/* ============================================================
   XIANG TAI — Design System
   依据 XIANGTAI VIS.pdf + XIANGTAI LOGO方案.pdf（方案一）
     主色  #20499B   deep blue
     辅色  #3E9AD5   azure
   基调：白底为主，蓝色成块，标识用全彩版置于白底
   ============================================================ */

:root{
  --blue:#20499B;
  --blue-lt:#3E9AD5;
  --blue-deep:#16366E;
  --blue-darkest:#122A55;
  --blue-soft:#E8F0FA;

  --white:#FFFFFF;
  --paper:#F7F9FC;
  --paper-2:#EEF3F9;
  --line:#DCE4ED;

  --text:#16202B;
  --text-mut:#5A6875;
  --text-dim:#A9BCCE;

  --serif:'Libre Baskerville','Times New Roman',Georgia,serif;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--white);color:var(--text);font-family:var(--sans);font-weight:400;-webkit-font-smoothing:antialiased;line-height:1.6}
img,svg{max-width:100%}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
@media(min-width:900px){.wrap{padding:0 56px}}

/* ---------- atoms ---------- */
.label{font-size:10px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--blue)}
.label--dim{color:#8496A8}
.sec-title{font-family:var(--serif);font-weight:400;font-size:clamp(26px,3.4vw,42px);line-height:1.2;letter-spacing:-.01em;margin-top:18px}
.body-text{font-size:clamp(13px,1.5vw,15px);font-weight:300;line-height:1.95;color:var(--text-mut);max-width:660px}
.body-text + .body-text{margin-top:18px}
.small{font-size:12px;line-height:1.8;color:var(--text-mut);font-weight:300}

.cta{display:inline-flex;align-items:center;gap:12px;font-size:10px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--blue);text-decoration:none}
.cta svg{transition:transform .25s ease}
.cta:hover svg{transform:translateX(5px)}
.cta--light{color:var(--blue-lt)}
.cta--light svg path{stroke:var(--blue-lt)}

.btn{display:inline-block;padding:16px 30px;border-radius:2px;background:var(--blue);color:#fff;font-size:10px;font-weight:600;letter-spacing:.2em;text-transform:uppercase;text-decoration:none;transition:background .25s ease,transform .25s ease}
.btn:hover{background:var(--blue-lt);transform:translateY(-1px)}

/* ---------- header：白底 + 全彩标识 ---------- */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(150%) blur(12px);-webkit-backdrop-filter:saturate(150%) blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;text-decoration:none}
.brand img{height:38px;width:auto;display:block}
.nav-links{display:none;gap:30px;align-items:center}
.nav-links a{font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:#6B7B8C;text-decoration:none;transition:color .2s}
.nav-links a:hover,.nav-links a.on{color:var(--blue)}
.nav-right{display:flex;align-items:center;gap:18px}
.lang{display:flex;gap:9px;align-items:center;font-size:10px;letter-spacing:.12em}
.lang span{color:#C3CDD8}
.lang b{color:var(--blue);font-weight:600}
.lang i{color:#94A4B4;font-style:normal;cursor:default}
.menu-btn{width:34px;height:34px;display:flex;align-items:center;justify-content:center;background:none;border:1px solid var(--line);border-radius:2px;cursor:pointer}
@media(min-width:980px){
  .nav{height:78px}
  .nav-links{display:flex}
  .menu-btn{display:none}
  .brand img{height:46px}
}

/* ---------- hero（白底） ---------- */
.hero{background:var(--white);color:var(--text);position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr;align-items:stretch}
.hero-grid > *{min-width:0}
.hero-copy{padding:56px 0 44px}
.hero h1{font-family:var(--serif);font-weight:400;font-size:clamp(32px,5.4vw,56px);line-height:1.18;letter-spacing:-.01em;margin-top:22px;max-width:13em}
.hero .lede{font-size:clamp(13px,1.6vw,16px);font-weight:300;line-height:1.8;color:var(--text-mut);max-width:32em;margin-top:26px}
.hero .cta{margin-top:32px}
.hero-media{position:relative;min-height:260px;background:var(--paper-2);overflow:hidden}
.hero-media img{width:100%;height:100%;object-fit:cover;display:block}
@media(min-width:900px){
  .hero-grid{grid-template-columns:1.02fr .98fr;min-height:clamp(540px,76vh,720px)}
  .hero-copy{display:flex;flex-direction:column;justify-content:center;padding:72px 0}
  .hero-media{min-height:100%}
}

/* ---------- interior page hero ---------- */
.phero{background:var(--paper);color:var(--text);position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.phero-grid{display:grid;grid-template-columns:1fr;align-items:stretch}
.phero-grid > *{min-width:0}
.phero-copy{padding:52px 0 44px}
.phero h1{font-family:var(--serif);font-weight:400;font-size:clamp(28px,4.4vw,48px);line-height:1.18;letter-spacing:-.01em;margin-top:18px;max-width:16em}
.phero .lede{font-size:clamp(13px,1.5vw,16px);font-weight:300;line-height:1.85;color:var(--text-mut);max-width:44em;margin-top:20px}
.phero-media{position:relative;min-height:220px;background:var(--paper-2);overflow:hidden}
.phero-media img{width:100%;height:100%;object-fit:cover;display:block}
@media(min-width:900px){
  .phero-grid{grid-template-columns:1.15fr .85fr;min-height:400px}
  .phero-copy{display:flex;flex-direction:column;justify-content:center;padding:80px 0}
}

/* ---------- sections ---------- */
section{padding:72px 0}
@media(min-width:900px){section{padding:100px 0}}
.sec-head{max-width:700px}
.sec-head .body-text{margin-top:24px}

.sec--navy{background:var(--blue);color:#fff}
.sec--navy .sec-title{color:#fff}
.sec--navy .body-text{color:#CFE0F2}
.sec--deep{background:var(--blue-deep);color:#fff}
.sec--deep .sec-title{color:#fff}
.sec--deep .body-text{color:#CFE0F2}
.sec--paper2{background:var(--paper-2)}

/* facts */
.facts{display:grid;grid-template-columns:1fr;gap:28px;margin-top:52px;padding-top:34px;border-top:1px solid var(--line)}
@media(min-width:700px){.facts{grid-template-columns:repeat(2,1fr);gap:40px}}
.fact-k{font-size:9px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:#8496A8}
.fact-v{font-family:var(--serif);font-size:20px;margin-top:8px;color:var(--text)}

/* image primitives */
.shot{position:relative;overflow:hidden;background:var(--paper-2);border-radius:2px}
.shot img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .9s cubic-bezier(.22,.61,.36,1)}
.shot:hover img{transform:scale(1.03)}
.shot--4x3{aspect-ratio:4/3}
.shot--16x9{aspect-ratio:16/9}
.shot--3x4{aspect-ratio:3/4}
.shot--21x9{aspect-ratio:21/9}
@media(max-width:699px){.shot--21x9{aspect-ratio:16/10}}

.band{position:relative;overflow:hidden;background:var(--paper-2)}
.band img{width:100%;height:clamp(240px,42vh,460px);object-fit:cover;display:block}
.band-cap{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(180deg,rgba(22,54,110,0),rgba(22,54,110,.85));padding:48px 0 18px}
.band-cap .wrap{display:flex;justify-content:space-between;gap:20px;align-items:baseline}
.band-cap span{font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:#CFE0F2}

/* media + text split */
.split{display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
.split > *{min-width:0}
@media(min-width:900px){
  .split{grid-template-columns:1fr 1fr;gap:64px}
  .split--media-right .split-media{order:2}
}

/* pillars */
.pillar-grid{margin-top:56px;display:grid;grid-template-columns:1fr;border-top:1px solid rgba(255,255,255,.28)}
@media(min-width:820px){.pillar-grid{grid-template-columns:1fr 1fr;column-gap:56px}}
.pillar{padding:26px 0;border-bottom:1px solid rgba(255,255,255,.22);display:flex;gap:18px}
.pillar-i{font-family:var(--serif);font-size:13px;font-weight:400;letter-spacing:.08em;color:#fff;opacity:.72;flex:0 0 auto;padding-top:6px}
.pillar h3{font-family:var(--serif);font-size:clamp(19px,2.1vw,25px);font-weight:400;color:#fff;line-height:1.3}
.pillar p{font-size:12.5px;font-weight:300;line-height:1.85;color:#CFE0F2;margin-top:9px;max-width:34em}

/* region list */
.net-grid{margin-top:52px;display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:760px){.net-grid{grid-template-columns:1fr 1fr;gap:40px 44px}}
.region{display:block;text-decoration:none;color:inherit}
.region .shot{margin-bottom:16px}
.region h3{font-family:var(--serif);font-size:21px;font-weight:400;color:var(--text);display:flex;align-items:baseline;justify-content:space-between;gap:16px}
.region h3 em{font-family:var(--sans);font-size:9px;font-style:normal;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:#8496A8}
.region p{font-size:12px;line-height:1.75;color:var(--text-mut);margin-top:8px}

/* values */
.val-grid{margin-top:52px;display:grid;grid-template-columns:1fr;gap:34px}
@media(min-width:820px){.val-grid{grid-template-columns:repeat(3,1fr);gap:44px}}
.val{border-top:1px solid var(--line);padding-top:22px}
.val h3{font-family:var(--serif);font-size:clamp(21px,2.3vw,27px);font-weight:400;color:var(--text);line-height:1.3}
.val p{font-size:12.5px;font-weight:300;line-height:1.85;color:var(--text-mut);margin-top:10px}
.sec--deep .val{border-top-color:rgba(255,255,255,.28)}
.sec--deep .val h3{color:#fff}
.sec--deep .val p{color:#CFE0F2}

/* hub card */
.hub{background:var(--blue-deep);color:#fff;padding:28px 26px;border-radius:2px}
.hub-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:18px 0}
.hub-row + .hub-row{border-top:1px solid rgba(255,255,255,.2)}
.hub-row h4{font-family:var(--serif);font-size:21px;font-weight:400;color:#fff}
.hub-row span{font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;color:#CFE0F2;text-align:right}
.hub-note{font-size:11px;font-weight:300;line-height:1.85;color:#B9CEE4;margin-top:18px;padding-top:18px;border-top:1px solid rgba(255,255,255,.2)}

/* cards */
.cards{display:grid;grid-template-columns:1fr;gap:0;margin-top:48px;border-top:1px solid var(--line);border-left:1px solid var(--line)}
@media(min-width:760px){.cards{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1080px){.cards--3{grid-template-columns:repeat(3,1fr)}}
.card{background:#fff;padding:30px 26px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.card h3{font-family:var(--serif);font-size:20px;font-weight:400;line-height:1.35}
.card p{font-size:12px;line-height:1.8;color:var(--text-mut);margin-top:10px}
.card .label{margin-bottom:14px;display:block}
.sec--navy .cards,.sec--deep .cards{border-color:rgba(255,255,255,.24)}
.sec--navy .card,.sec--deep .card{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.2)}
.sec--navy .card h3,.sec--deep .card h3{color:#fff}
.sec--navy .card p,.sec--deep .card p{color:#CFE0F2}
.sec--navy .card .label--dim,.sec--deep .card .label--dim{color:#9FC0E0}

/* numbered list */
.numlist{margin-top:40px;border-top:1px solid var(--line)}
.numlist li{list-style:none;display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line);font-size:12.5px;line-height:1.8;color:var(--text-mut)}
.numlist li b{font-family:var(--serif);font-weight:400;color:var(--blue);flex:0 0 22px}
.numlist--ink{border-top-color:rgba(255,255,255,.24)}
.numlist--ink li{border-bottom-color:rgba(255,255,255,.18);color:#CFE0F2}
.numlist--ink li b{color:#fff;opacity:.75}

/* featured project */
.project{margin-top:30px;padding:22px 24px;background:var(--blue-soft);border-left:2px solid var(--blue)}
.project-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 14px;margin-bottom:10px}
.project-name{font-family:var(--serif);font-size:18px;color:var(--text)}
.project-role{font-size:9px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--blue)}
.project-desc{font-size:12px;font-weight:300;line-height:1.85;color:var(--text-mut);margin-bottom:14px}

/* shareholders */
.shareholders{margin-top:44px;border-top:1px solid var(--line)}
.sh-row{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px 24px;padding:20px 0;border-bottom:1px solid var(--line)}
.sh-name{font-family:var(--serif);font-size:20px;color:var(--text)}
.sh-name span{display:block;font-family:var(--sans);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:#8496A8;margin-top:5px}
.sh-pct{font-family:var(--serif);font-size:26px;color:var(--blue)}

/* case cards */
.casecards{display:grid;grid-template-columns:1fr;gap:28px;margin-top:48px}
@media(min-width:760px){.casecards{grid-template-columns:1fr 1fr}}
.casecard{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:2px;overflow:hidden;text-decoration:none;color:inherit;transition:box-shadow .3s ease,transform .3s ease}
.casecard:hover{box-shadow:0 18px 40px -24px rgba(32,73,155,.38);transform:translateY(-2px)}
.casecard .shot{border-radius:0}
.casecard-body{padding:22px 22px 26px;display:flex;flex-direction:column;flex:1}
.casecard-region{font-size:9px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--blue)}
.casecard h3{font-family:var(--serif);font-size:21px;font-weight:400;line-height:1.3;margin-top:10px}
.casecard p{font-size:12px;font-weight:300;line-height:1.85;color:var(--text-mut);margin-top:10px;flex:1}
.casecard-tag{display:inline-block;margin-top:18px;font-size:9px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:#8496A8}

/* tags */
.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.tag{border:1px solid var(--line);padding:9px 16px;border-radius:2px;font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--text-mut);background:#fff}

/* contact */
.contact{background:var(--blue-deep);color:#fff}
.contact .sec-title{color:#fff}
.contact .body-text{color:#CFE0F2}
.contact .btn{margin-top:34px;background:#fff;color:var(--blue-deep)}
.contact .btn:hover{background:var(--blue-soft)}
.placeholder-row{margin-top:44px;padding-top:26px;border-top:1px solid rgba(255,255,255,.25);display:flex;flex-wrap:wrap;gap:10px 44px}
.placeholder-row span{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:#B9CEE4}
.placeholder-row em{display:block;font-family:var(--serif);font-size:14px;font-style:italic;color:#DCEAF7;letter-spacing:0;text-transform:none;margin-top:4px}

/* page nav */
.pagenav{border-top:1px solid var(--line)}
.pagenav a{display:flex;align-items:baseline;justify-content:space-between;gap:20px;text-decoration:none;padding:16px 0}
.pagenav .k{font-size:9px;letter-spacing:.16em;text-transform:uppercase;color:#8496A8}
.pagenav .v{font-family:var(--serif);font-size:22px;color:var(--text);transition:color .2s}
.pagenav a:hover .v{color:var(--blue)}

/* footer */
footer{background:var(--blue-darkest);color:#fff;padding:60px 0 40px}
.foot-top{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.16)}
@media(min-width:760px){.foot-top{grid-template-columns:1.3fr 1fr 1fr 1fr}}
.foot-brand{display:flex;align-items:center;gap:14px}
.foot-brand img{height:clamp(38px,4.4vw,50px);width:auto;display:block;flex:0 0 auto}
.foot-brand-name{display:block;font-family:var(--serif);font-weight:400;font-size:clamp(16px,1.9vw,20px);letter-spacing:.16em;line-height:1.15;color:#fff;text-transform:uppercase}
.foot-brand-name em{display:block;font-family:var(--sans);font-style:normal;font-size:9px;font-weight:400;letter-spacing:.15em;color:#93B2CE;margin-top:7px;text-transform:uppercase}
.foot-tag{font-size:11.5px;font-weight:300;line-height:1.9;color:#A8C2DA;margin-top:16px;max-width:24em}
.foot-col h5{font-size:9px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:#7E9CBB;margin-bottom:14px}
.foot-col a,.foot-col span{display:block;font-size:11px;color:#B9CEE4;text-decoration:none;padding:5px 0;transition:color .2s}
.foot-col a:hover{color:#fff}
.foot-bottom{display:flex;flex-wrap:wrap;gap:10px 32px;justify-content:space-between;padding-top:24px;font-size:9px;letter-spacing:.08em;color:#7E9CBB;text-transform:uppercase}
.foot-credits{font-size:9.5px;line-height:1.7;color:#6C89A8;margin-top:14px;letter-spacing:0;text-transform:none;max-width:70em}

/* reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .8s cubic-bezier(.22,.61,.36,1),transform .8s cubic-bezier(.22,.61,.36,1)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  .shot:hover img{transform:none}
}


/* ============================================================
   2026-11-06 增强层：移动端抽屉菜单 / 无障碍焦点 / 阅读辅助
   由 assets/site.js 驱动，纯附加，不改变原有版式
   ============================================================ */
html{scroll-padding-top:90px}
img{background:#F2F5F9}

/* 跳转到正文（键盘 Tab 首项才可见） */
.skip{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0}
.skip:focus,.skip:focus-visible{position:fixed;top:14px;left:14px;width:auto;height:auto;margin:0;overflow:visible;clip:auto;clip-path:none;z-index:9999;background:var(--blue);color:#fff;padding:12px 20px;font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;text-decoration:none;box-shadow:0 8px 24px rgba(18,42,85,.25)}

/* 键盘焦点可见 */
:focus-visible{outline:2px solid var(--blue-lt);outline-offset:3px}
.btn:focus-visible,.cta:focus-visible,.menu-btn:focus-visible,.to-top:focus-visible{outline:2px solid var(--blue-lt);outline-offset:4px}

/* 顶栏滚动后投影 */
header{transition:box-shadow .3s ease}
header.is-scrolled{box-shadow:0 2px 20px rgba(18,42,85,.08)}

/* 移动端抽屉 */
.nav-backdrop{position:fixed;left:0;right:0;top:64px;bottom:0;background:rgba(12,28,56,.36);opacity:0;pointer-events:none;transition:opacity .28s ease;z-index:48}
body.nav-open .nav-backdrop{opacity:1;pointer-events:auto}
body.nav-open .menu-btn{background:var(--blue-soft);border-color:#BFD3EA}
body.nav-open .menu-btn svg{transform:rotate(90deg)}
.menu-btn svg{transition:transform .25s ease}

@media(max-width:1119.98px){
  body.nav-open .nav-links{
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    position:fixed;left:0;right:0;top:64px;z-index:49;
    background:#fff;border-bottom:1px solid var(--line);
    padding:8px 24px 22px;
    box-shadow:0 24px 48px rgba(18,42,85,.10);
    max-height:calc(100vh - 64px);overflow-y:auto;
  }
  body.nav-open .nav-links a{
    padding:16px 0;font-size:11.5px;letter-spacing:.14em;
    border-bottom:1px solid #EFF4FA;
  }
  body.nav-open .nav-links a:last-child{border-bottom:0}
  body.nav-open .nav-links a.on{color:var(--blue)}
}

/* 回到顶部 */
.to-top{position:fixed;right:20px;bottom:20px;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--blue);display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity .28s ease,transform .28s ease,background .2s ease;z-index:40;box-shadow:0 8px 24px rgba(18,42,85,.14)}
.to-top.show{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{background:var(--blue-soft)}
@media(max-width:640px){.to-top{right:14px;bottom:14px;width:40px;height:40px}}

/* 触摸目标与阅读层级微调 */
@media(max-width:640px){
  .foot-col a,.foot-col span{padding:8px 0}
  .body-text{font-size:14px;line-height:1.85}
}


/* ============================================================
   2026-11-06 多语言与表单层
   ============================================================ */
/* 语言切换 */
.lang a{color:#94A4B4;text-decoration:none;font-weight:600;transition:color .2s}
.lang a:hover{color:var(--blue)}
.lang a.on{color:var(--blue)}
.lang a.on::after{content:"";display:block;height:1px;background:var(--blue);margin-top:2px}

/* 页脚语言行 */
.foot-lang a{color:#B9CEE4;text-decoration:none;transition:color .2s}
.foot-lang a:hover{color:#fff}
.foot-lang i{font-style:normal;color:#4E6683;margin:0 6px}

/* 面包屑 */
.crumb{padding:18px 0 0;background:var(--white);border-bottom:0}
.crumb .wrap{display:flex;align-items:center;gap:8px;font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:#8496A8}
.crumb a{color:#8496A8;text-decoration:none}
.crumb a:hover{color:var(--blue)}
.crumb span[aria-current]{color:var(--text)}

/* 询价表单 */
.enquiry{margin-top:34px;background:#fff;border:1px solid var(--line);border-radius:3px;padding:clamp(20px,3vw,34px);color:var(--text)}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.f-field{display:block;margin-bottom:16px}
.f-field span{display:block;font-size:10px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:#6B7B8C;margin-bottom:8px}
.f-field span i{color:#C0392B;font-style:normal}
.f-field input,.f-field select,.f-field textarea{width:100%;padding:12px 14px;font-family:inherit;font-size:14px;color:var(--text);background:#FBFCFE;border:1px solid #D9E2EC;border-radius:2px;transition:border-color .2s,box-shadow .2s;appearance:none}
.f-field select{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%236B7B8C'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:34px}
.f-field input:focus,.f-field select:focus,.f-field textarea:focus{outline:none;border-color:var(--blue-lt);box-shadow:0 0 0 3px rgba(62,154,213,.14);background:#fff}
.f-field textarea{resize:vertical;min-height:120px}
.f-field.has-error input,.f-field.has-error select,.f-field.has-error textarea{border-color:#C0392B;background:#FDF6F5}
.f-full{display:block}
.f-check{display:flex;gap:10px;align-items:flex-start;font-size:11.5px;line-height:1.7;color:var(--text-mut);margin:4px 0 18px}
.f-check input{width:15px;height:15px;margin-top:2px;flex:0 0 auto;accent-color:var(--blue)}
.f-check.has-error{color:#C0392B}
.f-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.f-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.f-actions .btn{border:0;cursor:pointer;font-family:inherit}
.f-actions .btn[disabled]{opacity:.55;cursor:default;transform:none}
.f-status{font-size:12.5px;line-height:1.6;margin:0}
.f-status.ok{color:#1E7B4F}
.f-status.err{color:#C0392B}
@media(max-width:640px){.f-row{grid-template-columns:1fr;gap:0}}
@media print{
  header,.to-top,.nav-backdrop,.crumb,.enquiry,.placeholder-row{display:none!important}
  .reveal{opacity:1!important;transform:none!important}
  body{background:#fff}
  a[href^="http"]::after{content:" (" attr(href) ")";font-size:9px;color:#666}
}


/* ============================================================
   2026-11-06 六项主导航（首页/关于我们/核心业务/全球合作/新闻资讯/联系我们）
   ============================================================ */
@media(min-width:1120px){
  .nav-links{display:flex;gap:28px}
  .menu-btn{display:none}
  .nav{gap:24px}
  .brand{flex:0 0 auto}
}
@media(min-width:980px) and (max-width:1119.98px){
  .nav-links{display:none}
  .menu-btn{display:flex}
}
.nav-links a{position:relative;padding:9px 0;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .28s cubic-bezier(.22,.61,.36,1)}
.nav-links a:hover::after,.nav-links a.on::after{transform:scaleX(1)}
.nav-links a.on{color:var(--blue)}
@media(max-width:1119.98px){
  body.nav-open .nav-links a{padding:16px 0}
  body.nav-open .nav-links a::after{display:none}
}


/* ============================================================
   2026-11-06 排版 / 对比度 / 中文字体 精修层
   ============================================================ */
:root{
  --cjk-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
  --cjk-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","WenQuanYi Micro Hei",sans-serif;
}

/* 中文页面：正文用无衬线中文字，标题用中文衬线，字距收紧 */
html[lang="zh-Hans"] body,html[lang="zh-Hant"] body{font-family:var(--cjk-sans)}
html[lang="zh-Hans"] .sec-title,html[lang="zh-Hant"] .sec-title,
html[lang="zh-Hans"] h1,html[lang="zh-Hant"] h1,
html[lang="zh-Hans"] .foot-brand-name,html[lang="zh-Hant"] .foot-brand-name{
  font-family:var(--cjk-serif);letter-spacing:.01em;line-height:1.42
}
html[lang="zh-Hans"] h1,html[lang="zh-Hant"] h1{line-height:1.32}
html[lang="zh-Hans"] .label,html[lang="zh-Hant"] .label{letter-spacing:.14em}
html[lang="zh-Hans"] .body-text,html[lang="zh-Hant"] .body-text{line-height:1.95}

/* 英文/通用排版尺寸 */
.nav-links a{font-size:11.5px;letter-spacing:.11em;color:#4E5F73}
.nav-links a:hover,.nav-links a.on{color:var(--blue)}
.label{font-size:10.5px;letter-spacing:.17em}
.pillar p,.card p,.val p{font-size:14px;line-height:1.72}
.body-text{font-size:15.5px;line-height:1.88}
.lede{font-size:16.5px;line-height:1.75}
.foot-tag{font-size:12.5px;line-height:1.85;color:#A8C2DA}
.foot-col a,.foot-col span{font-size:12px}
.foot-col h5{font-size:9.5px;letter-spacing:.17em}
.foot-bottom{font-size:10px}
.foot-credits{font-size:11px;line-height:1.75;color:#93AFC9}

/* 页脚品牌块：与底色更融合 */
.foot-brand{gap:15px;align-items:center;margin-bottom:2px}
.foot-brand img{height:clamp(32px,3.4vw,40px);opacity:.96}
.foot-brand-name{font-size:clamp(17px,1.6vw,19px);letter-spacing:.18em;line-height:1.2}
.foot-brand-name em{font-size:9.5px;letter-spacing:.19em;color:#A8C2DA;margin-top:6px}
.foot-top{padding-bottom:38px}

@media(max-width:700px){
  .nav-links a{font-size:12px}
  .body-text{font-size:15px;line-height:1.9}
  .pillar p,.card p,.val p{font-size:14.5px;line-height:1.8}
  .foot-credits{font-size:10.5px}
  .foot-brand img{height:34px}
}


/* ============================================================
   2026-11-06 G 版：字号整体放大一档 + 版式细节
   ============================================================ */
:root{
  --fs-scale:1.06;
}
/* 标题 */
.hero h1{font-size:clamp(34px,5.6vw,62px);line-height:1.14;max-width:12.5em}
.phero h1{font-size:clamp(30px,4.6vw,52px);line-height:1.16}
.sec-title{font-size:clamp(28px,3.6vw,46px);line-height:1.24}
.pillar h3{font-size:clamp(20px,2.2vw,27px)}
.region h3{font-size:23px}
.val h3{font-size:clamp(21px,2.3vw,27px)}

/* 正文与辅助文字 */
.lede,.hero .lede,.phero .lede{font-size:clamp(15px,1.5vw,18px);line-height:1.75}
.body-text{font-size:16.5px;line-height:1.85}
.pillar p,.card p,.val p{font-size:15px;line-height:1.72}
.label{font-size:11px;letter-spacing:.16em}
.small{font-size:13px;line-height:1.8}
.cta{font-size:11px;letter-spacing:.16em}
.btn{font-size:11px;padding:18px 34px;letter-spacing:.18em}

/* 导航 */
.nav-links{gap:30px}
.nav-links a{font-size:12.5px;letter-spacing:.1em}
.lang{font-size:11px}
.crumb .wrap{font-size:11px}

/* 页脚 */
.foot-col h5{font-size:10px}
.foot-col a,.foot-col span{font-size:12.5px}
.foot-tag{font-size:13px}
.foot-bottom{font-size:10.5px}
.foot-credits{font-size:11.5px;line-height:1.75}
.foot-brand-name{font-size:clamp(18px,1.7vw,20px)}
.foot-brand-name em{font-size:10px}

/* 中文：字号再大一点，行距更松 */
html[lang="zh-Hans"] .body-text,html[lang="zh-Hant"] .body-text{font-size:16.5px;line-height:2}
html[lang="zh-Hans"] .pillar p,html[lang="zh-Hant"] .pillar p,
html[lang="zh-Hans"] .card p,html[lang="zh-Hant"] .card p{font-size:15px;line-height:1.85}
html[lang="zh-Hans"] .sec-title,html[lang="zh-Hant"] .sec-title{font-size:clamp(29px,3.7vw,47px)}
html[lang="zh-Hans"] .label,html[lang="zh-Hant"] .label{font-size:11.5px}
html[lang="zh-Hans"] .nav-links a,html[lang="zh-Hant"] .nav-links a{font-size:13px;letter-spacing:.08em}

/* 排版质感：标题断行更均衡、段落避免孤字 */
h1,h2,.sec-title{text-wrap:balance}
.body-text,.lede,p{text-wrap:pretty}
@media(prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth}
}

/* 断点同步收放 */
@media(max-width:1119.98px){
  .nav-links a{font-size:13px;padding:18px 0}
}
@media(max-width:700px){
  .hero h1{font-size:31px;line-height:1.28}
  .phero h1{font-size:27px}
  .sec-title{font-size:23px;line-height:1.4}
  .body-text{font-size:15.5px;line-height:1.9}
  .pillar p,.card p,.val p{font-size:15px;line-height:1.8}
  .lede,.hero .lede,.phero .lede{font-size:15.5px}
  .foot-tag{font-size:12.5px}
  .btn{padding:16px 28px}
}


/* 2026-11-06 H 版：logo 按原始形态放大（3 倍图） */
.brand img{height:38px}
@media(min-width:980px){.brand img{height:46px}}
.foot-brand img{height:clamp(56px,5vw,72px);width:auto;display:block;opacity:1}
.foot-brand{display:block;margin-bottom:0}
@media(max-width:700px){
  .brand img{height:34px}
  .foot-brand img{height:52px}
}


/* 2026-11-06 六大板块「主要方向」列表 */
.pillar-list{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px 10px;padding:0;list-style:none}
.pillar-list li{position:relative;padding:5px 12px 5px 22px;border:1px solid rgba(255,255,255,.22);border-radius:2px;font-size:12.5px;line-height:1.5;color:#D6E4F5;letter-spacing:.01em}
.pillar-list li::before{content:"";position:absolute;left:9px;top:50%;width:5px;height:5px;margin-top:-2.5px;border-radius:50%;background:var(--blue-lt)}
@media(max-width:700px){.pillar-list li{font-size:12px;padding:4px 10px 4px 20px}}


/* ============================================================
   2026-11-06 I 版：视觉升级（解决“单一、不够高级”）
   ============================================================ */
/* 首屏：渐变 + 细网格 + 光晕 */
.hero{position:relative;isolation:isolate;background:
  radial-gradient(1100px 560px at 88% -12%, rgba(62,154,213,.20), transparent 62%),
  radial-gradient(820px 460px at 2% 108%, rgba(32,73,155,.12), transparent 60%),
  linear-gradient(180deg,#FFFFFF 0%,#F3F8FD 100%)}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(to right,rgba(32,73,155,.05) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(32,73,155,.05) 1px,transparent 1px);
  background-size:68px 68px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 76%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 76%)}
.hero h1{letter-spacing:-.02em}
.hero .lede{max-width:34em}

/* 小标签前置细线 */
.label{display:inline-flex;align-items:center;gap:10px}
.label::before{content:"";width:26px;height:1px;background:currentColor;opacity:.55;flex:0 0 auto}
html[lang="zh-Hans"] .label::before,html[lang="zh-Hant"] .label::before{width:22px}

/* 标题下渐隐细线 */
.sec-title{position:relative}
.sec-head .sec-title::after{content:"";display:block;width:56px;height:2px;margin-top:20px;
  background:linear-gradient(90deg,var(--blue),var(--blue-lt),transparent)}
.sec--navy .sec-head .sec-title::after,.sec--deep .sec-head .sec-title::after{
  background:linear-gradient(90deg,#8FC2EA,rgba(143,194,234,.15))}

/* 深色区块：径向光晕 + 极细网格 */
.sec--navy{position:relative;isolation:isolate;background:
  radial-gradient(900px 480px at 82% 0%,rgba(62,154,213,.22),transparent 60%),
  linear-gradient(180deg,#16366E 0%,#122A55 100%)}
.sec--deep{position:relative;isolation:isolate;background:
  radial-gradient(760px 420px at 12% 100%,rgba(62,154,213,.16),transparent 62%),
  linear-gradient(180deg,#122A55 0%,#0E2244 100%)}
.sec--navy::before,.sec--deep::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(to right,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:88px 88px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.5),transparent 85%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.5),transparent 85%)}

/* 浅色纸面区块：点阵 */
.sec--paper2{position:relative;isolation:isolate;background:
  radial-gradient(900px 420px at 90% 0%,rgba(62,154,213,.10),transparent 60%),
  linear-gradient(180deg,#F7FAFD 0%,#EEF4FA 100%)}
.sec--paper2::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:radial-gradient(rgba(32,73,155,.10) 1px,transparent 1px);
  background-size:26px 26px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.45),transparent 80%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.45),transparent 80%)}

/* 板块卡：描边 + 悬浮抬升 + 左侧光条 */
.pillar{position:relative;border:1px solid rgba(255,255,255,.16);border-radius:3px;
  padding:26px 24px;background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  transition:transform .3s cubic-bezier(.22,.61,.36,1),border-color .3s,background .3s}
.pillar::after{content:"";position:absolute;left:0;top:22px;bottom:22px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--blue-lt),transparent);opacity:.9}
.pillar:hover{transform:translateY(-4px);border-color:rgba(143,194,234,.4);
  background:linear-gradient(180deg,rgba(255,255,255,.1),rgba(255,255,255,.03))}
@media(prefers-reduced-motion:reduce){.pillar{transition:none}.pillar:hover{transform:none}}

/* 核心价值：大序号 + 细分隔线 */
.val{position:relative;padding-top:26px;border-top:1px solid rgba(255,255,255,.18)}
.val h3{letter-spacing:.01em}
.val::before{content:"";position:absolute;left:0;top:-1px;width:38px;height:2px;background:var(--blue-lt)}

/* 区域卡：图上渐变 + 悬浮 */
.region{position:relative;border-radius:3px;overflow:hidden;background:#fff;border:1px solid var(--line);
  transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s,border-color .3s}
.region:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(18,42,85,.12);border-color:#C9DCF0}
.region .shot{position:relative}
.region .shot::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,42,85,0) 45%,rgba(18,42,85,.28));pointer-events:none}
.region h3,.region p{padding:0 18px}
.region h3{margin-top:16px}
.region p{margin-bottom:18px}

/* 图片统一质感 */
.shot img{filter:saturate(.96) contrast(1.02)}
.shot{background:#E9F0F8}

/* 按钮与 CTA 提升 */
.btn{background:linear-gradient(135deg,var(--blue) 0%,#2A5FB8 100%);box-shadow:0 10px 24px rgba(32,73,155,.22)}
.btn:hover{background:linear-gradient(135deg,#2A5FB8 0%,var(--blue-lt) 100%);transform:translateY(-2px)}
.cta{border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.cta:hover{border-bottom-color:currentColor}

/* 数据条强调 */
.facts{border-top:1px solid var(--line);padding-top:26px;gap:26px}
.fact-k{letter-spacing:.16em}
.fact-v{font-size:22px}

/* 空白节奏：区块上下留白更大 */
section{padding-top:clamp(56px,7vw,96px);padding-bottom:clamp(56px,7vw,96px)}
.sec--navy,.sec--deep{padding-top:clamp(64px,8vw,110px);padding-bottom:clamp(64px,8vw,110px)}


/* 全球区域网络条（纯文字，避免图文错配） */
.region-strip{display:grid;grid-template-columns:repeat(6,1fr);gap:0;border-top:1px solid var(--line);margin-top:40px}
.region-strip > div{padding:26px 20px 4px;border-right:1px solid var(--line);position:relative}
.region-strip > div:last-child{border-right:0}
.region-strip > div::before{content:"";position:absolute;left:20px;top:-1px;width:30px;height:2px;background:var(--blue-lt);opacity:.85}
.rs-k{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);margin-bottom:10px}
.rs-v{font-family:var(--serif);font-size:17px;line-height:1.35;color:var(--text)}
.rs-d{font-size:12.5px;line-height:1.7;color:var(--text-mut);margin-top:8px;font-weight:300}
@media(max-width:1024px){.region-strip{grid-template-columns:repeat(3,1fr)}.region-strip > div:nth-child(3n){border-right:0}.region-strip > div:nth-child(n+4){border-top:1px solid var(--line)}}
@media(max-width:640px){.region-strip{grid-template-columns:repeat(2,1fr)}.region-strip > div{border-right:0;border-top:1px solid var(--line)}.region-strip > div:nth-child(-n+2){border-top:0}}
html[lang="zh-Hans"] .rs-v,html[lang="zh-Hant"] .rs-v{font-family:var(--cjk-serif);font-size:17px}


/* 六大板块补充说明段 */
.pillar-desc{margin-top:10px;font-size:13px;line-height:1.72;color:#AFC6DE;font-weight:300}
@media(max-width:700px){.pillar-desc{font-size:13px;line-height:1.8}}
html[lang="zh-Hans"] .pillar-desc,html[lang="zh-Hant"] .pillar-desc{font-size:13.5px;line-height:1.9}


/* 区域条补充：代表案例 */
.rs-x{margin-top:10px;padding-top:9px;border-top:1px dashed var(--line);font-size:11.5px;line-height:1.65;color:#7A8B9C;font-weight:300}
html[lang="zh-Hans"] .rs-x,html[lang="zh-Hant"] .rs-x{font-size:12px;line-height:1.8}


/* ============================================================
   2026-11-06 新闻列表 + 文章页
   ============================================================ */
.news-list{display:grid;gap:18px;margin-top:34px}
.news-item{display:grid;grid-template-columns:320px 1fr;gap:26px;padding:20px;border:1px solid var(--line);border-radius:3px;background:#fff;text-decoration:none;color:inherit;transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s,border-color .3s}
.news-item:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(18,42,85,.10);border-color:#C9DCF0}
.news-thumb{overflow:hidden;border-radius:2px;background:#E9F0F8}
.news-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease}
.news-item:hover .news-thumb img{transform:scale(1.03)}
.news-meta{display:flex;gap:12px;align-items:center;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#8496A8}
.news-cat{color:var(--blue);font-weight:600}
.news-body h3{font-family:var(--serif);font-size:22px;line-height:1.4;margin:10px 0 8px;color:var(--text)}
.news-body p{font-size:14.5px;line-height:1.8;color:var(--text-mut)}
.news-body .cta{margin-top:14px;display:inline-flex}
@media(max-width:820px){.news-item{grid-template-columns:1fr;gap:16px;padding:16px}.news-body h3{font-size:19px}}

.wrap--article{max-width:820px}
.article{padding-bottom:clamp(48px,6vw,80px)}
.article-head{padding:clamp(24px,3.4vw,44px) 0 0}
.article-head h1{font-family:var(--serif);font-size:clamp(28px,3.4vw,42px);line-height:1.26;margin-top:14px;text-wrap:balance}
.article-head .lede{margin-top:20px;font-size:17px;line-height:1.85;color:var(--text-mut);max-width:none}
.article-figure{margin:36px 0}
.article-figure img{width:100%;height:auto;display:block;border-radius:3px;border:1px solid var(--line);background:#E9F0F8}
.article-figure figcaption{margin-top:10px;font-size:12.5px;line-height:1.7;color:#7A8B9C}
.article-figure--narrow img{max-width:360px;margin:0 auto}
.article-body{margin-top:8px}
.article-body h2{font-family:var(--serif);font-size:clamp(20px,2.2vw,27px);line-height:1.35;margin:38px 0 14px}
.article-body p{font-size:16px;line-height:1.95;color:#3B4A5A;margin-bottom:18px}
.article-cta{display:flex;gap:22px;align-items:center;flex-wrap:wrap;margin:44px 0 0;padding-top:28px;border-top:1px solid var(--line)}
html[lang^="zh"] .article-head h1,html[lang^="zh"] .article-body h2,html[lang^="zh"] .news-body h3{font-family:var(--cjk-serif)}
html[lang^="zh"] .article-body p{font-size:16.5px;line-height:2}
html[lang^="zh"] .article-head .lede{font-size:17px;line-height:1.95}
@media(max-width:700px){.article-head h1{font-size:26px}.article-body p{font-size:15.5px;line-height:1.9}.article-figure{margin:26px 0}}


/* ============================================================
   2026-11-06 手机端触控目标与细节同步
   ============================================================ */
@media(max-width:1119.98px){
  .menu-btn{width:44px;height:44px;border-radius:3px}
  .menu-btn svg{width:18px;height:11px}
  .nav-right{gap:14px}
  .lang{gap:2px;font-size:11px}
  .lang a{display:inline-flex;align-items:center;justify-content:center;min-height:34px;padding:0 7px;border-radius:2px}
  .lang a:active{background:var(--blue-soft)}
  body.nav-open .nav-links a{min-height:52px;display:flex;align-items:center}
}
@media(max-width:700px){
  .crumb .wrap{font-size:11px;padding-top:14px;padding-bottom:10px}
  .crumb a{display:inline-block;padding:4px 0}
  .foot-col a,.foot-col span{padding:9px 0;font-size:12.5px}
  .foot-lang a{display:inline-block;padding:6px 2px}
  .article-body p{font-size:15.5px;line-height:1.9}
  .article-head .lede{font-size:15.5px}
  .news-body .cta{margin-top:12px}
  .article-figure figcaption{font-size:12px}
  .region-strip > div{padding:22px 16px 4px}
}


/* 核心业务节点 */
.node-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:40px}
.node{position:relative;padding:26px 22px;background:#fff;border:1px solid var(--line);border-radius:3px;transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s,border-color .3s}
.node:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(18,42,85,.10);border-color:#C9DCF0}
.node-i{font-family:var(--serif);font-size:13px;letter-spacing:.12em;color:var(--blue);opacity:.75}
.node h3{font-family:var(--serif);font-size:19px;line-height:1.35;margin:10px 0 10px;color:var(--text)}
.node p{font-size:13.5px;line-height:1.75;color:var(--text-mut)}
html[lang^="zh"] .node h3{font-family:var(--cjk-serif);font-size:19px}
html[lang^="zh"] .node p{font-size:14px;line-height:1.9}
@media(max-width:1024px){.node-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.node-grid{grid-template-columns:1fr;gap:14px}.node{padding:20px 18px}}


/* ============================================================
   2026-11-06 常见问题 / 合作项目 / 八项导航
   ============================================================ */
@media(min-width:1120px){.nav-links{gap:17px}.nav-links a{font-size:12px;letter-spacing:.05em}}
@media(min-width:1340px){.nav-links{gap:24px}.nav-links a{font-size:12.5px;letter-spacing:.07em}}

/* FAQ 手风琴 */
.faq{margin-top:24px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{cursor:pointer;list-style:none;padding:20px 42px 20px 0;position:relative;font-family:var(--serif);font-size:19px;line-height:1.5;color:var(--text);transition:color .2s}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-family:var(--sans);font-size:22px;font-weight:300;color:var(--blue);transition:transform .25s ease}
.faq-item[open] summary::after{content:"−"}
.faq-item summary:hover{color:var(--blue)}
.faq-a{padding:0 42px 22px 0}
.faq-a p{font-size:15.5px;line-height:1.9;color:var(--text-mut)}
html[lang^="zh"] .faq-item summary{font-family:var(--cjk-serif)}
html[lang^="zh"] .faq-a p{font-size:16px;line-height:2}

/* 合作项目列表 */
.proj-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:36px}
.proj{padding:26px 24px;background:#fff;border:1px solid var(--line);border-radius:3px;transition:transform .3s cubic-bezier(.22,.61,.36,1),box-shadow .3s,border-color .3s}
.proj:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(18,42,85,.10);border-color:#C9DCF0}
.proj-meta{display:flex;gap:12px;align-items:center;flex-wrap:wrap;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#8496A8}
.proj-region{color:var(--blue);font-weight:600}
.proj h3{font-family:var(--serif);font-size:21px;line-height:1.35;margin:12px 0 10px;color:var(--text)}
.proj p{font-size:14px;line-height:1.8;color:var(--text-mut)}
html[lang^="zh"] .proj h3{font-family:var(--cjk-serif);font-size:20px}
html[lang^="zh"] .proj p{font-size:14.5px;line-height:1.9}

/* 合作流程四步 */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:36px;border-top:1px solid var(--line)}
.step{padding:26px 22px 10px;border-right:1px solid var(--line);position:relative}
.step:last-child{border-right:0}
.step::before{content:"";position:absolute;left:22px;top:-1px;width:32px;height:2px;background:var(--blue-lt)}
.step-i{font-family:var(--serif);font-size:13px;letter-spacing:.1em;color:var(--blue);opacity:.8}
.step h3{font-family:var(--serif);font-size:17px;margin:10px 0 8px}
.step p{font-size:13.5px;line-height:1.75;color:var(--text-mut)}
html[lang^="zh"] .step h3{font-family:var(--cjk-serif)}
html[lang^="zh"] .step p{font-size:14px;line-height:1.85}

@media(max-width:1024px){
  .proj-list{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .step:nth-child(2n){border-right:0}
  .step:nth-child(n+3){border-top:1px solid var(--line);padding-top:24px}
}
@media(max-width:640px){
  .faq-item summary{font-size:17px;padding:18px 34px 18px 0}
  .faq-a{padding-right:34px}
  .steps-grid{grid-template-columns:1fr}
  .step{border-right:0;border-top:1px solid var(--line)}
  .step:first-child{border-top:0}
}


/* ============================================================
   2026-11-06 数据一览 / FAQ 摘要 / 案例内链
   ============================================================ */
.sec--tint{background:linear-gradient(180deg,#F7FAFD 0%,#EEF4FA 100%);position:relative;isolation:isolate}
.sec--tint::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:radial-gradient(rgba(32,73,155,.09) 1px,transparent 1px);background-size:26px 26px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.42),transparent 82%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.42),transparent 82%)}

/* 数据一览 */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
.stat{padding:30px 26px 8px;border-right:1px solid var(--line);position:relative}
.stat:last-child{border-right:0}
.stat::before{content:"";position:absolute;left:26px;top:-1px;width:34px;height:2px;background:var(--blue-lt)}
.stat-n{font-family:var(--serif);font-size:clamp(34px,3.6vw,46px);line-height:1;color:var(--blue);letter-spacing:-.02em}
.stat-k{margin-top:12px;font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--text)}
.stat-d{margin-top:8px;font-size:13px;line-height:1.7;color:var(--text-mut)}
html[lang^="zh"] .stat-n{font-family:var(--cjk-serif)}
html[lang^="zh"] .stat-k{letter-spacing:.1em;font-size:12.5px}
html[lang^="zh"] .stat-d{font-size:13.5px;line-height:1.85}
@media(max-width:1024px){.stats-grid{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2n){border-right:0}.stat:nth-child(n+3){border-top:1px solid var(--line);padding-top:26px}}
@media(max-width:640px){.stats-grid{grid-template-columns:1fr}.stat{border-right:0;border-top:1px solid var(--line);padding:24px 20px 6px}.stat:first-child{border-top:0}}

/* FAQ 摘要（首页） */
.faq--teaser{margin-top:28px;border-top:1px solid var(--line)}
.faq--teaser .faq-item summary{font-size:18px}
.faq--teaser .faq-a p{font-size:15px}

/* 案例内链 */
.zone-more{margin-top:14px;display:inline-flex}
.zone-more svg{transition:transform .25s ease}
.zone-more:hover svg{transform:translateX(5px)}
@media(max-width:700px){.stat-n{font-size:34px}}


/* 数据条去掉大数字后的版式（标签成为主信息） */
.stat{padding:26px 26px 10px}
.stat-k{font-family:var(--serif);font-size:clamp(18px,2vw,22px);font-weight:400;letter-spacing:.02em;text-transform:none;color:var(--text);margin-top:0;line-height:1.35}
.stat-d{margin-top:10px;font-size:13.5px;line-height:1.75;color:var(--text-mut)}
html[lang^="zh"] .stat-k{font-family:var(--cjk-serif);letter-spacing:.02em;font-size:20px}
html[lang^="zh"] .stat-d{font-size:14px;line-height:1.9}
@media(max-width:640px){.stat{padding:22px 20px 8px}.stat-k{font-size:18px}}