/* ===== Sub-pages ===== */
.ph{position:relative;overflow:hidden;background:var(--void);color:#fff;padding:0;isolation:isolate}
.ph .bg{position:absolute;inset:0;z-index:-2;background-size:cover;background-position:center;transform:scale(1.06);animation:kb 22s ease-in-out infinite alternate}
@keyframes kb{to{transform:scale(1.14) translate(-1.5%,-1%)}}
.ph::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(6,9,20,.94) 0%,rgba(6,9,20,.78) 45%,rgba(6,9,20,.25) 100%),linear-gradient(0deg,rgba(6,9,20,.9),transparent 40%)}
.ph .wrap{min-height:72vh;display:grid;align-content:center;gap:26px;padding-top:90px;padding-bottom:90px}
.ph h1{font-size:clamp(3rem,6.4vw,6rem);line-height:.95;letter-spacing:-.03em;font-weight:400;max-width:13ch}
.ph .lede{color:rgba(255,255,255,.78);font-size:1.2rem;max-width:56ch}
.ph .credit{position:absolute;right:18px;bottom:14px;font-size:.72rem;color:rgba(255,255,255,.45)}
.crumbs{font-size:.86rem;color:rgba(255,255,255,.6)}.crumbs a{color:#F0D9A6;text-decoration:none}
.toc{position:sticky;top:74px;z-index:40;background:rgba(246,243,238,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.toc{max-width:100vw;overflow:hidden}
.toc .wrap{min-width:0;display:flex;gap:6px;overflow-x:auto;padding-top:12px;padding-bottom:12px;scrollbar-width:none}
.toc a{flex:none;padding:8px 14px;border-radius:999px;font-size:.9rem;font-weight:500;text-decoration:none;color:var(--ink);border:1px solid var(--line);background:#fff}
.toc a:hover,.toc a.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.callout{border-radius:20px;padding:26px 28px;border:1px solid var(--line);background:#fff;display:grid;gap:8px}
.callout.warn{background:#FBF1EC;border-color:#EBC8BB}
.callout.gold{background:linear-gradient(135deg,#FFF8EA,#F6EAD2);border-color:#E7D3A9}
.callout b{font-weight:600}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:860px){.grid2{grid-template-columns:1fr}}
/* steps list */
.flow{counter-reset:s;display:grid;gap:14px}
.flow li{list-style:none;counter-increment:s;display:grid;grid-template-columns:56px 1fr;gap:18px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px 22px;transition:transform .3s,box-shadow .3s}
.flow li:hover{transform:translateX(6px);box-shadow:0 20px 40px -30px rgba(10,14,28,.5)}
.flow li::before{content:counter(s,decimal-leading-zero);font:400 2rem/1 var(--serif);color:var(--gold-deep)}
.flow b{display:block;font-weight:600;margin-bottom:4px}
.flow p{color:var(--slate);font-size:.97rem}
ul.flow{padding:0;margin:0}
/* calculator */
.calc{display:grid;grid-template-columns:1.05fr .95fr;gap:0;border-radius:28px;overflow:hidden;box-shadow:0 40px 80px -50px rgba(10,14,28,.8)}
.calc .in{background:#fff;padding:36px;display:grid;gap:22px;align-content:start}
.calc .out{background:radial-gradient(500px 300px at 80% 0%,rgba(44,125,160,.35),transparent 60%),var(--void);color:#fff;padding:36px;display:grid;gap:22px;align-content:start}
.fld{display:grid;gap:8px}
.fld label{font-weight:600;font-size:.95rem}
.fld .row{display:flex;gap:10px;align-items:center}
.fld input[type=number],.fld select{font:500 1.1rem var(--sans);padding:12px 14px;border:1px solid var(--line);border-radius:12px;width:100%;background:#FBFAF7;color:var(--ink)}
.fld input[type=range]{width:100%;accent-color:#B98C4C}
.fld small{color:var(--slate);font-size:.84rem}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;flex:none}
.seg button{border:0;background:#fff;padding:10px 14px;font:600 .88rem var(--sans);cursor:pointer;color:var(--slate)}
.seg button.on{background:var(--ink);color:#fff}
.big-n{font:400 clamp(4rem,8vw,6.4rem)/.9 var(--serif);letter-spacing:-.03em}
.big-n small{font-size:.32em;letter-spacing:0;color:rgba(255,255,255,.65);margin-left:.2em}
.kv{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.kv div{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:14px 16px}
.kv b{display:block;font:400 1.5rem/1.1 var(--serif);color:#F0D9A6}
.kv span{font-size:.82rem;color:rgba(255,255,255,.6)}
.syr{position:relative;height:84px}
.syr svg{width:100%;height:100%;overflow:visible}
.msg{font-size:.9rem;padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.07);color:rgba(255,255,255,.85)}
.msg.bad{background:rgba(243,149,138,.18);color:#FFD2CC}
@media(max-width:900px){.calc{grid-template-columns:1fr}.calc .in,.calc .out{padding:26px}}
/* titration */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.tabs button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 18px;font:600 .92rem var(--sans);cursor:pointer;color:var(--ink)}
.tabs button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.ladder{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:10px;align-items:end;height:280px;padding:0 4px;border-bottom:1px solid var(--line)}
.ladder .bar{position:relative;border-radius:14px 14px 4px 4px;background:linear-gradient(180deg,#D7B47A,#A9844A);transform-origin:bottom;animation:grow .9s cubic-bezier(.2,.7,.2,1) both;display:grid;align-content:start;justify-items:center;padding-top:10px;color:#0A0E1C;font:600 .95rem var(--sans);min-height:42px}
.ladder .bar.maint{background:linear-gradient(180deg,#6FD0AE,#2E8B6E);color:#fff}
@keyframes grow{from{transform:scaleY(0)}}
.ladder-lab{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;gap:10px;padding:10px 4px 0;font-size:.82rem;color:var(--slate);text-align:center}
.tnote{margin-top:18px;color:var(--slate);font-size:.95rem;max-width:80ch}
/* photo band */
.pband{position:relative;min-height:520px;display:grid;align-items:end;color:#fff;overflow:hidden;padding:0;isolation:isolate}
.pband img{position:absolute;inset:0;width:100%;height:120%;object-fit:cover;z-index:-2;will-change:transform}
.pband::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(0deg,rgba(6,9,20,.92),rgba(6,9,20,.15) 60%)}
.pband .wrap{padding-bottom:64px;display:grid;gap:16px}
.pband h2{max-width:18ch;color:#fff}
.pband small{font-size:.75rem;color:rgba(255,255,255,.55)}
/* table */
.tbl{width:100%;border-collapse:collapse;background:#fff;border-radius:18px;overflow:hidden;border:1px solid var(--line)}
.tbl th,.tbl td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);font-size:.95rem;vertical-align:top}
.tbl th{background:#FBFAF7;font-weight:600}
.tbl tr:last-child td{border-bottom:0}
.tblw{overflow-x:auto}
/* questions */
.qbar{position:sticky;top:74px;z-index:40;background:rgba(246,243,238,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);padding:16px 0}
.qbar .wrap{display:grid;gap:12px}
.qsearch{position:relative}
.qsearch input{width:100%;font:500 1.15rem var(--sans);padding:18px 20px 18px 54px;border-radius:999px;border:1px solid var(--line);background:#fff;box-shadow:0 14px 30px -24px rgba(10,14,28,.6)}
.qsearch input:focus{outline:2px solid var(--gold);outline-offset:2px}
.qsearch svg{position:absolute;left:20px;top:50%;transform:translateY(-50%);width:20px;height:20px;color:var(--slate)}
.chips{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none}
.chips button{flex:none;border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 14px;font:600 .86rem var(--sans);cursor:pointer;color:var(--ink)}
.chips button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.chips button span{opacity:.55;margin-left:6px;font-weight:500}
.qmeta{display:flex;justify-content:space-between;gap:12px;font-size:.86rem;color:var(--slate);flex-wrap:wrap}
.faqlist{display:grid;gap:12px}
.qi{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:box-shadow .3s,border-color .3s}
.qi[open]{border-color:#D9C49B;box-shadow:0 24px 50px -36px rgba(10,14,28,.6)}
.qi summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:52px 1fr 30px;gap:14px;align-items:center;padding:18px 22px}
.qi summary::-webkit-details-marker{display:none}
.qi .no{font:400 1.3rem/1 var(--serif);color:var(--gold-deep)}
.qi .qt{font-weight:600;font-size:1.04rem}
.qi .tag{display:inline-block;font-size:.72rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--slate);margin-top:4px}
.qi .pm{width:30px;height:30px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;transition:transform .3s,background .3s}
.qi[open] .pm{transform:rotate(45deg);background:var(--ink);color:#fff;border-color:var(--ink)}
.qi .ans{padding:0 22px 22px 88px;color:#2F3850;display:grid;gap:12px}
.qi .ans p{line-height:1.7}
.qi .acts{display:flex;gap:10px;flex-wrap:wrap;font-size:.84rem}
.qi .acts a,.qi .acts button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 12px;font:600 .82rem var(--sans);color:var(--ink);text-decoration:none;cursor:pointer}
mark{background:#F6E3B8;color:inherit;border-radius:3px;padding:0 2px}
.empty{padding:40px;text-align:center;color:var(--slate);background:#fff;border-radius:18px;border:1px dashed var(--line)}
@media(max-width:620px){.qi summary{grid-template-columns:38px 1fr 28px;padding:16px}.qi .ans{padding:0 16px 18px 16px}}