.pengyao-captcha { width: min(320px, 100%); margin: .9rem auto 1rem; user-select: none; }
.pengyao-captcha-heading { display: flex; min-height: 1.75rem; align-items: center; justify-content: space-between; color: #5f687a; font-size: .86rem; }
.pengyao-captcha-reload { width: 1.8rem; height: 1.65rem; padding: 0; color: #7b8496; border: 0; background: transparent; font-size: 1.35rem; line-height: 1; cursor: pointer; }
.pengyao-captcha-stage { position: relative; width: 100%; overflow: hidden; aspect-ratio: 320/150; border-radius: .7rem; background: #dfe3ec; box-shadow: inset 0 0 0 1px rgba(23, 32, 51, .12); }
.pengyao-captcha-background { display: block; width: 100%; height: 100%; }
.pengyao-captcha-piece { position: absolute; z-index: 2; left: 0; top: 0; filter: drop-shadow(0 3px 5px rgba(0, 0, 0, .36)); cursor: grab; touch-action: none; }
.pengyao-captcha.dragging .pengyao-captcha-piece { cursor: grabbing; }
.pengyao-captcha-track { position: relative; height: 2.85rem; margin-top: .55rem; overflow: hidden; border: 1px solid #cbd1dc; border-radius: .6rem; background: #f4f6fa; }
.pengyao-captcha-progress { position: absolute; inset: 0 auto 0 0; width: 0; background: rgba(89, 101, 216, .13); }
.pengyao-captcha-thumb { position: absolute; z-index: 2; top: 0; left: 0; width: 46px; height: calc(2.85rem - 2px); padding: 0; color: var(--pengyao-indigo); border: 0; border-right: 1px solid #cbd1dc; border-radius: .55rem; background: #fff; box-shadow: 1px 0 4px rgba(0, 0, 0, .07); font-weight: 800; letter-spacing: -3px; cursor: grab; touch-action: none; }
.pengyao-captcha-thumb:focus-visible { outline: 3px solid rgba(89, 101, 216, .3); outline-offset: -3px; }
.pengyao-captcha-hint { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; padding-left: 46px; color: #7b8496; font-size: .78rem; pointer-events: none; }
.pengyao-captcha-status { min-height: 1.1rem; margin: .4rem 0 0; color: #737d90; font-size: .76rem; }
.pengyao-captcha.loading .pengyao-captcha-stage { opacity: .55; }
.pengyao-captcha.success .pengyao-captcha-track { border-color: #59a987; background: #e6f5ee; }
.pengyao-captcha.success .pengyao-captcha-progress { width: 100% !important; }
.pengyao-captcha.success .pengyao-captcha-thumb { left: calc(100% - 46px) !important; color: #fff; border-color: #2f946c; background: #2f946c; font-size: 0; }
.pengyao-captcha.success .pengyao-captcha-thumb::after { content: '✓'; font-size: 1.15rem; letter-spacing: 0; }
.pengyao-captcha.success .pengyao-captcha-status { color: #27815f; }
.pengyao-captcha.error .pengyao-captcha-status { color: #b42318; }

@media (prefers-color-scheme: dark) {
  .pengyao-captcha-heading, .pengyao-captcha-status, .pengyao-captcha-hint { color: #aeb6c8; }
  .pengyao-captcha-track { border-color: #4a5262; background: #252b37; }
  .pengyao-captcha-thumb { border-color: #4a5262; background: #343b49; }
}