:root {
  --header-h: 78px;
  --bg: #0B1B3D;
  --bg-deep: #081227;
  --bg-card: #10264A;
  --line: rgba(57, 255, 20, 0.25);
  --accent: #7B2FF7;
  --neon: #39FF14;
  --gold: #F5C518;
  --warn: #FF6A00;
  --text: #EAF2FF;
  --muted: #A8C0E0;
  --font-head: "Bahnschrift", "Arial Narrow", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --container: 1200px;
  --gutter: clamp(18px, 4vw, 40px);
  --radius: 14px;
  --shadow-sm: 0 4px 18px rgba(2, 6, 18, 0.35);
  --shadow-lg: 0 18px 48px rgba(2, 6, 18, 0.5);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--bg);
  background-image: linear-gradient(rgba(57, 255, 20, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(57, 255, 20, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
}

main {
  flex: 1 0 auto;
  display: block;
}

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1.15;
  color: #fff;
}

h1 {
  font-size: clamp(34px, 6vw, 72px);
}

h2 {
  font-size: clamp(24px, 3.6vw, 40px);
}

h3 {
  font-size: clamp(20px, 2.4vw, 28px);
}

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

::selection {
  background: var(--accent);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 1000;
  padding: 12px 20px;
  background: var(--neon);
  color: #0B1B3D;
  font-weight: 800;
  border-radius: 0 0 10px 0;
}

.skip-link:focus {
  left: 0;
}

[data-scroll-progress] {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 300;
  pointer-events: none;
}

[data-scroll-progress] span {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: left top;
  background: linear-gradient(90deg, var(--accent), var(--neon));
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.8);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 27, 61, 0.92);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(57, 255, 20, 0.18);
  box-shadow: 0 8px 32px rgba(2, 6, 18, 0.35);
}

.site-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 96px;
  height: 2px;
  background: var(--neon);
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.7);
}

.brand-strip {
  max-width: var(--container);
  margin: 0 auto;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 var(--gutter);
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 6px 2px 14px 2px;
  background: linear-gradient(135deg, var(--accent), #5A1FD0);
  color: #fff;
  font-family: var(--font-head);
  font-size: 21px;
  font-weight: 900;
  letter-spacing: 0.03em;
  line-height: 1;
  box-shadow: 0 0 20px rgba(123, 47, 247, 0.45);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  min-width: 0;
}

.brand-name {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: #fff;
}

.brand-domain {
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--muted);
  white-space: nowrap;
}

.brand--footer .brand-mark {
  width: 40px;
  height: 40px;
  font-size: 18px;
}

.main-nav-wrap {
  margin-left: auto;
  margin-right: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav-item {
  margin: 0;
}

.nav-link {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 9px 13px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  border: 1px solid transparent;
  transition: background 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.nav-link::before {
  content: attr(data-index);
  font-family: var(--font-head);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--neon);
  opacity: 0.75;
}

.nav-link:hover {
  color: #fff;
  background: rgba(168, 192, 224, 0.08);
  border-color: rgba(57, 255, 20, 0.18);
}

.nav-link[aria-current="page"] {
  color: #fff;
  background: linear-gradient(135deg, rgba(123, 47, 247, 0.32), rgba(11, 27, 61, 0.4));
  border-color: rgba(123, 47, 247, 0.7);
  box-shadow: 0 0 18px rgba(123, 47, 247, 0.22);
}

.nav-link[aria-current="page"]::before {
  opacity: 1;
  text-shadow: 0 0 8px var(--neon);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.fav-btn {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(168, 192, 224, 0.3);
  background: rgba(16, 38, 74, 0.5);
  color: var(--muted);
  transition: color 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.fav-btn svg {
  width: 16px;
  height: 16px;
  fill: transparent;
  stroke: currentColor;
  stroke-width: 1.6;
  transition: fill 0.2s;
}

.fav-btn:hover,
.fav-btn.is-on {
  color: var(--gold);
  border-color: var(--gold);
  box-shadow: 0 0 14px rgba(245, 197, 24, 0.25);
}

.fav-btn.is-on svg {
  fill: currentColor;
}

.member-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 999px;
  background: linear-gradient(100deg, #8a6108, #f5c518 45%, #ffe08a);
  color: #0B1B3D;
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.08em;
  box-shadow: 0 0 18px rgba(245, 197, 24, 0.22);
  transition: filter 0.2s, box-shadow 0.2s;
}

.member-btn svg {
  width: 14px;
  height: 14px;
}

.member-btn:hover {
  filter: brightness(1.08);
  box-shadow: 0 0 28px rgba(245, 197, 24, 0.4);
}

.member-label {
  display: inline-block;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(57, 255, 20, 0.25);
  color: var(--text);
}

.nav-toggle-bars {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}

.nav-toggle-text {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding-block: clamp(48px, 8vw, 96px);
}

.section-head {
  display: flex;
  align-items: flex-end;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.section-index {
  font-family: var(--font-head);
  font-size: clamp(52px, 9vw, 112px);
  font-weight: 900;
  line-height: 0.85;
  letter-spacing: -0.04em;
  color: rgba(57, 255, 20, 0.22);
  -webkit-text-stroke: 1px rgba(57, 255, 20, 0.45);
}

.section-title {
  font-size: clamp(26px, 3.6vw, 44px);
  font-weight: 900;
  letter-spacing: 0.02em;
  line-height: 1.1;
  color: #fff;
  margin-top: 8px;
}

.grid {
  display: grid;
  gap: 24px;
}

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

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  position: relative;
  overflow: hidden;
  padding: 26px;
  background: linear-gradient(155deg, var(--bg-card), rgba(16, 38, 74, 0.55));
  border: 1px solid rgba(57, 255, 20, 0.14);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--neon));
  opacity: 0;
  transition: opacity 0.3s;
}

.card:hover::after {
  opacity: 0.9;
}

.card--lift {
  transition: transform 0.25s, box-shadow 0.25s;
}

.card--lift:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card--accent::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 3px;
  background: var(--neon);
  box-shadow: 0 0 10px rgba(57, 255, 20, 0.5);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--neon);
  background: rgba(123, 47, 247, 0.14);
  border: 1px solid rgba(123, 47, 247, 0.5);
}

.tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

.tag--gold {
  color: var(--gold);
  border-color: rgba(245, 197, 24, 0.5);
  background: rgba(245, 197, 24, 0.08);
}

.stat {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 22px 24px;
  background: rgba(16, 38, 74, 0.55);
  border: 1px solid rgba(57, 255, 20, 0.16);
  border-radius: var(--radius);
  overflow: hidden;
}

.stat::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--neon);
  box-shadow: 0 0 8px var(--neon);
}

.stat-num {
  font-family: var(--font-head);
  font-size: clamp(30px, 3.6vw, 56px);
  font-weight: 900;
  line-height: 1;
  color: var(--neon);
  text-shadow: 0 0 16px rgba(57, 255, 20, 0.35);
  letter-spacing: 0.01em;
}

.stat-label {
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
}

.stat[data-trend="up"] .stat-num::after {
  content: "↑";
  font-size: 0.55em;
  color: var(--neon);
  margin-left: 4px;
}

.stat[data-trend="down"] .stat-num::after {
  content: "↓";
  font-size: 0.55em;
  color: var(--warn);
  margin-left: 4px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 14px;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
}

.btn svg {
  width: 16px;
  height: 16px;
}

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

.btn-primary {
  background: linear-gradient(135deg, #8B3FF9, var(--accent));
  color: #fff;
  box-shadow: 0 6px 22px rgba(123, 47, 247, 0.35);
}

.btn-primary:hover {
  box-shadow: 0 8px 30px rgba(123, 47, 247, 0.5);
  transform: translateY(-1px);
}

.btn-outline {
  border-color: rgba(57, 255, 20, 0.6);
  color: var(--neon);
  background: rgba(57, 255, 20, 0.06);
}

.btn-outline:hover {
  background: rgba(57, 255, 20, 0.14);
  box-shadow: 0 0 18px rgba(57, 255, 20, 0.15);
}

.btn-ghost {
  color: var(--text);
  background: rgba(168, 192, 224, 0.08);
}

.btn-ghost:hover {
  background: rgba(168, 192, 224, 0.14);
}

.img-frame {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid rgba(57, 255, 20, 0.18);
  background: linear-gradient(125deg, rgba(123, 47, 247, 0.22), rgba(11, 27, 61, 0.7) 55%, rgba(57, 255, 20, 0.1));
  box-shadow: var(--shadow-sm);
}

.img-frame::before {
  content: "";
  display: block;
  padding-top: 56.25%;
}

.img-frame--4x3::before {
  padding-top: 75%;
}

.img-frame--square::before {
  padding-top: 100%;
}

.img-frame > img,
.img-frame > video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-frame::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--neon));
  opacity: 0.65;
  mix-blend-mode: screen;
}

.prose {
  max-width: 760px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

.prose p {
  margin-bottom: 1.5em;
}

.prose h1,
.prose h2,
.prose h3 {
  margin: 1.6em 0 0.6em;
}

.prose a {
  color: var(--neon);
  border-bottom: 1px solid rgba(57, 255, 20, 0.35);
}

.prose ul {
  margin: 0 0 1.5em;
  padding-left: 1.2em;
}

.prose li {
  position: relative;
  padding-left: 1.2em;
  margin-bottom: 0.5em;
}

.prose li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--neon);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 8px;
  font-size: 14px;
  color: var(--muted);
}

.breadcrumb a {
  color: var(--muted);
  transition: color 0.2s;
}

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

.breadcrumb [aria-current="page"] {
  color: var(--text);
}

.feedback-notice {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 18px;
  border-radius: 10px;
  background: rgba(123, 47, 247, 0.14);
  border: 1px solid rgba(123, 47, 247, 0.35);
  color: var(--text);
  font-size: 14px;
}

.feedback-notice::before {
  content: "!";
  flex: 0 0 22px;
  height: 22px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  border-radius: 50%;
  font-size: 13px;
}

.site-footer {
  position: relative;
  background: var(--bg-deep);
  padding: 64px 0 28px;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--neon), var(--accent));
  opacity: 0.9;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 0.9fr;
  gap: 40px;
  align-items: start;
}

.footer-brand .brand {
  margin-bottom: 18px;
}

.footer-trust {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 340px;
}

.footer-column {
  min-width: 0;
}

.footer-heading {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--neon);
  margin: 0 0 18px;
}

.footer-contact li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 14px;
  line-height: 1.7;
}

.footer-contact span {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
}

.footer-contact strong {
  font-weight: 500;
  color: var(--text);
}

.footer-linklist li {
  margin-bottom: 8px;
}

.footer-linklist a {
  color: var(--muted);
  transition: color 0.2s, padding-left 0.2s;
}

.footer-linklist a::before {
  content: "▹";
  color: var(--accent);
  margin-right: 8px;
}

.footer-linklist a:hover {
  color: var(--neon);
  padding-left: 4px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid rgba(168, 192, 224, 0.15);
  font-size: 13px;
  color: var(--muted);
}

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
}

html.js [data-reveal].is-inview {
  opacity: 1;
  transform: none;
}

@media (min-width: 941px) {
  .nav-toggle {
    display: none;
  }
}

@media (max-width: 940px) {
  :root {
    --header-h: 60px;
  }

  .brand-strip {
    gap: 10px;
  }

  .main-nav-wrap {
    margin-left: auto;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .header-actions {
    margin-left: 0;
  }

  .nav-shell {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    padding: 18px var(--gutter) 22px;
    background: linear-gradient(180deg, #081227 0%, #0B1B3D 100%);
    border-bottom: 2px solid rgba(123, 47, 247, 0.8);
    box-shadow: 0 24px 48px rgba(2, 6, 18, 0.55);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }

  .nav-shell[data-open] {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    display: flex;
    align-items: center;
    width: 100%;
    border-radius: 10px;
    padding: 13px 14px;
    font-size: 15px;
  }

  .nav-link:hover {
    background: rgba(168, 192, 224, 0.08);
  }

  .nav-link[aria-current="page"] {
    background: rgba(123, 47, 247, 0.16);
  }

  .nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] .toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 900px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 901px) and (max-width: 1180px) {
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    grid-column: auto;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-actions .fav-btn {
    width: 36px;
    height: 36px;
  }
}

@media (max-width: 520px) {
  .brand-domain {
    display: none;
  }

  .member-label {
    display: none;
  }

  .member-btn {
    padding: 9px 11px;
  }
}

@media (max-width: 380px) {
  .nav-toggle-text {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .card--lift:hover,
  .btn:hover,
  .btn-primary:hover {
    transform: none;
  }
}