/* ==========================================================================
   中科量景 ARSVIEW · 官网样式表
   Palette: 品牌深海军蓝（取自 logo #003466）+ 科技青
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root{
  --brand-900:#001E3D;
  --brand-800:#003466;   /* logo 主色 */
  --brand-700:#004A8F;
  --brand-600:#0A66B0;
  --brand-500:#1178C4;
  --cyan-400:#21A7E0;
  --cyan-300:#6FC9EF;

  --ink-900:#0A1A30;
  --ink-700:#22364F;
  --ink-500:#5B6E88;
  --ink-400:#8494AA;

  --line:#E3E9F1;
  --line-2:#CFDAE8;
  --bg:#FFFFFF;
  --bg-soft:#F5F8FC;
  --bg-mid:#EDF3FA;

  --grad-brand:linear-gradient(135deg,var(--brand-800) 0%,var(--brand-600) 55%,var(--cyan-400) 130%);
  --grad-dark:linear-gradient(160deg,#04142B 0%,var(--brand-900) 45%,#06325F 100%);

  --shadow-sm:0 1px 2px rgba(10,26,48,.06),0 2px 8px rgba(10,26,48,.05);
  --shadow-md:0 4px 12px rgba(10,26,48,.07),0 12px 32px rgba(10,26,48,.07);
  --shadow-lg:0 18px 48px rgba(3,26,54,.16);

  --r-sm:6px; --r-md:12px; --r-lg:18px; --r-xl:26px;
  --wrap:1220px;
  --header-h:76px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --font-num:"SF Pro Display","Helvetica Neue",Arial,sans-serif;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px)}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.75;
  color:var(--ink-700);background:var(--bg);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img,svg,picture{max-width:100%;display:block}
img{height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
address{font-style:normal}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--cyan-400);outline-offset:3px;border-radius:4px}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--brand-800);color:#fff;padding:12px 20px;border-radius:0 0 var(--r-sm) 0;
}
.skip-link:focus{left:0}

/* 仅供屏幕阅读器 */
.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;
}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:24px}

/* ---------- 3. Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;font-size:15px;font-weight:600;
  letter-spacing:.02em;transition:all .28s var(--ease);white-space:nowrap;
  border:1px solid transparent;position:relative;overflow:hidden;
}
.btn-primary{background:var(--brand-700);color:#fff;box-shadow:0 8px 22px rgba(0,74,143,.28)}
.btn-primary:hover{background:var(--brand-600);transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,74,143,.36)}
.btn-ghost{color:#fff;border-color:rgba(255,255,255,.45);background:rgba(255,255,255,.06);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.8);transform:translateY(-2px)}
.btn-sm{padding:10px 22px;font-size:14px}
.btn-block{width:100%}

.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--cyan-300);font-size:14.5px}
.link-arrow span{transition:transform .28s var(--ease)}
.link-arrow:hover span{transform:translateX(5px)}

/* ---------- 4. Header ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  height:var(--header-h);
  transition:background .35s var(--ease),box-shadow .35s var(--ease),height .35s var(--ease);
}
.site-header::after{
  content:"";position:absolute;inset:auto 0 0 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
  transition:opacity .35s var(--ease);
}
.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}

.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:48px;height:48px;flex:none;display:grid;place-items:center;
  background:#fff;border-radius:50%;box-shadow:0 4px 14px rgba(0,20,46,.22);
  transition:transform .35s var(--ease);
}
.brand-mark img{width:38px;height:36px;object-fit:contain}
.brand:hover .brand-mark{transform:rotate(-6deg) scale(1.05)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:19px;font-weight:700;color:#fff;letter-spacing:.06em;transition:color .35s var(--ease)}
.brand-text em{font-size:11px;font-style:normal;color:rgba(255,255,255,.66);letter-spacing:.09em;transition:color .35s var(--ease)}

.nav{display:flex;align-items:center;gap:14px}
.nav ul{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;display:block;padding:9px 18px;border-radius:999px;
  font-size:15.5px;font-weight:500;color:rgba(255,255,255,.86);
  transition:color .3s var(--ease),background .3s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:3px;width:0;height:2px;border-radius:2px;
  background:var(--cyan-400);transform:translateX(-50%);transition:width .32s var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.1)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{width:22px}
.nav-cta{margin-left:8px}

/* scrolled state —— 切换为浅色玻璃拟态 */
.site-header.is-scrolled{
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(18px);
  -webkit-backdrop-filter:saturate(180%) blur(18px);
  box-shadow:0 2px 20px rgba(10,26,48,.09);
  height:66px;
}
.site-header.is-scrolled::after{opacity:0}
.site-header.is-scrolled .brand-text strong{color:var(--brand-900)}
.site-header.is-scrolled .brand-text em{color:var(--ink-500)}
.site-header.is-scrolled .brand-mark{box-shadow:0 2px 10px rgba(10,26,48,.14)}
.site-header.is-scrolled .nav-link{color:var(--ink-700)}
.site-header.is-scrolled .nav-link:hover{color:var(--brand-700);background:var(--bg-mid)}
.site-header.is-scrolled .nav-link.is-active{color:var(--brand-700)}
.site-header.is-scrolled .nav-toggle span{background:var(--ink-900)}

/* 移动端菜单按钮 */
.nav-toggle{
  display:none;width:44px;height:44px;flex-direction:column;justify-content:center;gap:5px;
  padding:0 10px;border-radius:10px;
}
.nav-toggle span{
  display:block;height:2px;width:100%;border-radius:2px;background:#fff;
  transition:transform .3s var(--ease),opacity .25s var(--ease),background .3s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 5. Hero ---------- */
.hero{
  position:relative;min-height:100svh;min-height:100vh;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding-top:calc(var(--header-h) + 40px);padding-bottom:0;
  overflow:hidden;background:var(--brand-900);isolation:isolate;
}
.hero-media{position:absolute;inset:0;z-index:-2}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:60% 42%}
.hero-scrim{
  position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(to top,rgba(3,17,38,.96) 0%,rgba(3,17,38,.88) 22%,rgba(4,24,52,.62) 48%,rgba(5,32,66,.34) 72%,rgba(4,26,54,.42) 100%),
    linear-gradient(105deg,rgba(2,14,32,.86) 0%,rgba(2,16,36,.42) 46%,rgba(6,34,68,.14) 100%);
}
/* Hero 文字块：与页面主容器（.wrap）严格对齐居中，
   不再左贴视口边 */
.hero-inner{padding-block:48px 20px;position:relative}

.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.22em;
  color:var(--cyan-300);text-transform:uppercase;
  padding:7px 18px;border:1px solid rgba(111,201,239,.42);border-radius:999px;
  background:rgba(33,167,224,.1);backdrop-filter:blur(6px);margin-bottom:26px;
}
.eyebrow-dark{
  color:var(--brand-600);border-color:rgba(10,102,176,.28);
  background:rgba(10,102,176,.07);letter-spacing:.18em;
}
.hero-title{
  font-size:clamp(30px,4.3vw,56px);line-height:1.16;font-weight:800;color:#fff;
  letter-spacing:.01em;text-shadow:0 2px 30px rgba(0,0,0,.34);text-wrap:balance;
}
.hero-title .dot{color:var(--cyan-400);margin-inline:.18em;font-weight:400}
.hero-title .nb{white-space:nowrap}
.hero-lead{
  margin-top:24px;max-width:640px;font-size:clamp(15px,1.35vw,17.5px);
  line-height:1.9;color:rgba(233,243,252,.86);text-shadow:0 1px 14px rgba(0,0,0,.3);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}

/* Hero 数据条 */
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  margin-top:58px;margin-bottom:0;
  border-top:1px solid rgba(255,255,255,.17);
  background:linear-gradient(to top,rgba(3,17,38,.5),rgba(3,17,38,0));
  position:relative;left:0;right:0;
}
.hero-stats li{
  padding:26px 22px 30px;border-right:1px solid rgba(255,255,255,.13);
  display:flex;flex-direction:column;gap:4px;
}
.hero-stats li:last-child{border-right:0}
.hero-stats b{
  font-family:var(--font-num);font-size:clamp(28px,3.4vw,42px);font-weight:700;
  color:#fff;line-height:1;letter-spacing:-.02em;
}
.hero-stats b .suffix{font-size:.52em;font-weight:600;color:var(--cyan-300);margin-left:3px}
.hero-stats span{font-size:13.5px;color:rgba(226,238,250,.7);letter-spacing:.04em}

/* ---------- 6. Marquee ---------- */
.marquee{
  overflow:hidden;background:var(--brand-900);border-top:1px solid rgba(255,255,255,.08);
  border-bottom:1px solid rgba(255,255,255,.08);padding:15px 0;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 9%,#000 91%,transparent);
}
.marquee-track{display:flex;width:max-content;animation:marquee 42s linear infinite}
.marquee-track span{
  padding-inline:30px;font-size:14px;letter-spacing:.13em;
  color:rgba(190,214,236,.72);position:relative;white-space:nowrap;
}
.marquee-track span::after{
  content:"";position:absolute;right:0;top:50%;width:4px;height:4px;border-radius:50%;
  background:var(--cyan-400);opacity:.6;transform:translateY(-50%);
}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- 7. Section base ---------- */
.section{padding:clamp(72px,9vw,124px) 0;position:relative}
.section-alt{background:var(--bg-soft);border-block:1px solid var(--line)}
.section-dark{background:var(--grad-dark);color:#fff;overflow:hidden}
.section-dark::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(111,201,239,.16) 1px,transparent 1px);
  background-size:34px 34px;opacity:.55;
}

.section-head{max-width:760px;margin-bottom:clamp(42px,5vw,64px);position:relative}
.section-head .eyebrow{margin-bottom:20px}
.section-title{
  font-size:clamp(27px,3.6vw,44px);line-height:1.24;font-weight:800;
  color:var(--ink-900);letter-spacing:-.01em;
}
.section-title::after{
  content:"";display:block;width:52px;height:4px;border-radius:3px;
  background:var(--grad-brand);margin-top:20px;
}
.section-sub{margin-top:20px;font-size:16.5px;line-height:1.9;color:var(--ink-500)}
.section-head-dark .section-title{color:#fff}
.section-head-dark .section-sub{color:rgba(203,222,240,.78)}
.section-head-dark .eyebrow{color:var(--cyan-300);border-color:rgba(111,201,239,.4);background:rgba(33,167,224,.12)}

/* ---------- 8. 关于我们 ---------- */
.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.about-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:38px 32px 34px;transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);
  overflow:hidden;
}
.about-card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:3px;background:var(--grad-brand);
  transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease);
}
.about-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--line-2)}
.about-card:hover::before{transform:scaleX(1)}
.about-idx{
  font-family:var(--font-num);font-size:34px;font-weight:700;line-height:1;
  color:#D5E0EE;letter-spacing:-.03em;display:block;margin-bottom:16px;
  transition:color .4s var(--ease);
}
.about-card:hover .about-idx{color:var(--brand-500)}
.about-card h3{font-size:20px;font-weight:700;color:var(--ink-900);margin-bottom:14px}
.about-card p{font-size:15.5px;line-height:1.85;color:var(--ink-500)}
.about-card strong{color:var(--brand-700);font-weight:700}

.ticks{display:grid;gap:10px;margin-top:4px}
.ticks li{position:relative;padding-left:24px;font-size:15.5px;color:var(--ink-500);line-height:1.7}
.ticks li::before{
  content:"";position:absolute;left:2px;top:10px;width:7px;height:7px;border-radius:2px;
  background:var(--grad-brand);transform:rotate(45deg);
}
.ticks-inline{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin-top:22px}
.ticks-inline li{font-size:15px;color:var(--ink-700);font-weight:500}

.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.chip-row li{
  font-size:13.5px;padding:5px 14px;border-radius:999px;
  background:var(--bg-mid);color:var(--brand-700);font-weight:600;letter-spacing:.02em;
}

.duo-visual{
  margin:clamp(38px,4.6vw,60px) 0 0;border-radius:var(--r-xl);overflow:hidden;
  position:relative;box-shadow:var(--shadow-lg);background:var(--brand-900);
}
.duo-visual img{width:100%;aspect-ratio:16/6.4;object-fit:cover}
.duo-visual figcaption{
  position:absolute;inset:auto 0 0 0;padding:34px 40px;
  background:linear-gradient(to top,rgba(2,14,32,.94),rgba(2,14,32,.6) 55%,transparent);
  color:#fff;display:flex;flex-direction:column;gap:6px;
}
.duo-visual figcaption b{font-size:22px;font-weight:700;letter-spacing:.04em}
.duo-visual figcaption span{font-size:15px;color:rgba(214,230,246,.82);max-width:640px}

/* ---------- 9. 服务卡片 ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px}
.svc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .45s var(--ease),box-shadow .45s var(--ease),border-color .45s var(--ease);
}
.svc-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-lg);border-color:transparent}
.svc-media{position:relative;overflow:hidden;aspect-ratio:16/8.4;background:var(--brand-900)}
.svc-media img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.svc-card:hover .svc-media img{transform:scale(1.07)}
.svc-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(0,30,61,.5) 0%,rgba(0,30,61,.06) 55%,transparent 100%);
}
.svc-tag{
  position:absolute;top:18px;left:20px;z-index:2;
  width:42px;height:42px;display:grid;place-items:center;border-radius:12px;
  background:rgba(255,255,255,.94);color:var(--brand-800);
  font-size:19px;font-weight:800;box-shadow:0 6px 18px rgba(0,20,46,.26);
  letter-spacing:.02em;
}
.svc-body{padding:30px 32px 34px;flex:1;display:flex;flex-direction:column}
.svc-body h3{font-size:22px;font-weight:700;color:var(--ink-900);letter-spacing:.01em}
.svc-body h3::after{
  content:"";display:block;width:34px;height:3px;border-radius:2px;margin-top:12px;
  background:var(--grad-brand);
}
.svc-desc{margin-top:16px;font-size:15.5px;line-height:1.85;color:var(--ink-500)}
.svc-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.svc-list li{
  font-size:13.5px;font-weight:500;padding:6px 14px;border-radius:8px;
  background:var(--bg-soft);border:1px solid var(--line);color:var(--ink-700);
  transition:all .25s var(--ease);
}
.svc-card:hover .svc-list li{background:#fff;border-color:var(--line-2)}
.svc-list li:hover{background:var(--brand-800);border-color:var(--brand-800);color:#fff}

/* ---------- 10. 服务优势 ---------- */
.adv-list{display:grid;gap:clamp(28px,3.4vw,44px)}
.adv-item{
  display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(28px,4vw,58px);align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:clamp(20px,2.4vw,26px);overflow:hidden;
  transition:box-shadow .45s var(--ease),border-color .45s var(--ease);
}
.adv-item:hover{box-shadow:var(--shadow-md);border-color:var(--line-2)}
.adv-item-rev .adv-media{order:2}
.adv-media{border-radius:var(--r-lg);overflow:hidden;aspect-ratio:16/10;background:var(--brand-900)}
.adv-media img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.adv-item:hover .adv-media img{transform:scale(1.05)}
.adv-body{padding:clamp(10px,1.6vw,26px) clamp(10px,1.8vw,30px)}
.adv-no{
  display:inline-block;font-family:var(--font-num);font-size:13px;font-weight:700;
  letter-spacing:.16em;color:var(--brand-600);padding:5px 14px;border-radius:999px;
  background:rgba(10,102,176,.08);margin-bottom:18px;
}
.adv-body h3{font-size:clamp(21px,2.3vw,28px);font-weight:800;color:var(--ink-900)}
.adv-body > p{margin-top:16px;font-size:16px;line-height:1.9;color:var(--ink-500)}
.adv-body strong{color:var(--brand-700);font-weight:700}

/* ---------- 11. 行业应用 ---------- */
.ind-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative;
}
.ind-card{
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.13);
  border-radius:var(--r-lg);padding:28px 26px 30px;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  transition:transform .4s var(--ease),background .4s var(--ease),border-color .4s var(--ease);
  position:relative;overflow:hidden;
}
.ind-card::after{
  content:"";position:absolute;right:-30px;bottom:-30px;width:90px;height:90px;border-radius:50%;
  background:radial-gradient(circle,rgba(33,167,224,.34),transparent 70%);
  opacity:0;transition:opacity .45s var(--ease);
}
.ind-card:hover{transform:translateY(-6px);background:rgba(255,255,255,.1);border-color:rgba(111,201,239,.42)}
.ind-card:hover::after{opacity:1}
.ind-card h3{font-size:18px;font-weight:700;color:#fff;margin-bottom:10px;position:relative}
.ind-card p{font-size:14px;line-height:1.75;color:rgba(199,219,238,.76);position:relative}
.ind-card-cta{
  background:linear-gradient(135deg,rgba(10,102,176,.4),rgba(33,167,224,.2));
  border-color:rgba(111,201,239,.36);display:flex;flex-direction:column;gap:14px;
}
.ind-card-cta .link-arrow{margin-top:auto}

/* ---------- 12. 联系我们 ---------- */
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.contact-card{
  display:flex;gap:18px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 28px;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.contact-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--line-2)}
.c-ico{
  width:46px;height:46px;flex:none;display:grid;place-items:center;border-radius:13px;
  background:var(--grad-brand);color:#fff;
}
.c-ico svg{width:22px;height:22px}
.c-body{min-width:0;display:flex;flex-direction:column}
.c-body b{display:block;font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--ink-400);margin-bottom:8px}
.c-body a{font-size:18px;font-weight:700;color:var(--ink-900);transition:color .25s var(--ease);overflow-wrap:anywhere}
.c-body a:hover{color:var(--brand-600)}
/* keep-all 让中文只在 <wbr> 标注处换行，避免「创业大/街」这类拆词；
   overflow-wrap 兜底：万一单段仍超宽则强制断行，不会溢出 */
.c-body address{font-size:15.5px;font-weight:600;color:var(--ink-900);line-height:1.65;word-break:keep-all;overflow-wrap:anywhere}
.c-meta{display:block;margin-top:8px;font-size:13.5px;color:var(--ink-400);letter-spacing:.02em}
.c-link{margin-top:12px;font-size:14px!important;font-weight:600!important;color:var(--brand-600)!important}
.c-link:hover{color:var(--brand-800)!important;text-decoration:underline}

/* ---- 12b. 微信咨询面板 ---- */
.wx-panel{
  display:grid;grid-template-columns:auto 1fr;
  gap:clamp(26px,3.4vw,48px);align-items:center;
  margin-top:22px;padding:clamp(24px,3vw,36px);
  background:linear-gradient(180deg,#F3FAF5 0%,#F5F8FC 100%);
  border:1px solid rgba(7,193,96,.22);border-radius:var(--r-xl);
}
.qr-thumb{
  display:flex;flex-direction:column;align-items:center;flex:none;
  width:166px;padding:9px;background:#fff;
  border:1px solid var(--line-2);border-radius:14px;box-shadow:var(--shadow-sm);
  cursor:zoom-in;text-align:center;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.qr-thumb img{display:block;width:146px;height:146px;border-radius:8px}
.qr-hint{
  display:flex;align-items:center;justify-content:center;gap:5px;
  width:100%;padding-top:8px;font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--ink-400);transition:color .25s var(--ease);
}
.qr-hint svg{width:13px;height:13px;flex:none}
.qr-thumb:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(7,193,96,.55)}
.qr-thumb:hover .qr-hint,.qr-thumb:focus-visible .qr-hint{color:#078B45}
.qr-thumb:focus-visible{outline:2px solid #07C160;outline-offset:3px}

.wx-kicker{font-size:12.5px;font-weight:600;letter-spacing:.18em;color:var(--ink-400)}
.wx-id-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px 16px;margin-top:6px}
.wx-id{
  font-family:var(--font-num);font-size:clamp(26px,3vw,34px);
  font-weight:700;color:var(--ink-900);letter-spacing:.02em;line-height:1.2;
  user-select:all;-webkit-user-select:all;
}
.wx-note{
  display:inline-block;margin-top:14px;padding:5px 16px;
  font-size:14px;font-weight:700;color:#078B45;
  background:#fff;border:1px solid rgba(7,193,96,.3);border-radius:999px;
}
.wx-desc{margin-top:16px;max-width:520px;font-size:15px;line-height:1.85;color:var(--ink-500)}

/* ---- 12b-2. 一键复制号码 ---- */
.copy-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;flex:none;
  padding:9px 17px;border-radius:999px;
  font-size:13.5px;font-weight:600;letter-spacing:.01em;
  color:#078B45;background:#fff;border:1px solid rgba(7,193,96,.36);
  transition:background .25s var(--ease),color .25s var(--ease),
             border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.copy-btn svg{width:14px;height:14px;flex:none}
.copy-btn .i-done{display:none}
.copy-btn:hover{background:#078B45;color:#fff;border-color:#078B45;transform:translateY(-2px);box-shadow:0 6px 16px rgba(7,139,69,.26)}
.copy-btn:active{transform:translateY(0)}
.copy-btn.is-copied{background:#078B45;color:#fff;border-color:#078B45;box-shadow:0 6px 16px rgba(7,139,69,.26)}
.copy-btn.is-copied .i-copy{display:none}
.copy-btn.is-copied .i-done{display:block}
.copy-btn.is-failed{color:#C0392B;border-color:rgba(192,57,43,.42);background:#fff}
.copy-btn.is-failed .i-copy{display:none}
.copy-btn.is-failed .i-done{display:block}
/* 图标按钮（页脚用，空间紧凑） */
.copy-btn-icon{width:32px;height:32px;padding:0;border-radius:9px}
.copy-btn-icon svg{width:15px;height:15px}
.copy-row{display:flex;justify-content:center;margin-top:14px}

/* ---------- 12c. 二维码放大弹层 ---------- */
.qr-modal{position:fixed;inset:0;z-index:200;display:grid;place-items:center;padding:22px}
.qr-modal[hidden]{display:none}
.qr-modal-backdrop{
  position:absolute;inset:0;background:rgba(3,14,32,.8);
  backdrop-filter:blur(7px);-webkit-backdrop-filter:blur(7px);
  animation:qrFade .28s var(--ease);
}
.qr-modal-panel{
  position:relative;z-index:1;width:min(100%,420px);
  max-height:calc(100svh - 44px);overflow-y:auto;
  padding:34px 32px 30px;text-align:center;
  background:#fff;border-radius:var(--r-xl);
  box-shadow:0 30px 70px rgba(0,10,26,.45);
  animation:qrPop .34s var(--ease);
}
@keyframes qrFade{from{opacity:0}to{opacity:1}}
@keyframes qrPop{from{opacity:0;transform:translateY(14px) scale(.96)}to{opacity:1;transform:none}}
.qr-modal-close{
  position:absolute;top:12px;right:12px;width:40px;height:40px;
  display:grid;place-items:center;border-radius:50%;
  color:var(--ink-500);background:var(--bg-soft);
  transition:background .25s var(--ease),color .25s var(--ease),transform .3s var(--ease);
}
.qr-modal-close:hover{background:var(--bg-mid);color:var(--ink-900);transform:rotate(90deg)}
.qr-modal-close svg{width:18px;height:18px}
.qr-modal-kicker{font-size:12.5px;font-weight:600;letter-spacing:.2em;color:var(--ink-400)}
.qr-modal-id{
  margin-top:6px;font-family:var(--font-num);font-size:27px;font-weight:700;
  color:var(--ink-900);letter-spacing:.03em;user-select:all;-webkit-user-select:all;
}
.qr-modal-figure{
  width:min(100%,320px);margin:20px auto 0;padding:12px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-sm);
}
.qr-modal-figure img{display:block;width:100%;height:auto}
.qr-modal-note{
  display:inline-block;margin-top:18px;padding:6px 18px;
  font-size:14px;font-weight:700;color:#078B45;
  background:rgba(7,193,96,.1);border:1px solid rgba(7,193,96,.26);border-radius:999px;
}
.qr-modal-hint{margin-top:12px;font-size:13px;color:var(--ink-400)}
body.qr-open{overflow:hidden}

/* ---------- 13. Footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(206,222,240,.72);padding:64px 0 26px;position:relative}
.site-footer::before{
  content:"";position:absolute;inset:0 0 auto 0;height:3px;background:var(--grad-brand);
}
.footer-top{
  display:grid;grid-template-columns:1.05fr 1.15fr 1.1fr auto;gap:34px;
  padding-bottom:38px;border-bottom:1px solid rgba(255,255,255,.11);
}
.footer-brand{display:flex;align-items:center;gap:14px}
.footer-brand .brand-mark{width:44px;height:44px}
.footer-brand .brand-mark img{width:34px;height:32px}
.footer-brand strong{display:block;font-size:18px;color:#fff;letter-spacing:.06em;line-height:1.3}
.footer-brand span{font-size:12.5px;color:rgba(190,212,236,.66);letter-spacing:.05em}
.footer-nav{display:flex;flex-wrap:wrap;gap:10px 26px;align-content:center}
.footer-nav a{font-size:14.5px;color:rgba(206,222,240,.78);transition:color .25s var(--ease)}
.footer-nav a:hover{color:var(--cyan-300)}
.footer-contact{display:flex;flex-direction:column;gap:8px;justify-content:center;font-size:14px;line-height:1.7}
.footer-contact a{font-family:var(--font-num);font-size:18px;font-weight:700;color:#fff;letter-spacing:.02em}
.footer-contact a:hover{color:var(--cyan-300)}

/* 页脚微信栏 */
.footer-wx{display:flex;flex-direction:column;align-items:flex-start;justify-content:center}
.footer-wx > b{
  display:block;margin-bottom:12px;font-size:12.5px;font-weight:600;
  letter-spacing:.14em;color:rgba(190,212,236,.62);
}
.qr-thumb-sm{width:112px;padding:7px;border-radius:12px;border-color:rgba(255,255,255,.16)}
.qr-thumb-sm img{width:96px;height:96px;border-radius:6px}
.qr-thumb-sm .qr-hint{padding-top:6px;font-size:10.5px;color:rgba(150,175,205,.9)}
.qr-thumb-sm .qr-hint svg{width:11px;height:11px}
.footer-wx-row{display:flex;align-items:center;gap:9px;margin-top:13px}
.footer-wx-id{
  font-family:var(--font-num);font-size:17px;font-weight:700;
  color:#fff;letter-spacing:.03em;user-select:all;-webkit-user-select:all;
}
/* 页脚为深色底，复制按钮走深色配色 */
.footer-wx .copy-btn{color:#5FD79A;background:rgba(255,255,255,.07);border-color:rgba(95,215,154,.42)}
.footer-wx .copy-btn:hover,.footer-wx .copy-btn.is-copied{background:#078B45;color:#fff;border-color:#078B45;box-shadow:0 6px 16px rgba(0,0,0,.3)}
.footer-wx .copy-btn.is-failed{color:#FF9B8F;border-color:rgba(255,155,143,.45);background:rgba(255,255,255,.07)}
.wx-note-sm{margin-top:7px;font-size:12px;font-weight:600;font-style:normal;color:#5FD79A}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  padding-top:24px;font-size:13.5px;color:rgba(180,203,229,.62);
}
.footer-bottom a{display:inline-block;color:rgba(180,203,229,.72);padding-block:6px;line-height:1.6;transition:color .25s var(--ease)}
.footer-bottom a:hover{color:var(--cyan-300)}

/* ---------- 14. To top ---------- */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:90;
  width:48px;height:48px;display:grid;place-items:center;border-radius:50%;
  background:var(--brand-800);color:#fff;box-shadow:0 10px 26px rgba(0,30,61,.32);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:all .35s var(--ease);
}
.to-top svg{width:20px;height:20px}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--brand-600);transform:translateY(-3px)}

/* ---------- 15. Reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal[data-delay="1"]{transition-delay:.08s}
.reveal[data-delay="2"]{transition-delay:.16s}
.reveal[data-delay="3"]{transition-delay:.24s}
.reveal[data-delay="4"]{transition-delay:.32s}
.reveal[data-delay="5"]{transition-delay:.4s}
.reveal[data-delay="6"]{transition-delay:.48s}
.reveal[data-delay="7"]{transition-delay:.56s}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 16. Responsive ---------- */
@media (max-width:1080px){
  .ind-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px 28px}
}
@media (max-width:960px){
  :root{--header-h:68px}
  .about-grid{grid-template-columns:1fr}
  .svc-grid{grid-template-columns:1fr}
  .adv-item{grid-template-columns:1fr;gap:24px}
  .adv-item-rev .adv-media{order:0}
  .adv-media{aspect-ratio:16/9}
  .contact-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .hero-stats li:nth-child(2){border-right:0}
  .hero-stats li:nth-child(1),.hero-stats li:nth-child(2){border-bottom:1px solid rgba(255,255,255,.13)}
}
@media (max-width:860px){
  .nav{
    position:fixed;inset:var(--header-h) 0 auto 0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(255,255,255,.985);backdrop-filter:blur(20px);
    padding:18px 24px 26px;box-shadow:0 20px 40px rgba(10,26,48,.16);
    border-bottom:1px solid var(--line);
    transform:translateY(-14px);opacity:0;visibility:hidden;pointer-events:none;
    transition:all .32s var(--ease);max-height:calc(100svh - var(--header-h));overflow-y:auto;
  }
  .nav.is-open{transform:none;opacity:1;visibility:visible;pointer-events:auto}
  .nav ul{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{padding:14px 16px;font-size:17px;font-weight:600;color:var(--ink-900);border-radius:10px}
  .nav-link::after{display:none}
  .nav-link:hover,.nav-link.is-active{color:var(--brand-700);background:var(--bg-mid)}
  .site-header.is-scrolled .nav-link{color:var(--ink-900)}
  .nav-cta{margin:12px 0 0;padding:14px 24px}
  .nav-toggle{display:flex}
  .site-header{background:rgba(255,255,255,.9);backdrop-filter:blur(18px);height:var(--header-h)}
  .site-header .brand-text strong{color:var(--brand-900)}
  .site-header .brand-text em{color:var(--ink-500)}
  .site-header .nav-toggle span{background:var(--ink-900)}
  .site-header::after{opacity:.5}
  body.nav-open{overflow:hidden}
}
@media (max-width:640px){
  .wrap{padding-inline:18px}
  .brand-text em{display:none}
  .brand-text strong{font-size:17px}
  .brand-mark{width:42px;height:42px}
  .brand-mark img{width:33px;height:31px}
  .hero{min-height:auto;padding-top:calc(var(--header-h) + 56px)}
  .hero-media img{object-position:64% 34%}
  .hero-inner{padding-block:34px 12px}
  /* 窄屏：标题在语义断点处分行，避免末字孤行 */
  .hero-title{line-height:1.22}
  .hero-title .dot{display:none}
  .hero-title .nb{display:block}
  .hero-actions{gap:10px;margin-top:28px}
  .hero-actions .btn{flex:1 1 auto;padding:13px 20px}
  .hero-stats{margin-top:40px}
  .hero-stats li{padding:20px 16px 22px}
  .hero-stats span{font-size:12.5px}
  .eyebrow{font-size:11.5px;letter-spacing:.16em;padding:6px 14px}
  .svc-body{padding:24px 22px 28px}
  .about-card{padding:30px 24px 28px}
  .duo-visual figcaption{padding:22px 22px}
  .duo-visual figcaption b{font-size:18px}
  .duo-visual figcaption span{font-size:13.5px}
  .duo-visual img{aspect-ratio:16/10}
  .contact-card{padding:24px 20px;gap:16px}
  .c-body a{font-size:16.5px}
  /* 微信面板窄屏改为上下排布 */
  .wx-panel{grid-template-columns:1fr;gap:22px;justify-items:start;padding:24px 20px}
  .wx-desc{max-width:none}
  .qr-thumb{width:150px}
  .qr-thumb img{width:130px;height:130px}
  .footer-wx{margin-top:4px}
  .qr-modal-panel{padding:28px 22px 26px}
  .footer-top{grid-template-columns:1fr;gap:26px}
  .footer-bottom{font-size:12.5px;justify-content:flex-start}
  /* 移动端热区补偿：确保可点击文字链不小于 24×24（WCAG 2.5.8） */
  .footer-nav{gap:0 14px}
  .footer-nav a{padding:9px 0;font-size:15px}
  .footer-contact a{padding:5px 0}
  .footer-brand{padding-block:2px}
  .c-link,.link-arrow{padding-block:7px}
  .ind-card-cta .link-arrow{padding-block:4px}
  .c-body a{display:inline-block;padding-block:3px}
  .ind-grid{grid-template-columns:1fr}
  .to-top{right:16px;bottom:16px;width:44px;height:44px}
}

/* ---------- 17. Motion / Print ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;
    transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1!important;transform:none!important}
  .marquee-track{animation:none}
}
@media print{
  .site-header,.to-top,.marquee,.hero-actions{display:none!important}
  .hero{min-height:auto;color:#000}
  .hero-scrim,.hero-media{display:none}
  body{color:#000;background:#fff}
  .section{padding:24px 0;page-break-inside:avoid}
}