/* ============================================================
   Happy Life Beauty Clinic — giao diện dùng chung cho mục kiến thức
   ============================================================ */
:root{
  --canvas:#F6F1E8;--canvas-deep:#EFE7D6;--panel:#FFFDF8;
  --accent:#8A6221;--accent-hover:#6E4D18;--accent-muted:#D8C8A8;
  --border-soft:#E3D8C0;--lilac-soft:#EDE7EF;--lilac:#A898B0;
  --text-primary:#2A2118;--text-secondary:#6B5D4C;
  --ease:cubic-bezier(.22,.61,.36,1);--ease-soft:cubic-bezier(.4,0,.2,1);
  --shell:min(1180px, calc(100vw - 3rem));--r:18px;
  --f-display:"Newsreader",Georgia,"Times New Roman",serif;
  --f-body:"Be Vietnam Pro","Segoe UI",system-ui,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html,body{overflow-x:hidden;overflow-x:clip}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--canvas);color:var(--text-primary);
  font-family:var(--f-body);font-size:17px;line-height:1.68;
  -webkit-font-smoothing:antialiased;opacity:0;transition:opacity .7s var(--ease);
}
body.lit{opacity:1}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{margin:0;font-family:var(--f-display);font-weight:500;line-height:1.16;letter-spacing:-.012em}
p{margin:0}
a{color:inherit}

.env{position:fixed;inset:0;z-index:-2;pointer-events:none;background:var(--canvas)}
.env::before,.env::after{content:"";position:absolute;border-radius:50%;filter:blur(90px)}
.env::before{width:78vw;height:78vw;left:-22vw;top:-26vw;
  background:radial-gradient(circle,rgba(216,200,168,.55) 0%,rgba(216,200,168,0) 68%);
  animation:drift 84s var(--ease-soft) -20s infinite alternate}
.env::after{width:64vw;height:64vw;right:-18vw;bottom:-22vw;
  background:radial-gradient(circle,rgba(168,152,176,.30) 0%,rgba(168,152,176,0) 66%);
  animation:drift 96s var(--ease-soft) -44s infinite alternate-reverse}
@keyframes drift{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(4vw,3vw,0) scale(1.12)}}
.grain{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.30;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E")}

.shell{width:var(--shell);margin-inline:auto}
section{position:relative;padding:clamp(3rem,6vw,5rem) 0}
.kicker{font-family:var(--f-mono);font-size:.72rem;font-weight:500;letter-spacing:.19em;
  text-transform:uppercase;color:var(--accent);display:flex;align-items:center;gap:.85rem;margin-bottom:1.15rem}
.kicker::before{content:"";height:1px;width:34px;background:var(--accent);flex:none}
h2{font-size:clamp(1.8rem,3.8vw,2.6rem)}
.lede{font-size:clamp(1.05rem,1.6vw,1.2rem);color:var(--text-secondary);max-width:62ch;margin-top:1.15rem}

.beam{position:relative;height:1px;background:var(--border-soft)}
.beam::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,var(--accent) 22%,var(--accent) 78%,transparent);
  transform:scaleX(var(--bx,0));transform-origin:left;transition:transform 1.3s var(--ease);
  box-shadow:0 0 12px rgba(138,98,33,.45)}
.in .beam{--bx:1}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;
  font-family:var(--f-body);font-size:.97rem;font-weight:600;
  padding:.92rem 1.6rem;border-radius:999px;text-decoration:none;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .35s var(--ease),color .35s var(--ease),
             border-color .35s var(--ease),transform .35s var(--ease),box-shadow .35s var(--ease)}
.btn svg{width:17px;height:17px;flex:none}
.btn-solid{background:var(--accent);color:#FFFBF2;box-shadow:0 6px 22px -10px rgba(138,98,33,.9)}
.btn-solid:hover{background:var(--accent-hover);transform:translateY(-2px)}
.btn-line{background:transparent;color:var(--accent);border-color:var(--accent)}
.btn-line:hover{background:var(--accent);color:#FFFBF2;transform:translateY(-2px)}
.btn-row{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2rem}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-9999px;top:0;background:var(--accent);color:#FFFBF2;
  padding:.8rem 1.2rem;border-radius:0 0 10px 0;z-index:200;font-weight:600}
.skip:focus{left:0}

/* ---------- thanh điều hướng ---------- */
.nav{position:sticky;top:0;z-index:100;background:rgba(246,241,232,.78);
  backdrop-filter:blur(14px);border-bottom:1px solid transparent;
  transition:border-color .45s var(--ease),background-color .45s var(--ease)}
.nav.stuck{border-bottom-color:var(--border-soft);background:rgba(246,241,232,.93)}
.nav-in{display:flex;align-items:center;gap:1.6rem;height:74px}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;flex:none}
.brand img{height:38px;width:auto}
.brand-txt{display:block;line-height:1.2}
.brand b{display:block;font-family:var(--f-display);font-size:1.18rem;font-weight:600}
.brand i{font-style:normal;font-family:var(--f-mono);font-size:.575rem;letter-spacing:.17em;
  text-transform:uppercase;color:var(--text-secondary);display:block;margin-top:1px}
.nav-links{display:flex;gap:1.5rem;margin-left:auto;align-items:baseline}
.nav-links a{text-decoration:none;font-size:.93rem;color:var(--text-secondary);
  position:relative;padding-bottom:3px;transition:color .3s var(--ease)}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--accent);transform:scaleX(0);transform-origin:right;transition:transform .4s var(--ease)}
.nav-links a:hover{color:var(--accent)}
.nav-links a:hover::after{transform:scaleX(1);transform-origin:left}
.nav-links a.here{color:var(--accent)}
.nav-links a.here::after{transform:scaleX(1)}
.nav .btn{padding:.6rem 1.15rem;font-size:.88rem}
.nav-cta-txt{display:inline}

.burger{display:none;flex:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--accent);background:transparent;cursor:pointer;
  align-items:center;justify-content:center;padding:0;transition:background-color .3s var(--ease)}
.burger span{display:block;width:17px;height:1.5px;background:var(--accent);position:relative;
  transition:transform .35s var(--ease),background-color .2s var(--ease)}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:17px;height:1.5px;
  background:var(--accent);transition:transform .35s var(--ease),top .25s var(--ease)}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.nav.menu-open .burger span{background:transparent}
.nav.menu-open .burger span::before{top:0;transform:rotate(45deg)}
.nav.menu-open .burger span::after{top:0;transform:rotate(-45deg)}
.sheet{display:none;position:absolute;left:0;right:0;top:100%;background:var(--canvas);
  border-bottom:1px solid var(--border-soft);box-shadow:0 24px 40px -28px rgba(42,33,24,.55);
  overflow:hidden;height:0;transition:height .42s var(--ease)}
.sheet-in{padding:.6rem 0 1.5rem}
.sheet a{display:block;padding:.95rem 0;text-decoration:none;font-size:1.02rem;
  color:var(--text-primary);border-bottom:1px solid var(--border-soft)}
.sheet a:last-of-type{border-bottom:0}

/* ---------- vụn đường dẫn ---------- */
.crumb{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--text-secondary);margin-bottom:1.4rem}
.crumb a{color:var(--accent);text-decoration:none}
.crumb a:hover{text-decoration:underline}

/* ---------- danh sách bài ---------- */
.klist{display:grid;grid-template-columns:repeat(2,1fr);gap:1.4rem;margin-top:3rem}
.kcard{background:var(--panel);border:1px solid var(--border-soft);border-radius:var(--r);
  padding:1.9rem;display:flex;flex-direction:column;text-decoration:none;position:relative;overflow:hidden;
  transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s var(--ease)}
.kcard::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--accent),transparent);
  transform:scaleX(0);transition:transform .5s var(--ease)}
.kcard:hover{transform:translateY(-4px);box-shadow:0 22px 46px -28px rgba(42,33,24,.45);border-color:var(--accent-muted)}
.kcard:hover::before{transform:scaleX(1)}
.kcard i{font-style:normal;font-family:var(--f-mono);font-size:.66rem;letter-spacing:.15em;
  text-transform:uppercase;color:var(--accent);display:block;margin-bottom:.7rem}
.kcard h2{font-size:1.32rem;line-height:1.3;margin-bottom:.6rem}
.kcard p{font-size:.95rem;color:var(--text-secondary);line-height:1.6;flex:1}
.kcard .more{margin-top:1.2rem;font-family:var(--f-mono);font-size:.68rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent);display:flex;align-items:center;gap:.5rem}
.kcard .more::after{content:"";width:16px;height:1px;background:var(--accent);
  transition:width .35s var(--ease)}
.kcard:hover .more::after{width:26px}

/* ---------- bài viết ---------- */
.art-head{padding:clamp(2.2rem,4vw,3.4rem) 0 clamp(1.6rem,3vw,2.4rem)}
.art-head h1{font-size:clamp(2rem,4.4vw,3.1rem);letter-spacing:-.022em;max-width:22ch}
.art-head .lede{max-width:58ch;font-size:clamp(1.06rem,1.7vw,1.24rem)}
.art-meta{display:flex;flex-wrap:wrap;gap:.55rem 1.6rem;margin-top:2rem;
  font-family:var(--f-mono);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--text-secondary)}
.art-meta span{display:flex;align-items:center;gap:.55rem}
.art-meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);flex:none}

.art-wrap{display:grid;grid-template-columns:minmax(0,1fr) 17rem;gap:clamp(2rem,5vw,4rem);
  align-items:start;padding-bottom:clamp(3rem,6vw,5rem)}
.prose{max-width:70ch;font-size:1.04rem;line-height:1.78}
.prose h2{font-size:clamp(1.4rem,2.6vw,1.85rem);margin:2.8rem 0 .9rem;scroll-margin-top:6rem}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:1.16rem;margin:1.9rem 0 .6rem;color:var(--accent)}
.prose p{margin-bottom:1.15rem;color:var(--text-secondary)}
.prose p strong,.prose li strong{color:var(--text-primary);font-weight:600}
.prose ul,.prose ol{margin:0 0 1.4rem;padding:0;list-style:none;display:grid;gap:.7rem}
.prose li{position:relative;padding-left:1.5rem;color:var(--text-secondary)}
.prose ul li::before{content:"";position:absolute;left:0;top:.72rem;width:9px;height:1px;background:var(--accent)}
.prose ol{counter-reset:n}
.prose ol li{counter-increment:n;padding-left:2rem}
.prose ol li::before{content:counter(n,decimal-leading-zero);position:absolute;left:0;top:.06rem;
  font-family:var(--f-mono);font-size:.7rem;color:var(--accent);letter-spacing:.08em}
.prose > .beam{margin:2.4rem 0}

.note{margin:2rem 0;padding:1.5rem 1.7rem;border-left:2px solid var(--accent);
  background:var(--lilac-soft);border-radius:0 12px 12px 0}
.note b{display:block;font-family:var(--f-display);font-size:1.08rem;font-weight:600;margin-bottom:.45rem}
.note p{margin:0;font-size:.98rem;color:var(--text-primary)}
.note.warn{background:#F7EBE2;border-left-color:#B4551F}
.note.warn b{color:#8E4218}

.when{margin:2.4rem 0;padding:1.8rem 1.9rem;background:var(--panel);
  border:1px solid var(--accent-muted);border-radius:var(--r)}
.when b{display:block;font-family:var(--f-display);font-size:1.15rem;font-weight:600;margin-bottom:.9rem}
.when ul{margin:0;padding:0;list-style:none;display:grid;gap:.65rem}
.when li{position:relative;padding-left:1.6rem;font-size:.97rem;color:var(--text-primary)}
.when li::before{content:"";position:absolute;left:0;top:.5rem;width:7px;height:7px;
  border-radius:50%;background:var(--accent)}

/* ---------- cột bên ---------- */
.aside{position:sticky;top:6rem;display:grid;gap:1.4rem}
.toc{background:var(--panel);border:1px solid var(--border-soft);border-radius:14px;padding:1.4rem 1.5rem}
.toc b{display:block;font-family:var(--f-mono);font-size:.66rem;letter-spacing:.15em;
  text-transform:uppercase;color:var(--accent);margin-bottom:.9rem}
.toc ol{margin:0;padding:0;list-style:none;display:grid;gap:.6rem;counter-reset:t}
.toc li{counter-increment:t}
.toc a{text-decoration:none;font-size:.92rem;color:var(--text-secondary);line-height:1.45;
  display:block;transition:color .3s var(--ease)}
.toc a:hover{color:var(--accent)}
.toc a.on{color:var(--accent);font-weight:500}

.aside-cta{background:var(--text-primary);color:#E6DDCE;border-radius:14px;padding:1.6rem 1.5rem}
.aside-cta b{display:block;font-family:var(--f-display);font-size:1.12rem;color:#FBF6EC;
  font-weight:600;line-height:1.3;margin-bottom:.5rem}
.aside-cta p{font-size:.9rem;color:#B8AC98;line-height:1.6;margin-bottom:1.1rem}
.aside-cta .btn{width:100%;background:var(--accent-muted);color:var(--text-primary);
  border-color:var(--accent-muted);font-size:.9rem;padding:.75rem 1rem}
.aside-cta .btn:hover{background:#FBF6EC;border-color:#FBF6EC}

/* ---------- bài liên quan ---------- */
.rel{background:var(--canvas-deep)}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-top:2.4rem}
.rel-card{background:var(--panel);border:1px solid var(--border-soft);border-radius:14px;
  padding:1.5rem;text-decoration:none;display:block;
  transition:transform .4s var(--ease),border-color .4s var(--ease)}
.rel-card:hover{transform:translateY(-3px);border-color:var(--accent-muted)}
.rel-card i{font-style:normal;font-family:var(--f-mono);font-size:.62rem;letter-spacing:.15em;
  text-transform:uppercase;color:var(--accent);display:block;margin-bottom:.5rem}
.rel-card h3{font-size:1.05rem;line-height:1.35}

/* ---------- kêu gọi cuối ---------- */
.end{position:relative;overflow:hidden}
.end-bg{position:absolute;inset:0;z-index:-1;background-image:url("hero-ending.jpg");
  background-size:cover;background-position:center}
.end-bg::after{content:"";position:absolute;inset:0;background:rgba(246,241,232,.62)}
.end-in{text-align:center;max-width:60ch;margin-inline:auto}
.end .kicker{justify-content:center}
.end .lede{margin-inline:auto;text-align:center;color:var(--text-primary)}
.end .btn-row{justify-content:center}
.end-meta{margin-top:2.4rem;display:flex;flex-wrap:wrap;justify-content:center;gap:.6rem 2rem;
  font-family:var(--f-mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--text-secondary)}

/* ---------- chân trang ---------- */
footer{background:var(--text-primary);color:#E6DDCE;padding:clamp(3rem,6vw,4.5rem) 0 2.2rem}
.foot-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:2.5rem}
.foot-logo{width:190px;margin-bottom:1.2rem}
footer h3{font-family:var(--f-mono);font-size:.68rem;font-weight:500;letter-spacing:.16em;
  text-transform:uppercase;color:var(--accent-muted);margin-bottom:1rem}
footer p,footer a{font-size:.93rem;color:#CBBFAC;text-decoration:none;line-height:1.75}
footer a{transition:color .3s var(--ease)}
footer a:hover{color:#FBF6EC}
.foot-list{display:grid;gap:.45rem}
.foot-legal{margin-top:1.6rem;padding-top:1.4rem;border-top:1px solid rgba(216,200,168,.18);
  font-size:.82rem;line-height:1.8;color:#A99D8B;max-width:96ch}
.foot-legal b{color:#CBBFAC;font-weight:600}
.foot-legal a{color:var(--accent-muted);text-decoration:underline;text-underline-offset:3px}
.foot-base{margin-top:2.2rem;padding-top:1.5rem;border-top:1px solid rgba(216,200,168,.2);
  display:flex;flex-wrap:wrap;gap:.6rem 2rem;justify-content:space-between;font-size:.82rem;color:#9E9382}

.rise{opacity:0;transform:translateY(24px);transition:opacity .85s var(--ease),transform .85s var(--ease)}
.in .rise{opacity:1;transform:none}
.in .rise:nth-child(1){transition-delay:0s}
.in .rise:nth-child(2){transition-delay:.08s}
.in .rise:nth-child(3){transition-delay:.16s}
.in .rise:nth-child(4){transition-delay:.24s}
.in .rise:nth-child(5){transition-delay:.32s}
.in .rise:nth-child(6){transition-delay:.4s}
.done .rise:nth-child(1),.done .rise:nth-child(2),.done .rise:nth-child(3),
.done .rise:nth-child(4),.done .rise:nth-child(5),.done .rise:nth-child(6){transition-delay:0s}
body.paused *,body.paused *::before,body.paused *::after{animation-play-state:paused!important}

/* ---------- hình, bảng và sơ đồ trong bài ---------- */
.prose h3{scroll-margin-top:6rem}
.fig{margin:2.2rem 0}
.fig img,.fig-split img{width:100%;border-radius:14px;border:1px solid var(--border-soft);box-shadow:0 22px 46px -30px rgba(42,33,24,.45)}
.fig figcaption,.fig-split figcaption{margin-top:.7rem;font-size:.85rem;line-height:1.55;color:var(--text-secondary)}
.fig-split{display:grid;grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);gap:1.6rem;align-items:center;margin:2.4rem 0}
.fig-split figure{margin:0}
.fig-split .note{margin:0}
.fig-duo{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;margin:2.2rem 0}
.fig-duo img{width:100%;border-radius:14px;border:1px solid var(--border-soft);box-shadow:0 22px 46px -30px rgba(42,33,24,.45)}
.fig-duo figcaption{grid-column:1/-1;font-size:.85rem;line-height:1.55;color:var(--text-secondary)}

.routes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.9rem;margin:1.6rem 0 1.6rem}
.route{display:grid;grid-template-columns:auto minmax(0,1fr);gap:.25rem .9rem;align-items:start;
  background:var(--panel);border:1px solid var(--border-soft);border-radius:14px;padding:1.1rem 1.2rem}
.route svg{grid-row:span 2;width:34px;height:34px;color:var(--accent);margin-top:.1rem}
.route b{font-family:var(--f-display);font-size:1.04rem;font-weight:600;line-height:1.3}
.route span{font-size:.9rem;line-height:1.55;color:var(--text-secondary)}
.prose .nots-label{margin:0 0 .6rem;font-family:var(--f-mono);font-size:.64rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.prose .nots{display:flex;flex-wrap:wrap;gap:.5rem;margin:0 0 1.8rem}
.prose .nots li{padding:.35rem .85rem;border-radius:999px;background:var(--lilac-soft);font-size:.86rem;color:var(--text-primary)}
.prose .nots li::before{display:none}

.berg{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1.4rem;align-items:center;margin:2.2rem 0;
  background:var(--panel);border:1px solid var(--border-soft);border-radius:var(--r);padding:1.4rem}
.berg svg{display:block;width:100%;height:auto}
.berg dl{margin:0;display:grid;gap:1.1rem}
.berg dt{display:flex;align-items:center;gap:.6rem;font-family:var(--f-display);font-size:1.06rem;font-weight:600;color:var(--text-primary)}
.berg dt::before{content:"";width:12px;height:12px;border-radius:3px;flex:none;background:var(--k,var(--accent));border:1px solid var(--accent-muted)}
.berg dd{margin:.3rem 0 0;font-size:.9rem;line-height:1.55;color:var(--text-secondary)}

.dgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.9rem;margin:1.6rem 0 2.2rem}
.dcard{display:grid;gap:.5rem;align-content:start;text-decoration:none;color:inherit;
  background:var(--panel);border:1px solid var(--border-soft);border-radius:14px;padding:1.1rem 1.2rem;
  transition:transform .4s var(--ease),border-color .4s var(--ease)}
.dcard:hover{transform:translateY(-3px);border-color:var(--accent-muted)}
.dcard:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.dcard b{font-family:var(--f-display);font-size:1.12rem;font-weight:600;line-height:1.25}
.dcard .sign{font-size:.88rem;line-height:1.5;color:var(--text-secondary)}
.tags{display:flex;flex-wrap:wrap;gap:.35rem}
.tag{font-family:var(--f-mono);font-size:.6rem;letter-spacing:.11em;text-transform:uppercase;line-height:1;
  padding:.3rem .55rem;border-radius:999px;border:1px solid var(--border-soft);background:var(--canvas);color:var(--text-secondary)}
.tag.cure{border-color:#A9C2A3;background:#EEF4EC;color:#3E6337}
.tag.ctrl{border-color:#CDBBD6;background:var(--lilac-soft);color:#5B4468}

.tbl{overflow-x:auto;margin:1.4rem 0 2.2rem;background:var(--panel);border:1px solid var(--border-soft);border-radius:14px}
.tbl table{width:100%;min-width:540px;border-collapse:collapse;font-size:.92rem}
.tbl th,.tbl td{padding:.85rem 1rem;text-align:left;vertical-align:top;line-height:1.5;border-bottom:1px solid var(--border-soft)}
.tbl th{font-family:var(--f-mono);font-size:.63rem;font-weight:500;letter-spacing:.13em;text-transform:uppercase;color:var(--accent);background:var(--canvas)}
.tbl td{color:var(--text-secondary)}
.tbl td b{color:var(--text-primary);font-weight:600}
.tbl tbody tr:last-child td{border-bottom:0}

.win{margin:1.8rem 0 2.2rem;background:var(--panel);border:1px solid var(--border-soft);border-radius:var(--r);padding:1.3rem 1.4rem 1.1rem}
.win-head,.win-row{display:grid;grid-template-columns:12.5rem minmax(0,1fr);gap:1rem;align-items:center}
.win-head{padding-bottom:.5rem}
.win-scale{position:relative;height:1rem;font-family:var(--f-mono);font-size:.6rem;letter-spacing:.06em;color:var(--text-secondary)}
.win-scale span{position:absolute;top:0;transform:translateX(-50%);white-space:nowrap}
.win-scale span:first-child{transform:none}
.win-scale span:last-child{transform:translateX(-100%)}
.win-row{padding:.75rem 0;border-top:1px solid var(--border-soft)}
.win-row b{display:block;font-size:.92rem;font-weight:600;line-height:1.3;color:var(--text-primary)}
.win-row small{display:block;margin-top:.15rem;font-size:.8rem;line-height:1.45;color:var(--text-secondary)}
.win-track{position:relative;height:12px;border-radius:999px;background:var(--canvas-deep)}
.win-track::before{content:"";position:absolute;inset:0;border-radius:inherit;
  background:linear-gradient(90deg,transparent calc(25% - 1px),var(--border-soft) 0 25%,transparent 0 calc(50% - 1px),var(--border-soft) 0 50%,transparent 0 calc(75% - 1px),var(--border-soft) 0 75%,transparent 0)}
.win-bar{position:absolute;top:0;bottom:0;left:var(--a);width:calc(var(--b) - var(--a));border-radius:999px;background:var(--accent)}
.win-bar.soft{background:var(--accent-muted)}
.win-dot{position:absolute;top:50%;left:var(--a);width:14px;height:14px;margin:-7px 0 0 -7px;border-radius:50%;background:var(--panel);border:2px solid var(--accent)}
.win-text{font-size:.86rem;color:var(--text-secondary)}
.win-key{display:flex;flex-wrap:wrap;gap:.45rem 1.4rem;margin-top:.8rem;padding-top:.8rem;border-top:1px solid var(--border-soft);font-size:.8rem;color:var(--text-secondary)}
.win-key span{display:inline-flex;align-items:center;gap:.45rem}
.win-key i{display:inline-block;width:22px;height:8px;border-radius:999px;background:var(--accent)}
.win-key i.soft{background:var(--accent-muted)}
.win-key i.dot{width:12px;height:12px;background:var(--panel);border:2px solid var(--accent)}

.checks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.9rem;margin:1.4rem 0 2rem}
.check{background:var(--panel);border:1px solid var(--border-soft);border-radius:14px;padding:1.1rem 1.2rem}
.check b{display:flex;align-items:center;gap:.6rem;margin-bottom:.4rem;font-family:var(--f-display);font-size:1.04rem;font-weight:600;line-height:1.3}
.check b::before{content:"";flex:none;width:20px;height:20px;border-radius:50%;
  background:var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2.6 6.3l2.2 2.2 4.6-4.9' fill='none' stroke='%23FFFBF2' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat}
.check p{margin:0;font-size:.9rem;line-height:1.55}

.src{margin-top:2.8rem;padding-top:1.4rem;border-top:1px solid var(--border-soft)}
.src b{display:block;margin-bottom:.8rem;font-family:var(--f-mono);font-size:.64rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.prose .src ol{gap:.5rem;margin:0}
.prose .src li{font-size:.86rem;line-height:1.55}
.src a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}

@media (max-width:720px){
  .fig-split,.routes,.berg,.dgrid,.checks{grid-template-columns:1fr}
  .fig-split figure{max-width:340px}
  .win-head,.win-row{grid-template-columns:1fr;gap:.5rem}
  .win-head > span:first-child{display:none}
}

/* menu đủ 7 mục cần khoảng 1150px, hẹp hơn thì gom vào nút menu */
@media (max-width:1200px){
  .nav-links{display:none}
  .burger{display:flex;margin-left:auto}
  .sheet{display:block}
}
@media (max-width:1020px){
  .art-wrap{grid-template-columns:minmax(0,1fr)}
  .aside{position:static;grid-template-columns:1fr 1fr;display:grid}
  .klist{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  :root{--shell:calc(100vw - 2.4rem)}
  body{font-size:16px}
  .nav-in{height:64px;gap:.7rem}
  .nav .btn{padding:.6rem .95rem}
  .aside{grid-template-columns:1fr}
  .prose{font-size:1rem}
  .foot-grid{grid-template-columns:1fr}
  .end-meta{flex-direction:column;gap:.5rem}
}
@media (max-width:430px){
  .nav-cta-txt{display:none}
  .nav .btn{padding:.6rem;width:44px}
  .brand b{font-size:1.05rem}
  .brand img{height:32px}
}
@media (pointer:coarse){
  .btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important;transition-delay:0s!important}
  body{opacity:1}
  .rise{opacity:1;transform:none}
  .beam::after{transform:scaleX(1)}
  .kicker::before{transform:scaleX(1)}
}