/* ==========================================================================
   ChipLinks Design System  ·  精密运动控制
   ========================================================================== */

:root {
  /* 基色 */
  --ink: #061a2e;
  --ink-2: #0b2740;
  --ink-3: #123453;
  --ink-soft: #1b4066;

  --brand: #0a6ad0;
  --brand-600: #0857ad;
  --brand-400: #2f92f0;
  --brand-50: #eaf3fe;

  --signal: #00bfa5;
  --signal-soft: #e2f8f4;

  --amber: #f5a623;
  --amber-soft: #fff4e2;

  --paper: #ffffff;
  --surface: #f4f7fb;
  --surface-2: #eaf0f8;
  --border: #dde6f1;
  --border-strong: #c6d4e6;

  --text: #0b1f36;
  --text-2: #47607b;
  --text-3: #7a8fa6;

  /* 语义色 */
  --ok: #12a06a;
  --warn: #e08600;

  /* 排版 */
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB",
    system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", "Cascadia Mono", Consolas, "Liberation Mono",
    Menlo, monospace;

  /* 尺寸 */
  --radius-s: 6px;
  --radius: 10px;
  --radius-l: 16px;
  --radius-xl: 24px;

  --shadow-s: 0 1px 2px rgba(11, 39, 64, 0.06), 0 1px 3px rgba(11, 39, 64, 0.05);
  --shadow: 0 4px 12px rgba(11, 39, 64, 0.07), 0 1px 3px rgba(11, 39, 64, 0.05);
  --shadow-l: 0 16px 40px rgba(11, 39, 64, 0.1), 0 4px 12px rgba(11, 39, 64, 0.05);
  --shadow-xl: 0 32px 72px rgba(8, 27, 46, 0.18);

  --wrap: 1240px;
  --wrap-narrow: 900px;
  --header-h: 68px;
}

/* ---------- reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img {
  max-width: 100%;
  height: auto;
  border-style: none;
}
a {
  color: var(--brand);
  text-decoration: none;
  transition: color 0.18s;
}
a:hover {
  color: var(--brand-400);
}
h1,
h2,
h3,
h4,
h5 {
  margin: 0;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text);
}
p {
  margin: 0 0 1em;
}
ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}
button {
  cursor: pointer;
  border: 0;
  background: none;
}
table {
  border-collapse: collapse;
  width: 100%;
}
:focus-visible {
  outline: 2px solid var(--brand-400);
  outline-offset: 2px;
  border-radius: 3px;
}

/* ---------- 布局 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}
.wrap-narrow {
  width: 100%;
  max-width: var(--wrap-narrow);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: 76px 0;
}
.section-sm {
  padding: 52px 0;
}
.section-tight {
  padding: 40px 0;
}
.bg-surface {
  background: var(--surface);
}
.bg-ink {
  background: var(--ink);
  color: #fff;
}
.grid {
  display: grid;
  gap: 20px;
}
.g-2 {
  grid-template-columns: repeat(2, 1fr);
}
.g-3 {
  grid-template-columns: repeat(3, 1fr);
}
.g-4 {
  grid-template-columns: repeat(4, 1fr);
}
.flex {
  display: flex;
  gap: 12px;
}
.between {
  justify-content: space-between;
}
.center {
  align-items: center;
}
.wrapf {
  flex-wrap: wrap;
}
.mt-0 {
  margin-top: 0;
}
.mb-0 {
  margin-bottom: 0;
}

/* ---------- 标题组 ---------- */
.sec-head {
  margin-bottom: 40px;
  max-width: 760px;
}
.sec-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 12px;
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--signal);
  border-radius: 2px;
}
.sec-head.center .eyebrow::after {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--signal);
  border-radius: 2px;
}
.bg-ink .eyebrow {
  color: var(--signal);
}
.sec-title {
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.22;
}
.sec-sub {
  margin-top: 14px;
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.8;
}
.bg-ink .sec-title {
  color: #fff;
}
.bg-ink .sec-sub {
  color: rgba(255, 255, 255, 0.68);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border-radius: var(--radius-s);
  font-size: 14.5px;
  font-weight: 600;
  white-space: nowrap;
  transition: all 0.18s ease;
  border: 1px solid transparent;
}
.btn svg {
  width: 16px;
  height: 16px;
  flex: none;
}
.btn-primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 2px 8px rgba(10, 106, 208, 0.28);
}
.btn-primary:hover {
  background: var(--brand-600);
  color: #fff;
  box-shadow: 0 6px 18px rgba(10, 106, 208, 0.32);
  transform: translateY(-1px);
}
.btn-signal {
  background: var(--signal);
  color: #04241f;
}
.btn-signal:hover {
  background: #00a892;
  color: #04241f;
}
.btn-ghost {
  border-color: var(--border-strong);
  color: var(--text);
  background: #fff;
}
.btn-ghost:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: var(--brand-50);
}
.btn-onink {
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}
.btn-onink:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}
.btn-sm {
  height: 36px;
  padding: 0 15px;
  font-size: 13.5px;
}
.btn-lg {
  height: 50px;
  padding: 0 30px;
  font-size: 15.5px;
}
.btn-block {
  width: 100%;
}

/* ---------- 徽标 / 标签 ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 23px;
  padding: 0 9px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  background: var(--surface-2);
  color: var(--text-2);
  white-space: nowrap;
}
.tag-brand {
  background: var(--brand-50);
  color: var(--brand-600);
}
.tag-signal {
  background: var(--signal-soft);
  color: #00796b;
}
.tag-amber {
  background: var(--amber-soft);
  color: #9a6200;
}
.tag-ink {
  background: var(--ink-2);
  color: #fff;
}
.tag-mono {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.02em;
}
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--signal);
  flex: none;
}

/* 参数可勾选标记 ✓ */
.chk {
  color: var(--signal);
  font-weight: 700;
}
.dash {
  color: var(--border-strong);
}

/* ---------- 卡片 ---------- */
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.22s ease;
}
.card-pad {
  padding: 24px;
}
.card-hover:hover {
  border-color: var(--brand-400);
  box-shadow: var(--shadow-l);
  transform: translateY(-3px);
}

/* ---------- 页头 ---------- */
.topbar {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.72);
  font-size: 12.5px;
  height: 34px;
  display: flex;
  align-items: center;
}
.topbar a {
  color: rgba(255, 255, 255, 0.72);
}
.topbar a:hover {
  color: #fff;
}
.topbar .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.topbar-info {
  display: flex;
  gap: 18px;
  align-items: center;
  min-width: 0;
}
.topbar-info span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.topbar-info svg {
  width: 13px;
  height: 13px;
  opacity: 0.6;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.2s;
}
.site-header.stuck {
  box-shadow: 0 4px 20px rgba(11, 39, 64, 0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: var(--header-h);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
  color: var(--ink);
}
.logo:hover {
  color: var(--ink);
}
.logo-mark {
  width: 38px;
  height: 38px;
  flex: none;
}
.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.logo-cn {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.01em;
}
.logo-en {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--text-3);
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 8px;
  flex: 1;
  min-width: 0;
}
.nav > li {
  position: relative;
}
.nav > li > a {
  display: flex;
  align-items: center;
  gap: 4px;
  height: var(--header-h);
  padding: 0 13px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text);
  position: relative;
  white-space: nowrap;
}
.nav > li > a:hover,
.nav > li.current > a {
  color: var(--brand);
}
.nav > li > a::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 0;
  height: 2.5px;
  border-radius: 2px 2px 0 0;
  background: var(--brand);
  transform: scaleX(0);
  transition: transform 0.2s;
}
.nav > li > a:hover::after,
.nav > li.current > a::after {
  transform: scaleX(1);
}
.nav .caret {
  width: 9px;
  height: 9px;
  opacity: 0.5;
  transition: transform 0.2s;
}
.nav > li:hover .caret {
  transform: rotate(180deg);
}

/* mega menu */
.mega {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  width: min(920px, calc(100vw - 48px));
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-l);
  box-shadow: var(--shadow-xl);
  padding: 26px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.22s ease;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px 26px;
}
.nav > li:hover .mega {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.mega-col h4 {
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  padding-bottom: 9px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.mega-col a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
  border-radius: 4px;
  transition: all 0.15s;
}
.mega-col a:hover {
  color: var(--brand);
  padding-left: 6px;
}
.mega-col a .n {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  margin-left: 6px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}
.lang-switch {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  overflow: hidden;
  height: 34px;
}
.lang-switch a {
  padding: 0 10px;
  font-size: 12.5px;
  font-weight: 700;
  line-height: 32px;
  color: var(--text-2);
}
.lang-switch a.on {
  background: var(--ink);
  color: #fff;
}
.header-search {
  position: relative;
}
.header-search input {
  width: 190px;
  height: 36px;
  padding: 0 34px 0 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  background: var(--surface);
  font-size: 13.5px;
  outline: none;
  transition: all 0.2s;
}
.header-search input:focus {
  width: 240px;
  background: #fff;
  border-color: var(--brand-400);
}
.header-search svg {
  position: absolute;
  right: 11px;
  top: 50%;
  transform: translateY(-50%);
  width: 15px;
  height: 15px;
  color: var(--text-3);
  pointer-events: none;
}

.burger {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-s);
  color: var(--ink);
}
.burger:hover {
  background: var(--surface);
}
.burger svg {
  width: 22px;
  height: 22px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--ink);
  color: #fff;
  overflow: hidden;
  padding: 68px 0 76px;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(900px 420px at 78% -10%, rgba(0, 191, 165, 0.2), transparent 62%),
    radial-gradient(760px 400px at 6% 106%, rgba(10, 106, 208, 0.32), transparent 62%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  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: 56px 56px;
  mask-image: radial-gradient(circle at 50% 40%, #000 12%, transparent 76%);
  -webkit-mask-image: radial-gradient(circle at 50% 40%, #000 12%, transparent 76%);
}
.hero > .wrap {
  position: relative;
  z-index: 2;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.06fr 0.94fr;
  gap: 56px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 30px;
  padding: 0 14px;
  border-radius: 100px;
  background: rgba(0, 191, 165, 0.13);
  border: 1px solid rgba(0, 191, 165, 0.3);
  color: #7ff0e0;
  font-size: 12.5px;
  font-weight: 600;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: clamp(30px, 4.1vw, 48px);
  line-height: 1.15;
  color: #fff;
  letter-spacing: -0.02em;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(96deg, #4dd8c4, #39b6ff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-lead {
  margin-top: 20px;
  font-size: 16.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.72);
  max-width: 560px;
}
.hero-cta {
  display: flex;
  gap: 12px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 44px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  flex-wrap: wrap;
}
.hero-stats .k {
  font-family: var(--font-mono);
  font-size: 27px;
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
}
.hero-stats .k sup {
  font-size: 13px;
  color: var(--signal);
  margin-left: 2px;
}
.hero-stats .v {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.55);
  margin-top: 3px;
}

/* hero 右侧：型号速查卡 */
.quickfind {
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-l);
  padding: 24px;
  backdrop-filter: blur(10px);
}
.quickfind h3 {
  color: #fff;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 5px;
}
.quickfind h3 svg {
  width: 17px;
  height: 17px;
  color: var(--signal);
}
.quickfind .hint {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 16px;
}
.qf-input {
  position: relative;
  margin-bottom: 12px;
}
.qf-input input {
  width: 100%;
  height: 46px;
  padding: 0 44px 0 15px;
  border-radius: var(--radius-s);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(4, 16, 30, 0.55);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 14px;
  outline: none;
}
.qf-input input::placeholder {
  color: rgba(255, 255, 255, 0.34);
  font-family: var(--font-sans);
}
.qf-input input:focus {
  border-color: var(--signal);
  box-shadow: 0 0 0 3px rgba(0, 191, 165, 0.16);
}
.qf-input svg {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  width: 17px;
  height: 17px;
  color: var(--signal);
}
.qf-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.qf-chips button {
  padding: 5px 11px;
  border-radius: 100px;
  border: 1px solid rgba(255, 255, 255, 0.17);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.8);
  font-size: 12px;
  font-family: var(--font-mono);
  transition: all 0.16s;
}
.qf-chips button:hover {
  background: var(--signal);
  border-color: var(--signal);
  color: #04241f;
}
.qf-result {
  margin-top: 14px;
  max-height: 232px;
  overflow-y: auto;
}
.qf-result a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 11px;
  border-radius: var(--radius-s);
  color: #fff;
  font-size: 13.5px;
  border: 1px solid transparent;
}
.qf-result a:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.14);
}
.qf-result .m {
  font-family: var(--font-mono);
  font-weight: 600;
}
.qf-result .c {
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.5);
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.qf-result .empty {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  padding: 10px 0;
}

/* ---------- 品牌墙 ---------- */
.brands {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.brand-pill {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 11px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  font-weight: 700;
  font-size: 14px;
  color: var(--text);
  transition: all 0.2s;
}
.brand-pill:hover {
  border-color: var(--brand-400);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
  color: var(--brand);
}
.brand-pill .role {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-3);
  padding-left: 9px;
  border-left: 1px solid var(--border);
  font-family: var(--font-sans);
}

/* ---------- 产品线卡片 ---------- */
.pline {
  display: block;
  position: relative;
  padding: 26px 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-l);
  color: var(--text);
  overflow: hidden;
  transition: all 0.24s ease;
}
.pline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--brand);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.28s ease;
}
.pline:hover {
  border-color: var(--brand-400);
  box-shadow: var(--shadow-l);
  transform: translateY(-4px);
  color: var(--text);
}
.pline:hover::before {
  transform: scaleY(1);
}
.pline-ico {
  width: 46px;
  height: 46px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: var(--brand-50);
  color: var(--brand);
  margin-bottom: 16px;
}
.pline-ico svg {
  width: 23px;
  height: 23px;
}
.pline:nth-child(3n + 2) .pline-ico {
  background: var(--signal-soft);
  color: #00897b;
}
.pline:nth-child(3n + 3) .pline-ico {
  background: var(--amber-soft);
  color: #b87400;
}
.pline h3 {
  font-size: 17px;
  margin-bottom: 7px;
}
.pline p {
  font-size: 13.5px;
  color: var(--text-2);
  margin: 0 0 14px;
  line-height: 1.7;
  min-height: 46px;
}
.pline .sub {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding-top: 13px;
  border-top: 1px dashed var(--border);
}
.pline .sub span {
  font-size: 12px;
  color: var(--text-2);
  background: var(--surface);
  padding: 3px 8px;
  border-radius: 4px;
}
.pline .more {
  position: absolute;
  right: 22px;
  bottom: 22px;
  color: var(--brand);
  opacity: 0;
  transform: translateX(-6px);
  transition: all 0.24s;
}
.pline:hover .more {
  opacity: 1;
  transform: translateX(0);
}
.pline .count {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-3);
}

/* ---------- 型号表 ---------- */
.table-tools {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.table-tools .grow {
  flex: 1;
  min-width: 200px;
}
.input {
  width: 100%;
  height: 42px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  background: #fff;
  font-size: 14px;
  outline: none;
  transition: all 0.18s;
}
.input:focus {
  border-color: var(--brand-400);
  box-shadow: 0 0 0 3px var(--brand-50);
}
.select {
  height: 42px;
  padding: 0 34px 0 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  background: #fff
    url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2347607b' stroke-width='2.4' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E")
    no-repeat right 11px center/14px;
  font-size: 13.5px;
  appearance: none;
  outline: none;
  cursor: pointer;
}
.select:focus {
  border-color: var(--brand-400);
}

.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  -webkit-overflow-scrolling: touch;
}
table.spec {
  font-size: 13.5px;
  min-width: 560px;
}
table.spec thead th {
  background: var(--ink);
  color: #fff;
  font-weight: 600;
  font-size: 12.5px;
  letter-spacing: 0.02em;
  padding: 12px 14px;
  text-align: left;
  white-space: nowrap;
  position: relative;
}
table.spec thead th:first-child {
  border-top-left-radius: var(--radius);
  position: sticky;
  left: 0;
  z-index: 3;
  background: var(--ink);
  box-shadow: 1px 0 0 rgba(255, 255, 255, 0.13);
}
table.spec thead th:last-child {
  border-top-right-radius: var(--radius);
}
table.spec tbody td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text-2);
  vertical-align: middle;
}
table.spec tbody tr:last-child td {
  border-bottom: 0;
}
table.spec tbody tr:hover td {
  background: var(--brand-50);
}
table.spec tbody td:first-child {
  position: sticky;
  left: 0;
  background: #fff;
  z-index: 2;
  box-shadow: 1px 0 0 var(--border);
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--ink);
  font-size: 13px;
  white-space: nowrap;
}
table.spec tbody tr:hover td:first-child {
  background: var(--brand-50);
}
table.spec tbody td:first-child a {
  color: var(--ink);
}
table.spec tbody td:first-child a:hover {
  color: var(--brand);
}
table.spec .num {
  font-family: var(--font-mono);
}

/* ---------- 系列块 ---------- */
.series {
  border: 1px solid var(--border);
  border-radius: var(--radius-l);
  background: #fff;
  overflow: hidden;
  margin-bottom: 26px;
}
.series-head {
  padding: 22px 24px;
  background: linear-gradient(180deg, var(--surface), #fff);
  border-bottom: 1px solid var(--border);
}
.series-head h3 {
  font-size: 19px;
  display: flex;
  align-items: center;
  gap: 11px;
  flex-wrap: wrap;
}
.series-head h3 .tag {
  font-family: var(--font-mono);
  font-weight: 700;
}
.series-head p {
  margin: 9px 0 0;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  max-width: 900px;
}
.series-body {
  padding: 18px 20px 20px;
}

/* ---------- 侧栏布局 ---------- */
.layout-side {
  display: grid;
  grid-template-columns: 258px 1fr;
  gap: 36px;
  align-items: start;
}
.side-nav {
  position: sticky;
  top: 88px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  overflow: hidden;
}
.side-nav-title {
  padding: 15px 18px;
  font-size: 13.5px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: #fff;
  background: var(--ink);
}
.side-nav ul {
  padding: 8px;
}
.side-nav li > a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 9px 12px;
  border-radius: var(--radius-s);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text);
}
.side-nav li > a:hover {
  background: var(--surface);
  color: var(--brand);
}
.side-nav li.on > a {
  background: var(--brand-50);
  color: var(--brand-600);
  font-weight: 700;
}
.side-nav li > a .n {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
}
.side-more {
  display: block;
  padding: 11px 18px 13px;
  border-top: 1px dashed var(--border);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--brand-600, #067a6b);
}
.side-more:hover {
  color: var(--signal);
}
.side-nav .grp {
  padding: 14px 12px 6px;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* 侧栏联系卡 */
.side-cta {
  margin-top: 18px;
  padding: 22px;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.side-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(300px 180px at 100% 0%, rgba(0, 191, 165, 0.24), transparent 70%);
}
.side-cta > * {
  position: relative;
}
.side-cta h4 {
  color: #fff;
  font-size: 15.5px;
  margin-bottom: 7px;
}
.side-cta p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.7;
  margin-bottom: 16px;
}
.side-cta .tel {
  display: block;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--signal);
  margin-bottom: 14px;
}

/* ---------- 文章卡 ---------- */
.post {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.22s;
  height: 100%;
}
.post:hover {
  border-color: var(--brand-400);
  box-shadow: var(--shadow-l);
  transform: translateY(-3px);
}
.post-thumb {
  aspect-ratio: 16 / 9;
  background: var(--surface-2);
  overflow: hidden;
  position: relative;
}
.post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}
.post:hover .post-thumb img {
  transform: scale(1.05);
}
.post-thumb .ph {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--border-strong);
}
.post-body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.post-cat {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 9px;
  letter-spacing: 0.02em;
}
.post h3 {
  font-size: 15.5px;
  line-height: 1.5;
  margin-bottom: 9px;
}
.post h3 a {
  color: var(--text);
}
.post h3 a:hover {
  color: var(--brand);
}
.post p {
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.7;
  margin: 0 0 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-3);
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

/* 文章列表项 */
.post-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 22px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  transition: all 0.2s;
}
.post-row:hover {
  border-color: var(--brand-400);
  box-shadow: var(--shadow);
}
.post-row .thumb {
  aspect-ratio: 16/10;
  border-radius: var(--radius-s);
  overflow: hidden;
  background: var(--surface-2);
}
.post-row .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.post-row h3 {
  font-size: 17px;
  margin-bottom: 8px;
}
.post-row h3 a {
  color: var(--text);
}
.post-row h3 a:hover {
  color: var(--brand);
}
.post-row p {
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 文章正文 ---------- */
.prose {
  font-size: 15.5px;
  line-height: 1.9;
  color: #1c334d;
  max-width: 100%;
}
.prose h2 {
  font-size: 22px;
  margin: 40px 0 16px;
  padding-left: 14px;
  border-left: 4px solid var(--brand);
  scroll-margin-top: 96px;
}
.prose h3 {
  font-size: 18px;
  margin: 30px 0 12px;
  scroll-margin-top: 96px;
}
.prose h4 {
  font-size: 16px;
  margin: 24px 0 10px;
}
.prose p {
  margin: 0 0 18px;
}
.prose ul,
.prose ol {
  margin: 0 0 18px;
  padding-left: 22px;
}
.prose ul li {
  list-style: none;
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
}
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-400);
}
.prose ol {
  list-style: decimal;
}
.prose ol li {
  margin-bottom: 8px;
}
.prose img {
  border-radius: var(--radius);
  margin: 20px 0;
  border: 1px solid var(--border);
}
.prose blockquote {
  margin: 22px 0;
  padding: 16px 20px;
  background: var(--brand-50);
  border-left: 3px solid var(--brand);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  color: var(--ink-2);
}
.prose blockquote p:last-child {
  margin: 0;
}
.prose code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--surface-2);
  padding: 2px 6px;
  border-radius: 4px;
  color: #b4004e;
}
.prose table {
  margin: 22px 0;
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.prose table th {
  background: var(--surface);
  padding: 11px 13px;
  text-align: left;
  font-weight: 700;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  color: var(--ink);
}
.prose table td {
  padding: 10px 13px;
  border-bottom: 1px solid var(--border);
  color: var(--text-2);
}
.prose table tr:last-child td {
  border-bottom: 0;
}

/* ---------- 面包屑 ---------- */
.crumbs {
  font-size: 13px;
  color: var(--text-3);
  padding: 16px 0;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.crumbs a {
  color: var(--text-2);
}
.crumbs a:hover {
  color: var(--brand);
}
.crumbs .sep {
  opacity: 0.45;
}
.crumbs b {
  color: var(--text);
  font-weight: 600;
}

/* ---------- 型号详情规格清单 ---------- */
.spec-list {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
}
.spec-list .row {
  display: grid;
  grid-template-columns: 190px 1fr;
  border-bottom: 1px solid var(--border);
}
.spec-list .row:last-child {
  border-bottom: 0;
}
.spec-list .k {
  padding: 12px 16px;
  background: var(--surface);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-2);
  border-right: 1px solid var(--border);
}
.spec-list .v {
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text-2);
  font-family: var(--font-mono);
}
.spec-list .v.txt {
  font-family: var(--font-sans);
}

/* 关键参数 highlight */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 30px;
}
.kpi {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  border-top: 3px solid var(--brand);
}
.kpi .lb {
  font-size: 12px;
  color: var(--text-3);
  margin-bottom: 7px;
  font-weight: 600;
}
.kpi .vl {
  font-family: var(--font-mono);
  font-size: 21px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.2;
}
.kpi .un {
  font-size: 12px;
  color: var(--text-3);
  margin-left: 3px;
}

/* ---------- 特性网格 ---------- */
.feat {
  display: flex;
  gap: 15px;
  padding: 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.feat-ico {
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: 9px;
  display: grid;
  place-items: center;
  background: var(--brand-50);
  color: var(--brand);
}
.feat-ico svg {
  width: 19px;
  height: 19px;
}
.feat h4 {
  font-size: 14.5px;
  margin-bottom: 5px;
}
.feat p {
  font-size: 13px;
  color: var(--text-2);
  margin: 0;
  line-height: 1.7;
}

/* ---------- 行业方案 ---------- */
.ind {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 200px;
  display: flex;
  align-items: flex-end;
  padding: 22px;
  color: #fff;
  background: var(--ink-2);
  transition: all 0.25s;
}
.ind::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 26, 46, 0.15), rgba(6, 26, 46, 0.92));
}
.ind > * {
  position: relative;
  z-index: 2;
}
.ind:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  color: #fff;
}
.ind h3 {
  color: #fff;
  font-size: 16.5px;
  margin-bottom: 6px;
}
.ind p {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.72);
  margin: 0;
  line-height: 1.6;
}

/* ---------- FAQ ---------- */
.faq details {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  margin-bottom: 10px;
  overflow: hidden;
  transition: all 0.2s;
}
.faq details[open] {
  border-color: var(--brand-400);
  box-shadow: var(--shadow);
}
.faq summary {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  list-style: none;
  color: var(--ink);
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary::after {
  content: "";
  width: 10px;
  height: 10px;
  flex: none;
  border-right: 2px solid var(--text-3);
  border-bottom: 2px solid var(--text-3);
  transform: rotate(45deg) translateY(-3px);
  transition: transform 0.22s;
}
.faq details[open] summary::after {
  transform: rotate(-135deg) translateY(-3px);
  border-color: var(--brand);
}
.faq .ans {
  padding: 0 20px 18px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.85;
  border-top: 1px solid var(--border);
  padding-top: 15px;
}

/* ---------- CTA 带 ---------- */
.cta-band {
  position: relative;
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius-l);
  padding: 44px 46px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(500px 260px at 88% 0%, rgba(0, 191, 165, 0.24), transparent 68%),
    radial-gradient(400px 240px at 8% 100%, rgba(10, 106, 208, 0.3), transparent 68%);
}
.cta-band > * {
  position: relative;
}
.cta-band h2 {
  color: #fff;
  font-size: 25px;
  margin-bottom: 8px;
}
.cta-band p {
  color: rgba(255, 255, 255, 0.68);
  margin: 0;
  font-size: 14.5px;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.6);
  font-size: 13.5px;
  padding: 56px 0 0;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 44px;
}
.site-footer h4 {
  color: #fff;
  font-size: 14px;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.site-footer a {
  color: rgba(255, 255, 255, 0.6);
  display: block;
  padding: 5px 0;
  font-size: 13.5px;
}
.site-footer a:hover {
  color: #fff;
}
.footer-brand .logo-cn {
  color: #fff;
}
.footer-brand .logo-en {
  color: rgba(255, 255, 255, 0.4);
}
.footer-about {
  margin: 16px 0;
  line-height: 1.85;
  font-size: 13px;
  max-width: 340px;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-contact span {
  display: flex;
  gap: 9px;
  align-items: flex-start;
}
.footer-contact svg {
  width: 14px;
  height: 14px;
  margin-top: 4px;
  flex: none;
  opacity: 0.5;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12.5px;
}
.footer-bottom a {
  display: inline;
  padding: 0;
}
.footer-bottom .links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

/* ---------- 浮动联系 ---------- */
.floaty {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 800;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.floaty a,
.floaty button {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #fff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-l);
  color: var(--ink);
  transition: all 0.2s;
  position: relative;
}
.floaty a:hover,
.floaty button:hover {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  transform: translateY(-2px);
}
.floaty svg {
  width: 20px;
  height: 20px;
}
.floaty .to-top {
  opacity: 0;
  pointer-events: none;
}
.floaty .to-top.show {
  opacity: 1;
  pointer-events: auto;
}

/* ---------- 移动导航 ---------- */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: #fff;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.mobile-nav.open {
  transform: translateX(0);
}
.mobile-nav-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  flex: none;
}
.mobile-nav-close {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-s);
}
.mobile-nav-close svg {
  width: 22px;
  height: 22px;
}
.mobile-nav nav {
  padding: 10px 12px 40px;
}
.mobile-nav .m-group {
  border-bottom: 1px solid var(--border);
}
.mobile-nav .m-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 8px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
  text-align: left;
}
.mobile-nav .m-toggle svg {
  width: 17px;
  height: 17px;
  color: var(--text-3);
  transition: transform 0.22s;
}
.mobile-nav .m-group.open .m-toggle svg {
  transform: rotate(180deg);
  color: var(--brand);
}
.mobile-nav .m-sub {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.mobile-nav .m-group.open .m-sub {
  max-height: 1400px;
}
.mobile-nav .m-sub-in {
  padding: 2px 8px 14px;
}
.mobile-nav .m-sub-in .h {
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  padding: 10px 0 6px;
}
.mobile-nav .m-sub-in a {
  display: block;
  padding: 8px 10px;
  border-radius: var(--radius-s);
  font-size: 14px;
  color: var(--text-2);
}
.mobile-nav .m-sub-in a:active {
  background: var(--surface);
}
.mobile-nav .m-link {
  display: flex;
  padding: 15px 8px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
  border-bottom: 1px solid var(--border);
}
.mobile-nav-cta {
  padding: 20px;
  margin-top: auto;
  border-top: 1px solid var(--border);
  background: var(--surface);
  flex: none;
}

/* ---------- 搜索页 ---------- */
.search-hero {
  background: var(--ink);
  color: #fff;
  padding: 40px 0;
}
.search-hero h1 {
  color: #fff;
  font-size: 24px;
  margin-bottom: 16px;
}
.search-box {
  display: flex;
  gap: 10px;
}
.search-box input {
  flex: 1;
  height: 50px;
  padding: 0 20px;
  border-radius: var(--radius-s);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(4, 16, 30, 0.5);
  color: #fff;
  font-size: 15px;
  outline: none;
}
.search-box input:focus {
  border-color: var(--signal);
}
.search-box input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

/* ---------- 分页 ---------- */
.pager {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-top: 40px;
  flex-wrap: wrap;
}
.pager a,
.pager span {
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-s);
  font-size: 14px;
  color: var(--text-2);
  background: #fff;
}
.pager a:hover {
  border-color: var(--brand);
  color: var(--brand);
}
.pager .on {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
  font-weight: 700;
}

/* ---------- 工具类 ---------- */
.mono {
  font-family: var(--font-mono);
}
.muted {
  color: var(--text-3);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.empty-state {
  padding: 56px 20px;
  text-align: center;
  color: var(--text-3);
}
.empty-state svg {
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  opacity: 0.4;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .nav,
  .header-search {
    display: none;
  }
  .burger {
    display: flex;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .layout-side {
    grid-template-columns: 1fr;
    gap: 26px;
  }
  .side-nav {
    position: static;
  }
  .side-nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
  }
  .side-nav li > a {
    border: 1px solid var(--border);
  }
  .side-nav .grp {
    width: 100%;
  }
  .g-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}
@media (max-width: 720px) {
  body {
    font-size: 14.5px;
  }
  .wrap,
  .wrap-narrow {
    padding: 0 16px;
  }
  .section {
    padding: 50px 0;
  }
  .section-sm {
    padding: 36px 0;
  }
  .g-2,
  .g-3,
  .g-4 {
    grid-template-columns: 1fr;
  }
  .hero {
    padding: 44px 0 52px;
  }
  .hero-stats {
    gap: 24px;
  }
  .topbar-info span:nth-child(n + 2) {
    display: none;
  }
  .post-row {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .post-row .thumb {
    aspect-ratio: 16/9;
  }
  .spec-list .row {
    grid-template-columns: 1fr;
  }
  .spec-list .k {
    border-right: 0;
    border-bottom: 1px solid var(--border);
    padding-bottom: 6px;
  }
  .cta-band {
    padding: 32px 24px;
    text-align: left;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .floaty {
    right: 14px;
    bottom: 16px;
  }
  .floaty a,
  .floaty button {
    width: 42px;
    height: 42px;
  }
}
@media print {
  .site-header,
  .site-footer,
  .floaty,
  .topbar {
    display: none;
  }
}

/* ==================================================================
   型号详情页：产品简介 + 资料下载
   ================================================================== */
.model-intro {
  margin-bottom: 40px;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--border);
}
.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}
/* 无配图的型号：简介占满整栏，避免正文被压在图位那一列 */
.intro-grid.is-text-only {
  grid-template-columns: minmax(0, 1fr);
}
.intro-media {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.intro-fig {
  display: block;
  flex: 1 1 140px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.intro-fig:hover {
  border-color: var(--signal);
  box-shadow: 0 6px 20px rgba(0, 191, 165, 0.14);
}
.intro-fig img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 190px;
  object-fit: contain;
}
.intro-text p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--text-2, #41546b);
  text-align: justify;
}
.intro-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--signal-soft);
  color: #0a6c5e;
  font-size: 13px;
}
.intro-status b {
  color: #06544a;
}
.intro-status .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 3px rgba(0, 191, 165, 0.22);
}

/* ---- 资料下载 ---- */
.docs-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
}
.docs-count {
  font-size: 12.5px;
  color: var(--muted, #7b8ca0);
}
.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}
.docs-group {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 18px 10px;
  background: #fff;
}
.docs-group-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.02em;
  margin-bottom: 10px;
  padding-bottom: 9px;
  border-bottom: 1px dashed var(--border);
}
.docs-group ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.docs-group li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
}
.docs-group li a:first-child {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  flex: 1;
  font-size: 13.5px;
  color: var(--text-2, #33475e);
  line-height: 1.5;
}
.docs-group li a:first-child:hover .dl {
  color: var(--signal);
  text-decoration: underline;
}
.dl {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.dk {
  flex: 0 0 auto;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 3px 6px;
  border-radius: 5px;
  line-height: 1;
}
.k-pdf {
  background: #fdeceb;
  color: #c0392b;
}
.k-xls {
  background: #e6f6ec;
  color: #1e8449;
}
.k-cad {
  background: #eaf0fb;
  color: #2c5fb8;
}
.k-doc {
  background: #eef0fb;
  color: #4b4fbf;
}
.k-img,
.k-svg {
  background: #f3ecfb;
  color: #7b3fb8;
}
.k-link {
  background: #f1f4f8;
  color: #5c6b7e;
}
.dget {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--signal);
  border: 1px solid rgba(0, 191, 165, 0.4);
  border-radius: 7px;
  padding: 3px 9px;
  white-space: nowrap;
  transition: background 0.18s, color 0.18s;
}
.dget:hover {
  background: var(--signal);
  color: #fff;
}

@media (max-width: 860px) {
  .intro-grid {
    grid-template-columns: 1fr;
  }
  .docs-grid {
    grid-template-columns: 1fr;
  }
}

/* ---- 资料下载中心 ---- */
.doc-filter {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 26px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fff;
  position: sticky;
  top: 76px;
  z-index: 5;
}
.doc-filter input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: none;
  font-size: 14px;
  color: var(--ink);
  background: transparent;
}
.doc-hit {
  font-size: 12.5px;
  color: var(--muted, #7b8ca0);
  white-space: nowrap;
}
.docsec {
  margin-bottom: 34px;
}
.doclist {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
}
.docrow {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 16px;
  border-bottom: 1px solid #f0f4f9;
  font-size: 13.5px;
}
.docrow:last-child {
  border-bottom: 0;
}
.docrow:hover {
  background: #fafcfe;
}
.docrow .dl {
  flex: 1;
  min-width: 0;
  color: var(--text-2, #33475e);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.docrow .dl:hover {
  color: var(--signal);
  text-decoration: underline;
}
.docrow .dmodel {
  flex: 0 0 auto;
  font-size: 12.5px;
}
.docrow .dmodel a {
  color: var(--muted, #7b8ca0);
}
.docrow .dmodel a:hover {
  color: var(--signal);
}
@media (max-width: 720px) {
  .docrow .dmodel {
    display: none;
  }
}

/* ==================================================================
   站内搜索结果
   ================================================================== */
.sgroup {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 15px;
  margin: 30px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.sgroup span {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted, #7b8ca0);
}
.sgrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 10px;
}
.scard {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  transition: border-color 0.16s, box-shadow 0.16s;
}
.scard:hover {
  border-color: var(--signal);
  box-shadow: 0 6px 18px rgba(0, 191, 165, 0.13);
}
.scard b {
  font-size: 14.5px;
  color: var(--ink);
}
.scard span {
  font-size: 12px;
  color: var(--muted, #7b8ca0);
}
.slist {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
}
.srow {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid #f0f4f9;
  font-size: 13.5px;
}
.srow:last-child {
  border-bottom: 0;
}
.srow:hover {
  background: #fafcfe;
}
.srow b {
  flex: 0 0 auto;
  max-width: 46%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--ink);
  font-size: 13.5px;
}
.srow b i {
  font-style: normal;
  font-weight: 400;
  color: var(--muted, #7b8ca0);
  font-size: 12px;
}
.srow span {
  flex: 1;
  min-width: 0;
  color: var(--muted, #7b8ca0);
  font-size: 12.5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
mark {
  background: rgba(0, 191, 165, 0.18);
  color: #056d5e;
  border-radius: 3px;
  padding: 0 2px;
}

/* 搜索结果：分组 / 加载更多 / 热门词 */
.sres {
  margin-bottom: 10px;
}
.smore {
  display: block;
  width: 100%;
  margin-top: 10px;
  padding: 10px 14px;
  border: 1px dashed var(--border);
  border-radius: 10px;
  background: #fff;
  color: #067a6b;
  font-size: 13px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.smore:hover {
  background: var(--signal-soft);
  border-color: var(--signal);
}
.schips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.schip {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.schip:hover {
  border-color: var(--signal);
  background: var(--signal-soft);
  color: #067a6b;
}
.sidle-cats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 10px;
}
.sidle-cats a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  font-size: 13.5px;
}
.sidle-cats a:hover {
  border-color: var(--signal);
}
.sidle-cats span {
  color: var(--muted, #7b8ca0);
  font-size: 12px;
}
.sask {
  margin-top: 26px;
  font-size: 13px;
  color: #7b8ca0;
}
.sask a {
  color: #00bfa5;
}