/* ouzhou-se.cn — 银幕画幅资料站 */
:root{
  --ink:#0d0c11;
  --ink2:#15141c;
  --panel:#1b1a24;
  --line:#2e2c3b;
  --fg:#ece7dd;
  --dim:#a39cb0;
  --amber:#e8a33d;
  --steel:#9fb0d8;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--ink);color:var(--fg);
  font-family:var(--sans);line-height:1.75;font-size:16px;
  overflow-x:hidden;
}
img,svg{max-width:100%;height:auto}
a{color:var(--amber)}
a:hover{color:#ffc46d}

.wrap{width:100%;max-width:1060px;margin:0 auto;padding:0 18px}

.masthead{border-bottom:1px solid var(--line);background:linear-gradient(180deg,#141320,#0d0c11)}
.mast-inner{display:flex;align-items:center;gap:14px;padding-top:16px;padding-bottom:16px;flex-wrap:wrap}
.mark{width:52px;flex:0 0 auto}
.mast-kicker{margin:0;font-size:.82rem;letter-spacing:.14em;color:var(--steel);text-transform:uppercase}

h1{
  font-size:clamp(1.55rem,6.2vw,2.9rem);
  line-height:1.25;margin:2.1rem 0 1.3rem;font-weight:800;
  color:var(--amber);letter-spacing:.01em;
}
.h1-sub{
  display:block;margin-top:.5rem;
  font-size:clamp(.88rem,3.2vw,1.12rem);
  font-weight:500;color:var(--fg);letter-spacing:.04em;
}

h2{font-size:clamp(1.12rem,4vw,1.45rem);margin:0 0 .75rem;color:#fff;font-weight:700}
h3{font-size:1rem;margin:0 0 .4rem;color:var(--amber);font-weight:700}
p{margin:0 0 .9rem}

.honest{
  border:1px solid #4b3a1c;border-left:5px solid var(--amber);
  background:#1d1810;border-radius:4px;padding:18px 18px 10px;margin-bottom:1.6rem;
}
.honest h2{color:var(--amber);font-size:1.02rem}
.honest-list{margin:0 0 .6rem;padding-left:1.2em}
.honest-list li{margin-bottom:.4rem}

.jump{
  display:flex;flex-wrap:wrap;gap:8px;margin:0 0 1.8rem;
  padding-bottom:1.2rem;border-bottom:1px solid var(--line);
}
.jump a{
  font-size:.86rem;text-decoration:none;color:var(--steel);
  border:1px solid var(--line);border-radius:999px;padding:4px 13px;
}
.jump a:hover{border-color:var(--amber);color:var(--amber)}

.panel{
  background:var(--ink2);border:1px solid var(--line);border-radius:6px;
  padding:20px 18px;margin:0 0 1.5rem;
}
.lead{color:var(--dim)}
.note{font-size:.86rem;color:var(--dim);margin-top:.8rem}

.calc-form{
  display:grid;grid-template-columns:1fr;gap:12px;
  background:var(--panel);border:1px solid var(--line);border-radius:5px;
  padding:14px;margin:1rem 0;
}
.field{display:flex;flex-direction:column;gap:5px;min-width:0}
.field label{font-size:.82rem;color:var(--steel);letter-spacing:.03em}
.field input,.field select{
  width:100%;min-width:0;background:#0f0e15;color:var(--fg);
  border:1px solid #3b3950;border-radius:4px;padding:9px 10px;
  font-size:1rem;font-family:var(--mono);
}
.field select{font-family:var(--sans)}
.field input:focus,.field select:focus{outline:2px solid var(--amber);outline-offset:1px}
.field-act{justify-content:flex-end}
#btn-fit{
  width:100%;background:var(--amber);color:#1a1206;border:0;border-radius:4px;
  padding:11px 18px;font-size:1rem;font-weight:700;cursor:pointer;font-family:var(--sans);
}
#btn-fit:hover{background:#ffba55}

.calc-out{margin-top:1rem}
.calc-out .placeholder{color:var(--dim);font-style:normal;margin:0}
.res-head{margin:0 0 .7rem;font-size:.9rem;color:var(--steel)}
.res-grid{display:grid;grid-template-columns:1fr;gap:10px;margin-bottom:.8rem}
.res-item{
  border:1px solid var(--line);border-left:4px solid var(--steel);
  border-radius:4px;padding:11px 13px;background:#121119;
}
.res-item.win{border-left-color:var(--amber);background:#1c1710}
.res-item h4{margin:0 0 .35rem;font-size:.95rem;color:#fff;font-weight:700}
.res-item .ratio{font-family:var(--mono);color:var(--amber);font-size:.84rem}
.res-item dl{display:grid;grid-template-columns:auto 1fr;gap:2px 10px;margin:.4rem 0 0;font-size:.9rem}
.res-item dt{color:var(--dim)}
.res-item dd{margin:0;font-family:var(--mono)}
.res-verdict{
  margin:0;padding:11px 13px;border-radius:4px;background:#241d10;
  border:1px solid #4b3a1c;font-size:.93rem;
}

.diagram{margin:1.3rem 0 0}
#fitSvgBox svg{display:block;width:100%;height:auto;background:#0a0910;border:1px solid var(--line);border-radius:4px}
figcaption{font-size:.83rem;color:var(--dim);margin-top:.5rem}

.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:4px}
table.spec{border-collapse:collapse;width:100%;min-width:520px;font-size:.9rem}
table.spec caption{text-align:left;padding:10px 12px;color:var(--dim);font-size:.84rem}
table.spec th,table.spec td{padding:9px 12px;border-top:1px solid var(--line);text-align:left}
table.spec thead th{background:#221f2d;color:var(--steel);font-weight:600;border-top:0}
table.spec tbody th{color:#fff;font-weight:600}
table.spec td{font-family:var(--mono);color:var(--fg)}

.cards{display:grid;grid-template-columns:1fr;gap:12px;margin:1rem 0}
.card{border:1px solid var(--line);border-radius:4px;padding:13px;background:#121119}
.card p{margin:0;font-size:.92rem;color:var(--dim)}

.terms{margin:.6rem 0 0}
.terms dt{color:var(--amber);font-weight:700;margin-top:.8rem}
.terms dd{margin:.2rem 0 0;color:var(--dim)}

.src{margin:.4rem 0 .8rem;padding-left:1.2em;color:var(--dim);font-size:.92rem}
.src li{margin-bottom:.45rem}

.foot{border-top:1px solid var(--line);margin-top:2rem;padding:20px 0 36px;color:var(--dim);font-size:.88rem}
.foot p{margin:0 0 .4rem}

/* 404 */
.err{padding:3rem 0 4rem}
.err-code{font-family:var(--mono);font-size:clamp(3rem,16vw,6rem);color:var(--line);margin:0;line-height:1}
.err ul{padding-left:1.2em;color:var(--dim)}

@media (min-width:620px){
  .calc-form{grid-template-columns:1fr 1fr}
  .res-grid{grid-template-columns:1fr 1fr}
  #btn-fit{width:auto;min-width:160px}
  .field-act{align-items:flex-start}
}
@media (min-width:900px){
  .calc-form{grid-template-columns:1fr 1fr 1.3fr auto;align-items:end}
  .res-grid{grid-template-columns:repeat(3,1fr)}
  .cards{grid-template-columns:repeat(3,1fr)}
  .panel{padding:26px 26px}
}