/* ============================================================
   个人网站样式表
   简约风 · 响应式 · 动效集中在滚动与悬停
   配色等变量在 :root 中统一调整
   ============================================================ */

/* ---------- 变量 ---------- */
:root {
  --bg: #f7f7f2;
  --bg-soft: #efefe9;
  --card: #ffffff;
  --text: #1f2933;
  --text-soft: #66707c;
  --border: #e3e3d9;
  --accent: #e23636;
  --accent-2: #2b5baa;
  --accent-rgb: 226, 54, 54;
  --accent-soft: rgba(var(--accent-rgb), 0.08);
  --shadow-sm: 0 2px 8px rgba(20, 20, 40, 0.05);
  --shadow-md: 0 12px 32px rgba(20, 20, 40, 0.09);
  --radius: 12px;
  --max-w: 1120px;
  --header-h: 68px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-bg: rgba(250, 250, 250, 0.82);
  --chip-bg: rgba(31, 41, 51, 0.06);
  --tag-bg: rgba(43, 91, 170, 0.07);
  --tag-bg-hover: rgba(43, 91, 170, 0.14);
  --track-bg: rgba(31, 41, 51, 0.08);
  --web: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='72'%3E%3Cg fill='none' stroke='%23e23636' stroke-opacity='0.05'%3E%3Cpath d='M36 0v72M0 36h72M10 10l52 52M62 10L10 62'/%3E%3Ccircle cx='36' cy='36' r='12'/%3E%3Ccircle cx='36' cy='36' r='24'/%3E%3C/g%3E%3C/svg%3E");
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* 深色模式（蜘蛛侠暗夜版） */
html[data-theme="dark"] {
  --bg: #14161a;
  --bg-soft: #1b1e23;
  --card: #1f2329;
  --text: #e8e6e0;
  --text-soft: #9aa0a8;
  --border: #2c3138;
  --accent: #e23636;
  --accent-2: #5b8def;
  --accent-soft: rgba(226, 54, 54, 0.12);
  --header-bg: rgba(20, 22, 26, 0.82);
  --chip-bg: rgba(255, 255, 255, 0.07);
  --tag-bg: rgba(91, 141, 239, 0.12);
  --tag-bg-hover: rgba(91, 141, 239, 0.22);
  --track-bg: rgba(255, 255, 255, 0.1);
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, p { margin: 0; }

::selection { background: rgba(var(--accent-rgb), 0.18); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 200;
  background: var(--accent);
  color: #fff;
  padding: 10px 18px;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

.container {
  width: min(var(--max-w), 92vw);
  margin-inline: auto;
}

/* 顶部阅读进度条 */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  z-index: 120;
  transition: width 0.1s linear;
}

/* ---------- 导航 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease),
    backdrop-filter 0.35s var(--ease);
}

.site-header.scrolled {
  background: var(--header-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--border), 0 8px 24px rgba(20, 20, 40, 0.04);
}

.nav-wrap {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.logo-dot { color: var(--accent); }

.site-nav ul { display: flex; gap: 8px; }

.nav-link {
  display: inline-block;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--text-soft);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.25s, background 0.25s;
}
.nav-link:hover { color: var(--text); }
.nav-link.active { color: var(--accent); background: var(--accent-soft); }

/* 汉堡按钮（移动端显示） */
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.35s var(--ease), opacity 0.25s;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 搜索按钮 */
.search-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all 0.3s var(--ease);
  flex-shrink: 0;
}
.search-btn svg { width: 18px; height: 18px; }
.search-btn:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-2px); }

/* 主题切换按钮 */
.theme-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-soft);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 17px;
  transition: all 0.3s var(--ease);
  flex-shrink: 0;
  margin-left: 10px;
}
.theme-btn:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-2px); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-size: 0.98rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    color 0.3s, background 0.3s, border-color 0.3s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 18px rgba(var(--accent-rgb), 0.28);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(var(--accent-rgb), 0.36);
}

.btn-ghost {
  background: var(--card);
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- 首屏 Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 0 96px;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--web);
  pointer-events: none;
  z-index: 0;
}

.hero-bg-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(42% 42% at 22% 28%, rgba(226, 54, 54, 0.12), transparent 70%),
    radial-gradient(38% 38% at 78% 68%, rgba(43, 91, 170, 0.12), transparent 70%);
  animation: glow-drift 14s ease-in-out infinite alternate;
}
@keyframes glow-drift {
  from { transform: translate3d(-2%, -1%, 0) scale(1); }
  to   { transform: translate3d(2%, 2%, 0) scale(1.08); }
}

#particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.55;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 820px;
  text-align: left;
}

.hero-greeting {
  color: var(--text-soft);
  font-size: 1.05rem;
  margin-bottom: 16px;
}

.hero-name {
  font-size: clamp(2.7rem, 6.5vw, 4.4rem);
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1.12;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 18px;
}

.hero-roles {
  font-size: clamp(1.05rem, 2.5vw, 1.3rem);
  color: var(--accent);
  font-weight: 600;
  min-height: 1.6em;
  margin-bottom: 30px;
}
.type-caret { animation: blink 1s steps(1) infinite; font-weight: 400; }
@keyframes blink { 50% { opacity: 0; } }

.hero-sub {
  color: var(--text-soft);
  max-width: 560px;
  margin: 0 0 14px;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: flex-start;
  flex-wrap: wrap;
}

.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  z-index: 2;
}
.mouse {
  display: block;
  width: 24px;
  height: 38px;
  border: 2px solid var(--text-soft);
  border-radius: 14px;
  position: relative;
  opacity: 0.7;
}
.wheel {
  position: absolute;
  left: 50%;
  top: 6px;
  width: 3px;
  height: 7px;
  margin-left: -1.5px;
  border-radius: 2px;
  background: var(--accent);
  animation: wheel 1.8s var(--ease) infinite;
}
@keyframes wheel {
  0%   { transform: translateY(0); opacity: 1; }
  70%  { transform: translateY(12px); opacity: 0; }
  100% { transform: translateY(12px); opacity: 0; }
}

/* ---------- 通用区块 ---------- */
.section { padding: clamp(64px, 8vw, 104px) 0; }
.section-alt {
  background: var(--bg-soft);
  position: relative;
}
.section-alt::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--web);
  pointer-events: none;
}
.section-alt .container { position: relative; z-index: 1; }

.section-head {
  text-align: left;
  margin-bottom: clamp(32px, 4vw, 48px);
}
.section-head h2 {
  font-size: clamp(1.55rem, 3vw, 1.95rem);
  font-weight: 700;
  letter-spacing: 0.02em;
}
.section-sub {
  margin-top: 8px;
  color: var(--text-soft);
  font-size: 0.95rem;
}

section[id] { scroll-margin-top: calc(var(--header-h) + 12px); }

/* ---------- 滚动显现 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  will-change: opacity, transform;
}
.reveal.visible { opacity: 1; transform: none; }

/* ---------- 关于我 ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: clamp(36px, 6vw, 80px);
  align-items: center;
}

.about-avatar { display: flex; justify-content: center; }

.avatar-wrap {
  width: 250px;
  height: 250px;
  border-radius: 50%;
  padding: 9px;
  background: conic-gradient(from 0deg, var(--accent), var(--accent-2), var(--accent));
  box-shadow: 0 18px 42px rgba(var(--accent-rgb), 0.22);
}

.avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 4px solid var(--card);
  position: relative;
  overflow: hidden;
}
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: relative;
}
.avatar::after {
  content: "";
  position: absolute;
  inset: -30%;
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.28) 48%, transparent 62%);
  animation: shimmer 3.5s ease-in-out infinite;
}
@keyframes shimmer {
  0%, 100% { transform: translateX(-30%); }
  50%      { transform: translateX(30%); }
}

.about-text { max-width: 560px; }

.about-text p {
  margin-bottom: 18px;
  color: var(--text);
  line-height: 2;
}
.about-text p:first-child {
  font-size: 1.08rem;
}
.about-text strong { color: var(--accent); }

.about-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-top: 32px;
}
.stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 10px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease),
    border-color 0.3s;
}
.stat:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(var(--accent-rgb), 0.3);
}
.stat-num {
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--accent);
  display: block;
}
.stat-label {
  color: var(--text-soft);
  font-size: 0.85rem;
  display: block;
  margin-top: 2px;
}

/* ---------- 技能 ---------- */
.skills-wrap {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(32px, 6vw, 72px);
  align-items: start;
}

.skill-row { margin-bottom: 24px; }
.skill-meta {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-weight: 600;
}
.skill-percent {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.skill-track {
  height: 6px;
  border-radius: 999px;
  background: var(--track-bg);
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 1.2s var(--ease);
}

.skill-tags h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.tags { display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  background: var(--tag-bg);
  border: none;
  color: var(--text);
  transition: all 0.3s var(--ease);
  cursor: default;
}
.tag:hover {
  background: var(--tag-bg-hover);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ---------- 我的经历（时间线） ---------- */
.timeline {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
  padding-left: 30px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  opacity: 0.35;
}
.timeline-item {
  position: relative;
  padding: 0 0 38px 26px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--card);
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}
.timeline-period {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
}
.timeline-item h3 {
  font-size: 1.08rem;
  margin: 5px 0 6px;
  line-height: 1.5;
}
.timeline-item p {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.93rem;
}

/* ---------- 兴趣爱好 ---------- */
.interests-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
.interest-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease),
    border-color 0.3s;
}
.interest-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(var(--accent-rgb), 0.3);
}
.interest-icon {
  display: block;
  font-size: 2.1rem;
  line-height: 1;
  margin-bottom: 12px;
}
.interest-name {
  font-weight: 700;
  margin-bottom: 4px;
}
.interest-desc {
  font-size: 0.85rem;
  color: var(--text-soft);
}

/* ---------- 个人荣誉 ---------- */
.honors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.honor-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease),
    border-color 0.3s;
}
.honor-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: rgba(var(--accent-rgb), 0.3);
}
.honor-icon {
  font-size: 1.8rem;
  line-height: 1;
  display: block;
  margin-bottom: 12px;
}
.honor-date {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.honor-card h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
  line-height: 1.5;
}
.honor-card p {
  color: var(--text-soft);
  font-size: 0.9rem;
  margin: 0;
}

/* ---------- 生活瞬间（相册） ---------- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.gallery-item {
  aspect-ratio: 1;
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  background: linear-gradient(135deg, var(--bg-soft), var(--border));
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-sm);
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s var(--ease);
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-ph {
  text-align: center;
  color: var(--text-soft);
}
.gallery-ph .ph-icon {
  display: block;
  font-size: 2.2rem;
  margin-bottom: 8px;
}
.gallery-ph .ph-text { font-size: 0.84rem; }

/* ---------- 作品 ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease),
    border-color 0.3s;
}
.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
  border-color: rgba(var(--accent-rgb), 0.3);
}

.project-thumb {
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  font-size: 2.6rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.92);
  position: relative;
  overflow: hidden;
}
.cat-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 1;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  box-shadow: 0 2px 8px rgba(20, 20, 40, 0.12);
}
.thumb-1 { background: linear-gradient(135deg, #e23636, #9e1515); }
.thumb-2 { background: linear-gradient(135deg, #2b5baa, #12305e); }
.thumb-3 { background: linear-gradient(135deg, #d6212b, #2b5baa); }
.thumb-4 { background: linear-gradient(135deg, #2b5baa, #d6212b); }
.project-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 100% at 80% 0%, rgba(255, 255, 255, 0.25), transparent 55%);
}
.project-thumb .thumb-num { transition: transform 0.45s var(--ease); }
.project-card:hover .project-thumb .thumb-num { transform: scale(1.14); }
.work-card.work-hidden { display: none; }

/* ---------- 作品分类标签栏 ---------- */
.works-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}
.filter-tab {
  padding: 7px 18px;
  border-radius: 999px;
  border: none;
  background: var(--chip-bg);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.3s var(--ease), color 0.3s var(--ease),
    transform 0.3s var(--ease);
}
.filter-tab:hover { transform: translateY(-2px); }
.filter-tab.active { background: var(--accent); color: #fff; }

.project-body { padding: 20px 22px 22px; }
.project-body h3 {
  font-size: 1.12rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.project-body p {
  color: var(--text-soft);
  font-size: 0.94rem;
  margin-bottom: 14px;
}
.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}
.project-tags span {
  font-size: 0.78rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.project-links { display: flex; gap: 16px; }
.work-media {
  width: 100%;
  border-radius: 10px;
  margin-bottom: 14px;
  display: block;
  background: #000;
}

.link {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--accent);
  position: relative;
}
.link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 2px;
  width: 0;
  background: var(--accent);
  transition: width 0.3s var(--ease);
}
.link:hover::after { width: 100%; }

/* ---------- 文章 ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.blog-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease);
}
.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.82rem;
  color: var(--text-soft);
}
.chip {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 999px;
}
.blog-card h3 {
  font-size: 1.08rem;
  line-height: 1.5;
  margin-bottom: 8px;
}
.blog-card p {
  color: var(--text-soft);
  font-size: 0.93rem;
  flex: 1;
  margin-bottom: 14px;
}

/* ---------- 联系 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
}
.contact-intro p {
  font-size: 1.15rem;
  color: var(--text);
  max-width: 40ch;
}

.contact-cards { display: grid; gap: 16px; }
.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease),
    border-color 0.3s;
}
.contact-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(var(--accent-rgb), 0.35);
}
.contact-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.contact-icon svg { width: 20px; height: 20px; }
.contact-label {
  font-size: 0.85rem;
  color: var(--text-soft);
  display: block;
}
.contact-value { font-weight: 600; }

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  background: var(--bg);
}
.footer-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--text-soft);
  font-size: 0.9rem;
  text-align: center;
}

.to-top {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: all 0.35s var(--ease);
}
.to-top.show {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.to-top:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ---------- 站内搜索弹窗 ---------- */
.search-modal {
  position: fixed;
  inset: 0;
  background: rgba(20, 20, 30, 0.45);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 12vh 20px 0;
  z-index: 200;
}
.search-modal.open { display: flex; }
.search-box {
  width: min(640px, 100%);
  background: var(--card);
  border-radius: 14px;
  box-shadow: 0 24px 64px rgba(20, 20, 40, 0.28);
  overflow: hidden;
}
.search-input-wrap { display: flex; border-bottom: 1px solid var(--border); }
#searchInput {
  flex: 1;
  border: none;
  outline: none;
  padding: 16px 18px;
  font-size: 1rem;
  font-family: inherit;
  background: transparent;
  color: var(--text);
}
.search-close {
  border: none;
  background: none;
  font-size: 1.5rem;
  line-height: 1;
  padding: 0 20px;
  cursor: pointer;
  color: var(--text-soft);
}
.search-close:hover { color: var(--accent); }
.search-results { max-height: 50vh; overflow: auto; padding: 8px; }
.search-item {
  display: block;
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--text);
}
.search-item:hover { background: var(--accent-soft); }
.search-item .si-cat {
  font-size: 0.72rem;
  color: var(--accent);
  font-weight: 700;
  margin-right: 8px;
}
.search-item .si-title { font-weight: 600; }
.search-item .si-desc { font-size: 0.85rem; color: var(--text-soft); margin-top: 2px; }
.search-empty { padding: 22px; text-align: center; color: var(--text-soft); font-size: 0.9rem; }
.search-hint {
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-soft);
}

/* ---------- 留言板 ---------- */
.guestbook-wrap { min-height: 240px; }
.guestbook-note { color: var(--text-soft); font-size: 0.9rem; margin-bottom: 18px; }

/* ---------- 访客统计 ---------- */
.site-stats { margin: 0; }

/* ---------- 图片灯箱 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 12, 16, 0.9);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 300;
  padding: 40px;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: min(1100px, 92vw);
  max-height: 88vh;
  border-radius: 10px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
}
.lightbox-close {
  position: absolute;
  top: 18px;
  right: 22px;
  border: none;
  background: none;
  color: #fff;
  font-size: 2.2rem;
  line-height: 1;
  cursor: pointer;
}
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 1.8rem;
  cursor: pointer;
  display: grid;
  place-items: center;
}
.lightbox-nav:hover { background: rgba(226, 54, 54, 0.8); }
.lightbox-nav.prev { left: 20px; }
.lightbox-nav.next { right: 20px; }

/* ---------- 点击蛛丝特效 ---------- */
#webFx {
  position: fixed;
  inset: 0;
  z-index: 400;
  pointer-events: none;
}

/* 连点彩蛋：蜘蛛侠贴纸 */
.spidey-egg {
  position: fixed;
  z-index: 500;
  pointer-events: none;
  animation: egg-life 2.6s ease forwards;
  filter: drop-shadow(0 14px 28px rgba(20, 20, 40, 0.35));
}
.spidey-egg svg {
  display: block;
  animation: egg-spin 6s linear infinite;
}
.spidey-egg .egg-text {
  display: block;
  text-align: center;
  font-size: 2rem;
  font-weight: 900;
  font-style: italic;
  color: #fff;
  -webkit-text-stroke: 2px #1f2933;
  text-shadow: 2px 3px 0 rgba(31, 41, 51, 0.35);
  transform: rotate(-8deg);
  margin-top: -14px;
}
@keyframes egg-life {
  0% { transform: scale(0) rotate(-30deg); opacity: 0; }
  8% { opacity: 1; }
  22% { transform: scale(1.18) rotate(6deg); }
  32% { transform: scale(1) rotate(0); opacity: 1; }
  85% { opacity: 1; }
  100% { transform: scale(1.08) translateY(-18px); opacity: 0; }
}
@keyframes egg-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ---------- 吉祥物小蛛 ---------- */
.mascot {
  position: fixed;
  right: 24px;
  bottom: 92px;
  z-index: 250;
  border: none;
  background: none;
  cursor: grab;
  padding: 0;
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  animation: mascot-bob 3.2s ease-in-out infinite;
}
.mascot.dragging {
  animation: none;
  cursor: grabbing;
}
@keyframes mascot-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}
.mascot.talking { animation-duration: 0.6s; }
.mascot svg {
  filter: drop-shadow(0 6px 14px rgba(20, 20, 40, 0.25));
  transition: transform 0.25s var(--ease);
}
.mascot:hover svg { transform: scale(1.08) rotate(-3deg); }
.mascot-bubble {
  position: absolute;
  bottom: calc(100% + 8px);
  right: 0;
  width: max-content;
  max-width: 220px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px 12px;
  font-size: 0.85rem;
  color: var(--text);
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.mascot-bubble.show { opacity: 1; transform: none; }
.mascot-bubble::after {
  content: "";
  position: absolute;
  top: 100%;
  right: 18px;
  border: 6px solid transparent;
  border-top-color: var(--card);
}

/* 聊天面板 */
.chat-panel {
  position: fixed;
  right: 24px;
  bottom: 170px;
  width: min(340px, calc(100vw - 32px));
  height: 460px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 24px 64px rgba(20, 20, 40, 0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 260;
  opacity: 0;
  transform: translateY(12px) scale(0.98);
  pointer-events: none;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.chat-panel.open { opacity: 1; transform: none; pointer-events: auto; }
.chat-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #fff;
}
.chat-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  display: grid;
  place-items: center;
  font-size: 18px;
}
.chat-head strong { font-size: 0.95rem; }
.chat-status { font-size: 0.72rem; opacity: 0.85; }
.chat-close {
  margin-left: auto;
  border: none;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-size: 1rem;
  cursor: pointer;
}
.chat-msgs {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.chat-msg {
  max-width: 82%;
  padding: 9px 12px;
  border-radius: 14px;
  font-size: 0.9rem;
  line-height: 1.55;
  word-break: break-word;
}
.chat-msg.user {
  align-self: flex-end;
  background: var(--accent);
  color: #fff;
  border-bottom-right-radius: 4px;
}
.chat-msg.bot {
  align-self: flex-start;
  background: var(--bg-soft);
  color: var(--text);
  border-bottom-left-radius: 4px;
}
.chat-msg.bot.typing { display: flex; gap: 4px; padding: 12px 14px; }
.chat-msg.bot.typing span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-soft);
  animation: typing-dot 1s infinite;
}
.chat-msg.bot.typing span:nth-child(2) { animation-delay: 0.15s; }
.chat-msg.bot.typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes typing-dot {
  0%, 60%, 100% { opacity: 0.35; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-3px); }
}
.chat-input-wrap {
  display: flex;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid var(--border);
}
#chatInput {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 9px 14px;
  font-size: 0.9rem;
  font-family: inherit;
  background: var(--bg);
  color: var(--text);
  outline: none;
}
#chatInput:focus { border-color: var(--accent); }
#chatSend {
  border: none;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  padding: 9px 18px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
@media (max-width: 600px) {
  .chat-panel { right: 16px; bottom: 150px; }
  .mascot { right: 16px; }
}

/* ---------- 文章页 ---------- */
.article-page {
  max-width: 780px;
  margin: 0 auto;
  padding: 110px 24px 80px;
}
.article-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 44px 48px;
  box-shadow: var(--shadow-sm);
}
.article-meta {
  color: var(--text-soft);
  font-size: 0.9rem;
  margin-bottom: 10px;
}
.article-card h1 {
  font-size: clamp(1.7rem, 4vw, 2.3rem);
  line-height: 1.35;
  margin-bottom: 8px;
}
.article-content {
  margin-top: 28px;
  line-height: 1.9;
  font-size: 1rem;
  color: var(--text);
}
.article-content h2 { margin: 34px 0 12px; font-size: 1.35rem; }
.article-content h3 { margin: 26px 0 10px; font-size: 1.15rem; }
.article-content p { margin: 0 0 16px; }
.article-content ul, .article-content ol { margin: 0 0 16px; padding-left: 24px; }
.article-content li { margin-bottom: 6px; }
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  margin: 0 0 16px;
  padding: 10px 16px;
  border-radius: 8px;
  color: var(--text-soft);
}
.article-content code {
  background: var(--chip-bg);
  padding: 2px 6px;
  border-radius: 5px;
  font-size: 0.9em;
}
.article-content pre {
  background: #1f2933;
  color: #e8e6e0;
  padding: 16px 18px;
  border-radius: 10px;
  overflow-x: auto;
  margin: 0 0 16px;
}
.article-content pre code { background: none; padding: 0; }
.article-content a { color: var(--accent); }
@media (max-width: 600px) {
  .article-card { padding: 28px 22px; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 860px) {
  .about-grid,
  .skills-wrap,
  .contact-grid { grid-template-columns: 1fr; }

  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .interests-grid { grid-template-columns: repeat(3, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }

  .about-avatar { order: -1; }

  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 8px 4vw 18px;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  }
  .site-nav.open {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }
  .site-nav ul { flex-direction: column; gap: 2px; }
  .nav-link { display: block; padding: 12px 16px; }
}

@media (max-width: 560px) {
  .hero-actions .btn { width: 100%; }
  .avatar-wrap { width: 200px; height: 200px; }
  .projects-grid { grid-template-columns: 1fr; }
  .interests-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: 1fr; }
}

/* ---------- 尊重减少动效的系统设置 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- 加载动画 ---------- */
.site-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  background: var(--bg);
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.site-loader.done { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-web { width: 130px; height: 130px; animation: loader-spin 7s linear infinite; }
@keyframes loader-spin { to { transform: rotate(360deg); } }
.loader-spider {
  position: absolute;
  font-size: 30px;
  margin-top: -78px;
  transform-origin: 50% -130px;
  animation: loader-swing 1.2s ease-in-out infinite;
}
@keyframes loader-swing {
  0%, 100% { transform: rotate(-15deg); }
  50% { transform: rotate(15deg); }
}
.loader-text { color: var(--text-soft); font-size: 13px; letter-spacing: 2px; }

/* ---------- 深夜彩蛋：小蛛眼睛发光 ---------- */
body.night .mascot svg {
  filter: drop-shadow(0 0 9px rgba(226, 54, 54, 0.85)) drop-shadow(0 6px 14px rgba(20, 20, 40, 0.25));
}
body.night .mascot-bubble.show { border-color: rgba(226, 54, 54, 0.55); }
body.night .to-top { box-shadow: 0 0 14px rgba(226, 54, 54, 0.55); }

/* ---------- 聊天语音按钮 ---------- */
.chat-voice {
  margin-left: auto;
  margin-right: 6px;
  border: none;
  background: none;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 8px;
  transition: background 0.2s ease, transform 0.2s ease;
}
.chat-voice:hover { background: rgba(31, 41, 51, 0.08); transform: scale(1.1); }

/* ---------- Mascot chat extras: clear, quick questions, system note ---------- */
.chat-clear {
  border: none;
  background: none;
  color: var(--text-soft, #7b8794);
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 8px;
  transition: background 0.2s ease, color 0.2s ease;
}
.chat-clear:hover { background: rgba(31, 41, 51, 0.08); color: #e23636; }
.chat-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 8px 12px 2px;
}
.chat-quick button {
  border: 1px solid rgba(31, 41, 51, 0.18);
  background: rgba(255, 255, 255, 0.7);
  color: var(--text, #1f2933);
  font-size: 12px;
  line-height: 1;
  padding: 6px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.chat-quick button:hover { background: #eef2ff; border-color: #6366f1; }
.chat-msg.system {
  font-size: 12px;
  color: var(--text-soft, #7b8794);
  font-style: italic;
  text-align: center;
  padding: 4px 10px;
}
/* ---------- Mascot chat: copy button ---------- */
.chat-copy {
  display: block;
  margin-top: 6px;
  border: 1px solid rgba(31, 41, 51, 0.18);
  background: rgba(255, 255, 255, 0.6);
  color: var(--text-soft, #7b8794);
  font-size: 11px;
  line-height: 1;
  padding: 4px 8px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}
.chat-copy:hover { background: #eef2ff; color: #6366f1; }

/* ---------- Skills section: tools only (no percentage bars) ---------- */
.skills-wrap-single { grid-template-columns: 1fr; }