/* ============================================================
   加拿大预测站 · 共享样式 /assets/site.css
   蓝图网格 / 珠宝色分区 / 纸张叠层 / 印刷边框
   ============================================================ */

/* ---------- 1. 变量 ---------- */
:root{
  --ink-950:#0A1424;
  --ink-800:#16324C;
  --indigo-600:#2E2F72;
  --wine-700:#6E2337;
  --silver-300:#C6CED6;
  --amber-500:#E28A1B;
  --signal-500:#1FA97A;
  --paper-100:#F5F2EA;
  --slate-700:#3C4C60;
  --cream-200:#FFE6BE;

  --paper-card:#FFFDF7;

  --rule-dark:rgba(10,20,36,.22);
  --rule-dark-soft:rgba(10,20,36,.12);
  --rule-light:rgba(198,206,214,.34);
  --rule-light-soft:rgba(198,206,214,.16);

  --grid-line-dark:rgba(22,50,76,.07);
  --grid-line-light:rgba(198,206,214,.055);

  --font-head:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-body:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --shell:1240px;
  --pad:24px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--slate-700);
  background-color:var(--paper-100);
  background-image:
    repeating-linear-gradient(90deg,var(--grid-line-dark) 0 1px,transparent 1px 96px),
    repeating-linear-gradient(0deg,var(--grid-line-dark) 0 1px,transparent 1px 96px);
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block;}
a{color:inherit;}
button{font:inherit;color:inherit;}
ul,ol,dl,dd,figure{margin:0;padding:0;}
li{list-style:none;}
hr{border:0;border-top:1px solid var(--rule-dark);margin:28px 0;}

:focus-visible{outline:2px solid var(--amber-500);outline-offset:2px;}

/* ---------- 3. 中文排版 ---------- */
h1,h2,h3,h4{
  font-family:var(--font-head);
  font-weight:800;
  color:var(--ink-950);
  line-height:1.3;
  letter-spacing:-.01em;
  margin:0 0 .6em;
  text-align:left;
  font-stretch:condensed;
}
h1{font-size:32px;}
h2{font-size:28px;}
h3{font-size:22px;}
h4{font-size:17px;font-weight:700;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
strong{font-weight:700;color:var(--ink-950);}
small{font-size:14px;}

.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
}
.lead{font-size:17px;line-height:1.8;color:var(--ink-800);}
.muted{color:rgba(60,76,96,.72);}

/* ---------- 4. 布局工具 ---------- */
.shell{
  width:100%;
  max-width:var(--shell);
  margin-inline:auto;
  padding-inline:var(--pad);
}
.content-narrow{
  max-width:760px;
  margin-inline:auto;
  width:100%;
}
.stack > * + *{margin-top:18px;}
.stack-lg > * + *{margin-top:32px;}

.blue-grid{
  display:grid;
  grid-template-columns:repeat(12,minmax(0,1fr));
  gap:28px 24px;
}
.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-12{grid-column:span 12;}

/* ---------- 5. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:10px 16px;
  border:1px solid transparent;
  border-radius:0;
  background:none;
  font-family:var(--font-body);
  font-size:14px;
  font-weight:700;
  line-height:1.2;
  letter-spacing:.02em;
  text-decoration:none;
  cursor:pointer;
  transition:background-color 160ms var(--ease),border-color 160ms var(--ease),color 160ms var(--ease);
}
.btn-amber{
  background:var(--amber-500);
  border-color:var(--amber-500);
  color:var(--ink-950);
}
.btn-amber:hover{background:var(--cream-200);border-color:var(--cream-200);}
.btn-line{
  border-color:var(--rule-light);
  color:var(--paper-100);
}
.btn-line:hover{border-color:var(--amber-500);color:var(--cream-200);}
.btn-outline{
  border-color:var(--rule-dark);
  color:var(--ink-950);
  background:var(--paper-card);
}
.btn-outline:hover{border-color:var(--amber-500);background:var(--cream-200);}

/* ---------- 6. 标签 ---------- */
.tag{
  display:inline-block;
  padding:3px 9px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.06em;
  border:1px solid currentColor;
  line-height:1.5;
}
.tag--wine{background:var(--wine-700);color:var(--paper-100);border-color:var(--wine-700);}
.tag--indigo{background:var(--indigo-600);color:var(--paper-100);border-color:var(--indigo-600);}
.tag--amber{background:var(--amber-500);color:var(--ink-950);border-color:var(--amber-500);}
.tag--signal{background:var(--signal-500);color:#04231A;border-color:var(--signal-500);}

.mod-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin:0 0 10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--amber-500);
  text-transform:uppercase;
}

/* ---------- 7. 页头 ---------- */
.skip-link{
  position:fixed;
  left:14px;
  top:-72px;
  z-index:300;
  padding:10px 18px;
  background:var(--cream-200);
  color:var(--ink-950);
  font-size:14px;
  font-weight:700;
  text-decoration:none;
  border:1px solid var(--ink-950);
  transition:top 140ms var(--ease);
}
.skip-link:focus{top:14px;}

.site-header{
  position:relative;
  z-index:60;
  background-color:var(--ink-950);
  background-image:
    repeating-linear-gradient(90deg,var(--grid-line-light) 0 1px,transparent 1px 72px),
    repeating-linear-gradient(0deg,var(--grid-line-light) 0 1px,transparent 1px 72px);
  color:var(--paper-100);
  border-bottom:1px solid rgba(198,206,214,.22);
}

.header-upper{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:16px 28px;
  padding-top:16px;
  padding-bottom:15px;
}

.brand-block{
  display:flex;
  align-items:center;
  gap:14px;
  min-width:0;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:6px 10px;
  background:var(--amber-500);
  color:var(--ink-950);
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
}
.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.25;
  min-width:0;
}
.brand-name{
  font-family:var(--font-head);
  font-size:20px;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--paper-100);
  text-decoration:none;
}
.brand-name:hover{color:var(--cream-200);}
.brand-tagline{
  font-size:12.5px;
  color:rgba(198,206,214,.78);
  letter-spacing:.02em;
}

.header-side{
  display:flex;
  align-items:center;
  gap:18px;
  margin-left:auto;
}
.header-meta{
  display:flex;
  flex-direction:column;
  gap:2px;
  text-align:right;
}
.meta-line{
  margin:0;
  font-size:12.5px;
  color:rgba(198,206,214,.7);
}
.meta-stamp{
  margin:0;
  font-size:12.5px;
  color:var(--signal-500);
  letter-spacing:.06em;
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:9px 12px;
  background:transparent;
  border:1px solid rgba(198,206,214,.42);
  border-radius:0;
  color:var(--paper-100);
  font-size:13.5px;
  font-weight:600;
  cursor:pointer;
  transition:border-color 160ms var(--ease),color 160ms var(--ease);
}
.nav-toggle:hover{border-color:var(--amber-500);color:var(--cream-200);}
.nav-toggle-bars{
  display:inline-flex;
  flex-direction:column;
  gap:3px;
  width:16px;
}
.nav-toggle-bar{
  display:block;
  height:1.5px;
  width:100%;
  background:currentColor;
}
.nav-toggle-bar:nth-child(2){width:70%;}

.site-nav{
  background-color:var(--ink-800);
  background-image:
    repeating-linear-gradient(90deg,var(--grid-line-light) 0 1px,transparent 1px 72px);
  border-top:1px solid var(--rule-light-soft);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:20px;
}
.nav-list{
  display:flex;
  flex-wrap:wrap;
  gap:2px;
  flex:1 1 auto;
}
.nav-link{
  display:flex;
  align-items:baseline;
  gap:8px;
  padding:12px 14px;
  font-size:14.5px;
  color:rgba(245,242,234,.82);
  text-decoration:none;
  border-bottom:2px solid transparent;
  transition:background-color 160ms var(--ease),border-color 160ms var(--ease),color 160ms var(--ease);
}
.nav-link:hover{
  color:var(--paper-100);
  background:rgba(245,242,234,.06);
  border-bottom-color:rgba(226,138,27,.6);
}
.nav-num{
  font-size:11.5px;
  color:var(--amber-500);
  letter-spacing:.08em;
}
.nav-link[aria-current="page"]{
  color:var(--cream-200);
  background:rgba(226,138,27,.12);
  border-bottom-color:var(--amber-500);
}
.nav-link[aria-current="page"] .nav-num{color:var(--cream-200);}
.nav-meta{
  margin:0;
  font-size:11.5px;
  letter-spacing:.12em;
  color:rgba(198,206,214,.5);
  white-space:nowrap;
}

/* ---------- 8. 页脚 ---------- */
.site-footer{
  margin-top:0;
  background-color:var(--ink-950);
  background-image:
    repeating-linear-gradient(90deg,var(--grid-line-light) 0 1px,transparent 1px 72px),
    repeating-linear-gradient(0deg,var(--grid-line-light) 0 1px,transparent 1px 72px);
  color:rgba(245,242,234,.86);
  border-top:3px solid var(--amber-500);
}
.footer-main{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.6fr;
  gap:34px 28px;
  padding-top:40px;
  padding-bottom:40px;
}
.footer-mark{
  margin:0 0 10px;
  font-size:12.5px;
  letter-spacing:.14em;
  color:var(--amber-500);
}
.footer-lede{
  margin:0 0 12px;
  font-size:14px;
  line-height:1.7;
  color:rgba(245,242,234,.78);
}
.footer-stamp{
  margin:0;
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--signal-500);
}
.footer-col-title{
  display:flex;
  align-items:baseline;
  gap:8px;
  margin:0 0 14px;
  font-size:14.5px;
  font-weight:700;
  color:var(--paper-100);
  letter-spacing:.02em;
}
.footer-col-title .mono{
  font-size:11.5px;
  color:var(--amber-500);
}
.footer-list{
  display:grid;
  gap:8px;
}
.footer-list a{
  font-size:14px;
  color:rgba(245,242,234,.8);
  text-decoration:none;
  border-bottom:1px solid transparent;
  padding-bottom:1px;
  transition:color 160ms var(--ease),border-color 160ms var(--ease);
}
.footer-list a:hover{
  color:var(--cream-200);
  border-bottom-color:var(--amber-500);
}
.contact-list dt{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.1em;
  color:rgba(198,206,214,.6);
}
.contact-list dd{
  margin:2px 0 10px;
  font-size:13.5px;
  color:var(--paper-100);
  word-break:break-word;
}
.footer-note{
  margin:14px 0 0;
  font-size:12.5px;
  line-height:1.65;
  color:rgba(198,206,214,.65);
}
.footer-band{
  background:var(--ink-800);
  border-top:1px solid var(--rule-light-soft);
  padding:14px 0;
}
.footer-band-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:8px 24px;
  font-size:12.5px;
  color:rgba(198,206,214,.82);
}
.footer-band-inner p{margin:0;}

/* ---------- 9. 内容组件 ---------- */
.panel{
  position:relative;
  padding:22px 24px 24px;
  background:var(--paper-card);
  border:1px solid var(--rule-dark);
}
.panel--paper{background:var(--paper-100);}
.panel--ink{
  background:var(--ink-800);
  border-color:var(--rule-light);
  color:rgba(245,242,234,.9);
}
.panel--ink h2,.panel--ink h3,.panel--ink h4{color:var(--paper-100);}
.panel--indigo{
  background:var(--indigo-600);
  border-color:rgba(198,206,214,.26);
  color:rgba(245,242,234,.92);
}
.panel--indigo h2,.panel--indigo h3,.panel--indigo h4{color:var(--paper-100);}
.panel--wine{
  background:var(--wine-700);
  border-color:rgba(198,206,214,.26);
  color:rgba(245,242,234,.92);
}
.panel--wine h2,.panel--wine h3,.panel--wine h4{color:var(--paper-100);}

.band{
  background:var(--amber-500);
  color:var(--ink-950);
  border-top:1px solid rgba(10,20,36,.18);
  border-bottom:1px solid rgba(10,20,36,.18);
  padding:14px 0;
}
.band--signal{background:var(--signal-500);color:#04231A;}
.band--wine{background:var(--wine-700);color:var(--paper-100);}
.band .shell{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 24px;
}
.band p{margin:0;font-size:14.5px;font-weight:600;}

.breadcrumbs{padding:14px 0 0;}
.breadcrumbs ol{
  display:flex;
  flex-wrap:wrap;
  gap:0 8px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.04em;
  color:rgba(10,20,36,.6);
}
.breadcrumbs li{display:flex;align-items:center;}
.breadcrumbs li + li::before{
  content:"/";
  margin-right:8px;
  color:rgba(10,20,36,.32);
}
.breadcrumbs a{
  color:var(--slate-700);
  text-decoration:none;
  border-bottom:1px solid var(--rule-dark);
}
.breadcrumbs a:hover{color:var(--wine-700);border-bottom-color:var(--wine-700);}

.note{
  border-left:3px solid var(--amber-500);
  background:rgba(255,230,190,.5);
  padding:12px 16px;
  font-size:14px;
  line-height:1.75;
}
.note strong{color:var(--wine-700);}

.data-table{
  width:100%;
  border-collapse:collapse;
  font-size:14.5px;
  background:var(--paper-card);
}
.data-table th,
.data-table td{
  border:1px solid var(--rule-dark);
  padding:10px 12px;
  text-align:left;
  vertical-align:top;
}
.data-table thead th{
  background:var(--ink-800);
  color:var(--paper-100);
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
}
.data-table tbody tr:nth-child(even){background:rgba(255,230,190,.55);}
.data-table .num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

.step-list{
  counter-reset:step;
  display:grid;
  gap:16px;
}
.step-list > li{
  position:relative;
  padding-left:56px;
  padding-bottom:14px;
  border-bottom:1px solid var(--rule-dark-soft);
}
.step-list > li:last-child{border-bottom:0;padding-bottom:0;}
.step-list > li::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  position:absolute;
  left:0;
  top:1px;
  padding:2px 7px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.06em;
  color:var(--wine-700);
  border:1px solid var(--rule-dark);
  background:var(--paper-card);
}

.fig-frame{
  position:relative;
  display:block;
  overflow:hidden;
  border:1px solid var(--rule-dark);
  background-color:#E7ECF0;
  background-image:
    repeating-linear-gradient(90deg,var(--grid-line-dark) 0 1px,transparent 1px 40px),
    repeating-linear-gradient(0deg,var(--grid-line-dark) 0 1px,transparent 1px 40px);
  aspect-ratio:16 / 9;
}
.fig-frame--wide{aspect-ratio:21 / 9;}
.fig-frame--tall{aspect-ratio:4 / 5;}
.fig-frame--square{aspect-ratio:1 / 1;}
.fig-frame > img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.68) contrast(1.06);
}
.fig-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:radial-gradient(rgba(10,20,36,.06) 1px,transparent 1px);
  background-size:3px 3px;
}
.fig-cap{
  margin-top:8px;
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.03em;
  color:rgba(10,20,36,.6);
}

.index-list{
  display:grid;
  gap:0;
  border-top:1px solid var(--rule-dark);
}
.index-list a{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding:9px 0;
  font-size:14px;
  text-decoration:none;
  color:var(--slate-700);
  border-bottom:1px solid var(--rule-dark-soft);
  transition:color 160ms var(--ease),padding-left 160ms var(--ease);
}
.index-list a:hover{color:var(--wine-700);padding-left:6px;}
.index-list .mono{font-size:11.5px;color:var(--amber-500);}

.site-main{display:block;}
.section{padding:44px 0;}
.section--tight{padding:28px 0;}
.section--deep{
  background-color:var(--ink-950);
  color:rgba(245,242,234,.88);
}
.section--deep h2,.section--deep h3{color:var(--paper-100);}

/* ---------- 10. 动效 ---------- */
html.js [data-band]{
  clip-path:inset(0 100% 0 0);
  will-change:clip-path;
}
html.js [data-band].is-visible{
  clip-path:inset(0 0 0 0);
  transition:clip-path 240ms var(--ease);
}
html.js .reveal{
  opacity:0;
  transform:translateY(8px);
}
html.js .reveal.is-visible{
  opacity:1;
  transform:none;
  transition:opacity 160ms var(--ease),transform 160ms var(--ease);
}

/* ---------- 11. 响应式 ---------- */
@media (max-width:1100px){
  .footer-main{grid-template-columns:1.4fr 1fr 1fr;}
  .footer-col--contact{grid-column:span 3;}
}
@media (max-width:900px){
  :root{--pad:20px;}
  .nav-toggle{display:inline-flex;}
  .header-meta{display:none;}
  .header-side{gap:12px;}

  .site-nav{display:none;}
  .site-nav[data-open="true"]{
    display:block;
    animation:navDrop 160ms var(--ease) both;
  }
  .nav-inner{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding-top:4px;
    padding-bottom:12px;
  }
  .nav-list{flex-direction:column;gap:0;}
  .nav-item{border-bottom:1px solid var(--rule-light-soft);}
  .nav-link{
    padding:14px 2px;
    border-bottom:0;
    border-left:3px solid transparent;
  }
  .nav-link:hover{background:rgba(245,242,234,.05);border-bottom-color:transparent;}
  .nav-link[aria-current="page"]{
    border-left-color:var(--amber-500);
    border-bottom-color:transparent;
    padding-left:12px;
  }
  .nav-meta{display:none;}

  .footer-main{grid-template-columns:1fr 1fr;gap:28px 24px;}
  .footer-brand{grid-column:span 2;}
  .footer-col--contact{grid-column:span 2;}

  .blue-grid{gap:22px 16px;}
  .col-3,.col-4,.col-5,.col-7,.col-8,.col-9{grid-column:span 12;}
}
@media (max-width:900px) and (min-width:641px){
  .col-6{grid-column:span 6;}
}
@media (max-width:640px){
  :root{--pad:16px;}
  h1{font-size:26px;}
  h2{font-size:22px;}
  h3{font-size:19px;}
  .col-6{grid-column:span 12;}
  .brand-name{font-size:17px;}
  .brand-tagline{font-size:11.5px;}
  .header-upper{padding-top:14px;padding-bottom:13px;gap:12px;}
  .header-side .btn-amber{padding:9px 12px;font-size:13px;}
  .nav-toggle-label{display:none;}
  .footer-main{grid-template-columns:1fr;gap:24px;}
  .footer-brand,.footer-col--contact{grid-column:span 1;}
  .section{padding:32px 0;}
  .panel{padding:18px 16px 20px;}
  .data-table{font-size:13.5px;}
  .data-table th,.data-table td{padding:8px 9px;}
  .step-list > li{padding-left:48px;}
}

@keyframes navDrop{
  from{opacity:0;transform:translateY(-6px);}
  to{opacity:1;transform:none;}
}

/* ---------- 12. 减少动态 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  html.js [data-band],
  html.js [data-band].is-visible{
    clip-path:none !important;
  }
  html.js .reveal,
  html.js .reveal.is-visible{
    opacity:1 !important;
    transform:none !important;
  }
}