:root {
  --bg: #071411;
  --bg-elevated: #0d221c;
  --bg-alt: #0a1a16;
  --surface: rgba(232, 247, 240, 0.04);
  --ink: #e8f7f0;
  --ink-muted: #9bb8ad;
  --accent: #2ee59a;
  --accent-deep: #149e6c;
  --accent-soft: rgba(46, 229, 154, 0.14);
  --warn: #f0c36a;
  --danger: #ff7b72;
  --ok: #5ee4a8;
  --line: rgba(232, 247, 240, 0.12);
  --radius: 18px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --font-display: "Bricolage Grotesque", Georgia, serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;
  --container: min(1120px, calc(100% - 2rem));
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(46, 229, 154, 0.16), transparent 55%),
    radial-gradient(900px 500px at 0% 20%, rgba(20, 158, 108, 0.12), transparent 50%),
    linear-gradient(180deg, #071411 0%, #0a1a16 45%, #071411 100%);
  background-attachment: fixed;
  line-height: 1.6;
  min-height: 100vh;
}

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

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: #7ff0bd;
}

/* ----- 加载页 ----- */
body.is-loading {
  overflow: hidden;
}

.page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  background:
    radial-gradient(700px 360px at 50% 30%, rgba(46, 229, 154, 0.18), transparent 60%),
    #071411;
  transition: opacity 0.45s ease, visibility 0.45s ease;
}

.page-loader.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.page-loader-inner {
  width: min(320px, calc(100% - 2.5rem));
  text-align: center;
}

.page-loader-mark {
  width: 3.25rem;
  height: 3.25rem;
  margin: 0 auto 1.1rem;
  border-radius: 0.85rem;
  background: linear-gradient(145deg, var(--accent), var(--accent-deep));
  box-shadow: 0 0 0 4px rgba(46, 229, 154, 0.16);
  position: relative;
  animation: loaderPulse 1.4s ease-in-out infinite;
}

.page-loader-mark::after {
  content: "";
  position: absolute;
  inset: 28%;
  border: 2.5px solid #071411;
  border-radius: 999px;
}

.page-loader-brand {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(120deg, #e8f7f0, #2ee59a);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-loader-text {
  margin: 0 0 1.25rem;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.page-loader-bar {
  height: 6px;
  border-radius: 999px;
  background: rgba(232, 247, 240, 0.1);
  overflow: hidden;
}

.page-loader-bar-fill {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent-deep), var(--accent));
  transition: width 0.08s linear;
}

.page-loader-percent {
  margin: 0.75rem 0 0;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

@keyframes loaderPulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.06);
  }
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  background: var(--accent);
  color: #071411;
  padding: 0.75rem 1rem;
  z-index: 1000;
  font-weight: 700;
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px);
  background: rgba(7, 20, 17, 0.82);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 1.55rem;
  height: 1.55rem;
  border-radius: 0.45rem;
  background:
    linear-gradient(145deg, var(--accent), var(--accent-deep));
  box-shadow: 0 0 0 3px rgba(46, 229, 154, 0.18);
  position: relative;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 28%;
  border: 2px solid #071411;
  border-radius: 999px;
}

.brand-name {
  font-size: 1.15rem;
}

.nav {
  display: none;
  margin-left: auto;
  gap: 1.25rem;
}

.nav a {
  color: var(--ink-muted);
  text-decoration: none;
  font-weight: 550;
  font-size: 0.95rem;
}

.nav a:hover {
  color: var(--ink);
}

.header-cta {
  display: none;
  margin-left: 0.5rem;
}

.menu-toggle {
  margin-left: auto;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  display: grid;
  place-content: center;
  gap: 6px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 1.1rem;
  height: 2px;
  background: var(--ink);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.menu-mobile {
  display: grid;
  gap: 0.35rem;
  padding: 0.5rem 1rem 1.25rem;
  border-top: 1px solid var(--line);
  background: rgba(7, 20, 17, 0.96);
}

.menu-mobile[hidden] {
  display: none;
}

.menu-mobile a {
  color: var(--ink);
  text-decoration: none;
  padding: 0.85rem 0.5rem;
  font-weight: 600;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3rem;
  padding: 0.75rem 1.35rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.98rem;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-sm {
  min-height: 2.5rem;
  padding: 0.55rem 1.1rem;
  font-size: 0.9rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #071411;
}

.btn-primary:hover {
  color: #071411;
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.hero {
  position: relative;
  min-height: calc(100svh - var(--header-h));
  display: grid;
  align-items: end;
  overflow: hidden;
  padding: 2.5rem 0 3.5rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(232, 247, 240, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 247, 240, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 60% at 70% 40%, #000 20%, transparent 75%);
  animation: gridDrift 18s linear infinite;
}

.hero-glow {
  position: absolute;
  width: min(70vw, 520px);
  height: min(70vw, 520px);
  right: -5%;
  top: 8%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 229, 154, 0.28), transparent 68%);
  filter: blur(8px);
  animation: glowPulse 5.5s ease-in-out infinite;
}

.hero-visual {
  position: absolute;
  right: max(2%, calc(50% - 560px));
  top: 50%;
  transform: translateY(-48%);
  width: min(46vw, 420px);
  opacity: 0.95;
}

.hero-visual svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.35));
}

.shield-path {
  stroke-dasharray: 1800;
  stroke-dashoffset: 1800;
  animation: drawShield 2.4s ease forwards 0.2s;
}

.coin-disk,
.coin-mark {
  transform-origin: 320px 320px;
  animation: coinFloat 4.8s ease-in-out infinite;
}

.pulse-ring {
  transform-origin: 320px 320px;
  animation: ringOut 3.6s ease-out infinite;
}

.pulse-ring.delay {
  animation-delay: 1.2s;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 36rem;
  padding-bottom: 0.5rem;
  animation: riseIn 0.9s ease both;
}

.brand-hero {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 8vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 0.95;
  background: linear-gradient(120deg, #e8f7f0 10%, #2ee59a 70%, #a7e8c9 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 4.6vw, 2.35rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
  font-weight: 700;
  max-width: 16ch;
}

.hero-lead {
  margin: 0 0 1.75rem;
  color: var(--ink-muted);
  font-size: 1.05rem;
  max-width: 34ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.trust-strip {
  border-block: 1px solid var(--line);
  background: rgba(46, 229, 154, 0.05);
}

.trust-inner {
  display: grid;
  gap: 0.85rem;
  padding: 1.1rem 0;
}

.trust-inner p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.trust-inner strong {
  color: var(--ink);
}

.section {
  padding: clamp(3.5rem, 8vw, 5.5rem) 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(13, 34, 28, 0.55), rgba(7, 20, 17, 0.2));
  border-block: 1px solid var(--line);
}

.section-head {
  max-width: 40rem;
  margin-bottom: 2.25rem;
}

.section-head h2 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.section-head p {
  margin: 0;
  color: var(--ink-muted);
}

.tools {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.tool-tab {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-muted);
  border-radius: 999px;
  padding: 0.7rem 1.1rem;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.tool-tab:hover,
.tool-tab.is-active {
  color: #071411;
  background: var(--accent);
  border-color: var(--accent);
}

.tool-panels {
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 4px);
  background: rgba(7, 20, 17, 0.55);
  padding: clamp(1.25rem, 3vw, 2rem);
  box-shadow: var(--shadow);
}

.tool-panel[hidden] {
  display: none;
}

.tool-panel h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.tool-panel > p {
  margin: 0 0 1.25rem;
  color: var(--ink-muted);
}

.tool-form {
  display: grid;
  gap: 0.85rem;
}

.tool-form label,
.network-pick legend {
  font-weight: 600;
  font-size: 0.92rem;
}

.tool-form input[type="text"],
.tool-form input[type="url"] {
  width: 100%;
  min-height: 3.1rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #06110e;
  color: var(--ink);
  padding: 0.8rem 1rem;
  font: inherit;
}

.tool-form input:focus {
  outline: 2px solid rgba(46, 229, 154, 0.55);
  outline-offset: 1px;
  border-color: var(--accent);
}

.network-pick {
  border: 0;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.network-pick label {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 500;
  color: var(--ink-muted);
}

.tool-result {
  margin-top: 1.25rem;
  padding: 1rem 1.1rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--accent-soft);
}

.tool-result[hidden] {
  display: none;
}

.tool-result.is-visible {
  display: block;
}

.tool-result.ok {
  border-color: rgba(94, 228, 168, 0.45);
  background: rgba(94, 228, 168, 0.1);
}

.tool-result.warn {
  border-color: rgba(240, 195, 106, 0.5);
  background: rgba(240, 195, 106, 0.1);
}

.tool-result.danger {
  border-color: rgba(255, 123, 114, 0.5);
  background: rgba(255, 123, 114, 0.1);
}

.result-title {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-weight: 700;
}

.tool-result p {
  margin: 0.35rem 0 0;
  color: var(--ink-muted);
}

.tool-result ul {
  margin: 0.5rem 0 0;
  padding-left: 1.15rem;
  color: var(--ink-muted);
}

.checklist {
  display: grid;
  gap: 0.75rem;
}

.checklist label {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.checklist label:hover {
  border-color: rgba(46, 229, 154, 0.4);
}

.checklist input {
  margin-top: 0.2rem;
  accent-color: var(--accent-deep);
}

.scam-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

.scam-list li {
  padding: 0 0 0 1.1rem;
  border-left: 3px solid var(--accent-deep);
}

.scam-list h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.scam-list p {
  margin: 0;
  color: var(--ink-muted);
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
  counter-reset: none;
}

.steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
}

.step-num {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 800;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid rgba(46, 229, 154, 0.35);
}

.steps h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
}

.steps p {
  margin: 0;
  color: var(--ink-muted);
}

.faq {
  display: grid;
  gap: 0.75rem;
}

.faq details {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(7, 20, 17, 0.4);
  padding: 0.35rem 1rem 0.35rem;
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
  padding: 0.9rem 0;
  list-style: none;
}

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

.faq summary::after {
  content: "+";
  float: right;
  color: var(--accent);
  font-weight: 700;
}

.faq details[open] summary::after {
  content: "–";
}

.faq p {
  margin: 0 0 1rem;
  color: var(--ink-muted);
}

.cta-band {
  padding: clamp(3rem, 7vw, 4.5rem) 0;
}

.cta-inner {
  text-align: center;
  padding: clamp(2rem, 5vw, 3rem);
  border-radius: calc(var(--radius) + 8px);
  border: 1px solid rgba(46, 229, 154, 0.28);
  background:
    radial-gradient(600px 200px at 50% 0%, rgba(46, 229, 154, 0.18), transparent 60%),
    rgba(13, 34, 28, 0.8);
}

.cta-inner h2 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  letter-spacing: -0.03em;
}

.cta-inner p {
  margin: 0 0 1.4rem;
  color: var(--ink-muted);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0 1.5rem;
  background: #06110e;
}

.footer-grid {
  display: grid;
  gap: 1.75rem;
}

.footer-grid a {
  display: block;
  color: var(--ink-muted);
  text-decoration: none;
  margin-top: 0.35rem;
}

.footer-grid a:hover {
  color: var(--accent);
}

.footer-label {
  margin: 0;
  font-weight: 700;
  color: var(--ink);
}

.footer-note {
  margin: 0.5rem 0 0;
  color: var(--ink-muted);
  max-width: 32ch;
  font-size: 0.95rem;
}

.footer-bottom {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.legal-page {
  padding: clamp(2.5rem, 6vw, 4rem) 0 4rem;
}

.legal-page h1 {
  font-family: var(--font-display);
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}

.legal-page h2 {
  font-family: var(--font-display);
  margin: 2rem 0 0.75rem;
  font-size: 1.25rem;
}

.legal-page p,
.legal-page li {
  color: var(--ink-muted);
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes glowPulse {
  0%,
  100% {
    opacity: 0.7;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.06);
  }
}

@keyframes gridDrift {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(48px);
  }
}

@keyframes drawShield {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes coinFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes ringOut {
  0% {
    transform: scale(0.85);
    opacity: 0.55;
  }
  100% {
    transform: scale(1.2);
    opacity: 0;
  }
}

@media (min-width: 768px) {
  .nav {
    display: flex;
  }

  .header-cta {
    display: inline-flex;
  }

  .menu-toggle {
    display: none;
  }

  .menu-mobile {
    display: none !important;
  }

  .hero {
    align-items: center;
    padding: 3rem 0 4rem;
  }

  .hero-content {
    max-width: 38rem;
  }

  .trust-inner {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }

  .scam-list {
    grid-template-columns: 1fr 1fr;
    gap: 1.75rem 2rem;
  }

  .steps {
    gap: 1.5rem;
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr;
  }

  .network-pick {
    grid-template-columns: repeat(3, auto);
    justify-content: start;
    gap: 1rem;
  }
}

@media (min-width: 1024px) {
  .hero-visual {
    width: min(42vw, 460px);
    right: max(4%, calc(50% - 520px));
  }

  .brand-hero {
    font-size: clamp(3.2rem, 6vw, 4.8rem);
  }
}

@media (max-width: 767px) {
  .hero-visual {
    position: absolute;
    right: -8%;
    top: 6%;
    width: min(68vw, 280px);
    transform: none;
    opacity: 0.55;
  }

  .hero-content {
    padding-top: min(42vw, 180px);
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}