/* ==========================================================================
   泽林通官网 · 样式表
   设计方向：工程图纸 / 调度中心 / 暖纸色 + 石墨黑 + 安全橙
   ========================================================================== */

/* ------------------------------- 设计变量 ------------------------------- */
:root {
  --ink: #0e1216;
  --ink-2: #151b21;
  --ink-3: #1e262e;
  --paper: #f3f0e9;
  --paper-2: #e9e4da;
  --paper-3: #ded7ca;
  --white: #ffffff;
  --orange: #f2652f;
  --orange-bright: #ff7b45;
  --orange-soft: #ffd9c9;
  --amber: #ffb15c;
  --muted: #5f6a75;
  --muted-2: #7d8893;
  --line: rgba(14, 18, 22, 0.14);
  --line-strong: rgba(14, 18, 22, 0.26);
  --line-light: rgba(255, 255, 255, 0.14);
  --line-light-strong: rgba(255, 255, 255, 0.24);
  --container: 1240px;
  --font-body: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-display: "Barlow Condensed", "DIN Alternate", "Arial Narrow", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "SFMono-Regular", "Cascadia Mono", "Roboto Mono", Consolas, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 86px;
  --lang-banner-h: 38px;
}

body.lang-banner-closed { --lang-banner-h: 0px; }

/* --------------------------------- 基础 --------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.no-scroll { overflow: hidden; }
body.nav-open { overflow: hidden; }

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

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }

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

[hidden] { display: none !important; }

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

.section {
  position: relative;
  padding: clamp(76px, 9vw, 128px) 0;
  scroll-margin-top: calc(92px + var(--lang-banner-h));
}

.section-dark { background: var(--ink); color: var(--white); }

.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;
}

.skip-link {
  position: fixed;
  top: 10px; left: 10px;
  z-index: 999;
  transform: translateY(-160%);
  background: var(--orange);
  color: var(--ink);
  padding: 10px 16px;
  font-size: 12px;
  font-weight: 700;
}
.skip-link:focus { transform: none; }

.svg-sprite {
  position: absolute;
  width: 0; height: 0;
  overflow: hidden;
}

.icon {
  width: 24px; height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: none;
}

.icon-art {
  width: 100%; height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* -------------------------------- 复用组件 ------------------------------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: none;
  color: var(--white);
}
.brand-mark {
  width: 42px; height: 42px;
  flex: none;
  display: block;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
}
.brand-mark svg { width: 100%; height: 100%; }
.brand-type { display: flex; flex-direction: column; line-height: 1; }
.brand-type strong {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.06em;
}
.brand-type small {
  margin-top: 5px;
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.3em;
  opacity: 0.58;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  line-height: 1.4;
  text-transform: uppercase;
}
.eyebrow > span {
  width: 30px; height: 1px;
  background: var(--orange);
  flex: none;
}
.eyebrow-light { color: rgba(255, 255, 255, 0.58); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.02em;
}
h2 {
  font-size: clamp(2.5rem, 4.4vw, 4.3rem);
  margin-top: 18px;
}
h2 br { display: block; }

.section-intro {
  max-width: 410px;
  padding-left: 22px;
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.95;
}
.section-head-dark .section-intro {
  color: rgba(255, 255, 255, 0.55);
  border-color: var(--line-light);
}

.section-head {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.75fr);
  gap: 56px;
  align-items: end;
  margin-bottom: 52px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.section-head::before {
  content: "";
  position: absolute;
  top: -5px; left: 0;
  width: 9px; height: 9px;
  background: var(--orange);
}
.section-head-dark { border-color: var(--line-light); }
.section-head-with-tools { align-items: start; }
.head-tools {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 1px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  cursor: pointer;
  text-align: center;
  transition: background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.btn .icon { width: 18px; height: 18px; transition: transform 0.3s var(--ease); }
.btn:hover .icon { transform: translateX(3px); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--orange); color: var(--ink); }
.btn-primary:hover { background: var(--orange-bright); }
.btn-ghost {
  border-color: rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.03);
  color: var(--white);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { border-color: var(--orange); color: var(--orange); }
.btn-dark { background: var(--ink); color: var(--white); }
.btn-dark:hover { background: var(--ink-3); }
.btn-light { background: var(--paper); color: var(--ink); }
.btn-light:hover { background: var(--white); }
.btn-outline {
  border-color: var(--line-strong);
  background: transparent;
  color: var(--ink);
}
.btn-outline:hover { border-color: var(--orange); color: var(--orange); }
.btn-sm { min-height: 42px; padding: 0 16px; font-size: 11px; }
.btn-block { width: 100%; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 0 6px;
  border: 0;
  border-bottom: 1px solid currentColor;
  background: none;
  color: inherit;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: color 0.3s var(--ease), gap 0.3s var(--ease);
}
.text-link .icon { width: 16px; height: 16px; }
.text-link:hover { color: var(--orange); gap: 12px; }
.text-link-dark { color: var(--ink); }

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 18px;
}
.tag-list li {
  padding: 5px 9px;
  border: 1px solid currentColor;
  font-size: 9px;
  line-height: 1.2;
  letter-spacing: 0.06em;
  opacity: 0.66;
}

/* -------------------------------- 页头 --------------------------------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  color: var(--white);
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(10, 14, 18, 0.92);
  border-bottom-color: rgba(255, 255, 255, 0.09);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(16px);
}
.lang-banner {
  height: var(--lang-banner-h);
  overflow: hidden;
  background: #080c10;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: height 0.35s var(--ease);
}
.lang-banner-inner {
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.lang-banner-copy {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
}
.lang-banner-dot {
  width: 5px; height: 5px;
  flex: none;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(242, 101, 47, 0.1);
}
.lang-banner-copy strong {
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.12em;
  white-space: nowrap;
}
.lang-banner-copy > span:last-child {
  overflow: hidden;
  color: rgba(255, 255, 255, 0.46);
  font-size: 9px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.lang-banner-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}
.lang-banner-primary {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 9px;
  background: var(--orange);
  color: var(--ink);
  font-size: 9px;
  font-weight: 700;
  transition: background 0.25s var(--ease);
}
.lang-banner-primary span {
  font-family: var(--font-mono);
  font-size: 7px;
  font-weight: 700;
  letter-spacing: 0.08em;
  opacity: 0.6;
}
.lang-banner-primary:hover { background: var(--orange-bright); }
.lang-banner-secondary {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 9px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.24);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.lang-banner-secondary .icon { width: 12px; height: 12px; }
.lang-banner-secondary:hover { color: var(--orange); border-color: var(--orange); }
.lang-banner-close {
  width: 24px; height: 24px;
  display: grid;
  place-items: center;
  border: 0;
  border-left: 1px solid rgba(255, 255, 255, 0.14);
  background: transparent;
  color: rgba(255, 255, 255, 0.42);
  cursor: pointer;
  transition: color 0.25s var(--ease);
}
.lang-banner-close:hover { color: var(--orange); }
.lang-banner-close .icon { width: 12px; height: 12px; }
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.2vw, 30px);
}
.main-nav a {
  position: relative;
  padding: 8px 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.06em;
  transition: color 0.25s var(--ease);
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--orange);
  transition: width 0.3s var(--ease);
}
.main-nav a:hover,
.main-nav a.is-active { color: var(--white); }
.main-nav a:hover::after,
.main-nav a.is-active::after { width: 100%; }
.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: none;
}
.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 28px;
  padding: 0 8px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: rgba(255, 255, 255, 0.68);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  white-space: nowrap;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.lang-switch:hover { border-color: var(--orange); color: var(--orange); }
.lang-switch-back { letter-spacing: 0.04em; }
.header-phone {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.2;
}
.header-phone span {
  color: rgba(255, 255, 255, 0.46);
  font-size: 8px;
  letter-spacing: 0.14em;
}
.header-phone strong {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.header-phone:hover strong { color: var(--orange); }
.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: transparent;
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 11px;
  width: 19px; height: 1px;
  background: var(--white);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease), top 0.3s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 20px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.nav-open .nav-toggle span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { top: 20px; transform: rotate(-45deg); }
.scroll-progress {
  position: absolute;
  left: 0; bottom: -1px;
  height: 2px;
  width: 0;
  background: var(--orange);
}

/* --------------------------------- 首屏 --------------------------------- */
.hero {
  position: relative;
  min-height: 720px;
  height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}
.hero-media,
.hero-shade,
.hero-grid {
  position: absolute;
  inset: 0;
}
.hero-media {
  background: url("../img/hero-poster.jpg") center / cover no-repeat;
}
.hero-media img,
.hero-media video {
  display: block;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 48%;
  transform: scale(1.03);
}
.hero-media video { filter: saturate(0.92) contrast(1.03); }
.hero-shade {
  background:
    linear-gradient(90deg, rgba(7, 11, 15, 0.96) 0%, rgba(7, 11, 15, 0.83) 38%, rgba(7, 11, 15, 0.38) 72%, rgba(7, 11, 15, 0.28) 100%),
    linear-gradient(180deg, rgba(7, 11, 15, 0.52) 0%, rgba(7, 11, 15, 0.08) 35%, rgba(7, 11, 15, 0.8) 100%);
}
.hero-grid {
  opacity: 0.34;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 120px 120px;
  -webkit-mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.7), transparent 62%);
  mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.7), transparent 62%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.55fr);
  gap: 48px;
  align-items: center;
  padding-top: calc(110px + var(--lang-banner-h));
  padding-bottom: 150px;
}
.hero-copy { max-width: 780px; }
.hero h1 {
  margin: 24px 0 26px;
  font-size: clamp(3.6rem, 7.4vw, 7.3rem);
  font-weight: 900;
  line-height: 0.93;
  letter-spacing: -0.045em;
  text-shadow: 0 18px 60px rgba(0, 0, 0, 0.28);
}
.hero h1 .accent { color: var(--orange); }
.hero-dot { color: var(--orange); }
.hero-sub {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.hero-sub i {
  color: var(--orange);
  font-style: normal;
  font-weight: 400;
}
.hero-desc {
  max-width: 540px;
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 13.5px;
  line-height: 1.95;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 30px;
}
.hero-trust li {
  display: flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.56);
  font-size: 10px;
  letter-spacing: 0.04em;
}
.hero-trust .icon { width: 13px; height: 13px; color: var(--orange); stroke-width: 2.4; }

.hero-panel {
  width: 100%;
  max-width: 360px;
  justify-self: end;
  align-self: center;
  margin-top: 84px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(11, 16, 21, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.28);
}
.time-window {
  position: absolute;
  top: calc(var(--lang-banner-h) + 88px);
  left: max(24px, calc((100vw - 1296px) / 2 + 24px));
  right: auto;
  z-index: 6;
  width: 300px;
  padding: 10px 14px 9px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(8, 12, 16, 0.68);
  color: var(--white);
  backdrop-filter: blur(16px);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
}
body.lang-en .time-window { top: 90px; }
.time-window-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: rgba(255, 255, 255, 0.42);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.12em;
}
.time-window-head span:last-child {
  color: var(--orange);
  font-size: 7.5px;
  letter-spacing: 0.04em;
  text-align: right;
}
.time-window-main {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-top: 4px;
  line-height: 1;
}
.time-window-main strong {
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.03em;
  line-height: 1;
}
.time-window-main > span {
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
}
.time-window-zone {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 6px;
  padding-top: 6px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}
.time-window-zone > span {
  flex: none;
  color: rgba(255, 255, 255, 0.38);
  font-size: 7px;
  letter-spacing: 0.08em;
}
.time-window-zone select {
  min-width: 0;
  width: 100%;
  padding: 2px 5px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.78);
  font-family: var(--font-mono);
  font-size: 8px;
  cursor: pointer;
}
.time-window-zone select:focus { outline: 1px solid var(--orange); outline-offset: 2px; }
.time-window-zone option { background: #0b1015; color: var(--white); }
.hero-panel-head,
.hero-panel-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 18px;
  color: rgba(255, 255, 255, 0.42);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.16em;
}
.hero-panel-head { border-bottom: 1px solid rgba(255, 255, 255, 0.12); }
.hero-panel-foot { border-top: 1px solid rgba(255, 255, 255, 0.12); }
.hero-panel-head .status { display: flex; align-items: center; gap: 6px; color: rgba(255, 255, 255, 0.62); letter-spacing: 0.04em; }
.status i { width: 5px; height: 5px; border-radius: 50%; background: #5cd08a; box-shadow: 0 0 0 4px rgba(92, 208, 138, 0.1); }
.hero-panel-link {
  display: grid;
  grid-template-columns: 28px 1fr 20px;
  gap: 12px;
  align-items: center;
  padding: 17px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: background 0.3s var(--ease), color 0.3s var(--ease), padding 0.3s var(--ease);
}
.hero-panel-link:last-of-type { border-bottom: 0; }
.hero-panel-link .panel-no {
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 9px;
}
.hero-panel-link .panel-txt { display: flex; flex-direction: column; min-width: 0; }
.hero-panel-link strong { font-size: 17px; font-weight: 700; letter-spacing: 0.02em; }
.hero-panel-link small { margin-top: 3px; color: rgba(255, 255, 255, 0.42); font-size: 9px; }
.hero-panel-link .icon { width: 17px; height: 17px; color: rgba(255, 255, 255, 0.4); transition: transform 0.3s var(--ease), color 0.3s var(--ease); }
.hero-panel-link:hover { background: var(--orange); color: var(--ink); padding-left: 23px; }
.hero-panel-link:hover .panel-no,
.hero-panel-link:hover small,
.hero-panel-link:hover .icon { color: var(--ink); opacity: 0.75; }
.hero-panel-link:hover .icon { transform: translateX(3px); }
.panel-code { letter-spacing: 0.1em; }

.hero-stats {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 3;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  background: linear-gradient(180deg, rgba(8, 12, 16, 0.1), rgba(8, 12, 16, 0.74));
  backdrop-filter: blur(12px);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 20px 26px;
  border-left: 1px solid rgba(255, 255, 255, 0.13);
}
.stat:first-child { border-left: 0; padding-left: 0; }
.stat strong {
  font-family: var(--font-display);
  font-size: 38px;
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.02em;
}
.stat strong span { font-size: 19px; }
.stat > span {
  color: rgba(255, 255, 255, 0.5);
  font-size: 9px;
  letter-spacing: 0.1em;
}

/* ------------------------------ 能力滚动条 ------------------------------ */
.capability-marquee {
  overflow: hidden;
  background: var(--orange);
  color: var(--ink);
  border-bottom: 1px solid rgba(14, 18, 22, 0.14);
}
.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 34s linear infinite;
}
.capability-marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-group {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 24px 14px 0;
  white-space: nowrap;
}
.marquee-group span {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
}
.marquee-group i {
  width: 5px; height: 5px;
  background: var(--ink);
  transform: rotate(45deg);
  opacity: 0.42;
}
@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* -------------------------------- 业务版图 ------------------------------- */
.business { background: var(--paper); }
.business-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.biz-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 490px;
  padding: 24px;
  overflow: hidden;
  border: 1px solid var(--line);
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease), border-color 0.45s var(--ease);
}
.biz-card::after {
  position: absolute;
  right: -10px; bottom: -28px;
  font-family: var(--font-display);
  font-size: 190px;
  font-weight: 900;
  line-height: 0.8;
  letter-spacing: -0.08em;
  opacity: 0.055;
  pointer-events: none;
}
.biz-card:nth-child(1)::after { content: "01"; }
.biz-card:nth-child(2)::after { content: "02"; }
.biz-card:nth-child(3)::after { content: "03"; }
.biz-card-orange { background: var(--orange); border-color: var(--orange); }
.biz-card-paper { background: var(--white); }
.biz-card-dark { background: var(--ink-2); color: var(--white); border-color: var(--ink-3); }
.biz-card:hover {
  transform: translateY(-7px);
  box-shadow: 0 28px 56px rgba(14, 18, 22, 0.16);
}
.biz-card-orange:hover { box-shadow: 0 28px 56px rgba(242, 101, 47, 0.24); }
.biz-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 13px;
  border-bottom: 1px solid rgba(14, 18, 22, 0.24);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
}
.biz-card-dark .biz-top { border-color: rgba(255, 255, 255, 0.18); }
.biz-art {
  height: 172px;
  display: flex;
  align-items: center;
  margin: 12px 0 8px;
  color: currentColor;
}
.biz-art svg {
  width: 158px; height: 112px;
  transition: transform 0.5s var(--ease);
}
.biz-card:hover .biz-art svg { transform: translateX(8px) scale(1.04); }
.biz-body { margin-top: auto; }
.biz-body h3 { font-size: 30px; margin-bottom: 11px; }
.biz-body p { max-width: 330px; font-size: 12.5px; line-height: 1.9; opacity: 0.76; }
.biz-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 22px;
  padding-top: 15px;
  border-top: 1px solid rgba(14, 18, 22, 0.24);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
}
.biz-card-dark .biz-link { border-color: rgba(255, 255, 255, 0.18); }
.biz-link .icon { width: 17px; height: 17px; transition: transform 0.3s var(--ease); }
.biz-link:hover .icon { transform: translateX(4px); }

/* ------------------------------- 采购准入 ------------------------------- */
.compliance {
  background:
    linear-gradient(180deg, #e9e4da 0%, var(--paper) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.compliance-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.82fr);
  gap: 70px;
  align-items: center;
}
.compliance-copy h2 {
  margin: 18px 0 20px;
  font-size: clamp(2.6rem, 4.4vw, 4.3rem);
}
.compliance-lead {
  max-width: 600px;
  color: #444e58;
  font-size: 13px;
  line-height: 1.95;
}
.compliance-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin: 20px 0 24px;
}
.compliance-tags span {
  padding: 5px 9px;
  border: 1px solid var(--line-strong);
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.04em;
}
.compliance-source {
  max-width: 560px;
  margin-top: 16px;
  color: var(--muted-2);
  font-size: 8.5px;
  line-height: 1.65;
}
.compliance-source a { color: var(--muted); text-decoration: underline; text-underline-offset: 2px; }
.compliance-source a:hover { color: var(--orange); }
.compliance-card {
  position: relative;
  overflow: hidden;
  padding: 24px;
  border: 1px solid var(--ink-3);
  background:
    radial-gradient(circle at 100% 0%, rgba(242, 101, 47, 0.22), transparent 40%),
    var(--ink);
  color: var(--white);
  box-shadow: 0 26px 60px rgba(14, 18, 22, 0.18);
}
.compliance-card::after {
  content: "SOE";
  position: absolute;
  right: -20px; bottom: -30px;
  color: rgba(255, 255, 255, 0.035);
  font-family: var(--font-display);
  font-size: 170px;
  font-weight: 900;
  line-height: 0.8;
  pointer-events: none;
}
.compliance-seal {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  border: 1px solid rgba(242, 101, 47, 0.55);
}
.compliance-seal > span {
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
}
.compliance-seal strong {
  margin-left: auto;
  color: var(--orange);
  font-family: var(--font-display);
  font-size: 23px;
  line-height: 1.05;
  text-align: right;
}
.compliance-list {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0;
  margin-top: 14px;
}
.compliance-list li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.compliance-list li > span {
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 8px;
}
.compliance-list strong { display: block; font-size: 12px; font-weight: 600; }
.compliance-list small { display: block; margin-top: 2px; color: rgba(255, 255, 255, 0.45); font-size: 9px; line-height: 1.55; }
.compliance-note {
  position: relative;
  z-index: 1;
  margin-top: 13px;
  color: rgba(255, 255, 255, 0.38);
  font-size: 8px;
  line-height: 1.6;
}

/* -------------------------------- 设备租赁 ------------------------------- */
.rental {
  background:
    linear-gradient(180deg, var(--paper) 0%, #ece7dc 100%);
}
.rental-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.equip-card {
  display: flex;
  flex-direction: column;
  min-height: 405px;
  padding: 19px;
  border: 1px solid var(--line);
  background: var(--white);
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.equip-card:hover {
  transform: translateY(-4px);
  border-color: rgba(242, 101, 47, 0.55);
  box-shadow: 0 22px 44px rgba(14, 18, 22, 0.09);
}
.equip-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--muted);
}
.equip-tag {
  padding: 4px 7px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 9px;
  letter-spacing: 0.04em;
}
.equip-art {
  position: relative;
  display: grid;
  place-items: center;
  height: 145px;
  margin: 13px 0 6px;
  overflow: hidden;
  border: 1px solid rgba(14, 18, 22, 0.08);
  background-color: #fbf9f4;
  background-image:
    linear-gradient(rgba(14, 18, 22, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 18, 22, 0.04) 1px, transparent 1px);
  background-size: 22px 22px;
  transition: background-color 0.4s var(--ease);
}
.equip-art::before,
.equip-art::after {
  content: "";
  position: absolute;
  z-index: 2;
  width: 10px; height: 10px;
  border-color: rgba(242, 101, 47, 0.72);
  border-style: solid;
}
.equip-art::before { top: 7px; left: 7px; border-width: 1px 0 0 1px; }
.equip-art::after { right: 7px; bottom: 7px; border-width: 0 1px 1px 0; }
.equip-art svg {
  width: 158px; height: 106px;
  color: var(--ink);
  transition: transform 0.5s var(--ease), color 0.4s var(--ease);
}
.equip-art img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.55s var(--ease), filter 0.4s var(--ease);
  filter: saturate(0.9) contrast(1.02);
}
.equip-card:hover .equip-art img { transform: scale(1.045); filter: saturate(1) contrast(1.04); }
.equip-brands {
  margin-top: 5px;
  color: var(--muted-2);
  font-size: 9.5px;
  line-height: 1.55;
}
.equip-card:hover .equip-art { background-color: #fff7f1; }
.equip-card:hover .equip-art svg { transform: scale(1.06) translateX(3px); color: #b94618; }
.equip-card h3 { font-size: 23px; margin: 9px 0 5px; }
.equip-desc {
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.7;
  min-height: 39px;
}
.equip-specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 14px 0 0;
  padding: 11px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.equip-specs dt {
  color: var(--muted-2);
  font-size: 9px;
  letter-spacing: 0.06em;
}
.equip-specs dd {
  margin: 3px 0 0;
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.4;
}
.equip-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 13px;
}
.equip-terms { color: var(--muted); font-size: 9px; letter-spacing: 0.02em; }
.add-round {
  width: 37px; height: 37px;
  display: grid;
  place-items: center;
  flex: none;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
  transition: background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.add-round .icon { width: 15px; height: 15px; }
.add-round:hover { background: var(--orange); border-color: var(--orange); color: var(--ink); transform: rotate(90deg); }
.add-round.is-added { background: var(--ink); border-color: var(--ink); color: var(--white); }

.inline-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin-top: 24px;
  padding: 26px 30px;
  background: var(--ink);
  color: var(--white);
}
.inline-cta strong { display: block; font-size: 18px; }
.inline-cta span { display: block; margin-top: 4px; color: rgba(255, 255, 255, 0.48); font-size: 11.5px; }

/* -------------------------------- 建材供应 ------------------------------- */
.materials {
  background:
    radial-gradient(circle at 87% 2%, rgba(242, 101, 47, 0.14), transparent 28%),
    var(--ink);
  overflow: hidden;
}
.materials::after {
  content: "MATERIAL";
  position: absolute;
  right: -30px; bottom: -34px;
  color: rgba(255, 255, 255, 0.025);
  font-family: var(--font-display);
  font-size: 200px;
  font-weight: 900;
  line-height: 0.8;
  letter-spacing: -0.04em;
  pointer-events: none;
}
.materials-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}
.materials-aside {
  position: sticky;
  top: 120px;
}
.aside-label {
  color: rgba(255, 255, 255, 0.38);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.16em;
}
.big-number {
  margin: 16px 0 22px;
  color: var(--orange);
  font-family: var(--font-display);
  font-size: 108px;
  font-weight: 800;
  line-height: 0.78;
  letter-spacing: -0.04em;
}
.big-number span {
  margin-left: 10px;
  color: rgba(255, 255, 255, 0.42);
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
}
.aside-note {
  max-width: 240px;
  color: rgba(255, 255, 255, 0.52);
  font-size: 11.5px;
  line-height: 1.9;
}
.materials-aside .text-link { margin-top: 26px; color: var(--white); }
.aside-fine { margin-top: 8px; color: rgba(255, 255, 255, 0.28); font-size: 8.5px; }
.material-list { border-top: 1px solid var(--line-light); }
.material-row {
  display: grid;
  grid-template-columns: 42px minmax(150px, 1.1fr) minmax(160px, 0.9fr) 22px;
  gap: 16px;
  align-items: center;
  width: 100%;
  padding: 20px 0;
  border: 0;
  border-bottom: 1px solid var(--line-light);
  background: transparent;
  color: var(--white);
  text-align: left;
  cursor: pointer;
  transition: background 0.3s var(--ease), padding 0.3s var(--ease);
}
.material-row:hover { background: rgba(255, 255, 255, 0.035); padding-left: 12px; padding-right: 12px; }
.material-no {
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 9px;
}
.material-name {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
}
.material-name small {
  color: rgba(255, 255, 255, 0.3);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.1em;
}
.material-spec { color: rgba(255, 255, 255, 0.46); font-size: 11px; }
.material-row .icon { width: 19px; height: 19px; color: rgba(255, 255, 255, 0.35); transition: color 0.3s var(--ease), transform 0.3s var(--ease); }
.material-row:hover .icon { color: var(--orange); transform: translate(3px, -3px); }

/* -------------------------------- 配件供应 ------------------------------- */
.parts { background: var(--paper); }
.parts-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 76px;
  align-items: start;
}
.parts-copy {
  position: sticky;
  top: 120px;
}
.parts-copy h2 { margin: 18px 0 22px; }
.parts-lead {
  max-width: 480px;
  color: #46505b;
  font-size: 13px;
  line-height: 1.95;
}
.part-search {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 28px;
  padding: 5px 0;
  border-bottom: 2px solid var(--ink);
}
.part-search > .icon { width: 20px; height: 20px; color: var(--muted); }
.part-search input {
  flex: 1;
  min-width: 0;
  padding: 10px 8px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 14px;
  outline: none;
}
.part-search input::placeholder { color: var(--muted-2); }
.part-search button {
  width: 42px; height: 42px;
  display: grid;
  place-items: center;
  flex: none;
  border: 0;
  background: var(--ink);
  color: var(--white);
  cursor: pointer;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}
.part-search button:hover { background: var(--orange); color: var(--ink); }
.form-hint { margin-top: 9px; color: var(--muted-2); font-size: 10px; }
.parts-brand-note {
  display: grid;
  gap: 6px;
  margin-top: 30px;
  padding: 17px 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.36);
}
.parts-brand-note span {
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.14em;
}
.parts-brand-note p { color: var(--muted); font-size: 10.5px; line-height: 1.7; }
.parts-right { min-width: 0; }
.part-brands-wrap { margin-bottom: 14px; }
.part-brands-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-top: 1px solid var(--line);
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.12em;
}
.part-brands {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}
.brand-tile {
  position: relative;
  min-height: 96px;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink);
  color: var(--white);
  text-align: left;
  cursor: pointer;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.brand-tile::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 12, 16, 0.02), rgba(8, 12, 16, 0.86));
}
.brand-tile img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0.62;
  filter: saturate(0.8) contrast(1.03);
  transition: transform 0.45s var(--ease), opacity 0.35s var(--ease);
}
.brand-tile-body {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 94px;
  padding: 9px 10px;
}
.brand-no {
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.08em;
}
.brand-tile strong {
  margin-top: auto;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.1;
}
.brand-tile small {
  margin-top: 2px;
  color: rgba(255, 255, 255, 0.6);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.1em;
}
.brand-tile:hover { border-color: var(--orange); transform: translateY(-2px); }
.brand-tile:hover img { transform: scale(1.06); opacity: 0.75; }
.brand-tile-other {
  display: flex;
  align-items: stretch;
  background: var(--paper-2);
  color: var(--ink);
  border-color: var(--line);
}
.brand-tile-other::after { display: none; }
.brand-tile-other .brand-tile-body { justify-content: flex-end; }
.brand-tile-other strong { font-size: 15px; }
.brand-tile-other small { color: var(--muted); }
.brand-tile-other:hover { border-color: var(--orange); }
.part-brands-note { margin-top: 6px; color: var(--muted-2); font-size: 8px; line-height: 1.55; }

.part-systems {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 11px;
}
.part-card {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 18px;
  gap: 13px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--white);
  text-align: left;
  cursor: pointer;
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.part-card:hover {
  transform: translateY(-3px);
  border-color: rgba(242, 101, 47, 0.6);
  box-shadow: 0 16px 32px rgba(14, 18, 22, 0.08);
}
.part-card-icon {
  width: 46px; height: 46px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid var(--line);
  color: var(--ink);
  transition: background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.part-card-icon svg { width: 30px; height: 30px; }
.part-card-icon img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.88); }
.part-card:hover .part-card-icon { background: var(--orange); border-color: var(--orange); color: var(--ink); }
.part-card-text { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.part-card-text strong {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.15;
}
.part-card-text small { color: var(--muted); font-size: 9.5px; line-height: 1.55; }
.part-card > .icon { width: 15px; height: 15px; margin-top: 4px; color: var(--muted-2); }

/* -------------------------------- 采购中心 ------------------------------- */
.procurement {
  background:
    linear-gradient(180deg, #e9e3d8 0%, #f3f0e9 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.proc-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 44px;
  margin-bottom: 34px;
}
.proc-head h2 { margin-bottom: 20px; }
.proc-head .section-intro { padding-left: 0; border-left: 0; max-width: 480px; }
.proc-summary {
  display: flex;
  align-items: center;
  gap: 20px;
  flex: none;
  padding-bottom: 3px;
}
.proc-summary > span { color: var(--muted); font-size: 11px; white-space: nowrap; }
.proc-summary strong {
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 800;
  line-height: 1;
}
.proc-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 13px 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}
.search-field {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 320px;
  padding: 6px 0;
  border-bottom: 1px solid var(--line-strong);
  transition: border-color 0.3s var(--ease);
}
.search-field:focus-within { border-color: var(--orange); }
.search-field > .icon { width: 17px; height: 17px; color: var(--muted); }
.search-field input {
  flex: 1;
  min-width: 0;
  padding: 5px 3px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 12px;
  outline: none;
}
.search-field input::placeholder { color: var(--muted-2); }
.search-clear {
  width: 24px; height: 24px;
  display: grid;
  place-items: center;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.search-clear .icon { width: 13px; height: 13px; }
.filter-tabs { display: flex; flex-wrap: wrap; gap: 7px; }
.filter-btn {
  padding: 7px 12px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.2;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.filter-btn:hover { border-color: var(--ink); color: var(--ink); }
.filter-btn.is-active { background: var(--ink); border-color: var(--ink); color: var(--white); }
.proc-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 11px 0 17px;
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.06em;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 13px;
}
.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 285px;
  padding: 17px;
  border: 1px solid var(--line);
  background: var(--white);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}
.product-card:hover {
  transform: translateY(-4px);
  border-color: rgba(242, 101, 47, 0.42);
  box-shadow: 0 18px 36px rgba(14, 18, 22, 0.08);
}
.product-card.is-filtered { display: none; }
.product-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.08em;
}
.product-type { padding: 4px 7px; background: var(--paper); color: var(--ink); font-family: var(--font-body); font-size: 8.5px; }
.product-card[data-type="rental"] .product-type { background: var(--orange); }
.product-card[data-type="materials"] .product-type { background: var(--ink); color: var(--white); }
.product-card[data-type="parts"] .product-type { background: var(--paper-3); }
.product-art {
  display: flex;
  align-items: center;
  height: 92px;
  margin: 12px 0 7px;
  overflow: hidden;
  border: 1px solid rgba(14, 18, 22, 0.08);
  color: var(--ink);
}
.product-art svg { width: 70px; height: 70px; transition: transform 0.4s var(--ease); }
.product-art img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.45s var(--ease), filter 0.35s var(--ease);
  filter: saturate(0.9) contrast(1.02);
}
.product-card:hover .product-art img { transform: scale(1.045); filter: saturate(1); }
.product-card:hover .product-art svg { transform: translateX(4px); }
.product-card h3 { font-size: 19px; margin-bottom: 4px; }
.product-spec { color: var(--muted); font-size: 10.5px; line-height: 1.55; min-height: 32px; }
.product-desc { margin-top: 7px; color: var(--muted); font-size: 10.5px; line-height: 1.65; }
.product-brands {
  margin-top: 5px;
  color: var(--muted-2);
  font-size: 9.5px;
  line-height: 1.55;
}
.product-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}
.product-unit { color: var(--muted-2); font-size: 8.5px; letter-spacing: 0.04em; }
.add-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 9px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--ink);
  font-size: 9px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.add-btn .icon { width: 12px; height: 12px; }
.add-btn:hover { background: var(--ink); border-color: var(--ink); color: var(--white); }
.add-btn.is-added { background: var(--orange); border-color: var(--orange); color: var(--ink); }
.empty-state {
  display: grid;
  place-items: center;
  gap: 9px;
  padding: 64px 24px;
  border: 1px dashed var(--line-strong);
  text-align: center;
}
.empty-state > .icon { width: 34px; height: 34px; color: var(--muted-2); }
.empty-state h3 { font-size: 24px; }
.empty-state p { color: var(--muted); font-size: 11px; }
.empty-state .btn { margin-top: 8px; }
.proc-note {
  max-width: 820px;
  margin-top: 18px;
  color: var(--muted-2);
  font-size: 9px;
  line-height: 1.75;
}

/* --------------------------------- 为什么 -------------------------------- */
.why {
  background:
    radial-gradient(circle at 92% 10%, rgba(242, 101, 47, 0.1), transparent 31%),
    #0b1015;
  overflow: hidden;
}
.why::after {
  content: "SUPPLY";
  position: absolute;
  left: -22px; bottom: -42px;
  color: rgba(255, 255, 255, 0.022);
  font-family: var(--font-display);
  font-size: 240px;
  font-weight: 900;
  line-height: 0.8;
  pointer-events: none;
}
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 18px;
  border-top: 1px solid var(--line-light);
  border-left: 1px solid var(--line-light);
}
.why-item {
  min-height: 190px;
  padding: 26px;
  border-right: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
  transition: background 0.35s var(--ease);
}
.why-item:hover { background: rgba(242, 101, 47, 0.07); }
.why-no {
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
}
.why-item h3 { margin: 12px 0 7px; font-size: 20px; }
.why-item p { max-width: 300px; color: rgba(255, 255, 255, 0.52); font-size: 11.5px; line-height: 1.8; }
.why-banner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 40px;
  background: var(--orange);
  color: var(--ink);
}
.why-banner > div {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 22px 24px;
  border-right: 1px solid rgba(14, 18, 22, 0.2);
}
.why-banner > div:last-child { border-right: 0; }
.why-banner strong {
  font-family: var(--font-display);
  font-size: 38px;
  font-weight: 800;
  line-height: 0.9;
}
.why-banner span { font-size: 9px; letter-spacing: 0.08em; opacity: 0.7; }

/* --------------------------------- 流程 --------------------------------- */
.process { background: var(--paper); }
.process-track {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  margin-top: 54px;
  border-top: 1px solid var(--line);
}
.process-step {
  position: relative;
  min-height: 168px;
  padding: 26px 17px 0 0;
  border-right: 1px solid var(--line);
}
.process-step:last-child { border-right: 0; }
.process-step::before {
  content: "";
  position: absolute;
  top: -5px; left: 0;
  width: 9px; height: 9px;
  background: var(--orange);
}
.step-no { color: var(--orange); font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.1em; }
.process-step h3 { margin: 13px 0 7px; font-size: 18px; transition: color 0.3s var(--ease); }
.process-step:hover h3 { color: var(--orange); }
.process-step p { max-width: 150px; color: var(--muted); font-size: 10.5px; line-height: 1.7; }

/* --------------------------------- 关于 --------------------------------- */
.about {
  background:
    linear-gradient(180deg, var(--paper) 0%, #ece6db 100%);
}
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 76px;
  align-items: center;
}
.about-media {
  position: relative;
  margin: 0;
  padding: 0 20px 20px 0;
}
.about-media::before {
  content: "";
  position: absolute;
  top: 20px; left: 20px; right: 0; bottom: 0;
  border: 1px solid rgba(242, 101, 47, 0.7);
}
.about-media img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  filter: saturate(0.78) contrast(1.03);
}
.about-media figcaption {
  position: absolute;
  left: 0; bottom: 0; right: 20px;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 16px;
  background: var(--ink);
  color: rgba(255, 255, 255, 0.68);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.1em;
}
.about-badge {
  position: absolute;
  top: 0; right: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  background: var(--paper);
}
.about-badge strong {
  color: var(--orange);
  font-family: var(--font-display);
  font-size: 38px;
  font-weight: 800;
  line-height: 0.8;
}
.about-badge span { color: var(--muted); font-size: 8px; line-height: 1.5; }
.about-copy h2 { margin: 18px 0 22px; font-size: clamp(2.2rem, 3.8vw, 3.6rem); }
.about-copy > p {
  margin-bottom: 13px;
  color: #444e58;
  font-size: 12.5px;
  line-height: 1.95;
}
.about-values {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin: 24px 0;
  border-top: 1px solid var(--line);
}
.about-values > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.about-values > div:nth-child(odd) { padding-right: 18px; }
.about-values > div:nth-child(even) { padding-left: 18px; border-left: 1px solid var(--line); }
.about-values strong { font-size: 13px; }
.about-values span { color: var(--muted); font-size: 9.5px; }

/* --------------------------------- FAQ ---------------------------------- */
.faq { background: var(--white); }
.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: 76px;
  align-items: start;
}
.faq-intro { position: sticky; top: 120px; }
.faq-intro h2 { margin: 18px 0 18px; font-size: clamp(2.2rem, 3.8vw, 3.7rem); }
.faq-intro p { max-width: 330px; color: var(--muted); font-size: 12.5px; line-height: 1.9; }
.faq-intro .text-link { margin-top: 24px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary span {
  position: relative;
  width: 26px; height: 26px;
  flex: none;
  border: 1px solid var(--line-strong);
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.faq-item summary span::before,
.faq-item summary span::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 10px; height: 1px;
  background: var(--ink);
  transform: translate(-50%, -50%);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
}
.faq-item summary span::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-item[open] summary span { background: var(--orange); border-color: var(--orange); }
.faq-item[open] summary span::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq-answer { padding: 0 46px 20px 0; animation: fadeIn 0.35s var(--ease); }
.faq-answer p { color: var(--muted); font-size: 11.5px; line-height: 1.9; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: none; }
}

/* --------------------------------- 联系 --------------------------------- */
.contact {
  position: relative;
  overflow: hidden;
  background: #080c10;
}
.contact-bg {
  position: absolute;
  inset: 0;
  opacity: 0.18;
}
.contact-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 12, 16, 0.98) 0%, rgba(8, 12, 16, 0.86) 50%, rgba(8, 12, 16, 0.72) 100%),
    linear-gradient(180deg, rgba(8, 12, 16, 0.5), rgba(8, 12, 16, 0.94));
}
.contact-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.05);
}
.contact-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 0.82fr);
  gap: 76px;
  align-items: center;
}
.contact-copy h2 { margin: 18px 0 20px; font-size: clamp(2.8rem, 5vw, 4.6rem); }
.contact-lead { max-width: 460px; color: rgba(255, 255, 255, 0.6); font-size: 13px; line-height: 1.95; }
.contact-list {
  margin-top: 32px;
  border-top: 1px solid var(--line-light);
}
.contact-list li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line-light);
}
.contact-icon {
  width: 36px; height: 36px;
  display: grid;
  place-items: center;
  flex: none;
  border: 1px solid var(--line-light);
  color: var(--orange);
}
.contact-icon .icon { width: 16px; height: 16px; }
.contact-list li > span:last-child { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.contact-list small {
  color: rgba(255, 255, 255, 0.34);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.12em;
}
.contact-list strong { color: var(--white); font-size: 13px; font-weight: 500; }
.contact-list a:hover strong { color: var(--orange); }

.contact-card {
  padding: 27px;
  border: 1px solid var(--line-light);
  background: rgba(255, 255, 255, 0.055);
  backdrop-filter: blur(12px);
}
.form-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-light);
}
.form-kicker {
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.14em;
}
.form-head h3 { margin-top: 5px; font-size: 27px; }
.form-badge {
  padding: 5px 8px;
  border: 1px solid rgba(242, 101, 47, 0.55);
  color: var(--orange);
  font-size: 8px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 13px; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 13px; }
.field > span { color: rgba(255, 255, 255, 0.54); font-size: 10px; letter-spacing: 0.04em; }
.field em { color: var(--orange); font-style: normal; }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 0;
  background: rgba(255, 255, 255, 0.035);
  color: var(--white);
  font-size: 12.5px;
  line-height: 1.5;
  outline: none;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
  color-scheme: dark;
}
.field input::placeholder,
.field textarea::placeholder { color: rgba(255, 255, 255, 0.26); }
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--orange);
  background: rgba(255, 255, 255, 0.06);
}
.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='1.8' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 34px;
}
.field textarea { resize: vertical; min-height: 100px; }
.field.has-error input,
.field.has-error select,
.field.has-error textarea { border-color: #ff8060; }
.field-error { color: #ff9c7f; font-size: 9px; line-height: 1.4; }
.form-note { margin-top: 9px; color: rgba(255, 255, 255, 0.36); font-size: 9px; line-height: 1.6; }
.contact-card .btn-block { margin-top: 2px; }
.contact-card .btn-outline { color: var(--white); border-color: var(--line-light-strong); }
.contact-card .btn-outline:hover { color: var(--orange); border-color: var(--orange); }

.contact-success { text-align: center; padding: 24px 4px; }
.success-icon {
  width: 62px; height: 62px;
  display: grid;
  place-items: center;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--orange);
  color: var(--ink);
}
.success-icon .icon { width: 26px; height: 26px; stroke-width: 2.4; }
.contact-success h3 { font-size: 30px; }
.contact-success p { margin-top: 8px; color: rgba(255, 255, 255, 0.5); font-size: 11px; }
.contact-success p strong { color: var(--orange); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.04em; }
.success-urgent {
  max-width: 320px;
  margin: 20px auto 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  text-align: center;
}
.success-urgent > span {
  display: block;
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.06em;
}
.success-urgent > a {
  display: inline-block;
  margin: 5px 0 4px;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.03em;
}
.success-urgent > a:hover { color: var(--orange); }
.success-urgent > small {
  display: block;
  color: var(--muted-2);
  font-size: 8px;
  line-height: 1.6;
}
.contact-success .success-urgent { border-top-color: rgba(255, 255, 255, 0.16); }
.contact-success .success-urgent > a { color: var(--orange); }
.contact-success .success-urgent > span,
.contact-success .success-urgent > small { color: rgba(255, 255, 255, 0.5); }
.success-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 9px; margin: 22px 0 16px; }
.contact-success .text-link { color: rgba(255, 255, 255, 0.62); }
.contact-success .text-link:hover { color: var(--orange); }

/* --------------------------------- 页脚 -------------------------------- */
.site-footer {
  padding: 62px 0 24px;
  background: #06090c;
  color: var(--white);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.45fr 0.7fr 0.7fr 0.95fr;
  gap: 44px;
}
.brand-footer .brand-mark { width: 38px; height: 38px; }
.brand-footer .brand-type strong { font-size: 18px; }
.footer-brand > p {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.4);
  font-size: 11px;
  line-height: 1.9;
}
.footer-area {
  display: inline-block;
  margin-top: 16px;
  padding: 5px 8px;
  border: 1px solid rgba(242, 101, 47, 0.42);
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.12em;
}
.footer-col h4 {
  margin: 4px 0 17px;
  color: rgba(255, 255, 255, 0.32);
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.footer-col a,
.footer-col p {
  display: block;
  margin: 0 0 9px;
  color: rgba(255, 255, 255, 0.56);
  font-size: 11px;
  line-height: 1.6;
  transition: color 0.25s var(--ease);
}
.footer-col a:hover { color: var(--orange); }
.footer-inquiry {
  display: inline-flex !important;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  color: var(--orange) !important;
}
.footer-inquiry .icon { width: 14px; height: 14px; }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 44px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.27);
  font-size: 8.5px;
}
.footer-fine { max-width: 520px; }
.footer-bottom a:hover { color: var(--orange); }

/* ------------------------------- 询价抽屉 ------------------------------- */
.cart-fab {
  position: fixed;
  right: 22px; bottom: 22px;
  z-index: 120;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 15px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: var(--ink);
  color: var(--white);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.22);
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
  transform: translateY(120%);
  opacity: 0;
  transition: transform 0.45s var(--ease), opacity 0.45s var(--ease), background 0.3s var(--ease);
}
.cart-fab.is-visible { transform: none; opacity: 1; }
.cart-fab:hover { background: var(--ink-3); }
.cart-fab .icon { width: 16px; height: 16px; color: var(--orange); }
.cart-fab strong {
  min-width: 19px; height: 19px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--orange);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 9px;
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 190;
  background: rgba(0, 0, 0, 0.58);
  backdrop-filter: blur(3px);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.drawer-overlay.is-open { opacity: 1; }

.drawer {
  position: fixed;
  top: 0; right: 0;
  z-index: 200;
  display: flex;
  flex-direction: column;
  width: min(500px, 100%);
  height: 100dvh;
  background: var(--paper);
  color: var(--ink);
  transform: translateX(102%);
  transition: transform 0.5s var(--ease);
  box-shadow: -30px 0 80px rgba(0, 0, 0, 0.24);
}
.drawer.is-open { transform: none; }
.drawer-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding: 21px 22px;
  background: var(--ink);
  color: var(--white);
}
.drawer-kicker { color: var(--orange); font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.14em; }
.drawer-head h2 { margin-top: 4px; font-size: 27px; }
.drawer-head h2 span { color: var(--orange); }
.drawer-close {
  width: 38px; height: 38px;
  display: grid;
  place-items: center;
  flex: none;
  border: 1px solid var(--line-light-strong);
  background: transparent;
  color: var(--white);
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.drawer-close:hover { background: var(--orange); border-color: var(--orange); color: var(--ink); }
.drawer-close .icon { width: 17px; height: 17px; }
.drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px 22px 30px;
  overscroll-behavior: contain;
}
.cart-empty { text-align: center; padding: 58px 16px; }
.cart-empty > .icon { width: 44px; height: 44px; margin: 0 auto 16px; color: var(--muted-2); }
.cart-empty h3 { font-size: 26px; }
.cart-empty p { margin-top: 6px; color: var(--muted); font-size: 11px; }
.cart-empty .btn { margin-top: 20px; }
.cart-item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}
.cart-item-art {
  width: 52px; height: 52px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: var(--white);
}
.cart-item-art svg { width: 36px; height: 36px; }
.cart-item-name { font-size: 13px; font-weight: 600; line-height: 1.35; }
.cart-item-spec { margin-top: 2px; color: var(--muted); font-size: 9.5px; }
.cart-item-qty {
  display: inline-flex;
  align-items: center;
  margin-top: 7px;
  border: 1px solid var(--line);
}
.cart-item-qty button {
  width: 24px; height: 24px;
  display: grid;
  place-items: center;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.cart-item-qty button:hover { background: var(--paper-2); color: var(--ink); }
.cart-item-qty .icon { width: 11px; height: 11px; }
.cart-item-qty input {
  width: 35px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 10px;
  text-align: center;
  outline: none;
}
.cart-item-unit { font-size: 8.5px; color: var(--muted-2); margin-left: 5px; }
.cart-item-side { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.cart-item-code { color: var(--muted-2); font-family: var(--font-mono); font-size: 8px; }
.cart-remove {
  margin-top: 4px;
  padding: 0;
  border: 0;
  border-bottom: 1px solid currentColor;
  background: none;
  color: var(--muted-2);
  font-size: 8px;
  cursor: pointer;
}
.cart-remove:hover { color: #c53d16; }

.inquiry-form {
  margin-top: 20px;
  padding: 17px;
  border: 1px solid var(--line);
  background: var(--white);
}
.inquiry-form-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  padding-bottom: 11px;
  border-bottom: 1px solid var(--line);
}
.inquiry-form-head h3 { font-size: 20px; }
.inquiry-form-head span { color: var(--muted-2); font-size: 8.5px; }
.inquiry-form-head em { color: var(--orange); font-style: normal; }
.inquiry-form .field > span { color: var(--muted); }
.inquiry-form .field input,
.inquiry-form .field select,
.inquiry-form .field textarea {
  border-color: var(--line);
  background: #fbf9f4;
  color: var(--ink);
  color-scheme: light;
}
.inquiry-form .field input::placeholder,
.inquiry-form .field textarea::placeholder { color: var(--muted-2); }
.inquiry-form .field input:focus,
.inquiry-form .field select:focus,
.inquiry-form .field textarea:focus { border-color: var(--orange); background: var(--white); }
.inquiry-form .field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%230e1216' stroke-width='1.8' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
}
.rental-dates {
  margin: 1px 0 12px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}
.rental-dates .field { margin-bottom: 0; }
.cart-line-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 14px 0 2px;
  padding: 11px 0;
  border-top: 1px solid var(--line-strong);
  color: var(--muted);
  font-size: 10px;
}
.cart-line-total strong { color: var(--ink); font-size: 11px; }

.cart-success { text-align: center; padding: 34px 8px; }
.cart-success .success-icon { background: var(--orange); }
.cart-success h3 { font-size: 30px; }
.cart-success p { margin-top: 7px; color: var(--muted); font-size: 11px; }
.cart-success p strong { color: var(--ink); font-family: var(--font-mono); font-size: 11px; }
.cart-success .success-note { margin: 10px auto 0; max-width: 300px; line-height: 1.7; }
.cart-success .success-actions { justify-content: center; }
.cart-success .btn-outline { border-color: var(--line-strong); color: var(--ink); }
.cart-success .btn-outline:hover { border-color: var(--orange); color: var(--orange); }
.cart-success .text-link { color: var(--muted); }

.toast {
  position: fixed;
  left: 50%; bottom: 28px;
  z-index: 300;
  max-width: calc(100% - 32px);
  padding: 11px 16px;
  border-left: 3px solid var(--orange);
  background: var(--ink);
  color: var(--white);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.24);
  font-size: 11px;
  line-height: 1.5;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 16px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}
.toast.is-show { opacity: 1; transform: translate(-50%, 0); }

.mobile-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 110;
  display: none;
  grid-template-columns: repeat(3, 1fr);
  background: rgba(9, 13, 17, 0.97);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-bottom: env(safe-area-inset-bottom);
  backdrop-filter: blur(12px);
}
.mobile-bar a,
.mobile-bar button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-height: 56px;
  border: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.09);
  background: transparent;
  color: rgba(255, 255, 255, 0.78);
  font-size: 8.5px;
  cursor: pointer;
}
.mobile-bar > :last-child { border-right: 0; }
.mobile-bar .icon { width: 17px; height: 17px; color: var(--orange); }
.mobile-bar b {
  display: inline-grid;
  place-items: center;
  min-width: 14px; height: 14px;
  margin-left: 3px;
  border-radius: 50%;
  background: var(--orange);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 7px;
}

/* -------------------------------- 动效 ---------------------------------- */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
.js .reveal.is-visible { opacity: 1; transform: none; }

.noscript {
  position: fixed;
  left: 16px; right: 16px; bottom: 74px;
  z-index: 500;
  padding: 12px 16px;
  background: #7c2f13;
  color: var(--white);
  font-size: 11px;
  line-height: 1.6;
}

/* ------------------------------- 响应式 --------------------------------- */
@media (max-width: 1180px) {
  .hero-inner { gap: 28px; }
  .hero h1 { font-size: clamp(3.4rem, 7.2vw, 6.4rem); }
  .hero-panel { max-width: 330px; }
  .business-grid { gap: 11px; }
  .biz-card { padding: 21px; min-height: 465px; }
  .biz-body h3 { font-size: 27px; }
  .parts-layout { gap: 48px; }
  .about-grid { gap: 52px; }
  .contact-grid { gap: 48px; }
  .footer-top { gap: 30px; }
}

@media (max-width: 1200px) {
  .header-phone { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-video { display: none; }
}

@media (max-width: 900px) {
  .time-window { display: none; }
}

@media (min-width: 901px) {
  .hero-copy > .eyebrow { display: none; }
}

@media (max-width: 1080px) {
  :root { --header-h: 76px; }
  .main-nav {
    position: fixed;
    inset: 0;
    z-index: 98;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0;
    padding: calc(108px + var(--lang-banner-h)) 32px 36px;
    background: #0b1015;
    transform: translateX(100%);
    transition: transform 0.45s var(--ease);
    overflow-y: auto;
  }
  .nav-open .main-nav { transform: none; }
  .main-nav a {
    width: 100%;
    padding: 18px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.76);
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 700;
    letter-spacing: 0.02em;
  }
  .main-nav a::after { display: none; }
  .main-nav a:hover,
  .main-nav a.is-active { color: var(--orange); }
  .nav-toggle { display: block; z-index: 101; }
  .header-phone { display: none; }
  .lang-banner-copy > span:last-child { display: none; }
  .lang-banner-secondary { display: none; }
  .hero-inner { grid-template-columns: 1fr; padding-bottom: 140px; }
  .hero-panel { display: none; }
  .hero-copy { max-width: 800px; }
  .hero h1 { font-size: clamp(3.4rem, 9vw, 6.2rem); }
  .section-head { grid-template-columns: 1fr; gap: 22px; align-items: start; }
  .section-intro { max-width: 620px; }
  .section-head-with-tools { align-items: start; }
  .head-tools { width: 100%; }
  .business-grid { grid-template-columns: repeat(3, 1fr); }
  .compliance-grid { grid-template-columns: 1fr; gap: 32px; }
  .compliance-card { max-width: 620px; }
  .biz-card { min-height: 440px; }
  .rental-grid { grid-template-columns: repeat(2, 1fr); }
  .materials-layout { grid-template-columns: 1fr; gap: 30px; }
  .materials-aside { position: static; display: grid; grid-template-columns: auto 1fr; gap: 4px 24px; align-items: end; }
  .aside-label { grid-column: 1 / -1; }
  .big-number { grid-row: 2 / 4; margin: 8px 0 0; font-size: 86px; }
  .aside-note { max-width: 420px; margin-top: 8px; }
  .materials-aside .text-link { grid-column: 2; justify-self: start; margin-top: 10px; }
  .aside-fine { grid-column: 2; }
  .parts-layout { grid-template-columns: 1fr; gap: 34px; }
  .part-brands-wrap, .part-systems { grid-column: 1; }
  .parts-copy { position: static; }
  .part-systems { grid-template-columns: repeat(3, 1fr); }
  .part-card { grid-template-columns: 40px 1fr; }
  .part-card > .icon { display: none; }
  .why-grid { grid-template-columns: repeat(3, 1fr); }
  .process-track { grid-template-columns: repeat(3, 1fr); }
  .process-step:nth-child(3) { border-right: 0; }
  .process-step:nth-child(n+4) { border-top: 1px solid var(--line); padding-top: 24px; }
  .process-step:nth-child(n+4)::before { top: -5px; }
  .about-grid { grid-template-columns: 1fr; gap: 38px; }
  .about-media { max-width: 620px; }
  .faq-layout { grid-template-columns: 1fr; gap: 32px; }
  .faq-intro { position: static; }
  .contact-grid { grid-template-columns: 1fr; gap: 34px; }
  .contact-card { max-width: 620px; }
  .footer-top { grid-template-columns: 1.4fr 0.8fr 0.8fr; }
  .footer-contact { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 6px 22px; align-items: center; }
  .footer-contact h4 { width: 100%; margin-bottom: 5px; }
  .footer-contact a, .footer-contact p { margin: 0; }
  .footer-inquiry { margin-top: 0 !important; }
}

@media (max-width: 820px) {
  .container { width: min(calc(100% - 36px), var(--container)); }
  .section { padding: 70px 0; }
  .hero { display: block; min-height: 0; height: auto; padding-bottom: calc(56px + env(safe-area-inset-bottom)); }
  .hero-inner { padding-top: calc(120px + var(--lang-banner-h)); padding-bottom: 34px; }
  .hero h1 { font-size: clamp(3rem, 11vw, 5rem); }
  .hero-sub { font-size: 13px; gap: 7px; }
  .hero-desc { font-size: 12.5px; }
  .hero-trust { gap: 8px 16px; }
  .hero-stats { position: relative; margin-top: 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat { padding: 14px 15px; border-left: 1px solid rgba(255, 255, 255, 0.13); }
  .stat:nth-child(odd) { border-left: 0; padding-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid rgba(255, 255, 255, 0.13); }
  .stat strong { font-size: 31px; }
  .business-grid { grid-template-columns: 1fr; }
  .biz-card { min-height: 390px; }
  .biz-art { height: 125px; }
  .biz-art svg { width: 116px; height: 80px; }
  .rental-grid { grid-template-columns: 1fr; }
  .equip-card { min-height: auto; }
  .inline-cta { flex-direction: column; align-items: flex-start; gap: 18px; }
  .material-row { grid-template-columns: 34px minmax(0, 1fr) 20px; gap: 12px; }
  .material-spec { display: none; }
  .part-systems { grid-template-columns: repeat(2, 1fr); }
  .proc-head { flex-direction: column; align-items: flex-start; gap: 18px; }
  .proc-summary { width: 100%; justify-content: space-between; }
  .proc-toolbar { flex-direction: column; align-items: stretch; gap: 14px; }
  .search-field { min-width: 0; width: 100%; }
  .proc-toolbar .filter-tabs { width: 100%; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .why-banner { grid-template-columns: repeat(2, 1fr); }
  .why-banner > div:nth-child(2) { border-right: 0; }
  .why-banner > div:nth-child(n+3) { border-top: 1px solid rgba(14, 18, 22, 0.2); }
  .process-track { grid-template-columns: repeat(2, 1fr); }
  .process-step:nth-child(3) { border-right: 1px solid var(--line); }
  .process-step:nth-child(even) { border-right: 0; }
  .process-step:nth-child(n+3) { border-top: 1px solid var(--line); padding-top: 24px; }
  .about-values > div { flex-direction: column; gap: 2px; align-items: flex-start; }
  .faq-item summary { font-size: 14px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .contact-card { padding: 20px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-contact { display: block; }
  .footer-contact h4 { margin-bottom: 14px; }
  .footer-contact a, .footer-contact p { margin-bottom: 8px; }
  .mobile-bar { display: grid; }
  .site-footer { padding-bottom: calc(74px + env(safe-area-inset-bottom)); }
  .cart-fab { bottom: 70px; right: 14px; }
  .toast { bottom: 76px; }
  .drawer { width: 100%; }
}

@media (max-width: 600px) {
  .container { width: calc(100% - 32px); }
  .brand-mark { width: 36px; height: 36px; }
  .brand-type strong { font-size: 18px; }
  .brand-type small { font-size: 7px; }
  .header-actions { gap: 10px; }
  .header-actions .btn { display: none; }
  .lang-banner-inner { gap: 8px; }
  .lang-banner-copy { gap: 6px; }
  .lang-banner-copy strong { font-size: 8px; letter-spacing: 0.06em; }
  .lang-banner-primary { padding: 4px 7px; font-size: 8.5px; }
  .lang-banner-close { width: 22px; }
  .hero { min-height: 640px; }
  .hero-inner { padding-top: calc(104px + var(--lang-banner-h)); }
  .hero h1 { font-size: clamp(2.85rem, 13.5vw, 4.4rem); }
  .hero h1 br { display: block; }
  .hero-sub { font-size: 11.5px; line-height: 1.8; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .hero-trust { display: grid; grid-template-columns: 1fr; gap: 7px; }
  .hero-stats { margin-top: 24px; }
  .stat { gap: 8px; }
  .stat strong { font-size: 27px; }
  .stat > span { font-size: 8px; }
  .section { padding: 58px 0; }
  h2 { font-size: clamp(2.1rem, 9vw, 3.2rem); }
  .section-head { margin-bottom: 34px; }
  .section-intro { font-size: 12px; padding-left: 14px; }
  .biz-card { min-height: 360px; padding: 19px; }
  .biz-body h3 { font-size: 25px; }
  .biz-art { height: 115px; }
  .equip-art { height: 130px; }
  .equip-card h3 { font-size: 22px; }
  .inline-cta { padding: 22px 19px; }
  .inline-cta .btn { width: 100%; }
  .materials-aside { grid-template-columns: 1fr; }
  .big-number { grid-row: auto; font-size: 76px; margin: 8px 0 12px; }
  .aside-note { margin-top: 0; }
  .materials-aside .text-link, .aside-fine { grid-column: 1; }
  .material-name { font-size: 19px; }
  .material-name small { display: none; }
  .part-systems { grid-template-columns: 1fr; }
  .part-brands { grid-template-columns: repeat(2, 1fr); }
  .part-card { grid-template-columns: 44px 1fr 16px; }
  .part-card > .icon { display: block; }
  .proc-meta { flex-direction: column; align-items: flex-start; gap: 4px; }
  .product-grid { grid-template-columns: 1fr; }
  .product-card { min-height: auto; }
  .product-art { height: 66px; }
  .why-grid { grid-template-columns: 1fr; }
  .why-item { min-height: auto; padding: 22px; }
  .why-banner { grid-template-columns: 1fr 1fr; }
  .why-banner > div { padding: 16px; flex-direction: column; gap: 4px; align-items: flex-start; }
  .why-banner strong { font-size: 30px; }
  .process-track { grid-template-columns: 1fr; }
  .process-step { border-right: 0 !important; border-top: 1px solid var(--line); padding: 22px 0 22px 18px; min-height: auto; }
  .process-step:first-child { border-top: 0; }
  .process-step::before { top: 0; left: 0; }
  .process-step p { max-width: none; }
  .about-media { padding: 0 12px 12px 0; }
  .about-media::before { top: 12px; left: 12px; }
  .about-media figcaption { right: 12px; font-size: 7px; padding: 10px 12px; }
  .about-badge { padding: 9px 11px; }
  .about-badge strong { font-size: 30px; }
  .about-values { grid-template-columns: 1fr; }
  .about-values > div:nth-child(odd) { padding-right: 0; }
  .about-values > div:nth-child(even) { padding-left: 0; border-left: 0; }
  .faq-answer { padding-right: 6px; }
  .contact-copy h2 { font-size: clamp(2.5rem, 10vw, 3.6rem); }
  .contact-list li { padding: 11px 0; }
  .contact-card { padding: 16px; }
  .form-head h3 { font-size: 24px; }
  .success-actions { flex-direction: column; }
  .success-actions .btn { width: 100%; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .drawer-body { padding: 16px 15px 26px; }
  .drawer-head { padding: 17px 16px; }
  .cart-item { grid-template-columns: 44px minmax(0, 1fr) auto; gap: 9px; }
  .cart-item-art { width: 44px; height: 44px; }
  .cart-item-art svg { width: 30px; height: 30px; }
  .cart-item-name { font-size: 12px; }
  .cart-item-side { gap: 1px; }
}

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

/* --------------------------------- 打印 --------------------------------- */
@media print {
  .site-header,
  .hero,
  .capability-marquee,
  main > section:not(.contact),
  .site-footer,
  .cart-fab,
  .drawer-overlay,
  .drawer,
  .toast,
  .mobile-bar { display: none !important; }
  body { background: #fff; color: #000; padding: 0; }
  .contact { background: #fff; color: #000; padding: 0; }
  .contact-bg, .contact-card, .contact-form { display: none !important; }
  .contact-grid { display: block; }
  .contact-copy h2 { color: #000; }
  .contact-list strong, .contact-list small { color: #000; }
}