/* ==========================================================
  个人简历网站样式（科技感 + 可爱风）
  说明：
  - 本项目使用 Tailwind CDN，所以这里不要写 @apply（浏览器不会编译）。
  - 本文件仅负责：自定义组件类（nav-link/section-card 等）、动效、细节统一。
========================================================== */

:root {
  --bg: #121226;
  --primary: #7b61ff;
  --accent: #ff9ee7;
  --neon: #ffb6c1;
  --card: rgba(255, 255, 255, 0.08);
  --card-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.12);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.65);
}

html {
  scroll-behavior: smooth; /* 平滑滚动：基础体验（JS 会处理固定导航的偏移） */
}

/* 让 tsparticles 容器不挡交互 */
#particles-js {
  pointer-events: none;
}

/* 通用：区块卡片（玻璃拟态 + 统一圆角） */
.section-card {
  margin-top: 2.5rem;
  border-radius: 1.7rem;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 1.5rem;
  backdrop-filter: blur(22px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

@media (min-width: 768px) {
  .section-card {
    padding: 2rem;
  }
}

.section-header {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

@media (min-width: 768px) {
  .section-header {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
}

.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 1.125rem;
}

@media (min-width: 640px) {
  .section-title {
    font-size: 1.25rem;
  }
}

.section-index {
  display: inline-flex;
  width: 1.75rem;
  height: 1.75rem;
  align-items: center;
  justify-content: center;
  border-radius: 0.9rem;
  font-size: 0.75rem;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, rgba(123, 97, 255, 0.9), rgba(255, 158, 231, 0.8), rgba(255, 182, 193, 0.85));
  box-shadow: 0 0 30px rgba(255, 158, 231, 0.35);
}

.section-subtitle {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.875rem;
}

/* 导航链接：当前章节高亮 + 渐变下划线 */
.nav-link {
  position: relative;
  cursor: pointer;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.72);
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: #fff;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--neon));
  box-shadow: 0 0 12px rgba(123, 97, 255, 0.7);
  transition: width 0.25s ease-out;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link-active {
  color: #fff;
}

.nav-link-active::after {
  width: 100%;
}

.mobile-nav-link {
  border-radius: 0.75rem;
  padding: 0.55rem 0.75rem;
  color: rgba(255, 255, 255, 0.85);
  transition: background 0.2s ease, color 0.2s ease;
}

.mobile-nav-link:hover {
  background: rgba(123, 97, 255, 0.2);
  color: #fff;
}

/* 关于我：信息条 */
.info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 0.55rem 0.75rem;
}

.info-label {
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.75rem;
}

.info-value {
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.8rem;
  text-align: right;
}

/* 技能卡片 + 进度条 */
.skill-card {
  display: flex;
  gap: 0.75rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 1rem;
  backdrop-filter: blur(16px);
  box-shadow: 0 16px 45px rgba(0, 0, 0, 0.45);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.skill-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 20px 60px rgba(123, 97, 255, 0.35);
}

.skill-card-icon {
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  border-radius: 0.95rem;
  color: #fff;
  background: linear-gradient(135deg, rgba(123, 97, 255, 0.9), rgba(255, 158, 231, 0.75), rgba(255, 182, 193, 0.85));
  box-shadow: 0 0 30px rgba(123, 97, 255, 0.35);
}

.skill-card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}

.skill-card-percent {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--accent);
}

.skill-card-desc {
  margin-top: 0.15rem;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.7);
}

.skill-progress-track {
  margin-top: 0.6rem;
  width: 100%;
  height: 0.38rem;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.skill-progress-bar {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--neon));
}

/* 标签 chip */
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 0.35rem 0.75rem;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.88);
}

/* 项目卡片 */
.project-card {
  overflow: hidden;
  border-radius: 1.7rem;
  border: 1px solid var(--border);
  background: rgba(8, 8, 26, 0.85);
  backdrop-filter: blur(22px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.65);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
  transform: translateY(-5px) scale(1.01);
  box-shadow: 0 25px 80px rgba(123, 97, 255, 0.28);
}

.project-image-wrapper {
  position: relative;
  height: 170px;
  overflow: hidden;
}

@media (min-width: 768px) {
  .project-image-wrapper {
    height: 190px;
  }
}

.project-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-image-wrapper img {
  transform: scale(1.06);
}

.project-image-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top, rgba(123, 97, 255, 0.45), transparent 62%);
  mix-blend-mode: screen;
  opacity: 0.75;
}

.project-content {
  padding: 1.1rem;
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 0.75rem;
}

.project-title {
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--text);
}

.project-desc {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.72);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.72rem;
}

.project-tag {
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  padding: 0.15rem 0.65rem;
  color: rgba(255, 255, 255, 0.85);
}

.project-actions {
  margin-top: 0.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.project-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 999px;
  background: rgba(123, 97, 255, 0.95);
  padding: 0.45rem 1rem;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 800;
  box-shadow: 0 0 30px rgba(123, 97, 255, 0.35);
  transition: filter 0.2s ease, transform 0.2s ease;
}

.project-btn-primary:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.project-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.05);
  padding: 0.45rem 0.9rem;
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.75rem;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.project-btn-secondary:hover {
  border-color: rgba(255, 158, 231, 0.75);
  background: rgba(255, 158, 231, 0.1);
}

/* 时间轴 */
.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.timeline-item {
  position: relative;
  display: flex;
  gap: 1rem;
  transition: transform 0.2s ease;
}

.timeline-item:hover {
  transform: translateY(-3px);
}

.timeline-line {
  position: absolute;
  left: 11px;
  top: 20px;
  width: 1px;
  height: calc(100% - 10px);
  background: linear-gradient(180deg, rgba(123, 97, 255, 0.8), rgba(255, 158, 231, 0.65), rgba(255, 182, 193, 0.7));
}

.timeline-dot {
  position: relative;
  z-index: 1;
  margin-top: 0.25rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 999px;
  background: rgba(255, 158, 231, 0.95);
  box-shadow: 0 0 0 4px rgba(255, 158, 231, 0.22), 0 0 24px rgba(255, 158, 231, 0.8);
}

.timeline-content {
  margin-left: 1.5rem;
  flex: 1;
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: var(--card-2);
  padding: 1rem;
  color: rgba(255, 255, 255, 0.9);
}

.timeline-item:hover .timeline-content {
  border-color: rgba(255, 158, 231, 0.7);
  background: rgba(255, 255, 255, 0.09);
}

.timeline-item:hover .timeline-dot {
  box-shadow: 0 0 0 4px rgba(255, 182, 193, 0.3), 0 0 26px rgba(255, 158, 231, 0.9);
}

.timeline-header {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

@media (min-width: 640px) {
  .timeline-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.timeline-date {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--accent);
}

.timeline-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.98);
}

.timeline-subtitle {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.6);
}

.timeline-list {
  margin-top: 0.6rem;
  padding-left: 1.1rem;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.82rem;
}

.timeline-list li + li {
  margin-top: 0.35rem;
}

/* 联系方式行 + 复制按钮 */
.contact-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 0.65rem 0.75rem;
}

.contact-icon {
  width: 2.25rem;
  height: 2.25rem;
  display: grid;
  place-items: center;
  border-radius: 0.85rem;
  color: #fff;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.contact-icon:hover {
  transform: translateY(-1px) scale(1.03);
  box-shadow: 0 0 18px rgba(255, 158, 231, 0.7);
}

.contact-icon.email {
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

.contact-icon.wechat {
  background: linear-gradient(135deg, #00c853, #a5ffce);
}

.contact-icon.tiktok {
  background: radial-gradient(circle at 30% 0, var(--accent), #000);
}

.contact-icon.bilibili {
  background: linear-gradient(135deg, #00a1d6, var(--primary));
}

.contact-icon.xiaohongshu {
  background: linear-gradient(135deg, #ff6b81, var(--neon));
}

.contact-label {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.58);
}

.contact-value {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.92);
  text-decoration: none;
}

.contact-value:hover {
  color: var(--accent);
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  padding: 0.2rem 0.6rem;
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.9);
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.copy-btn:hover {
  border-color: rgba(255, 158, 231, 0.75);
  background: rgba(255, 158, 231, 0.12);
  transform: translateY(-1px);
}

.copy-btn.copied {
  border-color: rgba(255, 182, 193, 0.85);
  background: rgba(255, 182, 193, 0.16);
}

/* 表单输入 */
.form-field label {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.75);
}

.form-input {
  width: 100%;
  border-radius: 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.28);
  padding: 0.5rem 0.75rem;
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.85rem;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.form-input:focus {
  border-color: rgba(123, 97, 255, 0.7);
  box-shadow: 0 0 0 3px rgba(123, 97, 255, 0.25);
}

/* 首页淡入 */
@keyframes fadeInUpSoft {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUpSoft 0.8s ease-out both;
}