/* ============================================================
   兔子管家 · 官网营销页样式（1:1 对齐 ref-index.html）
   ============================================================ */

.mk-site {
  --mk-bg: #ffffff;
  --mk-bg-soft: #f4f6fb;
  --mk-ink: #0b1220;
  --mk-ink-2: #46536b;
  --mk-ink-3: #8b98ad;
  --mk-line: #e6edf5;
  --mk-cyan: #06b6d4;
  --mk-blue: #3b82f6;
  --mk-violet: #8b5cf6;
  --mk-green: #10b981;
  --mk-grad: linear-gradient(90deg, #06b6d4 0%, #3b82f6 50%, #8b5cf6 100%);
  --mk-grad-soft: linear-gradient(
    135deg,
    rgba(6, 182, 212, 0.08),
    rgba(59, 130, 246, 0.08) 50%,
    rgba(139, 92, 246, 0.08)
  );
  --mk-shadow-sm: 0 2px 10px rgba(11, 18, 32, 0.06);
  --mk-shadow-md: 0 10px 30px rgba(11, 18, 32, 0.08);
  --mk-shadow-lg: 0 24px 60px rgba(37, 99, 235, 0.16);
  --mk-r-sm: 10px;
  --mk-r-md: 16px;
  --mk-r-lg: 24px;
  --mk-mono: ui-monospace, 'Cascadia Code', 'JetBrains Mono', Consolas,
    'Courier New', monospace;

  background: var(--mk-bg);
  color: var(--mk-ink);
  line-height: 1.7;
  overflow-x: hidden;
}

.mk-site a {
  color: inherit;
  text-decoration: none;
}
.mk-site svg {
  display: block;
  flex-shrink: 0;
}
.mk-site .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.mk-site section {
  scroll-margin-top: 84px;
}

/* ============ 导航栏 ============ */
.mk-site .nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 66px;
  z-index: 999;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: all 0.3s ease;
}
.mk-site .nav.scrolled {
  background: rgba(255, 255, 255, 0.9);
  border-bottom-color: var(--mk-line);
  box-shadow: var(--mk-shadow-sm);
}
.mk-site .nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.mk-site .nav__brand {
  display: flex;
  align-items: center;
  gap: 11px;
  font-weight: 700;
  font-size: 17.5px;
  letter-spacing: -0.01em;
}
.mk-site .nav__logo {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: var(--mk-grad);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(59, 130, 246, 0.35);
  position: relative;
}
.mk-site .nav__logo::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 11px;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.5), transparent 45%);
}
.mk-site .nav__logo svg {
  width: 20px;
  height: 20px;
  fill: #fff;
  position: relative;
  z-index: 1;
}
.mk-site .nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.mk-site .nav__link {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--mk-ink-2);
  transition: all 0.22s ease;
}
.mk-site .nav__link:hover {
  color: var(--mk-blue);
  background: rgba(59, 130, 246, 0.08);
}
.mk-site .nav__link--accent {
  color: #7c3aed;
}
.mk-site .nav__link--accent:hover {
  color: #7c3aed;
  background: rgba(139, 92, 246, 0.1);
}
.mk-site .nav__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.mk-site .nav__btn {
  padding: 8px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.22s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.mk-site .nav__btn--ghost {
  color: var(--mk-ink-2);
  border: 1px solid var(--mk-line);
}
.mk-site .nav__btn--ghost:hover {
  color: var(--mk-blue);
  border-color: var(--mk-blue);
  background: rgba(59, 130, 246, 0.05);
}
.mk-site .nav__btn--solid {
  color: #fff;
  background: var(--mk-grad);
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.35);
}
.mk-site .nav__btn--solid:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.45);
}
.mk-site .nav__burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 10px;
  color: var(--mk-ink);
  transition: background 0.2s;
}
.mk-site .nav__burger:hover {
  background: var(--mk-bg-soft);
}
.mk-site .nav__burger svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}
.mk-site .nav__mobile {
  position: fixed;
  top: 66px;
  left: 0;
  width: 100%;
  z-index: 998;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--mk-line);
  box-shadow: var(--mk-shadow-md);
  padding: 12px 20px 18px;
  display: none;
  flex-direction: column;
  gap: 4px;
}
.mk-site .nav__mobile.open {
  display: flex;
}
.mk-site .nav__mobile .nav__link {
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.mk-site .nav__mobile .nav__link svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  opacity: 0.75;
}

/* ============ Hero ============ */
.mk-site .hero {
  position: relative;
  overflow: hidden;
  padding: 150px 0 96px;
  background: radial-gradient(600px 300px at 85% -60px, rgba(6, 182, 212, 0.1), transparent 70%),
    radial-gradient(700px 380px at 8% 40px, rgba(139, 92, 246, 0.1), transparent 70%),
    var(--mk-bg);
}
.mk-site .hero__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(15, 23, 42, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 23, 42, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(ellipse 95% 85% at 50% 0%, #000 30%, transparent 100%);
  mask-image: radial-gradient(ellipse 95% 85% at 50% 0%, #000 30%, transparent 100%);
}
.mk-site .hero__particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.mk-site .hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}
.mk-site .hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(59, 130, 246, 0.25);
  box-shadow: 0 2px 12px rgba(59, 130, 246, 0.12);
  font-size: 13px;
  font-weight: 600;
  color: #1d4ed8;
}
.mk-site .hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mk-cyan);
  box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.5);
  animation: mk-ping 2s ease-out infinite;
}
@keyframes mk-ping {
  0% {
    box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.45);
  }
  70% {
    box-shadow: 0 0 0 9px rgba(6, 182, 212, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(6, 182, 212, 0);
  }
}
.mk-site .hero__title {
  font-size: 50px;
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.025em;
  margin-bottom: 22px;
}
.mk-site .hero__title .grad {
  background: var(--mk-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.mk-site .hero__desc {
  font-size: 16.5px;
  color: var(--mk-ink-2);
  max-width: 520px;
  margin-bottom: 34px;
}
.mk-site .hero__btns {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 26px;
}
.mk-site .btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 14px 30px;
  border-radius: 14px;
  border: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 650;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}
.mk-site .btn svg {
  width: 19px;
  height: 19px;
  fill: currentColor;
}
.mk-site .btn--primary {
  color: #fff;
  background: var(--mk-grad);
  background-size: 150% 100%;
  box-shadow: 0 10px 26px rgba(59, 130, 246, 0.38);
}
.mk-site .btn--primary:hover {
  transform: translateY(-2px);
  background-position: 100% 0;
  box-shadow: 0 16px 34px rgba(59, 130, 246, 0.48);
}
.mk-site .btn--ghost {
  color: var(--mk-ink);
  background: rgba(255, 255, 255, 0.85);
  border: 1.5px solid var(--mk-line);
}
.mk-site .btn--ghost:hover {
  transform: translateY(-2px);
  border-color: var(--mk-blue);
  color: var(--mk-blue);
  box-shadow: 0 10px 24px rgba(59, 130, 246, 0.14);
}
.mk-site .hero__trust {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13.5px;
  color: var(--mk-ink-3);
}
.mk-site .hero__trust svg {
  width: 15px;
  height: 15px;
  fill: var(--mk-green);
}
.mk-site .hero__trust b {
  color: var(--mk-ink-2);
  font-weight: 600;
}

/* 终端卡片 */
.mk-site .hero__visual {
  position: relative;
}
.mk-site .term {
  position: relative;
  max-width: 520px;
  margin: 0 auto;
  background: #0d1526;
  border-radius: var(--mk-r-lg);
  box-shadow: var(--mk-shadow-lg), 0 0 0 1px rgba(148, 163, 184, 0.14);
  overflow: hidden;
  transform: perspective(1200px) rotateY(-4deg) rotateX(2deg);
  transition: transform 0.5s ease;
}
.mk-site .term:hover {
  transform: perspective(1200px) rotateY(0) rotateX(0);
}
.mk-site .term::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.07), transparent 40%);
}
.mk-site .term__scan {
  position: absolute;
  left: 0;
  right: 0;
  height: 90px;
  top: -90px;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(56, 189, 248, 0.09), transparent);
  animation: mk-scan 5.5s linear infinite;
}
@keyframes mk-scan {
  to {
    top: 110%;
  }
}
.mk-site .term__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(148, 163, 184, 0.14);
}
.mk-site .term__dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.mk-site .term__dot--r {
  background: #f87171;
}
.mk-site .term__dot--y {
  background: #fbbf24;
}
.mk-site .term__dot--g {
  background: #34d399;
}
.mk-site .term__title {
  margin-left: 10px;
  font-family: var(--mk-mono);
  font-size: 12px;
  color: #64748b;
  letter-spacing: 0.04em;
}
.mk-site .term__body {
  padding: 22px 22px 26px;
  min-height: 238px;
  font-family: var(--mk-mono);
  font-size: 13.5px;
  line-height: 2.05;
}
.mk-site .tl {
  white-space: pre-wrap;
  word-break: break-all;
}
.mk-site .tl.cmd {
  color: #7dd3fc;
}
.mk-site .tl.dim {
  color: #94a3b8;
}
.mk-site .tl.ok {
  color: #34d399;
}
.mk-site .tl.json {
  color: #a5b4fc;
}
.mk-site .term__cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: #7dd3fc;
  vertical-align: -2px;
  animation: mk-blink 1s steps(1) infinite;
}
@keyframes mk-blink {
  50% {
    opacity: 0;
  }
}

/* 悬浮徽章 */
.mk-site .chip {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 11px 18px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border: 1px solid var(--mk-line);
  box-shadow: var(--mk-shadow-md);
  font-size: 13.5px;
  font-weight: 650;
  color: var(--mk-ink);
  animation: mk-float 6s ease-in-out infinite;
}
.mk-site .chip svg {
  width: 19px;
  height: 19px;
}
.mk-site .chip--1 {
  top: -22px;
  right: 2%;
  animation-delay: 0.2s;
}
.mk-site .chip--1 svg {
  fill: var(--mk-green);
}
.mk-site .chip--2 {
  bottom: -20px;
  left: 0;
  animation-delay: 1.4s;
}
.mk-site .chip--2 svg {
  fill: var(--mk-blue);
}
.mk-site .chip--3 {
  top: 42%;
  right: -26px;
  animation-delay: 2.6s;
}
.mk-site .chip--3 svg {
  fill: var(--mk-violet);
}
@keyframes mk-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

/* ============ 数据带 ============ */
.mk-site .stats {
  position: relative;
  border-top: 1px solid var(--mk-line);
  border-bottom: 1px solid var(--mk-line);
  background: var(--mk-bg);
}
.mk-site .stats__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 44px 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.mk-site .stat {
  text-align: center;
  position: relative;
}
.mk-site .stat + .stat::before {
  content: '';
  position: absolute;
  left: -12px;
  top: 12%;
  bottom: 12%;
  width: 1px;
  background: var(--mk-line);
}
.mk-site .stat__num {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--mk-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.mk-site .stat__num .unit {
  font-size: 17px;
  font-weight: 700;
  -webkit-text-fill-color: var(--mk-ink-3);
}
.mk-site .stat__label {
  font-size: 13.5px;
  color: var(--mk-ink-3);
  margin-top: 4px;
  font-weight: 500;
}

/* ============ 通用区块 ============ */
.mk-site .sec {
  padding: 104px 0;
  position: relative;
}
.mk-site .sec--soft {
  background: var(--mk-bg-soft);
}
.mk-site .sec__head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}
.mk-site .sec__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 18px;
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.04em;
  color: #1d4ed8;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
}
.mk-site .sec__tag::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mk-blue);
}
.mk-site .sec__title {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.mk-site .sec__desc {
  color: var(--mk-ink-2);
  font-size: 15.5px;
}

/* 功能卡片 */
.mk-site .feat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.mk-site .feat {
  position: relative;
  background: #fff;
  border: 1px solid var(--mk-line);
  border-radius: var(--mk-r-md);
  padding: 34px 28px;
  transition: all 0.3s ease;
  overflow: hidden;
}
.mk-site .feat::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--mk-grad);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.mk-site .feat:hover {
  transform: translateY(-6px);
  box-shadow: var(--mk-shadow-lg);
  border-color: rgba(59, 130, 246, 0.3);
}
.mk-site .feat:hover::before {
  opacity: 1;
}
.mk-site .feat__icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  margin-bottom: 20px;
  background: var(--mk-grad-soft);
  border: 1px solid rgba(59, 130, 246, 0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}
.mk-site .feat:hover .feat__icon {
  transform: scale(1.08) rotate(-3deg);
}
.mk-site .feat__icon svg {
  width: 26px;
  height: 26px;
  fill: var(--mk-blue);
}
.mk-site .feat__title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.mk-site .feat__desc {
  font-size: 14.5px;
  color: var(--mk-ink-2);
}

/* 步骤 */
.mk-site .step-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  position: relative;
  counter-reset: step;
}
.mk-site .step-grid::before {
  content: '';
  position: absolute;
  top: 34px;
  left: 9%;
  right: 9%;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(59, 130, 246, 0.35) 12%,
    rgba(139, 92, 246, 0.35) 88%,
    transparent
  );
}
.mk-site .step {
  position: relative;
  background: #fff;
  border: 1px solid var(--mk-line);
  border-radius: var(--mk-r-md);
  padding: 0 22px 28px;
  text-align: center;
  transition: all 0.3s ease;
}
.mk-site .step:hover {
  transform: translateY(-6px);
  box-shadow: var(--mk-shadow-md);
  border-color: rgba(59, 130, 246, 0.3);
}
.mk-site .step__num {
  width: 68px;
  height: 68px;
  margin: 0 auto 18px;
  position: relative;
  z-index: 1;
  border-radius: 20px;
  background: #fff;
  border: 1px solid var(--mk-line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mk-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--mk-blue);
  box-shadow: var(--mk-shadow-sm);
  transition: all 0.3s ease;
}
.mk-site .step:hover .step__num {
  background: var(--mk-grad);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 10px 24px rgba(59, 130, 246, 0.4);
}
.mk-site .step__title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.mk-site .step__desc {
  font-size: 14px;
  color: var(--mk-ink-2);
}

/* FAQ */
.mk-site .faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.mk-site .faq {
  background: #fff;
  border: 1px solid var(--mk-line);
  border-radius: var(--mk-r-md);
  overflow: hidden;
  transition: all 0.25s ease;
}
.mk-site .faq:hover {
  border-color: rgba(59, 130, 246, 0.35);
}
.mk-site .faq.open {
  border-color: var(--mk-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}
.mk-site .faq__q {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  font-family: inherit;
  padding: 19px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  user-select: none;
  font-weight: 650;
  font-size: 15.5px;
  color: var(--mk-ink);
  transition: background 0.2s;
}
.mk-site .faq__q:hover {
  background: var(--mk-bg-soft);
}
.mk-site .faq__q svg {
  width: 22px;
  height: 22px;
  fill: var(--mk-ink-3);
  transition: transform 0.35s ease, fill 0.25s;
}
.mk-site .faq.open .faq__q svg {
  transform: rotate(180deg);
  fill: var(--mk-blue);
}
.mk-site .faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.mk-site .faq__a-inner {
  padding: 16px 24px 20px;
  margin: 0 24px;
  color: var(--mk-ink-2);
  font-size: 14.5px;
  border-top: 1px dashed var(--mk-line);
  padding-left: 0;
  padding-right: 0;
}

/* CTA */
.mk-site .cta-wrap {
  padding: 0 0 104px;
}
.mk-site .cta {
  position: relative;
  overflow: hidden;
  text-align: center;
  border-radius: var(--mk-r-lg);
  padding: 76px 32px;
  background: linear-gradient(130deg, #0ea5e9 0%, #3b82f6 45%, #8b5cf6 100%);
  box-shadow: 0 30px 70px rgba(59, 130, 246, 0.35);
}
.mk-site .cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.09) 1px, transparent 1px);
  background-size: 40px 40px;
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 85%);
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 85%);
}
.mk-site .cta::after {
  content: '';
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  top: -260px;
  right: -120px;
  background: rgba(255, 255, 255, 0.14);
  filter: blur(30px);
}
.mk-site .cta__title {
  position: relative;
  color: #fff;
  font-size: 33px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.mk-site .cta__desc {
  position: relative;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 34px;
  font-size: 16px;
}
.mk-site .cta__btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: #fff;
  color: #1d4ed8;
  padding: 16px 40px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 16px;
  transition: all 0.28s ease;
  box-shadow: 0 10px 30px rgba(11, 18, 32, 0.25);
}
.mk-site .cta__btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}
.mk-site .cta__btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 18px 44px rgba(11, 18, 32, 0.32);
}

/* Footer */
.mk-site .footer {
  border-top: 1px solid var(--mk-line);
  background: var(--mk-bg-soft);
  padding: 44px 24px;
  text-align: center;
}
.mk-site .footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  margin-bottom: 16px;
}
.mk-site .footer__brand .nav__logo {
  width: 30px;
  height: 30px;
  border-radius: 9px;
}
.mk-site .footer__brand .nav__logo svg {
  width: 16px;
  height: 16px;
}
.mk-site .footer__copy {
  color: var(--mk-ink-3);
  font-size: 14px;
  margin-bottom: 16px;
}
.mk-site .footer__links {
  display: flex;
  justify-content: center;
  gap: 26px;
  flex-wrap: wrap;
}
.mk-site .footer__link {
  color: var(--mk-ink-2);
  font-size: 14px;
  transition: color 0.2s;
}
.mk-site .footer__link:hover {
  color: var(--mk-blue);
}
.mk-site .footer__link--accent {
  color: #7c3aed;
}
.mk-site .footer__link--accent:hover {
  color: #7c3aed;
}

/* 滚动显现 */
.mk-site .reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.mk-site .reveal.in {
  opacity: 1;
  transform: translateY(0);
}
.mk-site .reveal[data-delay='1'] {
  transition-delay: 0.1s;
}
.mk-site .reveal[data-delay='2'] {
  transition-delay: 0.2s;
}
.mk-site .reveal[data-delay='3'] {
  transition-delay: 0.3s;
}

@media (prefers-reduced-motion: reduce) {
  .mk-site .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .mk-site .hero {
    padding: 130px 0 80px;
  }
  .mk-site .hero__inner {
    grid-template-columns: 1fr;
    gap: 72px;
    text-align: center;
  }
  .mk-site .hero__title {
    font-size: 40px;
  }
  .mk-site .hero__desc {
    margin-left: auto;
    margin-right: auto;
  }
  .mk-site .hero__btns,
  .mk-site .hero__trust {
    justify-content: center;
  }
  .mk-site .nav__links {
    display: none;
  }
  .mk-site .nav__burger {
    display: flex;
  }
  .mk-site .feat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .mk-site .step-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 34px 22px;
  }
  .mk-site .step-grid::before {
    display: none;
  }
  .mk-site .stats__inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 34px 24px;
  }
  .mk-site .stat:nth-child(3)::before {
    display: none;
  }
  .mk-site .chip--3 {
    right: 0;
  }
  .mk-site .sec {
    padding: 84px 0;
  }
}
@media (max-width: 640px) {
  .mk-site .hero {
    padding: 118px 0 64px;
  }
  .mk-site .hero__title {
    font-size: 31px;
  }
  .mk-site .hero__desc {
    font-size: 15.5px;
  }
  .mk-site .hero__btns {
    flex-direction: column;
    align-items: stretch;
  }
  .mk-site .btn {
    justify-content: center;
  }
  .mk-site .term {
    transform: none;
    max-width: 100%;
  }
  .mk-site .term__body {
    min-height: 210px;
    font-size: 12px;
    padding: 18px;
  }
  .mk-site .chip {
    padding: 9px 14px;
    font-size: 12.5px;
  }
  .mk-site .chip--1 {
    top: -18px;
    right: 0;
  }
  .mk-site .chip--2 {
    bottom: -16px;
  }
  .mk-site .chip--3 {
    top: auto;
    bottom: 34%;
    right: -8px;
  }
  .mk-site .stats__inner {
    padding: 36px 24px;
  }
  .mk-site .stat__num {
    font-size: 30px;
  }
  .mk-site .sec {
    padding: 68px 0;
  }
  .mk-site .sec__title {
    font-size: 27px;
  }
  .mk-site .sec__head {
    margin-bottom: 42px;
  }
  .mk-site .feat-grid {
    grid-template-columns: 1fr;
  }
  .mk-site .step-grid {
    grid-template-columns: 1fr;
  }
  .mk-site .cta {
    padding: 58px 22px;
    border-radius: 20px;
  }
  .mk-site .cta__title {
    font-size: 25px;
  }
  .mk-site .cta-wrap {
    padding-bottom: 68px;
  }
  .mk-site .container {
    padding: 0 18px;
  }
  .mk-site .nav__actions .nav__btn--ghost {
    display: none;
  }
}

/* ====== Hero 排版与可读性优化（2025-10） ====== */
:root {
  --t-secondary: #475569;
  --t-muted: #64748b;
}
.mk-site .hero__title {
  font-weight: 800;
}
.mk-site .hero__desc,
.mk-site .sec__desc {
  font-weight: 500;
}
@media (min-width: 1440px) {
  .mk-site .hero__inner {
    padding-left: 64px;
  }
  .mk-site .hero__inner .hero__copy {
    max-width: 600px;
  }
}