:root {
  --ink: #08265f;
  --ink-2: #163f86;
  --blue: #147af7;
  --blue-2: #35a4ff;
  --mint: #16c7a4;
  --green: #13bf79;
  --yellow: #ffd44a;
  --orange: #ff9f32;
  --pink: #ff6fa5;
  --muted: #58709a;
  --line: #cae0f8;
  --paper: #ffffff;
  --bg: #f2f9ff;
  --shadow: 0 18px 42px rgba(22, 102, 190, .16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", system-ui, sans-serif;
  background:
    linear-gradient(90deg, rgba(20, 122, 247, .045) 1px, transparent 1px),
    linear-gradient(0deg, rgba(20, 122, 247, .04) 1px, transparent 1px),
    var(--bg);
  background-size: 38px 38px;
  font-size: 16px;
}

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

button,
input,
textarea {
  font: inherit;
}

[hidden] {
  display: none !important;
}

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: minmax(390px, 1fr) auto minmax(170px, 1fr);
  align-items: center;
  gap: 28px;
  min-height: 84px;
  padding: 10px clamp(20px, 5vw, 90px);
  background: rgba(255, 255, 255, .92);
  border-bottom: 1px solid rgba(202, 224, 248, .86);
  box-shadow: 0 10px 28px rgba(27, 92, 170, .08);
  backdrop-filter: blur(18px);
}

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

.brand-mark {
  position: relative;
  display: block;
  width: 56px;
  height: 56px;
  flex: 0 0 56px;
  overflow: hidden;
  border-radius: 17px;
  background: #0752a8;
  box-shadow: 0 10px 24px rgba(4, 70, 151, .24), inset 0 0 0 1px rgba(255, 219, 126, .34);
}

.brand-mark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-name strong {
  display: block;
  color: var(--ink);
  font-size: 1.38rem;
  line-height: 1;
  letter-spacing: .025em;
  font-weight: 950;
  white-space: nowrap;
}

.brand-name small {
  display: block;
  margin-top: 2px;
  font-size: 1rem;
  font-weight: 900;
}

.brand-slogan {
  position: relative;
  margin-left: 18px;
  color: var(--ink);
  font-size: .98rem;
  font-weight: 900;
  line-height: 1.25;
  transform: rotate(-7deg);
  white-space: nowrap;
}

.brand-slogan::after {
  content: "";
  position: absolute;
  left: 8px;
  right: 0;
  bottom: -8px;
  height: 4px;
  border-radius: 999px;
  background: #20d9f1;
  transform: rotate(-4deg);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.nav a,
.nav button,
.top-action,
.filters button,
.subject-strip span {
  border: 1px solid transparent;
  border-radius: 14px;
  padding: 13px 18px;
  color: var(--ink-2);
  font-weight: 950;
  background: transparent;
  cursor: pointer;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.nav a:hover,
.nav a.active,
.nav button:hover {
  background: #eaf6ff;
  border-color: #b9dbff;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.7);
}

.top-action {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #fff;
  background: linear-gradient(180deg, #178cff, #0866ee);
  box-shadow: 0 14px 26px rgba(8, 102, 238, .28);
}

.top-action span {
  color: var(--yellow);
}

.account-nav {
  grid-column: 2 / 4;
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
}

.account-nav a,
.account-nav button {
  min-height: 46px;
  padding: 11px 17px;
  border: 1px solid #c4dcf7;
  border-radius: 14px;
  color: var(--ink-2);
  background: #fff;
  font-weight: 950;
  cursor: pointer;
}

.account-nav a {
  color: #fff;
  background: linear-gradient(180deg, #178cff, #0866ee);
  border-color: transparent;
  box-shadow: 0 12px 24px rgba(8, 102, 238, .22);
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.hero {
  position: relative;
  overflow: hidden;
  background-image:
    linear-gradient(90deg, rgba(255,255,255,.98) 0%, rgba(255,255,255,.88) 39%, rgba(255,255,255,.12) 68%, rgba(255,255,255,0) 100%),
    url("assets/hero-classroom-v2.webp");
  background-position: center right;
  background-size: cover;
  background-repeat: no-repeat;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 86px;
  background: linear-gradient(0deg, var(--bg), rgba(242,249,255,0));
  pointer-events: none;
}

.hero-home {
  min-height: 540px;
  display: flex;
  align-items: center;
}

.hero-copy {
  position: relative;
  z-index: 1;
  width: min(780px, calc(100% - 42px));
  margin-left: clamp(26px, 5.6vw, 92px);
  padding: 48px 0 110px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  padding: 8px 18px;
  border-radius: 999px;
  color: #06a980;
  background: rgba(218, 255, 246, .85);
  border: 1px solid rgba(22, 199, 164, .28);
  font-weight: 950;
}

.hero-copy h1,
.catalog-copy h1,
.center-copy h1,
.account-hero h1,
.help-copy h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.9rem, 2.7vw, 3rem);
  line-height: 1.06;
  font-weight: 1000;
  letter-spacing: -.035em;
  text-wrap: balance;
}

.device-item small { overflow-wrap: anywhere; max-width: 280px; }
.device-item button { border: 1px solid #c8dcf2; border-radius: 8px; padding: 8px; background: white; color: #1266cc; cursor: pointer; }
.owned-card a { color: inherit; text-decoration: none; }
.hero-title {
  display: block;
  width: 100%;
  max-width: 100%;
}

.hero-title .title-line {
  color: #092968;
  font-weight: 1000;
  letter-spacing: -.045em;
  text-shadow: 0 5px 0 rgba(255, 255, 255, .72);
}

.title-line-top {
  display: inline;
  font-size: clamp(2rem, 3vw, 3.3rem);
  line-height: 1.08;
}

.title-line-mid {
  display: inline;
  margin-left: .12em;
  font-size: clamp(2.1rem, 3.15vw, 3.5rem);
  line-height: 1.08;
}

.title-line-main {
  display: block;
  margin-top: .04em;
  color: #0878f8 !important;
  font-size: clamp(2.2rem, 3.3vw, 3.7rem);
  line-height: 1.02;
}

.hero-title::after {
  content: "";
  display: block;
  width: 36%;
  height: 7px;
  margin: 2px 0 0 33%;
  border-radius: 999px;
  background: linear-gradient(90deg, #ffd84e, rgba(255, 216, 78, 0));
  transform: rotate(-3deg);
}

.hero-sub {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  margin: 26px 0 0;
  color: var(--ink);
  font-size: clamp(1rem, 1.45vw, 1.32rem);
  font-weight: 1000;
  letter-spacing: -.025em;
}

.hero-sub i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--yellow);
  box-shadow: 0 0 0 8px rgba(255, 212, 74, .16);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}

.primary-btn,
.secondary-btn,
.text-link,
.featured-info a,
.catalog-info a,
.help-actions a,
.help-actions button,
.help-card > a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: 14px;
  padding: 0 18px;
  font-weight: 950;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}

.primary-btn {
  color: #fff;
  background: linear-gradient(180deg, #25a4ff, #0769ee);
  box-shadow: 0 18px 34px rgba(8, 105, 238, .28);
}

.secondary-btn {
  color: var(--ink);
  background: rgba(255,255,255,.92);
  border-color: #c8dcf2;
  box-shadow: 0 14px 30px rgba(20, 122, 247, .12);
}

.large {
  min-height: 60px;
  padding-inline: 30px;
  border-radius: 15px;
  font-size: 1.08rem;
}

.full {
  width: 100%;
}

.primary-btn:hover,
.secondary-btn:hover,
.text-link:hover,
.featured-info a:hover,
.catalog-info a:hover,
.help-actions a:hover,
.help-actions button:hover,
.help-card > a:hover,
.top-action:hover,
.filters button:hover {
  transform: translateY(-2px);
}

.hero-note {
  position: absolute;
  z-index: 1;
  left: 52%;
  top: 104px;
  color: #0c59d3;
  font-size: 1rem;
  font-weight: 1000;
  line-height: 1.35;
  transform: rotate(-13deg);
}

.value-strip,
.content-band,
.sell-band,
.login-box,
.activation-divider,
.activate-layout,
.notice-line,
.account-shell,
.help-grid,
.help-actions {
  width: min(1360px, calc(100% - 48px));
  margin-inline: auto;
}

.value-strip {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: -74px;
  padding-bottom: 36px;
}

.value-strip article {
  display: grid;
  grid-template-columns: 54px 1fr;
  column-gap: 12px;
  align-items: center;
  min-height: 78px;
  padding: 12px 16px;
  border-radius: 18px;
  background: rgba(255,255,255,.9);
  border: 1px solid rgba(202, 224, 248, .82);
  box-shadow: var(--shadow);
}

.value-strip span {
  grid-row: span 2;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 16px;
  background: #e7f5ff;
  font-size: 1.45rem;
}

.value-strip strong {
  font-size: 1rem;
}

.value-strip small {
  color: var(--muted);
}

.content-band {
  padding: 40px 0 56px;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.title-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.title-row > span {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: linear-gradient(180deg, #4be0d3, #0b86f6);
  box-shadow: 0 12px 22px rgba(8, 105, 238, .18);
}

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

h2 {
  margin-bottom: 0;
  color: var(--ink);
  font-size: clamp(1.7rem, 2.5vw, 2.55rem);
  line-height: 1.08;
  font-weight: 1000;
}

.title-row p {
  margin: 7px 0 0;
  color: var(--muted);
  font-weight: 700;
}

.text-link {
  color: var(--blue);
  background: rgba(255,255,255,.76);
  border-color: #d8e8f8;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.featured-card,
.catalog-card,
.login-box,
.activate-box,
.account-panel,
.profile-card,
.status-banner,
.help-card {
  background: rgba(255,255,255,.92);
  border: 1px solid rgba(202, 224, 248, .9);
  border-radius: 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.featured-card,
.catalog-card {
  transition: transform .2s ease, box-shadow .2s ease;
}

.featured-card:hover,
.catalog-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 52px rgba(22, 102, 190, .22);
}

.featured-thumb,
.catalog-thumb {
  position: relative;
  display: block;
  background: #dff2ff;
}

.featured-thumb {
  aspect-ratio: 16 / 7.4;
}

.catalog-thumb {
  aspect-ratio: 16 / 8.4;
}

.featured-thumb img,
.catalog-thumb img,
.owned-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.featured-thumb span,
.catalog-thumb span {
  position: relative;
  z-index: 1;
  display: inline-flex;
  margin: 14px 0 0 14px;
  padding: 7px 15px;
  border-radius: 999px;
  color: #0870e4;
  background: rgba(255,255,255,.9);
  font-weight: 950;
  box-shadow: 0 6px 18px rgba(8, 105, 238, .12);
}

.featured-thumb img,
.catalog-thumb img {
  position: absolute;
  inset: 0;
}

.featured-info,
.catalog-info {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  align-items: center;
  padding: 12px 15px 15px;
}

.featured-info h3,
.catalog-info h3 {
  margin: 0 0 5px;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 1000;
}

.featured-info p,
.catalog-info p,
.center-copy p,
.page-head p,
.help-copy p,
.sell-copy p,
.form-note,
.copy-block {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.65;
}

.featured-info a,
.help-card > a {
  width: 46px;
  height: 46px;
  min-height: 46px;
  padding: 0;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(180deg, #2dabff, #0968ee);
  font-size: 2rem;
  box-shadow: 0 12px 24px rgba(8, 105, 238, .24);
}

.hero-games {
  min-height: 320px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 430px);
  align-items: center;
  gap: 34px;
  padding: 38px clamp(24px, 5vw, 90px);
  background-image:
    linear-gradient(90deg, rgba(255,255,255,.95) 0%, rgba(255,255,255,.82) 52%, rgba(255,255,255,.2) 100%),
    url("assets/hero-classroom-v2.webp");
}

.catalog-copy,
.catalog-search,
.center-copy,
.help-copy {
  position: relative;
  z-index: 1;
}

.catalog-copy h1 {
  max-width: 620px;
  font-size: clamp(1.95rem, 2.65vw, 3rem);
  line-height: 1.04;
}

.catalog-copy p:not(.hero-kicker) {
  margin: 12px 0 20px;
  color: var(--ink-2);
  font-size: 1.1rem;
  font-weight: 800;
}

.catalog-search {
  align-self: center;
  padding: 20px;
  border-radius: 999px;
  background: rgba(255,255,255,.92);
  box-shadow: var(--shadow);
}

.catalog-search label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

input {
  width: 100%;
  min-height: 54px;
  border: 1px solid #c8dcf2;
  border-radius: 15px;
  padding: 0 16px;
  color: var(--ink);
  background: rgba(255,255,255,.94);
  font-weight: 700;
}

input:focus {
  border-color: var(--blue);
  outline: 4px solid rgba(20, 122, 247, .13);
}

.filters,
.subject-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.primary-filters {
  margin: 0 0 14px;
}

.filters button,
.subject-strip span {
  min-height: 46px;
  padding-inline: 20px;
  color: var(--ink-2);
  background: rgba(255,255,255,.92);
  cursor: pointer;
}

.filters button.active,
.subject-strip .active {
  color: #fff;
  background: linear-gradient(180deg, #25a4ff, #0866ee);
  border-color: transparent;
  box-shadow: 0 14px 28px rgba(8, 105, 238, .22);
}

.subject-strip span.active {
  color: var(--ink);
  background: #fff1b9;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.demo-entry {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
  padding: 17px 20px;
  border: 1px solid #a9d7c5;
  border-radius: 20px;
  background: linear-gradient(110deg, #f4fff9, #f5f9ff);
  color: #173e4a;
  text-decoration: none;
}
.demo-entry:hover { border-color: #4cbb95; transform: translateY(-2px); }
.demo-entry__icon { display: grid; place-items: center; width: 40px; height: 40px; flex: 0 0 auto; border-radius: 13px; background: #d9f5e9; font-size: 23px; }
.demo-entry strong, .demo-entry small { display: block; }
.demo-entry strong { font-size: 17px; }
.demo-entry small { margin-top: 3px; color: #56707e; }
.demo-entry__arrow { margin-left: auto; white-space: nowrap; color: #127d6b; font-weight: 700; }
@media (max-width: 540px) { .demo-entry { gap: 10px; padding: 14px; } .demo-entry__arrow { font-size: 0; } .demo-entry__arrow::after { content: '→'; font-size: 22px; } }

.catalog-info a {
  width: 100%;
  min-height: 40px;
  border-radius: 12px;
  color: #fff;
  background: linear-gradient(180deg, #25a4ff, #0866ee);
  white-space: nowrap;
}

.hero-activate {
  min-height: 270px;
  display: grid;
  place-items: center;
  text-align: center;
  background-image:
    linear-gradient(90deg, rgba(255,255,255,.88), rgba(255,255,255,.72)),
    url("assets/hero-classroom-v2.webp");
}

.login-box {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: minmax(300px, 1.2fr) minmax(210px, .8fr) minmax(210px, .8fr) auto;
  align-items: end;
  gap: 18px;
  margin-top: -42px;
  padding: 26px 30px;
  background: rgba(255,255,255,.97);
  border: 1px solid rgba(142, 193, 255, .82);
  border-radius: 22px;
  box-shadow: 0 24px 52px rgba(22, 102, 190, .18);
}

.register-box {
  grid-template-columns: minmax(220px, 1.2fr) repeat(3, minmax(135px, .7fr)) auto;
}

.register-result {
  grid-column: 1 / -1;
  margin: 0;
  min-height: 1.2em;
  font-size: 14px;
}

.login-box[data-login] {
  margin-top: 18px;
}

.login-copy {
  display: flex;
  align-items: center;
  gap: 16px;
}

.login-icon {
  display: grid;
  place-items: center;
  width: 62px;
  height: 62px;
  flex: 0 0 62px;
  border-radius: 18px;
  background: linear-gradient(155deg, #fff2b8, #1b91ff);
  box-shadow: 0 12px 24px rgba(20, 122, 247, .18);
  font-size: 1.7rem;
}

.login-copy p {
  margin: 0 0 3px;
  color: var(--blue);
  font-size: .72rem;
  font-weight: 1000;
  letter-spacing: .12em;
}

.login-copy h2 {
  font-size: 1.45rem;
}

.login-copy small {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-weight: 750;
}

.login-box label {
  display: grid;
  gap: 7px;
  color: var(--ink-2);
  font-size: .9rem;
  font-weight: 900;
}

.login-box .primary-btn {
  min-height: 54px;
  white-space: nowrap;
}

.activation-divider {
  margin-top: 30px;
  margin-bottom: 18px;
  text-align: center;
}

.activation-divider span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 1.35rem;
  font-weight: 1000;
}

.activation-divider span::before,
.activation-divider span::after {
  content: "";
  width: clamp(35px, 8vw, 120px);
  height: 2px;
  background: linear-gradient(90deg, transparent, #94c7fb);
}

.activation-divider span::after {
  background: linear-gradient(90deg, #94c7fb, transparent);
}

.activation-divider p {
  margin: 7px 0 0;
  color: var(--muted);
  font-weight: 750;
}

.center-copy {
  width: min(700px, calc(100% - 42px));
}

.center-copy h1 {
  font-size: clamp(2rem, 2.75vw, 3.1rem);
  color: transparent;
  background: linear-gradient(90deg, var(--ink) 0 46%, #0983ff 47% 100%);
  background-clip: text;
}

.center-copy p {
  margin-top: 14px;
  color: var(--ink-2);
  font-size: 1.05rem;
  font-weight: 800;
}

.activate-layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  margin-top: 0;
}

.activate-box {
  padding: 42px 44px 34px;
}

.box-head {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 28px;
}

.box-head > span {
  display: grid;
  place-items: center;
  width: 78px;
  height: 78px;
  border-radius: 50%;
  background: linear-gradient(180deg, #e9f4ff, #147af7);
  font-size: 2.15rem;
  box-shadow: 0 14px 28px rgba(8, 105, 238, .17);
}

.box-head.green > span {
  background: linear-gradient(180deg, #eafff8, #20d39d);
}

.box-head h2 {
  font-size: 2rem;
}

.box-head p {
  margin-top: 8px;
  color: var(--muted);
  font-size: 1.08rem;
}

.activate-box label {
  display: block;
  margin: 18px 0 9px;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 950;
}

.activate-box .primary-btn {
  margin-top: 26px;
  min-height: 58px;
  font-size: 1.18rem;
}

.soft-green {
  background: linear-gradient(180deg, #58d5b7, #15b889);
}

.form-note {
  margin-top: 16px;
  text-align: center;
}

.notice-line {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-top: 28px;
  margin-bottom: 46px;
  padding: 18px 24px;
  border-radius: 18px;
  color: #d3152d;
  background: linear-gradient(90deg, #fff0f1, #ffe3e4);
  border: 1px solid #ffc9cf;
  box-shadow: 0 12px 30px rgba(225, 42, 62, .1);
}

.notice-line strong {
  flex: 0 0 auto;
  font-size: 1.15rem;
}

.notice-line.success {
  color: #058b62;
  background: #eafff6;
  border-color: #b8f2dd;
}

.account-hero {
  min-height: 210px;
  display: flex;
  align-items: center;
  padding: 38px clamp(24px, 5vw, 90px);
  background-image:
    linear-gradient(90deg, rgba(255,255,255,.96) 0%, rgba(255,255,255,.78) 58%, rgba(255,255,255,.1) 100%),
    url("assets/hero-classroom-v2.webp");
  background-position: center right;
  background-size: cover;
}

.account-hero p {
  margin-top: 10px;
  color: var(--ink-2);
  font-size: 1.05rem;
  font-weight: 800;
}

.account-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 22px;
  margin-top: -40px;
  padding-bottom: 48px;
}

.profile-card {
  padding: 24px 18px;
}

.avatar {
  display: grid;
  place-items: center;
  width: 92px;
  height: 92px;
  margin: 0 auto 14px;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(180deg, #ffcf68, #1593ff);
  font-size: 2.2rem;
  font-weight: 1000;
}

.profile-card h2,
.profile-card p {
  text-align: center;
}

.profile-card h2 {
  font-size: 1.45rem;
}

.profile-card p {
  color: var(--muted);
  font-weight: 700;
}

.profile-card nav {
  display: grid;
  gap: 8px;
  margin: 24px 0;
}

.profile-card nav a,
.profile-card nav button {
  padding: 14px 16px;
  border-radius: 13px;
  color: var(--ink-2);
  font-weight: 950;
  width: 100%;
  border: 0;
  background: transparent;
  text-align: left;
  font: inherit;
  cursor: pointer;
}

.profile-card nav a.active,
.profile-card nav a:hover,
.profile-card nav button:hover {
  color: var(--blue);
  background: #eaf6ff;
}

.profile-slogan {
  padding: 22px 12px;
  border-radius: 14px;
  color: #0b58c9;
  background: linear-gradient(135deg, #e4fff9, #eaf5ff);
  text-align: center;
  font-weight: 950;
  line-height: 1.5;
}

.account-main {
  display: grid;
  gap: 18px;
}

.status-banner {
  display: grid;
  grid-template-columns: 74px 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 30px;
}

.status-dot {
  display: grid;
  place-items: center;
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: #ff6d5f;
  box-shadow: 0 12px 28px rgba(255, 109, 95, .2);
}

.status-dot::before {
  content: "!";
  color: #fff;
  font-size: 2rem;
  font-weight: 1000;
}

.status-dot.ok {
  background: linear-gradient(180deg, #28d99c, #03a96d);
  box-shadow: 0 16px 32px rgba(3, 169, 109, .22);
}

.status-dot.ok::before {
  content: "✓";
}

.status-banner h2 {
  font-size: 1.85rem;
}

.status-banner strong {
  color: var(--green);
}

.status-banner p {
  margin-top: 8px;
  color: var(--muted);
  font-weight: 800;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 18px;
}

.account-panel {
  padding: 22px;
}

.account-activation-copy {
  margin: 10px 0 18px;
  color: var(--muted);
  line-height: 1.6;
}

.account-activate-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 14px;
}

.account-activate-form label {
  display: grid;
  gap: 7px;
  font-weight: 900;
}

.account-activate-form .primary-btn {
  min-height: 54px;
  white-space: nowrap;
}

.account-activation-result {
  min-height: 22px;
  margin-top: 12px;
  font-weight: 850;
  color: var(--blue);
}

.panel-kicker {
  margin: 0 0 4px;
  color: var(--blue);
  font-size: .76rem;
  font-weight: 950;
  letter-spacing: .14em;
}

.cloud-library-title > span {
  padding: 7px 11px;
  border-radius: 999px;
  color: #057653;
  background: #dcfaed;
  font-size: .84rem;
  font-weight: 900;
}

.library-type-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.library-type-tabs button,
.cloud-package-head button,
.prompt-helper button,
.danger-outline {
  border: 1px solid #c9def5;
  border-radius: 12px;
  padding: 9px 13px;
  color: var(--ink-2);
  background: #fff;
  font-weight: 900;
  cursor: pointer;
}

.library-type-tabs button.active {
  color: #fff;
  border-color: var(--blue);
  background: var(--blue);
}

.cloud-library-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 16px;
}

.cloud-package-list,
.cloud-library-editor {
  padding: 16px;
  border: 1px solid #d8e8f8;
  border-radius: 16px;
  background: #f8fbff;
}

.cloud-package-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

[data-library-units] {
  display: grid;
  gap: 8px;
}

.cloud-package-item {
  display: grid;
  gap: 3px;
  width: 100%;
  padding: 12px;
  border: 1px solid #d6e7f8;
  border-radius: 12px;
  color: var(--ink-2);
  background: #fff;
  text-align: left;
  cursor: pointer;
}

.cloud-package-item.active {
  color: #075cc7;
  border-color: #73b5ff;
  background: #eaf5ff;
}

.cloud-package-item small,
.cloud-empty,
.library-format-help {
  color: var(--muted);
}

.cloud-empty {
  padding: 18px 8px;
  text-align: center;
  line-height: 1.55;
}

.cloud-library-editor {
  display: grid;
  gap: 12px;
}

.cloud-library-editor > label {
  display: grid;
  gap: 7px;
  color: var(--ink-2);
  font-weight: 900;
}

.cloud-library-editor input,
.cloud-library-editor textarea,
.prompt-helper textarea {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid #c9def5;
  border-radius: 12px;
  color: var(--ink);
  background: #fff;
  resize: vertical;
}

.cloud-library-editor input:focus,
.cloud-library-editor textarea:focus {
  outline: 3px solid rgba(20, 122, 247, .14);
  border-color: var(--blue);
}

.library-format-help,
.cloud-library-message {
  margin: 0;
  font-size: .9rem;
  font-weight: 750;
}

.prompt-helper {
  padding: 12px;
  border: 1px dashed #9fc8f5;
  border-radius: 14px;
  background: #edf7ff;
}

.prompt-helper summary {
  color: #075cc7;
  font-weight: 950;
  cursor: pointer;
}

.prompt-helper textarea {
  margin: 11px 0 8px;
  min-height: 104px;
  line-height: 1.6;
}

.prompt-helper button {
  color: #075cc7;
  border-color: #91c3f7;
}

.cloud-library-actions {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.danger-outline {
  color: #bf2437;
  border-color: #f0b7bf;
}

.cloud-library-message {
  min-height: 1.4em;
  color: #067653;
}

.cloud-library-message.error {
  color: #bd2337;
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.panel-title h2 {
  font-size: 1.55rem;
}

.panel-title a {
  color: var(--blue);
  font-weight: 900;
}

.owned-games {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.owned-card {
  border: 1px solid #d8e8f8;
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
}

.owned-card img {
  aspect-ratio: 16 / 8;
}

.owned-card h3 {
  margin: 10px 10px 4px;
  font-size: 1rem;
  font-weight: 950;
}

.owned-card p {
  margin: 0 10px 10px;
  color: var(--muted);
  font-size: .86rem;
  line-height: 1.45;
}

.owned-card span {
  display: block;
  margin: 0 10px 10px;
  padding: 6px 9px;
  border-radius: 10px;
  color: #04a86f;
  background: #dffced;
  font-weight: 950;
}

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

.device-item {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 13px;
  border-radius: 14px;
  background: #f3f9ff;
  border: 1px solid #d8e8f8;
}

.device-item > span {
  color: var(--blue);
  font-size: 1.3rem;
}

.device-item strong,
.device-item small {
  display: block;
}

.device-item small {
  margin-top: 2px;
  color: var(--muted);
}

.device-item b {
  padding: 6px 10px;
  border-radius: 999px;
  color: #05a66e;
  background: #dcfaed;
}

.order-table {
  display: grid;
  gap: 0;
  overflow-x: auto;
}

.table-head,
.table-row {
  display: grid;
  grid-template-columns: 150px minmax(190px, 1fr) 140px 130px;
  gap: 12px;
  align-items: center;
  min-width: 720px;
  padding: 11px 14px;
}

.table-head {
  color: var(--muted);
  background: #eaf4ff;
  border-radius: 12px;
  font-weight: 900;
}

.table-row {
  border-bottom: 1px solid #d8e8f8;
  color: var(--ink-2);
}

.table-row span:last-child {
  color: var(--green);
  font-weight: 950;
}

.hero-help {
  min-height: 320px;
  display: flex;
  align-items: center;
  padding: 34px clamp(24px, 4vw, 48px) 38px;
}

.help-copy {
  width: min(1080px, 100%);
  margin-inline: auto;
}

.help-copy h1 {
  font-size: clamp(2rem, 2.75vw, 3.1rem);
  color: var(--ink);
}

.help-copy p {
  margin-top: 14px;
  color: var(--ink-2);
  font-size: 1.05rem;
  font-weight: 800;
}

.help-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 28px 0 18px;
}

.help-card {
  position: relative;
  display: grid;
  grid-template-columns: 160px 1fr 46px;
  align-items: center;
  gap: 18px;
  min-height: 164px;
  padding: 22px;
}

.help-figure {
  display: grid;
  place-items: center;
  width: 142px;
  height: 118px;
  border-radius: 20px;
  color: #fff;
  background: linear-gradient(150deg, #6be1d8, #1684f8);
  font-size: 3rem;
  font-weight: 1000;
  box-shadow: inset 0 -20px 40px rgba(8, 38, 95, .1);
}

.parent-card .help-figure {
  background: linear-gradient(150deg, #ffb37b, #ff6fa5);
}

.delivery-card .help-figure {
  background: linear-gradient(150deg, #ffd982, #ff9e36);
}

.order-card .help-figure {
  background: linear-gradient(150deg, #90d9ff, #16c7a4);
}

.help-card ol,
.help-card ul {
  display: grid;
  gap: 7px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  color: var(--ink-2);
  font-weight: 800;
}

.help-card li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.help-card li b {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
  border-radius: 50%;
  color: #fff;
  background: var(--blue);
}

.parent-card li b {
  background: var(--green);
}

.help-card p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.75;
  font-weight: 800;
}

.help-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 0 0 48px;
}

.help-actions a,
.help-actions button {
  min-height: 58px;
  color: var(--ink-2);
  background: rgba(255,255,255,.94);
  border-color: #d8e8f8;
  box-shadow: 0 12px 26px rgba(22, 102, 190, .12);
}

.help-search {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 11px;
  width: min(580px, 100%);
  min-height: 56px;
  margin-top: 24px;
  padding: 0 16px;
  border: 1px solid rgba(20, 122, 247, .22);
  border-radius: 18px;
  background: rgba(255, 255, 255, .92);
  box-shadow: 0 14px 34px rgba(22, 102, 190, .12);
}

.help-search > span:first-child {
  color: var(--blue);
  font-size: 1.65rem;
  font-weight: 900;
  transform: rotate(-18deg);
}

.help-search input {
  min-width: 0;
  padding: 15px 0;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font-weight: 800;
}

.help-search input::placeholder {
  color: #7790b5;
}

.help-search button {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  color: var(--muted);
  background: #eaf4ff;
  cursor: pointer;
}

.help-center {
  display: grid;
  gap: 22px;
  width: min(1080px, calc(100% - 48px));
  margin: 24px auto 22px;
  position: relative;
  z-index: 2;
}

.quick-start,
.faq-shell {
  border: 1px solid #d8e8f8;
  border-radius: 26px;
  background: rgba(255, 255, 255, .96);
  box-shadow: var(--shadow);
}

.quick-start {
  padding: 24px;
}

.faq-shell {
  padding: 28px;
}

.help-section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
}

.help-section-head p {
  margin: 0 0 5px;
  color: var(--blue);
  font-size: .76rem;
  font-weight: 950;
  letter-spacing: .14em;
}

.help-section-head h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.35rem, 2vw, 1.85rem);
}

.help-section-head > span {
  flex: 0 0 auto;
  padding: 7px 11px;
  border-radius: 999px;
  color: var(--ink-2);
  background: #eaf4ff;
  font-size: .82rem;
  font-weight: 900;
}

.quick-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.quick-steps li {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-height: 82px;
  padding: 13px;
  border-radius: 18px;
  background: linear-gradient(145deg, #f4faff, #eaf5ff);
}

.quick-steps b {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 13px;
  color: #fff;
  background: linear-gradient(145deg, var(--blue-2), var(--blue));
  font-size: .76rem;
  box-shadow: 0 8px 18px rgba(20, 122, 247, .22);
}

.quick-steps strong,
.quick-steps small {
  display: block;
}

.quick-steps strong {
  color: var(--ink);
  font-size: .98rem;
}

.quick-steps small {
  margin-top: 3px;
  color: var(--muted);
  font-size: .75rem;
  line-height: 1.35;
  font-weight: 800;
}

.faq-heading {
  padding-bottom: 20px;
  border-bottom: 1px solid #e0edf9;
}

.help-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding: 18px 0;
}

.help-filters button {
  min-height: 38px;
  padding: 8px 15px;
  border: 1px solid #d6e7f8;
  border-radius: 999px;
  color: var(--ink-2);
  background: #fff;
  font-weight: 900;
  cursor: pointer;
}

.help-filters button:hover,
.help-filters button.active {
  border-color: var(--blue);
  color: #fff;
  background: var(--blue);
}

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

.faq-item {
  overflow: hidden;
  border: 1px solid #dceafa;
  border-radius: 17px;
  background: #fff;
  transition: border-color .18s ease, box-shadow .18s ease;
}

.faq-item:hover,
.faq-item[open] {
  border-color: rgba(20, 122, 247, .42);
  box-shadow: 0 10px 24px rgba(22, 102, 190, .08);
}

.faq-item summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 28px;
  align-items: center;
  gap: 16px;
  min-height: 58px;
  padding: 14px 17px;
  color: var(--ink);
  font-weight: 950;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary i {
  position: relative;
  display: block;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #eaf4ff;
}

.faq-item summary i::before,
.faq-item summary i::after {
  content: "";
  position: absolute;
  top: 13px;
  left: 8px;
  width: 12px;
  height: 2px;
  border-radius: 999px;
  background: var(--blue);
  transition: transform .18s ease;
}

.faq-item summary i::after {
  transform: rotate(90deg);
}

.faq-item[open] summary i::after {
  transform: rotate(0);
}

.faq-item > p {
  margin: 0;
  padding: 0 58px 17px 17px;
  color: var(--muted);
  font-size: .94rem;
  line-height: 1.75;
  font-weight: 750;
}

.faq-item em {
  color: var(--ink-2);
  font-style: normal;
  font-weight: 900;
}

.help-empty {
  display: grid;
  justify-items: center;
  gap: 6px;
  padding: 42px 20px;
  border: 1px dashed #bcd7f2;
  border-radius: 18px;
  color: var(--muted);
  text-align: center;
}

.help-empty strong {
  color: var(--ink);
}

.help-actions {
  width: min(1080px, calc(100% - 48px));
  margin-inline: auto;
}

.support-dialog {
  width: min(900px, calc(100% - 28px));
  max-height: calc(100dvh - 28px);
  padding: 0;
  border: 0;
  border-radius: 26px;
  color: var(--ink);
  background: transparent;
  overflow: visible;
}

.support-dialog::backdrop {
  background: rgba(5, 25, 54, .62);
  backdrop-filter: blur(8px);
}

.support-sheet {
  max-height: calc(100dvh - 28px);
  overflow: auto;
  padding: 26px;
  border: 1px solid rgba(202, 224, 248, .95);
  border-radius: 26px;
  background: #f7fbff;
  box-shadow: 0 34px 90px rgba(5, 38, 88, .32);
}

.support-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}

.support-head p {
  margin: 0 0 5px;
  color: var(--blue);
  font-size: .72rem;
  font-weight: 1000;
  letter-spacing: .16em;
}

.support-head h2 {
  font-size: 2rem;
}

.support-head span {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-weight: 750;
}

.support-close {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  border: 1px solid #c8dcf2;
  border-radius: 50%;
  color: var(--ink-2);
  background: #fff;
  font-size: 1.7rem;
  cursor: pointer;
}

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

.support-card {
  padding: 20px;
  border: 1px solid #d3e5f7;
  border-radius: 21px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(22, 102, 190, .1);
}

.support-card.technical {
  background: linear-gradient(180deg, #fff, #fffaf2);
  border-color: #efdfc8;
}

.support-card-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.support-card-title > span {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 15px;
  color: #fff;
  background: linear-gradient(155deg, #36b7ff, #0866ee);
  font-size: 1.15rem;
  font-weight: 1000;
}

.technical .support-card-title > span {
  background: linear-gradient(155deg, #f2b741, #154b9b);
}

.support-card-title p {
  margin: 0 0 2px;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 850;
}

.support-card-title h3 {
  margin: 0;
  font-size: 1.28rem;
}

.support-card > img {
  display: block;
  width: min(100%, 300px);
  height: 270px;
  margin: 0 auto;
  object-fit: contain;
  border: 1px solid #e0ebf6;
  border-radius: 16px;
  background: #fff;
}

.wechat-id {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 9px;
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 13px;
  background: #eaf6ff;
}

.wechat-id span {
  color: var(--muted);
  font-size: .82rem;
  font-weight: 800;
}

.wechat-id strong {
  color: var(--blue);
  user-select: all;
}

.wechat-id button {
  min-height: 34px;
  padding: 0 12px;
  border: 0;
  border-radius: 10px;
  color: #fff;
  background: var(--blue);
  font-weight: 900;
  cursor: pointer;
}

.scan-note {
  margin: 14px 0 0;
  min-height: 54px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  color: #805b16;
  background: #fff4d8;
  font-weight: 900;
}

.support-scope {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.65;
  font-weight: 750;
}

.support-tip {
  margin: 18px 0 0;
  padding: 12px 15px;
  border-radius: 13px;
  color: var(--ink-2);
  background: #eaf4ff;
  text-align: center;
  font-weight: 800;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  padding: 24px;
  color: var(--muted);
  background: rgba(255,255,255,.92);
  border-top: 1px solid #d8e8f8;
  font-weight: 800;
}

.footer button {
  padding: 0;
  border: 0;
  color: var(--muted);
  background: transparent;
  font-weight: 800;
  cursor: pointer;
}

@media (max-width: 1120px) {
  .topbar {
    grid-template-columns: 1fr;
    justify-items: start;
    gap: 12px;
  }

  .nav {
    justify-content: flex-start;
    width: 100%;
    overflow-x: auto;
  }

  .top-action {
    justify-self: start;
  }

  .brand-slogan {
    display: none;
  }

  .value-strip,
  .featured-grid,
  .help-actions {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-games,
  .login-box,
  .activate-layout,
  .account-shell,
  .dashboard-grid,
  .cloud-library-layout,
  .help-grid {
    grid-template-columns: 1fr;
  }

  .login-box {
    align-items: stretch;
  }

  .register-box,
  .account-activate-form {
    grid-template-columns: 1fr;
  }

  .catalog-search {
    width: min(520px, 100%);
  }

  .profile-card {
    display: none;
  }

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

@media (max-width: 700px) {
  .topbar {
    position: relative;
    min-height: auto;
    padding: 10px 14px;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
    flex-basis: 42px;
    border-radius: 12px;
  }

  .brand-name strong {
    font-size: 1rem;
  }

  .brand-name small {
    font-size: .78rem;
  }

  .nav {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 5px;
  }

  .nav a,
  .nav button {
    padding: 8px 4px;
    text-align: center;
    font-size: .86rem;
    line-height: 1.2;
  }

  .top-action {
    display: none;
  }

  .account-nav {
    grid-column: 1;
    justify-self: stretch;
    width: 100%;
  }

  .account-nav a,
  .account-nav button {
    flex: 1;
    text-align: center;
  }

  .hero {
    background-image:
      linear-gradient(180deg, rgba(255,255,255,.98) 0%, rgba(255,255,255,.88) 52%, rgba(255,255,255,.12) 100%),
      url("assets/hero-classroom-v2.webp");
  }

  .hero-home {
    min-height: 500px;
    align-items: flex-start;
    background-position: 62% bottom;
  }

  .hero-copy {
    margin-left: 18px;
    padding-top: 28px;
  }

  .hero-copy h1,
  .catalog-copy h1,
  .center-copy h1,
  .account-hero h1,
  .help-copy h1 {
    font-size: clamp(2rem, 9.5vw, 2.8rem);
  }

  .hero-title .title-line {
    letter-spacing: -.055em;
    text-shadow: 0 5px 0 rgba(255, 255, 255, .78);
  }

  .title-line-top {
    display: inline;
    font-size: clamp(2.2rem, 10.5vw, 3.1rem);
    line-height: .96;
  }

  .title-line-mid {
    display: inline;
    margin-left: .08em;
    font-size: clamp(2.35rem, 11vw, 3.3rem);
    line-height: .94;
  }

  .title-line-main {
    display: block;
    font-size: clamp(2.4rem, 11.2vw, 3.4rem);
    line-height: .94;
  }

  .hero-title::after {
    height: 6px;
    margin-left: 28%;
  }

  .hero-sub,
  .catalog-copy p:not(.hero-kicker),
  .center-copy p,
  .account-hero p,
  .help-copy p {
    font-size: 1rem;
  }

  .hero-sub {
    display: flex;
    flex-wrap: wrap;
    gap: 9px 12px;
    margin-top: 18px;
    font-size: 1.2rem;
  }

  .hero-sub i {
    width: 7px;
    height: 7px;
  }

  .hero-note {
    display: none;
  }

  .hero-actions,
  .section-head {
    align-items: stretch;
    flex-direction: column;
  }

  .large {
    width: 100%;
    min-height: 54px;
    font-size: 1rem;
  }

  .value-strip,
  .featured-grid,
  .catalog-grid,
  .help-actions,
  .owned-games {
    grid-template-columns: 1fr;
  }

  .value-strip {
    margin-top: 0;
    padding-top: 18px;
  }

  .content-band,
  .value-strip,
  .login-box,
  .activation-divider,
  .activate-layout,
  .notice-line,
  .account-shell,
  .help-grid,
  .help-actions {
    width: min(100% - 28px, 1360px);
  }

  .help-center {
    width: calc(100% - 28px);
    margin-top: 16px;
  }

  .hero-games {
    min-height: auto;
    padding: 26px 14px 34px;
    background-position: 62% bottom;
  }

  .catalog-search {
    border-radius: 18px;
    padding: 12px;
  }

  .filters button,
  .subject-strip span {
    min-height: 44px;
    padding: 10px 14px;
  }

  .catalog-info {
    grid-template-columns: 1fr;
  }

  .catalog-info a {
    width: 100%;
  }

  .hero-activate,
  .hero-help {
    min-height: 250px;
    padding: 26px 14px 54px;
  }

  .hero-help {
    min-height: auto;
    padding-bottom: 28px;
  }

  .help-copy {
    width: 100%;
    margin-inline: 0;
  }

  .activate-layout {
    margin-top: 0;
  }

  .login-box {
    margin-top: -34px;
    padding: 20px 16px;
  }

  .login-copy {
    align-items: flex-start;
  }

  .activation-divider {
    margin-top: 24px;
  }

  .activate-box {
    padding: 24px 18px;
  }

  .box-head {
    align-items: flex-start;
    gap: 14px;
  }

  .box-head > span {
    width: 58px;
    height: 58px;
    font-size: 1.55rem;
  }

  .box-head h2 {
    font-size: 1.5rem;
  }

  .notice-line {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .account-hero {
    min-height: 190px;
    padding: 28px 18px 58px;
  }

  .account-shell {
    margin-top: -38px;
  }

  .status-banner {
    grid-template-columns: 52px 1fr;
    padding: 22px 18px;
  }

  .status-dot {
    width: 52px;
    height: 52px;
  }

  .status-banner .primary-btn {
    grid-column: 1 / -1;
  }

  .help-card {
    grid-template-columns: 1fr;
    padding: 20px;
  }

  .help-figure {
    width: 100%;
    height: 120px;
  }

  .help-card > a {
    width: 100%;
    border-radius: 14px;
  }

  .help-search {
    min-height: 52px;
    margin-top: 18px;
  }

  .quick-start,
  .faq-shell {
    padding: 18px 14px;
    border-radius: 20px;
  }

  .help-section-head {
    align-items: flex-start;
  }

  .quick-steps {
    grid-template-columns: 1fr;
    gap: 8px;
    margin-top: 16px;
  }

  .quick-steps li {
    min-height: 68px;
  }

  .help-filters {
    flex-wrap: nowrap;
    margin-inline: -14px;
    padding-inline: 14px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .help-filters::-webkit-scrollbar {
    display: none;
  }

  .help-filters button {
    flex: 0 0 auto;
  }

  .faq-item summary {
    padding: 13px 14px;
    font-size: .94rem;
  }

  .faq-item > p {
    padding: 0 48px 15px 14px;
    font-size: .9rem;
  }

  .support-dialog {
    width: calc(100% - 18px);
    max-height: calc(100dvh - 18px);
  }

  .support-sheet {
    max-height: calc(100dvh - 18px);
    padding: 18px 13px;
    border-radius: 20px;
  }

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

  .support-card {
    padding: 15px;
  }

  .support-card > img {
    height: auto;
    max-height: 310px;
  }
}