/* 统一视觉语言：米白布纹底 + 深棕字 + 赭红强调色 */
:root{
  --bg:#F4EEE4;
  --bg-2:#EDE5D8;
  --card:#FFFCF7;
  --ink:#2A2420;
  --ink-2:#5E554C;
  --muted:#958A7D;
  --line:rgba(60,45,30,.10);
  --accent:#B6532F;
  --accent-2:#D9774F;
  --accent-soft:#F6E2D6;
  --good:#3F7D5C;
  --bad:#B6532F;
  --r-lg:22px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-1:0 1px 2px rgba(58,40,24,.06),0 4px 14px rgba(58,40,24,.06);
  --shadow-2:0 2px 4px rgba(58,40,24,.06),0 12px 32px rgba(58,40,24,.12);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",sans-serif;
  --font-math:"Times New Roman","STIXGeneral",Georgia,"Liberation Serif","DejaVu Serif","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",serif;
  --safe-b:env(safe-area-inset-bottom,0px);
  --safe-t:env(safe-area-inset-top,0px);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0;overflow-x:hidden;max-width:100%}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  font-family:var(--font);color:var(--ink);font-size:15px;line-height:1.55;
  background-color:var(--bg);
  /* 细经纬线：让底色像一块亚麻布 */
  background-image:
    repeating-linear-gradient(0deg,rgba(120,95,65,.035) 0 1px,transparent 1px 3px),
    repeating-linear-gradient(90deg,rgba(120,95,65,.03) 0 1px,transparent 1px 3px);
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
button{font-family:inherit;font-size:15px;color:inherit;border:0;background:none;padding:0;cursor:pointer}
input{font-family:inherit}
a{color:inherit;text-decoration:none}
.wrap{max-width:480px;margin:0 auto;padding:0 16px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:48px;padding:0 20px;border-radius:999px;font-weight:600;font-size:16px;
  background:var(--ink);color:#FFF8EF;
  box-shadow:0 1px 0 rgba(255,255,255,.12) inset,0 6px 16px rgba(42,36,32,.18);
  transition:transform .12s ease,box-shadow .12s ease,background .2s;
  user-select:none;-webkit-user-select:none;
}
.btn:active{transform:scale(.96);box-shadow:0 2px 6px rgba(42,36,32,.2)}
.btn.accent{background:var(--accent);box-shadow:0 1px 0 rgba(255,255,255,.18) inset,0 6px 16px rgba(182,83,47,.30)}
.btn.ghost{background:var(--card);color:var(--ink);box-shadow:var(--shadow-1);border:1px solid var(--line)}
.btn.small{height:36px;padding:0 14px;font-size:14px}
.btn[disabled]{opacity:.4;pointer-events:none}

.card{background:var(--card);border-radius:var(--r-lg);box-shadow:var(--shadow-1);border:1px solid rgba(255,255,255,.6)}

.eyebrow{font-size:13px;letter-spacing:.12em;color:var(--muted);font-weight:600}

/* 弹层 */
.sheet-mask{
  position:fixed;inset:0;z-index:50;background:rgba(30,22,16,.46);
  display:flex;align-items:flex-end;justify-content:center;
  opacity:0;transition:opacity .22s ease;
}
.sheet-mask.show{opacity:1}
.sheet{
  width:100%;max-width:480px;background:var(--card);
  border-radius:24px 24px 0 0;padding:22px 20px calc(20px + var(--safe-b));
  transform:translateY(24px);transition:transform .26s cubic-bezier(.2,.8,.2,1);
  max-height:92vh;overflow-y:auto;
}
.sheet-mask.show .sheet{transform:none}
.sheet h3{margin:0 0 6px;font-size:19px}
.sheet p{margin:0 0 12px;color:var(--ink-2)}

/* 海报弹层：图片可长按保存 */
.poster-mask{
  position:fixed;inset:0;z-index:60;background:rgba(20,15,11,.88);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:calc(16px + var(--safe-t)) 20px calc(16px + var(--safe-b));
  opacity:0;transition:opacity .22s;
}
.poster-mask.show{opacity:1}
.poster-mask img{
  display:block;max-width:100%;max-height:calc(100vh - 150px);
  border-radius:14px;box-shadow:0 18px 50px rgba(0,0,0,.45);
  -webkit-touch-callout:default;user-select:auto;
}
.poster-tip{color:#F7EFE4;font-size:15px;margin:16px 0 10px;text-align:center;letter-spacing:.04em}
.poster-tip b{color:#FFC9A8}
.poster-close{color:#D8CBBB;font-size:14px;height:40px;padding:0 22px;border:1px solid rgba(255,255,255,.25);border-radius:999px}

/* 轻提示 */
.toast{
  position:fixed;left:50%;top:40%;z-index:80;transform:translate(-50%,-50%) scale(.96);
  background:rgba(42,36,32,.92);color:#FFF6EC;padding:12px 18px;border-radius:14px;font-size:15px;
  opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;width:max-content;max-width:84vw;text-align:center;
}
.toast.show{opacity:1;transform:translate(-50%,-50%) scale(1)}

.loading-dots::after{content:"";animation:dots 1s steps(4) infinite}
@keyframes dots{0%{content:""}25%{content:"·"}50%{content:"··"}75%{content:"···"}}

.foot-note{text-align:center;color:var(--muted);font-size:13px;padding:22px 0 calc(22px + var(--safe-b))}
.foot-note b{color:var(--ink-2);font-weight:600}

@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}