:root {
  --navy: #0A2540;
  --navy-deep: #06182b;
  --red: #C8102E;
  --red-deep: #9a0c23;
  --paper: #FFFFFF;
  --mist: #EEF2F6;
  --ink: #1C2430;
  --muted: #3e4a58;
  --rule: #c3ceda;
  --rule-strong: #8fa0b3;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", SimHei, sans-serif;
  color: var(--ink);
  background: var(--mist);
  line-height: 1.8;
  font-size: 16px;
}

img,
svg {
  max-width: 100%;
  vertical-align: middle;
}

a {
  color: var(--navy);
  text-decoration: none;
}

a:hover {
  color: var(--red);
  text-decoration: underline;
}

.wrap {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.mast {
  background: var(--navy);
  color: var(--paper);
  border-bottom: 3px solid var(--red);
}

.mast-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 84px;
  padding: 12px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  color: inherit;
  text-decoration: none;
}

.brand:hover {
  color: inherit;
  text-decoration: none;
}

.crest {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
}

.brand-kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.18em;
  opacity: 0.82;
}

.brand-name {
  margin: 2px 0 0;
  font-family: "SimHei", "STHeiti", "Microsoft YaHei", sans-serif;
  font-size: 22px;
  letter-spacing: 0.16em;
  font-weight: 700;
}

.site-nav {
  display: flex;
  gap: 8px 28px;
  flex-wrap: wrap;
}

.site-nav a {
  color: #d7e2ec;
  text-decoration: none;
  font-size: 15px;
  letter-spacing: 0.12em;
  padding: 8px 0 6px;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover {
  color: var(--paper);
  text-decoration: none;
  border-bottom-color: rgba(255, 255, 255, 0.35);
}

.site-nav a.is-current {
  color: var(--paper);
  border-bottom-color: var(--paper);
  font-weight: 700;
}

.crumb {
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  color: var(--muted);
  font-size: 13px;
  padding: 10px 0;
}

.crumb span {
  color: var(--navy);
}

.hero {
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.85fr);
  gap: 36px;
  padding: 40px 0 48px;
  align-items: stretch;
}

.kicker {
  margin: 0 0 10px;
  color: var(--red);
  font-size: 13px;
  letter-spacing: 0.22em;
  font-weight: 700;
}

h1 {
  margin: 0 0 16px;
  font-family: "SimHei", "STHeiti", "Microsoft YaHei", sans-serif;
  font-size: 30px;
  line-height: 1.4;
  letter-spacing: 0.06em;
  color: var(--navy);
  font-weight: 700;
}

.lead,
.prose p,
.panel p,
.cell p,
.quote p,
.faq dd {
  color: var(--ink);
}

.lead {
  margin: 0 0 14px;
  text-align: justify;
}

.hero-note {
  margin: 18px 0 0;
  padding: 10px 12px;
  border: 1px solid var(--rule);
  background: var(--mist);
  font-size: 14px;
  color: var(--muted);
}

.permit {
  background: var(--red);
  color: var(--paper);
  padding: 22px 20px 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100%;
  position: relative;
}

.permit-inner {
  border: 1px dashed rgba(255, 255, 255, 0.55);
  padding: 18px 16px 16px;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.permit-seal {
  width: 54px;
  height: 54px;
  margin-bottom: 10px;
}

.permit h2,
.permit .permit-title {
  margin: 0 0 8px;
  font-size: 20px;
  letter-spacing: 0.2em;
  font-family: "SimHei", "STHeiti", "Microsoft YaHei", sans-serif;
}

.permit p {
  margin: 0 0 10px;
  color: #fff;
  font-size: 14px;
}

.permit dl {
  margin: 8px 0 16px;
  font-size: 13px;
}

.permit dt {
  opacity: 0.8;
}

.permit dd {
  margin: 0 0 8px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.btn {
  appearance: none;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 15px;
  letter-spacing: 0.08em;
  padding: 11px 16px;
  background: var(--navy);
  color: var(--paper);
  width: 100%;
  text-align: center;
}

.btn:hover {
  background: var(--navy-deep);
}

.btn:disabled {
  opacity: 0.75;
  cursor: wait;
}

.btn-paper {
  background: var(--paper);
  color: var(--red);
  font-weight: 700;
}

.btn-paper:hover {
  background: var(--mist);
}

.btn-ghost {
  background: transparent;
  color: var(--paper);
  border: 1px solid rgba(255, 255, 255, 0.65);
  margin-top: 8px;
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
}

.btn-navy {
  background: var(--navy);
  color: var(--paper);
}

.btn-red {
  background: var(--red);
  color: var(--paper);
}

.btn-red:hover {
  background: var(--red-deep);
}

.btn-line {
  background: var(--paper);
  color: var(--navy);
  border: 1px solid var(--navy);
}

.btn-line:hover {
  background: var(--mist);
}

.link-row {
  margin-top: 10px;
  font-size: 13px;
}

.link-row a {
  color: #fff;
  text-decoration: underline;
}

section {
  padding: 36px 0;
}

.section-head {
  margin-bottom: 18px;
}

.section-head h2 {
  margin: 0 0 10px;
  font-family: "SimHei", "STHeiti", "Microsoft YaHei", sans-serif;
  font-size: 22px;
  letter-spacing: 0.14em;
  color: var(--navy);
  border-left: 4px solid var(--red);
  padding-left: 12px;
  line-height: 1.35;
}

.section-head p {
  margin: 0;
  text-align: justify;
  color: var(--ink);
}

.band-white {
  background: var(--paper);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.band-mist {
  background: var(--mist);
}

.quad {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--rule-strong);
  background: var(--paper);
}

.cell {
  padding: 22px 18px 20px;
  border-right: 1px solid var(--rule);
  min-height: 220px;
}

.cell:last-child {
  border-right: 0;
}

.cell svg {
  width: 36px;
  height: 36px;
  margin-bottom: 10px;
}

.cell h3 {
  margin: 0 0 8px;
  font-size: 17px;
  letter-spacing: 0.1em;
  color: var(--navy);
}

.cell p {
  margin: 0;
  font-size: 14px;
  text-align: justify;
}

.platform-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule-strong);
  border: 1px solid var(--rule-strong);
}

.platform {
  background: var(--navy);
  color: var(--paper);
  padding: 22px 16px;
  text-align: center;
}

.platform h3 {
  margin: 8px 0 6px;
  font-size: 16px;
  letter-spacing: 0.12em;
}

.platform p {
  margin: 0 0 14px;
  font-size: 13px;
  color: #d5dee8;
  min-height: 44px;
}

.platform svg {
  width: 28px;
  height: 28px;
}

.duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.panel {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 22px 22px 18px;
}

.panel h3 {
  margin: 0 0 12px;
  font-size: 18px;
  color: var(--navy);
  letter-spacing: 0.08em;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--red);
}

.panel p {
  margin: 0 0 12px;
  text-align: justify;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--navy);
  color: var(--paper);
}

.stat {
  padding: 28px 16px;
  text-align: center;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}

.stat:last-child {
  border-right: 0;
}

.stat strong {
  display: block;
  font-size: 32px;
  letter-spacing: 0.06em;
  font-weight: 700;
  line-height: 1.2;
}

.stat span {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  letter-spacing: 0.16em;
  opacity: 0.88;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--navy);
  background: var(--paper);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  border: 1px solid var(--rule);
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--navy);
  color: var(--paper);
  font-weight: 700;
  letter-spacing: 0.08em;
}

tr:nth-child(even) td {
  background: #f6f8fb;
}

.voices {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 1px solid var(--rule-strong);
}

.quote {
  background: var(--paper);
  padding: 22px 20px;
  border-right: 1px solid var(--rule);
}

.quote:last-child {
  border-right: 0;
}

.quote svg {
  width: 28px;
  height: 28px;
  margin-bottom: 8px;
}

.quote h3 {
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--navy);
}

.quote p {
  margin: 0 0 10px;
  font-size: 14px;
  text-align: justify;
}

.quote footer {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.faq {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 8px 22px 18px;
}

.faq dt {
  margin: 16px 0 6px;
  font-weight: 700;
  color: var(--navy);
  font-size: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
}

.faq dt:first-child {
  border-top: 0;
  padding-top: 8px;
}

.faq dd {
  margin: 0;
  text-align: justify;
}

.guide-ol {
  margin: 0;
  padding-left: 22px;
}

.guide-ol li {
  margin: 0 0 12px;
  text-align: justify;
}

.cta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--navy);
  color: var(--paper);
  padding: 22px 24px;
}

.cta-bar p {
  margin: 0;
  max-width: 720px;
}

.cta-bar a {
  display: inline-block;
  background: var(--red);
  color: var(--paper);
  text-decoration: none;
  padding: 10px 22px;
  letter-spacing: 0.12em;
  font-weight: 700;
}

.cta-bar a:hover {
  background: var(--red-deep);
  text-decoration: none;
  color: var(--paper);
}

.article h2 {
  margin: 28px 0 12px;
  font-family: "SimHei", "STHeiti", "Microsoft YaHei", sans-serif;
  font-size: 22px;
  color: var(--navy);
  letter-spacing: 0.1em;
  border-bottom: 1px solid var(--red);
  padding-bottom: 6px;
}

.article h3 {
  margin: 20px 0 10px;
  font-size: 18px;
  color: var(--navy);
}

.article p {
  margin: 0 0 14px;
  text-align: justify;
}

.article {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 28px 32px 20px;
}

.req-list {
  margin: 0;
  padding-left: 20px;
}

.req-list li {
  margin: 0 0 8px;
}

.foot {
  background: var(--navy-deep);
  color: #d5dee8;
  padding: 28px 0 32px;
  font-size: 13px;
  border-top: 3px solid var(--red);
}

.foot p {
  margin: 0 0 8px;
}

.foot-verify {
  color: var(--paper);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.dl-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
  align-items: start;
}

.dl-card {
  background: var(--paper);
  border: 1px solid var(--navy);
}

.dl-card header {
  background: var(--navy);
  color: var(--paper);
  padding: 14px 18px;
  letter-spacing: 0.16em;
  font-weight: 700;
}

.dl-card .body {
  padding: 18px;
}

.dl-card .body p {
  margin: 0 0 14px;
  text-align: justify;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 960px) {
  .hero-grid,
  .duo,
  .dl-grid,
  .quad,
  .platform-bar,
  .stats,
  .voices {
    grid-template-columns: 1fr 1fr;
  }

  .quad .cell:nth-child(2),
  .platform:nth-child(2),
  .stat:nth-child(2) {
    border-right: 0;
  }
}

@media (max-width: 720px) {
  .mast-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  h1 {
    font-size: 24px;
  }

  .hero-grid,
  .duo,
  .dl-grid,
  .quad,
  .platform-bar,
  .stats,
  .voices {
    grid-template-columns: 1fr;
  }

  .cell,
  .quote,
  .stat,
  .platform {
    border-right: 0;
    border-bottom: 1px solid var(--rule);
  }

  .article {
    padding: 20px 16px;
  }
}