.tutorial-hub-page {
  --tutorial-ink: #0b1424;
  --tutorial-muted: #627086;
  --tutorial-line: #d9e1ec;
  --tutorial-soft: #f5f8fc;
  --tutorial-blue: #145cf5;
  --tutorial-green: #079a69;
  --tutorial-orange: #f7931a;
  background: #fbfcfe;
  color: var(--tutorial-ink);
}

.tutorial-hub-page .site-header {
  background: #ffffff;
}

.tutorial-header-member {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--tutorial-line);
  border-radius: 6px;
  color: #344158;
  font-size: 13px;
  font-weight: 760;
  text-decoration: none;
}

.tutorial-header-member:hover,
.tutorial-header-member:focus-visible { border-color: #a9bff0; color: var(--tutorial-blue); }

.tutorial-hub {
  width: min(1440px, calc(100% - 48px));
  margin: 0 auto;
  padding: 38px 0 54px;
}

.tutorial-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 590px);
  gap: 48px;
  align-items: end;
  margin-bottom: 22px;
}

.tutorial-eyebrow {
  margin: 0 0 8px;
  color: var(--tutorial-blue) !important;
  font-size: 11px !important;
  font-weight: 900;
  text-transform: uppercase;
}

.tutorial-intro h1 {
  margin: 0;
  font-size: clamp(34px, 4vw, 48px);
  line-height: 1.1;
  letter-spacing: 0;
}

.tutorial-intro > div > p:last-child {
  margin: 10px 0 0;
  color: var(--tutorial-muted);
  font-size: 15px;
}

.tutorial-search {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 112px;
  height: 52px;
  overflow: hidden;
  border: 1px solid #becadd;
  border-radius: 7px;
  background: #ffffff;
  box-shadow: 0 7px 24px rgba(20, 45, 90, 0.05);
}

.tutorial-search input {
  min-width: 0;
  border: 0;
  outline: 0;
  padding: 0 17px;
  color: var(--tutorial-ink);
  background: transparent;
}

.tutorial-search input::placeholder {
  color: #7c899b;
}

.tutorial-search button,
.tutorial-primary-button {
  border: 0;
  background: var(--tutorial-blue);
  color: #ffffff;
  font-weight: 850;
  cursor: pointer;
}

.tutorial-modebar {
  display: flex;
  align-items: center;
  min-height: 62px;
  padding: 8px;
  margin-bottom: 18px;
  border: 1px solid var(--tutorial-line);
  border-radius: 7px;
  background: #ffffff;
}

.tutorial-mode {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 6px;
  color: #49566a;
  font-weight: 850;
  text-decoration: none;
}

.tutorial-mode:hover,
.tutorial-mode:focus-visible {
  color: var(--tutorial-blue);
}

.tutorial-mode.is-active {
  background: var(--tutorial-blue);
  color: #ffffff;
}

.tutorial-mode span {
  padding: 3px 6px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.2);
  font-size: 11px;
}

.tutorial-mode:not(.is-active) span {
  background: var(--tutorial-soft);
}

.tutorial-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.tutorial-topics button {
  min-height: 36px;
  padding: 0 13px;
  border: 1px solid #ccd6e5;
  border-radius: 5px;
  background: #ffffff;
  color: #536075;
  font-size: 12px;
  font-weight: 760;
  cursor: pointer;
}

.tutorial-topics button:hover,
.tutorial-topics button:focus-visible,
.tutorial-topics button.is-active {
  border-color: #a9bff0;
  background: #f3f7ff;
  color: var(--tutorial-blue);
}

.tutorial-paths {
  margin-bottom: 22px;
  padding: 22px;
  border: 1px solid var(--tutorial-line);
  border-radius: 8px;
  background: #ffffff;
}

.tutorial-section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 18px;
}

.tutorial-section-heading p,
.tutorial-article-heading p {
  margin: 0 0 5px;
  color: var(--tutorial-blue);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .11em;
}

.tutorial-section-heading h2,
.tutorial-article-heading h2 { margin: 0; font-size: 24px; line-height: 1.25; }

.tutorial-local-progress { width: min(260px, 34vw); }
.tutorial-local-progress > span,
.tutorial-local-progress > strong { display: block; font-size: 12px; }
.tutorial-local-progress > span { color: var(--tutorial-muted); }
.tutorial-local-progress > strong { margin-top: 3px; text-align: right; }
.tutorial-local-progress i { display: block; height: 5px; margin-top: 8px; overflow: hidden; border-radius: 999px; background: #e4eaf2; }
.tutorial-local-progress b { display: block; width: 0; height: 100%; border-radius: inherit; background: var(--tutorial-green); transition: width 180ms ease; }

.tutorial-path-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.tutorial-path-card {
  position: relative;
  min-height: 224px;
  padding: 20px;
  border: 1px solid #d9e3ef;
  border-radius: 7px;
  background: #fbfcfe;
  color: inherit;
  text-decoration: none;
}
.tutorial-path-card:hover,
.tutorial-path-card:focus-visible { border-color: #9fb8df; box-shadow: 0 10px 24px rgba(27, 59, 104, .08); }
.tutorial-path-card.is-blue { background: #f5f8ff; }
.tutorial-path-card.is-green { background: #f4fbf8; }
.tutorial-path-number { position: absolute; right: 18px; top: 16px; color: #c8d2df; font-size: 28px; font-weight: 900; }
.tutorial-path-card small { color: var(--tutorial-blue); font-size: 12px; font-weight: 800; }
.tutorial-path-card h3 { margin: 22px 44px 9px 0; font-size: 18px; line-height: 1.4; }
.tutorial-path-card p { margin: 0; color: var(--tutorial-muted); font-size: 13px; line-height: 1.7; }
.tutorial-path-card em { display: block; margin-top: 17px; color: var(--tutorial-blue); font-size: 13px; font-style: normal; font-weight: 800; }
.tutorial-path-card[data-completed="true"]::after { content: "已完成"; position: absolute; right: 17px; bottom: 17px; color: var(--tutorial-green); font-size: 12px; font-weight: 800; }
.tutorial-path-note { margin: 14px 0 0; color: var(--tutorial-muted); font-size: 12px; }

.tutorial-hub-page .tutorial-layout {
  display: grid;
  grid-template-columns: minmax(0, 2.18fr) minmax(320px, 0.82fr);
  gap: 18px;
  align-items: start;
  padding-top: 0;
  border-top: 0;
}

.tutorial-main-column,
.tutorial-side-column {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.tutorial-feature,
.tutorial-articles,
.tutorial-course-panel,
.tutorial-other-courses,
.tutorial-access-flow {
  overflow: hidden;
  border: 1px solid var(--tutorial-line);
  border-radius: 7px;
  background: #ffffff;
}

.tutorial-feature {
  display: grid;
  grid-template-columns: 1.03fr 1fr;
  min-height: 304px;
}

.tutorial-feature-visual {
  position: relative;
  min-height: 304px;
  overflow: hidden;
  padding: 24px;
  background-color: #122745;
  background-image: linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 42px 42px;
}

.tutorial-feature-visual > span {
  position: relative;
  z-index: 2;
  color: #9cb9e6;
  font-size: 11px;
  font-weight: 850;
}

.chart-line {
  position: absolute;
  left: -4%;
  width: 112%;
  height: 3px;
  transform: rotate(-7deg);
  background: #1d6cff;
  box-shadow: 0 0 18px rgba(29, 108, 255, 0.3);
}

.chart-line-one { top: 46%; }
.chart-line-two { top: 64%; background: #17ba81; transform: rotate(-9deg); }
.chart-line-three { top: 79%; background: #17ba81; transform: rotate(-7deg); }

.tutorial-feature-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 30px;
}

.tutorial-free-label,
.tutorial-free-tag {
  display: inline-flex;
  align-items: center;
  width: max-content;
  border-radius: 4px;
  background: #e9f8f2;
  color: var(--tutorial-green);
  font-size: 11px;
  font-weight: 900;
}

.tutorial-free-label { padding: 5px 8px; }
.tutorial-free-label::before { content: ""; width: 6px; height: 6px; margin-right: 6px; border-radius: 50%; background: currentColor; }

.tutorial-feature-copy h2 {
  margin: 16px 0 10px;
  font-size: clamp(23px, 2.1vw, 29px);
  line-height: 1.3;
}

.tutorial-feature-copy > p {
  margin: 0;
  color: var(--tutorial-muted);
  font-size: 13px;
  line-height: 1.75;
}

.tutorial-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 15px;
  color: #7a8799;
  font-size: 11px;
}

.tutorial-primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  margin-top: 20px;
  padding: 0 20px;
  border-radius: 6px;
  text-decoration: none;
}

.tutorial-primary-button:hover,
.tutorial-primary-button:focus-visible,
.tutorial-search button:hover,
.tutorial-search button:focus-visible {
  background: #064bd8;
}

.tutorial-article-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 72px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--tutorial-line);
}

.tutorial-article-heading > div:last-child { display: flex; align-items: center; gap: 10px; }
.tutorial-article-heading span { color: var(--tutorial-muted); font-size: 12px; }
.tutorial-article-heading button {
  min-height: 32px;
  padding: 0 10px;
  border: 1px solid var(--tutorial-line);
  border-radius: 5px;
  background: transparent;
  color: var(--tutorial-blue);
  font-size: 12px;
  font-weight: 750;
  cursor: pointer;
}

.tutorial-article-row {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr) 90px 64px 22px;
  gap: 15px;
  align-items: center;
  min-height: 94px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--tutorial-line);
  color: inherit;
  text-decoration: none;
}

.tutorial-article-row:last-child { border-bottom: 0; }
.tutorial-article-row[href]:hover,
.tutorial-article-row[href]:focus-visible { outline: 0; background: #f8faff; box-shadow: inset 3px 0 var(--tutorial-blue); }
.tutorial-article-row[hidden] { display: none; }

.tutorial-cover {
  display: grid;
  place-items: center;
  width: 88px;
  height: 62px;
  border-radius: 5px;
  background: #eaf0f8;
  color: #23436f;
  font-size: 13px;
  font-weight: 900;
}

.tutorial-cover-dark { background: #142a49; color: #ffffff; }
.tutorial-cover-blue { background: #e8f2ff; color: #1455b8; }
.tutorial-cover-image { background-position: center; background-size: cover; color: transparent; }
.tutorial-cover-green { background: #143f39; color: #ffffff; }
.tutorial-cover-orange { background: #553719; color: #ffffff; }

.tutorial-article-copy { min-width: 0; }
.tutorial-article-copy strong { display: block; margin-bottom: 5px; font-size: 14px; line-height: 1.45; }
.tutorial-article-copy small { display: block; color: var(--tutorial-muted); font-size: 12px; line-height: 1.55; }
.tutorial-article-copy em { display: block; margin-top: 6px; color: #7c899b; font-size: 12px; font-style: normal; }
.tutorial-free-tag, .tutorial-upcoming-tag { justify-self: start; padding: 5px 8px; }
.tutorial-upcoming-tag { border-radius: 4px; background: #fff1de; color: #9d5a00; font-size: 12px; font-weight: 850; }
.tutorial-duration { color: var(--tutorial-muted); font-size: 12px; }
.tutorial-row-arrow { color: var(--tutorial-blue); font-size: 18px; }
.tutorial-empty { margin: 0; padding: 38px 18px; color: var(--tutorial-muted); text-align: center; }

.tutorial-side-column { scroll-margin-top: 96px; }

.tutorial-course-panel {
  border-color: #c8d5ea;
  box-shadow: 0 12px 34px rgba(30, 65, 120, 0.08);
}

.tutorial-course-preview {
  padding: 18px;
  border-bottom: 1px solid var(--tutorial-line);
}

.tutorial-course-preview > span {
  display: inline-flex;
  padding: 5px 8px;
  border-radius: 4px;
  background: #fff1de;
  color: #9d5a00;
  font-size: 11px;
  font-weight: 900;
}

.tutorial-video-art {
  position: relative;
  display: grid;
  place-items: center;
  height: 155px;
  margin-top: 14px;
  overflow: hidden;
  border-radius: 6px;
  background-color: #0f2240;
  background-image: repeating-linear-gradient(90deg, transparent 0 17px, rgba(72, 149, 255, 0.22) 18px 19px);
}

.tutorial-video-art i {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #ffffff;
  color: var(--tutorial-blue);
  font-style: normal;
}

.tutorial-course-body { padding: 20px; }
.tutorial-course-body h2 { margin: 0 0 8px; font-size: 22px; line-height: 1.3; }
.tutorial-course-body > p { margin: 0; color: var(--tutorial-muted); font-size: 12px; line-height: 1.65; }

.tutorial-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 17px 0;
  border: 1px solid var(--tutorial-line);
  border-radius: 5px;
}
.tutorial-stats.is-empty { grid-template-columns: repeat(2, 1fr); }

.tutorial-stats span { padding: 10px; border-right: 1px solid var(--tutorial-line); text-align: center; }
.tutorial-stats span:last-child { border-right: 0; }
.tutorial-stats strong, .tutorial-stats small { display: block; }
.tutorial-stats strong { font-size: 15px; }
.tutorial-stats small { margin-top: 2px; color: var(--tutorial-muted); font-size: 11px; }

.tutorial-access {
  padding: 15px 0 0;
  border-top: 1px solid var(--tutorial-line);
}

.tutorial-access > strong { font-size: 12px; }
.tutorial-access > p { margin: 5px 0 11px; color: var(--tutorial-muted); font-size: 12px; line-height: 1.55; }
.tutorial-google-button, .tutorial-community-button { display: flex; align-items: center; justify-content: center; width: 100%; min-height: 42px; border-radius: 5px; font-weight: 850; text-decoration: none; cursor: pointer; }
.tutorial-google-button { border: 1px solid #c7d1df; background: #ffffff; color: #273348; }
.tutorial-google-button b { display: inline-grid; place-items: center; width: 20px; height: 20px; margin-right: 8px; color: #4285f4; font-size: 15px; }
.tutorial-community-button { min-height: 40px; margin-top: 8px; background: var(--tutorial-blue); color: #ffffff; }
.tutorial-access > small { display: block; margin-top: 8px; color: var(--tutorial-muted); font-size: 11px; text-align: center; }
.tutorial-course-note { margin: 0; padding: 13px 18px; border-top: 1px solid var(--tutorial-line); color: var(--tutorial-muted); font-size: 12px; line-height: 1.55; }

.tutorial-other-courses, .tutorial-access-flow { padding: 17px; }
.tutorial-other-courses header { display: flex; align-items: center; justify-content: space-between; min-height: 34px; border-bottom: 1px solid var(--tutorial-line); }
.tutorial-other-courses h2, .tutorial-access-flow h2 { margin: 0; font-size: 15px; }
.tutorial-other-courses header span { color: var(--tutorial-muted); font-size: 11px; }
.tutorial-other-courses article { display: grid; grid-template-columns: 48px minmax(0, 1fr) auto; gap: 11px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--tutorial-line); }
.tutorial-other-courses article:last-child { border-bottom: 0; }
.tutorial-course-icon { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 6px; background: #eaf1ff; color: var(--tutorial-blue); font-weight: 900; }
.tutorial-course-icon.is-green { background: #e9f8f2; color: var(--tutorial-green); }
.tutorial-course-icon.is-orange { background: #fff1de; color: #a55b00; }
.tutorial-other-courses article strong { display: block; font-size: 12px; line-height: 1.4; }
.tutorial-other-courses article small { display: block; margin-top: 3px; color: var(--tutorial-muted); font-size: 11px; }
.tutorial-other-courses article em { padding: 5px 7px; border-radius: 4px; background: #f0f3f7; color: #617087; font-size: 11px; font-style: normal; font-weight: 800; }
.tutorial-other-courses a { color: inherit; text-decoration: none; }
.tutorial-course-empty { margin: 0; padding: 20px 0 5px; color: var(--tutorial-muted); font-size: 12px; line-height: 1.6; }

.tutorial-access-flow ol { display: grid; gap: 11px; margin: 14px 0 0; padding: 0; list-style: none; counter-reset: access-step; }
.tutorial-access-flow li { position: relative; min-height: 20px; padding-left: 29px; color: var(--tutorial-muted); font-size: 12px; line-height: 1.55; counter-increment: access-step; }
.tutorial-access-flow li::before { content: counter(access-step); position: absolute; left: 0; top: 0; display: grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; background: #e9f8f2; color: var(--tutorial-green); font-size: 10px; font-weight: 900; }

.tutorial-toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 1000;
  max-width: min(390px, calc(100% - 48px));
  padding: 13px 16px;
  border: 1px solid #b9c9e8;
  border-radius: 6px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(20, 45, 90, 0.18);
  color: #273348;
  font-size: 13px;
  font-weight: 700;
}

@media (max-width: 1120px) {
  .tutorial-hub { width: min(100% - 32px, 1040px); }
  .tutorial-intro { grid-template-columns: 1fr; gap: 20px; }
  .tutorial-hub-page .tutorial-layout { grid-template-columns: 1fr; }
  .tutorial-side-column { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 0.8fr); }
  .tutorial-course-panel { grid-row: span 2; }
  .tutorial-path-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .tutorial-hub { width: min(100% - 24px, 680px); padding-top: 25px; }
  .tutorial-intro h1 { font-size: 36px; }
  .tutorial-search { grid-template-columns: 1fr 92px; }
  .tutorial-modebar { overflow-x: auto; }
  .tutorial-mode { flex: 0 0 auto; padding: 0 15px; }
  .tutorial-feature { grid-template-columns: 1fr; }
  .tutorial-feature-visual { min-height: 210px; }
  .tutorial-feature-copy { padding: 24px; }
  .tutorial-path-grid { grid-template-columns: 1fr; }
  .tutorial-article-row { grid-template-columns: 64px minmax(0, 1fr) auto; gap: 12px; }
  .tutorial-cover { width: 64px; height: 56px; font-size: 11px; }
  .tutorial-free-tag, .tutorial-upcoming-tag { grid-column: 2; }
  .tutorial-duration { grid-column: 2; }
  .tutorial-row-arrow { grid-column: 3; grid-row: 1 / span 3; }
  .tutorial-side-column { display: flex; }
}

@media (max-width: 480px) {
  .tutorial-hub { width: min(100% - 20px, 440px); }
  .tutorial-intro { gap: 16px; }
  .tutorial-intro > div > p:last-child { font-size: 13px; line-height: 1.6; }
  .tutorial-search { grid-template-columns: 1fr; height: auto; }
  .tutorial-search input { min-height: 48px; }
  .tutorial-search button { min-height: 42px; }
  .tutorial-topics { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; }
  .tutorial-topics button { flex: 0 0 auto; }
  .tutorial-section-heading { align-items: flex-start; flex-direction: column; }
  .tutorial-local-progress { width: 100%; }
  .tutorial-local-progress > strong { text-align: left; }
  .tutorial-paths { padding: 16px; }
  .tutorial-path-card { min-height: 0; }
  .tutorial-feature-visual { min-height: 170px; }
  .tutorial-feature-copy h2 { font-size: 22px; }
  .tutorial-article-row { padding: 13px 12px; }
  .tutorial-article-copy small { display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
  .tutorial-article-heading { align-items: flex-start; flex-direction: column; }
  .tutorial-course-body { padding: 17px; }
}