:root { color: #263b35; background: #f7f3ea; font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", sans-serif; }
* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; }
button { font: inherit; }
.page { max-width: 560px; min-height: 100svh; margin: auto; padding: max(32px, env(safe-area-inset-top)) 24px calc(36px + env(safe-area-inset-bottom)); background: radial-gradient(circle at 88% 10%, #e5c6a6 0 3px, transparent 4px), #f7f3ea; }
.folio { margin: 0 0 40px; color: #60746c; font-size: 13px; letter-spacing: .06em; }
h1 { margin: 0; font-family: ui-serif, "Songti SC", STSong, serif; font-size: clamp(38px, 11vw, 58px); font-weight: 600; line-height: 1.08; letter-spacing: -.04em; }
.intro { max-width: 34em; margin: 24px 0 34px; color: #50645d; font-size: 16px; line-height: 1.75; }
.thread { border: 1px solid #d8d2c4; border-radius: 20px 20px 20px 4px; padding: 18px; background: #fffdf8; }
.bubble { width: fit-content; max-width: 90%; margin: 0 0 12px auto; padding: 13px 16px; border-radius: 18px 18px 4px 18px; background: #263b35; color: #fffdf8; line-height: 1.5; }
.bubble.from-b { margin-right: auto; margin-left: 0; border-radius: 18px 18px 18px 4px; background: #e8eee8; color: #263b35; }
.message-state { margin: 0; color: #6d766f; font-size: 13px; line-height: 1.55; }
.actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 18px 0 28px; }
.message-compose { display: grid; grid-template-columns: 1fr auto; gap: 10px; margin-top: 14px; }
input { min-width: 0; min-height: 48px; border: 1px solid #9aaba2; border-radius: 14px; padding: 10px 13px; background: #fffdf8; color: #263b35; font: inherit; }
.message-compose button { min-width: 118px; }
button { min-height: 48px; border: 0; border-radius: 14px; padding: 10px; background: #263b35; color: #fffdf8; cursor: pointer; }
button.quiet { border: 1px solid #9aaba2; background: transparent; color: #263b35; }
button:disabled { cursor: not-allowed; opacity: .48; }
button:focus-visible { outline: 3px solid #c87b62; outline-offset: 3px; }
.ledger { border-top: 1px solid #c8c7bb; }
.ledger div { display: flex; justify-content: space-between; gap: 18px; padding: 14px 0; border-bottom: 1px solid #d9d6cd; font-size: 14px; }
.ledger span { color: #64736c; }
.ledger strong { text-align: right; font-weight: 600; }
.note { margin: 24px 0 0; color: #6d766f; font-size: 13px; line-height: 1.65; }
@media (max-width: 420px) { .message-compose { grid-template-columns: 1fr; } .message-compose button { width: 100%; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; } }