/* PJMan 产品介绍 — 清爽 / 大气 / 专业；浅色；适配移动端与安全区 */

:root {
  /* 页面底色与区块表面（冷灰阶，白/浅灰交替） */
  --bg-page: #e9edf3;
  --bg-hero: #f6f8fb;
  --bg-elevated: #ffffff;
  --bg-card: #ffffff;
  --bg-muted: #f0f3f8;
  --bg-strip: #e4eaf2;
  --surface-0: #ffffff;
  --surface-1: #f5f7fa;
  --surface-2: #eceff4;
  --surface-intro: #ffffff;
  --surface-elevated: var(--surface-0);
  --surface-muted: var(--surface-1);
  --surface-band-top: #f3f6fa;
  --surface-band-bottom: #e9eef5;
  --surface-cta-mid: #eef3fa;
  --surface-cta-mid-end: #e4ecf7;
  --surface-cta-contact: #e9f0f9;
  --surface-cta-contact-end: #f4f7fb;
  --surface-footer-top: #e3e8ef;
  --surface-footer-bottom: #ebeef3;
  --border-subtle: rgba(22, 36, 56, 0.055);
  /* 字号阶梯（rem，与 body 15–17px 协调） */
  --text-xs: 0.8125rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1.0625rem;
  --text-lg: 1.125rem;
  --text-xl: clamp(1.25rem, 0.6vw + 1.12rem, 1.375rem);
  --text-2xl: clamp(1.4375rem, 1.2vw + 1.2rem, 1.875rem);
  --text-hero-title: clamp(1.875rem, 3.8vw + 0.75rem, 2.75rem);
  --text-hero-sub: clamp(1.0625rem, 0.45vw + 0.98rem, 1.25rem);
  --text-hero-lead: clamp(0.9375rem, 0.2vw + 0.9rem, 1.0625rem);
  --text-feature: clamp(0.875rem, 0.12vw + 0.84rem, 0.9375rem);
  /* 垂直节奏 */
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --stack-sm: clamp(0.75rem, 1.8vw, 1rem);
  --stack-md: clamp(1.25rem, 2.8vw, 1.75rem);
  --stack-lg: clamp(1.75rem, 3.5vw, 2.5rem);
  --section-py: clamp(2.75rem, 5.5vw, 4rem);
  --section-head-gap: clamp(1.5rem, 3vw, 2rem);
  --border: rgba(22, 36, 56, 0.09);
  --border-strong: rgba(22, 36, 56, 0.14);
  --text: #161c24;
  --text-muted: #556070;
  --text-heading: #0f1419;
  /* 主色：产品蓝 */
  --accent: #2d5ec9;
  --accent-bright: #3b74f0;
  --accent-dim: rgba(59, 116, 240, 0.12);
  --accent-rgb: 45, 94, 201;
  --accent-bright-rgb: 59, 116, 240;
  /* 辅色：蓝紫 / 青绿 — 分区与状态 */
  --accent-2: #5469c4;
  --accent-2-dim: rgba(84, 105, 196, 0.12);
  --accent-2-rgb: 84, 105, 196;
  --accent-teal: #2a8f7a;
  --accent-teal-dim: rgba(42, 143, 122, 0.12);
  --accent-teal-rgb: 42, 143, 122;
  --accent-amber: #d4920b;
  --accent-amber-dim: rgba(212, 146, 11, 0.14);
  --success: #2e9d56;
  --success-rgb: 46, 157, 86;
  --radius: 16px;
  --radius-sm: 12px;
  --content-max: 1160px;
  --pad-x: clamp(1rem, 4.5vw, 2.25rem);
  --header-h: 3.35rem;
  --shadow-sm: 0 1px 2px rgba(15, 26, 42, 0.045);
  --shadow-md: 0 12px 40px rgba(15, 32, 52, 0.08);
  --shadow-lg: 0 22px 64px rgba(15, 32, 52, 0.1);
  --shadow-carousel: 0 1px 2px rgba(15, 32, 52, 0.05),
    0 10px 28px rgba(15, 32, 52, 0.11),
    0 24px 56px rgba(var(--accent-rgb), 0.07);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --font: "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    system-ui, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;
}

@keyframes surface-reveal {
  from {
    opacity: 0.62;
    transform: translateY(22px);
  }

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

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 0.75rem);
  height: 100%;
}

body {
  margin: 0;
  min-height: 100%;
  display: flex;
  flex-direction: column;
  font-family: var(--font);
  font-size: clamp(15px, 0.45vw + 14px, 17px);
  line-height: 1.65;
  color: var(--text);
  background-color: var(--bg-page);
  background-image: radial-gradient(
    ellipse 90% 55% at 50% -20%,
    rgba(var(--accent-bright-rgb), 0.05),
    transparent 62%
  );
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  padding-left: env(safe-area-inset-left, 0);
  padding-right: env(safe-area-inset-right, 0);
}

.site-main {
  flex: 1 0 auto;
}

a {
  color: var(--accent-bright);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

a:focus-visible,
.btn:focus-visible,
.nav a:focus-visible,
.nav-toggle:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 3px;
}

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

.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;
}

/* 页顶锚点：供 #top / 返回顶部使用，勿放在 sticky 顶栏内 */
.page-top-anchor {
  display: block;
  height: 0;
  width: 0;
  overflow: hidden;
  scroll-margin-top: 0;
}

/* —— 顶栏 —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: saturate(1.2) blur(18px);
  background: rgba(248, 251, 253, 0.88);
  border-bottom: 1px solid rgba(var(--accent-rgb), 0.1);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.82) inset,
    0 8px 28px rgba(15, 28, 48, 0.055);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  pointer-events: none;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(var(--accent-bright-rgb), 0.42) 22%,
    rgba(var(--accent-2-rgb), 0.32) 52%,
    rgba(var(--accent-rgb), 0.35) 78%,
    transparent 100%
  );
  opacity: 0.9;
}

.site-header__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0.65rem var(--pad-x);
  padding-top: max(0.65rem, env(safe-area-inset-top, 0px));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand:hover {
  text-decoration: none;
  color: var(--accent);
}

.brand--pjman {
  font-size: 1.38rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  align-items: center;
  gap: 0.3rem;
  flex-shrink: 0;
}

.brand--pjman:hover {
  color: inherit;
  filter: none;
}

.brand__pj {
  display: inline-flex;
  align-items: baseline;
  gap: 0.02em;
}

.brand__man {
  display: inline-flex;
  align-items: baseline;
  gap: 0.02em;
  margin-left: -.22em;
}

.brand__p {
  color: #dc2626;
}
.brand__j {
  color: #16a34a;
}
.brand__m {
  color: var(--accent-bright);
}
.brand__an {
  color: #d97706;
}

.brand--pjman .brand__ver {
  margin-left: 0.15rem;
}

.brand__name {
  font-size: 1.15rem;
}

.brand__ver {
  font-size: 0.875rem;
  font-weight: 750;
  line-height: 1.15;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.28rem 0.62rem;
  border-radius: 999px;
  vertical-align: middle;
  letter-spacing: 0.03em;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(241, 245, 249, 0.95));
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  font: inherit;
  touch-action: manipulation;
  transition: background 0.15s, border-color 0.15s;
}

.nav-toggle:hover {
  border-color: rgba(15, 23, 42, 0.14);
  background: #ffffff;
}

.nav-toggle__bar {
  display: block;
  width: 1.2rem;
  height: 2px;
  border-radius: 1px;
  background: var(--text);
  transition: transform 0.22s ease, opacity 0.22s ease;
}

/* 主导航：桌面可换行；窄屏横向滑动，避免杂乱折行 */
.nav {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.2rem;
  max-width: min(100%, calc(100vw - 9rem));
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 0.2rem 0;
}

.nav::-webkit-scrollbar {
  display: none;
}

.nav a {
  flex-shrink: 0;
  white-space: nowrap;
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  padding: 0.5rem 0.65rem;
  border-radius: 10px;
  transition: background 0.15s, color 0.15s;
}

.nav a:not(.nav__cta):not(.nav__viz):hover {
  color: var(--text);
  text-decoration: none;
  background: rgba(var(--accent-rgb), 0.06);
}

/* 滚动至对应区块时由脚本添加（scroll spy） */
.nav a.nav__link--active {
  color: var(--accent);
  font-weight: 650;
  background: rgba(var(--accent-rgb), 0.11);
  box-shadow: inset 0 0 0 1px rgba(var(--accent-rgb), 0.16);
}

.nav a.nav__link--active:hover {
  color: var(--accent);
  text-decoration: none;
  background: rgba(var(--accent-rgb), 0.15);
}

.nav a.nav__cta {
  background: linear-gradient(135deg, var(--accent-bright), var(--accent));
  color: #ffffff !important;
  font-weight: 600;
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  font-size: 0.82rem;
  box-shadow: 0 2px 14px rgba(var(--accent-bright-rgb), 0.32);
}

.nav a.nav__cta:hover,
.nav a.nav__cta:focus-visible {
  text-decoration: none;
  color: #ffffff !important;
  background: linear-gradient(135deg, #3568c4, #1a4080);
  box-shadow: 0 4px 20px rgba(var(--accent-rgb), 0.42);
  filter: none;
}

.nav__viz {
  color: var(--accent) !important;
  font-weight: 650;
}

.nav__viz:hover {
  color: var(--accent-bright) !important;
  background: rgba(var(--accent-rgb), 0.1);
}

@media (min-width: 1024px) {
  .nav {
    flex-wrap: wrap;
    justify-content: flex-end;
    overflow-x: visible;
    max-width: none;
    gap: 0.15rem 0.35rem;
  }

  .nav a {
    padding: 0.45rem 0.75rem;
  }
}

/* —— Hero —— */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2.25rem, 6vw, 4rem) var(--pad-x) clamp(1.75rem, 4vw, 2.75rem);
  background: linear-gradient(
    185deg,
    var(--surface-elevated) 0%,
    #f6fafd 42%,
    var(--surface-muted) 100%
  );
}

.hero.hero--intro {
  background: var(--surface-intro);
  border-bottom: 1px solid var(--border-subtle);
}

.hero.hero--intro::before {
  display: none;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
      ellipse 78% 58% at 50% -12%,
      rgba(var(--accent-bright-rgb), 0.11),
      transparent 58%
    ),
    radial-gradient(
      ellipse 48% 40% at 100% 6%,
      rgba(var(--accent-2-rgb), 0.07),
      transparent 54%
    ),
    radial-gradient(
      ellipse 42% 34% at 0% 22%,
      rgba(var(--accent-teal-rgb), 0.06),
      transparent 52%
    );
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 0 auto;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(var(--accent-rgb), 0.07);
  border: 1px solid rgba(var(--accent-rgb), 0.1);
}

.hero h1 {
  margin: 0 0 var(--space-3);
  font-size: var(--text-hero-title);
  font-weight: 780;
  letter-spacing: -0.035em;
  line-height: 1.15;
  max-width: 12rem;
  color: var(--text-heading);
}

.hero__subtitle {
  margin: 0 0 var(--space-6);
  max-width: 34rem;
  font-size: var(--text-hero-sub);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -0.015em;
  color: rgba(22, 42, 72, 0.78);
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .hero h1 {
    color: transparent;
    background: linear-gradient(
      118deg,
      #0f1729 0%,
      #1a3a6e 38%,
      #2a52a8 68%,
      #1c4f7a 100%
    );
    -webkit-background-clip: text;
    background-clip: text;
  }
}

.hero__tagline {
  margin: 0 0 1.1rem;
  max-width: 44rem;
  font-size: clamp(1.02rem, 0.45vw + 0.98rem, 1.18rem);
  font-weight: 600;
  line-height: 1.55;
  color: #2a3f5c;
  letter-spacing: -0.015em;
}

.hero__lead {
  margin: 0 0 1.75rem;
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 42rem;
}

.hero--intro {
  padding-bottom: clamp(1.75rem, 3.5vw, 2.5rem);
}

.hero__intro-row {
  width: 100%;
  margin-bottom: var(--stack-md);
}

.hero__intro-row .hero__lead--classic {
  width: 100%;
  max-width: 100%;
  margin: 0;
}

.hero-showcase__aside .hero__upload-btn {
  margin-top: var(--space-4);
  align-self: flex-start;
  text-decoration: none;
  font-size: var(--text-sm);
  padding: 0.5rem 1.2rem;
  min-height: 40px;
  white-space: nowrap;
}

.hero__lead--classic {
  max-width: 100%;
  margin-bottom: var(--stack-md);
  font-size: var(--text-hero-lead);
  line-height: 1.65;
  color: #6a7585;
}

.hero__lead--classic strong {
  color: #1e4a7a;
  font-weight: 600;
}

/* —— 首屏：双栏展示（左轮播 · 右能力列表） —— */
.hero-showcase {
  margin: var(--stack-sm) 0 0;
  max-width: var(--content-max);
}

.hero-showcase__panel {
  overflow: visible;
  border-radius: 0;
  background: transparent;
  border: none;
  box-shadow: none;
}

.hero-showcase__top {
  padding: clamp(0.65rem, 1.8vw, 0.85rem) clamp(1rem, 2.5vw, 1.35rem);
  border-bottom: 1px solid var(--border);
  justify-content: flex-start;
  gap: 0.65rem 1.35rem;
  font-size: 0.86rem;
}

@media (min-width: 768px) {
  .hero-showcase__top {
    justify-content: center;
    gap: 0.5rem 2rem;
    font-size: 0.9rem;
  }
}

.hero-showcase__em {
  font-weight: 650;
  color: var(--text-heading);
}

.hero-showcase__body {
  display: grid;
  grid-template-columns: 1fr;
  align-items: stretch;
}

@media (min-width: 900px) {
  .hero-showcase__body {
    grid-template-columns: minmax(0, 1.35fr) minmax(240px, 0.75fr);
    gap: var(--space-6);
    align-items: start;
  }
}

.hero-showcase__media {
  min-width: 0;
  padding: 0 var(--space-3) 0 0;
  align-self: start;
}

.hero-showcase__media.hero__carousel-wrap {
  width: 100%;
  max-width: none;
  margin: 0;
  padding-top: 0;
  border-top: none;
}

.hero-showcase .hero-carousel__viewport {
  max-height: min(50vh, 400px);
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface-elevated);
  border: 3px solid #fff;
  box-shadow: var(--shadow-carousel);
}

.hero-showcase .hero-carousel__slide {
  padding: 0;
}

.hero-showcase .hero-carousel__slide img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  object-fit: contain;
  border-radius: 0;
}

@media (min-width: 900px) {
  .hero-showcase .hero-carousel__viewport {
    max-height: min(50vh, 420px);
    aspect-ratio: 16 / 9;
  }
}

.hero-showcase .hero-carousel:focus-visible .hero-carousel__viewport {
  outline: 2px solid var(--accent-bright);
  outline-offset: 3px;
  box-shadow: var(--shadow-carousel), 0 0 0 4px rgba(var(--accent-bright-rgb), 0.18);
}

.hero-showcase__aside {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  align-self: start;
  text-align: left;
  padding: 0;
  border: none;
  background: transparent;
}

@media (min-width: 900px) {
  .hero-showcase__aside {
    padding: 0 0 0 var(--space-4);
  }
}

.hero-feature-list__title {
  margin: 0 0 var(--space-3);
  padding: 0 0 0 calc(0.5rem + 3px);
  font-size: var(--text-base);
  font-weight: 650;
  letter-spacing: 0.04em;
  line-height: 1.3;
  color: var(--text-heading);
  position: relative;
}

.hero-feature-list__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.15em;
  bottom: 0.15em;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(
    180deg,
    var(--accent-bright),
    var(--accent-2) 55%,
    var(--accent-teal)
  );
}

.hero-feature-list {
  margin: 0;
  padding: 0;
  list-style: none;
  width: 100%;
  border: none;
  border-radius: 0;
  background: none;
  box-shadow: none;
}

.hero-feature-list li {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  padding: 0.34rem 0;
  font-size: var(--text-feature);
  line-height: 1.5;
  color: var(--text);
  border: none;
  background: none;
}

.hero-feature-list li + li {
  margin-top: 0.02rem;
}

/* 品牌色圆点标记（与全站 accent 装饰一致） */
.hero-feature-list li::before {
  content: "";
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-bright);
  box-shadow: 0 0 0 3px rgba(var(--accent-bright-rgb), 0.14);
}

.hero-feature-list li::after {
  content: none;
}

/* —— 首屏：轮播区（独立使用时） —— */
.hero__carousel-wrap {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding-top: 0;
  border-top: none;
}

.check-list--hero {
  margin: 0;
  max-width: none;
  padding-top: 0;
  border: 1px solid rgba(var(--accent-rgb), 0.12);
  background: linear-gradient(
    155deg,
    rgba(255, 255, 255, 0.97) 0%,
    rgba(244, 249, 253, 0.92) 55%,
    rgba(236, 245, 252, 0.88) 100%
  );
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.95) inset, var(--shadow-sm);
}

.check-list--hero li {
  padding-top: 0.62rem;
  padding-bottom: 0.62rem;
  font-size: 0.94rem;
  line-height: 1.62;
}

.section--product-points .check-list--hero {
  max-width: min(52rem, 100%);
  margin-left: auto;
  margin-right: auto;
}

.intro-cta {
  position: relative;
  padding-top: var(--section-py);
  padding-bottom: var(--section-py);
  background: linear-gradient(
    178deg,
    #f0f5fb 0%,
    #e8f0f8 42%,
    #e2ebf4 100%
  );
  border-top: none;
}

.intro-cta::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  pointer-events: none;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(var(--accent-bright-rgb), 0.45) 22%,
    rgba(var(--accent-teal-rgb), 0.35) 78%,
    transparent
  );
}

.intro-cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 36rem;
  margin: 0 auto;
  gap: 1.15rem;
}

.intro-cta__head {
  margin: 0;
}

.intro-cta__kicker {
  margin: 0 0 0.35rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.intro-cta__title {
  margin: 0 0 0.45rem;
  font-size: clamp(1.2rem, 1.6vw + 0.9rem, 1.45rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-heading);
}

.intro-cta__lede {
  margin: 0;
  font-size: clamp(0.92rem, 0.25vw + 0.88rem, 1.02rem);
  line-height: 1.65;
  color: var(--text-muted);
}

.intro-cta .hero__actions {
  justify-content: center;
  margin-top: 0.15rem;
}

/* —— 首屏轮播（imgs/slides，见 manifest.json；无外框，底栏仅指示点） —— */
.hero-carousel {
  position: relative;
  z-index: 1;
  margin: 0;
  width: 100%;
  max-width: none;
  background: transparent;
  border: none;
  box-shadow: none;
  overflow: visible;
}

.hero-carousel:focus-visible {
  outline: none;
}

.hero-carousel:focus-visible .hero-carousel__viewport {
  outline: 2px solid var(--accent-bright);
  outline-offset: 4px;
  border-radius: 8px;
}

.hero-carousel__viewport {
  position: relative;
  aspect-ratio: 16 / 9;
  max-height: min(48vh, 440px);
  margin: 0 auto;
  background: transparent;
  border: none;
  box-shadow: none;
}

@media (min-width: 900px) {
  .hero__carousel-wrap .hero-carousel__viewport {
    max-height: min(42vh, 380px);
  }
}

.hero-carousel__slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(0.35rem, 1.5vw, 0.75rem);
  opacity: 0;
  transition: opacity 0.55s var(--ease-out);
  pointer-events: none;
}

.hero-carousel__slide.is-active {
  opacity: 1;
  pointer-events: auto;
  z-index: 1;
}

.hero-carousel__slide img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 0;
  box-shadow: none;
}

.hero-carousel__toolbar {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 0 0;
  border: none;
  background: transparent;
}

.hero-carousel__dots {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 1.5rem;
}

.hero-carousel__dot {
  width: 0.45rem;
  height: 0.45rem;
  padding: 0;
  margin: 0;
  border: none;
  border-radius: 999px;
  background: rgba(22, 36, 56, 0.2);
  cursor: pointer;
  transition: transform 0.15s var(--ease-out), background 0.15s var(--ease-out), width 0.2s var(--ease-out);
}

.hero-carousel__dot:hover {
  background: rgba(var(--accent-rgb), 0.45);
}

.hero-carousel__dot--active,
.hero-carousel__dot[aria-selected="true"] {
  background: linear-gradient(90deg, var(--accent-bright), var(--accent-2));
  width: 1.15rem;
}

.hero-carousel__dot:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 2px;
}

.check-list {
  position: relative;
  margin: 0 0 2rem;
  padding: 0.5rem 0 0;
  list-style: none;
  max-width: 50rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.9) inset;
  overflow: hidden;
}

.check-list::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65rem;
  bottom: 0.65rem;
  width: 3px;
  border-radius: 0 3px 3px 0;
  opacity: 0.95;
}

.check-list li {
  position: relative;
  padding: 0.55rem 1rem 0.55rem 2.35rem;
  font-size: 0.96rem;
  color: var(--text);
  border-bottom: 1px solid rgba(15, 23, 42, 0.05);
}

.check-list li:last-child {
  border-bottom: none;
}

.check-list__link {
  color: var(--accent);
  font-weight: 650;
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.check-list__link:hover {
  color: var(--accent-bright);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0.85rem;
  top: 0.72rem;
  width: 1.05rem;
  height: 1.05rem;
  border-radius: 5px;
  background: rgba(var(--success-rgb), 0.12);
  box-shadow: inset 0 0 0 2px rgba(var(--success-rgb), 0.35);
}

.check-list li::after {
  content: "";
  position: absolute;
  left: 1.1rem;
  top: 0.88rem;
  width: 0.32rem;
  height: 0.52rem;
  border: solid var(--success);
  border-width: 0 2px 2px 0;
  transform: rotate(40deg);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero__actions--center {
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.55rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: var(--text-sm);
  border: none;
  cursor: pointer;
  font-family: inherit;
  touch-action: manipulation;
  transition: transform 0.12s, filter 0.12s, box-shadow 0.2s var(--ease-out);
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent-bright), var(--accent));
  color: #ffffff;
  box-shadow: 0 4px 18px rgba(var(--accent-rgb), 0.32);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  color: #ffffff;
  background: linear-gradient(135deg, #3568c4, #1a4080);
  filter: none;
  box-shadow: 0 8px 28px rgba(var(--accent-rgb), 0.38);
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.95);
  color: var(--text);
  border: 1px solid var(--border-strong);
}

.btn--ghost:hover {
  background: #f8fafc;
  border-color: rgba(15, 23, 42, 0.16);
}

.btn--viz {
  background: #ffffff;
  color: var(--accent);
  border: 2px solid rgba(var(--accent-bright-rgb), 0.45);
  box-shadow: 0 2px 14px rgba(var(--accent-rgb), 0.12);
}

.btn--viz:hover {
  background: rgba(var(--accent-dim));
  border-color: var(--accent-bright);
  color: var(--accent);
  box-shadow: 0 4px 20px rgba(var(--accent-rgb), 0.18);
}

/* —— 通用区块：白 / 浅灰带交替，无硬分割线 —— */
.product-module {
  border-top: none;
}

.product-module > .section {
  border-top: none;
}

.section {
  padding: var(--section-py) var(--pad-x);
  border-top: none;
  background: var(--surface-0);
}

.section--surface-muted {
  background: linear-gradient(
    180deg,
    var(--surface-band-top) 0%,
    var(--surface-band-bottom) 100%
  );
}

.section--surface-elevated {
  background: var(--surface-0);
}

/* 兼容 update.html 等仍使用 section--alt 的页面 */
.section--alt {
  background: linear-gradient(
    180deg,
    var(--surface-band-top) 0%,
    var(--surface-band-bottom) 100%
  );
}

.section__inner {
  max-width: var(--content-max);
  margin: 0 auto;
}

.section__head {
  margin-bottom: var(--section-head-gap);
  max-width: 100%;
}

.section__head h1,
.section__head h2 {
  margin: 0 0 var(--space-4);
  padding-left: calc(0.75rem + 4px);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.028em;
  color: var(--text-heading);
  line-height: 1.28;
  position: relative;
}

.section__head h1::before,
.section__head h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.12em;
  bottom: 0.12em;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(
    180deg,
    var(--accent-bright),
    var(--accent-2) 55%,
    var(--accent-teal)
  );
}

.section__head p {
  margin: 0;
  color: var(--text-muted);
  font-size: var(--text-md);
  line-height: 1.65;
}

.section__inline-link {
  color: var(--accent);
  font-weight: 650;
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.section__inline-link:hover {
  color: var(--accent-bright);
}

.section__kicker {
  margin: 0 0 var(--space-3);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-bright);
}

.section__head .section__kicker + h1,
.section__head .section__kicker + h2 {
  margin-top: 0;
}

/* —— 使用流程（三步） —— */
.process-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: clamp(1rem, 2.5vw, 1.35rem);
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 820px) {
  .process-steps {
    grid-template-columns: 1fr;
  }
}

.process-step {
  position: relative;
  margin: 0;
  padding: clamp(1.2rem, 2.5vw, 1.5rem) clamp(1.1rem, 2vw, 1.35rem);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(165deg, #ffffff 0%, #f8fafc 100%);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: border-color 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.process-step:hover {
  border-color: rgba(var(--accent-rgb), 0.22);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.process-step__num {
  display: block;
  font-size: clamp(1.75rem, 3vw + 1rem, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 0.65rem;
  color: rgba(var(--accent-bright-rgb), 0.22);
}

.process-step h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-heading);
}

.process-step p {
  margin: 0;
  font-size: 0.93rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.process-step > *,
.pillar-card > * {
  position: relative;
  z-index: 1;
}

/* —— 交付保障（四宫格） —— */
.pillar-grid {
  display: grid;
  gap: clamp(1rem, 2vw, 1.25rem);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
}

.pillar-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 0.85rem;
  row-gap: 0.35rem;
  align-items: start;
  text-align: left;
  padding: clamp(1.15rem, 2.5vw, 1.45rem) 1.1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.pillar-card:hover {
  border-color: rgba(var(--accent-rgb), 0.22);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.pillar-card__icon {
  grid-row: 1 / span 2;
  width: 44px;
  height: 44px;
  margin: 0;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: var(--accent-dim);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.28s ease;
}

.pillar-card__icon .ui-icon {
  width: 1.35rem;
  height: 1.35rem;
}

.pillar-card:hover .pillar-card__icon {
  transform: scale(1.06);
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
}

.pillar-grid .pillar-card:nth-child(1) .pillar-card__icon {
  background: linear-gradient(135deg, rgba(var(--accent-bright-rgb), 0.18), rgba(var(--accent-rgb), 0.06));
  color: var(--accent);
}

.pillar-grid .pillar-card:nth-child(2) .pillar-card__icon {
  background: linear-gradient(135deg, rgba(var(--accent-2-rgb), 0.2), rgba(var(--accent-2-rgb), 0.07));
  color: #4a56a8;
}

.pillar-grid .pillar-card:nth-child(3) .pillar-card__icon {
  background: linear-gradient(135deg, rgba(var(--accent-teal-rgb), 0.18), rgba(var(--accent-teal-rgb), 0.06));
  color: #237a65;
}

.pillar-grid .pillar-card:nth-child(4) .pillar-card__icon {
  background: linear-gradient(135deg, rgba(217, 119, 6, 0.14), rgba(217, 119, 6, 0.05));
  color: #b45309;
}

.pillar-card h3 {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-size: 0.98rem;
  font-weight: 650;
  color: var(--text-heading);
  line-height: 1.35;
}

.pillar-card p {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.58;
}

/* —— 中段 CTA —— */
.cta--mid {
  position: relative;
  padding: var(--section-py) var(--pad-x);
  background: linear-gradient(
    180deg,
    var(--surface-cta-mid) 0%,
    var(--surface-cta-mid-end) 100%
  );
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.cta--mid::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 70% 80% at 50% 0%,
    rgba(var(--accent-bright-rgb), 0.07),
    transparent 65%
  );
  pointer-events: none;
}

.cta--mid > * {
  position: relative;
  z-index: 1;
}

.cta__narrow {
  position: relative;
  z-index: 1;
  max-width: 34rem;
  margin: 0 auto;
}

/* —— 价值条 —— */
.strip {
  background: linear-gradient(
    105deg,
    var(--bg-strip) 0%,
    #e6eef6 50%,
    var(--bg-strip) 100%
  );
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1.1rem var(--pad-x);
  position: relative;
}

.strip::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(var(--accent-bright-rgb), 0.35) 30%,
    rgba(var(--accent-2-rgb), 0.26) 70%,
    transparent
  );
  pointer-events: none;
}

.strip__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.85rem 1.75rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
}

@media (min-width: 768px) {
  .strip__inner {
    gap: 0.5rem 2.5rem;
    font-size: 0.9rem;
  }

  .strip__item + .strip__item {
    border-left: 1px solid rgba(15, 23, 42, 0.1);
    padding-left: 2.5rem;
    margin-left: -0.5rem;
  }
}

.strip__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.strip__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, #55c45f, var(--success));
  box-shadow: 0 0 0 3px rgba(var(--success-rgb), 0.22);
}

.strip__item:not(:first-child)::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.strip__item:nth-child(2)::before {
  background: linear-gradient(135deg, #8e9eeb, var(--accent-2));
  box-shadow: 0 0 0 3px rgba(var(--accent-2-rgb), 0.18);
}

.strip__item:nth-child(3)::before {
  background: linear-gradient(135deg, #5dc9b0, var(--accent-teal));
  box-shadow: 0 0 0 3px rgba(var(--accent-teal-rgb), 0.18);
}

.strip__item:nth-child(4)::before {
  background: linear-gradient(135deg, #6b9fff, var(--accent));
  box-shadow: 0 0 0 3px rgba(var(--accent-bright-rgb), 0.2);
}

.strip__link {
  color: inherit;
  font-weight: 650;
  text-decoration: none;
  border-bottom: 1px solid rgba(var(--accent-rgb), 0.35);
  padding-bottom: 0.06rem;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.strip__link:hover {
  color: var(--accent);
  border-color: rgba(var(--accent-bright-rgb), 0.55);
}

/* 概览区：轮播下方独立价值条区块 */
.overview-strip {
  margin: 0;
  padding: 0;
  border: none;
  background: transparent;
}

.overview-strip .strip {
  border-top: 1px solid var(--border);
}

/* —— 卡片网格 —— */
.grid-3 {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 270px), 1fr));
}

.card {
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 2.5vw, 1.65rem);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.card > * {
  position: relative;
  z-index: 1;
}

.card:hover {
  border-color: rgba(var(--accent-rgb), 0.22);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.card__head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: var(--space-3);
}

.card__head .card__icon {
  margin-bottom: 0;
  flex-shrink: 0;
}

.card__head h3 {
  margin: 0;
  flex: 1;
  min-width: 0;
}

.card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--accent-dim);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 1rem;
  transition: transform 0.38s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.28s ease;
}

.card:hover .card__icon {
  transform: scale(1.06);
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
}

.grid-3 .card:nth-child(1) .card__icon {
  background: linear-gradient(135deg, rgba(var(--accent-bright-rgb), 0.18), rgba(var(--accent-rgb), 0.06));
  color: var(--accent);
}

.grid-3 .card:nth-child(2) .card__icon {
  background: linear-gradient(135deg, rgba(var(--accent-2-rgb), 0.2), rgba(var(--accent-2-rgb), 0.07));
  color: #4a56a8;
}

.grid-3 .card:nth-child(3) .card__icon {
  background: linear-gradient(135deg, rgba(var(--accent-teal-rgb), 0.18), rgba(var(--accent-teal-rgb), 0.06));
  color: #237a65;
}

.grid-3 .card:nth-child(4) .card__icon {
  background: linear-gradient(135deg, rgba(217, 119, 6, 0.14), rgba(217, 119, 6, 0.05));
  color: #b45309;
}

.card h3 {
  margin: 0 0 var(--space-3);
  font-size: var(--text-lg);
  font-weight: 650;
  color: var(--text-heading);
  line-height: 1.35;
}

.card__head + p {
  margin-top: 0;
}

.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: var(--text-sm);
  line-height: 1.65;
}

/* —— 能力列表 —— */
.features {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
}

.feature-row {
  display: flex;
  gap: 1rem;
  padding: 1.1rem 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: border-color 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.feature-row > * {
  position: relative;
  z-index: 1;
}

.feature-row:hover {
  border-color: rgba(var(--accent-rgb), 0.18);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.feature-row__mark {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: rgba(var(--success-rgb), 0.1);
  color: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 700;
  transition: transform 0.32s cubic-bezier(0.22, 1, 0.36, 1);
}

.feature-row:hover .feature-row__mark {
  transform: scale(1.08);
}

.feature-row:nth-child(3n + 1) .feature-row__mark {
  background: rgba(var(--accent-bright-rgb), 0.12);
  color: #0369a1;
}

.feature-row:nth-child(3n + 2) .feature-row__mark {
  background: var(--accent-2-dim);
  color: #4338ca;
}

.feature-row:nth-child(3n) .feature-row__mark {
  background: var(--accent-teal-dim);
  color: #0f7668;
}

.feature-row h3 {
  margin: 0 0 0.2rem;
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--text-heading);
  line-height: 1.35;
}

.feature-row p {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--text-muted);
  line-height: 1.6;
}

/* —— 3.0 亮点 —— */
.highlights {
  display: grid;
  gap: 1.15rem;
}

@media (min-width: 900px) {
  .highlights {
    grid-template-columns: 1fr 1fr;
    gap: 1.35rem;
  }
}

.hl {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(155deg, #ffffff 0%, #f8fafc 100%);
  padding: 1.35rem 1.35rem 1.35rem 1.5rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.28s ease,
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.hl > * {
  position: relative;
  z-index: 1;
}

.hl:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(var(--accent-rgb), 0.14);
  transform: translateY(-3px);
}

.hl::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  z-index: 0;
  background: linear-gradient(180deg, var(--accent-bright), var(--accent-2));
  border-radius: 4px 0 0 4px;
  transition: width 0.28s ease, opacity 0.28s ease;
}

.hl:hover::before {
  width: 5px;
}

.hl:nth-child(1) {
  background: linear-gradient(158deg, #ffffff 0%, #eef3fb 100%);
}

.hl:nth-child(1)::before {
  background: linear-gradient(180deg, #8eb4ff, var(--accent-bright));
}

.hl:nth-child(1) .hl__tag {
  color: var(--accent);
  background: rgba(var(--accent-bright-rgb), 0.12);
}

.hl:nth-child(2) {
  background: linear-gradient(158deg, #ffffff 0%, #f0f2fb 100%);
}

.hl:nth-child(2)::before {
  background: linear-gradient(180deg, #a8b4ec, var(--accent-2));
}

.hl:nth-child(2) .hl__tag {
  color: #4a56a8;
  background: var(--accent-2-dim);
}

.hl:nth-child(3) {
  background: linear-gradient(158deg, #ffffff 0%, #f0faf7 100%);
}

.hl:nth-child(3)::before {
  background: linear-gradient(180deg, #6ecdb8, var(--accent-teal));
}

.hl:nth-child(3) .hl__tag {
  color: #237a65;
  background: var(--accent-teal-dim);
}

.hl:nth-child(4) {
  background: linear-gradient(158deg, #ffffff 0%, #fffbeb 100%);
}

.hl:nth-child(4)::before {
  background: linear-gradient(180deg, #fcd34d, #d97706);
}

.hl:nth-child(4) .hl__tag {
  color: #b45309;
  background: var(--accent-amber-dim);
}

.hl__tag {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-2);
  margin-bottom: 0.45rem;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  background: rgba(var(--accent-2-rgb), 0.08);
}

.hl h3 {
  margin: 0 0 0.45rem;
  font-size: 1.03rem;
  font-weight: 650;
  color: var(--text);
}

.hl p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.hl__link {
  display: inline-flex;
  align-items: center;
  margin-top: 0.8rem;
  font-size: 0.88rem;
  font-weight: 650;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(var(--accent-rgb), 0.38);
  padding-bottom: 0.1rem;
  width: fit-content;
  max-width: 100%;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.hl__link:hover {
  color: var(--accent-bright);
  border-color: rgba(var(--accent-bright-rgb), 0.55);
}

/* —— 场景 —— */
.scenarios {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
}

.scenario {
  padding: 1.15rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px dashed rgba(var(--accent-bright-rgb), 0.22);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.95), rgba(244, 247, 249, 0.55));
  position: relative;
  overflow: hidden;
  transition: border-color 0.28s ease, box-shadow 0.28s ease,
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1), background 0.28s ease;
}

.scenario > * {
  position: relative;
  z-index: 1;
}

.scenario:hover {
  border-color: rgba(var(--accent-bright-rgb), 0.38);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.scenario strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--text);
  font-size: 0.98rem;
}

.scenario span {
  font-size: 0.87rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.service-blocks {
  display: grid;
  gap: 1.15rem;
}

@media (min-width: 900px) {
  .service-blocks {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-block {
  position: relative;
  overflow: hidden;
  padding: 1.35rem 1.3rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.service-block > * {
  position: relative;
  z-index: 1;
}

.service-block:hover {
  border-color: rgba(var(--accent-rgb), 0.18);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.service-block::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 2;
  border-radius: var(--radius) var(--radius) 0 0;
  background: linear-gradient(90deg, var(--accent-bright), var(--accent-2));
  opacity: 0.95;
}

.service-block:nth-child(1)::before {
  background: linear-gradient(90deg, var(--accent-bright), #6b9fff);
}

.service-block:nth-child(2)::before {
  background: linear-gradient(90deg, #8e9eeb, var(--accent-2));
}

.service-block:nth-child(3)::before {
  background: linear-gradient(90deg, #5dc9b0, var(--accent-teal));
}

.service-block h3 {
  margin: 0 0 0.6rem;
  font-size: 1.02rem;
  color: var(--accent);
  font-weight: 650;
}

/* —— 使用与授权 —— */
.plan-grid {
  display: grid;
  gap: 1.15rem;
}

@media (min-width: 900px) {
  .plan-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 1.35rem 1.3rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.plan-card > * {
  position: relative;
  z-index: 1;
}

.plan-card:hover {
  border-color: rgba(var(--accent-rgb), 0.22);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.plan-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.65rem;
}

.plan-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
  padding: 0.22rem 0.65rem 0.22rem 0.5rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: 999px;
  line-height: 1.2;
}

.plan-card__badge .ui-icon {
  width: 0.85rem;
  height: 0.85rem;
}

.plan-card--free .plan-card__badge {
  color: #1a6b52;
  background: rgba(46, 160, 120, 0.14);
}

.plan-card--free .plan-card__badge .ui-icon {
  color: #2a8f7a;
}

.plan-card--enterprise .plan-card__badge {
  color: var(--accent);
  background: rgba(var(--accent-bright-rgb), 0.14);
}

.plan-card--enterprise .plan-card__badge .ui-icon {
  color: var(--accent-bright);
}

.plan-card--support .plan-card__badge {
  color: #4a56a8;
  background: var(--accent-2-dim);
}

.plan-card--support .plan-card__badge .ui-icon {
  color: #5a64b8;
}

.plan-card--free {
  border-color: rgba(46, 160, 120, 0.22);
  background: linear-gradient(165deg, #ffffff 0%, #f0faf6 100%);
}

.plan-card__head h3 {
  margin: 0;
  flex: 1 1 8rem;
  min-width: 0;
  font-size: 1.02rem;
  font-weight: 650;
  color: var(--text-heading);
  line-height: 1.35;
}

.plan-card p {
  margin: 0;
  flex: 1 1 auto;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.62;
}

.plan-card__link {
  display: inline-flex;
  align-items: center;
  margin-top: 0.9rem;
  font-size: 0.88rem;
  font-weight: 650;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(var(--accent-rgb), 0.35);
  padding-bottom: 0.08rem;
  width: fit-content;
  max-width: 100%;
}

.plan-card__link:hover {
  color: var(--accent-bright);
  border-color: rgba(var(--accent-bright-rgb), 0.5);
}

.plan-footnote {
  margin: 1.35rem auto 0;
  max-width: 42rem;
  text-align: center;
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--text-muted);
}

.service-block p {
  margin: 0;
  font-size: 0.93rem;
  color: var(--text-muted);
  line-height: 1.68;
}

.section--screenshots .section__head p {
  font-size: 0.93rem;
}

.screenshot-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
}

.screenshot-item {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.28s ease, box-shadow 0.28s ease,
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.screenshot-item > * {
  position: relative;
  z-index: 1;
}

.screenshot-item img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
}

.screenshot-item figcaption {
  margin: 0;
  padding: 0.45rem 0.65rem 0.55rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, #fbfcfe 0%, #f4f7f9 100%);
}

.screenshot-item:hover {
  border-color: rgba(var(--accent-rgb), 0.28);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.screenshot-item__open {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  font: inherit;
  color: inherit;
  cursor: zoom-in;
  -webkit-tap-highlight-color: transparent;
}

.screenshot-item__open:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 2px;
}

/* —— 截图大图（dialog） —— */
.shot-lightbox {
  width: 100%;
  max-width: 100%;
  height: 100%;
  max-height: 100%;
  margin: 0;
  padding: 0;
  border: none;
  background: transparent;
}

.shot-lightbox::backdrop {
  background: rgba(20, 26, 34, 0.78);
  backdrop-filter: blur(5px);
}

.shot-lightbox__viewport {
  box-sizing: border-box;
  min-height: 100dvh;
  min-width: 100%;
  padding: max(0.75rem, env(safe-area-inset-top, 0px))
    max(0.75rem, env(safe-area-inset-right, 0px))
    max(0.75rem, env(safe-area-inset-bottom, 0px))
    max(0.75rem, env(safe-area-inset-left, 0px));
  display: flex;
  align-items: center;
  justify-content: center;
}

.shot-lightbox__frame {
  position: relative;
  max-width: min(1160px, 94vw);
  max-height: min(90vh, calc(100dvh - 1.5rem));
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--border-strong);
}

.shot-lightbox__img {
  display: block;
  max-width: 100%;
  max-height: min(78vh, 800px);
  width: auto;
  height: auto;
  object-fit: contain;
  vertical-align: middle;
}

.shot-lightbox__caption {
  margin: 0;
  width: 100%;
  padding: 0.55rem 1rem 0.65rem;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  background: linear-gradient(180deg, #fbfcfe 0%, #f4f7f9 100%);
  border-top: 1px solid var(--border);
}

.shot-lightbox__close {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  z-index: 2;
  width: 2.35rem;
  height: 2.35rem;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--text);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.shot-lightbox__close:hover {
  background: #fff;
  border-color: rgba(var(--accent-rgb), 0.35);
  color: var(--accent);
}

.shot-lightbox__close:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 2px;
}

/* —— 技术脚注 —— */
.tech-note {
  margin-top: 2.25rem;
  padding: 1.15rem 1.25rem;
  border-radius: var(--radius-sm);
  background: rgba(var(--accent-rgb), 0.05);
  border: 1px solid rgba(var(--accent-rgb), 0.12);
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  line-height: 1.7;
}

.tech-note code {
  font-size: 0.85em;
  padding: 0.12em 0.4em;
  border-radius: 5px;
  background: rgba(15, 23, 42, 0.05);
  color: var(--accent);
}

/* —— 合作洽谈 —— */
.cta {
  text-align: center;
  padding: var(--section-py) var(--pad-x);
  background: linear-gradient(
    180deg,
    var(--surface-cta-contact) 0%,
    var(--surface-cta-contact-end) 100%
  );
  border-top: 1px solid var(--border-subtle);
  position: relative;
}

.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 75% 60% at 50% 0%,
    rgba(var(--accent-bright-rgb), 0.06),
    transparent 62%
  );
  pointer-events: none;
}

.cta > * {
  position: relative;
  z-index: 1;
}

.cta h2 {
  margin: 0 auto var(--space-4);
  padding-left: calc(0.75rem + 4px);
  width: fit-content;
  max-width: 100%;
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--text-heading);
  letter-spacing: -0.02em;
  line-height: 1.3;
  text-align: left;
  position: relative;
}

.cta h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.12em;
  bottom: 0.12em;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(
    180deg,
    var(--accent-bright),
    var(--accent-2) 55%,
    var(--accent-teal)
  );
}

.cta p:not(.cta__intro) {
  margin: 0 auto 1.5rem;
  max-width: 32rem;
  color: var(--text-muted);
}

.cta__intro {
  margin: 0 auto var(--space-6) !important;
  max-width: 40rem !important;
  color: var(--text-muted);
  font-size: var(--text-md);
  line-height: 1.65;
}

.cta--contact {
  padding-left: var(--pad-x);
  padding-right: var(--pad-x);
}

.contact-grid {
  --contact-label-w: 9rem;
  max-width: 40rem;
  margin: 0 auto 1.75rem;
  display: grid;
  gap: 0.65rem;
  text-align: left;
}

.contact-card {
  display: flex;
  align-items: stretch;
  gap: 0;
  min-height: 3.75rem;
  padding: 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: border-color 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.contact-card > * {
  position: relative;
  z-index: 1;
}

.contact-card:hover {
  border-color: rgba(var(--accent-rgb), 0.2);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.contact-card__label {
  flex: 0 0 var(--contact-label-w);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0.85rem 1rem 0.85rem 1.1rem;
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text-muted);
  text-align: right;
  text-transform: none;
  letter-spacing: 0.02em;
  border-right: 1px solid rgba(var(--accent-rgb), 0.12);
  background: linear-gradient(
    90deg,
    rgba(var(--accent-rgb), 0.03) 0%,
    rgba(var(--accent-rgb), 0.06) 100%
  );
}

.contact-card__body {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.2rem;
  padding: 0.85rem 1.15rem;
}

.contact-card__value {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
  word-break: break-word;
}

.contact-card__hint {
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--text-muted);
}

.contact-card__link {
  font-weight: 600;
}

.contact-card__link:hover {
  text-decoration: underline;
}

.contact-card--wechat {
  min-height: auto;
}

.contact-card__body--wechat {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-start;
  gap: 0.75rem 1.25rem;
  padding: 0.9rem 1.15rem;
}

.contact-card__wechat-text {
  flex: 1 1 10rem;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.contact-card--wechat .contact-card__value {
  font-size: 1.125rem;
  letter-spacing: 0.02em;
}

.contact-card__qr {
  margin: 0;
  padding: 0;
  flex-shrink: 0;
  text-align: center;
  border: none;
}

.contact-card__qr img {
  display: block;
  width: min(112px, 30vw);
  height: auto;
  aspect-ratio: 1;
  object-fit: contain;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
}

.contact-card__qr-cap {
  margin: 0.35rem 0 0;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

/* —— 卡片：进入视口显现 + 桌面指针悬停光泽（尊重减弱动效） —— */
@media (prefers-reduced-motion: no-preference) {
  .surface-reveal {
    animation: surface-reveal 0.72s cubic-bezier(0.16, 1, 0.3, 1) both;
  }

  .grid-3 .surface-reveal:nth-child(1) {
    animation-delay: 0.04s;
  }

  .grid-3 .surface-reveal:nth-child(2) {
    animation-delay: 0.1s;
  }

  .grid-3 .surface-reveal:nth-child(3) {
    animation-delay: 0.16s;
  }

  .grid-3 .surface-reveal:nth-child(4) {
    animation-delay: 0.22s;
  }

  .features .surface-reveal:nth-child(1) {
    animation-delay: 0.02s;
  }

  .features .surface-reveal:nth-child(2) {
    animation-delay: 0.05s;
  }

  .features .surface-reveal:nth-child(3) {
    animation-delay: 0.08s;
  }

  .features .surface-reveal:nth-child(4) {
    animation-delay: 0.11s;
  }

  .features .surface-reveal:nth-child(5) {
    animation-delay: 0.14s;
  }

  .features .surface-reveal:nth-child(6) {
    animation-delay: 0.17s;
  }

  .highlights .surface-reveal:nth-child(1) {
    animation-delay: 0.02s;
  }

  .highlights .surface-reveal:nth-child(2) {
    animation-delay: 0.06s;
  }

  .highlights .surface-reveal:nth-child(3) {
    animation-delay: 0.1s;
  }

  .highlights .surface-reveal:nth-child(4) {
    animation-delay: 0.14s;
  }

  .service-blocks .surface-reveal:nth-child(1) {
    animation-delay: 0.04s;
  }

  .service-blocks .surface-reveal:nth-child(2) {
    animation-delay: 0.1s;
  }

  .service-blocks .surface-reveal:nth-child(3) {
    animation-delay: 0.16s;
  }

  .plan-grid .surface-reveal:nth-child(1) {
    animation-delay: 0.04s;
  }

  .plan-grid .surface-reveal:nth-child(2) {
    animation-delay: 0.1s;
  }

  .plan-grid .surface-reveal:nth-child(3) {
    animation-delay: 0.16s;
  }

  .scenarios .surface-reveal:nth-child(1) {
    animation-delay: 0.02s;
  }

  .scenarios .surface-reveal:nth-child(2) {
    animation-delay: 0.05s;
  }

  .scenarios .surface-reveal:nth-child(3) {
    animation-delay: 0.08s;
  }

  .scenarios .surface-reveal:nth-child(4) {
    animation-delay: 0.11s;
  }

  .scenarios .surface-reveal:nth-child(5) {
    animation-delay: 0.14s;
  }

  .contact-grid .surface-reveal:nth-child(1) {
    animation-delay: 0.03s;
  }

  .contact-grid .surface-reveal:nth-child(2) {
    animation-delay: 0.06s;
  }

  .contact-grid .surface-reveal:nth-child(3) {
    animation-delay: 0.09s;
  }

  .contact-grid .surface-reveal:nth-child(4) {
    animation-delay: 0.12s;
  }

  .contact-grid .surface-reveal:nth-child(5) {
    animation-delay: 0.15s;
  }

  .contact-grid .surface-reveal:nth-child(6) {
    animation-delay: 0.18s;
  }

  .screenshot-grid .surface-reveal:nth-child(1) {
    animation-delay: 0.03s;
  }

  .screenshot-grid .surface-reveal:nth-child(2) {
    animation-delay: 0.07s;
  }

  .screenshot-grid .surface-reveal:nth-child(3) {
    animation-delay: 0.11s;
  }

  .screenshot-grid .surface-reveal:nth-child(4) {
    animation-delay: 0.15s;
  }

  .process-steps .surface-reveal:nth-child(1) {
    animation-delay: 0.03s;
  }

  .process-steps .surface-reveal:nth-child(2) {
    animation-delay: 0.08s;
  }

  .process-steps .surface-reveal:nth-child(3) {
    animation-delay: 0.13s;
  }

  .pillar-grid .surface-reveal:nth-child(1) {
    animation-delay: 0.02s;
  }

  .pillar-grid .surface-reveal:nth-child(2) {
    animation-delay: 0.05s;
  }

  .pillar-grid .surface-reveal:nth-child(3) {
    animation-delay: 0.08s;
  }

  .pillar-grid .surface-reveal:nth-child(4) {
    animation-delay: 0.11s;
  }

  .site-footer__cols .surface-reveal:nth-child(1) {
    animation-delay: 0.02s;
  }

  .site-footer__cols .surface-reveal:nth-child(2) {
    animation-delay: 0.05s;
  }

  .site-footer__cols .surface-reveal:nth-child(3) {
    animation-delay: 0.08s;
  }
}

@media (hover: hover) and (pointer: fine) and (prefers-reduced-motion: no-preference) {
  .card::after,
  .hl::after,
  .feature-row::after,
  .service-block::after,
  .plan-card::after,
  .scenario::after,
  .contact-card::after,
  .process-step::after,
  .pillar-card::after,
  .screenshot-item::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background: linear-gradient(
      105deg,
      transparent 38%,
      rgba(255, 255, 255, 0) 44%,
      rgba(255, 255, 255, 0.38) 50%,
      rgba(255, 255, 255, 0) 56%,
      transparent 62%
    );
    transform: translateX(-120%);
    opacity: 0;
    transition: opacity 0s linear, transform 0s linear;
  }

  .card:hover::after,
  .hl:hover::after,
  .feature-row:hover::after,
  .service-block:hover::after,
  .plan-card:hover::after,
  .scenario:hover::after,
  .contact-card:hover::after,
  .process-step:hover::after,
  .pillar-card:hover::after,
  .screenshot-item:hover::after {
    opacity: 1;
    transform: translateX(120%);
    transition: transform 0.75s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.2s ease;
  }
}

/* —— 更新日志页 —— */
.page-update .section__inner--changelog {
  max-width: 44rem;
}

.page-update__lead {
  padding-top: clamp(1.5rem, 4vw, 2.25rem);
  padding-bottom: clamp(1rem, 2.5vw, 1.5rem);
}

.page-update__body {
  padding-top: clamp(1.25rem, 3vw, 2rem);
  padding-bottom: clamp(2rem, 5vw, 3rem);
}

.changelog-toc {
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
}

.changelog-toc__label {
  margin: 0 0 0.5rem;
  font-size: 0.82rem;
  font-weight: 650;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.changelog-toc a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 2.35rem;
  padding: 0.45rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text);
  text-align: center;
  text-decoration: none;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease,
    transform 0.2s ease;
}

.changelog-toc a:hover {
  border-color: rgba(var(--accent-rgb), 0.22);
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.05);
}

.changelog {
  display: flex;
  flex-direction: column;
  gap: clamp(1.35rem, 3vw, 2rem);
}

.changelog-item {
  margin: 0;
  padding: 1.15rem 1.25rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
}

.changelog-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.35rem 1rem;
  margin-bottom: 0.65rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--border);
}

.changelog-item__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 650;
  color: var(--text-heading);
}

.changelog-item__date {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.changelog-item__list {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--text-muted);
  font-size: 0.93rem;
  line-height: 1.7;
}

.changelog-item__list li + li {
  margin-top: 0.35rem;
}

.changelog-note {
  margin: 0 0 1.35rem;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  background: rgba(var(--accent-rgb), 0.06);
  border: 1px solid rgba(var(--accent-rgb), 0.12);
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.changelog-note code {
  font-size: 0.84em;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  background: rgba(var(--accent-rgb), 0.08);
}

.changelog-item__list code {
  font-size: 0.86em;
  padding: 0.08em 0.3em;
  border-radius: 4px;
  background: rgba(15, 28, 48, 0.06);
}

.changelog-back {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.65rem 0.75rem;
  margin: 2.25rem 0 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

@media (max-width: 520px) {
  .changelog-toc {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.nav a.nav__here {
  color: var(--accent);
  font-weight: 650;
  background: rgba(var(--accent-rgb), 0.1);
  box-shadow: inset 0 0 0 1px rgba(var(--accent-rgb), 0.14);
}

.nav a.nav__here:hover {
  color: var(--accent);
  text-decoration: none;
  background: rgba(var(--accent-rgb), 0.14);
}

/* —— 页脚 —— */
.site-footer {
  flex-shrink: 0;
  padding: 2rem var(--pad-x);
  padding-bottom: max(2rem, env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--border-subtle);
  text-align: center;
  font-size: 0.84rem;
  color: var(--text-muted);
  background: linear-gradient(
    180deg,
    var(--surface-footer-top) 0%,
    var(--surface-footer-bottom) 100%
  );
  position: relative;
}

.site-footer::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(var(--accent-bright-rgb), 0.32) 25%,
    rgba(var(--accent-2-rgb), 0.24) 55%,
    rgba(var(--accent-teal-rgb), 0.22) 80%,
    transparent
  );
  pointer-events: none;
}

.site-footer__inner {
  position: relative;
  z-index: 1;
  max-width: var(--content-max);
  margin: 0 auto;
}

.site-footer__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem 2.5rem;
  text-align: left;
  margin-bottom: 1.75rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

@media (max-width: 720px) {
  .site-footer__cols {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

.footer-col__title {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-heading);
}

.footer-col__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-col__list li {
  margin: 0 0 0.42rem;
}

.footer-col__list a {
  color: var(--accent);
  font-size: 0.88rem;
}

.footer-col__list a:hover {
  color: var(--accent-bright);
}

.site-footer__tagline {
  margin: 0 0 0.85rem;
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.site-footer strong {
  color: var(--text);
  font-weight: 600;
}

.site-footer__legal {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.65rem 1.15rem;
  font-size: 0.78rem;
}

.site-footer__legal a {
  color: var(--accent);
}

.site-footer__disclaimer {
  margin-top: 0.65rem;
  font-size: 0.76rem;
  opacity: 0.88;
}

/* —— 平板/手机：汉堡菜单收起主导航 —— */
@media (max-width: 1023px) {
  html {
    scroll-padding-top: 4.75rem;
  }

  .site-header__inner {
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem 0.75rem;
    padding-bottom: 0.6rem;
  }

  .brand--pjman {
    min-width: 0;
    flex: 1 1 auto;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    display: none;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    flex-basis: 100%;
    max-width: none;
    overflow: visible;
    flex-wrap: nowrap;
    gap: 0.25rem;
    padding: 0.5rem 0.55rem;
    margin-top: 0.15rem;
    background: linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.98) 0%,
      rgba(241, 245, 249, 0.96) 100%
    );
    border: 1px solid rgba(15, 23, 42, 0.1);
    border-radius: 14px;
    box-shadow: 0 8px 28px rgba(15, 23, 42, 0.08);
    scrollbar-width: none;
  }

  .nav::-webkit-scrollbar {
    display: none;
  }

  .site-header.is-nav-open .nav {
    display: flex;
  }

  .site-header.is-nav-open .nav-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .site-header.is-nav-open .nav-toggle__bar:nth-child(2) {
    opacity: 0;
    transform: scaleX(0.2);
  }

  .site-header.is-nav-open .nav-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .nav a {
    white-space: normal;
    text-align: center;
    padding: 0.65rem 0.75rem;
    border-radius: 11px;
    font-size: 0.92rem;
  }

  .nav a.nav__cta {
    margin-top: 0.2rem;
    justify-content: center;
    width: 100%;
  }
}

/* —— 响应式：触控与窄屏 —— */
@media (max-width: 640px) {
  .hero h1,
  .hero__subtitle {
    max-width: none;
  }

  .hero__actions,
  .hero__actions--center {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions .btn,
  .hero__actions--center .btn {
    width: 100%;
  }

  .strip__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.65rem;
  }

  .strip__item + .strip__item {
    border-left: none !important;
    padding-left: 0 !important;
    margin-left: 0 !important;
  }

  .section {
    padding-left: max(var(--pad-x), env(safe-area-inset-left, 0px));
    padding-right: max(var(--pad-x), env(safe-area-inset-right, 0px));
  }
}

@media (max-width: 520px) {
  .contact-grid {
    --contact-label-w: auto;
  }

  .contact-card {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-card__label {
    flex: none;
    justify-content: flex-start;
    text-align: left;
    padding: 0.65rem 1rem 0.5rem;
    border-right: none;
    border-bottom: 1px solid rgba(var(--accent-rgb), 0.1);
    background: rgba(var(--accent-rgb), 0.04);
  }

  .contact-card__body {
    padding: 0.75rem 1rem 0.9rem;
  }

  .contact-card__body--wechat {
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.65rem 0.85rem;
    padding: 0.65rem 0.85rem 0.7rem;
  }

  .contact-card__wechat-text {
    flex: 1 1 auto;
    flex-grow: 0;
  }

  .contact-card__qr {
    align-self: center;
    flex-shrink: 0;
  }

  .contact-card__qr img {
    width: 5.5rem;
  }

  .contact-card__qr-cap {
    margin-top: 0.25rem;
  }
}

@media (max-width: 360px) {
  .contact-card__body--wechat {
    flex-direction: column;
    align-items: stretch;
    gap: 0.45rem;
    padding: 0.6rem 0.85rem 0.65rem;
  }

  .contact-card__qr {
    align-self: center;
  }

  .contact-card__qr img {
    width: 5.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .shot-lightbox::backdrop {
    backdrop-filter: none;
  }

  html {
    scroll-behavior: auto;
  }

  .btn,
  .card,
  .hl,
  .card__icon,
  .feature-row,
  .feature-row__mark,
  .service-block,
  .plan-card,
  .scenario,
  .contact-card,
  .screenshot-item {
    transition: none !important;
  }

  .hero-carousel__slide {
    transition: none !important;
  }

  .card:hover,
  .hl:hover,
  .feature-row:hover,
  .service-block:hover,
  .plan-card:hover,
  .scenario:hover,
  .contact-card:hover,
  .screenshot-item:hover,
  .btn:active {
    transform: none !important;
  }

  .card:hover .card__icon,
  .pillar-card:hover .pillar-card__icon,
  .feature-row:hover .feature-row__mark {
    transform: none !important;
  }

  .hl:hover::before {
    width: 4px;
  }

  .surface-reveal {
    animation: none !important;
  }

  .nav-toggle__bar {
    transition: none !important;
  }
}