:root {
  --bg-0: #060d1a;
  --bg-1: #0d1e3a;
  --ink-0: #f2f9ff;
  --ink-1: #b6c8df;
  --accent-a: #b8f43a;
  --accent-b: #20d9c1;
  --accent-c: #2a6cff;
  --panel: rgba(12, 29, 57, 0.72);
  --border: rgba(135, 180, 245, 0.32);
  --radius-lg: 24px;
  --radius-md: 16px;
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft Yahei', sans-serif;
  color: var(--ink-0);
  background: radial-gradient(circle at 10% 20%, #1c2f57 0%, #081022 56%, #040811 100%);
  line-height: 1.55;
}

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

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

.ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: -1;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.45;
}

.orb-a {
  width: 45vw;
  height: 45vw;
  left: -8vw;
  top: -12vw;
  background: radial-gradient(circle, #9ef052 0%, transparent 72%);
  animation: driftA 16s ease-in-out infinite alternate;
}

.orb-b {
  width: 52vw;
  height: 52vw;
  right: -16vw;
  top: 12vh;
  background: radial-gradient(circle, #2e88ff 0%, transparent 72%);
  animation: driftB 20s ease-in-out infinite alternate;
}

.grid-mask {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(138, 175, 227, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 175, 227, 0.08) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(circle at 50% 40%, rgba(0, 0, 0, 0.95), transparent 75%);
}

.container {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(4, 10, 21, 0.72);
  border-bottom: 1px solid rgba(122, 169, 236, 0.2);
}

.nav-wrap {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.brand img {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  box-shadow: 0 12px 24px rgba(19, 103, 242, 0.35);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.96rem;
}

.main-nav a {
  color: var(--ink-1);
  transition: color 0.24s ease;
  white-space: nowrap;
}

.main-nav a:hover {
  color: #f6fbff;
}

.main-nav a.is-current {
  color: #f6fbff;
}

.main-nav .nav-cta {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(183, 245, 58, 0.48);
  color: #ddffa3;
}

.main-nav a.is-current:not(.nav-cta) {
  border-bottom: 2px solid rgba(184, 244, 58, 0.72);
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 6px;
}

.lang-switch button {
  border: 1px solid rgba(145, 186, 242, 0.36);
  background: rgba(7, 18, 35, 0.65);
  color: #d2e6ff;
  border-radius: 999px;
  min-width: 42px;
  height: 34px;
  padding: 0 10px;
  font-family: 'Sora', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.lang-switch button:hover {
  border-color: rgba(190, 248, 83, 0.65);
}

.lang-switch button.is-active {
  background: linear-gradient(120deg, #b8f43a, #20d9c1);
  color: #031228;
  border-color: transparent;
}

.section {
  padding: 96px 0;
}

.hero {
  padding-top: 72px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: center;
}

.kicker {
  margin: 0;
  font-family: 'Sora', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.76rem;
  color: #ceff6f;
}

.hero-copy h1 {
  margin: 16px 0 16px;
  font-family: 'Sora', sans-serif;
  font-size: clamp(1.95rem, 4vw, 3.3rem);
  line-height: 1.15;
}

.lead {
  margin: 0;
  color: var(--ink-1);
  max-width: 62ch;
}

.hero-actions {
  margin-top: 26px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 12px;
  font-weight: 700;
  font-family: 'Sora', sans-serif;
  cursor: pointer;
  border: 1px solid transparent;
  padding: 12px 18px;
  transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: #07132a;
  background: linear-gradient(115deg, var(--accent-a), var(--accent-b));
  box-shadow: 0 12px 26px rgba(31, 211, 178, 0.3);
}

.btn-ghost {
  color: #d7ebff;
  border-color: rgba(150, 191, 248, 0.42);
  background: rgba(13, 30, 58, 0.55);
}

.metrics {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.metrics li {
  min-width: 132px;
}

.metrics strong {
  display: block;
  font-family: 'Sora', sans-serif;
  font-size: 1.45rem;
  color: #e9ffc1;
}

.metrics span {
  color: #a3b9d6;
  font-size: 0.92rem;
}

.partner-strip {
  margin-top: 26px;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid rgba(135, 180, 245, 0.32);
  background: rgba(8, 20, 40, 0.58);
}

.partner-title {
  margin: 0;
  color: #d7e9ff;
  font-family: 'Sora', sans-serif;
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.partner-logos {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.partner-logo {
  min-height: 94px;
  border-radius: 14px;
  border: 1px solid rgba(141, 184, 247, 0.28);
  background: rgba(225, 236, 255, 0.9);
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.partner-logo img {
  width: 100%;
  max-height: 72px;
  object-fit: contain;
}

.hero-card,
.panel,
.service-card,
.gallery-item,
.message-form {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 20px;
  display: grid;
  gap: 16px;
}

.hero-card img {
  width: min(420px, 100%);
  margin: 0 auto;
}

.hero-card-detail {
  border-radius: 18px;
  padding: 14px 16px;
  background: rgba(8, 18, 34, 0.62);
}

.hero-card-detail h3 {
  margin: 0;
  font-family: 'Sora', sans-serif;
  font-size: 1.08rem;
}

.hero-card-detail p {
  margin: 8px 0 0;
  color: var(--ink-1);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 22px;
}

.panel {
  padding: 26px;
}

.panel h2,
.panel h3,
.section-head h2 {
  margin: 10px 0 0;
  font-family: 'Sora', sans-serif;
}

.panel p {
  color: #c4d5ea;
}

.mini-list ul {
  margin: 14px 0 0;
  padding-left: 18px;
  color: #cde2ff;
}

.mini-list li + li {
  margin-top: 8px;
}

.section-head h2 {
  margin-top: 10px;
  font-size: clamp(1.55rem, 3vw, 2.5rem);
}

.service-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.service-card {
  padding: 20px;
}

.service-card h3 {
  margin: 0;
  font-family: 'Sora', sans-serif;
}

.service-card p {
  margin: 12px 0 0;
  color: #bed4ed;
  font-size: 0.95rem;
}

.gallery-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.gallery-item {
  margin: 0;
  overflow: hidden;
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.gallery-item figcaption {
  padding: 16px 18px 20px;
}

.gallery-item h3 {
  margin: 0;
  font-family: 'Sora', sans-serif;
  font-size: 1.08rem;
}

.gallery-item p {
  margin: 10px 0 0;
  color: #bfd4ea;
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 20px;
}

.info-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.info-list li {
  color: #c9ddf2;
}

.info-list span {
  display: inline-block;
  width: 90px;
  color: #e2ff96;
}

.contact-note ol {
  margin: 16px 0 20px;
  padding-left: 18px;
  color: #cce1f8;
}

.contact-note li + li {
  margin-top: 7px;
}

.message-wrap .section-head {
  margin-bottom: 20px;
}

.message-form {
  padding: 22px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.message-form label {
  display: grid;
  gap: 8px;
  font-size: 0.95rem;
  color: #dbebff;
}

.message-form input,
.message-form select,
.message-form textarea {
  width: 100%;
  border: 1px solid rgba(152, 187, 244, 0.45);
  background: rgba(7, 18, 35, 0.74);
  color: #f1f8ff;
  border-radius: 12px;
  padding: 10px 12px;
  font: inherit;
}

.message-form textarea {
  resize: vertical;
  min-height: 120px;
}

.message-form .full,
.message-form button,
.form-status {
  grid-column: 1 / -1;
}

.form-status {
  margin: 0;
  min-height: 24px;
  color: #b7d4f7;
}

.form-status.success {
  color: #b8ff6d;
}

.form-status.error {
  color: #ffad9f;
}

.site-footer {
  border-top: 1px solid rgba(151, 186, 241, 0.18);
  padding: 24px 0 34px;
  color: #b3c6dd;
  text-align: center;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.62s ease, transform 0.62s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Admin */
.admin-page {
  min-height: 100vh;
  padding: 44px 0 60px;
}

.admin-wrap {
  width: min(1100px, calc(100% - 34px));
  margin: 0 auto;
}

.admin-head h1 {
  margin: 0;
  font-family: 'Sora', sans-serif;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
}

.admin-head p {
  margin: 10px 0 0;
  color: #bed3ea;
}

.admin-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.admin-auth {
  margin-top: 20px;
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.admin-auth input {
  border: 1px solid rgba(152, 187, 244, 0.45);
  background: rgba(7, 18, 35, 0.74);
  color: #f1f8ff;
  border-radius: 12px;
  padding: 10px 12px;
  min-width: 280px;
}

.admin-status {
  margin-top: 10px;
  color: #c4d9f1;
}

.admin-list {
  margin-top: 20px;
  display: grid;
  gap: 14px;
}

.msg-card {
  border: 1px solid rgba(138, 178, 241, 0.35);
  border-radius: 18px;
  background: rgba(10, 25, 49, 0.74);
  padding: 16px;
}

.msg-card h3 {
  margin: 0;
  font-family: 'Sora', sans-serif;
  font-size: 1rem;
}

.msg-meta {
  margin-top: 8px;
  color: #afc8e3;
  font-size: 0.9rem;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.msg-body {
  margin-top: 10px;
  color: #d8e8fc;
  white-space: pre-wrap;
}

@keyframes driftA {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    transform: translate3d(7vw, 4vh, 0) scale(1.08);
  }
}

@keyframes driftB {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }
  to {
    transform: translate3d(-8vw, -5vh, 0) scale(1.06);
  }
}

@media (max-width: 1050px) {
  .hero-grid,
  .about-grid,
  .info-grid {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 760px) {
  .section {
    padding: 74px 0;
  }

  .nav-wrap {
    min-height: auto;
    padding: 12px 0;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 10px;
  }

  .main-nav {
    width: 100%;
    order: 3;
    overflow-x: auto;
    padding-bottom: 4px;
    gap: 8px;
    -webkit-overflow-scrolling: touch;
  }

  .main-nav a {
    white-space: nowrap;
    padding: 8px 10px;
    border: 1px solid rgba(145, 186, 242, 0.28);
    border-radius: 999px;
    background: rgba(7, 18, 35, 0.58);
  }

  .main-nav .nav-cta {
    padding: 8px 12px;
  }

  .lang-switch {
    margin-left: auto;
    order: 2;
  }

  .lang-switch button {
    min-width: 38px;
    height: 32px;
    padding: 0 8px;
    font-size: 0.75rem;
  }

  .brand span {
    font-size: 0.96rem;
  }

  .hero {
    padding-top: 56px;
  }

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

  .service-grid,
  .gallery-grid,
  .message-form {
    grid-template-columns: 1fr;
  }

  .partner-logos {
    grid-template-columns: 1fr;
  }

  .message-form {
    padding: 16px;
  }

  .panel,
  .service-card {
    padding: 20px;
  }

  .admin-auth {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-auth input {
    min-width: 0;
    width: 100%;
  }

  .admin-top-row {
    flex-direction: column;
    align-items: flex-start;
  }
}