/* Calnote 官网样式：纸张质感 · 编辑式极简 · 响应式 */
:root{
  --paper:#FAF7F0; --paper-2:#F3EEE3; --card:#FFFDF8;
  --ink:#26241F; --ink-2:#6B675E; --line:#E7E1D3;
  --accent:#4A5A8C; --accent-soft:#EEF1F8;
  --terra:#B8734B; --green:#7A8B6F;
  --serif:Georgia,"Songti SC","Noto Serif SC","Hiragino Mincho ProN",serif;
  --sans:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Hiragino Sans","Segoe UI",sans-serif;
  --shadow:0 1px 2px rgba(38,36,31,.04),0 10px 30px rgba(38,36,31,.07);
  --r:18px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--paper);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;text-size-adjust:100%}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a,button,summary{-webkit-tap-highlight-color:transparent}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
header{position:sticky;top:0;z-index:50;background:rgba(250,247,240,.86);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;letter-spacing:.2px}
.brand img{width:30px;height:30px;border-radius:8px}
.nav-links{display:flex;gap:22px;margin-left:auto;font-size:14.5px;color:var(--ink-2)}
.nav-links a{transition:color .2s}
.nav-links a:hover{color:var(--ink)}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto}
.nav-links + .nav-right{margin-left:0}
.lang{display:flex;gap:2px;background:var(--paper-2);border:1px solid var(--line);border-radius:999px;padding:3px}
.lang button{border:0;background:transparent;font:inherit;font-size:12.5px;color:var(--ink-2);padding:4px 10px;border-radius:999px;cursor:pointer;transition:.2s}
.lang button.on{background:var(--card);color:var(--ink);box-shadow:0 1px 2px rgba(38,36,31,.08)}
.btn-store{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:#fff;border-radius:999px;padding:9px 18px;font-size:14px;font-weight:600;transition:transform .2s,opacity .2s}
.btn-store:hover{transform:translateY(-1px);opacity:.92}
.btn-store svg{width:16px;height:16px;fill:#fff}
.burger{display:none;border:0;background:none;cursor:pointer;padding:6px}
.burger span{display:block;width:20px;height:2px;background:var(--ink);margin:4px 0;border-radius:2px}
.mobile-menu{display:none}
@media (max-width:900px){
  .nav-links{display:none}
  .burger{display:block}
  .nav-right{margin-left:auto}
  .mobile-menu{display:none;flex-direction:column;gap:2px;padding:10px 24px 18px;border-top:1px solid var(--line);background:var(--paper)}
  .mobile-menu.open{display:flex}
  .mobile-menu a{padding:11px 4px;font-size:15.5px;color:var(--ink-2);border-bottom:1px dashed var(--line)}
}

/* ---------- hero ---------- */
.hero{padding:76px 0 64px;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:600}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px}
h1{font-family:var(--serif);font-size:clamp(34px,4.6vw,54px);line-height:1.18;font-weight:700;margin:18px 0 20px;letter-spacing:.01em}
.hero p.sub{font-size:17px;color:var(--ink-2);max-width:34em}
.hero-cta{display:flex;align-items:center;gap:16px;margin-top:30px;flex-wrap:wrap}
.btn-ghost{font-size:14.5px;font-weight:600;color:var(--accent);border-bottom:1.5px solid transparent;transition:border-color .2s}
.btn-ghost:hover{border-color:var(--accent)}
.hero-note{margin-top:14px;font-size:13px;color:var(--ink-2)}

/* ---------- phone mock ---------- */
.phone-zone{display:flex;justify-content:center}
.phone{width:min(330px,86vw);background:#fff;border:1px solid var(--line);border-radius:48px;padding:10px;box-shadow:var(--shadow)}
.screen{position:relative;border-radius:38px;overflow:hidden;background:var(--paper);aspect-ratio:9/18.6;display:flex;flex-direction:column}
.island{width:88px;height:26px;background:#141414;border-radius:14px;margin:12px auto 4px;flex:none}
.cal-head{display:flex;align-items:center;justify-content:space-between;padding:10px 20px 2px}
.cal-title{font-family:var(--serif);font-size:19px;font-weight:700}
.cal-nav{display:flex;gap:14px}
.cal-nav button{border:0;background:none;font-size:17px;color:var(--ink-2);cursor:pointer;padding:2px 6px;line-height:1}
.cal-nav button:hover{color:var(--ink)}
.weekdays{display:grid;grid-template-columns:repeat(7,1fr);padding:8px 14px 4px;font-size:10.5px;color:var(--ink-2);text-align:center}
.days{display:grid;grid-template-columns:repeat(7,1fr);gap:2px;padding:2px 12px}
.day{position:relative;border:0;background:none;font:inherit;font-size:13px;color:var(--ink);height:38px;border-radius:12px;cursor:pointer;transition:background .15s}
.day:hover{background:var(--paper-2)}
.day.empty{cursor:default}
.day.empty:hover{background:none}
.day .dot{position:absolute;left:50%;transform:translateX(-50%);bottom:5px;width:4.5px;height:4.5px;border-radius:50%;background:var(--terra)}
.day.today{box-shadow:inset 0 0 0 1.5px var(--accent);color:var(--accent);font-weight:700}
.day.sel{background:var(--ink);color:#fff;font-weight:600}
.day.sel .dot{background:#fff}
.demo-hint{margin:auto auto 16px;font-size:11.5px;color:var(--ink-2);background:var(--card);border:1px solid var(--line);border-radius:999px;padding:5px 12px;animation:float 2.6s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
/* 日记 sheet */
.sheet{position:absolute;left:0;right:0;bottom:0;background:var(--card);border-radius:26px 26px 0 0;box-shadow:0 -8px 30px rgba(38,36,31,.12);padding:10px 20px 26px;transform:translateY(103%);transition:transform .42s cubic-bezier(.32,.72,.28,1)}
.sheet.open{transform:none}
.grabber{width:38px;height:4.5px;border-radius:3px;background:var(--line);margin:6px auto 12px}
.sheet-date{font-family:var(--serif);font-size:16.5px;font-weight:700;margin-bottom:8px}
.sheet-text{font-size:13.5px;color:var(--ink-2);min-height:96px;white-space:pre-wrap}
.sheet-text.typing::after{content:"▍";color:var(--accent);animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.saved-pill{position:absolute;right:18px;top:14px;font-size:11px;font-weight:600;color:var(--green);background:#F0F4EE;border:1px solid #DCE6D8;border-radius:999px;padding:3px 10px;opacity:0;transition:opacity .4s}
.saved-pill.show{opacity:1}

/* ---------- sections ---------- */
section{padding:72px 0}
.sec-head{max-width:640px;margin:0 auto 46px;text-align:center}
h2{font-family:var(--serif);font-size:clamp(26px,3.2vw,36px);line-height:1.25;font-weight:700;margin:14px 0 12px}
.sec-head p{color:var(--ink-2);font-size:15.5px}
.alt{background:var(--paper-2)}

/* features */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px 22px;transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.card .ico{width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.card .ico svg{width:20px;height:20px}
.ico.i1{background:var(--accent-soft);color:var(--accent)}
.ico.i2{background:#F6EEE7;color:var(--terra)}
.ico.i3{background:#F0F4EE;color:var(--green)}
.ico.i4{background:#F1EFF6;color:#6B5E8C}
.card h3{font-size:15.5px;font-weight:700;margin-bottom:6px}
.card p{font-size:13.5px;color:var(--ink-2)}
@media (max-width:960px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:480px){.grid{grid-template-columns:1fr}}

/* membership */
.mem{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.mem-list{list-style:none;margin-top:22px;display:grid;gap:12px}
.mem-list li{display:flex;gap:10px;font-size:14.5px;align-items:flex-start}
.mem-list svg{width:17px;height:17px;flex:none;margin-top:3px;color:var(--green)}
.price-card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}
.price-card h3{font-family:var(--serif);font-size:19px;margin-bottom:18px}
.price-row{display:flex;align-items:baseline;justify-content:space-between;padding:13px 0;border-bottom:1px dashed var(--line);font-size:14.5px}
.price-row:last-of-type{border-bottom:0}
.price-row .p{font-weight:700;font-size:16px}
.price-row .tag{font-size:11px;color:var(--terra);background:#F6EEE7;border-radius:999px;padding:2px 9px;margin-left:8px;font-weight:600}
.price-note{margin-top:14px;font-size:12px;color:var(--ink-2)}
@media (max-width:900px){.mem{grid-template-columns:1fr}}

/* privacy strip */
.priv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:34px}
.priv-item{text-align:center;padding:26px 18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r)}
.priv-item svg{width:22px;height:22px;margin:0 auto 12px;color:var(--accent)}
.priv-item h3{font-size:14.5px;margin-bottom:6px}
.priv-item p{font-size:12.5px;color:var(--ink-2)}
@media (max-width:900px){.priv-grid{grid-template-columns:repeat(2,1fr)}}
.center{text-align:center}

/* faq */
.faq{max-width:760px;margin:0 auto}
details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:0 22px;margin-bottom:12px}
summary{cursor:pointer;padding:17px 0;font-weight:600;font-size:15px;list-style:none;display:flex;justify-content:space-between;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-size:20px;color:var(--ink-2);transition:transform .25s}
details[open] summary::after{transform:rotate(45deg)}
details p{padding:0 0 18px;font-size:14px;color:var(--ink-2)}

/* changelog */
.timeline{max-width:760px;margin:0 auto;position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--line);border-radius:2px}
.tl-item{position:relative;margin-bottom:40px}
.tl-item::before{content:"";position:absolute;left:-26px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--card);border:3px solid var(--accent)}
.tl-item.soon::before{border-color:var(--terra)}
.tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.tl-ver{font-family:var(--serif);font-size:21px;font-weight:700}
.tl-date{font-size:13px;color:var(--ink-2)}
.chip{font-size:11px;font-weight:600;border-radius:999px;padding:3px 10px}
.chip.soon{background:#F6EEE7;color:var(--terra)}
.tl-item ul{list-style:none;display:grid;gap:8px}
.tl-item li{font-size:14.5px;color:var(--ink-2);padding-left:18px;position:relative}
.tl-item li::before{content:"";position:absolute;left:2px;top:9px;width:6px;height:6px;border-radius:50%;background:var(--line)}
.tl-item li strong{color:var(--ink)}

/* privacy page */
.article{max-width:760px;margin:0 auto}
.article .meta{font-size:13px;color:var(--ink-2);margin:6px 0 30px}
.article h2{font-size:22px;margin:38px 0 12px}
.article h3{font-size:16px;margin:22px 0 8px}
.article p,.article li{font-size:14.5px;color:var(--ink-2);margin-bottom:10px}
.article ul,.article ol{padding-left:22px}
.article strong{color:var(--ink)}
.contact-card{margin-top:44px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;text-align:center}
.contact-card a{color:var(--accent);font-weight:600}

/* footer */
footer{border-top:1px solid var(--line);padding:44px 0 34px;margin-top:20px}
.ft{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap}
.ft-brand{max-width:300px}
.ft-brand .brand{margin-bottom:10px}
.ft-brand p{font-size:13px;color:var(--ink-2)}
.ft-col h4{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);margin-bottom:12px}
.ft-col a{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px}
.ft-col a:hover{color:var(--ink)}
.ft-bottom{margin-top:34px;padding-top:18px;border-top:1px dashed var(--line);font-size:12.5px;color:var(--ink-2);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

@media (max-width:900px){
  .hero{grid-template-columns:1fr;padding:52px 0 40px;gap:40px}
  section{padding:56px 0}
}

/* ============ H5 / 移动端排版优化 ============ */
/* 收紧页边距，给正文更宽可读宽度；顶部隐藏商店按钮（移动菜单内保留），仅留 品牌+语言+汉堡 */
@media (max-width:640px){
  .wrap{padding:0 20px}
  .nav-right > .btn-store{display:none}
  .mobile-menu .btn-store{
    display:inline-flex;justify-content:center;align-items:center;
    width:calc(100% - 8px);margin:4px 4px 12px;padding:12px 18px;font-size:15px;
  }
  .lang{padding:2px}
  .lang button{padding:4px 8px;font-size:12px}
}
@media (max-width:400px){
  .wrap{padding:0 16px}
}
/* 手机端：hero 标题贴合屏幕、CTA 纵向铺满便于点按、卡片与区块间距收紧 */
@media (max-width:560px){
  h1{font-size:clamp(28px,7.4vw,38px);line-height:1.22;margin:14px 0 16px}
  .hero{padding:40px 0 36px;gap:30px}
  .hero p.sub{font-size:15px}
  .hero-cta{flex-direction:column;align-items:stretch;gap:12px;margin-top:24px}
  .hero-cta .btn-store{justify-content:center}
  section{padding:48px 0}
  .sec-head{margin:0 auto 34px}
  h2{font-size:clamp(23px,5.4vw,30px)}
  .card{padding:18px 16px}
  .card p{font-size:13px}
  .mem{gap:28px}
  .price-card{padding:22px}
  details{padding:0 16px}
  summary{font-size:14.5px;padding:15px 0}
  .priv-grid{gap:14px}
  footer{padding:36px 0 28px}
  .ft-bottom{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}