:root {
  --blue-deep: #0a3d8c;
  --blue-mid: #1780d0;
  --cyan: #2ec4d6;
  --ink: #12161c;
  --muted: #5c6670;
  --line: rgba(10, 61, 140, 0.1);
  --white: #fff;
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: var(--font);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  min-height: 100%;
  overflow-x: hidden;
  background:
    radial-gradient(ellipse 80% 55% at 85% 15%, rgba(46, 196, 214, 0.22), transparent 55%),
    radial-gradient(ellipse 60% 50% at 5% 85%, rgba(10, 61, 140, 0.14), transparent 50%),
    linear-gradient(155deg, #dceef6 0%, #f2f6f9 42%, #e8eef3 100%);
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

/* —— 顶栏 —— */
.nav {
  position: absolute;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 clamp(20px, 4vw, 48px);
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  left: 0;
  right: 0;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.03em;
}

.nav-links {
  display: flex;
  gap: 28px;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
}

.nav-links a {
  position: relative;
  padding: 4px 0;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.is-active { color: var(--blue-mid); }

.nav-links a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue-deep), var(--cyan));
  border-radius: 1px;
}

.nav-cta,
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 500;
  color: #fff;
  background: linear-gradient(105deg, var(--blue-deep), var(--cyan));
  border-radius: 4px;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
}

.nav-cta:hover,
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }

.btn-primary { padding: 12px 24px; font-size: 14px; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 500;
  color: var(--blue-deep);
  border: 1px solid rgba(10, 61, 140, 0.28);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.8);
  border-color: var(--blue-mid);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--ink);
  transition: transform 0.2s, opacity 0.2s;
}

.nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: absolute;
  top: 64px;
  left: 16px;
  right: 16px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 32px rgba(10, 61, 140, 0.1);
  flex-direction: column;
  gap: 4px;
  z-index: 30;
}

.mobile-menu.is-open { display: flex; }

.mobile-menu a {
  padding: 12px 14px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 4px;
  color: var(--muted);
}

.mobile-menu a:hover,
.mobile-menu a.is-active {
  background: rgba(23, 128, 208, 0.08);
  color: var(--blue-mid);
}

/* —— 页面壳 —— */
.page {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px clamp(20px, 4vw, 48px) 28px;
}

.page-inner {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 20px 0 12px;
  min-height: 0;
  animation: rise 0.65s ease both;
}

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

.page-head .eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  color: var(--blue-mid);
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.page-head h1 {
  font-size: clamp(26px, 3.5vw, 34px);
  font-weight: 700;
  margin-bottom: 8px;
}

.page-head p {
  font-size: 14px;
  color: var(--muted);
  max-width: 480px;
  line-height: 1.65;
}

.logo-dx {
  display: block;
  width: 72px;
  height: 48px;
  flex-shrink: 0;
}

.logo-dx--sm { width: 42px; height: 28px; }
.logo-dx svg { width: 100%; height: 100%; display: block; }

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: #8a939c;
}

.footer-links { display: flex; gap: 20px; }
.footer-links a:hover { color: var(--blue-mid); }

/* —— 首页扩展区块 —— */
.page--scroll {
  min-height: auto;
  padding-bottom: 36px;
}

.page--scroll .hero {
  flex: 0 0 auto;
  min-height: auto;
  padding-bottom: 8px;
}

/* 中间：平台运营速览 */
.home-mid {
  margin-top: 36px;
  padding: 28px 24px 24px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 10px 28px rgba(10, 61, 140, 0.05);
  scroll-margin-top: 72px;
}

.home-mid .home-block-head {
  margin-bottom: 20px;
}

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

.ops-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.ops-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s, box-shadow 0.2s;
}

.ops-chip:hover {
  color: var(--blue-mid);
  border-color: rgba(23, 128, 208, 0.35);
}

.ops-chip.is-active {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(105deg, var(--blue-deep), var(--cyan));
  box-shadow: 0 6px 16px rgba(10, 61, 140, 0.2);
}

.ops-chip-ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  background: rgba(23, 128, 208, 0.12);
  color: var(--blue-mid);
}

.ops-chip.is-active .ops-chip-ico {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}

.ops-panels { position: relative; min-height: 220px; }

.ops-panel {
  display: none;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: stretch;
  padding: 20px;
  background: linear-gradient(135deg, rgba(232, 244, 250, 0.9), rgba(255, 255, 255, 0.95));
  border: 1px solid var(--line);
  border-radius: 10px;
  animation: rise 0.35s ease both;
}

.ops-panel.is-active { display: grid; }

.ops-panel-copy h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.ops-panel-copy p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 12px;
}

.ops-panel-copy ul {
  list-style: none;
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

.ops-panel-copy li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  color: var(--ink);
  line-height: 1.45;
}

.ops-panel-copy li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue-deep), var(--cyan));
}

.ops-panel-art {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px dashed rgba(23, 128, 208, 0.2);
}

.mini-table {
  width: 100%;
  display: grid;
  gap: 6px;
  font-size: 12px;
}

.mini-row {
  display: grid;
  grid-template-columns: 1.2fr 0.7fr 0.5fr;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 6px;
  background: rgba(23, 128, 208, 0.04);
  color: var(--muted);
}

.mini-row.mini-head {
  background: transparent;
  font-weight: 600;
  color: var(--ink);
  padding-bottom: 2px;
}

.mini-row.is-on {
  background: rgba(23, 128, 208, 0.12);
  color: var(--ink);
  box-shadow: inset 3px 0 0 var(--blue-mid);
}

.mini-row .ok { color: #1a8f6e; font-weight: 600; }
.mini-row .warn { color: #c47a1a; font-weight: 600; }

.price-cards {
  display: grid;
  gap: 10px;
  width: 100%;
}

.price-card {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  gap: 2px 12px;
  padding: 12px 14px;
  border-radius: 8px;
  background: rgba(23, 128, 208, 0.05);
  border: 1px solid transparent;
}

.price-card.is-on {
  border-color: rgba(23, 128, 208, 0.35);
  background: rgba(46, 196, 214, 0.1);
}

.price-card b { font-size: 12px; color: var(--muted); font-weight: 500; }
.price-card strong { font-size: 20px; color: var(--blue-deep); grid-row: span 2; align-self: center; }
.price-card span { font-size: 12px; color: var(--ink); }

.channel-bars {
  width: 100%;
  display: grid;
  gap: 14px;
}

.bar-row {
  display: grid;
  grid-template-columns: 48px 1fr 36px;
  gap: 10px;
  align-items: center;
  font-size: 12px;
  color: var(--muted);
}

.bar-row b { text-align: right; color: var(--blue-deep); font-weight: 600; }

.bar {
  height: 8px;
  border-radius: 999px;
  background: rgba(10, 61, 140, 0.08);
  overflow: hidden;
}

.bar i {
  display: block;
  height: 100%;
  width: var(--w);
  border-radius: inherit;
  background: linear-gradient(90deg, var(--blue-deep), var(--cyan));
}

.order-stats {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  text-align: center;
}

.order-stats div {
  padding: 16px 8px;
  border-radius: 8px;
  background: rgba(23, 128, 208, 0.06);
}

.order-stats strong {
  display: block;
  font-size: 22px;
  font-weight: 700;
  background: linear-gradient(105deg, var(--blue-deep), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 4px;
}

.order-stats span {
  font-size: 12px;
  color: var(--muted);
}

.home-more {
  margin-top: 40px;
  padding-top: 8px;
  scroll-margin-top: 80px;
}

.home-block--strip {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.home-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.7);
}

.strip-item {
  padding: 18px 16px;
  text-align: left;
  background: transparent;
  border: none;
  border-right: 1px solid var(--line);
  cursor: pointer;
  font: inherit;
  color: inherit;
  transition: background 0.2s;
}

.strip-item:last-child { border-right: none; }

.strip-item:hover,
.strip-item.is-active {
  background: rgba(23, 128, 208, 0.08);
}

.strip-item strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--ink);
}

.strip-item.is-active strong { color: var(--blue-mid); }

.strip-item span {
  font-size: 12px;
  color: var(--muted);
}

.strip-detail {
  margin: 12px 0 8px;
  padding: 12px 14px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.65;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--line);
  border-radius: 6px;
  min-height: 48px;
}

.home-block {
  margin-top: 48px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
}

.home-block-head {
  margin-bottom: 18px;
}

.home-block-head h2 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 6px;
}

.home-block-head p {
  font-size: 13px;
  color: var(--muted);
}

.home-steps .step { min-width: 100px; }

.scene-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.scene-card {
  display: block;
  padding: 20px 18px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: 8px;
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
}

.scene-card:hover {
  border-color: rgba(23, 128, 208, 0.4);
  background: #fff;
  transform: translateY(-2px);
}

.scene-card strong {
  display: block;
  font-size: 16px;
  margin-bottom: 8px;
}

.scene-card span {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.55;
}

.about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.about-grid .tab-panels { min-height: 200px; }

@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes glow {
  0%, 100% { opacity: 0.75; }
  50% { opacity: 1; }
}

/* —— 首页 —— */
.hero {
  flex: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  min-height: 0;
  padding: 20px 0 8px;
}

.hero-copy { animation: rise 0.75s ease both; }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  color: var(--blue-mid);
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.brand-lockup h1 {
  font-size: clamp(36px, 5.5vw, 52px);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.1;
}

.hero-copy h2 {
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.35;
}

.hero-copy > p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.7;
  max-width: 400px;
  margin-bottom: 28px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  padding-top: 22px;
  animation: rise 0.75s 0.15s ease both;
}

.feature {
  display: block;
  width: 100%;
  text-align: left;
  padding: 0 18px 0 0;
  border: none;
  border-right: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  color: inherit;
  transition: opacity 0.2s;
}

.feature:last-child { border-right: none; padding-right: 0; }
.feature:not(:first-child) { padding-left: 18px; }
.feature:hover { opacity: 0.85; }
.feature:hover h3 { color: var(--blue-mid); }
.feature:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.feature-icon {
  width: 36px;
  height: 36px;
  margin-bottom: 10px;
  color: var(--blue-mid);
}

.feature-icon svg { width: 100%; height: 100%; }

.feature h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  transition: color 0.2s;
}

.feature p {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.55;
}

.feature-more {
  display: inline-block;
  margin-top: 8px;
  font-size: 12px;
  font-weight: 500;
  color: var(--blue-mid);
}

.hero-visual {
  position: relative;
  height: min(420px, 52vh);
  min-height: 280px;
  animation: rise 0.85s 0.1s ease both;
}

.visual-frame {
  position: absolute;
  inset: 0;
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(145deg, #0a3d8c 0%, #1568b0 42%, #2ec4d6 100%);
}

.visual-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 28% 35%, rgba(255, 255, 255, 0.22), transparent 42%),
    radial-gradient(circle at 78% 68%, rgba(255, 255, 255, 0.12), transparent 40%);
  animation: glow 7s ease-in-out infinite;
}

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

.visual-caption {
  position: absolute;
  left: 24px;
  bottom: 24px;
  z-index: 2;
  color: #fff;
}

.visual-caption strong {
  display: block;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 4px;
}

.visual-caption span { font-size: 13px; opacity: 0.85; }

.visual-hotspots {
  position: absolute;
  inset: 0;
  z-index: 3;
}

.hotspot {
  position: absolute;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  color: var(--blue-deep);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
  transition: transform 0.2s;
}

.hotspot:hover { transform: scale(1.12); }

.hotspot::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.55);
  animation: ping 2s ease-out infinite;
}

@keyframes ping {
  0% { transform: scale(0.85); opacity: 0.8; }
  100% { transform: scale(1.45); opacity: 0; }
}

.hotspot[data-spot="1"] { left: 18%; top: 68%; }
.hotspot[data-spot="2"] { left: 46%; top: 40%; }
.hotspot[data-spot="3"] { left: 78%; top: 22%; }

.spot-tip {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  transform: translateX(-50%);
  min-width: 120px;
  padding: 8px 10px;
  background: #fff;
  color: var(--ink);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
  border-radius: 6px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  white-space: nowrap;
}

.hotspot.is-on .spot-tip,
.hotspot:hover .spot-tip { opacity: 1; }

/* —— Tabs —— */
.tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.tab-btn {
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--line);
  border-radius: 4px;
  cursor: pointer;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.tab-btn:hover { color: var(--blue-mid); border-color: rgba(23, 128, 208, 0.35); }

.tab-btn.is-active {
  color: #fff;
  background: linear-gradient(105deg, var(--blue-deep), var(--cyan));
  border-color: transparent;
}

.tab-panels { position: relative; min-height: 220px; }

.tab-panel {
  display: none;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: stretch;
  animation: rise 0.4s ease both;
}

.tab-panel.is-active { display: grid; }

.panel-copy h2 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
}

.panel-copy p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.checklist {
  list-style: none;
  display: grid;
  gap: 10px;
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--ink);
  line-height: 1.5;
}

.checklist li::before {
  content: "";
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 1px;
  border-radius: 50%;
  background:
    linear-gradient(135deg, var(--blue-deep), var(--cyan)) center / 100% 100% no-repeat;
  box-shadow: inset 0 0 0 5px #fff;
  border: 2px solid transparent;
  background-clip: padding-box;
}

.panel-visual {
  border-radius: 10px;
  padding: 24px;
  background: linear-gradient(145deg, #0a3d8c, #2ec4d6);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 220px;
}

.panel-visual strong {
  font-size: 18px;
  margin-bottom: 6px;
}

.panel-visual span {
  font-size: 13px;
  opacity: 0.85;
  line-height: 1.5;
}

/* —— 手风琴 —— */
.accordion {
  display: grid;
  gap: 8px;
  margin-top: 8px;
}

.acc-item {
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}

.acc-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  font-size: 14px;
  font-weight: 600;
  text-align: left;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--ink);
}

.acc-trigger:hover { color: var(--blue-mid); }

.acc-icon {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
}

.acc-icon::before,
.acc-icon::after {
  content: "";
  position: absolute;
  background: var(--blue-mid);
  transition: transform 0.25s;
}

.acc-icon::before {
  left: 4px;
  right: 4px;
  top: 9px;
  height: 2px;
}

.acc-icon::after {
  top: 4px;
  bottom: 4px;
  left: 9px;
  width: 2px;
}

.acc-item.is-open .acc-icon::after { transform: scaleY(0); }

.acc-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.acc-body-inner {
  padding: 0 16px 14px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.65;
}

/* —— 解决方案场景切换 —— */
.scene-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  align-items: start;
}

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

.scene-btn {
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--line);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.scene-btn:hover { color: var(--blue-mid); }

.scene-btn.is-active {
  color: #fff;
  background: linear-gradient(105deg, var(--blue-deep), var(--cyan));
  border-color: transparent;
}

.scene-panel {
  display: none;
  padding: 28px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: 10px;
  min-height: 280px;
  animation: rise 0.35s ease both;
}

.scene-panel.is-active { display: block; }

.scene-panel h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.scene-panel > p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 560px;
}

.scene-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 22px;
}

.stat {
  padding-top: 12px;
  border-top: 2px solid transparent;
  border-image: linear-gradient(90deg, var(--blue-deep), var(--cyan)) 1;
}

.stat strong {
  display: block;
  font-size: 24px;
  font-weight: 700;
  background: linear-gradient(105deg, var(--blue-deep), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 4px;
}

.stat span {
  font-size: 12px;
  color: var(--muted);
}

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

.step {
  flex: 1;
  min-width: 120px;
  padding: 12px 14px;
  background: rgba(23, 128, 208, 0.06);
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: border-color 0.2s, background 0.2s;
}

.step:hover,
.step.is-active {
  border-color: rgba(23, 128, 208, 0.35);
  background: rgba(23, 128, 208, 0.1);
}

.step b {
  display: block;
  font-size: 12px;
  color: var(--blue-mid);
  margin-bottom: 4px;
}

.step-detail {
  margin-top: 14px;
  padding: 12px 14px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 6px;
  border: 1px solid var(--line);
  min-height: 52px;
}

/* —— 合作表单 —— */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  align-items: start;
}

.contact-aside h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.contact-aside p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.contact-channels {
  display: grid;
  gap: 10px;
}

.channel {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--line);
  border-radius: 6px;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s;
  text-align: left;
  width: 100%;
  font: inherit;
  color: inherit;
}

.channel:hover {
  border-color: rgba(23, 128, 208, 0.4);
  transform: translateX(3px);
}

.channel strong {
  display: block;
  font-size: 13px;
  margin-bottom: 2px;
}

.channel span {
  font-size: 12px;
  color: var(--muted);
}

.form-card {
  padding: 24px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}

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

.field label {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 11px 12px;
  font: inherit;
  font-size: 14px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

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

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--blue-mid);
  box-shadow: 0 0 0 3px rgba(23, 128, 208, 0.12);
}

.field.is-error input,
.field.is-error select,
.field.is-error textarea {
  border-color: #d64545;
}

.field-error {
  font-size: 12px;
  color: #d64545;
  display: none;
}

.field.is-error .field-error { display: block; }

.form-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.form-hint {
  font-size: 12px;
  color: var(--muted);
}

/* —— 弹窗 / Toast —— */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(12, 28, 48, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}

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

.modal {
  width: min(420px, 100%);
  background: #fff;
  border-radius: 10px;
  padding: 28px 24px 22px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
  transform: translateY(12px) scale(0.98);
  transition: transform 0.25s;
}

.modal-backdrop.is-open .modal {
  transform: translateY(0) scale(1);
}

.modal h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.modal p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 20px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%) translateY(20px);
  z-index: 120;
  padding: 12px 18px;
  background: #0c2a4a;
  color: #fff;
  font-size: 13px;
  border-radius: 6px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.2);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
}

.toast.is-show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

@media (max-width: 900px) {
  .nav-links,
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }

  .page { padding-top: 72px; min-height: auto; }

  .hero {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero-visual {
    height: 220px;
    min-height: 200px;
    order: -1;
  }

  .features { grid-template-columns: 1fr; gap: 16px; }

  .feature,
  .feature:not(:first-child) {
    border-right: none;
    border-bottom: 1px solid var(--line);
    padding: 0 0 16px;
  }

  .feature:last-child { border-bottom: none; padding-bottom: 0; }

  .tab-panel { grid-template-columns: 1fr; }
  .scene-layout { grid-template-columns: 1fr; }
  .scene-nav { flex-direction: row; flex-wrap: wrap; }
  .scene-btn { flex: 1; min-width: 140px; }
  .scene-stats { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .page--scroll .hero { min-height: auto; }

  .home-mid {
    margin-top: 24px;
    padding: 20px 16px 18px;
  }

  .ops-panel {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .order-stats { grid-template-columns: 1fr; }

  .home-more {
    margin-top: 28px;
  }

  .home-strip { grid-template-columns: 1fr 1fr; }
  .strip-item:nth-child(2) { border-right: none; }
  .strip-item:nth-child(1),
  .strip-item:nth-child(2) { border-bottom: 1px solid var(--line); }

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