/* ============================================================
   求职者个人网站 · 样式表 style.css
   课程维度：色彩（设计令牌）/ 字体（字重层级）/ 框架布局（栅格·响应式）/ 人机交互（微交互·表单聚焦态）
   由原单文件版拆分而来，配套 求职者个人网站.html 使用
   ============================================================ */
/* ============ 1. 色彩：设计令牌（统一色板，供全站引用） ============ */
:root{
  --bg:#f4f4f7;                /* 页面浅灰底（Apple 式留白底色） */
  --surface:#ffffff;           /* 卡片 / 面板 */
  --ink:#1b1b20;               /* 主文字 */
  --ink-2:#6c6c76;             /* 次级文字 */
  --ink-3:#9c9ca6;             /* 弱化文字 */
  --line:rgba(27,27,32,.08);   /* 分隔线 */
  --acc-1:#5b5be6;             /* Stripe 靛蓝（主强调） */
  --acc-2:#8a5cf6;             /* 紫 */
  --acc-3:#00b8ff;             /* 青 */
  --grad:linear-gradient(120deg,#5b5be6 0%,#8a5cf6 52%,#00b8ff 100%);   /* 品牌渐变 */
  --grad-soft:linear-gradient(135deg,rgba(91,91,230,.12),rgba(0,184,255,.12));
  --r-lg:26px;                 /* 大圆角：项目卡 / 联系卡 */
  --r-md:20px;                 /* 中圆角：技能卡 */
  --r-sm:14px;                 /* 小圆角：表单输入框 */
  --shadow-soft:0 1px 2px rgba(30,30,60,.04),0 8px 24px rgba(30,30,60,.06);
  --shadow-lift:0 4px 12px rgba(30,30,60,.07),0 24px 52px rgba(40,40,100,.14);
}
/* ============ 2. 字体：单一字族 + 字重层级 ============ */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Segoe UI","Microsoft YaHei","Helvetica Neue",sans-serif;
  color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  font-size:16px;line-height:1.6;
}
a{color:inherit;text-decoration:none;cursor:pointer}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--acc-1);outline-offset:3px;border-radius:6px}
img{display:block;max-width:100%}

/* ============ 3. 框架布局：页面容器 / 视图路由 ============ */
.wrap{max-width:1180px;margin:0 auto;padding:0 44px}
.view{display:none}
.view.active{display:block;animation:viewIn .45s cubic-bezier(.16,1,.3,1) both}
@keyframes viewIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
section{padding:96px 0}
section[id],header[id]{scroll-margin-top:84px}

/* ============ 通用排版 ============ */
.kicker{
  font-size:13px;font-weight:600;letter-spacing:.22em;
  color:var(--acc-1);text-transform:uppercase;margin-bottom:16px;
}
.sec-title{font-size:46px;font-weight:800;letter-spacing:-1.2px;line-height:1.16;margin-bottom:18px}
.sec-sub{font-size:16.5px;line-height:1.85;color:var(--ink-2);max-width:640px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.page-head{padding:108px 0 0}

/* 滚动揭示（仅 JS 运行时隐藏，无 JS 时内容始终可见） */
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.16,1,.3,1),transform .8s cubic-bezier(.16,1,.3,1)}
.js .reveal.in{opacity:1;transform:none}

/* ============ 按钮（人机交互：悬停上浮 + 阴影变化） ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 24px;border-radius:999px;border:none;cursor:pointer;
  font-size:15px;font-weight:500;white-space:nowrap;
  transition:transform .28s cubic-bezier(.2,.7,.3,1),box-shadow .28s,background .28s,border-color .28s;
}
.btn svg{width:17px;height:17px;flex:none}
.btn:active{transform:translateY(0) scale(.97)}
.btn-primary{background:linear-gradient(120deg,#5b5be6,#7c5bf0 55%,#00b8ff);color:#fff;box-shadow:0 10px 24px rgba(91,91,230,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(91,91,230,.42)}
.btn-ghost{background:var(--surface);border:1px solid var(--line);color:var(--ink);box-shadow:var(--shadow-soft)}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(91,91,230,.4);box-shadow:var(--shadow-lift)}
.btn-white{background:#fff;color:#5b5be6;box-shadow:0 10px 24px rgba(20,20,60,.22)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(20,20,60,.3)}

/* ============ 导航（Apple 玻璃态 · 吸顶） ============ */
.nav{
  position:sticky;top:0;z-index:100;
  background:rgba(244,244,247,.82);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;padding:10px 0}
.logo-dot{width:11px;height:11px;border-radius:4px;background:var(--grad);transform:rotate(45deg)}
.nav-links{display:flex;align-items:center;gap:30px;font-size:15px;color:var(--ink-2)}
.nav-links a{transition:color .25s;position:relative;padding:6px 2px}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--ink);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:2px;right:2px;bottom:0;height:2px;border-radius:2px;background:var(--grad)}
.sid-pill{
  font-size:13px;font-weight:500;letter-spacing:.08em;white-space:nowrap;
  color:var(--ink-2);background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow-soft);
  padding:7px 15px;border-radius:999px;
}

/* ============ 卡片 / 栅格（Stripe 圆角卡片 + Figma 案例卡片） ============ */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:52px}
.skill-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:52px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:32px 30px;
  transition:transform .32s cubic-bezier(.2,.7,.3,1),box-shadow .32s,border-color .32s;
}
.card:hover{transform:translateY(-7px);box-shadow:var(--shadow-lift);border-color:rgba(91,91,230,.3)}
.card .ico{
  width:50px;height:50px;border-radius:15px;margin-bottom:22px;
  background:var(--grad-soft);color:var(--acc-1);
  display:flex;align-items:center;justify-content:center;
  transition:transform .32s cubic-bezier(.2,.7,.3,1),background .32s,color .32s;
}
.card .ico svg{width:24px;height:24px}
.card:hover .ico{background:var(--grad);color:#fff;transform:rotate(-6deg) scale(1.06)}
.card h3{font-size:19px;font-weight:700;margin-bottom:12px}
.card p{font-size:14.5px;line-height:1.8;color:var(--ink-2)}

/* 项目案例卡片（Figma 风格：封面图 + 标签 + 指标） */
.proj{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;
  transition:transform .35s cubic-bezier(.2,.7,.3,1),box-shadow .35s,border-color .35s;
}
.proj:hover{transform:translateY(-8px);box-shadow:var(--shadow-lift);border-color:rgba(91,91,230,.28)}
.proj .cover{position:relative;overflow:hidden;aspect-ratio:16/10;background:#e9e9ef}
.proj .cover img{width:100%;height:100%;object-fit:cover;transition:transform .7s cubic-bezier(.2,.6,.2,1)}
.proj:hover .cover img{transform:scale(1.055)}
.proj .body{padding:28px 30px 32px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tag{
  font-size:13px;font-weight:500;color:var(--acc-1);
  background:rgba(91,91,230,.08);border:1px solid rgba(91,91,230,.14);
  padding:5px 12px;border-radius:999px;
}
.proj h3{font-size:21px;font-weight:700;margin-bottom:12px;letter-spacing:-.2px}
.proj .desc{font-size:14.5px;line-height:1.8;color:var(--ink-2);margin-bottom:22px}
.metric{
  display:inline-flex;align-items:center;gap:9px;
  font-size:14.5px;font-weight:700;color:var(--ink);
  background:var(--grad-soft);border:1px solid rgba(91,91,230,.18);
  padding:9px 16px;border-radius:999px;
}
.metric svg{width:15px;height:15px;color:var(--acc-1)}
.metric b{color:var(--acc-1);font-weight:800}

/* ============ 首页 Hero ============ */
.hero{position:relative;overflow:hidden;padding:128px 0 0}
.aurora{position:absolute;inset:0;pointer-events:none}
.aurora-blob{position:absolute;border-radius:50%;filter:blur(80px);opacity:.5}
.aurora-blob.a{width:520px;height:520px;left:-120px;top:-160px;background:radial-gradient(circle,#6d6bff 0%,transparent 65%);animation:drift 18s ease-in-out infinite alternate}
.aurora-blob.b{width:460px;height:460px;right:-80px;top:-60px;background:radial-gradient(circle,#a17cff 0%,transparent 65%);animation:drift 22s ease-in-out infinite alternate-reverse}
.aurora-blob.c{width:420px;height:420px;left:38%;bottom:-220px;background:radial-gradient(circle,#37c8ff 0%,transparent 65%);animation:drift 26s ease-in-out infinite alternate}
@keyframes drift{
  0%{transform:translate(0,0) scale(1)}
  50%{transform:translate(40px,26px) scale(1.08)}
  100%{transform:translate(-30px,-22px) scale(.96)}
}
.hero-in{position:relative;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:14px;color:var(--ink-2);background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow-soft);
  padding:8px 16px;border-radius:999px;
}
.eyebrow .pulse{width:8px;height:8px;border-radius:50%;background:var(--grad);box-shadow:0 0 0 4px rgba(91,91,230,.12)}
.hero h1{
  display:flex;align-items:center;justify-content:center;gap:24px;flex-wrap:wrap;
  font-size:88px;font-weight:900;letter-spacing:-3px;line-height:1.04;
  margin:30px 0 8px;
}
.sid-badge{
  font-size:15px;font-weight:500;letter-spacing:.08em;white-space:nowrap;
  color:var(--ink-2);background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow-soft);
  padding:9px 18px;border-radius:999px;
}
.hero .role{font-size:26px;font-weight:500;color:var(--ink-2);letter-spacing:.5px}
.hero .lead{max-width:640px;margin:26px auto 0;font-size:17px;line-height:1.9;color:var(--ink-2)}
.hero-cta{display:flex;gap:14px;justify-content:center;margin-top:38px}
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:84px;border-top:1px solid var(--line);
}
.stat{text-align:center;padding:30px 12px 0;position:relative}
.stat+.stat::before{content:"";position:absolute;left:0;top:30px;bottom:0;width:1px;background:var(--line)}
.stat b{display:block;font-size:42px;font-weight:900;letter-spacing:-1px;line-height:1}
.stat span{display:block;margin-top:10px;font-size:14px;color:var(--ink-2)}

/* ============ 区块底色节奏 ============ */
.sec-white{background:var(--surface)}
.sec-about{background:var(--surface);text-align:center}
.about-title{font-size:48px;font-weight:800;letter-spacing:-1.4px;line-height:1.22;max-width:760px;margin:0 auto 26px}
.about-text{font-size:17px;line-height:2;color:var(--ink-2);max-width:700px;margin:0 auto}
.chips{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:40px}
.chip{font-size:14px;font-weight:500;background:#f5f5f8;border:1px solid var(--line);padding:9px 20px;border-radius:999px}
.cta-center{text-align:center;margin-top:44px}

/* ============ 渐变联系卡片 ============ */
.contact-card{
  position:relative;overflow:hidden;
  background:linear-gradient(130deg,#5b5be6 0%,#7c5bf0 48%,#00a9ff 100%);
  border-radius:36px;padding:76px 56px;text-align:center;color:#fff;
  box-shadow:0 32px 64px rgba(80,60,220,.35);
}
.contact-card::before,.contact-card::after{
  content:"";position:absolute;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.18),transparent 65%);
}
.contact-card::before{width:440px;height:440px;left:-140px;top:-180px}
.contact-card::after{width:360px;height:360px;right:-120px;bottom:-160px}
.contact-card>*{position:relative;z-index:1}
.contact-card h2{font-size:42px;font-weight:800;letter-spacing:-1.4px}
.contact-card p{font-size:16.5px;line-height:1.9;color:rgba(255,255,255,.86);max-width:520px;margin:18px auto 0}
.contact-actions{display:flex;gap:14px;justify-content:center;margin-top:36px}
.contact-meta{margin-top:36px;font-size:13px;letter-spacing:.1em;color:rgba(255,255,255,.72);display:inline-flex;align-items:center;gap:10px;border-top:1px solid rgba(255,255,255,.22);padding-top:22px}

/* ============ 留言板（预留功能） ============ */
.gb-grid{display:grid;grid-template-columns:5fr 7fr;gap:28px;margin-top:52px;align-items:start}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:34px 32px;box-shadow:var(--shadow-soft);
}
.panel h3{font-size:20px;font-weight:700;margin-bottom:8px}
.panel .note{font-size:13.5px;line-height:1.8;color:var(--ink-2);margin-bottom:22px}
.note-badge{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:500;color:var(--acc-1);
  background:rgba(91,91,230,.08);border:1px solid rgba(91,91,230,.16);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.note-badge svg{width:13px;height:13px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px}
.field label em{font-style:normal;color:var(--acc-1)}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--bg);padding:13px 16px;font-size:15px;color:var(--ink);font-family:inherit;
  transition:border-color .25s,box-shadow .25s,background .25s;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7}
/* 人机交互：输入框聚焦态 */
.field input:focus,.field textarea:focus{
  outline:none;background:var(--surface);
  border-color:rgba(91,91,230,.55);
  box-shadow:0 0 0 4px rgba(91,91,230,.12);
}
.gb-list{display:flex;flex-direction:column;gap:16px}
.gb-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 22px;transition:border-color .25s,box-shadow .25s;
}
.gb-item:hover{border-color:rgba(91,91,230,.3);box-shadow:var(--shadow-soft)}
.gb-item .head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.gb-item .who{display:flex;align-items:center;gap:10px;font-size:14.5px;font-weight:700}
.gb-item .who .av{width:34px;height:34px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700}
.gb-item .who .when{font-weight:400;color:var(--ink-3);font-size:12.5px}
.gb-item .txt{font-size:15px;line-height:1.8;color:var(--ink-2)}
.gb-item .del{
  border:none;background:transparent;color:var(--ink-3);cursor:pointer;
  font-size:12.5px;padding:4px 8px;border-radius:8px;transition:color .2s,background .2s;
}
.gb-item .del:hover{color:#e05a5a;background:rgba(224,90,90,.08)}
.gb-empty{text-align:center;color:var(--ink-3);padding:34px 0;font-size:14.5px}
.gb-count{font-size:13px;color:var(--ink-3);margin-bottom:14px}

/* ============ Toast（提交即时反馈） ============ */
.toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,16px);
  background:var(--ink);color:#fff;font-size:14px;
  padding:12px 22px;border-radius:999px;box-shadow:0 12px 32px rgba(20,20,60,.25);
  opacity:0;pointer-events:none;z-index:200;
  transition:opacity .3s,transform .3s;
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ============ 页脚 ============ */
.footer{border-top:1px solid var(--line);padding:34px 0;background:var(--bg)}
.f-in{display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--ink-2)}
.f-brand{display:flex;align-items:center;gap:9px;font-weight:700;color:var(--ink)}
.f-brand .logo-dot{width:9px;height:9px;border-radius:3px}

/* ============ 4. 人机交互：响应式（随视口宽度重排） ============ */
@media (max-width:1024px){
  .wrap{padding:0 32px}
  .hero h1{font-size:68px}
  .grid2{grid-template-columns:1fr 1fr}
  .gb-grid{grid-template-columns:1fr}
}
@media (max-width:720px){
  .wrap{padding:0 22px}
  section{padding:68px 0}
  .nav-in{height:62px}
  .nav-links{display:flex;gap:14px;font-size:14px}
  .nav-links a{padding:13px 8px}
  .sid-pill{display:none}
  .page-head{padding:76px 0 0}
  .hero{padding:76px 0 0}
  .hero h1{font-size:42px;letter-spacing:-1.5px;gap:12px;margin:22px 0 4px}
  .sid-badge{font-size:12px;padding:6px 13px}
  .hero .role{font-size:19px}
  .hero .lead{font-size:15px;margin-top:18px}
  .hero-cta{flex-direction:column;align-items:stretch;margin-top:30px;padding:0 8px}
  .stats{grid-template-columns:repeat(2,1fr);row-gap:26px;margin-top:56px}
  .stat+.stat::before{display:none}
  .stat b{font-size:34px}
  .sec-title{font-size:31px;letter-spacing:-.6px}
  .sec-sub{font-size:15px}
  .grid2,.skill-grid{grid-template-columns:1fr;gap:16px;margin-top:36px}
  .card{padding:26px 24px}
  .proj .body{padding:22px 22px 26px}
  .contact-card{padding:52px 24px;border-radius:28px}
  .contact-card h2{font-size:28px}
  .contact-actions{flex-direction:column;align-items:stretch;margin-top:30px}
  .gb-grid{margin-top:36px}
  .panel{padding:26px 22px}
  .f-in{flex-direction:column;gap:12px;text-align:center}
  input,textarea{font-size:16px}
}

/* 减少动态效果偏好：禁用动画与过渡 */
@media (prefers-reduced-motion:reduce){
  .aurora-blob{animation:none !important}
  .js .reveal{opacity:1 !important;transform:none !important;transition:none !important}
  .view.active{animation:none !important}
  *{transition:none !important}
}
/* （注：内容由AI生成） */