:root {
  --c-deep-blue: #0A2540;
  --c-orange: #FF6B2C;
  --c-cream: #F5EFE0;
  --c-white: #FFFFFF;
  --c-ink: #1F2937;
  --c-gray: #6B7280;
  --c-border: #D1D5DB;
  --c-night: #0F172A;
  --c-orange-soft: #FFF3E0;
  --font-body: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-data: "Roboto Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --side-nav: 284px;
  --shadow-hard: 6px 6px 0 rgba(10, 37, 64, 0.14);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--c-cream);
  background-image:
    linear-gradient(rgba(10, 37, 64, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 37, 64, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  color: var(--c-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.05em;
  padding-left: var(--side-nav);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p, ul, ol, figure, blockquote {
  margin: 0;
}

ul, ol {
  padding: 0;
}

a {
  color: var(--c-deep-blue);
}

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

button {
  font: inherit;
  border: 0;
}

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

#main-content {
  display: block;
  min-height: 70vh;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 2000;
  background: var(--c-deep-blue);
  color: var(--c-white);
  border: 2px solid var(--c-orange);
  padding: 10px 14px;
  text-decoration: none;
  font-weight: 700;
  transform: translateY(-220%);
  transition: transform 0.2s ease;
}

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

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--side-nav);
  background: linear-gradient(180deg, #0B2D4E 0%, var(--c-deep-blue) 100%);
  border-right: 3px solid var(--c-orange);
  z-index: 1000;
}

.site-header-inner {
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 24px 20px;
  overflow-y: auto;
}

.brand-lockup {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  background: var(--c-orange);
  color: var(--c-deep-blue);
  border: 2px solid var(--c-deep-blue);
  font-size: 24px;
  font-weight: 900;
  transform: rotate(-4deg);
  box-shadow: 3px 3px 0 rgba(255, 255, 255, 0.2);
}

.brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-cn {
  color: var(--c-white);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.brand-sub {
  margin-top: 4px;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
}

.brand-note {
  border-left: 2px solid var(--c-orange);
  padding-left: 12px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.06em;
}

.site-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 0;
}

.nav-rule {
  display: block;
  height: 2px;
  margin: 18px 0;
  background: linear-gradient(90deg, var(--c-orange), rgba(255, 255, 255, 0.14), transparent);
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list li + li {
  margin-top: 4px;
}

.nav-list a {
  display: block;
  padding: 12px 14px;
  border-left: 2px solid transparent;
  color: #dbe3ec;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.35;
  text-decoration: none;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.nav-list a:hover {
  color: var(--c-white);
  background: rgba(255, 255, 255, 0.07);
  border-left-color: var(--c-orange);
}

.site-nav a[aria-current="page"] {
  background: var(--c-orange);
  border-left-color: var(--c-deep-blue);
  color: var(--c-deep-blue);
  box-shadow: 3px 3px 0 rgba(255, 255, 255, 0.15);
}

.header-meta {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.daily-badge {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #dbe3ec;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.daily-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-orange);
  animation: dot-pulse 2s ease-in-out infinite;
}

@keyframes dot-pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(255, 107, 44, 0.6);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(255, 107, 44, 0);
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border: 2px solid var(--c-deep-blue);
  background: var(--c-white);
  color: var(--c-deep-blue);
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  box-shadow: 4px 4px 0 rgba(10, 37, 64, 0.12);
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.btn:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 rgba(10, 37, 64, 0.12);
}

.btn-primary {
  background: var(--c-orange);
  color: var(--c-deep-blue);
  border-color: var(--c-deep-blue);
}

.btn-dark {
  background: var(--c-deep-blue);
  color: var(--c-white);
}

.btn-ghost {
  background: transparent;
  box-shadow: none;
  border-style: dashed;
}

.btn-download {
  background: var(--c-orange);
  color: var(--c-deep-blue);
  border-color: var(--c-deep-blue);
  box-shadow: 4px 4px 0 rgba(255, 255, 255, 0.18);
}

.btn-download:hover {
  background: #ffd5bd;
  box-shadow: 2px 2px 0 rgba(255, 255, 255, 0.18);
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 2px;
  color: var(--c-white);
  cursor: pointer;
}

.nav-toggle:hover {
  border-color: var(--c-orange);
  color: var(--c-orange);
}

.nav-toggle-box {
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
  width: 20px;
  height: 15px;
}

.nav-toggle-box span {
  display: block;
  height: 2px;
  background: currentColor;
  transition: transform 0.18s ease, opacity 0.18s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-box span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle-box span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.nav-toggle-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.site-footer {
  background: var(--c-night);
  border-top: 3px solid var(--c-orange);
  color: #cbd5e1;
  padding: 56px 0 24px;
}

.site-footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
  display: grid;
  grid-template-columns: 1.4fr 2fr 1.4fr;
  gap: clamp(24px, 4vw, 56px);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--c-white);
  text-decoration: none;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.footer-mark {
  width: 42px;
  height: 42px;
  font-size: 21px;
  border: 2px solid var(--c-orange);
  box-shadow: none;
}

.footer-trust {
  color: #94a3b8;
  font-size: 14px;
  line-height: 1.8;
  max-width: 34em;
}

.footer-note {
  border-left: 2px solid var(--c-orange);
  padding-left: 12px;
  color: #94a3b8;
  font-size: 13px;
  line-height: 1.7;
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-col a {
  display: inline-block;
  padding: 5px 0;
  color: #94a3b8;
  text-decoration: none;
  font-size: 14px;
}

.footer-col a:hover {
  color: var(--c-orange);
}

.footer-heading {
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-orange);
  color: var(--c-white);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.footer-contact p {
  margin: 6px 0;
  color: #94a3b8;
  font-size: 14px;
  line-height: 1.7;
}

.footer-bottom {
  max-width: 1240px;
  margin: 40px auto 0;
  padding: 20px clamp(20px, 4vw, 48px) 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 24px;
  color: #64748b;
  font-size: 13px;
}

.footer-bottom p {
  margin: 0;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

.page-content {
  padding: clamp(28px, 6vw, 72px) clamp(20px, 4vw, 56px);
}

.section {
  margin: clamp(56px, 8vw, 96px) 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--c-deep-blue);
}

.section-kicker {
  display: block;
  color: var(--c-orange);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.section-title {
  margin-top: 6px;
  color: var(--c-deep-blue);
  font-size: clamp(26px, 4vw, 44px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.lead {
  color: var(--c-ink);
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.8;
  max-width: 64ch;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(16px, 2vw, 32px);
}

.grid-span-2 {
  grid-column: span 2;
}

.grid-span-3 {
  grid-column: span 3;
}

.grid-span-4 {
  grid-column: span 4;
}

.grid-span-5 {
  grid-column: span 5;
}

.grid-span-6 {
  grid-column: span 6;
}

.grid-span-7 {
  grid-column: span 7;
}

.grid-span-8 {
  grid-column: span 8;
}

.grid-span-9 {
  grid-column: span 9;
}

.grid-span-10 {
  grid-column: span 10;
}

.grid-span-11 {
  grid-column: span 11;
}

.grid-span-12 {
  grid-column: span 12;
}

.panel {
  background: var(--c-white);
  border: 2px solid var(--c-deep-blue);
  box-shadow: var(--shadow-hard);
  padding: clamp(18px, 3vw, 32px);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--c-orange-soft);
  border: 1px solid var(--c-orange);
  color: var(--c-deep-blue);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.data-number {
  font-family: var(--font-data);
  font-size: clamp(32px, 5vw, 64px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  color: var(--c-deep-blue);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  color: var(--c-gray);
  font-size: 14px;
}

.breadcrumb a {
  color: var(--c-deep-blue);
  text-decoration: none;
  font-weight: 700;
}

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

.breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  color: var(--c-border);
}

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

.media-frame {
  position: relative;
  overflow: hidden;
  background: var(--c-deep-blue);
  border: 2px solid var(--c-deep-blue);
  box-shadow: var(--shadow-hard);
  aspect-ratio: 16 / 9;
}

.media-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #0F172A 0%, var(--c-deep-blue) 55%, #1E3A5F 100%);
}

.media-frame::after {
  content: attr(data-label);
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 8px 12px;
  background: rgba(10, 37, 64, 0.78);
  color: rgba(255, 255, 255, 0.88);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.media-frame:not([data-label])::after {
  display: none;
}

.media-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.segmented {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px;
  background: var(--c-deep-blue);
  border: 2px solid var(--c-deep-blue);
}

.segmented [data-tab-target] {
  appearance: none;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.82);
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
}

.segmented [data-tab-target]:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--c-white);
}

.segmented [data-tab-target][aria-selected="true"] {
  background: var(--c-orange);
  color: var(--c-deep-blue);
}

[data-tab-panel] {
  display: block;
}

[data-tab-panel][hidden] {
  display: none;
}

@media (max-width: 1024px) {
  body {
    padding-left: 0;
    padding-top: 64px;
  }

  .site-header {
    top: 0;
    bottom: auto;
    left: 0;
    right: 0;
    width: auto;
    height: 64px;
    border-right: 0;
    border-bottom: 3px solid var(--c-orange);
  }

  .site-header-inner {
    flex-direction: row;
    align-items: center;
    gap: 8px;
    padding: 0 14px;
    overflow: visible;
  }

  .brand-lockup {
    flex-direction: row;
    align-items: center;
    gap: 10px;
  }

  .brand-note {
    display: none;
  }

  .brand-sub {
    display: none;
  }

  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 18px;
  }

  .brand-cn {
    font-size: 18px;
  }

  .site-nav {
    position: fixed;
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding: 24px 20px calc(20px + env(safe-area-inset-bottom));
    background: var(--c-deep-blue);
    border-top: 3px solid var(--c-orange);
    border-bottom: 0;
    transform: translateY(110%);
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.3s ease, visibility 0.3s ease;
  }

  .site-nav[data-open] {
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
  }

  .site-nav .nav-list {
    width: 100%;
  }

  .site-nav .nav-rule {
    margin: 12px 0;
  }

  .header-meta {
    margin-left: auto;
    margin-top: 0;
    flex-direction: row;
    align-items: center;
    gap: 8px;
  }

  .daily-badge {
    padding: 6px 8px;
    font-size: 11px;
  }

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

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

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

@media (max-width: 760px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .grid-span-2,
  .grid-span-3,
  .grid-span-4,
  .grid-span-5,
  .grid-span-6,
  .grid-span-7,
  .grid-span-8,
  .grid-span-9,
  .grid-span-10,
  .grid-span-11,
  .grid-span-12 {
    grid-column: auto;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }

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

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

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
}

@media (max-width: 560px) {
  .daily-badge {
    display: none;
  }

  .header-meta .btn-download {
    padding: 8px 10px;
    font-size: 12px;
  }

  .nav-toggle-label {
    display: none;
  }

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

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