/* ===== 设计变量 ===== */
:root {
  --color-bg: #fafaf8;
  --color-bg-alt: #f3f1ee;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-text-secondary: #6b6b6b;
  --color-border: #e6e3de;
  --color-accent: #e0935c;
  --color-accent-light: #fbeee1;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", Helvetica, "Microsoft YaHei", Arial, sans-serif;
  --max-width: 1120px;
  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ===== 滚动渐入 ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 导航栏 ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 248, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.navbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-name {
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}
.nav-links {
  display: flex;
  gap: 28px;
  font-size: 14px;
  color: var(--color-text-secondary);
}
.nav-links a:hover { color: var(--color-text); }

.nav-view-toggle { display: flex; gap: 6px; flex-shrink: 0; }

.view-btn {
  font-family: var(--font-sans);
  font-size: 13px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.view-btn:hover { border-color: var(--color-accent); color: var(--color-text); }
.view-btn.active {
  background: var(--color-text);
  color: #fff;
  border-color: var(--color-text);
}

@media (max-width: 860px) {
  .nav-links { display: none; }
}

/* ===== Hero ===== */
.hero {
  padding: 96px 24px 72px;
  text-align: center;
}
.hero-inner { max-width: 760px; margin: 0 auto; }

.hero-avatar {
  width: 128px;
  height: 128px;
  margin: 0 auto 32px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--color-surface);
  box-shadow: 0 8px 30px rgba(0,0,0,0.08);
}
.hero-avatar img { width: 100%; height: 100%; object-fit: cover; }

.hero-headline {
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.hero-subheadline {
  font-size: 15.5px;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto 24px;
  line-height: 1.9;
}

.hero-tag {
  font-size: 13.5px;
  color: var(--color-text-secondary);
  padding: 8px 18px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  display: inline-block;
  margin-bottom: 36px;
}

.hero-view-toggle {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 28px;
}
.hero-view-toggle .view-btn { font-size: 14px; padding: 9px 20px; }

.hero-cta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.cta-btn {
  font-size: 14px;
  padding: 11px 22px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  transition: all var(--transition);
  display: inline-block;
}
.cta-btn:hover {
  border-color: var(--color-text);
  background: var(--color-text);
  color: #fff;
}
.cta-btn-accent {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}
.cta-btn-accent:hover {
  background: #c97a44;
  border-color: #c97a44;
}

/* ===== Sections ===== */
.section { padding: 88px 24px; }
.section-alt { background: var(--color-bg-alt); }
.section-inner { max-width: var(--max-width); margin: 0 auto; }

.section-title {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 40px;
  letter-spacing: -0.01em;
}
.subsection-title {
  font-size: 17px;
  font-weight: 600;
  margin: 48px 0 20px;
  color: var(--color-text-secondary);
}
.section-hint {
  font-size: 13.5px;
  color: var(--color-text-secondary);
  margin-top: -24px;
  margin-bottom: 32px;
}

/* ===== 标签云 ===== */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-size: 12.5px;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

/* ===== 教育背景 ===== */
.edu-row {
  display: grid;
  grid-template-columns: 0.8fr 1.1fr 1.1fr;
  gap: 20px;
  margin-bottom: 48px;
}
.edu-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 28px 24px;
}
.gaokao-card {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.gaokao-score {
  font-size: 52px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}
.gaokao-label { font-size: 13px; color: var(--color-text-secondary); margin-top: 10px; }
.gaokao-detail { font-size: 12.5px; color: var(--color-text-secondary); margin-top: 4px; }

.school-logo-wrap { height: 56px; display: flex; align-items: center; margin-bottom: 16px; }
.school-logo {
  max-height: 56px;
  max-width: 140px;
  filter: grayscale(100%) opacity(0.6);
  transition: filter var(--transition);
}
.school-card:hover .school-logo { filter: none; }

.school-name { font-weight: 700; font-size: 16px; margin-bottom: 4px; }
.school-degree { font-size: 13px; color: var(--color-text-secondary); margin-bottom: 16px; }

.skill-groups {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}
.skill-group-label { font-size: 13px; font-weight: 600; color: var(--color-text-secondary); margin-bottom: 12px; }

@media (max-width: 860px) {
  .edu-row { grid-template-columns: 1fr; }
  .skill-groups { grid-template-columns: 1fr; }
}

/* ===== 实习经历 ===== */
.exp-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.exp-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 24px 28px;
  display: none;
}
.exp-card.visible { display: block; }

.exp-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}
.exp-logo-wrap { width: 48px; height: 48px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.exp-logo {
  max-width: 48px;
  max-height: 48px;
  filter: grayscale(100%) opacity(0.65);
  transition: filter var(--transition);
}
.exp-card:hover .exp-logo { filter: none; }

.exp-head-text { flex: 1; }
.exp-company { font-weight: 700; font-size: 15.5px; }
.exp-role { font-size: 13.5px; color: var(--color-text-secondary); }
.exp-time { font-size: 12.5px; color: var(--color-text-secondary); white-space: nowrap; }

.expand-btn {
  margin-top: 16px;
  font-family: var(--font-sans);
  font-size: 12.5px;
  color: var(--color-accent);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 4px;
}
.expand-btn .arrow { transition: transform var(--transition); font-size: 11px; }
.exp-card.expanded .expand-btn .arrow { transform: rotate(180deg); }

.exp-detail {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
  font-size: 13.5px;
  color: var(--color-text-secondary);
}
.exp-detail p { margin-top: 14px; }
.exp-detail strong { color: var(--color-text); }
.exp-card.expanded .exp-detail { max-height: 600px; }

/* ===== 边界之外 ===== */
.boundary-leadership {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}
.leadership-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
}
.leadership-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  object-position: top;
}
.leadership-text { padding: 20px 22px; }
.leadership-org { font-weight: 700; font-size: 14.5px; margin-bottom: 2px; }
.leadership-time { font-size: 12px; color: var(--color-text-secondary); margin-bottom: 10px; }
.leadership-text p { font-size: 13.5px; color: var(--color-text-secondary); }

.travel-gallery {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding-bottom: 12px;
  cursor: grab;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
}
.travel-gallery.dragging { cursor: grabbing; scroll-behavior: auto; }
.travel-item {
  position: relative;
  flex: 0 0 auto;
  width: 220px;
  height: 280px;
  border-radius: 14px;
  overflow: hidden;
  scroll-snap-align: start;
}
.travel-item img { width: 100%; height: 100%; object-fit: cover; user-select: none; -webkit-user-drag: none; }
.travel-label {
  position: absolute;
  bottom: 12px;
  left: 12px;
  font-size: 12.5px;
  color: #fff;
  background: rgba(0,0,0,0.45);
  padding: 4px 12px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}

.hobby-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.hobby-item { position: relative; border-radius: 14px; overflow: hidden; height: 240px; }
.hobby-item img { width: 100%; height: 100%; object-fit: cover; }
.hobby-label {
  position: absolute;
  bottom: 12px;
  left: 12px;
  font-size: 12.5px;
  color: #fff;
  background: rgba(0,0,0,0.45);
  padding: 4px 12px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}

@media (max-width: 860px) {
  .boundary-leadership { grid-template-columns: 1fr; }
  .hobby-row { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .hobby-row { grid-template-columns: 1fr; }
}

/* ===== 联系我 ===== */
.contact-grid {
  display: flex;
  gap: 32px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
}
.contact-item .icon { width: 18px; height: 18px; color: var(--color-accent); flex-shrink: 0; }

.job-status {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
  transition: opacity 0.3s ease;
}

/* ===== Footer ===== */
.footer {
  text-align: center;
  padding: 32px 24px;
  font-size: 12.5px;
  color: var(--color-text-secondary);
}