/* ==========================================================================
   立立继开 · lilijk.com 官网设计系统
   基调：深空科技感（深底 + 品牌青绿 #09CBA9 + 靛蓝点缀）
   ========================================================================== */

/* ---------------------------------------------------------------- Tokens */
:root {
  /* 底色与表面 */
  --bg: #04070d;
  --bg-2: #070c15;
  --surface-1: rgba(255, 255, 255, 0.032);
  --surface-2: rgba(255, 255, 255, 0.055);
  --surface-3: rgba(255, 255, 255, 0.085);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);

  /* 品牌与语义色 */
  --brand: #09cba9;
  --brand-2: #23e8c6;
  --brand-deep: #05796a;
  --brand-glow: rgba(9, 203, 169, 0.4);
  --accent: #6366f1;
  --accent-2: #a78bfa;
  --warn: #f59e0b;
  --rose: #fb7185;

  /* 文字 */
  --fg: #e9eff7;
  --fg-dim: #a3b2c6;
  --fg-mute: #6b7c93;
  --fg-faint: #4a5a70;

  /* 渐变 */
  --grad-brand: linear-gradient(120deg, #23e8c6 0%, #09cba9 45%, #38bdf8 100%);
  --grad-brand-soft: linear-gradient(120deg, rgba(35, 232, 198, 0.16), rgba(99, 102, 241, 0.16));
  --grad-text: linear-gradient(100deg, #ffffff 0%, #d6fbf3 40%, #23e8c6 100%);

  /* 尺寸 */
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --shell: 1240px;
  --header-h: 72px;

  /* 阴影 */
  --shadow-1: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-2: inset 0 1px 0 rgba(255, 255, 255, 0.07), 0 18px 40px -18px rgba(0, 0, 0, 0.8);
  --shadow-3: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 40px 80px -32px rgba(0, 0, 0, 0.95);
  --shadow-brand: 0 20px 60px -20px rgba(9, 203, 169, 0.45);

  /* 动效 */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-io: cubic-bezier(0.4, 0, 0.2, 1);

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* ---- 字号层级（主次分明：标题厚重收紧，说明文字小而疏朗）---- */
  --fs-display: clamp(2.3rem, 5.2vw, 3.8rem);   /* 页面主标题 */
  --fs-h2: clamp(1.65rem, 2.9vw, 2.45rem);      /* 区块标题 */
  --fs-h3: 1.2rem;                              /* 卡片 / 条目标题 */
  --fs-h4: 1.02rem;                             /* 小标题 */
  --fs-lede: clamp(0.98rem, 1.15vw, 1.08rem);   /* 导语 */
  --fs-body: 0.9375rem;                         /* 正文（15px） */
  --fs-sm: 0.85rem;                             /* 说明文字（13.6px） */
  --fs-xs: 0.775rem;                            /* 元信息 / 标签（12.4px） */

  /* 正文用色比标题淡一档，进一步拉开层次 */
  --fg-body: #9db0c6;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

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

h1,
h2,
h3,
h4,
h5 {
  margin: 0;
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.015em;
}

p {
  margin: 0;
}

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

::selection {
  background: rgba(9, 203, 169, 0.32);
  color: #fff;
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: #05080f;
}
::-webkit-scrollbar-thumb {
  background: #1d2a3a;
  border-radius: 6px;
  border: 2px solid #05080f;
}
::-webkit-scrollbar-thumb:hover {
  background: #2b3d52;
}

/* ---------------------------------------------------------------- 氛围背景 */
.bg-fx {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.bg-fx::before {
  /* 蓝图刻线网格 */
  content: "";
  position: absolute;
  inset: -2px;
  background-image: linear-gradient(rgba(120, 200, 220, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 200, 220, 0.055) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(ellipse 120% 80% at 50% 0%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 120% 80% at 50% 0%, #000 0%, transparent 78%);
}

.bg-fx .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.5;
  will-change: transform;
}

.bg-fx .orb-1 {
  width: 620px;
  height: 620px;
  top: -240px;
  left: -140px;
  background: radial-gradient(circle, rgba(9, 203, 169, 0.5), transparent 68%);
  animation: drift-a 26s var(--ease-io) infinite alternate;
}

.bg-fx .orb-2 {
  width: 560px;
  height: 560px;
  top: 6%;
  right: -180px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.45), transparent 68%);
  animation: drift-b 32s var(--ease-io) infinite alternate;
  opacity: 0.4;
}

.bg-fx .orb-3 {
  width: 700px;
  height: 700px;
  bottom: -320px;
  left: 32%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.22), transparent 70%);
  animation: drift-c 38s var(--ease-io) infinite alternate;
  opacity: 0.35;
}

@keyframes drift-a {
  to {
    transform: translate3d(120px, 90px, 0) scale(1.12);
  }
}
@keyframes drift-b {
  to {
    transform: translate3d(-110px, 130px, 0) scale(1.08);
  }
}
@keyframes drift-c {
  to {
    transform: translate3d(80px, -90px, 0) scale(1.1);
  }
}

.noise {
  position: absolute;
  inset: 0;
  opacity: 0.028;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------------------------------------------------------------- 布局 */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

main {
  position: relative;
  z-index: 1;
}

section {
  position: relative;
}

.sec {
  padding: 104px 0;
}

.sec-sm {
  padding: 72px 0;
}

.sec-line {
  border-top: 1px solid var(--line);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

/* ----------------------------------------------------------------
   以下语义类由原先直接写在页面上的内联 style 提取而来。
   内联样式优先级最高（高于任何选择器），会直接压过响应式规则，
   导致窄屏仍保持多列：实测 product.html 在 375px 下仍是 5 列，
   每张卡片文字列只剩 2px 宽、每行只能排一个字。
   这类问题不产生横向滚动，溢出检查抓不到，必须靠「横向压垮」检查。
   ---------------------------------------------------------------- */
.grid-5 {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 20px;
}

.gallery--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 34px 0 0;
}

/* 双栏图文（右侧或左侧为截图），窄屏改为上下堆叠 */
.media-split {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 38px;
  align-items: center;
}
.media-split--rev {
  grid-template-columns: 1fr 1.15fr;
}

/* 左右等分（如「痛点 / 对策」对照），窄屏堆叠 */
.split--half {
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

/* 侧栏堆叠：固定 min-width 在手机上会撑破容器，故窄屏取消该下界 */
.side-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 250px;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1.08fr;
  gap: 52px;
  align-items: center;
}

/* 右侧是界面截图时，自动把宽度让给截图，避免被压到看不清。
   用 :has() 按内容自动判定，无需逐个页面加类；.split--media 可显式指定。

   ⚠️ 必须包在 min-width 里，不能无条件生效：
   `.split:has(...)` 的特异性是 (0,3,0)，而窄屏兜底规则
   `.split { grid-template-columns: 1fr }`（见下方 1080 断点）只有 (0,1,0)。
   特异性更高的规则会无视媒体查询继续生效，导致手机上仍是两列，
   文字列被压到几十像素宽、每行只能排一个字（实测 product/solutions 页
   文字列仅剩 32~39px）。这类问题不产生横向滚动，溢出检查抓不到。 */
@media (min-width: 1081px) {
  .split:has(> :last-child .browser),
  .split:has(> :last-child figure),
  .split--media {
    grid-template-columns: 0.9fr 1.2fr;
    gap: 46px;
  }

  /* 双截图/双图并排时，文字侧再收窄一档 */
  .split:has(> :last-child .grid-2) {
    grid-template-columns: 0.95fr 1.15fr;
  }
}

/* 文案在上、整屏截图在下：截图获得约 1180px 宽，接近原始分辨率 */
.showcase {
  margin-top: 46px;
}

.showcase .browser img {
  width: 100%;
}

.showcase-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

/* ---------------------------------------------------------------- 文本工具 */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 18px;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--brand));
}

.eyebrow.center::after {
  content: "";
  width: 22px;
  height: 1px;
  background: linear-gradient(90deg, var(--brand), transparent);
}

.sec-head {
  max-width: 820px;
  margin-bottom: 54px;
}

.sec-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.sec-head.center .eyebrow {
  justify-content: center;
}

h1.display {
  font-size: var(--fs-display);
  line-height: 1.12;
  letter-spacing: -0.032em;
  font-weight: 700;
}

h2.title {
  font-size: var(--fs-h2);
  line-height: 1.2;
  letter-spacing: -0.026em;
  font-weight: 700;
}

h3.sub {
  font-size: clamp(1.1rem, 1.6vw, 1.32rem);
  letter-spacing: -0.018em;
}

.lede {
  font-size: var(--fs-lede);
  color: var(--fg-dim);
  line-height: 1.85;
  margin-top: 20px;
}

.muted {
  color: var(--fg-dim);
}
.mute-2 {
  color: var(--fg-mute);
}

.grad {
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand-c {
  color: var(--brand);
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.measure {
  max-width: 68ch;
}

/* ---------------------------------------------------------------- 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.btn svg {
  width: 18px;
  height: 18px;
  flex: none;
}

.btn-primary {
  background: var(--grad-brand);
  color: #03211c;
  box-shadow: 0 14px 34px -14px rgba(9, 203, 169, 0.75);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 44px -14px rgba(9, 203, 169, 0.9);
}

.btn-ghost {
  border: 1px solid var(--line-strong);
  background: var(--surface-1);
  color: var(--fg);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover {
  border-color: rgba(9, 203, 169, 0.55);
  color: var(--brand-2);
  transform: translateY(-2px);
  background: rgba(9, 203, 169, 0.08);
}

.btn-sm {
  height: 40px;
  padding: 0 18px;
  font-size: 14px;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--brand);
  font-weight: 600;
  font-size: 14.5px;
  transition: gap 0.25s var(--ease), color 0.25s var(--ease);
}
.link-arrow:hover {
  gap: 13px;
  color: var(--brand-2);
}
.link-arrow svg {
  width: 16px;
  height: 16px;
}

/* ---------------------------------------------------------------- 卡片 */
.card {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.014));
  box-shadow: var(--shadow-2);
  padding: 30px;
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease),
    box-shadow 0.4s var(--ease);
}

.card::after {
  /* 顶部内高光 */
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.22), transparent);
}

.card-hover:hover {
  transform: translateY(-5px);
  border-color: rgba(9, 203, 169, 0.4);
  box-shadow: var(--shadow-3), 0 0 0 1px rgba(9, 203, 169, 0.12);
}

.card-glow::before {
  content: "";
  position: absolute;
  width: 240px;
  height: 240px;
  right: -90px;
  top: -110px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(9, 203, 169, 0.3), transparent 70%);
  opacity: 0;
  transition: opacity 0.45s var(--ease);
  pointer-events: none;
}
.card-glow:hover::before {
  opacity: 1;
}

.icon-badge {
  width: 52px;
  height: 52px;
  border-radius: 15px;
  display: grid;
  place-items: center;
  background: var(--grad-brand-soft);
  border: 1px solid rgba(9, 203, 169, 0.28);
  color: var(--brand-2);
  margin-bottom: 22px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.icon-badge svg {
  width: 25px;
  height: 25px;
}

.icon-badge.indigo {
  border-color: rgba(99, 102, 241, 0.35);
  color: #a5b4fc;
  background: linear-gradient(120deg, rgba(99, 102, 241, 0.18), rgba(167, 139, 250, 0.1));
}

.card h3 {
  font-size: var(--fs-h3);
  font-weight: 650;
  letter-spacing: -0.018em;
  line-height: 1.35;
  margin-bottom: 10px;
}

.card p {
  color: var(--fg-body);
  font-size: var(--fs-sm);
  line-height: 1.82;
}

/* ---------------------------------------------------------------- 头部导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  z-index: 100;
  display: flex;
  align-items: center;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease),
    backdrop-filter 0.35s var(--ease);
  border-bottom: 1px solid transparent;
}

.site-header.is-stuck {
  background: rgba(6, 10, 17, 0.82);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom-color: var(--line);
}

.site-header .shell {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.brand svg.mark,
.brand img.mark {
  width: 26px;
  height: 32px;
  object-fit: contain;
  flex: none;
}

.brand img.mark {
  filter: drop-shadow(0 0 12px rgba(9, 203, 169, 0.5));
}

.brand .brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand .brand-text b {
  font-size: 16px;
  letter-spacing: 0.04em;
  font-weight: 700;
}

.brand .brand-text span {
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--fg-mute);
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.nav a {
  position: relative;
  padding: 9px 15px;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--fg-dim);
  transition: color 0.25s var(--ease), background 0.25s var(--ease);
}

.nav a:hover {
  color: var(--fg);
  background: var(--surface-2);
}

.nav a.active {
  color: var(--brand-2);
  background: rgba(9, 203, 169, 0.1);
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
}

.header-tel {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--fg);
  padding: 9px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-1);
  transition: all 0.25s var(--ease);
}
.header-tel:hover {
  border-color: rgba(9, 203, 169, 0.5);
  color: var(--brand-2);
}
.header-tel svg {
  width: 15px;
  height: 15px;
  color: var(--brand);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--surface-1);
  place-items: center;
}
.nav-toggle svg {
  width: 20px;
  height: 20px;
}

/* 移动端抽屉 */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(4, 7, 13, 0.96);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  padding: 24px;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.45s var(--ease), opacity 0.3s var(--ease);
}

.drawer.open {
  transform: none;
  opacity: 1;
  pointer-events: auto;
}

.drawer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 30px;
}

.drawer nav {
  display: flex;
  flex-direction: column;
  margin: 0;
}

.drawer nav a {
  font-size: 21px;
  font-weight: 600;
  padding: 17px 4px;
  border-bottom: 1px solid var(--line);
  color: var(--fg);
}

.drawer .btn {
  margin-top: 30px;
  width: 100%;
}

/* ---------------------------------------------------------------- Hero */
.hero {
  padding: calc(var(--header-h) + 92px) 0 96px;
  overflow: hidden;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(9, 203, 169, 0.3);
  background: rgba(9, 203, 169, 0.07);
  font-size: 13px;
  color: #b8f5e8;
  margin-bottom: 26px;
}

.hero-badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(9, 203, 169, 0.18);
  animation: pulse 2.4s var(--ease-io) infinite;
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 4px rgba(9, 203, 169, 0.18);
  }
  50% {
    box-shadow: 0 0 0 9px rgba(9, 203, 169, 0.02);
  }
}

.hero h1 {
  max-width: 15ch;
}

.hero .lede {
  max-width: 60ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 40px;
  font-size: 13.5px;
  color: var(--fg-mute);
}

.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-trust svg {
  width: 15px;
  height: 15px;
  color: var(--brand);
}

/* 数据条 */
.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin-top: 70px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--line);
  overflow: hidden;
}

.stat {
  background: linear-gradient(170deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.012));
  padding: 26px 24px;
}

.stat b {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.stat b em {
  font-style: normal;
  font-size: 0.55em;
  color: var(--brand);
  margin-left: 3px;
}

.stat > span {
  display: block;
  margin-top: 8px;
  font-size: var(--fs-xs);
  color: var(--fg-mute);
}

.stat b > span {
  display: inline;
  font-size: inherit;
  color: inherit;
}

/* ---------------------------------------------------------------- 浏览器窗口（产品截图） */
.browser {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-strong);
  background: #080d16;
  box-shadow: var(--shadow-3), 0 0 0 1px rgba(9, 203, 169, 0.08);
  overflow: hidden;
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 15px;
  background: rgba(255, 255, 255, 0.045);
  border-bottom: 1px solid var(--line);
}

.browser-bar i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #2a3646;
  display: block;
}
.browser-bar i:nth-child(1) {
  background: #3a4658;
}

.browser-url {
  margin-left: 12px;
  flex: 1;
  height: 24px;
  border-radius: 7px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  padding: 0 11px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--fg-mute);
  overflow: hidden;
  white-space: nowrap;
}

.browser img {
  width: 100%;
  display: block;
}

/* 截图切换 tabs */
.shot-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.shot-tab {
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-1);
  font-size: 13.5px;
  color: var(--fg-dim);
  transition: all 0.28s var(--ease);
}

.shot-tab:hover {
  color: var(--fg);
  border-color: var(--line-strong);
}

.shot-tab.active {
  background: rgba(9, 203, 169, 0.14);
  border-color: rgba(9, 203, 169, 0.5);
  color: var(--brand-2);
}

.shot-panes {
  position: relative;
}

.shot-pane {
  display: none;
}

.shot-pane.active {
  display: block;
  animation: fade-up 0.5s var(--ease);
}

.shot-caption {
  margin-top: 16px;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--fg-body);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.shot-caption svg {
  width: 17px;
  height: 17px;
  color: var(--brand);
  margin-top: 3px;
  flex: none;
}

/* ---------------------------------------------------------------- 能力列表 */
.cap-list {
  display: grid;
  gap: 14px;
}

.cap {
  display: flex;
  gap: 18px;
  padding: 22px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease);
}

.cap:hover {
  border-color: rgba(9, 203, 169, 0.38);
  transform: translateX(4px);
}

.cap-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--brand);
  padding-top: 3px;
  flex: none;
  width: 30px;
}

.cap h3 {
  font-size: var(--fs-h3);
  font-weight: 650;
  letter-spacing: -0.018em;
  line-height: 1.35;
  margin-bottom: 9px;
}

.cap p {
  font-size: var(--fs-sm);
  line-height: 1.82;
  color: var(--fg-body);
}

/* 标签 */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tag {
  font-size: 12.5px;
  padding: 5px 11px;
  border-radius: 7px;
  border: 1px solid rgba(9, 203, 169, 0.24);
  background: rgba(9, 203, 169, 0.07);
  color: #9df0dd;
}

.tag.indigo {
  border-color: rgba(129, 140, 248, 0.28);
  background: rgba(99, 102, 241, 0.09);
  color: #c7cbfb;
}

/* ---------------------------------------------------------------- 表格 */
.table-wrap {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  overflow: hidden;
  overflow-x: auto;
  background: rgba(255, 255, 255, 0.02);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--fs-sm);
  min-width: 720px;
}

thead th {
  text-align: left;
  padding: 16px 20px;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--fg-mute);
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

tbody td {
  padding: 15px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--fg-body);
  vertical-align: top;
  line-height: 1.75;
}

tbody tr:last-child td {
  border-bottom: 0;
}

tbody tr:hover td {
  background: rgba(9, 203, 169, 0.035);
}

td.hl,
th.hl {
  color: #fff;
  font-weight: 600;
  background: rgba(9, 203, 169, 0.055);
}

.yes {
  color: var(--brand-2);
  font-weight: 700;
}
.no {
  color: var(--fg-faint);
}
.mid {
  color: var(--warn);
}

/* ---------------------------------------------------------------- 案例卡 */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.case-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.012));
  overflow: hidden;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.case-card:hover {
  transform: translateY(-6px);
  border-color: rgba(9, 203, 169, 0.42);
  box-shadow: var(--shadow-3);
}

.case-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #0a1019;
}

.case-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}

.case-card:hover .case-thumb img {
  transform: scale(1.06);
}

.case-thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 42%, rgba(4, 7, 13, 0.92));
}

.case-cat {
  position: absolute;
  left: 14px;
  top: 14px;
  z-index: 2;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 5px 11px;
  border-radius: 7px;
  background: rgba(4, 7, 13, 0.72);
  border: 1px solid rgba(9, 203, 169, 0.4);
  color: var(--brand-2);
  backdrop-filter: blur(8px);
}

.case-body {
  padding: 22px 24px 26px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.case-body h3 {
  font-size: var(--fs-h3);
  font-weight: 650;
  letter-spacing: -0.018em;
  line-height: 1.38;
  margin-bottom: 10px;
}

.case-body p {
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--fg-body);
  flex: 1;
}

.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 16px;
  padding-top: 15px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 12.5px;
  color: var(--fg-mute);
  font-family: var(--font-mono);
}

/* 分类筛选 */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 38px;
}

.chip {
  padding: 9px 17px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-1);
  font-size: 13.5px;
  color: var(--fg-dim);
  transition: all 0.28s var(--ease);
}

.chip:hover {
  color: var(--fg);
  border-color: var(--line-strong);
}

.chip.active {
  background: rgba(9, 203, 169, 0.14);
  border-color: rgba(9, 203, 169, 0.5);
  color: var(--brand-2);
}

/* ---------------------------------------------------------------- 图集 */
.gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.gallery figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 4 / 3;
  background: #0a1019;
}

.gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease), filter 0.5s var(--ease);
  filter: saturate(0.92);
}

.gallery figure:hover img {
  transform: scale(1.07);
  filter: saturate(1.06);
}

.gallery .wide {
  grid-column: span 2;
}

/* ---------------------------------------------------------------- 时间线 */
.timeline {
  position: relative;
  padding-left: 34px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--brand-deep) 8%, var(--brand-deep) 92%, transparent);
}

.tl-item {
  position: relative;
  padding-bottom: 34px;
}

.tl-item:last-child {
  padding-bottom: 0;
}

.tl-item::before {
  content: "";
  position: absolute;
  left: -31px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(9, 203, 169, 0.14);
}

.tl-item time {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--brand);
  font-weight: 600;
}

.tl-item h3 {
  font-size: 1.05rem;
  margin: 7px 0 8px;
}

.tl-item p {
  color: var(--fg-dim);
  font-size: 14.4px;
}

/* ---------------------------------------------------------------- 合作伙伴 */
.logo-wall {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.logo-cell {
  background: #060a11;
  aspect-ratio: 16 / 10;
  display: grid;
  place-items: center;
  padding: 20px;
  transition: background 0.35s var(--ease);
}

.logo-cell:hover {
  background: #eef3f6;
}

.logo-cell img {
  max-width: 100%;
  max-height: 54px;
  width: auto;
  object-fit: contain;
  /* 深底反相：把深色标识统一转为浅色，保持灰度以弱化品牌色冲突 */
  filter: grayscale(1) invert(1) contrast(1.05);
  opacity: 0.72;
  transition: filter 0.4s var(--ease), opacity 0.4s var(--ease);
}

.logo-cell:hover img {
  filter: none;
  opacity: 1;
}

/* ---------------------------------------------------------------- 应用入口 */
.app-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.app-card {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.012));
  padding: 30px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.app-card:hover {
  transform: translateY(-6px);
  border-color: rgba(9, 203, 169, 0.45);
  box-shadow: var(--shadow-3);
}

.app-card .domain {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--brand);
  padding: 5px 10px;
  border-radius: 7px;
  background: rgba(9, 203, 169, 0.09);
  border: 1px solid rgba(9, 203, 169, 0.22);
  align-self: flex-start;
  margin-bottom: 18px;
}

.app-card h3 {
  font-size: var(--fs-h3);
  font-weight: 650;
  letter-spacing: -0.018em;
  line-height: 1.35;
  margin-bottom: 10px;
}

.app-card p {
  color: var(--fg-body);
  font-size: var(--fs-sm);
  line-height: 1.82;
  flex: 1;
}

.app-card .go {
  margin-top: 22px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-2);
}

.app-card .go svg {
  width: 15px;
  height: 15px;
  transition: transform 0.3s var(--ease);
}

.app-card:hover .go svg {
  transform: translate(3px, -3px);
}

/* ---------------------------------------------------------------- CTA 区块 */
.cta-band {
  position: relative;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(9, 203, 169, 0.28);
  background: radial-gradient(120% 140% at 12% 0%, rgba(9, 203, 169, 0.2), transparent 58%),
    radial-gradient(120% 140% at 92% 100%, rgba(99, 102, 241, 0.22), transparent 58%),
    linear-gradient(160deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015));
  padding: 60px;
  overflow: hidden;
  box-shadow: var(--shadow-3);
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(120, 200, 220, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 200, 220, 0.05) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 80% 100% at 50% 50%, #000, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 100% at 50% 50%, #000, transparent 75%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.4fr auto;
  gap: 44px;
  align-items: center;
}

/* ---------------------------------------------------------------- 页脚 */
.site-footer {
  position: relative;
  z-index: 1;
  margin-top: 40px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(6, 10, 17, 0.6), rgba(4, 7, 13, 0.95));
  padding: 66px 0 34px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 46px;
  border-bottom: 1px solid var(--line);
}

.footer-brand p {
  color: var(--fg-mute);
  font-size: 14px;
  margin-top: 18px;
  max-width: 34ch;
}

.footer-col h4 {
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-mute);
  font-weight: 600;
  margin-bottom: 18px;
}

.footer-col a,
.footer-col span {
  display: block;
  font-size: 14px;
  color: var(--fg-dim);
  padding: 6px 0;
  transition: color 0.25s var(--ease);
}

.footer-col a:hover {
  color: var(--brand-2);
}

.footer-col .tel {
  font-family: var(--font-mono);
  font-size: 19px;
  color: #fff;
  font-weight: 700;
  padding: 4px 0 10px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  justify-content: space-between;
  align-items: center;
  padding-top: 26px;
  font-size: 13px;
  color: var(--fg-faint);
}

.footer-bottom a {
  color: var(--fg-mute);
}
.footer-bottom a:hover {
  color: var(--brand);
}

.icp {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  align-items: center;
}

.icp .sep {
  color: #1f2c3c;
}

/* ---------------------------------------------------------------- 浮动联系 */
.float-cta {
  position: fixed;
  right: 22px;
  bottom: 24px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.float-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid rgba(9, 203, 169, 0.4);
  background: rgba(7, 14, 22, 0.88);
  backdrop-filter: blur(14px);
  color: var(--brand-2);
  box-shadow: var(--shadow-2);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.float-btn:hover {
  transform: translateY(-3px) scale(1.05);
  background: rgba(9, 203, 169, 0.16);
  box-shadow: var(--shadow-brand);
}

.float-btn svg {
  width: 22px;
  height: 22px;
}

.float-btn.top svg {
  width: 19px;
  height: 19px;
}

.float-btn[hidden] {
  display: none;
}

.float-btn .tip {
  position: absolute;
  right: 62px;
  white-space: nowrap;
  font-size: 13px;
  padding: 7px 12px;
  border-radius: 9px;
  background: rgba(7, 14, 22, 0.95);
  border: 1px solid var(--line);
  color: var(--fg);
  opacity: 0;
  transform: translateX(6px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
  pointer-events: none;
}

.float-btn:hover .tip {
  opacity: 1;
  transform: none;
}

.float-btn {
  position: relative;
}

/* ---------------------------------------------------------------- 面包屑 / 页面头 */
.page-head {
  padding: calc(var(--header-h) + 76px) 0 68px;
  position: relative;
  overflow: hidden;
}

.page-head::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(9, 203, 169, 0.4), transparent);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  color: var(--fg-mute);
  margin-bottom: 22px;
}

.breadcrumb a:hover {
  color: var(--brand);
}

.breadcrumb .sep {
  color: #22303f;
}

.page-head h1 {
  max-width: 20ch;
}

/* ---------------------------------------------------------------- 文章排版 */
.prose {
  max-width: 78ch;
}

.prose h2 {
  font-size: clamp(1.35rem, 2.1vw, 1.7rem);
  letter-spacing: -0.022em;
  margin: 52px 0 18px;
  padding-top: 6px;
}

.prose h3 {
  font-size: var(--fs-h3);
  letter-spacing: -0.015em;
  margin: 34px 0 12px;
  color: #fff;
}

.prose p {
  color: var(--fg-body);
  margin-bottom: 16px;
  font-size: var(--fs-body);
  line-height: 1.92;
}

.prose ul {
  margin: 0 0 18px;
  display: grid;
  gap: 10px;
}

.prose ul li {
  position: relative;
  padding-left: 24px;
  color: var(--fg-body);
  font-size: var(--fs-body);
  line-height: 1.85;
}

.prose ul li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--brand);
  box-shadow: 0 0 10px rgba(9, 203, 169, 0.6);
}

.prose strong {
  color: #fff;
  font-weight: 600;
}

.prose blockquote {
  margin: 26px 0;
  padding: 22px 26px;
  border-left: 2px solid var(--brand);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(9, 203, 169, 0.055);
  color: #cdeee7;
  font-size: var(--fs-body);
  line-height: 1.88;
}

/* 提示框 */
.callout {
  display: flex;
  gap: 16px;
  padding: 22px 24px;
  border-radius: var(--radius);
  border: 1px solid rgba(9, 203, 169, 0.24);
  background: rgba(9, 203, 169, 0.06);
  margin: 26px 0;
}

.callout svg {
  width: 20px;
  height: 20px;
  color: var(--brand);
  flex: none;
  margin-top: 3px;
}

.callout p {
  margin: 0;
  color: #cdeee7;
  font-size: var(--fs-sm);
  line-height: 1.82;
}

/* 数据卡组 */
.kpis {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 34px 0;
}

.kpi {
  padding: 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.012));
}

.kpi b {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.7rem;
  color: var(--brand-2);
  line-height: 1.15;
}

.kpi span {
  display: block;
  font-size: 13px;
  color: var(--fg-mute);
  margin-top: 6px;
}

/* ---------------------------------------------------------------- 联系信息 */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.contact-item {
  display: flex;
  gap: 18px;
  padding: 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.012));
}

.contact-item .icon-badge {
  margin-bottom: 0;
  width: 46px;
  height: 46px;
  flex: none;
}

.contact-item h3 {
  font-size: var(--fs-sm);
  color: var(--fg-mute);
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 7px;
}

.contact-item .val {
  font-size: 17px;
  color: #fff;
  font-weight: 600;
  line-height: 1.5;
}

.contact-item .val a:hover {
  color: var(--brand-2);
}

.contact-item .sub {
  font-size: var(--fs-xs);
  color: var(--fg-mute);
  margin-top: 6px;
}

.contact-item .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* ---------------------------------------------------------------- 图片预览 */
.zoomable {
  cursor: zoom-in;
  position: relative;
  display: block;
}

.zoomable::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: rgba(4, 7, 13, 0);
  transition: background 0.3s var(--ease);
  pointer-events: none;
}

.zoomable:hover::after {
  background: rgba(4, 7, 13, 0.22);
}

.zoom-hint {
  position: absolute;
  right: 12px;
  bottom: 12px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  border-radius: 8px;
  font-size: var(--fs-xs);
  color: #eaf3ff;
  background: rgba(4, 7, 13, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(8px);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}

.zoomable:hover .zoom-hint {
  opacity: 1;
  transform: none;
}

.zoom-hint svg {
  width: 13px;
  height: 13px;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  padding: 5vh 4vw;
  background: rgba(3, 6, 11, 0.9);
  backdrop-filter: blur(14px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s var(--ease);
}

.lightbox.open {
  opacity: 1;
  pointer-events: auto;
}

.lightbox img {
  max-width: 100%;
  max-height: 84vh;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 40px 90px -30px rgba(0, 0, 0, 0.95);
  background: #fff;
}

.lightbox figcaption {
  margin-top: 16px;
  text-align: center;
  font-size: var(--fs-sm);
  color: var(--fg-dim);
}

.lightbox-close {
  position: absolute;
  top: 22px;
  right: 22px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(10, 16, 26, 0.7);
  color: #eaf3ff;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}

.lightbox-close:hover {
  background: rgba(9, 203, 169, 0.24);
  transform: scale(1.06);
}

.lightbox-close svg {
  width: 20px;
  height: 20px;
}

/* ---------------------------------------------------------------- 微信联系 */
.wechat-block {
  display: flex;
  gap: 18px;
  align-items: center;
}

.wechat-qr {
  width: 108px;
  height: 108px;
  flex: none;
  border-radius: 12px;
  background: #fff;
  padding: 6px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
}

.wechat-qr img,
.wechat-qr svg {
  width: 100%;
  height: 100%;
  border-radius: 6px;
}

.wechat-id {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.copy-btn {
  font-size: var(--fs-xs);
  padding: 4px 9px;
  border-radius: 7px;
  border: 1px solid rgba(9, 203, 169, 0.36);
  background: rgba(9, 203, 169, 0.1);
  color: var(--brand-2);
  font-weight: 600;
  transition: background 0.22s var(--ease);
}

.copy-btn:hover {
  background: rgba(9, 203, 169, 0.2);
}

/* ---------------------------------------------------------------- 动效 */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

[data-reveal].in {
  opacity: 1;
  transform: none;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.reveal-1 {
  animation: fade-up 0.7s var(--ease) both;
}
.reveal-2 {
  animation: fade-up 0.7s 0.08s var(--ease) both;
}
.reveal-3 {
  animation: fade-up 0.7s 0.16s var(--ease) both;
}
.reveal-4 {
  animation: fade-up 0.7s 0.24s var(--ease) both;
}

/* ---------------------------------------------------------------- 响应式 */
@media (max-width: 1080px) {
  .grid-4,
  .grid-5,
  .kpis,
  .stats,
  .gallery,
  .gallery--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .case-grid,
  .grid-3,
  .app-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .logo-wall {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .split,
  .split--media {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .cta-inner {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px;
  }
}

@media (max-width: 860px) {
  :root {
    --header-h: 64px;
  }
  /* 双栏图文与左右等分在平板窄屏即堆叠，避免文字列被挤到几十像素 */
  .media-split,
  .media-split--rev,
  .split--half {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  /* 侧栏 min-width 在手机上会撑破容器 */
  .side-stack {
    min-width: 0;
  }
  .nav,
  .header-tel {
    display: none;
  }
  .nav-toggle {
    display: grid;
  }
  .site-header .shell {
    gap: 14px;
  }
  .brand .brand-text span {
    display: none;
  }
  .sec {
    padding: 70px 0;
  }
  .hero {
    padding-top: calc(var(--header-h) + 56px);
  }
  .cta-band {
    padding: 36px 26px;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .wechat-block {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .shell {
    padding: 0 18px;
  }
  .stats,
  .grid-3,
  .grid-4,
  .grid-5,
  .kpis,
  .case-grid,
  .app-grid,
  .gallery,
  .gallery--3 {
    grid-template-columns: 1fr;
  }
  .gallery .wide {
    grid-column: span 1;
  }
  .logo-wall {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .card {
    padding: 24px;
  }
  .float-cta {
    right: 14px;
    bottom: 16px;
  }
  .float-btn {
    width: 48px;
    height: 48px;
  }
}
@media (max-width: 560px) {
  /* 小屏页头只留品牌与菜单按钮，主 CTA 交给浮动电话与抽屉 */
  .header-cta .btn {
    display: none;
  }
  .brand img.mark {
    width: 22px;
    height: 27px;
  }
  .brand .brand-text b {
    font-size: 15px;
    letter-spacing: 0.02em;
  }
}

/* ----------------------------------------------------------------
   触控目标保底（<1024px，即所有触屏设备：手机 + 平板 + 手机横屏）
   iOS HIG 与 WCAG 2.5.5 建议可点区域 ≥44×44。
   下列元素实测低于该值（页脚法务链接仅 22px 高、品牌链接 27px 高、
   抽屉按钮 40px 高），统一补足下界。
   只增加可点区域与必要的内边距，不改变配色/字号/字重。

   ⚠️ 上界必须到 1023px 而非 768px：判定依据是「触屏」而不是「小屏」。
   手机横屏时视口宽 844px，若按 768px 限制，横屏下所有触控保底都会失效
   （实测横屏 844×390 下 19 类元素重新跌破 44px）。
   ---------------------------------------------------------------- */
@media (max-width: 1023px) {
  /* 品牌 Logo 链接：实测 27px 高 */
  .brand {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
  }

  /* 汉堡菜单按钮：42px → 44px */
  .nav-toggle {
    width: 44px;
    height: 44px;
  }

  /* 页脚导航链接：原 padding 6px 0（36px 高）→ 12px 0（约 44px） */
  .footer-col a {
    padding: 12px 0;
  }

  /* 页脚法务/元信息链接（网站地图 / llms.txt / ICP / 商务合作）：
     原仅 22px 高，为全站最严重的一类 */
  .footer-bottom a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
  }

  /* 复制微信号按钮：原 31px 高 */
  .copy-btn {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 11px 13px;
  }

  /* 「查看全部案例」等箭头文字链接：原 25px 高 */
  .link-arrow {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
  }

  /* 面包屑导航（首页 / 案例中心 …）：高度已补到 44px，宽度仅 26px。
     用「内补 + 等量负外边距」扩大可点宽度而不改变视觉排布。 */
  .breadcrumb a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 0 9px;
    margin: 0 -9px;
  }

  /* 联系信息里的电话 / 邮箱 / 更多联系方式链接：原 15~20px 高 */
  .contact-item a {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
  }

  /* 筛选标签与截图切换标签：实测 43px，差 1px 未达 44 */
  .chip,
  .shot-tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
  }

  /* 小尺寸按钮（.btn-sm 固定 40px 高）：手机上补到 44 */
  .btn-sm {
    min-height: 44px;
  }

  /* 抽屉内导航本就 ≥44px（17px 内边距 + 21px 字号），此处只做兜底断言，
     避免后续改动把它改小 */
  .drawer nav a {
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  /* 抽屉底部 CTA 按钮：抽屉内容高于视口时（手机横屏仅 390px 高最明显），
     这些按钮作为 flex 子项默认 flex-shrink:1，会被压扁到 26px。
     禁止收缩并保底 44px。 */
  .drawer .btn {
    flex-shrink: 0;
    min-height: 44px;
  }
}


@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
  .bg-fx .orb {
    animation: none;
  }
}

/* 打印 */
@media print {
  .bg-fx,
  .site-header,
  .float-cta,
  .drawer {
    display: none !important;
  }
  body {
    background: #fff;
    color: #111;
  }
}