/* ============================================================
   亚富看台 · 共享样式 /assets/site.css
   暖纸底 × 深空蓝指挥带 × 竞技橙入口 × 电光青数据
   ============================================================ */

:root{
  --paper:#F4EEE4;
  --paper-soft:#FBF7F0;
  --ink:#0B1B33;
  --ink-2:#16294A;
  --orange:#FF5A1F;
  --orange-soft:#FFB08A;
  --cyan:#2FE3C8;
  --cyan-deep:#0B6F63;
  --orange-deep:#B9370E;
  --text:#12100E;
  --muted:#6B7A90;
  --line:#C9D4E2;
  --warm-white:#FFFDF8;
  --heading:#0B1B33;

  --radius-lg:28px;
  --radius-md:18px;
  --radius-sm:12px;
  --radius-pill:999px;

  --container:1240px;
  --gutter:clamp(18px, 4.5vw, 56px);

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular","Cascadia Mono",Menlo,Consolas,"Courier New",monospace;
  --font-serif-label:"Source Han Serif SC","Noto Serif SC","Songti SC","SimSun",serif;

  --shadow-card:0 18px 48px rgba(11,27,51,.10);
  --shadow-pop:0 26px 64px rgba(11,27,51,.24);
  --ease:cubic-bezier(.32,.72,.28,1);
}

/* ---------- Reset ---------- */
*,
*::before,
*::after{box-sizing:border-box;}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:150px;
}

body,h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
img,svg,video{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;}
table{border-collapse:collapse;}

:focus-visible{
  outline:3px solid var(--orange);
  outline-offset:3px;
  border-radius:8px;
}
.site-header :focus-visible,
.site-footer :focus-visible{
  outline-color:var(--cyan);
}

/* ---------- 基础排版 ---------- */
body{
  min-height:100vh;
  display:flex;
  flex-direction:column;
  background-color:var(--paper);
  background-image:radial-gradient(rgba(11,27,51,.055) 1px, transparent 1px);
  background-size:26px 26px;
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  font-weight:400;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

#main-content{
  display:block;
  flex:1 0 auto;
}

h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  font-weight:900;
  line-height:1.14;
  letter-spacing:-.02em;
  color:var(--heading);
  text-wrap:balance;
}

p{text-wrap:pretty;}

::selection{
  background:var(--orange);
  color:var(--warm-white);
}

.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}

/* ---------- 布局容器 ---------- */
.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.section{
  padding-block:clamp(40px, 6vw, 88px);
}

.section--tight{
  padding-block:clamp(26px, 3.6vw, 52px);
}

.grid{
  display:grid;
  gap:clamp(16px, 2.2vw, 28px);
}

.grid--split{
  grid-template-columns:minmax(0, 1fr);
}

.grid--auto{
  grid-template-columns:repeat(auto-fit, minmax(min(100%, 262px), 1fr));
}

@media (min-width:1024px){
  .grid--split{
    grid-template-columns:minmax(0, 1.5fr) minmax(0, 1fr);
    align-items:start;
  }
}

/* ---------- 标题与标签 ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-serif-label);
  font-size:13px;
  font-weight:500;
  letter-spacing:.12em;
  color:var(--orange-deep);
}

.eyebrow::before{
  content:"";
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--orange);
}

.section-title{
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(26px, 3.4vw, 46px);
  line-height:1.08;
  letter-spacing:-.025em;
  color:var(--heading);
}

.coord{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
}

.coord::before{
  content:"";
  width:16px;
  height:2px;
  border-radius:2px;
  background:var(--orange);
}

.divider{
  height:1px;
  border:0;
  margin:0;
  background:var(--line);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 24px;
  border:1px solid transparent;
  border-radius:var(--radius-pill);
  font-family:var(--font-body);
  font-size:15px;
  font-weight:700;
  line-height:1;
  letter-spacing:.01em;
  cursor:pointer;
  transition:transform .18s var(--ease), background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.btn--primary{
  background:var(--orange);
  color:var(--warm-white);
  box-shadow:0 12px 28px rgba(255,90,31,.30);
}

.btn--primary:hover{
  background:#FF7038;
  transform:translateY(-2px);
  box-shadow:0 16px 34px rgba(255,90,31,.36);
}

.btn--ghost{
  background:transparent;
  color:var(--ink);
  border-color:var(--line);
}

.btn--ghost:hover{
  border-color:var(--ink);
  background:rgba(11,27,51,.05);
}

.btn--onink{
  background:transparent;
  color:var(--warm-white);
  border-color:rgba(201,212,226,.45);
}

.btn--onink:hover{
  border-color:var(--cyan);
  color:var(--cyan);
}

.btn--sm{
  padding:10px 18px;
  font-size:13.5px;
}

/* ---------- 胶囊与面板 ---------- */
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  background:var(--paper-soft);
  color:var(--ink);
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
  line-height:1.5;
}

.pill--live{
  background:var(--orange);
  border-color:transparent;
  color:var(--warm-white);
}

.pill--data{
  background:rgba(47,227,200,.18);
  border-color:rgba(47,227,200,.55);
  color:var(--cyan-deep);
}

.surface{
  background:var(--paper-soft);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:clamp(20px, 2.6vw, 34px);
  box-shadow:var(--shadow-card);
}

.surface--ink{
  background:var(--ink);
  border-color:rgba(201,212,226,.22);
  color:rgba(255,253,248,.86);
  box-shadow:var(--shadow-pop);
}

.surface--ink h2,
.surface--ink h3,
.surface--ink h4{
  color:var(--warm-white);
}

/* ---------- 数据 ---------- */
.stat{
  display:flex;
  flex-direction:column;
  gap:6px;
}

.stat__num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  font-size:clamp(40px, 6vw, 88px);
  line-height:.94;
  letter-spacing:-.035em;
  color:var(--ink);
}

.stat__label{
  font-family:var(--font-serif-label);
  font-size:12.5px;
  letter-spacing:.1em;
  color:var(--muted);
}

.surface--ink .stat__num{color:var(--cyan);}
.surface--ink .stat__label{color:rgba(255,253,248,.6);}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  font-family:var(--font-serif-label);
  font-size:12.5px;
  letter-spacing:.08em;
  color:var(--muted);
}

.breadcrumb__list{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}

.breadcrumb__list > li + li::before{
  content:"/";
  margin-right:8px;
  color:var(--line);
}

.breadcrumb__link{
  color:var(--orange-deep);
}

.breadcrumb__link:hover{
  text-decoration:underline;
  text-underline-offset:3px;
}

.breadcrumb__current{
  color:var(--ink);
  font-weight:500;
}

/* ---------- 长文容器 ---------- */
.prose{
  max-width:68ch;
  font-size:clamp(16px, 1.05vw, 17.5px);
  line-height:1.8;
  color:var(--text);
}

.prose p + p{margin-top:1em;}

.prose h2{
  font-size:clamp(22px, 2.6vw, 30px);
  margin-top:1.8em;
  margin-bottom:.6em;
}

.prose h3{
  font-size:clamp(18px, 2vw, 22px);
  margin-top:1.6em;
  margin-bottom:.5em;
}

.prose ul,
.prose ol{
  margin-top:.8em;
}

.prose li{
  position:relative;
  padding-left:22px;
  margin-top:.45em;
}

.prose li::before{
  content:"";
  position:absolute;
  left:0;
  top:.7em;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--orange);
}

.prose a{
  color:var(--orange-deep);
  border-bottom:1px solid rgba(185,55,14,.35);
}

.prose a:hover{border-bottom-color:var(--orange-deep);}

.prose strong{
  font-weight:700;
  color:var(--ink);
}

/* ---------- 图片容器（页面阶段放置实拍图） ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  display:grid;
  place-items:end start;
  aspect-ratio:16 / 9;
  border:1px solid rgba(201,212,226,.28);
  border-radius:var(--radius-lg);
  background:linear-gradient(160deg, #1D3557 0%, #0B1B33 58%, #16294A 100%);
  isolation:isolate;
}

.media-frame::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:
    repeating-linear-gradient(115deg, rgba(47,227,200,.18) 0 1px, transparent 1px 22px),
    radial-gradient(70% 70% at 22% 16%, rgba(255,90,31,.42), transparent 62%);
  opacity:.9;
}

.media-frame > img,
.media-frame > video{
  position:absolute;
  inset:0;
  z-index:-1;
  width:100%;
  height:100%;
  object-fit:cover;
}

.media-frame--wide{aspect-ratio:21 / 9;}
.media-frame--tall{aspect-ratio:4 / 5;}

.media-frame__caption{
  position:relative;
  z-index:1;
  margin:clamp(12px, 2vw, 20px);
  padding:6px 14px;
  border-radius:var(--radius-pill);
  background:rgba(11,27,51,.74);
  color:var(--warm-white);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
}

/* ---------- 显现（由 JS 添加 .reveal） ---------- */
.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .6s var(--ease), transform .6s var(--ease);
  will-change:opacity, transform;
}

.reveal.is-revealed{
  opacity:1;
  transform:none;
}

/* ============================================================
   页头
   ============================================================ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--ink);
  color:var(--warm-white);
  border-bottom:1px solid rgba(201,212,226,.20);
}

.skip-link{
  position:fixed;
  top:-140px;
  left:clamp(12px, 3vw, 32px);
  z-index:200;
  padding:11px 20px;
  border-radius:0 0 var(--radius-md) var(--radius-md);
  background:var(--orange);
  color:var(--warm-white);
  font-weight:700;
  font-size:14px;
  box-shadow:0 12px 28px rgba(255,90,31,.4);
  transition:top .2s var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible{
  top:0;
  outline-offset:-3px;
}

/* 索引带 */
.site-header__rail{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  max-height:54px;
  padding:9px var(--gutter);
  overflow:hidden;
  background:var(--ink-2);
  border-bottom:1px solid rgba(201,212,226,.14);
  color:rgba(255,253,248,.62);
  transition:max-height .28s var(--ease), padding .28s var(--ease), opacity .22s var(--ease);
}

.site-header[data-condensed] .site-header__rail{
  max-height:0;
  padding-block:0;
  opacity:0;
  border-bottom-color:transparent;
}

.rail-coord{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
}

.rail-coord__label{
  color:var(--cyan);
  font-weight:700;
}

.rail-coord__value{
  font-size:12px;
  font-weight:700;
  color:var(--warm-white);
}

.rail-coord__note{
  color:rgba(255,253,248,.48);
  white-space:nowrap;
}

.rail-status{
  display:flex;
  align-items:center;
  gap:9px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:rgba(255,253,248,.6);
  white-space:nowrap;
}

.rail-status__dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 4px rgba(47,227,200,.18);
  animation:ap-pulse 2.6s ease-in-out infinite;
}

@keyframes ap-pulse{
  0%,100%{box-shadow:0 0 0 4px rgba(47,227,200,.18);}
  50%{box-shadow:0 0 0 8px rgba(47,227,200,.05);}
}

/* 主条 */
.site-header__bar{
  display:flex;
  align-items:center;
  gap:20px;
  padding-block:clamp(12px, 1.6vw, 18px);
}

.brand-lockup{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  color:inherit;
}

.brand-lockup__mark{
  display:grid;
  place-items:center;
  width:44px;
  height:44px;
  border-radius:14px;
  background:linear-gradient(150deg, var(--orange), #FF8A4D);
  color:var(--warm-white);
  font-family:var(--font-mono);
  font-size:15px;
  font-weight:700;
  letter-spacing:.06em;
  box-shadow:0 8px 20px rgba(255,90,31,.34);
}

.brand-lockup__text{
  display:flex;
  flex-direction:column;
  gap:2px;
  line-height:1.1;
}

.brand-lockup__name{
  font-family:var(--font-display);
  font-size:19px;
  font-weight:900;
  letter-spacing:.02em;
  color:var(--warm-white);
}

.brand-lockup__sub{
  font-family:var(--font-serif-label);
  font-size:11px;
  font-weight:500;
  letter-spacing:.16em;
  color:var(--cyan);
}

.site-header__nav-wrap{
  display:flex;
  align-items:center;
  gap:18px;
  margin-left:auto;
}

.site-nav{min-width:0;}

.site-nav__list{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:4px;
}

.nav-link{
  display:inline-block;
  padding:9px 14px;
  border-radius:var(--radius-pill);
  color:rgba(255,253,248,.78);
  font-family:var(--font-body);
  font-size:14px;
  font-weight:700;
  letter-spacing:.01em;
  line-height:1.4;
  transition:color .18s var(--ease), background-color .18s var(--ease);
}

.nav-link:hover{
  color:var(--warm-white);
  background:rgba(255,253,248,.09);
}

.nav-link[aria-current="page"]{
  background:var(--cyan);
  color:var(--ink);
  box-shadow:0 6px 18px rgba(47,227,200,.28);
}

.site-header__actions{
  display:flex;
  align-items:center;
  gap:12px;
}

.header-cta{white-space:nowrap;}

/* 移动菜单按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  margin-left:auto;
  padding:9px 16px 9px 13px;
  border:1px solid rgba(201,212,226,.38);
  border-radius:var(--radius-pill);
  background:rgba(22,41,74,.72);
  color:var(--warm-white);
  font-family:var(--font-body);
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  cursor:pointer;
  transition:border-color .18s var(--ease), background-color .18s var(--ease);
}

.nav-toggle:hover{
  border-color:var(--cyan);
  background:rgba(47,227,200,.12);
}

.nav-toggle__bars{
  display:flex;
  flex-direction:column;
  gap:4px;
  width:18px;
}

.nav-toggle__bars span{
  display:block;
  height:2px;
  border-radius:2px;
  background:currentColor;
  transition:transform .22s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:first-child{
  transform:translateY(3px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:last-child{
  transform:translateY(-3px) rotate(-45deg);
}

.nav-toggle__label{line-height:1;}

/* 滚动进度 */
.site-header__progress{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:3px;
  overflow:hidden;
  background:rgba(255,253,248,.08);
}

.site-header__progress-bar{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg, var(--cyan), var(--orange));
  transition:transform .12s linear;
}

/* ---------- 页头响应式 ---------- */
@media (max-width:820px){
  .rail-coord__note{display:none;}
  .rail-status{display:none;}
}

@media (max-width:959px){
  .site-header{position:sticky;}

  .site-header__nav-wrap{
    position:absolute;
    top:100%;
    left:var(--gutter);
    right:var(--gutter);
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:10px;
    margin-left:0;
    padding:16px;
    background:var(--ink-2);
    border:1px solid rgba(201,212,226,.22);
    border-radius:var(--radius-lg);
    box-shadow:0 26px 64px rgba(8,18,34,.55);
  }

  .site-header[data-open] .site-header__nav-wrap{
    display:flex;
  }

  .site-nav{width:100%;}

  .site-nav__list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    width:100%;
  }

  .nav-link{
    display:block;
    padding:12px 14px;
    border-radius:14px;
    font-size:15px;
  }

  .site-header__actions{
    width:100%;
    padding-top:8px;
    border-top:1px dashed rgba(201,212,226,.24);
  }

  .header-cta{
    width:100%;
    padding-block:12px;
    font-size:14px;
  }

  .nav-toggle{display:inline-flex;}
}

@media (max-width:420px){
  .brand-lockup__mark{width:38px;height:38px;border-radius:12px;font-size:13px;}
  .brand-lockup__name{font-size:17px;}
  .brand-lockup__sub{font-size:10px;letter-spacing:.12em;}
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  position:relative;
  margin-top:clamp(48px, 7vw, 96px);
  overflow:hidden;
  background:var(--ink);
  color:rgba(255,253,248,.78);
  border-top:4px solid var(--orange);
}

.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(80% 62% at 88% 0%, rgba(47,227,200,.16), transparent 62%),
    repeating-linear-gradient(0deg, rgba(201,212,226,.09) 0 1px, transparent 1px 58px);
  opacity:.7;
}

.site-footer__inner{
  position:relative;
  z-index:1;
  padding-block:clamp(40px, 5vw, 68px) clamp(20px, 3vw, 30px);
}

.footer-lead__line{
  max-width:22ch;
  font-family:var(--font-display);
  font-weight:900;
  font-size:clamp(26px, 4.4vw, 52px);
  line-height:1.1;
  letter-spacing:-.025em;
  color:var(--warm-white);
}

.footer-lead__summary{
  max-width:56ch;
  margin-top:18px;
  font-size:15.5px;
  line-height:1.85;
  color:rgba(255,253,248,.66);
}

.footer-grid{
  display:grid;
  grid-template-columns:minmax(0, 1fr);
  gap:clamp(24px, 4vw, 48px);
  margin-top:clamp(32px, 4vw, 52px);
  padding-top:clamp(24px, 3vw, 38px);
  border-top:1px solid rgba(201,212,226,.18);
}

@media (min-width:720px){
  .footer-grid{grid-template-columns:repeat(3, minmax(0, 1fr));}
}

.footer-col__heading{
  display:flex;
  align-items:center;
  gap:9px;
  margin-bottom:16px;
  font-family:var(--font-serif-label);
  font-size:12px;
  font-weight:500;
  letter-spacing:.18em;
  color:var(--cyan);
}

.footer-col__heading::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--orange);
}

.footer-col__list{
  display:grid;
  gap:11px;
}

.footer-col__link{
  display:inline-block;
  font-size:15px;
  color:rgba(255,253,248,.78);
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease), border-color .18s var(--ease);
}

.footer-col__link:hover{
  color:var(--warm-white);
  border-bottom-color:var(--orange);
}

.footer-col__item{
  display:flex;
  flex-direction:column;
  gap:3px;
  line-height:1.7;
}

.footer-col__label{
  font-family:var(--font-serif-label);
  font-size:11px;
  letter-spacing:.14em;
  color:rgba(47,227,200,.75);
}

.footer-col__value{
  font-size:14.5px;
  color:rgba(255,253,248,.86);
  overflow-wrap:anywhere;
}

.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 26px;
  margin-top:clamp(28px, 3.4vw, 46px);
  padding-top:clamp(18px, 2.4vw, 26px);
  border-top:1px solid rgba(201,212,226,.18);
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.04em;
  color:rgba(255,253,248,.55);
}

.footer-legal__icp{white-space:nowrap;}

.footer-legal__nav{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  margin-left:auto;
}

.footer-legal__link{
  color:rgba(255,253,248,.74);
  border-bottom:1px solid rgba(201,212,226,.32);
  transition:color .18s var(--ease), border-color .18s var(--ease);
}

.footer-legal__link:hover{
  color:var(--cyan);
  border-bottom-color:var(--cyan);
}

@media (max-width:640px){
  .footer-legal__nav{
    margin-left:0;
    width:100%;
    gap:14px;
  }
}

/* ============================================================
   偏好设置
   ============================================================ */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}

  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }

  .reveal{
    opacity:1;
    transform:none;
  }

  .skip-link{transition:none;}
  .site-header__rail{transition:none;}
}