/* =========================================================
   澳发平台 · 共享站点样式 /assets/site.css
   骨架：12 列蓝图网格 · 深海蓝底 · 霓虹青信号 · 脉冲橙时间标记
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd,hr{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
hr{border:0}

/* ---------- 2. 设计令牌 ---------- */
:root{
  --c-deep:#0B2233;
  --c-deep-soft:#12314a;
  --c-slate:#2E3A42;
  --c-cyan:#35E0D8;
  --c-orange:#FF7A3D;
  --c-pearl:#F4F7F8;
  --c-paper:#EFEAE0;
  --c-moss:#6E7F5C;
  --c-clay:#B4633F;
  --c-ink:#101A21;
  --c-mist:#5A6B74;

  --line-on-dark:rgba(53,224,216,.22);
  --line-on-light:rgba(16,26,33,.14);
  --line-ghost:rgba(16,26,33,.07);
  --text-on-dark:#E9EFF2;
  --text-on-dark-soft:rgba(233,239,242,.68);

  --font-display:"Arial Narrow","Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-editorial:Georgia,"Songti SC","Source Han Serif SC","Noto Serif SC","SimSun",serif;
  --font-body:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --step-12:0.75rem;
  --step-14:0.875rem;
  --step-16:1rem;
  --step-20:1.25rem;
  --step-28:1.75rem;
  --step-40:2.5rem;
  --baseline:8px;

  --shell:1240px;
  --gutter:clamp(16px,4vw,40px);
  --gap:clamp(16px,2.2vw,28px);
  --radius:2px;
  --shadow-soft:0 1px 0 rgba(16,26,33,.05),0 16px 32px -26px rgba(11,34,51,.55);
  --ease:cubic-bezier(.2,.8,.2,1);
}

/* ---------- 3. 基础排版 ---------- */
body{
  font-family:var(--font-body);
  font-size:clamp(1rem,.97rem + .18vw,1.125rem);
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-pearl);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.14;letter-spacing:-.02em}
h1{font-size:clamp(2.4rem,6vw,4.6rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.5rem)}
h3{font-size:clamp(1.15rem,1.9vw,1.4rem);font-weight:700}
h4{font-size:1rem;font-weight:700}
p{max-width:44ch}
strong{font-weight:700}
code,kbd{font-family:var(--font-mono);font-size:.9em;letter-spacing:.02em}
::selection{background:var(--c-cyan);color:var(--c-deep)}
:focus-visible{outline:2px solid var(--c-cyan);outline-offset:3px;border-radius:var(--radius)}
#main-content{scroll-margin-top:140px}

.mono{font-family:var(--font-mono);letter-spacing:.02em;font-weight:500}
.label{font-family:var(--font-mono);font-size:var(--step-12);letter-spacing:.16em;text-transform:uppercase;font-weight:600}
.index-label{font-family:var(--font-mono);font-size:var(--step-12);letter-spacing:.18em;text-transform:uppercase;color:var(--c-clay)}
.section--deep .index-label,.section--slate .index-label{color:var(--c-cyan)}
.prose{max-width:38ch}
.prose p + p{margin-top:1em}
.lede{font-size:clamp(1.0625rem,1.6vw,1.25rem);line-height:1.7;max-width:40ch;color:var(--c-slate)}
.section--deep .lede,.section--slate .lede{color:var(--text-on-dark-soft)}
.editorial{font-family:var(--font-editorial);font-weight:500;letter-spacing:.01em}

/* ---------- 4. 布局容器与网格 ---------- */
.container{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.container--wide{max-width:1440px}
.container--narrow{max-width:860px}
.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gap)}
.grid > *{min-width:0}
.col-1{grid-column:span 1}
.col-2{grid-column:span 2}
.col-3{grid-column:span 3}
.col-4{grid-column:span 4}
.col-5{grid-column:span 5}
.col-6{grid-column:span 6}
.col-7{grid-column:span 7}
.col-8{grid-column:span 8}
.col-9{grid-column:span 9}
.col-10{grid-column:span 10}
.col-11{grid-column:span 11}
.col-12{grid-column:span 12}
.span-full{grid-column:1 / -1}
.stack > * + *{margin-top:var(--stack-gap,16px)}

.section{padding-block:clamp(52px,7vw,104px)}
.section--tight{padding-block:clamp(32px,4vw,56px)}
.section--deep{background:var(--c-deep);color:var(--text-on-dark)}
.section--slate{background:var(--c-slate);color:var(--text-on-dark)}
.section--paper{background:var(--c-paper)}
.section--pearl{background:var(--c-pearl)}
.section--deep a,.section--slate a{color:inherit}
.section-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 20px;margin-bottom:clamp(20px,3vw,36px)}
.section-head__title{font-size:clamp(1.5rem,3vw,2.25rem)}
.section-head__note{margin-left:auto;font-family:var(--font-mono);font-size:var(--step-12);letter-spacing:.08em;color:var(--c-mist)}
.section--deep .section-head__note,.section--slate .section-head__note{color:var(--text-on-dark-soft)}

.rule{height:1px;background:var(--line-on-light);border:0;width:100%}
.rule--signal{background:linear-gradient(90deg,var(--c-cyan),rgba(53,224,216,0))}
.section--deep .rule,.section--slate .rule{background:var(--line-on-dark)}
.blueprint-lines{position:absolute;inset:0;pointer-events:none;background-image:repeating-linear-gradient(90deg,var(--line-ghost) 0 1px,transparent 1px 8.3333%)}
.section--deep .blueprint-lines,.section--slate .blueprint-lines{background-image:repeating-linear-gradient(90deg,rgba(53,224,216,.09) 0 1px,transparent 1px 8.3333%)}

/* ---------- 5. 标签与状态 ---------- */
.chip{display:inline-flex;align-items:center;gap:.45em;padding:.32em .72em;border:1px solid var(--line-on-dark);border-radius:999px;font-size:var(--step-12);letter-spacing:.05em;color:var(--text-on-dark-soft)}
.chip--mono{font-family:var(--font-mono);letter-spacing:.02em;color:var(--c-orange);border-color:rgba(255,122,61,.42)}
.chip--on-light{color:var(--c-slate);border-color:var(--line-on-light)}
.tag{display:inline-block;font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.14em;text-transform:uppercase;padding:.2em .55em;border:1px solid currentColor;border-radius:var(--radius);color:var(--c-moss)}
.tag--clay{color:var(--c-clay)}
.tag--cyan{color:var(--c-cyan)}
.tag--deep{color:var(--c-deep)}

/* ---------- 6. 按钮与链接 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;min-height:40px;padding:.55em 1.15em;border:1px solid transparent;border-radius:var(--radius);font-family:var(--font-body);font-size:var(--step-14);font-weight:600;letter-spacing:.03em;cursor:pointer;transition:background-color .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),transform .3s var(--ease)}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--c-cyan);color:var(--c-deep);border-color:var(--c-cyan)}
.btn--primary:hover{background:transparent;color:var(--c-cyan)}
.btn--ghost{background:transparent;color:var(--text-on-dark);border-color:var(--line-on-dark)}
.btn--ghost:hover{color:var(--c-cyan);border-color:var(--c-cyan)}
.btn--deep{background:var(--c-deep);color:var(--c-pearl);border-color:var(--c-deep)}
.btn--deep:hover{background:var(--c-slate);border-color:var(--c-slate)}
.btn--outline{background:transparent;color:var(--c-ink);border-color:var(--line-on-light)}
.btn--outline:hover{color:var(--c-deep);border-color:var(--c-cyan)}
.btn--block{width:100%}
.link-quiet{position:relative;display:inline-flex;align-items:center;gap:.4em;font-size:var(--step-14);letter-spacing:.06em;color:var(--text-on-dark-soft);border-bottom:1px dashed var(--line-on-dark);padding-bottom:1px;transition:color .25s var(--ease),border-color .25s var(--ease)}
.link-quiet::after{content:"→";font-family:var(--font-mono);font-size:.9em}
.link-quiet:hover{color:var(--c-cyan);border-bottom-color:var(--c-cyan)}

/* ---------- 7. 面包屑 ---------- */
.breadcrumbs{font-family:var(--font-mono);font-size:var(--step-12);letter-spacing:.06em;color:var(--c-mist)}
.breadcrumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:.5em}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:.5em}
.breadcrumbs__item::after{content:"/";color:rgba(90,107,116,.6)}
.breadcrumbs__item:last-child::after{content:""}
.breadcrumbs__link{border-bottom:1px solid transparent;transition:color .25s var(--ease),border-color .25s var(--ease)}
.breadcrumbs__link:hover{color:var(--c-deep);border-bottom-color:var(--c-cyan)}
.breadcrumbs--on-dark{color:var(--text-on-dark-soft)}
.breadcrumbs--on-dark .breadcrumbs__link:hover{color:var(--c-cyan);border-bottom-color:var(--c-cyan)}

/* ---------- 8. 卡片与图片容器 ---------- */
.card{background:#fff;border:1px solid var(--line-on-light);border-radius:var(--radius);padding:clamp(18px,2.4vw,28px);box-shadow:var(--shadow-soft);transition:transform .3s var(--ease),border-color .3s var(--ease)}
.card:hover{transform:translateY(-2px);border-color:var(--c-cyan)}
.card--deep{background:rgba(46,58,66,.42);border-color:var(--line-on-dark);color:var(--text-on-dark);box-shadow:none}
.card--deep:hover{border-color:var(--c-cyan)}

.media-frame{position:relative;overflow:hidden;border:1px solid var(--line-on-light);border-radius:var(--radius);background:linear-gradient(135deg,var(--c-slate) 0%,var(--c-deep) 62%,var(--c-deep-soft) 100%);min-height:180px}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--16x9{aspect-ratio:16 / 9}
.media-frame--4x3{aspect-ratio:4 / 3}
.media-frame--3x4{aspect-ratio:3 / 4}
.media-frame--1x1{aspect-ratio:1 / 1}
.media-frame--diagonal{clip-path:polygon(0 0,100% 0,100% 86%,0 100%)}
.media-frame--fill{height:100%;min-height:100%}
.media-frame--grid::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:repeating-linear-gradient(90deg,rgba(53,224,216,.10) 0 1px,transparent 1px 12.5%),repeating-linear-gradient(0deg,rgba(53,224,216,.08) 0 1px,transparent 1px 25%)}
.media-frame__caption{margin-top:10px;font-family:var(--font-mono);font-size:var(--step-12);letter-spacing:.04em;color:var(--c-mist)}
.section--deep .media-frame,.section--slate .media-frame{border-color:var(--line-on-dark)}
.section--deep .media-frame__caption,.section--slate .media-frame__caption{color:var(--text-on-dark-soft)}

/* ---------- 9. 跳转链接 ---------- */
.skip-link{position:absolute;left:50%;top:-120px;transform:translateX(-50%);z-index:120;padding:.65em 1.15em;background:var(--c-cyan);color:var(--c-deep);font-size:var(--step-14);font-weight:700;border-radius:0 0 var(--radius) var(--radius);transition:top .25s var(--ease)}
.skip-link:focus{top:0}

/* ---------- 10. 页头：居中刊头 + 索引导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-deep);color:var(--text-on-dark)}
.header-inner{position:relative;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter)}
.masthead{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;padding-block:18px 14px}
.masthead__brand{display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center}
.masthead__side{display:flex;align-items:center;gap:12px}
.masthead__side--start{justify-content:flex-start}
.masthead__side--end{justify-content:flex-end}

.brand{display:inline-flex;align-items:center;gap:.6em}
.brand__mark{width:10px;height:10px;background:var(--c-cyan);transform:rotate(45deg);box-shadow:0 0 0 3px rgba(53,224,216,.18)}
.brand__name{font-family:var(--font-display);font-weight:800;font-size:clamp(1.35rem,2.4vw,1.85rem);letter-spacing:.16em;color:var(--c-pearl)}
.brand__tagline{font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.3em;color:var(--text-on-dark-soft)}
.brand--footer .brand__name{font-size:1.3rem;letter-spacing:.12em}

.site-nav{position:relative;display:flex;justify-content:center;align-items:center;border-top:1px solid var(--line-on-dark);padding-block:10px 12px}
.site-nav__list{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:clamp(10px,2.4vw,32px)}
.site-nav__item{position:relative}
.site-nav__link{position:relative;display:inline-flex;align-items:baseline;gap:.45em;padding:.35em .15em;font-size:.9375rem;font-weight:500;letter-spacing:.06em;color:var(--text-on-dark-soft);transition:color .3s var(--ease)}
.site-nav__index{font-family:var(--font-mono);font-size:.625rem;letter-spacing:.04em;color:var(--c-orange);opacity:.8}
.site-nav__label{display:inline-block}
.site-nav__link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--c-cyan);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
.site-nav__link:hover{color:var(--c-pearl)}
.site-nav__link:hover::after{transform:scaleX(1)}
.site-nav__link[aria-current="page"]{color:var(--c-cyan)}
.site-nav__link[aria-current="page"]::after{transform:scaleX(1)}
.site-nav__meta{position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:.6875rem;letter-spacing:.14em;color:var(--text-on-dark-soft);white-space:nowrap}
.site-nav__actions{display:none}

.nav-toggle{display:none;align-items:center;gap:8px;padding:.45em .75em;border:1px solid var(--line-on-dark);border-radius:var(--radius);color:var(--text-on-dark);font-size:var(--step-14);letter-spacing:.08em}
.nav-toggle__bars{position:relative;display:block;width:16px;height:10px}
.nav-toggle__bars::before,.nav-toggle__bars::after{content:"";position:absolute;left:0;right:0;height:1px;background:var(--c-cyan);transition:transform .3s var(--ease)}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{transform:translateY(4.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{transform:translateY(-4.5px) rotate(-45deg)}

.signal-bar{height:2px;background:rgba(53,224,216,.14)}
.signal-bar__pulse{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--c-cyan) 0%,var(--c-orange) 100%);transition:width .12s linear}

/* ---------- 11. 页脚：蓝图刻度收边 ---------- */
.site-footer{background:var(--c-deep);color:var(--text-on-dark)}
.footer-ruler{display:grid;grid-template-columns:repeat(12,1fr);height:22px;max-width:var(--shell);margin-inline:auto;padding-inline:var(--gutter);border-bottom:1px solid var(--line-on-dark)}
.footer-ruler span{border-left:1px solid var(--line-on-dark)}
.footer-ruler span:last-child{border-right:1px solid var(--line-on-dark)}
.footer-inner{max-width:var(--shell);margin-inline:auto;padding:clamp(36px,5vw,64px) var(--gutter) clamp(28px,3vw,44px);display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr)) minmax(0,1.25fr);gap:clamp(24px,3vw,40px)}
.footer-brand__tagline{margin-top:12px;font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.26em;color:var(--c-cyan)}
.footer-brand__note{margin-top:12px;font-size:var(--step-14);line-height:1.75;color:var(--text-on-dark-soft);max-width:32ch}
.footer-col__title{font-family:var(--font-mono);font-size:var(--step-12);font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--c-pearl);padding-bottom:10px;border-bottom:1px solid var(--line-on-dark);margin-bottom:14px}
.footer-col__list{display:grid;gap:9px}
.footer-link{font-size:.9375rem;color:var(--text-on-dark-soft);border-bottom:1px solid transparent;padding-bottom:1px;transition:color .25s var(--ease),border-color .25s var(--ease)}
.footer-link:hover{color:var(--c-cyan);border-bottom-color:var(--c-cyan)}
.footer-contact__list{display:grid;gap:12px}
.footer-contact__item{display:grid;gap:2px}
.footer-contact__key{font-size:.6875rem;letter-spacing:.16em;color:var(--c-orange)}
.footer-contact__val{font-size:.9375rem;color:var(--text-on-dark);word-break:break-word}
.footer-contact__hours{margin-top:16px;padding-left:10px;border-left:2px solid var(--c-clay);font-size:var(--step-14);color:var(--text-on-dark-soft)}
.footer-base{max-width:var(--shell);margin-inline:auto;padding:18px var(--gutter) 32px;border-top:1px solid var(--line-on-dark);display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:var(--step-14);color:var(--text-on-dark-soft)}
.footer-base__copy{max-width:none}
.footer-base__icp{font-size:var(--step-12);color:var(--c-pearl);border:1px solid rgba(180,99,63,.65);border-radius:var(--radius);padding:.2em .6em}
.footer-base__nav{margin-left:auto;display:flex;flex-wrap:wrap;gap:16px}

/* ---------- 12. 显现动效 ---------- */
[data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 13. 响应式 ---------- */
@media (max-width:1200px){
  .site-nav__meta{display:none}
}
@media (max-width:1100px){
  .footer-inner{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .masthead{grid-template-columns:1fr auto;align-items:center;gap:12px;padding-block:14px}
  .masthead__brand{align-items:flex-start;text-align:left}
  .masthead__side{display:none}
  .site-nav{position:absolute;left:0;right:0;top:100%;display:block;max-height:0;overflow:hidden;padding:0 var(--gutter);background:var(--c-deep);border-top:1px solid var(--line-on-dark);border-bottom:1px solid var(--line-on-dark);transition:max-height .42s var(--ease),padding .3s var(--ease)}
  .site-nav[data-open]{max-height:min(78vh,620px);overflow-y:auto;padding:14px var(--gutter) 22px}
  .site-nav__list{display:grid;gap:0;justify-items:stretch}
  .site-nav__link{display:flex;justify-content:space-between;align-items:center;padding:.9em .2em;border-bottom:1px solid rgba(53,224,216,.12);font-size:1rem}
  .site-nav__link::after{display:none}
  .site-nav__index{font-size:.6875rem}
  .site-nav__meta{position:static;transform:none;display:block;margin-top:14px;white-space:normal}
  .site-nav__actions{display:flex;flex-direction:column;gap:10px;margin-top:16px}
  .grid{grid-template-columns:repeat(6,minmax(0,1fr))}
  .col-1,.col-2,.col-3{grid-column:span 3}
  .col-4,.col-5,.col-6{grid-column:span 6}
  .col-7,.col-8,.col-9,.col-10,.col-11,.col-12{grid-column:span 6}
}
@media (max-width:620px){
  .footer-inner{grid-template-columns:1fr}
  .footer-base{flex-direction:column;align-items:flex-start}
  .footer-base__nav{margin-left:0}
  .grid{grid-template-columns:1fr}
  .col-1,.col-2,.col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-10,.col-11,.col-12{grid-column:1 / -1}
  .brand__tagline{letter-spacing:.2em}
}

/* ---------- 14. 动效降级 ---------- */
@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;transition:none !important}
  .signal-bar__pulse{transition:none}
}