/* ==========================================================================
   恩贝方EnbeVey 官网样式 · 纯静态 / 零依赖
   浅色主题：白色渐变打底，主色取自软件本体（brand #6366f1 / #4f46e5）
   ========================================================================== */

:root {
  --bg: #ffffff;
  --bg-soft: #f7f8fc;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-solid: #ffffff;
  --border: rgba(17, 24, 39, 0.08);
  --border-strong: rgba(17, 24, 39, 0.14);
  --text: #1f2430;
  --text-soft: #5a6474;
  --text-dim: #8b94a7;
  --brand: #6366f1;
  --brand-deep: #4f46e5;
  --brand-ink: #4338ca;
  --violet: #8b5cf6;
  --violet-ink: #7c3aed;
  --cyan-ink: #0e7490;
  --green-ink: #047857;
  --amber-ink: #b45309;
  --rose-ink: #be123c;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 26px 60px -30px rgba(31, 41, 55, 0.4);
  --shadow-soft: 0 16px 40px -34px rgba(31, 41, 55, 0.5);
  --wrap: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
  background: var(--bg);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Microsoft YaHei", system-ui, -apple-system, "Helvetica Neue", sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

code {
  font-family: "Cascadia Code", Consolas, "SFMono-Regular", monospace;
  font-size: 0.88em;
  padding: 1px 5px;
  border-radius: 6px;
  background: rgba(99, 102, 241, 0.1);
  color: var(--brand-ink);
}

::selection {
  background: rgba(99, 102, 241, 0.24);
}

/* --------------------------------------------------------------------------
   背景层：白色渐变 + 网格 + 柔光斑
   -------------------------------------------------------------------------- */
.bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(1100px 560px at 50% -12%, #e7ecff 0%, rgba(255, 255, 255, 0) 62%),
    radial-gradient(760px 430px at 104% 2%, #f4e9ff 0%, rgba(255, 255, 255, 0) 58%),
    linear-gradient(180deg, #ffffff 0%, #f7f8fc 55%, #ffffff 100%);
}

.bg__grid {
  position: absolute;
  inset: -2px;
  background-image:
    linear-gradient(to right, rgba(17, 24, 39, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(17, 24, 39, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 78%);
}

.bg__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  will-change: transform;
}

.bg__orb--1 {
  width: 620px;
  height: 620px;
  top: -260px;
  left: -120px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.34), transparent 68%);
  animation: orb-a 22s ease-in-out infinite;
}

.bg__orb--2 {
  width: 540px;
  height: 540px;
  top: -180px;
  right: -140px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.28), transparent 68%);
  animation: orb-b 26s ease-in-out infinite;
}

.bg__noise {
  position: absolute;
  inset: 0;
  opacity: 0.02;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)'/%3E%3C/svg%3E");
}

@keyframes orb-a {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(60px, 40px, 0) scale(1.08);
  }
}

@keyframes orb-b {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(-50px, 60px, 0) scale(1.12);
  }
}

/* --------------------------------------------------------------------------
   基础布局
   -------------------------------------------------------------------------- */
.wrap {
  width: min(var(--wrap), calc(100% - 48px));
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

.wrap--narrow {
  width: min(860px, calc(100% - 48px));
}

main,
.nav,
.footer {
  position: relative;
  z-index: 1;
}

.section {
  padding: 104px 0;
}

.section--alt {
  background: linear-gradient(180deg, rgba(247, 248, 252, 0.95), rgba(255, 255, 255, 0));
  border-block: 1px solid rgba(17, 24, 39, 0.055);
}

.section__head {
  max-width: 720px;
  margin-bottom: 52px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-deep);
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid rgba(99, 102, 241, 0.24);
  background: rgba(99, 102, 241, 0.08);
}

.section__title {
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 18px 0 14px;
  font-weight: 700;
  color: var(--text);
}

.section__desc {
  margin: 0;
  color: var(--text-soft);
  font-size: 16px;
}

.grad {
  background: linear-gradient(100deg, #4f46e5 0%, #6366f1 38%, #7c3aed 68%, #0ea5e9 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* --------------------------------------------------------------------------
   按钮
   -------------------------------------------------------------------------- */
.btn {
  --btn-y: 0px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), border-color 0.25s,
    background-color 0.25s;
  transform: translateY(var(--btn-y));
}

.btn small {
  font-weight: 500;
  opacity: 0.8;
  font-size: 12.5px;
}

.btn--sm {
  padding: 8px 16px;
  font-size: 13.5px;
  border-radius: 10px;
}

.btn--lg {
  padding: 14px 26px;
}

.btn--primary {
  color: #fff;
  background: linear-gradient(120deg, var(--brand-deep), var(--brand) 45%, var(--violet));
  box-shadow: 0 14px 30px -14px rgba(79, 70, 229, 0.7);
}

.btn--primary:hover {
  --btn-y: -2px;
  box-shadow: 0 20px 40px -14px rgba(79, 70, 229, 0.8);
}

.btn--ghost {
  color: var(--text);
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 10px 24px -22px rgba(31, 41, 55, 0.6);
}

.btn--ghost:hover {
  --btn-y: -2px;
  border-color: rgba(99, 102, 241, 0.45);
  background: rgba(99, 102, 241, 0.08);
  color: var(--brand-ink);
}

.shine {
  background-size: 220% 100%;
  animation: shine 6s linear infinite;
}

@keyframes shine {
  0% {
    background-position: 0% 50%;
  }
  100% {
    background-position: 200% 50%;
  }
}

/* --------------------------------------------------------------------------
   顶栏
   -------------------------------------------------------------------------- */
.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 40;
  transition: background-color 0.3s, backdrop-filter 0.3s, border-color 0.3s, box-shadow 0.3s;
  border-bottom: 1px solid transparent;
}

.nav.is-scrolled {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(170%) blur(14px);
  -webkit-backdrop-filter: saturate(170%) blur(14px);
  border-bottom-color: var(--border);
  box-shadow: 0 12px 30px -26px rgba(31, 41, 55, 0.8);
}

.nav__inner {
  height: 68px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand__logo {
  border-radius: 8px;
  box-shadow: 0 6px 16px -10px rgba(79, 70, 229, 0.9);
}

.brand__name {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--text);
}

.brand__name b {
  font-weight: 800;
}

.nav__links {
  display: flex;
  gap: 4px;
  margin-left: 8px;
}

.nav__links a {
  position: relative;
  padding: 8px 14px;
  border-radius: 9px;
  font-size: 14px;
  color: var(--text-soft);
  transition: color 0.2s, background-color 0.2s;
}

.nav__links a:hover {
  color: var(--text);
  background: rgba(17, 24, 39, 0.045);
}

.nav__links a.is-active {
  color: var(--brand-ink);
  background: rgba(99, 102, 241, 0.12);
}

.nav__cta {
  margin-left: auto;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  padding: 148px 0 96px;
  position: relative;
}

/* 跟随鼠标的柔和光晕 */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    620px circle at var(--hx, 50%) var(--hy, 38%),
    rgba(99, 102, 241, 0.14),
    transparent 62%
  );
  opacity: 0;
  transition: opacity 0.6s var(--ease);
  pointer-events: none;
  z-index: 0;
}

.hero.is-hover::before {
  opacity: 1;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1.02fr 1fr;
  gap: 56px;
  align-items: center;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-soft);
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 10px 26px -24px rgba(31, 41, 55, 0.7);
}

.pill b {
  color: var(--text);
}

.pill__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5);
  animation: ping 2.4s ease-out infinite;
}

@keyframes ping {
  0% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.45);
  }
  70% {
    box-shadow: 0 0 0 9px rgba(16, 185, 129, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
  }
}

.hero__title {
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.03em;
  margin: 22px 0 18px;
  font-weight: 800;
  color: var(--text);
}

.hero__desc {
  margin: 0;
  max-width: 540px;
  color: var(--text-soft);
  font-size: 16.5px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 32px 0 0;
}

.stats {
  display: flex;
  gap: 40px;
  margin: 44px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--border);
}

.stats dt {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, #1f2430, #4f46e5);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.stats dd {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--text-dim);
}

/* --------------------------------------------------------------------------
   Hero 右侧：软件界面示意（软件浅色主题）
   -------------------------------------------------------------------------- */
.mock-wrap {
  perspective: 1200px;
}

.mock {
  position: relative;
  transform-style: preserve-3d;
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) translate3d(0, 0, 0);
}

.mock__halo {
  position: absolute;
  inset: -14% -10%;
  background: radial-gradient(circle at 50% 40%, rgba(99, 102, 241, 0.26), transparent 62%);
  filter: blur(46px);
  z-index: 0;
}

.mock__window {
  position: relative;
  z-index: 1;
  border-radius: 14px;
  border: 1px solid rgba(17, 24, 39, 0.1);
  background: var(--panel-solid);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.mock__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-bottom: 1px solid #eef0f5;
  background: #ffffff;
}

.mock__dots {
  display: inline-flex;
  gap: 6px;
}

.mock__dots i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #e4e7ee;
}

.mock__brand {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text);
}

.mock__brand img {
  border-radius: 6px;
}

.mock__ver {
  font-size: 11px;
  color: var(--text-dim);
  padding: 1px 8px;
  border-radius: 999px;
  background: rgba(17, 24, 39, 0.05);
}

.mock__grow {
  flex: 1;
}

.mock__icons {
  display: inline-flex;
  gap: 8px;
}

.mock__icons i {
  width: 14px;
  height: 14px;
  border-radius: 5px;
  background: rgba(17, 24, 39, 0.07);
}

.mock__ctrl {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 14px 10px;
}

.mock__toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  padding: 7px 12px;
  border-radius: 10px;
  background: linear-gradient(120deg, var(--brand-deep), var(--brand));
  box-shadow: 0 10px 20px -14px rgba(79, 70, 229, 1);
}

.mock__live {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #fca5a5;
  animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.45;
    transform: scale(0.82);
  }
}

.mock__search {
  flex: 1;
  font-size: 12px;
  color: var(--text-dim);
  padding: 7px 12px;
  border-radius: 10px;
  border: 1px solid #e9ecf3;
  background: #f7f8fb;
}

.mock__chips,
.mock__list {
  display: flex;
  gap: 8px;
  padding: 0 14px 12px;
}

.chip {
  font-size: 11.5px;
  color: var(--text-soft);
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid #e9ecf3;
  background: #fafbfe;
  white-space: nowrap;
}

.chip--on {
  color: var(--brand-ink);
  border-color: rgba(99, 102, 241, 0.3);
  background: rgba(99, 102, 241, 0.1);
}

.mock__list {
  flex-direction: column;
  gap: 10px;
  padding-bottom: 14px;
}

.rcard {
  display: flex;
  gap: 11px;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid #eef0f5;
  background: #ffffff;
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
}

.rcard:hover {
  transform: translateX(3px);
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: 0 12px 26px -22px rgba(79, 70, 229, 0.8);
}

.rcard__thumb {
  width: 54px;
  height: 44px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: rgba(99, 102, 241, 0.1);
  color: var(--brand-deep);
}

.rcard__thumb svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.rcard__thumb--video svg {
  fill: currentColor;
  stroke: none;
}

.rcard__thumb--audio {
  background: rgba(6, 182, 212, 0.12);
  color: var(--cyan-ink);
}

.rcard__thumb--img {
  background: rgba(245, 158, 11, 0.14);
  color: var(--amber-ink);
}

.rcard__body {
  min-width: 0;
  flex: 1;
}

.rcard__row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.tag {
  font-size: 10.5px;
  color: var(--brand-ink);
  background: rgba(99, 102, 241, 0.1);
  padding: 1px 7px;
  border-radius: 5px;
}

.tag--audio {
  color: var(--cyan-ink);
  background: rgba(6, 182, 212, 0.12);
}

.tag--img {
  color: var(--amber-ink);
  background: rgba(245, 158, 11, 0.14);
}

.rcard__domain {
  font-size: 11px;
  color: var(--text-dim);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rcard__title {
  margin: 5px 0 3px;
  font-size: 12.5px;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.rcard__meta {
  margin: 0;
  font-size: 11px;
  color: var(--text-dim);
}

.ok {
  color: var(--green-ink);
}

.run {
  color: var(--brand-ink);
}

.mock__foot {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-top: 1px solid #eef0f5;
  background: #fafbfe;
}

.mock__bar-track {
  flex: 1;
  height: 5px;
  border-radius: 999px;
  background: #e9ecf3;
  overflow: hidden;
}

.mock__bar-track i {
  display: block;
  height: 100%;
  width: 40%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--brand-deep), #06b6d4);
  animation: bar 3.4s ease-in-out infinite;
}

@keyframes bar {
  0%,
  100% {
    width: 34%;
  }
  50% {
    width: 72%;
  }
}

.mock__foot-text {
  font-size: 11px;
  color: var(--text-dim);
}

/* --------------------------------------------------------------------------
   核心能力卡片
   -------------------------------------------------------------------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.card {
  position: relative;
  padding: 26px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: transform 0.35s var(--ease), border-color 0.35s, box-shadow 0.35s;
  will-change: transform;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    240px circle at var(--mx, 50%) var(--my, 50%),
    rgba(99, 102, 241, 0.12),
    transparent 62%
  );
  opacity: 0;
  transition: opacity 0.35s;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.32);
  box-shadow: 0 30px 60px -34px rgba(79, 70, 229, 0.55);
}

.card:hover::before {
  opacity: 1;
}

.card__icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 13px;
  color: var(--brand-deep);
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.card__icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card__icon--violet {
  color: var(--violet-ink);
  background: rgba(139, 92, 246, 0.11);
  border-color: rgba(139, 92, 246, 0.22);
}

.card__icon--cyan {
  color: var(--cyan-ink);
  background: rgba(6, 182, 212, 0.11);
  border-color: rgba(6, 182, 212, 0.22);
}

.card__icon--amber {
  color: var(--amber-ink);
  background: rgba(245, 158, 11, 0.13);
  border-color: rgba(245, 158, 11, 0.24);
}

.card__icon--green {
  color: var(--green-ink);
  background: rgba(5, 150, 105, 0.11);
  border-color: rgba(5, 150, 105, 0.22);
}

.card__icon--rose {
  color: var(--rose-ink);
  background: rgba(244, 63, 94, 0.1);
  border-color: rgba(244, 63, 94, 0.2);
}

.card__title {
  margin: 18px 0 8px;
  font-size: 18px;
  font-weight: 650;
  color: var(--text);
}

.card__desc {
  margin: 0;
  color: var(--text-soft);
  font-size: 14.5px;
}

.card__list {
  margin: 16px 0 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px dashed rgba(17, 24, 39, 0.1);
}

.card__list li {
  position: relative;
  padding-left: 18px;
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.9;
}

.card__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.14);
}

/* --------------------------------------------------------------------------
   三步上手
   -------------------------------------------------------------------------- */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.step {
  position: relative;
  padding: 26px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, #ffffff, #f8f9fd);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.step::after {
  content: "";
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, transparent, var(--brand), transparent);
  opacity: 0.85;
}

.step__num {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--brand-deep);
}

.step__title {
  margin: 12px 0 8px;
  font-size: 19px;
  color: var(--text);
}

.step__desc {
  margin: 0;
  color: var(--text-soft);
  font-size: 14.5px;
}

/* --------------------------------------------------------------------------
   支持范围：跑马灯 + 说明
   -------------------------------------------------------------------------- */
.marquee {
  position: relative;
  overflow: hidden;
  padding: 26px 0;
  margin-bottom: 40px;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}

.marquee__track {
  display: flex;
  gap: 14px;
  width: max-content;
  animation: marquee 34s linear infinite;
}

.marquee:hover .marquee__track {
  animation-play-state: paused;
}

.chip--lg {
  font-size: 15px;
  padding: 12px 22px;
  border-radius: 999px;
  border-color: rgba(99, 102, 241, 0.18);
  background: rgba(255, 255, 255, 0.9);
  color: var(--brand-ink);
  box-shadow: 0 12px 26px -24px rgba(31, 41, 55, 0.7);
}

@keyframes marquee {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-50%, 0, 0);
  }
}

.notes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.note {
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-soft);
}

.note__title {
  margin: 0 0 8px;
  font-size: 16.5px;
  color: var(--text);
}

.note__desc {
  margin: 0;
  color: var(--text-soft);
  font-size: 14.5px;
}

/* --------------------------------------------------------------------------
   常见问题
   -------------------------------------------------------------------------- */
.faq {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq__item {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  transition: border-color 0.3s, background-color 0.3s;
}

.faq__item[open] {
  border-color: rgba(99, 102, 241, 0.32);
  background: #f7f8ff;
}

.faq__item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 52px 18px 22px;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text);
  position: relative;
}

.faq__item summary::-webkit-details-marker {
  display: none;
}

.faq__item summary::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--text-soft);
  border-bottom: 2px solid var(--text-soft);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.3s var(--ease), border-color 0.3s;
}

.faq__item[open] summary::after {
  transform: translateY(-30%) rotate(-135deg);
  border-color: var(--brand-deep);
}

.faq__body {
  padding: 0 22px 20px;
  color: var(--text-soft);
  font-size: 14.5px;
}

/* --------------------------------------------------------------------------
   下载 CTA
   -------------------------------------------------------------------------- */
.cta {
  position: relative;
  border-radius: 24px;
  border: 1px solid rgba(99, 102, 241, 0.22);
  background: linear-gradient(135deg, #eef2ff 0%, #f6f3ff 46%, #ecfeff 100%);
  box-shadow: 0 34px 70px -50px rgba(79, 70, 229, 0.6);
  overflow: hidden;
}

.cta__glow {
  position: absolute;
  width: 460px;
  height: 460px;
  right: -110px;
  top: -160px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.3), transparent 66%);
  filter: blur(40px);
  animation: orb-a 20s ease-in-out infinite;
}

.cta__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 46px 48px;
}

.cta__title {
  margin: 0 0 10px;
  font-size: clamp(24px, 3vw, 34px);
  letter-spacing: -0.02em;
  color: var(--text);
}

.cta__desc {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 26px;
}

.cta__icon {
  width: 128px;
  height: 128px;
  border-radius: 28px;
  box-shadow: 0 26px 50px -24px rgba(79, 70, 229, 0.8);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* --------------------------------------------------------------------------
   页脚
   -------------------------------------------------------------------------- */
.footer {
  border-top: 1px solid var(--border);
  background: #f8f9fc;
  padding: 42px 0;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer__brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  color: var(--text);
}

.footer__brand img {
  border-radius: 7px;
}

.footer__note {
  margin: 0;
  max-width: 800px;
  font-size: 13px;
  color: var(--text-dim);
}

.footer__note b {
  color: var(--text-soft);
}

.footer__copy {
  margin: 0;
  font-size: 12.5px;
  color: var(--text-dim);
}

/* --------------------------------------------------------------------------
   滚动进场
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translate3d(0, 26px, 0);
  transition: opacity 0.75s var(--ease), transform 0.75s var(--ease);
  transition-delay: var(--delay, 0ms);
  will-change: opacity, transform;
}

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

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero {
    padding-top: 128px;
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .cta__inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 38px 32px;
  }
  .cta__icon {
    align-self: flex-end;
    margin-top: -20px;
  }
}

@media (max-width: 860px) {
  .nav__links {
    display: none;
  }
  .section {
    padding: 76px 0;
  }
  .stats {
    gap: 26px;
  }
  .stats dt {
    font-size: 22px;
  }
}

@media (max-width: 560px) {
  .wrap,
  .wrap--narrow {
    width: calc(100% - 32px);
  }
  .hero {
    padding: 116px 0 64px;
  }
  .hero__actions .btn {
    width: 100%;
  }
  .cards {
    grid-template-columns: 1fr;
  }
  .footer__inner {
    gap: 12px;
  }
}

/* --------------------------------------------------------------------------
   无障碍：减少动态效果
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
  .bg__orb,
  .cta__glow,
  .cta__icon,
  .marquee__track,
  .mock__bar-track i,
  .shine {
    animation: none !important;
  }
  .mock {
    transform: none !important;
  }
}