:root {
  color-scheme: light;
  --bg: #f6f8f5;
  --surface: #ffffff;
  --surface-soft: #eef4ef;
  --text: #17211c;
  --muted: #5d6a62;
  --line: #dce5df;
  --green: #0c5a42;
  --green-dark: #073a2c;
  --blue: #145b83;
  --amber: #c47a1d;
  --coral: #c8573e;
  --sky: #dcecf7;
  --shadow: 0 24px 70px rgba(16, 44, 34, 0.12);
  --radius: 8px;
  --max: 1180px;
}

body.idea-site {
  --bg: #f4f8ff;
  --surface: #ffffff;
  --surface-soft: #eef6ff;
  --text: #111827;
  --muted: #5c6676;
  --line: #d9e4f0;
  --green: #0c6b56;
  --green-dark: #064536;
  --blue: #1f63d6;
  --amber: #e07a35;
  --coral: #cf4e3b;
  background:
    linear-gradient(180deg, #f7fbff 0%, #ffffff 42%, #f4f8ff 100%);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html:has(body.mobile-entry) {
  background: #dfeeff;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system,
    BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
}

body.nav-open {
  overflow: hidden;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 76px;
  padding: 14px clamp(20px, 5vw, 56px);
  border-bottom: 1px solid rgba(220, 229, 223, 0.88);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 230px;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: var(--green);
  color: #fff;
  font-weight: 800;
}

.brand-text,
.brand-company,
.brand strong,
.brand small {
  display: block;
}

.brand-text {
  min-width: 0;
}

.brand-company,
.brand strong {
  font-size: 15px;
  color: var(--text);
  font-weight: 800;
  line-height: 1.25;
}

.brand-channel-links,
.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.brand-channel-links {
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 650;
  line-height: 1.2;
}

.brand-channel-links a {
  color: var(--muted);
}

.brand-channel-links a:hover {
  color: var(--blue);
}

.brand-channel-links span {
  color: #aab7c8;
}

#serviceYouth,
#serviceParent,
#serviceSchool,
#serviceTelecom,
#mobileExamples,
#mobileBridge,
#mobilePath,
#mobileDetails,
#mobileMore,
#mobileEnterprise {
  scroll-margin-top: 84px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #2c3831;
  font-size: 14px;
  font-weight: 650;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 12px;
  border-radius: 8px;
}

.site-nav a:hover {
  background: var(--surface-soft);
}

.site-nav .nav-cta {
  background: var(--green);
  color: #fff;
}

.site-nav .nav-cta:hover {
  background: var(--green-dark);
}

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

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

.section-band,
.section-block {
  padding: clamp(64px, 9vw, 112px) clamp(20px, 5vw, 56px);
}

.section-band {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(246, 248, 245, 0)),
    var(--bg);
}

.section-block {
  background: var(--surface);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 520px);
  gap: clamp(40px, 7vw, 92px);
  align-items: center;
  min-height: min(760px, calc(100vh - 150px));
  max-width: none;
}

.hero-copy,
.hero-visual,
.section-heading,
.split-layout,
.service-grid,
.package-grid,
.local-data-row,
.proof-layout,
.contact-section,
.site-footer {
  max-width: var(--max);
  margin-inline: auto;
}

.hero-copy {
  width: 100%;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 840px;
  margin-bottom: 24px;
  font-size: clamp(42px, 5vw, 68px);
  font-weight: 850;
  letter-spacing: 0;
  line-height: 1.04;
}

.text-keep {
  white-space: nowrap;
}

.headline-line {
  display: block;
  white-space: nowrap;
}

.accent-blue {
  color: #1767e8;
}

.accent-green {
  color: #16a05c;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 820;
  letter-spacing: 0;
  line-height: 1.12;
}

h3 {
  margin-bottom: 12px;
  font-size: 21px;
  font-weight: 780;
  letter-spacing: 0;
  line-height: 1.25;
}

.hero-copy > p,
.section-heading p,
.contact-copy p {
  color: var(--muted);
  font-size: clamp(17px, 2vw, 20px);
}

.hero-copy > p {
  max-width: 740px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 42px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 750;
  cursor: pointer;
  transition:
    background 160ms ease,
    color 160ms ease,
    transform 160ms ease,
    border-color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--green);
  color: #fff;
}

.button.primary:hover {
  background: var(--green-dark);
}

.button.secondary {
  border-color: var(--line);
  background: #fff;
  color: var(--text);
}

.button.secondary:hover {
  border-color: #b6c7be;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 14px;
  max-width: 720px;
  margin: 0;
}

.proof-strip div {
  min-height: 100px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
}

.proof-strip dt {
  margin-bottom: 8px;
  color: var(--green);
  font-size: 31px;
  font-weight: 860;
  line-height: 1;
}

.proof-strip dd {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.hero-visual {
  width: 100%;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.youth-hero {
  background:
    radial-gradient(circle at 84% 18%, rgba(20, 91, 131, 0.14), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(246, 248, 245, 0)),
    var(--bg);
}

.idea-site .site-header,
.idea-site .mobile-hero-header {
  border-bottom-color: rgba(217, 228, 240, 0.9);
  background: rgba(255, 255, 255, 0.86);
}

.idea-hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(240, 248, 255, 0.98), rgba(255, 255, 255, 0.98) 52%, rgba(239, 250, 245, 0.94)),
    var(--bg);
}

.idea-hero::before {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(31, 99, 214, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 99, 214, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.42), transparent 72%);
}

.idea-hero > * {
  position: relative;
  z-index: 1;
}

.hero-local-kicker {
  margin: 0 0 8px;
  color: #1767e8;
  font-size: 13px;
  font-weight: 800;
  line-height: 1.4;
}

.idea-site .brand-mark,
.idea-site .button.primary,
.idea-site .site-nav .nav-cta {
  background: var(--blue);
}

.idea-site .button.primary:hover,
.idea-site .site-nav .nav-cta:hover {
  background: #174fb1;
}

.idea-site h1 {
  max-width: 900px;
  font-size: clamp(48px, 6.4vw, 86px);
  letter-spacing: 0;
}

.idea-site h2 {
  color: #101827;
}

.idea-proof div {
  border-color: rgba(31, 99, 214, 0.18);
  background: rgba(255, 255, 255, 0.86);
}

.idea-proof dt,
.idea-proof strong {
  color: var(--blue);
}

.idea-lab {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(31, 99, 214, 0.14);
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.98), rgba(238, 246, 255, 0.9)),
    #fff;
  box-shadow: 0 28px 86px rgba(31, 99, 214, 0.18);
}

.idea-lab-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 13px;
}

.idea-lab-top strong {
  color: var(--text);
}

.lab-focus {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 16px;
  align-items: center;
  margin-bottom: 18px;
  padding: 16px;
  border: 1px solid rgba(31, 99, 214, 0.14);
  border-radius: 8px;
  background:
    linear-gradient(145deg, #ffffff, #f3f8ff);
}

.ai-cube {
  display: grid;
  width: 68px;
  height: 68px;
  place-items: center;
  border: 1px solid rgba(31, 99, 214, 0.24);
  border-radius: 8px;
  background:
    linear-gradient(135deg, #1f63d6, #3dd5a7);
  box-shadow:
    0 18px 36px rgba(31, 99, 214, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.36);
  color: #fff;
  font-weight: 900;
}

.lab-focus strong {
  display: block;
  margin-bottom: 6px;
  color: #111827;
  font-size: 18px;
  line-height: 1.25;
}

.lab-focus p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.chat-board {
  display: grid;
  gap: 12px;
  margin-bottom: 18px;
}

.chat-line {
  max-width: 88%;
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: #1f2937;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
}

.chat-line.student {
  border-color: rgba(31, 99, 214, 0.28);
  background: #edf5ff;
}

.chat-line.mentor {
  justify-self: end;
  border-color: rgba(12, 107, 86, 0.28);
  background: #edf8f4;
}

.chat-line.ai {
  max-width: 100%;
  border-color: rgba(224, 122, 53, 0.3);
  background: #fff5ee;
}

.prototype-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.prototype-grid span {
  min-height: 64px;
  padding: 14px;
  border: 1px solid rgba(31, 99, 214, 0.16);
  border-radius: 8px;
  background: #fff;
  color: #1e3a8a;
  font-size: 14px;
  font-weight: 820;
}

.showcase-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.showcase-steps span {
  display: grid;
  min-height: 42px;
  place-items: center;
  border: 1px solid rgba(31, 99, 214, 0.13);
  border-radius: 8px;
  background: #ffffff;
  color: #1e3a8a;
  font-size: 13px;
  font-weight: 820;
}

.desktop-steps {
  margin-top: 16px;
}

.card-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

body.mobile-entry .card-icon {
  width: 34px;
  height: 34px;
  margin-bottom: 10px;
}

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

.audience-grid .service-card {
  min-height: 248px;
}

.compact-path-section {
  padding-block: clamp(34px, 6vw, 72px);
}

.compact-path-section .section-heading {
  margin-bottom: 24px;
}

.idea-path-row {
  display: grid;
  max-width: var(--max);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-inline: auto;
  padding: 18px;
  border: 1px solid rgba(31, 99, 214, 0.12);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(238, 246, 255, 0.9));
  box-shadow: 0 20px 58px rgba(31, 99, 214, 0.08);
}

.idea-path-row article {
  display: grid;
  justify-items: center;
  min-height: 126px;
  gap: 8px;
  padding: 18px 12px;
  border: 1px solid rgba(31, 99, 214, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  text-align: center;
}

.idea-path-row span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--blue);
  font-weight: 900;
}

.idea-path-row strong {
  color: var(--text);
  font-size: 17px;
}

.idea-path-row p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.idea-track-grid {
  display: grid;
  gap: 14px;
}

.idea-track-grid.desktop-grid {
  max-width: var(--max);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-inline: auto;
}

.idea-track-grid article,
.flow-steps,
.flow-steps div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.idea-track-grid article {
  min-height: 188px;
  padding: 24px;
}

.idea-track-grid h3 {
  color: var(--green-dark);
}

.idea-track-grid p {
  color: var(--muted);
}

.flow-steps {
  display: grid;
  gap: 10px;
  padding: 14px;
}

.flow-steps.flow-steps-card {
  box-shadow: 0 22px 60px rgba(31, 99, 214, 0.1);
}

.flow-steps div {
  display: grid;
  grid-template-columns: 52px 1fr;
  align-items: center;
  min-height: 68px;
  padding: 12px 14px;
}

.flow-steps span {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--blue);
  font-weight: 900;
}

.flow-steps strong {
  font-size: 18px;
}

.safety-panel .section-heading h2 {
  max-width: 920px;
  margin-inline: auto;
}

.safety-panel .trust-grid article {
  background: linear-gradient(180deg, #ffffff, #f9fbff);
}

.muted-card {
  opacity: 0.82;
}

.education-visual {
  background:
    linear-gradient(145deg, #ffffff 0%, #f7fbf8 58%, #edf5fb 100%);
}

.visual-topline {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
  color: var(--muted);
  font-size: 13px;
}

.visual-topline strong {
  color: var(--text);
}

.signal-map {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}

.signal-node {
  min-height: 70px;
  padding: 16px;
  border: 1px solid #d6e4dc;
  border-radius: 8px;
  background: #f7fbf8;
  color: #244034;
  font-size: 14px;
  font-weight: 760;
}

.main-node {
  grid-row: span 2;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green);
  color: #fff;
  font-size: 20px;
}

.visual-card {
  display: grid;
  grid-template-columns: 116px 1fr;
  gap: 16px;
  align-items: center;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
}

.visual-card img {
  width: 116px;
  aspect-ratio: 3 / 4;
  border-radius: 6px;
  object-fit: cover;
  object-position: top;
}

.visual-card strong,
.visual-card span {
  display: block;
}

.visual-card span {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.project-stack {
  display: grid;
  gap: 12px;
  margin-bottom: 16px;
}

.project-card-mini {
  padding: 18px;
  border: 1px solid #d6e4dc;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
}

.project-card-mini.primary-project {
  background: var(--green);
  color: #fff;
}

.project-card-mini span,
.project-card-mini strong,
.project-card-mini p {
  display: block;
}

.project-card-mini span {
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 820;
}

.project-card-mini.primary-project span,
.project-card-mini.primary-project p {
  color: rgba(255, 255, 255, 0.78);
}

.project-card-mini strong {
  margin-bottom: 6px;
  font-size: 20px;
  line-height: 1.25;
}

.project-card-mini p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
}

.keyword-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.keyword-cloud span {
  padding: 8px 10px;
  border-radius: 8px;
  background: var(--sky);
  color: #17415c;
  font-size: 13px;
  font-weight: 760;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 38px;
  text-align: center;
}

.section-heading.align-left {
  margin-inline: 0;
  text-align: left;
}

.service-grid,
.package-grid {
  display: grid;
  gap: 18px;
}

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

.service-card,
.package-card,
.telecom-panel,
.practice-board,
.proof-list article,
.contact-note,
.sync-grid article,
.mobile-line-list article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.service-card {
  display: flex;
  min-height: 312px;
  flex-direction: column;
  padding: 28px;
}

.service-card.telecom-card {
  border-color: rgba(12, 90, 66, 0.35);
  background: #f5fbf7;
}

.featured-line {
  border-color: rgba(200, 87, 62, 0.42) !important;
  background: #fff8f5 !important;
}

.featured-line .card-icon {
  background: #f9e3dc;
  color: var(--coral);
}

.card-icon {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  margin-bottom: 24px;
  border-radius: 8px;
  background: #e8f2ed;
  color: var(--green);
}

.card-icon svg {
  width: 26px;
  height: 26px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.service-card p,
.package-card p,
.proof-list p,
.practice-item p {
  color: var(--muted);
}

.service-card a {
  width: fit-content;
  margin-top: auto;
  color: var(--green);
  font-size: 15px;
  font-weight: 760;
}

.sync-grid {
  display: grid;
  max-width: var(--max);
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-inline: auto;
}

.sync-grid article {
  min-height: 210px;
  padding: 28px;
}

.sync-grid span {
  display: block;
  margin-bottom: 18px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 820;
}

.sync-grid p {
  color: var(--muted);
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1fr);
  gap: clamp(34px, 6vw, 76px);
  align-items: center;
}

.split-layout.reverse {
  grid-template-columns: minmax(360px, 1fr) minmax(0, 0.94fr);
}

.telecom-panel {
  padding: 28px;
  box-shadow: 0 20px 54px rgba(16, 44, 34, 0.08);
}

.process-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 24px;
}

.process-row span {
  display: flex;
  min-height: 66px;
  align-items: center;
  justify-content: center;
  padding: 10px;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 760;
  text-align: center;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 26px;
  color: #344139;
}

.check-list li::before {
  position: absolute;
  top: 0.56em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
  content: "";
}

.check-list.compact li {
  color: var(--muted);
}

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

.package-card {
  min-height: 192px;
  padding: 24px;
}

.package-card h3 {
  color: var(--green-dark);
  font-size: 19px;
}

.local-data-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.local-data-row div {
  min-height: 116px;
  padding: 22px;
  background: #f9fbfa;
}

.local-data-row strong,
.local-data-row span {
  display: block;
}

.local-data-row strong {
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 27px;
  line-height: 1.1;
}

.local-data-row span {
  color: var(--muted);
  font-size: 13px;
}

.practice-board {
  display: grid;
  gap: 12px;
  padding: 18px;
  background: #fff;
  box-shadow: 0 20px 54px rgba(16, 44, 34, 0.08);
}

.practice-item {
  padding: 22px;
  border-radius: 8px;
  background: #f7fbf8;
}

.practice-item span {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 760;
}

.practice-item strong {
  display: block;
  margin-bottom: 6px;
  font-size: 22px;
}

.practice-item p {
  margin-bottom: 0;
}

.proof-layout {
  display: grid;
  grid-template-columns: minmax(320px, 420px) 1fr;
  gap: 24px;
  align-items: stretch;
}

.license-figure {
  margin: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbfa;
}

.license-figure img {
  width: 100%;
  max-height: 520px;
  border-radius: 6px;
  object-fit: cover;
  object-position: top;
}

.license-figure figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.proof-list {
  display: grid;
  gap: 14px;
}

.proof-list article {
  padding: 24px;
}

.proof-list h3 {
  font-size: 20px;
}

.trust-grid {
  display: grid;
  max-width: var(--max);
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-inline: auto;
}

.trust-grid article,
.proof-card-large {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.trust-grid article {
  min-height: 210px;
  padding: 24px;
}

.trust-grid p {
  color: var(--muted);
}

.proof-layout-lite {
  grid-template-columns: minmax(300px, 380px) 1fr;
}

.proof-card-large {
  padding: 28px;
  background:
    linear-gradient(160deg, #f7fbf8, #ffffff 56%, #eef6fb);
}

.proof-card-large span,
.proof-card-large strong,
.proof-card-large p {
  display: block;
}

.proof-card-large span {
  margin-bottom: 14px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 820;
}

.proof-card-large strong {
  margin-bottom: 16px;
  color: var(--green-dark);
  font-size: 32px;
  line-height: 1.1;
}

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

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(420px, 1fr);
  gap: clamp(32px, 6vw, 76px);
  align-items: start;
}

.contact-copy h2 {
  margin-bottom: 14px;
}

.contact-note {
  margin-top: 28px;
  padding: 22px;
  background: #fff;
}

.contact-note strong,
.contact-note span {
  display: block;
}

.contact-note strong {
  margin-bottom: 6px;
}

.contact-note span {
  color: var(--muted);
}

.lead-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.lead-form label {
  display: grid;
  gap: 8px;
  color: #334038;
  font-size: 14px;
  font-weight: 700;
}

.lead-form input,
.lead-form select,
.lead-form textarea {
  width: 100%;
  min-height: 46px;
  border: 1px solid #cfdcd4;
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  font: inherit;
  font-size: 15px;
  font-weight: 500;
}

.lead-form input,
.lead-form select {
  padding: 0 13px;
}

.lead-form textarea {
  resize: vertical;
  padding: 12px 13px;
}

.lead-form input:focus,
.lead-form select:focus,
.lead-form textarea:focus {
  border-color: var(--green);
  outline: 3px solid rgba(12, 90, 66, 0.14);
}

.full-field {
  grid-column: 1 / -1;
}

.privacy-check {
  display: flex !important;
  grid-template-columns: none !important;
  align-items: flex-start;
  gap: 10px !important;
  color: var(--muted) !important;
  font-size: 13px !important;
  font-weight: 560 !important;
}

.privacy-check input {
  width: 18px;
  min-width: 18px;
  height: 18px;
  min-height: 18px;
  margin-top: 2px;
}

.form-result {
  min-height: 22px;
  margin: 0;
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 700;
}

.form-result.error {
  color: #a83d29;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 30px clamp(20px, 5vw, 56px);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer strong,
.site-footer span {
  display: block;
}

.site-footer strong {
  color: var(--text);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--green);
  font-weight: 700;
}

.mobile-entry {
  width: min(100%, 480px);
  min-height: 100vh;
  margin: 0 auto;
  background: #edf5ff;
  box-shadow: 0 0 0 1px rgba(31, 99, 214, 0.08), 0 24px 80px rgba(31, 99, 214, 0.16);
}

.mobile-hero-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
}

.mobile-nav-toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.mobile-menu-button {
  display: grid;
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  place-content: center;
  gap: 5px;
  border: 1px solid rgba(31, 99, 214, 0.16);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 10px 24px rgba(31, 99, 214, 0.1);
  cursor: pointer;
}

.mobile-menu-button span {
  display: block;
  width: 23px;
  height: 3px;
  border-radius: 999px;
  background: #111827;
}

.mobile-menu-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 16px;
  z-index: 40;
  display: none;
  width: min(320px, calc(100vw - 32px));
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 10px;
  border: 1px solid rgba(31, 99, 214, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 18px 54px rgba(31, 99, 214, 0.16);
}

.mobile-nav-toggle:checked + .mobile-menu-button {
  background: #eef6ff;
}

.mobile-nav-toggle:checked ~ .mobile-menu-panel {
  display: grid;
}

.mobile-menu-panel a {
  display: flex;
  min-height: 42px;
  align-items: center;
  padding: 0 14px;
  border-radius: 8px;
  background: #f2f8ff;
  color: #111827;
  font-size: 14px;
  font-weight: 820;
}

.mobile-back-link {
  display: inline-flex;
  min-height: 38px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border: 1px solid rgba(31, 99, 214, 0.16);
  border-radius: 8px;
  background: #ffffff;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.mobile-entry-hero,
.mobile-entry-section {
  margin: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.mobile-entry-hero {
  min-height: 604px;
  margin: 0 0 14px;
  padding: 30px 18px 22px;
  border: 0;
  border-radius: 0 0 8px 8px;
  background:
    radial-gradient(circle at 86% 18%, rgba(31, 99, 214, 0.16), transparent 26%),
    radial-gradient(circle at 15% 80%, rgba(48, 194, 154, 0.13), transparent 24%),
    linear-gradient(145deg, #ffffff 0%, #f5fbff 52%, #e4f2ff 100%);
  box-shadow: 0 18px 54px rgba(31, 99, 214, 0.12);
}

.detail-hero {
  min-height: 360px;
}

.mobile-entry-hero h1 {
  margin-bottom: 12px;
  font-size: 32px;
  line-height: 1.1;
}

.mobile-entry-hero p,
.mobile-muted {
  color: var(--muted);
}

.mobile-action-stack {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 16px 0;
}

.mobile-action-stack .button {
  width: 100%;
}

.mobile-ai-showcase {
  position: relative;
  display: grid;
  gap: 12px;
  min-height: auto;
  margin: 18px 0 12px;
  padding: 16px;
  border: 1px solid rgba(31, 99, 214, 0.14);
  border-radius: 8px;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.98), rgba(238, 246, 255, 0.92));
  box-shadow:
    0 26px 70px rgba(31, 99, 214, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.78);
}

.mobile-ai-showcase::before {
  content: none;
}

.mobile-ai-showcase::after {
  content: none;
}

.showcase-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.showcase-head strong {
  color: #111827;
  font-size: 17px;
}

.ai-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, #1f63d6, #30c29a);
  color: #fff;
  font-weight: 900;
}

.showcase-chat {
  display: grid;
  gap: 10px;
}

.idea-bubble,
.ai-bubble,
.task-bubble {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: #1f2937;
  font-size: 13px;
  font-weight: 760;
  line-height: 1.45;
}

.idea-bubble {
  justify-self: end;
  max-width: 86%;
  background: #1f63d6;
  color: #ffffff;
  box-shadow: 0 12px 24px rgba(31, 99, 214, 0.2);
}

.ai-bubble {
  justify-self: start;
  max-width: 92%;
  background: #ffffff;
}

.task-bubble {
  background: #fff5ee;
}

.showcase-input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 38px;
  gap: 8px;
  align-items: center;
  padding: 8px 8px 8px 12px;
  border: 1px solid rgba(31, 99, 214, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.88);
}

.showcase-input-row span {
  overflow: hidden;
  color: #94a3b8;
  font-size: 12px;
  font-weight: 720;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.showcase-input-row strong {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  background: #1f63d6;
  color: #ffffff;
  font-size: 20px;
  font-weight: 900;
  line-height: 1;
}

.mobile-proof-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.mobile-proof-strip div {
  min-height: 76px;
  padding: 10px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 8px 26px rgba(31, 99, 214, 0.06);
}

.mobile-proof-strip strong,
.mobile-proof-strip span {
  display: block;
}

.mobile-proof-strip strong {
  margin-bottom: 6px;
  color: var(--green);
  font-size: 17px;
  line-height: 1.08;
  word-break: keep-all;
}

.mobile-proof-strip span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.mobile-proof-strip.compact {
  grid-template-columns: 1fr;
  margin-top: 12px;
}

.mobile-proof-strip.compact div {
  min-height: 72px;
}

.mobile-entry-section {
  padding: 18px;
}

body.mobile-entry .compact-path-section {
  padding: 18px 12px;
}

body.mobile-entry .idea-path-row {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
  padding: 10px;
}

body.mobile-entry .idea-path-row article {
  min-height: 104px;
  gap: 6px;
  padding: 12px 4px;
}

body.mobile-entry .idea-path-row span {
  width: 32px;
  height: 32px;
  font-size: 12px;
}

body.mobile-entry .idea-path-row strong {
  font-size: 12px;
  line-height: 1.25;
}

body.mobile-entry .idea-path-row p {
  font-size: 11px;
  line-height: 1.35;
}

body.mobile-entry .idea-track-grid {
  gap: 10px;
}

body.mobile-entry .idea-track-grid article {
  min-height: auto;
  padding: 14px;
}

body.mobile-entry .idea-track-grid h3 {
  margin-bottom: 6px;
  font-size: 17px;
}

body.mobile-entry .idea-track-grid p {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
}

body.mobile-entry .flow-steps {
  gap: 8px;
  padding: 10px;
}

body.mobile-entry .flow-steps div {
  min-height: 56px;
  padding: 10px 12px;
}

body.mobile-entry .flow-steps span {
  width: 32px;
  height: 32px;
  font-size: 12px;
}

body.mobile-entry .flow-steps strong {
  font-size: 15px;
}

.mobile-entry-section h2 {
  margin-bottom: 12px;
  font-size: 24px;
}

.mobile-section-intro {
  margin-bottom: 12px;
  color: var(--muted);
  line-height: 1.55;
}

.company-service-section {
  background:
    linear-gradient(145deg, #ffffff 0%, #f2f8ff 100%);
}

.service-entry-grid {
  display: grid;
  gap: 10px;
}

.service-entry-grid article {
  display: grid;
  grid-template-columns: 52px 1fr;
  column-gap: 12px;
  align-items: start;
  padding: 14px;
  border: 1px solid rgba(31, 99, 214, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
}

.service-entry-grid article.primary-entry {
  border-color: rgba(31, 99, 214, 0.24);
  background: #eef6ff;
}

.service-entry-grid span {
  grid-row: span 2;
  display: grid;
  min-height: 34px;
  place-items: center;
  border-radius: 8px;
  background: #ffffff;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
}

.service-entry-grid h3 {
  margin: 0 0 5px;
  font-size: 17px;
}

.service-entry-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.service-points {
  grid-column: 2;
  display: grid;
  gap: 5px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

.service-points li {
  position: relative;
  padding-left: 12px;
  color: #4b5f73;
  font-size: 12px;
  font-weight: 720;
  line-height: 1.4;
}

.service-points li::before {
  position: absolute;
  top: 8px;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: var(--blue);
  content: "";
}

.project-example-section {
  background:
    linear-gradient(145deg, #ffffff 0%, #f8fbff 54%, #f2fff9 100%);
}

.secondary-hub-section {
  background:
    linear-gradient(145deg, #ffffff 0%, #f8fbff 56%, #eef8ff 100%);
}

.secondary-link-grid {
  display: grid;
  gap: 10px;
}

.secondary-link-grid a {
  display: grid;
  gap: 4px;
  padding: 14px;
  border: 1px solid rgba(31, 99, 214, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 8px 24px rgba(31, 99, 214, 0.05);
}

.secondary-link-grid strong {
  color: #111827;
  font-size: 16px;
}

.secondary-link-grid span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.example-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.example-grid article {
  min-height: 132px;
  padding: 12px;
  border: 1px solid rgba(31, 99, 214, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 8px 24px rgba(31, 99, 214, 0.05);
}

.example-grid span {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  margin-bottom: 8px;
  padding: 0 8px;
  border-radius: 999px;
  background: #eef6ff;
  color: var(--blue);
  font-size: 11px;
  font-weight: 900;
}

.example-grid h3 {
  margin: 0 0 6px;
  color: #111827;
  font-size: 15px;
  line-height: 1.25;
}

.example-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

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

.mobile-line-list article {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbfa;
}

.mobile-line-list h3 {
  margin-bottom: 6px;
  font-size: 17px;
}

.mobile-line-list p {
  margin-bottom: 0;
  color: var(--muted);
}

.detail-hub-section {
  background:
    linear-gradient(145deg, #ffffff 0%, #f7fbff 100%);
}

.detail-disclosure {
  margin-top: 10px;
  border: 1px solid rgba(31, 99, 214, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
}

.detail-disclosure summary {
  display: flex;
  min-height: 52px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 14px;
  cursor: pointer;
  list-style: none;
}

.detail-disclosure summary::-webkit-details-marker {
  display: none;
}

.detail-disclosure summary::marker {
  content: "";
}

.detail-disclosure summary span {
  color: #111827;
  font-size: 16px;
  font-weight: 860;
}

.detail-disclosure summary strong {
  min-width: 42px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  text-align: right;
}

.detail-disclosure[open] summary {
  border-bottom: 1px solid rgba(31, 99, 214, 0.1);
}

.detail-disclosure[open] summary strong {
  font-size: 0;
}

.detail-disclosure[open] summary strong::after {
  content: "收起";
  font-size: 12px;
}

.detail-card-list {
  display: grid;
  gap: 10px;
  padding: 12px;
}

.detail-card-list.no-side-padding {
  padding: 0;
}

.detail-spacer {
  margin-top: 12px;
}

.detail-card-list article {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbff;
}

.detail-card-list h3 {
  margin-bottom: 6px;
  font-size: 16px;
}

.detail-card-list p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.mobile-process-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 14px;
}

.mobile-process-row span {
  display: flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 8px;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 760;
  text-align: center;
}

.mobile-license {
  margin: 0 0 14px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbfa;
}

.mobile-license img {
  width: 100%;
  max-height: 360px;
  border-radius: 6px;
  object-fit: cover;
  object-position: top;
}

.mobile-license figcaption {
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.sync-mini-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 14px;
}

.sync-mini-list span {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbfa;
  color: var(--green);
  font-weight: 780;
}

.mobile-lead-form {
  padding: 0;
  border: 0;
  box-shadow: none;
}

@media (max-width: 980px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    inset: 76px 16px auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: var(--shadow);
  }

  body.nav-open .site-nav {
    display: flex;
  }

  .site-nav a {
    justify-content: center;
  }

  .hero,
  .split-layout,
  .split-layout.reverse,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 56px;
  }

  .hero-visual {
    max-width: 640px;
  }

  .service-grid,
  .package-grid,
  .local-data-row,
  .proof-layout,
  .sync-grid,
  .trust-grid,
  .audience-grid,
  .idea-track-grid.desktop-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .site-header {
    min-height: 68px;
    padding: 12px 16px;
  }

  .brand {
    min-width: 0;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .brand strong {
    max-width: 178px;
    font-size: 14px;
  }

  .brand-company {
    max-width: 178px;
    overflow: hidden;
    font-size: 14px;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .brand small {
    display: none;
  }

  .brand-channel-links {
    max-width: 178px;
    overflow: hidden;
    font-size: 11px;
    white-space: nowrap;
  }

  .site-nav {
    inset: 68px 12px auto;
  }

  .section-band,
  .section-block {
    padding: 54px 16px;
  }

  .hero {
    gap: 34px;
  }

  h1 {
    font-size: clamp(36px, 11vw, 46px);
    line-height: 1.08;
  }

  .idea-site h1 {
    font-size: clamp(38px, 12vw, 52px);
  }

  .text-keep {
    white-space: normal;
  }

  .headline-line {
    white-space: normal;
  }

  h2 {
    font-size: 30px;
  }

  .hero-copy > p,
  .section-heading p,
  .contact-copy p {
    font-size: 16px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .proof-strip {
    grid-template-columns: 1fr;
  }

  .visual-topline,
  .visual-card {
    grid-template-columns: 1fr;
  }

  .visual-card img {
    width: 100%;
    max-height: 240px;
  }

  .signal-map,
  .process-row,
  .lead-form {
    grid-template-columns: 1fr;
  }

  .main-node {
    min-height: 96px;
  }

  .service-card,
  .telecom-panel,
  .package-card,
  .proof-list article,
  .lead-form {
    padding: 22px;
  }

  .site-footer {
    display: grid;
  }

  .mobile-hero-header .brand strong {
    max-width: 236px;
  }

  .mobile-entry-hero,
  .mobile-entry-section {
    margin: 12px;
  }

  .mobile-entry-hero {
    padding: 24px 18px;
  }

  body.mobile-entry .mobile-entry-hero {
    margin: 0 0 14px;
    padding: 30px 18px 24px;
    border-radius: 0 0 8px 8px;
  }

  .mobile-entry-hero h1 {
    font-size: 31px;
    line-height: 1.12;
  }

  .idea-site .mobile-entry-hero h1 {
    font-size: 33px;
    line-height: 1.06;
  }

  .mobile-entry-section {
    padding: 16px;
  }

  .mobile-entry-section h2 {
    font-size: 24px;
    line-height: 1.18;
  }
}

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

/* v11 visual polish: mobile-first AI education product style. */
body.idea-site {
  --bg: #eef5ff;
  --surface-soft: #edf6ff;
  --text: #0b1324;
  --muted: #526071;
  --line: #d8e6f6;
  --green: #08a46d;
  --green-dark: #047857;
  --blue: #1767e8;
  --shadow: 0 22px 60px rgba(23, 103, 232, 0.13);
  background:
    linear-gradient(180deg, #eaf4ff 0%, #f8fbff 44%, #eef5ff 100%);
}

html:has(body.mobile-entry) {
  background:
    linear-gradient(90deg, #dcecff 0%, #f7fbff 50%, #dcecff 100%);
}

.mobile-entry {
  background: #f7fbff;
  box-shadow:
    0 0 0 1px rgba(23, 103, 232, 0.08),
    0 30px 90px rgba(23, 103, 232, 0.2);
}

.idea-site .mobile-hero-header {
  min-height: 74px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(216, 230, 246, 0.72);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 10px 34px rgba(15, 23, 42, 0.06);
}

.idea-site .brand {
  gap: 13px;
}

.idea-site .brand-mark {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #1d6ff2 0%, #0fb981 100%);
  box-shadow: 0 12px 26px rgba(23, 103, 232, 0.22);
  font-size: 18px;
}

.idea-site .brand-company {
  color: #0b1324;
  font-size: 14px;
  font-weight: 900;
}

.idea-site .brand-channel-links {
  color: #687589;
  font-size: 11px;
}

.mobile-menu-button,
.mobile-back-link {
  border-color: rgba(23, 103, 232, 0.14);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 12px 28px rgba(23, 103, 232, 0.12);
}

.mobile-menu-panel {
  border-color: rgba(23, 103, 232, 0.12);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 22px 60px rgba(15, 23, 42, 0.14);
}

.mobile-menu-panel a {
  background: #f4f8ff;
}

body.mobile-entry .mobile-entry-hero {
  min-height: auto;
  margin: 0 10px 16px;
  padding: 38px 18px 18px;
  border: 1px solid rgba(216, 230, 246, 0.78);
  border-top: 0;
  border-radius: 0 0 8px 8px;
  background:
    linear-gradient(rgba(23, 103, 232, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 103, 232, 0.035) 1px, transparent 1px),
    linear-gradient(142deg, #ffffff 0%, #f5fbff 47%, #e7f4ff 100%);
  background-size: 34px 34px, 34px 34px, auto;
  box-shadow: 0 22px 64px rgba(23, 103, 232, 0.16);
}

.idea-site .mobile-entry-hero h1 {
  margin-bottom: 14px;
  color: #07111f;
  font-size: 38px;
  font-weight: 950;
  letter-spacing: 0;
  line-height: 1.02;
}

.idea-site .mobile-entry-hero .accent-blue {
  background: linear-gradient(90deg, #1767e8 0%, #0fac78 96%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.idea-site .mobile-entry-hero .accent-green {
  background: linear-gradient(90deg, #0fac78 0%, #08a46d 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.mobile-entry-hero p {
  color: #526071;
  font-size: 15px;
  font-weight: 560;
  line-height: 1.78;
}

.mobile-action-stack {
  gap: 12px;
  margin: 20px 0;
}

.mobile-action-stack .button {
  min-height: 52px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 900;
}

.idea-site .button.primary {
  background: linear-gradient(135deg, #1767e8 0%, #1c7bf4 100%);
  box-shadow: 0 16px 32px rgba(23, 103, 232, 0.28);
}

.idea-site .button.secondary {
  border-color: rgba(23, 103, 232, 0.14);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.06);
}

.mobile-ai-showcase {
  gap: 14px;
  margin: 20px 0 14px;
  padding: 18px;
  border-color: rgba(23, 103, 232, 0.16);
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.98), rgba(239, 247, 255, 0.92));
  box-shadow:
    0 28px 70px rgba(23, 103, 232, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.86);
}

.ai-mark {
  background: linear-gradient(135deg, #1767e8, #0fb981);
  box-shadow: 0 14px 28px rgba(23, 103, 232, 0.2);
}

.showcase-head strong {
  font-size: 18px;
  font-weight: 950;
}

.idea-bubble,
.ai-bubble,
.task-bubble {
  border-color: rgba(216, 230, 246, 0.95);
  border-radius: 8px;
  font-size: 13px;
}

.idea-bubble {
  background: linear-gradient(135deg, #1767e8, #1d73ef);
}

.task-bubble {
  border-color: rgba(8, 164, 109, 0.2);
  background: #effcf7;
}

.showcase-steps {
  gap: 7px;
}

.showcase-steps span {
  min-height: 38px;
  border-color: rgba(23, 103, 232, 0.12);
  background: #ffffff;
  color: #174fb1;
  font-size: 12px;
}

.mobile-proof-strip {
  gap: 9px;
}

.mobile-proof-strip div {
  min-height: 86px;
  border: 0;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 14px 32px rgba(23, 103, 232, 0.1);
}

.mobile-proof-strip strong {
  color: #067a55;
  font-size: 16px;
}

.mobile-entry-section {
  margin: 14px 10px;
  padding: 20px 18px;
  border: 1px solid rgba(216, 230, 246, 0.86);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 14px 42px rgba(23, 103, 232, 0.08);
}

.mobile-entry-section h2 {
  margin-bottom: 10px;
  color: #07111f;
  font-size: 25px;
  font-weight: 940;
}

.mobile-section-intro {
  margin-bottom: 16px;
  color: #5b6879;
  font-size: 14px;
}

.company-service-section,
.project-example-section,
.secondary-hub-section {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(244, 249, 255, 0.96));
}

.service-entry-grid {
  gap: 12px;
}

.service-entry-grid article {
  grid-template-columns: 58px minmax(0, 1fr);
  padding: 16px;
  border: 1px solid rgba(216, 230, 246, 0.95);
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(23, 103, 232, 0.07);
}

.service-entry-grid article.primary-entry {
  border-color: rgba(23, 103, 232, 0.18);
  background: linear-gradient(145deg, #ffffff 0%, #eef6ff 100%);
}

.service-entry-grid span {
  min-height: 42px;
  background: linear-gradient(135deg, #eaf3ff, #effcf7);
  color: #1767e8;
  box-shadow: inset 0 0 0 1px rgba(23, 103, 232, 0.08);
}

.service-entry-grid h3 {
  font-size: 18px;
  font-weight: 920;
}

.service-entry-grid p,
.service-points li {
  color: #526071;
}

body.mobile-entry .example-grid {
  grid-template-columns: 1fr;
  gap: 12px;
}

.example-grid article {
  min-height: 112px;
  padding: 16px;
  border-color: rgba(216, 230, 246, 0.95);
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(23, 103, 232, 0.07);
}

.example-grid span {
  background: #edf6ff;
  color: #1767e8;
}

.example-grid h3 {
  font-size: 18px;
  font-weight: 920;
}

.example-grid p {
  font-size: 13px;
}

.mobile-line-list article {
  padding: 16px;
  border-color: rgba(216, 230, 246, 0.95);
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(23, 103, 232, 0.06);
}

.mobile-line-list h3 {
  color: #0b1324;
  font-weight: 920;
}

.card-icon {
  background: linear-gradient(135deg, #edf6ff, #effcf7);
  color: #1767e8;
}

body.mobile-entry .idea-path-row {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 12px;
  border-color: rgba(216, 230, 246, 0.95);
  background: linear-gradient(145deg, #ffffff, #f1f7ff);
}

body.mobile-entry .idea-path-row article {
  min-height: 126px;
  padding: 14px 10px;
  border-color: rgba(216, 230, 246, 0.95);
  box-shadow: 0 10px 24px rgba(23, 103, 232, 0.06);
}

body.mobile-entry .idea-path-row span {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #1767e8, #0fb981);
  color: #ffffff;
}

body.mobile-entry .idea-path-row strong {
  color: #07111f;
  font-size: 14px;
  font-weight: 920;
}

body.mobile-entry .idea-path-row p {
  color: #5b6879;
  font-size: 12px;
}

.secondary-link-grid {
  gap: 12px;
}

.secondary-link-grid a {
  padding: 16px;
  border-color: rgba(216, 230, 246, 0.95);
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(23, 103, 232, 0.07);
}

.secondary-link-grid strong {
  font-weight: 920;
}

.mobile-lead-form {
  display: grid;
  gap: 13px;
}

.mobile-lead-form label {
  color: #334155;
  font-size: 13px;
  font-weight: 820;
}

.lead-form input,
.lead-form select,
.lead-form textarea {
  border-color: rgba(203, 216, 232, 0.95);
  background: #ffffff;
  font-size: 14px;
}

.lead-form input:focus,
.lead-form select:focus,
.lead-form textarea:focus {
  border-color: #1767e8;
  outline: 3px solid rgba(23, 103, 232, 0.14);
}

.detail-hero {
  background:
    linear-gradient(rgba(23, 103, 232, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 103, 232, 0.035) 1px, transparent 1px),
    linear-gradient(142deg, #ffffff 0%, #f5fbff 52%, #e8f6ff 100%);
  background-size: 34px 34px, 34px 34px, auto;
}

@media (min-width: 700px) {
  .mobile-entry {
    width: min(100%, 540px);
  }
}

/* v12 visual polish: mainstream AI education homepage */
body.mobile-entry .mobile-entry-hero {
  margin: 0 8px 14px;
  padding: 28px 16px 16px;
  box-shadow: 0 18px 54px rgba(23, 103, 232, 0.14);
}

.idea-site .mobile-entry-hero h1 {
  margin-bottom: 10px;
  font-size: 35px;
  line-height: 1.04;
}

.mobile-entry-hero p {
  font-size: 14.5px;
  line-height: 1.62;
}

.mobile-action-stack {
  gap: 10px;
  margin: 14px 0;
}

.mobile-action-stack .button {
  min-height: 48px;
}

.mobile-ai-showcase {
  overflow: hidden;
  min-height: 318px;
  gap: 10px;
  margin: 14px 0 12px;
  padding: 14px;
  border-color: rgba(23, 103, 232, 0.2);
  background: #f5fbff;
  box-shadow:
    0 20px 52px rgba(23, 103, 232, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.86);
}

.mobile-ai-showcase::before {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(248, 252, 255, 0.36) 46%, rgba(255, 255, 255, 0.9) 100%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.38) 0%, rgba(255, 255, 255, 0.12) 58%, rgba(255, 255, 255, 0) 100%);
  content: "";
}

.hero-photo-frame {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  border-radius: 8px;
  background: #eaf4ff;
}

.hero-photo-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  opacity: 1;
}

.mobile-ai-showcase > :not(.hero-photo-frame) {
  position: relative;
  z-index: 2;
}

.showcase-head {
  margin-top: 2px;
}

.showcase-head strong {
  color: #07111f;
  font-size: 17px;
}

.idea-bubble,
.ai-bubble,
.task-bubble {
  padding: 10px 12px;
  font-size: 12.5px;
  line-height: 1.42;
}

.idea-bubble {
  margin-left: 44px;
}

.ai-bubble {
  margin-right: 42px;
}

.task-bubble {
  background: rgba(255, 252, 248, 0.9);
}

.showcase-steps {
  gap: 6px;
}

.showcase-steps span {
  min-height: 34px;
  padding: 6px 5px;
  font-size: 11.5px;
  background: rgba(255, 255, 255, 0.9);
}

.showcase-input-row {
  margin-top: 0;
  background: rgba(255, 255, 255, 0.92);
}

.mobile-proof-strip div {
  min-height: 72px;
  padding: 12px 8px;
}

.mobile-proof-strip strong {
  font-size: 15px;
}

.mobile-proof-strip span {
  font-size: 11.5px;
}

.mobile-entry-section {
  margin: 12px 8px;
  padding: 18px 16px;
}

.mobile-entry-section h2 {
  font-size: 24px;
}

.service-entry-grid article,
.example-grid article,
.mobile-line-list article,
.secondary-link-grid a {
  border-radius: 8px;
}

.project-example-section .example-grid article {
  min-height: 96px;
}

.secondary-hub-section {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(238, 247, 255, 0.96));
}

/* v13: align mobile web visual rhythm with mini-program */
body.idea-site {
  background: #f4f8ff;
}

html:has(body.mobile-entry) {
  background: linear-gradient(90deg, #dcecff 0%, #f8fbff 50%, #dcecff 100%);
}

.mobile-entry {
  background: #f4f8ff;
}

.idea-site .mobile-hero-header {
  min-height: 72px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 10px 30px rgba(31, 99, 214, 0.08);
}

.idea-site .brand-mark {
  background: linear-gradient(135deg, #1f63d6, #18b48a);
}

body.mobile-entry .mobile-entry-hero {
  margin: 0 0 12px;
  padding: 26px 14px 14px;
  border: 0;
  border-radius: 0 0 8px 8px;
  background:
    radial-gradient(circle at 86% 18%, rgba(31, 99, 214, 0.16), transparent 26%),
    radial-gradient(circle at 16% 82%, rgba(48, 194, 154, 0.13), transparent 24%),
    linear-gradient(145deg, #ffffff 0%, #f5fbff 52%, #e4f2ff 100%);
  box-shadow: 0 18px 56px rgba(31, 99, 214, 0.12);
}

.idea-site .mobile-entry-hero h1 {
  font-size: 33px;
  line-height: 1.06;
}

.mobile-entry-hero p {
  color: #4f5f72;
  font-size: 14px;
  line-height: 1.68;
}

.mobile-action-stack .button {
  min-height: 46px;
  border-radius: 8px;
}

.mobile-ai-showcase {
  min-height: 326px;
  margin: 14px 0 12px;
  padding: 13px;
  border-color: rgba(31, 99, 214, 0.13);
  box-shadow:
    0 20px 58px rgba(31, 99, 214, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.78);
}

.hero-photo-frame img {
  object-position: center top;
}

.idea-bubble {
  margin-left: 48px;
  box-shadow: 0 13px 28px rgba(31, 99, 214, 0.18);
}

.ai-bubble {
  margin-right: 46px;
  background: rgba(255, 255, 255, 0.94);
}

.task-bubble {
  border-color: rgba(242, 216, 199, 0.95);
  background: rgba(255, 245, 238, 0.94);
}

.showcase-input-row {
  padding: 8px 8px 8px 12px;
  border-color: rgba(31, 99, 214, 0.12);
}

.showcase-input-row strong {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.mobile-proof-strip {
  gap: 8px;
}

.mobile-proof-strip div {
  min-height: 68px;
  border: 1px solid rgba(216, 230, 246, 0.9);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 10px 26px rgba(31, 99, 214, 0.06);
}

.mobile-entry-section {
  margin: 11px 10px;
  padding: 17px 15px;
  border-color: rgba(216, 230, 246, 0.95);
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(31, 99, 214, 0.06);
}

.mobile-entry-section h2 {
  margin-bottom: 8px;
  font-size: 23px;
  line-height: 1.18;
}

.mobile-section-intro {
  margin-bottom: 14px;
  font-size: 13.5px;
  line-height: 1.62;
}

.service-entry-grid article {
  display: block;
  padding: 15px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 8px 24px rgba(31, 99, 214, 0.05);
}

.service-entry-grid article.primary-entry {
  background: #eef6ff;
}

.service-entry-grid span {
  display: inline-flex;
  width: auto;
  min-width: 42px;
  min-height: 28px;
  align-items: center;
  justify-content: center;
  margin-bottom: 9px;
  padding: 0 10px;
  border-radius: 8px;
  font-size: 12px;
}

.service-entry-grid h3,
.example-grid h3,
.mobile-line-list h3 {
  font-size: 17px;
}

.service-entry-grid p,
.service-points li,
.example-grid p,
.mobile-line-list p {
  font-size: 13px;
  line-height: 1.55;
}

.service-points {
  margin-top: 9px;
}

.example-grid article,
.mobile-line-list article,
.secondary-link-grid a {
  padding: 15px;
  box-shadow: 0 8px 24px rgba(31, 99, 214, 0.05);
}

body.mobile-entry .idea-path-row {
  gap: 10px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.82);
}

body.mobile-entry .idea-path-row article {
  min-height: 108px;
  padding: 12px 8px;
}

body.mobile-entry .idea-path-row span {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.lead-form input,
.lead-form select,
.lead-form textarea {
  border-radius: 8px;
  background: #fbfdff;
}

.mobile-lead-form .button {
  min-height: 46px;
  border-radius: 8px;
}

@media (min-width: 700px) {
  .mobile-entry {
    width: min(100%, 520px);
  }
}

/* v14: closer reconstruction of the selected reference images */
.mobile-entry {
  background: #f7fbff;
}

body.mobile-entry .mobile-entry-hero {
  position: relative;
  overflow: hidden;
  padding: 30px 18px 18px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.78) 45%, rgba(239, 248, 255, 0.62) 100%),
    linear-gradient(145deg, #ffffff 0%, #f4fbff 52%, #e4f2ff 100%);
}

.idea-site .mobile-entry-hero h1 {
  font-size: clamp(34px, 7vw, 62px);
  line-height: 0.98;
}

.mobile-action-stack {
  max-width: 380px;
}

.mobile-ai-showcase {
  border-radius: 8px;
}

.mobile-ai-showcase::before {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0) 0%, rgba(248, 252, 255, 0.3) 42%, rgba(255, 255, 255, 0.88) 100%),
    linear-gradient(90deg, rgba(255, 255, 255, 0.28) 0%, rgba(255, 255, 255, 0.08) 60%, rgba(255, 255, 255, 0) 100%);
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 8px;
}

.section-title-row h2 {
  margin-bottom: 0;
}

.section-title-row a {
  flex: 0 0 auto;
  color: #4d6178;
  font-size: 13px;
  font-weight: 850;
}

.project-image-card {
  overflow: hidden;
  padding: 0 0 15px;
}

.project-image-card img {
  width: 100%;
  height: 118px;
  object-fit: cover;
  border-bottom: 1px solid rgba(216, 230, 246, 0.88);
}

.project-image-card span,
.project-image-card h3,
.project-image-card p {
  margin-right: 15px;
  margin-left: 15px;
}

.project-image-card span {
  margin-top: 12px;
}

.parent-insight-section {
  overflow: hidden;
  background:
    linear-gradient(145deg, #f7fbff 0%, #edf6ff 100%);
}

.parent-insight-panel {
  display: grid;
  gap: 14px;
}

.parent-visual {
  overflow: hidden;
  min-height: 190px;
  border-radius: 8px;
  background: #dceeff;
}

.parent-visual img {
  width: 100%;
  height: 100%;
  min-height: 190px;
  object-fit: cover;
  object-position: left center;
}

.parent-insight-section .mobile-line-list {
  gap: 10px;
}

.parent-insight-section .mobile-line-list article {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 8px 12px;
  padding: 13px;
  background: rgba(255, 255, 255, 0.92);
}

.parent-insight-section .card-icon {
  grid-row: span 2;
  margin: 0;
}

.parent-insight-section .mobile-line-list h3,
.parent-insight-section .mobile-line-list p {
  margin: 0;
}

@media (min-width: 760px) {
  .mobile-entry {
    width: min(100%, 853px);
  }

  .idea-site .mobile-hero-header {
    min-height: 96px;
    padding: 18px 32px;
  }

  .idea-site .brand-mark {
    width: 58px;
    height: 58px;
    font-size: 24px;
  }

  .brand-company,
  .brand strong {
    font-size: 20px;
  }

  .brand-channel-links,
  .brand small {
    font-size: 14px;
  }

  .mobile-menu-button {
    width: 56px;
    height: 56px;
  }

  body.mobile-entry .mobile-entry-hero {
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    column-gap: 22px;
    align-items: start;
    min-height: 720px;
    padding: 54px 32px 34px;
  }

  .mobile-entry-hero h1,
  .mobile-entry-hero p,
  .mobile-action-stack,
  .mobile-proof-strip {
    grid-column: 1;
  }

  .mobile-entry-hero p {
    max-width: 360px;
    margin-bottom: 0;
    font-size: 17px;
    line-height: 1.72;
  }

  .mobile-action-stack {
    display: grid;
    grid-template-columns: 1fr 1fr;
    margin: 26px 0 30px;
  }

  .mobile-action-stack .button {
    min-height: 56px;
    font-size: 16px;
  }

  .mobile-ai-showcase {
    grid-column: 2;
    grid-row: 1 / span 5;
    align-self: stretch;
    min-height: 575px;
    margin: 0;
    padding: 28px;
    box-shadow: 0 28px 76px rgba(31, 99, 214, 0.18);
  }

  .hero-photo-frame {
    border-radius: 8px;
  }

  .hero-photo-frame img {
    object-position: center top;
  }

  .showcase-head strong {
    font-size: 20px;
  }

  .idea-bubble,
  .ai-bubble,
  .task-bubble {
    max-width: 84%;
    padding: 14px 16px;
    font-size: 15px;
  }

  .idea-bubble {
    margin-top: 28px;
    margin-left: 96px;
  }

  .ai-bubble {
    margin-right: 96px;
  }

  .showcase-steps span {
    min-height: 58px;
    font-size: 13px;
  }

  .showcase-input-row {
    margin-top: 12px;
    padding: 12px 12px 12px 18px;
  }

  .mobile-proof-strip {
    align-self: end;
    margin-top: 8px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .mobile-entry-section {
    margin: 18px 32px;
    padding: 26px;
  }

  .mobile-entry-section h2 {
    font-size: 28px;
  }

  .mobile-section-intro {
    font-size: 15px;
  }

  .service-entry-grid,
  body.mobile-entry .example-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .service-entry-grid article {
    min-height: 190px;
    padding: 22px;
  }

  .service-entry-grid span {
    min-height: 54px;
    min-width: 54px;
    border-radius: 999px;
    font-size: 13px;
  }

  .project-image-card img {
    height: 128px;
  }

  .parent-insight-panel {
    grid-template-columns: 0.92fr 1.35fr;
    align-items: stretch;
  }

  .parent-visual,
  .parent-visual img {
    min-height: 296px;
  }

  .parent-insight-section {
    padding: 28px;
  }

  body.mobile-entry .idea-path-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    padding: 20px;
  }

  body.mobile-entry .idea-path-row article {
    min-height: 146px;
  }

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

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

/* v30: compact legal footer and privacy page. */
.company-site-footer {
  width: min(100%, 1100px);
  margin: 10px auto 0;
  padding: 0 12px 18px;
  color: #64748b;
  font-size: 11px;
  line-height: 1.5;
}

.company-site-footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 4px 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(31, 99, 214, 0.1);
  text-align: center;
}

.company-site-footer-name {
  color: #334155;
  font-size: 11.5px;
}

.company-site-footer-summary {
  flex-basis: 100%;
  margin: 0;
  color: #64748b;
}

.company-site-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 12px;
}

.company-site-footer a {
  color: #1767e8;
  text-decoration: none;
}

.company-site-footer a:hover,
.company-site-footer a:focus-visible,
.privacy-check a:hover,
.privacy-check a:focus-visible {
  text-decoration: underline;
}

.company-site-footer-copyright {
  color: #94a3b8;
}

.company-site-footer-sites {
  flex-basis: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 10px;
  padding-top: 3px;
  color: #7b8797;
}

.company-site-footer-sites > span {
  color: #475569;
  font-weight: 800;
}

.company-site-footer-sites nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 10px;
}

.privacy-check a {
  margin: 0 2px;
  color: #1767e8;
  font-weight: 800;
}

.privacy-hero {
  min-height: auto;
}

.privacy-content {
  display: grid;
  gap: 0;
}

.privacy-content article {
  padding: 14px 0;
  border-bottom: 1px solid rgba(31, 99, 214, 0.09);
}

.privacy-content article:last-child {
  border-bottom: 0;
}

.privacy-content h2 {
  margin: 0 0 6px;
  font-size: 18px;
}

.privacy-content p {
  margin: 0;
  color: #475569;
  font-size: 14px;
  line-height: 1.75;
}

@media (max-width: 759px) {
  .company-site-footer-inner {
    display: grid;
    gap: 5px;
  }

  .privacy-hero {
    padding-top: 22px;
    padding-bottom: 20px;
  }
}

/* v15: keep tablet-width previews mobile-like and compress image-heavy sections */
@media (max-width: 759px) {
  body.mobile-entry .mobile-entry-hero {
    padding: 20px 12px 12px;
  }

  .idea-site .mobile-entry-hero h1 {
    margin-bottom: 8px;
    font-size: clamp(30px, 8.5vw, 36px);
    line-height: 1.02;
  }

  .mobile-entry-hero p {
    font-size: 13px;
    line-height: 1.55;
  }

  .mobile-action-stack {
    gap: 8px;
    margin: 10px 0;
  }

  .mobile-action-stack .button {
    min-height: 42px;
    font-size: 13px;
  }

  .mobile-ai-showcase {
    min-height: 264px;
    margin: 10px 0;
    padding: 10px;
  }

  .showcase-head {
    gap: 8px;
  }

  .ai-mark {
    width: 40px;
    height: 40px;
    font-size: 16px;
  }

  .showcase-head strong {
    font-size: 15px;
  }

  .idea-bubble,
  .ai-bubble,
  .task-bubble {
    padding: 8px 10px;
    font-size: 11.5px;
    line-height: 1.34;
  }

  .idea-bubble {
    margin-left: 34px;
  }

  .ai-bubble {
    margin-right: 34px;
  }

  .showcase-steps span {
    min-height: 30px;
    padding: 4px;
    font-size: 10.5px;
  }

  .showcase-input-row {
    padding: 6px 7px 6px 10px;
  }

  .showcase-input-row span {
    font-size: 11.5px;
  }

  .showcase-input-row strong {
    width: 34px;
    height: 34px;
  }

  .mobile-proof-strip div {
    min-height: 58px;
    padding: 9px 6px;
  }

  .mobile-proof-strip strong {
    font-size: 13px;
  }

  .mobile-proof-strip span {
    font-size: 10.5px;
  }

  .mobile-entry-section {
    margin: 9px 8px;
    padding: 14px 12px;
  }

  .mobile-entry-section h2 {
    font-size: 21px;
  }

  .mobile-section-intro {
    margin-bottom: 10px;
    font-size: 12.5px;
    line-height: 1.5;
  }

  .service-entry-grid,
  body.mobile-entry .example-grid,
  .mobile-line-list,
  .secondary-link-grid {
    gap: 9px;
  }

  .service-entry-grid article,
  .example-grid article,
  .mobile-line-list article,
  .secondary-link-grid a {
    padding: 12px;
  }

  .project-image-card {
    padding-bottom: 11px;
  }

  .project-image-card img {
    height: 88px;
  }

  .project-image-card span,
  .project-image-card h3,
  .project-image-card p {
    margin-right: 12px;
    margin-left: 12px;
  }

  .project-image-card span {
    margin-top: 9px;
  }

  .parent-visual,
  .parent-visual img {
    min-height: 148px;
  }

  .parent-insight-section .mobile-line-list article {
    grid-template-columns: 36px minmax(0, 1fr);
    padding: 10px;
  }

  .parent-insight-section .card-icon {
    width: 32px;
    height: 32px;
  }

  body.mobile-entry .idea-path-row {
    gap: 8px;
    padding: 9px;
  }

  body.mobile-entry .idea-path-row article {
    min-height: 92px;
    padding: 10px 7px;
  }

  body.mobile-entry .idea-path-row strong {
    font-size: 13px;
  }

  body.mobile-entry .idea-path-row p {
    font-size: 10.5px;
  }
}

/* v16: tighten image-heavy mobile preview without changing the approved direction */
@media (min-width: 520px) and (max-width: 759px) {
  .mobile-entry {
    width: min(100%, 520px);
  }
}

@media (max-width: 759px) {
  .mobile-ai-showcase {
    min-height: 246px;
  }

  .hero-photo-frame img {
    object-position: center 18%;
  }

  .project-image-card img {
    height: clamp(92px, 19vw, 108px);
    object-position: center top;
  }

  .parent-insight-panel {
    gap: 10px;
  }

  .parent-visual {
    height: clamp(132px, 29vw, 164px);
    min-height: 0;
  }

  .parent-visual img {
    height: 100%;
    min-height: 0;
    object-fit: cover;
    object-position: 34% center;
  }

  .parent-insight-section .mobile-line-list {
    gap: 8px;
  }

  .parent-insight-section .mobile-line-list article {
    min-height: 0;
  }
}

/* v17: convert large photo blocks into compact icon-like image accents */
.project-image-card {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 6px 12px;
  align-items: start;
  padding: 14px;
}

.project-image-card img {
  grid-row: 1 / span 3;
  width: 64px;
  height: 64px;
  border: 1px solid rgba(216, 230, 246, 0.95);
  border-radius: 16px;
  object-fit: cover;
  object-position: center;
  box-shadow: 0 12px 26px rgba(31, 99, 214, 0.12);
}

.project-image-card span,
.project-image-card h3,
.project-image-card p {
  margin-right: 0;
  margin-left: 0;
}

.project-image-card span {
  margin-top: 0;
}

.parent-insight-panel {
  align-items: start;
}

.parent-visual {
  width: 78px;
  height: 78px;
  min-height: 0;
  border-radius: 20px;
  box-shadow: 0 14px 32px rgba(31, 99, 214, 0.12);
}

.parent-visual img {
  height: 100%;
  min-height: 0;
  object-fit: cover;
  object-position: 34% center;
}

@media (max-width: 759px) {
  .mobile-ai-showcase {
    grid-template-columns: 54px minmax(0, 1fr);
    min-height: auto;
    gap: 8px 10px;
    padding: 10px;
  }

  .mobile-ai-showcase::before {
    content: none;
  }

  .hero-photo-frame {
    position: relative;
    inset: auto;
    z-index: 2;
    grid-column: 1;
    grid-row: 1;
    width: 54px;
    height: 54px;
    border: 1px solid rgba(216, 230, 246, 0.95);
    border-radius: 15px;
    box-shadow: 0 12px 26px rgba(31, 99, 214, 0.14);
  }

  .hero-photo-frame img {
    opacity: 1;
    object-position: center;
  }

  .showcase-head {
    grid-column: 2;
    margin-top: 0;
  }

  .showcase-chat,
  .showcase-steps,
  .showcase-input-row {
    grid-column: 1 / -1;
  }

  .project-image-card {
    grid-template-columns: 58px minmax(0, 1fr);
    padding: 11px;
  }

  .project-image-card img {
    width: 58px;
    height: 58px;
  }

  .parent-insight-panel {
    grid-template-columns: 62px minmax(0, 1fr);
    gap: 10px;
  }

  .parent-visual {
    width: 58px;
    height: 58px;
  }

  .parent-insight-section .mobile-line-list {
    grid-column: 2;
  }
}

@media (min-width: 760px) {
  .mobile-ai-showcase {
    min-height: 480px;
  }

  .hero-photo-frame {
    position: absolute;
    inset: 26px 26px auto auto;
    z-index: 2;
    width: 96px;
    height: 96px;
    border: 1px solid rgba(216, 230, 246, 0.95);
    border-radius: 22px;
    box-shadow: 0 18px 42px rgba(31, 99, 214, 0.16);
  }

  .hero-photo-frame img {
    opacity: 1;
    object-position: center;
  }

  .mobile-ai-showcase::before {
    content: none;
  }

  .idea-bubble {
    margin-top: 94px;
    margin-left: 0;
  }

  .ai-bubble {
    margin-right: 0;
  }

  .project-image-card {
    grid-template-columns: 70px minmax(0, 1fr);
    min-height: 154px;
    padding: 18px;
  }

  .project-image-card img {
    width: 70px;
    height: 70px;
  }

  .parent-insight-panel {
    grid-template-columns: 96px minmax(0, 1fr);
  }

  .parent-visual {
    width: 96px;
    height: 96px;
  }
}

/* v18: close blank image space and tune text density around thumbnail images */
.mobile-ai-showcase {
  gap: 10px;
}

.showcase-chat {
  gap: 8px;
}

.project-image-card h3,
.parent-insight-section .mobile-line-list h3 {
  font-size: 16px;
  line-height: 1.28;
}

.project-image-card p,
.parent-insight-section .mobile-line-list p {
  font-size: 12.5px;
  line-height: 1.48;
}

.parent-insight-section .mobile-line-list article {
  padding: 10px 12px;
}

@media (max-width: 759px) {
  body.mobile-entry .mobile-entry-hero {
    padding-top: 16px;
  }

  .mobile-ai-showcase {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 6px 8px;
    padding: 8px;
  }

  .hero-photo-frame {
    width: 46px;
    height: 46px;
    border-radius: 13px;
  }

  .showcase-head strong {
    font-size: 14px;
  }

  .idea-bubble,
  .ai-bubble,
  .task-bubble {
    padding: 7px 9px;
    font-size: 11px;
    line-height: 1.3;
  }

  .showcase-steps {
    gap: 5px;
  }

  .showcase-steps span {
    min-height: 28px;
    font-size: 10px;
  }

  .showcase-input-row {
    padding: 5px 6px 5px 9px;
  }

  .project-image-card {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 4px 9px;
    padding: 9px;
  }

  .project-image-card img {
    width: 48px;
    height: 48px;
    border-radius: 13px;
  }

  .project-image-card span {
    min-height: 22px;
    padding: 0 9px;
    font-size: 10px;
  }

  .project-image-card h3 {
    font-size: 14px;
    line-height: 1.22;
  }

  .project-image-card p {
    font-size: 11.5px;
    line-height: 1.42;
  }

  .parent-insight-panel {
    grid-template-columns: 50px minmax(0, 1fr);
    gap: 8px;
  }

  .parent-visual {
    width: 48px;
    height: 48px;
    border-radius: 14px;
  }

  .parent-insight-section .mobile-line-list article {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 5px 8px;
    padding: 8px;
  }

  .parent-insight-section .card-icon {
    width: 28px;
    height: 28px;
    font-size: 10px;
  }

  .parent-insight-section .mobile-line-list h3 {
    font-size: 13.5px;
    line-height: 1.22;
  }

  .parent-insight-section .mobile-line-list p {
    font-size: 11px;
    line-height: 1.4;
  }
}

@media (min-width: 760px) {
  body.mobile-entry .mobile-entry-hero {
    min-height: 600px;
    padding-top: 42px;
    padding-bottom: 26px;
  }

  .mobile-ai-showcase {
    align-self: start;
    grid-row: 1 / span 4;
    min-height: 385px;
    padding: 24px;
  }

  .hero-photo-frame {
    inset: 22px 22px auto auto;
    width: 82px;
    height: 82px;
    border-radius: 20px;
  }

  .idea-bubble {
    margin-top: 34px;
  }

  .showcase-input-row {
    margin-top: 4px;
  }

  .project-image-card {
    grid-template-columns: 58px minmax(0, 1fr);
    min-height: 128px;
    gap: 5px 12px;
    padding: 14px;
  }

  .project-image-card img {
    width: 58px;
    height: 58px;
    border-radius: 16px;
  }

  .parent-insight-panel {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 12px;
  }

  .parent-visual {
    width: 76px;
    height: 76px;
    border-radius: 18px;
  }
}

/* v19: shift homepage from consultation page toward future portfolio showcase */
.portfolio-showcase-section {
  background:
    radial-gradient(circle at 12% 0%, rgba(31, 99, 214, 0.1), transparent 32%),
    linear-gradient(145deg, #ffffff 0%, #f4f9ff 56%, #f3fff9 100%);
}

.portfolio-preview-grid {
  display: grid;
  gap: 10px;
}

.portfolio-preview-grid article {
  position: relative;
  overflow: hidden;
  min-height: 132px;
  padding: 14px;
  border: 1px solid rgba(31, 99, 214, 0.13);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 26px rgba(31, 99, 214, 0.06);
}

.portfolio-preview-grid article::after {
  position: absolute;
  right: -18px;
  bottom: -24px;
  width: 82px;
  height: 82px;
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(31, 99, 214, 0.12), rgba(8, 164, 109, 0.12));
  content: "";
}

.portfolio-badge {
  position: relative;
  z-index: 1;
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  background: #eaf4ff;
  color: #1767e8;
  font-size: 11px;
  font-weight: 900;
}

.portfolio-preview-grid h3,
.portfolio-preview-grid p,
.portfolio-meta {
  position: relative;
  z-index: 1;
}

.portfolio-preview-grid h3 {
  margin: 10px 0 6px;
  color: #0f172a;
  font-size: 17px;
  line-height: 1.25;
}

.portfolio-preview-grid p {
  margin: 0;
  color: #526071;
  font-size: 12.5px;
  font-weight: 620;
  line-height: 1.5;
}

.portfolio-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.portfolio-meta span {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  padding: 0 9px;
  border: 1px solid rgba(31, 99, 214, 0.1);
  border-radius: 999px;
  color: #0f766e;
  font-size: 11px;
  font-weight: 850;
  background: rgba(255, 255, 255, 0.78);
}

.portfolio-note {
  margin-top: 10px;
  padding: 10px 12px;
  border: 1px solid rgba(8, 164, 109, 0.16);
  border-radius: 8px;
  background: rgba(238, 252, 247, 0.92);
  color: #365066;
  font-size: 12px;
  font-weight: 650;
  line-height: 1.55;
}

@media (min-width: 760px) {
  .portfolio-preview-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .portfolio-preview-grid article {
    min-height: 176px;
    padding: 18px;
  }
}

/* v20: second-level student works hub */
.works-page {
  background:
    linear-gradient(90deg, rgba(31, 99, 214, 0.12) 0, transparent 20%, transparent 80%, rgba(31, 99, 214, 0.12) 100%),
    #f6fbff;
}

.works-hero {
  gap: 12px;
}

.works-hero-panel {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid rgba(31, 99, 214, 0.14);
  border-radius: 12px;
  background:
    radial-gradient(circle at 100% 0%, rgba(31, 99, 214, 0.12), transparent 34%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(238, 248, 255, 0.92));
  box-shadow: 0 16px 42px rgba(31, 99, 214, 0.1);
}

.works-panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #0f172a;
  font-size: 17px;
  font-weight: 950;
}

.works-mini-card {
  padding: 11px;
  border: 1px solid rgba(31, 99, 214, 0.1);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.86);
}

.works-mini-card.active {
  background: linear-gradient(135deg, #1767e8, #08a46d);
  color: #ffffff;
}

.works-mini-card span,
.works-mini-card em {
  display: block;
  font-size: 11px;
  font-style: normal;
  font-weight: 800;
  opacity: 0.78;
}

.works-mini-card strong {
  display: block;
  margin: 5px 0;
  font-size: 15px;
  line-height: 1.25;
}

.works-panel-tools {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.works-panel-tools span {
  min-height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(31, 99, 214, 0.12);
  border-radius: 8px;
  background: #ffffff;
  color: #154bb0;
  font-size: 12px;
  font-weight: 900;
}

.works-library-section {
  background:
    radial-gradient(circle at 10% 0%, rgba(8, 164, 109, 0.09), transparent 30%),
    #ffffff;
}

.works-search-panel {
  display: grid;
  gap: 10px;
  margin-bottom: 12px;
  padding: 12px;
  border: 1px solid rgba(31, 99, 214, 0.12);
  border-radius: 10px;
  background: #f8fbff;
}

.works-search-label {
  display: grid;
  gap: 8px;
  color: #0f172a;
  font-size: 13px;
  font-weight: 900;
}

.works-search-label input {
  width: 100%;
  min-height: 46px;
  padding: 0 13px;
  border: 1px solid rgba(31, 99, 214, 0.16);
  border-radius: 9px;
  background: #ffffff;
  color: #0f172a;
  font-size: 14px;
  font-weight: 720;
  outline: none;
}

.works-search-label input:focus {
  border-color: #1767e8;
  box-shadow: 0 0 0 3px rgba(23, 103, 232, 0.1);
}

.works-clear-button {
  min-height: 42px;
  border: 1px solid rgba(31, 99, 214, 0.14);
  border-radius: 9px;
  background: #ffffff;
  color: #154bb0;
  font: inherit;
  font-size: 13px;
  font-weight: 900;
  cursor: pointer;
}

.works-filter-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
}

.works-filter-row::-webkit-scrollbar {
  display: none;
}

.works-filter {
  flex: 0 0 auto;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(31, 99, 214, 0.14);
  border-radius: 999px;
  background: #ffffff;
  color: #365066;
  font: inherit;
  font-size: 12px;
  font-weight: 850;
  cursor: pointer;
}

.works-filter.is-active {
  border-color: #1767e8;
  background: #1767e8;
  color: #ffffff;
  box-shadow: 0 10px 20px rgba(23, 103, 232, 0.16);
}

.works-result-count {
  margin: 0;
  color: #64748b;
  font-size: 12px;
  font-weight: 760;
}

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

.work-card {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 12px;
  padding: 12px;
  border: 1px solid rgba(31, 99, 214, 0.12);
  border-radius: 12px;
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(31, 99, 214, 0.07);
}

.work-card[hidden] {
  display: none;
}

.work-thumb {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 15px;
  color: #ffffff;
  font-size: 13px;
  font-weight: 950;
}

.work-thumb.study {
  background: linear-gradient(145deg, #1767e8, #38bdf8);
}

.work-thumb.game {
  background: linear-gradient(145deg, #7c3aed, #1767e8);
}

.work-thumb.school {
  background: linear-gradient(145deg, #08a46d, #22c55e);
}

.work-thumb.app {
  background: linear-gradient(145deg, #f59e0b, #08a46d);
}

.work-content {
  min-width: 0;
}

.work-content h3 {
  margin: 8px 0 6px;
  color: #0f172a;
  font-size: 16px;
  line-height: 1.25;
}

.work-content p {
  margin: 0;
  color: #526071;
  font-size: 12.5px;
  font-weight: 650;
  line-height: 1.5;
}

.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.work-tags span {
  display: inline-flex;
  min-height: 23px;
  align-items: center;
  padding: 0 8px;
  border-radius: 999px;
  background: #eefcf7;
  color: #0f766e;
  font-size: 11px;
  font-weight: 850;
}

.work-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
  margin-top: 12px;
}

.work-actions a,
.work-actions button {
  min-height: 36px;
  display: grid;
  place-items: center;
  padding: 0 6px;
  border: 1px solid rgba(31, 99, 214, 0.14);
  border-radius: 8px;
  background: #ffffff;
  color: #154bb0;
  font: inherit;
  font-size: 11.5px;
  font-weight: 900;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.work-actions button:first-child {
  border-color: #1767e8;
  background: #1767e8;
  color: #ffffff;
}

.works-empty {
  margin-top: 12px;
  padding: 16px;
  border: 1px dashed rgba(31, 99, 214, 0.25);
  border-radius: 10px;
  color: #526071;
  text-align: center;
  font-size: 13px;
  font-weight: 800;
}

.work-demo-section,
.works-flow-section {
  background: linear-gradient(145deg, #ffffff, #f2f8ff);
}

.work-demo-panel {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid rgba(31, 99, 214, 0.12);
  border-radius: 12px;
  background: #ffffff;
}

.work-demo-panel > span {
  color: #1767e8;
  font-size: 12px;
  font-weight: 900;
}

.work-demo-panel h3 {
  margin: 0;
  color: #0f172a;
  font-size: 19px;
  line-height: 1.24;
}

.work-demo-panel p {
  margin: 0;
  color: #526071;
  font-size: 13px;
  font-weight: 680;
  line-height: 1.55;
}

.demo-device {
  min-height: 126px;
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 16px;
  border-radius: 13px;
  background:
    radial-gradient(circle at 85% 20%, rgba(8, 164, 109, 0.18), transparent 28%),
    linear-gradient(135deg, #eaf4ff, #f4fff9);
}

.demo-device div {
  width: 52px;
  height: 8px;
  border-radius: 999px;
  background: #1767e8;
}

.demo-device strong {
  color: #0f172a;
  font-size: 15px;
}

.demo-device em {
  color: #64748b;
  font-size: 12px;
  font-style: normal;
  font-weight: 700;
}

.works-roadmap-section {
  background: #ffffff;
}

.works-space-grid {
  display: grid;
  gap: 10px;
}

.works-space-card {
  display: grid;
  gap: 8px;
  padding: 14px;
  border: 1px solid rgba(31, 99, 214, 0.13);
  border-radius: 12px;
  background:
    radial-gradient(circle at 100% 0%, rgba(31, 99, 214, 0.1), transparent 30%),
    #ffffff;
  color: inherit;
  text-decoration: none;
  box-shadow: 0 12px 30px rgba(31, 99, 214, 0.07);
}

.works-space-card span {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: linear-gradient(145deg, #1767e8, #08a46d);
  color: #ffffff;
  font-size: 12px;
  font-weight: 950;
}

.works-space-card strong {
  color: #0f172a;
  font-size: 17px;
  line-height: 1.25;
}

.works-space-card p {
  margin: 0;
  color: #526071;
  font-size: 12.5px;
  font-weight: 680;
  line-height: 1.5;
}

.works-accordion-section {
  display: grid;
  gap: 12px;
  background:
    radial-gradient(circle at 92% 0%, rgba(8, 164, 109, 0.1), transparent 30%),
    linear-gradient(145deg, #ffffff, #f4f9ff);
}

.works-accordion-card {
  scroll-margin-top: 78px;
  overflow: hidden;
  border: 1px solid rgba(31, 99, 214, 0.13);
  border-radius: 14px;
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(31, 99, 214, 0.07);
}

.works-accordion-card summary {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 11px;
  align-items: center;
  min-height: 74px;
  padding: 14px 42px 14px 14px;
  list-style: none;
  cursor: pointer;
}

.works-accordion-card summary::-webkit-details-marker {
  display: none;
}

.works-accordion-card summary::after {
  content: "+";
  position: absolute;
  right: 15px;
  top: 50%;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: #eef6ff;
  color: #1767e8;
  font-size: 18px;
  font-weight: 950;
  transform: translateY(-50%);
}

.works-accordion-card[open] summary::after {
  content: "-";
  background: #1767e8;
  color: #ffffff;
}

.works-accordion-card summary span {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(145deg, #1767e8, #08a46d);
  color: #ffffff;
  font-size: 12px;
  font-weight: 950;
}

.works-accordion-card summary strong {
  color: #0f172a;
  font-size: 16.5px;
  line-height: 1.25;
}

.works-accordion-card summary em {
  grid-column: 2;
  margin-top: -7px;
  color: #64748b;
  font-size: 12px;
  font-style: normal;
  font-weight: 800;
}

.works-accordion-content {
  display: grid;
  gap: 12px;
  padding: 0 14px 14px;
}

.template-control-grid {
  display: grid;
  gap: 10px;
}

.template-control-grid article {
  padding: 13px;
  border: 1px solid rgba(31, 99, 214, 0.1);
  border-radius: 12px;
  background: #f8fbff;
}

.template-control-grid h3 {
  margin: 0 0 9px;
  color: #0f172a;
  font-size: 15px;
  line-height: 1.28;
}

.template-control-grid ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.template-control-grid li {
  position: relative;
  padding-left: 15px;
  color: #526071;
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.45;
}

.template-control-grid li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #1767e8;
}

.section-title-row.compact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  margin-bottom: 0;
}

.section-title-row.compact .mobile-section-intro {
  margin: 0;
}

.student-space-section,
.parent-access-section,
.school-collection-section {
  background: linear-gradient(145deg, #ffffff, #f4f9ff);
}

.student-profile-layout {
  display: grid;
  gap: 12px;
}

.student-profile-card {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 12px;
  padding: 14px;
  border: 1px solid rgba(31, 99, 214, 0.13);
  border-radius: 12px;
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(31, 99, 214, 0.07);
}

.student-avatar {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: linear-gradient(145deg, #1767e8, #08a46d);
  color: #ffffff;
  font-size: 22px;
  font-weight: 950;
}

.student-profile-card h3 {
  margin: 9px 0 6px;
  color: #0f172a;
  font-size: 18px;
  line-height: 1.25;
}

.student-profile-card p {
  margin: 0;
  color: #526071;
  font-size: 12.5px;
  font-weight: 680;
  line-height: 1.52;
}

.student-work-stack {
  display: grid;
  gap: 8px;
}

.student-work-stack article {
  padding: 12px;
  border: 1px solid rgba(31, 99, 214, 0.1);
  border-radius: 10px;
  background: #ffffff;
}

.student-work-stack strong,
.student-work-stack span {
  display: block;
}

.student-work-stack strong {
  color: #0f172a;
  font-size: 15px;
}

.student-work-stack span {
  margin-top: 5px;
  color: #0f766e;
  font-size: 12px;
  font-weight: 800;
}

.work-process-timeline {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.work-process-timeline article {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 11px;
  border-radius: 10px;
  background: rgba(234, 244, 255, 0.78);
}

.work-process-timeline span {
  color: #1767e8;
  font-size: 12px;
  font-weight: 950;
}

.work-process-timeline p {
  margin: 0;
  color: #526071;
  font-size: 12px;
  font-weight: 680;
  line-height: 1.5;
}

.inline-action-button {
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(31, 99, 214, 0.14);
  border-radius: 999px;
  background: #ffffff;
  color: #1767e8;
  font: inherit;
  font-size: 12px;
  font-weight: 900;
  cursor: pointer;
}

.parent-access-panel {
  display: grid;
  gap: 12px;
}

.parent-link-card {
  padding: 16px;
  border-radius: 14px;
  background:
    radial-gradient(circle at 100% 0%, rgba(8, 164, 109, 0.18), transparent 32%),
    linear-gradient(145deg, #1767e8, #08a46d);
  color: #ffffff;
  box-shadow: 0 18px 42px rgba(23, 103, 232, 0.18);
}

.parent-link-card span,
.parent-link-card p {
  opacity: 0.86;
}

.parent-link-card span {
  font-size: 12px;
  font-weight: 850;
}

.parent-link-card strong {
  display: block;
  margin: 8px 0;
  font-size: 19px;
  line-height: 1.25;
  word-break: break-all;
}

.parent-link-card p {
  margin: 0;
  font-size: 12.5px;
  font-weight: 680;
  line-height: 1.5;
}

.access-rule-list {
  display: grid;
  gap: 8px;
}

.access-rule-list article {
  padding: 12px;
  border: 1px solid rgba(31, 99, 214, 0.1);
  border-radius: 10px;
  background: #ffffff;
}

.access-rule-list strong {
  display: block;
  color: #0f172a;
  font-size: 15px;
}

.access-rule-list p {
  margin: 5px 0 0;
  color: #526071;
  font-size: 12px;
  font-weight: 680;
  line-height: 1.5;
}

.share-output {
  margin-top: 12px;
  padding: 12px;
  border: 1px dashed rgba(31, 99, 214, 0.25);
  border-radius: 10px;
  background: #f8fbff;
  color: #365066;
  font-size: 12.5px;
  font-weight: 720;
  line-height: 1.6;
  word-break: break-word;
}

.school-collection-board {
  overflow: hidden;
  border: 1px solid rgba(31, 99, 214, 0.13);
  border-radius: 14px;
  background: #ffffff;
  box-shadow: 0 14px 34px rgba(31, 99, 214, 0.08);
}

.collection-head {
  padding: 16px;
  background:
    radial-gradient(circle at 90% 0%, rgba(8, 164, 109, 0.16), transparent 30%),
    #eaf4ff;
}

.collection-head span {
  color: #1767e8;
  font-size: 12px;
  font-weight: 950;
}

.collection-head h3 {
  margin: 8px 0 6px;
  color: #0f172a;
  font-size: 19px;
  line-height: 1.25;
}

.collection-head p {
  margin: 0;
  color: #526071;
  font-size: 12.5px;
  font-weight: 680;
  line-height: 1.5;
}

.collection-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(31, 99, 214, 0.1);
  border-bottom: 1px solid rgba(31, 99, 214, 0.1);
}

.collection-stats div {
  padding: 12px 6px;
  text-align: center;
}

.collection-stats div + div {
  border-left: 1px solid rgba(31, 99, 214, 0.1);
}

.collection-stats strong,
.collection-stats span {
  display: block;
}

.collection-stats strong {
  color: #1767e8;
  font-size: 21px;
  line-height: 1;
}

.collection-stats span {
  margin-top: 5px;
  color: #526071;
  font-size: 11px;
  font-weight: 760;
}

.collection-list {
  display: grid;
  gap: 8px;
  padding: 12px;
}

.collection-list article {
  display: grid;
  gap: 5px;
  padding: 11px;
  border-radius: 10px;
  background: #f8fbff;
}

.collection-list span {
  color: #0f766e;
  font-size: 11px;
  font-weight: 900;
}

.collection-list strong {
  color: #0f172a;
  font-size: 14px;
  line-height: 1.32;
}

@media (max-width: 420px) {
  .work-card {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 9px;
    padding: 10px;
  }

  .work-thumb {
    width: 48px;
    height: 48px;
    border-radius: 13px;
    font-size: 11px;
  }

  .work-actions {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 760px) {
  .works-hero {
    grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.72fr);
  }

  .works-hero-panel {
    grid-column: 2;
    grid-row: 1 / span 4;
    align-self: center;
    min-height: 360px;
    padding: 22px;
  }

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

  .work-card {
    min-height: 222px;
    align-content: start;
  }

  .works-search-panel {
    grid-template-columns: minmax(260px, 0.8fr) auto minmax(0, 1fr);
    align-items: end;
  }

  .works-result-count {
    grid-column: 1 / -1;
  }

  .work-demo-panel {
    grid-template-columns: minmax(0, 0.8fr) minmax(260px, 0.7fr);
    align-items: center;
  }

  .work-demo-panel > span,
  .work-demo-panel h3,
  .work-demo-panel p {
    grid-column: 1;
  }

  .demo-device {
    grid-column: 2;
    grid-row: 1 / span 3;
  }

  .works-space-grid,
  .template-control-grid,
  .student-profile-layout,
  .parent-access-panel {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .student-profile-card,
  .parent-link-card {
    grid-column: span 1;
  }

  .student-work-stack,
  .access-rule-list {
    grid-column: span 2;
  }

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

  .work-process-timeline article {
    grid-template-columns: 1fr;
  }
}

/* v26: compact density pass across the mobile-first site. */
@media (max-width: 759px) {
  .idea-site .mobile-hero-header {
    min-height: 66px;
    padding: 10px 14px;
  }

  .idea-site .brand {
    gap: 10px;
  }

  .idea-site .brand-mark {
    width: 40px;
    height: 40px;
  }

  .mobile-menu-button {
    width: 40px;
    height: 40px;
    flex-basis: 40px;
  }

  body.mobile-entry .mobile-entry-hero {
    margin: 0 7px 10px;
    padding: 14px 12px 12px;
  }

  .idea-site .mobile-entry-hero h1 {
    margin-bottom: 7px;
    font-size: clamp(29px, 8.2vw, 33px);
  }

  .mobile-entry-hero p {
    font-size: 13.5px;
    line-height: 1.5;
  }

  .mobile-action-stack {
    gap: 8px;
    margin: 10px 0;
  }

  .mobile-action-stack .button {
    min-height: 44px;
    font-size: 13px;
  }

  .mobile-ai-showcase {
    gap: 5px 7px;
    margin: 8px 0;
    padding: 7px;
  }

  .idea-bubble,
  .ai-bubble,
  .task-bubble {
    padding: 6px 8px;
    font-size: 10.5px;
    line-height: 1.28;
  }

  .showcase-steps {
    gap: 4px;
  }

  .showcase-steps span {
    min-height: 26px;
    padding: 3px;
    font-size: 9.5px;
  }

  .showcase-input-row {
    grid-template-columns: minmax(0, 1fr) 32px;
    padding: 4px 5px 4px 8px;
  }

  .showcase-input-row strong {
    width: 32px;
    height: 32px;
  }

  .mobile-proof-strip {
    gap: 6px;
  }

  .mobile-proof-strip div {
    min-height: 54px;
    padding: 7px 5px;
  }

  .mobile-proof-strip strong {
    font-size: 13px;
  }

  .mobile-entry-section {
    margin: 7px;
    padding: 12px;
  }

  .mobile-entry-section h2 {
    margin-bottom: 7px;
    font-size: 22px;
    line-height: 1.16;
  }

  .mobile-section-intro {
    margin-bottom: 10px;
    font-size: 12.5px;
    line-height: 1.45;
  }

  .service-entry-grid,
  body.mobile-entry .example-grid,
  .mobile-line-list,
  .portfolio-preview-grid,
  .secondary-link-grid,
  .works-grid,
  .works-space-grid {
    gap: 8px;
  }

  .service-entry-grid article {
    grid-template-columns: 46px minmax(0, 1fr);
    column-gap: 9px;
    padding: 10px;
  }

  .service-entry-grid span {
    min-height: 32px;
  }

  .service-entry-grid h3 {
    margin-bottom: 3px;
    font-size: 16px;
  }

  .service-entry-grid p {
    font-size: 12px;
    line-height: 1.38;
  }

  .service-points {
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px 8px;
    margin-top: 7px;
  }

  .service-points li {
    padding-left: 10px;
    font-size: 10.5px;
    line-height: 1.35;
  }

  .service-points li::before {
    top: 5px;
    width: 4px;
    height: 4px;
  }

  .portfolio-preview-grid article {
    min-height: 0;
    padding: 11px;
  }

  .portfolio-preview-grid h3 {
    margin: 6px 0 4px;
    font-size: 16px;
  }

  .portfolio-preview-grid p {
    line-height: 1.4;
  }

  .portfolio-meta {
    gap: 4px;
    margin-top: 7px;
  }

  .portfolio-meta span {
    min-height: 22px;
    padding: 0 7px;
  }

  .portfolio-note {
    margin-top: 8px;
    padding: 8px 10px;
    line-height: 1.45;
  }

  .project-image-card {
    grid-template-columns: 44px minmax(0, 1fr);
    min-height: 0;
    gap: 3px 8px;
    padding: 9px;
  }

  .project-image-card img {
    width: 44px;
    height: 44px;
  }

  .parent-insight-panel {
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 7px;
  }

  .parent-visual {
    width: 44px;
    height: 44px;
  }

  .parent-insight-section .mobile-line-list {
    gap: 7px;
  }

  .parent-insight-section .mobile-line-list article {
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 4px 7px;
    padding: 7px;
  }

  body.mobile-entry .compact-path-section {
    padding: 12px;
  }

  body.mobile-entry .idea-path-row {
    gap: 7px;
    padding: 8px;
  }

  body.mobile-entry .idea-path-row article {
    min-height: 88px;
    gap: 4px;
    padding: 8px 6px;
  }

  body.mobile-entry .idea-path-row span {
    width: 30px;
    height: 30px;
  }

  body.mobile-entry .idea-path-row p {
    font-size: 10px;
    line-height: 1.3;
  }

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

  .secondary-link-grid a {
    min-height: 82px;
    align-content: start;
    padding: 10px;
  }

  .secondary-link-grid strong {
    font-size: 14px;
    line-height: 1.3;
  }

  .secondary-link-grid span {
    font-size: 11.5px;
    line-height: 1.35;
  }

  .mobile-lead-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px 8px;
  }

  .mobile-lead-form .full-field {
    grid-column: 1 / -1;
  }

  .mobile-lead-form label {
    gap: 5px;
    font-size: 12px;
  }

  .lead-form input,
  .lead-form select {
    min-height: 44px;
  }

  .lead-form textarea {
    min-height: 104px;
    padding: 9px 11px;
  }

  .works-search-panel {
    gap: 8px;
    margin-bottom: 9px;
    padding: 10px;
  }

  .works-search-label {
    gap: 5px;
  }

  .works-search-label input {
    min-height: 44px;
  }

  .work-card {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 8px;
    padding: 9px;
  }

  .work-thumb {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    font-size: 10px;
  }

  .work-content h3 {
    margin: 6px 0 4px;
    font-size: 15px;
  }

  .work-content p {
    font-size: 12px;
    line-height: 1.4;
  }

  .work-tags {
    gap: 4px;
    margin-top: 7px;
  }

  .work-actions {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 5px;
    margin-top: 8px;
  }

  .work-actions a,
  .work-actions button {
    min-height: 34px;
    padding: 0 3px;
    font-size: 10.5px;
  }

  .work-demo-panel {
    gap: 8px;
    padding: 10px;
  }

  .demo-device {
    min-height: 92px;
    gap: 6px;
    padding: 12px;
  }

  .works-space-card {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 4px 9px;
    padding: 10px;
  }

  .works-space-card span {
    grid-row: 1 / span 2;
  }

  .works-space-card strong {
    font-size: 15px;
  }

  .works-space-card p {
    font-size: 11.5px;
    line-height: 1.38;
  }

  .works-accordion-section {
    gap: 8px;
  }

  .works-accordion-card summary {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 8px;
    min-height: 64px;
    padding: 10px 38px 10px 10px;
  }

  .works-accordion-card summary span {
    width: 32px;
    height: 32px;
  }

  .works-accordion-card summary strong {
    font-size: 15px;
  }

  .works-accordion-card summary em {
    margin-top: -4px;
    font-size: 11px;
  }

  .works-accordion-content {
    gap: 9px;
    padding: 0 10px 10px;
  }

  .detail-card-list {
    gap: 8px;
  }

  .detail-card-list article,
  .mobile-line-list article {
    padding: 10px;
  }

  .detail-card-list h3,
  .mobile-line-list h3 {
    margin-bottom: 4px;
    font-size: 15.5px;
  }

  .detail-card-list p,
  .mobile-line-list p {
    font-size: 12.5px;
    line-height: 1.42;
  }

  body.mobile-entry .flow-steps-card {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 7px;
    padding: 8px;
  }

  body.mobile-entry .flow-steps-card div {
    grid-template-columns: 30px minmax(0, 1fr);
    min-height: 50px;
    padding: 8px;
  }

  body.mobile-entry .flow-steps-card span {
    width: 28px;
    height: 28px;
  }

  body.mobile-entry .flow-steps-card strong {
    font-size: 12.5px;
    line-height: 1.25;
  }
}

@media (min-width: 760px) {
  .portfolio-preview-grid article {
    min-height: 154px;
    padding: 15px;
  }

  .mobile-entry-section {
    margin-top: 10px;
    margin-bottom: 10px;
  }
}

/* v27: compact contact entry with an on-demand form. */
.compact-contact-section {
  background:
    radial-gradient(circle at 92% 0%, rgba(8, 164, 109, 0.09), transparent 34%),
    linear-gradient(145deg, #ffffff, #f5f9ff);
}

.contact-compact-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 5px 12px;
  align-items: start;
}

.contact-compact-head h2 {
  margin-bottom: 0;
}

.contact-compact-head .mobile-section-intro {
  grid-column: 1 / -1;
  margin-bottom: 4px;
}

.lead-form-toggle {
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid rgba(23, 103, 232, 0.16);
  border-radius: 8px;
  background: #ffffff;
  color: #1767e8;
  font: inherit;
  font-size: 12px;
  font-weight: 900;
  cursor: pointer;
}

.lead-form-toggle[aria-expanded="true"] {
  background: #eef6ff;
}

.contact-route-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin-top: 7px;
}

.contact-route-grid button {
  min-height: 64px;
  display: grid;
  align-content: center;
  gap: 3px;
  padding: 8px 6px;
  border: 1px solid rgba(31, 99, 214, 0.13);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  color: #0f172a;
  font: inherit;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(31, 99, 214, 0.05);
}

.contact-route-grid button.is-active {
  border-color: #1767e8;
  background: #eef6ff;
  box-shadow: 0 0 0 2px rgba(23, 103, 232, 0.08);
}

.contact-route-grid strong,
.contact-route-grid span {
  display: block;
}

.contact-route-grid strong {
  font-size: 14px;
  line-height: 1.25;
}

.contact-route-grid span {
  color: #64748b;
  font-size: 10.5px;
  font-weight: 720;
  line-height: 1.3;
}

.collapsible-lead-form {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(31, 99, 214, 0.1);
}

.collapsible-lead-form[hidden] {
  display: none !important;
}

.collapsible-lead-form .form-result:empty {
  display: none;
}

.lead-form-toggle:focus-visible,
.contact-route-grid button:focus-visible {
  outline: 3px solid rgba(23, 103, 232, 0.18);
  outline-offset: 2px;
}

@media (max-width: 759px) {
  .compact-contact-section {
    padding: 11px 12px 12px;
  }

  .contact-route-grid {
    gap: 6px;
  }

  .contact-route-grid button {
    min-height: 58px;
    padding: 7px 4px;
  }
}

/* v28: clear page hierarchy for student, parent, and school workspaces. */
.service-entry-grid article {
  position: relative;
}

.service-card-hit {
  position: absolute;
  inset: 0;
  z-index: 2;
  border-radius: 8px;
}

.service-card-hit:focus-visible {
  outline: 3px solid rgba(23, 103, 232, 0.24);
  outline-offset: 2px;
}

.service-entry-grid article::after {
  position: absolute;
  top: 10px;
  right: 10px;
  color: rgba(23, 103, 232, 0.7);
  font-size: 18px;
  font-weight: 900;
  content: "›";
}

.workspace-detail-hero {
  min-height: auto;
}

.workspace-detail-page .workspace-detail-hero h1 {
  max-width: 12ch;
}

.workspace-detail-page .template-control-grid,
.workspace-detail-page .student-profile-layout,
.workspace-detail-page .parent-access-panel {
  margin-top: 4px;
}

.workspace-detail-page .work-process-timeline {
  margin-top: 0;
}

@media (max-width: 759px) {
  .workspace-detail-page .workspace-detail-hero {
    padding-top: 18px;
  }

  .workspace-detail-page .mobile-entry-section {
    margin-top: 7px;
    margin-bottom: 7px;
  }
}

@media (min-width: 760px) {
  body.mobile-entry.workspace-detail-page .workspace-detail-hero {
    display: block;
    min-height: auto;
    padding: 46px 32px 38px;
  }

  .workspace-detail-page .workspace-detail-hero h1 {
    max-width: none;
  }

  .workspace-detail-page .workspace-detail-hero p {
    max-width: 680px;
  }

  .workspace-detail-page .workspace-detail-hero .mobile-action-stack {
    max-width: 440px;
    margin-bottom: 0;
  }
}

/* v31: database-backed works library and work detail page. */
.works-hero-compact {
  min-height: auto;
}

.works-hero-compact .works-hero-panel {
  min-height: auto;
}

.delivery-explain-grid {
  display: grid;
  gap: 7px;
}

.delivery-explain-grid div {
  display: grid;
  grid-template-columns: 108px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 10px;
  border: 1px solid rgba(31, 99, 214, 0.11);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.92);
}

.delivery-explain-grid strong {
  color: #0f4fae;
  font-size: 13px;
}

.delivery-explain-grid span {
  color: #59697a;
  font-size: 12px;
  line-height: 1.4;
}

.works-filter-group {
  display: grid;
  gap: 6px;
}

.works-filter-group > span {
  color: #667085;
  font-size: 11px;
  font-weight: 850;
}

.works-loading {
  padding: 28px 16px;
  border: 1px dashed rgba(31, 99, 214, 0.22);
  border-radius: 8px;
  color: #64748b;
  text-align: center;
  font-size: 13px;
  font-weight: 750;
}

.works-loading.error {
  color: #b42318;
  background: #fff8f7;
}

.work-thumb.online {
  background: linear-gradient(145deg, #1767e8, #00a878);
}

.work-thumb.download {
  background: linear-gradient(145deg, #526071, #8d6b15);
}

.work-thumb.hybrid {
  background: linear-gradient(145deg, #1767e8, #7157d9);
}

.work-tags .delivery-tag.online {
  color: #0756b4;
  background: #eaf3ff;
}

.work-tags .delivery-tag.download {
  color: #775300;
  background: #fff5d8;
}

.work-tags .delivery-tag.hybrid {
  color: #5e3fc0;
  background: #f0ebff;
}

.dynamic-work-card .work-actions a:first-child {
  border-color: #1767e8;
  background: #1767e8;
  color: #ffffff;
}

.compact-workspaces .works-space-card {
  min-height: 0;
}

.work-detail-page {
  min-height: 100vh;
  background: #f4f8fd;
}

.work-detail-shell {
  width: min(920px, 100%);
  margin: 0 auto;
  padding-bottom: 18px;
}

.work-detail-loading.error {
  color: #b42318;
  background: #fff8f7;
}

.work-detail-hero {
  margin: 10px 8px;
  padding: 22px;
  border: 1px solid rgba(31, 99, 214, 0.13);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 16px 42px rgba(31, 99, 214, 0.08);
}

.work-detail-kicker {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.work-delivery-badge {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  padding: 0 10px;
  border-radius: 999px;
  color: #0756b4;
  background: #eaf3ff;
  font-size: 12px;
  font-weight: 850;
}

.work-delivery-badge.download {
  color: #775300;
  background: #fff5d8;
}

.work-delivery-badge.hybrid {
  color: #5e3fc0;
  background: #f0ebff;
}

.work-detail-hero h1 {
  margin: 15px 0 9px;
  color: #0f172a;
  font-size: clamp(29px, 6vw, 42px);
  line-height: 1.12;
  letter-spacing: 0;
}

.work-detail-hero > p {
  margin: 0;
  color: #526071;
  font-size: 15px;
  line-height: 1.75;
}

.work-detail-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 18px;
}

.work-detail-meta div {
  display: grid;
  gap: 3px;
  padding: 10px;
  border: 1px solid #e2eaf3;
  border-radius: 6px;
  background: #f8fafc;
}

.work-detail-meta span {
  color: #667085;
  font-size: 11px;
}

.work-detail-meta strong {
  overflow-wrap: anywhere;
  font-size: 13px;
}

.work-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.work-detail-actions .button {
  min-width: 120px;
}

.work-trust-note {
  margin-top: 14px;
  padding: 13px;
  border-left: 3px solid #00a878;
  background: #f0fbf7;
}

.work-trust-note p {
  margin: 4px 0 0;
  color: #526071;
  font-size: 13px;
  line-height: 1.6;
}

.public-file-list {
  display: grid;
  gap: 8px;
}

.public-file-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px;
  border: 1px solid #dce6f2;
  border-radius: 7px;
  color: #0f172a;
  background: #ffffff;
  text-decoration: none;
}

.public-file-row span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.public-file-row strong,
.public-file-row small {
  display: block;
}

.public-file-row small {
  margin-top: 4px;
  color: #667085;
}

.public-file-row b {
  flex: 0 0 auto;
  color: #1767e8;
  font-size: 13px;
}

.work-share-section .button {
  margin-top: 4px;
}

.share-result {
  margin-left: 10px;
  color: #087a55;
  font-size: 13px;
  font-weight: 750;
}

@media (max-width: 420px) {
  .works-hero-compact {
    padding-top: 16px;
  }

  .delivery-explain-grid div {
    grid-template-columns: 94px minmax(0, 1fr);
    padding: 8px;
  }

  .dynamic-work-card .work-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .work-detail-hero {
    margin: 7px;
    padding: 16px;
  }

  .work-detail-meta {
    grid-template-columns: 1fr;
  }

  .work-detail-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .work-detail-actions .button {
    min-width: 0;
  }
}

@media (min-width: 760px) {
  .works-hero-compact .works-hero-panel {
    min-height: auto;
    padding: 18px;
  }

  .works-search-panel {
    grid-template-columns: minmax(280px, 1fr) auto;
  }

  .works-filter-group,
  .works-result-count {
    grid-column: 1 / -1;
  }

  .work-detail-hero {
    margin: 14px 10px;
    padding: 30px;
  }

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

/* v32: public student portfolio, readable without an account. */
.student-profile-link {
  display: inline-flex;
  margin-top: 8px;
  color: #1767e8;
  font-size: 12px;
  font-weight: 850;
  text-decoration: none;
}

.student-profile-link::after {
  margin-left: 5px;
  content: "›";
}

.public-portfolio-page {
  min-height: 100vh;
  background: #f4f8fd;
}

.portfolio-page-shell {
  width: min(920px, 100%);
  margin: 0 auto;
  padding-bottom: 18px;
}

.portfolio-loading.error {
  color: #b42318;
  background: #fff8f7;
}

.portfolio-profile-hero {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 16px;
  margin: 10px 8px;
  padding: 20px;
  border: 1px solid rgba(31, 99, 214, 0.13);
  border-radius: 8px;
  background:
    radial-gradient(circle at 94% 8%, rgba(0, 168, 120, 0.1), transparent 28%),
    #ffffff;
  box-shadow: 0 16px 42px rgba(31, 99, 214, 0.08);
}

.portfolio-avatar {
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #ffffff;
  background: linear-gradient(145deg, #1767e8, #00a878);
  font-size: 30px;
  font-weight: 950;
}

.portfolio-profile-copy {
  min-width: 0;
}

.portfolio-public-label {
  color: #087a55;
  font-size: 12px;
  font-weight: 850;
}

.portfolio-profile-copy h1 {
  margin: 8px 0;
  color: #0f172a;
  font-size: clamp(25px, 6vw, 38px);
  line-height: 1.15;
  letter-spacing: 0;
}

.portfolio-profile-copy > p {
  margin: 0;
  color: #526071;
  font-size: 14px;
  line-height: 1.7;
}

.portfolio-profile-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 14px;
}

.portfolio-profile-meta span {
  display: inline-flex;
  min-height: 27px;
  align-items: center;
  padding: 0 9px;
  border-radius: 999px;
  color: #475467;
  background: #f1f5f9;
  font-size: 11px;
  font-weight: 750;
}

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

.portfolio-profile-actions .button {
  min-width: 138px;
}

.portfolio-public-works {
  background: #ffffff;
}

.portfolio-safety-note {
  border-left: 3px solid #00a878;
  background: #f3fbf8;
}

.portfolio-safety-note p {
  margin: 0;
  color: #526071;
  font-size: 13px;
  line-height: 1.7;
}

@media (max-width: 420px) {
  .portfolio-profile-hero {
    grid-template-columns: 54px minmax(0, 1fr);
    gap: 12px;
    margin: 7px;
    padding: 15px;
  }

  .portfolio-avatar {
    width: 54px;
    height: 54px;
    font-size: 23px;
  }

  .portfolio-profile-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .portfolio-profile-actions .button {
    min-width: 0;
  }
}

@media (min-width: 760px) {
  .portfolio-profile-hero {
    grid-template-columns: 92px minmax(0, 1fr);
    margin: 14px 10px;
    padding: 30px;
  }

  .portfolio-avatar {
    width: 92px;
    height: 92px;
    font-size: 38px;
  }
}

/* v33: official company, compliance, and compact internal site links. */
.company-credibility-section {
  background: #ffffff;
}

.company-trust-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.company-trust-links a {
  min-width: 0;
  display: grid;
  gap: 5px;
  padding: 12px;
  border: 1px solid rgba(31, 99, 214, 0.13);
  border-radius: 8px;
  color: #0f172a;
  background: #f9fbfd;
  text-decoration: none;
}

.company-trust-links span {
  width: fit-content;
  padding: 3px 7px;
  border-radius: 999px;
  color: #0756b4;
  background: #eaf3ff;
  font-size: 10px;
  font-weight: 850;
}

.company-trust-links strong {
  font-size: 14px;
  line-height: 1.3;
}

.company-trust-links em {
  color: #667085;
  font-size: 11px;
  font-style: normal;
  line-height: 1.4;
}

.official-info-page {
  min-height: 100vh;
  background: #f4f8fd;
}

.official-info-page main {
  width: min(920px, 100%);
  margin: 0 auto;
}

.official-info-hero {
  display: block;
  min-height: auto;
  background:
    radial-gradient(circle at 92% 10%, rgba(0, 168, 120, 0.1), transparent 28%),
    #ffffff;
}

.official-page-label {
  display: inline-flex;
  margin-bottom: 10px;
  padding: 4px 9px;
  border-radius: 999px;
  color: #087a55;
  background: #eafaf3;
  font-size: 11px;
  font-weight: 850;
}

.official-service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.official-service-grid article {
  padding: 13px;
  border: 1px solid #dce6f2;
  border-radius: 8px;
  background: #ffffff;
}

.official-service-grid span {
  color: #1767e8;
  font-size: 11px;
  font-weight: 900;
}

.official-service-grid h3 {
  margin: 7px 0 5px;
  font-size: 15px;
}

.official-service-grid p,
.license-public-copy p,
.policy-reference-section > p {
  margin: 0;
  color: #526071;
  font-size: 12.5px;
  line-height: 1.65;
}

.license-public-section {
  background: #ffffff;
}

.license-public-section .section-title-row > span {
  color: #087a55;
  font-size: 11px;
  font-weight: 850;
}

.license-public-layout {
  display: grid;
  grid-template-columns: minmax(180px, 0.54fr) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.license-image-link {
  overflow: hidden;
  display: block;
  max-height: 430px;
  border: 1px solid #d5dde7;
  border-radius: 6px;
  background: #eef2f6;
}

.license-image-link img {
  width: 100%;
  height: 430px;
  display: block;
  object-fit: cover;
  object-position: top;
}

.license-public-copy {
  min-width: 0;
}

.license-type {
  display: inline-flex;
  padding: 5px 9px;
  border-radius: 999px;
  color: #0756b4;
  background: #eaf3ff;
  font-size: 11px;
  font-weight: 850;
}

.license-public-copy h3 {
  margin: 12px 0;
  font-size: 20px;
}

.license-public-copy dl {
  margin: 0 0 13px;
}

.license-public-copy dl div {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid #edf1f6;
}

.license-public-copy dt {
  color: #667085;
  font-size: 12px;
}

.license-public-copy dd {
  margin: 0;
  color: #101828;
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.5;
}

.company-boundary-section {
  background: #f9fbfd;
}

.minor-policy-hero .mobile-proof-strip {
  margin-top: 15px;
}

.protection-compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.protection-compare-grid article {
  padding: 14px;
  border: 1px solid #dce6f2;
  border-radius: 8px;
  background: #ffffff;
}

.protection-compare-grid article.allowed {
  border-top: 3px solid #00a878;
}

.protection-compare-grid article.blocked {
  border-top: 3px solid #d19021;
}

.protection-compare-grid span {
  color: #0f172a;
  font-size: 15px;
  font-weight: 900;
}

.protection-compare-grid ul {
  margin: 10px 0 0;
  padding-left: 18px;
  color: #526071;
  font-size: 12.5px;
  line-height: 1.8;
}

.guardian-rights-section {
  background: #ffffff;
}

.policy-reference-section {
  border-left: 3px solid #1767e8;
  background: #f6f9ff;
}

.policy-link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 12px;
}

.policy-link-row a {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 10px;
  border: 1px solid rgba(31, 99, 214, 0.15);
  border-radius: 6px;
  color: #1767e8;
  background: #ffffff;
  font-size: 11px;
  font-weight: 850;
  text-decoration: none;
}

@media (max-width: 620px) {
  .company-trust-links {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .company-trust-links a {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 3px 9px;
    align-items: center;
    padding: 10px;
  }

  .company-trust-links span {
    grid-row: 1 / span 2;
  }

  .official-service-grid,
  .protection-compare-grid {
    grid-template-columns: 1fr;
  }

  .license-public-layout {
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 11px;
  }

  .license-image-link,
  .license-image-link img {
    height: 188px;
    max-height: 188px;
  }

  .license-public-copy h3 {
    margin: 8px 0;
    font-size: 16px;
  }

  .license-public-copy dl div {
    display: block;
    padding: 5px 0;
  }

  .license-public-copy dt,
  .license-public-copy dd {
    font-size: 10.5px;
  }

  .license-public-copy p {
    grid-column: 1 / -1;
    font-size: 11px;
    line-height: 1.5;
  }
}
/* idea-v37: corporate software homepage selected from Product Design option 3. */
body.corporate-site {
  --corp-blue: #0b63e5;
  --corp-blue-dark: #084bad;
  --corp-green: #0d9d72;
  --corp-ink: #0b1220;
  --corp-muted: #5a6678;
  --corp-line: #dce5ef;
  --corp-soft: #f4f8fc;
  --corp-max: 1240px;
  margin: 0;
  background: #fff;
  color: var(--corp-ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
  width: 100%;
  max-width: none;
  min-height: 100%;
}

html:has(body.corporate-site) {
  background: #ffffff;
}

.corporate-site *,
.corporate-site *::before,
.corporate-site *::after {
  box-sizing: border-box;
}

.corporate-site a {
  color: inherit;
  text-decoration: none;
}

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

.corp-header {
  position: sticky;
  z-index: 50;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 10px max(24px, calc((100vw - var(--corp-max)) / 2));
  border-bottom: 1px solid rgba(220, 229, 239, 0.92);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(18px);
}

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

.corp-brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(145deg, #0b63e5 8%, #0d9d72 100%);
  color: #fff;
  font-size: 24px;
  font-weight: 900;
}

.corp-brand > span:last-child {
  display: grid;
  min-width: 0;
  gap: 2px;
}

.corp-brand strong {
  overflow: hidden;
  font-size: 18px;
  font-weight: 850;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.corp-brand small {
  color: var(--corp-muted);
  font-size: 11px;
  font-weight: 650;
}

.corp-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.corp-nav a {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  padding: 0 12px;
  border-radius: 6px;
  color: #303b4d;
  font-size: 14px;
  font-weight: 700;
}

.corp-nav a:hover,
.corp-nav a:focus-visible {
  background: var(--corp-soft);
  color: var(--corp-blue);
  outline: none;
}

.corp-nav .corp-nav-cta {
  margin-left: 6px;
  background: var(--corp-blue);
  color: #fff;
}

.corp-nav .corp-nav-cta:hover,
.corp-nav .corp-nav-cta:focus-visible {
  background: var(--corp-blue-dark);
  color: #fff;
}

.corp-menu-button,
.corporate-site .mobile-nav-toggle {
  display: none;
}

.corp-hero {
  display: grid;
  max-width: var(--corp-max);
  min-height: 620px;
  margin: 0 auto;
  padding: 68px 24px 52px;
  grid-template-columns: minmax(0, 0.84fr) minmax(520px, 1.16fr);
  gap: 44px;
  align-items: center;
}

.corp-hero-copy {
  position: relative;
  z-index: 2;
}

.corp-kicker {
  margin: 0 0 14px;
  color: var(--corp-blue);
  font-size: 14px;
  font-weight: 800;
}

.corp-hero h1 {
  margin: 0;
  color: var(--corp-ink);
  font-size: clamp(52px, 5.5vw, 76px);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: 0;
}

.corp-hero h1 span {
  color: var(--corp-blue);
}

.corp-hero-lead {
  max-width: 600px;
  margin: 26px 0 0;
  color: var(--corp-muted);
  font-size: 18px;
  font-weight: 560;
  line-height: 1.75;
}

.corp-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.corp-button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 24px;
  border: 1px solid var(--corp-blue);
  border-radius: 6px;
  font: inherit;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
}

.corp-button.primary {
  background: var(--corp-blue);
  color: #fff;
}

.corp-button.primary:hover,
.corp-button.primary:focus-visible {
  background: var(--corp-blue-dark);
  outline: 3px solid rgba(11, 99, 229, 0.16);
}

.corp-button.secondary {
  background: #fff;
  color: var(--corp-blue);
}

.corp-proof-row {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 22px;
  margin-top: 32px;
  color: var(--corp-muted);
  font-size: 12px;
}

.corp-proof-row span {
  display: grid;
  gap: 2px;
}

.corp-proof-row strong {
  color: #172337;
  font-size: 13px;
}

.corp-hero-visual {
  margin: 0;
}

.corp-hero-visual picture,
.corp-case-row figure picture,
.corp-youth-band > picture {
  display: block;
  width: 100%;
  height: 100%;
}

.corp-hero-visual img {
  width: 100%;
  border-radius: 8px;
  object-fit: contain;
}

.corp-service-rail {
  display: grid;
  max-width: var(--corp-max);
  margin: 0 auto 34px;
  padding: 0 24px;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.corp-service-rail a {
  display: grid;
  min-height: 104px;
  align-content: center;
  gap: 5px;
  padding: 18px;
  border: 1px solid var(--corp-line);
  border-right: 0;
  background: #fff;
}

.corp-service-rail a:first-child { border-radius: 8px 0 0 8px; }
.corp-service-rail a:last-child { border-right: 1px solid var(--corp-line); border-radius: 0 8px 8px 0; }
.corp-service-rail a:hover { position: relative; z-index: 1; border-color: var(--corp-blue); background: #f8fbff; }
.corp-service-rail strong { font-size: 15px; }
.corp-service-rail span { color: var(--corp-muted); font-size: 12px; line-height: 1.45; }

.corp-section {
  padding: 76px max(24px, calc((100vw - var(--corp-max)) / 2));
}

.corp-section-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.corp-section-heading.row {
  display: flex;
  max-width: none;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}

.corp-section-heading h2,
.corp-youth-band h2,
.corp-contact-intro h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 46px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: 0;
}

.corp-section-heading > p:last-child,
.corp-section-heading.row > p,
.corp-section-heading.row > a {
  margin: 12px 0 0;
  color: var(--corp-muted);
  font-size: 15px;
  line-height: 1.7;
}

.corp-section-heading.row > a {
  color: var(--corp-blue);
  font-weight: 800;
  white-space: nowrap;
}

.corp-outcomes {
  border-top: 1px solid var(--corp-line);
  border-bottom: 1px solid var(--corp-line);
  background: var(--corp-soft);
}

.corp-outcome-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--corp-line);
  border-radius: 8px;
  background: #fff;
}

.corp-outcome-grid article {
  min-height: 190px;
  padding: 28px;
  border-right: 1px solid var(--corp-line);
}

.corp-outcome-grid article:last-child { border-right: 0; }
.corp-outcome-grid span { color: var(--corp-blue); font-size: 13px; font-weight: 900; }
.corp-outcome-grid h3 { margin: 32px 0 10px; font-size: 24px; }
.corp-outcome-grid p { margin: 0; color: var(--corp-muted); font-size: 14px; line-height: 1.7; }

.corp-cases-section {
  background: #fff;
}

.corp-case-row {
  display: grid;
  padding: 42px 0;
  border-top: 1px solid var(--corp-line);
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 56px;
  align-items: center;
}

.corp-case-row.reverse figure { order: 2; }
.corp-case-row figure { margin: 0; overflow: hidden; border: 1px solid var(--corp-line); border-radius: 8px; background: #fff; }
.corp-case-row figure img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.corp-case-tag { margin-bottom: 12px; color: var(--corp-blue); font-size: 13px; font-weight: 850; }
.corp-case-copy h3 { margin: 0 0 16px; font-size: 30px; line-height: 1.25; }
.corp-case-copy > p:not(.corp-case-tag) { color: var(--corp-muted); font-size: 15px; line-height: 1.75; }
.corp-case-copy ul { display: grid; gap: 9px; margin: 20px 0; padding-left: 20px; color: #334155; font-size: 14px; line-height: 1.5; }
.corp-case-copy a { color: var(--corp-blue); font-size: 14px; font-weight: 850; }

.corp-directory-section {
  border-top: 1px solid var(--corp-line);
  background: var(--corp-soft);
}

.corp-directory-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--corp-line);
  border-left: 1px solid var(--corp-line);
}

.corp-directory-grid a {
  display: grid;
  min-height: 112px;
  align-content: center;
  gap: 7px;
  padding: 22px;
  border-right: 1px solid var(--corp-line);
  border-bottom: 1px solid var(--corp-line);
  background: #fff;
}

.corp-directory-grid a:hover { position: relative; z-index: 1; outline: 2px solid var(--corp-blue); }
.corp-directory-grid strong { font-size: 16px; }
.corp-directory-grid span { color: var(--corp-muted); font-size: 12px; }

.corp-directory-more {
  margin-top: 18px;
  border: 1px solid var(--corp-line);
  border-radius: 6px;
  background: #fff;
}

.corp-directory-more summary {
  padding: 15px 18px;
  color: var(--corp-blue);
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
}

.corp-directory-more div {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  padding: 0 18px 18px;
  color: #46556a;
  font-size: 13px;
}

.corp-youth-band {
  display: grid;
  max-width: var(--corp-max);
  margin: 74px auto;
  overflow: hidden;
  border: 1px solid #cfe0f6;
  border-radius: 8px;
  background: #eef6ff;
  grid-template-columns: minmax(0, 1fr) 360px;
  align-items: center;
}

.corp-youth-band > div { padding: 48px; }
.corp-youth-band > div > p:not(.corp-kicker) { max-width: 680px; margin: 18px 0 0; color: var(--corp-muted); line-height: 1.75; }
.corp-youth-band img { width: 100%; height: 100%; min-height: 320px; object-fit: cover; object-position: 53% center; }

.corp-contact-section {
  display: grid;
  border-top: 1px solid var(--corp-line);
  background: #f7f9fc;
  grid-template-columns: minmax(0, 0.72fr) minmax(540px, 1.28fr);
  gap: 56px;
  align-items: start;
}

.corp-contact-intro > p:not(.corp-kicker) { margin-top: 18px; color: var(--corp-muted); line-height: 1.75; }
.corp-contact-points { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 24px; color: #314055; font-size: 13px; font-weight: 750; }
.corp-direct-contact {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.corp-contact-method {
  display: grid;
  min-width: 0;
  min-height: 148px;
  align-content: center;
  gap: 8px;
  margin: 0;
  padding: 22px;
  border: 1px solid var(--corp-line);
  border-radius: 8px;
  background: #fff;
  color: var(--corp-ink);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.corp-contact-method[hidden] {
  display: none;
}

.corp-contact-method:hover,
.corp-contact-method:focus-visible {
  border-color: var(--corp-blue);
  outline: 3px solid rgba(11, 99, 229, 0.12);
}

.corp-contact-method span {
  color: var(--corp-blue);
  font-size: 12px;
  font-weight: 850;
}

.corp-contact-method strong {
  overflow-wrap: anywhere;
  font-size: 18px;
  line-height: 1.35;
}

.corp-contact-method small {
  color: var(--corp-muted);
  font-size: 11px;
}

.corp-contact-pending {
  grid-column: 1 / -1;
  margin: 0;
  padding: 24px;
  border: 1px solid var(--corp-line);
  border-radius: 8px;
  background: #fff;
  color: var(--corp-muted);
  font-size: 14px;
}

.corp-contact-result {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--corp-green);
  font-size: 13px;
  font-weight: 750;
}
.corp-lead-form { display: grid; padding: 28px; border: 1px solid var(--corp-line); border-radius: 8px; background: #fff; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.corp-lead-form label { gap: 8px; color: #283548; font-size: 13px; font-weight: 800; }
.corp-lead-form input,
.corp-lead-form select,
.corp-lead-form textarea { border-color: #cfd9e6; border-radius: 6px; background: #fff; font-size: 14px; }
.corp-lead-form .full-field { grid-column: 1 / -1; }
.corp-lead-form .privacy-check { display: flex; align-items: center; font-weight: 600; }
.corp-lead-form .privacy-check input { width: 18px; height: 18px; margin: 0; }
.corp-lead-form .corp-button { width: 100%; border: 0; }

.corporate-site .company-site-footer {
  border-top: 0;
  background: #071425;
  color: #d8e2ef;
}

.corporate-site .company-site-footer-inner {
  display: grid;
  max-width: var(--corp-max);
  padding: 42px 24px 28px;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 16px 48px;
}

.corporate-site .company-site-footer-name { color: #fff; font-size: 18px; }
.corporate-site .company-site-footer-summary { max-width: 520px; color: #94a6bc; }
.corporate-site .company-site-footer-links { justify-content: flex-end; }
.corporate-site .company-site-footer a { color: #cbd8e8; }
.corporate-site .company-site-footer-sites { grid-column: 1 / -1; padding-top: 20px; border-top: 1px solid #203047; }
.corporate-site .company-site-footer-sites > span { color: #fff; }
.corporate-site .company-site-footer-sites nav { gap: 10px 22px; }
.corporate-site .company-site-footer-copyright { grid-column: 1 / -1; color: #72859c; }
.footer-links-toggle { padding: 0; border: 0; background: transparent; color: #72a8ff; font: inherit; font-size: 12px; font-weight: 800; cursor: pointer; }
.company-site-footer-sites.is-collapsed nav a:nth-child(n + 9) { display: none; }

@media (max-width: 980px) {
  .corp-header { min-height: 68px; padding-inline: 20px; }
  .corp-brand strong { font-size: 16px; }
  .corp-brand small { display: none; }
  .corp-menu-button { display: grid; width: 42px; height: 42px; place-content: center; gap: 5px; border: 1px solid var(--corp-line); border-radius: 6px; background: #fff; }
  .corp-menu-button span { width: 20px; height: 2px; background: var(--corp-ink); }
  .corp-nav { position: absolute; top: 68px; right: 16px; left: 16px; display: none; padding: 10px; border: 1px solid var(--corp-line); border-radius: 8px; background: #fff; box-shadow: 0 18px 50px rgba(15, 31, 54, 0.14); }
  .mobile-nav-toggle:checked ~ .corp-nav { display: grid; }
  .corp-nav a { width: 100%; }
  .corp-nav .corp-nav-cta { margin-left: 0; }
  .corp-hero { min-height: 0; padding-top: 50px; grid-template-columns: 1fr; }
  .corp-hero-copy { max-width: 760px; }
  .corp-hero-visual { max-width: 780px; margin: -8px auto 0; }
  .corp-service-rail { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .corp-service-rail a { border-right: 1px solid var(--corp-line); border-bottom: 0; border-radius: 0 !important; }
  .corp-service-rail a:nth-last-child(-n + 3) { border-bottom: 1px solid var(--corp-line); }
  .corp-outcome-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .corp-outcome-grid article:nth-child(2) { border-right: 0; }
  .corp-outcome-grid article:nth-child(-n + 2) { border-bottom: 1px solid var(--corp-line); }
  .corp-case-row { grid-template-columns: 1fr; gap: 28px; }
  .corp-case-row.reverse figure { order: 0; }
  .corp-case-copy { max-width: 760px; }
  .corp-directory-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .corp-youth-band { margin-inline: 24px; grid-template-columns: 1fr 300px; }
  .corp-contact-section { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .corp-header { padding-inline: 14px; }
  .corp-brand { gap: 9px; }
  .corp-brand-mark { width: 40px; height: 40px; flex-basis: 40px; font-size: 21px; }
  .corp-brand strong { max-width: calc(100vw - 124px); font-size: 15px; }
  .corp-hero { padding: 40px 18px 28px; gap: 22px; }
  .corp-kicker { margin-bottom: 10px; font-size: 12px; }
  .corp-hero h1 { font-size: clamp(42px, 13vw, 56px); }
  .corp-hero-lead { margin-top: 18px; font-size: 15px; line-height: 1.68; }
  .corp-actions { display: grid; margin-top: 22px; grid-template-columns: 1fr 1fr; }
  .corp-button { min-height: 46px; padding: 0 14px; font-size: 14px; }
  .corp-proof-row { display: grid; margin-top: 22px; grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .corp-proof-row span { min-width: 0; padding-right: 6px; border-right: 1px solid var(--corp-line); }
  .corp-proof-row span:last-child { border-right: 0; }
  .corp-proof-row strong { font-size: 11px; }
  .corp-proof-row span { font-size: 10px; }
  .corp-hero-visual img { aspect-ratio: 16 / 10; object-fit: cover; }
  .corp-service-rail { margin-bottom: 8px; padding: 0 18px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .corp-service-rail a { min-height: 88px; padding: 14px; }
  .corp-service-rail a:nth-last-child(-n + 3) { border-bottom: 0; }
  .corp-service-rail a:nth-last-child(-n + 2) { border-bottom: 1px solid var(--corp-line); }
  .corp-service-rail strong { font-size: 14px; }
  .corp-section { padding: 52px 18px; }
  .corp-section-heading { margin-bottom: 24px; }
  .corp-section-heading.row { display: grid; gap: 4px; }
  .corp-section-heading h2,
  .corp-youth-band h2,
  .corp-contact-intro h2 { font-size: 30px; }
  .corp-outcome-grid { grid-template-columns: 1fr 1fr; }
  .corp-outcome-grid article { min-height: 156px; padding: 20px; }
  .corp-outcome-grid h3 { margin: 24px 0 8px; font-size: 20px; }
  .corp-outcome-grid p { font-size: 12px; }
  .corp-case-row { padding: 30px 0; gap: 22px; }
  .corp-case-copy h3 { font-size: 24px; }
  .corp-case-copy > p:not(.corp-case-tag) { font-size: 14px; }
  .corp-directory-grid { grid-template-columns: 1fr 1fr; }
  .corp-directory-grid a { min-height: 94px; padding: 16px; }
  .corp-directory-grid strong { font-size: 14px; }
  .corp-youth-band { margin: 50px 18px; grid-template-columns: 1fr; }
  .corp-youth-band > div { padding: 30px 24px; }
  .corp-youth-band img { width: 100%; height: 210px; min-height: 0; object-position: center 28%; }
  .corp-youth-band .corp-actions { grid-template-columns: 1fr 1fr; }
  .corp-contact-section { gap: 28px; }
  .corp-direct-contact { grid-template-columns: 1fr; }
  .corp-contact-method { min-height: 112px; }
  .corp-lead-form { padding: 20px; grid-template-columns: 1fr; }
  .corp-lead-form .full-field { grid-column: 1; }
  .corporate-site .company-site-footer-inner { padding: 32px 18px 24px; grid-template-columns: 1fr; }
  .corporate-site .company-site-footer-links { justify-content: flex-start; }
  .corporate-site .company-site-footer-sites,
  .corporate-site .company-site-footer-copyright { grid-column: 1; }
}

@media (max-width: 380px) {
  .corp-actions,
  .corp-youth-band .corp-actions { grid-template-columns: 1fr; }
  .corp-outcome-grid,
  .corp-directory-grid { grid-template-columns: 1fr; }
  .corp-outcome-grid article { border-right: 0; border-bottom: 1px solid var(--corp-line); }
}

/* idea-v38: mobile-first density pass, preserving the corporate visual system. */
@media (max-width: 640px) {
  .corp-hero {
    padding-top: 32px;
    padding-bottom: 20px;
    gap: 16px;
  }

  .corp-hero h1 {
    font-size: clamp(42px, 12vw, 50px);
    line-height: 1.01;
  }

  .corp-hero-lead {
    margin-top: 14px;
    line-height: 1.6;
  }

  .corp-actions {
    margin-top: 18px;
  }

  .corp-proof-row {
    margin-top: 16px;
  }

  .corp-hero-visual img {
    height: 185px;
    aspect-ratio: auto;
    object-fit: contain;
  }

  .corp-service-rail a {
    min-height: 78px;
    padding: 12px;
  }

  .corp-section {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .corp-section-heading {
    margin-bottom: 18px;
  }

  .corp-section-heading h2,
  .corp-youth-band h2,
  .corp-contact-intro h2 {
    font-size: 28px;
  }

  .corp-outcome-grid article {
    min-height: 136px;
    padding: 16px;
  }

  .corp-outcome-grid h3 {
    margin-top: 18px;
    font-size: 19px;
  }

  .corp-cases-section .corp-section-heading {
    margin-bottom: 10px;
  }

  .corp-case-row {
    padding: 22px 0;
    gap: 14px;
  }

  .corp-case-row figure img {
    height: 175px;
    aspect-ratio: auto;
    object-fit: contain;
  }

  .corp-case-tag {
    margin-bottom: 8px;
  }

  .corp-case-copy h3 {
    margin-bottom: 10px;
    font-size: 22px;
  }

  .corp-case-copy > p:not(.corp-case-tag) {
    margin-bottom: 12px;
    line-height: 1.62;
  }

  .corp-case-copy ul {
    display: none;
  }

  .corp-directory-grid a {
    min-height: 82px;
    padding: 13px;
  }

  .corp-directory-more {
    margin-top: 14px;
  }

  .corp-youth-band {
    margin: 36px 18px;
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .corp-youth-band > div {
    padding: 22px 18px;
  }

  .corp-youth-band h2 {
    font-size: 25px;
  }

  .corp-youth-band > div > p:not(.corp-kicker) {
    margin-top: 12px;
    font-size: 13px;
    line-height: 1.58;
  }

  .corp-youth-band .corp-actions {
    grid-template-columns: 1fr;
    gap: 8px;
    margin-top: 16px;
  }

  .corp-youth-band .corp-button {
    min-height: 40px;
    font-size: 12px;
  }

  .corp-youth-band img {
    display: none;
  }

  .corp-contact-section {
    gap: 20px;
  }

  .corp-contact-intro > p:not(.corp-kicker) {
    margin-top: 12px;
    line-height: 1.62;
  }

  .corp-contact-pending {
    padding: 18px;
  }

  .corporate-site .company-site-footer-inner {
    padding-top: 28px;
  }
}