/* ============================================================
   崆峒电子 · v3 视觉系统
   参考 Apple.com 的排版与节奏：纯黑/纯白、超大字号、极窄字距、大留白
   ============================================================ */

/* hidden 属性兜底：给元素写了 display 的组件（如 .btn、.morebar）会盖过
   浏览器默认的 [hidden]{display:none}，导致 JS 设 hidden 不生效 —— 统一强制隐藏 */
[hidden]{display:none!important}

:root{
  --black:#000;
  --near:#0a0a0c;
  --grey-900:#1d1d1f;
  --grey-700:#424245;
  --grey-500:#6e6e73;
  --grey-300:#a1a1a6;
  --grey-100:#e8e8ed;
  --grey-50:#f5f5f7;
  --white:#fff;
  --accent:#ff5a1f;
  --accent-dim:#d94a15;
  --font:"Inter","SF Pro Display",-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.16,1,.3,1);
  --nav-h:60px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--black);
  color:var(--grey-50);
  font-size:17px;
  line-height:1.55;
  letter-spacing:-0.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}

/* ---------- 布局 ---------- */
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.wrap-wide{max-width:1440px;margin:0 auto;padding:0 24px}
.s{padding:clamp(80px,10vw,160px) 0}
.s-light{background:var(--grey-50);color:var(--grey-900)}
.s-white{background:var(--white);color:var(--grey-900)}
.s-dark{background:var(--black);color:var(--grey-50)}
.s-near{background:var(--near);color:var(--grey-50)}

/* ---------- 排版 ---------- */
.h-hero{
  font-size:clamp(42px,7.4vw,104px);
  font-weight:600;
  line-height:1.03;
  letter-spacing:-0.045em;
}
.h-lg{font-size:clamp(32px,4.8vw,64px);font-weight:600;line-height:1.06;letter-spacing:-0.04em}
.h-md{font-size:clamp(26px,3vw,40px);font-weight:600;line-height:1.12;letter-spacing:-0.03em}
.h-sm{font-size:clamp(20px,2.2vw,26px);font-weight:600;line-height:1.2;letter-spacing:-0.02em}
.eyebrow{
  font-size:13px;font-weight:600;letter-spacing:0.14em;text-transform:uppercase;
  color:var(--accent);margin-bottom:20px;
}
.p-lead{font-size:clamp(19px,2.1vw,24px);line-height:1.5;letter-spacing:-0.015em;color:var(--grey-300)}
.p-lead.dark{color:var(--grey-500)}
.p-body{font-size:17px;line-height:1.62;color:var(--grey-300)}
.p-body.dark{color:var(--grey-500)}
.tiny{font-size:13px;line-height:1.5;color:var(--grey-500)}
.grad-text{
  background:linear-gradient(180deg,#fff 30%,#8a8a90 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.grad-text-dark{
  background:linear-gradient(180deg,#1d1d1f 30%,#86868b 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.accent{color:var(--accent)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:980px;font-size:16px;font-weight:500;
  letter-spacing:-0.01em;transition:transform .3s var(--ease),background .25s,color .25s,opacity .25s;
  white-space:nowrap;
}
.btn:hover{transform:scale(1.035)}
.btn:active{transform:scale(0.985)}
.btn-fill{background:var(--accent);color:#fff}
.btn-fill:hover{background:var(--accent-dim)}
.btn-light{background:var(--white);color:var(--black)}
.btn-dark{background:var(--grey-900);color:#fff}
.btn-line{border:1px solid rgba(255,255,255,.32);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.6)}
.btn-line-dark{border:1px solid rgba(0,0,0,.28);color:var(--grey-900)}
.btn-line-dark:hover{background:rgba(0,0,0,.05)}
.btn-sm{padding:9px 18px;font-size:14px}
.lnk{display:inline-flex;align-items:center;gap:6px;font-size:17px;color:var(--accent);font-weight:500}
.lnk svg{transition:transform .3s var(--ease)}
.lnk:hover svg{transform:translateX(4px)}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-h);
  background:rgba(10,10,12,.72);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .3s,border-color .3s;
}
.nav__in{max-width:1180px;margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;gap:0}
.nav__logo{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:600;letter-spacing:-0.01em;color:#f5f5f7}
.nav__logo svg{flex:0 0 18px}
.nav__logo-img{height:30px;width:auto;display:block;flex:0 0 auto}
.nav__links{display:flex;align-items:center;gap:32px;margin-left:auto;margin-right:40px}
.nav__links a{font-size:15px;color:rgba(245,245,247,.72);transition:color .2s;padding:8px 0}
.nav__links a:hover{color:#fff}
.nav__links a.on{color:#fff}
.nav__cta{margin-left:12px;height:42px;padding:0 22px;box-sizing:border-box;display:inline-flex;align-items:center;justify-content:center;border-radius:980px;background:var(--accent);color:#fff;font-size:14.5px;font-weight:500;line-height:16px;transition:.2s;flex:0 0 auto}
.nav__cta:hover{background:var(--accent-dim)}
/* 西文字形有 descender（g/y），需上移约 1px 才能视觉居中（line-height 对西文无效，用 padding 平移文字） */
html[lang="en"] .nav__cta{line-height:14px;padding-bottom:2px}
.nav__lang{margin-left:0;height:42px;padding:0 14px;box-sizing:border-box;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(255,255,255,.22);border-radius:980px;font-size:13px;line-height:1;color:rgba(245,245,247,.85);letter-spacing:.02em;transition:.2s;flex:0 0 auto}
.nav__lang:hover{color:#fff;border-color:rgba(255,255,255,.42);background:rgba(255,255,255,.08)}
.prog{position:fixed;top:0;left:0;height:2px;background:var(--accent);z-index:101;width:0;transition:width .1s linear}
.burger{display:none;width:40px;height:40px;align-items:center;justify-content:center;margin-left:auto}
.burger i{display:block;width:18px;height:1.5px;background:#f5f5f7;position:relative;transition:.3s}
.burger i::before,.burger i::after{content:"";position:absolute;left:0;width:18px;height:1.5px;background:#f5f5f7;transition:.3s}
.burger i::before{top:-6px}.burger i::after{top:6px}
.mmenu{
  position:fixed;inset:var(--nav-h) 0 auto 0;z-index:99;background:rgba(10,10,12,.97);
  -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
  padding:18px 24px 32px;display:none;
}
.mmenu.open{display:block}
.mmenu a{display:block;padding:15px 0;font-size:20px;font-weight:500;border-bottom:1px solid rgba(255,255,255,.08)}

/* ---------- 首屏 ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;overflow:hidden;background:#000}
.hero__media{position:absolute;inset:0;will-change:transform}
.hero__media img{width:100%;height:100%;object-fit:cover;object-position:60% center;opacity:0;transform:scale(1.06);transition:opacity 1.8s ease,transform 2.4s var(--ease)}
body.ready .hero__media img{opacity:1;transform:scale(1)}
.hero__scrim{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.92) 0%,rgba(0,0,0,.72) 38%,rgba(0,0,0,.15) 78%)}
.hero__in{position:relative;z-index:2;width:100%;max-width:1180px;margin:0 auto;padding:calc(var(--nav-h) + 40px) 24px 90px}
.hero__eyebrow{
  font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:rgba(245,245,247,.5);
  margin-bottom:26px;opacity:0;transform:translateY(12px);
  transition:opacity .9s var(--ease) .15s,transform .9s var(--ease) .15s;
}
.hero__title{max-width:920px}
.line{display:block;overflow:hidden}
.line > span{display:block;transform:translateY(115%);transition:transform 1.15s var(--ease)}
body.ready .hero__eyebrow{opacity:1;transform:none}
body.ready .line:nth-child(1) > span{transform:none;transition-delay:.18s}
body.ready .line:nth-child(2) > span{transform:none;transition-delay:.30s}
body.ready .line:nth-child(3) > span{transform:none;transition-delay:.42s}
.hero__sub{
  margin-top:30px;max-width:520px;font-size:clamp(17px,1.6vw,21px);line-height:1.5;
  color:rgba(245,245,247,.62);letter-spacing:-0.01em;
  opacity:0;transform:translateY(16px);transition:opacity 1s var(--ease) .6s,transform 1s var(--ease) .6s;
}
.hero__btns{
  display:flex;gap:14px;flex-wrap:wrap;margin-top:40px;
  opacity:0;transform:translateY(16px);transition:opacity 1s var(--ease) .75s,transform 1s var(--ease) .75s;
}
body.ready .hero__sub,body.ready .hero__btns{opacity:1;transform:none}
.hero__scroll{
  position:absolute;left:50%;bottom:34px;transform:translateX(-50%);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:rgba(245,245,247,.4);
  opacity:0;transition:opacity 1s ease 1.4s;
}
body.ready .hero__scroll{opacity:1}
.hero__scroll i{display:block;width:1px;height:34px;background:linear-gradient(180deg,rgba(255,255,255,.5),transparent);animation:drop 2s ease-in-out infinite}
@keyframes drop{0%,100%{transform:scaleY(.4);transform-origin:top;opacity:.4}50%{transform:scaleY(1);transform-origin:top;opacity:1}}

/* ---------- 数字带 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:40px}
.stat b{
  display:block;font-size:clamp(40px,5vw,68px);font-weight:600;line-height:1;
  letter-spacing:-0.045em;font-variant-numeric:tabular-nums;white-space:nowrap;
}
/* 单位后缀（grades / yrs / % / h / 级…）：小一号贴在数字旁，防止长单位换行 */
.stat b .u{display:inline;margin:0;color:inherit;font-size:.42em;font-weight:600;letter-spacing:0;margin-left:.1em}
.stat span{display:block;margin-top:12px;font-size:14px;color:var(--grey-500);letter-spacing:0}

/* ---------- 双栏大卡 ---------- */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.duo__card{
  position:relative;border-radius:22px;overflow:hidden;background:#111;
  min-height:clamp(420px,52vw,620px);display:flex;flex-direction:column;justify-content:flex-end;
  color:#fff;isolation:isolate;
}
.duo__card img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;
  transition:transform 1.2s var(--ease);
}
.duo__card::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(0,0,0,.05) 40%,rgba(0,0,0,.82) 100%);
}
.duo__card:hover img{transform:scale(1.05)}
.duo__body{padding:36px 34px}
.duo__body .tag{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.6)}
.duo__body h3{font-size:clamp(24px,2.6vw,34px);font-weight:600;letter-spacing:-0.03em;margin:12px 0 10px}
.duo__body p{font-size:15px;line-height:1.55;color:rgba(255,255,255,.66);max-width:400px}
.duo__body .lnk{margin-top:20px;color:#fff}

/* ---------- 横向长廊 ---------- */
.rail-outer{overflow:hidden}
.rail{
  --railpad:max(24px,calc((100vw - 1180px)/2 + 24px));
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  overflow-anchor:none;
  padding:0 24px 8px var(--railpad);
  scroll-padding-left:var(--railpad);
  -ms-overflow-style:none;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none}
.rail__item{
  flex:0 0 clamp(270px,29vw,350px);scroll-snap-align:start;
  border-radius:20px;background:#111214;overflow:hidden;position:relative;
  min-height:clamp(300px,34vw,400px);display:flex;flex-direction:column;justify-content:flex-end;
  padding:28px;transition:transform .5s var(--ease),background .4s;
}
.rail__item:hover{transform:translateY(-6px);background:#17181c}
/* 卡片是 <a>：清掉链接默认样式 */
a.rail__item{color:inherit;text-decoration:none;-webkit-tap-highlight-color:transparent}
.rail__item .n{
  position:absolute;top:14px;right:22px;font-size:72px;font-weight:600;line-height:1;
  letter-spacing:-0.06em;color:rgba(255,255,255,.055);font-variant-numeric:tabular-nums;
  transition:color .4s;
}
.rail__item:hover .n{color:rgba(255,255,255,.1)}
.rail__item--accent .n{color:rgba(255,255,255,.2)}
.rail__item .ico{position:absolute;top:26px;left:28px;opacity:.86}
.rail__item .ph{
  position:absolute;left:50%;top:40%;transform:translate(-50%,-50%);
  height:52%;max-height:200px;width:auto;pointer-events:none;
  filter:drop-shadow(0 16px 26px rgba(0,0,0,.5));
  transition:transform .5s var(--ease);
}
.rail__item:hover .ph{transform:translate(-50%,-50%) translateY(-8px) scale(1.03)}
.rail__item h4{font-size:22px;font-weight:600;letter-spacing:-0.02em;margin-bottom:8px}
.rail__item p{font-size:13.5px;line-height:1.5;color:rgba(255,255,255,.5)}
.rail__item .chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.rail__item .chips span{font-size:11px;padding:3px 9px;border-radius:980px;background:rgba(255,255,255,.08);color:rgba(255,255,255,.6)}
.rail__item--accent{background:var(--accent)}
.rail__item--accent p{color:rgba(255,255,255,.75)}
.rail__nav{display:flex;gap:10px;margin-top:26px}
.rail__btn{
  width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.2);
  display:grid;place-items:center;transition:.25s;color:#fff;
}
.rail__btn:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5)}
.rail__btn:disabled{opacity:.25;cursor:default}

/* ---------- 分级列表 ---------- */
.grades{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(40px,6vw,90px);align-items:start}
.glist{border-top:1px solid var(--grey-100)}
.grow{
  display:grid;grid-template-columns:70px 1fr auto;gap:20px;align-items:baseline;
  padding:26px 4px;border-bottom:1px solid var(--grey-100);
  transition:padding-left .4s var(--ease),background .3s;
}
.grow:hover{padding-left:18px;background:rgba(0,0,0,.02)}
.grow .code{font-size:15px;font-weight:600;letter-spacing:.04em;color:var(--accent);font-variant-numeric:tabular-nums}
.grow .name{font-size:20px;font-weight:600;letter-spacing:-0.02em;margin-bottom:5px}
.grow .desc{font-size:14px;line-height:1.55;color:var(--grey-500);max-width:420px}
.grow .pct{font-size:13px;color:var(--grey-500);font-variant-numeric:tabular-nums;white-space:nowrap}

/* ---------- 粘性图文 ---------- */
.pin{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,6vw,90px);align-items:start}
.pin__media{position:sticky;top:calc(var(--nav-h) + 40px);border-radius:22px;overflow:hidden;background:#111}
.pin__media img{width:100%;height:clamp(300px,44vw,520px);object-fit:cover}
.pin__body{display:grid;gap:clamp(40px,6vw,80px);padding:clamp(20px,4vw,60px) 0}
.pin__block h3{font-size:clamp(22px,2.4vw,30px);font-weight:600;letter-spacing:-0.025em;margin-bottom:12px}
.pin__block p{font-size:16px;line-height:1.6;color:var(--grey-300)}

/* ---------- 区域 ---------- */
.maprow{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,6vw,90px);align-items:center}
.mapbox{border-radius:22px;background:#0e0f12;padding:26px;overflow:hidden}
.mapbox svg{width:100%;height:auto;display:block}
.loc{display:grid;gap:0;border-top:1px solid rgba(255,255,255,.12)}
.loc__row{display:grid;grid-template-columns:130px 1fr;gap:24px;padding:22px 0;border-bottom:1px solid rgba(255,255,255,.12);align-items:baseline}
.loc__row b{font-size:14px;font-weight:600;color:#fff;letter-spacing:-0.01em}
.loc__row span{font-size:14px;line-height:1.5;color:rgba(245,245,247,.55)}

/* ---------- CTA ---------- */
.cta{position:relative;overflow:hidden;text-align:center}
.cta::before{
  content:"";position:absolute;left:50%;top:0;width:900px;height:520px;transform:translateX(-50%);
  background:radial-gradient(ellipse at center,rgba(255,90,31,.22),transparent 66%);
  pointer-events:none;
}
.cta__in{position:relative;z-index:2}
.cta .h-lg{margin-bottom:22px}

/* ---------- 页脚 ---------- */
.ftr{background:var(--grey-50);color:var(--grey-500);padding:64px 0 32px;font-size:13px}
.ftr__cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:36px;border-bottom:1px solid var(--grey-100)}
.ftr__brand{display:block;color:var(--grey-900);font-size:15px;font-weight:600}
.ftr__logo{width:auto;height:96px;display:block;margin-bottom:16px}
.ftr__desc{margin-top:0;line-height:1.65;max-width:300px}
.ftr h5{font-size:12px;font-weight:600;color:var(--grey-900);margin-bottom:14px;letter-spacing:0}
.ftr ul{list-style:none;display:grid;gap:9px}
.ftr a:hover{color:var(--grey-900)}
.ftr__bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:22px;font-size:12px}
.ftr__bottom .lgl{display:flex;gap:18px;flex-wrap:wrap}

/* ---------- 列表/表格（子页） ---------- */
.rows{border-top:1px solid var(--grey-100)}
.row{display:grid;grid-template-columns:170px 1fr;gap:28px;padding:24px 0;border-bottom:1px solid var(--grey-100);align-items:baseline}
.row b{font-size:14px;font-weight:600;color:var(--grey-900)}
.row p{font-size:15px;line-height:1.6;color:var(--grey-500)}
.rows--dark{border-color:rgba(255,255,255,.12)}
.rows--dark .row{border-color:rgba(255,255,255,.12)}
.rows--dark .row b{color:#fff}
.rows--dark .row p{color:rgba(245,245,247,.55)}

.feat{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--grey-100);border:1px solid var(--grey-100);border-radius:20px;overflow:hidden}
.feat__i{background:#fff;padding:34px 30px;transition:background .3s}
.feat__i:hover{background:var(--grey-50)}
.feat__i h4{font-size:19px;font-weight:600;letter-spacing:-0.02em;margin-bottom:10px}
.feat__i p{font-size:14px;line-height:1.6;color:var(--grey-500)}
.feat__i .k{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--grey-300);margin-bottom:18px;display:block}

/* 库存表 */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:26px}
.chip{
  padding:9px 18px;border-radius:980px;border:1px solid var(--grey-100);
  background:transparent;font-size:14px;color:var(--grey-500);transition:.2s;
}
.chip:hover{border-color:var(--grey-300);color:var(--grey-900)}
.chip.on{background:var(--grey-900);border-color:var(--grey-900);color:#fff}
.tbl{width:100%;border-collapse:collapse;font-size:14px}
/* 库存表「显示更多」条：首屏只出前 N 条，点按钮追加 */
.morebar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:22px}
.morebar .tiny{margin:0}
.tbl.no-batt th:nth-child(4),.tbl.no-batt td:nth-child(4){display:none}

.tbl th{
  text-align:left;padding:14px 16px;font-size:11px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--grey-300);font-weight:600;border-bottom:1px solid var(--grey-100);white-space:nowrap;
}
.tbl td{padding:16px;border-bottom:1px solid var(--grey-100);vertical-align:middle}
.tbl tr:hover td{background:rgba(0,0,0,.02)}
.tbl .m b{display:block;font-size:15px;font-weight:500;color:var(--grey-900)}
.tbl .m span{display:block;font-size:12.5px;color:var(--grey-500);margin-top:2px}
.tbl .sku{font-size:12px;color:var(--grey-300);font-variant-numeric:tabular-nums}
.bdg{display:inline-block;min-width:26px;text-align:center;padding:3px 8px;border-radius:6px;font-size:12px;font-weight:600}
.b-S{background:#e7f7ee;color:#0d7a45}
.b-A{background:#e8f1ff;color:#1a5cbf}
.b-B{background:#fff4e0;color:#96600a}
.b-C{background:#fdeceb;color:#b02f24}
.b-D{background:#ececef;color:#4a4a52}
.tbl .pr{font-weight:500;font-variant-numeric:tabular-nums;color:var(--grey-900)}
/* 窄屏（手机）：SKU 是内部编号，客户不看；留着它会把型号名挤成五行、价格切成「US$1,3…」。
   隐藏它 + 给表格一个最小宽度，让它横向滚动而不是压缩列 —— 价格必须一屏读得全。 */
@media(max-width:760px){
  /* 手机端：表格改成「一条一卡」。
     原来靠横向滑动看全 8 列，Get quote 在屏外要滑才看得到；
     卡片式把机型、成色、库存、价格、按钮一次摆进拇指区。 */
  .tbl{min-width:0;font-size:15px;display:block}
  .tbl thead{display:none}
  .tbl tbody,.tbl tr,.tbl td{display:block;width:auto}
  .tbl tr{
    display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;
    padding:16px;margin-bottom:12px;
    border:1px solid var(--grey-100);border-radius:16px;background:#fff;
  }
  .tbl td{border:0;padding:0;position:static}
  .tbl td.sku{display:none}
  .tbl td.m{flex:1 1 100%;order:1}
  .tbl td:nth-child(3){order:2}
  .tbl td:nth-child(4),.tbl td:nth-child(5){
    order:3;font-size:13px;color:var(--grey-500);font-variant-numeric:tabular-nums;
  }
  .tbl td[data-label]::before{content:attr(data-label) " ";color:var(--grey-400)}
  .tbl td.pr{order:4;margin-left:auto;font-size:18px}
  .tbl td:nth-child(7){display:none}
  .tbl td:nth-child(8){order:5;flex:1 1 100%;margin-top:8px}
  /* 卡片里的按钮是唯一主动作，做成实心（原来 1px 浅边框在白底上几乎看不见） */
  .tbl td:nth-child(8) .tadd{
    width:100%;height:46px;font-size:14px;
    background:var(--grey-900);border-color:var(--grey-900);color:#fff;
  }
  .tbl td:nth-child(8) .tadd:active{background:#000}
  .tbl tbody tr:hover td{background:transparent}
  /* 卡片模式下不需要横滑，也不需要吸附 */
  .tblscroll{overflow-x:visible}
}
}
.tadd{
  border:1px solid var(--grey-100);border-radius:980px;padding:8px 16px;font-size:13px;
  color:var(--grey-900);transition:.2s;white-space:nowrap;
}
.tadd:hover{background:var(--grey-900);color:#fff;border-color:var(--grey-900)}
.tadd.done{background:var(--accent);border-color:var(--accent);color:#fff}

/* 表单 */
.form{display:grid;gap:16px}
.form .fr{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form label{display:block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--grey-500);margin-bottom:8px}
.form input,.form select,.form textarea{
  width:100%;padding:15px 16px;border-radius:12px;border:1px solid var(--grey-100);
  background:#fff;color:var(--grey-900);font-size:15px;outline:none;transition:.2s;
}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--grey-900);box-shadow:0 0 0 3px rgba(0,0,0,.05)}
.form textarea{min-height:120px;resize:vertical}
.form .note{font-size:12px;color:var(--grey-500);line-height:1.6}

/* ---------- 图片块 ---------- */
.shot{border-radius:22px;overflow:hidden;background:#111}
.shot img{width:100%;height:100%;object-fit:cover}
.shot--tall img{height:clamp(360px,52vw,620px)}

/* ---------- 子页头部 ---------- */
.subhero{padding:calc(var(--nav-h) + clamp(90px,11vw,150px)) 0 clamp(56px,7vw,90px);position:relative;overflow:hidden}
.subhero::before{
  content:"";position:absolute;left:-10%;top:-30%;width:70vw;height:70vw;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.12),transparent 62%);pointer-events:none;
}
.subhero__in{position:relative;z-index:2;max-width:900px}
.cols2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,6vw,90px);align-items:start}
.cols2--c{align-items:center}
.cols2--w{grid-template-columns:1.25fr .75fr}
@media(max-width:900px){.cols2,.cols2--w{grid-template-columns:1fr}}

/* ---------- 滚动渐入 ---------- */
/* 滚动渐入：**默认可见**，只有 html.js（页面 <head> 内联脚本加的）才初始隐藏。
   为什么这样写：原来 .r 直接 opacity:0，一旦 JS 没加载 / 被拦 / 爬虫不执行 JS，
   整页内容就永久空白 —— 官网首页最不该有这种失败模式。 */
.r{opacity:1;transform:none}
html.js .r{opacity:0;transform:translateY(32px);transition:opacity .95s var(--ease),transform .95s var(--ease)}
html.js .r.in{opacity:1;transform:none}
.r-d1{transition-delay:.08s}.r-d2{transition-delay:.16s}.r-d3{transition-delay:.24s}.r-d4{transition-delay:.32s}
.r-img{opacity:1;transform:none}
html.js .r-img{opacity:0;transform:scale(1.04);transition:opacity 1.1s var(--ease),transform 1.4s var(--ease)}
html.js .r-img.in{opacity:1;transform:scale(1)}

/* ---------- 兜底 ---------- */
.toast{
  position:fixed;left:50%;bottom:36px;transform:translate(-50%,16px);
  background:rgba(29,29,31,.96);color:#fff;padding:13px 24px;border-radius:980px;
  font-size:14px;opacity:0;transition:.3s var(--ease);z-index:200;pointer-events:none;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.toast.on{opacity:1;transform:translate(-50%,0)}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .grades,.pin,.maprow{grid-template-columns:1fr}
  .pin__media{position:relative;top:0}
  .pin__body{padding:0;gap:32px}
  .stats{grid-template-columns:1fr 1fr;gap:34px 24px}
  .ftr__cols{grid-template-columns:1fr 1fr}
}
@media(max-width:860px){
  .nav__links{display:none}
  .nav__cta{display:none}
  .nav__lang{margin-left:auto}
  .burger{display:flex;margin-left:12px}
  .duo{grid-template-columns:1fr}
  .feat{grid-template-columns:1fr}
  .hero{min-height:92svh}
  .hero__scrim{background:linear-gradient(180deg,rgba(0,0,0,.88) 0%,rgba(0,0,0,.62) 38%,rgba(0,0,0,.95) 100%)}
  .hero__media img{object-position:76% center}
  .row{grid-template-columns:1fr;gap:6px}
  .form .fr{grid-template-columns:1fr}
}
@media(max-width:600px){
  .stats{grid-template-columns:1fr 1fr}
  .stat b{font-size:38px}
  .ftr__cols{grid-template-columns:1fr 1fr}
  .grow{grid-template-columns:54px 1fr;gap:14px}
  .grow .pct{grid-column:2;font-size:12px}
  .loc__row{grid-template-columns:1fr;gap:4px}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html.js .r,html.js .r-img{opacity:1;transform:none}
  .line > span{transform:none}
  .hero__media img{opacity:1;transform:none}
}

/* ---------- 法律页（privacy / terms）：长文阅读 ---------- */
.legal{max-width:780px}
.legal .meta{font-size:13px;line-height:1.6;color:var(--grey-500);margin-bottom:38px}
.legal h2{font-size:clamp(20px,2.2vw,25px);font-weight:600;letter-spacing:-0.02em;color:var(--grey-900);margin:46px 0 14px}
.legal h2:first-of-type{margin-top:0}
.legal h3{font-size:16px;font-weight:600;color:var(--grey-900);margin:26px 0 8px}
.legal p{font-size:15.5px;line-height:1.72;color:var(--grey-700);margin-bottom:14px}
.legal ul{margin:0 0 16px 20px;padding:0}
.legal li{font-size:15.5px;line-height:1.72;color:var(--grey-700);margin-bottom:8px}
.legal li b{color:var(--grey-900);font-weight:600}
.legal a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.legal .box{border:1px solid var(--grey-100);border-radius:16px;padding:22px 24px;margin:26px 0;background:var(--grey-50)}
.legal .box p:last-child{margin-bottom:0}

/* ---------- 库存不可用 / 快照提示 ---------- */
.notice{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  border:1px solid rgba(255,90,31,.28);background:rgba(255,90,31,.055);
  border-radius:14px;padding:16px 20px;margin-bottom:26px;
}
.notice__body{display:flex;flex-direction:column;gap:4px;max-width:760px}
.notice__body b{font-size:15px;font-weight:600;color:var(--grey-900)}
.notice__body span{font-size:14.5px;line-height:1.55;color:var(--grey-700)}
.notice__link{font-size:14px;font-weight:600;color:var(--accent);white-space:nowrap}
.notice__link:hover{text-decoration:underline}

/* ---------- 窄屏防溢出 ----------
   1) grid/flex 子项默认 min-width:auto，长 <option>、长邮箱会把整列撑宽 → 显式归零
   2) 键值行原来用内联 140px 两列，小屏不会折行 → 改成类名，媒体查询里单列
*/
.cols2 > *, .duo > *, .feat > *, .rows > *{min-width:0}
.form, .form > *, .form .fr > *{min-width:0}
.form input, .form select, .form textarea{max-width:100%}
.row-kv{grid-template-columns:140px 1fr}
@media(max-width:860px){
  .row-kv{grid-template-columns:1fr;gap:4px}
}

/* 手机端业务卡片：卡片接近方形，图片占比更大，原 0.82 的底部渐变不够，
   文字会压在彩色图标上读不清 → 加深遮罩 + 提亮正文 */
@media(max-width:860px){
  .duo__card::after{background:linear-gradient(180deg,rgba(0,0,0,.22) 0%,rgba(0,0,0,.7) 40%,rgba(0,0,0,.94) 100%)}
  .duo__body{padding:28px 24px}
  .duo__body p{color:rgba(255,255,255,.85)}
  .duo__body .tag{color:rgba(255,255,255,.72)}
}

/* iOS Safari 在输入框 font-size < 16px 时会自动放大页面，打字时页面乱跳。
   手机上统一提到 16px，视觉差异很小但体验差别很大。 */
@media(max-width:860px){
  .form input, .form select, .form textarea{font-size:16px}
}