/* AI mediator page: OpenShop neutral broker, aligned with the paper-market shell. */
.nav-ai {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: none;
  padding: 5px 11px;
  border: 1px solid rgba(30, 111, 92, .28);
  border-radius: var(--radius-pill);
  color: var(--jade);
  font-size: .78rem;
  font-weight: 750;
  letter-spacing: .02em;
  background: var(--jade-soft);
  white-space: nowrap;
}
.nav-ai::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(215, 70, 44, .12);
}
.nav-ai.is-active { color: var(--accent-deep); border-color: rgba(215, 70, 44, .35); background: var(--accent-soft); }
.nav-ai.is-active::before { background: var(--jade); box-shadow: 0 0 0 3px rgba(30, 111, 92, .12); }

.ai-page {
  padding-top: clamp(30px, 4vw, 62px);
  padding-bottom: clamp(64px, 8vw, 110px);
}
.ai-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(250px, .55fr);
  gap: clamp(24px, 6vw, 90px);
  align-items: end;
  padding-bottom: clamp(34px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
}
.ai-hero h1 {
  max-width: 850px;
  margin-top: 15px;
  font-family: var(--font-display);
  font-size: clamp(2.55rem, 5.6vw, 5.45rem);
  font-weight: 500;
  line-height: 1.04;
  letter-spacing: -.055em;
}
.ai-hero h1 em { color: var(--jade); font-style: normal; }
.ai-lede {
  max-width: 640px;
  margin-top: 23px;
  color: var(--ink-soft);
  font-size: clamp(.92rem, 1.15vw, 1.06rem);
  line-height: 1.9;
}
.ai-hero__marks { display: flex; flex-wrap: wrap; gap: 14px 22px; margin-top: 24px; color: var(--muted); font-size: .78rem; }
.ai-hero__marks span { display: inline-flex; align-items: center; gap: 6px; color: var(--jade); }
.ai-seal {
  position: relative;
  display: flex;
  min-height: 215px;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  padding: 24px;
  overflow: hidden;
  color: var(--paper-raised);
  background: var(--night);
  border-radius: 4px 24px 4px 24px;
  box-shadow: 11px 11px 0 var(--honey-soft), var(--shadow-sm);
}
.ai-seal::after {
  content: "中";
  position: absolute;
  right: -9px;
  bottom: -24px;
  color: rgba(246, 241, 232, .055);
  font-family: var(--font-display);
  font-size: 10rem;
  line-height: 1;
  pointer-events: none;
}
.ai-seal__label { color: var(--honey); font-family: var(--font-mono); font-size: .65rem; letter-spacing: .16em; }
.ai-seal b { position: relative; z-index: 1; font-family: var(--font-display); font-size: clamp(1.25rem, 2vw, 1.65rem); font-weight: 500; line-height: 1.45; }
.ai-seal__line { width: 38px; height: 1px; background: var(--honey); }
.ai-seal small { position: relative; z-index: 1; max-width: 250px; color: #cbd6cf; font-size: .75rem; line-height: 1.7; }
.ai-workbench {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 332px);
  gap: clamp(22px, 3.5vw, 46px);
  align-items: start;
  margin-top: clamp(28px, 4vw, 52px);
}
.ai-main, .ai-side { display: grid; gap: 22px; min-width: 0; }
.ai-side { position: sticky; top: 22px; }
.ai-card {
  min-width: 0;
  padding: clamp(20px, 2.5vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-raised);
  box-shadow: var(--shadow-xs);
}
.ai-brief { border-top: 3px solid var(--accent); }
.ai-block-head { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; margin-bottom: 20px; }
.ai-block-head h2 { margin-top: 6px; font-family: var(--font-display); font-size: clamp(1.45rem, 2.1vw, 2rem); font-weight: 500; }
.ai-stepno { color: var(--line-strong); font-family: var(--font-display); font-size: 2rem; line-height: 1; }
.ai-field-label { display: block; margin-bottom: 8px; color: var(--ink-soft); font-size: .8rem; font-weight: 700; }
.ai-input-wrap { position: relative; }
.ai-textarea {
  display: block;
  width: 100%;
  min-height: 122px;
  resize: vertical;
  padding: 17px 18px 34px;
  color: var(--ink);
  background: #fffdf8;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font: 400 .95rem/1.75 var(--font-body);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.ai-textarea::placeholder { color: #9d8d7b; }
.ai-textarea:focus { outline: none; border-color: var(--jade); box-shadow: 0 0 0 3px rgba(30, 111, 92, .11); }
.ai-textarea:disabled { background: var(--paper-deep); cursor: not-allowed; }
.ai-count { position: absolute; right: 13px; bottom: 11px; color: var(--muted); font: .68rem var(--font-mono); }
.ai-examples { display: grid; gap: 7px; margin-top: 12px; }
.ai-example {
  display: flex;
  align-items: baseline;
  gap: 9px;
  width: 100%;
  padding: 7px 9px;
  border: 0;
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: .76rem;
  line-height: 1.55;
  text-align: left;
  cursor: pointer;
  transition: background .18s var(--ease), color .18s var(--ease);
}
.ai-example span { flex: none; color: var(--accent); font: .65rem var(--font-mono); }
.ai-example:hover:not(:disabled) { background: var(--paper-deep); color: var(--ink-soft); }
.ai-example:disabled { opacity: .5; cursor: not-allowed; }
.ai-error {
  margin-top: 12px;
  padding: 11px 13px;
  border: 1px solid #e5b8b2;
  border-radius: var(--radius-xs);
  background: #fff4f1;
  color: var(--danger);
  font-size: .79rem;
  line-height: 1.6;
}
.ai-error[hidden] { display: none; }
.ai-error .btn { margin-top: 8px; }
.ai-submit-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: 18px; }
.ai-hint { display: flex; align-items: flex-start; gap: 6px; max-width: 490px; color: var(--muted); font-size: .72rem; line-height: 1.65; }
.ai-hint svg { flex: none; margin-top: 1px; }
.ai-submit { flex: none; min-height: 46px; white-space: nowrap; }
.ai-submit:disabled { opacity: .6; cursor: not-allowed; transform: none; box-shadow: none; }
.ai-disclosure { margin-top: 18px; padding-top: 13px; border-top: 1px dashed var(--line); color: var(--muted); font-size: .68rem; line-height: 1.7; }
.ai-thread-section { display: grid; gap: 16px; }
.ai-section-line { display: flex; align-items: center; gap: 13px; color: var(--muted); font: 700 .7rem var(--font-body); letter-spacing: .08em; }
.ai-rule { height: 1px; flex: 1; background: var(--line); }
.ai-reset { padding: 3px 9px; border: 1px solid var(--line-strong); border-radius: var(--radius-pill); background: transparent; color: var(--muted); font: .68rem var(--font-body); cursor: pointer; }
.ai-reset:hover { color: var(--ink); border-color: var(--ink); }
.ai-thread { display: grid; gap: 18px; }
.ai-turn { display: grid; gap: 6px; max-width: 88%; }
.ai-turn--user { justify-self: end; }
.ai-turn--assistant { justify-self: start; width: 100%; max-width: 100%; }
.ai-turn__meta { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: .68rem; }
.ai-turn--user .ai-turn__meta { justify-content: flex-end; }
.ai-turn__meta > span:last-child { color: var(--muted); font-size: .66rem; }
.ai-turn__bubble { padding: 14px 16px; border-radius: 4px 14px 14px 14px; color: var(--ink-soft); background: var(--paper-raised); border: 1px solid var(--line); font-size: .87rem; line-height: 1.8; white-space: pre-wrap; overflow-wrap: anywhere; }
.ai-turn--user .ai-turn__bubble { border-radius: 14px 4px 14px 14px; background: var(--jade-soft); border-color: transparent; color: var(--ink); }
.ai-mini-mark { display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; color: #fff9f4; background: var(--accent); font: 700 .56rem var(--font-mono); letter-spacing: -.03em; }
.ai-loading .ai-turn__bubble { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: .8rem; }
.ai-typing { display: inline-flex; gap: 3px; align-items: center; }
.ai-typing i { display: block; width: 5px; height: 5px; border-radius: 50%; background: var(--jade); animation: aiDot 1.1s infinite ease-in-out; }
.ai-typing i:nth-child(2) { animation-delay: .16s; }
.ai-typing i:nth-child(3) { animation-delay: .32s; }
.ai-turn--error .ai-turn__bubble { border-color: #e5b8b2; background: #fff4f1; color: var(--danger); }
@keyframes aiDot { 0%, 70%, 100% { opacity: .3; transform: translateY(0); } 35% { opacity: 1; transform: translateY(-3px); } }
.ai-result { min-width: 0; }
.ai-result-inner { display: grid; gap: 22px; padding: clamp(20px, 2.6vw, 30px); border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(140deg, #fffaf2 0%, #fbf4e8 100%); box-shadow: var(--shadow-sm); }
.ai-result-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; }
.ai-result-head h2 { margin-top: 6px; font-family: var(--font-display); font-size: clamp(1.45rem, 2.3vw, 2.1rem); font-weight: 500; }
.ai-latency { color: var(--muted); font: .66rem var(--font-mono); white-space: nowrap; }
.ai-needs { display: flex; flex-wrap: wrap; gap: 6px; }
.ai-offer { display: grid; grid-template-columns: 174px minmax(0, 1fr); gap: 20px; padding: 16px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: var(--paper-raised); }
.ai-offer__media { position: relative; align-self: start; overflow: hidden; border-radius: var(--radius-xs); background: var(--paper-deep); aspect-ratio: 1; }
.ai-offer__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ai-offer__kind { position: absolute; left: 8px; bottom: 8px; padding: 3px 7px; border-radius: 4px; color: var(--white); background: rgba(34, 27, 22, .78); font-size: .64rem; }
.ai-offer__body { display: grid; gap: 10px; min-width: 0; }
.ai-offer__kicker { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; color: var(--muted); font-size: .68rem; }
.ai-offer__kicker > span:not(.ai-group-badge)::after { content: "/"; margin-left: 7px; color: var(--line-strong); }
.ai-offer__kicker > span:last-of-type::after { display: none; }
.ai-offer h3 { margin: 0; font-family: var(--font-display); font-size: clamp(1.3rem, 2vw, 1.75rem); font-weight: 500; line-height: 1.25; }
.ai-offer__title { margin: -4px 0 0; color: var(--muted); font-size: .78rem; }
.ai-offer__shop { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; color: var(--ink-soft); font-size: .76rem; font-weight: 650; }
.ai-offer__shop > span + span { padding-left: 8px; border-left: 1px solid var(--line); color: var(--muted); font-weight: 400; }
.ai-verified { display: inline-flex; align-items: center; gap: 3px; color: var(--jade); font-size: .65rem; font-weight: 500; }
.ai-offer__facts { display: flex; flex-wrap: wrap; gap: 8px 13px; color: var(--muted); font-size: .71rem; }
.ai-offer__facts span { display: inline-flex; align-items: center; gap: 4px; }
.ai-group-badge { display: inline-flex; align-items: center; gap: 4px; padding: 2px 7px; border-radius: var(--radius-pill); color: #7a5519; background: var(--honey-soft); font-size: .66rem; font-weight: 700; }
.ai-price-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; padding: 11px 0; border-top: 1px dashed var(--line); border-bottom: 1px dashed var(--line); }
.ai-price-row small { display: block; margin-bottom: 3px; color: var(--muted); font-size: .65rem; }
.ai-price-note { color: var(--muted); font-size: .63rem; line-height: 1.5; text-align: right; }
.ai-was-price { margin-left: 5px; color: var(--muted); font-size: .77rem; }
.was-price { text-decoration: line-through; }
.ai-rationale { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: 12px; padding: 11px 12px; border-radius: var(--radius-xs); background: rgba(223, 238, 232, .45); }
.ai-rationale > span { color: var(--jade); font-size: .7rem; font-weight: 750; }
.ai-rationale p { margin: 0; color: var(--ink-soft); font-size: .79rem; line-height: 1.75; }
.ai-rationale--tradeoff { background: rgba(248, 236, 207, .48); }
.ai-rationale--tradeoff > span { color: #7a5519; }
.ai-group-note { display: flex; gap: 6px; align-items: flex-start; color: #7a5519; font-size: .7rem; line-height: 1.65; }
.ai-offer__actions { display: flex; flex-wrap: wrap; gap: 9px; align-items: center; padding-top: 2px; }
.ai-offer__actions .btn--primary { flex: 1; min-width: 180px; }
.ai-offer__smallprint { color: var(--muted); font-size: .63rem; line-height: 1.6; }
.ai-questions { display: flex; gap: 11px; padding: 14px; border: 1px dashed var(--line-strong); border-radius: var(--radius-xs); background: #fffdf8; }
.ai-question-mark, .ai-clarify__mark { display: grid; place-items: center; flex: none; width: 25px; height: 25px; border-radius: 50%; color: var(--accent-deep); background: var(--accent-soft); font: 700 .83rem var(--font-display); }
.ai-questions b { display: block; margin-bottom: 4px; color: var(--ink); font-size: .75rem; }
.ai-questions p { margin: 2px 0 0; color: var(--ink-soft); font-size: .79rem; line-height: 1.65; }
.ai-clarify { display: flex; gap: 11px; align-items: flex-start; padding: 14px; border: 1px dashed var(--line-strong); border-radius: var(--radius-xs); }
.ai-clarify p { margin: 3px 0 0; color: var(--ink-soft); font-size: .8rem; line-height: 1.7; }
.ai-alternatives { display: grid; gap: 11px; }
.ai-alternative-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
.ai-alternative { display: grid; grid-template-columns: 58px minmax(0, 1fr); gap: 10px; padding: 10px; border: 1px solid var(--line); border-radius: var(--radius-xs); background: rgba(255, 250, 242, .7); }
.ai-alternative img { width: 58px; height: 58px; object-fit: cover; border-radius: 6px; }
.ai-alternative > div { min-width: 0; }
.ai-alternative__shop { margin: 0 0 2px; color: var(--muted); font-size: .62rem; }
.ai-alternative h4 { margin: 0; color: var(--ink); font-family: var(--font-body); font-size: .76rem; font-weight: 650; line-height: 1.4; }
.ai-alternative__why { margin: 4px 0; color: var(--muted); font-size: .66rem; line-height: 1.5; }
.ai-alternative__foot { display: flex; align-items: center; justify-content: space-between; gap: 5px; }
.ai-alternative__foot a { display: inline-flex; align-items: center; gap: 2px; color: var(--jade); font-size: .64rem; text-decoration: none; }
.ai-result-foot { display: flex; flex-wrap: wrap; gap: 8px 15px; justify-content: space-between; color: var(--muted); font-size: .63rem; line-height: 1.6; }
.ai-result-foot p { display: flex; gap: 5px; margin: 0; max-width: 690px; }
.ai-result-foot p svg { flex: none; margin-top: 1px; }
.ai-adopted { display: flex; gap: 10px; align-items: flex-start; padding: 12px; border: 1px solid #bcd9cc; border-radius: var(--radius-xs); background: var(--jade-soft); }
.ai-adopted__mark { display: grid; place-items: center; flex: none; width: 26px; height: 26px; border-radius: 50%; color: var(--white); background: var(--jade); }
.ai-adopted b { display: block; color: var(--jade); font-size: .8rem; }
.ai-adopted p { margin: 3px 0 8px; color: var(--ink-soft); font-size: .71rem; line-height: 1.6; }
.ai-adopt-error { margin-bottom: 8px; padding: 8px 10px; border: 1px solid #e5b8b2; border-radius: var(--radius-xs); background: #fff4f1; color: var(--danger); font-size: .72rem; line-height: 1.5; }
.ai-adopt-error .btn { display: block; margin-top: 5px; }
.ai-status-card__top { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.ai-status-card h2 { margin-top: 5px; font-family: var(--font-display); font-size: 1.45rem; font-weight: 500; }
.ai-live { display: inline-flex; align-items: center; gap: 5px; margin-top: 3px; padding: 4px 8px; border-radius: var(--radius-pill); color: var(--jade); background: var(--jade-soft); font-size: .62rem; font-weight: 700; white-space: nowrap; }
.ai-live i { width: 5px; height: 5px; border-radius: 50%; background: var(--jade); }
.ai-live--off { color: var(--muted); background: var(--paper-deep); }
.ai-live--off i { background: var(--muted); }
.ai-status-message { margin: 16px 0; color: var(--ink-soft); font-size: .78rem; line-height: 1.75; }
.ai-status-card .btn--small { width: 100%; }
.ai-status-loading { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: .76rem; line-height: 1.6; }
.ai-pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--jade); box-shadow: 0 0 0 4px var(--jade-soft); animation: aiPulse 1.7s infinite ease-in-out; }
@keyframes aiPulse { 0%, 100% { opacity: .55; } 50% { opacity: 1; } }
.ai-login-callout { display: flex; gap: 9px; flex-wrap: wrap; align-items: center; margin-top: 14px; padding: 11px; border-radius: var(--radius-xs); background: var(--paper-deep); }
.ai-login-callout > span { color: var(--jade); }
.ai-login-callout p { flex: 1 1 150px; margin: 0; color: var(--ink-soft); font-size: .71rem; line-height: 1.6; }
.ai-login-callout .btn { width: auto; }
.ai-quota-box { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 13px; }
.ai-quota-box > div { padding: 9px; border-radius: var(--radius-xs); background: var(--paper-deep); }
.ai-quota-box span { display: block; color: var(--muted); font-size: .62rem; }
.ai-quota-box b { display: block; margin-top: 3px; color: var(--ink); font-family: var(--font-display); font-size: 1.12rem; font-weight: 500; }
.ai-limit-note { margin: 9px 0 0; color: var(--muted); font-size: .62rem; line-height: 1.5; }
.ai-privacy-brief { display: flex; align-items: flex-start; gap: 4px; margin: 15px 0 0; padding-top: 11px; border-top: 1px dashed var(--line); color: var(--muted); font-size: .63rem; line-height: 1.6; }
.ai-status-error p { color: var(--danger); font-size: .78rem; line-height: 1.7; }
.ai-status-error .btn { margin-top: 4px; width: 100%; }
.ai-rules ol { display: grid; gap: 16px; margin: 17px 0 0; padding: 0; list-style: none; }
.ai-rules li { display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 8px; }
.ai-rules li > span { color: var(--accent); font: .64rem var(--font-mono); padding-top: 3px; }
.ai-rules b { color: var(--ink); font-size: .78rem; }
.ai-rules p { margin: 4px 0 0; color: var(--muted); font-size: .7rem; line-height: 1.65; }
.ai-rules h2 { margin-top: 5px; font-family: var(--font-display); font-size: 1.35rem; font-weight: 500; }

@media (max-width: 1080px) {
  .ai-workbench { grid-template-columns: minmax(0, 1fr) 280px; }
  .ai-offer { grid-template-columns: 140px minmax(0, 1fr); }
  .ai-alternative-grid { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .ai-hero { grid-template-columns: 1fr; align-items: start; }
  .ai-seal { min-height: 0; width: min(100%, 520px); margin-top: 4px; }
  .ai-workbench { grid-template-columns: 1fr; }
  .ai-side { position: static; grid-row: 2; }
  .ai-rules { display: none; }
  .ai-offer { grid-template-columns: 118px minmax(0, 1fr); gap: 14px; }
  .ai-submit-row { align-items: flex-start; flex-direction: column; }
  .ai-submit { width: 100%; }
  .nav-ai { font-size: .72rem; padding: 4px 8px; }
}
@media (max-width: 600px) {
  .ai-page { padding-top: 24px; }
  .ai-hero h1 { font-size: clamp(2.15rem, 10vw, 3.2rem); }
  .ai-lede { margin-top: 17px; font-size: .9rem; }
  .ai-seal { padding: 19px; box-shadow: 7px 7px 0 var(--honey-soft); }
  .ai-card { padding: 17px; border-radius: var(--radius-sm); }
  .ai-workbench { gap: 16px; margin-top: 20px; }
  .ai-main { gap: 16px; }
  .ai-textarea { min-height: 138px; }
  .ai-example { padding-inline: 3px; font-size: .72rem; }
  .ai-turn { max-width: 96%; }
  .ai-offer { grid-template-columns: 1fr; }
  .ai-offer__media { width: 112px; height: 112px; aspect-ratio: auto; }
  .ai-price-row { align-items: flex-start; }
  .ai-price-note { max-width: 100px; }
  .ai-rationale { grid-template-columns: 1fr; gap: 4px; }
  .ai-result-inner { padding: 17px; gap: 17px; }
  .ai-result-head { align-items: flex-start; flex-direction: column; gap: 5px; }
  .ai-offer__actions { align-items: stretch; }
  .ai-offer__actions .btn { width: 100%; flex: 1 1 auto; }
  .ai-alternative { grid-template-columns: 48px minmax(0, 1fr); }
  .ai-alternative img { width: 48px; height: 48px; }
  .ai-section-line { gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  .ai-typing i, .ai-pulse { animation: none; }
  .btn, .ai-example, .ai-textarea { transition: none; }
}