:root {
  --paper: #fbf8f1;
  --paper-soft: #f6f0e7;
  --ink: #2b2925;
  --muted: #756f66;
  --faint: #9b9287;
  --line: #e8ddcf;
  --line-strong: #dac9b6;
  --gold: #b99d79;
  --gold-deep: #947657;
  --card: rgba(255, 255, 255, 0.68);
  --shadow: 0 18px 60px rgba(84, 66, 44, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 18%, rgba(214, 193, 165, 0.22), transparent 30%),
    radial-gradient(circle at 80% 0%, rgba(255, 255, 255, 0.9), transparent 34%),
    linear-gradient(180deg, #fffdf9 0%, var(--paper) 44%, #fffaf2 100%);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

.site-header {
  width: min(1180px, calc(100% - 72px));
  margin: 0 auto;
  padding: 34px 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand,
h1,
h2,
.section-title,
.doc-card h2,
.faq-title {
  font-family: "Songti SC", "STSong", "Noto Serif SC", serif;
  font-weight: 400;
  letter-spacing: 0;
}

.brand {
  font-size: 34px;
  line-height: 1;
}

.nav {
  display: flex;
  align-items: center;
  gap: 34px;
  color: #5f5a53;
  font-size: 15px;
}

.nav a {
  position: relative;
  padding: 8px 0;
}

.nav a.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 34px;
  height: 1px;
  background: #2f302e;
  transform: translateX(-50%);
}

.nav-button {
  min-width: 96px;
  padding: 12px 18px !important;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.56);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

.nav-button::after {
  display: none;
}

.page,
.site-footer {
  width: min(1180px, calc(100% - 72px));
  margin: 0 auto;
}

.home-hero {
  padding: 126px 0 84px;
}

.home-hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(50px, 7vw, 78px);
  line-height: 1.15;
}

.hero-text {
  max-width: 650px;
  margin: 34px 0 0;
  color: var(--muted);
  font-size: 22px;
  line-height: 1.8;
}

.hero-actions {
  margin-top: 46px;
  display: flex;
  gap: 28px;
}

.button {
  min-width: 176px;
  height: 62px;
  padding: 0 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--gold-deep);
  border-radius: 10px;
  color: #3d3831;
  font-size: 18px;
  background: rgba(255, 255, 255, 0.42);
}

.button.filled {
  border-color: transparent;
  color: #fff;
  background: linear-gradient(135deg, #d5c1a5, #ad8f69);
  box-shadow: 0 12px 28px rgba(148, 118, 87, 0.18);
}

.statement-card,
.feature-card,
.reason-row,
.soft-cta,
.faq-item,
.contact-card,
.note-card,
.doc-card,
.agreement-band {
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.statement-card {
  border-radius: 18px;
  padding: 68px 64px;
}

.statement-card h2 {
  margin: 0 0 26px;
  font-size: 34px;
  line-height: 1.3;
}

.statement-card p {
  max-width: 850px;
  margin: 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.9;
}

.section {
  margin-top: 76px;
}

.section-title {
  margin: 0 0 34px;
  font-size: 36px;
  line-height: 1.25;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.feature-card {
  min-height: 224px;
  border-radius: 12px;
  padding: 34px 32px;
}

.feature-card h3 {
  margin: 0;
  font-size: 25px;
  font-weight: 500;
}

.feature-card > span {
  display: block;
  width: 52px;
  height: 1px;
  margin: 20px 0 24px;
  background: var(--gold);
}

.feature-card p,
.reason-row p,
.faq-copy p,
.contact-card p,
.note-card p,
.doc-card p {
  color: var(--muted);
  font-size: 16.5px;
  line-height: 1.85;
}

.reason-list {
  display: grid;
  gap: 0;
}

.reason-row {
  display: grid;
  grid-template-columns: 86px 1fr;
  align-items: center;
  min-height: 70px;
  padding: 18px 30px;
  box-shadow: none;
}

.reason-row + .reason-row {
  border-top: 0;
}

.reason-row:first-child {
  border-radius: 12px 12px 0 0;
}

.reason-row:last-child {
  border-radius: 0 0 12px 12px;
}

.reason-row strong {
  font-size: 21px;
  font-weight: 500;
}

.reason-row p {
  margin: 0;
}

.soft-cta {
  margin-top: 80px;
  padding: 58px 40px;
  border-radius: 18px;
  text-align: center;
  background:
    radial-gradient(circle at 50% 0%, rgba(210, 186, 151, 0.24), transparent 55%),
    rgba(255, 255, 255, 0.62);
}

.soft-cta h2 {
  margin: 0 0 30px;
  font-size: 42px;
  line-height: 1.25;
}

.site-footer {
  margin-top: 54px;
  padding: 30px 0 36px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  color: var(--muted);
  font-size: 14px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 22px;
}

.beian {
  margin-left: 14px;
  color: var(--faint);
}

.doc-hero-simple {
  padding: 118px 0 82px;
}

.kicker {
  margin: 0 0 46px;
  color: #a87f6e;
  font-size: 16px;
}

.doc-hero-simple h1 {
  margin: 0;
  font-size: clamp(64px, 10vw, 104px);
  line-height: 1.1;
}

.doc-hero-simple .hero-text {
  margin-top: 42px;
  max-width: 620px;
}

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

.faq-item {
  border-radius: 14px;
  padding: 28px 36px;
  display: grid;
  grid-template-columns: 96px 1fr;
  align-items: center;
  box-shadow: none;
}

.faq-num {
  color: var(--gold-deep);
  font-family: "Songti SC", "STSong", serif;
  font-size: 24px;
  border-right: 1px solid var(--line);
}

.faq-copy h2 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 500;
}

.faq-copy p {
  margin: 0;
}

.contact-card {
  border-radius: 14px;
  padding: 0 28px;
  box-shadow: none;
}

.contact-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 28px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.contact-row:last-child {
  border-bottom: 0;
}

.contact-row strong {
  font-size: 18px;
  font-weight: 500;
}

.contact-row p {
  margin: 0;
  color: var(--gold-deep);
}

.note-card {
  border-radius: 14px;
  padding: 28px 32px;
  box-shadow: none;
}

.note-card p {
  margin: 0;
}

.doc-intro {
  padding: 96px 0 58px;
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 82px;
  align-items: start;
}

.doc-intro h1 {
  margin: 0 0 28px;
  font-size: clamp(62px, 9vw, 92px);
  line-height: 1.1;
}

.doc-meta {
  margin-bottom: 56px;
  display: flex;
  gap: 42px;
  color: var(--muted);
  font-size: 16px;
}

.doc-lead {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 20px;
  line-height: 2;
}

.toc {
  margin-top: 14px;
  padding-left: 42px;
  border-left: 1px solid var(--line-strong);
}

.toc strong {
  display: block;
  margin-bottom: 24px;
  font-size: 20px;
  font-weight: 500;
}

.toc a {
  display: block;
  margin: 0 0 18px;
  color: var(--muted);
}

.doc-stack {
  display: grid;
  gap: 28px;
}

.doc-card {
  border-radius: 16px;
  padding: 42px 50px;
  box-shadow: none;
}

.doc-card h2 {
  margin: 0 0 28px;
  font-size: 36px;
  line-height: 1.25;
}

.doc-card p {
  margin: 0 0 10px;
}

.doc-card p:last-child {
  margin-bottom: 0;
}

.reg-no {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92em;
  word-break: break-all;
}

.privacy-note {
  margin-top: 18px !important;
  padding: 14px 18px;
  border-left: 3px solid var(--gold);
  border-radius: 10px;
  color: var(--muted);
  background: rgba(185, 157, 121, 0.1);
}

.agreement-band {
  margin-top: 36px;
  padding: 28px 36px;
  border-radius: 14px;
  text-align: center;
  color: var(--gold-deep);
  font-size: 20px;
  background: linear-gradient(135deg, rgba(255,255,255,0.72), rgba(229,214,194,0.54));
}

@media (max-width: 900px) {
  .site-header,
  .page,
  .site-footer {
    width: min(100% - 36px, 720px);
  }

  .site-header {
    align-items: flex-start;
    gap: 20px;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    gap: 18px;
    flex-wrap: wrap;
    font-size: 14px;
  }

  .home-hero,
  .doc-hero-simple,
  .doc-intro {
    padding-top: 78px;
  }

  .home-hero h1,
  .doc-hero-simple h1,
  .doc-intro h1 {
    font-size: 50px;
  }

  .hero-text,
  .doc-lead {
    font-size: 18px;
  }

  .hero-actions {
    flex-direction: column;
    gap: 14px;
  }

  .button {
    width: 100%;
  }

  .statement-card,
  .doc-card {
    padding: 34px 24px;
  }

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

  .reason-row,
  .faq-item,
  .contact-row,
  .doc-intro {
    grid-template-columns: 1fr;
  }

  .reason-row {
    gap: 8px;
  }

  .faq-num {
    border-right: 0;
    margin-bottom: 14px;
  }

  .toc {
    padding-left: 0;
    border-left: 0;
  }

  .doc-meta,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}