/* 端联科技首页视觉方案
   品牌名为占位，替换 .logo-name / .logo-en 即可。

   色板
   --ink        #0B1626  深蓝，主色，Hero / 行动区 / 页脚
   --blue       #163E6B  科技蓝，按钮、图标、芯片顶边
   --cyan       #12748C  青蓝，少量信号色：焦点、针脚、图框角标
   --paper      #F4F6F8  浅灰背景
   --card       #FFFFFF
   --text       #142033
   --muted      #3E5163
   --line       #E1E6EC

   断点
   <720    单列，按钮通栏，导航收进菜单
   720–959 能力/场景两列，芯片横向滑动
   >=960   Hero 双栏
   >=1020  能力三列，芯片五列
*/

:root {
  --ink: #0b1626;
  --ink-2: #122033;
  --blue: #163e6b;
  --blue-press: #0f3056;
  --cyan: #12748c;
  --cyan-signal: #1494b8;
  --paper: #f4f6f8;
  --card: #ffffff;
  --text: #142033;
  --muted: #3e5163;
  --faint: #5c7082;
  --line: #e1e6ec;
  --line-strong: #c9d4df;
  --on-dark: #f4f7fa;
  --on-dark-dim: #c5d3e0;
  --on-dark-faint: #93a6b8;
  --danger-quiet: #8a5a52;
  --header: 67px;
  --mono: "Noto Sans Mono CJK SC", "Noto Sans Mono", ui-monospace, monospace;
  --sans: "Noto Sans CJK SC", "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--card);
  text-rendering: optimizeLegibility;
}

body.nav-lock {
  overflow: hidden;
}

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

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

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

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

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

button {
  cursor: pointer;
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 2px solid var(--cyan-signal);
  outline-offset: 2px;
}

::selection {
  background: #d5e8ef;
  color: var(--ink);
}

.skip {
  position: absolute;
  left: 16px;
  top: -40px;
  background: var(--card);
  color: var(--ink);
  padding: 8px 12px;
  z-index: 30;
}

.skip:focus {
  top: 12px;
}

.container {
  width: min(1160px, calc(100% - 32px));
  margin-inline: auto;
}

.section {
  padding: 40px 0;
  scroll-margin-top: var(--header);
}

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

.section-white {
  background: var(--card);
}

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

.kicker {
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #14556c;
}

.kicker-light {
  color: #8fd0de;
}

h1,
h2,
h3 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
}

.section-head {
  max-width: 40rem;
  margin-bottom: 20px;
}

.keep {
  white-space: nowrap;
}

.section-head h2,
.cta-copy h2 {
  font-size: clamp(26px, 3vw, 34px);
}

.lede {
  margin-top: 12px;
  color: var(--muted);
  font-size: 16px;
}

.section-ink h2 {
  color: var(--on-dark);
}

.section-ink .lede,
.lede-light {
  color: var(--on-dark-dim);
}

.note {
  margin-top: 14px;
  color: var(--faint);
  font-size: 13px;
}

/* 按钮 */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--on-dark);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
  white-space: nowrap;
}

.btn-primary {
  background: #2b6de5;
  color: #fff;
}

.btn-primary:hover {
  background: #1e56c8;
}

.btn-on-dark {
  background: #f2f5f8;
  color: var(--ink);
}

.btn-on-dark:hover {
  background: #fff;
}

.btn-ghost {
  border-color: rgba(232, 238, 244, 0.45);
  color: var(--on-dark);
}

.btn-ghost:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.04);
}

.btn-block {
  width: 100%;
}

/* 导航 */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
  color: var(--ink);
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  object-fit: cover;
  flex: none;
}

.logo-name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1;
}

.nav-links {
  display: none;
}

.nav-links a {
  font-size: 14px;
  color: var(--muted);
}

.nav-links a:hover {
  color: var(--ink);
}

.nav-links .btn:hover {
  color: #fff;
}

.header-cta {
  display: none;
}

.header-phone {
  display: inline;
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}

.nav-toggle {
  width: 44px;
  height: 44px;
  display: grid;
  place-content: center;
  gap: 5px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #fff;
}

.nav-toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--ink);
}

.menu-cta {
  margin-top: 8px;
}

/* Hero */

.hero {
  position: relative;
  background: var(--ink);
  color: var(--on-dark);
  padding: 32px 0 36px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(186, 214, 230, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(186, 214, 230, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.hero h1 {
  font-size: clamp(28px, 3.2vw, 44px);
  color: #fff;
}

.hero .lede {
  max-width: 38em;
  margin-top: 16px;
  color: var(--on-dark-dim);
}

@media (max-width: 719px) {
  .lede-line {
    display: block;
  }
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 24px;
}

.hero-facts {
  display: grid;
  gap: 16px;
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-facts span {
  display: block;
  margin-bottom: 4px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--on-dark-faint);
}

.hero-facts strong {
  font-weight: 700;
  font-size: 14px;
  color: var(--on-dark);
}

.sheet {
  position: relative;
  padding: 28px 22px 20px;
  background: var(--ink-2);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.tick {
  position: absolute;
  width: 10px;
  height: 10px;
  border: 0 solid var(--cyan-signal);
}

.tick-tl { top: 8px; left: 8px; border-top-width: 1px; border-left-width: 1px; }
.tick-tr { top: 8px; right: 8px; border-top-width: 1px; border-right-width: 1px; }
.tick-bl { bottom: 8px; left: 8px; border-bottom-width: 1px; border-left-width: 1px; }
.tick-br { bottom: 8px; right: 8px; border-bottom-width: 1px; border-right-width: 1px; }

.sheet-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #8fd0de;
}

.spec-list {
  margin: 0;
}

.spec-list > div {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 12px;
  padding: 11px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.spec-list dt {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--on-dark-faint);
}

.spec-list dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--on-dark);
}

.sheet-label {
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--on-dark-faint);
}

.sheet-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.sheet-chips li {
  padding: 3px 8px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--on-dark);
}

.sheet-foot {
  margin-top: 14px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--on-dark-faint);
}

/* 能力卡片 */

.cap-grid,
.scene-grid {
  display: grid;
  gap: 20px;
}

.card,
.scene {
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  scroll-margin-top: var(--header);
}

.card:hover,
.scene:hover {
  border-color: #b7c6d6;
}

.icon {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  background: #e7eef4;
  color: var(--blue);
}

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

.card h3,
.scene h3,
.step h3,
.benefit h3 {
  font-size: 16px;
}

.spec-line {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.45;
  color: var(--blue);
}

.card h3 {
  font-size: 15px;
  font-weight: 700;
}

.card p:last-child,
.scene p:last-child,
.step p,
.benefit p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.card p:last-child {
  margin-top: 8px;
  font-size: 13px;
}

.scene-kicker {
  margin-bottom: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

/* 芯片 */

.section-head-split {
  display: grid;
  gap: 16px;
}

.stat strong {
  display: block;
  font-family: var(--mono);
  font-size: 36px;
  line-height: 1;
  font-weight: 700;
  color: var(--blue);
}

.stat span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.scroll-hint {
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--faint);
}

.chip-grid {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 6px;
}

.chip-grid::-webkit-scrollbar {
  height: 6px;
}

.chip-grid::-webkit-scrollbar-thumb {
  background: #c5d0db;
}

.chip {
  flex: 1 0 210px;
  min-width: 210px;
  scroll-snap-align: start;
  scroll-margin-top: var(--header);
  padding: 16px 16px 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--blue);
  border-radius: 8px;
}

.chip:hover {
  border-top-color: var(--cyan-signal);
}

.chip-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.pin {
  width: 7px;
  height: 7px;
  background: var(--cyan-signal);
}

.chip-vendor,
.chip-name {
  font-family: var(--mono);
}

.chip-vendor {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--faint);
}

.chip-name {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--ink);
}

.chip-role {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
}

.chip-use {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid #e6ecf1;
  color: var(--blue);
  font-size: 13px;
}

/* 流程 */

.process-list {
  display: grid;
  gap: 18px;
}

.step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
}

.step-no {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  background: #fff;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--blue);
}

.step h3 {
  margin-bottom: 6px;
}

/* 收益 */

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

.benefit {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.benefit-no {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--cyan);
}

/* 行动区 */

.cta-grid {
  display: grid;
  gap: 28px;
}

.cta-points {
  margin-top: 22px;
}

.cta-points li {
  position: relative;
  margin-top: 10px;
  padding-left: 16px;
  color: var(--on-dark-dim);
  font-size: 15px;
}

.cta-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--cyan-signal);
}

.contact-line {
  margin-top: 22px;
  color: var(--on-dark-dim);
  font-size: 14px;
}

.contact-line a {
  display: inline-block;
  margin-left: 8px;
  color: #fff;
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.form-card {
  padding: 22px 18px;
  background: var(--paper);
  color: var(--text);
  border-radius: 8px;
}

.form-card h3 {
  font-size: 18px;
}

.form-card .lede {
  margin: 8px 0 18px;
  font-size: 14px;
}

.form-grid {
  display: grid;
  gap: 14px;
}

.form-row {
  display: grid;
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field > span {
  font-size: 13px;
  font-weight: 700;
  color: #243446;
}

.req {
  margin-left: 6px;
  font-size: 12px;
  font-weight: 400;
  color: var(--danger-quiet);
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
}

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

input:focus,
select:focus,
textarea:focus {
  border-color: var(--cyan-signal);
  outline: 2px solid var(--cyan-signal);
  outline-offset: 0;
}

::placeholder {
  color: #8a9aab;
}

.form-note {
  margin-top: 10px;
  color: var(--faint);
  font-size: 12px;
  line-height: 1.6;
}

.form-done {
  padding: 12px 0 8px;
}

.form-done h3 {
  margin-bottom: 8px;
}

/* 页脚 */

.footer {
  background: #08111d;
  color: #d5e0ea;
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  gap: 28px;
}

.footer h2 {
  margin-bottom: 10px;
  color: #fff;
  font-size: 16px;
}

.footer-about {
  max-width: 28em;
  color: #b7c6d4;
  font-size: 14px;
}

.footer h3 {
  margin-bottom: 10px;
  color: var(--on-dark-faint);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.08em;
}

.footer a,
.footer li {
  display: block;
  padding: 3px 0;
  color: #d5e0ea;
  font-size: 14px;
}

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

.legal {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: #8aa0b3;
  font-size: 12px;
}

@media (min-width: 720px) {
  .container {
    width: min(1160px, calc(100% - 48px));
  }

  .section {
    padding: 72px 0;
  }

  .section-head {
    margin-bottom: 28px;
  }

  .hero-actions {
    flex-direction: row;
    align-items: center;
  }

  .hero-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .cap-grid,
  .scene-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .benefit {
    grid-template-columns: 52px 220px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }

  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }

  .legal {
    flex-direction: row;
    justify-content: space-between;
  }
}

@media (min-width: 900px) {
  .nav-toggle,
  .menu-cta {
    display: none;
  }

  .header-cta {
    display: inline-flex;
  }

  .menu-phone {
    display: none;
  }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 22px;
  }

  .section {
    padding: 96px 0;
  }

  .section-head {
    margin-bottom: 36px;
  }

  .hero {
    padding: 72px 0 84px;
  }

  .hero::before {
    -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 36%, #000 100%);
    mask-image: linear-gradient(90deg, transparent 0%, #000 36%, #000 100%);
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(300px, 0.88fr);
    gap: 56px;
    align-items: center;
  }

  .section-head-split {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    max-width: none;
  }

  .process-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 28px;
  }

  .step {
    position: relative;
    display: block;
  }

  .step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 18px;
    left: 36px;
    width: calc(100% + 28px - 36px);
    height: 1px;
    background: var(--line-strong);
  }

  .step-no {
    position: relative;
    z-index: 1;
    margin-bottom: 16px;
    background: var(--card);
  }

  .cta-grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    gap: 56px;
    align-items: start;
  }

  .form-card {
    padding: 28px;
  }

  .scroll-hint {
    display: none;
  }
}

@media (min-width: 1020px) {
  .cap-grid,
  .scene-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .chip-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    overflow: visible;
  }

  .chip {
    min-width: 0;
  }
}

@media (max-width: 899px) {
  .site-header.is-open .nav-links {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    padding: 4px 20px 16px;
    background: #fff;
    border-bottom: 1px solid var(--line);
  }

  .site-header.is-open .nav-links a {
    padding: 12px 0;
    border-top: 1px solid #eef2f5;
  }
}

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

  .btn,
  .card,
  .chip,
  .scene {
    transition: none;
  }
}

/* 产品链路与场景实机图 */

.stage {
  position: relative;
  padding: 64px 0;
  background: var(--ink);
  color: var(--on-dark);
  overflow: hidden;
}

.stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(186, 214, 230, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(186, 214, 230, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.stage-layout {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.stage-index {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: #8fd0de;
}

.stage h2 {
  color: #fff;
  font-size: clamp(26px, 3vw, 36px);
}

.stage-meta {
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: #8fd0de;
}

.stage-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
}

.stage-arrow,
.stage-pause {
  height: 44px;
  border: 1px solid rgba(232, 238, 244, 0.35);
  border-radius: 8px;
  background: transparent;
  color: var(--on-dark);
}

.stage-arrow {
  width: 44px;
  display: grid;
  place-items: center;
  padding: 0;
}

.stage-arrow svg {
  width: 18px;
  height: 18px;
}

.stage-arrow:hover,
.stage-pause:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.stage-pause {
  padding: 0 14px;
  font-size: 13px;
  font-weight: 700;
}

.stage-dots {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
}

.stage-dot {
  width: 42px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  display: grid;
  align-items: center;
}

.stage-dot span {
  display: block;
  height: 2px;
  width: 0;
  background: #8fd0de;
}

.stage-dot[aria-selected="true"] span {
  width: 100%;
  animation: stage-load 5.8s linear;
}

.stage-dot[aria-selected="false"] {
  background: linear-gradient(var(--on-dark-faint), var(--on-dark-faint)) center / 100% 2px no-repeat;
}

@keyframes stage-load {
  from { width: 0; }
  to { width: 100%; }
}

.stage-viewport {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: #121c2c;
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.stage-frame {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: 16px 16px 14px;
  background: #121c2c;
  opacity: 0;
  transition: opacity 0.7s ease;
}

.stage-frame.is-on {
  opacity: 1;
  z-index: 1;
}

.frame-bar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #8fd0de;
}

.topo-svg {
  flex: 1;
  width: 100%;
  min-height: 0;
}

.topo-svg rect {
  fill: rgba(255, 255, 255, 0.03);
  stroke: rgba(255, 255, 255, 0.18);
}

.topo-svg .core rect {
  stroke: #1494b8;
}

.topo-svg text {
  fill: #f4f7fa;
  font-family: var(--sans);
  font-size: 16px;
}

.topo-svg .sub {
  fill: #93a6b8;
  font-family: var(--mono);
  font-size: 12px;
}

.topo-packet {
  fill: #d7f3f8;
}

.telem,
.proc {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.telem li,
.proc li {
  display: grid;
  align-items: baseline;
  padding: 11px 2px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.telem li {
  grid-template-columns: 64px minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 12px;
  font-size: 15px;
}

.telem span,
.proc em,
.meters b {
  font-family: var(--mono);
  font-size: 12px;
  font-style: normal;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: #8fd0de;
}

.telem em {
  font-style: normal;
  color: var(--on-dark-faint);
  font-size: 13px;
}

.proc li {
  grid-template-columns: 12px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 7px 2px;
  font-family: var(--mono);
  font-size: 14px;
  color: #fff;
}

.proc i {
  width: 7px;
  height: 7px;
  background: #1494b8;
}

.meters {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  min-height: 0;
}

.meters div {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 6px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.meters span {
  font-size: 13px;
  color: var(--on-dark-faint);
}

.meters strong {
  font-family: var(--mono);
  font-size: 22px;
  line-height: 1.1;
  color: #fff;
}

.stage.is-paused .stage-dot span,
.stage:hover .stage-dot span {
  animation-play-state: paused;
}

.stage.is-paused .topo-packet,
.stage:hover .topo-packet {
  animation-play-state: paused;
}

.scene {
  padding: 0;
  overflow: hidden;
}

.scene-photo {
  position: relative;
  aspect-ratio: 4 / 3;
  background:
    radial-gradient(circle at 50% 42%, #ffffff 0%, #e7eef3 72%);
  border-bottom: 1px solid var(--line);
}

.scene-photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: contain;
  transition: transform 0.6s ease;
}

.scene:hover .scene-photo img {
  transform: scale(1.045);
}

.scene-body {
  padding: 16px 18px 18px;
}

.scene p.scene-product {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid #e6ecf1;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--blue);
}

@media (min-width: 960px) {
  .stage {
    padding: 88px 0;
  }

  .stage-layout {
    grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
    gap: 48px;
    align-items: center;
  }

  .stage-viewport {
    aspect-ratio: 16 / 9;
  }
}

.link-path {
  position: relative;
  margin: 14px 0 6px;
}

.link-signal {
  position: absolute;
  left: 8px;
  top: 8px;
  width: 1px;
  height: 32px;
  background: #8fd0de;
  animation: link-run 3.8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes link-run {
  from { top: 8px; }
  to { top: calc(100% - 36px); }
}

.link-path li {
  position: relative;
  display: grid;
  grid-template-columns: 18px 28px 52px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  padding: 9px 0;
}

.link-mark {
  width: 9px;
  height: 9px;
  justify-self: center;
  border: 1px solid #8fd0de;
  border-radius: 50%;
  background: var(--ink-2);
  position: relative;
  z-index: 1;
}

.link-path::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 14px;
  bottom: 14px;
  width: 1px;
  background: rgba(143, 208, 222, 0.28);
}

.link-no {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: #8fd0de;
}

.link-name {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}

.link-val {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--on-dark-dim);
}

@media (prefers-reduced-motion: reduce) {
  .stage-frame,
  .stage-dot span,
  .scene-photo img,
  .link-signal,
  .topo-packet {
    animation: none !important;
    transition: none !important;
  }
}

.board-grid {
  display: grid;
  gap: 16px;
}

.board {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #e6edf5;
  border-radius: 12px;
  overflow: hidden;
}

.board-photo {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 220px;
  padding: 28px 18px 8px;
  background: #fff;
}

.board-photo img {
  width: auto;
  max-width: 78%;
  max-height: 180px;
  margin: 0 auto;
  object-fit: contain;
}

.board-photo .pill {
  position: absolute;
  top: 14px;
  left: 14px;
  margin: 0;
}

.pill {
  display: inline-flex;
  width: fit-content;
  margin: 0 0 12px;
  padding: 4px 12px;
  border-radius: 999px;
  background: #2b6de5;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
}

.board-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 8px 18px 18px;
}

.board-model {
  color: #8a94a6;
  font-size: 13px;
}

.board h3 {
  margin: 4px 0 12px;
  font-size: 18px;
}

.board-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.board-tags li {
  padding: 4px 10px;
  border-radius: 999px;
  background: #eef4ff;
  color: #2b6de5;
  font-size: 12px;
  line-height: 1.4;
}

.board-more {
  display: inline-block;
  margin-top: auto;
  padding-top: 16px;
  color: #2b6de5;
  font-size: 14px;
  font-weight: 700;
}

.board-more:hover {
  color: #1e56c8;
}

.bully-band {
  background: #163e6b;
  color: #fff;
  padding: 48px 0;
}

.bully-inner {
  display: grid;
  gap: 18px;
  align-items: center;
}

.bully-band h2 {
  margin: 0 0 10px;
  color: #fff;
  font-size: clamp(26px, 3vw, 34px);
}

.bully-band p:not(.pill) {
  max-width: 40rem;
  color: #d5e4f2;
  font-size: 15px;
  line-height: 1.7;
}

@media (min-width: 720px) {
  .board-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .bully-inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .bully-band {
    padding: 56px 0;
  }
}

@media (min-width: 1020px) {
  .board-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.console-layout {
  display: grid;
  gap: 28px;
  align-items: center;
}

.console-shot {
  margin: 0;
  overflow: hidden;
  border: 1px solid #e1e6ec;
  border-radius: 12px;
  background: #12161c;
}

.console-shot img {
  width: 100%;
  height: auto;
}

.console-modes li {
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.console-modes li:last-child {
  border-bottom: 1px solid var(--line);
}

.console-modes span {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: #2b6de5;
}

.console-modes strong {
  display: block;
  margin: 4px 0;
  font-size: 16px;
  color: var(--ink);
}

.console-modes p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.console-run {
  margin: 18px 0 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--faint);
}

.console-platforms {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
}

.console-platforms li {
  padding: 6px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}

@media (min-width: 960px) {
  .console-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
    gap: 40px;
    align-items: start;
  }
}

.desk {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  background: #12181f;
  color: #e8eef4;
}

.desk-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: #9eb0c2;
}

.desk-tabs {
  display: flex;
  gap: 6px;
  padding: 10px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.desk-tabs span,
.desk-foot span {
  padding: 5px 12px;
  border-radius: 8px;
  background: #1c2530;
  font-size: 13px;
  font-weight: 700;
}

.desk-tabs .is-on,
.desk-foot .is-on {
  background: #2b6de5;
  color: #fff;
}

.desk-list {
  padding: 4px 8px 8px;
}

.desk-head,
.desk-row {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 56px;
  align-items: center;
  gap: 8px;
  padding: 0 10px;
}

.desk-head {
  padding-top: 8px;
  padding-bottom: 6px;
  border-left: 2px solid transparent;
  color: #7f93a6;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}

.desk-row {
  min-height: 40px;
  border-radius: 8px;
  border-left: 2px solid transparent;
  font-size: 14px;
}

.desk-row span:first-child {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: #c5d3e0;
}

.desk-row em {
  justify-self: end;
  font-style: normal;
  font-size: 12px;
  color: #9eb0c2;
}

.desk-row em.is-live {
  color: #8fd0de;
}

.desk-row.is-on {
  background: rgba(43, 109, 229, 0.16);
  border-left-color: #2b6de5;
}

.desk-row.is-on span:first-child,
.desk-row.is-on span:nth-child(2) {
  color: #fff;
}

.desk-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.desk-foot p {
  margin: 0;
  color: #9eb0c2;
  font-size: 12px;
  line-height: 1.4;
}

.desk-foot div {
  display: flex;
  gap: 8px;
  flex: none;
}

.mode-grid {
  display: grid;
  gap: 16px;
}

.mode {
  padding: 20px 18px 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.mode > p:first-child {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--blue);
}

.mode h3 {
  margin: 6px 0 8px;
  font-size: 18px;
}

.mode p:last-child {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.adapt-grid {
  display: grid;
  gap: 28px;
  margin-bottom: 36px;
}

.adapt-grid .sheet {
  border-radius: 12px;
}

.adapt-points li {
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.adapt-points li:last-child {
  border-bottom: 1px solid var(--line);
}

.adapt-points li > p:first-child {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--faint);
}

.adapt-points h3 {
  margin: 4px 0;
  font-size: 18px;
}

.adapt-points li p:last-child {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.scene-flag {
  position: absolute;
  z-index: 1;
  top: 12px;
  left: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(11, 22, 38, 0.72);
  color: #fff;
  font-size: 12px;
  line-height: 1.5;
}

.board-tags li {
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--text);
}

.board-more,
.board-more:hover {
  color: var(--blue);
}

@media (max-width: 520px) {
  .desk-foot {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (min-width: 720px) {
  .mode-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .adapt-grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(280px, 1.08fr);
    align-items: stretch;
  }
}

@media (min-width: 1020px) {
  .scene-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* —— 内页：关于 / 产品 / 方案 / 支持 / 联系 —— */
.page-hero {
  background: linear-gradient(165deg, var(--ink) 0%, var(--ink-2) 55%, #1a3348 100%);
  color: var(--on-dark);
  padding: calc(var(--header) + 2.5rem) 0 2.75rem;
}

.page-hero .lede {
  color: var(--on-dark-dim);
  max-width: 42rem;
  margin-top: 1rem;
}

.page-content {
  max-width: 52rem;
}

.page-content h2 {
  font-size: 1.35rem;
  margin: 2rem 0 0.75rem;
  color: var(--text);
}

.page-content h3 {
  font-size: 1.1rem;
  margin: 1.25rem 0 0.5rem;
}

.page-content p,
.page-content li {
  color: var(--muted);
}

.page-content ul:not(.plain) {
  list-style: disc;
  padding-left: 1.25rem;
  margin: 0.75rem 0 1rem;
}

.prose-grid {
  display: grid;
  gap: 1.25rem;
}

.adv-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.adv-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.25rem 1.35rem;
  border-top: 3px solid var(--cyan);
}

.adv-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.adv-card p {
  color: var(--muted);
  font-size: 0.95rem;
}

.section-actions {
  margin-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.product-block {
  margin-top: 2.5rem;
}

.product-block:first-child {
  margin-top: 0;
}

.product-block > h2 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
}

.product-cards {
  display: grid;
  gap: 1rem;
}

.product-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  display: grid;
  gap: 0;
}

.product-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: var(--paper);
}

.product-card-body {
  padding: 1.15rem 1.25rem 1.25rem;
}

.product-card-body h3 {
  font-size: 1.08rem;
  margin-bottom: 0.35rem;
}

.product-card-body .tag {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--cyan);
  margin-bottom: 0.5rem;
}

.product-card-body p {
  font-size: 0.92rem;
  color: var(--muted);
}

.product-card-body ul {
  margin-top: 0.65rem;
  font-size: 0.88rem;
  color: var(--faint);
  list-style: none;
  padding: 0;
}

.product-card-body li + li {
  margin-top: 0.25rem;
}

.product-card-body li::before {
  content: "· ";
  color: var(--cyan);
}

.solution-cards {
  display: grid;
  gap: 1rem;
}

.solution-card {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.25rem 1.35rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.solution-card:hover {
  border-color: var(--line-strong);
  box-shadow: 0 8px 24px rgba(11, 22, 38, 0.06);
}

.solution-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.solution-card p {
  font-size: 0.92rem;
  color: var(--muted);
}

.solution-detail {
  scroll-margin-top: calc(var(--header) + 1rem);
  padding: 2rem 0;
  border-top: 1px solid var(--line);
}

.solution-detail:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 1rem 0;
}

.spec-table th,
.spec-table td {
  border: 1px solid var(--line);
  padding: 0.65rem 0.75rem;
  text-align: left;
  vertical-align: top;
}

.spec-table th {
  background: var(--paper);
  color: var(--text);
  font-weight: 600;
}

.spec-table td {
  color: var(--muted);
}

.process-steps {
  display: grid;
  gap: 0.75rem;
  counter-reset: step;
}

.process-step {
  counter-increment: step;
  padding: 1rem 1.1rem 1rem 3rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  position: relative;
}

.process-step::before {
  content: counter(step);
  position: absolute;
  left: 1rem;
  top: 1rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--cyan);
  font-weight: 700;
}

.contact-grid-page {
  display: grid;
  gap: 2rem;
}

.nav-links a.is-active {
  color: var(--cyan);
  font-weight: 600;
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--on-dark-faint);
  margin-bottom: 0.75rem;
}

.breadcrumb a {
  color: var(--on-dark-dim);
}

.breadcrumb a:hover {
  color: var(--on-dark);
}

@media (min-width: 720px) {
  .adv-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

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

  .contact-grid-page {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: start;
  }
}

@media (min-width: 1020px) {
  .product-cards.cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.blog-list {
  display: grid;
  gap: 1rem;
}

.blog-list-item {
  display: block;
  padding: 1.25rem 1.35rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.blog-list-item h2 {
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
}

.blog-list-item p {
  color: var(--muted);
  font-size: 0.92rem;
}

.blog-list-item time {
  display: block;
  font-size: 0.8rem;
  color: var(--faint);
  margin-top: 0.5rem;
}

.blog-post .page-content h2 {
  margin-top: 2rem;
}

.blog-post .page-content h2:first-of-type {
  margin-top: 0;
}

.blog-post .page-content p {
  margin-bottom: 0.85rem;
}

.blog-post .page-content ul {
  margin: 0.75rem 0 1rem;
}

.faq-list {
  display: grid;
  gap: 1rem;
  margin-top: 1.25rem;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.15rem 1.25rem;
}

.faq-item h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.faq-item p {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0;
}