/* =========================================================
   智能冰箱菜谱生成器 · 样式表
   风格：iOS 7+ 现代扁平（Human Interface 分组列表）
        #F2F2F7 系统分组底 + 纯白无边圆角卡片 + 系统色 + 大标题排版
   规则：0 渐变（仅底部操作条的功能性渐隐）、0 文字阴影、0 内高光、0 拟物
   改配色 → 只改 :root
   ========================================================= */

:root{
  /* 系统背景 */
  --void:#E6E6EB;              /* 480 之外 */
  --bg:#F2F2F7;                /* systemGroupedBackground */
  --card:#FFFFFF;
  --fill:#F2F2F7;              /* 卡片内的填充控件 */
  --fill2:#E9E9EF;             /* 分段控件轨道 */
  --sep:#E5E5EA;               /* separator */
  /* 文字 */
  --lb:#1C1C1E;                /* label */
  --lb2:#8E8E93;               /* secondaryLabel */
  --lb3:#C7C7CC;               /* tertiaryLabel */
  /* 强调 */
  --ac:#FF6A2B;                /* 主色（番茄橙） */
  --ac-tint:rgba(255,106,43,.12);
  /* 系统状态色 */
  --green:#34C759;  --green-d:#248A3D;  --green-tint:rgba(52,199,89,.14);
  --yellow:#FFC300;
  --red:#FF3B30;
  /* 形状 */
  --r-card:16px; --r-btn:14px; --r-ctl:10px;
}

/* ========== 基础 ========== */
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{overflow-x:clip;width:100%}
html{-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Hiragino Sans GB","Helvetica Neue",sans-serif;
  color:var(--lb);background:var(--void);
  -webkit-font-smoothing:antialiased;
}
button,input{font-family:inherit;font-size:100%;color:inherit;border:0;background:none;outline:none}
button{cursor:pointer;transition:opacity .15s,background .18s,color .18s,transform .1s}
button:active{opacity:.55}
::-webkit-scrollbar{display:none}
[v-cloak]{opacity:0}

.app{
  position:relative;max-width:480px;margin:0 auto;min-height:100vh;background:var(--bg);
  padding-bottom:calc(112px + env(safe-area-inset-bottom));
}

/* ========== 导航栏 ========== */
.nav{
  position:sticky;top:0;z-index:35;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:calc(11px + env(safe-area-inset-top)) 16px 11px;
  background:rgba(242,242,247,.82);backdrop-filter:saturate(180%) blur(20px);
  border-bottom:.5px solid var(--sep);
}
.nav-t{display:flex;align-items:center;gap:6px;font-size:16px;font-weight:600;letter-spacing:-.2px}
.nav-t s{text-decoration:none;font-size:12px;font-weight:500;color:var(--lb3)}
.nav-r{display:flex;align-items:center;gap:14px;flex-shrink:0}
.nav-b{
  display:flex;align-items:center;gap:4px;flex-shrink:0;
  font-size:14px;font-weight:600;color:var(--ac);padding:6px 4px;
}
.nav-b em{font-style:normal;font-size:13px;font-weight:600}

/* ========== 大标题 ========== */
.hero{padding:20px 18px 4px}
.hero h1{font-size:30px;font-weight:700;letter-spacing:-.9px;line-height:1.18}
.hero p{margin-top:7px;font-size:14px;color:var(--lb2);line-height:1.5}

/* ========== 冰箱托盘（吸顶） ========== */
.tray{
  position:sticky;z-index:30;top:calc(43px + env(safe-area-inset-top));
  display:flex;align-items:center;gap:10px;margin-top:14px;
  padding:9px 14px;background:rgba(242,242,247,.9);backdrop-filter:blur(16px);
  border-bottom:.5px solid var(--sep);
}
.tray-in{flex:1;min-width:0;display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding:1px 0}
.tray-clear{flex-shrink:0;font-size:13px;font-weight:500;color:var(--ac)}
.pill{
  flex-shrink:0;display:inline-flex;align-items:center;gap:5px;
  font-size:13px;font-weight:500;color:#fff;background:var(--ac);
  padding:6px 9px 6px 11px;border-radius:999px;
}
.pill i{font-style:normal;font-size:10px;opacity:.75}
.pill-enter-from,.pill-leave-to{opacity:0;transform:scale(.7)}
.pill-enter-active{transition:all .26s cubic-bezier(.32,1.5,.6,1)}
.pill-leave-active{transition:all .18s ease}
.pill-move{transition:transform .26s ease}

/* ========== 分区标题（在卡片外，iOS 分组列表规范） ========== */
.lbl{
  display:flex;align-items:baseline;justify-content:space-between;gap:10px;
  padding:26px 20px 8px;font-size:13px;font-weight:500;color:var(--lb2);letter-spacing:.1px;
}
.lbl b{font-size:15px;font-weight:600;color:var(--lb);letter-spacing:-.2px}
.lbl span{flex-shrink:0;font-size:13px;font-weight:600;color:var(--ac);cursor:pointer}
.lbl span:active{opacity:.5}

/* ========== 卡片 ========== */
.card{margin:0 12px;padding:14px;background:var(--card);border-radius:var(--r-card)}
.card.plain{padding:0;overflow:hidden}

/* 行（iOS 设置式：标题 + 右侧值 + chevron） */
.row{display:flex;align-items:center;gap:10px;padding:13px 14px;min-height:48px;cursor:pointer}
.row>span{font-size:16px;font-weight:400;flex-shrink:0}
.row>em{
  flex:1;min-width:0;font-style:normal;font-size:14.5px;color:var(--lb2);text-align:right;
  overflow:hidden;white-space:nowrap;text-overflow:ellipsis;
}
.row .chev{flex-shrink:0;color:var(--lb3);font-size:19px;font-weight:500;transition:transform .3s cubic-bezier(.4,0,.2,1)}
.row .chev.open{transform:rotate(90deg)}
.row:active{background:var(--fill)}

/* ========== 搜索框 ========== */
.search{
  display:flex;align-items:center;gap:7px;padding:0 11px;margin-bottom:12px;
  background:var(--fill);border-radius:var(--r-ctl);
}
.search i{font-style:normal;font-size:13px;color:var(--lb2);flex-shrink:0}
.search input{flex:1;min-width:0;padding:10px 0;font-size:16px;background:none}
.search input::placeholder{color:var(--lb2)}
.s-x{width:18px;height:18px;flex-shrink:0;border-radius:50%;background:var(--lb3);color:#fff;font-size:9px;display:grid;place-items:center}
.s-hint{font-size:13px;color:var(--lb2);margin-bottom:11px;line-height:1.5}

/* ========== 分段控件（iOS 13 式：灰轨道 + 白色滑块） ========== */
.segs{display:flex;gap:2px;padding:2px;background:var(--fill2);border-radius:9px;margin-bottom:14px}
.segs button{
  flex:1;min-width:0;padding:7px 3px;border-radius:7px;
  font-size:13px;font-weight:500;color:var(--lb);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.segs button.on{background:var(--card);font-weight:600;box-shadow:0 1px 3px rgba(0,0,0,.1),0 1px 1px rgba(0,0,0,.04)}
.segs button:active{opacity:.6}
.segs.sm button{font-size:13px}

/* ========== 食材标签 ========== */
.tags{display:flex;flex-wrap:wrap;gap:8px}
@keyframes tagIn{from{opacity:0;transform:scale(.94)}to{opacity:1;transform:none}}
.tags>*{animation:tagIn .2s ease both}
.tag{font-size:15px;font-weight:400;color:var(--lb);background:var(--fill);padding:8px 14px;border-radius:var(--r-ctl)}
.tag.on{color:#fff;background:var(--ac);font-weight:500}
.tag.on:before{content:"✓";font-size:11px;font-weight:700;margin-right:5px}

/* ========== 快捷组合 ========== */
.presets{margin-top:14px;padding-top:13px;border-top:.5px solid var(--sep)}
.presets>span{display:block;font-size:13px;color:var(--lb2);margin-bottom:9px}
.presets div{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
.presets button{flex-shrink:0;font-size:14px;font-weight:500;color:var(--ac);background:var(--ac-tint);padding:9px 14px;border-radius:var(--r-ctl)}

/* ========== 折叠面板 ========== */
.fold{max-height:0;overflow:hidden;opacity:0;transition:max-height .38s cubic-bezier(.4,0,.2,1),opacity .3s}
.fold.open{max-height:520px;opacity:1}
.grp{padding:14px 14px 0;border-top:.5px solid var(--sep)}
.grp:last-child{padding-bottom:16px}
.lb{font-size:13px;color:var(--lb2);margin-bottom:9px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:400;
  color:var(--lb);background:var(--fill);padding:8px 13px;border-radius:var(--r-ctl);
}
.chip i{font-style:normal;font-size:13px}
.chip.on{color:#fff;background:var(--ac);font-weight:500}

/* ========== 空态 / 加载 ========== */
.empty{text-align:center;padding:44px 30px}
.empty-ic{font-size:46px;line-height:1;margin-bottom:16px}
.empty p{font-size:15px;line-height:1.7;color:var(--lb2)}
.empty b{color:var(--ac);font-weight:600}

.load{display:flex;align-items:center;gap:12px;margin:0 12px 14px;padding:16px;background:var(--card);border-radius:var(--r-card)}
.load-pot{font-size:26px;animation:wok 1.05s ease-in-out infinite}
@keyframes wok{0%,100%{transform:rotate(-15deg) translateY(0)}50%{transform:rotate(15deg) translateY(-5px)}}
.load-tx{font-size:15px;font-weight:500}
.load-dots{display:flex;gap:5px;margin-top:8px}
.load-dots i{width:16px;height:3px;border-radius:2px;background:var(--fill2);transition:background .3s}
.load-dots i.on{background:var(--ac)}
.sk{margin:0 12px 11px;padding:15px;background:var(--card);border-radius:var(--r-card);display:flex;gap:13px;overflow:hidden;position:relative}
.sk u{width:56px;height:56px;border-radius:14px;background:var(--fill);flex-shrink:0}
.sk div{flex:1;padding-top:5px}
.sk i{display:block;height:12px;border-radius:6px;background:var(--fill);margin-bottom:10px}
.sk i:nth-child(1){width:44%;height:16px}
.sk i:nth-child(2){width:74%}
.sk i:nth-child(3){width:56%;margin-bottom:0}
.sk:after{content:"";position:absolute;inset:0;transform:translateX(-100%);background:linear-gradient(90deg,transparent,rgba(0,0,0,.03),transparent);animation:shim 1.3s linear infinite}
@keyframes shim{to{transform:translateX(100%)}}

/* ========== 菜谱卡片 ========== */
@keyframes cardIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.dish{position:relative;margin:0 12px 11px;border-radius:var(--r-card);overflow:hidden;animation:cardIn .36s cubic-bezier(.2,.8,.3,1) both}
.swipe-hint{position:absolute;top:0;bottom:0;width:80px;display:grid;place-items:center;font-size:20px}
.swipe-hint.l{left:0;background:var(--fill2)}
.swipe-hint.r{right:0;background:var(--ac-tint)}
.dish-in{
  position:relative;display:flex;gap:13px;padding:15px 14px;
  background:var(--card);border-radius:var(--r-card);will-change:transform;
}
.dish-in.snap{transition:transform .3s cubic-bezier(.2,.8,.3,1)}
.plate{
  width:58px;height:58px;flex-shrink:0;border-radius:15px;display:grid;place-items:center;
  font-size:28px;background:var(--ac-tint);
}
.bd{flex:1;min-width:0;padding-right:28px}
.bd h3{font-size:17px;font-weight:600;letter-spacing:-.3px;line-height:1.3}
.meta{display:flex;align-items:baseline;flex-wrap:wrap;gap:4px;margin-top:4px;font-size:13px;color:var(--lb2)}
.meta em{font-style:normal;color:var(--lb3)}
.meta .w{color:var(--red)}
.ings{margin-top:8px;font-size:13px;color:var(--lb2);line-height:1.55}
.ings span:not(:last-child):after{content:" · ";color:var(--lb3)}
.ings span.no{color:var(--ac);font-weight:600}
.tick{
  display:inline-block;margin-top:9px;font-size:12px;font-weight:600;
  padding:4px 9px;border-radius:7px;color:var(--green-d);background:var(--green-tint);
}
.tick.miss{color:var(--ac);background:var(--ac-tint)}
.why{margin-top:11px;padding-top:10px;border-top:.5px solid var(--sep);font-size:13.5px;line-height:1.55;color:var(--lb2)}
.star{position:absolute;top:11px;right:10px;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;font-size:17px;color:var(--lb3)}
.star.on{color:var(--yellow)}
.star:active{transform:scale(.82)}
.foot{text-align:center;font-size:12px;color:var(--lb3);padding:14px 26px 4px;line-height:1.7}

/* ========== 底部操作条 ========== */
.bar{position:fixed;left:0;right:0;bottom:0;z-index:40;display:flex;justify-content:center;pointer-events:none}
.bar-in{
  width:100%;max-width:480px;pointer-events:auto;display:flex;gap:10px;
  padding:24px 14px calc(14px + env(safe-area-inset-bottom));
  background:linear-gradient(to top,var(--bg) 46%,rgba(242,242,247,.86) 74%,rgba(242,242,247,0));
}
.dice{
  width:52px;height:52px;flex-shrink:0;border-radius:var(--r-btn);font-size:22px;
  background:var(--card);display:grid;place-items:center;box-shadow:0 2px 10px rgba(0,0,0,.06);
}
.dice:active{transform:scale(.93) rotate(-12deg);opacity:1;background:var(--fill2)}
.go{
  flex:1;min-width:0;height:52px;border-radius:var(--r-btn);
  font-size:17px;font-weight:600;letter-spacing:-.2px;color:#fff;background:var(--ac);
  display:flex;align-items:center;justify-content:center;gap:8px;
  box-shadow:0 4px 16px rgba(255,106,43,.28);
}
.go:active{opacity:.82}
.go[disabled]{opacity:.5}
.pot-mini{display:inline-block;animation:wok 1s ease-in-out infinite}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-7px)}40%{transform:translateX(6px)}60%{transform:translateX(-4px)}80%{transform:translateX(3px)}}
.shake{animation:shake .42s ease}

/* ========== 底部弹窗 ========== */
.sh-wrap{position:fixed;inset:0;z-index:60}
.mask{position:absolute;inset:0;background:rgba(0,0,0,.34);transition:opacity .32s}
.sh{
  position:absolute;left:50%;bottom:0;transform:translate(-50%,0);
  width:100%;max-width:480px;max-height:92vh;background:var(--bg);
  border-radius:14px 14px 0 0;display:flex;flex-direction:column;overflow:hidden;
  transition:transform .42s cubic-bezier(.25,1,.35,1);
}
.sh.drag{transition:none}
.sh-enter-from .mask,.sh-leave-to .mask{opacity:0}
.sh-enter-from .sh,.sh-leave-to .sh{transform:translate(-50%,100%)}
.grab{padding:9px 0 3px;display:grid;place-items:center;flex-shrink:0;touch-action:none;cursor:grab}
.grab i{width:36px;height:5px;border-radius:3px;background:var(--lb3)}
.sh-body{overflow-y:auto;-webkit-overflow-scrolling:touch;padding:10px 12px 16px}
.sh-hero{display:flex;gap:14px;align-items:center;padding:6px 6px 4px}
.sh-plate{width:64px;height:64px;flex-shrink:0;border-radius:17px;display:grid;place-items:center;font-size:31px;background:var(--ac-tint)}
.sh-hero h2{font-size:24px;font-weight:700;letter-spacing:-.7px;line-height:1.2}
.sh-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.sh-tags i{font-style:normal;font-size:12px;font-weight:500;color:var(--lb2);background:var(--card);padding:4px 9px;border-radius:7px}
.blk{background:var(--card);border-radius:var(--r-card);padding:15px;margin-top:12px}
.blk h4{font-size:13px;font-weight:500;color:var(--lb2);margin-bottom:12px;display:flex;justify-content:space-between}
.blk h4 s{text-decoration:none}
.il{display:flex;flex-wrap:wrap;gap:7px}
.il em{font-style:normal;font-size:13px;font-weight:500;padding:6px 10px;border-radius:9px;color:var(--green-d);background:var(--green-tint)}
.il em.no{color:var(--ac);background:var(--ac-tint)}
.il em.sea{color:var(--lb2);background:var(--fill)}
.step{display:flex;gap:12px;padding:10px 0;font-size:15px;line-height:1.55;border-top:.5px solid var(--sep)}
.step:first-of-type{border-top:0;padding-top:0}
.step u{
  text-decoration:none;flex-shrink:0;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;
  font-size:12px;font-weight:600;color:#fff;background:var(--ac);margin-top:1px;
}
.locked{margin-top:12px;font-size:13px;color:var(--lb2);background:var(--fill);border-radius:var(--r-ctl);padding:12px;text-align:center;line-height:1.55}
.tip{font-size:14.5px;line-height:1.6;color:var(--lb)}
.tip.sub{margin-top:10px;font-size:13.5px;color:var(--lb2)}
.sh-foot{
  flex-shrink:0;display:flex;gap:9px;padding:11px 14px calc(14px + env(safe-area-inset-bottom));
  border-top:.5px solid var(--sep);background:rgba(242,242,247,.94);backdrop-filter:blur(16px);
}
.sh-star{width:50px;height:50px;flex-shrink:0;border-radius:var(--r-btn);font-size:19px;color:var(--lb3);background:var(--card);display:grid;place-items:center}
.sh-star.on{color:var(--yellow)}
.jump{
  flex:1;min-width:0;height:50px;border-radius:var(--r-btn);display:flex;align-items:center;justify-content:center;
  font-size:16.5px;font-weight:600;color:#fff;text-decoration:none;background:var(--ac);white-space:nowrap;
}
.jump:active{opacity:.82}
.closer{width:50px;height:50px;flex-shrink:0;border-radius:var(--r-btn);font-size:16px;color:var(--lb2);background:var(--card);display:grid;place-items:center}

/* ========== 菜谱库 ========== */
.sh.tall{height:92vh}
.sh-head{flex-shrink:0;padding:6px 14px 12px;border-bottom:.5px solid var(--sep)}
.sh-head h2{font-size:24px;font-weight:700;letter-spacing:-.7px;margin-bottom:12px}
.sh-head .search{margin-bottom:10px;background:var(--card)}
.fchips{display:flex;gap:7px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
.fchips button{
  flex-shrink:0;font-size:13.5px;font-weight:500;color:var(--lb);
  background:var(--card);padding:7px 13px;border-radius:999px;
}
.fchips button.on{color:#fff;background:var(--ac);font-weight:600}
.lcnt{margin-top:10px;font-size:12.5px;color:var(--lb2)}
.sh-body.list{padding:12px}
.blk.rows{padding:6px 14px}
.fav-x.on{color:var(--yellow);background:transparent;font-size:15px}

/* 收藏列表 */
.fav-row{display:flex;align-items:center;gap:12px;padding:11px 0;border-top:.5px solid var(--sep);cursor:pointer}
.fav-row:first-child{border-top:0;padding-top:2px}
.fav-p{width:44px;height:44px;flex-shrink:0;border-radius:12px;display:grid;place-items:center;font-size:21px;background:var(--ac-tint)}
.fav-t{flex:1;min-width:0}
.fav-t b{display:block;font-size:16px;font-weight:500;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.fav-t s{text-decoration:none;font-size:13px;color:var(--lb2)}
.fav-t s.ok{color:var(--green-d)}
.fav-x{width:28px;height:28px;flex-shrink:0;border-radius:50%;background:var(--fill);color:var(--lb2);font-size:11px}
.fav-row .chev{flex-shrink:0;color:var(--lb3);font-size:19px}

/* ========== 抽菜转盘 ========== */
.roll{position:fixed;inset:0;z-index:70;display:grid;place-items:center;background:rgba(0,0,0,.38);backdrop-filter:blur(3px);animation:fadeIn .16s ease both}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.roll-card{
  width:76%;max-width:300px;padding:28px 22px;text-align:center;
  background:var(--card);border-radius:20px;animation:popIn .3s cubic-bezier(.32,1.5,.6,1);
}
@keyframes popIn{from{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}
.roll-em{font-size:52px;line-height:1;animation:wok .55s ease-in-out infinite}
.roll-win{height:30px;overflow:hidden;margin-top:16px}
@keyframes slotIn{from{transform:translateY(26px);opacity:0}to{transform:translateY(0);opacity:1}}
.roll-win b{display:block;font-size:20px;font-weight:600;letter-spacing:-.4px;animation:slotIn .12s ease both}
.roll-hint{margin-top:10px;font-size:13px;color:var(--lb2)}

/* ========== Toast ========== */
.toast{
  position:fixed;top:calc(62px + env(safe-area-inset-top));left:50%;transform:translate(-50%,0);
  z-index:90;max-width:300px;padding:11px 16px;border-radius:13px;
  font-size:14px;font-weight:500;color:#fff;background:rgba(28,28,30,.88);backdrop-filter:blur(10px);
  transition:all .3s cubic-bezier(.3,1.4,.5,1);pointer-events:none;text-align:center;
}
.toast-enter-from,.toast-leave-to{opacity:0;transform:translate(-50%,-16px)}

#boot{
  max-width:480px;margin:0 auto;min-height:100vh;background:var(--bg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  font-size:14px;color:var(--lb2);line-height:1.7;text-align:center;padding:30px;
}
#boot b{font-size:44px;animation:wok 1.1s ease-in-out infinite}