:root{
  --navy:#0B1F3A;
  --navy-deep:#142C52;
  --orange:#FF7A1A;
  --orange-light:#FFD8B0;
  --silver:#C7CED8;
  --silver-soft:#E8EDF3;
  --mist:#F6F8FB;
  --cyan:#7FD4FF;
  --graphite:#2E3A48;
  --jade:#1FA97A;
  --white:#FFFFFF;
  --shell:1220px;
  --shell-pad:clamp(1.15rem,4vw,3.25rem);
  --gap:clamp(1rem,2.4vw,2rem);
  --r-lg:34px;
  --r-md:20px;
  --r-sm:12px;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,"Times New Roman",serif;
  --sans:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Consolas,"Roboto Mono",monospace;
  --line:1px solid rgba(11,31,58,.1);
  --shadow:0 30px 60px -46px rgba(11,31,58,.75);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--mist);color:var(--graphite);font-family:var(--sans);font-size:1rem;line-height:1.8;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px;border-radius:6px}
::selection{background:var(--orange);color:#fff}
#main-content:focus{outline:none}
h1,.h1{font-family:var(--sans);font-weight:900;letter-spacing:-.02em;line-height:1.1;color:var(--navy);font-size:clamp(2.1rem,5.4vw,3.8rem)}
h2,.h2{font-family:var(--serif);font-weight:700;line-height:1.28;color:var(--navy);font-size:clamp(1.55rem,2.9vw,2.4rem)}
h3,.h3{font-family:var(--serif);font-weight:600;line-height:1.35;color:var(--navy);font-size:clamp(1.12rem,1.8vw,1.4rem)}
.num{font-family:var(--mono);font-weight:700;font-variant-numeric:tabular-nums}
.visually-hidden{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0}
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--shell-pad)}
.shell--narrow{max-width:860px}
.page-body{padding-block:clamp(2.2rem,5vw,4.5rem)}
.section{padding-block:clamp(2.4rem,5.5vw,4.8rem)}
.section--tight{padding-block:clamp(1.6rem,3vw,2.6rem)}
.section__head{max-width:62ch;margin-bottom:clamp(1.4rem,3vw,2.4rem)}
.section__title{margin-top:.7rem}
.section__lede{margin-top:.9rem;font-size:1.05rem;color:#54657A}
.eyebrow{display:inline-flex;align-items:center;gap:.55rem;font-size:.76rem;font-weight:700;letter-spacing:.22em;color:var(--orange)}
.eyebrow::before{content:"";width:28px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),var(--orange))}
.prose{max-width:72ch;font-size:1.0625rem;line-height:1.85}
.prose>*+*{margin-top:1.15em}
.prose h2{margin-top:2.2em}
.prose h3{margin-top:1.7em}
.prose strong{color:var(--navy);font-weight:700}
.prose ul li{position:relative;padding-left:1.45rem}
.prose ul li+li{margin-top:.5em}
.prose ul li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:3px;background:linear-gradient(135deg,var(--orange),var(--orange-light))}
.prose a{color:var(--navy);border-bottom:2px solid rgba(255,122,26,.5)}
.prose a:hover{color:var(--orange)}
.grid{display:grid;gap:var(--gap)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.grid--asym{grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.72rem 1.4rem;border-radius:999px;font-size:.92rem;font-weight:700;letter-spacing:.02em;border:1px solid transparent;transition:transform .28s ease,box-shadow .28s ease,background .28s ease,color .28s ease}
.btn--accent{background:linear-gradient(120deg,var(--orange),#FF9A4D);color:#fff;box-shadow:0 16px 32px -20px rgba(255,122,26,.95)}
.btn--accent:hover{transform:translateY(-2px);box-shadow:0 20px 36px -18px rgba(255,122,26,.85)}
.btn--ghost{border-color:var(--silver);background:rgba(255,255,255,.9);color:var(--navy)}
.btn--ghost:hover{border-color:var(--navy);transform:translateY(-2px)}
.btn--block{width:100%}
.card{position:relative;background:#fff;border:var(--line);border-radius:var(--r-md);padding:clamp(1.2rem,2.2vw,1.9rem);box-shadow:var(--shadow);transition:transform .35s ease,box-shadow .35s ease}
.card:hover{transform:translateY(-4px);box-shadow:0 36px 64px -44px rgba(11,31,58,.9)}
.card__title{font-family:var(--serif);font-size:1.15rem;font-weight:600;color:var(--navy);line-height:1.4}
.card__text{margin-top:.6rem;font-size:.96rem;color:#54657A}
.card__meta{margin-top:1rem;font-family:var(--mono);font-size:.76rem;letter-spacing:.12em;color:#8593A5}
.panel{position:relative;overflow:hidden;border-radius:var(--r-lg);padding:clamp(1.5rem,3vw,2.6rem);border:1px solid rgba(11,31,58,.08);background:linear-gradient(140deg,rgba(127,212,255,.3),rgba(255,216,176,.38) 62%,rgba(255,255,255,.92))}
.panel--dark{background:linear-gradient(150deg,var(--navy) 0%,var(--navy-deep) 100%);border-color:transparent;color:#D8E2EE}
.panel--dark .panel__title{color:#fff}
.panel__title{font-family:var(--serif);font-size:1.3rem;font-weight:600;color:var(--navy);line-height:1.4}
.tag{display:inline-flex;align-items:center;gap:.35rem;padding:.26rem .72rem;border-radius:999px;background:var(--silver-soft);color:#4A5A6C;font-size:.78rem;font-weight:600}
.tag--accent{background:rgba(255,122,26,.14);color:#B9500A}
.tag--tint{background:rgba(127,212,255,.22);color:#14557C}
.tag-list{display:flex;flex-wrap:wrap;gap:.5rem}
.status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--jade);box-shadow:0 0 0 4px rgba(31,169,122,.18)}
.status-dot--accent{background:var(--orange);box-shadow:0 0 0 4px rgba(255,122,26,.18)}
.status-panel{background:#fff;border:var(--line);border-radius:var(--r-md);padding:clamp(1.1rem,2vw,1.6rem);box-shadow:var(--shadow)}
.status-panel__row{display:flex;align-items:baseline;justify-content:space-between;gap:1rem;padding:.7rem 0;border-bottom:1px dashed rgba(199,206,216,.7);font-size:.92rem}
.status-panel__row:last-child{border-bottom:0}
.status-panel__label{color:#54657A}
.status-panel__value{font-family:var(--mono);font-weight:700;color:var(--navy)}
.index-list{display:grid;gap:.1rem}
.index-link{display:flex;align-items:baseline;gap:1rem;padding:.9rem .2rem;border-bottom:1px solid rgba(11,31,58,.1);color:var(--navy);font-weight:600;transition:padding-left .3s ease,color .3s ease}
.index-link:hover{padding-left:.9rem;color:var(--orange)}
.index-link__num{font-family:var(--mono);font-size:.78rem;letter-spacing:.1em;color:#8593A5}
.index-link__note{margin-left:auto;font-size:.82rem;font-weight:500;color:#8593A5;text-align:right}
.stat{padding:.9rem 0}
.stat__value{font-family:var(--mono);font-weight:700;font-size:clamp(1.6rem,3.4vw,2.4rem);line-height:1;color:var(--navy)}
.stat__value em{font-style:normal;color:var(--orange)}
.stat__label{margin-top:.45rem;font-size:.82rem;letter-spacing:.06em;color:#8593A5}
.timeline{position:relative;padding-left:1.7rem}
.timeline::before{content:"";position:absolute;left:5px;top:.5rem;bottom:.5rem;width:2px;border-radius:2px;background:linear-gradient(180deg,var(--cyan),var(--orange))}
.timeline__item{position:relative;padding-block:.9rem}
.timeline__item::before{content:"";position:absolute;left:-1.7rem;top:1.35rem;width:12px;height:12px;border-radius:50%;background:#fff;border:2px solid var(--orange)}
.filter-bar{display:flex;flex-wrap:wrap;gap:.4rem;max-width:100%;width:fit-content;padding:.45rem;background:#fff;border:var(--line);border-radius:999px;box-shadow:var(--shadow)}
.filter-btn{padding:.5rem 1rem;border-radius:999px;font-size:.85rem;font-weight:600;color:#54657A;transition:background .25s ease,color .25s ease}
.filter-btn:hover{background:var(--silver-soft);color:var(--navy)}
.filter-btn[aria-pressed="true"]{background:var(--navy);color:#fff}
.breadcrumbs{padding-block:1rem;background:rgba(255,255,255,.6);border-bottom:1px solid rgba(11,31,58,.08)}
.breadcrumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:.55rem;font-size:.82rem;color:#8593A5}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:.55rem}
.breadcrumbs__item+.breadcrumbs__item::before{content:"/";color:var(--silver)}
.breadcrumbs__link{color:#54657A}
.breadcrumbs__link:hover{color:var(--orange)}
.breadcrumbs__item[aria-current="page"]{color:var(--navy);font-weight:600}
.media-frame{position:relative;display:block;overflow:hidden;border-radius:var(--r-md);aspect-ratio:16/10;background:linear-gradient(135deg,var(--silver-soft),var(--mist) 55%,#FFE7D2)}
.media-frame--wide{aspect-ratio:16/7}
.media-frame--tall{aspect-ratio:4/5}
.media-frame--square{aspect-ratio:1/1}
.media-frame--placeholder{background-image:linear-gradient(135deg,rgba(127,212,255,.38),rgba(255,216,176,.6)),repeating-linear-gradient(135deg,rgba(11,31,58,.07) 0 2px,transparent 2px 14px)}
.media-frame>img,.media-frame>picture>img{width:100%;height:100%;object-fit:cover}
.media-frame::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(200deg,rgba(127,212,255,.22),transparent 45%,rgba(11,31,58,.18))}
.media-frame__caption{position:absolute;left:1rem;bottom:1rem;z-index:2;padding:.3rem .75rem;border-radius:999px;background:rgba(11,31,58,.62);color:#fff;font-size:.78rem;backdrop-filter:blur(6px)}
.scroll-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:70;background:rgba(11,31,58,.1);pointer-events:none}
.scroll-progress__bar{display:block;height:100%;width:100%;transform:scaleX(0);transform-origin:0 50%;background:linear-gradient(90deg,var(--cyan),var(--orange));transition:transform .12s linear}
.skip-link{position:absolute;left:50%;top:-120px;transform:translateX(-50%);z-index:80;padding:.65rem 1.3rem;border-radius:0 0 16px 16px;background:var(--orange);color:#fff;font-weight:700;font-size:.88rem;transition:top .25s ease}
.skip-link:focus{top:0}
.site-header{position:relative;z-index:40;background:#fff;border-bottom:1px solid rgba(11,31,58,.12)}
.header-utility{background:linear-gradient(90deg,var(--navy) 0%,var(--navy-deep) 58%,#1B3E6E 100%);color:#D8E2EE;font-size:.8rem}
.header-utility__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.6rem;min-height:44px;padding-block:.3rem}
.header-utility__note{margin:0;letter-spacing:.04em;color:#A9BACE}
.header-utility__actions{display:flex;align-items:center;gap:.55rem}
.header-utility__sep{color:rgba(199,206,216,.4)}
.header-utility__value{padding:.25rem .65rem;border-radius:999px;background:rgba(255,122,26,.18);border:1px solid rgba(255,122,26,.35);font-family:var(--mono);color:#F4F8FC}
.copy-chip{display:inline-flex;align-items:center;gap:.5rem;padding:.25rem .65rem;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(199,206,216,.25);color:#EAF1F8;font-family:var(--mono);font-size:.78rem;transition:background .25s ease,border-color .25s ease}
.copy-chip:hover{background:rgba(127,212,255,.18);border-color:rgba(127,212,255,.5)}
.copy-chip__text{letter-spacing:.02em}
.copy-chip__hint{font-family:var(--sans);font-weight:700;color:var(--cyan)}
.masthead{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,var(--mist) 100%)}
.masthead::before{content:"";position:absolute;inset:-60% -12% auto -12%;height:240%;pointer-events:none;background:radial-gradient(38% 52% at 16% 80%,rgba(127,212,255,.45),transparent 70%),radial-gradient(30% 46% at 84% 12%,rgba(255,122,26,.26),transparent 68%)}
.masthead__inner{position:relative;display:flex;align-items:center;justify-content:center;padding-block:clamp(1.1rem,2.6vw,1.9rem)}
.masthead__brand{display:flex;flex-direction:column;align-items:center;gap:.15rem;text-align:center}
.masthead__mark{font-family:var(--sans);font-weight:900;letter-spacing:-.03em;line-height:1.05;font-size:clamp(1.9rem,4.4vw,2.9rem);color:var(--navy)}
.masthead__mark::after{content:"";display:inline-block;width:.32em;height:.32em;margin-left:.2em;border-radius:50%;background:var(--orange);vertical-align:baseline}
.masthead__sub{font-size:.76rem;font-weight:600;letter-spacing:.44em;text-indent:.44em;color:#6B7A8D}
.nav-toggle{display:none;position:absolute;right:var(--shell-pad);top:50%;transform:translateY(-50%);align-items:center;gap:.5rem;padding:.5rem .85rem;border-radius:999px;border:1px solid rgba(11,31,58,.16);background:rgba(255,255,255,.88);color:var(--navy);font-size:.82rem;font-weight:700}
.nav-toggle__bars{position:relative;display:inline-block;width:16px;height:10px}
.nav-toggle__bars::before,.nav-toggle__bars::after{content:"";position:absolute;left:0;width:100%;height:2px;border-radius:2px;background:var(--navy);transition:transform .28s ease,top .28s ease}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{top:8px}
.site-header[data-open] .nav-toggle{background:var(--orange);border-color:transparent;color:#fff}
.site-header[data-open] .nav-toggle__bars::before,.site-header[data-open] .nav-toggle__bars::after{background:#fff}
.site-header[data-open] .nav-toggle__bars::before{top:4px;transform:rotate(45deg)}
.site-header[data-open] .nav-toggle__bars::after{top:4px;transform:rotate(-45deg)}
.primary-nav{position:relative;background:rgba(255,255,255,.95);border-top:1px solid rgba(11,31,58,.08);border-bottom:1px solid rgba(11,31,58,.1)}
.primary-nav__inner{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:1rem;padding-block:.35rem}
.primary-nav__label{justify-self:start;display:inline-flex;align-items:center;gap:.45rem;font-size:.72rem;font-weight:700;letter-spacing:.2em;color:#8593A5}
.primary-nav__label::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--jade)}
.nav-list{display:flex;align-items:center;justify-content:center;gap:.15rem}
.nav-link{position:relative;display:inline-block;padding:.7rem .85rem;border-radius:999px;font-size:.94rem;font-weight:600;color:#41505F;transition:color .25s ease,background .25s ease}
.nav-link::after{content:"";position:absolute;left:50%;bottom:.24rem;width:0;height:3px;border-radius:3px;transform:translateX(-50%);background:linear-gradient(90deg,var(--cyan),var(--orange));transition:width .3s ease}
.nav-link:hover{color:var(--navy);background:var(--silver-soft)}
.nav-link:hover::after,.nav-link:focus-visible::after{width:42%}
.nav-link[aria-current="page"]{color:var(--navy);background:linear-gradient(120deg,rgba(255,216,176,.92),rgba(127,212,255,.42))}
.nav-link[aria-current="page"]::after{width:0}
.nav-cta{justify-self:end}
.site-footer{position:relative;overflow:hidden;margin-top:clamp(2.5rem,6vw,5rem);background:linear-gradient(160deg,var(--navy) 0%,var(--navy-deep) 52%,var(--navy) 100%);color:var(--silver)}
.site-footer__glow{position:absolute;inset:-35% -10% auto -10%;height:85%;pointer-events:none;background:radial-gradient(42% 60% at 14% 30%,rgba(127,212,255,.3),transparent 70%),radial-gradient(34% 52% at 86% 8%,rgba(255,122,26,.24),transparent 72%)}
.site-footer__inner{position:relative;display:grid;grid-template-columns:minmax(0,1.35fr) repeat(3,minmax(0,1fr));gap:clamp(1.8rem,4vw,3.2rem);padding-block:clamp(2.6rem,6vw,4.2rem)}
.footer-brand__mark{font-family:var(--sans);font-weight:900;font-size:1.7rem;line-height:1.1;letter-spacing:-.02em;color:#fff}
.footer-brand__mark span{color:var(--orange)}
.footer-brand__sub{margin-top:.35rem;font-size:.76rem;font-weight:600;letter-spacing:.34em;text-indent:.34em;color:#8FA3BB}
.footer-brand__lede{margin-top:1rem;max-width:32ch;font-size:.92rem;line-height:1.75;color:#A9BACE}
.footer-status{margin-top:1.4rem;display:grid;gap:.55rem}
.footer-status__item{display:flex;align-items:center;gap:.65rem;font-size:.88rem;color:#D8E2EE}
.footer-col__title{margin-bottom:.9rem;font-size:.75rem;font-weight:700;letter-spacing:.24em;color:#7E90A8}
.footer-col__list{display:grid;gap:.55rem}
.footer-col__link{display:inline-block;font-size:.92rem;color:var(--silver);transition:color .25s ease,transform .25s ease}
.footer-col__link:hover{color:var(--cyan)}
.footer-col__link[aria-current="page"]{color:var(--orange);font-weight:700}
.contact-line{display:grid;gap:.12rem;font-size:.9rem;color:#D8E2EE}
.contact-line__label{font-size:.72rem;letter-spacing:.2em;color:#7E90A8}
.contact-line__value{font-family:var(--mono);word-break:break-all;color:#E6EEF7}
.footer-bottom{grid-column:1/-1;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.8rem;margin-top:clamp(1rem,3vw,2rem);padding-top:1.4rem;border-top:1px solid rgba(199,206,216,.2);font-size:.8rem;color:#8FA3BB}
.footer-bottom__note{margin:0}
.footer-bottom__icp{font-family:var(--mono);color:#A9BACE}
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .6s cubic-bezier(.2,.7,.3,1)}
[data-reveal].is-visible{opacity:1;transform:none}
@media (max-width:1080px){
  .primary-nav__label{visibility:hidden}
}
@media (max-width:980px){
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .site-footer__inner{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .primary-nav{max-height:0;overflow:hidden;visibility:hidden;background:var(--navy);border-top:0;border-bottom:0;transition:max-height .38s cubic-bezier(.2,.7,.3,1),visibility .38s ease}
  .site-header[data-open] .primary-nav{max-height:min(78vh,560px);overflow-y:auto;visibility:visible;border-bottom:1px solid rgba(127,212,255,.25)}
  .primary-nav__inner{grid-template-columns:minmax(0,1fr);gap:0;padding-block:1rem 1.5rem}
  .primary-nav__label{display:none}
  .nav-list{flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0}
  .nav-link{display:block;padding:.95rem .2rem;border-radius:0;font-size:1.02rem;color:#DCE6F2;border-bottom:1px solid rgba(199,206,216,.16)}
  .nav-link::after{display:none}
  .nav-link:hover{background:transparent;color:#fff}
  .nav-link[aria-current="page"]{background:transparent;color:var(--orange);border-bottom-color:rgba(255,122,26,.5)}
  .nav-link[aria-current="page"]::before{content:"";display:inline-block;width:6px;height:6px;margin-right:.55rem;border-radius:50%;background:var(--orange);vertical-align:middle}
  .nav-cta{justify-self:stretch;width:100%;margin-top:1.15rem}
}
@media (max-width:760px){
  .grid--2,.grid--3,.grid--split,.grid--asym{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:700px){
  .header-utility{font-size:.75rem}
  .header-utility__note{display:none}
  .copy-chip{padding:.22rem .5rem}
  .copy-chip__hint{display:none}
  .header-utility__value{padding:.22rem .55rem}
}
@media (max-width:620px){
  .site-footer__inner{grid-template-columns:minmax(0,1fr)}
  .index-link{flex-wrap:wrap;gap:.4rem}
  .index-link__note{margin-left:0;width:100%;text-align:left}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  [data-reveal]{opacity:1!important;transform:none!important}
  .scroll-progress__bar{transition:none}
}
@media (scripting:none){
  [data-reveal]{opacity:1;transform:none}
}