/* 视觉：老 ketchup.day 的底子（奶油纸、墨黑、番茄红、青柠），但做减法：
   - 每屏只有一个重点：一个番茄红高亮词 + 一个主按钮，主按钮是全屏唯一带硬阴影的东西
   - 卡片不描粗边、不歪、不加阴影，靠留白和字号分层
   字体全部自托管（国内微信里打不开 Google Fonts）：
   得意黑 Smiley Sans 只用在标题；正文用系统苹方；英文数字用 Space Grotesk */
@font-face{font-family:'Smiley';src:url(/fonts/smiley-sans.woff2?v=6) format('woff2');font-display:swap}
@font-face{font-family:'Archivo';src:url(/fonts/archivo-black.woff2) format('woff2');font-display:swap}
@font-face{font-family:'Grotesk';src:url(/fonts/space-grotesk-500.woff2) format('woff2');font-weight:500;font-display:swap}
@font-face{font-family:'Grotesk';src:url(/fonts/space-grotesk-700.woff2) format('woff2');font-weight:700;font-display:swap}

:root{
  --ink:#141311;
  --paper:#f6f1e7;
  --card:#fffdf9;
  --tomato:#ff4d2e;
  --tomato-soft:#ffe6df;
  --lime:#c8f04a;
  --lime-soft:#eff8d2;
  --blue:#3d5afe;
  --muted:#7a756c;
  --faint:#b3ab9d;
  --line:rgba(20,19,17,.1);
  --display:'Smiley',-apple-system,'PingFang SC',sans-serif;
  --text:'Grotesk',-apple-system,BlinkMacSystemFont,'PingFang SC','Hiragino Sans GB','Noto Sans SC',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
[hidden]{display:none!important}
html{background:var(--paper)}
body{font-family:var(--text);background:var(--paper);color:var(--ink);font-weight:500;-webkit-font-smoothing:antialiased;min-height:100svh}
::selection{background:var(--lime)}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}

/* ---------- 顶栏 ---------- */
.nav{display:flex;justify-content:space-between;align-items:center;max-width:520px;margin:0 auto;padding:16px 20px 4px}
.logo{font-family:var(--display);font-size:21px}
.logo i{font-family:'Archivo';font-style:normal;color:var(--tomato);margin:0 2px;font-size:17px}
.nav-right{display:flex;align-items:center;gap:6px;min-width:0}
.nav-pills{display:flex;gap:6px}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;border-radius:99px;padding:7px 12px;background:rgba(20,19,17,.06);white-space:nowrap}
.pill-hot{background:var(--ink,#141311);color:#fffdf9}
.pill .n{background:var(--tomato);color:#fff;border-radius:99px;font-size:11px;line-height:16px;padding:0 6px;font-family:'Grotesk';font-weight:700}

.app{max-width:520px;margin:0 auto;padding:8px 20px 160px}
.screen{animation:rise .3s cubic-bezier(.2,.8,.2,1)}
.app[data-painted] .screen{animation:none}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------- 文字 ---------- */
.kicker{font-size:13px;font-weight:700;color:var(--muted);margin:18px 0 10px}
.kicker b{color:var(--tomato);font-weight:700}
.h1{font-family:var(--display);font-size:clamp(38px,11vw,50px);line-height:1.12;margin-bottom:12px}
.h1 .hl{background:var(--tomato);color:#fff;padding:0 8px;border-radius:8px;display:inline-block;transform:rotate(-1.5deg)}
.h1.sm{font-size:clamp(30px,8.6vw,38px)}
.h2{font-family:var(--display);font-size:28px;line-height:1.2;margin-bottom:6px}
.sub{font-family:var(--display);font-size:clamp(22px,6.2vw,26px);line-height:1.35;color:#4a463f;margin-bottom:18px}
.sub em{font-style:normal;background:linear-gradient(transparent 58%,var(--lime) 58%)}
.lead{font-size:15.5px;line-height:1.7;color:var(--muted);margin-bottom:22px}
.lead b{color:var(--ink)}
.note{font-size:13px;line-height:1.6;color:var(--muted)}

/* ---------- 按钮：主按钮是每屏唯一的重点 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;min-height:56px;padding:14px 22px;
     font-family:var(--display);font-size:21px;border-radius:99px;transition:transform .12s,box-shadow .12s}
.btn-primary{background:var(--tomato);color:#fff;border:2px solid var(--ink);box-shadow:3px 4px 0 var(--ink)}
.btn-primary:active{transform:translate(2px,3px);box-shadow:1px 1px 0 var(--ink)}
.btn-primary[disabled]{background:#e6dfd2;color:var(--faint);border-color:transparent;box-shadow:none;cursor:not-allowed;transform:none}
.btn-line{background:transparent;border:1.5px solid rgba(20,19,17,.25);min-height:50px;font-size:18px}
.btn-line:active{background:rgba(20,19,17,.05)}
.btn-dark{background:var(--ink);color:var(--paper);min-height:50px;font-size:18px}
.link{display:block;text-align:center;font-size:14px;font-weight:700;color:var(--muted);padding:10px;text-decoration:underline;text-underline-offset:4px;text-decoration-color:rgba(20,19,17,.25)}

button.link{width:100%}
.dock{position:fixed;left:0;right:0;bottom:0;z-index:20;padding:20px 20px calc(16px + env(safe-area-inset-bottom));
      background:linear-gradient(180deg,rgba(246,241,231,0),var(--paper) 30%)}
.dock-in{max-width:480px;margin:0 auto;display:flex;flex-direction:column;gap:4px}

/* ---------- 卡：轻 ---------- */
.card{position:relative;background:var(--card);border-radius:20px;padding:16px 18px;margin-bottom:12px;box-shadow:0 1px 0 var(--line),0 0 0 1px var(--line)}
.card .head{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;padding:3px 10px;border-radius:99px}
.tag::before{content:'';width:7px;height:7px;border-radius:50%}
.tag.jx{background:var(--tomato-soft);color:#c2321a}
.tag.jx::before{background:var(--tomato)}
.tag.jd{background:var(--lime-soft);color:#4d6410}
.tag.jd::before{background:#9bc41f}
.card .opener{font-size:12.5px;color:var(--faint)}
.card .body{font-size:17px;line-height:1.65;font-weight:600;white-space:pre-wrap;word-break:break-word}
.card .reply{margin-top:12px;padding-top:12px;border-top:1px dashed rgba(20,19,17,.15);font-size:15px;line-height:1.6;font-weight:600}
.card .reply b{color:var(--blue);margin-right:6px}
.card .meta{margin-top:10px;font-size:12px;color:var(--faint);font-weight:600;display:flex;justify-content:space-between;gap:10px}
.card .meta .on{color:#5b7a10}
.card .dot{position:absolute;left:-4px;top:22px;width:8px;height:8px;border-radius:50%;background:var(--tomato)}
.card.press{cursor:pointer;transition:transform .12s}
.card.press:active{transform:scale(.985)}
.card-fly{animation:fly .6s cubic-bezier(.2,.8,.2,1) both}
@keyframes fly{from{opacity:0;transform:translateY(40px) scale(.96)}to{opacity:1;transform:none}}

/* ---------- 墙的头：全站最重的一块，只在墙上出现 ---------- */
.boxhead{background:var(--ink);color:var(--paper);border-radius:24px;padding:22px 22px 24px;margin:8px 0 26px}
.boxhead .owner{font-size:13.5px;font-weight:700;color:rgba(246,241,231,.6);margin-bottom:12px}
.boxhead .owner b{color:var(--paper)}
.boxhead .q{font-family:var(--display);font-size:clamp(28px,8vw,34px);line-height:1.25}
.boxhead .q .r{color:var(--tomato)}
.boxhead .q em{font-style:normal;color:var(--lime);white-space:nowrap}
.owner-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;font-weight:700;color:var(--muted);margin:4px 0 10px}

.section{display:flex;align-items:baseline;justify-content:space-between;margin:0 2px 12px;font-size:13px;font-weight:700;color:var(--muted)}
.empty{text-align:center;padding:36px 16px;color:var(--muted);font-size:14px;line-height:1.7}
.empty b{display:block;font-family:var(--display);font-weight:400;font-size:22px;color:var(--ink);margin-bottom:4px}

/* ---------- 输入 ---------- */
.input{width:100%;height:56px;border:1.5px solid rgba(20,19,17,.15);border-radius:16px;background:var(--card);padding:0 18px;font-family:var(--display);font-size:22px;outline:none}
.input:focus{border-color:var(--ink)}
.err{color:var(--tomato);font-size:13.5px;font-weight:700;margin:8px 4px 0}

/* ---------- 写卡 ---------- */
.types{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0 16px}
.type{text-align:left;border-radius:18px;padding:14px;background:var(--card);box-shadow:0 0 0 1px var(--line);transition:box-shadow .15s,transform .15s}
.type b{display:block;font-family:var(--display);font-weight:400;font-size:22px;margin-bottom:4px}
.type span{display:block;font-size:12.5px;line-height:1.5;color:var(--muted)}
.type.jx.on{box-shadow:0 0 0 2px var(--tomato);background:var(--tomato-soft)}
.type.jd.on{box-shadow:0 0 0 2px #9bc41f;background:var(--lime-soft)}
.type.off{opacity:.5}
.paper{background:var(--card);border-radius:20px;padding:14px 18px 10px;box-shadow:0 0 0 1px var(--line);margin-bottom:12px}
.paper .opener{font-size:13px;color:var(--faint);margin-bottom:6px}
.paper textarea{width:100%;min-height:120px;border:0;outline:0;resize:none;background:transparent;font-size:17px;line-height:1.7;font-weight:600}
.paper textarea::placeholder{color:#cdc5b6}
.paper .count{text-align:right;font-size:12px;font-weight:700;color:var(--faint)}
.opt{display:flex;align-items:center;gap:14px;padding:14px 4px;border-bottom:1px solid var(--line)}
.opt .t{flex:1}
.opt .t b{display:block;font-size:15px;font-weight:700;margin-bottom:2px}
.opt .t span{display:block;font-size:12.5px;line-height:1.5;color:var(--muted)}
.switch{flex:0 0 50px;height:30px;border-radius:99px;background:#ddd5c6;position:relative;transition:background .2s}
.switch::after{content:'';position:absolute;left:3px;top:3px;width:24px;height:24px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.2);transition:transform .2s}
.switch.on{background:var(--ink)}
.switch.on::after{transform:translateX(20px)}
.anon{font-size:13px;font-weight:700;color:var(--muted);margin:12px 4px 0}

/* ---------- 交出去了 ---------- */
.done{display:grid;place-items:center;width:56px;height:56px;border-radius:50%;background:var(--lime);margin:22px 0 14px;font-family:'Archivo';font-size:24px}

/* ---------- 收件箱 ---------- */
.meta-line{font-size:14px;color:var(--muted);font-weight:600;margin-bottom:18px}
.meta-line b{color:var(--ink)}
.meta-line .hot{color:var(--tomato)}
.actions{display:flex;gap:10px;align-items:center;margin-bottom:22px}
.actions .btn{width:auto;flex:1;min-height:48px;font-size:18px}
.tabs{display:flex;gap:18px;margin:0 2px 14px;border-bottom:1px solid var(--line)}
.tabs button{padding:8px 0 10px;font-size:14px;font-weight:700;color:var(--faint);border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs button.on{color:var(--ink);border-color:var(--ink)}

/* ---------- 卡详情 ---------- */
.reply-box{background:var(--card);border-radius:18px;padding:12px 16px;box-shadow:0 0 0 1px var(--line);margin:4px 0 8px}
.reply-box textarea{width:100%;min-height:52px;border:0;outline:0;resize:none;font-size:16px;line-height:1.6;font-weight:600;background:transparent}
.reply-box textarea::placeholder{color:#cdc5b6}
.hint{font-size:13px;line-height:1.55;color:var(--muted);font-weight:600;margin:0 4px 16px}
.hint b{color:var(--ink)}
.stack{display:flex;flex-direction:column;gap:10px}

/* ---------- 分享：海报 ---------- */
.poster{display:block;width:100%;border-radius:18px;box-shadow:0 0 0 1px var(--line),0 12px 30px rgba(20,19,17,.12);margin:6px 0 14px;background:#fff;min-height:200px}
.how{display:flex;gap:10px;align-items:center;justify-content:center;font-size:14px;font-weight:700;margin-bottom:8px}
.how i{font-style:normal;background:var(--lime);border-radius:99px;padding:2px 10px}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:22px 0 6px}
.compare div{background:var(--card);border-radius:16px;padding:12px 14px;box-shadow:0 0 0 1px var(--line);font-size:12.5px;line-height:1.55;color:var(--muted)}
.compare b{display:block;font-size:14px;color:var(--ink);margin-bottom:2px}
.guide{position:fixed;inset:0;z-index:60;background:rgba(20,19,17,.88);color:var(--paper);animation:rise .2s}
.guide .arrow{position:absolute;right:22px;top:8px;width:90px;height:90px}
.guide .txt{position:absolute;right:24px;left:24px;top:110px;text-align:right;font-family:var(--display);font-size:28px;line-height:1.35}
.guide .txt em{font-style:normal;color:var(--lime)}
.guide .s{display:block;font-family:var(--text);font-size:14px;margin-top:10px;color:#d6d0c3}

/* ---------- 动线页 ---------- */
.role{margin-bottom:28px}
.role h3{font-family:var(--display);font-weight:400;font-size:24px;margin-bottom:2px}
.role .why{font-size:13.5px;color:var(--muted);line-height:1.55;margin-bottom:12px}
.role ol{list-style:none;counter-reset:s;background:var(--card);border-radius:18px;padding:16px 16px 4px;box-shadow:0 0 0 1px var(--line)}
.role li{counter-increment:s;position:relative;padding:0 0 12px 34px;font-size:14.5px;line-height:1.55}
.role li::before{content:counter(s);position:absolute;left:0;top:0;width:22px;height:22px;border-radius:50%;background:var(--ink);color:var(--paper);
                 display:grid;place-items:center;font-size:12px;font-weight:700}
.role li b{font-weight:700}
.role li .go{margin-left:6px;font-size:12.5px;font-weight:700;color:var(--tomato)}

/* ---------- 浮层 ---------- */
.toast{position:fixed;left:50%;bottom:120px;transform:translateX(-50%);z-index:80;background:var(--ink);color:var(--paper);padding:11px 18px;border-radius:99px;
       font-size:14px;font-weight:700;white-space:nowrap;animation:rise .2s}
.modal{position:fixed;inset:0;z-index:70;background:rgba(20,19,17,.4);display:flex;align-items:flex-end;justify-content:center;padding:14px;animation:rise .15s}
.modal .sheet{width:100%;max-width:480px;background:var(--paper);border-radius:24px;padding:22px 18px 14px;margin-bottom:env(safe-area-inset-bottom)}
.modal .sheet h4{font-family:var(--display);font-weight:400;font-size:24px;margin-bottom:6px}
.modal .sheet p{font-size:14px;line-height:1.6;color:var(--muted);margin-bottom:18px}
.loading{padding:90px 0;text-align:center;font-size:14px;font-weight:700;color:var(--faint)}
.foot{margin-top:36px;text-align:center;font-size:12px;color:var(--faint);line-height:1.8}
.foot a{text-decoration:underline;text-underline-offset:3px}

@media (prefers-reduced-motion:reduce){.screen,.card-fly{animation:none}}

/* ---------- 记得信箱：回应、配文、征集页 ---------- */
.boxhead .ask{margin-top:12px;font-size:15px;line-height:1.6;color:rgba(246,241,231,.75);font-weight:600}
.anon-line{text-align:center;font-size:12.5px;font-weight:700;color:var(--muted);margin-bottom:6px}
.caption{display:block;width:100%;text-align:left;background:var(--card);border-radius:14px;padding:12px 14px;margin-bottom:8px;
         box-shadow:0 0 0 1px var(--line);font-size:14.5px;line-height:1.55;font-weight:600}
.caption:active{background:var(--lime-soft)}
.reacts{display:flex;gap:8px;margin:0 0 12px}
.react-btn{flex:1;min-height:46px;border-radius:14px;background:var(--card);box-shadow:0 0 0 1px var(--line);font-family:var(--display);font-size:18px}
.react-btn.on{background:var(--ink);color:var(--paper);box-shadow:none}
.react-btn.recalled.on{background:var(--tomato);color:#fff}
.card .answer{margin-top:12px;padding-top:12px;border-top:1px dashed rgba(20,19,17,.15)}
.card .answer .reply{margin-top:8px;padding-top:0;border-top:0}
.card .react{display:inline-block;font-size:13px;font-weight:700;padding:3px 10px;border-radius:99px;background:rgba(20,19,17,.06)}
.card .react.recalled{background:var(--tomato);color:#fff}
.card .react.kept{background:var(--lime-soft);color:#4d6410}
.card .meta .hot{color:var(--tomato)}

/* ---------- 顶栏里的背景歌：一颗小胶囊，不占一行 ---------- */
.song{display:inline-flex;align-items:center;gap:7px;min-width:0;height:32px;padding:0 11px 0 4px;border-radius:99px;background:rgba(20,19,17,.06);font-size:12.5px;font-weight:700;color:var(--muted)}
.song i{flex:0 0 24px;height:24px;border-radius:50%;background:var(--ink);position:relative}
.song i::before{content:'';position:absolute;left:9px;top:7px;border-style:solid;border-width:5px 0 5px 8px;border-color:transparent transparent transparent var(--paper)}
.song.on i{background:var(--tomato);animation:spin 3s linear infinite}
.song.on i::before{left:8px;top:8px;width:3px;height:8px;border:0;background:#fff;box-shadow:5px 0 0 #fff}
.song.on{color:var(--ink)}
.song span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:7.5em}
.nav-right:has(.nav-pills > :nth-child(2)) .song span{display:none}
.nav-right:has(.nav-pills > :nth-child(2)) .song{padding-right:4px}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- 统一的小件 ---------- */
.back{display:inline-block;font-size:14px;font-weight:700;color:var(--muted);padding:8px 0 2px}
.h2{margin-top:14px}
.kicker{margin:14px 0 0}
.field-label{display:block;font-size:13px;font-weight:700;color:var(--muted);margin:22px 2px 10px}
.quiet{text-align:center;font-size:14px;line-height:1.7;color:var(--muted);padding:20px 12px}
.sublinks{display:flex;gap:18px;margin:-8px 2px 22px;font-size:14px;font-weight:700;color:var(--muted)}
.sublinks a{text-decoration:underline;text-underline-offset:4px;text-decoration-color:rgba(20,19,17,.25)}
.inline-link{font-size:13px;font-weight:700;color:var(--muted);text-decoration:underline;text-underline-offset:3px;margin-left:6px}
.link-danger{margin-top:18px;font-size:13px;color:var(--faint)}
.note{margin:2px 4px 0}
.lead{margin-bottom:16px}
.paper{margin-top:14px}
.opt .t{font-size:15px;font-weight:700}
.owner-bar{flex-direction:column;align-items:flex-start;gap:0;margin:0 0 6px}
.reply-box{position:relative}
.reply-box .send{display:block;margin:6px 0 2px auto;background:var(--ink);color:var(--paper);border-radius:99px;padding:7px 16px;font-size:14px;font-weight:700}
.poster-share{width:78%;margin:4px auto 6px}
.boxhead{margin-top:6px}