@charset "UTF-8";
/* ============================================================
   ハイエンドオーディオ＆アクセサリーショウ2026
   PHILE WEB 特設ページ / 主催：音元出版
   ============================================================ */

:root{
  --red:#E60021;
  --gold:#FDD657;
  --ink:#14151A;
  --ink-2:#1B1D23;
  --body:#33363E;
  --muted:#767B87;
  --line:#DFE2E7;
  --tint:#F4F5F7;
  --paper:#FFFFFF;
  --wrap:1080px;
  --hd:64px;
  --font:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;
  --num:"Barlow Condensed","Noto Sans JP",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--body);
  background:var(--paper);
  -webkit-text-size-adjust:100%;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--red);text-decoration:none}
a:hover{text-decoration:underline}
/* サイト共通の /css/base.css を後から打ち消す（dt の padding-bottom 等が効いてしまうため） */
h1,h2,h3,h4,h5,h6,p,ul,ol,li,dl,dt,dd,figure,figcaption{margin:0;padding:0}
ul{list-style:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}

.wrap{width:min(100% - 40px,var(--wrap));margin-inline:auto}
.sp-only{display:none}
.muted{color:var(--muted);font-size:.86em}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(20,21,26,.93);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid rgba(255,255,255,.1);
}
.site-header__inner{
  width:min(100% - 32px,1200px);margin-inline:auto;
  height:var(--hd);display:flex;align-items:center;gap:28px;
}
.site-header__logo img{width:160px}
.site-header__logo:hover{opacity:.75}
.site-nav{display:flex;gap:22px;margin-left:auto;flex-wrap:wrap}
.site-nav a{
  color:rgba(255,255,255,.82);font-size:13.5px;font-weight:500;
  letter-spacing:.04em;text-decoration:none;padding:4px 0;
  border-bottom:2px solid transparent;transition:.2s;
}
.site-nav a:hover{color:#fff;border-bottom-color:var(--gold);text-decoration:none}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink);isolation:isolate}
.hero__bg{
  position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(180deg,rgba(20,21,26,.86) 0%,rgba(20,21,26,.94) 55%,var(--ink) 100%),
    url("../images/hall.jpg") center 35%/cover no-repeat;
}
.hero__inner{
  width:min(100% - 40px,var(--wrap));margin-inline:auto;
  padding:44px 0 62px;text-align:center;
}
.hero__eyebrow{
  color:rgba(255,255,255,.7);font-size:13px;letter-spacing:.08em;
  display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;
  margin-bottom:22px;
}
.hero__eyebrow span{
  background:var(--red);color:#fff;font-weight:700;letter-spacing:.1em;
  padding:5px 13px;font-size:12.5px;line-height:1;
}
.hero__title{
  background:#fff;padding:20px 24px;
  box-shadow:0 18px 44px rgba(0,0,0,.45);
  max-width:920px;margin:0 auto;
}
.hero__title img{width:100%}
.hero__lead{
  color:#fff;font-size:clamp(17px,2.4vw,23px);font-weight:700;
  letter-spacing:.04em;margin-top:30px;
}
.hero__lead strong{color:var(--gold);font-size:1.28em;font-weight:900;padding:0 .1em}

/* 開催要項：箱組みにせず罫線で組む */
.hero__facts{
  max-width:600px;margin:30px auto 0;text-align:left;
  border-top:1px solid rgba(255,255,255,.22);
}
.hero__facts > div{
  display:grid;grid-template-columns:76px 1fr;align-items:baseline;
  gap:0 18px;padding:13px 2px;
  border-bottom:1px solid rgba(255,255,255,.22);
}
.hero__facts dt{
  color:var(--gold);font-size:12px;font-weight:700;letter-spacing:.22em;
}
.hero__facts dd{color:#fff;font-weight:700;font-size:16.5px;line-height:1.6}
.hero__facts dd small{font-size:.82em;font-weight:500}
.hero__note{color:rgba(255,255,255,.6);font-size:13px;margin-top:24px}

/* ---------- section common ---------- */
.section{padding:80px 0}
.section--tint{background:var(--tint)}
.section--dark{background:var(--ink-2);color:rgba(255,255,255,.86)}
.section--center{text-align:center}

.sec-title{
  font-size:clamp(23px,3.2vw,30px);font-weight:900;color:var(--ink);
  letter-spacing:.06em;line-height:1.4;margin-bottom:34px;
  padding-bottom:14px;border-bottom:2px solid var(--ink);
  position:relative;
}
.sec-title::after{
  content:"";position:absolute;left:0;bottom:-2px;width:80px;height:2px;background:var(--red);
}
.section--center .sec-title::after{left:50%;transform:translateX(-50%)}
.sec-lead{font-size:15.5px;margin-bottom:28px}
.sec-lead strong{color:var(--red);font-weight:900;font-size:1.12em}
.sec-eyebrow{
  color:var(--gold);font-size:13px;font-weight:700;letter-spacing:.2em;
  text-align:center;margin-bottom:14px;
}

/* ---------- 開催概要 ---------- */
.outline{display:grid;gap:22px}
.outline > div{
  display:grid;grid-template-columns:150px 1fr;gap:0 24px;align-items:start;
}
.outline dt{
  font-weight:700;color:var(--ink);font-size:14.5px;letter-spacing:.08em;
}
.outline dd{font-size:15.5px}
.outline dd strong{color:var(--ink);font-weight:700}

/* ---------- 会場拡大 ---------- */
.scale__head{
  text-align:center;color:#fff;font-weight:900;
  font-size:clamp(28px,5.2vw,48px);line-height:1.3;letter-spacing:.02em;
}
.scale__head em{
  font-style:normal;color:var(--gold);position:relative;padding:0 .06em;
}
.scale__head em::after{
  content:"";position:absolute;left:0;right:0;bottom:-.08em;height:.07em;background:var(--red);
}
.scale__head span{
  display:block;font-size:.56em;color:rgba(255,255,255,.9);margin-top:.35em;font-weight:700;
}
.scale__lead{
  max-width:760px;margin:30px auto 0;text-align:center;font-size:15.5px;
  color:rgba(255,255,255,.78);
}

.scale__add{
  margin-top:46px;text-align:center;color:#fff;
  font-size:15px;font-weight:700;letter-spacing:.06em;line-height:1.5;
}
.scale__add b{
  display:block;font-family:var(--num);font-weight:700;color:var(--gold);
  font-size:clamp(66px,11vw,104px);line-height:.95;margin:6px 0 2px;
}
.scale__add b small{font-size:.34em;font-weight:600;margin-left:.06em}
.scale__add span{font-size:14px;font-weight:500;color:rgba(255,255,255,.7)}
.scale__foot{
  margin-top:26px;text-align:center;font-size:14.5px;color:rgba(255,255,255,.72);
}

.venue-shots{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:36px}
.venue-shots img{width:100%;aspect-ratio:4/3;object-fit:cover}
.venue-shots figcaption{
  padding-top:14px;margin-top:12px;border-top:1px solid rgba(255,255,255,.2);
  color:#fff;font-size:17px;font-weight:700;letter-spacing:.03em;
}
.venue-shots figcaption span{
  display:block;margin-top:2px;font-size:13px;font-weight:500;color:rgba(255,255,255,.6);
  letter-spacing:.06em;
}
.tag{
  display:inline-block;margin-right:10px;vertical-align:2px;
  background:var(--red);color:#fff;font-size:11.5px;font-weight:700;
  letter-spacing:.08em;padding:3px 9px;line-height:1.5;
}

/* ---------- 見どころ ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.card h3{
  font-size:18px;font-weight:900;color:var(--ink);line-height:1.55;
  letter-spacing:.02em;margin-top:18px;padding-bottom:12px;
  border-bottom:1px solid var(--line);
}
.card p{margin-top:12px;font-size:14.5px;line-height:1.85}

/* ---------- 続報 ---------- */
.coming{border-top:1px solid var(--line)}
.coming li{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 4px;border-bottom:1px solid var(--line);
}
.coming .ttl{font-weight:700;color:var(--ink);font-size:15.5px}
.coming .chip{
  color:var(--muted);font-size:12px;font-weight:700;letter-spacing:.14em;
  white-space:nowrap;
}

/* ---------- アクセス ---------- */
.access{display:grid;grid-template-columns:1fr 420px;gap:36px;align-items:start}
.access__name{font-size:20px;font-weight:900;color:var(--ink);line-height:1.5}
.access__addr{margin-top:8px;font-size:15px}
.access__routes{margin-top:18px;display:grid;gap:8px}
.access__routes li{
  padding-left:20px;position:relative;font-size:15px;font-weight:500;color:var(--ink);
}
.access__routes li::before{
  content:"";position:absolute;left:0;top:.72em;width:9px;height:2px;background:var(--red);
}
.access__caution{margin-top:12px;font-size:13.5px;color:var(--muted)}
.access__photo img{width:100%;aspect-ratio:4/3;object-fit:cover}

.btn{
  display:inline-flex;align-items:center;gap:12px;
  background:var(--ink);color:#fff;font-weight:700;font-size:14.5px;letter-spacing:.04em;
  padding:14px 26px;text-decoration:none;transition:background .2s,color .2s;
}
.btn::after{content:"→";color:var(--gold)}
.btn:hover{background:var(--red);text-decoration:none}
.btn:hover::after{color:#fff}
.btn--ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink)}
.btn--ghost::after{color:var(--red)}
.btn--ghost:hover{background:var(--ink);color:#fff}
.access .btn{margin-top:22px}

/* ---------- これまでの開催 ---------- */
.movie{max-width:720px;margin-inline:auto}
.movie__frame{position:relative;aspect-ratio:16/9;background:#000}
.movie__frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.movie__cap{margin-top:12px;font-size:13.5px;color:var(--muted)}

.past{
  display:grid;grid-template-columns:repeat(2,1fr);gap:18px;
  max-width:720px;margin:32px auto 0;
}
.past img{width:100%;aspect-ratio:3/2;object-fit:cover}

.archive-links{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:36px;
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.6);padding:48px 0 40px;text-align:center}
.site-footer__organizer{
  font-size:14px;font-weight:500;color:rgba(255,255,255,.55);letter-spacing:.06em;
  display:flex;align-items:baseline;justify-content:center;gap:14px;flex-wrap:wrap;
}
.site-footer__organizer span{color:#fff;font-size:19px;font-weight:900}
.site-footer__links{margin-top:24px;display:flex;justify-content:center;gap:26px}
.site-footer__links a{color:rgba(255,255,255,.8);font-size:14px;text-decoration:none}
.site-footer__links a:hover{color:var(--gold);text-decoration:underline}
.site-footer__copy{margin-top:22px;font-size:12px;color:rgba(255,255,255,.4)}

.to-top{
  position:fixed;right:20px;bottom:20px;z-index:90;
  width:46px;height:46px;
  background:rgba(20,21,26,.85);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;text-decoration:none;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.2);
  opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s,background .2s;
}
.to-top.is-visible{opacity:1;visibility:visible}
.to-top:hover{background:var(--red);text-decoration:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* ---------- tablet ---------- */
@media (max-width:900px){
  .cards{grid-template-columns:1fr;max-width:560px;margin-inline:auto;gap:36px}
  .card img{aspect-ratio:16/8}
  .access{grid-template-columns:1fr;gap:24px}
  .access__photo{max-width:520px}
  .venue-shots{gap:20px}
}

/* ---------- smartphone ---------- */
@media (max-width:640px){
  :root{--hd:56px}
  body{font-size:15px;line-height:1.85}
  .sp-only{display:inline}
  .site-header__inner{gap:14px}
  .site-header__logo img{width:126px}
  .site-nav{
    gap:0;margin-left:auto;overflow-x:auto;flex-wrap:nowrap;
    -webkit-overflow-scrolling:touch;scrollbar-width:none;
    -webkit-mask-image:linear-gradient(90deg,#000 0,#000 calc(100% - 22px),transparent 100%);
            mask-image:linear-gradient(90deg,#000 0,#000 calc(100% - 22px),transparent 100%);
  }
  .site-nav::-webkit-scrollbar{display:none}
  .site-nav a{font-size:12px;padding:4px 9px;white-space:nowrap}

  .hero__inner{padding:26px 0 44px}
  .hero__eyebrow{font-size:11px;gap:8px;margin-bottom:16px}
  .hero__eyebrow span{font-size:11px;padding:4px 10px}
  .hero__title{padding:13px 13px}
  .hero__lead{font-size:17px;margin-top:22px}
  .hero__facts{margin-top:24px}
  .hero__facts > div{grid-template-columns:62px 1fr;gap:0 12px;padding:11px 0}
  .hero__facts dt{font-size:11px;letter-spacing:.16em}
  .hero__facts dd{font-size:15px}
  .hero__note{font-size:12px;margin-top:20px;text-align:left}

  .section{padding:56px 0}
  .sec-title{margin-bottom:26px}

  .outline{gap:18px}
  .outline > div{grid-template-columns:1fr;gap:4px}
  .outline dd{font-size:15px}

  .scale__add{margin-top:36px}
  .scale__foot{margin-top:22px;font-size:13.5px;text-align:left}
  .venue-shots{grid-template-columns:1fr;margin-top:28px;gap:30px}
  .venue-shots figcaption{font-size:16px}

  .coming li{padding:14px 2px;gap:12px}
  .coming .ttl{font-size:14.5px}
  .coming .chip{font-size:11px}

  .past{grid-template-columns:1fr;gap:12px;margin-top:26px}
  .past img{aspect-ratio:16/9}
  .archive-links{flex-direction:column;align-items:stretch}
  .archive-links .btn{justify-content:center}

  .to-top{right:14px;bottom:14px;width:42px;height:42px}
}