/* ==========================================================================
   开心娱乐登录 · Site Kit 共享样式 /assets/site.css
   纵向叙事长卷 · 悬浮胶囊导航 · 切角面板 · 黑白高对比 + 一处暖橙锚点
   ========================================================================== */

:root{
  --ink-900:#14161A;
  --ink-700:#2A2E36;
  --paper:#FFF9F0;
  --paper-deep:#FFEFDD;
  --orange:#FF5A1F;
  --orange-dark:#E2440C;
  --yellow:#FFC53D;
  --blue:#0B2A4A;
  --blue-soft:#123A62;
  --mint:#2FD3A5;
  --coral:#FFE3D6;
  --neutral:#6B7280;
  --focus:#005FCC;
  --line:rgba(20,22,26,.12);
  --line-strong:rgba(20,22,26,.24);
  --shell:1200px;
  --shell-wide:1440px;
  --pad:clamp(16px,4vw,40px);
  --cut:10px;
  --ease:cubic-bezier(.22,.7,.28,1);
  --font-display:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:ui-monospace,"SFMono-Regular",Menlo,Consolas,monospace;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-900);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.nav-open{overflow:hidden}
img,svg,video{display:block;max-width:100%}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
h1,h2,h3,h4,h5{font-family:var(--font-display);font-weight:900;line-height:1.14;letter-spacing:-.012em}
ul,ol{margin:0;padding:0;list-style:none}
a{color:inherit}
button{font:inherit;color:inherit}
::selection{background:var(--yellow);color:var(--ink-900)}

/* ---------- 可访问性 ---------- */
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:6px}
.skip-link{
  position:absolute;
  left:var(--pad);
  top:-72px;
  z-index:400;
  padding:12px 20px;
  background:var(--ink-900);
  color:var(--paper);
  font-family:var(--font-display);
  font-weight:800;
  font-size:14px;
  text-decoration:none;
  border-radius:0 0 12px 12px;
  transition:top .2s var(--ease);
}
.skip-link:focus{top:0}
.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;
}

/* ---------- 基础排版 ---------- */
.prose{max-width:38em;font-size:17px;line-height:1.78}
.prose p{margin:0 0 1.05em}
.prose h2{font-size:clamp(24px,3vw,32px);margin:1.7em 0 .55em}
.prose h3{font-size:clamp(19px,2.2vw,22px);margin:1.5em 0 .5em}
.prose ul,.prose ol{margin:0 0 1.1em;padding-left:1.25em;list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:.3em 0}
.prose a{color:var(--orange);text-decoration:underline;text-underline-offset:3px}
.prose a:hover{color:var(--orange-dark)}
.prose strong{font-weight:800}
.prose blockquote{
  margin:1.4em 0;padding:16px 20px;border-left:4px solid var(--orange);
  background:var(--coral);font-weight:600;
}
.eyebrow{
  display:inline-block;
  font-family:var(--font-display);
  font-size:12px;font-weight:800;
  letter-spacing:.24em;text-transform:uppercase;
  color:var(--neutral);
}
.eyebrow--vertical{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  letter-spacing:.34em;
  line-height:1;
}
.section-index{display:inline-flex;align-items:center;gap:10px}
.section-index-num{
  display:inline-grid;place-items:center;
  min-width:46px;height:34px;padding:0 10px;
  background:var(--yellow);color:var(--ink-900);
  font-family:var(--font-display);font-weight:900;font-size:15px;
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
  clip-path:polygon(6px 0,100% 0,100% calc(100% - 6px),calc(100% - 6px) 100%,0 100%,0 6px);
}
.section-index-label{
  font-family:var(--font-display);font-weight:800;
  font-size:12px;letter-spacing:.2em;color:var(--ink-700);
}

/* ---------- 容器与栅格 ---------- */
.container{width:100%;max-width:var(--shell);margin:0 auto;padding-inline:var(--pad)}
.container--wide{max-width:var(--shell-wide)}
.grid{display:grid;gap:clamp(14px,2vw,24px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--6{grid-template-columns:repeat(6,minmax(0,1fr))}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:14px 24px;border:1px solid transparent;border-radius:999px;
  font-family:var(--font-display);font-weight:800;font-size:15px;line-height:1;
  text-decoration:none;cursor:pointer;
  background:var(--ink-900);color:var(--paper);
  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:hover{transform:translateY(-2px)}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 10px 24px rgba(255,90,31,.26)}
.btn-primary:hover{background:var(--orange-dark);box-shadow:0 14px 28px rgba(255,90,31,.32)}
.btn-ghost{background:transparent;color:var(--ink-900);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
.btn-sm{padding:10px 17px;font-size:13.5px}
.btn-block{width:100%}

/* ---------- 卡片 / 标签 ---------- */
.card-cut{
  position:relative;
  padding:clamp(18px,2.4vw,26px);
  background:#fff;
  border:1px solid var(--line);
  clip-path:polygon(0 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.card-cut:hover{transform:translateY(-2px);border-color:var(--orange);box-shadow:0 14px 30px rgba(20,22,26,.1)}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;border:1px solid transparent;
  background:var(--coral);color:var(--ink-900);
  font-size:12.5px;font-weight:700;letter-spacing:.02em;text-decoration:none;
  transition:border-color .16s var(--ease),color .16s var(--ease);
}
.chip:hover{border-color:var(--orange);color:var(--orange-dark)}
.chip--yellow{background:var(--yellow)}
.chip--mint{background:rgba(47,211,165,.16);color:#0F6B55}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:18px 0 0}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.03em;color:var(--neutral)}
.breadcrumb-item{display:flex;align-items:center;gap:8px}
.breadcrumb-link{color:var(--ink-700);text-decoration:none;border-bottom:1px solid var(--line-strong);padding-bottom:1px}
.breadcrumb-link:hover{color:var(--orange);border-color:var(--orange)}
.breadcrumb-sep{color:var(--line-strong)}
.breadcrumb-current{color:var(--ink-900);font-weight:700}

/* ---------- 图片容器基础规则 ---------- */
.media{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
  background:
    radial-gradient(120% 120% at 22% 16%,rgba(255,197,61,.95),rgba(255,90,31,.6) 46%,rgba(11,42,74,.98) 100%);
  clip-path:polygon(0 0,100% 0,100% calc(100% - 14px),calc(100% - 14px) 100%,0 100%);
}
.media img,.media video{width:100%;height:100%;object-fit:cover}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,249,240,.16) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,249,240,.16) 1px,transparent 1px);
  background-size:30px 30px;
  mix-blend-mode:overlay;
}
.media--wide{aspect-ratio:21/9}
.media--square{aspect-ratio:1/1}
.media--tall{aspect-ratio:4/5}
.media-caption{margin:9px 0 0;font-size:12.5px;letter-spacing:.02em;color:var(--neutral)}

/* ---------- 分段切换（tabs） ---------- */
.tablist{
  display:flex;flex-wrap:wrap;gap:8px;
  padding-bottom:12px;margin-bottom:24px;
  border-bottom:1px solid var(--line);
}
.tab{
  padding:10px 18px;border:1px solid var(--line);
  border-radius:999px;background:transparent;
  font-family:var(--font-display);font-weight:800;font-size:14px;
  color:var(--ink-700);cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.tab:hover{border-color:var(--orange);color:var(--orange)}
.tab[aria-selected="true"]{background:var(--ink-900);border-color:var(--ink-900);color:var(--paper)}
.tabpanel[hidden]{display:none}

/* ---------- 折叠块 ---------- */
.fold-title{
  display:flex;align-items:center;gap:12px;
  padding:16px 18px;cursor:pointer;
  font-family:var(--font-display);font-weight:800;font-size:16.5px;
  list-style:none;
}
.fold-title::-webkit-details-marker{display:none}
.fold-title::before{
  content:"";width:0;height:0;flex:0 0 auto;
  border-left:7px solid var(--mint);
  border-top:5px solid transparent;
  border-bottom:5px solid transparent;
  transition:transform .2s var(--ease);
}
details[open] > .fold-title::before{transform:rotate(90deg)}
.fold-body{padding:0 18px 18px;font-size:15.5px;color:var(--ink-700)}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:clamp(14px,3vw,28px);bottom:clamp(14px,3vw,28px);z-index:80;
  width:48px;height:48px;display:grid;place-items:center;
  border:1px solid var(--line-strong);border-radius:999px;
  background:var(--paper);color:var(--ink-900);
  font-family:var(--font-display);font-weight:900;font-size:13px;
  cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s,background-color .18s,color .18s,border-color .18s;
}
.to-top.is-on{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--orange);border-color:var(--orange);color:#fff}

/* ---------- 显现动效 ---------- */
[data-reveal]{
  opacity:0;transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
[data-reveal].is-in{opacity:1;transform:none}

/* ==========================================================================
   头部：悬浮胶囊导航
   ========================================================================== */
.site-header{
  position:sticky;top:0;z-index:90;
  padding:14px var(--pad) 0;
  background:linear-gradient(to bottom,var(--paper) 64%,rgba(255,249,240,0));
}
.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:200;
  background:linear-gradient(90deg,var(--orange),var(--yellow));
  transform:scaleX(0);transform-origin:0 50%;
  pointer-events:none;
}
.header-shell{max-width:var(--shell);margin:0 auto}

.nav-pod{
  position:relative;z-index:120;
  display:flex;align-items:center;gap:clamp(10px,2vw,26px);
  padding:9px 10px 9px 12px;
  background:rgba(255,249,240,.93);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:0 12px 34px rgba(20,22,26,.09);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  transition:padding .24s var(--ease),box-shadow .24s var(--ease),background-color .24s var(--ease),border-color .24s var(--ease);
}
.nav-pod[data-scrolled]{
  padding:5px 8px 5px 10px;
  background:rgba(255,249,240,.98);
  border-color:rgba(20,22,26,.18);
  box-shadow:0 8px 22px rgba(20,22,26,.14);
}

/* 品牌灯牌 */
.brand{
  position:relative;z-index:130;
  display:flex;align-items:center;gap:10px;
  flex:0 0 auto;padding:3px 6px 3px 2px;
  text-decoration:none;color:var(--ink-900);
  border-radius:999px;
}
.brand-mark{
  width:38px;height:38px;display:grid;place-items:center;flex:0 0 auto;
  background:var(--orange);color:#fff;
  font-family:var(--font-display);font-weight:900;font-size:19px;line-height:1;
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
  transition:transform .2s var(--ease);
}
.brand:hover .brand-mark{transform:translateY(-2px) rotate(-4deg)}
.brand-text{display:flex;flex-direction:column;line-height:1.12}
.brand-name{font-family:var(--font-display);font-weight:900;font-size:15.5px;letter-spacing:.01em;white-space:nowrap}
.brand-tag{font-size:10.5px;font-weight:700;letter-spacing:.16em;color:var(--neutral);white-space:nowrap}

/* 导航 */
.nav{display:flex;flex:1 1 auto;justify-content:center;margin-left:auto}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-item{display:block}
.nav-link{
  display:inline-block;padding:9px 13px;
  border-radius:999px;
  font-family:var(--font-display);font-weight:700;font-size:14.5px;
  color:var(--ink-700);text-decoration:none;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.nav-link:hover{background:var(--coral);color:var(--ink-900)}
.nav-link[aria-current="page"]{background:var(--yellow);color:var(--ink-900)}

.pod-actions{position:relative;z-index:130;display:flex;align-items:center;gap:8px;flex:0 0 auto}

/* 移动菜单按钮 */
.nav-toggle{
  display:none;align-items:center;gap:9px;
  padding:9px 15px;
  background:transparent;border:1px solid var(--line-strong);
  border-radius:999px;cursor:pointer;
  font-family:var(--font-display);font-weight:800;font-size:13px;color:var(--ink-900);
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--orange);color:var(--orange)}
.nav-toggle-bar{position:relative;display:block;width:16px;height:2px;border-radius:2px;background:currentColor;transition:background-color .2s var(--ease)}
.nav-toggle-bar::before,.nav-toggle-bar::after{
  content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;
  background:currentColor;
  transition:transform .2s var(--ease),top .2s var(--ease),background-color .2s var(--ease);
}
.nav-toggle-bar::before{top:-5px}
.nav-toggle-bar::after{top:5px}
.nav-toggle[aria-expanded="true"]{color:var(--yellow);border-color:rgba(255,249,240,.45)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before{top:0;transform:rotate(45deg);background:var(--paper)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after{top:0;transform:rotate(-45deg);background:var(--paper)}

/* ==========================================================================
   页脚：深海蓝重音区
   ========================================================================== */
.site-footer{
  position:relative;
  margin-top:clamp(56px,9vw,120px);
  background:var(--blue);
  color:var(--paper);
  overflow:hidden;
}
.footer-band{
  height:8px;
  background:linear-gradient(90deg,var(--orange) 0 58%,var(--yellow) 58% 100%);
}
.footer-shell{
  position:relative;
  max-width:var(--shell);
  margin:0 auto;
  padding:clamp(38px,6vw,68px) var(--pad) 0;
}
.footer-top{
  display:grid;
  grid-template-columns:1.25fr 1.55fr 1.1fr;
  gap:clamp(24px,4vw,56px);
  padding-bottom:clamp(28px,4vw,44px);
  border-bottom:1px solid rgba(255,249,240,.16);
}
.footer-brand{display:block}
.footer-mark{
  width:44px;height:44px;display:grid;place-items:center;
  background:var(--orange);color:#fff;
  font-family:var(--font-display);font-weight:900;font-size:21px;line-height:1;
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
}
.footer-brand-name{margin:16px 0 3px;font-family:var(--font-display);font-weight:900;font-size:20px;letter-spacing:.01em}
.footer-brand-line{margin:0;font-family:var(--font-display);font-size:11.5px;font-weight:800;letter-spacing:.24em;color:var(--yellow)}
.footer-note{margin:14px 0 0;max-width:26em;font-size:14px;line-height:1.72;color:rgba(255,249,240,.66)}
.footer-nav{display:grid;grid-template-columns:1fr 1fr;gap:clamp(18px,3vw,32px)}
.footer-col{display:block}
.footer-col-title{
  margin:0 0 14px;
  font-family:var(--font-display);font-weight:800;font-size:12px;
  letter-spacing:.2em;color:var(--mint);
}
.footer-list{display:grid;gap:10px}
.footer-link{
  display:inline-block;
  font-size:14.5px;color:rgba(255,249,240,.82);text-decoration:none;
  border-bottom:1px solid transparent;padding-bottom:1px;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.footer-link:hover{color:var(--yellow);border-color:var(--yellow)}
.footer-contact{display:block}
.footer-contact-item{
  margin:0 0 10px;
  font-size:14px;line-height:1.62;color:rgba(255,249,240,.82);
  font-variant-numeric:tabular-nums;
}
.footer-contact-link{
  color:var(--paper);text-decoration:none;
  border-bottom:1px solid rgba(255,197,61,.45);
  word-break:break-all;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.footer-contact-link:hover{color:var(--yellow);border-color:var(--yellow)}
.footer-contact-note{margin:14px 0 0;max-width:20em;font-size:12.5px;line-height:1.6;color:rgba(255,249,240,.5)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;
  gap:12px 26px;
  padding:22px 0 28px;
  font-size:13px;color:rgba(255,249,240,.6);
}
.footer-legal{margin:0}
.footer-legal-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-legal-link{
  color:rgba(255,249,240,.74);text-decoration:none;
  border-bottom:1px solid transparent;padding-bottom:1px;
  transition:color .16s var(--ease),border-color .16s var(--ease);
}
.footer-legal-link:hover{color:var(--yellow);border-color:var(--yellow)}
.footer-icp{margin:0 0 0 auto;font-variant-numeric:tabular-nums;letter-spacing:.02em;color:rgba(255,249,240,.5)}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1100px){
  .grid--6{grid-template-columns:repeat(3,minmax(0,1fr))}
  .nav-link{padding:9px 10px;font-size:14px}
  .brand-tag{display:none}
}

@media (max-width:980px){
  .site-header{padding:10px var(--pad) 0}
  .nav-pod{
    padding:8px 8px 8px 10px;
    background:var(--paper);
    -webkit-backdrop-filter:none;
    backdrop-filter:none;
  }
  .nav-pod[data-scrolled]{padding:6px 8px 6px 10px}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}

  /* 全屏块状矩阵 */
  .nav{
    position:fixed;
    inset:0;
    z-index:110;
    display:block;
    margin:0;
    padding:96px var(--pad) 48px;
    background:var(--blue);
    color:var(--paper);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
  }
  .nav[data-open]{opacity:1;visibility:visible;transform:none}
  .nav-list{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:10px;
    counter-reset:navidx;
  }
  .nav-item{display:block;counter-increment:navidx}
  .nav-link{
    display:flex;flex-direction:column;justify-content:space-between;gap:20px;
    min-height:100px;padding:14px 16px;
    border-radius:0;
    background:rgba(255,249,240,.07);
    border:1px solid rgba(255,249,240,.18);
    color:var(--paper);
    font-weight:900;font-size:18px;line-height:1.22;
    white-space:normal;
    clip-path:polygon(0 0,100% 0,100% calc(100% - 12px),calc(100% - 12px) 100%,0 100%);
    transition:background-color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
  }
  .nav-link::before{
    content:counter(navidx,decimal-leading-zero);
    font-family:var(--font-mono);
    font-size:11.5px;font-weight:700;letter-spacing:.14em;
    color:var(--yellow);
  }
  .nav-link:hover{background:rgba(255,249,240,.14);border-color:var(--yellow);color:var(--paper);transform:none}
  .nav-link[aria-current="page"]{
    background:var(--orange);
    border-color:var(--orange);
    color:#fff;
  }
  .nav-link[aria-current="page"]::before{color:rgba(255,255,255,.78)}
  .nav-toggle{display:inline-flex}

  .footer-top{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
}

@media (max-width:760px){
  body{font-size:16.5px}
  .grid--2,.grid--3,.grid--6{grid-template-columns:repeat(2,minmax(0,1fr))}
  .media--wide{aspect-ratio:16/9}
  .footer-icp{margin-left:0}
}

@media (max-width:560px){
  .brand-mark{width:34px;height:34px;font-size:17px}
  .brand-name{font-size:14px}
  .nav-toggle-label{display:none}
  .nav-toggle{padding:10px}
  .btn-sm{padding:9px 14px;font-size:12.5px}
  .nav-list{grid-template-columns:1fr}
  .nav-link{min-height:82px;font-size:17px}
  .grid--2,.grid--3,.grid--6{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-nav{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* ==========================================================================
   减少动效偏好
   ========================================================================== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  [data-reveal]{opacity:1;transform:none}
  .scroll-progress{display:none}
}