:root {
  color-scheme: light;
  --bg: #f3f5f8;
  --paper: #ffffff;
  --paper-soft: #eceff4;
  --ink: #16181d;
  --text: #333943;
  --muted: #4a5460;
  --faint: #5b6572;
  --line: #e0e5ec;
  --line-strong: #bcc6d2;
  --accent: #bd362a;
  --accent-soft: #fbe9e6;
  --accent-strong: #9c2b21;
  --accent-border: rgba(189, 54, 42, 0.32);
  --paper-veil: rgba(255, 255, 255, 0.6);
  --page-glow: rgba(255, 255, 255, 0.85);
  --topbar-bg: rgba(243, 245, 248, 0.85);
  --card-shadow: 0 1px 0 rgba(22, 24, 29, 0.04);
  --card-shadow-hover: 0 6px 20px rgba(22, 24, 29, 0.1);
  --brand-shadow: 0 8px 26px rgba(30, 41, 59, 0.09);
  --photo-filter: saturate(1.02);
  --texture-ink: rgba(30, 41, 59, 0.05);
  --texture-ink-soft: rgba(30, 41, 59, 0.032);
  --serif: "Songti SC", "Source Han Serif SC", "Noto Serif CJK SC", "SimSun",
    Georgia, serif;
  --max: 1160px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    linear-gradient(180deg, var(--page-glow), transparent 300px),
    var(--bg);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    radial-gradient(var(--texture-ink) 1px, transparent 1px),
    radial-gradient(var(--texture-ink-soft) 1px, transparent 1px);
  background-size: 22px 22px, 14px 14px;
  background-position: 0 0, 7px 7px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.32), transparent 76%);
}

a {
  color: inherit;
  text-decoration: none;
}

.ambient,
.signal-grid {
  display: none;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 62px;
  padding: 0 max(22px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid var(--line);
  background: var(--topbar-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
  color: var(--ink);
  font-size: 14px;
  font-weight: 720;
}

.brand-mark {
  display: grid;
  width: 31px;
  height: 31px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--paper);
  box-shadow: var(--brand-shadow);
  overflow: hidden;
}

.brand-mark img {
  display: block;
  width: 20px;
  height: 20px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 620;
}

.nav a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
}

.nav a:hover {
  color: var(--ink);
}

.shell {
  width: min(var(--max), calc(100% - 44px));
  margin: 0 auto;
  padding: 34px 0 44px;
}

.kicker,
.panel-title p {
  margin: 0;
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 10px;
  font-weight: 760;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.announcement {
  display: grid;
  grid-template-columns: 154px minmax(0, 1fr);
  gap: clamp(18px, 4vw, 54px);
  align-items: start;
  margin: 0 0 34px;
  padding: 0 0 24px;
  border-bottom: 1px solid var(--ink);
}

.announcement > div:first-child {
  position: sticky;
  top: 84px;
}

.announcement h2 {
  margin: 11px 0 0;
  color: var(--ink);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 740;
  line-height: 1.12;
  letter-spacing: 0;
}

.announcement-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 11px;
}

.announcement-meta,
.announcement-actions,
.announcement-route,
.announcement-info,
.announcement-fees,
.announcement-takeaways {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.announcement-date,
.announcement-tag,
.announcement-actions span,
.announcement-route span,
.announcement-info div,
.announcement-fees div,
.announcement-takeaways li {
  display: inline-flex;
  align-items: center;
  min-height: 27px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 9px;
  background: var(--paper-veil);
  color: var(--muted);
  font-size: 11px;
  font-weight: 620;
}

.announcement-date {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0.06em;
}

.announcement-actions {
  align-items: center;
  margin-top: 2px;
}

.announcement-link {
  display: inline-flex;
  align-items: center;
  min-height: 31px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 0 12px;
  background: var(--ink);
  color: var(--paper);
  font-size: 12px;
  font-weight: 700;
}

.announcement-link:hover {
  border-color: var(--accent);
  background: var(--accent);
}

.announcement-actions .announcement-price {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--paper);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.01em;
  padding: 0 14px;
  min-height: 32px;
}

.announcement-title {
  max-width: 720px;
  margin: 4px 0 0;
  color: var(--ink);
  font-size: clamp(20px, 2.4vw, 30px);
  font-weight: 750;
  line-height: 1.18;
  letter-spacing: 0;
}

.announcement-title span {
  display: block;
  margin-top: 9px;
  color: var(--accent);
  font-size: clamp(13px, 1.4vw, 17px);
  font-weight: 650;
  line-height: 1.4;
}

.announcement-lead,
.announcement-copy,
.announcement-compact p,
.announcement-note {
  max-width: 720px;
  margin: 0;
  color: var(--text);
  font-size: 15px;
  line-height: 1.78;
}

.announcement-copy,
.announcement-compact p,
.announcement-note {
  color: var(--muted);
  font-size: 13px;
}

.announcement-block {
  display: grid;
  gap: 8px;
  margin-top: 2px;
}

.announcement-block h3 {
  margin: 0;
  color: var(--ink);
  font-size: 12px;
  font-weight: 760;
}

.announcement-points {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.announcement-points li {
  padding-top: 8px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.62;
}

.announcement-points strong {
  display: block;
  margin-bottom: 4px;
  color: var(--ink);
  font-size: 14px;
}

.announcement-info div,
.announcement-fees div {
  display: grid;
  align-content: center;
  gap: 2px;
  min-height: 0;
  border-radius: 12px;
  padding: 7px 9px;
}

.announcement-info span,
.announcement-fees span,
.announcement-fees em {
  color: var(--faint);
  font-size: 10px;
  font-style: normal;
}

.announcement-info strong,
.announcement-fees strong {
  color: var(--ink);
  font-size: 12px;
  font-weight: 680;
  line-height: 1.35;
}

.announcement-quote {
  max-width: 680px;
  margin: 6px 0 0;
  padding: 0 0 0 13px;
  border: 0;
  border-left: 2px solid var(--accent);
  color: var(--ink);
  font-size: clamp(16px, 1.7vw, 20px);
  font-weight: 720;
  line-height: 1.48;
}

.announcement-expired {
  margin-top: 40px;
  opacity: 0.62;
}

.announcement-brief {
  margin-top: -18px;
  border-bottom-color: var(--line);
  padding-bottom: 14px;
}

.announcement-brief.announcement-expired {
  margin-top: 48px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.announcement-brief-body {
  min-width: 0;
}

.announcement-brief-link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 35px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--text);
}

.announcement-brief-link strong {
  overflow: hidden;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.announcement-brief-link > span:last-child {
  margin-left: auto;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.announcement-brief-link:hover strong {
  color: var(--accent);
}

.hero {
  display: block;
  padding: 0 0 18px;
  border-bottom: 1px solid var(--line);
}

/* hero 主标题：身份 + 一句话（页面唯一 H1） */
.hero .tagline {
  max-width: 780px;
  margin: 0;
  padding-left: 16px;
  border-left: 3px solid var(--accent);
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 650;
  line-height: 1.42;
  letter-spacing: 0;
}

.summary {
  max-width: 560px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.76;
}

.console {
  border-top: 1px solid var(--ink);
  color: var(--muted);
}

.console-head {
  display: none;
}

.console-body {
  display: grid;
  gap: 0;
  padding: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  line-height: 1.45;
}

.console-body p {
  margin: 0;
  padding: 7px 0;
  border-bottom: 1px solid var(--line);
}

.console-body span {
  color: var(--accent);
}

.tool-panel {
  display: grid;
  grid-template-columns: 154px minmax(0, 1fr);
  gap: clamp(18px, 4vw, 54px);
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.panel-title {
  display: grid;
  align-content: start;
  gap: 10px;
}

.panel-title h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 740;
  line-height: 1.12;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
}

.tool-card {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  min-height: 39px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  color: var(--text);
}

.tool-card:hover {
  color: var(--accent);
}

.tool-card.muted {
  color: var(--muted);
  cursor: default;
}

.tool-card .index,
.share-card span {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  font-weight: 680;
}

.tool-card strong {
  overflow: hidden;
  color: currentColor;
  font-size: 14px;
  font-weight: 620;
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tool-card-label {
  display: grid;
  min-width: 0;
  gap: 3px;
}

.tool-card-note {
  color: var(--accent);
  font-size: 10px;
  font-weight: 680;
  letter-spacing: 0.03em;
  line-height: 1.2;
}

.tool-card em {
  display: none;
}

.share-panel,
.message-panel {
  display: grid;
  grid-template-columns: 154px minmax(0, 1fr);
  gap: clamp(18px, 4vw, 54px);
  padding: 24px 0 0;
}

.share-copy,
.message-copy {
  display: grid;
  align-content: start;
  gap: 10px;
}

.share-copy h2,
.message-copy h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 740;
  line-height: 1.12;
}

.share-copy p:not(.kicker),
.message-copy p:not(.kicker) {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.68;
}

.share-slots {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--ink);
}

.share-card {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  color: var(--text);
}

.share-card:hover {
  color: var(--accent);
}

.share-card strong {
  color: currentColor;
  font-size: 16px;
  font-weight: 650;
  line-height: 1.35;
}

.share-card em {
  grid-column: 2;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  line-height: 1.6;
}

.download-panel {
  position: relative;
  align-items: stretch;
  margin-top: 8px;
  padding: 28px 0;
  border-top: 1px solid var(--accent);
  border-bottom: 1px solid var(--accent-border);
}

.download-panel::before {
  position: absolute;
  z-index: -1;
  top: 0;
  right: -22px;
  bottom: 0;
  left: -22px;
  background: linear-gradient(110deg, rgba(226, 232, 240, 0.72), rgba(255, 255, 255, 0.08) 72%);
  content: "";
}

.download-copy {
  align-content: center;
}

.download-copy h2 {
  max-width: 250px;
}

.download-copy p:not(.kicker) {
  max-width: 260px;
}

.download-note {
  display: inline-flex;
  width: fit-content;
  margin-top: 2px;
  padding: 5px 8px;
  border: 1px solid var(--accent-border);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 10px;
  font-weight: 720;
  letter-spacing: 0.03em;
}

.download-card {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  align-content: center;
  min-height: 174px;
  padding: 22px;
  border: 1px solid var(--ink);
  background: var(--ink);
  box-shadow: 0 10px 26px rgba(30, 41, 59, 0.14);
}

.download-card-index {
  padding-top: 3px;
  color: #e9a39c;
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 700;
}

.download-card-body {
  min-width: 0;
}

.download-card-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.download-card-heading strong {
  display: block;
  color: var(--paper);
  font-size: clamp(16px, 1.8vw, 20px);
  font-weight: 760;
  line-height: 1.25;
}

.download-version {
  display: inline-block;
  margin-top: 5px;
  color: #e9a39c;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.download-badge {
  flex: 0 0 auto;
  padding: 5px 7px;
  border: 1px solid rgba(251, 248, 241, 0.32);
  color: rgba(251, 248, 241, 0.82);
  font-size: 10px;
  font-weight: 700;
  white-space: nowrap;
}

.download-card-description {
  max-width: 480px;
  margin: 15px 0 0;
  color: rgba(251, 248, 241, 0.82);
  font-size: 13px;
  line-height: 1.6;
}

.download-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 17px;
}

.download-actions > span {
  color: rgba(251, 248, 241, 0.64);
  font-size: 11px;
}

.download-actions .announcement-link {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--paper);
}

.download-actions .announcement-link:hover {
  border-color: var(--paper);
  background: var(--paper);
  color: var(--ink);
}

.message-form {
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--ink);
  padding-top: 10px;
}

.message-form label {
  display: grid;
  gap: 6px;
}

.message-form label span,
.mosaic-preview span,
.message-trace span {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 10px;
  font-weight: 760;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.message-form input,
.message-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 10px 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 14px;
  line-height: 1.6;
  outline: none;
}

.message-form input {
  min-height: 40px;
}

.message-form textarea {
  min-height: 124px;
  resize: vertical;
}

.message-form input:focus,
.message-form textarea:focus {
  border-color: var(--ink);
}

.message-form input::placeholder,
.message-form textarea::placeholder {
  color: var(--faint);
}

.mosaic-preview,
.message-trace {
  display: grid;
  gap: 7px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.mosaic-preview p,
.message-trace p {
  min-height: 45px;
  margin: 0;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 12px;
  line-height: 1.7;
  word-break: break-all;
}

.message-trace p {
  color: var(--ink);
}

.message-status {
  min-height: 20px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 650;
}

.message-form button {
  justify-self: start;
  min-height: 34px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 0 14px;
  background: var(--ink);
  color: var(--paper);
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.message-form button:hover {
  border-color: var(--accent);
  background: var(--accent);
}

.message-form button:disabled {
  cursor: wait;
  opacity: 0.58;
}

.photo-panel {
  display: grid;
  grid-template-columns: 154px minmax(0, 1fr);
  gap: clamp(18px, 4vw, 54px);
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.photo-copy {
  display: grid;
  align-content: start;
  gap: 10px;
}

.photo-copy h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 740;
  line-height: 1.12;
}

.photo-copy p:not(.kicker) {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.68;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
  border-top: 1px solid var(--ink);
  padding-top: 14px;
}

.photo-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--paper-soft);
}

.photo-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.photo-card:hover img {
  transform: scale(1.04);
}

.photo-card figcaption {
  padding: 8px 11px 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.photo-card.is-empty {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  background: repeating-linear-gradient(
    45deg,
    var(--accent-soft) 0 9px,
    var(--paper-soft) 9px 18px
  );
}

.photo-card.is-empty span {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.photo-card.is-upcoming {
  aspect-ratio: 4 / 3;
  display: grid;
  align-content: center;
  gap: 6px;
  padding: 16px;
  text-align: center;
  border-color: var(--accent);
  background: var(--accent-soft);
}

.photo-card.is-upcoming .upcoming-tag {
  margin: 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 10px;
  font-weight: 760;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.photo-card.is-upcoming strong {
  color: var(--ink);
  font-size: 15px;
  font-weight: 720;
}

.photo-card.is-upcoming time {
  color: var(--muted);
  font-size: 12px;
}

.footer {
  width: min(var(--max), calc(100% - 44px));
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin: 0 auto;
  padding: 22px 0 34px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 12px;
}

.footer a {
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.footer a:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

@media (max-width: 900px) {
  .topbar {
    height: auto;
    min-height: 58px;
    padding: 0 18px;
  }

  .nav {
    gap: 10px;
    font-size: 12px;
  }

  .shell {
    width: min(100% - 28px, 720px);
    padding-top: 26px;
  }

  .announcement,
  .tool-panel,
  .share-panel,
  .photo-panel,
  .message-panel {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .announcement > div:first-child {
    position: static;
  }

  .announcement-brief {
    margin-top: -10px;
  }

  .announcement-brief-link {
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px 0;
  }

  .announcement-brief-link strong {
    flex: 1 1 100%;
    white-space: normal;
  }

  .announcement-brief-link > span:last-child {
    margin-left: 0;
  }

  .tool-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .announcement-points {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .brand span:last-child {
    display: none;
  }

  .shell,
  .footer {
    width: calc(100% - 24px);
  }

  .announcement-title {
    font-size: 24px;
  }

  .hero h1 {
    font-size: 25px;
  }

  .tool-grid {
    grid-template-columns: 1fr;
  }

  .tool-card strong {
    white-space: normal;
  }

  .download-panel {
    margin-top: 0;
    padding: 22px 0;
  }

  .download-panel::before {
    right: -12px;
    left: -12px;
  }

  .download-card {
    grid-template-columns: 1fr;
    gap: 8px;
    min-height: 0;
    padding: 17px;
  }

  .download-card-index {
    padding-top: 0;
  }

  .download-card-heading {
    flex-direction: column;
    gap: 8px;
  }

  .download-card-description {
    margin-top: 11px;
  }

  .footer {
    flex-direction: column;
  }
}

/* ==========================================================================
   东方书卷 · 主题层
   衬线标题、朱砂印色、纸片卡片、方角。颜色一律走 :root 变量，
   深色模式只需覆盖变量，见文件末尾 prefers-color-scheme 块。
   ========================================================================== */

.announcement h2,
.photo-copy h2,
.panel-title h2,
.announcement-title {
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.announcement-title {
  font-size: clamp(26px, 3.8vw, 44px);
  line-height: 1.24;
}

/* 副标题回到无衬线，和大标题拉开层次 */
.announcement-title span {
  font-family: Inter, ui-sans-serif, system-ui, "PingFang SC", sans-serif;
  letter-spacing: 0.02em;
}

/* 正文放宽行距，接近书籍排版 */
.announcement-lead,
.announcement-copy {
  font-size: 15px;
  line-height: 1.92;
  letter-spacing: 0.01em;
}

.kicker,
.panel-title p {
  letter-spacing: 0.22em;
}

/* 照片卡：薄纸片，方角微圆 */
.photo-card {
  border-radius: 3px;
  box-shadow: var(--card-shadow);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.photo-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--card-shadow-hover);
}

.photo-card img {
  filter: var(--photo-filter);
  transition: transform 0.4s ease, filter 0.3s ease;
}

.photo-card:hover img {
  filter: none;
}

/* 工具目录保持列表行形态，仅序号改衬线 */
.tool-card .index {
  font-family: var(--serif);
  font-size: 12px;
  font-weight: 700;
}

/* 印章式按钮与标签：收成方角 */
.announcement-link,
.announcement-actions .announcement-price,
.announcement-date,
.announcement-tag,
.announcement-actions span,
.announcement-route span,
.announcement-info div,
.announcement-fees div {
  border-radius: 2px;
}

.announcement-link {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
  font-weight: 760;
  letter-spacing: 0.08em;
}

.announcement-link:hover {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.announcement-actions .announcement-price {
  background: var(--accent-soft);
  border-color: var(--accent-border);
  color: var(--accent);
  font-weight: 760;
}

.brand-mark {
  border-radius: 3px;
}

/* ==========================================================================
   默认浅色主题（书卷风）。已关闭跟随系统的深色模式覆盖，
   如需恢复夜读模式，请把下面这段重新加回即可。
   ========================================================================== */

/* AdSense 首屏横幅 */
/* AdSense 首屏横幅：仅「请求中」阶段预留高度防抖动；Google 判定未填充即整体收起，绝不留空白块 */
.ad-banner {
  margin: 24px 0;
}
.ad-banner[hidden] {
  display: none !important;
}
.ad-banner ins.adsbygoogle {
  border-radius: 12px;
  overflow: hidden;
}
/* 广告位只在「已填充」时才占高度和外边距：站点未过审、或没有可投放广告时，首屏不留空白。
   不能用 display:none 收起容器（AdSense 要读容器宽度），所以只清零高度和边距。 */
.ad-banner:not(:has(ins.adsbygoogle[data-ad-status="filled"])) {
  margin: 0;
}
.ad-banner ins.adsbygoogle:not([data-ad-status]) {
  min-height: 0;
}
.ad-banner ins.adsbygoogle[data-ad-status="unfilled"] {
  display: none !important;
}

.forum-intro {
  max-width: 560px;
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

/* AI 论坛唯一入口：与论坛首页深色介绍区同源的横幅卡 */
.forum-entry {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 30px 34px;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: 18px;
  background:
    radial-gradient(circle at 90% 0%, rgba(176, 56, 46, 0.55), transparent 45%),
    radial-gradient(rgba(255, 253, 248, 0.07) 1px, transparent 1px) 0 0 / 20px 20px,
    var(--ink);
  color: #f5f0e6;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.forum-entry:hover {
  color: #f5f0e6;
  transform: translateY(-2px);
  box-shadow: 0 18px 36px -20px rgba(27, 24, 21, 0.55);
}
.forum-entry-text { min-width: 0; }
.forum-entry-kicker {
  color: #f0a79f;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
}
.forum-entry-text strong {
  display: block;
  margin: 10px 0 8px;
  color: #fffdf8;
  font-family: var(--serif);
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 700;
  line-height: 1.35;
}
.forum-entry-desc {
  display: block;
  max-width: 52ch;
  color: rgba(245, 240, 230, 0.72);
  font-size: 13.5px;
  line-height: 1.75;
}
.forum-entry-cta {
  flex: none;
  padding: 11px 22px;
  border: 1px solid rgba(255, 253, 248, 0.35);
  border-radius: 999px;
  color: #fffdf8;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.forum-entry:hover .forum-entry-cta {
  border-color: #fffdf8;
  background: #fffdf8;
  color: var(--ink);
}
@media (max-width: 680px) {
  .forum-entry {
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 22px;
  }
}


/* ---------------------------------------------------------------------
 * 客户案例（CLIENT WORK）：首页单入口卡片，详细陈列在 /cases/
 * ------------------------------------------------------------------ */

.case-body { display: flex; flex-direction: column; }

.case-entry {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 28px;
  border: 1px solid var(--ink);
  border-radius: 16px;
  background: var(--paper);
  color: var(--text);
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.case-entry::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--accent), var(--accent-strong));
}
.case-entry:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px -20px rgba(27, 24, 21, 0.4);
  color: var(--text);
  text-decoration: none;
}
.case-entry-text { min-width: 0; }
.case-entry-text strong {
  display: block;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 700;
  line-height: 1.4;
}
.case-entry:hover .case-entry-text strong { color: var(--accent); }
.case-entry-sub {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.7;
}
.case-entry-cta {
  flex: none;
  padding: 10px 20px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease;
}
.case-entry:hover .case-entry-cta { background: var(--ink); color: var(--paper); }

@media (max-width: 680px) {
  .case-entry { flex-direction: column; align-items: flex-start; gap: 16px; padding: 20px 22px; }
}

/* ---------------------------------------------------------------------
 * AI 视觉提升（2026-10-16）：格局不变，只加氛围与极客细节
 * ------------------------------------------------------------------ */

/* 背景氛围：两团极淡的暖红 + 紫光缓慢漂移（原先预留的 .ambient 层启用） */
.ambient {
  display: block;
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;
  overflow: hidden;
}
.ambient::before,
.ambient::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
}
.ambient::before {
  width: 620px;
  height: 620px;
  right: -180px;
  top: -220px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.13), transparent 65%);
  animation: hd-drift-a 26s ease-in-out infinite alternate;
}
.ambient::after {
  width: 540px;
  height: 540px;
  left: -200px;
  top: 32%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.1), transparent 65%);
  animation: hd-drift-b 34s ease-in-out infinite alternate;
}
@keyframes hd-drift-a { to { transform: translate(-70px, 60px); } }
@keyframes hd-drift-b { to { transform: translate(60px, -50px); } }

/* hero：注释风 kicker + 闪烁光标 */
.hero-kicker {
  margin: 0 0 12px;
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.hero-kicker::before { content: "// "; color: var(--faint); }
.hero .tagline .caret {
  display: inline-block;
  width: 0.14em;
  height: 0.98em;
  margin-left: 7px;
  background: var(--accent);
  vertical-align: -0.1em;
  animation: hd-blink 1.1s steps(1) infinite;
}
@keyframes hd-blink { 50% { opacity: 0; } }

/* 所有区段 kicker 统一注释风 */
.panel-title p::before,
.photo-copy .kicker::before { content: "// "; color: var(--faint); }

/* 顶栏品牌：在线呼吸灯 */
.brand-mark { position: relative; overflow: visible; }
.brand-mark::after {
  content: "";
  position: absolute;
  right: -3px;
  top: -3px;
  width: 8px;
  height: 8px;
  border: 2px solid var(--bg);
  border-radius: 50%;
  background: #3f9d6e;
  animation: hd-pulse 2.4s ease-in-out infinite;
}
@keyframes hd-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(63, 157, 110, 0.45); }
  50% { box-shadow: 0 0 0 5px rgba(63, 157, 110, 0); }
}

/* 导航：下划线滑入 */
.nav a { position: relative; }
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.18s ease;
}
.nav a:hover::after { transform: scaleX(1); }

/* 工具卡：悬停时序号发光 */
.tool-card { transition: padding-left 0.15s ease; }
.tool-card:hover { padding-left: 4px; }
.tool-card:hover .index { text-shadow: 0 0 12px rgba(168, 50, 42, 0.5); }

/* 照片卡：悬停浮起 + 阴影（图片缩放原有） */
.photo-card { transition: transform 0.18s ease, box-shadow 0.18s ease; }
.photo-card:hover { transform: translateY(-3px); box-shadow: var(--card-shadow-hover); }

/* 页脚系统状态行 */
.footer .sys {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
}
.footer .sys::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #3f9d6e;
  animation: hd-pulse 2.4s ease-in-out infinite;
}

/* 选中与焦点 */
::selection { background: var(--accent-soft); color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

@media (prefers-reduced-motion: reduce) {
  .ambient::before,
  .ambient::after,
  .hero .tagline .caret,
  .brand-mark::after,
  .footer .sys::before { animation: none; }
}

.case-body .case-entry + .case-entry { margin-top: 12px; }

/* 首屏：一句话说明 + 行动入口 */
.hero-sub {
  margin: 18px 0 0;
  max-width: 620px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.hero-btn {
  display: inline-flex;
  align-items: center;
  padding: 11px 22px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  font-size: 14.5px;
  font-weight: 700;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}
.hero-btn:hover { background: var(--ink); color: var(--paper); transform: translateY(-1px); text-decoration: none; }
.hero-btn.is-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.hero-btn.is-primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); }


/* ---------------------------------------------------------------------
 * 手机端：点击区域（≥44px 是手指能稳定点中的下限）与小字号
 * 只在窄屏生效，桌面排版不变。
 * ------------------------------------------------------------------ */
@media (max-width: 680px) {
  .nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 10px; }
  .brand { min-height: 44px; }
  .footer a { display: inline-block; padding: 12px 6px; }
  .footer { row-gap: 2px; }
  .tool-card, .case-entry, .forum-entry { min-height: 44px; }
  .plugin-text-link { display: inline-flex; align-items: center; min-height: 44px; }
  .download-local-nav a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 10px; }
  .photo-more-btn { min-height: 44px; }
  details > summary { display: flex; align-items: center; min-height: 44px; }
  .hero-btn { min-height: 46px; }
  /* 说明性小字不低于 12px */
  .hero-kicker, .kicker, .panel-title p { font-size: 11px; }
  .plugin-version, .index { font-size: 12px; }
}

/* 窄屏导航五项一行放得下：收紧内边距（≥44px 高度保持不变） */
@media (max-width: 400px) {
  .nav a { padding: 0 7px; }
  .nav { gap: 0; }
}