/* ============================================================
   必赢亚州 · /assets/site.css
   共享外壳：reset / 变量 / 中文排版 / 头部 / 页脚 / 反馈舱 / 通用组件
   ============================================================ */

/* ---------- 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{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0}
img,svg,video{display:block;max-width:100%}
table{border-collapse:collapse;width:100%}

/* ---------- 2. tokens ---------- */
:root{
  --navy:#071A2B;
  --navy-deep:#04121E;
  --cabin:#0C2E4A;
  --signal:#FF5A1F;
  --grass:#19C37D;
  --amber:#FFB000;
  --cyan:#29E3FF;
  --paper:#F4F1E8;
  --paper-2:#E8E1D2;
  --ink:#0B1116;
  --fog:#6B7A8A;
  --line:rgba(41,227,255,.26);
  --line-soft:rgba(41,227,255,.14);
  --font-display:"Barlow Condensed","Oswald","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-body:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono","Roboto Mono","SFMono-Regular","Noto Sans Mono",ui-monospace,Menlo,monospace;
  --header-h:74px;
  --edge:clamp(16px,4vw,64px);
  --maxw:1360px;
  --ease:cubic-bezier(.32,.72,.24,1);
  --rule-tick:repeating-linear-gradient(90deg,var(--amber) 0 2px,transparent 2px 24px);
}

/* ---------- 3. 基础排版 ---------- */
html{background:var(--navy)}
body{
  display:block;
  background:var(--navy);
  color:var(--paper);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.08;letter-spacing:.01em}
p{max-width:68ch}
strong{font-weight:700;color:var(--paper)}
::selection{background:var(--signal);color:#08131c}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
#main-content{display:block;scroll-margin-top:calc(var(--header-h) + 16px)}

/* ---------- 4. 通用工具与容器 ---------- */
.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--edge)}
.band{padding-block:clamp(40px,6vw,84px)}
.band--cabin{background:var(--cabin)}
.band--paper{background:var(--paper);color:var(--ink)}
.band--paper h1,.band--paper h2,.band--paper h3,.band--paper strong{color:var(--ink)}
.band--paper p{color:#26303A}
.band--paper :focus-visible{outline-color:#0A6E80}
.page-top{padding-top:calc(var(--header-h) + clamp(24px,4vw,52px))}
.hero-band{padding-top:calc(var(--header-h) + clamp(28px,6vw,72px))}
.rule{height:1px;border:0;margin-block:clamp(24px,3vw,40px);background:linear-gradient(90deg,var(--line),transparent)}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.display-xl{font-family:var(--font-display);font-weight:700;font-size:clamp(40px,7vw,104px);line-height:.94;letter-spacing:-.005em}
.score{font-family:var(--font-mono);font-weight:800;font-variant-numeric:tabular-nums;font-size:clamp(28px,4vw,54px);line-height:1;color:var(--amber);letter-spacing:.02em}

/* ---------- 5. 状态点与索引标签 ---------- */
.status-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--grass);box-shadow:0 0 0 3px rgba(25,195,125,.18);flex:none;animation:pip 2.6s ease-in-out infinite}
@keyframes pip{0%,100%{box-shadow:0 0 0 3px rgba(25,195,125,.16)}50%{box-shadow:0 0 0 6px rgba(25,195,125,.06)}}
.panel-kicker,.section-kicker,.footer-heading,.contact-label,.nav-foot-text{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;font-weight:500;
}

/* ---------- 6. 头部 ---------- */
.skip-link{
  position:fixed;top:10px;left:10px;z-index:220;
  padding:10px 18px;background:var(--paper);color:var(--ink);
  font-size:13px;letter-spacing:.08em;border:1px solid var(--ink);
  transform:translateY(-180%);transition:transform .2s var(--ease);
}
.skip-link:focus-visible{transform:none;outline:2px solid var(--signal);outline-offset:2px}

.site-header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  color:var(--paper);
  background:linear-gradient(180deg,rgba(7,26,43,.94) 0%,rgba(7,26,43,.55) 62%,rgba(7,26,43,0) 100%);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header[data-scrolled="true"]{
  background:var(--navy);
  border-bottom-color:var(--line);
  box-shadow:0 16px 34px -30px #000;
}
.header-inner{
  width:100%;max-width:var(--maxw);margin-inline:auto;
  padding:clamp(12px,1.8vw,18px) var(--edge);
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;
  gap:clamp(12px,2vw,32px);
  transition:padding .3s var(--ease);
}
.site-header[data-scrolled="true"] .header-inner{padding-block:10px}

/* 品牌署名 */
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{
  position:relative;display:grid;place-items:center;
  width:32px;height:32px;flex:none;
  border:1px solid var(--line);
  background:rgba(12,46,74,.72);
}
.brand-mark::after{content:"";position:absolute;inset:3px;border:1px solid rgba(41,227,255,.14)}
.brand-pip{display:block;width:10px;height:10px;background:var(--signal);box-shadow:0 0 0 3px rgba(255,90,31,.18)}
.brand-text{display:flex;flex-direction:column;gap:3px;min-width:0}
.brand-name{font-family:var(--font-display);font-size:21px;font-weight:700;line-height:1;letter-spacing:.09em;color:var(--paper)}
.brand-meta{display:flex;align-items:center;gap:7px;font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;color:rgba(244,241,232,.6);line-height:1}
.brand-round{color:var(--amber);font-weight:700}
.brand-live{white-space:nowrap}
.brand:hover .brand-pip{background:var(--amber)}

/* 主导航 */
.site-nav{justify-self:center;min-width:0}
.nav-list{display:flex;align-items:center;gap:clamp(10px,1.6vw,26px)}
.nav-link{
  position:relative;display:inline-block;padding:6px 1px;
  font-size:clamp(12px,1.05vw,14px);letter-spacing:.07em;
  color:rgba(244,241,232,.76);
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:transparent;transform:scaleX(.35);transform-origin:left;
  transition:background .2s var(--ease),transform .24s var(--ease);
}
.nav-link:hover{color:var(--paper)}
.nav-link:hover::after{background:rgba(41,227,255,.5);transform:scaleX(1)}
.nav-link[aria-current="page"]{color:var(--paper);font-weight:700}
.nav-link[aria-current="page"]::after{background:var(--signal);transform:scaleX(1)}
.nav-foot{display:none}

/* 右侧操作 */
.header-actions{display:flex;align-items:center;gap:10px;justify-self:end}
.ghost-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;cursor:pointer;
  border:1px solid var(--line);background:rgba(12,46,74,.45);
  color:var(--paper);font-size:12px;letter-spacing:.14em;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.ghost-btn::before{content:"";width:6px;height:6px;background:var(--signal);flex:none;transition:background .2s}
.ghost-btn:hover{border-color:var(--signal);color:#fff;background:rgba(255,90,31,.14)}
.ghost-btn:hover::before{background:var(--amber)}
.nav-toggle{
  display:none;width:42px;height:38px;flex:none;cursor:pointer;
  border:1px solid var(--line);background:rgba(12,46,74,.45);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:0;
}
.nav-toggle-bar{display:block;width:18px;height:2px;background:var(--paper);transition:transform .26s var(--ease),opacity .18s linear}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(2){opacity:0}
.site-header[data-open="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 记分牌进度米尺 */
.scroll-meter{position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(41,227,255,.12);overflow:hidden}
.scroll-meter-fill{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--amber),var(--signal))}

/* ---------- 7. 页脚 ---------- */
.site-footer{
  position:relative;background:var(--navy);color:var(--paper);
  border-top:1px solid var(--line);
  margin-top:clamp(48px,8vw,96px);
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:5px;background:var(--rule-tick);opacity:.5}
.footer-inner{width:100%;max-width:var(--maxw);margin-inline:auto;padding:clamp(34px,5vw,64px) var(--edge) clamp(18px,3vw,30px)}
.footer-top{
  display:grid;gap:clamp(22px,3vw,38px);
  grid-template-columns:1.35fr .85fr 1.45fr 1.1fr;align-items:start;
}
.footer-col{min-width:0}
.footer-brand{
  display:inline-block;font-family:var(--font-display);font-size:clamp(24px,3vw,32px);
  font-weight:700;line-height:1;letter-spacing:.1em;color:var(--paper);
}
.footer-brand::after{content:"";display:block;width:44px;height:2px;margin-top:10px;background:var(--signal)}
.footer-tagline{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(244,241,232,.72);max-width:30ch}
.footer-sync{display:flex;align-items:center;gap:8px;margin-top:12px;font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:rgba(244,241,232,.6)}
.footer-heading{display:flex;align-items:center;gap:8px;margin-bottom:14px;color:var(--cyan)}
.footer-heading::before{content:"";width:10px;height:1px;background:var(--cyan);flex:none}
.footer-list{display:grid;gap:9px}
.footer-link{
  display:inline-block;font-size:14px;color:rgba(244,241,232,.78);
  border-bottom:1px solid transparent;transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer-link:hover{color:var(--paper);border-bottom-color:var(--signal)}
.footer-list--contact{gap:12px}
.contact-row{
  display:grid;grid-template-columns:1fr auto;align-items:center;
  gap:4px 12px;padding-bottom:10px;
  border-bottom:1px dashed rgba(41,227,255,.16);
}
.contact-label{grid-column:1;grid-row:1;color:var(--fog)}
.contact-value{grid-column:1;grid-row:2;font-size:13px;line-height:1.5;color:var(--paper);word-break:break-word}
.contact-row .copy-btn{grid-column:2;grid-row:1 / span 2;align-self:center}
.copy-btn{
  display:inline-flex;align-items:center;gap:6px;flex:none;cursor:pointer;
  padding:6px 10px;font-size:11px;letter-spacing:.1em;
  border:1px solid rgba(107,122,138,.55);color:rgba(244,241,232,.85);
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.copy-btn::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--fog);transition:background .2s}
.copy-btn:hover{border-color:var(--cyan);color:var(--cyan)}
.copy-btn:hover::before{background:var(--cyan)}
.copy-btn[data-copied="true"]{border-color:var(--grass);color:var(--grass)}
.copy-btn[data-copied="true"]::before{background:var(--grass)}
.footer-address{margin-top:16px;font-size:13px;line-height:1.8;color:rgba(244,241,232,.62);max-width:32ch}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 20px;
  margin-top:clamp(26px,4vw,44px);padding-top:18px;
  border-top:1px solid rgba(41,227,255,.16);
  font-size:12px;color:var(--fog);
}
.footer-copy{color:rgba(244,241,232,.62)}
.footer-legal{color:var(--fog)}

/* ---------- 8. 反馈舱 ---------- */
.feedback-panel{
  position:fixed;top:0;right:0;bottom:0;z-index:150;
  width:min(390px,92vw);
  display:flex;flex-direction:column;gap:18px;
  padding:clamp(20px,3vw,30px);
  background:var(--cabin);color:var(--paper);
  border-left:1px solid var(--line);
  box-shadow:-40px 0 70px -50px #000;
  transform:translateX(102%);
  transition:transform .34s var(--ease);
  overflow-y:auto;
}
.feedback-panel[data-open="true"]{transform:none}
.panel-scrim{
  position:fixed;inset:0;z-index:140;background:rgba(7,26,43,.7);
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
}
.panel-scrim[data-open="true"]{opacity:1;pointer-events:auto}
.panel-head{position:relative;padding-bottom:16px;border-bottom:1px solid var(--line)}
.panel-kicker{color:var(--cyan);margin-bottom:8px}
.panel-title{font-size:clamp(22px,3.4vw,28px);line-height:1.16}
.panel-close{
  position:absolute;top:0;right:0;cursor:pointer;
  padding:5px 10px;font-size:11px;letter-spacing:.12em;
  border:1px solid rgba(107,122,138,.55);color:rgba(244,241,232,.85);
  transition:border-color .2s,color .2s;
}
.panel-close:hover{border-color:var(--signal);color:var(--signal)}
.panel-body{display:flex;flex-direction:column;gap:16px}
.panel-text{font-size:14px;line-height:1.8;color:rgba(244,241,232,.78)}
.panel-list{display:grid;gap:12px}
.panel-cta{align-self:flex-start}
.panel-foot{font-size:12px;color:var(--fog);line-height:1.9}
.panel-link{color:var(--cyan);border-bottom:1px solid rgba(41,227,255,.45)}

/* ---------- 9. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 22px;font-size:14px;letter-spacing:.09em;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn--signal{background:var(--signal);color:#08131c}
.btn--signal:hover{background:#ff7a45;transform:translateY(-1px)}
.btn--ghost{border-color:var(--line);color:var(--paper)}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan)}

/* ---------- 10. 标签与筛选芯片 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 9px;font-family:var(--font-mono);font-size:10px;
  letter-spacing:.14em;text-transform:uppercase;line-height:1.6;
  border:1px solid var(--line);color:var(--cyan);background:rgba(12,46,74,.7);
}
.tag--signal{background:var(--signal);border-color:var(--signal);color:#08131c}
.tag--grass{border-color:rgba(25,195,125,.55);color:var(--grass);background:rgba(25,195,125,.08)}
.tag--amber{border-color:rgba(255,176,0,.55);color:var(--amber);background:rgba(255,176,0,.08)}
.band--paper .tag{background:var(--paper-2);border-color:rgba(11,17,22,.2);color:#1E2A33}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  padding:7px 14px;font-size:12px;letter-spacing:.08em;cursor:pointer;
  border:1px solid var(--line);background:transparent;color:rgba(244,241,232,.8);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{border-color:var(--cyan);color:var(--paper)}
.chip[aria-pressed="true"]{background:var(--signal);border-color:var(--signal);color:#08131c;font-weight:700}

/* ---------- 11. 章节头、面包屑 ---------- */
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:10px 24px;margin-bottom:clamp(20px,3vw,34px)}
.section-kicker{color:var(--cyan);padding-bottom:4px}
.band--paper .section-kicker{color:#0A6E80}
.section-title{font-size:clamp(26px,3.4vw,44px);line-height:1.06}
.breadcrumbs{padding-block:clamp(14px,2vw,22px);font-family:var(--font-mono);font-size:11px;letter-spacing:.1em}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px;color:var(--fog)}
.breadcrumbs li{display:flex;align-items:center;gap:10px}
.breadcrumbs li+li::before{content:"›";color:rgba(107,122,138,.75)}
.breadcrumbs a{color:var(--fog);text-decoration:underline;text-decoration-color:rgba(107,122,138,.45);text-underline-offset:3px}
.breadcrumbs a:hover{color:var(--cyan)}
.breadcrumbs [aria-current="page"]{color:var(--paper)}
.band--paper .breadcrumbs [aria-current="page"]{color:var(--ink)}

/* ---------- 12. 模块与卡片 ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:clamp(10px,1.4vw,18px)}
.bento__cell{
  grid-column:span 12;position:relative;
  padding:clamp(16px,2vw,26px);
  background:var(--cabin);border:1px solid var(--line-soft);
}
.bento__cell--a{grid-column:span 8}
.bento__cell--c{grid-column:span 4}
.card{
  padding:clamp(16px,2vw,26px);
  background:var(--cabin);border:1px solid var(--line-soft);
}
.card--paper{background:var(--paper);color:var(--ink);border-color:rgba(11,17,22,.18);box-shadow:6px 6px 0 0 var(--paper-2)}
.card--paper h2,.card--paper h3{color:var(--ink)}

/* ---------- 13. 图片容器基础规则 ---------- */
.media{
  position:relative;display:block;width:100%;
  aspect-ratio:16 / 10;overflow:hidden;
  background:linear-gradient(150deg,var(--cabin),var(--navy-deep));
  border:1px solid var(--line-soft);
}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(0deg,rgba(41,227,255,.07) 0 1px,transparent 1px 4px);
}
.media img{width:100%;height:100%;object-fit:cover}
.media--tall{aspect-ratio:9 / 16}
.media--square{aspect-ratio:1 / 1}
.media--wide{aspect-ratio:21 / 9}

/* ---------- 14. 显现协议 ---------- */
[data-reveal]{transition:opacity .62s var(--ease),transform .62s var(--ease);transition-delay:var(--reveal-delay,0ms)}
[data-reveal-state="pending"]{opacity:0;transform:translateY(18px);transition:none}
[data-reveal].is-revealed{opacity:1;transform:none}

/* ---------- 15. 响应式 ---------- */
@media (max-width:1080px){
  .footer-top{grid-template-columns:1fr 1fr}
  .nav-list{gap:12px}
}
@media (max-width:900px){
  :root{--header-h:64px}
  .site-nav{
    position:fixed;left:0;right:0;bottom:0;z-index:120;
    justify-self:stretch;
    max-height:calc(100vh - var(--header-h) - 16px);
    overflow-y:auto;
    padding:18px var(--edge) calc(22px + env(safe-area-inset-bottom));
    background:var(--navy);
    border-top:1px solid var(--line);
    box-shadow:0 -24px 50px -40px #000;
    transform:translateY(104%);visibility:hidden;
    transition:transform .32s var(--ease),visibility .32s linear;
  }
  .site-header[data-open="true"] .site-nav{transform:none;visibility:visible}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item{border-bottom:1px solid rgba(244,241,232,.1)}
  .nav-link{display:block;padding:14px 2px;font-size:16px;letter-spacing:.06em}
  .nav-link::after{display:none}
  .nav-link[aria-current="page"]::before{
    content:"";display:inline-block;width:14px;height:2px;background:var(--signal);
    margin-right:10px;vertical-align:middle;
  }
  .nav-foot{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:18px}
  .nav-foot-text{color:var(--fog);letter-spacing:.14em}
  .nav-foot-link{
    display:inline-flex;padding:10px 16px;font-size:13px;letter-spacing:.1em;
    background:var(--signal);color:#08131c;font-weight:700;
  }
  .nav-toggle{display:flex}
  .header-inner{grid-template-columns:1fr auto}
  .brand-meta{font-size:9px}
  .bento__cell--a,.bento__cell--c{grid-column:span 12}
}
@media (max-width:600px){
  .footer-top{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .ghost-btn{padding:7px 11px;font-size:11px;letter-spacing:.1em}
  .brand-name{font-size:19px}
  .footer-address{max-width:none}
}

/* ---------- 16. 可访问性 ---------- */
@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],[data-reveal-state="pending"]{opacity:1 !important;transform:none !important}
  .site-nav{transition:none}
  .feedback-panel{transition:none}
  .btn--signal:hover{transform:none}
}