:root {
  color-scheme: light;
  --bg: #f5f1e8;
  --bg-solid: #fffdfa;
  --ink: #132126;
  --muted: #5e696c;
  --accent: #0f6a6d;
  --accent-deep: #0b5357;
  --accent-soft: rgba(15, 106, 109, 0.1);
  --amber: #c88727;
  --amber-soft: rgba(200, 135, 39, 0.14);
  --line: rgba(19, 33, 38, 0.12);
  --panel: rgba(255, 253, 249, 0.88);
  --panel-strong: #fffdf9;
  --shadow-lg: 0 32px 70px rgba(19, 33, 38, 0.12);
  --shadow-md: 0 18px 44px rgba(19, 33, 38, 0.09);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  background:
    radial-gradient(circle at top left, rgba(15, 106, 109, 0.10), transparent 28%),
    linear-gradient(rgba(19, 33, 38, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(19, 33, 38, 0.035) 1px, transparent 1px),
    var(--bg);
  background-size: auto, 28px 28px, 28px 28px, auto;
}

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

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

a:hover {
  text-decoration: none;
}

.shell {
  width: min(1180px, calc(100vw - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(245, 241, 232, 0.82);
  border-bottom: 1px solid rgba(19, 33, 38, 0.06);
}

.header-row,
.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.header-row {
  min-height: 88px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: 0;
}

.brand img {
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(15, 106, 109, 0.22);
}

.site-nav,
.footer-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.site-nav a,
.footer-nav a {
  position: relative;
  color: var(--muted);
  font-weight: 600;
}

.site-nav a.current,
.site-nav a:hover,
.footer-nav a:hover {
  color: var(--ink);
}

.site-nav a.current::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -14px;
  height: 3px;
  border-radius: 999px;
  background: var(--accent);
}

.hero,
.page-hero {
  display: grid;
  gap: 44px;
  align-items: center;
}

.hero {
  grid-template-columns: minmax(0, 1.16fr) minmax(360px, 0.84fr);
  padding: 72px 0 44px;
}

.page-hero {
  padding: 72px 0 24px;
}

h1,
h2,
h3,
strong {
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: clamp(2.7rem, 3.7vw, 3.9rem);
  line-height: 1.08;
  text-wrap: balance;
}

h2 {
  margin: 0;
  font-size: clamp(1.65rem, 2vw, 2.3rem);
  line-height: 1.14;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.35rem;
  line-height: 1.25;
}

p {
  margin: 0;
}

.lead {
  max-width: 680px;
  font-size: 1.2rem;
  color: var(--muted);
}

.hero-copy {
  display: grid;
  gap: 22px;
}

.hero-copy h1 {
  max-width: 12ch;
}

.hero-actions,
.closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 28px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-size: 1.05rem;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #fff;
  background: linear-gradient(180deg, var(--accent), var(--accent-deep));
  box-shadow: 0 16px 36px rgba(15, 106, 109, 0.22);
}

.button-secondary {
  color: var(--ink);
  background: rgba(255, 253, 249, 0.72);
  border-color: rgba(15, 106, 109, 0.28);
}

.inline-note,
.small-note {
  color: var(--muted);
  font-size: 0.98rem;
}

.value-grid,
.audience-grid,
.support-grid,
.policy-grid {
  display: grid;
  gap: 18px;
}

.value-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 8px;
}

.value-grid article,
.audience-grid article,
.support-card,
.comparison-panel,
.notice-card,
.statement-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: var(--shadow-md);
}

.value-grid article,
.audience-grid article {
  padding: 22px 22px 20px;
}

.value-grid article {
  padding: 0 18px 0 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.value-grid article::before {
  content: "";
  display: block;
  width: 38px;
  height: 4px;
  margin-bottom: 14px;
  border-radius: 999px;
  background: rgba(15, 106, 109, 0.36);
}

.value-grid h2 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.hero-visual {
  position: relative;
  min-height: 720px;
}

.hero-blueprint {
  position: absolute;
  inset: 82px 8px 60px 18%;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(rgba(19, 33, 38, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(19, 33, 38, 0.06) 1px, transparent 1px),
    rgba(255, 255, 255, 0.36);
  background-size: 22px 22px;
  opacity: 0.55;
}

.phone-shot,
.report-card {
  position: absolute;
  overflow: hidden;
  border-radius: 34px;
  background: #fff;
  box-shadow: var(--shadow-lg);
}

.phone-shot {
  width: clamp(220px, 24vw, 290px);
  padding: 12px;
  border: 8px solid #121212;
}

.phone-shot img,
.report-card img {
  border-radius: 24px;
}

.phone-primary {
  top: 64px;
  left: 12%;
  z-index: 3;
}

.phone-secondary {
  top: 126px;
  right: 12%;
  z-index: 2;
}

.report-card {
  z-index: 1;
  width: clamp(210px, 22vw, 280px);
  right: -1%;
  top: 136px;
  border: 1px solid rgba(19, 33, 38, 0.1);
  padding: 12px;
  border-radius: 24px;
  background: rgba(255, 253, 249, 0.96);
}

.section,
.gallery-band {
  padding: 34px 0 42px;
}

.section-tight {
  padding-top: 10px;
}

.section-heading {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
}

.section-heading p {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.05rem;
}

.scenario-row {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: 26px;
  padding: 28px 0;
  border-top: 1px solid rgba(19, 33, 38, 0.12);
}

.scenario-row:last-of-type {
  border-bottom: 1px solid rgba(19, 33, 38, 0.12);
}

.scenario-summary {
  display: flex;
  gap: 20px;
}

.scenario-link {
  margin-top: 14px;
  font-size: 0.98rem;
  font-weight: 700;
}

.scenario-link a {
  color: var(--accent);
}

.scenario-index {
  flex: 0 0 auto;
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(180deg, var(--accent), var(--accent-deep));
  color: #fff;
  font-weight: 800;
  box-shadow: 0 10px 22px rgba(15, 106, 109, 0.2);
}

.check-list {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 10px;
}

.check-list li::marker {
  color: var(--accent);
}

.muted-list li::marker {
  color: rgba(19, 33, 38, 0.36);
}

.gallery-band {
  background:
    radial-gradient(circle at top left, rgba(15, 106, 109, 0.18), transparent 26%),
    linear-gradient(180deg, #103238, #0d262a);
  color: rgba(255, 255, 255, 0.95);
}

.section-heading-light p,
.section-heading-light {
  color: rgba(255, 255, 255, 0.78);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.gallery-grid figure {
  margin: 0;
}

.gallery-grid img {
  width: 100%;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.24);
}

.gallery-grid figcaption {
  margin-top: 12px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.82);
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

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

.guide-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: var(--shadow-md);
  display: grid;
  gap: 16px;
}

.guide-card p {
  color: var(--muted);
}

.guide-card .button {
  width: 100%;
}

.article-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.8fr);
  gap: 24px;
  align-items: center;
}

.article-hero .lead {
  max-width: 100%;
}

.article-shot {
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid rgba(19, 33, 38, 0.1);
  box-shadow: var(--shadow-lg);
  background: rgba(255, 253, 249, 0.92);
  padding: 12px;
}

.article-shot img {
  border-radius: 20px;
}

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

.step-card,
.resource-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 253, 249, 0.78);
  box-shadow: var(--shadow-md);
}

.step-card strong,
.resource-card strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.02rem;
}

.step-card p,
.resource-card p {
  color: var(--muted);
}

.resource-card ul {
  margin: 12px 0 0;
}

.guide-rail {
  display: grid;
  gap: 18px;
}

.guide-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(15, 106, 109, 0.12);
  color: var(--accent-deep);
  font-size: 0.95rem;
  font-weight: 700;
}

.comparison-panel {
  padding: 24px;
}

.comparison-panel-accent {
  border-color: rgba(15, 106, 109, 0.26);
  background: linear-gradient(180deg, rgba(15, 106, 109, 0.1), rgba(255, 253, 249, 0.9));
}

.statement-card {
  margin-top: 20px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.statement-card span {
  color: var(--muted);
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 253, 249, 0.72);
  box-shadow: 0 14px 30px rgba(19, 33, 38, 0.05);
}

.faq-list summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 22px;
  font-size: 1.05rem;
  font-weight: 700;
  position: relative;
}

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

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 16px;
  color: var(--accent);
  font-size: 1.45rem;
  font-weight: 500;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  padding: 0 22px 20px;
  color: var(--muted);
}

.closing-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) auto;
  gap: 24px;
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 253, 249, 0.92), rgba(15, 106, 109, 0.08));
  box-shadow: var(--shadow-md);
}

.notice-card,
.support-card {
  padding: 22px;
}

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

.support-card p + p {
  margin-top: 12px;
}

.site-footer {
  margin-top: 32px;
  padding: 30px 0 34px;
  color: rgba(255, 255, 255, 0.84);
  background: linear-gradient(180deg, #103238, #0b2427);
}

.brand-footer {
  font-size: 1.6rem;
  color: #fff;
}

.site-footer p,
.site-footer a {
  color: rgba(255, 255, 255, 0.82);
}

@media (max-width: 1100px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 56px;
  }

  .hero-visual {
    min-height: 640px;
  }

  .hero-blueprint {
    inset: 60px 4% 44px 6%;
  }

  .phone-primary {
    left: 6%;
  }

  .phone-secondary {
    right: 12%;
  }

  .report-card {
    right: 2%;
  }

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

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

@media (max-width: 860px) {
  .header-row,
  .footer-row,
  .closing-panel,
  .comparison-grid,
  .support-grid,
  .policy-grid,
  .scenario-row {
    grid-template-columns: 1fr;
  }

  .header-row,
  .footer-row {
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 0;
  }

  .site-nav {
    gap: 20px;
  }

  .site-nav a.current::after {
    bottom: -10px;
  }

  .hero-visual {
    min-height: 560px;
  }

  .article-hero,
  .step-grid,
  .resource-grid {
    grid-template-columns: 1fr;
  }

  .phone-shot {
    width: min(240px, 44vw);
  }

  .report-card {
    width: min(220px, 40vw);
    top: 36px;
  }

  .value-grid,
  .audience-grid,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .value-grid article {
    padding-right: 0;
  }
}

@media (max-width: 640px) {
  body {
    background-size: auto, 18px 18px, 18px 18px, auto;
  }

  .shell {
    width: min(100vw - 28px, 1180px);
  }

  .hero,
  .page-hero {
    gap: 28px;
  }

  .hero-visual {
    min-height: 500px;
  }

  .phone-shot {
    width: 48vw;
    border-width: 6px;
    padding: 8px;
    border-radius: 28px;
  }

  .phone-shot img {
    border-radius: 20px;
  }

  .phone-primary {
    left: 0;
  }

  .phone-secondary {
    top: 120px;
    right: 4%;
  }

  .report-card {
    width: 42vw;
    top: 24px;
    right: 0;
    padding: 8px;
  }

  .hero-actions,
  .closing-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .statement-card {
    flex-direction: column;
    align-items: flex-start;
  }
}