:root {
  --navy: #092f5f;
  --navy-2: #0d427d;
  --navy-3: #062346;
  --blue: #1e63a6;
  --orange: #f47a24;
  --orange-2: #ff9a3d;
  --ink: #162335;
  --muted: #64748b;
  --line: #dbe4ef;
  --soft: #f4f7fb;
  --soft-blue: #eaf2fb;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(8, 32, 65, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(219, 228, 239, 0.9);
  backdrop-filter: blur(14px);
}

.site-header.has-shadow {
  box-shadow: 0 8px 24px rgba(8, 32, 65, 0.08);
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 40px));
  min-height: 78px;
  margin: 0 auto;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 230px;
}

.brand img {
  width: 76px;
  height: 54px;
  object-fit: contain;
}

.brand-copy {
  display: grid;
  gap: 1px;
}

.brand-copy strong {
  color: var(--navy);
  font-size: 28px;
  line-height: 1.05;
  font-weight: 800;
}

.brand-copy span {
  color: var(--navy-2);
  font-size: 13px;
  font-weight: 700;
}

.header-call {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  color: var(--navy);
}

.call-icon {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: var(--white);
  background: var(--navy);
  border-radius: 50%;
}

.call-icon svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.header-call small,
.header-call b {
  display: block;
}

.header-call small {
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.header-call b {
  color: var(--orange);
  font-size: 22px;
  line-height: 1.1;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 8px;
}

.nav-toggle span {
  position: absolute;
  width: 21px;
  height: 2px;
  background: var(--navy);
  border-radius: 99px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle span:nth-child(1) {
  transform: translateY(-7px);
}

.nav-toggle span:nth-child(3) {
  transform: translateY(7px);
}

.nav-toggle em {
  position: absolute;
  overflow: hidden;
  width: 1px;
  height: 1px;
  clip: rect(0, 0, 0, 0);
}

.nav-toggle.is-open span:nth-child(1) {
  transform: rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: rotate(-45deg);
}

.site-nav {
  display: flex;
  justify-content: center;
  background: var(--navy-3);
  color: var(--white);
}

.site-nav a {
  position: relative;
  padding: 15px 15px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--white);
}

.site-nav a.active::after,
.site-nav a:hover::after {
  position: absolute;
  right: 15px;
  bottom: 0;
  left: 15px;
  height: 3px;
  content: "";
  background: var(--orange);
  border-radius: 99px 99px 0 0;
}

.hero {
  overflow: hidden;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(6, 35, 70, 0.98), rgba(10, 55, 105, 0.92) 50%, rgba(13, 66, 125, 0.82)),
    radial-gradient(circle at 78% 24%, rgba(255, 255, 255, 0.18), transparent 28%),
    var(--navy-3);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(420px, 0.98fr);
  align-items: center;
  width: min(1180px, calc(100% - 40px));
  min-height: 470px;
  margin: 0 auto;
  gap: 42px;
  padding: 54px 0 58px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--orange);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 680px;
  margin: 0;
  font-size: 48px;
  line-height: 1.18;
  font-weight: 900;
  overflow-wrap: anywhere;
}

.hero-lead {
  max-width: 650px;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 18px;
  overflow-wrap: anywhere;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
}

.btn-light {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.06);
}

.btn-orange {
  color: var(--white);
  background: linear-gradient(135deg, var(--orange), var(--orange-2));
  box-shadow: 0 12px 24px rgba(244, 122, 36, 0.25);
}

.hero-visual {
  position: relative;
  padding: 18px;
}

.hero-visual::before {
  position: absolute;
  inset: 9% 5%;
  content: "";
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 18px;
}

.hero-visual img {
  position: relative;
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.26);
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  width: min(1180px, calc(100% - 40px));
  margin: -34px auto 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.trust-item {
  display: grid;
  grid-template-columns: 38px 1fr;
  column-gap: 12px;
  padding: 22px 24px;
  border-right: 1px solid var(--line);
}

.trust-item:last-child {
  border-right: 0;
}

.trust-item strong {
  color: var(--navy);
  font-size: 16px;
}

.trust-item p {
  grid-column: 2;
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.mini-icon {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: var(--blue);
  background: var(--soft-blue);
  border-radius: 8px;
}

.mini-icon::before {
  font-weight: 900;
}

.shield::before {
  content: "判";
}

.boundary::before {
  content: "责";
}

.doc::before {
  content: "合";
}

.info::before {
  content: "参";
}

.section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0 0;
}

.section-head {
  margin-bottom: 26px;
  text-align: center;
}

.section-head h2 {
  margin: 0;
  color: var(--navy);
  font-size: 30px;
  line-height: 1.25;
}

.section-head > p:last-child {
  max-width: 760px;
  margin: 10px auto 0;
  color: var(--muted);
}

.split {
  display: flex;
  align-items: end;
  justify-content: space-between;
  text-align: left;
}

.text-link {
  color: var(--navy-2);
  font-weight: 800;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.topic-card {
  position: relative;
  overflow: hidden;
  padding: 28px;
  background: linear-gradient(180deg, var(--white), #f8fbff);
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.topic-card::after {
  position: absolute;
  top: 22px;
  right: 22px;
  width: 118px;
  height: 88px;
  content: "";
  background: url("/assets/images/topic-badge.png") center / contain no-repeat;
  opacity: 0.2;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.topic-card:hover {
  transform: translateY(-3px);
  border-color: rgba(30, 99, 166, 0.35);
  box-shadow: var(--shadow);
}

.topic-card:hover::after {
  opacity: 0.26;
  transform: translateY(-2px);
}

.topic-icon {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 18px;
  color: var(--white);
  background: var(--navy-2);
  border-radius: 8px;
  font-weight: 900;
}

.topic-card h3,
.why-grid h3,
.scene-card h3,
.article-card h3 {
  margin: 0;
  color: var(--navy);
  line-height: 1.35;
}

.topic-card h3,
.topic-card p,
.topic-card a {
  position: relative;
  z-index: 1;
}

.topic-card p {
  min-height: 54px;
  margin: 12px 0 20px;
  color: var(--muted);
}

.topic-card a,
.article-body a {
  display: inline-flex;
  color: var(--navy-2);
  font-weight: 800;
}

.why {
  width: 100%;
  margin-top: 72px;
  padding: 58px max(20px, calc((100% - 1180px) / 2)) 62px;
  background: var(--soft);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  width: min(1180px, 100%);
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.why-grid article {
  padding: 28px;
  border-right: 1px solid var(--line);
}

.why-grid article:last-child {
  border-right: 0;
}

.why-grid span {
  display: inline-grid;
  width: 40px;
  height: 40px;
  margin-bottom: 14px;
  place-items: center;
  color: var(--orange);
  background: #fff3e9;
  border-radius: 8px;
  font-weight: 900;
}

.why-grid p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 14px;
}

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

.scene-card {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(8, 32, 65, 0.08);
}

.scene-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.scene-card h3 {
  padding: 16px 18px 18px;
  font-size: 17px;
}

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

.article-card {
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(8, 32, 65, 0.07);
}

.article-card img {
  width: 100%;
  height: 142px;
  object-fit: cover;
}

.article-body {
  padding: 18px;
}

.article-body span {
  display: inline-flex;
  margin-bottom: 10px;
  padding: 3px 9px;
  color: #9a4c0d;
  background: #fff3e5;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 800;
}

.article-body h3 {
  font-size: 17px;
}

.article-body p {
  min-height: 72px;
  margin: 10px 0 16px;
  color: var(--muted);
  font-size: 14px;
}

.prepare {
  padding-bottom: 78px;
}

.prepare-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 30px;
  padding: 40px;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(6, 35, 70, 0.98), rgba(13, 66, 125, 0.95)),
    var(--navy);
  border-radius: 8px;
}

.prepare-card h2 {
  margin: 0;
  font-size: 30px;
}

.prepare-card p {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.86);
}

.prepare-card ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.prepare-card li {
  padding: 8px 13px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  font-weight: 700;
}

.phone-panel {
  display: grid;
  align-content: center;
  gap: 12px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
}

.phone-panel span {
  color: rgba(255, 255, 255, 0.8);
  font-weight: 800;
}

.phone-panel strong {
  color: var(--orange-2);
  font-size: 32px;
  line-height: 1.1;
}

.site-footer {
  color: rgba(255, 255, 255, 0.86);
  background: var(--navy-3);
}

.footer-inner {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  gap: 44px;
  padding: 44px 0 30px;
}

.footer-brand img {
  width: 92px;
  height: 70px;
  object-fit: contain;
}

.footer-brand strong,
.footer-brand span {
  display: block;
}

.footer-brand strong {
  margin-top: 8px;
  color: var(--white);
  font-size: 26px;
}

.footer-brand span {
  color: rgba(255, 255, 255, 0.78);
  font-size: 13px;
}

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

.footer-links section {
  display: grid;
  gap: 7px;
}

.footer-links h2 {
  margin: 0 0 8px;
  color: var(--white);
  font-size: 16px;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
}

.footer-address {
  margin-top: 2px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 14px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  gap: 24px;
  padding: 18px 0 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.66);
  font-size: 13px;
}

.footer-bottom p {
  max-width: 780px;
  margin: 0;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.72);
}

.footer-bottom a:hover {
  color: var(--white);
}

.mobile-call {
  display: none;
}

.article-main {
  background: linear-gradient(180deg, #f5f8fc, #ffffff 360px);
}

.article-page {
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
  padding: 44px 0 76px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 14px;
}

.breadcrumb a {
  color: var(--navy-2);
  font-weight: 700;
}

.article-header {
  padding: 34px 36px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 34px rgba(8, 32, 65, 0.08);
}

.article-header h1 {
  margin: 0;
  color: var(--navy);
  font-size: 36px;
  line-height: 1.28;
  overflow-wrap: anywhere;
}

.article-summary {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
  color: var(--muted);
  font-size: 14px;
}

.article-meta span {
  padding: 5px 10px;
  background: var(--soft);
  border-radius: 6px;
}

.article-hero-image {
  width: 100%;
  max-height: 420px;
  margin: 24px 0 0;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.article-content {
  margin-top: 28px;
  padding: 34px 36px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.article-content h2 {
  margin: 30px 0 12px;
  color: var(--navy);
  font-size: 23px;
  line-height: 1.35;
}

.article-content h2:first-child {
  margin-top: 0;
}

.article-content p {
  margin: 0 0 18px;
  color: #26384f;
  font-size: 17px;
}

.article-notice {
  margin-top: 20px;
  padding: 24px 28px;
  background: #fff7ef;
  border: 1px solid #ffd9ba;
  border-radius: 8px;
}

.article-notice h2 {
  margin: 0 0 8px;
  color: #9a4c0d;
  font-size: 20px;
}

.article-notice p {
  margin: 0;
  color: #74420f;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 20px;
}

.article-tags span {
  padding: 5px 10px;
  color: var(--navy-2);
  background: var(--soft-blue);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 700;
}

@media (max-width: 980px) {
  .header-top {
    min-height: 70px;
  }

  .brand-copy strong {
    font-size: 24px;
  }

  .header-call {
    display: none;
  }

  .nav-toggle {
    position: relative;
    display: inline-flex;
  }

  .site-nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 8px 20px 16px;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 12px 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .site-nav a::after {
    display: none;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    min-height: 0;
    padding: 42px 0 58px;
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero-visual {
    padding: 0;
  }

  .trust-strip,
  .topic-grid,
  .why-grid,
  .scene-grid,
  .article-grid,
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }

  .trust-item:nth-child(2) {
    border-right: 0;
  }

  .trust-item:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .why-grid article:nth-child(2) {
    border-right: 0;
  }

  .why-grid article:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .prepare-card,
  .footer-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body {
    padding-bottom: 58px;
  }

  .header-top,
  .hero-inner,
  .trust-strip,
  .section,
  .footer-inner,
  .footer-bottom {
    width: min(100% - 28px, 1180px);
  }

  .brand {
    min-width: 0;
    gap: 8px;
  }

  .brand img {
    width: 58px;
    height: 44px;
  }

  .brand-copy strong {
    font-size: 21px;
  }

  .brand-copy span {
    font-size: 11px;
  }

  .hero h1 {
    font-size: 31px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-actions,
  .prepare-card ul {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .trust-strip,
  .topic-grid,
  .why-grid,
  .scene-grid,
  .article-grid,
  .footer-links {
    grid-template-columns: 1fr;
  }

  .trust-item {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .trust-item:last-child {
    border-bottom: 0;
  }

  .section {
    padding-top: 52px;
  }

  .section-head h2,
  .prepare-card h2 {
    font-size: 25px;
  }

  .split {
    align-items: start;
    flex-direction: column;
    gap: 10px;
  }

  .topic-card,
  .why-grid article,
  .prepare-card {
    padding: 22px;
  }

  .topic-card::after {
    top: 18px;
    right: 18px;
    width: 92px;
    height: 68px;
    opacity: 0.16;
  }

  .why {
    margin-top: 52px;
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .why-grid article {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .why-grid article:last-child {
    border-bottom: 0;
  }

  .scene-card img {
    height: 190px;
  }

  .article-body p {
    min-height: 0;
  }

  .phone-panel strong {
    font-size: 28px;
  }

  .article-page {
    width: min(100% - 28px, 920px);
    padding-top: 30px;
  }

  .article-header,
  .article-content {
    padding: 24px 20px;
  }

  .article-header h1 {
    font-size: 28px;
  }

  .article-summary,
  .article-content p {
    font-size: 16px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    align-items: center;
    text-align: center;
  }

  .mobile-call {
    position: fixed;
    right: 14px;
    bottom: 12px;
    left: 14px;
    z-index: 60;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    color: var(--white);
    background: linear-gradient(135deg, var(--orange), var(--orange-2));
    border-radius: 8px;
    box-shadow: 0 12px 26px rgba(15, 23, 42, 0.28);
    font-weight: 900;
  }
}