/* ==========================================================================
   北京明昊商贸有限公司 · minghaotrading.com
   静态展示站点样式  |  响应式 (PC / 平板 / 移动端)
   ========================================================================== */

:root{
  --ink:#0B1622;          /* 夜色玻璃幕墙 */
  --deep:#12283F;         /* 幕墙蓝 */
  --deep-2:#173654;       /* 悬停加亮 */
  --steel:#5A6C7D;        /* 竖挺灰 */
  --line:#D8DEE4;
  --glass:#EDF1F4;        /* 冷调纸面 */
  --paper:#FFFFFF;
  --brass:#B4894A;        /* 大堂灯光 / 镜面雕塑的黄铜 */
  --brass-l:#D2AB6E;

  --f-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","Heiti SC",sans-serif;
  --f-la:"Helvetica Neue",Helvetica,Arial,"Segoe UI",sans-serif;

  --wrap:1200px;
  --pad:clamp(20px,5vw,64px);
  --sec-y:clamp(72px,9vw,140px);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--deep);
  font-family:var(--f-cn);font-size:16px;line-height:1.85;
  letter-spacing:.02em;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol,dl,dd{margin:0;padding:0;list-style:none}
h1,h2,h3{margin:0;font-weight:600;line-height:1.32;letter-spacing:.06em}
p{margin:0}
strong{font-weight:600;color:var(--deep)}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding-inline:var(--pad)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:999;background:var(--brass);color:#fff;padding:10px 16px}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px}

/* ---------- 滚动出现动画 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease) var(--d,0s),transform .9s var(--ease) var(--d,0s)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important}
}

/* ==========================================================================
   导航
   ========================================================================== */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:100;
  background:rgba(11,22,34,0);backdrop-filter:blur(0);
  transition:background .45s var(--ease),backdrop-filter .45s var(--ease),box-shadow .45s var(--ease);
}
.nav__inner{
  max-width:var(--wrap);margin:0 auto;padding:0 var(--pad);
  height:76px;display:flex;align-items:center;gap:24px;
}
.nav.solid{background:rgba(11,22,34,.92);backdrop-filter:saturate(1.4) blur(14px);box-shadow:0 1px 0 rgba(255,255,255,.08)}

.brand{display:flex;align-items:center;gap:12px;color:#fff;flex:0 0 auto}
.brand__mark{width:34px;height:34px;color:var(--brass-l);flex:0 0 auto}
.brand__txt{display:flex;flex-direction:column;line-height:1.15}
.brand__txt b{font-size:17px;font-weight:600;letter-spacing:.2em}
.brand__txt i{font-style:normal;font-family:var(--f-la);font-size:9px;letter-spacing:.28em;color:rgba(255,255,255,.6)}

.nav__links{margin-left:auto;display:flex;gap:clamp(14px,2vw,30px)}
.nav__links a{
  position:relative;color:rgba(255,255,255,.78);font-size:14px;letter-spacing:.1em;
  padding:6px 0;transition:color .3s
}
.nav__links a::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:var(--brass-l);
  transform:scaleX(0);transform-origin:right;transition:transform .4s var(--ease)
}
.nav__links a:hover{color:#fff}
.nav__links a:hover::after,.nav__links a.act::after{transform:scaleX(1);transform-origin:left}
.nav__links a.act{color:#fff}

.nav__act{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.mailbtn{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;letter-spacing:.08em;
  color:var(--brass-l);border:1px solid rgba(210,171,110,.5);padding:8px 15px;border-radius:2px;
  transition:background .35s,color .35s,border-color .35s
}
.mailbtn svg{width:15px;height:15px}
.mailbtn:hover{background:var(--brass);border-color:var(--brass);color:#fff}

.burger{display:none;width:40px;height:34px;border:0;background:transparent;padding:8px 6px;cursor:pointer}
.burger span{display:block;height:1.5px;background:#fff;margin:5px 0;transition:transform .35s var(--ease),opacity .3s}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}

.nav__prog{height:2px;width:0;background:linear-gradient(90deg,var(--brass),var(--brass-l));transition:width .12s linear}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:76px 0 0 0;z-index:99;background:#0B1622;
  padding:24px var(--pad) 40px;display:flex;flex-direction:column;justify-content:space-between;
  opacity:0;transform:translateY(-12px);transition:opacity .4s var(--ease),transform .4s var(--ease);
  overflow-y:auto;pointer-events:none
}
.drawer[hidden]{display:none}          /* 未展开时彻底移出，避免遮挡页面点击 */
.drawer.on{opacity:1;transform:none;pointer-events:auto}
.drawer nav{display:flex;flex-direction:column}
.drawer nav a{
  color:#fff;font-size:19px;letter-spacing:.16em;padding:16px 0;
  border-bottom:1px solid rgba(255,255,255,.09);display:flex;align-items:baseline;gap:16px
}
.drawer nav a em{font-style:normal;font-family:var(--f-la);font-size:11px;letter-spacing:.2em;color:var(--brass-l)}
.drawer__foot{margin-top:32px;display:flex;flex-direction:column;gap:14px}
.drawer__mail{color:var(--brass-l);letter-spacing:.1em;font-size:15px}
.drawer__tel{color:#fff;font-family:var(--f-la);font-size:20px;letter-spacing:.08em}

/* 左侧竖排索引 */
.rail{position:fixed;left:26px;top:50%;transform:translateY(-50%);z-index:60;display:none}
.rail ul{display:flex;flex-direction:column;gap:15px;align-items:center}
.rail__b{
  appearance:none;border:0;background:none;font-family:inherit;
  writing-mode:vertical-rl;text-orientation:upright;
  font-size:11px;letter-spacing:.4em;color:rgba(90,108,125,.55);
  cursor:pointer;transition:color .4s;position:relative;padding:0 0 0 14px
}
.rail__b::before{
  content:"";position:absolute;left:2px;top:50%;width:6px;height:1px;background:currentColor;
  transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease)
}
.rail__b.act{color:var(--brass)}
.rail__b.act::before{transform:scaleX(1)}
.rail__b:hover,.rail__b:focus-visible{color:var(--brass)}
.rail.on-dark .rail__b{color:rgba(255,255,255,.45)}
.rail.on-dark .rail__b.act,.rail.on-dark .rail__b:hover,
.rail.on-dark .rail__b:focus-visible{color:var(--brass-l)}
@media (min-width:1500px){.rail{display:block}}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden;background:var(--ink)}
.hero__bg{position:absolute;inset:0}
.hero__bg img{width:100%;height:100%;object-fit:cover;object-position:center 52%;transform:scale(1.06);animation:heroZoom 14s var(--ease) forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero__veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,22,34,.74) 0%,rgba(11,22,34,.40) 28%,rgba(11,22,34,.74) 62%,rgba(11,22,34,.95) 100%);
}
.hero__inner{position:relative;width:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--pad) clamp(90px,14vh,150px);color:#fff}
.hero__title{font-size:clamp(34px,6.4vw,80px);font-weight:300;letter-spacing:.14em;line-height:1.22;margin:18px 0 22px}
.hero__title .line{display:block}
.hero__title .line:last-child{font-weight:600;letter-spacing:.3em}
.hero__sub{font-size:clamp(14px,1.6vw,18px);letter-spacing:.24em;color:var(--brass-l)}
.hero__lede{margin-top:14px;font-size:clamp(13px,1.4vw,16px);letter-spacing:.1em;color:rgba(255,255,255,.7);max-width:34em}
.hero__cta{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap}
.hero__scroll{
  position:absolute;right:var(--pad);bottom:38px;color:rgba(255,255,255,.5);
  font-family:var(--f-la);font-size:10px;letter-spacing:.34em;display:flex;align-items:center;gap:12px
}
.hero__scroll span{display:block;width:1px;height:46px;background:linear-gradient(180deg,transparent,rgba(255,255,255,.7));animation:scrollpulse 2.4s var(--ease) infinite}
@keyframes scrollpulse{0%{transform:scaleY(.2);opacity:.2}50%{transform:scaleY(1);opacity:1}100%{transform:scaleY(.2);opacity:.2}}

.eyebrow{
  font-family:var(--f-la);font-size:11px;letter-spacing:.34em;text-transform:uppercase;
  color:var(--brass);display:flex;align-items:center;gap:14px
}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--brass);flex:0 0 auto}
.eyebrow--l{color:var(--brass-l)}
.eyebrow--l::before{background:var(--brass-l)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 32px;font-size:14px;letter-spacing:.18em;border-radius:2px;
  transition:background .35s var(--ease),color .35s,border-color .35s,transform .35s var(--ease)
}
.btn:hover{transform:translateY(-2px)}
.btn--gold{background:var(--brass);color:#fff;border:1px solid var(--brass)}
.btn--gold:hover{background:var(--brass-l);border-color:var(--brass-l)}
.btn--ghost{border:1px solid rgba(255,255,255,.45);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}

/* ==========================================================================
   数据条
   ========================================================================== */
.stats{background:var(--ink);color:#fff;padding:clamp(34px,5vw,54px) 0;border-top:1px solid rgba(255,255,255,.08)}
.stats__grid{display:grid;grid-template-columns:repeat(6,1fr);gap:clamp(16px,2vw,28px)}
.stat{display:flex;flex-direction:column;gap:2px;position:relative;padding-left:16px}
.stat::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:rgba(210,171,110,.35)}
.stat b{font-family:var(--f-la);font-size:clamp(24px,3.2vw,38px);font-weight:400;letter-spacing:.02em;line-height:1.1}
.stat i{font-style:normal;font-size:12px;letter-spacing:.14em;color:var(--brass-l);margin-top:2px}
.stat span{font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.55);line-height:1.5}

/* ==========================================================================
   通用区块
   ========================================================================== */
.sec{padding:var(--sec-y) 0;position:relative}
.sec--tint{background:var(--glass)}
.sec--dark{background:var(--ink);color:rgba(255,255,255,.78)}
.sec--contact{background:var(--deep);color:rgba(255,255,255,.8)}

.h2{font-size:clamp(25px,3.4vw,44px);font-weight:300;letter-spacing:.1em;margin:18px 0 22px}
.h2--l{color:#fff}
.h3{font-size:clamp(17px,2vw,22px);letter-spacing:.12em;margin-bottom:22px}
.h3--l{color:#fff;font-size:clamp(17px,2vw,22px);letter-spacing:.12em;margin-bottom:22px;font-weight:600}
.lede{font-size:clamp(15px,1.5vw,17px);line-height:2;color:#31465C;max-width:52em}
.lede--l{color:rgba(255,255,255,.74)}
.p{margin-top:18px;font-size:15px;line-height:2.05;color:var(--steel);max-width:52em}
.sec--dark .p{color:rgba(255,255,255,.6)}
.note{margin-top:22px;font-size:13px;letter-spacing:.06em;color:var(--steel)}

.grid-2{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,72px);align-items:center}
.grid-2--rev .col-img{order:-1}

.fig{margin:0;position:relative}
.fig img{width:100%;height:100%;object-fit:cover}
.fig figcaption{
  margin-top:12px;font-size:12px;letter-spacing:.14em;color:var(--steel);
  display:flex;align-items:center;gap:10px
}
.fig figcaption::before{content:"";width:20px;height:1px;background:var(--brass)}
.fig--dark figcaption{color:rgba(255,255,255,.5)}
.fig--wide{margin-top:clamp(28px,4vw,44px)}

/* 关于 · 支柱 */
.pillars{margin-top:34px;display:flex;flex-direction:column;gap:1px}
.pillars li{background:var(--paper);box-shadow:0 0 0 1px var(--line);padding:20px 0 20px 22px;position:relative;display:flex;flex-direction:column;gap:5px}
.pillars li::before{content:"";position:absolute;left:0;top:24px;width:8px;height:8px;border:1px solid var(--brass);transform:rotate(45deg)}
.pillars b{font-size:15px;letter-spacing:.18em;font-weight:600}
.pillars span{font-size:13.5px;line-height:1.9;color:var(--steel)}

/* 区位卡片 */
.cards3{margin-top:clamp(36px,5vw,56px);display:grid;grid-template-columns:repeat(3,1fr);gap:1px}
.card{background:var(--ink);box-shadow:0 0 0 1px rgba(255,255,255,.11);padding:clamp(24px,3vw,36px) clamp(20px,2.4vw,32px);transition:background .5s var(--ease)}
.card:hover{background:#0F1E2E}
.card__k{
  font-family:var(--f-la);font-size:10px;letter-spacing:.3em;color:var(--brass-l);
  border:1px solid rgba(210,171,110,.4);padding:4px 10px;display:inline-block
}
.card h3{color:#fff;font-size:17px;letter-spacing:.1em;margin:18px 0 12px;font-weight:500}
.card p{font-size:13.5px;line-height:2;color:rgba(255,255,255,.58)}

.mapblock{margin-top:clamp(38px,5vw,64px);display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(28px,4vw,56px);align-items:center}
.tlist{display:flex;flex-direction:column;gap:1px}
.tlist li{background:var(--ink);box-shadow:0 0 0 1px rgba(255,255,255,.12);padding:16px 0 16px 20px;display:flex;flex-direction:column;gap:4px;position:relative}
.tlist li::before{content:"";position:absolute;left:0;top:22px;width:9px;height:1px;background:var(--brass-l)}
.tlist b{color:#fff;font-size:15px;letter-spacing:.14em;font-weight:500}
.tlist span{font-size:13px;color:rgba(255,255,255,.55)}

/* 自贸红利 */
.ftz{margin-top:clamp(36px,5vw,56px);display:grid;grid-template-columns:repeat(2,1fr);gap:1px}
.ftz__i{background:var(--paper);box-shadow:0 0 0 1px var(--line);padding:clamp(26px,3vw,40px)}
.ftz__n{
  font-size:12px;letter-spacing:.34em;color:var(--brass);
  display:inline-block;padding-bottom:8px;border-bottom:1px solid rgba(180,137,74,.35)
}
.ftz__i h3{font-size:19px;letter-spacing:.1em;margin:18px 0 12px;font-weight:600}
.ftz__i p{font-size:14px;line-height:2;color:var(--steel)}

/* 认证与团队 */
.cert{margin-top:clamp(34px,4vw,52px);display:grid;grid-template-columns:1fr 1fr;gap:clamp(20px,3vw,36px)}
.cert__badge{border:1px solid rgba(180,137,74,.4);padding:clamp(22px,2.6vw,32px);background:var(--paper)}
.cert__badge b{display:block;font-family:var(--f-la);font-size:19px;letter-spacing:.14em;color:var(--deep)}
.cert__badge i{display:block;font-style:normal;font-size:12px;letter-spacing:.3em;color:var(--brass);margin:6px 0 14px}
.cert__badge p{font-size:13.5px;line-height:1.95;color:var(--steel)}
.cert__note{grid-column:1/-1;font-size:14px;letter-spacing:.1em;color:var(--deep);border-left:2px solid var(--brass);padding-left:16px}

.teams{margin-top:clamp(30px,4vw,48px);display:grid;grid-template-columns:repeat(4,1fr);gap:1px}
.team{background:var(--glass);box-shadow:0 0 0 1px var(--line);padding:clamp(20px,2.4vw,28px);display:flex;flex-direction:column;gap:6px}
.sec--tint .team{background:var(--paper)}
.team b{font-family:var(--f-la);font-size:20px;letter-spacing:.06em;color:var(--deep)}
.team em{font-style:normal;font-size:12px;letter-spacing:.24em;color:var(--brass)}
.team span{font-size:13px;line-height:1.9;color:var(--steel);margin-top:4px}

.spec{margin-top:clamp(40px,5vw,64px)}
.spec__list{display:grid;grid-template-columns:repeat(2,1fr);gap:1px}
.spec__list>div{background:var(--paper);box-shadow:0 0 0 1px var(--line);padding:18px 22px;display:grid;grid-template-columns:96px 1fr;gap:16px;align-items:baseline}
.spec__list dt{font-size:13px;letter-spacing:.16em;color:var(--brass);font-weight:600}
.spec__list dd{font-size:14px;line-height:1.9;color:var(--deep)}

/* 垂直生态 */
.stackwrap{margin-top:clamp(36px,5vw,56px);display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(30px,4vw,60px);align-items:start}
.stack{display:flex;flex-direction:column;gap:8px}
.floor{
  border:1px solid rgba(255,255,255,.14);padding:18px 22px;display:grid;
  grid-template-columns:82px 1fr;gap:18px;align-items:baseline;
  transition:border-color .5s var(--ease),background .5s var(--ease),transform .5s var(--ease)
}
.floor__f{font-family:var(--f-la);font-size:14px;letter-spacing:.12em;color:var(--brass-l)}
.floor b{grid-column:2;display:block;color:#fff;font-size:16px;letter-spacing:.14em;font-weight:500}
.floor em{grid-column:2;font-style:normal;display:block;font-size:13px;color:rgba(255,255,255,.5);margin-top:4px}
.floor:hover,.floor--on{border-color:rgba(210,171,110,.65);background:rgba(210,171,110,.07)}
.floor:hover{transform:translateX(6px)}

.stack__side{display:grid;grid-template-columns:1fr 1fr;gap:1px}
.mini{background:var(--ink);box-shadow:0 0 0 1px rgba(255,255,255,.12);padding:20px;display:flex;flex-direction:column;gap:4px}
.mini b{font-family:var(--f-la);font-size:clamp(20px,2.4vw,26px);color:#fff;font-weight:400}
.mini span{font-size:12.5px;color:rgba(255,255,255,.5)}
.stack__p{grid-column:1/-1;background:var(--ink);box-shadow:0 0 0 1px rgba(255,255,255,.12);padding:20px;font-size:13.5px;line-height:2;color:rgba(255,255,255,.58)}

/* 空间 */
.chips{margin-top:28px;display:flex;flex-wrap:wrap;gap:9px}
.chips span{
  font-size:13px;letter-spacing:.1em;color:var(--deep);
  border:1px solid var(--line);padding:8px 15px;border-radius:2px;transition:border-color .35s,color .35s
}
.chips span:hover{border-color:var(--brass);color:var(--brass)}
.flow{margin-top:30px;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.flow li{
  font-size:13px;letter-spacing:.14em;color:var(--steel);display:flex;align-items:center;gap:10px
}
.flow li::after{content:"";width:16px;height:1px;background:var(--brass);opacity:.6}
.flow li:last-child::after{display:none}
.flow li:last-child{color:var(--brass)}

/* 影像 */
.gal{margin-top:clamp(30px,4vw,48px);display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(12px,1.6vw,20px)}
.gal__i{margin:0;overflow:hidden;position:relative}
.gal__i--w{grid-column:span 2}
.gal__i img{width:100%;height:clamp(180px,24vw,300px);object-fit:cover;transition:transform 1.1s var(--ease)}
.gal__i:hover img{transform:scale(1.05)}
.gal__i figcaption{margin-top:10px;font-size:12px;letter-spacing:.12em;color:var(--steel)}

/* 联系 */
.cts{margin-top:clamp(36px,4vw,56px);display:grid;grid-template-columns:repeat(2,1fr);gap:1px}
.ct{background:var(--deep);box-shadow:0 0 0 1px rgba(255,255,255,.14);padding:clamp(26px,3vw,40px);display:flex;flex-direction:column;gap:8px;transition:background .45s var(--ease)}
.ct__k{font-size:11px;letter-spacing:.32em;color:var(--brass-l)}
.ct__v{font-family:var(--f-la);font-size:clamp(22px,2.8vw,32px);font-weight:400;color:#fff;letter-spacing:.04em;line-height:1.3}
.ct__v--sm{font-size:clamp(15px,1.8vw,19px);letter-spacing:.06em}
.ct__s{font-size:12.5px;color:rgba(255,255,255,.55);letter-spacing:.06em}
a.ct:hover{background:#173654}
.ct--tel:hover .ct__v{color:var(--brass-l)}

/* 页脚 */
.foot{background:var(--ink);color:rgba(255,255,255,.55);padding:clamp(44px,5vw,64px) 0 34px;font-size:13px}
.foot__inner{display:grid;grid-template-columns:1.1fr 1.4fr;gap:28px 40px;align-items:start}
.foot__brand{display:flex;gap:14px;align-items:center;color:var(--brass-l)}
.foot__brand .brand__mark{width:40px;height:40px}
.foot__brand b{display:block;color:#fff;font-size:15px;letter-spacing:.14em;font-weight:500}
.foot__brand i{font-style:normal;font-family:var(--f-la);font-size:10px;letter-spacing:.2em;color:rgba(255,255,255,.4)}
.foot__nav{display:flex;flex-wrap:wrap;gap:10px 22px;align-content:start}
.foot__nav a{letter-spacing:.1em;transition:color .3s}
.foot__nav a:hover{color:var(--brass-l)}
.foot__meta{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.1);padding-top:20px;margin-top:8px;
  display:flex;flex-wrap:wrap;gap:8px 28px;font-size:12px;color:rgba(255,255,255,.42);letter-spacing:.06em}
.icp a{transition:color .3s}
.icp a:hover{color:var(--brass-l)}

/* 移动端浮动电话 */
.fab{
  position:fixed;right:16px;bottom:18px;z-index:80;display:none;
  align-items:center;gap:7px;background:var(--brass);color:#fff;
  padding:12px 18px;border-radius:40px;box-shadow:0 8px 24px rgba(11,22,34,.28);
  font-size:14px;letter-spacing:.12em
}
.fab svg{width:17px;height:17px}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1080px){
  .stats__grid{grid-template-columns:repeat(3,1fr);row-gap:26px}
  .cards3{grid-template-columns:1fr}
  .mapblock{grid-template-columns:1fr}
  .teams{grid-template-columns:repeat(2,1fr)}
  .stackwrap{grid-template-columns:1fr}
  .gal{grid-template-columns:repeat(2,1fr)}
  .gal__i--w{grid-column:span 2}
  .cts{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:860px){
  .nav__links{display:none}
  .burger{display:block}
  .mailbtn span{display:none}
  .mailbtn{padding:9px 11px}
  .nav__act{margin-left:auto}
  .grid-2,.grid-2--rev{grid-template-columns:1fr}
  .grid-2--rev .col-img{order:0}
  .ftz{grid-template-columns:1fr}
  .cert{grid-template-columns:1fr}
  .spec__list{grid-template-columns:1fr}
  .stack__side{grid-template-columns:1fr 1fr}
  .foot__inner{grid-template-columns:1fr}
  .fab{display:inline-flex}
  .hero__scroll{display:none}
  .foot{padding-bottom:92px}
}

@media (max-width:560px){
  body{font-size:15px}
  .nav__inner{height:64px}
  .drawer{inset:64px 0 0 0}
  .stats__grid{grid-template-columns:repeat(2,1fr)}
  .hero__title{letter-spacing:.1em}
  .hero__title .line:last-child{letter-spacing:.24em}
  .eyebrow{font-size:10px;letter-spacing:.26em}
  .eyebrow::before{width:22px}
  .spec__list>div{grid-template-columns:1fr;gap:4px}
  .gal__i,.gal__i--w{grid-column:span 2}
  .floor{grid-template-columns:70px 1fr;gap:12px;padding:15px 16px}
  .pillars li{padding-left:20px}
  .foot__meta{flex-direction:column;gap:6px}
}

/* ==========================================================================
   多语言：字体、语言切换器、英文排版微调
   ========================================================================== */
html[lang="zh-Hant"] body{
  font-family:"PingFang TC","Hiragino Sans CNS","Microsoft JhengHei","Noto Sans TC","PingFang SC","Microsoft YaHei",sans-serif;
}
html[lang="en"] body{
  font-family:"Helvetica Neue",Helvetica,Arial,"Segoe UI",Roboto,sans-serif;
  letter-spacing:0;line-height:1.75;
}
.lang-en h1,.lang-en .h2,.lang-en .h3,.lang-en .h3--l{letter-spacing:.01em}
.lang-en .hero__title{letter-spacing:.02em;font-weight:300}
.lang-en .hero__title .line:last-child{letter-spacing:.08em;font-weight:600}
.lang-en .hero__sub{letter-spacing:.12em}
.lang-en .hero__lede,.lang-en .lede,.lang-en .p{letter-spacing:0}
.lang-en .nav__links a{font-size:13px;letter-spacing:.06em}
.lang-en .floor b,.lang-en .tlist b,.lang-en .pillars b,.lang-en .hkpts b{letter-spacing:.04em}
.lang-en .chips span,.lang-en .flow li{letter-spacing:.04em}
.lang-en .btn{letter-spacing:.1em}
.lang-en .card h3,.lang-en .ftz__i h3{letter-spacing:.02em}
.lang-en .spec__list>div{grid-template-columns:118px 1fr}
.lang-en .rail__b{letter-spacing:.16em;writing-mode:vertical-rl;text-orientation:sideways}

/* 语言切换器 */
.lang{display:flex;align-items:center;border:1px solid rgba(255,255,255,.22);border-radius:2px;overflow:hidden}
.lang__b{
  padding:6px 10px;font-size:12px;line-height:1.4;letter-spacing:.06em;
  color:rgba(255,255,255,.6);transition:background .3s,color .3s;
  border-right:1px solid rgba(255,255,255,.16)
}
.lang__b:last-child{border-right:0}
.lang__b:hover{color:#fff;background:rgba(255,255,255,.08)}
.lang__b.act{background:var(--brass);color:#fff}
.lang--drawer{align-self:flex-start;border-color:rgba(255,255,255,.28)}
.lang--drawer .lang__b{padding:9px 16px;font-size:14px}

/* ==========================================================================
   香港平台
   ========================================================================== */
.grid-2--hk{align-items:start}
.hkpts{margin-top:32px;display:flex;flex-direction:column;gap:1px}
.hkpts li{
  background:var(--paper);box-shadow:0 0 0 1px var(--line);
  padding:18px 20px 18px 22px;position:relative;display:flex;flex-direction:column;gap:5px
}
.hkpts li::before{content:"";position:absolute;left:0;top:24px;width:9px;height:1px;background:var(--brass)}
.hkpts b{font-size:15px;letter-spacing:.14em;font-weight:600}
.hkpts span{font-size:13.5px;line-height:1.95;color:var(--steel)}

.doc{background:var(--paper);box-shadow:0 0 0 1px var(--line);padding:clamp(24px,3vw,34px)}
.doc__top{display:flex;align-items:center;gap:14px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.doc__seal{width:38px;height:38px;color:var(--brass);flex:0 0 auto}
.doc__seal svg{width:100%;height:100%}
.doc__top b{font-size:15px;letter-spacing:.16em;font-weight:600;color:var(--deep)}
.doc__list{margin-top:6px}
.doc__list>div{padding:13px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:92px 1fr;gap:14px;align-items:baseline}
.lang-en .doc__list>div{grid-template-columns:124px 1fr}
.doc__list dt{font-size:12px;letter-spacing:.14em;color:var(--brass);font-weight:600}
.doc__list dd{font-size:13.5px;line-height:1.75;color:var(--deep);word-break:break-word}
.doc__note{margin-top:16px;font-size:12px;line-height:1.85;color:var(--steel)}

@media (max-width:860px){
  .lang{margin-right:2px}
  .lang__b{padding:6px 8px;font-size:11px}
  .hkpts li{padding-left:20px}
}
@media (max-width:560px){
  .doc__list>div,.lang-en .doc__list>div{grid-template-columns:1fr;gap:3px}
}


/* ---------- 多语言版本的移动端与英文排版修正 ---------- */
.lang-en .hero__title{font-size:clamp(28px,4.6vw,58px)}
.lang-en .hero__sub{letter-spacing:.06em}
.lang-en .hero__eyebrow,.lang-en .eyebrow{letter-spacing:.24em}
.lang-en .doc__list>div{grid-template-columns:140px 1fr}
.lang-en .drawer nav a{letter-spacing:.06em}
.lang-en .foot__brand b{letter-spacing:.08em}

@media (max-width:860px){
  .nav__act{gap:10px}
}
@media (max-width:560px){
  .mailbtn{display:none}
  .lang__b{padding:7px 9px;font-size:11.5px}
  .drawer nav a{font-size:17px;padding:13px 0}
  .drawer__foot{margin-top:22px;gap:12px}
  .drawer__tel{font-size:18px}
}

/* 英文版不使用竖排索引（直排是中文的排版惯例） */
html[lang="en"] .rail{display:none}
.lang-en .fig figcaption,.lang-en .gal__i figcaption{letter-spacing:.04em}
.lang-en .doc__list dt,.lang-en .spec__list dt,.lang-en .ct__k,
.lang-en .team em,.lang-en .ftz__n,.lang-en .card__k{letter-spacing:.08em}
.lang-en .stat span,.lang-en .mini span,.lang-en .tlist span{letter-spacing:.02em}

@media (max-width:640px){.cts{grid-template-columns:1fr}}


/* ==========================================================================
   坐标与地图入口（无第三方 SDK，纯链接）
   ========================================================================== */
.geo{
  margin-top:clamp(30px,4vw,48px);
  display:grid;grid-template-columns:auto 1fr;gap:clamp(20px,3vw,44px);align-items:center;
  box-shadow:0 0 0 1px rgba(255,255,255,.12);padding:clamp(22px,2.6vw,30px)
}
.geo__k{font-size:11px;letter-spacing:.3em;color:var(--brass-l);display:block;margin-bottom:8px}
.geo__v{font-family:var(--f-la);font-size:clamp(17px,2vw,22px);color:#fff;letter-spacing:.04em;display:block}
.geo__s{font-size:12px;color:rgba(255,255,255,.45);letter-spacing:.04em;display:block;margin-top:6px}
.geo__links{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-end}
.geo__b{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(255,255,255,.24);padding:10px 18px;border-radius:2px;
  font-size:13px;letter-spacing:.1em;color:rgba(255,255,255,.82);
  transition:background .35s,border-color .35s,color .35s
}
.geo__b:hover{background:rgba(210,171,110,.14);border-color:var(--brass-l);color:#fff}
.geo__b svg{width:14px;height:14px;flex:0 0 auto}
@media (max-width:860px){
  .geo{grid-template-columns:1fr;gap:18px}
  .geo__links{justify-content:flex-start}
}