block__title, .exp-card h3, .project__title { color: #12161A !important; }