:root {
  color-scheme: light;
  --navy: #07152d;
  --navy-soft: #102342;
  --lime: #c9ff36;
  --lime-deep: #91d700;
  --paper: #f8f9f2;
  --white: #ffffff;
  --ink: #0d1728;
  --muted: #5e6878;
  --line: #dfe4dc;
  --wechat: #07c160;
  --amber: #f7a928;
  --amber-soft: #fff7e4;
  --radius: 18px;
  --shadow: 0 24px 70px rgba(7, 21, 45, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

button,
a {
  font: inherit;
}

button {
  color: inherit;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
}

.shell {
  width: min(1160px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  width: min(1160px, calc(100% - 40px));
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 30px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
  text-decoration: none;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--navy);
  color: var(--lime);
  font-size: 21px;
  font-weight: 950;
}

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

.brand strong {
  font-size: 14px;
  letter-spacing: 0.1em;
}

.brand small {
  margin-top: 1px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.header-wechat {
  display: grid;
  grid-template-columns: auto auto;
  gap: 3px 9px;
  align-items: center;
  border: 1px solid #d9e1d2;
  border-radius: 12px;
  background: var(--white);
  padding: 9px 13px;
}

.header-wechat span {
  color: var(--muted);
  font-size: 11px;
}

.header-wechat strong {
  color: var(--navy);
  font-size: 14px;
  letter-spacing: 0.03em;
}

nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

nav a {
  color: #3a4657;
  font-size: 14px;
  font-weight: 750;
  text-decoration: none;
}

nav a:hover {
  color: var(--ink);
}

.header-contact {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 12px;
  background: var(--navy);
  color: var(--white);
  padding: 0 18px;
  font-weight: 850;
  text-decoration: none;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(390px, 0.92fr);
  gap: 50px;
  align-items: center;
  min-height: 650px;
  overflow: hidden;
  border-radius: 28px;
  background:
    radial-gradient(circle at 92% 6%, rgba(201, 255, 54, 0.22), transparent 28%),
    var(--white);
  padding: 72px 66px;
  box-shadow: var(--shadow);
}

.hero::before {
  content: "";
  position: absolute;
  left: 36%;
  bottom: -180px;
  width: 440px;
  height: 340px;
  border: 1px solid rgba(145, 215, 0, 0.22);
  border-radius: 50%;
}

.hero-copy,
.hero-visual,
.hero-wechat-panel {
  position: relative;
  z-index: 1;
}

.hero-wechat-panel {
  width: min(340px, 100%);
  justify-self: end;
  overflow: hidden;
  border: 6px solid var(--white);
  border-radius: 20px;
  background: var(--white);
  box-shadow: 0 26px 58px rgba(7, 21, 45, 0.2);
}

.hero-wechat-panel img {
  width: 100%;
  height: auto;
  display: block;
}

.hero-wechat-panel > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid #e7ece3;
  background: #f7fbef;
  padding: 12px 14px;
}

.hero-wechat-panel span {
  color: var(--muted);
  font-size: 11px;
}

.hero-wechat-panel strong {
  color: var(--navy);
  font-size: 13px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 14px;
  color: var(--lime-deep);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow span {
  width: 28px;
  height: 4px;
  border-radius: 99px;
  background: var(--lime);
}

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

h1 {
  max-width: 650px;
  margin-bottom: 24px;
  font-size: clamp(48px, 4.4vw, 60px);
  font-weight: 950;
  letter-spacing: -0.055em;
  line-height: 1.05;
}

h1 em {
  display: block;
  color: var(--lime-deep);
  font-style: normal;
}

.hero-lead {
  max-width: 620px;
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 30px;
}

.hero-tags span {
  border: 1px solid #dce3d3;
  border-radius: 999px;
  background: #fbfcf7;
  padding: 8px 12px;
  color: #44505e;
  font-size: 13px;
  font-weight: 800;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 14px;
  padding: 0 20px;
  cursor: pointer;
  font-weight: 900;
  text-decoration: none;
}

.button-primary {
  border-color: var(--navy);
  background: var(--navy);
  color: var(--white);
  box-shadow: 0 12px 28px rgba(7, 21, 45, 0.18);
}

.button-primary:hover {
  background: #0f274c;
}

.button-ghost {
  border-color: #d7ddd4;
  background: var(--white);
  color: var(--ink);
}

.button-ghost:hover {
  border-color: #aeb7aa;
}

.microcopy {
  margin: 15px 0 0;
  color: #747d89;
  font-size: 13px;
}

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

.hero-visual {
  min-height: 480px;
  display: grid;
  place-items: center;
}

.orbit {
  position: absolute;
  border: 1px solid rgba(201, 255, 54, 0.42);
  border-radius: 50%;
  transform: rotate(-16deg);
}

.orbit-one {
  width: 520px;
  height: 220px;
}

.orbit-two {
  width: 400px;
  height: 165px;
  transform: rotate(24deg);
}

.virtual-card {
  position: relative;
  z-index: 2;
  width: min(430px, 100%);
  aspect-ratio: 1.58;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 25px;
  background:
    radial-gradient(circle at 86% 16%, rgba(201, 255, 54, 0.34), transparent 26%),
    linear-gradient(145deg, #07152d 8%, #102a50 56%, #061124 100%);
  color: var(--white);
  padding: 28px;
  box-shadow: 0 34px 60px rgba(7, 21, 45, 0.34);
  transform: rotate(-5deg);
}

.virtual-card::after {
  content: "";
  position: absolute;
  right: -100px;
  bottom: -160px;
  width: 360px;
  height: 300px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
}

.card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 900;
}

.card-brand {
  color: var(--lime);
  letter-spacing: 0.08em;
}

.visa-word {
  font-size: 22px;
  font-style: italic;
}

.card-chip {
  width: 52px;
  height: 40px;
  margin: 42px 0 18px;
  border: 1px solid rgba(7, 21, 45, 0.34);
  border-radius: 9px;
  background:
    linear-gradient(90deg, transparent 47%, rgba(7, 21, 45, 0.3) 48%, rgba(7, 21, 45, 0.3) 52%, transparent 53%),
    linear-gradient(rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.4)),
    var(--lime);
}

.card-label {
  margin-bottom: 7px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 9px;
  letter-spacing: 0.16em;
}

.card-number {
  margin-bottom: 24px;
  font-size: clamp(17px, 2vw, 22px);
  letter-spacing: 0.07em;
}

.card-meta {
  display: flex;
  gap: 34px;
  color: rgba(255, 255, 255, 0.56);
  font-size: 8px;
  letter-spacing: 0.08em;
}

.card-meta b {
  display: block;
  margin-top: 3px;
  color: var(--white);
  font-size: 10px;
}

.balance-panel {
  position: absolute;
  z-index: 3;
  right: -5px;
  bottom: 22px;
  width: 260px;
  display: grid;
  grid-template-columns: 12px 1fr auto;
  gap: 10px;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.92);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.9);
  padding: 14px 16px;
  box-shadow: 0 20px 45px rgba(7, 21, 45, 0.18);
  backdrop-filter: blur(15px);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--lime-deep);
  box-shadow: 0 0 0 5px rgba(145, 215, 0, 0.14);
}

.balance-panel small,
.balance-panel strong {
  display: block;
}

.balance-panel small {
  margin-bottom: 2px;
  color: #7a8390;
  font-size: 10px;
}

.balance-panel strong {
  font-size: 13px;
}

.balance-value {
  text-align: right;
}

.security-badge {
  position: absolute;
  z-index: 4;
  top: 56px;
  right: 18px;
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border: 7px solid var(--white);
  border-radius: 50%;
  background: var(--lime);
  color: var(--navy);
  box-shadow: 0 14px 30px rgba(7, 21, 45, 0.18);
  font-size: 25px;
  font-weight: 950;
}

.proof-strip {
  width: min(1060px, calc(100% - 60px));
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: -28px auto 0;
  position: relative;
  z-index: 2;
  border: 1px solid #dce2d8;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.96);
  padding: 20px;
  box-shadow: 0 18px 42px rgba(7, 21, 45, 0.09);
}

.proof-strip div {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
  align-items: center;
  padding: 0 20px;
  border-right: 1px solid var(--line);
}

.proof-strip div:last-child {
  border-right: 0;
}

.proof-strip strong {
  grid-row: span 2;
  color: var(--navy);
  font-size: 19px;
  font-weight: 950;
}

.proof-strip span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.section {
  padding-top: 118px;
  padding-bottom: 118px;
  scroll-margin-top: 20px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.48fr);
  gap: 50px;
  align-items: end;
  margin-bottom: 42px;
}

.section-heading h2,
.risk h2,
.contact h2 {
  margin-bottom: 0;
  font-size: clamp(34px, 4vw, 54px);
  font-weight: 950;
  letter-spacing: -0.04em;
  line-height: 1.13;
}

.section-heading > p {
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

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

.support-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: 30px;
  box-shadow: 0 14px 42px rgba(7, 21, 45, 0.06);
}

.support-primary {
  grid-row: span 2;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at 90% 8%, rgba(201, 255, 54, 0.35), transparent 28%),
    var(--navy);
  color: var(--white);
}

.support-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 38px;
}

.service-icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 17px;
  font-size: 13px;
  font-weight: 950;
  letter-spacing: -0.04em;
}

.service-chatgpt {
  background: var(--white);
  color: var(--navy);
}

.service-claude {
  background: #e9764f;
  color: var(--white);
  font-family: Georgia, serif;
  font-size: 27px;
}

.service-more {
  background: var(--lime);
  color: var(--navy);
  font-size: 20px;
}

.status-pill {
  border-radius: 999px;
  padding: 7px 11px;
  font-size: 12px;
  font-weight: 900;
}

.recommended {
  background: var(--lime);
  color: var(--navy);
}

.caution {
  background: #fff0cc;
  color: #995600;
}

.supported {
  background: #e8f8ef;
  color: #087b43;
}

.card-kicker {
  margin-bottom: 8px;
  color: var(--lime-deep);
  font-size: 14px;
  font-weight: 900;
}

.support-warning .card-kicker {
  color: #c36d00;
}

.support-card h3 {
  margin-bottom: 15px;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.16;
}

.support-card > p:not(.card-kicker) {
  margin-bottom: 24px;
  color: var(--muted);
  line-height: 1.75;
}

.support-primary > p:not(.card-kicker) {
  color: rgba(255, 255, 255, 0.67);
}

.plan-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: auto;
}

.plan-tags span {
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.07);
  padding: 11px 13px;
  font-size: 13px;
  font-weight: 850;
}

.inline-notice {
  border-left: 4px solid var(--amber);
  border-radius: 8px;
  background: var(--amber-soft);
  color: #724300;
  padding: 13px 15px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.65;
}

.platform-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.platform-list span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fafbf8;
  padding: 8px 11px;
  font-size: 13px;
  font-weight: 800;
}

.platform-list b {
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: var(--navy);
  color: var(--lime);
}

.platform-list .platform-more {
  border-color: transparent;
  background: transparent;
  color: var(--lime-deep);
}

.claim-section {
  padding-top: 42px;
}

.claim-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.claim-facts div {
  border: 1px solid #d8e0cf;
  border-radius: 15px;
  background: #f1f8df;
  padding: 16px 18px;
}

.claim-facts strong,
.claim-facts span {
  display: block;
}

.claim-facts strong {
  margin-bottom: 4px;
  color: var(--navy);
  font-size: 15px;
}

.claim-facts span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.claim-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(260px, 0.78fr);
  gap: 18px;
  align-items: stretch;
}

.claim-card,
.claim-result {
  position: relative;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 16px 46px rgba(7, 21, 45, 0.07);
}

.claim-index {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--lime);
  color: var(--navy);
  font-size: 13px;
  font-weight: 950;
}

.claim-card > .claim-index {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  border: 5px solid var(--white);
  box-sizing: content-box;
}

.claim-media {
  aspect-ratio: 4 / 5;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: #eef2e9;
}

.claim-media img {
  width: 100%;
  height: 100%;
  display: block;
}

.qr-demo img {
  object-fit: contain;
}

.invitation-shot img {
  object-fit: cover;
  object-position: center center;
}

.claim-card figcaption,
.feature-media-card figcaption {
  display: grid;
  gap: 5px;
  padding: 18px;
}

.claim-card figcaption strong,
.feature-media-card figcaption strong {
  font-size: 17px;
}

.claim-card figcaption span,
.feature-media-card figcaption span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.claim-result {
  display: flex;
  flex-direction: column;
  justify-content: center;
  background:
    radial-gradient(circle at 100% 0%, rgba(201, 255, 54, 0.28), transparent 36%),
    var(--navy);
  color: var(--white);
  padding: 30px;
}

.claim-result .claim-index {
  margin-bottom: 48px;
}

.claim-result h3 {
  margin-bottom: 14px;
  font-size: 30px;
  line-height: 1.18;
}

.claim-result > p:not(.card-kicker) {
  margin-bottom: 26px;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.75;
}

.claim-result ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  line-height: 1.55;
}

.claim-result li::before {
  content: "✓";
  margin-right: 8px;
  color: var(--lime);
  font-weight: 950;
}

.section-dark {
  background: var(--navy);
  color: var(--white);
}

.section-heading.inverted > p {
  color: rgba(255, 255, 255, 0.58);
}

.feature-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.feature-summary article {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.045);
  padding: 24px;
}

.feature-summary article > span {
  display: block;
  margin-bottom: 34px;
  color: var(--lime);
  font-size: 13px;
  font-weight: 950;
}

.feature-summary h3 {
  margin-bottom: 8px;
  font-size: 22px;
}

.feature-summary p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 14px;
  line-height: 1.7;
}

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

.feature-media-card,
.wechat-poster {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 0;
  padding: 0;
}

.feature-media-card {
  border-radius: var(--radius);
  background: var(--white);
}

.feature-media-card img {
  width: 100%;
  height: auto;
  display: block;
}

.feature-media-card figcaption {
  color: var(--ink);
}

.steps-section {
  padding-bottom: 90px;
}

.use-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.use-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: 22px;
}

.use-grid article > span {
  display: block;
  margin-bottom: 34px;
  color: var(--lime-deep);
  font-size: 13px;
  font-weight: 950;
}

.use-grid h3 {
  margin-bottom: 8px;
  font-size: 20px;
}

.use-grid p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.steps-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.67fr);
  gap: 26px;
  align-items: start;
}

.steps-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps-list li {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: 24px;
}

.steps-list li > span {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 17px;
  background: var(--lime);
  color: var(--navy);
  font-weight: 950;
}

.steps-list h3 {
  margin-bottom: 7px;
  font-size: 22px;
}

.steps-list p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.7;
}

.guide-preview {
  position: relative;
  display: block;
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.guide-preview img {
  width: 100%;
  height: auto;
  display: block;
}

.risk {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 26px;
  align-items: center;
  border: 1px solid #efcb81;
  border-radius: 24px;
  background: #fff6df;
  padding: 40px 44px;
}

.risk-icon {
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  border-radius: 22px;
  background: var(--amber);
  color: var(--white);
  font-size: 36px;
  font-weight: 950;
}

.risk .eyebrow {
  color: #bd6b00;
  letter-spacing: 0.08em;
}

.risk h2 {
  margin-bottom: 12px;
  font-size: clamp(28px, 3.2vw, 42px);
}

.risk p:last-child {
  margin-bottom: 0;
  color: #74511e;
  line-height: 1.75;
}

.faq-section {
  padding-top: 90px;
  padding-bottom: 86px;
}

.section-heading.compact {
  grid-template-columns: 1fr;
  margin-bottom: 28px;
}

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

.faq-list article {
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--white);
  padding: 19px 20px;
}

.faq-list h3 {
  margin-bottom: 0;
  font-size: 17px;
  font-weight: 900;
}

.faq-list p {
  margin: 13px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 60px;
  align-items: center;
  overflow: hidden;
  border-radius: 28px;
  background:
    radial-gradient(circle at 96% 0%, rgba(201, 255, 54, 0.28), transparent 32%),
    var(--navy);
  color: var(--white);
  padding: 64px;
}

.contact-copy > p:not(.eyebrow) {
  max-width: 650px;
  margin: 22px 0;
  color: rgba(255, 255, 255, 0.64);
  font-size: 17px;
  line-height: 1.75;
}

.wechat-id {
  max-width: 520px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.07);
  padding: 13px 14px;
}

.wechat-id span {
  color: rgba(255, 255, 255, 0.52);
  font-size: 13px;
}

.wechat-id strong {
  font-size: 22px;
  letter-spacing: 0.03em;
}

.contact ul {
  display: grid;
  gap: 9px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  color: rgba(255, 255, 255, 0.7);
}

.contact li::before {
  content: "✓";
  margin-right: 9px;
  color: var(--lime);
  font-weight: 950;
}

.wechat-poster {
  display: block;
  width: 100%;
  border: 7px solid rgba(255, 255, 255, 0.96);
  border-radius: 20px;
  background: var(--white);
  box-shadow: 0 28px 60px rgba(0, 0, 0, 0.26);
}

.wechat-poster img {
  width: 100%;
  height: auto;
  display: block;
}

.wechat-poster figcaption {
  border-top: 1px solid #e8ece5;
  background: var(--white);
  color: var(--navy);
  padding: 12px 14px;
  font-size: 12px;
  font-weight: 850;
  line-height: 1.5;
  text-align: center;
}

footer {
  padding: 38px 0 42px;
}

footer p {
  max-width: 920px;
  margin: 0 auto 6px;
  color: #7b8490;
  font-size: 12px;
  line-height: 1.7;
  text-align: center;
}

@media (max-width: 980px) {
  .site-header nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 58px 46px 32px;
  }

  .hero-copy {
    max-width: 720px;
  }

  .hero-visual {
    width: min(620px, 100%);
    min-height: 430px;
    margin-inline: auto;
  }

  .hero-wechat-panel {
    width: min(360px, 100%);
    justify-self: center;
  }

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

  .proof-strip div:nth-child(2) {
    border-right: 0;
  }

  .proof-strip div:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
    padding-bottom: 14px;
  }

  .proof-strip div:nth-child(n + 3) {
    padding-top: 14px;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 15px;
  }

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

  .support-primary {
    grid-row: auto;
  }

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

  .claim-result {
    grid-column: 1 / -1;
    min-height: 390px;
  }

  .feature-summary {
    grid-template-columns: 1fr;
  }

  .feature-summary article {
    display: grid;
    grid-template-columns: 46px 1fr;
    column-gap: 14px;
  }

  .feature-summary article > span {
    grid-row: span 2;
    margin: 0;
  }

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

  .steps-layout {
    grid-template-columns: 1fr;
  }

  .guide-preview {
    max-width: 560px;
    margin-inline: auto;
  }

  .contact {
    grid-template-columns: 1fr 290px;
    gap: 30px;
    padding: 44px;
  }
}

@media (max-width: 680px) {
  .shell,
  .site-header {
    width: calc(100% - 20px);
  }

  .site-header {
    min-height: 66px;
  }

  .header-contact {
    min-height: 40px;
    padding-inline: 14px;
    font-size: 13px;
  }

  .header-wechat {
    padding: 8px 10px;
  }

  .header-wechat span {
    display: none;
  }

  .brand small {
    display: none;
  }

  .hero {
    min-height: 0;
    border-radius: 22px;
    padding: 38px 20px 24px;
  }

  h1 {
    margin-bottom: 18px;
    font-size: clamp(38px, 10.2vw, 42px);
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 320px;
  }

  .hero-wechat-panel {
    width: min(330px, 100%);
  }

  .virtual-card {
    width: min(340px, 94%);
    border-radius: 19px;
    padding: 22px;
  }

  .card-chip {
    width: 42px;
    height: 32px;
    margin: 24px 0 12px;
  }

  .card-number {
    margin-bottom: 15px;
    font-size: 15px;
  }

  .balance-panel {
    right: 0;
    bottom: 6px;
    width: 230px;
  }

  .security-badge {
    top: 28px;
    right: 3px;
    width: 48px;
    height: 48px;
    border-width: 5px;
    font-size: 20px;
  }

  .orbit-one {
    width: 380px;
  }

  .orbit-two {
    width: 300px;
  }

  .proof-strip {
    width: calc(100% - 36px);
    margin-top: -12px;
    padding: 14px 8px;
  }

  .proof-strip div {
    display: block;
    padding-inline: 11px;
  }

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

  .proof-strip strong {
    margin-bottom: 4px;
    font-size: 16px;
  }

  .section {
    padding-top: 78px;
    padding-bottom: 78px;
  }

  .section-heading {
    margin-bottom: 28px;
  }

  .section-heading h2,
  .contact h2 {
    font-size: 34px;
  }

  .support-card {
    padding: 22px;
  }

  .support-top {
    margin-bottom: 28px;
  }

  .support-card h3 {
    font-size: 28px;
  }

  .claim-facts,
  .claim-grid {
    grid-template-columns: 1fr;
  }

  .claim-result {
    grid-column: auto;
    min-height: 0;
  }

  .claim-result .claim-index {
    margin-bottom: 34px;
  }

  .feature-gallery {
    grid-template-columns: 1fr;
  }

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

  .risk {
    grid-template-columns: 1fr;
    gap: 18px;
    border-radius: 20px;
    padding: 26px 22px;
  }

  .risk-icon {
    width: 54px;
    height: 54px;
    border-radius: 17px;
    font-size: 26px;
  }

  .faq-section {
    padding-top: 76px;
  }

  .faq-list {
    grid-template-columns: 1fr;
  }

  .contact {
    grid-template-columns: 1fr;
    border-radius: 22px;
    padding: 36px 22px 22px;
  }

  .wechat-id {
    grid-template-columns: auto 1fr;
  }

  .wechat-poster {
    width: min(340px, 100%);
    margin-inline: auto;
  }

  footer {
    padding-bottom: 42px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}