/* ==========================================================================
   lxx.cq.cn — 个人网站样式表（纯静态，无依赖）
   ========================================================================== */

:root{
  --bg:#0b1020;
  --bg-2:#101728;
  --card:#141c31;
  --card-2:#18213a;
  --fg:#e8ecf5;
  --mut:#8f9bb3;
  --dim:#5f6b85;
  --acc:#4f8cff;
  --acc-2:#7aa8ff;
  --acc-3:#8f6bff;
  --acc-4:#ff7ac6;
  --ok:#37d67a;
  --border:rgba(255,255,255,.08);
  --border-2:rgba(255,255,255,.14);
  --radius:16px;
  --radius-sm:10px;
  --maxw:1080px;
  --shadow:0 20px 60px rgba(0,0,0,.45);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  margin:0;
  min-height:100vh;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--fg);
  background:
    radial-gradient(1100px 560px at 15% -5%, #1b2747 0%, transparent 60%),
    radial-gradient(900px 500px at 100% 0%, #241b3f 0%, transparent 55%),
    var(--bg);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;display:block}
a{color:var(--acc-2);text-decoration:none;transition:color .18s ease}
a:hover{color:#fff}
::selection{background:rgba(79,140,255,.4);color:#fff}

.container{width:min(var(--maxw),92vw);margin:0 auto}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  background:rgba(11,16,32,.68);
  border-bottom:1px solid var(--border);
  transition:background .25s ease;
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;height:66px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-weight:700;font-size:18px;letter-spacing:.3px;color:#fff;
}
.brand .logo{
  width:30px;height:30px;border-radius:9px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--acc),var(--acc-3));
  color:#fff;font-size:15px;font-weight:800;
  box-shadow:0 6px 18px rgba(79,140,255,.35);
  transition:transform .25s ease;
}
.brand:hover .logo{transform:rotate(-8deg) scale(1.06)}
.brand small{color:var(--mut);font-weight:500;font-size:12px}

.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav-links a{
  position:relative;
  display:block;padding:8px 14px;border-radius:9px;
  color:var(--mut);font-size:14.5px;font-weight:500;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-links a.active{color:#fff;background:rgba(79,140,255,.16)}

/* ---------- 通用块 ---------- */
main{padding:44px 0 70px}

.section{margin-bottom:72px;scroll-margin-top:90px}
.section-head{
  display:flex;align-items:baseline;justify-content:space-between;
  gap:16px;margin-bottom:26px;flex-wrap:wrap;
}
.section-head h2{
  margin:0;font-size:23px;letter-spacing:.3px;
  display:flex;align-items:center;gap:10px;
}
.section-head h2::before{
  content:"";width:4px;height:20px;border-radius:2px;
  background:linear-gradient(180deg,var(--acc),var(--acc-3));
}
.section-head h2 .num{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:13px;color:var(--acc);font-weight:600;
  letter-spacing:1px;
}
.section-head .more{font-size:13.5px;color:var(--mut)}
.section-head .more:hover{color:#fff}

.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:2px;text-transform:uppercase;
  color:var(--acc-2);font-weight:600;margin-bottom:12px;
}

/* ---------- 滚动渐入 ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- 首页 Hero（个人主页版） ---------- */
.hero{
  position:relative;overflow:hidden;
  border:1px solid var(--border);border-radius:24px;
  background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.01) 60%);
  box-shadow:var(--shadow);
  padding:64px 48px 52px;
  margin-bottom:64px;
}
.hero::before{
  content:"";position:absolute;left:-140px;bottom:-160px;width:380px;height:380px;
  background:radial-gradient(circle,rgba(143,107,255,.28),transparent 70%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;
  background:radial-gradient(circle,rgba(79,140,255,.32),transparent 70%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1;display:flex;gap:40px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.hero-text{flex:1 1 520px;min-width:0}

.hero .status-pill{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;color:var(--ok);
  background:rgba(55,214,122,.1);border:1px solid rgba(55,214,122,.3);
  padding:5px 13px;border-radius:999px;margin-bottom:18px;
}
.hero .status-pill .dot{
  width:7px;height:7px;border-radius:50%;background:var(--ok);
  box-shadow:0 0 0 0 rgba(55,214,122,.6);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(55,214,122,.5)}
  70%{box-shadow:0 0 0 8px rgba(55,214,122,0)}
  100%{box-shadow:0 0 0 0 rgba(55,214,122,0)}
}
@media (prefers-reduced-motion:reduce){.hero .status-pill .dot{animation:none}}

.hero h1{
  margin:0 0 16px;font-size:clamp(32px,5.4vw,52px);line-height:1.15;letter-spacing:.5px;
}
.hero h1 .grad{
  background:linear-gradient(120deg,var(--acc),var(--acc-3) 55%,var(--acc-4));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero .typing-line{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:clamp(15px,2.2vw,18px);color:var(--acc-2);
  margin:0 0 14px;min-height:1.6em;
}
.hero .typing-line .caret{
  display:inline-block;width:2px;height:1.1em;background:var(--acc-2);
  vertical-align:text-bottom;margin-left:2px;
  animation:blink 1s steps(1) infinite;
}
@keyframes blink{50%{opacity:0}}
@media (prefers-reduced-motion:reduce){.hero .typing-line .caret{animation:none}}

.hero p.lead{max-width:600px;color:#c2cde3;font-size:17px;margin:0 0 28px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap}

/* Hero 右侧头像卡 */
.hero-side{flex:0 0 auto}
.hero-avatar{
  position:relative;width:132px;height:132px;border-radius:36px;
  display:grid;place-items:center;
  font-size:52px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--acc),var(--acc-3));
  box-shadow:0 18px 44px rgba(79,140,255,.4);
}
.hero-avatar::after{
  content:"";position:absolute;inset:-6px;border-radius:42px;
  border:2px dashed rgba(122,168,255,.4);
  animation:spin 26s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.hero-avatar::after{animation:none}}
.hero-avatar small{
  position:absolute;bottom:-10px;left:50%;transform:translateX(-50%);
  font-size:11px;font-weight:600;color:var(--mut);
  background:var(--bg-2);border:1px solid var(--border-2);
  padding:2px 10px;border-radius:999px;white-space:nowrap;
}

/* ---------- 统计条 ---------- */
.stats{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:14px;margin-top:38px;
}
.stat{
  position:relative;overflow:hidden;
  border:1px solid var(--border);border-radius:var(--radius-sm);
  background:rgba(255,255,255,.03);padding:16px 18px;
  transition:border-color .2s ease;
}
.stat:hover{border-color:rgba(79,140,255,.4)}
.stat b{display:block;font-size:26px;font-weight:700;color:#fff;line-height:1.2;font-variant-numeric:tabular-nums}
.stat span{font-size:12.5px;color:var(--mut)}

/* ---------- 社交链接 ---------- */
.socials{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.socials a{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:11px;font-size:14px;font-weight:500;color:var(--fg);
  background:rgba(255,255,255,.045);border:1px solid var(--border-2);
  transition:all .18s ease;
}
.socials a:hover{
  color:#fff;border-color:rgba(79,140,255,.5);
  background:rgba(79,140,255,.12);transform:translateY(-2px);
}
.socials .sv{font-style:normal}

/* ---------- 卡片网格 ---------- */
.grid{display:grid;gap:18px}
.grid.cols-3{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.grid.cols-2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}

.card{
  position:relative;
  border:1px solid var(--border);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.012));
  padding:24px;transition:all .22s ease;
}
.card:hover{
  border-color:rgba(79,140,255,.45);
  transform:translateY(-4px);
  box-shadow:0 18px 40px rgba(0,0,0,.35);
}
.card h3{margin:0 0 8px;font-size:17.5px;color:#fff}
.card p{margin:0;color:var(--mut);font-size:14.5px}
.card .icon{
  width:40px;height:40px;border-radius:11px;display:grid;place-items:center;
  margin-bottom:14px;font-size:19px;
  background:rgba(79,140,255,.14);border:1px solid rgba(79,140,255,.25);
}

/* ---------- 文章列表 ---------- */
.post-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.post-item{
  display:flex;gap:18px;align-items:baseline;
  padding:16px 18px;border-radius:var(--radius-sm);
  border:1px solid transparent;transition:all .18s ease;
}
.post-item:hover{background:rgba(255,255,255,.035);border-color:var(--border)}
.post-item .date{
  flex:0 0 96px;font-size:13px;color:var(--dim);
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;
}
.post-item .body{flex:1;min-width:0}
.post-item .body a{font-size:16px;font-weight:600;color:var(--fg)}
.post-item .body a:hover{color:var(--acc-2)}
.post-item .body p{margin:4px 0 0;font-size:13.5px;color:var(--mut)}
.post-item .tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}

.tag{
  font-size:11.5px;padding:2px 9px;border-radius:999px;
  color:var(--acc-2);background:rgba(79,140,255,.12);
  border:1px solid rgba(79,140,255,.22);
}

/* ---------- 关于页 / 个人主页段落 ---------- */
.two-col{
  display:grid;grid-template-columns:1.6fr .9fr;gap:34px;align-items:start;
}
@media(max-width:820px){.two-col{grid-template-columns:1fr}}

.profile-card{
  border:1px solid var(--border);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  padding:26px;text-align:center;
}
.avatar{
  width:96px;height:96px;border-radius:50%;margin:0 auto 14px;
  display:grid;place-items:center;font-size:34px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--acc),var(--acc-3));
  box-shadow:0 12px 30px rgba(79,140,255,.35);
}
.profile-card h3{margin:0 0 4px;color:#fff;font-size:19px}
.profile-card .role{color:var(--acc-2);font-size:13.5px;margin-bottom:14px}
.profile-card .meta{list-style:none;margin:0;padding:14px 0 0;border-top:1px solid var(--border);font-size:13.5px}
.profile-card .meta li{display:flex;justify-content:space-between;gap:10px;padding:6px 0;color:var(--mut)}
.profile-card .meta li b{color:var(--fg);font-weight:500}

.prose{max-width:760px}
.prose h2{font-size:20px;margin:0 0 14px;display:flex;align-items:center;gap:10px}
.prose h2::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--acc)}
.prose h3{font-size:16.5px;color:#fff;margin:26px 0 10px}
.prose p{color:#c2cde3;margin:0 0 14px}
.prose ul{color:#c2cde3;padding-left:20px;margin:0 0 14px}
.prose li{margin:5px 0}
.prose code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13.5px;
  background:rgba(255,255,255,.07);padding:2px 6px;border-radius:5px;color:var(--acc-2);
}

/* 技能条 */
.skill{margin:0 0 14px}
.skill .row{display:flex;justify-content:space-between;font-size:13.5px;color:var(--mut);margin-bottom:6px}
.skill .row b{color:var(--fg);font-weight:500}
.bar{height:7px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.bar > i{
  display:block;height:100%;border-radius:999px;width:0;
  background:linear-gradient(90deg,var(--acc),var(--acc-3));
  transition:width 1s cubic-bezier(.22,1,.36,1);
}

/* 兴趣标签墙 */
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chips span{
  padding:6px 14px;border-radius:999px;font-size:13px;color:var(--fg);
  background:rgba(255,255,255,.05);border:1px solid var(--border-2);
  transition:all .18s ease;
}
.chips span:hover{border-color:rgba(79,140,255,.5);background:rgba(79,140,255,.12);transform:translateY(-2px)}

/* 时间线 */
.timeline{list-style:none;margin:0;padding:0 0 0 22px;border-left:2px solid var(--border);position:relative}
.timeline li{position:relative;padding:0 0 26px 4px}
.timeline li::before{
  content:"";position:absolute;left:-29px;top:6px;width:11px;height:11px;border-radius:50%;
  background:var(--acc);box-shadow:0 0 0 4px rgba(79,140,255,.18);
}
.timeline .when{font-size:12.5px;color:var(--acc-2);font-weight:600;letter-spacing:.4px}
.timeline .what{font-size:15.5px;color:#fff;font-weight:600;margin:2px 0 3px}
.timeline .desc{font-size:13.5px;color:var(--mut);margin:0}

/* ---------- 作品页 ---------- */
.work-card{display:flex;flex-direction:column;height:100%}
.work-card .thumb{
  height:132px;border-radius:var(--radius-sm);margin-bottom:16px;
  display:grid;place-items:center;font-size:34px;
  background:linear-gradient(135deg,rgba(79,140,255,.22),rgba(143,107,255,.18));
  border:1px solid var(--border);
}
.work-card .stack{display:flex;gap:6px;flex-wrap:wrap;margin-top:14px}
.work-card .links{display:flex;gap:14px;margin-top:16px;font-size:13.5px}

/* ---------- 联系页 / 主页联系块 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:34px;align-items:start}
@media(max-width:820px){.contact-grid{grid-template-columns:1fr}}
.contact-list{list-style:none;margin:0;padding:0}
.contact-list li{
  display:flex;gap:14px;align-items:center;
  padding:14px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);
  background:rgba(255,255,255,.03);margin-bottom:12px;
  transition:all .18s ease;
}
.contact-list li:hover{border-color:rgba(79,140,255,.4);transform:translateY(-2px)}
.contact-list .ic{
  width:38px;height:38px;flex:0 0 38px;border-radius:10px;display:grid;place-items:center;
  background:rgba(79,140,255,.14);border:1px solid rgba(79,140,255,.25);font-size:17px;
}
.contact-list b{display:block;font-size:14.5px;color:#fff;font-weight:600}
.contact-list span{font-size:13px;color:var(--mut)}

.form{display:grid;gap:14px}
.field label{display:block;font-size:13.5px;color:var(--mut);margin-bottom:6px}
.field input,.field textarea{
  width:100%;padding:11px 14px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.04);border:1px solid var(--border-2);
  color:var(--fg);font:inherit;font-size:14.5px;transition:border-color .18s ease;
}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--acc);background:rgba(79,140,255,.06);
}
.field textarea{min-height:132px;resize:vertical}

.notice{
  border:1px dashed var(--border-2);border-radius:var(--radius-sm);
  padding:14px 16px;font-size:13.5px;color:var(--mut);background:rgba(255,255,255,.02);
}

/* ---------- 文章详情 ---------- */
.article{max-width:780px;margin:0 auto}
.article-head{margin-bottom:28px;padding-bottom:22px;border-bottom:1px solid var(--border)}
.article-head h1{margin:0 0 10px;font-size:clamp(26px,4vw,34px);line-height:1.25}
.article-head .meta{display:flex;gap:16px;flex-wrap:wrap;color:var(--dim);font-size:13.5px}
.article-body{color:#c9d4ea;font-size:16px}
.article-body h2{color:#fff;font-size:21px;margin:34px 0 12px}
.article-body h3{color:#fff;font-size:17.5px;margin:26px 0 10px}
.article-body p{margin:0 0 16px}
.article-body ul{padding-left:22px}
.article-body li{margin:6px 0}
.article-body blockquote{
  margin:20px 0;padding:12px 18px;border-left:3px solid var(--acc);
  background:rgba(79,140,255,.07);border-radius:0 8px 8px 0;color:#d5deef;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;
  background:rgba(255,255,255,.08);padding:2px 6px;border-radius:5px;color:var(--acc-2);
}
.article-body pre{
  background:#0d1322;border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:16px 18px;overflow:auto;font-size:13.5px;line-height:1.6;
}
.article-body pre code{background:none;padding:0;color:#cdd8ee}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:11px;font-size:14.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .18s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--acc),#6f8dff);color:#fff;
  box-shadow:0 10px 26px rgba(79,140,255,.35);
}
.btn-primary:hover{filter:brightness(1.08);color:#fff;transform:translateY(-1px)}
.btn-ghost{
  background:rgba(255,255,255,.04);border-color:var(--border-2);color:var(--fg);
}
.btn-ghost:hover{background:rgba(255,255,255,.09);color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--border);
  padding:30px 0 40px;margin-top:20px;
  color:var(--mut);font-size:13.5px;
}
.footer-inner{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-links a{color:var(--mut)}
.footer-links a:hover{color:#fff}

/* ---------- 面包屑 ---------- */
.crumbs{font-size:13.5px;color:var(--dim);margin-bottom:22px}
.crumbs a{color:var(--mut)}
.crumbs a:hover{color:#fff}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:60;
  width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(20,28,49,.85);border:1px solid var(--border-2);
  color:var(--acc-2);font-size:18px;cursor:pointer;
  backdrop-filter:blur(8px);
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:all .25s ease;
}
.to-top.show{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{color:#fff;border-color:rgba(79,140,255,.5)}

/* ---------- 移动端 ---------- */
@media(max-width:720px){
  .nav{height:auto;padding:12px 0;flex-direction:column;align-items:flex-start;gap:10px}
  .nav-links{flex-wrap:wrap;gap:2px}
  .nav-links a{padding:7px 11px;font-size:14px}
  main{padding:28px 0 50px}
  .hero{padding:40px 24px;border-radius:18px}
  .hero-inner{gap:26px}
  .hero-side{order:-1}
  .hero-avatar{width:104px;height:104px;font-size:40px;border-radius:28px}
  .post-item{flex-direction:column;gap:6px}
  .post-item .date{flex:none}
}