/* V7 Design System — HTML 组件与样式一同维护，不依赖 AI 猜类名 */
:root {
  --bg: #080e1b;
  --surface: #0d1729;
  --surface2: #111f35;
  --panel: #14233a;
  --text: #eaf1ff;
  --muted: #9aabc5;
  --line: rgba(149, 176, 220, .16);
  --primary: #498dff;
  --accent: #2dd7dc;
  --gradient: linear-gradient(115deg, #568cff, #26d2dd);
  --shadow: 0 22px 70px rgba(0, 0, 0, .25);
  --radius: 22px;
  --max: 1240px
}

html[data-theme="light"] {
  --bg: #f6f9ff;
  --surface: #fff;
  --surface2: #ecf3ff;
  --panel: #fff;
  --text: #15223d;
  --muted: #5b6d88;
  --line: rgba(44, 75, 129, .13);
  --shadow: 0 22px 65px rgba(46, 81, 135, .11)
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden
}

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

img,
svg {
  max-width: 100%
}

img {
  display: block
}

button {
  font: inherit;
  cursor: pointer
}

h1,
h2,
h3,
p {
  margin-top: 0
}

h1,
h2,
h3 {
  line-height: 1.22;
  letter-spacing: -.035em
}

p {
  color: var(--muted)
}

.container {
  width: min(var(--max), calc(100% - 56px));
  margin-inline: auto
}

.narrow {
  max-width: 880px
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 89%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: box-shadow .3s, background .3s
}

.site-header.scrolled {
  box-shadow: 0 10px 35px rgba(0, 0, 0, .12)
}

.nav-wrap {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -.025em;
  white-space: nowrap
}

.brand-mark {
  width: 43px;
  height: 43px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--gradient);
  box-shadow: 0 8px 25px rgba(49, 150, 236, .25);
  font-size: 26px
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 5px
}

.nav-link {
  padding: 10px 15px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  transition: background .2s, color .2s
}

.nav-link:hover,
.nav-link.active {
  background: var(--surface2);
  color: var(--text)
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 750;
  line-height: 1.3;
  border: 1px solid transparent;
  transition: transform .25s, box-shadow .25s, background .25s
}

.btn:hover {
  transform: translateY(-3px)
}

.btn-primary {
  color: white;
  background: var(--gradient);
  box-shadow: 0 12px 32px rgba(50, 137, 234, .22)
}

.btn-primary:hover {
  box-shadow: 0 18px 42px rgba(50, 137, 234, .33)
}

.btn-ghost,
.btn-outline {
  border-color: var(--line);
  background: var(--surface);
  color: var(--text)
}

.btn-ghost:hover,
.btn-outline:hover {
  border-color: var(--primary)
}

.btn-large {
  min-height: 56px;
  padding: 16px 28px
}

.nav-cta {
  margin-left: 15px
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 10px
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px;
  background: var(--text);
  transition: transform .25s
}

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(ellipse at 15% 35%, rgba(60, 119, 240, .16), transparent 45%), radial-gradient(ellipse at 90% 50%, rgba(26, 198, 211, .11), transparent 40%), linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: auto, auto, 80px 80px, 80px 80px;
  mask-image: linear-gradient(to bottom, black, transparent 95%)
}

.hero-grid {
  min-height: 690px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  align-items: center;
  gap: 65px;
  padding-block: 100px 115px
}

.hero-copy {
  position: relative;
  z-index: 1
}

.hero-pill,
.eyebrow {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .13em;
  color: var(--accent);
  text-transform: uppercase
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  max-width: 100%;
  padding: 9px 16px;
  border: 1px solid rgba(51, 199, 218, .3);
  border-radius: 999px;
  background: rgba(40, 155, 190, .09);
  margin-bottom: 28px;
  letter-spacing: .03em
}

.pill-dot,
.chip-dot,
.meta-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent)
}

.hero h1 {
  font-size: clamp(42px, 5vw, 72px);
  line-height: 1.12;
  letter-spacing: -.055em;
  margin-bottom: 26px;
  font-weight: 850;
  overflow-wrap: anywhere
}

.hero-description {
  font-size: 18px;
  line-height: 1.95;
  max-width: 600px;
  margin-bottom: 33px
}

.hero-actions {
  display: flex;
  gap: 15px;
  flex-wrap: wrap
}

.hero-meta {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  margin-top: 38px;
  font-size: 13px;
  color: var(--muted)
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 9px
}

.meta-dot {
  width: 6px;
  height: 6px
}

.hero-visual {
  position: relative;
  min-width: 0;
  animation: float 7s ease-in-out infinite
}

.visual-halo {
  position: absolute;
  inset: 10%;
  background: var(--gradient);
  filter: blur(95px);
  opacity: .16;
  pointer-events: none
}

.visual-frame {
  position: relative;
  border: 1px solid rgba(130, 181, 230, .23);
  border-radius: 30px;
  overflow: hidden;
  box-shadow: 0 35px 90px rgba(0, 0, 0, .3);
  transform: perspective(1200px) rotateY(-4deg)
}

.visual-frame img {
  width: 100%;
  height: auto;
  aspect-ratio: 800/580;
  object-fit: cover
}

.float-chip {
  position: absolute;
  z-index: 2;
  padding: 12px 17px;
  background: #101c32;
  color: #f4f8ff;
  border: 1px solid rgba(107, 156, 225, .32);
  border-radius: 16px;
  font-size: 13px;
  font-weight: 700;
  box-shadow: var(--shadow)
}

.chip-top {
  top: -24px;
  left: -30px
}

.chip-bottom {
  bottom: 18px;
  right: -25px
}

.section {
  padding: 108px 0
}

.section-soft {
  background: var(--surface)
}

.section-heading {
  max-width: 690px;
  margin: 0 auto 48px;
  text-align: center
}

.section-heading h2,
.split-content h2,
.contact-layout h2 {
  font-size: clamp(30px, 3.5vw, 47px);
  margin: 16px 0 20px
}

.section-heading p {
  font-size: 16px
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px
}

.info-card {
  position: relative;
  min-width: 0;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 34px 30px 30px;
  box-shadow: 0 7px 25px rgba(0, 0, 0, .025);
  transition: transform .3s, border-color .3s, box-shadow .3s;
  overflow: hidden
}

.info-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity .3s
}

.info-card:hover {
  transform: translateY(-8px);
  border-color: rgba(76, 157, 237, .45);
  box-shadow: var(--shadow)
}

.info-card:hover::before {
  opacity: 1
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 17px;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: rgba(46, 174, 214, .12);
  margin-bottom: 25px
}

.card-index {
  position: absolute;
  right: 28px;
  top: 26px;
  color: var(--muted);
  opacity: .38;
  font-size: 12px;
  font-weight: 800
}

.info-card h3 {
  font-size: 21px;
  margin-bottom: 13px
}

.info-card p {
  font-size: 14px;
  line-height: 1.95;
  margin: 0 0 18px
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  color: var(--primary);
  font-weight: 800
}

.text-link:hover {
  gap: 15px
}

.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 75px;
  align-items: center
}

.split-art {
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--surface2);
  box-shadow: var(--shadow)
}

.split-art img {
  width: 100%;
  border-radius: 19px;
  aspect-ratio: 800/580;
  object-fit: cover
}

.split-content p {
  font-size: 16px;
  line-height: 2
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 26px 0 30px
}

.check-list li {
  padding: 10px 0 10px 30px;
  position: relative;
  color: var(--text);
  font-weight: 600
}

.check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent)
}

.section-actions {
  text-align: center;
  margin-top: 36px
}

.faq-layout {
  display: grid;
  grid-template-columns: .75fr 1.25fr;
  gap: 65px
}

.faq-layout .section-heading {
  text-align: left;
  margin: 0
}

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

.faq-item {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  overflow: hidden
}

.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  list-style: none;
  cursor: pointer;
  padding: 21px 24px;
  font-weight: 700
}

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

.faq-plus {
  font-size: 23px;
  color: var(--primary);
  transition: transform .2s
}

.faq-item[open] .faq-plus {
  transform: rotate(45deg)
}

.faq-answer {
  padding: 0 24px 23px;
  color: var(--muted);
  line-height: 1.95
}

.subhero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: radial-gradient(ellipse at 85% 25%, rgba(38, 171, 219, .13), transparent 40%), radial-gradient(ellipse at 10% 100%, rgba(72, 109, 240, .14), transparent 45%), var(--surface)
}

.subhero-inner {
  min-height: 350px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding-block: 75px
}

.subhero h1 {
  font-size: clamp(36px, 4.8vw, 64px);
  margin: 16px 0 20px;
  max-width: 850px
}

.subhero p {
  font-size: 17px;
  max-width: 760px;
  margin: 0
}

.breadcrumb {
  display: flex;
  gap: 11px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
  margin-top: 15px
}

.breadcrumb a:hover {
  color: var(--primary)
}

.subhero-decoration {
  font-size: 180px;
  line-height: 1;
  color: var(--primary);
  opacity: .11;
  transform: rotate(-20deg)
}

.article-block {
  margin: 0 0 35px
}

.article-block h2 {
  font-size: 27px;
  margin-bottom: 18px
}

.article-block p,
.article-body>p {
  line-height: 2.05;
  font-size: 16px
}

.article-follow {
  padding-top: 80px
}

.contact-layout {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 70px;
  align-items: start
}

.contact-layout .card-grid {
  grid-template-columns: repeat(2, 1fr);
  margin-top: 35px
}

.contact-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 44px;
  box-shadow: var(--shadow)
}

.panel-icon {
  font-size: 35px;
  margin-bottom: 25px
}

.contact-panel h3 {
  font-size: 25px
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 25px
}

.news-card {
  overflow: hidden;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: var(--panel);
  transition: transform .3s, box-shadow .3s
}

.news-card:hover {
  transform: translateY(-7px);
  box-shadow: var(--shadow)
}

.news-card-art {
  height: 175px;
  position: relative;
  overflow: hidden;
  padding: 22px;
  background: radial-gradient(circle at 80% 80%, rgba(46, 207, 215, .35), transparent 40%), linear-gradient(135deg, #15294b, #0b172a);
  color: #9ec5e8;
  font-size: 12px;
  letter-spacing: .12em;
  font-weight: 800
}

.news-orb {
  position: absolute;
  width: 145px;
  height: 145px;
  border: 2px solid rgba(77, 180, 240, .3);
  border-radius: 35px;
  transform: rotate(35deg);
  right: 25px;
  top: 25px;
  box-shadow: 0 0 50px rgba(47, 158, 229, .17)
}

.news-card-body {
  padding: 27px
}

.article-tag {
  font-size: 12px;
  color: var(--accent);
  font-weight: 800
}

.news-card h2 {
  font-size: 21px;
  margin: 12px 0
}

.news-card p {
  font-size: 14px;
  line-height: 1.9
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 270px;
  gap: 65px;
  align-items: start
}

.article-intro {
  font-size: 20px;
  line-height: 1.85;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 30px
}

.article-cover {
  border-radius: 25px;
  overflow: hidden;
  margin-bottom: 45px
}

.article-cover img {
  width: 100%;
  max-height: 410px;
  object-fit: cover
}

.article-sidebar {
  position: sticky;
  top: 115px
}

.sidebar-panel {
  background: var(--panel);
  padding: 28px;
  border-radius: 20px;
  border: 1px solid var(--line)
}

.sidebar-panel h3 {
  font-size: 19px;
  margin: 14px 0
}

.sidebar-panel>a {
  display: block;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  color: var(--muted)
}

.sidebar-panel>a:hover {
  color: var(--primary)
}

.article-note {
  padding: 20px 24px;
  border-left: 3px solid var(--primary);
  background: var(--surface2);
  border-radius: 0 12px 12px 0;
  color: var(--muted);
  font-size: 14px
}

.cta-section {
  padding: 40px 0 105px
}

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 55px 65px;
  border-radius: 30px;
  background: linear-gradient(115deg, #2150aa, #168da7);
  color: white;
  box-shadow: 0 30px 70px rgba(16, 85, 160, .22)
}

.cta-panel h2 {
  font-size: clamp(25px, 3vw, 38px);
  margin: 12px 0
}

.cta-panel p {
  color: rgba(255, 255, 255, .8);
  margin: 0
}

.cta-panel .eyebrow {
  color: #b1efff
}

.btn-white {
  background: #fff;
  color: #17569e;
  white-space: nowrap
}

.site-footer {
  background: #080d19;
  color: #e7efff;
  border-top: 1px solid rgba(160, 180, 210, .13)
}

.footer-top {
  padding: 70px 0 55px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 70px
}

.footer-description {
  max-width: 390px;
  font-size: 14px;
  line-height: 2;
  color: #8f9db6;
  margin-top: 23px
}

.footer-links {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px
}

.footer-links strong {
  margin-bottom: 8px
}

.footer-links a {
  font-size: 14px;
  color: #8f9db6
}

.footer-links a:hover {
  color: #3dd1e6
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  border-top: 1px solid rgba(160, 180, 210, .13);
  padding: 25px 0;
  color: #8f9db6;
  font-size: 13px
}

.back-top {
  position: fixed;
  bottom: 26px;
  right: 26px;
  z-index: 50;
  width: 47px;
  height: 47px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--gradient);
  color: white;
  font-size: 23px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(15px);
  transition: opacity .25s, transform .25s;
  box-shadow: var(--shadow)
}

.back-top.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0)
}

.reveal {
  opacity: 1;
  transform: none
}

@media(prefers-reduced-motion:no-preference) {
  .js-ready .reveal {
    opacity: 0;
    transform: translateY(23px);
    transition: opacity .65s ease, transform .65s ease
  }

  .js-ready .reveal.in {
    opacity: 1;
    transform: translateY(0)
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0)
  }

  50% {
    transform: translateY(-12px)
  }
}

@media(max-width:1100px) {
  .nav-link {
    padding: 9px 10px
  }

  .hero-grid {
    gap: 30px
  }

  .hero h1 {
    font-size: clamp(38px, 5vw, 60px)
  }

  .float-chip {
    display: none
  }

  .split-section {
    gap: 40px
  }

  .article-grid {
    grid-template-columns: repeat(2, 1fr)
  }
}

@media(max-width:820px) {
  .container {
    width: min(var(--max), calc(100% - 36px))
  }

  .nav-wrap {
    min-height: 70px
  }

  .nav-toggle {
    display: block
  }

  .nav-menu {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow)
  }

  .nav-menu.open {
    display: flex
  }

  .nav-link {
    padding: 12px 20px
  }

  .nav-cta {
    margin: 8px 0 0
  }

  .hero-grid {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-block: 80px 90px;
    gap: 70px
  }

  .hero h1 {
    max-width: 750px
  }

  .hero-visual {
    max-width: 650px;
    width: 100%;
    margin-inline: auto
  }

  .section {
    padding: 75px 0
  }

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

  .split-section,
  .faq-layout,
  .contact-layout,
  .article-layout {
    grid-template-columns: 1fr
  }

  .faq-layout {
    gap: 30px
  }

  .article-sidebar {
    position: static
  }

  .footer-top {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 30px
  }

  .subhero-inner {
    min-height: 280px
  }

  .subhero-decoration {
    display: none
  }

  .cta-panel {
    padding: 40px
  }

  .contact-layout .card-grid {
    grid-template-columns: repeat(2, 1fr)
  }
}

@media(max-width:560px) {
  .container {
    width: calc(100% - 32px)
  }

  .brand {
    font-size: 17px
  }

  .brand-mark {
    width: 37px;
    height: 37px
  }

  .hero-grid {
    padding-block: 62px 75px;
    gap: 55px
  }

  .hero h1 {
    font-size: clamp(34px, 10vw, 48px)
  }

  .hero-description {
    font-size: 16px
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch
  }

  .hero-actions .btn {
    width: 100%
  }

  .hero-meta {
    gap: 12px
  }

  .section {
    padding: 65px 0
  }

  .section-heading {
    margin-bottom: 30px
  }

  .section-heading h2,
  .split-content h2 {
    font-size: 30px
  }

  .card-grid,
  .article-grid,
  .contact-layout .card-grid {
    grid-template-columns: 1fr
  }

  .info-card {
    padding: 28px
  }

  .subhero-inner {
    padding-block: 65px
  }

  .subhero h1 {
    font-size: 36px
  }

  .subhero p {
    font-size: 15px
  }

  .cta-section {
    padding: 15px 0 65px
  }

  .cta-panel {
    padding: 32px 25px;
    flex-direction: column;
    align-items: flex-start
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 35px
  }

  .footer-top>div:first-child {
    grid-column: 1/-1
  }

  .footer-bottom {
    flex-direction: column
  }

  .contact-panel {
    padding: 30px
  }

  .article-intro {
    font-size: 18px
  }
}

@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior: auto
  }

  .hero-visual {
    animation: none
  }

  *,
  *::before,
  *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important
  }
}



/* V8: theme palettes, stronger hierarchy, readable detail sections */
html[data-palette="emerald"] {
  --primary: #18b7ab;
  --accent: #70e1c2;
  --gradient: linear-gradient(115deg, #17acbb, #53d6b6)
}

html[data-palette="violet"] {
  --primary: #9178ff;
  --accent: #56c9f4;
  --gradient: linear-gradient(115deg, #9c72f5, #36c9f2)
}

html[data-palette="amber"] {
  --primary: #eaa35e;
  --accent: #ffd18a;
  --gradient: linear-gradient(115deg, #e69550, #f3c27e)
}

html[data-theme="light"][data-palette="emerald"] {
  --primary: #087e70;
  --accent: #158e7c;
  --gradient: linear-gradient(115deg, #17a89f, #21988b)
}

html[data-theme="light"][data-palette="violet"] {
  --primary: #6758c9;
  --accent: #6552c3;
  --gradient: linear-gradient(115deg, #7c68d3, #5c80db)
}

html[data-theme="light"][data-palette="amber"] {
  --primary: #b66826;
  --accent: #bd7136;
  --gradient: linear-gradient(115deg, #c37b34, #df9851)
}

.gradient-text {
  color: var(--primary);
  background: var(--gradient);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px
}

.nav-menu a:focus-visible,
.btn:focus-visible {
  outline-offset: 4px
}

.article-block {
  padding: 22px 0 25px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 110px
}

.article-block h2 {
  font-size: clamp(23px, 2.4vw, 32px);
  margin: 4px 0 19px
}

.article-block h3 {
  font-size: 23px;
  margin: 5px 0 18px
}

.article-block p {
  font-size: 16px;
  line-height: 2;
  margin-bottom: 15px
}

.article-block:last-child {
  border-bottom: 0
}

.article-return {
  margin-top: 28px
}

.step-list {
  display: grid;
  gap: 18px;
  margin-top: 26px
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 21px
}

.step-badge {
  flex: none;
  display: grid;
  place-items: center;
  width: 43px;
  height: 43px;
  border-radius: 13px;
  background: var(--gradient);
  font-weight: 800;
  color: white
}

.step-item h3 {
  font-size: 18px;
  margin: 1px 0 9px
}

.step-item p {
  font-size: 14px;
  line-height: 1.85;
  margin: 0
}

.takeaway-panel {
  margin: 35px 0;
  padding: 30px 34px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--surface2)
}

.takeaway-panel h2 {
  font-size: 24px;
  margin-bottom: 12px
}

.takeaway-panel .check-list {
  margin: 0
}

.topic-block {
  padding: 30px 0 34px
}

.contact-layout>.reveal>.card-grid {
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 25px
}

.contact-layout>.reveal>.card-grid>.info-card {
  padding: 22px 25px
}

.contact-layout>.reveal>.card-grid>.info-card .card-icon {
  display: none
}

.contact-layout>.reveal>.card-grid>.info-card h3 {
  font-size: 18px
}

.contact-panel {
  align-self: start;
  word-break: break-word
}

.contact-panel .btn {
  max-width: 100%;
  overflow-wrap: anywhere;
  white-space: normal
}

.article-body {
  min-width: 0
}

html[data-theme="light"] .float-chip {
  color: #effaff
}

html[data-theme="light"] .hero::before {
  opacity: .65
}

@media(max-width:820px) {
  .contact-layout>.reveal>.card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr))
  }

  .hero-visual {
    animation: none
  }
}

@media(max-width:560px) {
  .contact-layout>.reveal>.card-grid {
    grid-template-columns: 1fr
  }

  .step-item {
    padding: 17px
  }

  .takeaway-panel {
    padding: 24px
  }

  .article-block {
    padding: 18px 0
  }
}



/* V9 排版调整：内容不挤作一团，结构按原 V3.1 的留白/图片/卡片规范落地 */
:root {
  --max: 1280px;
  --reading: 760px;
  --space-section: clamp(94px, 9vw, 146px)
}

body {
  font-family: Inter, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.88
}

.container {
  width: min(var(--max), calc(100% - 80px))
}

h1,
h2,
h3 {
  letter-spacing: -.025em;
  line-height: 1.30
}

p {
  line-height: 1.95
}

.site-header .nav-wrap {
  min-height: 92px;
  gap: 42px
}

.nav-menu {
  gap: 11px
}

.nav-link {
  padding: 12px 18px;
  font-size: 15px
}

.nav-cta {
  margin-left: 19px;
  padding: 15px 25px
}

.hero-grid {
  min-height: 740px;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
  gap: clamp(50px, 5.5vw, 98px);
  padding-block: 112px 132px
}

.hero-pill {
  margin-bottom: 32px
}

.hero h1 {
  font-size: clamp(44px, 4.6vw, 70px);
  line-height: 1.22;
  letter-spacing: -.037em;
  margin-bottom: 32px;
  text-wrap: balance
}

.hero-description {
  font-size: 18px;
  line-height: 2.05;
  max-width: 550px;
  margin-bottom: 42px
}

.hero-actions {
  gap: 18px
}

.hero-meta {
  gap: 26px;
  margin-top: 43px;
  line-height: 1.8
}

.visual-frame {
  border-radius: 30px
}

.visual-frame img {
  height: auto;
  aspect-ratio: 1200/850;
  object-fit: cover;
  background: var(--surface2)
}

.section {
  padding: var(--space-section) 0
}

.section-heading {
  max-width: 790px;
  margin: 0 auto 63px
}

.section-heading .eyebrow {
  display: inline-block;
  margin-bottom: 11px
}

.section-heading h2 {
  font-size: clamp(31px, 3.45vw, 47px);
  margin: 14px 0 25px;
  line-height: 1.32
}

.section-heading p {
  font-size: 17px;
  line-height: 2;
  max-width: 680px;
  margin-inline: auto
}

.card-grid {
  gap: 30px;
  align-items: stretch
}

.info-card {
  padding: 42px 36px 39px;
  border-radius: 25px
}

.info-card .card-icon {
  margin-bottom: 30px
}

.info-card h3 {
  font-size: 21px;
  line-height: 1.48;
  margin: 0 0 19px
}

.info-card p {
  font-size: 15px;
  line-height: 2.05;
  margin-bottom: 22px
}

.info-card .text-link {
  margin-top: 8px
}

.split-section {
  gap: clamp(55px, 6vw, 110px)
}

.split-content .eyebrow {
  display: inline-block;
  margin-bottom: 18px
}

.split-content h2 {
  line-height: 1.42;
  margin-bottom: 26px
}

.split-content p {
  font-size: 16px;
  line-height: 2.12;
  margin: 0 0 24px
}

.split-art {
  padding: 14px
}

.split-art img {
  aspect-ratio: 4/3;
  object-fit: cover;
  background: var(--surface2)
}

.check-list {
  margin: 33px 0 40px
}

.check-list li {
  padding: 12px 0 12px 30px;
  line-height: 1.75
}

.faq-layout {
  gap: clamp(55px, 6vw, 105px)
}

.faq-layout .section-heading {
  max-width: 490px
}

.faq-item summary {
  padding: 25px 28px;
  line-height: 1.65
}

.faq-answer {
  padding: 0 28px 29px;
  line-height: 2.08
}

.subhero-inner {
  min-height: 415px;
  padding-block: 92px
}

.subhero h1 {
  line-height: 1.28;
  margin: 23px 0 25px
}

.subhero p {
  line-height: 2.02
}

.article-grid {
  gap: 30px
}

.news-card-art {
  padding: 0;
  height: 195px;
  background: var(--surface2)
}

.news-card-art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover
}

.news-card-art::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(0, 0, 0, .25), transparent 56%)
}

.news-card-art .photo-kicker {
  position: absolute;
  z-index: 2;
  top: 18px;
  left: 20px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(6, 14, 27, .72);
  color: #f1f6ff;
  font-size: 12px;
  letter-spacing: .08em
}

.news-card-body {
  padding: 31px 30px 34px
}

.news-card h2 {
  line-height: 1.5;
  margin: 18px 0 18px
}

.news-card p {
  line-height: 2.02;
  margin-bottom: 22px
}

.article-layout {
  gap: 80px
}

.article-body .article-intro {
  font-size: 19px;
  line-height: 2.08;
  margin-bottom: 40px
}

.article-cover {
  margin-bottom: 54px
}

.article-cover img {
  width: 100%;
  height: auto;
  aspect-ratio: 5/3;
  object-fit: cover
}

.article-block {
  padding: 35px 0 40px;
  margin: 0 0 22px
}

.article-block h2,
.article-block h3 {
  line-height: 1.4;
  margin-bottom: 23px
}

.article-subheading {
  font-size: 20px;
  font-weight: 650;
  color: var(--text);
  margin: 10px 0 20px
}

.article-block p {
  font-size: 16px;
  line-height: 2.15;
  margin-bottom: 22px
}

.article-sidebar .sidebar-panel {
  padding: 32px
}

.contact-layout {
  gap: 90px
}

.contact-layout>div>p {
  line-height: 2.1;
  margin: 24px 0 35px
}

.cta-section {
  padding: 35px 0 125px
}

.cta-panel {
  padding: 66px 74px;
  gap: 65px
}

.cta-panel h2 {
  line-height: 1.35;
  margin: 20px 0
}

.cta-panel p {
  font-size: 16px;
  line-height: 2
}

.recommendation-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 45px;
  padding: 46px 52px;
  border: 1px solid var(--line);
  border-radius: 25px;
  background: var(--panel)
}

.recommendation-strip h2 {
  font-size: clamp(26px, 3vw, 36px);
  margin: 14px 0 17px
}

.recommendation-strip p {
  margin: 0;
  max-width: 630px;
  line-height: 2.05
}

.recommendation-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end
}

.footer-top {
  padding-block: 88px 72px;
  gap: 85px
}

.footer-description {
  margin-top: 28px;
  line-height: 2.1
}

@media(max-width:1120px) {
  .container {
    width: calc(100% - 64px)
  }

  .nav-menu {
    gap: 1px
  }

  .nav-link {
    padding: 10px 12px;
    font-size: 14px
  }

  .hero-grid {
    gap: 42px
  }

  .hero h1 {
    font-size: clamp(40px, 4.8vw, 62px)
  }

  .recommendation-strip {
    flex-direction: column;
    align-items: flex-start
  }

  .recommendation-links {
    justify-content: flex-start
  }
}

@media(max-width:820px) {
  .container {
    width: calc(100% - 42px)
  }

  .nav-wrap {
    min-height: 74px !important
  }

  .nav-menu {
    gap: 3px
  }

  .nav-link {
    padding: 13px 20px
  }

  .hero-grid {
    grid-template-columns: 1fr;
    padding-block: 86px 105px;
    gap: 72px;
    min-height: auto
  }

  .hero-description {
    max-width: 700px
  }

  .hero-visual {
    max-width: 740px
  }

  .section {
    padding: 88px 0
  }

  .card-grid {
    gap: 23px
  }

  .info-card {
    padding: 34px 29px
  }

  .split-section,
  .faq-layout {
    gap: 48px
  }

  .footer-top {
    gap: 35px
  }

  .cta-panel {
    padding: 48px
  }
}

@media(max-width:560px) {
  .container {
    width: calc(100% - 36px)
  }

  .hero-grid {
    padding-block: 72px 78px;
    gap: 54px
  }

  .hero h1 {
    font-size: clamp(35px, 9.5vw, 49px);
    margin-bottom: 26px
  }

  .hero-pill {
    margin-bottom: 25px
  }

  .hero-description {
    font-size: 16px;
    line-height: 2;
    margin-bottom: 34px
  }

  .hero-actions {
    gap: 14px
  }

  .hero-meta {
    margin-top: 31px;
    gap: 15px
  }

  .section {
    padding: 76px 0
  }

  .section-heading {
    margin-bottom: 42px
  }

  .section-heading h2 {
    font-size: 29px;
    margin: 13px 0 20px
  }

  .section-heading p {
    font-size: 15px
  }

  .info-card {
    padding: 34px 29px
  }

  .split-content h2 {
    font-size: 29px
  }

  .split-content p {
    font-size: 15px
  }

  .article-grid {
    gap: 22px
  }

  .article-block {
    padding: 28px 0
  }

  .subhero-inner {
    min-height: 315px;
    padding-block: 77px
  }

  .subhero h1 {
    font-size: 36px
  }

  .cta-panel {
    padding: 36px 28px;
    gap: 25px
  }

  .recommendation-strip {
    padding: 31px 25px
  }

  .recommendation-links {
    width: 100%;
    flex-direction: column
  }

  .recommendation-links .btn {
    width: 100%
  }

  .footer-top {
    padding-block: 69px 55px
  }

  .faq-layout {
    gap: 34px
  }
}

html[data-palette="coral"] {
  --primary: #ff7050;
  --accent: #ffba73;
  --gradient: linear-gradient(120deg, #ff514f, #ff983c)
}

html[data-palette="rose"] {
  --primary: #da67ff;
  --accent: #37cadc;
  --gradient: linear-gradient(115deg, #a05ff5, #e949a1)
}

html[data-palette="mint"] {
  --primary: #19b8a1;
  --accent: #50d6c3;
  --gradient: linear-gradient(115deg, #14bda0, #42bcc9)
}

html[data-theme="light"][data-palette="coral"] {
  --primary: #bf4b2f;
  --accent: #e47b46;
  --gradient: linear-gradient(120deg, #e35a40, #ee9850)
}

html[data-theme="light"][data-palette="rose"] {
  --primary: #9346b7;
  --accent: #b45b9a;
  --gradient: linear-gradient(120deg, #a35bdd, #d96999)
}

html[data-theme="light"][data-palette="mint"] {
  --primary: #087e72;
  --accent: #168b86;
  --gradient: linear-gradient(120deg, #0a9a87, #2aada7)
}

html[data-nav="underline"] .nav-link {
  border-radius: 0;
  background: transparent;
  position: relative
}

html[data-nav="underline"] .nav-link.active::after,
html[data-nav="underline"] .nav-link:hover::after {
  content: "";
  height: 3px;
  position: absolute;
  bottom: 0;
  left: 27%;
  right: 27%;
  border-radius: 3px;
  background: var(--gradient)
}

html[data-nav="minimal"] .nav-link {
  background: transparent;
  border-radius: 10px
}

html[data-nav="minimal"] .nav-link.active {
  color: var(--primary)
}

html[data-card="glass"] .info-card {
  background: color-mix(in srgb, var(--panel) 72%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-color: color-mix(in srgb, var(--primary) 19%, var(--line))
}

html[data-card="outline"] .info-card {
  background: transparent;
  border-color: color-mix(in srgb, var(--primary) 30%, var(--line));
  box-shadow: none
}

html[data-card="outline"] .info-card:hover {
  background: var(--panel)
}

.hero-cinematic {
  min-height: 720px
}

.hero-cinematic .hero-backdrop {
  position: absolute;
  inset: 0;
  z-index: -2
}

.hero-cinematic .hero-backdrop img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.85) brightness(.67)
}

.hero-cinematic::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background: linear-gradient(90deg, rgba(4, 8, 20, .94), rgba(8, 11, 24, .69) 52%, rgba(7, 11, 20, .3)), linear-gradient(0deg, rgba(6, 9, 18, .9), transparent 65%)
}

.hero-cinematic .hero-grid {
  display: flex;
  min-height: 740px;
  align-items: flex-end;
  padding-block: 120px 105px
}

.hero-cinematic .hero-copy {
  max-width: 830px
}

.hero-cinematic h1 {
  max-width: 800px
}

.hero-cinematic .hero-description {
  max-width: 680px
}

.hero-cinematic .hero-copy,
.hero-cinematic .hero-copy p,
.hero-cinematic .hero-meta {
  color: #f0f4ff
}

.hero-cinematic .cinema-panels {
  position: absolute;
  right: 6%;
  bottom: 105px;
  display: flex;
  gap: 12px;
  opacity: .5;
  color: #fff;
  font-size: 10px;
  letter-spacing: .22em;
  writing-mode: vertical-rl
}

.hero-cinematic .hero-pill {
  background: rgba(255, 255, 255, .11);
  color: #f5f8ff
}

.hero-cinematic .btn-ghost {
  background: rgba(5, 10, 19, .38);
  color: #fff;
  border-color: rgba(255, 255, 255, .28)
}

.hero-collage {
  height: 565px;
  animation: none;
  position: relative
}

.hero-collage .collage-photo {
  position: absolute;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 23px;
  box-shadow: 0 26px 70px rgba(0, 0, 0, .36);
  width: 42%;
  height: 63%;
  top: 19%;
  transform: rotate(-6deg);
  transition: transform .45s
}

.hero-collage .collage-photo img {
  height: 100%;
  width: 100%;
  object-fit: cover
}

.hero-collage .collage-a {
  left: 0;
  top: 22%
}

.hero-collage .collage-b {
  left: 29%;
  top: 11%;
  z-index: 2;
  height: 78%;
  transform: rotate(3deg)
}

.hero-collage .collage-c {
  right: -1%;
  top: 24%;
  transform: rotate(8deg)
}

.hero-collage .collage-photo:hover {
  transform: translateY(-14px) rotate(0deg)
}

.hero-collage .chip-top {
  top: 6%;
  left: -2%
}

.hero-collage .chip-bottom {
  right: -3%;
  bottom: 10%
}

.hero-centered .hero-grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 66px;
  padding-block: 124px 110px;
  min-height: auto
}

.hero-centered .hero-copy {
  text-align: center;
  max-width: 910px
}

.hero-centered .hero-description {
  margin-inline: auto;
  max-width: 740px
}

.hero-centered .hero-actions,
.hero-centered .hero-meta {
  justify-content: center
}

.hero-centered .centered-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1060px;
  width: 100%;
  animation: none
}

.hero-centered .centered-photo {
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  transform: translateY(15px)
}

.hero-centered .centered-photo:nth-child(2) {
  transform: translateY(-15px)
}

.hero-centered .centered-photo img {
  width: 100%;
  height: 235px;
  object-fit: cover
}

.hero-showcase .visual-frame {
  transform: rotate(3deg);
  overflow: hidden;
  box-shadow: 0 36px 95px rgba(0, 0, 0, .3)
}

.hero-showcase .hero-visual {
  padding: 24px 18px 52px
}

.showcase-inset {
  position: absolute;
  bottom: 0;
  left: -8%;
  width: 39%;
  height: 155px;
  overflow: hidden;
  border-radius: 21px;
  border: 5px solid var(--bg);
  box-shadow: 0 16px 50px rgba(0, 0, 0, .26)
}

.showcase-inset img {
  width: 100%;
  height: 100%;
  object-fit: cover
}

.hero-showcase .chip-bottom {
  right: -5%;
  bottom: 15%
}

.hero-editorial .editorial-portrait {
  width: 80%;
  height: 535px;
  overflow: hidden;
  border-radius: 25px;
  transform: rotate(3deg);
  margin-left: auto;
  box-shadow: 0 27px 75px rgba(0, 0, 0, .26)
}

.hero-editorial .editorial-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover
}

.hero-editorial .editorial-inset {
  position: absolute;
  bottom: 5%;
  left: 0;
  width: 43%;
  height: 195px;
  overflow: hidden;
  border: 6px solid var(--bg);
  border-radius: 18px;
  box-shadow: var(--shadow)
}

.hero-editorial .editorial-inset img {
  width: 100%;
  height: 100%;
  object-fit: cover
}

.hero-editorial .chip-top {
  top: 8%;
  left: 1%
}

.hero-editorial .hero-visual {
  animation: none
}

@media(min-width:821px) {
  html[data-layout="editorial"] .hero-grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr)
  }

  html[data-layout="collage"] .hero-grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr)
  }

  html[data-layout="centered"] .hero h1 {
    font-size: clamp(46px, 6vw, 78px)
  }
}

@media(max-width:1120px) {
  .hero-collage {
    height: 485px
  }

  .hero-editorial .editorial-portrait {
    height: 490px
  }
}

@media(max-width:820px) {
  .hero-cinematic {
    min-height: 620px
  }

  .hero-cinematic .hero-grid {
    min-height: 620px;
    padding-block: 115px 85px
  }

  .hero-cinematic .cinema-panels {
    display: none
  }

  .hero-collage {
    height: 465px;
    width: 100%;
    max-width: 650px
  }

  .hero-editorial .editorial-portrait {
    height: 470px
  }

  .hero-centered .hero-grid {
    padding-block: 94px 90px;
    gap: 55px
  }
}

@media(max-width:560px) {
  .hero-cinematic {
    min-height: 590px
  }

  .hero-cinematic .hero-grid {
    min-height: 590px;
    padding-block: 92px 68px
  }

  .hero-cinematic .hero-copy {
    max-width: 100%
  }

  .hero-cinematic .hero-description {
    font-size: 15px
  }

  .hero-collage {
    height: 340px;
    max-width: 100%
  }

  .hero-collage .collage-photo {
    border-radius: 16px
  }

  .hero-collage .chip-top,
  .hero-collage .chip-bottom {
    display: none
  }

  .hero-centered .hero-grid {
    gap: 40px;
    padding-block: 74px 72px
  }

  .hero-centered .centered-gallery {
    gap: 9px
  }

  .hero-centered .centered-photo {
    border-radius: 13px
  }

  .hero-centered .centered-photo img {
    height: 140px
  }

  .hero-editorial .editorial-portrait {
    height: 335px
  }

  .hero-editorial .editorial-inset {
    height: 125px
  }

  .hero-showcase .hero-visual {
    padding: 14px 9px 44px
  }

  .showcase-inset {
    left: 0;
    height: 115px
  }
}

@media(prefers-reduced-motion:reduce) {

  .hero-collage .collage-photo,
  .hero-showcase .visual-frame {
    transition: none !important;
    animation: none !important
  }
}

/* 行业主题不仅影响首屏：内页标题、卡片排列与图文模块也随布局变化 */
html[data-layout="editorial"] .section-heading {
  text-align: left;
  max-width: 920px;
  margin-left: 0
}

html[data-layout="editorial"] .section-heading p {
  margin-left: 0
}

html[data-layout="editorial"] .card-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr))
}

html[data-layout="editorial"] .info-card:nth-child(3n+1) {
  background: color-mix(in srgb, var(--primary) 8%, var(--panel))
}

html[data-layout="collage"] .card-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr))
}

html[data-layout="collage"] .info-card:nth-child(3n+2) {
  background: color-mix(in srgb, var(--primary) 7%, var(--panel))
}

html[data-layout="cinematic"] .subhero {
  background: radial-gradient(ellipse at 10% 20%, color-mix(in srgb, var(--primary) 16%, transparent), transparent 60%), var(--bg)
}

html[data-layout="centered"] .subhero-inner {
  text-align: center
}

html[data-layout="centered"] .subhero-inner p {
  margin-inline: auto
}

html[data-layout="centered"] .breadcrumb {
  justify-content: center
}

html[data-layout="showcase"] .section-soft {
  background: color-mix(in srgb, var(--surface2) 72%, var(--bg))
}

@media(max-width:820px) {

  html[data-layout="editorial"] .card-grid,
  html[data-layout="collage"] .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr))
  }
}

@media(max-width:560px) {

  html[data-layout="editorial"] .card-grid,
  html[data-layout="collage"] .card-grid {
    grid-template-columns: 1fr
  }
}

.brand {
  min-width: 0
}

.brand>span:last-child {
  max-width: min(27vw, 340px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap
}

@media(max-width:820px) {
  .brand>span:last-child {
    max-width: calc(100vw - 145px)
  }
}

/* LAOWANG_V29_BACKGROUND_VARIATION:183e78d0a11c8a5a */
/* 每套站点独立生成并固定的背景主题；不修改页面文案和布局。 */
html,
html[data-theme="light"],
html[data-theme="dark"] {
  --bg: #b3e2b1;
  --surface: #d7ead7;
  --surface2: #e8d8ca;
  --panel: #ebf5eb;
  --text: #172234;
  --muted: #46536a;
  --line: rgba(32, 45, 67, .19);
  --primary: #259c21;
  --accent: #ae6729;
  --gradient: linear-gradient(125deg, #259c21, #ae6729);
}

body {
  background: var(--bg);
  color: var(--text);
}

.section-soft {
  background: var(--surface);
}

.hero:not(.hero-cinematic) {
  background: linear-gradient(150deg, var(--bg) 0%, var(--surface2) 65%, var(--bg) 100%);
}

.subhero {
  background: linear-gradient(145deg, var(--surface2), var(--surface));
}