/* ============ 黑金主题变量 ============ */
:root{
  --bg:#07070a;
  --bg-soft:#0d0d12;
  --panel:#111117;
  --panel-2:#15151d;
  --line:rgba(232,197,106,.18);
  --gold:#E8C56A;
  --gold-2:#C9A227;
  --gold-light:#F9E7A8;
  --gold-deep:#8B6914;
  --text:#EDEBE6;
  --muted:#8C8A85;
  --radius:18px;
  --maxw:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  line-height:1.7;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
::selection{background:var(--gold);color:#000}

/* 滚动条 */
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:#0a0a0d}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--gold-2),var(--gold-deep));border-radius:10px}

/* ============ 背景 ============ */
#particles{position:fixed;inset:0;z-index:0;pointer-events:none}
.bg-glow{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(700px 500px at 12% 8%,rgba(232,197,106,.13),transparent 60%),
    radial-gradient(800px 600px at 88% 30%,rgba(201,162,39,.10),transparent 62%),
    radial-gradient(600px 600px at 50% 100%,rgba(139,105,20,.12),transparent 65%);
}
.bg-grid{
  position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.35;
  background-image:linear-gradient(rgba(232,197,106,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(232,197,106,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 30%,#000 25%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 25%,transparent 78%);
}
.cursor-glow{
  position:fixed;width:420px;height:420px;left:0;top:0;z-index:1;pointer-events:none;
  transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(232,197,106,.10),transparent 62%);
  transition:opacity .4s;opacity:0;
}

/* ============ 通用 ============ */
main,.nav,.footer{position:relative;z-index:2}
.gold-text{
  background:linear-gradient(100deg,var(--gold-light),var(--gold) 40%,var(--gold-2) 70%,var(--gold-light));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  background-size:200% auto;animation:shine 5s linear infinite;
}
@keyframes shine{to{background-position:200% center}}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ============ 导航 ============ */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:.35s;padding:14px 0}
.nav.stuck{background:rgba(7,7,10,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding:8px 0}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:flex;flex-direction:column;line-height:1.15}
.logo-mark{font-size:22px;font-weight:800;letter-spacing:2px;
  background:linear-gradient(100deg,var(--gold-light),var(--gold),var(--gold-light));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.logo-sub{font-size:10px;letter-spacing:4px;color:var(--gold-2);opacity:.75}
.menu{display:flex;gap:6px}
.menu a{position:relative;padding:8px 16px;font-size:15px;color:#B9B6AE;border-radius:999px;transition:.25s}
.menu a:hover{color:var(--gold)}
.menu a.active{color:#0b0b0d;background:linear-gradient(100deg,var(--gold-light),var(--gold-2));font-weight:600}
.menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.menu-toggle span{width:24px;height:2px;background:var(--gold);transition:.3s}

/* ============ HERO ============ */
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:120px 24px 60px;position:relative}
.hero-inner{max-width:var(--maxw);width:100%;display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;padding:7px 16px;margin-bottom:22px;
  border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--gold);
  background:rgba(232,197,106,.05);
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}
.hero-name{font-size:clamp(38px,6vw,72px);font-weight:900;letter-spacing:2px;line-height:1.15;margin-bottom:14px}
.hero-type{
  font-family:Consolas,"Courier New",monospace;font-size:clamp(15px,2vw,20px);
  color:#CFCBC2;min-height:34px;margin-bottom:18px;display:flex;align-items:center;gap:8px
}
.type-prefix{color:var(--gold)}
.caret{display:inline-block;width:9px;height:20px;background:var(--gold);vertical-align:-3px;animation:blink 1s steps(2) infinite}
@keyframes blink{50%{opacity:0}}
.hero-desc{max-width:560px;color:var(--muted);font-size:16px;margin-bottom:32px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.btn{padding:13px 30px;border-radius:999px;font-size:15px;font-weight:600;transition:.3s;position:relative;overflow:hidden;border:1px solid transparent}
.btn-gold{background:linear-gradient(100deg,var(--gold-light),var(--gold-2));color:#0b0b0d;box-shadow:0 10px 30px rgba(232,197,106,.22)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(232,197,106,.35)}
.btn-ghost{border-color:var(--line);color:var(--gold)}
.btn-ghost:hover{background:rgba(232,197,106,.08);transform:translateY(-3px);border-color:var(--gold)}
.hero-links{display:flex;gap:22px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.hero-links a,.hero-links span{display:inline-flex;align-items:center;gap:6px;transition:.25s}
.hero-links a:hover{color:var(--gold)}

/* 头像 */
.hero-right{display:flex;justify-content:center}
.avatar-wrap{position:relative;width:330px;height:330px;display:flex;align-items:center;justify-content:center}
.avatar{position:relative;width:232px;height:232px;border-radius:50%;overflow:hidden;
  border:2px solid rgba(232,197,106,.65);box-shadow:0 0 0 8px rgba(232,197,106,.07),0 20px 60px rgba(0,0,0,.65);
  background:var(--bg-soft);z-index:3;transition:.4s}
.avatar img{width:100%;height:100%;object-fit:cover}
.avatar-wrap:hover .avatar{transform:scale(1.04)}
.ring{position:absolute;border-radius:50%;border:1px solid transparent}
.ring-1{width:100%;height:100%;border-top-color:var(--gold);border-right-color:rgba(232,197,106,.35);animation:spin 9s linear infinite}
.ring-2{width:82%;height:82%;border-bottom-color:var(--gold-2);border-left-color:rgba(232,197,106,.25);animation:spin 7s linear infinite reverse}
.ring-dashed{position:absolute;width:92%;height:92%;border-radius:50%;border:1px dashed rgba(232,197,106,.28);animation:spin 26s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.scroll-tip{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);font-size:12px;color:var(--muted);letter-spacing:2px;text-align:center}
.scroll-tip span{display:block;width:1px;height:38px;margin:8px auto 0;background:linear-gradient(var(--gold),transparent);animation:drop 1.8s infinite}
@keyframes drop{0%{transform:scaleY(0);opacity:0}40%{transform:scaleY(1);opacity:1}100%{transform:scaleY(1);opacity:0}}

/* ============ 数据条 ============ */
.stats{max-width:var(--maxw);margin:0 auto;padding:36px 24px;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{text-align:center;padding:26px 12px;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(232,197,106,.05),transparent);transition:.35s}
.stat:hover{transform:translateY(-6px);border-color:var(--gold);box-shadow:0 14px 34px rgba(232,197,106,.12)}
.stat .num{font-size:34px;font-weight:800;color:var(--gold);font-family:Consolas,monospace}
.stat .label{font-size:13px;color:var(--muted);margin-top:4px}

/* ============ 区块 ============ */
.section{max-width:var(--maxw);margin:0 auto;padding:90px 24px}
.sec-head{margin-bottom:46px;position:relative}
.sec-no{font-family:Consolas,monospace;font-size:15px;color:var(--gold-2);letter-spacing:3px}
.sec-title{font-size:clamp(28px,4vw,42px);font-weight:800;margin:6px 0 10px}
.sec-title .gold-text{font-size:.55em;letter-spacing:4px;margin-left:10px}
.sec-sub{color:var(--muted);font-size:15px}

/* 技能卡 */
.skill-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:20px}
.skill-card{position:relative;padding:26px 20px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);text-align:center;overflow:hidden;transition:.4s}
.skill-card::before{content:"";position:absolute;inset:0;opacity:0;transition:.4s;
  background:radial-gradient(300px 200px at 50% 0%,rgba(232,197,106,.16),transparent 70%)}
.skill-card:hover{transform:translateY(-8px);border-color:var(--gold);box-shadow:0 18px 44px rgba(0,0,0,.55)}
.skill-card:hover::before{opacity:1}
.skill-card .icon{font-size:26px;margin-bottom:10px}
.ring-box{position:relative;width:112px;height:112px;margin:0 auto 14px}
.ring-svg{width:112px;height:112px;display:block;transform:rotate(-90deg)}
.ring-svg circle{fill:none;stroke-width:7;stroke-linecap:round}
.ring-bg{stroke:rgba(255,255,255,.07)}
.ring-fg{stroke-dasharray:295.3;stroke-dashoffset:295.3;transition:stroke-dashoffset 1.6s cubic-bezier(.2,.7,.3,1)}
.skill-card .pct{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  font-size:22px;font-weight:800;color:var(--gold);font-family:Consolas,monospace}
.skill-card h3{font-size:18px;margin-bottom:6px}
.skill-card p{font-size:13px;color:var(--muted)}
.skill-level{
  display:inline-block;
  padding:2px 10px;
  border-radius:999px;
  font-size:11px;
  font-weight:600;
  color:var(--gold);
  background:rgba(232,197,106,.1);
  border:1px solid rgba(232,197,106,.2);
  margin-bottom:6px;
}

/* 作品卡 */
.proj-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(380px,1fr));gap:24px}
.proj-card{position:relative;padding:28px;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(160deg,var(--panel-2),var(--panel));overflow:hidden;
  transition:transform .4s cubic-bezier(.2,.7,.3,1),box-shadow .4s,border-color .4s;transform-style:preserve-3d}
.proj-card::after{content:"";position:absolute;inset:-1px;border-radius:var(--radius);padding:1px;opacity:0;transition:.4s;
  background:linear-gradient(130deg,transparent 20%,var(--gold),transparent 80%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.proj-card:hover{transform:translateY(-10px);border-color:transparent;box-shadow:0 24px 60px rgba(0,0,0,.6)}
.proj-card:hover::after{opacity:1}
.proj-top{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.proj-ico{width:48px;height:48px;flex:0 0 48px;display:flex;align-items:center;justify-content:center;border-radius:12px;
  background:linear-gradient(140deg,rgba(232,197,106,.2),rgba(232,197,106,.05));border:1px solid var(--line);
  font-size:20px;font-weight:700;color:var(--gold);font-family:Consolas,monospace}
.proj-card h3{font-size:19px}
.proj-tag{display:inline-block;margin-left:auto;font-size:12px;padding:3px 10px;border-radius:999px;
  color:var(--gold);border:1px solid var(--line);background:rgba(232,197,106,.06)}
.proj-hot{position:absolute;top:0;right:0;font-size:11px;padding:4px 12px;border-bottom-left-radius:12px;
  background:linear-gradient(100deg,var(--gold-light),var(--gold-2));color:#0b0b0d;font-weight:700}
.proj-card p{font-size:14px;color:var(--muted);margin-bottom:16px;min-height:66px}
.techs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.techs span{font-size:12px;padding:4px 11px;border-radius:6px;background:rgba(255,255,255,.05);color:#B9B6AE;border:1px solid rgba(255,255,255,.06)}
.proj-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--gold);font-weight:600}
.proj-link:hover i{transform:translateX(5px)}
.proj-link i{font-style:normal;transition:.3s}
.proj-link.disabled{color:#5C5A55;cursor:default;font-size:13px;padding:4px 14px;border-radius:6px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06)}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
.c-card{padding:30px;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(160deg,var(--panel-2),var(--panel));transition:.4s;display:block}
.c-card:hover{transform:translateY(-6px);border-color:var(--gold);box-shadow:0 18px 44px rgba(232,197,106,.1)}
.c-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;
  font-weight:800;font-size:15px;color:#0b0b0d;background:linear-gradient(140deg,var(--gold-light),var(--gold-2))}
.c-card h3{font-size:20px;margin-bottom:8px}
.c-card p{font-size:14px;color:var(--muted);margin-bottom:12px}
.c-link{display:inline-flex;align-items:center;gap:6px;color:var(--gold);font-family:Consolas,monospace;font-size:14px}
.c-card:hover .c-link i{transform:translateX(5px)}
.c-link i{font-style:normal;transition:.3s}
.c-wx{display:flex;gap:22px;align-items:center}
.c-qr{position:relative;flex:0 0 148px;width:148px;height:148px;border-radius:14px;overflow:hidden;
  border:1px solid var(--line);background:#0d0d10}
.c-qr img{width:100%;height:100%;object-fit:cover}
.wx-name{font-size:22px!important;font-weight:800;color:var(--gold)!important;margin-bottom:6px!important}
.wx-desc{font-size:13px!important}

/* 页脚 */
.footer{text-align:center;padding:50px 24px 40px;color:var(--muted);font-size:14px}
.footer-line{width:180px;height:1px;margin:0 auto 24px;background:linear-gradient(90deg,transparent,var(--gold),transparent)}
.footer-tip{margin-top:6px;font-size:13px;color:var(--gold-2);opacity:.7;letter-spacing:1px}
.footer-icp{margin-top:12px;font-size:12px;color:var(--muted)}
.footer-icp a{color:var(--muted);transition:.3s}
.footer-icp a:hover{color:var(--gold)}

/* ============ 响应式 ============ */
@media(max-width:900px){
  .hero-inner{grid-template-columns:1fr;gap:40px;text-align:center}
  .hero-right{order:-1}
  .avatar-wrap{width:260px;height:260px}
  .avatar{width:180px;height:180px}
  .hero-desc{margin:0 auto 26px}
  .hero-btns,.hero-links,.eyebrow{justify-content:center}
  .eyebrow{margin-left:auto;margin-right:auto;display:inline-flex}
  .stats{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .menu{position:fixed;top:64px;left:0;right:0;flex-direction:column;gap:0;
    background:rgba(7,7,10,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .35s}
  .menu.open{max-height:280px}
  .menu a{padding:14px 24px;border-radius:0}
  .menu-toggle{display:flex}
}
@media(max-width:520px){
  .section{padding:64px 18px}
  .proj-card{padding:22px}
  .c-wx{flex-direction:column;text-align:center}
  .skill-card .pct{margin-top:-76px}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}