/* =========================================================
   doylehub.fun · 个人作品集
   设计令牌 → 基础 → 组件 → 区块 → 动效 → 响应式
   ========================================================= */

/* ---------- 设计令牌 ---------- */
:root{
  --bg-0:#070B14;
  --bg-1:#0B1220;
  --panel:rgba(255,255,255,.035);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --text-0:#E8EEFC;
  --text-1:#93A4C4;
  --text-2:#5C6B87;
  --accent:#38BDF8;
  --accent-dim:rgba(56,189,248,.14);
  --grid:rgba(255,255,255,.03);
  --mono:"JetBrains Mono",Consolas,"Cascadia Mono",monospace;
  --sans:system-ui,-apple-system,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;
  --maxw:1120px;
  --radius:14px;
}

/* ---------- 基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text-1);
  background:linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 45%,var(--bg-0) 100%);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
/* 网格纹理：几乎看不见，但让页面有"结构感" */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:34px 34px;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 70%);
          mask-image:linear-gradient(180deg,#000 0%,transparent 70%);
}
/* 极淡光晕：全站唯一的"光" */
body::after{
  content:"";position:fixed;top:-260px;right:-180px;width:760px;height:760px;
  pointer-events:none;z-index:0;border-radius:50%;
  background:radial-gradient(circle,rgba(56,189,248,.055),transparent 66%);
  filter:blur(20px);
}
h1,h2,h3,h4{line-height:1.3;font-weight:600}
p{margin:0 0 1em}
a{color:var(--accent)}
strong,b{color:var(--text-0);font-weight:600}
img{max-width:100%}
::selection{background:rgba(56,189,248,.28);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- 入场动效 ---------- */
.js-ready [data-reveal]{opacity:0;transform:translateY(12px)}
.js-ready [data-reveal].is-visible{
  opacity:1;transform:none;
  transition:opacity .5s ease,transform .5s ease;
}
/* 依次点亮的层：初始半透明，点亮后回到常态 */
.js-ready .layer{opacity:.35;transition:opacity .45s ease,border-color .45s ease,box-shadow .45s ease}
.js-ready .layer.is-visible{
  opacity:1;border-color:var(--accent);
  box-shadow:0 0 0 1px var(--accent-dim),0 14px 34px -20px var(--accent);
}

/* ---------- 按钮 ---------- */
.btn{
  position:relative;overflow:hidden;display:inline-block;
  padding:12px 24px;border-radius:10px;border:1px solid transparent;
  background:var(--accent);color:#04121C;
  font-family:var(--sans);font-size:.95rem;font-weight:600;
  text-decoration:none;cursor:pointer;
  transition:transform .2s ease,background .2s ease;
}
.btn--sm{padding:8px 16px;font-size:.88rem;border-radius:8px}
.btn--ghost{background:transparent;color:var(--text-0);border-color:var(--line-strong)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn:hover{transform:translateY(-2px)}
.btn::after{
  content:"";position:absolute;inset:0;transform:translateX(-120%);
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.42),transparent);
  pointer-events:none;
}
.btn:hover::after{transform:translateX(120%);transition:transform .6s ease}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;inset:0 0 auto;z-index:50;
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;
}
.nav.is-scrolled{
  background:rgba(7,11,20,.74);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.nav__inner{display:flex;align-items:center;gap:24px;height:64px}
.nav__brand{
  margin-right:auto;color:var(--text-0);text-decoration:none;
  font-weight:700;letter-spacing:.02em;
}
.nav__dot{
  display:inline-block;width:8px;height:8px;border-radius:2px;
  background:var(--accent);margin-right:9px;vertical-align:middle;
}
.nav__links{display:flex;gap:22px}
.nav__links a{color:var(--text-1);text-decoration:none;font-size:.94rem;transition:color .2s ease}
.nav__links a:hover{color:var(--text-0)}

/* ---------- 首屏 ---------- */
.hero{padding:152px 0 92px}
.tag{
  display:inline-block;margin:0 0 22px;padding:4px 12px;border-radius:999px;
  font-family:var(--mono);font-size:.78rem;letter-spacing:.04em;
  color:var(--accent);background:var(--accent-dim);
}
.hero__name{
  margin:0;color:var(--text-0);
  font-size:clamp(2.5rem,7vw,4.5rem);line-height:1.05;letter-spacing:-.02em;
}
.hero__claim{
  margin:18px 0 0;max-width:22ch;
  color:var(--text-0);font-size:clamp(1.15rem,2.6vw,1.75rem);
  font-weight:500;line-height:1.5;
}
.hero__meta{margin:20px 0 0;font-size:.9rem;color:var(--text-2)}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin:34px 0 0}
.statusbar{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  margin:64px 0 0;padding:0;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--line);
}
.statusbar>div{background:var(--bg-0);padding:16px 18px}
.statusbar dt{
  margin:0 0 6px;font-size:.72rem;letter-spacing:.1em;
  color:var(--accent);text-transform:uppercase;
}
.statusbar dd{margin:0;font-size:.86rem;color:var(--text-0);line-height:1.6}

/* ---------- 区块通用 ---------- */
.section{padding:88px 0;border-top:1px solid var(--line);scroll-margin-top:72px}
.section__eyebrow{
  margin:0 0 12px;font-size:.78rem;letter-spacing:.14em;
  color:var(--accent);text-transform:uppercase;
}
.section__title{
  margin:0 0 24px;color:var(--text-0);
  font-size:clamp(1.5rem,3.4vw,2.1rem);letter-spacing:-.01em;
}
.section__lead{max-width:62ch;font-size:1.02rem;color:var(--text-1)}
.prose{max-width:68ch;margin-top:8px}
.prose p{margin:0 0 1.1em}

/* ---------- 卡片与网格 ---------- */
.card{
  padding:22px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);
  transition:transform .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.card__k{
  display:flex;align-items:center;gap:9px;
  margin:0 0 10px;color:var(--text-0);font-size:1rem;
}
.card__k::before{
  content:"";flex:0 0 auto;width:2px;height:14px;
  background:var(--accent);border-radius:2px;
}
.card p{margin:0;font-size:.92rem}

.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}

.paincard__no{
  margin:0 0 12px;font-size:.8rem;letter-spacing:.12em;color:var(--text-2);
}

/* 二级标题 */
.sub{
  margin:64px 0 20px;color:var(--text-0);
  font-size:1.15rem;letter-spacing:-.005em;
}
.sub:first-of-type{margin-top:56px}
.sub__why{margin:0 0 18px;max-width:70ch;font-size:.94rem;color:var(--text-2)}

/* 要点列表 */
.points{margin:0;padding:0;list-style:none;display:grid;gap:14px;max-width:78ch}
.points li{
  position:relative;padding-left:20px;font-size:.95rem;
}
.points li::before{
  content:"";position:absolute;left:0;top:.68em;
  width:6px;height:6px;border-radius:1px;background:var(--accent);opacity:.75;
}
.points--tight li{font-size:.93rem}
.mini{margin:0;padding:0;list-style:none;display:grid;gap:9px}
.mini li{position:relative;padding-left:16px;font-size:.9rem;line-height:1.65}
.mini li::before{
  content:"";position:absolute;left:0;top:.66em;
  width:5px;height:5px;border-radius:1px;background:var(--text-2);
}

/* ---------- 四层架构 ---------- */
.layers{
  list-style:none;margin:0;padding:0;
  display:grid;gap:12px;
}
.layer{
  position:relative;padding:20px 22px 20px 70px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);
}
.layer__id{
  position:absolute;left:22px;top:20px;
  font-size:.95rem;color:var(--accent);letter-spacing:.02em;
}
.layer__title{margin:0 0 8px;color:var(--text-0);font-size:1.05rem}
.layer__desc{margin:0;font-size:.93rem}
.layer__why{margin:10px 0 0;font-size:.85rem;color:var(--text-2)}
.layer__why b{color:var(--accent);margin-right:7px}
.weights{
  margin:12px 0 0;padding-top:12px;
  border-top:1px solid var(--line);
  font-size:.8rem;color:var(--text-2);letter-spacing:.02em;
}

/* ---------- 数字对照 ---------- */
.metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.metric{
  padding:22px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);
}
.metric__label{margin:0 0 14px;font-size:.8rem;letter-spacing:.06em;color:var(--text-2)}
.metric__row{display:flex;align-items:baseline;flex-wrap:wrap;gap:12px;margin:0}
.metric__before{font-size:1.15rem;color:var(--text-2);text-decoration:line-through;text-decoration-color:var(--line-strong)}
.metric__arrow{color:var(--text-2)}
.metric__after{font-size:1.9rem;font-weight:700;color:var(--accent);line-height:1.2}

/* ---------- 项目抬头表 ---------- */
.meta-table{
  margin:0 0 8px;padding:0;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius);background:var(--line);
}
.meta-table>div{
  display:grid;grid-template-columns:120px minmax(0,1fr);gap:1px;
  background:var(--bg-0);
}
.meta-table>div+div{border-top:1px solid var(--line)}
.meta-table dt{
  padding:14px 18px;font-size:.78rem;letter-spacing:.08em;
  color:var(--accent);background:rgba(56,189,248,.03);
}
.meta-table dd{
  margin:0;padding:14px 18px;font-size:.86rem;color:var(--text-0);line-height:1.7;
}
.demo-slot{margin:20px 0 0}

/* ---------- 截图 ---------- */
.shots{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.shot{
  display:block;overflow:hidden;text-decoration:none;
  border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);
  transition:transform .2s ease,border-color .2s ease;
}
.shot:hover{transform:translateY(-2px);border-color:var(--accent)}
.shot img{display:block;width:100%;height:auto;background:#0a0f1a}
.shot__cap{
  display:block;padding:12px 16px;
  font-size:.86rem;line-height:1.6;color:var(--text-1);
}
.shot__cap b{color:var(--text-0);margin-right:8px}

/* ---------- 作品 02 ---------- */
.comfy{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);
  gap:32px;align-items:start;
}
.comfy__text .tag{margin-bottom:18px}
.comfy__note{
  margin:20px 0 0;padding-left:14px;
  border-left:2px solid var(--accent-dim);
  font-size:.92rem;color:var(--text-2);font-style:italic;
}
.gen{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:10px}
.gen a{
  display:block;overflow:hidden;
  border:1px solid var(--line);border-radius:10px;background:var(--panel);
  transition:border-color .2s ease,transform .2s ease;
}
.gen a:hover{border-color:var(--accent);transform:translateY(-2px)}
.gen img{display:block;width:100%;height:auto;aspect-ratio:3/4;object-fit:cover}
.gen__note{margin:10px 0 0;font-size:.8rem;color:var(--text-2)}

/* ---------- 联系与页脚 ---------- */
.section--contact{padding-bottom:96px}
.contact__meta{
  margin:0 0 26px;font-size:.95rem;color:var(--text-2);line-height:2;
}
.contact__hint{margin:14px 0 0;font-size:.82rem;color:var(--text-2)}
.footer{border-top:1px solid var(--line);padding:26px 0}
.footer__inner{
  display:flex;justify-content:space-between;gap:16px;
  font-size:.82rem;color:var(--text-2);
}

/* ---------- 灯箱 ---------- */
.lightbox{
  position:fixed;inset:0;z-index:100;display:none;padding:32px;
  background:rgba(4,7,14,.94);
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
  cursor:zoom-out;
}
.lightbox.is-open{display:flex;align-items:center;justify-content:center}
.lightbox img{
  max-width:100%;max-height:100%;cursor:default;
  border:1px solid var(--line-strong);border-radius:10px;
}
.lightbox__hint{
  position:absolute;bottom:18px;left:0;right:0;text-align:center;
  font-family:var(--mono);font-size:.78rem;color:var(--text-2);
}

/* ---------- 轻提示（复制邮箱成功） ---------- */
.toast{
  position:fixed;left:50%;bottom:28px;z-index:120;
  max-width:calc(100vw - 48px);
  margin:0;padding:11px 18px;border-radius:999px;
  transform:translate(-50%,12px);opacity:0;pointer-events:none;
  background:rgba(11,18,32,.94);border:1px solid var(--line-strong);
  color:var(--text-0);font-size:.84rem;text-align:center;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  transition:opacity .25s ease,transform .25s ease;
}
.toast.is-visible{opacity:1;transform:translate(-50%,0)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3>.card:last-child{grid-column:1 / -1}
  .comfy{grid-template-columns:minmax(0,1fr);gap:26px}
  .hero{padding:132px 0 76px}
  .section{padding:72px 0}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .nav__links{display:none}
  .grid-2,.grid-3,.grid-4,.shots{grid-template-columns:minmax(0,1fr)}
  .grid-3>.card:last-child{grid-column:auto}
  .metrics{grid-template-columns:minmax(0,1fr)}
  .gen{grid-template-columns:repeat(2,minmax(0,1fr))}
  .statusbar{grid-template-columns:minmax(0,1fr)}
  .hero{padding:112px 0 56px}
  .hero__claim{max-width:none}
  .section{padding:56px 0}
  .section__title{margin-bottom:18px}
  .sub{margin-top:48px}
  .meta-table>div{grid-template-columns:minmax(0,1fr)}
  .meta-table dt{padding-bottom:4px;background:transparent}
  .meta-table dd{padding-top:0}
  .layer{padding:18px 18px 18px 60px}
  .layer__id{left:18px;top:18px}
  .lightbox{padding:12px}
  .footer__inner{flex-direction:column;gap:6px}
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation:none!important;
    transition:none!important;
  }
  .js-ready [data-reveal],
  .js-ready .layer{opacity:1!important;transform:none!important}
  .btn:hover{transform:none}
  .btn:hover::after{transform:translateX(-120%)}
}