:root {
  --color-bg: #0F1025;
  --color-bg-card: #1C1E3A;
  --color-accent: #FF7A00;
  --color-accent-soft: #FF9A3D;
  --color-success: #00D4AA;
  --color-text: #FFFFFF;
  --color-text-secondary: #B8BACE;
  --color-border: #3D3F63;
  --color-highlight: #FFD666;
  --font-headline: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Noto Serif SC', 'Source Han Serif SC', 'Songti SC', serif;
  --header-height: 76px;
  --radius: 16px;
  --content-max: 1440px;
  --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.28);
}

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

* {
  margin: 0;
}

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

body {
  min-height: 100vh;
  padding-top: var(--header-height);
  background:
    radial-gradient(1100px 480px at 85% -2%, rgba(255, 122, 0, 0.09), transparent 60%),
    radial-gradient(800px 420px at 8% 108%, rgba(0, 212, 170, 0.05), transparent 55%),
    var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--color-accent-soft);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-headline);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.4em;
}

h1 { font-size: 48px; }
h2 { font-size: 36px; }
h3 { font-size: 24px; }
h4 { font-size: 20px; }

ul[class], ol[class] {
  list-style: none;
  padding: 0;
}

[hidden] {
  display: none !important;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: fixed;
  top: -100%;
  left: 16px;
  z-index: 9999;
  display: inline-block;
  padding: 12px 20px;
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 700;
  border-radius: 8px;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  transition: top 0.2s ease;
}

.skip-link:focus-visible {
  top: 16px;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  z-index: 9998;
  background: linear-gradient(90deg, var(--color-accent), var(--color-highlight));
  transition: width 0.05s linear;
  pointer-events: none;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  transition: background-color 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}

.site-header[data-scrolled="true"] {
  background: rgba(15, 16, 37, 0.9);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(61, 63, 99, 0.6);
}

.site-header__inner {
  max-width: var(--content-max);
  height: var(--header-height);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
  color: var(--color-text);
}

.brand:hover {
  color: var(--color-text);
}

.brand__logo {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-soft) 100%);
  color: #fff;
  font-family: var(--font-headline);
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 0.02em;
  transform: skewX(-12deg);
  box-shadow: 0 4px 18px rgba(255, 122, 0, 0.35);
}

.brand__text {
  font-family: var(--font-headline);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.site-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  padding: 0;
}

.site-nav__link {
  display: block;
  padding: 10px 14px;
  border-radius: 8px;
  font-family: var(--font-headline);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-text-secondary);
  transition: color 0.25s ease, background-color 0.25s ease;
}

.site-nav__link:hover {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.06);
}

.site-nav__link[aria-current="page"] {
  color: var(--color-accent);
  background: rgba(255, 122, 0, 0.12);
}

.account-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 18px;
  margin-left: 10px;
  border: 1px solid rgba(255, 122, 0, 0.5);
  border-radius: 20px;
  background: rgba(255, 122, 0, 0.12);
  color: #fff;
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.account-btn:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 20px rgba(255, 122, 0, 0.3);
}

.account-btn__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.2);
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
}

.nav-toggle__bar {
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: #fff;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.container {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: 96px 0;
  position: relative;
}

.section--band {
  background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg) 100%);
}

.section__header {
  margin-bottom: 48px;
}

.section__number {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  font-family: var(--font-headline);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.section__number::after {
  content: '';
  height: 1px;
  width: 52px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
}

.section-title {
  font-size: clamp(28px, 4.5vw, 36px);
  margin-bottom: 12px;
}

.section__description {
  max-width: 640px;
  color: var(--color-text-secondary);
  font-size: 16px;
}

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

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

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

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 122, 0, 0.4);
  box-shadow: var(--shadow-card);
}

.card-title {
  font-family: var(--font-headline);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 28px;
  border: 2px solid transparent;
  border-radius: 24px;
  background: transparent;
  font-family: var(--font-headline);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

.btn:hover {
  text-decoration: none;
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 6px 24px rgba(255, 122, 0, 0.25);
}

.btn--primary:hover {
  background: var(--color-accent-soft);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(255, 122, 0, 0.35);
}

.btn--outline {
  border-color: var(--color-border);
  color: var(--color-text);
}

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

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 999px;
  font-family: var(--font-headline);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.tag--success {
  background: rgba(0, 212, 170, 0.14);
  color: var(--color-success);
}

.tag--warning {
  background: rgba(255, 214, 102, 0.14);
  color: var(--color-highlight);
}

.tag--accent {
  background: rgba(255, 122, 0, 0.16);
  color: var(--color-accent);
}

.stat__value {
  font-family: var(--font-headline);
  font-size: clamp(44px, 6vw, 64px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-highlight);
}

.stat__value--accent {
  color: var(--color-accent);
}

.stat__label {
  margin-top: 10px;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 24px 0;
  list-style: none;
  font-family: var(--font-headline);
  font-size: 14px;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb li + li::before {
  content: '/';
  color: var(--color-border);
}

.breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: none;
}

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

.breadcrumb [aria-current="page"] {
  color: var(--color-text);
  font-weight: 600;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0 20px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text-secondary);
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 600;
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

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

.filter-btn[data-active="true"] {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 16px rgba(255, 122, 0, 0.35);
}

.pic {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background:
    radial-gradient(120% 80% at 20% 0%, rgba(255, 122, 0, 0.12), transparent 50%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.01));
}

.pic img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: calc(var(--radius) - 1px);
}

.pic--16-9 {
  aspect-ratio: 16 / 9;
}

.pic--4-3 {
  aspect-ratio: 4 / 3;
}

.pic--1-1 {
  aspect-ratio: 1 / 1;
}

.page-title {
  font-size: clamp(40px, 7vw, 64px);
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.page-intro {
  max-width: 680px;
  font-size: 18px;
  line-height: 1.8;
  color: var(--color-text-secondary);
}

.prose {
  max-width: 760px;
  color: var(--color-text-secondary);
  line-height: 1.9;
}

.prose > * + * {
  margin-top: 1.2em;
}

.prose h2 {
  margin-top: 2em;
  color: var(--color-text);
}

.prose a {
  color: var(--color-accent);
}

.table-wrap {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-bg-card);
  border-radius: var(--radius);
  overflow: hidden;
}

.data-table th,
.data-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid rgba(61, 63, 99, 0.5);
  white-space: nowrap;
}

.data-table th {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  background: rgba(255, 255, 255, 0.03);
}

.data-table td {
  color: var(--color-text);
  font-size: 15px;
}

.data-table tbody tr:hover {
  background: rgba(255, 122, 0, 0.06);
}

.data-table tr:last-child td {
  border-bottom: 0;
}

.site-footer {
  position: relative;
  margin-top: 96px;
  background: #0B0C1D;
  border-top: 1px solid var(--color-border);
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-success) 60%, transparent);
}

.site-footer__top {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 64px 32px 48px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.brand--footer .brand__logo {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-highlight) 100%);
  box-shadow: none;
}

.site-footer__trust {
  max-width: 360px;
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.8;
}

.site-footer__heading {
  font-family: var(--font-headline);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-text);
  margin-bottom: 16px;
}

.site-footer__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  list-style: none;
  padding: 0;
  color: var(--color-text-secondary);
  font-size: 14px;
}

.site-footer__list a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.site-footer__list a:hover {
  color: var(--color-accent);
}

.site-footer__bottom {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 20px 32px;
  border-top: 1px solid rgba(61, 63, 99, 0.4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: var(--color-text-secondary);
  font-size: 14px;
}

@media (max-width: 1199px) {
  .site-header__inner {
    padding: 0 24px;
  }

  .site-nav__link {
    padding: 8px 10px;
    font-size: 14px;
  }

  .account-btn {
    padding: 0 14px;
  }

  .container,
  .site-footer__top,
  .site-footer__bottom {
    padding-left: 24px;
    padding-right: 24px;
  }
}

@media (max-width: 991px) {
  .site-header__inner {
    padding: 0 16px;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(320px, 85vw);
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    margin: 0;
    padding: 88px 24px 32px;
    background: #14152D;
    box-shadow: -12px 0 32px rgba(0, 0, 0, 0.4);
    transform: translateX(100%);
    transition: transform 0.35s ease;
    z-index: 1001;
    overflow-y: auto;
  }

  .site-nav[data-open="true"] {
    transform: translateX(0);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__item {
    border-bottom: 1px solid rgba(61, 63, 99, 0.4);
  }

  .site-nav__link {
    padding: 16px 12px;
    font-size: 18px;
    border-radius: 0;
  }

  .account-btn {
    width: 44px;
    height: 44px;
    margin-left: auto;
    padding: 0;
    border-radius: 50%;
  }

  .account-btn__text {
    display: none;
  }

  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    gap: 5px;
    margin-left: 8px;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    position: relative;
    z-index: 1002;
    transition: border-color 0.2s ease, background-color 0.2s ease;
  }

  .nav-toggle:hover {
    border-color: var(--color-accent);
    background: rgba(255, 122, 0, 0.08);
  }

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

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

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

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

  .site-footer__top {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }

  .section {
    padding: 72px 0;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .container {
    padding: 0 16px;
  }

  .site-footer__top,
  .site-footer__bottom {
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-footer__top {
    grid-template-columns: 1fr;
    padding-top: 48px;
    padding-bottom: 32px;
    gap: 32px;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 16px;
    padding-bottom: 24px;
  }

  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 56px 0;
  }

  .card {
    padding: 24px;
  }
}

@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;
  }

  .site-header {
    transition: none;
  }

  .scroll-progress {
    transition: none;
  }

  .site-nav {
    transition: none;
  }

  .card {
    transition: none;
  }

  .btn {
    transition: none;
  }
}