:root {
  --ink: #13201b;
  --muted: #5f6d66;
  --paper: #fbfaf6;
  --surface: #ffffff;
  --line: #d9ded8;
  --green: #2f6f5e;
  --green-dark: #18483c;
  --blue: #315c99;
  --coral: #c95632;
  --amber: #b88418;
  --mint: #e8f2ed;
  --sky: #e8eef8;
  --sand: #f6f0df;
  --shadow: 0 18px 50px rgba(30, 45, 39, 0.16);
  --radius: 8px;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

body.modal-open {
  overflow: hidden;
}

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

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 12px;
  z-index: 100;
  transform: translateY(-140%);
  background: var(--ink);
  color: white;
  padding: 8px 12px;
  border-radius: var(--radius);
}

.skip-link:focus {
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 64px;
  padding: 0 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
  color: white;
  background: rgba(18, 32, 27, 0.88);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  white-space: nowrap;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.12);
  letter-spacing: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.main-nav a {
  padding: 8px 10px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.14);
  color: white;
}

.hero {
  position: relative;
  min-height: min(720px, calc(100vh - 64px));
  display: grid;
  align-items: center;
  padding: 72px 0 58px;
  color: white;
  background:
    linear-gradient(90deg, rgba(17, 28, 24, 0.92), rgba(17, 28, 24, 0.62), rgba(17, 28, 24, 0.32));
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.08);
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--coral);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
}

.hero .eyebrow {
  color: #f7c36d;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(36px, 6vw, 72px);
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 19px;
  line-height: 1.35;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 680px;
  margin: 22px 0 28px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 18px;
}

.hero-search {
  display: flex;
  align-items: center;
  gap: 10px;
  width: min(760px, 100%);
}

.hero-search input {
  min-width: 0;
  flex: 1;
  height: 56px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: var(--radius);
  color: white;
  background: rgba(255, 255, 255, 0.12);
  outline: none;
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.16);
}

.hero-search input::placeholder {
  color: rgba(255, 255, 255, 0.68);
}

.hero-search input:focus {
  border-color: white;
  background: rgba(255, 255, 255, 0.17);
}

.hero-search button,
.primary-action,
.secondary-action {
  min-height: 48px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  padding: 0 18px;
  font-weight: 800;
}

.hero-search button {
  color: var(--ink);
  background: #f7c36d;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 160px));
  gap: 12px;
  margin-top: 28px;
}

.hero-stats div {
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.1);
}

.hero-stats strong {
  display: block;
  font-size: 28px;
  line-height: 1;
}

.hero-stats span {
  display: block;
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
}

.section {
  padding: 82px 0;
}

.section-tools,
.section-operate {
  background: var(--paper);
}

.section-courses {
  background: #eef5f1;
}

.section-compare {
  background: #f3efe5;
}

.section-community {
  background: #f7f4ec;
}

.section-industries {
  background: #edf3f6;
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.section-note {
  max-width: 360px;
  margin: 0;
  color: var(--muted);
}

.filter-panel {
  display: grid;
  gap: 18px;
  padding: 18px;
  margin-bottom: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.filter-panel.compact {
  grid-template-columns: auto 1fr;
  align-items: center;
}

.filter-label {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.compact .filter-label {
  margin: 0;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-chip {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 13px;
  color: var(--ink);
  background: white;
}

.filter-chip:hover,
.filter-chip:focus-visible {
  border-color: var(--green);
}

.filter-chip.is-active {
  color: white;
  border-color: var(--green);
  background: var(--green);
}

.tool-grid,
.course-grid,
.route-grid,
.industry-grid {
  display: grid;
  gap: 16px;
}

.tool-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.course-grid,
.route-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.tool-card,
.course-card,
.route-card,
.industry-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 10px 28px rgba(30, 45, 39, 0.06);
}

.tool-card {
  padding: 18px;
}

.course-card,
.route-card,
.industry-card {
  padding: 20px;
}

.course-card-link {
  cursor: pointer;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
}

.course-card-link:hover,
.course-card-link:focus-visible {
  border-color: var(--green);
  box-shadow: 0 16px 34px rgba(30, 45, 39, 0.12);
  transform: translateY(-2px);
  outline: none;
}

.course-enter {
  align-self: flex-start;
  margin-top: auto;
  padding-top: 16px;
  color: var(--green-dark);
  font-weight: 900;
}

.card-topline,
.course-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 14px;
}

.category-pill,
.type-pill,
.level-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 9px;
  border-radius: 999px;
  color: var(--green-dark);
  background: var(--mint);
  font-size: 12px;
  font-weight: 800;
}

.type-pill {
  color: #6e4510;
  background: #f8e7bd;
}

.level-pill {
  color: #244977;
  background: var(--sky);
}

.tool-card p,
.course-card p,
.route-card p,
.industry-card p {
  margin: 10px 0 0;
  color: var(--muted);
}

.tool-card ul,
.course-card ul,
.route-card ul,
.industry-card ul {
  padding-left: 20px;
  margin: 14px 0 0;
  color: var(--muted);
}

.tool-card li + li,
.course-card li + li,
.route-card li + li,
.industry-card li + li {
  margin-top: 6px;
}

.industry-card h4 {
  margin: 0;
  font-size: 14px;
}

.industry-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.industry-columns div,
.risk-box {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f9fbfa;
}

.risk-box {
  margin-top: 16px;
  border-color: #e7c7aa;
  background: #fff5eb;
}

.risk-box strong {
  display: block;
  color: #8a3d20;
}

.role-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 14px 0;
}

.role-tags span {
  padding: 4px 8px;
  border-radius: 999px;
  color: var(--muted);
  background: #f1f3ee;
  font-size: 12px;
}

.card-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  padding-top: 18px;
}

.detail-button,
.source-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  border-radius: var(--radius);
  font-weight: 800;
  font-size: 14px;
}

.detail-button {
  border: 1px solid var(--green);
  padding: 0 12px;
  color: white;
  background: var(--green);
}

.source-link {
  border: 1px solid var(--line);
  padding: 0 10px;
  color: var(--green-dark);
  background: white;
}

.comparison-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

.comparison-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
  padding: 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.comparison-table th {
  color: var(--green-dark);
  background: var(--mint);
}

.comparison-table tr:last-child td {
  border-bottom: 0;
}

.operate-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 34px;
  align-items: center;
}

.operate-copy {
  max-width: 700px;
  color: var(--muted);
  font-size: 17px;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.primary-action {
  color: white;
  background: var(--green);
}

.secondary-action {
  color: var(--green-dark);
  border-color: var(--line);
  background: white;
}

.status-text {
  min-height: 28px;
  margin: 14px 0 0;
  color: var(--green-dark);
  font-weight: 700;
}

.operate-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.operate-board div {
  min-height: 120px;
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: white;
}

.operate-board span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.operate-board strong {
  display: block;
  margin-top: 18px;
  font-size: 26px;
  line-height: 1.1;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 60;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 20, 0.62);
}

.modal-panel {
  position: relative;
  width: min(760px, calc(100% - 28px));
  max-height: calc(100vh - 40px);
  margin: 20px auto;
  overflow: auto;
  border-radius: var(--radius);
  background: white;
  box-shadow: var(--shadow);
}

.modal-close {
  position: sticky;
  top: 12px;
  left: calc(100% - 52px);
  z-index: 2;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: white;
  font-size: 24px;
  line-height: 1;
}

.modal-body {
  padding: 4px 28px 30px;
}

.modal-body h2 {
  margin-bottom: 8px;
}

.modal-summary {
  color: var(--muted);
  font-size: 17px;
}

.course-learning-page {
  padding-bottom: 34px;
}

.course-learning-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.75fr);
  gap: 16px;
  margin-top: 22px;
}

.course-video-frame,
.course-study-card,
.course-steps-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfa;
}

.course-video-frame {
  display: grid;
  place-items: center;
  min-height: 320px;
  padding: 28px;
  color: white;
  background:
    linear-gradient(135deg, rgba(17, 28, 24, 0.94), rgba(46, 100, 83, 0.78)),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 18px);
}

.course-video-frame.has-video {
  background:
    linear-gradient(135deg, rgba(19, 52, 68, 0.94), rgba(36, 73, 119, 0.78)),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.06) 0 1px, transparent 1px 18px);
}

.course-video-frame div {
  max-width: 520px;
  text-align: center;
}

.course-video-frame strong {
  display: block;
  margin-top: 14px;
  font-size: 24px;
}

.course-video-frame p {
  color: rgba(255, 255, 255, 0.78);
}

.course-video-frame a {
  margin-top: 14px;
}

.play-mark {
  display: inline-grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
  font-size: 22px;
}

.course-study-card {
  padding: 20px;
}

.course-study-card h3,
.course-steps-panel h3 {
  margin: 0;
}

.course-info-list {
  display: grid;
  gap: 12px;
  margin: 16px 0 0;
}

.course-info-list div {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.course-info-list div:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.course-info-list dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

.course-info-list dd {
  margin: 5px 0 0;
  color: var(--ink);
  font-weight: 800;
}

.course-steps-panel {
  margin-top: 16px;
  padding: 20px;
}

.course-step-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}

.course-step-list li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

.course-step-list span {
  display: grid;
  place-items: center;
  height: 36px;
  border-radius: 50%;
  color: white;
  background: var(--green);
  font-weight: 900;
}

.course-step-list p {
  margin: 6px 0 0;
  color: var(--ink);
  font-weight: 800;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0;
}

.detail-grid div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8faf7;
}

.detail-grid span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.detail-grid strong {
  display: block;
  margin-top: 6px;
}

.detail-section {
  margin-top: 22px;
}

.detail-section h3 {
  font-size: 16px;
}

.detail-section ul {
  padding-left: 20px;
  margin: 10px 0 0;
  color: var(--muted);
}

.install-guide-section {
  margin-top: 24px;
}

.compact-heading {
  align-items: flex-start;
  margin-bottom: 16px;
}

.modal-guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.modal-guide-card {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr);
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfa;
}

.modal-guide-card img {
  width: 108px;
  height: 92px;
  border-radius: var(--radius);
  object-fit: cover;
}

.modal-guide-card h4 {
  margin: 8px 0 0;
  font-size: 15px;
}

.modal-guide-card p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.site-footer {
  padding: 28px 0;
  color: rgba(255, 255, 255, 0.76);
  background: #13201b;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.footer-inner p {
  margin: 0;
}

.empty-state {
  grid-column: 1 / -1;
  padding: 36px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  background: white;
}

.community-shell {
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.community-panel,
.community-main {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

.community-panel {
  position: sticky;
  top: 84px;
  padding: 18px;
}

.member-card h3,
.member-card p {
  margin: 0;
}

.member-card p {
  color: var(--muted);
}

.member-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.community-stats {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.community-stats div {
  padding: 12px;
  border-radius: var(--radius);
  background: #f6f8f5;
}

.community-stats span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.community-stats strong {
  display: block;
  margin-top: 4px;
  font-size: 22px;
}

.community-warning {
  margin: 18px 0 0;
  padding: 12px;
  border-radius: var(--radius);
  color: #6e4510;
  background: #fbedd1;
  font-size: 13px;
  font-weight: 700;
}

.community-main {
  padding: 18px;
}

.community-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.community-tab {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink);
  background: white;
  font-weight: 800;
}

.community-tab.is-active {
  color: white;
  border-color: var(--green);
  background: var(--green);
}

.community-view {
  display: none;
}

.community-view.is-active {
  display: block;
}

.section-anchor {
  display: block;
  height: 1px;
  scroll-margin-top: 96px;
}

.creator-dashboard,
.creator-submissions {
  margin-bottom: 18px;
}

.creator-empty,
.creator-hero,
.creator-next,
.creator-list,
.creator-submission-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfa;
}

.creator-empty,
.creator-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px;
}

.creator-empty h3,
.creator-hero h3,
.creator-list h3,
.creator-submission-card h3,
.creator-form-heading h3 {
  margin: 0;
}

.creator-empty p,
.creator-hero p,
.creator-next p,
.creator-submission-card p,
.creator-form-heading p {
  margin: 8px 0 0;
  color: var(--muted);
}

.creator-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.creator-metrics div {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

.creator-metrics span,
.creator-submission-side span,
.creator-list-heading span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.creator-metrics strong {
  display: block;
  margin-top: 6px;
  font-size: 24px;
}

.creator-next {
  margin-top: 12px;
  padding: 14px;
  background: #fff8e8;
}

.creator-list {
  padding: 18px;
}

.creator-list-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.creator-submission-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 150px;
  gap: 12px;
  padding: 14px;
  background: white;
}

.creator-submission-card + .creator-submission-card {
  margin-top: 10px;
}

.creator-submission-side {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 10px;
  border-radius: var(--radius);
  background: #f4f7f5;
}

.creator-form-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.creator-form-heading p {
  max-width: 360px;
  font-size: 13px;
}

.community-compose {
  display: grid;
  gap: 14px;
  padding: 18px;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfa;
}

.field-row {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(180px, 0.65fr);
  gap: 12px;
}

.community-compose label,
.auth-form label,
.comment-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.community-compose input,
.community-compose select,
.community-compose textarea,
.auth-form input,
.auth-form select,
.comment-form input {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 11px 12px;
  color: var(--ink);
  background: white;
  outline: none;
}

.community-compose textarea {
  resize: vertical;
}

.community-compose input:focus,
.community-compose select:focus,
.community-compose textarea:focus,
.auth-form input:focus,
.auth-form select:focus,
.comment-form input:focus {
  border-color: var(--green);
}

.community-feed,
.video-grid {
  display: grid;
  gap: 14px;
}

.question-card,
.video-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  box-shadow: 0 10px 28px rgba(30, 45, 39, 0.05);
}

.question-card {
  padding: 18px;
}

.post-meta,
.video-meta,
.comment-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
}

.post-meta span,
.video-meta span,
.comment-meta span {
  display: inline-flex;
  align-items: center;
}

.question-card h3,
.video-card h3 {
  margin-top: 10px;
}

.question-card p,
.video-card p {
  color: var(--muted);
}

.post-actions,
.tip-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.tip-button,
.small-action {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 12px;
  color: var(--green-dark);
  background: white;
  font-weight: 800;
}

.tip-button:hover,
.small-action:hover {
  border-color: var(--green);
}

.comment-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.comment-item {
  padding: 12px;
  border-radius: var(--radius);
  background: #f6f8f5;
}

.comment-item p {
  margin: 8px 0 0;
}

.comment-form {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.comment-form label {
  flex: 1;
}

.video-card {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  overflow: hidden;
}

.video-thumb {
  display: grid;
  place-items: center;
  min-height: 180px;
  color: white;
  background:
    linear-gradient(135deg, rgba(47, 111, 94, 0.96), rgba(49, 92, 153, 0.86)),
    var(--green);
}

.video-thumb span {
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border: 2px solid rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  font-size: 24px;
  font-weight: 800;
}

.video-body {
  padding: 18px;
}

.auth-form {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

@media (max-width: 980px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 20px;
  }

  .main-nav {
    justify-content: flex-start;
  }

  .hero {
    min-height: auto;
    padding-top: 64px;
  }

  .tool-grid,
  .course-grid,
  .route-grid,
  .industry-grid,
  .operate-layout,
  .community-shell {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .community-panel {
    position: static;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(100% - 28px, 1180px);
  }

  .site-header {
    position: static;
  }

  .brand {
    white-space: normal;
  }

  .hero {
    padding: 52px 0 42px;
  }

  h1 {
    font-size: 38px;
  }

  h2 {
    font-size: 28px;
  }

  .hero-search {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-search input,
  .hero-search button {
    width: 100%;
  }

  .hero-stats,
  .tool-grid,
  .course-grid,
  .route-grid,
  .industry-grid,
  .operate-layout,
  .operate-board,
  .detail-grid,
  .filter-panel.compact,
  .community-shell,
  .field-row,
  .video-card,
  .course-learning-layout,
  .industry-columns,
  .creator-metrics,
  .creator-submission-card {
    grid-template-columns: 1fr;
  }

  .comment-form {
    flex-direction: column;
  }

  .creator-empty,
  .creator-hero,
  .creator-form-heading,
  .creator-list-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .section {
    padding: 58px 0;
  }

  .modal-panel {
    width: calc(100% - 18px);
    max-height: calc(100vh - 18px);
    margin: 9px auto;
  }

  .modal-body {
    padding: 0 18px 24px;
  }

  .modal-guide-grid,
  .modal-guide-card {
    grid-template-columns: 1fr;
  }

  .modal-guide-card img {
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
  }
}