/* 充电运营落地页 */
:root {
  --background: #f4f6fb;
  --foreground: #141c30;
  --primary: #1f4eb9;
  --primary-light: #3b82f6;
  --accent: #6366f1;
  --card: #fff;
  --muted: #f1f4fb;
  --muted-fg: #647496;
  --border: #dae0f0;
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;
  --slate-950: #020617;
  --max-w: 1440px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --shadow-custom: 0 2px 12px rgba(31, 78, 185, 0.08);
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--background);
  color: var(--foreground);
  overflow-x: hidden;
  line-height: 1.5;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* 区块容器 */
.section-layout {
  width: 100%;
  display: block;
}

.section-layout.section-cta {
  display: block;
}

.section-inner {
  width: 100%;
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
  padding: 2rem 1rem;
}

@media (min-width: 768px) {
  .section-inner {
    padding: 3rem 2rem;
  }
}

.section-header {
  text-align: center;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .section-header {
    margin-bottom: 3rem;
  }
}

.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 0.75rem;
}

@media (min-width: 640px) {
  .section-title {
    font-size: 1.875rem;
  }
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.25rem;
  }
}

.section-desc {
  font-size: 0.875rem;
  color: var(--slate-600);
  max-width: 42rem;
  margin: 0 auto;
  padding: 0 0.5rem;
}

@media (min-width: 640px) {
  .section-desc {
    font-size: 1rem;
  }
}

@media (min-width: 768px) {
  .section-desc {
    font-size: 1.125rem;
  }
}

/* ── Hero ── */
.charge-hero {
  position: relative;
  width: 100%;
  overflow: hidden;
  background: linear-gradient(135deg, #071120 0%, #0d1f3c 40%, #0a1828 70%, #071120 100%);
}

.charge-hero .hex-grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='100'%3E%3Cpolygon points='28,2 54,16 54,44 28,58 2,44 2,16' fill='none' stroke='rgba(56,189,248,0.07)' stroke-width='1'/%3E%3Cpolygon points='28,52 54,66 54,94 28,108 2,94 2,66' fill='none' stroke='rgba(56,189,248,0.07)' stroke-width='1'/%3E%3C/svg%3E");
  background-size: 56px 100px;
}

.charge-hero .glow-orb {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.charge-hero .glow-orb-1 {
  top: -10rem;
  right: -10rem;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(31, 78, 185, 0.35) 0%, transparent 65%);
  animation: glowPulse 5s ease-in-out infinite;
}

.charge-hero .glow-orb-2 {
  bottom: -15rem;
  left: -10rem;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.2) 0%, transparent 65%);
  animation: glowPulse 7s ease-in-out 2s infinite;
}

.charge-hero .glow-orb-3 {
  top: 50%;
  left: 33%;
  width: 400px;
  height: 400px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(34, 197, 94, 0.1) 0%, transparent 65%);
  animation: glowPulse 6s ease-in-out 1s infinite;
}

.charge-hero .grid-lines {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  animation: lineGlow 4s ease-in-out infinite;
}

.charge-hero .particle-layer {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  overflow: hidden;
}

.charge-hero .particle-layer canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.charge-hero .corner-deco {
  position: absolute;
  z-index: 0;
  pointer-events: none;
}

.charge-hero .corner-deco.top-left {
  top: 2rem;
  left: 2rem;
}

.charge-hero .corner-deco.top-right {
  top: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.charge-hero .corner-deco.bottom-left {
  bottom: 2rem;
  left: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.corner-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: cornerPulse 2.5s ease-in-out infinite;
}

.corner-dot.delay {
  animation-delay: 1.2s;
}

.corner-line-h {
  width: 2rem;
  height: 1px;
  margin-top: 0.25rem;
}

.corner-line-v {
  width: 1px;
  height: 2rem;
}

.hero-inner {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  min-height: min(100vh, 860px);
  display: flex;
  flex-direction: column;
  padding: calc(var(--gw-header-h, 5rem) + 1.5rem) 1rem 4rem;
}

@media (min-width: 1024px) {
  .hero-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: calc(var(--gw-header-h, 5rem) + 2rem) 3rem 5rem;
  }
}

@media (min-width: 1280px) {
  .hero-inner {
    padding: 6rem 5rem;
  }
}

.hero-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  max-width: 42rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 2rem;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.4);
  color: rgba(147, 197, 253, 1);
  backdrop-filter: blur(8px);
  animation: badgeGlow 3s ease-in-out infinite;
}

.hero-badge svg {
  color: rgba(56, 189, 248, 1);
  flex-shrink: 0;
}

.hero-title {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.25;
  color: rgba(226, 236, 255, 1);
  margin-bottom: 1rem;
  width: 100%;
}

@media (min-width: 640px) {
  .hero-title {
    font-size: 1.875rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 2.25rem;
  }
}

.hero-title .gradient-line {
  display: block;
  margin-top: 0.75rem;
  padding-bottom: 0.5rem;
  font-size: 1.25rem;
  font-weight: 600;
  background: linear-gradient(90deg, rgba(56, 189, 248, 1), rgba(99, 102, 241, 1), rgba(147, 197, 253, 1));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

@media (min-width: 640px) {
  .hero-title .gradient-line {
    font-size: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .hero-title .gradient-line {
    font-size: 1.875rem;
  }
}

.hero-desc {
  font-size: 0.875rem;
  color: rgba(148, 163, 184, 1);
  margin-bottom: 2.5rem;
  max-width: 36rem;
  font-weight: 500;
}

@media (min-width: 640px) {
  .hero-desc {
    font-size: 1rem;
  }
}

@media (min-width: 1024px) {
  .hero-desc {
    font-size: 1.125rem;
  }
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.feature-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  backdrop-filter: blur(4px);
}

.feature-tag:nth-child(1) {
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: rgba(147, 197, 253, 1);
}

.feature-tag:nth-child(2) {
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.35);
  color: rgba(165, 180, 252, 1);
}

.feature-tag:nth-child(3) {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: rgba(110, 231, 183, 1);
}

.feature-tag:nth-child(4) {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: rgba(253, 211, 77, 1);
}

.feature-tag:nth-child(5) {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: rgba(252, 165, 165, 1);
}

.hero-cta {
  display: flex;
  flex-direction: row;
  gap: 0.75rem;
  flex-wrap: nowrap;
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
  color: #fff;
  background: linear-gradient(135deg, rgba(31, 78, 185, 1) 0%, rgba(56, 189, 248, 0.9) 100%);
  border: 1px solid rgba(56, 189, 248, 0.5);
  animation: btnPulse 2.5s ease-out infinite;
  transition: opacity 0.2s, transform 0.2s;
}

.btn-hero-primary:hover {
  opacity: 0.92;
  transform: translateY(-1px);
}

@media (min-width: 640px) {
  .btn-hero-primary {
    padding: 1rem 2rem;
    font-size: 1rem;
  }
}

.btn-hero-secondary {
  padding: 0.625rem 1.25rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
  color: rgba(147, 197, 253, 1);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(56, 189, 248, 0.25);
  backdrop-filter: blur(8px);
  transition: background 0.2s;
}

.btn-hero-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
}

@media (min-width: 640px) {
  .btn-hero-secondary {
    padding: 1rem 2rem;
    font-size: 1rem;
  }
}

.hero-visual {
  flex: 1;
  width: 100%;
  position: relative;
  z-index: 10;
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

@media (min-width: 1024px) {
  .hero-visual {
    margin-top: 0;
    justify-content: flex-end;
  }
}

.hero-mockup {
  position: relative;
  width: 100%;
  max-width: 360px;
  animation: heroFloat 6s ease-in-out infinite;
}

@media (min-width: 640px) {
  .hero-mockup {
    max-width: 460px;
  }
}

@media (min-width: 1024px) {
  .hero-mockup {
    max-width: 560px;
  }
}

@media (min-width: 1280px) {
  .hero-mockup {
    max-width: 600px;
  }
}

.hero-mockup-glow {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 40%;
  z-index: -1;
  filter: blur(48px);
  background: radial-gradient(ellipse, rgba(0, 220, 255, 0.5) 0%, transparent 70%);
  pointer-events: none;
}

.hero-mockup svg {
  width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 1023px) {
  .hero-text {
    align-items: center;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
  }

  .hero-text .hero-title,
  .hero-text .hero-desc {
    text-align: center;
  }

  .hero-tags,
  .hero-cta {
    justify-content: center;
  }

  .hero-badge {
    align-self: center;
  }
}

/* ── 场景 ── */
.section-scenarios {
  background: #fff;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .scenario-grid {
    gap: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .scenario-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

.scenario-card {
  padding: 0.75rem;
  border-radius: 0.75rem;
  border: 1px solid var(--slate-100);
  background: #fff;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.3s, border-color 0.3s;
}

@media (min-width: 640px) {
  .scenario-card {
    padding: 1.5rem;
    border-radius: 1rem;
  }
}

@media (min-width: 1024px) {
  .scenario-card {
    padding: 2rem;
  }
}

.scenario-card:hover {
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  border-color: #dbeafe;
}

.scenario-card-head {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

@media (min-width: 640px) {
  .scenario-card-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    margin-bottom: 1.5rem;
  }
}

.scenario-icon {
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

@media (min-width: 640px) {
  .scenario-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 0.75rem;
    margin-bottom: 0.75rem;
  }
}

.scenario-icon svg {
  width: 1rem;
  height: 1rem;
}

@media (min-width: 640px) {
  .scenario-icon svg {
    width: 1.75rem;
    height: 1.75rem;
  }
}

.scenario-icon.blue {
  background: #eff6ff;
  color: #2563eb;
}

.scenario-icon.emerald {
  background: #ecfdf5;
  color: #059669;
}

.scenario-icon.purple {
  background: #faf5ff;
  color: #9333ea;
}

.scenario-icon.orange {
  background: #fff7ed;
  color: #ea580c;
}

.scenario-icon.indigo {
  background: #eef2ff;
  color: #4f46e5;
}

.scenario-card h3 {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--slate-900);
  line-height: 1.25;
}

@media (min-width: 640px) {
  .scenario-card h3 {
    font-size: 1.125rem;
  }
}

@media (min-width: 1024px) {
  .scenario-card h3 {
    font-size: 1.25rem;
  }
}

.scenario-card p {
  font-size: 0.625rem;
  color: var(--slate-500);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (min-width: 640px) {
  .scenario-card p {
    font-size: 0.875rem;
    color: var(--slate-600);
    -webkit-line-clamp: unset;
    display: block;
  }
}

.scenario-more {
  grid-column: span 2;
  padding: 0.75rem;
  border-radius: 0.75rem;
  background: linear-gradient(to bottom right, #2563eb, #1e40af);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  min-height: 120px;
}

@media (min-width: 1024px) {
  .scenario-more {
    grid-column: span 1;
    padding: 2rem;
    border-radius: 1rem;
  }
}

.scenario-more h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

@media (min-width: 640px) {
  .scenario-more h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
  }
}

.scenario-more p {
  font-size: 0.625rem;
  color: #bfdbfe;
  margin-bottom: 0.75rem;
}

@media (min-width: 640px) {
  .scenario-more p {
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
  }
}

.btn-scenario {
  padding: 0.375rem 1rem;
  background: #fff;
  color: #2563eb;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 0.375rem;
  transition: background 0.2s;
}

@media (min-width: 640px) {
  .btn-scenario {
    padding: 0.5rem 1.5rem;
    font-size: 0.875rem;
    border-radius: 0.5rem;
  }
}

.btn-scenario:hover {
  background: #eff6ff;
}

/* ── 解决方案 ── */
.section-solutions {
  background: var(--slate-900);
  color: #fff;
}

.section-solutions .section-title {
  color: #fff;
}

.section-solutions .section-desc {
  color: var(--slate-400);
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .solution-grid {
    gap: 1.5rem;
  }
}

.solution-card {
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--slate-700);
  border-radius: 0.75rem;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: background 0.2s;
}

@media (min-width: 640px) {
  .solution-card {
    padding: 1.5rem;
    border-radius: 1rem;
  }
}

@media (min-width: 1024px) {
  .solution-card {
    padding: 2rem;
  }
}

.solution-card:hover {
  background: var(--slate-800);
}

.solution-card-top {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

@media (min-width: 1280px) {
  .solution-card-top {
    flex-direction: row;
    gap: 1.25rem;
  }
}

.solution-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

@media (min-width: 640px) {
  .solution-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 0.75rem;
  }
}

.solution-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

@media (min-width: 640px) {
  .solution-icon svg {
    width: 1.75rem;
    height: 1.75rem;
  }
}

.solution-card h3 {
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

@media (min-width: 640px) {
  .solution-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
  }
}

@media (min-width: 1024px) {
  .solution-card h3 {
    font-size: 1.5rem;
  }
}

.solution-tag {
  display: none;
  padding: 0.125rem 0.75rem;
  border-radius: 9999px;
  background: var(--slate-700);
  color: var(--slate-300);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

@media (min-width: 640px) {
  .solution-tag {
    display: inline-block;
  }
}

.solution-card > .solution-card-top p {
  font-size: 0.75rem;
  color: var(--slate-400);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

@media (min-width: 640px) {
  .solution-card > .solution-card-top p {
    font-size: 0.875rem;
    -webkit-line-clamp: unset;
    display: block;
    margin-bottom: 1.5rem;
  }
}

.solution-tech {
  display: none;
  background: rgba(15, 23, 42, 0.5);
  padding: 1rem;
  border-radius: 0.5rem;
  border: 1px solid var(--slate-800);
  margin-top: auto;
}

@media (min-width: 768px) {
  .solution-tech {
    display: block;
  }
}

.solution-tech p {
  font-size: 0.875rem;
  color: var(--slate-500);
  font-family: ui-monospace, monospace;
  line-height: 1.4;
}

.solution-tech .label {
  color: #34d399;
}

/* ── 功能 Tab ── */
.section-features {
  background: var(--slate-50);
  border-top: 1px solid var(--slate-200);
}

.feature-tabs {
  background: #fff;
  border-radius: 1rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--slate-100);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

@media (min-width: 1024px) {
  .feature-tabs {
    flex-direction: row;
    gap: 0;
  }
}

.feature-tabs-nav-wrap {
  width: 100%;
  background: var(--slate-50);
  border-bottom: 1px solid var(--slate-100);
  padding: 0.5rem;
}

@media (min-width: 1024px) {
  .feature-tabs-nav-wrap {
    width: 33.333%;
    border-bottom: none;
    border-right: 1px solid var(--slate-100);
    padding: 1rem;
  }
}

.feature-tabs-nav {
  display: flex;
  flex-direction: row;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding-bottom: 0.5rem;
}

.feature-tabs-nav::-webkit-scrollbar {
  display: none;
}

@media (min-width: 1024px) {
  .feature-tabs-nav {
    flex-direction: column;
    overflow-x: visible;
    padding-bottom: 0;
  }
}

.feature-tab-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
  padding: 0.625rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--slate-600);
  border: 1px solid var(--slate-200);
  background: #fff;
  white-space: nowrap;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
}

@media (min-width: 640px) {
  .feature-tab-btn {
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 0.75rem;
  }
}

@media (min-width: 1024px) {
  .feature-tab-btn {
    width: 100%;
    border: none;
    background: transparent;
  }
}

.feature-tab-btn svg {
  width: 1rem;
  height: 1rem;
  color: var(--slate-400);
  flex-shrink: 0;
}

@media (min-width: 640px) {
  .feature-tab-btn svg {
    width: 1.25rem;
    height: 1.25rem;
  }
}

.feature-tab-btn.is-active {
  background: #2563eb;
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.feature-tab-btn.is-active svg {
  color: #fff;
}

.feature-tabs-content {
  width: 100%;
  padding: 1.25rem;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

@media (min-width: 640px) {
  .feature-tabs-content {
    padding: 2rem;
    min-height: 400px;
  }
}

@media (min-width: 1024px) {
  .feature-tabs-content {
    width: 66.666%;
    padding: 3rem;
  }
}

.feature-tab-panel {
  display: none;
  animation: fadeIn 0.4s ease;
}

.feature-tab-panel.is-active {
  display: block;
}

.feature-panel-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .feature-panel-head {
    gap: 1rem;
    margin-bottom: 2rem;
  }
}

.feature-panel-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  background: #dbeafe;
  color: #2563eb;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

@media (min-width: 640px) {
  .feature-panel-icon {
    width: 4rem;
    height: 4rem;
    border-radius: 1rem;
  }
}

.feature-panel-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

@media (min-width: 640px) {
  .feature-panel-icon svg {
    width: 2rem;
    height: 2rem;
  }
}

.feature-panel-head h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--slate-900);
}

@media (min-width: 640px) {
  .feature-panel-head h3 {
    font-size: 1.5rem;
  }
}

@media (min-width: 768px) {
  .feature-panel-head h3 {
    font-size: 1.875rem;
  }
}

.feature-points h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--slate-900);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

@media (min-width: 640px) {
  .feature-points h4 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
  }
}

.feature-points h4::before {
  content: "";
  width: 6px;
  height: 1.25rem;
  background: #2563eb;
  border-radius: 9999px;
  flex-shrink: 0;
}

.feature-points-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem 1rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .feature-points-grid {
    grid-template-columns: repeat(2, 1fr);
    margin-bottom: 2.5rem;
  }
}

.feature-point {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--slate-600);
}

@media (min-width: 640px) {
  .feature-point {
    font-size: 1rem;
  }
}

.feature-point::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #60a5fa;
  margin-top: 0.4rem;
  flex-shrink: 0;
}

.feature-effect {
  background: linear-gradient(to bottom right, var(--slate-50), rgba(239, 246, 255, 0.3));
  padding: 1rem;
  border-radius: 0.75rem;
  border: 1px solid rgba(219, 234, 254, 0.5);
}

@media (min-width: 640px) {
  .feature-effect {
    padding: 1.5rem;
  }
}

.feature-effect h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: #1e3a8a;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

@media (min-width: 640px) {
  .feature-effect h4 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
  }
}

.feature-effect h4 svg {
  color: #f97316;
  flex-shrink: 0;
}

.feature-effect p {
  font-size: 0.75rem;
  color: var(--slate-700);
  line-height: 1.6;
}

@media (min-width: 640px) {
  .feature-effect p {
    font-size: 1rem;
  }
}

/* ── 架构 ── */
.section-architecture {
  background: #fff;
}

.arch-layers {
  max-width: 64rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.arch-layer {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 768px) {
  .arch-layer {
    flex-direction: row;
    align-items: stretch;
  }
}

.arch-label {
  background: var(--slate-800);
  color: #fff;
  border-radius: 0.5rem;
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  letter-spacing: 0.1em;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .arch-label {
    width: 8rem;
  }
}

.arch-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .arch-content {
    flex-direction: row;
  }
}

.arch-full {
  flex: 1;
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: 0.5rem;
  padding: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: center;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.arch-full span {
  font-size: 0.875rem;
  color: var(--slate-600);
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.arch-full span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #60a5fa;
}

.arch-box {
  flex: 1;
  border-radius: 0.5rem;
  padding: 1.25rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.arch-box.blue {
  background: rgba(239, 246, 255, 0.5);
  border: 1px solid #dbeafe;
}

.arch-box.emerald {
  background: rgba(236, 253, 245, 0.5);
  border: 1px solid #d1fae5;
}

.arch-box h4 {
  font-weight: 600;
  margin-bottom: 0.75rem;
  font-size: 0.9375rem;
}

.arch-box.blue h4 {
  color: #1e3a8a;
}

.arch-box.emerald h4 {
  color: #064e3b;
}

.arch-box ul {
  list-style: none;
}

.arch-box li {
  font-size: 0.875rem;
  color: var(--slate-600);
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.375rem;
}

.arch-box.blue li::before {
  content: "•";
  color: #3b82f6;
}

.arch-box.emerald li::before {
  content: "•";
  color: #10b981;
}

/* ── 服务表 ── */
.section-service {
  background: var(--slate-50);
  border-top: 1px solid var(--slate-200);
  border-bottom: 1px solid var(--slate-200);
}

.service-dual {
  display: none;
  flex-direction: row;
  gap: 2rem;
  margin-bottom: 5rem;
  align-items: stretch;
}

@media (min-width: 768px) {
  .service-dual {
    display: flex;
  }
}

.service-card-wrap {
  flex: 1;
  background: var(--card);
  border-radius: 1.5rem;
  border: 1px solid var(--slate-100);
  box-shadow: var(--shadow-custom);
  padding: 2.5rem 2rem;
}

.service-block-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.service-num {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  font-weight: 700;
  flex-shrink: 0;
}

.service-num.blue {
  background: #dbeafe;
  color: #2563eb;
}

.service-num.emerald {
  background: #d1fae5;
  color: #059669;
}

.service-block-title h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--slate-900);
}

.service-items {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.service-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.25rem 1rem;
  border-radius: 1rem;
  background: rgba(241, 244, 251, 0.4);
  border: 1px solid var(--slate-100);
  transition: box-shadow 0.2s;
}

.service-item:hover {
  box-shadow: var(--shadow-custom);
}

.service-item svg {
  margin-bottom: 0.75rem;
}

.service-item strong {
  display: block;
  color: var(--slate-900);
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.service-item span {
  font-size: 0.875rem;
  color: var(--muted-fg);
  line-height: 1.6;
}

.service-mobile {
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .service-mobile {
    display: none;
  }
}

.service-tab-bar {
  display: flex;
  border-radius: 0.75rem;
  overflow: hidden;
  border: 1px solid var(--slate-200);
  margin-bottom: 1.5rem;
}

.service-tab-btn {
  flex: 1;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--slate-600);
  background: var(--card);
  transition: background 0.2s, color 0.2s;
}

.service-tab-btn + .service-tab-btn {
  border-left: 1px solid var(--slate-200);
}

.service-tab-btn.is-active[data-service-tab="operation"] {
  background: #2563eb;
  color: #fff;
}

.service-tab-btn.is-active[data-service-tab="maintenance"] {
  background: #059669;
  color: #fff;
}

.service-tab-panel {
  display: none;
  background: var(--card);
  border-radius: 1rem;
  padding: 1.5rem;
  border: 1px solid var(--slate-100);
  box-shadow: var(--shadow-custom);
}

.service-tab-panel.is-active {
  display: block;
}

.compare-table-wrap {
  background: var(--card);
  border-radius: 1rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--slate-200);
  overflow: hidden;
}

.compare-table-head {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--slate-200);
  background: var(--slate-50);
  text-align: center;
}

.compare-table-head h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--slate-900);
}

@media (min-width: 768px) {
  .compare-table-head h3 {
    font-size: 1.5rem;
  }
}

.compare-scroll-hint {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.25rem;
  padding: 0.375rem 0.75rem;
  background: rgba(248, 250, 252, 0.8);
  border-bottom: 1px solid var(--slate-100);
  font-size: 0.75rem;
  color: var(--muted-fg);
}

@media (min-width: 768px) {
  .compare-scroll-hint {
    display: none;
  }
}

.compare-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.compare-table {
  border-collapse: collapse;
  min-width: 600px;
  width: 100%;
  font-size: 0.75rem;
}

@media (min-width: 768px) {
  .compare-table {
    font-size: 1rem;
  }
}

.compare-table th,
.compare-table td {
  padding: 0.5rem;
  border-bottom: 1px solid var(--slate-100);
  vertical-align: top;
  text-align: center;
}

@media (min-width: 768px) {
  .compare-table th,
  .compare-table td {
    padding: 1rem;
  }
}

.compare-table thead tr {
  background: var(--slate-100);
}

.compare-table th {
  font-weight: 600;
  color: var(--slate-700);
  white-space: nowrap;
}

.compare-table .col-us {
  background: rgba(239, 246, 255, 0.5);
}

.compare-table th.col-us {
  color: #1d4ed8;
  font-weight: 700;
}

.compare-table td.col-us {
  background: rgba(239, 246, 255, 0.2);
  color: #1e40af;
  font-weight: 500;
}

.compare-table td.col-us .highlight,
.compare-table td.col-us .highlight strong {
  color: inherit;
}

.compare-table tbody tr:hover {
  background: var(--slate-50);
}

.compare-table td:first-child {
  font-weight: 500;
  color: var(--slate-900);
  white-space: nowrap;
}

.compare-table .highlight {
  color: #1d4ed8;
  font-weight: 500;
}

.compare-table .highlight strong {
  font-weight: 600;
}

.text-us {
  color: #1e40af;
  font-weight: 700;
}

.text-muted-cell {
  color: var(--slate-600);
}

@media (max-width: 767px) {
  .compare-table-head {
    padding: 1rem;
  }

  .compare-table {
    table-layout: fixed;
    font-size: 0.75rem;
  }

  .compare-table thead th {
    font-size: 0.875rem;
    padding: 0.5rem 0.375rem;
    line-height: 1.35;
  }

  .compare-table tbody td {
    font-size: 0.75rem;
    padding: 0.5rem 0.375rem;
    line-height: 1.45;
  }

  .compare-table th:nth-child(1),
  .compare-table td:nth-child(1) {
    width: 13%;
  }

  .compare-table th:nth-child(2),
  .compare-table td:nth-child(2) {
    width: 29%;
  }

  .compare-table th:nth-child(3),
  .compare-table td:nth-child(3) {
    width: 29%;
  }

  .compare-table th:nth-child(4),
  .compare-table td:nth-child(4) {
    width: 29%;
  }

  .compare-table th.col-us {
    background: rgba(239, 246, 255, 0.5);
    color: #1d4ed8;
    font-weight: 700;
    white-space: normal;
  }

  .compare-table td.col-us {
    background: rgba(239, 246, 255, 0.2);
  }

  .compare-table td.col-us .highlight,
  .compare-table td.col-us .highlight strong {
    color: #1e40af;
  }

  .compare-table tbody td:not(:first-child) {
    max-width: 0;
  }

  .compare-table tbody td:not(:first-child) > span {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .compare-table {
    table-layout: fixed;
    font-size: 0.875rem;
  }

  .compare-table th,
  .compare-table td {
    vertical-align: middle;
    padding: 0.75rem 0.625rem;
    line-height: 1.5;
  }

  .compare-table th.col-us {
    white-space: normal;
    line-height: 1.4;
  }

  .compare-table th:nth-child(1),
  .compare-table td:nth-child(1) {
    width: 14%;
  }

  .compare-table th:nth-child(2),
  .compare-table td:nth-child(2) {
    width: 28%;
  }

  .compare-table th:nth-child(3),
  .compare-table td:nth-child(3) {
    width: 29%;
  }

  .compare-table th:nth-child(4),
  .compare-table td:nth-child(4) {
    width: 29%;
  }

  .compare-table td.col-us strong {
    font-weight: 600;
    color: inherit;
  }
}

.icon-x {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  vertical-align: middle;
}

/* ── CTA ── */
.section-cta {
  background: var(--slate-900);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.section-cta .cta-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.1;
  background-image: radial-gradient(#4b5563 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.cta-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .cta-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
  }
}

.cta-text h2 {
  font-size: 1.375rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.875rem;
}

@media (min-width: 640px) {
  .cta-text h2 {
    font-size: 1.875rem;
    margin-bottom: 1.25rem;
  }
}

@media (min-width: 768px) {
  .cta-text h2 {
    font-size: 2.25rem;
    margin-bottom: 1.5rem;
  }
}

.cta-text > p {
  color: var(--slate-400);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 1.25rem;
  max-width: 36rem;
}

@media (min-width: 640px) {
  .cta-text > p {
    font-size: 1rem;
    margin-bottom: 1.5rem;
  }
}

@media (min-width: 768px) {
  .cta-text > p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
  }
}

.cta-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.625rem;
  margin-bottom: 1.25rem;
}

@media (min-width: 640px) {
  .cta-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
  }
}

@media (min-width: 768px) {
  .cta-cards {
    margin-bottom: 2rem;
  }
}

.cta-card {
  background: rgba(30, 41, 59, 0.5);
  padding: 0.75rem;
  border-radius: 0.5rem;
  border: 1px solid var(--slate-700);
}

@media (min-width: 640px) {
  .cta-card {
    padding: 1rem;
  }
}

.cta-card .label {
  display: block;
  font-size: 0.75rem;
  margin-bottom: 0.125rem;
}

@media (min-width: 640px) {
  .cta-card .label {
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
  }
}

.cta-card .label.blue {
  color: #60a5fa;
}

.cta-card .label.emerald {
  color: #34d399;
}

.cta-card .label.purple {
  color: #c084fc;
}

.cta-card .label.orange {
  color: #fb923c;
}

.cta-card strong {
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.45;
}

@media (min-width: 640px) {
  .cta-card strong {
    font-size: 1rem;
    font-weight: 700;
  }
}

.cta-actions {
  width: 100%;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

@media (min-width: 640px) {
  .cta-actions {
    gap: 0.875rem;
  }
}

@media (min-width: 768px) {
  .cta-actions {
    width: auto;
    gap: 1rem;
  }
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.25rem;
  background: #2563eb;
  color: #fff;
  border-radius: 0.75rem;
  font-size: 0.9375rem;
  font-weight: 700;
  box-shadow: 0 20px 25px -5px rgba(37, 99, 235, 0.3);
  transition: background 0.2s;
}

@media (min-width: 640px) {
  .btn-cta {
    gap: 0.625rem;
    padding: 1rem 2rem;
    font-size: 1rem;
  }
}

@media (min-width: 768px) {
  .btn-cta {
    gap: 0.75rem;
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
  }
}

.btn-cta svg {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .btn-cta svg {
    width: 1.125rem;
    height: 1.125rem;
  }
}

.btn-cta:hover {
  background: #3b82f6;
}

.cta-actions .hint {
  font-size: 0.75rem;
  color: var(--slate-500);
  text-align: center;
  line-height: 1.4;
}

@media (min-width: 640px) {
  .cta-actions .hint {
    font-size: 0.875rem;
  }
}

/* ── Footer ── */
.charge-footer {
  width: 100%;
  background: var(--slate-950);
  color: var(--slate-400);
  padding: 2rem 1rem;
  text-align: center;
  font-size: 0.875rem;
}

.charge-footer .footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

/* ── 动画 ── */
@keyframes heroFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-14px);
  }
}

@keyframes glowPulse {
  0%,
  100% {
    opacity: 0.2;
    transform: scale(1);
  }
  50% {
    opacity: 0.45;
    transform: scale(1.1);
  }
}

@keyframes cornerPulse {
  0%,
  100% {
    opacity: 0.4;
  }
  50% {
    opacity: 1;
  }
}

@keyframes badgeGlow {
  0%,
  100% {
    box-shadow: 0 0 8px 2px rgba(56, 189, 248, 0.25);
  }
  50% {
    box-shadow: 0 0 18px 6px rgba(56, 189, 248, 0.55);
  }
}

@keyframes btnPulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(31, 78, 185, 0.5);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(31, 78, 185, 0);
  }
}

@keyframes lineGlow {
  0%,
  100% {
    opacity: 0.08;
  }
  50% {
    opacity: 0.22;
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}