* {
  box-sizing: border-box;
}
body {
  margin: 0;
  background: #f3f7fb;
  color: #24354d;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
}
a {
  color: inherit;
  text-decoration: none;
}
img {
  max-width: 100%;
  display: block;
}
.shell {
  width: 100%;
  min-height: 100vh;
}
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(228, 237, 247, 0.98);
}
.topbar__inner,
.main,
.footer {
  width: min(100% - 20px, 430px);
  margin: 0 auto;
}
.topbar__inner {
  padding: 12px 0 8px;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 12px;
}
.brand-mark {
  display: block;
  width: 124px;
  height: 34px;
}
.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.topbar-search {
  min-width: 0;
  height: 40px;
  border: 1px solid #e3ebf5;
  border-radius: 999px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  overflow: hidden;
}
.topbar-search__field {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 0 0 12px;
  color: #8a98ab;
}
.topbar-search__icon {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: #eef4ff;
  color: #2563eb;
  font-size: 10px;
  line-height: 1;
  font-weight: 700;
}
.topbar-search__input {
  min-width: 0;
  width: 100%;
  padding: 0;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: 13px;
  line-height: 18px;
  color: #1e293b;
}
.topbar-search__input::placeholder {
  color: #8a98ab;
}
.topbar-search__submit {
  height: 100%;
  padding: 0 14px;
  border: 0;
  background: linear-gradient(135deg, #2f6df6 0%, #4d8bff 100%);
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
}
.primary-nav {
  display: flex;
  gap: 16px;
  grid-template-columns: none;
  padding: 0 0 8px;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}
.primary-nav::-webkit-scrollbar {
  display: none;
}
.primary-nav a {
  position: relative;
  flex: 0 0 auto;
  font-size: 14px;
  line-height: 22px;
  font-weight: 600;
  color: #64748b;
  padding: 0 0 8px;
  background: transparent;
}
.primary-nav a.is-active {
  color: #2563eb;
  background: transparent;
}
.primary-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  border-radius: 999px;
  background: #2563eb;
}
.main {
  padding: 8px 0 28px;
}
.seo-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.crumb {
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 7px;
  color: #7f8ea3;
  font-size: 13px;
}
.section {
  margin-bottom: 14px;
  padding: 16px;
  border: 1px solid #e8eef7;
  border-radius: 16px;
  background: #ffffff;
}
.section--flat {
  padding: 0;
  overflow: hidden;
}
.section-head {
  margin-bottom: 12px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.section-head > div {
  flex: 1;
  min-width: 0;
}
.section-head > a {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  min-width: 48px;
  height: 28px;
  padding: 0 11px;
  box-sizing: border-box;
  border-radius: 999px;
  background: #edf4ff;
  color: #4285f4;
  font-size: 13px;
  line-height: 28px;
  word-break: keep-all;
  white-space: nowrap;
}
.section-head h3,
.daily-panel h3,
.term-tool h3 {
  margin: 0;
  font-size: 19px;
  line-height: 27px;
  color: #24354d;
}
.section-head p,
.daily-panel__desc,
.term-tool p {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 21px;
  color: #7f8ea3;
}
.hero-slide {
  position: relative;
  display: block;
  min-height: 170px;
  padding: 18px;
  color: #ffffff;
  background: linear-gradient(135deg, #2d6ff0, #31b6c7);
}
.hero-slider__track {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
}
.hero-slide {
  flex: 0 0 100%;
  scroll-snap-align: start;
}
.hero-slide > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 23, 36, 0.08), rgba(15, 23, 36, 0.72));
}
.hero-slide__content {
  position: relative;
  z-index: 2;
  padding-top: 50px;
}
.hero-slider__dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 10px;
  display: flex;
  justify-content: center;
  gap: 6px;
  pointer-events: none;
}
.hero-slider {
  position: relative;
}
.hero-slider__dots span {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.55);
}
.hero-slider__dots span.is-active {
  width: 18px;
  background: #ffffff;
}
.hero-slide__tag {
  display: inline-block;
  margin-bottom: 8px;
  font-size: 12px;
  opacity: 0.86;
}
.hero-slide h2 {
  margin: 0;
  font-size: 23px;
  line-height: 32px;
}
.hero-slide p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 22px;
  opacity: 0.9;
}
.daily-list,
.article-list,
.feed {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.daily-item,
.article-item,
.feed-card,
.timeline-card {
  display: flex;
  gap: 12px;
  padding: 12px;
  border-radius: 12px;
  background: #f8fbff;
  border: 1px solid #edf3fb;
}
.daily-time,
.timeline-card__time {
  flex: 0 0 auto;
  color: #4285f4;
  font-size: 13px;
  line-height: 22px;
  font-weight: 700;
}
.daily-item > span:last-child {
  flex: 1;
  min-width: 0;
  margin: 0;
  display: block;
}
.daily-item strong,
.article-item h2,
.timeline-card strong,
.feed-card h4 {
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 16px;
  line-height: 24px;
  color: #24354d;
}
.daily-item strong {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-line-clamp: unset;
}
.daily-item span,
.article-item p,
.timeline-card p,
.feed-card p {
  margin: 6px 0 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-size: 13px;
  line-height: 21px;
  color: #6f7f96;
}
.daily-item > span:last-child > span {
  display: none;
}
.term-tool__intro {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.term-tool__badge,
.article-detail__meta span {
  flex: 0 0 auto;
  height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  background: #edf4ff;
  color: #4285f4;
  font-size: 12px;
  line-height: 26px;
}
.term-search {
  margin-top: 12px;
  margin-bottom: 12px;
  display: flex;
  gap: 8px;
}
.term-search input {
  flex: 1;
  min-width: 0;
  height: 40px;
  padding: 0 12px;
  border: 1px solid #e1ebfb;
  border-radius: 999px;
  outline: 0;
  background: #ffffff;
}
.term-search button {
  flex: 0 0 auto;
  height: 40px;
  padding: 0 14px;
  border: 0;
  border-radius: 999px;
  background: #4285f4;
  color: #ffffff;
}
.chip-row,
.article-tags,
.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.article-tags {
  margin-top: 12px;
}
.term-tool .chip-row {
  margin-top: 10px;
}
.chip,
.article-tags a,
.related-links a {
  max-width: 100%;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  padding: 7px 10px;
  border-radius: 999px;
  background: #f4f7fb;
  color: #607089;
  font-size: 13px;
}
.term-examples {
  margin-top: 12px;
  display: grid;
  gap: 10px;
}
.term-example {
  padding: 12px;
  border-radius: 12px;
  background: #f8fbff;
}
.term-example strong,
.term-example span {
  display: block;
}
.term-example strong {
  font-size: 15px;
  line-height: 23px;
  color: #24354d;
}
.term-example span {
  margin-top: 5px;
  font-size: 13px;
  line-height: 21px;
  color: #6f7f96;
}
.article-item__meta,
.feed-card__meta {
  display: block;
  margin-bottom: 6px;
  color: #7f8ea3;
  font-size: 12px;
}
.article-item__thumb {
  width: 96px;
  height: 72px;
  border-radius: 8px;
  object-fit: cover;
  flex: 0 0 auto;
  background: #e8eef7;
}
.article-item__body {
  min-width: 0;
  flex: 1;
}
.article-item--noimage .article-item__body {
  width: 100%;
}
.filter-panel {
  overflow: hidden;
}
.filter-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
  white-space: nowrap;
  scrollbar-width: none;
}
.filter-tabs::-webkit-scrollbar {
  display: none;
}
.filter-chip {
  flex: 0 0 auto;
  max-width: 120px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  padding: 7px 11px;
  border-radius: 999px;
  background: #f4f7fb;
  color: #607089;
  font-size: 13px;
}
.filter-chip.is-active {
  background: #4285f4;
  color: #ffffff;
}
.timeline {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.timeline-date {
  margin-bottom: 10px;
  color: #24354d;
  font-weight: 800;
}
.timeline-entry {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.article-detail__head h2 {
  margin: 0;
  font-size: 23px;
  line-height: 33px;
}
.article-detail__meta {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.article-summary {
  margin-top: 12px;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid #e2ebfa;
  background: #f8fbff;
  color: #4c5d72;
  font-size: 14px;
  line-height: 24px;
}
.article-content {
  margin-top: 14px;
  color: #455569;
  font-size: 16px;
  line-height: 30px;
}
.article-content p {
  margin: 0 0 14px;
}
.article-content h2,
.article-content h3 {
  margin: 20px 0 10px;
  color: #24354d;
}
.article-source {
  margin-top: 12px;
  color: #7f8ea3;
  font-size: 13px;
  line-height: 21px;
  word-break: break-all;
}
.article-switch {
  margin-top: 14px;
  display: grid;
  gap: 8px;
}
.article-switch__item {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border: 1px solid #e7eef8;
  border-radius: 10px;
  background: #f8fbff;
  color: #607089;
}
.article-switch__item span {
  flex: 0 0 auto;
  color: #2563eb;
  font-size: 13px;
  font-weight: 700;
}
.article-switch__item strong {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  color: #24354d;
  font-size: 14px;
  font-weight: 500;
}
.featured-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.featured-card {
  display: block;
  overflow: hidden;
  border-radius: 12px;
  background: #f8fbff;
}
.featured-card__thumb {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #e8eef7;
}
.featured-card__title {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 58px;
  box-sizing: border-box;
  padding: 9px;
  font-size: 13px;
  line-height: 20px;
}
.feed-card__thumb {
  width: 92px;
  height: 66px;
  border-radius: 8px;
  object-fit: cover;
  flex: 0 0 auto;
}
.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.tool-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid #edf3fb;
  background: #f8fbff;
  min-width: 0;
}
.tool-card__head {
  display: flex;
  gap: 9px;
  min-width: 0;
}
.tool-card__icon {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 12px;
  font-weight: 800;
}
.tool-card__icon.is-blue { background: #4285f4; }
.tool-card__icon.is-cyan { background: #22a6b3; }
.tool-card__icon.is-green { background: #2fa66a; }
.tool-card__icon.is-indigo { background: #6473f3; }
.tool-card__icon.is-orange { background: #f59f32; }
.tool-card__icon.is-dark { background: #24354d; }
.tool-card__title {
  min-width: 0;
}
.tool-card__title strong,
.tool-card__title span {
  display: block;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.tool-card__title strong {
  font-size: 15px;
  line-height: 21px;
}
.tool-card__title span {
  margin-top: 2px;
  font-size: 12px;
  line-height: 18px;
  color: #7f8ea3;
}
.tool-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.tool-card__tags span {
  max-width: 100%;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  padding: 4px 7px;
  border-radius: 999px;
  background: #ffffff;
  color: #607089;
  font-size: 11px;
}
.tool-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-size: 12px;
}
.tool-card__meta em {
  font-style: normal;
  color: #7f8ea3;
}
.tool-card__meta b {
  color: #4285f4;
}
.topic-list,
.update-stream {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.topic-row {
  display: flex;
  gap: 12px;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid #edf3fb;
  background: #f8fbff;
}
.topic-row__thumb {
  width: 86px;
  height: 64px;
  border-radius: 8px;
  object-fit: cover;
  flex: 0 0 auto;
  background: #e8eef7;
}
.topic-row__body {
  min-width: 0;
}
.topic-row__body strong,
.topic-row__body span {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.topic-row__body strong {
  -webkit-line-clamp: 1;
  font-size: 15px;
  line-height: 23px;
}
.topic-row__body span {
  margin-top: 5px;
  -webkit-line-clamp: 2;
  color: #6f7f96;
  font-size: 13px;
  line-height: 20px;
}
.update-stream__col {
  padding: 12px;
  border-radius: 12px;
  background: #f8fbff;
}
.update-stream__title {
  display: block;
  margin-bottom: 8px;
  color: #4285f4;
  font-weight: 800;
  font-size: 14px;
}
.update-link {
  display: flex;
  gap: 10px;
  padding: 10px 0;
}
.update-link + .update-link {
  border-top: 1px solid #edf3fb;
}
.update-link time {
  flex: 0 0 38px;
  color: #7f8ea3;
  font-size: 12px;
  line-height: 20px;
}
.update-link div {
  min-width: 0;
}
.update-link strong,
.update-link span {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.update-link strong {
  -webkit-line-clamp: 1;
  font-size: 14px;
  line-height: 22px;
}
.update-link span {
  margin-top: 4px;
  -webkit-line-clamp: 2;
  color: #6f7f96;
  font-size: 12px;
  line-height: 19px;
}
.pager {
  margin-top: 14px;
  display: flex;
  justify-content: flex-start;
  flex-wrap: nowrap;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 2px;
  white-space: nowrap;
  scrollbar-width: none;
}
.pager::-webkit-scrollbar {
  display: none;
}
.pager a,
.pager span,
.yxxPage a,
.yxxPage span {
  flex: 0 0 auto;
  display: inline-flex;
  min-width: 30px;
  height: 30px;
  align-items: center;
  justify-content: center;
  padding: 0 9px;
  border-radius: 999px;
  background: #f4f7fb;
  color: #607089;
  font-size: 12px;
}
.footer {
  padding: 0 14px 18px;
}
.footer__card {
  padding: 16px;
  border-radius: 16px;
  background: #24354d;
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
  line-height: 22px;
}
.footer__links {
  margin-top: 8px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.footer__links a {
  color: #ffffff;
}
.footer__meta {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.62);
}
.footer__meta p {
  margin: 4px 0 0;
}