:root {
  --paper: #fffaf7;
  --paper-strong: #ffffff;
  --blush: #f8e5e1;
  --rose: #d9657f;
  --rose-deep: #a84866;
  --ink: #624c57;
  --muted: #78616c;
  --line: #ead6d2;
  --sage: #6f9782;
  --shadow: 0 18px 50px rgba(111, 71, 77, .12);
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--blush); }
body {
  margin: 0;
  color: var(--ink);
  background-color: var(--blush);
  background-image: radial-gradient(circle, rgba(255,255,255,.82) 5.2px, transparent 5.7px);
  background-size: 58px 58px;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-weight: 500;
  line-height: 1.5;
}
button, input, select, textarea { color: var(--ink); font: inherit; font-weight: 500; }
button { cursor: pointer; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(217, 101, 127, .35);
  outline-offset: 2px;
}
.page-shell { width: 100%; max-width: 1240px; margin: 0 auto; padding: 22px 28px 42px; }
.app-shell { background: rgba(255, 250, 247, .94); border: 1px solid rgba(255,255,255,.9); border-radius: 28px; box-shadow: var(--shadow); padding: 30px; }
.topbar, .top-actions, .space-chip, .hero-strip, .quick-card, .panel-heading, .calendar-toolbar, .toolbar-row, .form-row, .message-composer, .page-footer, .modal-actions, .tab-row { display: flex; align-items: center; }
.topbar { justify-content: space-between; gap: 18px; }
.brand-lockup h1 { margin: 2px 0 0; font-family: Quicksand, sans-serif; font-size: clamp(1.8rem, 3vw, 2.65rem); letter-spacing: .03em; color: var(--rose-deep); }
.brand-lockup h1 span { color: var(--rose); }
.eyebrow { margin: 0; color: var(--rose); font-size: .68rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.top-actions { flex-wrap: wrap; justify-content: flex-end; gap: 8px; }
.pair-display { display: flex; align-items: center; gap: 3px; padding: 3px 8px; border-radius: 12px; background: rgba(255,255,255,.62); }
.pair-person { display: grid; justify-items: center; min-width: 50px; gap: 2px; }
.pair-avatar { display: grid; place-items: center; width: 38px; height: 38px; overflow: hidden; border: 1px solid #ecdde2; border-radius: 50%; color: var(--rose-deep); background: #f8ecef; font-size: .7rem; font-weight: 700; line-height: 1; }
.pair-avatar img { width: 100%; height: 100%; object-fit: cover; }
.pair-avatar > span { max-width: 30px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pair-person small { max-width: 64px; overflow: hidden; color: var(--muted); font-size: .65rem; text-overflow: ellipsis; white-space: nowrap; }
.pair-link { color: #c9a2aa; font-family: Quicksand, sans-serif; font-size: .72rem; }
.top-music { display: inline-flex; align-items: center; gap: 2px; padding: 2px; border: 1px solid var(--line); border-radius: 999px; background: #fffdfc; }
.music-control, .music-upload { display: inline-grid; place-items: center; width: 44px; height: 44px; padding: 0; border: 0; border-radius: 50%; color: #735d63; background: transparent; font-size: .72rem; line-height: 1; }
.music-control:hover, .music-upload:hover { color: var(--rose-deep); background: #fff1ee; }
.music-main { color: #fff; background: var(--sage); font-size: .66rem; }
.music-main:hover { color: #fff; background: #5b826d; }
.music-upload { position: relative; cursor: pointer; font-size: .9rem; }
.music-upload input { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.space-chip { gap: 8px; min-height: 38px; padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--rose-deep); background: #fffdfc; font-size: .82rem; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--sage); box-shadow: 0 0 0 4px rgba(111,151,130,.12); }
.chip-divider { width: 1px; height: 16px; background: var(--line); }
.icon-button, .play-button { display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--line); color: var(--rose-deep); background: #fff; }
.icon-button { width: 38px; height: 38px; border-radius: 50%; }
.icon-button:hover, .play-button:hover { border-color: var(--rose); background: #fff5f3; }
.hero-strip { justify-content: flex-end; margin: 24px 0 22px; }
.day-card { display: grid; grid-template-columns: auto auto auto; align-items: center; gap: 4px 8px; min-width: 260px; padding: 13px 16px; border: 1px solid #edc2c1; border-radius: 16px; background: #fff9f6; color: var(--rose-deep); }
.day-card-label { grid-column: 1 / -1; color: var(--muted); font-size: .72rem; }
.day-card strong { font-family: Quicksand, sans-serif; font-size: 2.1rem; line-height: 1; }
.date-control { grid-column: 1 / 3; display: flex; align-items: center; gap: 6px; color: var(--muted); font-size: .72rem; }
.date-control input { min-width: 125px; border: 0; color: var(--rose-deep); background: transparent; }
.small-button, .primary-button, .secondary-button, .text-button { border: 0; border-radius: 999px; }
.small-button { padding: 5px 10px; background: var(--rose); color: #fff; font-size: .76rem; }
.small-button:hover, .primary-button:hover { background: var(--rose-deep); }
.notice { margin: 0 0 18px; padding: 10px 13px; border-radius: 10px; color: #6d3e4c; background: #fff4db; border: 1px solid #f1d7a3; font-size: .84rem; }
.quick-nav { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 20px; }
.quick-card { width: 100%; min-height: 116px; gap: 14px; padding: 16px; text-align: left; border: 1px solid var(--line); border-radius: 15px; background: var(--paper-strong); color: var(--ink); transition: border-color .2s, transform .2s, box-shadow .2s; }
.quick-card:hover, .quick-card.active { border-color: #e8a1aa; box-shadow: 0 10px 24px rgba(217,101,127,.12); transform: translateY(-1px); }
.quick-icon { display: grid; place-items: center; width: 68px; height: 68px; flex: 0 0 68px; border: 1px solid #f1e8c8; border-radius: 15px; color: var(--rose-deep); background: #fffbed; font-size: 2.45rem; line-height: 1; }
.quick-card b, .quick-card small { display: block; }
.quick-card b { font-size: .9rem; }
.quick-card small { margin-top: 3px; color: var(--muted); font-size: .72rem; }
.card-arrow { margin-left: auto; color: #caa0a8; }
.unread-dot { display: inline-block; width: 8px; height: 8px; flex: 0 0 8px; border-radius: 50%; background: #e24e65; box-shadow: 0 0 0 3px rgba(226,78,101,.12); }
.quick-card > .unread-dot { margin-left: auto; }
.quick-card > .unread-dot + .card-arrow { margin-left: 0; }
.content-panel { min-height: 360px; padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: #fffdfc; }
.panel-heading { justify-content: space-between; gap: 16px; margin-bottom: 20px; }
.panel-heading h2, .calendar-toolbar h3 { margin: 2px 0 0; color: var(--ink); font-size: 1.35rem; }
.panel-caption { color: var(--muted); font-size: .82rem; }
.split-layout { display: grid; grid-template-columns: minmax(260px, .8fr) minmax(380px, 1.2fr); gap: 24px; }
.form-row { align-items: flex-end; flex-wrap: wrap; gap: 9px; }
.form-row label, .auth-form label, .message-composer label, .calendar-wrap label { display: grid; gap: 5px; color: var(--muted); font-size: .75rem; }
.form-row label { flex: 1 1 135px; }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 9px; padding: 9px 11px; color: var(--ink); background: #fff; }
textarea { resize: vertical; min-height: 76px; }
input::placeholder, textarea::placeholder { color: #b59da3; }
.primary-button { min-height: 40px; padding: 9px 17px; background: var(--rose); color: #fff; font-size: .82rem; font-weight: 600; }
.primary-button.wide, .secondary-button.wide { width: 100%; }
.secondary-button { min-height: 38px; padding: 8px 14px; color: var(--rose-deep); background: #fcedea; border: 1px solid #efc4c5; font-size: .8rem; font-weight: 600; }
.secondary-button:hover { background: #fbe0de; }
.stack-list { display: grid; gap: 8px; margin-top: 16px; }
.list-row { display: flex; align-items: center; gap: 10px; min-height: 52px; padding: 8px 11px; border: 1px solid #f0e3df; border-radius: 11px; background: #fff; }
.row-open { display: block; min-width: 0; flex: 1; padding: 0; border: 0; color: inherit; background: transparent; text-align: left; }
.list-row-main { min-width: 0; flex: 1; }
.list-row-main strong, .list-row-main small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.list-row-main strong { font-size: .86rem; }
.list-row-main small { color: var(--muted); font-size: .7rem; }
.wish-title-line { display: flex; min-width: 0; align-items: baseline; gap: 6px; }
.wish-title-line strong { min-width: 0; flex: 1; }
.wish-number { flex: 0 0 auto; color: var(--rose-deep); font-family: Quicksand, sans-serif; font-size: .78rem; font-weight: 700; }
.row-info { flex: 0 0 auto; color: var(--rose-deep); font-size: .7rem; white-space: nowrap; }
.row-actions { display: flex; align-items: center; gap: 6px; }
.delete-button, .toggle-button { border: 1px solid var(--line); border-radius: 999px; padding: 5px 9px; color: var(--rose-deep); background: #fff; font-size: .7rem; }
.delete-button:hover { color: #a84444; border-color: #e6a2a2; background: #fff5f5; }
.toggle-button[aria-pressed="true"] { border-color: #a8c7b4; color: #397159; background: #eff8f1; }
.calendar-wrap { min-width: 0; padding: 15px; border-radius: 14px; background: #fff7f4; border: 1px solid #f2deda; }
.calendar-toolbar { justify-content: space-between; margin-bottom: 9px; }
.toolbar-buttons { display: flex; gap: 6px; }
.calendar-container { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; max-height: 470px; overflow: auto; padding-right: 3px; }
.calendar-month { min-width: 0; }
.calendar-month h4 { margin: 0 0 5px; color: var(--rose-deep); font-size: .76rem; }
.weekday-row, .calendar-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 3px; }
.weekday-row { margin-bottom: 3px; color: #a1868e; font-size: .58rem; text-align: center; }
.cal-cell { position: relative; min-width: 0; }
.cal-day { width: 100%; min-height: 31px; padding: 3px 2px; border: 1px solid transparent; border-radius: 7px; color: var(--ink); background: #fff; font-size: .68rem; }
.cal-day:hover { border-color: #e9aab0; }
.cal-day.heart { color: var(--rose-deep); background: #fce8e8; }
.cal-day.empty { visibility: hidden; pointer-events: none; }
.note-mark { position: absolute; right: 1px; top: 0; width: 5px; height: 5px; border-radius: 50%; background: var(--rose); pointer-events: none; }
.cal-note { position: absolute; right: 0; bottom: 0; width: 14px; height: 14px; padding: 0; border: 0; border-radius: 50%; color: var(--rose-deep); background: #f9d9d9; font-size: .52rem; line-height: 1; }
.toolbar-row { align-items: flex-end; flex-wrap: wrap; gap: 10px; margin-bottom: 15px; }
.search-field { min-width: min(100%, 270px); flex: 1; display: grid; gap: 5px; color: var(--muted); font-size: .75rem; }
.select-field { min-width: 130px; display: grid; gap: 5px; color: var(--muted); font-size: .75rem; }
.upload-note { margin-left: auto; color: var(--muted); font-size: .72rem; }
.grow { flex: 1; }
.add-line { margin-top: 15px; }
.file-field { min-width: 210px; display: grid; gap: 5px; color: var(--muted); font-size: .75rem; }
.file-field input { padding: 8px; }
.photo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 11px; }
.photo-card { position: relative; overflow: hidden; border: 1px solid #efdeda; border-radius: 12px; background: #fff; }
.photo-open { display: block; width: 100%; padding: 0; border: 0; color: var(--ink); background: transparent; text-align: left; }
.photo-open img, .photo-placeholder { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; background: #f7e8e4; }
.photo-placeholder { display: grid; place-items: center; color: #bd919c; font-size: 1.5rem; }
.photo-meta { padding: 8px 10px 10px; }
.photo-meta strong, .photo-meta small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.photo-meta strong { font-size: .8rem; }
.photo-meta small { margin-top: 2px; color: var(--muted); font-size: .68rem; }
.photo-card .delete-button { position: absolute; top: 7px; right: 7px; background: rgba(255,255,255,.92); }
.message-board { display: grid; gap: 10px; max-height: 460px; overflow: auto; padding-right: 3px; }
.message-item { padding: 13px 15px; border: 1px solid #f0dedb; border-left: 4px solid #e5a0aa; border-radius: 11px; background: #fff; }
.msg-meta { display: flex; justify-content: space-between; gap: 8px; color: var(--muted); font-size: .7rem; }
.msg-content { margin: 7px 0 9px; color: var(--ink); font-size: .9rem; white-space: pre-wrap; overflow-wrap: anywhere; }
.locked-message { color: #9a717b; }
.reply-list { display: grid; gap: 5px; margin: 8px 0; padding-left: 12px; border-left: 2px solid #f4dcd9; }
.reply-item { color: var(--muted); font-size: .76rem; }
.reply-form { display: flex; gap: 6px; }
.reply-form input { padding: 6px 9px; font-size: .76rem; }
.reply-form button { border: 1px solid var(--line); border-radius: 999px; padding: 6px 11px; color: var(--rose-deep); background: #fff7f4; font-size: .72rem; }
.message-composer { align-items: flex-end; flex-wrap: wrap; gap: 10px; margin-top: 17px; padding-top: 15px; border-top: 1px solid #f1e2df; }
.page-footer { justify-content: space-between; gap: 10px; margin-top: 17px; color: var(--muted); font-size: .72rem; }
.text-button { padding: 4px 0; color: var(--rose-deep); background: transparent; text-decoration: underline; }
.mobile-nav { display: none; }
.empty-state { padding: 34px 15px; border: 1px dashed #e8d3d0; border-radius: 11px; color: var(--muted); text-align: center; font-size: .82rem; }
.modal-backdrop { position: fixed; inset: 0; z-index: 20; display: grid; place-items: center; padding: 20px; background: rgba(56, 39, 44, .42); }
.modal-card { position: relative; width: min(100%, 500px); max-height: min(90vh, 720px); overflow: auto; padding: 28px; border-radius: 18px; background: var(--paper); box-shadow: 0 24px 70px rgba(56,39,44,.22); }
.small-modal { width: min(100%, 390px); }
.auth-card { width: min(100%, 620px); }
.modal-card h2 { margin: 5px 0 6px; color: var(--ink); font-size: 1.35rem; }
.modal-lead { margin: 0 0 16px; color: var(--muted); font-size: .83rem; }
.modal-hint { margin: 12px 0 0; color: var(--muted); font-size: .7rem; text-align: center; }
.modal-close { position: absolute; top: 13px; right: 14px; width: 32px; height: 32px; border: 0; border-radius: 50%; color: var(--rose-deep); background: #f8e7e4; font-size: 1.35rem; line-height: 1; }
.modal-close:hover { background: #f4d6d4; }
.tab-row { gap: 5px; padding: 4px; margin: 18px 0 15px; border-radius: 10px; background: #f7e9e5; }
.tab-button { flex: 1; padding: 8px; border: 0; border-radius: 7px; color: var(--muted); background: transparent; font-size: .8rem; }
.tab-button.active { color: var(--rose-deep); background: #fff; box-shadow: 0 2px 7px rgba(111,71,77,.08); }
.auth-form { display: grid; gap: 11px; }
.auth-form label { color: var(--muted); }
.avatar-pair-editor { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.avatar-person, .join-avatar { min-width: 0; margin: 0; padding: 12px; border: 1px solid var(--line); border-radius: 12px; background: #fffdfc; }
.avatar-person legend, .join-avatar legend { padding: 0 5px; color: var(--rose-deep); font-size: .76rem; font-weight: 700; }
.avatar-preview { display: grid; place-items: center; width: 78px; height: 78px; margin: 0 auto 9px; overflow: hidden; border: 2px solid #ead8de; border-radius: 50%; color: var(--muted); background: #f9eef1; line-height: 1.2; text-align: center; }
.avatar-preview img { width: 100%; height: 100%; object-fit: cover; }
.avatar-preview span { padding: 8px; font-size: .66rem; }
.avatar-preview-name { display: block; min-height: 21px; margin: -4px 0 8px; overflow: hidden; color: var(--ink); font-size: .76rem; text-align: center; text-overflow: ellipsis; white-space: nowrap; }
.avatar-file-label { margin-top: 8px; }
.avatar-file-label input { padding: 7px; font-size: .72rem; }
.avatar-file-hint { margin: -3px 0 0; color: var(--muted); font-size: .68rem; line-height: 1.5; text-align: center; }
.clear-avatar { min-height: 36px; margin-top: 7px; padding: 6px 10px; border: 1px solid var(--line); border-radius: 9px; color: var(--rose-deep); background: #fff; font-size: .72rem; }
.clear-avatar:hover { background: #fff4f5; }
.join-avatar { padding-bottom: 14px; }
.form-error { margin: 12px 0 0; color: #a84444; font-size: .78rem; }
.invite-code { margin: 18px 0 12px; padding: 16px; border: 1px dashed #dd9da5; border-radius: 12px; color: var(--rose-deep); background: #fff3f0; font-family: Quicksand, sans-serif; font-size: 2rem; font-weight: 700; letter-spacing: .18em; text-align: center; }
.check-line { display: flex !important; grid-template-columns: auto 1fr; align-items: center; gap: 8px !important; margin-top: 13px; color: var(--ink) !important; font-size: .8rem !important; }
.check-line input { width: auto; }
.modal-actions { justify-content: flex-end; gap: 8px; margin-top: 19px; }
.timeline-card { width: min(100%, 620px); }
.timeline-content, .milestone-content { display: grid; gap: 9px; margin-top: 18px; }
.timeline-item, .milestone-item { padding: 10px 12px; border-left: 3px solid #e6a5ad; border-radius: 0 9px 9px 0; background: #fff4f1; }
.timeline-item strong, .milestone-item strong { display: block; font-size: .82rem; }
.timeline-item small, .milestone-item small { display: block; margin-top: 3px; color: var(--muted); font-size: .7rem; }
.image-backdrop { background: rgba(22, 16, 19, .84); }
.image-viewer { position: relative; display: grid; place-items: center; width: min(100%, 920px); height: min(88vh, 760px); }
.image-viewer img { max-width: 100%; max-height: 100%; border-radius: 10px; object-fit: contain; }
.modal-close.light { color: #fff; background: rgba(255,255,255,.16); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
[hidden] { display: none !important; }
@media (max-width: 980px) {
  .page-shell { padding: 14px; }
  .app-shell { padding: 22px; }
  .quick-nav { grid-template-columns: repeat(2, 1fr); }
  .split-layout { grid-template-columns: 1fr; }
  .calendar-container { max-height: none; }
}
@media (max-width: 620px) {
  .page-shell { padding: 0; }
  .app-shell { min-height: 100vh; padding: 18px 14px calc(88px + env(safe-area-inset-bottom)); border-radius: 0; }
  input, select, textarea { font-size: 16px; }
  .topbar { display: grid; grid-template-columns: 1fr auto; align-items: start; gap: 10px 6px; }
  .pair-display { padding: 2px 4px; }
  .pair-person { min-width: 42px; }
  .pair-avatar { width: 34px; height: 34px; }
  .pair-person small { max-width: 48px; }
  .top-actions { grid-column: 1 / -1; gap: 6px; }
  .top-music { order: 2; margin-left: auto; }
  .space-chip { min-width: 0; max-width: none; flex: 1; overflow: hidden; white-space: nowrap; }
  .space-chip #spaceName { overflow: hidden; text-overflow: ellipsis; }
  .hero-strip { display: block; margin-top: 20px; }
  .day-card { min-width: 0; margin-top: 18px; }
  .quick-nav { display: none; }
  .content-panel { min-height: 0; padding: 18px 14px; border-radius: 14px; }
  .panel-heading { align-items: flex-start; }
  .panel-caption { max-width: 120px; text-align: right; }
  .calendar-container { grid-template-columns: 1fr; gap: 18px; max-height: 420px; }
  .calendar-month:nth-child(n+4) { display: none; }
  .upload-note { width: 100%; margin-left: 0; }
  .avatar-pair-editor { grid-template-columns: 1fr 1fr; }
  .avatar-person { padding: 9px 7px; }
  .clear-avatar { min-height: 44px; }
  .page-footer { padding-bottom: 4px; }
  .mobile-nav { position: fixed; z-index: 10; right: 0; bottom: 0; left: 0; display: grid; grid-template-columns: repeat(4, 1fr); padding: 8px 8px calc(8px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); background: rgba(255,250,247,.96); box-shadow: 0 -8px 25px rgba(111,71,77,.08); }
  .mobile-nav button { position: relative; display: grid; gap: 2px; place-items: center; padding: 5px 2px; border: 0; color: var(--muted); background: transparent; font-size: .66rem; }
  .mobile-nav button > span:first-child { font-size: 1.3rem; line-height: 1; }
  .mobile-nav .unread-dot { position: absolute; top: 3px; right: 30%; width: 7px; height: 7px; }
  .mobile-nav button.active { color: var(--rose-deep); font-weight: 700; }
  .modal-backdrop { padding: 12px; }
  .modal-card { padding: 23px 18px; }
}
@media (max-width: 380px) {
  .avatar-pair-editor { grid-template-columns: 1fr; }
  .music-control, .music-upload { width: 40px; height: 40px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}