@charset "UTF-8";
/* ==========================================================================
   ALLIS SAGA · bauma CHINA 2026 预热营销页
   视觉配色依据客户品牌规范：黑 #1b1f20 / 品牌黄 #fac736
   ========================================================================== */

:root {
  --ink: #1b1f20;
  --ink-2: #22282a;
  --ink-3: #2d3436;
  --yellow: #fac736;
  --yellow-d: #e2ad1d;
  --yellow-l: #ffe27a;
  --bg: #f9f9f9;
  --white: #ffffff;
  --g1: #d1d1d1;
  --g2: #999999;
  --g3: #666666;
  --g4: #333333;
  --line: #e6e8e9;
  --shadow-s: 0 2px 10px rgba(27, 31, 32, .06);
  --shadow-m: 0 10px 30px rgba(27, 31, 32, .10);
  --shadow-l: 0 22px 60px rgba(27, 31, 32, .16);
  --maxw: 1240px;
  --hd: 84px;
  --font: "Inter", "Helvetica Neue", Helvetica, Arial, "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
          "Noto Sans CJK SC", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  font-family: var(--font);
  background: var(--white);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
/* <picture> 只作为格式兜底容器，不参与布局，避免影响 img 的尺寸计算 */
picture { display: contents; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font-family: inherit; font-size: inherit; }
button { cursor: pointer; border: none; background: none; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* 语言切换由 main.js 直接替换 [data-zh] / [data-en] 元素内容，
   此处不使用 display 规则，避免元素被整块隐藏 */

/* ========================= 通用组件 ========================= */
.sec { padding: 96px 0; position: relative; }
.sec--gray { background: var(--bg); }
.sec--dark { background: var(--ink); color: var(--white); }

.sec-head { text-align: center; margin-bottom: 56px; }

.sec-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--g3);
  margin-bottom: 12px;
}
.sec--dark .sec-tag { color: var(--yellow); }

.sec-title {
  font-size: clamp(26px, 3.4vw, 42px);
  font-weight: 800;
  letter-spacing: .01em;
  line-height: 1.28;
}
.sec-title em { font-style: normal; color: var(--yellow-d); }
.sec--dark .sec-title em { color: var(--yellow); }

.sec-sub {
  margin-top: 14px;
  color: var(--g3);
  font-size: 16px;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}
.sec--dark .sec-sub { color: rgba(255,255,255,.66); }

.rule {
  width: 56px; height: 4px; border-radius: 2px;
  background: var(--yellow);
  margin: 20px auto 0;
}
.rule--left { margin-left: 0; }

/* 斜切平行四边形 —— 呼应 logo 图形语言 */
.para-mark {
  position: absolute; pointer-events: none;
  background: var(--yellow);
  transform: skewY(-11deg);
  opacity: .1;
}

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  height: 52px; padding: 0 30px; border-radius: 6px;
  font-weight: 700; font-size: 16px; letter-spacing: .02em;
  transition: .26s cubic-bezier(.2,.7,.3,1); white-space: nowrap;
}
.btn--yellow { background: var(--yellow); color: var(--ink); }
.btn--yellow:hover { background: var(--yellow-l); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(250,199,54,.36); }
.btn--ghost { border: 1.5px solid rgba(255,255,255,.45); color: #fff; }
.btn--ghost:hover { border-color: var(--yellow); color: var(--yellow); }
.btn--dark { background: var(--ink); color: #fff; }
.btn--dark:hover { background: var(--ink-3); transform: translateY(-2px); }
.btn--sm { height: 42px; padding: 0 20px; font-size: 14px; }
.btn svg { flex: none; }

/* ========================= 顶部导航 ========================= */
.hd {
  position: fixed; inset: 0 0 auto 0; z-index: 900; height: var(--hd);
  display: flex; align-items: center;
  background: rgba(27,31,32,.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: background .3s, border-color .3s;
}
.hd.is-solid { background: rgba(27,31,32,.97); border-bottom-color: rgba(255,255,255,.12); }
.hd__in { display: flex; align-items: center; gap: 26px; width: 100%; }
.hd__logo { display: flex; align-items: center; flex: none; }
.hd__logo img { height: 58px; width: auto; }
.hd__nav { display: flex; gap: 4px; margin-left: auto; }
.hd__nav a {
  color: rgba(255,255,255,.8); font-size: 15px; font-weight: 500;
  padding: 9px 13px; border-radius: 5px; transition: .2s; position: relative;
}
.hd__nav a:hover { color: var(--yellow); background: rgba(255,255,255,.06); }
.hd__nav a.on { color: var(--yellow); }
.hd__act { display: flex; align-items: center; gap: 14px; flex: none; }

/* 语言切换 */
.lang {
  display: flex; align-items: center; padding: 3px; border-radius: 999px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.16);
  height: 36px;
}
.lang button {
  height: 30px; padding: 0 15px; border-radius: 999px;
  color: rgba(255,255,255,.72); font-size: 13px; font-weight: 700;
  letter-spacing: .04em; transition: .22s;
}
.lang button.on { background: var(--yellow); color: var(--ink); }

.burger { display: none; width: 40px; height: 40px; border-radius: 6px; color: #fff; }
.burger:hover { background: rgba(255,255,255,.1); }

/* ========================= HERO ========================= */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding: calc(var(--hd) + 60px) 0 70px;
  background: var(--ink); overflow: hidden;
  color: #fff;
}
.hero__bg {
  position: absolute; inset: 0;
  background: url("../img/brand/factory.jpg") center 42% / cover no-repeat;
  /* 支持 WebP 的浏览器自动使用体积更小的版本 */
  background-image: image-set(
    url("../img/brand/factory.webp") type("image/webp"),
    url("../img/brand/factory.jpg") type("image/jpeg")
  );
  background-position: center 42%;
  background-size: cover;
  background-repeat: no-repeat;
  transform: scale(1.04);
}
.hero__ov {
  position: absolute; inset: 0;
  background:
    linear-gradient(100deg, rgba(23,26,27,.94) 0%, rgba(23,26,27,.86) 38%, rgba(23,26,27,.52) 68%, rgba(23,26,27,.62) 100%),
    linear-gradient(180deg, rgba(23,26,27,.55) 0%, rgba(23,26,27,.2) 40%, rgba(23,26,27,.92) 100%);
}
.hero__mark { width: 46vw; height: 62vh; top: -12%; right: -6%; opacity: .08; }
.hero__mark2 { width: 22vw; height: 30vh; bottom: -8%; left: 32%; opacity: .05; }

.hero__in { position: relative; z-index: 3; width: 100%; }
.hero__grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 60px; align-items: center; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  height: 36px; padding: 0 16px; border-radius: 999px;
  background: rgba(250,199,54,.14); border: 1px solid rgba(250,199,54,.42);
  color: var(--yellow); font-size: 13.5px; font-weight: 700; letter-spacing: .08em;
  margin-bottom: 26px;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--yellow); animation: pulse 1.9s infinite; }
@keyframes pulse { 0%,100%{ opacity:1; transform:scale(1);} 50%{ opacity:.35; transform:scale(1.5);} }

.hero h1 {
  font-size: clamp(34px, 4.6vw, 62px);
  font-weight: 900; line-height: 1.14; letter-spacing: -.01em;
}
.hero h1 .hl {
  color: var(--yellow);
  position: relative; display: inline-block;
}
.hero h1 .hl::after {
  content: ""; position: absolute; left: 2%; right: 2%; bottom: .1em; height: .13em;
  background: var(--yellow); opacity: .28; border-radius: 2px;
}
/* 展会名小徽标：跟在“诚邀您莅临”后面 */
.hero h1 .h1ix {
  display: inline-block; margin-left: .22em;
  font-size: .38em; font-weight: 800; letter-spacing: .02em;
  color: var(--yellow); white-space: nowrap;
  padding: .18em .46em; border-radius: 6px;
  background: rgba(250,199,54,.14); border: 1px solid rgba(250,199,54,.42);
  transform: translateY(-.18em);
}
.hero__lead {
  margin-top: 26px; font-size: 17px; line-height: 1.85;
  color: rgba(255,255,255,.8); max-width: 620px;
}
/* 英文标题偏长，字号略降，保证断行整齐（两行） */
body.lang-en .hero h1 { font-size: clamp(25px, 3.1vw, 44px); }
.hero__btns { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }

.hero__meta {
  display: flex; flex-wrap: wrap; gap: 12px 30px; margin-top: 40px;
  padding-top: 26px; border-top: 1px solid rgba(255,255,255,.15);
}
.hero__meta div { font-size: 14px; color: rgba(255,255,255,.62); }
.hero__meta b {
  display: block; color: #fff; font-size: 17px; font-weight: 700;
  margin-top: 3px; letter-spacing: .02em;
}

/* 展位信息卡 */
.booth {
  background: rgba(255,255,255,.07);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 14px; padding: 30px 30px 26px;
  box-shadow: var(--shadow-l);
  position: relative; overflow: hidden;
}
.booth::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 5px;
  background: linear-gradient(180deg, var(--yellow), var(--yellow-d));
}
.booth__no {
  display: flex; align-items: baseline; gap: 10px; margin-bottom: 4px;
}
.booth__no span { font-size: 13px; color: rgba(255,255,255,.6); letter-spacing: .14em; text-transform: uppercase; }
.booth__no strong {
  font-size: 40px; font-weight: 900; color: var(--yellow); line-height: 1;
  letter-spacing: -.01em;
}
.booth__list { margin-top: 20px; display: grid; gap: 13px; }
.booth__list li {
  display: grid; grid-template-columns: 22px 1fr; gap: 11px;
  font-size: 14.5px; color: rgba(255,255,255,.82); line-height: 1.55; list-style: none;
}
.booth__list svg { margin-top: 4px; color: var(--yellow); }
.booth__list b { color: #fff; font-weight: 700; }

/* 倒计时 */
.cd { margin-top: 24px; padding-top: 22px; border-top: 1px dashed rgba(255,255,255,.2); }.cd__t { font-size: 12.5px; letter-spacing: .18em; text-transform: uppercase; color: rgba(255,255,255,.55); margin-bottom: 12px; }
.cd__row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 9px; }
.cd__c {
  background: rgba(0,0,0,.32); border: 1px solid rgba(255,255,255,.12);
  border-radius: 9px; padding: 11px 4px 9px; text-align: center;
}
.cd__c b {
  display: block; font-size: 30px; font-weight: 800; color: var(--yellow);
  line-height: 1; font-variant-numeric: tabular-nums; letter-spacing: -.02em;
}
.cd__c span { display: block; font-size: 11.5px; color: rgba(255,255,255,.6); margin-top: 6px; }

/* 展位卡内的观众登记二维码 */
.booth__qr {
  margin-top: 20px; padding: 15px;
  display: grid; grid-template-columns: 118px 1fr; gap: 15px; align-items: center;
  background: rgba(250,199,54,.1);
  border: 1px solid rgba(250,199,54,.42);
  border-radius: 11px;
}
.booth__qr-box {
  display: block; background: #fff; border-radius: 8px; padding: 7px;
  transition: transform .26s;
}
.booth__qr-box:hover { transform: scale(1.04); }
.booth__qr-box img { width: 100%; height: auto; display: block; }
.booth__qr-tx { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.booth__qr-tx b { font-size: 16px; font-weight: 800; color: #fff; line-height: 1.3; }
.booth__qr-tx span { font-size: 12.5px; color: rgba(255,255,255,.72); line-height: 1.45; }
.booth__qr-tx em {
  font-style: normal; font-size: 13px; font-weight: 700; color: var(--yellow);
  letter-spacing: .01em;
}

/* ========================= 为什么参观 ========================= */
.why__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.why__card {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 36px 28px 32px; transition: .3s cubic-bezier(.2,.7,.3,1);
  position: relative; overflow: hidden;
}
.why__card::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 4px;
  background: var(--yellow); transform: scaleX(0); transform-origin: left; transition: transform .36s;
}
.why__card:hover { transform: translateY(-6px); box-shadow: var(--shadow-m); border-color: transparent; }
.why__card:hover::after { transform: scaleX(1); }
.why__ico {
  width: 58px; height: 58px; border-radius: 12px; display: grid; place-items: center;
  background: var(--ink); color: var(--yellow); margin-bottom: 22px;
  transition: .3s;
}
.why__card:hover .why__ico { background: var(--yellow); color: var(--ink); }
.why__n {
  position: absolute; top: 22px; right: 24px;
  font-size: 46px; font-weight: 900; color: #f0f1f2; line-height: 1; letter-spacing: -.04em;
}
.why__card h3 { font-size: 19px; font-weight: 800; margin-bottom: 10px; }
.why__card p { font-size: 14.5px; color: var(--g3); line-height: 1.75; }
.why__card .badge {
  display: inline-block; margin-top: 14px; padding: 3px 11px; border-radius: 4px;
  background: rgba(250,199,54,.18); color: #8a6410; font-size: 12.5px; font-weight: 700;
}

/* ========================= 核心产品 ========================= */
.pr-tabs { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-bottom: 40px; }
.pr-tabs button {
  height: 40px; padding: 0 20px; border-radius: 999px; font-size: 14px; font-weight: 600;
  color: var(--g3); background: #fff; border: 1px solid var(--line); transition: .22s;
}
.pr-tabs button:hover { border-color: var(--g1); color: var(--ink); }
.pr-tabs button.on { background: var(--ink); border-color: var(--ink); color: #fff; }

.pr-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.pr {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  overflow: hidden; display: flex; flex-direction: column;
  transition: .3s cubic-bezier(.2,.7,.3,1); position: relative;
}
.pr:hover { transform: translateY(-6px); box-shadow: var(--shadow-m); border-color: transparent; }
.pr__pic {
  position: relative; height: 236px; overflow: hidden;
  /* 接近纯白的浅底板：透明抠图 PNG 与影棚白底 JPG 均可无缝融合 */
  background: #f7f8f9;
  border-bottom: 1px solid var(--line);
}
/* 用绝对定位 + calc 给图片确定的宽高，
   避免 grid 中百分比高度依赖行高造成的循环解析（会溢出压住标题）。
   顶部刻意留 50px 避让左上角分类标签与右上角编号（标签底边约 41px）：
   扁宽比例的产品图（如给料机 900x474）横向铺开后会把标签整块盖住 */
.pr__pic img {
  position: absolute; top: 50px; left: 18px;
  width: calc(100% - 36px);
  height: calc(100% - 68px);
  object-fit: contain;
  object-position: center;
  transition: transform .45s cubic-bezier(.2,.7,.3,1);
}
.pr:hover .pr__pic img { transform: scale(1.05); }
.pr__cat {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  padding: 4px 11px; border-radius: 4px; font-size: 11.5px; font-weight: 800;
  letter-spacing: .1em; text-transform: uppercase;
  background: var(--ink); color: var(--yellow);
}
.pr__row {
  position: absolute; top: 14px; right: 14px; z-index: 2;
  font-size: 11.5px; font-weight: 700; color: var(--g2); letter-spacing: .08em;
}
.pr__bd { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.pr__bd h3 { font-size: 18px; font-weight: 800; line-height: 1.4; }
.pr__bd .en {
  font-size: 12.5px; color: var(--g2); font-weight: 600; letter-spacing: .03em;
  margin-top: 4px; text-transform: uppercase;
}
.pr__bd p { font-size: 14px; color: var(--g3); line-height: 1.72; margin-top: 12px; flex: 1; }
.pr__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.pr__tags span {
  font-size: 12px; padding: 3px 10px; border-radius: 4px;
  background: var(--bg); color: var(--g3); border: 1px solid var(--line);
}
.pr__more {
  margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
  font-size: 13.5px; font-weight: 700; color: var(--ink);
}
.pr__more svg { transition: transform .3s; color: var(--yellow-d); }
.pr:hover .pr__more svg { transform: translateX(5px); }

.pr-note {
  margin-top: 34px; text-align: center; font-size: 14px; color: var(--g2);
}

/* ========================= 展位服务 ========================= */
.svc { background: var(--ink); color: #fff; overflow: hidden; }
.svc__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.svc__c {
  border: 1px solid rgba(255,255,255,.14); border-radius: 14px;
  padding: 34px 26px 30px; background: rgba(255,255,255,.035);
  transition: .3s; position: relative; overflow: hidden;
}
.svc__c:hover { background: rgba(250,199,54,.1); border-color: rgba(250,199,54,.5); transform: translateY(-5px); }
.svc__ico {
  width: 54px; height: 54px; border-radius: 12px; display: grid; place-items: center;
  background: var(--yellow); color: var(--ink); margin-bottom: 20px;
}
.svc__c h3 { font-size: 17.5px; font-weight: 800; }
.svc__c .en { font-size: 12.5px; color: rgba(255,255,255,.5); letter-spacing: .04em; margin-top: 5px; }
.svc__c p { font-size: 14px; color: rgba(255,255,255,.66); line-height: 1.7; margin-top: 12px; }

/* ========================= 全球案例 ========================= */
.cs__tabs { display: flex; justify-content: center; gap: 8px; margin-bottom: 34px; }
.cs__tabs button {
  height: 42px; padding: 0 26px; border-radius: 999px; font-size: 14.5px; font-weight: 700;
  color: var(--g3); background: #fff; border: 1px solid var(--line); transition: .22s;
}
.cs__tabs button.on { background: var(--yellow); border-color: var(--yellow); color: var(--ink); }
.cs__tabs button:hover:not(.on) { border-color: var(--g1); color: var(--ink); }

.cs__stage {
  position: relative; border-radius: 16px; overflow: hidden; background: var(--ink);
  box-shadow: var(--shadow-l); aspect-ratio: 16 / 8.4;
}
.cs__slide {
  position: absolute; inset: 0; opacity: 0; visibility: hidden;
  transition: opacity .7s ease, transform .7s ease; transform: scale(1.05);
}
.cs__slide.on { opacity: 1; visibility: visible; transform: scale(1); }
.cs__slide img { width: 100%; height: 100%; object-fit: cover; }
.cs__cap {
  position: absolute; inset: auto 0 0 0; padding: 90px 42px 34px;
  background: linear-gradient(180deg, rgba(23,26,27,0) 0%, rgba(23,26,27,.72) 42%, rgba(23,26,27,.95) 100%);
  color: #fff;
}
.cs__cap .tag {
  display: inline-block; padding: 4px 12px; border-radius: 4px; margin-bottom: 12px;
  background: var(--yellow); color: var(--ink); font-size: 12px; font-weight: 800;
  letter-spacing: .1em; text-transform: uppercase;
}
.cs__cap h3 { font-size: clamp(21px, 2.4vw, 30px); font-weight: 800; line-height: 1.35; }
.cs__cap p { font-size: 14.5px; color: rgba(255,255,255,.82); margin-top: 9px; display: flex; align-items: center; gap: 8px; }
.cs__cap p svg { color: var(--yellow); flex: none; }

.cs__nav {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 50px; height: 50px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(255,255,255,.9); color: var(--ink); transition: .24s;
  box-shadow: 0 4px 16px rgba(0,0,0,.2);
}
.cs__nav:hover { background: var(--yellow); }
.cs__nav--p { left: 20px; }
.cs__nav--n { right: 20px; }

.cs__dots { display: flex; justify-content: center; gap: 7px; margin-top: 22px; flex-wrap: wrap; }
.cs__dots i {
  width: 8px; height: 8px; border-radius: 50%; background: var(--g1);
  cursor: pointer; transition: .25s;
}
.cs__dots i.on { background: var(--yellow-d); width: 24px; border-radius: 4px; }

.cs__strip {
  display: flex; gap: 12px; margin-top: 22px; overflow-x: auto; padding-bottom: 8px;
  scrollbar-width: thin;
}
.cs__strip::-webkit-scrollbar { height: 5px; }
.cs__strip::-webkit-scrollbar-thumb { background: var(--g1); border-radius: 3px; }
.cs__strip button {
  flex: none; width: 132px; height: 84px; border-radius: 9px; overflow: hidden;
  border: 2.5px solid transparent; opacity: .55; transition: .25s; position: relative;
  background: var(--bg);
}
.cs__strip button img { width: 100%; height: 100%; object-fit: cover; }
.cs__strip button.on { border-color: var(--yellow); opacity: 1; }
.cs__strip button:hover { opacity: 1; }

/* ========================= 实力 / 关于 ========================= */
.ab__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }
.ab__pic { position: relative; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-m); }
.ab__pic img { width: 100%; height: 420px; object-fit: cover; }
.ab__pic .cap {
  position: absolute; left: 0; bottom: 0; padding: 10px 20px;
  background: var(--yellow); color: var(--ink); font-size: 13.5px; font-weight: 800;
  letter-spacing: .06em;
}
.ab h2 { font-size: clamp(25px, 3vw, 38px); font-weight: 800; line-height: 1.3; }
.ab p.lead { margin-top: 20px; color: var(--g3); font-size: 15.5px; line-height: 1.9; }

.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 34px; }
.stats__c {
  background: var(--bg); border: 1px solid var(--line); border-radius: 12px;
  padding: 20px 22px;
}
.stats__c b {
  display: block; font-size: 34px; font-weight: 900; color: var(--ink); line-height: 1;
  letter-spacing: -.02em; font-variant-numeric: tabular-nums;
}
.stats__c b em { font-style: normal; color: var(--yellow-d); font-size: 24px; }
/* 只作用于描述文字，避免命中 b 内部的数字 span */
.stats__c > span { display: block; font-size: 13px; color: var(--g3); margin-top: 8px; line-height: 1.5; }
.stats__c b .num { display: inline; font-size: inherit; color: inherit; margin: 0; }

/* ========================= 预约表单 ========================= */
.form { background: var(--ink); color: #fff; position: relative; overflow: hidden; }
.form__grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 60px; align-items: start; }
.form__l h2 { font-size: clamp(26px, 3.2vw, 40px); font-weight: 800; line-height: 1.3; }
.form__l p { margin-top: 20px; color: rgba(255,255,255,.68); font-size: 15.5px; line-height: 1.85; }

.form__bar {
  margin-top: 30px; border-radius: 12px; padding: 22px 24px;
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14);
  border-left: 4px solid var(--yellow);
}
.form__bar dl { display: grid; gap: 11px; }
.form__bar div { display: flex; gap: 10px; font-size: 14.5px; }
.form__bar dt { color: rgba(255,255,255,.55); flex: none; min-width: 56px; }
.form__bar dd { color: #fff; font-weight: 600; }

.form__tips { margin-top: 26px; display: grid; gap: 12px; }
.form__tips li {
  list-style: none; display: grid; grid-template-columns: 20px 1fr; gap: 11px;
  font-size: 14.5px; color: rgba(255,255,255,.72); line-height: 1.6;
}
.form__tips svg { color: var(--yellow); margin-top: 4px; }

.fbox {
  background: #fff; border-radius: 16px; padding: 36px 36px 32px;
  box-shadow: var(--shadow-l); color: var(--ink);
}
.fbox h3 { font-size: 20px; font-weight: 800; margin-bottom: 6px; }
.fbox .hint { font-size: 13.5px; color: var(--g2); margin-bottom: 24px; }

/* 邮件联系卡片（原预约表单替换） */
.fbox--mail .mailcard {
  display: flex; align-items: center; gap: 16px;
  background: var(--ink); color: #fff; border-radius: 10px;
  padding: 22px 24px; text-decoration: none;
  border: 1px solid rgba(255,255,255,.08);
  transition: transform .3s cubic-bezier(.2,.7,.3,1), box-shadow .3s;
}
.fbox--mail .mailcard:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(27,31,32,.22);
}
.mailcard__ico {
  width: 58px; height: 58px; flex: none; border-radius: 12px;
  background: var(--yellow); color: var(--ink);
  display: grid; place-items: center;
}
.mailcard__tx { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.mailcard__tx span { font-size: 12.5px; color: rgba(255,255,255,.62); letter-spacing: .08em; text-transform: uppercase; }
.mailcard__tx b {
  font-size: 16.5px; font-weight: 700; word-break: break-all; line-height: 1.35;
}
.mailcard:hover .mailcard__tx b { color: var(--yellow); }

.mailsub {
  display: grid; grid-template-columns: 1fr; gap: 14px;
  margin-top: 18px; padding: 18px 20px;
  background: #f7f8f9; border-radius: 10px; border: 1px solid var(--line);
}
.mailsub > div { display: flex; flex-direction: column; gap: 4px; }
.mailsub span { font-size: 11.5px; color: var(--g3); letter-spacing: .06em; }
.mailsub b { font-size: 15px; font-weight: 700; color: var(--ink); }
.mailsub a b { border-bottom: 2px solid var(--yellow); }
.mailsub a:hover b { color: var(--yellow-d); }

.fstatus {
  display: flex; align-items: center; gap: 8px;
  background: #fff7e3; border: 1px solid #f3d779; border-radius: 6px;
  padding: 9px 12px; font-size: 12.5px; color: #7a5a00;
  margin: -8px 0 16px;
}
.fstatus .dot {
  width: 8px; height: 8px; border-radius: 50%; background: #d49a00; flex: none;
  animation: fblink 1.4s ease-in-out infinite;
}
@keyframes fblink { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

.fgrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 15px; }
.fld { display: flex; flex-direction: column; gap: 7px; }
.fld--full { grid-column: 1 / -1; }
.fld label { font-size: 13.5px; font-weight: 700; color: var(--g4); }
.fld label i { color: #d64545; font-style: normal; }
.fld input, .fld select, .fld textarea {
  width: 100%; border: 1.5px solid var(--line); border-radius: 8px;
  padding: 12px 14px; font-size: 15px; background: #fcfcfd;
  transition: .2s; color: var(--ink); outline: none;
}
.fld select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2.4'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 38px; }
.fld textarea { resize: vertical; min-height: 100px; line-height: 1.6; }
.fld input:focus, .fld select:focus, .fld textarea:focus {
  border-color: var(--yellow); background: #fff; box-shadow: 0 0 0 3px rgba(250,199,54,.18);
}
.fld input::placeholder, .fld textarea::placeholder { color: #b3b7b9; }
.fld .err { font-size: 12.5px; color: #d64545; display: none; }
.fld.bad input, .fld.bad select, .fld.bad textarea { border-color: #e08a8a; background: #fff8f8; }
.fld.bad .err { display: block; }

.fsub { margin-top: 22px; }
.fsub .btn { width: 100%; height: 54px; font-size: 16.5px; }
.fprivacy { margin-top: 14px; font-size: 12.5px; color: var(--g2); text-align: center; line-height: 1.6; }

.fdone { display: none; text-align: center; padding: 22px 6px 10px; }
.fdone.on { display: block; }
.fdone .ico {
  width: 74px; height: 74px; border-radius: 50%; background: rgba(250,199,54,.2);
  display: grid; place-items: center; margin: 0 auto 20px; color: var(--yellow-d);
}
.fdone h3 { font-size: 23px; font-weight: 800; }
.fdone p { font-size: 14.5px; color: var(--g3); margin-top: 12px; line-height: 1.8; }
.fdone .mail {
  display: inline-block; margin-top: 20px; font-weight: 700; color: var(--ink);
  border-bottom: 2px solid var(--yellow); padding-bottom: 2px;
}

/* ========================= 页脚 ========================= */
.ft { background: #151819; color: rgba(255,255,255,.72); padding: 76px 0 0; }
.ft__grid { display: grid; grid-template-columns: 1.35fr .95fr 1.2fr 1.05fr; gap: 40px; }
.ft h4 {
  color: #fff; font-size: 15px; font-weight: 800; letter-spacing: .06em;
  margin-bottom: 20px; position: relative; padding-bottom: 13px;
}
.ft h4::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 30px; height: 3px;
  background: var(--yellow); border-radius: 2px;
}
.ft p, .ft li { font-size: 14px; line-height: 1.85; }
.ft ul { list-style: none; display: grid; gap: 12px; }
.ft ul li { display: grid; grid-template-columns: 18px 1fr; gap: 10px; }
.ft ul svg { color: var(--yellow); margin-top: 5px; flex: none; }
.ft a:hover { color: var(--yellow); }
.ft__brand { display: flex; align-items: center; gap: 12px; margin-bottom: 22px; }
.ft__brand img { height: 58px; width: auto; }

.qrs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.qr { text-align: center; }
.qr__b {
  background: #fff; border-radius: 9px; padding: 8px; margin-bottom: 8px;
  transition: .26s; display: block;
}
.qr__b:hover { transform: translateY(-4px); box-shadow: 0 10px 24px rgba(0,0,0,.4); }
.qr img { width: 100%; height: auto; border-radius: 4px; }
.qr span { font-size: 12px; color: rgba(255,255,255,.6); line-height: 1.4; display: block; }

/* 页脚第 4 个码：主办方观众免费登记（黄框强调） */
.qr--visitor .qr__b {
  border: 2px solid var(--yellow);
  box-shadow: 0 0 0 4px rgba(250,199,54,.14);
}
.qr--visitor .qr__b:hover { box-shadow: 0 10px 24px rgba(0,0,0,.4), 0 0 0 4px rgba(250,199,54,.22); }
.qr--visitor span { color: #fff; font-weight: 700; }
.qr--visitor em {
  font-style: normal; display: block; font-size: 11px; color: var(--yellow);
  margin-top: 2px; line-height: 1.4; font-weight: 600;
}

.ft__bar {
  margin-top: 56px; padding: 22px 0; border-top: 1px solid rgba(255,255,255,.1);
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between;
  align-items: center; font-size: 13px; color: rgba(255,255,255,.45);
}
.ft__bar .beian { display: flex; gap: 16px; flex-wrap: wrap; }
.ft__bar a:hover { color: var(--yellow); }

/* ========================= 悬浮条 ========================= */
.float {
  position: fixed; left: 50%; bottom: 26px; transform: translate(-50%, 130%);
  z-index: 800; display: flex; align-items: center; gap: 18px;
  padding: 11px 11px 11px 24px; border-radius: 999px;
  background: rgba(27,31,32,.94); backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: 0 16px 40px rgba(0,0,0,.34);
  transition: transform .45s cubic-bezier(.2,.7,.3,1);
  white-space: nowrap;
}
.float.on { transform: translate(-50%, 0); }
.float__t { color: #fff; font-size: 14px; }
.float__t b { color: var(--yellow); font-weight: 800; }
.float .btn { height: 42px; padding: 0 22px; font-size: 14.5px; }

/* 返回顶部 */
.top {
  position: fixed; right: 26px; bottom: 26px; z-index: 800;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--ink); color: var(--yellow); display: grid; place-items: center;
  box-shadow: 0 8px 24px rgba(0,0,0,.24); opacity: 0; visibility: hidden;
  transition: .3s;
}
.top.on { opacity: 1; visibility: visible; }
.top:hover { background: var(--yellow); color: var(--ink); }

/* ========================= 动效 ========================= */
.rv { opacity: 0; transform: translateY(30px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.3,1); }
.rv.in { opacity: 1; transform: none; }
.rv-d1 { transition-delay: .08s; }
.rv-d2 { transition-delay: .16s; }
.rv-d3 { transition-delay: .24s; }
.rv-d4 { transition-delay: .32s; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .rv { opacity: 1; transform: none; }
}

@media (min-width: 1121px) {
  .mnav { display: none; }
}

/* ========================= 响应式 ========================= */
@media (max-width: 1120px) {
  .hd__nav { display: none; }
  /* 导航隐藏后，由 .hd__act 承担把操作区推到右侧的任务 */
  .hd__act { margin-left: auto; }
  .burger { display: grid; place-items: center; }
  .hero__grid { grid-template-columns: 1fr; gap: 44px; }
  .booth { max-width: 560px; }
  .ab__grid { grid-template-columns: 1fr; gap: 40px; }
  .form__grid { grid-template-columns: 1fr; gap: 40px; }
  .ft__grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .why__grid { grid-template-columns: repeat(2, 1fr); }
  .svc__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .pr-grid { grid-template-columns: repeat(2, 1fr); }
  .cs__stage { aspect-ratio: 16 / 11; }
  .cs__cap { padding: 70px 24px 24px; }
  .cs__nav { width: 42px; height: 42px; }
  .cs__nav--p { left: 10px; }
  .cs__nav--n { right: 10px; }
}

@media (max-width: 680px) {
  :root { --hd: 66px; }
  .sec { padding: 68px 0; }
  .wrap { padding: 0 18px; }

  /* 顶栏：压缩尺寸，保证 logo / 语言 / CTA / 汉堡菜单都能放得下 */
  .hd__in { gap: 10px; }
  .hd__logo img { height: 40px; }
  .hd__act { gap: 8px; }
  .lang { height: 32px; padding: 2px; }
  .lang button { height: 26px; padding: 0 11px; font-size: 12.5px; }
  .hd__act .btn--sm { height: 36px; padding: 0 13px; font-size: 13.5px; }
  .burger { width: 36px; height: 36px; }

  .hero { min-height: auto; padding-bottom: 56px; }
  .hero h1 .h1ix { font-size: .44em; padding: .16em .4em; margin-left: .18em; }
  .hero__btns .btn { width: 100%; }
  .booth { padding: 24px 22px; }
  .booth__no strong { font-size: 32px; }
  .hourglass .cd__c b, .cd__c b { font-size: 25px; }
  .why__grid, .svc__grid { grid-template-columns: 1fr; }
  .pr-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .fgrid { grid-template-columns: 1fr; }
  .fbox { padding: 26px 20px 24px; }
  .ft__grid { grid-template-columns: 1fr; }
  .float { left: 12px; right: 12px; transform: translate(0, 150%); padding: 10px 10px 10px 18px; gap: 10px; }
  .float.on { transform: translate(0, 0); }
  .float__t { font-size: 12.5px; }
  .float .btn { height: 38px; padding: 0 14px; font-size: 13px; }
  .top { right: 14px; bottom: 96px; }
  .ft__bar { flex-direction: column; text-align: center; }
}

/* 超窄屏（≤420px）顶栏只保留 logo + 语言 + 汉堡，CTA 交给底部悬浮条 */
@media (max-width: 420px) {
  .hd__act > .btn { display: none; }
}

/* 移动端导航面板 */
.mnav {
  position: fixed; inset: var(--hd) 0 auto 0; z-index: 890;
  background: rgba(21,24,25,.99); padding: 16px 0 24px;
  transform: translateY(-14px); opacity: 0; visibility: hidden; pointer-events: none;
  transition: transform .38s cubic-bezier(.2,.7,.3,1), opacity .3s, visibility .38s;
  border-bottom: 1px solid rgba(255,255,255,.12);
  max-height: calc(100vh - var(--hd)); overflow-y: auto;
}
.mnav.on { transform: none; opacity: 1; visibility: visible; pointer-events: auto; }
.mnav a {
  display: block; color: rgba(255,255,255,.85); font-size: 16px; font-weight: 600;
  padding: 15px 24px; border-bottom: 1px solid rgba(255,255,255,.07);
}
.mnav a:last-child { border-bottom: none; }
.mnav a:hover { color: var(--yellow); background: rgba(255,255,255,.04); }