/* ============================================================
   个人作品集 · 样式（纯静态，无外部依赖，离线可用）
   设计基座：深色 + 暖色强调 + 玻璃拟态 + 克制的动效
   ============================================================ */
:root{
  --bg:#08090c; --bg-soft:#0d1015; --panel:rgba(255,255,255,.045);
  --panel-strong:rgba(255,255,255,.07); --line:rgba(255,255,255,.10);
  --fg:#eef1f5; --fg-dim:#a6adba; --fg-mute:#6d7482;
  --accent:#f0864a; --accent-2:#ffb27a; --accent-soft:rgba(240,134,74,.14);
  --ok:#5fd0a0; --warn:#f2c94c; --off:#7b8291;
  --r-sm:10px; --r:16px; --r-lg:22px; --r-xl:30px;
  --shadow:0 24px 60px -28px rgba(0,0,0,.85);
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --sans:"Inter","Segoe UI","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; min-height:100vh; display:flex; flex-direction:column; background:var(--bg); color:var(--fg); font-family:var(--sans);
  font-size:16px; line-height:1.7; -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
/* 背景光晕 */
.bg-fx{position:fixed; inset:0; z-index:0; pointer-events:none; overflow:hidden}
.bg-fx i{position:absolute; border-radius:50%; filter:blur(90px); opacity:.5}
.bg-fx i:nth-child(1){width:52vw;height:52vw;left:-12vw;top:-14vw;background:radial-gradient(circle,rgba(240,134,74,.30),transparent 62%)}
.bg-fx i:nth-child(2){width:44vw;height:44vw;right:-10vw;top:6vh;background:radial-gradient(circle,rgba(90,120,255,.22),transparent 62%)}
.bg-fx i:nth-child(3){width:60vw;height:60vw;left:18vw;bottom:-28vw;background:radial-gradient(circle,rgba(95,208,160,.16),transparent 62%)}
.grain{position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.035;
  background-image:radial-gradient(rgba(255,255,255,.9) .5px,transparent .5px);
  background-size:3px 3px}
main,header,footer{position:relative;z-index:2}

.wrap{width:min(1180px,92vw);margin:0 auto}

/* ---------- 顶栏 ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;backdrop-filter:blur(14px);
  background:linear-gradient(to bottom,rgba(8,9,12,.86),rgba(8,9,12,.42));
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s}
.nav.solid{border-bottom-color:var(--line);background:rgba(8,9,12,.92)}
.nav .inner{display:flex;align-items:center;gap:22px;height:66px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 4px var(--accent-soft),0 0 22px rgba(240,134,74,.55)}
.brand small{display:block;font-weight:400;font-size:11.5px;color:var(--fg-mute);letter-spacing:.6px}
.nav .links{margin-left:auto;display:flex;gap:6px;align-items:center}
.nav a.lnk{color:var(--fg-dim);text-decoration:none;font-size:14.5px;padding:9px 13px;border-radius:999px;
  white-space:nowrap;transition:color .2s,background .2s}
.nav a.lnk:hover{color:var(--fg);background:var(--panel)}
.nav a.lnk.active{color:var(--fg);background:var(--panel-strong)}
.progress{position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));transition:width .12s linear}

/* ---------- 通用 ---------- */
section{padding:84px 0}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12.5px;letter-spacing:2.4px;
  text-transform:uppercase;color:var(--accent-2);font-weight:600}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent);opacity:.8}
h1,h2,h3{line-height:1.18;margin:0;letter-spacing:-.02em}
h2.title{font-size:clamp(28px,3.6vw,44px);margin:16px 0 10px;font-weight:750}
.lead{color:var(--fg-dim);font-size:clamp(15.5px,1.35vw,18px);max-width:74ch}
.chip{display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:999px;
  border:1px solid var(--line);background:var(--panel);color:var(--fg-dim);font-size:12.5px}
.chip b{color:var(--fg);font-weight:600}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;backdrop-filter:blur(8px);transition:transform .35s cubic-bezier(.2,.7,.2,1),
  border-color .3s,background .3s,box-shadow .35s}
.card:hover{transform:translateY(-4px);border-color:rgba(240,134,74,.34);
  background:var(--panel-strong);box-shadow:var(--shadow)}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),
  transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.nowrap-lg{white-space:nowrap}
/* 防横向溢出：网格/弹性子项默认 min-width:auto 会被长内容顶宽，必须显式归零 */
.card,.pcard,.panel,.step,.kpi,.m,.st,.term,.chat,.msg{min-width:0}
.stagger>*{opacity:0;transform:translateY(18px);animation:rise .7s cubic-bezier(.2,.7,.2,1) forwards}
@keyframes rise{to{opacity:1;transform:none}}

/* ---------- Hero ---------- */
.hero{padding:138px 0 56px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.25fr .95fr;gap:52px;align-items:center}
.hero h1{font-size:clamp(34px,5.2vw,62px);font-weight:800;letter-spacing:-.03em}
.hero h1 .grad{background:linear-gradient(100deg,var(--accent),var(--accent-2) 55%,#ffd9b8);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{margin-top:20px;color:var(--fg-dim);font-size:clamp(16px,1.6vw,19px);max-width:60ch}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 22px;border-radius:999px;
  font-size:14.5px;font-weight:600;text-decoration:none;border:1px solid var(--line);
  color:var(--fg);background:var(--panel);transition:transform .2s,background .25s,border-color .25s}
.btn:hover{transform:translateY(-2px);border-color:rgba(240,134,74,.5);background:var(--panel-strong)}
.btn.primary{background:linear-gradient(100deg,var(--accent),#e06a2c);border-color:transparent;color:#1a1005;
  box-shadow:0 14px 34px -14px rgba(240,134,74,.75)}
.btn.primary:hover{filter:brightness(1.06)}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:36px}
.hero-stats .st{padding:15px 17px;border-radius:var(--r);border:1px solid var(--line);background:var(--panel)}
.hero-stats .n{font-size:26px;font-weight:800;letter-spacing:-.02em}
.hero-stats .l{font-size:12.5px;color:var(--fg-mute)}
/* 终端卡 */
.term{border-radius:var(--r-lg);border:1px solid var(--line);background:linear-gradient(180deg,#0e1116,#0a0c10);
  box-shadow:var(--shadow);overflow:hidden}
.term .bar{display:flex;gap:7px;align-items:center;padding:12px 14px;border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.02)}
.term .bar i{width:11px;height:11px;border-radius:50%;background:#3a3f4a}
.term .bar i:nth-child(1){background:#ff5f57}.term .bar i:nth-child(2){background:#febc2e}.term .bar i:nth-child(3){background:#28c840}
.term .bar span{margin-left:8px;font-family:var(--mono);font-size:12px;color:var(--fg-mute)}
.term pre{margin:0;padding:18px 18px 22px;font-family:var(--mono);font-size:12.8px;line-height:1.85;
  color:#cfd6e2;overflow:auto;max-height:330px}
.term .k{color:var(--accent-2)}.term .s{color:var(--ok)}.term .c{color:var(--fg-mute)}

/* ---------- 项目卡 ---------- */
.pgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:38px}
.pcard{position:relative;overflow:hidden;display:flex;flex-direction:column;gap:16px;cursor:pointer}
.pcard:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.detail-btn{border:1px solid rgba(240,134,74,.45);background:var(--accent-soft);padding:8px 15px;
  border-radius:999px;white-space:nowrap;transition:background .2s,transform .2s}
.pcard:hover .detail-btn{background:rgba(240,134,74,.22);transform:translateX(2px)}
.pcard .glow{position:absolute;inset:-1px;border-radius:inherit;opacity:0;transition:opacity .4s;
  background:radial-gradient(420px 200px at var(--mx,50%) var(--my,0%),rgba(240,134,74,.16),transparent 70%)}
.pcard:hover .glow{opacity:1}
.pcard .top{display:flex;align-items:flex-start;gap:14px;position:relative}
.pcard .badge{flex:0 0 auto;width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  font-weight:800;background:var(--accent-soft);color:var(--accent-2);border:1px solid rgba(240,134,74,.28)}
.pcard h3{font-size:19.5px;font-weight:700}
.pcard .meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:7px}
.pcard p{margin:0;color:var(--fg-dim);font-size:14.6px}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:4px}
.m{padding:11px 12px;border-radius:var(--r-sm);border:1px solid var(--line);background:rgba(255,255,255,.025)}
.m .v{font-weight:800;font-size:16.5px;letter-spacing:-.01em}
.m .t{font-size:11.6px;color:var(--fg-mute);line-height:1.45}
.pcard .foot{display:flex;gap:10px;align-items:center;margin-top:auto;padding-top:6px}
.status{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--fg-mute)}
.status .led{width:8px;height:8px;border-radius:50%;background:var(--off);box-shadow:0 0 0 3px rgba(255,255,255,.05)}
.status.on .led{background:var(--ok);box-shadow:0 0 0 3px rgba(95,208,160,.16)}
.status.off .led{background:#8a5a5a}
.link{color:var(--accent-2);text-decoration:none;font-weight:600;font-size:14px}
.link:hover{text-decoration:underline}

/* ---------- 指标区 ---------- */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:34px}
.kpi{padding:22px}
.kpi .n{font-size:clamp(26px,3vw,38px);font-weight:800;letter-spacing:-.03em;
  background:linear-gradient(100deg,#fff,#c9d2e0);-webkit-background-clip:text;background-clip:text;color:transparent}
.kpi .u{font-size:15px;color:var(--accent-2);font-weight:700;margin-left:2px}
.kpi .l{color:var(--fg-dim);font-size:13.6px;margin-top:6px}
.kpi .src{color:var(--fg-mute);font-size:11.5px;margin-top:10px;font-family:var(--mono);overflow-wrap:anywhere;line-height:1.55}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-top:34px}
.step{padding:18px 16px;border-radius:var(--r);border:1px solid var(--line);background:var(--panel);
  transition:transform .3s,border-color .3s,background .3s;position:relative}
.step:hover{transform:translateY(-3px);border-color:rgba(240,134,74,.34);background:var(--panel-strong)}
.step .i{font-family:var(--mono);font-size:12px;color:var(--accent-2)}
.step h4{margin:8px 0 6px;font-size:15px}
.step p{margin:0;font-size:12.8px;color:var(--fg-mute);line-height:1.6}

/* ---------- AI 导览 ---------- */
.guide{display:grid;grid-template-columns:1.05fr 1fr;gap:26px;align-items:start;margin-top:34px}
.chat{border-radius:var(--r-lg);border:1px solid var(--line);background:linear-gradient(180deg,#0e1116,#0a0c10);
  box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;min-height:430px}
.chat .head{display:flex;align-items:center;gap:11px;padding:14px 16px;border-bottom:1px solid var(--line)}
.chat .av{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:var(--accent-soft);
  color:var(--accent-2);font-weight:800;font-size:13px}
.chat .head b{font-size:14.5px}
.chat .head small{display:block;color:var(--fg-mute);font-size:11.5px}
.chat .body{padding:18px;display:flex;flex-direction:column;gap:12px;overflow:auto;flex:1;max-height:430px}
.msg{max-width:88%;padding:12px 15px;border-radius:16px;font-size:14.3px;line-height:1.7}
.msg.me{align-self:flex-end;background:linear-gradient(100deg,var(--accent),#e06a2c);color:#20140a;border-bottom-right-radius:5px}
.msg.ai{align-self:flex-start;background:var(--panel-strong);border:1px solid var(--line);border-bottom-left-radius:5px}
.msg.ai .jump{display:block;margin-top:9px;font-size:13px;color:var(--accent-2);text-decoration:none;font-weight:600}
.qs{display:flex;flex-wrap:wrap;gap:9px;padding:14px 16px;border-top:1px solid var(--line);background:rgba(255,255,255,.02)}
.qs button{cursor:pointer;font:inherit;font-size:13px;color:var(--fg-dim);background:var(--panel);
  border:1px solid var(--line);border-radius:999px;padding:8px 14px;transition:.2s}
.qs button:hover{color:var(--fg);border-color:rgba(240,134,74,.45);transform:translateY(-1px)}

/* ---------- 时间线 ---------- */
.tl{position:relative;margin-top:34px;padding-left:26px}
.tl::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:1px;
  background:linear-gradient(to bottom,var(--accent),transparent)}
.tl .it{position:relative;padding:0 0 26px 20px}
.tl .it::before{content:"";position:absolute;left:-24px;top:7px;width:11px;height:11px;border-radius:50%;
  background:var(--bg);border:2px solid var(--accent)}
.tl h4{margin:0 0 4px;font-size:16px}
.tl .when{font-family:var(--mono);font-size:12px;color:var(--fg-mute)}
.tl p{margin:6px 0 0;color:var(--fg-dim);font-size:14.4px}

/* ---------- 详情页 ---------- */
.detail-hero{padding:132px 0 40px}
.crumb{font-size:13px;color:var(--fg-mute);margin-bottom:14px}
.crumb a{color:var(--fg-dim);text-decoration:none}
.crumb a:hover{color:var(--accent-2)}
.two{display:grid;grid-template-columns:1.6fr 1fr;gap:26px;align-items:start}
.panel{padding:22px;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--panel);overflow-x:auto}
.panel h3{font-size:17px;margin-bottom:12px}
ul.clean{list-style:none;padding:0;margin:0}
ul.clean li{position:relative;padding:7px 0 7px 22px;color:var(--fg-dim);font-size:14.5px}
ul.clean li::before{content:"";position:absolute;left:4px;top:15px;width:7px;height:7px;border-radius:2px;
  background:var(--accent);opacity:.85}
table.tbl{width:100%;border-collapse:collapse;font-size:14px;margin-top:6px}
table.tbl th,table.tbl td{text-align:left;padding:11px 10px;border-bottom:1px solid var(--line);vertical-align:top}
table.tbl th{color:var(--fg-mute);font-weight:600;font-size:12.5px;letter-spacing:.4px;text-transform:uppercase}
table.tbl td b{color:var(--fg)}
.note{font-size:12.8px;color:var(--fg-mute);border-left:2px solid var(--accent);padding-left:12px;margin-top:16px}

/* ---------- 页脚 ---------- */
main{flex:1 0 auto}
footer{margin-top:auto;padding:56px 0 70px;border-top:1px solid var(--line);color:var(--fg-mute);font-size:13.4px}
footer .row{display:flex;gap:18px;flex-wrap:wrap;justify-content:space-between;align-items:center}

/* ---------- 响应式 ---------- */
@media (max-width:980px){
  .hero-grid>*,.two>*,.guide>*,.flow>*{min-width:0}
  .term pre{white-space:pre-wrap;word-break:break-word}
  .nowrap-lg{white-space:normal}
  .hero-grid,.two,.guide{grid-template-columns:1fr}
  .pgrid{grid-template-columns:1fr}
  .flow{grid-template-columns:repeat(3,1fr)}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .hero-stats{grid-template-columns:1fr 1fr}
  section{padding:76px 0}
}
@media (max-width:620px){
  .nav .inner{gap:10px}
  .nav .links{gap:1px}
  .nav a.lnk{padding:7px 8px;font-size:12.8px}
  .nav .links a.lnk:nth-child(n+4){display:none}   /* 手机端只留：项目 / 指标 / 工作流程 */
  .hero-stats,.kpi-grid{grid-template-columns:1fr}   /* 手机端单列，避免窄列把字挤断 */
  .hero-stats .n{font-size:23px}
  .wrap{width:92vw}
  section{padding:64px 0}
  .hero{padding:120px 0 44px}
  .qn{display:none}
  .flow{grid-template-columns:1fr 1fr}
  .metrics{grid-template-columns:1fr 1fr}
  .nav .links a.lnk{padding:8px 9px;font-size:13px}
  .brand small{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 真实案例回放 ---------- */
.rp-trace{border-radius:var(--r-lg);border:1px solid var(--line);background:linear-gradient(180deg,#0e1116,#0a0c10);
  box-shadow:var(--shadow);overflow:hidden;margin-top:14px}
.rp-head{display:flex;align-items:center;gap:10px;padding:13px 16px;border-bottom:1px solid var(--line);
  font-size:13.5px;color:var(--fg-dim)}
.rp-head b{color:var(--fg)}
.rp-body{padding:16px 16px 6px}
.rp-step{position:relative;padding:0 0 16px 26px;opacity:0;transform:translateY(8px);
  animation:rpIn .45s cubic-bezier(.2,.7,.2,1) forwards}
.rp-step::before{content:"";position:absolute;left:6px;top:6px;bottom:-4px;width:1px;background:var(--line)}
.rp-step:last-child::before{display:none}
.rp-step .dot{position:absolute;left:0;top:4px;width:13px;height:13px;border-radius:50%;
  background:var(--accent-soft);border:2px solid var(--accent)}
.rp-step .nd{font-weight:700;font-size:14px}
.rp-step .ms{font-family:var(--mono);font-size:11.5px;color:var(--fg-mute);margin-left:8px}
.rp-step .txt{font-size:13.6px;color:var(--fg-dim);margin-top:5px;white-space:pre-wrap;word-break:break-word}
.rp-call{display:inline-block;font-family:var(--mono);font-size:12.4px;color:var(--accent-2);
  background:var(--accent-soft);border:1px solid rgba(240,134,74,.28);border-radius:8px;padding:3px 9px;margin-top:6px}
.rp-final{margin:6px 16px 16px;padding:14px 16px;border-radius:14px;background:var(--panel-strong);
  border:1px solid var(--line);white-space:pre-wrap;font-size:14.2px;line-height:1.75}
.rp-note{margin:12px 16px 16px;font-size:12.3px;color:var(--fg-mute);border-left:2px solid var(--accent);padding-left:10px}
@keyframes rpIn{to{opacity:1;transform:none}}

/* ---------- 界面实拍 ---------- */
.shots{display:grid;grid-template-columns:1fr;gap:16px}
.shot{margin:0;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);background:#0b0e13;cursor:zoom-in;
  transition:transform .3s cubic-bezier(.2,.7,.2,1),border-color .3s}
.shot:hover{transform:translateY(-2px);border-color:rgba(240,134,74,.4)}
.shot img{display:block;width:100%;height:auto}
.shot figcaption{padding:10px 13px;font-size:12.6px;color:var(--fg-mute);border-top:1px solid var(--line)}
.lightbox{position:fixed;inset:0;z-index:99;background:rgba(4,6,9,.92);display:flex;align-items:center;justify-content:center;
  flex-direction:column;gap:14px;cursor:zoom-out;backdrop-filter:blur(4px);animation:rpIn .25s ease-out}
.lightbox img{max-width:94vw;max-height:86vh;border-radius:12px;border:1px solid var(--line);box-shadow:var(--shadow)}
.lightbox .lb-hint{font-size:12.6px;color:var(--fg-mute)}

.shots.strip, #shotsStrip{grid-template-columns:repeat(3,1fr);align-items:stretch}
#shotsStrip .shot{display:flex;flex-direction:column}
#shotsStrip .shot img{height:212px;object-fit:cover;object-position:top center}
#shotsStrip .shot figcaption{margin-top:auto}
@media (max-width:980px){#shotsStrip{grid-template-columns:1fr}}