:root {
  --ink: #07100d;
  --forest: #092118;
  --forest-2: #173a31;
  --jade: #1f8f6a;
  --jade-2: #12d9b9;
  --mint: #dff4ea;
  --mint-2: #eff8f4;
  --gold: #ffd552;
  --cream: #fff9eb;
  --canvas: #f7faf4;
  --surface: rgba(255, 255, 255, 0.86);
  --border: rgba(23, 58, 49, 0.14);
  --muted: #5e766a;
  --shadow: 0 28px 90px rgba(18, 78, 58, 0.14);
  --shadow-soft: 0 18px 54px rgba(18, 78, 58, 0.1);
}

* { box-sizing: border-box; }
html {
  min-height: 100%;
  background:
    radial-gradient(circle at 8% 10%, rgba(255, 213, 82, 0.2), transparent 30rem),
    radial-gradient(circle at 78% 4%, rgba(18, 217, 185, 0.2), transparent 34rem),
    linear-gradient(145deg, var(--canvas), var(--cream) 58%, #f2fbf6);
  color: var(--forest);
  font-family: Inter, "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
}
body { margin: 0; min-height: 100vh; }
button, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled {
  cursor: wait;
  opacity: .68;
}

.prototype-shell {
  width: min(1320px, calc(100vw - 48px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 56px 0 70px;
  display: grid;
  grid-template-columns: 390px 390px 360px;
  gap: 38px;
  align-items: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}
.brand img {
  width: 42px;
  height: 42px;
  border-radius: 13px;
  box-shadow: 0 14px 30px rgba(7, 16, 13, 0.18);
}
.brand strong { display: block; font-size: 18px; line-height: 1; }
.brand span { display: block; margin-top: 5px; color: var(--muted); font-size: 12px; font-weight: 700; }

.brief h1 {
  margin: 38px 0 22px;
  font-size: 56px;
  line-height: 1.04;
  letter-spacing: -0.055em;
  font-weight: 840;
}
.brief p {
  margin: 0;
  color: var(--forest-2);
  font-size: 17px;
  line-height: 1.72;
  font-weight: 520;
}
.proof-card {
  margin-top: 34px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 26px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}
.proof-card span,
.brief-list span,
.side-note span {
  display: block;
  margin-bottom: 9px;
  color: var(--jade);
  font-size: 12px;
  font-weight: 820;
  letter-spacing: 0.06em;
}
.proof-card strong {
  display: block;
  font-size: 21px;
  line-height: 1.36;
  letter-spacing: -0.02em;
}
.brief-list {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}
.brief-list div {
  padding: 17px 18px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: rgba(255,255,255,.62);
}
.brief-list strong { display: block; font-size: 16px; }
.brief-list p { margin-top: 5px; font-size: 13px; line-height: 1.55; color: var(--muted); }

.phone-stage { display: flex; justify-content: center; }
.phone-shell {
  position: relative;
  width: 390px;
  height: 842px;
  padding: 10px;
  border-radius: 54px;
  background: linear-gradient(145deg, #14231c, #07100d);
  box-shadow: 0 40px 110px rgba(7, 16, 13, .26), inset 0 0 0 2px rgba(255,255,255,.08);
}
.phone-shell::before {
  content: "";
  position: absolute;
  inset: 5px;
  border: 2px solid rgba(18, 217, 185, .42);
  border-radius: 50px;
  pointer-events: none;
}
.device-btn {
  position: absolute;
  width: 4px;
  border-radius: 999px;
  background: #17251f;
}
.device-btn.left { left: -4px; top: 142px; height: 88px; }
.device-btn.right { right: -4px; top: 212px; height: 68px; }
.dynamic-island {
  position: absolute;
  z-index: 20;
  left: 50%;
  top: 18px;
  width: 116px;
  height: 34px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: #050806;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.08);
}
.dynamic-island span,
.dynamic-island i {
  position: absolute;
  top: 12px;
  border-radius: 999px;
  background: #16251f;
}
.dynamic-island span { left: 23px; width: 12px; height: 12px; }
.dynamic-island i { right: 28px; width: 42px; height: 10px; }

.phone-screen {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 44px;
  background:
    radial-gradient(circle at 78% 6%, rgba(18, 217, 185, .16), transparent 12rem),
    linear-gradient(180deg, #fbfff8, #f1faf4 78%, #eaf6ef);
}
.api-status-pill {
  position: absolute;
  z-index: 26;
  left: 22px;
  right: 22px;
  bottom: 86px;
  display: grid;
  place-items: center;
  min-height: 28px;
  border: 1px solid rgba(23, 58, 49, .12);
  border-radius: 999px;
  background: rgba(255, 255, 255, .82);
  color: var(--muted);
  font-size: 11px;
  font-weight: 780;
  pointer-events: none;
  box-shadow: 0 10px 24px rgba(18, 78, 58, .08);
}
.api-status-pill[data-tone="busy"] {
  border-color: rgba(246, 200, 95, .48);
  background: rgba(255, 249, 235, .9);
  color: #846709;
}
.api-status-pill[data-tone="ok"] {
  border-color: rgba(31, 143, 106, .34);
  background: rgba(223, 244, 234, .92);
  color: var(--jade);
}
.api-status-pill[data-tone="error"] {
  border-color: rgba(168, 75, 59, .28);
  background: rgba(255, 235, 229, .9);
  color: #94412f;
}
.app-screen {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
}
.app-screen.active { display: flex; }
.screen-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 68px 20px 104px;
  scrollbar-width: none;
}
.screen-scroll::-webkit-scrollbar { display: none; }
.app-status, .topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 11px;
  font-weight: 820;
  letter-spacing: .03em;
}
.app-status button, .topbar button {
  min-width: 44px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.78);
  color: var(--forest-2);
  font-size: 12px;
  font-weight: 760;
}
.topbar {
  position: relative;
  z-index: 3;
  height: 72px;
  padding: 26px 18px 8px;
}
.topbar span { color: var(--forest-2); }
.topbar + .screen-scroll { padding-top: 10px; }
.app-brand-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 28px 0 22px;
}
.app-brand-row img { width: 32px; height: 32px; border-radius: 10px; }
.app-brand-row span { font-size: 13px; font-weight: 780; color: var(--jade); }

.screen-scroll h2 {
  margin: 0 0 12px;
  color: var(--forest);
  font-size: 27px;
  line-height: 1.14;
  letter-spacing: -0.04em;
  font-weight: 830;
}
.screen-intro {
  margin: 0 0 22px;
  color: var(--forest-2);
  font-size: 14px;
  line-height: 1.58;
  font-weight: 520;
}

.result-preview, .voice-card, .host-card, .summary-card, .pay-card, .share-card, .podcast-card {
  border: 1px solid var(--border);
  border-radius: 24px;
  background: rgba(255,255,255,.82);
  box-shadow: var(--shadow-soft);
}
.result-preview {
  padding: 18px;
  margin-bottom: 14px;
}
.result-preview span, .host-card span, .summary-card span, .pay-card span, .share-card span {
  color: var(--jade);
  font-size: 12px;
  font-weight: 820;
}
.result-preview strong {
  display: block;
  margin-top: 8px;
  font-size: 17px;
  line-height: 1.32;
}
.mini-map {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 7px;
  margin-top: 14px;
}
.mini-map i {
  padding: 10px 4px;
  border-radius: 13px;
  background: var(--mint-2);
  color: var(--forest-2);
  text-align: center;
  font-style: normal;
  font-size: 11px;
  font-weight: 760;
}
.voice-card { padding: 14px; background: rgba(255, 249, 235, .66); }
.voice-main {
  display: grid;
  grid-template-columns: 44px 1fr 24px;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border: 1px solid rgba(246, 200, 95, .44);
  border-radius: 18px;
  background: rgba(255,255,255,.72);
}
.voice-main span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 16px;
  background: var(--gold);
  color: var(--forest);
  font-weight: 830;
}
.voice-main strong { font-size: 14px; }
.voice-main p { margin: 5px 0 0; color: var(--muted); font-size: 12px; line-height: 1.4; }
.voice-main b {
  width: 22px;
  height: 28px;
  background: linear-gradient(90deg, transparent 0 20%, var(--gold) 20% 30%, transparent 30% 45%, var(--gold) 45% 55%, transparent 55% 72%, var(--gold) 72% 82%, transparent 82%);
}
.entry-actions, .unlock-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
  margin-top: 12px;
}
.primary, .secondary {
  min-height: 46px;
  border-radius: 16px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 780;
}
.primary {
  background: linear-gradient(135deg, var(--jade), #078463);
  color: white;
}
.secondary {
  border-color: var(--border);
  background: rgba(255,255,255,.75);
  color: var(--forest-2);
}
.full { width: 100%; margin-top: 12px; }
.last-link {
  width: 100%;
  margin-top: 14px;
  min-height: 42px;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: rgba(255,255,255,.64);
  color: var(--forest-2);
  font-size: 13px;
  font-weight: 700;
}

textarea {
  width: 100%;
  min-height: 220px;
  margin: 18px 0 14px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: rgba(255,255,255,.82);
  color: var(--forest);
  font-size: 15px;
  line-height: 1.65;
  resize: none;
  outline: none;
  box-shadow: var(--shadow-soft);
}
.hint-row {
  display: grid;
  gap: 8px;
  margin-bottom: 10px;
}
.hint-row span {
  padding: 12px 14px;
  border-radius: 15px;
  background: var(--mint-2);
  color: var(--jade);
  font-size: 13px;
  font-weight: 760;
}
.host-card, .pay-card { padding: 18px; margin: 18px 0 14px; }
.host-card strong, .pay-card strong, .share-card strong, .podcast-card strong {
  display: block;
  margin-top: 8px;
  font-size: 18px;
  line-height: 1.35;
}
.host-card p, .pay-card p, .share-card p, .podcast-card p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}
.advisor-pair, .template-grid, .member-grid, .action-grid {
  display: grid;
  gap: 10px;
}
.advisor-pair { grid-template-columns: 1fr 1fr; margin: 12px 0 12px; }
.advisor-pair article, .advisor-list button, .template-grid button, .member-grid article {
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(255,255,255,.76);
  text-align: left;
}
.advisor-pair article { padding: 14px; }
.advisor-pair span, .advisor-list span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 10px;
  border-radius: 13px;
  background: var(--mint);
  color: var(--jade);
  font-weight: 830;
}
.advisor-pair strong, .advisor-list strong, .template-grid strong { display: block; font-size: 14px; }
.advisor-pair p, .advisor-list p, .template-grid p { margin: 6px 0 0; color: var(--muted); font-size: 12px; line-height: 1.45; }
.advisor-list { display: grid; gap: 10px; margin-top: 18px; }
.advisor-list button {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 10px;
  padding: 14px;
}
.advisor-list .selected, .template-grid .selected {
  border-color: rgba(31,143,106,.42);
  background: rgba(223,244,234,.74);
}

.chat .bubble {
  max-width: 92%;
  margin: 12px 0;
  padding: 14px 15px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.78);
}
.bubble.user {
  margin-left: auto;
  background: linear-gradient(135deg, var(--jade), #087a5b);
  color: white;
}
.bubble span { color: var(--jade); font-size: 12px; font-weight: 820; }
.bubble p { margin: 5px 0 0; font-size: 13px; line-height: 1.55; }
.bubble.user p { margin: 0; }
.bubble.host { border-color: rgba(246,200,95,.42); background: rgba(255,249,235,.8); }
.sticky-actions {
  position: sticky;
  bottom: 6px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
  padding-top: 12px;
}
.premium { background: linear-gradient(145deg, rgba(255,249,235,.92), rgba(223,244,234,.88)); border-color: rgba(246,200,95,.48); }
.summary-card { padding: 18px; margin: 18px 0 12px; background: linear-gradient(145deg, var(--forest), var(--jade)); color: white; }
.summary-card span { color: var(--gold); }
.summary-card strong { display: block; margin-top: 8px; font-size: 19px; line-height: 1.35; }
.structure-list { display: grid; gap: 9px; }
.structure-list div {
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255,255,255,.76);
}
.structure-list span { color: var(--jade); font-size: 12px; font-weight: 820; }
.structure-list p { margin: 6px 0 0; color: var(--forest-2); font-size: 13px; line-height: 1.5; font-weight: 620; }
.template-grid { grid-template-columns: 1fr; margin-top: 18px; }
.template-grid button { padding: 16px; }

.diagram-card {
  position: relative;
  height: 360px;
  margin: 18px 0 14px;
  border-radius: 28px;
  border: 1px solid rgba(31,143,106,.22);
  background:
    linear-gradient(90deg, rgba(23,58,49,.04) 1px, transparent 1px) 0 0 / 28px 28px,
    linear-gradient(rgba(23,58,49,.035) 1px, transparent 1px) 0 0 / 28px 28px,
    rgba(255,255,255,.78);
  box-shadow: var(--shadow-soft);
}
.diagram-center {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 154px;
  min-height: 108px;
  transform: translate(-50%, -50%);
  display: grid;
  place-items: center;
  padding: 14px;
  border-radius: 24px;
  background: linear-gradient(145deg, var(--forest), var(--jade));
  color: white;
  text-align: center;
}
.diagram-center strong { font-size: 16px; }
.diagram-center span { color: var(--gold); font-size: 11px; font-weight: 760; }
.diagram-node {
  position: absolute;
  min-width: 94px;
  padding: 11px 12px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255,255,255,.86);
  color: var(--forest-2);
  text-align: center;
  font-size: 12px;
  font-weight: 780;
}
.n1 { left: 22px; top: 54px; }
.n2 { right: 24px; top: 56px; }
.n3 { right: 26px; top: 158px; }
.n4 { right: 36px; bottom: 52px; }
.n5 { left: 48px; bottom: 50px; border-color: rgba(246,200,95,.54); background: rgba(255,249,235,.9); }
.n6 { left: 22px; top: 160px; }
.share-card { padding: 22px; margin: 18px 0; background: linear-gradient(145deg, var(--forest), var(--jade)); color: white; }
.share-card span { color: var(--gold); }
.share-card p { color: rgba(255,255,255,.82); }
.action-grid { grid-template-columns: 1fr 1fr; }
.action-grid button {
  min-height: 58px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255,255,255,.76);
  color: var(--forest-2);
  font-weight: 780;
}
.podcast-card { padding: 22px; margin: 18px 0; }
.play {
  display: grid;
  place-items: center;
  width: 62px;
  height: 62px;
  margin-bottom: 16px;
  border-radius: 22px;
  background: linear-gradient(145deg, var(--forest), var(--jade));
  color: var(--gold);
  font-size: 22px;
}
.progress {
  height: 8px;
  margin-top: 18px;
  border-radius: 999px;
  background: var(--mint);
  overflow: hidden;
}
.progress span { display: block; width: 42%; height: 100%; background: linear-gradient(90deg, var(--jade), var(--gold)); }
.podcast-audio-playlist {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}
.podcast-audio-playlist div {
  padding: 12px;
  border: 1px solid rgba(9, 128, 93, .22);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(221, 246, 235, .84), rgba(255,255,255,.8));
}
.podcast-audio-playlist span {
  display: block;
  margin-bottom: 8px;
  color: var(--forest);
  font-size: 12px;
  font-weight: 840;
}
.podcast-audio-playlist audio {
  width: 100%;
  height: 36px;
}
.podcast-script {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}
.podcast-script div {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255,255,255,.72);
}
.podcast-script span {
  display: block;
  margin-bottom: 5px;
  color: var(--jade);
  font-size: 12px;
  font-weight: 820;
}
.podcast-script p {
  margin: 0;
  color: var(--forest-2);
  font-size: 13px;
  line-height: 1.55;
}
.echo-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 7px;
  margin: 16px 0 14px;
}
.echo-tabs button {
  min-height: 34px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.72);
  color: var(--muted);
  font-size: 11px;
  font-weight: 780;
}
.echo-tabs button.active {
  border-color: rgba(31,143,106,.4);
  background: var(--mint);
  color: var(--jade);
}
.echo-list { display: grid; gap: 12px; margin-top: 0; }
.echo-list article {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(255,255,255,.78);
}
.echo-list span { color: var(--jade); font-size: 12px; font-weight: 820; }
.echo-list strong { display: block; margin-top: 7px; font-size: 16px; line-height: 1.34; }
.echo-list p { margin: 7px 0 0; color: var(--muted); font-size: 12px; line-height: 1.48; }
.member-grid { grid-template-columns: repeat(3, 1fr); margin: 18px 0; }
.member-grid article { padding: 16px 10px; text-align: center; }
.member-grid span { color: var(--muted); font-size: 11px; font-weight: 760; }
.member-grid strong { display: block; margin-top: 7px; font-size: 28px; color: var(--forest); }
.member-grid p { margin: 0; font-size: 12px; color: var(--muted); }
.profile-card {
  display: grid;
  grid-template-columns: 54px 1fr 54px;
  gap: 12px;
  align-items: center;
  margin-bottom: 22px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: rgba(255,255,255,.78);
  box-shadow: var(--shadow-soft);
}
.avatar {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 20px;
  background: linear-gradient(145deg, var(--forest), var(--jade));
  color: var(--gold);
  font-size: 22px;
  font-weight: 860;
}
.profile-main strong {
  display: block;
  color: var(--forest);
  font-size: 18px;
  line-height: 1.1;
}
.profile-main span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}
.profile-card button {
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.78);
  color: var(--jade);
  font-size: 12px;
  font-weight: 780;
}
.settings-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
  padding-bottom: 8px;
}
.settings-list button {
  position: relative;
  min-height: 58px;
  padding: 12px 42px 12px 16px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: rgba(255,255,255,.72);
  text-align: left;
}
.settings-list button::after {
  content: "›";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 20px;
  font-weight: 700;
}
.settings-list span {
  display: block;
  color: var(--forest);
  font-size: 14px;
  font-weight: 820;
}
.settings-list b {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
  font-weight: 620;
}

.tabbar {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 14px;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: rgba(255,255,255,.8);
  backdrop-filter: blur(18px);
}
.tabbar button {
  min-height: 40px;
  border: 0;
  border-radius: 16px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 780;
}
.tabbar button.active {
  background: var(--mint);
  color: var(--jade);
}

.nav-panel {
  align-self: center;
}
.panel-title {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
  color: var(--forest-2);
  font-size: 14px;
  font-weight: 820;
}
.panel-title span { color: var(--jade); }
.page-list {
  display: grid;
  gap: 9px;
}
.page-list button {
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.64);
  color: var(--forest-2);
  text-align: left;
  font-size: 13px;
  font-weight: 720;
}
.page-list button.active {
  border-color: rgba(31,143,106,.42);
  background: var(--mint);
  color: var(--jade);
}
.side-note {
  margin-top: 26px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 26px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}
.side-note strong { display: block; font-size: 22px; line-height: 1.34; letter-spacing: -.02em; }
.side-note p { margin: 10px 0 0; color: var(--muted); font-size: 13px; line-height: 1.6; }

@media (max-width: 1180px) {
  .prototype-shell { grid-template-columns: 1fr; justify-items: center; align-items: start; }
  .brief, .nav-panel { width: min(760px, 100%); }
}