/* 録画の共通 */
.real-video { position: relative; overflow: hidden; background: #fff; }
.rec { display: block; width: 100%; height: 100%; object-fit: cover; object-position: top; }
.rec-cap { position: absolute; left: 8px; right: 8px; bottom: 16px; min-height: 2.9em; padding: 6px 10px; background: rgba(10, 44, 85, .92); border-radius: 8px; color: #fff; font: 700 13px/1.45 var(--sans); }
.demo-note { padding: 14px 20px; color: #444; font-size: 13px; line-height: 1.7; text-align: center; }

/* 帯：横書きの言葉と、実機に近いスマホ */
.st1 { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); height: 760px; }
.strip { position: relative; overflow: hidden; }
.js .strip.rv { opacity: 1; }
.strip-bg { position: absolute; inset: 0 auto 0 0; width: 100%; background: linear-gradient(var(--main) 62%, var(--paper) 100%); }
.strip:nth-child(even) .strip-bg { background: linear-gradient(var(--sub) 62%, var(--paper) 100%); }
.js .strip .strip-bg { width: .1%; transition: width .7s ease; }
.js .strip.in .strip-bg { width: 100%; }
.strip-word { position: relative; z-index: 1; margin: 44px 6px 0; color: #fff; font: 900 clamp(18px, 1.85vw, 34px)/1.35 var(--serif); letter-spacing: .01em; text-align: center; text-shadow: 0 2px 10px rgba(0, 0, 0, .35); white-space: nowrap; }
.real-phone { position: absolute; left: 50%; bottom: 26px; width: min(86%, 280px); aspect-ratio: 9 / 19; padding: 9px; background: linear-gradient(145deg, #4b4f57, #16181c 28%, #2c2f35 72%, #0d0e11); border-radius: 46px; box-shadow: 0 0 0 1.5px #6b6f77, 0 26px 50px rgba(0, 0, 0, .42); transform: translateX(-50%); }
.real-phone::before { content: ""; position: absolute; right: -3px; top: 23%; width: 3px; height: 62px; background: #3a3d44; border-radius: 0 3px 3px 0; }
.real-phone::after { content: ""; position: absolute; left: -3px; top: 17%; width: 3px; height: 26px; background: #3a3d44; border-radius: 3px 0 0 3px; box-shadow: 0 42px 0 #3a3d44, 0 84px 0 #3a3d44; }
.real-screen { position: relative; display: flex; flex-direction: column; height: 100%; overflow: hidden; background: #fff; border-radius: 38px; }
.real-screen::after { content: ""; position: absolute; left: 50%; bottom: 7px; width: 96px; height: 4px; margin-left: -48px; background: #111; border-radius: 3px; }
.real-status { position: relative; display: flex; flex: none; align-items: center; justify-content: space-between; height: 36px; padding: 8px 22px 0; color: #111; font: 700 12.5px/1 var(--sans); }
.real-status::before { content: ""; position: absolute; left: 50%; top: 8px; width: 78px; height: 23px; margin-left: -39px; background: #08090b; border-radius: 12px; }
.real-status i { width: 20px; height: 10px; border: 1.5px solid #111; border-radius: 3px; background: linear-gradient(90deg, #111 72%, transparent 72%); }
.real-screen .real-video { flex: 1; min-height: 0; }

/* カード：ノートPCで大きく */
.about { padding-bottom: 0; }
.power-head { padding: 64px 20px 28px; text-align: center; }
.power-head h2 { font: 900 clamp(32px, 5.4vw, 62px)/1.3 var(--serif); }
.pc-row { display: grid; grid-template-columns: minmax(0, 340px) minmax(0, 1fr); gap: 44px; align-items: center; padding: 42px max(20px, calc((100% - 1200px) / 2)); background: var(--sub); color: #fff; }
.pc-row:nth-child(even) { grid-template-columns: minmax(0, 1fr) minmax(0, 340px); background: var(--main); }
.pc-row:nth-child(even) .pc-copy { order: 2; }
.power-pre { font: 700 clamp(19px, 2vw, 28px)/1.4 var(--serif); }
.pc-copy h3 { color: var(--accent); font: 900 clamp(44px, 4.6vw, 68px)/1.2 var(--serif); letter-spacing: -.01em; white-space: nowrap; }
.power-line { margin-top: 10px; color: #eef4f0; font-size: clamp(14px, 1.2vw, 17px); font-weight: 700; line-height: 1.7; }
.real-lid { position: relative; padding: 16px 14px; background: #16181c; border: 1px solid #3a3d44; border-radius: 16px 16px 0 0; }
.real-lid > i { position: absolute; left: 50%; top: 6px; width: 5px; height: 5px; margin-left: -2.5px; background: #3a3d44; border-radius: 50%; }
.real-lid .real-video { aspect-ratio: 16 / 9; }
.real-lid .rec-cap { left: 50%; right: auto; bottom: 14px; width: max-content; max-width: 88%; min-height: 0; font-size: 15px; transform: translateX(-50%); }
.real-base { position: relative; width: 108%; height: 18px; margin-left: -4%; background: linear-gradient(#c9ccd2, #8f9299); border-radius: 0 0 16px 16px; box-shadow: 0 18px 34px rgba(0, 0, 0, .34); }
.real-base::before { content: ""; position: absolute; left: 50%; top: 0; width: 120px; height: 6px; margin-left: -60px; background: #6e7178; border-radius: 0 0 8px 8px; }

@media (max-width: 1080px) and (min-width: 761px) {
  .st1 { grid-template-columns: repeat(3, minmax(0, 1fr)); height: auto; }
  .strip { height: 760px; }
  .strip-word { font-size: 24px; }
  .real-phone { width: min(88%, 280px); }
  .pc-row, .pc-row:nth-child(even) { grid-template-columns: minmax(0, 1fr); gap: 20px; text-align: center; }
  .pc-row:nth-child(even) .pc-copy { order: 0; }
}

@media (max-width: 760px) {
  .st1 { display: block; height: auto; }
  .strip { padding: 34px 0 30px; }
  .strip-bg, .strip:nth-child(even) .strip-bg { background: var(--main); }
  .strip:nth-child(even) .strip-bg { background: var(--sub); }
  .strip-word { margin: 0 12px 16px; font-size: 26px; }
  .real-phone { position: relative; left: auto; bottom: auto; width: min(280px, 78%); margin-inline: auto; transform: none; }
  .pc-row, .pc-row:nth-child(even) { grid-template-columns: minmax(0, 1fr); gap: 18px; padding: 30px 14px 36px; text-align: center; }
  .pc-row:nth-child(even) .pc-copy { order: 0; }
  .real-lid { padding: 10px 8px; border-radius: 10px 10px 0 0; }
  .real-lid .rec-cap { position: static; width: auto; max-width: none; margin-top: 6px; background: var(--sub); border-radius: 0; font-size: 13px; transform: none; }
  .real-lid .real-video { aspect-ratio: auto; }
  .real-lid .rec { aspect-ratio: 16 / 9; height: auto; }
  .real-base { height: 12px; }
}

.pc-row { overflow-x: clip; }