:root {
  color-scheme: dark;
  --bg: #05070b;
  --panel: rgba(12, 17, 26, .82);
  --line: rgba(192, 211, 227, .18);
  --text: #f4f6f7;
  --muted: #9ba8b4;
  --gold: #e7c985;
  --ice: #b9d5e7;
  --safe-bottom: max(18px, env(safe-area-inset-bottom));
  --font-sans: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", system-ui, sans-serif;
  --font-serif: "Source Han Serif SC", "Noto Serif CJK SC", "Songti SC", "STSong", SimSun, serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { min-height: 100%; background: var(--bg); }
body { margin: 0; min-height: 100%; color: var(--text); font-family: var(--font-sans); font-size: 14px; line-height: 1.5; letter-spacing: 0; overflow-x: hidden; font-variant-numeric: tabular-nums; text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
button { color: inherit; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
#stars { position: fixed; inset: 0; width: 100%; height: 100%; z-index: -2; background: radial-gradient(circle at 50% 35%, #101c2a 0, #070b12 42%, #030508 100%); }
body::before { content: ""; position: fixed; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(2,4,8,.25), rgba(2,4,8,.62)); pointer-events: none; }
.app-shell { width: min(100%, 620px); min-height: 100svh; margin: 0 auto; position: relative; padding: 0 20px calc(132px + var(--safe-bottom)); }
.topbar { height: 76px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 10; background: linear-gradient(var(--bg) 0%, rgba(5,7,11,.76) 68%, transparent); }
.brand { display: flex; align-items: center; gap: 10px; font-size: 19px; font-weight: 700; }
.brand-mark { width: 24px; aspect-ratio: 1; display: block; border-radius: 50%; background: var(--gold); box-shadow: inset 8px 0 #17212d, 0 0 20px rgba(231,201,133,.2); }
.icon-button, .step-button, .dialog-close { border: 0; background: transparent; cursor: pointer; }
.icon-button { width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 50%; display: grid; place-items: center; }
.icon-button svg, .step-button svg, .calendar-toolbar svg, .calendar-export svg, .nav-icon, .favorite-button svg { fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.icon-button svg { width: 21px; }
.top-actions { display: flex; gap: 8px; }
.view { display: none; animation: enter .35s ease both; }
.view.active { display: block; }
@keyframes enter { from { opacity: 0; transform: translateY(8px); } }
.date-block { text-align: center; padding-top: clamp(14px, 5vh, 58px); min-height: 152px; }
.eyebrow { margin: 0 0 8px; color: var(--gold); font-size: 12px; text-transform: uppercase; letter-spacing: 0; }
.date-block h1 { margin: 0; font-family: var(--font-serif); font-size: clamp(28px, 7vw, 36px); font-weight: 600; }
.subtle { margin: 9px 0 0; color: var(--muted); font-size: 13px; }
.moon-stage { min-height: min(56vh, 520px); display: grid; grid-template-columns: 42px minmax(0, 1fr) 42px; align-items: center; gap: 4px; }
.moon-canvas { display: block; width: 100%; max-width: 440px; aspect-ratio: 1; justify-self: center; filter: drop-shadow(0 22px 32px rgba(0,0,0,.48)); }
.step-button { width: 42px; height: 58px; color: rgba(255,255,255,.82); transition: transform .2s, color .2s; }
.step-button svg { width: 30px; height: 30px; }
.step-button:active { transform: scale(.88); color: var(--gold); }
.phase-summary { text-align: center; min-height: 82px; }
.phase-summary h2 { margin: 0; font-family: var(--font-serif); font-size: 30px; font-weight: 600; }
.phase-summary p { margin: 9px 0 0; color: var(--muted); font-size: 13px; }
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--line); margin: 24px 0 12px; padding: 18px 0; }
.metrics div { text-align: center; border-right: 1px solid var(--line); }
.metrics div:last-child { border: 0; }
.metrics span, .metrics strong { display: block; }
.metrics span { color: var(--muted); font-size: 11px; margin-bottom: 5px; }
.metrics strong { font-size: 15px; font-weight: 500; }
.forecast { margin-top: 22px; }
.forecast-heading { min-height: 62px; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 12px 14px; border: 1px solid rgba(231,201,133,.24); background: rgba(12,17,26,.56); }
.forecast-heading span, .forecast-heading strong { display: block; }
.forecast-heading span { color: var(--muted); font-size: 11px; }
.forecast-heading strong { margin-top: 3px; color: var(--gold); font: 600 18px var(--font-serif); }
.forecast-heading p { margin: 0; color: var(--muted); font-size: 12px; text-align: right; }
.forecast h2 { margin: 22px 0 10px; font-size: 12px; font-weight: 500; color: var(--muted); }
.forecast-strip { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); border: 1px solid var(--line); background: var(--line); gap: 1px; }
.forecast-day { min-width: 0; padding: 7px 2px 8px; border: 0; background: rgba(7,11,18,.96); cursor: pointer; }
.forecast-day:first-child { background: rgba(231,201,133,.08); }
.forecast-day canvas { width: 100%; aspect-ratio: 1; display: block; }
.forecast-day span, .forecast-day strong { display: block; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.forecast-day span { color: var(--muted); font-size: 10px; }
.forecast-day strong { margin-top: 3px; font-size: 11px; font-weight: 600; }
.bottom-nav { position: fixed; z-index: 20; left: 50%; bottom: var(--safe-bottom); transform: translateX(-50%); width: min(calc(100% - 28px), 580px); height: 72px; display: grid; grid-template-columns: repeat(5, 1fr); padding: 7px; background: rgba(8, 13, 22, .86); border: 1px solid rgba(190,213,229,.25); backdrop-filter: blur(20px); box-shadow: 0 12px 35px rgba(0,0,0,.48); border-radius: 8px; }
.nav-item { border: 0; background: transparent; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; color: #87939f; font-size: 11px; cursor: pointer; border-right: 1px solid rgba(255,255,255,.07); }
.nav-item:last-child { border: 0; }
.nav-item.active { color: var(--text); background: rgba(255,255,255,.065); }
.nav-item.active .nav-icon { color: var(--gold); }
.nav-icon { width: 21px; height: 21px; color: var(--ice); }
.form-view, .poster-view, .gallery-view { padding-top: clamp(30px, 8vh, 80px); }
.favorite-button { margin-top: 14px; min-height: 38px; padding: 0 14px; border: 1px solid var(--line); border-radius: 6px; color: var(--muted); background: rgba(7,11,18,.55); cursor: pointer; }
.favorite-button[aria-pressed="true"] { color: var(--gold); border-color: rgba(231,201,133,.48); }
.favorite-button { display: inline-flex; align-items: center; justify-content: center; gap: 7px; }
.favorite-button svg { width: 17px; height: 17px; }
.favorite-button[aria-pressed="true"] svg { fill: currentColor; }
.gallery-legend { display: flex; justify-content: space-between; gap: 12px; margin: -18px 0 20px; color: var(--muted); font-size: 11px; }
.phase-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--line); background: var(--line); }
.phase-tile { min-width: 0; border: 0; padding: 12px 6px 10px; color: var(--text); background: rgba(7,11,18,.96); cursor: pointer; text-align: center; }
.phase-tile:focus-visible { outline: 2px solid var(--gold); outline-offset: -2px; }
.phase-tile canvas { display: block; width: 100%; aspect-ratio: 1; }
.phase-tile strong, .phase-tile span { display: block; }
.phase-tile strong { margin-top: 4px; font-size: 11px; font-weight: 500; }
.phase-tile span { margin-top: 2px; color: var(--muted); font-size: 11px; }
.section-heading { margin-bottom: 38px; }
.section-heading h1 { margin: 0; font: 600 clamp(32px, 8vw, 42px)/1.2 var(--font-serif); }
.section-heading > p:last-child { color: var(--muted); line-height: 1.7; font-size: 14px; }
.field { display: block; margin-bottom: 16px; }
.field span { display: block; color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.field input { width: 100%; height: 54px; border: 1px solid var(--line); border-radius: 6px; padding: 0 15px; color: var(--text); background: rgba(11,17,27,.76); outline: none; }
.field input:focus { border-color: var(--gold); }
.month-calendar { margin-top: 34px; padding-top: 24px; border-top: 1px solid var(--line); }
.calendar-toolbar { height: 42px; display: grid; grid-template-columns: 42px 1fr 42px; align-items: center; }
.calendar-toolbar h2 { margin: 0; text-align: center; font: 600 20px var(--font-serif); }
.calendar-toolbar button { height: 42px; display: grid; place-items: center; border: 0; color: var(--text); background: transparent; cursor: pointer; }
.calendar-toolbar svg { width: 22px; height: 22px; }
.calendar-toolbar button:disabled { opacity: .2; cursor: not-allowed; }
.calendar-today { display: block; margin: 2px auto 12px; border: 0; color: var(--ice); background: transparent; cursor: pointer; font-size: 10px; }
.calendar-weekdays, .calendar-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); }
.calendar-weekdays { padding: 9px 0; color: var(--muted); font-size: 11px; text-align: center; border-block: 1px solid var(--line); }
.calendar-grid { gap: 1px; background: var(--line); border: 1px solid var(--line); }
.calendar-blank { min-height: 68px; background: rgba(5,8,13,.35); }
.calendar-day { position: relative; min-width: 0; min-height: 68px; padding: 4px 2px 6px; border: 0; color: var(--text); background: rgba(7,11,18,.9); cursor: pointer; text-align: center; transition: background .2s, box-shadow .2s; }
.calendar-day.today::after { content: ""; position: absolute; right: 5px; top: 5px; width: 4px; height: 4px; border-radius: 50%; background: var(--ice); }
.calendar-day.selected { background: rgba(231,201,133,.16); box-shadow: inset 0 0 0 1px rgba(231,201,133,.72); }
.calendar-day canvas { display: block; width: min(100%, 42px); aspect-ratio: 1; margin: 0 auto; }
.calendar-day strong { display: block; margin-top: 1px; font-size: 11px; font-weight: 600; }
.major-phases { margin-top: 18px; }
.major-phases-heading { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 9px; }
.major-phases-heading h3 { margin: 0; font-size: 12px; font-weight: 500; }
.major-phases-heading span { color: var(--muted); font-size: 11px; }
.major-phase-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); position: relative; border-block: 1px solid var(--line); }
.major-phase-list::before { content: ""; position: absolute; left: 12.5%; right: 12.5%; top: 21px; height: 1px; background: rgba(231,201,133,.3); }
.major-phase-item { position: relative; min-width: 0; min-height: 82px; padding: 33px 3px 9px; border: 0; color: var(--text); background: transparent; cursor: pointer; text-align: center; }
.major-phase-item::before { content: ""; position: absolute; z-index: 1; left: 50%; top: 17px; width: 9px; height: 9px; transform: translateX(-50%); border: 2px solid var(--gold); border-radius: 50%; background: var(--bg); }
.major-phase-item strong, .major-phase-item span, .major-phase-item small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.major-phase-item strong { color: var(--gold); font: 600 14px var(--font-serif); }
.major-phase-item span { margin-top: 5px; font-size: 11px; }
.major-phase-item small { margin-top: 3px; color: var(--muted); font-size: 10px; }
.calendar-export { min-height: 40px; display: flex; align-items: center; justify-content: center; gap: 7px; margin: 10px auto 0; padding: 0 14px; border: 1px solid var(--line); border-radius: 5px; color: var(--ice); background: rgba(7,11,18,.55); cursor: pointer; font-size: 11px; }
.calendar-export svg { width: 17px; height: 17px; }
.primary-button, .secondary-button { min-height: 50px; border-radius: 6px; padding: 0 20px; cursor: pointer; font-weight: 600; }
.primary-button { width: 100%; border: 0; background: var(--gold); color: #17140d; }
.primary-button:disabled, .secondary-button:disabled { opacity: .5; cursor: wait; }
.secondary-button { border: 1px solid var(--line); background: rgba(255,255,255,.035); }
.mini-result { margin-top: 30px; padding-top: 28px; border-top: 1px solid var(--line); text-align: center; }
.mini-result canvas { width: min(70vw, 300px); aspect-ratio: 1; display: block; margin: 0 auto 10px; }
.mini-result span, .mini-result strong { display: block; }
.mini-result span { color: var(--muted); font-size: 12px; }
.mini-result strong { font: 600 28px/1.5 var(--font-serif); }
.mini-result p { color: var(--muted); font-size: 13px; }
.mini-result .secondary-button { margin-top: 10px; }
.favorites-section { margin-top: 42px; padding-top: 26px; border-top: 1px solid var(--line); }
.favorites-heading { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 14px; }
.favorites-heading h2 { margin: 0; font: 600 22px var(--font-serif); }
.favorites-heading span { color: var(--muted); font-size: 10px; }
.favorites-list { display: grid; gap: 8px; }
.favorite-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; min-height: 58px; border: 1px solid var(--line); background: rgba(8,13,22,.68); }
.favorite-open { min-width: 0; height: 100%; padding: 10px 14px; border: 0; background: transparent; text-align: left; cursor: pointer; }
.favorite-open strong, .favorite-open span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.favorite-open strong { font-size: 13px; font-weight: 500; }
.favorite-open span { margin-top: 4px; color: var(--muted); font-size: 10px; }
.favorite-remove { width: 48px; height: 44px; border: 0; border-left: 1px solid var(--line); color: var(--muted); background: transparent; font-size: 20px; cursor: pointer; }
.empty-state { margin: 0; padding: 18px; border: 1px dashed var(--line); color: var(--muted); text-align: center; font-size: 12px; }
.toast { position: fixed; z-index: 40; left: 50%; bottom: calc(102px + var(--safe-bottom)); transform: translate(-50%, 12px); max-width: calc(100% - 36px); padding: 10px 16px; border: 1px solid rgba(231,201,133,.28); border-radius: 6px; color: var(--text); background: rgba(15,20,29,.94); box-shadow: 0 12px 35px rgba(0,0,0,.45); opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; font-size: 12px; text-align: center; }
.toast.visible { opacity: 1; transform: translate(-50%, 0); }
.poster-frame { width: min(76vw, 360px); margin: 0 auto 22px; aspect-ratio: 750 / 1334; border: 1px solid var(--line); background: #05070b; box-shadow: 0 24px 60px rgba(0,0,0,.45); }
.segmented { width: min(76vw, 360px); height: 42px; display: grid; grid-template-columns: 1fr 1fr; margin: -18px auto 14px; padding: 3px; border: 1px solid var(--line); border-radius: 6px; background: rgba(7,11,18,.62); }
.segmented button { border: 0; border-radius: 4px; color: var(--muted); background: transparent; cursor: pointer; font-size: 12px; }
.segmented button.active { color: #17140d; background: var(--gold); }
.memory-segmented { width: 100%; margin: -8px 0 24px; }
.pair-fields { display: grid; grid-template-columns: 1fr 44px 1fr; align-items: end; gap: 8px; }
.pair-fields .field { min-width: 0; }
.pair-fields input { min-width: 0; }
.swap-button { width: 44px; height: 50px; margin-bottom: 0; border: 1px solid var(--line); border-radius: 6px; color: var(--ice); background: rgba(255,255,255,.035); cursor: pointer; }
.swap-button svg { width: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.pair-result { margin-top: 30px; padding-top: 26px; border-top: 1px solid var(--line); text-align: center; }
.pair-moons { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.pair-moons article { min-width: 0; }
.pair-moons canvas { display: block; width: 100%; aspect-ratio: 1; }
.pair-moons span, .pair-moons strong { display: block; }
.pair-moons span { color: var(--muted); font-size: 11px; }
.pair-moons strong { margin-top: 4px; font: 600 21px var(--font-serif); }
.pair-moons p { min-height: 38px; margin: 5px 0 0; color: var(--muted); font-size: 11px; line-height: 1.7; white-space: pre-line; }
.pair-message { margin: 24px 0 18px; color: var(--text); font: 500 16px/1.8 var(--font-serif); }
.pair-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.saved-pairs { margin-top: 38px; padding-top: 24px; border-top: 1px solid var(--line); }
.poster-frame canvas { width: 100%; height: 100%; display: block; }
.poster-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.poster-tip { text-align: center; color: var(--muted); font-size: 11px; }
.text-button { display: block; margin: 12px auto 0; min-height: 36px; border: 0; color: var(--ice); background: transparent; cursor: pointer; font-size: 12px; text-decoration: underline; text-underline-offset: 4px; }
dialog { width: min(calc(100% - 36px), 440px); border: 1px solid var(--line); border-radius: 8px; padding: 28px; color: var(--text); background: #111721; box-shadow: 0 30px 80px rgba(0,0,0,.7); }
dialog::backdrop { background: rgba(0,0,0,.72); backdrop-filter: blur(5px); }
dialog h2 { font: 600 26px var(--font-serif); }
dialog p { color: var(--muted); line-height: 1.8; font-size: 13px; }
.dialog-close { position: absolute; right: 14px; top: 12px; font-size: 27px; color: var(--muted); }
.setting-group { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 22px 0; padding: 0; border: 0; }
.setting-group legend { grid-column: 1 / -1; margin-bottom: 8px; color: var(--muted); font-size: 11px; }
.setting-group label { position: relative; }
.setting-group input { position: absolute; opacity: 0; }
.setting-group span { min-height: 44px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 5px; color: var(--muted); cursor: pointer; }
.setting-group input:checked + span { border-color: var(--gold); color: #17140d; background: var(--gold); }
.range-setting { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; }
.range-setting output { color: var(--gold); }
.range-input { width: 100%; margin: 14px 0 6px; accent-color: var(--gold); }
.save-dialog { max-height: calc(100svh - 28px); overflow: auto; text-align: center; }
.save-dialog h2 { margin-bottom: 4px; }
.save-dialog img { display: block; width: min(100%, 300px); height: auto; margin: 18px auto 14px; border: 1px solid var(--line); background: #05070b; }
.save-download { display: grid; place-items: center; width: 100%; color: var(--text); text-decoration: none; }
@media (min-width: 720px) { .app-shell { border-inline: 1px solid rgba(255,255,255,.04); } }
@media (max-height: 700px) { .date-block { padding-top: 0; min-height: 112px; } .moon-stage { min-height: 340px; } .moon-canvas { max-width: 320px; } .metrics { margin-top: 10px; } }
@media (max-width: 480px) {
  .pair-fields { grid-template-columns: 1fr; gap: 0; }
  .pair-fields .field { width: 100%; }
  .pair-fields input { width: 100%; min-width: 0; font-size: 16px; }
  .swap-button { width: 44px; height: 40px; margin: -6px auto 10px; transform: rotate(90deg); }
  .pair-actions { margin-bottom: 18px; }
}
@media (max-width: 390px) { .app-shell { padding-inline: 12px; } .bottom-nav { width: calc(100% - 16px); } .nav-item { font-size: 10px; } .nav-icon { width: 19px; height: 19px; } .calendar-day canvas { width: min(100%, 38px); } .major-phase-item { padding-inline: 1px; } }
@media (max-width: 390px) { .pair-moons { gap: 8px; } .pair-moons strong { font-size: 18px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .01ms !important; scroll-behavior: auto !important; } }