/* ==========================================================================
   PACKPRO MACHINERY — Global Stylesheet
   深灰主色 + 橙色强调 / 全站响应式
   1. Tokens  2. Base  3. Layout  4. Header  5. Hero  6. Components
   7. Sections  8. Forms  9. Footer  10. Overlays  11. Responsive
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  --ink: #1b1e21;
  --gray-950: #202428;
  --gray-900: #262b2f;
  --gray-850: #2d3237;
  --gray-800: #343a3f;
  --gray-700: #454c52;
  --gray-600: #5d656b;
  --gray-500: #79828a;
  --gray-400: #9aa3aa;
  --gray-300: #c4cbd1;
  --gray-200: #dfe4e8;
  --gray-100: #eef1f3;
  --gray-50: #f6f8f9;
  --white: #ffffff;

  --orange: #ff6a13;
  --orange-600: #e85d0b;
  --orange-100: rgba(255, 106, 19, 0.1);
  --orange-200: rgba(255, 106, 19, 0.22);

  --radius: 4px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 2px rgba(27, 30, 33, 0.06);
  --shadow: 0 10px 30px rgba(27, 30, 33, 0.09);
  --shadow-lg: 0 24px 60px rgba(27, 30, 33, 0.16);

  --wrap: 1240px;
  --gutter: 24px;
  --nav-h: 54px;                          /* 主导航条高度 */
  --masthead-h: 96px;                     /* 顶部品牌条高度 */
  --header-h: calc(var(--nav-h) + 4px);   /* 吸顶条总高（含底部深色粗线） */

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 2. Base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--gray-700);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.no-scroll { overflow: hidden; }

img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul, ol { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, h4, h5 {
  margin: 0;
  color: var(--ink);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}
p { margin: 0; }

::selection { background: var(--orange); color: #fff; }

:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 999;
  background: var(--orange); color: #fff; padding: 10px 18px;
  border-radius: var(--radius); transition: top 0.2s;
}
.skip-link:focus { top: 12px; }

/* ---------- 3. Layout ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.sec { padding: 96px 0; position: relative; }
.sec--tight { padding: 64px 0; }
.sec--gray { background: var(--gray-50); }
.sec--dark { background: var(--gray-950); color: var(--gray-300); }
.sec--dark h1, .sec--dark h2, .sec--dark h3, .sec--dark h4 { color: #fff; }
.sec--line { border-top: 1px solid var(--gray-200); }

.sec-head { max-width: 760px; margin-bottom: 56px; }
.sec-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-head--row {
  max-width: none; display: flex; align-items: flex-end;
  justify-content: space-between; gap: 32px;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; font-weight: 700; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--orange); margin-bottom: 16px;
}
.eyebrow::before {
  content: ""; width: 26px; height: 2px; background: var(--orange);
  display: inline-block;
}
.sec--dark .eyebrow { color: var(--orange); }

.h1 { font-size: clamp(2.1rem, 4.4vw, 3.5rem); line-height: 1.1; }
.h2 { font-size: clamp(1.6rem, 2.7vw, 2.35rem); line-height: 1.18; }
.h3 { font-size: clamp(1.15rem, 1.6vw, 1.4rem); }
.h4 { font-size: 1.05rem; }

.lead {
  margin-top: 18px; font-size: 1.06rem; line-height: 1.75;
  color: var(--gray-600);
}
.sec--dark .lead { color: var(--gray-400); }

.text-c { text-align: center; }
/* 仅屏幕阅读器 / 搜索引擎可见（视觉上不占位） */
.sr-only {
  position: absolute !important; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.stat-num {
  display: block; font-size: clamp(1.5rem, 2.4vw, 2rem); line-height: 1.1;
  color: var(--ink); letter-spacing: -0.02em; font-weight: 700;
}
.stat-lbl {
  display: block; margin-top: 4px; font-size: 12px; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--gray-500);
}
.sec--dark .stat-num { color: #fff; }
.sec--dark .stat-lbl { color: var(--gray-400); }
.mt-0 { margin-top: 0; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-40 { margin-top: 40px; }
.mt-56 { margin-top: 56px; }
.mb-0 { margin-bottom: 0; }

.grid { display: grid; gap: 28px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- 4. Header ---------- */
/* 4.1 品牌条：LOGO + WhatsApp 二维码 + 服务热线 */
.masthead {
  position: relative;
  background:
    radial-gradient(120% 170% at 88% -40%, rgba(255, 106, 19, 0.08), transparent 58%),
    linear-gradient(180deg, #e8edf1 0%, #f7f9fa 52%, #ffffff 100%);
  border-bottom: 1px solid var(--gray-100);
}
.masthead__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px; min-height: var(--masthead-h);
  padding-top: 10px; padding-bottom: 10px;
}
.masthead .logo { gap: 13px; }
.masthead .logo__img { height: 46px; }
.masthead .logo__name { font-size: 20px; letter-spacing: 0.08em; }
.masthead .logo__sub { font-size: 10.5px; letter-spacing: 0.18em; margin-top: 5px; }
.masthead.is-stuck { box-shadow: 0 6px 20px rgba(27, 30, 33, 0.07); }

.masthead__aside { display: flex; align-items: center; gap: 28px; }

.hotline { display: flex; align-items: center; gap: 13px; }
.hotline__ico {
  width: 42px; height: 42px; border-radius: 50%; flex: 0 0 auto;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-600) 100%);
  box-shadow: 0 6px 16px rgba(255, 106, 19, 0.26);
}
.hotline__ico svg {
  width: 21px; height: 21px; fill: none; stroke: #fff;
  stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round;
}
.hotline__meta { display: flex; flex-direction: column; line-height: 1.1; }
.hotline__label {
  font-size: 11px; font-weight: 700; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--gray-500);
}
.hotline__num {
  font-size: 22px; font-weight: 800; color: var(--ink);
  letter-spacing: 0.01em; margin-top: 4px; transition: color 0.2s;
  font-variant-numeric: tabular-nums;
}
.hotline__num:hover { color: var(--orange-600); }

/* 4.2 主导航条（吸顶，底部深色粗线） */
.header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 4px solid var(--ink);
  transition: box-shadow 0.25s var(--ease);
}
.header.is-stuck { box-shadow: 0 8px 26px rgba(27, 30, 33, 0.1); }
.header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; height: var(--nav-h);
}

.logo { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.logo__img {
  height: 40px; width: auto; display: block; flex: 0 0 auto;
}
/* 页脚为深色背景，logo 垫白色圆角块保证蓝色可读 */
.logo--foot .logo__img {
  height: 36px; padding: 5px; background: #fff; border-radius: 7px;
  box-sizing: content-box;
}
.logo__mark {
  width: 38px; height: 38px; border-radius: 3px; flex: 0 0 auto;
  background: var(--orange);
  display: grid; place-items: center;
  box-shadow: 0 4px 14px rgba(255, 106, 19, 0.32);
}
.logo__mark svg { width: 21px; height: 21px; fill: none; stroke: #fff; stroke-width: 1.9; }
.logo__text { display: flex; flex-direction: column; line-height: 1.1; }
.logo__name {
  font-size: 17px; font-weight: 800; letter-spacing: 0.06em;
  color: var(--ink); text-transform: uppercase;
}
.logo__sub {
  font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--gray-500); margin-top: 3px;
}

.nav { display: flex; align-items: stretch; justify-content: flex-start; flex: 1 1 auto; }
.nav__item { position: relative; display: flex; align-items: center; }
.nav__item + .nav__item::before {
  content: ""; flex: 0 0 auto; width: 1px; height: 17px;
  background: var(--gray-200);
}
.nav a {
  position: relative; display: flex; align-items: center; gap: 5px;
  height: var(--nav-h); padding: 0 22px;
  font-size: 19.5px; font-weight: 800; color: var(--gray-700);
  transition: color 0.2s; white-space: nowrap;
}
.nav a::after {
  content: ""; position: absolute; left: 24px; right: 24px; bottom: -4px;
  height: 4px; background: var(--orange);
  transform: scaleX(0); transform-origin: center;
  transition: transform 0.25s var(--ease);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after { transform: scaleX(1); }
.nav a.is-active { color: var(--ink); }
.nav a.is-active::after { transform: scaleX(1); }
.nav .caret {
  width: 12px; height: 12px; fill: none; stroke: currentColor;
  stroke-width: 2.2; opacity: 0.5; transition: transform 0.2s, opacity 0.2s;
}
.nav__item--menu:hover .caret { transform: rotate(180deg); opacity: 1; }

/* 产品中心下拉 */
.nav__menu {
  position: absolute; top: calc(100% + 4px); left: 22px; z-index: 5;
  min-width: 252px; padding: 8px;
  background: #fff; border: 1px solid var(--gray-200);
  border-radius: 6px; box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity 0.18s, transform 0.18s, visibility 0.18s;
}
.nav__item--menu:hover .nav__menu,
.nav__item--menu:focus-within .nav__menu {
  opacity: 1; visibility: visible; transform: none;
}
.nav__menu a {
  display: block; height: auto; padding: 9px 12px;
  font-size: 14px; font-weight: 500; color: var(--gray-700);
  border-radius: 4px;
}
.nav__menu a::after { display: none; }
.nav__menu a:hover { background: var(--gray-50); color: var(--orange-600); }

.header__actions { display: flex; align-items: center; gap: 14px; flex: 0 0 auto; }

.lang {
  display: inline-flex; border: 1px solid var(--gray-200);
  border-radius: 40px; padding: 3px; background: var(--gray-50);
}
.lang button {
  border: 0; background: transparent; color: var(--gray-500);
  font-size: 12.5px; font-weight: 700; letter-spacing: 0.04em;
  padding: 5px 11px; border-radius: 40px; transition: all 0.18s;
}
.lang button.is-on { background: var(--gray-900); color: #fff; }

.burger {
  display: none; width: 42px; height: 42px; border: 1px solid var(--gray-200);
  background: #fff; border-radius: var(--radius); position: relative;
}
.burger span {
  position: absolute; left: 11px; right: 11px; height: 2px;
  background: var(--ink); border-radius: 2px; transition: all 0.25s var(--ease);
}
.burger span:nth-child(1) { top: 14px; }
.burger span:nth-child(2) { top: 20px; }
.burger span:nth-child(3) { top: 26px; }
.burger.is-on span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.burger.is-on span:nth-child(2) { opacity: 0; }
.burger.is-on span:nth-child(3) { top: 20px; transform: rotate(-45deg); }

.mobile-nav {
  position: fixed; inset: 0 0 0 auto; width: min(86vw, 340px);
  background: #fff; z-index: 120; transform: translateX(102%);
  transition: transform 0.32s var(--ease);
  display: flex; flex-direction: column; box-shadow: var(--shadow-lg);
  overflow-y: auto; padding: 22px;
}
.mobile-nav.is-open { transform: none; }
.mobile-nav__top {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 18px; border-bottom: 1px solid var(--gray-200); margin-bottom: 8px;
}
.mobile-nav__lang { padding: 14px 0 4px; }
.mobile-nav__lang .lang { display: flex; width: 100%; }
.mobile-nav__lang .lang button { flex: 1; padding: 8px 0; font-size: 13px; }
.mobile-nav a.m-link {
  display: block; padding: 15px 4px; font-size: 16px; font-weight: 600;
  color: var(--ink); border-bottom: 1px solid var(--gray-100);
}
.mobile-nav a.m-link.is-active { color: var(--orange); }
.mobile-nav__foot { margin-top: 22px; display: grid; gap: 12px; }
.mobile-nav__contact { font-size: 13px; color: var(--gray-600); line-height: 1.9; }
.scrim {
  position: fixed; inset: 0; background: rgba(20, 23, 26, 0.5);
  opacity: 0; pointer-events: none; z-index: 110; transition: opacity 0.3s;
}
.scrim.is-on { opacity: 1; pointer-events: auto; }

/* ---------- 5. Hero ---------- */
/* 首屏只做图片轮播：给定高度，无文字层 */
.hero {
  position: relative; overflow: hidden; background: var(--gray-950);
  color: #fff; isolation: isolate;
  /* 加高后再收 10%；50.2vw 兜住上限，避免超窄/超高窗口把宽幅横幅裁坏 */
  height: var(--hero-h, min(clamp(452px, 72vh, 880px), 50.2vw));
  border-bottom: 1px solid rgba(0, 0, 0, 0.07);
}
.hero__bg { position: absolute; inset: 0; z-index: -2; }
.hero__bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(20, 23, 26, 0.14) 0%, rgba(20, 23, 26, 0) 12%);
}
.hero__bg img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: 0; transition: opacity 1.1s ease;
}
.hero__bg img.is-on {
  opacity: 1; animation: kenburns 14s ease-out both;
}
/* 无照片时的占位背景：把线稿当作右侧水印，不显示角标 */
.hero__bg > .ph, .pagehero__bg > .ph {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0; transition: opacity 1s ease;
}
.hero__bg > .ph.is-on, .pagehero__bg > .ph.is-on { opacity: 1; }
.pagehero__bg > .ph::before { background-size: 64px 64px; }
.hero__bg > .ph .ph__corner, .pagehero__bg > .ph .ph__corner { display: none; }
.hero__bg > .ph .ph__art, .pagehero__bg > .ph .ph__art {
  place-items: center end; padding-right: 3%;
}
.hero__bg > .ph .ph__art svg, .pagehero__bg > .ph .ph__art svg {
  width: 38%; max-width: 480px; opacity: 0.17; stroke-width: 1.3;
}
/* 首页无文字层，占位线稿改为居中呈现 */
.hero__bg > .ph .ph__art { place-items: center; padding-right: 0; }
.hero__bg > .ph .ph__art svg { width: 44%; max-width: 560px; opacity: 0.2; }
@keyframes kenburns {
  from { transform: scale(1.02); }
  to { transform: scale(1.1); }
}

.hero__inner {
  position: relative; padding: clamp(56px, 8vw, 118px) var(--gutter) clamp(52px, 7vw, 100px);
  min-height: min(74vh, 700px); display: flex; flex-direction: column;
  justify-content: center;
}
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; font-weight: 700; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--orange); margin-bottom: 22px;
}
.hero__eyebrow::before { content: ""; width: 30px; height: 2px; background: var(--orange); }
.hero__title {
  color: #fff; max-width: 17ch;
  font-size: clamp(2.3rem, 5.4vw, 4.1rem); line-height: 1.08;
  letter-spacing: -0.02em;
}
.hero__title em {
  font-style: normal; color: var(--orange); position: relative;
}
html[lang="zh-CN"] .hero__title { max-width: 12em; letter-spacing: 0; line-height: 1.16; }
html[lang="zh-CN"] .pagehero__title { letter-spacing: 0; }
html[lang="zh-CN"] .h1, html[lang="zh-CN"] .h2 { letter-spacing: 0; }
.hero__text {
  margin-top: 22px; max-width: 56ch; font-size: clamp(1rem, 1.25vw, 1.1rem);
  color: rgba(255, 255, 255, 0.78); line-height: 1.8;
}
.hero__cta { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 14px; }

/* 首页首屏：照片之上叠文字层（左侧压暗保证可读，右侧透出照片） */
.hero__overlay { position: absolute; inset: 0; z-index: 2; display: flex; align-items: flex-start; padding-top: clamp(46px, 9vh, 104px); pointer-events: none; }
.hero__overlay::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(96deg, rgba(14, 17, 20, 0.9) 0%, rgba(14, 17, 20, 0.68) 36%,
              rgba(14, 17, 20, 0.24) 64%, rgba(14, 17, 20, 0.02) 100%);
}
.hero__overlay .wrap { position: relative; width: 100%; pointer-events: auto; }
.hero__overlay .hero__title { max-width: 26ch; }

.hero__stats {
  margin-top: 44px; display: flex; flex-wrap: wrap; gap: clamp(24px, 4vw, 60px);
  padding-top: 26px; border-top: 1px solid rgba(255, 255, 255, 0.14);
  max-width: 760px;
}
.hero__stat b {
  display: block; font-size: clamp(1.5rem, 2.4vw, 2rem);
  color: #fff; line-height: 1.1; letter-spacing: -0.02em;
}
.hero__stat span {
  font-size: 12.5px; letter-spacing: 0.06em; color: var(--gray-400);
  text-transform: uppercase;
}

.hero__bar {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 3;
  pointer-events: none;
}
.hero__dots {
  pointer-events: auto; display: inline-flex; align-items: center; gap: 10px;
  padding: 9px 14px; margin-bottom: 16px; border-radius: 999px;
  background: rgba(20, 23, 26, 0.34);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.hero__dots button {
  width: 34px; height: 3px; border: 0; padding: 0; border-radius: 2px;
  background: rgba(255, 255, 255, 0.45); position: relative; overflow: hidden;
  transition: background 0.2s;
}
.hero__dots button.is-on { background: rgba(255, 255, 255, 0.45); }
.hero__dots button.is-on::after {
  content: ""; position: absolute; inset: 0; background: var(--orange);
  transform-origin: left; animation: dotfill 6s linear forwards;
}
@keyframes dotfill { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* 左右翻看按钮 */
.hero__nav {
  position: absolute; top: 50%; left: 0; right: 0; z-index: 4;
  transform: translateY(-50%);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 22px; pointer-events: none;
}
.hero__navbtn {
  pointer-events: auto; cursor: pointer;
  width: 54px; height: 54px; border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.55);
  background: rgba(20, 23, 26, 0.42);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  box-shadow: 0 6px 18px rgba(20, 23, 26, 0.18);
  color: #fff;
  transition: background 0.22s var(--ease), border-color 0.22s, transform 0.22s var(--ease);
}
.hero__navbtn svg {
  width: 22px; height: 22px; fill: none; stroke: currentColor;
  stroke-width: 2.3; stroke-linecap: round; stroke-linejoin: round;
}
.hero__navbtn:hover {
  background: var(--orange); border-color: var(--orange); color: #fff;
  transform: scale(1.06);
}
.hero__navbtn:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; }
.hero__navbtn:active { transform: scale(0.96); }

/* inner page hero */
.pagehero {
  position: relative; overflow: hidden; background: var(--gray-950); color: #fff;
  isolation: isolate;
}
.pagehero__bg { position: absolute; inset: 0; z-index: -2; }
/* 遮罩减淡：左侧保留深色保证白色标题可读，右侧大幅透出图片 */
.pagehero__bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(20, 23, 26, 0.8) 0%, rgba(20, 23, 26, 0.42) 48%, rgba(20, 23, 26, 0.1) 100%);
}
.pagehero__bg img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: 0; transition: opacity 1s ease;
}
.pagehero__bg img.is-on { opacity: 1; }  /* 子页横幅静态显示，不缓慢放大，图片更清晰 */
.pagehero__inner {
  position: relative; padding: 76px var(--gutter) 72px;
  display: grid; grid-template-columns: 1.35fr 0.65fr; gap: 40px; align-items: end;
}
.pagehero__title { color: #fff; font-size: clamp(1.9rem, 3.6vw, 2.9rem); line-height: 1.14; }
/* 横幅图更亮后补一点文字阴影，保证任何图片上都读得清（不改文字内容） */
.pagehero__title { text-shadow: 0 2px 14px rgba(10, 12, 14, 0.4); }
.pagehero__text { text-shadow: 0 1px 10px rgba(10, 12, 14, 0.45); }
.pagehero .crumb { color: rgba(255, 255, 255, 0.74); text-shadow: 0 1px 8px rgba(10, 12, 14, 0.5); }
.pagehero__text {
  margin-top: 16px; max-width: 62ch; color: rgba(255, 255, 255, 0.76);
  font-size: 1rem; line-height: 1.8;
}
.crumb { font-size: 12.5px; color: var(--gray-400); display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.crumb a:hover { color: var(--orange); }
.crumb span.sep { opacity: 0.45; }
.crumb li { display: inline-flex; gap: 8px; align-items: center; }

/* ---------- 6. Components ---------- */
.btn {
  --btn-bg: var(--orange);
  --btn-fg: #fff;
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  min-height: 50px; padding: 14px 28px;
  background: var(--btn-bg); color: var(--btn-fg);
  border: 1px solid transparent; border-radius: var(--radius);
  font-size: 14.5px; font-weight: 700; letter-spacing: 0.01em;
  transition: transform 0.18s var(--ease), background 0.2s, box-shadow 0.2s, color 0.2s;
  text-align: center;
}
.btn:hover { background: var(--orange-600); transform: translateY(-1px); box-shadow: 0 8px 22px rgba(255, 106, 19, 0.3); }
.btn svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; }
.btn--ghost {
  --btn-bg: transparent; --btn-fg: #fff;
  border-color: rgba(255, 255, 255, 0.34);
}
.btn--ghost:hover { background: rgba(255, 255, 255, 0.1); border-color: #fff; box-shadow: none; }
.btn--dark { --btn-bg: var(--gray-900); --btn-fg: #fff; }
.btn--dark:hover { background: var(--ink); box-shadow: 0 8px 22px rgba(27, 30, 33, 0.22); }
.btn--line {
  --btn-bg: transparent; --btn-fg: var(--ink);
  border-color: var(--gray-300);
}
.btn--line:hover { background: var(--gray-50); border-color: var(--gray-700); box-shadow: none; color: var(--ink); }
.btn--sm { min-height: 40px; padding: 9px 18px; font-size: 13px; }
.btn--block { width: 100%; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 700; color: var(--ink);
  transition: gap 0.2s, color 0.2s;
}
.link-arrow svg { width: 15px; height: 15px; fill: none; stroke: var(--orange); stroke-width: 2; }
.link-arrow:hover { color: var(--orange); gap: 12px; }

.tag {
  display: inline-block; padding: 4px 10px; border-radius: 3px;
  background: var(--orange-100); color: var(--orange-600);
  font-size: 11.5px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
}
.tag--gray { background: var(--gray-100); color: var(--gray-600); }

/* placeholder media */
.ph {
  position: relative; overflow: hidden; background: #24292d;
  display: block;
}
.ph::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
}
.ph::after {
  content: ""; position: absolute; right: -18%; bottom: -34%;
  width: 74%; padding-bottom: 74%; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 106, 19, 0.26), rgba(255, 106, 19, 0) 68%);
}
.ph__art {
  position: absolute; inset: 0; display: grid; place-items: center; z-index: 1;
}
.ph__art svg {
  width: 46%; max-width: 210px; height: auto;
  stroke: rgba(255, 255, 255, 0.5); fill: none;
  stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round;
  filter: drop-shadow(0 2px 10px rgba(0, 0, 0, 0.35));
}
.ph__corner {
  position: absolute; left: 0; top: 0; width: 46px; height: 46px;
  border-left: 2px solid var(--orange); border-top: 2px solid var(--orange);
  opacity: 0.85; z-index: 2;
}
.ph--light { background: #e9edf0; }
.ph--light::before {
  background-image:
    linear-gradient(rgba(27, 30, 33, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 30, 33, 0.06) 1px, transparent 1px);
}
.ph--light .ph__art svg { stroke: rgba(27, 30, 33, 0.32); }

/* product / case card */
.card {
  position: relative; background: #fff; border: 1px solid var(--gray-200);
  border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease), border-color 0.28s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--gray-300); }
.card__media {
  position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: #fff;
}
.card__media img,
.card__media .ph {
  width: 100%; height: 100%; object-fit: contain;
  transition: transform 0.5s var(--ease);
}
.card:hover .card__media img { transform: none; }
.card__badge {
  position: absolute; left: 14px; top: 14px; z-index: 3;
  background: rgba(27, 30, 33, 0.82); color: #fff;
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; padding: 5px 10px; border-radius: 2px;
  backdrop-filter: blur(4px);
}
.card__body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.card__title { font-size: 1.08rem; line-height: 1.35; margin-bottom: 9px; }
.card__title a:hover { color: var(--orange); }
.card__desc {
  font-size: 14px; color: var(--gray-600); line-height: 1.68;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden; margin-bottom: 18px;
}
.card__foot {
  margin-top: auto; padding-top: 16px; border-top: 1px solid var(--gray-100);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.card__meta { font-size: 12.5px; color: var(--gray-500); letter-spacing: 0.02em; }

/* filters */
.filters {
  display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 40px;
  padding-bottom: 26px; border-bottom: 1px solid var(--gray-200);
}
.chip {
  border: 1px solid var(--gray-200); background: #fff; color: var(--gray-600);
  padding: 9px 18px; border-radius: 40px; font-size: 13.5px; font-weight: 600;
  transition: all 0.2s var(--ease); white-space: nowrap;
}
.chip:hover { border-color: var(--gray-400); color: var(--ink); }
.chip.is-on { background: var(--gray-900); border-color: var(--gray-900); color: #fff; }
.chip .cnt { opacity: 0.55; font-size: 11.5px; margin-left: 5px; }

.empty {
  padding: 60px 24px; text-align: center; color: var(--gray-500);
  border: 1px dashed var(--gray-300); border-radius: var(--radius);
  background: var(--gray-50); font-size: 14.5px;
}

/* advantage */
.adv { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--gray-200); border-radius: var(--radius); overflow: hidden; background: #fff; }
.adv__item {
  padding: 44px 38px 42px; position: relative;
  border-right: 1px solid var(--gray-200);
  transition: background 0.3s;
}
.adv__item:last-child { border-right: 0; }
.adv__item:hover { background: var(--gray-50); }
.adv__item::before {
  content: ""; position: absolute; left: 0; top: 0; height: 3px; width: 0;
  background: var(--orange); transition: width 0.35s var(--ease);
}
.adv__item:hover::before { width: 100%; }
.adv__num {
  font-size: 12px; font-weight: 800; letter-spacing: 0.16em; color: var(--gray-300);
  margin-bottom: 22px; display: block;
}
.adv__icon {
  width: 52px; height: 52px; border-radius: 6px; margin-bottom: 22px;
  background: var(--orange-100); display: grid; place-items: center;
}
.adv__icon svg { width: 26px; height: 26px; fill: none; stroke: var(--orange); stroke-width: 1.7; }
.adv__title { font-size: 1.16rem; margin-bottom: 10px; }
.adv__desc { font-size: 14.5px; color: var(--gray-600); line-height: 1.72; }

/* spec list */
.spec-list { display: grid; gap: 0; border-top: 1px solid var(--gray-200); }
.spec-list li {
  display: grid; grid-template-columns: 42% 58%; gap: 16px;
  padding: 13px 0; border-bottom: 1px solid var(--gray-200); font-size: 14.5px;
}
.spec-list li b { color: var(--ink); font-weight: 600; }
.spec-list li span { color: var(--gray-600); line-height: 1.65; }
.spec-list li.is-wide { grid-template-columns: 1fr; }

.check-list { display: grid; gap: 13px; }
.check-list li {
  position: relative; padding-left: 30px; font-size: 14.6px;
  color: var(--gray-600); line-height: 1.7;
}
.check-list li::before {
  content: ""; position: absolute; left: 0; top: 4px; width: 18px; height: 18px;
  border-radius: 50%; background: var(--orange-100);
}
.check-list li::after {
  content: ""; position: absolute; left: 6px; top: 9px; width: 6px; height: 3px;
  border-left: 1.8px solid var(--orange); border-bottom: 1.8px solid var(--orange);
  transform: rotate(-45deg);
}
.sec--dark .check-list li { color: var(--gray-400); }

/* service rows */
.svc-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  border: 1px solid var(--gray-200); border-radius: var(--radius);
  overflow: hidden; background: #fff; margin-bottom: 28px;
}
.svc-row__media { position: relative; min-height: 360px; background: #24292d; }
.svc-row__media img, .svc-row__media .ph { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.svc-row__body { padding: clamp(30px, 4vw, 56px); display: flex; flex-direction: column; justify-content: center; }
.svc-row:nth-child(even) .svc-row__media { order: 2; }
.svc-row__no {
  font-size: 12px; font-weight: 800; letter-spacing: 0.16em;
  color: var(--orange); margin-bottom: 14px;
}
.svc-row__body .card__desc { -webkit-line-clamp: unset; display: block; margin-bottom: 18px; }

/* timeline */
.tl { position: relative; display: grid; gap: 0; }
.tl__item {
  display: grid; grid-template-columns: 130px 1fr; gap: 32px;
  padding: 26px 0; border-top: 1px solid var(--gray-200); align-items: start;
}
.tl__item:last-child { border-bottom: 1px solid var(--gray-200); }
.tl__year {
  font-size: 1.35rem; font-weight: 800; color: var(--ink);
  letter-spacing: -0.01em; position: relative; padding-left: 20px;
}
.tl__year::before {
  content: ""; position: absolute; left: 0; top: 8px; width: 8px; height: 8px;
  border-radius: 50%; background: var(--orange);
  box-shadow: 0 0 0 4px var(--orange-100);
}
.tl__text { font-size: 14.8px; color: var(--gray-600); line-height: 1.8; }
.tl__text strong { color: var(--ink); display: block; margin-bottom: 4px; font-size: 15.4px; }

/* gallery */
.gal { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.gal__item {
  position: relative; border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 4 / 3; background: #24292d; display: block;
}
.gal__item:first-child { grid-column: span 2; grid-row: span 2; aspect-ratio: auto; }
.gal__item img, .gal__item .ph { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.gal__item:hover img, .gal__item:hover .ph { transform: scale(1.04); }

/* certifications */
.certs { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.certs__item {
  border: 1px solid var(--gray-200); border-radius: var(--radius); background: #fff;
  padding: 26px 14px; text-align: center; transition: all 0.25s;
}
.certs__item:hover { border-color: var(--orange); box-shadow: var(--shadow-sm); }
.certs__item img { height: 46px; width: auto; margin: 0 auto 12px; opacity: 0.85; }
.certs__item b { display: block; font-size: 13px; color: var(--ink); letter-spacing: 0.02em; }
.certs__item span { font-size: 11.5px; color: var(--gray-500); }
.cert-ph {
  width: 46px; height: 46px; margin: 0 auto 12px; border-radius: 50%;
  border: 2px solid var(--gray-300); display: grid; place-items: center;
  font-size: 11px; font-weight: 800; color: var(--gray-500);
}

/* news */
.news-item {
  display: grid; grid-template-columns: 300px 1fr; gap: 32px;
  padding: 30px 0; border-top: 1px solid var(--gray-200); align-items: center;
}
.news-item:last-child { border-bottom: 1px solid var(--gray-200); }
.news-item__media {
  position: relative; aspect-ratio: 16 / 10; border-radius: var(--radius);
  overflow: hidden; background: #24292d;
}
.news-item__media img, .news-item__media .ph { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.news-item:hover .news-item__media img { transform: scale(1.04); }
.news-item__meta {
  display: flex; align-items: center; gap: 14px; margin-bottom: 10px;
  font-size: 12.5px; color: var(--gray-500);
}
.news-item__title { font-size: 1.22rem; line-height: 1.4; margin-bottom: 10px; }
.news-item__title a:hover { color: var(--orange); }
.news-item__ex { font-size: 14.5px; color: var(--gray-600); line-height: 1.72; }

/* contact */
.contact-grid { display: grid; grid-template-columns: 1.12fr 0.88fr; gap: 40px; align-items: start; }
.form-card {
  background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
  padding: clamp(24px, 3vw, 40px);
}
.info-panel {
  background: var(--gray-950); color: var(--gray-300); border-radius: var(--radius);
  padding: clamp(26px, 3vw, 40px); position: relative; overflow: hidden;
}
.info-panel::before {
  content: ""; position: absolute; right: -28%; top: -26%; width: 72%; padding-bottom: 72%;
  border-radius: 50%; background: radial-gradient(circle, rgba(255, 106, 19, 0.18), transparent 68%);
}
.info-panel > * { position: relative; }
.info-panel h3 { color: #fff; font-size: 1.15rem; margin-bottom: 6px; }
.info-panel .info-list { margin-top: 26px; }
.info-list { display: grid; gap: 22px; }
.info-item { display: flex; gap: 16px; align-items: flex-start; }
.info-item__icon {
  width: 42px; height: 42px; flex: 0 0 auto; border-radius: 50%;
  background: rgba(255, 255, 255, 0.07); display: grid; place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.info-item__icon svg { width: 18px; height: 18px; fill: none; stroke: var(--orange); stroke-width: 1.8; }
.info-item__label {
  font-size: 11.5px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--gray-500); margin-bottom: 4px;
}
.info-item__val { font-size: 15px; color: #fff; line-height: 1.65; word-break: break-word; }
.info-item__val a:hover { color: var(--orange); }
.info-item__val small { display: block; color: var(--gray-400); font-size: 13px; margin-top: 2px; }

.map-wrap {
  border: 1px solid var(--gray-200); border-radius: var(--radius);
  overflow: hidden; background: var(--gray-100); position: relative;
  aspect-ratio: 16 / 9;
}
.map-wrap iframe { width: 100%; height: 100%; border: 0; display: block; }
.map-ph {
  position: absolute; inset: 0; display: grid; place-items: center; text-align: center;
  background:
    linear-gradient(rgba(27, 30, 33, 0.045) 1px, transparent 1px) 0 0 / 34px 34px,
    linear-gradient(90deg, rgba(27, 30, 33, 0.045) 1px, transparent 1px) 0 0 / 34px 34px,
    var(--gray-100);
  color: var(--gray-500); font-size: 13.5px; padding: 24px; gap: 8px;
}
.map-ph svg { width: 34px; height: 34px; stroke: var(--orange); fill: none; stroke-width: 1.7; margin: 0 auto 10px; }

/* 高德静态地图：整块可点，底部带公司名与说明 */
/* 高德地图（Leaflet 瓦片）：真正的高德底图，无需 Key */
.map-wrap .leaflet-container,
.map-wrap.leaflet-container { width: 100%; height: 100%; background: #eef1f4; font: inherit; }
.leaflet-container a.leaflet-popup-close-button { color: #8a9099; }
.leaflet-popup-content { margin: 12px 16px; font-size: 13.5px; line-height: 1.55; color: var(--gray-800); }
.map-pin { background: none; border: 0; }
.map-pin__dot {
  display: block; width: 16px; height: 16px; border-radius: 50%;
  background: var(--orange); border: 3px solid #fff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .35);
}
.map-pin__dot::after {
  content: ""; position: absolute; inset: -9px; border-radius: 50%;
  border: 2px solid rgba(255, 106, 19, .35); animation: mapPulse 2.4s ease-out infinite;
}
@keyframes mapPulse {
  0% { transform: scale(.7); opacity: .9; }
  70% { transform: scale(1.5); opacity: 0; }
  100% { transform: scale(1.5); opacity: 0; }
}
.map-navbtn {
  position: absolute; right: 12px; top: 12px; z-index: 500;
  display: inline-flex; align-items: center; gap: 6px;
  background: #fff; color: var(--gray-900); font-size: 12.5px; font-weight: 700;
  padding: 9px 14px; border-radius: 40px; text-decoration: none;
  box-shadow: 0 4px 16px rgba(16, 20, 24, .16);
  white-space: nowrap;
}
.map-navbtn:hover { color: var(--orange); }
@media (max-width: 640px) {
  .map-navbtn { font-size: 11.5px; padding: 7px 11px; }
  .map-navbtn svg { display: none; }
}
.map-credit {
  position: absolute; left: 10px; bottom: 10px; z-index: 400;
  font-size: 11px; color: rgba(60, 66, 72, .62); background: rgba(255, 255, 255, .78);
  padding: 2px 7px; border-radius: 4px; pointer-events: none;
}

.map-shot { position: absolute; inset: 0; display: block; }
.map-shot img { width: 100%; height: 100%; object-fit: cover; display: block; }
.map-shot__cap {
  position: absolute; left: 0; right: 0; bottom: 0;
  display: flex; flex-direction: column; gap: 3px;
  padding: 16px 18px 14px; color: #fff; font-size: 13.5px; font-weight: 700; line-height: 1.3;
  background: linear-gradient(to top, rgba(12, 14, 16, .68), rgba(12, 14, 16, 0));
}
.map-shot__cap em { font-style: normal; font-weight: 600; font-size: 12px; color: rgba(255, 255, 255, .88); }
.map-shot__cap svg { width: 12px; height: 12px; vertical-align: -1px; }

.reply-badge {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--orange-100); color: var(--orange-600);
  border: 1px solid var(--orange-200);
  padding: 8px 16px; border-radius: 40px; font-size: 13px; font-weight: 700;
}
.reply-badge::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--orange);
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 106, 19, 0.45); }
  50% { box-shadow: 0 0 0 6px rgba(255, 106, 19, 0); }
}

/* cta band */
.cta-band {
  background: var(--gray-950); color: #fff; position: relative; overflow: hidden;
}
.cta-band::before {
  content: ""; position: absolute; right: -8%; top: -60%; width: 46%; padding-bottom: 46%;
  border-radius: 50%; background: radial-gradient(circle, rgba(255, 106, 19, 0.22), transparent 65%);
}
.cta-band__inner {
  position: relative; padding: 72px var(--gutter); display: grid;
  grid-template-columns: 1.4fr 0.6fr; gap: 40px; align-items: center;
}
.cta-band h2 { color: #fff; }
.cta-band .lead { color: var(--gray-400); }
.cta-band__actions { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.cta-band__actions .btn { min-width: 230px; }

/* 案例详情：难题 / 方案 / 结果 三栏，各带一张配图（完整显示不裁切） */
.case-cols { align-items: start; }
.case-col__pic {
  aspect-ratio: 4 / 3; margin: 14px 0 18px;
  border: 1px solid var(--gray-200); border-radius: var(--radius);
  overflow: hidden; background: #fff;
}
.case-col__pic img, .case-col__pic .ph {
  width: 100%; height: 100%; object-fit: contain; display: block;
}

/* ---------- 7. Forms ---------- */
.form { display: grid; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 7px; }
.field > label {
  font-size: 13px; font-weight: 700; color: var(--ink); letter-spacing: 0.01em;
}
.field .req { color: var(--orange); }
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field input[type="url"],
.field input[type="number"],
.field input[type="password"],
.field select,
.field textarea {
  width: 100%; padding: 13px 15px; font-family: inherit; font-size: 14.5px;
  color: var(--ink); background: #fff;
  border: 1px solid var(--gray-200); border-radius: var(--radius);
  transition: border-color 0.2s, box-shadow 0.2s; appearance: none;
}
.field textarea { min-height: 132px; resize: vertical; line-height: 1.65; }
.field select {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235d656b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
  padding-right: 40px;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 106, 19, 0.13);
}
.field input::placeholder, .field textarea::placeholder { color: var(--gray-400); }
.field__hint { font-size: 12.5px; color: var(--gray-500); line-height: 1.6; }
.field--full { grid-column: 1 / -1; }

.upload {
  border: 1.5px dashed var(--gray-300); border-radius: var(--radius);
  padding: 22px; text-align: center; background: var(--gray-50);
  transition: border-color 0.2s, background 0.2s; cursor: pointer;
  display: grid; gap: 6px; justify-items: center;
}
.upload:hover, .upload.is-drag { border-color: var(--orange); background: var(--orange-100); }
.upload svg { width: 26px; height: 26px; fill: none; stroke: var(--orange); stroke-width: 1.7; }
.upload b { font-size: 13.5px; color: var(--ink); }
.upload span { font-size: 12px; color: var(--gray-500); }
.upload input[type="file"] { display: none; }
.upload__file { font-size: 12.5px; color: var(--orange-600); font-weight: 700; }

.check-inline { display: flex; gap: 10px; align-items: flex-start; font-size: 13px; color: var(--gray-600); line-height: 1.6; }
.check-inline input { margin-top: 4px; accent-color: var(--orange); width: 15px; height: 15px; flex: 0 0 auto; }
.check-inline a { color: var(--orange-600); text-decoration: underline; }

.form-note {
  font-size: 12.5px; color: var(--gray-500); line-height: 1.7;
  padding-top: 4px; border-top: 1px solid var(--gray-100); margin-top: 2px;
}
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; overflow: hidden; }

.alert {
  padding: 13px 16px; border-radius: var(--radius); font-size: 13.6px;
  border: 1px solid; line-height: 1.6;
}
.alert--ok { background: #edf9f1; border-color: #bfe8cd; color: #1c7a43; }
.alert--err { background: #fdf0ee; border-color: #f6cfc7; color: #b3351f; }
.alert--info { background: var(--gray-50); border-color: var(--gray-200); color: var(--gray-600); }

/* ---------- 8. Footer ---------- */
.footer { background: var(--gray-950); color: var(--gray-400); font-size: 14px; }
.footer__top { padding: 68px 0 52px; }
.footer__grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 44px;
}
.footer h4 {
  color: #fff; font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase;
  margin-bottom: 20px; font-weight: 700;
}
.footer__brand .logo__name { color: #fff; }
.footer__brand .logo__sub { color: var(--gray-500); }
.footer__desc { margin-top: 18px; line-height: 1.8; color: var(--gray-400); font-size: 13.6px; max-width: 42ch; }
.footer__links { display: grid; gap: 11px; }
.footer__links a { color: var(--gray-400); font-size: 13.8px; transition: color 0.2s, padding-left 0.2s; }
.footer__links a:hover { color: var(--orange); padding-left: 4px; }
.footer__contact { display: grid; gap: 12px; font-size: 13.6px; }
.footer__contact div { display: flex; gap: 10px; align-items: flex-start; line-height: 1.7; }
.footer__contact svg { width: 15px; height: 15px; flex: 0 0 auto; margin-top: 4px; fill: none; stroke: var(--orange); stroke-width: 1.8; }
.footer__contact a:hover { color: var(--orange); }

.footer__news { display: flex; gap: 0; margin-top: 18px; }
.footer__news input {
  flex: 1; min-width: 0; padding: 12px 14px; border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.05); color: #fff; border-radius: var(--radius) 0 0 var(--radius);
  font-size: 13.5px; font-family: inherit;
}
.footer__news input::placeholder { color: var(--gray-500); }
.footer__news input:focus { outline: none; border-color: var(--orange); }
.footer__news button {
  border: 0; background: var(--orange); color: #fff; padding: 0 20px;
  border-radius: 0 var(--radius) var(--radius) 0; font-weight: 700; font-size: 13.5px;
}
.footer__news button:hover { background: var(--orange-600); }

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.09); padding: 22px 0;
  font-size: 12.8px; color: var(--gray-500);
}
.footer__bottom > .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 18px; flex-wrap: wrap;
}
.footer__bottom nav { display: flex; gap: 20px; flex-wrap: wrap; }
.footer__bottom a:hover { color: var(--orange); }

/* ---------- 9. Overlays ---------- */
.modal {
  position: fixed; inset: 0; z-index: 200; display: none;
  align-items: center; justify-content: center; padding: 24px;
}
.modal.is-open { display: flex; }
.modal__scrim { position: absolute; inset: 0; background: rgba(18, 21, 24, 0.62); backdrop-filter: blur(3px); }
.modal__panel {
  position: relative; background: #fff; border-radius: var(--radius-lg);
  width: 100%; max-width: 720px; max-height: 92vh; overflow-y: auto;
  box-shadow: var(--shadow-lg); animation: modalIn 0.28s var(--ease);
}
@keyframes modalIn { from { opacity: 0; transform: translateY(18px) scale(0.99); } to { opacity: 1; transform: none; } }
.modal__head {
  padding: 28px 32px 22px; border-bottom: 1px solid var(--gray-200);
  display: flex; align-items: flex-start; justify-content: space-between; gap: 20px;
  position: sticky; top: 0; background: #fff; z-index: 2; border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.modal__head h3 { font-size: 1.32rem; }
.modal__head p { font-size: 13.2px; color: var(--gray-500); margin-top: 5px; }
.modal__body { padding: 26px 32px 32px; }
.modal .form { gap: 14px; }
.modal .form textarea { min-height: 96px; }
.modal .upload { padding: 16px; }
.modal__close {
  width: 34px; height: 34px; border: 1px solid var(--gray-200); background: #fff;
  border-radius: 50%; display: grid; place-items: center; flex: 0 0 auto;
  color: var(--gray-600); transition: all 0.2s;
}
.modal__close:hover { border-color: var(--ink); color: var(--ink); transform: rotate(90deg); }
.modal__close svg { width: 15px; height: 15px; stroke: currentColor; stroke-width: 2; fill: none; }

/* chat */
.chat-fab {
  position: fixed; right: 22px; bottom: 22px; z-index: 150;
  width: 56px; height: 56px; border-radius: 50%; border: 0;
  background: var(--orange); color: #fff; display: grid; place-items: center;
  box-shadow: 0 10px 28px rgba(255, 106, 19, 0.4);
  transition: transform 0.2s var(--ease), box-shadow 0.2s;
}
.chat-fab:hover { transform: translateY(-2px) scale(1.03); box-shadow: 0 14px 34px rgba(255, 106, 19, 0.46); }
.chat-fab svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.9; }
.chat-fab__dot {
  position: absolute; right: 3px; top: 3px; width: 12px; height: 12px;
  background: #35c46b; border: 2px solid #fff; border-radius: 50%;
}
.chat-panel {
  position: fixed; right: 22px; bottom: 90px; z-index: 151;
  width: min(360px, calc(100vw - 44px));
  background: #fff; border-radius: 10px; box-shadow: var(--shadow-lg);
  overflow: hidden; display: none; flex-direction: column;
  border: 1px solid var(--gray-200);
}
.chat-panel.is-open { display: flex; animation: modalIn 0.25s var(--ease); }
.chat-panel__head {
  background: var(--gray-950); color: #fff; padding: 16px 18px;
  display: flex; align-items: center; gap: 12px;
}
.chat-panel__head b { font-size: 14px; display: block; }
.chat-panel__head span { font-size: 11.5px; color: #7fe0a3; display: flex; align-items: center; gap: 5px; }
.chat-panel__head span::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: #35c46b; }
.chat-panel__head button { margin-left: auto; background: none; border: 0; color: var(--gray-400); font-size: 20px; line-height: 1; }
.chat-panel__body { padding: 16px; display: grid; gap: 12px; max-height: 300px; overflow-y: auto; background: var(--gray-50); }
.chat-msg {
  background: #fff; border: 1px solid var(--gray-200); border-radius: 3px 10px 10px 10px;
  padding: 10px 13px; font-size: 13.2px; color: var(--gray-700); line-height: 1.65;
  max-width: 92%;
}
.chat-msg--me {
  margin-left: auto; background: var(--gray-900); color: #fff; border-color: var(--gray-900);
  border-radius: 10px 3px 10px 10px;
}
.chat-panel__foot { padding: 12px; border-top: 1px solid var(--gray-200); display: flex; gap: 8px; }
.chat-panel__foot input {
  flex: 1; min-width: 0; border: 1px solid var(--gray-200); border-radius: 40px;
  padding: 10px 15px; font-size: 13px; font-family: inherit;
}
.chat-panel__foot input:focus { outline: none; border-color: var(--orange); }
.chat-panel__foot button {
  border: 0; background: var(--orange); color: #fff; width: 40px; height: 40px;
  border-radius: 50%; display: grid; place-items: center; flex: 0 0 auto;
}
.chat-panel__foot button svg { width: 17px; height: 17px; stroke: currentColor; fill: none; stroke-width: 2; }

/* cookie */
.cookie {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 160;
  background: rgba(27, 30, 33, 0.97); color: var(--gray-300);
  backdrop-filter: blur(8px); border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 18px 0; transform: translateY(110%); transition: transform 0.4s var(--ease);
  box-shadow: 0 -8px 30px rgba(0, 0, 0, 0.18);
}
.cookie.is-on { transform: none; }
.cookie__inner {
  display: flex; align-items: center; gap: 26px; justify-content: space-between; flex-wrap: wrap;
}
.cookie__text { font-size: 13.2px; line-height: 1.7; max-width: 70ch; }
.cookie__text a { color: var(--orange); text-decoration: underline; }
.cookie__actions { display: flex; gap: 10px; flex-wrap: wrap; }
.cookie__actions .btn { min-height: 40px; padding: 9px 20px; font-size: 13px; }

.toast {
  position: fixed; left: 50%; bottom: 90px; transform: translate(-50%, 20px);
  background: var(--ink); color: #fff; padding: 13px 22px; border-radius: var(--radius);
  font-size: 13.6px; z-index: 300; opacity: 0; pointer-events: none;
  transition: all 0.3s var(--ease); box-shadow: var(--shadow-lg); max-width: calc(100vw - 40px);
}
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }

/* prose (news / privacy) */
.prose { max-width: 800px; }
.prose h2 { font-size: 1.45rem; margin: 42px 0 14px; }
.prose h3 { font-size: 1.15rem; margin: 30px 0 10px; }
.prose p { margin-bottom: 16px; font-size: 15.4px; line-height: 1.85; color: var(--gray-600); }
.prose ul { margin: 0 0 18px; padding-left: 4px; display: grid; gap: 9px; }
.prose ul li { position: relative; padding-left: 22px; font-size: 15.2px; line-height: 1.8; color: var(--gray-600); }
.prose ul li::before {
  content: ""; position: absolute; left: 4px; top: 11px; width: 6px; height: 6px;
  border-radius: 50%; background: var(--orange);
}
.prose a { color: var(--orange-600); text-decoration: underline; }
.prose blockquote {
  margin: 24px 0; padding: 18px 24px; border-left: 3px solid var(--orange);
  background: var(--gray-50); color: var(--gray-700); font-size: 15.2px;
}

/* detail layout */
.detail { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: start; }
.detail__media { position: relative; border-radius: var(--radius); overflow: hidden; background: #fff; aspect-ratio: 4 / 3; }
/* 产品图统一完整显示，不做裁切（产品图多为方图/竖图，cover 会切掉机器上下部分） */
.detail__media img, .detail__media .ph { width: 100%; height: 100%; object-fit: contain; }
.thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 12px; }
.thumbs button {
  border: 1px solid var(--gray-200); border-radius: 3px; padding: 0; overflow: hidden;
  background: #fff; aspect-ratio: 4 / 3;
}
.thumbs button img { width: 100%; height: 100%; object-fit: contain; }
.thumbs button.is-on { border-color: var(--orange); }
.detail__meta { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; }
.detail__title { font-size: clamp(1.6rem, 2.8vw, 2.2rem); line-height: 1.2; }
.detail__lead { margin-top: 14px; font-size: 15.5px; color: var(--gray-600); line-height: 1.8; }
.detail__actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.detail__quick { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--gray-200); display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.detail__quick div b { display: block; font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gray-500); margin-bottom: 4px; }
.detail__quick div span { font-size: 14px; color: var(--ink); }

/* fallback state */
.missing { padding: 90px 0; text-align: center; }
.missing h2 { margin-bottom: 12px; }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- 10. Responsive ---------- */
@media (max-width: 1120px) {
  .nav a { padding: 0 14px; font-size: 18px; }
  .nav a::after { left: 14px; right: 14px; }
  .grid--4 { grid-template-columns: repeat(3, 1fr); }
  .footer__grid { grid-template-columns: 1.4fr 1fr 1.3fr; row-gap: 40px; }
  .certs { grid-template-columns: repeat(4, 1fr); }
}

/* 小笔记本 / 平板横屏：导航收进抽屉，只保留吸顶品牌条 */
@media (max-width: 1100px) {
  .header { display: none; }
  .nav { display: none; }
  .burger { display: block; }
  .masthead { position: sticky; top: 0; z-index: 90; }
  .masthead__inner { min-height: 84px; }
  .masthead { border-bottom: 3px solid var(--ink); }
  .masthead__aside { gap: 16px; }
  .masthead .logo__img { height: 44px; }
  .masthead .logo__name { font-size: 19px; }
  .masthead .logo__sub { display: none; }
  .hotline__num { font-size: 19px; }
  html { scroll-padding-top: 100px; }
}

@media (max-width: 980px) {
  .masthead__inner { min-height: 76px; }
  .masthead .logo__img { height: 40px; }
  .masthead .logo__name { font-size: 17px; }
  .hotline__ico { width: 40px; height: 40px; }
  .hotline__ico svg { width: 18px; height: 18px; }
  .hotline__num { font-size: 17px; }
  /* 移动端页头空间紧张：公司名过长时省略 */
  .logo__name {
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    max-width: 44vw;
  }
  .sec { padding: 72px 0; }
  .hero { height: var(--hero-hm, clamp(400px, 108vw, 480px)); }
  .hero__inner { min-height: auto; }
  .hero__nav { display: none; }
  .hero__overlay { align-items: flex-end; padding-top: 0; padding-bottom: 42px; }
  .hero__overlay::before {
    background: linear-gradient(0deg, rgba(14, 17, 20, 0.94) 0%, rgba(14, 17, 20, 0.72) 46%,
                rgba(14, 17, 20, 0.32) 100%);
  }
  .hero__overlay .hero__eyebrow { display: none; }
  .hero__overlay .hero__title { font-size: clamp(1.5rem, 6.6vw, 2.1rem); max-width: none; }
  .hero__overlay .hero__text { display: none; }
  .hero__overlay .hero__cta { margin-top: 18px; gap: 10px; }
  .hero__overlay .hero__cta .btn { min-height: 40px; padding: 9px 16px; font-size: 13px; }
  .pagehero__inner { grid-template-columns: 1fr; gap: 22px; padding: 60px var(--gutter) 56px; }
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .adv { grid-template-columns: 1fr; }
  .adv__item { border-right: 0; border-bottom: 1px solid var(--gray-200); }
  .adv__item:last-child { border-bottom: 0; }
  .svc-row { grid-template-columns: 1fr; }
  .svc-row__media { min-height: 260px; position: relative; }
  .svc-row:nth-child(even) .svc-row__media { order: 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .detail { grid-template-columns: 1fr; gap: 32px; }
  .news-item { grid-template-columns: 220px 1fr; gap: 24px; }
  .cta-band__inner { grid-template-columns: 1fr; }
  .cta-band__actions { flex-direction: row; flex-wrap: wrap; }
  .cta-band__actions .btn { min-width: 0; flex: 0 1 auto; }
  .certs { grid-template-columns: repeat(3, 1fr); }
  .gal { grid-template-columns: repeat(2, 1fr); }
  .gal__item:first-child { grid-column: span 2; grid-row: auto; aspect-ratio: 16 / 9; }
}

@media (max-width: 720px) {
  body { font-size: 15.5px; }
  /* 手机端翻页按钮缩小，避免挡住画面 */
  .hero__nav { padding: 0 12px; }
  .hero__navbtn { width: 42px; height: 42px; background: rgba(20, 23, 26, 0.5); }
  .hero__navbtn svg { width: 18px; height: 18px; }
  .sec { padding: 56px 0; }
  .sec-head { margin-bottom: 36px; }
  .sec-head--row { flex-direction: column; align-items: flex-start; gap: 18px; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; gap: 20px; }
  .form-row { grid-template-columns: 1fr; }
  .hero__stats { gap: 22px 32px; }
  .hero__stat { min-width: calc(50% - 16px); }
  .news-item { grid-template-columns: 1fr; gap: 16px; }
  .news-item__media { aspect-ratio: 16 / 9; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer__brand { grid-column: 1 / -1; }
  .footer__top { padding: 52px 0 40px; }
  .tl__item { grid-template-columns: 84px 1fr; gap: 18px; }
  .tl__year { font-size: 1.1rem; }
  .certs { grid-template-columns: repeat(2, 1fr); }
  .detail__quick { grid-template-columns: 1fr; }
  .modal { padding: 0; align-items: flex-end; }
  .modal__panel { max-height: 94vh; border-radius: 12px 12px 0 0; }
  .modal__head { padding: 20px 20px 16px; border-radius: 12px 12px 0 0; }
  .modal__body { padding: 20px; }
  .cookie__inner { gap: 14px; }
  .cookie { padding: 14px 0; }
  .chat-fab { right: 14px; bottom: 14px; width: 50px; height: 50px; }
  .chat-panel { right: 14px; bottom: 78px; }
  .masthead__inner { min-height: 70px; padding-top: 8px; padding-bottom: 8px; }
  .masthead .logo__img { height: 38px; }
  .hotline { gap: 10px; }
  .hotline__label { display: none; }
  .hotline__num { font-size: 16px; margin-top: 0; }
  .spec-list li { grid-template-columns: 1fr; gap: 2px; }
  .prose h2 { font-size: 1.28rem; margin-top: 32px; }
}

@media (max-width: 480px) {
  :root { --gutter: 18px; }
  .masthead .logo__img { height: 34px; }
  .masthead .logo__name {
    font-size: 14px; letter-spacing: 0.05em; white-space: nowrap;
    overflow: hidden; text-overflow: ellipsis;
    max-width: calc(100vw - 214px);
  }
  /* 窄屏放不下副标题，优先保住服务员热线图标与菜单按钮 */
  .logo__sub { display: none; }
  .hotline__meta { display: none; }
  .hotline__ico { width: 38px; height: 38px; }
  .masthead__aside { gap: 10px; }
  .hero__eyebrow { letter-spacing: 0.12em; font-size: 10.5px; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; align-items: flex-start; gap: 12px; }
  .hero__cta .btn { width: 100%; }
  .card__body { padding: 18px 18px 20px; }
  .thumbs { grid-template-columns: repeat(4, 1fr); }
}

/* ---------- 产品详情：产品介绍 / 视频 / 工厂实力 ---------- */
.pd-block { margin-top: 76px; padding-top: 64px; border-top: 1px solid var(--gray-200); }
.pd-note { max-width: 330px; font-size: 13px; line-height: 1.7; color: var(--gray-500); text-align: right; }

.pd-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.pd-intro__pic {
  margin: 0; border-radius: var(--radius); overflow: hidden;
  background: #fff; border: 1px solid var(--gray-200);
}
.pd-intro__pic > img, .pd-intro__pic > .ph {
  width: 100%; aspect-ratio: 4 / 3; object-fit: contain; display: block;
}
.pd-intro__pic figcaption {
  padding: 10px 14px; font-size: 12px; color: var(--gray-500);
  background: #fff; border-top: 1px solid var(--gray-200);
}
.pd-intro__body p { font-size: 1.02rem; line-height: 1.9; color: var(--gray-600); }
.pd-intro__body p + p { margin-top: 18px; }
.pd-intro__facts {
  margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--gray-200);
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.pd-intro__facts > div { display: flex; flex-direction: column; gap: 5px; }
.pd-intro__facts b {
  font-size: 11px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--gray-500);
}
.pd-intro__facts span { font-size: 13.5px; color: var(--ink); }

/* ---------- 产品中心：分类行 + 型号卡片 ---------- */
.cat-groups { display: grid; gap: 64px; }
.cat-group__head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; margin-bottom: 22px;
}
.cat-group__title {
  position: relative; margin: 0; padding-left: 14px;
  font-size: 21px; font-weight: 700; letter-spacing: 0.01em; color: var(--ink);
}
.cat-group__title::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 4px; height: 20px; border-radius: 2px; background: var(--orange);
}
.cat-group__more {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; color: var(--orange); white-space: nowrap;
}
.cat-group__more:hover { color: #e25a08; }
.cat-group__ico {
  width: 22px; height: 22px; border-radius: 50%;
  border: 1.5px solid currentColor; display: grid; place-items: center;
  font-size: 12px; line-height: 1; padding-top: 1px;
  transition: background 0.2s ease, color 0.2s ease;
}
.cat-group__more:hover .cat-group__ico { background: var(--orange); color: #fff; }

/* 一行最多 5 个；型号少的分类卡片自动放大到 340px 封顶，避免右侧大片留白 */
.model-row { display: flex; flex-wrap: wrap; gap: 16px; }

.mcard {
  flex: 1 1 208px; max-width: 400px;
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid #e7eaee; border-radius: 2px;
  overflow: hidden; text-decoration: none;
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}
.mcard:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 106, 19, 0.45);
  box-shadow: 0 12px 26px rgba(20, 23, 26, 0.09);
}
.mcard__media {
  position: relative; aspect-ratio: 4 / 3; background: #fff;
}
.mcard__media img, .mcard__media .ph {
  position: absolute; inset: 16px; width: calc(100% - 32px); height: calc(100% - 32px);
  object-fit: contain;
}
.mcard__body {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px;
  padding: 16px 14px 18px; border-top: 1px solid #eef1f4; text-align: center;
}
.mcard__name { font-size: 15px; font-weight: 600; line-height: 1.5; color: var(--ink); }
.mcard__model { font-size: 14px; line-height: 1.4; color: #5b636a; }
.mcard__tag { margin-top: 7px; font-size: 13px; line-height: 1.6; color: var(--orange); }

@media (max-width: 940px)  { .cat-groups { gap: 48px; } }
@media (max-width: 720px)  {
  .model-row { gap: 12px; }
  .mcard { flex: 1 1 calc(50% - 6px); max-width: none; }
  .cat-group__head { margin-bottom: 16px; }
  .cat-group__title { font-size: 18px; padding-left: 12px; }
  .cat-group__title::before { height: 18px; width: 3px; }
  .cat-group__more { font-size: 13px; }
  .mcard__media img, .mcard__media .ph { inset: 10px; width: calc(100% - 20px); height: calc(100% - 20px); }
  .mcard__body { padding: 12px 10px 14px; }
  .mcard__name { font-size: 14px; }
  .mcard__model { font-size: 13px; }
  .mcard__tag { font-size: 12.5px; }
}

/* 产品介绍：图文混排（正文里插了图时生效） */
.pd-intro--rich { display: block; }
.pd-intro__lead {
  margin: 0 0 36px; max-width: 960px;
  border-radius: var(--radius); overflow: hidden;
  background: #fff; border: 1px solid var(--gray-200);
}
.pd-intro__lead > img, .pd-intro__lead > .ph {
  width: 100%; aspect-ratio: 16 / 9; object-fit: contain; display: block;
}
.pd-intro__lead figcaption {
  padding: 10px 14px; font-size: 12px; color: var(--gray-500);
  background: #fff; border-top: 1px solid var(--gray-200);
}
.pd-intro__article { max-width: 900px; }
.pd-intro__article p { font-size: 1.02rem; line-height: 1.9; color: var(--gray-600); }
.pd-intro__article p + p { margin-top: 18px; }
.pd-intro__article p + .pd-intro__figure, .pd-intro__figure + p { margin-top: 30px; }
.pd-intro__figure { margin: 30px 0 0; }
.pd-intro__figure > img {
  width: 100%; max-height: 760px; display: block; border-radius: var(--radius);
  border: 1px solid var(--gray-200); background: #fff;
  object-fit: contain;
}
.pd-intro__figure figcaption {
  margin-top: 10px; font-size: 12.5px; line-height: 1.6; color: var(--gray-500);
  padding-left: 12px; border-left: 3px solid var(--orange);
}
.pd-intro--rich .pd-intro__facts { margin-top: 36px; }

.pd-video {
  position: relative; aspect-ratio: 16 / 9; max-height: 640px;
  border-radius: var(--radius); overflow: hidden; background: #14171a;
}
.pd-video iframe, .pd-video video { width: 100%; height: 100%; border: 0; display: block; object-fit: cover; }
.pd-video__ph {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 12px;
  padding: 32px; text-align: center; color: #fff;
  background:
    radial-gradient(90% 130% at 50% 0%, rgba(255, 106, 19, 0.16), transparent 62%),
    linear-gradient(180deg, #1c2126 0%, #14171a 100%);
}
.pd-video__play {
  width: 68px; height: 68px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(255, 106, 19, 0.14); border: 1px solid rgba(255, 106, 19, 0.5);
}
.pd-video__play svg { width: 30px; height: 30px; fill: var(--orange); margin-left: 3px; }
.pd-video__ph b { font-size: 1.1rem; color: #fff; }
.pd-video__ph p { max-width: 540px; font-size: 13.5px; line-height: 1.7; color: var(--gray-400); }
.pd-video__ph .btn { margin-top: 6px; }

.pd-factory {
  padding: 56px; background: var(--gray-50);
  border: 1px solid var(--gray-200); border-radius: var(--radius-lg);
}
.pd-factory__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; }
.pd-factory__head .lead { max-width: 660px; }
.pd-factory__stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  margin-top: 44px; padding-top: 32px; border-top: 1px solid var(--gray-200);
}
.pd-factory__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 28px; }
.pd-factory__tile {
  margin: 0; border-radius: var(--radius); overflow: hidden;
  background: #fff; border: 1px solid var(--gray-200);
}
.pd-factory__tile > img, .pd-factory__tile > .ph {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block;
}
.pd-factory__tile figcaption { padding: 11px 14px; font-size: 12.5px; color: var(--gray-600); }
.pd-factory__grid--text { align-items: stretch; }
.pd-factory__item {
  padding: 18px 20px; background: #fff; border: 1px solid var(--gray-200); border-radius: var(--radius);
}
.pd-factory__item b { display: block; font-size: 14px; color: var(--ink); margin-bottom: 6px; }
.pd-factory__item p { font-size: 13px; line-height: 1.7; color: var(--gray-600); }

@media (max-width: 980px) {
  .pd-block { margin-top: 52px; padding-top: 44px; }
  .pd-intro { grid-template-columns: 1fr; gap: 28px; }
  .pd-intro__facts { grid-template-columns: repeat(2, 1fr); }
  .pd-intro__lead { margin-bottom: 26px; }
  .pd-intro__figure { margin-top: 24px; }
  .pd-intro--rich .pd-intro__facts { margin-top: 28px; }
  .pd-note { text-align: left; }
  .pd-factory { padding: 32px 24px; }
  .pd-factory__head { flex-direction: column; align-items: flex-start; gap: 20px; }
  .pd-factory__stats { grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 32px; }
  .pd-factory__grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .pd-video__play { width: 54px; height: 54px; }
  .pd-video__ph { padding: 22px 18px; gap: 10px; }
  .pd-video__ph p { font-size: 12.5px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  .header, .masthead, .topbar, .footer, .chat-fab, .chat-panel, .cookie, .modal, .hero__bar { display: none !important; }
  body { color: #000; }
}