@font-face {
  font-family: "ExtraBold";
  src: url("../image/font/AlibabaPuHuiTi-2-95-ExtraBold.ttf") format("truetype");
}

@font-face {
  font-family: "Regular";
  src: url("../image/font/AlibabaPuHuiTi-2-55-Regular.otf") format("opentype");
}

@font-face {
  font-family: "Medium";
  src: url("../image/font/AlibabaPuHuiTi-2-65-Medium.otf") format("opentype");
}

:root {
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --bg-card: #111111;
  --bg-card-hover: #1a1a1a;
  --accent-green: #2cd03d;
  --accent-green-dark: #22a82f;
  --accent-green-light: #4ade80;
  --text-white: #ffffff;
  --text-gray: #b6bbc3;
  --text-gray-dark: #6b7280;
  --border-color: #222222;
  --border-color-light: #333333;
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: #f7f9fb;
  color: var(--text-gray);
  font-family: "Regular", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--text-white);
  font-weight: 600;
  line-height: 1.2;
}

a {
  color: var(--text-gray);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: #00b1f3;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  max-width: 1320px;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
  background: #fff;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-medium);
}

.navbar.scrolled {
  background: #fff;
  border-bottom-color: #fff;
  padding: 14px 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 48px;
}

.logo {
  height: 48px;
}

.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 8px;
  margin: auto 0;
}

.navbar-toggler {
  display: none;
}

.nav-menu li a {
  color: #000;
  font-size: 15px;
  font-weight: 500;
  padding: 8px 18px;
  border-radius: 6px;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-menu li a:hover {
  background: rgba(255, 255, 255, 0.05);
}

.nav-menu li a::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: #16b6f0;
  transition: width var(--transition-medium);
  border-radius: 1px;
}

.nav-menu li a:hover::after {
  width: 60%;
}

.dropdown {
  position: relative;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 1000;
  padding: 8px;
  background: linear-gradient(270deg, #050812 0%, #1f202a 100%);
}

.dropdown:hover .dropdown-menu {
  display: flex;
  flex-direction: column;
}

.dropdown-menu a {
  color: #fff !important;
  font-size: 16px;
  font-weight: 500;
  text-align: left;
  transition: all 0.3s ease;
  margin-bottom: 8px;
  white-space: nowrap;
}

.dropdown-menu a:last-child {
  margin-bottom: 0;
}

.dropdown-menu a::after {
  display: none !important;
}

.blue-bg {
  background: #f3f5f9;
  width: 100%;
  height: 78px;
}

.platform-bg {
  background: #f3f5f9;
  width: 100%;
  padding: 40px 0 120px;
}

section {
  padding: 100px 0;
  position: relative;
}

.section-2 {
  padding: 50px 0;
  position: relative;
}

.section-badge {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
  color: rgba(3, 182, 240, 1);
  font-size: 20px;
  font-weight: 400;
  letter-spacing: 2px;
  margin-bottom: 20px;
}

.section-badge::before {
  content: "";
  display: inline-block;
  width: 100%;
  height: 1px;
  background: rgba(3, 182, 240, 1);
  order: 1;
}

.section-title {
  font-size: 34px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 20px;
  line-height: 1.15;
  font-family: "ExtraBold";
}

.section-subtitle {
  font-size: 16px;
  color: rgba(44, 48, 55, 1);
  margin-bottom: 48px;
  line-height: 1.7;
}

.section-content {
  font-size: 16px;
  color: rgba(44, 48, 55, 1);
  line-height: 1.7;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.banner-bg {
  background-image: url("../image/contact/BG_4.jpg");
  background-size: cover; /* 等比例铺满容器，不变形 */
  background-position: right center; /* 图片居中 */
  background-repeat: no-repeat;
}

.approach-bg {
  background-image: url("../image/contact/BG_5.jpg");
  background-size: cover; /* 等比例铺满容器，不变形 */
  background-position: right center; /* 图片居中 */
  background-repeat: no-repeat;
}
.global-bg {
  background-image: url("../image/contact/BG_15.jpg");
  background-size: cover; /* 等比例铺满容器，不变形 */
  background-position: right top; /* 图片居中 */
  background-repeat: no-repeat;
  padding: 100px 0 140px;
}

.hero-section {
  min-height: 960px;
  display: flex;
  align-items: center;
  padding: 140px 0 100px;
  position: relative;
  overflow: hidden;
}

.sovereignty-bg {
  background-image: url("../image/contact/BG_6.jpg");
  background-size: cover; /* 等比例铺满容器，不变形 */
  background-position: center right; /* 图片居中 */
  background-repeat: no-repeat;
  min-height: 500px;
}

.hero-title {
  font-size: 56px;
  font-weight: 800;
  color: rgba(0, 0, 0, 1);
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -1px;
  max-width: 100%;
  font-family: "ExtraBold";
}

.hero-title—2 {
  font-size: 54px;
}

.hero-subtitle {
  font-size: 35px;
  color: rgba(0, 0, 0, 1);
  line-height: 1.2;
  margin-bottom: 36px;
  max-width: 100%;
  font-family: "ExtraBold";
}

.hero-title .char,
.hero-subtitle .char {
  display: inline-block;
  opacity: 0;
  transform: translateX(6px);
  animation: char-reveal 0.7s ease forwards;
}

.hero-title .word,
.hero-subtitle .word {
  display: inline-block;
  white-space: nowrap;
}

@keyframes char-reveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slide-in-right {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.hero-content {
  font-size: 18px;
  color: rgba(44, 48, 55, 1);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 680px;
}

.about-content {
  padding-right: 40px;
}

.contact-badge {
  color: #03b6f0;
}

.contact-badge::before {
  background: #03b6f0;
}

.contact-badge-2 {
  color: #333;
}

.contact-badge-2::before {
  background: #333;
}

.contact-title {
  color: #101819;
}

.sovereignty-title {
  color: rgba(255, 255, 255, 1);
}

.contact-section-desc {
  color: #101819;
}

.cta-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 100%;
}

.cta-button {
  position: relative;
  overflow: hidden;
  z-index: 1;
  background-color: #fff;
  color: #16b6f0;
  border: #fff;
  border-radius: 50px;
  transition: all 0.4s ease-in-out;
  padding: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.cta-button::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 8px;
  width: 48px;
  height: calc(100% - 16px);
  background-color: #16b6f0;
  border-radius: 50px;
  z-index: -1;
  transition: width 0.4s ease-in-out;
}

.cta-button:hover {
  color: #fff;
  background-color: #fff;
}

.cta-button:hover::before {
  width: calc(100% - 16px);
  background-color: #16b6f0;
}

.cta-icon {
  width: 48px;
  height: 48px;
  background: #16b6f0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #000;
  font-size: 18px;
  line-height: 1;
}

.cta-text {
  padding-right: 20px;
  font-family: "Medium";
}

.cta-subtext {
  font-size: 16px;
  color: #000;
  margin: 0;
}

.contact-bg {
  background-image: url("../image/contact/BG_3.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.features-grid {
  margin-bottom: 2px;
}

.bottom-features-grid {
  margin-top: 120px;
}

.feature-card {
  background: #f7f9fb;
  border-radius: 10px;
  padding: 30px 18px;
  transition: all var(--transition-medium);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.feature-card:hover {
  background: rgba(255, 255, 255, 0.19);
}

.feature-card:hover svg {
  animation: shakeX 0.5s ease-in-out;
}

@keyframes shakeX {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-4px);
  }
  75% {
    transform: translateX(4px);
  }
}

.feature-card h4 {
  color: rgba(0, 0, 0, 1);
  font-size: 22px;
  font-family: "ExtraBold";
}

.feature-card p {
  color: #2c3037;
}

.policy-card {
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(225, 225, 225, 1);
  border-radius: 12px;
  align-items: start;
  height: 100%;
}

.policy-card:hover {
  border: 1px solid rgba(22, 182, 240, 1);
  border-radius: 12px;
  align-items: start;
}

.policy-card p {
  text-align: left;
}

.policy-view {
  font-size: 18px;
  font-weight: 500;
  color: rgba(3, 182, 240, 1);
}

.policy-view a {
  color: rgba(3, 182, 240, 1);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  margin-bottom: 25px;
}

.footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: 80px 0 0;
}

.footer-top {
  padding-bottom: 60px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.footer-brand .logo {
  height: 48px;
}

.footer-desc {
  font-size: 14px;
  color: var(--text-white);
  line-height: 1.7;
  max-width: 300px;
}

.footer-links h5 {
  font-size: 20px;
  font-weight: 900;
  color: var(--text-white);
  margin-bottom: 16px;
  text-transform: capitalize;
  letter-spacing: 0.5px;
}

.footer-links ul {
  list-style: none;
  padding: 0;
}

.footer-links ul li {
  margin-bottom: 6px;
}

.footer-links ul li a {
  font-size: 16px;
  color: var(--text-white);
  transition: color var(--transition-fast);
}

.footer-links ul li a:hover {
  color: #03b6f0;
}

.footer-email {
  font-size: 18px;
  color: var(--text-white);
  margin-bottom: 24px;
}

/* 订阅表单 */
.footer-subscribe {
  display: flex;
  align-items: center;
  background: #2a2d34;
  border-radius: 999px;
  padding: 4px;
  max-width: 300px;
}

.subscribe-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-white);
  padding: 12px 20px;
  font-size: 16px;
}

.subscribe-input::placeholder {
  color: var(--text-gray-dark);
}

.subscribe-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #03b6f0;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.subscribe-btn:hover {
  transform: scale(1.05);
}

.footer-left {
  margin-top: 0;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: 100%;
}

.footer-right {
  margin-left: 60px;
}

.footer-right-top {
  margin-bottom: 34px;
  display: flex;
  justify-content: flex-start;
  gap: 109px;
}

/* 底部栏 */
.footer-bottom {
  margin-top: 0;
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copyright {
  font-size: 16px;
  color: var(--text-white);
}

.footer-legal {
  display: flex;
  gap: 32px;
}

.footer-legal a {
  font-size: 16px;
  color: var(--text-white);
  transition: color var(--transition-fast);
}

.footer-legal a:hover {
  color: #03b6f0;
}

.svg-draw-path {
  animation: svg-draw 2s ease-in-out forwards;
}

@keyframes svg-draw {
  to {
    stroke-dashoffset: 0;
  }
}

@media (max-width: 991px) {
  .email-section .feature-card::after {
    display: none;
  }

  .section-divider {
    display: none;
  }

  .divider-half {
    max-width: 120px;
  }
}

.email-section {
  text-align: center;
}
.email-title {
  color: #000;
  font-weight: 800;
  margin-bottom: 40px;
  font-family: "ExtraBold";
}

/* Email cards fix: force single row + equal height */
.email-section .row {
  align-items: stretch;
}

.email-section .col-lg {
  display: flex;
  min-width: 0;
}

.email-section .feature-card {
  height: 100%;
  width: 100%;
  position: relative;
}

/* Vertical divider between cards */
.email-section .feature-card::after {
  content: "";
  position: absolute;
  right: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 50%;
  background: rgba(151, 171, 190, 1);
}

.email-section .col-lg:last-child .feature-card::after {
  display: none;
}

/* Section Divider: two-part horizontal line with dots */
.section-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin-top: 60px;
}

.divider-half {
  display: flex;
  align-items: center;
  flex: 1;
  max-width: 645px;
}

.divider-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(151, 171, 190, 1);
  flex-shrink: 0;
}

.divider-line {
  flex: 1;
  height: 1px;
  background: rgba(151, 171, 190, 1);
}

.policy-section {
  text-align: center;
  background: rgba(245, 246, 250, 1);
}

@media (max-width: 991px) {
  .banner-bg {
    background-position: center;
  }
  .section-divider {
    display: none;
  }

  .divider-half {
    max-width: 120px;
  }

  .email-section .feature-card::after {
    display: none;
  }

  .navbar {
    padding: 14px 16px;
  }

  .navbar.scrolled {
    padding: 14px 16px;
    background: #fff;
    border-bottom-color: transparent;
  }

  .navbar .container {
    position: relative;
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  .nav-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    flex-direction: column;
    padding: 16px 24px;
    gap: 0;
    border-top: 1px solid #e5e7eb;
    z-index: 999;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-menu li a {
    display: block;
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    color: #000;
  }

  .nav-menu li a::after {
    display: none;
  }

  .navbar-toggler {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    cursor: pointer;
    padding: 8px;
  }

  .navbar-toggler-icon {
    display: block;
    width: 100%;
    height: 2px;
    background: #000;
    position: relative;
    transition: all 0.3s ease;
  }

  .navbar-toggler-icon::before,
  .navbar-toggler-icon::after {
    content: "";
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: #000;
    transition: all 0.3s ease;
  }

  .navbar-toggler-icon::before {
    top: -6px;
  }

  .navbar-toggler-icon::after {
    top: 6px;
  }

  .navbar-toggler.active .navbar-toggler-icon {
    background: transparent;
  }

  .navbar-toggler.active .navbar-toggler-icon::before {
    top: 0;
    transform: rotate(45deg);
  }

  .navbar-toggler.active .navbar-toggler-icon::after {
    top: 0;
    transform: rotate(-45deg);
  }

  .container {
    padding-left: 16px !important;
    padding-right: 16px !important;
  }

  .global-bg {
    background-position: center top; /* 图片居中 */
  }

  section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 28px;
    line-height: 30px;
    margin-bottom: 20px;
  }

  .section-desc {
    font-size: 14px;
  }

  .section-subtitle {
    font-size: 15px;
    margin-bottom: 32px;
  }

  .section-badge {
    font-size: 14px;
  }

  .hero-title {
    font-size: 28px;
    line-height: 30px;
    margin-bottom: 10px;
  }

  .hero-content {
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 30px;
  }

  .hero-subtitle {
    font-size: 18px;
    line-height: 1.5;
    margin-bottom: 30px;
  }

  .hero-buttons {
    font-size: 14px;
    margin-bottom: 50px;
  }

  .hero-visual {
    margin-top: 0px;
    padding: 20px 15px;
  }

  .btn {
    font-size: 14px;
  }

  .btn-text {
    padding: 0 6px;
    font-weight: 500;
  }

  .btn-icon {
    width: 30px;
    height: 30px;
  }

  .btn-primary {
    padding: 4px 14px;
  }

  .features-grid .feature-card {
    padding: 20px;
  }

  .platform-footer {
    flex-direction: column;
    text-align: center;
    padding: 20px 16px;
    gap: 10px;
  }

  .platform-footer::before {
    border-radius: 20px;
  }

  .footer {
    padding: 60px 0 0;
  }

  .footer-top {
    padding-bottom: 40px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 12px;
    padding: 24px 0;
  }

  .footer-bottom::before {
    left: 0;
    right: 0;
  }

  .footer-right {
    margin-left: 0;
  }

  .footer-right-top {
    flex-direction: column;
    gap: 40px;
    margin-bottom: 40px;
  }

  .footer-left {
    border-right: none;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border-color);
  }

  .footer-legal {
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
  }

  .footer-desc {
    max-width: 100%;
  }

  .footer-subscribe {
    max-width: 100%;
  }

  .cta-wrapper {
    margin-top: 30px;
    align-items: flex-start;
  }

  .cta-subtext {
    text-align: center;
  }

  .bottom-features-grid {
    margin-top: 30px;
  }

  .section-content {
    font-size: 14px;
  }

  .banner-bg {
    background-image: url(../image/mobile/BG_7.jpg);
    background-position: bottom;
    padding-bottom: 280px;
    min-height: 680px;
  }

  .approach-bg {
    background-image: url(../image/mobile/BG_8.jpg);
    background-position: bottom;
    padding-bottom: 300px;
  }

  .sovereignty-bg {
    background-image: url(../image/mobile/BG_9.jpg);
    background-repeat: no-repeat;
    min-height: 375px;
    padding-bottom: 20px;
  }

  .email-section-left {
    text-align: initial;
  }

  .email-title {
    margin-bottom: 20px;
  }

  .email-section .feature-card {
    border: 1px solid #ededed;
    padding: 20px 15px;
    align-items: flex-start;
  }

  .email-section .feature-card p {
    text-align: left;
  }

  .email-section .feature-card h4 br {
    display: none;
  }

  .feature-card svg {
    width: 32px;
    height: 32px;
    color: #000;
  }

  .feature-card h4 {
    font-size: 16px;
  }

  .card-top {
    margin-bottom: 10px;
  }
}