:root {
  --ink: #111827;
  --ink-2: #374151;
  --muted: #6b7280;
  --line: #d8e0ea;
  --paper: #ffffff;
  --soft: #f6f9fc;
  --blue: #0768d8;
  --blue-dark: #064f9d;
  --blue-soft: #e7f1ff;
  --blue-quiet: #f3f8ff;
  --green: #0f9f6e;
  --green-soft: #e9f8f1;
  --amber: #b7791f;
  --amber-soft: #fff6df;
  --footer: #071a33;
  --shadow: 0 24px 70px rgba(15, 42, 77, 0.11);
  --shadow-soft: 0 12px 34px rgba(15, 42, 77, 0.08);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

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

img {
  display: block;
  max-width: 100%;
}

button,
input,
select {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 30px;
  min-height: 72px;
  padding: 0 40px;
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid rgba(210, 210, 215, 0.72);
  backdrop-filter: blur(20px) saturate(180%);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  flex: 0 0 40px;
  width: 40px;
  height: 40px;
  place-items: center;
  color: #ffffff;
  background: var(--blue);
  border-radius: 8px;
  font-weight: 800;
  font-size: 1.25rem;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1rem;
  line-height: 1.2;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--ink-2);
  font-size: 0.94rem;
}

.main-nav a {
  padding: 23px 0;
  border-bottom: 2px solid transparent;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 18px;
  color: #ffffff;
  background: var(--blue);
  border-radius: 8px;
  font-weight: 700;
  box-shadow: 0 10px 22px rgba(0, 102, 204, 0.18);
}

.header-cta:hover,
.header-cta:focus-visible {
  background: var(--blue-dark);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
  border-radius: 8px;
}

.hero {
  position: relative;
  display: grid;
  align-items: center;
  min-height: 68svh;
  overflow: hidden;
  color: var(--ink);
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  position: relative;
  width: min(100% - 80px, var(--max));
  margin: 0 auto;
  padding: 96px 0 70px;
  text-align: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 880px;
  margin: 0 auto;
  color: var(--ink);
  font-size: 3.55rem;
  line-height: 1.12;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.hero h1 span {
  display: block;
}

.hero-copy {
  max-width: 720px;
  margin: 22px auto 0;
  color: var(--muted);
  font-size: 1.08rem;
  overflow-wrap: anywhere;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  line-height: 1.2;
  cursor: pointer;
}

.btn svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.btn-primary {
  color: #ffffff;
  background: var(--blue);
  box-shadow: 0 14px 28px rgba(0, 102, 204, 0.18);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--blue-dark);
}

.btn-secondary {
  color: var(--blue);
  background: #ffffff;
  border-color: rgba(0, 102, 204, 0.28);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: var(--blue-soft);
  border-color: rgba(0, 102, 204, 0.45);
}

.btn-wide {
  width: 100%;
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.58;
  box-shadow: none;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 14px;
  max-width: 660px;
  margin: 42px auto 0;
}

.hero-stats div {
  padding: 18px 16px;
  background: var(--blue-quiet);
  border: 1px solid #cfe5ff;
  border-radius: 8px;
}

.hero-stats dt {
  color: var(--ink);
  font-size: 1.42rem;
  font-weight: 900;
  line-height: 1.1;
}

.hero-stats dd {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.trust-strip span {
  min-height: 76px;
  display: grid;
  place-items: center;
  padding: 16px;
  color: var(--ink-2);
  background: #ffffff;
  font-weight: 800;
  text-align: center;
}

.section {
  padding: 104px 40px;
}

.section-light,
.seo-section {
  background: var(--soft);
}

.section-head {
  width: min(100%, var(--max));
  margin: 0 auto 44px;
}

.section-head h2,
.split-copy h2,
.form-copy h2 {
  max-width: 800px;
  margin: 0;
  color: var(--ink);
  font-size: 2.7rem;
  line-height: 1.12;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.section-head > p:not(.eyebrow),
.split-copy p,
.form-copy p {
  max-width: 730px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 1.06rem;
}

.feature-grid,
.article-grid,
.audience-grid {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  gap: 20px;
}

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

.feature-card,
.article-card,
.audience-grid article {
  min-height: 248px;
  padding: 28px;
  background: #ffffff;
  border: 1px solid rgba(210, 210, 215, 0.88);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
}

.card-icon {
  display: inline-grid;
  width: 44px;
  height: 44px;
  place-items: center;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 8px;
  font-weight: 900;
}

.feature-card h3,
.article-card h2,
.article-card h3,
.audience-grid h3,
.timeline-item h3 {
  margin: 22px 0 10px;
  color: var(--ink);
  font-size: 1.18rem;
  line-height: 1.35;
}

.feature-card p,
.article-card p,
.audience-grid p,
.timeline-item p {
  margin: 0;
  color: var(--muted);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1fr);
  gap: 54px;
  align-items: center;
  width: min(100% - 80px, var(--max));
  margin: 0 auto;
  padding-left: 0;
  padding-right: 0;
}

.text-link {
  display: inline-flex;
  align-items: center;
  margin-top: 30px;
  color: var(--blue);
  font-weight: 900;
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--blue-dark);
}

.requirements-panel {
  display: grid;
  gap: 12px;
  padding: 12px;
  background: var(--blue-quiet);
  border: 1px solid #cfe5ff;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.requirement-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  align-items: center;
  min-height: 78px;
  padding: 18px;
  background: #ffffff;
  border: 1px solid rgba(210, 210, 215, 0.72);
  border-radius: 8px;
}

.requirement-row span {
  color: var(--blue);
  font-weight: 900;
}

.requirement-row strong {
  color: var(--ink);
  font-size: 1.02rem;
  line-height: 1.45;
}

.section-ink {
  color: #ffffff;
  background: var(--footer);
}

.section-ink .section-head h2 {
  color: #ffffff;
}

.section-ink .section-head p:last-child {
  color: rgba(255, 255, 255, 0.72);
}

.section-ink .eyebrow {
  color: #8cc8ff;
}

.timeline {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.timeline-item {
  position: relative;
  min-height: 248px;
  padding: 28px;
  background: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
}

.timeline-item span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 8px;
  font-weight: 900;
}

.audience-section {
  background: #ffffff;
}

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

.audience-grid article {
  min-height: 190px;
  background: #ffffff;
}

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

.article-card {
  min-height: 240px;
}

.article-card-link {
  display: block;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.article-card-link:hover,
.article-card-link:focus-visible {
  border-color: rgba(0, 102, 204, 0.36);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.article-card > p:first-child {
  margin: 0 0 12px;
  color: var(--blue);
  font-weight: 900;
}

.article-card span {
  display: inline-flex;
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
}

.article-page,
.article-detail {
  background: #ffffff;
}

.article-hero {
  width: min(100% - 80px, 920px);
  margin: 0 auto;
  padding: 108px 0 54px;
  text-align: center;
}

.article-hero h1,
.article-title h1 {
  margin: 0;
  color: var(--ink);
  font-size: 4rem;
  line-height: 1.05;
  letter-spacing: 0;
}

.article-hero p:last-child,
.article-title > p:last-child {
  max-width: 760px;
  margin: 22px auto 0;
  color: var(--muted);
  font-size: 1.12rem;
}

.article-list {
  width: min(100% - 80px, var(--max));
  margin: 0 auto;
  padding: 0 0 96px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.article-directory .article-hero {
  padding-bottom: 36px;
}

.article-directory-tools {
  width: min(100% - 80px, var(--max));
  margin: 0 auto 28px;
  padding: 24px;
  display: grid;
  gap: 18px;
  background: var(--blue-quiet);
  border: 1px solid #cfe5ff;
  border-radius: 8px;
}

.article-search {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 900;
}

.article-search span {
  font-size: 0.95rem;
}

.article-search input {
  width: 100%;
  min-height: 52px;
  padding: 0 16px;
  color: var(--ink);
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.article-search input:focus {
  outline: 3px solid rgba(0, 102, 204, 0.16);
  border-color: var(--blue);
}

.article-tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.article-tag-filter button {
  min-height: 38px;
  padding: 0 13px;
  color: var(--ink-2);
  background: #ffffff;
  border: 1px solid rgba(210, 210, 215, 0.9);
  border-radius: 8px;
  font-weight: 900;
  cursor: pointer;
}

.article-tag-filter button:hover,
.article-tag-filter button:focus-visible {
  color: var(--blue);
  border-color: rgba(0, 102, 204, 0.42);
}

.article-tag-filter button.is-active {
  color: #ffffff;
  background: var(--blue);
  border-color: var(--blue);
}

.article-tag-filter button span {
  margin-left: 6px;
  color: var(--muted);
  font-size: 0.82rem;
}

.article-tag-filter button.is-active span {
  color: rgba(255, 255, 255, 0.78);
}

.article-result-count {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 800;
}

.article-directory-list {
  width: min(100% - 80px, 980px);
  margin: 0 auto;
  padding: 0 0 24px;
  display: grid;
  gap: 16px;
}

.article-list-item a {
  display: block;
  padding: 28px 30px;
  background: #ffffff;
  border: 1px solid rgba(210, 210, 215, 0.88);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.article-list-item a:hover,
.article-list-item a:focus-visible {
  border-color: rgba(0, 102, 204, 0.36);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.article-list-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
}

.article-list-meta span:first-child {
  color: var(--blue);
}

.article-list-item h2 {
  margin: 14px 0 10px;
  color: var(--ink);
  font-size: 1.45rem;
  line-height: 1.28;
  letter-spacing: 0;
}

.article-list-item p {
  margin: 0;
  color: var(--muted);
}

.article-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.article-tag-row span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  color: var(--blue);
  background: var(--blue-soft);
  border: 1px solid rgba(0, 102, 204, 0.12);
  border-radius: 8px;
  font-size: 0.84rem;
  font-weight: 900;
}

.article-title-tags {
  margin-top: 22px;
}

.article-empty-search {
  margin: 0;
  padding: 30px;
  color: var(--muted);
  text-align: center;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 800;
}

.article-pagination {
  width: min(100% - 80px, 980px);
  margin: 0 auto 96px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px;
}

.article-pagination button {
  min-width: 40px;
  min-height: 40px;
  padding: 0 12px;
  color: var(--ink-2);
  background: #ffffff;
  border: 1px solid rgba(210, 210, 215, 0.9);
  border-radius: 8px;
  font-weight: 900;
  cursor: pointer;
}

.article-pagination button:first-child,
.article-pagination button:last-child {
  min-width: 76px;
}

.article-pagination button:hover,
.article-pagination button:focus-visible {
  color: var(--blue);
  border-color: rgba(0, 102, 204, 0.42);
}

.article-pagination button.is-active {
  color: #ffffff;
  background: var(--blue);
  border-color: var(--blue);
}

.article-pagination button:disabled {
  color: var(--muted);
  background: var(--soft);
  cursor: not-allowed;
  opacity: 0.65;
}

.article-pagination-ellipsis {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 4px;
  color: var(--muted);
  font-weight: 900;
}

.empty-state {
  grid-column: 1 / -1;
  padding: 46px;
  text-align: center;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.empty-state h2 {
  margin: 0;
  color: var(--ink);
}

.empty-state p {
  margin: 10px 0 0;
  color: var(--muted);
}

.article-detail article {
  width: min(100% - 80px, 860px);
  margin: 0 auto;
  padding: 70px 0 100px;
}

.article-back a {
  color: var(--blue);
  font-weight: 900;
}

.article-title {
  padding: 36px 0 46px;
  border-bottom: 1px solid var(--line);
}

.article-title > p:first-child {
  margin: 0 0 16px;
  color: var(--blue);
  font-weight: 900;
}

.article-title > p:last-child {
  margin-left: 0;
  margin-right: 0;
}

.article-content {
  padding-top: 32px;
  color: var(--ink-2);
  font-size: 1.08rem;
  line-height: 1.85;
}

.article-content h2,
.article-content h3,
.article-content h4 {
  margin: 44px 0 12px;
  color: var(--ink);
  line-height: 1.2;
}

.article-content h2 {
  font-size: 2rem;
}

.article-content h3 {
  font-size: 1.48rem;
}

.article-content p,
.article-content ul {
  margin: 18px 0 0;
}

.article-content ul {
  padding-left: 1.2em;
}

.article-content strong {
  color: var(--ink);
}

.article-content a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.tool-board,
.tool-shell,
.planner-grid,
.knowledge-grid {
  width: min(100%, var(--max));
  margin: 0 auto;
}

.tool-board {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
  gap: 20px;
  align-items: stretch;
}

.practice-card,
.tool-mini-card,
.tool-form,
.result-panel,
.planner-control,
.planner-step,
.knowledge-grid article {
  background: #ffffff;
  border: 1px solid rgba(210, 210, 215, 0.88);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
}

.practice-card {
  padding: 30px;
}

.tool-card-head {
  display: flex;
  align-items: center;
  gap: 14px;
}

.tool-card-head .eyebrow {
  margin-bottom: 4px;
}

.tool-card-head h3,
.tool-mini-card h3,
.result-panel h3,
.planner-step h3,
.knowledge-grid h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.2rem;
  line-height: 1.32;
}

.question-text {
  margin: 28px 0 18px;
  color: var(--ink);
  font-size: 1.2rem;
  font-weight: 900;
  line-height: 1.55;
}

.option-grid {
  display: grid;
  gap: 12px;
}

.quiz-option {
  width: 100%;
  min-height: 54px;
  padding: 14px 16px;
  color: var(--ink-2);
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: left;
  cursor: pointer;
}

.quiz-option:hover,
.quiz-option:focus-visible {
  color: var(--blue);
  background: var(--blue-quiet);
  border-color: rgba(0, 102, 204, 0.42);
  outline: none;
}

.quiz-option.is-correct {
  color: #075e34;
  background: #ecfdf3;
  border-color: rgba(10, 127, 70, 0.45);
}

.quiz-option.is-wrong {
  color: #9f1b1b;
  background: #fff1f2;
  border-color: rgba(190, 18, 60, 0.36);
}

.tool-result {
  min-height: 54px;
  margin: 18px 0 0;
  padding: 14px 16px;
  color: var(--ink-2);
  background: var(--blue-quiet);
  border: 1px solid #cfe5ff;
  border-radius: 8px;
  font-weight: 800;
}

.tool-stack {
  display: grid;
  gap: 20px;
}

.tool-mini-card {
  display: grid;
  align-content: start;
  gap: 14px;
  padding: 28px;
}

.tool-mini-card p,
.result-panel p,
.planner-step p,
.knowledge-grid p {
  margin: 0;
  color: var(--muted);
}

.tool-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.78fr);
  gap: 20px;
  align-items: start;
}

.tool-form {
  display: grid;
  gap: 18px;
  padding: 30px;
}

.tool-form label,
.planner-control label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 900;
}

.tool-form select,
.planner-control select {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  color: var(--ink);
  background: #fbfbfd;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.tool-form select:focus,
.planner-control select:focus {
  outline: 3px solid rgba(0, 102, 204, 0.16);
  border-color: var(--blue);
}

.result-panel {
  display: grid;
  gap: 14px;
  min-height: 100%;
  padding: 30px;
}

.result-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 1.2em;
  color: var(--ink-2);
  font-weight: 800;
}

.planner-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 20px;
  align-items: start;
}

.planner-control {
  padding: 28px;
}

.planner-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.planner-step {
  min-height: 170px;
  padding: 24px;
}

.planner-step span {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--blue);
  font-size: 0.9rem;
  font-weight: 900;
}

.knowledge-section {
  background: #ffffff;
}

.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.knowledge-grid article {
  min-height: 220px;
  padding: 26px;
}

.knowledge-grid p {
  margin-top: 12px;
}

.knowledge-grid a {
  display: inline-flex;
  margin-top: 20px;
  color: var(--blue);
  font-weight: 900;
}

.article-practice-cta {
  margin-top: 48px;
  padding: 28px;
  background: var(--blue-quiet);
  border: 1px solid #cfe5ff;
  border-radius: 8px;
}

.article-practice-cta h2 {
  margin: 0;
  color: var(--ink);
  font-size: 1.5rem;
  line-height: 1.32;
}

.article-practice-cta p:not(.eyebrow) {
  margin: 12px 0 20px;
  color: var(--muted);
}

.faq-section {
  background: #ffffff;
}

.faq-list {
  width: min(100%, 920px);
  margin: 0 auto;
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item button {
  display: grid;
  grid-template-columns: 1fr 28px;
  align-items: center;
  width: 100%;
  min-height: 76px;
  padding: 0;
  color: var(--ink);
  background: transparent;
  border: 0;
  text-align: left;
  font-weight: 900;
  cursor: pointer;
}

.faq-item button span {
  position: relative;
  width: 28px;
  height: 28px;
}

.faq-item button span::before,
.faq-item button span::after {
  content: "";
  position: absolute;
  top: 13px;
  left: 6px;
  width: 16px;
  height: 2px;
  background: var(--blue);
}

.faq-item button span::after {
  transform: rotate(90deg);
}

.faq-item.is-open button span::after {
  transform: rotate(0);
}

.faq-answer {
  display: none;
  padding: 0 44px 24px 0;
}

.faq-item.is-open .faq-answer {
  display: block;
}

.faq-answer p {
  margin: 0;
  color: var(--muted);
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  padding: 42px 40px;
  color: rgba(255, 255, 255, 0.76);
  background: var(--footer);
}

.site-footer > div {
  width: min(100%, var(--max));
}

.footer-brand {
  color: #ffffff;
}

.footer-brand .brand-mark {
  background: #ffffff;
  color: var(--blue);
}

.site-footer p {
  max-width: 760px;
  margin: 18px 0 0;
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 22px;
  white-space: nowrap;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: #ffffff;
}

/* Product redesign */
body {
  background: var(--soft);
  text-rendering: optimizeLegibility;
}

.site-header {
  min-height: 68px;
  padding: 0 36px;
  background: rgba(255, 255, 255, 0.9);
  border-bottom-color: rgba(216, 224, 234, 0.88);
  box-shadow: 0 1px 0 rgba(15, 42, 77, 0.04);
}

.brand-mark {
  background: linear-gradient(135deg, #075ec8 0%, #0b79f0 100%);
  box-shadow: 0 10px 22px rgba(7, 104, 216, 0.18);
}

.main-nav {
  gap: 24px;
  font-weight: 760;
}

.main-nav a {
  padding: 22px 0;
}

.header-cta,
.btn-primary {
  background: linear-gradient(135deg, #075ec8 0%, #0b79f0 100%);
}

.header-cta {
  min-height: 42px;
  padding: 0 20px;
}

.hero {
  min-height: 720px;
  background:
    linear-gradient(90deg, rgba(7, 104, 216, 0.05) 0, rgba(7, 104, 216, 0) 34%),
    linear-gradient(180deg, #ffffff 0%, #f8fbff 58%, #f3f7fb 100%);
  border-bottom: 0;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 68px 0 0;
  background-image:
    linear-gradient(rgba(7, 104, 216, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 104, 216, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 72%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(420px, 0.82fr);
  gap: 64px;
  align-items: center;
  width: min(100% - 88px, 1220px);
  padding: 108px 0 84px;
  text-align: left;
}

.hero-copy-block {
  min-width: 0;
}

.eyebrow {
  color: var(--blue);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}

.hero h1 {
  max-width: 640px;
  margin: 0;
  font-size: 4.18rem;
  line-height: 1.02;
}

.hero-copy {
  max-width: 590px;
  margin-left: 0;
  margin-right: 0;
  color: #5d6673;
  font-size: 1.08rem;
  line-height: 1.85;
}

.hero-actions {
  justify-content: flex-start;
  margin-top: 32px;
}

.btn {
  min-height: 50px;
  padding: 0 22px;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background 160ms ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  box-shadow: 0 18px 34px rgba(7, 104, 216, 0.22);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 12px 26px rgba(15, 42, 77, 0.06);
}

.hero-stats {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  max-width: 620px;
  margin: 38px 0 0;
}

.hero-stats div {
  padding: 18px;
  background: rgba(255, 255, 255, 0.74);
  border-color: rgba(190, 207, 230, 0.86);
  box-shadow: 0 10px 28px rgba(15, 42, 77, 0.05);
}

.hero-stats dt {
  font-size: 1.28rem;
}

.hero-product {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 22px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(199, 212, 229, 0.86);
  border-radius: 8px;
  box-shadow: 0 30px 80px rgba(15, 42, 77, 0.16);
  backdrop-filter: blur(18px) saturate(160%);
}

.hero-product::after {
  content: "";
  position: absolute;
  inset: 10px;
  z-index: -1;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(7, 104, 216, 0.18), rgba(15, 159, 110, 0.1));
  transform: translate(20px, 20px);
}

.product-topbar,
.product-insight {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.product-topbar span,
.product-question p,
.product-insight span {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 800;
}

.product-topbar strong {
  color: var(--green);
  font-size: 0.92rem;
}

.product-progress {
  height: 8px;
  overflow: hidden;
  background: #e7edf5;
  border-radius: 8px;
}

.product-progress span {
  display: block;
  width: 62%;
  height: 100%;
  background: linear-gradient(90deg, var(--blue), var(--green));
  border-radius: inherit;
}

.product-question {
  padding: 22px;
  background: #f8fbff;
  border: 1px solid rgba(216, 224, 234, 0.9);
  border-radius: 8px;
}

.product-question p {
  margin: 0 0 10px;
  color: var(--blue);
}

.product-question h2 {
  margin: 0;
  color: var(--ink);
  font-size: 1.42rem;
  line-height: 1.35;
}

.product-options {
  display: grid;
  gap: 10px;
}

.product-options span {
  display: flex;
  align-items: center;
  min-height: 46px;
  padding: 0 14px;
  color: var(--ink-2);
  background: #ffffff;
  border: 1px solid rgba(216, 224, 234, 0.9);
  border-radius: 8px;
  font-weight: 800;
}

.product-options .is-active {
  color: #0a6448;
  background: var(--green-soft);
  border-color: rgba(15, 159, 110, 0.36);
}

.product-insight {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-insight div {
  padding: 16px 12px;
  background: #ffffff;
  border: 1px solid rgba(216, 224, 234, 0.82);
  border-radius: 8px;
}

.product-insight strong {
  display: block;
  margin-top: 4px;
  color: var(--ink);
  font-size: 1.2rem;
}

.hero-index {
  align-content: start;
  gap: 18px;
}

.hero-index::after {
  display: none;
}

.index-topbar,
.index-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.index-topbar span,
.index-topbar strong {
  font-size: 0.9rem;
  font-weight: 900;
}

.index-topbar span {
  color: var(--ink);
}

.index-topbar strong {
  color: var(--blue);
}

.index-search {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  min-height: 50px;
  padding: 0 16px;
  color: var(--muted);
  background: var(--blue-quiet);
  border: 1px solid rgba(7, 104, 216, 0.16);
  border-radius: 8px;
  font-size: 0.94rem;
}

.index-search strong {
  color: var(--ink);
}

.index-list {
  display: grid;
  gap: 10px;
}

.index-list a {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 16px;
  align-items: center;
  min-height: 72px;
  padding: 16px;
  background: #ffffff;
  border: 1px solid rgba(216, 224, 234, 0.92);
  border-radius: 8px;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.index-list a:hover,
.index-list a:focus-visible {
  background: #f8fbff;
  border-color: rgba(7, 104, 216, 0.28);
  transform: translateY(-1px);
}

.index-list span {
  color: var(--blue);
  font-size: 0.86rem;
  font-weight: 900;
}

.index-list strong {
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.42;
}

.index-footer {
  justify-content: flex-start;
}

.index-footer a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 13px;
  color: var(--blue);
  background: #ffffff;
  border: 1px solid rgba(7, 104, 216, 0.2);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 900;
}

.trust-strip {
  width: min(100% - 88px, 1220px);
  margin: -36px auto 0;
  position: relative;
  z-index: 2;
  gap: 0;
  overflow: hidden;
  background: #ffffff;
  border: 1px solid rgba(216, 224, 234, 0.92);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
}

.trust-strip a {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: center;
  min-height: 84px;
  padding: 0 24px;
  color: var(--ink);
  background: #ffffff;
  border-right: 1px solid rgba(216, 224, 234, 0.92);
  font-weight: 900;
  transition: background 160ms ease, color 160ms ease;
}

.trust-strip a:last-child {
  border-right: 0;
}

.trust-strip strong {
  color: var(--blue);
  font-size: 0.84rem;
}

.trust-strip a span {
  display: block;
  min-height: auto;
  padding: 0;
  color: inherit;
  background: transparent;
  font-weight: 900;
  text-align: left;
}

.trust-strip a:hover,
.trust-strip a:focus-visible {
  color: var(--blue);
  background: var(--blue-quiet);
}

.section {
  padding: 112px 40px;
}

.section-light,
.seo-section {
  background: #f3f7fb;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.68fr);
  gap: 28px 56px;
  align-items: end;
  margin-bottom: 38px;
}

.section-head .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: -10px;
}

.section-head h2,
.split-copy h2 {
  font-size: 2.55rem;
  line-height: 1.08;
}

.section-head > p:not(.eyebrow),
.split-copy p {
  margin: 0;
  line-height: 1.82;
}

.feature-card,
.article-card,
.audience-grid article,
.practice-card,
.tool-mini-card,
.tool-form,
.result-panel,
.planner-control,
.planner-step,
.knowledge-grid article,
.article-list-item a,
.article-directory-tools {
  border-color: rgba(216, 224, 234, 0.92);
  box-shadow: 0 14px 38px rgba(15, 42, 77, 0.07);
}

.feature-card,
.article-card,
.audience-grid article,
.tool-mini-card,
.knowledge-grid article {
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.feature-card:hover,
.article-card:hover,
.audience-grid article:hover,
.tool-mini-card:hover,
.knowledge-grid article:hover {
  border-color: rgba(7, 104, 216, 0.24);
  box-shadow: 0 24px 54px rgba(15, 42, 77, 0.1);
  transform: translateY(-2px);
}

.card-icon {
  color: var(--blue);
  background: var(--blue-soft);
}

.feature-card:nth-child(2) .card-icon,
.tool-mini-card:nth-child(1) .card-icon {
  color: var(--green);
  background: var(--green-soft);
}

.feature-card:nth-child(3) .card-icon,
.tool-mini-card:nth-child(2) .card-icon {
  color: var(--amber);
  background: var(--amber-soft);
}

.tool-board {
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  gap: 24px;
}

.practice-card {
  padding: 34px;
  background:
    linear-gradient(180deg, #ffffff 0%, #fbfdff 100%);
}

.question-text {
  font-size: 1.3rem;
}

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

.quiz-option {
  min-height: 62px;
  background: #fbfdff;
}

.tool-mini-card {
  min-height: 0;
  background: #ffffff;
}

.requirements-panel {
  padding: 14px;
  background: #ffffff;
  border-color: rgba(216, 224, 234, 0.92);
}

.requirement-row {
  background: #f8fbff;
}

.section-ink {
  background:
    linear-gradient(135deg, rgba(7, 104, 216, 0.22) 0%, rgba(7, 26, 51, 0) 42%),
    #071a33;
}

.timeline {
  gap: 1px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.12);
}

.timeline-item {
  min-height: 260px;
  padding: 30px;
  background: rgba(255, 255, 255, 0.06);
  border: 0;
  border-radius: 0;
}

.timeline-item h3 {
  color: #ffffff;
}

.timeline-item p {
  color: rgba(255, 255, 255, 0.72);
}

.timeline-item span {
  color: #9fd2ff;
  background: rgba(255, 255, 255, 0.08);
}

.tool-section,
.knowledge-section,
.audience-section,
.faq-section {
  background: #ffffff;
}

.tool-form select,
.planner-control select,
.article-search input {
  background: #ffffff;
  border-color: rgba(203, 214, 228, 0.98);
}

.result-panel {
  background:
    linear-gradient(180deg, var(--blue-quiet) 0%, #ffffff 78%);
}

.planner-step span {
  padding: 0 10px;
  background: var(--blue-soft);
  border-radius: 8px;
}

.knowledge-grid article {
  display: flex;
  flex-direction: column;
}

.knowledge-grid a {
  margin-top: auto;
}

.faq-list {
  border-top-color: rgba(216, 224, 234, 0.92);
}

.faq-item {
  border-bottom-color: rgba(216, 224, 234, 0.92);
}

.site-footer {
  background:
    linear-gradient(135deg, rgba(7, 104, 216, 0.2) 0%, rgba(7, 26, 51, 0) 40%),
    var(--footer);
}

.topic-section {
  background: #ffffff;
}

.section-head-compact {
  align-items: start;
}

.topic-grid {
  width: min(100%, var(--max));
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.topic-grid a {
  display: grid;
  align-content: start;
  min-height: 190px;
  padding: 24px;
  background: #ffffff;
  border: 1px solid rgba(216, 224, 234, 0.92);
  border-radius: 8px;
  box-shadow: 0 12px 34px rgba(15, 42, 77, 0.06);
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.topic-grid a:hover,
.topic-grid a:focus-visible {
  border-color: rgba(7, 104, 216, 0.28);
  box-shadow: 0 22px 50px rgba(15, 42, 77, 0.1);
  transform: translateY(-2px);
}

.topic-grid span {
  width: fit-content;
  min-height: 28px;
  padding: 3px 10px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 900;
}

.topic-grid h3 {
  margin: 18px 0 10px;
  color: var(--ink);
  font-size: 1.18rem;
  line-height: 1.34;
}

.topic-grid p {
  margin: 0;
  color: var(--muted);
}

.practice-page {
  background:
    linear-gradient(180deg, #f7fbff 0%, #ffffff 34%);
}

.practice-hero,
.practice-workspace {
  width: min(100% - 80px, var(--max));
  margin: 0 auto;
}

.practice-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 32px;
  align-items: end;
  padding: 86px 0 40px;
}

.practice-hero h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(3rem, 7vw, 5.8rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.practice-hero p:not(.eyebrow) {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--ink-2);
  font-size: 1.16rem;
  line-height: 1.78;
}

.practice-status-card,
.practice-question-panel,
.practice-side-panel article {
  background: #ffffff;
  border: 1px solid rgba(216, 224, 234, 0.92);
  border-radius: 8px;
  box-shadow: 0 18px 46px rgba(15, 42, 77, 0.08);
}

.practice-status-card {
  display: grid;
  gap: 8px;
  padding: 22px;
}

.practice-status-card span,
.practice-status-card small {
  color: var(--muted);
}

.practice-status-card strong {
  color: var(--ink);
  font-size: 1.22rem;
}

.practice-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 24px;
  align-items: start;
  padding: 20px 0 96px;
}

.practice-question-panel {
  padding: 32px;
}

.practice-panel-head {
  display: flex;
  gap: 20px;
  align-items: start;
  justify-content: space-between;
}

.practice-panel-head h2 {
  margin: 0;
  color: var(--ink);
  font-size: 1.55rem;
  line-height: 1.24;
}

.practice-reload {
  flex: 0 0 auto;
  min-height: 42px;
  padding: 10px 16px;
}

.question-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
}

.question-tags span {
  padding: 7px 10px;
  color: var(--blue);
  background: var(--blue-quiet);
  border: 1px solid #cfe5ff;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 800;
}

.practice-question-text {
  margin: 30px 0 22px;
  color: var(--ink);
  font-size: 1.42rem;
  font-weight: 900;
  line-height: 1.55;
}

.practice-options {
  display: grid;
  gap: 12px;
}

.practice-option {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  width: 100%;
  min-height: 62px;
  padding: 16px;
  color: var(--ink-2);
  background: #fbfdff;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: left;
  cursor: pointer;
}

.practice-option strong {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: 50%;
}

.practice-option:hover,
.practice-option:focus-visible {
  color: var(--blue);
  border-color: rgba(0, 102, 204, 0.42);
  outline: none;
}

.practice-option.is-correct {
  color: #075e34;
  background: #ecfdf3;
  border-color: rgba(10, 127, 70, 0.45);
}

.practice-option.is-correct strong {
  color: #ffffff;
  background: #0f9f6e;
}

.practice-option.is-wrong {
  color: #9f1b1b;
  background: #fff1f2;
  border-color: rgba(190, 18, 60, 0.36);
}

.practice-option.is-wrong strong {
  color: #ffffff;
  background: #c81e3a;
}

.practice-answer-box {
  min-height: 72px;
  margin: 20px 0 0;
  padding: 16px 18px;
  color: var(--ink-2);
  background: var(--blue-quiet);
  border: 1px solid #cfe5ff;
  border-radius: 8px;
  font-weight: 760;
}

.practice-answer-box p {
  margin: 8px 0 0;
  font-weight: 600;
  line-height: 1.76;
}

.practice-answer-box.is-correct {
  color: #075e34;
  background: #ecfdf3;
  border-color: rgba(10, 127, 70, 0.45);
}

.practice-answer-box.is-wrong {
  color: #9f1b1b;
  background: #fff1f2;
  border-color: rgba(190, 18, 60, 0.36);
}

.practice-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 24px;
}

.practice-actions .btn:disabled {
  color: var(--muted);
  background: #eef2f7;
  border-color: #d8e0ea;
  box-shadow: none;
  cursor: not-allowed;
}

.practice-side-panel {
  display: grid;
  gap: 16px;
}

.practice-side-panel article {
  display: grid;
  gap: 12px;
  padding: 24px;
}

.practice-side-panel h2 {
  margin: 0;
  color: var(--ink);
  font-size: 1.08rem;
}

.practice-side-panel p {
  margin: 0;
  color: var(--ink-2);
  line-height: 1.76;
}

@media (max-width: 1020px) {
  .site-header {
    grid-template-columns: 1fr auto;
    padding: 0 22px;
  }

  .main-nav,
  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .main-nav.is-open {
    position: fixed;
    inset: 72px 0 auto;
    display: grid;
    gap: 0;
    padding: 12px 22px 24px;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 38px rgba(0, 40, 85, 0.1);
  }

  .main-nav.is-open a {
    padding: 16px 0;
    border-bottom: 1px solid var(--line);
  }

  .hero h1 {
    max-width: 700px;
    font-size: 3rem;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 42px;
    width: min(100% - 44px, var(--max));
    text-align: center;
  }

  .hero h1,
  .hero-copy {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-product {
    width: min(100%, 640px);
    margin: 0 auto;
  }

  .trust-strip {
    width: min(100% - 44px, var(--max));
  }

  .section-head {
    grid-template-columns: 1fr;
  }

  .section-head > p:not(.eyebrow) {
    max-width: 760px;
  }

  .feature-grid,
  .timeline,
  .article-grid,
  .article-list,
  .knowledge-grid,
  .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split-section,
  .tool-board,
  .tool-shell,
  .practice-hero,
  .practice-workspace,
  .planner-grid {
    grid-template-columns: 1fr;
    width: min(100% - 44px, var(--max));
  }

  .practice-hero {
    padding-top: 64px;
  }
}

@media (max-width: 760px) {
  .site-header {
    min-height: 64px;
  }

  .hero {
    min-height: auto;
  }

  .hero-inner {
    width: min(100% - 44px, var(--max));
    padding: 58px 0 56px;
  }

  .hero h1 {
    font-size: 2.32rem;
    line-height: 1.08;
  }

  .hero-copy {
    font-size: 1rem;
  }

  .hero-actions {
    display: grid;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-top: 30px;
  }

  .trust-strip {
    grid-template-columns: 1fr 1fr;
    margin-top: -22px;
  }

  .trust-strip a {
    min-height: 64px;
    padding: 0 16px;
    font-size: 0.9rem;
  }

  .trust-strip strong {
    font-size: 0.76rem;
  }

  .section {
    padding: 72px 22px;
  }

  .section-head h2,
  .split-copy h2 {
    font-size: 2rem;
  }

  .feature-grid,
  .timeline,
  .article-grid,
  .article-list,
  .audience-grid,
  .knowledge-grid,
  .planner-steps,
  .topic-grid {
    grid-template-columns: 1fr;
  }

  .hero-product {
    padding: 20px;
  }

  .index-topbar,
  .index-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .index-list a {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .hero-product::after {
    display: none;
  }

  .product-question {
    padding: 18px;
  }

  .product-question h2 {
    font-size: 1.1rem;
  }

  .product-insight {
    grid-template-columns: 1fr;
  }

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

  .article-hero,
  .article-detail article,
  .article-list,
  .article-directory-tools,
  .article-directory-list {
    width: min(100% - 44px, var(--max));
  }

  .article-hero {
    padding: 72px 0 42px;
  }

  .article-hero h1,
  .article-title h1 {
    font-size: 2.45rem;
  }

  .article-directory-tools {
    padding: 18px;
    margin-bottom: 20px;
  }

  .article-tag-filter {
    gap: 8px;
  }

  .article-tag-filter button {
    min-height: 36px;
    padding: 0 11px;
    font-size: 0.9rem;
  }

  .article-directory-list {
    padding-bottom: 20px;
  }

  .article-list-item a {
    padding: 22px;
  }

  .article-list-item h2 {
    font-size: 1.24rem;
  }

  .article-pagination {
    width: min(100% - 44px, var(--max));
    margin-bottom: 72px;
    justify-content: center;
  }

  .article-pagination button {
    min-width: 38px;
    min-height: 38px;
    padding: 0 10px;
    font-size: 0.92rem;
  }

  .feature-card,
  .article-card,
  .audience-grid article,
  .timeline-item {
    min-height: auto;
  }

  .requirement-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .practice-card,
  .tool-form,
  .result-panel,
  .planner-control,
  .planner-step,
  .knowledge-grid article,
  .topic-grid a {
    padding: 22px;
  }

  .practice-hero {
    width: min(100% - 44px, var(--max));
    padding: 54px 0 28px;
  }

  .practice-hero h1 {
    font-size: 3.2rem;
  }

  .practice-hero p:not(.eyebrow) {
    font-size: 1rem;
  }

  .practice-workspace {
    width: min(100% - 44px, var(--max));
    padding-bottom: 72px;
  }

  .practice-question-panel {
    padding: 22px;
  }

  .practice-panel-head,
  .practice-actions {
    display: grid;
  }

  .practice-reload {
    width: 100%;
  }

  .practice-question-text {
    font-size: 1.16rem;
  }

  .practice-option {
    grid-template-columns: 30px minmax(0, 1fr);
    padding: 14px;
  }

  .practice-option strong {
    width: 30px;
    height: 30px;
  }

  .site-footer {
    grid-template-columns: 1fr;
    padding: 36px 22px;
  }

  .footer-links {
    flex-wrap: wrap;
  }
}

@media (max-width: 420px) {
  .brand small {
    display: none;
  }

  .hero h1 {
    font-size: 1.94rem;
  }

  .btn {
    width: 100%;
    padding-left: 16px;
    padding-right: 16px;
  }
}