/* =========================================================
   /assets/site.css — 澳发平台 · 中文站 共享层
   港口潮汐 × 数据仪表盘：L 形框架导航 / 堆叠面板 / 米白斜切页脚
   ========================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root{
  --ink:#0B1E2D;
  --ink-2:#12344A;
  --paper:#F4F1EA;
  --sand:#D9CDBB;
  --coral:#F26B4F;
  --coral-soft:#F58A72;
  --celadon:#7FB7A3;
  --stone:#6F7B80;
  --moss:#4E6B57;
  --clay:#B86B4B;
  --mist:#8FA6B2;

  --line: rgba(143,166,178,.26);
  --line-strong: rgba(143,166,178,.46);
  --line-dark: rgba(11,30,45,.16);
  --glass: rgba(18,52,74,.58);
  --glass-deep: rgba(11,30,45,.88);

  --font-display:"HarmonyOS Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-serif:"Songti SC","Source Han Serif SC","Noto Serif SC",Georgia,"Times New Roman",serif;
  --font-mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --rail-w:296px;
  --bar-h:58px;
  --pad:clamp(18px,4vw,52px);
  --stack:clamp(20px,3vw,34px);
  --radius:2px;
}

/* ---------- 2. 重置与基础 ---------- */
*,*::before,*::after{ box-sizing:border-box; }

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--bar-h) + 18px);
}

body{
  margin:0;
  padding-left:var(--rail-w);
  padding-top:var(--bar-h);
  min-height:100vh;
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.8;
  color:var(--paper);
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 560px at 92% -10%, rgba(127,183,163,.15), transparent 62%),
    radial-gradient(880px 520px at -6% 104%, rgba(184,107,75,.14), transparent 64%),
    linear-gradient(180deg,#0B1E2D 0%,#0A1A27 58%,#0B1E2D 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(90deg, transparent 0 95px, rgba(143,166,178,.06) 95px 96px),
    repeating-linear-gradient(180deg, transparent 0 95px, rgba(143,166,178,.045) 95px 96px);
}

#main-content,
main{
  position:relative;
  z-index:1;
}

img,svg,video{ max-width:100%; }
img{ height:auto; display:block; }

a{ color:inherit; }
p{ margin:0 0 1em; }
ul,ol{ margin:0 0 1em; padding-left:1.2em; }
figure{ margin:0; }
button{ font:inherit; }

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

::selection{
  background:var(--coral);
  color:var(--ink);
}

/* ---------- 3. 排版 ---------- */
h1,h2,h3,h4{
  margin:0 0 .6em;
  font-family:var(--font-display);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.12;
  color:var(--paper);
}
h1{ font-size:clamp(34px,5.2vw,72px); line-height:1.08; }
h2{ font-size:clamp(26px,3.4vw,42px); line-height:1.14; }
h3{ font-size:clamp(20px,2.2vw,26px); line-height:1.26; }
h4{ font-size:clamp(17px,1.6vw,20px); line-height:1.34; }

.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
}

.lead{
  font-size:clamp(17px,1.55vw,19px);
  line-height:1.85;
  color:rgba(244,241,234,.88);
  max-width:62ch;
}

/* ---------- 4. 通用版式组件 ---------- */
.container{
  width:min(100%,1180px);
  margin-inline:auto;
  padding-inline:var(--pad);
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin:0 0 14px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--celadon);
}
.eyebrow::before{
  content:"";
  width:24px;
  height:2px;
  background:var(--coral);
  flex:none;
}

.panel{
  position:relative;
  padding:clamp(20px,3vw,36px);
  background:var(--ink-2);
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.panel--glass{
  background:var(--glass);
  border-color:rgba(127,183,163,.24);
  -webkit-backdrop-filter:blur(14px) saturate(130%);
  backdrop-filter:blur(14px) saturate(130%);
}
.panel--paper{
  background:var(--paper);
  color:var(--ink);
  border-color:var(--line-dark);
}
.panel--paper h2,.panel--paper h3,.panel--paper h4{ color:var(--ink); }

.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin:0 0 22px;
  padding:0;
  list-style:none;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--mist);
}
.crumbs li{ display:flex; align-items:center; gap:8px; }
.crumbs a{
  color:var(--mist);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .16s ease,border-color .16s ease;
}
.crumbs a:hover{ color:var(--celadon); border-bottom-color:var(--celadon); }
.crumbs__sep{ color:var(--stone); }
.crumbs [aria-current="page"]{ color:var(--paper); }

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 9px;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:var(--mist);
  line-height:1.5;
}
.tag--celadon{ color:var(--celadon); border-color:rgba(127,183,163,.52); background:rgba(127,183,163,.1); }
.tag--clay{ color:#E2A184; border-color:rgba(184,107,75,.52); background:rgba(184,107,75,.12); }
.tag--moss{ color:var(--paper); background:var(--moss); border-color:var(--moss); }

.meta-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  margin:0;
  padding:0;
  list-style:none;
}
.meta-item{ display:flex; align-items:baseline; gap:8px; font-size:13.5px; }
.meta-key{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--stone);
}
.meta-value{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  color:var(--paper);
}

.note-strip{
  padding:12px 18px;
  border-left:2px solid var(--coral);
  background:linear-gradient(90deg,rgba(242,107,79,.1),transparent 72%);
  font-size:14px;
  line-height:1.75;
  color:rgba(244,241,234,.82);
}
.note-strip p:last-child{ margin-bottom:0; }

.divider-slant{
  position:relative;
  height:clamp(30px,4.5vw,64px);
  margin-block:clamp(28px,4vw,56px);
  overflow:hidden;
}
.divider-slant::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(143,166,178,.3) 0 1px,transparent 1px 16px);
  clip-path:polygon(0 66%,100% 0,100% 26%,0 92%);
}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:11px 18px;
  border:1px solid transparent;
  border-radius:var(--radius);
  font-family:var(--font-body);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  line-height:1.4;
  text-align:center;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn--primary{ background:var(--coral); color:var(--ink); }
.btn--primary:hover{ background:var(--coral-soft); }
.btn--ghost{ background:transparent; color:var(--paper); border-color:var(--line-strong); }
.btn--ghost:hover{ color:var(--celadon); border-color:var(--celadon); }
.btn--sand{ background:var(--sand); color:var(--ink); }
.btn--sand:hover{ background:var(--paper); }
.btn:active{ transform:translateY(1px); }

/* 响应式图片容器基础规则（页面阶段放置图片占位） */
.media-frame{
  position:relative;
  overflow:hidden;
  margin:0;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:
    radial-gradient(120% 90% at 78% 8%,rgba(127,183,163,.18),transparent 58%),
    linear-gradient(150deg,var(--ink-2),#081520);
  aspect-ratio:16 / 10;
}
.media-frame img,
.media-frame svg{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.86) contrast(1.03);
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:28%;
  pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(11,30,45,.62));
}
.media-frame--wide{ aspect-ratio:21 / 9; }
.media-frame--tall{ aspect-ratio:3 / 4; }
.media-frame__caption{
  position:absolute;
  left:14px;
  bottom:12px;
  z-index:1;
  margin:0;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  color:var(--mist);
}

/* ---------- 5. 页头：L 形框架导航 ---------- */
.skip-link{
  position:fixed;
  left:16px;
  top:16px;
  z-index:200;
  padding:12px 18px;
  background:var(--paper);
  color:var(--ink);
  font-weight:700;
  font-size:15px;
  text-decoration:none;
  border-radius:var(--radius);
  transform:translateY(-220%);
  transition:transform .2s ease;
  pointer-events:auto;
}
.skip-link:focus{ transform:translateY(0); }

.site-header{
  position:fixed;
  inset:0;
  z-index:60;
  pointer-events:none;
}

/* 左侧航标栏 */
.site-rail{
  position:absolute;
  top:0;
  bottom:0;
  left:0;
  width:var(--rail-w);
  display:flex;
  flex-direction:column;
  padding:24px 22px 22px;
  pointer-events:auto;
  overflow-y:auto;
  overscroll-behavior:contain;
  background:linear-gradient(180deg,rgba(18,52,74,.95),rgba(11,30,45,.93));
  -webkit-backdrop-filter:blur(16px) saturate(125%);
  backdrop-filter:blur(16px) saturate(125%);
}
.site-rail::after{
  content:"";
  position:absolute;
  top:0;
  right:0;
  width:1px;
  height:100%;
  background-image:repeating-linear-gradient(180deg,rgba(143,166,178,.62) 0 1px,transparent 1px 14px);
  opacity:.5;
}

.brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
  color:var(--paper);
  text-decoration:none;
}
.brand-mark{
  position:relative;
  flex:none;
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  border-radius:var(--radius);
  background:linear-gradient(150deg,var(--coral),var(--clay));
  box-shadow:inset 0 0 0 1px rgba(244,241,234,.3);
}
.brand-mark__tide{
  display:block;
  width:20px;
  height:20px;
  background-image:repeating-linear-gradient(180deg,var(--ink) 0 2px,transparent 2px 6px);
  opacity:.86;
}
.brand-mark--dark{
  background:var(--ink);
  box-shadow:inset 0 0 0 1px rgba(217,205,187,.28);
}
.brand-mark--dark .brand-mark__tide{
  background-image:repeating-linear-gradient(180deg,var(--sand) 0 2px,transparent 2px 6px);
}
.brand-copy{ display:flex; flex-direction:column; gap:2px; min-width:0; }
.brand-name{
  font-family:var(--font-display);
  font-size:18px;
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.1;
  color:var(--paper);
}
.brand-sub{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.12em;
  color:var(--mist);
}

.rail-label{
  display:flex;
  align-items:center;
  gap:10px;
  margin:24px 0 10px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--stone);
}
.rail-label::after{
  content:"";
  flex:1;
  height:1px;
  background:var(--line);
}

.frame-nav{ margin:0; }

.nav-list{
  display:flex;
  flex-direction:column;
  gap:2px;
  margin:0;
  padding:0;
  list-style:none;
}
.nav-item{ margin:0; }

.nav-link{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:11px 12px 11px 16px;
  border:1px solid transparent;
  border-radius:var(--radius);
  color:var(--paper);
  font-size:15.5px;
  font-weight:600;
  letter-spacing:.01em;
  text-decoration:none;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.nav-link::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:2px;
  height:0;
  background:var(--coral);
  transform:translateY(-50%);
  transition:height .18s ease,width .18s ease;
}
.nav-link:hover{
  background:rgba(244,241,234,.07);
  border-color:var(--line);
}
.nav-link:hover::before{ height:58%; }
.nav-link[aria-current="page"]{
  background:var(--paper);
  border-color:var(--paper);
  color:var(--ink);
  font-weight:800;
}
.nav-link[aria-current="page"]::before{
  left:-1px;
  width:4px;
  height:100%;
  background:var(--coral);
}
.nav-name{ min-width:0; }
.nav-index{
  flex:none;
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.1em;
  color:var(--stone);
  transition:color .18s ease;
}
.nav-link:hover .nav-index{ color:var(--celadon); }
.nav-link[aria-current="page"] .nav-index{ color:var(--clay); }

.rail-actions{
  display:grid;
  gap:10px;
  margin-top:auto;
  padding-top:24px;
}
.rail-actions .btn{ width:100%; }

.rail-note{
  margin:14px 0 0;
  font-size:12.5px;
  line-height:1.7;
  color:var(--mist);
}

/* 顶部横条 */
.site-topbar{
  position:absolute;
  top:0;
  left:var(--rail-w);
  right:0;
  height:var(--bar-h);
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 clamp(16px,3vw,32px);
  pointer-events:auto;
  background:var(--glass-deep);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(12px) saturate(120%);
  backdrop-filter:blur(12px) saturate(120%);
}

.topbar-track{
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  background:rgba(143,166,178,.16);
  overflow:hidden;
}
.topbar-progress{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--celadon),var(--coral));
  transition:width .12s linear;
}

.topbar-crumb{
  display:flex;
  align-items:center;
  gap:10px;
  margin:0;
  min-width:0;
  font-size:13px;
  letter-spacing:.04em;
  color:var(--mist);
}
.topbar-dot{
  flex:none;
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--celadon);
  box-shadow:0 0 0 3px rgba(127,183,163,.16);
}
.topbar-label{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.18em;
  color:var(--stone);
}
.topbar-current{
  overflow:hidden;
  white-space:nowrap;
  text-overflow:ellipsis;
  font-family:var(--font-display);
  font-size:14px;
  font-weight:800;
  letter-spacing:.02em;
  color:var(--paper);
}
.topbar-meta{
  margin:0 0 0 auto;
  font-size:11.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--stone);
  white-space:nowrap;
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  min-height:40px;
  padding:8px 12px;
  margin-left:auto;
  background:transparent;
  color:var(--paper);
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  font-size:13px;
  font-weight:700;
  letter-spacing:.1em;
  cursor:pointer;
  pointer-events:auto;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{ border-color:var(--celadon); color:var(--celadon); }
.nav-toggle__bars{
  display:grid;
  gap:4px;
  width:18px;
  flex:none;
}
.nav-toggle__bars span{
  display:block;
  height:2px;
  background:var(--coral);
  transition:transform .2s ease,opacity .2s ease;
}
.site-header[data-open] .nav-toggle__bars span:first-child{
  transform:translateY(3px) rotate(45deg);
}
.site-header[data-open] .nav-toggle__bars span:last-child{
  transform:translateY(-3px) rotate(-45deg);
}
.nav-toggle__text{ line-height:1; }

/* ---------- 6. 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  margin-top:clamp(48px,7vw,110px);
}

.footer-deck{
  padding:calc(34px + clamp(30px,4vw,48px)) 0 clamp(30px,4vw,48px);
  background:var(--sand);
  color:var(--ink);
  clip-path:polygon(0 34px,100% 0,100% 100%,0 100%);
}

.footer-inner{
  width:min(100%,1180px);
  margin-inline:auto;
  padding-inline:var(--pad);
  display:grid;
  grid-template-columns:1.5fr .85fr .85fr 1.25fr;
  gap:clamp(22px,3vw,44px);
  align-items:start;
}

.footer-brand__link{
  display:inline-flex;
  align-items:center;
  gap:12px;
  color:var(--ink);
  text-decoration:none;
}
.footer-brand__name{
  font-family:var(--font-display);
  font-size:19px;
  font-weight:800;
  letter-spacing:-.01em;
  line-height:1.2;
}
.footer-tag{
  margin:18px 0 8px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.16em;
  color:var(--moss);
}
.footer-desc{
  margin:0;
  max-width:34ch;
  font-size:14.5px;
  line-height:1.8;
  color:#3B4A52;
}

.footer-col__title{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0 0 14px;
  font-family:var(--font-display);
  font-size:13px;
  font-weight:800;
  letter-spacing:.12em;
  color:var(--moss);
}
.footer-col__title::before{
  content:"";
  flex:none;
  width:14px;
  height:2px;
  background:var(--clay);
}

.footer-list{
  display:grid;
  gap:10px;
  margin:0;
  padding:0;
  list-style:none;
}
.footer-link{
  display:inline-block;
  padding-bottom:2px;
  border-bottom:1px solid transparent;
  color:var(--ink);
  font-size:15px;
  text-decoration:none;
  transition:color .16s ease,border-color .16s ease;
}
.footer-link:hover{
  color:var(--clay);
  border-bottom-color:var(--clay);
}

.footer-contact__row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin:0 0 12px;
  font-size:14.5px;
}
.footer-contact__row--wide{ align-items:flex-start; }
.footer-contact__row--wide .footer-value{ flex:1 1 200px; }
.footer-key{
  flex:none;
  padding:2px 6px;
  border:1px solid rgba(78,107,87,.38);
  border-radius:var(--radius);
  font-size:10.5px;
  letter-spacing:.14em;
  color:var(--moss);
}
.footer-value{
  font-family:var(--font-mono);
  font-size:13.5px;
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
  color:var(--ink);
  overflow-wrap:anywhere;
}

.copy-btn{
  flex:none;
  min-width:64px;
  padding:4px 9px;
  background:transparent;
  color:var(--ink);
  border:1px solid rgba(11,30,45,.3);
  border-radius:var(--radius);
  font-family:var(--font-body);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.08em;
  cursor:pointer;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease;
}
.copy-btn:hover{
  background:var(--ink);
  color:var(--sand);
  border-color:var(--ink);
}
.copy-btn[data-copied="true"]{
  background:var(--celadon);
  border-color:var(--celadon);
  color:var(--ink);
}

.footer-legal{
  padding:22px var(--pad) 30px;
  background:var(--ink);
  color:var(--mist);
  border-top:1px solid var(--line);
}
.footer-legal__inner{
  width:min(100%,1180px);
  margin-inline:auto;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
}
.footer-legal__item{
  margin:0;
  font-size:13px;
  color:var(--mist);
}
.footer-legal__note{
  flex:1 1 320px;
  margin:0;
  font-size:12.5px;
  line-height:1.75;
  color:var(--stone);
}
.to-top{
  margin-left:auto;
  padding:7px 12px;
  background:transparent;
  color:var(--paper);
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  font-size:12px;
  font-weight:700;
  letter-spacing:.1em;
  cursor:pointer;
  transition:border-color .16s ease,color .16s ease;
}
.to-top:hover{ border-color:var(--coral); color:var(--coral); }

/* ---------- 7. 响应式：平板与手机 ---------- */
@media (max-width:1079px){
  :root{ --bar-h:60px; }

  body{ padding-left:0; }

  .site-rail{
    position:fixed;
    top:var(--bar-h);
    left:0;
    right:0;
    bottom:0;
    width:auto;
    padding:22px var(--pad) 40px;
    border-bottom:1px solid var(--line);
    overflow-y:auto;
    opacity:0;
    transform:translateY(-10px);
    pointer-events:none;
    transition:opacity .2s ease,transform .2s ease;
  }
  .site-rail::after{ display:none; }
  .site-header[data-open] .site-rail{
    opacity:1;
    transform:none;
    pointer-events:auto;
  }

  .site-topbar{ left:0; }
  .nav-toggle{ display:inline-flex; }
  .topbar-meta{ display:none; }

  .rail-actions{ margin-top:26px; padding-top:0; }
  .rail-actions .btn{ width:auto; }

  .footer-inner{
    grid-template-columns:1fr 1fr;
    gap:clamp(22px,4vw,36px);
  }
  .footer-brand{ grid-column:1 / -1; }
  .footer-contact{ grid-column:1 / -1; }
}

@media (max-width:720px){
  body{ font-size:16.5px; }

  .topbar-crumb{ gap:8px; font-size:12.5px; }
  .topbar-current{ font-size:13.5px; }

  .brand-mark{ width:40px; height:40px; }
  .brand-name{ font-size:17px; }

  .footer-inner{
    grid-template-columns:1fr;
    gap:26px;
  }
  .footer-deck{ clip-path:polygon(0 18px,100% 0,100% 100%,0 100%); }
  .footer-legal__inner{ gap:10px 16px; }
  .footer-legal__note{ flex:1 1 100%; }
  .to-top{ margin-left:0; }
}

/* ---------- 8. 动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .topbar-progress{ transition:none; }
  .btn:active{ transform:none; }
}