/* ============================================================
   鹰盾调查 · 设计系统 base
   悬疑 noir + 科幻 HUD + 高端留白
   仅含令牌、重置、排版、通用组件（跨端共用）
   ============================================================ */

:root{
  /* 表面 */
  --void:#121821;
  --ink:#151c26;
  --panel:#1b2330;
  --panel-2:#212b39;
  --panel-3:#28323f;

  /* 线 */
  --line:rgba(150,180,220,.13);
  --line-2:rgba(150,180,220,.22);
  --line-3:rgba(150,180,220,.34);

  /* 文字 */
  --text:#d8dfea;
  --text-2:#bcc6d4;
  --muted:#a8b3c2;
  --muted-2:#8491a6;

  /* 强调 */
  --cyan:#6fe3d2;
  --cyan-dim:#2d8f84;
  --copper:#d8ab6b;
  --copper-deep:#a97b39;
  --danger:#e2685c;

  /* 阴影 */
  --shadow-lg:0 40px 90px -50px rgba(0,0,0,.95);
  --shadow-md:0 24px 60px -40px rgba(0,0,0,.9);
  --glow:0 0 0 1px rgba(111,227,210,.16), 0 30px 80px -40px rgba(0,0,0,.95);

  /* 排版 */
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",STSong,Georgia,serif;
  --sans:"Inter","HarmonyOS Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:"SFMono-Regular",ui-monospace,Menlo,Consolas,"Liberation Mono",monospace;

  --wrap:1220px;
  --r-s:6px;
  --r-m:12px;
  --r-l:20px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.22}
p{margin:0}
ul,ol,dl,dd{margin:0;padding:0}
li{list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:2px}

/* ---------- 底噪 / 网格 / 扫描线 ---------- */
.grain{
  position:fixed;inset:0;z-index:3;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}
.scanline{
  position:fixed;left:0;right:0;top:0;height:180px;z-index:4;pointer-events:none;
  background:linear-gradient(180deg,rgba(111,227,210,.05),transparent 70%);
  transform:translateY(-200px);
  animation:scan 9s linear infinite;
}
@keyframes scan{0%{transform:translateY(-220px)}100%{transform:translateY(105vh)}}

/* ---------- 布局基元 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.wrap--wide{max-width:1420px}
.section{position:relative;padding:96px 0}
.section--tight{padding:64px 0}
.hr-line{height:1px;background:linear-gradient(90deg,transparent,var(--line-2),transparent);border:0;margin:0}

/* ---------- 小标签 / 编号 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor;opacity:.7}
.serif{font-family:var(--serif);font-weight:600;letter-spacing:.01em}
.mono{font-family:var(--mono)}

/* 章节头：编号 + 标题 + 说明 */
.sec-head{position:relative;margin-bottom:44px}
.sec-head__no{
  font-family:var(--mono);font-size:11px;letter-spacing:.3em;color:var(--copper);
  display:block;margin-bottom:14px;
}
.sec-head__no b{color:var(--copper);font-weight:600}
.sec-head h2{
  font-family:var(--serif);font-size:clamp(24px,3.4vw,40px);letter-spacing:-.01em;
  color:var(--text);
}
.sec-head p{margin-top:14px;max-width:60ch;color:var(--muted);font-size:15.5px}
.sec-head--split{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;flex-wrap:wrap}

/* HUD 角标卡片 */
.hud{position:relative;background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line);border-radius:var(--r-m)}
.hud::before,.hud::after{
  content:"";position:absolute;width:12px;height:12px;border:1px solid var(--line-3);pointer-events:none;
}
.hud::before{top:-1px;left:-1px;border-right:0;border-bottom:0;border-top-left-radius:var(--r-m)}
.hud::after{bottom:-1px;right:-1px;border-left:0;border-top:0;border-bottom-right-radius:var(--r-m)}

/* 徽标 / 状态 */
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:5px 11px;border-radius:999px;
  border:1px solid var(--line-2);background:rgba(255,255,255,.02);
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--text-2);
}
.chip i{width:5px;height:5px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
.chip--copper{border-color:rgba(216,171,107,.3);color:var(--copper)}
.chip--copper i{background:var(--copper);box-shadow:0 0 8px var(--copper)}
.chip--danger{border-color:rgba(226,104,92,.34);color:#f0a49b}
.chip--danger i{background:var(--danger);box-shadow:0 0 8px var(--danger)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:var(--r-s);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  transition:transform .18s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
  white-space:nowrap;
}
.btn svg{width:17px;height:17px;flex:0 0 auto;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.btn--primary{
  color:#04120f;
  background:linear-gradient(180deg,#8df0e0,var(--cyan));
  box-shadow:0 1px 0 rgba(255,255,255,.4) inset,0 18px 40px -22px rgba(111,227,210,.85);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 1px 0 rgba(255,255,255,.5) inset,0 26px 50px -22px rgba(111,227,210,.95)}
.btn--ghost{
  color:var(--text);border-color:var(--line-3);background:rgba(255,255,255,.02);
  backdrop-filter:blur(6px);
}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
.btn--copper{
  color:#1a1206;background:linear-gradient(180deg,#f0cd97,var(--copper));
  box-shadow:0 20px 44px -26px rgba(216,171,107,.9);
}
.btn--copper:hover{transform:translateY(-2px)}
.btn--block{width:100%}
.btn--sm{padding:10px 18px;font-size:14px}

/* ---------- 表单 ---------- */
.field{display:block;margin-bottom:16px}
.field__label{
  display:block;font-family:var(--mono);font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted);margin-bottom:8px;
}
.field input,.field select,.field textarea{
  width:100%;padding:13px 14px;border-radius:var(--r-s);
  background:rgba(255,255,255,.03);border:1px solid var(--line-2);
  color:var(--text);font-family:var(--sans);font-size:15px;
  transition:border-color .2s ease,background .2s ease;
}
.field textarea{min-height:110px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#6f7b8f}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);background:rgba(111,227,210,.05);
}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239aa6ba' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.field select option{color:#1a1a1a;background:#fff}
.form-note{font-size:12.5px;color:var(--muted-2);line-height:1.6}

/* ---------- 图片框 ---------- */
.frame{position:relative;overflow:hidden;border-radius:var(--r-m);background:var(--panel-2)}
.frame img{width:100%;height:100%;object-fit:cover;filter:saturate(.85) contrast(1.06) brightness(.92)}
.frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,6,10,0) 30%,rgba(4,6,10,.82));pointer-events:none}

/* ---------- 通用网格 ---------- */
.grid{display:grid;gap:18px}

/* 滚动入场 */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
[data-reveal].is-in{opacity:1;transform:none}

/* 只给读屏 */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{
  position:absolute;left:12px;top:-60px;z-index:99;padding:10px 16px;border-radius:6px;
  background:var(--cyan);color:#04120f;font-weight:600;transition:top .2s ease;
}
.skip-link:focus{top:12px}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  [data-reveal]{opacity:1;transform:none}
  .scanline{display:none}
}

/* ---------- 内联图标的兜底尺寸（所有图标统一 24 网格；下方再按组件细化） ---------- */
svg[viewBox="0 0 24 24"]{width:1em;height:1em;flex:0 0 auto;vertical-align:-.12em}

/* ---------- 图标尺寸（跨端统一，避免移动端 SVG 使用默认 300×150） ---------- */
.logo__mark svg{width:100%;height:100%;display:block}
.hero__note svg{width:14px;height:14px;stroke:var(--cyan);fill:none;stroke-width:1.6}
.svc__ico svg{width:21px;height:21px;stroke:var(--cyan);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.svc__more svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:1.8;transition:transform .25s ease}
.versus__h svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.7}
.cta__list svg{width:15px;height:15px;stroke:var(--cyan);fill:none;stroke-width:2}
.cta__way svg{width:16px;height:16px;stroke:var(--cyan);fill:none;stroke-width:1.6}
.legal__r svg{width:16px;height:16px;flex:0 0 auto;stroke:var(--cyan);fill:none;stroke-width:1.8}
.faq__list summary svg{width:15px;height:15px;stroke:var(--muted);fill:none;stroke-width:1.6;transition:transform .3s ease,stroke .3s ease}
.side-cta svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.6}
.nav__drop svg{width:14px;height:14px}

/* ---------- 页头结构（两端共用，尺寸由各自断点覆盖） ---------- */
.hd__in{display:flex;align-items:center}
.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.logo__mark{display:grid;place-items:center}
.logo__txt b{display:block;font-family:var(--serif);font-size:17px;letter-spacing:.08em;color:var(--text)}
.logo__txt span{display:block;font-family:var(--mono);font-size:9px;letter-spacing:.28em;color:var(--muted-2);margin-top:1px}
.hd__cta{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.hd__tel{display:flex;flex-direction:column;line-height:1.2;text-align:right}
.hd__tel span{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--muted-2)}
.hd__tel b{font-family:var(--mono);font-size:16px;letter-spacing:.04em;color:var(--text)}
.hero__badge{display:flex;align-items:center;flex-wrap:wrap}
.hero__stats{display:grid}

/* 页头副行：座机 */
.hd__tel em{display:block;font-family:var(--mono);font-size:12px;font-style:normal;letter-spacing:.06em;color:var(--muted-2);margin-top:2px}

/* 联系信息：只让标签大写，值保持原样（邮箱区分大小写观感） */
.contact-item b,.contact-item em,.cta__way b,.ft__contact b,.aside-card b{text-transform:none}

/* ============================================================
   轮播（Banner）
   ============================================================ */
.banner{position:absolute;inset:0;z-index:0;overflow:hidden;background:var(--void)}
.banner__slide{position:absolute;inset:0;opacity:0;transition:opacity 1.1s ease;will-change:opacity}
.banner__slide.is-on{opacity:1}
.banner__slide img{width:100%;height:100%;object-fit:cover;filter:saturate(.76) contrast(1.08) brightness(.6)}
.banner__slide.is-on img{animation:kb 12s ease-out both}
@keyframes kb{from{transform:scale(1.06)}to{transform:scale(1)}}
.banner__veil{
  position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(90deg,rgba(4,6,10,.95) 0%,rgba(4,6,10,.86) 34%,rgba(4,6,10,.52) 62%,rgba(4,6,10,.88) 100%),
    linear-gradient(180deg,rgba(4,6,10,.92) 0%,rgba(4,6,10,.2) 30%,rgba(4,6,10,.55) 74%,rgba(4,6,10,.96) 100%);
}

/* 文案层：只有当前页占位，避免高度跳动 */
.bslides{position:relative;z-index:2;min-height:430px}
.bslide{position:absolute;inset:0;opacity:0;visibility:hidden;transform:translateY(16px);
  transition:opacity .5s ease,transform .5s ease,visibility .5s}
.bslide.is-on{position:relative;opacity:1;visibility:visible;transform:none}

/* 控件 */
.bctrl{display:flex;align-items:center;gap:16px;margin-top:36px;position:relative;z-index:3;flex-wrap:wrap}
.barrow{
  width:40px;height:40px;display:grid;place-items:center;border-radius:50%;cursor:pointer;
  border:1px solid var(--line-3);background:rgba(10,15,23,.55);color:var(--text-2);
  backdrop-filter:blur(8px);transition:all .22s ease;
}
.barrow:hover{border-color:var(--cyan);color:var(--cyan)}
.barrow svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.8}
.bdots{display:flex;align-items:center;gap:8px}
.bdots button{
  width:26px;height:4px;padding:0;border:0;border-radius:3px;cursor:pointer;
  background:rgba(255,255,255,.22);transition:all .3s ease;
}
.bdots button:hover{background:rgba(255,255,255,.42)}
.bdots button[aria-current="true"]{background:var(--cyan);box-shadow:0 0 12px rgba(111,227,210,.8);width:36px}
.bcount{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--muted-2)}
.bcount b{color:var(--cyan);font-weight:400}
.bpause{
  margin-left:auto;display:inline-flex;align-items:center;gap:7px;cursor:pointer;
  padding:7px 12px;border-radius:999px;border:1px solid var(--line-2);
  background:rgba(10,15,23,.5);color:var(--muted-2);font-family:var(--mono);
  font-size:10px;letter-spacing:.14em;transition:all .2s ease;
}
.bpause:hover{color:var(--cyan);border-color:var(--cyan)}
.bpause svg{width:11px;height:11px;stroke:currentColor;fill:none;stroke-width:2}

/* 子页静态 Hero 背景轮换 */
.pg-hero--banner{padding-top:56px}
.pg-dots{
  position:absolute;right:24px;bottom:22px;z-index:3;display:flex;align-items:center;gap:7px;
}
.pg-dots button{
  width:22px;height:3px;padding:0;border:0;border-radius:2px;cursor:pointer;
  background:rgba(255,255,255,.25);transition:all .3s ease;
}
.pg-dots button[aria-current="true"]{background:var(--cyan);width:32px;box-shadow:0 0 10px rgba(111,227,210,.7)}

@media (prefers-reduced-motion:reduce){
  .banner__slide.is-on img{animation:none}
}

/* 遮罩必须在图片之上（DOM 顺序之外的保险） */
.banner__slide{position:absolute;inset:0;z-index:1}
.banner__veil{position:absolute;inset:0;z-index:2}

/* 页脚：XML 地图链接组 */
.ft__map{display:inline-flex;align-items:center;gap:0;font-family:var(--mono);font-size:12px;letter-spacing:.04em}
.ft__map a{padding-bottom:1px;border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease}
.ft__map a:not(:last-child)::after{content:"·";display:inline-block;margin:0 9px;opacity:.45}
.ft__map a:hover{color:var(--cyan);border-bottom-color:rgba(111,227,210,.5)}

/* XML 地图链接组：比版权信息稍亮，便于发现 */
.ft__map a{color:var(--text-2)}
.ft__map a:hover{color:var(--cyan)}