:root {
  /* 站点变量统一控制颜色、间距、圆角和内容宽度，避免页面散落一次性数值。 */
  --page-bg: #f6f7fb;
  --surface: #ffffff;
  --surface-soft: #f0f2f8;
  --ink: #171923;
  --muted: #626878;
  --line: #dfe3ed;
  --primary: #6950e8;
  --primary-dark: #4632b7;
  --primary-soft: #eeeafd;
  --orange: #e76f18;
  --orange-soft: #fff0e4;
  --green: #148965;
  --green-soft: #e5f7f0;
  --blue: #2468c9;
  --blue-soft: #e8f1ff;
  --rose: #c94770;
  --rose-soft: #fdeaf0;
  --cyan: #167e95;
  --cyan-soft: #e4f6fa;
  --dark: #20232d;
  --dark-muted: #c9ceda;
  --shadow: 0 16px 42px rgba(29, 35, 52, 0.08);
  --radius: 8px;
  --content: 1280px;
  --section-space: clamp(58px, 8vw, 96px);
  --page-gutter: clamp(20px, 5vw, 64px);
}

/* 全局盒模型和排版确保静态页面在桌面与移动端保持稳定。 */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: var(--page-bg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}

body.fullpage-active {
  overflow: hidden;
}

body.fullpage-active .site-swiper {
  /* 导航悬浮覆盖，首屏真正占满可视高度。 */
  height: 100svh;
}

img {
  max-width: 100%;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

/* 顶部感应区：鼠标移到屏幕最上沿时唤出导航。 */
.site-header-hotzone {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  height: 18px;
}

/* 固定悬浮导航：默认上移隐藏，悬停顶部 / 滚动上滑 / 聚焦时滑出。 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: 0 var(--page-gutter);
  background: rgba(5, 9, 20, 0.42);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px) saturate(1.25);
  -webkit-backdrop-filter: blur(18px) saturate(1.25);
  transform: translateY(-110%);
  opacity: 0;
  pointer-events: none;
  transition:
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 240ms ease,
    background-color 200ms ease,
    border-color 200ms ease;
}

.site-header.is-visible,
.site-header:focus-within {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
  background: rgba(5, 9, 20, 0.72);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

body:has(#home.swiper-slide-active) .site-header.is-visible {
  background: rgba(5, 9, 20, 0.38);
  border-bottom-color: rgba(255, 255, 255, 0.05);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-weight: 800;
}

.brand__mark {
  width: 58px;
  height: 38px;
  object-fit: contain;
  border-radius: 0;
}

.brand__text {
  color: #ffffff;
  font-size: 18px;
  letter-spacing: 0;
  white-space: nowrap;
}

.nav {
  display: flex;
  gap: clamp(14px, 3vw, 30px);
  color: rgba(255, 255, 255, 0.72);
  font-size: 15px;
  font-weight: 700;
}

.nav a {
  padding: 20px 0 18px;
  border-bottom: 2px solid transparent;
  transition: color 160ms ease, border-color 160ms ease;
}

.nav a:hover,
.nav a:focus-visible {
  color: #ffffff;
}

body:has(#home.swiper-slide-active) .nav a[href="#home"],
body:has(#products.swiper-slide-active) .nav a[href="#products"],
body:has(#download.swiper-slide-active) .nav a[href="#download"] {
  color: #ffffff;
  border-bottom-color: rgba(168, 148, 255, 0.95);
}

/* 脚本为桌面分屏和移动长页面统一写入当前栏目。 */
.nav a[aria-current="page"] {
  color: #ffffff;
  border-bottom-color: rgba(168, 148, 255, 0.95);
}

/* 全屏沉浸首屏：内容铺满可视区，导航不占文档流高度。 */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100svh;
  overflow: hidden;
  padding: clamp(72px, 10vh, 120px) var(--page-gutter) 56px;
  isolation: isolate;
  color: #ffffff;
  background: #050914;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: -3;
  background-color: #050914;
  background-image:
    radial-gradient(circle at 74% 42%, rgba(105, 80, 232, 0.55), transparent 28%),
    radial-gradient(circle at 88% 22%, rgba(36, 104, 201, 0.32), transparent 24%),
    radial-gradient(circle at 18% 78%, rgba(22, 131, 255, 0.18), transparent 26%),
    url("screenshots/app-live-showcase.webp");
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  /* 截图已提清晰度；背景仍压暗，但比原先亮约 30%，保证机位轮廓可读。 */
  filter: brightness(0.44) saturate(0.95) contrast(1.02);
  transform: scale(1.03);
  animation: hero-media-drift 18s ease-in-out infinite alternate;
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: -2;
  /* 左侧给标题留足暗色阅读区，右侧保留 App 视觉和发光层次。 */
  background:
    linear-gradient(90deg, rgba(3, 6, 14, 0.98) 0%, rgba(3, 6, 14, 0.94) 39%, rgba(3, 6, 14, 0.72) 62%, rgba(3, 6, 14, 0.38) 100%),
    linear-gradient(180deg, rgba(3, 6, 14, 0.18) 0%, rgba(3, 6, 14, 0.52) 58%, rgba(3, 6, 14, 0.88) 100%);
  content: "";
}

.hero::after {
  position: absolute;
  inset: auto 0 0;
  z-index: -1;
  height: 140px;
  background: linear-gradient(180deg, rgba(5, 9, 20, 0) 0%, rgba(5, 9, 20, 0.72) 100%);
  content: "";
  pointer-events: none;
}

.hero__shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(360px, 0.92fr) minmax(420px, 1.08fr);
  gap: clamp(38px, 6vw, 88px);
  align-items: center;
  flex: 1 1 auto;
  width: min(var(--content), 100%);
  margin: 0 auto;
}

.hero__content {
  align-self: center;
  width: min(720px, 100%);
  padding-bottom: 0;
  text-align: center;
  animation: hero-rise 780ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero__eyebrow,
.section__kicker {
  margin: 0 0 12px;
  color: var(--primary-dark);
  font-size: 14px;
  font-weight: 800;
}

/* 副标去掉胶囊，改成大厂落地页常见的细字距 eyebrow。 */
.hero__eyebrow {
  margin: 0 0 20px;
  color: rgba(198, 188, 255, 0.92);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

/* 大字避免被裁：中文全字身很占纵向空间，line-height 太紧会切掉笔画底部；
   保留视觉紧凑的同时改为 1.05，并加上下内边距和溢出可见，drop-shadow 也不会被裁。 */
.hero h1 {
  margin: 0;
  padding: 0.08em 0.04em 0.16em;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: clamp(120px, 18vw, 220px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: 0.12em;
  background: linear-gradient(120deg, #ffffff 0%, #ddd6ff 38%, #8eb7ff 72%, #ffffff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 22px 60px rgba(105, 80, 232, 0.4));
  overflow: visible;
}

/* 口号单行不折行，居中贴在品牌名下方（大厂落地页常见写法）。 */
.hero__lead {
  width: max-content;
  max-width: none;
  margin: 22px auto 0;
  color: rgba(255, 255, 255, 0.96);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: clamp(22px, 2.8vw, 40px);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: 0.12em;
  white-space: nowrap;
  text-wrap: nowrap;
}

.hero__summary {
  max-width: 540px;
  margin: 20px auto 0;
  color: rgba(226, 232, 240, 0.72);
  font-size: 18px;
  line-height: 1.7;
  letter-spacing: 0.02em;
}

/* Apple 产品页下载行：横向图标+文字，细竖线分隔，零阴影零圆角零背景。 */
.hero-platforms {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0;
  width: min(1080px, 100%);
  margin: auto auto 0;
  padding: 0;
  list-style: none;
  background: transparent;
  border: 0;
  box-shadow: none;
  animation: hero-rise 900ms 80ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero-platforms li {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0;
  padding: 12px clamp(22px, 3.6vw, 42px);
  color: rgba(255, 255, 255, 0.9);
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  transition: color 160ms ease, opacity 160ms ease;
}

/* Android 等可点平台入口：继承横排样式，不额外加盒子。 */
.hero-platforms .hero-platform-link,
.download-platforms .hero-platform-link {
  display: flex;
  align-items: center;
  gap: 14px;
  color: inherit;
  text-decoration: none;
}

.hero-platforms li + li {
  border-left: 1px solid rgba(255, 255, 255, 0.16);
}

.hero-platforms img {
  width: 36px;
  height: 36px;
  opacity: 0.9;
  filter: invert(1) opacity(0.9);
  transition: opacity 160ms ease, transform 160ms ease;
}

.hero-platforms div {
  display: grid;
  gap: 4px;
  line-height: 1.2;
}

.hero-platforms span {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.hero-platforms small {
  color: rgba(226, 232, 240, 0.5);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

/* 已上线：聚焦高亮；待上线：整体灰色弱化 */
.hero-platforms li.is-live {
  color: #ffffff;
}

.hero-platforms li.is-live small {
  color: #86efac;
  font-weight: 700;
}

.hero-platforms li.is-live img {
  opacity: 1;
  filter: invert(1) opacity(1);
}

.hero-platforms li.is-soon {
  color: rgba(148, 163, 184, 0.55);
  cursor: default;
  pointer-events: none;
}

.hero-platforms li.is-soon small {
  color: rgba(148, 163, 184, 0.45);
}

.hero-platforms li.is-soon img {
  opacity: 0.38;
  filter: invert(1) opacity(0.38) grayscale(1);
}

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .hero-platforms li.is-live:hover {
    color: #ffffff;
  }

  .hero-platforms li.is-live:hover img {
    opacity: 1;
    filter: invert(1) opacity(1);
    transform: translateY(-1px);
  }
}

/* 下滑提示：极简文字 + 箭头，无胶囊阴影。稍稍上移不贴底。 */
.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: clamp(56px, 8vh, 96px);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  width: max-content;
  margin: 0;
  padding: 0;
  color: rgba(226, 232, 240, 0.62);
  background: transparent;
  border: 0;
  box-shadow: none;
  text-decoration: none;
  transform: translateX(-50%);
}

.hero-scroll__label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: rgba(226, 232, 240, 0.55);
}

.hero-scroll__chevron {
  display: grid;
  place-items: center;
  color: rgba(216, 209, 255, 0.78);
  animation: hero-scroll-chevron 1.7s ease-in-out infinite;
}

.hero-scroll:hover,
.hero-scroll:focus-visible {
  color: #ffffff;
}

.hero-scroll:hover .hero-scroll__label,
.hero-scroll:focus-visible .hero-scroll__label {
  color: rgba(255, 255, 255, 0.88);
}

.hero-scroll:focus-visible {
  outline: 0;
}

@keyframes hero-scroll-chevron {
  0%,
  100% {
    opacity: 0.35;
    transform: translateY(0);
  }

  50% {
    opacity: 1;
    transform: translateY(4px);
  }
}

@keyframes hero-rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

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

@keyframes hero-media-drift {
  from {
    transform: scale(1.03) translate3d(0, 0, 0);
  }

  to {
    transform: scale(1.06) translate3d(-1.2%, -0.8%, 0);
  }
}

@keyframes hero-orb-breathe {
  0%,
  100% {
    transform: translate(-50%, -50%) rotate(-18deg) scale(1);
    box-shadow:
      0 0 0 28px rgba(22, 131, 255, 0.04),
      0 0 88px rgba(22, 131, 255, 0.38);
  }

  50% {
    transform: translate(-50%, -54%) rotate(-14deg) scale(1.04);
    box-shadow:
      0 0 0 40px rgba(22, 131, 255, 0.07),
      0 0 130px rgba(105, 80, 232, 0.55);
  }
}

/* 三张预览卡各自漂浮轨迹不同，幅度加大，避免只上下抖 4px 看不出动效。 */
@keyframes hero-shot-float-a {
  0%,
  100% {
    transform: translate3d(0, 0, 0) rotate(-1deg);
  }

  50% {
    transform: translate3d(14px, -28px, 0) rotate(2deg);
  }
}

@keyframes hero-shot-float-b {
  0%,
  100% {
    transform: translate3d(0, 0, 0) rotate(1deg);
  }

  50% {
    transform: translate3d(-18px, -24px, 0) rotate(-2.2deg);
  }
}

@keyframes hero-shot-float-c {
  0%,
  100% {
    transform: translate3d(0, 0, 0) rotate(0deg);
  }

  33% {
    transform: translate3d(-16px, -22px, 0) rotate(1.6deg);
  }

  66% {
    transform: translate3d(12px, -10px, 0) rotate(-1.4deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__media,
  .hero__content,
  .hero-platforms,
  .hero__orb,
  .hero__shot,
  .hero-scroll__chevron,
  .site-header {
    animation: none !important;
    transition: none !important;
  }
}

.hero__visual {
  position: relative;
  min-height: 520px;
  padding-bottom: 0;
  animation: hero-rise 860ms 40ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero__orb {
  position: absolute;
  left: 50%;
  top: 48%;
  display: grid;
  width: min(290px, 42vw);
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid rgba(77, 163, 255, 0.32);
  border-radius: 42%;
  background:
    radial-gradient(circle at 50% 50%, rgba(36, 104, 201, 0.55), rgba(105, 80, 232, 0.16) 45%, transparent 72%),
    linear-gradient(135deg, rgba(22, 131, 255, 0.24), rgba(105, 80, 232, 0.08));
  box-shadow:
    0 0 0 28px rgba(22, 131, 255, 0.04),
    0 0 88px rgba(22, 131, 255, 0.42);
  transform: translate(-50%, -50%) rotate(-18deg);
  animation: hero-orb-breathe 4.8s ease-in-out infinite;
  will-change: transform;
}

.hero__orb img {
  width: 42%;
  border-radius: 28%;
  filter: drop-shadow(0 18px 34px rgba(22, 131, 255, 0.38));
  transform: rotate(18deg);
}

.hero__shot {
  position: absolute;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(88, 166, 255, 0.55);
  border-radius: 18px;
  background: rgba(9, 15, 31, 0.76);
  box-shadow:
    0 24px 70px rgba(0, 0, 0, 0.32),
    0 0 0 1px rgba(255, 255, 255, 0.04) inset;
  backdrop-filter: blur(2px);
  will-change: transform;
}

.hero__shot figcaption {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 2;
  padding: 6px 10px;
  border: 0;
  border-radius: 0;
  color: #ffffff;
  background: rgba(8, 12, 24, 0.62);
  box-shadow: none;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.hero__shot img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(0.96);
}

.hero__shot--one {
  left: 8%;
  top: 18%;
  width: 280px;
  height: 168px;
  animation: hero-shot-float-a 5.2s ease-in-out infinite;
}

.hero__shot--two {
  right: 6%;
  top: 28%;
  width: 260px;
  height: 180px;
  border-color: rgba(255, 141, 71, 0.74);
  animation: hero-shot-float-b 6s 0.35s ease-in-out infinite;
}

/* 已移除「爽爽公寓」第三张机位截图 */
.hero__shot--three {
  display: none !important;
}

/* 下载页直接使用品牌标识和平台状态，避免空洞的深色营销页构图。 */
.section--download {
  color: var(--ink);
  background: var(--surface);
}

/* 下载区整块垂直堆叠并水平居中，贴近 Apple / 大厂下载页构图。 */
.download-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(36px, 5vw, 56px);
  text-align: center;
}

.download-intro {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 36rem;
}

.download-logo {
  display: block;
  width: min(160px, 42vw);
  margin: 0 auto 22px;
}

.download-intro h2 {
  margin: 0;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 1.12;
}

.download-intro p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.download-web {
  display: inline-flex;
  margin-top: 18px;
  color: var(--primary-dark);
  font-size: 15px;
  font-weight: 800;
  border-bottom: 2px solid var(--primary);
}

.download-platforms {
  display: flex;
  justify-content: center;
  align-items: stretch;
  width: min(960px, 100%);
  margin: 0 auto;
  padding: 36px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  list-style: none;
}

.download-platforms li {
  display: flex;
  flex: 1 1 0;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-width: 0;
  padding: 0 24px;
  border-left: 1px solid var(--line);
  text-align: left;
}

.download-platforms li:first-child {
  border-left: 0;
}

.download-platforms img {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  opacity: 0.62;
}

.download-platforms span {
  display: grid;
  min-width: 0;
  line-height: 1.3;
}

.download-platforms strong {
  color: var(--ink);
  font-size: 22px;
  white-space: nowrap;
}

.download-platforms small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.download-platforms li.is-live strong {
  color: var(--ink);
}

.download-platforms li.is-live small {
  color: #15803d;
}

.download-platforms li.is-live img {
  opacity: 0.92;
  filter: none;
}

.download-platforms li.is-soon {
  opacity: 0.42;
  cursor: default;
  pointer-events: none;
  filter: grayscale(1);
}

.download-platforms li.is-soon strong,
.download-platforms li.is-soon small {
  color: #94a3b8;
}

.download-platforms li.is-soon img {
  opacity: 0.5;
}

/* 下载区在中等宽度改为两列；首屏四端保持单行，避免再被裁成半截。 */
@media (max-width: 1200px) {
  .download-platforms {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 0;
  }

  .download-platforms li {
    min-height: 64px;
  }

  .download-platforms li:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }

  .download-platforms li:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

}

/* 文字按钮仅用于明确命令，主次样式对应页面跳转优先级。 */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 112px;
  min-height: 46px;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 800;
}

.button--primary {
  color: #ffffff;
  background: var(--primary);
}

.button--primary:hover,
.button--primary:focus-visible {
  background: var(--primary-dark);
}

.button--secondary {
  color: var(--primary-dark);
  background: rgba(255, 255, 255, 0.9);
  border-color: var(--line);
}

.button--secondary:hover,
.button--secondary:focus-visible {
  border-color: var(--primary);
}

/* 页面各区块使用全宽色带，避免区块本身做成漂浮卡片。 */
.section {
  scroll-margin-top: 64px;
  padding: var(--section-space) var(--page-gutter);
  background: var(--surface);
}

.section--soft {
  background: var(--surface-soft);
}

.section--dark {
  color: #ffffff;
  background: var(--dark);
}

.section__inner {
  width: min(var(--content), 100%);
  margin: 0 auto;
}

.section__heading {
  max-width: 700px;
  margin-bottom: 32px;
}

.section__heading--wide {
  max-width: 860px;
}

.section__heading p:not(.section__kicker) {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 17px;
}

.section h2 {
  margin: 0;
  font-size: clamp(30px, 5vw, 50px);
  line-height: 1.16;
  letter-spacing: 0;
}

.section__action {
  margin-top: 28px;
  text-align: center;
}

/* 功能卡展示六类稳定业务入口，图标来自 Tabler Icons 的 MIT 授权资源。 */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.feature-card {
  min-height: 176px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 14px 36px rgba(29, 35, 52, 0.06);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.feature-card__icon {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: var(--radius);
}

.feature-card__icon img {
  width: 24px;
  height: 24px;
}

.feature-card__icon--violet {
  color: var(--primary);
  background: var(--primary-soft);
}

.feature-card__icon--violet img {
  filter: invert(36%) sepia(74%) saturate(2050%) hue-rotate(231deg) brightness(91%) contrast(99%);
}

.feature-card__icon--green {
  color: var(--green);
  background: var(--green-soft);
}

.feature-card__icon--green img {
  filter: invert(43%) sepia(45%) saturate(940%) hue-rotate(112deg) brightness(88%) contrast(91%);
}

.feature-card__icon--orange {
  color: var(--orange);
  background: var(--orange-soft);
}

.feature-card__icon--orange img {
  filter: invert(46%) sepia(96%) saturate(1490%) hue-rotate(357deg) brightness(94%) contrast(88%);
}

.feature-card__icon--blue {
  color: var(--blue);
  background: var(--blue-soft);
}

.feature-card__icon--blue img {
  filter: invert(36%) sepia(83%) saturate(1167%) hue-rotate(184deg) brightness(87%) contrast(91%);
}

.feature-card__icon--rose {
  color: var(--rose);
  background: var(--rose-soft);
}

.feature-card__icon--rose img {
  filter: invert(41%) sepia(40%) saturate(1562%) hue-rotate(297deg) brightness(88%) contrast(87%);
}

.feature-card__icon--cyan {
  color: var(--cyan);
  background: var(--cyan-soft);
}

.feature-card__icon--cyan img {
  filter: invert(42%) sepia(39%) saturate(1180%) hue-rotate(145deg) brightness(90%) contrast(89%);
}

.feature-card h3 {
  margin: 20px 0 6px;
  font-size: 21px;
  line-height: 1.3;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  font-weight: 650;
}

/* 陪玩名单以头像、昵称和服务记录为主，减少营销包装感。 */
.companion-heading {
  margin-bottom: 16px;
}

.service-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 12px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.service-strip a {
  display: grid;
  gap: 2px;
  min-width: 0;
  padding: 12px 18px;
  border-left: 1px solid var(--line);
}

.service-strip a:first-child {
  padding-left: 0;
  border-left: 0;
}

.service-strip span,
.service-strip small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.service-strip span {
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
}

.service-strip strong {
  color: var(--primary-dark);
  font-size: 20px;
  line-height: 1.2;
}

.service-strip small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* App 挑选达人：双列手机列表行，头像方图 + 文案 + 右侧价/查看 */
.companion-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 28px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 4px 0 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
}

.companion-card {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  align-items: center;
  min-width: 0;
  gap: 12px 14px;
  margin: 0;
  padding: 16px 18px;
  background: #fff;
  border: 0;
  border-bottom: 1px solid #eef0f5;
  border-radius: 0;
  box-shadow: none;
  transition: background 160ms ease;
}

.companion-card:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.companion-card__avatar {
  position: relative;
  flex: 0 0 72px;
  width: 72px;
  height: 72px;
}

.companion-card__avatar img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 0;
  border-radius: 12px;
  box-shadow: none;
  background: #f1f5f9;
}

.companion-card__online {
  position: absolute;
  right: 2px;
  bottom: 2px;
  width: 12px;
  height: 12px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: #22c55e;
}

.companion-card__main {
  min-width: 0;
}

.companion-card h3 {
  margin: 0;
  overflow: hidden;
  color: #0f172a;
  font-size: 16px;
  font-weight: 750;
  line-height: 1.3;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.companion-card__bio {
  margin: 4px 0 0;
  overflow: hidden;
  color: #94a3b8;
  font-size: 13px;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.companion-card__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 6px 0 0;
  color: #64748b;
  font-size: 12px;
  font-weight: 650;
}

.companion-card__stats strong {
  color: #334155;
  font-weight: 750;
}

.companion-card__aside {
  display: grid;
  justify-items: end;
  align-content: center;
  gap: 8px;
  min-width: 88px;
}

.companion-card__price {
  margin: 0;
  color: #ef4444;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.1;
  white-space: nowrap;
}

.companion-card__price strong {
  font-size: 20px;
  font-weight: 800;
}

.companion-card__price small {
  color: #f87171;
  font-size: 12px;
  font-weight: 650;
}

.companion-card__order {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  min-height: 32px;
  padding: 0 14px;
  border: 0;
  border-radius: 999px;
  background: #ece7ff;
  color: var(--primary-dark, #5b3fd6);
  font-size: 13px;
  font-weight: 750;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease;
}

.companion-card__order:hover {
  background: var(--primary, #6950e8);
  color: #fff;
}

/* 更新记录：对接后台已发布版本 */
.updates-layout {
  max-width: 960px;
  margin: 0 auto;
}

.updates-latest {
  display: grid;
  gap: 12px;
  margin: 0 0 22px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
}

.updates-latest__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
}

.updates-latest__badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  background: #dcfce7;
  color: #15803d;
  font-size: 12px;
  font-weight: 800;
}

.updates-latest__badge.is-offline {
  background: #ffedd5;
  color: #b45309;
}

.updates-latest__meta strong {
  color: var(--ink);
  font-size: 22px;
  font-weight: 800;
}

.updates-latest__meta small {
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.updates-latest__notes {
  margin: 0;
  color: #475569;
  font-size: 15px;
  line-height: 1.6;
  white-space: pre-wrap;
}

.updates-latest__download {
  justify-self: start;
  min-width: 140px;
}

.updates-table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
}

.updates-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

.updates-table th,
.updates-table td {
  padding: 14px 16px;
  border-bottom: 1px solid #eef0f5;
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}

.updates-table th {
  color: #64748b;
  background: #f8fafc;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.updates-table tr:last-child td {
  border-bottom: 0;
}

.updates-table__ver {
  color: var(--ink);
  font-weight: 800;
  white-space: nowrap;
}

.updates-table__notes {
  color: #475569;
  line-height: 1.5;
  white-space: pre-wrap;
}

.updates-table__link {
  color: var(--primary-dark, #5b3fd6);
  font-weight: 750;
  text-decoration: none;
  white-space: nowrap;
}

.updates-table__link:hover {
  text-decoration: underline;
}

.companion-section__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.companion-section__footer a {
  color: var(--primary-dark);
}

/* 下单弹窗只做跳转确认，不在官网里承接支付。 */
.order-dialog {
  width: min(480px, calc(100% - 32px));
  max-width: none;
  margin: auto;
  padding: 0;
  color: var(--ink);
  background: var(--surface);
  border: 0;
  border-radius: var(--radius);
  box-shadow: 0 24px 80px rgba(23, 25, 35, 0.28);
}

.order-dialog::backdrop {
  background: rgba(23, 25, 35, 0.62);
}

.order-dialog__panel {
  position: relative;
  padding: 32px;
}

.order-dialog__close {
  position: absolute;
  top: 16px;
  right: 16px;
  display: grid;
  width: 40px;
  height: 40px;
  padding: 0;
  place-items: center;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}

.order-dialog__close img {
  width: 20px;
  height: 20px;
}

.order-dialog h2 {
  max-width: 360px;
  margin: 0;
  padding-right: 36px;
  font-size: 28px;
  line-height: 1.3;
}

.order-dialog p:not(.section__kicker) {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.order-dialog p strong {
  color: var(--ink);
}

.order-dialog__actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 28px;
}

/* 流程使用连续时间线，不再把每一步包装成相同卡片。 */
.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  column-gap: 24px;
  row-gap: 30px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.flow-steps li {
  min-height: 0;
  padding: 18px 0 0;
  background: transparent;
  border: 0;
  border-top: 2px solid var(--line);
}

/* 四组细色线表达进入、选择、下单和完成阶段，不增加额外说明文字。 */
.flow-steps li:nth-child(1),
.flow-steps li:nth-child(2) {
  border-top-color: var(--primary);
}

.flow-steps li:nth-child(3),
.flow-steps li:nth-child(4) {
  border-top-color: var(--blue);
}

.flow-steps li:nth-child(5),
.flow-steps li:nth-child(6) {
  border-top-color: var(--orange);
}

.flow-steps li:nth-child(7),
.flow-steps li:nth-child(8) {
  border-top-color: var(--green);
}

.flow-steps li > span {
  color: var(--primary);
  font-size: 14px;
  font-weight: 800;
}

.flow-steps li:nth-child(3) > span,
.flow-steps li:nth-child(4) > span {
  color: var(--blue);
}

.flow-steps li:nth-child(5) > span,
.flow-steps li:nth-child(6) > span {
  color: var(--orange);
}

.flow-steps li:nth-child(7) > span,
.flow-steps li:nth-child(8) > span {
  color: var(--green);
}

.flow-steps h3 {
  margin: 12px 0 5px;
  font-size: 19px;
}

.flow-steps p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* 应用页面直接铺满整屏，不再放进带边框的截图卡片。 */
.app-showcase {
  min-height: calc(100svh - 70px);
  overflow: hidden;
  background: #09090d;
}

.app-wall {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  min-height: calc(100svh - 70px);
}

.app-frame {
  position: relative;
  min-width: 0;
  min-height: 0;
  margin: 0;
  overflow: hidden;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
}

.app-frame:last-child {
  border-right: 0;
}

.app-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.app-frame figcaption {
  position: absolute;
  left: 18px;
  bottom: 18px;
  display: grid;
  padding: 8px 12px;
  color: #ffffff;
  background: rgba(9, 9, 13, 0.82);
  border-radius: 4px;
  line-height: 1.35;
}

.app-frame figcaption strong {
  font-size: 15px;
}

.app-frame figcaption span {
  color: #d7dae3;
  font-size: 12px;
}

/* 深色信息区使用两栏排布，减少重复卡片层级。 */
.security-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(32px, 6vw, 72px);
}

.section--dark .section__kicker {
  color: #cfc7ff;
}

.section--dark .section__heading p {
  color: var(--dark-muted);
}

.security-list {
  display: grid;
  gap: 0;
}

.security-list article {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.security-list article:first-child {
  padding-top: 4px;
}

.security-list img {
  width: 28px;
  height: 28px;
  padding: 2px;
  filter: invert(89%) sepia(12%) saturate(554%) hue-rotate(202deg) brightness(102%) contrast(101%);
}

.security-list h3 {
  margin: 0 0 4px;
  font-size: 19px;
}

.security-list p {
  margin: 0;
  color: var(--dark-muted);
  font-size: 15px;
}

/* 企业信息用定义列表呈现，字段和值在窄屏时自动改为上下排列。 */
.company {
  display: grid;
  grid-template-columns: minmax(270px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(32px, 6vw, 70px);
}

/* 固定公司全称的自然中文断行，避免在“有限公司”中间折断。 */
.company > .section__heading h2 {
  max-width: 8em;
}

.company-list {
  display: grid;
  gap: 0;
  margin: 0;
}

.company-list div {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 18px;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.company-list dt {
  color: var(--muted);
  font-size: 14px;
  font-weight: 750;
}

.company-list dd {
  margin: 0;
  overflow-wrap: anywhere;
  font-size: 15px;
  font-weight: 750;
}

.company-list a {
  color: var(--primary-dark);
}

/* 页脚只保留版权、备案状态和长期有效的服务入口。 */
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 28px var(--page-gutter);
  color: var(--muted);
  background: #ffffff;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.site-footer strong {
  color: var(--ink);
  font-size: 16px;
}

.site-footer p {
  margin: 2px 0 0;
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  justify-content: flex-end;
}

.site-footer a {
  color: var(--primary-dark);
  font-weight: 750;
}

/* 下载页底部版权条：矮高度、贴底，承接原「关于我们」里的主体与备案信息。 */
.download-footer {
  width: min(var(--content), 100%);
  margin: clamp(18px, 3vh, 28px) auto 0;
  padding: 10px 0 0;
  background: transparent;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.download-footer strong {
  font-size: 14px;
}

.download-footer p {
  margin: 0;
}

.download-footer p a {
  color: inherit;
  font-weight: 650;
}

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  .feature-card:hover {
    border-color: rgba(105, 80, 232, 0.34);
    box-shadow: 0 18px 42px rgba(29, 35, 52, 0.1);
    transform: translateY(-4px);
  }

  .companion-card:hover {
    background: #fafbff;
  }

}

/* 法律页面使用统一正文宽度，列表适合连续阅读和打印。 */
.legal {
  padding: var(--section-space) var(--page-gutter);
  background: var(--surface-soft);
}

.legal__content {
  width: min(900px, 100%);
  margin: 0 auto;
  padding: clamp(28px, 5vw, 50px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.legal__content h1 {
  margin: 0 0 18px;
  font-size: clamp(32px, 6vw, 50px);
  line-height: 1.16;
  letter-spacing: 0;
}

.legal__content h2 {
  margin: 34px 0 10px;
  font-size: 22px;
  letter-spacing: 0;
}

.legal__content p,
.legal__content li {
  color: var(--muted);
  font-size: 16px;
}

.legal__content p {
  margin: 0 0 14px;
}

.legal__content ul,
.legal__content ol {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding-left: 24px;
}

.legal__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 14px;
}

/* 独立流程页用于展示完整应用运行路径。 */
.flow-page {
  padding: clamp(34px, 6vw, 72px) var(--page-gutter);
  background: var(--surface-soft);
}

.flow-poster {
  width: min(1240px, 100%);
  margin: 0 auto;
  padding: clamp(28px, 5vw, 54px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.flow-poster__header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 22px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.flow-poster__header h1 {
  margin: 0;
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1.12;
}

.flow-poster__header p {
  max-width: 760px;
  margin: 12px 0 0;
  color: var(--muted);
}

.flow-poster__meta {
  display: grid;
  align-content: start;
  gap: 6px;
  min-width: 190px;
  color: var(--muted);
  font-size: 13px;
  text-align: right;
}

.flow-poster__meta strong {
  color: var(--ink);
  font-size: 15px;
}

/* 流程节点按阶段、分支和异常处理分组，箭头仅表达顺序关系。 */
.flow-core {
  display: grid;
  gap: 16px;
  padding-top: 28px;
}

.flow-node {
  padding: 18px 20px;
  background: var(--surface-soft);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.flow-node--start {
  background: var(--green-soft);
  border-left-color: var(--green);
}

.flow-node--end {
  background: var(--blue-soft);
  border-left-color: var(--blue);
}

.flow-node h2,
.flow-node h3 {
  margin: 0;
}

.flow-node h2 {
  font-size: 22px;
}

.flow-node h3 {
  font-size: 18px;
}

.flow-node p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.flow-arrow {
  color: var(--primary);
  font-size: 24px;
  font-weight: 800;
  line-height: 1;
  text-align: center;
}

.flow-stage-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  margin-top: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.flow-stage-title h2 {
  margin: 0;
  font-size: 24px;
}

.flow-stage-title span {
  color: var(--muted);
  font-size: 13px;
}

.flow-lanes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.flow-lane {
  padding: 22px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.flow-lane--order {
  border-top: 4px solid var(--primary);
}

.flow-lane--voice {
  border-top: 4px solid var(--green);
}

.flow-lane--community {
  border-top: 4px solid var(--orange);
}

.flow-lane--manor {
  border-top: 4px solid var(--rose);
}

.flow-lane h3 {
  margin: 0 0 14px;
  font-size: 20px;
}

.flow-lane ol {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.flow-lane li {
  position: relative;
  padding: 11px 0 11px 36px;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.flow-lane li:last-child {
  border-bottom: 0;
}

.flow-lane li span {
  position: absolute;
  top: 10px;
  left: 0;
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  color: #ffffff;
  background: var(--primary);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 800;
}

.flow-lane--voice li span {
  background: var(--green);
}

.flow-lane--community li span {
  background: var(--orange);
}

.flow-lane--manor li span {
  background: var(--rose);
}

.flow-support {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.flow-support article {
  min-height: 150px;
  padding: 20px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.flow-support h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.flow-support p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.flow-download {
  display: flex;
  justify-content: center;
  margin-top: 24px;
}

/* 桌面端分屏由 MIT License 的 Swiper 负责，本站只定义内容尺寸和视觉样式。 */
@media (min-width: 961px) and (min-height: 680px) {
  .site-swiper {
    width: 100%;
    height: 100svh;
    overflow: hidden;
  }

  .site-swiper > .swiper-wrapper {
    display: flex;
    height: 100%;
  }

  .site-swiper .swiper-slide {
    display: grid;
    height: 100%;
    min-height: 0;
    align-items: center;
    overflow-y: auto;
    padding-top: clamp(28px, 5vh, 48px);
    padding-bottom: clamp(28px, 5vh, 48px);
  }

  .site-swiper .hero.swiper-slide {
    padding-top: clamp(56px, 8vh, 88px);
    padding-bottom: 52px;
  }

  .site-swiper .hero {
    display: flex;
    flex-direction: column;
    min-height: 0;
    height: 100%;
    align-items: stretch;
    justify-content: flex-start;
    overflow: hidden;
  }

  .site-swiper .hero .hero__shell {
    flex: 1 1 auto;
    min-height: 0;
    width: min(var(--content), 100%);
  }

  .site-swiper .hero .hero__visual {
    min-height: min(460px, 52vh);
  }

  .site-swiper .hero h1 {
    font-size: clamp(120px, 16vw, 200px);
  }

  .site-swiper .hero .hero__lead {
    margin-top: 18px;
    font-size: clamp(20px, 2.6vw, 36px);
  }

  .site-swiper .hero .hero__summary {
    margin-top: 16px;
    font-size: 16px;
  }

  /* 平台行不再贴底，而是稍稍上移，视觉上向屏幕中下偏上收拢。 */
  .site-swiper .hero .hero-platforms {
    flex: 0 0 auto;
    margin-top: auto;
    margin-bottom: clamp(80px, 12vh, 140px);
  }

  .site-swiper .hero .hero-scroll {
    bottom: clamp(20px, 4vh, 48px);
  }

  .site-swiper .section {
    scroll-margin-top: 0;
  }

  .site-swiper #products {
    padding-top: 26px;
    padding-bottom: 26px;
  }

  /* 下载页主内容垂直+水平居中，版权条贴在分屏底部。 */
  .site-swiper #download {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 18px;
  }

  .site-swiper #download .download-layout {
    width: min(var(--content), 100%);
    margin: auto;
    flex: 1 1 auto;
  }

  .site-swiper #download .download-footer {
    width: min(var(--content), 100%);
    margin: 0 auto;
  }

  .site-swiper #screens {
    padding: 0;
    overflow: hidden;
  }

  .site-swiper #screens .app-wall {
    height: 100%;
    min-height: 0;
  }

  .section__heading {
    margin-bottom: 24px;
  }

  .section__heading p:not(.section__kicker) {
    margin-top: 12px;
    font-size: 16px;
  }

  .feature-card {
    min-height: 142px;
    padding: 18px 20px;
  }

  .feature-card h3 {
    margin-top: 14px;
  }

  /* 低高度桌面需要让六位服务者完整落在单个分屏内。 */
  .companion-heading {
    margin-bottom: 10px;
  }

  .service-strip {
    margin-bottom: 8px;
  }

  .service-strip a {
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .service-strip strong {
    font-size: 18px;
  }

  .companion-card {
    padding: 12px 14px;
    gap: 10px 12px;
  }

  .companion-card__avatar {
    flex-basis: 60px;
    width: 60px;
    height: 60px;
  }

  .companion-card h3 {
    font-size: 15px;
  }

  .companion-card__price {
    font-size: 16px;
  }

  .companion-card__price strong {
    font-size: 18px;
  }

  .companion-section__footer {
    margin-top: 12px;
  }

  .flow-steps li {
    min-height: 0;
    padding: 16px 0 0;
  }

  .flow-steps h3 {
    margin-top: 11px;
  }

  .section__action {
    margin-top: 20px;
  }

  .company-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 24px;
  }

  .company-list div {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 10px;
    padding: 9px 0;
  }

  .company-list div:nth-child(10),
  .company-list div:nth-child(11) {
    grid-column: 1 / -1;
  }

}

/* 未启用桌面分屏时覆盖 Swiper 基础布局，确保手机和平板使用普通长页面。 */
.site-swiper:not(.swiper-initialized) {
  overflow: visible;
}

.site-swiper:focus,
.site-swiper:focus-visible {
  outline: 0;
}

.site-swiper:not(.swiper-initialized) > .swiper-wrapper {
  display: block;
  height: auto;
}

.site-swiper:not(.swiper-initialized) .swiper-slide {
  height: auto;
}

/* 中等屏幕减少列数，保持卡片文字不被挤压。 */
@media (max-width: 960px) {
  .hero__shell {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .hero__content {
    padding-bottom: 0;
  }

  .hero__visual {
    min-height: 430px;
    padding-bottom: 0;
  }

  .hero__shot--one {
    left: 8%;
  }

  .hero__shot--two {
    right: 12%;
  }

  .feature-grid,
  .flow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .companion-grid {
    grid-template-columns: 1fr;
  }

  .company,
  .download-layout,
  .security-layout,
  .flow-poster__header {
    grid-template-columns: 1fr;
  }

  .app-wall {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .app-frame {
    height: 100svh;
    min-height: 680px;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .flow-poster__meta {
    min-width: 0;
    text-align: left;
  }
}

/* 小屏幕收口导航、网格和定义列表，保证最长文字仍可换行显示。 */
@media (max-width: 680px) {
  .site-header {
    min-height: 64px;
  }

  .brand__mark {
    width: 52px;
    height: 34px;
  }

  .brand__text {
    font-size: 16px;
  }

  .nav {
    gap: 12px;
    font-size: 13px;
  }

  /* 四个核心 tab 全部保留，隐藏站名文字为导航释放横向空间。 */
  .brand__text {
    display: none;
  }

  .hero {
    scroll-margin-top: 64px;
    min-height: auto;
    padding-top: 42px;
    padding-bottom: 42px;
  }

  .hero__media {
    background-position: center;
  }

  .hero::before {
    /* 窄屏文字覆盖范围更大，改为均匀纵向遮罩避免截图信息穿过正文。 */
    background: linear-gradient(180deg, rgba(3, 6, 14, 0.86) 0%, rgba(3, 6, 14, 0.96) 100%);
  }

  .hero h1 {
    font-size: clamp(88px, 26vw, 140px);
    letter-spacing: 0.08em;
  }

  .hero__lead {
    /* 窄屏仍尽量单行；过窄时略缩小字距与字号，避免撑破屏幕。 */
    font-size: clamp(15px, 4.2vw, 22px);
    letter-spacing: 0.06em;
    max-width: 100%;
  }

  .hero {
    min-height: 100svh;
    padding-top: 72px;
    padding-bottom: 52px;
  }

  .hero-platforms {
    width: 100%;
  }

  .hero-platforms li {
    flex: 1 1 40%;
    justify-content: center;
    gap: 12px;
    padding: 14px 16px;
    border-left: 0 !important;
  }

  .hero-platforms li:nth-child(even) {
    border-left: 1px solid rgba(255, 255, 255, 0.16) !important;
  }

  .hero-platforms img {
    width: 30px;
    height: 30px;
  }

  .hero-platforms span {
    font-size: 16px;
  }

  .hero-platforms small {
    font-size: 12px;
  }

  .hero-scroll {
    bottom: 12px;
  }

  .hero-scroll__label {
    font-size: 10px;
    letter-spacing: 0.16em;
  }

  .hero__visual {
    min-height: 238px;
  }

  .hero__orb {
    width: 146px;
  }

  .hero__shot {
    border-radius: 14px;
  }

  .hero__shot figcaption {
    font-size: 11px;
  }

  .hero__shot--one {
    left: 50%;
    top: 44px;
    width: min(290px, 88vw);
    height: 152px;
    transform: translateX(-50%);
  }

  .hero__shot--two {
    display: none;
  }

  .hero__shot--three {
    display: none;
  }

  /* 四端在窄屏改为两列，避免平台名称和状态被压缩或截断。 */
  .download-platforms {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 14px;
    padding: 22px 0;
  }

  .download-platforms li {
    gap: 12px;
    padding: 0 14px;
  }

  .download-platforms li:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }

  .download-platforms li:nth-child(n + 3) {
    padding-top: 14px;
    border-top: 1px solid var(--line);
  }

  .download-platforms img {
    flex-basis: 34px;
    width: 34px;
    height: 34px;
  }

  .download-platforms strong {
    font-size: 18px;
  }

  .download-platforms small {
    font-size: 13px;
  }

  .service-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-strip a {
    padding: 12px 14px;
  }

  .service-strip a:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }

  .service-strip a:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .feature-grid,
  .flow-steps,
  .flow-lanes,
  .flow-support,
  .companion-grid {
    grid-template-columns: 1fr;
    border-radius: 14px;
  }

  .companion-card {
    grid-template-columns: 64px minmax(0, 1fr) auto;
  }

  .companion-card:nth-last-child(-n + 2) {
    border-bottom: 1px solid #eef0f5;
  }

  .companion-card:last-child {
    border-bottom: 0;
  }

  .company-list div {
    grid-template-columns: 1fr;
    gap: 3px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer__links {
    justify-content: flex-start;
  }

  .flow-poster {
    padding: 22px;
  }

  .order-dialog__panel {
    padding: 26px 22px 22px;
  }

  .order-dialog__actions .button {
    flex: 1 1 0;
    min-width: 0;
  }

  .flow-stage-title {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }
}

/* 极窄屏继续保留四个核心导航，仅收紧间距和字号。 */
@media (max-width: 430px) {
  .site-header {
    padding-right: 14px;
    padding-left: 14px;
  }

  .brand__mark {
    width: 44px;
  }

  .nav {
    gap: 9px;
    font-size: 12px;
  }
}