/* ==========================================================================
   毛球日记 PawDiary — 样式表
   纯手写 CSS，无外部依赖（无字体/图标/CDN 外链），保证国内直连秒开
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root{
  --cream:#FFF7F1;
  --cream-2:#FDF1E8;
  --card:#FFFFFF;
  --ink:#2A211B;
  --ink-2:#6B5D53;
  --ink-3:#A2938A;
  --line:#F1E7DF;
  --line-2:#E8DBD1;

  --primary:#FF7A45;
  --primary-d:#EF6432;
  --primary-soft:#FFEBE1;
  --mint:#22BFAC;
  --mint-soft:#DFF6F2;
  --sun:#FFB020;
  --sun-soft:#FFF2D9;
  --rose:#FF6B8A;
  --rose-soft:#FFE7EC;
  --violet:#8B7CF6;
  --violet-soft:#EEEBFF;

  --r-xs:8px; --r-sm:12px; --r-md:18px; --r-lg:24px; --r-xl:32px; --r-full:999px;

  --sh-1:0 1px 2px rgba(74,50,35,.05), 0 4px 12px rgba(74,50,35,.05);
  --sh-2:0 2px 6px rgba(74,50,35,.06), 0 14px 32px rgba(74,50,35,.09);
  --sh-3:0 8px 24px rgba(74,50,35,.10), 0 32px 64px rgba(74,50,35,.13);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
          "Noto Sans CJK SC", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* ---------- 基础 ---------- */
*{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; }
body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  background:var(--cream);
  background-image:
    radial-gradient(1100px 520px at 8% -8%, #FFE7D9 0%, rgba(255,231,217,0) 62%),
    radial-gradient(900px 460px at 102% 4%, #E2F6F2 0%, rgba(226,246,242,0) 58%);
  background-attachment:fixed;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{ margin:0; line-height:1.3; font-weight:800; letter-spacing:-.01em; }
p{ margin:0; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; font-size:inherit; cursor:pointer; border:0; background:none; color:inherit; }
ul{ margin:0; padding:0; list-style:none; }
img{ max-width:100%; display:block; }
::selection{ background:var(--primary-soft); }

/* 滚动条 */
::-webkit-scrollbar{ width:10px; height:10px; }
::-webkit-scrollbar-thumb{ background:#E6D8CD; border-radius:99px; border:3px solid transparent; background-clip:content-box; }
::-webkit-scrollbar-thumb:hover{ background:#D6C3B4; background-clip:content-box; }
::-webkit-scrollbar-track{ background:transparent; }

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky; top:0; z-index:60;
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  background:rgba(255,247,241,.82);
  border-bottom:1px solid rgba(232,219,209,.7);
}
.topbar-inner{
  max-width:1240px; margin:0 auto; padding:10px 22px;
  display:flex; align-items:center; justify-content:space-between; gap:16px;
}
.brand{ display:flex; align-items:center; gap:11px; }
.brand-mark{
  width:40px; height:40px; border-radius:13px; display:grid; place-items:center;
  background:linear-gradient(145deg,#FF9A6B,#FF6B35); font-size:20px;
  box-shadow:0 4px 12px rgba(255,107,53,.32);
}
.brand-text{ display:flex; flex-direction:column; line-height:1.15; }
.brand-text b{ font-size:16.5px; letter-spacing:.01em; }
.brand-text i{ font-style:normal; font-size:10.5px; color:var(--ink-3); letter-spacing:.14em; text-transform:uppercase; }

.modes{ display:flex; gap:4px; background:#F4E9E0; padding:4px; border-radius:var(--r-full); }
.mode-btn{
  padding:8px 18px; border-radius:var(--r-full); font-size:14px; font-weight:700;
  color:var(--ink-2); transition:.22s;
}
.mode-btn:hover{ color:var(--ink); }
.mode-btn.active{ background:#fff; color:var(--primary-d); box-shadow:var(--sh-1); }

/* ---------- 版心 ---------- */
.page{ max-width:1240px; margin:0 auto; padding:34px 22px 60px; }
.page-narrow{ max-width:920px; }

/* ==========================================================================
   一、产品设计文档
   ========================================================================== */
.hero{ text-align:center; padding:26px 0 46px; }
.hero-tag{
  display:inline-flex; align-items:center; gap:8px; padding:7px 16px; border-radius:var(--r-full);
  background:#fff; border:1px solid var(--line-2); font-size:13px; font-weight:600; color:var(--ink-2);
  box-shadow:var(--sh-1); margin-bottom:22px;
}
.hero-tag .pulse{ width:7px; height:7px; border-radius:50%; background:var(--mint); box-shadow:0 0 0 4px var(--mint-soft); }
.hero h1{ font-size:clamp(30px,5.2vw,50px); letter-spacing:-.03em; line-height:1.16; }
.hero h1 .hl{
  background:linear-gradient(180deg,transparent 62%, var(--primary-soft) 62%);
  padding:0 4px;
}
.hero .sub{ margin:20px auto 0; max-width:660px; font-size:16.5px; color:var(--ink-2); }
.hero-cta{ margin-top:30px; display:flex; gap:12px; justify-content:center; flex-wrap:wrap; }

.btn{
  display:inline-flex; align-items:center; gap:8px; padding:12px 24px; border-radius:var(--r-full);
  font-weight:700; font-size:15px; transition:.2s; white-space:nowrap;
}
.btn-primary{ background:linear-gradient(145deg,#FF8B55,#F5652E); color:#fff; box-shadow:0 6px 18px rgba(245,101,46,.32); }
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 10px 26px rgba(245,101,46,.38); }
.btn-ghost{ background:#fff; color:var(--ink); border:1px solid var(--line-2); box-shadow:var(--sh-1); }
.btn-ghost:hover{ transform:translateY(-2px); box-shadow:var(--sh-2); }
.btn-sm{ padding:8px 16px; font-size:13.5px; }

/* 指标条 */
.stats{ display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin:8px 0 54px; }
.stat{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-md); padding:20px 18px;
  box-shadow:var(--sh-1); position:relative; overflow:hidden;
}
.stat::after{ content:""; position:absolute; inset:auto -30px -34px auto; width:88px; height:88px; border-radius:50%; background:var(--cream-2); }
.stat b{ display:block; font-size:27px; letter-spacing:-.02em; position:relative; }
.stat b em{ font-style:normal; font-size:15px; font-weight:700; margin-left:2px; }
.stat span{ font-size:12.5px; color:var(--ink-3); position:relative; }

/* 区块 */
.sec{ margin:0 0 58px; scroll-margin-top:80px; }
.sec-head{ display:flex; align-items:baseline; gap:13px; margin-bottom:8px; }
.sec-num{
  font-family:var(--mono); font-size:12px; font-weight:700; color:var(--primary);
  background:var(--primary-soft); padding:4px 9px; border-radius:var(--r-xs); letter-spacing:.04em;
}
.sec-head h2{ font-size:24px; }
.sec-desc{ color:var(--ink-2); font-size:15px; max-width:760px; margin-bottom:24px; }

/* 痛点卡 */
.pains{ display:grid; grid-template-columns:repeat(auto-fit,minmax(258px,1fr)); gap:16px; }
.pain{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-md); padding:22px;
  box-shadow:var(--sh-1); transition:.24s; position:relative;
}
.pain:hover{ transform:translateY(-3px); box-shadow:var(--sh-2); border-color:#F3DFD2; }
.pain-ico{
  width:42px; height:42px; border-radius:13px; display:grid; place-items:center; font-size:20px; margin-bottom:14px;
}
.pain h3{ font-size:16px; margin-bottom:8px; }
.pain p{ font-size:14px; color:var(--ink-2); }
.pain .quote{
  margin-top:14px; padding:9px 13px; border-left:3px solid var(--line-2); background:var(--cream);
  border-radius:0 var(--r-xs) var(--r-xs) 0; font-size:13px; color:var(--ink-2); font-style:italic;
}

/* 竞品表 */
.table-wrap{ overflow-x:auto; border-radius:var(--r-md); border:1px solid var(--line); background:#fff; box-shadow:var(--sh-1); }
table.cmp{ width:100%; border-collapse:collapse; font-size:14px; min-width:720px; }
table.cmp th, table.cmp td{ padding:14px 16px; text-align:left; border-bottom:1px solid var(--line); vertical-align:top; }
table.cmp thead th{ background:var(--cream-2); font-size:13px; color:var(--ink-2); letter-spacing:.02em; white-space:nowrap; }
table.cmp tbody tr:last-child td{ border-bottom:0; }
table.cmp .us{ background:linear-gradient(180deg,#FFF6F1,#FFEFE7); }
table.cmp .us td{ font-weight:600; }
table.cmp .us td:first-child{ color:var(--primary-d); }
.yes{ color:var(--mint); font-weight:800; }
.no{ color:#D9C7BB; }

/* 功能地图 */
.map{ display:grid; grid-template-columns:repeat(auto-fit,minmax(216px,1fr)); gap:14px; }
.map-col{ background:#fff; border:1px solid var(--line); border-radius:var(--r-md); padding:18px; box-shadow:var(--sh-1); }
.map-col h4{ font-size:14.5px; display:flex; align-items:center; gap:9px; margin-bottom:14px; }
.map-col h4 .pip{ width:26px; height:26px; border-radius:9px; display:grid; place-items:center; font-size:14px; }
.map-col li{ font-size:13.5px; color:var(--ink-2); padding:7px 0 7px 17px; position:relative; border-top:1px dashed var(--line); }
.map-col li:first-child{ border-top:0; }
.map-col li::before{ content:""; position:absolute; left:2px; top:15px; width:6px; height:6px; border-radius:50%; background:var(--line-2); }
.map-col li b{ color:var(--ink); font-weight:700; }
.map-col li .star{ color:var(--sun); font-size:11px; margin-left:5px; }

/* 流程 */
.flows{ display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:16px; }
.flow{ background:#fff; border:1px solid var(--line); border-radius:var(--r-md); padding:22px; box-shadow:var(--sh-1); }
.flow h3{ font-size:15px; margin-bottom:18px; display:flex; align-items:center; gap:9px; }
.flow-steps{ display:flex; flex-direction:column; gap:0; }
.fstep{ display:flex; gap:13px; padding-bottom:16px; position:relative; }
.fstep:last-child{ padding-bottom:0; }
.fstep::before{ content:""; position:absolute; left:12px; top:26px; bottom:0; width:2px; background:var(--line); }
.fstep:last-child::before{ display:none; }
.fstep .n{
  flex:0 0 26px; width:26px; height:26px; border-radius:50%; display:grid; place-items:center;
  background:var(--primary-soft); color:var(--primary-d); font-size:12px; font-weight:800; z-index:1;
}
.fstep .t{ font-size:14px; font-weight:700; }
.fstep .d{ font-size:12.5px; color:var(--ink-3); }

/* 亮点 */
.feats{ display:grid; grid-template-columns:repeat(auto-fit,minmax(292px,1fr)); gap:16px; }
.feat{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-md); padding:24px;
  box-shadow:var(--sh-1); position:relative; overflow:hidden;
}
.feat::before{ content:""; position:absolute; inset:0 0 auto 0; height:3px; background:linear-gradient(90deg,var(--primary),var(--sun)); }
.feat .badge{
  display:inline-block; font-size:11px; font-weight:800; letter-spacing:.08em; padding:3px 9px;
  border-radius:var(--r-xs); background:var(--mint-soft); color:#0E8C7E; margin-bottom:11px;
}
.feat h3{ font-size:16.5px; margin-bottom:9px; }
.feat p{ font-size:14px; color:var(--ink-2); }
.feat .before-after{ margin-top:15px; font-size:13px; display:grid; gap:8px; }
.feat .ba{ display:flex; gap:9px; align-items:flex-start; }
.feat .ba .k{ flex:0 0 auto; font-size:11px; font-weight:800; padding:2px 8px; border-radius:var(--r-xs); }
.feat .ba.before .k{ background:#F3ECE6; color:var(--ink-3); }
.feat .ba.after .k{ background:var(--mint-soft); color:#0E8C7E; }
.feat .ba .v{ color:var(--ink-2); }

/* 架构 / 数据模型 */
.schema{ display:grid; grid-template-columns:repeat(auto-fit,minmax(212px,1fr)); gap:13px; }
.ent{ background:#fff; border:1px solid var(--line); border-radius:var(--r-sm); overflow:hidden; box-shadow:var(--sh-1); }
.ent-h{ padding:10px 14px; font-size:13px; font-weight:800; background:var(--cream-2); border-bottom:1px solid var(--line); display:flex; align-items:center; gap:7px; }
.ent-b{ padding:11px 14px; }
.ent-b code{ display:block; font-family:var(--mono); font-size:11.5px; color:var(--ink-2); padding:2.5px 0; }
.ent-b code b{ color:var(--primary-d); font-weight:700; }

/* 路线图 */
.road{ display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:15px; }
.road-col{ background:#fff; border:1px solid var(--line); border-radius:var(--r-md); padding:20px; box-shadow:var(--sh-1); }
.road-col .ver{ font-family:var(--mono); font-size:12px; font-weight:700; color:var(--primary); letter-spacing:.06em; }
.road-col h3{ font-size:16px; margin:6px 0 4px; }
.road-col .when{ font-size:12px; color:var(--ink-3); margin-bottom:13px; }
.road-col li{ font-size:13.5px; color:var(--ink-2); padding:6px 0 6px 16px; position:relative; }
.road-col li::before{ content:"→"; position:absolute; left:0; color:var(--line-2); }

/* 脚注 */
.site-foot{
  max-width:1240px; margin:0 auto; padding:26px 22px 46px;
  font-size:12.5px; color:var(--ink-3); display:flex; gap:8px; flex-wrap:wrap; align-items:center;
}
.site-foot .dot{ opacity:.55; }

/* ==========================================================================
   二、原型演示
   ========================================================================== */
.proto-wrap{ max-width:1240px; margin:0 auto; padding:30px 22px 56px; display:grid; grid-template-columns:1fr 420px; gap:38px; align-items:start; }

.proto-side h2{ font-size:29px; margin-bottom:12px; letter-spacing:-.02em; }
.proto-side > p{ color:var(--ink-2); font-size:15px; margin-bottom:26px; }
.side-block{ background:#fff; border:1px solid var(--line); border-radius:var(--r-md); padding:20px; box-shadow:var(--sh-1); margin-bottom:14px; }
.side-block h4{ font-size:13px; color:var(--ink-3); letter-spacing:.1em; text-transform:uppercase; margin-bottom:13px; }
.side-block li{ font-size:14px; color:var(--ink-2); padding:6px 0; display:flex; gap:10px; align-items:flex-start; }
.side-block li .em{ flex:0 0 auto; }
.side-block li b{ color:var(--ink); }
.hint{ font-size:13px; color:var(--ink-3); display:flex; gap:8px; align-items:flex-start; }
kbd{
  font-family:var(--mono); font-size:11.5px; background:var(--cream-2); border:1px solid var(--line-2);
  border-bottom-width:2px; border-radius:5px; padding:1px 6px; color:var(--ink-2);
}

.proto-stage{ position:sticky; top:82px; display:flex; flex-direction:column; align-items:center; gap:16px; }

/* 手机外壳：随视口高度自适应，保证在 768px 高的笔记本屏上也能整屏看全 */
.phone{
  width:396px; border-radius:48px; padding:11px;
  height:min(812px, calc(100vh - 124px)); min-height:520px;
  height:min(812px, calc(100dvh - 124px)); min-height:min(520px, calc(100dvh - 124px));
  background:linear-gradient(160deg,#3A2F28,#1D1713);
  box-shadow:var(--sh-3), 0 0 0 1px rgba(255,255,255,.06) inset;
  position:relative; flex:0 0 auto;
}
.phone::after{ /* 侧键 */
  content:""; position:absolute; right:-3px; top:170px; width:3px; height:76px;
  background:linear-gradient(180deg,#4A3D34,#2A211B); border-radius:0 3px 3px 0;
}
.screen{
  width:100%; height:100%; border-radius:38px; overflow:hidden; background:var(--cream);
  display:flex; flex-direction:column; position:relative;
}
/* 灵动岛 */
.island{
  position:absolute; top:9px; left:50%; transform:translateX(-50%);
  width:104px; height:26px; border-radius:99px; background:#0B0908; z-index:30;
}
.statusbar{
  height:44px; flex:0 0 44px; display:flex; align-items:center; justify-content:space-between;
  padding:0 26px; font-size:12.5px; font-weight:700; color:var(--ink); position:relative; z-index:20;
}
.statusbar .right{ display:flex; gap:5px; align-items:center; font-size:11px; }

.app-head{
  flex:0 0 auto; padding:2px 18px 12px; display:flex; align-items:center; justify-content:space-between; gap:10px;
  background:var(--cream); position:relative; z-index:10;
}
.app-head h1{ font-size:21px; letter-spacing:-.02em; }
.app-head .sub{ font-size:11.5px; color:var(--ink-3); font-weight:600; }
.pet-switch{ display:flex; gap:6px; }
.pet-chip{
  width:38px; height:38px; border-radius:13px; display:grid; place-items:center; font-size:19px;
  background:#fff; border:2px solid transparent; box-shadow:var(--sh-1); transition:.2s; position:relative;
}
.pet-chip.active{ border-color:var(--primary); transform:scale(1.06); }
.pet-chip.add{ font-size:17px; color:var(--ink-3); border:1.5px dashed var(--line-2); box-shadow:none; }

.app-body{ flex:1 1 auto; overflow-y:auto; overscroll-behavior:contain; padding:0 18px 20px; }
.app-body::-webkit-scrollbar{ width:0; }

.tabbar{
  flex:0 0 auto; height:64px; display:grid; grid-template-columns:repeat(5,1fr);
  background:rgba(255,255,255,.9); backdrop-filter:blur(14px); border-top:1px solid var(--line);
  padding-bottom:6px;
}
.tab{
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:3px;
  font-size:10px; font-weight:700; color:var(--ink-3); transition:.2s; position:relative;
}
.tab .ti{ font-size:19px; line-height:1; filter:grayscale(1) opacity(.55); transition:.2s; }
.tab.active{ color:var(--primary-d); }
.tab.active .ti{ filter:none; transform:translateY(-1px); }
.tab .dot-badge{
  position:absolute; top:6px; right:calc(50% - 18px); min-width:16px; height:16px; padding:0 4px;
  border-radius:99px; background:var(--rose); color:#fff; font-size:9.5px; display:grid; place-items:center;
  border:2px solid #fff;
}

/* --- 通用卡片 --- */
.card{ background:#fff; border-radius:var(--r-md); padding:16px; box-shadow:var(--sh-1); margin-bottom:12px; border:1px solid var(--line); }
.card.tight{ padding:13px; }
.card-h{ display:flex; align-items:center; justify-content:space-between; margin-bottom:13px; gap:10px; }
.card-h h3{ font-size:15px; }
.card-h .more{ font-size:12px; color:var(--ink-3); font-weight:600; }

/* --- 今日待办 --- */
.today-hero{
  border-radius:var(--r-lg); padding:18px; color:#fff; margin-bottom:12px; position:relative; overflow:hidden;
  background:linear-gradient(135deg,#FF9152,#FF6B35 62%,#F2552C);
  box-shadow:0 10px 26px rgba(242,85,44,.3);
}
.today-hero::after{ content:"🐾"; position:absolute; right:-10px; bottom:-24px; font-size:96px; opacity:.13; transform:rotate(-16deg); }
.today-hero .row{ display:flex; align-items:center; gap:12px; position:relative; }
.today-hero .ava{
  width:52px; height:52px; border-radius:17px; background:rgba(255,255,255,.24); display:grid; place-items:center;
  font-size:27px; backdrop-filter:blur(4px); border:1.5px solid rgba(255,255,255,.4);
}
.today-hero .who b{ font-size:16.5px; display:block; }
.today-hero .who span{ font-size:12px; opacity:.9; }
.today-hero .age{
  margin-left:auto; text-align:right; font-size:11.5px; opacity:.95; background:rgba(255,255,255,.18);
  padding:6px 11px; border-radius:var(--r-full); border:1px solid rgba(255,255,255,.24);
}
.today-hero .age b{ display:block; font-size:15px; }

.todo{
  display:flex; align-items:center; gap:12px; padding:11px 0; border-top:1px dashed var(--line);
}
.todo:first-of-type{ border-top:0; }
.todo .ico{ width:34px; height:34px; border-radius:11px; display:grid; place-items:center; font-size:16px; flex:0 0 auto; }
.todo .txt{ flex:1; min-width:0; }
.todo .txt b{ font-size:13.5px; display:block; }
.todo .txt span{ font-size:11.5px; color:var(--ink-3); }
.todo .due{ font-size:11.5px; font-weight:800; padding:3px 9px; border-radius:var(--r-full); white-space:nowrap; }
.due.now{ background:var(--rose-soft); color:#D63E5E; }
.due.soon{ background:var(--sun-soft); color:#B87A00; }
.due.ok{ background:var(--mint-soft); color:#0E8C7E; }

/* 快捷记录 */
.quick{ display:grid; grid-template-columns:repeat(4,1fr); gap:9px; }
.qbtn{
  background:var(--cream); border:1px solid var(--line); border-radius:var(--r-sm); padding:11px 4px;
  display:flex; flex-direction:column; align-items:center; gap:5px; font-size:10.5px; font-weight:700; color:var(--ink-2);
  transition:.2s;
}
.qbtn:hover{ background:#fff; border-color:var(--primary); color:var(--primary-d); transform:translateY(-2px); box-shadow:var(--sh-1); }
.qbtn .qi{ font-size:19px; }

/* --- 统计小卡 --- */
.mini-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:9px; }
.mini{ background:var(--cream); border-radius:var(--r-sm); padding:11px 12px; }
.mini span{ font-size:10.5px; color:var(--ink-3); display:block; }
.mini b{ font-size:16px; letter-spacing:-.02em; }
.mini b em{ font-style:normal; font-size:11px; color:var(--ink-3); font-weight:600; margin-left:1px; }

/* --- 图表 --- */
.chart-box{ position:relative; }
.chart-box svg{ width:100%; height:auto; display:block; overflow:visible; }
.chart-legend{ display:flex; gap:14px; font-size:11px; color:var(--ink-3); margin-top:8px; flex-wrap:wrap; }
.chart-legend i{ display:inline-block; width:9px; height:9px; border-radius:3px; margin-right:5px; vertical-align:-1px; }
.chart-tip{
  position:absolute; pointer-events:none; background:#2A211B; color:#fff; font-size:11px; font-weight:600;
  padding:5px 9px; border-radius:8px; transform:translate(-50%,-140%); white-space:nowrap; opacity:0; transition:opacity .12s;
  z-index:5;
}
.chart-tip.on{ opacity:1; }

/* --- 记录列表 --- */
.rec{ display:flex; gap:12px; padding:11px 0; border-top:1px solid var(--line); align-items:flex-start; }
.rec:first-child{ border-top:0; }
.rec .ico{ width:36px; height:36px; border-radius:12px; display:grid; place-items:center; font-size:17px; flex:0 0 auto; }
.rec .mid{ flex:1; min-width:0; }
.rec .mid b{ font-size:13.5px; display:block; }
.rec .mid span{ font-size:11.5px; color:var(--ink-3); }
.rec .val{ font-size:13px; font-weight:800; color:var(--ink); text-align:right; }
.rec .val small{ display:block; font-weight:600; font-size:10.5px; color:var(--ink-3); }

/* 分段控件 */
.seg{ display:flex; gap:4px; background:var(--cream); padding:4px; border-radius:var(--r-full); margin-bottom:13px; overflow-x:auto; }
.seg::-webkit-scrollbar{ height:0; }
.seg button{ padding:6px 14px; border-radius:var(--r-full); font-size:12.5px; font-weight:700; color:var(--ink-3); white-space:nowrap; transition:.2s; }
.seg button.active{ background:#fff; color:var(--primary-d); box-shadow:var(--sh-1); }

/* --- 时间线 --- */
.tl{ position:relative; padding-left:26px; }
.tl::before{ content:""; position:absolute; left:8px; top:8px; bottom:14px; width:2px; background:linear-gradient(180deg,var(--primary-soft),var(--line)); }
.tl-item{ position:relative; padding-bottom:20px; }
.tl-item::before{
  content:""; position:absolute; left:-22px; top:7px; width:11px; height:11px; border-radius:50%;
  background:#fff; border:3px solid var(--primary); box-shadow:0 0 0 3px var(--cream);
}
.tl-item.t-health::before{ border-color:var(--mint); }
.tl-item.t-milestone::before{ border-color:var(--sun); }
.tl-item.t-note::before{ border-color:var(--violet); }
.tl-date{ font-size:11px; color:var(--ink-3); font-weight:700; letter-spacing:.02em; display:flex; align-items:center; gap:8px; margin-bottom:6px; }
.tl-date .age-tag{ background:var(--cream-2); padding:1px 7px; border-radius:var(--r-full); font-weight:800; color:var(--ink-2); font-size:10px; }
.tl-card{ background:#fff; border:1px solid var(--line); border-radius:var(--r-sm); padding:12px 14px; box-shadow:var(--sh-1); }
.tl-card h4{ font-size:13.5px; margin-bottom:4px; }
.tl-card p{ font-size:12.5px; color:var(--ink-2); }
.tl-media{
  margin-top:10px; height:104px; border-radius:var(--r-xs); display:grid; place-items:center; font-size:38px;
  background:linear-gradient(135deg,#FFF0E4,#FFE0CC); color:#E08B57;
}
.tl-media.m2{ background:linear-gradient(135deg,#E4F7F3,#D2F0E9); color:#3FA796; }

/* --- 附近 --- */
.radar-wrap{ background:linear-gradient(160deg,#F2FBF9,#E8F7F4); border-radius:var(--r-md); padding:10px; margin-bottom:12px; border:1px solid #DDF1EC; }
.radar{ width:100%; height:auto; display:block; }
.radar text{ font-family:var(--font); }

.nearby-user{ display:flex; gap:11px; align-items:center; padding:12px 0; border-top:1px solid var(--line); }
.nearby-user:first-child{ border-top:0; }
.nu-ava{
  width:46px; height:46px; border-radius:15px; display:grid; place-items:center; font-size:22px; flex:0 0 auto; position:relative;
}
.nu-ava .pin{
  position:absolute; right:-3px; bottom:-3px; width:18px; height:18px; border-radius:50%; background:#fff;
  display:grid; place-items:center; font-size:9px; border:1.5px solid var(--line);
}
.nu-mid{ flex:1; min-width:0; }
.nu-mid b{ font-size:14px; display:flex; align-items:center; gap:6px; }
.nu-mid .meta{ font-size:11.5px; color:var(--ink-3); }
.nu-mid .tags{ display:flex; gap:5px; margin-top:5px; flex-wrap:wrap; }
.tag{
  font-size:10px; font-weight:700; padding:2px 8px; border-radius:var(--r-full); background:var(--cream-2); color:var(--ink-2);
}
.tag.mint{ background:var(--mint-soft); color:#0E8C7E; }
.tag.sun{ background:var(--sun-soft); color:#B87A00; }
.tag.rose{ background:var(--rose-soft); color:#D63E5E; }
.nu-right{ text-align:right; flex:0 0 auto; }
.score{ font-size:17px; font-weight:800; color:var(--primary-d); letter-spacing:-.02em; }
.score small{ font-size:10px; color:var(--ink-3); font-weight:600; display:block; }
.score-bar{ width:46px; height:4px; border-radius:9px; background:var(--line); margin-top:5px; overflow:hidden; }
.score-bar i{ display:block; height:100%; border-radius:9px; background:linear-gradient(90deg,var(--sun),var(--primary)); }

/* 滑块 */
.slider-row{ display:flex; align-items:center; gap:12px; margin-bottom:12px; }
.slider-row .lb{ font-size:12px; font-weight:700; color:var(--ink-2); white-space:nowrap; }
input[type=range]{
  -webkit-appearance:none; appearance:none; flex:1; height:6px; border-radius:99px;
  background:linear-gradient(90deg,var(--primary) var(--pct,50%), var(--line) var(--pct,50%)); outline:none;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none; width:20px; height:20px; border-radius:50%; background:#fff;
  border:3px solid var(--primary); box-shadow:0 2px 6px rgba(0,0,0,.16); cursor:pointer;
}
input[type=range]::-moz-range-thumb{
  width:20px; height:20px; border-radius:50%; background:#fff; border:3px solid var(--primary); cursor:pointer;
}

/* --- 社区 --- */
.topic-row{ display:flex; gap:7px; overflow-x:auto; padding-bottom:11px; margin-bottom:4px; }
.topic-row::-webkit-scrollbar{ height:0; }
.topic{
  white-space:nowrap; font-size:12px; font-weight:700; padding:6px 13px; border-radius:var(--r-full);
  background:#fff; border:1px solid var(--line); color:var(--ink-2); transition:.2s;
}
.topic.active{ background:var(--primary); color:#fff; border-color:var(--primary); box-shadow:0 4px 12px rgba(255,122,69,.3); }

.post{ background:#fff; border:1px solid var(--line); border-radius:var(--r-md); padding:14px; margin-bottom:11px; box-shadow:var(--sh-1); }
.post-h{ display:flex; gap:10px; align-items:center; margin-bottom:10px; }
.post-h .pa{ width:38px; height:38px; border-radius:13px; display:grid; place-items:center; font-size:18px; flex:0 0 auto; }
.post-h .pn{ flex:1; min-width:0; }
.post-h .pn b{ font-size:13.5px; display:block; }
.post-h .pn span{ font-size:11px; color:var(--ink-3); }
.post-h .loc{ font-size:10.5px; color:var(--ink-3); background:var(--cream); padding:3px 8px; border-radius:var(--r-full); display:flex; gap:3px; align-items:center; }
.post-body{ font-size:13.5px; color:var(--ink); margin-bottom:10px; white-space:pre-wrap; }
.post-media{ display:grid; grid-template-columns:repeat(3,1fr); gap:5px; margin-bottom:10px; }
.post-media div{ height:74px; border-radius:var(--r-xs); display:grid; place-items:center; font-size:29px; }
.post-foot{ display:flex; gap:18px; align-items:center; font-size:12.5px; color:var(--ink-3); font-weight:600; padding-top:10px; border-top:1px solid var(--line); }
.act{ display:flex; align-items:center; gap:5px; transition:.2s; }
.act:hover{ color:var(--primary-d); }
.act.on{ color:var(--rose); }
.act.on .ai{ transform:scale(1.14); }
.act .ai{ transition:.2s; font-size:14px; }

/* --- 空态 --- */
.empty{ text-align:center; padding:34px 12px; color:var(--ink-3); }
.empty .e{ font-size:40px; display:block; margin-bottom:10px; opacity:.7; }
.empty p{ font-size:13px; }

/* ==========================================================================
   三、弹层 / 表单 / Toast
   ========================================================================== */
.overlay{
  position:fixed; inset:0; z-index:200; background:rgba(42,33,27,.42);
  backdrop-filter:blur(3px); display:flex; align-items:center; justify-content:center; padding:20px;
  animation:fade .18s ease;
}
@keyframes fade{ from{opacity:0} to{opacity:1} }
@keyframes pop{ from{opacity:0; transform:translateY(14px) scale(.97)} to{opacity:1; transform:none} }
.sheet{
  background:#fff; border-radius:var(--r-lg); width:100%; max-width:420px; max-height:86vh; overflow-y:auto;
  box-shadow:var(--sh-3); animation:pop .24s cubic-bezier(.2,.9,.3,1);
}
.sheet-h{ padding:18px 20px 12px; display:flex; align-items:center; justify-content:space-between; border-bottom:1px solid var(--line); position:sticky; top:0; background:#fff; z-index:2; }
.sheet-h h3{ font-size:17px; }
.sheet-x{ width:30px; height:30px; border-radius:50%; background:var(--cream); display:grid; place-items:center; color:var(--ink-3); font-size:15px; }
.sheet-x:hover{ background:var(--cream-2); color:var(--ink); }
.sheet-b{ padding:18px 20px 22px; }

.field{ margin-bottom:15px; }
.field label{ display:block; font-size:12.5px; font-weight:700; color:var(--ink-2); margin-bottom:6px; }
.field input, .field select, .field textarea{
  width:100%; padding:11px 13px; border:1.5px solid var(--line-2); border-radius:var(--r-sm);
  font-family:inherit; font-size:14px; color:var(--ink); background:var(--cream); transition:.2s; outline:none;
}
.field input:focus, .field select:focus, .field textarea:focus{ border-color:var(--primary); background:#fff; box-shadow:0 0 0 3px var(--primary-soft); }
.field textarea{ resize:vertical; min-height:76px; }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:11px; }
.field .tip{ font-size:11.5px; color:var(--ink-3); margin-top:5px; }

.chip-select{ display:flex; gap:7px; flex-wrap:wrap; }
.chip-s{
  padding:8px 14px; border-radius:var(--r-full); border:1.5px solid var(--line-2); background:var(--cream);
  font-size:13px; font-weight:600; color:var(--ink-2); transition:.2s;
}
.chip-s:hover{ border-color:var(--primary); color:var(--primary-d); }
.chip-s.on{ background:var(--primary); border-color:var(--primary); color:#fff; }

.nl-box{
  background:linear-gradient(160deg,#FFF4EE,#FFEDE3); border:1.5px dashed #FFC9AE; border-radius:var(--r-md);
  padding:14px; margin-bottom:15px;
}
.nl-box .lb{ font-size:12px; font-weight:800; color:var(--primary-d); display:flex; align-items:center; gap:6px; margin-bottom:9px; }
.nl-box input{ background:#fff; }
.nl-demo{ display:flex; gap:6px; flex-wrap:wrap; margin-top:9px; }
.nl-demo button{
  font-size:11.5px; padding:4px 10px; border-radius:var(--r-full); background:#fff; border:1px solid #FFD9C4;
  color:var(--primary-d); font-weight:600;
}
.nl-demo button:hover{ background:var(--primary-soft); }
.parsed{ margin-top:10px; font-size:12px; color:var(--ink-2); background:#fff; border-radius:var(--r-xs); padding:9px 11px; border:1px solid #FFE0CE; }
.parsed b{ color:var(--primary-d); }

.sheet-foot{ display:flex; gap:10px; margin-top:6px; }
.sheet-foot .btn{ flex:1; justify-content:center; }

/* Toast */
#toast-root{ position:fixed; left:50%; bottom:34px; transform:translateX(-50%); z-index:300; display:flex; flex-direction:column; gap:8px; align-items:center; pointer-events:none; }
.toast{
  background:#2A211B; color:#fff; font-size:13.5px; font-weight:600; padding:11px 20px; border-radius:var(--r-full);
  box-shadow:var(--sh-2); animation:pop .22s ease; display:flex; align-items:center; gap:8px;
}

/* 打印/分享卡 */
.sharecard{
  background:linear-gradient(150deg,#FF9152,#FF6B35 55%,#F2552C); color:#fff; border-radius:var(--r-md);
  padding:20px; position:relative; overflow:hidden;
}
.sharecard::after{ content:"🐾"; position:absolute; right:-6px; bottom:-26px; font-size:100px; opacity:.14; transform:rotate(-14deg); }
.sharecard h3{ font-size:19px; margin-bottom:4px; }
.sharecard .sc-sub{ font-size:12px; opacity:.9; margin-bottom:16px; }
.sharecard .sc-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:11px; position:relative; }
.sharecard .sc-grid div{ background:rgba(255,255,255,.18); border-radius:var(--r-sm); padding:10px; border:1px solid rgba(255,255,255,.22); }
.sharecard .sc-grid span{ font-size:10.5px; opacity:.9; display:block; }
.sharecard .sc-grid b{ font-size:19px; letter-spacing:-.02em; }
.sharecard .sc-grid b em{ font-style:normal; font-size:11px; opacity:.85; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1080px){
  .proto-wrap{ grid-template-columns:1fr; }
  .proto-stage{ position:static; }
  .stats{ grid-template-columns:repeat(2,1fr); }
}
@media (max-width:640px){
  .page, .proto-wrap{ padding-left:15px; padding-right:15px; }
  .topbar-inner{ padding:9px 15px; }
  .brand-text i{ display:none; }
  .mode-btn{ padding:7px 13px; font-size:13px; }
  .stats{ grid-template-columns:1fr 1fr; gap:10px; }
  .stat b{ font-size:22px; }
  .hero{ padding:14px 0 34px; }
  .sec{ margin-bottom:44px; }
  /* 移动端：手机壳按视口宽高双约束，保证整机含 Tab 栏一屏可见 */
  .phone{
    width:100%; max-width:396px;
    height:min(812px, 178vw);
    height:min(812px, 178vw, calc(100dvh - 88px));
    min-height:min(460px, calc(100dvh - 88px));
  }
  .site-foot{ flex-direction:column; gap:3px; }
}