/* =========================================================
   胜天国际 · 口径内容主站
   共享样式 /assets/site.css
   ========================================================= */

/* ---------- 1 变量 ---------- */
:root{
  --navy:#0E1E33;
  --navy-deep:#071324;
  --copper:#C1873C;
  --copper-hi:#D79B4C;
  --seal:#A6252B;
  --teal:#3E8F8A;
  --stone:#4A5259;
  --cool:#8B959C;
  --warm:#F2EDE4;
  --moss:#5C6B4A;
  --clay:#A45A3E;

  --ink:#F2EDE4;
  --ink-soft:#CBD4DB;
  --ink-mute:#8B959C;

  --line:rgba(242,237,228,.14);
  --line-soft:rgba(242,237,228,.08);
  --line-strong:rgba(242,237,228,.30);
  --copper-line:rgba(193,135,60,.42);

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

  --shell:1440px;
  --pad-inline:clamp(18px,4vw,56px);
  --gap:24px;

  --step-display:clamp(56px,9vw,128px);
  --step-h1:clamp(32px,4.2vw,56px);
  --step-h2:clamp(22px,2.4vw,32px);
  --step-h3:clamp(18px,1.6vw,22px);
  --step-body:16.5px;
  --step-note:12.5px;
}

/* ---------- 2 reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px}
body{
  margin:0;
  min-height:100%;
  background-color:var(--navy);
  background-image:
    linear-gradient(rgba(242,237,228,.040) 1px,transparent 1px),
    linear-gradient(90deg,rgba(242,237,228,.040) 1px,transparent 1px);
  background-size:64px 64px,64px 64px;
  background-attachment:fixed;
  color:var(--ink);
  font-family:var(--font-body);
  font-size:var(--step-body);
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:900;line-height:1.18;letter-spacing:-.03em}
ul,ol{margin:0;padding:0}
img,picture,svg,video{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
table{border-collapse:collapse;width:100%}
hr{border:0;border-top:1px solid var(--line);margin:0}
::selection{background:var(--copper);color:var(--navy-deep)}

/* ---------- 3 焦点 ---------- */
:focus-visible{outline:2px solid var(--copper);outline-offset:2px}
.site-nav__list a:focus-visible{outline:1px solid var(--seal);outline-offset:-1px}
.btn:focus-visible{outline:2px solid var(--copper-hi);outline-offset:3px}
.tab:focus-visible{outline:1px solid var(--seal);outline-offset:-2px}

/* ---------- 4 跳转链接 ---------- */
.skip-link{
  position:fixed;top:-100px;left:12px;z-index:200;
  display:inline-block;padding:10px 18px;
  background:var(--copper);color:var(--navy-deep);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;
  transition:top .15s ease;
}
.skip-link:focus{top:12px}

/* ---------- 5 容器与栅格 ---------- */
.container,
.shell{
  width:100%;max-width:var(--shell);
  margin-inline:auto;padding-inline:var(--pad-inline);
}
.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:var(--gap)}
.grid > *{grid-column:span 12}
@media (min-width:900px){
  .span-3{grid-column:span 3}
  .span-4{grid-column:span 4}
  .span-5{grid-column:span 5}
  .span-6{grid-column:span 6}
  .span-7{grid-column:span 7}
  .span-8{grid-column:span 8}
  .span-9{grid-column:span 9}
  .span-12{grid-column:span 12}
}

/* ---------- 6 中文排版与文本层级 ---------- */
.eyebrow{
  display:inline-block;
  font-family:var(--font-mono);font-size:12px;line-height:1.4;
  letter-spacing:.18em;text-transform:uppercase;
  color:var(--copper);
}
.section-head{display:grid;gap:8px;margin-bottom:clamp(20px,3vw,36px)}
.section-head__title{font-size:var(--step-h2)}
.section-head__note{font-size:14px;color:var(--ink-soft);max-width:60ch}
.meta-note{
  font-size:var(--step-note);font-style:italic;letter-spacing:.02em;
  color:var(--ink-mute);
}
.lead{font-size:clamp(17px,1.5vw,20px);line-height:1.7;color:var(--ink-soft);max-width:64ch}

/* ---------- 7 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 18px;
  border:1px solid transparent;border-radius:0;
  background:transparent;color:var(--ink);
  font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;
  cursor:pointer;white-space:nowrap;
  transition:background-color .15s ease,color .15s ease,border-color .15s ease;
}
.btn--copper{background:var(--copper);color:var(--navy-deep);font-weight:700;border-color:var(--copper)}
.btn--copper:hover{background:var(--copper-hi);border-color:var(--copper-hi)}
.btn--ghost{border-color:var(--line-strong);color:var(--ink)}
.btn--ghost:hover{border-color:var(--copper);color:var(--copper)}

/* ---------- 8 页头 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,var(--navy-deep) 0%,#0A1728 100%);
  border-bottom:1px solid var(--line);
  color:var(--ink);
}
.site-header[data-scrolled="true"]{border-bottom-color:var(--copper-line)}
.site-header__grid{
  display:grid;gap:0 24px;align-items:center;
  grid-template-columns:1fr auto;
  grid-template-areas:
    "brand toggle"
    "nav nav"
    "actions actions";
  max-width:var(--shell);margin-inline:auto;
  padding:10px var(--pad-inline) 12px;
  min-height:64px;
}
.brand{grid-area:brand;display:flex;flex-direction:column;gap:2px;min-width:0}
.brand__link{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px}
.brand__name{
  font-family:var(--font-display);font-weight:900;font-size:19px;
  letter-spacing:-.02em;color:var(--ink);
}
.brand__line{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  color:var(--copper);
}
.brand__meta{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.04em;
  color:var(--ink-mute);
}

.nav-toggle{
  grid-area:toggle;justify-self:end;
  display:inline-flex;align-items:center;gap:10px;
  min-height:44px;padding:0 12px;
  background:transparent;border:1px solid var(--line-strong);
  color:var(--ink);cursor:pointer;
  font-family:var(--font-mono);font-size:12px;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(--copper);
}
.nav-toggle__bars::before{top:0}
.nav-toggle__bars::after{bottom:0}
.nav-toggle[aria-expanded="true"]{border-color:var(--copper)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before{top:4px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after{bottom:5px;transform:rotate(-45deg)}

.site-nav{
  grid-area:nav;
  display:none;flex-direction:column;
  margin-top:8px;padding:6px 0 4px;
  border-top:1px solid var(--line-soft);
}
.site-nav[data-open]{display:flex}
.site-nav__list{display:flex;flex-direction:column;list-style:none}
.site-nav__list li{min-width:0}
.site-nav__list a{
  position:relative;display:block;
  padding:12px 0;
  font-size:16px;letter-spacing:.02em;color:var(--ink-soft);
  border-bottom:1px solid var(--line-soft);
  transition:color .15s ease;
}
.site-nav__list a:hover{color:var(--ink)}
.site-nav__list a[aria-current="page"]{color:var(--ink);font-weight:700}
.site-nav__list a[aria-current="page"]::after{
  content:"";position:absolute;left:0;bottom:-1px;
  width:30px;height:2px;background:var(--seal);
}
.site-nav__status{
  padding:12px 0 6px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;
  color:var(--ink-mute);
}

.cmd-actions{
  grid-area:actions;
  display:flex;gap:8px;align-items:center;
  padding-top:10px;overflow-x:auto;
  border-top:1px solid var(--line-soft);
}
.cmd-actions .btn{flex:0 0 auto}

.scroll-rail{
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--line-soft);overflow:hidden;
}
.scroll-rail__fill{
  display:block;width:100%;height:100%;
  background:linear-gradient(90deg,var(--teal),var(--copper));
  transform:scaleX(0);transform-origin:0 50%;
}

@media (min-width:1025px){
  .site-header__grid{
    grid-template-columns:minmax(190px,auto) minmax(0,1fr) minmax(280px,auto);
    grid-template-areas:"brand nav actions";
    gap:0 28px;
    padding:0 var(--pad-inline);
    min-height:70px;
  }
  .nav-toggle{display:none}
  .site-nav{
    display:flex;flex-direction:row;align-items:center;gap:20px;
    margin-top:0;padding:0;border-top:0;
  }
  .site-nav__list{flex-direction:row;flex-wrap:wrap;gap:2px}
  .site-nav__list a{
    padding:10px 12px;font-size:14px;
    border-bottom:0;
  }
  .site-nav__list a[aria-current="page"]::after{
    left:12px;right:12px;width:auto;bottom:2px;
  }
  .site-nav__status{
    padding:0 0 0 16px;border-left:1px solid var(--line);
  }
  .cmd-actions{
    padding-top:0;border-top:0;overflow:visible;justify-content:flex-end;
  }
}

@media (min-width:1100px){
  .cmd-actions[data-floating="true"]{
    position:fixed;right:16px;top:50%;transform:translateY(-50%);
    z-index:70;
    flex-direction:column;align-items:stretch;gap:8px;
    padding:10px;
    background:rgba(7,19,36,.94);
    border:1px solid var(--copper-line);
    max-width:230px;
  }
  .cmd-actions[data-floating="true"] .btn{width:100%}
}

/* ---------- 9 横贯条与区块 ---------- */
.band{
  position:relative;
  width:100%;
  padding:clamp(28px,4.5vw,64px) 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:var(--navy-deep);
}
.band--light{
  background:var(--warm);color:#16233A;
  border-top-color:rgba(22,35,58,.18);
  border-bottom-color:rgba(22,35,58,.18);
}
.band--light .stat__label,
.band--light .meta-note{color:#5A6470}
.band__inner{
  max-width:var(--shell);margin-inline:auto;padding-inline:var(--pad-inline);
}

/* ---------- 10 组件 ---------- */
.panel{
  border:1px solid var(--line);
  background:rgba(7,19,36,.55);
  padding:clamp(18px,2.4vw,26px);
}
.panel--flat{border:0;border-left:1px solid var(--copper-line);background:transparent;padding-left:20px}

.stat{display:grid;gap:4px}
.stat__value{
  font-family:var(--font-mono);font-weight:700;
  font-size:clamp(30px,4vw,54px);line-height:1;
  letter-spacing:-.02em;color:var(--copper);
}
.stat__label{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  color:var(--ink-mute);
}
.band--light .stat__value{color:#8A5A19}

.stamp{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 8px;
  border:1px solid var(--seal);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  color:#E3B9BB;background:rgba(166,37,43,.16);
}
.stamp--seal{border-color:var(--seal);color:#EFC5C7;background:rgba(166,37,43,.22)}
.stamp--teal{border-color:var(--teal);color:#A8D6D3;background:rgba(62,143,138,.16)}
.stamp--moss{border-color:var(--moss);color:#C3CFB3;background:rgba(92,107,74,.20)}
.stamp--clay{border-color:var(--clay);color:#E0BCA9;background:rgba(164,90,62,.18)}

.tabs{display:block}
.tablist{
  display:flex;flex-wrap:wrap;gap:0;
  border-bottom:1px solid var(--line);
}
.tab{
  position:relative;
  min-height:44px;padding:0 16px;
  background:transparent;border:1px solid transparent;border-bottom:0;
  color:var(--ink-soft);cursor:pointer;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.06em;
}
.tab:hover{color:var(--ink)}
.tab[aria-selected="true"]{
  color:var(--ink);
  border-color:var(--line);
  background:rgba(242,237,228,.05);
}
.tab[aria-selected="true"]::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--seal);
}
.tabpanel{padding-top:clamp(16px,2vw,26px);animation:tab-in .12s ease both}
@keyframes tab-in{from{opacity:0;transform:translateY(2px)}to{opacity:1;transform:none}}

.breadcrumb{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;
  color:var(--ink-mute);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:var(--stone)}
.breadcrumb a{color:var(--ink-soft);border-bottom:1px solid transparent}
.breadcrumb a:hover{color:var(--copper);border-bottom-color:var(--copper)}
.breadcrumb [aria-current="page"]{color:var(--ink)}

.figure-frame{
  position:relative;display:block;width:100%;overflow:hidden;
  background:#0B1A2D;
  border:1px solid var(--line);
}
.figure-frame > img,
.figure-frame > picture > img{
  width:100%;height:100%;object-fit:cover;
}
.figure-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(242,237,228,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(242,237,228,.07) 1px,transparent 1px);
  background-size:32px 32px;
  mix-blend-mode:overlay;
}
.figure-frame--16x9{aspect-ratio:16/9}
.figure-frame--4x3{aspect-ratio:4/3}
.figure-frame--1x1{aspect-ratio:1/1}
.figure-frame--tall{aspect-ratio:3/4}
.figure-frame__caption{
  display:block;
  margin-top:10px;
  font-size:var(--step-note);font-style:italic;color:var(--ink-mute);
}

.table-scroll{width:100%;overflow-x:auto;border:1px solid var(--line)}
.data-table{min-width:560px;font-size:14.5px}
.data-table caption{
  caption-side:top;text-align:left;padding:12px 14px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  color:var(--copper);
}
.data-table th,.data-table td{
  padding:8px 14px;height:38px;
  border-bottom:1px solid var(--line-soft);
  text-align:left;vertical-align:middle;
}
.data-table th{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  color:var(--ink-mute);font-weight:400;
  background:rgba(242,237,228,.04);
}
.data-table tbody tr:hover{background:rgba(193,135,60,.08)}
.data-table .num{font-family:var(--font-mono);color:var(--copper)}

/* ---------- 11 显现 ---------- */
[data-js="on"] [data-reveal]{opacity:0;transform:translateY(10px)}
[data-js="on"] [data-reveal][data-visible]{
  opacity:1;transform:none;
  transition:opacity .34s ease,transform .34s ease;
}

/* ---------- 12 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;
  background:var(--navy-deep);
  border-top:1px solid var(--line-strong);
  color:var(--ink);
}
.site-footer__inner{
  max-width:var(--shell);margin-inline:auto;
  padding:clamp(36px,5vw,72px) var(--pad-inline) 26px;
}
.footer-head{
  display:flex;flex-wrap:wrap;gap:8px 24px;
  align-items:baseline;justify-content:space-between;
}
.footer-head__brand{
  font-family:var(--font-display);font-weight:900;font-size:clamp(20px,2.2vw,26px);
  letter-spacing:-.03em;
}
.footer-head__brand span{
  display:inline-block;margin-left:10px;
  font-family:var(--font-mono);font-weight:400;font-size:11.5px;
  letter-spacing:.1em;color:var(--copper);
}
.footer-head__meta{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--ink-mute);
}
.footer-bands{
  display:grid;gap:30px 24px;
  grid-template-columns:1fr;
  margin-top:28px;padding-top:28px;
  border-top:1px solid var(--line);
}
.footer-col{min-width:0}
.footer-col__title{
  margin-bottom:12px;
  font-family:var(--font-mono);font-size:12px;font-weight:400;
  letter-spacing:.16em;color:var(--copper);
}
.footer-list{list-style:none;font-size:14.5px;line-height:1.95;color:var(--ink-soft)}
.footer-list li{border-bottom:1px solid var(--line-soft);padding:6px 0}
.footer-list li:last-child{border-bottom:0}
.footer-list--links a{
  display:inline-block;color:var(--ink);
  border-bottom:1px solid transparent;
  transition:color .15s ease,border-color .15s ease;
}
.footer-list--links a:hover{color:var(--copper);border-bottom-color:var(--copper)}
.footer-list--data{font-family:var(--font-mono);font-size:13px;letter-spacing:.01em}
.footer-list__key{
  display:inline-block;min-width:42px;margin-right:8px;
  font-size:11px;letter-spacing:.1em;color:var(--cool);
}
.footer-note{
  max-width:92ch;margin-top:28px;padding-left:16px;
  border-left:2px solid var(--copper-line);
  font-size:var(--step-note);font-style:italic;line-height:1.9;color:var(--ink-mute);
}
.footer-legal{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;align-items:center;
  margin-top:26px;padding-top:16px;
  border-top:1px solid var(--line);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--cool);
}
.footer-legal__links{display:flex;flex-wrap:wrap;gap:18px}
.footer-legal__links a{color:var(--cool);border-bottom:1px solid transparent}
.footer-legal__links a:hover{color:var(--copper);border-bottom-color:var(--copper)}

@media (min-width:640px){
  .footer-bands{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (min-width:1024px){
  .footer-bands{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
}

/* ---------- 13 减弱动效 ---------- */
@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-js="on"] [data-reveal],
  [data-js="on"] [data-reveal][data-visible]{opacity:1;transform:none}
  .scroll-rail{display:none}
  .cmd-actions[data-floating="true"]{position:static;transform:none;max-width:none}
}