/* =========================================================
   南京亿光通讯技术有限公司 · 官网
   设计关键词：光链路 / 工程感 / 克制 / 本地化服务
   ========================================================= */

:root {
  --ink: #08232c;
  --ink-deep: #051921;
  --ink-soft: #163a44;
  --paper: #f3f1ea;
  --paper-soft: #f8f6f0;
  --surface: #ffffff;
  --mist: #e9f0ee;
  --line: rgba(8, 35, 44, 0.13);
  --line-strong: rgba(8, 35, 44, 0.22);
  --line-light: rgba(218, 247, 249, 0.15);
  --muted: #62777d;
  --muted-dark: #45626a;
  --muted-light: #9cb4b8;
  --accent: #82ebf2;
  --accent-bright: #b0f8fc;
  --accent-mid: #31c7d4;
  --accent-ink: #0b707b;
  --green: #1d9c77;
  --green-soft: #e3f4ec;
  --amber: #a96819;
  --amber-soft: #f8eedc;
  --red: #a94b3c;
  --red-soft: #f6e5e1;
  --gold: #e9b66e;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", system-ui, sans-serif;
  --font-serif: "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", "SimSun", serif;
  --font-mono: "SFMono-Regular", "Roboto Mono", "Cascadia Code", Consolas, "Liberation Mono", monospace;
  --shell: min(1240px, calc(100vw - 88px));
  --radius-sm: 3px;
  --radius-md: 8px;
  --shadow-card: 0 24px 70px rgba(5, 25, 33, 0.08);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::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-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.chat-locked {
  overflow: hidden;
}

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

img,
svg {
  display: block;
}

img {
  max-width: 100%;
}

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

button {
  cursor: pointer;
}

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

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

ul,
ol,
dl,
dd {
  margin: 0;
  padding: 0;
}

ul,
ol {
  list-style: none;
}

[hidden] {
  display: none !important;
}

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

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

.icon {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: none;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 999;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  transform: translateY(-150%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

/* ---------- 通用文字与按钮 ---------- */

.eyebrow {
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow-line {
  width: 28px;
  height: 1px;
  background: currentColor;
  opacity: 0.65;
  flex: none;
}

.eyebrow-light {
  color: #8fdde4;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 11px;
  min-height: 46px;
  padding: 0 21px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1;
  cursor: pointer;
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.25s var(--ease-out), box-shadow 0.25s ease;
}

.btn .icon {
  width: 17px;
  height: 17px;
  transition: transform 0.25s var(--ease-out);
}

.btn:hover .icon {
  transform: translate(2px, -2px);
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #06232b;
}

.btn-primary:hover {
  background: var(--accent-bright);
  border-color: var(--accent-bright);
  box-shadow: 0 10px 25px rgba(81, 209, 220, 0.18);
}

.btn-ghost {
  border-color: rgba(210, 242, 245, 0.25);
  color: #eaf9fa;
  background: rgba(255, 255, 255, 0.02);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(210, 242, 245, 0.45);
}

.btn-light {
  background: #eefafb;
  color: var(--ink);
  border-color: #eefafb;
}

.btn-light:hover {
  background: #fff;
  border-color: #fff;
}

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

.btn-outline:hover {
  border-color: var(--ink);
  background: rgba(8, 35, 44, 0.035);
}

.btn-lg {
  min-height: 52px;
  padding-inline: 26px;
  font-size: 14px;
}

.btn-sm {
  min-height: 39px;
  padding-inline: 15px;
  font-size: 12px;
}

.text-action {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--muted-dark);
  font-size: 12.5px;
}

.text-action span {
  color: var(--ink);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: border-color 0.2s ease;
}

.text-action .icon {
  width: 15px;
  height: 15px;
  transition: transform 0.25s var(--ease-out);
}

.text-action:hover span {
  border-color: var(--ink);
}

.text-action:hover .icon {
  transform: translateX(3px);
}

/* ---------- 顶部品牌与服务状态 ---------- */

.utility-bar {
  background: var(--ink-deep);
  color: rgba(226, 245, 246, 0.7);
}

.utility-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  min-height: 35px;
  font-size: 10.5px;
  letter-spacing: 0.035em;
}

.utility-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  white-space: nowrap;
}

.utility-pulse {
  position: relative;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(130, 235, 242, 0.08);
}

.utility-separator {
  color: rgba(226, 245, 246, 0.25);
}

.utility-secondary {
  color: rgba(226, 245, 246, 0.44);
}

.utility-right {
  display: flex;
  align-items: center;
  gap: 23px;
}

.utility-live,
.utility-hours,
.utility-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.utility-hours .icon {
  width: 12px;
  height: 12px;
  opacity: 0.65;
}

.utility-link {
  color: rgba(232, 249, 250, 0.88);
  transition: color 0.2s ease;
}

.utility-link .icon {
  width: 12px;
  height: 12px;
}

.utility-link:hover {
  color: var(--accent);
}

.live-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #73898d;
  flex: none;
  transition: background-color 0.25s ease, box-shadow 0.25s ease;
}

html[data-availability="online"] .live-dot {
  background: #67dfb8;
  box-shadow: 0 0 0 3px rgba(103, 223, 184, 0.11), 0 0 9px rgba(103, 223, 184, 0.45);
}

html[data-availability="away"] .live-dot {
  background: var(--gold);
}

.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(243, 241, 234, 0.91);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 42px;
  min-height: 80px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  flex: none;
  min-width: 0;
}

.brand-logo {
  width: 196px;
  height: 36px;
  object-fit: contain;
  object-position: left center;
  flex: none;
}

.brand-type {
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding-left: 13px;
  border-left: 1px solid var(--line);
}

.brand-name {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: 0.055em;
}

.brand-company {
  color: var(--muted);
  font-size: 8.5px;
  line-height: 1.5;
  letter-spacing: 0.025em;
  white-space: nowrap;
}

.desktop-nav {
  display: flex;
  align-items: stretch;
  gap: 32px;
  margin-left: auto;
  min-height: 80px;
}

.desktop-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  color: var(--ink-soft);
  font-size: 13px;
  white-space: nowrap;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 22px;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.28s var(--ease-out);
}

.desktop-nav a:hover::after,
.desktop-nav a.is-active::after {
  transform: scaleX(1);
  transform-origin: left center;
}

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

.nav-consult {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 39px;
  padding: 0 16px;
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: var(--radius-sm);
  color: #eefafb;
  font-size: 12px;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.nav-consult:hover {
  background: #0e3540;
  border-color: #0e3540;
}

.nav-consult .live-dot {
  background: #6f868b;
}

html[data-availability="online"] .nav-consult .live-dot {
  background: #6ce3bd;
}

.nav-consult-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 17px;
  height: 17px;
  padding: 0 4px;
  border-radius: 50px;
  background: var(--gold);
  color: #3a2509;
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 17px;
  text-align: center;
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: transparent;
}

.menu-toggle .icon {
  width: 20px;
  height: 20px;
}

.mobile-drawer {
  display: none;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 83% 34%, rgba(41, 157, 171, 0.24), transparent 44%),
    radial-gradient(ellipse at 10% 90%, rgba(28, 102, 118, 0.19), transparent 43%),
    linear-gradient(120deg, #061b24 0%, #061b24 48%, #08232d 100%);
  color: #f2fafb;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(173, 237, 241, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(173, 237, 241, 0.055) 1px, transparent 1px);
  background-size: 84px 84px;
  -webkit-mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.75), transparent 76%);
  mask-image: linear-gradient(90deg, rgba(0, 0, 0, 0.75), transparent 76%);
  opacity: 0.65;
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(10px);
}

.hero-orb-one {
  width: 600px;
  height: 600px;
  right: -250px;
  top: -260px;
  border: 1px solid rgba(134, 226, 235, 0.1);
}

.hero-orb-two {
  width: 390px;
  height: 390px;
  right: 4%;
  bottom: -250px;
  background: radial-gradient(circle, rgba(48, 184, 196, 0.14), transparent 68%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(430px, 0.97fr);
  align-items: center;
  gap: 46px;
  min-height: 628px;
  padding: 86px 0 48px;
}

.hero-copy {
  position: relative;
  z-index: 3;
  max-width: 630px;
  animation: hero-copy-in 0.9s var(--ease-out) both;
}

.hero-title {
  margin: 27px 0 27px;
  font-size: clamp(48px, 5.55vw, 79px);
  font-weight: 600;
  line-height: 1.13;
  letter-spacing: -0.048em;
}

.hero-title span {
  display: block;
}

.hero-title .accent-line {
  color: var(--accent);
  text-shadow: 0 0 50px rgba(89, 221, 230, 0.12);
}

.hero-lead {
  max-width: 540px;
  color: rgba(216, 237, 239, 0.72);
  font-size: 15.5px;
  line-height: 1.95;
  letter-spacing: 0.01em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  margin-top: 36px;
}

.hero-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 29px;
  color: rgba(197, 223, 226, 0.53);
  font-size: 10.5px;
  letter-spacing: 0.045em;
}

.note-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 19px;
  height: 19px;
  border: 1px solid rgba(131, 226, 234, 0.21);
  border-radius: 50%;
  color: #9de1e6;
}

.note-icon .icon {
  width: 10px;
  height: 10px;
}

.hero-visual {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  animation: hero-visual-in 1.2s 0.15s var(--ease-out) both;
}

.network-visual {
  position: relative;
  width: min(100%, 552px);
  aspect-ratio: 1;
}

.visual-halo {
  position: absolute;
  inset: 16%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(84, 217, 227, 0.14) 0%, rgba(58, 167, 181, 0.06) 40%, transparent 68%);
  filter: blur(10px);
}

.orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  pointer-events: none;
}

.orbit::after {
  content: "";
  position: absolute;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 13px rgba(130, 235, 242, 0.65);
}

.orbit-one {
  width: 55%;
  height: 55%;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(145, 226, 233, 0.13);
  animation: orbit-spin 36s linear infinite;
}

.orbit-one::after {
  top: 7%;
  left: 24%;
}

.orbit-two {
  width: 73%;
  height: 73%;
  transform: translate(-50%, -50%);
  border: 1px dashed rgba(145, 226, 233, 0.12);
  animation: orbit-spin-reverse 58s linear infinite;
}

.orbit-two::after {
  right: 10%;
  bottom: 21%;
  background: var(--gold);
  box-shadow: 0 0 13px rgba(233, 182, 110, 0.55);
}

.orbit-three {
  width: 91%;
  height: 91%;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(145, 226, 233, 0.065);
}

.orbit-three::before,
.orbit-three::after {
  content: "";
  position: absolute;
  border-radius: 50%;
}

.orbit-three::before {
  inset: 10%;
  border: 1px solid rgba(145, 226, 233, 0.04);
}

.orbit-three::after {
  width: 3px;
  height: 3px;
  top: 12%;
  left: 70%;
  background: rgba(207, 247, 249, 0.65);
  box-shadow: 0 0 10px rgba(207, 247, 249, 0.4);
}

.network-map {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.map-nodes {
  animation: map-twinkle 4.8s ease-in-out infinite;
}

.map-nodes-gold {
  animation-delay: 1.6s;
}

.trace-pulse {
  stroke-dasharray: 110 1100;
  animation: trace-travel 8s linear infinite;
  filter: drop-shadow(0 0 6px rgba(181, 249, 253, 0.65));
}

.visual-core {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 33.5%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid rgba(167, 238, 242, 0.22);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 40%, rgba(34, 93, 106, 0.7), rgba(6, 31, 41, 0.92) 66%),
    rgba(7, 30, 40, 0.82);
  box-shadow:
    inset 0 0 55px rgba(91, 211, 222, 0.09),
    0 0 70px rgba(48, 176, 189, 0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  text-align: center;
  animation: core-breathe 8s ease-in-out infinite;
}

.visual-core::before {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(159, 234, 239, 0.08);
  border-radius: 50%;
}

.core-top,
.core-coordinates {
  color: rgba(160, 210, 215, 0.52);
  font-family: var(--font-mono);
  font-size: 7.5px;
  letter-spacing: 0.18em;
  line-height: 1;
}

.core-title {
  margin: 3px 0 1px;
  color: #eefdfe;
  font-size: 25px;
  font-weight: 500;
  line-height: 1.23;
  letter-spacing: 0.03em;
}

.core-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: #8de5cd;
  font-size: 9px;
  letter-spacing: 0.08em;
}

.core-status i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #68dfb9;
  box-shadow: 0 0 7px rgba(104, 223, 185, 0.65);
}

.core-coordinates {
  margin-top: 6px;
  letter-spacing: 0.13em;
}

.visual-chip {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 128px;
  padding: 10px 13px;
  border: 1px solid rgba(179, 238, 242, 0.12);
  background: rgba(8, 36, 46, 0.7);
  box-shadow: 0 12px 36px rgba(2, 13, 18, 0.16);
  backdrop-filter: blur(9px);
  -webkit-backdrop-filter: blur(9px);
  animation: chip-float 7s ease-in-out infinite;
}

.visual-chip::before {
  content: "";
  position: absolute;
  top: 50%;
  width: 23px;
  height: 1px;
  background: linear-gradient(90deg, rgba(145, 232, 238, 0.5), transparent);
}

.chip-left {
  top: 21%;
  left: 0;
}

.chip-left::before {
  right: -23px;
}

.chip-right {
  top: 36%;
  right: 0;
  animation-delay: 1.4s;
}

.chip-right::before {
  left: -23px;
  transform: rotate(180deg);
}

.chip-bottom {
  bottom: 11%;
  left: 17%;
  animation-delay: 2.8s;
}

.chip-bottom::before {
  display: none;
}

.chip-index {
  color: rgba(139, 220, 226, 0.5);
  font-family: var(--font-mono);
  font-size: 8px;
  align-self: flex-start;
  padding-top: 2px;
}

.chip-copy {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.chip-copy strong {
  color: #e5fafb;
  font-size: 11.5px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.045em;
}

.chip-copy small {
  color: rgba(148, 194, 199, 0.43);
  font-family: var(--font-mono);
  font-size: 6.5px;
  line-height: 1.5;
  letter-spacing: 0.14em;
}

.visual-coordinate {
  position: absolute;
  top: 2.2%;
  right: 2%;
  color: rgba(175, 218, 222, 0.24);
  font-family: var(--font-mono);
  font-size: 7.5px;
  letter-spacing: 0.14em;
}

.visual-caption {
  position: absolute;
  left: 0;
  bottom: 0.8%;
  color: rgba(175, 218, 222, 0.25);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.17em;
}

.hero-foot {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  padding: 23px 0 34px;
  border-top: 1px solid var(--line-light);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 47px;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.hero-stat strong {
  color: rgba(238, 252, 253, 0.92);
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.035em;
}

.hero-stat span {
  color: rgba(173, 207, 212, 0.45);
  font-size: 9.5px;
  letter-spacing: 0.07em;
}

.hero-scroll {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: rgba(183, 220, 224, 0.43);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.12em;
  writing-mode: horizontal-tb;
}

.scroll-line {
  position: relative;
  width: 38px;
  height: 1px;
  background: rgba(186, 229, 233, 0.24);
  overflow: hidden;
}

.scroll-line::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 16px;
  background: var(--accent);
  animation: scroll-line 2.4s ease-in-out infinite;
}

/* ---------- 服务价值条 ---------- */

.values-section {
  position: relative;
  z-index: 4;
  background: var(--paper);
}

.value-band {
  position: relative;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: -34px;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}

.value-item {
  display: flex;
  gap: 14px;
  min-height: 138px;
  padding: 28px 24px 26px;
  border-left: 1px solid var(--line);
}

.value-item:first-child {
  border-left: 0;
}

.value-index {
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 8.5px;
  line-height: 1.8;
  letter-spacing: 0.08em;
  padding-top: 2px;
}

.value-item h2 {
  margin-bottom: 8px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.value-item p {
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.8;
  max-width: 205px;
}

/* ---------- 通用 Section ---------- */

.section {
  padding: 118px 0;
  scroll-margin-top: 82px;
}

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

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  align-items: end;
  gap: 66px;
  margin-bottom: 48px;
}

.section-heading h2 {
  margin-top: 17px;
  font-size: clamp(37px, 4.25vw, 54px);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: -0.045em;
}

.section-lead {
  justify-self: end;
  max-width: 338px;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.95;
}

/* ---------- 产品库存 ---------- */

.catalog-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  min-height: 64px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
}

.filter-chip {
  padding: 7px 12px;
  border: 1px solid transparent;
  border-radius: 2px;
  background: transparent;
  color: var(--muted-dark);
  font-size: 12px;
  line-height: 1.4;
  transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.filter-chip:hover {
  color: var(--ink);
  border-color: var(--line);
}

.filter-chip.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: #f1fbfc;
}

.search-field {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 276px;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.35);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.search-field:focus-within {
  border-color: var(--ink-soft);
  background: var(--surface);
}

.search-field .icon {
  width: 15px;
  height: 15px;
  color: var(--muted);
}

.search-field input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: 12px;
}

.search-field input::placeholder {
  color: #8a9b9f;
}

.search-field input::-webkit-search-cancel-button {
  opacity: 0.55;
}

.search-key {
  color: #a2b1b3;
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.11em;
}

.catalog-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 17px 0 4px;
  color: var(--muted);
  font-size: 10.5px;
  letter-spacing: 0.03em;
}

.catalog-meta p {
  display: flex;
  align-items: center;
  gap: 8px;
}

.demo-notice {
  color: var(--amber);
}

.demo-notice::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: currentColor;
}

.product-list {
  border-bottom: 1px solid var(--line);
}

.product-row {
  position: relative;
  display: grid;
  grid-template-columns: 26px 218px minmax(0, 1fr) 196px;
  gap: 27px;
  align-items: stretch;
  padding: 27px 0;
  border-top: 1px solid var(--line);
  transition: background-color 0.25s ease;
}

.product-row::before {
  content: "";
  position: absolute;
  top: 27px;
  bottom: 27px;
  left: -18px;
  width: 1px;
  background: var(--ink);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.35s var(--ease-out);
}

.product-row:hover {
  background: rgba(255, 255, 255, 0.48);
}

.product-row:hover::before {
  transform: scaleY(1);
  transform-origin: top;
}

.product-index {
  color: #92a2a4;
  font-family: var(--font-mono);
  font-size: 8.5px;
  line-height: 1.6;
  padding-top: 4px;
}

.product-thumb {
  position: relative;
  display: block;
  align-self: center;
  width: 100%;
  aspect-ratio: 4 / 3;
  padding: 0;
  overflow: hidden;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--mist);
  cursor: pointer;
}

.product-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-out);
}

.product-row:hover .product-thumb img {
  transform: scale(1.035);
}

.thumb-badge {
  position: absolute;
  top: 9px;
  left: 9px;
  padding: 3px 7px;
  background: rgba(6, 28, 36, 0.76);
  border: 1px solid rgba(255, 255, 255, 0.13);
  color: #e8fbfc;
  font-size: 8.5px;
  line-height: 1.4;
  letter-spacing: 0.08em;
  backdrop-filter: blur(6px);
}

.product-main {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  padding: 2px 0;
}

.product-kicker {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 7px;
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.11em;
  line-height: 1.5;
  text-transform: uppercase;
}

.product-kicker span:not(:last-child)::after {
  content: "/";
  margin-left: 10px;
  color: #aab9ba;
}

.product-title-button {
  display: block;
  width: fit-content;
  max-width: 100%;
  padding: 0;
  border: 0;
  background: none;
  color: var(--ink);
  text-align: left;
}

.product-title-button h3 {
  font-size: 23px;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.025em;
  transition: color 0.2s ease;
}

.product-title-button:hover h3 {
  color: var(--accent-ink);
}

.product-summary {
  max-width: 625px;
  margin: 10px 0 15px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.85;
}

.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.product-tag {
  padding: 4px 8px;
  border: 1px solid rgba(8, 35, 44, 0.09);
  background: rgba(255, 255, 255, 0.38);
  color: var(--muted-dark);
  font-size: 10px;
  line-height: 1.4;
}

.product-side {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-left: 23px;
  border-left: 1px solid var(--line);
}

.stock-label {
  color: #8b9d9f;
  font-family: var(--font-mono);
  font-size: 8px;
  line-height: 1.4;
  letter-spacing: 0.11em;
}

.stock-line {
  display: flex;
  align-items: baseline;
  gap: 5px;
  margin-top: 3px;
}

.stock-number {
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 38px;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.07em;
  font-variant-numeric: tabular-nums;
}

.stock-number.is-low {
  color: var(--amber);
}

.stock-number.is-out {
  color: #ad7267;
}

.stock-unit {
  color: var(--muted);
  font-size: 10px;
}

.stock-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  width: fit-content;
  margin-top: 9px;
  padding: 3px 7px;
  background: var(--green-soft);
  color: #137558;
  font-size: 9px;
  line-height: 1.5;
  letter-spacing: 0.03em;
}

.stock-badge::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: currentColor;
}

.stock-badge.is-low {
  background: var(--amber-soft);
  color: var(--amber);
}

.stock-badge.is-out {
  background: var(--red-soft);
  color: var(--red);
}

.stock-updated {
  margin-top: 5px;
  color: #93a3a5;
  font-size: 9px;
}

.product-side-actions {
  display: flex;
  gap: 6px;
  margin-top: 13px;
}

.row-action {
  flex: 1;
  min-height: 33px;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: transparent;
  color: var(--ink-soft);
  font-size: 10.5px;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.row-action:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: #f3fbfc;
}

.row-action.is-primary {
  border-color: var(--ink);
  background: var(--ink);
  color: #f3fbfc;
}

.row-action.is-primary:hover {
  background: var(--ink-soft);
}

.product-skeleton {
  display: grid;
  grid-template-columns: 26px 218px minmax(0, 1fr) 196px;
  gap: 27px;
  padding: 27px 0;
  border-top: 1px solid var(--line);
}

.product-skeleton span {
  display: block;
  min-height: 82px;
  background: linear-gradient(90deg, rgba(228, 234, 230, 0.5), rgba(247, 247, 242, 0.95), rgba(228, 234, 230, 0.5));
  background-size: 200% 100%;
  animation: skeleton 1.7s ease-in-out infinite;
}

.product-skeleton span:first-child {
  min-height: 12px;
  width: 12px;
}

.product-skeleton span:nth-child(2) {
  aspect-ratio: 4 / 3;
  min-height: 0;
}

.product-skeleton span:nth-child(4) {
  min-height: 120px;
}

.empty-state {
  padding: 70px 20px;
  border-top: 1px solid var(--line);
  text-align: center;
}

.empty-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--muted);
}

.empty-state h3 {
  font-size: 19px;
  font-weight: 600;
}

.empty-state p {
  margin: 8px auto 20px;
  color: var(--muted);
  font-size: 12.5px;
}

.catalog-footnote {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding-top: 21px;
  color: #8b9b9d;
  font-size: 10px;
}

.catalog-footnote p {
  display: flex;
  align-items: center;
  gap: 7px;
}

.catalog-footnote .icon {
  width: 13px;
  height: 13px;
}

/* ---------- 服务流程 ---------- */

.service-section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(18, 69, 81, 0.22), transparent 44%),
    var(--ink-deep);
  color: #edfafb;
}

.service-section::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(159, 228, 234, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(159, 228, 234, 0.04) 1px, transparent 1px);
  background-size: 92px 92px;
  -webkit-mask-image: radial-gradient(ellipse at 24% 50%, rgba(0, 0, 0, 0.7), transparent 72%);
  mask-image: radial-gradient(ellipse at 24% 50%, rgba(0, 0, 0, 0.7), transparent 72%);
}

.service-glow {
  position: absolute;
  z-index: -1;
  right: -12%;
  top: -10%;
  width: 760px;
  height: 760px;
  border: 1px solid rgba(128, 221, 231, 0.08);
  border-radius: 50%;
  box-shadow: inset 0 0 160px rgba(57, 169, 181, 0.06);
}

.service-glow::before,
.service-glow::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(128, 221, 231, 0.06);
}

.service-glow::before {
  inset: 13%;
}

.service-glow::after {
  inset: 29%;
  border-style: dashed;
}

.service-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: 100px;
  align-items: start;
}

.service-intro {
  padding-top: 4px;
}

.service-intro h2 {
  margin-top: 20px;
  max-width: 440px;
  color: #f0fcfc;
  font-size: clamp(38px, 4.4vw, 55px);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -0.04em;
}

.service-lead {
  max-width: 340px;
  margin-top: 23px;
  color: rgba(194, 225, 228, 0.58);
  font-size: 13px;
  line-height: 1.95;
}

.service-cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  margin-top: 37px;
}

.service-cta .btn {
  min-height: 43px;
}

.service-cta > span {
  color: rgba(166, 208, 213, 0.43);
  font-size: 9.5px;
  letter-spacing: 0.03em;
}

.process-list {
  border-top: 1px solid var(--line-light);
}

.process-list li {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 20px;
  padding: 28px 0 27px;
  border-bottom: 1px solid var(--line-light);
  transition: padding-left 0.3s var(--ease-out), background-color 0.3s ease;
}

.process-list li:hover {
  padding-left: 7px;
}

.process-number {
  padding-top: 2px;
  color: #6fc4cc;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.process-list h3 {
  margin-bottom: 7px;
  color: #ecfafb;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.025em;
}

.process-list p {
  max-width: 470px;
  color: rgba(182, 216, 220, 0.52);
  font-size: 12px;
  line-height: 1.9;
}

/* ---------- 关于我们 ---------- */

.about-section {
  position: relative;
  background: var(--paper-soft);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.89fr) minmax(0, 1.11fr);
  align-items: center;
  gap: 96px;
}

.about-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 558px;
  overflow: hidden;
  padding: 34px;
  background:
    radial-gradient(ellipse at 84% 18%, rgba(59, 176, 189, 0.18), transparent 48%),
    linear-gradient(145deg, #0b2a34, #051a22);
  color: #e9f9fa;
}

.about-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(165, 232, 237, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(165, 232, 237, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(135deg, rgba(0, 0, 0, 0.8), transparent 75%);
  mask-image: linear-gradient(135deg, rgba(0, 0, 0, 0.8), transparent 75%);
}

.about-panel::after {
  content: "";
  position: absolute;
  right: -24%;
  bottom: -34%;
  width: 560px;
  height: 560px;
  border: 1px solid rgba(127, 223, 232, 0.11);
  border-radius: 50%;
  box-shadow: inset 0 0 90px rgba(47, 170, 183, 0.08);
}

.about-coordinate {
  position: relative;
  z-index: 2;
  color: rgba(162, 214, 219, 0.47);
  font-family: var(--font-mono);
  font-size: 8px;
  line-height: 1.8;
  letter-spacing: 0.11em;
}

.about-watermark {
  position: absolute;
  z-index: 1;
  right: -7px;
  bottom: -77px;
  color: rgba(229, 250, 251, 0.045);
  font-family: var(--font-serif);
  font-size: 408px;
  font-weight: 400;
  line-height: 1;
  user-select: none;
}

.about-signal {
  position: absolute;
  z-index: 2;
  top: 45%;
  right: 12%;
  width: 72%;
  opacity: 0.64;
}

.about-signal svg {
  width: 100%;
  height: auto;
}

.about-panel-foot {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.about-since {
  color: #72cbd3;
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.3em;
}

.about-panel-foot strong {
  margin: 2px 0 8px;
  color: rgba(237, 251, 252, 0.94);
  font-family: var(--font-serif);
  font-size: 76px;
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.025em;
}

.about-panel-foot p {
  max-width: 220px;
  color: rgba(172, 213, 217, 0.48);
  font-size: 10.5px;
  line-height: 1.9;
}

.about-panel-line {
  position: absolute;
  z-index: 2;
  top: 28px;
  right: 30px;
  width: 96px;
  height: 1px;
  background: rgba(152, 232, 238, 0.25);
}

.about-panel-line::after {
  content: "";
  position: absolute;
  right: 0;
  top: -2px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold);
}

.about-copy {
  padding: 6px 0;
}

.about-copy h2 {
  display: flex;
  flex-direction: column;
  margin-top: 19px;
  color: var(--ink);
  font-size: clamp(36px, 4.1vw, 52px);
  font-weight: 600;
  line-height: 1.22;
  letter-spacing: -0.045em;
}

.about-lead {
  max-width: 480px;
  margin-top: 25px;
  color: var(--ink-soft);
  font-size: 16.5px;
  line-height: 1.85;
  letter-spacing: 0.005em;
}

.about-body {
  max-width: 525px;
  margin-top: 17px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 2;
}

.about-body p + p {
  margin-top: 9px;
}

.about-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 35px;
  padding-top: 21px;
  border-top: 1px solid var(--line);
}

.about-point > span {
  color: #9aabad;
  font-family: var(--font-mono);
  font-size: 8px;
  line-height: 1;
  letter-spacing: 0.07em;
}

.about-point h3 {
  margin: 11px 0 6px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.about-point p {
  color: var(--muted);
  font-size: 10.5px;
  line-height: 1.8;
}

/* ---------- 联系与询价 ---------- */

.contact-section {
  padding: 116px 0 124px;
  background:
    linear-gradient(180deg, rgba(235, 237, 229, 0.5), rgba(243, 241, 234, 0)),
    var(--paper);
}

.contact-card {
  display: grid;
  grid-template-columns: minmax(0, 0.84fr) minmax(0, 1.16fr);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
}

.contact-aside {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 53px 48px 37px;
  background:
    radial-gradient(ellipse at 86% 16%, rgba(49, 176, 188, 0.23), transparent 47%),
    linear-gradient(150deg, #0b2b35 0%, #061b24 74%);
  color: #eefafb;
}

.contact-aside-grid {
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(155, 228, 233, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(155, 228, 233, 0.045) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: linear-gradient(140deg, rgba(0, 0, 0, 0.75), transparent 82%);
  mask-image: linear-gradient(140deg, rgba(0, 0, 0, 0.75), transparent 82%);
}

.contact-aside h2 {
  position: relative;
  max-width: 340px;
  margin-top: 20px;
  color: #effbfc;
  font-size: clamp(31px, 3.25vw, 42px);
  font-weight: 500;
  line-height: 1.33;
  letter-spacing: -0.04em;
}

.contact-lead {
  max-width: 350px;
  margin-top: 18px;
  color: rgba(190, 224, 227, 0.59);
  font-size: 12.5px;
  line-height: 1.95;
}

.contact-channels {
  margin-top: 30px;
  border-top: 1px solid var(--line-light);
}

.contact-channel {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(218, 247, 249, 0.09);
}

.contact-channel .channel-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  margin-top: 1px;
  border: 1px solid rgba(155, 228, 233, 0.16);
  border-radius: 50%;
  color: #91dfe4;
}

.contact-channel .icon {
  width: 12px;
  height: 12px;
}

.contact-channel div {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.contact-channel div span {
  color: rgba(162, 202, 207, 0.45);
  font-family: var(--font-mono);
  font-size: 7.5px;
  line-height: 1.5;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.contact-channel strong,
.contact-channel a {
  color: rgba(235, 251, 252, 0.86);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.contact-channel:hover strong {
  color: var(--accent);
}

.contact-chat-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  margin-top: 22px;
  padding: 12px 14px;
  border: 1px solid rgba(158, 229, 234, 0.2);
  border-radius: 2px;
  background: rgba(153, 234, 240, 0.055);
  color: #e9fbfc;
  font-size: 11.5px;
  text-align: left;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.contact-chat-link > span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.contact-chat-link .icon {
  width: 15px;
  height: 15px;
}

.contact-chat-link:hover {
  border-color: rgba(158, 229, 234, 0.4);
  background: rgba(153, 234, 240, 0.1);
}

.contact-privacy-note {
  margin-top: 15px;
  color: rgba(163, 200, 205, 0.35);
  font-size: 8.5px;
  line-height: 1.7;
  letter-spacing: 0.02em;
}

.contact-form-wrap {
  padding: 49px 51px 42px;
}

.form-heading h3 {
  margin-top: 8px;
  color: var(--ink);
  font-size: 25px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: -0.025em;
}

.form-heading > p:last-child {
  margin-top: 8px;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.8;
}

.form-step {
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.13em;
  line-height: 1.5;
}

.required-mark {
  color: var(--red);
}

.inquiry-form {
  margin-top: 26px;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 15px;
  margin-bottom: 15px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}

.field-label {
  color: var(--muted-dark);
  font-size: 10.5px;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.field-label em {
  margin-left: 2px;
  color: var(--red);
  font-style: normal;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid #d9dfd8;
  border-radius: 2px;
  background: #f7f8f3;
  color: var(--ink);
  font-size: 12.5px;
  outline: none;
  transition: border-color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

.field input,
.field select {
  height: 43px;
  padding: 0 12px;
}

.field select {
  cursor: pointer;
}

.field textarea {
  min-height: 104px;
  padding: 11px 12px;
  line-height: 1.7;
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #97a5a4;
}

.field input:hover,
.field select:hover,
.field textarea:hover {
  border-color: #c4cec8;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent-ink);
  background: var(--surface);
  box-shadow: 0 0 0 3px rgba(11, 112, 123, 0.08);
}

.field-full {
  margin-bottom: 15px;
}

.consent-field {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: #809091;
  font-size: 9.5px;
  line-height: 1.7;
  cursor: pointer;
}

.consent-field input {
  width: 13px;
  height: 13px;
  margin: 2px 0 0;
  accent-color: var(--accent-ink);
  flex: none;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-top: 20px;
}

.btn-submit {
  min-width: 145px;
}

.form-hint {
  color: #9aa7a6;
  font-size: 9.5px;
}

.form-status {
  margin-top: 13px;
  padding: 9px 11px;
  background: var(--red-soft);
  color: var(--red);
  font-size: 11px;
  line-height: 1.6;
}

.form-status.is-success {
  background: var(--green-soft);
  color: #137558;
}

.inquiry-success {
  min-height: 410px;
  padding-top: 44px;
}

.success-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 47px;
  height: 47px;
  margin-bottom: 19px;
  border-radius: 50%;
  background: var(--green-soft);
  color: var(--green);
}

.success-icon .icon {
  width: 22px;
  height: 22px;
}

.inquiry-success h3 {
  margin-top: 10px;
  font-size: 29px;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.inquiry-success > p:not(.form-step) {
  max-width: 420px;
  margin-top: 11px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.9;
}

.success-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 27px;
}

/* ---------- 错误提示与轻提示 ---------- */

.load-error {
  padding: 20px;
  border: 1px solid #e2cfc8;
  background: #fbf2ef;
  color: var(--red);
  font-size: 12.5px;
  text-align: center;
}

.load-error button {
  margin-left: 10px;
  border: 0;
  border-bottom: 1px solid currentColor;
  background: none;
  color: inherit;
  font-size: inherit;
}

.toast {
  position: fixed;
  z-index: 200;
  left: 50%;
  bottom: 30px;
  max-width: min(460px, calc(100vw - 40px));
  padding: 11px 18px;
  border-radius: 3px;
  background: var(--ink);
  color: #f2fbfc;
  box-shadow: 0 16px 40px rgba(4, 20, 27, 0.22);
  font-size: 12px;
  line-height: 1.6;
  transform: translate(-50%, 8px);
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

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

/* ---------- 页脚 ---------- */

.site-footer {
  background: var(--ink-deep);
  color: rgba(223, 242, 244, 0.68);
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(250px, 1.5fr) minmax(120px, 0.65fr) minmax(130px, 0.75fr) minmax(200px, 1.1fr);
  gap: 55px;
  padding: 68px 0 51px;
  border-bottom: 1px solid rgba(214, 242, 245, 0.1);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
}

.footer-brand img {
  width: 172px;
  height: auto;
  opacity: 0.96;
}

.footer-company {
  margin-top: 12px;
  color: rgba(194, 224, 227, 0.56);
  font-size: 9.5px;
  line-height: 1.7;
  letter-spacing: 0.02em;
}

.footer-tagline {
  margin-top: 10px;
  color: rgba(178, 211, 215, 0.43);
  font-size: 10px;
  line-height: 1.9;
}

.footer-chat-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  padding: 8px 11px;
  border: 1px solid rgba(164, 231, 237, 0.17);
  border-radius: 2px;
  background: transparent;
  color: rgba(226, 247, 249, 0.8);
  font-size: 10px;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.footer-chat-btn:hover {
  border-color: rgba(164, 231, 237, 0.36);
  background: rgba(144, 229, 236, 0.045);
}

.footer-chat-btn .icon {
  width: 12px;
  height: 12px;
}

.footer-column h3 {
  margin-bottom: 16px;
  color: rgba(226, 247, 249, 0.82);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.footer-column > a,
.footer-column #footer-categories a {
  display: block;
  margin: 7px 0;
  color: rgba(178, 211, 215, 0.52);
  font-size: 10.5px;
  line-height: 1.85;
  transition: color 0.2s ease;
}

.footer-column > a:hover,
.footer-column #footer-categories a:hover {
  color: var(--accent);
}

.footer-contact p {
  display: grid;
  grid-template-columns: 55px minmax(0, 1fr);
  gap: 10px;
  margin: 7px 0;
  font-size: 10px;
  line-height: 1.8;
}

.footer-contact p > span:first-child {
  color: rgba(157, 195, 199, 0.35);
}

.footer-contact strong,
.footer-contact a {
  color: rgba(199, 228, 231, 0.64);
  font-size: 10px;
  font-weight: 400;
  overflow-wrap: anywhere;
}

.footer-contact a:hover {
  color: var(--accent);
}

.footer-contact-note {
  display: flex !important;
  align-items: center;
  grid-template-columns: none !important;
  gap: 6px !important;
  margin-top: 17px !important;
  padding-top: 13px;
  border-top: 1px solid rgba(214, 242, 245, 0.08);
  color: rgba(157, 195, 199, 0.35) !important;
}

.footer-contact-note .icon {
  width: 11px;
  height: 11px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 0 24px;
  color: rgba(150, 187, 192, 0.35);
  font-size: 9px;
  line-height: 1.7;
}

.footer-legal {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-wrap: wrap;
}

.footer-legal a {
  transition: color 0.2s ease;
}

.footer-legal a:hover {
  color: rgba(213, 241, 243, 0.8);
}

.footer-dot {
  color: rgba(150, 187, 192, 0.2);
}

.noscript-note {
  position: relative;
  z-index: 100;
  padding: 12px 20px;
  background: var(--amber-soft);
  color: #65451e;
  text-align: center;
  font-size: 12px;
}

/* =========================================================
   在线客服
   ========================================================= */

.chat-root {
  position: relative;
  z-index: 80;
}

.chat-launcher {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  padding: 7px 17px 7px 8px;
  border: 1px solid rgba(5, 32, 41, 0.12);
  border-radius: 999px;
  background: var(--ink);
  color: #effbfc;
  box-shadow: 0 13px 35px rgba(5, 25, 33, 0.24);
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s ease, background-color 0.25s ease;
}

.chat-launcher:hover {
  transform: translateY(-2px);
  background: #0c303b;
  box-shadow: 0 18px 43px rgba(5, 25, 33, 0.28);
}

.launcher-icon {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 39px;
  height: 39px;
  border-radius: 50%;
  background: rgba(145, 236, 242, 0.12);
  color: var(--accent);
  flex: none;
}

.launcher-icon .icon {
  width: 19px;
  height: 19px;
}

.launcher-close-icon {
  display: none;
}

.chat-launcher[aria-expanded="true"] .launcher-chat-icon {
  display: none;
}

.chat-launcher[aria-expanded="true"] .launcher-close-icon {
  display: block;
}

.launcher-status {
  position: absolute;
  right: 1px;
  bottom: 1px;
  width: 8px;
  height: 8px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: #788b8f;
}

html[data-availability="online"] .launcher-status {
  background: #64dfb7;
}

html[data-availability="away"] .launcher-status {
  background: var(--gold);
}

.launcher-label {
  font-size: 12px;
  white-space: nowrap;
}

.launcher-badge {
  position: absolute;
  top: -4px;
  right: -2px;
  min-width: 18px;
  height: 18px;
  padding: 0 4px;
  border-radius: 10px;
  background: var(--gold);
  color: #3d2607;
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 18px;
  text-align: center;
}

.chat-panel {
  position: fixed;
  right: 24px;
  bottom: 91px;
  z-index: 89;
  display: flex;
  flex-direction: column;
  width: min(390px, calc(100vw - 32px));
  height: min(680px, calc(100dvh - 112px));
  overflow: hidden;
  border: 1px solid rgba(8, 35, 44, 0.16);
  border-radius: 9px;
  background: var(--paper-soft);
  box-shadow: 0 26px 70px rgba(4, 22, 29, 0.26);
  animation: chat-panel-in 0.3s var(--ease-out) both;
}

.chat-header {
  position: relative;
  flex: none;
  padding: 19px 17px 15px;
  background:
    radial-gradient(ellipse at 90% 0%, rgba(55, 177, 189, 0.25), transparent 56%),
    var(--ink-deep);
  color: #f1fbfc;
}

.chat-header::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(167, 234, 238, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(167, 234, 238, 0.035) 1px, transparent 1px);
  background-size: 34px 34px;
  pointer-events: none;
}

.chat-header-main {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 10px;
}

.agent-avatar {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 39px;
  height: 39px;
  border: 1px solid rgba(166, 236, 241, 0.27);
  border-radius: 50%;
  background: rgba(124, 227, 235, 0.1);
  color: #b6f4f7;
  flex: none;
}

.agent-avatar img {
  width: 27px;
  height: 27px;
}

.agent-presence {
  position: absolute;
  right: 0;
  bottom: 1px;
  width: 8px;
  height: 8px;
  border: 2px solid var(--ink-deep);
  border-radius: 50%;
  background: #758b8d;
}

html[data-availability="online"] .agent-presence {
  background: #65dfb8;
}

html[data-availability="away"] .agent-presence {
  background: var(--gold);
}

.agent-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.agent-info strong {
  color: #effbfc;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.02em;
}

.agent-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: rgba(175, 215, 219, 0.6);
  font-size: 9px;
  line-height: 1.5;
}

.agent-status .live-dot {
  width: 5px;
  height: 5px;
}

.chat-close {
  position: absolute;
  z-index: 2;
  top: 14px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: 1px solid rgba(208, 243, 245, 0.14);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  color: rgba(234, 252, 253, 0.8);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.chat-close:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(208, 243, 245, 0.3);
}

.chat-close .icon {
  width: 14px;
  height: 14px;
}

.chat-header-note {
  position: relative;
  z-index: 1;
  margin: 12px 0 0 49px;
  color: rgba(160, 205, 210, 0.37);
  font-family: var(--font-mono);
  font-size: 6.5px;
  line-height: 1.5;
  letter-spacing: 0.08em;
}

.chat-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: #c6d0cc transparent;
}

.chat-body::-webkit-scrollbar {
  width: 5px;
}

.chat-body::-webkit-scrollbar-thumb {
  background: #c6d0cc;
  border-radius: 5px;
}

.chat-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 80px 20px;
  color: var(--muted);
  font-size: 11px;
}

.loading-ring {
  display: block;
  width: 25px;
  height: 25px;
  border: 2px solid rgba(8, 35, 44, 0.1);
  border-top-color: var(--accent-ink);
  border-radius: 50%;
  animation: orbit-spin 0.9s linear infinite;
}

.chat-intro-view {
  padding: 21px 20px 18px;
}

.chat-welcome-block {
  padding-bottom: 19px;
  border-bottom: 1px solid var(--line);
}

.welcome-kicker {
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 7.5px;
  letter-spacing: 0.1em;
}

.chat-welcome-block h2 {
  margin-top: 8px;
  color: var(--ink);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.025em;
}

.chat-welcome-block > p {
  margin-top: 7px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.8;
}

.chat-topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 12px;
}

.chat-topic-tags span {
  padding: 3px 7px;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--muted-dark);
  font-size: 8.5px;
  line-height: 1.5;
  background: rgba(255, 255, 255, 0.4);
}

.offline-notice {
  margin-top: 14px;
  padding: 8px 10px;
  background: var(--amber-soft);
  color: #77521e;
  font-size: 10px;
  line-height: 1.65;
}

.chat-start-form {
  margin-top: 16px;
}

.chat-field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.chat-field {
  display: flex;
  flex-direction: column;
  gap: 5px;
  margin-bottom: 9px;
  min-width: 0;
}

.chat-field > span {
  color: var(--muted-dark);
  font-size: 9px;
  line-height: 1.5;
}

.chat-field em {
  color: var(--red);
  font-style: normal;
}

.chat-field input,
.chat-field select {
  width: 100%;
  height: 36px;
  padding: 0 9px;
  border: 1px solid #d5dcd5;
  border-radius: 2px;
  background: #fff;
  color: var(--ink);
  font-size: 10.5px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.chat-field input::placeholder {
  color: #9ba8a6;
}

.chat-field input:focus,
.chat-field select:focus {
  border-color: var(--accent-ink);
  box-shadow: 0 0 0 3px rgba(11, 112, 123, 0.07);
}

.chat-consent {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  margin-top: 2px;
  color: #8b9997;
  font-size: 8.5px;
  line-height: 1.6;
  cursor: pointer;
}

.chat-consent input {
  width: 11px;
  height: 11px;
  margin: 1px 0 0;
  accent-color: var(--accent-ink);
  flex: none;
}

.chat-start-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  width: 100%;
  height: 39px;
  margin-top: 12px;
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: var(--ink);
  color: #eefbfc;
  font-size: 11px;
  transition: background-color 0.2s ease;
}

.chat-start-btn:hover {
  background: var(--ink-soft);
}

.chat-start-btn .icon {
  width: 13px;
  height: 13px;
}

.chat-start-btn:disabled {
  cursor: wait;
  opacity: 0.62;
}

.chat-form-error,
.chat-send-error {
  margin-top: 9px;
  padding: 7px 9px;
  background: var(--red-soft);
  color: var(--red);
  font-size: 9.5px;
  line-height: 1.55;
}

.chat-privacy {
  margin-top: 12px;
  color: #a3aeab;
  font-size: 8px;
  line-height: 1.6;
  text-align: center;
}

.chat-thread-view {
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

.chat-thread {
  display: flex;
  flex-direction: column;
  gap: 13px;
  padding: 20px 18px 13px;
}

.chat-message {
  display: flex;
  flex-direction: column;
  gap: 3px;
  max-width: 84%;
  animation: message-in 0.24s var(--ease-out) both;
}

.chat-message.is-admin {
  align-self: flex-start;
  align-items: flex-start;
}

.chat-message.is-visitor {
  align-self: flex-end;
  align-items: flex-end;
}

.chat-message-bubble {
  padding: 9px 11px;
  border: 1px solid #dde3dc;
  border-radius: 2px 10px 10px 10px;
  background: #fff;
  color: var(--ink-soft);
  font-size: 11.5px;
  line-height: 1.72;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
  box-shadow: 0 3px 10px rgba(6, 28, 36, 0.025);
}

.chat-message.is-visitor .chat-message-bubble {
  border-color: var(--ink);
  border-radius: 10px 2px 10px 10px;
  background: var(--ink);
  color: #eefbfc;
}

.chat-message-meta {
  color: #99a6a3;
  font-family: var(--font-mono);
  font-size: 7.5px;
  line-height: 1.4;
  letter-spacing: 0.015em;
}

.chat-system-note {
  align-self: center;
  max-width: 90%;
  padding: 4px 8px;
  background: rgba(8, 35, 44, 0.045);
  color: #8b9996;
  font-size: 8.5px;
  line-height: 1.6;
  text-align: center;
}

.chat-quick-replies {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: auto;
  padding: 4px 18px 15px;
}

.chat-quick-reply {
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.55);
  color: var(--muted-dark);
  font-size: 8.5px;
  line-height: 1.5;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.chat-quick-reply:hover {
  border-color: var(--accent-ink);
  color: var(--accent-ink);
}

.chat-composer {
  flex: none;
  padding: 9px 11px 8px;
  border-top: 1px solid var(--line);
  background: #fff;
}

.chat-input-wrap {
  display: flex;
  align-items: flex-end;
  gap: 7px;
  padding: 4px 4px 4px 9px;
  border: 1px solid #d7ded7;
  border-radius: 3px;
  background: var(--paper-soft);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.chat-input-wrap:focus-within {
  border-color: var(--accent-ink);
  box-shadow: 0 0 0 3px rgba(11, 112, 123, 0.07);
}

.chat-input-wrap textarea {
  width: 100%;
  max-height: 96px;
  min-height: 28px;
  padding: 5px 0;
  overflow-y: auto;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 11px;
  line-height: 1.6;
  outline: none;
  resize: none;
}

.chat-input-wrap textarea::placeholder {
  color: #a0adaa;
}

.chat-send {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 29px;
  height: 29px;
  margin-bottom: 1px;
  border: 0;
  border-radius: 2px;
  background: var(--ink);
  color: var(--accent);
  flex: none;
  transition: background-color 0.2s ease;
}

.chat-send:hover {
  background: var(--ink-soft);
}

.chat-send:disabled {
  cursor: wait;
  opacity: 0.55;
}

.chat-send .icon {
  width: 13px;
  height: 13px;
}

.chat-composer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 5px 2px 0;
  color: #a3afac;
  font-size: 7.5px;
  line-height: 1.5;
}

.chat-composer-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.chat-composer-meta .icon {
  width: 9px;
  height: 9px;
}

.chat-send-error {
  margin: 6px 1px 0;
}

/* ---------- 产品详情弹窗 ---------- */

.product-dialog {
  width: min(1030px, calc(100vw - 38px));
  max-width: none;
  max-height: calc(100dvh - 38px);
  padding: 0;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: var(--ink);
  overflow: visible;
}

.product-dialog::backdrop {
  background: rgba(3, 16, 22, 0.72);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
}

.product-dialog-shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.93fr) minmax(0, 1.07fr);
  max-height: calc(100dvh - 38px);
  overflow: hidden;
  background: var(--paper-soft);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.3);
}

.dialog-close {
  position: absolute;
  z-index: 5;
  top: 16px;
  right: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(8, 35, 44, 0.14);
  border-radius: 50%;
  background: rgba(248, 247, 242, 0.88);
  color: var(--ink);
  backdrop-filter: blur(6px);
  transition: background-color 0.2s ease;
}

.dialog-close:hover {
  background: #fff;
}

.dialog-close .icon {
  width: 16px;
  height: 16px;
}

.dialog-media {
  position: relative;
  min-height: 100%;
  overflow: hidden;
  background: var(--mist);
}

.dialog-media img {
  width: 100%;
  height: 100%;
  min-height: 500px;
  padding: 22px;
  object-fit: contain;
}

.dialog-media::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 90px;
  background: linear-gradient(transparent, rgba(5, 26, 34, 0.18));
}

.dialog-media-caption {
  position: absolute;
  z-index: 2;
  left: 24px;
  bottom: 21px;
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-mono);
  font-size: 7.5px;
  letter-spacing: 0.15em;
}

.dialog-content {
  overflow-y: auto;
  padding: 42px 43px 36px;
  max-height: calc(100dvh - 38px);
  scrollbar-width: thin;
}

.dialog-kicker {
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.13em;
}

.dialog-content h2 {
  margin-top: 9px;
  padding-right: 36px;
  font-size: clamp(27px, 3vw, 36px);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.04em;
}

.dialog-model {
  margin-top: 4px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
}

.dialog-stock {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 15px;
}

.dialog-stock .stock-number {
  font-size: 27px;
}

.dialog-stock .stock-badge {
  margin: 0;
}

.dialog-stock .dialog-updated {
  color: var(--muted);
  font-size: 9px;
}

.dialog-summary {
  margin-top: 16px;
  padding-top: 15px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.9;
}

.dialog-description {
  margin-top: 9px;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.95;
}

.dialog-section {
  margin-top: 23px;
  padding-top: 19px;
  border-top: 1px solid var(--line);
}

.dialog-section h3 {
  margin-bottom: 11px;
  color: var(--ink);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px 12px;
}

.feature-list li {
  position: relative;
  padding-left: 14px;
  color: var(--muted-dark);
  font-size: 10.5px;
  line-height: 1.7;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent-ink);
}

.spec-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 20px;
}

.spec-list > div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(8, 35, 44, 0.08);
  font-size: 10px;
  line-height: 1.6;
}

.spec-list dt {
  color: var(--muted);
  flex: none;
}

.spec-list dd {
  color: var(--ink-soft);
  margin: 0;
  text-align: right;
}

.dialog-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 25px;
}

.dialog-actions .btn {
  min-height: 42px;
  font-size: 12px;
}

.dialog-note {
  margin-top: 13px;
  color: #9aa6a4;
  font-size: 8.5px;
  line-height: 1.7;
}

/* ---------- 动效 ---------- */

@keyframes hero-copy-in {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes hero-visual-in {
  from { opacity: 0; transform: translateY(13px) scale(0.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes orbit-spin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

@keyframes orbit-spin-reverse {
  to { transform: translate(-50%, -50%) rotate(-360deg); }
}

@keyframes core-breathe {
  0%, 100% { box-shadow: inset 0 0 55px rgba(91, 211, 222, 0.08), 0 0 58px rgba(48, 176, 189, 0.07); }
  50% { box-shadow: inset 0 0 65px rgba(91, 211, 222, 0.12), 0 0 83px rgba(48, 176, 189, 0.12); }
}

@keyframes chip-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@keyframes map-twinkle {
  0%, 100% { opacity: 0.35; }
  50% { opacity: 1; }
}

@keyframes trace-travel {
  from { stroke-dashoffset: 1210; }
  to { stroke-dashoffset: 0; }
}

@keyframes scroll-line {
  0% { transform: translateX(-18px); opacity: 0; }
  30% { opacity: 1; }
  100% { transform: translateX(40px); opacity: 0; }
}

@keyframes skeleton {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes chat-panel-in {
  from { opacity: 0; transform: translateY(9px) scale(0.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes message-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =========================================================
   响应式
   ========================================================= */

@media (max-width: 1240px) {
  :root {
    --shell: calc(100vw - 72px);
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(390px, 0.86fr);
  }

  .network-visual {
    width: min(100%, 500px);
  }

  .brand-logo {
    width: 176px;
    height: 33px;
  }

  .brand-name {
    font-size: 16px;
  }

  .desktop-nav {
    gap: 24px;
  }

  .product-row,
  .product-skeleton {
    grid-template-columns: 22px 192px minmax(0, 1fr) 178px;
    gap: 22px;
  }

  .product-summary {
    font-size: 12px;
  }

  .about-grid {
    gap: 64px;
  }

  .contact-form-wrap {
    padding: 44px 40px 38px;
  }

  .contact-aside {
    padding: 44px 36px 32px;
  }
}

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

  .desktop-nav {
    gap: 19px;
  }

  .desktop-nav a {
    font-size: 12.5px;
  }

  .brand-logo {
    width: 160px;
    height: 30px;
  }

  .brand-name {
    font-size: 15.5px;
  }

  .brand-company {
    font-size: 8px;
  }

  .nav-inner {
    gap: 25px;
  }

  .nav-consult {
    padding-inline: 13px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr) 370px;
    gap: 25px;
    min-height: 590px;
    padding-top: 75px;
  }

  .hero-title {
    font-size: clamp(46px, 5.4vw, 66px);
  }

  .visual-chip {
    min-width: 114px;
    padding: 8px 10px;
  }

  .chip-right {
    right: -3%;
  }

  .chip-left {
    left: -4%;
  }

  .core-title {
    font-size: 21px;
  }

  .product-row,
  .product-skeleton {
    grid-template-columns: 18px 170px minmax(0, 1fr) 165px;
    gap: 18px;
  }

  .product-title-button h3 {
    font-size: 20px;
  }

  .stock-number {
    font-size: 34px;
  }

  .product-side {
    padding-left: 18px;
  }

  .value-item {
    padding: 24px 18px;
  }

  .section-head {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 36px;
  }

  .service-grid {
    gap: 60px;
  }

  .about-panel {
    min-height: 500px;
  }

  .about-panel-foot strong {
    font-size: 65px;
  }

  .about-points {
    gap: 16px;
  }

  .contact-card {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  }

  .contact-aside {
    padding: 40px 34px 30px;
  }

  .contact-form-wrap {
    padding: 39px 32px 34px;
  }

  .footer-main {
    gap: 34px;
  }
}

@media (max-width: 940px) {
  :root {
    --shell: calc(100vw - 56px);
  }

  .utility-hours,
  .utility-separator {
    display: none;
  }

  .desktop-nav,
  .nav-consult {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-inner {
    min-height: 68px;
    justify-content: space-between;
    gap: 15px;
  }

  .brand {
    min-width: 0;
  }

  .brand-logo {
    width: 150px;
    height: 28px;
  }

  .brand-name {
    font-size: 16px;
  }

  .brand-company {
    font-size: 8px;
  }

  .mobile-drawer {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: calc(100dvh - 103px);
    overflow-y: auto;
    padding: 19px 28px 25px;
    border-top: 1px solid var(--line);
    background: var(--paper);
    box-shadow: 0 24px 35px rgba(5, 25, 33, 0.12);
  }

  .mobile-nav {
    display: flex;
    flex-direction: column;
  }

  .mobile-nav a {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 15px 0;
    border-bottom: 1px solid var(--line);
    font-size: 15px;
  }

  .mobile-nav a span {
    color: var(--accent-ink);
    font-family: var(--font-mono);
    font-size: 8px;
    letter-spacing: 0.06em;
  }

  .mobile-drawer-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    margin-top: 20px;
  }

  .small-label {
    display: block;
    color: var(--muted);
    font-size: 9px;
    line-height: 1.4;
  }

  .mobile-drawer-foot p {
    margin-top: 3px;
    font-size: 11px;
  }

  .hero-inner {
    display: block;
    min-height: 0;
    padding: 66px 0 47px;
  }

  .hero-copy {
    max-width: 620px;
  }

  .hero-visual {
    position: absolute;
    z-index: 1;
    top: 100px;
    right: -180px;
    width: 490px;
    opacity: 0.17;
    filter: saturate(0.8);
    pointer-events: none;
  }

  .hero-title {
    font-size: clamp(45px, 7.7vw, 68px);
  }

  .hero-lead {
    max-width: 540px;
  }

  .hero-foot {
    padding-top: 19px;
    padding-bottom: 55px;
  }

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

  .value-item {
    min-height: 118px;
    border-top: 1px solid var(--line);
  }

  .value-item:nth-child(-n + 2) {
    border-top: 0;
  }

  .value-item:nth-child(odd) {
    border-left: 0;
  }

  .section {
    padding: 88px 0;
  }

  .section-head {
    display: block;
    margin-bottom: 35px;
  }

  .section-lead {
    max-width: 490px;
    margin-top: 15px;
    justify-self: auto;
  }

  .catalog-toolbar {
    display: block;
  }

  .filter-row {
    margin-bottom: 12px;
  }

  .search-field {
    width: 100%;
  }

  .product-row,
  .product-skeleton {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 20px;
    padding: 24px 0;
  }

  .product-index {
    display: none;
  }

  .product-skeleton span:first-child {
    display: none;
  }

  .product-skeleton {
    grid-template-columns: 160px minmax(0, 1fr);
  }

  .product-skeleton span:nth-child(2) {
    grid-row: span 2;
  }

  .product-skeleton span:nth-child(4) {
    min-height: 50px;
  }

  .product-side {
    grid-column: 1 / -1;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-top: 2px;
    padding: 15px 0 0;
    border-top: 1px dashed var(--line);
    border-left: 0;
  }

  .product-side-main {
    display: flex;
    align-items: center;
    gap: 11px;
  }

  .stock-line {
    margin: 0;
  }

  .stock-number {
    font-size: 29px;
  }

  .stock-badge {
    margin: 0;
  }

  .stock-updated {
    margin: 0;
  }

  .product-side-actions {
    margin: 0;
  }

  .row-action {
    min-width: 85px;
    flex: 0 1 auto;
  }

  .product-title-button h3 {
    font-size: 19px;
  }

  .product-summary {
    margin-bottom: 12px;
  }

  .product-tags {
    display: none;
  }

  .catalog-footnote {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
    padding-top: 18px;
  }

  .service-grid {
    display: block;
  }

  .service-intro {
    max-width: 520px;
  }

  .service-intro h2 {
    max-width: none;
  }

  .service-cta {
    margin-top: 27px;
    margin-bottom: 43px;
  }

  .process-list li {
    padding: 23px 0;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .about-panel {
    min-height: 390px;
    max-width: 570px;
  }

  .about-copy {
    max-width: 670px;
  }

  .about-panel-foot strong {
    font-size: 62px;
  }

  .about-watermark {
    font-size: 330px;
  }

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

  .contact-aside {
    padding: 39px 34px 32px;
  }

  .contact-aside h2 {
    max-width: 440px;
  }

  .contact-lead {
    max-width: 500px;
  }

  .contact-channels {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 22px;
  }

  .contact-chat-link {
    max-width: 300px;
  }

  .contact-form-wrap {
    padding: 35px 34px 33px;
  }

  .footer-main {
    grid-template-columns: 1.35fr 0.7fr 0.8fr;
  }

  .footer-contact {
    grid-column: 1 / -1;
    padding-top: 2px;
  }

  .footer-contact p {
    display: inline-grid;
    grid-template-columns: none;
    gap: 0;
    min-width: 160px;
    margin-right: 26px;
  }

  .footer-contact-note {
    display: inline-flex !important;
    padding-top: 0 !important;
    border-top: 0 !important;
    margin-top: 10px !important;
  }
}

@media (max-width: 700px) {
  :root {
    --shell: calc(100vw - 36px);
  }

  .utility-inner {
    justify-content: center;
    min-height: 30px;
  }

  .utility-right {
    display: none;
  }

  .utility-brand {
    font-size: 9.5px;
  }

  .hero-inner {
    padding: 58px 0 35px;
  }

  .hero-visual {
    display: none;
  }

  .hero-title {
    margin-top: 23px;
    margin-bottom: 21px;
    font-size: clamp(39px, 10vw, 55px);
    line-height: 1.17;
    letter-spacing: -0.04em;
  }

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

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
    margin-top: 27px;
  }

  .hero-actions .btn {
    justify-content: space-between;
    width: 100%;
    min-height: 47px;
  }

  .hero-note {
    margin-top: 21px;
    font-size: 9.5px;
  }

  .hero-foot {
    display: block;
    padding-top: 17px;
    padding-bottom: 50px;
  }

  .hero-stats {
    gap: 28px;
  }

  .hero-stat strong {
    font-size: 16px;
  }

  .hero-stat span {
    font-size: 8.5px;
  }

  .hero-scroll {
    display: none;
  }

  .value-band {
    margin-top: -26px;
  }

  .value-item {
    min-height: 104px;
    padding: 19px 13px;
    gap: 7px;
  }

  .value-index {
    font-size: 7px;
  }

  .value-item h2 {
    margin-bottom: 5px;
    font-size: 13px;
  }

  .value-item p {
    font-size: 10px;
    line-height: 1.75;
  }

  .section {
    padding: 70px 0;
  }

  .section-heading h2 {
    margin-top: 13px;
    font-size: 34px;
  }

  .section-lead {
    font-size: 12px;
  }

  .catalog-toolbar {
    padding: 9px 0;
  }

  .filter-row {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
    scrollbar-width: none;
  }

  .filter-row::-webkit-scrollbar {
    display: none;
  }

  .filter-chip {
    flex: none;
    padding: 6px 10px;
    font-size: 11px;
  }

  .search-field {
    height: 38px;
  }

  .search-key {
    display: none;
  }

  .catalog-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
    padding-top: 12px;
    font-size: 9.5px;
  }

  .product-row {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 21px 0 22px;
  }

  .product-row::before {
    display: none;
  }

  .product-thumb {
    aspect-ratio: 16 / 9;
  }

  .product-main {
    padding: 0;
  }

  .product-kicker {
    margin-top: 1px;
    margin-bottom: 5px;
    font-size: 8px;
  }

  .product-title-button h3 {
    font-size: 20px;
  }

  .product-summary {
    margin-top: 8px;
    font-size: 11.5px;
    line-height: 1.8;
  }

  .product-side {
    padding-top: 13px;
  }

  .stock-label {
    display: none;
  }

  .stock-number {
    font-size: 28px;
  }

  .stock-updated {
    font-size: 8.5px;
  }

  .product-side-actions {
    width: 100%;
  }

  .row-action {
    flex: 1;
    min-height: 34px;
  }

  .product-skeleton {
    grid-template-columns: 1fr;
  }

  .product-skeleton span:nth-child(2) {
    aspect-ratio: 16 / 7;
    grid-row: auto;
  }

  .product-skeleton span:nth-child(4) {
    min-height: 40px;
  }

  .catalog-footnote {
    font-size: 9px;
  }

  .empty-state {
    padding: 55px 12px;
  }

  .service-intro h2 {
    font-size: 38px;
  }

  .service-lead {
    font-size: 12px;
  }

  .service-cta {
    align-items: flex-start;
  }

  .process-list li {
    grid-template-columns: 39px minmax(0, 1fr);
    gap: 10px;
    padding: 21px 0;
  }

  .process-list h3 {
    font-size: 16px;
  }

  .process-list p {
    font-size: 11px;
  }

  .about-panel {
    min-height: 340px;
    padding: 25px;
  }

  .about-panel-foot strong {
    font-size: 54px;
  }

  .about-copy h2 {
    font-size: 34px;
  }

  .about-lead {
    margin-top: 18px;
    font-size: 14px;
  }

  .about-body {
    font-size: 11.5px;
  }

  .about-points {
    grid-template-columns: 1fr;
    gap: 0;
    margin-top: 24px;
    padding-top: 0;
    border-top: 0;
  }

  .about-point {
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    align-items: baseline;
    gap: 4px 8px;
    padding: 13px 0;
    border-top: 1px solid var(--line);
  }

  .about-point h3 {
    margin: 0;
    font-size: 12px;
  }

  .about-point p {
    grid-column: 2;
    margin-top: -2px;
  }

  .contact-section {
    padding: 70px 0 76px;
  }

  .contact-aside {
    padding: 31px 22px 27px;
  }

  .contact-aside h2 {
    margin-top: 16px;
    font-size: 31px;
  }

  .contact-lead {
    font-size: 11.5px;
  }

  .contact-channels {
    grid-template-columns: 1fr;
    margin-top: 23px;
  }

  .contact-chat-link {
    max-width: none;
  }

  .contact-form-wrap {
    padding: 27px 20px 26px;
  }

  .form-heading h3 {
    font-size: 21px;
  }

  .form-heading > p:last-child {
    font-size: 10.5px;
  }

  .inquiry-form {
    margin-top: 21px;
  }

  .field-row {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 12px;
  }

  .field input,
  .field select {
    height: 42px;
  }

  .form-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 9px;
  }

  .btn-submit {
    justify-content: space-between;
    width: 100%;
  }

  .inquiry-success {
    min-height: 380px;
    padding-top: 25px;
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    padding: 47px 0 35px;
  }

  .footer-brand-block {
    grid-column: 1 / -1;
  }

  .footer-column:nth-child(2) {
    grid-column: 1;
  }

  .footer-column:nth-child(3) {
    grid-column: 2;
  }

  .footer-contact {
    grid-column: 1 / -1;
  }

  .footer-contact p {
    display: grid;
    grid-template-columns: 55px minmax(0, 1fr);
    min-width: 0;
    margin-right: 0;
  }

  .footer-contact-note {
    display: flex !important;
    padding-top: 13px !important;
    border-top: 1px solid rgba(214, 242, 245, 0.08) !important;
  }

  .footer-bottom {
    display: block;
    padding: 17px 0 88px;
  }

  .footer-legal {
    margin-top: 8px;
  }

  .chat-launcher {
    right: 14px;
    bottom: 14px;
    min-height: 50px;
    padding-right: 14px;
  }

  .launcher-icon {
    width: 35px;
    height: 35px;
  }

  .chat-panel {
    right: 12px;
    bottom: 76px;
    width: calc(100vw - 24px);
    height: min(660px, calc(100dvh - 94px));
    border-radius: 8px;
  }

  .chat-header {
    padding-top: 16px;
    padding-bottom: 13px;
  }

  .chat-intro-view {
    padding: 17px 16px 15px;
  }

  .chat-welcome-block h2 {
    font-size: 18px;
  }

  .chat-field input,
  .chat-field select {
    height: 38px;
    font-size: 11px;
  }

  .chat-start-btn {
    height: 41px;
  }

  .chat-thread {
    padding: 16px 14px 11px;
  }

  .chat-quick-replies {
    padding-inline: 14px;
  }

  .chat-composer {
    padding-inline: 9px;
  }

  .product-dialog {
    width: calc(100vw - 20px);
    max-height: calc(100dvh - 20px);
  }

  .product-dialog-shell {
    display: block;
    max-height: calc(100dvh - 20px);
    overflow-y: auto;
  }

  .dialog-media {
    min-height: 0;
    aspect-ratio: 16 / 10;
  }

  .dialog-media img {
    min-height: 0;
    aspect-ratio: 16 / 10;
  }

  .dialog-close {
    position: fixed;
    top: 22px;
    right: 22px;
  }

  .dialog-content {
    max-height: none;
    padding: 25px 21px 27px;
  }

  .dialog-content h2 {
    padding-right: 28px;
    font-size: 26px;
  }

  .feature-list,
  .spec-list {
    grid-template-columns: 1fr;
  }

  .dialog-actions .btn {
    flex: 1;
    min-width: 120px;
  }

  .toast {
    bottom: 78px;
  }
}

@media (max-width: 430px) {
  .brand-company {
    font-size: 7.5px;
  }

  .brand-name {
    font-size: 15px;
  }

  .brand {
    gap: 8px;
  }

  .brand-logo {
    width: 126px;
    height: 24px;
  }

  .brand-type {
    padding-left: 9px;
  }

  .utility-brand {
    white-space: normal;
    text-align: center;
    line-height: 1.5;
  }

  .hero-title {
    font-size: clamp(36px, 10.5vw, 46px);
  }

  .hero-stats {
    gap: 20px;
  }

  .hero-stat strong {
    font-size: 15px;
  }

  .value-band {
    display: block;
  }

  .value-item {
    min-height: 0;
    padding: 16px 14px;
    border-top: 1px solid var(--line);
  }

  .value-item:first-child {
    border-top: 0;
  }

  .value-item h2 {
    font-size: 13px;
  }

  .value-item p {
    max-width: none;
  }

  .filter-chip {
    padding-inline: 9px;
    font-size: 10.5px;
  }

  .chat-field-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .contact-channel strong,
  .contact-channel a {
    font-size: 11px;
  }
}

@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;
    scroll-behavior: auto !important;
  }
}


#service-title span,
#contact-title span {
  display: block;
}

#contact-title span:empty {
  display: none;
}


@media (max-width: 380px) {
  .brand-company {
    display: none;
  }

  .brand-logo {
    width: 118px;
    height: 22px;
  }

  .brand-name {
    font-size: 15px;
  }
}