<!-- 文件路径：assets/css/style.css -->
:root {
  --color-primary: #1f3a5f;
  --color-primary-dark: #162b47;
  --color-accent: #2563eb;
  --color-accent-alt: #22c55e;
  --color-bg: #ffffff;
  --color-bg-soft: #f5f7fa;
  --color-bg-muted: #eef2f7;
  --color-text: #172033;
  --color-text-muted: #6b7280;
  --color-text-soft: #94a3b8;
  --color-line: #d7dfeb;
  --color-line-strong: #c4cfde;
  --color-white: #ffffff;
  --color-dark-card: #1f3a5f;
  --color-dark-card-2: #223f67;
  --color-success: #16a34a;
  --color-warning: #d97706;
  --color-danger: #dc2626;
  --shadow-sm: 0 10px 30px rgba(17, 24, 39, 0.06);
  --shadow-md: 0 18px 42px rgba(17, 24, 39, 0.1);
  --shadow-lg: 0 28px 60px rgba(17, 24, 39, 0.14);
  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --container: 1200px;
  --container-narrow: 980px;
  --header-height: 78px;
  --transition: 0.28s ease;
  --font-base: Inter, "Helvetica Neue", Arial, sans-serif;
  --font-body: "Open Sans", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg,
video,
canvas,
iframe {
  display: block;
  max-width: 100%;
}

img {
  border: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition), background-color var(--transition), border-color var(--transition), opacity var(--transition), transform var(--transition);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
  background: none;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1rem;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
}

input:focus,
select:focus,
textarea:focus {
  outline: 0;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

textarea {
  resize: vertical;
  min-height: 140px;
}

ul,
ol {
  margin: 0;
  padding-left: 1.1rem;
}

p,
li {
  color: var(--color-text-muted);
  font-size: 1rem;
}

p {
  margin: 0 0 1rem;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 1rem;
  color: var(--color-text);
  line-height: 1.15;
  font-family: var(--font-base);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  font-weight: 700;
}

h2 {
  font-size: clamp(1.9rem, 3vw, 3rem);
  font-weight: 700;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  font-weight: 700;
}

h4 {
  font-size: 1.1rem;
  font-weight: 700;
}

small,
.text-small {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
}

th,
td {
  padding: 1rem;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--color-text);
  font-weight: 700;
  background: var(--color-bg-soft);
}

main {
  min-height: 60vh;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.container-narrow {
  width: min(100% - 2rem, var(--container-narrow));
  margin-inline: auto;
}

.section {
  padding: 5.5rem 0;
}

.section-sm {
  padding: 3.5rem 0;
}

.section-lg {
  padding: 7rem 0;
}

.bg-soft {
  background: var(--color-bg-soft);
}

.bg-muted {
  background: var(--color-bg-muted);
}

.bg-dark {
  background: var(--color-primary);
  color: var(--color-white);
}

.bg-dark h1,
.bg-dark h2,
.bg-dark h3,
.bg-dark h4,
.bg-dark p,
.bg-dark li,
.bg-dark .eyebrow,
.bg-dark .section-intro,
.bg-dark .stat-label {
  color: var(--color-white);
}

.stack-xs > * + * {
  margin-top: 0.5rem;
}

.stack-sm > * + * {
  margin-top: 0.9rem;
}

.stack > * + * {
  margin-top: 1.25rem;
}

.stack-lg > * + * {
  margin-top: 1.8rem;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.2rem;
  align-items: center;
}

.split-reverse {
  grid-template-columns: 0.9fr 1.1fr;
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.align-start {
  align-items: flex-start;
}

.center {
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.85rem;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.section-head {
  margin-bottom: 2.2rem;
}

.section-head.center {
  max-width: 760px;
  margin-inline: auto;
  margin-bottom: 2.2rem;
}

.section-intro {
  max-width: 760px;
  font-size: 1.05rem;
}

.kicker-line {
  width: 44px;
  height: 2px;
  background: currentColor;
  opacity: 0.25;
  display: inline-block;
}

.btn,
button.btn,
input.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 48px;
  padding: 0.85rem 1.35rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-family: var(--font-base);
  line-height: 1;
  border: 1px solid transparent;
  text-align: center;
  box-shadow: none;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), color var(--transition), border-color var(--transition);
}

.btn:hover,
button.btn:hover,
input.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn:active,
button.btn:active,
input.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-primary:hover {
  background: #1d4ed8;
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-line-strong);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.36);
  color: var(--color-white);
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--color-white);
  background: rgba(255, 255, 255, 0.08);
}

.btn-success {
  background: var(--color-accent-alt);
  color: var(--color-white);
}

.btn-success:hover {
  background: #16a34a;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  color: var(--color-accent);
}

.link-arrow::after {
  content: "→";
  transition: transform var(--transition);
}

.link-arrow:hover::after {
  transform: translateX(4px);
}

.card-light {
  background: #ffffff;
  color: var(--color-text);
  border: 1px solid #d7dfeb;
  box-shadow: 0 10px 24px rgba(17, 24, 39, 0.08);
  border-radius: 18px;
  padding: 1.5rem;
}

.card {
  background: #ffffff;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0px 4px 16px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.step-number {
  background: #2563eb;
  color: white;
  padding: 0.5rem;
  border-radius: 50%;
  font-size: 1.2rem;
  display: inline-block;
  margin-bottom: 1rem;
}

.step-title {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
}

.step-description {
  color: #6b7280;
  margin-bottom: 1rem;
}

.card p,
.card li {
  color: var(--color-text-muted);
}

.card-dark {
  background: linear-gradient(135deg, #1f3a5f, #223f67);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(17, 24, 39, 0.06);
  padding: 2rem;
  min-height: 240px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card-dark:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 42px rgba(17, 24, 39, 0.12);
}

.card-dark h3 {
  margin-bottom: 0.9rem;
  line-height: 1.2;
}

.card-dark p {
  margin: 0;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.88);
}

.card-dark h2,
.card-dark h3,
.card-dark h4,
.card-dark p,
.card-dark li,
.card-dark .text-small,
.card-dark .meta,
.card-dark .eyebrow {
  color: #ffffff;
}

.card-light {
  background: var(--color-bg-soft);
  color: var(--color-text);
  border: 1px solid var(--color-line);
}

.card-light h2,
.card-light h3,
.card-light h4 {
  color: var(--color-text);
}

.card-light p,
.card-light li,
.card-light .text-small,
.card-light .meta {
  color: var(--color-text-muted);
}

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(37, 99, 235, 0.12);
  color: var(--color-accent);
  margin-bottom: 1rem;
  font-size: 1.35rem;
  font-weight: 700;
}

.card-dark .card-icon {
  background: rgba(255, 255, 255, 0.14);
  color: var(--color-white);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-accent);
  font-size: 0.85rem;
  font-weight: 700;
}

.badge-soft {
  background: rgba(255, 255, 255, 0.12);
  color: var(--color-white);
}

.hero {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  overflow: hidden;
  color: var(--color-white);
  background-color: var(--color-primary);
  background-size: cover;
  background-position: center;
    padding-top: 120px;
padding-bottom: 80px
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(18, 31, 50, 0.78) 0%,
    rgba(18, 31, 50, 0.58) 38%,
    rgba(18, 31, 50, 0.22) 100%
  );
}

.hero > .container,
.hero > .container-narrow {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 560px;
}

.hero h1,
.hero h2,
.hero p {
  color: #ffffff;  /* 文字改成白色 */
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.22);  /* 给文字加上阴影，增强可读性 */
}

.hero p {
  font-size: 1.08rem;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.8rem;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
  max-width: 720px;
}

.metric {
  padding: 1rem 1.15rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-md);
  backdrop-filter: blur(10px);
  background: rgba(15, 23, 42, 0.42);
}

.metric-value {
  display: block;
  font-size: 1.4rem;
  font-weight: 700;
  color: #ffffff;
  font-family: var(--font-base);
}

.metric-label {
  display: block;
  margin-top: 0.25rem;
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.92rem;
}

.page-hero {
  background: linear-gradient(135deg, var(--color-primary), #2a4a76);
  color: var(--color-white);
  padding: 7rem 0 4.25rem;
}

.page-hero h1,
.page-hero p,
.page-hero .eyebrow {
  color: var(--color-white);
}

.image-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-bg-muted);
  min-height: 260px;
  box-shadow: var(--shadow-sm);
}

.image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.image-frame.tall {
  min-height: 420px;
}

.image-frame.medium {
  min-height: 320px;
}

.image-frame.short {
  min-height: 220px;
}

.media-overlay {
  position: absolute;
  inset: auto 1rem 1rem 1rem;
  background: rgba(23, 32, 51, 0.86);
  color: var(--color-white);
  border-radius: var(--radius-md);
  padding: 0.9rem 1rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.stat-box {
  padding: 1.25rem;
  border-radius: var(--radius-md);
  background: var(--color-white);
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-sm);
}

.stat-value {
  display: block;
  color: var(--color-primary);
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.35rem;
  font-family: var(--font-base);
}

.stat-label {
  color: var(--color-text-muted);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.step-card {
  position: relative;
  padding: 1.6rem;
  border-radius: var(--radius-lg);
  background: var(--color-white);
  border: 1px solid var(--color-line);
  box-shadow: var(--shadow-sm);
}

.step-number {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  margin-bottom: 1rem;
  background: rgba(37, 99, 235, 0.12);
  color: var(--color-accent);
  font-weight: 700;
  font-family: var(--font-base);
}

.timeline {
  position: relative;
  display: grid;
  gap: 1.25rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--color-line-strong);
}

.timeline-item {
  position: relative;
  padding-left: 3.25rem;
}

.timeline-dot {
  position: absolute;
  left: 8px;
  top: 0.3rem;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 4px solid var(--color-white);
  box-shadow: 0 0 0 1px var(--color-accent);
}

.comparison-slider {
  position: relative;
  min-height: 420px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: #dce4ef;
}

.comparison-slider .comparison-image,
.comparison-slider .comparison-overlay {
  position: absolute;
  inset: 0;
}

.comparison-slider img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.comparison-slider .comparison-overlay {
  width: 50%;
  overflow: hidden;
  border-right: 2px solid rgba(255, 255, 255, 0.9);
}

.comparison-slider input[type="range"] {
  position: absolute;
  inset: auto 1.25rem 1.25rem 1.25rem;
  width: calc(100% - 2.5rem);
  z-index: 3;
  padding: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.comparison-handle {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  margin-top: -27px;
  margin-left: -27px;
  border-radius: 50%;
  background: var(--color-white);
  color: var(--color-primary);
  font-weight: 700;
  box-shadow: var(--shadow-md);
  pointer-events: none;
}

.comparison-label {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 2;
  display: inline-flex;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(23, 32, 51, 0.82);
  color: var(--color-white);
  font-size: 0.85rem;
  font-weight: 700;
}

.comparison-label.after {
  left: auto;
  right: 1rem;
}

.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.filter-tab {
  padding: 0.8rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--color-line-strong);
  background: var(--color-white);
  color: var(--color-text);
  font-weight: 700;
}

.filter-tab.active,
.filter-tab:hover {
  border-color: var(--color-accent);
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-accent);
}

.accordion {
  display: grid;
  gap: 0.9rem;
}

.accordion-item {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-white);
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  padding: 1.2rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-align: left;
  font-weight: 700;
  color: var(--color-text);
}

.accordion-trigger::after {
  content: "+";
  flex: 0 0 auto;
  font-size: 1.2rem;
  color: var(--color-accent);
}

.accordion-item.active .accordion-trigger::after {
  content: "−";
}

.accordion-panel {
  display: none;
  padding: 0 1.25rem 1.2rem;
}

.accordion-item.active .accordion-panel {
  display: block;
}

.tabs {
  display: grid;
  gap: 1rem;
}

.tab-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.tab-button {
  padding: 0.85rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--color-line-strong);
  background: var(--color-white);
  font-weight: 700;
  color: var(--color-text);
}

.tab-button.active {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(37, 99, 235, 0.08);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.form-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-row {
  display: grid;
  gap: 0.5rem;
}

.form-row.full {
  grid-column: 1 / -1;
}

.form-note {
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

.upload-box {
  border: 1.5px dashed var(--color-line-strong);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  background: var(--color-bg-soft);
}

.quote-badges,
.trust-points,
.inline-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.inline-list {
  padding-left: 0;
  list-style: none;
}

.inline-list li {
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-accent);
  font-weight: 700;
}

.cta-panel {
  border-radius: 24px;
  padding: 2rem;
  background: linear-gradient(135deg, #1f3a5f, #2c4f7d);
  color: #ffffff;
  box-shadow: 0 18px 42px rgba(17, 24, 39, 0.1);
}

.cta-panel h2,
.cta-panel p,
.cta-panel .eyebrow {
  color: #ffffff;
}

.notice-list {
  display: grid;
  gap: 0.85rem;
  padding-left: 0;
  list-style: none;
}

.notice-list li {
  position: relative;
  padding-left: 1.5rem;
}

.notice-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

.price-table {
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-white);
}

.rating {
  display: inline-flex;
  gap: 0.2rem;
  color: #f59e0b;
  font-size: 1rem;
}

.blog-list {
  display: grid;
  gap: 1.5rem;
}

.blog-card {
  display: grid;
  gap: 1.1rem;
  grid-template-columns: 280px minmax(0, 1fr);
  align-items: stretch;
  padding: 1rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.blog-card .image-frame {
  min-height: 100%;
}

.map-embed {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  min-height: 260px;
  background: rgba(255, 255, 255, 0.06);
}

.map-embed iframe {
  width: 100%;
  height: 100%;
  min-height: 260px;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(215, 223, 235, 0.9);
}

.site-header-inner {
  min-height: var(--header-height);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1.25rem;
  align-items: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  font-family: var(--font-base);
  font-weight: 700;
  color: var(--color-primary);
  min-width: 0;
}

.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  overflow: hidden;
  flex: 0 0 auto;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-line);
}

.brand-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-text {
  display: grid;
  gap: 0.08rem;
  line-height: 1.1;
}

.brand-text strong {
  font-size: 1rem;
  color: var(--color-primary);
}

.brand-text span {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

.site-nav-wrap {
  display: flex;
  justify-content: center;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-nav li {
  position: relative;
}

.site-nav a,
.site-nav button.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 42px;
  padding: 0.8rem 0.95rem;
  border-radius: 999px;
  color: var(--color-text);
  font-weight: 700;
  font-size: 0.96rem;
}

.site-nav a:hover,
.site-nav button.nav-link:hover,
.site-nav li.active > a,
.site-nav li.active > button.nav-link {
  color: var(--color-accent);
  background: rgba(37, 99, 235, 0.08);
}

.nav-cta .btn {
  min-height: 46px;
  padding-inline: 1.15rem;
}

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  border: 1px solid var(--color-line);
  color: var(--color-primary);
  background: var(--color-white);
  align-items: center;
  justify-content: center;
  box-shadow: none;
}

.nav-toggle-bars,
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  position: relative;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle-bars::before {
  position: absolute;
  top: -6px;
  left: 0;
}

.nav-toggle-bars::after {
  position: absolute;
  top: 6px;
  left: 0;
}

.nav-open .nav-toggle-bars {
  transform: rotate(45deg);
}

.nav-open .nav-toggle-bars::before {
  transform: translateY(6px);
  opacity: 0;
}

.nav-open .nav-toggle-bars::after {
  transform: translateY(-6px) rotate(-90deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  left: 0;
  min-width: 220px;
  padding: 0.55rem;
  border: 1px solid var(--color-line);
  border-radius: 18px;
  background: var(--color-white);
  box-shadow: var(--shadow-md);
  display: none;
  z-index: 30;
}

.dropdown-menu a {
  width: 100%;
  border-radius: 12px;
}

.has-dropdown:hover .dropdown-menu,
.has-dropdown.open .dropdown-menu {
  display: block;
}

.site-footer {
  background: linear-gradient(180deg, #1f3a5f 0%, #162b47 100%);
  color: var(--color-white);
  padding: 4.5rem 0 0;
  margin-top: 0;
}

.site-footer .brand {
  color: var(--color-white);
}

.site-footer .brand-text strong,
.site-footer .brand-text span {
  color: var(--color-white);
}

.site-footer *::selection {
  background: rgba(255, 255, 255, 0.2);
}

.site-footer a {
  color: rgba(255, 255, 255, 0.9);
}

.site-footer a:hover {
  color: var(--color-white);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(280px, 1.15fr) minmax(140px, 0.55fr) minmax(150px, 0.6fr) minmax(300px, 1fr);
  gap: 2.2rem;
  align-items: start;
}

.footer-brand {
  max-width: 340px;
}

.footer-title {
  color: var(--color-white);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.footer-links,
.footer-contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.footer-links li,
.footer-contact-list li,
.footer-hours li,
.footer-brand p {
  color: rgba(255, 255, 255, 0.8);
}

.footer-contact-list strong {
  color: var(--color-white);
}

.footer-map {
  margin-top: 1rem;
}

.footer-hours {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  gap: 0.4rem;
}

.footer-bottom {
  margin-top: 3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.12);
}

.footer-bottom-inner {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 1rem 0;
}

.footer-bottom p,
.footer-bottom a {
  color: rgba(255, 255, 255, 0.78);
  margin: 0;
}

.active {
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.table-card,
.form-card,
.info-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-line);
  background: var(--color-bg-soft);
  padding: 1.5rem;
}

.review-quote {
  font-size: 1.08rem;
  color: var(--color-text);
}

.review-author {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-top: 1rem;
}

.avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  overflow: hidden;
  background: var(--color-bg-muted);
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  padding: 0;
  list-style: none;
}

.pill-list li {
  margin: 0;
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  background: var(--color-white);
  color: var(--color-text);
  border: 1px solid var(--color-line);
  font-weight: 700;
  font-size: 0.92rem;
}

.alert {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
}

.alert-info {
  background: rgba(37, 99, 235, 0.08);
  border-color: rgba(37, 99, 235, 0.16);
  color: var(--color-primary);
}

.alert-success {
  background: rgba(34, 197, 94, 0.1);
  border-color: rgba(34, 197, 94, 0.16);
  color: #166534;
}

.alert-warning {
  background: rgba(217, 119, 6, 0.1);
  border-color: rgba(217, 119, 6, 0.16);
  color: #92400e;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.desktop-only {
  display: block;
}

.mobile-only {
  display: none;
}

@media (max-width: 1100px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .stats-grid,
  .process-steps,
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .blog-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 960px) {
  .site-header-inner {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .site-nav-wrap {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    padding: 0 1rem 1rem;
  }

  .nav-open .site-nav-wrap {
    display: block;
  }

  .site-nav {
    display: grid;
    gap: 0.75rem;
    background: var(--color-white);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    padding: 1rem;
    box-shadow: var(--shadow-md);
  }

  .site-nav ul {
    display: grid;
    gap: 0.25rem;
  }

  .site-nav a,
  .site-nav button.nav-link {
    width: 100%;
    justify-content: space-between;
    border-radius: 12px;
  }

  .nav-cta {
    width: 100%;
  }

  .nav-cta .btn {
    width: 100%;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .dropdown-menu {
    position: static;
    display: none;
    min-width: auto;
    margin-top: 0.4rem;
    box-shadow: none;
    border-radius: 14px;
    background: var(--color-bg-soft);
  }

  .has-dropdown.open .dropdown-menu {
    display: block;
  }

  .split,
  .split-reverse,
  .grid-3,
  .grid-2,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 86vh;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 72px;
  }

  body {
    line-height: 1.6;
  }

  .section {
    padding: 4.25rem 0;
  }

  .section-lg {
    padding: 5rem 0;
  }

  .container,
  .container-narrow {
    width: min(100% - 1.25rem, var(--container));
  }

  .stats-grid,
  .process-steps,
  .grid-4,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-actions,
  .cluster,
  .filter-tabs,
  .tab-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn,
  button.btn,
  input.btn {
    width: 100%;
  }

  .desktop-only {
    display: none;
  }

  .mobile-only {
    display: block;
  }

  .comparison-slider {
    min-height: 320px;
  }

  .cta-panel,
  .card,
  .card-dark,
  .card-light,
  .step-card,
  .table-card,
  .form-card,
  .info-card {
    padding: 1.25rem;
  }
}
.hero-metrics {
  display: flex;
  gap: 2rem;
}
/* Hero 按钮文字统一白色 */
.hero .btn {
  color: #ffffff !important;
}

.hero .btn:hover {
  color: #ffffff !important;
}
/* Hero metric cards */
.hero .metric {
  background: #ffffff;
  border: 1px solid rgba(23, 32, 51, 0.08);
  backdrop-filter: none;
  box-shadow: 0 10px 30px rgba(17, 24, 39, 0.12);
}

.hero .metric-value {
  color: #172033;
}

.hero .metric-label {
  color: #6b7280;
}
.custom-upload input {
  display: none;
}

.custom-upload span {
  display: inline-block;
  padding: 10px 16px;
  background: #0b3d91;
  color: #fff;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
}

.custom-upload span:hover {
  background: #092f6b;
}