:root {
  --ivory: #fff9f4;
  --paper: #fffdfb;
  --pink-50: #fff2f5;
  --pink-100: #fbe2e9;
  --pink-200: #f7c9d6;
  --pink-400: #e982a1;
  --pink-500: #d95d82;
  --rose: #c76d8a;
  --lavender: #eee8f8;
  --peach: #fff0df;
  --mint: #eaf7ec;
  --cocoa: #574b50;
  --muted: #8e8287;
  --line: #f2d9df;
  --shadow: 0 10px 34px rgba(117, 76, 89, 0.08);
  --shadow-soft: 0 5px 18px rgba(117, 76, 89, 0.06);
  --radius: 22px;
  --radius-sm: 14px;
  --sidebar: 220px;
  color: var(--cocoa);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--ivory); }
body { margin: 0; min-height: 100vh; background: var(--ivory); color: var(--cocoa); }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid rgba(217, 93, 130, .2); outline-offset: 2px;
}
.svg-sprite { position: fixed; width: 0; height: 0; overflow: hidden; }
.icon { width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.app-shell { min-height: 100vh; }
.sidebar {
  position: fixed; inset: 0 auto 0 0; z-index: 20; width: var(--sidebar); padding: 30px 18px;
  background: rgba(255, 253, 251, .82); border-right: 1px solid var(--line); backdrop-filter: blur(16px);
  display: flex; flex-direction: column;
}
.brand-mark {
  width: 56px; height: 56px; margin: 0 0 42px 18px; border: 0; background: none; color: var(--pink-500);
  font-size: 62px; line-height: 42px; font-weight: 300; cursor: pointer;
}
.brand-mark.small { width: 42px; height: 42px; margin: 0; font-size: 46px; line-height: 34px; }
.desktop-nav { display: grid; gap: 10px; }
.nav-button {
  min-height: 54px; padding: 0 17px; border: 0; border-radius: 14px; background: transparent;
  display: flex; align-items: center; gap: 13px; color: var(--cocoa); cursor: pointer; transition: .2s ease;
}
.nav-button:hover { background: var(--pink-50); transform: translateX(2px); }
.nav-button.active { color: var(--pink-500); background: linear-gradient(100deg, #fde9ee, #fff5f6); font-weight: 650; }
.sidebar-art { position: relative; margin-top: auto; height: 145px; overflow: hidden; }
.cat { fill: none; stroke: #b9827d; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.cat-sitting { position: absolute; right: 2px; bottom: 0; width: 92px; opacity: .72; }
.dot { position: absolute; width: 7px; height: 7px; border-radius: 50%; background: var(--pink-200); opacity: .8; }
.dot-a { left: 22px; top: 35px; }.dot-b { left: 43px; top: 23px; }.dot-c { left: 50px; top: 48px; }

.main-content { min-height: 100vh; margin-left: var(--sidebar); padding: 34px clamp(28px, 4vw, 72px) 70px; }
.mobile-header, .mobile-nav { display: none; }
.topbar { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.page-title { margin: 0; font-size: clamp(30px, 3vw, 44px); line-height: 1.15; letter-spacing: -.03em; }
.page-subtitle { margin: 9px 0 0; color: var(--muted); font-size: 15px; }
.language-switch {
  display: flex; gap: 9px; align-items: center; padding: 9px 12px; border: 0; background: transparent; color: var(--muted); cursor: pointer;
}
.language-switch .active { color: var(--pink-500); font-weight: 700; border-bottom: 2px solid currentColor; padding-bottom: 5px; }

.card { background: rgba(255, 253, 251, .92); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-soft); }
.card-title { margin: 0; font-size: 18px; }
.muted { color: var(--muted); }
.button {
  min-height: 44px; border-radius: 12px; border: 1px solid var(--pink-400); background: white; color: var(--pink-500);
  padding: 0 20px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; cursor: pointer; font-weight: 650; transition: .2s ease;
}
.button:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(217, 93, 130, .14); }
.button.primary { color: white; border-color: transparent; background: linear-gradient(135deg, #e8799a, #d95d82); }
.button.ghost { border-color: transparent; background: transparent; }
.button.small { min-height: 36px; padding: 0 14px; font-size: 13px; }
.button.full { width: 100%; }
.button[disabled] { opacity: .55; cursor: wait; transform: none; }
.inline-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.hero { position: relative; padding: 24px 0 22px; }
.hero h1 { max-width: 760px; margin: 0; font-size: clamp(36px, 5.3vw, 68px); line-height: 1.06; letter-spacing: -.055em; }
.hero p { margin: 18px 0 0; color: var(--muted); font-size: 17px; }
.hero-art { position: absolute; right: 4%; top: 0; width: 180px; height: 140px; pointer-events: none; }
.hero-art .cat { position: absolute; right: 28px; bottom: 0; width: 70px; }
.hero-art .bubble { position: absolute; border-radius: 50%; background: rgba(247, 201, 214, .5); filter: blur(.2px); }
.bubble.one { width: 68px; height: 68px; right: 0; top: 16px; }.bubble.two { width: 45px; height: 45px; right: 74px; top: 48px; }
.polka { position: absolute; display: grid; grid-template-columns: repeat(3, 7px); gap: 13px; opacity: .68; }
.polka i { width: 7px; height: 7px; border-radius: 50%; background: var(--pink-200); }
.hero-art .polka { right: 115px; top: 5px; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 26px; }
.feature-card { position: relative; min-height: 250px; padding: 30px; overflow: hidden; display: flex; flex-direction: column; align-items: flex-start; }
.feature-card:nth-child(2) { background: linear-gradient(145deg, #fffdfb, #fcf9ff); }
.feature-card:nth-child(3) { background: linear-gradient(145deg, #fffdfb, #fffaf1); }
.feature-icon { width: 66px; height: 66px; border-radius: 20px; background: var(--pink-50); color: var(--pink-500); display: grid; place-items: center; margin-bottom: 21px; }
.feature-card:nth-child(2) .feature-icon { background: var(--lavender); color: #8f6db5; }
.feature-card:nth-child(3) .feature-icon { background: var(--peach); color: #cf8a48; }
.feature-icon .icon { width: 34px; height: 34px; stroke-width: 1.6; }
.feature-card h2 { margin: 0; font-size: 24px; }
.feature-card p { margin: 10px 0 22px; color: var(--muted); line-height: 1.65; flex: 1; }
.feature-card .mini-dots { position: absolute; right: 20px; bottom: 18px; width: 38px; height: 38px; opacity: .45; background-image: radial-gradient(var(--pink-400) 2px, transparent 2px); background-size: 12px 12px; }
.home-lower { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(260px, .7fr); gap: 22px; margin-top: 22px; }
.recent-card, .note-card { padding: 24px; }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.records { display: grid; }
.record-row { display: grid; grid-template-columns: minmax(180px, 1fr) 110px 140px 84px; gap: 12px; align-items: center; padding: 15px 0; border-top: 1px solid #f4e4e8; font-size: 14px; }
.pill { display: inline-flex; align-items: center; width: fit-content; padding: 6px 10px; border-radius: 999px; background: var(--pink-50); color: var(--pink-500); font-size: 12px; }
.pill.lavender { background: var(--lavender); color: #8062a3; }.pill.mint { background: var(--mint); color: #4c9a5a; }.pill.peach { background: var(--peach); color: #ba762e; }
.note-card { position: relative; overflow: hidden; background: linear-gradient(145deg, #fff8fb, #fbf7ff); }
.note-card blockquote { margin: 28px 0 18px; font-size: 17px; line-height: 1.8; }
.note-cat { width: 90px; float: right; margin-top: 6px; }

.tool-card { padding: 20px; margin-bottom: 20px; }
.segmented { display: flex; flex-wrap: wrap; gap: 4px; padding: 4px; border-radius: 14px; background: #fbf5f6; width: fit-content; }
.segment { min-height: 40px; border: 0; padding: 0 18px; border-radius: 10px; background: transparent; color: var(--muted); cursor: pointer; }
.segment.active { color: var(--pink-500); background: white; box-shadow: var(--shadow-soft); font-weight: 650; }
.source-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; margin-top: 15px; }
.upload-box { min-height: 120px; border: 1px dashed var(--pink-400); border-radius: 14px; background: var(--pink-50); display: grid; place-items: center; align-content: center; gap: 7px; padding: 18px; color: var(--pink-500); cursor: pointer; text-align: center; }
.upload-box .icon { width: 28px; height: 28px; }.upload-box.compact { flex: 1; min-width: 360px; min-height: 96px; }
.empty-result { min-height: 250px; display: grid; place-items: center; align-content: center; gap: 14px; padding: 40px; color: var(--muted); text-align: center; }
.empty-result .feature-icon { margin: 0; }.empty-result p { max-width: 520px; line-height: 1.7; }
.field, .textarea, .select {
  width: 100%; border: 1px solid #eadce0; background: rgba(255,255,255,.84); color: var(--cocoa); border-radius: 12px; padding: 12px 14px;
}
.field { min-height: 46px; }.textarea { min-height: 120px; resize: vertical; line-height: 1.6; }.select { min-height: 46px; appearance: auto; }
.field-label { display: grid; gap: 8px; font-size: 13px; font-weight: 650; }
.input-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }

.analysis-intro { position: relative; padding: 22px; margin-bottom: 18px; display: flex; gap: 18px; align-items: center; overflow: hidden; }
.thumb { width: 88px; height: 88px; border-radius: 18px; background: linear-gradient(150deg, var(--pink-100), var(--lavender)); display: grid; place-items: center; flex: 0 0 auto; }
.thumb .icon { width: 38px; height: 38px; color: var(--pink-500); }
.analysis-intro h2 { margin: 0 0 8px; font-size: 23px; }.analysis-intro p { margin: 0; color: var(--muted); }
.cat-magnifier { margin-left: auto; width: 90px; flex: 0 0 auto; }
.analysis-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 18px; }
.stack { display: grid; gap: 18px; }
.result-card { padding: 23px; }
.steps { display: grid; gap: 13px; margin-top: 18px; }
.step { display: grid; grid-template-columns: 28px 92px 1fr; align-items: center; gap: 11px; }
.step-number { width: 27px; height: 27px; border-radius: 50%; display: grid; place-items: center; background: var(--pink-100); color: var(--pink-500); font-size: 12px; }
.step strong { font-size: 14px; }.step span:last-child { color: var(--muted); font-size: 13px; }
.insight-list { display: grid; gap: 12px; margin: 16px 0 0; padding: 0; list-style: none; }
.insight-list li { padding: 13px 0; border-top: 1px dashed var(--line); line-height: 1.55; }
.tag-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 16px; }
.tag { padding: 8px 13px; border-radius: 999px; background: var(--lavender); color: #8062a3; font-size: 13px; }
.chart-box { margin-top: 20px; height: 170px; }
.line-chart { width: 100%; height: 100%; overflow: visible; }
.line-chart .grid { stroke: #eadde1; stroke-width: 1; stroke-dasharray: 4 5; }.line-chart .area { fill: url(#pinkGradient); }.line-chart .curve { fill: none; stroke: var(--pink-500); stroke-width: 3; stroke-linecap: round; }.line-chart .point { fill: var(--paper); stroke: var(--pink-500); stroke-width: 3; }

.creator-layout { display: grid; grid-template-columns: minmax(300px, .75fr) minmax(460px, 1.45fr); gap: 20px; }
.form-card { padding: 24px; }.form-stack { display: grid; gap: 15px; }
.platform-options { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.choice { min-height: 46px; border: 1px solid #eadce0; border-radius: 12px; background: white; cursor: pointer; }
.choice.active { border-color: var(--pink-400); background: var(--pink-50); color: var(--pink-500); font-weight: 650; }
.toggle-row { display: flex; align-items: center; justify-content: space-between; padding: 13px; background: var(--pink-50); border-radius: 12px; }
.toggle { width: 45px; height: 25px; border: 0; border-radius: 99px; background: #d8cdd0; position: relative; cursor: pointer; transition: .2s ease; }
.toggle::after { content: ""; position: absolute; width: 19px; height: 19px; border-radius: 50%; background: white; left: 3px; top: 3px; box-shadow: 0 2px 5px rgba(0,0,0,.14); transition: .2s ease; }
.toggle.active { background: var(--pink-400); }.toggle.active::after { transform: translateX(20px); }.toggle:disabled { cursor: not-allowed; opacity: .55; }
.output-card { padding: 26px; }
.version-tabs { display: flex; gap: 10px; margin: 17px 0; }
.version-tab { min-width: 80px; min-height: 38px; border: 1px solid var(--line); border-radius: 10px; background: white; cursor: pointer; }
.version-tab.active { background: var(--pink-500); color: white; border-color: var(--pink-500); }
.copy-output { min-height: 390px; padding: 24px; border: 1px solid #eee1e4; border-radius: 18px; background: #fff; line-height: 1.8; }
.copy-output h3 { margin: 0 0 18px; font-size: 22px; }.copy-output p { white-space: pre-line; }
.copy-meta { display: grid; gap: 5px; padding: 14px; margin-top: 18px; border-radius: 12px; background: var(--pink-50); font-size: 13px; }
.creator-tip { margin-top: 18px; padding: 17px 20px; display: flex; gap: 12px; align-items: center; }

.mode-toolbar { display: flex; gap: 16px; align-items: end; flex-wrap: wrap; }
.data-inputs { flex: 1; min-width: 500px; display: grid; grid-template-columns: repeat(6, minmax(90px, 1fr)); gap: 10px; }
.data-inputs .field { text-align: center; padding-inline: 8px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 17px; margin-bottom: 18px; }
.stat-card { padding: 20px; min-height: 124px; display: flex; flex-direction: column; justify-content: center; }
.stat-card strong { display: block; margin: 6px 0; font-size: 28px; }.trend { color: #55a966; font-size: 12px; }
.data-layout { display: grid; grid-template-columns: 1.2fr .9fr; gap: 18px; }
.big-chart { padding: 24px; }.big-chart .chart-box { height: 260px; }
.bar-list { display: grid; gap: 16px; margin-top: 24px; }
.bar-row { display: grid; grid-template-columns: 58px 1fr 70px; align-items: center; gap: 12px; font-size: 13px; }
.bar-track { height: 10px; border-radius: 99px; background: #f5e9ed; overflow: hidden; }.bar-fill { height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--pink-400), var(--pink-500)); }
.recommendations { padding: 24px; position: relative; }
.recommendation { display: grid; grid-template-columns: 40px 1fr; gap: 14px; padding: 18px 0; border-top: 1px solid var(--line); }
.recommendation:first-of-type { margin-top: 16px; }.rec-no { width: 36px; height: 36px; border-radius: 11px; background: var(--pink-500); color: white; display: grid; place-items: center; font-weight: 700; }
.recommendation h4 { margin: 0 0 6px; }.recommendation p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.recommendation h4 .pill { margin-left: 6px; padding: 3px 7px; font-size: 10px; vertical-align: middle; }
.two-column-insights { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.peek-cat { width: 88px; display: block; margin: -12px 6px -20px auto; }

.history-toolbar { padding: 18px; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 18px; }
.search-wrap { position: relative; flex: 1; min-width: 220px; }.search-wrap .icon { position: absolute; left: 13px; top: 12px; color: var(--muted); }.search-wrap .field { padding-left: 43px; }
.history-list { padding: 12px 20px; overflow-x: auto; }
.history-head, .history-item { min-width: 760px; display: grid; grid-template-columns: minmax(250px, 1.6fr) 130px 155px 100px 90px; gap: 14px; align-items: center; }
.history-head { padding: 15px 8px; font-size: 12px; color: var(--muted); }
.history-item { padding: 17px 8px; border-top: 1px solid #f2e4e7; font-size: 14px; }
.history-title { display: flex; align-items: center; gap: 11px; }.history-icon { width: 35px; height: 35px; display: grid; place-items: center; border-radius: 10px; background: var(--pink-50); color: var(--pink-500); }.history-icon .icon { width: 18px; height: 18px; }
.history-summary { margin-top: 18px; padding: 22px; display: grid; grid-template-columns: auto repeat(3, 1fr) minmax(230px, 1.4fr); align-items: center; gap: 18px; overflow: hidden; }
.summary-stat { padding-left: 18px; border-left: 1px solid var(--line); }.summary-stat strong { font-size: 28px; }.summary-cat { width: 95px; justify-self: end; }

.loading-shimmer { animation: shimmer 1.1s infinite alternate; }
@keyframes shimmer { from { opacity: .5; } to { opacity: 1; } }
.fade-in { animation: fade .35s ease both; }
@keyframes fade { from { opacity: 0; transform: translateY(7px); } }
.toast { position: fixed; z-index: 100; left: 50%; bottom: 30px; transform: translate(-50%, 20px); max-width: min(620px, calc(100% - 36px)); padding: 12px 18px; border-radius: 12px; background: var(--cocoa); color: white; box-shadow: var(--shadow); opacity: 0; pointer-events: none; transition: .25s ease; text-align: center; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.hidden { display: none !important; }

@media (max-width: 1180px) {
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: 180px; display: grid; grid-template-columns: 70px 1fr auto; grid-template-rows: auto auto; column-gap: 22px; align-items: center; }
  .feature-icon { grid-row: 1 / 3; margin: 0; }.feature-card h2 { align-self: end; }.feature-card p { margin: 4px 20px 0 0; }.feature-card .button { grid-column: 3; grid-row: 1 / 3; }
  .data-inputs { grid-template-columns: repeat(3, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  body { padding-bottom: 76px; }
  .sidebar { display: none; }
  .mobile-header { position: sticky; top: 0; z-index: 30; height: 68px; padding: 12px 18px; display: flex; align-items: center; justify-content: space-between; background: rgba(255,249,244,.88); border-bottom: 1px solid rgba(242,217,223,.7); backdrop-filter: blur(14px); }
  .main-content { margin: 0; padding: 20px 18px 40px; }
  .topbar .language-switch { display: none; }
  .mobile-nav { position: fixed; z-index: 30; inset: auto 0 0; height: 72px; display: grid; grid-template-columns: repeat(5, 1fr); background: rgba(255,253,251,.94); border-top: 1px solid var(--line); backdrop-filter: blur(14px); padding-bottom: env(safe-area-inset-bottom); }
  .mobile-nav .nav-button { min-height: 68px; padding: 7px 2px; border-radius: 0; flex-direction: column; justify-content: center; gap: 3px; font-size: 10px; }
  .mobile-nav .nav-button.active { background: transparent; }
  .mobile-nav .icon { width: 20px; height: 20px; }
  .hero { padding-top: 10px; }.hero h1 { padding-right: 95px; font-size: 37px; }.hero p { padding-right: 75px; font-size: 14px; }.hero-art { width: 120px; height: 100px; right: 0; top: 7px; transform: scale(.82); transform-origin: right top; }
  .home-lower, .analysis-grid, .creator-layout, .data-layout { grid-template-columns: 1fr; }
  .home-lower .note-card { order: -1; }
  .record-row { grid-template-columns: 1fr 90px; }.record-row > :nth-child(2), .record-row > :nth-child(3) { display: none; }
  .source-row { grid-template-columns: 1fr; }
  .upload-box.compact { min-width: 100%; }
  .analysis-intro { align-items: flex-start; }.analysis-intro .thumb { width: 66px; height: 66px; }.cat-magnifier { display: none; }
  .data-inputs { min-width: 100%; grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .history-summary { grid-template-columns: repeat(3, 1fr); }.history-summary > h3 { grid-column: 1 / -1; }.history-summary .summary-cat { display: none; }.summary-stat { padding-left: 0; border-left: 0; }
}

@media (max-width: 560px) {
  .page-title { font-size: 29px; }.page-subtitle { font-size: 13px; }
  .topbar { margin-bottom: 19px; }
  .hero h1 { font-size: 32px; max-width: 330px; }
  .feature-grid { gap: 14px; margin-top: 18px; }
  .feature-card { min-height: 165px; padding: 20px; display: grid; grid-template-columns: 54px 1fr 24px; column-gap: 13px; }
  .feature-icon { width: 54px; height: 54px; border-radius: 16px; }.feature-icon .icon { width: 27px; height: 27px; }.feature-card h2 { font-size: 19px; }.feature-card p { grid-column: 2 / 4; font-size: 12px; margin: 5px 0 0; }.feature-card .button { grid-column: 3; width: 24px; min-width: 24px; padding: 0; border: 0; background: transparent; color: var(--cocoa); box-shadow: none; }.feature-card .button span { display: none; }
  .recent-card, .note-card, .tool-card, .result-card, .form-card, .output-card, .big-chart, .recommendations { padding: 18px; }
  .segmented { width: 100%; display: grid; grid-template-columns: repeat(2, 1fr); }.segment { padding: 0 8px; }
  .analysis-intro { padding: 16px; }.analysis-intro h2 { font-size: 18px; }.analysis-intro p { font-size: 12px; }
  .step { grid-template-columns: 28px 75px 1fr; gap: 7px; }.step span:last-child { font-size: 11px; }
  .platform-options { grid-template-columns: 1fr 1fr; }
  .copy-output { padding: 18px; font-size: 13px; min-height: 340px; }.copy-output h3 { font-size: 18px; }
  .input-grid { grid-template-columns: 1fr; }.stats-grid { gap: 10px; }.stat-card { padding: 14px; min-height: 105px; }.stat-card strong { font-size: 23px; }
  .big-chart .chart-box { height: 190px; }.bar-row { grid-template-columns: 46px 1fr 58px; gap: 7px; }
  .two-column-insights { grid-template-columns: 1fr; gap: 4px; }
  .history-toolbar .segmented { grid-template-columns: repeat(2, 1fr); }
  .history-summary { gap: 9px; padding: 16px; }.summary-stat strong { font-size: 23px; }
  .toast { width: calc(100% - 36px); text-align: center; bottom: 87px; }
}