:root{
  --c-primary:#777b65;
  --c-accent:#857a90;
  --c-cta:#896699;
  --c-bg:#fbfbf8;
  --c-surface:#ffffff;
  --c-text:#292c1b;
  --c-muted:#747a5c;
  --c-border:#e4e6db;
  --radius:2px;
  --font-sans:system-ui,-apple-system,'PingFang SC','Microsoft YaHei','Segoe UI',sans-serif;
  --wrap:1040px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:15px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select{font-family:inherit;color:inherit;font-size:15px}
svg{display:block}
ul,ol{list-style:none}
:focus-visible{outline:1px solid var(--c-cta);outline-offset:3px}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}

/* ---------- 排版 ---------- */
.display{
  font-size:clamp(2.6rem,7vw,4.6rem);
  font-weight:300;
  line-height:1.1;
  letter-spacing:-.02em;
}
.h2{
  font-size:clamp(1.5rem,2.6vw,2rem);
  font-weight:400;
  line-height:1.35;
  letter-spacing:-.01em;
}
.label{
  font-size:11px;
  font-weight:500;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--c-muted);
}
.muted{color:var(--c-muted)}
.lede{
  font-size:16px;
  color:var(--c-muted);
  max-width:44em;
  font-weight:300;
}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:20;
  background:var(--c-bg);
  border-bottom:1px solid var(--c-border);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;
}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{color:var(--c-primary);display:flex}
.brand-text{font-size:15px;font-weight:500;letter-spacing:.06em}
.nav{display:flex;gap:28px}
.nav a{
  position:relative;
  font-size:14px;
  color:var(--c-muted);
  padding:4px 0;
  transition:color .25s ease;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;
  height:1px;background:var(--c-text);
  transform:scaleX(0);transform-origin:left;
  transition:transform .35s cubic-bezier(.2,.7,.3,1);
}
.nav a:hover{color:var(--c-text)}
.nav a.is-active{color:var(--c-text)}
.nav a.is-active::after,.nav a:hover::after{transform:scaleX(1)}

/* ---------- 页面切换 ---------- */
.main{padding:0 32px 120px;max-width:var(--wrap)}
.page{padding-top:88px}
.page[hidden]{display:none}
.page{animation:pageIn .55s cubic-bezier(.2,.7,.3,1) both}
@keyframes pageIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

/* ---------- 首屏 ---------- */
.hero{padding:40px 0 96px;border-bottom:1px solid var(--c-border)}
.hero .label{margin-bottom:36px}
.hero .display{margin-bottom:36px}
.hero .lede{margin-bottom:48px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-block;
  padding:13px 30px;
  border:1px solid var(--c-border);
  border-radius:var(--radius);
  background:transparent;
  font-size:14px;
  letter-spacing:.08em;
  color:var(--c-text);
  transition:border-color .25s ease,background .25s ease,transform .25s ease,opacity .25s ease;
}
.btn:hover{border-color:var(--c-primary);transform:translateY(-1px)}
.btn:active{transform:none}
.btn-primary{
  background:var(--c-cta);
  border-color:var(--c-cta);
  color:var(--c-surface);
}
.btn-primary:hover{background:var(--c-cta);border-color:var(--c-cta);opacity:.86}
.btn-quiet{color:var(--c-muted);border-color:transparent;padding-left:12px;padding-right:12px}
.btn-quiet:hover{border-color:var(--c-border);color:var(--c-text)}

/* ---------- 数据条 ---------- */
.stats-strip{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-bottom:1px solid var(--c-border);
}
.stats-item{padding:56px 0 60px}
.stats-item + .stats-item{border-left:1px solid var(--c-border);padding-left:40px}
.stats-num{
  font-size:clamp(2.2rem,5vw,3.2rem);
  font-weight:200;line-height:1;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.stats-cap{margin-top:14px;font-size:12px;letter-spacing:.16em;color:var(--c-muted)}

.section{padding:96px 0;border-bottom:1px solid var(--c-border)}
.section .label{margin-bottom:20px}
.section .h2{margin-bottom:56px}
.section-head{padding-bottom:56px;border-bottom:1px solid var(--c-border);margin-bottom:56px}
.section-head .label{margin-bottom:16px}

.cols-3{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.feat{padding:0 32px;border-left:1px solid var(--c-border)}
.feat:first-child{padding-left:0;border-left:0}
.feat-idx{font-size:11px;letter-spacing:.2em;color:var(--c-accent);margin-bottom:20px}
.feat-title{font-size:17px;font-weight:500;margin-bottom:14px}
.feat-text{font-size:14px;color:var(--c-muted);font-weight:300}

.steps{border-top:1px solid var(--c-border)}
.steps li{
  display:flex;gap:32px;align-items:baseline;
  padding:26px 0;border-bottom:1px solid var(--c-border);
}
.step-k{font-size:12px;letter-spacing:.18em;color:var(--c-muted);min-width:72px}
.step-v{font-size:16px;font-weight:300}

/* ---------- 番茄钟 ---------- */
.timer-layout{display:grid;grid-template-columns:1fr 320px;gap:72px}
.timer-main{display:flex;flex-direction:column;align-items:center}
.mode-tabs{display:flex;gap:0;border:1px solid var(--c-border);border-radius:var(--radius);overflow:hidden}
.mode-tab{
  padding:10px 34px;font-size:13px;letter-spacing:.14em;color:var(--c-muted);
  transition:background .25s ease,color .25s ease;
}
.mode-tab + .mode-tab{border-left:1px solid var(--c-border)}
.mode-tab.is-active{background:var(--c-primary);color:var(--c-surface)}

.ring-wrap{position:relative;width:min(420px,86vw);margin:56px 0 44px}
.ring{width:100%;height:auto;transform:rotate(-90deg)}
.ring-track{fill:none;stroke:var(--c-border);stroke-width:1}
.ring-bar{
  fill:none;stroke:var(--c-primary);stroke-width:1.5;
  stroke-dasharray:1000;stroke-dashoffset:1000;
  stroke-linecap:butt;
  transition:stroke-dashoffset .95s linear,stroke .4s ease;
}
.mode-rest .ring-bar{stroke:var(--c-accent)}
.ring-center{
  position:absolute;inset:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
}
.tomato{color:var(--c-primary);opacity:.55;margin-bottom:10px}
.mode-rest .tomato{color:var(--c-accent)}
.ring-mode{font-size:11px;letter-spacing:.24em;color:var(--c-muted)}
.ring-time{
  font-size:clamp(2.6rem,8vw,3.6rem);font-weight:200;line-height:1;
  letter-spacing:.02em;font-variant-numeric:tabular-nums;
}
.ring-task{margin-top:8px;font-size:12px;color:var(--c-muted);letter-spacing:.06em;max-width:60%;text-align:center}

.is-running .tomato{animation:breathe 4s ease-in-out infinite}
@keyframes breathe{0%,100%{transform:scale(1);opacity:.55}50%{transform:scale(1.09);opacity:.85}}

.timer-controls{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-bottom:28px}
.notice{
  min-height:24px;font-size:13px;letter-spacing:.06em;color:var(--c-cta);
  opacity:0;transform:translateY(6px);transition:opacity .4s ease,transform .4s ease;
}
.notice.show{opacity:1;transform:none}
.notice.done{color:var(--c-primary)}

.ring-wrap.celebrate .ring-bar{animation:ringPop 1.1s cubic-bezier(.2,.7,.3,1)}
@keyframes ringPop{
  0%{stroke-width:1.5}
  35%{stroke-width:5}
  100%{stroke-width:1.5}
}

.timer-side{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--c-border)}
.panel{padding:32px 0;border-bottom:1px solid var(--c-border)}
.panel-title{font-size:13px;font-weight:500;letter-spacing:.1em;margin-bottom:22px}
.panel-note{font-size:12px;color:var(--c-muted);font-weight:300;line-height:1.9;margin-top:16px}
.field{margin-bottom:22px}
.field:last-child{margin-bottom:0}
.field label{display:block;font-size:12px;letter-spacing:.12em;color:var(--c-muted);margin-bottom:10px}
.field input,.field select,.row input{
  width:100%;padding:11px 14px;
  border:1px solid var(--c-border);border-radius:var(--radius);
  background:var(--c-surface);
  transition:border-color .25s ease;
}
.field input:focus,.field select:focus,.row input:focus{outline:none;border-color:var(--c-primary)}
.row{display:flex;gap:10px;align-items:stretch}
.row input{flex:1;min-width:0}
.row .btn{flex:0 0 auto}

.dots{display:flex;flex-wrap:wrap;gap:8px}
.dot{width:9px;height:9px;border:1px solid var(--c-primary);border-radius:50%}
.dot.on{background:var(--c-primary)}

/* ---------- 任务卡片 ---------- */
.task-form{
  padding:32px;border:1px solid var(--c-border);border-radius:var(--radius);
  background:var(--c-surface);margin-bottom:56px;
}
.task-form input[type=text]{
  width:100%;border:0;border-bottom:1px solid var(--c-border);
  background:transparent;padding:12px 2px;font-size:17px;font-weight:300;
  transition:border-color .25s ease;
}
.task-form input[type=text]:focus{outline:none;border-color:var(--c-primary)}
.task-form input::placeholder{color:var(--c-muted);opacity:.7}
.task-form-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-top:24px;flex-wrap:wrap}
.inline-field{display:flex;align-items:center;gap:12px;font-size:12px;letter-spacing:.12em;color:var(--c-muted)}
.inline-field input{width:72px;padding:9px 12px;border:1px solid var(--c-border);border-radius:var(--radius);background:var(--c-surface)}
.inline-field input:focus{outline:none;border-color:var(--c-primary)}

.filters{display:flex;gap:24px;margin-bottom:8px;padding-bottom:20px}
.filter{font-size:13px;color:var(--c-muted);letter-spacing:.08em;padding-bottom:3px;border-bottom:1px solid transparent;transition:color .25s ease,border-color .25s ease}
.filter.is-active{color:var(--c-text);border-color:var(--c-text)}

.task-list{border-top:1px solid var(--c-border)}
.task-card{
  display:grid;grid-template-columns:auto 1fr auto;gap:24px;align-items:center;
  padding:26px 0;border-bottom:1px solid var(--c-border);
  animation:pageIn .45s cubic-bezier(.2,.7,.3,1) both;
}
.tick{
  width:20px;height:20px;border:1px solid var(--c-border);border-radius:var(--radius);
  display:flex;align-items:center;justify-content:center;
  transition:border-color .25s ease,background .25s ease;
}
.tick svg{opacity:0;transition:opacity .25s ease;color:var(--c-surface)}
.tick:hover{border-color:var(--c-primary)}
.task-card.is-done .tick{background:var(--c-primary);border-color:var(--c-primary)}
.task-card.is-done .tick svg{opacity:1}
.task-body{min-width:0}
.task-title{font-size:16px;font-weight:400}
.task-card.is-done .task-title{color:var(--c-muted);text-decoration:line-through;text-decoration-thickness:1px}
.task-meta{margin-top:8px;font-size:12px;color:var(--c-muted);letter-spacing:.06em}
.task-dots{display:flex;gap:6px;margin-top:12px}
.tdot{width:22px;height:2px;background:var(--c-border)}
.tdot.on{background:var(--c-primary)}
.task-del{font-size:12px;color:var(--c-muted);letter-spacing:.1em;opacity:0;transition:opacity .25s ease}
.task-card:hover .task-del{opacity:1}
.task-del:hover{color:var(--c-cta)}
.empty{padding:64px 0;color:var(--c-muted);font-size:14px;font-weight:300}

/* ---------- 成长记录 ---------- */
.growth-layout{display:grid;grid-template-columns:340px 1fr;gap:72px}
.pet-panel{border-right:1px solid var(--c-border);padding-right:56px}
.pet-stage{
  border:1px solid var(--c-border);border-radius:var(--radius);
  background:var(--c-surface);
  aspect-ratio:1/1;display:flex;align-items:center;justify-content:center;
  margin-bottom:32px;
}
.pet-stage svg{width:60%;height:auto;color:var(--c-primary)}
.pet-name{font-size:20px;font-weight:400;letter-spacing:.04em}
.pet-meta{margin-top:8px;font-size:12px;letter-spacing:.14em;color:var(--c-muted);margin-bottom:48px}
.pet-meta span{font-variant-numeric:tabular-nums}

.goal{margin-bottom:40px}
.goal-head{display:flex;justify-content:space-between;font-size:12px;letter-spacing:.12em;color:var(--c-muted);margin-bottom:12px}
.bar{height:2px;background:var(--c-border)}
.bar i{display:block;height:2px;background:var(--c-cta);transition:width .6s cubic-bezier(.2,.7,.3,1)}

.mini-grid{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--c-border);padding-bottom:36px;margin-bottom:12px}
.mini-num{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:200;line-height:1;font-variant-numeric:tabular-nums}
.mini-cap{margin-top:12px;font-size:11px;letter-spacing:.14em;color:var(--c-muted)}

.chart{display:grid;grid-template-columns:repeat(7,1fr);gap:10px;align-items:end;height:170px}
.chart-col{display:flex;flex-direction:column;justify-content:flex-end;height:100%;gap:10px}
.chart-bar{background:var(--c-primary);opacity:.75;min-height:2px;transition:height .6s cubic-bezier(.2,.7,.3,1)}
.chart-bar.zero{background:var(--c-border);opacity:1}
.chart-cap{font-size:11px;color:var(--c-muted);letter-spacing:.06em;text-align:center}

/* ---------- 页脚 ---------- */
.site-footer{border-top:1px solid var(--c-border);padding:48px 0}
.footer-inner{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-size:12px;letter-spacing:.1em}

/* ---------- 响应式 ---------- */
@media (max-width:920px){
  .timer-layout,.growth-layout{grid-template-columns:1fr;gap:56px}
  .pet-panel{border-right:0;padding-right:0;border-bottom:1px solid var(--c-border);padding-bottom:48px}
  .cols-3{grid-template-columns:1fr}
  .feat{padding:28px 0;border-left:0;border-top:1px solid var(--c-border)}
  .feat:first-child{border-top:0;padding-top:0}
}
@media (max-width:680px){
  .wrap,.main{padding-left:22px;padding-right:22px}
  .header-inner{height:64px;gap:12px}
  .nav{gap:18px}
  .nav a{font-size:13px}
  .page{padding-top:56px}
  .hero{padding:20px 0 64px}
  .section{padding:64px 0}
  .stats-strip{grid-template-columns:1fr}
  .stats-item{padding:32px 0}
  .stats-item + .stats-item{border-left:0;border-top:1px solid var(--c-border);padding-left:0}
  .mini-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .steps li{flex-direction:column;gap:6px}
  .task-card{grid-template-columns:auto 1fr;gap:16px}
  .task-del{grid-column:2;opacity:1;justify-self:start}
  .chart{height:140px;gap:6px}
  .main{padding-bottom:80px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}