/* =====================================================
   top.css｜トップページ専用(v4: フルワイドFV)
   ===================================================== */

/* ===== FV(画面いっぱい) ===== */
.fv {
  position: relative; padding: 0;
  min-height: min(calc(100svh - var(--header-h)), 920px);
  display: flex; flex-direction: column;
  overflow: hidden;
  background: var(--color-secondary);
}
.fv-grid {
  position: static; z-index: 2;
  width: min(1600px, calc(100% - var(--gutter) * 2)); margin-inline: auto;
  flex: 1; display: flex; align-items: center;
}
/* 写真を全面に敷く */
.fv-visual { position: absolute; inset: 0; z-index: 0; }
.fv-visual .ph { position: absolute; inset: 0; justify-content: flex-end; padding-right: 12vw; }
.fv-visual .ph svg.art { width: min(30vw, 380px); opacity: .55; }
.fv-visual .ph .ph-img { object-position: 70% center; }
/* 文字側を読みやすくする淡いグラデーション */
.fv-visual::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(100deg,
    color-mix(in srgb, var(--color-background) 92%, transparent) 0%,
    color-mix(in srgb, var(--color-background) 78%, transparent) 40%,
    color-mix(in srgb, var(--color-background) 25%, transparent) 68%,
    transparent 100%);
}
/* 細い金線の額縁 */
.fv-visual::before {
  content: ""; position: absolute; z-index: 2; inset: clamp(14px, 2vw, 28px); pointer-events: none;
  border: 1px solid color-mix(in srgb, var(--color-accent) 45%, transparent);
}
.fv-copy {
  position: relative; z-index: 3;
  max-width: 760px;
  padding: clamp(72px, 10vh, 120px) 0 clamp(96px, 12vh, 150px);
}
.fv-copy .eyebrow { margin-bottom: 28px; }
.fv-catch {
  font-family: var(--font-mincho); font-weight: 500;
  font-size: clamp(32px, 3.9vw, 52px);
  line-height: 1.6; letter-spacing: .12em; margin-bottom: 22px;
}
.fv-sub { font-size: clamp(14px, 1.1vw, 15.5px); color: var(--color-text-light); letter-spacing: .08em; margin-bottom: 36px; max-width: 480px; }
.fv-ctas { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; max-width: 520px; }
.fv-ctas .btn { flex: 1 1 calc(50% - 5px); padding-inline: 12px; min-height: 56px; }
.fv-trust { display: flex; flex-wrap: wrap; gap: 8px; }
.fv-trust li {
  font-size: 11.5px; letter-spacing: .08em; color: var(--color-text-light);
  border: 1px solid var(--color-border); padding: 5px 14px;
  background: color-mix(in srgb, var(--color-background-white) 80%, transparent);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.fv-vertical {
  position: absolute; z-index: 3; top: clamp(40px, 6vh, 72px); right: clamp(40px, 4.5vw, 72px);
  writing-mode: vertical-rl; font-family: var(--font-mincho);
  font-size: 13px; letter-spacing: .5em; color: var(--color-text-light);
  line-height: 1.6; white-space: nowrap; height: max-content;
}
.fv-scroll {
  position: absolute; z-index: 3; left: 50%; transform: translateX(-50%); bottom: 24px;
  display: flex; padding: 0;
}
.fv-scroll span {
  font-family: var(--font-en); font-size: 10.5px; letter-spacing: .42em; text-transform: uppercase;
  color: var(--color-text-light); display: inline-flex; flex-direction: column; align-items: center; gap: 8px;
}
.fv-scroll i { width: 1px; height: 44px; background: var(--color-accent); display: block; animation: scrollline 2.4s var(--ease) infinite; transform-origin: top; }
@keyframes scrollline { 0%{transform:scaleY(0)} 45%{transform:scaleY(1)} 100%{transform:scaleY(1); opacity:0} }

/* ===== 導線4カード(FVに少し重ねる) ===== */
.fv + section { padding-top: 0 !important; }
.entry-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--color-border); border: 1px solid var(--color-border);
  position: relative; z-index: 4; margin-top: -64px;
  box-shadow: 0 24px 60px rgba(40,39,37,.08);
}
.entry-card {
  background: var(--color-background-white); padding: 34px 26px;
  display: flex; flex-direction: column; gap: 8px;
  transition: background .4s var(--ease);
}
.entry-card:hover { background: var(--color-background); }
.entry-card svg { width: 26px; height: 26px; color: var(--color-accent); }
.entry-card .en { font-family: var(--font-en); font-size: 11px; letter-spacing: .32em; color: var(--color-text-light); text-transform: uppercase; margin-top: 8px; }
.entry-card strong { font-family: var(--font-mincho); font-size: 17px; letter-spacing: .1em; font-weight: 500; }
.entry-card p { font-size: 12.5px; color: var(--color-text-light); }
.entry-card .textlink { margin-top: auto; padding-top: 10px; }

/* ===== 画面幅いっぱいに使うセクション ===== */
.brand-grid { width: min(1600px, 100%); margin-inline: auto; }

/* ===== レスポンシブ(トップ) ===== */
@media (max-width: 1080px) {
  .fv-visual .ph svg.art { opacity: .3; }
  .entry-grid { grid-template-columns: repeat(2, 1fr); margin-top: -40px; }
}
@media (max-width: 820px) {
  .fv { min-height: 0; }
  .fv-visual .ph { justify-content: center; padding: 0 0 30% 0; }
  .fv-visual .ph svg.art { width: 42vw; opacity: .35; }
  .fv-visual::after { background: linear-gradient(to top, var(--color-background) 0%, color-mix(in srgb, var(--color-background) 88%, transparent) 55%, color-mix(in srgb, var(--color-background) 30%, transparent) 100%); }
  .fv-copy { padding: 88px 0 72px; max-width: none; }
  .fv-copy .eyebrow { margin-bottom: 18px; }
  .fv-catch { font-size: clamp(24px, 6.6vw, 30px); line-height: 1.7; letter-spacing: .08em; }
  .fv-sub { margin-bottom: 26px; }
  .fv-ctas { max-width: none; margin-bottom: 24px; }
  .fv-ctas .btn { flex-basis: calc(50% - 5px); font-size: 12.5px; padding-inline: 8px; min-height: 50px; }
  .fv-trust li { font-size: 10.5px; padding: 4px 10px; }
  .fv-vertical { display: none; }
  .fv-visual::before { display: none; }
  .fv-scroll { display: none; }
  .entry-grid { grid-template-columns: 1fr 1fr; margin-top: -28px; }
  .entry-card { padding: 22px 16px; }
  .entry-card strong { font-size: 14.5px; }
  .entry-card p { font-size: 11.5px; }
  .entry-card .textlink { font-size: 12px; }
}
@media (max-width: 480px) {
  .fv-ctas .btn { font-size: 12px; }
}