/* ============================================================
   EMS-SOLAR · design-tokens.css  v1.0  (Arctic Instrument)
   冷白 #F4F8FB 主导 · 极地墨蓝 #0C4A6E · 冰蓝 accent #4FA3D1 · 银灰霜 #D9E4EC
   Fonts: Outfit (display) / Work Sans (body) / Chivo Mono (utility)
   签名元素: .dial 高精度表盘环（全站 ≤8 处）+ .nameplate 铭牌标签
   类名契约卡：编码 worker 只能使用本文件已有的类名（可组合工具类），
   新类名必须先由协调者加进本文件再使用。
   ============================================================ */
@font-face{font-family:'Outfit';font-style:normal;font-weight:100 900;font-display:swap;src:url('/fonts/outfit-latin.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Outfit';font-style:normal;font-weight:100 900;font-display:swap;src:url('/fonts/outfit-latin-ext.woff2') format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Work Sans';font-style:normal;font-weight:100 900;font-display:swap;src:url('/fonts/work-sans-latin.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Work Sans';font-style:normal;font-weight:100 900;font-display:swap;src:url('/fonts/work-sans-latin-ext.woff2') format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Work Sans';font-style:normal;font-weight:100 900;font-display:swap;src:url('/fonts/work-sans-vietnamese.woff2') format('woff2');unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}
@font-face{font-family:'Chivo Mono';font-style:normal;font-weight:100 900;font-display:swap;src:url('/fonts/chivo-mono-latin.woff2') format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+2E3C-2E42,U+FEFF,U+FFFD}
@font-face{font-family:'Chivo Mono';font-style:normal;font-weight:100 900;font-display:swap;src:url('/fonts/chivo-mono-latin-ext.woff2') format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}

:root{
  /* —— 色板（Arctic Instrument）—— */
  --glacier:#F4F8FB;        /* 冷白底 */
  --glacier-deep:#E3EDF4;   /* 冷白加深（带状区/图片位占位） */
  --frost:#D9E4EC;          /* 银灰霜（边框/弱块） */
  --polar:#0C4A6E;          /* 极地墨蓝（深底/主文字/按钮底） */
  --polar-deep:#082F4C;     /* 更深（页脚/深卡片） */
  --ink:#123A5C;            /* 浅底正文墨色 */
  --ice:#4FA3D1;            /* 冰蓝 accent（表盘弧/装饰/浅底非正文） */
  --ice-bright:#8FD0EE;     /* 亮冰蓝（深底上的 accent 文字，5.59:1 达标） */
  --ice-soft:#7FBFE2;       /* 亮冰蓝（hover） */
  --ice-deep:#2E6E99;       /* 深冰蓝（浅底上的 accent 文字，4.5:1 达标） */
  --on-polar:#EAF2F8;       /* 深底主文字 */
  --on-polar-dim:#A9C3D8;   /* 深底次级文字 */
  --line-dark:rgba(234,242,248,.18);  /* 深底发丝线 */
  --line-light:#C9DAE6;     /* 浅底发丝线 */
  --ok:#2E7D5B;

  /* —— 字体 —— */
  --f-display:'Outfit','Segoe UI',sans-serif;
  --f-body:'Work Sans','Segoe UI',sans-serif;
  --f-mono:'Chivo Mono',Consolas,monospace;

  /* —— 尺寸 —— */
  --wrap:1180px;
  --radius:10px;
  --radius-sm:6px;
  --shadow:0 10px 30px rgba(8,47,76,.12);
}

/* ============ 基础 ============ */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--f-body);font-size:16px;line-height:1.65;color:var(--ink);background:var(--glacier);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
h1,h2,h3,.display{font-family:var(--f-display);font-weight:600;line-height:1.12;letter-spacing:-.01em}
h1{font-size:clamp(2.2rem,4.8vw,3.7rem)}
h2{font-size:clamp(1.65rem,3vw,2.4rem)}
h3{font-size:1.2rem;font-weight:600}
p{max-width:70ch}
.mono{font-family:var(--f-mono)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.section{padding:clamp(56px,7vw,96px) 0}
.section--tight{padding:clamp(40px,5vw,64px) 0}
.on-polar{background:var(--polar);color:var(--on-polar)}
.on-polar p{color:var(--on-polar-dim)}
.on-polar-deep{background:var(--polar-deep);color:var(--on-polar)}
.on-polar-deep p{color:var(--on-polar-dim)}
.on-glacier{background:var(--glacier);color:var(--ink)}
.on-glacier-deep{background:var(--glacier-deep);color:var(--ink)}
.on-white{background:#fff;color:var(--ink)}

/* 眉标（mono 大写 + 冰蓝仪表点） */
.eyebrow{font-family:var(--f-mono);font-size:.76rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;display:inline-flex;align-items:center;gap:.55em;margin-bottom:14px;color:var(--ice-deep)}
.eyebrow::before{content:'';width:8px;height:8px;border-radius:50%;background:var(--ice);flex:none}
.on-polar .eyebrow,.on-polar-deep .eyebrow{color:var(--ice-bright)}

/* 签名元素①：表盘环（全站 ≤8 处）— 冰蓝弧 + 刻度环 + 中心读数 */
.dial{position:relative;width:132px;height:132px;flex:none}
.dial::before{content:'';position:absolute;inset:0;border-radius:50%;
  background:conic-gradient(var(--ice) 0 var(--dial-val,75%), rgba(201,218,230,.55) var(--dial-val,75%) 100%);
  -webkit-mask:radial-gradient(circle,transparent 62%,#000 63%);mask:radial-gradient(circle,transparent 62%,#000 63%)}
.dial::after{content:'';position:absolute;inset:9px;border-radius:50%;
  background:repeating-conic-gradient(rgba(12,74,110,.55) 0 1.4deg,transparent 1.4deg 12deg);
  -webkit-mask:radial-gradient(circle,transparent 68%,#000 69%);mask:radial-gradient(circle,transparent 68%,#000 69%)}
.dial .dial-label{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;text-align:center}
.dial .dial-label b{font-family:var(--f-mono);font-weight:700;font-size:1.28rem;line-height:1;color:var(--polar)}
.on-polar .dial .dial-label b,.on-polar-deep .dial .dial-label b{color:var(--on-polar)}
.dial .dial-label span{font-family:var(--f-mono);font-size:.56rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ice-deep)}
.on-polar .dial .dial-label span,.on-polar-deep .dial .dial-label span{color:var(--ice-bright)}
.dial--lg{width:170px;height:170px}
.dial--sm{width:96px;height:96px}
.dial--sm .dial-label b{font-size:1rem}
.dial--sm .dial-label span{font-size:.5rem}

/* 签名元素②：铭牌标签（mono 芯片 + 角标） */
.nameplate{display:inline-flex;align-items:center;gap:.55em;font-family:var(--f-mono);font-size:.64rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--polar);background:#fff;border:1px solid var(--line-light);padding:5px 10px;border-radius:2px}
.nameplate::before{content:'';width:7px;height:7px;background:var(--ice);flex:none}
.on-polar .nameplate,.on-polar-deep .nameplate{color:var(--on-polar);background:rgba(234,242,248,.06);border-color:var(--line-dark)}
.on-polar .nameplate::before,.on-polar-deep .nameplate::before{background:var(--ice-bright)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;min-height:48px;padding:12px 26px;border-radius:var(--radius-sm);font-family:var(--f-body);font-weight:600;font-size:.95rem;letter-spacing:.02em;border:1.5px solid transparent;cursor:pointer;transition:background .18s,color .18s,border-color .18s}
.btn--primary{background:var(--polar);color:#fff}
.btn--primary:hover{background:var(--polar-deep)}
.on-polar .btn--primary,.on-polar-deep .btn--primary{background:var(--ice);color:var(--polar-deep)}
.on-polar .btn--primary:hover,.on-polar-deep .btn--primary:hover{background:var(--ice-soft)}
.btn--ghost{border-color:var(--polar);color:var(--polar)}
.btn--ghost:hover{background:rgba(12,74,110,.07)}
.on-polar .btn--ghost,.on-polar-deep .btn--ghost{border-color:var(--ice-bright);color:var(--ice-bright)}
.on-polar .btn--ghost:hover,.on-polar-deep .btn--ghost:hover{background:rgba(79,163,209,.12)}
.btn--light{background:var(--on-polar);color:var(--polar)}
.btn--light:hover{background:#fff}
/* 导航内按钮文字强制白色（.nav-main>li>a 优先级更高，会覆盖按钮色） */
.nav-main .btn.btn--primary{color:#fff}
.nav-main .btn.btn--primary:hover{color:#fff;background:var(--polar-deep)}

/* ============ 图片容器（aspect-ratio 白名单 3/2, 2/3, 1/1） ============ */
/* 图片位（v13.2）：data-img 仅作文档标注，无占位样式——全部图位均已填充真实图 */
.ar-3-2{aspect-ratio:3/2;overflow:hidden;background:var(--glacier-deep)}
.ar-2-3{aspect-ratio:2/3;overflow:hidden;background:var(--glacier-deep)}
.ar-1-1{aspect-ratio:1/1;overflow:hidden;background:var(--glacier-deep)}
.ar-3-2 img,.ar-2-3 img,.ar-1-1 img{width:100%;height:100%;object-fit:cover}

/* ============ P1 Hero ============ */
.hero{position:relative}
.hero--split{display:grid;grid-template-columns:1.05fr .95fr;min-height:min(78vh,720px);background:var(--glacier)}
.hero--split .hero-copy{padding:clamp(48px,6vw,90px) clamp(24px,4vw,64px);display:flex;flex-direction:column;justify-content:center;gap:18px}
.hero--split .hero-media{position:relative;overflow:hidden;min-width:0}
.hero--split .hero-media::after{content:'';position:absolute;left:0;right:0;bottom:0;height:46%;background:linear-gradient(180deg,transparent,rgba(8,47,76,.42));z-index:1;pointer-events:none}
.hero--split .hero-media img{width:100%;height:100%;object-fit:cover}
.hero--image{min-height:min(72vh,640px);display:flex;align-items:flex-end}
.hero--image img.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero--image .hero-overlay{position:relative;z-index:1;width:100%;padding:clamp(48px,7vw,110px) 0;background:linear-gradient(180deg,transparent,rgba(8,47,76,.78))}
.hero--light{background:var(--glacier-deep);padding:clamp(36px,4.5vw,60px) 0;border-bottom:1px solid var(--line-light)}
.hero--light .crumbs{margin-bottom:12px}
.hero h1{margin-bottom:10px}
.hero .lede{font-size:clamp(1.02rem,1.6vw,1.2rem);max-width:56ch;color:#3B5D79}
.on-polar .hero .lede,.on-polar-deep .hero .lede{color:var(--on-polar-dim)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:10px}
.hero-facts{display:flex;gap:clamp(18px,3vw,44px);flex-wrap:wrap;margin-top:26px;padding-top:20px;border-top:1px solid var(--line-light)}
.on-polar .hero-facts,.on-polar-deep .hero-facts{border-top-color:var(--line-dark)}
.hero-facts .fact{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ice-deep)}
.on-polar .hero-facts .fact,.on-polar-deep .hero-facts .fact{color:var(--on-polar-dim)}
.hero-facts .fact b{display:block;font-family:var(--f-display);font-size:1.45rem;letter-spacing:0;color:var(--polar)}
.on-polar .hero-facts .fact b,.on-polar-deep .hero-facts .fact b{color:var(--ice-bright)}

/* P3 spec-card（hero 右侧/分栏数据面板） */
.spec-card{background:#fff;border:1px solid var(--line-light);border-radius:var(--radius);padding:22px 22px 14px;color:var(--ink);box-shadow:var(--shadow)}
.hero--split .hero-media .spec-card{position:absolute;left:18px;bottom:18px;width:min(320px,calc(100% - 36px));z-index:2}
.hero--split .hero-media .dial{position:absolute;top:18px;right:18px;z-index:2}
.dial--card{background:rgba(255,255,255,.94);border-radius:50%;box-shadow:var(--shadow)}
.spec-card .spec-title{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ice-deep);margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid var(--line-light)}
.spec-card table{width:100%;border-collapse:collapse}
.spec-card th{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.06em;text-transform:uppercase;color:#4A6B85;text-align:left;padding:7px 0;font-weight:400}
.spec-card td{font-family:var(--f-mono);font-size:.86rem;color:var(--polar);text-align:right;padding:7px 0;border-top:1px solid var(--line-light)}

/* ============ P2 Split（默认同高：图片铺满列高，cover 裁切不拉伸） ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,64px);align-items:stretch}
.split>*{min-width:0}
.split.rev .split-media{order:2}
.split .split-body{display:flex;flex-direction:column;gap:14px;justify-content:center}
.split .split-media{position:relative;min-width:0;aspect-ratio:auto;overflow:hidden;border-radius:var(--radius);background:var(--glacier-deep)}
.split .split-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
@media(max-width:880px){
  .hero--split{grid-template-columns:1fr}
  .hero--split .hero-media{min-height:280px;order:-1}
  .split{grid-template-columns:1fr}
  .split.rev .split-media{order:0}
  .split .split-media{min-height:300px}
  .steps--2{grid-template-columns:repeat(2,1fr)}
}

/* 博客文章居中正文列 */
.article{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:26px}
.article h2{margin-top:10px}
.article .figure{margin:6px 0}

/* ============ P4 Stats band ============ */
.stats-band{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-light);border:1px solid var(--line-light);border-radius:var(--radius);overflow:hidden}
.on-polar .stats-band,.on-polar-deep .stats-band{background:var(--line-dark);border-color:var(--line-dark)}
.stats-band .stat{background:#fff;padding:26px 22px}
.on-polar .stats-band .stat,.on-polar-deep .stats-band .stat{background:var(--polar)}
.stats-band .stat b{display:block;font-family:var(--f-display);font-size:clamp(1.7rem,3vw,2.4rem);color:var(--polar);line-height:1.05;margin-bottom:6px}
.on-polar .stats-band .stat b,.on-polar-deep .stats-band .stat b{color:var(--ice-bright)}
.stats-band .stat span{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ice-deep)}
.on-polar .stats-band .stat span,.on-polar-deep .stats-band .stat span{color:var(--on-polar-dim)}
@media(max-width:880px){.stats-band{grid-template-columns:repeat(2,1fr)}}

/* ============ P5 Spec table ============ */
.table-wrap{overflow-x:auto;border:1px solid var(--line-light);border-radius:var(--radius);background:#fff}
.on-polar .table-wrap,.on-polar-deep .table-wrap{border-color:var(--line-dark);background:var(--polar-deep)}
table.spec{width:100%;border-collapse:collapse;min-width:0}
table.spec th,table.spec td{padding:12px 16px;text-align:left;font-size:.9rem;border-bottom:1px solid var(--line-light)}
.on-polar table.spec th,.on-polar-deep table.spec th,.on-polar table.spec td,.on-polar-deep table.spec td{border-bottom-color:var(--line-dark)}
table.spec thead th{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ice-deep);background:var(--glacier-deep)}
.on-polar table.spec thead th,.on-polar-deep table.spec thead th{color:var(--ice-bright);background:rgba(234,242,248,.05)}
table.spec td{font-family:var(--f-mono);font-size:.82rem;color:var(--ink)}
.on-polar table.spec td,.on-polar-deep table.spec td{color:var(--on-polar)}
table.spec tr:last-child th,table.spec tr:last-child td{border-bottom:none}

/* ============ P6 Steps ============ */
.steps{display:grid;gap:22px;counter-reset:step}
.steps--2{grid-template-columns:repeat(2,1fr)}
.steps--3{grid-template-columns:repeat(3,1fr)}
.steps--4{grid-template-columns:repeat(4,1fr)}
.steps--6{grid-template-columns:repeat(6,1fr)}
.steps .step{position:relative;padding:22px 18px 18px;border:1px solid var(--line-light);border-radius:var(--radius);background:#fff}
.on-polar .steps .step,.on-polar-deep .steps .step{border-color:var(--line-dark);background:var(--polar-deep)}
.steps .step::before{counter-increment:step;content:counter(step,decimal-leading-zero);font-family:var(--f-mono);font-size:.72rem;font-weight:700;color:var(--ice-deep);letter-spacing:.1em}
.on-polar .steps .step::before,.on-polar-deep .steps .step::before{color:var(--ice-bright)}
.steps .step h3{font-family:var(--f-body);font-weight:600;font-size:1rem;margin:8px 0 6px}
.steps .step p{font-size:.86rem;color:#4A6B85}
.on-polar .steps .step p,.on-polar-deep .steps .step p{color:var(--on-polar-dim)}
@media(max-width:980px){.steps--6{grid-template-columns:repeat(3,1fr)}.steps--3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:880px){.steps--4,.steps--6{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.steps--2,.steps--3,.steps--4,.steps--6{grid-template-columns:1fr}}

/* ============ P7 FAQ ============ */
.faq{display:flex;flex-direction:column;gap:0;border:1px solid var(--line-light);border-radius:var(--radius);overflow:hidden;background:#fff}
.on-polar .faq,.on-polar-deep .faq{border-color:var(--line-dark);background:var(--polar-deep)}
.faq details{border-bottom:1px solid var(--line-light)}
.on-polar .faq details,.on-polar-deep .faq details{border-bottom-color:var(--line-dark)}
.faq details:last-child{border-bottom:none}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;font-weight:600;font-size:.98rem;min-height:56px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';font-family:var(--f-mono);font-size:1.2rem;color:var(--ice-deep);flex:none;transition:transform .18s}
.on-polar .faq summary::after,.on-polar-deep .faq summary::after{color:var(--ice-bright)}
.faq details[open] summary::after{content:'−'}
.faq .faq-body{padding:0 20px 18px;font-size:.92rem;color:#4A6B85;max-width:none}
.faq .faq-body a{display:inline-flex;align-items:center;min-height:40px;padding:0 2px}
.on-polar .faq .faq-body,.on-polar-deep .faq .faq-body{color:var(--on-polar-dim)}

/* ============ P8 Grid 卡片 ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.grid-2>*,.grid-3>*,.grid-4>*{min-width:0}
@media(max-width:980px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:880px){.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.card{background:#fff;border:1px solid var(--line-light);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:border-color .18s,transform .18s}
.on-polar .card,.on-polar-deep .card{background:var(--polar-deep);border-color:var(--line-dark)}
.card:hover{border-color:var(--ice);transform:translateY(-2px)}
.card .card-media{position:relative}
.card .card-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.card .card-body h3{font-family:var(--f-body);font-weight:600;font-size:1.05rem}
.card .card-body p{font-size:.88rem;color:#4A6B85}
.on-polar .card .card-body p,.on-polar-deep .card .card-body p{color:var(--on-polar-dim)}
.card .card-meta{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ice-deep)}
.on-polar .card .card-meta,.on-polar-deep .card .card-meta{color:var(--ice-bright)}
a.card-link{display:block}
.card .card-more{margin-top:auto;font-family:var(--f-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ice-deep);padding-top:8px}
.on-polar .card .card-more,.on-polar-deep .card .card-more{color:var(--ice-bright)}

/* kv 小卡（认证/卖点） */
.kv{border-left:2px solid var(--ice);padding:4px 0 4px 14px}
.kv b{font-family:var(--f-mono);font-size:1.05rem;display:block;color:var(--polar)}
.on-polar .kv b,.on-polar-deep .kv b{color:var(--ice-bright)}
.kv span{font-size:.8rem;color:#4A6B85}
.on-polar .kv span,.on-polar-deep .kv span{color:var(--on-polar-dim)}

/* ============ P9 Quote band / CTA ============ */
.quote-band{position:relative;border-radius:var(--radius);overflow:hidden;background:var(--polar-deep);color:var(--on-polar)}
.quote-band img.cta-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.3}
.quote-band .quote-inner{position:relative;z-index:1;padding:clamp(36px,5vw,60px);display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.quote-band h2{margin-bottom:6px}
.quote-band p{color:var(--on-polar-dim);font-size:.95rem}

/* ============ P10 Timeline ============ */
.timeline{position:relative;padding-left:26px}
.timeline::before{content:'';position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:var(--ice);opacity:.6}
.timeline .tl-item{position:relative;padding:0 0 26px 16px}
.timeline .tl-item::before{content:'';position:absolute;left:-26px;top:6px;width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid var(--ice)}
.on-polar .timeline .tl-item::before,.on-polar-deep .timeline .tl-item::before{background:var(--polar)}
.timeline .tl-year{font-family:var(--f-mono);font-size:.76rem;font-weight:600;letter-spacing:.1em;color:var(--ice-deep)}
.on-polar .timeline .tl-year,.on-polar-deep .timeline .tl-year{color:var(--ice-bright)}
.timeline h3{font-family:var(--f-body);font-weight:600;font-size:1.02rem;margin:4px 0 4px}
.timeline p{font-size:.88rem;color:#4A6B85}
.on-polar .timeline p,.on-polar-deep .timeline p{color:var(--on-polar-dim)}

/* ============ P11 Cert / 客户文字墙 ============ */
.cert-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-light);border:1px solid var(--line-light);border-radius:var(--radius);overflow:hidden}
.on-polar .cert-wall,.on-polar-deep .cert-wall{background:var(--line-dark);border-color:var(--line-dark)}
@media(max-width:980px){.cert-wall{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.cert-wall{grid-template-columns:1fr}}
.cert-wall .cert{background:var(--glacier);padding:22px 14px;text-align:center;font-family:var(--f-mono);font-size:.95rem;font-weight:700;letter-spacing:.04em;color:var(--polar)}
.on-polar .cert-wall .cert,.on-polar-deep .cert-wall .cert{background:var(--polar-deep);color:var(--on-polar)}
.cert-wall .cert small{display:block;font-size:.7rem;font-weight:400;color:var(--ice-deep);margin-top:6px;letter-spacing:.08em}
.on-polar .cert-wall .cert small,.on-polar-deep .cert-wall .cert small{color:var(--ice-bright)}

/* ============ P13 Testimonial ============ */
.testi{border:1px solid var(--line-light);border-radius:var(--radius);background:#fff;padding:24px;display:flex;flex-direction:column;gap:12px}
.on-polar .testi,.on-polar-deep .testi{border-color:var(--line-dark);background:var(--polar-deep)}
.testi .t-quote{font-family:var(--f-display);font-size:1.06rem;line-height:1.45}
.testi .t-meta{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ice-deep)}
.on-polar .testi .t-meta,.on-polar-deep .testi .t-meta{color:var(--ice-bright)}

/* ============ 面包屑 ============ */
.crumbs{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ice-deep)}
.on-polar .crumbs,.on-polar-deep .crumbs{color:var(--ice-bright)}
.crumbs a{text-decoration:none}
.crumbs a:hover{text-decoration:underline}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(244,248,251,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line-light)}
.site-header .nav-bar{display:flex;align-items:center;gap:26px;min-height:70px}
.brand{display:flex;align-items:center;gap:12px;color:var(--polar)}
.brand img{height:48px;width:auto}
.brand .brand-name{font-family:var(--f-display);font-weight:600;font-size:1.28rem;letter-spacing:.02em}
.brand .brand-sub{display:block;font-family:var(--f-mono);font-size:.55rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ice-deep);margin-top:2px}
.nav-main{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-main>li{position:relative}
.nav-main>li>a{display:inline-flex;align-items:center;min-height:44px;padding:10px 13px;font-size:.9rem;font-weight:500;color:var(--ink);border-radius:6px}
.nav-main>li>a:hover{color:var(--ice-deep)}
.nav-main>li.has-sub>a::after{content:'▾';font-family:var(--f-mono);font-size:.7rem;margin-left:5px;color:var(--ice)}
.nav-sub{position:absolute;top:100%;left:0;min-width:230px;background:#fff;border:1px solid var(--line-light);border-radius:var(--radius-sm);padding:8px;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .16s,transform .16s;box-shadow:var(--shadow)}
.nav-main>li:hover .nav-sub,.nav-main>li:focus-within .nav-sub{opacity:1;visibility:visible;transform:translateY(0)}
.nav-sub a{display:flex;align-items:center;min-height:42px;padding:8px 12px;font-size:.86rem;color:#4A6B85;border-radius:4px}
.nav-sub a:hover{color:var(--polar);background:var(--glacier-deep)}
.nav-cta{margin-left:10px}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line-light);color:var(--polar);border-radius:6px;min-width:44px;min-height:44px;font-size:1.2rem;cursor:pointer}
@media(max-width:1020px){
  .nav-toggle{display:block}
  .nav-main{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line-light);flex-direction:column;align-items:stretch;padding:12px 20px 18px;gap:2px}
  .nav-main.open{display:flex}
  .nav-sub{position:static;opacity:1;visibility:visible;transform:none;border:none;box-shadow:none;background:transparent;padding:0 0 0 14px;min-width:0}
  .nav-cta{margin:8px 0 0}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--polar-deep);color:var(--on-polar-dim);padding:clamp(44px,6vw,72px) 0 0;border-top:1px solid var(--line-dark)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
@media(max-width:980px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr}}
.site-footer h3{font-family:var(--f-mono);font-size:.7rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--ice-bright);margin-bottom:14px}
.site-footer a{display:flex;align-items:center;min-height:40px;padding:5px 0;font-size:.88rem}
.footer-bottom a{display:inline-flex;align-items:center;min-height:40px;padding:0}
.site-footer a:hover{color:var(--ice)}
.site-footer .f-brand img{height:44px;width:auto;margin-bottom:14px}
.site-footer .f-note{font-size:.84rem;max-width:34ch}
.footer-bottom{border-top:1px solid var(--line-dark);padding:18px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-family:var(--f-mono);font-size:.7rem;letter-spacing:.06em}
.footer-bottom a{display:inline-flex;align-items:center;min-height:40px;padding:0}
.crumbs a{display:inline-flex;align-items:center;min-width:40px;min-height:40px;justify-content:center;padding:0 8px}

/* ============ 询盘弹窗（左图右表 双栏标准） ============ */
.modal-backdrop{position:fixed;inset:0;background:rgba(8,47,76,.7);z-index:100;display:none;align-items:center;justify-content:center;padding:20px}
.modal-backdrop.open{display:flex}
.modal-dialog{position:relative;display:grid;grid-template-columns:1fr 1fr;max-width:760px;width:100%;background:var(--polar);border:1px solid var(--line-dark);border-radius:var(--radius);overflow:hidden;max-height:90vh}
.modal-image-panel{position:relative;min-height:320px}
.modal-image-panel img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.modal-image-panel .mi-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,47,76,.12),rgba(8,47,76,.85));display:flex;flex-direction:column;justify-content:flex-end;padding:22px;color:var(--on-polar)}
.modal-image-panel .mi-overlay h3{font-size:1.3rem;margin-bottom:6px}
.modal-image-panel .mi-overlay p{font-size:.82rem;color:var(--on-polar-dim);font-family:var(--f-mono)}
.modal-form-panel{padding:28px 28px 24px;display:flex;flex-direction:column;gap:16px;overflow-y:auto;color:var(--ink);background:#fff}
.modal-form-panel h3{font-size:1.25rem;color:var(--polar)}
.modal-form-panel .mf-note{font-size:.8rem;color:#4A6B85}
.modal-form-panel .btn{margin-top:6px;width:100%}
.modal-form-panel .field label{color:var(--ice-deep)}
.modal-form-panel .field input,.modal-form-panel .field select,.modal-form-panel .field textarea{border-color:var(--line-light);background:#fff;color:var(--ink)}
.modal-form-panel .field input:focus,.modal-form-panel .field select:focus,.modal-form-panel .field textarea:focus{outline-color:var(--ice-deep)}
.modal-close{position:absolute;top:12px;right:12px;z-index:2;background:var(--polar-deep);border:1px solid var(--line-dark);color:var(--on-polar);border-radius:6px;min-width:40px;min-height:40px;font-size:1rem;cursor:pointer}
.modal-close:hover{color:var(--ice-bright)}
@media(max-width:720px){.modal-dialog{grid-template-columns:1fr}.modal-image-panel{min-height:170px}}

/* ============ 表单 ============ */
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ice-deep)}
.on-glacier .field label,.on-glacier-deep .field label,.on-white .field label{color:var(--ice-deep)}
.field input,.field select,.field textarea{font-family:var(--f-body);font-size:.95rem;padding:11px 12px;min-height:46px;border:1px solid var(--line-dark);border-radius:var(--radius-sm);background:rgba(234,242,248,.07);color:var(--on-polar);width:100%}
.on-glacier .field input,.on-glacier .field select,.on-glacier .field textarea,.on-glacier-deep .field input,.on-glacier-deep .field select,.on-glacier-deep .field textarea,.on-white .field input,.on-white .field select,.on-white .field textarea{border-color:var(--line-light);background:#fff;color:var(--ink)}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--ice);outline-offset:1px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-grid .field--full{grid-column:1/-1}
@media(max-width:560px){.form-grid{grid-template-columns:1fr}}
.form-ok{display:none;padding:14px;border:1px solid var(--ok);border-radius:var(--radius-sm);background:rgba(46,125,91,.12);font-size:.88rem}
.form-ok.show{display:block}

/* ============ 博客卡 ============ */
.post-card{display:flex;flex-direction:column;gap:10px}
.post-card .post-meta{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ice-deep)}
.on-polar .post-card .post-meta,.on-polar-deep .post-card .post-meta{color:var(--ice-bright)}
.post-card h3{font-size:1.08rem}
.post-card p{font-size:.88rem;color:#4A6B85}
.on-polar .post-card p,.on-polar-deep .post-card p{color:var(--on-polar-dim)}

/* ============ 移动端底部 CTA ============ */
.mobile-cta{position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:rgba(244,248,251,.97);border-top:1px solid var(--line-light)}
.mobile-cta.show{display:block}
.mobile-cta .btn{width:100%}
@media(min-width:880px){.mobile-cta{display:none!important}}

/* ============ P1e 子页主题背景 hero ============ */
.hero--theme{position:relative;min-height:clamp(260px,38vh,400px);display:flex;align-items:flex-end;overflow:hidden;background:var(--polar-deep)}
.hero--theme img.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62}
.hero--theme .hero-overlay{position:relative;z-index:1;width:100%;padding:clamp(36px,5vw,60px) 0;background:linear-gradient(180deg,rgba(8,47,76,.25),rgba(8,47,76,.85))}
.hero--theme.top{align-items:flex-start}
.hero--theme.top .hero-overlay{background:linear-gradient(0deg,rgba(8,47,76,.25),rgba(8,47,76,.85))}
.hero--theme h1{color:var(--on-polar)}
.hero--theme .eyebrow{color:var(--ice-bright)}
.hero--theme .lede{color:var(--on-polar-dim)}
.hero--theme .crumbs{color:var(--ice-bright)}
.hero--theme .hero-facts{border-top-color:var(--line-dark)}
.hero--theme .hero-facts .fact{color:var(--on-polar-dim)}
.hero--theme .hero-facts .fact b{color:var(--ice-bright)}

/* ============ figure 内联图位（博客/内容页，无分屏） ============ */
.figure{position:relative;border:1px solid var(--line-light);border-radius:var(--radius);overflow:hidden;background:var(--glacier-deep)}
.figure img{width:100%;height:100%;object-fit:cover}
.figure figcaption{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ice-deep);padding:10px 14px;background:#fff;border-top:1px solid var(--line-light)}

/* ============ reveal 动效 ============ */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ============ 通用文本工具 ============ */
.lead{font-size:clamp(1rem,1.5vw,1.14rem)}
.dim{color:#4A6B85}
.on-polar .dim,.on-polar-deep .dim{color:var(--on-polar-dim)}
.center{text-align:center}
.center p{margin-inline:auto}
.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:26px}.mt-4{margin-top:40px}
.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:26px}
.grid-gap-tight{gap:14px}
.checklist li{position:relative;padding:7px 0 7px 28px;font-size:.92rem}
.checklist li::before{content:'';position:absolute;left:0;top:12px;width:14px;height:14px;border:1.5px solid var(--ice);border-radius:3px}
.checklist li::after{content:'';position:absolute;left:4.5px;top:15px;width:5px;height:8px;border-right:2px solid var(--ice-deep);border-bottom:2px solid var(--ice-deep);transform:rotate(40deg)}

/* ============ 移动端排版规格（正文/标签 ≥14px，满足验收机检） ============ */
@media(max-width:880px){
  table.spec{min-width:560px}
  .eyebrow,.nameplate,.crumbs,.card .card-meta,.card .card-more,.post-card .post-meta,.testi .t-meta,.timeline .tl-year,
  .spec-card th,.spec-card .spec-title,.spec-card td,table.spec thead th,table.spec td,
  .hero-facts .fact,.cert-wall .cert,.cert-wall .cert small,.field label,.site-footer h3,.footer-bottom,
  .kv span,.stats-band .stat span,.figure figcaption,.steps .step p,.site-footer .f-note{font-size:14px}
  .brand .brand-sub,.dial .dial-label span{display:none}
}