:root {
  --ink: #131b2e;
  --muted: #6b7485;
  --line: #dce3ed;
  --surface: #ffffff;
  --canvas: #f5f8fc;
  --blue: #2764eb;
  --cyan: #14b7da;
  --green: #19a56b;
  --purple: #7b4cde;
  --pink: #f02e9d;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans JP", "Yu Gothic",
    Meiryo, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input {
  font: inherit;
}
button {
  cursor: pointer;
}
.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;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.header-inner {
  width: min(1368px, calc(100% - 40px));
  height: 74px;
  margin: auto;
  display: flex;
  align-items: center;
  gap: 34px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #10192b;
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.045em;
  white-space: nowrap;
}
.brand-bars {
  display: flex;
  align-items: end;
  gap: 2px;
  height: 22px;
}
.brand-bars i {
  display: block;
  width: 4px;
  border-radius: 3px 3px 1px 1px;
  background: linear-gradient(180deg, var(--cyan), var(--blue));
}
.brand-bars i:nth-child(1) {
  height: 8px;
}
.brand-bars i:nth-child(2) {
  height: 14px;
}
.brand-bars i:nth-child(3) {
  height: 21px;
}
.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 1.45vw, 28px);
  flex: 1;
}
.desktop-nav a {
  color: #303949;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  transition: color 0.15s ease;
}
.desktop-nav a:hover {
  color: var(--blue);
}
.search-box {
  width: 238px;
  height: 38px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 13px;
  background: #fafbfc;
  border: 1px solid #ccd5e1;
  border-radius: 7px;
}
.search-box input {
  min-width: 0;
  width: 100%;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font-size: 12px;
}
.search-icon {
  display: inline-block;
  width: 15px;
  height: 15px;
  border: 2px solid #26344b;
  border-radius: 50%;
  position: relative;
}
.search-icon::after {
  content: "";
  position: absolute;
  width: 6px;
  height: 2px;
  right: -5px;
  bottom: -2px;
  background: #26344b;
  transform: rotate(45deg);
  border-radius: 2px;
}
.mobile-actions,
.mobile-nav {
  display: none;
}
.mobile-menu {
  position: relative;
}
.mobile-menu summary {
  list-style: none;
  cursor: pointer;
}
.mobile-menu summary::-webkit-details-marker {
  display: none;
}
.mobile-menu-panel {
  display: none;
}

.page-shell {
  width: min(1368px, calc(100% - 40px));
  margin: 18px auto 64px;
}
.media-intro {
  min-height: 124px;
  margin-bottom: 18px;
  padding: 24px 28px 24px 31px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 145px;
  gap: 32px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  position: relative;
  overflow: hidden;
}
.media-intro::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--cyan), var(--blue));
}
.media-intro::after {
  content: "";
  position: absolute;
  width: 170px;
  height: 170px;
  right: 105px;
  top: -90px;
  opacity: 0.06;
  background-image: radial-gradient(var(--blue) 1px, transparent 1px);
  background-size: 11px 11px;
  pointer-events: none;
}
.media-intro-copy {
  position: relative;
  z-index: 1;
}
.media-intro-copy > span {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.16em;
}
.media-intro-copy p {
  max-width: 970px;
  margin: 0;
  color: #3f4c60;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.9;
}
.media-intro-update {
  min-height: 70px;
  padding-left: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-left: 1px solid #e0e6ee;
  position: relative;
  z-index: 1;
}
.media-intro-update small {
  color: #8a94a3;
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.12em;
}
.media-intro-update strong {
  display: block;
  margin-top: 6px;
  color: #1d3153;
  font-size: 13px;
  line-height: 1.55;
}
.ad-slot {
  color: #7b8492;
  background: linear-gradient(135deg, #f7f8fa, #ebeff4);
  border: 1px solid #e0e5ec;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ad-slot.banner {
  height: 58px;
  margin-bottom: 24px;
  font-size: 12px;
}
.ad-slot.rectangle {
  height: 250px;
  flex-direction: column;
  gap: 6px;
  font-size: 16px;
}
.ad-slot.rectangle small {
  font-size: 13px;
}
.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 336px;
  gap: 28px;
  align-items: start;
}
.main-column,
.sidebar > section,
.sidebar > .ad-slot {
  min-width: 0;
}
.section-title {
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-title > span {
  color: var(--blue);
}
.weekly-section {
  margin-bottom: 24px;
}
.weekly-feature {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 254px 1fr;
  gap: 22px;
  padding: 14px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease;
}
.weekly-feature:hover,
.article-card:hover {
  border-color: #b5c8e8;
  box-shadow: 0 8px 24px rgba(25, 55, 100, 0.08);
}
.weekly-art {
  min-height: 164px;
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  background: linear-gradient(135deg, #e6f4ff 0%, #f7fbff 50%, #dcf4ff 100%);
}
.weekly-art::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(39, 100, 235, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(39, 100, 235, 0.07) 1px, transparent 1px);
  background-size: 18px 18px;
}
.weekly-art.sns-feature {
  background: linear-gradient(135deg, #fff0f8 0%, #fffafd 52%, #fce4f2 100%);
}
.weekly-art.sns-feature::before {
  background-image:
    linear-gradient(rgba(240, 46, 157, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(240, 46, 157, 0.08) 1px, transparent 1px);
}
.weekly-sns-hash {
  position: absolute;
  left: 34px;
  top: 50%;
  z-index: 2;
  color: var(--pink);
  font-size: 92px;
  line-height: 1;
  font-weight: 900;
  transform: translateY(-52%);
}
.weekly-art.sns-feature .weekly-art-label {
  color: var(--pink);
}
.google-g,
.meta-mark {
  position: absolute;
  top: 20px;
  z-index: 2;
  font-size: 42px;
  font-weight: 900;
}
.google-g {
  left: 26px;
  color: #4285f4;
}
.meta-mark {
  right: 28px;
  color: #0866ff;
}
.growth-bars {
  position: absolute;
  display: flex;
  align-items: end;
  gap: 8px;
  left: 38px;
  bottom: 25px;
  height: 65px;
}
.growth-bars i {
  display: block;
  width: 18px;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(180deg, #24bfdf, #2d65ec);
}
.growth-bars i:nth-child(1) {
  height: 22px;
}
.growth-bars i:nth-child(2) {
  height: 36px;
}
.growth-bars i:nth-child(3) {
  height: 49px;
}
.growth-bars i:nth-child(4) {
  height: 64px;
}
.growth-line {
  position: absolute;
  right: 34px;
  bottom: 38px;
  color: var(--green);
  font-size: 58px;
  font-weight: 900;
}
.weekly-search-bar {
  width: 178px;
  height: 44px;
  position: absolute;
  left: 28px;
  top: 27px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.78);
  border: 3px solid var(--blue);
  border-radius: 24px;
}
.weekly-search-bar::before {
  content: "";
  width: 15px;
  height: 15px;
  position: absolute;
  left: 15px;
  top: 10px;
  border: 3px solid var(--blue);
  border-radius: 50%;
}
.weekly-search-bar::after {
  content: "";
  width: 9px;
  height: 3px;
  position: absolute;
  left: 29px;
  top: 27px;
  background: var(--blue);
  border-radius: 2px;
  transform: rotate(45deg);
}
.weekly-search-bar i {
  width: 98px;
  height: 4px;
  position: absolute;
  left: 52px;
  top: 17px;
  background: var(--blue);
  border-radius: 4px;
  opacity: 0.42;
}
.weekly-search-click {
  width: 54px;
  height: 54px;
  position: absolute;
  left: 68px;
  bottom: 20px;
  z-index: 2;
  border: 2px solid var(--cyan);
  border-radius: 50%;
}
.weekly-search-click::before,
.weekly-search-click::after {
  content: "";
  position: absolute;
  border: 2px solid var(--cyan);
  border-radius: 50%;
}
.weekly-search-click::before {
  inset: 9px;
}
.weekly-search-click::after {
  inset: 20px;
  background: var(--cyan);
}
.weekly-search-click i {
  width: 37px;
  height: 3px;
  position: absolute;
  left: 42px;
  top: 25px;
  background: var(--blue);
  transform: rotate(-22deg);
  transform-origin: left center;
}
.weekly-art-label {
  position: absolute;
  right: 24px;
  bottom: 20px;
  z-index: 2;
  color: var(--blue);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.14em;
}
.weekly-copy {
  padding: 4px 8px 4px 0;
  align-self: center;
}
.weekly-copy h2 {
  margin: 9px 0 9px;
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.45;
  letter-spacing: -0.02em;
}
.weekly-copy p {
  margin: 12px 0 0;
  color: #566174;
  font-size: 13px;
  line-height: 1.75;
}
.category {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  color: #fff;
  border-radius: 5px;
  padding: 3px 8px;
  font-size: 10px;
  line-height: 1.2;
  font-weight: 800;
  white-space: nowrap;
}
.category.blue {
  background: var(--blue);
}
.category.green {
  background: var(--green);
}
.category.purple {
  background: var(--purple);
}
.category.pink {
  background: var(--pink);
}
.category.indigo {
  background: #5b52e7;
}
.category.orange {
  background: #df7114;
}
.category.cyan {
  background: #0d9fbd;
}
.category.navy {
  background: #354762;
}
.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: #7a8493;
  font-size: 10px;
}
.section-heading-row {
  margin-bottom: 14px;
}
.article-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.empty-state {
  grid-column: 1 / -1;
  padding: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  text-align: center;
}
.empty-state strong {
  display: block;
  margin-bottom: 7px;
  font-size: 15px;
}
.empty-state p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}
.article-card {
  min-width: 0;
  display: grid;
  grid-template-columns: 142px minmax(0, 1fr);
  gap: 14px;
  padding: 12px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 9px;
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease;
}
.article-art {
  min-height: 116px;
  border-radius: 7px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #eef3ff;
  color: var(--blue);
}
.article-art.green {
  color: var(--green);
  background: #eaf8f2;
}
.article-art.purple {
  color: var(--purple);
  background: #f2edff;
}
.article-art.pink {
  color: var(--pink);
  background: #fff0f8;
}
.article-art.indigo {
  color: #5b52e7;
  background: #f0efff;
}
.article-art.orange {
  color: #df7114;
  background: #fff4e8;
}
.article-art.cyan {
  color: #0d9fbd;
  background: #e8f8fb;
}
.article-art.navy {
  color: #354762;
  background: #edf1f6;
}
.art-grid {
  position: absolute;
  inset: 0;
  opacity: 0.55;
  background-image: radial-gradient(currentColor 1px, transparent 1px);
  background-size: 10px 10px;
}
.article-art b {
  position: relative;
  z-index: 1;
  font-size: 34px;
  font-style: normal;
}
.article-art em {
  position: absolute;
  right: 9px;
  bottom: 7px;
  z-index: 1;
  color: currentColor;
  font-size: 9px;
  font-weight: 900;
  font-style: normal;
  letter-spacing: 0.12em;
}
.mini-bars {
  display: flex;
  align-items: end;
  gap: 6px;
  height: 56px;
  z-index: 1;
}
.mini-bars i {
  display: block;
  width: 13px;
  background: currentColor;
  border-radius: 2px 2px 0 0;
}
.mini-bars i:nth-child(1) {
  height: 19px;
}
.mini-bars i:nth-child(2) {
  height: 31px;
}
.mini-bars i:nth-child(3) {
  height: 44px;
}
.mini-bars i:nth-child(4) {
  height: 55px;
}
.other-ads-platforms {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 7px;
}
.other-ads-platforms i {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: currentColor;
  background: rgba(255, 255, 255, 0.88);
  border: 2px solid currentColor;
  border-radius: 9px;
  font-size: 13px;
  font-weight: 900;
  font-style: normal;
}
.other-ads-platforms i:nth-child(2) {
  transform: translateY(-8px);
}
.search-ad-bar {
  width: 104px;
  height: 31px;
  position: absolute;
  left: 18px;
  top: 24px;
  z-index: 1;
  background: rgba(255, 255, 255, 0.82);
  border: 2px solid currentColor;
  border-radius: 18px;
}
.search-ad-bar::before {
  content: "";
  width: 10px;
  height: 10px;
  position: absolute;
  left: 10px;
  top: 7px;
  border: 2px solid currentColor;
  border-radius: 50%;
}
.search-ad-bar::after {
  content: "";
  width: 6px;
  height: 2px;
  position: absolute;
  left: 20px;
  top: 18px;
  background: currentColor;
  border-radius: 2px;
  transform: rotate(45deg);
}
.search-ad-bar i {
  width: 52px;
  height: 3px;
  position: absolute;
  left: 36px;
  top: 12px;
  background: currentColor;
  border-radius: 3px;
  opacity: 0.48;
}
.search-ad-click {
  width: 34px;
  height: 34px;
  position: absolute;
  left: 36px;
  bottom: 14px;
  z-index: 2;
  border: 1px solid currentColor;
  border-radius: 50%;
}
.search-ad-click::before,
.search-ad-click::after {
  content: "";
  position: absolute;
  border: 1px solid currentColor;
  border-radius: 50%;
}
.search-ad-click::before {
  inset: 6px;
}
.search-ad-click::after {
  inset: 12px;
  background: currentColor;
}
.search-ad-click i {
  width: 20px;
  height: 2px;
  position: absolute;
  left: 27px;
  top: 16px;
  background: currentColor;
  transform: rotate(-22deg);
  transform-origin: left center;
}
.article-art .meta-loop {
  color: #0866ff;
  font-family: Arial, sans-serif;
  font-size: 62px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.08em;
  transform: scaleX(1.15);
}
.meta-nodes {
  width: 86px;
  height: 52px;
  position: absolute;
  z-index: 2;
}
.meta-nodes i {
  width: 7px;
  height: 7px;
  position: absolute;
  background: #7b4cde;
  border: 2px solid #f2edff;
  border-radius: 50%;
}
.meta-nodes i:first-child {
  left: 0;
  top: 22px;
}
.meta-nodes i:last-child {
  right: 0;
  top: 22px;
}
.ai-orbit {
  width: 72px;
  height: 72px;
  position: absolute;
  z-index: 1;
  border: 1.5px solid currentColor;
  border-radius: 50%;
}
.ai-orbit::before,
.ai-orbit::after {
  content: "";
  position: absolute;
  inset: 10px -9px;
  border: 1px solid currentColor;
  border-radius: 50%;
  transform: rotate(58deg);
  opacity: 0.65;
}
.ai-orbit::after {
  transform: rotate(-58deg);
}
.ai-orbit i {
  width: 7px;
  height: 7px;
  position: absolute;
  z-index: 2;
  background: currentColor;
  border: 2px solid #f0efff;
  border-radius: 50%;
}
.ai-orbit i:nth-child(1) {
  left: -3px;
  top: 31px;
}
.ai-orbit i:nth-child(2) {
  right: 7px;
  top: 4px;
}
.ai-orbit i:nth-child(3) {
  right: 6px;
  bottom: 4px;
}
.article-art .ai-core {
  font-size: 27px;
  letter-spacing: -0.05em;
}
.data-bars {
  height: 62px;
  display: flex;
  align-items: end;
  gap: 6px;
  position: relative;
  z-index: 1;
}
.data-bars i {
  width: 13px;
  display: block;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(180deg, #20c2d9, #1789c3);
}
.data-bars i:nth-child(1) {
  height: 20px;
}
.data-bars i:nth-child(2) {
  height: 34px;
}
.data-bars i:nth-child(3) {
  height: 48px;
}
.data-bars i:nth-child(4) {
  height: 61px;
}
.data-line {
  margin-left: 3px;
  position: relative;
  z-index: 2;
  color: #19a56b;
  font-size: 35px;
  font-weight: 900;
}
.tool-rings {
  width: 82px;
  height: 66px;
  position: absolute;
  z-index: 1;
}
.tool-rings i {
  width: 26px;
  height: 26px;
  position: absolute;
  border: 2px solid currentColor;
  border-radius: 8px;
  transform: rotate(45deg);
  opacity: 0.42;
}
.tool-rings i:nth-child(1) {
  left: 0;
  top: 20px;
}
.tool-rings i:nth-child(2) {
  right: 0;
  top: 3px;
}
.tool-rings i:nth-child(3) {
  right: 7px;
  bottom: 0;
}
.article-art .tool-gear {
  color: #354762;
  font-family: "Segoe UI Symbol", sans-serif;
  font-size: 43px;
}
.article-copy {
  min-width: 0;
  align-self: center;
}
.article-copy h3 {
  margin: 6px 0 5px;
  font-size: 14px;
  line-height: 1.52;
  letter-spacing: -0.01em;
}
.article-copy p {
  margin: 0 0 8px;
  color: #626d7e;
  font-size: 10px;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.mobile-inline-ad {
  display: none;
}
.sidebar {
  display: grid;
  gap: 18px;
}
.ranking {
  padding: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.ranking ol {
  padding: 0;
  margin: 13px 0 0;
  list-style: none;
}
.ranking li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 8px;
  padding: 11px 0;
  border-top: 1px solid #e5eaf0;
}
.rank-number {
  color: #2671f2;
  font-size: 22px;
  font-weight: 800;
  line-height: 1;
}
.ranking a {
  min-width: 0;
}
.ranking strong {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  line-height: 1.45;
}
.ranking small {
  display: block;
  margin-top: 5px;
  color: #8590a0;
  font-size: 9px;
}
.site-footer {
  width: min(1368px, calc(100% - 40px));
  margin: 0 auto 24px;
  padding: 38px 42px 26px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
}
.site-footer p {
  max-width: 440px;
  color: #6d7788;
  font-size: 12px;
  line-height: 1.8;
}
.site-footer nav {
  display: grid;
  grid-template-columns: repeat(2, auto);
  gap: 12px 30px;
  font-size: 12px;
}
.site-footer small {
  color: #9098a6;
  font-size: 10px;
}

/* Article archives */
.archive-shell {
  width: min(1368px, calc(100% - 40px));
  margin: 18px auto 64px;
}
.archive-breadcrumbs {
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #778293;
  font-size: 10px;
}
.archive-breadcrumbs a:hover {
  color: var(--blue);
}
.archive-intro {
  min-height: 158px;
  padding: 27px 32px 26px 35px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 30px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 11px;
  position: relative;
  overflow: hidden;
}
.archive-intro::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: linear-gradient(180deg, var(--cyan), var(--blue));
}
.archive-intro::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 190px;
  right: 50px;
  top: -80px;
  opacity: 0.055;
  background-image: radial-gradient(var(--blue) 1.2px, transparent 1.2px);
  background-size: 12px 12px;
  pointer-events: none;
}
.archive-intro > div {
  position: relative;
  z-index: 1;
}
.archive-intro small {
  color: var(--blue);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.16em;
}
.archive-intro h1 {
  margin: 7px 0 8px;
  font-size: clamp(25px, 2.5vw, 36px);
  line-height: 1.25;
  letter-spacing: -0.035em;
}
.archive-intro p {
  max-width: 850px;
  margin: 0;
  color: #5e697a;
  font-size: 13px;
  line-height: 1.85;
}
.archive-intro > strong {
  min-width: 112px;
  position: relative;
  z-index: 1;
  color: var(--blue);
  font-size: 37px;
  line-height: 1;
  letter-spacing: -0.04em;
  text-align: right;
}
.archive-intro > strong span {
  display: block;
  margin-top: 7px;
  color: #8590a1;
  font-size: 8px;
  letter-spacing: 0.15em;
}
.archive-shell > .ad-slot {
  margin: 18px 0 24px;
}
.archive-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 26px;
  align-items: start;
}
.archive-section-head {
  margin-bottom: 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.archive-section-head h2 {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
}
.archive-section-head h2 span {
  color: var(--blue);
}
.archive-section-head > span {
  color: #7e8998;
  font-size: 10px;
}
.archive-list {
  display: grid;
  gap: 12px;
}
.archive-card {
  min-width: 0;
  padding: 14px;
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease,
    transform 0.15s ease;
}
.archive-card:hover {
  border-color: #b5c8e8;
  box-shadow: 0 8px 24px rgba(25, 55, 100, 0.08);
  transform: translateY(-1px);
}
.archive-card-mark {
  min-height: 126px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  position: relative;
  overflow: hidden;
  color: var(--blue);
  background: #eef4ff;
}
.archive-card-mark::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.38;
  background-image: radial-gradient(currentColor 1px, transparent 1px);
  background-size: 11px 11px;
}
.archive-card-mark span {
  position: relative;
  z-index: 1;
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.04em;
}
.archive-card-mark.green {
  color: var(--green);
  background: #eaf8f2;
}
.archive-card-mark.purple {
  color: var(--purple);
  background: #f2edff;
}
.archive-card-mark.pink {
  color: var(--pink);
  background: #fff0f8;
}
.archive-card-mark.orange {
  color: #df7114;
  background: #fff4e8;
}
.archive-card-mark.cyan {
  color: #0d9fbd;
  background: #e8f8fb;
}
.archive-card-mark.navy {
  color: #354762;
  background: #edf1f6;
}
.archive-card-copy {
  min-width: 0;
  align-self: center;
}
.archive-card-copy h2 {
  margin: 7px 0 6px;
  font-size: 17px;
  line-height: 1.5;
  letter-spacing: -0.02em;
}
.archive-card-copy p {
  margin: 0 0 10px;
  color: #626d7e;
  font-size: 11px;
  line-height: 1.7;
}
.archive-card-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.article-tags {
  min-width: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 5px;
}
.article-tags span {
  padding: 3px 7px;
  color: #637085;
  background: #f2f5f9;
  border-radius: 999px;
  font-size: 8px;
  white-space: nowrap;
}
.archive-side {
  display: grid;
  gap: 16px;
}
.category-index,
.tag-index {
  padding: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.category-index h2,
.tag-index h2 {
  margin: 0 0 12px;
  padding-bottom: 11px;
  border-bottom: 2px solid #243a61;
  font-size: 15px;
}
.category-index a {
  min-height: 38px;
  padding: 8px 5px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border-bottom: 1px solid #e7ebf1;
  color: #4e596a;
  font-size: 11px;
}
.category-index a:hover,
.category-index a.active {
  color: var(--blue);
  font-weight: 800;
}
.category-index a span {
  display: flex;
  align-items: center;
  gap: 8px;
}
.category-index i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #8490a3;
}
.category-index i.blue {
  background: var(--blue);
}
.category-index i.purple {
  background: var(--purple);
}
.category-index i.green {
  background: var(--green);
}
.category-index i.pink {
  background: var(--pink);
}
.category-index i.orange {
  background: #df7114;
}
.category-index i.cyan {
  background: #0d9fbd;
}
.category-index i.navy {
  background: #354762;
}
.category-index b {
  color: #9aa3b0;
  font-size: 9px;
}
.tag-index > div {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.tag-index > div span {
  padding: 6px 9px;
  color: #546176;
  background: #f1f4f8;
  border-radius: 999px;
  font-size: 9px;
}
.tag-index p {
  margin: 14px 0 0;
  color: #7b8595;
  font-size: 9px;
  line-height: 1.7;
}
.archive-side .ad-slot {
  margin: 0;
}

@media (max-width: 1050px) {
  .desktop-nav {
    display: none;
  }
  .search-box {
    margin-left: auto;
  }
  .content-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    grid-template-columns: 1fr 300px;
  }
  .archive-layout {
    grid-template-columns: minmax(0, 1fr) 270px;
    gap: 18px;
  }
}

@media (max-width: 700px) {
  body {
    background: #f7f9fc;
  }
  .site-header {
    position: relative;
  }
  .header-inner {
    width: 100%;
    height: 58px;
    padding: 0 16px;
  }
  .brand {
    font-size: 20px;
  }
  .brand-bars {
    display: none;
  }
  .search-box {
    display: none;
  }
  .mobile-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 16px;
  }
  .mobile-actions button {
    width: 25px;
    height: 25px;
    padding: 3px;
    background: none;
    border: 0;
  }
  .mobile-menu summary {
    width: 25px;
    height: 25px;
    padding: 4px 3px;
  }
  .menu-icon {
    height: 100%;
    display: grid;
    align-content: center;
    gap: 4px;
  }
  .menu-icon i {
    display: block;
    width: 18px;
    height: 2px;
    background: #24324a;
    border-radius: 2px;
    transition:
      transform 0.15s ease,
      opacity 0.15s ease;
  }
  .mobile-menu[open] .menu-icon i:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  .mobile-menu[open] .menu-icon i:nth-child(2) {
    opacity: 0;
  }
  .mobile-menu[open] .menu-icon i:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
  .mobile-menu-panel {
    width: min(310px, calc(100vw - 28px));
    position: absolute;
    right: -2px;
    top: 38px;
    z-index: 50;
    padding: 13px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 7px;
    background: #fff;
    border: 1px solid #d7e0eb;
    border-radius: 10px;
    box-shadow: 0 14px 38px rgba(17, 32, 58, 0.18);
  }
  .mobile-menu-panel strong {
    grid-column: 1 / -1;
    padding: 2px 4px 8px;
    color: #1c2a43;
    font-size: 12px;
  }
  .mobile-menu-panel a {
    min-height: 40px;
    padding: 10px 11px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    color: #354158;
    background: #f7f9fc;
    border: 1px solid #e4e9f0;
    border-radius: 7px;
    font-size: 10px;
    font-weight: 800;
  }
  .mobile-menu-panel a span {
    color: var(--blue);
    font-size: 14px;
  }
  .page-shell {
    width: 100%;
    margin: 12px auto 36px;
    padding: 0 14px;
  }
  .media-intro {
    min-height: 0;
    margin-bottom: 12px;
    padding: 19px 18px 18px 21px;
    display: block;
  }
  .media-intro::after {
    right: -50px;
    top: -80px;
  }
  .media-intro-copy > span {
    margin-bottom: 7px;
    font-size: 8px;
  }
  .media-intro-copy p {
    font-size: 12px;
    font-weight: 600;
    line-height: 1.85;
  }
  .media-intro-update {
    min-height: 0;
    margin-top: 14px;
    padding: 11px 0 0;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid #e4e9ef;
    border-left: 0;
  }
  .media-intro-update strong {
    margin: 0;
    font-size: 10px;
    text-align: right;
  }
  .media-intro-update strong br {
    display: none;
  }
  .ad-slot.banner {
    height: 70px;
    margin-bottom: 14px;
  }
  .content-layout {
    display: block;
  }
  .section-title {
    font-size: 16px;
  }
  .weekly-section {
    margin-bottom: 16px;
  }
  .weekly-section .section-title > span {
    font-size: 19px;
  }
  .weekly-feature {
    grid-template-columns: 48% 1fr;
    min-height: 196px;
    gap: 16px;
    padding: 14px;
    margin-top: 10px;
    border-color: #c4d4ec;
    border-radius: 13px;
    box-shadow: 0 10px 26px rgba(25, 55, 100, 0.11);
  }
  .weekly-art {
    min-height: 166px;
  }
  .weekly-search-bar {
    width: calc(100% - 28px);
    height: 30px;
    left: 14px;
    top: 18px;
    border-width: 2px;
  }
  .weekly-search-bar::before {
    width: 10px;
    height: 10px;
    left: 9px;
    top: 6px;
    border-width: 2px;
  }
  .weekly-search-bar::after {
    width: 6px;
    height: 2px;
    left: 18px;
    top: 17px;
  }
  .weekly-search-bar i {
    width: calc(100% - 46px);
    height: 3px;
    left: 32px;
    top: 11px;
  }
  .weekly-search-click {
    width: 36px;
    height: 36px;
    left: 29px;
    bottom: 18px;
    border-width: 1px;
  }
  .weekly-search-click::before {
    inset: 6px;
    border-width: 1px;
  }
  .weekly-search-click::after {
    inset: 13px;
    border-width: 1px;
  }
  .weekly-search-click i {
    width: 25px;
    height: 2px;
    left: 28px;
    top: 17px;
  }
  .weekly-art-label {
    right: 10px;
    bottom: 10px;
    font-size: 7px;
  }
  .weekly-copy {
    padding: 0;
  }
  .weekly-copy .category {
    display: inline-block;
    margin-bottom: 7px;
  }
  .weekly-copy .meta,
  .weekly-copy p {
    display: none;
  }
  .weekly-copy h2 {
    margin: 0;
    font-size: 17px;
    line-height: 1.55;
  }
  .section-heading-row {
    margin-bottom: 8px;
  }
  .article-grid {
    display: block;
  }
  .article-card {
    grid-template-columns: 43% 1fr;
    min-height: 128px;
    gap: 11px;
    padding: 8px;
    margin-bottom: 8px;
    border-radius: 8px;
  }
  .article-art {
    min-height: 110px;
  }
  .article-copy h3 {
    margin: 6px 0 8px;
    font-size: 14px;
    line-height: 1.48;
  }
  .article-copy p {
    display: none;
  }
  .category {
    font-size: 8px;
    padding: 3px 6px;
  }
  .meta {
    gap: 8px;
    font-size: 9px;
  }
  .mobile-inline-ad {
    display: block;
    margin: 8px 0;
  }
  .mobile-inline-ad .ad-slot {
    height: 42px;
    margin: 0;
  }
  .sidebar {
    display: block;
    margin-top: 18px;
  }
  .ranking {
    padding: 14px;
  }
  .ranking li {
    grid-template-columns: 34px 1fr;
  }
  .sidebar > .ad-slot {
    margin-top: 12px;
  }
  .ad-slot.rectangle {
    height: 250px;
  }
  .archive-shell {
    width: 100%;
    margin: 11px auto 36px;
    padding: 0 14px;
  }
  .archive-breadcrumbs {
    margin-bottom: 9px;
    font-size: 9px;
  }
  .archive-intro {
    min-height: 0;
    padding: 21px 20px 20px 23px;
    display: block;
  }
  .archive-intro::after {
    right: -70px;
    top: -100px;
  }
  .archive-intro h1 {
    margin: 6px 0 8px;
    font-size: 25px;
  }
  .archive-intro p {
    font-size: 11px;
    line-height: 1.8;
  }
  .archive-intro > strong {
    margin-top: 15px;
    display: flex;
    align-items: baseline;
    gap: 7px;
    font-size: 22px;
    text-align: left;
  }
  .archive-intro > strong span {
    margin: 0;
    font-size: 7px;
  }
  .archive-shell > .ad-slot {
    height: 58px;
    margin: 12px 0 16px;
  }
  .archive-layout {
    display: block;
  }
  .archive-section-head h2 {
    font-size: 16px;
  }
  .archive-card {
    grid-template-columns: 38% minmax(0, 1fr);
    gap: 11px;
    padding: 9px;
  }
  .archive-card-mark {
    min-height: 132px;
  }
  .archive-card-mark span {
    font-size: 20px;
  }
  .archive-card-copy h2 {
    margin: 6px 0;
    font-size: 14px;
    line-height: 1.48;
  }
  .archive-card-copy p {
    display: none;
  }
  .archive-card-bottom {
    display: block;
  }
  .article-tags {
    margin-top: 7px;
    justify-content: flex-start;
    gap: 4px;
  }
  .article-tags span {
    padding: 3px 6px;
    font-size: 7px;
  }
  .archive-side {
    margin-top: 18px;
  }
  .category-index,
  .tag-index {
    padding: 15px;
  }
  .archive-side .ad-slot {
    height: 250px;
  }
  .site-footer {
    width: calc(100% - 28px);
    margin-bottom: 14px;
    padding: 28px 22px;
    display: block;
  }
  .site-footer nav {
    margin: 22px 0;
    grid-template-columns: 1fr;
  }
}

@media (max-width: 390px) {
  .page-shell {
    padding: 0 10px;
  }
  .weekly-feature {
    grid-template-columns: 46% 1fr;
    min-height: 184px;
    gap: 12px;
    padding: 12px;
  }
  .weekly-art {
    min-height: 158px;
  }
  .article-card {
    grid-template-columns: 42% 1fr;
  }
  .weekly-copy h2 {
    font-size: 16px;
  }
  .article-copy h3 {
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    transition: none !important;
  }
}

/* Privacy policy */
.legal-page {
  width: min(960px, calc(100% - 40px));
  margin: 34px auto 70px;
}
.legal-card {
  padding: clamp(28px, 5vw, 64px);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
}
.legal-card h1 {
  margin: 8px 0 30px;
  font-size: clamp(28px, 4vw, 42px);
}
.legal-card h2 {
  margin: 34px 0 10px;
  padding-left: 12px;
  border-left: 4px solid var(--blue);
  font-size: 20px;
}
.legal-card p {
  color: #465166;
  line-height: 1.9;
}
.legal-note {
  margin-top: 40px;
  padding: 18px;
  background: var(--canvas);
  border-radius: 8px;
  font-size: 12px;
}
@media (max-width: 720px) {
  .legal-page {
    width: calc(100% - 28px);
    margin-top: 18px;
  }
  .legal-card {
    padding: 24px 20px;
  }
  .legal-card h2 {
    font-size: 17px;
  }
}

/* Google AdSense: in-article unit */
.article-ad-unit {
  width: 100%;
  margin: 42px 0;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  text-align: center;
  overflow: hidden;
}
.article-ad-label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.08em;
}
@media (max-width: 720px) {
  .article-ad-unit {
    margin: 32px 0;
    padding: 14px 0;
  }
}

/* Google AdSense: fixed sidebar display unit */
.adsense-display-unit {
  padding: 0;
  border: 0;
  overflow: hidden;
  background: transparent;
}
.ms-ad.adsense-display-unit,
.ad-slot.adsense-display-unit {
  border: 0;
}
.adsense-display-unit .adsbygoogle {
  max-width: 100%;
}