/* ============================================
   首屏人物形象 · hero portrait
   独立模块，追加在 style.css 之后
   双栏布局：文案在左，人像在右
   四主题兼容，浅色下融合方式不同
   ============================================ */

/* ---- 双栏骨架 ---- */
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  align-items: center;
  gap: clamp(1.5rem, 4vw, 4rem);
  width: 100%;
}

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

/* ---- 人像容器 ---- */
.hero-portrait {
  position: relative;
  justify-self: center;
  align-self: center;
  margin-top: 2.5rem;
  width: min(100%, 360px);
  display: grid;
  place-items: end center;
  isolation: isolate;
}
.hero-portrait > * { grid-area: 1 / 1; }

/* 背后的光晕：跟随主题色 */
.portrait-blob {
  position: absolute;
  z-index: -2;
  left: 50%;
  bottom: 6%;
  transform: translateX(-50%);
  width: 108%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 38% 32%, rgba(var(--accent-rgb), 0.34), transparent 62%),
    radial-gradient(circle at 68% 70%, rgba(var(--second-rgb), 0.24), transparent 60%);
  filter: blur(46px);
  animation: blobPulse 14s ease-in-out infinite;
}

@keyframes blobPulse {
  0%, 100% { transform: translateX(-50%) scale(1);     opacity: 0.9; }
  50%      { transform: translateX(-50%) scale(1.07);  opacity: 1; }
}

/* 细描边圆环：缓慢自转的虚线 */
.portrait-ring {
  position: absolute;
  z-index: -1;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 96%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: 1px dashed rgba(var(--accent-rgb), 0.3);
  pointer-events: none;
  animation: ringSpin 90s linear infinite;
}

.portrait-ring::after {
  content: '';
  position: absolute;
  inset: 7%;
  border-radius: 50%;
  border: 1px solid rgba(var(--fg-rgb), 0.07);
}

@keyframes ringSpin { to { transform: translate(-50%, -50%) rotate(360deg); } }

/* ---- 人像本体 ---- */
.hero-portrait .portrait-img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: auto;
  max-height: min(72vh, 680px);
  object-fit: contain;
  object-position: bottom center;
  /* 底部渐隐，消除「剪贴画贴上去」的硬边 */
  -webkit-mask-image: linear-gradient(180deg, #000 70%, rgba(0, 0, 0, 0.6) 86%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 70%, rgba(0, 0, 0, 0.6) 86%, transparent 100%);
  filter: drop-shadow(0 20px 34px rgba(var(--shadow-rgb), 0.34));
  transition: transform 0.7s var(--ease-out), filter 0.7s var(--ease-out);
}

.hero-portrait:hover .portrait-img {
  transform: translateY(-6px) scale(1.015);
  filter: drop-shadow(0 28px 46px rgba(var(--shadow-rgb), 0.42));
}

/* ---- 脚下小标签 ---- */
.portrait-caption {
  position: absolute;
  z-index: 3;
  left: 50%;
  bottom: 0.75rem;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 0.4375rem;
  padding: 0.375rem 0.8125rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(var(--bg-rgb), 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
  white-space: nowrap;
  opacity: 0;
  animation: capIn 0.7s var(--ease-out) 1.35s forwards;
}

@keyframes capIn {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* 呼吸的绿点 */
.pc-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--second);
  box-shadow: 0 0 0 0 rgba(var(--second-rgb), 0.6);
  animation: dotPing 2.4s ease-out infinite;
  flex: none;
}

@keyframes dotPing {
  0%   { box-shadow: 0 0 0 0 rgba(var(--second-rgb), 0.55); }
  70%  { box-shadow: 0 0 0 7px rgba(var(--second-rgb), 0); }
  100% { box-shadow: 0 0 0 0 rgba(var(--second-rgb), 0); }
}

/* ---- 浅色主题：阴影与光晕调轻 ---- */
[data-palette="frost"] .portrait-blob,
[data-palette="mist"] .portrait-blob {
  filter: blur(52px);
  background:
    radial-gradient(circle at 38% 32%, rgba(var(--accent-rgb), 0.2), transparent 64%),
    radial-gradient(circle at 68% 70%, rgba(var(--second-rgb), 0.14), transparent 62%);
}

[data-palette="frost"] .hero-portrait img,
[data-palette="mist"] .hero-portrait .portrait-img {
  filter: drop-shadow(0 18px 30px rgba(var(--shadow-rgb), 0.18));
}

[data-palette="frost"] .portrait-caption,
[data-palette="mist"] .portrait-caption {
  background: rgba(255, 255, 255, 0.74);
}

/* ---- 响应式：窄屏改单列，人像缩小置顶 ---- */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 2.25rem;
    justify-items: center;
    text-align: center;
  }
  .hero-body { text-align: center; }
  .hero-cta, .hero-meta { justify-content: center; }
  .hero-portrait {
    order: -1;
    width: min(70%, 300px);
    align-self: center;
  }
  .hero-portrait .portrait-img { max-height: 38vh; }
}

@media (max-width: 480px) {
  .hero-portrait { width: min(62%, 230px); }
  .portrait-caption { font-size: 0.625rem; padding: 0.3rem 0.65rem; }
}

/* ---- 入场：从右下浮入 ---- */
.hero-portrait.reveal:not(.visible) { transform: translateY(26px) scale(0.97); }

/* ---- reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  .portrait-blob, .portrait-ring, .pc-dot { animation: none; }
  .portrait-caption { animation: none; opacity: 1; }
  .hero-portrait .portrait-img { transition: none; }
  .hero-portrait:hover .portrait-img { transform: none; }
}

/* ---- 深浅主题各用一张穿搭：深色主题黑风衣，浅色主题米白大衣 ----
   选择器权重必须压过上面的 .hero-portrait .portrait-img { display:block } */
.hero-portrait .portrait-img-light { display: none; }
[data-palette="frost"] .hero-portrait .portrait-img-dark,
[data-palette="mist"]  .hero-portrait .portrait-img-dark  { display: none; }
[data-palette="frost"] .hero-portrait .portrait-img-light,
[data-palette="mist"]  .hero-portrait .portrait-img-light { display: block; }