/* 国笺 · v3 节气色。每个节气由 app.js 写入 --season / --season-tint / --season-deep。 */
@font-face{font-family:"LXGW WenKai";src:url("./fonts/wenkai-subset.woff2") format("woff2");font-display:swap}
@font-face{font-family:"Noto Serif SC Black";src:url("./fonts/notoserif-black-subset.woff2") format("woff2");font-weight:900;font-display:block}
:root{--season:#3f4c63;--season-tint:#5a6579;--season-deep:#31394b;--paper:#f1e8d6;--paper-2:#e8dcc4;--ink:#23262c;--ink-2:#6a6356;--cinnabar:#b8382a;--on-season:#f1e8d6;--on-season-2:#d9d4c6;--line:#d8ccb4;--kai:"LXGW WenKai","Kaiti SC","STKaiti","KaiTi",serif}
*{box-sizing:border-box}
html{background:var(--season);transition:background-color .8s}
body{margin:0;min-height:100vh;background:var(--season);color:var(--on-season);font:16px/1.85 var(--kai);-webkit-font-smoothing:antialiased}
button,select{font:inherit;color:inherit;cursor:pointer}
button:focus-visible,a:focus-visible,select:focus-visible,summary:focus-visible,.slip:focus-visible{outline:2px solid var(--on-season);outline-offset:4px}
[hidden]{display:none!important}
a{color:inherit;text-underline-offset:4px}

/* ---------- 入场：节气大字 + 一支签 ---------- */
.stage{position:relative;min-height:100vh;min-height:100dvh;overflow:hidden;display:grid;grid-template-rows:auto 1fr auto;padding:max(28px,env(safe-area-inset-top)) 24px max(22px,env(safe-area-inset-bottom))}
.giant{position:absolute;left:-.12em;top:.12em;font:900 min(78vw,44vh)/.92 "Noto Serif SC Black","Songti SC",serif;color:var(--season-tint);writing-mode:vertical-rl;letter-spacing:-.02em;pointer-events:none;user-select:none}
.stage-top{position:relative;justify-self:end;text-align:right}
.brand{margin:0;font-size:23px;letter-spacing:.32em;margin-right:-.32em}
.stage-when{margin:6px 0 0;font-size:14px;line-height:1.9;letter-spacing:.14em;color:var(--on-season-2)}
.stage-when span{display:block}
.stage-poem{position:absolute;right:26px;top:clamp(150px,22vh,200px);margin:0;writing-mode:vertical-rl;max-height:52vh}
.stage-poem blockquote{margin:0;white-space:pre-line;font-size:17px;line-height:2.15;letter-spacing:.28em}
.stage-poem figcaption{margin-right:10px;font-size:12px;letter-spacing:.2em;color:var(--on-season-2)}
.slip-wrap{position:relative;display:grid;place-items:center;perspective:900px}
.slip{width:60px;height:min(300px,40vh);border-radius:30px 30px 6px 6px;background:linear-gradient(90deg,#ded1b6,var(--paper) 42%,#e6d9bf);box-shadow:0 34px 44px -20px #000a,inset 0 0 0 1px #0000001a;display:flex;flex-direction:column;align-items:center;padding-top:30px;cursor:pointer;animation:float 5s ease-in-out infinite;transform-style:preserve-3d;-webkit-tap-highlight-color:transparent}
.slip i{width:22px;height:22px;border-radius:50%;background:var(--cinnabar);margin-bottom:22px;box-shadow:inset 0 -2px 0 #0002}
.slip span{writing-mode:vertical-rl;font-size:30px;letter-spacing:.3em;color:var(--cinnabar)}
.stage-bottom{position:relative;text-align:center}
.stage-hint{margin:0 0 12px;font-size:14px;letter-spacing:.16em;color:var(--on-season-2)}
.cta{width:100%;max-width:420px;height:58px;border:0;border-radius:6px;background:var(--paper);color:var(--ink);font-size:19px;letter-spacing:.3em;box-shadow:0 14px 30px -16px #0009}
.cta:active{scale:.98}
.stage-foot{margin:14px 0 0;font-size:12px;letter-spacing:.24em;color:var(--on-season-2)}

/* 抽签：签被摇动 → 升起 → 翻转；画面淡出 */
.stage.drawing .slip{animation:sway .9s cubic-bezier(.36,.07,.19,.97) both,lift .55s .9s cubic-bezier(.2,.8,.2,1) both,turn .4s 1.45s ease-in both}
.stage.drawing .giant{animation:drift 2.2s cubic-bezier(.2,.7,.2,1) both}
.stage.drawing .stage-bottom,.stage.drawing .stage-poem,.stage.drawing .stage-top{animation:out .4s .2s ease-in both}
.stage.drawing>:not(#fx):not(.art){animation:out .4s .15s ease-in both}
.stage.reopening .slip{animation:turn .4s ease-in both}
.stage.reopening{animation:out .3s .3s ease-in both}
@keyframes float{50%{translate:0 -6px}}
@keyframes sway{0%{rotate:0deg}12%{rotate:-8deg}26%{rotate:7deg}40%{rotate:-6deg}54%{rotate:5deg}68%{rotate:-3deg}82%{rotate:2deg}100%{rotate:0deg}}
@keyframes lift{from{translate:0 0}to{translate:0 -54px;scale:1.06}}
@keyframes turn{from{transform:rotateY(0)}to{transform:rotateY(90deg)}}
@keyframes drift{to{translate:0 -6vh;opacity:.55}}
@keyframes out{to{opacity:0}}

/* ---------- 签文页 ---------- */
#content header{display:flex;justify-content:space-between;align-items:baseline;max-width:760px;margin:0 auto;padding:max(22px,env(safe-area-inset-top)) 22px 18px}
#content header .brand{font-size:20px;text-decoration:none}
#content header .brand small{display:block;font-size:12px;letter-spacing:.2em;color:var(--on-season-2);margin-top:2px}
#content header .brand span{color:inherit}
#content header>a:last-child{font-size:14px;color:var(--on-season-2)}
main{max-width:760px;margin:0 auto;padding:0 16px max(32px,env(safe-area-inset-bottom))}
.fortune{position:relative;background:var(--paper);color:var(--ink);border-radius:28px 28px 8px 8px;padding:40px 26px 30px;text-align:center;box-shadow:0 30px 60px -30px #000b;perspective:1200px}
.fortune:before{content:"";display:block;width:20px;height:20px;border-radius:50%;background:var(--cinnabar);margin:0 auto 18px}
.seal{display:inline-block;border:1.5px solid var(--cinnabar);color:var(--cinnabar);padding:2px 12px;letter-spacing:.4em;margin-right:-.4em;font-size:15px;border-radius:3px}
#number{margin:14px 0 0;font-size:13px;letter-spacing:.14em;color:var(--ink-2)}
#title{margin:6px 0 22px;font-weight:400;font-size:clamp(26px,7.6vw,34px);letter-spacing:.1em;line-height:1.4;text-wrap:balance}
.poem-label{margin:26px 0 6px;font-size:12px;letter-spacing:.3em;color:var(--ink-2)}
.poem{margin:0;white-space:pre-line;font-size:24px;line-height:1.95;letter-spacing:.12em;color:var(--cinnabar)}
.verse{margin:0 auto;max-width:30em;font-size:17px;line-height:1.95}
.classic{margin:26px 0 0;padding:20px 0 4px;border-top:1px solid var(--line)}
.classic blockquote{margin:0;white-space:pre-line;font-size:21px;line-height:1.95;letter-spacing:.08em;overflow-wrap:anywhere}
.classic a{display:inline-block;margin-top:6px;font-size:13px;color:var(--ink-2);overflow-wrap:anywhere}
.action{margin:26px -26px 0;padding:18px 26px;background:var(--paper-2);text-align:left}
.action small{display:block;font-size:12px;letter-spacing:.3em;color:var(--cinnabar)}
.action p{margin:4px 0 0;font-size:18px;line-height:1.8}
.actions{display:flex;gap:10px;margin-top:20px}
.actions button{flex:1;min-height:48px;border:1px solid var(--ink);border-radius:6px;background:transparent;font-size:15px;letter-spacing:.08em}
#save{background:var(--ink);color:var(--paper)}
.daily-basis{margin-top:24px;padding-top:16px;border-top:1px solid var(--line);text-align:left;color:var(--ink-2);font-size:14px;overflow-wrap:anywhere}
.daily-basis .poem-label{margin-top:0}
.daily-basis h3{margin:0;font-weight:400;font-size:17px;color:var(--ink)}
.daily-basis p{margin:4px 0}
#basis{white-space:pre-line}
.fine{font-size:12px;line-height:1.8;color:var(--ink-2)}
details{padding:6px 0}
summary{cursor:pointer;min-height:44px;display:flex;align-items:center}

/* 其余内容在同一张纸面上 */
.sheet{margin-top:22px;background:var(--paper);color:var(--ink);border-radius:8px;padding:8px 22px 4px}
.sheet .fine,.sheet .muted{color:var(--ink-2)}
.muted{font-size:14px}
.sheet h2{font-weight:400;letter-spacing:.12em}
.eyebrow{margin:0;font-size:12px;letter-spacing:.3em;color:var(--ink-2)}
.panel,.note,.optional-signs,.almanac,#saved,footer{padding:22px 0;border-bottom:1px solid var(--line)}
footer{border-bottom:0}
.seasonal h2{margin:4px 0 0;font-size:28px;color:var(--season)}
.season-row{display:flex;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding:8px 0}
.season-row small{font-size:13px;color:var(--ink-2)}
.season-row p{margin:0;font-size:16px;text-align:right}
.calendar-link{display:inline-block;margin-top:8px;font-size:14px;color:var(--season)}
.note span{font-size:12px;letter-spacing:.3em;color:var(--ink-2)}
.note p{font-size:19px;margin:6px 0 0}
.signs{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:12px 0}
.signs button{min-height:44px;border:1px solid var(--line);border-radius:6px;background:transparent;font-size:13px}
.signs button[aria-pressed=true]{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.theme{border-left:2px solid var(--season);padding:4px 14px;font-size:14px}
.theme strong{display:block;font-weight:400;color:var(--season);font-size:17px}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap}
.section-head h2{margin:4px 0 0;font-size:22px}
.section-head label{font-size:13px;color:var(--ink-2)}
select{display:block;margin-top:4px;max-width:100%;min-height:44px;border:1px solid var(--line);border-radius:6px;background:var(--paper);padding:6px 10px;font-size:14px}
.hours{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;margin:16px 0}
.hour{border:1px solid var(--line);border-radius:6px;padding:12px 14px}
.hour strong{font-weight:400;font-size:18px}
.hour .luck{float:right;font-size:13px;color:var(--cinnabar)}
.hour p{margin:2px 0;font-size:13px;line-height:1.7}
.hour .local{color:var(--ink-2);font-size:12px;border-bottom:1px solid var(--line);padding-bottom:6px}
.favorite{display:flex;justify-content:space-between;align-items:center;gap:14px;border-bottom:1px solid var(--line);padding:14px 0}
.favorite strong{font-weight:400;font-size:18px}
.favorite p{margin:2px 0;font-size:13px;color:var(--ink-2)}
.favorite button{flex-shrink:0;white-space:nowrap;min-height:44px;border:1px solid var(--line);border-radius:6px;background:transparent;padding:0 14px;font-size:13px}
#update{min-height:44px;border:1px solid var(--ink);border-radius:6px;background:transparent;padding:0 16px}
#toast{position:fixed;left:50%;bottom:max(24px,env(safe-area-inset-bottom));translate:-50% 0;background:var(--ink);color:var(--paper);border-radius:6px;padding:10px 18px;z-index:5;max-width:90%;font-size:14px}
#toast:empty{display:none}

/* 签纸接着入场的翻转转回来，签文逐行浮现 */
#content.revealed .fortune{animation:turnin .55s cubic-bezier(.2,.7,.2,1) both}
#content.revealed .fortune>#result>*{animation:up .6s cubic-bezier(.2,.7,.2,1) both;animation-delay:calc(.45s + var(--i,0) * .09s)}
#content.revealed #result>.seal{animation:stamp .5s .35s cubic-bezier(.3,1.6,.5,1) both}
#result>:nth-child(2){--i:1}#result>:nth-child(3){--i:2}#result>:nth-child(4){--i:3}#result>:nth-child(5){--i:4}#result>:nth-child(6){--i:5}#result>:nth-child(7){--i:6}#result>:nth-child(8){--i:7}#result>:nth-child(9){--i:8}#result>:nth-child(10){--i:9}#result>:nth-child(11){--i:10}
#content.revealed .sheet,#content.revealed header{animation:up .7s 1.3s both}
@keyframes turnin{from{transform:rotateY(-90deg) scale(.92);opacity:.6}to{transform:none;opacity:1}}
@keyframes up{from{opacity:0;translate:0 12px}to{opacity:1;translate:0 0}}
@keyframes stamp{from{opacity:0;scale:2;rotate:-8deg}to{opacity:1;scale:1;rotate:0deg}}

@media(min-width:900px){.stage-poem{right:12vw}.stage-top{margin-right:8vw}.giant{left:6vw}}
@media(max-height:680px){.slip{height:34vh}.stage-poem{top:120px}}
@media(prefers-reduced-motion:reduce){html{transition:none}.slip{animation:none}.stage.drawing .slip,.stage.drawing .giant,.stage.drawing .stage-bottom,.stage.drawing .stage-poem,.stage.drawing .stage-top,.stage.reopening .slip{animation:none}.stage.drawing,.stage.reopening{animation:out .2s both}#content.revealed .fortune,#content.revealed .fortune>#result>*,#content.revealed #result>.seal,#content.revealed .sheet,#content.revealed header{animation:fade .35s both}@keyframes fade{from{opacity:0}}}

/* 粒子层：就绪后由粒子大字取代 CSS 静态大字 */
#fx{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:0}
.giant{z-index:0;transition:opacity .8s}
.stage-top,.stage-poem,.slip-wrap,.stage-bottom{z-index:1}
.stage.fx-ready .giant{opacity:.4}
.stage.fx-ready.drawing .giant{animation:out .5s ease-in both}
.stage.fx-ready.drawing .slip{animation:out .3s ease-in both}

/* 摇一摇 */
.motion-btn{display:block;margin:0 auto 12px;min-height:40px;padding:0 16px;border:1px solid var(--on-season-2);border-radius:999px;background:transparent;color:var(--on-season);font-size:13px;letter-spacing:.12em}
.stage:not(.drawing) .slip{rotate:calc(var(--shake) * 6deg * var(--flip,1))}

/* 背景古画：节气色罩染，保证文字可读 */
.art{position:absolute;inset:0;z-index:0;background:var(--season) center/cover no-repeat;background-position:var(--focus,50% 50%);opacity:0;transition:opacity 1.4s ease}
.art.loaded{opacity:1}
.art:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,var(--season) 0%,transparent 28%,transparent 62%,var(--season) 92%),var(--season);opacity:.5;mix-blend-mode:multiply}
.art:before{content:"";position:absolute;inset:0;background:var(--season);opacity:.28}
.stage.has-art.fx-ready .giant{opacity:.2}
.stage.has-art .stage-top,.stage.has-art .stage-poem,.stage.has-art .stage-hint,.stage.has-art .stage-foot{text-shadow:0 0 10px var(--season-deep),0 1px 3px var(--season-deep)}
.art-head{margin:0 0 -40px;position:relative;border-radius:8px 8px 0 0;overflow:hidden}
.art-head-img{height:min(46vw,300px);background:center/cover no-repeat;background-position:var(--focus,50% 50%);filter:saturate(.9)}
.art-head figcaption{position:absolute;left:0;right:0;bottom:40px;padding:22px 14px 6px;text-align:right;background:linear-gradient(transparent,#0009)}
.art-head a{font-size:11px;letter-spacing:.06em;color:var(--on-season);text-shadow:0 1px 2px #0008;text-decoration:none}
.art-head+.fortune{z-index:1}
@media(prefers-reduced-motion:reduce){.art{transition:none}}

/* v3.1: quiet reading order and an always reachable ceremony exit. */
.skip{position:absolute;z-index:12;right:16px;bottom:14px;border:0;background:rgba(248,244,235,.9);color:#4c382a;padding:10px 14px;border-radius:24px;font-size:13px;min-height:44px}
.stage-bottom{padding-bottom:64px}.poem-extra,.daily-basis{margin-top:24px;text-align:left}.poem-extra summary,.daily-basis summary{cursor:pointer;color:#766655;font-size:14px;min-height:44px;padding:12px 0}.classic{margin-top:20px}.verse{margin-top:24px}.fine,figcaption{overflow-wrap:anywhere}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

.favorite label{display:block;font-size:13px;color:#756b5d;margin-top:14px}.favorite textarea{display:block;width:100%;box-sizing:border-box;resize:vertical;margin:8px 0;padding:10px;border:1px solid #d8cbb7;border-radius:8px;background:#fffaf0;color:#332e28;font:16px/1.6 inherit}.favorite label+button{font-size:13px;padding:9px 14px}.favorite>div{min-width:0;width:100%}

.account-banner{position:fixed;top:0;left:0;right:0;z-index:10;padding:10px;background:#f5f0e4;color:#332d23;text-align:center;font-size:12px}.account-panel{position:fixed;z-index:20;inset:10% 5% auto;margin:auto;max-width:480px;max-height:80vh;overflow:auto;background:#f5f0e4;color:#332d23;padding:24px;border-radius:16px;box-shadow:0 0 0 100vmax #0009}.account-panel button{display:block;width:100%;margin:12px 0}.account-panel p{line-height:1.6}#account-status{position:fixed;bottom:12px;left:10%;right:10%;z-index:11;background:#f5f0e4;color:#332d23;text-align:center}