/* ============================================================
   LSPosod · 个人主页
   依赖 tokens.css 的 Material You 主题变量
   ============================================================ */

.personal-home {
  --ph-wrap: 1180px;
  overflow: hidden;
}

.ph-wrap {
  width: min(var(--ph-wrap), calc(100% - 40px));
  margin-inline: auto;
}

/* ---------- Hero ---------- */
.ph-hero {
  position: relative;
  padding: 84px 0 78px;
  isolation: isolate;
}

.ph-hero::before {
  content: "";
  position: absolute;
  inset: -180px -10% auto;
  height: 720px;
  z-index: -2;
  background:
    radial-gradient(60% 60% at 24% 35%, color-mix(in srgb, var(--md-primary) 30%, transparent), transparent 72%),
    radial-gradient(46% 52% at 82% 18%, color-mix(in srgb, var(--md-tertiary) 22%, transparent), transparent 72%);
  filter: blur(20px);
  pointer-events: none;
}

.ph-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(color-mix(in srgb, var(--md-outline-variant) 22%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--md-outline-variant) 22%, transparent) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(#000, transparent 72%);
  opacity: .35;
}

.ph-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
  gap: clamp(40px, 6vw, 88px);
  align-items: center;
}

.ph-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
  color: var(--md-on-surface-variant);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .16em;
}

.ph-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #28d17c;
  box-shadow: 0 0 0 5px color-mix(in srgb, #28d17c 16%, transparent);
}

.ph-title {
  margin: 0;
  font-size: clamp(3rem, 7vw, 5.1rem);
  line-height: .98;
  letter-spacing: -.055em;
  font-weight: 900;
  color: var(--md-on-background);
}

.ph-title span {
  display: inline-block;
  background: linear-gradient(115deg, var(--md-primary), color-mix(in srgb, var(--md-tertiary) 74%, #ff8fbd));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ph-lead {
  max-width: 620px;
  margin: 26px 0 0;
  color: var(--md-on-surface-variant);
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  line-height: 1.95;
}

.ph-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  margin-top: 30px;
}

.ph-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: var(--md-on-surface);
  font-size: .88rem;
  font-weight: 750;
  text-decoration: none;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}

.ph-btn:hover { text-decoration: none; transform: translateY(-2px); }
.ph-btn svg { width: 17px; height: 17px; fill: currentColor; }
.ph-btn.primary {
  color: var(--md-on-primary);
  background: linear-gradient(135deg, var(--md-primary), color-mix(in srgb, var(--md-primary) 62%, var(--md-tertiary)));
  box-shadow: 0 12px 30px color-mix(in srgb, var(--md-primary) 28%, transparent);
}
.ph-btn.secondary {
  color: var(--md-on-surface);
  background: var(--md-surface-container-low);
  border-color: var(--md-outline-variant);
}
.ph-btn.ghost {
  color: var(--md-on-surface-variant);
  border-color: transparent;
}
.ph-btn.ghost:hover { background: color-mix(in srgb, var(--md-on-surface) 7%, transparent); }

.ph-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 25px;
}
.ph-tags span {
  padding: 6px 11px;
  border-radius: 999px;
  color: var(--md-on-surface-variant);
  background: color-mix(in srgb, var(--md-surface-container-high) 72%, transparent);
  border: 1px solid color-mix(in srgb, var(--md-outline-variant) 52%, transparent);
  font-size: .7rem;
  font-weight: 650;
}

/* ---------- Portrait visual ---------- */
.ph-visual {
  position: relative;
  min-height: 430px;
  display: grid;
  place-items: center;
}

.ph-glow {
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--md-primary) 38%, transparent), transparent 68%);
  filter: blur(18px);
}

.ph-orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed color-mix(in srgb, var(--md-outline) 42%, transparent);
}
.orbit-a { width: 390px; height: 390px; animation: ph-spin 26s linear infinite; }
.orbit-b { width: 470px; height: 470px; animation: ph-spin 38s linear infinite reverse; opacity: .7; }

.ph-avatar-card {
  position: relative;
  z-index: 2;
  width: min(330px, 80%);
  padding: 27px 27px 22px;
  border-radius: 34px;
  background: linear-gradient(160deg, color-mix(in srgb, var(--md-surface-container-high) 92%, transparent), color-mix(in srgb, var(--md-surface) 88%, transparent));
  border: 1px solid color-mix(in srgb, var(--md-outline-variant) 58%, transparent);
  box-shadow: 0 28px 80px rgba(0, 0, 0, .26);
  backdrop-filter: blur(18px);
  text-align: center;
  transform: rotate(-3deg);
  transition: transform .3s ease;
}
.ph-avatar-card:hover { transform: rotate(0) translateY(-4px); }
.ph-avatar-card img {
  display: block;
  width: 178px;
  height: 178px;
  margin: 0 auto 18px;
  border-radius: 42px;
  object-fit: cover;
  box-shadow: 0 18px 40px color-mix(in srgb, var(--md-primary) 20%, transparent);
}
.ph-avatar-meta strong {
  display: block;
  color: var(--md-on-surface);
  font-size: 1.45rem;
  font-weight: 900;
  letter-spacing: -.03em;
}
.ph-avatar-meta span {
  display: block;
  margin-top: 5px;
  color: var(--md-on-surface-variant);
  font-size: .72rem;
  letter-spacing: .05em;
}

.ph-float {
  position: absolute;
  z-index: 3;
  padding: 8px 13px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--md-surface-container-high) 86%, transparent);
  border: 1px solid color-mix(in srgb, var(--md-outline-variant) 58%, transparent);
  color: var(--md-on-surface-variant);
  font-size: .7rem;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(0, 0, 0, .16);
  backdrop-filter: blur(12px);
}
.float-a { top: 18%; left: 0; transform: rotate(-5deg); }
.float-b { right: 0; top: 40%; transform: rotate(4deg); }
.float-c { bottom: 12%; left: 8%; transform: rotate(3deg); }

/* ---------- Sections ---------- */
.ph-section { padding: 28px 0 56px; }
.ph-section-head { margin-bottom: 22px; }
.ph-kicker {
  margin: 0 0 7px;
  color: var(--md-primary);
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .18em;
}
.ph-section h2 {
  margin: 0;
  color: var(--md-on-background);
  font-size: clamp(1.8rem, 3.6vw, 2.5rem);
  line-height: 1.15;
  font-weight: 900;
  letter-spacing: -.04em;
}
.ph-section-sub { margin: 8px 0 0; color: var(--md-on-surface-variant); font-size: .9rem; }

.ph-about-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 16px;
}

.ph-card {
  position: relative;
  padding: 28px;
  border-radius: 28px;
  background: color-mix(in srgb, var(--md-surface-container-low) 92%, transparent);
  border: 1px solid color-mix(in srgb, var(--md-outline-variant) 50%, transparent);
  box-shadow: 0 14px 40px rgba(0, 0, 0, .10);
  overflow: hidden;
}
.ph-card::after {
  content: "";
  position: absolute;
  right: -50px;
  top: -80px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--md-primary) 12%, transparent);
  pointer-events: none;
}
.ph-card-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 15px;
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  margin-bottom: 20px;
}
.ph-card-icon.accent {
  background: var(--md-tertiary-container);
  color: var(--md-on-tertiary-container);
}
.ph-card-icon svg { width: 23px; height: 23px; fill: currentColor; }
.ph-card h3 {
  margin: 0 0 12px;
  color: var(--md-on-surface);
  font-size: 1.22rem;
  font-weight: 850;
  letter-spacing: -.02em;
}
.ph-card p {
  margin: 0 0 12px;
  color: var(--md-on-surface-variant);
  font-size: .9rem;
  line-height: 1.9;
}
.ph-card p:last-child { margin-bottom: 0; }

.ph-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 13px; }
.ph-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--md-on-surface-variant);
  font-size: .88rem;
  line-height: 1.75;
}
.ph-list li span {
  flex: none;
  width: 6px;
  height: 6px;
  margin-top: .62em;
  border-radius: 50%;
  background: var(--md-primary);
}

/* ---------- Project cards ---------- */
.ph-project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 13px;
}
.ph-project-card {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 116px;
  padding: 20px;
  border-radius: 24px;
  background: color-mix(in srgb, var(--md-surface-container-low) 92%, transparent);
  border: 1px solid color-mix(in srgb, var(--md-outline-variant) 50%, transparent);
  color: var(--md-on-surface);
  text-decoration: none;
  box-shadow: 0 12px 34px rgba(0, 0, 0, .08);
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.ph-project-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--md-primary) 48%, transparent);
  text-decoration: none;
}
.ph-project-card.featured {
  background: linear-gradient(145deg, color-mix(in srgb, var(--md-primary-container) 52%, var(--md-surface-container-low)), var(--md-surface-container-low));
}
.ph-project-card.muted { opacity: .82; }
.ph-project-icon {
  display: grid;
  place-items: center;
  flex: none;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: color-mix(in srgb, var(--md-primary) 16%, transparent);
  color: var(--md-primary);
}
.ph-project-icon svg { width: 24px; height: 24px; fill: currentColor; }
.ph-project-body { min-width: 0; flex: 1; }
.ph-project-body strong {
  display: block;
  color: var(--md-on-surface);
  font-size: .98rem;
  font-weight: 800;
}
.ph-project-body span {
  display: block;
  margin-top: 4px;
  color: var(--md-on-surface-variant);
  font-size: .76rem;
  line-height: 1.55;
}
.ph-project-arrow { color: var(--md-primary); font-size: 1.1rem; font-weight: 800; }

/* ---------- Contact ---------- */
.ph-contact-section { padding-bottom: 82px; }
.ph-contact-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 34px;
  border-radius: 30px;
  background:
    radial-gradient(70% 160% at 90% 0%, color-mix(in srgb, var(--md-tertiary) 18%, transparent), transparent 65%),
    color-mix(in srgb, var(--md-surface-container-low) 94%, transparent);
  border: 1px solid color-mix(in srgb, var(--md-outline-variant) 50%, transparent);
}
.ph-contact-card h2 { font-size: 1.7rem; }
.ph-contact-card p {
  max-width: 620px;
  margin: 8px 0 0;
  color: var(--md-on-surface-variant);
  font-size: .9rem;
  line-height: 1.8;
}
.ph-contact-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.ph-contact-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--md-surface-container-high);
  border: 1px solid color-mix(in srgb, var(--md-outline-variant) 52%, transparent);
  color: var(--md-on-surface);
  font-size: .78rem;
  font-weight: 700;
  text-decoration: none;
}
.ph-contact-link:hover { text-decoration: none; border-color: var(--md-primary); }
.ph-contact-link span { color: var(--md-primary); }

@keyframes ph-spin { to { transform: rotate(360deg); } }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .ph-hero { padding-top: 56px; }
  .ph-hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .ph-visual { min-height: 390px; order: -1; }
  .ph-avatar-card { width: min(300px, 78%); }
  .orbit-a { width: 330px; height: 330px; }
  .orbit-b { width: 400px; height: 400px; }
  .ph-about-grid { grid-template-columns: 1fr; }
  .ph-project-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .ph-wrap { width: min(100% - 28px, var(--ph-wrap)); }
  .ph-hero { padding: 36px 0 46px; }
  .ph-title { font-size: clamp(2.8rem, 13vw, 4rem); }
  .ph-lead { font-size: .92rem; margin-top: 18px; }
  .ph-actions { gap: 8px; }
  .ph-btn { min-height: 44px; padding: 0 16px; font-size: .8rem; }
  .ph-visual { min-height: 330px; }
  .ph-avatar-card { width: 255px; padding: 20px; border-radius: 28px; }
  .ph-avatar-card img { width: 138px; height: 138px; border-radius: 32px; }
  .ph-float { font-size: .62rem; padding: 6px 10px; }
  .float-a { left: 2%; }
  .float-b { right: 2%; }
  .orbit-a { width: 275px; height: 275px; }
  .orbit-b { width: 330px; height: 330px; }
  .ph-card { padding: 21px; border-radius: 23px; }
  .ph-project-grid { grid-template-columns: 1fr; }
  .ph-project-card { min-height: 96px; padding: 16px; border-radius: 20px; }
  .ph-contact-card { flex-direction: column; align-items: flex-start; padding: 24px; border-radius: 24px; }
  .ph-section { padding-bottom: 38px; }
  .ph-contact-section { padding-bottom: 56px; }
}

@media (prefers-reduced-motion: reduce) {
  .orbit-a, .orbit-b { animation: none; }
  .ph-btn, .ph-avatar-card, .ph-project-card { transition: none; }
}