:root {
  --ink: #292621;
  --muted: #6f6962;
  --brand: #292621;
  --brand-soft: #ebe3da;
  --accent: #d97757;
  --accent-soft: #f3d8ca;
  --paper: #f7f3ee;
  --white: #fff;
  --line: #ded6cd;
  --danger-soft: #fff3dc;
  --radius-lg: 28px;
  --radius-md: 20px;
  --shadow: 0 18px 50px rgba(22, 47, 42, 0.1);
  --content: 680px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  left: 12px;
  top: -60px;
  z-index: 100;
  padding: 10px 14px;
  color: white;
  background: var(--brand);
  border-radius: 10px;
}

.skip-link:focus { top: 12px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 68px;
  padding: 12px max(18px, calc((100% - var(--content)) / 2));
  background: rgba(247, 248, 244, 0.91);
  border-bottom: 1px solid rgba(19, 34, 31, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand img { border-radius: 10px; }

.top-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  white-space: nowrap;
  font-size: 13px;
  font-weight: 650;
}

.top-nav a {
  text-decoration: none;
  text-underline-offset: 4px;
}

.nav-button {
  padding: 0;
  color: inherit;
  background: transparent;
  border: 0;
  font: inherit;
  cursor: pointer;
}

.top-nav a:hover,
.top-nav a:focus-visible,
.nav-button:hover,
.nav-button:focus-visible { text-decoration: underline; text-underline-offset: 4px; }

main { overflow: clip; }

.hero,
.section,
.disclosure,
.site-footer {
  width: calc(100% - 36px);
  max-width: var(--content);
  margin-inline: auto;
}

.hero {
  position: relative;
  padding: 56px 0 46px;
  text-align: center;
}

.hero::before,
.hero::after {
  position: absolute;
  z-index: -1;
  content: "";
  border-radius: 999px;
  filter: blur(2px);
}

.hero::before {
  width: 240px;
  height: 240px;
  top: 35px;
  right: -150px;
  background: rgba(233, 243, 107, 0.44);
}

.hero::after {
  width: 190px;
  height: 190px;
  top: 300px;
  left: -150px;
  background: rgba(153, 205, 193, 0.25);
}

.eyebrow,
.section-kicker {
  color: var(--brand);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  background: var(--brand-soft);
  border-radius: 999px;
  letter-spacing: 0.04em;
}

.eyebrow span {
  width: 7px;
  height: 7px;
  background: #3e8d76;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(62, 141, 118, 0.15);
}

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

h1 {
  margin: 22px 0 14px;
  font-size: clamp(40px, 12vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.055em;
}

h1,
.section h2 {
  font-family: Georgia, "Songti SC", "STSong", serif;
  font-weight: 500;
}

h1 em {
  position: relative;
  color: var(--brand);
  font-style: normal;
}

h1 em::after {
  position: absolute;
  z-index: -1;
  right: -4px;
  bottom: -1px;
  left: -4px;
  height: 7px;
  content: "";
  background: var(--accent);
  border-radius: 999px;
}

.hero-copy,
.section-intro {
  color: var(--muted);
  font-size: 15px;
}

.hero-copy {
  max-width: 440px;
  margin: 0 auto;
}

.price-line {
  display: flex;
  align-items: baseline;
  justify-content: center;
  margin: 28px 0 22px;
  color: var(--brand);
}

.price-line .currency { font-size: 22px; font-weight: 800; }
.price-line strong { font-size: 64px; line-height: 1; letter-spacing: -0.06em; }
.price-line .unit { margin-left: 4px; font-weight: 700; }
.price-line small {
  margin-left: 10px;
  padding: 3px 8px;
  color: var(--brand);
  background: var(--accent);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 10px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.metric-grid article {
  min-width: 0;
  padding: 18px 4px;
}

.metric-grid article + article { border-left: 1px solid var(--line); }

.metric-grid strong,
.metric-grid span { display: block; }

.metric-grid strong {
  color: var(--brand);
  font-size: clamp(22px, 7vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.metric-grid strong small { font-size: 11px; letter-spacing: 0; }
.metric-grid span { margin-top: 5px; color: var(--muted); font-size: 11px; }

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 22px;
  color: white;
  background: var(--brand);
  border-radius: 15px;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 10px 28px rgba(41, 38, 33, 0.16);
  transition: transform 160ms ease, background 160ms ease;
}

.primary-button:hover { background: #171512; transform: translateY(-1px); }
.primary-button:focus-visible { outline: 3px solid #d7a08c; outline-offset: 3px; }

.hero-button { width: 100%; margin-top: 18px; }
.handoff-note { margin: 10px 0 0; color: var(--muted); font-size: 11px; }

.query-link {
  display: inline-block;
  margin-top: 12px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 750;
  text-underline-offset: 4px;
}

.section {
  padding: 58px 0;
  border-top: 1px solid var(--line);
}

.section h2 {
  margin: 5px 0 8px;
  font-size: clamp(28px, 8vw, 42px);
  line-height: 1.18;
  letter-spacing: -0.04em;
}

.benefit-list { display: grid; gap: 10px; margin-top: 26px; }

.benefit-card {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 18px;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.benefit-icon {
  display: grid;
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--brand);
  background: var(--accent-soft);
  border-radius: 13px;
  font-size: 14px;
  font-weight: 900;
}

.benefit-card h3 { margin-bottom: 3px; font-size: 16px; }
.benefit-card p { margin-bottom: 0; color: var(--muted); font-size: 13px; }

.terms-card {
  margin-top: 14px;
  background: var(--brand);
  border-radius: var(--radius-md);
  color: white;
  overflow: hidden;
}

.terms-card summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px;
  cursor: pointer;
  font-weight: 800;
  list-style: none;
}

.terms-card summary::-webkit-details-marker { display: none; }
.terms-card summary span { color: var(--accent); font-size: 22px; }
.terms-content { padding: 0 18px 20px; color: #dbe7e3; font-size: 13px; }
.terms-content ul { margin: 0; padding-left: 20px; }
.terms-content li + li { margin-top: 8px; }
.terms-content p { margin: 15px 0 0; color: var(--accent-soft); }

.process-section { padding-bottom: 28px; }
.process-list { margin: 26px 0 0; padding: 0; list-style: none; }

.process-list li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 13px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.process-list li > span { color: #8c9995; font-size: 13px; font-weight: 800; }
.process-list h3 { margin: 0 0 3px; font-size: 17px; }
.process-list p { margin: 0; color: var(--muted); font-size: 13px; }

.contact-section {
  display: grid;
  gap: 18px;
  margin-top: 30px;
  padding: 30px;
  color: white;
  background: var(--brand);
  border: 0;
  border-radius: var(--radius-lg);
}

.contact-section .section-kicker { color: var(--accent); }
.contact-section h2 { margin-bottom: 8px; }
.contact-section p { margin-bottom: 0; color: #cadad5; font-size: 13px; }

.contact-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 15px 17px;
  color: var(--brand);
  background: var(--accent-soft);
  border: 0;
  border-radius: 16px;
  font: inherit;
  text-decoration: none;
  cursor: pointer;
}

.contact-link strong { font-size: 20px; }
.contact-placeholder { font-size: 11px !important; }

.disclosure {
  margin-top: 18px;
  padding: 18px;
  background: #edf0ec;
  border-radius: 18px;
  font-size: 12px;
}

.disclosure p { margin: 4px 0 0; color: var(--muted); }

.site-footer {
  display: flex;
  justify-content: space-between;
  padding: 28px 0 120px;
  color: var(--muted);
  font-size: 11px;
}

.site-footer button {
  padding: 0;
  color: inherit;
  background: transparent;
  border: 0;
  font: inherit;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

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

.contact-dialog {
  width: min(calc(100% - 28px), 420px);
  max-height: min(90vh, 760px);
  padding: 18px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 28px 80px rgba(10, 34, 29, 0.28);
}

.contact-dialog::backdrop {
  background: rgba(7, 20, 18, 0.66);
  backdrop-filter: blur(5px);
}

.dialog-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}

.dialog-head h2 {
  margin: 3px 0 0;
  font-size: 23px;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.dialog-close {
  display: grid;
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  padding: 0;
  place-items: center;
  color: var(--ink);
  background: #e7ebe7;
  border: 0;
  border-radius: 50%;
  font-size: 25px;
  line-height: 1;
  cursor: pointer;
}

.contact-dialog > img {
  display: block;
  width: 100%;
  max-height: 54vh;
  object-fit: contain;
  background: white;
  border-radius: 16px;
}

.phone-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  padding: 13px 15px;
  color: white;
  background: var(--brand);
  border-radius: 15px;
  text-decoration: none;
}

.phone-button span { font-size: 12px; }
.phone-button strong { font-size: 19px; letter-spacing: 0.02em; }
.contact-dialog > p { margin: 10px 0 0; color: var(--muted); font-size: 11px; text-align: center; }

.sticky-cta {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 11px max(16px, calc((100% - var(--content)) / 2));
  padding-bottom: max(11px, env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, 0.95);
  border-top: 1px solid var(--line);
  box-shadow: 0 -12px 35px rgba(19, 34, 31, 0.09);
  backdrop-filter: blur(18px);
}

.sticky-price { display: flex; flex-direction: column; line-height: 1.1; }
.sticky-price strong { color: var(--brand); font-size: 22px; }
.sticky-price span { margin-top: 4px; color: var(--muted); font-size: 10px; }
.sticky-cta .primary-button { flex: 0 0 min(56%, 260px); min-height: 50px; }

.iframe-page { height: 100vh; overflow: hidden; }
.iframe-main { display: flex; flex-direction: column; height: calc(100vh - 68px - 73px); overflow: hidden; }

.iframe-warning {
  padding: 12px max(16px, calc((100% - var(--content)) / 2));
  color: #5a3c00;
  background: var(--danger-soft);
  border-bottom: 1px solid #efd49e;
  font-size: 12px;
}

.iframe-warning p { margin: 2px 0 4px; }
.iframe-warning a { font-weight: 800; text-underline-offset: 3px; }
.official-frame { flex: 1 1 auto; width: 100%; border: 0; background: white; }

@media (min-width: 620px) {
  .hero { padding-top: 72px; }
  .benefit-list { grid-template-columns: repeat(2, 1fr); }
  .benefit-card { min-height: 134px; }
  .contact-section { grid-template-columns: 1fr 220px; align-items: center; }
  .contact-placeholder { grid-column: 1 / -1; }
}

@media (max-width: 380px) {
  .site-header { padding-inline: 14px; }
  .brand span { font-size: 15px; }
  .top-nav { gap: 11px; font-size: 12px; }
  .top-nav > a[href="#package"] { display: none; }
  .hero, .section, .disclosure, .site-footer { width: calc(100% - 28px); }
  .metric-grid { padding: 7px; }
  .metric-grid strong { font-size: 23px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}