:root {
  --bg: #030919;
  --surface: rgba(15, 28, 57, 0.66);
  --line: rgba(97, 204, 255, 0.42);
  --text: #edf4ff;
  --muted: #b4c5e6;
  --brand: #1677ff;
  --brand-soft: rgba(42, 136, 255, 0.22);
  --shadow: 0 24px 42px rgba(2, 8, 26, 0.56);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  position: relative;
  min-height: 100vh;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", sans-serif;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(1250px 560px at -8% -10%, rgba(80, 101, 255, 0.36) 0%, transparent 63%),
    radial-gradient(960px 420px at 108% -4%, rgba(0, 228, 255, 0.24) 0%, transparent 58%),
    radial-gradient(860px 620px at 44% 112%, rgba(178, 84, 255, 0.2) 0%, transparent 68%),
    linear-gradient(155deg, #050b1d 0%, #0c1530 46%, #081428 100%);
  line-height: 1.65;
}

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

main {
  padding: 0 6vw 72px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(5, 12, 28, 0.74);
  border-bottom: 1px solid rgba(112, 178, 255, 0.32);
  backdrop-filter: blur(10px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 6vw;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 0.2px;
}

.brand-vision {
  display: inline-flex;
  align-items: center;
  border-radius: 10px;
  padding: 2px 10px;
  font-weight: 900;
  color: #050505;
  background: linear-gradient(180deg, #ffffff 0%, #dae6ff 100%);
  box-shadow: 0 6px 16px rgba(1, 7, 22, 0.45);
}

.brand-vpn {
  color: #eff4ff;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  color: #ccdaf3;
  font-weight: 600;
}

.nav-links a:hover {
  color: #89dbff;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-actions form {
  margin: 0;
}

.link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  color: #eaf2ff;
  padding: 9px 10px;
  border-radius: 10px;
  font-weight: 600;
}

.link-btn:hover {
  background: rgba(91, 151, 255, 0.18);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 12px;
  padding: 11px 18px;
  background: linear-gradient(135deg, #3da2ff, #1677ff);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 14px 28px rgba(22, 119, 255, 0.34);
}

.btn:hover {
  filter: brightness(1.04);
}

.btn.small {
  border-radius: 999px;
  padding: 9px 16px;
}

.btn.ghost {
  background: rgba(10, 22, 48, 0.62);
  color: #c4ebff;
  border: 1px solid rgba(122, 205, 255, 0.62);
  box-shadow: none;
}

.landing {
  padding-top: 38px;
}

.consult-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.8fr);
  gap: 20px;
  align-items: stretch;
}

.hero-copy,
.wechat-card,
.step-card,
.feature-card,
.download-card,
.auth-card,
.auth-intro,
.card {
  background: linear-gradient(150deg, rgba(22, 38, 72, 0.72), rgba(12, 23, 50, 0.58));
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.hero-copy {
  padding: 28px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: linear-gradient(120deg, rgba(173, 73, 255, 0.36), rgba(55, 169, 255, 0.36));
  border: 1px solid rgba(145, 197, 255, 0.42);
  color: #dbeeff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.hero-copy h1 {
  margin: 14px 0 12px;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.15;
  font-weight: 900;
  color: #f4f9ff;
}

.hero-vision {
  display: inline-block;
  border-radius: 10px;
  padding: 0 12px;
  margin-right: 6px;
  color: #080808;
  background: linear-gradient(180deg, #ffffff 0%, #dae7ff 100%);
  box-shadow: 0 8px 18px rgba(5, 11, 27, 0.45);
}

.hero-lead {
  margin: 0 0 8px;
  color: #c1d2ef;
}

.hero-tags {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-tags span {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(18, 36, 72, 0.72);
  border: 1px solid rgba(119, 200, 255, 0.45);
  color: #cfe9ff;
  font-size: 13px;
  font-weight: 600;
}

.hero-actions {
  margin-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-link {
  border: 1px dashed #c5d8ff;
}

.hero-note {
  margin-top: 16px;
  color: #adc2e5;
  font-size: 14px;
}

.wechat-card {
  padding: 24px;
  display: grid;
  gap: 10px;
  align-content: start;
}

.wechat-title {
  font-size: 13px;
  color: #b7cae8;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
}

.wechat-id {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: 0.4px;
  color: #8bd8ff;
}

.wechat-card p {
  margin: 0;
  color: #c5d5f0;
}

.wechat-card img {
  margin-top: 8px;
  width: 100%;
  max-width: 220px;
}

.market-card {
  gap: 14px;
}

.market-main-title {
  margin: 0;
  font-size: clamp(28px, 3.2vw, 44px);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: 0.2px;
  color: #f4f9ff;
}

.market-slogan {
  margin: 0;
  font-size: 22px;
  font-weight: 800;
  color: #d3ddf3;
}

.market-section-title {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 8px 14px;
  border-radius: 12px;
  background: linear-gradient(135deg, #1fd4a1, #09a387);
  color: #fff;
  font-size: 14px;
  font-weight: 800;
}

.market-list {
  margin: 0;
  padding-left: 20px;
  list-style: disc;
  display: grid;
  gap: 10px;
}

.market-list li {
  margin: 0;
  color: #dce8ff;
  font-size: 17px;
  line-height: 1.5;
}

.market-list li::marker {
  color: #78deff;
}

.market-list strong {
  color: #74eac3;
}

.steps,
.trust,
.download {
  margin-top: 32px;
}

.section-title h2 {
  margin: 0;
  font-size: 30px;
  font-weight: 800;
  color: #f4f9ff;
}

.step-grid,
.trust,
.dashboard-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.step-card,
.feature-card,
.card {
  padding: 20px;
}

.step-card h3,
.feature-card h3,
.card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 800;
}

.step-card p,
.feature-card p,
.card p,
.download-card p {
  margin: 0;
  color: #c0d2ef;
}

.download-card {
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.download-card h2 {
  margin: 0 0 6px;
  font-size: 28px;
  font-weight: 800;
}

.auth {
  padding: 40px 6vw 72px;
}

.auth-simple {
  min-height: calc(100vh - 190px);
  display: grid;
  place-items: start center;
  padding-top: 48px;
}

.auth-commercial {
  display: block;
}

.auth-layout {
  display: grid;
  grid-template-columns: minmax(300px, 1.1fr) minmax(320px, 0.95fr);
  gap: 18px;
  align-items: stretch;
}

.auth-intro {
  padding: 26px;
}

.auth-intro h1 {
  margin: 12px 0 10px;
  font-size: clamp(28px, 3.6vw, 40px);
  line-height: 1.18;
  font-weight: 800;
}

.auth-intro p {
  margin: 0 0 8px;
  color: var(--muted);
}

.auth-tags {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.auth-tags span {
  border-radius: 999px;
  padding: 6px 12px;
  border: 1px solid #d5e4ff;
  color: #2458b8;
  background: #f4f8ff;
  font-size: 13px;
  font-weight: 600;
}

.auth-card {
  width: 100%;
  max-width: 460px;
  margin: 0 auto;
  padding: 26px;
}

.auth-card h2,
.auth-card h1 {
  margin: 0 0 12px;
  font-size: 30px;
  font-weight: 800;
}

.auth-card form {
  display: grid;
  gap: 10px;
}

.auth-card label {
  font-weight: 700;
  font-size: 14px;
}

.auth-card input,
.auth-card textarea,
.auth-card select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 11px 12px;
  font: inherit;
  background: #fbfdff;
}

.auth-card input:focus,
.auth-card textarea:focus,
.auth-card select:focus {
  outline: none;
  border-color: #9fc2ff;
  box-shadow: 0 0 0 3px rgba(22, 119, 255, 0.12);
}

.auth-links {
  margin-top: 12px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--muted);
}

.auth-hint {
  margin-top: 12px;
  color: var(--muted);
}

.dashboard {
  padding-top: 34px;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.dashboard-header h1 {
  margin: 0;
  font-size: 34px;
  font-weight: 800;
}

.badge {
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: 700;
}

.badge.vip {
  color: #fff;
  background: linear-gradient(135deg, #1890ff, #1677ff);
}

.badge.normal {
  color: #2957a0;
  background: #e9f2ff;
}

.stat {
  font-size: 24px;
  font-weight: 800;
}

.stat-sub {
  margin-top: 6px;
  color: var(--muted);
}

.config-variant-actions {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.config-switch-note {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.client-section {
  margin-top: 26px;
}

.client-section h2 {
  margin: 0 0 12px;
  font-size: 28px;
  font-weight: 800;
}

.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}

.client-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.client-card h3 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 800;
}

.client-card p {
  margin: 0;
  color: var(--muted);
}

.client-actions {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.client-note {
  margin-top: 12px;
  color: #365682;
}

.flash {
  margin: 16px 0;
  padding: 11px 14px;
  border-radius: 12px;
  border: 1px solid transparent;
}

.flash-error {
  background: #fff0f0;
  border-color: #ffd7d7;
  color: #ad3131;
}

.flash-success {
  background: #edf6ff;
  border-color: #cae1ff;
  color: #1b4f98;
}

.site-footer {
  margin-top: 28px;
  padding: 30px 6vw;
  color: #dbe8ff;
  background: linear-gradient(160deg, #0f2d5b, #0c2446);
}

.site-footer .brand {
  font-size: 20px;
  font-weight: 800;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.footer-title {
  margin-bottom: 8px;
  font-weight: 700;
}

.footer-grid a {
  display: block;
  margin-bottom: 4px;
}

.footer-note,
.footer-bottom {
  color: #a9c2ea;
}

.footer-bottom {
  margin-top: 20px;
  font-size: 12px;
}

@media (max-width: 980px) {
  .consult-hero,
  .auth-layout {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .wechat-card {
    padding: 22px;
  }
}

@media (max-width: 820px) {
  .nav-links {
    display: none;
  }

  .brand {
    font-size: 20px;
  }

  .brand-vision {
    padding: 2px 8px;
  }

  .nav {
    padding: 12px 5vw;
  }

  main,
  .auth,
  .site-footer {
    padding-left: 5vw;
    padding-right: 5vw;
  }

  .hero-copy h1,
  .auth-intro h1,
  .auth-card h2 {
    font-size: 30px;
  }

  .auth-simple {
    min-height: auto;
    padding-top: 28px;
  }
}

@media (max-width: 640px) {
  .landing {
    padding-top: 20px;
  }

  .hero-actions .btn,
  .hero-actions .btn.ghost,
  .config-variant-actions .btn,
  .config-variant-actions .btn.ghost,
  .client-actions .btn,
  .client-actions .btn.ghost {
    width: 100%;
  }

  .consult-hero,
  .step-grid,
  .trust,
  .dashboard-grid,
  .client-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .hero-copy,
  .wechat-card,
  .step-card,
  .feature-card,
  .download-card,
  .card {
    padding: 18px;
  }

  .hero-copy h1 {
    font-size: 34px;
    line-height: 1.2;
  }

  .hero-vision {
    padding: 0 10px;
  }

  .market-main-title {
    font-size: 30px;
  }

  .market-slogan {
    font-size: 18px;
  }

  .market-list li {
    font-size: 15px;
  }

  .client-actions .link-btn {
    padding-left: 0;
  }

  .auth-card {
    padding: 20px;
  }

  .auth-card h1,
  .auth-card h2 {
    font-size: 26px;
  }
}