/* =============================================================
   天亿塑料 · 官网静态重构
   style.css — 设计 token / 全站骨架 / 首页模块
   ============================================================= */

:root{
  --ink:#1C1C1E;
  --ink-2:#2C2C34;
  --text:#555A6A;
  --muted:#8E91A0;
  --line:#EEF0F3;
  --border:#E0E2E8;
  --bg:#F7F8FA;
  --bg-2:#FAFBFC;
  --yellow:#FFD02F;
  --green:#00B473;

  --r-xl:32px;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;

  --pad:clamp(20px,6.95vw,100px);
  --sec-y:clamp(56px,6.2vw,96px);

  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-float:0 18px 40px -22px rgba(17,17,26,.35);
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  margin:0;
  background:#fff;
  color:var(--ink);
  font-family:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:15px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}

::selection{background:var(--yellow);color:var(--ink)}

.wrap{
  width:100%;
  max-width:1440px;
  margin-inline:auto;
  padding-inline:var(--pad);
}

.num{font-family:"Inter","SF Pro Display",system-ui,-apple-system,sans-serif;font-variant-numeric:tabular-nums}

/* ---------- 通用排版 ---------- */
.eyebrow{
  display:inline-block;
  font-family:"Inter",system-ui,sans-serif;
  font-size:12px;
  font-weight:600;
  letter-spacing:1.6px;
  text-transform:uppercase;
  color:var(--muted);
}
.h1{
  font-size:clamp(34px,4.1vw,58px);
  line-height:1.24;
  letter-spacing:-.6px;
  font-weight:700;
}
.h2{
  font-size:clamp(28px,2.9vw,40px);
  line-height:1.3;
  letter-spacing:-.4px;
  font-weight:700;
  margin-top:12px;
}
.h3{
  font-size:clamp(18px,1.5vw,20px);
  line-height:1.4;
  font-weight:500;
}
.lede{
  margin-top:14px;
  color:var(--text);
  font-size:15px;
  line-height:1.75;
  max-width:64ch;
}
.sec{padding-block:var(--sec-y)}
.sec--bg{background:var(--bg)}
.sec--dark{background:var(--ink);color:#fff}
.sec--dark .lede,.sec--dark .muted{color:#A5A8B5}
.sec--dark .eyebrow{color:#6B6F7E}
.sec__head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px}
.sec__head--stack{display:block}
.muted{color:var(--muted)}
.link-more{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:500;white-space:nowrap;
  transition:gap .25s var(--ease),opacity .25s;
}
.link-more svg{transition:transform .3s var(--ease)}
.link-more:hover svg{transform:translateX(4px)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:999px;
  font-size:14px;font-weight:500;line-height:1.4;
  transition:transform .28s var(--ease),background .28s var(--ease),box-shadow .28s var(--ease),border-color .28s,color .28s;
  will-change:transform;
}
.btn:active{transform:translateY(0) scale(.985)}
.btn--dark{background:var(--ink);color:#fff}
.btn--dark:hover{transform:translateY(-2px);box-shadow:0 14px 28px -14px rgba(28,28,30,.7)}
.btn--ghost{border:1px solid #C7CAD5;color:var(--ink);background:#fff}
.btn--ghost:hover{border-color:var(--ink);background:var(--bg);transform:translateY(-2px)}
.btn--light{background:#fff;color:var(--ink)}
.btn--light:hover{transform:translateY(-2px);box-shadow:0 14px 30px -16px rgba(0,0,0,.55)}
.btn--outline-light{border:1px solid #4A4D58;color:#fff}
.btn--outline-light:hover{border-color:#fff;transform:translateY(-2px)}
.btn--sm{padding:11px 20px;font-size:13px}
.btn--block{width:100%}

/* ---------- 顶栏 + 导航 ---------- */
.promo{background:var(--ink);color:#A5A8B5;font-size:12px}
.promo__in{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:40px;
}
.promo__tel{color:#fff;font-weight:500;letter-spacing:.2px}

.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.86);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s var(--ease),background .3s;
}
.nav.is-stuck{box-shadow:0 10px 30px -24px rgba(17,17,26,.5);background:rgba(255,255,255,.94)}
.nav__in{display:flex;align-items:center;justify-content:space-between;gap:40px;height:84px}

.brand{display:inline-flex;align-items:center;flex-shrink:0}
.brand__logo{display:block;height:50px;width:auto}

.nav__links{display:flex;align-items:center;gap:30px}
.nav__links a{
  position:relative;font-size:14px;color:var(--text);
  padding-block:4px;transition:color .25s;
}
.nav__links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:-2px;height:1.5px;
  background:var(--ink);transition:right .32s var(--ease);
}
.nav__links a:hover{color:var(--ink)}
.nav__links a:hover::after{right:0}
.nav__links a.is-active{color:var(--ink);font-weight:500}
.nav__links a.is-active::after{right:0}

.nav__right{display:flex;align-items:center;gap:24px;flex-shrink:0}
.nav__tel{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700}
.nav__tel svg{stroke:var(--ink)}

.nav__burger{display:none;width:40px;height:40px;place-items:center;border-radius:10px}
.nav__burger span{display:block;width:18px;height:1.6px;background:var(--ink);border-radius:2px;transition:transform .3s var(--ease),opacity .2s}
.nav__burger span+span{margin-top:5px}
.nav.is-open .nav__burger span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.nav.is-open .nav__burger span:nth-child(2){opacity:0}
.nav.is-open .nav__burger span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}

/* ---------- 图片占位（待替换实拍） ---------- */
.media{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:
    radial-gradient(120% 110% at 18% 8%,#EDEFF4 0%,#F7F8FA 42%,#E7EAF0 100%);
  display:flex;align-items:flex-end;padding:20px;
  isolation:isolate;
}
.media::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:
    linear-gradient(rgba(28,28,30,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(28,28,30,.045) 1px,transparent 1px);
  background-size:38px 38px;
  mask-image:radial-gradient(80% 80% at 60% 30%,#000 20%,transparent 90%);
}
.media__img{
  position:absolute;inset:0;z-index:-1;
  width:100%;height:100%;object-fit:cover;
  transition:transform .85s var(--ease);
}
.media:hover .media__img{transform:scale(1.04)}
.media::after{
  content:"";position:absolute;inset:auto 0 0;height:44%;z-index:-1;
  background:linear-gradient(to top,rgba(12,12,16,.6),rgba(12,12,16,0));
  pointer-events:none;
}
/* 占位图位：浅底 + 待补标记，避免看起来像坏图 */
.media--ph{background:#EDEFF3;display:block;padding:0}
.media--ph .media__img{object-fit:cover;opacity:.92;filter:grayscale(.15)}
.media--ph::before,.media--ph::after{display:none}
.media--ph .media__tag{position:absolute;left:14px;bottom:14px}
.ph-chip{
  position:absolute;right:14px;bottom:14px;z-index:2;
  padding:4px 10px;border-radius:999px;
  background:rgba(255,255,255,.7);
  border:1px dashed #C7CBD4;
  font-size:10px;color:#8E91A0;letter-spacing:.3px;
}
.media__tag{
  position:relative;z-index:2;
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 12px;border-radius:999px;
  background:rgba(255,255,255,.86);backdrop-filter:blur(6px);
  font-size:11px;color:var(--text);letter-spacing:.3px;
  border:1px solid rgba(28,28,30,.06);
}
.media__tag i{width:5px;height:5px;border-radius:50%;background:var(--yellow);flex-shrink:0}

/* =============================================================
   首屏 · 4 屏轮播
   ============================================================= */
.hero{
  position:relative;overflow:hidden;background:#0E0E12;isolation:isolate;
  height:clamp(556px,68vh,720px);
}
.hero__slides{position:absolute;inset:0;transition:transform 1s var(--ease);will-change:transform}

.hslide{
  position:absolute;inset:0;
  opacity:0;visibility:hidden;
  transition:opacity .72s var(--ease),visibility .72s;
}
.hslide.is-on{opacity:1;visibility:visible;z-index:2}

.hslide__bg{
  position:absolute;inset:0;
  width:100%;height:100%;object-fit:cover;object-position:center right;
  transform:scale(1.07);
}
.hslide.is-on .hslide__bg{animation:heroZoom 3.4s cubic-bezier(.22,.61,.36,1) forwards}
@keyframes heroZoom{from{transform:scale(1.07)}to{transform:scale(1)}}

.hslide__scrim{
  position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(10,10,14,.95) 0%,rgba(10,10,14,.8) 30%,rgba(10,10,14,.34) 58%,rgba(10,10,14,.06) 100%),
    linear-gradient(to top,rgba(10,10,14,.78) 0%,rgba(10,10,14,0) 44%);
}

.hslide__in{
  position:relative;z-index:2;height:100%;
  display:flex;flex-direction:column;justify-content:center;align-items:flex-start;
  padding-bottom:72px;color:#fff;
}

.hslide__badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px 7px 12px;border-radius:999px;
  background:var(--acc);color:#fff;
  font-size:12px;font-weight:500;letter-spacing:.4px;
  box-shadow:0 12px 26px -16px rgba(0,0,0,.9);
}
.hslide__badge::before{content:"";width:5px;height:5px;border-radius:50%;background:#fff;opacity:.85}

.hslide__t{
  margin-top:22px;
  font-size:clamp(29px,3.9vw,54px);
  font-weight:700;line-height:1.24;letter-spacing:-1.2px;
  color:#fff;text-shadow:0 2px 34px rgba(0,0,0,.34);
}
.hslide__d{max-width:44ch;margin-top:18px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.74)}
.hslide__btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}

.hbtn{
  background:var(--acc);color:#fff;padding:15px 28px;font-weight:500;
  box-shadow:0 20px 44px -24px rgba(0,0,0,.95);
}
.hbtn:hover{transform:translateY(-2px);filter:brightness(1.09)}
.hbtn--ghost{
  background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.28);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);padding:15px 28px;
}
.hbtn--ghost:hover{background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.5);transform:translateY(-2px)}

/* 文案逐层进场 */
.hslide.is-on .hslide__badge,
.hslide.is-on .hslide__t,
.hslide.is-on .hslide__d,
.hslide.is-on .hslide__btns{
  animation:heroUp .74s var(--ease) both;
  animation-delay:calc(var(--d,0) * 90ms + 120ms);
}
@keyframes heroUp{
  from{opacity:0;transform:translateY(26px);filter:blur(7px)}
  to{opacity:1;transform:none;filter:none}
}

/* 换屏光扫 */
.hero__flash{
  position:absolute;inset:0;z-index:5;pointer-events:none;opacity:0;
  background:linear-gradient(100deg,transparent 33%,rgba(255,255,255,.17) 46%,rgba(255,255,255,.04) 54%,transparent 67%);
  transform:translateX(-60%);
}
.hero__flash.is-sweep{animation:sweep .9s var(--ease)}
@keyframes sweep{0%{opacity:0;transform:translateX(-60%)}28%{opacity:1}100%{opacity:0;transform:translateX(60%)}}

/* 底部控制条 */
.hero__bar{
  position:absolute;left:0;right:0;bottom:0;z-index:6;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding-bottom:clamp(22px,2.6vw,34px);
}
.hdots{display:flex;align-items:center;gap:9px}
.hdot{
  position:relative;width:26px;height:4px;border-radius:99px;overflow:hidden;
  background:rgba(255,255,255,.28);
  transition:width .5s var(--ease),background .3s;
}
.hdot:hover{background:rgba(255,255,255,.52)}
.hdot.is-on{width:56px;background:rgba(255,255,255,.24)}
.hdot i{position:absolute;inset:0;border-radius:99px;background:#fff;transform:scaleX(0);transform-origin:left}
.hdot.is-on i{animation:dotFill 3s linear forwards}
@keyframes dotFill{from{transform:scaleX(0)}to{transform:scaleX(1)}}

.hctrl{display:flex;align-items:center;gap:14px}
.hcount{
  font-family:"Inter","SF Pro Display",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;font-size:12px;letter-spacing:1.2px;
  color:rgba(255,255,255,.46);
}
.hcount b{color:#fff;font-weight:600}
.hcount i{font-style:normal;margin:0 4px;color:rgba(255,255,255,.3)}
.harrow{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.24);color:#fff;background:rgba(255,255,255,.07);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  transition:background .28s,color .28s,border-color .28s,transform .28s var(--ease);
}
.harrow:hover{background:#fff;color:var(--ink);border-color:#fff;transform:scale(1.07)}
.harrow:active{transform:scale(.95)}
.harrow svg{width:17px;height:17px}

/* ---------- 数据条 ---------- */
.trust{background:#fff;border-bottom:1px solid var(--line)}
.trust__in{display:flex;align-items:center;gap:clamp(18px,3.2vw,56px);padding-block:20px;flex-wrap:wrap}
.trust__i{display:flex;align-items:baseline;gap:8px}
.trust__i b{
  font-family:"Inter","SF Pro Display",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:700;letter-spacing:-.7px;color:var(--ink);line-height:1;
}
.trust__i span{font-size:12px;color:var(--muted)}
.trust__note{
  margin-left:auto;font-size:11.5px;color:var(--text);
  padding:5px 13px;border-radius:999px;background:var(--bg);
  display:inline-flex;align-items:center;gap:7px;
}
.trust__note::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--green);
  box-shadow:0 0 0 3px rgba(0,180,115,.14);
}

/* ---------- 品牌 ---------- */
.marquee{
  overflow:hidden;margin-top:36px;
  mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
}
.marquee__track{display:flex;align-items:center;gap:52px;width:max-content;animation:marquee 52s linear infinite}
.marquee:hover .marquee__track{animation-play-state:paused}
.marquee__item{display:inline-flex;align-items:center;gap:11px;white-space:nowrap}
.marquee__txt{font-size:14px;font-weight:500;color:#9DA1AE;letter-spacing:.4px;transition:color .3s}
.marquee__item:hover .marquee__txt{color:var(--ink)}
/* 跑马灯 logo：统一 28px 视觉高，灰度弱化，悬停复原 */
.marquee__logo{
  display:inline-flex;align-items:center;justify-content:center;
  height:28px;flex-shrink:0;
}
.marquee__logo img{
  width:auto;height:auto;max-height:26px;max-width:78px;
  object-fit:contain;
  filter:grayscale(.85);opacity:.78;
  transition:filter .32s,opacity .32s;
}
.marquee__item:hover .marquee__logo img{filter:grayscale(0);opacity:1}
.marquee__logo--mono{
  width:28px;height:28px;border-radius:8px;background:#E9EBF0;
  color:#868A97;font-family:"Inter",system-ui,sans-serif;
  font-size:11.5px;font-weight:700;letter-spacing:-.2px;
}
@keyframes marquee{to{transform:translateX(-50%)}}

.brand-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;margin-top:36px;
}
.brand-card{
  padding:24px;border-radius:var(--r-lg);background:var(--bg-2);
  border:1px solid transparent;
  transition:transform .32s var(--ease),background .32s,border-color .32s,box-shadow .32s;
}
.brand-card:hover{transform:translateY(-4px);background:#fff;border-color:var(--border);box-shadow:var(--shadow-float)}
.brand-card__cn{font-size:18px;font-weight:500}
/* logo 统一视觉尺寸：宽度上限 80px，高度按原始比例自适应，不变形 */
.brand-card__top{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:34px}
.brand-card__logo{
  width:auto;height:auto;max-width:80px;max-height:34px;
  object-fit:contain;flex-shrink:0;opacity:.94;
}
.brand-card__mono{
  width:34px;height:34px;border-radius:9px;background:#EDEFF3;
  display:grid;place-items:center;flex-shrink:0;
  font-family:"Inter",system-ui,sans-serif;
  font-size:12px;font-weight:700;letter-spacing:-.3px;color:#9CA0AC;
}
.brand-card__en{font-family:"Inter",system-ui,sans-serif;font-size:11px;color:var(--muted);letter-spacing:.6px;margin-top:3px}
.brand-card__line{font-size:13px;color:var(--text);margin-top:10px;line-height:1.7}

/* ---------- 材料矩阵 ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.chip{
  padding:9px 18px;border-radius:999px;background:#fff;border:1px solid var(--border);
  font-size:13px;color:var(--text);
  transition:background .3s var(--ease),color .3s,border-color .3s,transform .25s var(--ease);
}
.chip:hover{border-color:var(--ink);transform:translateY(-1px)}
.chip.is-active{background:var(--ink);border-color:var(--ink);color:#fff}

.matrix{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;margin-top:32px;
}
.mcard{
  border-radius:26px;overflow:hidden;
  display:flex;flex-direction:column;
  background:var(--fam,#FAFBFC);
  color:inherit;text-decoration:none;
  transition:transform .38s var(--ease),box-shadow .38s var(--ease),opacity .4s,filter .4s;
}
.mcard[data-family="eng"]{--fam:#FFF6D6}
.mcard[data-family="hpp"]{--fam:#E6F4F2}
.mcard[data-family="comm"]{--fam:#EDEBFA}
.mcard[data-family="ela"]{--fam:#FDECEA}
.mcard:hover{transform:translateY(-5px);box-shadow:0 30px 52px -34px rgba(17,17,26,.5)}
.mcard:focus-visible{outline:3px solid #FFD02F;outline-offset:3px}
.mcard.is-hidden{display:none}

.mcard__ph{position:relative;aspect-ratio:16/10;overflow:hidden;background:#EDEFF3}
.mcard__ph img{width:100%;height:100%;object-fit:cover;transition:transform .85s var(--ease)}
.mcard:hover .mcard__ph img{transform:scale(1.07)}
.mcard__ph::after{
  content:"";position:absolute;inset:auto 0 0;height:52%;
  background:linear-gradient(to top,var(--fam,#FAFBFC) 0%,rgba(255,255,255,0) 100%);
  pointer-events:none;
}
.mcard__body{
  padding:0 22px 24px;display:flex;flex-direction:column;gap:10px;
  flex:1;background:var(--fam,#FAFBFC);
}
.mcard__code{font-family:"Inter",system-ui,sans-serif;font-size:26px;font-weight:700;letter-spacing:-.8px;line-height:1.2}
.mcard__desc{font-size:13px;color:var(--text);line-height:1.7}
.mcard__lines{font-size:13px;color:var(--ink-2);line-height:1.75;margin-top:auto}
.mcard__lines span{color:#8B8F9C;font-size:11px;display:block;margin-bottom:2px;letter-spacing:.4px}
.mcard__go{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:14px;padding:8px 0 0;border-top:1px solid rgba(17,17,26,.08);
  font-size:12px;font-weight:600;letter-spacing:.2px;color:var(--ink);
}
.mcard__go svg{width:14px;height:14px;transition:transform .34s var(--ease)}
.mcard:hover .mcard__go svg{transform:translateX(4px)}
.matrix__note{
  display:flex;align-items:flex-start;gap:7px;
  margin-top:22px;font-size:12.5px;color:var(--muted);
}
.matrix__note span{line-height:1.72}
.matrix__note b{font-weight:700;color:var(--ink)}
.matrix__note svg{flex-shrink:0;opacity:.7;margin-top:2px}
.chip b{font-weight:600;font-size:11.5px;opacity:.6;margin-left:2px}
.chip.is-active b{opacity:.75}

/* ---------- 应用 ---------- */
.app-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:40px}
.app-card{
  position:relative;overflow:hidden;isolation:isolate;
  border-radius:var(--r-lg);background:var(--ink-2);
  display:flex;flex-direction:column;justify-content:flex-end;
  min-height:302px;
  transition:transform .34s var(--ease),box-shadow .34s var(--ease);
}
.app-card__ph{
  position:absolute;inset:0;z-index:-2;
  width:100%;height:100%;object-fit:cover;
  transition:transform .85s var(--ease);
}
.app-card::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(to top,rgba(14,14,18,.95) 2%,rgba(14,14,18,.74) 40%,rgba(14,14,18,.26) 100%);
  transition:opacity .34s;
}
.app-card:hover{transform:translateY(-4px);box-shadow:0 30px 50px -34px rgba(0,0,0,.9)}
.app-card:hover .app-card__ph{transform:scale(1.07)}
.app-card:hover::after{opacity:.88}
.app-card__body{padding:26px}
.app-card__ico{width:28px;height:28px;color:var(--yellow)}
.app-card__t{font-size:18px;font-weight:500;margin-top:14px;color:#fff}
.app-card__d{font-size:13px;color:#B9BCC7;line-height:1.8;margin-top:9px}
.app-card__d b{color:#fff;font-weight:500}

/* ---------- 仓储 ---------- */
.wh{display:grid;grid-template-columns:minmax(0,1fr) 500px;gap:clamp(32px,4.6vw,72px);align-items:center}
.wh__stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:30px}
.wstat{padding:20px 22px;border-radius:20px;background:var(--bg);transition:transform .3s var(--ease),background .3s}
.wstat:hover{transform:translateY(-3px);background:#F1F3F6}
.wstat__v{font-size:clamp(22px,2vw,26px);font-weight:700;letter-spacing:-.4px;line-height:1.25}
.wstat__k{font-size:12px;color:var(--muted);margin-top:2px}
.wh .btn{margin-top:26px}
.wh__media{aspect-ratio:520/440;border-radius:var(--r-xl)}

/* ---------- 物流 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:36px}
.step{
  padding:26px;border-radius:var(--r-lg);background:#fff;
  border:1px solid var(--line);
  transition:transform .32s var(--ease),box-shadow .32s var(--ease),border-color .32s;
}
.step:hover{transform:translateY(-4px);border-color:var(--border);box-shadow:var(--shadow-float)}
.step__no{font-family:"Inter",system-ui,sans-serif;font-size:11px;font-weight:700;letter-spacing:1.5px;color:var(--muted)}
.step__t{font-size:20px;font-weight:500;margin-top:10px}
.step__d{font-size:13px;color:var(--text);line-height:1.8;margin-top:8px}
.promises{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:20px}
.promise{padding:18px 20px;border-radius:var(--r-md);background:#fff;transition:transform .3s var(--ease)}
.promise:hover{transform:translateY(-3px)}
.promise__t{font-size:14px;font-weight:500}
.promise__d{font-size:12px;color:var(--muted);margin-top:3px}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:36px}
.news-card{display:flex;flex-direction:column;gap:14px;cursor:pointer;height:100%}
.news-card__thumb{
  position:relative;overflow:hidden;
  aspect-ratio:397/220;border-radius:20px;
  background:radial-gradient(120% 110% at 20% 10%,#EFF1F5,#F7F8FA 45%,#E6E9EF);
  display:flex;align-items:flex-end;padding:14px;
  transition:transform .4s var(--ease);
}
.news-card__thumb img{
  position:absolute;inset:0;z-index:0;
  width:100%;height:100%;object-fit:cover;
  transition:transform .8s var(--ease);
}
.news-card__thumb::after{
  content:"";position:absolute;inset:auto 0 0;height:48%;z-index:1;
  background:linear-gradient(to top,rgba(12,12,16,.52),rgba(12,12,16,0));
}
.news-card:hover .news-card__thumb img{transform:scale(1.06)}
.news-card__thumb .media__tag{z-index:2}
.news-card:hover .news-card__thumb{transform:translateY(-3px)}
.news-card__cat{font-size:12px;font-weight:500;color:var(--muted)}
.news-card__t{font-size:17px;font-weight:500;line-height:1.55;transition:color .25s}
.news-card:hover .news-card__t{color:#000}
.news-card__date{font-family:"Inter",system-ui,sans-serif;font-size:12px;color:var(--muted);margin-top:auto}

/* ---------- CTA 带 ---------- */
.cta-wrap{padding-block:0 var(--sec-y)}
.cta{
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
  padding:clamp(32px,3.6vw,52px) clamp(28px,3.6vw,56px);
  border-radius:var(--r-xl);background:var(--ink);color:#fff;
  position:relative;overflow:hidden;isolation:isolate;
}
.cta::before{
  content:"";position:absolute;inset:auto -6% -60% auto;width:52%;height:170%;z-index:-1;
  background:radial-gradient(50% 50% at 50% 50%,rgba(255,208,47,.2),transparent 70%);
}
.cta__t{font-size:clamp(22px,2.2vw,28px);font-weight:700;letter-spacing:-.3px;line-height:1.35}
.cta__d{color:#A5A8B5;font-size:14px;margin-top:10px}
.cta__actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink);color:#A5A8B5;padding-block:72px 36px}
.footer__top{
  display:grid;grid-template-columns:minmax(0,1.4fr) repeat(2,minmax(0,.55fr)) minmax(0,1fr);
  gap:clamp(28px,4vw,60px);align-items:start;
}
.footer .brand--dark .brand__logo{height:54px;background:#fff;padding:11px 17px;border-radius:14px}
.footer__desc{font-size:13px;line-height:1.85;color:#A5A8B5;margin-top:20px;max-width:40ch}
.footer__h{font-size:13px;font-weight:500;color:#fff;margin-bottom:15px}
.footer__list{display:grid;gap:11px;font-size:13px}
.footer__list a{transition:color .2s}
.footer__list a:hover{color:#fff}
.footer__office+.footer__office{margin-top:20px}
.footer__office b{display:block;font-size:13px;font-weight:500;color:#fff;margin-bottom:6px}
.footer__office span{display:block;font-size:12px;color:#6B6F7E;line-height:1.8}
.footer__bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid #2C2C34;
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:12px;color:#6B6F7E;
}

/* ---------- 滚动进场 ---------- */
[data-reveal]{
  opacity:0;transform:translateY(26px);filter:blur(6px);
  transition:opacity .8s var(--ease),transform .8s var(--ease),filter .8s var(--ease);
  transition-delay:calc(var(--d,0) * 70ms);
}
[data-reveal].is-in{opacity:1;transform:none;filter:none}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .matrix{grid-template-columns:repeat(3,minmax(0,1fr))}
  .wh{grid-template-columns:minmax(0,1fr) 420px}
  .footer__top{grid-template-columns:minmax(0,1.2fr) repeat(2,minmax(0,.6fr)) minmax(0,1fr)}
}

@media (max-width:1024px){
  .nav__links{gap:22px}
  .nav__tel{display:none}
  .hero{height:clamp(520px,64vh,620px)}
  .matrix{grid-template-columns:repeat(2,minmax(0,1fr))}
  .brand-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .app-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .promises{grid-template-columns:repeat(2,minmax(0,1fr))}
  .wh{grid-template-columns:1fr}
  .wh__media{aspect-ratio:16/10;max-width:560px}
  .footer__top{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}
}

@media (max-width:860px){
  .nav__burger{display:grid}
  .nav__links{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:flex-start;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:8px var(--pad) 20px;
    display:none;
  }
  .nav.is-open .nav__links{display:flex;animation:dropIn .3s var(--ease)}
  .nav__links a{width:100%;padding:13px 0;border-bottom:1px solid var(--line);font-size:15px}
  .nav__links a::after{display:none}
  .nav__right .btn{display:none}
  @keyframes dropIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}

  .steps{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr;gap:32px}
  .news-card__thumb{aspect-ratio:16/9}
  .sec__head{flex-direction:column;align-items:flex-start;gap:18px}
  .promo__in{font-size:11px}
  .promo__in span:first-child{max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
}

@media (max-width:640px){
  body{font-size:14px}
  .hero{height:clamp(500px,88vh,600px)}
  .hslide__in{padding-bottom:76px}
  .hslide__scrim{
    background:
      linear-gradient(170deg,rgba(10,10,14,.9) 0%,rgba(10,10,14,.72) 46%,rgba(10,10,14,.42) 100%),
      linear-gradient(to top,rgba(10,10,14,.85) 0%,rgba(10,10,14,0) 46%);
  }
  .hslide__t{font-size:clamp(25px,7.2vw,32px);letter-spacing:-.6px;margin-top:16px}
  .hslide__d{font-size:13px;line-height:1.75;margin-top:13px}
  .hslide__btns{gap:9px;margin-top:22px;width:100%}
  .hbtn,.hbtn--ghost{padding:13px 18px;font-size:13px;flex:1 1 auto}
  .hero__bar{padding-bottom:18px;gap:12px}
  .hdot{width:20px}
  .hdot.is-on{width:40px}
  .hcount{display:none}
  .harrow{width:34px;height:34px}
  .harrow svg{width:15px;height:15px}
  .trust__in{gap:12px 18px;padding-block:16px}
  .trust__i b{font-size:18px}
  .trust__i span{font-size:11px}
  .trust__note{margin-left:0;width:100%;justify-content:center}
  .matrix{grid-template-columns:1fr}
  .mcard__ph{aspect-ratio:16/7}
  .brand-grid{grid-template-columns:1fr}
  .app-grid{grid-template-columns:1fr}
  .app-card{min-height:230px}
  .promises{grid-template-columns:1fr}
  .footer__top{grid-template-columns:1fr}
  .nav__in{gap:16px;height:auto;min-height:64px;padding-block:10px}
  .brand__logo{height:36px}
  .footer .brand--dark .brand__logo{height:44px;padding:9px 14px}
  .promo__tel{display:none}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  [data-reveal]{opacity:1;transform:none;filter:none}
}

/* ---------- 内页公用：页头 / 面包屑 / 分页 ---------- */
.page-head{
  padding-block:clamp(34px,4vw,58px) clamp(24px,2.6vw,40px);
  background:#fff;position:relative;isolation:isolate;overflow:hidden;
}
.page-head__bg{
  position:absolute;top:0;right:0;z-index:-1;
  width:min(52%,780px);height:100%;
  object-fit:cover;object-position:right center;
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 52%);
  mask-image:linear-gradient(90deg,transparent 0%,#000 52%);
  opacity:.9;
}
.page-head > .wrap{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.breadcrumb::-webkit-scrollbar{display:none}
.breadcrumb a,.breadcrumb b,.breadcrumb em{white-space:nowrap;flex-shrink:0}
.crumb-mid{display:contents}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb em{font-style:normal;color:#C7CAD5}
.breadcrumb b{font-weight:500;color:var(--ink)}
.page-head .h1{margin-top:18px}
.page-head .lede{margin-top:12px;max-width:60ch}

.pager{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.pager__info{font-size:11px;color:var(--muted)}
.pager__btns{display:flex;align-items:center;gap:6px}
.page-btn{
  min-width:30px;padding:6px 11px;border-radius:999px;background:var(--bg);
  font-family:"Inter",system-ui,sans-serif;font-size:11px;color:var(--text);
  transition:background .25s,color .25s,transform .25s var(--ease);
}
.page-btn:hover{background:#ECEEF2;transform:translateY(-1px)}
.page-btn.is-active{background:var(--ink);color:#fff}
.page-btn:disabled{opacity:.4;cursor:not-allowed;transform:none}
.page-gap{font-size:12px;color:var(--muted);padding:0 2px;line-height:1}

/* =============================================================
   电话排版统一：加大加粗
   ============================================================= */
.tel{
  font-family:"Inter","SF Pro Display",system-ui,-apple-system,sans-serif;
  font-variant-numeric:tabular-nums;
  font-weight:700;
  font-size:1.14em;
  letter-spacing:-.2px;
  white-space:nowrap;
}
.promo__tel{font-size:12.5px;color:#fff;font-weight:400}
.promo__tel .tel{color:#fff;font-size:1.16em}
.promo__tel a:hover{color:var(--yellow)}
.nav__tel{font-size:17px;font-weight:800;letter-spacing:-.2px;font-variant-numeric:tabular-nums}
.footer__who{display:block;font-size:12px;color:#8A8E9C;line-height:1.6}
.footer__office .footer__tel{
  display:block;margin-top:2px;
  font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;
  font-size:16px;font-weight:700;letter-spacing:-.2px;color:#fff;
  transition:color .2s;
}
.footer__office .footer__tel:hover{color:var(--yellow)}
.cta__d .tel{color:#fff;font-size:1.1em}

/* =============================================================
   悬挂联系方式（左侧常驻）
   ============================================================= */
.hang{
  position:fixed;left:14px;top:50%;transform:translateY(-50%);
  z-index:70;background:#fff;border:1px solid var(--border);
  border-radius:18px;overflow:hidden;
  box-shadow:0 26px 56px -30px rgba(17,17,26,.42);
  transition:box-shadow .35s var(--ease);
}
.hang:hover{box-shadow:0 32px 64px -30px rgba(17,17,26,.5)}

/* --- 收起：竖排挂件 --- */
.hang__rail{
  width:56px;padding:12px 0 14px;
  display:flex;flex-direction:column;align-items:center;gap:10px;
  background:#fff;transition:background .25s;
}
.hang__rail:hover{background:var(--bg-2)}
.hang__qrmini{
  width:40px;height:40px;border-radius:9px;overflow:hidden;
  border:1px solid var(--line);background:#fff;flex-shrink:0;
}
.hang__qrmini svg,.hang__qrmini img{width:100%;height:100%;display:block;object-fit:contain}
.hang__vt{
  writing-mode:vertical-rl;text-orientation:upright;
  font-size:12px;font-weight:500;letter-spacing:3px;color:var(--ink);
  padding-block:2px;
}
.hang__railico{
  width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;background:var(--yellow);color:var(--ink);
  flex-shrink:0;
  transition:transform .3s var(--ease);
}
.hang__rail:hover .hang__railico{transform:scale(1.08)}
.hang__railico svg{width:13px;height:13px}

/* --- 展开：信息卡 --- */
.hang__card{display:none;width:248px;padding:16px 17px 14px}
.hang.is-open .hang__rail{display:none}
.hang.is-open .hang__card{display:block;animation:hangIn .34s var(--ease)}
@keyframes hangIn{from{opacity:0;transform:translateX(-8px)}to{opacity:1;transform:none}}

.hang__head{display:flex;align-items:center;gap:6px}
.hang__dot{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 0 3px rgba(0,180,115,.14);flex-shrink:0}
.hang__head-t{font-size:11px;color:var(--muted);letter-spacing:.2px}
.hang__x{margin-left:auto;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;color:var(--muted);transition:background .2s,color .2s}
.hang__x:hover{background:var(--bg);color:var(--ink)}
.hang__x svg{width:12px;height:12px}

.hang__who{margin-top:11px}
.hang__who b{font-size:15px;font-weight:700}
.hang__who span{font-size:10.5px;color:var(--muted);margin-left:5px}
.hang__telrow{display:flex;align-items:center;gap:7px;margin-top:2px}
.hang__tel{
  display:block;
  font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;
  font-size:21px;font-weight:800;letter-spacing:-.6px;color:var(--ink);
  transition:color .2s;
}
.hang__tel:hover{color:#000;text-decoration:underline;text-underline-offset:3px}

/* 复制按钮 */
.cpbtn{
  width:26px;height:26px;border-radius:8px;flex-shrink:0;
  display:grid;place-items:center;
  background:var(--bg);color:var(--muted);
  transition:background .22s,color .22s,transform .22s var(--ease);
}
.cpbtn:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.cpbtn:active{transform:scale(.94)}
.cpbtn svg{width:13px;height:13px}
.cpbtn--lg{width:30px;height:30px;border-radius:9px}
.cpbtn--lg svg{width:15px;height:15px}
.qm-p .cpbtn{background:#fff;border:1px solid var(--border);color:var(--text)}
.qm-p .cpbtn:hover{background:var(--ink);border-color:var(--ink);color:#fff}

/* 页脚 / 办事处电话旁的复制胶囊 */
.cpchip{
  display:inline-flex;align-items:center;gap:4px;
  margin-top:5px;padding:3px 9px;border-radius:999px;
  background:var(--bg);color:var(--muted);
  font-size:10.5px;line-height:1.6;
  transition:background .22s,color .22s,transform .22s var(--ease);
}
.cpchip svg{width:10px;height:10px}
.cpchip:hover{background:var(--ink);color:#fff;transform:translateY(-1px)}
.footer .cpchip{background:rgba(255,255,255,.08);color:#9AA0AE}
.footer .cpchip:hover{background:#fff;color:var(--ink)}

.hang__mini{display:flex;align-items:center;gap:7px;margin-top:6px;min-width:0}
.hang__mini-k{font-size:10px;color:#A5A8B5;flex-shrink:0;width:22px}
.hang__mini-v{
  display:flex;align-items:center;gap:5px;min-width:0;
  font-size:11.5px;color:var(--text);text-align:left;
  transition:color .2s;
}
.hang__mini-v:hover{color:var(--ink)}
.hang__same{
  font-size:9px;padding:1px 4px;border-radius:4px;
  background:var(--bg);color:var(--muted);flex-shrink:0;
}

.hang__qrrow{
  margin-top:13px;padding-top:13px;border-top:1px solid var(--line);
  display:grid;justify-items:center;gap:8px;text-align:center;
}
.hang__qrbox{
  width:132px;height:132px;padding:7px;border-radius:14px;
  background:#fff;border:1px solid var(--line);
  box-shadow:0 10px 24px -18px rgba(17,17,26,.6);
  display:grid;place-items:center;
  transition:transform .3s var(--ease),box-shadow .3s;
}
.hang__qrrow:hover .hang__qrbox{transform:translateY(-2px);box-shadow:0 16px 30px -18px rgba(17,17,26,.7)}
.hang__qrbox .qr{width:100%;height:100%;border-radius:8px;display:block;object-fit:contain}
.hang__qrtxt b{display:block;font-size:12px;font-weight:600;color:var(--ink)}
.hang__qrtxt span{display:block;font-size:10.5px;color:var(--muted);line-height:1.6;margin-top:2px}

.hang__foot{
  margin-top:11px;padding-top:10px;border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:7px;
}
.hang__foot>span{font-size:10px;color:#A5A8B5}
.hang__more{
  display:flex;align-items:center;justify-content:space-between;gap:6px;
  padding:8px 10px;border-radius:9px;background:var(--ink);color:#fff;
  font-size:11px;font-weight:500;
  transition:background .25s,transform .25s var(--ease);
}
.hang__more:hover{background:#000;transform:translateY(-1px)}
.hang__more svg{width:12px;height:12px}
.hang__chev{display:grid;place-items:center}

/* =============================================================
   报价弹窗
   ============================================================= */
.qm{position:fixed;inset:0;z-index:300;display:grid;place-items:center;padding:24px}
.qm[hidden]{display:none}
.qm__scrim{
  position:absolute;inset:0;background:rgba(20,20,24,.5);
  backdrop-filter:blur(7px);-webkit-backdrop-filter:blur(7px);
  opacity:0;transition:opacity .3s var(--ease);
}
.qm.is-on .qm__scrim{opacity:1}

.qm__card{
  position:relative;width:min(700px,100%);max-height:calc(100vh - 48px);overflow:auto;
  padding:clamp(24px,3vw,34px);
  background:#fff;border-radius:28px;
  box-shadow:0 50px 100px -40px rgba(0,0,0,.55);
  opacity:0;transform:translateY(16px) scale(.97);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
  -webkit-overflow-scrolling:touch;
}
.qm.is-on .qm__card{opacity:1;transform:none}

.qm__x{
  position:absolute;right:16px;top:16px;z-index:2;
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  background:var(--bg);color:var(--text);
  transition:background .22s,color .22s,transform .22s var(--ease);
}
.qm__x:hover{background:var(--ink);color:#fff;transform:rotate(90deg)}
.qm__x svg{width:15px;height:15px}

.qm__eyebrow{
  font-family:"Inter",system-ui,sans-serif;font-size:10.5px;font-weight:600;
  letter-spacing:1.8px;color:var(--muted);
}
.qm__t{font-size:clamp(21px,2.4vw,26px);font-weight:700;letter-spacing:-.4px;margin-top:8px}
.qm__d{font-size:13px;color:var(--text);line-height:1.75;margin-top:8px;max-width:46ch}
.qm__model{
  display:inline-flex;align-items:center;gap:7px;
  margin-top:10px;padding:5px 13px;border-radius:999px;
  background:#FFF8E0;color:#746019;font-size:12px;font-weight:500;
}
.qm__model::before{content:"";width:5px;height:5px;border-radius:50%;background:#C9A227;flex-shrink:0}
.qm__model[hidden]{display:none}

.qm__grid{
  display:grid;grid-template-columns:minmax(0,1fr) 158px;gap:16px;
  margin-top:22px;align-items:start;
}
.qm__list{display:grid;gap:12px}
.qm-p{padding:15px 17px;border-radius:16px;background:var(--bg)}
.qm-p__top{display:flex;align-items:baseline;gap:7px}
.qm-p__top b{font-size:14px;font-weight:700}
.qm-p__top span{font-size:10.5px;color:var(--muted)}
.qm-p__telrow{display:flex;align-items:center;gap:9px;margin-top:3px}
.qm-p__tel{
  display:block;flex:1;min-width:0;
  font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;
  font-size:24px;font-weight:800;letter-spacing:-.8px;color:var(--ink);
  transition:color .2s;
}
.qm-p__tel:hover{color:#000;text-decoration:underline;text-underline-offset:4px}
.qm-p__row{
  display:flex;align-items:center;gap:8px;width:100%;
  margin-top:7px;padding:6px 8px;border-radius:8px;background:rgba(255,255,255,.7);
  text-align:left;transition:background .2s;
}
.qm-p__row:hover{background:#fff}
.qm-p__k{font-size:10px;color:#A5A8B5;width:22px;flex-shrink:0}
.qm-p__v{
  flex:1;min-width:0;font-size:12px;color:var(--ink-2);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.qm-p__v i{font-style:normal;font-size:9px;color:var(--muted);margin-left:5px;background:var(--bg);padding:1px 4px;border-radius:4px}
.qm-p__c{width:14px;height:14px;color:#A5A8B5;flex-shrink:0;opacity:0;transition:opacity .2s}
.qm-p__row:hover .qm-p__c{opacity:1}
.qm-p__c svg{width:14px;height:14px}

.qm__qr{
  padding:14px 12px;border-radius:16px;background:var(--bg);
  display:grid;justify-items:center;gap:4px;text-align:center;
}
.qm__qr .qr{width:104px;height:104px;border-radius:10px;background:#fff;display:block;object-fit:contain}
.qm__qr b{font-size:12px;font-weight:500;margin-top:6px}
.qm__qr span{font-size:10px;color:var(--muted);line-height:1.6}
.qm__qr em{
  font-style:normal;font-size:9px;color:#B9BCC7;margin-top:4px;
  padding:2px 6px;border-radius:5px;border:1px dashed #D8DBE2;
}

.qm__foot{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  margin-top:20px;padding-top:15px;border-top:1px solid var(--line);
  font-size:11px;color:#A5A8B5;
}
.qm__foot span+span::before{content:"·";margin-right:8px;color:#D2D5DD}

/* =============================================================
   响应式：悬挂卡 / 弹窗
   ============================================================= */
@media (max-width:1240px){
  .hang{left:10px}
  .hang.is-open .hang__card{width:232px}
}
@media (max-width:900px){
  .hang{
    left:14px;top:auto;bottom:16px;transform:none;
    border-radius:999px;
  }
  .hang.is-open{border-radius:22px}
  .hang__rail{
    width:auto;height:48px;padding:0 16px 0 10px;
    flex-direction:row;gap:8px;border-radius:999px;
  }
  .hang__qrmini{width:30px;height:30px;border-radius:8px}
  .hang__vt{writing-mode:horizontal-tb;letter-spacing:0;font-size:12.5px;padding:0}
  .hang__railico{width:24px;height:24px}
  .hang__card{
    width:min(320px,calc(100vw - 28px));
    max-height:76vh;overflow:auto;
    padding:14px 15px 12px;
  }
  .hang.is-open .hang__card{width:min(320px,calc(100vw - 28px))}
  .hang__qrbox{width:128px;height:128px}
}
@media (max-width:640px){
  .qm{padding:12px;align-items:end}
  .qm__card{border-radius:24px;max-height:90vh;padding:22px 18px 18px}
  .qm__grid{grid-template-columns:minmax(0,1fr);gap:12px}
  .qm__qr{grid-auto-flow:column;justify-items:start;justify-content:start;gap:10px;padding:12px 14px;text-align:left}
  .qm__qr .qr{width:72px;height:72px;grid-row:1/4}
  .qm__qr b{margin-top:0;align-self:end}
  .qm-p__tel{font-size:22px}
  .qm__x{right:12px;top:12px}
  /* 手机上二维码扫不了自己屏幕；收起态收成小圆钮，少挡内容 */
  .hang__qrmini,.hang__vt{display:none}
  .hang__rail{width:46px;height:46px;padding:0;justify-content:center;gap:0}
  .hang__railico{width:26px;height:26px}
  .toast{bottom:84px}
}

/* ---------- 轻提示条（复制 / 提交反馈） ---------- */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translate(-50%,14px);
  padding:12px 20px;border-radius:999px;background:var(--ink);color:#fff;
  font-size:12.5px;letter-spacing:.2px;
  box-shadow:0 24px 44px -18px rgba(0,0,0,.75);
  opacity:0;pointer-events:none;z-index:400;
  transition:opacity .3s var(--ease),transform .3s var(--ease);
}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

/* 收起态：轻微脉冲提示可展开（仅前两次） */
.hang:not(.is-open) .hang__railico{animation:railPulse 2.6s var(--ease) 2}
@keyframes railPulse{
  0%,100%{box-shadow:0 0 0 0 rgba(255,208,47,.55)}
  50%{box-shadow:0 0 0 7px rgba(255,208,47,0)}
}