*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { min-height: 100vh; background: var(--cream); color: var(--ink); font-family: var(--font-body); line-height: 1.75; letter-spacing: .01em; padding-left: var(--rail-w); }
h1, h2, h3, h4 { line-height: 1.2; font-weight: 900; text-wrap: balance; }
p { margin-bottom: 1em; }
a { color: inherit; }
ul, ol { padding-left: 1.3em; }
img, svg, video { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; }
::selection { background: rgba(180,241,133,.75); color: var(--ink); }

:root {
  --ink: #0A1930;
  --cream: #F7F3E8;
  --orange: #FF5A36;
  --neon: #B4F185;
  --teal: #0E4C5C;
  --milky: #E4EBEF;
  --slate: #5C6B7A;
  --white: #FFFFFF;
  --gold: #E8A33D;
  --font-display: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --rail-w: 280px;
  --transition: 150ms ease;
  --shadow-xs: 2px 2px 0 var(--ink);
  --shadow-sm: 4px 4px 0 var(--ink);
  --shadow-lg: 8px 8px 0 var(--ink);
}

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

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--cream); }
::-webkit-scrollbar-thumb { background: var(--ink); border: 2px solid var(--cream); }
::-webkit-scrollbar-thumb:hover { background: var(--orange); }

.skip-link { position: fixed; top: -120px; left: 16px; z-index: 1500; padding: 10px 16px; background: var(--orange); color: var(--ink); border: 2px solid var(--ink); box-shadow: var(--shadow-sm); font-weight: 900; font-size: 14px; text-decoration: none; transition: top var(--transition); }
.skip-link:focus { top: 12px; }

.site-header { position: fixed; top: 0; left: 0; bottom: 0; width: var(--rail-w); z-index: 100; display: flex; flex-direction: column; background: var(--ink); color: var(--cream); border-top: 4px solid var(--orange); border-right: 2px solid var(--orange); overflow-y: auto; }
.site-header__brand { padding: 26px 22px 24px; border-bottom: 2px solid rgba(247,243,232,.12); }
.site-header__logo { display: block; text-decoration: none; color: var(--cream); }
.site-header__logo-mark { display: inline-block; background: var(--orange); color: var(--ink); font-weight: 900; font-size: 16px; letter-spacing: 1px; padding: 5px 10px; transform: skew(-12deg); box-shadow: var(--shadow-xs); margin-bottom: 14px; }
.site-header__logo-name { display: block; font-size: 26px; font-weight: 900; line-height: 1.25; letter-spacing: 1px; }
.site-header__logo-tag { display: block; margin-top: 10px; font-size: 12px; letter-spacing: 1px; color: rgba(247,243,232,.7); border-left: 3px solid var(--neon); padding-left: 10px; line-height: 1.6; }

.site-header__toggle { display: none; }

.site-header__nav { flex: 1; display: flex; flex-direction: column; }
.site-header__list { list-style: none; margin: 0; padding: 18px 0; }
.site-header__link { position: relative; display: flex; align-items: baseline; gap: 12px; padding: 13px 24px; border-left: 4px solid transparent; color: rgba(247,243,232,.72); text-decoration: none; font-size: 15px; font-weight: 500; letter-spacing: 1px; transition: background var(--transition), color var(--transition), border-color var(--transition), padding-left var(--transition); }
.site-header__index { font-family: var(--font-mono); font-size: 11px; color: var(--neon); opacity: .85; }
.site-header__arrow { margin-left: auto; font-family: var(--font-mono); font-size: 13px; opacity: 0; transform: translateX(-4px); transition: opacity var(--transition), transform var(--transition), color var(--transition); }
.site-header__link:hover { background: rgba(255,90,54,.1); color: var(--white); border-left-color: var(--orange); padding-left: 28px; }
.site-header__link:hover .site-header__arrow { opacity: 1; transform: translateX(0); color: var(--orange); }
.site-header__link[aria-current="page"] { background: rgba(255,90,54,.18); color: var(--white); border-left-color: var(--orange); }
.site-header__link[aria-current="page"] .site-header__label { font-weight: 900; transform: skew(-12deg); }
.site-header__link[aria-current="page"] .site-header__arrow { opacity: 1; transform: translateX(0); color: var(--orange); }

.site-header__meta { margin-top: auto; padding: 18px 24px 24px; border-top: 2px solid rgba(247,243,232,.12); display: grid; gap: 8px; }
.site-header__live { display: flex; align-items: center; gap: 8px; color: var(--neon); font-weight: 700; font-size: 12px; letter-spacing: .5px; }
.site-header__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--neon); animation: pulse-dot 2s ease-out infinite; }
@keyframes pulse-dot { 0% { box-shadow: 0 0 0 0 rgba(180,241,133,.65); } 70% { box-shadow: 0 0 0 8px rgba(180,241,133,0); } 100% { box-shadow: 0 0 0 0 rgba(180,241,133,0); } }
.site-header__telemetry { font-family: var(--font-mono); font-size: 11px; letter-spacing: .5px; color: rgba(247,243,232,.45); }

.site-header__meter { position: fixed; top: 0; right: 0; bottom: 0; width: 10px; background: var(--milky); border-left: 2px solid var(--ink); z-index: 300; pointer-events: none; }
.site-header__meter-fill { position: absolute; top: 0; left: 0; width: 100%; height: 0%; background: var(--orange); border-bottom: 2px solid var(--ink); }
.site-header__meter-num { position: absolute; bottom: 24px; left: 20px; transform: rotate(90deg); transform-origin: left bottom; font-family: var(--font-mono); font-size: 11px; font-weight: 900; color: var(--ink); background: var(--neon); border: 2px solid var(--ink); padding: 2px 5px; white-space: nowrap; }

.main-content { min-height: 70vh; padding: 52px 0 80px; scroll-margin-top: 72px; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 clamp(18px, 4vw, 44px); }

.page-header { position: relative; margin-bottom: 44px; padding-bottom: 26px; border-bottom: 2px solid var(--ink); }
.page-header::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 72px; height: 4px; background: var(--orange); transform: skew(-12deg); }
.page-header__kicker { display: inline-block; margin-bottom: 18px; padding: 4px 12px; background: var(--neon); border: 2px solid var(--ink); box-shadow: var(--shadow-xs); font-family: var(--font-mono); font-size: 13px; font-weight: 700; letter-spacing: 2px; color: var(--ink); transform: skew(-12deg); }
.page-header__title { font-size: clamp(34px, 5vw, 60px); line-height: 1.05; letter-spacing: 1px; margin-bottom: 14px; }
.page-header__desc { max-width: 640px; font-size: 16px; font-weight: 500; color: var(--teal); }
.page-header__meta { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 18px; font-family: var(--font-mono); font-size: 12px; color: var(--slate); }

.section { margin-bottom: 56px; }
.section__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-bottom: 12px; margin-bottom: 22px; border-bottom: 2px solid var(--ink); }
.section__title { display: flex; align-items: center; gap: 12px; font-size: clamp(22px, 3vw, 32px); font-weight: 900; line-height: 1.2; }
.section__title::before { content: ""; display: inline-block; width: 14px; height: 14px; background: var(--orange); border: 2px solid var(--ink); box-shadow: 2px 2px 0 var(--ink); transform: skew(-12deg); flex: 0 0 auto; }
.section__more { font-size: 13px; font-weight: 700; text-decoration: none; color: var(--ink); border-bottom: 2px solid var(--orange); padding-bottom: 2px; white-space: nowrap; transition: color var(--transition), border-color var(--transition); }
.section__more::after { content: " ->"; font-family: var(--font-mono); }
.section__more:hover { color: var(--orange); border-bottom-color: var(--ink); }

.breadcrumbs { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0 0 18px; padding: 0; font-size: 13px; color: var(--slate); }
.breadcrumbs li { display: inline-flex; align-items: center; }
.breadcrumbs li + li::before { content: "→"; margin: 0 8px; color: var(--orange); font-family: var(--font-mono); }
.breadcrumbs a { color: var(--slate); text-decoration: none; transition: color var(--transition); }
.breadcrumbs a:hover { color: var(--orange); }
.breadcrumbs [aria-current="page"] { color: var(--ink); font-weight: 700; }

.grid { display: grid; gap: 22px; }
.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)); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 12px 22px; background: var(--ink); color: var(--cream); border: 2px solid var(--ink); box-shadow: var(--shadow-sm); font-weight: 700; font-size: 14px; letter-spacing: 1px; text-decoration: none; cursor: pointer; transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition); }
.btn:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-lg); }
.btn:active { transform: translate(0, 0); box-shadow: var(--shadow-xs); }
.btn--primary { background: var(--orange); color: var(--ink); border-color: var(--orange); }
.btn--primary:hover { background: var(--ink); color: var(--white); border-color: var(--ink); box-shadow: var(--shadow-lg); }
.btn--ghost { background: transparent; color: var(--ink); box-shadow: none; }
.btn--ghost:hover { background: var(--ink); color: var(--cream); box-shadow: 3px 3px 0 var(--orange); transform: none; }

.tag { display: inline-block; padding: 4px 10px; font-family: var(--font-mono); font-size: 12px; font-weight: 700; letter-spacing: 1px; color: var(--ink); background: transparent; border: 2px solid var(--ink); transform: skew(-12deg); }
.tag--orange { background: var(--orange); }
.tag--neon { background: var(--neon); }
.tag--teal { background: var(--teal); color: var(--cream); }
.tag--gold { background: var(--gold); }

.chip { display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; background: var(--white); border: 2px solid var(--ink); box-shadow: var(--shadow-xs); color: var(--ink); font-weight: 700; font-size: 13px; cursor: pointer; transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition); }
.chip:hover { background: var(--milky); }
.chip[data-open], .chip[aria-pressed="true"] { background: var(--ink); color: var(--cream); box-shadow: none; transform: translate(2px, 2px); }

.card { background: var(--white); border: 2px solid var(--ink); box-shadow: var(--shadow-sm); padding: 22px; transition: transform var(--transition), box-shadow var(--transition); }
.card:hover { transform: translate(-2px, -2px); box-shadow: var(--shadow-lg); }
.card--dark { background: var(--ink); color: var(--cream); }
.card--teal { background: var(--teal); color: var(--cream); }
.card--milky { background: var(--milky); }
.card__title { font-size: 19px; font-weight: 900; margin-bottom: 8px; }
.card__text { font-size: 14px; color: var(--slate); margin-bottom: 0; }
.card--dark .card__text, .card--teal .card__text { color: rgba(247,243,232,.78); }
.card__link { display: inline-block; margin-top: 14px; font-size: 13px; font-weight: 700; color: var(--ink); text-decoration: none; border-bottom: 2px solid var(--orange); padding-bottom: 2px; transition: color var(--transition), border-color var(--transition); }
.card__link::after { content: " ->"; font-family: var(--font-mono); }
.card__link:hover { color: var(--orange); border-bottom-color: var(--ink); }
.card--dark .card__link, .card--teal .card__link { color: var(--cream); }
.card__media { margin: -22px -22px 18px; }
.card__media .image-frame { box-shadow: none; border-top: 0; border-left: 0; border-right: 0; }

.notice { display: flex; align-items: flex-start; gap: 14px; padding: 14px 18px; background: var(--white); border: 2px solid var(--ink); border-left-width: 8px; border-left-color: var(--neon); box-shadow: var(--shadow-sm); font-size: 14px; }
.notice__icon { font-family: var(--font-mono); font-weight: 900; color: var(--teal); line-height: 1.6; }

.data-table { width: 100%; border-collapse: collapse; background: var(--white); border: 2px solid var(--ink); box-shadow: var(--shadow-sm); font-size: 14px; }
.data-table caption { caption-side: top; text-align: left; padding: 10px 14px; background: var(--ink); color: var(--cream); border-bottom: 2px solid var(--orange); font-weight: 900; font-size: 15px; }
.data-table th, .data-table td { padding: 11px 14px; border-bottom: 1px solid var(--milky); text-align: left; font-family: var(--font-mono); }
.data-table th { background: var(--ink); color: var(--cream); letter-spacing: 1px; font-size: 13px; font-weight: 700; }
.data-table tbody tr { transition: background var(--transition); }
.data-table tbody tr:hover { background: rgba(180,241,133,.4); }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table__hl { color: var(--orange); font-weight: 900; }

.accordion { border: 2px solid var(--ink); background: var(--white); box-shadow: var(--shadow-sm); }
.accordion__item + .accordion__item { border-top: 2px solid var(--ink); }
.accordion__button { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 15px 18px; background: transparent; border: 0; cursor: pointer; text-align: left; font-weight: 900; font-size: 15px; color: var(--ink); transition: background var(--transition); }
.accordion__button:hover { background: var(--milky); }
.accordion__icon { flex: 0 0 auto; width: 26px; height: 26px; display: inline-flex; align-items: center; justify-content: center; border: 2px solid var(--ink); font-family: var(--font-mono); font-weight: 900; font-size: 15px; color: var(--orange); transition: transform var(--transition), background var(--transition), color var(--transition); }
.accordion__item[data-open] .accordion__icon { transform: rotate(45deg); background: var(--ink); color: var(--neon); }
.accordion__panel { max-height: 0; overflow: hidden; visibility: hidden; transition: max-height 220ms ease, visibility 220ms; }
.accordion__item[data-open] .accordion__panel { max-height: 320px; visibility: visible; }
.accordion__panel-inner { padding: 0 18px 16px 18px; font-size: 14px; color: var(--slate); }

.image-frame { position: relative; display: block; aspect-ratio: 4 / 3; background: var(--milky); border: 2px solid var(--ink); box-shadow: var(--shadow-sm); overflow: hidden; text-decoration: none; transition: box-shadow var(--transition), transform var(--transition); }
.image-frame::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(-45deg, rgba(10,25,48,.08) 0 10px, transparent 10px 20px); pointer-events: none; z-index: 1; }
.image-frame::after { content: ""; position: absolute; right: 8px; bottom: 8px; width: 18px; height: 18px; border-right: 3px solid var(--orange); border-bottom: 3px solid var(--orange); opacity: .7; }
.image-frame img { width: 100%; height: 100%; object-fit: cover; }
.image-frame:hover { box-shadow: var(--shadow-lg); transform: translate(-2px, -2px); }
.image-frame--wide { aspect-ratio: 16 / 9; }
.image-frame--tall { aspect-ratio: 3 / 4; }
.image-frame--square { aspect-ratio: 1 / 1; }
.image-frame__caption { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; padding: 8px 14px; background: var(--ink); color: var(--cream); font-size: 12px; font-family: var(--font-mono); letter-spacing: .5px; border-top: 2px solid var(--neon); }
.image-frame__label { position: absolute; top: 10px; left: -4px; z-index: 2; padding: 4px 12px; background: var(--orange); border: 2px solid var(--ink); box-shadow: var(--shadow-xs); font-weight: 900; font-size: 12px; transform: skew(-12deg); }

hr { border: 0; border-top: 2px solid var(--ink); margin: 32px 0; }

.site-footer { position: relative; margin-top: 80px; background: var(--ink); color: rgba(247,243,232,.85); }
.site-footer::before { content: ""; display: block; height: 6px; background: repeating-linear-gradient(-45deg, var(--orange) 0 10px, var(--ink) 10px 20px, var(--neon) 20px 30px, var(--ink) 30px 40px); border-bottom: 2px solid var(--orange); }
.site-footer__inner { max-width: 1180px; margin: 0 auto; padding: 56px clamp(20px, 4vw, 44px) 28px; }
.site-footer__main { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 36px; padding-bottom: 40px; border-bottom: 2px solid rgba(247,243,232,.18); }
.site-footer__logo { display: inline-block; padding: 4px 10px; background: var(--orange); color: var(--ink); border: 2px solid var(--ink); box-shadow: 3px 3px 0 rgba(247,243,232,.25); font-weight: 900; font-size: 20px; letter-spacing: 1px; text-decoration: none; transform: skew(-12deg); margin-bottom: 14px; }
.site-footer__about { max-width: 320px; font-size: 13px; color: rgba(247,243,232,.7); }
.site-footer__heading { margin-bottom: 14px; padding-bottom: 6px; border-bottom: 2px solid rgba(247,243,232,.2); font-family: var(--font-display); font-size: 13px; font-weight: 900; letter-spacing: 2px; color: var(--gold); }
.site-footer__links { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: 14px; }
.site-footer__links a { color: rgba(247,243,232,.8); text-decoration: none; border-bottom: 1px solid transparent; transition: color var(--transition), border-color var(--transition), padding-left var(--transition); }
.site-footer__links a:hover { color: var(--neon); border-bottom-color: var(--neon); padding-left: 4px; }
.site-footer__contact { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: 13px; line-height: 1.6; color: rgba(247,243,232,.7); word-break: break-all; }
.site-footer__statement { display: flex; align-items: flex-start; gap: 12px; margin: 28px 0 0; padding: 14px 16px; background: rgba(255,255,255,.04); border-left: 4px solid var(--gold); font-size: 12px; line-height: 1.7; color: rgba(247,243,232,.6); }
.site-footer__statement a { color: var(--neon); text-decoration: underline; text-underline-offset: 3px; }
.site-footer__statement a:hover { color: var(--orange); }
.site-footer__bottom { display: flex; flex-wrap: wrap; gap: 10px 24px; justify-content: space-between; align-items: center; padding-top: 20px; font-family: var(--font-mono); font-size: 12px; color: rgba(247,243,232,.55); }
.site-footer__icp { display: inline-block; padding: 3px 10px; border: 1px solid rgba(247,243,232,.3); color: var(--neon); letter-spacing: 1px; }

.back-top { position: fixed; right: 28px; bottom: 28px; z-index: 200; display: inline-flex; align-items: center; gap: 8px; padding: 10px 14px; background: var(--orange); color: var(--ink); border: 2px solid var(--ink); box-shadow: var(--shadow-sm); font-weight: 900; font-size: 13px; cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(10px); transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background var(--transition); }
.back-top[data-visible] { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--neon); }
.back-top__label { font-family: var(--font-display); }

@media (max-width: 879px) {
  html { scroll-padding-top: 72px; }
  body { padding-left: 0; padding-top: 64px; }
  .site-header { position: fixed; top: 0; left: 0; right: 0; bottom: auto; width: auto; min-height: 64px; z-index: auto; flex-direction: row; align-items: center; justify-content: space-between; padding: 8px 14px 8px 16px; border-top: 4px solid var(--orange); border-right: 0; border-bottom: 2px solid var(--orange); overflow: visible; }
  .site-header__brand { padding: 0; border-bottom: 0; }
  .site-header__logo { display: flex; align-items: center; gap: 10px; }
  .site-header__logo-mark { margin-bottom: 0; padding: 4px 8px; font-size: 13px; }
  .site-header__logo-name { font-size: 19px; line-height: 1.2; }
  .site-header__logo-tag { display: none; }
  .site-header__toggle { display: inline-flex; align-items: center; gap: 10px; position: relative; z-index: 130; padding: 8px 12px; background: var(--orange); color: var(--ink); border: 2px solid var(--ink); cursor: pointer; font-weight: 900; font-size: 12px; letter-spacing: 1px; transition: background var(--transition), color var(--transition); }
  .site-header__toggle:hover { background: var(--neon); }
  .site-header__toggle-label { font-family: var(--font-display); }
  .site-header__toggle-box { display: inline-flex; flex-direction: column; gap: 4px; width: 20px; }
  .site-header__toggle-bar { display: block; height: 3px; width: 100%; background: currentColor; transition: transform var(--transition), opacity var(--transition); }
  .site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(2) { opacity: 0; }
  .site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .site-header__nav { position: fixed; top: 0; right: 0; bottom: 0; left: auto; width: min(320px, 86vw); z-index: 120; margin: 0; padding: 76px 0 24px; background: var(--ink); border-left: 2px solid var(--orange); box-shadow: -8px 0 0 rgba(10,25,48,.18); overflow-y: auto; transform: translateX(102%); visibility: hidden; transition: transform 240ms ease, visibility 240ms; }
  .site-header__nav[data-open] { transform: translateX(0); visibility: visible; }
  .site-header__link { padding: 15px 26px; font-size: 16px; }
  .site-header__meta { padding-bottom: 12px; }
  .site-header__meter { width: 6px; }
  .site-header__meter-num { display: none; }
  body[data-nav-open] { overflow: hidden; }
  body[data-nav-open]::after { content: ""; position: fixed; inset: 0; background: rgba(10,25,48,.55); z-index: 110; }
  .main-content { padding-top: 36px; }
  .site-footer__main { grid-template-columns: 1fr 1fr; gap: 28px; }
  .site-footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 559px) {
  .site-footer__main { grid-template-columns: 1fr; }
}

@media (max-width: 879px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

@media (min-width: 880px) and (max-width: 1099px) {
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

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