/* ============================================================
   COOLPiRE 官网样式表  v2.0 (GB/T 48023—2026 定位版)
   品牌色系：深海军蓝 / 冰白 / 青绿
   ============================================================ */

:root{
  --navy:#0B1D33;          /* 品牌主色 深海军蓝 */
  --navy-2:#12294A;        /* 次级深色 */
  --navy-3:#1C3A63;        /* 分隔/边框深色 */
  --ice:#F4F7FA;           /* 冰白 底色 */
  --ice-2:#E4EBF2;         /* 冰白 分隔 */
  --teal:#2FD4C4;          /* 品牌强调色 */
  --teal-dk:#12A899;
  --pass:#2FD48A;          /* 合格判定 */
  --fail:#FF7A5C;          /* 超标判定 */
  --amber:#F5B544;         /* 提示 */
  --ink:#0E1C2C;           /* 正文 */
  --ink-2:#4A5B6E;
  --ink-3:#7C8CA0;
  --line:#D8E1EA;
  --maxw:1180px;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"SF Mono","JetBrains Mono","Roboto Mono",Menlo,Consolas,"Courier New",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-body);color:var(--ink);
  background:var(--ice);line-height:1.75;
  -webkit-font-smoothing:antialiased;
  font-size:16px;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:2px}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- 条款号眉标：本站的核心结构装置 ----------
   每个板块的眉标不是装饰性编号，而是该板块内容在国标中的出处。 */
.clause{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:var(--teal-dk);background:rgba(47,212,196,.10);
  border:1px solid rgba(47,212,196,.34);
  padding:5px 11px;border-radius:3px;margin-bottom:18px;
  text-transform:none;
}
.clause::before{content:"§";opacity:.6;font-weight:700}
.on-dark .clause{color:var(--teal);background:rgba(47,212,196,.12);border-color:rgba(47,212,196,.32)}
.clause.plain::before{content:"";display:none}

/* ---------- 顶部导航 ---------- */
header.nav{
  position:sticky;top:0;z-index:60;background:rgba(11,29,51,.94);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid rgba(255,255,255,.09);
}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:0 24px;display:flex;align-items:center;gap:28px;height:66px}
.brand{display:flex;align-items:center;gap:11px;color:#fff;flex-shrink:0}
.brand svg{width:32px;height:32px;flex-shrink:0}
.brand b{font-size:19px;font-weight:800;letter-spacing:.12em}
.brand span{font-size:10px;color:var(--teal);letter-spacing:.2em;display:block;line-height:1;margin-top:2px;font-family:var(--font-mono)}
.nav-links{display:flex;gap:24px;margin-left:auto;align-items:center}
.nav-links a{color:#C7D6E6;font-size:14.5px;padding:6px 0;border-bottom:2px solid transparent;transition:.2s;white-space:nowrap}
.nav-links a:hover{color:#fff;border-bottom-color:var(--teal)}
.nav-links a.on{color:#fff;border-bottom-color:var(--teal)}
.nav-cta{background:var(--teal);color:var(--navy)!important;padding:9px 18px!important;border-radius:4px;font-weight:700;border:none!important}
.nav-cta:hover{background:#4EE3D4}
.burger{display:none;margin-left:auto;background:none;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:4px;padding:7px 10px;cursor:pointer;font-size:16px;line-height:1}

/* ---------- 通用板块 ---------- */
section{padding:84px 0}
section.tight{padding:58px 0}
.dark{background:var(--navy);color:#DCE7F2}
.dark h2,.dark h3{color:#fff}
.deep{background:linear-gradient(168deg,#0B1D33 0%,#12294A 62%,#0F2440 100%);color:#DCE7F2}

h1{font-size:clamp(30px,4.6vw,52px);line-height:1.2;font-weight:800;letter-spacing:-.01em;margin:0 0 20px}
h2{font-size:clamp(24px,3.1vw,34px);line-height:1.32;font-weight:800;margin:0 0 16px;letter-spacing:-.005em}
h3{font-size:19px;font-weight:700;margin:0 0 10px}
.lead{font-size:17.5px;color:var(--ink-2);max-width:760px;margin:0 0 8px}
.dark .lead,.deep .lead{color:#A9BFD4}
.sec-head{max-width:780px;margin-bottom:44px}

.btn{display:inline-flex;align-items:center;gap:9px;padding:14px 26px;border-radius:5px;font-weight:700;font-size:15.5px;transition:.2s;border:1.5px solid transparent;cursor:pointer}
.btn-p{background:var(--teal);color:var(--navy)}
.btn-p:hover{background:#4EE3D4;transform:translateY(-1px)}
.btn-g{border-color:rgba(255,255,255,.34);color:#fff}
.btn-g:hover{border-color:var(--teal);color:var(--teal)}
.btn-d{border-color:var(--navy-3);color:var(--navy)}
.btn-d:hover{background:var(--navy);color:#fff}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}

/* ---------- 首屏 ---------- */
.hero{
  background:linear-gradient(165deg,#0B1D33 0%,#12294A 55%,#0A1B30 100%);
  color:#fff;padding:76px 0 88px;position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-16%;top:-24%;width:640px;height:640px;
  background:radial-gradient(circle,rgba(47,212,196,.16) 0%,transparent 66%);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;position:relative;z-index:2}
.hero h1{color:#fff}
.hero .lead{color:#B4C8DC;font-size:18px}
.hero-note{margin-top:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);font-size:13.5px;color:#8FA6BE;max-width:520px}
.kicker{
  display:inline-block;font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;
  color:var(--teal);border:1px solid rgba(47,212,196,.4);background:rgba(47,212,196,.09);
  padding:6px 13px;border-radius:3px;margin-bottom:22px;
}

/* ---------- 签名元素：验收判定面板 ---------- */
.panel{
  background:#08182B;border:1px solid rgba(47,212,196,.24);border-radius:9px;
  box-shadow:0 26px 60px rgba(0,0,0,.42);overflow:hidden;position:relative;
}
.panel-top{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:13px 17px;background:rgba(47,212,196,.07);border-bottom:1px solid rgba(47,212,196,.2);
}
.panel-top b{font-size:13.5px;color:#fff;font-weight:700;letter-spacing:.02em}
.panel-top em{font-style:normal;font-family:var(--font-mono);font-size:10.5px;color:var(--teal);letter-spacing:.05em}
.panel-sub{padding:11px 17px 4px;font-family:var(--font-mono);font-size:10.5px;color:#5F7B96;letter-spacing:.04em;display:flex;justify-content:space-between}
.rows{padding:4px 17px 14px}
.row{
  display:grid;grid-template-columns:1fr 88px 96px 54px;gap:8px;align-items:center;
  padding:11px 0;border-bottom:1px solid rgba(255,255,255,.07);font-size:13.5px;
}
.row:last-child{border-bottom:none}
.row .nm{color:#C3D5E6}
.row .nm small{display:block;font-family:var(--font-mono);font-size:10px;color:#5F7B96;letter-spacing:.03em}
.row .val{font-family:var(--font-mono);font-size:15px;font-weight:600;text-align:right;font-variant-numeric:tabular-nums;transition:color .5s}
.row .lim{font-family:var(--font-mono);font-size:11.5px;color:#6C88A4;text-align:right}
.row .jd{
  font-size:11px;font-weight:700;text-align:center;padding:3px 0;border-radius:3px;
  transition:.5s;letter-spacing:.04em;
}
.v-fail{color:var(--fail)} .v-pass{color:var(--pass)}
.j-fail{background:rgba(255,122,92,.16);color:var(--fail);border:1px solid rgba(255,122,92,.34)}
.j-pass{background:rgba(47,212,138,.16);color:var(--pass);border:1px solid rgba(47,212,138,.36)}
.panel-foot{
  padding:15px 17px;background:rgba(255,255,255,.03);border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:64px;
}
.foot-l{font-size:11.5px;color:#6C88A4;font-family:var(--font-mono);line-height:1.6}
.stamp{
  border:2px solid var(--pass);color:var(--pass);border-radius:5px;padding:7px 14px;
  font-weight:800;font-size:14px;letter-spacing:.14em;flex-shrink:0;
  transform:rotate(-4deg) scale(.86);opacity:0;transition:.55s cubic-bezier(.2,1.4,.4,1);
  text-align:center;line-height:1.3;
}
.stamp small{display:block;font-family:var(--font-mono);font-size:9px;letter-spacing:.04em;font-weight:600;opacity:.85}
.stamp.show{opacity:1;transform:rotate(-4deg) scale(1)}
.panel-cap{margin-top:13px;font-size:12.5px;color:#7E96AE;text-align:center;line-height:1.65}

/* ---------- 卡片 / 网格 ---------- */
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{
  background:#fff;border:1px solid var(--line);border-radius:8px;padding:28px;
  transition:.22s;
}
.card:hover{border-color:var(--teal);box-shadow:0 10px 30px rgba(11,29,51,.09);transform:translateY(-2px)}
.card h3{margin-bottom:9px}
.card p{margin:0;color:var(--ink-2);font-size:14.5px;line-height:1.75}
.card .ci{font-family:var(--font-mono);font-size:11px;color:var(--teal-dk);letter-spacing:.05em;margin-bottom:12px;display:block}
.dark .card,.deep .card{background:rgba(255,255,255,.045);border-color:rgba(255,255,255,.12)}
.dark .card p,.deep .card p{color:#A9BFD4}
.dark .card:hover,.deep .card:hover{background:rgba(255,255,255,.075);box-shadow:none}
.dark .card .ci,.deep .card .ci{color:var(--teal)}

/* ---------- 指标表 ---------- */
.tbl{width:100%;border-collapse:collapse;font-size:14.5px;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.tbl th{background:var(--navy);color:#fff;text-align:left;padding:13px 16px;font-size:13.5px;font-weight:700;letter-spacing:.02em}
.tbl td{padding:13px 16px;border-top:1px solid var(--ice-2);color:var(--ink-2)}
.tbl td:first-child{color:var(--ink);font-weight:600}
.tbl .mono{font-family:var(--font-mono);font-size:13.5px;color:var(--navy);font-variant-numeric:tabular-nums}
.tbl tr:hover td{background:#FAFCFE}
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}

/* ---------- 三个时刻 ---------- */
.moment{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--teal);
  border-radius:0 8px 8px 0;padding:26px 26px 24px;
}
.moment .when{font-family:var(--font-mono);font-size:11px;color:var(--teal-dk);letter-spacing:.08em;margin-bottom:9px}
.moment h3{margin-bottom:11px}
.moment p{margin:0 0 14px;color:var(--ink-2);font-size:14.5px}
.moment .ask{
  font-size:14px;color:var(--navy);background:var(--ice);border-radius:5px;padding:12px 14px;
  border-left:2px solid var(--navy-3);
}
.moment .ask b{color:var(--teal-dk)}

/* ---------- 两机联动 ---------- */
.link2{display:grid;grid-template-columns:1fr 92px 1fr;gap:0;align-items:stretch;margin-top:34px}
.mach{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:8px;padding:26px}
.mach .mid{font-family:var(--font-mono);font-size:11px;color:var(--teal);letter-spacing:.08em;margin-bottom:8px}
.mach h3{font-size:17px;margin-bottom:8px}
.mach p{font-size:14px;color:#A9BFD4;margin:0}
.mach ul{margin:12px 0 0;padding-left:17px;font-size:13.5px;color:#A9BFD4}
.mach li{margin-bottom:5px}
.lock{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:0 6px}
.lock-ico{width:44px;height:44px;border-radius:50%;border:1.5px solid var(--teal);display:flex;align-items:center;justify-content:center;color:var(--teal);font-size:19px;background:rgba(47,212,196,.09)}
.lock small{font-size:10px;color:var(--teal);font-family:var(--font-mono);text-align:center;letter-spacing:.05em;line-height:1.45}

/* ---------- 倒计时 ---------- */
.count{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.cbox{background:rgba(255,255,255,.06);border:1px solid rgba(47,212,196,.28);border-radius:7px;padding:16px 22px;text-align:center;min-width:96px}
.cbox b{display:block;font-family:var(--font-mono);font-size:30px;color:var(--teal);font-weight:700;line-height:1.1;font-variant-numeric:tabular-nums}
.cbox small{font-size:11.5px;color:#8FA6BE;letter-spacing:.06em}

/* ---------- 规格 / 列表 ---------- */
.spec{list-style:none;padding:0;margin:0}
.spec li{display:flex;justify-content:space-between;gap:18px;padding:12px 0;border-bottom:1px solid var(--ice-2);font-size:14.5px}
.spec li:last-child{border-bottom:none}
.spec .k{color:var(--ink-2)}
.spec .v{font-family:var(--font-mono);color:var(--navy);font-weight:600;text-align:right;font-variant-numeric:tabular-nums}
.dark .spec li,.deep .spec li{border-color:rgba(255,255,255,.1)}
.dark .spec .k,.deep .spec .k{color:#A9BFD4}
.dark .spec .v,.deep .spec .v{color:var(--teal)}

.ticks{list-style:none;padding:0;margin:16px 0 0}
.ticks li{position:relative;padding-left:26px;margin-bottom:11px;font-size:14.5px;color:var(--ink-2)}
.ticks li::before{content:"";position:absolute;left:2px;top:9px;width:9px;height:9px;border-radius:2px;background:var(--teal);opacity:.85}
.dark .ticks li,.deep .ticks li{color:#A9BFD4}

/* ---------- 提示条 ---------- */
.note{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--amber);
  border-radius:0 7px 7px 0;padding:18px 22px;font-size:14px;color:var(--ink-2);margin-top:26px;
}
.note b{color:var(--navy)}
.dark .note,.deep .note{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12);border-left-color:var(--amber);color:#A9BFD4}
.dark .note b,.deep .note b{color:#fff}

/* ---------- FAQ ---------- */
.faq{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.faq details{border-bottom:1px solid var(--ice-2)}
.faq details:last-child{border-bottom:none}
.faq summary{padding:19px 24px;cursor:pointer;font-weight:600;font-size:15.5px;list-style:none;display:flex;justify-content:space-between;gap:14px;align-items:flex-start}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--teal-dk);font-weight:700;font-size:20px;flex-shrink:0;line-height:1.3}
.faq details[open] summary::after{content:"−"}
.faq details[open] summary{background:var(--ice)}
.faq .a{padding:4px 24px 22px;color:var(--ink-2);font-size:14.5px}
.faq .a p{margin:0 0 10px}
.faq .a p:last-child{margin-bottom:0}

/* ---------- CTA ---------- */
.cta-band{background:var(--navy);color:#fff;text-align:center;padding:70px 0}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:#A9BFD4;max-width:620px;margin:0 auto 28px;font-size:16px}
.cta-band .btn-row{justify-content:center}

/* ---------- 页脚 ---------- */
footer{background:#071426;color:#8FA6BE;padding:56px 0 30px;font-size:14px}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;margin-bottom:36px}
footer h4{color:#fff;font-size:14px;margin:0 0 14px;font-weight:700;letter-spacing:.03em}
footer a{color:#8FA6BE;display:block;margin-bottom:9px;transition:.18s;font-size:13.5px}
footer a:hover{color:var(--teal)}
footer .f-brand p{font-size:13.5px;line-height:1.8;margin:12px 0 0;max-width:290px}
.f-bot{border-top:1px solid rgba(255,255,255,.09);padding-top:22px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#5F7B96}
.f-bot a{display:inline;margin:0}

/* ---------- 页头（内页） ---------- */
.phead{background:linear-gradient(160deg,#0B1D33,#12294A);color:#fff;padding:64px 0 56px}
.phead h1{color:#fff;font-size:clamp(27px,3.7vw,42px);margin-bottom:14px}
.phead .lead{color:#A9BFD4}
.crumb{font-family:var(--font-mono);font-size:12px;color:#6C88A4;margin-bottom:16px;letter-spacing:.04em}
.crumb a:hover{color:var(--teal)}

/* ---------- 响应式 ---------- */
@media(max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .g4{grid-template-columns:repeat(2,1fr)}
  .f-grid{grid-template-columns:1fr 1fr}
  .link2{grid-template-columns:1fr;gap:14px}
  .lock{flex-direction:row;padding:6px 0}
}
@media(max-width:760px){
  section{padding:56px 0}
  .nav-links{
    display:none;position:absolute;top:66px;left:0;right:0;background:var(--navy);
    flex-direction:column;gap:0;padding:10px 24px 20px;border-bottom:1px solid rgba(255,255,255,.12);
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 0;border-bottom:1px solid rgba(255,255,255,.08);width:100%}
  .nav-cta{text-align:center;margin-top:10px}
  .burger{display:block}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr}
  .row{grid-template-columns:1fr 74px 54px;font-size:12.5px}
  .row .lim{display:none}
  .panel-foot{flex-direction:column;align-items:flex-start}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .stamp{opacity:1}
}

/* ---------- Logo ---------- */
.brand .logo{height:38px;width:auto;display:block}
footer .logo{height:36px;width:auto;margin-bottom:4px}
@media(max-width:760px){.brand .logo{height:32px}}

/* ---------- 应用场景图卡 ---------- */
.shot{
  margin:0;background:#fff;border:1px solid var(--line);border-radius:9px;
  overflow:hidden;transition:.22s;display:flex;flex-direction:column;
}
.shot:hover{border-color:var(--teal);box-shadow:0 12px 32px rgba(11,29,51,.11);transform:translateY(-2px)}
.shot img{width:100%;aspect-ratio:526/285;object-fit:cover;background:var(--ice-2)}
.shot figcaption{padding:24px 24px 26px}
.shot figcaption .ci{
  font-family:var(--font-mono);font-size:11px;color:var(--teal-dk);
  letter-spacing:.06em;display:block;margin-bottom:9px;
}
.shot figcaption h3{margin-bottom:9px}
.shot figcaption p{margin:0;color:var(--ink-2);font-size:14.5px;line-height:1.75}

/* ---------- 横幅条 ---------- */
.band{
  background:linear-gradient(100deg,#12294A 0%,#1C3A63 58%,#20518C 100%);
  border-radius:11px;padding:36px 40px;display:flex;align-items:center;
  justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.band h3{color:#fff;font-size:22px;margin:0 0 8px}
.band p{color:#A9BFD4;margin:0;font-size:14.5px;max-width:640px}
@media(max-width:760px){.band{padding:28px 24px}.band h3{font-size:19px}}

/* ---------- 产品图 ---------- */
.prod-hero{display:grid;grid-template-columns:.92fr 1.08fr;gap:52px;align-items:center}
.prod-hero .pic{
  background:linear-gradient(160deg,#FFFFFF,#EAF0F6);border:1px solid var(--line);
  border-radius:11px;padding:18px;display:flex;align-items:center;justify-content:center;
}
.prod-hero .pic img{width:100%;height:auto;border-radius:5px}
.dark .prod-hero .pic,.deep .prod-hero .pic{
  background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.03));
  border-color:rgba(255,255,255,.16);
}

.figpair{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.fig{
  margin:0;background:#fff;border:1px solid var(--line);border-radius:9px;
  overflow:hidden;display:flex;flex-direction:column;
}
.fig img{width:100%;height:auto;display:block;background:#EAF0F6}
.fig figcaption{padding:18px 22px 20px}
.fig figcaption b{display:block;font-size:15.5px;color:var(--ink);margin-bottom:5px}
.fig figcaption span{font-size:13.5px;color:var(--ink-2);line-height:1.7}
.dark .fig,.deep .fig{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.13)}
.dark .fig figcaption b,.deep .fig figcaption b{color:#fff}
.dark .fig figcaption span,.deep .fig figcaption span{color:#A9BFD4}

/* 机器卡内的产品图 */
.mach .shotbox{
  background:linear-gradient(160deg,rgba(255,255,255,.12),rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.14);border-radius:7px;margin-bottom:20px;overflow:hidden;
}
.mach .shotbox img{width:100%;height:auto;display:block}

@media(max-width:960px){.prod-hero{grid-template-columns:1fr;gap:32px}}
@media(max-width:760px){.figpair{grid-template-columns:1fr}}