/* ==========================================================================
   江阴市驰诺机械制造有限公司 — 官网样式
   Design: industrial / precision / powder-equipment
   ========================================================================== */

:root {
  --ink: #0b1622;
  --ink-2: #22303d;
  --navy: #0a1a29;
  --navy-2: #0e2337;
  --steel: #163a57;
  --orange: #f36a21;
  --orange-deep: #d9530f;
  --orange-soft: #fff0e7;
  --amber: #ffb464;
  --paper: #f4f6f8;
  --paper-2: #eef1f4;
  --white: #ffffff;
  --muted: #64737f;
  --muted-dark: #93a3b1;
  --line: rgba(11, 22, 34, 0.1);
  --line-strong: rgba(11, 22, 34, 0.16);
  --line-dark: rgba(255, 255, 255, 0.12);
  --shadow-sm: 0 2px 8px rgba(11, 22, 34, 0.05);
  --shadow-md: 0 18px 48px -18px rgba(11, 22, 34, 0.22);
  --shadow-lg: 0 40px 90px -30px rgba(11, 22, 34, 0.4);
  --radius: 18px;
  --radius-lg: 26px;
  --container: 1240px;
  --header-h: 76px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC",
    "Noto Sans SC", "WenQuanYi Micro Hei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-num: "Bahnschrift", "DIN Alternate", "DINCondensed", "Arial Narrow", "Helvetica Neue",
    Arial, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.is-locked {
  overflow: hidden;
}

h1,
h2,
h3,
h4,
p,
figure,
ul,
ol,
dl,
dd {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

img,
svg {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  border: 0;
  background: none;
  cursor: pointer;
}

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

/* ---------- helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  position: relative;
  padding: 104px 0;
}

.section--tight {
  padding: 78px 0;
}

.section--paper {
  background: var(--paper);
}

.section--dark {
  background: var(--navy);
  color: #fff;
}

.section--dark .sec-title,
.section--dark h3 {
  color: #fff;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--orange);
}

.eyebrow::before {
  content: "";
  width: 32px;
  height: 2px;
  background: var(--orange);
  flex: none;
}

.section--dark .eyebrow {
  color: var(--amber);
}

.section--dark .eyebrow::before {
  background: var(--amber);
}

.sec-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 56px;
}

.sec-head__main {
  max-width: 640px;
}

.sec-title {
  font-size: clamp(30px, 3.2vw, 44px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

.sec-desc {
  max-width: 460px;
  margin-top: 18px;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--muted);
}

.section--dark .sec-desc {
  color: var(--muted-dark);
}

.section--dark .sec-head__side {
  color: var(--muted-dark);
}

.sec-head__side {
  flex: none;
  max-width: 420px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
  padding-bottom: 6px;
}

.accent {
  color: var(--orange);
}

main section[id] {
  scroll-margin-top: calc(var(--header-h) + 12px);
}

.product.is-hidden {
  display: none;
}

/* ---------- buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 52px;
  padding: 0 28px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1;
  cursor: pointer;
  transition: transform 0.35s var(--ease), background 0.3s, color 0.3s, border-color 0.3s,
    box-shadow 0.35s;
  overflow: hidden;
}

.btn svg {
  width: 17px;
  height: 17px;
  flex: none;
  transition: transform 0.35s var(--ease);
}

.btn:hover svg {
  transform: translateX(4px);
}

.btn--primary {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 14px 30px -14px rgba(243, 106, 33, 0.75);
}

.btn--primary:hover {
  background: var(--orange-deep);
  transform: translateY(-2px);
  box-shadow: 0 20px 38px -14px rgba(243, 106, 33, 0.8);
}

.btn--ghost {
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(6px);
}

.btn--ghost:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

.btn--dark {
  background: var(--ink);
  color: #fff;
}

.btn--dark:hover {
  background: var(--steel);
  transform: translateY(-2px);
}

.btn--outline {
  border-color: var(--line-strong);
  color: var(--ink);
  background: #fff;
}

.btn--outline:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
}

.btn--sm {
  min-height: 44px;
  padding: 0 20px;
  font-size: 14px;
}

.btn--block {
  width: 100%;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.link-arrow svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s var(--ease);
}

.link-arrow:hover svg {
  transform: translateX(5px);
}

.link-arrow--light {
  color: #fff;
}

/* ---------- topbar ---------- */
.topbar {
  position: relative;
  z-index: 60;
  background: var(--navy);
  color: rgba(255, 255, 255, 0.72);
  font-size: 12.5px;
  letter-spacing: 0.02em;
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 40px;
}

.topbar__left,
.topbar__right {
  display: flex;
  align-items: center;
  gap: 18px;
}

.topbar__left span:last-child {
  color: rgba(255, 255, 255, 0.5);
}

.topbar__tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--amber);
  font-weight: 600;
}

.topbar__tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(243, 106, 33, 0.22);
}

.topbar a {
  transition: color 0.25s;
}

.topbar a:hover {
  color: #fff;
}

.topbar__phone {
  font-family: var(--font-num);
  font-size: 13.5px;
  letter-spacing: 0.08em;
  color: #fff;
  font-weight: 600;
}

.topbar__sep {
  width: 1px;
  height: 12px;
  background: rgba(255, 255, 255, 0.18);
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  transition: background 0.35s, box-shadow 0.35s, backdrop-filter 0.35s;
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  transition: background 0.35s;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px) saturate(1.1);
  box-shadow: 0 10px 30px -18px rgba(11, 22, 34, 0.28);
}

.site-header.is-scrolled::after {
  background: transparent;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  height: 100%;
}

/* brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.brand__mark {
  width: 42px;
  height: 42px;
  flex: none;
  transition: transform 0.5s var(--ease);
}

.brand:hover .brand__mark {
  transform: rotate(-6deg) scale(1.04);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand__text strong {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: #fff;
  transition: color 0.35s;
}

.brand__text small {
  margin-top: 3px;
  font-family: var(--font-num);
  font-size: 9.5px;
  letter-spacing: 0.28em;
  color: rgba(255, 255, 255, 0.55);
  transition: color 0.35s;
}

.site-header.is-scrolled .brand__text strong {
  color: var(--ink);
}

.site-header.is-scrolled .brand__text small {
  color: var(--muted);
}

/* nav */
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.main-nav a {
  position: relative;
  padding: 10px 16px;
  font-size: 14.5px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.76);
  border-radius: 999px;
  transition: color 0.25s, background 0.25s;
  white-space: nowrap;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 5px;
  height: 2px;
  background: var(--orange);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}

.main-nav a:hover,
.main-nav a.is-active {
  color: #fff;
}

.main-nav a:hover::after,
.main-nav a.is-active::after {
  transform: scaleX(1);
}

.site-header.is-scrolled .main-nav a {
  color: var(--muted);
}

.site-header.is-scrolled .main-nav a:hover,
.site-header.is-scrolled .main-nav a.is-active {
  color: var(--ink);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.header__actions .btn--ghost {
  border-color: rgba(255, 255, 255, 0.3);
  min-height: 42px;
  padding: 0 18px;
}

.site-header.is-scrolled .header__actions .btn--ghost {
  border-color: var(--line-strong);
  color: var(--ink);
  background: #fff;
}

/* burger */
.nav-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  flex: none;
}

.nav-toggle span {
  position: absolute;
  left: 12px;
  width: 20px;
  height: 1.8px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.35s var(--ease), opacity 0.25s, background 0.35s;
}

.nav-toggle span:nth-child(1) {
  top: 16px;
}
.nav-toggle span:nth-child(2) {
  top: 21.5px;
}
.nav-toggle span:nth-child(3) {
  top: 27px;
}

.site-header.is-scrolled .nav-toggle span {
  background: var(--ink);
}

body.nav-open .nav-toggle span {
  background: #fff;
}

body.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}

body.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

body.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

/* drawer */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 45;
  display: flex;
  flex-direction: column;
  padding: 118px 28px 40px;
  background: rgba(8, 19, 31, 0.97);
  backdrop-filter: blur(16px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s, visibility 0.35s;
  overflow-y: auto;
}

.drawer.is-open {
  opacity: 1;
  visibility: visible;
}

.drawer a.drawer__link {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 18px 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.4s, transform 0.4s, color 0.25s;
}

.drawer.is-open a.drawer__link {
  opacity: 1;
  transform: none;
}

.drawer a.drawer__link span {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--orange);
}

.drawer a.drawer__link:hover {
  color: var(--amber);
}

.drawer__foot {
  margin-top: auto;
  padding-top: 36px;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  line-height: 2;
}

.drawer__foot strong {
  display: block;
  font-family: var(--font-num);
  font-size: 24px;
  letter-spacing: 0.06em;
  color: #fff;
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  z-index: 1;
  margin-top: calc(-1 * var(--header-h));
  padding: calc(var(--header-h) + 84px) 0 0;
  background: #07121d;
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -3;
  background: radial-gradient(120% 90% at 78% 12%, rgba(243, 106, 33, 0.28), transparent 55%),
    radial-gradient(90% 80% at 8% 100%, rgba(22, 58, 87, 0.9), transparent 60%),
    linear-gradient(160deg, #0a1a29 0%, #07121d 60%, #050d15 100%);
}

.hero__grid {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image: linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 76px 76px;
  mask-image: radial-gradient(120% 100% at 60% 20%, #000 25%, transparent 85%);
  -webkit-mask-image: radial-gradient(120% 100% at 60% 20%, #000 25%, transparent 85%);
}

.hero__glow {
  position: absolute;
  z-index: -1;
  right: -160px;
  top: 40px;
  width: 640px;
  height: 640px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(243, 106, 33, 0.2), transparent 62%);
  filter: blur(10px);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  align-items: center;
  gap: 64px;
  padding-top: 34px;
  padding-bottom: 96px;
}

.hero__content {
  max-width: 640px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  padding: 8px 16px 8px 10px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(6px);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.82);
}

.hero__badge i {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--orange);
  font-style: normal;
}

.hero__badge svg {
  width: 12px;
  height: 12px;
}

.hero h1 {
  font-size: clamp(40px, 5.2vw, 68px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.hero h1 em {
  position: relative;
  font-style: normal;
  color: var(--amber);
  white-space: nowrap;
}

.hero h1 em::after {
  content: "";
  position: absolute;
  left: 2px;
  right: 2px;
  bottom: 0.08em;
  height: 0.09em;
  background: linear-gradient(90deg, var(--orange), rgba(243, 106, 33, 0));
  border-radius: 2px;
}

.hero__lead {
  max-width: 540px;
  margin-top: 28px;
  font-size: 16.5px;
  line-height: 1.95;
  color: rgba(255, 255, 255, 0.69);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 40px;
}

.hero__points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 46px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 13px;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.6);
}

.hero__points li {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.hero__points li::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--orange);
  transform: rotate(45deg);
  flex: none;
}

/* hero visual */
.hero__visual {
  position: relative;
}

.hero__frame {
  position: relative;
  aspect-ratio: 4 / 4.45;
  max-height: 610px;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: linear-gradient(150deg, #163249, #0b1c2b 60%);
  box-shadow: 0 50px 100px -40px rgba(0, 0, 0, 0.85);
}

.hero__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 72%;
  transition: transform 1.2s var(--ease), opacity 0.6s;
}

.hero__frame:hover img {
  transform: scale(1.04);
}

.hero__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 18, 29, 0) 30%, rgba(7, 18, 29, 0.85) 100%);
  pointer-events: none;
}

.hero__frame-empty {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  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: 44px 44px;
}

.hero__frame-empty svg {
  width: 60%;
  height: auto;
  opacity: 0.5;
}

.hero__frame.no-img img {
  display: none;
}

.hero__frame.no-img .hero__frame-empty {
  display: grid;
}

.hero__frame-tag {
  position: absolute;
  z-index: 2;
  left: 22px;
  bottom: 22px;
  right: 22px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}

.hero__frame-tag b {
  display: block;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.hero__frame-tag span {
  display: block;
  margin-top: 4px;
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted-dark);
}

.hero__frame-tag i {
  display: grid;
  place-items: center;
  flex: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(6px);
}

.hero__frame-tag svg {
  width: 17px;
  height: 17px;
}

/* floating mini cards */
.hero__chip {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 13px 18px 13px 13px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.96);
  color: var(--ink);
  box-shadow: var(--shadow-lg);
  animation: floaty 7s ease-in-out infinite;
}

.hero__chip i {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: var(--orange-soft);
  color: var(--orange);
  flex: none;
}

.hero__chip svg {
  width: 19px;
  height: 19px;
}

.hero__chip b {
  display: block;
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1.3;
}

.hero__chip span {
  display: block;
  margin-top: 2px;
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero__chip--a {
  left: -34px;
  top: 14%;
}

.hero__chip--b {
  right: -26px;
  bottom: 19%;
  animation-delay: -2.4s;
}

@keyframes floaty {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-9px);
  }
}

/* hero ticker */
.hero__ticker {
  position: relative;
  display: flex;
  overflow: hidden;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.025);
  padding: 16px 0;
  user-select: none;
}

.hero__ticker-track {
  display: flex;
  flex: none;
  align-items: center;
  gap: 34px;
  padding-right: 34px;
  animation: marquee 36s linear infinite;
}

.hero__ticker-track span {
  display: inline-flex;
  align-items: center;
  gap: 34px;
  font-family: var(--font-num);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.42);
  white-space: nowrap;
}

.hero__ticker-track span::after {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--orange);
  transform: rotate(45deg);
  opacity: 0.9;
}

@keyframes marquee {
  to {
    transform: translateX(-100%);
  }
}

/* ---------- stats ---------- */
.stats {
  position: relative;
  z-index: 5;
  margin-top: -54px;
}

.stats__panel {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  border: 1px solid var(--line);
}

.stat {
  position: relative;
  padding: 34px 30px 30px;
}

.stat + .stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 26%;
  height: 48%;
  width: 1px;
  background: var(--line);
}

.stat__num {
  display: flex;
  align-items: baseline;
  gap: 3px;
  font-family: var(--font-num);
  font-size: clamp(34px, 3.4vw, 46px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--ink);
}

.stat__num small {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0;
}

.stat__label {
  margin-top: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-2);
}

.stat__note {
  margin-top: 3px;
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- advantages ---------- */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.adv {
  position: relative;
  padding: 34px 30px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s, border-color 0.4s;
}

.adv::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, var(--orange), rgba(243, 106, 33, 0));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}

.adv:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

.adv:hover::before {
  transform: scaleX(1);
}

.adv__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.adv__icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--paper);
  color: var(--ink);
  transition: background 0.35s, color 0.35s;
}

.adv:hover .adv__icon {
  background: var(--orange-soft);
  color: var(--orange);
}

.adv__icon svg {
  width: 25px;
  height: 25px;
}

.adv__no {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: rgba(11, 22, 34, 0.22);
}

.adv h3 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.adv p {
  margin-top: 12px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- products ---------- */
.section--dark {
  background: linear-gradient(180deg, #0a1a29 0%, #071320 100%);
}

.section--dark .sec-head__side {
  color: var(--muted-dark);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.filter {
  padding: 10px 22px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.66);
  transition: background 0.3s, color 0.3s, border-color 0.3s;
}

.filter:hover {
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}

.filter.is-active {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.product {
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.035);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.45s var(--ease), border-color 0.4s, background 0.4s;
  text-align: left;
  color: #fff;
}

.product:hover {
  transform: translateY(-6px);
  border-color: rgba(243, 106, 33, 0.55);
  background: rgba(255, 255, 255, 0.055);
}

.product__media {
  position: relative;
  aspect-ratio: 16 / 11;
  overflow: hidden;
  background: linear-gradient(150deg, #14304a, #0a1b2a);
}

.product__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease), opacity 0.5s;
}

.product:hover .product__media img {
  transform: scale(1.06);
}

.product__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 19, 31, 0) 45%, rgba(7, 19, 31, 0.55));
  pointer-events: none;
}

.product__media.no-img img {
  display: none;
}

.product__media.no-img {
  background-image: radial-gradient(circle at 70% 30%, rgba(243, 106, 33, 0.18), transparent 55%),
    linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(150deg, #14304a, #0a1b2a);
  background-size: auto, 34px 34px, 34px 34px, auto;
}

.product__media-icon {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  color: rgba(255, 255, 255, 0.55);
}

.product__media.no-img .product__media-icon {
  display: grid;
}

.product__media-icon svg {
  width: 64px;
  height: 64px;
}

.product__cat {
  position: absolute;
  z-index: 2;
  left: 16px;
  top: 16px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(7, 19, 31, 0.62);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(6px);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.88);
}

.product__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 22px 24px 24px;
}

.product__en {
  font-family: var(--font-num);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--orange);
}

.product h3 {
  margin-top: 8px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.product p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.58);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 20px;
}

.product__more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.3s;
}

.product:hover .product__more {
  color: var(--amber);
}

.product__more svg {
  width: 15px;
  height: 15px;
  transition: transform 0.3s var(--ease);
}

.product:hover .product__more svg {
  transform: translateX(4px);
}

.product__no {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.25);
}

/* ---------- industries ---------- */
.ind-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.ind {
  position: relative;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(160deg, #14304a, #0a1a29);
  color: #fff;
  isolation: isolate;
}

.ind__img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease), opacity 0.6s;
}

.ind:hover .ind__img {
  transform: scale(1.07);
}

.ind::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(7, 19, 31, 0.15) 0%, rgba(7, 19, 31, 0.82) 72%, #07131f 100%);
}

.ind__no {
  position: absolute;
  top: 22px;
  right: 24px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.45);
}

.ind__icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  border-radius: 13px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.08);
  color: var(--amber);
  backdrop-filter: blur(6px);
}

.ind__icon svg {
  width: 23px;
  height: 23px;
}

.ind h3 {
  font-size: 21px;
  font-weight: 700;
}

.ind p {
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.62);
}

.ind__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 16px;
}

.ind__tags span {
  padding: 4px 10px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.66);
}

/* ---------- process ---------- */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 12px;
}

.step {
  position: relative;
  padding: 0 34px 0 0;
}

.step:last-child {
  padding-right: 0;
}

.step__top {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 26px;
}

.step__no {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  flex: none;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  font-family: var(--font-num);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  background: #fff;
  transition: background 0.35s, color 0.35s, border-color 0.35s;
}

.step:hover .step__no {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
}

.step__line {
  flex: 1;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--line-strong) 0 6px, transparent 6px 12px);
}

.step:last-child .step__line {
  display: none;
}

.step h3 {
  font-size: 18px;
  font-weight: 700;
}

.step p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
}

/* ---------- about ---------- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: 72px;
  align-items: center;
}

.about-media {
  position: relative;
}

.about-media__main {
  position: relative;
  aspect-ratio: 4 / 4.6;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(150deg, var(--paper-2), #dfe5ea);
}

.about-media__main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s var(--ease);
}

.about-media:hover .about-media__main img {
  transform: scale(1.04);
}

.about-media__main.no-img {
  background-image: linear-gradient(rgba(11, 22, 34, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 22, 34, 0.05) 1px, transparent 1px),
    linear-gradient(150deg, #eef1f4, #dbe2e8);
  background-size: 40px 40px, 40px 40px, auto;
}

.about-media__main.no-img img {
  display: none;
}

.about-media__sub {
  position: absolute;
  right: -34px;
  bottom: 42px;
  width: 240px;
  aspect-ratio: 4 / 3;
  border-radius: 18px;
  object-fit: cover;
  border: 6px solid #fff;
  box-shadow: var(--shadow-md);
  background: var(--paper-2);
}

.about-badge {
  position: absolute;
  left: -26px;
  top: 38px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border-radius: 16px;
  background: var(--navy);
  color: #fff;
  box-shadow: var(--shadow-lg);
}

.about-badge b {
  font-family: var(--font-num);
  font-size: 30px;
  line-height: 1;
  letter-spacing: 0.01em;
}

.about-badge span {
  max-width: 90px;
  font-size: 11.5px;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.62);
}

.about-copy .sec-title {
  max-width: 520px;
}

.about-copy p.lead {
  margin-top: 24px;
  font-size: 16px;
  line-height: 2;
  color: var(--ink-2);
}

.about-copy p.body {
  margin-top: 16px;
  font-size: 14.5px;
  line-height: 2;
  color: var(--muted);
}

.fact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin-top: 34px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}

.fact {
  padding: 18px 20px;
  background: #fff;
}

.fact dt {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.fact dd {
  margin-top: 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.fact dd.is-small {
  font-size: 13.5px;
  font-weight: 500;
  line-height: 1.7;
}

.about-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: linear-gradient(115deg, #f36a21 0%, #e8560f 58%, #c8450a 100%);
  padding: 58px 56px;
  color: #fff;
  isolation: isolate;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(rgba(255, 255, 255, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.09) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(90% 120% at 100% 0%, #000 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(90% 120% at 100% 0%, #000 0%, transparent 70%);
}

.cta-band__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.cta-band h2 {
  max-width: 640px;
  font-size: clamp(26px, 2.8vw, 38px);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.cta-band p {
  max-width: 560px;
  margin-top: 14px;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.82);
}

.cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex: none;
}

.cta-band .btn--light {
  background: #fff;
  color: var(--orange-deep);
}

.cta-band .btn--light:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px -16px rgba(0, 0, 0, 0.4);
}

.cta-band .btn--line {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

.cta-band .btn--line:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

/* ---------- contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 28px;
  align-items: stretch;
}

.contact-card {
  position: relative;
  padding: 38px 36px;
  border-radius: var(--radius-lg);
  background: var(--navy);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}

.contact-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(90% 80% at 100% 0%, rgba(243, 106, 33, 0.24), transparent 60%);
}

.contact-card h3 {
  font-size: 22px;
  font-weight: 700;
}

.contact-card > p {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.62);
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 28px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  padding: 17px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-item i {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--amber);
}

.contact-item svg {
  width: 18px;
  height: 18px;
}

.contact-item dt {
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.45);
}

.contact-item dd {
  margin-top: 3px;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
}

.contact-item dd a {
  transition: color 0.25s;
}

.contact-item dd a:hover {
  color: var(--amber);
}

.contact-item dd small {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.45);
}

.contact-phone {
  font-family: var(--font-num);
  font-size: 28px !important;
  letter-spacing: 0.04em;
}

.contact-map {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 26px;
  padding: 12px 20px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
  transition: border-color 0.3s, background 0.3s, color 0.3s;
}

.contact-map:hover {
  border-color: var(--amber);
  color: var(--amber);
  background: rgba(255, 255, 255, 0.06);
}

.contact-map svg {
  width: 15px;
  height: 15px;
}

/* form */
.inquiry {
  padding: 38px 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.inquiry__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.inquiry h3 {
  font-size: 22px;
  font-weight: 700;
}

.inquiry__head p {
  margin-top: 8px;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.8;
}

.inquiry__tag {
  flex: none;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--orange-soft);
  color: var(--orange-deep);
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
}

.inquiry-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-2);
  letter-spacing: 0.02em;
}

.field label i {
  color: var(--orange);
  font-style: normal;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 11px;
  background: #fbfcfd;
  font-size: 14px;
  outline: none;
  transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
  color: var(--ink);
}

.field input::placeholder,
.field textarea::placeholder {
  color: #9aa7b1;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--orange);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(243, 106, 33, 0.12);
}

.field textarea {
  min-height: 96px;
  resize: vertical;
}

.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%2364737f' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 15px center;
  padding-right: 38px;
}

.form-note {
  grid-column: 1 / -1;
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

.form-note svg {
  width: 14px;
  height: 14px;
  flex: none;
  margin-top: 3px;
  color: var(--muted);
}

.inquiry-form .btn {
  grid-column: 1 / -1;
  margin-top: 4px;
}

.form-error {
  grid-column: 1 / -1;
  display: none;
  padding: 12px 15px;
  border-radius: 10px;
  background: #fff3f0;
  border: 1px solid #ffd5c9;
  color: #b23a17;
  font-size: 13px;
}

.form-error.is-visible {
  display: block;
}

.inquiry__success {
  display: none;
  padding: 26px;
  margin-top: 26px;
  border: 1px solid #cfe8d8;
  border-radius: 14px;
  background: #f4fbf6;
  text-align: center;
}

.inquiry__success.is-visible {
  display: block;
}

.inquiry__success svg {
  width: 34px;
  height: 34px;
  margin: 0 auto 12px;
  color: #1c8a4b;
}

.inquiry__success h4 {
  font-size: 17px;
  font-weight: 700;
}

.inquiry__success p {
  margin-top: 6px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.8;
}

.inquiry__success strong {
  color: var(--ink);
}

/* ---------- footer ---------- */
.footer {
  position: relative;
  overflow: hidden;
  padding: 78px 0 0;
  background: #06101a;
  color: rgba(255, 255, 255, 0.6);
}

.footer::before {
  content: "CHINUO";
  position: absolute;
  right: -10px;
  bottom: -40px;
  font-family: var(--font-num);
  font-size: clamp(120px, 20vw, 280px);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
  color: rgba(255, 255, 255, 0.025);
  pointer-events: none;
}

.footer__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr) minmax(0, 0.9fr) minmax(0, 1fr);
  gap: 56px;
  padding-bottom: 56px;
}

.footer .brand__text strong {
  color: #fff;
}

.footer .brand__text small {
  color: rgba(255, 255, 255, 0.45);
}

.footer__brand p {
  max-width: 330px;
  margin-top: 22px;
  font-size: 13.5px;
  line-height: 1.95;
}

.footer__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.footer__badges span {
  padding: 5px 11px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.55);
}

.footer__col h4 {
  margin-bottom: 20px;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.06em;
}

.footer__col li + li {
  margin-top: 11px;
}

.footer__col a,
.footer__col p {
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  transition: color 0.25s;
}

.footer__col a:hover {
  color: var(--amber);
}

.footer__contact strong {
  display: block;
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #fff;
}

.footer__contact p {
  margin-top: 10px;
}

.footer__bottom {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  padding: 22px 0 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
  font-size: 12px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.38);
}

.footer__bottom a {
  transition: color 0.25s;
}

.footer__bottom a:hover {
  color: rgba(255, 255, 255, 0.75);
}

.footer__legal {
  max-width: 720px;
}

.footer__legal span {
  display: block;
  margin-top: 4px;
}

/* ---------- dock ---------- */
.dock {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dock__btn {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  transition: transform 0.3s var(--ease), background 0.3s, color 0.3s, opacity 0.3s,
    visibility 0.3s;
}

.dock__btn svg {
  width: 19px;
  height: 19px;
}

.dock__btn:hover {
  transform: translateY(-3px);
  background: var(--ink);
  color: #fff;
}

.dock__btn--call {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
}

.dock__btn--call:hover {
  background: var(--orange-deep);
}

.dock__btn--top {
  opacity: 0;
  visibility: hidden;
}

.dock__btn--top.is-visible {
  opacity: 1;
  visibility: visible;
}

/* ---------- modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  background: rgba(4, 11, 18, 0.72);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s, visibility 0.35s;
}

.modal.is-open {
  opacity: 1;
  visibility: visible;
}

.modal__panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  grid-template-rows: minmax(0, 1fr);
  width: min(1040px, 100%);
  max-height: min(86vh, 720px);
  background: #fff;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transform: translateY(18px) scale(0.98);
  transition: transform 0.4s var(--ease);
}

.modal.is-open .modal__panel {
  transform: none;
}

.modal__media {
  position: relative;
  min-height: 0;
  background: linear-gradient(150deg, #14304a, #0a1a29);
}

.modal__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal__media.no-img img {
  display: none;
}

.modal__media.no-img {
  background-image: radial-gradient(circle at 65% 35%, rgba(243, 106, 33, 0.24), transparent 55%),
    linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(150deg, #14304a, #0a1a29);
  background-size: auto, 36px 36px, 36px 36px, auto;
}

.modal__media-icon {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  color: rgba(255, 255, 255, 0.5);
}

.modal__media.no-img .modal__media-icon {
  display: grid;
}

.modal__media-icon svg {
  width: 84px;
  height: 84px;
}

.modal__media-cat {
  position: absolute;
  left: 22px;
  top: 22px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(7, 19, 31, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(6px);
  font-size: 12px;
  color: #fff;
}

.modal__body {
  min-height: 0;
  padding: 40px 40px 36px;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(243, 106, 33, 0.6) transparent;
}

.modal__body::-webkit-scrollbar {
  width: 8px;
}

.modal__body::-webkit-scrollbar-track {
  background: transparent;
}

.modal__body::-webkit-scrollbar-thumb {
  background: rgba(243, 106, 33, 0.5);
  border-radius: 8px;
}

.modal__body::-webkit-scrollbar-thumb:hover {
  background: rgba(243, 106, 33, 0.75);
}

.modal__en {
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--orange);
}

.modal__body h3 {
  margin-top: 8px;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.modal__tagline {
  margin-top: 6px;
  font-size: 14px;
  color: var(--muted);
}

.modal__desc {
  margin-top: 18px;
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--ink-2);
}

.modal__block {
  margin-top: 24px;
}

.modal__block h4 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ink);
}

.modal__block h4::before {
  content: "";
  width: 4px;
  height: 13px;
  background: var(--orange);
  border-radius: 2px;
}

.modal__features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 18px;
  margin-top: 12px;
}

.modal__features li {
  position: relative;
  padding-left: 15px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.modal__features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--orange);
}

.modal__apps {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 12px;
}

.modal__apps span {
  padding: 5px 11px;
  border-radius: 999px;
  background: var(--paper);
  font-size: 12px;
  color: var(--ink-2);
}

.modal__specs {
  width: 100%;
  margin-top: 12px;
  border-collapse: collapse;
  font-size: 13px;
}

.modal__specs th,
.modal__specs td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.modal__specs th {
  width: 38%;
  font-weight: 500;
  color: var(--muted);
  background: #fafbfc;
}

.modal__specs td {
  color: var(--ink-2);
  font-weight: 500;
}

.modal__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.modal__close {
  position: absolute;
  right: 16px;
  top: 16px;
  z-index: 3;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
  transition: background 0.25s, transform 0.25s;
}

.modal__close:hover {
  background: #fff;
  transform: rotate(90deg);
}

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

.modal__panel:focus {
  outline: none;
}

.modal__close svg {
  width: 17px;
  height: 17px;
}

/* ---------- reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay: var(--d, 0s);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  z-index: 120;
  transform: translate(-50%, 16px);
  padding: 12px 22px;
  border-radius: 999px;
  background: rgba(11, 22, 34, 0.94);
  color: #fff;
  font-size: 13.5px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, transform 0.3s, visibility 0.3s;
  max-width: calc(100vw - 40px);
  text-align: center;
}

.toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

/* ---------- responsive ---------- */
@media (max-width: 1180px) {
  .hero__inner {
    gap: 40px;
  }

  .hero__chip--a {
    left: -14px;
  }

  .hero__chip--b {
    right: -10px;
  }

  .about-grid {
    gap: 52px;
  }
}

@media (max-width: 1080px) {
  .main-nav {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .header__actions .btn--ghost {
    display: none;
  }

  .hero {
    padding-top: calc(var(--header-h) + 48px);
  }

  .hero__inner {
    grid-template-columns: 1fr;
    gap: 56px;
    padding-top: 8px;
    padding-bottom: 80px;
  }

  .hero__content {
    max-width: 720px;
  }

  .hero__visual {
    max-width: 560px;
  }

  .hero__frame {
    aspect-ratio: 16 / 12;
    max-height: none;
  }

  .hero__visual {
    width: 100%;
  }

  .adv-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .ind-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 0;
  }

  .step:nth-child(2) .step__line {
    display: none;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 64px;
  }

  .about-media {
    max-width: 560px;
  }

  .about-media__main {
    aspect-ratio: 16 / 12;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 44px;
  }
}

@media (max-width: 860px) {
  .section {
    padding: 76px 0;
  }

  .sec-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 40px;
  }

  .sec-head__side {
    max-width: 560px;
    padding-bottom: 0;
  }

  .stats__panel {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat:nth-child(3)::before,
  .stat:nth-child(2)::before {
    display: none;
  }

  .stat:nth-child(1)::before,
  .stat:nth-child(2)::before {
    display: none;
  }

  .stat:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .cta-band {
    padding: 44px 34px;
  }

  .cta-band__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 30px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 14px;
  }

  .modal__panel {
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(0, 1fr);
    max-height: 90vh;
    overflow: hidden;
  }

  .modal__media {
    min-height: 0;
    aspect-ratio: 16 / 9;
  }

  .modal__body {
    min-height: 0;
    padding: 28px 26px 30px;
    overflow-y: auto;
  }

  .modal__scroll-hint {
    left: 50%;
  }

  .modal__media img {
    position: absolute;
    inset: 0;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 20px;
  }

  .topbar {
    display: none;
  }

  .hero {
    margin-top: calc(-1 * var(--header-h));
    padding-top: 0;
  }

  .hero__inner {
    padding-top: calc(var(--header-h) + 24px);
    padding-bottom: 56px;
    gap: 44px;
  }

  .hero h1 {
    font-size: clamp(34px, 9vw, 46px);
  }

  .hero__lead {
    font-size: 15px;
    margin-top: 22px;
  }

  .hero__actions {
    margin-top: 30px;
  }

  .hero__points {
    margin-top: 32px;
    padding-top: 20px;
    gap: 8px 18px;
    font-size: 12px;
  }

  .hero__chip {
    display: none;
  }

  .hero__frame {
    border-radius: 18px;
  }

  .stats {
    margin-top: -34px;
  }

  .stats__panel {
    border-radius: 18px;
  }

  .stat {
    padding: 22px 20px;
  }

  .adv-grid,
  .product-grid,
  .ind-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .adv {
    padding: 28px 24px;
  }

  .step {
    padding-right: 0;
  }

  .step__line {
    display: none;
  }

  .ind {
    min-height: 320px;
  }

  .inquiry,
  .contact-card {
    padding: 28px 24px;
  }

  .inquiry-form {
    grid-template-columns: 1fr;
  }

  .footer {
    padding-top: 60px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .about-media__sub {
    width: 170px;
    right: -10px;
    bottom: 20px;
  }

  .about-badge {
    left: -8px;
    top: 20px;
    padding: 13px 16px;
  }

  .about-badge b {
    font-size: 24px;
  }

  .fact-grid {
    grid-template-columns: 1fr;
  }

  .dock {
    right: 14px;
    bottom: 18px;
  }

  .modal {
    padding: 0;
    align-items: flex-end;
  }

  .modal__panel {
    border-radius: 22px 22px 0 0;
    max-height: 92vh;
  }

  .modal__features {
    grid-template-columns: 1fr;
  }

  .hero__badge {
    font-size: 11.5px;
  }
}

/* ---------- motion / print ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .topbar,
  .site-header,
  .dock,
  .hero__ticker,
  .modal,
  .toast,
  .drawer {
    display: none !important;
  }

  .hero {
    margin-top: 0;
    padding-top: 40px;
  }

  body {
    color: #000;
    background: #fff;
  }

  .section--dark {
    background: #fff;
    color: #000;
  }
}

/* ==========================================================================
   Additions: 整线横幅卡片 / 产品弹窗备注 / 小屏顶栏
   ========================================================================== */

/* ---------- 整线宽幅卡片 ---------- */
.line-band {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  width: 100%;
  margin-top: 24px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
  text-align: left;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.4s, background 0.4s, transform 0.45s var(--ease);
}

.line-band:hover {
  transform: translateY(-4px);
  border-color: rgba(243, 106, 33, 0.55);
  background: rgba(255, 255, 255, 0.06);
}

.line-band__media {
  position: relative;
  min-height: 330px;
  background: linear-gradient(150deg, #16324b, #0a1b2a);
  overflow: hidden;
}

.line-band__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.9s var(--ease);
}

.line-band:hover .line-band__media img {
  transform: scale(1.05);
}

.line-band__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 19, 31, 0) 55%, rgba(7, 19, 31, 0.55) 100%);
}

.line-band__media.no-img img {
  display: none;
}

.line-band__media.no-img {
  background-image: radial-gradient(circle at 70% 30%, rgba(243, 106, 33, 0.2), transparent 55%),
    linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(150deg, #14304a, #0a1b2a);
  background-size: auto, 36px 36px, 36px 36px, auto;
}

.line-band__media-icon {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  color: rgba(255, 255, 255, 0.5);
}

.line-band__media.no-img .line-band__media-icon {
  display: grid;
}

.line-band__media-icon svg {
  width: 72px;
  height: 72px;
}

.line-band__body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 44px 48px;
}

.line-band__en {
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--orange);
}

.line-band h3 {
  margin-top: 10px;
  font-size: clamp(23px, 2.4vw, 31px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.line-band p {
  max-width: 560px;
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.6);
}

.line-band__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.line-band__tags span {
  padding: 5px 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.68);
}

.line-band__more {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 26px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--amber);
}

.line-band__more svg {
  width: 15px;
  height: 15px;
  transition: transform 0.3s var(--ease);
}

.line-band:hover .line-band__more svg {
  transform: translateX(5px);
}

/* ---------- 产品弹窗备注 ---------- */
.modal__note {
  margin-top: 22px;
  padding: 11px 14px;
  border-left: 3px solid var(--orange);
  border-radius: 0 8px 8px 0;
  background: var(--orange-soft);
  font-size: 12.5px;
  line-height: 1.7;
  color: #8a4a22;
}

/* ---------- 小屏顶栏 ---------- */
@media (max-width: 980px) {
  .topbar__left span:last-child {
    display: none;
  }

  .topbar__right {
    gap: 13px;
  }
}

@media (max-width: 760px) {
  .topbar__right > span:not(.topbar__sep) {
    display: none;
  }

  .topbar__right .topbar__sep {
    display: none;
  }

  .topbar__phone {
    font-size: 12px;
    letter-spacing: 0.05em;
  }
}

@media (max-width: 1080px) {
  .line-band {
    grid-template-columns: 1fr;
  }

  .line-band__media {
    min-height: 260px;
    aspect-ratio: 16 / 9;
  }

  .line-band__body {
    padding: 34px 32px 38px;
  }
}

@media (max-width: 640px) {
  .line-band__body {
    padding: 28px 24px 32px;
  }

  .line-band__media {
    min-height: 200px;
  }

  .contact-phone {
    font-size: 24px !important;
  }
}

/* ---------- 弹窗滚动提示 ---------- */
.modal__scroll-hint {
  position: absolute;
  left: 73.75%;
  bottom: 18px;
  z-index: 4;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  border-radius: 999px;
  background: rgba(11, 22, 34, 0.82);
  color: #fff;
  font-size: 12px;
  letter-spacing: 0.03em;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, 8px);
  transition: opacity 0.35s, transform 0.35s;
  box-shadow: 0 10px 24px -12px rgba(0, 0, 0, 0.5);
}

.modal__scroll-hint.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.modal__scroll-hint svg {
  width: 13px;
  height: 13px;
  transform: rotate(180deg);
  color: var(--amber);
}

/* ==========================================================================
   Additions: 中药粉碎机刀盘细节 / 弹窗缩略图
   ========================================================================== */

/* ---------- 弹窗缩略图 ---------- */
.modal__thumbs {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 4;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.modal__thumbs:empty {
  display: none;
}

.modal__thumb {
  width: 56px;
  height: 56px;
  padding: 0;
  border-radius: 10px;
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.45);
  background: #0b1a29;
  cursor: pointer;
  transition: border-color 0.25s, transform 0.25s var(--ease);
}

.modal__thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal__thumb:hover {
  border-color: #fff;
  transform: translateY(-2px);
}

.modal__thumb.is-active {
  border-color: var(--orange);
}

/* ---------- 弹窗结构细节 ---------- */
.modal__detail-text {
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--muted);
}

.modal__detail-imgs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 12px;
}

.modal__detail-imgs figure {
  margin: 0;
}

.modal__detail-imgs img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid var(--line);
}

.modal__detail-imgs figcaption {
  margin-top: 6px;
  font-size: 11.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 设备细节区块 ---------- */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.detail-card {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  transition: transform 0.4s var(--ease), box-shadow 0.4s;
}

.detail-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.detail-card img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}

.detail-card:hover img {
  transform: scale(1.04);
}

.detail-card figcaption {
  padding: 20px 22px 24px;
}

.detail-card span {
  font-family: var(--font-num);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
}

.detail-card b {
  display: block;
  margin-top: 8px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.detail-card p {
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--muted);
}

.detail-note {
  margin-top: 20px;
  font-size: 12.5px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 1080px) {
  .detail-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .detail-card:first-child {
    grid-column: 1 / -1;
  }

  .detail-card:first-child img {
    aspect-ratio: 16 / 9;
  }
}

@media (max-width: 640px) {
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .detail-card:first-child img {
    aspect-ratio: 4 / 3;
  }

  .modal__thumb {
    width: 48px;
    height: 48px;
  }

  .modal__thumbs {
    left: 12px;
    right: 12px;
    bottom: 12px;
  }
}

/* ==========================================================================
   Motion & Smoothness — 动效与流畅度优化
   ========================================================================== */

:root {
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- 顶部阅读进度 ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 90;
  pointer-events: none;
}

.scroll-progress i {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--orange), var(--amber));
  box-shadow: 0 0 14px rgba(243, 106, 33, 0.5);
  will-change: transform;
}

/* ---------- 导航栏随滚动收放 ---------- */
.site-header {
  transition: background 0.35s, box-shadow 0.35s, backdrop-filter 0.35s,
    transform 0.5s var(--ease-out);
}

.site-header.is-hidden {
  transform: translate3d(0, -108%, 0);
}

/* ---------- 首屏入场 ---------- */
@keyframes heroUp {
  from {
    opacity: 0;
    transform: translate3d(0, 30px, 0);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes heroFrameIn {
  from {
    opacity: 0;
    transform: translate3d(0, 42px, 0) scale(0.985);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes underlineIn {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

@keyframes softFade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.hero__badge,
.hero h1,
.hero__lead,
.hero__actions,
.hero__points {
  animation: heroUp 1s var(--ease-out) both;
}

.hero__badge {
  animation-delay: 0.05s;
}

.hero h1 {
  animation-delay: 0.12s;
}

.hero__lead {
  animation-delay: 0.24s;
}

.hero__actions {
  animation-delay: 0.36s;
}

.hero__points {
  animation-delay: 0.48s;
}

.hero h1 em::after {
  transform: scaleX(0);
  transform-origin: left center;
  animation: underlineIn 0.9s var(--ease-out) 0.85s forwards;
}

.hero__frame {
  animation: heroFrameIn 1.15s var(--ease-out) 0.2s both;
  will-change: transform, opacity;
}

.hero__chip--a {
  animation: heroUp 0.85s var(--ease-out) 0.78s both, floaty 7s ease-in-out 1.7s infinite;
}

.hero__chip--b {
  animation: heroUp 0.85s var(--ease-out) 0.9s both, floaty 7s ease-in-out 1.9s infinite;
}

.hero__ticker {
  animation: softFade 0.9s var(--ease-out) 0.9s both;
}

/* 视差图层，只做 transform，避免重排 */
.hero__grid,
.hero__glow {
  will-change: transform;
}

/* ---------- 跑马灯：悬停暂停 ---------- */
.hero__ticker-track {
  will-change: transform;
}

.hero__ticker:hover .hero__ticker-track {
  animation-play-state: paused;
}

/* ---------- 滚动揭示微调 ---------- */
.reveal {
  transform: translate3d(0, 30px, 0);
  transition: opacity 0.75s var(--ease-out), transform 0.75s var(--ease-out);
}

.reveal.is-in {
  transform: translate3d(0, 0, 0);
}

.adv-grid .reveal:nth-child(2),
.product-grid .reveal:nth-child(2),
.ind-grid .reveal:nth-child(2),
.detail-grid .reveal:nth-child(2) {
  transition-delay: 0.06s;
}

.adv-grid .reveal:nth-child(3),
.product-grid .reveal:nth-child(3),
.ind-grid .reveal:nth-child(3),
.detail-grid .reveal:nth-child(3) {
  transition-delay: 0.12s;
}

.adv-grid .reveal:nth-child(4),
.product-grid .reveal:nth-child(4),
.ind-grid .reveal:nth-child(4) {
  transition-delay: 0.18s;
}

.adv-grid .reveal:nth-child(5),
.product-grid .reveal:nth-child(5) {
  transition-delay: 0.24s;
}

.adv-grid .reveal:nth-child(6),
.product-grid .reveal:nth-child(6) {
  transition-delay: 0.3s;
}

/* ---------- 按钮微交互 ---------- */
.btn {
  transition: transform 0.32s var(--ease-out), background 0.3s, color 0.3s,
    border-color 0.3s, box-shadow 0.35s;
}

.btn:active {
  transform: translateY(0) scale(0.985);
}

.btn--primary::before {
  content: "";
  position: absolute;
  top: -20%;
  bottom: -20%;
  left: 0;
  width: 45%;
  background: linear-gradient(
    105deg,
    transparent 0%,
    rgba(255, 255, 255, 0.32) 50%,
    transparent 100%
  );
  transform: translateX(-180%) skewX(-14deg);
  transition: transform 0.75s var(--ease-out);
  pointer-events: none;
}

.btn--primary:hover::before {
  transform: translateX(320%) skewX(-14deg);
}

/* ---------- 卡片 / 筛选微交互 ---------- */
.filter {
  transition: background 0.3s, color 0.3s, border-color 0.3s, transform 0.3s var(--ease-out);
}

.filter:hover {
  transform: translateY(-1px);
}

.adv__icon {
  transition: background 0.35s, color 0.35s, transform 0.45s var(--ease-out);
}

.adv:hover .adv__icon {
  transform: rotate(-6deg) scale(1.06);
}

.product__cat {
  transition: background 0.3s, border-color 0.3s;
}

.detail-card {
  transition: transform 0.45s var(--ease-out), box-shadow 0.45s, border-color 0.45s;
}

/* ---------- 图片渐显 ---------- */
.img-fade {
  opacity: 0;
  transform: scale(1.015);
  transition: opacity 0.7s var(--ease-out), transform 0.9s var(--ease-out);
  will-change: opacity, transform;
}

.img-fade.is-loaded {
  opacity: 1;
  transform: none;
}

/* ---------- 弹窗开合 ---------- */
.modal.is-closing {
  opacity: 0;
}

.modal.is-closing .modal__panel {
  transform: translate3d(0, 16px, 0) scale(0.985);
  transition-duration: 0.28s;
}

.modal__media img {
  transition: opacity 0.28s ease;
}

/* ---------- 移动端抽屉交错出现 ---------- */
.drawer.is-open a.drawer__link:nth-child(1) {
  transition-delay: 0.05s;
}

.drawer.is-open a.drawer__link:nth-child(2) {
  transition-delay: 0.1s;
}

.drawer.is-open a.drawer__link:nth-child(3) {
  transition-delay: 0.15s;
}

.drawer.is-open a.drawer__link:nth-child(4) {
  transition-delay: 0.2s;
}

.drawer.is-open a.drawer__link:nth-child(5) {
  transition-delay: 0.25s;
}

/* ---------- 数字不抖动 ---------- */
.stat__num,
.contact-phone {
  font-variant-numeric: tabular-nums;
}

/* ---------- 键盘可达性 ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .hero__badge,
  .hero h1,
  .hero__lead,
  .hero__actions,
  .hero__points,
  .hero__frame,
  .hero__chip--a,
  .hero__chip--b,
  .hero__ticker {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .hero h1 em::after {
    transform: none !important;
  }

  .img-fade {
    opacity: 1 !important;
    transform: none !important;
  }

  .site-header.is-hidden {
    transform: none !important;
  }
}

/* ==========================================================================
   Contact: 到厂与导航卡（替换原在线留言）
   ========================================================================== */

.visit-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 38px 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.visit-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.visit-card h3 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.visit-card__head p {
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.visit-card__tag {
  flex: none;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--orange-soft);
  color: var(--orange-deep);
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
}

.visit-list {
  display: flex;
  flex-direction: column;
  margin-top: 26px;
}

.visit-list > div {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
}

.visit-list > div:last-child {
  border-bottom: 1px solid var(--line);
}

.visit-list dt {
  flex: none;
  width: 74px;
  padding-top: 2px;
  font-size: 12.5px;
  color: var(--muted);
}

.visit-list dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--ink);
  text-align: right;
}

.visit-list dd small {
  display: block;
  margin-top: 3px;
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
}

.visit-map {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 50px;
  margin-top: 26px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  transition: background 0.3s, border-color 0.3s, color 0.3s, transform 0.3s var(--ease-out);
}

.visit-map svg {
  width: 16px;
  height: 16px;
}

.visit-map:hover {
  transform: translateY(-2px);
  background: var(--orange-soft);
  border-color: rgba(243, 106, 33, 0.4);
  color: var(--orange-deep);
}

.visit-note {
  margin-top: auto;
  padding-top: 20px;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

@media (max-width: 640px) {
  .visit-card {
    padding: 28px 24px;
  }

  .visit-list > div {
    flex-direction: column;
    gap: 5px;
  }

  .visit-list dt {
    width: auto;
  }

  .visit-list dd {
    font-size: 14px;
    text-align: left;
  }
}

/* ==========================================================================
   Mobile Experience — 手机端体验优化
   ========================================================================== */

a,
button,
.filter,
.product,
.detail-card {
  touch-action: manipulation;
}

html {
  -webkit-tap-highlight-color: transparent;
}

body {
  -webkit-tap-highlight-color: transparent;
}

/* 移动端快捷联系栏（默认隐藏） */
.mobile-cta {
  display: none;
}

.swipe-hint {
  display: none;
}

/* ---------- 手机端 ---------- */
@media (max-width: 640px) {
  :root {
    --header-h: 68px;
  }

  html {
    scroll-padding-bottom: 92px;
  }

  .site-header .brand__mark {
    width: 38px;
    height: 38px;
  }

  .site-header .brand__text strong {
    font-size: 18px;
  }

  .site-header .brand__text small {
    font-size: 9px;
  }

  .site-header .header__actions .btn--sm {
    min-height: 42px;
    padding: 0 16px;
    font-size: 13.5px;
  }

  .site-header .nav-toggle {
    width: 42px;
    height: 42px;
  }

  /* 首屏 */
  .hero__inner {
    gap: 36px;
    padding-top: calc(var(--header-h) + 22px);
    padding-bottom: 46px;
  }

  .hero__badge {
    padding: 7px 13px 7px 8px;
    font-size: 11px;
    margin-bottom: 20px;
  }

  .hero h1 {
    font-size: clamp(33px, 8.8vw, 40px);
    line-height: 1.16;
  }

  .hero__lead {
    margin-top: 18px;
    font-size: 14.5px;
    line-height: 1.85;
  }

  .hero__actions {
    margin-top: 26px;
    gap: 10px;
  }

  .hero__actions .btn {
    flex: 1 1 100%;
    width: 100%;
  }

  .hero__points {
    margin-top: 26px;
    padding-top: 18px;
    gap: 8px 16px;
    font-size: 11.5px;
  }

  .hero__frame {
    aspect-ratio: 16 / 10.5;
    border-radius: 16px;
  }

  .hero__ticker {
    padding: 12px 0;
  }

  .hero__ticker-track {
    gap: 24px;
    padding-right: 24px;
  }

  .hero__ticker-track span {
    gap: 24px;
    font-size: 10.5px;
    letter-spacing: 0.18em;
  }

  /* 数据 */
  .stats {
    margin-top: -26px;
  }

  .stat {
    padding: 20px 18px;
  }

  .stat__num {
    font-size: 32px;
  }

  .stat__num small {
    font-size: 13px;
  }

  .stat__label {
    margin-top: 8px;
    font-size: 13px;
  }

  .stat__note {
    font-size: 9px;
    letter-spacing: 0.14em;
  }

  /* 版块节奏 */
  .section {
    padding: 60px 0;
  }

  .section--tight {
    padding: 46px 0;
  }

  .sec-head {
    gap: 14px;
    margin-bottom: 32px;
  }

  .eyebrow {
    margin-bottom: 16px;
    font-size: 11px;
  }

  .sec-title {
    font-size: 28px;
    line-height: 1.28;
  }

  .sec-desc {
    margin-top: 14px;
    font-size: 14.5px;
    line-height: 1.85;
  }

  .sec-head__side {
    font-size: 13.5px;
    line-height: 1.8;
  }

  /* 核心优势 */
  .adv {
    padding: 24px 22px;
  }

  .adv__top {
    margin-bottom: 18px;
  }

  .adv__icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
  }

  .adv__icon svg {
    width: 22px;
    height: 22px;
  }

  .adv h3 {
    font-size: 17.5px;
  }

  .adv p {
    margin-top: 9px;
    font-size: 13.5px;
    line-height: 1.85;
  }

  /* 筛选 */
  .filters {
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 8px;
    margin: 0 -20px 26px;
    padding: 2px 20px 4px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .filters::-webkit-scrollbar {
    display: none;
  }

  .filter {
    flex: none;
    padding: 11px 18px;
    font-size: 13px;
  }

  /* 产品：横滑卡片 */
  .product-grid {
    display: flex;
    gap: 14px;
    overflow-x: auto;
    margin: 0 -20px;
    padding: 2px 20px 10px;
    scroll-snap-type: x mandatory;
    scroll-padding-left: 20px;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .product-grid::-webkit-scrollbar {
    display: none;
  }

  .product {
    flex: 0 0 82%;
    scroll-snap-align: start;
  }

  .product__media {
    aspect-ratio: 16 / 10;
  }

  .product__body {
    padding: 18px 20px 20px;
  }

  .product h3 {
    margin-top: 6px;
    font-size: 18px;
  }

  .product p {
    margin-top: 8px;
    font-size: 13px;
    line-height: 1.8;
  }

  .product__foot {
    padding-top: 16px;
  }

  .swipe-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    margin-top: 4px;
    font-size: 11.5px;
    letter-spacing: 0.06em;
    color: var(--muted);
  }

  .swipe-hint svg {
    width: 13px;
    height: 13px;
    opacity: 0.7;
  }

  .swipe-hint--dark {
    color: rgba(255, 255, 255, 0.42);
  }

  /* 整线卡片 */
  .line-band {
    margin-top: 20px;
  }

  .line-band__media {
    min-height: 0;
    aspect-ratio: 16 / 10;
  }

  .line-band__body {
    padding: 24px 22px 26px;
  }

  .line-band h3 {
    font-size: 22px;
  }

  .line-band p {
    font-size: 13px;
    line-height: 1.85;
  }

  .line-band__more {
    margin-top: 18px;
  }

  /* 行业应用 */
  .ind-grid {
    gap: 14px;
  }

  .ind {
    min-height: 290px;
    padding: 22px;
  }

  .ind h3 {
    font-size: 19px;
  }

  .ind p {
    font-size: 13px;
  }

  .ind__tags {
    margin-top: 14px;
  }

  /* 流程 */
  .process-grid {
    gap: 26px;
  }

  .step__top {
    margin-bottom: 18px;
  }

  .step__no {
    width: 48px;
    height: 48px;
    font-size: 15px;
  }

  .step h3 {
    font-size: 17px;
  }

  .step p {
    margin-top: 8px;
    font-size: 13.5px;
  }

  /* 刀盘细节：横滑 */
  .detail-grid {
    display: flex;
    gap: 14px;
    overflow-x: auto;
    margin: 0 -20px;
    padding: 2px 20px 10px;
    scroll-snap-type: x mandatory;
    scroll-padding-left: 20px;
    overscroll-behavior-x: contain;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .detail-grid::-webkit-scrollbar {
    display: none;
  }

  .detail-card {
    flex: 0 0 82%;
    scroll-snap-align: start;
  }

  .detail-card figcaption {
    padding: 16px 18px 20px;
  }

  .detail-card b {
    margin-top: 6px;
    font-size: 16.5px;
  }

  .detail-card p {
    font-size: 13px;
  }

  .detail-note {
    margin-top: 14px;
    font-size: 11.5px;
    text-align: left;
  }

  /* 关于我们 */
  .about-grid {
    gap: 36px;
  }

  .about-media__main {
    aspect-ratio: 4 / 3;
  }

  .about-media__sub {
    width: 148px;
    right: -2px;
    bottom: 14px;
    border-width: 4px;
    border-radius: 14px;
  }

  .about-badge {
    left: -4px;
    top: 14px;
    padding: 12px 15px;
    border-radius: 13px;
  }

  .about-badge b {
    font-size: 24px;
  }

  .about-badge span {
    font-size: 10.5px;
    max-width: 82px;
  }

  .about-copy p.lead {
    margin-top: 18px;
    font-size: 15px;
    line-height: 1.9;
  }

  .about-copy p.body {
    margin-top: 12px;
    font-size: 13.5px;
    line-height: 1.9;
  }

  .fact-grid {
    margin-top: 26px;
  }

  .fact {
    padding: 15px 18px;
  }

  .fact dd {
    font-size: 14px;
  }

  .about-actions {
    gap: 10px;
    margin-top: 26px;
  }

  .about-actions .btn {
    flex: 1 1 100%;
  }

  /* CTA 横幅 */
  .cta-band {
    padding: 30px 22px;
    border-radius: 20px;
  }

  .cta-band h2 {
    font-size: 23px;
    line-height: 1.38;
  }

  .cta-band p {
    margin-top: 12px;
    font-size: 13.5px;
  }

  .cta-band__inner {
    gap: 24px;
  }

  .cta-band__actions {
    width: 100%;
    flex-direction: column;
  }

  .cta-band__actions .btn {
    width: 100%;
  }

  /* 联系 */
  .contact-card,
  .visit-card {
    padding: 24px 22px;
  }

  .contact-card h3,
  .visit-card h3 {
    font-size: 20px;
  }

  .contact-item {
    padding: 15px 0;
    gap: 13px;
  }

  .contact-item i {
    width: 38px;
    height: 38px;
  }

  .contact-phone {
    font-size: 24px !important;
  }

  .visit-list {
    margin-top: 20px;
  }

  .visit-map {
    margin-top: 20px;
    min-height: 48px;
  }

  .visit-note {
    padding-top: 16px;
    font-size: 12px;
  }

  /* 页脚 */
  .footer {
    padding-top: 48px;
  }

  .footer__grid {
    gap: 28px;
    padding-bottom: 36px;
  }

  .footer__bottom {
    padding-bottom: calc(82px + env(safe-area-inset-bottom));
    font-size: 11px;
  }

  /* 底部快捷栏 */
  .mobile-cta {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 44;
    display: flex;
    gap: 10px;
    padding: 10px 14px calc(10px + env(safe-area-inset-bottom));
    background: rgba(255, 255, 255, 0.96);
    border-top: 1px solid var(--line);
    box-shadow: 0 -14px 34px -20px rgba(11, 22, 34, 0.35);
    backdrop-filter: blur(14px);
    transition: transform 0.35s var(--ease-out), opacity 0.3s;
  }

  .mobile-cta.is-hidden {
    transform: translate3d(0, 110%, 0);
    opacity: 0;
    pointer-events: none;
  }

  .mobile-cta__call {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 52px;
    border-radius: 13px;
    background: var(--orange);
    color: #fff;
    box-shadow: 0 12px 24px -14px rgba(243, 106, 33, 0.8);
  }

  .mobile-cta__call svg {
    width: 19px;
    height: 19px;
    flex: none;
  }

  .mobile-cta__call span {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
    text-align: left;
  }

  .mobile-cta__call b {
    font-size: 14px;
    font-weight: 600;
  }

  .mobile-cta__call small {
    margin-top: 2px;
    font-family: var(--font-num);
    font-size: 12.5px;
    letter-spacing: 0.04em;
    opacity: 0.92;
  }

  .mobile-cta__products {
    flex: none;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0 18px;
    border: 1px solid var(--line-strong);
    border-radius: 13px;
    background: #fff;
    color: var(--ink);
    font-size: 14px;
    font-weight: 600;
  }

  .dock {
    bottom: calc(86px + env(safe-area-inset-bottom));
  }

  .dock__btn--call {
    display: none;
  }

  .dock__btn {
    width: 44px;
    height: 44px;
  }

  /* 弹窗 */
  .modal__panel {
    border-radius: 20px 20px 0 0;
    max-height: 94vh;
  }

  .modal__media {
    aspect-ratio: 16 / 10;
  }

  .modal__body {
    padding: 22px 20px 24px;
  }

  .modal__body h3 {
    font-size: 23px;
  }

  .modal__desc {
    font-size: 13.5px;
    line-height: 1.9;
  }

  .modal__thumb {
    width: 44px;
    height: 44px;
    border-radius: 8px;
  }

  .modal__features li {
    font-size: 13px;
  }

  .modal__specs th,
  .modal__specs td {
    padding: 9px 10px;
    font-size: 12.5px;
  }

  .modal__actions {
    gap: 10px;
  }

  .modal__actions .btn {
    flex: 1 1 100%;
  }

  .modal__scroll-hint {
    bottom: 10px;
    padding: 8px 13px;
    font-size: 11px;
  }

  .modal__close {
    width: 38px;
    height: 38px;
    right: 12px;
    top: 12px;
  }

  /* 抽屉 */
  .drawer {
    padding: calc(var(--header-h) + 26px) 20px calc(28px + env(safe-area-inset-bottom));
  }

  .drawer a.drawer__link {
    font-size: 21px;
    padding: 16px 2px;
  }

  /* 开关 */
  .btn {
    min-height: 50px;
  }

  .btn--sm {
    min-height: 42px;
  }
}

@media (max-width: 380px) {
  .hero h1 {
    font-size: 32px;
  }

  .product,
  .detail-card {
    flex-basis: 88%;
  }

  .contact-phone {
    font-size: 21px !important;
  }

  .mobile-cta__products {
    padding: 0 14px;
    font-size: 13.5px;
  }
}

/* 触屏设备：用 :active 代替 hover 反馈 */
@media (hover: none) {
  .btn--primary:hover,
  .btn--ghost:hover,
  .btn--dark:hover,
  .btn--outline:hover {
    transform: none;
  }

  .product:active,
  .detail-card:active,
  .adv:active {
    transform: scale(0.99);
  }

  .mobile-cta__call:active,
  .mobile-cta__products:active {
    transform: scale(0.98);
  }
}

/* 触控目标尺寸补强（手机） */
@media (max-width: 640px) {
  .contact-phone a {
    display: inline-block;
    padding: 4px 0;
    line-height: 1.25;
  }

  .filter {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .brand {
    min-height: 44px;
  }
}

/* 手机端细节修正 */
@media (max-width: 860px) {
  /* 只让弹窗主图绝对定位，避免缩略图被撑满 */
  .modal__media > img {
    position: absolute;
    inset: 0;
  }

  .modal__thumb {
    position: relative;
  }

  .modal__thumb img {
    position: static;
    inset: auto;
  }
}

@media (max-width: 640px) {
  .modal__scroll-hint {
    left: 50%;
  }

  #contact .sec-head__side {
    display: none;
  }

  .contact-phone a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0;
  }

  .dock__btn--top {
    width: 40px;
    height: 40px;
    background: rgba(11, 22, 34, 0.78);
    border-color: transparent;
    color: #fff;
    backdrop-filter: blur(8px);
  }
}

/* 手机底部栏：产品中心 + 返回顶部 */
@media (max-width: 640px) {
  .mobile-cta__top {
    flex: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    min-height: 52px;
    border: 1px solid var(--line-strong);
    border-radius: 13px;
    background: #fff;
    color: var(--ink);
  }

  .mobile-cta__top svg {
    width: 18px;
    height: 18px;
  }

  .dock {
    display: none;
  }
}

/* 小屏（≤380px）底部栏收紧，避免横向溢出 */
@media (max-width: 380px) {
  .mobile-cta {
    gap: 8px;
    padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
  }

  .mobile-cta__call {
    min-width: 0;
    gap: 8px;
  }

  .mobile-cta__call b {
    font-size: 13px;
  }

  .mobile-cta__call small {
    font-size: 11.5px;
  }

  .mobile-cta__products {
    padding: 0 12px;
    font-size: 13px;
  }

  .mobile-cta__top {
    width: 46px;
    min-height: 48px;
  }

  .mobile-cta__top svg {
    width: 16px;
    height: 16px;
  }
}

/* 手机端刀盘卡片：统一图片比例，横滑时更整齐 */
@media (max-width: 640px) {
  .detail-card img {
    aspect-ratio: 4 / 3;
  }
}

/* ==========================================================================
   Mixer Series — 混合机系列图集与参数
   ========================================================================== */

.mixer-features {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 62px;
}

.mixer-feature {
  padding: 26px 24px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.mixer-feature span {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.mixer-feature h3 {
  margin-top: 10px;
  font-size: 17px;
  font-weight: 700;
}

.mixer-feature p {
  margin-top: 8px;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--muted);
}

.mixer-group {
  margin-top: 58px;
}

.mixer-group:first-of-type {
  margin-top: 0;
}

.mixer-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.mixer-group__head h3 {
  font-size: clamp(21px, 2vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.mixer-group__head h3 span {
  margin-left: 12px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.mixer-group__head p {
  max-width: 520px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
  text-align: right;
}

.mixer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.mixer-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 900px;
}

.mixer-photo {
  display: flex;
  flex-direction: column;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  background: #fff;
  text-align: left;
  cursor: zoom-in;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s, border-color 0.4s;
}

.mixer-photo:hover {
  transform: translateY(-4px);
  border-color: rgba(243, 106, 33, 0.35);
  box-shadow: var(--shadow-md);
}

.mixer-photo__media {
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--paper);
}

.mixer-photo__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease-out);
}

.mixer-photo:hover .mixer-photo__media img {
  transform: scale(1.05);
}

.mixer-photo__body {
  display: flex;
  flex-direction: column;
  padding: 16px 18px 18px;
}

.mixer-photo__tag {
  align-self: flex-start;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--orange-soft);
  color: var(--orange-deep);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.mixer-photo__body b {
  margin-top: 8px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
}

.mixer-photo__body small {
  margin-top: 3px;
  font-size: 12px;
  color: var(--muted);
}

/* 参数表 */
.mixer-spec {
  margin-top: 66px;
  padding: 34px 34px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper);
}

.mixer-spec__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
}

.mixer-spec__head h3 {
  font-size: 22px;
  font-weight: 800;
}

.mixer-spec__head p {
  font-size: 12.5px;
  color: var(--muted);
}

.mixer-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.mixer-table {
  width: 100%;
  min-width: 980px;
  border-collapse: collapse;
  font-size: 12.5px;
}

.mixer-table th,
.mixer-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: center;
  white-space: nowrap;
}

.mixer-table thead th {
  background: var(--navy);
  color: #fff;
  font-family: var(--font-num);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.mixer-table tbody th {
  position: sticky;
  left: 0;
  z-index: 2;
  background: #fafbfc;
  text-align: left;
  font-weight: 600;
  color: var(--ink-2);
}

.mixer-table tbody tr:last-child th,
.mixer-table tbody tr:last-child td {
  border-bottom: 0;
}

.mixer-table tbody tr:nth-child(even) td {
  background: #fbfcfd;
}

.mixer-spec__notes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px 26px;
  margin-top: 20px;
}

.mixer-spec__notes p {
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

.mixer-spec__notes b {
  color: var(--ink-2);
}

/* 弹窗图集入口 */
.modal__extra-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
  padding: 13px 16px;
  border: 1px dashed rgba(243, 106, 33, 0.45);
  border-radius: 11px;
  background: var(--orange-soft);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--orange-deep);
  transition: background 0.3s, border-color 0.3s, transform 0.3s;
}

.modal__extra-link:hover {
  background: #ffe7d8;
  border-color: var(--orange);
  transform: translateY(-1px);
}

.modal__extra-link svg {
  width: 15px;
  height: 15px;
}

.modal__extra-link[hidden] {
  display: none;
}

/* 图片灯箱 */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 140;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 13, 21, 0.9);
  backdrop-filter: blur(6px);
}

.lightbox__figure {
  position: relative;
  z-index: 2;
  margin: 0;
  max-width: 92vw;
  text-align: center;
}

.lightbox__figure img {
  display: block;
  max-width: 88vw;
  max-height: 78vh;
  margin: 0 auto;
  border-radius: 14px;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.8);
  object-fit: contain;
}

.lightbox__figure figcaption {
  margin-top: 16px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.82);
  letter-spacing: 0.02em;
}

.lightbox__close,
.lightbox__nav {
  position: absolute;
  z-index: 3;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #fff;
  transition: background 0.3s, transform 0.3s;
}

.lightbox__close:hover,
.lightbox__nav:hover {
  background: rgba(255, 255, 255, 0.2);
}

.lightbox__close {
  top: 22px;
  right: 22px;
  width: 44px;
  height: 44px;
}

.lightbox__nav {
  top: 50%;
  width: 48px;
  height: 48px;
  transform: translateY(-50%);
}

.lightbox__nav svg {
  width: 20px;
  height: 20px;
}

.lightbox__nav--prev {
  left: 26px;
}

.lightbox__nav--prev svg {
  transform: rotate(180deg);
}

.lightbox__nav--next {
  right: 26px;
}

.lightbox__close svg {
  width: 18px;
  height: 18px;
}

@media (max-width: 1080px) {
  .mixer-features {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mixer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mixer-group__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .mixer-group__head p {
    text-align: left;
  }

  .mixer-spec__notes {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .mixer-features {
    gap: 12px;
    margin-bottom: 44px;
  }

  .mixer-feature {
    padding: 20px 18px;
  }

  .mixer-feature h3 {
    font-size: 15.5px;
  }

  .mixer-feature p {
    font-size: 12.5px;
  }

  .mixer-group {
    margin-top: 44px;
  }

  .mixer-group__head {
    margin-bottom: 16px;
    padding-bottom: 12px;
  }

  .mixer-group__head h3 {
    font-size: 20px;
  }

  .mixer-group__head h3 span {
    display: block;
    margin: 4px 0 0;
    font-size: 11px;
  }

  .mixer-group__head p {
    font-size: 12.5px;
  }

  .mixer-grid,
  .mixer-grid--two {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    max-width: none;
  }

  .mixer-photo {
    border-radius: 12px;
  }

  .mixer-photo__body {
    padding: 12px 12px 14px;
  }

  .mixer-photo__tag {
    padding: 2px 7px;
    font-size: 9.5px;
  }

  .mixer-photo__body b {
    margin-top: 6px;
    font-size: 13px;
    line-height: 1.4;
  }

  .mixer-photo__body small {
    font-size: 10.5px;
    line-height: 1.4;
  }

  .mixer-spec {
    margin-top: 44px;
    padding: 22px 18px 20px;
    border-radius: 18px;
  }

  .mixer-spec__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    margin-bottom: 16px;
  }

  .mixer-spec__head h3 {
    font-size: 19px;
  }

  .mixer-table {
    min-width: 860px;
    font-size: 11.5px;
  }

  .mixer-table th,
  .mixer-table td {
    padding: 10px 11px;
  }

  .lightbox {
    padding: 0;
  }

  .lightbox__figure img {
    max-width: 94vw;
    max-height: 72vh;
    border-radius: 10px;
  }

  .lightbox__figure figcaption {
    padding: 0 20px;
    font-size: 13px;
  }

  .lightbox__close {
    top: 14px;
    right: 14px;
    width: 40px;
    height: 40px;
  }

  .lightbox__nav {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.16);
  }

  .lightbox__nav--prev {
    left: 10px;
  }

  .lightbox__nav--next {
    right: 10px;
  }
}