/* =========================================================
   永盈会电子服 · 共享站点样式 /assets/site.css
   母题：认证徽章 · 电子纹理 · 框架式导航
   ========================================================= */

/* ---------- 1. 设计令牌 ---------- */
:root{
  color-scheme: dark;

  --deep:#071A2F;
  --night:#0C2740;
  --cyan:#35F0D0;
  --amber:#FFB44D;
  --violet:#7B5CFF;
  --paper:#F2F7FB;
  --mist:#A9C3D6;
  --graphite:#101C26;
  --mint:#4FD1A5;
  --coral:#FF7A59;

  --line:rgba(242,247,251,.12);
  --line-soft:rgba(242,247,251,.07);
  --line-strong:rgba(242,247,251,.24);

  --rail-w:clamp(216px,19vw,264px);
  --wrap-max:1180px;
  --pad-x:32px;

  --font-sans:"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --font-mono:"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Roboto Mono","Courier New",monospace;

  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:480ms;

  --scroll-progress:0;
}

/* ---------- 2. 基本重置 ---------- */
*,*::before,*::after{box-sizing:border-box;}

html{
  overflow-x:hidden;
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
  background:
    radial-gradient(1100px 720px at 84% -10%, rgba(123,92,255,.20), transparent 62%),
    radial-gradient(880px 620px at 4% -6%, rgba(53,240,208,.09), transparent 58%),
    radial-gradient(760px 540px at 52% 106%, rgba(255,180,77,.06), transparent 62%),
    var(--deep);
}

body{
  margin:0;
  min-height:100vh;
  padding-left:var(--rail-w);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{list-style:none;margin:0;padding:0;}
img,svg,picture{display:block;max-width:100%;}
button{font:inherit;color:inherit;background:none;border:0;padding:0;}
a{color:inherit;}
p a{
  text-decoration:underline;
  text-decoration-color:rgba(53,240,208,.45);
  text-decoration-thickness:1px;
  text-underline-offset:3px;
}
p a:hover{text-decoration-color:var(--cyan);}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;}
:focus:not(:focus-visible){outline:none;}
main:focus{outline:none;}

/* ---------- 3. 中文排版层级 ---------- */
h1,h2,h3,h4{font-weight:800;line-height:1.2;letter-spacing:-.02em;color:var(--paper);}
h1{font-size:clamp(2.4rem,5.2vw,4.6rem);}
h2{font-size:clamp(1.55rem,2.7vw,2.35rem);}
h3{font-size:clamp(1.12rem,1.6vw,1.4rem);letter-spacing:-.01em;}
h4{font-size:1.02rem;letter-spacing:0;}
p{max-width:34em;}
strong{font-weight:700;color:var(--paper);}
small{font-size:12.5px;color:var(--mist);}

/* ---------- 4. 文本与布局工具 ---------- */
.mono{
  font-family:var(--font-mono);
  letter-spacing:.06em;
  font-variant-numeric:tabular-nums;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--mist);
}
.eyebrow::before{
  content:"";
  width:26px;
  height:1px;
  background:var(--cyan);
  flex:none;
}

.v-note{
  writing-mode:vertical-rl;
  text-orientation:mixed;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.32em;
  color:var(--mist);
  opacity:.8;
}

.rule{
  height:1px;
  border:0;
  margin:0;
  background:linear-gradient(90deg,var(--line-strong),rgba(242,247,251,0));
}

.wrap{
  width:100%;
  max-width:var(--wrap-max);
  margin-inline:auto;
  padding-inline:var(--pad-x);
}

.section{padding-block:clamp(56px,7vw,104px);}

/* ---------- 5. 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 22px;
  border-radius:8px;
  border:1px solid transparent;
  font-size:14.5px;
  font-weight:600;
  letter-spacing:.03em;
  line-height:1.3;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .28s var(--ease),border-color .28s var(--ease),color .28s var(--ease),box-shadow .28s var(--ease);
}

.btn-primary{
  background:var(--cyan);
  border-color:var(--cyan);
  color:#03231F;
  box-shadow:0 14px 34px -22px rgba(53,240,208,.95);
}
.btn-primary:hover{
  background:var(--paper);
  border-color:var(--violet);
  color:var(--deep);
}

.btn-amber{
  background:var(--amber);
  border-color:var(--amber);
  color:#2A1700;
  box-shadow:0 14px 34px -22px rgba(255,180,77,.9);
}
.btn-amber:hover{
  background:var(--paper);
  border-color:var(--violet);
  color:var(--deep);
}

.btn-ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--paper);
}
.btn-ghost:hover{
  border-color:var(--violet);
  background:rgba(123,92,255,.14);
}

.btn-block{display:flex;width:100%;}
.btn--sm{padding:9px 15px;font-size:12.5px;letter-spacing:.08em;}

/* ---------- 6. 徽标 / 卡片 / 面包屑 / 图片容器 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 13px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--mist);
  white-space:nowrap;
}
.badge--cyan{
  border-color:rgba(53,240,208,.4);
  background:rgba(53,240,208,.08);
  color:var(--cyan);
}
.badge--amber{
  border-color:rgba(255,180,77,.4);
  background:rgba(255,180,77,.08);
  color:var(--amber);
}

.card{
  position:relative;
  padding:28px;
  border:1px solid var(--line);
  border-radius:10px;
  background:linear-gradient(168deg,rgba(12,39,64,.92),rgba(7,26,47,.72));
  box-shadow:inset 0 1px 0 rgba(242,247,251,.05),0 24px 46px -38px rgba(0,0,0,.95);
}
.card--glow{
  border-color:rgba(53,240,208,.28);
  box-shadow:0 0 0 1px rgba(53,240,208,.07),0 26px 64px -38px rgba(53,240,208,.6);
}

.breadcrumb{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.14em;
  color:var(--mist);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;}
.breadcrumb li{display:flex;align-items:center;}
.breadcrumb li + li::before{
  content:"/";
  margin-right:8px;
  color:rgba(169,195,214,.42);
}
.breadcrumb a{color:var(--mist);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb [aria-current="page"]{color:var(--paper);}

.media-frame{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:10px;
  aspect-ratio:16 / 10;
  background:
    radial-gradient(120% 120% at 78% 4%, rgba(123,92,255,.24), transparent 58%),
    linear-gradient(158deg,#0E2C48 0%, var(--deep) 100%);
}
.media-frame > img,
.media-frame > picture,
.media-frame > picture > img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame > picture{display:block;}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right, rgba(242,247,251,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(242,247,251,.05) 1px, transparent 1px);
  background-size:44px 44px;
  mix-blend-mode:overlay;
}
.media-frame--square{aspect-ratio:1 / 1;}
.media-frame--wide{aspect-ratio:21 / 9;}
.media-frame--tall{aspect-ratio:4 / 5;}

/* ---------- 7. 框架式页头 ---------- */
.skip-link{
  position:fixed;
  top:0;
  left:0;
  z-index:300;
  transform:translateY(-160%);
  padding:12px 22px;
  border-radius:0 0 8px 0;
  background:var(--cyan);
  color:#03231F;
  font-size:14px;
  font-weight:700;
  text-decoration:none;
  transition:transform .18s var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible{transform:translateY(0);}

.site-frame{
  position:fixed;
  inset:0 auto 0 0;
  z-index:80;
  width:var(--rail-w);
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:26px;
  padding:28px 22px 24px;
  background:linear-gradient(180deg,rgba(12,39,64,.97),rgba(7,26,47,.97));
  border-right:1px solid var(--line);
}
.site-frame::after{
  content:"";
  position:absolute;
  top:0;
  bottom:0;
  right:-1px;
  width:1px;
  pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(53,240,208,.38) 18%,rgba(123,92,255,.34) 74%,transparent);
}

.frame-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  color:var(--paper);
}
.brand-mark{
  position:relative;
  flex:0 0 38px;
  width:38px;
  height:38px;
  border-radius:10px;
  border:1px solid rgba(53,240,208,.35);
  background:
    radial-gradient(120% 120% at 18% 0%, rgba(53,240,208,.38), transparent 62%),
    linear-gradient(150deg,rgba(123,92,255,.6),rgba(7,26,47,.24));
  box-shadow:inset 0 0 0 1px rgba(7,26,47,.6),0 0 18px -5px rgba(53,240,208,.55);
  transition:box-shadow .28s var(--ease);
}
.brand-mark::before{
  content:"";
  position:absolute;
  inset:9px 8px;
  border:1.5px solid var(--paper);
  border-radius:2px;
  opacity:.85;
  clip-path:polygon(0 0,100% 0,100% 58%,58% 100%,0 100%);
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  width:5px;
  height:5px;
  border-radius:50%;
  transform:translate(-50%,-50%);
  background:var(--cyan);
  box-shadow:0 0 10px var(--cyan);
}
.brand:hover .brand-mark{
  box-shadow:inset 0 0 0 1px rgba(7,26,47,.6),0 0 26px -3px rgba(53,240,208,.8);
}
.brand-text{
  display:flex;
  flex-direction:column;
  gap:2px;
  min-width:0;
}
.brand-line{
  display:block;
  font-size:15.5px;
  font-weight:700;
  line-height:1.25;
  letter-spacing:.04em;
  white-space:nowrap;
}
.brand-sub{
  display:block;
  font-family:var(--font-mono);
  font-size:9.5px;
  line-height:1.2;
  letter-spacing:.2em;
  color:var(--mist);
  opacity:.78;
  white-space:nowrap;
}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:9px 13px;
  border-radius:8px;
  border:1px solid var(--line-strong);
  background:rgba(12,39,64,.82);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.18em;
  cursor:pointer;
  transition:border-color .25s var(--ease),background-color .25s var(--ease);
}
.nav-toggle:hover{border-color:rgba(53,240,208,.55);}
.nav-toggle-bars{
  position:relative;
  display:block;
  width:16px;
  height:2px;
  flex:none;
  background:var(--cyan);
  transition:background-color .22s var(--ease);
}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:2px;
  background:var(--cyan);
  transition:transform .25s var(--ease);
}
.nav-toggle-bars::before{top:-5px;}
.nav-toggle-bars::after{top:5px;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars{background:transparent;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{transform:translateY(5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{transform:translateY(-5px) rotate(-45deg);}

.frame-nav{
  flex:1 1 auto;
  min-height:0;
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  gap:20px;
  scrollbar-width:thin;
  scrollbar-color:rgba(53,240,208,.35) transparent;
}
.nav-caption{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.24em;
  color:var(--mist);
  opacity:.6;
  max-width:none;
}
.nav-list{
  display:flex;
  flex-direction:column;
  gap:2px;
}
.nav-link{
  position:relative;
  display:flex;
  align-items:baseline;
  gap:12px;
  padding:11px 12px 11px 16px;
  border-radius:8px;
  color:var(--mist);
  text-decoration:none;
  transition:color .26s var(--ease),background-color .26s var(--ease);
}
.nav-link::before{
  content:"";
  position:absolute;
  left:0;
  top:12px;
  bottom:12px;
  width:2px;
  border-radius:2px;
  background:var(--cyan);
  opacity:0;
  transition:opacity .26s var(--ease);
}
.nav-link:hover,
.nav-link:focus-visible{
  color:var(--paper);
  background:rgba(53,240,208,.07);
}
.nav-link:hover::before{opacity:.55;}
.nav-link[aria-current="page"]{
  color:var(--paper);
  background:rgba(53,240,208,.09);
}
.nav-link[aria-current="page"]::before{opacity:1;}
.nav-idx{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.1em;
  color:var(--cyan);
  opacity:.5;
  flex:none;
}
.nav-link[aria-current="page"] .nav-idx{opacity:1;}
.nav-name{font-size:14.5px;letter-spacing:.02em;}

.frame-meta{
  display:flex;
  flex-direction:column;
  gap:14px;
  padding-top:18px;
  border-top:1px solid var(--line);
}
.frame-badge{
  display:flex;
  align-items:center;
  gap:9px;
  max-width:none;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--mist);
}
.frame-badge::before{
  content:"";
  flex:none;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 3px rgba(53,240,208,.16),0 0 14px rgba(53,240,208,.8);
}

/* ---------- 8. 页脚 ---------- */
.site-foot{
  position:relative;
  margin-top:clamp(72px,9vw,120px);
  padding:96px 0 30px;
  background:var(--graphite);
  border-top:1px solid var(--line-soft);
  overflow:hidden;
}
.site-foot::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:96px;
  pointer-events:none;
  background:linear-gradient(100deg,rgba(123,92,255,.32) 0%,rgba(53,240,208,.16) 52%,rgba(7,26,47,0) 52.2%);
  clip-path:polygon(0 0,100% 0,100% 0,0 100%);
}

.foot-inner{
  position:relative;
  width:100%;
  max-width:var(--wrap-max);
  margin-inline:auto;
  padding-inline:var(--pad-x);
  display:grid;
  gap:44px 32px;
  grid-template-columns:minmax(200px,1.4fr) repeat(3,minmax(96px,.8fr)) minmax(200px,1.5fr);
}

.foot-brand .brand-line{font-size:16.5px;}
.foot-tagline{
  max-width:none;
  margin-top:14px;
  font-size:13.5px;
  line-height:1.7;
  color:var(--mist);
}
.foot-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:18px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(53,240,208,.34);
  background:rgba(53,240,208,.07);
  color:var(--cyan);
  font-size:11.5px;
  letter-spacing:.13em;
}

.foot-title{
  margin-bottom:16px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.22em;
  color:var(--mist);
  opacity:.72;
}

.foot-list{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.foot-list a{
  font-size:14.5px;
  color:var(--paper);
  opacity:.82;
  text-decoration:none;
  transition:color .22s var(--ease),opacity .22s var(--ease);
}
.foot-list a:hover{color:var(--cyan);opacity:1;}
.foot-muted{
  font-size:14px;
  color:var(--mist);
  opacity:.55;
}

.foot-list--contact{gap:14px;}
.foot-list--contact li{
  display:flex;
  flex-direction:column;
  gap:2px;
  font-size:13.5px;
  line-height:1.6;
}
.foot-k{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.2em;
  color:var(--mist);
  opacity:.6;
}
.foot-v{
  color:var(--paper);
  word-break:break-word;
}

.foot-note{
  max-width:none;
  margin-top:16px;
  font-size:12px;
  line-height:1.75;
  color:var(--mist);
  opacity:.7;
}

.foot-legal{
  position:relative;
  width:100%;
  max-width:var(--wrap-max);
  margin:56px auto 0;
  padding:22px var(--pad-x) 0;
  border-top:1px solid var(--line-soft);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 28px;
  font-size:12.5px;
  letter-spacing:.04em;
  color:var(--mist);
}
.foot-copy{max-width:none;}
.foot-icp{max-width:none;color:var(--mist);}
.foot-legal-links{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
}
.foot-legal-links a{
  color:var(--mist);
  text-decoration:none;
  transition:color .22s var(--ease);
}
.foot-legal-links a:hover{color:var(--cyan);}

/* ---------- 9. 滚动进度条 ---------- */
body::after{
  content:"";
  position:fixed;
  top:0;
  left:var(--rail-w);
  right:0;
  height:2px;
  z-index:120;
  pointer-events:none;
  transform:scaleX(var(--scroll-progress,0));
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
}

/* ---------- 10. 滚动显现 ---------- */
[data-reveal]{
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
}
html.js [data-reveal]{
  opacity:0;
  transform:translateY(16px);
}
html.js [data-reveal].is-in{
  opacity:1;
  transform:translateY(0);
}

/* ---------- 11. 响应式：平板 ---------- */
@media (max-width:1279px){
  :root{--pad-x:26px;}
  .foot-inner{grid-template-columns:repeat(2,minmax(0,1fr));}
  .foot-brand{grid-column:1 / -1;}
}

/* ---------- 12. 响应式：移动端框架导航 ---------- */
@media (max-width:899px){
  :root{--pad-x:20px;}

  body{
    padding-left:0;
    font-size:16.5px;
  }

  body::after{left:0;height:2px;}

  .site-frame{
    position:sticky;
    top:0;
    left:auto;
    right:auto;
    bottom:auto;
    z-index:100;
    width:100%;
    gap:0;
    padding:13px 18px 15px;
    border-right:0;
    border-bottom:1px solid var(--line);
    background:linear-gradient(180deg,rgba(9,30,50,.98),rgba(7,26,47,.96));
    backdrop-filter:blur(10px);
  }
  .site-frame::after{display:none;}

  .frame-top{min-height:40px;}

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

  .frame-nav{
    display:none;
    flex:0 0 auto;
    overflow-y:auto;
    max-height:calc(100dvh - 160px);
    padding-top:18px;
    margin-top:14px;
    border-top:1px solid var(--line);
    gap:16px;
  }
  .site-frame[data-open="true"] .frame-nav{display:flex;}

  .frame-meta{display:none;}
  .site-frame[data-open="true"] .frame-meta{display:flex;margin-top:16px;}

  .nav-link{padding:13px 12px 13px 15px;}
  .nav-name{font-size:15px;}

  .foot-inner{gap:34px 24px;}
  .site-foot{padding-top:76px;margin-top:72px;}
  .site-foot::before{height:76px;}
  .foot-legal{margin-top:36px;justify-content:flex-start;}
}

@media (max-width:640px){
  .foot-inner{grid-template-columns:1fr;}
  .foot-brand{grid-column:auto;}
  .brand-line{font-size:15px;}
  .foot-legal{gap:10px 20px;font-size:12px;}
}

/* ---------- 13. 减少动效 ---------- */
@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-reveal]{
    opacity:1;
    transform:none;
  }
  body::after{
    transform:scaleX(1);
    opacity:.35;
  }
}