/* =========================================================
   钰鸣跨境 ERP · 企业官网
   设计语言：跨境物流控制台 / 深墨绿 + 信号橙 / 细线矩阵
   ========================================================= */

:root {
  --ink: #07141a;
  --ink-2: #0a1b24;
  --ink-3: #0f2a33;
  --paper: #f3f4f0;
  --paper-2: #e9ece6;
  --white: #ffffff;
  --orange: #ff5b33;
  --orange-2: #ff7455;
  --orange-ink: #1c0b05;
  --mint: #8fe3c8;
  --mint-deep: #2fa987;
  --text: #0b1c22;
  --muted: #5b6b6e;
  --line: rgba(11, 28, 34, 0.13);
  --line-soft: rgba(11, 28, 34, 0.07);
  --line-dark: rgba(255, 255, 255, 0.13);
  --font-sans: "HarmonyOS Sans SC", "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  --font-tech: "Bahnschrift", "DIN Alternate", "Arial Narrow", "Helvetica Neue", sans-serif;
  --header-h: 78px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

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

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

svg {
  display: block;
}

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

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

[hidden] {
  display: none !important;
}

.wrap {
  width: min(1200px, calc(100% - 48px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 20px;
  z-index: 300;
  padding: 10px 18px;
  background: var(--orange);
  color: var(--orange-ink);
  font-size: 13px;
  font-weight: 700;
  transition: top 0.25s var(--ease);
}

.skip-link:focus {
  top: 16px;
}

section[id],
.section,
.solutions,
.why,
.contact {
  scroll-margin-top: 92px;
}

/* ============================== 按钮 ============================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 50px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 3px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease),
    border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

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

.btn-primary {
  background: var(--orange);
  color: var(--orange-ink);
}

.btn-primary:hover {
  background: var(--orange-2);
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.26);
  color: var(--white);
  background: transparent;
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.05);
}

.btn-sm {
  height: 40px;
  padding: 0 20px;
  font-size: 13px;
}

.btn-block {
  width: 100%;
}

/* ============================== 顶部导航 ============================== */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 120;
  height: var(--header-h);
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(7, 20, 26, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: rgba(255, 255, 255, 0.09);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.04);
  color: var(--orange);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.brand:hover .brand-mark {
  border-color: var(--orange);
  background: rgba(255, 91, 51, 0.1);
}

.brand-mark svg {
  width: 26px;
  height: 26px;
}

.brand-mark .brand-node {
  fill: var(--mint);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.1;
}

.brand-text strong {
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--white);
}

.brand-text small {
  font-family: var(--font-tech);
  font-size: 8.5px;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.42);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-left: auto;
}

.main-nav a {
  position: relative;
  padding: 6px 0;
  font-size: 13.5px;
  color: rgba(255, 255, 255, 0.68);
  transition: color 0.2s var(--ease);
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 1px;
  background: var(--orange);
  transition: right 0.3s var(--ease);
}

.main-nav a:hover,
.main-nav a.is-active {
  color: var(--white);
}

.main-nav a.is-active::after {
  right: 0;
}

.nav-mobile-cta {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-cta {
  flex-shrink: 0;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 40px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 3px;
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--white);
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ============================== Hero ============================== */

.hero {
  position: relative;
  padding: calc(var(--header-h) + 76px) 0 0;
  background: var(--ink);
  color: var(--white);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 82px 82px;
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 68% 38%, #000 20%, transparent 78%);
  mask-image: radial-gradient(ellipse 70% 70% at 68% 38%, #000 20%, transparent 78%);
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
}

.hero-glow-a {
  width: 620px;
  height: 620px;
  top: -160px;
  right: -120px;
  background: rgba(255, 91, 51, 0.2);
}

.hero-glow-b {
  width: 520px;
  height: 520px;
  bottom: -240px;
  left: -160px;
  background: rgba(47, 169, 135, 0.18);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: 58px;
  align-items: center;
}

.hero-copy > * {
  animation: heroRise 0.85s var(--ease) both;
}

.hero-copy > .hero-kicker { animation-delay: 0.02s; }
.hero-copy > h1 { animation-delay: 0.1s; }
.hero-copy > .hero-lede { animation-delay: 0.2s; }
.hero-copy > .hero-actions { animation-delay: 0.3s; }
.hero-copy > .hero-metrics { animation-delay: 0.4s; }

@keyframes heroRise {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 26px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--mint);
}

.pulse {
  position: relative;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mint);
}

.pulse::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--mint);
  animation: pulseRing 2.4s var(--ease) infinite;
}

@keyframes pulseRing {
  0% { transform: scale(0.5); opacity: 0.9; }
  70%, 100% { transform: scale(1.6); opacity: 0; }
}

.hero h1 {
  font-size: clamp(40px, 4.7vw, 66px);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -0.04em;
  max-width: 15em;
}

.hero-lede {
  max-width: 560px;
  margin-top: 26px;
  font-size: 15.5px;
  line-height: 1.95;
  color: rgba(255, 255, 255, 0.63);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 48px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-metrics dt {
  font-family: var(--font-tech);
  font-size: 25px;
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: 0.01em;
  color: var(--white);
}

.hero-metrics dd {
  margin-top: 7px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.42);
  letter-spacing: 0.02em;
}

/* ---------- 运营看板 ---------- */

.hero-visual {
  position: relative;
  padding: 30px 0 24px;
  animation: boardIn 1s var(--ease) 0.25s both;
}

@keyframes boardIn {
  from {
    opacity: 0;
    transform: translateY(28px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(143, 227, 200, 0.22) 1px, transparent 1px);
  background-size: 20px 20px;
  -webkit-mask-image: radial-gradient(ellipse at center, #000 20%, transparent 72%);
  mask-image: radial-gradient(ellipse at center, #000 20%, transparent 72%);
  opacity: 0.5;
  pointer-events: none;
}

.ops-board {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 5px;
  background:
    linear-gradient(158deg, rgba(255, 255, 255, 0.045), transparent 42%),
    linear-gradient(160deg, #0f2a33, #081820 72%);
  box-shadow:
    0 50px 100px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.07);
  transform: rotate(-1.2deg);
  transition: transform 0.6s var(--ease), box-shadow 0.6s var(--ease);
}

.hero-visual:hover .ops-board {
  transform: rotate(0deg) translateY(-4px);
  box-shadow:
    0 60px 120px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.09);
}

.board-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.11);
}

.board-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.board-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  font-size: 10px;
  color: var(--mint);
}

.board-live i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 0 rgba(143, 227, 200, 0.5);
  animation: livePulse 2s infinite;
}

@keyframes livePulse {
  0% { box-shadow: 0 0 0 0 rgba(143, 227, 200, 0.45); }
  70%, 100% { box-shadow: 0 0 0 7px rgba(143, 227, 200, 0); }
}

.board-date {
  font-family: var(--font-tech);
  font-size: 10px;
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.05em;
}

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

.board-kpis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.board-kpi {
  padding: 2px 14px;
  border-left: 1px solid rgba(255, 255, 255, 0.09);
}

.board-kpi:first-child {
  padding-left: 0;
  border-left: 0;
}

.board-kpi > span {
  display: block;
  font-size: 10px;
  color: rgba(255, 255, 255, 0.42);
}

.board-kpi strong {
  display: block;
  margin-top: 3px;
  font-family: var(--font-tech);
  font-size: 25px;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: 0.01em;
}

.board-kpi strong small {
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.4);
  margin-left: 3px;
}

.board-kpi em {
  display: block;
  margin-top: 2px;
  font-style: normal;
  font-size: 9px;
  color: rgba(255, 255, 255, 0.35);
}

.board-kpi em.up {
  color: var(--mint);
}

.board-chart {
  margin-top: 16px;
  padding: 12px 14px 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.025);
  border-radius: 3px;
}

.chart-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 10px;
  color: rgba(255, 255, 255, 0.42);
}

.chart-sum {
  font-family: var(--font-tech);
  font-size: 10.5px;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.03em;
}

.bars {
  display: flex;
  align-items: flex-end;
  gap: 7px;
  height: 76px;
  margin-top: 10px;
}

.bars span {
  flex: 1;
  height: var(--h);
  background: rgba(143, 227, 200, 0.22);
  border-top: 1px solid rgba(143, 227, 200, 0.5);
  transform-origin: bottom;
  animation: barGrow 0.9s var(--ease) 0.55s both;
}

.bars span:nth-child(2) { animation-delay: 0.62s; }
.bars span:nth-child(3) { animation-delay: 0.69s; }
.bars span:nth-child(4) { animation-delay: 0.76s; }
.bars span:nth-child(5) { animation-delay: 0.83s; }
.bars span:nth-child(6) { animation-delay: 0.9s; }
.bars span:nth-child(7) { animation-delay: 0.97s; }

.bars .is-current {
  background: var(--orange);
  border-top-color: var(--orange-2);
}

@keyframes barGrow {
  from { transform: scaleY(0); opacity: 0.2; }
  to { transform: scaleY(1); opacity: 1; }
}

.bar-axis {
  display: flex;
  justify-content: space-between;
  margin-top: 7px;
  font-family: var(--font-tech);
  font-size: 8.5px;
  color: rgba(255, 255, 255, 0.28);
  letter-spacing: 0.04em;
}

.board-orders {
  margin-top: 15px;
}

.orders-head {
  display: flex;
  justify-content: space-between;
  padding-bottom: 7px;
  font-size: 9.5px;
  color: rgba(255, 255, 255, 0.34);
}

.order-row {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.72fr) minmax(0, 0.62fr) auto;
  align-items: center;
  gap: 8px;
  padding: 8px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  font-size: 10px;
  color: rgba(255, 255, 255, 0.72);
}

.order-pf {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.order-pf i {
  width: 5px;
  height: 5px;
  border-radius: 1px;
}

.pf-a { background: var(--orange); }
.pf-b { background: var(--mint); }
.pf-c { background: #7ca7ff; }

.order-id {
  font-family: var(--font-tech);
  font-size: 9.5px;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.03em;
}

.order-amt {
  font-family: var(--font-tech);
  font-size: 10.5px;
  color: rgba(255, 255, 255, 0.82);
  letter-spacing: 0.02em;
  text-align: right;
}

.order-status {
  justify-self: end;
  padding: 2px 6px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 8.5px;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.55);
  white-space: nowrap;
}

.order-status.is-ok {
  color: var(--mint);
  border-color: rgba(143, 227, 200, 0.3);
}

.order-status.is-wait {
  color: #ffb69f;
  border-color: rgba(255, 91, 51, 0.35);
}

.order-status.is-sent {
  color: #9fc0ff;
  border-color: rgba(124, 167, 255, 0.3);
}

.board-tag {
  position: absolute;
  top: 0;
  right: -8px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 13px;
  background: var(--orange);
  color: var(--orange-ink);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
  border-radius: 2px;
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.35);
  transform: rotate(2deg);
}

.tag-dot {
  width: 5px;
  height: 5px;
  background: var(--orange-ink);
  border-radius: 50%;
}

.board-chip {
  position: absolute;
  left: -18px;
  bottom: 0;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: #0c2229;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 3px;
  font-size: 10px;
  color: rgba(255, 255, 255, 0.6);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.4);
}

.chip-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 10px rgba(143, 227, 200, 0.7);
}

/* ---------- 平台横条 ---------- */

.platform-rail {
  position: relative;
  display: flex;
  align-items: center;
  gap: 34px;
  margin-top: 64px;
  padding: 24px 0 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
}

.rail-label {
  flex-shrink: 0;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.32);
  letter-spacing: 0.06em;
}

.rail-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  font-family: var(--font-tech);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.5);
}

.rail-list span {
  position: relative;
  transition: color 0.25s var(--ease);
}

.rail-list span:hover {
  color: var(--white);
}

.rail-list span + span::before {
  content: "";
  position: absolute;
  left: -13px;
  top: 50%;
  width: 2px;
  height: 2px;
  background: rgba(255, 255, 255, 0.22);
}

/* ============================== 通用 section ============================== */

.section {
  padding: 108px 0;
  background: var(--paper);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 440px);
  gap: 56px;
  align-items: end;
  margin-bottom: 54px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.section-tag span {
  width: 16px;
  height: 1px;
  background: var(--orange);
}

.section-tag.is-light {
  color: var(--orange-2);
}

.section-tag.is-light span {
  background: var(--orange-2);
}

.section-head h2 {
  font-size: clamp(30px, 3.2vw, 43px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.03em;
  max-width: 17em;
  text-wrap: balance;
}

.section-desc {
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--muted);
  padding-bottom: 3px;
}

.section-head.is-dark h2 {
  color: var(--white);
}

.section-head.is-dark .section-desc {
  color: rgba(255, 255, 255, 0.56);
}

/* ============================== 核心能力矩阵 ============================== */

.capability-section {
  padding-bottom: 108px;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.module {
  position: relative;
  padding: 30px 24px 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: transparent;
  transition: background 0.3s var(--ease);
}

.module::after {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

.module:hover {
  background: var(--white);
}

.module:hover::after {
  transform: scaleX(1);
}

.module-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.module-code {
  font-family: var(--font-tech);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: rgba(11, 28, 34, 0.38);
  padding-top: 3px;
  transition: color 0.25s var(--ease);
}

.module-icon {
  width: 26px;
  height: 26px;
  color: rgba(11, 28, 34, 0.55);
  transition: color 0.25s var(--ease), transform 0.35s var(--ease);
}

.module:hover .module-code {
  color: var(--orange);
}

.module:hover .module-icon {
  color: var(--orange);
  transform: translateY(-2px);
}

.module h3 {
  margin-top: 26px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.module p {
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
  min-height: 45px;
}

.module ul {
  margin-top: 16px;
}

.module li {
  position: relative;
  padding: 4px 0 4px 13px;
  font-size: 11.5px;
  line-height: 1.7;
  color: rgba(11, 28, 34, 0.62);
}

.module li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 4px;
  height: 4px;
  border: 1px solid rgba(255, 91, 51, 0.65);
}

/* ============================== 解决方案 ============================== */

.solutions {
  background: var(--paper);
  padding: 108px 0 0;
}

.solutions > .wrap > .section-head {
  margin-bottom: 18px;
}

.solutions > .solution:first-of-type {
  border-top: 0;
  padding-top: 34px;
}

.solution {
  padding: 84px 0;
  border-top: 1px solid var(--line);
}

.solution-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 72px;
  align-items: center;
}

.solution.is-reverse .solution-copy {
  order: 2;
}

.solution-kicker {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.solution h3 {
  margin-top: 12px;
  font-size: clamp(26px, 2.6vw, 35px);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.025em;
  max-width: 16em;
  text-wrap: balance;
}

.solution-lede {
  max-width: 520px;
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.95;
  color: var(--muted);
}

.solution-list {
  margin-top: 26px;
  max-width: 540px;
}

.solution-list li {
  position: relative;
  padding: 12px 0 12px 16px;
  border-top: 1px solid var(--line);
  font-size: 13.5px;
  color: rgba(11, 28, 34, 0.78);
}

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

.solution-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 4px;
  height: 4px;
  background: var(--orange);
}

/* ---------- 产品面板通用 ---------- */

.panel {
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--white);
  box-shadow: 0 26px 70px rgba(11, 28, 34, 0.09);
  overflow: hidden;
}

.panel-bar {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-soft);
  background: #fafbf8;
}

.panel-dots {
  display: inline-flex;
  gap: 5px;
}

.panel-dots i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(11, 28, 34, 0.16);
}

.panel-title {
  font-size: 11.5px;
  font-weight: 600;
  color: rgba(11, 28, 34, 0.72);
}

.panel-meta {
  margin-left: auto;
  font-family: var(--font-tech);
  font-size: 9.5px;
  letter-spacing: 0.06em;
  color: rgba(11, 28, 34, 0.4);
}

.panel-content {
  padding: 22px 20px;
}

/* ---------- 订单流转面板 ---------- */

.flow-row {
  display: grid;
  grid-template-columns: 126px minmax(0, 1fr) 46px;
  align-items: center;
  gap: 14px;
  padding: 10px 0;
}

.flow-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.flow-label span {
  font-size: 10.5px;
  color: var(--muted);
}

.flow-label strong {
  font-family: var(--font-tech);
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
}

.flow-track {
  height: 6px;
  background: rgba(11, 28, 34, 0.07);
  overflow: hidden;
}

.flow-track span {
  display: block;
  height: 100%;
  background: var(--ink);
  transform-origin: left;
}

.flow-track.is-mint span {
  background: var(--mint-deep);
}

.flow-row em {
  font-style: normal;
  font-family: var(--font-tech);
  font-size: 10px;
  color: rgba(11, 28, 34, 0.4);
  text-align: right;
  letter-spacing: 0.03em;
}

.flow-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding: 10px 12px;
  background: rgba(255, 91, 51, 0.06);
  border-left: 2px solid var(--orange);
  font-size: 10.5px;
  color: rgba(11, 28, 34, 0.65);
}

.note-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--orange);
  flex-shrink: 0;
}

/* ---------- 财务面板 ---------- */

.ledger {
  border-top: 1px solid var(--line-soft);
}

.ledger-row {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) 0.6fr minmax(0, 1.05fr) 0.62fr;
  gap: 8px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 11px;
  color: rgba(11, 28, 34, 0.72);
}

.ledger-head {
  font-size: 9.5px;
  color: rgba(11, 28, 34, 0.4);
  padding: 8px 0;
}

.ledger-row span:nth-child(3) {
  font-family: var(--font-tech);
  font-size: 11.5px;
  letter-spacing: 0.02em;
  text-align: right;
}

.ledger-row span:last-child {
  text-align: right;
  font-size: 9.5px;
}

.st-ok {
  color: var(--mint-deep);
}

.st-wait {
  color: var(--orange);
}

.finance-foot {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 20px;
}

.donut {
  --p: 98.6;
  position: relative;
  flex-shrink: 0;
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: conic-gradient(var(--mint-deep) calc(var(--p) * 1%), rgba(11, 28, 34, 0.08) 0);
  display: grid;
  place-items: center;
}

.donut::before {
  content: "";
  position: absolute;
  inset: 5px;
  background: var(--white);
  border-radius: 50%;
}

.donut span {
  position: relative;
  font-family: var(--font-tech);
  font-size: 17px;
  color: var(--text);
}

.donut span small {
  font-size: 8px;
}

.finance-total span {
  display: block;
  font-size: 10px;
  color: var(--muted);
}

.finance-total strong {
  display: block;
  margin-top: 1px;
  font-family: var(--font-tech);
  font-size: 23px;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.finance-total em {
  font-style: normal;
  font-size: 9.5px;
  color: var(--mint-deep);
}

/* ---------- 供应链地图面板 ---------- */

.map-panel {
  background: var(--ink-2);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 30px 80px rgba(7, 20, 26, 0.28);
}

.map-panel .panel-bar {
  background: rgba(255, 255, 255, 0.03);
  border-bottom-color: rgba(255, 255, 255, 0.09);
}

.map-panel .panel-dots i {
  background: rgba(255, 255, 255, 0.22);
}

.map-panel .panel-title {
  color: rgba(255, 255, 255, 0.8);
}

.map-panel .panel-meta {
  color: rgba(255, 255, 255, 0.42);
}

.map-content {
  position: relative;
  height: 326px;
  padding: 0;
  overflow: hidden;
}

.globe {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 286px;
  height: 286px;
  transform: translate(-50%, -52%);
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.09);
  background-image:
    radial-gradient(circle at 34% 28%, rgba(143, 227, 200, 0.16), rgba(143, 227, 200, 0.02) 58%, transparent 70%),
    radial-gradient(rgba(255, 255, 255, 0.2) 1px, transparent 1.1px);
  background-size: 100% 100%, 8px 8px;
  box-shadow: inset 0 0 70px rgba(0, 0, 0, 0.55);
}

.map-routes {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.map-routes text {
  font-family: var(--font-sans);
  letter-spacing: 0.05em;
}

.route {
  animation: routeFlow 14s linear infinite;
}

.route-b {
  animation-duration: 18s;
  animation-direction: reverse;
}

.route-c {
  animation-duration: 22s;
}

@keyframes routeFlow {
  to { stroke-dashoffset: -140; }
}

.map-legend {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 16px;
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 10px;
  color: rgba(255, 255, 255, 0.5);
}

.map-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.map-legend i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
}

.lg-orange { background: var(--orange); }
.lg-mint { background: var(--mint); }

.legend-right {
  margin-left: auto;
  color: rgba(255, 255, 255, 0.72);
  font-family: var(--font-tech);
  letter-spacing: 0.04em;
}

/* ---------- 数据分析面板 ---------- */

.analytics-kpis {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 16px;
}

.analytics-kpis > div {
  padding-left: 14px;
  border-left: 1px solid var(--line-soft);
}

.analytics-kpis > div:first-child {
  padding-left: 0;
  border-left: 0;
}

.analytics-kpis span {
  display: block;
  font-size: 9.5px;
  color: var(--muted);
}

.analytics-kpis strong {
  display: block;
  margin-top: 3px;
  font-family: var(--font-tech);
  font-size: 21px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.analytics-kpis strong small {
  font-family: var(--font-sans);
  font-size: 9px;
  color: var(--muted);
  margin-left: 2px;
}

.analytics-kpis em {
  display: block;
  font-style: normal;
  font-size: 9px;
}

.analytics-kpis em.up { color: var(--mint-deep); }
.analytics-kpis em.down { color: var(--orange); }

.analytics-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 132px;
  margin: 24px 0 14px;
  padding-bottom: 1px;
  border-bottom: 1px solid var(--line-soft);
  background-image: linear-gradient(rgba(11, 28, 34, 0.05) 1px, transparent 1px);
  background-size: 100% 33%;
}

.analytics-chart span {
  flex: 1;
  height: var(--h);
  background: rgba(11, 28, 34, 0.14);
  transition: background 0.25s var(--ease);
  transform-origin: bottom;
}

.analytics-chart span:hover {
  background: rgba(11, 28, 34, 0.3);
}

.analytics-chart .is-peak {
  background: var(--orange);
}

.analytics-foot {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 9.5px;
  color: rgba(11, 28, 34, 0.4);
  font-family: var(--font-tech);
  letter-spacing: 0.02em;
}

/* ============================== 为什么选择钰鸣 ============================== */

.why {
  position: relative;
  padding: 110px 0 104px;
  background: var(--ink);
  color: var(--white);
  overflow: hidden;
}

.why::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 90px 90px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 30% 20%, #000, transparent 80%);
  mask-image: radial-gradient(ellipse 80% 60% at 30% 20%, #000, transparent 80%);
  pointer-events: none;
}

.why .wrap {
  position: relative;
}

.why .section-head {
  margin-bottom: 58px;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-dark);
}

.why-item {
  padding: 34px 30px 6px;
  border-left: 1px solid var(--line-dark);
}

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

.why-num {
  display: block;
  font-family: var(--font-tech);
  font-size: 54px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.01em;
  color: var(--orange);
}

.why-unit {
  display: block;
  margin-top: 12px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.48);
}

.why-item p {
  max-width: 300px;
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.6);
}

.why-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin-top: 64px;
  border-top: 1px solid var(--line-dark);
}

.why-step {
  padding: 26px 26px 0 0;
}

.why-step + .why-step {
  padding-left: 26px;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
}

.step-num {
  font-family: var(--font-tech);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.why-step h4 {
  margin-top: 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
}

.why-step p {
  margin-top: 8px;
  font-size: 11.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.45);
  max-width: 240px;
}

/* ============================== 平台对接 ============================== */

.integrations {
  padding-bottom: 108px;
}

.integration-block {
  margin-top: 46px;
}

.integration-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--line);
}

.integration-head h3 {
  font-size: 17px;
  font-weight: 700;
}

.integration-head span {
  font-size: 11.5px;
  color: var(--muted);
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-left: 1px solid var(--line);
  border-top: 1px solid var(--line);
  margin-top: 20px;
}

.platform {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  grid-template-rows: auto auto;
  align-items: center;
  column-gap: 10px;
  padding: 17px 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 0.25s var(--ease);
}

.platform:hover {
  background: var(--white);
}

.pf-mark {
  grid-row: 1 / span 2;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: var(--white);
  font-family: var(--font-tech);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: rgba(11, 28, 34, 0.6);
  transition: background 0.25s var(--ease), color 0.25s var(--ease),
    border-color 0.25s var(--ease);
}

.platform:hover .pf-mark {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--orange-ink);
}

.pf-name {
  font-size: 12.5px;
  font-weight: 600;
  line-height: 1.4;
}

.platform small {
  font-size: 9.5px;
  color: var(--muted);
  line-height: 1.4;
}

.eco-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-left: 1px solid var(--line);
  border-top: 1px solid var(--line);
  margin-top: 20px;
}

.eco-item {
  padding: 26px 24px 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 0.25s var(--ease);
}

.eco-item:hover {
  background: var(--white);
}

.eco-item svg {
  width: 24px;
  height: 24px;
  color: var(--orange);
}

.eco-item h4 {
  margin-top: 16px;
  font-size: 14.5px;
  font-weight: 700;
}

.eco-item p {
  margin-top: 7px;
  font-size: 11.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 300px;
}

/* ============================== 套餐价格 ============================== */

.pricing-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.billing-toggle {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--line);
  background: var(--white);
}

.billing-toggle button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 20px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease);
}

.billing-toggle button.is-active {
  background: var(--ink);
  color: var(--white);
}

.billing-toggle i {
  font-style: normal;
  font-size: 9px;
  color: var(--orange);
}

.billing-toggle button.is-active i {
  color: var(--mint);
}

.pricing-note {
  font-size: 11px;
  color: var(--muted);
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 26px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.plan {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 28px 24px 26px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 0.25s var(--ease);
}

.plan:hover {
  background: var(--white);
}

.plan-name {
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.plan-audience {
  margin-top: 5px;
  font-size: 11px;
  line-height: 1.7;
  color: var(--muted);
}

.plan-price {
  display: flex;
  align-items: baseline;
  gap: 5px;
  margin-top: 22px;
  font-family: var(--font-tech);
}

.plan-price .currency {
  font-size: 15px;
  color: var(--muted);
}

.plan-price .amount {
  font-size: 38px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.01em;
}

.plan-price .unit {
  font-family: var(--font-sans);
  font-size: 11px;
  color: var(--muted);
}

.plan-price.is-talk .amount {
  font-family: var(--font-sans);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.plan-sub {
  min-height: 17px;
  margin-top: 9px;
  font-size: 10px;
  color: var(--muted);
}

.plan-list {
  flex: 1;
  margin-top: 20px;
  padding-top: 4px;
  border-top: 1px solid var(--line);
}

.plan-list li {
  position: relative;
  padding: 8px 0 8px 18px;
  font-size: 11.5px;
  line-height: 1.6;
  color: rgba(11, 28, 34, 0.76);
}

.plan-list li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 13px;
  width: 7px;
  height: 4px;
  border-left: 1.5px solid var(--mint-deep);
  border-bottom: 1.5px solid var(--mint-deep);
  transform: rotate(-45deg);
}

.plan-list li.is-off {
  color: rgba(11, 28, 34, 0.3);
}

.plan-list li.is-off::before {
  top: 17px;
  width: 7px;
  height: 0;
  border: 0;
  border-top: 1px solid rgba(11, 28, 34, 0.24);
  transform: none;
}

.plan-cta {
  width: 100%;
  height: 44px;
  margin-top: 24px;
  font-size: 12.5px;
}

.btn-outline {
  border-color: rgba(11, 28, 34, 0.2);
  background: transparent;
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.plan.is-featured {
  z-index: 1;
  background: var(--ink);
  border-color: var(--ink);
  box-shadow: 0 22px 54px rgba(7, 20, 26, 0.2);
}

.plan.is-featured:hover {
  background: var(--ink-2);
}

.plan-badge {
  position: absolute;
  top: 0;
  right: 0;
  padding: 4px 10px 5px;
  background: var(--orange);
  color: var(--orange-ink);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.plan.is-featured .plan-name {
  color: var(--white);
}

.plan.is-featured .plan-audience,
.plan.is-featured .plan-price .currency,
.plan.is-featured .plan-price .unit,
.plan.is-featured .plan-sub {
  color: rgba(255, 255, 255, 0.46);
}

.plan.is-featured .plan-price .amount {
  color: var(--white);
}

.plan.is-featured .plan-list {
  border-color: rgba(255, 255, 255, 0.14);
}

.plan.is-featured .plan-list li {
  color: rgba(255, 255, 255, 0.76);
}

.plan.is-featured .plan-list li::before {
  border-color: var(--mint);
}

.plan.is-featured .plan-list li.is-off {
  color: rgba(255, 255, 255, 0.28);
}

.plan.is-featured .plan-list li.is-off::before {
  border-color: rgba(255, 255, 255, 0.22);
}

.pricing-foot {
  margin-top: 16px;
  font-size: 10.5px;
  line-height: 1.8;
  color: rgba(11, 28, 34, 0.4);
}

/* ============================== 联系 ============================== */

.contact {
  position: relative;
  padding: 100px 0 92px;
  background:
    radial-gradient(700px 420px at 88% 0%, rgba(255, 91, 51, 0.13), transparent 70%),
    var(--ink-2);
  color: var(--white);
  overflow: hidden;
}

.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(143, 227, 200, 0.16) 1px, transparent 1px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(ellipse 50% 70% at 92% 20%, #000, transparent 75%);
  mask-image: radial-gradient(ellipse 50% 70% at 92% 20%, #000, transparent 75%);
  pointer-events: none;
}

.contact .wrap {
  position: relative;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
  gap: 76px;
  align-items: start;
}

.contact h2 {
  font-size: clamp(30px, 3.3vw, 43px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.03em;
}

.contact-lede {
  max-width: 440px;
  margin-top: 20px;
  font-size: 14px;
  line-height: 1.95;
  color: rgba(255, 255, 255, 0.58);
}

.contact-list {
  margin-top: 38px;
  max-width: 460px;
}

.contact-list li {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
}

.contact-list li:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-label {
  font-size: 10.5px;
  color: rgba(255, 255, 255, 0.38);
  padding-top: 3px;
  letter-spacing: 0.04em;
}

.contact-list a,
.contact-list li > span:last-child {
  color: rgba(255, 255, 255, 0.82);
  transition: color 0.2s var(--ease);
}

.contact-list a:hover {
  color: var(--orange-2);
}

.contact-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.contact-tags span {
  padding: 6px 11px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 10px;
  color: rgba(255, 255, 255, 0.55);
  border-radius: 2px;
}

.contact-form-wrap {
  padding: 30px 32px 28px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 4px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.24);
}

.contact-form h3 {
  font-size: 19px;
  font-weight: 700;
}

.form-sub {
  margin: 7px 0 24px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.42);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 15px;
}

.field label {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.6);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 2px;
  color: var(--white);
  font-size: 12.5px;
  line-height: 1.6;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease),
    background 0.2s var(--ease);
}

.field input::placeholder,
.field textarea::placeholder {
  color: rgba(255, 255, 255, 0.27);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--orange);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 0 3px rgba(255, 91, 51, 0.14);
}

.field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, rgba(255, 255, 255, 0.5) 50%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.5) 50%, transparent 50%);
  background-position: calc(100% - 16px) 19px, calc(100% - 11px) 19px;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 30px;
}

.field select option {
  color: var(--text);
  background: var(--white);
}

.field textarea {
  resize: vertical;
  min-height: 84px;
}

.field.is-invalid input {
  border-color: #ff8264;
}

.field-error {
  font-size: 10px;
  line-height: 1.4;
  color: #ff9a80;
}

.contact-form .btn {
  margin-top: 2px;
}

.form-note {
  margin-top: 11px;
  font-size: 10px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.32);
}

.form-success {
  padding: 26px 4px 12px;
  text-align: center;
}

.success-mark {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(143, 227, 200, 0.45);
  border-radius: 50%;
  color: var(--mint);
}

.success-mark svg {
  width: 22px;
  height: 22px;
}

.form-success h3 {
  margin-top: 18px;
  font-size: 20px;
}

.form-success p {
  max-width: 320px;
  margin: 10px auto 22px;
  font-size: 12.5px;
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.55);
}

.form-success .btn-ghost {
  height: 40px;
  font-size: 12.5px;
}

/* ============================== 页脚 ============================== */

.site-footer {
  background: #051118;
  color: rgba(255, 255, 255, 0.6);
  padding-top: 62px;
}

.footer-main {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr));
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand .brand {
  margin-bottom: 18px;
}

.footer-brand p {
  font-size: 12.5px;
  color: rgba(255, 255, 255, 0.45);
}

.footer-company {
  display: block;
  margin-top: 16px;
  font-size: 10.5px;
  color: rgba(255, 255, 255, 0.3);
}

.footer-col h4 {
  margin-bottom: 16px;
  font-size: 11.5px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
}

.footer-col a,
.footer-col span {
  display: block;
  margin-bottom: 9px;
  font-size: 11.5px;
  color: rgba(255, 255, 255, 0.42);
  transition: color 0.2s var(--ease);
}

.footer-col a:hover {
  color: var(--orange-2);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  font-size: 10.5px;
  color: rgba(255, 255, 255, 0.3);
}

.footer-legal {
  font-family: var(--font-tech);
  letter-spacing: 0.03em;
}

/* ============================== 回到顶部 ============================== */

.to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 0;
  border-radius: 3px;
  background: var(--orange);
  color: var(--orange-ink);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease),
    background 0.25s var(--ease);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

.to-top svg {
  width: 18px;
  height: 18px;
}

.to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.to-top:hover {
  background: var(--orange-2);
}

/* ============================== 滚动揭示 ============================== */

.js .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
  transition-delay: var(--d, 0ms);
}

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

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

@media (max-width: 1080px) {
  .main-nav {
    gap: 22px;
  }

  .hero-grid {
    gap: 38px;
  }

  .hero-metrics {
    gap: 12px;
  }

  .hero-metrics dt {
    font-size: 22px;
  }

  .solution-grid {
    gap: 48px;
  }

  .contact-grid {
    gap: 48px;
  }
}

@media (max-width: 960px) {
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    z-index: 110;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 8px 24px 26px;
    background: #07141a;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transform: translateY(-115%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s var(--ease), opacity 0.3s var(--ease);
  }

  .main-nav a {
    padding: 14px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
  }

  .main-nav a::after {
    display: none;
  }

  .nav-mobile-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 18px;
    padding: 12px 0;
    background: var(--orange);
    color: var(--orange-ink) !important;
    border-bottom: 0 !important;
    border-radius: 3px;
    font-weight: 600;
    font-size: 14px !important;
  }

  body.nav-open .main-nav {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }

  body.nav-open {
    overflow: hidden;
  }

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

  .header-actions {
    margin-left: auto;
  }

  .header-inner {
    gap: 18px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 54px;
  }

  .hero-visual {
    max-width: 580px;
    margin-inline: auto;
    width: 100%;
  }

  .hero h1 {
    max-width: 16em;
  }

  .section-head {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
    margin-bottom: 42px;
  }

  .section-desc {
    max-width: 620px;
  }

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

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

  .solution.is-reverse .solution-copy {
    order: 0;
  }

  .solution-visual {
    max-width: 600px;
  }

  .solution {
    padding: 68px 0;
  }

  .why-grid {
    grid-template-columns: minmax(0, 1fr);
    border-top: 0;
  }

  .why-item {
    padding: 26px 0;
    border-left: 0;
    border-top: 1px solid var(--line-dark);
  }

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

  .why-item p {
    max-width: 620px;
  }

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

  .why-step:nth-child(3) {
    padding-left: 0;
    border-left: 0;
  }

  .why-step:nth-child(n + 3) {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }

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

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

  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 44px;
  }

  .contact-lede,
  .contact-list {
    max-width: 620px;
  }

  .footer-main {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px;
  }
}

@media (max-width: 680px) {
  .wrap {
    width: calc(100% - 36px);
  }

  :root {
    --header-h: 70px;
  }

  .brand-text strong {
    font-size: 15px;
  }

  .header-cta {
    display: none;
  }

  .hero {
    padding-top: calc(var(--header-h) + 54px);
  }

  .hero h1 {
    font-size: clamp(34px, 9.4vw, 46px);
    line-height: 1.2;
  }

  .hero-lede {
    margin-top: 20px;
    font-size: 14px;
    line-height: 1.9;
  }

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

  .hero-actions .btn {
    height: 46px;
    padding: 0 20px;
    font-size: 13px;
  }

  .hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px 12px;
    margin-top: 36px;
    padding-top: 22px;
  }

  .hero-metrics dt {
    font-size: 22px;
  }

  .hero-visual {
    padding-top: 24px;
  }

  .ops-board {
    transform: none;
  }

  .hero-visual:hover .ops-board {
    transform: translateY(-2px);
  }

  .board-tag {
    top: -4px;
    right: 0;
    font-size: 9.5px;
    padding: 7px 10px;
  }

  .board-chip {
    left: 0;
    bottom: -12px;
    font-size: 9.5px;
    padding: 8px 11px;
  }

  .board-kpi {
    padding-inline: 9px;
  }

  .board-kpi strong {
    font-size: 21px;
  }

  .board-body {
    padding: 14px 14px 16px;
  }

  .platform-rail {
    display: block;
    margin-top: 44px;
    padding-bottom: 26px;
    overflow: hidden;
  }

  .rail-label {
    display: block;
    margin-bottom: 12px;
  }

  .rail-list {
    flex-wrap: nowrap;
    gap: 22px;
    overflow-x: auto;
    padding-bottom: 6px;
    scrollbar-width: none;
    font-size: 11px;
  }

  .rail-list::-webkit-scrollbar {
    display: none;
  }

  .section,
  .capability-section,
  .integrations {
    padding: 74px 0;
  }

  .solutions {
    padding-top: 74px;
  }

  .solution {
    padding: 56px 0;
  }

  .solutions > .solution:first-of-type {
    padding-top: 20px;
  }

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

  .module {
    padding: 24px 20px;
  }

  .module p {
    min-height: 0;
  }

  .module h3 {
    margin-top: 20px;
  }

  .solution h3 {
    font-size: 26px;
  }

  .solution-list li {
    font-size: 13px;
  }

  .flow-row {
    grid-template-columns: 108px minmax(0, 1fr) 38px;
    gap: 9px;
  }

  .flow-label strong {
    font-size: 13.5px;
  }

  .ledger-row {
    grid-template-columns: minmax(0, 1.1fr) 0.5fr minmax(0, 1fr) 0.6fr;
    font-size: 10px;
  }

  .ledger-row span:nth-child(3) {
    font-size: 10.5px;
  }

  .map-content {
    height: 290px;
  }

  .globe {
    width: 240px;
    height: 240px;
  }

  .map-legend {
    gap: 12px;
    font-size: 9px;
    left: 14px;
    right: 14px;
  }

  .why {
    padding: 74px 0 72px;
  }

  .why .section-head {
    margin-bottom: 38px;
  }

  .why-num {
    font-size: 44px;
  }

  .why-steps {
    grid-template-columns: minmax(0, 1fr);
    margin-top: 42px;
  }

  .why-step {
    padding: 20px 0 0;
    border-left: 0 !important;
  }

  .why-step + .why-step {
    margin-top: 0;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }

  .why-step p {
    max-width: 100%;
  }

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

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

  .integration-head {
    display: block;
  }

  .integration-head span {
    display: block;
    margin-top: 5px;
  }

  .contact {
    padding: 72px 0 68px;
  }

  .contact-form-wrap {
    padding: 24px 20px 22px;
  }

  .form-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .footer-main {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding-bottom: 34px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .to-top {
    right: 16px;
    bottom: 16px;
  }
}

@media (max-width: 400px) {
  .brand-text small {
    display: none;
  }

  .board-date {
    display: none;
  }

  .order-row {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.6fr) auto;
  }

  .order-id {
    display: none;
  }

  .board-kpi strong {
    font-size: 19px;
  }

  .hero-metrics dd {
    font-size: 10px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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

/* 套餐价格 · 响应式 */
@media (max-width: 1080px) {
  .plan-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .plan.is-featured {
    box-shadow: none;
  }
}

@media (max-width: 680px) {
  .pricing {
    padding: 74px 0;
  }

  .pricing-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .billing-toggle {
    width: 100%;
  }

  .billing-toggle button {
    flex: 1;
    justify-content: center;
  }

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

  .plan {
    padding: 24px 20px;
  }
}