:root {
  --rice: #F4EDE0;
  --rice-2: #EBE1CF;
  --card: #FFFBF3;
  --ink: #2D2924;
  --ink-2: #6B6256;
  --ink-3: #A0957F;
  --sprout: #4F7232;
  --sprout-2: #6F9446;
  --sprout-soft: #E3EBD3;
  --persimmon: #D4622F;
  --line: #DCCFB8;
  --r-grandpa: #3E6A8A;
  --r-grandma: #B5536B;
  --r-dad: #4F7232;
  --r-mom: #C08A1E;
  --serif: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "Noto Serif CJK SC", serif;
  --sans: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --tab-h: 74px;
  --safe-b: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { font-size: 18px; }
body {
  margin: 0; min-height: 100dvh; color: var(--ink); background: var(--rice);
  font-family: var(--sans); line-height: 1.7; -webkit-font-smoothing: antialiased;
}
.paper {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(1200px 600px at 110% -10%, rgba(111,148,70,.16), transparent 60%),
    radial-gradient(900px 500px at -20% 110%, rgba(212,98,47,.10), transparent 60%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .35 0 0 0 0 .3 0 0 0 0 .22 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
[hidden] { display: none !important; }
button { font: inherit; color: inherit; cursor: pointer; }
textarea, input { font: inherit; color: inherit; }

.screen { max-width: 640px; margin: 0 auto; min-height: 100dvh; }

/* ---------- 登录 ---------- */
#login { padding: 48px 26px calc(32px + var(--safe-b)); display: flex; flex-direction: column; }
.cover { position: relative; animation: rise .7s ease both; }
.sprout { width: 92px; height: 92px; color: var(--sprout); position: absolute; right: 0; top: -6px; transform: rotate(6deg); animation: sway 5s ease-in-out infinite; transform-origin: 50% 100%; }
.eyebrow { margin: 0 0 6px; color: var(--ink-2); letter-spacing: .12em; font-size: .85rem; }
.cover h1 { font-family: var(--serif); font-weight: 900; font-size: 3.1rem; line-height: 1.12; margin: 0; letter-spacing: .04em; }
.lede { margin: 18px 0 0; color: var(--ink-2); font-size: 1.05rem; border-left: 3px solid var(--persimmon); padding-left: 12px; }
.pick, .code { margin-top: 44px; animation: rise .7s .15s ease both; }
.pick-title { font-family: var(--serif); font-size: 1.35rem; font-weight: 700; margin: 0 0 16px; }
.roles { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.role {
  --c: var(--sprout);
  display: flex; align-items: center; gap: 14px; padding: 18px 16px; border-radius: 18px;
  background: var(--card); border: 1.5px solid var(--line); text-align: left;
  box-shadow: 0 2px 0 var(--rice-2); transition: transform .15s, border-color .15s;
  animation: rise .5s ease both;
}
.role:active { transform: translateY(2px); box-shadow: none; }
.role:hover { border-color: var(--c); }
.role .seal { width: 52px; height: 52px; flex: none; }
.role b { font-family: var(--serif); font-size: 1.45rem; }
.seal {
  display: inline-grid; place-items: center; border-radius: 14px; color: #fff;
  font-family: var(--serif); font-weight: 900; font-size: 1.5rem; background: var(--c);
  box-shadow: inset 0 0 0 2px rgba(255,255,255,.35); transform: rotate(-4deg);
}
[data-role="grandpa"] { --c: var(--r-grandpa); }
[data-role="grandma"] { --c: var(--r-grandma); }
[data-role="dad"] { --c: var(--r-dad); }
[data-role="mom"] { --c: var(--r-mom); }

.link { background: none; border: 0; padding: 6px 0; color: var(--sprout); font-size: .95rem; text-decoration: underline; text-underline-offset: 4px; }
.back { margin-bottom: 8px; text-decoration: none; }
.dots { display: flex; gap: 14px; justify-content: center; margin: 10px 0 6px; }
.dots i { width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--ink-3); transition: background .15s, transform .15s; }
.dots i.on { background: var(--ink); border-color: var(--ink); transform: scale(1.05); }
.err { color: var(--persimmon); text-align: center; min-height: 1.7em; margin: 4px 0 10px; font-size: .95rem; }
.dots.shake { animation: shake .4s; }
.keypad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.key { height: 66px; border-radius: 16px; background: var(--card); border: 1.5px solid var(--line); font-size: 1.6rem; font-family: var(--serif); font-weight: 700; box-shadow: 0 2px 0 var(--rice-2); }
.key:active { transform: translateY(2px); box-shadow: none; background: var(--rice-2); }
.key.ghost { background: transparent; border-color: transparent; box-shadow: none; font-size: 1rem; font-family: var(--sans); color: var(--ink-2); }

/* ---------- 主界面 ---------- */
#main { padding-bottom: calc(var(--tab-h) + var(--safe-b) + 12px); }
.topbar {
  position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between;
  padding: calc(14px + env(safe-area-inset-top, 0px)) 22px 12px; background: rgba(244,237,224,.88);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid rgba(220,207,184,.6);
}
.hello { margin: 0; font-family: var(--serif); font-size: 1.45rem; font-weight: 800; }
.sub { margin: 0; color: var(--ink-2); font-size: .9rem; }
.avatar { width: 46px; height: 46px; }
main { padding: 18px 18px 0; }
.view { animation: fade .35s ease both; }

.btn { border-radius: 14px; border: 1.5px solid var(--line); background: var(--card); padding: 12px 20px; font-size: 1.05rem; font-weight: 600; min-height: 52px; }
.btn.primary { background: var(--sprout); border-color: var(--sprout); color: #fff; box-shadow: 0 3px 0 #3A5524; }
.btn.primary:active { transform: translateY(2px); box-shadow: 0 1px 0 #3A5524; }
.btn:disabled { opacity: .55; }
.row { display: flex; gap: 12px; margin-top: 12px; }
.row.end { justify-content: flex-end; }

/* 写记录 */
.composer { background: var(--card); border: 1.5px solid var(--line); border-radius: 22px; padding: 18px; box-shadow: 0 10px 30px -18px rgba(70,55,30,.35); position: relative; }
.composer::before { content: ""; position: absolute; left: 22px; right: 22px; top: -6px; height: 12px; background: repeating-linear-gradient(90deg, var(--rice-2) 0 10px, transparent 10px 18px); border-radius: 6px; opacity: .8; }
.composer-label { display: block; font-family: var(--serif); font-weight: 800; font-size: 1.3rem; margin-bottom: 6px; }
.composer textarea {
  width: 100%; border: 0; resize: vertical; background: transparent; font-size: 1.1rem; line-height: 1.9; outline: none;
  background-image: repeating-linear-gradient(transparent 0 calc(1.9em - 1px), var(--line) calc(1.9em - 1px) 1.9em);
  background-attachment: local; min-height: 7.6em;
}
.composer textarea::placeholder { color: var(--ink-3); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 4px; }
.chip { border: 1.5px solid var(--line); background: transparent; border-radius: 999px; padding: 6px 14px; font-size: .95rem; color: var(--ink-2); }
.chip.on { background: var(--sprout-soft); border-color: var(--sprout-2); color: var(--sprout); font-weight: 700; }
.composer-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
.composer-foot .btn { margin-left: auto; padding-inline: 28px; }
.vis { display: flex; align-items: center; gap: 8px; color: var(--ink-2); font-size: .95rem; }
.vis input { width: 22px; height: 22px; accent-color: var(--persimmon); }

/* 时间线 */
.feed { margin-top: 26px; }
.day { font-family: var(--serif); font-weight: 800; font-size: 1.05rem; color: var(--ink-2); margin: 22px 0 10px; display: flex; align-items: center; gap: 10px; }
.day::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.note { display: grid; grid-template-columns: 44px 1fr; gap: 12px; margin-bottom: 14px; animation: rise .4s ease both; }
.note .seal { width: 44px; height: 44px; font-size: 1.15rem; border-radius: 12px; }
.note-card { background: var(--card); border: 1px solid var(--line); border-radius: 4px 18px 18px 18px; padding: 12px 15px; }
.note-meta { display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; font-size: .85rem; color: var(--ink-3); }
.note-meta b { color: var(--c); font-size: .95rem; }
.note-text { margin: 4px 0 0; white-space: pre-wrap; word-break: break-word; font-size: 1.05rem; }
.tag { font-size: .8rem; padding: 0 8px; border-radius: 999px; background: var(--rice-2); color: var(--ink-2); }
.tag.priv { background: #F7DDD0; color: var(--persimmon); }
.note-acts { display: flex; gap: 18px; margin-top: 6px; }
.note-acts .link { font-size: .9rem; padding: 2px 0; }
.note-acts .link.del { color: var(--ink-3); }
.empty { text-align: center; color: var(--ink-3); padding: 30px 10px; font-family: var(--serif); }

/* 问问 */
.ask-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.ask-note { margin: 0; font-size: .88rem; color: var(--ink-2); }
.ask-head .link { flex: none; }
.thread { margin-top: 14px; display: flex; flex-direction: column; gap: 14px; padding-bottom: 8px; }
.msg { max-width: 92%; padding: 12px 16px; border-radius: 20px; font-size: 1.07rem; animation: rise .3s ease both; word-break: break-word; }
.msg.user { align-self: flex-end; background: var(--sprout); color: #fff; border-bottom-right-radius: 6px; white-space: pre-wrap; }
.msg.assistant { align-self: flex-start; background: var(--card); border: 1px solid var(--line); border-bottom-left-radius: 6px; position: relative; padding-top: 30px; }
.msg.assistant::before { content: "成长助手"; position: absolute; top: 9px; left: 16px; font-size: .78rem; letter-spacing: .1em; color: var(--sprout); font-weight: 700; }
.msg.error { border-color: var(--persimmon); color: var(--persimmon); }
.msg p { margin: 0 0 .6em; } .msg p:last-child { margin-bottom: 0; }
.msg ul, .msg ol { margin: .2em 0 .6em; padding-left: 1.3em; }
.msg li { margin: .25em 0; }
.msg h3, .msg h4 { font-family: var(--serif); margin: .6em 0 .3em; font-size: 1.1rem; }
.typing::after { content: "▍"; animation: blink 1s steps(2) infinite; color: var(--sprout); }
.suggest { display: flex; flex-direction: column; gap: 10px; margin: 6px 0 14px; }
.suggest p { margin: 8px 0 2px; font-family: var(--serif); font-weight: 800; font-size: 1.15rem; }
.suggest button { text-align: left; background: var(--card); border: 1.5px dashed var(--line); border-radius: 16px; padding: 12px 16px; font-size: 1rem; color: var(--ink); }
.suggest button:active { background: var(--rice-2); }
.asker {
  position: sticky; bottom: calc(var(--tab-h) + var(--safe-b) + 8px); display: flex; gap: 10px; align-items: flex-end;
  background: var(--card); border: 1.5px solid var(--line); border-radius: 22px; padding: 8px 8px 8px 16px; box-shadow: 0 10px 30px -14px rgba(70,55,30,.45);
}
.asker textarea { flex: 1; border: 0; outline: none; resize: none; background: transparent; font-size: 1.1rem; padding: 10px 0; max-height: 40vh; }
.send { width: 58px; height: 52px; padding: 0; border-radius: 16px; font-family: var(--serif); font-size: 1.3rem; }

/* 档案 */
.seg { display: inline-flex; background: var(--rice-2); border-radius: 14px; padding: 4px; margin-bottom: 14px; }
.seg button { border: 0; background: transparent; padding: 8px 16px; border-radius: 10px; font-size: .98rem; color: var(--ink-2); }
.seg button.on { background: var(--card); color: var(--ink); font-weight: 700; box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.doc { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 6px 20px 18px; font-size: 1.04rem; }
.doc h1 { font-family: var(--serif); font-size: 1.55rem; margin: 18px 0 6px; line-height: 1.3; }
.doc h2 { font-family: var(--serif); font-size: 1.22rem; margin: 26px 0 8px; padding-bottom: 6px; border-bottom: 1px dashed var(--line); color: var(--sprout); }
.doc h3 { font-family: var(--serif); font-size: 1.08rem; margin: 16px 0 6px; }
.doc blockquote { margin: 8px 0; padding: 8px 12px; background: var(--rice); border-left: 3px solid var(--persimmon); border-radius: 0 10px 10px 0; color: var(--ink-2); font-size: .95rem; }
.doc ul, .doc ol { padding-left: 1.3em; margin: .3em 0 .7em; }
.doc li { margin: .3em 0; }
.doc p { margin: .5em 0; }
.doc-edit { width: 100%; min-height: 65vh; border: 1.5px solid var(--line); border-radius: 16px; padding: 14px; background: var(--card); font-family: ui-monospace, Menlo, monospace; font-size: .9rem; line-height: 1.6; }
.install { margin: 26px 4px 10px; color: var(--ink-2); font-size: .95rem; }
.install-title { font-family: var(--serif); font-weight: 800; color: var(--ink); font-size: 1.1rem; margin: 0 0 4px; }
.install a { color: var(--sprout); font-weight: 700; }

/* 底部导航 */
.tabs {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10; display: flex; justify-content: center; gap: 4px;
  height: calc(var(--tab-h) + var(--safe-b)); padding: 8px 12px var(--safe-b);
  background: rgba(255,251,243,.94); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-top: 1px solid var(--line);
}
.tabs button { flex: 1; max-width: 200px; border: 0; background: transparent; display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: .9rem; color: var(--ink-3); border-radius: 14px; }
.tab-ic { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; font-family: var(--serif); font-weight: 900; font-size: 1.15rem; border: 1.5px solid currentColor; transition: all .2s; }
.tabs button.on { color: var(--sprout); font-weight: 700; }
.tabs button.on .tab-ic { background: var(--sprout); color: #fff; border-color: var(--sprout); transform: rotate(-6deg) scale(1.05); }

.toast { position: fixed; left: 50%; bottom: calc(var(--tab-h) + var(--safe-b) + 90px); transform: translateX(-50%); background: var(--ink); color: var(--rice); padding: 10px 20px; border-radius: 999px; font-size: 1rem; z-index: 30; animation: rise .25s ease both; max-width: 86vw; text-align: center; }

@keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes sway { 0%,100% { transform: rotate(4deg); } 50% { transform: rotate(-3deg); } }
@keyframes shake { 0%,100% { transform: none; } 25% { transform: translateX(-8px); } 75% { transform: translateX(8px); } }
@keyframes blink { to { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }
@media (min-width: 700px) { html { font-size: 19px; } .tabs { border-radius: 22px 22px 0 0; max-width: 640px; margin: 0 auto; } }