/* ============================================================
   小徐 · 电竞风个人简历站  style.css
   设计思路：小米/华为官网的"克制配色 + 清晰层级 + 微交互"
             融合暗黑电竞风（霓虹渐变 / 故障字效 / 粒子 / 流光边框）
   ============================================================ */

/* ---------- 0. 本地字体（Orbitron / Rajdhani，woff2 已下载至 fonts/） ---------- */
@import url("fonts.css");

/* ---------- 1. 设计令牌（CSS Variables） ---------- */
:root {
  /* 三级暗色底 */
  --bg-0: #05070d;
  --bg-1: #0a0f1c;
  --bg-2: #0f1626;
  --bg-card: rgba(15, 22, 38, 0.82);

  /* 霓虹三色 */
  --neon-cyan: #00e5ff;
  --neon-purple: #7c4dff;
  --neon-magenta: #ff2ec4;

  /* 文字层级 */
  --text-1: #eaf2ff;
  --text-2: #9aa7c7;
  --text-3: #5d6b8c;

  --line: rgba(0, 229, 255, 0.16);
  --line-soft: rgba(154, 167, 199, 0.14);

  --grad-neon: linear-gradient(135deg, #00e5ff 0%, #7c4dff 50%, #ff2ec4 100%);
  --grad-text: linear-gradient(92deg, #00e5ff 0%, #8ea2ff 45%, #ff2ec4 100%);
  --grad-cyan: linear-gradient(135deg, #00e5ff, #0088ff);

  --radius: 14px;
  --radius-lg: 20px;

  --font-tech: "Orbitron", "Rajdhani", "Microsoft YaHei", "PingFang SC", sans-serif;
  --font-body: "Rajdhani", "Microsoft YaHei", "PingFang SC", sans-serif;

  --nav-h: 64px;
  --shadow-neon: 0 0 24px rgba(0, 229, 255, 0.28);
  --shadow-card: 0 18px 48px rgba(0, 0, 0, 0.5);
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 2. Reset 与基础 ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}

body {
  font-family: var(--font-body);
  background: var(--bg-0);
  color: var(--text-1);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: inherit; }

::selection { background: rgba(0, 229, 255, 0.35); color: #fff; }

/* 滚动条电竞化 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, #0e3a4a, #1b2a55);
  border-radius: 6px;
  border: 2px solid var(--bg-0);
}
::-webkit-scrollbar-thumb:hover { background: linear-gradient(180deg, #00e5ff, #7c4dff); }

.container { width: min(1180px, 92%); margin: 0 auto; }

/* ---------- 3. 全局装饰：网格 + 光晕 ---------- */
.bg-grid {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 40%, transparent 100%);
}
.bg-glow { position: fixed; z-index: -3; border-radius: 50%; filter: blur(120px); pointer-events: none; opacity: 0.5; }
.bg-glow-1 { width: 560px; height: 560px; left: -180px; top: -160px; background: rgba(0, 229, 255, 0.16); }
.bg-glow-2 { width: 640px; height: 640px; right: -220px; top: 30vh; background: rgba(124, 77, 255, 0.16); }

/* ---------- 4. 顶部导航（小米式极简吸顶） ---------- */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  transition: background 0.35s, box-shadow 0.35s, backdrop-filter 0.35s;
}
.site-nav.scrolled {
  background: rgba(5, 7, 13, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--line-soft), 0 12px 32px rgba(0, 0, 0, 0.45);
}
.nav-inner { height: var(--nav-h); display: flex; align-items: center; gap: 28px; }

.logo {
  font-family: var(--font-tech); font-weight: 900; font-size: 20px;
  letter-spacing: 1px; display: inline-flex; align-items: baseline; gap: 4px;
}
.logo-bolt { color: var(--neon-cyan); text-shadow: var(--shadow-neon); font-size: 16px; }
.logo em {
  font-style: normal; font-size: 10px; letter-spacing: 4px;
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent; margin-left: 2px;
}

.nav-links { display: flex; gap: 6px; margin-left: auto; }
.nav-links a {
  position: relative; padding: 8px 14px; font-size: 15px; font-weight: 600;
  color: var(--text-2); letter-spacing: 1px; border-radius: 8px;
  transition: color 0.25s, background 0.25s;
}
.nav-links a:hover { color: var(--text-1); background: rgba(0, 229, 255, 0.08); }
.nav-links a.active { color: var(--neon-cyan); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 2px;
  background: var(--grad-cyan); border-radius: 2px; box-shadow: var(--shadow-neon);
}

.nav-right { display: flex; align-items: center; gap: 12px; }

/* 汉堡按钮（移动端） */
.burger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.burger span {
  width: 22px; height: 2px; background: var(--text-1); border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 12px 26px; border-radius: 10px;
  font-family: var(--font-body); font-weight: 700; font-size: 15px; letter-spacing: 1.5px;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s, filter 0.25s;
  will-change: transform;
}
.btn:active { transform: scale(0.97); }

.btn-neon {
  color: #04121a; background: var(--grad-cyan);
  box-shadow: 0 6px 22px rgba(0, 229, 255, 0.35);
}
.btn-neon:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0, 229, 255, 0.5); filter: brightness(1.08); }

.btn-ghost {
  color: var(--text-1); background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--neon-cyan); box-shadow: var(--shadow-neon); }

.btn-sm { padding: 8px 18px; font-size: 13px; border-radius: 8px; }
.btn-lg { padding: 16px 40px; font-size: 17px; border-radius: 12px; }
.btn[disabled] { opacity: 0.55; pointer-events: none; }

/* ---------- 6. Hero 首屏 ---------- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center;
  padding: calc(var(--nav-h) + 40px) 0 80px;
  overflow: hidden;
}
#particles { position: absolute; inset: 0; z-index: 1; pointer-events: none; }

.slide { position: relative; z-index: 2; width: 100%; }
/* Hero 首屏背景：纯 CSS 渐变 + 霓虹光晕 + 网格，不依赖任何图片 */
.slide-bg {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(ellipse 70% 55% at 18% 30%, rgba(0, 229, 255, 0.18), transparent 60%),
    radial-gradient(ellipse 60% 50% at 82% 70%, rgba(124, 77, 255, 0.20), transparent 60%),
    radial-gradient(ellipse 50% 45% at 65% 18%, rgba(255, 46, 196, 0.12), transparent 60%),
    linear-gradient(135deg, #05070d 0%, #0a0f1c 45%, #0f1626 100%);
  background-size: cover; background-position: center;
}
/* 电路走线纹理：用多层 linear-gradient 模拟电路板走线 */
.slide-bg::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, transparent 49.6%, rgba(0, 229, 255, 0.18) 49.8%, rgba(0, 229, 255, 0.18) 50.2%, transparent 50.4%) 0 0/120px 120px,
    linear-gradient(0deg, transparent 49.6%, rgba(124, 77, 255, 0.14) 49.8%, rgba(124, 77, 255, 0.14) 50.2%, transparent 50.4%) 0 0/160px 160px,
    linear-gradient(90deg, transparent 49.5%, rgba(255, 46, 196, 0.10) 49.7%, rgba(255, 46, 196, 0.10) 50.3%, transparent 50.5%) 60px 60px/200px 200px;
  opacity: 0.7;
  animation: circuitShift 18s linear infinite;
}
@keyframes circuitShift { from { background-position: 0 0, 0 0, 60px 60px; } to { background-position: 120px 120px, -160px 160px, 260px -140px; } }
.slide-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 30% 40%, rgba(5, 7, 13, 0.25), transparent),
    linear-gradient(180deg, rgba(5, 7, 13, 0.72) 0%, rgba(5, 7, 13, 0.55) 45%, var(--bg-0) 100%);
}

.hero-grid {
  display: grid; grid-template-columns: 1.25fr 0.75fr;
  align-items: center; gap: 48px; min-height: 72vh;
}

.kicker {
  font-family: var(--font-tech); font-size: 13px; letter-spacing: 4px;
  color: var(--neon-cyan); margin-bottom: 14px; text-shadow: var(--shadow-neon);
}

.hero-text h1 { font-size: clamp(46px, 8vw, 92px); line-height: 1.05; font-family: var(--font-tech); letter-spacing: 4px; }

.slide-desc {
  margin-top: 22px; max-width: 560px;
  color: var(--text-2); font-size: 17px; font-weight: 500;
}
.slide-desc b { color: var(--text-1); }

.slide-btns { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 34px; }

/* 故障字效（Glitch） */
.glitch { position: relative; display: inline-block; color: var(--text-1); text-shadow: 0 0 30px rgba(0, 229, 255, 0.35); }
.glitch::before, .glitch::after {
  content: attr(data-text); position: absolute; inset: 0; overflow: hidden;
  pointer-events: none; opacity: 0.85;
}
.glitch::before {
  color: var(--neon-cyan); clip-path: inset(0 0 58% 0);
  animation: glitchTop 3.2s infinite linear alternate-reverse;
}
.glitch::after {
  color: var(--neon-magenta); clip-path: inset(56% 0 0 0);
  animation: glitchBottom 2.7s infinite linear alternate-reverse;
}
@keyframes glitchTop {
  0%, 86%, 100% { transform: translate(0, 0); opacity: 0.85; }
  88% { transform: translate(-5px, -2px); }
  92% { transform: translate(4px, 1px); }
  96% { transform: translate(-2px, 2px); }
}
@keyframes glitchBottom {
  0%, 84%, 100% { transform: translate(0, 0); opacity: 0.85; }
  86% { transform: translate(5px, 2px); }
  90% { transform: translate(-4px, -1px); }
  95% { transform: translate(2px, -2px); }
}

/* 渐变圆环头像 */
.hero-avatar { text-align: center; justify-self: center; }
.avatar-ring {
  position: relative; width: 240px; height: 240px; margin: 0 auto;
  border-radius: 50%; display: grid; place-items: center;
  background:
    linear-gradient(var(--bg-1), var(--bg-1)) padding-box,
    conic-gradient(from var(--angle, 0deg), #00e5ff, #7c4dff, #ff2ec4, #00e5ff) border-box;
  border: 3px solid transparent;
  animation: ringSpin 5s linear infinite;
  box-shadow: 0 0 60px rgba(124, 77, 255, 0.35), inset 0 0 30px rgba(0, 229, 255, 0.12);
}
@property --angle { syntax: "<angle>"; initial-value: 0deg; inherits: false; }
@keyframes ringSpin { to { --angle: 360deg; } }

.avatar-char {
  font-family: var(--font-tech); font-size: 96px; font-weight: 900; line-height: 1;
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  filter: drop-shadow(0 0 18px rgba(0, 229, 255, 0.4));
}
.avatar-name {
  margin-top: 20px; font-family: var(--font-tech); letter-spacing: 6px;
  font-size: 15px; color: var(--text-1);
}
.avatar-id { margin-top: 6px; font-size: 13px; letter-spacing: 3px; color: var(--text-3); font-family: var(--font-tech); }

/* 向下滚动提示 */
.hero-scroll {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  z-index: 3; font-family: var(--font-tech); font-size: 11px; letter-spacing: 4px;
  color: var(--text-3); display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.hero-scroll span {
  width: 1px; height: 34px;
  background: linear-gradient(180deg, var(--neon-cyan), transparent);
  animation: scrollPulse 1.8s ease-in-out infinite;
}
@keyframes scrollPulse { 0%, 100% { opacity: 0.3; transform: scaleY(0.6); } 50% { opacity: 1; transform: scaleY(1); } }

/* ---------- 7. 数据速览 ---------- */
.stats { border-block: 1px solid var(--line-soft); background: rgba(10, 15, 28, 0.6); backdrop-filter: blur(8px); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { text-align: center; padding: 30px 12px; position: relative; }
.stat + .stat::before {
  content: ""; position: absolute; left: 0; top: 25%; bottom: 25%; width: 1px;
  background: linear-gradient(180deg, transparent, var(--line), transparent);
}
.stat-num {
  font-family: var(--font-tech); font-size: clamp(30px, 4vw, 44px); font-weight: 900;
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.stat-num i { font-style: normal; font-size: 0.5em; -webkit-text-fill-color: var(--text-3); color: var(--text-3); }
.stat-label { margin-top: 6px; color: var(--text-2); font-size: 14px; letter-spacing: 2px; }

/* ---------- 8. 通用 Section ---------- */
.section { padding: 96px 0; position: relative; }
.section-alt { background: linear-gradient(180deg, rgba(10, 15, 28, 0.4), rgba(15, 22, 38, 0.25)); }

.section-head { text-align: center; margin-bottom: 56px; }
.section-head h2 {
  font-size: clamp(28px, 4vw, 40px); font-family: var(--font-tech);
  letter-spacing: 3px; margin-top: 8px;
}
.section-sub { margin-top: 12px; color: var(--text-2); font-size: 16px; }

/* 滚动渐入 */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out); }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* 流光渐变边框（rgb-border） */
.rgb-border {
  position: relative; border: 1px solid transparent;
  background:
    linear-gradient(var(--bg-2), var(--bg-2)) padding-box,
    var(--grad-neon) border-box;
  background-size: 100% 100%, 300% 300%;
  animation: rgbFlow 7s linear infinite;
}
@keyframes rgbFlow {
  0% { background-position: 0 0, 0% 50%; }
  50% { background-position: 0 0, 100% 50%; }
  100% { background-position: 0 0, 0% 50%; }
}

/* ---------- 9. 基本信息 · 自我介绍 ---------- */
.about-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 26px; }

.info-card, .intro-card {
  border-radius: var(--radius-lg); padding: 30px 28px;
  border: 1px solid var(--line-soft);
  background: var(--bg-card); backdrop-filter: blur(10px);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s, border-color 0.3s;
}
.info-card:hover, .intro-card:hover {
  transform: translateY(-6px); border-color: var(--line);
  box-shadow: var(--shadow-card), 0 0 24px rgba(0, 229, 255, 0.12);
}
.info-card.rgb-border:hover { transform: translateY(-4px); }

.info-title { font-size: 20px; letter-spacing: 1px; margin-bottom: 20px; font-family: var(--font-body); }

.info-list { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.info-list > div { padding: 10px 12px; border-radius: 8px; transition: background 0.25s; }
.info-list > div:hover { background: rgba(0, 229, 255, 0.06); }
.info-list dt { font-size: 12px; color: var(--text-3); letter-spacing: 2px; }
.info-list dd { font-size: 16px; font-weight: 600; color: var(--text-1); margin-top: 2px; }

.intro-card p { color: var(--text-2); margin-bottom: 14px; font-size: 16px; }
.intro-card p b { color: var(--neon-cyan); font-weight: 700; }

/* HTML 语法速查模块（演示 <pre> / <code> / <hr> 标记，PPT 4.2.4 / 4.2.5） */
.html-note {
  margin-top: 26px; border-radius: var(--radius-lg); padding: 28px;
  border: 1px solid var(--line-soft); background: var(--bg-card);
  backdrop-filter: blur(10px); box-shadow: var(--shadow-card);
  transition: transform 0.3s var(--ease-out), border-color 0.3s;
}
.html-note:hover { transform: translateY(-4px); border-color: var(--line); }
.note-desc { color: var(--text-2); font-size: 14px; margin: 6px 0 18px; }
.note-desc code {
  font-family: var(--font-tech); font-size: 12.5px; padding: 1px 7px; border-radius: 5px;
  background: rgba(0, 229, 255, 0.1); color: var(--neon-cyan);
  border: 1px solid rgba(0, 229, 255, 0.22);
}
.code-pre {
  margin: 0; padding: 20px 24px; border-radius: 12px; overflow-x: auto;
  background: rgba(5, 7, 13, 0.7); border: 1px solid var(--line-soft);
  font-family: "Consolas", "Courier New", monospace; font-size: 14px; line-height: 1.8;
  color: var(--text-1);
  box-shadow: inset 0 0 30px rgba(0, 229, 255, 0.04);
}
.code-pre code { color: inherit; font-family: inherit; }
/* 代码块内嵌的水平线效果（<hr> 在此为文本展示，非真元素） */
.html-note hr { border: none; height: 1px; margin: 18px 0;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent); }

.kw-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.kw-tags span {
  padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 600;
  color: var(--neon-cyan); background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.25);
  transition: background 0.25s, transform 0.25s;
}
.kw-tags span:hover { background: rgba(0, 229, 255, 0.18); transform: translateY(-2px); }

/* ---------- 10. 技能特长（进度条） ---------- */
.skill-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 40px; }
.skill-item { padding: 6px 0; }
.skill-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; }
.skill-head b { font-size: 16px; letter-spacing: 1px; }
.skill-head span { font-family: var(--font-tech); font-size: 14px; color: var(--neon-cyan); }
.skill-track {
  height: 10px; border-radius: 999px; overflow: hidden;
  background: rgba(154, 167, 199, 0.12);
  border: 1px solid var(--line-soft);
}
.skill-fill {
  height: 100%; width: 0; border-radius: 999px;
  background: var(--grad-neon); background-size: 200% 100%;
  animation: rgbFlow 4s linear infinite;
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.45);
  transition: width 1.4s var(--ease-out);
}

/* ---------- 11. 在校经历时间线 ---------- */
.timeline { position: relative; max-width: 860px; margin: 0 auto; padding-left: 30px; }
.timeline::before {
  content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 2px;
  background: linear-gradient(180deg, var(--neon-cyan), var(--neon-purple), var(--neon-magenta));
  box-shadow: var(--shadow-neon); border-radius: 2px; opacity: 0.6;
}
.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: 8px; width: 12px; height: 12px;
  border-radius: 50%; background: var(--bg-0);
  border: 2px solid var(--neon-cyan); box-shadow: var(--shadow-neon);
}
.tl-date { display: flex; align-items: baseline; gap: 12px; margin-bottom: 8px; }
.tl-date b { font-family: var(--font-tech); font-size: 17px; color: var(--neon-cyan); letter-spacing: 1px; }
.tl-date span { font-size: 11px; letter-spacing: 3px; color: var(--text-3); font-family: var(--font-tech); }

.tl-body {
  border: 1px solid var(--line-soft); border-radius: var(--radius);
  padding: 18px 22px; background: var(--bg-card);
  transition: transform 0.3s var(--ease-out), border-color 0.3s, box-shadow 0.3s;
}
.tl-body:hover { transform: translateX(8px); border-color: var(--line); box-shadow: 0 8px 30px rgba(0, 229, 255, 0.1); }
.tl-body h3 { font-size: 17px; margin-bottom: 6px; display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
.tl-body p { color: var(--text-2); font-size: 15px; }

/* 状态徽章 */
.status {
  font-size: 11px; font-weight: 700; letter-spacing: 2px; padding: 2px 10px;
  border-radius: 999px; font-family: var(--font-tech);
}
.status-live { color: #051; background: rgba(0, 255, 170, 0.15); border: 1px solid rgba(0, 255, 170, 0.4); }
.status-up { color: var(--neon-cyan); background: rgba(0, 229, 255, 0.1); border: 1px solid rgba(0, 229, 255, 0.4); }
.status-end { color: var(--neon-magenta); background: rgba(255, 46, 196, 0.1); border: 1px solid rgba(255, 46, 196, 0.4); }

/* ---------- 12. 荣誉奖项（成就徽章） ---------- */
.honor-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.honor-card {
  border-radius: var(--radius); padding: 28px 22px; text-align: center;
  border: 1px solid var(--line-soft); background: var(--bg-card);
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s, border-color 0.3s;
}
.honor-card:hover { transform: translateY(-8px); box-shadow: 0 14px 40px rgba(124, 77, 255, 0.22); }
.honor-icon { font-size: 40px; display: inline-block; filter: drop-shadow(0 0 12px rgba(0, 229, 255, 0.35)); }
.honor-card h3 { margin-top: 12px; font-size: 17px; }
.honor-card p { margin-top: 6px; color: var(--text-3); font-size: 13px; letter-spacing: 1px; }

/* ---------- 13. 兴趣爱好 ---------- */
.hobby-wrap { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.hobby-chip {
  padding: 12px 22px; border-radius: 999px; font-size: 15px; font-weight: 600;
  color: var(--text-1); background: var(--bg-card);
  border: 1px solid var(--line-soft);
  transition: transform 0.25s var(--ease-out), border-color 0.25s, box-shadow 0.25s;
}
.hobby-chip:hover {
  transform: translateY(-4px) scale(1.03); border-color: var(--neon-cyan);
  box-shadow: var(--shadow-neon);
}

/* CTA 横幅：纯 CSS 渐变背景，不依赖图片 */
.cta-banner {
  position: relative; padding: 90px 0; text-align: center; overflow: hidden;
  background:
    radial-gradient(ellipse 60% 60% at 20% 50%, rgba(0, 229, 255, 0.16), transparent 60%),
    radial-gradient(ellipse 55% 55% at 80% 50%, rgba(255, 46, 196, 0.14), transparent 60%),
    linear-gradient(135deg, #0a0f1c 0%, #151030 50%, #0f1626 100%);
}
.cta-banner::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, transparent 49.6%, rgba(124, 77, 255, 0.10) 49.8%, rgba(124, 77, 255, 0.10) 50.2%, transparent 50.4%) 0 0/100px 100px,
    linear-gradient(180deg, var(--bg-0), rgba(5, 7, 13, 0.4) 40%, var(--bg-0));
}
.cta-inner { position: relative; z-index: 1; }
.cta-inner h2 { font-family: var(--font-tech); font-size: clamp(26px, 4vw, 38px); letter-spacing: 3px; }
.cta-inner p { margin: 14px auto 30px; max-width: 520px; color: var(--text-2); }

/* ---------- 15. 页脚（华为式多列） ---------- */
.site-footer { border-top: 1px solid var(--line-soft); background: var(--bg-1); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; padding: 56px 0 40px; }
.footer-col h4 {
  font-size: 14px; letter-spacing: 3px; color: var(--text-1); margin-bottom: 16px;
  font-family: var(--font-tech);
}
.footer-col a { display: block; color: var(--text-2); font-size: 14px; padding: 5px 0; transition: color 0.2s, transform 0.2s; }
.footer-col a:hover { color: var(--neon-cyan); transform: translateX(4px); }
.footer-desc { margin-top: 14px; color: var(--text-3); font-size: 13px; }
.footer-bottom { border-top: 1px solid var(--line-soft); padding: 18px 0; }
.footer-bottom p { text-align: center; color: var(--text-3); font-size: 13px; }

/* ---------- 16. 返回顶部 & Toast ---------- */
#toTop {
  position: fixed; right: 26px; bottom: 30px; z-index: 90;
  width: 46px; height: 46px; border-radius: 12px;
  color: var(--neon-cyan); font-size: 20px;
  background: var(--bg-card); border: 1px solid var(--line);
  backdrop-filter: blur(8px);
  opacity: 0; visibility: hidden; transform: translateY(16px);
  transition: opacity 0.3s, transform 0.3s, visibility 0.3s, box-shadow 0.3s;
}
#toTop.show { opacity: 1; visibility: visible; transform: translateY(0); }
#toTop:hover { box-shadow: var(--shadow-neon); border-color: var(--neon-cyan); }

.toast {
  position: fixed; top: 84px; left: 50%; z-index: 200;
  transform: translate(-50%, -160%);
  padding: 12px 26px; border-radius: 10px;
  background: rgba(10, 15, 28, 0.92); color: var(--text-1);
  border: 1px solid var(--neon-cyan); box-shadow: var(--shadow-neon);
  font-size: 14px; font-weight: 600; letter-spacing: 1px;
  backdrop-filter: blur(10px);
  transition: transform 0.45s var(--ease-out);
  pointer-events: none; white-space: nowrap;
}
.toast.show { transform: translate(-50%, 0); }
.toast.err { border-color: var(--neon-magenta); box-shadow: 0 0 24px rgba(255, 46, 196, 0.3); }

/* ============================================================
   17. 子页面通用：页头横幅
   ============================================================ */
.page-hero {
  position: relative; padding: calc(var(--nav-h) + 70px) 0 56px;
  text-align: center; overflow: hidden;
  /* 纯 CSS 渐变背景：青紫霓虹光晕 */
  background:
    radial-gradient(ellipse 55% 60% at 25% 40%, rgba(124, 77, 255, 0.22), transparent 60%),
    radial-gradient(ellipse 50% 55% at 78% 60%, rgba(0, 229, 255, 0.18), transparent 60%),
    linear-gradient(135deg, #0a0f1c 0%, #151030 45%, #0f1626 100%);
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, transparent 49.6%, rgba(255, 46, 196, 0.08) 49.8%, rgba(255, 46, 196, 0.08) 50.2%, transparent 50.4%) 0 0/90px 90px,
    linear-gradient(180deg, rgba(5, 7, 13, 0.8), rgba(5, 7, 13, 0.55) 55%, var(--bg-0));
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 {
  font-family: var(--font-tech); font-size: clamp(30px, 5vw, 46px);
  letter-spacing: 4px; margin-top: 10px;
}
.page-hero .crumb { color: var(--text-3); font-size: 13px; letter-spacing: 2px; }
.page-hero .crumb a { color: var(--text-2); }
.page-hero .crumb a:hover { color: var(--neon-cyan); }

/* ============================================================
   18. projects.html 项目与实践
   ============================================================ */

/* 筛选 chips */
.filter-bar { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-bottom: 44px; }
.chip {
  padding: 9px 22px; border-radius: 999px; font-size: 14px; font-weight: 700;
  letter-spacing: 1px; color: var(--text-2);
  border: 1px solid var(--line-soft); background: var(--bg-card);
  transition: all 0.25s var(--ease-out);
}
.chip:hover { color: var(--text-1); border-color: var(--line); transform: translateY(-2px); }
.chip.active {
  color: #04121a; background: var(--grad-cyan); border-color: transparent;
  box-shadow: 0 6px 20px rgba(0, 229, 255, 0.35);
}

/* 项目卡片网格（对标小米商城卡片） */
.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.project-card {
  border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line-soft); background: var(--bg-card);
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s, border-color 0.35s;
  animation: cardIn 0.55s var(--ease-out) both;
}
.project-card:hover {
  transform: translateY(-10px); border-color: var(--line);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 229, 255, 0.12);
}
.project-card.hide { display: none; }
@keyframes cardIn { from { opacity: 0; transform: translateY(26px) scale(0.97); } to { opacity: 1; transform: none; } }

/* 项目卡片媒体区：纯 CSS 渐变占位 + 图标，不依赖图片 */
.proj-media {
  position: relative; overflow: hidden; aspect-ratio: 16 / 10;
  display: grid; place-items: center;
  background:
    radial-gradient(ellipse 70% 70% at 30% 30%, rgba(255,255,255,0.10), transparent 60%),
    var(--proj-grad, linear-gradient(135deg, #0a2a3a, #151030));
  transition: filter 0.35s;
}
/* 网格装饰 */
.proj-media::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(90deg, transparent 49.5%, rgba(255,255,255,0.06) 49.7%, rgba(255,255,255,0.06) 50.3%, transparent 50.5%) 0 0/40px 40px,
    linear-gradient(0deg, transparent 49.5%, rgba(255,255,255,0.06) 49.7%, rgba(255,255,255,0.06) 50.3%, transparent 50.5%) 0 0/40px 40px;
  opacity: 0.6;
}
/* 项目图标（emoji）放大、发光 */
.proj-media .proj-icon {
  position: relative; z-index: 2; font-size: 52px; line-height: 1;
  filter: drop-shadow(0 0 16px rgba(0, 229, 255, 0.45));
  transition: transform 0.6s var(--ease-out);
}
.project-card:hover .proj-media .proj-icon { transform: scale(1.12) rotate(-4deg); }
.proj-media::after {
  content: ""; position: absolute; inset: 0; z-index: 3;
  background: linear-gradient(180deg, transparent 55%, rgba(5, 7, 13, 0.75));
}

/* 按分类区分渐变配色 */
.proj-media.cat-data { --proj-grad: linear-gradient(135deg, #0a3a2a, #0a2a3a); }
.proj-media.cat-web  { --proj-grad: linear-gradient(135deg, #1a1a3a, #0a2a3a); }
.proj-media.cat-tool { --proj-grad: linear-gradient(135deg, #3a2a0a, #2a1a3a); }

.proj-body { padding: 20px 22px 24px; }
.proj-top { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.proj-name { font-size: 18px; font-weight: 700; letter-spacing: 0.5px; }
.proj-time { font-size: 12px; color: var(--text-3); font-family: var(--font-tech); letter-spacing: 1px; }
.proj-desc { margin-top: 10px; color: var(--text-2); font-size: 14px; min-height: 44px; }
.proj-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tag {
  font-size: 12px; font-weight: 600; padding: 3px 12px; border-radius: 999px;
  color: var(--neon-cyan); background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.25);
}
.tag.t-purple { color: #b39dff; background: rgba(124, 77, 255, 0.12); border-color: rgba(124, 77, 255, 0.35); }
.tag.t-magenta { color: var(--neon-magenta); background: rgba(255, 46, 196, 0.1); border-color: rgba(255, 46, 196, 0.3); }

/* 课程证书表（对标华为参数对比表） */
.table-wrap {
  border: 1px solid var(--line-soft); border-radius: var(--radius-lg);
  overflow-x: auto; background: var(--bg-card); box-shadow: var(--shadow-card);
}
.cert-table { width: 100%; border-collapse: collapse; min-width: 640px; }
.cert-table thead th {
  text-align: left; padding: 16px 22px;
  font-family: var(--font-tech); font-size: 14px; letter-spacing: 2px;
  color: #04121a; background: var(--grad-neon); background-size: 200% 100%;
  animation: rgbFlow 6s linear infinite;
  white-space: nowrap;
}
.cert-table tbody td { padding: 14px 22px; font-size: 15px; border-top: 1px solid var(--line-soft); color: var(--text-2); }
.cert-table tbody td:first-child { color: var(--text-1); font-weight: 600; white-space: nowrap; }
.cert-table tbody tr { transition: background 0.2s; }
.cert-table tbody tr:hover { background: rgba(0, 229, 255, 0.05); }
.cert-table .score { color: var(--neon-cyan); font-weight: 700; font-family: var(--font-tech); }

/* ============================================================
   19. message.html 留言板
   ============================================================ */
.msg-layout { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 28px; align-items: start; }

.msg-panel {
  border-radius: var(--radius-lg); padding: 30px 28px;
  border: 1px solid var(--line-soft); background: var(--bg-card);
  backdrop-filter: blur(10px); box-shadow: var(--shadow-card);
}
.msg-panel.rgb-border { animation: rgbFlow 7s linear infinite; }
.msg-panel h3 { font-size: 20px; margin-bottom: 6px; }
.msg-panel .panel-sub { color: var(--text-3); font-size: 13px; margin-bottom: 24px; letter-spacing: 1px; }

.form-field { margin-bottom: 20px; }
.field-label { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; }
.field-label b { font-size: 14px; letter-spacing: 1px; }
.field-label b i { color: var(--neon-magenta); font-style: normal; margin-left: 3px; }
.field-label .opt { font-size: 12px; color: var(--text-3); }

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%; padding: 12px 16px; border-radius: 10px;
  color: var(--text-1); font-size: 15px;
  background: rgba(5, 7, 13, 0.6);
  border: 1px solid var(--line-soft);
  outline: none; transition: border-color 0.25s, box-shadow 0.25s;
}
.form-field textarea { resize: vertical; min-height: 120px; line-height: 1.7; }
.form-field select option { background: var(--bg-1); color: var(--text-1); }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  border-color: var(--neon-cyan); box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.12);
}
.form-field.error input, .form-field.error textarea { border-color: var(--neon-magenta); box-shadow: 0 0 0 3px rgba(255, 46, 196, 0.1); }

.field-error { display: none; margin-top: 6px; font-size: 12.5px; color: var(--neon-magenta); }
.form-field.error .field-error { display: block; }

.char-count { font-size: 12px; color: var(--text-3); font-family: var(--font-tech); }
.char-count.over { color: var(--neon-magenta); }

/* 单选 / 多选组（演示 input type=radio / checkbox 控件，PPT 4.6.3） */
.radio-group, .check-group {
  display: flex; flex-wrap: wrap; gap: 10px 18px;
  padding: 10px 0 4px;
}
.radio-group label, .check-group label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; color: var(--text-2); cursor: pointer;
  padding: 6px 12px; border-radius: 8px;
  border: 1px solid var(--line-soft); background: rgba(5, 7, 13, 0.4);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.radio-group label:hover, .check-group label:hover {
  color: var(--text-1); border-color: var(--line);
}
.radio-group input[type="radio"], .check-group input[type="checkbox"] {
  width: auto; margin: 0; accent-color: var(--neon-cyan); cursor: pointer;
}
.radio-group label:has(input:checked), .check-group label:has(input:checked) {
  color: var(--neon-cyan); border-color: var(--neon-cyan);
  background: rgba(0, 229, 255, 0.08);
}

/* 表单按钮组 */
.form-actions { display: flex; gap: 14px; margin-top: 8px; }
.form-actions .btn { flex: 1; }

/* 五星评分 */
.star-rating { display: flex; gap: 6px; }
.star {
  font-size: 26px; line-height: 1; color: var(--text-3); cursor: pointer;
  transition: transform 0.15s var(--ease-out), color 0.15s, filter 0.15s;
  text-shadow: none; user-select: none;
}
.star:hover { transform: scale(1.2); }
.star.lit {
  color: #ffd54a;
  filter: drop-shadow(0 0 8px rgba(255, 213, 74, 0.6));
}

/* 留言列表 */
.msg-side { display: flex; flex-direction: column; gap: 18px; }
.list-head { display: flex; justify-content: space-between; align-items: center; }
.sort-group { display: flex; gap: 8px; }
.sort-btn {
  padding: 7px 18px; border-radius: 999px; font-size: 13px; font-weight: 700;
  letter-spacing: 1px; color: var(--text-2);
  border: 1px solid var(--line-soft); background: var(--bg-card);
  transition: all 0.25s;
}
.sort-btn:hover { color: var(--text-1); }
.sort-btn.active { color: #04121a; background: var(--grad-cyan); border-color: transparent; box-shadow: 0 4px 14px rgba(0, 229, 255, 0.3); }
.msg-count {
  font-family: var(--font-tech); font-size: 13px; letter-spacing: 2px; color: var(--text-2);
}
.msg-count b { color: var(--neon-cyan); font-size: 18px; }

.msg-list { display: flex; flex-direction: column; gap: 16px; min-height: 200px; }

.msg-card {
  border-radius: var(--radius); padding: 18px 20px;
  border: 1px solid var(--line-soft); background: var(--bg-card);
  animation: cardIn 0.5s var(--ease-out) both;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}
.msg-card:hover { border-color: var(--line); box-shadow: 0 10px 30px rgba(0, 229, 255, 0.08); transform: translateY(-3px); }

.msg-head { display: flex; align-items: center; gap: 12px; }
.msg-avatar {
  width: 42px; height: 42px; border-radius: 50%; flex: none;
  display: grid; place-items: center;
  font-weight: 800; font-size: 17px; color: #04121a;
  background: var(--grad-cyan); box-shadow: 0 0 14px rgba(0, 229, 255, 0.35);
}
.msg-card:nth-child(3n) .msg-avatar { background: linear-gradient(135deg, #7c4dff, #ff2ec4); box-shadow: 0 0 14px rgba(255, 46, 196, 0.3); }
.msg-meta { flex: 1; min-width: 0; }
.msg-name { font-weight: 700; font-size: 15px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.msg-type {
  font-size: 11px; font-weight: 700; padding: 1px 10px; border-radius: 999px;
  color: var(--neon-purple); background: rgba(124, 77, 255, 0.12);
  border: 1px solid rgba(124, 77, 255, 0.35); letter-spacing: 1px;
}
.msg-identity {
  font-size: 11px; font-weight: 700; padding: 1px 10px; border-radius: 999px;
  color: var(--neon-cyan); background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.3); letter-spacing: 1px;
}
.msg-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.mini-tag {
  font-size: 11px; font-weight: 600; padding: 2px 10px; border-radius: 999px;
  color: var(--text-2); background: rgba(154, 167, 199, 0.1);
  border: 1px solid var(--line-soft); letter-spacing: 0.5px;
}
.msg-time { font-size: 12px; color: var(--text-3); margin-top: 2px; font-family: var(--font-tech); letter-spacing: 1px; }
.msg-stars { font-size: 13px; color: #ffd54a; letter-spacing: 2px; text-shadow: 0 0 8px rgba(255, 213, 74, 0.4); }

.msg-content { margin-top: 10px; color: var(--text-2); font-size: 15px; word-break: break-word; }

.msg-actions { display: flex; gap: 14px; margin-top: 14px; }
.like-btn, .del-btn {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 700; color: var(--text-3);
  padding: 5px 12px; border-radius: 8px; border: 1px solid transparent;
  transition: all 0.2s;
}
.like-btn:hover { color: var(--neon-magenta); background: rgba(255, 46, 196, 0.08); }
.like-btn.liked { color: var(--neon-magenta); }
.like-btn.liked .heart { animation: heartPop 0.35s var(--ease-out); }
@keyframes heartPop { 0% { transform: scale(1); } 50% { transform: scale(1.5); } 100% { transform: scale(1); } }
.del-btn:hover { color: #ff5b6a; background: rgba(255, 91, 106, 0.08); }

/* 空状态 */
.empty-state {
  text-align: center; padding: 60px 20px; color: var(--text-3);
  border: 1px dashed var(--line-soft); border-radius: var(--radius);
}
.empty-state .es-icon { font-size: 40px; display: block; margin-bottom: 10px; opacity: 0.7; }

/* ============================================================
   20. 响应式适配（992 / 768 / 480 三档）
   ============================================================ */
@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .hero-text .slide-desc, .hero-text { margin-inline: auto; }
  .slide-btns { justify-content: center; }
  .about-grid { grid-template-columns: 1fr; }
  .msg-layout { grid-template-columns: 1fr; }
  .project-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .burger { display: flex; }
  .nav-links {
    position: fixed; top: var(--nav-h); right: 0; bottom: 0; z-index: 99;
    flex-direction: column; gap: 4px; margin: 0; padding: 24px 28px;
    width: min(72vw, 300px);
    background: rgba(5, 7, 13, 0.96); backdrop-filter: blur(16px);
    border-left: 1px solid var(--line-soft);
    transform: translateX(100%); transition: transform 0.35s var(--ease-out);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { padding: 14px 16px; font-size: 17px; }
  .nav-right .btn { display: none; }

  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat + .stat::before { display: none; }
  .stat:nth-child(even)::before { display: block; left: 0; }

  .skill-grid { grid-template-columns: 1fr; }
  .honor-grid { grid-template-columns: 1fr 1fr; }
  .project-grid { grid-template-columns: 1fr; }
  .avatar-ring { width: 190px; height: 190px; }
  .avatar-char { font-size: 76px; }
}

@media (max-width: 480px) {
  .honor-grid { grid-template-columns: 1fr; }
  .info-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 8px; }
  .slide-btns .btn { width: 100%; }
  .list-head { flex-direction: column; gap: 12px; align-items: flex-start; }
}

/* ---------- 无障碍：减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}