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

:root {
  --ink-900: #0A1F44;
  --ink-700: #1B3A6B;
  --ink-500: #2E5A88;
  --orange-500: #FF6B35;
  --gold-400: #FFD700;
  --cyan-300: #35E0FF;
  --bone-100: #F5F1E8;
  --light-100: #E8EDF5;
  --muted-300: #A8B6CC;
  --header-width: clamp(280px, 38vw, 560px);
  --font-heading: "Impact", "Arial Black", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-number: "DIN Alternate", "Bebas Neue", "Roboto Mono", monospace;
  --radius-lg: 32px;
  --radius-md: 20px;
  --radius-sm: 12px;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --transition: 320ms var(--ease);
}

@media (max-width: 760px) {
  :root {
    --header-width: 0px;
  }
}

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

body {
  margin: 0;
  min-height: 100vh;
  padding-left: var(--header-width);
  background: var(--ink-900);
  color: var(--light-100);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: var(--header-width);
  z-index: 0;
  background-image:
    linear-gradient(rgba(46, 90, 136, .12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46, 90, 136, .08) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}

h1,
h2,
h3,
h4 {
  margin-top: 0;
  font-family: var(--font-heading);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: .02em;
  color: var(--light-100);
}

h1 {
  font-size: clamp(2rem, 5.4vw, 4.6rem);
}

h2 {
  font-size: clamp(1.6rem, 3.4vw, 3rem);
}

h3 {
  font-size: clamp(1.1rem, 1.8vw, 1.6rem);
}

p {
  margin-top: 0;
}

a {
  color: inherit;
}

button {
  font: inherit;
  cursor: pointer;
}

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

:focus-visible {
  outline: 3px solid var(--orange-500);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: fixed;
  top: .75rem;
  left: .75rem;
  z-index: 300;
  padding: .65rem 1rem;
  border-radius: 999px;
  background: var(--gold-400);
  color: var(--ink-900);
  font-size: .9rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .35);
  transform: translateY(-250%);
  transition: transform .25s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

#main-content {
  display: block;
  position: relative;
  z-index: 1;
  min-height: 70vh;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  width: var(--header-width);
  min-height: 100vh;
  padding: clamp(20px, 3vw, 40px);
  overflow-y: auto;
  color: var(--light-100);
  background:
    linear-gradient(155deg, rgba(53, 224, 255, .08) 0%, transparent 32%),
    linear-gradient(145deg, #0e2b58 0%, #081836 55%, #050d1f 100%);
  border-right: 1px solid rgba(46, 90, 136, .55);
  box-shadow: 8px 0 30px rgba(0, 0, 0, .25);
}

.site-header::before {
  content: "";
  position: absolute;
  top: -70px;
  right: -70px;
  width: 230px;
  height: 230px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 53, .28), transparent 65%);
  pointer-events: none;
  z-index: 0;
}

.site-header::after {
  content: "";
  position: absolute;
  left: 24px;
  bottom: 110px;
  width: 130px;
  height: 70px;
  border: 1px solid rgba(53, 224, 255, .14);
  border-radius: 50%;
  transform: rotate(-12deg);
  pointer-events: none;
  z-index: 0;
}

.site-header > * {
  position: relative;
  z-index: 1;
}

.site-progress {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 5;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange-500), var(--gold-400));
  border-radius: 0 999px 999px 0;
  box-shadow: 0 0 10px rgba(255, 107, 53, .5);
  pointer-events: none;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 100%;
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
}

.brand-mark {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 28%, #fff 0%, var(--gold-400) 26%, var(--orange-500) 62%, #c93a12 100%);
  color: var(--ink-900);
  font-family: var(--font-number);
  font-weight: 900;
  font-size: 1.1rem;
  box-shadow:
    inset -3px -4px 8px rgba(0, 0, 0, .25),
    0 0 0 4px rgba(255, 107, 53, .18),
    0 0 28px rgba(255, 107, 53, .28);
}

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

.brand-name {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 2.3vw, 2.2rem);
  line-height: 1;
  white-space: nowrap;
  color: var(--light-100);
}

.brand-slogan {
  margin-top: .4rem;
  overflow: hidden;
  color: var(--muted-300);
  font-size: .78rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.site-nav {
  margin-top: clamp(32px, 6vh, 76px);
}

.nav-list {
  list-style: none;
  display: grid;
  gap: .25rem;
  margin: 0;
  padding: 0;
}

.nav-link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: .8rem;
  padding: .78rem .5rem .78rem .65rem;
  border-bottom: 1px solid rgba(232, 237, 245, .08);
  border-radius: 14px;
  color: var(--light-100);
  font-size: 1.02rem;
  font-weight: 500;
  text-decoration: none;
  transition:
    background var(--transition),
    color var(--transition),
    padding-left var(--transition),
    border-color var(--transition);
}

.nav-link:hover {
  padding-left: .85rem;
  background: linear-gradient(90deg, rgba(255, 107, 53, .16), rgba(255, 107, 53, .02));
  border-color: rgba(255, 107, 53, .45);
  color: #fff;
}

.nav-index {
  min-width: 1.8rem;
  color: var(--orange-500);
  font-family: var(--font-number);
  font-size: .78rem;
  letter-spacing: .05em;
}

.nav-link[aria-current="page"] {
  background: rgba(255, 215, 0, .06);
  color: var(--gold-400);
}

.nav-link[aria-current="page"] .nav-index {
  color: var(--gold-400);
}

.nav-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  top: 50%;
  right: .5rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange-500);
  box-shadow: 0 0 12px var(--orange-500);
  transform: translateY(-50%);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .75rem 1.35rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: .95rem;
  font-weight: 600;
  text-decoration: none;
  transition:
    background var(--transition),
    border-color var(--transition),
    color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.btn-primary {
  background: var(--orange-500);
  color: var(--ink-900);
  box-shadow: 0 8px 24px rgba(255, 107, 53, .3);
}

.btn-primary:hover {
  background: #ff8350;
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(255, 107, 53, .4);
}

.btn-secondary {
  background: rgba(53, 224, 255, .08);
  border-color: rgba(53, 224, 255, .32);
  color: var(--cyan-300);
}

.btn-secondary:hover {
  background: rgba(53, 224, 255, .16);
  border-color: var(--cyan-300);
  color: #fff;
  transform: translateY(-2px);
}

.header-cta {
  align-self: flex-start;
  margin-top: clamp(24px, 4vh, 44px);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: .45rem;
  padding: .55rem .75rem;
  border: 1px solid rgba(232, 237, 245, .18);
  border-radius: 999px;
  background: rgba(27, 58, 107, .4);
  color: var(--light-100);
}

.nav-toggle-icon {
  display: block;
  position: relative;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: background .2s ease;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform .25s ease;
}

.nav-toggle-icon::before {
  top: -5px;
}

.nav-toggle-icon::after {
  top: 5px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.nav-toggle-text::after {
  content: "菜单";
  font-size: .85rem;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-text::after {
  content: "关闭";
}

.header-note {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-top: auto;
  padding-top: clamp(20px, 3vh, 32px);
  border-top: 1px solid rgba(46, 90, 136, .3);
  color: var(--muted-300);
  font-size: .75rem;
  letter-spacing: .08em;
}

.note-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan-300);
  box-shadow: 0 0 10px var(--cyan-300);
  animation: pulse 3s ease-in-out infinite;
}

.site-footer {
  position: relative;
  z-index: 1;
  padding: clamp(36px, 6vw, 88px) clamp(24px, 4vw, 64px);
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(27, 58, 107, .15), rgba(5, 13, 31, .98)),
    var(--ink-900);
  border-top: 1px solid rgba(46, 90, 136, .5);
}

.site-footer::before {
  content: "";
  position: absolute;
  right: -6rem;
  bottom: -9rem;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 53, .16), transparent 65%);
  pointer-events: none;
}

.site-footer::after {
  content: "";
  position: absolute;
  top: -2rem;
  left: 20%;
  width: 45%;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--cyan-300), var(--gold-400), transparent);
  opacity: .35;
  pointer-events: none;
}

.footer-shell {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1.4fr);
  gap: clamp(28px, 5vw, 72px);
}

.footer-brand {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.4vw, 3.4rem);
  line-height: 1;
  color: var(--light-100);
}

.footer-tagline {
  margin-top: .75rem;
  color: var(--gold-400);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .08em;
}

.trust-note {
  max-width: 56ch;
  margin-top: 1.4rem;
  padding-left: 1rem;
  border-left: 3px solid var(--orange-500);
  color: var(--muted-300);
  font-size: .9rem;
  line-height: 1.8;
}

.footer-legal {
  display: grid;
  gap: .5rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(46, 90, 136, .35);
}

.footer-legal p {
  margin: 0;
  color: var(--muted-300);
  font-size: .85rem;
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: .25rem 1.1rem;
}

.footer-icp {
  font-family: var(--font-number);
  letter-spacing: .05em;
}

.footer-heading {
  margin: 0 0 1rem;
  color: var(--cyan-300);
  font-family: var(--font-body);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.footer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .45rem;
}

.footer-link {
  color: var(--light-100);
  font-size: .95rem;
  text-decoration: none;
  transition: color var(--transition), padding-left var(--transition);
}

.footer-link:hover {
  padding-left: .25rem;
  color: var(--orange-500);
}

.footer-contact {
  display: grid;
  align-content: start;
  gap: .65rem;
}

.contact-line {
  margin: 0;
  color: var(--muted-300);
  font-family: var(--font-number);
  font-size: .92rem;
  line-height: 1.6;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: clamp(24px, 4vw, 64px);
}

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

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 0 0 2rem;
  padding: 0;
  list-style: none;
  color: var(--muted-300);
  font-size: .9rem;
}

.breadcrumb li + li::before {
  content: "/";
  margin-right: .5rem;
  color: var(--ink-500);
}

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

.breadcrumb a:hover {
  color: var(--orange-500);
}

.breadcrumb [aria-current] {
  color: var(--gold-400);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2.4vw, 32px);
}

.col-4,
.col-6,
.col-8,
.col-12 {
  grid-column: 1 / -1;
}

@media (min-width: 761px) {
  .col-4 {
    grid-column: span 4;
  }
  .col-6 {
    grid-column: span 6;
  }
  .col-8 {
    grid-column: span 8;
  }
  .col-12 {
    grid-column: span 12;
  }
}

.card {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid rgba(46, 90, 136, .45);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(27, 58, 107, .85), rgba(10, 31, 68, .95));
}

.card h3 {
  margin-bottom: .75rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .28rem .7rem;
  border: 1px solid rgba(53, 224, 255, .3);
  border-radius: 999px;
  background: rgba(53, 224, 255, .12);
  color: var(--cyan-300);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
}

.segments {
  display: inline-flex;
  flex-wrap: wrap;
  gap: .35rem;
  padding: .25rem;
  border: 1px solid rgba(46, 90, 136, .4);
  border-radius: 999px;
  background: rgba(27, 58, 107, .6);
}

.segment {
  padding: .45rem 1rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted-300);
  font-family: var(--font-body);
}

.segment:hover {
  background: rgba(53, 224, 255, .1);
  color: var(--light-100);
}

.segment[aria-selected="true"] {
  background: var(--orange-500);
  color: var(--ink-900);
  font-weight: 700;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid rgba(46, 90, 136, .35);
  border-radius: var(--radius-md);
  background: rgba(10, 31, 68, .55);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-body);
}

.data-table caption {
  margin-bottom: .5rem;
  text-align: left;
  color: var(--muted-300);
}

.data-table th,
.data-table td {
  padding: .75rem .6rem;
  border-bottom: 1px solid rgba(46, 90, 136, .35);
  text-align: left;
}

.data-table th {
  color: var(--cyan-300);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.data-table td {
  color: var(--light-100);
}

.data-table .num {
  color: var(--gold-400);
  font-family: var(--font-number);
  font-size: 1.12rem;
  font-weight: 700;
}

.visual-panel {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 240px;
  padding: 24px;
  overflow: hidden;
  border: 1px solid rgba(53, 224, 255, .28);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(53, 224, 255, .12), rgba(255, 107, 53, .14)),
    var(--ink-700);
  color: var(--muted-300);
  font-family: var(--font-number);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.visual-panel::before {
  content: "";
  position: absolute;
  inset: 8%;
  border: 1px dashed rgba(255, 215, 0, .28);
  border-radius: 30% 70% 60% 40% / 50% 45% 55% 50%;
  animation: drift 6s ease-in-out infinite alternate;
}

.visual-panel::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 28%, #fff, var(--orange-500) 42%, #a32b12 100%);
  box-shadow:
    0 0 0 10px rgba(255, 107, 53, .12),
    0 0 40px rgba(255, 107, 53, .4);
  transform: translate(-50%, -50%);
}

.visual-caption {
  position: relative;
  z-index: 1;
  padding: .35rem .9rem;
  border: 1px solid rgba(53, 224, 255, .3);
  border-radius: 999px;
  background: rgba(10, 31, 68, .72);
  color: var(--light-100);
}

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 420ms var(--ease), transform 420ms var(--ease);
  will-change: opacity, transform;
}

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

@keyframes pulse {
  0%,
  100% {
    opacity: .6;
    transform: scale(.9);
  }
  50% {
    opacity: 1;
    transform: scale(1.25);
  }
}

@keyframes drift {
  from {
    transform: rotate(0deg) scale(1);
  }
  to {
    transform: rotate(8deg) scale(1.04);
  }
}

@media (max-width: 900px) {
  .footer-shell {
    grid-template-columns: 1fr 1fr;
  }
  .footer-main {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .footer-shell {
    grid-template-columns: 1fr;
  }
  .footer-main {
    grid-column: auto;
  }
}

@media (max-width: 760px) {
  body {
    padding-left: 0;
  }

  .site-header {
    position: sticky;
    top: 0;
    bottom: auto;
    width: 100%;
    min-height: 0;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: .65rem;
    padding: .65rem .75rem;
    border-right: 0;
    border-bottom: 1px solid rgba(46, 90, 136, .5);
    box-shadow: 0 4px 20px rgba(0, 0, 0, .25);
  }

  .site-header::before {
    top: -50px;
    right: -50px;
    width: 160px;
    height: 160px;
  }

  .site-header::after {
    display: none;
  }

  .brand-lockup {
    order: 1;
    flex: 1 1 auto;
    gap: .55rem;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
    font-size: .88rem;
    box-shadow:
      inset -2px -3px 6px rgba(0, 0, 0, .28),
      0 0 0 3px rgba(255, 107, 53, .2),
      0 0 18px rgba(255, 107, 53, .3);
  }

  .brand-name {
    font-size: 1.38rem;
  }

  .brand-slogan {
    display: none;
  }

  .header-cta {
    order: 2;
    flex: 0 0 auto;
    margin-top: 0;
    padding: .5rem .8rem;
    font-size: .78rem;
    white-space: nowrap;
  }

  .site-nav {
    order: 4;
    display: none;
    width: 100%;
    margin-top: .6rem;
    padding-top: .55rem;
    border-top: 1px solid rgba(46, 90, 136, .45);
  }

  .site-nav[data-open="true"] {
    display: block;
  }

  .nav-list {
    gap: 0;
  }

  .nav-link {
    padding: .7rem .55rem;
    border-radius: 12px;
  }

  .nav-toggle {
    order: 3;
    display: inline-flex;
    flex: 0 0 auto;
    margin: 0;
    padding: .55rem .75rem;
    border: 1px solid rgba(232, 237, 245, .16);
    border-radius: 999px;
    background: rgba(27, 58, 107, .5);
    color: var(--light-100);
  }

  .header-note {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }

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