/* ===========================================================
   万利简体中文官网 · 共享样式表  /assets/site.css
   基调：深墨蓝仪表盘 × 版本档案馆
   琥珀橙 = 使用记录轨 | 青瓷绿 = 更新记录轨 | 电子紫 = 版本差异
   =========================================================== */

/* ---------- 01 reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,dl,dt,dd,figure,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video,canvas{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}
hr{border:0}

/* ---------- 02 tokens ---------- */
:root{
  --ink-navy-900:#08121F;
  --ink-navy-700:#10233A;
  --ink-navy-500:#1B3A5C;
  --haze-border:#2A4560;
  --paper:#F2F6FB;
  --text-muted:#93A6BA;
  --amber:#FFA23A;
  --amber-deep:#D97B12;
  --celadon:#2FD0AF;
  --celadon-deep:#168A73;
  --violet:#8E7BFF;
  --ink-black:#05090F;

  --status-h:40px;
  --rail-w:96px;
  --topbar-h:58px;

  --font-display:"Oswald","Barlow Condensed","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-editorial:"Songti SC","Source Han Serif SC","Noto Serif SC","SimSun",serif;
  --font-mono:"JetBrains Mono","SFMono-Regular","Cascadia Mono",Consolas,"Liberation Mono",monospace;

  --ease:cubic-bezier(.4,0,.2,1);
  --t-fast:150ms;
  --t-mid:220ms;
}

/* ---------- 03 base ---------- */
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--paper);
  background-color:var(--ink-navy-900);
  background-image:
    radial-gradient(1100px 620px at 92% -14%, rgba(27,58,92,.60), transparent 60%),
    radial-gradient(760px 480px at -6% 18%, rgba(47,208,175,.07), transparent 58%);
  padding-top:var(--status-h);
  padding-left:var(--rail-w);
  min-height:100vh;
}

h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.16;letter-spacing:-.012em;color:var(--paper)}
h1{font-size:44px}
h2{font-size:36px}
h3{font-size:28px}
h4{font-size:20px}
h5,h6{font-family:var(--font-display);font-weight:600;font-size:16px}

.type-editorial{font-family:var(--font-editorial);font-weight:600;line-height:1.45;letter-spacing:.01em}
.num,.type-mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}

a{transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),background-color var(--t-fast) var(--ease)}

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

::selection{background:var(--amber);color:var(--ink-navy-900)}

/* ---------- 04 skip link ---------- */
.skip-link{
  position:fixed;top:0;left:0;z-index:300;
  transform:translateY(-130%);
  padding:10px 20px;
  background:var(--amber);color:var(--ink-navy-900);
  font-family:var(--font-display);font-weight:700;font-size:15px;letter-spacing:.04em;
  transition:transform var(--t-mid) var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 05 header / status rail ---------- */
.site-header{position:relative;z-index:80}

.status-rail{
  position:fixed;top:0;left:0;right:0;
  height:var(--status-h);
  display:flex;align-items:center;gap:16px;
  padding:0 22px;
  background:rgba(16,35,58,.78);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--haze-border);
  font-family:var(--font-mono);font-size:12px;color:var(--text-muted);
  z-index:70;
}
.status-rail__pulse{
  flex:0 0 auto;width:8px;height:8px;
  background:var(--amber);
  animation:rail-pulse 2.8s var(--ease) infinite;
}
@keyframes rail-pulse{
  0%{box-shadow:0 0 0 0 rgba(255,162,58,.55)}
  70%{box-shadow:0 0 0 9px rgba(255,162,58,0)}
  100%{box-shadow:0 0 0 0 rgba(255,162,58,0)}
}
.status-rail__list{display:flex;align-items:center;flex:1 1 auto;min-width:0;overflow:hidden}
.status-rail__item{display:inline-flex;align-items:center;gap:8px;padding:0 20px;white-space:nowrap}
.status-rail__item:first-child{padding-left:0}
.status-rail__item:not(:first-child){border-left:1px solid var(--haze-border)}
.status-rail__key{color:var(--celadon)}
.status-rail__progress{
  position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:linear-gradient(90deg,var(--amber),var(--celadon));
  transition:width 120ms linear;
}

/* ---------- 06 mobile brand bar ---------- */
.brandbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:var(--topbar-h);
  align-items:center;gap:12px;padding:0 14px;
  background:rgba(8,18,31,.94);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--haze-border);
  z-index:90;
}
.brandbar__brand{display:flex;align-items:center;gap:10px}
.brandbar__mark{
  display:grid;place-items:center;width:32px;height:32px;
  background:var(--amber);color:var(--ink-navy-900);
  font-family:var(--font-display);font-weight:800;font-size:18px;line-height:1;
}
.brandbar__text{display:flex;flex-direction:column;line-height:1.2}
.brandbar__name{font-family:var(--font-display);font-weight:700;font-size:17px;letter-spacing:.04em}
.brandbar__sub{font-size:11px;color:var(--text-muted);letter-spacing:.14em}
.brandbar__tagline{
  margin-left:auto;font-family:var(--font-mono);font-size:11px;
  color:var(--celadon);letter-spacing:.06em;white-space:nowrap;
}
.nav-toggle{
  display:flex;align-items:center;gap:8px;
  padding:7px 11px;
  border:1px solid var(--haze-border);
  color:var(--text-muted);
  font-family:var(--font-display);font-size:13px;font-weight:600;letter-spacing:.08em;
  transition:border-color var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.nav-toggle:hover,.nav-toggle[aria-expanded="true"]{border-color:var(--amber);color:var(--amber)}
.nav-toggle__bars{position:relative;display:block;width:16px;height:12px}
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  content:"";position:absolute;left:0;right:0;height:1.5px;background:currentColor;
  transition:transform var(--t-mid) var(--ease),top var(--t-mid) var(--ease);
}
.nav-toggle__bars::before{top:1px}
.nav-toggle__bars::after{top:9px}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:6px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{top:6px;transform:rotate(-45deg)}

/* ---------- 07 rail navigation (desktop) ---------- */
.rail{
  position:fixed;top:var(--status-h);left:0;bottom:0;width:var(--rail-w);
  display:flex;flex-direction:column;align-items:center;
  gap:12px;padding:18px 0 20px;
  background:linear-gradient(180deg,#0A1524 0%,#08121F 100%);
  border-right:1px solid var(--haze-border);
  overflow-y:auto;
  scrollbar-width:thin;
  scrollbar-color:var(--haze-border) transparent;
  z-index:60;
}
.rail__brand{
  display:flex;flex-direction:column;align-items:center;gap:10px;
  width:100%;padding:0 0 16px;
  border-bottom:1px solid var(--haze-border);
}
.rail__mark{
  display:grid;place-items:center;width:36px;height:36px;
  background:var(--amber);color:var(--ink-navy-900);
  font-family:var(--font-display);font-weight:800;font-size:19px;line-height:1;
  transition:background-color var(--t-mid) var(--ease);
}
.rail__brand:hover .rail__mark{background:var(--celadon)}
.rail__wordmark{
  writing-mode:vertical-rl;text-orientation:upright;
  font-size:11px;letter-spacing:.28em;color:var(--text-muted);
}
.rail__list{display:flex;flex-direction:column;align-items:center;width:100%;gap:4px}
.rail__item{display:flex;justify-content:center;width:100%}
.rail__link{
  display:flex;flex-direction:column;align-items:center;gap:9px;
  width:74px;padding:10px 5px;
  border:1px solid transparent;border-left-width:2px;
  color:var(--text-muted);
  transition:border-color var(--t-mid) var(--ease),color var(--t-mid) var(--ease),background-color var(--t-mid) var(--ease);
}
.rail__link:hover{border-color:rgba(255,162,58,.45);color:var(--paper)}
.rail__link[aria-current="page"]{
  border-left-color:var(--amber);
  background:rgba(255,162,58,.09);
  color:var(--paper);
}
.rail__idx{
  font-family:var(--font-mono);font-size:11px;line-height:1;
  padding:3px 5px;border:1px solid var(--haze-border);
  transition:border-color var(--t-mid) var(--ease),color var(--t-mid) var(--ease);
}
.rail__link:hover .rail__idx{border-color:var(--amber);color:var(--amber)}
.rail__link[aria-current="page"] .rail__idx{border-color:var(--amber);color:var(--amber)}
.rail__label{
  writing-mode:vertical-rl;text-orientation:upright;
  font-family:var(--font-display);font-size:13px;font-weight:600;letter-spacing:.2em;
}
.rail__cta{
  margin-top:auto;
  padding:10px 8px;
  border:1px solid var(--celadon-deep);
  color:var(--celadon);
  font-family:var(--font-display);font-size:13px;font-weight:600;letter-spacing:.14em;
  writing-mode:vertical-rl;text-orientation:upright;
  transition:background-color var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease),color var(--t-mid) var(--ease);
}
.rail__cta:hover{background:rgba(47,208,175,.12);border-color:var(--celadon);color:var(--celadon)}

/* ---------- 08 footer ---------- */
.site-footer{
  position:relative;
  margin-left:calc(-1 * var(--rail-w));
  padding:58px var(--rail-w) 34px;
  background-color:var(--ink-black);
  border-top:1px solid var(--haze-border);
  color:var(--text-muted);
  font-size:14px;
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(42,69,96,.17) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42,69,96,.17) 1px, transparent 1px);
  background-size:64px 64px;
  opacity:.55;
}
.footer-shell{position:relative;max-width:1320px;margin:0 auto}

.footer-lead{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.footer-lead__brand{display:inline-flex;align-items:center;gap:10px}
.footer-lead__mark{
  display:grid;place-items:center;width:28px;height:28px;
  background:var(--amber);color:var(--ink-black);
  font-family:var(--font-display);font-weight:800;font-size:15px;line-height:1;
}
.footer-lead__name{font-family:var(--font-display);font-size:19px;font-weight:700;letter-spacing:.1em;color:var(--paper)}
.footer-lead__line{font-size:13px;color:var(--text-muted);letter-spacing:.02em}

.footer-track{display:flex;align-items:center;gap:0;margin:24px 0 36px}
.footer-track__node{width:9px;height:9px;flex:0 0 auto}
.footer-track__node--amber{background:var(--amber)}
.footer-track__node--celadon{background:var(--celadon)}
.footer-track__line{
  flex:1 1 auto;height:1px;
  background:linear-gradient(90deg,var(--amber),var(--celadon-deep));
  opacity:.5;
}

.footer-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr)) minmax(220px,1.35fr);
  gap:34px 26px;
}
.footer-col__title{
  font-family:var(--font-display);
  font-size:13px;font-weight:700;letter-spacing:.2em;
  color:var(--paper);
  padding-bottom:9px;margin-bottom:12px;
  border-bottom:1px solid var(--haze-border);
}
.footer-col__list{display:flex;flex-direction:column;gap:9px}
.footer-col__list a{
  font-size:14px;color:var(--text-muted);
  border-bottom:1px solid transparent;
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease);
}
.footer-col__list a:hover{color:var(--amber);border-bottom-color:var(--amber)}
.footer-col__list--plain li{
  display:flex;flex-direction:column;gap:2px;
  font-family:var(--font-mono);font-size:13px;line-height:1.5;
  color:var(--paper);
  word-break:break-all;
}
.footer-col__key{font-family:var(--font-body);font-size:12px;color:var(--text-muted);letter-spacing:.06em}
.footer-col__action{margin-top:16px}

.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 26px;
  justify-content:space-between;align-items:baseline;
  margin-top:46px;padding-top:20px;
  border-top:1px solid var(--haze-border);
  font-size:12px;color:var(--text-muted);
}
.footer-legal,.footer-meta{font-family:var(--font-mono);letter-spacing:.03em}

/* ---------- 09 buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:12px 20px;
  font-family:var(--font-display);font-size:15px;font-weight:600;letter-spacing:.05em;
  border:1px solid var(--haze-border);
  background:rgba(27,58,92,.32);
  color:var(--paper);
  transition:background-color var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease),color var(--t-mid) var(--ease);
}
.btn:hover{border-color:var(--amber);color:var(--amber)}
.btn--amber{background:var(--amber);border-color:var(--amber);color:var(--ink-navy-900)}
.btn--amber:hover{background:var(--amber-deep);border-color:var(--amber-deep);color:var(--ink-navy-900)}
.btn--celadon{background:transparent;border-color:var(--celadon-deep);color:var(--celadon)}
.btn--celadon:hover{background:rgba(47,208,175,.12);border-color:var(--celadon);color:var(--celadon)}
.btn--ghost{background:transparent;border-color:var(--haze-border);color:var(--text-muted)}
.btn--ghost:hover{border-color:var(--celadon);color:var(--celadon)}

/* ---------- 10 layout utilities ---------- */
.container{width:100%;max-width:1320px;margin-inline:auto;padding-inline:clamp(20px,4vw,48px)}
.container--narrow{max-width:840px}
.container--wide{max-width:1600px}
.section{padding-block:clamp(48px,7vw,96px)}
.section--tight{padding-block:clamp(26px,3.5vw,50px)}
.stack > * + *{margin-top:var(--stack-gap,18px)}
.rule{height:1px;background:var(--haze-border);width:100%}
.eyebrow{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.24em;
  color:var(--celadon);
}
.prose{max-width:38em}
.prose > * + *{margin-top:1em}

.grid{display:grid;gap:clamp(18px,2.4vw,28px)}
.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(240px,34%) minmax(0,1fr)}
.grid--split-rev{grid-template-columns:minmax(0,1fr) minmax(240px,34%)}

/* ---------- 11 components ---------- */
.card{
  position:relative;
  padding:22px;
  border:1px solid var(--haze-border);
  background:var(--ink-navy-700);
  transition:border-color var(--t-mid) var(--ease),background-color var(--t-mid) var(--ease);
}
.card:hover{border-color:var(--amber)}
.card--glass{
  background:rgba(27,58,92,.30);
  border-color:rgba(42,69,96,.85);
  -webkit-backdrop-filter:blur(12px) saturate(130%);
  backdrop-filter:blur(12px) saturate(130%);
}
.card--paper{background:var(--paper);color:var(--ink-navy-900);border-color:var(--paper)}
.card--paper h2,.card--paper h3,.card--paper h4{color:var(--ink-navy-900)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;
  font-family:var(--font-mono);font-size:12px;line-height:1.5;letter-spacing:.03em;
  border:1px solid var(--haze-border);
  background:rgba(27,58,92,.34);
  color:var(--text-muted);
}
.tag--amber{border-color:var(--amber-deep);background:rgba(255,162,58,.11);color:var(--amber)}
.tag--celadon{border-color:var(--celadon-deep);background:rgba(47,208,175,.11);color:var(--celadon)}
.tag--violet{border-color:rgba(142,123,255,.55);background:rgba(142,123,255,.13);color:var(--violet)}

.stat{display:flex;flex-direction:column;gap:6px}
.stat__value{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(26px,3.4vw,38px);line-height:1;color:var(--amber);
}
.stat__label{font-size:13px;color:var(--text-muted)}

.breadcrumbs{display:flex;flex-wrap:wrap;gap:10px;font-family:var(--font-mono);font-size:13px;color:var(--text-muted)}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:10px}
.breadcrumbs__item:not(:last-child)::after{content:"/";color:var(--haze-border)}
.breadcrumbs__item a{border-bottom:1px solid transparent}
.breadcrumbs__item a:hover{color:var(--amber);border-bottom-color:var(--amber)}
.breadcrumbs__item[aria-current="page"]{color:var(--amber)}

/* ---------- 12 media frames ---------- */
.figure{
  position:relative;margin:0;overflow:hidden;
  border:1px solid var(--haze-border);
  background:var(--ink-navy-700);
}
.figure + .figure{margin-top:20px}
.figure__media{
  position:relative;
  aspect-ratio:16/10;
  background-color:var(--ink-navy-500);
  background-image:repeating-linear-gradient(135deg, rgba(42,69,96,.45) 0 1px, transparent 1px 12px);
}
.figure__media > img,
.figure__media > picture > img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.figure--wide .figure__media{aspect-ratio:21/9}
.figure--tall .figure__media{aspect-ratio:4/5}
.figure--square .figure__media{aspect-ratio:1/1}
.figure__caption{
  display:flex;align-items:baseline;gap:12px;
  padding:10px 14px;
  border-top:1px solid var(--haze-border);
  background:rgba(5,9,15,.6);
  font-size:13px;color:var(--text-muted);
}
.figure__caption .num{font-size:12px;color:var(--celadon)}

/* ---------- 13 responsive ---------- */
@media (max-width:1279.98px){
  .footer-grid{grid-template-columns:repeat(3,minmax(0,1fr));row-gap:38px}
}

@media (max-width:1023.98px){
  body{padding-left:0;padding-top:var(--topbar-h)}
  .status-rail{display:none}

  .brandbar{display:flex}
  .brandbar__tagline{display:none}

  .rail{
    top:var(--topbar-h);left:auto;right:0;bottom:0;
    width:min(330px,88vw);
    align-items:stretch;gap:0;
    padding:20px 18px 30px;
    border-right:0;border-left:1px solid var(--haze-border);
    background:linear-gradient(180deg,#0A1524 0%,#08121F 100%);
    transform:translateX(102%);
    transition:transform 260ms var(--ease);
    z-index:85;
  }
  .rail[data-open]{transform:translateX(0)}

  .rail__brand{flex-direction:row;align-items:center;gap:10px;width:100%;padding:0 4px 16px}
  .rail__wordmark{writing-mode:horizontal-tb;text-orientation:mixed;letter-spacing:.16em;font-size:12px}
  .rail__list{margin-top:6px}
  .rail__item{width:100%}
  .rail__link{
    flex-direction:row;justify-content:flex-start;align-items:center;
    width:100%;gap:14px;padding:14px 10px;
    border:0;border-bottom:1px solid rgba(42,69,96,.55);border-left-width:2px;
  }
  .rail__label{writing-mode:horizontal-tb;text-orientation:mixed;font-size:16px;letter-spacing:.06em}
  .rail__idx{min-width:32px;text-align:center}
  .rail__cta{
    margin-top:20px;writing-mode:horizontal-tb;text-orientation:mixed;
    text-align:center;padding:13px 10px;
  }

  .site-footer{margin-left:0;padding:44px clamp(18px,5vw,36px) 28px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-col--contact{grid-column:1 / -1}

  h1{font-size:32px}
  h2{font-size:26px}
  h3{font-size:22px}
}

@media (max-width:640px){
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-col--contact{grid-column:auto}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .grid--2,.grid--3,.grid--split,.grid--split-rev{grid-template-columns:minmax(0,1fr)}
  .footer-lead{gap:12px}
}

@media (max-width:900px){
  .grid--2,.grid--3,.grid--split,.grid--split-rev{grid-template-columns:minmax(0,1fr)}
}

/* ---------- 14 reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .status-rail__progress{transition:none}
  .rail{transition:none}
}