@charset "UTF-8";
/* ==========================================================================
   阿东的大象星球 · 官网样式
   视觉语言沿用「大象星球」产品设计体系（miniprogram/app.wxss）：
   白底清爽 · 天蓝 #3D7EFF 主色 · 霓虹绿 #C8FF00 强调 · 黑字白卡 · 大圆角轻阴影
   深空段落取自品牌 logo 的深蓝-青绿基调
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  /* 中性 */
  --c-ink: #111111;
  --c-text: #1a1a1a;
  --c-text-2: #5b6472;
  --c-text-3: #8a93a2;
  --c-line: rgba(0, 0, 0, 0.07);
  --c-line-2: rgba(0, 0, 0, 0.12);
  --c-bg: #f5f6f8;
  --c-bg-alt: #fbfbfd;
  --c-card: #ffffff;

  /* 品牌 */
  --c-primary: #4a79e8;
  --c-primary-ink: #1e4fbe;
  --c-primary-soft: #eef3fe;
  --c-primary-deep: #163a8f;
  --c-accent: #c8ff00;
  --c-accent-ink: #111111;
  --c-mint: #b8e6c8;
  --c-danger: #ff4d6a;

  /* 深空 */
  --c-space-0: #060f18;
  --c-space-1: #0a1a26;
  --c-space-2: #0e2635;
  --c-space-3: #163546;
  --c-space-line: rgba(255, 255, 255, 0.1);
  --c-space-text: rgba(255, 255, 255, 0.72);
  --c-space-text-2: rgba(255, 255, 255, 0.5);

  /* 形状 */
  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 26px;
  --r-xl: 34px;
  --r-2xl: 42px;
  --r-pill: 999px;

  --sh-xs: 0 1px 2px rgba(16, 24, 40, 0.04), 0 1px 3px rgba(16, 24, 40, 0.04);
  --sh-sm: 0 4px 16px rgba(16, 24, 40, 0.05);
  --sh-md: 0 12px 32px rgba(16, 24, 40, 0.07);
  --sh-lg: 0 24px 60px rgba(16, 24, 40, 0.1);
  --sh-glow: 0 12px 36px rgba(61, 126, 255, 0.24);
  --sh-card: 0 1px 1px rgba(16, 24, 40, 0.03), 0 2px 6px rgba(16, 24, 40, 0.04),
    0 18px 44px -14px rgba(16, 24, 40, 0.14);
  --sh-lift: 0 1px 1px rgba(16, 24, 40, 0.04), 0 4px 10px rgba(16, 24, 40, 0.05),
    0 32px 64px -18px rgba(16, 24, 40, 0.2);
  --hi-top: inset 0 1px 0 rgba(255, 255, 255, 0.72);
  --hi-top-dark: inset 0 1px 0 rgba(255, 255, 255, 0.08);

  /* 排版 */
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Source Han Sans SC",
    "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas,
    "Liberation Mono", monospace;

  --maxw: 1200px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-soft: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 2. 基础 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

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

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

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

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

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

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

::selection {
  background: rgba(61, 126, 255, 0.2);
}

:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 999;
  background: #fff;
  padding: 12px 18px;
  border-radius: 0 0 var(--r-sm) 0;
}
.skip-link:focus {
  left: 0;
}

/* ---------- 3. 版式工具 ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
.wrap-wide {
  max-width: 1360px;
}

.section {
  padding: 104px 0;
  position: relative;
}
.section-sm {
  padding: 72px 0;
}
.section-tight {
  padding: 56px 0;
}
.bg-alt {
  background: var(--c-bg-alt);
}
.bg-card {
  background: var(--c-card);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--c-primary-ink);
  background: var(--c-primary-soft);
  border-radius: var(--r-pill);
  padding: 6px 14px;
  margin-bottom: 20px;
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-primary);
}
.eyebrow--dark {
  color: #dff0ff;
  background: rgba(61, 126, 255, 0.16);
  border: 1px solid rgba(120, 175, 255, 0.28);
}
.eyebrow--dark::before {
  background: var(--c-accent);
}

.h-xl {
  font-size: clamp(40px, 6.4vw, 76px);
  line-height: 1.03;
  letter-spacing: -0.042em;
  font-weight: 800;
  text-wrap: balance;
}
.h-lg {
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.14;
  letter-spacing: -0.032em;
  font-weight: 800;
  text-wrap: balance;
}
.h-md {
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.26;
  letter-spacing: -0.024em;
  font-weight: 700;
  text-wrap: balance;
}
.h-sm {
  font-size: 18px;
  line-height: 1.4;
  letter-spacing: -0.01em;
  font-weight: 700;
}
.lead {
  font-size: clamp(16px, 1.35vw, 19px);
  line-height: 1.85;
  color: var(--c-text-2);
  max-width: 60ch;
}
.muted {
  color: var(--c-text-3);
  font-size: 14px;
}
.num {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  letter-spacing: -0.024em;
}
.hl {
  position: relative;
  white-space: nowrap;
}
.hl::after {
  content: "";
  position: absolute;
  left: -0.06em;
  right: -0.06em;
  bottom: 0.08em;
  height: 0.34em;
  background: var(--c-accent);
  border-radius: 4px;
  z-index: -1;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.7s var(--ease-out) 0.15s;
}
.in .hl::after,
.hl.in::after {
  transform: scaleX(1);
}

.section-head {
  max-width: 760px;
  margin-bottom: 56px;
}
.section-head--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-head .lead {
  margin-top: 18px;
}

/* ---------- 4. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 50px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: 15px;
  font-weight: 650;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: transform 0.28s var(--ease-out), box-shadow 0.28s var(--ease-out),
    background-color 0.24s ease, color 0.24s ease, border-color 0.24s ease;
  will-change: transform;
}
.btn:active {
  transform: scale(0.975);
}
.btn-ink {
  background: var(--c-ink);
  color: #fff;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.14);
}
.btn-ink:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.2);
}
.btn-primary {
  background: var(--c-primary);
  color: #fff;
  box-shadow: var(--sh-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  background: #2f70f5;
}
.btn-accent {
  background: var(--c-accent);
  color: var(--c-accent-ink);
  box-shadow: 0 10px 28px rgba(200, 255, 0, 0.22);
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 38px rgba(200, 255, 0, 0.32);
}
.btn-ghost {
  background: transparent;
  border-color: var(--c-line-2);
  color: var(--c-text);
}
.btn-ghost:hover {
  border-color: var(--c-ink);
  transform: translateY(-2px);
}
.btn-ghost-dark {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.22);
  color: #fff;
  backdrop-filter: blur(6px);
}
.btn-ghost-dark:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
}
.btn-sm {
  height: 40px;
  padding: 0 18px;
  font-size: 14px;
}
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 650;
  font-size: 15px;
  color: var(--c-primary-ink);
}
.link-arrow span {
  transition: transform 0.3s var(--ease-out);
}
.link-arrow:hover span {
  transform: translateX(4px);
}

/* ---------- 5. 导航 ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background-color 0.35s ease, box-shadow 0.35s ease,
    border-color 0.35s ease, backdrop-filter 0.35s ease;
  border-bottom: 1px solid transparent;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  overflow: hidden;
  background: #0b2231;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.16), 0 6px 16px rgba(0, 0, 0, 0.18);
  flex-shrink: 0;
}
.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.brand-name {
  font-size: 15.5px;
  font-weight: 750;
  letter-spacing: 0.01em;
}
.brand-sub {
  font-size: 11px;
  letter-spacing: 0.06em;
  opacity: 0.55;
  font-weight: 500;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  position: relative;
  padding: 9px 15px;
  border-radius: var(--r-pill);
  font-size: 14.5px;
  font-weight: 600;
  opacity: 0.78;
  transition: opacity 0.25s ease, background-color 0.25s ease;
}
.nav-links a:hover {
  opacity: 1;
}
.nav-links a[aria-current="page"] {
  opacity: 1;
}
.nav-links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 3px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-accent);
  transform: translateX(-50%);
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav-burger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid currentColor;
  border-radius: 12px;
  background: transparent;
  opacity: 0.7;
  position: relative;
}
.nav-burger i {
  position: absolute;
  left: 50%;
  width: 18px;
  height: 1.6px;
  background: currentColor;
  border-radius: 2px;
  transform: translateX(-50%);
  transition: transform 0.3s var(--ease-out), opacity 0.2s ease;
}
.nav-burger i:nth-child(1) {
  top: 15px;
}
.nav-burger i:nth-child(2) {
  top: 20px;
}
.nav-burger i:nth-child(3) {
  top: 25px;
}
.nav.open .nav-burger i:nth-child(1) {
  transform: translateX(-50%) translateY(5px) rotate(45deg);
}
.nav.open .nav-burger i:nth-child(2) {
  opacity: 0;
}
.nav.open .nav-burger i:nth-child(3) {
  transform: translateX(-50%) translateY(-5px) rotate(-45deg);
}

/* 顶部深空态 */
.nav {
  color: #fff;
}
.nav.scrolled {
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom-color: var(--c-line);
  box-shadow: 0 8px 30px rgba(16, 24, 40, 0.05);
  color: var(--c-text);
}
.nav.scrolled .btn-ghost-dark {
  background: var(--c-ink);
  border-color: var(--c-ink);
  color: #fff;
}
.nav.scrolled .brand-mark {
  box-shadow: 0 0 0 1px var(--c-line), 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* 全屏滚动进度 */
.progress-bar {
  position: fixed;
  inset: 0 auto auto 0;
  height: 2px;
  width: 0;
  z-index: 110;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  transition: width 0.1s linear;
}

/* ---------- 6. 深空段落 ---------- */
.dark {
  position: relative;
  background: var(--c-space-1);
  background-image: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.045),
    transparent 22%
  );
  color: #fff;
  overflow: hidden;
}
/* 极浅颗粒纹理：消除大面积深色的「数码塑料感」 */
.dark::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.032;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}
.dark::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 90%;
  background: radial-gradient(
      58% 58% at 20% 14%,
      rgba(74, 121, 232, 0.3),
      transparent 66%
    ),
    radial-gradient(48% 48% at 84% 26%, rgba(184, 230, 200, 0.17), transparent 70%),
    radial-gradient(72% 56% at 52% 104%, rgba(74, 121, 232, 0.14), transparent 72%),
    conic-gradient(
      from 208deg at 34% 4%,
      transparent 0deg,
      rgba(184, 230, 200, 0.1) 12deg,
      transparent 30deg,
      transparent 180deg
    );
  pointer-events: none;
}
.dark > * {
  position: relative;
  z-index: 2;
}
.grid-lines {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.5;
  background-image: linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(70% 60% at 50% 30%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(70% 60% at 50% 30%, #000 20%, transparent 78%);
}
#starfield {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
/* 星云：三团极缓游移的柔光，给深空一点「有厚度」的底。
   全部走 transform/opacity，且 blur 只作用在小面积元素上，避免大面积重绘。
   与 #starfield 同为 z-index 0，靠 DOM 顺序压在其下（星点在云之上）。 */
.hero-nebula {
  position: absolute;
  inset: -12%;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.neb {
  position: absolute;
  display: block;
  border-radius: 50%;
  filter: blur(38px);
  will-change: transform;
  transform: translate3d(0, 0, 0);
}
.neb--a {
  left: 6%;
  top: 8%;
  width: 46%;
  height: 42%;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(74, 121, 232, 0.22),
    rgba(74, 121, 232, 0.07) 46%,
    transparent 72%
  );
  animation: nebDriftA 26s var(--ease-soft, ease-in-out) infinite;
}
.neb--b {
  right: 4%;
  top: 16%;
  width: 40%;
  height: 38%;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(176, 226, 214, 0.16),
    rgba(176, 226, 214, 0.05) 48%,
    transparent 74%
  );
  animation: nebDriftB 32s var(--ease-soft, ease-in-out) infinite;
}
.neb--c {
  left: 28%;
  bottom: 2%;
  width: 52%;
  height: 34%;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(96, 122, 214, 0.14),
    rgba(96, 122, 214, 0.04) 50%,
    transparent 76%
  );
  animation: nebDriftC 38s var(--ease-soft, ease-in-out) infinite;
}
@keyframes nebDriftA {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.72;
  }
  50% {
    transform: translate3d(2.6%, 3.4%, 0) scale(1.09);
    opacity: 1;
  }
}
@keyframes nebDriftB {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1.05);
    opacity: 0.62;
  }
  50% {
    transform: translate3d(-3.2%, 2.2%, 0) scale(1);
    opacity: 0.95;
  }
}
@keyframes nebDriftC {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.55;
  }
  50% {
    transform: translate3d(2%, -2.6%, 0) scale(1.12);
    opacity: 0.88;
  }
}
.dark .lead {
  color: var(--c-space-text);
}
.dark .muted {
  color: var(--c-space-text-2);
}

/* ---------- 7. Hero ---------- */
.hero {
  padding: 168px 0 96px;
  min-height: 100dvh;
  display: flex;
  align-items: center;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  gap: 56px;
  align-items: center;
  width: 100%;
}
.hero h1 {
  margin: 0 0 26px;
}
.hero h1 .line {
  display: block;
  overflow: hidden;
}
.hero h1 .line > span {
  display: block;
  transform: translateY(105%);
  animation: riseIn 1s var(--ease-out) forwards;
}
.hero h1 .line:nth-child(2) > span {
  animation-delay: 0.12s;
}
.hero h1 .line:nth-child(3) > span {
  animation-delay: 0.24s;
}
@keyframes riseIn {
  to {
    transform: translateY(0);
  }
}
.hero .lead {
  max-width: 46ch;
  font-size: clamp(16px, 1.5vw, 18.5px);
  opacity: 0;
  animation: fadeUp 0.9s var(--ease-out) 0.42s forwards;
}
.hero-kicker {
  opacity: 0;
  animation: fadeUp 0.8s var(--ease-out) 0.06s forwards;
}
.hero-actions {
  margin-top: 36px;
  opacity: 0;
  animation: fadeUp 0.9s var(--ease-out) 0.54s forwards;
}
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.hero-quote {
  margin-top: 40px;
  padding-left: 18px;
  border-left: 2px solid rgba(200, 255, 0, 0.6);
  font-size: 15px;
  color: var(--c-space-text);
  opacity: 0;
  animation: fadeUp 0.9s var(--ease-out) 0.66s forwards;
}
.hero-quote strong {
  color: #fff;
  font-weight: 650;
}

/* 星球舞台 */
.stage {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  --px: 0;
  --py: 0;
  perspective: 1200px;
  opacity: 0;
  animation: fadeUp 1.2s var(--ease-out) 0.3s forwards;
}
.stage-glow {
  position: absolute;
  inset: 5%;
  border-radius: 50%;
  background: radial-gradient(
      circle at 50% 45%,
      rgba(184, 230, 200, 0.19),
      transparent 58%
    ),
    radial-gradient(circle at 50% 60%, rgba(61, 126, 255, 0.24), transparent 62%);
  filter: blur(22px);
  animation: breathe 7s var(--ease-in-out) infinite;
}
@keyframes breathe {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.85;
  }
  50% {
    transform: scale(1.07);
    opacity: 1;
  }
}
/* 远伴星：最远一层，最小最暗，视差位移也最小 */
.companion {
  position: absolute;
  top: 0;
  left: -1%;
  width: 13%;
  aspect-ratio: 1 / 1;
  z-index: 2;
  transform: translate3d(calc(var(--px, 0) * 5px), calc(var(--py, 0) * 4px), 0);
}
.companion-ball {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: radial-gradient(
    circle at 36% 32%,
    rgba(206, 240, 224, 0.8),
    rgba(74, 121, 232, 0.38) 46%,
    rgba(6, 16, 26, 0.92) 78%
  );
  box-shadow: inset -4px -5px 12px rgba(2, 8, 14, 0.85), 0 0 18px rgba(74, 121, 232, 0.4);
  animation: breathe 9s var(--ease-in-out) infinite;
}
.companion-ring {
  position: absolute;
  inset: -32% -14%;
  border-radius: 50%;
  border: 1px solid rgba(206, 240, 224, 0.32);
  transform: rotate(-20deg) scaleY(0.27);
}
/* 轨道：用 rotateX 把圆环压成真实椭圆（.stage 提供 perspective）。
   z-index 1 让整条环位于星球之下 —— 被星球遮住的那段自然「从背后穿过」；
   mask 让远侧（局部上半）变暗，近侧保持亮度，强化纵深。 */
.orbit {
  position: absolute;
  z-index: 1;
  border-radius: 50%;
  border: 1px solid rgba(206, 228, 255, 0.7);
  pointer-events: none;
  will-change: transform;
  transform: translate3d(calc(var(--px, 0) * -9px), calc(var(--py, 0) * -6px), 0)
    rotateX(var(--tilt, 74deg)) rotateZ(var(--roll, -12deg));
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.86) 40%, #000 100%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.86) 40%, #000 100%);
}
.orbit--1 {
  inset: 4%;
  --tilt: 72deg;
  --roll: -14deg;
  --dur: 34s;
  border-color: rgba(230, 244, 255, 0.82);
}
.orbit--2 {
  inset: -11%;
  --tilt: 79deg;
  --roll: 8deg;
  --dur: 54s;
  --dir: reverse;
  border-color: rgba(200, 255, 0, 0.78);
}
.orbit--3 {
  inset: 13%;
  --tilt: 64deg;
  --roll: 27deg;
  --dur: 44s;
  border-color: rgba(132, 182, 255, 0.9);
}
/* 近侧环：只保留前半弧，压在星球面上 —— 环系「穿过」星球的另一半证据 */
.orbit--near {
  inset: -16%;
  z-index: 4;
  --tilt: 77deg;
  --roll: -7deg;
  --dur: 68s;
  --dir: reverse;
  border-color: rgba(238, 252, 244, 0.95);
  mask-image: linear-gradient(180deg, transparent 34%, rgba(0, 0, 0, 0.55) 64%, rgba(0, 0, 0, 0.95) 100%);
  -webkit-mask-image: linear-gradient(180deg, transparent 34%, rgba(0, 0, 0, 0.55) 64%, rgba(0, 0, 0, 0.95) 100%);
}
.sat-track {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  animation: orbitSpin var(--dur, 30s) linear infinite;
  animation-direction: var(--dir, normal);
}
@keyframes orbitSpin {
  to {
    transform: rotate(360deg);
  }
}
.sat {
  position: absolute;
  top: -8px;
  left: 50%;
  width: 15px;
  height: 15px;
  margin-left: -7.5px;
  border-radius: 50%;
  background: radial-gradient(
    circle at 34% 30%,
    #fff,
    #cfe6ff 44%,
    rgba(74, 121, 232, 0.9) 76%,
    rgba(10, 24, 38, 0.95)
  );
  box-shadow: 0 0 16px rgba(184, 214, 255, 0.75);
}
.orbit--2 .sat {
  width: 10px;
  height: 10px;
  margin-left: -5px;
  background: radial-gradient(circle at 36% 32%, #f7ffdf, var(--c-accent) 62%, rgba(58, 84, 6, 0.9));
  box-shadow: 0 0 18px rgba(200, 255, 0, 0.65);
}
.orbit--near .sat {
  width: 15px;
  height: 15px;
  margin-left: -7.5px;
  background: radial-gradient(
    circle at 34% 30%,
    #fff,
    #e2f2ff 38%,
    rgba(136, 184, 255, 0.9) 74%,
    rgba(12, 26, 42, 0.95)
  );
  box-shadow: 0 0 22px rgba(184, 214, 255, 0.9);
}
/* 行星本体 */
.planet {
  position: relative;
  z-index: 3;
  width: 78%;
  aspect-ratio: 1 / 1;
  transform: translate3d(calc(var(--px, 0) * 13px), calc(var(--py, 0) * 9px), 0);
}
.planet-ball {
  position: absolute;
  inset: 0;
  display: block;
  border-radius: 50%;
  overflow: hidden;
  /* 内侧接近全实，外侧渐隐 ⇒ 素材的深空底色与 Hero 星空无缝相接，
     圆盘硬边（玻璃罩的第一 tell）随之消失 */
  mask-image: radial-gradient(
    circle at 50% 48%,
    #000 62%,
    rgba(0, 0, 0, 0.86) 80%,
    rgba(0, 0, 0, 0.4) 92%,
    transparent 100%
  );
  -webkit-mask-image: radial-gradient(
    circle at 50% 48%,
    #000 62%,
    rgba(0, 0, 0, 0.86) 80%,
    rgba(0, 0, 0, 0.4) 92%,
    transparent 100%
  );
  /* 素材深空底色比 Hero 底色更暗，整体提亮一档才接得上 */
  filter: saturate(1.12) brightness(1.13) contrast(1.05);
  animation: float 9s var(--ease-in-out) infinite;
}
.planet-face {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.planet-shade {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  /* 只负责「落座」：外圈压暗，与 mask 羽化叠加后把素材边缘溶进星空 */
  background: radial-gradient(
    circle at 46% 46%,
    transparent 56%,
    rgba(7, 18, 34, 0.2) 80%,
    rgba(5, 13, 26, 0.6) 100%
  );
}
.planet-halo {
  position: absolute;
  inset: -14%;
  z-index: -1;
  border-radius: 50%;
  /* 贴着素材里那颗星球的临边：受光侧（左下）暖色外溢，外圈一圈冷色大气 */
  background: radial-gradient(circle at 34% 72%, rgba(255, 232, 158, 0.26), transparent 38%),
    radial-gradient(circle at 46% 60%, rgba(96, 158, 255, 0.34), transparent 55%),
    radial-gradient(circle at 50% 50%, transparent 42%, rgba(126, 178, 255, 0.26) 50%, transparent 62%);
  filter: blur(20px);
}
/* 行星地平弧：贯穿 Hero 底部的一道极淡弧线，暗示「我们站在一颗星球上」 */
.hero-arc {
  position: absolute;
  left: -24%;
  right: -24%;
  bottom: -90%;
  height: 94%;
  z-index: 1;
  border-radius: 50%;
  border-top: 1px solid rgba(206, 240, 224, 0.22);
  box-shadow: 0 -16px 70px rgba(74, 121, 232, 0.22);
  pointer-events: none;
}
@keyframes float {
  0%,
  100% {
    transform: translateY(0) rotate(-0.6deg);
  }
  50% {
    transform: translateY(-14px) rotate(0.6deg);
  }
}
.stage-badge {
  position: absolute;
  z-index: 6;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 15px;
  border-radius: var(--r-pill);
  background: rgba(9, 24, 34, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(12px);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.32);
}
.stage-badge i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-accent);
  box-shadow: 0 0 10px rgba(200, 255, 0, 0.9);
  animation: pulseDot 2.4s ease-in-out infinite;
}
.stage-badge--a {
  top: 15%;
  left: -3%;
  animation: floatA 7.5s var(--ease-in-out) infinite;
}
.stage-badge--b {
  bottom: 13%;
  right: -7%;
  animation: floatB 8.5s var(--ease-in-out) infinite;
}
@keyframes floatA {
  0%,
  100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(6px, -10px);
  }
}
@keyframes floatB {
  0%,
  100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(-8px, 8px);
  }
}
@keyframes pulseDot {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.45;
    transform: scale(0.72);
  }
}

/* Hero 底部数据条 */
.hero-stats {
  margin-top: 76px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  border-top: 1px solid var(--c-space-line);
  padding-top: 30px;
}
.hero-stat .n {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.hero-stat .n em {
  font-style: normal;
  font-size: 0.5em;
  font-weight: 650;
  margin-left: 3px;
  color: var(--c-accent);
}
.hero-stat .t {
  margin-top: 6px;
  font-size: 13.5px;
  color: var(--c-space-text-2);
}

/* ---------- 8. 滚动字幕 ---------- */
.marquee {
  overflow: hidden;
  border-block: 1px solid var(--c-line);
  background: var(--c-card);
  padding: 20px 0;
  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: 44px;
  width: max-content;
  animation: marquee 38s linear infinite;
}
.marquee:hover .marquee-track {
  animation-play-state: paused;
}
.marquee-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text-2);
  white-space: nowrap;
}
.marquee-item::after {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-primary);
  opacity: 0.5;
}
@keyframes marquee {
  to {
    transform: translateX(-50%);
  }
}

/* ---------- 9. 通用卡片 ---------- */
.grid {
  display: grid;
  gap: 22px;
}
.g-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.g-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.g-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  position: relative;
  background: linear-gradient(180deg, #ffffff, #fdfefe);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: 28px;
  box-shadow: var(--sh-card), var(--hi-top);
  transition: transform 0.5s var(--ease-out), box-shadow 0.5s var(--ease-out),
    border-color 0.4s ease;
}
.card-hover {
  transform: translateY(var(--sy, 0px));
}
.card-hover:hover {
  transform: translateY(calc(var(--sy, 0px) - 4px));
  box-shadow: var(--sh-lift), var(--hi-top);
  border-color: rgba(61, 126, 255, 0.32);
}
.card-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: var(--c-primary-soft);
  color: var(--c-primary-ink);
  margin-bottom: 18px;
  flex-shrink: 0;
}
.card-icon svg {
  width: 22px;
  height: 22px;
}
.card h3 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 10px;
}
.card p {
  color: var(--c-text-2);
  font-size: 14.8px;
  line-height: 1.75;
}

/* 编号卡（问题/主张） */
.card-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--c-primary);
  margin-bottom: 14px;
  display: block;
}

/* 对照行（常规做法 vs 我们） */
.compare {
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--c-card);
}
.compare-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}
.compare-row + .compare-row {
  border-top: 1px solid var(--c-line);
}
.compare-cell {
  padding: 22px 26px;
  font-size: 15px;
  line-height: 1.7;
}
.compare-cell:first-child {
  color: var(--c-text-3);
  border-right: 1px solid var(--c-line);
}
.compare-cell:last-child {
  color: var(--c-text);
  font-weight: 550;
  background: linear-gradient(
    90deg,
    rgba(61, 126, 255, 0.045),
    rgba(200, 255, 0, 0.05)
  );
}
.compare-cell b {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  font-weight: 700;
  margin-bottom: 7px;
  color: var(--c-text-3);
}
.compare-cell:last-child b {
  color: var(--c-primary-ink);
}
.compare-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  background: var(--c-bg-alt);
  border-bottom: 1px solid var(--c-line);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-text-3);
}
.compare-head div {
  padding: 14px 26px;
}
.compare-head div:last-child {
  color: var(--c-ink);
}

/* 特性列表 */
.feature-list {
  display: grid;
  gap: 0;
}
.feature-item {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--c-line);
}
.feature-item:last-child {
  border-bottom: 0;
}
.feature-check {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--c-primary-soft);
  color: var(--c-primary-ink);
  margin-top: 2px;
}
.feature-check svg {
  width: 14px;
  height: 14px;
}
.feature-item h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}
.feature-item p {
  color: var(--c-text-2);
  font-size: 14.6px;
  line-height: 1.72;
}
.dark .feature-item {
  border-bottom-color: var(--c-space-line);
}
.dark .feature-check {
  background: rgba(200, 255, 0, 0.14);
  color: var(--c-accent);
}
.dark .feature-item p {
  color: var(--c-space-text);
}

/* ---------- 10. 三层价值 ---------- */
.layers {
  display: grid;
  gap: 14px;
}
.layer {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr) minmax(0, 1.15fr);
  align-items: center;
  gap: 26px;
  padding: 26px 30px;
  border-radius: var(--r-lg);
  border: 1px solid var(--c-line);
  background: var(--c-card);
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}
.layer:hover {
  transform: translateX(6px);
  box-shadow: var(--sh-sm);
}
.layer-tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--c-text-3);
}
.layer-name {
  font-size: clamp(19px, 2vw, 24px);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.layer-desc {
  font-size: 15px;
  color: var(--c-text-2);
}
.layer--3 {
  background: linear-gradient(115deg, #0d2434, #14324a);
  border-color: transparent;
  color: #fff;
}
.layer--3 .layer-tag {
  color: var(--c-accent);
}
.layer--3 .layer-desc {
  color: var(--c-space-text);
}
.layer--2 {
  background: linear-gradient(115deg, #eef4ff, #f7faff);
  border-color: rgba(61, 126, 255, 0.18);
}
.layer--1 {
  background: var(--c-card);
}

/* ---------- 11. 产品矩阵卡 ---------- */
.pcard {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  border: 1px solid var(--c-line);
  background: var(--c-card);
  padding: 0;
  display: flex;
  flex-direction: column;
  box-shadow: var(--sh-card), var(--hi-top);
  transition: transform 0.55s var(--ease-out), box-shadow 0.55s var(--ease-out),
    border-color 0.45s ease;
}
/* 顶部渐变描边：hover 时由中心向两侧展开 */
.pcard::before {
  content: "";
  position: absolute;
  inset: -1px -1px auto -1px;
  height: 1.5px;
  border-radius: var(--r-xl) var(--r-xl) 0 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(74, 121, 232, 0.75),
    rgba(184, 230, 200, 0.65),
    transparent
  );
  transform: scaleX(0);
  transform-origin: 50% 50%;
  transition: transform 0.7s var(--ease-out);
  pointer-events: none;
}
.pcard:hover::before {
  transform: scaleX(1);
}
.pcard {
  transform: translateY(var(--sy, 0px));
}
.pcard:hover {
  transform: translateY(calc(var(--sy, 0px) - 5px));
  box-shadow: var(--sh-lift), var(--hi-top);
  border-color: rgba(61, 126, 255, 0.26);
}
.pcard-art {
  position: relative;
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.pcard-art img {
  width: 58%;
  border-radius: 22px;
  box-shadow: 0 24px 50px rgba(16, 24, 40, 0.18);
  transition: transform 0.6s var(--ease-out);
}
.pcard:hover .pcard-art img {
  transform: scale(1.05) translateY(-4px);
}
.art-blue {
  background: linear-gradient(160deg, #dfeaff, #f2f7ff 70%);
}
.art-teal {
  background: linear-gradient(160deg, #d9f4ee, #f1fbf8 70%);
}
.art-violet {
  background: linear-gradient(160deg, #eadffb, #f7f2ff 70%);
}
.art-slate {
  background: linear-gradient(160deg, #e6ebf2, #f6f8fb 70%);
}
.pcard-body {
  padding: 26px 28px 30px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}
.pcard-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 750;
  letter-spacing: -0.015em;
}
.pcard-tag {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 3px 9px;
  border-radius: var(--r-pill);
  background: var(--c-primary-soft);
  color: var(--c-primary-ink);
}
.pcard-tag--live {
  background: rgba(200, 255, 0, 0.9);
  color: #111;
}
.pcard-tag--plan {
  background: var(--c-bg);
  color: var(--c-text-3);
  border: 1px solid var(--c-line);
}
.pcard p {
  color: var(--c-text-2);
  font-size: 14.6px;
  line-height: 1.75;
  flex: 1;
}
.pcard-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}
.chip {
  font-size: 12.5px;
  font-weight: 600;
  padding: 5px 11px;
  border-radius: var(--r-pill);
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  color: var(--c-text-2);
}

/* ---------- 11b. 主卡：微信小程序（横向大卡） ---------- */
/* 小程序是唯一面向用户的已上线产品，用横向大卡占据整行，
   与下方三张辅卡形成明确的主次关系。 */
.hero-pcard {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  gap: 0;
  border-radius: var(--r-2xl);
  border: 1px solid var(--c-line);
  background: var(--c-card);
  box-shadow: var(--sh-card), var(--hi-top);
  transition: transform 0.55s var(--ease-out), box-shadow 0.55s var(--ease-out),
    border-color 0.45s ease;
}
.hero-pcard::before {
  content: "";
  position: absolute;
  inset: -1px -1px auto -1px;
  height: 2px;
  border-radius: var(--r-2xl) var(--r-2xl) 0 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(74, 121, 232, 0.8),
    rgba(184, 230, 200, 0.7),
    transparent
  );
  transform: scaleX(0);
  transform-origin: 50% 50%;
  transition: transform 0.8s var(--ease-out);
  pointer-events: none;
}
.hero-pcard:hover::before {
  transform: scaleX(1);
}
.hero-pcard:hover {
  transform: translateY(calc(var(--sy, 0px) - 5px));
  box-shadow: var(--sh-lift), var(--hi-top);
  border-color: rgba(61, 126, 255, 0.26);
}
.hero-pcard-art {
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: linear-gradient(155deg, #dfeaff, #f2f7ff 62%, #eef3fe);
  min-height: 320px;
}
.hero-pcard-art img {
  width: 56%;
  max-width: 260px;
  border-radius: 26px;
  box-shadow: 0 28px 56px rgba(16, 24, 40, 0.2);
  transition: transform 0.7s var(--ease-out);
}
.hero-pcard:hover .hero-pcard-art img {
  transform: scale(1.045) translateY(-5px);
}
.hero-pcard-body {
  padding: 40px 44px 42px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.hero-pcard-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 780;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.hero-pcard-lead {
  color: var(--c-text-2);
  font-size: 15.4px;
  line-height: 1.78;
  max-width: 52ch;
}
.hero-pcard-points {
  gap: 16px 26px;
  margin-top: 4px;
}
.hpt h4 {
  font-size: 14.8px;
  font-weight: 720;
  letter-spacing: -0.008em;
  margin-bottom: 6px;
}
.hpt p {
  color: var(--c-text-3);
  font-size: 13.6px;
  line-height: 1.7;
}
.hero-pcard-chips {
  margin-top: 2px;
}
.hero-pcard-link {
  align-self: flex-start;
  margin-top: 6px;
}

/* 辅卡前的引导标签 */
.sub-label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 46px 0 20px;
  font-size: 13.6px;
  font-weight: 650;
  letter-spacing: 0.01em;
  color: var(--c-text-3);
}
.sub-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--c-line), transparent);
}

/* ---------- 12. 同频小笺 ---------- */
.note-scene {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 60px;
  align-items: center;
}
.xiaojian {
  position: relative;
  border-radius: var(--r-xl);
  background: var(--c-card);
  border: 1px solid var(--c-line);
  box-shadow: var(--sh-lg);
  padding: 30px 30px 26px;
  max-width: 420px;
  animation: float 8s var(--ease-in-out) infinite;
}
.xiaojian::after {
  content: "";
  position: absolute;
  inset: 12px -12px -12px 12px;
  border-radius: var(--r-xl);
  background: linear-gradient(135deg, rgba(61, 126, 255, 0.1), rgba(200, 255, 0, 0.14));
  z-index: -1;
}
.xiaojian-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--c-line-2);
  margin-bottom: 18px;
}
.xiaojian-title {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.02em;
}
.xiaojian-stamp {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-primary-ink);
  background: var(--c-primary-soft);
  padding: 4px 10px;
  border-radius: var(--r-pill);
}
.xiaojian-to {
  font-size: 13.5px;
  color: var(--c-text-3);
  margin-bottom: 14px;
}
.xiaojian-list {
  display: grid;
  gap: 13px;
}
.xiaojian-list li {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 10px;
  font-size: 15.4px;
  line-height: 1.65;
  color: var(--c-text);
}
.xiaojian-list li b {
  color: var(--c-primary);
  font-weight: 800;
}
.xiaojian-quote {
  margin-top: 20px;
  padding: 16px 18px;
  border-radius: var(--r-md);
  background: var(--c-bg);
  font-size: 14.6px;
  color: var(--c-text-2);
  line-height: 1.7;
}
.xiaojian-quote span {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-text-3);
  margin-bottom: 6px;
}

/* ---------- 13. 手机模型 ---------- */
.phone {
  width: 300px;
  border-radius: 44px;
  padding: 10px;
  background: linear-gradient(160deg, #17222c, #0a1119);
  box-shadow: 0 40px 90px rgba(9, 20, 30, 0.34), 0 0 0 1px rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
}
.phone-screen {
  position: relative;
  border-radius: 36px;
  overflow: hidden;
  background: #f5f6f8;
  aspect-ratio: 3 / 6.2;
  display: flex;
  flex-direction: column;
}
.phone-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px 6px;
  font-size: 11px;
  font-weight: 700;
  color: #111;
}
.phone-status .dots {
  display: flex;
  gap: 3px;
}
.phone-status .dots i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #111;
  opacity: 0.6;
}
.phone-head {
  padding: 6px 20px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.phone-city {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 750;
}
.phone-city svg {
  width: 9px;
  height: 6px;
  opacity: 0.55;
}
.phone-body {
  padding: 0 16px 12px;
  display: grid;
  gap: 10px;
  overflow: hidden;
  flex: 1;
  /* 内容超出时底部渐隐，读作「下面还有」，而不是被硬生生截断 */
  -webkit-mask-image: linear-gradient(180deg, #000 78%, transparent 100%);
  mask-image: linear-gradient(180deg, #000 78%, transparent 100%);
}
.p-search {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 36px;
  padding: 0 14px;
  border-radius: var(--r-pill);
  background: #fff;
  font-size: 12px;
  color: #a0a0a0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}
.p-banner {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 16 / 7.4;
  background: linear-gradient(135deg, #0d2434, #1b4460);
}
.p-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.92;
}
.p-banner-copy {
  position: absolute;
  inset: auto 0 0 0;
  padding: 12px 14px;
  background: linear-gradient(transparent, rgba(5, 14, 20, 0.82));
  color: #fff;
}
.p-banner-copy b {
  display: block;
  font-size: 13.5px;
  font-weight: 750;
}
.p-banner-copy span {
  font-size: 11px;
  opacity: 0.78;
}
.p-section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 750;
  margin-top: 2px;
}
.p-section-title span {
  font-size: 11px;
  color: #a0a0a0;
  font-weight: 600;
}
.p-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
.p-card {
  background: #fff;
  border-radius: 12px;
  padding: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}
.p-card .thumb {
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  margin-bottom: 6px;
  background: #eef1f5;
}
.p-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.p-card b {
  display: block;
  font-size: 11.5px;
  font-weight: 700;
  line-height: 1.35;
}
.p-card span {
  font-size: 10.5px;
  color: #a0a0a0;
}
.p-tabbar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  padding: 8px 10px 12px;
  background: #fff;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
}
.p-tab {
  display: grid;
  place-items: center;
  gap: 3px;
  font-size: 10.5px;
  font-weight: 600;
  color: #a0a0a0;
}
.p-tab.on {
  color: var(--c-primary);
}
.p-tab i {
  width: 17px;
  height: 17px;
  border-radius: 6px;
  background: currentColor;
  opacity: 0.22;
}
.phone-frame-wrap {
  position: relative;
  display: grid;
  place-items: center;
}
.phone-glow {
  position: absolute;
  inset: 6% 0;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(61, 126, 255, 0.18), transparent 66%);
  filter: blur(20px);
}

/* ---------- 14. 数据带 ---------- */
.stats-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.stat {
  background: var(--c-card);
  padding: 30px 26px;
}
.stat .n {
  font-size: clamp(30px, 3.6vw, 44px);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1;
  color: var(--c-ink);
}
.stat .n sup {
  font-size: 0.4em;
  font-weight: 700;
  margin-left: 3px;
  color: var(--c-primary);
  top: -0.9em;
}
.stat .t {
  margin-top: 10px;
  font-size: 14px;
  color: var(--c-text-2);
}
.stat .s {
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--c-text-3);
}

/* ---------- 15. 架构分层图 ---------- */
.arch {
  display: grid;
  gap: 10px;
}
.arch-row {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding: 18px 22px;
  border-radius: var(--r-md);
  background: var(--c-card);
  border: 1px solid var(--c-line);
}
.arch-row .tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-text-3);
}
.arch-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.arch-items span {
  font-size: 13px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 8px;
  background: var(--c-bg);
  color: var(--c-text-2);
}
.arch-row.hot {
  background: linear-gradient(115deg, #f1f6ff, #fbfdff);
  border-color: rgba(61, 126, 255, 0.22);
}
.arch-row.hot .arch-items span {
  background: rgba(61, 126, 255, 0.1);
  color: var(--c-primary-ink);
}

/* ---------- 16. 时间线 / 路线 ---------- */
.road {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
  position: relative;
}
.road::before {
  content: "";
  position: absolute;
  top: 15px;
  left: 6%;
  right: 6%;
  height: 1px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  opacity: 0.35;
}
.road-step {
  position: relative;
  padding-top: 46px;
}
.road-dot {
  position: absolute;
  top: 6px;
  left: 0;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--c-primary);
  box-shadow: 0 0 0 6px rgba(61, 126, 255, 0.1);
}
.road-step.now .road-dot {
  background: var(--c-accent);
  border-color: #111;
  box-shadow: 0 0 0 6px rgba(200, 255, 0, 0.22);
}
.road-when {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.09em;
  color: var(--c-primary-ink);
  margin-bottom: 8px;
}
.road-step h4 {
  font-size: 16.5px;
  font-weight: 750;
  margin-bottom: 8px;
}
.road-step p {
  font-size: 14.2px;
  color: var(--c-text-2);
  line-height: 1.7;
}

/* ---------- 17. 深色 CTA ---------- */
.cta {
  border-radius: var(--r-2xl);
  padding: clamp(38px, 5vw, 66px);
  position: relative;
  overflow: hidden;
  background: linear-gradient(150deg, var(--c-space-1), var(--c-space-2));
  box-shadow: var(--hi-top-dark), 0 34px 80px -28px rgba(6, 15, 24, 0.6);
}
.cta-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: 40px;
  align-items: center;
}
.cta h2 {
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1.18;
  letter-spacing: -0.03em;
  font-weight: 800;
  margin-bottom: 16px;
}
.cta .lead {
  color: var(--c-space-text);
}
.cta-side {
  display: grid;
  gap: 12px;
}
.cta-mini {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border-radius: var(--r-md);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.08),
    rgba(255, 255, 255, 0.045)
  );
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--hi-top-dark);
  font-size: 14.2px;
  color: var(--c-space-text);
}
.cta-mini b {
  color: #fff;
  font-weight: 650;
  display: block;
  font-size: 14.6px;
  margin-bottom: 2px;
}
.cta-mini .ic {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: rgba(200, 255, 0, 0.14);
  color: var(--c-accent);
  flex-shrink: 0;
}
.cta-mini .ic svg {
  width: 17px;
  height: 17px;
}

/* ---------- 18. 页头（内页） ---------- */
.page-head {
  padding: 148px 0 78px;
}
.page-head h1 {
  font-size: clamp(32px, 4.6vw, 56px);
  line-height: 1.1;
  letter-spacing: -0.032em;
  font-weight: 800;
  max-width: 20ch;
}
.page-head .lead {
  margin-top: 20px;
}
.page-head-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}
.crumb {
  font-size: 13px;
  color: var(--c-space-text-2);
  margin-bottom: 18px;
}
.crumb a:hover {
  color: #fff;
}

/* 紧凑清单（产品页） */
.mini-list {
  display: grid;
  gap: 9px;
  margin-top: 4px;
}
.mini-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14.4px;
  line-height: 1.65;
  color: var(--c-text-2);
}
.mini-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-primary);
  opacity: 0.55;
}
.mini-list--dark li {
  color: var(--c-space-text);
}
.mini-list--dark li::before {
  background: var(--c-accent);
  opacity: 0.8;
}

/* 手风琴（运营后台） */
.acc {
  padding: 0;
  overflow: hidden;
}
.acc-head {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 28px;
  background: transparent;
  border: 0;
  text-align: left;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  transition: background-color 0.25s ease;
}
.acc-head:hover {
  background: rgba(61, 126, 255, 0.04);
}
.acc-caret {
  position: relative;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--c-primary-soft);
  flex-shrink: 0;
  transition: transform 0.35s var(--ease-out), background-color 0.25s ease;
}
.acc-caret::before,
.acc-caret::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--c-primary-ink);
  border-radius: 2px;
  transform: translate(-50%, -50%);
}
.acc-caret::before {
  width: 10px;
  height: 1.8px;
}
.acc-caret::after {
  width: 1.8px;
  height: 10px;
  transition: transform 0.3s var(--ease-out), opacity 0.25s ease;
}
.acc.open .acc-caret::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}
.acc.open .acc-caret {
  transform: rotate(180deg);
  background: var(--c-accent);
}
.acc-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s var(--ease-in-out);
}
.acc-body p {
  padding: 0 28px 26px;
  color: var(--c-text-2);
  font-size: 14.8px;
  line-height: 1.78;
  border-top: 1px dashed var(--c-line-2);
  padding-top: 20px;
  margin: 0 28px 0;
  padding-left: 0;
  padding-right: 0;
}
.acc.open .acc-head {
  color: var(--c-primary-ink);
}

/* 技术标签条（tech 页） */
.code-note {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 18px;
}
.code-note span {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 5px 10px;
  border-radius: 7px;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  color: var(--c-text-2);
}

/* 信息表（关于 / 联系） */
.info-table {
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--c-card);
}
.info-row {
  display: grid;
  grid-template-columns: 168px minmax(0, 1fr);
  gap: 20px;
  padding: 17px 24px;
  font-size: 14.8px;
  border-bottom: 1px solid var(--c-line);
}
.info-row:last-child {
  border-bottom: 0;
}
.info-row dt,
.info-row .k {
  color: var(--c-text-3);
  font-weight: 600;
}
.info-row .v {
  color: var(--c-text);
  word-break: break-word;
}
.info-row .v code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: 6px;
  padding: 2px 7px;
}

/* 通道卡 */
.channels {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}
.channel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 30px 28px;
  border-radius: var(--r-lg);
  border: 1px solid var(--c-line);
  background: linear-gradient(180deg, #ffffff, #fdfefe);
  box-shadow: var(--sh-card), var(--hi-top);
  transition: transform 0.5s var(--ease-out), box-shadow 0.5s var(--ease-out),
    border-color 0.4s ease;
}
.channel:hover {
  transform: translateY(-4px);
  box-shadow: var(--sh-lift), var(--hi-top);
  border-color: rgba(61, 126, 255, 0.32);
}
.channel .idx {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--c-primary);
}
.channel h3 {
  font-size: 19px;
  font-weight: 750;
  letter-spacing: -0.015em;
}
.channel p {
  color: var(--c-text-2);
  font-size: 14.6px;
  line-height: 1.75;
  flex: 1;
}
.channel dl {
  display: grid;
  gap: 8px;
  font-size: 13.6px;
  padding-top: 14px;
  border-top: 1px dashed var(--c-line-2);
}
.channel dl > div {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 10px;
}
.channel dt {
  color: var(--c-text-3);
}
.channel dd {
  color: var(--c-text);
  margin: 0;
}

/* 二维码卡 */
.qr-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 208px;
  gap: 38px;
  align-items: center;
  padding: 38px;
  border-radius: var(--r-xl);
  background: var(--c-card);
  border: 1px solid var(--c-line);
  box-shadow: var(--sh-sm);
}
.qr-box {
  padding: 12px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  box-shadow: var(--sh-xs);
}
.qr-box img {
  border-radius: 8px;
  width: 100%;
}

/* 待核对清单 */
.todo-card {
  border: 1px dashed rgba(255, 77, 106, 0.42);
  background: rgba(255, 77, 106, 0.045);
  border-radius: var(--r-lg);
  padding: 26px 28px;
}
.todo-card h4 {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 15.5px;
  font-weight: 750;
  color: #c22b46;
  margin-bottom: 12px;
}
.todo-card h4::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-danger);
}
.todo-card ul {
  display: grid;
  gap: 7px;
  font-size: 14.2px;
  color: var(--c-text-2);
}
.todo-card li::before {
  content: "· ";
  color: var(--c-danger);
  font-weight: 800;
}

@media (max-width: 860px) {
  .channels {
    grid-template-columns: 1fr;
  }
  .qr-card {
    grid-template-columns: 1fr;
    gap: 26px;
    padding: 28px;
  }
  .qr-box {
    max-width: 208px;
  }
  .info-row {
    grid-template-columns: 1fr;
    gap: 5px;
  }
}

/* 附录小字 */
.todo-inline {
  border-bottom: 1px dashed currentColor;
  opacity: 0.75;
}

/* ---------- 20. 页脚 ---------- */
.footer {
  background: var(--c-space-0);
  color: var(--c-space-text);
  padding: 72px 0 34px;
  font-size: 14px;
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}
.footer-brand .brand-mark {
  width: 42px;
  height: 42px;
}
.footer-brand b {
  color: #fff;
  font-size: 16px;
  font-weight: 750;
  display: block;
  letter-spacing: 0.01em;
}
.footer-brand span {
  font-size: 11.5px;
  color: var(--c-space-text-2);
  letter-spacing: 0.04em;
}
.footer-desc {
  max-width: 34ch;
  font-size: 13.6px;
  line-height: 1.8;
  color: var(--c-space-text-2);
}
.footer h5 {
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}
.footer li {
  margin-bottom: 11px;
}
.footer a {
  color: var(--c-space-text);
  transition: color 0.25s ease;
}
.footer a:hover {
  color: var(--c-accent);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 26px;
  justify-content: space-between;
  align-items: center;
  padding-top: 26px;
  font-size: 12.6px;
  color: var(--c-space-text-2);
}
.footer-bottom .legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}
/* ICP 备案号：法规要求在首页底部公示编号并链接工信部备案系统。
   全局 `a` 已是 color:inherit / 无下划线，这里只补一条极淡下划线暗示可点，
   hover 与键盘 focus 时提亮并压实 —— 页脚小字不该抢注意力，但必须能被看出来是链接。 */
.icp {
  color: inherit;
  padding-bottom: 1px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  transition: color 0.22s var(--ease-out), border-bottom-color 0.22s var(--ease-out);
}
.icp:hover,
.icp:focus-visible {
  color: var(--c-space-text);
  border-bottom-color: currentColor;
}

/* ---------- 21. 滚动揭示 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.85s var(--ease-out), transform 0.85s var(--ease-out);
  transition-delay: var(--d, 0s);
}
.reveal.in {
  opacity: 1;
  transform: none;
}
.reveal-l {
  opacity: 0;
  transform: translateX(-26px);
  transition: opacity 0.85s var(--ease-out), transform 0.85s var(--ease-out);
  transition-delay: var(--d, 0s);
}
.reveal-l.in {
  opacity: 1;
  transform: none;
}
.reveal-s {
  opacity: 0;
  transform: scale(0.96);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
  transition-delay: var(--d, 0s);
}
.reveal-s.in {
  opacity: 1;
  transform: none;
}

/* ---------- 22. 响应式 ---------- */
@media (max-width: 1080px) {
  .hero {
    padding-top: 140px;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 52px;
  }
  /* width:100% 不可省：margin:auto 会让网格项退出 stretch，
     而行星系统内部全是绝对定位子元素（无内在宽度），否则宽度塌成 0。 */
  .stage {
    width: 100%;
    max-width: 460px;
    margin: 0 auto;
  }
  .note-scene {
    grid-template-columns: 1fr;
    gap: 44px;
  }
  .cta-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .g-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .stats-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .road {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 34px;
  }
  .road::before {
    display: none;
  }
  /* 主卡改单列：图在上、正文在下 */
  .hero-pcard {
    grid-template-columns: 1fr;
  }
  .hero-pcard-art {
    min-height: 260px;
  }
  .hero-pcard-art img {
    width: 42%;
    max-width: 220px;
  }
  .hero-pcard-body {
    padding: 32px 34px 34px;
  }
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    inset: 68px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 16px 20px 24px;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--c-line);
    color: var(--c-text);
    box-shadow: 0 20px 40px rgba(16, 24, 40, 0.1);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.28s ease, transform 0.28s var(--ease-out);
  }
  .nav.open .nav-links {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }
  .nav-links a {
    padding: 13px 14px;
    border-radius: var(--r-sm);
    font-size: 15.5px;
  }
  .nav-links a[aria-current="page"] {
    background: var(--c-primary-soft);
  }
  .nav-links a[aria-current="page"]::after {
    display: none;
  }
  .nav-burger {
    display: block;
  }
  .nav-cta .btn {
    display: none;
  }
  .g-3,
  .g-2 {
    grid-template-columns: 1fr;
  }
  .layer {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 22px 24px;
  }
  .compare-row,
  .compare-head {
    grid-template-columns: 1fr;
  }
  .compare-cell:first-child {
    border-right: 0;
    border-bottom: 1px dashed var(--c-line-2);
  }
  .section {
    padding: 76px 0;
  }
  .arch-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

@media (max-width: 620px) {
  .wrap {
    padding: 0 18px;
  }
  .hero {
    padding: 124px 0 68px;
    min-height: auto;
  }
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .g-4,
  .stats-band,
  .road {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .phone {
    width: 260px;
  }
  .hero-pcard-body {
    padding: 26px 24px 28px;
    gap: 14px;
  }
  .hero-pcard-art {
    min-height: 210px;
  }
  .hero-pcard-points {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .hero-pcard-link {
    align-self: stretch;
    text-align: center;
  }
  .sub-label {
    margin: 34px 0 16px;
  }
  .card {
    padding: 24px;
  }
}

/* ---------- 22b. 进入加载：星球点亮 ----------
   纯 overlay，pointer-events:none 不夺焦点。三层退场保险：
   JS 就绪即退 → JS 定时兜底（1050ms）→ CSS 动画兜底（1150ms 起播）。
   任一条生效都会在 1.7s 内让出首屏，不会拖住截图脚本的 1.9s 等待。 */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 28px;
  background: radial-gradient(circle at 50% 40%, rgba(22, 58, 143, 0.5), transparent 62%),
    radial-gradient(circle at 50% 96%, rgba(184, 230, 200, 0.14), transparent 58%),
    var(--c-space-0);
  pointer-events: none;
  animation: plAutoHide 520ms var(--ease-out) 1150ms forwards;
}
.preloader.is-done {
  animation: plOut 420ms var(--ease-out) 0ms forwards;
}
/* 退场不只淡出：星球与文字同时放大并糊掉 —— 「被吸回深空」。
   背景层单独淡（整屏 blur 太贵），只对舞台与文字做 warp。 */
.preloader.is-done .pl-stage,
.preloader.is-done .pl-word,
.preloader.is-done .pl-load,
.preloader.is-done .pl-tip {
  animation: plWarpOut 420ms var(--ease-out) forwards;
}
@keyframes plWarpOut {
  from {
    opacity: 1;
    transform: scale(1);
    filter: blur(0);
  }
  to {
    opacity: 0;
    transform: scale(1.18);
    filter: blur(9px);
  }
}
@keyframes plOut {
  to {
    opacity: 0;
    visibility: hidden;
  }
}
@keyframes plAutoHide {
  to {
    opacity: 0;
    visibility: hidden;
  }
}
.pl-sky {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 48%, rgba(74, 121, 232, 0.3), transparent 40%),
    radial-gradient(circle at 50% 46%, rgba(184, 230, 200, 0.14), transparent 56%);
  filter: blur(6px);
}
/* 星球外圈光晕：把素材自带的深空底色与页面底色接上，圆盘硬边随之消失 */
.pl-halo {
  position: absolute;
  inset: 2%;
  border-radius: 50%;
  /* 临边辉光的峰值必须落在球缘上（这一层在球体之下，球内的部分全被遮住）：
     球 72% 时半径 77.7px，.pl-halo 半径约 103.5px ⇒ 峰值取 70%~94%（72~97px）。
     球在 66% 时峰值算在 48%，球一放大就落到球内、外侧只剩一圈空光，
     表现为「球内偏暗、球外偏亮」的断层。 */
  background: radial-gradient(circle at 46% 58%, rgba(96, 158, 255, 0.3), transparent 60%),
    radial-gradient(circle at 50% 80%, rgba(255, 232, 158, 0.2), transparent 48%),
    radial-gradient(circle at 50% 50%, transparent 70%, rgba(126, 178, 255, 0.34) 80%, transparent 94%);
  filter: blur(14px);
}
.pl-stage {
  position: relative;
  width: 216px;
  height: 216px;
  display: grid;
  place-items: center;
  perspective: 760px;
  /* 从深空里浮现：小尺寸 + 糊 → 归位 + 清晰。
     perspective 属性与自身 transform 可以共存（前者作用于子元素） */
  animation: plApproach 0.72s var(--ease-out) both;
}
@keyframes plApproach {
  from {
    opacity: 0;
    transform: scale(0.6);
    filter: blur(12px);
  }
  to {
    opacity: 1;
    transform: none;
    filter: blur(0);
  }
}
/* 深空星野：两组 box-shadow 星点铺满视口（偏移用 vw/vh，无需 JS），
   只动 opacity ⇒ 合成级。放在 .pl-sky 之外，否则会被它那层 blur 糊掉。 */
.pl-stars {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.pl-stars::before,
.pl-stars::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 50%;
}
.pl-stars::before {
  width: 2px;
  height: 2px;
  background: #fff;
  opacity: 0.55;
  box-shadow: 1.4vw 7.5vh 0 0 rgba(255, 255, 255, 0.55), 7.8vw 22vh 0 0 rgba(206, 240, 224, 0.45),
    13.2vw 4vh 0 0 rgba(255, 255, 255, 0.6), 6.4vw 38vh 0 0 rgba(196, 214, 255, 0.5),
    19.5vw 12vh 0 0 rgba(255, 255, 255, 0.5), 27.3vw 33vh 0 0 rgba(206, 240, 224, 0.42),
    33.8vw 8vh 0 0 rgba(255, 255, 255, 0.58), 24.1vw 47vh 0 0 rgba(196, 214, 255, 0.46),
    41.6vw 19vh 0 0 rgba(255, 255, 255, 0.52), 48.2vw 41vh 0 0 rgba(206, 240, 224, 0.44),
    56.7vw 6vh 0 0 rgba(255, 255, 255, 0.56), 52.4vw 29vh 0 0 rgba(196, 214, 255, 0.48),
    63.1vw 52vh 0 0 rgba(255, 255, 255, 0.5), 68.9vw 16vh 0 0 rgba(206, 240, 224, 0.42),
    74.5vw 37vh 0 0 rgba(255, 255, 255, 0.54), 81.2vw 9vh 0 0 rgba(196, 214, 255, 0.46),
    87.6vw 44vh 0 0 rgba(255, 255, 255, 0.5), 92.3vw 21vh 0 0 rgba(206, 240, 224, 0.44),
    96.8vw 58vh 0 0 rgba(255, 255, 255, 0.52), 84.4vw 71vh 0 0 rgba(196, 214, 255, 0.42),
    15.7vw 66vh 0 0 rgba(255, 255, 255, 0.48), 35.2vw 82vh 0 0 rgba(206, 240, 224, 0.4),
    55.9vw 74vh 0 0 rgba(255, 255, 255, 0.5), 70.3vw 88vh 0 0 rgba(196, 214, 255, 0.42),
    44.6vw 92vh 0 0 rgba(255, 255, 255, 0.46), 8.9vw 94vh 0 0 rgba(206, 240, 224, 0.4);
  animation: plTwinkle 3.6s var(--ease-in-out) infinite;
}
.pl-stars::after {
  width: 3px;
  height: 3px;
  background: #fff;
  opacity: 0.9;
  box-shadow: 9.6vw 15vh 4px 0 rgba(255, 255, 255, 0.75), 22.8vw 26vh 3px 0 rgba(206, 240, 224, 0.66),
    38.4vw 11vh 5px 0 rgba(255, 255, 255, 0.72), 31.7vw 57vh 3px 0 rgba(196, 214, 255, 0.62),
    46.9vw 34vh 4px 0 rgba(255, 255, 255, 0.74), 59.3vw 63vh 3px 0 rgba(206, 240, 224, 0.62),
    66.2vw 25vh 4px 0 rgba(255, 255, 255, 0.7), 77.8vw 49vh 3px 0 rgba(196, 214, 255, 0.64),
    88.1vw 32vh 4px 0 rgba(255, 255, 255, 0.72), 94.6vw 76vh 3px 0 rgba(206, 240, 224, 0.6),
    61.5vw 85vh 4px 0 rgba(255, 255, 255, 0.68), 42.3vw 79vh 3px 0 rgba(196, 214, 255, 0.6),
    18.4vw 88vh 4px 0 rgba(255, 255, 255, 0.66), 5.3vw 52vh 3px 0 rgba(206, 240, 224, 0.58);
  animation: plTwinkle 2.4s var(--ease-in-out) 0.6s infinite reverse;
}
@keyframes plTwinkle {
  0%,
  100% {
    opacity: 0.42;
  }
  50% {
    opacity: 1;
  }
}
/* 双环星尘带：放射状细条纹 + 环形 mask ⇒ 转起来像碎星带；两层反向自转 */
.pl-dust {
  position: absolute;
  inset: -7%;
  border-radius: 50%;
  background: repeating-conic-gradient(
    from 0deg,
    rgba(206, 240, 224, 0.8) 0deg 0.55deg,
    transparent 0.55deg 4.2deg
  );
  mask: radial-gradient(closest-side, transparent 57%, #000 66%, #000 74%, transparent 83%);
  -webkit-mask: radial-gradient(closest-side, transparent 57%, #000 66%, #000 74%, transparent 83%);
  opacity: 0.38;
  /* 细纹直接落地会像梳齿，半像素模糊后才是「星尘」 */
  filter: blur(0.5px);
  animation: plSpin 9s linear infinite;
}
.pl-dust::before {
  content: "";
  position: absolute;
  /* 必须放到球体半径之外 —— 球 72% 时半径 78px，原 inset 9% 的环带只有 62~77px，整圈被球遮住 */
  inset: -14%;
  border-radius: 50%;
  background: repeating-conic-gradient(
    from 90deg,
    rgba(184, 214, 255, 0.72) 0deg 0.4deg,
    transparent 0.4deg 6.4deg
  );
  mask: radial-gradient(closest-side, transparent 61%, #000 70%, #000 76%, transparent 85%);
  -webkit-mask: radial-gradient(closest-side, transparent 61%, #000 70%, #000 76%, transparent 85%);
  animation: plSpin 14s linear infinite reverse;
}
/* 脉冲光环：两圈从中心扩散，错开半个周期 ⇒ 连续涟漪 */
.pl-pulse {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(184, 214, 255, 0.75);
  box-shadow: 0 0 26px rgba(126, 178, 255, 0.28), inset 0 0 22px rgba(126, 178, 255, 0.18);
  pointer-events: none;
  animation: plPulse 1.7s var(--ease-out) infinite;
}
.pl-pulse--a {
  border-color: rgba(206, 240, 224, 0.8);
  box-shadow: 0 0 26px rgba(184, 230, 200, 0.26), inset 0 0 22px rgba(184, 230, 200, 0.16);
}
.pl-pulse--b {
  border-color: rgba(200, 255, 0, 0.5);
  box-shadow: 0 0 26px rgba(200, 255, 0, 0.22), inset 0 0 22px rgba(200, 255, 0, 0.14);
  animation-delay: -0.85s;
}
@keyframes plPulse {
  0% {
    transform: scale(0.54);
    opacity: 0;
  }
  14% {
    opacity: 0.85;
  }
  100% {
    transform: scale(1.92);
    opacity: 0;
  }
}
/* 两条椭圆轨道：父层 rotateX 压扁，子层 2D 旋转自动落在椭圆上 */
.pl-orbit {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(206, 228, 255, 0.62);
  transform: rotateX(74deg) rotateZ(-14deg);
}
/* 环上绕行的光弧：与 Hero 同一套做法，把「一圈线」变成「在转的轨道」 */
.pl-orbit::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  background: conic-gradient(
    from 0turn,
    transparent 0turn,
    transparent 0.46turn,
    rgba(226, 244, 255, 0.05) 0.58turn,
    var(--pl-arc, rgba(236, 248, 255, 0.9)) 0.72turn,
    rgba(226, 244, 255, 0.05) 0.86turn,
    transparent 0.94turn,
    transparent 1turn
  );
  mask: radial-gradient(closest-side, transparent calc(100% - 5px), #000 calc(100% - 2.4px), #000 100%);
  -webkit-mask: radial-gradient(closest-side, transparent calc(100% - 5px), #000 calc(100% - 2.4px), #000 100%);
  animation: plSpin var(--pl-arc-dur, 3.4s) linear infinite;
}
.pl-orbit--a {
  border-color: rgba(238, 248, 255, 0.72);
}
.pl-orbit--b {
  inset: -15%;
  --pl-arc-dur: 5.2s;
  --pl-arc: rgba(224, 255, 160, 0.85);
  border-color: rgba(200, 255, 0, 0.5);
  transform: rotateX(78deg) rotateZ(16deg);
}
.pl-orbit--a::before {
  animation-delay: -1.2s;
}
.pl-orbit--b::before {
  animation-direction: reverse;
  animation-delay: -3.4s;
}
/* 第三条最外层：倾角更大、更扁，把环系撑开成「三环」 */
.pl-orbit--c {
  inset: -26%;
  --pl-arc-dur: 6.8s;
  --pl-arc: rgba(196, 220, 255, 0.78);
  border-color: rgba(150, 190, 255, 0.34);
  transform: rotateX(83deg) rotateZ(-32deg);
}
.pl-orbit--c::before {
  animation-direction: reverse;
  animation-delay: -5.1s;
}
.pl-orbit--c i {
  animation-duration: 7.4s;
}
.pl-orbit i {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  animation: plSpin 2.8s linear infinite;
}
.pl-orbit i::after {
  content: "";
  position: absolute;
  top: -3.5px;
  left: 50%;
  width: 7px;
  height: 7px;
  margin-left: -3.5px;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, #fff, #d8e9ff 48%, rgba(74, 121, 232, 0.95));
  box-shadow: 0 0 14px rgba(184, 214, 255, 0.9);
}
.pl-orbit--b i {
  animation-duration: 4.6s;
  animation-direction: reverse;
}
.pl-orbit--b i::after {
  background: radial-gradient(circle at 36% 32%, #f7ffdf, var(--c-accent) 62%, rgba(58, 84, 6, 0.9));
  box-shadow: 0 0 14px rgba(200, 255, 0, 0.6);
}
@keyframes plSpin {
  to {
    transform: rotate(360deg);
  }
}
/* 星球本体：与 Hero 同一素材、同一套边缘羽化，避免出现第二套「星球画法」 */
.pl-ball {
  position: relative;
  z-index: 2;
  display: block;
  width: 72%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  overflow: hidden;
  mask-image: radial-gradient(circle at 50% 50%, #000 58%, rgba(0, 0, 0, 0.76) 82%, transparent 100%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, #000 58%, rgba(0, 0, 0, 0.76) 82%, transparent 100%);
  filter: saturate(1.14) brightness(1.2) contrast(1.04);
  /* 舞台已负责缩放浮现，这里只做「从过曝的光里收敛出星球」 */
  animation: plCondense 0.74s var(--ease-out) 0.02s both;
}
@keyframes plCondense {
  from {
    opacity: 0;
    filter: saturate(0.4) brightness(3.2) contrast(0.6);
  }
  55% {
    opacity: 1;
  }
  to {
    opacity: 1;
    filter: saturate(1.14) brightness(1.2) contrast(1.04);
  }
}
.pl-ball img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
@keyframes plRise {
  from {
    opacity: 0;
    transform: scale(0.84);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.pl-word {
  display: flex;
  font-size: 16px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.92);
}
.pl-word span {
  display: inline-block;
  opacity: 0;
  transform: translateY(9px);
  animation: plRise 0.42s var(--ease-out) both;
}
.pl-word span:nth-child(1) {
  animation-delay: 0.1s;
}
.pl-word span:nth-child(2) {
  animation-delay: 0.14s;
}
.pl-word span:nth-child(3) {
  animation-delay: 0.18s;
}
.pl-word span:nth-child(4) {
  animation-delay: 0.22s;
}
.pl-word span:nth-child(5) {
  animation-delay: 0.26s;
}
.pl-word span:nth-child(6) {
  animation-delay: 0.3s;
}
.pl-word span:nth-child(7) {
  animation-delay: 0.34s;
}
/* 不假装有进度：只给一条匀速往复的光带，任何时刻停下都不显得「卡住」 */
.pl-load {
  position: relative;
  width: 184px;
  height: 2px;
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, 0.12);
  overflow: hidden;
}
.pl-load span {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  border-radius: var(--r-pill);
}
/* 双光带反向跑：等待感是「有能量在流动」，而不是「进度卡在某个数」 */
.pl-load span:nth-child(1) {
  width: 42%;
  background: linear-gradient(90deg, transparent, var(--c-mint), var(--c-accent));
  animation: plSweep 1.25s var(--ease-in-out) infinite;
}
.pl-load span:nth-child(2) {
  width: 24%;
  background: linear-gradient(270deg, transparent, rgba(184, 214, 255, 0.7));
  animation: plSweepRev 1.9s var(--ease-in-out) infinite;
}
@keyframes plSweep {
  from {
    transform: translateX(-105%);
  }
  to {
    transform: translateX(240%);
  }
}
@keyframes plSweepRev {
  from {
    transform: translateX(300%);
  }
  to {
    transform: translateX(-110%);
  }
}
.pl-tip {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-indent: 0.22em;
  color: rgba(255, 255, 255, 0.44);
  opacity: 0;
  animation: plRise 0.42s var(--ease-out) 0.3s both;
}
@media (max-width: 520px) {
  .pl-stage {
    width: 168px;
    height: 168px;
  }
  .pl-word {
    font-size: 14px;
  }
}

/* ---------- 22c. Hero 动效加强（第六轮） ----------
   在不动既有层次结构（星云 3 团 / 轨道 4 条 / 卫星 4 颗）的前提下加动：
   ① 轨道上多出一道绕行的光弧（conic + 环形 mask，仅 transform 驱动）
   ② 卫星拖出与运动方向相切的彗尾
   ③ 卫星自呼吸、行星外层光晕呼吸
   ④ 整个舞台极慢 3D 摆动，星球系统「浮」起来 */
.orbit::before {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: conic-gradient(
    from 0turn,
    transparent 0turn,
    transparent 0.5turn,
    rgba(226, 244, 255, 0.04) 0.6turn,
    var(--arc, rgba(232, 246, 255, 0.85)) 0.72turn,
    rgba(226, 244, 255, 0.04) 0.83turn,
    transparent 0.9turn,
    transparent 1turn
  );
  mask: radial-gradient(closest-side, transparent calc(100% - 3.5px), #000 calc(100% - 2px), #000 100%);
  -webkit-mask: radial-gradient(closest-side, transparent calc(100% - 3.5px), #000 calc(100% - 2px), #000 100%);
  animation: orbitArcSpin var(--arcDur, 22s) linear infinite;
  animation-direction: var(--dir, normal);
  pointer-events: none;
}
.orbit--1 {
  --arcDur: 22s;
}
.orbit--2 {
  --arcDur: 30s;
  --arc: rgba(226, 255, 168, 0.8);
}
.orbit--3 {
  --arcDur: 26s;
  --arc: rgba(178, 208, 255, 0.85);
}
.orbit--near {
  --arcDur: 40s;
  --arc: rgba(240, 255, 250, 0.95);
}
/* 光弧错相位：同相位启动时四条弧会一起挤在同一侧 */
.orbit--1::before {
  animation-delay: -2.6s;
}
.orbit--2::before {
  animation-delay: -11.4s;
}
.orbit--3::before {
  animation-delay: -6.8s;
}
.orbit--near::before {
  animation-delay: -17.2s;
}
@keyframes orbitArcSpin {
  to {
    transform: rotate(360deg);
  }
}
/* 彗尾：卫星在环上位于圆的顶端，此处的切线恒为水平 ⇒ 水平尾迹自然相切；
   sat-track 旋转时尾迹跟着转，方向永远正确。 */
.sat::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 100%;
  width: 46px;
  height: 2px;
  margin-right: -1px;
  transform: translateY(-50%);
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, transparent, rgba(190, 218, 255, 0.6));
  pointer-events: none;
}
.orbit--2 .sat::after,
.orbit--near .sat::after {
  right: auto;
  left: 100%;
  margin-right: 0;
  margin-left: -1px;
  background: linear-gradient(270deg, transparent, rgba(190, 218, 255, 0.6));
}
.orbit--2 .sat::after {
  width: 34px;
  background: linear-gradient(270deg, transparent, rgba(200, 255, 0, 0.55));
}
.orbit--near .sat::after {
  width: 56px;
}
.sat {
  animation: satGlow 3.6s var(--ease-in-out) infinite;
}
.orbit--2 .sat {
  animation-duration: 4.4s;
}
.orbit--near .sat {
  animation-duration: 3s;
}
@keyframes satGlow {
  0%,
  100% {
    transform: scale(0.94);
    opacity: 0.86;
  }
  50% {
    transform: scale(1.06);
    opacity: 1;
  }
}
/* 行星外层光晕随呼吸起伏（与素材受光侧同步） */
.planet-halo {
  animation: breathe 11s var(--ease-in-out) infinite;
}
/* 整台星球系统极慢摆动：perspective 必须写在自身 transform 里，
   只写 perspective 属性只作用于子元素，摆动会退化成看不见的 0.2px */
.stage {
  animation: fadeUp 1.2s var(--ease-out) 0.3s forwards,
    stageSway 26s var(--ease-in-out) 1.8s infinite;
}
@keyframes stageSway {
  0%,
  100% {
    transform: perspective(1500px) rotateY(-2.4deg) rotateX(1.2deg);
  }
  50% {
    transform: perspective(1500px) rotateY(2.4deg) rotateX(-1.2deg);
  }
}
/* 小屏关掉光弧：拖尾与摆动已足够，省一层合成开销 */
@media (max-width: 720px) {
  .orbit::before {
    display: none;
  }
}

/* ---------- 23. 无障碍：降低动效 ---------- */
@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;
  }
  .card-hover,
  .pcard,
  .hero-pcard {
    transform: none !important;
  }
  .reveal,
  .reveal-l,
  .reveal-s,
  .hero .lead,
  .hero-actions,
  .hero-quote,
  .hero-kicker,
  .stage {
    opacity: 1 !important;
    transform: none !important;
  }
  .hero h1 .line > span {
    transform: none !important;
  }
  .hl::after {
    transform: scaleX(1) !important;
  }
  /* 星云停在静止中值态，不做游移 */
  .neb {
    animation: none !important;
    transform: none !important;
  }
  .neb--a {
    opacity: 0.86;
  }
  .neb--b {
    opacity: 0.78;
  }
  .neb--c {
    opacity: 0.7;
  }
  /* 进入加载动画整个不出现：无动效偏好下不该多出一段等待 */
  .preloader {
    display: none !important;
  }
}