:root {
  --bg: #08101d;
  --bg-soft: #0d1424;
  --card: #17233b;
  --card-strong: #10192d;
  --line: rgba(72, 95, 140, 0.62);
  --text: #f8fafc;
  --muted: #9ca9c3;
  --gold: #fbbf24;
  --gold-strong: #fbbf24;
  --cyan: #3fd3ff;
  --cyan-soft: rgba(63, 211, 255, 0.1);
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.24);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 16px;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: linear-gradient(180deg, #08101d 0%, #0b1220 100%);
}

body.modal-open {
  overflow: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 14% 10%, rgba(35, 208, 255, 0.08), transparent 22%),
    radial-gradient(circle at 86% 22%, rgba(251, 191, 36, 0.08), transparent 18%);
}

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

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

.page-shell {
  position: relative;
  overflow: hidden;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 28px;
  backdrop-filter: blur(10px);
  background: rgba(9, 15, 28, 0.88);
  border-bottom: 1px solid rgba(72, 95, 140, 0.42);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  color: #f8fafc;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: linear-gradient(135deg, rgba(27, 224, 255, 0.2), rgba(46, 183, 255, 0.14));
  border: 1px solid rgba(63, 211, 255, 0.32);
  box-shadow: 0 14px 28px rgba(23, 208, 255, 0.12);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

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

.brand-text small {
  color: var(--muted);
  font-size: 0.85rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-size: 0.95rem;
}

.nav a {
  color: #c3cde0;
}

.nav a:hover,
.nav-cta:hover,
.button:hover {
  transform: translateY(-1px);
}

.nav-cta,
.button {
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.nav-cta {
  padding: 12px 18px;
  border-radius: 999px;
  color: #ffffff;
  font-weight: 700;
  background: linear-gradient(135deg, #19d3ff, #8ecf54 92%);
  box-shadow: 0 14px 28px rgba(25, 211, 255, 0.16);
}

main {
  display: grid;
  gap: 24px;
  padding: 24px 0 48px;
}

.section {
  width: min(var(--max-width), calc(100% - 40px));
  margin: 0 auto;
  padding: 56px 30px;
  border-radius: 34px;
  border: 1px solid rgba(72, 95, 140, 0.48);
  background: linear-gradient(180deg, #0d1424, #101829 100%);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.14fr) minmax(420px, 0.86fr);
  gap: 40px;
  align-items: start;
  min-height: auto;
  padding-top: 28px;
}

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 22px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(50, 206, 255, 0.18);
  background: rgba(17, 29, 53, 0.96);
  color: #3fd3ff;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.82rem;
  font-weight: 700;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, #1be0ff, #2eb7ff);
  box-shadow: 0 0 0 6px rgba(43, 199, 255, 0.08);
}

.hero h1,
.section-head h2,
.contact h2 {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.hero h1 {
  display: grid;
  gap: 6px;
  max-width: 820px;
  text-wrap: balance;
}

.hero-title-line {
  display: block;
}

.hero-title-kicker {
  font-size: clamp(1.7rem, 2.8vw, 2.35rem);
  line-height: 1;
  letter-spacing: -0.03em;
  font-weight: 720;
  color: #c4cee1;
}

.hero-title-main {
  font-size: clamp(3.25rem, 5.6vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
  font-weight: 800;
}

.hero-title-sub {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-top: 10px;
  padding: 10px 18px;
  border-radius: 18px;
  background: rgba(17, 29, 53, 0.96);
  border: 1px solid rgba(50, 206, 255, 0.18);
  color: #3fd3ff;
  font-size: clamp(1.2rem, 2vw, 1.65rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.hero-text,
.section-head p,
.feature-card p,
.model-card p,
.price-card p,
.service-card p,
.contact-copy p,
.faq p,
.workflow-note p {
  color: var(--muted);
  line-height: 1.8;
}

.hero-text {
  max-width: 710px;
  margin: 22px 0 0;
  font-size: 1.08rem;
  line-height: 1.78;
}

.hero-points,
.contact-points {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.hero-points span,
.contact-points span {
  padding: 9px 14px;
  border-radius: 999px;
  color: #d7deea;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(88, 105, 146, 0.68);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 26px;
}

.hero-notice {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 14px;
  color: #9ca9c3;
  font-size: 0.95rem;
}

.hero-notice span {
  position: relative;
  padding-left: 16px;
}

.hero-notice span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #2ed5ff;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
}

.button-primary {
  color: #ffffff;
  background: linear-gradient(135deg, #19d3ff, #8ecf54 92%);
  box-shadow: 0 16px 30px rgba(25, 211, 255, 0.16);
}

.button-secondary {
  color: #f8fafc;
  background: transparent;
  border: 1px solid rgba(88, 105, 146, 0.68);
  box-shadow: none;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 22px;
}

.hero-stats article,
.feature-card,
.model-card,
.price-card,
.service-card,
.workflow-card,
.contact,
.faq-list details {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(62, 82, 122, 0.9);
  background: var(--card);
  box-shadow: var(--shadow);
}

.hero-stats article {
  padding: 20px 20px 18px;
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(17, 29, 53, 0.98), rgba(18, 28, 49, 0.98)),
    #17233b;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.18);
}

.hero-stats strong {
  display: block;
  margin-bottom: 8px;
  color: #f8fafc;
  font-size: 1.8rem;
  line-height: 1;
}

.hero-stats span {
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-visual {
  position: relative;
}

.hero-panel {
  position: relative;
  margin-left: auto;
  padding: 28px;
  border-radius: 34px;
  background:
    linear-gradient(180deg, rgba(17, 29, 53, 0.98), rgba(18, 28, 49, 0.98)),
    #17233b;
  border: 1px solid rgba(62, 82, 122, 0.9);
  box-shadow:
    0 26px 60px rgba(0, 0, 0, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.02);
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: 18px 18px auto auto;
  width: 180px;
  height: 180px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(44, 203, 255, 0.1), transparent 70%);
  filter: blur(12px);
  pointer-events: none;
}

.hero-panel-label {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(17, 29, 53, 0.96);
  border: 1px solid rgba(50, 206, 255, 0.18);
  color: #3fd3ff;
  font-size: 0.82rem;
  font-weight: 700;
  box-shadow: 0 8px 20px rgba(249, 115, 22, 0.08);
}

.hero-panel-head h3 {
  margin: 14px 0 10px;
  font-size: 2rem;
  line-height: 1.1;
  letter-spacing: -0.03em;
  max-width: 420px;
}

.hero-panel-head p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
  max-width: 500px;
  font-size: 0.98rem;
}

.hero-panel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.hero-panel-grid-compact {
  margin-top: 16px;
}

.hero-highlight-card {
  margin-top: 22px;
  padding: 20px 20px 18px;
  border-radius: 24px;
  border: 1px solid rgba(62, 82, 122, 0.9);
  background: linear-gradient(180deg, rgba(17, 29, 53, 0.98), rgba(18, 28, 49, 0.98));
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.18);
}

.hero-highlight-card strong {
  display: block;
  margin-top: 2px;
  color: #f8fafc;
  font-size: 1.5rem;
  line-height: 1.45;
}

.hero-highlight-card p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.72;
  font-size: 1rem;
}

.hero-info-card {
  padding: 16px 16px 14px;
  border-radius: 22px;
  border: 1px solid rgba(62, 82, 122, 0.9);
  background: linear-gradient(180deg, rgba(17, 29, 53, 0.98), rgba(18, 28, 49, 0.98));
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.14);
}

.hero-info-card-primary {
  background: linear-gradient(180deg, rgba(17, 29, 53, 0.98), rgba(18, 28, 49, 0.98));
  border-color: rgba(63, 211, 255, 0.2);
  box-shadow: 0 18px 34px rgba(25, 211, 255, 0.08);
}

.hero-info-title {
  display: block;
  margin-bottom: 12px;
  color: #3fd3ff;
  font-size: 0.88rem;
  font-weight: 700;
}

.hero-info-card strong {
  display: block;
  color: #f8fafc;
  font-size: 1rem;
  line-height: 1.5;
}

.hero-info-card p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.65;
  font-size: 0.92rem;
}

.hero-price-strip {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(62, 82, 122, 0.9);
  background: rgba(255, 255, 255, 0.03);
}

.price-strip-label {
  color: #3fd3ff;
  font-size: 0.88rem;
  font-weight: 700;
}

.hero-price-strip strong {
  color: #f8fafc;
  font-size: 1.45rem;
  line-height: 1;
}

.hero-price-strip small {
  margin-left: auto;
  color: #8f9ab6;
  font-size: 0.92rem;
  text-decoration: line-through;
}

.hero-panel-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(72, 95, 140, 0.42);
}

.hero-panel-tip {
  color: #6b7280;
  font-size: 0.95rem;
  font-weight: 600;
}

.qr-modal {
  position: absolute;
  inset: 0;
  z-index: 10;
}

.qr-modal.hidden {
  display: none;
}

.qr-modal-backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background: rgba(4, 8, 17, 0.58);
  border-radius: 28px;
}

.qr-modal-card {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(420px, calc(100% - 36px));
  padding: 22px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(17, 29, 53, 0.98), rgba(18, 28, 49, 0.98));
  border: 1px solid rgba(62, 82, 122, 0.9);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.24);
  transform: translate(-50%, -50%);
}

.qr-modal-card h3 {
  margin: 8px 0 18px;
  font-size: 1.4rem;
  line-height: 1.4;
}

.qr-modal-card img {
  width: 100%;
  border-radius: 18px;
  border: 1px solid rgba(62, 82, 122, 0.9);
}

.qr-close {
  position: absolute;
  right: 12px;
  top: 12px;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: #f8fafc;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}

.trust-strip {
  width: min(var(--max-width), calc(100% - 40px));
  margin: 8px auto 0;
  padding: 18px 22px;
  border: 1px solid rgba(72, 95, 140, 0.48);
  border-radius: 22px;
  background: linear-gradient(180deg, #0d1424, #101829);
  color: #d3dcec;
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.16);
  text-align: center;
  font-size: 1rem;
}

.section-divider {
  display: none;
}

.section-grid {
  display: grid;
  gap: 28px;
}

#features.section-grid {
  gap: 24px;
  padding-top: 72px;
  padding-bottom: 56px;
  min-height: calc(100vh - 72px);
  align-content: center;
}

#features .section-head {
  max-width: 980px;
}

#features .section-head h2 {
  font-size: clamp(2.1rem, 3.1vw, 2.9rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
}

#features .section-head p {
  max-width: 760px;
  margin-top: 18px;
  margin-bottom: 0;
  font-size: 1.02rem;
  line-height: 1.75;
}

.section-head {
  max-width: 760px;
  position: relative;
  padding-left: 0;
  margin: 0 auto;
  text-align: center;
}

.section-head::before {
  display: none;
}

.section-head h2,
.contact h2 {
  font-size: clamp(2rem, 3.5vw, 3rem);
}

.section-head p {
  margin-left: auto;
  margin-right: auto;
}

.feature-grid,
.model-grid,
.pricing-grid {
  display: grid;
  gap: 18px;
}

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

#features .feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

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

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

.pricing .pricing-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  align-items: stretch;
}

.feature-card,
.model-card,
.price-card,
.service-card,
.workflow-card {
  border-radius: 24px;
  padding: 26px;
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.05);
}

#features .feature-card {
  padding: 22px 22px 20px;
  border-radius: 22px;
  box-shadow: 0 14px 28px rgba(15, 23, 42, 0.045);
}

.feature-card::after,
.model-card::after,
.price-card::after,
.service-card::after,
.workflow-card::after,
.contact::after,
.faq-list details::after {
  display: none;
}

.feature-index,
.card-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  color: #f8fafc;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(88, 105, 146, 0.68);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
}

.feature-card h3,
.model-card h3,
.price-card h3,
.service-card h3,
.workflow-card h3 {
  margin: 18px 0 12px;
  font-size: 1.26rem;
}

#features .feature-index {
  min-height: 30px;
  padding: 0 10px;
  font-size: 0.76rem;
}

#features .feature-card h3 {
  margin: 16px 0 12px;
  font-size: 1.14rem;
  line-height: 1.35;
}

#features .feature-card p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.72;
}

#models.section-grid {
  gap: 24px;
  padding-top: 72px;
  padding-bottom: 56px;
  min-height: calc(100vh - 72px);
  align-content: center;
}

#models .section-head {
  max-width: 920px;
}

#models .section-head h2 {
  font-size: clamp(2.1rem, 3.1vw, 2.9rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
}

#models .section-head p {
  max-width: 760px;
  margin-top: 18px;
  margin-bottom: 0;
  font-size: 1.02rem;
  line-height: 1.75;
}

#models .model-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

#models .model-card {
  min-height: 172px;
  padding: 22px 22px 20px;
  border-radius: 22px;
  box-shadow: 0 14px 28px rgba(15, 23, 42, 0.045);
}

#models .model-card h3 {
  margin: 8px 0 12px;
  font-size: 1.14rem;
  line-height: 1.35;
}

#models .model-card p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.72;
}

.model-card {
  min-height: 176px;
}

.pricing {
  position: relative;
  background: linear-gradient(180deg, #0d1424, #101829 100%);
  border-radius: 34px;
  width: min(var(--max-width), calc(100% - 40px));
  margin-top: 24px;
  padding: 42px 30px;
  overflow: hidden;
}

.pricing::before {
  content: "";
  position: absolute;
  inset: 0;
  height: auto;
  z-index: -1;
  background:
    radial-gradient(circle at top center, rgba(44, 203, 255, 0.1), transparent 24%),
    radial-gradient(circle at bottom right, rgba(255, 188, 70, 0.12), transparent 22%);
  filter: none;
}

.pricing .section-head {
  max-width: 920px;
}

.pricing .section-head h2 {
  font-size: clamp(2.2rem, 4vw, 3.35rem);
  line-height: 1.15;
}

.pricing .eyebrow {
  background: rgba(17, 29, 53, 0.96);
  border-color: rgba(50, 206, 255, 0.18);
  color: #3fd3ff;
}

.pricing .eyebrow::before {
  background: linear-gradient(135deg, #1be0ff, #2eb7ff);
  box-shadow: 0 0 0 6px rgba(43, 199, 255, 0.08);
}

.pricing .section-head h2,
.pricing .section-head p {
  color: #f8fafc;
}

.pricing .section-head p {
  color: #9ca9c3;
  max-width: 840px;
}

.price-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 22px 22px 20px;
  border-radius: 28px;
  border: 1px solid rgba(62, 82, 122, 0.9);
  background: linear-gradient(180deg, rgba(17, 29, 53, 0.98), rgba(18, 28, 49, 0.98));
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.22);
}

.featured {
  position: relative;
  padding-top: 58px;
  border-color: rgba(255, 190, 76, 0.72);
  background: linear-gradient(180deg, rgba(21, 31, 54, 0.98), rgba(17, 24, 42, 0.98));
  box-shadow: 0 20px 48px rgba(255, 188, 70, 0.14);
}

.featured::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  min-height: 30px;
  padding: 0 16px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #fbbf24;
  color: #111827;
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  content: "最划算";
}

.price-row {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  margin: 12px 0 8px;
}

.price-row strong {
  color: #f8fafc;
  font-size: 2.8rem;
  line-height: 1;
}

.old-price {
  color: #a4a8b6;
  text-decoration: line-through;
}

.hint-price {
  color: var(--cyan);
  font-weight: 700;
  font-size: 1.15rem;
}

.price-card h3 {
  color: #f8fafc;
  font-size: 1.7rem;
  line-height: 1.18;
  margin-top: 6px;
  margin-bottom: 0;
}

.price-card p,
.price-card li {
  color: #9ca9c3;
  line-height: 1.65;
}

.price-note {
  color: #98a7cb;
  font-size: 0.98rem;
  font-weight: 600;
}

.price-note-accent {
  color: #2ed5ff;
}

.price-note-gold {
  color: #fbbf24;
}

.price-subnote {
  color: #98a7cb;
  font-size: 0.95rem;
  font-weight: 600;
}

.price-subnote-strong {
  color: #fbbf24;
}

.price-unit {
  color: #8f9ab6;
  font-size: 0.92rem;
  font-weight: 700;
  padding-bottom: 4px;
}

.price-card ul,
.workflow-card ol {
  margin: 14px 0 0;
  padding-left: 20px;
  color: #c4cee1;
  line-height: 1.7;
}

.price-card .button {
  margin-top: auto;
  min-height: 50px;
}

.pricing .card-tag {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(88, 105, 146, 0.68);
  margin-bottom: 10px;
}

.featured .card-tag {
  margin-top: 6px;
}

.pricing .button-primary {
  background: linear-gradient(135deg, #19d3ff, #8ecf54 92%);
  color: #ffffff;
  box-shadow: 0 16px 30px rgba(25, 211, 255, 0.16);
}

.pricing .button-secondary {
  background: transparent;
  color: #f8fafc;
  border-color: rgba(88, 105, 146, 0.68);
  box-shadow: none;
}

.recharge-layout,
.contact {
  display: grid;
  grid-template-columns: 1.06fr 0.94fr;
  gap: 22px;
}

.recharge-cards {
  display: grid;
  gap: 18px;
}

.service-card {
  min-height: 144px;
}

.workflow-note {
  margin-top: 22px;
  padding: 18px 18px 4px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(63, 211, 255, 0.18);
}

.workflow-note strong {
  color: #3fd3ff;
}

.contact {
  align-items: center;
  padding: 34px;
  border-radius: 30px;
  background: linear-gradient(180deg, #0d1424, #101829 55%);
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.2);
}

.contact-poster img {
  width: min(360px, 100%);
  margin-left: auto;
  border-radius: 18px;
  border: 1px solid rgba(62, 82, 122, 0.9);
}

.contact-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid rgba(72, 95, 140, 0.42);
}

.contact-actions .button {
  min-width: 232px;
}

.contact-action-tip {
  color: #9ca9c3;
  font-size: 0.96rem;
  line-height: 1.6;
}

.faq-list {
  display: grid;
  gap: 16px;
  max-width: 1120px;
  margin: 0 auto;
}

.faq-list details {
  padding: 24px 26px;
  border-radius: 22px;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.16);
}

.faq-list summary {
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 1.08rem;
  color: #f8fafc;
}

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

.faq-list p {
  margin: 14px 0 0;
  color: #9ca9c3;
  font-size: 1rem;
  line-height: 1.9;
}

.footer {
  width: min(var(--max-width), calc(100% - 40px));
  margin: 0 auto;
  padding: 0 0 42px;
  color: #8a98b2;
  text-align: center;
}

@media (max-width: 1080px) {
  .topbar {
    gap: 16px;
    padding: 14px 18px;
    flex-wrap: wrap;
  }

  .brand {
    flex: 1;
    min-width: 0;
  }

  .brand-text strong {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  main {
    gap: 18px;
    padding: 18px 0 36px;
  }

  .nav {
    display: none;
  }

  .hero,
  .recharge-layout,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 36px;
  }

  .hero-visual {
    order: -1;
  }

  .hero-panel {
    margin: 0 auto;
  }

  .hero-copy,
  .hero-visual,
  .hero-panel {
    width: 100%;
    max-width: 100%;
  }

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

  #features.section-grid {
    min-height: auto;
    align-content: start;
  }

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

  #models.section-grid {
    min-height: auto;
    align-content: start;
  }

  .feature-card,
  .model-card,
  .price-card,
  .service-card,
  .workflow-card,
  .contact,
  .faq-list details {
    min-height: auto;
  }

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

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

@media (max-width: 1360px) {
  .hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(380px, 0.92fr);
    gap: 30px;
  }

  .hero-title-kicker {
    font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  }

  .hero-title-main {
    font-size: clamp(3rem, 4.9vw, 4.35rem);
  }

  .hero-title-sub {
    font-size: clamp(1.08rem, 1.8vw, 1.45rem);
  }
}

@media (max-width: 1080px) {
  .hero,
  .recharge-layout,
  .contact {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .hero,
  .recharge-layout,
  .contact {
    grid-template-columns: 1fr;
  }

  .topbar {
    gap: 12px;
    padding: 16px 18px;
  }

  .brand-text small,
  .nav-cta {
    display: none;
  }

  .brand {
    flex: 1;
    min-width: 0;
    gap: 10px;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    flex: 0 0 auto;
  }

  .brand-text strong {
    display: block;
    min-width: 0;
    font-size: 0.96rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .section {
    width: min(var(--max-width), calc(100% - 24px));
    padding: 48px 18px;
  }

  .section-head h2,
  .contact h2 {
    font-size: clamp(1.8rem, 8vw, 2.45rem);
    line-height: 1.16;
  }

  .section-head p {
    font-size: 0.96rem;
    line-height: 1.72;
  }

  .hero {
    gap: 24px;
    padding-top: 8px;
  }

  .hero-visual {
    order: 0;
  }

  .hero-title-kicker {
    font-size: clamp(1.4rem, 6.5vw, 1.85rem);
  }

  .hero-title-main {
    font-size: clamp(2.45rem, 11.5vw, 3.45rem);
  }

  .hero-title-sub {
    margin-top: 10px;
    padding: 8px 14px;
    font-size: clamp(1rem, 4.8vw, 1.28rem);
  }

  .hero-text {
    margin-top: 18px;
    font-size: 0.98rem;
    line-height: 1.72;
  }

  .hero-copy,
  .hero-visual {
    min-width: 0;
  }

  .hero-points {
    gap: 10px;
    margin-top: 18px;
  }

  .hero-points span {
    padding: 8px 12px;
    font-size: 0.92rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

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

  .feature-grid,
  .model-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 18px;
  }

  .hero-stats article {
    padding: 16px 12px 14px;
  }

  .hero-stats strong {
    font-size: 1.45rem;
    margin-bottom: 6px;
  }

  .hero-stats span {
    font-size: 0.8rem;
    line-height: 1.4;
  }

  #features.section-grid {
    padding-top: 40px;
    padding-bottom: 40px;
    gap: 18px;
  }

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

  #models.section-grid {
    padding-top: 40px;
    padding-bottom: 40px;
    gap: 18px;
  }

  #models .model-grid {
    grid-template-columns: 1fr;
  }

  .pricing {
    width: calc(100% - 24px);
    padding: 42px 18px;
    border-radius: 24px;
  }

  .pricing .section-head h2 {
    font-size: clamp(2rem, 8.5vw, 2.8rem);
  }

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

  .hero-notice {
    flex-direction: column;
    gap: 10px;
  }

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

  .hero-panel-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .hero-panel-tip {
    text-align: center;
    font-size: 0.9rem;
  }

  .hero-panel {
    padding: 20px;
    border-radius: 22px;
  }

  .hero-panel-head h3 {
    font-size: 1.58rem;
    max-width: none;
  }

  .hero-panel-head p,
  .hero-highlight-card p,
  .hero-info-card p {
    font-size: 0.92rem;
    line-height: 1.7;
  }

  .hero-highlight-card {
    margin-top: 18px;
    padding: 18px 16px 16px;
  }

  .hero-highlight-card strong {
    font-size: 1.22rem;
  }

  .hero-info-card {
    padding: 14px 14px 12px;
  }

  .hero-info-card strong {
    font-size: 0.98rem;
    line-height: 1.45;
  }

  .hero-price-strip {
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 8px;
    padding: 14px 16px;
  }

  .hero-price-strip strong {
    font-size: 1.2rem;
  }

  .hero-price-strip small {
    margin-left: 0;
  }

  .price-card,
  .feature-card,
  .model-card,
  .service-card,
  .workflow-card {
    padding: 18px 16px;
  }

  #models .model-card,
  #features .feature-card {
    padding: 18px 16px;
    min-height: auto;
  }

  .price-row strong {
    font-size: 2.3rem;
  }

  .price-card h3,
  .service-card h3,
  .workflow-card h3 {
    font-size: 1.35rem;
  }

  .faq-list details {
    padding: 18px 18px;
  }

  .faq-list summary {
    font-size: 1rem;
    line-height: 1.5;
  }

  .faq-list p {
    font-size: 0.95rem;
    line-height: 1.8;
  }

  .hero-stats article,
  .feature-card,
  .model-card,
  .price-card,
  .service-card,
  .workflow-card,
  .faq-list details {
    border-radius: 20px;
  }

  .trust-strip {
    width: calc(100% - 24px);
    border-radius: 16px;
    padding: 18px;
  }

  .trust-strip p {
    margin: 0;
    font-size: 0.92rem;
    line-height: 1.7;
  }

  .contact {
    padding: 24px;
  }

  .contact-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .contact-copy .button,
  .contact-actions .button {
    width: 100%;
    min-width: 0;
  }

  .contact-action-tip {
    text-align: center;
    font-size: 0.9rem;
  }

  .qr-modal-card {
    width: calc(100% - 24px);
    padding: 18px;
  }

  .contact-poster img {
    margin: 0 auto;
    width: min(300px, 100%);
  }
}

@media (max-width: 480px) {
  .hero,
  .recharge-layout,
  .contact {
    grid-template-columns: 1fr;
  }

  main {
    gap: 14px;
    padding: 14px 0 28px;
  }

  .topbar {
    padding: 14px 14px;
  }

  .section {
    width: calc(100% - 20px);
    padding: 40px 14px;
    border-radius: 24px;
  }

  .hero-title-kicker {
    font-size: 1.28rem;
  }

  .hero-title-main {
    font-size: clamp(2.1rem, 12vw, 3rem);
    line-height: 1;
  }

  .hero-title-sub {
    font-size: 0.98rem;
    padding: 8px 12px;
  }

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

  .hero-panel {
    padding: 16px;
  }

  .hero-actions .button,
  .hero-panel-actions .button {
    min-height: 48px;
    padding: 0 18px;
    font-size: 0.96rem;
  }

  .hero-panel-label,
  .eyebrow {
    font-size: 0.76rem;
    letter-spacing: 0.08em;
  }

  .hero-panel-head h3 {
    font-size: 1.42rem;
  }

  .hero-price-strip {
    border-radius: 16px;
  }

  .pricing,
  .trust-strip,
  .footer {
    width: calc(100% - 20px);
  }

  .qr-modal-card h3 {
    font-size: 1.1rem;
    line-height: 1.45;
  }
}