@font-face {
  font-family: "Smiley Sans";
  src: url("../fonts/SmileySans-Oblique.woff2?v=2") format("woff2");
  font-weight: 400 700;
  font-display: swap;
}

@font-face {
  font-family: "YouSheBiaoTiHei";
  src: url("../fonts/YouSheBiaoTiHei.woff2?v=2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

/* ==== palette (brand constants, polarity-agnostic) ==== */
:root {
  --mint: #32C8B3;
  --mint-deep: #0DBFA6;
  --mint-pale: #BBFDE7;
  --mint-mist: #DAF9F4;
  --peri: #B4BDFB;
  --sky: #B3DAEF;
  --font-display: "Smiley Sans", "MiSans", "Microsoft YaHei", sans-serif;
  --font-hero: "YouSheBiaoTiHei", "Smiley Sans", "MiSans", "Microsoft YaHei", sans-serif;
  --font-body: "MiSans", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", "SF Mono", ui-monospace, Consolas, monospace;
  --ink-hero: #38413C;
  --radius: 24px;
  --radius-sm: 14px;
  --container: 1200px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ==== theme: light (source-site light VI, default polarity) ==== */
:root,
[data-theme="light"] {
  color-scheme: light;
  color: var(--ink-1);
  background-color: var(--bg);
  --bg: #FFFFFF;
  --bg-alt: #F5F5F7;
  --panel: #FFFFFF;
  --panel-hover: #FFFFFF;
  --panel-tint: #F7F8FA;
  --panel-tint-hover: #FFFFFF;
  --panel-sunk: #F3F3F6;
  --ink-1: #2F2C37;
  --ink-2: #4B5672;
  --ink-3: #64687A;
  --ink-4: #8A929D;
  --line: rgba(47, 44, 55, .12);
  --line-strong: rgba(47, 44, 55, .22);
  --line-cool: #D6E1ED;
  --accent-ink: #0B7A6B;
  --accent-line: rgba(50, 200, 179, .45);
  --on-accent: #10312C;
  --focus-ring: #0B7A6B;
  --glass: rgba(255, 255, 255, .78);
  --glass-line: rgba(47, 44, 55, .10);
  --grid-line: rgba(56, 65, 60, .06);
  --glow-mint: rgba(50, 200, 179, .13);
  --glow-peri: rgba(180, 189, 251, .16);
  --glow-sky: rgba(179, 218, 239, .20);
  --grad-a: #0E9C8A;
  --grad-b: #0F8F7E;
  --grad-c: #137F7F;
  --chip-bg: #DAF9F4;
  --chip-ink: #0B7A6B;
  --status-amber: #C98A1E;
  --status-amber-glow: rgba(201, 138, 30, .5);
  --scrollbar: rgba(47, 44, 55, .30);
  --scrollbar-hover: rgba(47, 44, 55, .46);
  --shadow-1: 0 1px 2px rgba(75, 86, 114, .05), 0 12px 28px -18px rgba(75, 86, 114, .28);
  --shadow-2: 0 26px 52px -26px rgba(75, 86, 114, .30);
  --shadow-lift: 0 14px 32px -16px rgba(50, 200, 179, .35);
  --shadow-deep: 0 32px 64px -40px rgba(47, 44, 55, .35);
  --shadow-btn: 0 16px 38px -12px rgba(50, 200, 179, .45), 0 0 0 1px rgba(50, 200, 179, .35);
  --tip-bg: rgba(255, 255, 255, .96);
  --dot-ring: rgba(255, 255, 255, .9);
  --term-bar: rgba(47, 44, 55, .03);
  --chart-grid: rgba(47, 44, 55, .08);
  --chart-axis: rgba(75, 86, 114, .9);
  --chart-total: #0B7A6B;
  --chart-load: rgba(90, 99, 210, .9);
  --chart-fill: rgba(11, 122, 107, .18);
  --chart-cross: rgba(47, 44, 55, .3);
  --chart-dot-total: #0B7A6B;
  --chart-dot-load: #5A63D2;
  --pc-bar-a: #7E8996;
  --pc-bar-b: #647080;
  --pc-bar-us-a: #0E9482;
  --pc-bar-us-b: #0B7A6B;
}

/* ==== theme: dark island (live-data section only) ==== */
[data-theme="dark"] {
  color-scheme: dark;
  color: var(--ink-1);
  background-color: var(--bg);
  --ink-hero: #EFEFF7;
  --bg: #2F2C37;
  --bg-alt: #38413C;
  --panel: #26232D;
  --panel-hover: #2B2834;
  --panel-tint: #26232D;
  --panel-tint-hover: #2B2834;
  --panel-sunk: #201E27;
  --ink-1: #EFEFF7;
  --ink-2: #C9CFDC;
  --ink-3: #A6ADBC;
  --ink-4: #6B7385;
  --line: rgba(239, 239, 247, .10);
  --line-strong: rgba(239, 239, 247, .22);
  --line-cool: rgba(239, 239, 247, .12);
  --accent-ink: #32C8B3;
  --accent-line: rgba(50, 200, 179, .45);
  --on-accent: #10312C;
  --focus-ring: #32C8B3;
  --glass: rgba(38, 35, 45, .78);
  --glass-line: rgba(239, 239, 247, .18);
  --grid-line: rgba(239, 239, 247, .05);
  --glow-mint: rgba(50, 200, 179, .08);
  --glow-peri: rgba(180, 189, 251, .07);
  --glow-sky: rgba(179, 218, 239, .06);
  --grad-a: #BBFDE7;
  --grad-b: #32C8B3;
  --grad-c: #B3DAEF;
  --chip-bg: rgba(50, 200, 179, .14);
  --chip-ink: #BBFDE7;
  --status-amber: #E8B04B;
  --status-amber-glow: rgba(232, 176, 75, .55);
  --scrollbar: rgba(239, 239, 247, .28);
  --scrollbar-hover: rgba(239, 239, 247, .42);
  --shadow-1: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 28px -18px rgba(0, 0, 0, .55);
  --shadow-2: 0 26px 52px -26px rgba(0, 0, 0, .6);
  --shadow-lift: 0 0 30px -8px rgba(50, 200, 179, .22);
  --shadow-deep: 0 32px 64px -40px rgba(0, 0, 0, .55);
  --shadow-btn: 0 16px 38px -12px rgba(50, 200, 179, .6), 0 0 0 1px rgba(50, 200, 179, .35);
  --tip-bg: rgba(32, 30, 39, .94);
  --dot-ring: rgba(32, 30, 39, .9);
  --term-bar: rgba(239, 239, 247, .03);
  --chart-grid: rgba(239, 239, 247, .08);
  --chart-axis: rgba(166, 173, 188, .9);
  --chart-total: #32C8B3;
  --chart-load: rgba(180, 189, 251, .9);
  --chart-fill: rgba(50, 200, 179, .22);
  --chart-cross: rgba(239, 239, 247, .3);
  --chart-dot-total: #32C8B3;
  --chart-dot-load: #B4BDFB;
  --pc-bar-a: #8B96A3;
  --pc-bar-b: #6E7A88;
  --pc-bar-us-a: #32C8B3;
  --pc-bar-us-b: #0DBFA6;
}

/* ==== reset ==== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar) transparent;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  background: var(--bg);
  color: var(--ink-1);
  -webkit-font-smoothing: antialiased;
}

body.no-scroll {
  overflow: hidden;
}

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

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

section {
  scroll-margin-top: 84px;
}

/* ==== selection / focus / scrollbar ==== */
::selection {
  background: var(--mint);
  color: var(--on-accent);
}

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar);
  border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-hover);
}

/* ==== layout ==== */
.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

.section {
  padding-block: clamp(72px, 9vw, 128px);
}

.section--alt {
  background: var(--bg-alt);
}

.section--plain {
  background: var(--bg);
  --panel: var(--panel-tint);
  --panel-hover: var(--panel-tint-hover);
}

/* ==== utilities ==== */
.font-display {
  font-family: var(--font-display);
}

.font-hero {
  font-family: var(--font-hero);
  font-weight: 400;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 14px;
  z-index: 200;
  padding: 11px 20px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--panel);
  color: var(--ink-1);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  box-shadow: var(--shadow-2);
  transform: translateY(-320%);
  transition: transform .2s var(--ease);
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: none;
}

/* ==== rv 占位（T6 动效接管，加类不隐藏） ==== */
.rv {}

/* ==== button ==== */
.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 24px;
  border-radius: 999px;
  background: var(--mint);
  color: var(--on-accent);
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  transition: background .2s var(--ease), transform .2s var(--ease);
}

.btn-cta:hover {
  background: var(--mint-pale);
}

.btn-cta:active {
  transform: scale(.97);
}

/* ==== header ==== */
#siteHeader {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}

#siteHeader.scrolled {
  background: var(--glass);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  backdrop-filter: blur(18px) saturate(1.4);
  border-bottom-color: var(--glass-line);
}

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 72px;
}

.header-brand {
  grid-column: 1;
  justify-self: start;
}

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

.logo-wordmark {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--ink-1);
  white-space: nowrap;
}

.nav {
  grid-column: 2;
  justify-self: center;
  display: none;
  align-items: center;
  gap: 26px;
}

.nav-link {
  font-size: 14px;
  color: var(--ink-2);
  white-space: nowrap;
  transition: color .2s var(--ease);
}

.nav-link:hover {
  color: var(--ink-1);
}

.nav-ext {
  display: none;
}

.header-actions {
  grid-column: 3;
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 14px;
}

.header-cta {
  display: none;
}

.burger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px;
  margin-right: -14px;
}

.burger-line {
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink-1);
  transition: transform .25s var(--ease), opacity .2s var(--ease);
}

.burger[aria-expanded="true"] .burger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.burger[aria-expanded="true"] .burger-line:nth-child(2) {
  opacity: 0;
}

.burger[aria-expanded="true"] .burger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==== drawer ==== */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  flex-direction: column;
  padding: 96px 28px 44px;
  background: var(--bg-alt);
  overflow-y: auto;
  overscroll-behavior: contain;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-12px);
  transition: opacity .3s var(--ease), transform .3s var(--ease), visibility 0s linear .3s;
}

.drawer.open {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity .3s var(--ease), transform .3s var(--ease), visibility 0s;
}

.drawer-link {
  display: block;
  padding: 15px 0;
  font-size: 19px;
  color: var(--ink-1);
  border-bottom: 1px solid var(--line);
  transition: color .2s var(--ease);
}

.drawer-link:hover {
  color: var(--accent-ink);
}

.drawer-divider {
  height: 1px;
  margin: 20px 0;
  background: var(--line);
}

.drawer-cta {
  margin-top: 28px;
  padding: 15px 24px;
  font-size: 15px;
  align-self: stretch;
}

/* ==== footer ==== */
.site-footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--line-cool);
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px 24px;
  padding-block: 64px 56px;
}

.footer-brand {
  grid-column: 1 / -1;
}

.footer-desc {
  max-width: 420px;
  margin-top: 18px;
  line-height: 1.85;
  color: var(--ink-2);
}

.footer-heading {
  margin-bottom: 18px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--ink-3);
}

.footer-links li + li {
  margin-top: 12px;
}

.footer-links a {
  color: var(--ink-2);
  transition: color .2s var(--ease);
}

.footer-links a:hover {
  color: var(--ink-1);
}

.footer-bottom {
  padding-block: 22px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-3);
}

/* ==== responsive ==== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

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

  .header-cta {
    display: inline-flex;
  }

  .footer-grid {
    grid-template-columns: 1.7fr 1fr 1fr 1fr;
    gap: 40px 32px;
  }

  .footer-brand {
    grid-column: auto;
  }
}

@media (min-width: 1024px) {
  .burger {
    display: none;
  }

  .nav {
    gap: 18px;
  }

  .nav-ext {
    display: flex;
    gap: 18px;
    padding-left: 18px;
    border-left: 1px solid var(--line);
  }
}

@media (min-width: 1280px) {
  .nav {
    gap: 26px;
  }

  .nav-ext {
    gap: 26px;
    padding-left: 26px;
  }
}

/* ==== T2/T3 板块 ==== */
.v4-hero {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background-color: var(--bg);
  scroll-margin-top: 84px;
  height: 100vh;
  height: 100svh;
  min-height: 500px;
}

.v4-hero-stage {
  position: relative;
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  min-height: 420px;
}

.v4-hero-grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: .6;
  background-image:
    radial-gradient(circle at center, rgba(217, 217, 217, .7) 0, rgba(217, 217, 217, .7) 3.5px, transparent 3.5px),
    linear-gradient(to right, transparent calc(50% - .5px), rgba(217, 217, 217, .7) calc(50% - .5px), rgba(217, 217, 217, .7) calc(50% + .5px), transparent calc(50% + .5px)),
    linear-gradient(to bottom, transparent calc(50% - .5px), rgba(217, 217, 217, .7) calc(50% - .5px), rgba(217, 217, 217, .7) calc(50% + .5px), transparent calc(50% + .5px));
  background-size: 62px 62px;
  pointer-events: none;
}

.v4-hero-video {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 100%;
  pointer-events: none;
}

.v4-hero-glow {
  position: absolute;
  z-index: 3;
  display: none;
  width: 520px;
  filter: blur(140px);
  opacity: .5;
  pointer-events: none;
}

.v4-hero-glow--a {
  top: 32px;
  left: -143px;
}

.v4-hero-glow--b {
  top: 46%;
  right: -60px;
  transform: rotate(90deg);
}

.v4-hero-copy {
  position: relative;
  z-index: 4;
  width: 100%;
  padding-block: clamp(96px, 16vh, 150px) clamp(32px, 6vh, 64px);
}

.v4-hero-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background:
    linear-gradient(96deg, rgba(255, 255, 255, .88) 0%, rgba(255, 255, 255, .74) 42%, rgba(255, 255, 255, .34) 68%, rgba(255, 255, 255, 0) 84%),
    linear-gradient(0deg, rgba(255, 255, 255, .42) 0%, rgba(255, 255, 255, 0) 46%);
}

.v4-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--ink-2);
  animation: v4-rise .6s var(--ease) .05s both;
}

.v4-kicker-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mint);
  animation: v4-pulse 2.4s var(--ease) infinite;
}

.v4-hero-title {
  display: flex;
  flex-direction: column;
  color: var(--ink-hero);
}

.v4-hero-lead {
  font-size: clamp(30px, 4.6vw, 60px);
  line-height: 1.16;
  letter-spacing: .05em;
  animation: v4-rise .65s var(--ease) .08s both;
}

.v4-hero-line {
  font-size: clamp(16px, 1.8vw, 24px);
  line-height: 1.7;
  letter-spacing: .05em;
}

.v4-hero-line:nth-of-type(2) {
  margin-top: clamp(24px, 4vh, 36px);
  animation: v4-rise .65s var(--ease) .2s both;
}

.v4-hero-line:nth-of-type(3) {
  animation: v4-rise .65s var(--ease) .32s both;
}

.v4-hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
  animation: v4-rise .65s var(--ease) .52s both;
}

.v4-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 34px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}

.v4-btn--solid {
  background: var(--mint);
  color: var(--on-accent);
}

.v4-btn--solid:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-btn);
}

.v4-btn--ghost {
  border: 1px solid var(--line-strong);
  color: var(--ink-1);
}

.v4-btn--ghost:hover {
  transform: translateY(-3px);
  border-color: var(--accent-ink);
  color: var(--accent-ink);
  box-shadow: 0 14px 32px -16px rgba(50, 200, 179, .45);
}

.v4-btn--grad {
  position: relative;
  overflow: hidden;
  border-radius: 999px;
  background-color: var(--mint-deep);
  background-image: linear-gradient(46deg, #EFEFF7 0%, #EFEFF7 10.5%, #B1E5DF 22%, #0DBFA6 86%, #137F7F 100%);
  color: var(--on-accent);
  box-shadow:
    0 1px 0 0 #F7F7F9 inset,
    -1px 0 0 0 rgba(0, 0, 0, .10) inset,
    1px 0 .5px 0 rgba(66, 81, 88, .15) inset,
    0 -1px 0 0 #FFFFFF inset,
    0 4px 16px 0 rgba(0, 0, 0, .08);
}

.v4-btn--grad::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -48px;
  width: 40px;
  height: 96px;
  transform: translateY(-50%) rotate(30deg);
  background: linear-gradient(90deg, rgba(255, 255, 255, .05) 3%, rgba(255, 255, 255, .45) 30%, rgba(255, 255, 255, .5) 43%, rgba(255, 255, 255, .45) 58%, rgba(255, 255, 255, .05) 89%);
  transition: right .6s var(--ease);
}

.v4-btn--grad:hover::after {
  right: calc(100% + 48px);
}

.v4-btn--light {
  border-radius: 999px;
  background: #F3F3F6;
  color: var(--ink-hero);
  box-shadow:
    -1px 0 0 0 rgba(0, 0, 0, .05),
    0 1px 0 0 rgba(253, 253, 253, .8),
    1px .5px 0 0 rgba(66, 81, 88, .2),
    0 -1px 0 0 rgba(255, 255, 255, .8),
    0 4px 16px 0 rgba(0, 0, 0, .08);
}

.v4-btn--light:hover {
  transform: translateY(-3px);
  background: #ECECF1;
}

.v4-logos {
  position: relative;
  z-index: 3;
  flex: none;
  padding-block: 22px;
  background: rgba(255, 255, 255, .04);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.v4-marquee {
  --v4-gap: 56px;
  --v4-dur: 48s;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}

.v4-marquee-track {
  display: flex;
  width: max-content;
  animation: v4-marquee var(--v4-dur) linear infinite;
}

.v4-marquee:hover .v4-marquee-track {
  animation-play-state: paused;
}

.v4-marquee-group {
  display: flex;
  align-items: center;
  gap: var(--v4-gap);
  padding-right: var(--v4-gap);
}

.v4-marquee--logos {
  --v4-gap: 64px;
  --v4-dur: 40s;
}

.v4-marquee--logos img {
  height: 32px;
  width: auto;
  flex: 0 0 auto;
  opacity: .92;
}

.v4-marquee--scene {
  --v4-gap: 24px;
  --v4-dur: 64s;
}

.v4-marquee--scene .v4-marquee-group {
  align-items: stretch;
}

.v4-data-head {
  margin-bottom: clamp(44px, 6vw, 64px);
  text-align: center;
}

.v4-data-title {
  font-size: clamp(28px, 4.4vw, 54px);
  line-height: 1.22;
}

.v4-data-line {
  display: block;
}

.v4-accent {
  color: var(--accent-ink);
}

.v4-scene {
  flex: 0 0 clamp(290px, 80vw, 340px);
  padding: 24px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
  transition: transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}

.v4-scene:hover {
  transform: translateY(-6px);
  border-color: var(--accent-line);
  box-shadow: var(--shadow-2);
}

.v4-scene-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.v4-scene-title {
  margin-top: 18px;
  font-size: 20px;
}

.v4-scene-desc {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-2);
}

.v4-edge {
  position: relative;
  overflow: hidden;
  background: var(--bg);
}

.v4-edge::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: radial-gradient(720px 400px at 50% -12%, var(--glow-mint), transparent 70%);
  pointer-events: none;
}

.v4-edge .container {
  position: relative;
  z-index: 1;
}

.v4-edge-head {
  margin-bottom: clamp(40px, 5vw, 64px);
  text-align: center;
}

.v4-edge-title {
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.25;
  letter-spacing: .06em;
}

.v4-edge-sub {
  margin-top: 12px;
  font-size: clamp(14px, 1.7vw, 20px);
  letter-spacing: .06em;
  color: var(--ink-3);
}

.v4-bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.v4-bento-card {
  padding: 2px;
  border-radius: 12px;
  background: linear-gradient(103.58deg, #E7F1FA 0%, #DAF9F4 100%);
}

.v4-bento-body {
  display: flex;
  flex-direction: column;
  height: 100%;
  border-radius: 10px;
  background: var(--panel-hover);
}

.v4-bento-media {
  flex: 1 1 auto;
  min-height: 0;
  padding: 12px;
  overflow: hidden;
  aspect-ratio: var(--ar, 4 / 3);
}

.v4-bento-media video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  background: var(--panel-sunk);
}

.v4-bento-card--wide {
  --ar: 1616 / 568;
}

.v4-bento-card--res {
  --ar: 704 / 564;
}

.v4-bento-card--price {
  --ar: 752 / 568;
}

.v4-bento-card--stable {
  --ar: 784 / 564;
}

.v4-bento-card--docker {
  --ar: 704 / 600;
}

.v4-bento-name {
  margin-top: 16px;
  padding-inline: 20px;
  text-align: center;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--ink-hero);
}

.v4-bento-desc {
  margin-top: 8px;
  padding: 0 20px 20px;
  text-align: center;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-3);
}

.v4-bento-media .pc {
  display: flex;
  height: 100%;
  padding: 20px 18px 14px;
  border-radius: 8px;
  background:
    radial-gradient(120% 90% at 12% 0%, var(--glow-mint) 0%, transparent 58%),
    var(--panel-sunk);
}

.pc-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: 1fr auto auto;
  gap: 0 10px;
  width: 100%;
}

.pc-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: 9px;
  min-height: 0;
}

.pc-val {
  font-size: clamp(11px, 1.15vw, 14px);
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
  transition: opacity .45s var(--ease), transform .45s var(--ease);
}

.pc-stack--us .pc-val {
  color: var(--accent-ink);
  font-weight: 700;
}

.pc-bar {
  width: 100%;
  max-width: 74px;
  border-radius: 16px;
  background: linear-gradient(180deg, var(--pc-bar-a) 0%, var(--pc-bar-b) 100%);
  box-shadow: var(--shadow-1);
  transform-origin: bottom;
  transition: transform .9s var(--ease);
}

.pc-stack:nth-child(1) .pc-bar {
  height: 100%;
}

.pc-stack:nth-child(2) .pc-bar {
  height: 85%;
  transition-delay: .08s;
}

.pc-stack:nth-child(3) .pc-bar {
  height: 42%;
  transition-delay: .16s;
}

.pc-stack:nth-child(4) .pc-bar {
  height: 28%;
  transition-delay: .24s;
}

.pc-stack--us .pc-bar {
  background: linear-gradient(135deg, var(--pc-bar-us-a) 0%, var(--pc-bar-us-b) 100%);
  box-shadow: var(--shadow-lift);
}

.pc-axis {
  grid-column: 1 / -1;
  height: 2px;
  margin-top: 12px;
  border-radius: 999px;
  background: var(--line);
}

.pc-name {
  margin-top: 10px;
  font-size: clamp(11px, 1.1vw, 13px);
  text-align: center;
  letter-spacing: .04em;
  color: var(--ink-3);
}

.pc-name--us {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--accent-ink);
}

html.js .rv:not(.on):not(.rv-done) .pc-bar {
  transform: scaleY(0);
}

html.js .rv:not(.on):not(.rv-done) .pc-val {
  opacity: 0;
  transform: translateY(8px);
}

html.js .rv.on .pc-val,
html.js .rv.rv-done .pc-val {
  transition-delay: .3s;
}

@media (min-width: 768px) {
  .v4-bento {
    grid-template-columns: 1fr 1fr;
    gap: 24px 16px;
  }

  .v4-bento-card--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .v4-bento {
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
  }

  .v4-bento-card--wide {
    grid-column: span 4;
  }

  .v4-bento-card--res,
  .v4-bento-card--price,
  .v4-bento-card--stable,
  .v4-bento-card--docker {
    grid-column: span 2;
  }

  .v4-bento-name {
    padding-inline: 48px;
    text-align: left;
    font-size: 20px;
  }

  .v4-bento-desc {
    padding: 0 48px 32px;
    text-align: left;
    font-size: 16px;
  }
}

@keyframes v4-rise {
  from {
    opacity: 0;
    transform: translateY(26px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes v4-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(50, 200, 179, .55);
  }

  75%, 100% {
    box-shadow: 0 0 0 10px rgba(50, 200, 179, 0);
  }
}

@keyframes v4-marquee {
  to {
    transform: translateX(-50%);
  }
}

@media (min-width: 640px) {
  .v4-hero {
    min-height: 550px;
    max-height: 900px;
  }
}

@media (min-width: 768px) {
  .v4-hero {
    min-height: 600px;
    max-height: 1000px;
  }
}

@media (min-width: 1024px) {
  .v4-hero {
    min-height: 550px;
    max-height: 900px;
  }

  .v4-hero-glow {
    display: block;
  }
}

@media (min-width: 1280px) {
  .v4-hero {
    min-height: 600px;
    max-height: 950px;
  }
}

@media (min-width: 1536px) {
  .v4-hero {
    min-height: 700px;
    max-height: 1400px;
  }
}

@media (max-width: 639px) {
  .v4-hero-copy {
    text-align: center;
  }

  .v4-hero-cta {
    justify-content: center;
  }
}

@media (max-width: 479px) {
  .v4-hero-lead {
    font-size: clamp(28px, 8.6vw, 34px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .v4-kicker,
  .v4-kicker-dot,
  .v4-hero-lead,
  .v4-hero-line,
  .v4-hero-cta,
  .v4-marquee-track {
    animation: none;
  }

  .v4-btn--grad::after {
    transition: none;
  }
}

/* ==== T4/T5 板块 ==== */
.v4-sec-head {
  margin-bottom: clamp(44px, 6vw, 64px);
  text-align: center;
}

.v4-sec-title {
  margin-top: 16px;
  font-size: clamp(28px, 4.4vw, 54px);
  line-height: 1.2;
}

.v4-sec-sub {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
}

.v4-live {
  position: relative;
  overflow: hidden;
  background: var(--bg);
}

.v4-live::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(760px 420px at 20% 0%, var(--glow-mint), transparent 70%),
    radial-gradient(620px 420px at 84% 100%, var(--glow-sky), transparent 70%);
  pointer-events: none;
}

.v4-live .container {
  position: relative;
  z-index: 1;
}

.lc {
  padding: clamp(18px, 2.4vw, 26px) clamp(16px, 2.4vw, 26px) clamp(16px, 2vw, 20px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.lc-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-bottom: 16px;
}

.lc-title {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ink-2);
}

.lc-online {
  position: relative;
  display: inline-block;
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--chart-total);
  box-shadow: 0 0 8px rgba(50, 200, 179, .75);
}

.lc-online::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--chart-total);
  animation: v4-dot-pulse 2.2s ease-out infinite;
}

@keyframes v4-dot-pulse {
  0% {
    transform: scale(1);
    opacity: .55;
  }

  70%, 100% {
    transform: scale(2.6);
    opacity: 0;
  }
}

.lc-live {
  color: var(--accent-ink);
  font-weight: 700;
  letter-spacing: .22em;
}

.lc-sep {
  color: var(--ink-3);
}

.lc-name {
  color: var(--ink-1);
  letter-spacing: .18em;
}

.lc-legend {
  display: flex;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ink-3);
}

.lc-lg {
  display: flex;
  align-items: center;
  gap: 7px;
}

.lc-swatch {
  display: inline-block;
  width: 14px;
  height: 3px;
  border-radius: 2px;
}

.lc-sw-total {
  background: var(--chart-total);
  box-shadow: 0 0 8px rgba(50, 200, 179, .55);
}

.lc-sw-load {
  background: var(--chart-load);
  box-shadow: 0 0 8px rgba(180, 189, 251, .5);
}

.lc-wrap {
  position: relative;
  height: clamp(200px, 26vw, 280px);
  border: 1px solid var(--line);
  border-radius: 14px;
  background:
    radial-gradient(120% 90% at 85% 0%, var(--glow-mint), transparent 55%),
    var(--panel-sunk);
  overflow: hidden;
}

.lc-wrap canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

.lc-dot {
  position: absolute;
  z-index: 2;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--chart-total);
  box-shadow: 0 0 10px rgba(50, 200, 179, .9), 0 0 0 1px var(--dot-ring);
  transform: translate(-50%, -50%);
  animation: v4-lc-pulse 1.6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes v4-lc-pulse {
  0%, 100% {
    box-shadow: 0 0 10px rgba(50, 200, 179, .9), 0 0 0 1px var(--dot-ring);
  }

  50% {
    box-shadow: 0 0 20px rgba(50, 200, 179, 1), 0 0 0 1px var(--dot-ring);
  }
}

.lc-tip {
  position: absolute;
  top: 10px;
  left: 0;
  z-index: 3;
  padding: 7px 11px;
  background: var(--tip-bg);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
  color: var(--ink-2);
  white-space: nowrap;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity .18s ease;
  pointer-events: none;
}

.lc-tip.on {
  opacity: 1;
}

.lc-tip .lt-t {
  margin-right: 8px;
  color: var(--ink-3);
}

.lc-tip .lt-total {
  color: var(--chart-total);
}

.lc-tip .lt-load {
  color: var(--chart-load);
}

.lc-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.lc-f {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.lc-k {
  letter-spacing: .06em;
  color: var(--ink-3);
}

.lc-v {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-1);
  font-variant-numeric: tabular-nums;
}

.lc-v-teal {
  color: var(--accent-ink);
}

.lc-f-note {
  margin-left: auto;
  align-self: center;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--ink-3);
}

.lc-group-tag {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--accent-ink);
}

.lc-group-tag::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--line-strong), transparent);
}

.lc-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  width: 100%;
  margin-top: 8px;
}

.v4-prod-title {
  text-align: center;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.25;
  letter-spacing: .08em;
}

.v4-prod-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px 16px;
  margin-top: 44px;
}

.v4-prod {
  display: flex;
  min-width: 0;
  flex-direction: column;
  text-decoration: none;
}

.v4-prod-name {
  min-height: 28px;
  margin-bottom: 16px;
  text-align: center;
  font-size: 18px;
  font-weight: 500;
  line-height: 28px;
  color: var(--ink-3);
  transition: color .18s var(--ease);
}

.v4-prod:hover .v4-prod-name,
.v4-prod:focus-visible .v4-prod-name,
.v4-prod.is-active .v4-prod-name {
  color: var(--ink-1);
}

.v4-prod.is-active .v4-prod-name {
  font-weight: 700;
}

.v4-prod-media {
  position: relative;
  height: min(376px, 82vw);
  overflow: hidden;
  border-radius: 24px;
  background: var(--media-bg, #d7dde2);
  box-shadow: inset 0 1px rgba(255, 255, 255, .32);
  transition: transform .18s var(--ease), box-shadow .18s var(--ease);
}

.v4-prod:hover .v4-prod-media,
.v4-prod:focus-visible .v4-prod-media,
.v4-prod.is-active .v4-prod-media {
  transform: translateY(-2px);
  box-shadow: inset 0 1px rgba(255, 255, 255, .38), 0 16px 40px rgba(66, 81, 88, .10);
}

.v4-prod-frame {
  position: absolute;
  top: var(--frame-top, 50%);
  left: calc(50% + .4px);
  width: 240px;
  height: 224px;
  transform: translate(-50%, var(--frame-ty, -50%));
}

.v4-prod-video {
  position: absolute;
  z-index: 10;
  bottom: var(--asset-b, 0px);
  left: var(--asset-l, 50%);
  width: var(--asset-w, 240px);
  height: var(--asset-h, 224px);
  max-width: none;
  object-fit: contain;
  transform: translate(-50%) scale(var(--asset-scale, 1));
  transform-origin: center bottom;
}

.v4-prod-video--fade {
  -webkit-mask-image: radial-gradient(ellipse at center, #000 68%, transparent 100%);
  mask-image: radial-gradient(ellipse at center, #000 68%, transparent 100%);
}

.v4-prod-mask {
  position: absolute;
  z-index: 1;
  bottom: var(--asset-b, 0px);
  left: var(--asset-l, 50%);
  width: 68px;
  height: var(--asset-h, 224px);
  transform: translate(130px);
  background: linear-gradient(197deg, #dee2e6 0% 19.327%, #d6dade 47.813%, #cdd1d5 56.259%, #cfd3d7 69.674%, #d3dadf 95%);
  pointer-events: none;
}

.v4-prod--serverless {
  --media-bg: #d7dde2;
  --frame-top: 50%;
  --frame-ty: -50%;
  --asset-w: 188px;
  --asset-h: 188px;
  --asset-b: 0px;
  --asset-l: 50%;
}

.v4-prod--job {
  --media-bg: #d5dce1;
  --frame-top: 76px;
  --frame-ty: 0;
  --asset-w: 264px;
  --asset-h: 264px;
  --asset-b: -32px;
  --asset-l: calc(50% - .2px);
}

.v4-prod--token {
  --media-bg: linear-gradient(91deg, #d9dde3 1.7%, #dde1e5 98.3%);
  --frame-top: 50%;
  --frame-ty: -50%;
  --asset-w: 280px;
  --asset-h: 280px;
  --asset-b: -77px;
  --asset-l: calc(50% - .4px);
}

.v4-prod--instance {
  --media-bg: #dbdfe3;
  --frame-top: 76px;
  --frame-ty: 0;
  --asset-w: 400px;
  --asset-h: 225px;
  --asset-b: -16px;
  --asset-l: calc(50% + .4px);
}

.v4-prod--metal {
  --media-bg: #d4dae0;
  --frame-top: 76px;
  --frame-ty: 0;
  --asset-w: 256px;
  --asset-h: 256px;
  --asset-b: -40px;
  --asset-l: calc(50% + .2px);
}

.v4-prod:focus-visible {
  border-radius: 24px;
  outline: 2px solid var(--focus-ring);
  outline-offset: 8px;
}

.v4-prod-inline {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-3);
}

.v4-prod-copy {
  display: none;
}

.v4-prod-copy.is-leaving {
  opacity: 0;
  transform: translateY(-10px);
}

.v4-prod-copy.is-entering {
  opacity: 0;
  transform: translateY(10px);
}

.v4-prod-action {
  display: flex;
  justify-content: center;
  margin-top: 24px;
}

@media (min-width: 768px) {
  .v4-prod-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    margin-top: 56px;
  }

  .v4-prod {
    grid-column: span 3;
  }

  .v4-prod:nth-child(n+3) {
    grid-column: span 2;
  }

  .v4-prod-media {
    height: 376px;
  }

  .v4-prod-mask {
    display: none;
  }

  .v4-prod:nth-child(-n+2) {
    --asset-scale: 1.12;
  }
}

@media (min-width: 1024px) {
  .v4-prod-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .v4-prod,
  .v4-prod:nth-child(n+3) {
    grid-column: span 1;
  }

  .v4-prod-media {
    height: min(376px, 31vw);
  }

  .v4-prod-inline {
    display: none;
  }

  .v4-prod-copy {
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 760px;
    min-height: 116px;
    margin: 48px auto 0;
    text-align: center;
    font-size: 18px;
    line-height: 1.8;
    color: var(--ink-3);
    white-space: pre-line;
    transition: opacity .35s var(--ease), transform .35s var(--ease);
  }
}

@media (min-width: 1280px) {
  .v4-prod-media {
    height: 376px;
  }
}

.v4-cases {
  position: relative;
  overflow: hidden;
  background: var(--bg);
}

.v4-cases::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(760px 420px at 82% 0%, var(--glow-peri), transparent 70%);
  pointer-events: none;
}

.v4-cases .container {
  position: relative;
  z-index: 1;
}

.v4-cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.v4-case {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 28px 28px 26px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  transition: border-color .3s var(--ease), background .3s var(--ease), box-shadow .3s var(--ease);
}

.v4-case:hover {
  background: var(--panel-hover);
  border-color: var(--accent-line);
  box-shadow: var(--shadow-lift);
}

.v4-case-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 28px;
}

.v4-case-logo {
  height: 28px;
  width: auto;
  max-width: 60%;
  object-fit: contain;
  object-position: left center;
}

.v4-case-arrow {
  flex-shrink: 0;
  color: var(--ink-3);
  transition: color .2s var(--ease), transform .2s var(--ease);
}

.v4-case:hover .v4-case-arrow {
  color: var(--accent-ink);
  transform: translate(2px, -2px);
}

.v4-case-stat {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink-1);
}

.v4-case-num {
  font-family: var(--font-mono);
  color: var(--accent-ink);
}

.v4-case-quote {
  position: relative;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

.v4-case-quote::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  border-radius: 2px;
  background: var(--accent-ink);
}

.v4-case-sign {
  margin-top: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-3);
}

.v4-metrics {
  position: relative;
  overflow: hidden;
}

.v4-metrics-inner {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.v4-metrics-title {
  font-size: clamp(20px, 3vw, 36px);
  line-height: 1.3;
  letter-spacing: .06em;
}

.v4-metrics-slogan {
  margin-top: clamp(24px, 4vh, 36px);
  font-size: clamp(15px, 1.6vw, 18px);
  letter-spacing: .08em;
  color: var(--accent-ink);
}

.v4-metrics-desc {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.9;
  letter-spacing: .04em;
  color: var(--ink-3);
}

.v4-metrics-cta {
  margin-top: clamp(24px, 4vh, 36px);
  align-self: flex-start;
}

.v4-net {
  display: block;
  width: 100%;
  max-width: 460px;
  margin-top: clamp(20px, 3vh, 32px);
}

.v4-net-svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.v4-net-svg text {
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: .04em;
  fill: var(--ink-2);
}

.v4-net-word {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .08em;
  fill: var(--ink-1);
}

.v4-net-chip {
  animation: v4-net-float 7s ease-in-out infinite;
}

.v4-net-chip:nth-of-type(2) {
  animation-delay: .9s;
}

.v4-net-chip:nth-of-type(3) {
  animation-delay: 1.8s;
}

.v4-net-chip:nth-of-type(4) {
  animation-delay: .45s;
}

.v4-net-chip:nth-of-type(5) {
  animation-delay: 1.35s;
}

.v4-net-guide {
  animation: v4-net-flow 26s linear infinite;
}

@keyframes v4-net-float {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-5px);
  }
}

@keyframes v4-net-flow {
  to {
    stroke-dashoffset: -220;
  }
}

.v4-net-list {
  display: none;
  flex-direction: column;
  gap: 10px;
  margin-top: clamp(20px, 3vh, 32px);
}

.v4-net-list li {
  padding: 11px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--mint);
  border-radius: 12px;
  background: var(--panel);
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink-2);
}

.v4-net-list .v4-net-list-core {
  border-left-color: var(--accent-ink);
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--ink-1);
}

@media (max-width: 639px) {
  .v4-net-svg {
    display: none;
  }

  .v4-net-list {
    display: flex;
  }
}

@media (prefers-reduced-motion: reduce) {
  .v4-net-chip,
  .v4-net-guide {
    animation: none;
  }

  .pc-bar,
  .pc-val {
    transition: none;
  }

  html.js .rv:not(.on):not(.rv-done) .pc-bar {
    transform: none;
  }

  html.js .rv:not(.on):not(.rv-done) .pc-val {
    opacity: 1;
    transform: none;
  }
}

.v4-mgroup-head {
  display: flex;
  align-items: center;
  gap: 16px;
}

.v4-mgroup + .v4-mgroup .v4-mgroup-head {
  margin-top: clamp(28px, 4vh, 48px);
}

.v4-mgroup-name {
  flex: none;
  font-size: clamp(16px, 2vw, 24px);
  font-weight: 700;
  color: var(--accent-ink);
}

.v4-mgroup-rule {
  flex: 1;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #32C8B3 0%, #BBFDE7 45.67%, #B3DAEF 69.71%, #B4BDFB 100%);
}

.v4-mgroup-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 56px;
  margin-top: 28px;
}

.v4-metric-k {
  font-size: 14px;
  color: var(--ink-3);
}

.v4-metric-v {
  margin-top: 10px;
  font-size: clamp(20px, 2.4vw, 30px);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}

.v4-mgroup-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 28px;
}

.v4-mgroup-item {
  font-size: clamp(17px, 1.8vw, 20px);
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink-3);
}

@media (min-width: 768px) {
  .v4-metrics-inner {
    flex-direction: row;
    align-items: flex-start;
    gap: 32px;
  }

  .v4-metrics-lead {
    flex: 0 0 42%;
  }

  .v4-metrics-data {
    flex: 1;
    min-width: 0;
  }

  .v4-metrics-cta {
    align-self: auto;
  }
}

.v4-contact {
  position: relative;
  overflow: hidden;
  background-color: var(--bg);
  background-image:
    radial-gradient(680px 420px at 18% 0%, var(--glow-mint), transparent 66%),
    radial-gradient(640px 480px at 84% 100%, var(--glow-peri), transparent 68%);
  text-align: center;
}

.v4-contact .container {
  position: relative;
  z-index: 1;
}

.v4-contact-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 860px;
  margin-inline: auto;
}

.v4-contact-title {
  margin-top: 18px;
  font-size: clamp(30px, 4.8vw, 56px);
  line-height: 1.22;
}

.v4-contact-line {
  display: block;
}

.v4-contact-grad {
  background: linear-gradient(96deg, var(--grad-a) 8%, var(--grad-b) 56%, var(--grad-c) 104%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.v4-contact-sub {
  max-width: 34em;
}

.v4-term {
  width: min(100%, 620px);
  margin-top: 42px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-deep);
  overflow: hidden;
  text-align: left;
}

.v4-term-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  background: var(--term-bar);
  border-bottom: 1px solid var(--line);
}

.v4-term-dots {
  display: inline-flex;
  gap: 7px;
}

.v4-term-dots i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.v4-term-dots i:nth-child(1) {
  background: #FF5F57;
}

.v4-term-dots i:nth-child(2) {
  background: #FEBC2E;
}

.v4-term-dots i:nth-child(3) {
  background: #28C840;
}

.v4-term-title {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--ink-3);
}

.v4-term-body {
  display: flex;
  flex-direction: column;
  gap: 13px;
  padding: 20px 22px 18px;
}

.v4-term-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
}

.v4-term-key {
  font-weight: 600;
  color: var(--ink-1);
}

.v4-term-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ink-2);
}

.v4-term-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--status-amber);
  animation: v4-amber-pulse 1.8s ease-out infinite;
}

@keyframes v4-amber-pulse {
  0% {
    box-shadow: 0 0 0 0 var(--status-amber-glow);
  }

  70%, 100% {
    box-shadow: 0 0 0 8px transparent;
  }
}

.v4-term-note {
  margin-top: 4px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 12.5px;
  color: var(--ink-3);
}

.v4-contact-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 40px;
}

.v4-contact-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 30px;
}

.v4-contact-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  font-size: 13px;
  color: var(--ink-2);
}

.v4-contact-chip::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
}

@media (max-width: 899px) {
  .v4-cases-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 599px) {
  .lc-foot {
    gap: 8px 18px;
  }

  .lc-f-note {
    margin-left: 0;
    width: 100%;
  }

  .v4-term-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lc-online::after,
  .lc-dot,
  .v4-term-dot {
    animation: none;
  }
}

/* ==== T6 动效 ==== */
body {
  overflow-x: hidden;
}

html.js .rv:not(.rv-done) {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
  transition-delay: var(--rv-delay, 0s);
}

html.js .rv.on:not(.rv-done) {
  opacity: 1;
  transform: none;
}

html.js .rv:focus-within:not(.rv-done) {
  opacity: 1;
  transform: none;
  transition: none;
}

.v4-bento > .rv:nth-child(2),
.v4-prod-grid > .rv:nth-child(2),
.v4-cases-grid > .rv:nth-child(2) {
  --rv-delay: .09s;
}

.v4-bento > .rv:nth-child(3),
.v4-prod-grid > .rv:nth-child(3),
.v4-cases-grid > .rv:nth-child(3) {
  --rv-delay: .18s;
}

.v4-bento > .rv:nth-child(4),
.v4-prod-grid > .rv:nth-child(4),
.v4-cases-grid > .rv:nth-child(4) {
  --rv-delay: .27s;
}

.v4-bento > .rv:nth-child(5),
.v4-prod-grid > .rv:nth-child(5) {
  --rv-delay: .36s;
}

.v4-metrics-inner > .rv:nth-child(2),
.v4-metrics-data > .rv:nth-child(2) {
  --rv-delay: .1s;
}

.v4-metrics-data > .rv:nth-child(3) {
  --rv-delay: .2s;
}

.v4-contact-inner > .rv:nth-child(2) {
  --rv-delay: .07s;
}

.v4-contact-inner > .rv:nth-child(3) {
  --rv-delay: .14s;
}

@media (prefers-reduced-motion: reduce) {
  html.js .rv:not(.rv-done),
  html.js .rv.on:not(.rv-done),
  html.js .rv:focus-within:not(.rv-done) {
    opacity: 1;
    transform: none;
    transition: none;
    animation: none;
  }
}

.nav-link {
  position: relative;
}

.nav-link.active {
  color: var(--ink-1);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -7px;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-ink);
  transform: translateX(-50%);
}

.drawer-link.active {
  color: var(--accent-ink);
}

@media (max-width: 1023px) {
  html.no-js .burger,
  html.no-js .header-actions {
    display: none;
  }
}

@media (max-width: 767px) {
  html.no-js .header-inner {
    grid-template-columns: 1fr;
    height: auto;
    padding-block: 14px;
    row-gap: 10px;
    justify-items: center;
  }

  html.no-js .header-brand,
  html.no-js .nav {
    grid-column: auto;
  }

  html.no-js .nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 18px;
  }

  html.no-js .v4-hero {
    padding-top: 128px;
  }
}