/* ============================================================
   拉菲娱乐馆 /assets/site.css
   夜间门廊 · 门缝光带 · 记录簿秩序
   ============================================================ */

/* ---------- 01 tokens ---------- */
:root{
  --ink:#0B1622;
  --ink-2:#122232;
  --gold:#F2C879;
  --amber:#D99A4E;
  --wine:#7A1F2B;
  --wine-dark:#4E121B;
  --mist:#8A97A6;
  --cream:#F5EFE4;
  --green:#0F2A2A;

  --line:rgba(138,151,166,.24);
  --line-gold:rgba(242,200,121,.22);
  --band:38%;

  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
  --sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:"IBM Plex Mono","SF Mono",SFMono-Regular,Consolas,"Courier New",monospace;

  --r-xl:30px;
  --r-lg:22px;
  --r-md:14px;
  --r-pill:999px;

  --shell:1160px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --t:240ms;
  --shadow-wine:0 12px 28px rgba(78,18,27,.5);
}

/* ---------- 02 reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,p,ul,ol,li,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img,svg{display:block;max-width:100%}
hr{border:0}

/* ---------- 03 base ---------- */
body{
  min-height:100vh;
  background-color:var(--ink);
  background-image:
    radial-gradient(120% 70% at var(--band) -12%,rgba(242,200,121,.10),transparent 62%),
    radial-gradient(80% 55% at 96% 104%,rgba(122,31,43,.22),transparent 70%);
  background-repeat:no-repeat;
  color:var(--cream);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,h4{font-family:var(--serif);font-weight:700;line-height:1.18;letter-spacing:.01em;color:var(--cream)}
h1{font-size:clamp(38px,7vw,72px)}
h2{font-size:clamp(28px,4vw,44px)}
h3{font-size:clamp(20px,2.4vw,26px)}
h4{font-size:18px}
p{max-width:68ch}
strong{color:var(--gold);font-weight:700}

:where(a,button,summary,input,textarea,select,[tabindex]):focus-visible{
  outline:2px solid var(--gold);
  outline-offset:3px;
  border-radius:6px;
}

/* ---------- 04 utility text ---------- */
.eyebrow{
  display:inline-block;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--gold);
}
.mono{font-family:var(--mono);letter-spacing:.06em}
.lede{font-size:clamp(17px,2vw,21px);line-height:1.8;color:rgba(245,239,228,.84);max-width:60ch}
.muted{color:var(--mist)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;
  color:var(--gold);
  background:rgba(242,200,121,.10);
  border:1px solid var(--line-gold);
}
.rule{height:1px;background:var(--line);margin:0}

/* ---------- 05 shells ---------- */
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px}
.shell--narrow{max-width:820px}

.section{position:relative;padding:clamp(56px,9vw,120px) 0}
.section + .section{border-top:1px solid var(--line)}
.section-head{display:flex;flex-direction:column;gap:14px;margin-bottom:clamp(28px,4vw,56px);max-width:760px}
.section-index{
  display:inline-flex;align-items:center;gap:12px;
  font-family:var(--mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--gold);
}
.section-index::after{content:"";width:56px;height:1px;background:linear-gradient(90deg,var(--gold),transparent)}
.section-title{font-size:clamp(28px,4vw,44px)}
.section-note{color:var(--mist);font-size:16.5px;max-width:60ch}

.door-seam{
  position:absolute;top:0;bottom:0;left:var(--band);
  width:2px;pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(242,200,121,.55) 22%,rgba(217,154,78,.30) 70%,transparent);
  box-shadow:0 0 26px 6px rgba(242,200,121,.12);
}

/* ---------- 06 buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 26px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:500;letter-spacing:.02em;
  transition:transform var(--t) var(--ease),background-color var(--t) ease,color var(--t) ease,border-color var(--t) ease,box-shadow var(--t) ease;
}
.btn--wine{
  background:linear-gradient(180deg,var(--wine),var(--wine-dark));
  color:var(--cream);
  border-color:var(--line-gold);
  box-shadow:var(--shadow-wine);
}
.btn--wine:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(78,18,27,.6)}
.btn--ghost{background:transparent;color:var(--cream);border-color:rgba(245,239,228,.28)}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn--gold{background:linear-gradient(180deg,var(--gold),var(--amber));color:#2A1A0C}
.btn--gold:hover{transform:translateY(-2px)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 07 pills ---------- */
.pill-row{display:flex;flex-wrap:wrap;gap:10px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;
  border-radius:var(--r-pill);
  border:1px solid rgba(138,151,166,.35);
  background:rgba(18,34,50,.62);
  color:var(--mist);
  font-size:14px;
  transition:color var(--t) ease,border-color var(--t) ease,background-color var(--t) ease;
}
.pill:hover{color:var(--cream);border-color:rgba(242,200,121,.45)}
.pill[aria-pressed="true"]{
  background:linear-gradient(180deg,rgba(122,31,43,.92),rgba(78,18,27,.92));
  border-color:rgba(242,200,121,.5);
  color:var(--cream);
}

/* ---------- 08 panels ---------- */
.panel{
  position:relative;
  padding:clamp(22px,3vw,36px);
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(160deg,rgba(18,34,50,.96),rgba(11,22,34,.96));
  overflow:hidden;
}
.panel--wine{background:linear-gradient(160deg,rgba(122,31,43,.34),rgba(11,22,34,.94));border-color:var(--line-gold)}
.panel--green{background:linear-gradient(160deg,rgba(15,42,42,.92),rgba(11,22,34,.96))}

/* ---------- 09 breadcrumb ---------- */
.breadcrumb{padding:20px 0 0}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--mist)}
.breadcrumb-item{display:inline-flex;align-items:center}
.breadcrumb-item + .breadcrumb-item::before{content:"/";margin-right:10px;color:rgba(138,151,166,.45)}
.breadcrumb-link{color:var(--mist);transition:color var(--t) ease}
.breadcrumb-link:hover{color:var(--gold)}
.breadcrumb-item[aria-current="page"]{color:var(--cream)}

/* ---------- 10 media frames ---------- */
.frame{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(150deg,var(--ink-2),var(--ink) 55%,var(--green));
}
.frame > img,.frame > svg{width:100%;height:100%;object-fit:cover}
.frame::after{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,rgba(11,22,34,0) 32%,rgba(78,18,27,.5));
}
.frame--wide{aspect-ratio:16/10}
.frame--square{aspect-ratio:1/1}
.frame--tall{aspect-ratio:3/4}
.frame-fill{
  position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(90deg,transparent 36%,rgba(242,200,121,.18) 38%,transparent 40%);
}
.frame-caption{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:3;
  font-family:var(--mono);font-size:11px;letter-spacing:.14em;
  color:rgba(245,239,228,.82);
}

/* ---------- 11 toc / accordion / copy ---------- */
.toc{padding-left:16px;border-left:2px solid var(--line-gold)}
.toc-list{display:flex;flex-direction:column;gap:10px}
.toc-link{font-family:var(--mono);font-size:12.5px;letter-spacing:.1em;color:var(--mist);transition:color var(--t) ease}
.toc-link:hover,.toc-link[aria-current="true"]{color:var(--gold)}

.accordion{border-top:1px solid var(--line)}
.accordion-item{border-bottom:1px solid var(--line)}
.accordion-btn{
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  width:100%;padding:20px 0;text-align:left;
  font-family:var(--serif);font-size:18px;font-weight:700;color:var(--cream);
}
.accordion-btn[aria-expanded="true"]{color:var(--gold)}
.accordion-panel{padding:0 0 22px;color:var(--mist);font-size:16px}
.accordion-panel[hidden]{display:none}

.copy-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.copy-btn{
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line-gold);
  color:var(--gold);font-family:var(--mono);font-size:12px;letter-spacing:.12em;
}
.copy-btn:hover{background:rgba(242,200,121,.1)}

/* ---------- 12 reveal ---------- */
.has-js [data-reveal]{
  opacity:0;
  transform:translateY(12px);
  transition:opacity 520ms var(--ease),transform 520ms var(--ease);
}
.has-js [data-reveal].is-in{opacity:1;transform:none}

/* ---------- 13 skip link ---------- */
.skip-link{
  position:fixed;left:16px;top:-72px;z-index:400;
  padding:10px 20px;border-radius:var(--r-pill);
  background:var(--gold);color:var(--ink);
  font-family:var(--mono);font-size:13px;letter-spacing:.1em;
  transition:top var(--t) var(--ease);
}
.skip-link:focus{top:14px}

/* ---------- 14 header ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(11,22,34,.94);
  border-bottom:1px solid var(--line-gold);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.header-inner{
  position:relative;
  display:grid;
  grid-template-columns:auto minmax(0,1fr) auto;
  grid-template-areas:"brand nav utils";
  align-items:center;
  gap:14px 24px;
  width:100%;max-width:var(--shell);
  margin:0 auto;padding:13px 24px;
}
.header-glow{
  position:absolute;left:var(--band);top:0;bottom:0;width:1px;pointer-events:none;
  background:linear-gradient(180deg,rgba(242,200,121,0),rgba(242,200,121,.55),rgba(242,200,121,0));
}
.scroll-meter{
  position:absolute;left:0;right:0;bottom:-1px;height:2px;
  pointer-events:none;overflow:hidden;
}
.scroll-meter-fill{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--wine),var(--gold));
  box-shadow:0 0 10px rgba(242,200,121,.7);
  transition:width 120ms linear;
}

.brand{grid-area:brand;display:flex;align-items:center;gap:12px}
.brand-mark{
  position:relative;flex:0 0 auto;
  width:30px;height:40px;
  border:1px solid rgba(242,200,121,.55);
  border-radius:9px 9px 4px 4px;
  background:linear-gradient(180deg,rgba(122,31,43,.7),rgba(11,22,34,.3));
  box-shadow:inset 0 0 0 1px rgba(11,22,34,.7);
}
.brand-mark::before{
  content:"";position:absolute;left:50%;top:7px;bottom:7px;width:2px;
  transform:translateX(-50%);border-radius:2px;
  background:linear-gradient(180deg,var(--gold),rgba(242,200,121,0));
  box-shadow:0 0 10px 2px rgba(242,200,121,.5);
}
.brand-text{display:flex;flex-direction:column;gap:1px;min-width:0}
.brand-name{
  font-family:var(--serif);font-weight:700;font-size:19px;line-height:1.25;
  letter-spacing:.06em;color:var(--cream);
  transition:color var(--t) ease;
}
.brand-tagline{font-family:var(--mono);font-size:10.5px;line-height:1.5;letter-spacing:.16em;color:var(--mist)}
.brand:hover .brand-name{color:var(--gold)}

.nav-toggle{
  grid-area:toggle;display:none;align-items:center;gap:10px;
  justify-self:end;
  padding:10px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(242,200,121,.32);
  color:var(--cream);
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;
}
.nav-toggle-bars{position:relative;width:18px;height:12px;flex:0 0 auto}
.nav-toggle-bars::before,.nav-toggle-bars::after{
  content:"";position:absolute;left:0;right:0;height:1.5px;border-radius:2px;
  background:var(--gold);
  transition:transform var(--t) var(--ease);
}
.nav-toggle-bars::before{top:2px}
.nav-toggle-bars::after{bottom:2px}
.site-header[data-open] .nav-toggle-bars::before{transform:translateY(3.5px) rotate(45deg)}
.site-header[data-open] .nav-toggle-bars::after{transform:translateY(-3.5px) rotate(-45deg)}
.nav-toggle-text{white-space:nowrap}

.primary-nav{grid-area:nav;min-width:0}
.nav-list{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:2px}
.nav-item{display:block}
.nav-link{
  position:relative;
  display:inline-flex;align-items:baseline;gap:7px;
  padding:9px 11px;border-radius:var(--r-pill);
  font-size:14.5px;color:rgba(245,239,228,.72);
  transition:color var(--t) ease,background-color var(--t) ease;
}
.nav-link:hover{color:var(--cream);background:rgba(242,200,121,.08)}
.nav-index{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--mist);transition:color var(--t) ease}
.nav-link:hover .nav-index{color:var(--gold)}
.nav-text{white-space:nowrap}
.nav-link[aria-current="page"]{color:var(--cream);background:rgba(242,200,121,.1)}
.nav-link[aria-current="page"] .nav-index{color:var(--gold)}
.nav-link[aria-current="page"]::after{
  content:"";position:absolute;left:11px;right:11px;bottom:2px;height:2px;border-radius:2px;
  background:var(--gold);
  box-shadow:0 0 12px rgba(242,200,121,.8);
}

.header-utils{grid-area:utils;display:flex;align-items:center;justify-content:flex-end;gap:10px}
.utility-link{
  padding:8px 10px;border-radius:var(--r-pill);
  border:1px solid transparent;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.06em;letter-spacing:.05em;
  color:var(--mist);white-space:nowrap;
  transition:color var(--t) ease,border-color var(--t) ease;
}
.utility-link:hover{color:var(--gold);border-color:rgba(242,200,121,.35)}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 18px;border-radius:var(--r-pill);
  background:linear-gradient(180deg,var(--wine),var(--wine-dark));
  border:1px solid rgba(242,200,121,.3);
  color:var(--cream);font-size:14px;white-space:nowrap;
  box-shadow:0 8px 20px rgba(78,18,27,.45);
  transition:transform var(--t) var(--ease),box-shadow var(--t) ease,color var(--t) ease;
}
.header-cta:hover{transform:translateY(-1px);color:var(--gold);box-shadow:0 12px 26px rgba(78,18,27,.6)}

/* ---------- 15 footer ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(60px,10vw,140px);
  border-top:1px solid var(--line-gold);
  background:linear-gradient(180deg,rgba(11,22,34,0),rgba(18,34,50,.82) 42%,rgba(11,22,34,1));
  overflow:hidden;
}
.footer-seam{
  position:absolute;left:var(--band);top:0;bottom:0;width:2px;pointer-events:none;
  background:linear-gradient(180deg,rgba(242,200,121,.5),rgba(242,200,121,0) 72%);
  box-shadow:0 0 30px 8px rgba(242,200,121,.1);
}
.footer-inner{position:relative;width:100%;max-width:var(--shell);margin:0 auto;padding:clamp(48px,7vw,84px) 24px 28px}
.footer-top{
  display:grid;
  grid-template-columns:minmax(250px,1fr) minmax(0,1.55fr);
  gap:clamp(32px,5vw,72px);
  padding-bottom:clamp(30px,5vw,54px);
  border-bottom:1px solid var(--line);
}
.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:14px;max-width:360px}
.footer-eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--amber)}
.footer-mark{
  font-family:var(--serif);font-weight:700;
  font-size:clamp(26px,3.4vw,34px);letter-spacing:.05em;line-height:1.3;
  color:var(--cream);transition:color var(--t) ease;
}
.footer-mark:hover{color:var(--gold)}
.footer-line{font-size:15px;line-height:1.95;color:var(--mist);max-width:34ch}

.footer-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,40px)}
.footer-col{min-width:0}
.footer-heading{
  margin-bottom:16px;
  font-family:var(--mono);font-size:12px;font-weight:400;letter-spacing:.18em;
  color:var(--gold);
}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-link{
  display:inline-block;
  font-size:15px;color:rgba(245,239,228,.76);
  transition:color var(--t) ease,padding-left var(--t) var(--ease);
}
.footer-link:hover{color:var(--gold);padding-left:10px}

.footer-contact{
  display:flex;flex-wrap:wrap;gap:16px 44px;
  padding:clamp(24px,3vw,34px) 0;
  border-bottom:1px solid var(--line);
}
.footer-contact-item{display:flex;flex-direction:column;gap:4px;min-width:170px;flex:1 1 200px}
.footer-contact-key{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:rgba(242,200,121,.78)}
.footer-contact-value{font-size:14.5px;line-height:1.7;color:rgba(245,239,228,.82);word-break:break-word}

.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding-top:22px;
}
.footer-legal{font-family:var(--mono);font-size:12px;letter-spacing:.06em;color:rgba(138,151,166,.88);max-width:none}

/* ---------- 16 responsive ---------- */
@media (max-width:1100px){
  .header-inner{
    grid-template-columns:minmax(0,1fr) auto;
    grid-template-areas:"brand toggle" "nav nav" "utils utils";
    gap:10px 16px;
    padding:12px 20px 14px;
  }
  .nav-toggle{display:inline-flex}
  .primary-nav{display:none;padding-top:12px;border-top:1px solid var(--line)}
  .site-header[data-open] .primary-nav{display:block}
  .nav-list{flex-direction:column;align-items:stretch;justify-content:flex-start;gap:2px}
  .nav-link{width:100%;padding:12px 14px;font-size:16px}
  .nav-link[aria-current="page"]::after{left:14px;right:auto;width:20px;bottom:7px}
  .header-utils{display:none}
  .site-header[data-open] .header-utils{
    display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-start;
    padding-top:12px;border-top:1px solid var(--line);
  }
  .header-cta{width:100%}
  .brand-tagline{display:none}
  .brand-name{font-size:18px}
  .footer-top{grid-template-columns:1fr}
  .footer-brand{max-width:none}
}

@media (max-width:760px){
  body{font-size:16.5px}
  .shell{padding:0 20px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 20px}
  .footer-contact{gap:14px 24px}
  .footer-contact-item{flex:1 1 100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
  .btn-row{width:100%}
}

@media (max-width:460px){
  .brand-mark{width:26px;height:36px}
  .nav-toggle{padding:9px 13px;font-size:11px}
  .section{padding:56px 0}
}

/* ---------- 17 focus & motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .has-js [data-reveal]{opacity:1;transform:none}
  .scroll-meter-fill{transition:none}
}