:root{
  --bg:#0a0a0f;
  --bg-soft:#121219;
  --panel:#16161f;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --txt:#f4f4f7;
  --txt-dim:#9a9aa6;
  --txt-faint:#66666f;
  --accent:#ff4d3d;      /* 主强调 红 */
  --accent-2:#ffb03a;    /* 橙黄辅助 */
  --accent-3:#6c5cff;    /* 紫蓝 */
  --radius:18px;
  --maxw:1200px;
  --ease:cubic-bezier(.22,1,.36,1);
  /* 新增：青绿点缀，提升高级感 */
  --accent-4:#3ad6c5;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--txt);
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
b,strong{font-weight:700}
em{font-style:normal}

/* 滚动进度 */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:200;
  background:linear-gradient(90deg,var(--accent),var(--accent-2),var(--accent-4));
}

/* 顶部求职状态条 */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:linear-gradient(90deg,rgba(255,77,61,.16),rgba(108,92,255,.14));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(8px);
}
.topbar__inner{max-width:var(--maxw);margin:0 auto;padding:8px clamp(18px,5vw,54px);
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--txt-dim)}
.topbar__tag{color:#fff;background:var(--accent);padding:3px 12px;border-radius:20px;font-weight:700;font-size:12px;letter-spacing:1px}
.topbar__dot{color:var(--txt-faint)}
.topbar__link{margin-left:auto;color:var(--accent-4);font-weight:600;border-bottom:1px solid transparent;transition:.25s}
.topbar__link:hover{color:#fff;border-bottom-color:var(--accent-4)}

/* 导航 */
.nav{
  position:fixed;top:38px;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px clamp(18px,5vw,54px);
  transition:background .4s var(--ease),padding .4s var(--ease),border-color .4s,top .4s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(10,10,15,.85);
  backdrop-filter:blur(14px);
  padding-top:12px;padding-bottom:12px;
  top:0;
  border-bottom:1px solid var(--line);
}
.nav__brand{display:flex;align-items:center;gap:12px}
.nav__logo{
  width:38px;height:38px;border-radius:10px;
  display:grid;place-items:center;font-weight:800;font-size:15px;letter-spacing:.5px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2),var(--accent-4));
  color:#fff;box-shadow:0 6px 20px rgba(255,77,61,.35);
}
.nav__name{font-weight:700;font-size:15px;letter-spacing:1px;display:flex;flex-direction:column;line-height:1.15}
.nav__name em{font-size:10px;color:var(--txt-faint);letter-spacing:3px;font-weight:500}
.nav__links{display:flex;align-items:center;gap:30px}
.nav__links a{font-size:14px;color:var(--txt-dim);transition:color .25s;position:relative}
.nav__links a:not(.nav__cta)::after{
  content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;background:var(--accent);transition:width .3s var(--ease);
}
.nav__links a:hover{color:var(--txt)}
.nav__links a:hover::after{width:100%}
.nav__cta{
  padding:9px 20px;border-radius:30px;color:#fff !important;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  box-shadow:0 6px 18px rgba(255,77,61,.3);
}
.nav__cta:hover{transform:translateY(-2px)}
.nav__burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.nav__burger span{width:24px;height:2px;background:var(--txt);border-radius:2px;transition:.3s}

/* 通用按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:30px;font-size:15px;font-weight:600;
  transition:transform .25s var(--ease),box-shadow .25s,background .25s;cursor:pointer;
}
.btn--primary{background:linear-gradient(135deg,var(--accent),var(--accent-2),var(--accent-4));color:#fff;box-shadow:0 10px 30px rgba(255,77,61,.32)}
.btn--primary:hover{transform:translateY(-3px);box-shadow:0 16px 40px rgba(255,77,61,.42)}
.btn--ghost{border:1px solid var(--line-strong);color:var(--txt)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn--lg{padding:16px 40px;font-size:16px;margin-top:28px}

/* HERO */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;padding:150px clamp(18px,5vw,54px) 60px}
.hero__bg{position:absolute;inset:0;background:
  radial-gradient(60% 60% at 75% 20%,rgba(255,77,61,.20),transparent 60%),
  radial-gradient(50% 50% at 15% 80%,rgba(108,92,255,.20),transparent 60%),
  radial-gradient(40% 40% at 50% 50%,rgba(58,214,197,.06),transparent 70%),
  var(--bg);}
.hero__grid{position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:54px 54px;
  mask-image:radial-gradient(circle at 50% 40%,#000,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000,transparent 78%);}
.hero__inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;width:100%}
.hero__eyebrow{font-size:13px;letter-spacing:6px;color:var(--accent-2);font-weight:600;margin-bottom:18px}
.hero__title{font-size:clamp(40px,7.5vw,92px);line-height:1.02;font-weight:800;letter-spacing:-1px}
.hero__hl{
  background:linear-gradient(120deg,var(--accent),var(--accent-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__sub{max-width:560px;margin-top:26px;font-size:clamp(15px,2vw,18px);color:var(--txt-dim)}
.hero__sub strong{color:var(--txt)}
.hero__actions{display:flex;gap:16px;margin-top:36px;flex-wrap:wrap}
.hero__stats{display:flex;gap:clamp(24px,5vw,60px);margin-top:54px;list-style:none;flex-wrap:wrap}
.hero__stats li{display:flex;flex-direction:column}
.hero__stats b{font-size:clamp(30px,4.5vw,46px);font-weight:800;line-height:1;
  background:linear-gradient(120deg,#fff,#b9b9c4);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__stats span{font-size:13px;color:var(--txt-faint);margin-top:8px;letter-spacing:1px}
.hero__scroll{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:3;
  font-size:11px;letter-spacing:4px;color:var(--txt-faint);writing-mode:vertical-rl;animation:bob 2s infinite}
@keyframes bob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,10px)}}

/* SECTION HEAD */
.section-head{max-width:var(--maxw);margin:0 auto;padding:0 clamp(18px,5vw,54px);position:relative}
.section-head__no{font-size:13px;letter-spacing:4px;color:var(--accent);font-weight:700}
.section-head__title{font-size:clamp(28px,4.5vw,46px);font-weight:800;margin-top:8px;letter-spacing:-.5px}
.section-head__desc{color:var(--txt-dim);margin-top:12px;font-size:15px;max-width:560px}
.section-head--light .section-head__title,
.section-head--light .section-head__desc{color:#fff}
.section-head--light .section-head__no{color:var(--accent-2)}

/* 通用 section 间距 */
.about,.works,.gallery,.video-sec,.ai-sec{padding:clamp(70px,9vw,120px) 0}
.works,.video-sec,.ai-sec{background:var(--bg-soft)}

/* ABOUT */
.about__grid{max-width:var(--maxw);margin:48px auto 0;padding:0 clamp(18px,5vw,54px);display:grid;grid-template-columns:1.1fr 1fr;gap:48px}
.about__card{display:flex;gap:22px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.about__avatar{width:120px;height:120px;border-radius:14px;object-fit:cover;border:2px solid var(--line-strong);flex-shrink:0;
  box-shadow:0 10px 30px rgba(0,0,0,.4)}
.about__intro h3{font-size:22px;font-weight:800}
.about__role{color:var(--accent-2);font-size:14px;margin:4px 0 12px;letter-spacing:1px}
.about__text{color:var(--txt-dim);font-size:14.5px}
.about__meta{list-style:none;margin-top:16px;display:flex;flex-direction:column;gap:8px}
.about__meta li{font-size:14px;color:var(--txt)}
.about__meta span{display:inline-block;width:48px;color:var(--txt-faint);font-size:12px;letter-spacing:1px}
.about__skills{display:flex;flex-direction:column;gap:20px;justify-content:center}
.skill__top{display:flex;justify-content:space-between;font-size:13.5px;margin-bottom:8px;color:var(--txt-dim)}
.skill__top b{color:var(--txt)}
.skill__bar{height:8px;border-radius:8px;background:rgba(255,255,255,.06);overflow:hidden}
.skill__bar i{display:block;height:100%;width:0;border-radius:8px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2),var(--accent-4));
  transition:width 1.4s var(--ease);}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.tags span{font-size:12px;padding:6px 13px;border:1px solid var(--line-strong);border-radius:20px;color:var(--txt-dim)}

/* WORKS CATS */
.works__cats{max-width:var(--maxw);margin:48px auto 0;padding:0 clamp(18px,5vw,54px);display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px;transition:transform .35s var(--ease),border-color .35s,background .35s}
.cat:hover{transform:translateY(-6px);border-color:var(--accent);background:linear-gradient(160deg,rgba(255,77,61,.08),transparent)}
.cat__icon{display:inline-grid;place-items:center;width:52px;height:52px;border-radius:14px;font-size:24px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2),var(--accent-4));color:#fff;margin-bottom:18px}
.cat h3{font-size:21px;font-weight:800}
.cat p{color:var(--txt-dim);font-size:14px;margin-top:6px}

/* GALLERY */
.gallery__grid{max-width:var(--maxw);margin:48px auto 0;padding:0 clamp(18px,5vw,54px);
  columns:3;column-gap:18px}
.gallery__item{break-inside:avoid;margin-bottom:18px;border-radius:14px;overflow:hidden;position:relative;cursor:pointer;border:1px solid var(--line);background:var(--panel)}
.gallery__item img{width:100%;display:block;transition:transform .6s var(--ease),filter .4s}
.gallery__item:hover img{transform:scale(1.06)}
.gallery__item::after{content:attr(data-label);position:absolute;left:0;right:0;bottom:0;padding:30px 16px 14px;
  font-size:13.5px;font-weight:600;color:#fff;
  background:linear-gradient(transparent,rgba(0,0,0,.78));opacity:0;transform:translateY(8px);transition:.35s var(--ease)}
.gallery__item:hover::after{opacity:1;transform:translateY(0)}

/* VIDEO */
.video__grid{max-width:var(--maxw);margin:48px auto 0;padding:0 clamp(18px,5vw,54px);display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.vid{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .35s var(--ease),border-color .35s}
.vid:hover{transform:translateY(-5px);border-color:var(--accent-3)}
.vid video{width:100%;display:block;background:#000;aspect-ratio:16/9;object-fit:cover}
.vid__meta{padding:18px 20px}
.vid__meta h3{font-size:17px;font-weight:700}
.vid__meta p{color:var(--txt-dim);font-size:13.5px;margin-top:4px}
.vid__tag{display:inline-block;font-size:11px;letter-spacing:1px;color:var(--accent-2);border:1px solid rgba(255,176,58,.4);padding:3px 10px;border-radius:20px;margin-bottom:10px}

/* AI */
.ai__grid{max-width:var(--maxw);margin:48px auto 0;padding:0 clamp(18px,5vw,54px);display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.ai__note{max-width:var(--maxw);margin:34px auto 0;padding:0 clamp(18px,5vw,54px);color:var(--txt-faint);font-size:13px;text-align:center}

/* CONTACT */
.contact{padding:clamp(70px,9vw,120px) clamp(18px,5vw,54px)}
.contact__card{max-width:var(--maxw);margin:0 auto;background:linear-gradient(150deg,rgba(255,77,61,.16),rgba(108,92,255,.14),rgba(58,214,197,.10));
  border:1px solid var(--line-strong);border-radius:24px;padding:clamp(34px,6vw,64px);text-align:center}
.contact__row{display:flex;flex-wrap:wrap;justify-content:center;gap:18px;margin-top:36px}
.contact__item{background:rgba(0,0,0,.25);border:1px solid var(--line);border-radius:14px;padding:18px 26px;min-width:200px;text-align:left;transition:border-color .3s,transform .3s}
.contact__item:hover{border-color:var(--accent-2);transform:translateY(-3px)}
.contact__item span{display:block;font-size:12px;color:var(--txt-faint);letter-spacing:1px}
.contact__item b{font-size:16px;font-weight:700;color:#fff}

/* RESUME 简历速览 */
.resume__grid{max-width:var(--maxw);margin:48px auto 0;padding:0 clamp(18px,5vw,54px);display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start}
.resume__block{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;position:relative;overflow:hidden}
.resume__block::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--accent),var(--accent-4))}
.resume__h{font-size:17px;font-weight:800;margin-bottom:18px;letter-spacing:.5px}
.resume__item{padding:14px 0;border-bottom:1px dashed var(--line)}
.resume__item:last-child{border-bottom:0;padding-bottom:0}
.resume__item-top{display:flex;justify-content:space-between;gap:12px;align-items:baseline;flex-wrap:wrap}
.resume__item-top b{font-size:15px;font-weight:700}
.resume__item-top span{font-size:12.5px;color:var(--accent-4);font-weight:600;white-space:nowrap}
.resume__item p{font-size:13.5px;color:var(--txt-dim);margin-top:6px}
.resume__muted{color:var(--txt-faint);font-size:12.5px}
.resume__list{list-style:none;display:flex;flex-direction:column;gap:10px}
.resume__list li{font-size:14px;color:var(--txt);padding-left:20px;position:relative}
.resume__list li::before{content:"▹";position:absolute;left:0;color:var(--accent)}
.resume__list--tag{flex-direction:row;flex-wrap:wrap;gap:8px}
.resume__list--tag li{padding:6px 13px;background:rgba(255,255,255,.04);border:1px solid var(--line-strong);border-radius:20px;font-size:12.5px}
.resume__list--tag li::before{content:""}
.resume__download{max-width:var(--maxw);margin:30px auto 0;padding:20px clamp(18px,5vw,54px);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  background:linear-gradient(120deg,rgba(255,77,61,.08),rgba(108,92,255,.08));border:1px solid var(--line);border-radius:var(--radius)}
.resume__download span{font-size:14px;color:var(--txt-dim)}
.btn--sm{padding:9px 18px;font-size:13.5px}

/* FOOTER */
.footer{padding:30px clamp(18px,5vw,54px);border-top:1px solid var(--line);text-align:center}
.footer p{color:var(--txt-faint);font-size:13px}

/* LIGHTBOX */
.lightbox{position:fixed;inset:0;z-index:300;background:rgba(6,6,9,.92);display:none;align-items:center;justify-content:center;padding:30px;backdrop-filter:blur(6px)}
.lightbox.open{display:flex;animation:fade .3s}
@keyframes fade{from{opacity:0}to{opacity:1}}
.lightbox__body{max-width:92vw;max-height:88vh}
.lightbox__body img{max-width:92vw;max-height:88vh;border-radius:10px;box-shadow:0 20px 60px rgba(0,0,0,.6)}
.lightbox__close{position:absolute;top:24px;right:30px;width:46px;height:46px;border-radius:50%;border:1px solid var(--line-strong);background:rgba(255,255,255,.06);color:#fff;font-size:26px;cursor:pointer;transition:.25s}
.lightbox__close:hover{background:var(--accent);border-color:var(--accent)}

/* 入场动画 */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* 响应式 */
@media(max-width:900px){
  .about__grid{grid-template-columns:1fr;gap:30px}
  .works__cats{grid-template-columns:1fr}
  .gallery__grid{columns:2}
  .video__grid{grid-template-columns:1fr}
  .ai__grid{grid-template-columns:1fr}
  .resume__grid{grid-template-columns:1fr}
  .nav__links{position:fixed;top:38px;right:0;height:calc(100vh - 38px);width:min(76vw,320px);
    flex-direction:column;align-items:flex-start;gap:8px;padding:30px;
    background:rgba(10,10,15,.98);backdrop-filter:blur(16px);border-left:1px solid var(--line);
    transform:translateX(110%);transition:transform .4s var(--ease)}
  .nav__links.open{transform:none}
  .nav__links a{padding:10px 0;font-size:16px}
  .nav__burger{display:flex}
}
@media(max-width:560px){
  .gallery__grid{columns:1}
  .about__card{flex-direction:column}
  .about__avatar{width:96px;height:96px}
  .hero__stats{gap:22px}
}