/* ============================================================
   姚伟 · 个人简历网站  —  暗黑科技风
   ============================================================ */

:root{
  --bg-0:#05070d;
  --bg-1:#080b14;
  --bg-2:#0d111c;
  --panel:rgba(15,20,33,.72);
  --panel-solid:#0f1421;
  --border:rgba(120,160,220,.14);
  --border-hi:rgba(90,220,255,.45);

  --txt: #e8eefc;
  --txt-2:#9aa8c4;
  --txt-3:#5f6d8a;

  --cyan:#3ad6ff;
  --blue:#4a7cff;
  --violet:#9b5cff;
  --green:#2ee6a8;
  --amber:#ffb547;

  --accent: var(--cyan);
  --glow: 0 0 24px rgba(58,214,255,.35);
  --radius: 14px;
  --maxw: 1180px;

  --font: 'Noto Sans SC', -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', 'Cascadia Code', Consolas, monospace;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:80px;}

body{
  font-family:var(--font);
  background:var(--bg-0);
  color:var(--txt);
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

body.modal-open{overflow:hidden;}

/* ---------- 开场加载层 ---------- */
#loader{
  position:fixed;inset:0;z-index:999;background:var(--bg-0);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:26px;
  transition:opacity .6s ease,visibility .6s;
}
#loader.done{opacity:0;visibility:hidden;}
.loader-logo{
  font-family:var(--mono);font-size:44px;font-weight:700;
  background:linear-gradient(100deg,var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  text-shadow:0 0 40px rgba(58,214,255,.3);
}
.loader-bar{
  width:220px;height:2px;background:rgba(120,160,220,.15);border-radius:2px;overflow:hidden;
}
.loader-bar i{
  display:block;height:100%;width:0%;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  box-shadow:0 0 12px rgba(58,214,255,.8);
  transition:width .18s ease;
}
.loader-text{
  font-family:var(--mono);font-size:11px;color:var(--txt-3);letter-spacing:2px;
}

/* ---------- 自定义光标 ---------- */
@media (hover:hover) and (pointer:fine){
  .cursor-dot,.cursor-ring{
    position:fixed;top:0;left:0;z-index:998;pointer-events:none;border-radius:50%;
    transform:translate(-50%,-50%);will-change:transform;
  }
  .cursor-dot{width:6px;height:6px;background:var(--cyan);box-shadow:0 0 10px rgba(58,214,255,.9);}
  .cursor-ring{
    width:34px;height:34px;border:1.5px solid rgba(58,214,255,.5);
    transition:width .25s,height .25s,border-color .25s,background .25s;
  }
  body.cursor-hover .cursor-ring{
    width:52px;height:52px;border-color:rgba(155,92,255,.8);
    background:rgba(155,92,255,.08);
  }
}

/* ---------- 极光流动 ---------- */
@keyframes drift-a{
  0%,100%{transform:translate(0,0) scale(1);}
  50%{transform:translate(140px,90px) scale(1.18);}
}
@keyframes drift-b{
  0%,100%{transform:translate(0,0) scale(1);}
  50%{transform:translate(-160px,-70px) scale(1.22);}
}
.glow-a{animation:drift-a 18s ease-in-out infinite;}
.glow-b{animation:drift-b 22s ease-in-out infinite;}

/* ---------- 标题解码闪烁 ---------- */
.section-title.scrambling{color:var(--txt);}

/* ---------- 按钮磁吸 ---------- */
.btn{will-change:transform;}

/* ---------- 项目卡 3D 倾斜（见文件末尾） ---------- */

/* ---------- 技术跑马灯 ---------- */
.tech-marquee{
  max-width:var(--maxw);margin:26px auto 0;width:100%;
  overflow:hidden;position:relative;z-index:5;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
}
.marquee-track{
  display:flex;gap:14px;width:max-content;
  animation:marquee 32s linear infinite;
}
.marquee-track:hover{animation-play-state:paused;}
@keyframes marquee{to{transform:translateX(-50%);}}
.marquee-track span{
  font-family:var(--mono);font-size:12px;color:var(--txt-3);letter-spacing:.6px;
  padding:6px 14px;border-radius:100px;border:1px solid var(--border);
  background:rgba(255,255,255,.025);white-space:nowrap;
}

/* ---------- 背景层 ---------- */
#bg-canvas{
  position:fixed;inset:0;z-index:0;
  width:100%;height:100%;
  opacity:.85;
  pointer-events:none;
}
.bg-grid{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  background-image:
    linear-gradient(rgba(90,140,220,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90,140,220,.055) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 65% at 50% 12%, #000 20%, transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 65% at 50% 12%, #000 20%, transparent 78%);
}
.bg-glow{
  position:fixed;z-index:0;pointer-events:none;
  border-radius:50%;filter:blur(120px);opacity:.32;
}
.glow-a{width:620px;height:620px;background:radial-gradient(circle,#1f6dff,transparent 68%);top:-220px;left:-160px;}
.glow-b{width:560px;height:560px;background:radial-gradient(circle,#7a2bff,transparent 68%);top:38%;right:-200px;}
.bg-noise{
  position:fixed;inset:0;z-index:2;pointer-events:none;opacity:.028;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 40px;
  transition:all .35s cubic-bezier(.4,0,.2,1);
}
.nav.scrolled{
  padding:11px 40px;
  background:rgba(6,9,16,.82);
  backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid var(--border);
}
.nav-logo{
  font-family:var(--mono);font-size:19px;font-weight:700;
  text-decoration:none;color:var(--txt);letter-spacing:.5px;
  display:flex;align-items:center;gap:1px;
}
.logo-bracket{color:var(--cyan);text-shadow:var(--glow);}
.logo-text{
  background:linear-gradient(100deg,var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.nav-links{display:flex;gap:6px;}
.nav-links a{
  position:relative;
  color:var(--txt-2);text-decoration:none;font-size:14px;font-weight:500;
  padding:8px 15px;border-radius:9px;
  transition:all .25s;
}
.nav-links a::before{
  content:attr(data-idx);
  font-family:var(--mono);font-size:10px;color:var(--cyan);
  opacity:0;margin-right:6px;transition:.25s;
}
.nav-links a:hover,.nav-links a.active{
  color:var(--txt);background:rgba(58,214,255,.08);
}
.nav-links a:hover::before,.nav-links a.active::before{opacity:1;}
.nav-links a.active{box-shadow:inset 0 -2px 0 var(--cyan);}

.nav-toggle{
  display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;
}
.nav-toggle span{
  display:block;width:22px;height:2px;background:var(--txt);border-radius:2px;transition:.3s;
}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- 滚动进度 ---------- */
.scroll-progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:110;background:transparent;}
.scroll-progress-bar{
  height:100%;width:0%;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  box-shadow:0 0 12px rgba(58,214,255,.7);
  transition:width .1s linear;
}

/* ---------- 通用 ---------- */
.container{max-width:var(--maxw);margin:0 auto;padding:0 40px;position:relative;z-index:5;}
.section{padding:110px 0;position:relative;z-index:5;}
.section-head{margin-bottom:56px;position:relative;}
.section-idx{
  font-family:var(--mono);font-size:13px;color:var(--cyan);letter-spacing:2px;
  margin-bottom:10px;opacity:.9;
}
.section-idx::after{
  content:'';display:inline-block;width:52px;height:1px;
  background:linear-gradient(90deg,var(--cyan),transparent);
  margin-left:12px;vertical-align:middle;
}
.section-title{
  font-size:clamp(28px,4vw,42px);font-weight:900;letter-spacing:-.5px;line-height:1.2;
}
.section-title .dot{color:var(--cyan);text-shadow:var(--glow);}
.section-sub{
  font-family:var(--mono);font-size:12px;color:var(--txt-3);
  letter-spacing:3px;margin-top:8px;text-transform:uppercase;
}

/* 入场动画 */
[data-reveal]{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1);}
[data-reveal].revealed{opacity:1;transform:none;}

/* ---------- HERO ---------- */
.hero{
  min-height:100vh;display:flex;flex-direction:column;justify-content:center;
  padding:130px 40px 60px;position:relative;z-index:5;
}
.hero-inner{max-width:var(--maxw);margin:0 auto;width:100%;}

.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:11.5px;letter-spacing:1.4px;color:var(--txt-2);
  padding:7px 15px;border-radius:100px;
  background:rgba(58,214,255,.06);border:1px solid var(--border);
  margin-bottom:26px;
}
.pulse-dot{
  width:7px;height:7px;border-radius:50%;background:var(--green);
  box-shadow:0 0 0 0 rgba(46,230,168,.6);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(46,230,168,.6);}
  70%{box-shadow:0 0 0 10px rgba(46,230,168,0);}
  100%{box-shadow:0 0 0 0 rgba(46,230,168,0);}
}

.hero-title{font-weight:900;line-height:1.08;margin-bottom:24px;}
.hero-title .line{display:block;}
.hero-title .line:first-child{
  font-size:clamp(56px,11vw,124px);letter-spacing:-3px;
}
.hero-title-sub{
  font-size:clamp(19px,3vw,34px);font-weight:400;
  color:var(--txt-2);margin-top:12px;font-family:var(--mono);
  letter-spacing:-.5px;min-height:1.5em;
}
.type-wrap{display:inline-flex;align-items:baseline;}
#typewriter{color:var(--cyan);font-weight:500;}
.caret{color:var(--cyan);animation:blink 1s step-end infinite;font-weight:300;}
@keyframes blink{0%,100%{opacity:1;}50%{opacity:0;}}

/* Glitch */
.glitch{
  position:relative;display:inline-block;
  background:linear-gradient(103deg,#fff 6%,var(--cyan) 38%,var(--violet) 74%,#fff 100%);
  background-size:200% auto;
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  animation:shine 7s linear infinite;
}
@keyframes shine{to{background-position:200% center;}}
.glitch::before,.glitch::after{
  content:attr(data-text);position:absolute;top:0;left:0;
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  background:none;opacity:0;
}
.glitch:hover::before{
  opacity:.85;color:var(--cyan);-webkit-text-fill-color:var(--cyan);
  animation:glitch-a .32s steps(2) 2;
}
.glitch:hover::after{
  opacity:.85;color:var(--violet);-webkit-text-fill-color:var(--violet);
  animation:glitch-b .32s steps(2) 2;
}
@keyframes glitch-a{0%{transform:translate(0);}50%{transform:translate(-3px,1px);}100%{transform:translate(0);}}
@keyframes glitch-b{0%{transform:translate(0);}50%{transform:translate(3px,-1px);}100%{transform:translate(0);}}

.hero-desc{
  font-size:clamp(15px,1.7vw,19px);color:var(--txt-2);
  max-width:760px;margin-bottom:30px;line-height:1.85;
}
.hl{color:var(--cyan);font-weight:500;}

.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:38px;}
.meta-item{
  font-size:13px;color:var(--txt-2);padding:8px 14px;
  border-radius:9px;background:var(--panel);border:1px solid var(--border);
  backdrop-filter:blur(8px);
}
.meta-item i{
  font-style:normal;color:var(--txt-3);font-family:var(--mono);
  font-size:11px;margin-right:8px;letter-spacing:.5px;
}

.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 28px;border-radius:11px;font-size:14.5px;font-weight:600;
  text-decoration:none;cursor:pointer;border:1px solid transparent;
  transition:all .28s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;
}
.btn svg{width:17px;height:17px;transition:transform .28s;}
.btn-primary{
  background:linear-gradient(100deg,var(--cyan),var(--blue));
  color:#040810;
  box-shadow:0 6px 28px rgba(58,214,255,.28);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 10px 38px rgba(58,214,255,.48);
}
.btn-primary:hover svg{transform:translateX(4px);}
.btn-ghost{
  background:var(--panel);color:var(--txt);
  border-color:var(--border);backdrop-filter:blur(8px);
}
.btn-ghost:hover{
  border-color:var(--border-hi);background:rgba(58,214,255,.08);
  transform:translateY(-2px);
}

.hero-stats{
  max-width:var(--maxw);margin:78px auto 0;width:100%;
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--border);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;backdrop-filter:blur(10px);
}
.stat{
  background:rgba(9,13,22,.72);padding:26px 22px;text-align:center;
  transition:background .3s;
}
.stat:hover{background:rgba(58,214,255,.07);}
.stat-num{
  font-family:var(--mono);font-size:38px;font-weight:700;line-height:1;
  background:linear-gradient(100deg,var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  margin-bottom:9px;
}
.stat-label{font-size:12.5px;color:var(--txt-3);letter-spacing:.6px;}

.scroll-hint{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  text-decoration:none;
}
.mouse{
  display:block;width:24px;height:38px;border:1.6px solid rgba(154,168,196,.42);
  border-radius:13px;position:relative;
}
.wheel{
  position:absolute;top:7px;left:50%;transform:translateX(-50%);
  width:3px;height:7px;border-radius:2px;background:var(--cyan);
  animation:wheel 1.7s ease-in-out infinite;
}
@keyframes wheel{0%{opacity:0;transform:translate(-50%,0);}40%{opacity:1;}100%{opacity:0;transform:translate(-50%,12px);}}

/* ---------- 关于 ---------- */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:start;}
.about-text p{color:var(--txt-2);margin-bottom:20px;font-size:15.5px;}
.about-text strong{color:var(--cyan);font-weight:600;}

.about-card{
  background:var(--panel-solid);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;
  box-shadow:0 24px 60px rgba(0,0,0,.5);
  position:relative;
}
.about-card::before{
  content:'';position:absolute;inset:0;border-radius:var(--radius);
  padding:1px;background:linear-gradient(140deg,rgba(58,214,255,.5),transparent 42%,rgba(155,92,255,.42));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.card-head{
  display:flex;align-items:center;gap:11px;padding:12px 16px;
  background:rgba(255,255,255,.025);border-bottom:1px solid var(--border);
}
.dot-group{display:flex;gap:6px;}
.dot-group i{width:10px;height:10px;border-radius:50%;display:block;}
.dot-group i:nth-child(1){background:#ff5f57;}
.dot-group i:nth-child(2){background:#febc2e;}
.dot-group i:nth-child(3){background:#28c840;}
.card-file{font-family:var(--mono);font-size:11.5px;color:var(--txt-3);letter-spacing:.5px;}
.code-block{
  padding:20px 18px;font-family:var(--mono);font-size:13px;line-height:1.95;
  color:var(--txt-2);overflow-x:auto;white-space:pre;
}
.c-key{color:#7fd1ff;}
.c-str{color:#8ee6a8;}
.c-num{color:var(--amber);}
.c-bool{color:var(--violet);}
.c-cmt{color:var(--txt-3);font-style:italic;}

/* ---------- 技能 ---------- */
.skill-groups{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px;
}
.skill-card{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 24px;backdrop-filter:blur(12px);
  transition:all .35s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;
}
.skill-card::after{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  transform:scaleX(0);transform-origin:left;transition:transform .45s;
}
.skill-card:hover{
  border-color:var(--border-hi);transform:translateY(-5px);
  box-shadow:0 20px 48px rgba(0,0,0,.46),0 0 0 1px rgba(58,214,255,.13);
}
.skill-card:hover::after{transform:scaleX(1);}
.skill-card-accent{background:rgba(58,214,255,.045);border-color:rgba(58,214,255,.24);}

.skill-icon{
  width:42px;height:42px;border-radius:11px;display:grid;place-items:center;
  margin-bottom:16px;border:1px solid var(--border);
}
.skill-icon svg{width:22px;height:22px;}
.icon-backend{background:rgba(58,214,255,.1);color:var(--cyan);}
.icon-frontend{background:rgba(46,230,168,.1);color:var(--green);}
.icon-iot{background:rgba(255,181,71,.1);color:var(--amber);}
.icon-desktop{background:rgba(155,92,255,.1);color:var(--violet);}
.icon-db{background:rgba(74,124,255,.1);color:var(--blue);}
.icon-core{background:rgba(58,214,255,.14);color:var(--cyan);}

.skill-card h3{font-size:16.5px;font-weight:700;margin-bottom:15px;letter-spacing:.2px;}
.tags{display:flex;flex-wrap:wrap;gap:8px;}
.tags span{
  font-family:var(--mono);font-size:11.5px;
  padding:5px 11px;border-radius:7px;
  background:rgba(255,255,255,.038);color:var(--txt-2);
  border:1px solid var(--border);transition:.24s;white-space:nowrap;
}
.tags span:hover{
  background:rgba(58,214,255,.13);color:var(--cyan);
  border-color:var(--border-hi);transform:translateY(-2px);
}

/* ---------- 项目 ---------- */
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:34px;}
.filter-btn{
  font-family:var(--font);font-size:13.5px;font-weight:500;
  padding:9px 20px;border-radius:9px;cursor:pointer;
  background:var(--panel);color:var(--txt-2);
  border:1px solid var(--border);transition:.26s;
}
.filter-btn:hover{color:var(--txt);border-color:var(--border-hi);}
.filter-btn.active{
  background:linear-gradient(100deg,var(--cyan),var(--blue));
  color:#040810;border-color:transparent;font-weight:600;
  box-shadow:0 5px 22px rgba(58,214,255,.3);
}

.project-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:20px;
}
.project-card{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 24px;cursor:pointer;position:relative;overflow:hidden;
  backdrop-filter:blur(12px);
  transition:all .38s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;
}
.project-card::before{
  content:'';position:absolute;inset:0;opacity:0;transition:opacity .38s;
  background:radial-gradient(600px circle at var(--mx,50%) var(--my,50%),rgba(58,214,255,.09),transparent 42%);
  pointer-events:none;
}
.project-card:hover::before{opacity:1;}
.project-card:hover{
  transform:translateY(-6px);border-color:var(--border-hi);
  box-shadow:0 24px 56px rgba(0,0,0,.5);
}
.project-card.hidden{display:none;}

.pc-top{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:8px;}
.pc-name{font-size:17.5px;font-weight:700;letter-spacing:.2px;line-height:1.4;}
.pc-badge{
  flex-shrink:0;font-family:var(--mono);font-size:10.5px;letter-spacing:1px;
  padding:4px 10px;border-radius:6px;text-transform:uppercase;
}
.badge-web{background:rgba(58,214,255,.12);color:var(--cyan);border:1px solid rgba(58,214,255,.28);}
.badge-iot{background:rgba(255,181,71,.12);color:var(--amber);border:1px solid rgba(255,181,71,.28);}
.badge-tool{background:rgba(155,92,255,.12);color:var(--violet);border:1px solid rgba(155,92,255,.28);}

.pc-time{
  font-family:var(--mono);font-size:11.5px;color:var(--txt-3);
  margin-bottom:14px;letter-spacing:.4px;
}
.pc-desc{
  font-size:14px;color:var(--txt-2);line-height:1.78;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.pc-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:18px;}
.pc-tags span{
  font-family:var(--mono);font-size:10.5px;padding:3.5px 9px;border-radius:6px;
  background:rgba(255,255,255,.04);color:var(--txt-3);border:1px solid var(--border);
}
.pc-more{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--cyan);font-weight:500;
  font-family:var(--mono);letter-spacing:.4px;
}
.pc-more svg{width:14px;height:14px;transition:transform .3s;}
.project-card:hover .pc-more svg{transform:translateX(4px);}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:'';position:absolute;left:7px;top:8px;bottom:8px;width:1.5px;
  background:linear-gradient(180deg,var(--cyan),var(--violet),transparent);
  opacity:.42;
}
.tl-item{position:relative;padding-bottom:42px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:-34px;top:7px;
  width:15px;height:15px;border-radius:50%;
  background:var(--bg-0);border:2px solid var(--cyan);
  box-shadow:0 0 0 4px rgba(58,214,255,.1),0 0 14px rgba(58,214,255,.5);
}
.tl-time{
  font-family:var(--mono);font-size:12.5px;color:var(--cyan);
  letter-spacing:.6px;margin-bottom:9px;
}
.tl-body{
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px 24px;backdrop-filter:blur(12px);transition:.3s;
}
.tl-body:hover{border-color:var(--border-hi);transform:translateX(4px);}
.tl-body h3{font-size:16.5px;font-weight:700;margin-bottom:12px;line-height:1.5;}
.tl-role{
  font-size:12.5px;font-weight:500;color:var(--txt-3);
  font-family:var(--mono);margin-left:8px;
}
.tl-body ul{list-style:none;}
.tl-body li{
  position:relative;padding-left:20px;margin-bottom:9px;
  font-size:14px;color:var(--txt-2);line-height:1.75;
}
.tl-body li:last-child{margin-bottom:0;}
.tl-body li::before{
  content:'';position:absolute;left:2px;top:10px;
  width:6px;height:6px;border-radius:50%;background:var(--cyan);opacity:.65;
}
.tl-body li strong{color:var(--cyan);font-weight:600;}
.tl-edu .tl-dot{border-color:var(--violet);box-shadow:0 0 0 4px rgba(155,92,255,.1);}
.tl-edu .tl-time{color:var(--violet);}

/* ---------- 联系 ---------- */
.section-contact{padding-bottom:130px;}
.contact-box{
  background:linear-gradient(150deg,rgba(58,214,255,.06),rgba(155,92,255,.05));
  border:1px solid var(--border);border-radius:22px;
  padding:60px 48px;text-align:center;position:relative;overflow:hidden;
  backdrop-filter:blur(14px);
}
.contact-box::before{
  content:'';position:absolute;top:-50%;left:50%;transform:translateX(-50%);
  width:600px;height:600px;border-radius:50%;
  background:radial-gradient(circle,rgba(58,214,255,.13),transparent 66%);
  pointer-events:none;
}
.contact-box .section-idx{text-align:center;}
.contact-box .section-idx::after{display:none;}
.contact-title{
  font-size:clamp(30px,5vw,50px);font-weight:900;letter-spacing:-1px;margin-bottom:14px;
  position:relative;
}
.contact-title .dot{color:var(--cyan);text-shadow:var(--glow);}
.contact-desc{color:var(--txt-2);font-size:15px;margin-bottom:42px;position:relative;}

.contact-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;
  position:relative;text-align:left;
}
.contact-item{
  display:flex;align-items:center;gap:15px;
  padding:19px 20px;border-radius:13px;
  background:rgba(9,13,22,.68);border:1px solid var(--border);
  text-decoration:none;color:var(--txt);position:relative;
  transition:all .3s cubic-bezier(.4,0,.2,1);
}
.contact-item:hover{
  border-color:var(--border-hi);transform:translateY(-3px);
  box-shadow:0 14px 38px rgba(0,0,0,.42);
}
.contact-item-static{cursor:default;}
.contact-item-static:hover{transform:none;border-color:var(--border);box-shadow:none;}
.ci-icon{
  width:40px;height:40px;flex-shrink:0;border-radius:11px;display:grid;place-items:center;
  background:rgba(58,214,255,.09);color:var(--cyan);border:1px solid var(--border);
}
.ci-icon svg{width:19px;height:19px;}
.ci-text{display:flex;flex-direction:column;min-width:0;}
.ci-label{font-size:11.5px;color:var(--txt-3);font-family:var(--mono);letter-spacing:.5px;}
.ci-value{font-size:14.5px;font-weight:600;letter-spacing:.2px;overflow:hidden;text-overflow:ellipsis;}
.ci-copy{
  margin-left:auto;font-size:11px;font-family:var(--mono);color:var(--txt-3);
  padding:4px 9px;border-radius:6px;border:1px solid var(--border);
  opacity:0;transition:.25s;flex-shrink:0;
}
.contact-item:hover .ci-copy{opacity:1;color:var(--cyan);border-color:var(--border-hi);}

/* ---------- 页脚 ---------- */
.footer{
  border-top:1px solid var(--border);padding:26px 0;
  position:relative;z-index:5;background:rgba(5,7,13,.6);
}
.footer-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-left{
  display:flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:13px;color:var(--txt-2);
}
.footer-sep{color:var(--txt-3);}
.footer-right{font-family:var(--mono);font-size:12px;color:var(--txt-3);}

/* ---------- 弹窗 ---------- */
.modal{
  position:fixed;inset:0;z-index:200;display:none;
  align-items:center;justify-content:center;padding:24px;
}
.modal.open{display:flex;}
.modal-backdrop{
  position:absolute;inset:0;background:rgba(3,5,10,.82);
  backdrop-filter:blur(9px);-webkit-backdrop-filter:blur(9px);
  animation:fadeIn .28s ease;
}
@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}
.modal-panel{
  position:relative;width:100%;max-width:780px;max-height:86vh;
  background:var(--panel-solid);border:1px solid var(--border-hi);
  border-radius:18px;overflow:hidden;display:flex;flex-direction:column;
  box-shadow:0 40px 100px rgba(0,0,0,.7);
  animation:slideUp .36s cubic-bezier(.22,1,.36,1);
}
@keyframes slideUp{from{opacity:0;transform:translateY(28px) scale(.97);}to{opacity:1;transform:none;}}
.modal-close{
  position:absolute;top:16px;right:16px;z-index:2;
  width:36px;height:36px;border-radius:10px;cursor:pointer;
  background:rgba(255,255,255,.05);border:1px solid var(--border);
  color:var(--txt-2);display:grid;place-items:center;transition:.25s;
}
.modal-close:hover{background:rgba(255,90,90,.14);color:#ff8080;border-color:rgba(255,90,90,.4);}
.modal-close svg{width:17px;height:17px;}
.modal-body{overflow-y:auto;padding:40px 42px 44px;}
.modal-body::-webkit-scrollbar{width:7px;}
.modal-body::-webkit-scrollbar-track{background:transparent;}
.modal-body::-webkit-scrollbar-thumb{background:rgba(90,140,220,.3);border-radius:4px;}

.md-badge{
  display:inline-block;font-family:var(--mono);font-size:10.5px;
  letter-spacing:1.2px;padding:4px 11px;border-radius:6px;margin-bottom:15px;
}
.md-title{font-size:26px;font-weight:900;margin-bottom:11px;letter-spacing:-.3px;}
.md-meta{
  font-family:var(--mono);font-size:12px;color:var(--txt-3);
  margin-bottom:26px;padding-bottom:22px;border-bottom:1px solid var(--border);
  letter-spacing:.4px;
}
.md-section{margin-bottom:26px;}
.md-section:last-child{margin-bottom:0;}
.md-section h4{
  font-size:13px;font-weight:700;font-family:var(--mono);letter-spacing:1.6px;
  color:var(--cyan);text-transform:uppercase;margin-bottom:13px;
}
.md-section p{font-size:14.5px;color:var(--txt-2);line-height:1.85;}
.md-section ul{list-style:none;}
.md-section li{
  position:relative;padding-left:20px;margin-bottom:10px;
  font-size:14.5px;color:var(--txt-2);line-height:1.8;
}
.md-section li::before{
  content:'';position:absolute;left:2px;top:11px;
  width:6px;height:6px;border-radius:50%;background:var(--cyan);opacity:.65;
}
.md-section li strong{color:var(--txt);font-weight:600;}
.md-stack{display:flex;flex-wrap:wrap;gap:8px;}
.md-stack span{
  font-family:var(--mono);font-size:12px;padding:5px 12px;border-radius:7px;
  background:rgba(58,214,255,.07);color:var(--cyan);border:1px solid rgba(58,214,255,.2);
}

/* ---------- Toast ---------- */
.toast{
  position:fixed;bottom:34px;left:50%;transform:translateX(-50%) translateY(80px);
  background:var(--panel-solid);border:1px solid var(--border-hi);color:var(--txt);
  padding:12px 24px;border-radius:11px;font-size:13.5px;font-weight:500;
  box-shadow:0 14px 40px rgba(0,0,0,.6);z-index:300;
  opacity:0;transition:all .36s cubic-bezier(.22,1,.36,1);pointer-events:none;
  font-family:var(--mono);
}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1;}

/* ---------- 响应式 ---------- */
@media (max-width:900px){
  .about-grid{grid-template-columns:1fr;gap:32px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .contact-box{padding:44px 26px;}
  .modal-body{padding:32px 24px 36px;}
}

@media (max-width:720px){
  .nav{padding:14px 20px;}
  .nav.scrolled{padding:10px 20px;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:min(280px,78vw);
    flex-direction:column;gap:4px;padding:88px 20px 24px;
    background:rgba(7,10,18,.97);backdrop-filter:blur(20px);
    border-left:1px solid var(--border);
    transform:translateX(100%);transition:transform .38s cubic-bezier(.4,0,.2,1);
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{font-size:16px;padding:13px 16px;}

  .container{padding:0 20px;}
  .section{padding:76px 0;}
  .hero{padding:110px 20px 50px;}
  .hero-stats{margin-top:52px;}
  .stat{padding:20px 14px;}
  .stat-num{font-size:30px;}
  .hero-title .line:first-child{letter-spacing:-2px;}
  .timeline{padding-left:26px;}
  .tl-dot{left:-26px;}
  .project-grid{grid-template-columns:1fr;}
  .skill-groups{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-inner{justify-content:center;text-align:center;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;}
  [data-reveal]{opacity:1;transform:none;}
  #loader{display:none !important;}
  .cursor-dot,.cursor-ring{display:none !important;}
}

/* ---------- 项目卡 3D 倾斜 ---------- */
.project-card{transform-style:preserve-3d;perspective:900px;}
.project-card .pc-name,.project-card .pc-more{transition:transform .3s;}
.project-card.tiltting,
.project-card.tiltting:hover{
  transform:translateY(-6px) rotateX(var(--rx,0deg)) rotateY(var(--ry,0deg)) scale(1.015) !important;
  border-color:var(--border-hi);
  box-shadow:0 30px 60px rgba(0,0,0,.55),0 0 26px rgba(58,214,255,.14);
}
.project-card.tiltting .pc-name{transform:translateZ(24px);}
.project-card.tiltting .pc-more{transform:translateZ(16px);}