/* 特效详情页：与首页同一套配色 */
:root{
  --bg:#08080f; --bg2:#0d0d1a; --surface:#141428; --surface2:#1b1b34;
  --text:#e8e8f5; --muted:#9a9ac0; --dim:#7a7a9a;
  --accent1:#ff6b9d; --accent2:#4ecdc4; --accent3:#ffe66d; --accent5:#6c8cff;
  --border:rgba(255,255,255,.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  font-family:'Segoe UI',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  background:radial-gradient(circle at 20% 0%,#16162e 0%,var(--bg) 55%);
  color:var(--text); line-height:1.75; min-height:100vh;
}
a{color:var(--accent2);text-decoration:none}
a:hover{text-decoration:underline}

/* 顶部 */
.topbar{position:sticky;top:0;z-index:100;background:rgba(8,8,15,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.topbar-inner{max-width:900px;margin:0 auto;padding:0 1.5rem;height:60px;
  display:flex;align-items:center;gap:1rem}
.brand{display:flex;align-items:center;gap:.5rem;color:var(--text);font-weight:700;letter-spacing:.03em}
.brand:hover{text-decoration:none}
.brand-icon{width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--accent1),var(--accent2));font-size:.95rem;
  box-shadow:0 0 14px rgba(255,107,157,.45)}
.topnav{margin-left:auto;font-size:.9rem}
.topnav a{color:var(--muted);padding:.4rem .8rem;border-radius:16px}
.topnav a:hover{background:rgba(255,255,255,.06);color:#fff;text-decoration:none}
.lang-switch{background:rgba(108,140,255,.12);color:var(--accent5);border:1px solid rgba(108,140,255,.35);
  border-radius:16px;padding:.35rem .9rem;font-size:.85rem;font-weight:700;font-family:inherit;
  cursor:pointer;transition:all .2s;white-space:nowrap}
.lang-switch:hover{background:rgba(108,140,255,.28);color:#fff}

/* 正文容器 */
.wrap{max-width:900px;margin:0 auto;padding:2rem 1.5rem 1rem}

/* 面包屑 */
.crumbs{font-size:.82rem;color:var(--dim);margin-bottom:1.6rem;display:flex;gap:.5rem;flex-wrap:wrap}
.crumbs a{color:var(--dim)}
.crumbs a:hover{color:var(--accent2)}
.crumbs .here{color:var(--muted)}
.crumbs .sep{opacity:.4}

/* 指回主题长文：详解页是演示页，内容是长文 */
.guide-back{display:flex;flex-direction:column;gap:.15rem;padding:.75rem 1rem;margin-bottom:1.6rem;
  border-radius:12px;background:rgba(108,140,255,.08);border:1px solid rgba(108,140,255,.22);transition:all .2s}
.guide-back:hover{background:rgba(108,140,255,.16);text-decoration:none;transform:translateY(-1px)}
.gb-label{font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent5)}
.gb-title{font-size:.95rem;color:#e2e2f5;font-weight:600;line-height:1.45}

/* 标题区 */
.head{text-align:center;margin-bottom:2rem}
.head .icon{font-size:3.4rem;line-height:1;margin-bottom:.6rem;
  filter:drop-shadow(0 0 20px rgba(255,255,255,.25))}
.head h1{font-size:clamp(1.9rem,5vw,2.8rem);font-weight:800;letter-spacing:.02em;line-height:1.25;
  background:linear-gradient(120deg,var(--accent3),var(--accent1),var(--accent2));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  margin-bottom:.8rem}
.lead{color:var(--muted);font-size:1.08rem;max-width:640px;margin:0 auto 1.2rem}
.tags{display:flex;gap:.5rem;justify-content:center;flex-wrap:wrap}
.tag{font-size:.76rem;color:var(--accent3);background:rgba(255,230,109,.1);
  border:1px solid rgba(255,230,109,.25);padding:.22rem .7rem;border-radius:12px;letter-spacing:.02em}

/* 演示舞台 */
.stage-box{background:linear-gradient(160deg,var(--surface),var(--surface2));
  border:1px solid var(--border);border-radius:18px;overflow:hidden;margin-bottom:2.6rem;
  box-shadow:0 18px 50px rgba(0,0,0,.4)}
.stage-bar{display:flex;align-items:center;gap:.4rem;padding:.6rem .9rem;
  background:rgba(255,255,255,.04);border-bottom:1px solid var(--border)}
.stage-bar .dot{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.18)}
.stage-bar .dot:first-child{background:#ff6b6b}
.stage-bar .dot:nth-child(2){background:#ffd166}
.stage-bar .dot:nth-child(3){background:#4ecdc4}
.stage-label{margin-left:.6rem;font-size:.78rem;color:var(--dim);letter-spacing:.04em;text-transform:uppercase}
.restart{margin-left:auto;background:rgba(255,255,255,.06);border:1px solid var(--border);
  color:var(--muted);font-family:inherit;font-size:.78rem;padding:.3rem .8rem;border-radius:14px;
  cursor:pointer;transition:all .2s}
.restart:hover{background:rgba(255,255,255,.14);color:#fff}
.stage{position:relative;height:min(52vh,400px);min-height:300px;overflow:hidden;
  background:#05050c;display:block}
.stage > *{max-width:100%}
.stage-hint{font-size:.8rem;color:var(--dim);padding:.7rem .9rem;border-top:1px solid var(--border);
  background:rgba(0,0,0,.2)}

/* 内容块 */
.block{margin-bottom:2.4rem}
.block h2{font-size:1.35rem;font-weight:700;margin-bottom:.9rem;letter-spacing:.01em;
  color:#f0f0ff;display:flex;align-items:center;gap:.5rem}
.block h2::before{content:'';width:4px;height:1.15em;border-radius:2px;
  background:linear-gradient(180deg,var(--accent1),var(--accent5))}
.block p{color:#b9b9d4;font-size:1.02rem}
.block-note{color:var(--dim)!important;font-size:.88rem!important;margin-bottom:.8rem}

/* 可调参数 */
.tweaks{list-style:none;display:flex;flex-direction:column;gap:.7rem}
.tweaks li{display:flex;gap:.75rem;align-items:flex-start;background:rgba(255,255,255,.03);
  border:1px solid var(--border);border-radius:12px;padding:.8rem 1rem;color:#c4c4dd;font-size:.96rem}
.tweaks .num{flex:0 0 22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:.75rem;font-weight:700;background:rgba(78,205,196,.15);color:var(--accent2);
  border:1px solid rgba(78,205,196,.3);margin-top:.15rem}

/* 代码 */
.code-wrap{background:#05050c;border:1px solid var(--border);border-radius:14px;overflow:hidden}
.code-bar{display:flex;align-items:center;justify-content:space-between;padding:.55rem .9rem;
  background:rgba(255,255,255,.04);border-bottom:1px solid var(--border)}
.code-bar span{font-size:.78rem;color:var(--dim);font-family:Consolas,Monaco,monospace}
.code-bar button{background:rgba(255,230,109,.12);color:var(--accent3);border:1px solid rgba(255,230,109,.25);
  padding:.32rem .85rem;border-radius:14px;font-size:.78rem;font-weight:600;font-family:inherit;
  cursor:pointer;transition:all .2s}
.code-bar button:hover{background:rgba(255,230,109,.25)}
pre.code-block{margin:0;padding:1rem;max-height:340px;overflow:auto;font-size:.78rem;line-height:1.6;
  color:#c8c8e8;font-family:Consolas,Monaco,monospace;white-space:pre-wrap;word-break:break-all}

/* 上一页 / 下一页 */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin:2.6rem 0}
.pn{display:flex;flex-direction:column;gap:.2rem;padding:.9rem 1.1rem;border-radius:14px;
  background:rgba(255,255,255,.03);border:1px solid var(--border);transition:all .2s}
.pn:hover{background:rgba(255,255,255,.07);text-decoration:none;transform:translateY(-2px)}
.pn .dir{font-size:.75rem;color:var(--dim);letter-spacing:.04em}
.pn strong{font-size:.98rem;color:var(--text);font-weight:600}
.pn.next{text-align:right}
.pn.empty{border:none;background:none}

/* CTA */
.cta{text-align:center;background:linear-gradient(160deg,rgba(255,107,157,.1),rgba(108,140,255,.1));
  border:1px solid rgba(255,255,255,.1);border-radius:18px;padding:1.6rem 1.2rem;margin-bottom:2.4rem}
.cta p{color:var(--muted);font-size:.95rem;margin-bottom:1rem}
.btn{display:inline-block;background:linear-gradient(135deg,var(--accent1),#a37eba);color:#fff;
  padding:.7rem 1.8rem;border-radius:26px;font-weight:700;font-size:.95rem;
  box-shadow:0 8px 24px rgba(255,107,157,.35);transition:all .25s}
.btn:hover{transform:translateY(-2px);text-decoration:none;box-shadow:0 12px 32px rgba(255,107,157,.5)}

/* 页脚 */
.foot{text-align:center;padding:2.2rem 1.5rem;border-top:1px solid var(--border);
  color:var(--dim);font-size:.85rem;margin-top:1rem}
.foot-links{display:flex;gap:1.5rem;justify-content:center;align-items:center;flex-wrap:wrap;margin-top:.7rem}
.foot-links a{color:var(--dim)}
.foot-links a:hover{color:var(--accent1);text-decoration:none}
.foot-btn{appearance:none;background:none;border:0;padding:0;font:inherit;color:var(--dim);cursor:pointer}
.foot-btn:hover{color:var(--accent1)}

/* 语言切换：只显示当前语言的块 */
html[lang="en"] [data-lang="zh"],
html[lang="zh-CN"] [data-lang="en"]{display:none}

@media (max-width:640px){
  .wrap{padding:1.4rem 1rem 1rem}
  .stage{height:min(46vh,320px);min-height:260px}
  .pager{grid-template-columns:1fr}
  .pn.next{text-align:left}
  .topnav{display:none}
  .head .icon{font-size:2.8rem}
}