:root {
  --ink: #111111;
  --muted: #5f615f;
  --soft: #f7f7f4;
  --paper: #ffffff;
  --line: #ddddd5;
  --line-strong: #c9c9bf;
  --mint: #e5f4ee;
  --sage: #c8ddd4;
  --deep: #10221d;
  --accent: #10a37f;
  --accent-dark: #0d7f68;
  --amber: #8a6b2f;
  --shadow: 0 14px 34px rgba(0, 0, 0, 0.06);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--soft);
  font-family:
    "Inter",
    "PingFang SC",
    "Microsoft YaHei",
    "Noto Sans CJK SC",
    Arial,
    sans-serif;
  line-height: 1.55;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid rgba(16, 163, 127, 0.24);
  outline-offset: 3px;
}

.container {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  min-height: 68px;
  padding: 0 34px;
  border-bottom: 1px solid rgba(221, 221, 213, 0.86);
  background: rgba(247, 247, 244, 0.92);
  backdrop-filter: blur(18px);
}

.brand,
.header-cta,
.btn,
.plan-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.brand {
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  white-space: nowrap;
}

.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  color: #111111;
  background: transparent;
}

.brand-icon {
  width: 34px;
  height: 34px;
  fill: none;
  stroke: currentColor;
  stroke-width: 14;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  color: var(--muted);
  font-size: 15px;
}

.site-nav a {
  padding: 9px 12px;
  border-radius: 6px;
}

.site-nav a:hover {
  color: var(--ink);
  background: #ecece6;
}

.header-cta {
  gap: 8px;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid #111111;
  border-radius: 6px;
  color: #ffffff;
  background: #111111;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.header-cta:hover,
.btn-primary:hover,
.plan-action-strong:hover {
  background: #2a2a2a;
}

.header-cta svg,
.btn svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero {
  position: relative;
  min-height: 680px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(229, 244, 238, 0.92) 0%, rgba(247, 247, 244, 0.98) 36%, #ffffff 100%);
  border-bottom: 1px solid var(--line);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      90deg,
      rgba(17, 17, 17, 0.028) 0,
      rgba(17, 17, 17, 0.028) 1px,
      transparent 1px,
      transparent 112px
    ),
    linear-gradient(
      115deg,
      transparent 0%,
      transparent 58%,
      rgba(16, 163, 127, 0.08) 58%,
      rgba(16, 163, 127, 0.08) 76%,
      transparent 76%
    );
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 470px);
  grid-template-areas:
    "copy contact"
    "prices contact"
    "actions contact"
    "note contact";
  column-gap: 46px;
  row-gap: 18px;
  align-items: start;
  padding: 96px 0 82px;
}

.hero-content {
  grid-area: copy;
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.eyebrow-light {
  color: #8fe8ce;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: 76px;
  line-height: 1.02;
  letter-spacing: 0;
  font-weight: 650;
}

.hero-copy {
  max-width: 680px;
  margin: 24px 0 0;
  color: #333431;
  font-size: 21px;
}

.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 22px;
}

.trust-badges span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(16, 163, 127, 0.2);
  border-radius: 999px;
  color: #0c5f4d;
  background: rgba(234, 248, 243, 0.88);
  font-size: 14px;
  font-weight: 700;
}

.hero-prices {
  grid-area: prices;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  max-width: 740px;
  margin: 4px 0 0;
}

.hero-prices div {
  position: relative;
  overflow: hidden;
  min-height: 92px;
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 10px 26px rgba(16, 34, 29, 0.06);
}

.hero-prices div::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: var(--accent);
}

.hero-prices span,
.official-price,
.plan-kicker,
.contact-detail span {
  display: block;
  color: var(--muted);
  font-size: 14px;
}

.hero-prices strong {
  display: block;
  margin-top: 4px;
  color: var(--ink);
  font-size: 28px;
  line-height: 1.15;
  font-weight: 750;
}

.hero-actions {
  grid-area: actions;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

.btn {
  gap: 9px;
  min-height: 48px;
  padding: 0 19px;
  border-radius: 6px;
  font-weight: 700;
}

.btn-primary {
  color: #ffffff;
  background: #111111;
}

.btn-secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line-strong);
}

.btn-secondary:hover {
  background: #ffffff;
}

.hero-note {
  grid-area: note;
  max-width: 650px;
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.top-contact-card {
  grid-area: contact;
  position: relative;
  display: grid;
  grid-template-columns: 162px minmax(0, 1fr);
  gap: 16px 20px;
  align-items: start;
  align-self: center;
  padding: 22px;
  border: 1px solid rgba(17, 17, 17, 0.1);
  border-radius: 10px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 22px 54px rgba(16, 34, 29, 0.12);
  backdrop-filter: blur(18px);
}

.top-contact-card::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(16, 163, 127, 0.12);
  border-radius: 8px;
  pointer-events: none;
}

.contact-status {
  grid-column: 1 / -1;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 0;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 700;
}

.contact-status span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #47e0b5;
  box-shadow: 0 0 0 5px rgba(71, 224, 181, 0.15);
}

.trade-note {
  grid-column: 1 / -1;
  padding: 11px 13px;
  border: 1px solid rgba(16, 163, 127, 0.2);
  border-radius: 8px;
  color: #0c5f4d;
  background: #eaf8f3;
  font-size: 14px;
  font-weight: 700;
}

.top-contact-card .qr-card {
  width: 162px;
  aspect-ratio: 1;
  align-self: start;
  margin: 0;
  border: 1px solid var(--line);
  box-shadow: 0 12px 24px rgba(16, 34, 29, 0.08);
}

.top-contact-card .contact-detail strong {
  color: var(--ink);
}

.top-contact-card .contact-detail p {
  color: var(--muted);
}

.guarantee-note {
  grid-column: 1 / -1;
  padding: 12px 14px;
  border: 1px solid rgba(16, 163, 127, 0.22);
  border-radius: 8px;
  color: #0c5f4d;
  background: #eaf8f3;
  font-size: 14px;
  font-weight: 650;
}

.service-strip {
  padding: 0;
  color: #ffffff;
  background: #111111;
}

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

.strip-grid div {
  min-height: 132px;
  padding: 26px 28px;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}

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

.strip-grid span {
  display: block;
  color: #8fe8ce;
  font-size: 13px;
  font-weight: 800;
}

.strip-grid strong {
  display: block;
  margin-top: 10px;
  font-size: 19px;
  font-weight: 650;
}

.strip-grid p {
  margin: 7px 0 0;
  color: #cfd4d1;
}

.section {
  padding: 92px 0;
  background: var(--paper);
}

.section-muted {
  background: var(--soft);
}

.section-head {
  max-width: 760px;
  margin-bottom: 36px;
}

.section-head-inline {
  max-width: none;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
}

.section-head h2 {
  margin: 0;
  font-size: 42px;
  line-height: 1.15;
  letter-spacing: 0;
  font-weight: 620;
}

.section-head p:not(.eyebrow) {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: stretch;
}

.plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.plan-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 4px;
  background: var(--mint);
}

.plan-card-featured {
  border-color: #111111;
  box-shadow: var(--shadow);
}

.plan-card-featured::before {
  background: var(--accent);
}

.badge {
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 5px 10px;
  border-radius: 999px;
  color: #063f33;
  background: #d9f4eb;
  font-size: 13px;
  font-weight: 700;
}

.plan-top {
  padding-bottom: 23px;
  border-bottom: 1px solid var(--line);
}

.plan-kicker {
  margin: 0 0 8px;
}

.plan-card h3 {
  margin: 0;
  font-size: 34px;
  line-height: 1.1;
  font-weight: 650;
}

.plan-price {
  margin: 18px 0 4px;
  color: var(--ink);
  font-size: 58px;
  line-height: 1;
  font-weight: 720;
}

.plan-price span {
  font-size: 34px;
}

.plan-price small {
  color: var(--muted);
  font-size: 18px;
  font-weight: 600;
}

.feature-list {
  flex: 1;
  padding: 0;
  margin: 24px 0;
  list-style: none;
}

.feature-list li {
  position: relative;
  min-height: 28px;
  padding-left: 28px;
  margin: 10px 0;
  color: #2f302d;
  font-size: 16px;
}

.feature-list li::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 2px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.plan-action {
  min-height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--ink);
  background: #ffffff;
  font-weight: 700;
}

.plan-action:hover {
  border-color: #111111;
}

.plan-action-strong {
  color: #ffffff;
  background: #111111;
  border-color: #111111;
}

.comparison-shell {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.comparison-table {
  width: 100%;
  min-width: 900px;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th,
.comparison-table td {
  padding: 22px 24px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.comparison-table th {
  color: #3a3b37;
  background: #f2f2ee;
  font-size: 15px;
  font-weight: 700;
  white-space: nowrap;
}

.comparison-table tr:last-child td {
  border-bottom: 0;
}

.comparison-table td:first-child {
  min-width: 160px;
  font-size: 22px;
  font-weight: 700;
  white-space: nowrap;
}

.comparison-table td:nth-child(2),
.comparison-table td:nth-child(3) {
  white-space: nowrap;
}

.table-price {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  white-space: nowrap;
}

.comparison-table td:nth-child(2) strong {
  color: var(--ink);
  font-size: 30px;
  font-weight: 720;
}

.table-icon {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-right: 12px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--accent-dark);
  background: #eef8f4;
  font-size: 13px;
  font-weight: 800;
  vertical-align: middle;
}

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

.process-step {
  position: relative;
  overflow: hidden;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.process-step::after {
  content: "";
  position: absolute;
  right: -34px;
  bottom: -34px;
  width: 96px;
  height: 96px;
  border: 1px solid var(--sage);
  border-radius: 50%;
}

.process-step span {
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 800;
}

.process-step h3 {
  margin: 12px 0 8px;
  font-size: 22px;
  font-weight: 650;
}

.process-step p {
  margin: 0;
  color: var(--muted);
}

.guarantee-banner {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  margin-top: 18px;
  padding: 20px 24px;
  border: 1px solid rgba(16, 163, 127, 0.28);
  border-radius: 8px;
  background: #eaf8f3;
}

.guarantee-banner span {
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 800;
}

.guarantee-banner strong {
  color: #0f332a;
  font-size: 17px;
  font-weight: 650;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

summary {
  cursor: pointer;
  padding: 20px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 650;
}

details p {
  margin: 0;
  padding: 0 20px 20px;
  color: var(--muted);
}

.qr-card {
  padding: 10px;
  border-radius: 8px;
  background: #ffffff;
}

.qr-card img {
  width: 100%;
  border-radius: 4px;
}

.contact-detail span {
  color: var(--accent-dark);
}

.contact-detail strong {
  display: block;
  margin-top: 8px;
  font-size: 28px;
  line-height: 1.25;
  font-weight: 650;
}

.contact-detail p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

.contact-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 16px;
}

.mini-action {
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--ink);
  background: #ffffff;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
}

.mini-action:hover {
  border-color: var(--accent-dark);
}

.mini-action-dark {
  color: #ffffff;
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.mini-action-dark:hover {
  background: #0b6f5a;
}

#copy-status {
  display: block;
  min-height: 0;
  margin-top: 10px;
  color: var(--accent-dark);
  font-size: 13px;
}

#copy-status:empty {
  display: none;
}

.site-footer {
  padding: 24px 0;
  color: #6a6b66;
  background: #ffffff;
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  font-size: 14px;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 980px) {
  .site-header {
    padding: 0 20px;
  }

  .site-nav {
    display: none;
  }

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

  .hero-inner {
    grid-template-columns: 1fr;
    grid-template-areas:
      "copy"
      "contact"
      "prices"
      "actions"
      "note";
    row-gap: 22px;
    padding: 64px 0;
  }

  .hero h1 {
    font-size: 54px;
  }

  .hero-copy {
    font-size: 19px;
  }

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

  .top-contact-card {
    width: 100%;
    max-width: 620px;
  }

  .section-head-inline {
    display: block;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 28px, 1180px);
  }

  .site-header {
    min-height: 64px;
    padding: 0 14px;
    gap: 10px;
  }

  .brand {
    font-size: 15px;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
  }

  .brand-icon {
    width: 29px;
    height: 29px;
  }

  .header-cta {
    min-height: 36px;
    padding: 0 10px;
    font-size: 14px;
  }

  .header-cta svg {
    display: none;
  }

  .hero {
    min-height: calc(100svh - 78px);
  }

  .hero-inner {
    padding: 42px 0 52px;
  }

  .top-contact-card {
    padding: 16px;
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 12px;
  }

  .top-contact-card .qr-card {
    width: 88px;
    padding: 8px;
  }

  .contact-status {
    margin-bottom: 0;
    font-size: 15px;
  }

  .trade-note {
    padding: 10px 12px;
    font-size: 14px;
    line-height: 1.5;
  }

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

  .strip-grid div {
    min-height: auto;
    padding: 22px 0;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .strip-grid div:last-child {
    border-bottom: 0;
  }

  .hero h1 {
    font-size: 40px;
  }

  .hero-copy {
    font-size: 17px;
  }

  .hero-prices {
    gap: 10px;
    grid-template-columns: 1fr;
  }

  .hero-prices div {
    min-height: 76px;
    padding: 13px;
  }

  .hero-prices strong {
    font-size: 23px;
  }

  .hero-actions {
    display: grid;
  }

  .contact-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 12px;
  }

  .guarantee-banner {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 18px;
  }

  .btn {
    width: 100%;
  }

  .mini-action {
    min-height: 42px;
    padding: 0 10px;
    font-size: 14px;
  }

  .section {
    padding: 66px 0;
  }

  .section-head h2 {
    font-size: 30px;
  }

  .section-head p:not(.eyebrow) {
    font-size: 16px;
  }

  .plan-card {
    padding: 22px;
  }

  .plan-card h3 {
    font-size: 30px;
  }

  .plan-price {
    font-size: 48px;
  }

  .badge {
    border-radius: 6px;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 18px;
  }

  .process-step {
    padding: 20px;
  }

  .contact-detail strong {
    font-size: 24px;
    margin-top: 4px;
  }

  .contact-detail p {
    font-size: 14px;
    line-height: 1.5;
    margin-top: 8px;
  }

  .guarantee-note {
    padding: 12px;
    font-size: 14px;
    line-height: 1.55;
  }

  .footer-inner {
    display: block;
  }

  .footer-inner p + p {
    margin-top: 8px;
  }
}